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30 | * go to Ralf S. Engelschall <rse@engelschall.com>. |
30 | * go to Ralf S. Engelschall <rse@engelschall.com>. |
31 | */ |
31 | */ |
32 | |
32 | |
33 | #include "coro.h" |
33 | #include "coro.h" |
34 | |
34 | |
35 | #if CORO_LOOSE || CORO_SJLJ |
35 | #if CORO_LOOSE || CORO_SJLJ || CORO_LINUX |
36 | |
36 | |
37 | #include <signal.h> |
37 | #include <signal.h> |
38 | |
38 | |
39 | static volatile coro_func coro_init_func; |
39 | static volatile coro_func coro_init_func; |
40 | static volatile void *coro_init_arg; |
40 | static volatile void *coro_init_arg; |
… | |
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44 | coro_init (void) |
44 | coro_init (void) |
45 | { |
45 | { |
46 | volatile coro_func func = coro_init_func; |
46 | volatile coro_func func = coro_init_func; |
47 | volatile void *arg = coro_init_arg; |
47 | volatile void *arg = coro_init_arg; |
48 | |
48 | |
49 | coro_transfer (new_coro, create_coro); |
49 | coro_transfer ((coro_context *)new_coro, (coro_context *)create_coro); |
50 | |
50 | |
51 | func (arg); |
51 | func ((void *)arg); |
52 | |
52 | |
53 | /* the new coro returned. bad. just abort() for now */ |
53 | /* the new coro returned. bad. just abort() for now */ |
54 | abort (); |
54 | abort (); |
55 | } |
55 | } |
56 | |
56 | |
… | |
… | |
61 | |
61 | |
62 | /* trampoline signal handler */ |
62 | /* trampoline signal handler */ |
63 | static void |
63 | static void |
64 | trampoline(int sig) |
64 | trampoline(int sig) |
65 | { |
65 | { |
66 | if (setjmp (&(new_coro->env))) |
66 | if (setjmp (((coro_context *)new_coro)->env)) |
67 | coro_init (); /* start it */ |
67 | coro_init (); /* start it */ |
68 | else |
68 | else |
69 | trampoline_count++; |
69 | trampoline_count++; |
70 | } |
70 | } |
71 | |
71 | |
… | |
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89 | ctx->uc.uc_stack.ss_size = (size_t) ssize; |
89 | ctx->uc.uc_stack.ss_size = (size_t) ssize; |
90 | ctx->uc.uc_stack.ss_flags = 0; |
90 | ctx->uc.uc_stack.ss_flags = 0; |
91 | |
91 | |
92 | makecontext (&(ctx->uc), (void (*)()) coro, 1, arg); |
92 | makecontext (&(ctx->uc), (void (*)()) coro, 1, arg); |
93 | |
93 | |
94 | #elif CORO_SJLJ || CORO_LOOSE |
94 | #elif CORO_SJLJ || CORO_LOOSE || CORO_LINUX |
95 | |
95 | |
96 | # if CORO_SJLJ |
96 | # if CORO_SJLJ |
97 | stack_t ostk, nstk; |
97 | stack_t ostk, nstk; |
98 | struct sigaction osa, nsa; |
98 | struct sigaction osa, nsa; |
99 | sigset_t nsig, osig; |
99 | sigset_t nsig, osig; |
… | |
… | |
149 | |
149 | |
150 | sigaction (SIGUSR1, &osa, 0); |
150 | sigaction (SIGUSR1, &osa, 0); |
151 | |
151 | |
152 | sigprocmask (SIG_SETMASK, &osig, 0); |
152 | sigprocmask (SIG_SETMASK, &osig, 0); |
153 | |
153 | |
154 | # elif MS_LOOSE |
154 | # elif CORO_LOOSE |
155 | |
155 | |
156 | coro_save (ctx); |
156 | setjmp (ctx->env); |
157 | ctx->env[7] = (int)((char *)sptr + ssize); |
157 | ctx->env[7] = (int)((char *)sptr + ssize); |
158 | ctx->env[8] = (int)coro; |
158 | ctx->env[8] = (int)coro_init; |
|
|
159 | |
|
|
160 | # elif CORO_LINUX |
|
|
161 | |
|
|
162 | setjmp (ctx->env); |
|
|
163 | #if defined(__GLIBC__) && defined(__GLIBC_MINOR__) \ |
|
|
164 | && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined(JB_PC) && defined(JB_SP) |
|
|
165 | ctx->env[0].__jmpbuf[JB_PC] = (int)coro_init; |
|
|
166 | ctx->env[0].__jmpbuf[JB_SP] = (int)((char *)sptr + ssize); |
|
|
167 | #elif defined(__GLIBC__) && defined(__GLIBC_MINOR__) \ |
|
|
168 | && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined(__mc68000__) |
|
|
169 | ctx->env[0].__jmpbuf[0].__aregs[0] = (long int)coro_init; |
|
|
170 | ctx->env[0].__jmpbuf[0].__sp = (int *)((char *)sptr + ssize); |
|
|
171 | #elif defined(__GNU_LIBRARY__) && defined(__i386__) |
|
|
172 | ctx->env[0].__jmpbuf[0].__pc = (char *)coro_init; |
|
|
173 | ctx->env[0].__jmpbuf[0].__sp = (void *)((char *)sptr + ssize); |
|
|
174 | #else |
|
|
175 | #error "Unsupported Linux (g)libc version and/or platform" |
|
|
176 | #endif |
159 | |
177 | |
160 | # endif |
178 | # endif |
161 | |
179 | |
162 | coro_transfer (create_coro, new_coro); |
180 | coro_transfer ((coro_context *)create_coro, (coro_context *)new_coro); |
163 | |
181 | |
164 | #else |
182 | #else |
165 | error unsupported architecture |
183 | error unsupported architecture |
166 | #endif |
184 | #endif |
167 | } |
185 | } |