1 | #ifdef CONFIG_WITH_COMPILER
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2 | /* $Id: kmk_cc_exec.c 3233 2018-09-24 10:39:36Z bird $ */
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3 | /** @file
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4 | * kmk_cc - Make "Compiler".
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5 | */
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6 |
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7 | /*
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8 | * Copyright (c) 2015-2017 knut st. osmundsen <[email protected]>
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9 | *
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10 | * This file is part of kBuild.
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11 | *
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12 | * kBuild is free software; you can redistribute it and/or modify
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13 | * it under the terms of the GNU General Public License as published by
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14 | * the Free Software Foundation; either version 3 of the License, or
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15 | * (at your option) any later version.
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16 | *
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17 | * kBuild is distributed in the hope that it will be useful,
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18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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20 | * GNU General Public License for more details.
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21 | *
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22 | * You should have received a copy of the GNU General Public License
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23 | * along with kBuild. If not, see <http://www.gnu.org/licenses/>
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24 | *
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25 | */
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26 |
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27 |
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28 | /*********************************************************************************************************************************
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29 | * Header Files *
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30 | *********************************************************************************************************************************/
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31 | #include "makeint.h"
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32 |
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33 | #include "dep.h"
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34 | #include "variable.h"
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35 | #include "rule.h"
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36 | #include "debug.h"
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37 | #include "hash.h"
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38 | #include <ctype.h>
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39 | #ifdef HAVE_STDINT_H
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40 | # include <stdint.h>
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41 | #endif
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42 | #include <stdarg.h>
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43 | #include <assert.h>
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44 | #include "k/kDefs.h"
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45 | #include "k/kTypes.h"
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46 |
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47 |
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48 | /*********************************************************************************************************************************
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49 | * Defined Constants And Macros *
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50 | *********************************************************************************************************************************/
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51 | /** @def KMK_CC_WITH_STATS
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52 | * Enables the collection of extra statistics. */
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53 | #ifndef KMK_CC_WITH_STATS
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54 | # ifdef CONFIG_WITH_MAKE_STATS
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55 | # define KMK_CC_WITH_STATS
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56 | # endif
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57 | #endif
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58 |
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59 | /** @def KMK_CC_STRICT
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60 | * Indicates whether assertions and other checks are enabled. */
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61 | #ifndef KMK_CC_STRICT
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62 | # ifndef NDEBUG
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63 | # define KMK_CC_STRICT
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64 | # endif
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65 | #endif
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66 |
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67 | #ifdef KMK_CC_STRICT
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68 | # ifdef _MSC_VER
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69 | # define KMK_CC_ASSERT(a_TrueExpr) do { if (!(a_TrueExpr)) __debugbreak(); } while (0)
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70 | # elif defined(__GNUC__) && (defined(KBUILD_ARCH_X86) || defined(KBUILD_ARCH_AMD64))
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71 | # define KMK_CC_ASSERT(a_TrueExpr) do { if (!(a_TrueExpr)) __asm__ __volatile__("int3;nop"); } while (0)
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72 | # else
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73 | # define KMK_CC_ASSERT(a_TrueExpr) assert(a_TrueExpr)
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74 | # endif
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75 | #else
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76 | # define KMK_CC_ASSERT(a_TrueExpr) do {} while (0)
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77 | #endif
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78 | #define KMK_CC_ASSERT_ALIGNED(a_uValue, a_uAlignment) \
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79 | KMK_CC_ASSERT( ((a_uValue) & ((a_uAlignment) - 1)) == 0 )
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80 |
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81 |
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82 | /** @def KMK_CC_OFFSETOF
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83 | * Offsetof for simple stuff. */
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84 | #if defined(__GNUC__)
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85 | # define KMK_CC_OFFSETOF(a_Struct, a_Member) __builtin_offsetof(a_Struct, a_Member)
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86 | #else
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87 | # define KMK_CC_OFFSETOF(a_Struct, a_Member) ( (uintptr_t)&( ((a_Struct *)(void *)0)->a_Member) )
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88 | #endif
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89 |
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90 | /** def KMK_CC_SIZEOF_MEMBER */
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91 | #define KMK_CC_SIZEOF_MEMBER(a_Struct, a_Member) ( sizeof( ((a_Struct *)(void *)0x1000)->a_Member) )
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92 |
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93 | /** @def KMK_CC_SIZEOF_VAR_STRUCT
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94 | * Size of a struct with a variable sized array as the final member. */
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95 | #define KMK_CC_SIZEOF_VAR_STRUCT(a_Struct, a_FinalArrayMember, a_cArray) \
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96 | ( KMK_CC_OFFSETOF(a_Struct, a_FinalArrayMember) + KMK_CC_SIZEOF_MEMBER(a_Struct, a_FinalArrayMember) * (a_cArray) )
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97 |
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98 |
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99 |
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100 | /** @def KMK_CC_STATIC_ASSERT_EX
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101 | * Compile time assertion with text.
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102 | */
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103 | #ifdef _MSC_VER_
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104 | # if _MSC_VER >= 1600
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105 | # define KMK_CC_STATIC_ASSERT_EX(a_Expr, a_szExpl) static_assert(a_Expr, a_szExpl)
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106 | # else
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107 | # define KMK_CC_STATIC_ASSERT_EX(a_Expr, a_szExpl) typedef int RTASSERTVAR[(a_Expr) ? 1 : 0]
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108 | # endif
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109 | #elif defined(__GNUC__) && defined(__GXX_EXPERIMENTAL_CXX0X__)
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110 | # define KMK_CC_STATIC_ASSERT_EX(a_Expr, a_szExpl) static_assert(a_Expr, a_szExpl)
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111 | #elif !defined(__GNUC__) && !defined(__IBMC__) && !defined(__IBMCPP__)
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112 | # define KMK_CC_STATIC_ASSERT_EX(a_Expr, a_szExpl) typedef int KMK_CC_STATIC_ASSERT_EX_TYPE[(a_Expr) ? 1 : 0]
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113 | #else
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114 | # define KMK_CC_STATIC_ASSERT_EX(a_Expr, a_szExpl) extern int KMK_CC_STATIC_ASSERT_EX_VAR[(a_Expr) ? 1 : 0]
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115 | extern int KMK_CC_STATIC_ASSERT_EX_VAR[1];
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116 | #endif
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117 | /** @def KMK_CC_STATIC_ASSERT
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118 | * Compile time assertion, simple variant.
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119 | */
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120 | #define KMK_CC_STATIC_ASSERT(a_Expr) KMK_CC_STATIC_ASSERT_EX(a_Expr, #a_Expr)
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121 |
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122 |
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123 | /** Aligns a size for the block allocator. */
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124 | #define KMK_CC_BLOCK_ALIGN_SIZE(a_cb) ( ((a_cb) + (sizeof(void *) - 1U)) & ~(uint32_t)(sizeof(void *) - 1U) )
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125 |
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126 | /** How to declare a no-return function.
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127 | * Place between scope (if any) and return type. */
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128 | #ifdef _MSC_VER
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129 | # define KMK_CC_FN_NO_RETURN __declspec(noreturn)
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130 | #elif defined(__GNUC__)
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131 | # define KMK_CC_FN_NO_RETURN __attribute__((__noreturn__))
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132 | #endif
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133 |
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134 | /** Block allocator logging. */
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135 | //#define KMK_CC_BLOCK_LOGGING_ENABLED
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136 | #ifdef KMK_CC_BLOCK_LOGGING_ENABLED
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137 | # define KMK_CC_BLOCK_DPRINTF_UNPACK(...) __VA_ARGS__
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138 | # define KMK_CC_BLOCK_DPRINTF(a) fprintf(stderr, KMK_CC_BLOCK_DPRINTF_UNPACK a)
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139 | #else
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140 | # define KMK_CC_BLOCK_DPRINTF(a) do { } while (0)
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141 | #endif
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142 |
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143 |
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144 | /** @defgroup grp_kmk_cc_evalprog Makefile Evaluation
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145 | * @{
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146 | */
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147 | #define KMK_CC_EVAL_LOGGING_ENABLED
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148 | #ifdef KMK_CC_EVAL_LOGGING_ENABLED
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149 | # define KMK_CC_EVAL_DPRINTF_UNPACK(...) __VA_ARGS__
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150 | # define KMK_CC_EVAL_DPRINTF(a) fprintf(stderr, KMK_CC_EVAL_DPRINTF_UNPACK a)
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151 | #else
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152 | # define KMK_CC_EVAL_DPRINTF(a) do { } while (0)
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153 | #endif
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154 |
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155 | /** @name KMK_CC_EVAL_QUALIFIER_XXX - Variable qualifiers.
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156 | * @{ */
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157 | #define KMK_CC_EVAL_QUALIFIER_LOCAL 1
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158 | #define KMK_CC_EVAL_QUALIFIER_EXPORT 2
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159 | #define KMK_CC_EVAL_QUALIFIER_OVERRIDE 4
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160 | #define KMK_CC_EVAL_QUALIFIER_PRIVATE 8
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161 | /** @} */
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162 |
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163 | /** Eval: Max makefile size we accept as input (in bytes). */
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164 | #define KMK_CC_EVAL_MAX_COMPILE_SIZE (16*1024*1024)
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165 |
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166 | /** Eval: Max nesting depth of makefile conditionals.
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167 | * Affects stack usage in kmk_cc_eval_compile_worker. */
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168 | #define KMK_CC_EVAL_MAX_IF_DEPTH 32
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169 | /** Eval: Maximum number of escaped end of line sequences to track.
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170 | * Affects stack usage in kmk_cc_eval_compile_worker, but not the actual
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171 | * number of consequtive escaped newlines in the input file/variable. */
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172 | #define KMK_CC_EVAL_MAX_ESC_EOLS 2
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173 |
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174 | /** Minimum keyword length. */
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175 | #define KMK_CC_EVAL_KEYWORD_MIN 2
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176 | /** Maximum keyword length. */
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177 | #define KMK_CC_EVAL_KEYWORD_MAX 16
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178 |
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179 | /** @name KMK_CC_EVAL_CH_XXX - flags found in g_abEvalCcChars.
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180 | * @{ */
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181 | /** Normal character, nothing special. */
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182 | #define KMK_CC_EVAL_CH_NORMAL UINT16_C(0)
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183 | /** Blank character. */
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184 | #define KMK_CC_EVAL_CH_BLANK UINT16_C(1)
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185 | #define KMK_CC_EVAL_IS_BLANK(a_ch) (KMK_CC_EVAL_BM_GET(g_abEvalCcChars, a_ch) & KMK_CC_EVAL_CH_BLANK)
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186 | /** Space character. */
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187 | #define KMK_CC_EVAL_CH_SPACE UINT16_C(2)
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188 | #define KMK_CC_EVAL_IS_SPACE(a_ch) (KMK_CC_EVAL_BM_GET(g_abEvalCcChars, a_ch) & KMK_CC_EVAL_CH_SPACE)
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189 | /** Space character or potential EOL escape backslash. */
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190 | #define KMK_CC_EVAL_CH_SPACE_OR_BACKSLASH UINT16_C(4)
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191 | #define KMK_CC_EVAL_IS_SPACE_OR_BACKSLASH(a_ch) (KMK_CC_EVAL_BM_GET(g_abEvalCcChars, a_ch) & KMK_CC_EVAL_CH_SPACE_OR_BACKSLASH)
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192 | /** Anything we need to take notice of when parsing something could be a
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193 | * variable name or a recipe.
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194 | * All space characters, backslash (EOL escape), variable expansion dollar,
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195 | * variable assignment operator chars, recipe colon and recipe percent. */
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196 | #define KMK_CC_EVAL_CH_SPACE_VAR_OR_RECIPE UINT16_C(8)
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197 | #define KMK_CC_EVAL_IS_SPACE_VAR_OR_RECIPE(a_ch) (KMK_CC_EVAL_BM_GET(g_abEvalCcChars, a_ch) & KMK_CC_EVAL_CH_SPACE_VAR_OR_RECIPE)
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198 | /** Dollar character (possible variable expansion). */
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199 | #define KMK_CC_EVAL_CH_DOLLAR UINT16_C(16)
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200 | #define KMK_CC_EVAL_IS_DOLLAR(a_ch) (KMK_CC_EVAL_BM_GET(g_abEvalCcChars, a_ch) & KMK_CC_EVAL_CH_DOLLAR)
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201 | /** Dollar character (possible variable expansion). */
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202 | #define KMK_CC_EVAL_CH_BACKSLASH UINT16_C(32)
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203 | #define KMK_CC_EVAL_IS_BACKSLASH(a_ch) (KMK_CC_EVAL_BM_GET(g_abEvalCcChars, a_ch) & KMK_CC_EVAL_CH_BACKSLASH)
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204 | /** Possible EOL character. */
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205 | #define KMK_CC_EVAL_CH_EOL_CANDIDATE UINT16_C(64)
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206 | #define KMK_CC_EVAL_IS_EOL_CANDIDATE(a_ch) (KMK_CC_EVAL_BM_GET(g_abEvalCcChars, a_ch) & KMK_CC_EVAL_CH_EOL_CANDIDATE)
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207 | /** First character in a keyword. */
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208 | #define KMK_CC_EVAL_CH_1ST_IN_KEYWORD UINT16_C(128)
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209 | #define KMK_CC_EVAL_IS_1ST_IN_KEYWORD(a_ch) (KMK_CC_EVAL_BM_GET(g_abEvalCcChars, a_ch) & KMK_CC_EVAL_CH_1ST_IN_KEYWORD)
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210 | /** Second character in a keyword. */
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211 | #define KMK_CC_EVAL_CH_2ND_IN_KEYWORD UINT16_C(256)
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212 | #define KMK_CC_EVAL_IS_2ND_IN_KEYWORD(a_ch) (KMK_CC_EVAL_BM_GET(g_abEvalCcChars, a_ch) & KMK_CC_EVAL_CH_2ND_IN_KEYWORD)
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213 | /** First character in a variable qualifier keyword or 'define'. */
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214 | #define KMK_CC_EVAL_CH_1ST_IN_VARIABLE_KEYWORD UINT16_C(512)
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215 | #define KMK_CC_EVAL_IS_1ST_IN_VARIABLE_KEYWORD(a_ch) (KMK_CC_EVAL_BM_GET(g_abEvalCcChars, a_ch) & KMK_CC_EVAL_CH_1ST_IN_VARIABLE_KEYWORD)
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216 | /** Used when parsing variable names, looking for the end of a nested
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217 | * variable reference. Matches parentheses and backslash (escaped eol). */
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218 | #define KMK_CC_EVAL_CH_PAREN_OR_SLASH UINT16_C(1024)
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219 | #define KMK_CC_EVAL_IS_PAREN_OR_SLASH(a_ch) (KMK_CC_EVAL_BM_GET(g_abEvalCcChars, a_ch) & KMK_CC_EVAL_CH_PAREN_OR_SLASH)
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220 | /** Used when parsing ifeq/ifneq (,) sequences.
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221 | * Matches parentheses, comma and dollar (for non-plain string detection). */
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222 | #define KMK_CC_EVAL_CH_PAREN_COMMA_OR_DOLLAR UINT16_C(2048)
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223 | #define KMK_CC_EVAL_IS_PAREN_COMMA_OR_DOLLAR(a_ch) (KMK_CC_EVAL_BM_GET(g_abEvalCcChars, a_ch) & KMK_CC_EVAL_CH_PAREN_COMMA_OR_DOLLAR)
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224 |
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225 | /** Test of space or dollar characters. */
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226 | #define KMK_CC_EVAL_IS_SPACE_OR_DOLLAR(a_ch) (KMK_CC_EVAL_BM_GET(g_abEvalCcChars, a_ch) & (KMK_CC_EVAL_CH_SPACE | KMK_CC_EVAL_CH_DOLLAR))
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227 | /** Test of space, dollar or backslash (possible EOL escape) characters. */
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228 | #define KMK_CC_EVAL_IS_SPACE_DOLLAR_OR_SLASH(a_ch) (KMK_CC_EVAL_BM_GET(g_abEvalCcChars, a_ch) & (KMK_CC_EVAL_CH_SPACE | KMK_CC_EVAL_CH_DOLLAR | KMK_CC_EVAL_CH_BACKSLASH))
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229 | /** Test of space, dollar, backslash (possible EOL escape) or variable
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230 | * assingment characters. */
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231 | #define KMK_CC_EVAL_IS_SPACE_DOLLAR_SLASH_OR_ASSIGN(a_ch) \
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232 | (KMK_CC_EVAL_BM_GET(g_abEvalCcChars, a_ch) & (KMK_CC_EVAL_CH_SPACE | KMK_CC_EVAL_CH_SPACE_VAR_OR_RECIPE | KMK_CC_EVAL_CH_DOLLAR))
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233 | /** @} */
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234 |
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235 | /** Sets a bitmap entry.
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236 | * @param a_abBitmap Typically g_abEvalCcChars.
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237 | * @param a_ch The character to set.
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238 | * @param a_uVal The value to OR in. */
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239 | #define KMK_CC_EVAL_BM_OR(g_abBitmap, a_ch, a_uVal) do { (g_abBitmap)[(unsigned char)(a_ch)] |= (a_uVal); } while (0)
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240 |
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241 | /** Gets a bitmap entry.
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242 | * @returns The value corresponding to @a a_ch.
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243 | * @param a_abBitmap Typically g_abEvalCcChars.
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244 | * @param a_ch The character to set. */
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245 | #define KMK_CC_EVAL_BM_GET(g_abBitmap, a_ch) ( (g_abBitmap)[(unsigned char)(a_ch)] )
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246 |
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247 | /** @} */
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248 |
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249 |
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250 | /*********************************************************************************************************************************
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251 | * Structures and Typedefs *
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252 | *********************************************************************************************************************************/
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253 | /**
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254 | * Block of instructions.
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255 | *
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256 | * To avoid wasting space on "next" pointers, as well as a lot of time walking
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257 | * these chains when destroying programs, we work with blocks of instructions.
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258 | */
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259 | typedef struct kmk_cc_block
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260 | {
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261 | /** The pointer to the next block (LIFO). */
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262 | struct kmk_cc_block *pNext;
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263 | /** The size of this block. */
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264 | uint32_t cbBlock;
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265 | /** The offset of the next free byte in the block. When set to cbBlock the
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266 | * block is 100% full. */
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267 | uint32_t offNext;
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268 | } KMKCCBLOCK;
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269 | typedef KMKCCBLOCK *PKMKCCBLOCK;
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270 |
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271 |
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272 | /** @defgroup grp_kmk_cc_exp String Expansion
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273 | * @{*/
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274 |
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275 | /**
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276 | * String expansion statistics.
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277 | */
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278 | typedef struct KMKCCEXPSTATS
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279 | {
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280 | /** Recent average size. */
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281 | uint32_t cchAvg;
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282 | } KMKCCEXPSTATS;
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283 | typedef KMKCCEXPSTATS *PKMKCCEXPSTATS;
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284 |
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285 | /**
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286 | * Expansion instructions.
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287 | */
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288 | typedef enum KMKCCEXPINSTR
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289 | {
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290 | /** Copy a plain string. */
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291 | kKmkCcExpInstr_CopyString = 0,
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292 | /** Insert an expanded variable value, which name we already know. */
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293 | kKmkCcExpInstr_PlainVariable,
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294 | /** Insert an expanded variable value, the name is dynamic (sub prog). */
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295 | kKmkCcExpInstr_DynamicVariable,
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296 | /** Insert an expanded variable value, which name we already know, doing
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297 | * search an replace on a string. */
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298 | kKmkCcExpInstr_SearchAndReplacePlainVariable,
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299 | /** Insert the output of function that requires no argument expansion. */
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300 | kKmkCcExpInstr_PlainFunction,
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301 | /** Insert the output of function that requires dynamic expansion of one ore
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302 | * more arguments. (Dynamic is perhaps not such a great name, but whatever.) */
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303 | kKmkCcExpInstr_DynamicFunction,
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304 | /** Jump to a new instruction block. */
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305 | kKmkCcExpInstr_Jump,
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306 | /** We're done, return. Has no specific structure. */
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307 | kKmkCcExpInstr_Return,
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308 | /** The end of valid instructions (exclusive). */
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309 | kKmkCcExpInstr_End
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310 | } KMKCCEXPINSTR;
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311 |
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312 | /** Instruction core. */
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313 | typedef struct kmk_cc_exp_core
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314 | {
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315 | /** The instruction opcode number (KMKCCEXPINSTR). */
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316 | KMKCCEXPINSTR enmOpcode;
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317 | } KMKCCEXPCORE;
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318 | typedef KMKCCEXPCORE *PKMKCCEXPCORE;
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319 |
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320 | /**
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321 | * String expansion subprogram.
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322 | */
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323 | #pragma pack(1) /* save some precious bytes */
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324 | typedef struct kmk_cc_exp_subprog
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325 | {
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326 | /** Pointer to the first instruction. */
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327 | PKMKCCEXPCORE pFirstInstr;
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328 | /** Statistics. */
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329 | KMKCCEXPSTATS Stats;
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330 | } KMKCCEXPSUBPROG;
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331 | #pragma pack()
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332 | typedef KMKCCEXPSUBPROG *PKMKCCEXPSUBPROG;
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333 | KMK_CC_STATIC_ASSERT(sizeof(KMKCCEXPSUBPROG) == 12 || sizeof(void *) != 8);
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334 |
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335 |
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336 | /**
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337 | * String expansion subprogram or plain string.
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338 | */
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339 | #pragma pack(1) /* save some precious bytes */
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340 | typedef struct kmk_cc_exp_subprog_or_string
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341 | {
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342 | /** Either a plain string pointer or a subprogram. */
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343 | union
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344 | {
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345 | /** Subprogram for expanding this argument. */
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346 | KMKCCEXPSUBPROG Subprog;
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347 | /** Pointer to the plain string. */
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348 | struct
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349 | {
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350 | /** Pointer to the string. */
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351 | const char *psz;
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352 | /** String length. */
|
---|
353 | uint32_t cch;
|
---|
354 | } Plain;
|
---|
355 | } u;
|
---|
356 | /** Set if subprogram (u.Subprog), clear if plain string (u.Plain). */
|
---|
357 | uint8_t fSubprog;
|
---|
358 | /** Set if the plain string is kept in the variable_strcache.
|
---|
359 | * @remarks Here rather than in u.Plain to make use of alignment padding. */
|
---|
360 | uint8_t fPlainIsInVarStrCache;
|
---|
361 | /** Context/user specific. */
|
---|
362 | uint8_t bUser;
|
---|
363 | /** Context/user specific #2. */
|
---|
364 | uint8_t bUser2;
|
---|
365 | } KMKCCEXPSUBPROGORPLAIN;
|
---|
366 | #pragma pack()
|
---|
367 | typedef KMKCCEXPSUBPROGORPLAIN *PKMKCCEXPSUBPROGORPLAIN;
|
---|
368 | KMK_CC_STATIC_ASSERT( sizeof(void *) == 8
|
---|
369 | ? sizeof(KMKCCEXPSUBPROGORPLAIN) == 16
|
---|
370 | : sizeof(void *) == 4
|
---|
371 | ? sizeof(KMKCCEXPSUBPROGORPLAIN) == 12
|
---|
372 | : 1);
|
---|
373 |
|
---|
374 | /**
|
---|
375 | * kKmkCcExpInstr_CopyString instruction format.
|
---|
376 | */
|
---|
377 | typedef struct kmk_cc_exp_copy_string
|
---|
378 | {
|
---|
379 | /** The core instruction. */
|
---|
380 | KMKCCEXPCORE Core;
|
---|
381 | /** The number of bytes to copy. */
|
---|
382 | uint32_t cchCopy;
|
---|
383 | /** Pointer to the source string (not terminated at cchCopy). */
|
---|
384 | const char *pachSrc;
|
---|
385 | } KMKCCEXPCOPYSTRING;
|
---|
386 | typedef KMKCCEXPCOPYSTRING *PKMKCCEXPCOPYSTRING;
|
---|
387 |
|
---|
388 | /**
|
---|
389 | * kKmkCcExpInstr_PlainVariable instruction format.
|
---|
390 | */
|
---|
391 | typedef struct kmk_cc_exp_plain_variable
|
---|
392 | {
|
---|
393 | /** The core instruction. */
|
---|
394 | KMKCCEXPCORE Core;
|
---|
395 | /** The name of the variable (points into variable_strcache). */
|
---|
396 | const char *pszName;
|
---|
397 | } KMKCCEXPPLAINVAR;
|
---|
398 | typedef KMKCCEXPPLAINVAR *PKMKCCEXPPLAINVAR;
|
---|
399 |
|
---|
400 | /**
|
---|
401 | * kKmkCcExpInstr_DynamicVariable instruction format.
|
---|
402 | */
|
---|
403 | typedef struct kmk_cc_exp_dynamic_variable
|
---|
404 | {
|
---|
405 | /** The core instruction. */
|
---|
406 | KMKCCEXPCORE Core;
|
---|
407 | /** The subprogram that will give us the variable name. */
|
---|
408 | KMKCCEXPSUBPROG Subprog;
|
---|
409 | /** Where to continue after this instruction. (This is necessary since the
|
---|
410 | * instructions of the subprogram are emitted after this instruction.) */
|
---|
411 | PKMKCCEXPCORE pNext;
|
---|
412 | } KMKCCEXPDYNVAR;
|
---|
413 | typedef KMKCCEXPDYNVAR *PKMKCCEXPDYNVAR;
|
---|
414 |
|
---|
415 | /**
|
---|
416 | * kKmkCcExpInstr_SearchAndReplacePlainVariable instruction format.
|
---|
417 | */
|
---|
418 | typedef struct kmk_cc_exp_sr_plain_variable
|
---|
419 | {
|
---|
420 | /** The core instruction. */
|
---|
421 | KMKCCEXPCORE Core;
|
---|
422 | /** Where to continue after this instruction. (This is necessary since the
|
---|
423 | * instruction contains string data of variable size.) */
|
---|
424 | PKMKCCEXPCORE pNext;
|
---|
425 | /** The name of the variable (points into variable_strcache). */
|
---|
426 | const char *pszName;
|
---|
427 | /** Search pattern. */
|
---|
428 | const char *pszSearchPattern;
|
---|
429 | /** Replacement pattern. */
|
---|
430 | const char *pszReplacePattern;
|
---|
431 | /** Offset into pszSearchPattern of the significant '%' char. */
|
---|
432 | uint32_t offPctSearchPattern;
|
---|
433 | /** Offset into pszReplacePattern of the significant '%' char. */
|
---|
434 | uint32_t offPctReplacePattern;
|
---|
435 | } KMKCCEXPSRPLAINVAR;
|
---|
436 | typedef KMKCCEXPSRPLAINVAR *PKMKCCEXPSRPLAINVAR;
|
---|
437 |
|
---|
438 | /**
|
---|
439 | * Instruction format parts common to both kKmkCcExpInstr_PlainFunction and
|
---|
440 | * kKmkCcExpInstr_DynamicFunction.
|
---|
441 | */
|
---|
442 | typedef struct kmk_cc_exp_function_core
|
---|
443 | {
|
---|
444 | /** The core instruction. */
|
---|
445 | KMKCCEXPCORE Core;
|
---|
446 | /** Number of arguments. */
|
---|
447 | uint32_t cArgs; /**< @todo uint16_t to save 7 bytes of unecessary alignment padding on 64-bit systems, or merge fDirty into this member. */
|
---|
448 | /** Set if the function could be modifying the input arguments. */
|
---|
449 | uint8_t fDirty;
|
---|
450 | /** Where to continue after this instruction. (This is necessary since the
|
---|
451 | * instructions are of variable size and may be followed by string data.) */
|
---|
452 | PKMKCCEXPCORE pNext;
|
---|
453 | /**
|
---|
454 | * Pointer to the function table entry.
|
---|
455 | *
|
---|
456 | * @returns New variable buffer position.
|
---|
457 | * @param pchDst Current variable buffer position.
|
---|
458 | * @param papszArgs Pointer to a NULL terminated array of argument strings.
|
---|
459 | * @param pszFuncName The name of the function being called.
|
---|
460 | */
|
---|
461 | char * (*pfnFunction)(char *pchDst, char **papszArgs, const char *pszFuncName);
|
---|
462 | /** Pointer to the function name in the variable string cache. */
|
---|
463 | const char *pszFuncName;
|
---|
464 | } KMKCCEXPFUNCCORE;
|
---|
465 | typedef KMKCCEXPFUNCCORE *PKMKCCEXPFUNCCORE;
|
---|
466 |
|
---|
467 | /**
|
---|
468 | * Instruction format for kKmkCcExpInstr_PlainFunction.
|
---|
469 | */
|
---|
470 | typedef struct kmk_cc_exp_plain_function
|
---|
471 | {
|
---|
472 | /** The bits comment to both plain and dynamic functions. */
|
---|
473 | KMKCCEXPFUNCCORE FnCore;
|
---|
474 | /** Variable sized argument list (cArgs + 1 in length, last entry is NULL).
|
---|
475 | * The string pointers are to memory following this instruction, to memory in
|
---|
476 | * the next block or to memory in the variable / makefile we're working on
|
---|
477 | * (if zero terminated appropriately). */
|
---|
478 | const char *apszArgs[1];
|
---|
479 | } KMKCCEXPPLAINFUNC;
|
---|
480 | typedef KMKCCEXPPLAINFUNC *PKMKCCEXPPLAINFUNC;
|
---|
481 | /** Calculates the size of an KMKCCEXPPLAINFUNC structure with the apszArgs
|
---|
482 | * member holding a_cArgs entries plus a NULL terminator. */
|
---|
483 | #define KMKCCEXPPLAINFUNC_SIZE(a_cArgs) KMK_CC_SIZEOF_VAR_STRUCT(KMKCCEXPDYNFUNC, aArgs, (a_cArgs) + 1)
|
---|
484 |
|
---|
485 | /**
|
---|
486 | * Instruction format for kKmkCcExpInstr_DynamicFunction.
|
---|
487 | */
|
---|
488 | typedef struct kmk_cc_exp_dyn_function
|
---|
489 | {
|
---|
490 | /** The bits comment to both plain and dynamic functions. */
|
---|
491 | KMKCCEXPFUNCCORE FnCore;
|
---|
492 | /** Variable sized argument list (FnCore.cArgs in length).
|
---|
493 | * The subprograms / strings are allocated after this array (or in the next
|
---|
494 | * block). */
|
---|
495 | KMKCCEXPSUBPROGORPLAIN aArgs[1];
|
---|
496 | } KMKCCEXPDYNFUNC;
|
---|
497 | typedef KMKCCEXPDYNFUNC *PKMKCCEXPDYNFUNC;
|
---|
498 | /** Calculates the size of an KMKCCEXPDYNFUNC structure with the apszArgs
|
---|
499 | * member holding a_cArgs entries (no zero terminator). */
|
---|
500 | #define KMKCCEXPDYNFUNC_SIZE(a_cArgs) KMK_CC_SIZEOF_VAR_STRUCT(KMKCCEXPDYNFUNC, aArgs, a_cArgs)
|
---|
501 |
|
---|
502 | /**
|
---|
503 | * Instruction format for kKmkCcExpInstr_Jump.
|
---|
504 | */
|
---|
505 | typedef struct kmk_cc_exp_jump
|
---|
506 | {
|
---|
507 | /** The core instruction. */
|
---|
508 | KMKCCEXPCORE Core;
|
---|
509 | /** Where to jump to (new instruction block, typically). */
|
---|
510 | PKMKCCEXPCORE pNext;
|
---|
511 | } KMKCCEXPJUMP;
|
---|
512 | typedef KMKCCEXPJUMP *PKMKCCEXPJUMP;
|
---|
513 |
|
---|
514 | /**
|
---|
515 | * String expansion program.
|
---|
516 | */
|
---|
517 | typedef struct kmk_cc_expandprog
|
---|
518 | {
|
---|
519 | /** Pointer to the first instruction for this program. */
|
---|
520 | PKMKCCEXPCORE pFirstInstr;
|
---|
521 | /** List of blocks for this program (LIFO). */
|
---|
522 | PKMKCCBLOCK pBlockTail;
|
---|
523 | /** Statistics. */
|
---|
524 | KMKCCEXPSTATS Stats;
|
---|
525 | #ifdef KMK_CC_STRICT
|
---|
526 | /** The hash of the input string. Used to check that we get all the change
|
---|
527 | * notifications we require. */
|
---|
528 | uint32_t uInputHash;
|
---|
529 | #endif
|
---|
530 | /** Reference count. */
|
---|
531 | uint32_t volatile cRefs;
|
---|
532 | } KMKCCEXPPROG;
|
---|
533 | /** Pointer to a string expansion program. */
|
---|
534 | typedef KMKCCEXPPROG *PKMKCCEXPPROG;
|
---|
535 |
|
---|
536 | /** @} */
|
---|
537 |
|
---|
538 |
|
---|
539 | /** @addtogroup grp_kmk_cc_evalprog
|
---|
540 | * @{ */
|
---|
541 |
|
---|
542 | /** Pointer to a makefile evaluation program. */
|
---|
543 | typedef struct kmk_cc_evalprog *PKMKCCEVALPROG;
|
---|
544 |
|
---|
545 | /**
|
---|
546 | * Makefile evaluation instructions.
|
---|
547 | */
|
---|
548 | typedef enum KMKCCEVALINSTR
|
---|
549 | {
|
---|
550 | /** Jump instruction - KMKCCEVALJUMP. */
|
---|
551 | kKmkCcEvalInstr_jump = 0,
|
---|
552 |
|
---|
553 | /** [local|override|export] variable = value - KMKCCEVALASSIGN.
|
---|
554 | * @note Can be used for target-specific variables. */
|
---|
555 | kKmkCcEvalInstr_assign_recursive,
|
---|
556 | /** [local|override|export] variable := value - KMKCCEVALASSIGN.
|
---|
557 | * Also: [local|override|export] define variable := ... endef
|
---|
558 | * @note Can be used for target-specific variables. */
|
---|
559 | kKmkCcEvalInstr_assign_simple,
|
---|
560 | /** [local|override|export] variable += value - KMKCCEVALASSIGN.
|
---|
561 | * Also: [local|override|export] define variable += ... endef
|
---|
562 | * @note Can be used for target-specific variables. */
|
---|
563 | kKmkCcEvalInstr_assign_append,
|
---|
564 | /** [local|override|export] variable <= value - KMKCCEVALASSIGN.
|
---|
565 | * Also: [local|override|export] define variable <= ... endef
|
---|
566 | * @note Can be used for target-specific variables. */
|
---|
567 | kKmkCcEvalInstr_assign_prepend,
|
---|
568 | /** [local|override|export] variable ?= value - KMKCCEVALASSIGN.
|
---|
569 | * @note Can be used for target-specific variables. */
|
---|
570 | kKmkCcEvalInstr_assign_if_new,
|
---|
571 | /* [local|override|export] define variable[=] ... endef - KMKCCEVALASSIGNDEF. */
|
---|
572 | kKmkCcEvalInstr_define_recursive,
|
---|
573 | /* [local|override|export] define variable ?= ... endef - KMKCCEVALASSIGNDEF. */
|
---|
574 | kKmkCcEvalInstr_define_if_new,
|
---|
575 |
|
---|
576 | /** export variable1 [variable2...] - KMKCCEVALVARIABLES. */
|
---|
577 | kKmkCcEvalInstr_export,
|
---|
578 | /** unexport variable1 [variable2...] - KMKCCEVALVARIABLES. */
|
---|
579 | kKmkCcEvalInstr_unexport,
|
---|
580 | /** export - KMKCCEVALCORE. */
|
---|
581 | kKmkCcEvalInstr_export_all,
|
---|
582 | /** unexport - KMKCCEVALCORE. */
|
---|
583 | kKmkCcEvalInstr_unexport_all,
|
---|
584 | /** [local|override] undefine - KMKCCEVALVARIABLES. */
|
---|
585 | kKmkCcEvalInstr_undefine,
|
---|
586 |
|
---|
587 | /** [else] ifdef variable - KMKCCEVALIFDEFPLAIN. */
|
---|
588 | kKmkCcEvalInstr_ifdef_plain,
|
---|
589 | /** [else] ifndef variable - KMKCCEVALIFDEFPLAIN. */
|
---|
590 | kKmkCcEvalInstr_ifndef_plain,
|
---|
591 | /** [else] ifdef variable - KMKCCEVALIFDEFDYNAMIC. */
|
---|
592 | kKmkCcEvalInstr_ifdef_dynamic,
|
---|
593 | /** [else] ifndef variable - KMKCCEVALIFDEFDYNAMIC. */
|
---|
594 | kKmkCcEvalInstr_ifndef_dynamic,
|
---|
595 | /** [else] ifeq (a,b) - KMKCCEVALIFEQ. */
|
---|
596 | kKmkCcEvalInstr_ifeq,
|
---|
597 | /** [else] ifeq (a,b) - KMKCCEVALIFEQ. */
|
---|
598 | kKmkCcEvalInstr_ifneq,
|
---|
599 | /** [else] if1of (set-a,set-b) - KMKCCEVALIF1OF. */
|
---|
600 | kKmkCcEvalInstr_if1of,
|
---|
601 | /** [else] ifn1of (set-a,set-b) - KMKCCEVALIF1OF. */
|
---|
602 | kKmkCcEvalInstr_ifn1of,
|
---|
603 | /** [else] if expr - KMKCCEVALIFEXPR. */
|
---|
604 | kKmkCcEvalInstr_if,
|
---|
605 |
|
---|
606 | /** include file1 [file2...] - KMKCCEVALINCLUDE. */
|
---|
607 | kKmkCcEvalInstr_include,
|
---|
608 | /** [sinclude|-include] file1 [file2...] - KMKCCEVALINCLUDE. */
|
---|
609 | kKmkCcEvalInstr_include_silent,
|
---|
610 | /** includedep file1 [file2...] - KMKCCEVALINCLUDE. */
|
---|
611 | kKmkCcEvalInstr_includedep,
|
---|
612 | /** includedep-queue file1 [file2...] - KMKCCEVALINCLUDE. */
|
---|
613 | kKmkCcEvalInstr_includedep_queue,
|
---|
614 | /** includedep-flush file1 [file2...] - KMKCCEVALINCLUDE. */
|
---|
615 | kKmkCcEvalInstr_includedep_flush,
|
---|
616 |
|
---|
617 | /** Recipe without commands (defines dependencies) - KMKCCEVALRECIPE. */
|
---|
618 | kKmkCcEvalInstr_recipe_no_commands,
|
---|
619 | /** Recipe with commands (defines dependencies) - KMKCCEVALRECIPE. */
|
---|
620 | kKmkCcEvalInstr_recipe_start_normal,
|
---|
621 | /** Recipe with commands (defines dependencies) - KMKCCEVALRECIPE. */
|
---|
622 | kKmkCcEvalInstr_recipe_start_double_colon,
|
---|
623 | /** Recipe with commands (defines dependencies) - KMKCCEVALRECIPE. */
|
---|
624 | kKmkCcEvalInstr_recipe_start_pattern,
|
---|
625 | /** Adds more commands to the current recipe - KMKCCEVALRECIPECOMMANDS. */
|
---|
626 | kKmkCcEvalInstr_recipe_commands,
|
---|
627 | /** Special instruction for indicating the end of the recipe commands - KMKCCEVALCORE. */
|
---|
628 | kKmkCcEvalInstr_recipe_end,
|
---|
629 | /** Cancel previously defined pattern rule - KMKCCEVALRECIPE. */
|
---|
630 | kKmkCcEvalInstr_recipe_cancel_pattern,
|
---|
631 |
|
---|
632 | /** @todo target variables. */
|
---|
633 |
|
---|
634 | /** vpath pattern directories - KMKCCEVALVPATH. */
|
---|
635 | kKmkCcEvalInstr_vpath,
|
---|
636 | /** vpath pattern directories - KMKCCEVALVPATH. */
|
---|
637 | kKmkCcEvalInstr_vpath_clear_pattern,
|
---|
638 | /** vpath - KMKCCEVALCORE. */
|
---|
639 | kKmkCcEvalInstr_vpath_clear_all,
|
---|
640 |
|
---|
641 | /** Make 'code' needing expanding and evaluation - KMKCCEVALEXPAND.
|
---|
642 | * @note That this could in theory be used to start a recipe. This will be
|
---|
643 | * detected by the interpreter and loading will for now fail. A
|
---|
644 | * strategy for implement support for it would require picking up
|
---|
645 | * potential commands following the statements too. */
|
---|
646 | kKmkCcEvalInstr_expand,
|
---|
647 |
|
---|
648 | /** The end of valid instructions (exclusive). */
|
---|
649 | kKmkCcEvalInstr_End
|
---|
650 | } KMKCCEVALINSTR;
|
---|
651 |
|
---|
652 | /**
|
---|
653 | * Instruction core common to all instructions.
|
---|
654 | */
|
---|
655 | typedef struct kmk_cc_eval_core
|
---|
656 | {
|
---|
657 | /** The instruction opcode number (KMKCCEVALINSTR). */
|
---|
658 | KMKCCEVALINSTR enmOpcode;
|
---|
659 | /** The line number in the source this statement is associated with. */
|
---|
660 | unsigned iLine;
|
---|
661 | } KMKCCEVALCORE;
|
---|
662 | /** Pointer to an instruction core structure. */
|
---|
663 | typedef KMKCCEVALCORE *PKMKCCEVALCORE;
|
---|
664 |
|
---|
665 | /**
|
---|
666 | * Instruction format for kKmkCcEvalInstr_jump.
|
---|
667 | */
|
---|
668 | typedef struct kmk_cc_eval_jump
|
---|
669 | {
|
---|
670 | /** The core instruction. */
|
---|
671 | KMKCCEVALCORE Core;
|
---|
672 | /** Where to jump to (new instruction block or endif, typically). */
|
---|
673 | PKMKCCEVALCORE pNext;
|
---|
674 | } KMKCCEVALJUMP;
|
---|
675 | typedef KMKCCEVALJUMP *PKMKCCEVALJUMP;
|
---|
676 |
|
---|
677 | /**
|
---|
678 | * Instruction format for kKmkCcEvalInstr_assign_recursive,
|
---|
679 | * kKmkCcEvalInstr_assign_simple, kKmkCcEvalInstr_assign_append,
|
---|
680 | * kKmkCcEvalInstr_assign_prepend and kKmkCcEvalInstr_assign_if_new.
|
---|
681 | */
|
---|
682 | typedef struct kmk_cc_eval_assign
|
---|
683 | {
|
---|
684 | /** The core instruction. */
|
---|
685 | KMKCCEVALCORE Core;
|
---|
686 | /** Whether the 'export' qualifier was used. */
|
---|
687 | uint8_t fExport;
|
---|
688 | /** Whether the 'override' qualifier was used. */
|
---|
689 | uint8_t fOverride;
|
---|
690 | /** Whether the 'local' qualifier was used. */
|
---|
691 | uint8_t fLocal;
|
---|
692 | /** Whether the 'private' qualifier was used. */
|
---|
693 | uint8_t fPrivate;
|
---|
694 | /** The variable name.
|
---|
695 | * @remarks Plain text names are in variable_strcache. */
|
---|
696 | KMKCCEXPSUBPROGORPLAIN Variable;
|
---|
697 | /** The value or value expression. */
|
---|
698 | KMKCCEXPSUBPROGORPLAIN Value;
|
---|
699 | /** Pointer to the next instruction. */
|
---|
700 | PKMKCCEVALCORE pNext;
|
---|
701 | } KMKCCEVALASSIGN;
|
---|
702 | typedef KMKCCEVALASSIGN *PKMKCCEVALASSIGN;
|
---|
703 |
|
---|
704 | /**
|
---|
705 | * Instruction format for kKmkCcEvalInstr_define_recursive and
|
---|
706 | * kKmkCcEvalInstr_define_if_new.
|
---|
707 | */
|
---|
708 | typedef struct kmk_cc_eval_assign_define
|
---|
709 | {
|
---|
710 | /** The assignment core structure. */
|
---|
711 | KMKCCEVALASSIGN AssignCore;
|
---|
712 | /** Makefile evaluation program compiled from the define.
|
---|
713 | * NULL if it does not compile.
|
---|
714 | * @todo Let's see if this is actually doable... */
|
---|
715 | PKMKCCEVALPROG pEvalProg;
|
---|
716 | } KMKCCEVALASSIGNDEF;
|
---|
717 | typedef KMKCCEVALASSIGNDEF *PKMKCCEVALASSIGNDEF;
|
---|
718 |
|
---|
719 | /**
|
---|
720 | * Instruction format for kKmkCcEvalInstr_export, kKmkCcEvalInstr_unexport and
|
---|
721 | * kKmkCcEvalInstr_undefine.
|
---|
722 | */
|
---|
723 | typedef struct kmk_cc_eval_variables
|
---|
724 | {
|
---|
725 | /** The core instruction. */
|
---|
726 | KMKCCEVALCORE Core;
|
---|
727 | /** The number of variables named in aVars. */
|
---|
728 | uint32_t cVars;
|
---|
729 | /** Whether the 'local' qualifier was used (undefine only). */
|
---|
730 | uint8_t fLocal;
|
---|
731 | /** Pointer to the next instruction. */
|
---|
732 | PKMKCCEVALCORE pNext;
|
---|
733 | /** The variable names.
|
---|
734 | * Expressions will be expanded and split on space.
|
---|
735 | * @remarks Plain text names are in variable_strcache. */
|
---|
736 | KMKCCEXPSUBPROGORPLAIN aVars[1];
|
---|
737 | } KMKCCEVALVARIABLES;
|
---|
738 | typedef KMKCCEVALVARIABLES *PKMKCCEVALVARIABLES;
|
---|
739 | /** Calculates the size of an KMKCCEVALVARIABLES structure for @a a_cVars. */
|
---|
740 | #define KMKCCEVALVARIABLES_SIZE(a_cVars) KMK_CC_SIZEOF_VAR_STRUCT(KMKCCEVALVARIABLES, aVars, a_cVars)
|
---|
741 |
|
---|
742 | /**
|
---|
743 | * Core structure for all conditionals (kKmkCcEvalInstr_if*).
|
---|
744 | */
|
---|
745 | typedef struct kmk_cc_eval_if_core
|
---|
746 | {
|
---|
747 | /** The core instruction. */
|
---|
748 | KMKCCEVALCORE Core;
|
---|
749 | /** Condition true: Pointer to the next instruction. */
|
---|
750 | PKMKCCEVALCORE pNextTrue;
|
---|
751 | /** Condition false: Pointer to the next instruction (i.e. 'else if*'
|
---|
752 | * or whatever follows 'else' / 'endif'. */
|
---|
753 | PKMKCCEVALCORE pNextFalse;
|
---|
754 | /** Pointer to the previous conditional for 'else if*' directives.
|
---|
755 | * This is only to assist the compilation process. */
|
---|
756 | struct kmk_cc_eval_if_core *pPrevCond;
|
---|
757 | /** Pointer to the jump out of the true block, if followed by 'else'.
|
---|
758 | * This is only to assist the compilation process. */
|
---|
759 | PKMKCCEVALJUMP pTrueEndJump;
|
---|
760 | } KMKCCEVALIFCORE;
|
---|
761 | typedef KMKCCEVALIFCORE *PKMKCCEVALIFCORE;
|
---|
762 |
|
---|
763 | /**
|
---|
764 | * Instruction format for kKmkCcEvalInstr_ifdef_plain and
|
---|
765 | * kKmkCcEvalInstr_ifndef_plain.
|
---|
766 | * The variable name is known at compilation time.
|
---|
767 | */
|
---|
768 | typedef struct kmk_cc_eval_ifdef_plain
|
---|
769 | {
|
---|
770 | /** The 'if' core structure. */
|
---|
771 | KMKCCEVALIFCORE IfCore;
|
---|
772 | /** The name of the variable (points into variable_strcache). */
|
---|
773 | const char *pszName;
|
---|
774 | } KMKCCEVALIFDEFPLAIN;
|
---|
775 | typedef KMKCCEVALIFDEFPLAIN *PKMKCCEVALIFDEFPLAIN;
|
---|
776 |
|
---|
777 | /**
|
---|
778 | * Instruction format for kKmkCcEvalInstr_ifdef_dynamic and
|
---|
779 | * kKmkCcEvalInstr_ifndef_dynamic.
|
---|
780 | * The variable name is dynamically expanded at run time.
|
---|
781 | */
|
---|
782 | typedef struct kmk_cc_eval_ifdef_dynamic
|
---|
783 | {
|
---|
784 | /** The 'if' core structure. */
|
---|
785 | KMKCCEVALIFCORE IfCore;
|
---|
786 | /** Alignment padding, MBZ. */
|
---|
787 | KU32 uPadding;
|
---|
788 | /** The subprogram that will give us the variable name. */
|
---|
789 | KMKCCEXPSUBPROG NameSubprog;
|
---|
790 | } KMKCCEVALIFDEFDYNAMIC;
|
---|
791 | typedef KMKCCEVALIFDEFDYNAMIC *PKMKCCEVALIFDEFDYNAMIC;
|
---|
792 |
|
---|
793 | /**
|
---|
794 | * Instruction format for kKmkCcEvalInstr_ifeq and kKmkCcEvalInstr_ifneq.
|
---|
795 | */
|
---|
796 | typedef struct kmk_cc_eval_ifeq
|
---|
797 | {
|
---|
798 | /** The 'if' core structure. */
|
---|
799 | KMKCCEVALIFCORE IfCore;
|
---|
800 | /** The left hand side string expression (dynamic or plain). */
|
---|
801 | KMKCCEXPSUBPROGORPLAIN Left;
|
---|
802 | /** The rigth hand side string expression (dynamic or plain). */
|
---|
803 | KMKCCEXPSUBPROGORPLAIN Right;
|
---|
804 | } KMKCCEVALIFEQ;
|
---|
805 | typedef KMKCCEVALIFEQ *PKMKCCEVALIFEQ;
|
---|
806 |
|
---|
807 | /**
|
---|
808 | * Instruction format for kKmkCcEvalInstr_if1of and kKmkCcEvalInstr_ifn1of.
|
---|
809 | *
|
---|
810 | * @todo This can be optimized further by pre-hashing plain text items. One of
|
---|
811 | * the sides are usually plain text.
|
---|
812 | */
|
---|
813 | typedef struct kmk_cc_eval_if1of
|
---|
814 | {
|
---|
815 | /** The 'if' core structure. */
|
---|
816 | KMKCCEVALIFCORE IfCore;
|
---|
817 | /** The left hand side string expression (dynamic or plain). */
|
---|
818 | KMKCCEXPSUBPROGORPLAIN Left;
|
---|
819 | /** The rigth hand side string expression (dynamic or plain). */
|
---|
820 | KMKCCEXPSUBPROGORPLAIN Right;
|
---|
821 | } KMKCCEVALIF1OF;
|
---|
822 | typedef KMKCCEVALIF1OF *PKMKCCEVALIF1OF;
|
---|
823 |
|
---|
824 | /**
|
---|
825 | * Instruction format for kKmkCcEvalInstr_if.
|
---|
826 | *
|
---|
827 | * @todo Parse and compile the expression. At least strip whitespace in it.
|
---|
828 | */
|
---|
829 | typedef struct kmk_cc_eval_if_expr
|
---|
830 | {
|
---|
831 | /** The 'if' core structure. */
|
---|
832 | KMKCCEVALIFCORE IfCore;
|
---|
833 | /** The expression string length. */
|
---|
834 | uint16_t cchExpr;
|
---|
835 | /** The expression string. */
|
---|
836 | char szExpr[1];
|
---|
837 | } KMKCCEVALIFEXPR;
|
---|
838 | typedef KMKCCEVALIFEXPR *PKMKCCEVALIFEXPR;
|
---|
839 | /** Calculates the size of an KMKCCEVALIFEXPR structure for @a a_cchExpr long
|
---|
840 | * expression string (terminator is automatically added). */
|
---|
841 | #define KMKCCEVALIFEXPR_SIZE(a_cchExpr) KMK_CC_BLOCK_ALIGN_SIZE(KMK_CC_SIZEOF_VAR_STRUCT(KMKCCEVALIFEXPR, szExpr, (a_cchExpr) + 1))
|
---|
842 |
|
---|
843 | /**
|
---|
844 | * Instruction format for kKmkCcEvalInstr_include,
|
---|
845 | * kKmkCcEvalInstr_include_silent, kKmkCcEvalInstr_includedep,
|
---|
846 | * kKmkCcEvalInstr_includedep_queue, kKmkCcEvalInstr_includedep_flush.
|
---|
847 | */
|
---|
848 | typedef struct kmk_cc_eval_include
|
---|
849 | {
|
---|
850 | /** The core instruction. */
|
---|
851 | KMKCCEVALCORE Core;
|
---|
852 | /** The number of files. */
|
---|
853 | uint32_t cFiles;
|
---|
854 | /** Pointer to the next instruction (subprogs and strings after this one). */
|
---|
855 | PKMKCCEVALCORE pNext;
|
---|
856 | /** The files to be included.
|
---|
857 | * Expressions will be expanded and split on space.
|
---|
858 | * @todo Plain text file name could be replaced by file string cache entries. */
|
---|
859 | KMKCCEXPSUBPROGORPLAIN aFiles[1];
|
---|
860 | } KMKCCEVALINCLUDE;
|
---|
861 | typedef KMKCCEVALINCLUDE *PKMKCCEVALINCLUDE;
|
---|
862 | /** Calculates the size of an KMKCCEVALINCLUDE structure for @a a_cFiles files. */
|
---|
863 | #define KMKCCEVALINCLUDE_SIZE(a_cFiles) KMK_CC_SIZEOF_VAR_STRUCT(KMKCCEVALINCLUDE, aFiles, a_cFiles)
|
---|
864 |
|
---|
865 | /**
|
---|
866 | * Instruction format for kKmkCcEvalInstr_recipe_no_commands,
|
---|
867 | * kKmkCcEvalInstr_recipe_start_normal,
|
---|
868 | * kKmkCcEvalInstr_recipe_start_double_colon, kKmkCcEvalInstr_includedep_queue,
|
---|
869 | * kKmkCcEvalInstr_recipe_start_pattern.
|
---|
870 | */
|
---|
871 | typedef struct kmk_cc_eval_recipe
|
---|
872 | {
|
---|
873 | /** The core instruction. */
|
---|
874 | KMKCCEVALCORE Core;
|
---|
875 | /** The total number of files and dependencies in aFilesAndDeps. */
|
---|
876 | uint16_t cFilesAndDeps;
|
---|
877 |
|
---|
878 | /** Number of targets (from index 0).
|
---|
879 | * This is always 1 if this is an explicit multitarget or pattern recipe,
|
---|
880 | * indicating the main target. */
|
---|
881 | uint16_t cTargets;
|
---|
882 | /** Explicit multitarget & patterns: First always made target. */
|
---|
883 | uint16_t iFirstAlwaysMadeTargets;
|
---|
884 | /** Explicit multitarget & patterns: Number of always targets. */
|
---|
885 | uint16_t cAlwaysMadeTargets;
|
---|
886 | /** Explicit multitarget: First maybe made target. */
|
---|
887 | uint16_t iFirstMaybeTarget;
|
---|
888 | /** Explicit multitarget: Number of maybe made targets. */
|
---|
889 | uint16_t cMaybeTargets;
|
---|
890 |
|
---|
891 | /** First dependency. */
|
---|
892 | uint16_t iFirstDep;
|
---|
893 | /** Number of ordinary dependencies. */
|
---|
894 | uint16_t cDeps;
|
---|
895 | /** First order only dependency. */
|
---|
896 | uint16_t iFirstOrderOnlyDep;
|
---|
897 | /** Number of ordinary dependencies. */
|
---|
898 | uint16_t cOrderOnlyDeps;
|
---|
899 |
|
---|
900 | /** Pointer to the next instruction (subprogs and strings after this one). */
|
---|
901 | PKMKCCEVALCORE pNext;
|
---|
902 | /** The .MUST_MAKE variable value, if present.
|
---|
903 | * If not present, this is a zero length plain string. */
|
---|
904 | KMKCCEXPSUBPROGORPLAIN MustMake;
|
---|
905 | /** The target files and dependencies.
|
---|
906 | * This is sorted into several sections, as defined by the above indexes and
|
---|
907 | * counts. Expressions will be expanded and split on space.
|
---|
908 | *
|
---|
909 | * The KMKCCEXPSUBPROGORPLAIN::bUser member one of KMKCCEVALRECIPE_FD_XXX.
