1 | /* $Id: kbuild-object.c 2720 2014-01-01 22:59:50Z bird $ */
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2 | /** @file
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3 | * kBuild objects.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (c) 2011-2014 knut st. osmundsen <[email protected]>
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8 | *
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9 | * This file is part of kBuild.
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10 | *
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11 | * kBuild is free software; you can redistribute it and/or modify
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12 | * it under the terms of the GNU General Public License as published by
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13 | * the Free Software Foundation; either version 3 of the License, or
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14 | * (at your option) any later version.
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15 | *
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16 | * kBuild is distributed in the hope that it will be useful,
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17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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19 | * GNU General Public License for more details.
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20 | *
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21 | * You should have received a copy of the GNU General Public License
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22 | * along with kBuild. If not, see <http://www.gnu.org/licenses/>
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23 | *
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24 | */
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25 |
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26 | /* No GNU coding style here! */
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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 "make.h"
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32 | #include "filedef.h"
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33 | #include "variable.h"
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34 | #include "dep.h"
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35 | #include "debug.h"
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36 | #include "kbuild.h"
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37 |
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38 | #include <assert.h>
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39 | #include <stdarg.h>
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40 |
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41 |
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42 | /*******************************************************************************
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43 | * Defined Constants And Macros *
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44 | *******************************************************************************/
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45 | #define WORD_IS(a_pszWord, a_cchWord, a_szWord2) \
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46 | ( (a_cchWord) == sizeof(a_szWord2) - 1 && memcmp((a_pszWord), a_szWord2, sizeof(a_szWord2) - 1) == 0)
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47 |
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48 |
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49 | /*******************************************************************************
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50 | * Structures and Typedefs *
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51 | *******************************************************************************/
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52 | /** kBuild object type. */
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53 | enum kBuildType
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54 | {
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55 | kBuildType_Invalid,
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56 | kBuildType_Target,
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57 | kBuildType_Template,
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58 | kBuildType_Tool,
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59 | kBuildType_Sdk,
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60 | kBuildType_Unit
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61 | };
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62 |
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63 | enum kBuildSeverity
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64 | {
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65 | kBuildSeverity_Warning,
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66 | kBuildSeverity_Error,
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67 | kBuildSeverity_Fatal
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68 | };
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69 |
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70 |
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71 | /**
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72 | * kBuild object data.
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73 | */
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74 | struct kbuild_object
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75 | {
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76 | /** The object type. */
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77 | enum kBuildType enmType;
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78 | /** Object name length. */
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79 | size_t cchName;
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80 | /** The bare name of the define. */
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81 | char *pszName;
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82 | /** The file location where this define was declared. */
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83 | struct floc FileLoc;
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84 |
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85 | /** Pointer to the next element in the global list. */
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86 | struct kbuild_object *pGlobalNext;
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87 |
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88 | /** The variable set associated with this define. */
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89 | struct variable_set_list *pVariables;
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90 |
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91 | /** The parent name, NULL if none. */
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92 | char *pszParent;
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93 | /** The length of the parent name. */
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94 | size_t cchParent;
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95 | /** Pointer to the parent. Resolved lazily, so it can be NULL even if we
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96 | * have a parent. */
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97 | struct kbuild_object *pParent;
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98 |
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99 | /** The template, NULL if none. Only applicable to targets. Only covers the
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100 | * primary template, not target or type specific templates.
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101 | * @todo not sure if this is really necessary. */
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102 | char const *pszTemplate;
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103 |
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104 | /** The variable prefix. */
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105 | char *pszVarPrefix;
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106 | /** The length of the variable prefix. */
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107 | size_t cchVarPrefix;
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108 | };
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109 |
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110 |
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111 | /**
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112 | * The data we stack during eval.
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113 | */
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114 | struct kbuild_eval_data
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115 | {
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116 | /** Pointer to the element below us on the stack. */
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117 | struct kbuild_eval_data *pStackDown;
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118 | /** Pointer to the object. */
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119 | struct kbuild_object *pObj;
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120 | /** The saved current variable set, for restoring in kBuild-endef. */
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121 | struct variable_set_list *pVariablesSaved;
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122 | };
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123 |
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124 |
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125 |
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126 | /*******************************************************************************
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127 | * Global Variables *
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128 | *******************************************************************************/
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129 | /** Linked list (LIFO) of kBuild defines.
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130 | * @todo use a hash! */
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131 | static struct kbuild_object *g_pHeadKbObjs = NULL;
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132 | /** Stack of kBuild evalutation contexts.
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133 | * This is for dealing with potential recursive kBuild object definition,
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134 | * generally believed to only happen via $(eval ) or include similar. */
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135 | struct kbuild_eval_data *g_pTopKbEvalData = NULL;
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136 |
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137 | /** Cached variable name '_TEMPLATE'. */
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138 | static const char *g_pszVarNmTemplate = NULL;
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139 |
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140 | /** Zero if compatibility mode is disabled, non-zero if enabled.
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141 | * If explicitily enabled, the value will be greater than 1. */
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142 | int g_fKbObjCompMode = 1;
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143 |
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144 |
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145 | /*******************************************************************************
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146 | * Internal Functions *
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147 | *******************************************************************************/
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148 | static struct kbuild_object *
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149 | resolve_kbuild_object_parent(struct kbuild_object *pObj, int fQuiet);
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150 | static struct kbuild_object *
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151 | get_kbuild_object_parent(struct kbuild_object *pObj, enum kBuildSeverity enmSeverity);
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152 |
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153 | static struct kbuild_object *
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154 | parse_kbuild_object_variable_accessor(const char *pchExpr, size_t cchExpr,
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155 | enum kBuildSeverity enmSeverity, const struct floc *pFileLoc,
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156 | const char **ppchVarNm, size_t *pcchVarNm, enum kBuildType *penmType);
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157 |
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158 |
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159 | /**
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160 | * Initializes the kBuild object stuff.
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161 | *
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162 | * Requires the variable_cache to be initialized.
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163 | */
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164 | void init_kbuild_object(void)
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165 | {
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166 | g_pszVarNmTemplate = strcache2_add(&variable_strcache, STRING_SIZE_TUPLE("_TEMPLATE"));
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167 | }
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168 |
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169 |
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170 | /**
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171 | * Reports a problem with dynamic severity level.
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172 | *
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173 | * @param enmSeverity The severity level.
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174 | * @param pFileLoc The file location.
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175 | * @param pszFormat The format string.
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176 | * @param ... Arguments for the format string.
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177 | */
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178 | static void kbuild_report_problem(enum kBuildSeverity enmSeverity, const struct floc *pFileLoc,
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179 | const char *pszFormat, ...)
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180 | {
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181 | char szBuf[8192];
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182 | va_list va;
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183 |
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184 | va_start(va, pszFormat);
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185 | #ifdef _MSC_VER
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186 | _vsnprintf(szBuf, sizeof(szBuf), pszFormat, va);
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187 | #else
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188 | vsnprintf(szBuf, sizeof(szBuf), pszFormat, va);
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189 | #endif
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190 | va_end(va);
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191 |
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192 | switch (enmSeverity)
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193 | {
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194 | case kBuildSeverity_Warning:
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195 | message(0, "%s", szBuf);
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196 | break;
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197 | case kBuildSeverity_Error:
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198 | error(pFileLoc, "%s", szBuf);
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199 | break;
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200 | default:
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201 | case kBuildSeverity_Fatal:
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202 | fatal(pFileLoc, "%s", szBuf);
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203 | break;
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204 | }
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205 | }
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206 |
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207 |
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208 | static const char *
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209 | eval_kbuild_type_to_string(enum kBuildType enmType)
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210 | {
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211 | switch (enmType)
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212 | {
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213 | case kBuildType_Target: return "target";
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214 | case kBuildType_Template: return "template";
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215 | case kBuildType_Tool: return "tool";
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216 | case kBuildType_Sdk: return "sdk";
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217 | case kBuildType_Unit: return "unit";
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218 | default:
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219 | case kBuildType_Invalid: return "invalid";
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220 | }
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221 | }
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222 |
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223 | /**
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224 | * Gets the length of the string representation of the given type.
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225 | *
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226 | * @returns The string length.
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227 | * @param enmType The kBuild object type in question.
