[ViewVC] Diff of: cvs/libcoro/coro.c

Comparing libcoro/coro.c (file contents):
Revision 1.29 by root, Sun Mar 2 16:10:22 2008 UTC vs.
Revision 1.58 by root, Fri Jun 10 12:27:02 2011 UTC

…		…
1	/*	1	/*
2	* Copyright (c) 2001-2008 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,
38	* go to Ralf S. Engelschall <rse@engelschall.com>.	38	* go to Ralf S. Engelschall <rse@engelschall.com>.
39	*/	39	*/
40		40
41	#include "coro.h"	41	#include "coro.h"
42		42
		43	#include <string.h>
		44
		45	/*****************************************************************************/
		46	/* ucontext/setjmp/asm backends */
		47	/*****************************************************************************/
		48	#if CORO_UCONTEXT \|\| CORO_SJLJ \|\| CORO_LOSER \|\| CORO_LINUX \|\| CORO_IRIX \|\| CORO_ASM
		49
		50	# if CORO_UCONTEXT
		51	# include <stddef.h>
		52	# endif
		53
43	#if !defined(STACK_ADJUST_PTR)	54	# if !defined(STACK_ADJUST_PTR)
		55	# if __sgi
44	/* IRIX is decidedly NON-unix */	56	/* IRIX is decidedly NON-unix */
45	# if __sgi
46	# define STACK_ADJUST_PTR(sp,ss) ((char *)(sp) + (ss) - 8)	57	# define STACK_ADJUST_PTR(sp,ss) ((char *)(sp) + (ss) - 8)
47	# define STACK_ADJUST_SIZE(sp,ss) ((ss) - 8)	58	# define STACK_ADJUST_SIZE(sp,ss) ((ss) - 8)
48	# elif __i386__ && CORO_LINUX	59	# elif (__i386__ && CORO_LINUX) \|\| (_M_IX86 && CORO_LOSER)
49	# define STACK_ADJUST_PTR(sp,ss) ((char *)(sp) + (ss))	60	# define STACK_ADJUST_PTR(sp,ss) ((char *)(sp) + (ss))
50	# define STACK_ADJUST_SIZE(sp,ss) (ss)	61	# define STACK_ADJUST_SIZE(sp,ss) (ss)
51	# elif __amd64__ && CORO_LINUX	62	# elif (__amd64__ && CORO_LINUX) \|\| ((_M_AMD64 \|\| _M_IA64) && CORO_LOSER)
52	# define STACK_ADJUST_PTR(sp,ss) ((char *)(sp) + (ss) - 8)	63	# define STACK_ADJUST_PTR(sp,ss) ((char *)(sp) + (ss) - 8)
53	# define STACK_ADJUST_SIZE(sp,ss) (ss)	64	# define STACK_ADJUST_SIZE(sp,ss) (ss)
54	# else	65	# else
55	# define STACK_ADJUST_PTR(sp,ss) (sp)	66	# define STACK_ADJUST_PTR(sp,ss) (sp)
56	# define STACK_ADJUST_SIZE(sp,ss) (ss)	67	# define STACK_ADJUST_SIZE(sp,ss) (ss)
57	# endif	68	# endif
58	#endif	69	# endif
59		70
60	#if CORO_UCONTEXT
61	# include <stddef.h>
62	#endif
63
64	#if CORO_SJLJ \|\| CORO_LOSER \|\| CORO_LINUX \|\| CORO_IRIX \|\| CORO_ASM
65
66	#include <stdlib.h>	71	# include <stdlib.h>
67		72
68	#if CORO_SJLJ	73	# if CORO_SJLJ
69	# include <stdio.h>	74	# include <stdio.h>
70	# include <signal.h>	75	# include <signal.h>
71	# include <unistd.h>	76	# include <unistd.h>
72	#endif	77	# endif
73		78
74	static volatile coro_func coro_init_func;	79	static coro_func coro_init_func;
75	static volatile void *coro_init_arg;	80	static void *coro_init_arg;
76	static volatile coro_context new_coro, create_coro;	81	static coro_context new_coro, create_coro;
77
78	/* what we really want to detect here is wether we use a new-enough version of GAS */
79	/* instead, check for gcc 3, ELF and GNU/Linux and hope for the best */
80	#if __GNUC__ >= 3 && __ELF__ && __linux__
