| … | |
… | |
| 86 | volatile coro_func func = coro_init_func; |
86 | volatile coro_func func = coro_init_func; |
| 87 | volatile void *arg = coro_init_arg; |
87 | volatile void *arg = coro_init_arg; |
| 88 | |
88 | |
| 89 | coro_transfer (new_coro, create_coro); |
89 | coro_transfer (new_coro, create_coro); |
| 90 | |
90 | |
| 91 | #ifdef __linux && __elf |
91 | #if __GCC_HAVE_DWARF2_CFI_ASM && __amd64 |
| 92 | /* we blindly assume on any __linux with __elf we have a new enough gas with .cfi_undefined support */ |
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| 93 | asm (".cfi_undefined rip"); |
92 | asm (".cfi_undefined rip"); |
| 94 | #endif |
93 | #endif |
| 95 | |
94 | |
| 96 | func ((void *)arg); |
95 | func ((void *)arg); |
| 97 | |
96 | |
| … | |
… | |
| 115 | |
114 | |
| 116 | # endif |
115 | # endif |
| 117 | |
116 | |
| 118 | # if CORO_ASM |
117 | # if CORO_ASM |
| 119 | |
118 | |
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119 | #if _WIN32 |
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120 | #define CORO_WIN_TIB 1 |
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121 | #endif |
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122 | |
| 120 | asm ( |
123 | asm ( |
| 121 | ".text\n" |
124 | "\t.text\n" |
| 122 | ".globl coro_transfer\n" |
125 | "\t.globl coro_transfer\n" |
| 123 | ".type coro_transfer, @function\n" |
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| 124 | "coro_transfer:\n" |
126 | "coro_transfer:\n" |
| 125 | /* windows, of course, gives a shit on the amd64 ABI and uses different registers */ |
127 | /* windows, of course, gives a shit on the amd64 ABI and uses different registers */ |
| 126 | /* http://blogs.msdn.com/freik/archive/2005/03/17/398200.aspx */ |
128 | /* http://blogs.msdn.com/freik/archive/2005/03/17/398200.aspx */ |
| 127 | #if __amd64 |
129 | #if __amd64 |
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130 | #ifdef WIN32 |
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131 | /* TODO: xmm6..15 also would need to be saved. sigh. */ |
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132 | #define NUM_SAVED 8 |
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133 | "\tpushq %rsi\n" |
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134 | "\tpushq %rdi\n" |
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135 | "\tpushq %rbp\n" |
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136 | "\tpushq %rbx\n" |
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137 | "\tpushq %r12\n" |
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138 | "\tpushq %r13\n" |
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139 | "\tpushq %r14\n" |
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140 | "\tpushq %r15\n" |
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141 | #if CORO_WIN_TIB |
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142 | "\tpushq %fs:0x0\n" |
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143 | "\tpushq %fs:0x8\n" |
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144 | "\tpushq %fs:0xc\n" |
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145 | #endif |
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146 | "\tmovq %rsp, (%rcx)\n" |
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147 | "\tmovq (%rdx), %rsp\n" |
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148 | #if CORO_WIN_TIB |
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149 | "\tpopq %fs:0xc\n" |
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150 | "\tpopq %fs:0x8\n" |
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151 | "\tpopq %fs:0x0\n" |
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152 | #endif |
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153 | "\tpopq %r15\n" |
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154 | "\tpopq %r14\n" |