|
---|
910 | *
|
---|
911 | * @todo Plain text file name could be replaced by file string cache entries. */
|
---|
912 | KMKCCEXPSUBPROGORPLAIN aFilesAndDeps[1];
|
---|
913 | } KMKCCEVALRECIPE;
|
---|
914 | typedef KMKCCEVALRECIPE *PKMKCCEVALRECIPE;
|
---|
915 | /** Calculates the size of an KMKCCEVALRECIPE structure for @a a_cFiles
|
---|
916 | * files. */
|
---|
917 | #define KMKCCEVALRECIPE_SIZE(a_cFilesAndDeps) KMK_CC_SIZEOF_VAR_STRUCT(KMKCCEVALRECIPE, aFilesAndDeps, a_cFilesAndDeps)
|
---|
918 | /** @name KMKCCEVALRECIPE_FD_XXX - Values for KMKCCEVALRECIPE::aFilesAndDeps[x].bUser
|
---|
919 | * @{ */
|
---|
920 | #define KMKCCEVALRECIPE_FD_NORMAL 0
|
---|
921 | #define KMKCCEVALRECIPE_FD_SEC_EXP 1
|
---|
922 | #define KMKCCEVALRECIPE_FD_SPECIAL_POSIX 2
|
---|
923 | #define KMKCCEVALRECIPE_FD_SPECIAL_SECONDEXPANSION 3
|
---|
924 | #define KMKCCEVALRECIPE_FD_SPECIAL_ONESHELL 4
|
---|
925 | /** @} */
|
---|
926 |
|
---|
927 |
|
---|
928 | /**
|
---|
929 | * Instruction format for kKmkCcEvalInstr_recipe_commands.
|
---|
930 | */
|
---|
931 | typedef struct kmk_cc_eval_recipe_commands
|
---|
932 | {
|
---|
933 | /** The core instruction. */
|
---|
934 | KMKCCEVALCORE Core;
|
---|
935 | /** The number of commands. */
|
---|
936 | uint32_t cCommands;
|
---|
937 | /** Pointer to the next instruction (subprogs and strings after this one). */
|
---|
938 | PKMKCCEVALCORE pNext;
|
---|
939 | /** Commands to add to the current recipe.
|
---|
940 | * Expressions will be expanded and split on newline? */
|
---|
941 | KMKCCEXPSUBPROGORPLAIN aCommands[1];
|
---|
942 | } KMKCCEVALRECIPECOMMANDS;
|
---|
943 | typedef KMKCCEVALRECIPECOMMANDS *PKMKCCEVALRECIPECOMMANDS;
|
---|
944 | /** Calculates the size of an KMKCCEVALRECIPECOMMANDS structure for
|
---|
945 | * @a a_cCommands commands. */
|
---|
946 | #define KMKCCEVALRECIPECOMMANDS_SIZE(a_cCommands) KMK_CC_SIZEOF_VAR_STRUCT(KMKCCEVALRECIPECOMMANDS, aCommands, a_cCommands)
|
---|
947 |
|
---|
948 | /**
|
---|
949 | * Instruction format for kKmkCcEvalInstr_vpath and
|
---|
950 | * kKmkCcEvalInstr_vpath_clear_pattern.
|
---|
951 | */
|
---|
952 | typedef struct kmk_cc_eval_vpath
|
---|
953 | {
|
---|
954 | /** The core instruction. */
|
---|
955 | KMKCCEVALCORE Core;
|
---|
956 | /** The number of search directories.
|
---|
957 | * This will be zero for kKmkCcEvalInstr_vpath_clear_pattern. */
|
---|
958 | uint32_t cDirs;
|
---|
959 | /** Pointer to the next instruction (subprogs and strings after this one). */
|
---|
960 | PKMKCCEVALCORE pNext;
|
---|
961 | /** The pattern. */
|
---|
962 | KMKCCEXPSUBPROGORPLAIN Pattern;
|
---|
963 | /** The directory. Expressions will be expanded and split on space. */
|
---|
964 | KMKCCEXPSUBPROGORPLAIN aDirs[1];
|
---|
965 | } KMKCCEVALVPATH;
|
---|
966 | typedef KMKCCEVALVPATH *PKMKCCEVALVPATH;
|
---|
967 | /** Calculates the size of an KMKCCEVALVPATH structure for @a a_cFiles files. */
|
---|
968 | #define KMKCCEVALVPATH_SIZE(a_cFiles) KMK_CC_SIZEOF_VAR_STRUCT(KMKCCEVALVPATH, aDirs, a_cDirs)
|
---|
969 |
|
---|
970 |
|
---|
971 | /**
|
---|
972 | * Instruction format for kKmkCcEvalInstr_expand.
|
---|
973 | */
|
---|
974 | typedef struct kmk_cc_eval_expand
|
---|
975 | {
|
---|
976 | /** The core instruction. */
|
---|
977 | KMKCCEVALCORE Core;
|
---|
978 | /** Alignment padding, MBZ. */
|
---|
979 | KU32 uPadding;
|
---|
980 | /** The expansion subprogram that to execute and evaluate the output of. */
|
---|
981 | KMKCCEXPSUBPROG Subprog;
|
---|
982 | } KMKCCEVALEXPAND;
|
---|
983 | typedef KMKCCEVALEXPAND *PKMKCCEVALEXPAND;
|
---|
984 |
|
---|
985 |
|
---|
986 | /**
|
---|
987 | * Makefile evaluation program.
|
---|
988 | */
|
---|
989 | typedef struct kmk_cc_evalprog
|
---|
990 | {
|
---|
991 | /** Pointer to the first instruction for this program. */
|
---|
992 | PKMKCCEVALCORE pFirstInstr;
|
---|
993 | /** List of blocks for this program (LIFO). */
|
---|
994 | PKMKCCBLOCK pBlockTail;
|
---|
995 | /** The name of the file containing this program. */
|
---|
996 | const char *pszFilename;
|
---|
997 | /** The name of the variable containing this program, if applicable. */
|
---|
998 | const char *pszVarName;
|
---|
999 | #ifdef KMK_CC_STRICT
|
---|
1000 | /** The hash of the input string. Used to check that we get all the change
|
---|
1001 | * notifications we require. */
|
---|
1002 | uint32_t uInputHash;
|
---|
1003 | #endif
|
---|
1004 | /** Reference count. */
|
---|
1005 | uint32_t volatile cRefs;
|
---|
1006 | } KMKCCEVALPROG;
|
---|
1007 | typedef KMKCCEVALPROG *PKMKCCEVALPROG;
|
---|
1008 |
|
---|
1009 | /** @} */
|
---|
1010 |
|
---|
1011 |
|
---|
1012 | /*********************************************************************************************************************************
|
---|
1013 | * Global Variables *
|
---|
1014 | *********************************************************************************************************************************/
|
---|
1015 | static uint32_t g_cVarForExpandCompilations = 0;
|
---|
1016 | static uint32_t g_cVarForExpandExecs = 0;
|
---|
1017 | static uint32_t g_cVarForEvalCompilations = 0;
|
---|
1018 | static uint32_t g_cVarForEvalExecs = 0;
|
---|
1019 | static uint32_t g_cFileForEvalCompilations = 0;
|
---|
1020 | static uint32_t g_cFileForEvalExecs = 0;
|
---|
1021 | #ifdef KMK_CC_WITH_STATS
|
---|
1022 | static uint32_t g_cBlockAllocated = 0;
|
---|
1023 | static uint32_t g_cbAllocated = 0;
|
---|
1024 |
|
---|
1025 | static uint32_t g_cBlocksAllocatedExpProgs = 0;
|
---|
1026 | static uint32_t g_cbAllocatedExpProgs = 0;
|
---|
1027 | static uint32_t g_cSingleBlockExpProgs = 0;
|
---|
1028 | static uint32_t g_cTwoBlockExpProgs = 0;
|
---|
1029 | static uint32_t g_cMultiBlockExpProgs = 0;
|
---|
1030 | static uint32_t g_cbUnusedMemExpProgs = 0;
|
---|
1031 |
|
---|
1032 | static uint32_t g_cBlocksAllocatedEvalProgs = 0;
|
---|
1033 | static uint32_t g_cbAllocatedEvalProgs = 0;
|
---|
1034 | static uint32_t g_cSingleBlockEvalProgs = 0;
|
---|
1035 | static uint32_t g_cTwoBlockEvalProgs = 0;
|
---|
1036 | static uint32_t g_cMultiBlockEvalProgs = 0;
|
---|
1037 | static uint32_t g_cbUnusedMemEvalProgs = 0;
|
---|
1038 |
|
---|
1039 | #endif
|
---|
1040 |
|
---|
1041 | /** Generic character classification, taking an 'unsigned char' index.
|
---|
1042 | * ASSUMES unsigned char is 8-bits. */
|
---|
1043 | static uint16_t g_abEvalCcChars[256];
|
---|
1044 |
|
---|
1045 |
|
---|
1046 | /**
|
---|
1047 | * Makefile evaluation keywords.
|
---|
1048 | */
|
---|
1049 | static const char * const g_apszEvalKeywords[] =
|
---|
1050 | {
|
---|
1051 | "define",
|
---|
1052 | "export",
|
---|
1053 | "else",
|
---|
1054 | "endef",
|
---|
1055 | "endif",
|
---|
1056 | "ifdef",
|
---|
1057 | "ifndef",
|
---|
1058 | "ifeq",
|
---|
1059 | "ifneq",
|
---|
1060 | "if1of",
|
---|
1061 | "ifn1of",
|
---|
1062 | "if",
|
---|
1063 | "include",
|
---|
1064 | "includedep",
|
---|
1065 | "includedep-queue",
|
---|
1066 | "includedep-flush",
|
---|
1067 | "local",
|
---|
1068 | "override",
|
---|
1069 | "private",
|
---|
1070 | "sinclude",
|
---|
1071 | "unexport",
|
---|
1072 | "undefine",
|
---|
1073 | "vpath",
|
---|
1074 | "-include",
|
---|
1075 | };
|
---|
1076 |
|
---|
1077 |
|
---|
1078 | /** This is parallel to KMKCCEVALINSTR. */
|
---|
1079 | static const char * const g_apszEvalInstrNms[] =
|
---|
1080 | {
|
---|
1081 | "jump",
|
---|
1082 | "assign_recursive",
|
---|
1083 | "assign_simple",
|
---|
1084 | "assign_append",
|
---|
1085 | "assign_prepend",
|
---|
1086 | "assign_if_new",
|
---|
1087 | "define_recursive",
|
---|
1088 | "define_if_new",
|
---|
1089 | "export",
|
---|
1090 | "unexport",
|
---|
1091 | "export_all",
|
---|
1092 | "unexport_all",
|
---|
1093 | "undefine",
|
---|
1094 | "ifdef_plain",
|
---|
1095 | "ifndef_plain",
|
---|
1096 | "ifdef_dynamic",
|
---|
1097 | "ifndef_dynamic",
|
---|
1098 | "ifeq",
|
---|
1099 | "ifneq",
|
---|
1100 | "if1of",
|
---|
1101 | "ifn1of",
|
---|
1102 | "if",
|
---|
1103 | "include",
|
---|
1104 | "include_silent",
|
---|
1105 | "includedep",
|
---|
1106 | "includedep_queue",
|
---|
1107 | "includedep_flush",
|
---|
1108 | "recipe_no_commands",
|
---|
1109 | "recipe_start_normal",
|
---|
1110 | "recipe_start_double_colon",
|
---|
1111 | "recipe_start_pattern",
|
---|
1112 | "recipe_commands",
|
---|
1113 | "recipe_end",
|
---|
1114 | "recipe_cancel_pattern",
|
---|
1115 | "vpath",
|
---|
1116 | "vpath_clear_pattern",
|
---|
1117 | "vpath_clear_all",
|
---|
1118 | };
|
---|
1119 |
|
---|
1120 | /*********************************************************************************************************************************
|
---|
1121 | * Internal Functions *
|
---|
1122 | *********************************************************************************************************************************/
|
---|
1123 | static int kmk_cc_exp_compile_subprog(PKMKCCBLOCK *ppBlockTail, const char *pchStr, uint32_t cchStr, PKMKCCEXPSUBPROG pSubprog);
|
---|
1124 | static char *kmk_exec_expand_subprog_to_tmp(PKMKCCEXPSUBPROG pSubprog, uint32_t *pcch);
|
---|
1125 |
|
---|
1126 |
|
---|
1127 | /**
|
---|
1128 | * Initializes global variables for the 'compiler'.
|
---|
1129 | */
|
---|
1130 | void kmk_cc_init(void)
|
---|
1131 | {
|
---|
1132 | unsigned i;
|
---|
1133 |
|
---|
1134 | /*
|
---|
1135 | * Initialize the bitmap.
|
---|
1136 | */
|
---|
1137 | memset(g_abEvalCcChars, 0, sizeof(g_abEvalCcChars));
|
---|
1138 |
|
---|
1139 | /* blank chars */
|
---|
1140 | KMK_CC_EVAL_BM_OR(g_abEvalCcChars, ' ', KMK_CC_EVAL_CH_BLANK);
|
---|
1141 | KMK_CC_EVAL_BM_OR(g_abEvalCcChars, '\t', KMK_CC_EVAL_CH_BLANK);
|
---|
1142 |
|
---|
1143 | /* space chars and zero terminator. */
|
---|
1144 | #define MY_SPACE_BITS KMK_CC_EVAL_CH_SPACE | KMK_CC_EVAL_CH_SPACE_OR_BACKSLASH | KMK_CC_EVAL_CH_SPACE_VAR_OR_RECIPE
|
---|
1145 | KMK_CC_EVAL_BM_OR(g_abEvalCcChars, ' ', MY_SPACE_BITS);
|
---|
1146 | KMK_CC_EVAL_BM_OR(g_abEvalCcChars, '\t', MY_SPACE_BITS);
|
---|
1147 | KMK_CC_EVAL_BM_OR(g_abEvalCcChars, '\n', MY_SPACE_BITS | KMK_CC_EVAL_CH_EOL_CANDIDATE);
|
---|
1148 | KMK_CC_EVAL_BM_OR(g_abEvalCcChars, '\v', MY_SPACE_BITS);
|
---|
1149 | KMK_CC_EVAL_BM_OR(g_abEvalCcChars, '\f', MY_SPACE_BITS);
|
---|
1150 | KMK_CC_EVAL_BM_OR(g_abEvalCcChars, '\r', MY_SPACE_BITS | KMK_CC_EVAL_CH_EOL_CANDIDATE);
|
---|
1151 | KMK_CC_EVAL_BM_OR(g_abEvalCcChars, '\\', KMK_CC_EVAL_CH_SPACE_OR_BACKSLASH | KMK_CC_EVAL_CH_SPACE_VAR_OR_RECIPE);
|
---|
1152 | #undef MY_SPACE_BITS
|
---|
1153 |
|
---|
1154 | /* keywords */
|
---|
1155 | for (i = 0; i < K_ELEMENTS(g_apszEvalKeywords); i++)
|
---|
1156 | {
|
---|
1157 | #ifdef KMK_CC_STRICT
|
---|
1158 | size_t cch = strlen(g_apszEvalKeywords[i]);
|
---|
1159 | KMK_CC_ASSERT(cch >= KMK_CC_EVAL_KEYWORD_MIN);
|
---|
1160 | KMK_CC_ASSERT(cch <= KMK_CC_EVAL_KEYWORD_MAX);
|
---|
1161 | #endif
|
---|
1162 |
|
---|
1163 | KMK_CC_EVAL_BM_OR(g_abEvalCcChars, g_apszEvalKeywords[i][0], KMK_CC_EVAL_CH_1ST_IN_KEYWORD);
|
---|
1164 | KMK_CC_EVAL_BM_OR(g_abEvalCcChars, g_apszEvalKeywords[i][1], KMK_CC_EVAL_CH_2ND_IN_KEYWORD);
|
---|
1165 | }
|
---|
1166 | KMK_CC_EVAL_BM_OR(g_abEvalCcChars, 'd', KMK_CC_EVAL_CH_1ST_IN_VARIABLE_KEYWORD); /* define */
|
---|
1167 | KMK_CC_EVAL_BM_OR(g_abEvalCcChars, 'e', KMK_CC_EVAL_CH_1ST_IN_VARIABLE_KEYWORD); /* export, endef */
|
---|
1168 | KMK_CC_EVAL_BM_OR(g_abEvalCcChars, 'l', KMK_CC_EVAL_CH_1ST_IN_VARIABLE_KEYWORD); /* local */
|
---|
1169 | KMK_CC_EVAL_BM_OR(g_abEvalCcChars, 'o', KMK_CC_EVAL_CH_1ST_IN_VARIABLE_KEYWORD); /* override */
|
---|
1170 | KMK_CC_EVAL_BM_OR(g_abEvalCcChars, 'p', KMK_CC_EVAL_CH_1ST_IN_VARIABLE_KEYWORD); /* private */
|
---|
1171 | KMK_CC_EVAL_BM_OR(g_abEvalCcChars, 'u', KMK_CC_EVAL_CH_1ST_IN_VARIABLE_KEYWORD); /* undefine, unexport */
|
---|
1172 |
|
---|
1173 | /* Assignment punctuation and recipe stuff. */
|
---|
1174 | KMK_CC_EVAL_BM_OR(g_abEvalCcChars, '=', KMK_CC_EVAL_CH_SPACE_VAR_OR_RECIPE);
|
---|
1175 | KMK_CC_EVAL_BM_OR(g_abEvalCcChars, ':', KMK_CC_EVAL_CH_SPACE_VAR_OR_RECIPE);
|
---|
1176 |
|
---|
1177 | /* For locating the end of variable expansion. */
|
---|
1178 | KMK_CC_EVAL_BM_OR(g_abEvalCcChars, '(', KMK_CC_EVAL_CH_PAREN_OR_SLASH);
|
---|
1179 | KMK_CC_EVAL_BM_OR(g_abEvalCcChars, ')', KMK_CC_EVAL_CH_PAREN_OR_SLASH);
|
---|
1180 | KMK_CC_EVAL_BM_OR(g_abEvalCcChars, '{', KMK_CC_EVAL_CH_PAREN_OR_SLASH);
|
---|
1181 | KMK_CC_EVAL_BM_OR(g_abEvalCcChars, '}', KMK_CC_EVAL_CH_PAREN_OR_SLASH);
|
---|
1182 | KMK_CC_EVAL_BM_OR(g_abEvalCcChars, '\\', KMK_CC_EVAL_CH_PAREN_OR_SLASH);
|
---|
1183 |
|
---|
1184 | /* For parsing ifeq and if1of expressions. (GNU weirdly does not respect {} style function references.) */
|
---|
1185 | KMK_CC_EVAL_BM_OR(g_abEvalCcChars, '(', KMK_CC_EVAL_CH_PAREN_COMMA_OR_DOLLAR);
|
---|
1186 | KMK_CC_EVAL_BM_OR(g_abEvalCcChars, ')', KMK_CC_EVAL_CH_PAREN_COMMA_OR_DOLLAR);
|
---|
1187 | KMK_CC_EVAL_BM_OR(g_abEvalCcChars, ',', KMK_CC_EVAL_CH_PAREN_COMMA_OR_DOLLAR);
|
---|
1188 | KMK_CC_EVAL_BM_OR(g_abEvalCcChars, '$', KMK_CC_EVAL_CH_PAREN_COMMA_OR_DOLLAR);
|
---|
1189 |
|
---|
1190 | /* Misc. */
|
---|
1191 | KMK_CC_EVAL_BM_OR(g_abEvalCcChars, '$', KMK_CC_EVAL_CH_DOLLAR);
|
---|
1192 | KMK_CC_EVAL_BM_OR(g_abEvalCcChars, '\\', KMK_CC_EVAL_CH_BACKSLASH);
|
---|
1193 |
|
---|
1194 | /*
|
---|
1195 | * Check that the eval instruction names match up.
|
---|
1196 | */
|
---|
1197 | KMK_CC_ASSERT(strcmp(g_apszEvalInstrNms[kKmkCcEvalInstr_ifneq], "ifneq") == 0);
|
---|
1198 | KMK_CC_ASSERT(strcmp(g_apszEvalInstrNms[kKmkCcEvalInstr_vpath_clear_all], "vpath_clear_all") == 0);
|
---|
1199 | }
|
---|
1200 |
|
---|
1201 |
|
---|
1202 | /**
|
---|
1203 | * Prints stats (for kmk -p).
|
---|
1204 | */
|
---|
1205 | void kmk_cc_print_stats(void)
|
---|
1206 | {
|
---|
1207 | #ifdef KMK_CC_WITH_STATS
|
---|
1208 | uint32_t const cEvalCompilations = g_cFileForEvalCompilations + g_cVarForEvalCompilations;
|
---|
1209 | #endif
|
---|
1210 |
|
---|
1211 | puts(_("\n# The kmk 'compiler' and kmk 'program executor':\n"));
|
---|
1212 |
|
---|
1213 | printf(_("# Variables compiled for string expansion: %6u\n"), g_cVarForExpandCompilations);
|
---|
1214 | printf(_("# Variables string expansion runs: %6u\n"), g_cVarForExpandExecs);
|
---|
1215 | printf(_("# String expansion runs per compile: %6u\n"), g_cVarForExpandExecs / g_cVarForExpandCompilations);
|
---|
1216 | #ifdef KMK_CC_WITH_STATS
|
---|
1217 | printf(_("# Single alloc block exp progs: %6u (%u%%)\n"
|
---|
1218 | "# Two alloc block exp progs: %6u (%u%%)\n"
|
---|
1219 | "# Three or more alloc block exp progs: %6u (%u%%)\n"
|
---|
1220 | ),
|
---|
1221 | g_cSingleBlockExpProgs, (uint32_t)((uint64_t)g_cSingleBlockExpProgs * 100 / g_cVarForExpandCompilations),
|
---|
1222 | g_cTwoBlockExpProgs, (uint32_t)((uint64_t)g_cTwoBlockExpProgs * 100 / g_cVarForExpandCompilations),
|
---|
1223 | g_cMultiBlockExpProgs, (uint32_t)((uint64_t)g_cMultiBlockExpProgs * 100 / g_cVarForExpandCompilations));
|
---|
1224 | printf(_("# Total amount of memory for exp progs: %8u bytes\n"
|
---|
1225 | "# in: %6u blocks\n"
|
---|
1226 | "# avg block size: %6u bytes\n"
|
---|
1227 | "# unused memory: %8u bytes (%u%%)\n"
|
---|
1228 | "# avg unused memory per block: %6u bytes\n"
|
---|
1229 | "\n"),
|
---|
1230 | g_cbAllocatedExpProgs, g_cBlocksAllocatedExpProgs, g_cbAllocatedExpProgs / g_cBlocksAllocatedExpProgs,
|
---|
1231 | g_cbUnusedMemExpProgs, (uint32_t)((uint64_t)g_cbUnusedMemExpProgs * 100 / g_cbAllocatedExpProgs),
|
---|
1232 | g_cbUnusedMemExpProgs / g_cBlocksAllocatedExpProgs);
|
---|
1233 | puts("");
|
---|
1234 | #endif
|
---|
1235 | printf(_("# Variables compiled for string eval: %6u\n"), g_cVarForEvalCompilations);
|
---|
1236 | printf(_("# Variables string eval runs: %6u\n"), g_cVarForEvalExecs);
|
---|
1237 | printf(_("# String evals runs per compile: %6u\n"), g_cVarForEvalExecs / g_cVarForEvalCompilations);
|
---|
1238 | printf(_("# Files compiled: %6u\n"), g_cFileForEvalCompilations);
|
---|
1239 | printf(_("# Files runs: %6u\n"), g_cFileForEvalExecs);
|
---|
1240 | printf(_("# Files eval runs per compile: %6u\n"), g_cFileForEvalExecs / g_cFileForEvalCompilations);
|
---|
1241 | #ifdef KMK_CC_WITH_STATS
|
---|
1242 | printf(_("# Single alloc block eval progs: %6u (%u%%)\n"
|
---|
1243 | "# Two alloc block eval progs: %6u (%u%%)\n"
|
---|
1244 | "# Three or more alloc block eval progs: %6u (%u%%)\n"
|
---|
1245 | ),
|
---|
1246 | g_cSingleBlockEvalProgs, (uint32_t)((uint64_t)g_cSingleBlockEvalProgs * 100 / cEvalCompilations),
|
---|
1247 | g_cTwoBlockEvalProgs, (uint32_t)((uint64_t)g_cTwoBlockEvalProgs * 100 / cEvalCompilations),
|
---|
1248 | g_cMultiBlockEvalProgs, (uint32_t)((uint64_t)g_cMultiBlockEvalProgs * 100 / cEvalCompilations));
|
---|
1249 | printf(_("# Total amount of memory for eval progs: %8u bytes\n"
|
---|
1250 | "# in: %6u blocks\n"
|
---|
1251 | "# avg block size: %6u bytes\n"
|
---|
1252 | "# unused memory: %8u bytes (%u%%)\n"
|
---|
1253 | "# avg unused memory per block: %6u bytes\n"
|
---|
1254 | "\n"),
|
---|
1255 | g_cbAllocatedEvalProgs, g_cBlocksAllocatedEvalProgs, g_cbAllocatedEvalProgs / g_cBlocksAllocatedEvalProgs,
|
---|
1256 | g_cbUnusedMemEvalProgs, (uint32_t)((uint64_t)g_cbUnusedMemEvalProgs * 100 / g_cbAllocatedEvalProgs),
|
---|
1257 | g_cbUnusedMemEvalProgs / g_cBlocksAllocatedEvalProgs);
|
---|
1258 | puts("");
|
---|
1259 | printf(_("# Total amount of block mem allocated: %8u bytes\n"), g_cbAllocated);
|
---|
1260 | printf(_("# Total number of block allocated: %8u\n"), g_cBlockAllocated);
|
---|
1261 | printf(_("# Average block size: %8u byte\n"), g_cbAllocated / g_cBlockAllocated);
|
---|
1262 | #endif
|
---|
1263 |
|
---|
1264 | puts("");
|
---|
1265 | }
|
---|
1266 |
|
---|
1267 |
|
---|
1268 | /*
|
---|
1269 | *
|
---|
1270 | * Various utility functions.
|
---|
1271 | * Various utility functions.
|
---|
1272 | * Various utility functions.
|
---|
1273 | *
|
---|
1274 | */
|
---|
1275 |
|
---|
1276 | /**
|
---|
1277 | * Counts the number of dollar chars in the string.
|
---|
1278 | *
|
---|
1279 | * @returns Number of dollar chars.
|
---|
1280 | * @param pchStr The string to search (does not need to be zero
|
---|
1281 | * terminated).
|
---|
1282 | * @param cchStr The length of the string.
|
---|
1283 | */
|
---|
1284 | static uint32_t kmk_cc_count_dollars(const char *pchStr, uint32_t cchStr)
|
---|
1285 | {
|
---|
1286 | uint32_t cDollars = 0;
|
---|
1287 | const char *pch;
|
---|
1288 | while ((pch = memchr(pchStr, '$', cchStr)) != NULL)
|
---|
1289 | {
|
---|
1290 | cDollars++;
|
---|
1291 | cchStr -= pch - pchStr + 1;
|
---|
1292 | pchStr = pch + 1;
|
---|
1293 | }
|
---|
1294 | return cDollars;
|
---|
1295 | }
|
---|
1296 |
|
---|
1297 | #ifdef KMK_CC_STRICT
|
---|
1298 | /**
|
---|
1299 | * Used to check that function arguments are left alone.
|
---|
1300 | * @returns Updated hash.
|
---|
1301 | * @param uHash The current hash value.
|
---|
1302 | * @param psz The string to hash.
|
---|
1303 | */
|
---|
1304 | static uint32_t kmk_cc_debug_string_hash(uint32_t uHash, const char *psz)
|
---|
1305 | {
|
---|
1306 | unsigned char ch;
|
---|
1307 | while ((ch = *(unsigned char const *)psz++) != '\0')
|
---|
1308 | uHash = (uHash << 6) + (uHash << 16) - uHash + (unsigned char)ch;
|
---|
1309 | return uHash;
|
---|
1310 | }
|
---|
1311 |
|
---|
1312 | /**
|
---|
1313 | * Used to check that function arguments are left alone.
|
---|
1314 | * @returns Updated hash.
|
---|
1315 | * @param uHash The current hash value.
|
---|
1316 | * @param pch The string to hash, not terminated.
|
---|
1317 | * @param cch The number of chars to hash.
|
---|
1318 | */
|
---|
1319 | static uint32_t kmk_cc_debug_string_hash_n(uint32_t uHash, const char *pch, uint32_t cch)
|
---|
1320 | {
|
---|
1321 | while (cch-- > 0)
|
---|
1322 | {
|
---|
1323 | unsigned char ch = *(unsigned char const *)pch++;
|
---|
1324 | uHash = (uHash << 6) + (uHash << 16) - uHash + (unsigned char)ch;
|
---|
1325 | }
|
---|
1326 | return uHash;
|
---|
1327 | }
|
---|
1328 |
|
---|
1329 | #endif
|
---|
1330 |
|
---|
1331 |
|
---|
1332 |
|
---|
1333 | /*
|
---|
1334 | *
|
---|
1335 | * The allocator.
|
---|
1336 | * The allocator.
|
---|
1337 | * The allocator.
|
---|
1338 | *
|
---|
1339 | */
|
---|
1340 |
|
---|
1341 |
|
---|
1342 | /**
|
---|
1343 | * For the first allocation using the block allocator.
|
---|
1344 | *
|
---|
1345 | * @returns Pointer to the first allocation (@a cbFirst in size).
|
---|
1346 | * @param ppBlockTail Where to return the pointer to the first block.
|
---|
1347 | * @param cbFirst The size of the first allocation.
|
---|
1348 | * @param cbHint Hint about how much memory we might be needing.
|
---|
1349 | */
|
---|
1350 | static void *kmk_cc_block_alloc_first(PKMKCCBLOCK *ppBlockTail, size_t cbFirst, size_t cbHint)
|
---|
1351 | {
|
---|
1352 | uint32_t cbBlock;
|
---|
1353 | PKMKCCBLOCK pNewBlock;
|
---|
1354 |
|
---|
1355 | KMK_CC_ASSERT_ALIGNED(cbFirst, sizeof(void *));
|
---|
1356 | KMK_CC_ASSERT(cbFirst <= 128);
|
---|
1357 |
|
---|
1358 | /*
|
---|
1359 | * Turn the hint into a block size.
|
---|
1360 | */
|
---|
1361 | cbHint += cbFirst;
|
---|
1362 | if (cbHint <= 512)
|
---|
1363 | {
|
---|
1364 | if (cbHint <= 256)
|
---|
1365 | {
|
---|
1366 | if (cbFirst <= 64)
|
---|
1367 | cbBlock = 128;
|
---|
1368 | else
|
---|
1369 | cbBlock = 256;
|
---|
1370 | }
|
---|
1371 | else
|
---|
1372 | cbBlock = 256;
|
---|
1373 | }
|
---|
1374 | else if (cbHint < 2048)
|
---|
1375 | cbBlock = 1024;
|
---|
1376 | else if (cbHint < 3072)
|
---|
1377 | cbBlock = 2048;
|
---|
1378 | else
|
---|
1379 | cbBlock = 4096;
|
---|
1380 |
|
---|
1381 | /*
|
---|
1382 | * Allocate and initialize the first block.
|
---|
1383 | */
|
---|
1384 | pNewBlock = (PKMKCCBLOCK)xmalloc(cbBlock);
|
---|
1385 | pNewBlock->cbBlock = cbBlock;
|
---|
1386 | pNewBlock->offNext = sizeof(*pNewBlock) + cbFirst;
|
---|
1387 | pNewBlock->pNext = NULL;
|
---|
1388 | *ppBlockTail = pNewBlock;
|
---|
1389 |
|
---|
1390 | #ifdef KMK_CC_WITH_STATS
|
---|
1391 | g_cBlockAllocated++;
|
---|
1392 | g_cbAllocated += cbBlock;
|
---|
1393 | #endif
|
---|
1394 |
|
---|
1395 | return pNewBlock + 1;
|
---|
1396 | }
|
---|
1397 |
|
---|
1398 |
|
---|
1399 | /**
|
---|
1400 | * Used for getting the address of the next instruction.
|
---|
1401 | *
|
---|
1402 | * @returns Pointer to the next allocation.
|
---|
1403 | * @param pBlockTail The allocator tail pointer.
|
---|
1404 | */
|
---|
1405 | static void *kmk_cc_block_get_next_ptr(PKMKCCBLOCK pBlockTail)
|
---|
1406 | {
|
---|
1407 | return (char *)pBlockTail + pBlockTail->offNext;
|
---|
1408 | }
|
---|
1409 |
|
---|
1410 |
|
---|
1411 | /**
|
---|
1412 | * Realigns the allocator after doing byte or string allocations.
|
---|
1413 | *
|
---|
1414 | * @param ppBlockTail Pointer to the allocator tail pointer.
|
---|
1415 | */
|
---|
1416 | static void kmk_cc_block_realign(PKMKCCBLOCK *ppBlockTail)
|
---|
1417 | {
|
---|
1418 | PKMKCCBLOCK pBlockTail = *ppBlockTail;
|
---|
1419 | uint32_t offNext = pBlockTail->offNext;
|
---|
1420 | if (offNext & (sizeof(void *) - 1U))
|
---|
1421 | {
|
---|
1422 | pBlockTail->offNext = KMK_CC_BLOCK_ALIGN_SIZE(offNext);
|
---|
1423 | KMK_CC_BLOCK_DPRINTF(("kmk_cc_block_realign: offNext=%#x -> %#x\n", offNext, pBlockTail->offNext));
|
---|
1424 | KMK_CC_ASSERT(pBlockTail->cbBlock - pBlockTail->offNext >= sizeof(KMKCCEXPJUMP));
|
---|
1425 | }
|
---|
1426 | }
|
---|
1427 |
|
---|
1428 |
|
---|
1429 | /**
|
---|
1430 | * Grows the allocation with another block, byte allocator case.
|
---|
1431 | *
|
---|
1432 | * @returns Pointer to the byte allocation.
|
---|
1433 | * @param ppBlockTail Pointer to the allocator tail pointer.
|
---|
1434 | * @param cb The number of bytes to allocate.
|
---|
1435 | */
|
---|
1436 | static void *kmk_cc_block_byte_alloc_grow(PKMKCCBLOCK *ppBlockTail, uint32_t cb)
|
---|
1437 | {
|
---|
1438 | PKMKCCBLOCK pOldBlock = *ppBlockTail;
|
---|
1439 | PKMKCCBLOCK pPrevBlock = pOldBlock->pNext;
|
---|
1440 | PKMKCCBLOCK pNewBlock;
|
---|
1441 | uint32_t cbBlock;
|
---|
1442 |
|
---|
1443 | /*
|
---|
1444 | * Check if there accidentally is some space left in the previous block first.
|
---|
1445 | */
|
---|
1446 | if ( pPrevBlock
|
---|
1447 | && pPrevBlock->cbBlock - pPrevBlock->offNext >= cb)
|
---|
1448 | {
|
---|
1449 | void *pvRet = (char *)pPrevBlock + pPrevBlock->offNext;
|
---|
1450 | pPrevBlock->offNext += cb;
|
---|
1451 | KMK_CC_BLOCK_DPRINTF(("kmk_cc_block_byte_alloc_grow: %p LB %#x offNext=%#x [prev]\n", pvRet, cb, pPrevBlock->offNext));
|
---|
1452 | return pvRet;
|
---|
1453 | }
|
---|
1454 |
|
---|
1455 | /*
|
---|
1456 | * Allocate a new block.
|
---|
1457 | */
|
---|
1458 |
|
---|
1459 | /* Figure the block size. */
|
---|
1460 | cbBlock = pOldBlock->cbBlock;
|
---|
1461 | while (cbBlock - sizeof(KMKCCEXPJUMP) - sizeof(*pNewBlock) < cb)
|
---|
1462 | cbBlock *= 2;
|
---|
1463 |
|
---|
1464 | /* Allocate and initialize the block it with the new instruction already accounted for. */
|
---|
1465 | pNewBlock = (PKMKCCBLOCK)xmalloc(cbBlock);
|
---|
1466 | pNewBlock->cbBlock = cbBlock;
|
---|
1467 | pNewBlock->offNext = sizeof(*pNewBlock) + cb;
|
---|
1468 | pNewBlock->pNext = pOldBlock;
|
---|
1469 | *ppBlockTail = pNewBlock;
|
---|
1470 |
|
---|
1471 | #ifdef KMK_CC_WITH_STATS
|
---|
1472 | g_cBlockAllocated++;
|
---|
1473 | g_cbAllocated += cbBlock;
|
---|
1474 | #endif
|
---|
1475 |
|
---|
1476 | KMK_CC_BLOCK_DPRINTF(("kmk_cc_block_byte_alloc_grow: %p LB %#x offNext=%#x\n", pNewBlock + 1, cb, pNewBlock->offNext));
|
---|
1477 | return pNewBlock + 1;
|
---|
1478 | }
|
---|
1479 |
|
---|
1480 |
|
---|
1481 | /**
|
---|
1482 | * Make a byte allocation.
|
---|
1483 | *
|
---|
1484 | * Must call kmk_cc_block_realign() when done doing byte and string allocations.
|
---|
1485 | *
|
---|
1486 | * @returns Pointer to the byte allocation (byte aligned).
|
---|
1487 | * @param ppBlockTail Pointer to the allocator tail pointer.
|
---|
1488 | * @param cb The number of bytes to allocate.
|
---|
1489 | */
|
---|
1490 | static void *kmk_cc_block_byte_alloc(PKMKCCBLOCK *ppBlockTail, uint32_t cb)
|
---|
1491 | {
|
---|
1492 | PKMKCCBLOCK pBlockTail = *ppBlockTail;
|
---|
1493 | uint32_t cbLeft = pBlockTail->cbBlock - pBlockTail->offNext;
|
---|
1494 |
|
---|
1495 | KMK_CC_ASSERT(cbLeft >= sizeof(KMKCCEXPJUMP));
|
---|
1496 | if (cbLeft >= cb + sizeof(KMKCCEXPJUMP))
|
---|
1497 | {
|
---|
1498 | void *pvRet = (char *)pBlockTail + pBlockTail->offNext;
|
---|
1499 | pBlockTail->offNext += cb;
|
---|
1500 | KMK_CC_BLOCK_DPRINTF(("kmk_cc_block_byte_alloc: %p LB %#x offNext=%#x\n", pvRet, cb, pBlockTail->offNext));
|
---|
1501 | return pvRet;
|
---|
1502 | }
|
---|
1503 | return kmk_cc_block_byte_alloc_grow(ppBlockTail, cb);
|
---|
1504 | }
|
---|
1505 |
|
---|
1506 |
|
---|
1507 | /**
|
---|
1508 | * Duplicates the given string in a byte allocation.
|
---|
1509 | *
|
---|
1510 | * Must call kmk_cc_block_realign() when done doing byte and string allocations.
|
---|
1511 | *
|
---|
1512 | * @returns Pointer to the byte allocation (byte aligned).
|
---|
1513 | * @param ppBlockTail Pointer to the allocator tail pointer.
|
---|
1514 | * @param cb The number of bytes to allocate.
|
---|
1515 | */
|
---|
1516 | static const char *kmk_cc_block_strdup(PKMKCCBLOCK *ppBlockTail, const char *pachStr, uint32_t cchStr)
|
---|
1517 | {
|
---|
1518 | char *pszCopy;
|
---|
1519 | if (cchStr)
|
---|
1520 | {
|
---|
1521 | pszCopy = kmk_cc_block_byte_alloc(ppBlockTail, cchStr + 1);
|
---|
1522 | memcpy(pszCopy, pachStr, cchStr);
|
---|
1523 | pszCopy[cchStr] = '\0';
|
---|
1524 | return pszCopy;
|
---|
1525 | }
|
---|
1526 | return "";
|
---|
1527 | }
|
---|
1528 |
|
---|
1529 |
|
---|
1530 | /**
|
---|
1531 | * Grows the allocation with another block, string expansion program case.
|
---|
1532 | *
|
---|
1533 | * @returns Pointer to a string expansion instruction core.
|
---|
1534 | * @param ppBlockTail Pointer to the allocator tail pointer.
|
---|
1535 | * @param cb The number of bytes to allocate.
|
---|
1536 | */
|
---|
1537 | static PKMKCCEXPCORE kmk_cc_block_alloc_exp_grow(PKMKCCBLOCK *ppBlockTail, uint32_t cb)
|
---|
1538 | {
|
---|
1539 | PKMKCCBLOCK pOldBlock = *ppBlockTail;
|
---|
1540 | PKMKCCBLOCK pNewBlock;
|
---|
1541 | PKMKCCEXPCORE pRet;
|
---|
1542 | PKMKCCEXPJUMP pJump;
|
---|
1543 |
|
---|
1544 | /* Figure the block size. */
|
---|
1545 | uint32_t cbBlock = !pOldBlock->pNext ? 128 : pOldBlock->cbBlock;
|
---|
1546 | while (cbBlock - sizeof(KMKCCEXPJUMP) - sizeof(*pNewBlock) < cb)
|
---|
1547 | cbBlock *= 2;
|
---|
1548 |
|
---|
1549 | /* Allocate and initialize the block it with the new instruction already accounted for. */
|
---|
1550 | pNewBlock = (PKMKCCBLOCK)xmalloc(cbBlock);
|
---|
1551 | pNewBlock->cbBlock = cbBlock;
|
---|
1552 | pNewBlock->offNext = sizeof(*pNewBlock) + cb;
|
---|
1553 | pNewBlock->pNext = pOldBlock;
|
---|
1554 | *ppBlockTail = pNewBlock;
|
---|
1555 |
|
---|
1556 | #ifdef KMK_CC_WITH_STATS
|
---|
1557 | g_cBlockAllocated++;
|
---|
1558 | g_cbAllocated += cbBlock;
|
---|
1559 | #endif
|
---|
1560 |
|
---|
1561 | pRet = (PKMKCCEXPCORE)(pNewBlock + 1);
|
---|
1562 | KMK_CC_ASSERT(((size_t)pRet & (sizeof(void *) - 1)) == 0);
|
---|
1563 |
|
---|
1564 | /* Emit jump. */
|
---|
1565 | pJump = (PKMKCCEXPJUMP)((char *)pOldBlock + pOldBlock->offNext);
|
---|
1566 | pJump->Core.enmOpcode = kKmkCcExpInstr_Jump;
|
---|
1567 | pJump->pNext = pRet;
|
---|
1568 | pOldBlock->offNext += sizeof(*pJump);
|
---|
1569 | KMK_CC_ASSERT(pOldBlock->offNext <= pOldBlock->cbBlock);
|
---|
1570 |
|
---|
1571 | KMK_CC_BLOCK_DPRINTF(("kmk_cc_block_alloc_exp_grow: %p LB %#x offNext=%#x\n", pRet, cb, pNewBlock->offNext));
|
---|
1572 | return pRet;
|
---|
1573 | }
|
---|
1574 |
|
---|
1575 |
|
---|
1576 | /**
|
---|
1577 | * Allocates a string expansion instruction of size @a cb.
|
---|
1578 | *
|
---|
1579 | * @returns Pointer to a string expansion instruction core.
|
---|
1580 | * @param ppBlockTail Pointer to the allocator tail pointer.
|
---|
1581 | * @param cb The number of bytes to allocate.
|
---|
1582 | */
|
---|
1583 | static PKMKCCEXPCORE kmk_cc_block_alloc_exp(PKMKCCBLOCK *ppBlockTail, uint32_t cb)
|
---|
1584 | {
|
---|
1585 | PKMKCCBLOCK pBlockTail = *ppBlockTail;
|
---|
1586 | uint32_t cbLeft = pBlockTail->cbBlock - pBlockTail->offNext;
|
---|
1587 |
|
---|
1588 | KMK_CC_ASSERT(cbLeft >= sizeof(KMKCCEXPJUMP));
|
---|
1589 | KMK_CC_ASSERT( (cb & (sizeof(void *) - 1)) == 0 || cb == sizeof(KMKCCEXPCORE) /* final */ );
|
---|
1590 | KMK_CC_ASSERT((pBlockTail->offNext & (sizeof(void *) - 1)) == 0);
|
---|
1591 |
|
---|
1592 | if (cbLeft >= cb + sizeof(KMKCCEXPJUMP))
|
---|
1593 | {
|
---|
1594 | PKMKCCEXPCORE pRet = (PKMKCCEXPCORE)((char *)pBlockTail + pBlockTail->offNext);
|
---|
1595 | pBlockTail->offNext += cb;
|
---|
1596 | KMK_CC_ASSERT(((size_t)pRet & (sizeof(void *) - 1)) == 0);
|
---|
1597 | KMK_CC_BLOCK_DPRINTF(("kmk_cc_block_alloc_exp: %p LB %#x offNext=%#x\n", pRet, cb, pBlockTail->offNext));
|
---|
1598 | return pRet;
|
---|
1599 | }
|
---|
1600 | return kmk_cc_block_alloc_exp_grow(ppBlockTail, cb);
|
---|
1601 | }
|
---|
1602 |
|
---|
1603 |
|
---|
1604 | /**
|
---|
1605 | * Grows the allocation with another block, makefile evaluation program case.
|
---|
1606 | *
|
---|
1607 | * @returns Pointer to a makefile evaluation instruction core.
|
---|
1608 | * @param ppBlockTail Pointer to the allocator tail pointer.
|
---|
1609 | * @param cb The number of bytes to allocate.
|
---|
1610 | */
|
---|
1611 | static PKMKCCEVALCORE kmk_cc_block_alloc_eval_grow(PKMKCCBLOCK *ppBlockTail, uint32_t cb)
|
---|
1612 | {
|
---|
1613 | PKMKCCBLOCK pOldBlock = *ppBlockTail;
|
---|
1614 | PKMKCCBLOCK pNewBlock;
|
---|
1615 | PKMKCCEVALCORE pRet;
|
---|
1616 | PKMKCCEVALJUMP pJump;
|
---|
1617 |
|
---|
1618 | /* Figure the block size. */
|
---|
1619 | uint32_t cbBlock = !pOldBlock->pNext ? 128 : pOldBlock->cbBlock;
|
---|
1620 | while (cbBlock - sizeof(KMKCCEVALJUMP) - sizeof(*pNewBlock) < cb)
|
---|
1621 | cbBlock *= 2;
|
---|
1622 |
|
---|
1623 | /* Allocate and initialize the block it with the new instruction already accounted for. */
|
---|
1624 | pNewBlock = (PKMKCCBLOCK)xmalloc(cbBlock);
|
---|
1625 | pNewBlock->cbBlock = cbBlock;
|
---|
1626 | pNewBlock->offNext = sizeof(*pNewBlock) + cb;
|
---|
1627 | pNewBlock->pNext = pOldBlock;
|
---|
1628 | *ppBlockTail = pNewBlock;
|
---|
1629 |
|
---|
1630 | #ifdef KMK_CC_WITH_STATS
|
---|
1631 | g_cBlockAllocated++;
|
---|
1632 | g_cbAllocated += cbBlock;
|
---|
1633 | #endif
|
---|
1634 |
|
---|
1635 | pRet = (PKMKCCEVALCORE)(pNewBlock + 1);
|
---|
1636 |
|
---|
1637 | /* Emit jump. */
|
---|
1638 | pJump = (PKMKCCEVALJUMP)((char *)pOldBlock + pOldBlock->offNext);
|
---|
1639 | pJump->Core.enmOpcode = kKmkCcEvalInstr_jump;
|
---|
1640 | pJump->pNext = pRet;
|
---|
1641 | pOldBlock->offNext += sizeof(*pJump);
|
---|
1642 | KMK_CC_ASSERT(pOldBlock->offNext <= pOldBlock->cbBlock);
|
---|
1643 | KMK_CC_ASSERT((pNewBlock->offNext & (sizeof(void *) - 1)) == 0);
|
---|
1644 |
|
---|
1645 | KMK_CC_BLOCK_DPRINTF(("kmk_cc_block_alloc_eval_grow: %p LB %#x offNext=%#x (*ppBlockTail=%p, was %p)\n",
|
---|
1646 | pRet, cb, pNewBlock->offNext, *ppBlockTail, pOldBlock));
|
---|
1647 | return pRet;
|
---|
1648 | }
|
---|
1649 |
|
---|
1650 |
|
---|
1651 | /**
|
---|
1652 | * Allocates a makefile evaluation instruction of size @a cb.
|
---|
1653 | *
|
---|
1654 | * @returns Pointer to a makefile evaluation instruction core.
|
---|
1655 | * @param ppBlockTail Pointer to the allocator tail pointer.
|
---|
1656 | * @param cb The number of bytes to allocate.
|
---|
1657 | */
|
---|
1658 | static PKMKCCEVALCORE kmk_cc_block_alloc_eval(PKMKCCBLOCK *ppBlockTail, uint32_t cb)
|
---|
1659 | {
|
---|
1660 | PKMKCCBLOCK pBlockTail = *ppBlockTail;
|
---|
1661 | uint32_t cbLeft = pBlockTail->cbBlock - pBlockTail->offNext;
|
---|
1662 |
|
---|
1663 | KMK_CC_ASSERT(cbLeft >= sizeof(KMKCCEVALJUMP));
|
---|
1664 | KMK_CC_ASSERT( (cb & (sizeof(void *) - 1)) == 0 );
|
---|
1665 | KMK_CC_ASSERT((pBlockTail->offNext & (sizeof(void *) - 1)) == 0);
|
---|
1666 |
|
---|
1667 | if (cbLeft >= cb + sizeof(KMKCCEVALJUMP))
|
---|
1668 | {
|
---|
1669 | PKMKCCEVALCORE pRet = (PKMKCCEVALCORE)((char *)pBlockTail + pBlockTail->offNext);
|
---|
1670 | pBlockTail->offNext += cb;
|
---|
1671 | KMK_CC_BLOCK_DPRINTF(("kmk_cc_block_alloc_eval: %p LB %#x offNext=%#x\n", pRet, cb, pBlockTail->offNext));
|
---|
1672 | return pRet;
|
---|
1673 | }
|
---|
1674 | return kmk_cc_block_alloc_eval_grow(ppBlockTail, cb);
|
---|
1675 | }
|
---|
1676 |
|
---|
1677 |
|
---|
1678 | /**
|
---|
1679 | * Frees all memory used by an allocator.
|
---|
1680 | *
|
---|
1681 | * @param ppBlockTail The allocator tail pointer.
|
---|
1682 | */
|
---|
1683 | static void kmk_cc_block_free_list(PKMKCCBLOCK pBlockTail)
|
---|
1684 | {
|
---|
1685 | while (pBlockTail)
|
---|
1686 | {
|
---|
1687 | PKMKCCBLOCK pThis = pBlockTail;
|
---|
1688 | pBlockTail = pBlockTail->pNext;
|
---|
1689 | free(pThis);
|
---|
1690 | }
|
---|
1691 | }
|
---|
1692 |
|
---|
1693 |
|
---|
1694 | /*
|
---|
1695 | *
|
---|
1696 | * The string expansion compiler.
|
---|
1697 | * The string expansion compiler.
|
---|
1698 | * The string expansion compiler.
|
---|
1699 | *
|
---|
1700 | */
|
---|
1701 |
|
---|
1702 |
|
---|
1703 | /**
|
---|
1704 | * Emits a kKmkCcExpInstr_Return.
|
---|
1705 | *
|
---|
1706 | * @param ppBlockTail Pointer to the allocator tail pointer.
|
---|
1707 | */
|
---|
1708 | static void kmk_cc_exp_emit_return(PKMKCCBLOCK *ppBlockTail)
|
---|
1709 | {
|
---|
1710 | PKMKCCEXPCORE pCore = kmk_cc_block_alloc_exp(ppBlockTail, sizeof(*pCore));
|
---|
1711 | pCore->enmOpcode = kKmkCcExpInstr_Return;
|
---|
1712 | kmk_cc_block_realign(ppBlockTail);
|
---|
1713 | }
|
---|
1714 |
|
---|
1715 |
|
---|
1716 | /**
|
---|
1717 | * Checks if a function is known to mess up the arguments its given.
|
---|
1718 | *
|
---|
1719 | * When executing calls to "dirty" functions, all arguments must be duplicated
|
---|
1720 | * on the heap.
|
---|
1721 | *
|
---|
1722 | * @returns 1 if dirty, 0 if clean.
|
---|
1723 | * @param pszFunction The function name.
|
---|
1724 | */
|
---|
1725 | static uint8_t kmk_cc_is_dirty_function(const char *pszFunction)
|
---|
1726 | {
|
---|
1727 | switch (pszFunction[0])
|
---|
1728 | {
|
---|
1729 | default:
|
---|
1730 | return 0;
|
---|
1731 |
|
---|
1732 | case 'e':
|
---|
1733 | if (!strcmp(pszFunction, "eval"))
|
---|
1734 | return 1;
|
---|
1735 | if (!strcmp(pszFunction, "evalctx"))
|
---|
1736 | return 1;
|
---|
1737 | return 0;
|
---|
1738 |
|
---|
1739 | case 'f':
|
---|
1740 | if (!strcmp(pszFunction, "filter"))
|
---|
1741 | return 1;
|
---|
1742 | if (!strcmp(pszFunction, "filter-out"))
|
---|
1743 | return 1;
|
---|
1744 | if (!strcmp(pszFunction, "for"))
|
---|
1745 | return 1;
|
---|
1746 | return 0;
|
---|
1747 |
|
---|
1748 | case 's':
|
---|
1749 | if (!strcmp(pszFunction, "sort"))
|
---|
1750 | return 1;
|
---|
1751 | return 0;
|
---|
1752 | }
|
---|
1753 | }
|
---|
1754 |
|
---|
1755 |
|
---|
1756 | /**
|
---|
1757 | * Emits a function call instruction taking arguments that needs expanding.
|
---|
1758 | *
|
---|
1759 | * @returns 0 on success, non-zero on failure.
|
---|
1760 | * @param ppBlockTail Pointer to the allocator tail pointer.
|
---|
1761 | * @param pszFunction The function name (const string from function.c).
|
---|
1762 | * @param pchArgs Pointer to the arguments expression string, leading
|
---|
1763 | * any blanks has been stripped.
|
---|
1764 | * @param cchArgs The length of the arguments expression string.
|
---|
1765 | * @param cArgs Number of arguments found.
|
---|
1766 | * @param chOpen The char used to open the function call.
|
---|
1767 | * @param chClose The char used to close the function call.
|
---|
1768 | * @param pfnFunction The function implementation.
|
---|
1769 | * @param cMaxArgs Maximum number of arguments the function takes.
|
---|
1770 | */
|
---|
1771 | static int kmk_cc_exp_emit_dyn_function(PKMKCCBLOCK *ppBlockTail, const char *pszFunction,
|
---|
1772 | const char *pchArgs, uint32_t cchArgs, uint32_t cArgs, char chOpen, char chClose,
|
---|
1773 | make_function_ptr_t pfnFunction, unsigned char cMaxArgs)
|
---|
1774 | {
|
---|
1775 | uint32_t iArg;
|
---|
1776 |
|
---|
1777 | /*
|
---|
1778 | * The function instruction has variable size. The maximum argument count
|
---|
1779 | * isn't quite like the minium one. Zero means no limit. While a non-zero
|
---|
1780 | * value means that any commas beyond the max will be taken to be part of
|
---|
1781 | * the final argument.
|
---|
1782 | */
|
---|
1783 | uint32_t cActualArgs = cArgs <= cMaxArgs || !cMaxArgs ? cArgs : cMaxArgs;
|
---|
1784 | PKMKCCEXPDYNFUNC pInstr = (PKMKCCEXPDYNFUNC)kmk_cc_block_alloc_exp(ppBlockTail, KMKCCEXPDYNFUNC_SIZE(cActualArgs));
|
---|
1785 | pInstr->FnCore.Core.enmOpcode = kKmkCcExpInstr_DynamicFunction;
|
---|
1786 | pInstr->FnCore.cArgs = cActualArgs;
|
---|
1787 | pInstr->FnCore.pfnFunction = pfnFunction;
|
---|
1788 | pInstr->FnCore.pszFuncName = pszFunction;
|
---|
1789 | pInstr->FnCore.fDirty = kmk_cc_is_dirty_function(pszFunction);
|
---|
1790 |
|
---|
1791 | /*
|
---|
1792 | * Parse the arguments. Plain arguments gets duplicated in the program
|
---|
1793 | * memory so that they are terminated and no extra processing is necessary
|
---|
1794 | * later on. ASSUMES that the function implementations do NOT change
|
---|
1795 | * argument memory. Other arguments the compiled into their own expansion
|
---|
1796 | * sub programs.
