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/cvs/libcoro/coro.c
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Comparing libcoro/coro.c (file contents):
Revision 1.43 by root, Sun Nov 16 00:55:41 2008 UTC vs.
Revision 1.52 by root, Fri Apr 2 20:21:21 2010 UTC

1/* 1/*
2 * Copyright (c) 2001-2008 Marc Alexander Lehmann <schmorp@schmorp.de> 2 * Copyright (c) 2001-2009 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,
… …
100 100
101/* trampoline signal handler */ 101/* trampoline signal handler */
102static void 102static void
103trampoline (int sig) 103trampoline (int sig)
104{ 104{
105 if (
106 #if _XOPEN_UNIX > 0
107 _setjmp (new_coro->env) 105 if (coro_setjmp (new_coro->env))
108 #else
109 sigsetjmp (new_coro->env, 0)
110 #endif
111 ) {
112 coro_init (); /* start it */ 106 coro_init (); /* start it */
113 }
114 else 107 else
115 trampoline_done = 1; 108 trampoline_done = 1;
116} 109}
117 110
118# endif 111# endif
… …
122 asm ( 115 asm (
123 ".text\n" 116 ".text\n"
124 ".globl coro_transfer\n" 117 ".globl coro_transfer\n"
125 ".type coro_transfer, @function\n" 118 ".type coro_transfer, @function\n"
126 "coro_transfer:\n" 119 "coro_transfer:\n"
120 /* windows, of course, gives a shit on the amd64 ABI and uses different registers */
121 /* http://blogs.msdn.com/freik/archive/2005/03/17/398200.aspx */
127 #if __amd64 122 #if __amd64
128 #define NUM_SAVED 6 123 #define NUM_SAVED 6
129 "\tpush %rbp\n" 124 "\tpush %rbp\n"
130 "\tpush %rbx\n" 125 "\tpush %rbx\n"
131 "\tpush %r12\n" 126 "\tpush %r12\n"
132 "\tpush %r13\n" 127 "\tpush %r13\n"
133 "\tpush %r14\n" 128 "\tpush %r14\n"
134 "\tpush %r15\n" 129 "\tpush %r15\n"
130 #if CORO_WIN_TIB
131 "\tpush %gs:0x0\n"
132 "\tpush %gs:0x8\n"
133 "\tpush %gs:0xc\n"
134 #endif
135 "\tmov %rsp, (%rdi)\n" 135 "\tmov %rsp, (%rdi)\n"
136 "\tmov (%rsi), %rsp\n" 136 "\tmov (%rsi), %rsp\n"
137 #if CORO_WIN_TIB
138 "\tpop %gs:0xc\n"
139 "\tpop %gs:0x8\n"
140 "\tpop %gs:0x0\n"
141 #endif
137 "\tpop %r15\n" 142 "\tpop %r15\n"
138 "\tpop %r14\n" 143 "\tpop %r14\n"
139 "\tpop %r13\n" 144 "\tpop %r13\n"
140 "\tpop %r12\n" 145 "\tpop %r12\n"
141 "\tpop %rbx\n" 146 "\tpop %rbx\n"
… …
144 #define NUM_SAVED 4 149 #define NUM_SAVED 4
145 "\tpush %ebp\n" 150 "\tpush %ebp\n"
146 "\tpush %ebx\n" 151 "\tpush %ebx\n"
147 "\tpush %esi\n" 152 "\tpush %esi\n"
148 "\tpush %edi\n" 153 "\tpush %edi\n"
154 #if CORO_WIN_TIB
155 "\tpush %fs:0\n"
156 "\tpush %fs:4\n"
157 "\tpush %fs:8\n"
158 #endif
149 "\tmov %esp, (%eax)\n" 159 "\tmov %esp, (%eax)\n"
150 "\tmov (%edx), %esp\n" 160 "\tmov (%edx), %esp\n"
161 #if CORO_WIN_TIB
162 "\tpop %fs:8\n"
163 "\tpop %fs:4\n"
164 "\tpop %fs:0\n"