81	# define HAVE_CFI 1
82	#endif
83		82
84	static void	83	static void
85	coro_init (void)	84	coro_init (void)
86	{	85	{
87	volatile coro_func func = coro_init_func;	86	volatile coro_func func = coro_init_func;
88	volatile void *arg = coro_init_arg;	87	volatile void *arg = coro_init_arg;
89		88
90	coro_transfer ((coro_context )new_coro, (coro_context )create_coro);	89	coro_transfer (new_coro, create_coro);
		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
91		95
92	func ((void *)arg);	96	func ((void *)arg);
93		97
94	/* the new coro returned. bad. just abort() for now */	98	/* the new coro returned. bad. just abort() for now */
95	abort ();	99	abort ();
96	}	100	}
97		101
98	# if CORO_SJLJ	102	# if CORO_SJLJ
99		103
100	static volatile int trampoline_count;	104	static volatile int trampoline_done;
101		105
102	/* trampoline signal handler */	106	/* trampoline signal handler */
103	static void	107	static void
104	trampoline (int sig)	108	trampoline (int sig)
105	{	109	{
106	if (setjmp (((coro_context *)new_coro)->env))	110	if (coro_setjmp (new_coro->env))
107	{
108	#if HAVE_CFI
109	asm (".cfi_startproc");
110	#endif
111	coro_init (); /* start it */	111	coro_init (); /* start it */
112	#if HAVE_CFI
113	asm (".cfi_endproc");
114	#endif
115	}
116	else	112	else
117	trampoline_count++;	113	trampoline_done = 1;
118	}	114	}
119		115
120	# endif
121
122	#endif	116	# endif
123		117
124	#if CORO_ASM	118	# if CORO_ASM
125	void __attribute__((__noinline__, __fastcall__))	119
126	coro_transfer (struct coro_context prev, struct coro_context next)	120	asm (
127	{	121	".text\n"
128	asm volatile (	122	".globl coro_transfer\n"
		123	".type coro_transfer, @function\n"
		124	"coro_transfer:\n"
		125	/* windows, of course, gives a shit on the amd64 ABI and uses different registers */
		126	/* http://blogs.msdn.com/freik/archive/2005/03/17/398200.aspx */
129	#if __amd64	127	#if __amd64
130	# define NUM_CLOBBERED 5	128	#ifdef _WIN32
		129	#define NUM_SAVED 8
		130	"\tpush %rsi\n"
		131	"\tpush %rdi\n"
		132	"\tpush %rbp\n"
131	"push %%rbx\n\t"	133	"\tpush %rbx\n"
132	"push %%r12\n\t"	134	"\tpush %r12\n"
133	"push %%r13\n\t"	135	"\tpush %r13\n"
134	"push %%r14\n\t"	136	"\tpush %r14\n"
135	"push %%r15\n\t"	137	"\tpush %r15\n"
136	"mov %%rsp, %0\n\t"	138	#if CORO_WIN_TIB
137	"mov %1, %%rsp\n\t"	139	"\tpush %gs:0x0\n"
138	"pop %%r15\n\t"	140	"\tpush %gs:0x8\n"
139	"pop %%r14\n\t"	141	"\tpush %gs:0xc\n"
140	"pop %%r13\n\t"	142	#endif
141	"pop %%r12\n\t"	143	"\tmov %rsp, (%rcx)\n"
142	"pop %%rbx\n\t"	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"
		174	#endif
143	#elif __i386	175	#elif __i386
144	# define NUM_CLOBBERED 4	176	#define NUM_SAVED 4
145	"push %%ebx\n\t"
146	"push %%esi\n\t"
147	"push %%edi\n\t"
148	"push %%ebp\n\t"	177	"\tpush %ebp\n"
149	"mov %%esp, %0\n\t"	178	"\tpush %ebx\n"
150	"mov %1, %%esp\n\t"	179	"\tpush %esi\n"
151	"pop %%ebp\n\t"	180	"\tpush %edi\n"
		181	#if CORO_WIN_TIB
		182	"\tpush %fs:0\n"
		183	"\tpush %fs:4\n"
