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, |
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38 | # define STACK_ADJUST_PTR(sp,ss) ((char *)(sp) + (ss) - 8) |
38 | # define STACK_ADJUST_PTR(sp,ss) ((char *)(sp) + (ss) - 8) |
39 | # define STACK_ADJUST_SIZE(sp,ss) ((ss) - 8) |
39 | # define STACK_ADJUST_SIZE(sp,ss) ((ss) - 8) |
40 | # elif __i386__ && CORO_LINUX |
40 | # elif __i386__ && CORO_LINUX |
41 | # define STACK_ADJUST_PTR(sp,ss) ((char *)(sp) + (ss)) |
41 | # define STACK_ADJUST_PTR(sp,ss) ((char *)(sp) + (ss)) |
42 | # define STACK_ADJUST_SIZE(sp,ss) (ss) |
42 | # define STACK_ADJUST_SIZE(sp,ss) (ss) |
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43 | # elif __amd64__ && CORO_LINUX |
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44 | # define STACK_ADJUST_PTR(sp,ss) ((char *)(sp) + (ss) - 8) |
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45 | # define STACK_ADJUST_SIZE(sp,ss) (ss) |
43 | # else |
46 | # else |
44 | # define STACK_ADJUST_PTR(sp,ss) (sp) |
47 | # define STACK_ADJUST_PTR(sp,ss) (sp) |
45 | # define STACK_ADJUST_SIZE(sp,ss) (ss) |
48 | # define STACK_ADJUST_SIZE(sp,ss) (ss) |
46 | # endif |
49 | # endif |
47 | #endif |
50 | #endif |
48 | |
51 | |
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52 | #if CORO_UCONTEXT |
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53 | # include <stddef.h> |
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54 | #endif |
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55 | |
49 | #if CORO_SJLJ || CORO_LOOSE || CORO_LINUX || CORO_IRIX |
56 | #if CORO_SJLJ || CORO_LOSER || CORO_LINUX || CORO_IRIX |
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57 | |
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58 | #include <stdlib.h> |
50 | |
59 | |
51 | #if CORO_SJLJ |
60 | #if CORO_SJLJ |
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61 | # include <stdio.h> |
52 | # include <signal.h> |
62 | # include <signal.h> |
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63 | # include <unistd.h> |
53 | #endif |
64 | #endif |
54 | |
65 | |
55 | static volatile coro_func coro_init_func; |
66 | static volatile coro_func coro_init_func; |
56 | static volatile void *coro_init_arg; |
67 | static volatile void *coro_init_arg; |
57 | static volatile coro_context *new_coro, *create_coro; |
68 | static volatile coro_context *new_coro, *create_coro; |
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102 | ctx->uc.uc_stack.ss_size = (size_t) STACK_ADJUST_SIZE (sptr,ssize); |
113 | ctx->uc.uc_stack.ss_size = (size_t) STACK_ADJUST_SIZE (sptr,ssize); |
103 | ctx->uc.uc_stack.ss_flags = 0; |
114 | ctx->uc.uc_stack.ss_flags = 0; |
104 | |
115 | |
105 | makecontext (&(ctx->uc), (void (*)()) coro, 1, arg); |
116 | makecontext (&(ctx->uc), (void (*)()) coro, 1, arg); |
106 | |
117 | |
107 | #elif CORO_SJLJ || CORO_LOOSE || CORO_LINUX || CORO_IRIX |
118 | #elif CORO_SJLJ || CORO_LOSER || CORO_LINUX || CORO_IRIX |
108 | |
119 | |
109 | # if CORO_SJLJ |
120 | # if CORO_SJLJ |
110 | stack_t ostk, nstk; |
121 | stack_t ostk, nstk; |
111 | struct sigaction osa, nsa; |
122 | struct sigaction osa, nsa; |
112 | sigset_t nsig, osig; |
123 | sigset_t nsig, osig; |
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158 | abort (); |
169 | abort (); |
159 | |
