1 | ; $Id: setjmp.asm 82968 2020-02-04 10:35:17Z vboxsync $
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2 | ;; @file
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3 | ; IPRT - No-CRT setjmp & longjmp - AMD64 & X86.
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4 | ;
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5 |
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6 | ;
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7 | ; Copyright (C) 2006-2020 Oracle Corporation
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8 | ;
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9 | ; This file is part of VirtualBox Open Source Edition (OSE), as
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10 | ; available from http://www.virtualbox.org. This file is free software;
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11 | ; you can redistribute it and/or modify it under the terms of the GNU
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12 | ; General Public License (GPL) as published by the Free Software
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13 | ; Foundation, in version 2 as it comes in the "COPYING" file of the
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14 | ; VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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15 | ; hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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16 | ;
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17 | ; The contents of this file may alternatively be used under the terms
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18 | ; of the Common Development and Distribution License Version 1.0
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19 | ; (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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20 | ; VirtualBox OSE distribution, in which case the provisions of the
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21 | ; CDDL are applicable instead of those of the GPL.
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22 | ;
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23 | ; You may elect to license modified versions of this file under the
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24 | ; terms and conditions of either the GPL or the CDDL or both.
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25 | ;
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26 |
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27 | %include "iprt/asmdefs.mac"
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28 |
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29 |
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30 | BEGINCODE
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31 |
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32 |
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33 | ;;
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34 | ; @param x86:[esp+4] msc:rcx gcc:rdi The jump buffer pointer.
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35 | BEGINPROC RT_NOCRT(setjmp)
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36 | %ifdef RT_ARCH_AMD64
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37 | %ifndef ASM_CALL64_MSC
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38 | mov rcx, rdi
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39 | %endif
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40 | mov rax, [rsp]
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41 | mov [rcx + 0h*8], rax ; 0 - rip
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42 | lea rdx, [rsp + 8]
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43 | mov [rcx + 1h*8], rdx ; 1 - rsp
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44 | mov [rcx + 2h*8], rbp
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45 | mov [rcx + 3h*8], r15
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46 | mov [rcx + 4h*8], r14
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47 | mov [rcx + 5h*8], r13
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48 | mov [rcx + 6h*8], r12
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49 | mov [rcx + 7h*8], rbx
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50 | %ifdef ASM_CALL64_MSC
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51 | mov [rcx + 8h*8], rsi
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52 | mov [rcx + 9h*8], rdi
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53 | movdqa [rcx + 0ah*8], xmm6
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54 | movdqa [rcx + 0ch*8], xmm7
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55 | movdqa [rcx + 0eh*8], xmm8
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56 | movdqa [rcx + 10h*8], xmm9
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57 | movdqa [rcx + 12h*8], xmm10
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58 | movdqa [rcx + 14h*8], xmm11
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59 | movdqa [rcx + 16h*8], xmm12
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60 | movdqa [rcx + 18h*8], xmm13
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61 | movdqa [rcx + 1ah*8], xmm14
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62 | movdqa [rcx + 1ch*8], xmm15
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63 | %ifndef RT_OS_WINDOWS
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64 | %error "Fix setjmp.h"
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65 | %endif
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66 | %endif
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67 | %else
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68 | mov edx, [esp + 4h]
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69 | mov eax, [esp]
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70 | mov [edx + 0h*4], eax ; eip
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71 | lea ecx, [esp + 4h]
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72 | mov [edx + 1h*4], ecx ; esp
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73 | mov [edx + 2h*4], ebp
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74 | mov [edx + 3h*4], ebx
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75 | mov [edx + 4h*4], edi
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76 | mov [edx + 5h*4], esi
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77 | %endif
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78 | xor eax, eax
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79 | ret
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80 | ENDPROC RT_NOCRT(setjmp)
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81 |
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82 |
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83 | ;;
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84 | ; @param x86:[esp+4] msc:rcx gcc:rdi The jump buffer pointer.
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85 | ; @param x86:[esp+8] msc:rdx gcc:rsi Return value.
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86 | BEGINPROC RT_NOCRT(longjmp)
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87 | %ifdef RT_ARCH_AMD64
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88 | %ifdef ASM_CALL64_MSC
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89 | mov eax, edx ; ret
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90 | %else
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91 | mov rcx, rdi ; jmp_buf
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92 | mov eax, esi ; ret
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93 | %endif
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94 | mov rbp, [rcx + 2h*8]
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95 | mov r15, [rcx + 3h*8]
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96 | mov r14, [rcx + 4h*8]
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97 | mov r13, [rcx + 5h*8]
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98 | mov r12, [rcx + 6h*8]
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99 | mov rbx, [rcx + 7h*8]
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100 | %ifdef ASM_CALL64_MSC
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101 | mov rsi, [rcx + 8h*8]
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102 | mov rdi, [rcx + 9h*8]
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103 | movdqa xmm6, [rcx + 0ah*8]
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104 | movdqa xmm7, [rcx + 0ch*8]
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105 | movdqa xmm8, [rcx + 0eh*8]
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106 | movdqa xmm9, [rcx + 10h*8]
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107 | movdqa xmm10, [rcx + 12h*8]
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108 | movdqa xmm11, [rcx + 14h*8]
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109 | movdqa xmm12, [rcx + 16h*8]
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110 | movdqa xmm13, [rcx + 18h*8]
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111 | movdqa xmm14, [rcx + 1ah*8]
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112 | movdqa xmm15, [rcx + 1ch*8]
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113 | %ifndef RT_OS_WINDOWS
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114 | %error "Fix setjmp.h"
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115 | %endif
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116 | %endif
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117 | test eax, eax
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118 | jnz .fine
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119 | inc al
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120 | .fine:
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121 | mov rsp, [rcx + 1h*8]
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122 | jmp qword [rcx + 0h*8]
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123 | %else
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124 | mov edx, [esp + 4h] ; jmp_buf
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125 | mov eax, [esp + 8h] ; ret
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126 | mov esi, [edx + 5h*4]
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127 | mov edi, [edx + 4h*4]
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128 | mov ebx, [edx + 3h*4]
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129 | mov ebp, [edx + 2h*4]
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130 | test eax, eax
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131 | jnz .fine
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132 | inc al
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133 | .fine:
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134 | mov esp, [edx + 1h*4]
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135 | jmp dword [edx+ 0h*4]
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136 | %endif
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137 | ENDPROC RT_NOCRT(longjmp)
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138 |
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