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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 1.15 by root, Mon Mar 21 14:35:22 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 !defined(STACK_ADJUST_PTR)
36/* IRIX is decidedly NON-unix */
37# if __sgi
38# define STACK_ADJUST_PTR(sp,ss) ((char *)(sp) + (ss) - 8)
39# define STACK_ADJUST_SIZE(sp,ss) ((ss) - 8)
40# elif __i386__ && CORO_LINUX
41# define STACK_ADJUST_PTR(sp,ss) ((char *)(sp) + (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)
46# endif
47#endif
48
35#if CORO_SJLJ || CORO_LOOSE || CORO_LINUX || CORO_IRIX 49#if CORO_SJLJ || CORO_LOOSE || CORO_LINUX || CORO_IRIX
36 50
37/* IRIX is decidedly NON-unix */ 51#if CORO_SJLJ
38#if __sgi 52# include <stdio.h>
39# define STACK_ADJUST(sp,ss) ((ss) - sizeof (long) + (char *)(sp))
40#else
41# define STACK_ADJUST(sp,ss) (ss)
42#endif
43
44#include <signal.h> 53# include <signal.h>
54#endif
45 55
46static volatile coro_func coro_init_func; 56static volatile coro_func coro_init_func;
47static volatile void *coro_init_arg; 57static volatile void *coro_init_arg;
48static volatile coro_context *new_coro, *create_coro; 58static volatile coro_context *new_coro, *create_coro;
49 59
… …
65 75
66static volatile int trampoline_count; 76static volatile int trampoline_count;
67 77
68/* trampoline signal handler */ 78/* trampoline signal handler */
69static void 79static void
70trampoline(int sig) 80trampoline (int sig)
71{ 81{
72 if (setjmp (((coro_context *)new_coro)->env)) 82 if (setjmp (((coro_context *)new_coro)->env))
73 coro_init (); /* start it */ 83 coro_init (); /* start it */
74 else 84 else
75 trampoline_count++; 85 trampoline_count++;
… …
87#if CORO_UCONTEXT 97#if CORO_UCONTEXT
88 98
89 getcontext (&(ctx->uc)); 99 getcontext (&(ctx->uc));
90 100
91 ctx->uc.uc_link = 0; 101 ctx->uc.uc_link = 0;
92 ctx->uc.uc_stack.ss_sp = STACK_ADJUST(sptr,ssize); 102 ctx->uc.uc_stack.ss_sp = STACK_ADJUST_PTR (sptr,ssize);
93 ctx->uc.uc_stack.ss_size = (size_t) ssize; 103 ctx->uc.uc_stack.ss_size = (size_t) STACK_ADJUST_SIZE (sptr,ssize);
94 ctx->uc.uc_stack.ss_flags = 0; 104 ctx->uc.uc_stack.ss_flags = 0;
95 105
96 makecontext (&(ctx->uc), (void (*)()) coro, 1, arg); 106 makecontext (&(ctx->uc), (void (*)()) coro, 1, arg);
97 107
98#elif CORO_SJLJ || CORO_LOOSE || CORO_LINUX || CORO_IRIX 108#elif CORO_SJLJ || CORO_LOOSE || CORO_LINUX || CORO_IRIX
… …
123 133
124 if (sigaction (SIGUSR2, &nsa, &osa)) 134 if (sigaction (SIGUSR2, &nsa, &osa))
125 perror ("sigaction"); 135 perror ("sigaction");
126 136
127 /* set the new stack */ 137 /* set the new stack */
128 nstk.ss_sp = STACK_ADJUST(sptr,ssize); /* yes, some platforms (IRIX) get this wrong. */ 138 nstk.ss_sp = STACK_ADJUST_PTR (sptr,ssize); /* yes, some platforms (IRIX) get this wrong. */
129 nstk.ss_size = ssize; 139 nstk.ss_size = STACK_ADJUST_SIZE (sptr,ssize);
130 nstk.ss_flags = 0; 140 nstk.ss_flags = 0;