165 #endif
151 "\tpop %edi\n" 166 "\tpop %edi\n"
152 "\tpop %esi\n" 167 "\tpop %esi\n"
153 "\tpop %ebx\n" 168 "\tpop %ebx\n"
154 "\tpop %ebp\n" 169 "\tpop %ebp\n"
155 #else 170 #else
… …
229 sigaction (SIGUSR2, &osa, 0); 244 sigaction (SIGUSR2, &osa, 0);
230 sigprocmask (SIG_SETMASK, &osig, 0); 245 sigprocmask (SIG_SETMASK, &osig, 0);
231 246
232# elif CORO_LOSER 247# elif CORO_LOSER
233 248
234 setjmp (ctx->env); 249 coro_setjmp (ctx->env);
235 #if __CYGWIN__ 250 #if __CYGWIN__ && __i386
251 ctx->env[8] = (long) coro_init;
236 ctx->env[7] = (long)((char *)sptr + ssize) - sizeof (long); 252 ctx->env[7] = (long) ((char *)sptr + ssize) - sizeof (long);
237 ctx->env[8] = (long)coro_init; 253 #elif __CYGWIN__ && __x86_64
254 ctx->env[7] = (long) coro_init;
255 ctx->env[6] = (long) ((char *)sptr + ssize) - sizeof (long);
256 #elif defined(__MINGW32__)
257 ctx->env[5] = (long) coro_init;
258 ctx->env[4] = (long) ((char *)sptr + ssize) - sizeof (long);
238 #elif defined(_M_IX86) 259 #elif defined(_M_IX86)
239 ((_JUMP_BUFFER *)&ctx->env)->Eip = (long)coro_init; 260 ((_JUMP_BUFFER *)&ctx->env)->Eip = (long) coro_init;
240 ((_JUMP_BUFFER *)&ctx->env)->Esp = (long)STACK_ADJUST_PTR (sptr, ssize) - sizeof (long); 261 ((_JUMP_BUFFER *)&ctx->env)->Esp = (long) STACK_ADJUST_PTR (sptr, ssize) - sizeof (long);
241 #elif defined(_M_AMD64) 262 #elif defined(_M_AMD64)
242 ((_JUMP_BUFFER *)&ctx->env)->Rip = (__int64)coro_init; 263 ((_JUMP_BUFFER *)&ctx->env)->Rip = (__int64) coro_init;
243 ((_JUMP_BUFFER *)&ctx->env)->Rsp = (__int64)STACK_ADJUST_PTR (sptr, ssize) - sizeof (long); 264 ((_JUMP_BUFFER *)&ctx->env)->Rsp = (__int64) STACK_ADJUST_PTR (sptr, ssize) - sizeof (__int64);
244 #elif defined(_M_IA64) 265 #elif defined(_M_IA64)
245 ((_JUMP_BUFFER *)&ctx->env)->StIIP = (__int64)coro_init; 266 ((_JUMP_BUFFER *)&ctx->env)->StIIP = (__int64) coro_init;
246 ((_JUMP_BUFFER *)&ctx->env)->IntSp = (__int64)STACK_ADJUST_PTR (sptr, ssize) - sizeof (long); 267 ((_JUMP_BUFFER *)&ctx->env)->IntSp = (__int64) STACK_ADJUST_PTR (sptr, ssize) - sizeof (__int64);
247 #else 268 #else
248 #error "microsoft libc or architecture not supported" 269 #error "microsoft libc or architecture not supported"
249 #endif 270 #endif
250 271
251# elif CORO_LINUX 272# elif CORO_LINUX
252 273
253 _setjmp (ctx->env); 274 coro_setjmp (ctx->env);
254 #if __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined (JB_PC) && defined (JB_SP) 275 #if __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined (JB_PC) && defined (JB_SP)
255 ctx->env[0].__jmpbuf[JB_PC] = (long)coro_init; 276 ctx->env[0].__jmpbuf[JB_PC] = (long) coro_init;