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228 | */
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229 | static unsigned
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230 | eval_kbuild_type_to_string_length(enum kBuildType enmType)
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231 | {
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232 | switch (enmType)
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233 | {
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234 | case kBuildType_Target: return sizeof("target") - 1;
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235 | case kBuildType_Template: return sizeof("template") - 1;
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236 | case kBuildType_Tool: return sizeof("tool") - 1;
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237 | case kBuildType_Sdk: return sizeof("sdk") - 1;
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238 | case kBuildType_Unit: return sizeof("unit") - 1;
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239 | default:
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240 | case kBuildType_Invalid: return sizeof("invalid") - 1;
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241 | }
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242 | }
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243 |
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244 | /**
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245 | * Converts a string into an kBuild object type.
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246 | *
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247 | * @returns The type on success, kBuildType_Invalid on failure.
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248 | * @param pchWord The pchWord. Not necessarily zero terminated.
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249 | * @param cchWord The length of the word.
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250 | */
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251 | static enum kBuildType
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252 | eval_kbuild_type_from_string(const char *pchWord, size_t cchWord)
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253 | {
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254 | if (cchWord >= 3)
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255 | {
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256 | if (*pchWord == 't')
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257 | {
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258 | if (WORD_IS(pchWord, cchWord, "target"))
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259 | return kBuildType_Target;
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260 | if (WORD_IS(pchWord, cchWord, "template"))
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261 | return kBuildType_Template;
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262 | if (WORD_IS(pchWord, cchWord, "tool"))
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263 | return kBuildType_Tool;
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264 | }
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265 | else
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266 | {
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267 | if (WORD_IS(pchWord, cchWord, "sdk"))
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268 | return kBuildType_Sdk;
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269 | if (WORD_IS(pchWord, cchWord, "unit"))
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270 | return kBuildType_Unit;
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271 | }
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272 | }
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273 |
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274 | return kBuildType_Invalid;
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275 | }
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276 |
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277 |
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278 |
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279 | /**
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280 | * Helper function for caching variable name strings.
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281 | *
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282 | * @returns The string cache variable name.
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283 | * @param pszName The variable name.
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284 | * @param ppszCache Cache variable, static or global. Initialize to
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285 | * NULL.
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286 | */
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287 | static const char *
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288 | kbuild_variable_name(const char *pszName, const char **ppszCache)
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289 | {
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290 | const char *pszRet = *ppszCache;
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291 | if (!pszRet)
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292 | *ppszCache = pszRet = strcache2_add(&variable_strcache, pszName, strlen(pszName));
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293 | return pszRet;
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294 | }
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295 |
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296 | static struct kbuild_object *
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297 | lookup_kbuild_object(enum kBuildType enmType, const char *pchName, size_t cchName)
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298 | {
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299 | /* Linear lookup for now. */
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300 | struct kbuild_object *pCur = g_pHeadKbObjs;
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301 | while (pCur)
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302 | {
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303 | if ( pCur->enmType == enmType
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304 | && pCur->cchName == cchName
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305 | && !memcmp(pCur->pszName, pchName, cchName))
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306 | return pCur;
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307 | pCur = pCur->pGlobalNext;
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308 | }
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309 | return NULL;
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310 | }
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311 |
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312 |
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313 | /** @name Defining and modifying variables
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314 | * @{
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315 | */
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316 |
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317 | /**
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318 | * Checks if the variable name is valid.
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319 | *
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320 | * @returns 1 if valid, 0 if not.
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321 | * @param pchName The variable name.
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322 | * @param cchName The length of the variable name.
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323 | */
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324 | static int
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325 | is_valid_kbuild_object_variable_name(const char *pchName, size_t cchName)
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326 | {
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327 | if (cchName > 0)
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328 | {
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329 | if (!memchr(pchName, '[', cchName))
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330 | {
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331 | /** @todo more? */
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332 | return 1;
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333 | }
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334 | }
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335 | return 0;
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336 | }
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337 |
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338 | static const char *
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339 | kbuild_replace_special_accessors(const char *pchValue, size_t *pcchValue, int *pfDuplicateValue,
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340 | const struct floc *pFileLoc)
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341 | {
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342 | size_t cchValue = *pcchValue;
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343 | size_t cbAllocated = *pfDuplicateValue ? 0 : cchValue + 1;
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344 |
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345 | /*
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346 | * Loop thru each potential special accessor occurance in the string.
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347 | *
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348 | * Unfortunately, we don't have a strnstr function in the C library, so
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349 | * we'll using memchr and doing a few more rounds in this loop.
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350 | */
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351 | size_t cchLeft = cchValue;
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352 | char *pchLeft = (char *)pchValue;
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353 | for (;;)
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354 | {
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355 | int fSuper;
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356 | char *pch = (char *)memchr(pchLeft, '$', cchLeft);
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357 | if (!pch)
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358 | break;
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359 |
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360 | pch++;
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361 | cchLeft -= pch - pchLeft;
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362 | pchLeft = pch;
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363 |
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364 | /* [@self] is the shorter, quit if there isn't enough room for even it. */
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365 | if (cchLeft < sizeof("([@self]") - 1)
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366 | break;
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367 |
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368 | /* We don't care how many dollars there are in front of a special accessor. */
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369 | if (*pchLeft == '$')
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370 | {
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371 | do
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372 | {
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373 | cchLeft--;
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374 | pchLeft++;
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375 | } while (cchLeft >= sizeof("([@self]") - 1 && *pchLeft == '$');
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376 | if (cchLeft < sizeof("([@self]") - 1)
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377 | break;
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378 | }
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379 |
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380 | /* Is it a special accessor? */
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381 | if ( pchLeft[2] != '@'
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382 | || pchLeft[1] != '['
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383 | || pchLeft[0] != '(')
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384 | continue;
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385 | pchLeft += 2;
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386 | cchLeft -= 2;
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387 | if (!memcmp(pchLeft, STRING_SIZE_TUPLE("@self]")))
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388 | fSuper = 0;
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389 | else if ( cchLeft >= sizeof("@super]")
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390 | && !memcmp(pchLeft, STRING_SIZE_TUPLE("@super]")))
