1 | /* |
1 | /* |
2 | * Copyright (c) 2001-2008 Marc Alexander Lehmann <schmorp@schmorp.de> |
2 | * Copyright (c) 2001-2011 Marc Alexander Lehmann <schmorp@schmorp.de> |
3 | * |
3 | * |
4 | * Redistribution and use in source and binary forms, with or without modifica- |
4 | * Redistribution and use in source and binary forms, with or without modifica- |
5 | * tion, are permitted provided that the following conditions are met: |
5 | * tion, are permitted provided that the following conditions are met: |
6 | * |
6 | * |
7 | * 1. Redistributions of source code must retain the above copyright notice, |
7 | * 1. Redistributions of source code must retain the above copyright notice, |
8 | * this list of conditions and the following disclaimer. |
8 | * this list of conditions and the following disclaimer. |
9 | * |
9 | * |
10 | * 2. Redistributions in binary form must reproduce the above copyright |
10 | * 2. Redistributions in binary form must reproduce the above copyright |
11 | * notice, this list of conditions and the following disclaimer in the |
11 | * notice, this list of conditions and the following disclaimer in the |
12 | * documentation and/or other materials provided with the distribution. |
12 | * documentation and/or other materials provided with the distribution. |
13 | * |
13 | * |
14 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
14 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
15 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
15 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
16 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
16 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
17 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
17 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
18 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
18 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
… | |
… | |
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 | |
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91 | #if __GCC_HAVE_DWARF2_CFI_ASM && __amd64 |
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92 | asm (".cfi_undefined rip"); |
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93 | #endif |
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94 | |
91 | func ((void *)arg); |
95 | func ((void *)arg); |
92 | |
96 | |
93 | /* the new coro returned. bad. just abort() for now */ |
97 | /* the new coro returned. bad. just abort() for now */ |
94 | abort (); |
98 | abort (); |
95 | } |
99 | } |
… | |
… | |
100 | |
104 | |
101 | /* trampoline signal handler */ |
105 | /* trampoline signal handler */ |
102 | static void |
106 | static void |
103 | trampoline (int sig) |
107 | trampoline (int sig) |
104 | { |
108 | { |
105 | if ( |
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106 | #if _XOPEN_UNIX > 0 |
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107 | _setjmp (new_coro->env) |
109 | if (coro_setjmp (new_coro->env)) |
108 | #else |
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109 | sigsetjmp (new_coro->env, 0) |
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110 | #endif |
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111 | ) { |
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112 | coro_init (); /* start it */ |
110 | coro_init (); /* start it */ |
113 | } |
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114 | else |
111 | else |
115 | trampoline_done = 1; |
112 | trampoline_done = 1; |
116 | } |
113 | } |
117 | |
114 | |
118 | # endif |
115 | # endif |
119 | |
116 | |
120 | # if CORO_ASM |
117 | # if CORO_ASM |
121 | |
118 | |
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119 | #if _WIN32 || __CYGWIN__ |
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120 | #define CORO_WIN_TIB 1 |
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121 | #endif |
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122 | |
122 | asm ( |
123 | asm ( |
123 | ".text\n" |
124 | "\t.text\n" |
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125 | #if _WIN32 || __CYGWIN__ |
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126 | "\t.globl _coro_transfer\n" |
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127 | "_coro_transfer:\n" |