131 141
132 if (sigaltstack (&nstk, &ostk) < 0) 142 if (sigaltstack (&nstk, &ostk) < 0)
133 perror ("sigaltstack"); 143 perror ("sigaltstack");
134 144
… …
156 sigprocmask (SIG_SETMASK, &osig, 0); 166 sigprocmask (SIG_SETMASK, &osig, 0);
157 167
158# elif CORO_LOOSE 168# elif CORO_LOOSE
159 169
160 setjmp (ctx->env); 170 setjmp (ctx->env);
161 ctx->env[7] = (int)((char *)sptr + ssize); 171 ctx->env[7] = (long)((char *)sptr + ssize);
162 ctx->env[8] = (int)coro_init; 172 ctx->env[8] = (long)coro_init;
163 173
164# elif CORO_LINUX 174# elif CORO_LINUX
165 175
166 setjmp (ctx->env); 176 setjmp (ctx->env);
167#if defined(__GLIBC__) && defined(__GLIBC_MINOR__) \ 177#if defined(__GLIBC__) && defined(__GLIBC_MINOR__) \
168 && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined(JB_PC) && defined(JB_SP) 178 && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined(JB_PC) && defined(JB_SP)
169 ctx->env[0].__jmpbuf[JB_PC] = (int)coro_init; 179 ctx->env[0].__jmpbuf[JB_PC] = (long)coro_init;
170 ctx->env[0].__jmpbuf[JB_SP] = (int)((char *)sptr + ssize); 180 ctx->env[0].__jmpbuf[JB_SP] = (long)STACK_ADJUST_PTR (sptr,ssize);
171#elif defined(__GLIBC__) && defined(__GLIBC_MINOR__) \ 181#elif defined(__GLIBC__) && defined(__GLIBC_MINOR__) \
172 && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined(__mc68000__) 182 && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined(__mc68000__)
173 ctx->env[0].__jmpbuf[0].__aregs[0] = (long int)coro_init; 183 ctx->env[0].__jmpbuf[0].__aregs[0] = (long int)coro_init;
174 ctx->env[0].__jmpbuf[0].__sp = (int *)((char *)sptr + ssize); 184 ctx->env[0].__jmpbuf[0].__sp = (int *)((char *)sptr + ssize);
175#elif defined(__GNU_LIBRARY__) && defined(__i386__) 185#elif defined(__GNU_LIBRARY__) && defined(__i386__)
176 ctx->env[0].__jmpbuf[0].__pc = (char *)coro_init; 186 ctx->env[0].__jmpbuf[0].__pc = (char *)coro_init;
177 ctx->env[0].__jmpbuf[0].__sp = (void *)((char *)sptr + ssize); 187 ctx->env[0].__jmpbuf[0].__sp = (void *)((char *)sptr + ssize);
188#elif defined(__GNU_LIBRARY__) && defined(__amd64__)
189 ctx->env[0].__jmpbuf[JB_PC] = (long)coro_init;
190 ctx->env[0].__jmpbuf[JB_RSP] = (long)((char *)sptr + ssize);
178#else 191#else
179#error "linux libc or architecture not supported" 192#error "linux libc or architecture not supported"
180#endif 193#endif
181 194
182# elif CORO_IRIX 195# elif CORO_IRIX
183 196
184 setjmp (ctx->env); 197 setjmp (ctx->env);
185 ctx->env[JB_PC] = (int)coro_init; 198 ctx->env[JB_PC] = (__uint64_t)coro_init;
186 ctx->env[JB_SP] = (int)((char *)sptr + ssize); 199 ctx->env[JB_SP] = (__uint64_t)STACK_ADJUST_PTR (sptr,ssize);
187 200
188# endif 201# endif
189 202
190 coro_transfer ((coro_context *)create_coro, (coro_context *)new_coro); 203 coro_transfer ((coro_context *)create_coro, (coro_context *)new_coro);
191 204

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