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Comparing libcoro/coro.c (file contents):
Revision 1.5 by root, Mon Sep 3 02:50:18 2001 UTC vs.
Revision 1.17 by root, Tue Aug 30 21:32:17 2005 UTC

1/* 1/*
2 * Copyright (c) 2001 Marc Alexander Lehmann <pcg@goof.com> 2 * Copyright (c) 2001-2005 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,
… …
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_SJLJ || CORO_LOOSE || CORO_LINUX || CORO_IRIX 35#if !defined(STACK_ADJUST_PTR)
36
37/* IRIX is decidedly NON-unix */ 36/* IRIX is decidedly NON-unix */
38#if __sgi 37# if __sgi
39# define STACK_ADJUST(sp,ss) ((ss) - sizeof (long) + (char *)(sp)) 38# define STACK_ADJUST_PTR(sp,ss) ((char *)(sp) + (ss) - 8)
40#else 39# define STACK_ADJUST_SIZE(sp,ss) ((ss) - 8)
40# elif __i386__ && CORO_LINUX
41# define STACK_ADJUST_PTR(sp,ss) ((char *)(sp) + (ss))
41# define STACK_ADJUST(sp,ss) (ss) 42# define STACK_ADJUST_SIZE(sp,ss) (ss)
43# else
44# define STACK_ADJUST_PTR(sp,ss) (sp)
45# define STACK_ADJUST_SIZE(sp,ss) (ss)
42#endif 46# endif
47#endif
43 48
49#if CORO_SJLJ || CORO_LOSER || CORO_LINUX || CORO_IRIX
50
51#include <stdlib.h>
52
53#if CORO_SJLJ
54# include <stdio.h>
44#include <signal.h> 55# include <signal.h>
56# include <unistd.h>
57#endif
45 58
46static volatile coro_func coro_init_func; 59static volatile coro_func coro_init_func;
47static volatile void *coro_init_arg; 60static volatile void *coro_init_arg;
48static volatile coro_context *new_coro, *create_coro; 61static volatile coro_context *new_coro, *create_coro;
49 62
… …
65 78
66static volatile int trampoline_count; 79static volatile int trampoline_count;
67 80
68/* trampoline signal handler */ 81/* trampoline signal handler */
69static void 82static void
70trampoline(int sig) 83trampoline (int sig)
71{ 84{
72 if (setjmp (((coro_context *)new_coro)->env)) 85 if (setjmp (((coro_context *)new_coro)->env))
73 coro_init (); /* start it */ 86 coro_init (); /* start it */
74 else 87 else
75 trampoline_count++; 88 trampoline_count++;
… …
87#if CORO_UCONTEXT 100#if CORO_UCONTEXT
88 101
89 getcontext (&(ctx->uc)); 102 getcontext (&(ctx->uc));
90 103
91 ctx->uc.uc_link = 0; 104 ctx->uc.uc_link = 0;
92 ctx->uc.uc_stack.ss_sp = STACK_ADJUST(sptr,ssize); 105 ctx->uc.uc_stack.ss_sp = STACK_ADJUST_PTR (sptr,ssize);
93 ctx->uc.uc_stack.ss_size = (size_t) ssize; 106 ctx->uc.uc_stack.ss_size = (size_t) STACK_ADJUST_SIZE (sptr,ssize);
94 ctx->uc.uc_stack.ss_flags = 0; 107 ctx->uc.uc_stack.ss_flags = 0;
95 108
96 makecontext (&(ctx->uc), (void (*)()) coro, 1, arg); 109 makecontext (&(ctx->uc), (void (*)()) coro, 1, arg);
97 110
98#elif CORO_SJLJ || CORO_LOOSE || CORO_LINUX || CORO_IRIX 111#elif CORO_SJLJ || CORO_LOSER || CORO_LINUX || CORO_IRIX
99 112
100# if CORO_SJLJ 113# if CORO_SJLJ
101 stack_t ostk, nstk; 114 stack_t ostk, nstk;
102 struct sigaction osa, nsa; 115 struct sigaction osa, nsa;
103 sigset_t nsig, osig; 116 sigset_t nsig, osig;
… …
123 136
124 if (sigaction (SIGUSR2, &nsa, &osa)) 137 if (sigaction (SIGUSR2, &nsa, &osa))
125 perror ("sigaction"); 138 perror ("sigaction");
126 139
127 /* set the new stack */ 140 /* set the new stack */
