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Comparing libcoro/coro.c (file contents):
Revision 1.8 by root, Sun Sep 16 01:34:36 2001 UTC vs.
Revision 1.20 by root, Thu Oct 26 05:20:47 2006 UTC

1/* 1/*
2 * Copyright (c) 2001 Marc Alexander Lehmann <pcg@goof.com> 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,
… …
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)
43# elif __amd64__ && CORO_LINUX
44# define STACK_ADJUST_PTR(sp,ss) ((char *)(sp) + (ss) - 8)
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
52#if CORO_UCONTEXT
53# include <stddef.h>
54#endif
55
49#if CORO_SJLJ || CORO_LOOSE || CORO_LINUX || CORO_IRIX 56#if CORO_SJLJ || CORO_LOSER || CORO_LINUX || CORO_IRIX
50 57
58#include <stdlib.h>
59
60#if CORO_SJLJ
61# include <stdio.h>
51#include <signal.h> 62# include <signal.h>
63# include <unistd.h>
64#endif
52 65
53static volatile coro_func coro_init_func; 66static volatile coro_func coro_init_func;
54static volatile void *coro_init_arg; 67static volatile void *coro_init_arg;
55static volatile coro_context *new_coro, *create_coro; 68static volatile coro_context *new_coro, *create_coro;
56 69
… …
72 85
73static volatile int trampoline_count; 86static volatile int trampoline_count;
74 87
75/* trampoline signal handler */ 88/* trampoline signal handler */
76static void 89static void
77trampoline(int sig) 90trampoline (int sig)
78{ 91{
79 if (setjmp (((coro_context *)new_coro)->env)) 92 if (setjmp (((coro_context *)new_coro)->env))
80 coro_init (); /* start it */ 93 coro_init (); /* start it */
81 else 94 else
82 trampoline_count++; 95 trampoline_count++;
… …
94#if CORO_UCONTEXT 107#if CORO_UCONTEXT
95 108
96 getcontext (&(ctx->uc)); 109 getcontext (&(ctx->uc));
97 110
98 ctx->uc.uc_link = 0; 111 ctx->uc.uc_link = 0;
99 ctx->uc.uc_stack.ss_sp = STACK_ADJUST_PTR(sptr,ssize); 112 ctx->uc.uc_stack.ss_sp = STACK_ADJUST_PTR (sptr,ssize);
100 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);
101 ctx->uc.uc_stack.ss_flags = 0; 114 ctx->uc.uc_stack.ss_flags = 0;
102 115
103 makecontext (&(ctx->uc), (void (*)()) coro, 1, arg); 116 makecontext (&(ctx->uc), (void (*)()) coro, 1, arg);
104 117
105#elif CORO_SJLJ || CORO_LOOSE || CORO_LINUX || CORO_IRIX 118#elif CORO_SJLJ || CORO_LOSER || CORO_LINUX || CORO_IRIX
106 119
107# if CORO_SJLJ 120# if CORO_SJLJ
108 stack_t ostk, nstk; 121 stack_t ostk, nstk;
109 struct sigaction osa, nsa; 122 struct sigaction osa, nsa;
110 sigset_t nsig, osig; 123 sigset_t nsig, osig;
… …
130 143
131 if (sigaction (SIGUSR2, &nsa, &osa)) 144 if (sigaction (SIGUSR2, &nsa, &osa))
132 perror ("sigaction"); 145 perror ("sigaction");
133 146
134 /* set the new stack */ 147 /* set the new stack */
135 nstk.ss_sp = STACK_ADJUST(sptr,ssize); /* yes, some platforms (IRIX) get this wrong. */ 148 nstk.ss_sp = STACK_ADJUST_PTR (sptr,ssize); /* yes, some platforms (IRIX) get this wrong. */
136 nstk.ss_size = STACK_ADJUST_SIZE (sptr,ssize); 149 nstk.ss_size = STACK_ADJUST_SIZE (sptr,ssize);
137 nstk.ss_flags = 0; 150 nstk.ss_flags = 0;
138 151
139 if (sigaltstack (&nstk, &ostk) < 0) 152 if (sigaltstack (&nstk, &ostk) < 0)
