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65 | |
65 | |
66 | static volatile coro_func coro_init_func; |
66 | static volatile coro_func coro_init_func; |
67 | static volatile void *coro_init_arg; |
67 | static volatile void *coro_init_arg; |
68 | static volatile coro_context *new_coro, *create_coro; |
68 | static volatile coro_context *new_coro, *create_coro; |
69 | |
69 | |
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70 | /* what we really want to detect here is wether we use a new-enough version of GAS */ |
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71 | /* instead, check for gcc 3 and ELF and hope for the best */ |
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72 | #if __GNUC__ >= 3 && __ELF__ |
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73 | # define HAVE_CFI 1 |
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74 | #endif |
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75 | |
70 | static void |
76 | static void |
71 | coro_init (void) |
77 | coro_init (void) |
72 | { |
78 | { |
73 | volatile coro_func func = coro_init_func; |
79 | volatile coro_func func = coro_init_func; |
74 | volatile void *arg = coro_init_arg; |
80 | volatile void *arg = coro_init_arg; |
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88 | /* trampoline signal handler */ |
94 | /* trampoline signal handler */ |
89 | static void |
95 | static void |
90 | trampoline (int sig) |
96 | trampoline (int sig) |
91 | { |
97 | { |
92 | if (setjmp (((coro_context *)new_coro)->env)) |
98 | if (setjmp (((coro_context *)new_coro)->env)) |
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99 | { |
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100 | #if HAVE_CFI |
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101 | asm (".cfi_startproc"); |
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102 | #endif |
93 | coro_init (); /* start it */ |
103 | coro_init (); /* start it */ |
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104 | #if HAVE_CFI |
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105 | asm (".cfi_endproc"); |
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106 | #endif |
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107 | } |
94 | else |
108 | else |
95 | trampoline_count++; |
109 | trampoline_count++; |
96 | } |
110 | } |
97 | |
111 | |
98 | # endif |
112 | # endif |
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… | |
201 | #endif |
215 | #endif |
202 | |
216 | |
203 | # elif CORO_LINUX |
217 | # elif CORO_LINUX |
204 | |
218 | |
205 | _setjmp (ctx->env); |
219 | _setjmp (ctx->env); |
206 | #if defined(__GLIBC__) && defined(__GLIBC_MINOR__) \ |
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207 | && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined(JB_PC) && defined(JB_SP) |
220 | #if __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined (JB_PC) && defined (JB_SP) |
208 | ctx->env[0].__jmpbuf[JB_PC] = (long)coro_init; |
221 | ctx->env[0].__jmpbuf[JB_PC] = (long)coro_init; |
209 | ctx->env[0].__jmpbuf[JB_SP] = (long)STACK_ADJUST_PTR (sptr,ssize); |
222 | ctx->env[0].__jmpbuf[JB_SP] = (long)STACK_ADJUST_PTR (sptr, ssize); |
210 | #elif defined(__GLIBC__) && defined(__GLIBC_MINOR__) \ |
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211 | && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined(__mc68000__) |
223 | #elif __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined (__mc68000__) |
212 | ctx->env[0].__jmpbuf[0].__aregs[0] = (long int)coro_init; |
224 | ctx->env[0].__jmpbuf[0].__aregs[0] = (long int)coro_init; |
213 | ctx->env[0].__jmpbuf[0].__sp = (int *)((char *)sptr + ssize); |
225 | ctx->env[0].__jmpbuf[0].__sp = (int *)((char *)sptr + ssize); |
214 | #elif defined(__GNU_LIBRARY__) && defined(__i386__) |
226 | #elif defined (__GNU_LIBRARY__) && defined (__i386__) |
215 | ctx->env[0].__jmpbuf[0].__pc = (char *)coro_init; |
227 | ctx->env[0].__jmpbuf[0].__pc = (char *)coro_init; |
216 | ctx->env[0].__jmpbuf[0].__sp = (void *)((char *)sptr + ssize); |
228 | ctx->env[0].__jmpbuf[0].__sp = (void *)((char *)sptr + ssize); |
217 | #elif defined(__GNU_LIBRARY__) && defined(__amd64__) |
229 | #elif defined (__GNU_LIBRARY__) && defined (__amd64__) |
218 | ctx->env[0].__jmpbuf[JB_PC] = (long)coro_init; |
230 | ctx->env[0].__jmpbuf[JB_PC] = (long)coro_init; |
219 | ctx->env[0].__jmpbuf[JB_RSP] = (long)STACK_ADJUST_PTR (sptr,ssize); |
231 | ctx->env[0].__jmpbuf[JB_RSP] = (long)STACK_ADJUST_PTR (sptr, ssize); |
220 | #else |
232 | #else |
221 | #error "linux libc or architecture not supported" |
233 | #error "linux libc or architecture not supported" |
222 | #endif |
234 | #endif |
223 | |
235 | |
224 | # elif CORO_IRIX |
236 | # elif CORO_IRIX |
225 | |
237 | |
226 | setjmp (ctx->env); |
238 | setjmp (ctx->env); |
227 | ctx->env[JB_PC] = (__uint64_t)coro_init; |
239 | ctx->env[JB_PC] = (__uint64_t)coro_init; |
228 | ctx->env[JB_SP] = (__uint64_t)STACK_ADJUST_PTR (sptr,ssize); |
240 | ctx->env[JB_SP] = (__uint64_t)STACK_ADJUST_PTR (sptr, ssize); |
229 | |
241 | |
230 | # endif |
242 | # endif |
231 | |
243 | |
232 | coro_transfer ((coro_context *)create_coro, (coro_context *)new_coro); |
244 | coro_transfer ((coro_context *)create_coro, (coro_context *)new_coro); |
233 | |
245 | |