|
---|
1797 | */
|
---|
1798 | iArg = 0;
|
---|
1799 | for (;;)
|
---|
1800 | {
|
---|
1801 | /* Find the end of the argument. Check for $. */
|
---|
1802 | char ch = '\0';
|
---|
1803 | uint8_t fDollar = 0;
|
---|
1804 | int32_t cDepth = 0;
|
---|
1805 | uint32_t cchThisArg = 0;
|
---|
1806 | while (cchThisArg < cchArgs)
|
---|
1807 | {
|
---|
1808 | ch = pchArgs[cchThisArg];
|
---|
1809 | if (ch == chClose)
|
---|
1810 | {
|
---|
1811 | KMK_CC_ASSERT(cDepth > 0);
|
---|
1812 | if (cDepth > 0)
|
---|
1813 | cDepth--;
|
---|
1814 | }
|
---|
1815 | else if (ch == chOpen)
|
---|
1816 | cDepth++;
|
---|
1817 | else if (ch == ',' && cDepth == 0 && iArg + 1 < cActualArgs)
|
---|
1818 | break;
|
---|
1819 | else if (ch == '$')
|
---|
1820 | fDollar = 1;
|
---|
1821 | cchThisArg++;
|
---|
1822 | }
|
---|
1823 |
|
---|
1824 | pInstr->aArgs[iArg].fSubprog = fDollar;
|
---|
1825 | if (fDollar)
|
---|
1826 | {
|
---|
1827 | /* Compile it. */
|
---|
1828 | int rc;
|
---|
1829 | kmk_cc_block_realign(ppBlockTail);
|
---|
1830 | rc = kmk_cc_exp_compile_subprog(ppBlockTail, pchArgs, cchThisArg, &pInstr->aArgs[iArg].u.Subprog);
|
---|
1831 | if (rc != 0)
|
---|
1832 | return rc;
|
---|
1833 | }
|
---|
1834 | else
|
---|
1835 | {
|
---|
1836 | /* Duplicate it. */
|
---|
1837 | pInstr->aArgs[iArg].u.Plain.psz = kmk_cc_block_strdup(ppBlockTail, pchArgs, cchThisArg);
|
---|
1838 | pInstr->aArgs[iArg].u.Plain.cch = cchThisArg;
|
---|
1839 | }
|
---|
1840 | iArg++;
|
---|
1841 | if (ch != ',')
|
---|
1842 | break;
|
---|
1843 | pchArgs += cchThisArg + 1;
|
---|
1844 | cchArgs -= cchThisArg + 1;
|
---|
1845 | }
|
---|
1846 | KMK_CC_ASSERT(iArg == cActualArgs);
|
---|
1847 |
|
---|
1848 | /*
|
---|
1849 | * Realign the allocator and take down the address of the next instruction.
|
---|
1850 | */
|
---|
1851 | kmk_cc_block_realign(ppBlockTail);
|
---|
1852 | pInstr->FnCore.pNext = (PKMKCCEXPCORE)kmk_cc_block_get_next_ptr(*ppBlockTail);
|
---|
1853 | return 0;
|
---|
1854 | }
|
---|
1855 |
|
---|
1856 |
|
---|
1857 | /**
|
---|
1858 | * Emits a function call instruction taking plain arguments.
|
---|
1859 | *
|
---|
1860 | * @returns 0 on success, non-zero on failure.
|
---|
1861 | * @param ppBlockTail Pointer to the allocator tail pointer.
|
---|
1862 | * @param pszFunction The function name (const string from function.c).
|
---|
1863 | * @param pchArgs Pointer to the arguments string, leading any blanks
|
---|
1864 | * has been stripped.
|
---|
1865 | * @param cchArgs The length of the arguments string.
|
---|
1866 | * @param cArgs Number of arguments found.
|
---|
1867 | * @param chOpen The char used to open the function call.
|
---|
1868 | * @param chClose The char used to close the function call.
|
---|
1869 | * @param pfnFunction The function implementation.
|
---|
1870 | * @param cMaxArgs Maximum number of arguments the function takes.
|
---|
1871 | */
|
---|
1872 | static void kmk_cc_exp_emit_plain_function(PKMKCCBLOCK *ppBlockTail, const char *pszFunction,
|
---|
1873 | const char *pchArgs, uint32_t cchArgs, uint32_t cArgs, char chOpen, char chClose,
|
---|
1874 | make_function_ptr_t pfnFunction, unsigned char cMaxArgs)
|
---|
1875 | {
|
---|
1876 | uint32_t iArg;
|
---|
1877 |
|
---|
1878 | /*
|
---|
1879 | * The function instruction has variable size. The maximum argument count
|
---|
1880 | * isn't quite like the minium one. Zero means no limit. While a non-zero
|
---|
1881 | * value means that any commas beyond the max will be taken to be part of
|
---|
1882 | * the final argument.
|
---|
1883 | */
|
---|
1884 | uint32_t cActualArgs = cArgs <= cMaxArgs || !cMaxArgs ? cArgs : cMaxArgs;
|
---|
1885 | PKMKCCEXPPLAINFUNC pInstr = (PKMKCCEXPPLAINFUNC)kmk_cc_block_alloc_exp(ppBlockTail, KMKCCEXPPLAINFUNC_SIZE(cActualArgs));
|
---|
1886 | pInstr->FnCore.Core.enmOpcode = kKmkCcExpInstr_PlainFunction;
|
---|
1887 | pInstr->FnCore.cArgs = cActualArgs;
|
---|
1888 | pInstr->FnCore.pfnFunction = pfnFunction;
|
---|
1889 | pInstr->FnCore.pszFuncName = pszFunction;
|
---|
1890 | pInstr->FnCore.fDirty = kmk_cc_is_dirty_function(pszFunction);
|
---|
1891 |
|
---|
1892 | /*
|
---|
1893 | * Parse the arguments. Plain arguments gets duplicated in the program
|
---|
1894 | * memory so that they are terminated and no extra processing is necessary
|
---|
1895 | * later on. ASSUMES that the function implementations do NOT change
|
---|
1896 | * argument memory.
|
---|
1897 | */
|
---|
1898 | iArg = 0;
|
---|
1899 | for (;;)
|
---|
1900 | {
|
---|
1901 | /* Find the end of the argument. */
|
---|
1902 | char ch = '\0';
|
---|
1903 | int32_t cDepth = 0;
|
---|
1904 | uint32_t cchThisArg = 0;
|
---|
1905 | while (cchThisArg < cchArgs)
|
---|
1906 | {
|
---|
1907 | ch = pchArgs[cchThisArg];
|
---|
1908 | if (ch == chClose)
|
---|
1909 | {
|
---|
1910 | KMK_CC_ASSERT(cDepth > 0);
|
---|
1911 | if (cDepth > 0)
|
---|
1912 | cDepth--;
|
---|
1913 | }
|
---|
1914 | else if (ch == chOpen)
|
---|
1915 | cDepth++;
|
---|
1916 | else if (ch == ',' && cDepth == 0 && iArg + 1 < cActualArgs)
|
---|
1917 | break;
|
---|
1918 | cchThisArg++;
|
---|
1919 | }
|
---|
1920 |
|
---|
1921 | /* Duplicate it. */
|
---|
1922 | pInstr->apszArgs[iArg++] = kmk_cc_block_strdup(ppBlockTail, pchArgs, cchThisArg);
|
---|
1923 | if (ch != ',')
|
---|
1924 | break;
|
---|
1925 | pchArgs += cchThisArg + 1;
|
---|
1926 | cchArgs -= cchThisArg + 1;
|
---|
1927 | }
|
---|
1928 |
|
---|
1929 | KMK_CC_ASSERT(iArg == cActualArgs);
|
---|
1930 | pInstr->apszArgs[iArg] = NULL;
|
---|
1931 |
|
---|
1932 | /*
|
---|
1933 | * Realign the allocator and take down the address of the next instruction.
|
---|
1934 | */
|
---|
1935 | kmk_cc_block_realign(ppBlockTail);
|
---|
1936 | pInstr->FnCore.pNext = (PKMKCCEXPCORE)kmk_cc_block_get_next_ptr(*ppBlockTail);
|
---|
1937 | }
|
---|
1938 |
|
---|
1939 |
|
---|
1940 | /**
|
---|
1941 | * Emits a kKmkCcExpInstr_DynamicVariable.
|
---|
1942 | *
|
---|
1943 | * @returns 0 on success, non-zero on failure.
|
---|
1944 | * @param ppBlockTail Pointer to the allocator tail pointer.
|
---|
1945 | * @param pchNameExpr The name of the variable (ASSUMED presistent
|
---|
1946 | * thru-out the program life time).
|
---|
1947 | * @param cchNameExpr The length of the variable name. If zero,
|
---|
1948 | * nothing will be emitted.
|
---|
1949 | */
|
---|
1950 | static int kmk_cc_exp_emit_dyn_variable(PKMKCCBLOCK *ppBlockTail, const char *pchNameExpr, uint32_t cchNameExpr)
|
---|
1951 | {
|
---|
1952 | PKMKCCEXPDYNVAR pInstr;
|
---|
1953 | int rc;
|
---|
1954 | KMK_CC_ASSERT(cchNameExpr > 0);
|
---|
1955 |
|
---|
1956 | pInstr = (PKMKCCEXPDYNVAR)kmk_cc_block_alloc_exp(ppBlockTail, sizeof(*pInstr));
|
---|
1957 | pInstr->Core.enmOpcode = kKmkCcExpInstr_DynamicVariable;
|
---|
1958 |
|
---|
1959 | rc = kmk_cc_exp_compile_subprog(ppBlockTail, pchNameExpr, cchNameExpr, &pInstr->Subprog);
|
---|
1960 |
|
---|
1961 | pInstr->pNext = (PKMKCCEXPCORE)kmk_cc_block_get_next_ptr(*ppBlockTail);
|
---|
1962 | return rc;
|
---|
1963 | }
|
---|
1964 |
|
---|
1965 |
|
---|
1966 | /**
|
---|
1967 | * Emits either a kKmkCcExpInstr_PlainVariable or
|
---|
1968 | * kKmkCcExpInstr_SearchAndReplacePlainVariable instruction.
|
---|
1969 | *
|
---|
1970 | * @param ppBlockTail Pointer to the allocator tail pointer.
|
---|
1971 | * @param pchName The name of the variable. (Does not need to be
|
---|
1972 | * valid beyond the call.)
|
---|
1973 | * @param cchName The length of the variable name. If zero,
|
---|
1974 | * nothing will be emitted.
|
---|
1975 | */
|
---|
1976 | static void kmk_cc_exp_emit_plain_variable_maybe_sr(PKMKCCBLOCK *ppBlockTail, const char *pchName, uint32_t cchName)
|
---|
1977 | {
|
---|
1978 | if (cchName > 0)
|
---|
1979 | {
|
---|
1980 | /*
|
---|
1981 | * Hopefully, we're not expected to do any search and replace on the
|
---|
1982 | * expanded variable string later... Requires both ':' and '='.
|
---|
1983 | */
|
---|
1984 | const char *pchEqual;
|
---|
1985 | const char *pchColon = (const char *)memchr(pchName, ':', cchName);
|
---|
1986 | if ( pchColon == NULL
|
---|
1987 | || (pchEqual = (const char *)memchr(pchColon + 1, ':', cchName - (pchColon - pchName - 1))) == NULL
|
---|
1988 | || pchEqual == pchEqual + 1)
|
---|
1989 | {
|
---|
1990 | PKMKCCEXPPLAINVAR pInstr = (PKMKCCEXPPLAINVAR)kmk_cc_block_alloc_exp(ppBlockTail, sizeof(*pInstr));
|
---|
1991 | pInstr->Core.enmOpcode = kKmkCcExpInstr_PlainVariable;
|
---|
1992 | pInstr->pszName = strcache2_add(&variable_strcache, pchName, cchName);
|
---|
1993 | }
|
---|
1994 | else if (pchColon != pchName)
|
---|
1995 | {
|
---|
1996 | /*
|
---|
1997 | * Okay, we need to do search and replace the variable value.
|
---|
1998 | * This is performed by patsubst_expand_pat using '%' patterns.
|
---|
1999 | */
|
---|
2000 | uint32_t cchName2 = (uint32_t)(pchColon - pchName);
|
---|
2001 | uint32_t cchSearch = (uint32_t)(pchEqual - pchColon - 1);
|
---|
2002 | uint32_t cchReplace = cchName - cchName2 - cchSearch - 2;
|
---|
2003 | const char *pchPct;
|
---|
2004 | char *psz;
|
---|
2005 | PKMKCCEXPSRPLAINVAR pInstr;
|
---|
2006 |
|
---|
2007 | pInstr = (PKMKCCEXPSRPLAINVAR)kmk_cc_block_alloc_exp(ppBlockTail, sizeof(*pInstr));
|
---|
2008 | pInstr->Core.enmOpcode = kKmkCcExpInstr_SearchAndReplacePlainVariable;
|
---|
2009 | pInstr->pszName = strcache2_add(&variable_strcache, pchName, cchName2);
|
---|
2010 |
|
---|
2011 | /* Figure out the search pattern, unquoting percent chars.. */
|
---|
2012 | psz = (char *)kmk_cc_block_byte_alloc(ppBlockTail, cchSearch + 2);
|
---|
2013 | psz[0] = '%';
|
---|
2014 | memcpy(psz + 1, pchColon + 1, cchSearch);
|
---|
2015 | psz[1 + cchSearch] = '\0';
|
---|
2016 | pchPct = find_percent(psz + 1); /* also performs unquoting */
|
---|
2017 | if (pchPct)
|
---|
2018 | {
|
---|
2019 | pInstr->pszSearchPattern = psz + 1;
|
---|
2020 | pInstr->offPctSearchPattern = (uint32_t)(pchPct - psz - 1);
|
---|
2021 | }
|
---|
2022 | else
|
---|
2023 | {
|
---|
2024 | pInstr->pszSearchPattern = psz;
|
---|
2025 | pInstr->offPctSearchPattern = 0;
|
---|
2026 | }
|
---|
2027 |
|
---|
2028 | /* Figure out the replacement pattern, unquoting percent chars.. */
|
---|
2029 | if (cchReplace == 0)
|
---|
2030 | {
|
---|
2031 | pInstr->pszReplacePattern = "%";
|
---|
2032 | pInstr->offPctReplacePattern = 0;
|
---|
2033 | }
|
---|
2034 | else
|
---|
2035 | {
|
---|
2036 | psz = (char *)kmk_cc_block_byte_alloc(ppBlockTail, cchReplace + 2);
|
---|
2037 | psz[0] = '%';
|
---|
2038 | memcpy(psz + 1, pchEqual + 1, cchReplace);
|
---|
2039 | psz[1 + cchReplace] = '\0';
|
---|
2040 | pchPct = find_percent(psz + 1); /* also performs unquoting */
|
---|
2041 | if (pchPct)
|
---|
2042 | {
|
---|
2043 | pInstr->pszReplacePattern = psz + 1;
|
---|
2044 | pInstr->offPctReplacePattern = (uint32_t)(pchPct - psz - 1);
|
---|
2045 | }
|
---|
2046 | else
|
---|
2047 | {
|
---|
2048 | pInstr->pszReplacePattern = psz;
|
---|
2049 | pInstr->offPctReplacePattern = 0;
|
---|
2050 | }
|
---|
2051 | }
|
---|
2052 |
|
---|
2053 | /* Note down where the next instruction is after realigning the allocator. */
|
---|
2054 | kmk_cc_block_realign(ppBlockTail);
|
---|
2055 | pInstr->pNext = (PKMKCCEXPCORE)kmk_cc_block_get_next_ptr(*ppBlockTail);
|
---|
2056 | }
|
---|
2057 | }
|
---|
2058 | }
|
---|
2059 |
|
---|
2060 |
|
---|
2061 | /**
|
---|
2062 | * Emits a kKmkCcExpInstr_CopyString.
|
---|
2063 | *
|
---|
2064 | * @param ppBlockTail Pointer to the allocator tail pointer.
|
---|
2065 | * @param pchStr The string to emit (ASSUMED presistent thru-out
|
---|
2066 | * the program life time).
|
---|
2067 | * @param cchStr The number of chars to copy. If zero, nothing
|
---|
2068 | * will be emitted.
|
---|
2069 | */
|
---|
2070 | static void kmk_cc_exp_emit_copy_string(PKMKCCBLOCK *ppBlockTail, const char *pchStr, uint32_t cchStr)
|
---|
2071 | {
|
---|
2072 | if (cchStr > 0)
|
---|
2073 | {
|
---|
2074 | PKMKCCEXPCOPYSTRING pInstr = (PKMKCCEXPCOPYSTRING)kmk_cc_block_alloc_exp(ppBlockTail, sizeof(*pInstr));
|
---|
2075 | pInstr->Core.enmOpcode = kKmkCcExpInstr_CopyString;
|
---|
2076 | pInstr->cchCopy = cchStr;
|
---|
2077 | pInstr->pachSrc = pchStr;
|
---|
2078 | }
|
---|
2079 | }
|
---|
2080 |
|
---|
2081 |
|
---|
2082 | /**
|
---|
2083 | * String expansion compilation function common to both normal and sub programs.
|
---|
2084 | *
|
---|
2085 | * @returns 0 on success, non-zero on failure.
|
---|
2086 | * @param ppBlockTail Pointer to the allocator tail pointer.
|
---|
2087 | * @param pchStr The expression to compile.
|
---|
2088 | * @param cchStr The length of the expression to compile.
|
---|
2089 | */
|
---|
2090 | static int kmk_cc_exp_compile_common(PKMKCCBLOCK *ppBlockTail, const char *pchStr, uint32_t cchStr)
|
---|
2091 | {
|
---|
2092 | /*
|
---|
2093 | * Process the string.
|
---|
2094 | */
|
---|
2095 | while (cchStr > 0)
|
---|
2096 | {
|
---|
2097 | /* Look for dollar sign, marks variable expansion or dollar-escape. */
|
---|
2098 | int rc;
|
---|
2099 | const char *pchDollar = memchr(pchStr, '$', cchStr);
|
---|
2100 | if (pchDollar)
|
---|
2101 | {
|
---|
2102 | /*
|
---|
2103 | * Check for multiple dollar chars.
|
---|
2104 | */
|
---|
2105 | uint32_t offDollar = (uint32_t)(pchDollar - pchStr);
|
---|
2106 | uint32_t cDollars = 1;
|
---|
2107 | while ( offDollar + cDollars < cchStr
|
---|
2108 | && pchStr[offDollar + cDollars] == '$')
|
---|
2109 | cDollars++;
|
---|
2110 |
|
---|
2111 | /*
|
---|
2112 | * Emit a string copy for any preceeding stuff, including half of
|
---|
2113 | * the dollars we found (dollar escape: $$ -> $).
|
---|
2114 | * (kmk_cc_exp_emit_copy_string ignore zero length strings).
|
---|
2115 | */
|
---|
2116 | kmk_cc_exp_emit_copy_string(ppBlockTail, pchStr, offDollar + cDollars / 2);
|
---|
2117 | pchStr += offDollar + cDollars;
|
---|
2118 | cchStr -= offDollar + cDollars;
|
---|
2119 |
|
---|
2120 | /*
|
---|
2121 | * Odd number of dollar chars means there is a variable to expand
|
---|
2122 | * or function to call.
|
---|
2123 | */
|
---|
2124 | if (cDollars & 1)
|
---|
2125 | {
|
---|
2126 | if (cchStr > 0)
|
---|
2127 | {
|
---|
2128 | char const chOpen = *pchStr;
|
---|
2129 | if (chOpen == '(' || chOpen == '{')
|
---|
2130 | {
|
---|
2131 | /* There are several alternative ways of finding the ending
|
---|
2132 | parenthesis / braces.
|
---|
2133 |
|
---|
2134 | GNU make does one thing for functions and variable containing
|
---|
2135 | any '$' chars before the first closing char. While for
|
---|
2136 | variables where a closing char comes before any '$' char, a
|
---|
2137 | simplified approach is taken. This means that for example:
|
---|
2138 |
|
---|
2139 | Given VAR=var, the expressions "$(var())" and
|
---|
2140 | "$($(VAR)())" would be expanded differently.
|
---|
2141 | In the first case the variable "var(" would be
|
---|
2142 | used and in the second "var()".
|
---|
2143 |
|
---|
2144 | This code will not duplicate this weird behavior, but work
|
---|
2145 | the same regardless of whether there is a '$' char before
|
---|
2146 | the first closing char. */
|
---|
2147 | make_function_ptr_t pfnFunction;
|
---|
2148 | const char *pszFunction;
|
---|
2149 | unsigned char cMaxArgs;
|
---|
2150 | unsigned char cMinArgs;
|
---|
2151 | char fExpandArgs;
|
---|
2152 | char const chClose = chOpen == '(' ? ')' : '}';
|
---|
2153 | char ch = 0;
|
---|
2154 | uint32_t cchName = 0;
|
---|
2155 | uint32_t cDepth = 1;
|
---|
2156 | uint32_t cMaxDepth = 1;
|
---|
2157 | cDollars = 0;
|
---|
2158 |
|
---|
2159 | pchStr++;
|
---|
2160 | cchStr--;
|
---|
2161 |
|
---|
2162 | /* First loop: Identify potential function calls and dynamic expansion. */
|
---|
2163 | KMK_CC_ASSERT(!func_char_map[(unsigned char)chOpen]);
|
---|
2164 | KMK_CC_ASSERT(!func_char_map[(unsigned char)chClose]);
|
---|
2165 | KMK_CC_ASSERT(!func_char_map[(unsigned char)'$']);
|
---|
2166 | while (cchName < cchStr)
|
---|
2167 | {
|
---|
2168 | ch = pchStr[cchName];
|
---|
2169 | if (!func_char_map[(unsigned char)ch])
|
---|
2170 | break;
|
---|
2171 | cchName++;
|
---|
2172 | }
|
---|
2173 |
|
---|
2174 | if ( cchName >= MIN_FUNCTION_LENGTH
|
---|
2175 | && cchName <= MAX_FUNCTION_LENGTH
|
---|
2176 | && (ISBLANK(ch) || ch == chClose || cchName == cchStr)
|
---|
2177 | && (pfnFunction = lookup_function_for_compiler(pchStr, cchName, &cMinArgs, &cMaxArgs,
|
---|
2178 | &fExpandArgs, &pszFunction)) != NULL)
|
---|
2179 | {
|
---|
2180 | /*
|
---|
2181 | * It's a function invocation, we should count parameters while
|
---|
2182 | * looking for the end.
|
---|
2183 | * Note! We use cchName for the length of the argument list.
|
---|
2184 | */
|
---|
2185 | uint32_t cArgs = 1;
|
---|
2186 | if (ch != chClose)
|
---|
2187 | {
|
---|
2188 | /* Skip leading spaces before the first arg. */
|
---|
2189 | cchName++;
|
---|
2190 | while (cchName < cchStr && ISBLANK(pchStr[cchName]))
|
---|
2191 | cchName++;
|
---|
2192 |
|
---|
2193 | pchStr += cchName;
|
---|
2194 | cchStr -= cchName;
|
---|
2195 | cchName = 0;
|
---|
2196 |
|
---|
2197 | while (cchName < cchStr)
|
---|
2198 | {
|
---|
2199 | ch = pchStr[cchName];
|
---|
2200 | if (ch == ',')
|
---|
2201 | {
|
---|
2202 | if (cDepth == 1)
|
---|
2203 | cArgs++;
|
---|
2204 | }
|
---|
2205 | else if (ch == chClose)
|
---|
2206 | {
|
---|
2207 | if (!--cDepth)
|
---|
2208 | break;
|
---|
2209 | }
|
---|
2210 | else if (ch == chOpen)
|
---|
2211 | {
|
---|
2212 | if (++cDepth > cMaxDepth)
|
---|
2213 | cMaxDepth = cDepth;
|
---|
2214 | }
|
---|
2215 | else if (ch == '$')
|
---|
2216 | cDollars++;
|
---|
2217 | cchName++;
|
---|
2218 | }
|
---|
2219 | }
|
---|
2220 | else
|
---|
2221 | {
|
---|
2222 | pchStr += cchName;
|
---|
2223 | cchStr -= cchName;
|
---|
2224 | cchName = 0;
|
---|
2225 | }
|
---|
2226 | if (cArgs < cMinArgs)
|
---|
2227 | {
|
---|
2228 | fatal(NULL, _("Function '%s' takes a minimum of %d arguments: %d given"),
|
---|
2229 | pszFunction, (int)cMinArgs, (int)cArgs);
|
---|
2230 | return -1; /* not reached */
|
---|
2231 | }
|
---|
2232 | if (cDepth != 0)
|
---|
2233 | {
|
---|
2234 | fatal(NULL, chOpen == '('
|
---|
2235 | ? _("Missing closing parenthesis calling '%s'") : _("Missing closing braces calling '%s'"),
|
---|
2236 | pszFunction);
|
---|
2237 | return -1; /* not reached */
|
---|
2238 | }
|
---|
2239 | if (cMaxDepth > 16 && fExpandArgs)
|
---|
2240 | {
|
---|
2241 | fatal(NULL, _("Too many levels of nested function arguments expansions: %s"), pszFunction);
|
---|
2242 | return -1; /* not reached */
|
---|
2243 | }
|
---|
2244 | if (!fExpandArgs || cDollars == 0)
|
---|
2245 | kmk_cc_exp_emit_plain_function(ppBlockTail, pszFunction, pchStr, cchName,
|
---|
2246 | cArgs, chOpen, chClose, pfnFunction, cMaxArgs);
|
---|
2247 | else
|
---|
2248 | {
|
---|
2249 | rc = kmk_cc_exp_emit_dyn_function(ppBlockTail, pszFunction, pchStr, cchName,
|
---|
2250 | cArgs, chOpen, chClose, pfnFunction, cMaxArgs);
|
---|
2251 | if (rc != 0)
|
---|
2252 | return rc;
|
---|
2253 | }
|
---|
2254 | }
|
---|
2255 | else
|
---|
2256 | {
|
---|
2257 | /*
|
---|
2258 | * Variable, find the end while checking whether anything needs expanding.
|
---|
2259 | */
|
---|
2260 | if (ch == chClose)
|
---|
2261 | cDepth = 0;
|
---|
2262 | else if (cchName < cchStr)
|
---|
2263 | {
|
---|
2264 | if (ch != '$')
|
---|
2265 | {
|
---|
2266 | /* Second loop: Look for things that needs expanding. */
|
---|
2267 | while (cchName < cchStr)
|
---|
2268 | {
|
---|
2269 | ch = pchStr[cchName];
|
---|
2270 | if (ch == chClose)
|
---|
2271 | {
|
---|
2272 | if (!--cDepth)
|
---|
2273 | break;
|
---|
2274 | }
|
---|
2275 | else if (ch == chOpen)
|
---|
2276 | {
|
---|
2277 | if (++cDepth > cMaxDepth)
|
---|
2278 | cMaxDepth = cDepth;
|
---|
2279 | }
|
---|
2280 | else if (ch == '$')
|
---|
2281 | break;
|
---|
2282 | cchName++;
|
---|
2283 | }
|
---|
2284 | }
|
---|
2285 | if (ch == '$')
|
---|
2286 | {
|
---|
2287 | /* Third loop: Something needs expanding, just find the end. */
|
---|
2288 | cDollars = 1;
|
---|
2289 | cchName++;
|
---|
2290 | while (cchName < cchStr)
|
---|
2291 | {
|
---|
2292 | ch = pchStr[cchName];
|
---|
2293 | if (ch == chClose)
|
---|
2294 | {
|
---|
2295 | if (!--cDepth)
|
---|
2296 | break;
|
---|
2297 | }
|
---|
2298 | else if (ch == chOpen)
|
---|
2299 | {
|
---|
2300 | if (++cDepth > cMaxDepth)
|
---|
2301 | cMaxDepth = cDepth;
|
---|
2302 | }
|
---|
2303 | cchName++;
|
---|
2304 | }
|
---|
2305 | }
|
---|
2306 | }
|
---|
2307 | if (cDepth > 0) /* After warning, we just assume they're all there. */
|
---|
2308 | error(NULL, chOpen == '(' ? _("Missing closing parenthesis ") : _("Missing closing braces"));
|
---|
2309 | if (cMaxDepth >= 16)
|
---|
2310 | {
|
---|
2311 | fatal(NULL, _("Too many levels of nested variable expansions: '%.*s'"), (int)cchName + 2, pchStr - 1);
|
---|
2312 | return -1; /* not reached */
|
---|
2313 | }
|
---|
2314 | if (cDollars == 0)
|
---|
2315 | kmk_cc_exp_emit_plain_variable_maybe_sr(ppBlockTail, pchStr, cchName);
|
---|
2316 | else
|
---|
2317 | {
|
---|
2318 | rc = kmk_cc_exp_emit_dyn_variable(ppBlockTail, pchStr, cchName);
|
---|
2319 | if (rc != 0)
|
---|
2320 | return rc;
|
---|
2321 | }
|
---|
2322 | }
|
---|
2323 | pchStr += cchName + 1;
|
---|
2324 | cchStr -= cchName + (cDepth == 0);
|
---|
2325 | }
|
---|
2326 | else
|
---|
2327 | {
|
---|
2328 | /* Single character variable name. */
|
---|
2329 | kmk_cc_exp_emit_plain_variable_maybe_sr(ppBlockTail, pchStr, 1);
|
---|
2330 | pchStr++;
|
---|
2331 | cchStr--;
|
---|
2332 | }
|
---|
2333 | }
|
---|
2334 | else
|
---|
2335 | {
|
---|
2336 | error(NULL, _("Unexpected end of string after $"));
|
---|
2337 | break;
|
---|
2338 | }
|
---|
2339 | }
|
---|
2340 | }
|
---|
2341 | else
|
---|
2342 | {
|
---|
2343 | /*
|
---|
2344 | * Nothing more to expand, the remainder is a simple string copy.
|
---|
2345 | */
|
---|
2346 | kmk_cc_exp_emit_copy_string(ppBlockTail, pchStr, cchStr);
|
---|
2347 | break;
|
---|
2348 | }
|
---|
2349 | }
|
---|
2350 |
|
---|
2351 | /*
|
---|
2352 | * Emit final instruction.
|
---|
2353 | */
|
---|
2354 | kmk_cc_exp_emit_return(ppBlockTail);
|
---|
2355 | return 0;
|
---|
2356 | }
|
---|
2357 |
|
---|
2358 |
|
---|
2359 | /**
|
---|
2360 | * Initializes string expansion program statistics.
|
---|
2361 | * @param pStats Pointer to the statistics structure to init.
|
---|
2362 | */
|
---|
2363 | static void kmk_cc_exp_stats_init(PKMKCCEXPSTATS pStats)
|
---|
2364 | {
|
---|
2365 | pStats->cchAvg = 0;
|
---|
2366 | }
|
---|
2367 |
|
---|
2368 |
|
---|
2369 | /**
|
---|
2370 | * Compiles a string expansion subprogram.
|
---|
2371 | *
|
---|
2372 | * The caller typically make a call to kmk_cc_block_get_next_ptr after this
|
---|
2373 | * function returns to figure out where to continue executing.
|
---|
2374 | *
|
---|
2375 | * @returns 0 on success, non-zero on failure.
|
---|
2376 | * @param ppBlockTail Pointer to the allocator tail pointer.
|
---|
2377 | * @param pchStr Pointer to the string to compile an expansion
|
---|
2378 | * program for (ASSUMED to be valid for the
|
---|
2379 | * lifetime of the program).
|
---|
2380 | * @param cchStr The length of the string to compile. Expected to
|
---|
2381 | * be at least on char long.
|
---|
2382 | * @param pSubprog The subprogram structure to initialize.
|
---|
2383 | */
|
---|
2384 | static int kmk_cc_exp_compile_subprog(PKMKCCBLOCK *ppBlockTail, const char *pchStr, uint32_t cchStr, PKMKCCEXPSUBPROG pSubprog)
|
---|
2385 | {
|
---|
2386 | KMK_CC_ASSERT(cchStr > 0);
|
---|
2387 | pSubprog->pFirstInstr = (PKMKCCEXPCORE)kmk_cc_block_get_next_ptr(*ppBlockTail);
|
---|
2388 | kmk_cc_exp_stats_init(&pSubprog->Stats);
|
---|
2389 | return kmk_cc_exp_compile_common(ppBlockTail, pchStr, cchStr);
|
---|
2390 | }
|
---|
2391 |
|
---|
2392 |
|
---|
2393 | /**
|
---|
2394 | * Compiles a string expansion program.
|
---|
2395 | *
|
---|
2396 | * @returns Pointer to the program on success, NULL on failure.
|
---|
2397 | * @param pchStr Pointer to the string to compile an expansion
|
---|
2398 | * program for (ASSUMED to be valid for the
|
---|
2399 | * lifetime of the program).
|
---|
2400 | * @param cchStr The length of the string to compile. Expected to
|
---|
2401 | * be at least on char long.
|
---|
2402 | */
|
---|
2403 | static PKMKCCEXPPROG kmk_cc_exp_compile(const char *pchStr, uint32_t cchStr)
|
---|
2404 | {
|
---|
2405 | /*
|
---|
2406 | * Estimate block size, allocate one and initialize it.
|
---|
2407 | */
|
---|
2408 | PKMKCCEXPPROG pProg;
|
---|
2409 | PKMKCCBLOCK pBlock;
|
---|
2410 | pProg = kmk_cc_block_alloc_first(&pBlock, sizeof(*pProg),
|
---|
2411 | (kmk_cc_count_dollars(pchStr, cchStr) + 4) * 8);
|
---|
2412 | if (pProg)
|
---|
2413 | {
|
---|
2414 | pProg->pBlockTail = pBlock;
|
---|
2415 | pProg->pFirstInstr = (PKMKCCEXPCORE)kmk_cc_block_get_next_ptr(pBlock);
|
---|
2416 | kmk_cc_exp_stats_init(&pProg->Stats);
|
---|
2417 | pProg->cRefs = 1;
|
---|
2418 | #ifdef KMK_CC_STRICT
|
---|
2419 | pProg->uInputHash = kmk_cc_debug_string_hash_n(0, pchStr, cchStr);
|
---|
2420 | #endif
|
---|
2421 |
|
---|
2422 | /*
|
---|
2423 | * Join forces with the subprogram compilation code.
|
---|
2424 | */
|
---|
2425 | if (kmk_cc_exp_compile_common(&pProg->pBlockTail, pchStr, cchStr) == 0)
|
---|
2426 | {
|
---|
2427 | #ifdef KMK_CC_WITH_STATS
|
---|
2428 | pBlock = pProg->pBlockTail;
|
---|
2429 | if (!pBlock->pNext)
|
---|
2430 | g_cSingleBlockExpProgs++;
|
---|
2431 | else if (!pBlock->pNext->pNext)
|
---|
2432 | g_cTwoBlockExpProgs++;
|
---|
2433 | else
|
---|
2434 | g_cMultiBlockExpProgs++;
|
---|
2435 | for (; pBlock; pBlock = pBlock->pNext)
|
---|
2436 | {
|
---|
2437 | g_cBlocksAllocatedExpProgs++;
|
---|
2438 | g_cbAllocatedExpProgs += pBlock->cbBlock;
|
---|
2439 | g_cbUnusedMemExpProgs += pBlock->cbBlock - pBlock->offNext;
|
---|
2440 | }
|
---|
2441 | #endif
|
---|
2442 | return pProg;
|
---|
2443 | }
|
---|
2444 | kmk_cc_block_free_list(pProg->pBlockTail);
|
---|
2445 | }
|
---|
2446 | return NULL;
|
---|
2447 | }
|
---|
2448 |
|
---|
2449 |
|
---|
2450 | /**
|
---|
2451 | * Updates the recursive_without_dollar member of a variable structure.
|
---|
2452 | *
|
---|
2453 | * This avoid compiling string expansion programs with only a CopyString
|
---|
2454 | * instruction. By setting recursive_without_dollar to 1, code calling
|
---|
2455 | * kmk_cc_compile_variable_for_expand and kmk_exec_expand_to_var_buf will
|
---|
2456 | * instead treat start treating it as a simple variable, which is faster.
|
---|
2457 | *
|
---|
2458 | * @returns The updated recursive_without_dollar value.
|
---|
2459 | * @param pVar Pointer to the variable.
|
---|
2460 | */
|
---|
2461 | static int kmk_cc_update_variable_recursive_without_dollar(struct variable *pVar)
|
---|
2462 | {
|
---|
2463 | int fValue;
|
---|
2464 | KMK_CC_ASSERT(pVar->recursive_without_dollar == 0);
|
---|
2465 |
|
---|
2466 | if (memchr(pVar->value, '$', pVar->value_length))
|
---|
2467 | fValue = -1;
|
---|
2468 | else
|
---|
2469 | fValue = 1;
|
---|
2470 | pVar->recursive_without_dollar = fValue;
|
---|
2471 |
|
---|
2472 | return fValue;
|
---|
2473 | }
|
---|
2474 |
|
---|
2475 |
|
---|
2476 | /**
|
---|
2477 | * Compiles a variable for string expansion.
|
---|
2478 | *
|
---|
2479 | * @returns Pointer to the string expansion program on success, NULL if no
|
---|
2480 | * program was created.
|
---|
2481 | * @param pVar Pointer to the variable.
|
---|
2482 | */
|
---|
2483 | struct kmk_cc_expandprog *kmk_cc_compile_variable_for_expand(struct variable *pVar)
|
---|
2484 | {
|
---|
2485 | KMK_CC_ASSERT(strlen(pVar->value) == pVar->value_length);
|
---|
2486 | KMK_CC_ASSERT(!pVar->expandprog);
|
---|
2487 | KMK_CC_ASSERT(pVar->recursive_without_dollar <= 0);
|
---|
2488 |
|
---|
2489 | if ( !pVar->expandprog
|
---|
2490 | && pVar->recursive)
|
---|
2491 | {
|
---|
2492 | if ( pVar->recursive_without_dollar < 0
|
---|
2493 | || ( pVar->recursive_without_dollar == 0
|
---|
2494 | && kmk_cc_update_variable_recursive_without_dollar(pVar) < 0) )
|
---|
2495 | {
|
---|
2496 | pVar->expandprog = kmk_cc_exp_compile(pVar->value, pVar->value_length);
|
---|
2497 | g_cVarForExpandCompilations++;
|
---|
2498 | }
|
---|
2499 | }
|
---|
2500 | return pVar->expandprog;
|
---|
2501 | }
|
---|
2502 |
|
---|
2503 |
|
---|
2504 | /**
|
---|
2505 | * String expansion execution worker for outputting a variable.
|
---|
2506 | *
|
---|
2507 | * @returns The new variable buffer position.
|
---|
2508 | * @param pVar The variable to reference.
|
---|
2509 | * @param pchDst The current variable buffer position.
|
---|
2510 | */
|
---|
2511 | static char *kmk_exec_expand_worker_reference_variable(struct variable *pVar, char *pchDst)
|
---|
2512 | {
|
---|
2513 | if (pVar->value_length > 0)
|
---|
2514 | {
|
---|
2515 | if (!pVar->recursive || IS_VARIABLE_RECURSIVE_WITHOUT_DOLLAR(pVar))
|
---|
2516 | pchDst = variable_buffer_output(pchDst, pVar->value, pVar->value_length);
|
---|
2517 | else
|
---|
2518 | pchDst = reference_recursive_variable(pchDst, pVar);
|
---|
2519 | }
|
---|
2520 | else if (pVar->append)
|
---|
2521 | pchDst = reference_recursive_variable(pchDst, pVar);
|
---|
2522 | return pchDst;
|
---|
2523 | }
|
---|
2524 |
|
---|
2525 |
|
---|
2526 | /**
|
---|
2527 | * Executes a stream string expansion instructions, outputting to the current
|
---|
2528 | * varaible buffer.
|
---|
2529 | *
|
---|
2530 | * @returns The new variable buffer position.
|
---|
2531 | * @param pInstrCore The instruction to start executing at.
|
---|
2532 | * @param pchDst The current variable buffer position.
|
---|
2533 | */
|
---|
2534 | static char *kmk_exec_expand_instruction_stream_to_var_buf(PKMKCCEXPCORE pInstrCore, char *pchDst)
|
---|
2535 | {
|
---|
2536 | for (;;)
|
---|
2537 | {
|
---|
2538 | switch (pInstrCore->enmOpcode)
|
---|
2539 | {
|
---|
2540 | case kKmkCcExpInstr_CopyString:
|
---|
2541 | {
|
---|
2542 | PKMKCCEXPCOPYSTRING pInstr = (PKMKCCEXPCOPYSTRING)pInstrCore;
|
---|
2543 | pchDst = variable_buffer_output(pchDst, pInstr->pachSrc, pInstr->cchCopy);
|
---|
2544 |
|
---|
2545 | pInstrCore = &(pInstr + 1)->Core;
|
---|
2546 | break;
|
---|
2547 | }
|
---|
2548 |
|
---|
2549 | case kKmkCcExpInstr_PlainVariable:
|
---|
2550 | {
|
---|
2551 | PKMKCCEXPPLAINVAR pInstr = (PKMKCCEXPPLAINVAR)pInstrCore;
|
---|
2552 | struct variable *pVar = lookup_variable_strcached(pInstr->pszName);
|
---|
2553 | if (pVar)
|
---|
2554 | pchDst = kmk_exec_expand_worker_reference_variable(pVar, pchDst);
|
---|
2555 | else
|
---|
2556 | warn_undefined(pInstr->pszName, strcache2_get_len(&variable_strcache, pInstr->pszName));
|
---|
2557 |
|
---|
2558 | pInstrCore = &(pInstr + 1)->Core;
|
---|
2559 | break;
|
---|
2560 | }
|
---|
2561 |
|
---|
2562 | case kKmkCcExpInstr_DynamicVariable:
|
---|
2563 | {
|
---|
2564 | PKMKCCEXPDYNVAR pInstr = (PKMKCCEXPDYNVAR)pInstrCore;
|
---|
2565 | struct variable *pVar;
|
---|
2566 | uint32_t cchName;
|
---|
2567 | char *pszName = kmk_exec_expand_subprog_to_tmp(&pInstr->Subprog, &cchName);
|
---|
2568 | char *pszColon = (char *)memchr(pszName, ':', cchName);
|
---|
2569 | char *pszEqual;
|
---|
2570 | if ( pszColon == NULL
|
---|
2571 | || (pszEqual = (char *)memchr(pszColon + 1, '=', &pszName[cchName] - pszColon - 1)) == NULL
|
---|
2572 | || pszEqual == pszColon + 1)
|
---|
2573 | {
|
---|
2574 | pVar = lookup_variable(pszName, cchName);
|
---|
2575 | if (pVar)
|
---|
2576 | pchDst = kmk_exec_expand_worker_reference_variable(pVar, pchDst);
|
---|
2577 | else
|
---|
2578 | warn_undefined(pszName, cchName);
|
---|
2579 | }
|
---|
2580 | else if (pszColon != pszName)
|
---|
2581 | {
|
---|
2582 | /*
|
---|
2583 | * Oh, we have to do search and replace. How tedious.
|
---|
2584 | * Since the variable name is a temporary buffer, we can transform
|
---|
2585 | * the strings into proper search and replacement patterns directly.
|
---|
2586 | */
|
---|
2587 | pVar = lookup_variable(pszName, pszColon - pszName);
|
---|
2588 | if (pVar)
|
---|
2589 | {
|
---|
2590 | char const *pszExpandedVarValue = pVar->recursive ? recursively_expand(pVar) : pVar->value;
|
---|
2591 | char *pszSearchPat = pszColon + 1;
|
---|
2592 | char *pszReplacePat = pszEqual + 1;
|
---|
2593 | const char *pchPctSearchPat;
|
---|
2594 | const char *pchPctReplacePat;
|
---|
2595 |
|
---|
2596 | *pszEqual = '\0';
|
---|
2597 | pchPctSearchPat = find_percent(pszSearchPat);
|
---|
2598 | pchPctReplacePat = find_percent(pszReplacePat);
|
---|
2599 |
|
---|
2600 | if (!pchPctReplacePat)
|
---|
2601 | {
|
---|
2602 | if (pszReplacePat[-2] != '\0') /* On the offchance that a pct was unquoted by find_percent. */
|
---|
2603 | {
|
---|
2604 | memmove(pszName + 1, pszSearchPat, pszReplacePat - pszSearchPat);
|
---|
2605 | if (pchPctSearchPat)
|
---|
2606 | pchPctSearchPat -= pszSearchPat - &pszName[1];
|
---|
2607 | pszSearchPat = &pszName[1];
|
---|
2608 | }
|
---|
2609 | pchPctReplacePat = --pszReplacePat;
|
---|
2610 | *pszReplacePat = '%';
|
---|
2611 | }
|
---|
2612 |
|
---|
2613 | if (!pchPctSearchPat)
|
---|
2614 | {
|
---|
2615 | pchPctSearchPat = --pszSearchPat;
|
---|
2616 | *pszSearchPat = '%';
|
---|
2617 | }
|
---|
2618 |
|
---|
2619 | pchDst = patsubst_expand_pat(pchDst, pszExpandedVarValue,
|
---|
2620 | pszSearchPat, pszReplacePat,
|
---|
2621 | pchPctSearchPat, pchPctReplacePat);
|
---|
2622 |
|
---|
2623 | if (pVar->recursive)
|
---|
2624 | free((void *)pszExpandedVarValue);
|
---|
2625 | }
|
---|
2626 | else
|
---|
2627 | warn_undefined(pszName, pszColon - pszName);
|
---|
2628 | }
|
---|
2629 | free(pszName);
|
---|
2630 |
|
---|
2631 | pInstrCore = pInstr->pNext;
|
---|
2632 | break;
|
---|
2633 | }
|
---|
2634 |
|
---|
2635 |
|
---|
2636 | case kKmkCcExpInstr_SearchAndReplacePlainVariable:
|
---|
2637 | {
|
---|
2638 | PKMKCCEXPSRPLAINVAR pInstr = (PKMKCCEXPSRPLAINVAR)pInstrCore;
|
---|
2639 | struct variable *pVar = lookup_variable_strcached(pInstr->pszName);
|
---|
2640 | if (pVar)
|
---|
2641 | {
|
---|
2642 | char const *pszExpandedVarValue = pVar->recursive ? recursively_expand(pVar) : pVar->value;
|
---|
2643 | pchDst = patsubst_expand_pat(pchDst,
|
---|
2644 | pszExpandedVarValue,
|
---|
2645 | pInstr->pszSearchPattern,
|
---|
2646 | pInstr->pszReplacePattern,
|
---|
2647 | &pInstr->pszSearchPattern[pInstr->offPctSearchPattern],
|
---|
2648 | &pInstr->pszReplacePattern[pInstr->offPctReplacePattern]);
|
---|
2649 | if (pVar->recursive)
|
---|
2650 | free((void *)pszExpandedVarValue);
|
---|
2651 | }
|
---|
2652 | else
|
---|
2653 | warn_undefined(pInstr->pszName, strcache2_get_len(&variable_strcache, pInstr->pszName));
|
---|
2654 |
|
---|
2655 | pInstrCore = pInstr->pNext;
|
---|
2656 | break;
|
---|
2657 | }
|
---|
2658 |
|
---|
2659 | case kKmkCcExpInstr_PlainFunction:
|
---|
2660 | {
|
---|
2661 | PKMKCCEXPPLAINFUNC pInstr = (PKMKCCEXPPLAINFUNC)pInstrCore;
|
---|
2662 | uint32_t iArg;
|
---|
2663 | if (!pInstr->FnCore.fDirty)
|
---|
2664 | {
|
---|
2665 | #ifdef KMK_CC_STRICT
|
---|
2666 | uint32_t uCrcBefore = 0;
|
---|
2667 | uint32_t uCrcAfter = 0;
|
---|
2668 | iArg = pInstr->FnCore.cArgs;
|
---|
2669 | while (iArg-- > 0)
|
---|
2670 | uCrcBefore = kmk_cc_debug_string_hash(uCrcBefore, pInstr->apszArgs[iArg]);
|
---|
2671 | #endif
|
---|
2672 |
|
---|
2673 | pchDst = pInstr->FnCore.pfnFunction(pchDst, (char **)&pInstr->apszArgs[0], pInstr->FnCore.pszFuncName);
|
---|
2674 |
|
---|
2675 | #ifdef KMK_CC_STRICT
|
---|
2676 | iArg = pInstr->FnCore.cArgs;
|
---|
2677 | while (iArg-- > 0)
|
---|
2678 | uCrcAfter = kmk_cc_debug_string_hash(uCrcAfter, pInstr->apszArgs[iArg]);
|
---|
2679 | KMK_CC_ASSERT(uCrcBefore == uCrcAfter);
|
---|
2680 | #endif
|
---|
2681 | }
|
---|
2682 | else
|
---|
2683 | {
|
---|
2684 | char **papszShadowArgs = xmalloc((pInstr->FnCore.cArgs * 2 + 1) * sizeof(papszShadowArgs[0]));
|
---|
2685 | char **papszArgs = &papszShadowArgs[pInstr->FnCore.cArgs];
|
---|
2686 |
|
---|
2687 | iArg = pInstr->FnCore.cArgs;
|
---|
2688 | papszArgs[iArg] = NULL;
|
---|
2689 | while (iArg-- > 0)
|
---|
2690 | papszArgs[iArg] = papszShadowArgs[iArg] = xstrdup(pInstr->apszArgs[iArg]);
|
---|
2691 |
|
---|
2692 | pchDst = pInstr->FnCore.pfnFunction(pchDst, (char **)&pInstr->apszArgs[0], pInstr->FnCore.pszFuncName);
|
---|
2693 |
|
---|
2694 | iArg = pInstr->FnCore.cArgs;
|
---|
2695 | while (iArg-- > 0)
|
---|
2696 | free(papszShadowArgs[iArg]);
|
---|
2697 | free(papszShadowArgs);
|
---|
2698 | }
|
---|
2699 |
|
---|
2700 | pInstrCore = pInstr->FnCore.pNext;
|
---|
2701 | break;
|
---|
2702 | }
|
---|
2703 |
|
---|
2704 | case kKmkCcExpInstr_DynamicFunction:
|
---|
2705 | {
|
---|
2706 | PKMKCCEXPDYNFUNC pInstr = (PKMKCCEXPDYNFUNC)pInstrCore;
|
---|
2707 | char **papszArgsShadow = xmalloc( (pInstr->FnCore.cArgs * 2 + 1) * sizeof(char *));
|
---|
2708 | char **papszArgs = &papszArgsShadow[pInstr->FnCore.cArgs];
|
---|
2709 | uint32_t iArg;
|
---|
2710 |
|
---|
2711 | if (!pInstr->FnCore.fDirty)
|
---|
2712 | {
|
---|
2713 | #ifdef KMK_CC_STRICT
|
---|
2714 | uint32_t uCrcBefore = 0;
|
---|
2715 | uint32_t uCrcAfter = 0;
|
---|
2716 | #endif
|
---|
2717 | iArg = pInstr->FnCore.cArgs;
|
---|
2718 | papszArgs[iArg] = NULL;
|
---|
2719 | while (iArg-- > 0)
|
---|
2720 | {
|
---|
2721 | char *pszArg;
|
---|
2722 | if (pInstr->aArgs[iArg].fSubprog)
|
---|
2723 | pszArg = kmk_exec_expand_subprog_to_tmp(&pInstr->aArgs[iArg].u.Subprog, NULL);
|
---|
2724 | else
|
---|
2725 | pszArg = (char *)pInstr->aArgs[iArg].u.Plain.psz;
|
---|
2726 | papszArgsShadow[iArg] = pszArg;
|
---|
2727 | papszArgs[iArg] = pszArg;
|
---|
2728 | #ifdef KMK_CC_STRICT
|
---|
2729 | uCrcBefore = kmk_cc_debug_string_hash(uCrcBefore, pszArg);
|
---|
2730 | #endif
|
---|
2731 | }
|
---|
2732 | pchDst = pInstr->FnCore.pfnFunction(pchDst, papszArgs, pInstr->FnCore.pszFuncName);
|
---|
2733 |
|
---|
2734 | iArg = pInstr->FnCore.cArgs;
|
---|
2735 | while (iArg-- > 0)
|
---|
2736 | {
|
---|
2737 | #ifdef KMK_CC_STRICT
|
---|
2738 | KMK_CC_ASSERT(papszArgsShadow[iArg] == papszArgs[iArg]);
|
---|
2739 | uCrcAfter = kmk_cc_debug_string_hash(uCrcAfter, papszArgsShadow[iArg]);
|
---|
2740 | #endif
|
---|
2741 | if (pInstr->aArgs[iArg].fSubprog)
|
---|
2742 | free(papszArgsShadow[iArg]);
|
---|
2743 | }
|
---|
2744 | KMK_CC_ASSERT(uCrcBefore == uCrcAfter);
|
---|
2745 | }
|
---|
2746 | else
|
---|
2747 | {
|
---|
2748 | iArg = pInstr->FnCore.cArgs;
|
---|
2749 | papszArgs[iArg] = NULL;
|
---|
2750 | while (iArg-- > 0)
|
---|
2751 | {
|
---|
2752 | char *pszArg;
|
---|
2753 | if (pInstr->aArgs[iArg].fSubprog)
|
---|
2754 | pszArg = kmk_exec_expand_subprog_to_tmp(&pInstr->aArgs[iArg].u.Subprog, NULL);
|
---|
2755 | else
|
---|
2756 | pszArg = xstrdup(pInstr->aArgs[iArg].u.Plain.psz);
|
---|
2757 | papszArgsShadow[iArg] = pszArg;
|
---|
2758 | papszArgs[iArg] = pszArg;
|
---|
2759 | }
|
---|
2760 |
|
---|
2761 | pchDst = pInstr->FnCore.pfnFunction(pchDst, papszArgs, pInstr->FnCore.pszFuncName);
|
---|
2762 |
|
---|
2763 | iArg = pInstr->FnCore.cArgs;
|
---|
2764 | while (iArg-- > 0)
|
---|
2765 | free(papszArgsShadow[iArg]);
|
---|
2766 | }
|
---|
2767 | free(papszArgsShadow);
|
---|
2768 |
|
---|
2769 | pInstrCore = pInstr->FnCore.pNext;
|
---|
2770 | break;
|
---|
2771 | }
|
---|
2772 |
|
---|
2773 | case kKmkCcExpInstr_Jump:
|
---|
2774 | {
|
---|
2775 | PKMKCCEXPJUMP pInstr = (PKMKCCEXPJUMP)pInstrCore;
|
---|
2776 | pInstrCore = pInstr->pNext;
|
---|
2777 | break;
|
---|
2778 | }
|
---|
2779 |
|
---|
2780 | case kKmkCcExpInstr_Return:
|
---|
2781 | return pchDst;
|
---|
2782 |
|
---|
2783 | default:
|
---|
2784 | fatal(NULL, _("Unknown string expansion opcode: %d (%#x)"),
|
---|
2785 | (int)pInstrCore->enmOpcode, (int)pInstrCore->enmOpcode);
|
---|
2786 | return NULL;
|
---|
2787 | }
|
---|
2788 | }
|
---|
2789 | }
|
---|
2790 |
|
---|
2791 |
|
---|
2792 | /**
|
---|
2793 | * Updates the string expansion statistics.
|
---|
2794 | *
|
---|
2795 | * @param pStats The statistics structure to update.
|
---|
2796 | * @param cchResult The result lenght.
|
---|
2797 | */
|
---|
2798 | void kmk_cc_exp_stats_update(PKMKCCEXPSTATS pStats, uint32_t cchResult)
|
---|
2799 | {
|
---|
2800 | /*
|
---|
2801 | * The average is simplified and not an exact average for every
|
---|
2802 | * expansion that has taken place.
|
---|
2803 | */
|
---|
2804 | pStats->cchAvg = (pStats->cchAvg * 7 + cchResult) / 8;
|
---|
2805 | }
|
---|
2806 |
|
---|
2807 |
|
---|
2808 | /**
|
---|
2809 | * Execute a string expansion subprogram, outputting to a new heap buffer.
|
---|
2810 | *
|
---|
2811 | * @returns Pointer to the output buffer (hand to free when done).
|
---|
2812 | * @param pSubprog The subprogram to execute.
|
---|
2813 | * @param pcchResult Where to return the size of the result. Optional.
|
---|
2814 | */
|
---|
2815 | static char *kmk_exec_expand_subprog_to_tmp(PKMKCCEXPSUBPROG pSubprog, uint32_t *pcchResult)
|
---|
2816 | {
|
---|
2817 | char *pchOldVarBuf;
|
---|
2818 | unsigned int cbOldVarBuf;
|
---|
2819 | char *pchDst;
|
---|
2820 | char *pszResult;
|
---|
2821 | uint32_t cchResult;
|
---|
2822 |
|
---|
2823 | /*
|
---|
2824 | * Temporarily replace the variable buffer while executing the instruction
|
---|
2825 | * stream for this subprogram.