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128 | #else |
124 | ".globl coro_transfer\n" |
129 | "\t.globl coro_transfer\n" |
125 | ".type coro_transfer, @function\n" |
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126 | "coro_transfer:\n" |
130 | "coro_transfer:\n" |
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131 | #endif |
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132 | /* windows, of course, gives a shit on the amd64 ABI and uses different registers */ |
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133 | /* http://blogs.msdn.com/freik/archive/2005/03/17/398200.aspx */ |
127 | #if __amd64 |
134 | #if __amd64 |
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135 | |
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136 | #if _WIN32 || __CYGWIN__ |
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137 | #define NUM_SAVED 29 |
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138 | "\tsubq $168, %rsp\t" /* one dummy qword to improve alignment */ |
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139 | "\tmovaps %xmm6, (%rsp)\n" |
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140 | "\tmovaps %xmm7, 16(%rsp)\n" |
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141 | "\tmovaps %xmm8, 32(%rsp)\n" |
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142 | "\tmovaps %xmm9, 48(%rsp)\n" |
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143 | "\tmovaps %xmm10, 64(%rsp)\n" |
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144 | "\tmovaps %xmm11, 80(%rsp)\n" |
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145 | "\tmovaps %xmm12, 96(%rsp)\n" |
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146 | "\tmovaps %xmm13, 112(%rsp)\n" |
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147 | "\tmovaps %xmm14, 128(%rsp)\n" |
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148 | "\tmovaps %xmm15, 144(%rsp)\n" |
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149 | "\tpushq %rsi\n" |
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150 | "\tpushq %rdi\n" |
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151 | "\tpushq %rbp\n" |
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152 | "\tpushq %rbx\n" |
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153 | "\tpushq %r12\n" |
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154 | "\tpushq %r13\n" |
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155 | "\tpushq %r14\n" |
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156 | "\tpushq %r15\n" |
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157 | #if CORO_WIN_TIB |
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158 | "\tpushq %fs:0x0\n" |
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159 | "\tpushq %fs:0x8\n" |
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160 | "\tpushq %fs:0xc\n" |
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161 | #endif |
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162 | "\tmovq %rsp, (%rcx)\n" |
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163 | "\tmovq (%rdx), %rsp\n" |
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164 | #if CORO_WIN_TIB |
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165 | "\tpopq %fs:0xc\n" |
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166 | "\tpopq %fs:0x8\n" |
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167 | "\tpopq %fs:0x0\n" |
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168 | #endif |
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169 | "\tpopq %r15\n" |
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170 | "\tpopq %r14\n" |
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171 | "\tpopq %r13\n" |
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172 | "\tpopq %r12\n" |
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173 | "\tpopq %rbx\n" |
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174 | "\tpopq %rbp\n" |
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175 | "\tpopq %rdi\n" |
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176 | "\tpopq %rsi\n" |
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177 | "\tmovaps (%rsp), %xmm6\n" |
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178 | "\tmovaps 16(%rsp), %xmm7\n" |
