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… | |
120 | # endif |
120 | # endif |
121 | |
121 | |
122 | #endif |
122 | #endif |
123 | |
123 | |
124 | #if CORO_ASM |
124 | #if CORO_ASM |
125 | void __attribute__((__noinline__, __regparm__(2))) |
125 | asm ( |
126 | coro_transfer (struct coro_context *prev, struct coro_context *next) |
126 | ".text\n" |
127 | { |
127 | ".globl coro_transfer\n" |
128 | asm volatile ( |
128 | ".type coro_transfer, @function\n" |
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129 | "coro_transfer:\n" |
129 | #if __amd64 |
130 | #if __amd64 |
130 | # define NUM_SAVED 5 |
131 | # define NUM_SAVED 5 |
131 | "push %%rbx\n\t" |
132 | "\tpush %rbx\n" |
132 | "push %%r12\n\t" |
133 | "\tpush %r12\n" |
133 | "push %%r13\n\t" |
134 | "\tpush %r13\n" |
134 | "push %%r14\n\t" |
135 | "\tpush %r14\n" |
135 | "push %%r15\n\t" |
136 | "\tpush %r15\n" |
136 | "mov %%rsp, %0\n\t" |
137 | "\tmov %rsp, (%rdi)\n" |
137 | "mov %1, %%rsp\n\t" |
138 | "\tmov (%rsi), %rsp\n" |
138 | "pop %%r15\n\t" |
139 | "\tpop %r15\n" |
139 | "pop %%r14\n\t" |
140 | "\tpop %r14\n" |
140 | "pop %%r13\n\t" |
141 | "\tpop %r13\n" |
141 | "pop %%r12\n\t" |
142 | "\tpop %r12\n" |
142 | "pop %%rbx\n\t" |
143 | "\tpop %rbx\n" |
143 | #elif __i386 |
144 | #elif __i386 |
144 | # define NUM_SAVED 4 |
145 | # define NUM_SAVED 4 |
145 | "push %%ebx\n\t" |
146 | "\tpush %ebx\n" |
146 | "push %%esi\n\t" |
147 | "\tpush %esi\n" |
147 | "push %%edi\n\t" |
148 | "\tpush %edi\n" |
148 | "push %%ebp\n\t" |
149 | "\tpush %ebp\n" |
149 | "mov %%esp, %0\n\t" |
150 | "\tmov %esp, (%eax)\n" |
150 | "mov %1, %%esp\n\t" |
151 | "\tmov (%edx), %esp\n" |
151 | "pop %%ebp\n\t" |
152 | "\tpop %ebp\n" |
152 | "pop %%edi\n\t" |
153 | "\tpop %edi\n" |
153 | "pop %%esi\n\t" |
154 | "\tpop %esi\n" |
154 | "pop %%ebx\n\t" |
155 | "\tpop %ebx\n" |
155 | #else |
156 | #else |
156 | # error unsupported architecture |
157 | # error unsupported architecture |
157 | #endif |
158 | #endif |
158 | : "=m" (prev->sp) |
159 | "\tret\n" |
159 | : "m" (next->sp) |
160 | ); |
160 | ); |
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161 | } |
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162 | #endif |
161 | #endif |
163 | |
162 | |
164 | #if CORO_PTHREAD |
163 | #if CORO_PTHREAD |
165 | |
164 | |
166 | struct coro_init_args { |
165 | struct coro_init_args { |
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184 | func (arg); |
183 | func (arg); |
185 | pthread_mutex_unlock (&coro_mutex); |
184 | pthread_mutex_unlock (&coro_mutex); |
186 | |
185 | |
187 | return 0; |
186 | return 0; |
188 | } |
187 | } |
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188 | |
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189 | asm(""); |
189 | |
190 | |
190 | void coro_transfer(coro_context *prev, coro_context *next) |
191 | void coro_transfer(coro_context *prev, coro_context *next) |
191 | { |
192 | { |
192 | pthread_cond_init (&prev->c, 0); |
193 | pthread_cond_init (&prev->c, 0); |
193 | pthread_cond_signal (&next->c); |
194 | pthread_cond_signal (&next->c); |
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324 | ctx->env[JB_SP] = (__uint64_t)STACK_ADJUST_PTR (sptr, ssize); |
325 | ctx->env[JB_SP] = (__uint64_t)STACK_ADJUST_PTR (sptr, ssize); |
325 | |
326 | |
326 | # elif CORO_ASM |
327 | # elif CORO_ASM |
327 | |
328 | |
328 | ctx->sp = (volatile void **)(ssize + (char *)sptr); |
329 | ctx->sp = (volatile void **)(ssize + (char *)sptr); |
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330 | /* we try to allow for both functions with and without frame pointers */ |
329 | *--ctx->sp = (void *)coro_init; |
331 | *--ctx->sp = (void *)coro_init; |
330 | *--ctx->sp = (void *)coro_init; // this is needed when the prologue saves ebp |
332 | { |
331 | ctx->sp -= NUM_SAVED; |
333 | int i; |
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334 | for (i = NUM_SAVED; i--; ) |
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335 | *--ctx->sp = 0; |
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336 | } |
332 | |
337 | |
333 | # endif |
338 | # endif |
334 | |
339 | |
335 | coro_transfer ((coro_context *)create_coro, (coro_context *)new_coro); |
340 | coro_transfer ((coro_context *)create_coro, (coro_context *)new_coro); |
336 | |
341 | |