|
---|
2826 | */
|
---|
2827 | pchDst = install_variable_buffer_with_hint(&pchOldVarBuf, &cbOldVarBuf,
|
---|
2828 | pSubprog->Stats.cchAvg ? pSubprog->Stats.cchAvg + 32 : 256);
|
---|
2829 |
|
---|
2830 | pchDst = kmk_exec_expand_instruction_stream_to_var_buf(pSubprog->pFirstInstr, pchDst);
|
---|
2831 |
|
---|
2832 | /* Ensure that it's terminated. */
|
---|
2833 | pchDst = variable_buffer_output(pchDst, "\0", 1) - 1;
|
---|
2834 |
|
---|
2835 | /* Grab the result buffer before restoring the previous one. */
|
---|
2836 | pszResult = variable_buffer;
|
---|
2837 | cchResult = (uint32_t)(pchDst - pszResult);
|
---|
2838 | if (pcchResult)
|
---|
2839 | *pcchResult = cchResult;
|
---|
2840 | kmk_cc_exp_stats_update(&pSubprog->Stats, cchResult);
|
---|
2841 |
|
---|
2842 | variable_buffer = pchOldVarBuf;
|
---|
2843 | variable_buffer_length = cbOldVarBuf;
|
---|
2844 |
|
---|
2845 | return pszResult;
|
---|
2846 | }
|
---|
2847 |
|
---|
2848 |
|
---|
2849 | /**
|
---|
2850 | * Execute a string expansion program, outputting to the current variable
|
---|
2851 | * buffer.
|
---|
2852 | *
|
---|
2853 | * @returns New variable buffer position.
|
---|
2854 | * @param pProg The program to execute.
|
---|
2855 | * @param pchDst The current varaible buffer position.
|
---|
2856 | */
|
---|
2857 | static char *kmk_exec_expand_prog_to_var_buf(PKMKCCEXPPROG pProg, char *pchDst)
|
---|
2858 | {
|
---|
2859 | uint32_t cchResult;
|
---|
2860 | uint32_t offStart = (uint32_t)(pchDst - variable_buffer);
|
---|
2861 |
|
---|
2862 | if (pProg->Stats.cchAvg >= variable_buffer_length - offStart)
|
---|
2863 | pchDst = ensure_variable_buffer_space(pchDst, offStart + pProg->Stats.cchAvg + 32);
|
---|
2864 |
|
---|
2865 | KMK_CC_ASSERT(pProg->cRefs > 0);
|
---|
2866 | pProg->cRefs++;
|
---|
2867 |
|
---|
2868 | pchDst = kmk_exec_expand_instruction_stream_to_var_buf(pProg->pFirstInstr, pchDst);
|
---|
2869 |
|
---|
2870 | pProg->cRefs--;
|
---|
2871 | KMK_CC_ASSERT(pProg->cRefs > 0);
|
---|
2872 |
|
---|
2873 | cchResult = (uint32_t)(pchDst - variable_buffer);
|
---|
2874 | KMK_CC_ASSERT(cchResult >= offStart);
|
---|
2875 | cchResult -= offStart;
|
---|
2876 | kmk_cc_exp_stats_update(&pProg->Stats, cchResult);
|
---|
2877 | g_cVarForExpandExecs++;
|
---|
2878 |
|
---|
2879 | return pchDst;
|
---|
2880 | }
|
---|
2881 |
|
---|
2882 |
|
---|
2883 | /**
|
---|
2884 | * Expands a variable into a variable buffer using its expandprog.
|
---|
2885 | *
|
---|
2886 | * @returns The new variable buffer position.
|
---|
2887 | * @param pVar Pointer to the variable. Must have a program.
|
---|
2888 | * @param pchDst Pointer to the current variable buffer position.
|
---|
2889 | */
|
---|
2890 | char *kmk_exec_expand_to_var_buf(struct variable *pVar, char *pchDst)
|
---|
2891 | {
|
---|
2892 | KMK_CC_ASSERT(pVar->expandprog);
|
---|
2893 | KMK_CC_ASSERT(pVar->expandprog->uInputHash == kmk_cc_debug_string_hash(0, pVar->value));
|
---|
2894 | return kmk_exec_expand_prog_to_var_buf(pVar->expandprog, pchDst);
|
---|
2895 | }
|
---|
2896 |
|
---|
2897 |
|
---|
2898 |
|
---|
2899 |
|
---|
2900 |
|
---|
2901 | /*
|
---|
2902 | *
|
---|
2903 | * Makefile evaluation programs.
|
---|
2904 | * Makefile evaluation programs.
|
---|
2905 | * Makefile evaluation programs.
|
---|
2906 | *
|
---|
2907 | */
|
---|
2908 |
|
---|
2909 | static size_t kmk_cc_eval_detect_eol_style(char *pchFirst, char *pchSecond, const char *pszContent, size_t cchContent)
|
---|
2910 | {
|
---|
2911 | /* Look for LF first. */
|
---|
2912 | const char *pszTmp = (const char *)memchr(pszContent, '\n', cchContent);
|
---|
2913 | if (pszTmp)
|
---|
2914 | {
|
---|
2915 | /* CRLF? */
|
---|
2916 | if (pszTmp != pszContent && pszTmp[-1] == '\r')
|
---|
2917 | {
|
---|
2918 | *pchFirst = '\r';
|
---|
2919 | *pchSecond = '\n';
|
---|
2920 | return 2;
|
---|
2921 | }
|
---|
2922 |
|
---|
2923 | /* No, LF or LFCR. (pszContent is zero terminated, so no bounds checking necessary.) */
|
---|
2924 | *pchFirst = '\n';
|
---|
2925 | if (pszTmp[1] != '\r')
|
---|
2926 | {
|
---|
2927 | *pchSecond = 0;
|
---|
2928 | return 1;
|
---|
2929 | }
|
---|
2930 | *pchSecond = '\r';
|
---|
2931 | return 2;
|
---|
2932 | }
|
---|
2933 |
|
---|
2934 | /* Probably no EOLs here. */
|
---|
2935 | if (memchr(pszContent, '\r', cchContent) == NULL)
|
---|
2936 | {
|
---|
2937 | *pchSecond = *pchFirst = 0;
|
---|
2938 | return 0;
|
---|
2939 | }
|
---|
2940 |
|
---|
2941 | /* kind of unlikely */
|
---|
2942 | *pchFirst = '\r';
|
---|
2943 | *pchSecond = 0;
|
---|
2944 | return 1;
|
---|
2945 | }
|
---|
2946 |
|
---|
2947 |
|
---|
2948 | #if 0
|
---|
2949 | /**
|
---|
2950 | * Checks whether we've got an EOL escape sequence or not.
|
---|
2951 | *
|
---|
2952 | * @returns non-zero if escaped EOL, 0 if not (i.e. actual EOL).
|
---|
2953 | * @param pszContent The string pointer @a offEol is relative to.
|
---|
2954 | * @param offEol The offset of the first EOL char.
|
---|
2955 | */
|
---|
2956 | static unsigned kmk_cc_eval_is_eol_escape_seq(const char *pszContent, size_t offEol)
|
---|
2957 | {
|
---|
2958 | /* The caller has already checked out two backslashes. */
|
---|
2959 | size_t offFirstBackslash = offEol;
|
---|
2960 | KMK_CC_ASSERT(offFirstBackslash >= 2);
|
---|
2961 | offFirstBackslash -= 2;
|
---|
2962 |
|
---|
2963 | /* Find the first backslash. */
|
---|
2964 | while (offFirstBackslash > 0 && pszContent[offFirstBackslash - 1] == '\\')
|
---|
2965 | offFirstBackslash--;
|
---|
2966 |
|
---|
2967 | /* Odd number -> escaped EOL; Even number -> real EOL; */
|
---|
2968 | return (offEol - offFirstBackslash) & 1;
|
---|
2969 | }
|
---|
2970 | #endif
|
---|
2971 |
|
---|
2972 |
|
---|
2973 |
|
---|
2974 | /**
|
---|
2975 | * Tokens (for KMKCCEVALWORD).
|
---|
2976 | */
|
---|
2977 | typedef enum kmk_cc_eval_token
|
---|
2978 | {
|
---|
2979 | /** Invalid token value 0. */
|
---|
2980 | kKmkCcEvalToken_Invalid = 0,
|
---|
2981 |
|
---|
2982 | /** Plain word. */
|
---|
2983 | kKmkCcEvalToken_WordPlain,
|
---|
2984 | /** Plain word with one or more escaped EOLs. (Currently not possible.) */
|
---|
2985 | kKmkCcEvalToken_WordPlainWithEscEol,
|
---|
2986 | /** Word that maybe in need of expanding. */
|
---|
2987 | kKmkCcEvalToken_WordWithDollar,
|
---|
2988 | /** Word that is in need of expanding and include one or more escped EOLs. */
|
---|
2989 | kKmkCcEvalToken_WordWithDollarAndEscEol,
|
---|
2990 |
|
---|
2991 | /** Recipe colon. */
|
---|
2992 | kKmkCcEvalToken_colon,
|
---|
2993 | /** Recipe double colon. */
|
---|
2994 | kKmkCcEvalToken_double_colon,
|
---|
2995 | /** Recipe multi target plus. */
|
---|
2996 | kKmkCcEvalToken_plus,
|
---|
2997 | /** Recipe multi target plus-maybe (+|). */
|
---|
2998 | kKmkCcEvalToken_plus_maybe,
|
---|
2999 | /** Recipe semicolon. */
|
---|
3000 | kKmkCcEvalToken_semicolon,
|
---|
3001 |
|
---|
3002 | /** End of valid token values (not included). */
|
---|
3003 | kKmkCcEvalToken_End
|
---|
3004 | } KMKCCEVALTOKEN;
|
---|
3005 |
|
---|
3006 | /**
|
---|
3007 | * A tokenized word.
|
---|
3008 | */
|
---|
3009 | typedef struct kmk_cc_eval_word
|
---|
3010 | {
|
---|
3011 | /** The token word (lexeme). */
|
---|
3012 | const char *pchWord;
|
---|
3013 | /** The length of the word (lexeme). */
|
---|
3014 | uint32_t cchWord;
|
---|
3015 | /** The token classification. */
|
---|
3016 | KMKCCEVALTOKEN enmToken;
|
---|
3017 | } KMKCCEVALWORD;
|
---|
3018 | typedef KMKCCEVALWORD *PKMKCCEVALWORD;
|
---|
3019 | typedef KMKCCEVALWORD const *PCKMKCCEVALWORD;
|
---|
3020 |
|
---|
3021 |
|
---|
3022 | /**
|
---|
3023 | * Escaped end-of-line sequence in the current line.
|
---|
3024 | */
|
---|
3025 | typedef struct KMKCCEVALESCEOL
|
---|
3026 | {
|
---|
3027 | /** Offset at which the EOL escape sequence starts for a non-command line. */
|
---|
3028 | size_t offEsc;
|
---|
3029 | /** Offset of the newline sequence. */
|
---|
3030 | size_t offEol;
|
---|
3031 | } KMKCCEVALESCEOL;
|
---|
3032 | typedef KMKCCEVALESCEOL *PKMKCCEVALESCEOL;
|
---|
3033 |
|
---|
3034 |
|
---|
3035 | /**
|
---|
3036 | * String copy segment.
|
---|
3037 | */
|
---|
3038 | typedef struct KMKCCEVALSTRCPYSEG
|
---|
3039 | {
|
---|
3040 | /** The start. */
|
---|
3041 | const char *pchSrc;
|
---|
3042 | /** The number of chars to copy and whether to prepend space.
|
---|
3043 | * Negative values indicates that we should prepend a space. */
|
---|
3044 | ssize_t cchSrcAndPrependSpace;
|
---|
3045 | } KMKCCEVALSTRCPYSEG;
|
---|
3046 | typedef KMKCCEVALSTRCPYSEG *PKMKCCEVALSTRCPYSEG;
|
---|
3047 | typedef KMKCCEVALSTRCPYSEG const *PCKMKCCEVALSTRCPYSEG;
|
---|
3048 |
|
---|
3049 |
|
---|
3050 | typedef struct KMKCCEVALCOMPILER
|
---|
3051 | {
|
---|
3052 | /** Pointer to the KMKCCEVALPROG::pBlockTail member. */
|
---|
3053 | PKMKCCBLOCK *ppBlockTail;
|
---|
3054 |
|
---|
3055 | /** @name Line parsing state.
|
---|
3056 | * @{ */
|
---|
3057 | /** Offset of newline escape sequences in the current line.
|
---|
3058 | * This is only applicable if cEscEols is not zero. */
|
---|
3059 | PKMKCCEVALESCEOL paEscEols;
|
---|
3060 | /** The number of number of paEscEols entries we've allocated. */
|
---|
3061 | unsigned cEscEolsAllocated;
|
---|
3062 | /** Number of escaped EOLs (line count - 1). */
|
---|
3063 | unsigned cEscEols;
|
---|
3064 | /** The paEscEols entry corresponding to the current parsing location.
|
---|
3065 | * Still to be seen how accurate this can be made to be. */
|
---|
3066 | unsigned iEscEol;
|
---|
3067 |
|
---|
3068 | /** The current line number for error handling / debugging (1-based). */
|
---|
3069 | unsigned iLine;
|
---|
3070 | /** The start offset (into pchContent) of the current line. */
|
---|
3071 | size_t offLine;
|
---|
3072 | /** Length of the current line, sans the final EOL and comments. */
|
---|
3073 | size_t cchLine;
|
---|
3074 | /** Length of the current line, sans the final EOL but with comments. */
|
---|
3075 | size_t cchLineWithComments;
|
---|
3076 | /** For 'define' only, the start offset of the next line. Modified to the
|
---|
3077 | * line following 'endef'. */
|
---|
3078 | size_t offNext;
|
---|
3079 |
|
---|
3080 | /** The first char in an EOL sequence.
|
---|
3081 | * We ASSUMES that this char won't appear in any other sequence in the file,
|
---|
3082 | * thus skipping matching any subsequent chars. */
|
---|
3083 | char chFirstEol;
|
---|
3084 | /** The second char in an EOL sequence, if applicable. */
|
---|
3085 | char chSecondEol;
|
---|
3086 |
|
---|
3087 | /** The length of the EOL sequence. */
|
---|
3088 | size_t cchEolSeq;
|
---|
3089 | /** The minimum length of an esacped EOL sequence (cchEolSeq + 1). */
|
---|
3090 | size_t cchEscEolSeq;
|
---|
3091 |
|
---|
3092 | /** String copy segments. */
|
---|
3093 | PKMKCCEVALSTRCPYSEG paStrCopySegs;
|
---|
3094 | /** The number of segments that has been prepared. */
|
---|
3095 | unsigned cStrCopySegs;
|
---|
3096 | /** The number of segments we've allocated. */
|
---|
3097 | unsigned cStrCopySegsAllocated;
|
---|
3098 | /** @} */
|
---|
3099 |
|
---|
3100 |
|
---|
3101 | /** @name Recipe state.
|
---|
3102 | * @{ */
|
---|
3103 | /** Set if we're working on a recipe. */
|
---|
3104 | PKMKCCEVALRECIPE pRecipe;
|
---|
3105 | /** Set for ignoring recipes without targets (SunOS 4 Make). */
|
---|
3106 | uint8_t fNoTargetRecipe;
|
---|
3107 | /** The command prefix character. */
|
---|
3108 | char chCmdPrefix;
|
---|
3109 | /** @} */
|
---|
3110 |
|
---|
3111 | /** @name Tokenzied words.
|
---|
3112 | * @{ */
|
---|
3113 | unsigned cWords;
|
---|
3114 | unsigned cWordsAllocated;
|
---|
3115 | PKMKCCEVALWORD paWords;
|
---|
3116 | /** @} */
|
---|
3117 |
|
---|
3118 | /** @name Conditionals.
|
---|
3119 | * @{ */
|
---|
3120 | /** Current conditional stack depth. */
|
---|
3121 | unsigned cIfs;
|
---|
3122 | /** The conditional directive stack. */
|
---|
3123 | PKMKCCEVALIFCORE apIfs[KMK_CC_EVAL_MAX_IF_DEPTH];
|
---|
3124 | /** @} */
|
---|
3125 |
|
---|
3126 | /** The program being compiled. */
|
---|
3127 | PKMKCCEVALPROG pEvalProg;
|
---|
3128 | /** Pointer to the content. */
|
---|
3129 | const char *pszContent;
|
---|
3130 | /** The amount of input to parse. */
|
---|
3131 | size_t cchContent;
|
---|
3132 | } KMKCCEVALCOMPILER;
|
---|
3133 | typedef KMKCCEVALCOMPILER *PKMKCCEVALCOMPILER;
|
---|
3134 |
|
---|
3135 |
|
---|
3136 | static void kmk_cc_eval_init_compiler(PKMKCCEVALCOMPILER pCompiler, PKMKCCEVALPROG pEvalProg, unsigned iLine,
|
---|
3137 | const char *pszContent, size_t cchContent)
|
---|
3138 | {
|
---|
3139 | pCompiler->ppBlockTail = &pEvalProg->pBlockTail;
|
---|
3140 |
|
---|
3141 | pCompiler->pRecipe = NULL;
|
---|
3142 | pCompiler->fNoTargetRecipe = 0;
|
---|
3143 | pCompiler->chCmdPrefix = cmd_prefix;
|
---|
3144 |
|
---|
3145 | pCompiler->cWordsAllocated = 0;
|
---|
3146 | pCompiler->paWords = NULL;
|
---|
3147 |
|
---|
3148 | pCompiler->cEscEolsAllocated = 0;
|
---|
3149 | pCompiler->paEscEols = NULL;
|
---|
3150 | pCompiler->iLine = iLine;
|
---|
3151 |
|
---|
3152 | pCompiler->cStrCopySegsAllocated = 0;
|
---|
3153 | pCompiler->paStrCopySegs = NULL;
|
---|
3154 |
|
---|
3155 | pCompiler->cIfs = 0;
|
---|
3156 |
|
---|
3157 | pCompiler->pEvalProg = pEvalProg;
|
---|
3158 | pCompiler->pszContent = pszContent;
|
---|
3159 | pCompiler->cchContent = cchContent;
|
---|
3160 |
|
---|
3161 | /* Detect EOL style. */
|
---|
3162 | pCompiler->cchEolSeq = kmk_cc_eval_detect_eol_style(&pCompiler->chFirstEol, &pCompiler->chSecondEol,
|
---|
3163 | pszContent, cchContent);
|
---|
3164 | pCompiler->cchEscEolSeq = 1 + pCompiler->cchEolSeq;
|
---|
3165 | }
|
---|
3166 |
|
---|
3167 |
|
---|
3168 | static void kmk_cc_eval_delete_compiler(PKMKCCEVALCOMPILER pCompiler)
|
---|
3169 | {
|
---|
3170 | if (pCompiler->paWords)
|
---|
3171 | free(pCompiler->paWords);
|
---|
3172 | if (pCompiler->paEscEols)
|
---|
3173 | free(pCompiler->paEscEols);
|
---|
3174 | }
|
---|
3175 |
|
---|
3176 |
|
---|
3177 | /**
|
---|
3178 | * Translates a makefile source pointer to a line number and offset.
|
---|
3179 | *
|
---|
3180 | * @returns Line number (1-based)
|
---|
3181 | * @param pCompiler The compiler state.
|
---|
3182 | * @param pszWhere There location to translate.
|
---|
3183 | * @param piColumn Where to return the line offset (1-based).
|
---|
3184 | */
|
---|
3185 | static unsigned kmk_cc_eval_translate_location(PKMKCCEVALCOMPILER pCompiler, const char *pchWhere, unsigned *piColumn)
|
---|
3186 | {
|
---|
3187 | unsigned iLine = pCompiler->iLine;
|
---|
3188 | size_t offLine = pCompiler->offLine;
|
---|
3189 | size_t off = pchWhere - pCompiler->pszContent;
|
---|
3190 | unsigned i = 0;
|
---|
3191 | while ( i < pCompiler->cEscEols
|
---|
3192 | && off > pCompiler->paEscEols[i].offEol)
|
---|
3193 | {
|
---|
3194 | offLine = pCompiler->paEscEols[i].offEol + 1 + pCompiler->cchEolSeq;
|
---|
3195 | iLine++;
|
---|
3196 | i++;
|
---|
3197 | }
|
---|
3198 | KMK_CC_ASSERT(off <= pCompiler->cchContent);
|
---|
3199 | if (piColumn)
|
---|
3200 | *piColumn = (unsigned)(off - offLine) + 1;
|
---|
3201 | return iLine;
|
---|
3202 | }
|
---|
3203 |
|
---|
3204 |
|
---|
3205 | static void KMK_CC_FN_NO_RETURN kmk_cc_eval_fatal(PKMKCCEVALCOMPILER pCompiler, const char *pchWhere, const char *pszMsg, ...)
|
---|
3206 | {
|
---|
3207 | va_list va;
|
---|
3208 | log_working_directory(1);
|
---|
3209 |
|
---|
3210 | /*
|
---|
3211 | * If we have a pointer location, use it to figure out the exact line and column.
|
---|
3212 | */
|
---|
3213 | if (pchWhere)
|
---|
3214 | {
|
---|
3215 | unsigned iColumn;
|
---|
3216 | unsigned iLine = kmk_cc_eval_translate_location(pCompiler, pchWhere, &iColumn);
|
---|
3217 |
|
---|
3218 | if (pCompiler->pEvalProg->pszVarName)
|
---|
3219 | fprintf(stderr, "%s:%u:%u: *** fatal parsing error in %s: ",
|
---|
3220 | pCompiler->pEvalProg->pszFilename, iLine, iColumn, pCompiler->pEvalProg->pszVarName);
|
---|
3221 | else
|
---|
3222 | fprintf(stderr, "%s:%u:%u: *** fatal parsing error: ",
|
---|
3223 | pCompiler->pEvalProg->pszFilename, iLine, iColumn);
|
---|
3224 | }
|
---|
3225 | else if (pCompiler->pEvalProg->pszVarName)
|
---|
3226 | fprintf(stderr, "%s:%u: *** fatal parsing error in %s: ",
|
---|
3227 | pCompiler->pEvalProg->pszFilename, pCompiler->iLine, pCompiler->pEvalProg->pszVarName);
|
---|
3228 | else
|
---|
3229 | fprintf(stderr, "%s:%u: *** fatal parsing error: ",
|
---|
3230 | pCompiler->pEvalProg->pszFilename, pCompiler->iLine);
|
---|
3231 |
|
---|
3232 | /*
|
---|
3233 | * Print the message and die.
|
---|
3234 | */
|
---|
3235 | va_start(va, pszMsg);
|
---|
3236 | vfprintf(stderr, pszMsg, va);
|
---|
3237 | va_end(va);
|
---|
3238 | fputs(". Stop.\n", stderr);
|
---|
3239 |
|
---|
3240 | for (;;)
|
---|
3241 | die(2);
|
---|
3242 | }
|
---|
3243 |
|
---|
3244 |
|
---|
3245 | static KMK_CC_FN_NO_RETURN void
|
---|
3246 | kmk_cc_eval_fatal_eol(PKMKCCEVALCOMPILER pCompiler, const char *pchEol, unsigned iLine, size_t offLine)
|
---|
3247 | {
|
---|
3248 | pCompiler->iLine = iLine;
|
---|
3249 | pCompiler->offLine = offLine;
|
---|
3250 |
|
---|
3251 | for (;;)
|
---|
3252 | kmk_cc_eval_fatal(pCompiler, pchEol, "Missing 2nd EOL character: found %#x instead of %#x\n",
|
---|
3253 | pchEol, pCompiler->chSecondEol);
|
---|
3254 | }
|
---|
3255 |
|
---|
3256 |
|
---|
3257 | static void kmk_cc_eval_warn(PKMKCCEVALCOMPILER pCompiler, const char *pchWhere, const char *pszMsg, ...)
|
---|
3258 | {
|
---|
3259 | va_list va;
|
---|
3260 |
|
---|
3261 | log_working_directory(1);
|
---|
3262 |
|
---|
3263 | /*
|
---|
3264 | * If we have a pointer location, use it to figure out the exact line and column.
|
---|
3265 | */
|
---|
3266 | if (pchWhere)
|
---|
3267 | {
|
---|
3268 | unsigned iColumn;
|
---|
3269 | unsigned iLine = kmk_cc_eval_translate_location(pCompiler, pchWhere, &iColumn);
|
---|
3270 |
|
---|
3271 | if (pCompiler->pEvalProg->pszVarName)
|
---|
3272 | fprintf(stderr, "%s:%u:%u: *** warning in %s: ",
|
---|
3273 | pCompiler->pEvalProg->pszFilename, iLine, iColumn, pCompiler->pEvalProg->pszVarName);
|
---|
3274 | else
|
---|
3275 | fprintf(stderr, "%s:%u:%u: *** warning: ",
|
---|
3276 | pCompiler->pEvalProg->pszFilename, iLine, iColumn);
|
---|
3277 | }
|
---|
3278 | else if (pCompiler->pEvalProg->pszVarName)
|
---|
3279 | fprintf(stderr, "%s:%u: *** warning in %s: ",
|
---|
3280 | pCompiler->pEvalProg->pszFilename, pCompiler->iLine, pCompiler->pEvalProg->pszVarName);
|
---|
3281 | else
|
---|
3282 | fprintf(stderr, "%s:%u: *** warning: ",
|
---|
3283 | pCompiler->pEvalProg->pszFilename, pCompiler->iLine);
|
---|
3284 |
|
---|
3285 | /*
|
---|
3286 | * Print the message.
|
---|
3287 | */
|
---|
3288 | va_start(va, pszMsg);
|
---|
3289 | vfprintf(stderr, pszMsg, va);
|
---|
3290 | va_end(va);
|
---|
3291 | fputs(".\n", stderr);
|
---|
3292 | }
|
---|
3293 |
|
---|
3294 |
|
---|
3295 | /**
|
---|
3296 | * Compiles a string expansion subprogram.
|
---|
3297 | *
|
---|
3298 | * @param pCompiler The compiler state.
|
---|
3299 | * @param pszExpr The expression to compile.
|
---|
3300 | * @param cchExpr The length of the expression.
|
---|
3301 | * @param pSubprog The subprogram to compile.
|
---|
3302 | */
|
---|
3303 | static void kmk_cc_eval_compile_string_exp_subprog(PKMKCCEVALCOMPILER pCompiler, const char *pszExpr, size_t cchExpr,
|
---|
3304 | PKMKCCEXPSUBPROG pSubprog)
|
---|
3305 | {
|
---|
3306 | int rc = kmk_cc_exp_compile_subprog(pCompiler->ppBlockTail, pszExpr, cchExpr, pSubprog);
|
---|
3307 | if (rc == 0)
|
---|
3308 | return;
|
---|
3309 | kmk_cc_eval_fatal(pCompiler, NULL, "String expansion compile error");
|
---|
3310 | }
|
---|
3311 |
|
---|
3312 |
|
---|
3313 | /**
|
---|
3314 | * Initializes a subprogam or plain operand structure.
|
---|
3315 | *
|
---|
3316 | * @param pCompiler The compiler state.
|
---|
3317 | * @param pOperand The subprogram or plain structure to init.
|
---|
3318 | * @param pszString The string.
|
---|
3319 | * @param cchString The length of the string.
|
---|
3320 | * @param fPlain Whether it's plain or not. If not, we'll compile it.
|
---|
3321 | */
|
---|
3322 | static void kmk_cc_eval_init_subprogram_or_plain(PKMKCCEVALCOMPILER pCompiler, PKMKCCEXPSUBPROGORPLAIN pOperand,
|
---|
3323 | const char *pszString, size_t cchString, int fPlain)
|
---|
3324 | {
|
---|
3325 | pOperand->fPlainIsInVarStrCache = 0;
|
---|
3326 | pOperand->bUser = 0;
|
---|
3327 | pOperand->bUser2 = 0;
|
---|
3328 | pOperand->fSubprog = fPlain;
|
---|
3329 | if (fPlain)
|
---|
3330 | {
|
---|
3331 | pOperand->u.Plain.cch = cchString;
|
---|
3332 | pOperand->u.Plain.psz = pszString;
|
---|
3333 | }
|
---|
3334 | else
|
---|
3335 | kmk_cc_eval_compile_string_exp_subprog(pCompiler, pszString, cchString, &pOperand->u.Subprog);
|
---|
3336 | }
|
---|
3337 |
|
---|
3338 | /**
|
---|
3339 | * Initializes an array of subprogram-or-plain (spp) operands from a word array.
|
---|
3340 | *
|
---|
3341 | * The words will be duplicated and the caller must therefore call
|
---|
3342 | * kmk_cc_block_realign() when done (it's not done here as the caller may
|
---|
3343 | * initialize several string operands and we don't want any unnecessary
|
---|
3344 | * fragmentation).
|
---|
3345 | *
|
---|
3346 | * @param pCompiler The compiler state.
|
---|
3347 | * @param cWords The number of words to copy.
|
---|
3348 | * @param paSrc The source words.
|
---|
3349 | * @param paDst The destination subprogram-or-plain array.
|
---|
3350 | */
|
---|
3351 | static void kmk_cc_eval_init_spp_array_from_duplicated_words(PKMKCCEVALCOMPILER pCompiler, unsigned cWords,
|
---|
3352 | PKMKCCEVALWORD paSrc, PKMKCCEXPSUBPROGORPLAIN paDst)
|
---|
3353 | {
|
---|
3354 | unsigned i;
|
---|
3355 | for (i = 0; i < cWords; i++)
|
---|
3356 | {
|
---|
3357 | const char *pszCopy = kmk_cc_block_strdup(pCompiler->ppBlockTail, paSrc[i].pchWord, paSrc[i].cchWord);
|
---|
3358 | paDst[i].fPlainIsInVarStrCache = 0;
|
---|
3359 | paDst[i].bUser = 0;
|
---|
3360 | paDst[i].bUser2 = 0;
|
---|
3361 | if (paSrc[i].enmToken == kKmkCcEvalToken_WordWithDollar)
|
---|
3362 | {
|
---|
3363 | paDst[i].fSubprog = 1;
|
---|
3364 | kmk_cc_block_realign(pCompiler->ppBlockTail);
|
---|
3365 | kmk_cc_eval_compile_string_exp_subprog(pCompiler, pszCopy, paSrc[i].cchWord, &paDst[i].u.Subprog);
|
---|
3366 | }
|
---|
3367 | else
|
---|
3368 | {
|
---|
3369 | paDst[i].fSubprog = 0;
|
---|
3370 | paDst[i].u.Plain.cch = paSrc[i].cchWord;
|
---|
3371 | paDst[i].u.Plain.psz = pszCopy;
|
---|
3372 | }
|
---|
3373 | KMK_CC_EVAL_DPRINTF((" %s\n", pszCopy));
|
---|
3374 | }
|
---|
3375 | }
|
---|
3376 |
|
---|
3377 |
|
---|
3378 |
|
---|
3379 | /** @name KMK_CC_WORD_COMP_CONST_XXX - Optimal(/insane) constant work matching.
|
---|
3380 | * @{
|
---|
3381 | */
|
---|
3382 | #if (defined(KBUILD_ARCH_X86) || defined(KBUILD_ARCH_AMD64)) /* Unaligned access is reasonably cheap. */ \
|
---|
3383 | && !defined(GCC_ADDRESS_SANITIZER)
|
---|
3384 | # define KMK_CC_WORD_COMP_CONST_2(a_pchLine, a_pszWord) \
|
---|
3385 | ( *(uint16_t const *)(a_pchLine) == *(uint16_t const *)(a_pszWord) )
|
---|
3386 | # define KMK_CC_WORD_COMP_CONST_3(a_pchLine, a_pszWord) \
|
---|
3387 | ( *(uint16_t const *)(a_pchLine) == *(uint16_t const *)(a_pszWord) \
|
---|
3388 | && (a_pchLine)[2] == (a_pszWord)[2] )
|
---|
3389 | # define KMK_CC_WORD_COMP_CONST_4(a_pchLine, a_pszWord) \
|
---|
3390 | ( *(uint32_t const *)(a_pchLine) == *(uint32_t const *)(a_pszWord) )
|
---|
3391 | # define KMK_CC_WORD_COMP_CONST_5(a_pchLine, a_pszWord) \
|
---|
3392 | ( *(uint32_t const *)(a_pchLine) == *(uint32_t const *)(a_pszWord) \
|
---|
3393 | && (a_pchLine)[4] == (a_pszWord)[4] )
|
---|
3394 | # define KMK_CC_WORD_COMP_CONST_6(a_pchLine, a_pszWord) \
|
---|
3395 | ( *(uint32_t const *)(a_pchLine) == *(uint32_t const *)(a_pszWord) \
|
---|
3396 | && ((uint16_t const *)(a_pchLine))[2] == ((uint16_t const *)(a_pszWord))[2] )
|
---|
3397 | # define KMK_CC_WORD_COMP_CONST_7(a_pchLine, a_pszWord) \
|
---|
3398 | ( *(uint32_t const *)(a_pchLine) == *(uint32_t const *)(a_pszWord) \
|
---|
3399 | && ((uint16_t const *)(a_pchLine))[2] == ((uint16_t const *)(a_pszWord))[2] \
|
---|
3400 | && (a_pchLine)[6] == (a_pszWord)[6] )
|
---|
3401 | # define KMK_CC_WORD_COMP_CONST_8(a_pchLine, a_pszWord) \
|
---|
3402 | ( *(uint64_t const *)(a_pchLine) == *(uint64_t const *)(a_pszWord) )
|
---|
3403 | # define KMK_CC_WORD_COMP_CONST_10(a_pchLine, a_pszWord) \
|
---|
3404 | ( *(uint64_t const *)(a_pchLine) == *(uint64_t const *)(a_pszWord) \
|
---|
3405 | && ((uint16_t const *)(a_pchLine))[4] == ((uint16_t const *)(a_pszWord))[4] )
|
---|
3406 | # define KMK_CC_WORD_COMP_CONST_16(a_pchLine, a_pszWord) \
|
---|
3407 | ( *(uint64_t const *)(a_pchLine) == *(uint64_t const *)(a_pszWord) \
|
---|
3408 | && ((uint64_t const *)(a_pchLine))[1] == ((uint64_t const *)(a_pszWord))[1] )
|
---|
3409 | #else
|
---|
3410 | # define KMK_CC_WORD_COMP_CONST_2(a_pchLine, a_pszWord) \
|
---|
3411 | ( (a_pchLine)[0] == (a_pszWord)[0] \
|
---|
3412 | && (a_pchLine)[1] == (a_pszWord)[1] )
|
---|
3413 | # define KMK_CC_WORD_COMP_CONST_3(a_pchLine, a_pszWord) \
|
---|
3414 | ( (a_pchLine)[0] == (a_pszWord)[0] \
|
---|
3415 | && (a_pchLine)[1] == (a_pszWord)[1] \
|
---|
3416 | && (a_pchLine)[2] == (a_pszWord)[2] )
|
---|
3417 | # define KMK_CC_WORD_COMP_CONST_4(a_pchLine, a_pszWord) \
|
---|
3418 | ( (a_pchLine)[0] == (a_pszWord)[0] \
|
---|
3419 | && (a_pchLine)[1] == (a_pszWord)[1] \
|
---|
3420 | && (a_pchLine)[2] == (a_pszWord)[2] \
|
---|
3421 | && (a_pchLine)[3] == (a_pszWord)[3] )
|
---|
3422 | # define KMK_CC_WORD_COMP_CONST_5(a_pchLine, a_pszWord) \
|
---|
3423 | ( (a_pchLine)[0] == (a_pszWord)[0] \
|
---|
3424 | && (a_pchLine)[1] == (a_pszWord)[1] \
|
---|
3425 | && (a_pchLine)[2] == (a_pszWord)[2] \
|
---|
3426 | && (a_pchLine)[3] == (a_pszWord)[3] \
|
---|
3427 | && (a_pchLine)[4] == (a_pszWord)[4] )
|
---|
3428 | # define KMK_CC_WORD_COMP_CONST_6(a_pchLine, a_pszWord) \
|
---|
3429 | ( (a_pchLine)[0] == (a_pszWord)[0] \
|
---|
3430 | && (a_pchLine)[1] == (a_pszWord)[1] \
|
---|
3431 | && (a_pchLine)[2] == (a_pszWord)[2] \
|
---|
3432 | && (a_pchLine)[3] == (a_pszWord)[3] \
|
---|
3433 | && (a_pchLine)[4] == (a_pszWord)[4] \
|
---|
3434 | && (a_pchLine)[5] == (a_pszWord)[5] )
|
---|
3435 | # define KMK_CC_WORD_COMP_CONST_7(a_pchLine, a_pszWord) \
|
---|
3436 | ( (a_pchLine)[0] == (a_pszWord)[0] \
|
---|
3437 | && (a_pchLine)[1] == (a_pszWord)[1] \
|
---|
3438 | && (a_pchLine)[2] == (a_pszWord)[2] \
|
---|
3439 | && (a_pchLine)[3] == (a_pszWord)[3] \
|
---|
3440 | && (a_pchLine)[4] == (a_pszWord)[4] \
|
---|
3441 | && (a_pchLine)[5] == (a_pszWord)[5] \
|
---|
3442 | && (a_pchLine)[6] == (a_pszWord)[6] )
|
---|
3443 | # define KMK_CC_WORD_COMP_CONST_8(a_pchLine, a_pszWord) \
|
---|
3444 | ( (a_pchLine)[0] == (a_pszWord)[0] \
|
---|
3445 | && (a_pchLine)[1] == (a_pszWord)[1] \
|
---|
3446 | && (a_pchLine)[2] == (a_pszWord)[2] \
|
---|
3447 | && (a_pchLine)[3] == (a_pszWord)[3] \
|
---|
3448 | && (a_pchLine)[4] == (a_pszWord)[4] \
|
---|
3449 | && (a_pchLine)[5] == (a_pszWord)[5] \
|
---|
3450 | && (a_pchLine)[6] == (a_pszWord)[6] \
|
---|
3451 | && (a_pchLine)[7] == (a_pszWord)[7] )
|
---|
3452 | # define KMK_CC_WORD_COMP_CONST_10(a_pchLine, a_pszWord) \
|
---|
3453 | ( (a_pchLine)[0] == (a_pszWord)[0] \
|
---|
3454 | && (a_pchLine)[1] == (a_pszWord)[1] \
|
---|
3455 | && (a_pchLine)[2] == (a_pszWord)[2] \
|
---|
3456 | && (a_pchLine)[3] == (a_pszWord)[3] \
|
---|
3457 | && (a_pchLine)[4] == (a_pszWord)[4] \
|
---|
3458 | && (a_pchLine)[5] == (a_pszWord)[5] \
|
---|
3459 | && (a_pchLine)[6] == (a_pszWord)[6] \
|
---|
3460 | && (a_pchLine)[7] == (a_pszWord)[7] \
|
---|
3461 | && (a_pchLine)[8] == (a_pszWord)[8] \
|
---|
3462 | && (a_pchLine)[9] == (a_pszWord)[9] )
|
---|
3463 | # define KMK_CC_WORD_COMP_CONST_16(a_pchLine, a_pszWord) \
|
---|
3464 | ( (a_pchLine)[0] == (a_pszWord)[0] \
|
---|
3465 | && (a_pchLine)[1] == (a_pszWord)[1] \
|
---|
3466 | && (a_pchLine)[2] == (a_pszWord)[2] \
|
---|
3467 | && (a_pchLine)[3] == (a_pszWord)[3] \
|
---|
3468 | && (a_pchLine)[4] == (a_pszWord)[4] \
|
---|
3469 | && (a_pchLine)[5] == (a_pszWord)[5] \
|
---|
3470 | && (a_pchLine)[6] == (a_pszWord)[6] \
|
---|
3471 | && (a_pchLine)[7] == (a_pszWord)[7] \
|
---|
3472 | && (a_pchLine)[8] == (a_pszWord)[8] \
|
---|
3473 | && (a_pchLine)[9] == (a_pszWord)[9] \
|
---|
3474 | && (a_pchLine)[10] == (a_pszWord)[10] \
|
---|
3475 | && (a_pchLine)[11] == (a_pszWord)[11] \
|
---|
3476 | && (a_pchLine)[12] == (a_pszWord)[12] \
|
---|
3477 | && (a_pchLine)[13] == (a_pszWord)[13] \
|
---|
3478 | && (a_pchLine)[14] == (a_pszWord)[14] \
|
---|
3479 | && (a_pchLine)[15] == (a_pszWord)[15])
|
---|
3480 | #endif
|
---|
3481 |
|
---|
3482 | /** See if the given string match a constant string. */
|
---|
3483 | #define KMK_CC_STRCMP_CONST(a_pchLeft, a_cchLeft, a_pszConst, a_cchConst) \
|
---|
3484 | ( (a_cchLeft) == (a_cchConst) \
|
---|
3485 | && KMK_CC_WORD_COMP_CONST_##a_cchConst(a_pchLeft, a_pszConst) )
|
---|
3486 |
|
---|
3487 | /** See if a starting of a given length starts with a constant word. */
|
---|
3488 | #define KMK_CC_EVAL_WORD_COMP_IS_EOL(a_pCompiler, a_pchLine, a_cchLine) \
|
---|
3489 | ( (a_cchLine) == 0 \
|
---|
3490 | || KMK_CC_EVAL_IS_SPACE((a_pchLine)[0]) \
|
---|
3491 | || ((a_pchLine)[0] == '\\' && (a_pchLine)[1] == (a_pCompiler)->chFirstEol) ) \
|
---|
3492 |
|
---|
3493 | /** See if a starting of a given length starts with a constant word. */
|
---|
3494 | #define KMK_CC_EVAL_WORD_COMP_CONST(a_pCompiler, a_pchLine, a_cchLine, a_pszWord, a_cchWord) \
|
---|
3495 | ( (a_cchLine) >= (a_cchWord) \
|
---|
3496 | && ( (a_cchLine) == (a_cchWord) \
|
---|
3497 | || KMK_CC_EVAL_IS_SPACE((a_pchLine)[a_cchWord]) \
|
---|
3498 | || ((a_pchLine)[a_cchWord] == '\\' && (a_pchLine)[(a_cchWord) + 1] == (a_pCompiler)->chFirstEol) ) \
|
---|
3499 | && KMK_CC_WORD_COMP_CONST_##a_cchWord(a_pchLine, a_pszWord) )
|
---|
3500 | /** @} */
|
---|
3501 |
|
---|
3502 |
|
---|
3503 | /**
|
---|
3504 | * Checks if a_ch is a space after a word.
|
---|
3505 | *
|
---|
3506 | * Since there is always a terminating zero, the user can safely access a char
|
---|
3507 | * beyond @a a_cchLeft. However, that byte isn't necessarily a zero terminator
|
---|
3508 | * character, so we have to check @a a_cchLeft whether we're at the end of the
|
---|
3509 | * parsing input string.
|
---|
3510 | *
|
---|
3511 | * @returns true / false.
|
---|
3512 | * @param a_pCompiler The compiler instance data.
|
---|
3513 | * @param a_ch The character to inspect.
|
---|
3514 | * @param a_ch2 The character following it, in case of escaped EOL.
|
---|
3515 | * @param a_cchLeft The number of chars left to parse (from @a a_ch).
|
---|
3516 | */
|
---|
3517 | #define KMK_CC_EVAL_IS_SPACE_AFTER_WORD(a_pCompiler, a_ch, a_ch2, a_cchLeft) \
|
---|
3518 | ( a_cchLeft == 0 \
|
---|
3519 | || KMK_CC_EVAL_IS_SPACE(a_ch) \
|
---|
3520 | || ((a_ch) == '\\' && (a_ch2) == (a_pCompiler)->chFirstEol) )
|
---|
3521 |
|
---|
3522 |
|
---|
3523 | /**
|
---|
3524 | * Common path for space skipping worker functions when escaped EOLs may be
|
---|
3525 | * involed.
|
---|
3526 | *
|
---|
3527 | * @returns Points to the first non-space character or end of input.
|
---|
3528 | * @param pchWord The current position. There is some kind of char
|
---|
3529 | * @param cchLeft The current number of chars left to parse in the
|
---|
3530 | * current line.
|
---|
3531 | * @param pcchLeft Where to store the updated @a cchLeft value.
|
---|
3532 | * @param pCompiler The compiler instance data.
|
---|
3533 | */
|
---|
3534 | static const char *kmk_cc_eval_skip_spaces_with_esc_eol(const char *pchWord, size_t cchLeft, size_t *pcchLeft,
|
---|
3535 | PKMKCCEVALCOMPILER pCompiler)
|
---|
3536 | {
|
---|
3537 | /*
|
---|
3538 | * Skip further spaces. We unrolls 4 loops here.
|
---|
3539 | * ASSUMES cchEscEolSeq is either 2 or 3!
|
---|
3540 | */
|
---|
3541 | KMK_CC_ASSERT(pCompiler->cchEscEolSeq == 2 || pCompiler->cchEscEolSeq == 3);
|
---|
3542 | KMK_CC_ASSERT(pCompiler->iEscEol < pCompiler->cEscEols);
|
---|
3543 | while (cchLeft >= 4)
|
---|
3544 | {
|
---|
3545 | /* First char. */
|
---|
3546 | char ch = pchWord[0];
|
---|
3547 | if (KMK_CC_EVAL_IS_SPACE(ch))
|
---|
3548 | { /* maybe likely */ }
|
---|
3549 | else if ( ch == '\\'
|
---|
3550 | && pchWord[1] == pCompiler->chFirstEol)
|
---|
3551 | {
|
---|
3552 | pchWord += pCompiler->cchEscEolSeq;
|
---|
3553 | cchLeft -= pCompiler->cchEscEolSeq;
|
---|
3554 | pCompiler->iEscEol++;
|
---|
3555 | continue;
|
---|
3556 | }
|
---|
3557 | else
|
---|
3558 | {
|
---|
3559 | *pcchLeft = cchLeft;
|
---|
3560 | return pchWord;
|
---|
3561 | }
|
---|
3562 |
|
---|
3563 | /* Second char. */
|
---|
3564 | ch = pchWord[1];
|
---|
3565 | if (KMK_CC_EVAL_IS_SPACE(ch))
|
---|
3566 | { /* maybe likely */ }
|
---|
3567 | else if ( ch == '\\'
|
---|
3568 | && pchWord[2] == pCompiler->chFirstEol)
|
---|
3569 | {
|
---|
3570 | pchWord += 1 + pCompiler->cchEscEolSeq;
|
---|
3571 | cchLeft -= 1 + pCompiler->cchEscEolSeq;
|
---|
3572 | pCompiler->iEscEol++;
|
---|
3573 | continue;
|
---|
3574 | }
|
---|
3575 | else
|
---|
3576 | {
|
---|
3577 | *pcchLeft = cchLeft - 1;
|
---|
3578 | return pchWord + 1;
|
---|
3579 | }
|
---|
3580 |
|
---|
3581 | /* Third char. */
|
---|
3582 | ch = pchWord[2];
|
---|
3583 | if (KMK_CC_EVAL_IS_SPACE(ch))
|
---|
3584 | { /* maybe likely */ }
|
---|
3585 | else if ( ch == '\\'
|
---|
3586 | && pchWord[3] == pCompiler->chFirstEol
|
---|
3587 | && cchLeft >= 2 + pCompiler->cchEscEolSeq)
|
---|
3588 | {
|
---|
3589 | pchWord += 2 + pCompiler->cchEscEolSeq;
|
---|
3590 | cchLeft -= 2 + pCompiler->cchEscEolSeq;
|
---|
3591 | pCompiler->iEscEol++;
|
---|
3592 | continue;
|
---|
3593 | }
|
---|
3594 | else
|
---|
3595 | {
|
---|
3596 | *pcchLeft = cchLeft - 2;
|
---|
3597 | return pchWord + 2;
|
---|
3598 | }
|
---|
3599 |
|
---|
3600 | /* Third char. */
|
---|
3601 | ch = pchWord[3];
|
---|
3602 | if (KMK_CC_EVAL_IS_SPACE(ch))
|
---|
3603 | {
|
---|
3604 | pchWord += 4;
|
---|
3605 | cchLeft -= 4;
|
---|
3606 | }
|
---|
3607 | else if ( ch == '\\'
|
---|
3608 | && cchLeft >= 3 + pCompiler->cchEscEolSeq
|
---|
3609 | && pchWord[4] == pCompiler->chFirstEol)
|
---|
3610 | {
|
---|
3611 | pchWord += 3 + pCompiler->cchEscEolSeq;
|
---|
3612 | cchLeft -= 3 + pCompiler->cchEscEolSeq;
|
---|
3613 | pCompiler->iEscEol++;
|
---|
3614 | }
|
---|
3615 | else
|
---|
3616 | {
|
---|
3617 | *pcchLeft = cchLeft - 3;
|
---|
3618 | return pchWord + 3;
|
---|
3619 | }
|
---|
3620 | }
|
---|
3621 |
|
---|
3622 | /*
|
---|
3623 | * Simple loop for the final three chars.
|
---|
3624 | */
|
---|
3625 | while (cchLeft > 0)
|
---|
3626 | {
|
---|
3627 | /* First char. */
|
---|
3628 | char ch = *pchWord;
|
---|
3629 | if (KMK_CC_EVAL_IS_SPACE(ch))
|
---|
3630 | {
|
---|
3631 | pchWord += 1;
|
---|
3632 | cchLeft -= 1;
|
---|
3633 | }
|
---|
3634 | else if ( ch == '\\'
|
---|
3635 | && cchLeft > pCompiler->cchEolSeq
|
---|
3636 | && pchWord[1] == pCompiler->chFirstEol)
|
---|
3637 | {
|
---|
3638 | pchWord += pCompiler->cchEscEolSeq;
|
---|
3639 | cchLeft -= pCompiler->cchEscEolSeq;
|
---|
3640 | pCompiler->iEscEol++;
|
---|
3641 | }
|
---|
3642 | else
|
---|
3643 | break;
|
---|
3644 | }
|
---|
3645 |
|
---|
3646 | *pcchLeft = cchLeft;
|
---|
3647 | return pchWord;
|
---|
3648 | }
|
---|
3649 |
|
---|
3650 |
|
---|
3651 | /**
|
---|
3652 | * Common path for space skipping worker functions when no escaped EOLs need
|
---|
3653 | * considering.
|
---|
3654 | *
|
---|
3655 | * @returns Points to the first non-space character or end of input.
|
---|
3656 | * @param pchWord The current position. There is some kind of char
|
---|
3657 | * @param cchLeft The current number of chars left to parse in the
|
---|
3658 | * current line.
|
---|
3659 | * @param pcchLeft Where to store the updated @a cchLeft value.
|
---|
3660 | * @param pCompiler The compiler instance data.
|
---|
3661 | */
|
---|
3662 | static const char *kmk_cc_eval_skip_spaces_without_esc_eol(const char *pchWord, size_t cchLeft, size_t *pcchLeft,
|
---|
3663 | PKMKCCEVALCOMPILER pCompiler)
|
---|
3664 | {
|
---|
3665 | /*
|
---|
3666 | * 4x loop unroll.
|
---|
3667 | */
|
---|
3668 | while (cchLeft >= 4)
|
---|
3669 | {
|
---|
3670 | if (KMK_CC_EVAL_IS_SPACE(pchWord[0]))
|
---|
3671 | {
|
---|
3672 | if (KMK_CC_EVAL_IS_SPACE(pchWord[1]))
|
---|
3673 | {
|
---|
3674 | if (KMK_CC_EVAL_IS_SPACE(pchWord[2]))
|
---|
3675 | {
|
---|
3676 | if (KMK_CC_EVAL_IS_SPACE(pchWord[3]))
|
---|
3677 | {
|
---|
3678 | pchWord += 4;
|
---|
3679 | cchLeft -= 4;
|
---|
3680 | }
|
---|
3681 | else
|
---|
3682 | {
|
---|
3683 | *pcchLeft = cchLeft - 3;
|
---|
3684 | return pchWord + 3;
|
---|
3685 | }
|
---|
3686 | }
|
---|
3687 | else
|
---|
3688 | {
|
---|
3689 | *pcchLeft = cchLeft - 2;
|
---|
3690 | return pchWord + 2;
|
---|
3691 | }
|
---|
3692 | }
|
---|
3693 | else
|
---|
3694 | {
|
---|
3695 | *pcchLeft = cchLeft - 1;
|
---|
3696 | return pchWord + 1;
|
---|
3697 | }
|
---|
3698 | }
|
---|
3699 | else
|
---|
3700 | {
|
---|
3701 | *pcchLeft = cchLeft;
|
---|
3702 | return pchWord;
|
---|
3703 | }
|
---|
3704 | }
|
---|
3705 |
|
---|
3706 | /*
|
---|
3707 | * The last 3. Not entirely sure if this yield good code.
|
---|
3708 | */
|
---|
3709 | switch (cchLeft & 3)
|
---|
3710 | {
|
---|
3711 | case 3:
|
---|
3712 | if (!KMK_CC_EVAL_IS_SPACE(*pchWord))
|
---|
3713 | break;
|
---|
3714 | pchWord++;
|
---|
3715 | cchLeft--;
|
---|
3716 | case 2:
|
---|
3717 | if (!KMK_CC_EVAL_IS_SPACE(*pchWord))
|
---|
3718 | break;
|
---|
3719 | pchWord++;
|
---|
3720 | cchLeft--;
|
---|
3721 | case 1:
|
---|
3722 | if (!KMK_CC_EVAL_IS_SPACE(*pchWord))
|
---|
3723 | break;
|
---|
3724 | pchWord++;
|
---|
3725 | cchLeft--;
|
---|
3726 | case 0:
|
---|
3727 | break;
|
---|
3728 | }
|
---|
3729 |
|
---|
3730 | *pcchLeft = cchLeft;
|
---|
3731 | return pchWord;
|
---|
3732 | }
|
---|
3733 |
|
---|
3734 |
|
---|
3735 | /**
|
---|
3736 | * Used to skip spaces after a word.
|
---|
3737 | *
|
---|
3738 | * We ASSUME that the first char is a space or that we've reached the end of the
|
---|
3739 | * string (a_cchLeft == 0).
|
---|
3740 | *
|
---|
3741 | * @param a_pCompiler The compiler instance data.
|
---|
3742 | * @param a_pchWord The current input position, this will be moved to
|
---|
3743 | * the start of the next word or end of the input.
|
---|
3744 | * @param a_cchLeft The number of chars left to parse. This will be
|
---|
3745 | * updated.
|
---|
3746 | */
|
---|
3747 | #define KMK_CC_EVAL_SKIP_SPACES_AFTER_WORD(a_pCompiler, a_pchWord, a_cchLeft) \
|
---|
3748 | do { \
|
---|
3749 | /* Skip the first char which is known to be a space, end of line or end of input. */ \
|
---|
3750 | if ((a_cchLeft) > 0) \
|
---|
3751 | { \
|
---|
3752 | char const chSkipBlanksFirst = *(a_pchWord); \
|
---|
3753 | KMK_CC_ASSERT(KMK_CC_EVAL_IS_SPACE_AFTER_WORD(a_pCompiler, chSkipBlanksFirst, (a_pchWord)[1], a_cchLeft)); \
|
---|
3754 | if (chSkipBlanksFirst != '\\') \
|
---|
3755 | { \
|
---|
3756 | (a_pchWord) += 1; \
|
---|
3757 | (a_cchLeft) -= 1; \
|
---|
3758 | \
|
---|
3759 | /* Another space or escaped EOL? Then there are probably more then, so call worker function. */ \
|
---|
3760 | if ((a_cchLeft) > 0) \
|
---|
3761 | { \
|
---|
3762 | char const chSkipBlanksSecond = *(a_pchWord); \
|
---|
3763 | if (KMK_CC_EVAL_IS_SPACE_OR_BACKSLASH(chSkipBlanksSecond)) \
|
---|
3764 | (a_pchWord) = kmk_cc_eval_skip_spaces_after_word_slow(a_pchWord, &(a_cchLeft), \
|
---|
3765 | chSkipBlanksSecond, a_pCompiler); \
|
---|
3766 | } \
|
---|
3767 | } \
|
---|
3768 | else /* escape sequences can be complicated. */ \
|
---|
3769 | (a_pchWord) = kmk_cc_eval_skip_spaces_after_word_slow(a_pchWord, &(a_cchLeft), \
|
---|
3770 | chSkipBlanksFirst, a_pCompiler); \
|
---|
3771 | } \
|
---|
3772 | } while (0)
|
---|
3773 |
|
---|
3774 | /**
|
---|
3775 | * The slow path of KMK_CC_EVAL_SKIP_SPACES_AFTER_WORD.
|
---|
3776 | *
|
---|
3777 | * This is called to handles escaped EOL sequences, as these can involve
|
---|
3778 | * multiple backslashes and therefore doesn't led themselves well to inlined
|
---|
3779 | * code.
|
---|
3780 | *
|
---|
3781 | * The other case this is used for is to handle more than once space, since it's
|
---|
3782 | * likely that when there are two there might be more. No point in inlining
|
---|
3783 | * that, better do some loop unrolling instead.
