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/cvs/libcoro/coro.c
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Comparing libcoro/coro.c (file contents):
Revision 1.19 by root, Wed Oct 19 19:04:24 2005 UTC vs.
Revision 1.23 by root, Thu Nov 30 18:21:14 2006 UTC

1/* 1/*
2 * Copyright (c) 2001-2005 Marc Alexander Lehmann <schmorp@schmorp.de> 2 * Copyright (c) 2001-2006 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,
… …
47# define STACK_ADJUST_PTR(sp,ss) (sp) 47# define STACK_ADJUST_PTR(sp,ss) (sp)
48# define STACK_ADJUST_SIZE(sp,ss) (ss) 48# define STACK_ADJUST_SIZE(sp,ss) (ss)
49# endif 49# endif
50#endif 50#endif
51 51
52#if CORO_UCONTEXT
53# include <stddef.h>
54#endif
55
52#if CORO_SJLJ || CORO_LOSER || CORO_LINUX || CORO_IRIX 56#if CORO_SJLJ || CORO_LOSER || CORO_LINUX || CORO_IRIX
53 57
54#include <stdlib.h> 58#include <stdlib.h>
55 59
56#if CORO_SJLJ 60#if CORO_SJLJ
… …
94# endif 98# endif
95 99
96#endif 100#endif
97 101
98/* initialize a machine state */ 102/* initialize a machine state */
99void coro_create(coro_context *ctx, 103void coro_create (coro_context *ctx,
100 coro_func coro, void *arg, 104 coro_func coro, void *arg,
101 void *sptr, long ssize) 105 void *sptr, long ssize)
102{ 106{
103#if CORO_UCONTEXT 107#if CORO_UCONTEXT
104 108
105 getcontext (&(ctx->uc)); 109 getcontext (&(ctx->uc));
106 110
… …
136 nsa.sa_handler = trampoline; 140 nsa.sa_handler = trampoline;
137 sigemptyset (&nsa.sa_mask); 141 sigemptyset (&nsa.sa_mask);
138 nsa.sa_flags = SA_ONSTACK; 142 nsa.sa_flags = SA_ONSTACK;
139 143
140 if (sigaction (SIGUSR2, &nsa, &osa)) 144 if (sigaction (SIGUSR2, &nsa, &osa))
145 {
141 perror ("sigaction"); 146 perror ("sigaction");
147 abort ();
148 }
142 149
143 /* set the new stack */ 150 /* set the new stack */
144 nstk.ss_sp = STACK_ADJUST_PTR (sptr,ssize); /* yes, some platforms (IRIX) get this wrong. */ 151 nstk.ss_sp = STACK_ADJUST_PTR (sptr,ssize); /* yes, some platforms (IRIX) get this wrong. */
145 nstk.ss_size = STACK_ADJUST_SIZE (sptr,ssize); 152 nstk.ss_size = STACK_ADJUST_SIZE (sptr,ssize);
146 nstk.ss_flags = 0; 153 nstk.ss_flags = 0;
147 154
148 if (sigaltstack (&nstk, &ostk) < 0) 155 if (sigaltstack (&nstk, &ostk) < 0)
156 {
149 perror ("sigaltstack"); 157 perror ("sigaltstack");
158 abort ();
159 }
150 160
151 trampoline_count = 0; 161 trampoline_count = 0;
152 kill (getpid (), SIGUSR2); 162 kill (getpid (), SIGUSR2);
153 sigfillset (&nsig); sigdelset (&nsig, SIGUSR2); 163 sigfillset (&nsig); sigdelset (&nsig, SIGUSR2);
154 164
… …
172 sigprocmask (SIG_SETMASK, &osig, 0); 182 sigprocmask (SIG_SETMASK, &osig, 0);
173 183
174# elif CORO_LOSER 184# elif CORO_LOSER
175 185
176 setjmp (ctx->env); 186 setjmp (ctx->env);
187#if __CYGWIN__
177 ctx->env[7] = (long)((char *)sptr + ssize); 188 ctx->env[7] = (long)((char *)sptr + ssize);
178 ctx->env[8] = (long)coro_init; 189 ctx->env[8] = (long)coro_init;
190#elif defined(_M_IX86)
191 ((_JUMP_BUFFER *)&ctx->env)->Eip = (long)coro_init;
192 ((_JUMP_BUFFER *)&ctx->env)->Esp = (long)STACK_ADJUST_PTR (sptr,ssize);
193#elif defined(_M_AMD64)
194 ((_JUMP_BUFFER *)&ctx->env)->Rip = (__int64)coro_init;
195 ((_JUMP_BUFFER *)&ctx->env)->Rsp = (__int64)STACK_ADJUST_PTR (sptr,ssize);
196#elif defined(_M_IA64)
197 ((_JUMP_BUFFER *)&ctx->env)->StIIP = (__int64)coro_init;
198 ((_JUMP_BUFFER *)&ctx->env)->IntSp = (__int64)STACK_ADJUST_PTR (sptr,ssize);
199#else
200#error "microsoft libc or architecture not supported"
201#endif
179 202
180# elif CORO_LINUX 203# elif CORO_LINUX
181 204
182 setjmp (ctx->env); 205 _setjmp (ctx->env);
183#if defined(__GLIBC__) && defined(__GLIBC_MINOR__) \ 206#if defined(__GLIBC__) && defined(__GLIBC_MINOR__) \
184 && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined(JB_PC) && defined(JB_SP) 207 && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined(JB_PC) && defined(JB_SP)
185 ctx->env[0].__jmpbuf[JB_PC] = (long)coro_init; 208 ctx->env[0].__jmpbuf[JB_PC] = (long)coro_init;
186 ctx->env[0].__jmpbuf[JB_SP] = (long)STACK_ADJUST_PTR (sptr,ssize); 209 ctx->env[0].__jmpbuf[JB_SP] = (long)STACK_ADJUST_PTR (sptr,ssize);
187#elif defined(__GLIBC__) && defined(__GLIBC_MINOR__) \ 210#elif defined(__GLIBC__) && defined(__GLIBC_MINOR__) \

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