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391 | fSuper = 1;
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392 | else
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393 | continue;
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394 |
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395 | /*
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396 | * We've got something to replace. First figure what with and then
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397 | * resize the value buffer.
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398 | */
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399 | if (g_pTopKbEvalData)
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400 | {
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401 | struct kbuild_object *pObj = g_pTopKbEvalData->pObj;
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402 | size_t const cchSpecial = fSuper ? sizeof("@super") - 1 : sizeof("@self") - 1;
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403 | size_t cchName;
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404 | size_t cchType;
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405 | long cchDelta;
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406 | const char *pszName;
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407 |
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408 | if (fSuper)
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409 | {
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410 | pObj = get_kbuild_object_parent(pObj, kBuildSeverity_Error);
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411 | if (!pObj)
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412 | continue;
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413 | }
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414 | pszName = pObj->pszName;
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415 | cchName = pObj->cchName;
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416 | cchType = eval_kbuild_type_to_string_length(pObj->enmType);
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417 | cchDelta = cchType + 1 + cchName - cchSpecial;
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418 |
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419 | if (cchValue + cchDelta >= cbAllocated)
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420 | {
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421 | size_t offLeft = pchLeft - pchValue;
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422 | char *pszNewValue;
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423 |
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424 | cbAllocated = cchValue + cchDelta + 1;
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425 | if (cchValue < 1024)
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426 | cbAllocated = (cbAllocated + 31) & ~(size_t)31;
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427 | else
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428 | cbAllocated = (cbAllocated + 255) & ~(size_t)255;
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429 | pszNewValue = (char *)xmalloc(cbAllocated);
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430 |
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431 | memcpy(pszNewValue, pchValue, offLeft);
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432 | memcpy(pszNewValue + offLeft + cchSpecial + cchDelta,
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433 | pchLeft + cchSpecial,
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434 | cchLeft - cchSpecial + 1);
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435 |
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436 | if (*pfDuplicateValue == 0)
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437 | free((char *)pchValue);
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438 | else
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439 | *pfDuplicateValue = 0;
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440 |
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441 | pchValue = pszNewValue;
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442 | pchLeft = pszNewValue + offLeft;
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443 | }
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444 | else
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445 | {
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446 | assert(*pfDuplicateValue == 0);
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447 | memmove(pchLeft + cchSpecial + cchDelta,
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448 | pchLeft + cchSpecial,
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449 | cchLeft - cchSpecial + 1);
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450 | }
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451 |
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452 | cchLeft += cchDelta;
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453 | cchValue += cchDelta;
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454 | *pcchValue = cchValue;
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455 |
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456 | memcpy(pchLeft, eval_kbuild_type_to_string(pObj->enmType), cchType);
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457 | pchLeft += cchType;
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458 | *pchLeft++ = '@';
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459 | memcpy(pchLeft, pszName, cchName);
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460 | pchLeft += cchName;
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461 | cchLeft -= cchType + 1 + cchName;
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462 | }
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463 | else
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464 | error(pFileLoc, _("The '$([%.*s...' accessor can only be used in the context of a kBuild object"),
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465 | MAX(cchLeft, 20), pchLeft);
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466 | }
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467 |
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468 | return pchValue;
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469 | }
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470 |
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471 | static struct variable *
|
---|
472 | define_kbuild_object_variable_cached(struct kbuild_object *pObj, const char *pszName,
|
---|
473 | const char *pchValue, size_t cchValue,
|
---|
474 | int fDuplicateValue, enum variable_origin enmOrigin,
|
---|
475 | int fRecursive, int fNoSpecialAccessors, const struct floc *pFileLoc)
|
---|
476 | {
|
---|
477 | struct variable *pVar;
|
---|
478 | size_t cchName = strcache2_get_len(&variable_strcache, pszName);
|
---|
479 |
|
---|
480 | if (fRecursive && !fNoSpecialAccessors)
|
---|
481 | pchValue = kbuild_replace_special_accessors(pchValue, &cchValue, &fDuplicateValue, pFileLoc);
|
---|
482 |
|
---|
483 | pVar = define_variable_in_set(pszName, cchName,
|
---|
484 | pchValue, cchValue, fDuplicateValue,
|
---|
485 | enmOrigin, fRecursive,
|
---|
486 | pObj->pVariables->set,
|
---|
487 | pFileLoc);
|
---|
488 |
|
---|
489 | /* Single underscore prefixed variables gets a global alias. */
|
---|
490 | if ( pszName[0] == '_'
|
---|
491 | && pszName[1] != '_'
|
---|
492 | && g_fKbObjCompMode)
|
---|
493 | {
|
---|
494 | struct variable *pAlias;
|
---|
495 | size_t cchPrefixed = pObj->cchVarPrefix + cchName;
|
---|
496 | char *pszPrefixed = xmalloc(cchPrefixed + 1);
|
---|
497 | memcpy(pszPrefixed, pObj->pszVarPrefix, pObj->cchVarPrefix);
|
---|
498 | memcpy(&pszPrefixed[pObj->cchVarPrefix], pszName, cchName);
|
---|
499 | pszPrefixed[cchPrefixed] = '\0';
|
---|
500 |
|
---|
501 | pAlias = define_variable_alias_in_set(pszPrefixed, cchPrefixed, pVar, enmOrigin,
|
---|
502 | &global_variable_set, pFileLoc);
|
---|
503 | if (!pAlias->alias)
|
---|
504 | error(pFileLoc, _("Error defining alias '%s'"), pszPrefixed);
|
---|
505 | }
|
---|
506 |
|
---|
507 | return pVar;
|
---|
508 | }
|
---|
509 |
|
---|
510 | #if 0
|
---|
511 | struct variable *
|
---|
512 | define_kbuild_object_variable(struct kbuild_object *pObj, const char *pchName, size_t cchName,
|
---|
513 | const char *pchValue, size_t cchValue,
|
---|
514 | int fDuplicateValue, enum variable_origin enmOrigin,
|
---|
515 | int fRecursive, const struct floc *pFileLoc)
|
---|
516 | {
|
---|
517 | return define_kbuild_object_variable_cached(pObj, strcache2_add(&variable_strcache, pchName, cchName),
|
---|
518 | pchValue, cchValue,
|
---|
519 | fDuplicateValue, enmOrigin,
|
---|
520 | fRecursive, pFileLoc);
|
---|
521 | }
|
---|
522 | #endif
|
---|
523 |
|
---|
524 | /**
|
---|
525 | * Try define a kBuild object variable via a possible accessor
|
---|
526 | * ([type@object]var).
|
---|
527 | *
|
---|
528 | * @returns Pointer to the defined variable on success.
|
---|
529 | * @retval VAR_NOT_KBUILD_ACCESSOR if it isn't an accessor.
|
---|
530 | *
|
---|
531 | * @param pchName The variable name, not cached.
|
---|
532 | * @param cchName The variable name length. This will not be ~0U.
|
---|
533 | * @param pszValue The variable value. If @a fDuplicateValue is clear,
|
---|
534 | * this should be assigned as the actual variable
|
---|
535 | * value, otherwise it will be duplicated. In the
|
---|
536 | * latter case it might not be properly null
|
---|
537 | * terminated.
|
---|
538 | * @param cchValue The value length.
|
---|
539 | * @param fDuplicateValue Whether @a pszValue need to be duplicated on the
|
---|
540 | * heap or is already there.
|
---|
541 | * @param enmOrigin The variable origin.
|
---|
542 | * @param fRecursive Whether it's a recursive variable.
|
---|
543 | * @param pFileLoc The location of the variable definition.
|
---|
544 | */
|
---|
545 | struct variable *
|
---|
546 | try_define_kbuild_object_variable_via_accessor(const char *pchName, size_t cchName,
|
---|
547 | const char *pszValue, size_t cchValue, int fDuplicateValue,
|
---|
548 | enum variable_origin enmOrigin, int fRecursive,
|
---|
549 | struct floc const *pFileLoc)
|
---|
550 | {
|
---|
551 | struct kbuild_object *pObj;
|
---|
552 | const char *pchVarNm;
|
---|
553 | size_t cchVarNm;
|
---|
554 |
|
---|
555 | pObj = parse_kbuild_object_variable_accessor(pchName, cchName, kBuildSeverity_Fatal, pFileLoc,
|
---|
556 | &pchVarNm, &cchVarNm, NULL);
|
---|
557 | if (pObj != KOBJ_NOT_KBUILD_ACCESSOR)
|
---|
558 | {
|
---|
559 | assert(pObj != NULL);
|
---|
560 | if (!is_valid_kbuild_object_variable_name(pchVarNm, cchVarNm))
|
---|
561 | fatal(pFileLoc, _("Invalid kBuild object variable name: '%.*s' ('%s')"),
|
---|
562 | (int)cchVarNm, pchVarNm, (int)cchName, pchName);
|
---|
563 | return define_kbuild_object_variable_cached(pObj, strcache2_add(&variable_strcache, pchVarNm, cchVarNm),
|
---|
564 | pszValue, cchValue, fDuplicateValue, enmOrigin, fRecursive,
|
---|
565 | 0 /*fNoSpecialAccessors*/, pFileLoc);
|
---|
566 | }
|
---|
567 |
|
---|
568 | return VAR_NOT_KBUILD_ACCESSOR;
|
---|
569 | }
|
---|
570 |
|
---|
571 | /**
|
---|
572 | * Define a kBuild object variable in the topmost kBuild object.
|
---|
573 | *
|
---|
574 | * This won't be an variable accessor.
|
---|
575 | *
|
---|
576 | * @returns Pointer to the defined variable on success.
|
---|
577 | *
|
---|
578 | * @param pchName The variable name, not cached.
|
---|
579 | * @param cchName The variable name length. This will not be ~0U.
|
---|
580 | * @param pszValue The variable value. If @a fDuplicateValue is clear,
|
---|
581 | * this should be assigned as the actual variable
|
---|
582 | * value, otherwise it will be duplicated. In the
|
---|
583 | * latter case it might not be properly null
|
---|
584 | * terminated.
|
---|
585 | * @param cchValue The value length.
|
---|
586 | * @param fDuplicateValue Whether @a pszValue need to be duplicated on the
|
---|
587 | * heap or is already there.
|
---|
588 | * @param enmOrigin The variable origin.
|
---|
589 | * @param fRecursive Whether it's a recursive variable.
|
---|
590 | * @param pFileLoc The location of the variable definition.
|
---|
591 | */
|
---|
592 | struct variable *
|
---|
593 | define_kbuild_object_variable_in_top_obj(const char *pchName, size_t cchName,
|
---|
594 | const char *pszValue, size_t cchValue, int fDuplicateValue,
|
---|
595 | enum variable_origin enmOrigin, int fRecursive,
|
---|
596 | struct floc const *pFileLoc)
|
---|
597 | {
|
---|
598 | assert(g_pTopKbEvalData != NULL);
|
---|
599 |
|
---|
600 | if (!is_valid_kbuild_object_variable_name(pchName, cchName))
|
---|
601 | fatal(pFileLoc, _("Invalid kBuild object variable name: '%.*s'"), (int)cchName, pchName);
|
---|
602 |
|
---|
603 | return define_kbuild_object_variable_cached(g_pTopKbEvalData->pObj, strcache2_add(&variable_strcache, pchName, cchName),
|
---|
604 | pszValue, cchValue, fDuplicateValue, enmOrigin, fRecursive,
|
---|
605 | 0 /*fNoSpecialAccessors*/, pFileLoc);
|
---|
606 | }
|
---|
607 |
|
---|
608 | /**
|
---|
609 | * Implements appending and prepending to a kBuild object variable.