|
---|
3784 | *
|
---|
3785 | * @returns Points to the first non-space character or end of input.
|
---|
3786 | * @param pchWord The current position. There is some kind of char
|
---|
3787 | * @param pcchLeft Pointer to the cchLeft variable, this is both
|
---|
3788 | * input and output.
|
---|
3789 | * @param ch The current character.
|
---|
3790 | * @param pCompiler The compiler instance data.
|
---|
3791 | */
|
---|
3792 | static const char *kmk_cc_eval_skip_spaces_after_word_slow(const char *pchWord, size_t *pcchLeft, char ch,
|
---|
3793 | PKMKCCEVALCOMPILER pCompiler)
|
---|
3794 | {
|
---|
3795 | size_t cchLeft = *pcchLeft;
|
---|
3796 |
|
---|
3797 | /*
|
---|
3798 | * It's all very simple when we don't have to consider escaped EOLs.
|
---|
3799 | */
|
---|
3800 | if (pCompiler->iEscEol >= pCompiler->cEscEols)
|
---|
3801 | {
|
---|
3802 | if (ch != '\\')
|
---|
3803 | {
|
---|
3804 | pchWord += 1;
|
---|
3805 | cchLeft -= 1;
|
---|
3806 | }
|
---|
3807 | else
|
---|
3808 | return pchWord;
|
---|
3809 | return kmk_cc_eval_skip_spaces_without_esc_eol(pchWord, cchLeft, pcchLeft, pCompiler);
|
---|
3810 | }
|
---|
3811 |
|
---|
3812 | /*
|
---|
3813 | * Skip the pending space or EOL found by the caller. We need to
|
---|
3814 | * confirm the EOL.
|
---|
3815 | *
|
---|
3816 | * Note! We only need to care about simple backslash+EOL sequences here
|
---|
3817 | * since we're either at the end of a validated word, or we've already
|
---|
3818 | * skipped one space. In the former case, someone else has already
|
---|
3819 | * validated the escape esequence, in the latter case multiple
|
---|
3820 | * backslashes would indicate a new word that that we should return.
|
---|
3821 | */
|
---|
3822 | if (ch != '\\')
|
---|
3823 | {
|
---|
3824 | pchWord += 1;
|
---|
3825 | cchLeft -= 1;
|
---|
3826 | }
|
---|
3827 | else if ( cchLeft >= pCompiler->cchEscEolSeq
|
---|
3828 | && pchWord[1] == pCompiler->chFirstEol)
|
---|
3829 | {
|
---|
3830 | KMK_CC_ASSERT(pCompiler->cchEolSeq == 1 || pchWord[2] == pCompiler->chSecondEol);
|
---|
3831 | pchWord += pCompiler->cchEscEolSeq;
|
---|
3832 | cchLeft -= pCompiler->cchEscEolSeq;
|
---|
3833 | pCompiler->iEscEol++;
|
---|
3834 |
|
---|
3835 | if (pCompiler->iEscEol < pCompiler->cEscEols)
|
---|
3836 | { /* likely */ }
|
---|
3837 | else return kmk_cc_eval_skip_spaces_without_esc_eol(pchWord, cchLeft, pcchLeft, pCompiler);
|
---|
3838 | }
|
---|
3839 | else
|
---|
3840 | return pchWord;
|
---|
3841 | return kmk_cc_eval_skip_spaces_with_esc_eol(pchWord, cchLeft, pcchLeft, pCompiler);
|
---|
3842 | }
|
---|
3843 |
|
---|
3844 |
|
---|
3845 | /**
|
---|
3846 | * Skip zero or more spaces.
|
---|
3847 | *
|
---|
3848 | * This macro deals with a single space, if there are more or we're hittin some
|
---|
3849 | * possible escaped EOL sequence, work is deferred to a worker function.
|
---|
3850 | *
|
---|
3851 | * @param a_pCompiler The compiler state.
|
---|
3852 | * @param a_pchWord The current input position. Advanced past spaces.
|
---|
3853 | * @param a_cchLeft The amount of input left to parse. Will be updated.
|
---|
3854 | */
|
---|
3855 | #define KMK_CC_EVAL_SKIP_SPACES(a_pCompiler, a_pchWord, a_cchLeft) \
|
---|
3856 | do { \
|
---|
3857 | if ((a_cchLeft) > 0) \
|
---|
3858 | { \
|
---|
3859 | char chSkipSpaces = *(a_pchWord); \
|
---|
3860 | if (KMK_CC_EVAL_IS_SPACE_OR_BACKSLASH(chSkipSpaces)) \
|
---|
3861 | { \
|
---|
3862 | if (chSkipSpaces != '\\') \
|
---|
3863 | { \
|
---|
3864 | (a_pchWord) += 1; \
|
---|
3865 | (a_cchLeft) -= 1; \
|
---|
3866 | chSkipSpaces = *(a_pchWord); \
|
---|
3867 | if (KMK_CC_EVAL_IS_SPACE_OR_BACKSLASH(chSkipSpaces)) \
|
---|
3868 | (a_pchWord) = kmk_cc_eval_skip_spaces_slow(a_pchWord, &(a_cchLeft), chSkipSpaces, a_pCompiler); \
|
---|
3869 | } \
|
---|
3870 | else \
|
---|
3871 | (a_pchWord) = kmk_cc_eval_skip_spaces_slow(a_pchWord, &(a_cchLeft), chSkipSpaces, a_pCompiler); \
|
---|
3872 | } \
|
---|
3873 | } \
|
---|
3874 | } while (0)
|
---|
3875 |
|
---|
3876 |
|
---|
3877 | /**
|
---|
3878 | * Worker for KMK_CC_EVAL_SKIP_SPACES.
|
---|
3879 | *
|
---|
3880 | * @returns Points to the first non-space character or end of input.
|
---|
3881 | * @param pchWord The current position. There is some kind of char
|
---|
3882 | * @param pcchLeft Pointer to the cchLeft variable, this is both
|
---|
3883 | * input and output.
|
---|
3884 | * @param ch The current character.
|
---|
3885 | * @param pCompiler The compiler instance data.
|
---|
3886 | */
|
---|
3887 | static const char *kmk_cc_eval_skip_spaces_slow(const char *pchWord, size_t *pcchLeft, char ch, PKMKCCEVALCOMPILER pCompiler)
|
---|
3888 | {
|
---|
3889 | size_t cchLeft = *pcchLeft;
|
---|
3890 | #ifdef KMK_CC_STRICT
|
---|
3891 | size_t offWordCcStrict = pchWord - pCompiler->pszContent;
|
---|
3892 | #endif
|
---|
3893 | KMK_CC_ASSERT(cchLeft > 0);
|
---|
3894 | KMK_CC_ASSERT(cchLeft <= pCompiler->cchLine);
|
---|
3895 | KMK_CC_ASSERT(*pchWord == ch);
|
---|
3896 | KMK_CC_ASSERT(KMK_CC_EVAL_IS_SPACE_OR_BACKSLASH(ch));
|
---|
3897 | KMK_CC_ASSERT(offWordCcStrict >= pCompiler->offLine);
|
---|
3898 | KMK_CC_ASSERT(offWordCcStrict < pCompiler->offLine + pCompiler->cchLine);
|
---|
3899 | KMK_CC_ASSERT( pCompiler->iEscEol >= pCompiler->cEscEols
|
---|
3900 | || offWordCcStrict <= pCompiler->paEscEols[pCompiler->iEscEol].offEsc);
|
---|
3901 | KMK_CC_ASSERT( pCompiler->iEscEol >= pCompiler->cEscEols
|
---|
3902 | || pCompiler->iEscEol == 0
|
---|
3903 | || offWordCcStrict >= pCompiler->paEscEols[pCompiler->iEscEol - 1].offEol + pCompiler->cchEolSeq);
|
---|
3904 |
|
---|
3905 | /*
|
---|
3906 | * If we don't need to consider escaped EOLs, things are much much simpler.
|
---|
3907 | */
|
---|
3908 | if (pCompiler->iEscEol >= pCompiler->cEscEols)
|
---|
3909 | {
|
---|
3910 | if (ch != '\\')
|
---|
3911 | {
|
---|
3912 | pchWord++;
|
---|
3913 | cchLeft--;
|
---|
3914 | }
|
---|
3915 | else
|
---|
3916 | return pchWord;
|
---|
3917 | return kmk_cc_eval_skip_spaces_without_esc_eol(pchWord, cchLeft, pcchLeft, pCompiler);
|
---|
3918 | }
|
---|
3919 |
|
---|
3920 | /*
|
---|
3921 | * Possible escaped EOL complications.
|
---|
3922 | */
|
---|
3923 | if (ch != '\\')
|
---|
3924 | {
|
---|
3925 | pchWord++;
|
---|
3926 | cchLeft--;
|
---|
3927 | }
|
---|
3928 | else
|
---|
3929 | {
|
---|
3930 | size_t cchSkip;
|
---|
3931 | size_t offWord;
|
---|
3932 | unsigned iEscEol = pCompiler->iEscEol;
|
---|
3933 | if (iEscEol >= pCompiler->cEscEols)
|
---|
3934 | return pchWord;
|
---|
3935 |
|
---|
3936 | offWord = pchWord - pCompiler->pszContent;
|
---|
3937 | if (offWord < pCompiler->paEscEols[iEscEol].offEsc)
|
---|
3938 | return pchWord;
|
---|
3939 | KMK_CC_ASSERT(offWord == pCompiler->paEscEols[iEscEol].offEsc);
|
---|
3940 |
|
---|
3941 | cchSkip = pCompiler->paEscEols[iEscEol].offEol + pCompiler->cchEolSeq - offWord;
|
---|
3942 | pchWord += cchSkip;
|
---|
3943 | cchLeft -= cchSkip;
|
---|
3944 | pCompiler->iEscEol = ++iEscEol;
|
---|
3945 |
|
---|
3946 | if (iEscEol < pCompiler->cEscEols)
|
---|
3947 | { /* likely */ }
|
---|
3948 | else return kmk_cc_eval_skip_spaces_without_esc_eol(pchWord, cchLeft, pcchLeft, pCompiler);
|
---|
3949 | }
|
---|
3950 | return kmk_cc_eval_skip_spaces_with_esc_eol(pchWord, cchLeft, pcchLeft, pCompiler);
|
---|
3951 | }
|
---|
3952 |
|
---|
3953 |
|
---|
3954 | #if 0 /* unused - probably forever. */
|
---|
3955 | /**
|
---|
3956 | * Skips to the end of a variable name.
|
---|
3957 | *
|
---|
3958 | * This may advance pCompiler->iEscEol.
|
---|
3959 | *
|
---|
3960 | * @returns Pointer to the first char after the variable name.
|
---|
3961 | * @param pCompiler The compiler state.
|
---|
3962 | * @param pchWord The current position. Must be at the start of the
|
---|
3963 | * variable name.
|
---|
3964 | * @param cchLeft The number of chars left to parse in the current line.
|
---|
3965 | * @param pcchLeft The to store the updated count of characters left to
|
---|
3966 | * parse.
|
---|
3967 | * @param pfPlain Where to store the plain variable name indicator.
|
---|
3968 | * Returns 0 if plain, and 1 if there are variable
|
---|
3969 | * references in it.
|
---|
3970 | */
|
---|
3971 | static const char *kmk_cc_eval_skip_var_name(PKMKCCEVALCOMPILER pCompiler, const char *pchWord, size_t cchLeft,
|
---|
3972 | size_t *pcchLeft, int *pfPlain)
|
---|
3973 | {
|
---|
3974 | const char * const pszContent = pCompiler->pszContent;
|
---|
3975 | size_t off = pchWord - pszContent;
|
---|
3976 | size_t const offLineEnd = off + cchLeft;
|
---|
3977 | int fPlain = 1;
|
---|
3978 | unsigned iEscEol = pCompiler->iEscEol;
|
---|
3979 |
|
---|
3980 | /* Check our expectations. */
|
---|
3981 | KMK_CC_ASSERT(cchLeft);
|
---|
3982 | KMK_CC_ASSERT(!KMK_CC_EVAL_IS_SPACE(*pchWord));
|
---|
3983 | KMK_CC_ASSERT(iEscEol <= pCompiler->cEscEols);
|
---|
3984 | KMK_CC_ASSERT( iEscEol >= pCompiler->cEscEols
|
---|
3985 | || off < pCompiler->paEscEols[iEscEol].offEol);
|
---|
3986 | KMK_CC_ASSERT(off >= (iEscEol == 0 ? pCompiler->offLine : pCompiler->paEscEols[iEscEol - 1].offEol + pCompiler->cchEolSeq));
|
---|
3987 |
|
---|
3988 | /*
|
---|
3989 | * The outer loop parses plain text. Variable expansion ($) is handled
|
---|
3990 | * by the inner loop.
|
---|
3991 | */
|
---|
3992 | while (off < offLineEnd)
|
---|
3993 | {
|
---|
3994 | char ch = pszContent[off];
|
---|
3995 | if (!KMK_CC_EVAL_IS_SPACE_DOLLAR_OR_SLASH(ch))
|
---|
3996 | off++;
|
---|
3997 | else if (KMK_CC_EVAL_IS_SPACE(ch))
|
---|
3998 | break;
|
---|
3999 | else if (ch == '$')
|
---|
4000 | {
|
---|
4001 | off++;
|
---|
4002 | if (off < offLineEnd)
|
---|
4003 | {
|
---|
4004 | char const chOpen = pszContent[off];
|
---|
4005 | if (chOpen == '(' || chOpen == '{')
|
---|
4006 | {
|
---|
4007 | /*
|
---|
4008 | * Got a $(VAR) or ${VAR} to deal with here. This may
|
---|
4009 | * include nested variable references and span multiple
|
---|
4010 | * lines (at least for function calls).
|
---|
4011 | *
|
---|
4012 | * We scan forward till we've found the corresponding
|
---|
4013 | * closing parenthesis, considering any open parentheses
|
---|
4014 | * of the same kind as worth counting, even if there are
|
---|
4015 | * no dollar preceeding them, just like GNU make does.
|
---|
4016 | */
|
---|
4017 | size_t const offStart = off - 1;
|
---|
4018 | char const chClose = chOpen == '(' ? ')' : '}';
|
---|
4019 | unsigned cOpen = 1;
|
---|
4020 | off++;
|
---|
4021 | for (;;)
|
---|
4022 | {
|
---|
4023 | if (off < offLineEnd)
|
---|
4024 | {
|
---|
4025 | ch = pszContent[off];
|
---|
4026 | if (!(KMK_CC_EVAL_IS_PAREN_OR_SLASH(ch)))
|
---|
4027 | off++;
|
---|
4028 | else
|
---|
4029 | {
|
---|
4030 | off++;
|
---|
4031 | if (ch == chClose)
|
---|
4032 | {
|
---|
4033 | if (--cOpen == 0)
|
---|
4034 | break;
|
---|
4035 | }
|
---|
4036 | else if (ch == chOpen)
|
---|
4037 | cOpen++;
|
---|
4038 | else if ( ch == '\\'
|
---|
4039 | && iEscEol < pCompiler->cEscEols
|
---|
4040 | && off == pCompiler->paEscEols[iEscEol].offEsc)
|
---|
4041 | {
|
---|
4042 | off = pCompiler->paEscEols[iEscEol].offEol + pCompiler->cchEolSeq;
|
---|
4043 | pCompiler->iEscEol = ++iEscEol;
|
---|
4044 | }
|
---|
4045 | }
|
---|
4046 | }
|
---|
4047 | else if (cOpen == 1)
|
---|
4048 | kmk_cc_eval_fatal(pCompiler, &pszContent[offStart],
|
---|
4049 | "Variable reference is missing '%c'", chClose);
|
---|
4050 | else
|
---|
4051 | kmk_cc_eval_fatal(pCompiler, &pszContent[offStart],
|
---|
4052 | "%u variable references are missing '%c'", cOpen, chClose);
|
---|
4053 | }
|
---|
4054 | }
|
---|
4055 | /* Single char variable name. */
|
---|
4056 | else if (!KMK_CC_EVAL_IS_SPACE(chOpen))
|
---|
4057 | { /* likely */ }
|
---|
4058 | else
|
---|
4059 | kmk_cc_eval_fatal(pCompiler, &pszContent[off], "Expected variable name after '$', not end of line");
|
---|
4060 | }
|
---|
4061 | else
|
---|
4062 | kmk_cc_eval_fatal(pCompiler, &pszContent[off], "Expected variable name after '$', not end of line");
|
---|
4063 | fPlain = 0;
|
---|
4064 | }
|
---|
4065 | /* Deal with potential escaped EOL. */
|
---|
4066 | else if ( ch != '\\'
|
---|
4067 | || iEscEol >= pCompiler->cEscEols
|
---|
4068 | || off != pCompiler->paEscEols[iEscEol].offEsc )
|
---|
4069 | off++;
|
---|
4070 | else
|
---|
4071 | break;
|
---|
4072 | }
|
---|
4073 |
|
---|
4074 | *pcchLeft = offLineEnd - off;
|
---|
4075 | *pfPlain = fPlain;
|
---|
4076 | return &pszContent[off];
|
---|
4077 | }
|
---|
4078 | #endif /* unused */
|
---|
4079 |
|
---|
4080 |
|
---|
4081 | #if 0 /* unused atm */
|
---|
4082 | /**
|
---|
4083 | * Prepares for copying a command line.
|
---|
4084 | *
|
---|
4085 | * The current version of this code will not modify any of the paEscEols
|
---|
4086 | * entries, unlike our kmk_cc_eval_prep_normal_line sibling function.
|
---|
4087 | *
|
---|
4088 | * @returns The number of chars that will be copied by
|
---|
4089 | * kmk_cc_eval_copy_prepped_command_line().
|
---|
4090 | * @param pCompiler The compiler instance data.
|
---|
4091 | * @param pchLeft Pointer to the first char to copy from the current line.
|
---|
4092 | * This does not have to the start of a word.
|
---|
4093 | * @param cchLeft The number of chars left on the current line starting at
|
---|
4094 | * @a pchLeft.
|
---|
4095 | */
|
---|
4096 | static size_t kmk_cc_eval_prep_command_line(PKMKCCEVALCOMPILER pCompiler, const char * const pchLeft, size_t cchLeft)
|
---|
4097 | {
|
---|
4098 | size_t cchRet;
|
---|
4099 | unsigned iEscEol = pCompiler->iEscEol;
|
---|
4100 | unsigned const cEscEols = pCompiler->cEscEols;
|
---|
4101 |
|
---|
4102 | KMK_CC_ASSERT(cchLeft > 0);
|
---|
4103 | KMK_CC_ASSERT(iEscEol <= cEscEols);
|
---|
4104 |
|
---|
4105 | if (iEscEol >= cEscEols)
|
---|
4106 | {
|
---|
4107 | /*
|
---|
4108 | * No escaped EOLs left, dead simple.
|
---|
4109 | */
|
---|
4110 | cchRet = cchLeft;
|
---|
4111 | }
|
---|
4112 | else
|
---|
4113 | {
|
---|
4114 | /*
|
---|
4115 | * Compared to the normal prepping of a line, this is actually
|
---|
4116 | * really simple. We need to account for two kind of conversions:
|
---|
4117 | * - One leading tab is skipped after escaped EOL.
|
---|
4118 | * - Convert EOL to LF.
|
---|
4119 | */
|
---|
4120 | const char * const pszContent = pCompiler->pszContent;
|
---|
4121 | size_t const cchEolSeq = pCompiler->cchEolSeq;
|
---|
4122 |
|
---|
4123 | #ifdef KMK_CC_STRICT
|
---|
4124 | size_t const offLeft = pchLeft - pszContent;
|
---|
4125 | KMK_CC_ASSERT(offLeft + cchLeft <= pCompiler->offLine + pCompiler->cchLine);
|
---|
4126 | KMK_CC_ASSERT(offLeft + cchLeft <= pCompiler->cchContent);
|
---|
4127 | KMK_CC_ASSERT(offLeft < pCompiler->paEscEols[iEscEol].offEsc);
|
---|
4128 | KMK_CC_ASSERT(offLeft >= (iEscEol ? pCompiler->paEscEols[cEscEols - 1].offEol + pCompiler->cchEolSeq : pCompiler->offLine));
|
---|
4129 | #endif
|
---|
4130 |
|
---|
4131 | cchRet = cchLeft;
|
---|
4132 | if (cchEolSeq > 1)
|
---|
4133 | cchRet -= (cchEolSeq - 1) * cEscEols;
|
---|
4134 | do
|
---|
4135 | {
|
---|
4136 | if (pszContent[pCompiler->paEscEols[cchEolSeq].offEol])
|
---|
4137 | cchRet--;
|
---|
4138 | iEscEol++;
|
---|
4139 | } while (iEscEol < cEscEols);
|
---|
4140 | }
|
---|
4141 | return cchRet;
|
---|
4142 | }
|
---|
4143 |
|
---|
4144 |
|
---|
4145 | /**
|
---|
4146 | * Copies a command line to the buffer @a pszDst points to.
|
---|
4147 | *
|
---|
4148 | * Must only be used immediately after kmk_cc_eval_prep_command_line().
|
---|
4149 | *
|
---|
4150 | * @returns
|
---|
4151 | * @param pCompiler The compiler instance data.
|
---|
4152 | * @param pchLeft Pointer to the first char to copy from the current line.
|
---|
4153 | * This does not have to the start of a word.
|
---|
4154 | * @param cchPrepped The return value of kmk_cc_eval_prep_command_line().
|
---|
4155 | * @param pszDst The destination buffer, must be at least @a cchPrepped
|
---|
4156 | * plus one (terminator) char big.
|
---|
4157 | */
|
---|
4158 | static void kmk_cc_eval_copy_prepped_command_line(PKMKCCEVALCOMPILER pCompiler, const char *pchLeft,
|
---|
4159 | size_t cchPrepped, char *pszDst)
|
---|
4160 | {
|
---|
4161 | unsigned iEscEol = pCompiler->iEscEol;
|
---|
4162 | unsigned const cEscEols = pCompiler->cEscEols;
|
---|
4163 | if (iEscEol >= cEscEols)
|
---|
4164 | {
|
---|
4165 | /* Single line. */
|
---|
4166 | memcpy(pszDst, pchLeft, cchPrepped);
|
---|
4167 | pszDst[cchPrepped] = '\0';
|
---|
4168 | }
|
---|
4169 | else
|
---|
4170 | {
|
---|
4171 | /* Multiple lines with normalized EOL and maybe one stripped leading TAB. */
|
---|
4172 | char * const pszDstStart = pszDst;
|
---|
4173 | const char * const pszContent = pCompiler->pszContent;
|
---|
4174 | size_t const cchEolSeq = pCompiler->cchEolSeq;
|
---|
4175 | size_t offLeft = pchLeft - pCompiler->pszContent;
|
---|
4176 | size_t cchCopy;
|
---|
4177 |
|
---|
4178 | do
|
---|
4179 | {
|
---|
4180 | size_t offEol = pCompiler->paEscEols[iEscEol].offEsc;
|
---|
4181 | cchCopy = offEol - offLeft;
|
---|
4182 | KMK_CC_ASSERT(offEol >= offLeft);
|
---|
4183 |
|
---|
4184 | memcpy(pszDst, &pszContent[offLeft], cchCopy);
|
---|
4185 | pszDst += cchCopy;
|
---|
4186 | *pszDst += '\n';
|
---|
4187 |
|
---|
4188 | offLeft = offEol + cchEolSeq;
|
---|
4189 | if (pszContent[offLeft] == '\t')
|
---|
4190 | offLeft++;
|
---|
4191 | } while (iEscEol < cEscEols);
|
---|
4192 |
|
---|
4193 | cchCopy = cchPrepped - (pszDst - pszDstStart);
|
---|
4194 | KMK_CC_ASSERT(cchCopy <= cchPrepped);
|
---|
4195 | memcpy(pszDst, &pszContent[offLeft], cchCopy);
|
---|
4196 | pszDst += cchCopy;
|
---|
4197 |
|
---|
4198 | *pszDst = '\0';
|
---|
4199 | KMK_CC_ASSERT(pszDst == &pszDstStart[cchPrepped]);
|
---|
4200 | }
|
---|
4201 | }
|
---|
4202 | #endif /* unused atm */
|
---|
4203 |
|
---|
4204 |
|
---|
4205 | static size_t kmk_cc_eval_parse_var_exp(PKMKCCEVALCOMPILER pCompiler, const char *pch, size_t cchLeft, size_t off)
|
---|
4206 | {
|
---|
4207 | off++;
|
---|
4208 | if (off < cchLeft)
|
---|
4209 | {
|
---|
4210 | char const chOpen = pch[++off];
|
---|
4211 | if (chOpen == '(' || chOpen == '{')
|
---|
4212 | {
|
---|
4213 | /*
|
---|
4214 | * Got a $(VAR) or ${VAR} to deal with here. This may include nested
|
---|
4215 | * variable references and span multiple lines (at least for function
|
---|
4216 | * calls).
|
---|
4217 | *
|
---|
4218 | * We scan forward till we've found the corresponding closing
|
---|
4219 | * parenthesis, considering any open parentheses of the same kind as
|
---|
4220 | * worth counting, even if there are no dollar preceeding them, just
|
---|
4221 | * like GNU make does.
|
---|
4222 | */
|
---|
4223 | size_t const offStart = off - 1;
|
---|
4224 | char const chClose = chOpen == '(' ? ')' : '}';
|
---|
4225 | unsigned cOpen = 1;
|
---|
4226 | off++;
|
---|
4227 | for (;;)
|
---|
4228 | {
|
---|
4229 | if (off < cchLeft)
|
---|
4230 | {
|
---|
4231 | char ch = pch[off];
|
---|
4232 | if (!(KMK_CC_EVAL_IS_PAREN_OR_SLASH(ch)))
|
---|
4233 | off++;
|
---|
4234 | else
|
---|
4235 | {
|
---|
4236 | off++;
|
---|
4237 | if (ch == chClose)
|
---|
4238 | {
|
---|
4239 | if (--cOpen == 0)
|
---|
4240 | break;
|
---|
4241 | }
|
---|
4242 | else if (ch == chOpen)
|
---|
4243 | cOpen++;
|
---|
4244 | else if ( ch == '\\'
|
---|
4245 | && pCompiler->iEscEol < pCompiler->cEscEols
|
---|
4246 | && (size_t)(&pch[off] - pCompiler->pszContent)
|
---|
4247 | == pCompiler->paEscEols[pCompiler->iEscEol].offEsc)
|
---|
4248 | {
|
---|
4249 | off += pCompiler->paEscEols[pCompiler->iEscEol].offEol
|
---|
4250 | - pCompiler->paEscEols[pCompiler->iEscEol].offEsc
|
---|
4251 | + pCompiler->cchEolSeq;
|
---|
4252 | pCompiler->iEscEol++;
|
---|
4253 | }
|
---|
4254 | }
|
---|
4255 | }
|
---|
4256 | else if (cOpen == 1)
|
---|
4257 | kmk_cc_eval_fatal(pCompiler, &pch[offStart], "Variable reference is missing '%c'", chClose);
|
---|
4258 | else
|
---|
4259 | kmk_cc_eval_fatal(pCompiler, &pch[offStart],
|
---|
4260 | "%u variable references are missing '%c'", cOpen, chClose);
|
---|
4261 | }
|
---|
4262 | }
|
---|
4263 | /* Single char variable name. */
|
---|
4264 | else if (!KMK_CC_EVAL_IS_SPACE(chOpen))
|
---|
4265 | { /* likely */ }
|
---|
4266 | else
|
---|
4267 | kmk_cc_eval_fatal(pCompiler, &pch[off], "Expected variable name after '$', not space ");
|
---|
4268 | }
|
---|
4269 | else
|
---|
4270 | kmk_cc_eval_fatal(pCompiler, &pch[off], "Expected variable name after '$', end of line");
|
---|
4271 | return off;
|
---|
4272 | }
|
---|
4273 |
|
---|
4274 | /**
|
---|
4275 | * Helper for ensuring that we've got sufficient number of words allocated.
|
---|
4276 | */
|
---|
4277 | #define KMK_CC_EVAL_ENSURE_WORDS(a_pCompiler, a_cRequiredWords) \
|
---|
4278 | do { \
|
---|
4279 | if ((a_cRequiredWords) < (a_pCompiler)->cWordsAllocated) \
|
---|
4280 | { /* likely */ } \
|
---|
4281 | else \
|
---|
4282 | { \
|
---|
4283 | unsigned cEnsureWords = ((a_cRequiredWords) + 3 /*15*/) & ~(unsigned)3/*15*/; \
|
---|
4284 | KMK_CC_ASSERT((a_cRequiredWords) < 0x8000); \
|
---|
4285 | (a_pCompiler)->paWords = (PKMKCCEVALWORD)xrealloc((a_pCompiler)->paWords, \
|
---|
4286 | cEnsureWords * sizeof((a_pCompiler)->paWords)[0]); \
|
---|
4287 | } \
|
---|
4288 | } while (0)
|
---|
4289 |
|
---|
4290 |
|
---|
4291 | /**
|
---|
4292 | * Word parser helper function for dealing with dollars, simple variant that
|
---|
4293 | * doesn't need to take multiple lines into account.
|
---|
4294 | *
|
---|
4295 | * @returns New word length placing us after the
|
---|
4296 | * @param pCompiler The compiler state.
|
---|
4297 | * @param cchWord Offset of the dollar into pchWord.
|
---|
4298 | * @param pchWord The word we're currently parsing.
|
---|
4299 | * @param cchLeft How much we've got left to parse.
|
---|
4300 | */
|
---|
4301 | K_INLINE size_t kmk_cc_eval_parse_along_dollar_simple(PKMKCCEVALCOMPILER pCompiler, size_t cchWord,
|
---|
4302 | const char *pchWord, size_t cchLeft)
|
---|
4303 | {
|
---|
4304 | const size_t cchStart = cchWord;
|
---|
4305 | cchWord++;
|
---|
4306 | if (cchWord < cchLeft)
|
---|
4307 | {
|
---|
4308 | /*
|
---|
4309 | * Got a $(VAR) or ${VAR} to deal with here. This may include nested variable
|
---|
4310 | * references and span multiple lines (at least for function calls).
|
---|
4311 | *
|
---|
4312 | * We scan forward till we've found the corresponding closing parenthesis,
|
---|
4313 | * considering any open parentheses of the same kind as worth counting, even
|
---|
4314 | * if there are no dollar preceeding them, just like GNU make does.
|
---|
4315 | *
|
---|
4316 | * We leave the other parenthesis type to the expansion compiler to deal with.
|
---|
4317 | */
|
---|
4318 | unsigned cOpens = 1;
|
---|
4319 | char const chOpen = pchWord[cchWord++];
|
---|
4320 | if (chOpen == '(')
|
---|
4321 | {
|
---|
4322 | for (;;)
|
---|
4323 | {
|
---|
4324 | if (cchWord < cchLeft)
|
---|
4325 | {
|
---|
4326 | char const ch = pchWord[cchWord++];
|
---|
4327 | if (!KMK_CC_EVAL_IS_PAREN_OR_SLASH(ch))
|
---|
4328 | { /* likely */ }
|
---|
4329 | else if (ch == ')')
|
---|
4330 | {
|
---|
4331 | if (--cOpens == 0)
|
---|
4332 | return cchWord;
|
---|
4333 | }
|
---|
4334 | else if (ch == '(')
|
---|
4335 | cOpens++;
|
---|
4336 | }
|
---|
4337 | else
|
---|
4338 | break;
|
---|
4339 | }
|
---|
4340 | }
|
---|
4341 | else if (chOpen == '{')
|
---|
4342 | {
|
---|
4343 | for (;;)
|
---|
4344 | {
|
---|
4345 | if (cchWord < cchLeft)
|
---|
4346 | {
|
---|
4347 | char const ch = pchWord[cchWord++];
|
---|
4348 | if (!KMK_CC_EVAL_IS_PAREN_OR_SLASH(ch))
|
---|
4349 | { /* likely */ }
|
---|
4350 | else if (ch == '}')
|
---|
4351 | {
|
---|
4352 | if (--cOpens == 0)
|
---|
4353 | return cchWord;
|
---|
4354 | }
|
---|
4355 | else if (ch == '{')
|
---|
4356 | cOpens++;
|
---|
4357 | }
|
---|
4358 | else
|
---|
4359 | break;
|
---|
4360 | }
|
---|
4361 | }
|
---|
4362 | else
|
---|
4363 | return cchWord;
|
---|
4364 |
|
---|
4365 | /* Unterminated. */
|
---|
4366 | if (cOpens == 1)
|
---|
4367 | kmk_cc_eval_fatal(pCompiler, &pchWord[cchStart],
|
---|
4368 | "Variable reference is missing '%c'", chOpen == '(' ? ')' : '}');
|
---|
4369 | else
|
---|
4370 | kmk_cc_eval_fatal(pCompiler, &pchWord[cchStart],
|
---|
4371 | "%u variable references are missing '%c'", cOpens, chOpen == '(' ? ')' : '}');
|
---|
4372 | }
|
---|
4373 | else
|
---|
4374 | kmk_cc_eval_warn(pCompiler, &pchWord[cchWord - 1], "found '$' at end of line");
|
---|
4375 | return cchWord;
|
---|
4376 | }
|
---|
4377 |
|
---|
4378 |
|
---|
4379 | /**
|
---|
4380 | * Word parser helper function for dealing with dollars, complicated variant
|
---|
4381 | * that takes escaped EOLs into account.
|
---|
4382 | *
|
---|
4383 | * @returns New word length placing us after the
|
---|
4384 | * @param pCompiler The compiler state.
|
---|
4385 | * @param cchWord Offset of the dollar into pchWord.
|
---|
4386 | * @param pchWord The word we're currently parsing.
|
---|
4387 | * @param cchLeft How much we've got left to parse.
|
---|
4388 | */
|
---|
4389 | static size_t kmk_cc_eval_parse_along_dollar_esc_eol(PKMKCCEVALCOMPILER pCompiler, size_t cchWord,
|
---|
4390 | const char *pchWord, size_t cchLeft)
|
---|
4391 | {
|
---|
4392 | const size_t cchStart = cchWord;
|
---|
4393 | cchWord++;
|
---|
4394 | if (cchWord < cchLeft)
|
---|
4395 | {
|
---|
4396 | /*
|
---|
4397 | * Got a $(VAR) or ${VAR} to deal with here. This may include nested variable
|
---|
4398 | * references and span multiple lines (at least for function calls).
|
---|
4399 | *
|
---|
4400 | * We scan forward till we've found the corresponding closing parenthesis,
|
---|
4401 | * considering any open parentheses of the same kind as worth counting, even
|
---|
4402 | * if there are no dollar preceeding them, just like GNU make does.
|
---|
4403 | *
|
---|
4404 | * We leave the other parenthesis type to the expansion compiler to deal with.
|
---|
4405 | */
|
---|
4406 | unsigned cOpens = 1;
|
---|
4407 | char const chOpen = pchWord[cchWord++];
|
---|
4408 | if (chOpen == '(')
|
---|
4409 | {
|
---|
4410 | for (;;)
|
---|
4411 | {
|
---|
4412 | if (cchWord < cchLeft)
|
---|
4413 | {
|
---|
4414 | char const ch = pchWord[cchWord++];
|
---|
4415 | if (!KMK_CC_EVAL_IS_PAREN_OR_SLASH(ch))
|
---|
4416 | { /* likely */ }
|
---|
4417 | else if (ch == ')')
|
---|
4418 | {
|
---|
4419 | if (--cOpens == 0)
|
---|
4420 | return cchWord;
|
---|
4421 | }
|
---|
4422 | else if (ch == '(')
|
---|
4423 | cOpens++;
|
---|
4424 | else if (ch == '\\')
|
---|
4425 | {
|
---|
4426 | unsigned const iEscEol = pCompiler->iEscEol;
|
---|
4427 | if ( iEscEol < pCompiler->cEscEols
|
---|
4428 | && (size_t)(&pchWord[cchWord] - pCompiler->pszContent) == pCompiler->paEscEols[iEscEol].offEsc)
|
---|
4429 | {
|
---|
4430 | cchWord += pCompiler->paEscEols[iEscEol].offEol
|
---|
4431 | - pCompiler->paEscEols[iEscEol].offEsc
|
---|
4432 | + pCompiler->cchEolSeq;
|
---|
4433 | pCompiler->iEscEol = iEscEol + 1;
|
---|
4434 | }
|
---|
4435 | }
|
---|
4436 | }
|
---|
4437 | else
|
---|
4438 | break;
|
---|
4439 | }
|
---|
4440 | }
|
---|
4441 | else if (chOpen == '{')
|
---|
4442 | {
|
---|
4443 | for (;;)
|
---|
4444 | {
|
---|
4445 | if (cchWord < cchLeft)
|
---|
4446 | {
|
---|
4447 | char const ch = pchWord[cchWord++];
|
---|
4448 | if (!KMK_CC_EVAL_IS_PAREN_OR_SLASH(ch))
|
---|
4449 | { /* likely */ }
|
---|
4450 | else if (ch == '}')
|
---|
4451 | {
|
---|
4452 | if (--cOpens == 0)
|
---|
4453 | return cchWord;
|
---|
4454 | }
|
---|
4455 | else if (ch == '{')
|
---|
4456 | cOpens++;
|
---|
4457 | else if (ch == '\\')
|
---|
4458 | {
|
---|
4459 | unsigned const iEscEol = pCompiler->iEscEol;
|
---|
4460 | if ( iEscEol < pCompiler->cEscEols
|
---|
4461 | && (size_t)(&pchWord[cchWord] - pCompiler->pszContent) == pCompiler->paEscEols[iEscEol].offEsc)
|
---|
4462 | {
|
---|
4463 | cchWord += pCompiler->paEscEols[iEscEol].offEol
|
---|
4464 | - pCompiler->paEscEols[iEscEol].offEsc
|
---|
4465 | + pCompiler->cchEolSeq;
|
---|
4466 | pCompiler->iEscEol = iEscEol + 1;
|
---|
4467 | }
|
---|
4468 | }
|
---|
4469 | }
|
---|
4470 | else
|
---|
4471 | break;
|
---|
4472 | }
|
---|
4473 | }
|
---|
4474 | else
|
---|
4475 | return cchWord;
|
---|
4476 |
|
---|
4477 | /* Unterminated. */
|
---|
4478 | if (cOpens == 1)
|
---|
4479 | kmk_cc_eval_fatal(pCompiler, &pchWord[cchStart],
|
---|
4480 | "Variable reference is missing '%c'", chOpen == '(' ? ')' : '}');
|
---|
4481 | else
|
---|
4482 | kmk_cc_eval_fatal(pCompiler, &pchWord[cchStart],
|
---|
4483 | "%u variable references are missing '%c'", cOpens, chOpen == '(' ? ')' : '}');
|
---|
4484 | }
|
---|
4485 | else
|
---|
4486 | kmk_cc_eval_warn(pCompiler, &pchWord[cchWord - 1], "found '$' at end of line");
|
---|
4487 | return cchWord;
|
---|
4488 | }
|
---|
4489 |
|
---|
4490 |
|
---|
4491 | /**
|
---|
4492 | * Parses the remainder of the line into simple words.
|
---|
4493 | *
|
---|
4494 | * The resulting words are classified as either kKmkCcEvalToken_WordPlain,
|
---|
4495 | * kKmkCcEvalToken_WordWithDollar, or kKmkCcEvalToken_WordWithDollarAndEscEol.
|
---|
4496 | *
|
---|
4497 | * @returns Number of words.
|
---|
4498 | * @param pCompiler The compiler state.
|
---|
4499 | * @param pchWord Where to start, we expect this to be at a word.
|
---|
4500 | * @param cchLeft The number of chars left to parse on this line.
|
---|
4501 | * This is expected to be non-zero.
|
---|
4502 | */
|
---|
4503 | static unsigned kmk_cc_eval_parse_words(PKMKCCEVALCOMPILER pCompiler, const char *pchWord, size_t cchLeft)
|
---|
4504 | {
|
---|
4505 | unsigned iEscEol = pCompiler->iEscEol;
|
---|
4506 | unsigned cEscEols = pCompiler->cEscEols;
|
---|
4507 | unsigned cWords = 0;
|
---|
4508 |
|
---|
4509 | /* Precoditions. */
|
---|
4510 | KMK_CC_ASSERT(cchLeft > 0);
|
---|
4511 | KMK_CC_ASSERT(!KMK_CC_EVAL_IS_SPACE(*pchWord));
|
---|
4512 |
|
---|
4513 | /*
|
---|
4514 | * If we don't have to deal with escaped EOLs, the find-end-of word search
|
---|
4515 | * becomes a little bit simpler. Since this function will be used a lot
|
---|
4516 | * for simple lines with single words, this could maybe save a nano second
|
---|
4517 | * or two.
|
---|
4518 | */
|
---|
4519 | if (iEscEol >= cEscEols)
|
---|
4520 | {
|
---|
4521 | do
|
---|
4522 | {
|
---|
4523 | size_t cchSkipAfter = 0;
|
---|
4524 | size_t cchWord = 0;
|
---|
4525 | KMKCCEVALTOKEN enmToken = kKmkCcEvalToken_WordPlain;
|
---|
4526 |
|
---|
4527 | /* Find the end of the current word. */
|
---|
4528 | while (cchWord < cchLeft)
|
---|
4529 | {
|
---|
4530 | char ch = pchWord[cchWord];
|
---|
4531 | if (!KMK_CC_EVAL_IS_SPACE_OR_DOLLAR(ch))
|
---|
4532 | cchWord++;
|
---|
4533 | else if (ch == '$')
|
---|
4534 | {
|
---|
4535 | #ifdef XXXX
|
---|
4536 | cchWord = kmk_cc_eval_parse_var_exp(pCompiler, pchWord, cchLeft, cchWord);
|
---|
4537 | enmToken = kKmkCcEvalToken_WordWithDollar;
|
---|
4538 | #else
|
---|
4539 | enmToken = kKmkCcEvalToken_WordWithDollar;
|
---|
4540 | cchWord = kmk_cc_eval_parse_along_dollar_simple(pCompiler, cchWord, pchWord, cchLeft);
|
---|
4541 | #endif
|
---|
4542 | }
|
---|
4543 | else
|
---|
4544 | break;
|
---|
4545 | }
|
---|
4546 |
|
---|
4547 | /* Add the word. */
|
---|
4548 | KMK_CC_EVAL_ENSURE_WORDS(pCompiler, cWords + 1);
|
---|
4549 | pCompiler->paWords[cWords].pchWord = pchWord;
|
---|
4550 | pCompiler->paWords[cWords].cchWord = cchWord;
|
---|
4551 | pCompiler->paWords[cWords].enmToken = enmToken;
|
---|
4552 | cWords++;
|
---|
4553 |
|
---|
4554 | /* Skip the work and any trailing blanks. */
|
---|
4555 | cchWord += cchSkipAfter;
|
---|
4556 | pchWord += cchWord;
|
---|
4557 | cchLeft -= cchWord;
|
---|
4558 | KMK_CC_EVAL_SKIP_SPACES_AFTER_WORD(pCompiler, pchWord, cchLeft);
|
---|
4559 | } while (cchLeft > 0);
|
---|
4560 | }
|
---|
4561 | /*
|
---|
4562 | * Have to deal with escaped EOLs.
|
---|
4563 | */
|
---|
4564 | else
|
---|
4565 | {
|
---|
4566 | const char *pszContent = pCompiler->pszContent;
|
---|
4567 | do
|
---|
4568 | {
|
---|
4569 | size_t cchSkipAfter = 0;
|
---|
4570 | size_t cchWord = 0;
|
---|
4571 | KMKCCEVALTOKEN enmToken = kKmkCcEvalToken_WordPlain;
|
---|
4572 |
|
---|
4573 | /* Find the end of the current word. */
|
---|
4574 | while (cchWord < cchLeft)
|
---|
4575 | {
|
---|
4576 | char ch = pchWord[cchWord];
|
---|
4577 | if (!KMK_CC_EVAL_IS_SPACE_DOLLAR_OR_SLASH(ch))
|
---|
4578 | cchWord++;
|
---|
4579 | else if (ch == '$')
|
---|
4580 | #ifdef XXXX
|
---|
4581 | {
|
---|
4582 | const unsigned iEscEolBefore = pCompiler->iEscEol;
|
---|
4583 | cchWord = kmk_cc_eval_parse_var_exp(pCompiler, pchWord, cchLeft, cchWord);
|
---|
4584 | enmToken = pCompiler->iEscEol == iEscEolBefore
|
---|
4585 | ? kKmkCcEvalToken_WordWithDollar : kKmkCcEvalToken_WordWithDollarAndEscEol;
|
---|
4586 | }
|
---|
4587 | #else
|
---|
4588 | {
|
---|
4589 | enmToken = kKmkCcEvalToken_WordWithDollar;
|
---|
4590 | cchWord = kmk_cc_eval_parse_along_dollar_esc_eol(pCompiler, cchWord, pchWord, cchLeft);
|
---|
4591 | }
|
---|
4592 | #endif
|
---|
4593 | else if (ch != '\\')
|
---|
4594 | break;
|
---|
4595 | else if ((size_t)(&pchWord[cchWord] - pszContent) != pCompiler->paEscEols[iEscEol].offEsc)
|
---|
4596 | cchWord++;
|
---|
4597 | else
|
---|
4598 | {
|
---|
4599 | cchSkipAfter = pCompiler->paEscEols[iEscEol].offEol - pCompiler->paEscEols[iEscEol].offEsc
|
---|
4600 | + pCompiler->cchEolSeq;
|
---|
4601 | iEscEol++;
|
---|
4602 | break;
|
---|
4603 | }
|
---|
4604 | }
|
---|
4605 |
|
---|
4606 | /* Add the word. */
|
---|
4607 | KMK_CC_EVAL_ENSURE_WORDS(pCompiler, cWords + 1);
|
---|
4608 | pCompiler->paWords[cWords].pchWord = pchWord;
|
---|
4609 | pCompiler->paWords[cWords].cchWord = cchWord;
|
---|
4610 | pCompiler->paWords[cWords].enmToken = enmToken;
|
---|
4611 | cWords++;
|
---|
4612 |
|
---|
4613 | /* Skip the work and any trailing blanks. */
|
---|
4614 | cchWord += cchSkipAfter;
|
---|
4615 | pchWord += cchWord;
|
---|
4616 | cchLeft -= cchWord;
|
---|
4617 | KMK_CC_EVAL_SKIP_SPACES_AFTER_WORD(pCompiler, pchWord, cchLeft);
|
---|
4618 | } while (cchLeft > 0);
|
---|
4619 | }
|
---|
4620 | pCompiler->cWords = cWords;
|
---|
4621 | return cWords;
|
---|
4622 | }
|
---|
4623 |
|
---|
4624 |
|
---|
4625 | /**
|
---|
4626 | * Parses the remainder of the line into target words.
|
---|
4627 | *
|
---|
4628 | * The resulting words are classified as either kKmkCcEvalToken_WordPlain or
|
---|
4629 | * kKmkCcEvalToken_WordWithDollar.
|
---|
4630 | *
|
---|
4631 | * @returns Number of words.
|
---|
4632 | * @param pCompiler The compiler state.
|
---|
4633 | * @param pchWord Where to start, we expect this to be at a word.
|
---|
4634 | * @param cchLeft The number of chars left to parse on this line.
|
---|
4635 | * This is expected to be non-zero.
|
---|
4636 | */
|
---|
4637 | static unsigned kmk_cc_eval_parse_recipe_words(PKMKCCEVALCOMPILER pCompiler, const char *pchWord, size_t cchLeft)
|
---|
4638 | {
|
---|
4639 | unsigned iEscEol = pCompiler->iEscEol;
|
---|
4640 | unsigned cEscEols = pCompiler->cEscEols;
|
---|
4641 | unsigned cWords = 0;
|
---|
4642 |
|
---|
4643 | /* Precoditions. */
|
---|
4644 | KMK_CC_ASSERT(cchLeft > 0);
|
---|
4645 | KMK_CC_ASSERT(!KMK_CC_EVAL_IS_SPACE(*pchWord));
|
---|
4646 |
|
---|
4647 | /*
|
---|
4648 | * If we don't have to deal with escaped EOLs, the find-end-of word search
|
---|
4649 | * becomes a little bit simpler. Since this function will be used a lot
|
---|
4650 | * for simple lines with single words, this could maybe save a nano second
|
---|
4651 | * or two.
|
---|
4652 | */
|
---|
4653 | if (iEscEol >= cEscEols)
|
---|
4654 | {
|
---|
4655 | do
|
---|
4656 | {
|
---|
4657 | size_t cchSkipAfter = 0;
|
---|
4658 | size_t cchWord = 0;
|
---|
4659 | KMKCCEVALTOKEN enmToken = kKmkCcEvalToken_WordPlain;
|
---|
4660 |
|
---|
4661 | /* Find the end of the current word. */
|
---|
4662 | while (cchWord < cchLeft)
|
---|
4663 | {
|
---|
4664 | char ch = pchWord[cchWord];
|
---|
4665 | if (!KMK_CC_EVAL_IS_SPACE_OR_DOLLAR(ch))
|
---|
4666 | cchWord++;
|
---|
4667 | else if (ch == '$')
|
---|
4668 | {
|
---|
4669 | enmToken = kKmkCcEvalToken_WordWithDollar;
|
---|
4670 | cchWord = kmk_cc_eval_parse_along_dollar_simple(pCompiler, cchWord, pchWord, cchLeft);
|
---|
4671 | }
|
---|
4672 | else
|
---|
4673 | break;
|
---|
4674 | }
|
---|
4675 |
|
---|
4676 | /* Add the word. */
|
---|
4677 | KMK_CC_EVAL_ENSURE_WORDS(pCompiler, cWords + 1);
|
---|
4678 | pCompiler->paWords[cWords].pchWord = pchWord;
|
---|
4679 | pCompiler->paWords[cWords].cchWord = cchWord;
|
---|
4680 | pCompiler->paWords[cWords].enmToken = enmToken;
|
---|
4681 | cWords++;
|
---|
4682 |
|
---|
4683 | /* Skip the work and any trailing blanks. */
|
---|
4684 | cchWord += cchSkipAfter;
|
---|
4685 | pchWord += cchWord;
|
---|
4686 | cchLeft -= cchWord;
|
---|
4687 | KMK_CC_EVAL_SKIP_SPACES_AFTER_WORD(pCompiler, pchWord, cchLeft);
|
---|
4688 | } while (cchLeft > 0);
|
---|
4689 | }
|
---|
4690 | /*
|
---|
4691 | * Have to deal with escaped EOLs.
|
---|
4692 | */
|
---|
4693 | else
|
---|
4694 | {
|
---|
4695 | const char *pszContent = pCompiler->pszContent;
|
---|
4696 | do
|
---|
4697 | {
|
---|
4698 | size_t cchSkipAfter = 0;
|
---|
4699 | size_t cchWord = 0;
|
---|
4700 | KMKCCEVALTOKEN enmToken = kKmkCcEvalToken_WordPlain;
|
---|
4701 |
|
---|
4702 | /* Find the end of the current word. */
|
---|
4703 | while (cchWord < cchLeft)
|
---|
4704 | {
|
---|
4705 | char ch = pchWord[cchWord];
|
---|
4706 | if (!KMK_CC_EVAL_IS_SPACE_DOLLAR_OR_SLASH(ch))
|
---|
4707 | cchWord++;
|
---|
4708 | else if (ch == '$')
|
---|
4709 | {
|
---|
4710 | enmToken = kKmkCcEvalToken_WordWithDollar;
|
---|
4711 | cchWord = kmk_cc_eval_parse_along_dollar_esc_eol(pCompiler, cchWord, pchWord, cchLeft);
|
---|
4712 | }
|
---|
4713 | else if (ch != '\\')
|
---|
4714 | break;
|
---|
4715 | else if ((size_t)(&pchWord[cchWord] - pszContent) != pCompiler->paEscEols[iEscEol].offEsc)
|
---|
4716 | cchWord++;
|
---|
4717 | else
|
---|
4718 | {
|
---|
4719 | cchSkipAfter = pCompiler->paEscEols[iEscEol].offEol - pCompiler->paEscEols[iEscEol].offEsc
|
---|
4720 | + pCompiler->cchEolSeq;
|
---|
4721 | iEscEol++;
|
---|
4722 | break;
|
---|
4723 | }
|
---|
4724 | }
|
---|
4725 |
|
---|
4726 | /* Add the word. */
|
---|
4727 | KMK_CC_EVAL_ENSURE_WORDS(pCompiler, cWords + 1);
|
---|
4728 | pCompiler->paWords[cWords].pchWord = pchWord;
|
---|
4729 | pCompiler->paWords[cWords].cchWord = cchWord;
|
---|
4730 | pCompiler->paWords[cWords].enmToken = enmToken;
|
---|
4731 | cWords++;
|
---|
4732 |
|
---|
4733 | /* Skip the work and any trailing blanks. */
|
---|
4734 | cchWord += cchSkipAfter;
|
---|
4735 | pchWord += cchWord;
|
---|
4736 | cchLeft -= cchWord;
|
---|
4737 | KMK_CC_EVAL_SKIP_SPACES_AFTER_WORD(pCompiler, pchWord, cchLeft);
|
---|
4738 | } while (cchLeft > 0);
|
---|
4739 | }
|
---|
4740 | pCompiler->cWords = cWords;
|
---|
4741 | return cWords;
|
---|
4742 | }
|
---|
4743 |
|
---|
4744 |
|
---|
4745 |
|
---|
4746 |
|
---|
4747 | /**
|
---|
4748 | * Gather string from segments and optional space insertion trick.
|
---|
4749 | *
|
---|
4750 | * @param pszDst The destination buffer.
|
---|
4751 | * @param paSegs The source segments.
|
---|
4752 | * @param cSegs The number of segments.
|
---|
4753 | * @param cchDstPrepped The size of pszDst, excluding the terminator.
|
---|
4754 | */
|
---|
4755 | static void kmk_cc_eval_strcpyv(char *pszDst, PCKMKCCEVALSTRCPYSEG paSegs, unsigned cSegs, size_t cchDstPrepped)
|
---|
4756 | {
|
---|
4757 | const char *pszDstStart = pszDst;
|
---|
4758 | unsigned iSeg = 0;
|
---|
4759 | while (iSeg < cSegs)
|
---|
4760 | {
|
---|
4761 | size_t cchToCopy;
|
---|
4762 | if (paSegs[iSeg].cchSrcAndPrependSpace >= 0)
|
---|
4763 | cchToCopy = paSegs[iSeg].cchSrcAndPrependSpace;
|
---|
4764 | else
|
---|
4765 | {
|
---|
4766 | cchToCopy = -paSegs[iSeg].cchSrcAndPrependSpace;
|
---|
4767 | *pszDst++ = ' ';
|
---|
4768 | }
|
---|
4769 |
|
---|
4770 | memcpy(pszDst, paSegs[iSeg].pchSrc, cchToCopy);
|
---|
4771 | pszDst += cchToCopy;
|
---|
4772 |
|
---|
4773 | iSeg++;
|
---|
4774 | }
|
---|
4775 | *pszDst = '\0';
|
---|
4776 | KMK_CC_ASSERT(pszDst == &pszDstStart[cchDstPrepped]); K_NOREF(pszDstStart); K_NOREF(cchDstPrepped);
|
---|
4777 | }
|
---|
4778 |
|
---|
4779 |
|
---|
4780 | /**
|
---|
4781 | * Allocate a byte buffer and ocpy the prepared string segments into it.
|
---|
4782 | *
|
---|
4783 | * The caller must call kmk_cc_block_realign!
|
---|
4784 | *
|
---|
4785 | * @returns Pointer to the duplicated string.
|
---|
4786 | * @param pCompiler The compiler instance data.
|
---|
4787 | * @param cchPrepped The length of the prepped string segments.
|
---|
4788 | */
|
---|
4789 | static char *kmk_cc_eval_strdup_prepped(PKMKCCEVALCOMPILER pCompiler, size_t cchPrepped)
|
---|
4790 | {
|
---|
4791 | char *pszCopy = kmk_cc_block_byte_alloc(pCompiler->ppBlockTail, cchPrepped + 1);
|
---|
4792 | kmk_cc_eval_strcpyv(pszCopy, pCompiler->paStrCopySegs, pCompiler->cStrCopySegs, cchPrepped);
|
---|
4793 | return pszCopy;
|
---|
4794 | }
|
---|
4795 |
|
---|
4796 |
|
---|
4797 | /**
|
---|
4798 | * Strip trailing spaces from prepped copy
|
---|
4799 | *
|
---|
4800 | * @param paSegs The segments to strip trailing chars from.