128 nstk.ss_sp = STACK_ADJUST(sptr,ssize); /* yes, some platforms (IRIX) get this wrong. */ 141 nstk.ss_sp = STACK_ADJUST_PTR (sptr,ssize); /* yes, some platforms (IRIX) get this wrong. */
129 nstk.ss_size = ssize; 142 nstk.ss_size = STACK_ADJUST_SIZE (sptr,ssize);
130 nstk.ss_flags = 0; 143 nstk.ss_flags = 0;
131 144
132 if (sigaltstack (&nstk, &ostk) < 0) 145 if (sigaltstack (&nstk, &ostk) < 0)
133 perror ("sigaltstack"); 146 perror ("sigaltstack");
134 147
… …
153 166
154 sigaction (SIGUSR1, &osa, 0); 167 sigaction (SIGUSR1, &osa, 0);
155 168
156 sigprocmask (SIG_SETMASK, &osig, 0); 169 sigprocmask (SIG_SETMASK, &osig, 0);
157 170
158# elif CORO_LOOSE 171# elif CORO_LOSER
159 172
160 setjmp (ctx->env); 173 setjmp (ctx->env);
161 ctx->env[7] = (int)((char *)sptr + ssize); 174 ctx->env[7] = (long)((char *)sptr + ssize);
162 ctx->env[8] = (int)coro_init; 175 ctx->env[8] = (long)coro_init;
163 176
164# elif CORO_LINUX 177# elif CORO_LINUX
165 178
166 setjmp (ctx->env); 179 setjmp (ctx->env);
167#if defined(__GLIBC__) && defined(__GLIBC_MINOR__) \ 180#if defined(__GLIBC__) && defined(__GLIBC_MINOR__) \
168 && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined(JB_PC) && defined(JB_SP) 181 && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined(JB_PC) && defined(JB_SP)
169 ctx->env[0].__jmpbuf[JB_PC] = (int)coro_init; 182 ctx->env[0].__jmpbuf[JB_PC] = (long)coro_init;
170 ctx->env[0].__jmpbuf[JB_SP] = (int)((char *)sptr + ssize); 183 ctx->env[0].__jmpbuf[JB_SP] = (long)STACK_ADJUST_PTR (sptr,ssize);
171#elif defined(__GLIBC__) && defined(__GLIBC_MINOR__) \ 184#elif defined(__GLIBC__) && defined(__GLIBC_MINOR__) \
172 && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined(__mc68000__) 185 && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined(__mc68000__)
173 ctx->env[0].__jmpbuf[0].__aregs[0] = (long int)coro_init; 186 ctx->env[0].__jmpbuf[0].__aregs[0] = (long int)coro_init;
174 ctx->env[0].__jmpbuf[0].__sp = (int *)((char *)sptr + ssize); 187 ctx->env[0].__jmpbuf[0].__sp = (int *)((char *)sptr + ssize);
175#elif defined(__GNU_LIBRARY__) && defined(__i386__) 188#elif defined(__GNU_LIBRARY__) && defined(__i386__)
176 ctx->env[0].__jmpbuf[0].__pc = (char *)coro_init; 189 ctx->env[0].__jmpbuf[0].__pc = (char *)coro_init;
177 ctx->env[0].__jmpbuf[0].__sp = (void *)((char *)sptr + ssize); 190 ctx->env[0].__jmpbuf[0].__sp = (void *)((char *)sptr + ssize);
191#elif defined(__GNU_LIBRARY__) && defined(__amd64__)
192 ctx->env[0].__jmpbuf[JB_PC] = (long)coro_init;
193 ctx->env[0].__jmpbuf[JB_RSP] = (long)((char *)sptr + ssize);
178#else 194#else
179#error "linux libc or architecture not supported" 195#error "linux libc or architecture not supported"
180#endif 196#endif
181 197
182# elif CORO_IRIX 198# elif CORO_IRIX
183 199
184 setjmp (ctx->env); 200 setjmp (ctx->env);
185 ctx->env[JB_PC] = (int)coro_init; 201 ctx->env[JB_PC] = (__uint64_t)coro_init;
186 ctx->env[JB_SP] = (int)((char *)sptr + ssize); 202 ctx->env[JB_SP] = (__uint64_t)STACK_ADJUST_PTR (sptr,ssize);
187 203
188# endif 204# endif
189 205
190 coro_transfer ((coro_context *)create_coro, (coro_context *)new_coro); 206 coro_transfer ((coro_context *)create_coro, (coro_context *)new_coro);
191 207

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