|
---|
610 | *
|
---|
611 | * The variable is either accessed thru an accessor or by the topmost kBuild
|
---|
612 | * object.
|
---|
613 | *
|
---|
614 | * @returns Pointer to the defined variable on success.
|
---|
615 | *
|
---|
616 | * @param pchName The variable name, not cached.
|
---|
617 | * @param cchName The variable name length. This will not be ~0U.
|
---|
618 | * @param pszValue The variable value. Must be duplicated.
|
---|
619 | * @param cchValue The value length.
|
---|
620 | * @param fSimpleValue Whether we've already figured that it's a simple
|
---|
621 | * value. This is for optimizing appending/prepending
|
---|
622 | * to an existing simple value variable.
|
---|
623 | * @param enmOrigin The variable origin.
|
---|
624 | * @param fAppend Append if set, prepend if clear.
|
---|
625 | * @param pFileLoc The location of the variable definition.
|
---|
626 | */
|
---|
627 | struct variable *
|
---|
628 | kbuild_object_variable_pre_append(const char *pchName, size_t cchName,
|
---|
629 | const char *pchValue, size_t cchValue, int fSimpleValue,
|
---|
630 | enum variable_origin enmOrigin, int fAppend,
|
---|
631 | const struct floc *pFileLoc)
|
---|
632 | {
|
---|
633 | struct kbuild_object *pObj;
|
---|
634 | struct variable VarKey;
|
---|
635 |
|
---|
636 | /*
|
---|
637 | * Resolve the relevant kBuild object first.
|
---|
638 | */
|
---|
639 | if (cchName > 3 && pchName[0] == '[')
|
---|
640 | {
|
---|
641 | const char *pchVarNm;
|
---|
642 | size_t cchVarNm;
|
---|
643 | pObj = parse_kbuild_object_variable_accessor(pchName, cchName, kBuildSeverity_Fatal, pFileLoc,
|
---|
644 | &pchVarNm, &cchVarNm, NULL);
|
---|
645 | if (pObj != KOBJ_NOT_KBUILD_ACCESSOR)
|
---|
646 | {
|
---|
647 | pchName = pchVarNm;
|
---|
648 | cchName = cchVarNm;
|
---|
649 | }
|
---|
650 | else
|
---|
651 | pObj = g_pTopKbEvalData->pObj;
|
---|
652 | }
|
---|
653 | else
|
---|
654 | pObj = g_pTopKbEvalData->pObj;
|
---|
655 |
|
---|
656 | /*
|
---|
657 | * Make sure the variable name is valid. Raise fatal error if not.
|
---|
658 | */
|
---|
659 | if (!is_valid_kbuild_object_variable_name(pchName, cchName))
|
---|
660 | fatal(pFileLoc, _("Invalid kBuild object variable name: '%.*s'"), (int)cchName, pchName);
|
---|
661 |
|
---|
662 | /*
|
---|
663 | * Get the cached name and look it up in the object's variables.
|
---|
664 | */
|
---|
665 | VarKey.name = strcache2_lookup(&variable_strcache, pchName, cchName);
|
---|
666 | if (VarKey.name)
|
---|
667 | {
|
---|
668 | struct variable *pVar;
|
---|
669 |
|
---|
670 | VarKey.length = cchName;
|
---|
671 | pVar = (struct variable *)hash_find_item_strcached(&pObj->pVariables->set->table, &VarKey);
|
---|
672 | if (pVar)
|
---|
673 | {
|
---|
674 | /* Append/prepend to existing variable. */
|
---|
675 | int fDuplicateValue = 1;
|
---|
676 | if (pVar->recursive && !fSimpleValue)
|
---|
677 | pchValue = kbuild_replace_special_accessors(pchValue, &cchValue, &fDuplicateValue, pFileLoc);
|
---|
678 |
|
---|
679 | pVar = do_variable_definition_append(pFileLoc, pVar, pchValue, cchValue, fSimpleValue, enmOrigin, fAppend);
|
---|
680 |
|
---|
681 | if (fDuplicateValue == 0)
|
---|
682 | free((char *)pchValue);
|
---|
683 | return pVar;
|
---|
684 | }
|
---|
685 |
|
---|
686 | /*
|
---|
687 | * Not found. Check ancestors if the 'override' directive isn't applied.
|
---|
688 | */
|
---|
689 | if (pObj->pszParent && enmOrigin != o_override)
|
---|
690 | {
|
---|
691 | struct kbuild_object *pParent = pObj;
|
---|
692 | for (;;)
|
---|
693 | {
|
---|
694 | pParent = resolve_kbuild_object_parent(pParent, 0 /*fQuiet*/);
|
---|
695 | if (!pParent)
|
---|
696 | break;
|
---|
697 |
|
---|
698 | pVar = (struct variable *)hash_find_item_strcached(&pParent->pVariables->set->table, &VarKey);
|
---|
699 | if (pVar)
|
---|
700 | {
|
---|
701 | if (pVar->value_length != ~0U)
|
---|
702 | assert(pVar->value_length == strlen(pVar->value));
|
---|
703 | else
|
---|
704 | pVar->value_length = strlen(pVar->value);
|
---|
705 |
|
---|
706 | /*
|
---|
707 | * Combine the two values and define the variable in the
|
---|
708 | * specified child object. We must disregard 'origin' a
|
---|
709 | * little here, so we must do the gritty stuff our selves.
|
---|
710 | */
|
---|
711 | if ( pVar->recursive
|
---|
712 | || fSimpleValue
|
---|
713 | || !cchValue
|
---|
714 | || memchr(pchValue, '$', cchValue) == NULL )
|
---|
715 | {
|
---|
716 | int fDuplicateValue = 1;
|
---|
717 | size_t cchNewValue;
|
---|
718 | char *pszNewValue;
|
---|
719 | char *pszTmp;
|
---|
720 |
|
---|
721 | /* Just join up the two values. */
|
---|
722 | if (pVar->recursive && !fSimpleValue)
|
---|
723 | pchValue = kbuild_replace_special_accessors(pchValue, &cchValue, &fDuplicateValue, pFileLoc);
|
---|
724 | if (pVar->value_length == 0)
|
---|
725 | {
|
---|
726 | cchNewValue = cchValue;
|
---|
727 | pszNewValue = xstrndup(pchValue, cchValue);
|
---|
728 | }
|
---|
729 | else if (!cchValue)
|
---|
730 | {
|
---|
731 | cchNewValue = pVar->value_length;
|
---|
732 | pszNewValue = xmalloc(cchNewValue + 1);
|
---|
733 | memcpy(pszNewValue, pVar->value, cchNewValue + 1);
|
---|
734 | }
|
---|
735 | else
|
---|
736 | {
|
---|
737 | cchNewValue = pVar->value_length + 1 + cchValue;
|
---|
738 | pszNewValue = xmalloc(cchNewValue + 1);
|
---|
739 | if (fAppend)
|
---|
740 | {
|
---|
741 | memcpy(pszNewValue, pVar->value, pVar->value_length);
|
---|
742 | pszTmp = pszNewValue + pVar->value_length;
|
---|
743 | *pszTmp++ = ' ';
|
---|
744 | memcpy(pszTmp, pchValue, cchValue);
|
---|
745 | pszTmp[cchValue] = '\0';
|
---|
746 | }
|
---|
747 | else
|
---|
748 | {
|
---|
749 | memcpy(pszNewValue, pchValue, cchValue);
|
---|
750 | pszTmp = pszNewValue + cchValue;
|
---|
751 | *pszTmp++ = ' ';
|
---|
752 | memcpy(pszNewValue, pVar->value, pVar->value_length);
|
---|
753 | pszTmp[pVar->value_length] = '\0';
|
---|
754 | }
|
---|
755 | }
|
---|
756 |
|
---|
757 | /* Define the new variable in the child. */
|
---|
758 | pVar = define_kbuild_object_variable_cached(pObj, VarKey.name,
|
---|