|
---|
4801 | * @param pcSegs The number of segments (in/out).
|
---|
4802 | * @param pcchDstPrepped The total number of chars prepped (in/out).
|
---|
4803 | */
|
---|
4804 | static void kmk_cc_eval_strip_right_v(PKMKCCEVALSTRCPYSEG paSegs, unsigned *pcSegs, size_t *pcchDstPrepped)
|
---|
4805 | {
|
---|
4806 | /*
|
---|
4807 | * Work our way thru the segments, from the end obviously.
|
---|
4808 | */
|
---|
4809 | size_t cchDstPrepped = *pcchDstPrepped;
|
---|
4810 | unsigned cSegs = *pcSegs;
|
---|
4811 | while (cSegs > 0)
|
---|
4812 | {
|
---|
4813 | unsigned iSeg = cSegs - 1;
|
---|
4814 | const char *pszSrc = paSegs[iSeg].pchSrc;
|
---|
4815 | size_t cchSrc = paSegs[iSeg].cchSrcAndPrependSpace >= 0
|
---|
4816 | ? paSegs[iSeg].cchSrcAndPrependSpace : -paSegs[iSeg].cchSrcAndPrependSpace;
|
---|
4817 | if (cchSrc)
|
---|
4818 | {
|
---|
4819 | /*
|
---|
4820 | * Check for trailing spaces.
|
---|
4821 | */
|
---|
4822 | size_t cchSrcOrg;
|
---|
4823 | if (!KMK_CC_EVAL_IS_SPACE(pszSrc[cchSrc - 1]))
|
---|
4824 | {
|
---|
4825 | /* Special case: No trailing spaces at all. No need to update
|
---|
4826 | input/output variables. */
|
---|
4827 | if (cSegs == *pcSegs)
|
---|
4828 | return;
|
---|
4829 | break;
|
---|
4830 | }
|
---|
4831 |
|
---|
4832 | /* Skip the rest of the trailing spaces. */
|
---|
4833 | cchSrcOrg = cchSrc;
|
---|
4834 | do
|
---|
4835 | cchSrc--;
|
---|
4836 | while (cchSrc > 0 && KMK_CC_EVAL_IS_SPACE(pszSrc[cchSrc - 1]));
|
---|
4837 |
|
---|
4838 | if (cchSrc > 0)
|
---|
4839 | {
|
---|
4840 | /*
|
---|
4841 | * There are non-space chars in this segment. So, update the
|
---|
4842 | * segment and total char count and we're done.
|
---|
4843 | */
|
---|
4844 | cchDstPrepped -= cchSrcOrg - cchSrc;
|
---|
4845 | if (paSegs[iSeg].cchSrcAndPrependSpace < 0)
|
---|
4846 | paSegs[iSeg].cchSrcAndPrependSpace = -(ssize_t)cchSrc;
|
---|
4847 | else
|
---|
4848 | paSegs[iSeg].cchSrcAndPrependSpace = cchSrc;
|
---|
4849 | break;
|
---|
4850 | }
|
---|
4851 |
|
---|
4852 | /*
|
---|
4853 | * Skip the whole segment.
|
---|
4854 | */
|
---|
4855 | cchDstPrepped -= cchSrcOrg + (paSegs[iSeg].cchSrcAndPrependSpace < 0);
|
---|
4856 | }
|
---|
4857 | cSegs--;
|
---|
4858 | }
|
---|
4859 | *pcchDstPrepped = cchDstPrepped;
|
---|
4860 | *pcSegs = cSegs;
|
---|
4861 | }
|
---|
4862 |
|
---|
4863 | /**
|
---|
4864 | * Helper for ensuring that we've got sufficient number of string copy segments.
|
---|
4865 | */
|
---|
4866 | #define KMK_CC_EVAL_ENSURE_STRCOPY_SEGS(a_pCompiler, a_cRequiredSegs) \
|
---|
4867 | do { \
|
---|
4868 | if ((a_cRequiredSegs) < (a_pCompiler)->cStrCopySegsAllocated) \
|
---|
4869 | { /* likely */ } \
|
---|
4870 | else \
|
---|
4871 | { \
|
---|
4872 | unsigned cEnsureSegs = ((a_cRequiredSegs) + 3 /*15*/) & ~(unsigned)3/*15*/; \
|
---|
4873 | KMK_CC_ASSERT((a_cRequiredSegs) < 0x8000); \
|
---|
4874 | (a_pCompiler)->paStrCopySegs = (PKMKCCEVALSTRCPYSEG)xmalloc(cEnsureSegs * sizeof((a_pCompiler)->paStrCopySegs)[0]); \
|
---|
4875 | } \
|
---|
4876 | } while (0)
|
---|
4877 |
|
---|
4878 |
|
---|
4879 | /**
|
---|
4880 | * Prepares for copying a normal line, extended version.
|
---|
4881 | *
|
---|
4882 | * This does not assume that we start on a word, it can handle any starting
|
---|
4883 | * character. It can also prepare partial copies.
|
---|
4884 | *
|
---|
4885 | * In addition to the returned information, this will store instruction in
|
---|
4886 | * paEscEols for the following kmk_cc_eval_strcpyv() call.
|
---|
4887 | *
|
---|
4888 | * This will advance pCompiler->iEscEol, so that it's possible to use the common
|
---|
4889 | * macros and helpers for parsing what comes afterwards.
|
---|
4890 | *
|
---|
4891 | * @returns The number of chars that will be copied by kmk_cc_eval_strcpyv().
|
---|
4892 | * @param pCompiler The compiler instance data.
|
---|
4893 | * @param pchWord Pointer to the first char to copy from the
|
---|
4894 | * current line. This must be the start of a
|
---|
4895 | * word.
|
---|
4896 | * @param cchLeft The number of chars left on the current line
|
---|
4897 | * starting at @a pchWord.
|
---|
4898 | */
|
---|
4899 | static size_t kmk_cc_eval_prep_normal_line_ex(PKMKCCEVALCOMPILER pCompiler, const char * const pchWord, size_t cchLeft)
|
---|
4900 | {
|
---|
4901 | size_t cchRet;
|
---|
4902 | unsigned iEscEol = pCompiler->iEscEol;
|
---|
4903 | unsigned const cEscEols = pCompiler->cEscEols;
|
---|
4904 |
|
---|
4905 | KMK_CC_ASSERT(iEscEol <= cEscEols);
|
---|
4906 |
|
---|
4907 | if (cchLeft > 0)
|
---|
4908 | {
|
---|
4909 | /*
|
---|
4910 | * If there are no escaped EOLs left, just copy exactly
|
---|
4911 | * what was passed in.
|
---|
4912 | */
|
---|
4913 | if (iEscEol >= cEscEols)
|
---|
4914 | {
|
---|
4915 | KMK_CC_EVAL_ENSURE_STRCOPY_SEGS(pCompiler, 1);
|
---|
4916 | pCompiler->cStrCopySegs = 1;
|
---|
4917 | pCompiler->paStrCopySegs[0].pchSrc = pchWord;
|
---|
4918 | pCompiler->paStrCopySegs[0].cchSrcAndPrependSpace = cchRet = cchLeft;
|
---|
4919 | }
|
---|
4920 | /*
|
---|
4921 | * Ok, we have to deal with escaped EOLs and do the proper
|
---|
4922 | * replacement of escaped newlines with space. The deal is that we
|
---|
4923 | * collaps all whitespace before and after one or more newlines into a
|
---|
4924 | * single space. (FreeBSD make does this differently, by the by.)
|
---|
4925 | */
|
---|
4926 | else
|
---|
4927 | {
|
---|
4928 | const char * const pszContent = pCompiler->pszContent;
|
---|
4929 | size_t offWord = pchWord - pCompiler->pszContent;
|
---|
4930 | size_t const offLineEnd = offWord + cchLeft; /* Note! Not necessarily end of line.*/
|
---|
4931 | size_t offEsc;
|
---|
4932 | size_t fPendingSpace = 0;
|
---|
4933 | unsigned cSegs = 0;
|
---|
4934 | size_t cchSeg;
|
---|
4935 |
|
---|
4936 | /* Go nuts checking our preconditions here. */
|
---|
4937 | KMK_CC_ASSERT(offWord >= pCompiler->offLine);
|
---|
4938 | KMK_CC_ASSERT(offWord + cchLeft <= pCompiler->offLine + pCompiler->cchLine);
|
---|
4939 | KMK_CC_ASSERT(offWord + cchLeft <= pCompiler->cchContent);
|
---|
4940 | KMK_CC_ASSERT(offWord <= pCompiler->paEscEols[iEscEol].offEsc);
|
---|
4941 | KMK_CC_ASSERT(offWord >= (iEscEol ? pCompiler->paEscEols[cEscEols - 1].offEol + pCompiler->cchEolSeq
|
---|
4942 | : pCompiler->offLine));
|
---|
4943 | KMK_CC_ASSERT(offWord < offLineEnd);
|
---|
4944 |
|
---|
4945 | /* Make sure we've got more than enough segments to fill in. */
|
---|
4946 | KMK_CC_EVAL_ENSURE_STRCOPY_SEGS(pCompiler, cEscEols - iEscEol + 2);
|
---|
4947 |
|
---|
4948 | /*
|
---|
4949 | * All but the last line.
|
---|
4950 | */
|
---|
4951 | cchRet = 0;
|
---|
4952 | do
|
---|
4953 | {
|
---|
4954 | KMK_CC_ASSERT(offWord < offLineEnd);
|
---|
4955 | offEsc = pCompiler->paEscEols[iEscEol].offEsc;
|
---|
4956 | if (offWord < offEsc)
|
---|
4957 | {
|
---|
4958 | /* Strip trailing spaces. */
|
---|
4959 | while (offEsc > offWord && KMK_CC_EVAL_IS_SPACE(pszContent[offEsc - 1]))
|
---|
4960 | offEsc--;
|
---|
4961 | cchSeg = offEsc - offWord;
|
---|
4962 | if (cchSeg)
|
---|
4963 | {
|
---|
4964 | /* Add segment. */
|
---|
4965 | pCompiler->paStrCopySegs[cSegs].pchSrc = &pszContent[offWord];
|
---|
4966 | if (offEsc < offLineEnd)
|
---|
4967 | {
|
---|
4968 | pCompiler->paStrCopySegs[cSegs].cchSrcAndPrependSpace = fPendingSpace
|
---|
4969 | ? -(ssize_t)cchSeg : (ssize_t)cchSeg;
|
---|
4970 | cchRet += cchSeg + fPendingSpace;
|
---|
4971 | cSegs += 1;
|
---|
4972 | fPendingSpace = 1;
|
---|
4973 | }
|
---|
4974 | else
|
---|
4975 | {
|
---|
4976 | cchSeg = offLineEnd - offWord;
|
---|
4977 | pCompiler->paStrCopySegs[cSegs].cchSrcAndPrependSpace = fPendingSpace
|
---|
4978 | ? -(ssize_t)cchSeg : (ssize_t)cchSeg;
|
---|
4979 | pCompiler->cStrCopySegs = cSegs + 1;
|
---|
4980 | pCompiler->iEscEol = iEscEol;
|
---|
4981 | return cchRet + cchSeg + fPendingSpace;
|
---|
4982 | }
|
---|
4983 | }
|
---|
4984 | }
|
---|
4985 | else
|
---|
4986 | KMK_CC_ASSERT(offWord == offEsc);
|
---|
4987 |
|
---|
4988 | /* Next line. */
|
---|
4989 | offWord = pCompiler->paEscEols[iEscEol].offEol + pCompiler->cchEolSeq;
|
---|
4990 | iEscEol++;
|
---|
4991 |
|
---|
4992 | /* Strip leading spaces. */
|
---|
4993 | while (offWord < offLineEnd && KMK_CC_EVAL_IS_SPACE(pszContent[offWord]))
|
---|
4994 | offWord++;
|
---|
4995 | if (offWord >= offLineEnd)
|
---|
4996 | {
|
---|
4997 | pCompiler->cStrCopySegs = cSegs;
|
---|
4998 | pCompiler->iEscEol = iEscEol;
|
---|
4999 | return cchRet;
|
---|
5000 | }
|
---|
5001 | } while (iEscEol < cEscEols);
|
---|
5002 |
|
---|
5003 | /*
|
---|
5004 | * The last line.
|
---|
5005 | */
|
---|
5006 | cchSeg = offLineEnd - offWord;
|
---|
5007 | cchRet += cchSeg;
|
---|
5008 | pCompiler->paStrCopySegs[cSegs].pchSrc = &pszContent[offWord];
|
---|
5009 | pCompiler->paStrCopySegs[cSegs].cchSrcAndPrependSpace = fPendingSpace
|
---|
5010 | ? -(ssize_t)cchSeg : (ssize_t)cchSeg;
|
---|
5011 | pCompiler->cStrCopySegs = cSegs + 1;
|
---|
5012 | pCompiler->iEscEol = iEscEol;
|
---|
5013 | }
|
---|
5014 | }
|
---|
5015 | /*
|
---|
5016 | * Odd case: Nothing to copy.
|
---|
5017 | */
|
---|
5018 | else
|
---|
5019 | {
|
---|
5020 | cchRet = 0;
|
---|
5021 | pCompiler->cStrCopySegs = 0;
|
---|
5022 | }
|
---|
5023 | return cchRet;
|
---|
5024 | }
|
---|
5025 |
|
---|
5026 |
|
---|
5027 | /**
|
---|
5028 | * Prepares for copying a normal line, from the given position all the way to
|
---|
5029 | * the end.
|
---|
5030 | *
|
---|
5031 | * In addition to the returned information, this will store instruction in
|
---|
5032 | * paStrCopySegs and cSTrCopySeg for the following kmk_cc_eval_strcpyv() call.
|
---|
5033 | *
|
---|
5034 | * @returns The number of chars that will be copied by kmk_cc_eval_strcpyv().
|
---|
5035 | * @param pCompiler The compiler instance data.
|
---|
5036 | * @param pchWord Pointer to the first char to copy from the
|
---|
5037 | * current line. This must be the start of a
|
---|
5038 | * word.
|
---|
5039 | * @param cchLeft The number of chars left on the current line
|
---|
5040 | * starting at @a pchWord.
|
---|
5041 | */
|
---|
5042 | static size_t kmk_cc_eval_prep_normal_line(PKMKCCEVALCOMPILER pCompiler, const char * const pchWord, size_t cchLeft)
|
---|
5043 | {
|
---|
5044 | size_t cchRet;
|
---|
5045 | unsigned iEscEol = pCompiler->iEscEol;
|
---|
5046 | unsigned const cEscEols = pCompiler->cEscEols;
|
---|
5047 |
|
---|
5048 | KMK_CC_ASSERT(cchLeft > 0);
|
---|
5049 | KMK_CC_ASSERT(!KMK_CC_EVAL_IS_SPACE(*pchWord)); /* The fact that we're standing at a word, is exploited below. */
|
---|
5050 | KMK_CC_ASSERT(iEscEol <= cEscEols);
|
---|
5051 |
|
---|
5052 | /*
|
---|
5053 | * If there are no escaped EOLs left, just copy what was specified,
|
---|
5054 | * optionally sans any trailing spaces.
|
---|
5055 | */
|
---|
5056 | if (iEscEol >= cEscEols)
|
---|
5057 | {
|
---|
5058 | cchRet = cchLeft;
|
---|
5059 |
|
---|
5060 | KMK_CC_EVAL_ENSURE_STRCOPY_SEGS(pCompiler, 1);
|
---|
5061 | pCompiler->cStrCopySegs = 1;
|
---|
5062 | pCompiler->paStrCopySegs[0].pchSrc = pchWord;
|
---|
5063 | pCompiler->paStrCopySegs[0].cchSrcAndPrependSpace = cchRet;
|
---|
5064 | }
|
---|
5065 | /*
|
---|
5066 | * Ok, we have to deal with escaped EOLs and do the proper
|
---|
5067 | * replacement of escaped newlines with space. The deal is that we
|
---|
5068 | * collaps all whitespace before and after one or more newlines into a
|
---|
5069 | * single space. (FreeBSD make does this differently, by the by.)
|
---|
5070 | */
|
---|
5071 | else
|
---|
5072 | {
|
---|
5073 | const char *pszContent = pCompiler->pszContent;
|
---|
5074 | size_t offWord = pchWord - pCompiler->pszContent;
|
---|
5075 | size_t offEsc;
|
---|
5076 | size_t fPendingSpace;
|
---|
5077 | size_t cchSeg;
|
---|
5078 | unsigned cSegs = 0;
|
---|
5079 |
|
---|
5080 | /* Go nuts checking our preconditions here. */
|
---|
5081 | KMK_CC_ASSERT(offWord >= pCompiler->offLine);
|
---|
5082 | KMK_CC_ASSERT(offWord + cchLeft <= pCompiler->offLine + pCompiler->cchLine);
|
---|
5083 | KMK_CC_ASSERT(offWord + cchLeft <= pCompiler->cchContent);
|
---|
5084 | KMK_CC_ASSERT(offWord < pCompiler->paEscEols[iEscEol].offEsc);
|
---|
5085 | KMK_CC_ASSERT(offWord >= (iEscEol ? pCompiler->paEscEols[iEscEol - 1].offEol + pCompiler->cchEolSeq : pCompiler->offLine));
|
---|
5086 |
|
---|
5087 | /* Make sure we've got more than enough segments to fill in. */
|
---|
5088 | KMK_CC_EVAL_ENSURE_STRCOPY_SEGS(pCompiler, cEscEols - iEscEol + 2);
|
---|
5089 |
|
---|
5090 | /*
|
---|
5091 | * First line - We're at the start of a word, so no left stripping needed.
|
---|
5092 | */
|
---|
5093 | offEsc = pCompiler->paEscEols[iEscEol].offEsc;
|
---|
5094 | KMK_CC_ASSERT(offEsc > offWord);
|
---|
5095 | while (KMK_CC_EVAL_IS_SPACE(pszContent[offEsc - 1]))
|
---|
5096 | offEsc--;
|
---|
5097 | KMK_CC_ASSERT(offEsc > offWord);
|
---|
5098 |
|
---|
5099 | fPendingSpace = 1;
|
---|
5100 | cchRet = offEsc - offWord;
|
---|
5101 | pCompiler->paStrCopySegs[cSegs].cchSrcAndPrependSpace = cchRet;
|
---|
5102 | pCompiler->paStrCopySegs[cSegs].pchSrc = pchWord;
|
---|
5103 | cSegs++;
|
---|
5104 |
|
---|
5105 | offWord = pCompiler->paEscEols[iEscEol].offEol + pCompiler->cchEolSeq;
|
---|
5106 | iEscEol++;
|
---|
5107 |
|
---|
5108 | /*
|
---|
5109 | * All but the last line.
|
---|
5110 | */
|
---|
5111 | while (iEscEol < cEscEols)
|
---|
5112 | {
|
---|
5113 | offEsc = pCompiler->paEscEols[iEscEol].offEsc;
|
---|
5114 |
|
---|
5115 | /* Strip leading spaces. */
|
---|
5116 | while (offWord < offEsc && KMK_CC_EVAL_IS_SPACE(pszContent[offWord]))
|
---|
5117 | offWord++;
|
---|
5118 |
|
---|
5119 | if (offWord < offEsc)
|
---|
5120 | {
|
---|
5121 | /* Strip trailing spaces. */
|
---|
5122 | while (KMK_CC_EVAL_IS_SPACE(pszContent[offEsc - 1]))
|
---|
5123 | offEsc--;
|
---|
5124 | cchSeg = offEsc - offWord;
|
---|
5125 | pCompiler->paStrCopySegs[cSegs].cchSrcAndPrependSpace = fPendingSpace ? -(ssize_t)cchSeg : (ssize_t)cchSeg;
|
---|
5126 | cchRet += cchSeg + fPendingSpace;
|
---|
5127 | pCompiler->paStrCopySegs[cSegs].pchSrc = &pszContent[offWord];
|
---|
5128 | cSegs += 1;
|
---|
5129 | fPendingSpace = 1;
|
---|
5130 | }
|
---|
5131 |
|
---|
5132 | /* Next. */
|
---|
5133 | offWord = pCompiler->paEscEols[iEscEol].offEol + pCompiler->cchEolSeq;
|
---|
5134 | iEscEol++;
|
---|
5135 | }
|
---|
5136 |
|
---|
5137 | /*
|
---|
5138 | * Final line. We must calculate the end of line offset our selves here.
|
---|
5139 | */
|
---|
5140 | offEsc = &pchWord[cchLeft] - pszContent;
|
---|
5141 | while (offWord < offEsc && KMK_CC_EVAL_IS_SPACE(pszContent[offWord]))
|
---|
5142 | offWord++;
|
---|
5143 |
|
---|
5144 | if (offWord < offEsc)
|
---|
5145 | {
|
---|
5146 | cchSeg = offEsc - offWord;
|
---|
5147 | pCompiler->paStrCopySegs[cSegs].cchSrcAndPrependSpace = fPendingSpace ? -(ssize_t)cchSeg : (ssize_t)cchSeg;
|
---|
5148 | cchRet += cchSeg + fPendingSpace;
|
---|
5149 | pCompiler->paStrCopySegs[cSegs].pchSrc = &pszContent[offWord];
|
---|
5150 | cSegs += 1;
|
---|
5151 | }
|
---|
5152 |
|
---|
5153 | pCompiler->cStrCopySegs = cSegs;
|
---|
5154 | }
|
---|
5155 | return cchRet;
|
---|
5156 | }
|
---|
5157 |
|
---|
5158 |
|
---|
5159 | /**
|
---|
5160 | * Common worker for all kmk_cc_eval_do_if*() functions.
|
---|
5161 | *
|
---|
5162 | * @param pCompiler The compiler state.
|
---|
5163 | * @param pIfCore The new IF statement.
|
---|
5164 | * @param fInElse Set if this is an 'else if' (rather than just 'if').
|
---|
5165 | */
|
---|
5166 | static void kmk_cc_eval_do_if_core(PKMKCCEVALCOMPILER pCompiler, PKMKCCEVALIFCORE pIfCore, int fInElse)
|
---|
5167 | {
|
---|
5168 | unsigned iIf = pCompiler->cIfs;
|
---|
5169 | if (!fInElse)
|
---|
5170 | {
|
---|
5171 | /* Push an IF statement. */
|
---|
5172 | if (iIf < KMK_CC_EVAL_MAX_IF_DEPTH)
|
---|
5173 | {
|
---|
5174 | pCompiler->cIfs = iIf + 1;
|
---|
5175 | pCompiler->apIfs[iIf] = pIfCore;
|
---|
5176 | pIfCore->pPrevCond = NULL;
|
---|
5177 | }
|
---|
5178 | else
|
---|
5179 | kmk_cc_eval_fatal(pCompiler, NULL, "Too deep IF nesting");
|
---|
5180 | }
|
---|
5181 | else if (iIf > 0)
|
---|
5182 | {
|
---|
5183 | /* Link an IF statement. */
|
---|
5184 | iIf--;
|
---|
5185 | pIfCore->pPrevCond = pCompiler->apIfs[iIf];
|
---|
5186 | pCompiler->apIfs[iIf] = pIfCore;
|
---|
5187 | }
|
---|
5188 | else
|
---|
5189 | kmk_cc_eval_fatal(pCompiler, NULL, "'else if' without 'if'");
|
---|
5190 | pIfCore->pNextTrue = (PKMKCCEVALCORE)kmk_cc_block_get_next_ptr(*pCompiler->ppBlockTail);
|
---|
5191 | pIfCore->pNextFalse = NULL; /* This is set by else or endif. */
|
---|
5192 | pIfCore->pTrueEndJump = NULL; /* This is set by else or endif. */
|
---|
5193 | }
|
---|
5194 |
|
---|
5195 |
|
---|
5196 | /**
|
---|
5197 | * Deals with 'if expr' and 'else if expr' statements.
|
---|
5198 | *
|
---|
5199 | * @returns 1 to indicate we've handled a keyword (see
|
---|
5200 | * kmk_cc_eval_try_handle_keyword).
|
---|
5201 | * @param pCompiler The compiler state.
|
---|
5202 | * @param pchWord First char after 'if'.
|
---|
5203 | * @param cchLeft The number of chars left to parse on this line.
|
---|
5204 | * @param fInElse Set if this is an 'else if' (rather than just 'if').
|
---|
5205 | */
|
---|
5206 | static int kmk_cc_eval_do_if(PKMKCCEVALCOMPILER pCompiler, const char *pchWord, size_t cchLeft, int fInElse)
|
---|
5207 | {
|
---|
5208 | KMK_CC_EVAL_SKIP_SPACES_AFTER_WORD(pCompiler, pchWord, cchLeft);
|
---|
5209 | if (cchLeft)
|
---|
5210 | {
|
---|
5211 | PKMKCCEVALIFEXPR pInstr;
|
---|
5212 | size_t cchExpr = kmk_cc_eval_prep_normal_line(pCompiler, pchWord, cchLeft);
|
---|
5213 | kmk_cc_eval_strip_right_v(pCompiler->paStrCopySegs, &pCompiler->cStrCopySegs, &cchExpr);
|
---|
5214 |
|
---|
5215 | pInstr = (PKMKCCEVALIFEXPR)kmk_cc_block_alloc_eval(pCompiler->ppBlockTail, KMKCCEVALIFEXPR_SIZE(cchExpr));
|
---|
5216 | kmk_cc_eval_strcpyv(pInstr->szExpr, pCompiler->paStrCopySegs, pCompiler->cStrCopySegs, cchExpr);
|
---|
5217 | pInstr->cchExpr = cchExpr;
|
---|
5218 | pInstr->IfCore.Core.enmOpcode = kKmkCcEvalInstr_if;
|
---|
5219 | pInstr->IfCore.Core.iLine = pCompiler->iLine;
|
---|
5220 | kmk_cc_eval_do_if_core(pCompiler, &pInstr->IfCore, fInElse);
|
---|
5221 | }
|
---|
5222 | else
|
---|
5223 | kmk_cc_eval_fatal(pCompiler, pchWord, "Expected expression after 'if' directive");
|
---|
5224 | return 1;
|
---|
5225 | }
|
---|
5226 |
|
---|
5227 |
|
---|
5228 | /**
|
---|
5229 | * Deals with 'ifdef var', 'ifndef var', 'else ifdef var' and 'else ifndef var'
|
---|
5230 | * statements.
|
---|
5231 | *
|
---|
5232 | * @returns 1 to indicate we've handled a keyword (see
|
---|
5233 | * kmk_cc_eval_try_handle_keyword).
|
---|
5234 | * @param pCompiler The compiler state.
|
---|
5235 | * @param pchWord First char after 'if[n]def'.
|
---|
5236 | * @param cchLeft The number of chars left to parse on this line.
|
---|
5237 | * @param fInElse Set if this is an 'else if' (rather than just 'if').
|
---|
5238 | * @param fPositiveStmt Set if 'ifdef', clear if 'ifndef'.
|
---|
5239 | */
|
---|
5240 | static int kmk_cc_eval_do_ifdef(PKMKCCEVALCOMPILER pCompiler, const char *pchWord, size_t cchLeft, int fInElse, int fPositiveStmt)
|
---|
5241 | {
|
---|
5242 | KMK_CC_EVAL_SKIP_SPACES_AFTER_WORD(pCompiler, pchWord, cchLeft);
|
---|
5243 | if (cchLeft)
|
---|
5244 | {
|
---|
5245 | /*
|
---|
5246 | * Skip to the end of the variable name.
|
---|
5247 | * GNU make just does normal word parsing, so lets do that too.
|
---|
5248 | */
|
---|
5249 | unsigned const iSavedEscEol = pCompiler->iEscEol;
|
---|
5250 | unsigned cWords = kmk_cc_eval_parse_words(pCompiler, pchWord, cchLeft);
|
---|
5251 | if (cWords == 0)
|
---|
5252 | {
|
---|
5253 | PCKMKCCEVALWORD pWord = pCompiler->paWords;
|
---|
5254 | if (pWord->enmToken == kKmkCcEvalToken_WordPlain)
|
---|
5255 | {
|
---|
5256 | PKMKCCEVALIFDEFPLAIN pInstr;
|
---|
5257 | pInstr = (PKMKCCEVALIFDEFPLAIN)kmk_cc_block_alloc_eval(pCompiler->ppBlockTail, sizeof(*pInstr));
|
---|
5258 | pInstr->IfCore.Core.enmOpcode = fPositiveStmt ? kKmkCcEvalInstr_ifdef_plain : kKmkCcEvalInstr_ifndef_plain;
|
---|
5259 | pInstr->IfCore.Core.iLine = pCompiler->iLine;
|
---|
5260 | pInstr->pszName = strcache2_add(&variable_strcache, pWord->pchWord, pWord->cchWord);
|
---|
5261 | kmk_cc_eval_do_if_core(pCompiler, &pInstr->IfCore, fInElse);
|
---|
5262 | }
|
---|
5263 | else
|
---|
5264 | {
|
---|
5265 | PKMKCCEVALIFDEFDYNAMIC pInstr;
|
---|
5266 | size_t cchCopy;
|
---|
5267 | char const *pszCopy;
|
---|
5268 |
|
---|
5269 | pInstr = (PKMKCCEVALIFDEFDYNAMIC)kmk_cc_block_alloc_eval(pCompiler->ppBlockTail, sizeof(*pInstr));
|
---|
5270 |
|
---|
5271 | /** @todo Make the subprogram embed necessary strings. */
|
---|
5272 | if (pWord->enmToken != kKmkCcEvalToken_WordWithDollar)
|
---|
5273 | {
|
---|
5274 | pszCopy = kmk_cc_block_strdup(pCompiler->ppBlockTail, pWord->pchWord, pWord->cchWord);
|
---|
5275 | cchCopy = pWord->cchWord;
|
---|
5276 | }
|
---|
5277 | else
|
---|
5278 | {
|
---|
5279 | KMK_CC_ASSERT(pWord->enmToken == kKmkCcEvalToken_WordWithDollarAndEscEol);
|
---|
5280 | pCompiler->iEscEol = iSavedEscEol;
|
---|
5281 | cchCopy = kmk_cc_eval_prep_normal_line_ex(pCompiler, pWord->pchWord, cchLeft);
|
---|
5282 | pszCopy = kmk_cc_eval_strdup_prepped(pCompiler, cchCopy);
|
---|
5283 | }
|
---|
5284 | kmk_cc_block_realign(pCompiler->ppBlockTail);
|
---|
5285 |
|
---|
5286 | pInstr->IfCore.Core.enmOpcode = fPositiveStmt ? kKmkCcEvalInstr_ifdef_dynamic : kKmkCcEvalInstr_ifndef_dynamic;
|
---|
5287 | pInstr->IfCore.Core.iLine = pCompiler->iLine;
|
---|
5288 | pInstr->uPadding = 0;
|
---|
5289 | kmk_cc_eval_compile_string_exp_subprog(pCompiler, pszCopy, cchCopy, &pInstr->NameSubprog);
|
---|
5290 |
|
---|
5291 | kmk_cc_eval_do_if_core(pCompiler, &pInstr->IfCore, fInElse);
|
---|
5292 | }
|
---|
5293 | }
|
---|
5294 | else
|
---|
5295 | {
|
---|
5296 | KMK_CC_ASSERT(cWords > 1);
|
---|
5297 | kmk_cc_eval_fatal(pCompiler, pCompiler->paWords[1].pchWord,
|
---|
5298 | "Bogus stuff after 'if%sdef' variable name", fPositiveStmt ? "" : "n");
|
---|
5299 | }
|
---|
5300 | }
|
---|
5301 | else
|
---|
5302 | kmk_cc_eval_fatal(pCompiler, pchWord, "Expected expression after 'if' directive");
|
---|
5303 | return 1;
|
---|
5304 | }
|
---|
5305 |
|
---|
5306 |
|
---|
5307 | /**
|
---|
5308 | * Deals with 'ifeq (a,b)', 'ifeq "a" "b"', 'ifneq (a,b)', 'ifneq "a" "b"',
|
---|
5309 | * 'else ifeq (a,b)', 'else ifeq "a" "b"', 'else ifneq (a,b)' and
|
---|
5310 | * 'else ifneq "a" "b"' statements.
|
---|
5311 | *
|
---|
5312 | * @returns 1 to indicate we've handled a keyword (see
|
---|
5313 | * kmk_cc_eval_try_handle_keyword).
|
---|
5314 | * @param pCompiler The compiler state.
|
---|
5315 | * @param pchWord First char after 'if[n]eq'.
|
---|
5316 | * @param cchLeft The number of chars left to parse on this line.
|
---|
5317 | * @param fInElse Set if this is an 'else if' (rather than just 'if').
|
---|
5318 | * @param fPositiveStmt Set if 'ifeq', clear if 'ifneq'.
|
---|
5319 | */
|
---|
5320 | static int kmk_cc_eval_do_ifeq(PKMKCCEVALCOMPILER pCompiler, const char *pchWord, size_t cchLeft, int fInElse, int fPositiveStmt)
|
---|
5321 | {
|
---|
5322 | KMK_CC_EVAL_SKIP_SPACES_AFTER_WORD(pCompiler, pchWord, cchLeft);
|
---|
5323 | if (cchLeft)
|
---|
5324 | {
|
---|
5325 | /*
|
---|
5326 | * There are two forms:
|
---|
5327 | *
|
---|
5328 | * ifeq (string1, string2)
|
---|
5329 | * ifeq "string1" 'string2'
|
---|
5330 | *
|
---|
5331 | */
|
---|
5332 | const char * const pchEnd = &pchWord[cchLeft];
|
---|
5333 | PKMKCCEVALIFEQ pInstr = (PKMKCCEVALIFEQ)kmk_cc_block_alloc_eval(pCompiler->ppBlockTail, sizeof(*pInstr));
|
---|
5334 |
|
---|
5335 | struct
|
---|
5336 | {
|
---|
5337 | char *pszCopy;
|
---|
5338 | size_t cchCopy;
|
---|
5339 | int fPlain;
|
---|
5340 | } Left, Right;
|
---|
5341 |
|
---|
5342 | char ch = *pchWord;
|
---|
5343 | if (ch == '(')
|
---|
5344 | {
|
---|
5345 | int cCounts;
|
---|
5346 | size_t off;
|
---|
5347 |
|
---|
5348 | /*
|
---|
5349 | * The left side ends with a comma. We respect parentheses, but
|
---|
5350 | * not curly brackets.
|
---|
5351 | */
|
---|
5352 |
|
---|
5353 | /* Skip the parenthesis. */
|
---|
5354 | pchWord++;
|
---|
5355 | cchLeft--;
|
---|
5356 |
|
---|
5357 | /* Find the comma, checking for non-plainness. */
|
---|
5358 | cCounts = 0;
|
---|
5359 | Left.fPlain = 1;
|
---|
5360 | for (off = 0; off < cchLeft; off++)
|
---|
5361 | {
|
---|
5362 | ch = pchWord[off];
|
---|
5363 | if (!KMK_CC_EVAL_IS_PAREN_COMMA_OR_DOLLAR(ch))
|
---|
5364 | { /* likely */ }
|
---|
5365 | else if (ch == '$')
|
---|
5366 | Left.fPlain = 0;
|
---|
5367 | else if (ch == '(')
|
---|
5368 | cCounts++;
|
---|
5369 | else if (ch == ')')
|
---|
5370 | cCounts--; /** @todo warn if it goes negative. */
|
---|
5371 | else if (ch == ',' && cCounts == 0)
|
---|
5372 | break;
|
---|
5373 | else
|
---|
5374 | KMK_CC_ASSERT(cCounts > 0);
|
---|
5375 | }
|
---|
5376 | if (ch == ',' && cCounts == 0) { /* likely */ }
|
---|
5377 | else kmk_cc_eval_fatal(pCompiler, &pchWord[off], "Expected ',' before end of line");
|
---|
5378 |
|
---|
5379 | /* Copy out the string. */
|
---|
5380 | Left.cchCopy = kmk_cc_eval_prep_normal_line_ex(pCompiler, pchWord, off);
|
---|
5381 | kmk_cc_eval_strip_right_v(pCompiler->paStrCopySegs, &pCompiler->cStrCopySegs, &Left.cchCopy);
|
---|
5382 | Left.pszCopy = kmk_cc_eval_strdup_prepped(pCompiler, Left.cchCopy);
|
---|
5383 |
|
---|
5384 | /* Skip past the comma and any following spaces. */
|
---|
5385 | pchWord += off + 1;
|
---|
5386 | cchLeft -= off + 1;
|
---|
5387 | if ( cchLeft /** @todo replace with straight 'isspace' that takes escaped EOLs into account. */
|
---|
5388 | && KMK_CC_EVAL_IS_SPACE_AFTER_WORD(pCompiler, pchWord[0], pchWord[1], cchLeft))
|
---|
5389 | KMK_CC_EVAL_SKIP_SPACES_AFTER_WORD(pCompiler, pchWord, cchLeft);
|
---|
5390 |
|
---|
5391 | /*
|
---|
5392 | * Ditto for the right side, only it ends with a closing parenthesis.
|
---|
5393 | */
|
---|
5394 | cCounts = 1;
|
---|
5395 | Right.fPlain = 1;
|
---|
5396 | for (off = 0; off < cchLeft; off++)
|
---|
5397 | {
|
---|
5398 | ch = pchWord[off];
|
---|
5399 | if (!KMK_CC_EVAL_IS_PAREN_COMMA_OR_DOLLAR(ch))
|
---|
5400 | { /* likely */ }
|
---|
5401 | else if (ch == '$')
|
---|
5402 | Right.fPlain = 0;
|
---|
5403 | else if (ch == '(')
|
---|
5404 | cCounts++;
|
---|
5405 | else if (ch == ')')
|
---|
5406 | {
|
---|
5407 | if (--cCounts == 0)
|
---|
5408 | break;
|
---|
5409 | }
|
---|
5410 | else
|
---|
5411 | KMK_CC_ASSERT(cCounts > 0 || ch == ',');
|
---|
5412 | }
|
---|
5413 | if (ch == ')' && cCounts == 0) { /* likely */ }
|
---|
5414 | else kmk_cc_eval_fatal(pCompiler, &pchWord[off], "Expected ')' before end of line");
|
---|
5415 |
|
---|
5416 | /* Copy out the string. */
|
---|
5417 | Right.cchCopy = kmk_cc_eval_prep_normal_line_ex(pCompiler, pchWord, off);
|
---|
5418 | kmk_cc_eval_strip_right_v(pCompiler->paStrCopySegs, &pCompiler->cStrCopySegs, &Right.cchCopy);
|
---|
5419 | Right.pszCopy = kmk_cc_eval_strdup_prepped(pCompiler, Right.cchCopy);
|
---|
5420 |
|
---|
5421 | /* Skip past the parenthesis. */
|
---|
5422 | pchWord += off + 1;
|
---|
5423 | cchLeft -= off + 1;
|
---|
5424 | }
|
---|
5425 | else if (ch == '"' || ch == '\'')
|
---|
5426 | {
|
---|
5427 | const char *pchTmp;
|
---|
5428 |
|
---|
5429 | /*
|
---|
5430 | * Quoted left side.
|
---|
5431 | */
|
---|
5432 | /* Skip leading quote. */
|
---|
5433 | pchWord++;
|
---|
5434 | cchLeft--;
|
---|
5435 |
|
---|
5436 | /* Locate the end quote. */
|
---|
5437 | pchTmp = (const char *)memchr(pchWord, ch, cchLeft);
|
---|
5438 | if (pchTmp) { /* likely */ }
|
---|
5439 | else kmk_cc_eval_fatal(pCompiler, pchWord - 1, "Unbalanced quote in first if%seq string", fPositiveStmt ? "" : "n");
|
---|
5440 |
|
---|
5441 | Left.cchCopy = kmk_cc_eval_prep_normal_line_ex(pCompiler, pchWord, pchTmp - pchWord);
|
---|
5442 | Left.pszCopy = kmk_cc_eval_strdup_prepped(pCompiler, Left.cchCopy);
|
---|
5443 | Left.fPlain = memchr(Left.pszCopy, '$', Left.cchCopy) == NULL;
|
---|
5444 |
|
---|
5445 | /* skip end quote */
|
---|
5446 | pchWord = pchTmp + 1;
|
---|
5447 | cchLeft = pchEnd - pchWord;
|
---|
5448 |
|
---|
5449 | /* Skip anything inbetween the left and right hand side (not mandatory). */
|
---|
5450 | if ( cchLeft /** @todo replace with straight 'isspace' that takes escaped EOLs into account. */
|
---|
5451 | && KMK_CC_EVAL_IS_SPACE_AFTER_WORD(pCompiler, pchWord[0], pchWord[1], cchLeft))
|
---|
5452 | KMK_CC_EVAL_SKIP_SPACES_AFTER_WORD(pCompiler, pchWord, cchLeft);
|
---|
5453 |
|
---|
5454 | /*
|
---|
5455 | * Quoted right side.
|
---|
5456 | */
|
---|
5457 | if ( cchLeft > 0
|
---|
5458 | && ( (ch = *pchWord) != '"' || ch == '\'') )
|
---|
5459 | {
|
---|
5460 | /* Skip leading quote. */
|
---|
5461 | pchWord++;
|
---|
5462 | cchLeft--;
|
---|
5463 |
|
---|
5464 | /* Locate the end quote. */
|
---|
5465 | pchTmp = (const char *)memchr(pchWord, ch, cchLeft);
|
---|
5466 | if (pchTmp) { /* likely */ }
|
---|
5467 | else kmk_cc_eval_fatal(pCompiler, pchWord - 1, "Unbalanced quote in second if%seq string", fPositiveStmt ? "" : "n");
|
---|
5468 |
|
---|
5469 | Right.cchCopy = kmk_cc_eval_prep_normal_line_ex(pCompiler, pchWord, pchTmp - pchWord);
|
---|
5470 | Right.pszCopy = kmk_cc_eval_strdup_prepped(pCompiler, Right.cchCopy);
|
---|
5471 | Right.fPlain = memchr(Right.pszCopy, '$', Right.cchCopy) == NULL;
|
---|
5472 |
|
---|
5473 | /* skip end quote */
|
---|
5474 | pchWord = pchTmp + 1;
|
---|
5475 | cchLeft = pchEnd - pchWord;
|
---|
5476 | }
|
---|
5477 | else
|
---|
5478 | kmk_cc_eval_fatal(pCompiler, pchWord, "Expected a second quoted string for 'if%seq'",
|
---|
5479 | fPositiveStmt ? "" : "n");
|
---|
5480 | }
|
---|
5481 | else
|
---|
5482 | kmk_cc_eval_fatal(pCompiler, pchWord, "Expected parentheses or quoted string after 'if%seq'",
|
---|
5483 | fPositiveStmt ? "" : "n");
|
---|
5484 | kmk_cc_block_realign(pCompiler->ppBlockTail);
|
---|
5485 |
|
---|
5486 | /*
|
---|
5487 | * Initialize the instruction.
|
---|
5488 | */
|
---|
5489 | pInstr->IfCore.Core.enmOpcode = fPositiveStmt ? kKmkCcEvalInstr_ifeq : kKmkCcEvalInstr_ifneq;
|
---|
5490 | pInstr->IfCore.Core.iLine = pCompiler->iLine;
|
---|
5491 | kmk_cc_eval_init_subprogram_or_plain(pCompiler, &pInstr->Left, Left.pszCopy, Left.cchCopy, Left.fPlain);
|
---|
5492 | kmk_cc_eval_init_subprogram_or_plain(pCompiler, &pInstr->Right, Right.pszCopy, Right.cchCopy, Right.fPlain);
|
---|
5493 | kmk_cc_eval_do_if_core(pCompiler, &pInstr->IfCore, fInElse);
|
---|
5494 |
|
---|
5495 | /*
|
---|
5496 | * Make sure there is nothing following the variable name.
|
---|
5497 | */
|
---|
5498 | KMK_CC_EVAL_SKIP_SPACES_AFTER_WORD(pCompiler, pchWord, cchLeft);
|
---|
5499 | if (cchLeft)
|
---|
5500 | kmk_cc_eval_fatal(pCompiler, pchWord, "Bogus stuff after 'if%sdef' variable name", fPositiveStmt ? "" : "n");
|
---|
5501 | }
|
---|
5502 | else
|
---|
5503 | kmk_cc_eval_fatal(pCompiler, pchWord, "Expected expression after 'if' directive");
|
---|
5504 | return 1;
|
---|
5505 | }
|
---|
5506 |
|
---|
5507 |
|
---|
5508 | /**
|
---|
5509 | * Deals with 'if1of (set-a,set-b)', 'ifn1of (set-a,set-b)',
|
---|
5510 | * 'else if1of (set-a,set-b)' and 'else ifn1of (set-a,set-b)' statements.
|
---|
5511 | *
|
---|
5512 | * @returns 1 to indicate we've handled a keyword (see
|
---|
5513 | * kmk_cc_eval_try_handle_keyword).
|
---|
5514 | * @param pCompiler The compiler state.
|
---|
5515 | * @param pchWord First char after 'if[n]1of'.
|
---|
5516 | * @param cchLeft The number of chars left to parse on this line.
|
---|
5517 | * @param fInElse Set if this is an 'else if' (rather than just 'if').
|
---|
5518 | * @param fPositiveStmt Set if 'if1of', clear if 'ifn1of'.
|
---|
5519 | */
|
---|
5520 | static int kmk_cc_eval_do_if1of(PKMKCCEVALCOMPILER pCompiler, const char *pchWord, size_t cchLeft, int fInElse, int fPositiveStmt)
|
---|
5521 | {
|
---|
5522 | KMK_CC_EVAL_SKIP_SPACES_AFTER_WORD(pCompiler, pchWord, cchLeft);
|
---|
5523 | if (cchLeft)
|
---|
5524 | {
|
---|
5525 | /*
|
---|
5526 | * This code is (currently) very similar to kmk_cc_eval_do_ifeq.
|
---|
5527 | * However, we may want to add hashing optimizations of plain text,
|
---|
5528 | * and we don't want to support the quoted form as it is not necessary
|
---|
5529 | * and may interfere with support for quoted words later on.
|
---|
5530 | */
|
---|
5531 | PKMKCCEVALIF1OF pInstr = (PKMKCCEVALIF1OF)kmk_cc_block_alloc_eval(pCompiler->ppBlockTail, sizeof(*pInstr));
|
---|
5532 |
|
---|
5533 | struct
|
---|
5534 | {
|
---|
5535 | char *pszCopy;
|
---|
5536 | size_t cchCopy;
|
---|
5537 | int fPlain;
|
---|
5538 | } Left, Right;
|
---|
5539 |
|
---|
5540 | char ch = *pchWord;
|
---|
5541 | if (ch == '(')
|
---|
5542 | {
|
---|
5543 | int cCounts;
|
---|
5544 | size_t off;
|
---|
5545 |
|
---|
5546 | /*
|
---|
5547 | * The left side ends with a comma. We respect parentheses, but
|
---|
5548 | * not curly brackets.
|
---|
5549 | */
|
---|
5550 |
|
---|
5551 | /* Skip the parenthesis. */
|
---|
5552 | pchWord++;
|
---|
5553 | cchLeft--;
|
---|
5554 |
|
---|
5555 | /* Find the comma, checking for non-plainness. */
|
---|
5556 | cCounts = 0;
|
---|
5557 | Left.fPlain = 1;
|
---|
5558 | for (off = 0; off < cchLeft; off++)
|
---|
5559 | {
|
---|
5560 | ch = pchWord[off];
|
---|
5561 | if (!KMK_CC_EVAL_IS_PAREN_COMMA_OR_DOLLAR(ch))
|
---|
5562 | { /* likely */ }
|
---|
5563 | else if (ch == '$')
|
---|
5564 | Left.fPlain = 0;
|
---|
5565 | else if (ch == '(')
|
---|
5566 | cCounts++;
|
---|
5567 | else if (ch == ')')
|
---|
5568 | cCounts--; /** @todo warn if it goes negative. */
|
---|
5569 | else if (ch == ',' && cCounts == 0)
|
---|
5570 | break;
|
---|
5571 | else
|
---|
5572 | KMK_CC_ASSERT(cCounts > 0);
|
---|
5573 | }
|
---|
5574 | if (ch == ',' && cCounts == 0) { /* likely */ }
|
---|
5575 | else kmk_cc_eval_fatal(pCompiler, &pchWord[off], "Expected ',' before end of line");
|
---|
5576 |
|
---|
5577 | /* Copy out the string. */
|
---|
5578 | Left.cchCopy = kmk_cc_eval_prep_normal_line_ex(pCompiler, pchWord, off);
|
---|
5579 | kmk_cc_eval_strip_right_v(pCompiler->paStrCopySegs, &pCompiler->cStrCopySegs, &Left.cchCopy);
|
---|
5580 | Left.pszCopy = kmk_cc_eval_strdup_prepped(pCompiler, Left.cchCopy);
|
---|
5581 |
|
---|
5582 | /* Skip past the comma and any following spaces. */
|
---|
5583 | pchWord += off + 1;
|
---|
5584 | cchLeft -= off + 1;
|
---|
5585 | if ( cchLeft /** @todo replace with straight 'isspace' that takes escaped EOLs into account. */
|
---|
5586 | && KMK_CC_EVAL_IS_SPACE_AFTER_WORD(pCompiler, pchWord[0], pchWord[1], cchLeft))
|
---|
5587 | KMK_CC_EVAL_SKIP_SPACES_AFTER_WORD(pCompiler, pchWord, cchLeft);
|
---|
5588 |
|
---|
5589 | /*
|
---|
5590 | * Ditto for the right side, only it ends with a closing parenthesis.
|
---|
5591 | */
|
---|
5592 | cCounts = 1;
|
---|
5593 | Right.fPlain = 1;
|
---|
5594 | for (off = 0; off < cchLeft; off++)
|
---|
5595 | {
|
---|
5596 | ch = pchWord[off];
|
---|
5597 | if (!KMK_CC_EVAL_IS_PAREN_COMMA_OR_DOLLAR(ch))
|
---|
5598 | { /* likely */ }
|
---|
5599 | else if (ch == '$')
|
---|
5600 | Right.fPlain = 0;
|
---|
5601 | else if (ch == '(')
|
---|
5602 | cCounts++;
|
---|
5603 | else if (ch == ')')
|
---|
5604 | {
|
---|
5605 | if (--cCounts == 0)
|
---|
5606 | break;
|
---|
5607 | }
|
---|
5608 | else
|
---|
5609 | KMK_CC_ASSERT(cCounts > 0 || ch == ',');
|
---|
5610 | }
|
---|
5611 | if (ch == ')' && cCounts == 0) { /* likely */ }
|
---|
5612 | else kmk_cc_eval_fatal(pCompiler, &pchWord[off], "Expected ')' before end of line");
|
---|
5613 |
|
---|
5614 | /* Copy out the string. */
|
---|
5615 | Right.cchCopy = kmk_cc_eval_prep_normal_line_ex(pCompiler, pchWord, off);
|
---|
5616 | kmk_cc_eval_strip_right_v(pCompiler->paStrCopySegs, &pCompiler->cStrCopySegs, &Right.cchCopy);
|
---|
5617 | Right.pszCopy = kmk_cc_eval_strdup_prepped(pCompiler, Right.cchCopy);
|
---|
5618 |
|
---|
5619 | /* Skip past the parenthesis. */
|
---|
5620 | pchWord += off + 1;
|
---|
5621 | cchLeft -= off + 1;
|
---|
5622 | }
|
---|
5623 | else
|
---|
5624 | kmk_cc_eval_fatal(pCompiler, pchWord, "Expected parentheses after 'if%s1of'", fPositiveStmt ? "" : "n");
|
---|
5625 | kmk_cc_block_realign(pCompiler->ppBlockTail);
|
---|
5626 |
|
---|
5627 | /*
|
---|
5628 | * Initialize the instruction.
|
---|
5629 | */
|
---|
5630 | pInstr->IfCore.Core.enmOpcode = fPositiveStmt ? kKmkCcEvalInstr_if1of : kKmkCcEvalInstr_ifn1of;
|
---|
5631 | pInstr->IfCore.Core.iLine = pCompiler->iLine;
|
---|
5632 | kmk_cc_eval_init_subprogram_or_plain(pCompiler, &pInstr->Left, Left.pszCopy, Left.cchCopy, Left.fPlain);
|
---|
5633 | kmk_cc_eval_init_subprogram_or_plain(pCompiler, &pInstr->Right, Right.pszCopy, Right.cchCopy, Right.fPlain);
|
---|
5634 | kmk_cc_eval_do_if_core(pCompiler, &pInstr->IfCore, fInElse);
|
---|
5635 |
|
---|
5636 | /*
|
---|
5637 | * Make sure there is nothing following the variable name.
|
---|
5638 | */
|
---|
5639 | KMK_CC_EVAL_SKIP_SPACES_AFTER_WORD(pCompiler, pchWord, cchLeft);
|
---|
5640 | if (cchLeft)
|
---|
5641 | kmk_cc_eval_fatal(pCompiler, pchWord, "Bogus stuff after 'if%s1of' variable name", fPositiveStmt ? "" : "n");
|
---|
5642 | }
|
---|
5643 | else
|
---|
5644 | kmk_cc_eval_fatal(pCompiler, pchWord, "Expected expression after 'if' directive");
|
---|
5645 | return 1;
|
---|
5646 | }
|
---|
5647 |
|
---|
5648 |
|
---|
5649 | /**
|
---|
5650 | * Deals with 'else' and 'else ifxxx' statements.
|
---|
5651 | *
|
---|
5652 | * @returns 1 to indicate we've handled a keyword (see
|
---|
5653 | * kmk_cc_eval_try_handle_keyword).
|
---|
5654 | * @param pCompiler The compiler state.
|
---|
5655 | * @param pchWord First char after 'define'.
|
---|
5656 | * @param cchLeft The number of chars left to parse on this line.
|
---|
5657 | */
|
---|
5658 | static int kmk_cc_eval_do_else(PKMKCCEVALCOMPILER pCompiler, const char *pchWord, size_t cchLeft)
|
---|
5659 | {
|
---|
5660 | /*
|
---|
5661 | * There must be an 'if' on the stack.
|
---|
5662 | */
|
---|
5663 | unsigned iIf = pCompiler->cIfs;
|
---|
5664 | if (iIf > 0)
|
---|
5665 | {
|
---|
5666 | PKMKCCEVALIFCORE pIfCore = pCompiler->apIfs[--iIf];
|
---|
5667 | if (!pIfCore->pTrueEndJump)
|
---|
5668 | {
|
---|
5669 | /* Emit a jump instruction that will take us from the 'True' block to the 'endif'. */
|
---|
5670 | PKMKCCEVALJUMP pInstr = (PKMKCCEVALJUMP)kmk_cc_block_alloc_eval(pCompiler->ppBlockTail, sizeof(*pInstr));
|
---|
5671 | pInstr->Core.enmOpcode = kKmkCcEvalInstr_jump;
|
---|
5672 | pInstr->Core.iLine = pCompiler->iLine;
|
---|
5673 | pInstr->pNext = NULL;
|
---|
5674 | pIfCore->pTrueEndJump = pInstr;
|
---|
5675 |
|
---|
5676 | /* The next instruction is the first in the 'False' block of the current 'if'.
|
---|
5677 | Should this be an 'else if', this will be the 'if' instruction emitted below. */
|
---|
5678 | pIfCore->pNextFalse = (PKMKCCEVALCORE)kmk_cc_block_get_next_ptr(*pCompiler->ppBlockTail);
|
---|
5679 | }
|
---|
5680 | else if (iIf == 0)
|
---|
5681 | kmk_cc_eval_fatal(pCompiler, pchWord, "2nd 'else' for 'if' at line %u", pIfCore->Core.iLine);
|
---|
5682 | else
|
---|
5683 | kmk_cc_eval_fatal(pCompiler, pchWord, "2nd 'else' in a row - missing 'endif' for 'if' at line %u?",
|
---|
5684 | pIfCore->Core.iLine);
|
---|
5685 | }
|
---|
5686 | else
|
---|
5687 | kmk_cc_eval_fatal(pCompiler, pchWord, "'else' without 'if'");
|
---|
5688 |
|
---|
5689 | /*
|
---|
5690 | * Check for 'else ifxxx'. There can be nothing else following an else.