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179 | "\tmovaps 32(%rsp), %xmm8\n" |
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180 | "\tmovaps 48(%rsp), %xmm9\n" |
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181 | "\tmovaps 64(%rsp), %xmm10\n" |
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182 | "\tmovaps 80(%rsp), %xmm11\n" |
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183 | "\tmovaps 96(%rsp), %xmm12\n" |
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184 | "\tmovaps 112(%rsp), %xmm13\n" |
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185 | "\tmovaps 128(%rsp), %xmm14\n" |
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186 | "\tmovaps 144(%rsp), %xmm15\n" |
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187 | "\taddq $168, %rsp\n" |
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188 | #else |
128 | #define NUM_SAVED 6 |
189 | #define NUM_SAVED 6 |
129 | "\tpush %rbp\n" |
190 | "\tpushq %rbp\n" |
130 | "\tpush %rbx\n" |
191 | "\tpushq %rbx\n" |
131 | "\tpush %r12\n" |
192 | "\tpushq %r12\n" |
132 | "\tpush %r13\n" |
193 | "\tpushq %r13\n" |
133 | "\tpush %r14\n" |
194 | "\tpushq %r14\n" |
134 | "\tpush %r15\n" |
195 | "\tpushq %r15\n" |
135 | "\tmov %rsp, (%rdi)\n" |
196 | "\tmovq %rsp, (%rdi)\n" |
136 | "\tmov (%rsi), %rsp\n" |
197 | "\tmovq (%rsi), %rsp\n" |
137 | "\tpop %r15\n" |
198 | "\tpopq %r15\n" |
138 | "\tpop %r14\n" |
199 | "\tpopq %r14\n" |
139 | "\tpop %r13\n" |
200 | "\tpopq %r13\n" |
140 | "\tpop %r12\n" |
201 | "\tpopq %r12\n" |
141 | "\tpop %rbx\n" |
202 | "\tpopq %rbx\n" |
142 | "\tpop %rbp\n" |
203 | "\tpopq %rbp\n" |
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204 | #endif |
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205 | "\tpopq %rcx\n" |
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206 | "\tjmpq *%rcx\n" |
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207 | |
143 | #elif __i386 |
208 | #elif __i386 |
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209 | |
144 | #define NUM_SAVED 4 |
210 | #define NUM_SAVED 4 |
145 | "\tpush %ebp\n" |
211 | "\tpushl %ebp\n" |
146 | "\tpush %ebx\n" |
212 | "\tpushl %ebx\n" |
147 | "\tpush %esi\n" |
213 | "\tpushl %esi\n" |
148 | "\tpush %edi\n" |
214 | "\tpushl %edi\n" |
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215 | #if CORO_WIN_TIB |
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216 | #undef NUM_SAVED |
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217 | #define NUM_SAVED 7 |
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218 | "\tpushl %fs:0\n" |
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219 | "\tpushl %fs:4\n" |
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220 | "\tpushl %fs:8\n" |
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221 | #endif |
149 | "\tmov %esp, (%eax)\n" |
222 | "\tmovl %esp, (%eax)\n" |
150 | "\tmov (%edx), %esp\n" |
223 | "\tmovl (%edx), %esp\n" |
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224 | #if CORO_WIN_TIB |
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225 | "\tpopl %fs:8\n" |
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226 | "\tpopl %fs:4\n" |
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227 | "\tpopl %fs:0\n" |
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228 | #endif |
151 | "\tpop %edi\n" |
229 | "\tpopl %edi\n" |
152 | "\tpop %esi\n" |
230 | "\tpopl %esi\n" |
153 | "\tpop %ebx\n" |
231 | "\tpopl %ebx\n" |
154 | "\tpop %ebp\n" |
232 | "\tpopl %ebp\n" |
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233 | "\tpopl %ecx\n" |
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234 | "\tjmpl *%ecx\n" |
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235 | |
155 | #else |
236 | #else |
156 | #error unsupported architecture |
237 | #error unsupported architecture |
157 | #endif |
238 | #endif |
158 | "\tret\n" |
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159 | ); |
239 | ); |
160 | |
240 | |
161 | # endif |
241 | # endif |
162 | |
242 | |
163 | void |
243 | void |
… | |
… | |
195 | perror ("sigaction"); |
275 | perror ("sigaction"); |
196 | abort (); |
276 | abort (); |
197 | } |
277 | } |
198 | |
278 | |