759 | pszNewValue, cchNewValue, 0 /*fDuplicateValue*/,
|
---|
760 | enmOrigin, pVar->recursive, 1 /*fNoSpecialAccessors*/,
|
---|
761 | pFileLoc);
|
---|
762 | if (fDuplicateValue == 0)
|
---|
763 | free((char *)pchValue);
|
---|
764 | }
|
---|
765 | else
|
---|
766 | {
|
---|
767 | /* Lazy bird: Copy the variable from the ancestor and
|
---|
768 | then do a normal append/prepend on it. */
|
---|
769 | pVar = define_kbuild_object_variable_cached(pObj, VarKey.name,
|
---|
770 | pVar->value, pVar->value_length, 1 /*fDuplicateValue*/,
|
---|
771 | enmOrigin, pVar->recursive, 1 /*fNoSpecialAccessors*/,
|
---|
772 | pFileLoc);
|
---|
773 | append_expanded_string_to_variable(pVar, pchValue, cchValue, fAppend);
|
---|
774 | }
|
---|
775 | return pVar;
|
---|
776 | }
|
---|
777 | }
|
---|
778 | }
|
---|
779 | }
|
---|
780 | else
|
---|
781 | VarKey.name = strcache2_add(&variable_strcache, pchName, cchName);
|
---|
782 |
|
---|
783 | /* Variable not found. */
|
---|
784 | return define_kbuild_object_variable_cached(pObj, VarKey.name,
|
---|
785 | pchValue, cchValue, 1 /*fDuplicateValue*/, enmOrigin,
|
---|
786 | 1 /*fRecursive */, 0 /*fNoSpecialAccessors*/, pFileLoc);
|
---|
787 | }
|
---|
788 |
|
---|
789 | /** @} */
|
---|
790 |
|
---|
791 |
|
---|
792 | static char *
|
---|
793 | allocate_expanded_next_token(const char **ppszCursor, const char *pszEos, size_t *pcchToken, int fStrip)
|
---|
794 | {
|
---|
795 | unsigned int cchToken;
|
---|
796 | char *pszToken = find_next_token_eos(ppszCursor, pszEos, &cchToken);
|
---|
797 | if (pszToken)
|
---|
798 | {
|
---|
799 | pszToken = allocated_variable_expand_2(pszToken, cchToken, &cchToken);
|
---|
800 | if (pszToken)
|
---|
801 | {
|
---|
802 | if (fStrip)
|
---|
803 | {
|
---|
804 | unsigned int off = 0;
|
---|
805 | while (MY_IS_BLANK(pszToken[off]))
|
---|
806 | off++;
|
---|
807 | if (off)
|
---|
808 | {
|
---|
809 | cchToken -= off;
|
---|
810 | memmove(pszToken, &pszToken[off], cchToken + 1);
|
---|
811 | }
|
---|
812 |
|
---|
813 | while (cchToken > 0 && MY_IS_BLANK(pszToken[cchToken - 1]))
|
---|
814 | pszToken[--cchToken] = '\0';
|
---|
815 | }
|
---|
816 |
|
---|
817 | assert(cchToken == strlen(pszToken));
|
---|
818 | if (pcchToken)
|
---|
819 | *pcchToken = cchToken;
|
---|
820 | return pszToken;
|
---|
821 | }
|
---|
822 | }
|
---|
823 |
|
---|
824 | if (pcchToken)
|
---|
825 | *pcchToken = 0;
|
---|
826 | return NULL;
|
---|
827 | }
|
---|
828 |
|
---|
829 | static struct kbuild_object *
|
---|
830 | resolve_kbuild_object_parent(struct kbuild_object *pObj, int fQuiet)
|
---|
831 | {
|
---|
832 | if ( !pObj->pParent
|
---|
833 | && pObj->pszParent)
|
---|
834 | {
|
---|
835 | struct kbuild_object *pCur = g_pHeadKbObjs;
|
---|
836 | while (pCur)
|
---|
837 | {
|
---|
838 | if ( pCur->enmType == pObj->enmType
|
---|
839 | && !strcmp(pCur->pszName, pObj->pszParent))
|
---|
840 | {
|
---|
841 | if ( pCur->pszParent
|
---|
842 | && ( pCur->pParent == pObj
|
---|
843 | || !strcmp(pCur->pszParent, pObj->pszName)) )
|
---|
844 | fatal(&pObj->FileLoc, _("'%s' and '%s' are both trying to be each other children..."),
|
---|
845 | pObj->pszName, pCur->pszName);
|
---|
846 |
|
---|
847 | pObj->pParent = pCur;
|
---|
848 | pObj->pVariables->next = pObj->pVariables;
|
---|
849 | return pCur;
|
---|
850 | }
|
---|
851 |
|
---|
852 | pCur = pCur->pGlobalNext;
|
---|
853 | }
|
---|
854 |
|
---|
855 | /* Not found. */
|
---|
856 | if (!fQuiet)
|
---|
857 | error(&pObj->FileLoc, _("Could not locate parent '%s' of '%s'"), pObj->pszParent, pObj->pszName);
|
---|
858 | }
|
---|
859 | return pObj->pParent;
|
---|
860 | }
|
---|
861 |
|
---|
862 | /**
|
---|
863 | * Get the parent of the given object, it is expected to have one.
|
---|
864 | *
|
---|
865 | * @returns Pointer to the parent. NULL if we survive failure.
|
---|
866 | * @param pObj The kBuild object.
|
---|
867 | * @param enmSeverity The severity of a missing parent.
|
---|
868 | */
|
---|
869 | static struct kbuild_object *
|
---|
870 | get_kbuild_object_parent(struct kbuild_object *pObj, enum kBuildSeverity enmSeverity)
|
---|
871 | {
|
---|
872 | struct kbuild_object *pParent = pObj->pParent;
|
---|
873 | if (pParent)
|
---|
874 | return pParent;
|
---|
875 |
|
---|
876 | pParent = resolve_kbuild_object_parent(pObj, 1 /*fQuiet - complain below */);
|
---|
877 | if (pParent)
|
---|
878 | return pParent;
|
---|
879 |
|
---|
880 | if (pObj->pszParent)
|
---|
881 | kbuild_report_problem(enmSeverity, &pObj->FileLoc,
|
---|
882 | _("Could not local parent '%s' for kBuild object '%s'"),
|
---|
883 | pObj->pszParent, pObj->pszName);
|
---|
884 | else
|
---|
885 | kbuild_report_problem(enmSeverity, &pObj->FileLoc,
|
---|
886 | _("kBuild object '%s' has no parent ([@super])"),
|
---|
887 | pObj->pszName);
|
---|
888 | return NULL;
|
---|
889 | }
|
---|
890 |
|
---|
891 | static int
|
---|
892 | eval_kbuild_define_xxxx(struct kbuild_eval_data **ppData, const struct floc *pFileLoc,
|
---|
893 | const char *pszLine, const char *pszEos, int fIgnoring, enum kBuildType enmType)
|
---|
894 | {
|
---|
895 | unsigned int cch;
|
---|
896 | char ch;
|
---|
897 | char *psz;
|
---|
898 | const char *pszPrefix;
|
---|
899 | struct kbuild_object *pObj;
|
---|
900 | struct kbuild_eval_data *pData;
|
---|
901 |
|
---|
902 | if (fIgnoring)
|
---|
903 | return 0;
|
---|
904 |
|
---|
905 | /*
|
---|
906 | * Create a new kBuild object.
|
---|
907 | */
|
---|
908 | pObj = xmalloc(sizeof(*pObj));
|
---|
909 | pObj->enmType = enmType;
|
---|
910 | pObj->pszName = NULL;
|
---|
911 | pObj->cchName = 0;
|
---|
912 | pObj->FileLoc = *pFileLoc;
|
---|
913 |
|
---|
914 | pObj->pGlobalNext = g_pHeadKbObjs;
|
---|
915 | g_pHeadKbObjs = pObj;
|
---|
916 |
|
---|
917 | pObj->pVariables = create_new_variable_set();
|
---|
918 |
|
---|
919 | pObj->pszParent = NULL;
|
---|
920 | pObj->cchParent = 0;
|
---|
921 | pObj->pParent = NULL;
|
---|
922 |
|
---|
923 | pObj->pszTemplate = NULL;
|
---|
924 |
|
---|
925 | pObj->pszVarPrefix = NULL;
|
---|
926 | pObj->cchVarPrefix = 0;
|
---|
927 |
|
---|
928 | /*
|
---|
929 | * The first word is the name.