|
---|
5691 | */
|
---|
5692 | KMK_CC_EVAL_SKIP_SPACES_AFTER_WORD(pCompiler, pchWord, cchLeft);
|
---|
5693 | if (cchLeft)
|
---|
5694 | {
|
---|
5695 | if ( cchLeft > 2
|
---|
5696 | && KMK_CC_WORD_COMP_CONST_2(pchWord, "if"))
|
---|
5697 | {
|
---|
5698 | pchWord += 2;
|
---|
5699 | cchLeft -= 2;
|
---|
5700 |
|
---|
5701 | if (KMK_CC_EVAL_WORD_COMP_IS_EOL(pCompiler, pchWord, cchLeft))
|
---|
5702 | return kmk_cc_eval_do_if(pCompiler, pchWord, cchLeft, 1 /* in else */);
|
---|
5703 |
|
---|
5704 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "eq", 2))
|
---|
5705 | return kmk_cc_eval_do_ifeq( pCompiler, pchWord + 2, cchLeft - 2, 1 /* in else */, 1 /* positive */);
|
---|
5706 |
|
---|
5707 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "def", 3))
|
---|
5708 | return kmk_cc_eval_do_ifdef(pCompiler, pchWord + 3, cchLeft - 3, 1 /* in else */, 1 /* positive */);
|
---|
5709 |
|
---|
5710 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "neq", 3))
|
---|
5711 | return kmk_cc_eval_do_ifeq( pCompiler, pchWord + 3, cchLeft - 3, 1 /* in else */, 0 /* positive */);
|
---|
5712 |
|
---|
5713 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "1of", 3))
|
---|
5714 | return kmk_cc_eval_do_if1of(pCompiler, pchWord + 3, cchLeft - 3, 1 /* in else */, 1 /* positive */);
|
---|
5715 |
|
---|
5716 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "ndef", 4))
|
---|
5717 | return kmk_cc_eval_do_ifdef(pCompiler, pchWord + 4, cchLeft - 4, 1 /* in else */, 0 /* positive */);
|
---|
5718 |
|
---|
5719 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "n1of", 4))
|
---|
5720 | return kmk_cc_eval_do_if1of(pCompiler, pchWord + 4, cchLeft - 4, 1 /* in else */, 0 /* positive */);
|
---|
5721 |
|
---|
5722 | pchWord -= 2;
|
---|
5723 | cchLeft += 2;
|
---|
5724 | }
|
---|
5725 | kmk_cc_eval_fatal(pCompiler, pchWord, "Bogus stuff after 'else'");
|
---|
5726 | }
|
---|
5727 |
|
---|
5728 | return 1;
|
---|
5729 | }
|
---|
5730 |
|
---|
5731 |
|
---|
5732 | /**
|
---|
5733 | * Deals with the 'endif' statement.
|
---|
5734 | *
|
---|
5735 | * @returns 1 to indicate we've handled a keyword (see
|
---|
5736 | * kmk_cc_eval_try_handle_keyword).
|
---|
5737 | * @param pCompiler The compiler state.
|
---|
5738 | * @param pchWord First char after 'define'.
|
---|
5739 | * @param cchLeft The number of chars left to parse on this line.
|
---|
5740 | */
|
---|
5741 | static int kmk_cc_eval_do_endif(PKMKCCEVALCOMPILER pCompiler, const char *pchWord, size_t cchLeft)
|
---|
5742 | {
|
---|
5743 | /*
|
---|
5744 | * There must be an 'if' on the stack. We'll POP it.
|
---|
5745 | */
|
---|
5746 | unsigned iIf = pCompiler->cIfs;
|
---|
5747 | if (iIf > 0)
|
---|
5748 | {
|
---|
5749 | PKMKCCEVALCORE pNextInstr;
|
---|
5750 | PKMKCCEVALIFCORE pIfCore = pCompiler->apIfs[--iIf];
|
---|
5751 | pCompiler->cIfs = iIf; /* POP! */
|
---|
5752 |
|
---|
5753 | /* Update the jump targets for all IFs at this level. */
|
---|
5754 | pNextInstr = (PKMKCCEVALCORE)kmk_cc_block_get_next_ptr(*pCompiler->ppBlockTail);
|
---|
5755 | do
|
---|
5756 | {
|
---|
5757 | if (pIfCore->pTrueEndJump)
|
---|
5758 | {
|
---|
5759 | /* Make the true block jump here, to the 'endif'. The false block is already here. */
|
---|
5760 | pIfCore->pTrueEndJump->pNext = pNextInstr;
|
---|
5761 | KMK_CC_ASSERT(pIfCore->pNextFalse);
|
---|
5762 | }
|
---|
5763 | else
|
---|
5764 | {
|
---|
5765 | /* No 'else'. The false-case jump here, to the 'endif'. */
|
---|
5766 | KMK_CC_ASSERT(!pIfCore->pNextFalse);
|
---|
5767 | pIfCore->pNextFalse = pNextInstr;
|
---|
5768 | }
|
---|
5769 |
|
---|
5770 | pIfCore = pIfCore->pPrevCond;
|
---|
5771 | } while (pIfCore);
|
---|
5772 | }
|
---|
5773 | else
|
---|
5774 | kmk_cc_eval_fatal(pCompiler, pchWord, "'endif' without 'if'");
|
---|
5775 |
|
---|
5776 | /*
|
---|
5777 | * There shouldn't be anything trailing an 'endif'.
|
---|
5778 | */
|
---|
5779 | KMK_CC_EVAL_SKIP_SPACES_AFTER_WORD(pCompiler, pchWord, cchLeft);
|
---|
5780 | if (!cchLeft) { /* likely */ }
|
---|
5781 | else kmk_cc_eval_fatal(pCompiler, pchWord, "Bogus stuff after 'else'");
|
---|
5782 |
|
---|
5783 | return 1;
|
---|
5784 | }
|
---|
5785 |
|
---|
5786 |
|
---|
5787 | /**
|
---|
5788 | * Parses a 'include file...', 'sinclude file...', '-include file...',
|
---|
5789 | * 'includedep file...', 'includedep-queue file...' and
|
---|
5790 | * 'includedep-flush file...'
|
---|
5791 | *
|
---|
5792 | * @returns 1 to indicate we've handled a keyword (see
|
---|
5793 | * kmk_cc_eval_try_handle_keyword).
|
---|
5794 | * @param pCompiler The compiler state.
|
---|
5795 | * @param pchWord First char after the include directive.
|
---|
5796 | * @param cchLeft The number of chars left to parse on this line.
|
---|
5797 | * @param enmOpcode The opcode for the include directive we're parsing.
|
---|
5798 | */
|
---|
5799 | static int kmk_cc_eval_do_include(PKMKCCEVALCOMPILER pCompiler, const char *pchWord, size_t cchLeft, KMKCCEVALINSTR enmOpcode)
|
---|
5800 | {
|
---|
5801 | KMK_CC_EVAL_SKIP_SPACES_AFTER_WORD(pCompiler, pchWord, cchLeft);
|
---|
5802 | if (cchLeft)
|
---|
5803 | {
|
---|
5804 | /*
|
---|
5805 | * Split what's left up into words.
|
---|
5806 | */
|
---|
5807 | /** @todo GNU make supports escape sequences for spaces here (they confusingly refers to this as quoting). So, it's possible
|
---|
5808 | * to include C:/Program\ Files/kBuild/footer.kmk if we wanted to. It my intention to add support for double and/or single
|
---|
5809 | * quoted files names to offer an alternative way of addressing this. */
|
---|
5810 | unsigned cWords = kmk_cc_eval_parse_words(pCompiler, pchWord, cchLeft);
|
---|
5811 | KMK_CC_EVAL_DPRINTF(("%s: cWords=%d\n", g_apszEvalInstrNms[enmOpcode], cWords));
|
---|
5812 | if (cWords)
|
---|
5813 | {
|
---|
5814 | PKMKCCEVALINCLUDE pInstr = (PKMKCCEVALINCLUDE)kmk_cc_block_alloc_eval(pCompiler->ppBlockTail,
|
---|
5815 | KMKCCEVALINCLUDE_SIZE(cWords));
|
---|
5816 | pInstr->Core.enmOpcode = enmOpcode;
|
---|
5817 | pInstr->Core.iLine = pCompiler->iLine;
|
---|
5818 | pInstr->cFiles = cWords;
|
---|
5819 | kmk_cc_eval_init_spp_array_from_duplicated_words(pCompiler, cWords, pCompiler->paWords, pInstr->aFiles);
|
---|
5820 | kmk_cc_block_realign(pCompiler->ppBlockTail);
|
---|
5821 | }
|
---|
5822 | else
|
---|
5823 | KMK_CC_ASSERT(0);
|
---|
5824 | }
|
---|
5825 | else
|
---|
5826 | KMK_CC_EVAL_DPRINTF(("%s: include without args\n", g_apszEvalInstrNms[enmOpcode]));
|
---|
5827 | return 1;
|
---|
5828 | }
|
---|
5829 |
|
---|
5830 |
|
---|
5831 | static int kmk_cc_eval_do_vpath(PKMKCCEVALCOMPILER pCompiler, const char *pchWord, size_t cchLeft)
|
---|
5832 | {
|
---|
5833 | kmk_cc_eval_fatal(pCompiler, NULL, "vpath directive is not implemented\n");
|
---|
5834 | return 1;
|
---|
5835 | }
|
---|
5836 |
|
---|
5837 |
|
---|
5838 | /**
|
---|
5839 | * Called when any previous recipe must have ended and can be finalized.
|
---|
5840 | *
|
---|
5841 | * This occurs when encountering an assignement, a new recipe or the end of the
|
---|
5842 | * complication unit.
|
---|
5843 | *
|
---|
5844 | * @param pCompiler The compiler state.
|
---|
5845 | */
|
---|
5846 | static void kmk_cc_eval_end_of_recipe(PKMKCCEVALCOMPILER pCompiler, const char *pchWord)
|
---|
5847 | {
|
---|
5848 | if (pCompiler->pRecipe)
|
---|
5849 | {
|
---|
5850 | /** @todo do stuff here. */
|
---|
5851 | kmk_cc_eval_fatal(pCompiler, pchWord, "end-of-recipe handling not implemented yet");
|
---|
5852 | }
|
---|
5853 | }
|
---|
5854 |
|
---|
5855 |
|
---|
5856 | static void kmk_cc_eval_handle_command(PKMKCCEVALCOMPILER pCompiler, const char *pchWord, size_t cchLeft)
|
---|
5857 | {
|
---|
5858 | kmk_cc_eval_fatal(pCompiler, pchWord, "command handling not implemented yet");
|
---|
5859 | }
|
---|
5860 |
|
---|
5861 |
|
---|
5862 | /**
|
---|
5863 | * Pick up the recipe parsing at the colon.
|
---|
5864 | *
|
---|
5865 | * @returns 1 to indicate we've handled a keyword (see
|
---|
5866 | * kmk_cc_eval_try_handle_keyword).
|
---|
5867 | * @param pCompiler The compiler state.
|
---|
5868 | * @param pchWord0 The first word.
|
---|
5869 | * @param cchWord0 The length of the first word.
|
---|
5870 | * @param enmToken0 The classification of the first word.
|
---|
5871 | * @param pchColon The colon.
|
---|
5872 | * @param cchLeft How much is left, starting at the colon.
|
---|
5873 | */
|
---|
5874 | static int kmk_cc_eval_handle_recipe_cont_colon(PKMKCCEVALCOMPILER pCompiler, const char *pchWord0, size_t cchWord0,
|
---|
5875 | KMKCCEVALTOKEN enmToken0, const char *pchColon, size_t cchLeft)
|
---|
5876 | {
|
---|
5877 | kmk_cc_eval_fatal(pCompiler, pchWord0, "recipe handling not implemented yet (#1)");
|
---|
5878 | return 1;
|
---|
5879 | }
|
---|
5880 |
|
---|
5881 |
|
---|
5882 | /**
|
---|
5883 | * Pick up the recipe parsing at the 2nd word (after it was determined not to be
|
---|
5884 | * an assignment operator after all).
|
---|
5885 | *
|
---|
5886 | * @returns 1 to indicate we've handled a keyword (see
|
---|
5887 | * kmk_cc_eval_try_handle_keyword).
|
---|
5888 | * @param pCompiler The compiler state.
|
---|
5889 | * @param pchWord0 The first word.
|
---|
5890 | * @param cchWord0 The length of the first word.
|
---|
5891 | * @param pchWord Where to continue parsing.
|
---|
5892 | * @param cchLeft How much is left to parse.
|
---|
5893 | */
|
---|
5894 | static int kmk_cc_eval_handle_recipe_cont_2nd_word(PKMKCCEVALCOMPILER pCompiler, const char *pchWord0, size_t cchWord0,
|
---|
5895 | const char *pchWord, size_t cchLeft)
|
---|
5896 | {
|
---|
5897 | // const char *pchColon = memchr()
|
---|
5898 |
|
---|
5899 | kmk_cc_eval_fatal(pCompiler, pchWord, "recipe handling not implemented yet (#2)");
|
---|
5900 | return 1;
|
---|
5901 | }
|
---|
5902 |
|
---|
5903 |
|
---|
5904 | static void kmk_cc_eval_handle_recipe(PKMKCCEVALCOMPILER pCompiler, const char *pchWord, size_t cchLeft)
|
---|
5905 | {
|
---|
5906 | const char *pszColon = NULL;//memchr(pchWord, cchLeft);
|
---|
5907 | if (pszColon)
|
---|
5908 | {
|
---|
5909 |
|
---|
5910 |
|
---|
5911 | kmk_cc_eval_fatal(pCompiler, pchWord, "recipe handling not implemented yet (#3)");
|
---|
5912 | }
|
---|
5913 | else if (pchWord[0] == '$')
|
---|
5914 | {
|
---|
5915 |
|
---|
5916 | }
|
---|
5917 | else
|
---|
5918 | kmk_cc_eval_fatal(pCompiler, pchWord,
|
---|
5919 | "Not variable assignment. Could be a complicated indirect recipe definition, however that's currently not supported.");
|
---|
5920 |
|
---|
5921 | }
|
---|
5922 |
|
---|
5923 |
|
---|
5924 |
|
---|
5925 | /**
|
---|
5926 | * Common worker for handling export (non-assign), undefine and unexport.
|
---|
5927 | *
|
---|
5928 | * For instructions using the KMKCCEVALVARIABLES structure.
|
---|
5929 | *
|
---|
5930 | * @returns 1 to indicate we've handled a keyword (see
|
---|
5931 | * kmk_cc_eval_try_handle_keyword).
|
---|
5932 | * @param pCompiler The compiler state.
|
---|
5933 | * @param pchWord First non-space chare after the keyword.
|
---|
5934 | * @param cchLeft The number of chars left to parse on this line.
|
---|
5935 | * @param fQualifiers The qualifiers.
|
---|
5936 | */
|
---|
5937 | static int kmk_cc_eval_do_with_variable_list(PKMKCCEVALCOMPILER pCompiler, const char *pchWord, size_t cchLeft,
|
---|
5938 | KMKCCEVALINSTR enmOpcode, unsigned fQualifiers)
|
---|
5939 | {
|
---|
5940 | if (cchLeft)
|
---|
5941 | {
|
---|
5942 | /*
|
---|
5943 | * Parse the variable name list. GNU make is using normal word
|
---|
5944 | * handling here, so we can share code with the include directives.
|
---|
5945 | */
|
---|
5946 | unsigned cWords = kmk_cc_eval_parse_words(pCompiler, pchWord, cchLeft);
|
---|
5947 | #ifdef KMK_CC_EVAL_LOGGING_ENABLED
|
---|
5948 | unsigned iWord;
|
---|
5949 | KMK_CC_EVAL_DPRINTF(("%s: cWords=%d\n", g_apszEvalInstrNms[enmOpcode], cWords));
|
---|
5950 | for (iWord = 0; iWord < cWords; iWord++)
|
---|
5951 | KMK_CC_EVAL_DPRINTF((" word[%u]: len=%#05x t=%d '%*.*s'\n", iWord, (int)pCompiler->paWords[iWord].cchWord,
|
---|
5952 | (int)pCompiler->paWords[iWord].enmToken, (int)pCompiler->paWords[iWord].cchWord,
|
---|
5953 | (int)pCompiler->paWords[iWord].cchWord, pCompiler->paWords[iWord].pchWord));
|
---|
5954 | #endif
|
---|
5955 | if (cWords)
|
---|
5956 | {
|
---|
5957 | PKMKCCEVALVARIABLES pInstr = (PKMKCCEVALVARIABLES)kmk_cc_block_alloc_eval(pCompiler->ppBlockTail,
|
---|
5958 | KMKCCEVALVARIABLES_SIZE(cWords));
|
---|
5959 | pInstr->Core.enmOpcode = enmOpcode;
|
---|
5960 | pInstr->Core.iLine = pCompiler->iLine;
|
---|
5961 | pInstr->cVars = cWords;
|
---|
5962 | kmk_cc_eval_init_spp_array_from_duplicated_words(pCompiler, cWords, pCompiler->paWords, pInstr->aVars);
|
---|
5963 | kmk_cc_block_realign(pCompiler->ppBlockTail);
|
---|
5964 | }
|
---|
5965 | else
|
---|
5966 | KMK_CC_ASSERT(0);
|
---|
5967 | }
|
---|
5968 | /* else: NOP */
|
---|
5969 | return 1;
|
---|
5970 | }
|
---|
5971 |
|
---|
5972 |
|
---|
5973 | /**
|
---|
5974 | * Parses a '[qualifiers] undefine variable [..]' expression.
|
---|
5975 | *
|
---|
5976 | * A 'undefine' directive is final, any qualifiers must preceed it. So, we just
|
---|
5977 | * have to extract the variable names now.
|
---|
5978 | *
|
---|
5979 | * @returns 1 to indicate we've handled a keyword (see
|
---|
5980 | * kmk_cc_eval_try_handle_keyword).
|
---|
5981 | * @param pCompiler The compiler state.
|
---|
5982 | * @param pchWord First char after 'define'.
|
---|
5983 | * @param cchLeft The number of chars left to parse on this line.
|
---|
5984 | * @param fQualifiers The qualifiers.
|
---|
5985 | */
|
---|
5986 | static int kmk_cc_eval_do_var_undefine(PKMKCCEVALCOMPILER pCompiler, const char *pchWord, size_t cchLeft, unsigned fQualifiers)
|
---|
5987 | {
|
---|
5988 | KMK_CC_EVAL_SKIP_SPACES_AFTER_WORD(pCompiler, pchWord, cchLeft);
|
---|
5989 | if (!cchLeft)
|
---|
5990 | kmk_cc_eval_fatal(pCompiler, pchWord, "undefine requires a variable name");
|
---|
5991 |
|
---|
5992 | /** @todo GNU make doesn't actually do the list thing for undefine, it seems
|
---|
5993 | * to assume everything after it is a single variable... Going with
|
---|
5994 | * simple common code for now. */
|
---|
5995 | return kmk_cc_eval_do_with_variable_list(pCompiler, pchWord, cchLeft, kKmkCcEvalInstr_undefine, fQualifiers);
|
---|
5996 | }
|
---|
5997 |
|
---|
5998 |
|
---|
5999 | /**
|
---|
6000 | * Parses a '[qualifiers] unexport variable [..]' expression.
|
---|
6001 | *
|
---|
6002 | * A 'unexport' directive is final, any qualifiers must preceed it. So, we just
|
---|
6003 | * have to extract the variable names now.
|
---|
6004 | *
|
---|
6005 | * @returns 1 to indicate we've handled a keyword (see
|
---|
6006 | * kmk_cc_eval_try_handle_keyword).
|
---|
6007 | * @param pCompiler The compiler state.
|
---|
6008 | * @param pchWord First char after 'define'.
|
---|
6009 | * @param cchLeft The number of chars left to parse on this line.
|
---|
6010 | * @param fQualifiers The qualifiers.
|
---|
6011 | */
|
---|
6012 | static int kmk_cc_eval_do_var_unexport(PKMKCCEVALCOMPILER pCompiler, const char *pchWord, size_t cchLeft, unsigned fQualifiers)
|
---|
6013 | {
|
---|
6014 | PKMKCCEVALCORE pInstr;
|
---|
6015 |
|
---|
6016 | /*
|
---|
6017 | * Join paths with undefine and export, unless it's an unexport all directive.
|
---|
6018 | */
|
---|
6019 | KMK_CC_EVAL_SKIP_SPACES_AFTER_WORD(pCompiler, pchWord, cchLeft);
|
---|
6020 | if (cchLeft)
|
---|
6021 | return kmk_cc_eval_do_with_variable_list(pCompiler, pchWord, cchLeft, kKmkCcEvalInstr_unexport, fQualifiers);
|
---|
6022 |
|
---|
6023 | /*
|
---|
6024 | * We're unexporting all variables.
|
---|
6025 | */
|
---|
6026 | pInstr = kmk_cc_block_alloc_eval(pCompiler->ppBlockTail, sizeof(*pInstr));
|
---|
6027 | pInstr->enmOpcode = kKmkCcEvalInstr_unexport_all;
|
---|
6028 | pInstr->iLine = pCompiler->iLine;
|
---|
6029 | return 1;
|
---|
6030 | }
|
---|
6031 |
|
---|
6032 |
|
---|
6033 | /**
|
---|
6034 | * Parse the value of a 'define' at pCompiler->offNext.
|
---|
6035 | *
|
---|
6036 | * This will update 'offNext' to the start of the line following the 'endef'
|
---|
6037 | * matching the 'define' of the value.
|
---|
6038 | *
|
---|
6039 | * The value is prepared for kmk_cc_eval_strcpyv.
|
---|
6040 | *
|
---|
6041 | * @returns The value length that we've prepared for copying.
|
---|
6042 | * @param pCompiler The compiler state.
|
---|
6043 | * @param pfPlainValue Where to return whether this is a plain value or
|
---|
6044 | * one needing expansion.
|
---|
6045 | */
|
---|
6046 | static size_t kmk_cc_eval_parse_define_value(PKMKCCEVALCOMPILER pCompiler, int *pfPlainValue)
|
---|
6047 | {
|
---|
6048 | /*
|
---|
6049 | * Now we need to find the matching 'endef', we support nested ones.
|
---|
6050 | *
|
---|
6051 | * We look for the lines starting with 'endef' and 'define', like GNU
|
---|
6052 | * make does even if we really should also be checking for variable
|
---|
6053 | * qualifiers too.
|
---|
6054 | *
|
---|
6055 | * As we go on looking, we prepare the value in paStrCopySegs.
|
---|
6056 | *
|
---|
6057 | * Note! We duplicate code/logic from the top level compile loop here.
|
---|
6058 | */
|
---|
6059 | const char * const pszContent = pCompiler->pszContent;
|
---|
6060 | size_t cchContent = pCompiler->cchContent;
|
---|
6061 | int const chFirstEol = pCompiler->chFirstEol;
|
---|
6062 | size_t const cchEolSeq = pCompiler->cchEolSeq;
|
---|
6063 |
|
---|
6064 | unsigned cNestings = 1;
|
---|
6065 | size_t offNext = pCompiler->offNext;
|
---|
6066 | unsigned iLine = pCompiler->iLine;
|
---|
6067 |
|
---|
6068 | unsigned cSegs = 0;
|
---|
6069 | size_t cchValue = 0;
|
---|
6070 | int fPlainValue = 1;
|
---|
6071 |
|
---|
6072 | for (;;)
|
---|
6073 | {
|
---|
6074 | /*
|
---|
6075 | * Find end of line, preparing to copy it.
|
---|
6076 | */
|
---|
6077 | if (offNext < cchContent)
|
---|
6078 | {
|
---|
6079 | unsigned const cSegsAtStartOfLine = cSegs;
|
---|
6080 | size_t const cchValueStartOfLine = cchValue;
|
---|
6081 | size_t offFirstWord = offNext;
|
---|
6082 | const char *pchLine = &pszContent[offNext];
|
---|
6083 | size_t cchLine;
|
---|
6084 | const char *pchTmp;
|
---|
6085 |
|
---|
6086 | pCompiler->cEscEols = 0;
|
---|
6087 | pCompiler->iEscEol = 0;
|
---|
6088 |
|
---|
6089 | /* Add newline if necessary and make sure we've got a segment handy. */
|
---|
6090 | KMK_CC_EVAL_ENSURE_STRCOPY_SEGS(pCompiler, cSegs + 2);
|
---|
6091 | if (cSegs)
|
---|
6092 | {
|
---|
6093 | cchValue++;
|
---|
6094 | pCompiler->paStrCopySegs[cSegs].cchSrcAndPrependSpace = 1;
|
---|
6095 | pCompiler->paStrCopySegs[cSegs].pchSrc = "\n";
|
---|
6096 | cSegs++;
|
---|
6097 | }
|
---|
6098 |
|
---|
6099 | /* Simple case: No escaped EOL, nor the end of the input. */
|
---|
6100 | pchTmp = (const char *)memchr(&pszContent[offNext], chFirstEol, cchContent - offNext);
|
---|
6101 | if ( pchTmp
|
---|
6102 | && ( &pszContent[offNext] == pchTmp
|
---|
6103 | || pchTmp[-1] != '\\'))
|
---|
6104 | {
|
---|
6105 | if ( cchEolSeq == 1
|
---|
6106 | || pchTmp[1] == pCompiler->chSecondEol)
|
---|
6107 | {
|
---|
6108 | offNext = pchTmp - pszContent;
|
---|
6109 | cchLine = pchTmp - pchLine;
|
---|
6110 |
|
---|
6111 | cchValue += cchLine;
|
---|
6112 | pCompiler->paStrCopySegs[cSegs].cchSrcAndPrependSpace = cchLine;
|
---|
6113 | pCompiler->paStrCopySegs[cSegs].pchSrc = pchLine;
|
---|
6114 | cSegs++;
|
---|
6115 |
|
---|
6116 | while (offFirstWord < offNext && KMK_CC_EVAL_IS_SPACE(pszContent[offFirstWord]))
|
---|
6117 | offFirstWord++;
|
---|
6118 |
|
---|
6119 | offNext += cchEolSeq;
|
---|
6120 | }
|
---|
6121 | else
|
---|
6122 | kmk_cc_eval_fatal_eol(pCompiler, pchTmp, iLine, offNext);
|
---|
6123 | }
|
---|
6124 | /* The complicated, less common cases. */
|
---|
6125 | else
|
---|
6126 | {
|
---|
6127 | size_t fPendingSpace = 0;
|
---|
6128 | for (;;)
|
---|
6129 | {
|
---|
6130 | /* Find the first non-space char on this line. We always need it. */
|
---|
6131 | size_t offThisFirstWord = offNext;
|
---|
6132 | size_t offEol = pchTmp ? pchTmp - pszContent : cchContent;
|
---|
6133 | if (offFirstWord == offNext)
|
---|
6134 | {
|
---|
6135 | while (offFirstWord < offEol && KMK_CC_EVAL_IS_SPACE(pszContent[offFirstWord]))
|
---|
6136 | offFirstWord++;
|
---|
6137 | if (pCompiler->cEscEols > 0)
|
---|
6138 | offThisFirstWord = offFirstWord;
|
---|
6139 | }
|
---|
6140 | else
|
---|
6141 | while (offThisFirstWord < offEol && KMK_CC_EVAL_IS_SPACE(pszContent[offThisFirstWord]))
|
---|
6142 | offThisFirstWord++;
|
---|
6143 |
|
---|
6144 | /* We normally need one, so just make sure once. */
|
---|
6145 | KMK_CC_EVAL_ENSURE_STRCOPY_SEGS(pCompiler, cSegs + 1);
|
---|
6146 |
|
---|
6147 | if (pchTmp)
|
---|
6148 | {
|
---|
6149 | if ( cchEolSeq == 1
|
---|
6150 | || pchTmp[1] == pCompiler->chSecondEol)
|
---|
6151 | {
|
---|
6152 | size_t const offThis = offNext;
|
---|
6153 | size_t offEsc;
|
---|
6154 | int fDone;
|
---|
6155 | offNext = pchTmp - pszContent;
|
---|
6156 |
|
---|
6157 | /* Is it an escape sequence? */
|
---|
6158 | if ( !offNext
|
---|
6159 | || pchTmp[-1] != '\\')
|
---|
6160 | fDone = 1;
|
---|
6161 | else if (offNext < 2 || pchTmp[-2] != '\\')
|
---|
6162 | {
|
---|
6163 | offEsc = offNext - 1;
|
---|
6164 | fDone = 0;
|
---|
6165 | }
|
---|
6166 | else
|
---|
6167 | {
|
---|
6168 | /* Count how many backslashes there are. Must be odd number to be an escape
|
---|
6169 | sequence. Normally we keep half of them, except for command lines. */
|
---|
6170 | size_t cSlashes = 2;
|
---|
6171 | while (offNext >= cSlashes && pchTmp[0 - cSlashes] == '\\')
|
---|
6172 | cSlashes--;
|
---|
6173 | fDone = !(cSlashes & 1);
|
---|
6174 | offEsc = offNext - (cSlashes >> 1);
|
---|
6175 | }
|
---|
6176 |
|
---|
6177 | /* Anything to copy? */
|
---|
6178 | /** @todo fixme tomorrow! */
|
---|
6179 | cchLine = offThisFirstWord - offNext;
|
---|
6180 | if (cchLine)
|
---|
6181 | {
|
---|
6182 | pCompiler->paStrCopySegs[cSegs].cchSrcAndPrependSpace = fPendingSpace
|
---|
6183 | ? -(ssize_t)cchLine : (ssize_t)cchLine;
|
---|
6184 | pCompiler->paStrCopySegs[cSegs].pchSrc = &pszContent[offThisFirstWord];
|
---|
6185 | cSegs++;
|
---|
6186 | }
|
---|
6187 |
|
---|
6188 | if (fDone)
|
---|
6189 | {
|
---|
6190 | cchLine = &pszContent[offNext] - pchLine;
|
---|
6191 | offNext += cchEolSeq;
|
---|
6192 | break;
|
---|
6193 | }
|
---|
6194 |
|
---|
6195 | /* Record it. */
|
---|
6196 | if (pCompiler->cEscEols < pCompiler->cEscEolsAllocated) { /* likely */ }
|
---|
6197 | else
|
---|
6198 | {
|
---|
6199 | KMK_CC_ASSERT(pCompiler->cEscEols == pCompiler->cEscEolsAllocated);
|
---|
6200 | pCompiler->cEscEolsAllocated = pCompiler->cEscEolsAllocated
|
---|
6201 | ? pCompiler->cEscEolsAllocated * 2 : 2;
|
---|
6202 | pCompiler->paEscEols = (PKMKCCEVALESCEOL)xrealloc(pCompiler->paEscEols,
|
---|
6203 | pCompiler->cEscEolsAllocated
|
---|
6204 | * sizeof(pCompiler->paEscEols[0]));
|
---|
6205 | }
|
---|
6206 | pCompiler->paEscEols[pCompiler->cEscEols].offEsc = offEsc;
|
---|
6207 | pCompiler->paEscEols[pCompiler->cEscEols].offEol = offNext;
|
---|
6208 | pCompiler->cEscEols++;
|
---|
6209 |
|
---|
6210 | /* Anything to copy? */
|
---|
6211 | cchLine = offThisFirstWord - offNext;
|
---|
6212 | if (cchLine)
|
---|
6213 | {
|
---|
6214 | }
|
---|
6215 |
|
---|
6216 | /* Advance. */
|
---|
6217 | offNext += cchEolSeq;
|
---|
6218 | if (offFirstWord == offEsc)
|
---|
6219 | {
|
---|
6220 | offFirstWord = offNext;
|
---|
6221 | pCompiler->iEscEol++;
|
---|
6222 | }
|
---|
6223 | }
|
---|
6224 | else
|
---|
6225 | kmk_cc_eval_fatal_eol(pCompiler, pchTmp, pCompiler->iLine, off);
|
---|
6226 | }
|
---|
6227 | else
|
---|
6228 | {
|
---|
6229 | /* End of input. Happens only once per compilation, nothing to optimize for. */
|
---|
6230 |
|
---|
6231 | if (offFirstWord == offNext)
|
---|
6232 | while (offFirstWord < cchContent && KMK_CC_EVAL_IS_SPACE(pszContent[offFirstWord]))
|
---|
6233 | offFirstWord++;
|
---|
6234 |
|
---|
6235 | KMK_CC_EVAL_ENSURE_STRCOPY_SEGS(pCompiler, cSegs + 2);
|
---|
6236 | if (cSegs == cSegsAtStartOfLine)
|
---|
6237 | {
|
---|
6238 | /* No escaped EOLs. */
|
---|
6239 | cchLine = &pszContent[cchContent] - pchLine;
|
---|
6240 | cchValue += cchLine;
|
---|
6241 | pCompiler->paStrCopySegs[cSegs].cchSrcAndPrependSpace = cchLine;
|
---|
6242 | pCompiler->paStrCopySegs[cSegs].pchSrc = pchLine;
|
---|
6243 | cSegs++;
|
---|
6244 | }
|
---|
6245 | else
|
---|
6246 | {
|
---|
6247 | if (offFirstWordThisLine < cchContent)
|
---|
6248 | {
|
---|
6249 | cchLine = cchContent - offFirstWordThisLine;
|
---|
6250 | cchValue += cchLine;
|
---|
6251 | pCompiler->paStrCopySegs[cSegs].cchSrcAndPrependSpace = fPendingSpace
|
---|
6252 | ? -(ssize_t)cchLine : (ssize_t)cchLine;
|
---|
6253 | pCompiler->paStrCopySegs[cSegs].pchSrc = &pszContent[offFirstWordThisLine];
|
---|
6254 | cSegs++;
|
---|
6255 | }
|
---|
6256 | cchLine = &pszContent[cchContent] - pchLine;
|
---|
6257 | }
|
---|
6258 | offNext = cchContent;
|
---|
6259 | break;
|
---|
6260 | }
|
---|
6261 | pchTmp = (const char *)memchr(&pszContent[offNext], chFirstEol, cchContent - offNext);
|
---|
6262 | }
|
---|
6263 | }
|
---|
6264 | KMK_CC_ASSERT(offNext <= cchContent);
|
---|
6265 | KMK_CC_ASSERT(offNext >= off + cchLine);
|
---|
6266 | KMK_CC_ASSERT(off + cchLine <= cchContent && cchLine <= cchContent);
|
---|
6267 | KMK_CC_ASSERT(offFirstWord <= off + cchLine);
|
---|
6268 | KMK_CC_ASSERT(offFirstWord >= off);
|
---|
6269 | KMK_CC_ASSERT(pszContent[offFirstWord] != ' ' && pszContent[offFirstWord] != '\t');
|
---|
6270 |
|
---|
6271 | KMK_CC_EVAL_DPRINTF(("#%03u: %*.*s\n", pCompiler->iLine, (int)cchLine, (int)cchLine, &pszContent[off]));
|
---|
6272 |
|
---|
6273 | /*
|
---|
6274 | * Look for 'endef' and 'define' directives.
|
---|
6275 | */
|
---|
6276 | cchLine -= offFirstWord - off;
|
---|
6277 | if ( cchLine >= 5 /* shortest word is 5 chars ('endef', 'local') */
|
---|
6278 | && pchLine[0] != pCompiler->chCmdPrefix)
|
---|
6279 | {
|
---|
6280 | pchTmp = &pszContent[offFirstWord];
|
---|
6281 | if (!KMK_CC_EVAL_IS_1ST_IN_VARIABLE_KEYWORD(*pchTmp))
|
---|
6282 | { /* Kind of likely (and saves one indent). */ }
|
---|
6283 | else if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchTmp, cchLine, "endef", 5))
|
---|
6284 | {
|
---|
6285 | cNestings--;
|
---|
6286 | if (cNestings == 0)
|
---|
6287 | {
|
---|
6288 | cchValue = cchValueStartOfLine;
|
---|
6289 | cSegs = cSegsAtStartOfLine;
|
---|
6290 | break;
|
---|
6291 | }
|
---|
6292 | }
|
---|
6293 | else
|
---|
6294 | for (;;)
|
---|
6295 | {
|
---|
6296 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchTmp, cchLine, "define", 6))
|
---|
6297 | {
|
---|
6298 | cNestings++;
|
---|
6299 | break;
|
---|
6300 | }
|
---|
6301 |
|
---|
6302 | /* GNU make doesn't do this, but I think it makes sense. */
|
---|
6303 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchTmp, cchLine, "local", 5))
|
---|
6304 | {
|
---|
6305 | pchTmp += 5;
|
---|
6306 | cchLine -= 5;
|
---|
6307 | }
|
---|
6308 | else if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchTmp, cchLine, "export", 6))
|
---|
6309 | {
|
---|
6310 | pchTmp += 6;
|
---|
6311 | cchLine -= 6;
|
---|
6312 | }
|
---|
6313 | else if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchTmp, cchLine, "private", 7))
|
---|
6314 | {
|
---|
6315 | pchTmp += 7;
|
---|
6316 | cchLine -= 7;
|
---|
6317 | }
|
---|
6318 | else if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchTmp, cchLine, "override", 8))
|
---|
6319 | {
|
---|
6320 | pchTmp += 8;
|
---|
6321 | cchLine -= 8;
|
---|
6322 | }
|
---|
6323 | else
|
---|
6324 | break;
|
---|
6325 | KMK_CC_EVAL_SKIP_SPACES_AFTER_WORD(pCompiler, pchTmp, cchLine);
|
---|
6326 | }
|
---|
6327 | }
|
---|
6328 |
|
---|
6329 | /*
|
---|
6330 | * Advance to the next line.
|
---|
6331 | */
|
---|
6332 | iLine += pCompiler->cEscEols + 1;
|
---|
6333 | }
|
---|
6334 | else
|
---|
6335 | kmk_cc_eval_fatal(pCompiler, NULL, )
|
---|
6336 | }
|
---|
6337 |
|
---|
6338 | /*
|
---|
6339 | * Update globals and return values.
|
---|
6340 | */
|
---|
6341 | pCompiler->offNext = offNext;
|
---|
6342 | pCompiler->iLine = iLine;
|
---|
6343 | pCompiler->cStrCopySegs = cSegs;
|
---|
6344 |
|
---|
6345 | *pfPlainValue = fPlainValue;
|
---|
6346 | return cchValue;
|
---|
6347 | }
|
---|
6348 |
|
---|
6349 | /**
|
---|
6350 | * Parses a 'define variable' expression.
|
---|
6351 | *
|
---|
6352 | * A 'define' directive is final, any qualifiers must preceed it. So, we just
|
---|
6353 | * have to extract the variable name now, well and find the corresponding
|
---|
6354 | * 'endef'.
|
---|
6355 | *
|
---|
6356 | * @returns 1 to indicate we've handled a keyword (see
|
---|
6357 | * kmk_cc_eval_try_handle_keyword).
|
---|
6358 | * @param pCompiler The compiler state.
|
---|
6359 | * @param pchWord First char after 'define'.
|
---|
6360 | * @param cchLeft The number of chars left to parse on this line.
|
---|
6361 | * @param fQualifiers The qualifiers.
|
---|
6362 | */
|
---|
6363 | static int kmk_cc_eval_do_var_define(PKMKCCEVALCOMPILER pCompiler, const char *pchWord, size_t cchLeft, unsigned fQualifiers)
|
---|
6364 | {
|
---|
6365 | /*
|
---|
6366 | * Now comes the variable name. It may optionally be followed by an
|
---|
6367 | * assignment operator to indicate what kind of variable is being defined.
|
---|
6368 | */
|
---|
6369 | KMK_CC_EVAL_SKIP_SPACES_AFTER_WORD(pCompiler, pchWord, cchLeft);
|
---|
6370 | unsigned cWords = cchLeft ? kmk_cc_eval_parse_words(pCompiler, pchWord, cchLeft) : 0;
|
---|
6371 | if (cWords >= 1)
|
---|
6372 | {
|
---|
6373 | /*
|
---|
6374 | * Check for variable assignment operator. Kind of tedious...
|
---|
6375 | */
|
---|
6376 | KMKCCEVALINSTR enmOpcode;
|
---|
6377 | PKMKCCEVALWORD pVarWord = pCompiler->paWords;
|
---|
6378 | if ( cWords == 1
|
---|
6379 | && ( pVarWord->cchWord == 0
|
---|
6380 | || pVarWord->pchWord[pVarWord->cchWord - 1] != '='))
|
---|
6381 | enmOpcode = kKmkCcEvalInstr_define_recursive; /* very likely */
|
---|
6382 | else if ( pVarWord->cchWord > 0
|
---|
6383 | && pVarWord->pchWord[pVarWord->cchWord - 1] == '=')
|
---|
6384 | {
|
---|
6385 | if (pVarWord->cchWord == 1)
|
---|
6386 | enmOpcode = kKmkCcEvalInstr_define_recursive;
|
---|
6387 | else
|
---|
6388 | {
|
---|
6389 | char chPenultimate = pVarWord->pchWord[pVarWord->cchWord - 2];
|
---|
6390 | if (chPenultimate == '?')
|
---|
6391 | enmOpcode = kKmkCcEvalInstr_define_if_new;
|
---|
6392 | else if (chPenultimate == ':')
|
---|
6393 | enmOpcode = kKmkCcEvalInstr_assign_simple;
|
---|
6394 | else if (chPenultimate == '+')
|
---|
6395 | enmOpcode = kKmkCcEvalInstr_assign_append;
|
---|
6396 | else if (chPenultimate == '<')
|
---|
6397 | enmOpcode = kKmkCcEvalInstr_assign_prepend;
|
---|
6398 | else
|
---|
6399 | enmOpcode = kKmkCcEvalInstr_define_recursive;
|
---|
6400 | }
|
---|
6401 | pVarWord->cchWord -= enmOpcode == kKmkCcEvalInstr_define_recursive ? 1 : 2;
|
---|
6402 | if (cWords > 1)
|
---|
6403 | kmk_cc_eval_fatal(pCompiler, pCompiler->paWords[1].pchWord,
|
---|
6404 | "Bogus stuff after 'define' variable name and assignment operator");
|
---|
6405 | }
|
---|
6406 | else
|
---|
6407 | {
|
---|
6408 | PCKMKCCEVALWORD pOpWord = &pCompiler->paWords[1];
|
---|
6409 | KMK_CC_ASSERT(cWords > 1);
|
---|
6410 | if ( pOpWord->cchWord == 1
|
---|
6411 | && pOpWord->pchWord[0] == '=')
|
---|
6412 | enmOpcode = kKmkCcEvalInstr_define_recursive;
|
---|
6413 | else if ( pOpWord->cchWord == 2
|
---|
6414 | && pOpWord->pchWord[1] == '=')
|
---|
6415 | {
|
---|
6416 | char chFirst = pVarWord->pchWord[0];
|
---|
6417 | if (chFirst == '?')
|
---|
6418 | enmOpcode = kKmkCcEvalInstr_define_if_new;
|
---|
6419 | else if (chFirst == ':')
|
---|
6420 | enmOpcode = kKmkCcEvalInstr_assign_simple;
|
---|
6421 | else if (chFirst == '+')
|
---|
6422 | enmOpcode = kKmkCcEvalInstr_assign_append;
|
---|
6423 | else if (chFirst == '<')
|
---|
6424 | enmOpcode = kKmkCcEvalInstr_assign_prepend;
|
---|
6425 | else
|
---|
6426 | kmk_cc_eval_fatal(pCompiler, pOpWord->pchWord, "Bogus stuff after 'define' variable name");
|
---|
6427 | }
|
---|
6428 | else
|
---|
6429 | kmk_cc_eval_fatal(pCompiler, pOpWord->pchWord, "Bogus stuff after 'define' variable name");
|
---|
6430 | if (cWords > 2)
|
---|
6431 | kmk_cc_eval_fatal(pCompiler, pCompiler->paWords[2].pchWord,
|
---|
6432 | "Bogus stuff after 'define' variable name and assignment operator");
|
---|
6433 | }
|
---|
6434 |
|
---|
6435 | /*
|
---|
6436 | * The variable name must not be empty.
|
---|
6437 | */
|
---|
6438 | if (pVarWord->cchWord)
|
---|
6439 | {
|
---|
6440 | int const fPlainVarNm = pVarWord->enmToken == kKmkCcEvalToken_WordPlain;
|
---|
6441 | const char * pchVarNm = pVarWord->pchWord;
|
---|
6442 | size_t cchVarNm = pVarWord->cchWord;
|
---|
6443 | PKMKCCEVALASSIGN pInstr;
|
---|
6444 | size_t cchValue;
|
---|
6445 | const char *pszValue;
|
---|
6446 | int fPlainValue;
|
---|
6447 |
|
---|
6448 | if ( enmOpcode == kKmkCcEvalInstr_define_recursive
|
---|
6449 | || enmOpcode == kKmkCcEvalInstr_define_if_new)
|
---|
6450 | {
|
---|
6451 | PKMKCCEVALASSIGNDEF pInstrDef;
|
---|
6452 | pInstrDef = (PKMKCCEVALASSIGNDEF)kmk_cc_block_alloc_eval(pCompiler->ppBlockTail, sizeof(*pInstrDef));
|
---|
6453 | pInstr = &pInstrDef->AssignCore;
|
---|
6454 | pInstrDef->pEvalProg = NULL; /** @todo consider this later at some point, need some trial and error approach. */
|
---|
6455 | }
|
---|
6456 | else
|
---|
6457 | pInstr = (PKMKCCEVALASSIGN)kmk_cc_block_alloc_eval(pCompiler->ppBlockTail, sizeof(*pInstr));
|
---|
6458 |
|
---|
6459 | pInstr->Core.enmOpcode = enmOpcode;
|
---|
6460 | pInstr->Core.iLine = pCompiler->iLine;
|
---|
6461 | pInstr->fExport = (fQualifiers & KMK_CC_EVAL_QUALIFIER_EXPORT) != 0;
|
---|
6462 | pInstr->fOverride = (fQualifiers & KMK_CC_EVAL_QUALIFIER_OVERRIDE) != 0;
|
---|
6463 | pInstr->fPrivate = (fQualifiers & KMK_CC_EVAL_QUALIFIER_PRIVATE) != 0;
|
---|
6464 | pInstr->fLocal = (fQualifiers & KMK_CC_EVAL_QUALIFIER_LOCAL) != 0;
|
---|
6465 |
|
---|
6466 | cchValue = kmk_cc_eval_parse_define_value(pCompiler, &fPlainValue);
|
---|
6467 | pszValue = kmk_cc_eval_strdup_prepped(pCompiler, cchValue);
|
---|
6468 | if (fPlainVarNm)
|
---|
6469 | pchVarNm = strcache2_add(&variable_strcache, pchVarNm, cchVarNm);
|
---|
6470 | else
|
---|
6471 | {
|
---|
6472 | /** @todo fix work copying. */
|
---|
6473 | // pCompiler->iEscEol = iEscEolVarNm;
|
---|
6474 | cchVarNm = kmk_cc_eval_prep_normal_line_ex(pCompiler, pchVarNm, cchVarNm);
|
---|
6475 | pchVarNm = kmk_cc_eval_strdup_prepped(pCompiler, cchVarNm);
|
---|
6476 | }
|
---|
6477 | kmk_cc_block_realign(pCompiler->ppBlockTail);
|
---|
6478 | KMK_CC_EVAL_DPRINTF(("%s: define '%s'\n%s\nendef\n", g_apszEvalInstrNms[enmOpcode], pchVarNm, pszValue));
|
---|
6479 |
|
---|
6480 | kmk_cc_eval_init_subprogram_or_plain(pCompiler, &pInstr->Variable, pchVarNm, cchVarNm, fPlainVarNm);
|
---|
6481 | kmk_cc_eval_init_subprogram_or_plain(pCompiler, &pInstr->Value, pszValue, cchValue, fPlainValue);
|
---|
6482 |
|
---|
6483 | pInstr->pNext = (PKMKCCEVALCORE)kmk_cc_block_get_next_ptr(*pCompiler->ppBlockTail);
|
---|
6484 | }
|
---|
6485 | else
|
---|
6486 | kmk_cc_eval_fatal(pCompiler, pchWord, "Empty variable name after 'define'");
|
---|
6487 | }
|
---|
6488 | else
|
---|
6489 | kmk_cc_eval_fatal(pCompiler, pchWord, "Expected variable name after 'define'");
|
---|
6490 | return 1;
|
---|
6491 | }
|
---|
6492 |
|
---|
6493 |
|
---|
6494 | /**
|
---|
6495 | * Emits a 'expand(-and-eval)' instruction.
|
---|
6496 | *
|
---|
6497 | * @returns 1 to indicate we've handled a keyword (see
|
---|
6498 | * kmk_cc_eval_try_handle_keyword).
|
---|
6499 | * @param pCompiler The compiler state.
|
---|
6500 | * @param pchSubprog The subprogram that needs expanding.
|
---|
6501 | * @param cchSubprog The length of the subprogram.
|
---|
6502 | * @param iEscEol The escaped EOL index corresponding to pchSubprog.
|
---|
6503 | */
|
---|
6504 | static int kmk_cc_eval_emit_expand(PKMKCCEVALCOMPILER pCompiler, const char *pchSubprog, size_t cchSubprog, unsigned iEscEolVarNm)
|
---|
6505 | {
|
---|
6506 | /*
|
---|
6507 | * We're unexporting all variables.
|
---|
6508 | */
|
---|
6509 | size_t cchCopy;
|
---|
6510 | char *pszCopy;
|
---|
6511 | PKMKCCEVALEXPAND pInstr;
|
---|
6512 |
|
---|
6513 | pCompiler->iEscEol = iEscEolVarNm;
|
---|
6514 | cchCopy = kmk_cc_eval_prep_normal_line_ex(pCompiler, pchSubprog, cchSubprog);
|
---|
6515 | pszCopy = kmk_cc_eval_strdup_prepped(pCompiler, cchCopy);
|
---|
6516 | kmk_cc_block_realign(pCompiler->ppBlockTail);
|
---|
6517 |
|
---|
6518 | pInstr = (PKMKCCEVALEXPAND)kmk_cc_block_alloc_eval(pCompiler->ppBlockTail, sizeof(*pInstr));
|
---|
6519 | pInstr->Core.enmOpcode = kKmkCcEvalInstr_expand;
|
---|
6520 | pInstr->Core.iLine = pCompiler->iLine;
|
---|
6521 | pInstr->uPadding = 0;
|
---|
6522 | /** @todo Make the subprogram embed necessary strings. */
|
---|
6523 | kmk_cc_eval_compile_string_exp_subprog(pCompiler, pszCopy, cchCopy, &pInstr->Subprog);
|
---|
6524 |
|
---|
6525 | return 1;
|
---|
6526 | }
|
---|
6527 |
|
---|
6528 |
|
---|
6529 | static int kmk_cc_eval_handle_assignment_or_recipe(PKMKCCEVALCOMPILER pCompiler, const char *pchWord, size_t cchLeft,
|
---|
6530 | unsigned fQualifiers)
|
---|
6531 | {
|
---|
6532 | /*
|
---|
6533 | * We're currently at a word which may or may not be a variable name
|
---|
6534 | * followed by an assignment operator, alternatively it must be a recipe.
|
---|
6535 | * We need to figure this out and deal with it in the most efficient
|
---|
6536 | * manner as this is a very common occurence.
|
---|
6537 | */
|
---|
6538 | unsigned const iEscEolVarNm = pCompiler->iEscEol;
|
---|
6539 | int fPlainVarNm = 1;
|
---|
6540 | const char *pchVarNm = pchWord;
|
---|
6541 | size_t cchVarNm;
|
---|
6542 | size_t cch = 0;
|
---|
6543 | size_t cchSubprog = 0;
|
---|
6544 | char ch;
|
---|
6545 |
|
---|
6546 | /*
|
---|
6547 | * The variable name. Complicate by there being no requirement of a space
|
---|
6548 | * preceeding the assignment operator, as well as that the variable name
|
---|
6549 | * may include variable references with spaces (function++) in them.
|
---|
6550 | */
|
---|
6551 | for (;;)
|
---|
6552 | {
|
---|
6553 | if (cch < cchLeft)
|
---|
6554 | { /*likely*/ }
|
---|
6555 | else
|
---|
6556 | {
|
---|
6557 | /* Single word, join paths with word + whitespace. */
|
---|
6558 | KMK_CC_ASSERT(cch == cchLeft);
|
---|
6559 | cchVarNm = cch;
|
---|
6560 | pchWord += cch;
|
---|
6561 | cchLeft -= cch;
|
---|
6562 | break;
|
---|
6563 | }
|
---|
6564 |
|
---|
6565 | ch = pchWord[cch];
|
---|
6566 | if (!KMK_CC_EVAL_IS_SPACE_DOLLAR_SLASH_OR_ASSIGN(ch))
|
---|
6567 | cch++;
|
---|
6568 | /* Space? */
|
---|
6569 | else if (KMK_CC_EVAL_IS_SPACE(ch))
|
---|
6570 | {
|
---|
6571 | cchVarNm = cch;
|
---|
6572 | pchWord += cch;
|
---|
6573 | cchLeft -= cch;
|
---|
6574 | KMK_CC_EVAL_SKIP_SPACES_AFTER_WORD(pCompiler, pchWord, cchLeft);
|
---|
6575 | break;
|
---|
6576 | }
|
---|
6577 | /* Variable expansion may contain spaces, so handle specially. */
|
---|
6578 | else if (ch == '$')
|
---|
6579 | {
|
---|
6580 | size_t const offStart = cch;
|
---|
6581 | cch = kmk_cc_eval_parse_var_exp(pCompiler, pchWord, cchLeft, cch);
|
---|
6582 | cchSubprog += cch - offStart;
|
---|
6583 | fPlainVarNm = 0;
|
---|
6584 | }
|
---|
6585 | /* Check out potential recipe, simple assignment or DOS drive letter separator. */
|
---|
6586 | else if (ch == ':')
|
---|
6587 | {
|
---|
6588 | if ( cch + 1 < cchLeft
|
---|
6589 | && pchWord[cch + 1] != '=')
|
---|
6590 | {
|
---|
6591 | cchVarNm = cch;
|
---|
6592 | pchWord += cch;
|
---|
6593 | cchLeft -= cch;
|
---|
6594 | break;
|
---|
6595 | }
|
---|
6596 | #ifdef HAVE_DOS_PATHS
|
---|
6597 | /* Don't confuse the first colon in:
|
---|
6598 | C:/Windows/System32/Kernel32.dll: C:/Windows/System32/NtDll.dll
|
---|
6599 | for a recipe, it is only the second one which counts. */
|
---|
6600 | if ( cch == 1
|
---|
6601 | && isalpha((unsigned char)pchWord[0]))
|
---|
6602 | cch++;
|
---|
6603 | else
|
---|
6604 | #endif
|
---|
6605 | if (!fQualifiers)
|
---|
6606 | return kmk_cc_eval_handle_recipe_cont_colon(pCompiler, pchWord, cch,
|
---|
6607 | fPlainVarNm
|
---|
6608 | ? kKmkCcEvalToken_WordPlain : kKmkCcEvalToken_WordWithDollar,
|
---|
6609 | pchWord + cch, cchLeft - cch);
|
---|
6610 | /** @todo we may have words already preparsed here so restarting is easy... */
|
---|
6611 | return 0; /* retry with preceeding keywords */
|
---|
6612 | }
|
---|
6613 | /* Check out assignment operator. */
|
---|
6614 | else if (ch == '=')
|
---|
6615 | {
|
---|
6616 | if (cch > 0)
|
---|
6617 | {
|
---|
6618 | char chPrev = pchWord[cch - 1];
|
---|
6619 | if (chPrev == ':' || chPrev == '+' || chPrev == '?' || chPrev == '<')
|
---|
6620 | cch--;
|
---|
6621 | cchVarNm = cch;
|
---|
6622 | pchWord += cch;
|
---|
6623 | cchLeft -= cch;
|
---|
6624 | break;
|
---|
6625 | }
|
---|
6626 | kmk_cc_eval_fatal(pCompiler, pchWord, "Empty variable name.");
|
---|
6627 | }
|
---|
6628 | /* Check out potential escaped EOL sequence. */
|
---|
6629 | else if (ch == '\\')
|
---|
6630 | {
|
---|
6631 | unsigned const iEscEol = pCompiler->iEscEol;
|
---|
6632 | if (iEscEol >= pCompiler->cEscEols)
|
---|
6633 | cch++;
|
---|
6634 | else
|
---|
6635 | {
|
---|
6636 | size_t offCur = &pchWord[cch] - pCompiler->pszContent;
|
---|
6637 | if (offCur < pCompiler->paEscEols[iEscEol].offEol)
|
---|
6638 | cch++;
|
---|
6639 | else
|
---|
6640 | {
|
---|
6641 | cchVarNm = cch;
|
---|
6642 | KMK_CC_ASSERT(offCur == pCompiler->paEscEols[iEscEol].offEol);
|
---|
6643 | cch = pCompiler->paEscEols[iEscEol].offEol + pCompiler->cchEolSeq - offCur;
|
---|
6644 | pCompiler->iEscEol = iEscEol + 1;
|
---|
6645 | pchWord += cch;
|
---|
6646 | cchLeft -= cch;
|
---|
6647 | KMK_CC_EVAL_SKIP_SPACES(pCompiler, pchWord, cchLeft);
|
---|
6648 | break;
|
---|
6649 | }
|
---|
6650 | }
|
---|
6651 | }
|
---|
6652 | else
|
---|
6653 | KMK_CC_ASSERT(0);
|
---|
6654 | }
|
---|
6655 |
|
---|
6656 | /*
|
---|
6657 | * Check for assignment operator.