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155 | "\tpopq %r13\n" |
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156 | "\tpopq %r12\n" |
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157 | "\tpopq %rbx\n" |
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158 | "\tpopq %rbp\n" |
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159 | "\tpopq %rdi\n" |
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160 | "\tpopq %rsi\n" |
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161 | #else |
| 128 | #define NUM_SAVED 6 |
162 | #define NUM_SAVED 6 |
| 129 | "\tpush %rbp\n" |
163 | "\tpushq %rbp\n" |
| 130 | "\tpush %rbx\n" |
164 | "\tpushq %rbx\n" |
| 131 | "\tpush %r12\n" |
165 | "\tpushq %r12\n" |
| 132 | "\tpush %r13\n" |
166 | "\tpushq %r13\n" |
| 133 | "\tpush %r14\n" |
167 | "\tpushq %r14\n" |
| 134 | "\tpush %r15\n" |
168 | "\tpushq %r15\n" |
| 135 | #if CORO_WIN_TIB |
169 | "\tmovq %rsp, (%rdi)\n" |
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170 | "\tmovq (%rsi), %rsp\n" |
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171 | "\tpopq %r15\n" |
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172 | "\tpopq %r14\n" |
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173 | "\tpopq %r13\n" |
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174 | "\tpopq %r12\n" |
| 136 | "\tpush %gs:0x0\n" |
175 | "\tpopq %rbx\n" |
| 137 | "\tpush %gs:0x8\n" |
176 | "\tpopq %rbp\n" |
| 138 | "\tpush %gs:0xc\n" |
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| 139 | #endif |
177 | #endif |
| 140 | "\tmov %rsp, (%rdi)\n" |
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| 141 | "\tmov (%rsi), %rsp\n" |
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| 142 | #if CORO_WIN_TIB |
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| 143 | "\tpop %gs:0xc\n" |
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| 144 | "\tpop %gs:0x8\n" |
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| 145 | "\tpop %gs:0x0\n" |
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| 146 | #endif |
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| 147 | "\tpop %r15\n" |
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| 148 | "\tpop %r14\n" |
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| 149 | "\tpop %r13\n" |
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| 150 | "\tpop %r12\n" |
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| 151 | "\tpop %rbx\n" |
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| 152 | "\tpop %rbp\n" |
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| 153 | #elif __i386 |
178 | #elif __i386 |
| 154 | #define NUM_SAVED 4 |
179 | #define NUM_SAVED 4 |
| 155 | "\tpush %ebp\n" |
180 | "\tpushl %ebp\n" |
| 156 | "\tpush %ebx\n" |
181 | "\tpushl %ebx\n" |
| 157 | "\tpush %esi\n" |
182 | "\tpushl %esi\n" |
| 158 | "\tpush %edi\n" |
183 | "\tpushl %edi\n" |
| 159 | #if CORO_WIN_TIB |
184 | #if CORO_WIN_TIB |
| 160 | "\tpush %fs:0\n" |
185 | "\tpushl %fs:0\n" |
| 161 | "\tpush %fs:4\n" |
186 | "\tpushl %fs:4\n" |
| 162 | "\tpush %fs:8\n" |
187 | "\tpushl %fs:8\n" |
| 163 | #endif |
188 | #endif |
| 164 | "\tmov %esp, (%eax)\n" |
189 | "\tmovl %esp, (%eax)\n" |
| 165 | "\tmov (%edx), %esp\n" |
190 | "\tmovl (%edx), %esp\n" |
| 166 | #if CORO_WIN_TIB |
191 | #if CORO_WIN_TIB |
| 167 | "\tpop %fs:8\n" |
192 | "\tpopl %fs:8\n" |
| 168 | "\tpop %fs:4\n" |
193 | "\tpopl %fs:4\n" |
| 169 | "\tpop %fs:0\n" |
194 | "\tpopl %fs:0\n" |
| 170 | #endif |
195 | #endif |
| 171 | "\tpop %edi\n" |
196 | "\tpopl %edi\n" |
| 172 | "\tpop %esi\n" |
197 | "\tpopl %esi\n" |
| 173 | "\tpop %ebx\n" |
198 | "\tpopl %ebx\n" |
| 174 | "\tpop %ebp\n" |
199 | "\tpopl %ebp\n" |
| 175 | #else |
200 | #else |
| 176 | #error unsupported architecture |
201 | #error unsupported architecture |
| 177 | #endif |
202 | #endif |
| 178 | "\tret\n" |
203 | "\tret\n" |
| 179 | ); |
204 | ); |