199 | /* set the new stack */ |
279 | /* set the new stack */ |
200 | nstk.ss_sp = STACK_ADJUST_PTR (sptr,ssize); /* yes, some platforms (IRIX) get this wrong. */ |
280 | nstk.ss_sp = STACK_ADJUST_PTR (sptr, ssize); /* yes, some platforms (IRIX) get this wrong. */ |
201 | nstk.ss_size = STACK_ADJUST_SIZE (sptr,ssize); |
281 | nstk.ss_size = STACK_ADJUST_SIZE (sptr, ssize); |
202 | nstk.ss_flags = 0; |
282 | nstk.ss_flags = 0; |
203 | |
283 | |
204 | if (sigaltstack (&nstk, &ostk) < 0) |
284 | if (sigaltstack (&nstk, &ostk) < 0) |
205 | { |
285 | { |
206 | perror ("sigaltstack"); |
286 | perror ("sigaltstack"); |
… | |
… | |
229 | sigaction (SIGUSR2, &osa, 0); |
309 | sigaction (SIGUSR2, &osa, 0); |
230 | sigprocmask (SIG_SETMASK, &osig, 0); |
310 | sigprocmask (SIG_SETMASK, &osig, 0); |
231 | |
311 | |
232 | # elif CORO_LOSER |
312 | # elif CORO_LOSER |
233 | |
313 | |
234 | setjmp (ctx->env); |
314 | coro_setjmp (ctx->env); |
235 | #if __CYGWIN__ |
315 | #if __CYGWIN__ && __i386 |
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316 | ctx->env[8] = (long) coro_init; |
236 | ctx->env[7] = (long)((char *)sptr + ssize) - sizeof (long); |
317 | ctx->env[7] = (long) ((char *)sptr + ssize) - sizeof (long); |
237 | ctx->env[8] = (long)coro_init; |
318 | #elif __CYGWIN__ && __x86_64 |
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319 | ctx->env[7] = (long) coro_init; |
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320 | ctx->env[6] = (long) ((char *)sptr + ssize) - sizeof (long); |
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321 | #elif defined __MINGW32__ |
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322 | ctx->env[5] = (long) coro_init; |
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323 | ctx->env[4] = (long) ((char *)sptr + ssize) - sizeof (long); |
238 | #elif defined(_M_IX86) |
324 | #elif defined _M_IX86 |
239 | ((_JUMP_BUFFER *)&ctx->env)->Eip = (long)coro_init; |
325 | ((_JUMP_BUFFER *)&ctx->env)->Eip = (long) coro_init; |
240 | ((_JUMP_BUFFER *)&ctx->env)->Esp = (long)STACK_ADJUST_PTR (sptr, ssize) - sizeof (long); |
326 | ((_JUMP_BUFFER *)&ctx->env)->Esp = (long) STACK_ADJUST_PTR (sptr, ssize) - sizeof (long); |
241 | #elif defined(_M_AMD64) |
327 | #elif defined _M_AMD64 |
242 | ((_JUMP_BUFFER *)&ctx->env)->Rip = (__int64)coro_init; |
328 | ((_JUMP_BUFFER *)&ctx->env)->Rip = (__int64) coro_init; |
243 | ((_JUMP_BUFFER *)&ctx->env)->Rsp = (__int64)STACK_ADJUST_PTR (sptr, ssize) - sizeof (long); |
329 | ((_JUMP_BUFFER *)&ctx->env)->Rsp = (__int64) STACK_ADJUST_PTR (sptr, ssize) - sizeof (__int64); |
244 | #elif defined(_M_IA64) |
330 | #elif defined _M_IA64 |
245 | ((_JUMP_BUFFER *)&ctx->env)->StIIP = (__int64)coro_init; |
331 | ((_JUMP_BUFFER *)&ctx->env)->StIIP = (__int64) coro_init; |
246 | ((_JUMP_BUFFER *)&ctx->env)->IntSp = (__int64)STACK_ADJUST_PTR (sptr, ssize) - sizeof (long); |
332 | ((_JUMP_BUFFER *)&ctx->env)->IntSp = (__int64) STACK_ADJUST_PTR (sptr, ssize) - sizeof (__int64); |
247 | #else |
333 | #else |
248 | #error "microsoft libc or architecture not supported" |
334 | #error "microsoft libc or architecture not supported" |
249 | #endif |
335 | #endif |
250 | |
336 | |
251 | # elif CORO_LINUX |
337 | # elif CORO_LINUX |
252 | |
338 | |
253 | _setjmp (ctx->env); |
339 | coro_setjmp (ctx->env); |
254 | #if __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined (JB_PC) && defined (JB_SP) |
340 | #if __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined (JB_PC) && defined (JB_SP) |
255 | ctx->env[0].__jmpbuf[JB_PC] = (long)coro_init; |
341 | ctx->env[0].__jmpbuf[JB_PC] = (long) coro_init; |
256 | ctx->env[0].__jmpbuf[JB_SP] = (long)STACK_ADJUST_PTR (sptr, ssize) - sizeof (long); |
342 | ctx->env[0].__jmpbuf[JB_SP] = (long) STACK_ADJUST_PTR (sptr, ssize) - sizeof (long); |
257 | #elif __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined (__mc68000__) |
343 | #elif __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined (__mc68000__) |
258 | ctx->env[0].__jmpbuf[0].__aregs[0] = (long int)coro_init; |
344 | ctx->env[0].__jmpbuf[0].__aregs[0] = (long int)coro_init; |
259 | ctx->env[0].__jmpbuf[0].__sp = (int *)((char *)sptr + ssize) - sizeof (long); |