|
---|
930 | */
|
---|
931 | pObj->pszName = allocate_expanded_next_token(&pszLine, pszEos, &pObj->cchName, 1 /*strip*/);
|
---|
932 | if (!pObj->pszName || !*pObj->pszName)
|
---|
933 | fatal(pFileLoc, _("The kBuild define requires a name"));
|
---|
934 |
|
---|
935 | psz = pObj->pszName;
|
---|
936 | while ((ch = *psz++) != '\0')
|
---|
937 | if (!isgraph(ch))
|
---|
938 | {
|
---|
939 | error(pFileLoc, _("The 'kBuild-define-%s' name '%s' contains one or more invalid characters"),
|
---|
940 | eval_kbuild_type_to_string(enmType), pObj->pszName);
|
---|
941 | break;
|
---|
942 | }
|
---|
943 |
|
---|
944 | /*
|
---|
945 | * Calc the variable prefix.
|
---|
946 | */
|
---|
947 | switch (enmType)
|
---|
948 | {
|
---|
949 | case kBuildType_Target: pszPrefix = ""; break;
|
---|
950 | case kBuildType_Template: pszPrefix = "TEMPLATE_"; break;
|
---|
951 | case kBuildType_Tool: pszPrefix = "TOOL_"; break;
|
---|
952 | case kBuildType_Sdk: pszPrefix = "SDK_"; break;
|
---|
953 | case kBuildType_Unit: pszPrefix = "UNIT_"; break;
|
---|
954 | default:
|
---|
955 | fatal(pFileLoc, _("enmType=%d"), enmType);
|
---|
956 | return -1;
|
---|
957 | }
|
---|
958 | cch = strlen(pszPrefix);
|
---|
959 | pObj->cchVarPrefix = cch + pObj->cchName;
|
---|
960 | pObj->pszVarPrefix = xmalloc(pObj->cchVarPrefix + 1);
|
---|
961 | memcpy(pObj->pszVarPrefix, pszPrefix, cch);
|
---|
962 | memcpy(&pObj->pszVarPrefix[cch], pObj->pszName, pObj->cchName);
|
---|
963 |
|
---|
964 | /*
|
---|
965 | * Parse subsequent words.
|
---|
966 | */
|
---|
967 | psz = find_next_token_eos(&pszLine, pszEos, &cch);
|
---|
968 | while (psz)
|
---|
969 | {
|
---|
970 | if (WORD_IS(psz, cch, "extending"))
|
---|
971 | {
|
---|
972 | /* Inheritance directive. */
|
---|
973 | if (pObj->pszParent != NULL)
|
---|
974 | fatal(pFileLoc, _("'extending' can only occure once"));
|
---|
975 | pObj->pszParent = allocate_expanded_next_token(&pszLine, pszEos, &pObj->cchParent, 1 /*strip*/);
|
---|
976 | if (!pObj->pszParent || !*pObj->pszParent)
|
---|
977 | fatal(pFileLoc, _("'extending' requires a parent name"));
|
---|
978 | }
|
---|
979 | else if (WORD_IS(psz, cch, "using"))
|
---|
980 | {
|
---|
981 | char *pszTemplate;
|
---|
982 | size_t cchTemplate;
|
---|
983 |
|
---|
984 | /* Template directive. */
|
---|
985 | if (enmType != kBuildType_Target)
|
---|
986 | fatal(pFileLoc, _("'using <template>' can only be used with 'kBuild-define-target'"));
|
---|
987 | if (pObj->pszTemplate != NULL)
|
---|
988 | fatal(pFileLoc, _("'using' can only occure once"));
|
---|
989 |
|
---|
990 | pszTemplate = allocate_expanded_next_token(&pszLine, pszEos, &cchTemplate, 1 /*fStrip*/);
|
---|
991 | if (!pszTemplate || !*pszTemplate)
|
---|
992 | fatal(pFileLoc, _("'using' requires a template name"));
|
---|
993 |
|
---|
994 | define_kbuild_object_variable_cached(pObj, g_pszVarNmTemplate, pszTemplate, cchTemplate,
|
---|
995 | 0 /*fDuplicateValue*/, o_default, 0 /*fRecursive*/,
|
---|
996 | 1 /*fNoSpecialAccessors*/, pFileLoc);
|
---|
997 |
|
---|
998 | }
|
---|
999 | else
|
---|
1000 | fatal(pFileLoc, _("Don't know what '%.*s' means"), (int)cch, psz);
|
---|
1001 |
|
---|
1002 | /* next token */
|
---|
1003 | psz = find_next_token_eos(&pszLine, pszEos, &cch);
|
---|
1004 | }
|
---|
1005 |
|
---|
1006 | /*
|
---|
1007 | * Try resolve the parent.
|
---|
1008 | */
|
---|
1009 | resolve_kbuild_object_parent(pObj, 1 /*fQuiet*/);
|
---|
1010 |
|
---|
1011 | /*
|
---|
1012 | * Create an eval stack entry and change the current variable set.
|
---|
1013 | */
|
---|
1014 | pData = xmalloc(sizeof(*pData));
|
---|
1015 | pData->pObj = pObj;
|
---|
1016 | pData->pVariablesSaved = current_variable_set_list;
|
---|
1017 | current_variable_set_list = pObj->pVariables;
|
---|
1018 |
|
---|
1019 | pData->pStackDown = *ppData;
|
---|
1020 | *ppData = pData;
|
---|
1021 | g_pTopKbEvalData = pData;
|
---|
1022 |
|
---|
1023 | return 0;
|
---|
1024 | }
|
---|
1025 |
|
---|
1026 | static int
|
---|
1027 | eval_kbuild_endef_xxxx(struct kbuild_eval_data **ppData, const struct floc *pFileLoc,
|
---|
1028 | const char *pszLine, const char *pszEos, int fIgnoring, enum kBuildType enmType)
|
---|
1029 | {
|
---|
1030 | struct kbuild_eval_data *pData;
|
---|
1031 | struct kbuild_object *pObj;
|
---|
1032 | size_t cchName;
|
---|
1033 | char *pszName;
|
---|
1034 |
|
---|
1035 | if (fIgnoring)
|
---|
1036 | return 0;
|
---|
1037 |
|
---|
1038 | /*
|
---|
1039 | * Is there something to pop?
|
---|
1040 | */
|
---|
1041 | pData = *ppData;
|
---|
1042 | if (!pData)
|
---|
1043 | {
|
---|
1044 | error(pFileLoc, _("kBuild-endef-%s is missing kBuild-define-%s"),
|
---|
1045 | eval_kbuild_type_to_string(enmType), eval_kbuild_type_to_string(enmType));
|
---|
1046 | return 0;
|
---|
1047 | }
|
---|
1048 |
|
---|
1049 | /*
|
---|
1050 | * ... and does it have a matching kind?
|
---|
1051 | */
|
---|
1052 | pObj = pData->pObj;
|
---|
1053 | if (pObj->enmType != enmType)
|
---|
1054 | error(pFileLoc, _("'kBuild-endef-%s' does not match 'kBuild-define-%s %s'"),
|
---|
1055 | eval_kbuild_type_to_string(enmType), eval_kbuild_type_to_string(pObj->enmType), pObj->pszName);
|
---|
1056 |
|
---|
1057 | /*
|
---|
1058 | * The endef-kbuild may optionally be followed by the target name.
|
---|
1059 | * It should match the name given to the kBuild-define.
|
---|
1060 | */
|
---|
1061 | pszName = allocate_expanded_next_token(&pszLine, pszEos, &cchName, 1 /*fStrip*/);
|
---|
1062 | if (pszName)
|
---|
1063 | {
|
---|
1064 | if ( cchName != pObj->cchName
|
---|
1065 | || strcmp(pszName, pObj->pszName))
|
---|
1066 | error(pFileLoc, _("'kBuild-endef-%s %s' does not match 'kBuild-define-%s %s'"),
|
---|
1067 | eval_kbuild_type_to_string(enmType), pszName,
|
---|
1068 | eval_kbuild_type_to_string(pObj->enmType), pObj->pszName);
|
---|
1069 | free(pszName);
|
---|
1070 | }
|
---|
1071 |
|
---|
1072 | /*
|
---|
1073 | * Pop a define off the stack.
|
---|
1074 | */
|
---|
1075 | assert(pData == g_pTopKbEvalData);
|
---|
1076 | *ppData = g_pTopKbEvalData = pData->pStackDown;
|
---|
1077 | pData->pStackDown = NULL;
|
---|
1078 | current_variable_set_list = pData->pVariablesSaved;
|
---|
1079 | pData->pVariablesSaved = NULL;
|
---|
1080 | free(pData);
|
---|
1081 |
|
---|
1082 | return 0;
|
---|
1083 | }
|
---|
1084 |
|
---|
1085 | int eval_kbuild_read_hook(struct kbuild_eval_data **kdata, const struct floc *flocp,
|
---|
1086 | const char *pchWord, size_t cchWord, const char *line, const char *eos, int ignoring)
|
---|
1087 | {
|
---|
1088 | enum kBuildType enmType;
|
---|
1089 |
|
---|
1090 | /*
|
---|
1091 | * Skip the 'kBuild-' prefix that the caller already matched.