140 perror ("sigaltstack"); 153 perror ("sigaltstack");
… …
156 abort (); 169 abort ();
157 170
158 if (~ostk.ss_flags & SS_DISABLE) 171 if (~ostk.ss_flags & SS_DISABLE)
159 sigaltstack (&ostk, 0); 172 sigaltstack (&ostk, 0);
160 173
161 sigaction (SIGUSR1, &osa, 0); 174 sigaction (SIGUSR2, &osa, 0);
162 175
163 sigprocmask (SIG_SETMASK, &osig, 0); 176 sigprocmask (SIG_SETMASK, &osig, 0);
164 177
165# elif CORO_LOOSE 178# elif CORO_LOSER
166 179
167 setjmp (ctx->env); 180 setjmp (ctx->env);
168 ctx->env[7] = (int)((char *)sptr + ssize); 181 ctx->env[7] = (long)((char *)sptr + ssize);
169 ctx->env[8] = (int)coro_init; 182 ctx->env[8] = (long)coro_init;
170 183
171# elif CORO_LINUX 184# elif CORO_LINUX
172 185
173 setjmp (ctx->env); 186 setjmp (ctx->env);
174#if defined(__GLIBC__) && defined(__GLIBC_MINOR__) \ 187#if defined(__GLIBC__) && defined(__GLIBC_MINOR__) \
175 && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined(JB_PC) && defined(JB_SP) 188 && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined(JB_PC) && defined(JB_SP)
176 ctx->env[0].__jmpbuf[JB_PC] = (int)coro_init; 189 ctx->env[0].__jmpbuf[JB_PC] = (long)coro_init;
177 ctx->env[0].__jmpbuf[JB_SP] = (int)STACK_ADJUST_PTR(sptr,ssize); 190 ctx->env[0].__jmpbuf[JB_SP] = (long)STACK_ADJUST_PTR (sptr,ssize);
178#elif defined(__GLIBC__) && defined(__GLIBC_MINOR__) \ 191#elif defined(__GLIBC__) && defined(__GLIBC_MINOR__) \
179 && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined(__mc68000__) 192 && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined(__mc68000__)
180 ctx->env[0].__jmpbuf[0].__aregs[0] = (long int)coro_init; 193 ctx->env[0].__jmpbuf[0].__aregs[0] = (long int)coro_init;
181 ctx->env[0].__jmpbuf[0].__sp = (int *)((char *)sptr + ssize); 194 ctx->env[0].__jmpbuf[0].__sp = (int *)((char *)sptr + ssize);
182#elif defined(__GNU_LIBRARY__) && defined(__i386__) 195#elif defined(__GNU_LIBRARY__) && defined(__i386__)
183 ctx->env[0].__jmpbuf[0].__pc = (char *)coro_init; 196 ctx->env[0].__jmpbuf[0].__pc = (char *)coro_init;
184 ctx->env[0].__jmpbuf[0].__sp = (void *)((char *)sptr + ssize); 197 ctx->env[0].__jmpbuf[0].__sp = (void *)((char *)sptr + ssize);
198#elif defined(__GNU_LIBRARY__) && defined(__amd64__)
199 ctx->env[0].__jmpbuf[JB_PC] = (long)coro_init;
200 ctx->env[0].__jmpbuf[JB_RSP] = (long)STACK_ADJUST_PTR (sptr,ssize);
185#else 201#else
186#error "linux libc or architecture not supported" 202#error "linux libc or architecture not supported"
187#endif 203#endif
188 204
189# elif CORO_IRIX 205# elif CORO_IRIX
190 206
191 setjmp (ctx->env); 207 setjmp (ctx->env);
192 ctx->env[JB_PC] = (__uint64_t)coro_init; 208 ctx->env[JB_PC] = (__uint64_t)coro_init;
193 ctx->env[JB_SP] = (__uint64_t)STACK_ADJUST_PTR(sptr,ssize); 209 ctx->env[JB_SP] = (__uint64_t)STACK_ADJUST_PTR (sptr,ssize);
194 210
195# endif 211# endif
196 212
197 coro_transfer ((coro_context *)create_coro, (coro_context *)new_coro); 213 coro_transfer ((coro_context *)create_coro, (coro_context *)new_coro);
198 214

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