170 | |
160 | if (~ostk.ss_flags & SS_DISABLE) |
171 | if (~ostk.ss_flags & SS_DISABLE) |
161 | sigaltstack (&ostk, 0); |
172 | sigaltstack (&ostk, 0); |
162 | |
173 | |
163 | sigaction (SIGUSR1, &osa, 0); |
174 | sigaction (SIGUSR2, &osa, 0); |
164 | |
175 | |
165 | sigprocmask (SIG_SETMASK, &osig, 0); |
176 | sigprocmask (SIG_SETMASK, &osig, 0); |
166 | |
177 | |
167 | # elif CORO_LOOSE |
178 | # elif CORO_LOSER |
168 | |
179 | |
169 | setjmp (ctx->env); |
180 | setjmp (ctx->env); |
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181 | #if __CYGWIN__ |
170 | ctx->env[7] = (long)((char *)sptr + ssize); |
182 | ctx->env[7] = (long)((char *)sptr + ssize); |
171 | ctx->env[8] = (long)coro_init; |
183 | ctx->env[8] = (long)coro_init; |
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184 | #elif defined(_M_IX86) |
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185 | ((_JUMP_BUFFER *)&ctx->env)->Eip = (long)coro_init; |
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186 | ((_JUMP_BUFFER *)&ctx->env)->Esp = (long)STACK_ADJUST_PTR (sptr,ssize); |
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187 | #elif defined(_M_AMD64) |
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188 | ((_JUMP_BUFFER *)&ctx->env)->Rip = (__int64)coro_init; |
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189 | ((_JUMP_BUFFER *)&ctx->env)->Rsp = (__int64)STACK_ADJUST_PTR (sptr,ssize); |
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190 | #elif defined(_M_IA64) |
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191 | ((_JUMP_BUFFER *)&ctx->env)->StIIP = (__int64)coro_init; |
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192 | ((_JUMP_BUFFER *)&ctx->env)->IntSp = (__int64)STACK_ADJUST_PTR (sptr,ssize); |
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193 | #else |
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194 | #error "microsoft libc or architecture not supported" |
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195 | #endif |
172 | |
196 | |
173 | # elif CORO_LINUX |
197 | # elif CORO_LINUX |
174 | |
198 | |
175 | setjmp (ctx->env); |
199 | setjmp (ctx->env); |
176 | #if defined(__GLIBC__) && defined(__GLIBC_MINOR__) \ |
200 | #if defined(__GLIBC__) && defined(__GLIBC_MINOR__) \ |
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184 | #elif defined(__GNU_LIBRARY__) && defined(__i386__) |
208 | #elif defined(__GNU_LIBRARY__) && defined(__i386__) |
185 | ctx->env[0].__jmpbuf[0].__pc = (char *)coro_init; |
209 | ctx->env[0].__jmpbuf[0].__pc = (char *)coro_init; |
186 | ctx->env[0].__jmpbuf[0].__sp = (void *)((char *)sptr + ssize); |
210 | ctx->env[0].__jmpbuf[0].__sp = (void *)((char *)sptr + ssize); |
187 | #elif defined(__GNU_LIBRARY__) && defined(__amd64__) |
211 | #elif defined(__GNU_LIBRARY__) && defined(__amd64__) |
188 | ctx->env[0].__jmpbuf[JB_PC] = (long)coro_init; |
212 | ctx->env[0].__jmpbuf[JB_PC] = (long)coro_init; |
189 | ctx->env[0].__jmpbuf[JB_RSP] = (long)((char *)sptr + ssize); |
213 | ctx->env[0].__jmpbuf[JB_RSP] = (long)STACK_ADJUST_PTR (sptr,ssize); |
190 | #else |
214 | #else |
191 | #error "linux libc or architecture not supported" |
215 | #error "linux libc or architecture not supported" |
192 | #endif |
216 | #endif |
193 | |
217 | |
194 | # elif CORO_IRIX |
218 | # elif CORO_IRIX |