|
---|
1092 | */
|
---|
1093 | assert(memcmp(pchWord, "kBuild-", sizeof("kBuild-") - 1) == 0);
|
---|
1094 | pchWord += sizeof("kBuild-") - 1;
|
---|
1095 | cchWord -= sizeof("kBuild-") - 1;
|
---|
1096 |
|
---|
1097 | /*
|
---|
1098 | * String switch.
|
---|
1099 | */
|
---|
1100 | if ( cchWord >= sizeof("define-") - 1
|
---|
1101 | && strneq(pchWord, "define-", sizeof("define-") - 1))
|
---|
1102 | {
|
---|
1103 | enmType = eval_kbuild_type_from_string(pchWord + sizeof("define-") - 1, cchWord - sizeof("define-") + 1);
|
---|
1104 | if (enmType != kBuildType_Invalid)
|
---|
1105 | return eval_kbuild_define_xxxx(kdata, flocp, line, eos, ignoring, enmType);
|
---|
1106 | }
|
---|
1107 | else if ( cchWord >= sizeof("endef-") - 1
|
---|
1108 | && strneq(pchWord, "endef-", sizeof("endef-") - 1))
|
---|
1109 | {
|
---|
1110 | enmType = eval_kbuild_type_from_string(pchWord + sizeof("endif-") - 1, cchWord - sizeof("endif-") + 1);
|
---|
1111 | if (enmType != kBuildType_Invalid)
|
---|
1112 | return eval_kbuild_endef_xxxx(kdata, flocp, line, eos, ignoring, enmType);
|
---|
1113 | }
|
---|
1114 | else if (WORD_IS(pchWord, cchWord, "endef"))
|
---|
1115 | {
|
---|
1116 | /* Terminate whatever definition is on top. */
|
---|
1117 |
|
---|
1118 | }
|
---|
1119 |
|
---|
1120 | /*
|
---|
1121 | * Everything that is prefixed with 'kBuild-' is reserved for language
|
---|
1122 | * extensions, at least until legacy assignments/whatever turns up.
|
---|
1123 | */
|
---|
1124 | error(flocp, _("Unknown syntax 'kBuild-%.*s'"), (int)cchWord, pchWord);
|
---|
1125 | return 0;
|
---|
1126 | }
|
---|
1127 |
|
---|
1128 |
|
---|
1129 | /** @name kBuild object variable accessor related functions
|
---|
1130 | * @{
|
---|
1131 | */
|
---|
1132 |
|
---|
1133 | /**
|
---|
1134 | * Checks if the given name is an object variable accessor.
|
---|
1135 | *
|
---|
1136 | * @returns 1 if it is, 0 if it isn't.
|
---|
1137 | * @param pchName The potential kBuild variable accessor
|
---|
1138 | * expression.
|
---|
1139 | * @param cchName Length of the expression.
|
---|
1140 | */
|
---|
1141 | int is_kbuild_object_variable_accessor(const char *pchName, size_t cchName)
|
---|
1142 | {
|
---|
1143 | char const *pchTmp;
|
---|
1144 |
|
---|
1145 | /* See lookup_kbuild_object_variable for the rules. */
|
---|
1146 | if (cchName >= 1+1+1+1 && *pchName == '[')
|
---|
1147 | {
|
---|
1148 | pchName++;
|
---|
1149 | cchName--;
|
---|
1150 |
|
---|
1151 | pchTmp = memchr(pchName, '@', cchName);
|
---|
1152 | if (pchTmp)
|
---|
1153 | {
|
---|
1154 | cchName -= pchTmp + 1 - pchName;
|
---|
1155 | pchName = pchTmp + 1;
|
---|
1156 | pchTmp = memchr(pchName, ']', cchName);
|
---|
1157 | if (pchTmp)
|
---|
1158 | {
|
---|
1159 | cchName -= pchTmp + 1 - pchName;
|
---|
1160 | if (cchName > 0)
|
---|
1161 | return 1;
|
---|
1162 | }
|
---|
1163 | }
|
---|
1164 | }
|
---|
1165 | return 0;
|
---|
1166 | }
|
---|
1167 |
|
---|
1168 | /**
|
---|
1169 | * Parses a kBuild object variable accessor, resolving the object.
|
---|
1170 | *
|
---|
1171 | * @returns Pointer to the variable if found.
|
---|
1172 | * @retval NULL if the object (or type) couldn't be resolved.
|
---|
1173 | * @retval KOBJ_NOT_KBUILD_ACCESSOR if no a kBuild variable accessor.
|
---|
1174 | *
|
---|
1175 | * @param pchExpr The kBuild variable accessor expression.
|
---|
1176 | * @param cchExpr Length of the expression.
|
---|
1177 | * @param enmSeverity The minimum severity level for errors.
|
---|
1178 | * @param pFileLoc The file location any errors should be reported
|
---|
1179 | * at. Optional.
|
---|
1180 | * @param ppchVarNm Where to return the pointer to the start of the
|
---|
1181 | * variable name within the string @a pchExpr
|
---|
1182 | * points to. Mandatory.
|
---|
1183 | * @param pcchVarNm Where to return the length of the variable name.
|
---|
1184 | * Mandatory.
|
---|
1185 | * @param penmType Where to return the object type. Optional.
|
---|
1186 | */
|
---|
1187 | static struct kbuild_object *
|
---|
1188 | parse_kbuild_object_variable_accessor(const char *pchExpr, size_t cchExpr,
|
---|
1189 | enum kBuildSeverity enmSeverity, const struct floc *pFileLoc,
|
---|
1190 | const char **ppchVarNm, size_t *pcchVarNm, enum kBuildType *penmType)
|
---|
1191 | {
|
---|
1192 | const char * const pchOrgExpr = pchExpr;
|
---|
1193 | size_t const cchOrgExpr = cchExpr;
|
---|
1194 | char const *pchTmp;
|
---|
1195 |
|
---|
1196 | /*
|
---|
1197 | * To accept this as an kBuild accessor, we require:
|
---|
1198 | * 1. Open bracket.
|
---|
1199 | * 2. At sign separating the type from the name.
|
---|
1200 | * 3. Closing bracket.
|
---|
1201 | * 4. At least one character following it.
|
---|
1202 | */
|
---|
1203 | if (cchExpr >= 1+1+1+1 && *pchExpr == '[')
|
---|
1204 | {
|
---|
1205 | pchExpr++;
|
---|
1206 | cchExpr--;
|
---|
1207 |
|
---|
1208 | pchTmp = memchr(pchExpr, '@', cchExpr);
|
---|
1209 | if (pchTmp)
|
---|
1210 | {
|
---|
1211 | const char * const pchType = pchExpr;
|
---|
1212 | size_t const cchType = pchTmp - pchExpr;
|
---|
1213 |
|
---|
1214 | cchExpr -= cchType + 1;
|
---|
1215 | pchExpr = pchTmp + 1;
|
---|
1216 | pchTmp = memchr(pchExpr, ']', cchExpr);
|
---|
1217 | if (pchTmp)
|
---|
1218 | {
|
---|
1219 | const char * const pchObjName = pchExpr;
|
---|
1220 | size_t const cchObjName = pchTmp - pchExpr;
|
---|
1221 |
|
---|
1222 | cchExpr -= cchObjName + 1;
|
---|
1223 | pchExpr = pchTmp + 1;
|
---|
1224 | if (cchExpr > 0)
|
---|
1225 | {
|
---|
1226 |
|
---|
1227 | /*
|
---|
1228 | * It's an kBuild define variable accessor, alright.