256 ctx->env[0].__jmpbuf[JB_SP] = (long)STACK_ADJUST_PTR (sptr, ssize) - sizeof (long); 277 ctx->env[0].__jmpbuf[JB_SP] = (long) STACK_ADJUST_PTR (sptr, ssize) - sizeof (long);
257 #elif __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined (__mc68000__) 278 #elif __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined (__mc68000__)
258 ctx->env[0].__jmpbuf[0].__aregs[0] = (long int)coro_init; 279 ctx->env[0].__jmpbuf[0].__aregs[0] = (long int)coro_init;
259 ctx->env[0].__jmpbuf[0].__sp = (int *)((char *)sptr + ssize) - sizeof (long); 280 ctx->env[0].__jmpbuf[0].__sp = (int *) ((char *)sptr + ssize) - sizeof (long);
260 #elif defined (__GNU_LIBRARY__) && defined (__i386__) 281 #elif defined (__GNU_LIBRARY__) && defined (__i386__)
261 ctx->env[0].__jmpbuf[0].__pc = (char *)coro_init; 282 ctx->env[0].__jmpbuf[0].__pc = (char *) coro_init;
262 ctx->env[0].__jmpbuf[0].__sp = (void *)((char *)sptr + ssize) - sizeof (long); 283 ctx->env[0].__jmpbuf[0].__sp = (void *) ((char *)sptr + ssize) - sizeof (long);
263 #elif defined (__GNU_LIBRARY__) && defined (__amd64__) 284 #elif defined (__GNU_LIBRARY__) && defined (__amd64__)
264 ctx->env[0].__jmpbuf[JB_PC] = (long)coro_init; 285 ctx->env[0].__jmpbuf[JB_PC] = (long) coro_init;
265 ctx->env[0].__jmpbuf[0].__sp = (void *)((char *)sptr + ssize) - sizeof (long); 286 ctx->env[0].__jmpbuf[0].__sp = (void *) ((char *)sptr + ssize) - sizeof (long);
266 #else 287 #else
267 #error "linux libc or architecture not supported" 288 #error "linux libc or architecture not supported"
268 #endif 289 #endif
269 290
270# elif CORO_IRIX 291# elif CORO_IRIX
271 292
272 sigsetjmp (ctx->env, 0); 293 coro_setjmp (ctx->env, 0);
273 ctx->env[JB_PC] = (__uint64_t)coro_init; 294 ctx->env[JB_PC] = (__uint64_t)coro_init;
274 ctx->env[JB_SP] = (__uint64_t)STACK_ADJUST_PTR (sptr, ssize) - sizeof (long); 295 ctx->env[JB_SP] = (__uint64_t)STACK_ADJUST_PTR (sptr, ssize) - sizeof (long);
275 296
276# elif CORO_ASM 297# elif CORO_ASM
277 298
278 ctx->sp = (void **)(ssize + (char *)sptr); 299 ctx->sp = (void **)(ssize + (char *)sptr);
279 *--ctx->sp = (void *)abort; /* needed for alignment only */ 300 *--ctx->sp = (void *)abort; /* needed for alignment only */
280 *--ctx->sp = (void *)coro_init; 301 *--ctx->sp = (void *)coro_init;
302
303 #if CORO_WIN_TIB
304 *--ctx->sp = 0; /* ExceptionList */
305 *--ctx->sp = (char *)sptr + ssize; /* StackBase */
306 *--ctx->sp = sptr; /* StackLimit */
307 #endif
308
281 ctx->sp -= NUM_SAVED; 309 ctx->sp -= NUM_SAVED;
282 310
283# elif CORO_UCONTEXT 311# elif CORO_UCONTEXT
284 312
285 getcontext (&(ctx->uc)); 313 getcontext (&(ctx->uc));

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