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Comparing libcoro/coro.c (file contents):
Revision 1.54 by root, Fri Dec 3 20:01:34 2010 UTC vs.
Revision 1.58 by root, Fri Jun 10 12:27:02 2011 UTC

1/* 1/*
2 * Copyright (c) 2001-2009 Marc Alexander Lehmann <schmorp@schmorp.de> 2 * Copyright (c) 2001-2011 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,
… …
86 volatile coro_func func = coro_init_func; 86 volatile coro_func func = coro_init_func;
87 volatile void *arg = coro_init_arg; 87 volatile void *arg = coro_init_arg;
88 88
89 coro_transfer (new_coro, create_coro); 89 coro_transfer (new_coro, create_coro);
90 90
91#if __linux && __amd64
92 /* we blindly assume on any __linux with __amd64 we have a new enough gas with .cfi_undefined support */
93 asm (".cfi_undefined rip");
94#endif
95
91 func ((void *)arg); 96 func ((void *)arg);
92 97
93 /* the new coro returned. bad. just abort() for now */ 98 /* the new coro returned. bad. just abort() for now */
94 abort (); 99 abort ();
95} 100}
… …
118 ".type coro_transfer, @function\n" 123 ".type coro_transfer, @function\n"
119 "coro_transfer:\n" 124 "coro_transfer:\n"
120 /* windows, of course, gives a shit on the amd64 ABI and uses different registers */ 125 /* windows, of course, gives a shit on the amd64 ABI and uses different registers */
121 /* http://blogs.msdn.com/freik/archive/2005/03/17/398200.aspx */ 126 /* http://blogs.msdn.com/freik/archive/2005/03/17/398200.aspx */
122 #if __amd64 127 #if __amd64
128 #ifdef _WIN32
123 #define NUM_SAVED 6 129 #define NUM_SAVED 8
130 "\tpush %rsi\n"
131 "\tpush %rdi\n"
124 "\tpush %rbp\n" 132 "\tpush %rbp\n"
125 "\tpush %rbx\n" 133 "\tpush %rbx\n"
126 "\tpush %r12\n" 134 "\tpush %r12\n"
127 "\tpush %r13\n" 135 "\tpush %r13\n"
128 "\tpush %r14\n" 136 "\tpush %r14\n"
129 "\tpush %r15\n" 137 "\tpush %r15\n"
130 #if CORO_WIN_TIB 138 #if CORO_WIN_TIB
131 "\tpush %gs:0x0\n" 139 "\tpush %gs:0x0\n"
132 "\tpush %gs:0x8\n" 140 "\tpush %gs:0x8\n"
133 "\tpush %gs:0xc\n" 141 "\tpush %gs:0xc\n"
142 #endif
143 "\tmov %rsp, (%rcx)\n"
144 "\tmov (%rdx), %rsp\n"
145 #if CORO_WIN_TIB
146 "\tpop %gs:0xc\n"
147 "\tpop %gs:0x8\n"
148 "\tpop %gs:0x0\n"
149 #endif
150 "\tpop %r15\n"
151 "\tpop %r14\n"
152 "\tpop %r13\n"
153 "\tpop %r12\n"
154 "\tpop %rbx\n"
155 "\tpop %rbp\n"
156 "\tpop %rdi\n"
157 "\tpop %rsi\n"
158 #else
159 #define NUM_SAVED 6
160 "\tpush %rbp\n"
161 "\tpush %rbx\n"
162 "\tpush %r12\n"
163 "\tpush %r13\n"
164 "\tpush %r14\n"
165 "\tpush %r15\n"
166 "\tmov %rsp, (%rdi)\n"
167 "\tmov (%rsi), %rsp\n"
168 "\tpop %r15\n"
169 "\tpop %r14\n"
170 "\tpop %r13\n"
171 "\tpop %r12\n"
172 "\tpop %rbx\n"
173 "\tpop %rbp\n"
134 #endif 174 #endif
135 "\tmov %rsp, (%rdi)\n"
136 "\tmov (%rsi), %rsp\n"
137 #if CORO_WIN_TIB
138 "\tpop %gs:0xc\n"
139 "\tpop %gs:0x8\n"
140 "\tpop %gs:0x0\n"
141 #endif
142 "\tpop %r15\n"
143 "\tpop %r14\n"
144 "\tpop %r13\n"
145 "\tpop %r12\n"
146 "\tpop %rbx\n"
147 "\tpop %rbp\n"
148 #elif __i386 175 #elif __i386
149 #define NUM_SAVED 4 176 #define NUM_SAVED 4
150 "\tpush %ebp\n" 177 "\tpush %ebp\n"
151 "\tpush %ebx\n" 178 "\tpush %ebx\n"
152 "\tpush %esi\n" 179 "\tpush %esi\n"
… …
154 #if CORO_WIN_TIB 181 #if CORO_WIN_TIB
155 "\tpush %fs:0\n" 182 "\tpush %fs:0\n"
156 "\tpush %fs:4\n" 183 "\tpush %fs:4\n"
157 "\tpush %fs:8\n" 184 "\tpush %fs:8\n"
158 #endif 185 #endif
159 "\tmov %esp, (%eax)\n" 186 "\tmov %esp, (%eax)\n"
160 "\tmov (%edx), %esp\n" 187 "\tmov (%edx), %esp\n"
161 #if CORO_WIN_TIB 188 #if CORO_WIN_TIB
162 "\tpop %fs:8\n" 189 "\tpop %fs:8\n"
163 "\tpop %fs:4\n" 190 "\tpop %fs:4\n"
164 "\tpop %fs:0\n" 191 "\tpop %fs:0\n"
165 #endif 192 #endif
166 "\tpop %edi\n" 193 "\tpop %edi\n"
167 "\tpop %esi\n" 194 "\tpop %esi\n"
168 "\tpop %ebx\n" 195 "\tpop %ebx\n"
169 "\tpop %ebp\n" 196 "\tpop %ebp\n"
170 #else 197 #else
171 #error unsupported architecture 198 #error unsupported architecture
172 #endif 199 #endif
173 "\tret\n" 200 "\tret\n"
174 ); 201 );
… …
305 *--ctx->sp = (char *)sptr + ssize; /* StackBase */ 332 *--ctx->sp = (char *)sptr + ssize; /* StackBase */
306 *--ctx->sp = sptr; /* StackLimit */ 333 *--ctx->sp = sptr; /* StackLimit */
307 #endif 334 #endif
308 335
309 ctx->sp -= NUM_SAVED; 336 ctx->sp -= NUM_SAVED;
337 memset (ctx->sp, 0, sizeof (*ctx->sp) * NUM_SAVED);
310 338
311# elif CORO_UCONTEXT 339# elif CORO_UCONTEXT
312 340
313 getcontext (&(ctx->uc)); 341 getcontext (&(ctx->uc));
314 342

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