|
---|
1229 | */
|
---|
1230 | *pcchVarNm = cchExpr;
|
---|
1231 | *ppchVarNm = pchExpr;
|
---|
1232 |
|
---|
1233 | /* Deal with known special accessors: [@self]VAR, [@super]VAR. */
|
---|
1234 | if (cchType == 0)
|
---|
1235 | {
|
---|
1236 | int fSuper;
|
---|
1237 |
|
---|
1238 | if (WORD_IS(pchObjName, cchObjName, "self"))
|
---|
1239 | fSuper = 0;
|
---|
1240 | else if (WORD_IS(pchObjName, cchObjName, "super"))
|
---|
1241 | fSuper = 1;
|
---|
1242 | else
|
---|
1243 | {
|
---|
1244 | kbuild_report_problem(MAX(enmSeverity, kBuildSeverity_Error), pFileLoc,
|
---|
1245 | _("Invalid special kBuild object accessor: '%.*s'"),
|
---|
1246 | (int)cchOrgExpr, pchOrgExpr);
|
---|
1247 | if (penmType)
|
---|
1248 | *penmType = kBuildType_Invalid;
|
---|
1249 | return NULL;
|
---|
1250 | }
|
---|
1251 | if (g_pTopKbEvalData)
|
---|
1252 | {
|
---|
1253 | struct kbuild_object *pObj = g_pTopKbEvalData->pObj;
|
---|
1254 | struct kbuild_object *pParent;
|
---|
1255 |
|
---|
1256 | if (penmType)
|
---|
1257 | *penmType = pObj->enmType;
|
---|
1258 |
|
---|
1259 | if (!fSuper)
|
---|
1260 | return pObj;
|
---|
1261 |
|
---|
1262 | pParent = get_kbuild_object_parent(pObj, MAX(enmSeverity, kBuildSeverity_Error));
|
---|
1263 | if (pParent)
|
---|
1264 | return pParent;
|
---|
1265 | }
|
---|
1266 | else
|
---|
1267 | kbuild_report_problem(MAX(enmSeverity, kBuildSeverity_Error), pFileLoc,
|
---|
1268 | _("The '%.*s' accessor can only be used in the context of a kBuild object"),
|
---|
1269 | (int)cchOrgExpr, pchOrgExpr);
|
---|
1270 | if (penmType)
|
---|
1271 | *penmType = kBuildType_Invalid;
|
---|
1272 | }
|
---|
1273 | else
|
---|
1274 | {
|
---|
1275 | /* Genric accessor. Check the type and look up the object. */
|
---|
1276 | enum kBuildType enmType = eval_kbuild_type_from_string(pchType, cchType);
|
---|
1277 | if (penmType)
|
---|
1278 | *penmType = enmType;
|
---|
1279 | if (enmType != kBuildType_Invalid)
|
---|
1280 | {
|
---|
1281 | struct kbuild_object *pObj = lookup_kbuild_object(enmType, pchObjName, cchObjName);
|
---|
1282 | if (pObj)
|
---|
1283 | return pObj;
|
---|
1284 |
|
---|
1285 | /* failed. */
|
---|
1286 | kbuild_report_problem(enmSeverity, pFileLoc,
|
---|
1287 | _("kBuild object '%s' not found in kBuild variable accessor '%.*s'"),
|
---|
1288 | (int)cchObjName, pchObjName, (int)cchOrgExpr, pchOrgExpr);
|
---|
1289 | }
|
---|
1290 | else
|
---|
1291 | kbuild_report_problem(MAX(enmSeverity, kBuildSeverity_Error), pFileLoc,
|
---|
1292 | _("Invalid type '%.*s' specified in kBuild variable accessor '%.*s'"),
|
---|
1293 | (int)cchType, pchType, (int)cchOrgExpr, pchOrgExpr);
|
---|
1294 | }
|
---|
1295 | return NULL;
|
---|
1296 | }
|
---|
1297 | }
|
---|
1298 | }
|
---|
1299 | }
|
---|
1300 |
|
---|
1301 | *ppchVarNm = NULL;
|
---|
1302 | *pcchVarNm = 0;
|
---|
1303 | if (penmType)
|
---|
1304 | *penmType = kBuildType_Invalid;
|
---|
1305 | return KOBJ_NOT_KBUILD_ACCESSOR;
|
---|
1306 | }
|
---|
1307 |
|
---|
1308 | /**
|
---|
1309 | * Looks up a variable in a kBuild object.
|
---|
1310 | *
|
---|
1311 | * The caller has done minimal matching, i.e. starting square brackets and
|
---|
1312 | * minimum length. We do the rest here.
|
---|
1313 | *
|
---|
1314 | * @returns Pointer to the variable if found.
|
---|
1315 | * @retval NULL if not found.
|
---|
1316 | * @retval VAR_NOT_KBUILD_ACCESSOR if no a kBuild variable accessor.
|
---|
1317 | *
|
---|
1318 | * @param pchName The kBuild variable accessor expression.
|
---|
1319 | * @param cchName Length of the expression.
|
---|
1320 | */
|
---|
1321 | struct variable *
|
---|
1322 | lookup_kbuild_object_variable_accessor(const char *pchName, size_t cchName)
|
---|
1323 | {
|
---|
1324 | const char * const pchOrgName = pchName;
|
---|
1325 | size_t const cchOrgName = cchName;
|
---|
1326 | const char * pchVarNm;
|
---|
1327 | size_t cchVarNm;
|
---|
1328 | struct kbuild_object *pObj;
|
---|
1329 |
|
---|
1330 | pObj = parse_kbuild_object_variable_accessor(pchName, cchName, kBuildSeverity_Warning, NULL, &pchVarNm, &cchVarNm, NULL);
|
---|
1331 | if (pObj != KOBJ_NOT_KBUILD_ACCESSOR)
|
---|
1332 | {
|
---|
1333 | if (pObj)
|
---|
1334 | {
|
---|
1335 | /*
|
---|
1336 | * Do the variable lookup.
|
---|
1337 | */
|
---|
1338 | const char *pszCachedName = strcache2_lookup(&variable_strcache, pchVarNm, cchVarNm);
|
---|
1339 | if (pszCachedName)
|
---|
1340 | {
|
---|
1341 | struct variable VarKey;
|
---|
1342 | struct variable *pVar;
|
---|
1343 | VarKey.name = pszCachedName;
|
---|
1344 | VarKey.length = cchName;
|
---|
1345 |
|
---|
1346 | pVar = (struct variable *)hash_find_item_strcached(&pObj->pVariables->set->table, &VarKey);
|
---|
1347 | if (pVar)
|
---|
1348 | return pVar;
|
---|
1349 |
|
---|
1350 | /*
|
---|
1351 | * Not found, check ancestors if any.
|
---|
1352 | */
|
---|
1353 | if (pObj->pszParent || pObj->pszTemplate)
|
---|
1354 | {
|
---|
1355 | struct kbuild_object *pParent = pObj;
|
---|
1356 | for (;;)
|
---|
1357 | {
|
---|
1358 | pParent = resolve_kbuild_object_parent(pParent, 0 /*fQuiet*/);
|
---|
1359 | if (!pParent)
|
---|
1360 | break;
|
---|
1361 | pVar = (struct variable *)hash_find_item_strcached(&pParent->pVariables->set->table, &VarKey);
|
---|
1362 | if (pVar)
|
---|
1363 | return pVar;
|
---|
1364 | }
|
---|
1365 | }
|
---|
1366 | }
|
---|
1367 | }
|
---|
1368 |
|
---|
1369 | /* Not found one way or the other. */
|
---|
1370 | return NULL;
|
---|
1371 | }
|
---|
1372 |
|
---|
1373 | /* Not a kBuild object variable accessor. */
|
---|
1374 | return VAR_NOT_KBUILD_ACCESSOR;
|
---|
1375 | }
|
---|
1376 |
|
---|
1377 | /** @} */
|
---|
1378 |
|
---|
1379 | void print_kbuild_data_base(void)
|
---|
1380 | {
|
---|
1381 | struct kbuild_object *pCur;
|
---|
1382 |
|
---|
1383 | puts(_("\n# kBuild defines"));
|
---|
1384 |
|
---|
1385 | for (pCur = g_pHeadKbObjs; pCur; pCur = pCur->pGlobalNext)
|
---|
1386 | {
|
---|
1387 | printf("\nkBuild-define-%s %s",
|
---|
1388 | eval_kbuild_type_to_string(pCur->enmType), pCur->pszName);
|
---|
1389 | if (pCur->pszParent)
|
---|
1390 | printf(" extending %s", pCur->pszParent);
|
---|
1391 | if (pCur->pszTemplate)
|
---|
1392 | printf(" using %s", pCur->pszTemplate);
|
---|
1393 | putchar('\n');
|
---|
1394 |
|
---|
1395 | print_variable_set(pCur->pVariables->set, "");
|
---|
1396 |
|
---|
1397 | printf("kBuild-endef-%s %s\n",
|
---|
1398 | eval_kbuild_type_to_string(pCur->enmType), pCur->pszName);
|
---|
1399 | }
|
---|
1400 | /** @todo hash stats. */
|
---|
1401 | }
|
---|
1402 |
|
---|
1403 | void print_kbuild_define_stats(void)
|
---|
1404 | {
|
---|
1405 | /* later when hashing stuff */
|
---|
1406 | }
|
---|
1407 |
|
---|