		184	"\tpush %fs:8\n"
		185	#endif
		186	"\tmov %esp, (%eax)\n"
		187	"\tmov (%edx), %esp\n"
		188	#if CORO_WIN_TIB
		189	"\tpop %fs:8\n"
		190	"\tpop %fs:4\n"
		191	"\tpop %fs:0\n"
		192	#endif
152	"pop %%edi\n\t"	193	"\tpop %edi\n"
153	"pop %%esi\n\t"	194	"\tpop %esi\n"
154	"pop %%ebx\n\t"	195	"\tpop %ebx\n"
155	#else	196	"\tpop %ebp\n"
		197	#else
156	# error unsupported architecture	198	#error unsupported architecture
157	#endif	199	#endif
158	: "=m" (prev->sp)	200	"\tret\n"
159	: "m" (next->sp)
160	);	201	);
161	}	202
162	#endif	203	# endif
163		204
164	/* initialize a machine state */	205	void
165	void coro_create (coro_context *ctx,	206	coro_create (coro_context ctx, coro_func coro, void arg, void *sptr, long ssize)
166	coro_func coro, void *arg,
167	void *sptr, long ssize)
168	{	207	{
169	#if CORO_UCONTEXT	208	coro_context nctx;
170
171	getcontext (&(ctx->uc));
172
173	ctx->uc.uc_link = 0;
174	ctx->uc.uc_stack.ss_sp = STACK_ADJUST_PTR (sptr,ssize);
175	ctx->uc.uc_stack.ss_size = (size_t) STACK_ADJUST_SIZE (sptr,ssize);
176	ctx->uc.uc_stack.ss_flags = 0;
177
178	makecontext (&(ctx->uc), (void (*)()) coro, 1, arg);
179
180	#elif CORO_SJLJ \|\| CORO_LOSER \|\| CORO_LINUX \|\| CORO_IRIX \|\| CORO_ASM
181
182	# if CORO_SJLJ	209	# if CORO_SJLJ
183	stack_t ostk, nstk;	210	stack_t ostk, nstk;
184	struct sigaction osa, nsa;	211	struct sigaction osa, nsa;
185	sigset_t nsig, osig;	212	sigset_t nsig, osig;
186	# endif	213	# endif
187	coro_context nctx;	214
		215	if (!coro)
		216	return;
188		217
189	coro_init_func = coro;	218	coro_init_func = coro;
190	coro_init_arg = arg;	219	coro_init_arg = arg;
191		220
192	new_coro = ctx;	221	new_coro = ctx;
…		…
208	perror ("sigaction");	237	perror ("sigaction");
209	abort ();	238	abort ();
210	}	239	}
211		240
212	/* set the new stack */	241	/* set the new stack */
213	nstk.ss_sp = STACK_ADJUST_PTR (sptr,ssize); /* yes, some platforms (IRIX) get this wrong. */	242	nstk.ss_sp = STACK_ADJUST_PTR (sptr, ssize); /* yes, some platforms (IRIX) get this wrong. */
214	nstk.ss_size = STACK_ADJUST_SIZE (sptr,ssize);	243	nstk.ss_size = STACK_ADJUST_SIZE (sptr, ssize);
215	nstk.ss_flags = 0;	244	nstk.ss_flags = 0;
216		245
217	if (sigaltstack (&nstk, &ostk) < 0)	246	if (sigaltstack (&nstk, &ostk) < 0)
218	{	247	{
219	perror ("sigaltstack");	248	perror ("sigaltstack");
220	abort ();	249	abort ();
221	}	250	}
222		251
223	trampoline_count = 0;	252	trampoline_done = 0;
224	kill (getpid (), SIGUSR2);	253	kill (getpid (), SIGUSR2);
225	sigfillset (&nsig); sigdelset (&nsig, SIGUSR2);	254	sigfillset (&nsig); sigdelset (&nsig, SIGUSR2);
226		255
227	while (!trampoline_count)	256	while (!trampoline_done)
228	sigsuspend (&nsig);	257	sigsuspend (&nsig);
229		258
230	sigaltstack (0, &nstk);	259	sigaltstack (0, &nstk);
231	nstk.ss_flags = SS_DISABLE;	260	nstk.ss_flags = SS_DISABLE;
232	if (sigaltstack (&nstk, 0) < 0)	261	if (sigaltstack (&nstk, 0) < 0)
…		…
238		267
239	if (~ostk.ss_flags & SS_DISABLE)	268	if (~ostk.ss_flags & SS_DISABLE)