|
---|
6658 | */
|
---|
6659 | if (cchLeft)
|
---|
6660 | {
|
---|
6661 | size_t cchValue;
|
---|
6662 | PKMKCCEVALASSIGN pInstr;
|
---|
6663 | KMKCCEVALINSTR enmOpcode;
|
---|
6664 | int fPlainValue;
|
---|
6665 | char *pszValue;
|
---|
6666 |
|
---|
6667 | ch = *pchWord;
|
---|
6668 | if (ch == '=')
|
---|
6669 | {
|
---|
6670 | enmOpcode = kKmkCcEvalInstr_assign_recursive;
|
---|
6671 | pchWord++;
|
---|
6672 | cchLeft--;
|
---|
6673 | }
|
---|
6674 | else if (cchLeft >= 2 && pchWord[1] == '=')
|
---|
6675 | {
|
---|
6676 | if (ch == ':')
|
---|
6677 | enmOpcode = kKmkCcEvalInstr_assign_simple;
|
---|
6678 | else if (ch == '+')
|
---|
6679 | enmOpcode = kKmkCcEvalInstr_assign_append;
|
---|
6680 | else if (ch == '<')
|
---|
6681 | enmOpcode = kKmkCcEvalInstr_assign_prepend;
|
---|
6682 | else if (ch == '?')
|
---|
6683 | enmOpcode = kKmkCcEvalInstr_assign_if_new;
|
---|
6684 | else if (!fQualifiers)
|
---|
6685 | return kmk_cc_eval_handle_recipe_cont_2nd_word(pCompiler, pchVarNm, cchVarNm, pchWord, cchLeft);
|
---|
6686 | else
|
---|
6687 | return 0; /* retry without preceding keywords */
|
---|
6688 | pchWord += 2;
|
---|
6689 | cchLeft -= 2;
|
---|
6690 | }
|
---|
6691 | else if (!fQualifiers)
|
---|
6692 | return kmk_cc_eval_handle_recipe_cont_2nd_word(pCompiler, pchVarNm, cchVarNm, pchWord, cchLeft);
|
---|
6693 | else
|
---|
6694 | return 0; /* retry without preceding keywords */
|
---|
6695 |
|
---|
6696 | /*
|
---|
6697 | * Skip leading spaces, if any and prep the value for copying.
|
---|
6698 | */
|
---|
6699 | KMK_CC_EVAL_SKIP_SPACES(pCompiler, pchWord, cchLeft);
|
---|
6700 | cchValue = kmk_cc_eval_prep_normal_line(pCompiler, pchWord, cchLeft);
|
---|
6701 | fPlainValue = memchr(pchWord, '$', cchLeft) == NULL;
|
---|
6702 |
|
---|
6703 | /*
|
---|
6704 | * Emit the instruction.
|
---|
6705 | */
|
---|
6706 | kmk_cc_eval_end_of_recipe(pCompiler, pchWord);
|
---|
6707 |
|
---|
6708 | pInstr = (PKMKCCEVALASSIGN)kmk_cc_block_alloc_eval(pCompiler->ppBlockTail, sizeof(*pInstr));
|
---|
6709 | pInstr->Core.enmOpcode = enmOpcode;
|
---|
6710 | pInstr->Core.iLine = pCompiler->iLine;
|
---|
6711 | pInstr->fExport = (fQualifiers & KMK_CC_EVAL_QUALIFIER_EXPORT) != 0;
|
---|
6712 | pInstr->fOverride = (fQualifiers & KMK_CC_EVAL_QUALIFIER_OVERRIDE) != 0;
|
---|
6713 | pInstr->fPrivate = (fQualifiers & KMK_CC_EVAL_QUALIFIER_PRIVATE) != 0;
|
---|
6714 | pInstr->fLocal = (fQualifiers & KMK_CC_EVAL_QUALIFIER_LOCAL) != 0;
|
---|
6715 |
|
---|
6716 | /* We copy the value before messing around with the variable name since
|
---|
6717 | we have to do more iEolEsc saves & restores the other way around. */
|
---|
6718 | pszValue = kmk_cc_eval_strdup_prepped(pCompiler, cchValue);
|
---|
6719 | if (fPlainVarNm)
|
---|
6720 | pchVarNm = strcache2_add(&variable_strcache, pchVarNm, cchVarNm);
|
---|
6721 | else
|
---|
6722 | {
|
---|
6723 | pCompiler->iEscEol = iEscEolVarNm;
|
---|
6724 | cchVarNm = kmk_cc_eval_prep_normal_line_ex(pCompiler, pchVarNm, cchVarNm);
|
---|
6725 | pchVarNm = kmk_cc_eval_strdup_prepped(pCompiler, cchVarNm);
|
---|
6726 | }
|
---|
6727 | kmk_cc_block_realign(pCompiler->ppBlockTail);
|
---|
6728 | KMK_CC_EVAL_DPRINTF(("%s: '%s' '%s'\n", g_apszEvalInstrNms[enmOpcode], pchVarNm, pszValue));
|
---|
6729 |
|
---|
6730 | kmk_cc_eval_init_subprogram_or_plain(pCompiler, &pInstr->Variable, pchVarNm, cchVarNm, fPlainVarNm);
|
---|
6731 | kmk_cc_eval_init_subprogram_or_plain(pCompiler, &pInstr->Value, pszValue, cchValue, fPlainValue);
|
---|
6732 |
|
---|
6733 | pInstr->pNext = (PKMKCCEVALCORE)kmk_cc_block_get_next_ptr(*pCompiler->ppBlockTail);
|
---|
6734 | }
|
---|
6735 | /*
|
---|
6736 | * This could be one or more function calls.
|
---|
6737 | */
|
---|
6738 | else if (!fPlainVarNm && cchVarNm == cchSubprog && fQualifiers == 0)
|
---|
6739 | return kmk_cc_eval_emit_expand(pCompiler, pchVarNm, cchVarNm, iEscEolVarNm);
|
---|
6740 | else if (!fPlainVarNm)
|
---|
6741 | kmk_cc_eval_fatal(pCompiler, pchWord,
|
---|
6742 | "Not variable assignment. Could be a complicated indirect recipe definition, however that's currently not supported.");
|
---|
6743 | else
|
---|
6744 | kmk_cc_eval_fatal(pCompiler, pchWord, "Neither recipe nor variable assignment");
|
---|
6745 | return 1;
|
---|
6746 | }
|
---|
6747 |
|
---|
6748 |
|
---|
6749 | /**
|
---|
6750 | * Parses a 'local [override] variable = value', 'local define variable', and
|
---|
6751 | * 'local undefine variable [...]' expressions.
|
---|
6752 | *
|
---|
6753 | * The 'local' directive must be first and it does not permit any qualifiers at
|
---|
6754 | * the moment. Should any be added later, they will have to come after 'local'.
|
---|
6755 | *
|
---|
6756 | * @returns 1 to indicate we've handled a keyword (see
|
---|
6757 | * kmk_cc_eval_try_handle_keyword).
|
---|
6758 | * @param pCompiler The compiler state.
|
---|
6759 | * @param pchWord First char after 'local'.
|
---|
6760 | * @param cchLeft The number of chars left to parse on this line.
|
---|
6761 | * @param fQualifiers The qualifiers.
|
---|
6762 | */
|
---|
6763 | static int kmk_cc_eval_do_var_local(PKMKCCEVALCOMPILER pCompiler, const char *pchWord, size_t cchLeft)
|
---|
6764 | {
|
---|
6765 | KMK_CC_EVAL_SKIP_SPACES_AFTER_WORD(pCompiler, pchWord, cchLeft);
|
---|
6766 | if (cchLeft)
|
---|
6767 | {
|
---|
6768 | /*
|
---|
6769 | * Check for 'local define' and 'local undefine'
|
---|
6770 | */
|
---|
6771 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "define", 6)) /* final */
|
---|
6772 | return kmk_cc_eval_do_var_define(pCompiler, pchWord + 6, cchLeft + 6, KMK_CC_EVAL_QUALIFIER_LOCAL);
|
---|
6773 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "undefine", 8)) /* final */
|
---|
6774 | return kmk_cc_eval_do_var_undefine(pCompiler, pchWord + 8, cchLeft + 8, KMK_CC_EVAL_QUALIFIER_LOCAL);
|
---|
6775 |
|
---|
6776 | /*
|
---|
6777 | * Simpler to just join paths with the rest here, even if we could
|
---|
6778 | * probably optimize the parsing a little if we liked.
|
---|
6779 | */
|
---|
6780 | return kmk_cc_eval_handle_assignment_or_recipe(pCompiler, pchWord, cchLeft, KMK_CC_EVAL_QUALIFIER_LOCAL);
|
---|
6781 | }
|
---|
6782 | kmk_cc_eval_fatal(pCompiler, pchWord, "Expected variable name, assignment operator and value after 'local'");
|
---|
6783 | return 1;
|
---|
6784 | }
|
---|
6785 |
|
---|
6786 |
|
---|
6787 | /**
|
---|
6788 | * We've found one variable qualification keyword, now continue parsing and see
|
---|
6789 | * if this is some kind of variable assignment expression or not.
|
---|
6790 | *
|
---|
6791 | * @returns 1 if variable assignment, 0 if not.
|
---|
6792 | * @param pCompiler The compiler state.
|
---|
6793 | * @param pchWord First char after the first qualifier.
|
---|
6794 | * @param cchLeft The number of chars left to parse on this line.
|
---|
6795 | * @param fQualifiers The qualifier.
|
---|
6796 | */
|
---|
6797 | static int kmk_cc_eval_try_handle_var_with_keywords(PKMKCCEVALCOMPILER pCompiler, const char *pchWord, size_t cchLeft,
|
---|
6798 | unsigned fQualifiers)
|
---|
6799 | {
|
---|
6800 | for (;;)
|
---|
6801 | {
|
---|
6802 | KMK_CC_EVAL_SKIP_SPACES_AFTER_WORD(pCompiler, pchWord, cchLeft);
|
---|
6803 | if (cchLeft)
|
---|
6804 | {
|
---|
6805 | char ch = *pchWord;
|
---|
6806 | if (KMK_CC_EVAL_IS_1ST_IN_VARIABLE_KEYWORD(ch))
|
---|
6807 | {
|
---|
6808 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "define", 6)) /* final */
|
---|
6809 | return kmk_cc_eval_do_var_define(pCompiler, pchWord + 6, cchLeft - 6, fQualifiers);
|
---|
6810 |
|
---|
6811 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "undefine", 8)) /* final */
|
---|
6812 | return kmk_cc_eval_do_var_undefine(pCompiler, pchWord + 8, cchLeft -86, fQualifiers);
|
---|
6813 |
|
---|
6814 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "unexport", 8)) /* final */
|
---|
6815 | return kmk_cc_eval_do_var_unexport(pCompiler, pchWord + 8, cchLeft - 8, fQualifiers);
|
---|
6816 |
|
---|
6817 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "export", 6))
|
---|
6818 | {
|
---|
6819 | if (!(fQualifiers & KMK_CC_EVAL_QUALIFIER_EXPORT))
|
---|
6820 | fQualifiers |= KMK_CC_EVAL_QUALIFIER_EXPORT;
|
---|
6821 | else
|
---|
6822 | kmk_cc_eval_warn(pCompiler, pchWord, "'export' qualifier repeated");
|
---|
6823 | pchWord += 6;
|
---|
6824 | cchLeft -= 6;
|
---|
6825 | continue;
|
---|
6826 | }
|
---|
6827 |
|
---|
6828 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "override", 8))
|
---|
6829 | {
|
---|
6830 | if (!(fQualifiers & KMK_CC_EVAL_QUALIFIER_OVERRIDE))
|
---|
6831 | fQualifiers |= KMK_CC_EVAL_QUALIFIER_OVERRIDE;
|
---|
6832 | else
|
---|
6833 | kmk_cc_eval_warn(pCompiler, pchWord, "'override' qualifier repeated");
|
---|
6834 | pchWord += 8;
|
---|
6835 | cchLeft -= 8;
|
---|
6836 | continue;
|
---|
6837 | }
|
---|
6838 |
|
---|
6839 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "private", 7))
|
---|
6840 | {
|
---|
6841 | if (!(fQualifiers & KMK_CC_EVAL_QUALIFIER_PRIVATE))
|
---|
6842 | fQualifiers |= KMK_CC_EVAL_QUALIFIER_PRIVATE;
|
---|
6843 | else
|
---|
6844 | kmk_cc_eval_warn(pCompiler, pchWord, "'private' qualifier repeated");
|
---|
6845 | pchWord += 7;
|
---|
6846 | cchLeft -= 7;
|
---|
6847 | continue;
|
---|
6848 | }
|
---|
6849 | }
|
---|
6850 |
|
---|
6851 | /*
|
---|
6852 | * Not a keyword, likely variable name followed by an assignment
|
---|
6853 | * operator and a value. Do a rough check for the assignment operator
|
---|
6854 | * and join paths with the unqualified assignment handling code.
|
---|
6855 | */
|
---|
6856 | {
|
---|
6857 | const char *pchEqual = (const char *)memchr(pchWord, '=', cchLeft);
|
---|
6858 | if (pchEqual)
|
---|
6859 | return kmk_cc_eval_handle_assignment_or_recipe(pCompiler, pchWord, cchLeft, fQualifiers);
|
---|
6860 | }
|
---|
6861 | return 0;
|
---|
6862 | }
|
---|
6863 | else
|
---|
6864 | kmk_cc_eval_fatal(pCompiler, NULL,
|
---|
6865 | "Expected assignment operator or variable directive after variable qualifier(s)\n");
|
---|
6866 | }
|
---|
6867 | }
|
---|
6868 |
|
---|
6869 |
|
---|
6870 | /**
|
---|
6871 | * Parses 'export [variable]' and 'export [qualifiers] variable = value'
|
---|
6872 | * expressions.
|
---|
6873 | *
|
---|
6874 | * When we find the 'export' directive at the start of a line, we need to
|
---|
6875 | * continue parsing with till we can tell the difference between the two forms.
|
---|
6876 | *
|
---|
6877 | * @returns 1 to indicate we've handled a keyword (see
|
---|
6878 | * kmk_cc_eval_try_handle_keyword).
|
---|
6879 | * @param pCompiler The compiler state.
|
---|
6880 | * @param pchWord First char after 'define'.
|
---|
6881 | * @param cchLeft The number of chars left to parse on this line.
|
---|
6882 | */
|
---|
6883 | static int kmk_cc_eval_handle_var_export(PKMKCCEVALCOMPILER pCompiler, const char *pchWord, size_t cchLeft)
|
---|
6884 | {
|
---|
6885 | KMK_CC_EVAL_SKIP_SPACES_AFTER_WORD(pCompiler, pchWord, cchLeft);
|
---|
6886 |
|
---|
6887 | if (cchLeft)
|
---|
6888 | {
|
---|
6889 | unsigned iSavedEscEol;
|
---|
6890 | unsigned cWords;
|
---|
6891 |
|
---|
6892 | /*
|
---|
6893 | * We need to figure out whether this is an assignment or a export statement,
|
---|
6894 | * in the latter case join paths with 'export' and 'undefine'.
|
---|
6895 | */
|
---|
6896 | const char *pchEqual = (const char *)memchr(pchWord, '=', cchLeft);
|
---|
6897 | if (!pchEqual)
|
---|
6898 | return kmk_cc_eval_do_with_variable_list(pCompiler, pchWord, cchLeft, kKmkCcEvalInstr_export, 0 /*fQualifiers*/);
|
---|
6899 |
|
---|
6900 | /*
|
---|
6901 | * Found an '=', could be an assignment. Let's take the easy way out
|
---|
6902 | * and just parse the whole statement into words like we would do if
|
---|
6903 | * it wasn't an assignment, and then check the words out for
|
---|
6904 | * assignment keywords and operators.
|
---|
6905 | */
|
---|
6906 | iSavedEscEol = pCompiler->iEscEol;
|
---|
6907 | cWords = kmk_cc_eval_parse_words(pCompiler, pchWord, cchLeft);
|
---|
6908 | if (cWords)
|
---|
6909 | {
|
---|
6910 | PKMKCCEVALVARIABLES pInstr;
|
---|
6911 | PKMKCCEVALWORD pWord = pCompiler->paWords;
|
---|
6912 | unsigned iWord = 0;
|
---|
6913 | while (iWord < cWords)
|
---|
6914 | {
|
---|
6915 | /* Trailing assignment operator or terminal assignment directive ('undefine'
|
---|
6916 | and 'unexport' makes no sense here but GNU make ignores that). */
|
---|
6917 | if ( ( pWord->cchWord > 1
|
---|
6918 | && pWord->pchWord[pWord->cchWord - 1] == '=')
|
---|
6919 | || KMK_CC_STRCMP_CONST(pWord->pchWord, pWord->cchWord, "define", 6)
|
---|
6920 | || KMK_CC_STRCMP_CONST(pWord->pchWord, pWord->cchWord, "undefine", 8)
|
---|
6921 | || KMK_CC_STRCMP_CONST(pWord->pchWord, pWord->cchWord, "unexport", 8) )
|
---|
6922 | {
|
---|
6923 | pCompiler->iEscEol = iSavedEscEol;
|
---|
6924 | return kmk_cc_eval_try_handle_var_with_keywords(pCompiler, pchWord, cchLeft, KMK_CC_EVAL_QUALIFIER_EXPORT);
|
---|
6925 | }
|
---|
6926 |
|
---|
6927 | /* If not a variable assignment qualifier, it must be a variable name
|
---|
6928 | followed by an assignment operator. */
|
---|
6929 | if (iWord + 1 < cWords)
|
---|
6930 | {
|
---|
6931 | if ( !KMK_CC_STRCMP_CONST(pWord->pchWord, pWord->cchWord, "export", 6)
|
---|
6932 | && !KMK_CC_STRCMP_CONST(pWord->pchWord, pWord->cchWord, "private", 7)
|
---|
6933 | && !KMK_CC_STRCMP_CONST(pWord->pchWord, pWord->cchWord, "override", 8))
|
---|
6934 | {
|
---|
6935 | pWord++;
|
---|
6936 | if ( pWord->cchWord > 0
|
---|
6937 | && ( pWord->pchWord[0] == '='
|
---|
6938 | || ( pWord->cchWord > 1
|
---|
6939 | && pWord->pchWord[1] == '='
|
---|
6940 | && ( pWord->pchWord[0] == ':'
|
---|
6941 | || pWord->pchWord[0] == '+'
|
---|
6942 | || pWord->pchWord[0] == '?'
|
---|
6943 | || pWord->pchWord[0] == '<') ) ) )
|
---|
6944 | {
|
---|
6945 | pCompiler->iEscEol = iSavedEscEol;
|
---|
6946 | return kmk_cc_eval_try_handle_var_with_keywords(pCompiler, pchWord, cchLeft,
|
---|
6947 | KMK_CC_EVAL_QUALIFIER_EXPORT);
|
---|
6948 | }
|
---|
6949 | break;
|
---|
6950 | }
|
---|
6951 | }
|
---|
6952 | else
|
---|
6953 | break;
|
---|
6954 | /* next */
|
---|
6955 | pWord++;
|
---|
6956 | iWord++;
|
---|
6957 | }
|
---|
6958 |
|
---|
6959 | /*
|
---|
6960 | * It's not an assignment.
|
---|
6961 | * (This is the same as kmk_cc_eval_do_with_variable_list does.)
|
---|
6962 | */
|
---|
6963 | pInstr = (PKMKCCEVALVARIABLES)kmk_cc_block_alloc_eval(pCompiler->ppBlockTail, KMKCCEVALVARIABLES_SIZE(cWords));
|
---|
6964 | pInstr->Core.enmOpcode = kKmkCcEvalInstr_export;
|
---|
6965 | pInstr->Core.iLine = pCompiler->iLine;
|
---|
6966 | pInstr->cVars = cWords;
|
---|
6967 | kmk_cc_eval_init_spp_array_from_duplicated_words(pCompiler, cWords, pCompiler->paWords, pInstr->aVars);
|
---|
6968 | kmk_cc_block_realign(pCompiler->ppBlockTail);
|
---|
6969 | }
|
---|
6970 | else
|
---|
6971 | KMK_CC_ASSERT(0);
|
---|
6972 | }
|
---|
6973 | else
|
---|
6974 | {
|
---|
6975 | /*
|
---|
6976 | * We're exporting all variables.
|
---|
6977 | */
|
---|
6978 | PKMKCCEVALCORE pInstr = kmk_cc_block_alloc_eval(pCompiler->ppBlockTail, sizeof(*pInstr));
|
---|
6979 | pInstr->enmOpcode = kKmkCcEvalInstr_export_all;
|
---|
6980 | pInstr->iLine = pCompiler->iLine;
|
---|
6981 | }
|
---|
6982 | return 1;
|
---|
6983 | }
|
---|
6984 |
|
---|
6985 |
|
---|
6986 | /**
|
---|
6987 | * When entering this function we know that the first two character in the first
|
---|
6988 | * word both independently occurs in keywords.
|
---|
6989 | *
|
---|
6990 | * @returns 1 if make directive or qualified variable assignment, 0 if neither.
|
---|
6991 | * @param pCompiler The compiler state.
|
---|
6992 | * @param ch The first char.
|
---|
6993 | * @param pchWord Pointer to the first word.
|
---|
6994 | * @param cchLeft Number of characters left to parse starting at
|
---|
6995 | * @a cchLeft.
|
---|
6996 | */
|
---|
6997 | int kmk_cc_eval_try_handle_keyword(PKMKCCEVALCOMPILER pCompiler, char ch, const char *pchWord, size_t cchLeft)
|
---|
6998 | {
|
---|
6999 | unsigned iSavedEscEol = pCompiler->iEscEol;
|
---|
7000 |
|
---|
7001 | KMK_CC_ASSERT(cchLeft >= 2);
|
---|
7002 | KMK_CC_ASSERT(ch == pchWord[0]);
|
---|
7003 | KMK_CC_ASSERT(KMK_CC_EVAL_IS_1ST_IN_KEYWORD(pchWord[0]));
|
---|
7004 | KMK_CC_ASSERT(KMK_CC_EVAL_IS_2ND_IN_KEYWORD(pchWord[1]));
|
---|
7005 |
|
---|
7006 | /*
|
---|
7007 | * If it's potentially a variable related keyword, check that out first.
|
---|
7008 | */
|
---|
7009 | if (KMK_CC_EVAL_IS_1ST_IN_VARIABLE_KEYWORD(ch))
|
---|
7010 | {
|
---|
7011 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "local", 5))
|
---|
7012 | return kmk_cc_eval_do_var_local(pCompiler, pchWord + 5, cchLeft - 5);
|
---|
7013 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "define", 6))
|
---|
7014 | return kmk_cc_eval_do_var_define(pCompiler, pchWord + 6, cchLeft - 6, 0);
|
---|
7015 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "export", 6))
|
---|
7016 | return kmk_cc_eval_handle_var_export(pCompiler, pchWord + 6, cchLeft - 6);
|
---|
7017 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "undefine", 8))
|
---|
7018 | return kmk_cc_eval_do_var_undefine(pCompiler, pchWord + 8, cchLeft - 8, 0);
|
---|
7019 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "unexport", 8))
|
---|
7020 | return kmk_cc_eval_do_var_unexport(pCompiler, pchWord + 8, cchLeft - 8, 0);
|
---|
7021 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "override", 8))
|
---|
7022 | {
|
---|
7023 | if (kmk_cc_eval_try_handle_var_with_keywords(pCompiler, pchWord + 8, cchLeft - 8, KMK_CC_EVAL_QUALIFIER_OVERRIDE))
|
---|
7024 | return 1;
|
---|
7025 | pCompiler->iEscEol = iSavedEscEol;
|
---|
7026 | }
|
---|
7027 | else if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "private", 7))
|
---|
7028 | {
|
---|
7029 | if (kmk_cc_eval_try_handle_var_with_keywords(pCompiler, pchWord + 7, cchLeft - 7, KMK_CC_EVAL_QUALIFIER_PRIVATE))
|
---|
7030 | return 1;
|
---|
7031 | pCompiler->iEscEol = iSavedEscEol;
|
---|
7032 | }
|
---|
7033 | }
|
---|
7034 |
|
---|
7035 | /*
|
---|
7036 | * Check out the other keywords.
|
---|
7037 | */
|
---|
7038 | if (ch == 'i') /* Lots of directives starting with 'i'. */
|
---|
7039 | {
|
---|
7040 | char ch2 = pchWord[1];
|
---|
7041 | pchWord += 2;
|
---|
7042 | cchLeft -= 2;
|
---|
7043 |
|
---|
7044 | /* 'if...' */
|
---|
7045 | if (ch2 == 'f')
|
---|
7046 | {
|
---|
7047 | if (KMK_CC_EVAL_WORD_COMP_IS_EOL(pCompiler, pchWord, cchLeft))
|
---|
7048 | return kmk_cc_eval_do_if(pCompiler, pchWord, cchLeft, 0 /* in else */);
|
---|
7049 |
|
---|
7050 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "eq", 2))
|
---|
7051 | return kmk_cc_eval_do_ifeq( pCompiler, pchWord + 2, cchLeft - 2, 0 /* in else */, 1 /* positive */);
|
---|
7052 |
|
---|
7053 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "def", 3))
|
---|
7054 | return kmk_cc_eval_do_ifdef(pCompiler, pchWord + 3, cchLeft - 3, 0 /* in else */, 1 /* positive */);
|
---|
7055 |
|
---|
7056 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "neq", 3))
|
---|
7057 | return kmk_cc_eval_do_ifeq( pCompiler, pchWord + 3, cchLeft - 3, 0 /* in else */, 0 /* positive */);
|
---|
7058 |
|
---|
7059 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "1of", 3))
|
---|
7060 | return kmk_cc_eval_do_if1of(pCompiler, pchWord + 3, cchLeft - 3, 0 /* in else */, 1 /* positive */);
|
---|
7061 |
|
---|
7062 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "ndef", 4))
|
---|
7063 | return kmk_cc_eval_do_ifdef(pCompiler, pchWord + 4, cchLeft - 4, 0 /* in else */, 0 /* positive */);
|
---|
7064 |
|
---|
7065 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "n1of", 4))
|
---|
7066 | return kmk_cc_eval_do_if1of(pCompiler, pchWord + 4, cchLeft - 4, 0 /* in else */, 0 /* positive */);
|
---|
7067 | }
|
---|
7068 | /* include... */
|
---|
7069 | else if (ch2 == 'n' && cchLeft >= 5 && KMK_CC_WORD_COMP_CONST_5(pchWord, "clude") ) /* 'in...' */
|
---|
7070 | {
|
---|
7071 | pchWord += 5;
|
---|
7072 | cchLeft -= 5;
|
---|
7073 | if (KMK_CC_EVAL_WORD_COMP_IS_EOL(pCompiler, pchWord, cchLeft))
|
---|
7074 | return kmk_cc_eval_do_include(pCompiler, pchWord, cchLeft, kKmkCcEvalInstr_include);
|
---|
7075 | if (cchLeft >= 3 && KMK_CC_WORD_COMP_CONST_3(pchWord, "dep"))
|
---|
7076 | {
|
---|
7077 | pchWord += 3;
|
---|
7078 | cchLeft -= 3;
|
---|
7079 | if (KMK_CC_EVAL_WORD_COMP_IS_EOL(pCompiler, pchWord, cchLeft))
|
---|
7080 | return kmk_cc_eval_do_include(pCompiler, pchWord, cchLeft, kKmkCcEvalInstr_includedep);
|
---|
7081 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "-queue", 6))
|
---|
7082 | return kmk_cc_eval_do_include(pCompiler, pchWord + 6, cchLeft - 6, kKmkCcEvalInstr_includedep_queue);
|
---|
7083 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "-flush", 6))
|
---|
7084 | return kmk_cc_eval_do_include(pCompiler, pchWord + 6, cchLeft - 6, kKmkCcEvalInstr_includedep_flush);
|
---|
7085 | }
|
---|
7086 | }
|
---|
7087 | }
|
---|
7088 | else if (ch == 'e') /* A few directives starts with 'e'. */
|
---|
7089 | {
|
---|
7090 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "else", 4))
|
---|
7091 | return kmk_cc_eval_do_else(pCompiler, pchWord + 4, cchLeft - 4);
|
---|
7092 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "endif", 5))
|
---|
7093 | return kmk_cc_eval_do_endif(pCompiler, pchWord + 5, cchLeft - 5);
|
---|
7094 | /* export and endef are handled elsewhere, though stray endef's may end up here... */
|
---|
7095 | KMK_CC_ASSERT(!KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "export", 6));
|
---|
7096 |
|
---|
7097 | }
|
---|
7098 | else /* the rest. */
|
---|
7099 | {
|
---|
7100 | if ( KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "sinclude", 8)
|
---|
7101 | || KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "-include", 8))
|
---|
7102 | return kmk_cc_eval_do_include(pCompiler, pchWord + 8, cchLeft - 8, kKmkCcEvalInstr_include_silent);
|
---|
7103 | if (KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "vpath", 5))
|
---|
7104 | return kmk_cc_eval_do_vpath(pCompiler, pchWord + 5, cchLeft - 5);
|
---|
7105 |
|
---|
7106 | KMK_CC_ASSERT(!KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "local", 5));
|
---|
7107 | KMK_CC_ASSERT(!KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "define", 6));
|
---|
7108 | KMK_CC_ASSERT(!KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "private", 7));
|
---|
7109 | KMK_CC_ASSERT(!KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "override", 8));
|
---|
7110 | KMK_CC_ASSERT(!KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "unexport", 8));
|
---|
7111 | KMK_CC_ASSERT(!KMK_CC_EVAL_WORD_COMP_CONST(pCompiler, pchWord, cchLeft, "undefine", 8));
|
---|
7112 | }
|
---|
7113 |
|
---|
7114 | pCompiler->iEscEol = iSavedEscEol;
|
---|
7115 | return 0;
|
---|
7116 | }
|
---|
7117 |
|
---|
7118 |
|
---|
7119 |
|
---|
7120 |
|
---|
7121 | static int kmk_cc_eval_compile_worker(PKMKCCEVALPROG pEvalProg, const char *pszContent, size_t cchContent, unsigned iLine)
|
---|
7122 | {
|
---|
7123 | const char *pchTmp;
|
---|
7124 |
|
---|
7125 | /*
|
---|
7126 | * Compiler state.
|
---|
7127 | */
|
---|
7128 | KMKCCEVALCOMPILER Compiler;
|
---|
7129 | kmk_cc_eval_init_compiler(&Compiler, pEvalProg, iLine, pszContent, cchContent);
|
---|
7130 | KMK_CC_EVAL_DPRINTF(("\nkmk_cc_eval_compile_worker - begin (%s/%s/%d)\n", pEvalProg->pszFilename, pEvalProg->pszVarName, iLine));
|
---|
7131 |
|
---|
7132 | {
|
---|
7133 | /*
|
---|
7134 | * Line state.
|
---|
7135 | */
|
---|
7136 | size_t cchLine; /* The length of the current line (w/o comments). */
|
---|
7137 | size_t offNext = 0; /* The offset of the next line. */
|
---|
7138 | size_t off = 0; /* The offset into pszContent of the current line. */
|
---|
7139 |
|
---|
7140 | /* Try for some register/whatever optimzations. */
|
---|
7141 | int const chFirstEol = Compiler.chFirstEol;
|
---|
7142 | size_t const cchEolSeq = Compiler.cchEolSeq;
|
---|
7143 |
|
---|
7144 | /*
|
---|
7145 | * Process input lines.
|
---|
7146 | *
|
---|
7147 | * The code here concerns itself with getting the next line in an efficient
|
---|
7148 | * manner, very basic classification and trying out corresponding handlers.
|
---|
7149 | * The real work is done in the handlers.
|
---|
7150 | */
|
---|
7151 | while (offNext < cchContent)
|
---|
7152 | {
|
---|
7153 | size_t offFirstWord;
|
---|
7154 |
|
---|
7155 | /*
|
---|
7156 | * Find the end of the next line.
|
---|
7157 | */
|
---|
7158 | KMK_CC_ASSERT(off == offNext);
|
---|
7159 |
|
---|
7160 | /* Simple case: No escaped EOL, nor the end of the input. */
|
---|
7161 | pchTmp = (const char *)memchr(&pszContent[offNext], chFirstEol, cchContent - offNext);
|
---|
7162 | if ( pchTmp
|
---|
7163 | && ( &pszContent[offNext] == pchTmp
|
---|
7164 | || pchTmp[-1] != '\\') )
|
---|
7165 | {
|
---|
7166 | if ( cchEolSeq == 1
|
---|
7167 | || pchTmp[1] == Compiler.chSecondEol)
|
---|
7168 | {
|
---|
7169 | /* Frequent: Blank line. */
|
---|
7170 | if (&pszContent[offNext] == pchTmp)
|
---|
7171 | {
|
---|
7172 | KMK_CC_EVAL_DPRINTF(("#%03u: <empty>\n", Compiler.iLine));
|
---|
7173 | Compiler.iLine++;
|
---|
7174 | off = offNext += cchEolSeq;
|
---|
7175 | continue;
|
---|
7176 | }
|
---|
7177 | if (pszContent[offNext] == '#')
|
---|
7178 | {
|
---|
7179 | KMK_CC_EVAL_DPRINTF(("#%03u: <comment-col-0>\n", Compiler.iLine));
|
---|
7180 | Compiler.iLine++;
|
---|
7181 | offNext = pchTmp - pszContent;
|
---|
7182 | off = offNext += cchEolSeq;
|
---|
7183 | continue;
|
---|
7184 | }
|
---|
7185 |
|
---|
7186 | offNext = pchTmp - pszContent;
|
---|
7187 | cchLine = offNext - off;
|
---|
7188 |
|
---|
7189 | offFirstWord = off;
|
---|
7190 | while (offFirstWord < offNext && KMK_CC_EVAL_IS_SPACE(pszContent[offFirstWord]))
|
---|
7191 | offFirstWord++;
|
---|
7192 |
|
---|
7193 | offNext += cchEolSeq;
|
---|
7194 | Compiler.cEscEols = 0;
|
---|
7195 | Compiler.iEscEol = 0;
|
---|
7196 | }
|
---|
7197 | else
|
---|
7198 | kmk_cc_eval_fatal_eol(&Compiler, pchTmp, Compiler.iLine, off);
|
---|
7199 | }
|
---|
7200 | /* The complicated, less common cases. */
|
---|
7201 | else
|
---|
7202 | {
|
---|
7203 | Compiler.cEscEols = 0;
|
---|
7204 | Compiler.iEscEol = 0;
|
---|
7205 | offFirstWord = offNext;
|
---|
7206 | for (;;)
|
---|
7207 | {
|
---|
7208 | if (pchTmp)
|
---|
7209 | {
|
---|
7210 | if ( cchEolSeq == 1
|
---|
7211 | || pchTmp[1] == Compiler.chSecondEol)
|
---|
7212 | {
|
---|
7213 | size_t offEsc;
|
---|
7214 | if (offFirstWord != offNext)
|
---|
7215 | offNext = pchTmp - pszContent;
|
---|
7216 | else
|
---|
7217 | {
|
---|
7218 | offNext = pchTmp - pszContent;
|
---|
7219 | while (offFirstWord < offNext && KMK_CC_EVAL_IS_SPACE(pszContent[offFirstWord]))
|
---|
7220 | offFirstWord++;
|
---|
7221 | }
|
---|
7222 |
|
---|
7223 |
|
---|
7224 | /* Is it an escape sequence? */
|
---|
7225 | if ( !offNext
|
---|
7226 | || pchTmp[-1] != '\\')
|
---|
7227 | {
|
---|
7228 | cchLine = offNext - off;
|
---|
7229 | offNext += cchEolSeq;
|
---|
7230 | break;
|
---|
7231 | }
|
---|
7232 | if (offNext < 2 || pchTmp[-2] != '\\')
|
---|
7233 | offEsc = offNext - 1;
|
---|
7234 | else
|
---|
7235 | {
|
---|
7236 | /* Count how many backslashes there are. Must be odd number to be an escape
|
---|
7237 | sequence. Normally we keep half of them, except for command lines. */
|
---|
7238 | size_t cSlashes = 2;
|
---|
7239 | while (offNext >= cSlashes && pchTmp[0 - cSlashes] == '\\')
|
---|
7240 | cSlashes--;
|
---|
7241 | if (!(cSlashes & 1))
|
---|
7242 | {
|
---|
7243 | cchLine = offNext - off;
|
---|
7244 | offNext += cchEolSeq;
|
---|
7245 | break;
|
---|
7246 | }
|
---|
7247 | offEsc = offNext - (cSlashes >> 1);
|
---|
7248 | }
|
---|
7249 |
|
---|
7250 | /* Record it. */
|
---|
7251 | if (Compiler.cEscEols < Compiler.cEscEolsAllocated) { /* likely */ }
|
---|
7252 | else
|
---|
7253 | {
|
---|
7254 | KMK_CC_ASSERT(Compiler.cEscEols == Compiler.cEscEolsAllocated);
|
---|
7255 | Compiler.cEscEolsAllocated = Compiler.cEscEolsAllocated
|
---|
7256 | ? Compiler.cEscEolsAllocated * 2 : 2;
|
---|
7257 | Compiler.paEscEols = (PKMKCCEVALESCEOL)xrealloc(Compiler.paEscEols,
|
---|
7258 | Compiler.cEscEolsAllocated
|
---|
7259 | * sizeof(Compiler.paEscEols[0]));
|
---|
7260 | }
|
---|
7261 | Compiler.paEscEols[Compiler.cEscEols].offEsc = offEsc;
|
---|
7262 | Compiler.paEscEols[Compiler.cEscEols].offEol = offNext;
|
---|
7263 | Compiler.cEscEols++;
|
---|
7264 |
|
---|
7265 | /* Advance. */
|
---|
7266 | offNext += cchEolSeq;
|
---|
7267 | if (offFirstWord == offEsc)
|
---|
7268 | {
|
---|
7269 | offFirstWord = offNext;
|
---|
7270 | Compiler.iEscEol++;
|
---|
7271 | }
|
---|
7272 | }
|
---|
7273 | else
|
---|
7274 | kmk_cc_eval_fatal_eol(&Compiler, pchTmp, Compiler.iLine, off);
|
---|
7275 | }
|
---|
7276 | else
|
---|
7277 | {
|
---|
7278 | /* End of input. Happens only once per compilation, nothing to optimize for. */
|
---|
7279 | if (offFirstWord == offNext)
|
---|
7280 | while (offFirstWord < cchContent && KMK_CC_EVAL_IS_SPACE(pszContent[offFirstWord]))
|
---|
7281 | offFirstWord++;
|
---|
7282 | offNext = cchContent;
|
---|
7283 | cchLine = cchContent - off;
|
---|
7284 | break;
|
---|
7285 | }
|
---|
7286 | pchTmp = (const char *)memchr(&pszContent[offNext], chFirstEol, cchContent - offNext);
|
---|
7287 | }
|
---|
7288 | }
|
---|
7289 | KMK_CC_ASSERT(offNext <= cchContent);
|
---|
7290 | KMK_CC_ASSERT(offNext >= off + cchLine);
|
---|
7291 | KMK_CC_ASSERT(off + cchLine <= cchContent && cchLine <= cchContent);
|
---|
7292 | KMK_CC_ASSERT(offFirstWord <= off + cchLine);
|
---|
7293 | KMK_CC_ASSERT(offFirstWord >= off);
|
---|
7294 | KMK_CC_ASSERT(pszContent[offFirstWord] != ' ' && pszContent[offFirstWord] != '\t');
|
---|
7295 |
|
---|
7296 | KMK_CC_EVAL_DPRINTF(("#%03u: %*.*s\n", Compiler.iLine, (int)cchLine, (int)cchLine, &pszContent[off]));
|
---|
7297 |
|
---|
7298 | /*
|
---|
7299 | * Skip blank lines.
|
---|
7300 | */
|
---|
7301 | if (offFirstWord < off + cchLine)
|
---|
7302 | {
|
---|
7303 | /*
|
---|
7304 | * Command? Ignore command prefix if no open recipe (SunOS 4 behavior).
|
---|
7305 | */
|
---|
7306 | if ( pszContent[off] == Compiler.chCmdPrefix
|
---|
7307 | && (Compiler.pRecipe || Compiler.fNoTargetRecipe))
|
---|
7308 | {
|
---|
7309 | if (!Compiler.fNoTargetRecipe)
|
---|
7310 | kmk_cc_eval_handle_command(&Compiler, &pszContent[off], cchLine);
|
---|
7311 | }
|
---|
7312 | /*
|
---|
7313 | * Since it's not a command line, we can now skip comment lines
|
---|
7314 | * even with a tab indentation. If it's not a comment line, we
|
---|
7315 | * tentatively strip any trailing comment.
|
---|
7316 | */
|
---|
7317 | else if (pszContent[offFirstWord] != '#')
|
---|
7318 | {
|
---|
7319 | const char *pchWord = &pszContent[offFirstWord];
|
---|
7320 | size_t cchLeft = off + cchLine - offFirstWord;
|
---|
7321 | char ch;
|
---|
7322 |
|
---|
7323 | Compiler.cchLineWithComments = cchLine;
|
---|
7324 | pchTmp = (const char *)memchr(pchWord, '#', cchLeft);
|
---|
7325 | if (pchTmp)
|
---|
7326 | {
|
---|
7327 | cchLeft = pchTmp - pchWord;
|
---|
7328 | cchLine = pchTmp - &pszContent[off];
|
---|
7329 | }
|
---|
7330 | Compiler.cchLine = cchLine; /** @todo only used by assertions. */
|
---|
7331 | Compiler.offLine = off; /** @todo only used by fatal errors. */
|
---|
7332 |
|
---|
7333 | #ifdef KMK_CC_STRICT
|
---|
7334 | Compiler.cWords = 0x424242;
|
---|
7335 | #endif
|
---|
7336 |
|
---|
7337 | /*
|
---|
7338 | * If not a directive or variable qualifier, it's either a variable
|
---|
7339 | * assignment or a recipe.
|
---|
7340 | */
|
---|
7341 | ch = *pchWord;
|
---|
7342 | if ( !KMK_CC_EVAL_IS_1ST_IN_KEYWORD(ch)
|
---|
7343 | || !KMK_CC_EVAL_IS_2ND_IN_KEYWORD(pchWord[1]))
|
---|
7344 | {
|
---|
7345 | if (memchr(pchWord, '=', cchLeft))
|
---|
7346 | kmk_cc_eval_handle_assignment_or_recipe(&Compiler, pchWord, cchLeft, 0 /*fQualifiers*/);
|
---|
7347 | else
|
---|
7348 | kmk_cc_eval_handle_recipe(&Compiler, pchWord, cchLeft);
|
---|
7349 | }
|
---|
7350 | else
|
---|
7351 | {
|
---|
7352 | /* Possible directive or variable qualifier. */
|
---|
7353 | Compiler.offNext = offNext;
|
---|
7354 | if (kmk_cc_eval_try_handle_keyword(&Compiler, ch, pchWord, cchLeft))
|
---|
7355 | offNext = Compiler.offNext;
|
---|
7356 | /* No, that wasn't it... */
|
---|
7357 | else if (memchr(pchWord, '=', cchLeft))
|
---|
7358 | kmk_cc_eval_handle_assignment_or_recipe(&Compiler, pchWord, cchLeft, 0 /*fQualifiers*/);
|
---|
7359 | else
|
---|
7360 | kmk_cc_eval_handle_recipe(&Compiler, pchTmp, pchWord, cchLeft);
|
---|
7361 | }
|
---|
7362 | }
|
---|
7363 | }
|
---|
7364 |
|
---|
7365 | /*
|
---|
7366 | * Advance to the next line.
|
---|
7367 | */
|
---|
7368 | off = offNext;
|
---|
7369 | Compiler.iLine += Compiler.cEscEols + 1;
|
---|
7370 | }
|
---|
7371 | }
|
---|
7372 |
|
---|
7373 | /*
|
---|
7374 | * Check whether
|
---|
7375 | */
|
---|
7376 |
|
---|
7377 | kmk_cc_eval_delete_compiler(&Compiler);
|
---|
7378 | KMK_CC_EVAL_DPRINTF(("kmk_cc_eval_compile_worker - done (%s/%s)\n\n", pEvalProg->pszFilename, pEvalProg->pszVarName));
|
---|
7379 | return 0;
|
---|
7380 | }
|
---|
7381 |
|
---|
7382 |
|
---|
7383 |
|
---|
7384 | static PKMKCCEVALPROG kmk_cc_eval_compile(const char *pszContent, size_t cchContent,
|
---|
7385 | const char *pszFilename, unsigned iLine, const char *pszVarName)
|
---|
7386 | {
|
---|
7387 | /*
|
---|
7388 | * Estimate block size, allocate one and initialize it.
|
---|
7389 | */
|
---|
7390 | PKMKCCEVALPROG pEvalProg;
|
---|
7391 | PKMKCCBLOCK pBlock;
|
---|
7392 | pEvalProg = kmk_cc_block_alloc_first(&pBlock, sizeof(*pEvalProg), cchContent / 32); /** @todo adjust */
|
---|
7393 | if (pEvalProg)
|
---|
7394 | {
|
---|
7395 | pEvalProg->pBlockTail = pBlock;
|
---|
7396 | pEvalProg->pFirstInstr = (PKMKCCEVALCORE)kmk_cc_block_get_next_ptr(pBlock);
|
---|
7397 | pEvalProg->pszFilename = pszFilename ? pszFilename : "<unknown>";
|
---|
7398 | pEvalProg->pszVarName = pszVarName;
|
---|
7399 | pEvalProg->cRefs = 1;
|
---|
7400 | #ifdef KMK_CC_STRICT
|
---|
7401 | pEvalProg->uInputHash = kmk_cc_debug_string_hash_n(0, pszContent, cchContent);
|
---|
7402 | #endif
|
---|
7403 |
|
---|
7404 | /*
|
---|
7405 | * Do the actual compiling.
|
---|
7406 | */
|
---|
7407 | #ifdef CONFIG_WITH_EVAL_COMPILER
|
---|
7408 | if (kmk_cc_eval_compile_worker(pEvalProg, pszContent, cchContent, iLine) == 0)
|
---|
7409 | #else
|
---|
7410 | if (0)
|
---|
7411 | #endif
|
---|
7412 | {
|
---|
7413 | #ifdef KMK_CC_WITH_STATS
|
---|
7414 | pBlock = pEvalProg->pBlockTail;
|
---|
7415 | if (!pBlock->pNext)
|
---|
7416 | g_cSingleBlockEvalProgs++;
|
---|
7417 | else if (!pBlock->pNext->pNext)
|
---|
7418 | g_cTwoBlockEvalProgs++;
|
---|
7419 | else
|
---|
7420 | g_cMultiBlockEvalProgs++;
|
---|
7421 | for (; pBlock; pBlock = pBlock->pNext)
|
---|
7422 | {
|
---|
7423 | g_cBlocksAllocatedEvalProgs++;
|
---|
7424 | g_cbAllocatedEvalProgs += pBlock->cbBlock;
|
---|
7425 | g_cbUnusedMemEvalProgs += pBlock->cbBlock - pBlock->offNext;
|
---|
7426 | }
|
---|
7427 | #endif
|
---|
7428 | return pEvalProg;
|
---|
7429 | }
|
---|
7430 | kmk_cc_block_free_list(pEvalProg->pBlockTail);
|
---|
7431 | }
|
---|
7432 | return NULL;
|
---|
7433 | }
|
---|
7434 |
|
---|
7435 |
|
---|
7436 | /**
|
---|
7437 | * Compiles a variable direct evaluation as is, setting v->evalprog on success.
|
---|
7438 | *
|
---|
7439 | * @returns Pointer to the program on success, NULL if no program was created.
|
---|
7440 | * @param pVar Pointer to the variable.
|
---|
7441 | */
|
---|
7442 | struct kmk_cc_evalprog *kmk_cc_compile_variable_for_eval(struct variable *pVar)
|
---|
7443 | {
|
---|
7444 | PKMKCCEVALPROG pEvalProg = pVar->evalprog;
|
---|
7445 | if (!pEvalProg)
|
---|
7446 | {
|
---|
7447 | #ifdef CONFIG_WITH_EVAL_COMPILER
|
---|
7448 | pEvalProg = kmk_cc_eval_compile(pVar->value, pVar->value_length,
|
---|
7449 | pVar->fileinfo.filenm, pVar->fileinfo.lineno, pVar->name);
|
---|
7450 | pVar->evalprog = pEvalProg;
|
---|
7451 | #endif
|
---|
7452 | g_cVarForEvalCompilations++;
|
---|
7453 | }
|
---|
7454 | return pEvalProg;
|
---|
7455 | }
|
---|
7456 |
|
---|
7457 |
|
---|
7458 | /**
|
---|
7459 | * Compiles a makefile for
|
---|
7460 | *
|
---|
7461 | * @returns Pointer to the program on success, NULL if no program was created.
|
---|
7462 | * @param pVar Pointer to the variable.
|
---|
7463 | */
|
---|
7464 | struct kmk_cc_evalprog *kmk_cc_compile_file_for_eval(FILE *pFile, const char *pszFilename)
|
---|
7465 | {
|
---|
7466 | PKMKCCEVALPROG pEvalProg;
|
---|
7467 |
|
---|
7468 | /*
|
---|
7469 | * Read the entire file into a zero terminate memory buffer.
|
---|
7470 | */
|
---|
7471 | size_t cchContent = 0;
|
---|
7472 | char *pszContent = NULL;
|
---|
7473 | struct stat st;
|
---|
7474 | if (!fstat(fileno(pFile), &st))
|
---|
7475 | {
|
---|
7476 | if ( st.st_size > (off_t)KMK_CC_EVAL_MAX_COMPILE_SIZE
|
---|
7477 | && st.st_size < 0)
|
---|
7478 | fatal(NULL, _("Makefile too large to compile: %ld bytes (%#lx) - max %uMB"),
|
---|
7479 | (long)st.st_size, (long)st.st_size, KMK_CC_EVAL_MAX_COMPILE_SIZE / 1024 / 1024);
|
---|
7480 | cchContent = (size_t)st.st_size;
|
---|
7481 | pszContent = (char *)xmalloc(cchContent + 1);
|
---|
7482 |
|
---|
7483 | cchContent = fread(pszContent, 1, cchContent, pFile);
|
---|
7484 | if (ferror(pFile))
|
---|
7485 | fatal(NULL, _("Read error: %s"), strerror(errno));
|
---|
7486 | }
|
---|
7487 | else
|
---|
7488 | {
|
---|
7489 | size_t cbAllocated = 2048;
|
---|
7490 | do
|
---|
7491 | {
|
---|
7492 | cbAllocated *= 2;
|
---|
7493 | if (cbAllocated > KMK_CC_EVAL_MAX_COMPILE_SIZE)
|
---|
7494 | fatal(NULL, _("Makefile too large to compile: max %uMB"), KMK_CC_EVAL_MAX_COMPILE_SIZE / 1024 / 1024);
|
---|
7495 | pszContent = (char *)xrealloc(pszContent, cbAllocated);
|
---|
7496 | cchContent += fread(&pszContent[cchContent], 1, cbAllocated - 1 - cchContent, pFile);
|
---|
7497 | if (ferror(pFile))
|
---|
7498 | fatal(NULL, _("Read error: %s"), strerror(errno));
|
---|
7499 | } while (!feof(pFile));
|
---|
7500 | }
|
---|
7501 | pszContent[cchContent] = '\0';
|
---|
7502 |
|
---|
7503 | /*
|
---|
7504 | * Call common function to do the compilation.
|
---|
7505 | */
|
---|
7506 | pEvalProg = kmk_cc_eval_compile(pszContent, cchContent, pszFilename, 1, NULL /*pszVarName*/);
|
---|
7507 | g_cFileForEvalCompilations++;
|
---|
7508 |
|
---|
7509 | free(pszContent);
|
---|
7510 | if (!pEvalProg)
|
---|
7511 | fseek(pFile, 0, SEEK_SET);
|
---|
7512 | return pEvalProg;
|
---|
7513 | }
|
---|
7514 |
|
---|
7515 |
|
---|
7516 | /**
|
---|
7517 | * Equivalent of eval_buffer, only it's using the evalprog of the variable.
|
---|
7518 | *
|
---|
7519 | * @param pVar Pointer to the variable. Must have a program.
|
---|
7520 | */
|
---|
7521 | void kmk_exec_eval_variable(struct variable *pVar)
|
---|
7522 | {
|
---|
7523 | KMK_CC_ASSERT(pVar->evalprog);
|
---|
7524 | assert(0);
|
---|
7525 | }
|
---|
7526 |
|
---|
7527 |
|
---|
7528 | /**
|
---|
7529 | * Worker for eval_makefile.
|
---|
7530 | *
|
---|
7531 | * @param pEvalProg The program pointer.
|
---|
7532 | */
|
---|
7533 | void kmk_exec_eval_file(struct kmk_cc_evalprog *pEvalProg)
|
---|
7534 | {
|
---|
7535 | KMK_CC_ASSERT(pEvalProg);
|
---|
7536 | assert(0);
|
---|
7537 |
|
---|
7538 | }
|
---|
7539 |
|
---|
7540 |
|
---|
7541 |
|
---|
7542 | /*
|
---|
7543 | *
|
---|
7544 | * Program destruction hooks.
|
---|
7545 | * Program destruction hooks.
|
---|
7546 | * Program destruction hooks.
|
---|
7547 | *
|
---|
7548 | */
|
---|
7549 |
|
---|
7550 |
|
---|
7551 | /**
|
---|
7552 | * Called when a variable with expandprog or/and evalprog changes.
|
---|
7553 | *
|
---|
7554 | * @param pVar Pointer to the variable.
|
---|
7555 | */
|
---|
7556 | void kmk_cc_variable_changed(struct variable *pVar)
|
---|
7557 | {
|
---|
7558 | PKMKCCEXPPROG pProg = pVar->expandprog;
|
---|
7559 |
|
---|
7560 | KMK_CC_ASSERT(pVar->evalprog || pProg);
|
---|
7561 |
|
---|
7562 | if (pVar->evalprog)
|
---|
7563 | {
|
---|
7564 | kmk_cc_block_free_list(pVar->evalprog->pBlockTail);
|
---|
7565 | pVar->evalprog = NULL;
|
---|
7566 | }
|
---|
7567 |
|
---|
7568 | if (pProg)
|
---|
7569 | {
|
---|
7570 | if (pProg->cRefs == 1)
|
---|
7571 | kmk_cc_block_free_list(pProg->pBlockTail);
|
---|
7572 | else
|
---|
7573 | fatal(NULL, _("Modifying a variable (%s) while its expansion program is running is not supported"), pVar->name);
|
---|
7574 | pVar->expandprog = NULL;
|
---|
7575 | }
|
---|
7576 | }
|
---|
7577 |
|
---|
7578 |
|
---|
7579 | /**
|
---|
7580 | * Called when a variable with expandprog or/and evalprog is deleted.
|
---|
7581 | *
|
---|
7582 | * @param pVar Pointer to the variable.
|
---|
7583 | */
|
---|
7584 | void kmk_cc_variable_deleted(struct variable *pVar)
|
---|
7585 | {
|
---|
7586 | PKMKCCEXPPROG pProg = pVar->expandprog;
|
---|
7587 |
|
---|
7588 | KMK_CC_ASSERT(pVar->evalprog || pProg);
|
---|
7589 |
|
---|
7590 | if (pVar->evalprog)
|
---|
7591 | {
|
---|
7592 | kmk_cc_block_free_list(pVar->evalprog->pBlockTail);
|
---|
7593 | pVar->evalprog = NULL;
|
---|
7594 | }
|
---|
7595 |
|
---|
7596 | if (pProg)
|
---|
7597 | {
|
---|
7598 | if (pProg->cRefs == 1)
|
---|
7599 | kmk_cc_block_free_list(pProg->pBlockTail);
|
---|
7600 | else
|
---|
7601 | fatal(NULL, _("Deleting a variable (%s) while its expansion program is running is not supported"), pVar->name);
|
---|
7602 | pVar->expandprog = NULL;
|
---|
7603 | }
|
---|
7604 | }
|
---|
7605 |
|
---|
7606 |
|
---|
7607 |
|
---|
7608 |
|
---|
7609 |
|
---|
7610 |
|
---|
7611 |
|
---|
7612 | #endif /* CONFIG_WITH_COMPILER */
|
---|
7613 |
|
---|