345 | ctx->env[0].__jmpbuf[0].__sp = (int *) ((char *)sptr + ssize) - sizeof (long); |
260 | #elif defined (__GNU_LIBRARY__) && defined (__i386__) |
346 | #elif defined (__GNU_LIBRARY__) && defined (__i386__) |
261 | ctx->env[0].__jmpbuf[0].__pc = (char *)coro_init; |
347 | ctx->env[0].__jmpbuf[0].__pc = (char *) coro_init; |
262 | ctx->env[0].__jmpbuf[0].__sp = (void *)((char *)sptr + ssize) - sizeof (long); |
348 | ctx->env[0].__jmpbuf[0].__sp = (void *) ((char *)sptr + ssize) - sizeof (long); |
263 | #elif defined (__GNU_LIBRARY__) && defined (__amd64__) |
349 | #elif defined (__GNU_LIBRARY__) && defined (__amd64__) |
264 | ctx->env[0].__jmpbuf[JB_PC] = (long)coro_init; |
350 | ctx->env[0].__jmpbuf[JB_PC] = (long) coro_init; |
265 | ctx->env[0].__jmpbuf[0].__sp = (void *)((char *)sptr + ssize) - sizeof (long); |
351 | ctx->env[0].__jmpbuf[0].__sp = (void *) ((char *)sptr + ssize) - sizeof (long); |
266 | #else |
352 | #else |
267 | #error "linux libc or architecture not supported" |
353 | #error "linux libc or architecture not supported" |
268 | #endif |
354 | #endif |
269 | |
355 | |
270 | # elif CORO_IRIX |
356 | # elif CORO_IRIX |
271 | |
357 | |
272 | sigsetjmp (ctx->env, 0); |
358 | coro_setjmp (ctx->env, 0); |
273 | ctx->env[JB_PC] = (__uint64_t)coro_init; |
359 | ctx->env[JB_PC] = (__uint64_t)coro_init; |
274 | ctx->env[JB_SP] = (__uint64_t)STACK_ADJUST_PTR (sptr, ssize) - sizeof (long); |
360 | ctx->env[JB_SP] = (__uint64_t)STACK_ADJUST_PTR (sptr, ssize) - sizeof (long); |
275 | |
361 | |
276 | # elif CORO_ASM |
362 | # elif CORO_ASM |
277 | |
363 | |
278 | ctx->sp = (void **)(ssize + (char *)sptr); |
364 | ctx->sp = (void **)(ssize + (char *)sptr); |
279 | *--ctx->sp = (void *)abort; /* needed for alignment only */ |
365 | *--ctx->sp = (void *)abort; /* needed for alignment only */ |
280 | *--ctx->sp = (void *)coro_init; |
366 | *--ctx->sp = (void *)coro_init; |
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367 | |
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368 | #if CORO_WIN_TIB |
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369 | *--ctx->sp = 0; /* ExceptionList */ |
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370 | *--ctx->sp = (char *)sptr + ssize; /* StackBase */ |
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371 | *--ctx->sp = sptr; /* StackLimit */ |
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372 | #endif |
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373 | |
281 | ctx->sp -= NUM_SAVED; |
374 | ctx->sp -= NUM_SAVED; |
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375 | memset (ctx->sp, 0, sizeof (*ctx->sp) * NUM_SAVED); |
282 | |
376 | |
283 | # elif CORO_UCONTEXT |
377 | # elif CORO_UCONTEXT |
284 | |
378 | |
285 | getcontext (&(ctx->uc)); |
379 | getcontext (&(ctx->uc)); |
286 | |
380 | |
… | |
… | |
374 | args.arg = arg; |
468 | args.arg = arg; |
375 | args.self = ctx; |
469 | args.self = ctx; |
376 | args.main = &nctx; |
470 | args.main = &nctx; |
377 | |
471 | |
378 | pthread_attr_init (&attr); |
472 | pthread_attr_init (&attr); |
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473 | #if __UCLIBC__ |
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474 | /* exists, but is borked */ |
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475 | /*pthread_attr_setstacksize (&attr, (size_t)ssize);*/ |
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476 | #elif __CYGWIN__ |
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477 | /* POSIX, not here */ |
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478 | pthread_attr_setstacksize (&attr, (size_t)ssize); |
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479 | #else |
379 | pthread_attr_setstack (&attr, sptr, (size_t)ssize); |
480 | pthread_attr_setstack (&attr, sptr, (size_t)ssize); |
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481 | #endif |
380 | pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS); |
482 | pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS); |
381 | pthread_create (&ctx->id, &attr, coro_init, &args); |
483 | pthread_create (&ctx->id, &attr, coro_init, &args); |
382 | |
484 | |
383 | coro_transfer (args.main, args.self); |
485 | coro_transfer (args.main, args.self); |
384 | } |
486 | } |
… | |
… | |