240	sigaltstack (&ostk, 0);	269	sigaltstack (&ostk, 0);
241		270
242	sigaction (SIGUSR2, &osa, 0);	271	sigaction (SIGUSR2, &osa, 0);
243
244	sigprocmask (SIG_SETMASK, &osig, 0);	272	sigprocmask (SIG_SETMASK, &osig, 0);
245		273
246	# elif CORO_LOSER	274	# elif CORO_LOSER
247		275
248	setjmp (ctx->env);	276	coro_setjmp (ctx->env);
249	#if __CYGWIN__	277	#if __CYGWIN__ && __i386
250	ctx->env[7] = (long)((char *)sptr + ssize);	278	ctx->env[8] = (long) coro_init;
251	ctx->env[8] = (long)coro_init;	279	ctx->env[7] = (long) ((char *)sptr + ssize) - sizeof (long);
		280	#elif __CYGWIN__ && __x86_64
		281	ctx->env[7] = (long) coro_init;
		282	ctx->env[6] = (long) ((char *)sptr + ssize) - sizeof (long);
		283	#elif defined(__MINGW32__)
		284	ctx->env[5] = (long) coro_init;
		285	ctx->env[4] = (long) ((char *)sptr + ssize) - sizeof (long);
252	#elif defined(_M_IX86)	286	#elif defined(_M_IX86)
253	((_JUMP_BUFFER *)&ctx->env)->Eip = (long)coro_init;	287	((_JUMP_BUFFER *)&ctx->env)->Eip = (long) coro_init;
254	((_JUMP_BUFFER *)&ctx->env)->Esp = (long)STACK_ADJUST_PTR (sptr,ssize);	288	((_JUMP_BUFFER *)&ctx->env)->Esp = (long) STACK_ADJUST_PTR (sptr, ssize) - sizeof (long);
255	#elif defined(_M_AMD64)	289	#elif defined(_M_AMD64)
256	((_JUMP_BUFFER *)&ctx->env)->Rip = (__int64)coro_init;	290	((_JUMP_BUFFER *)&ctx->env)->Rip = (__int64) coro_init;
257	((_JUMP_BUFFER *)&ctx->env)->Rsp = (__int64)STACK_ADJUST_PTR (sptr,ssize);	291	((_JUMP_BUFFER *)&ctx->env)->Rsp = (__int64) STACK_ADJUST_PTR (sptr, ssize) - sizeof (__int64);
258	#elif defined(_M_IA64)	292	#elif defined(_M_IA64)
259	((_JUMP_BUFFER *)&ctx->env)->StIIP = (__int64)coro_init;	293	((_JUMP_BUFFER *)&ctx->env)->StIIP = (__int64) coro_init;
260	((_JUMP_BUFFER *)&ctx->env)->IntSp = (__int64)STACK_ADJUST_PTR (sptr,ssize);	294	((_JUMP_BUFFER *)&ctx->env)->IntSp = (__int64) STACK_ADJUST_PTR (sptr, ssize) - sizeof (__int64);
		295	#else
		296	#error "microsoft libc or architecture not supported"
		297	#endif
		298
		299	# elif CORO_LINUX
		300
		301	coro_setjmp (ctx->env);
		302	#if __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined (JB_PC) && defined (JB_SP)
		303	ctx->env[0].__jmpbuf[JB_PC] = (long) coro_init;
		304	ctx->env[0].__jmpbuf[JB_SP] = (long) STACK_ADJUST_PTR (sptr, ssize) - sizeof (long);
		305	#elif __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined (__mc68000__)
		306	ctx->env[0].__jmpbuf[0].__aregs[0] = (long int)coro_init;
		307	ctx->env[0].__jmpbuf[0].__sp = (int ) ((char )sptr + ssize) - sizeof (long);
		308	#elif defined (__GNU_LIBRARY__) && defined (__i386__)
		309	ctx->env[0].__jmpbuf[0].__pc = (char *) coro_init;
		310	ctx->env[0].__jmpbuf[0].__sp = (void ) ((char )sptr + ssize) - sizeof (long);
		311	#elif defined (__GNU_LIBRARY__) && defined (__amd64__)
		312	ctx->env[0].__jmpbuf[JB_PC] = (long) coro_init;
		313	ctx->env[0].__jmpbuf[0].__sp = (void ) ((char )sptr + ssize) - sizeof (long);
		314	#else
		315	#error "linux libc or architecture not supported"
		316	#endif
		317
		318	# elif CORO_IRIX
		319
		320	coro_setjmp (ctx->env, 0);
		321	ctx->env[JB_PC] = (__uint64_t)coro_init;
		322	ctx->env[JB_SP] = (__uint64_t)STACK_ADJUST_PTR (sptr, ssize) - sizeof (long);
		323
		324	# elif CORO_ASM
		325
		326	ctx->sp = (void *)(ssize + (char )sptr);
		327	--ctx->sp = (void )abort; /* needed for alignment only */
		328	--ctx->sp = (void )coro_init;
		329
		330	#if CORO_WIN_TIB
		331	--ctx->sp = 0; / ExceptionList */
		332	--ctx->sp = (char )sptr + ssize; /* StackBase */
		333	--ctx->sp = sptr; / StackLimit */
		334	#endif
		335
		336	ctx->sp -= NUM_SAVED;
		337	memset (ctx->sp, 0, sizeof (ctx->sp) NUM_SAVED);
		338
		339	# elif CORO_UCONTEXT
		340
		341	getcontext (&(ctx->uc));
		342
		343	ctx->uc.uc_link = 0;
		344	ctx->uc.uc_stack.ss_sp = sptr;
		345	ctx->uc.uc_stack.ss_size = (size_t)ssize;
		346	ctx->uc.uc_stack.ss_flags = 0;
		347
		348	makecontext (&(ctx->uc), (void (*)())coro_init, 0);
		349
		350	# endif
		351
		352	coro_transfer (create_coro, new_coro);
		353	}
		354
		355	/*****************************************************************************/
		356	/* pthread backend */
		357	/*****************************************************************************/
		358	#elif CORO_PTHREAD
		359
		360	/* this mutex will be locked by the running coroutine */
		361	pthread_mutex_t coro_mutex = PTHREAD_MUTEX_INITIALIZER;
		362
		363	struct coro_init_args
		364	{
		365	coro_func func;
		366	void *arg;
		367	coro_context self, main;
		368	};
		369
		370	static pthread_t null_tid;
		371
		372	/* I'd so love to cast pthread_mutex_unlock to void ()(void )... */
		373	static void
		374	mutex_unlock_wrapper (void *arg)
		375	{
		376	pthread_mutex_unlock ((pthread_mutex_t *)arg);
		377	}
		378
		379	static void *
		380	coro_init (void *args_)
		381	{
		382	struct coro_init_args args = (struct coro_init_args )args_;
		383	coro_func func = args->func;
		384	void *arg = args->arg;
		385
		386	pthread_mutex_lock (&coro_mutex);
		387
		388	/* we try to be good citizens and use deferred cancellation and cleanup handlers */
		389	pthread_cleanup_push (mutex_unlock_wrapper, &coro_mutex);
		390	coro_transfer (args->self, args->main);
		391	func (arg);
		392	pthread_cleanup_pop (1);
		393
		394	return 0;
		395	}
		396
		397	void
		398	coro_transfer (coro_context prev, coro_context next)
		399	{
		400	pthread_cond_signal (&next->cv);
		401	pthread_cond_wait (&prev->cv, &coro_mutex);
		402	#if __FreeBSD__ /* freebsd is of course broken and needs manual testcancel calls... yay... */
		403	pthread_testcancel ();
		404	#endif
		405	}
		406
		407	void
		408	coro_create (coro_context ctx, coro_func coro, void arg, void *sptr, long ssize)
		409	{
		410	static coro_context nctx;
		411	static int once;
		412
		413	if (!once)
		414	{
		415	once = 1;
		416
		417	pthread_mutex_lock (&coro_mutex);
		418	pthread_cond_init (&nctx.cv, 0);
		419	null_tid = pthread_self ();
		420	}
		421