398 | } |
500 | } |
399 | |
501 | |
400 | pthread_cond_destroy (&ctx->cv); |
502 | pthread_cond_destroy (&ctx->cv); |
401 | } |
503 | } |
402 | |
504 | |
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505 | /*****************************************************************************/ |
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506 | /* fiber backend */ |
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507 | /*****************************************************************************/ |
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508 | #elif CORO_FIBER |
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509 | |
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510 | #define WIN32_LEAN_AND_MEAN |
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511 | #include <windows.h> |
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512 | |
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513 | #include <stdio.h>//D |
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514 | VOID CALLBACK |
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515 | coro_init (PVOID arg) |
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516 | { |
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517 | coro_context *ctx = (coro_context *)arg; |
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518 | |
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519 | ctx->coro (ctx->arg); |
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520 | } |
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521 | |
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522 | void |
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523 | coro_transfer (coro_context *prev, coro_context *next) |
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524 | { |
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525 | if (!prev->fiber) |
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526 | { |
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527 | prev->fiber = GetCurrentFiber (); |
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528 | |
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529 | if (prev->fiber == 0 || prev->fiber == (void *)0x1e00) |
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530 | prev->fiber = ConvertThreadToFiber (0); |
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531 | } |
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532 | |
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533 | SwitchToFiber (next->fiber); |
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534 | } |
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535 | |
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536 | void |
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537 | coro_create (coro_context *ctx, coro_func coro, void *arg, void *sptr, long ssize) |
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538 | { |
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539 | ctx->fiber = 0; |
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540 | ctx->coro = coro; |
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541 | ctx->arg = arg; |
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542 | |
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543 | if (!coro) |
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544 | return; |
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545 | |
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546 | ctx->fiber = CreateFiber (ssize, coro_init, ctx); |
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547 | } |
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548 | |
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549 | void |
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550 | coro_destroy (coro_context *ctx) |
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551 | { |
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552 | DeleteFiber (ctx->fiber); |
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553 | } |
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554 | |
403 | #else |
555 | #else |
404 | # error unsupported backend |
556 | # error unsupported backend |
405 | #endif |
557 | #endif |
406 | |
558 | |