		422	pthread_cond_init (&ctx->cv, 0);
		423
		424	if (coro)
		425	{
		426	pthread_attr_t attr;
		427	struct coro_init_args args;
		428
		429	args.func = coro;
		430	args.arg = arg;
		431	args.self = ctx;
		432	args.main = &nctx;
		433
		434	pthread_attr_init (&attr);
		435	#if __UCLIBC__
		436	/* exists, but is borked */
		437	/pthread_attr_setstacksize (&attr, (size_t)ssize);/
261	#else	438	#else
262	#error "microsoft libc or architecture not supported"	439	pthread_attr_setstack (&attr, sptr, (size_t)ssize);
263	#endif	440	#endif
		441	pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
		442	pthread_create (&ctx->id, &attr, coro_init, &args);
264		443
265	# elif CORO_LINUX	444	coro_transfer (args.main, args.self);
		445	}
		446	else
		447	ctx->id = null_tid;
		448	}
266		449
267	_setjmp (ctx->env);	450	void
268	#if __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined (JB_PC) && defined (JB_SP)	451	coro_destroy (coro_context *ctx)
269	ctx->env[0].__jmpbuf[JB_PC] = (long)coro_init;	452	{
270	ctx->env[0].__jmpbuf[JB_SP] = (long)STACK_ADJUST_PTR (sptr, ssize);	453	if (!pthread_equal (ctx->id, null_tid))
271	#elif __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined (__mc68000__)	454	{
272	ctx->env[0].__jmpbuf[0].__aregs[0] = (long int)coro_init;	455	pthread_cancel (ctx->id);
273	ctx->env[0].__jmpbuf[0].__sp = (int )((char )sptr + ssize);	456	pthread_mutex_unlock (&coro_mutex);
274	#elif defined (__GNU_LIBRARY__) && defined (__i386__)	457	pthread_join (ctx->id, 0);
275	ctx->env[0].__jmpbuf[0].__pc = (char *)coro_init;	458	pthread_mutex_lock (&coro_mutex);
276	ctx->env[0].__jmpbuf[0].__sp = (void )((char )sptr + ssize);	459	}
277	#elif defined (__GNU_LIBRARY__) && defined (__amd64__)	460
278	ctx->env[0].__jmpbuf[JB_PC] = (long)coro_init;	461	pthread_cond_destroy (&ctx->cv);
279	ctx->env[0].__jmpbuf[JB_RSP] = (long)STACK_ADJUST_PTR (sptr, ssize);	462	}
		463
280	#else	464	#else
281	# error "linux libc or architecture not supported"	465	# error unsupported backend
282	#endif	466	#endif
283		467
284	# elif CORO_IRIX
285
286	setjmp (ctx->env);
287	ctx->env[JB_PC] = (__uint64_t)coro_init;
288	ctx->env[JB_SP] = (__uint64_t)STACK_ADJUST_PTR (sptr, ssize);
289
290	# elif CORO_ASM
291
292	ctx->sp = (volatile void *)(ssize + (char )sptr);
293	--ctx->sp = (void )coro_init;
294	--ctx->sp = (void )coro_init; // this is needed when the prologue saves ebp
295	ctx->sp -= NUM_CLOBBERED;
296
297	# endif
298
299	coro_transfer ((coro_context )create_coro, (coro_context )new_coro);
300
301	#else
302	# error unsupported architecture
303	#endif
304	}
305

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Comparing libcoro/coro.c (file contents): Revision 1.29 by root, Sun Mar 2 16:10:22 2008 UTC vs. Revision 1.58 by root, Fri Jun 10 12:27:02 2011 UTC

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Comparing libcoro/coro.c (file contents):
Revision 1.29 by root, Sun Mar 2 16:10:22 2008 UTC vs.
Revision 1.58 by root, Fri Jun 10 12:27:02 2011 UTC