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Comparing libcoro/coro.h (file contents):
Revision 1.52 by root, Fri Dec 7 14:21:09 2012 UTC vs.
Revision 1.57 by root, Sat Aug 27 12:50:11 2016 UTC

1/* 1/*
2 * Copyright (c) 2001-2012 Marc Alexander Lehmann <schmorp@schmorp.de> 2 * Copyright (c) 2001-2012,2015 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,
… …
76 * 2011-07-03 rely on __GCC_HAVE_DWARF2_CFI_ASM for cfi detection. 76 * 2011-07-03 rely on __GCC_HAVE_DWARF2_CFI_ASM for cfi detection.
77 * 2011-08-08 cygwin trashes stacks, use pthreads with double stack on cygwin. 77 * 2011-08-08 cygwin trashes stacks, use pthreads with double stack on cygwin.
78 * 2012-12-04 reduce misprediction penalty for x86/amd64 assembly switcher. 78 * 2012-12-04 reduce misprediction penalty for x86/amd64 assembly switcher.
79 * 2012-12-05 experimental fiber backend (allocates stack twice). 79 * 2012-12-05 experimental fiber backend (allocates stack twice).
80 * 2012-12-07 API version 3 - add coro_stack_alloc/coro_stack_free. 80 * 2012-12-07 API version 3 - add coro_stack_alloc/coro_stack_free.
81 * 2012-12-21 valgrind stack registering was broken.
82 * 2015-12-05 experimental asm be for arm7, based on a patch by Nick Zavaritsky.
83 * use __name__ for predefined symbols, as in libecb.
84 * enable guard pages on arm, aarch64 and mips.
85 * 2016-08-27 try to disable _FORTIFY_SOURCE with CORO_SJLJ, as it
86 * breaks setjmp/longjmp.
81 */ 87 */
82 88
83#ifndef CORO_H 89#ifndef CORO_H
84#define CORO_H 90#define CORO_H
85 91
… …
137 * For SGI's version of Microsoft's NT ;) 143 * For SGI's version of Microsoft's NT ;)
138 * 144 *
139 * -DCORO_ASM 145 * -DCORO_ASM
140 * 146 *
141 * Hand coded assembly, known to work only on a few architectures/ABI: 147 * Hand coded assembly, known to work only on a few architectures/ABI:
142 * GCC + x86/IA32 and amd64/x86_64 + GNU/Linux and a few BSDs. Fastest choice, 148 * GCC + arm7/x86/IA32/amd64/x86_64 + GNU/Linux and a few BSDs. Fastest
143 * if it works. 149 * choice, if it works.
144 * 150 *
145 * -DCORO_PTHREAD 151 * -DCORO_PTHREAD
146 * 152 *
147 * Use the pthread API. You have to provide <pthread.h> and -lpthread. 153 * Use the pthread API. You have to provide <pthread.h> and -lpthread.
148 * This is likely the slowest backend, and it also does not support fork(), 154 * This is likely the slowest backend, and it also does not support fork(),
… …
296 302
297#if !defined CORO_LOSER && !defined CORO_UCONTEXT \ 303#if !defined CORO_LOSER && !defined CORO_UCONTEXT \
298 && !defined CORO_SJLJ && !defined CORO_LINUX \ 304 && !defined CORO_SJLJ && !defined CORO_LINUX \
299 && !defined CORO_IRIX && !defined CORO_ASM \ 305 && !defined CORO_IRIX && !defined CORO_ASM \
300 && !defined CORO_PTHREAD && !defined CORO_FIBER 306 && !defined CORO_PTHREAD && !defined CORO_FIBER
301# if defined WINDOWS && (defined __x86 || defined __amd64 || defined _M_IX86 || defined _M_AMD64) 307# if defined WINDOWS && (defined __i386__ || (__x86_64__ || defined _M_IX86 || defined _M_AMD64)
302# define CORO_ASM 1 308# define CORO_ASM 1
303# elif defined WINDOWS || defined _WIN32 309# elif defined WINDOWS || defined _WIN32
304# define CORO_LOSER 1 /* you don't win with windoze */ 310# define CORO_LOSER 1 /* you don't win with windoze */
305# elif defined __linux && (defined __x86 || defined __amd64) 311# elif __linux && (__i386__ || (__x86_64__ && !__ILP32__) || (__arm__ && __ARM_ARCH == 7))
306# define CORO_ASM 1 312# define CORO_ASM 1
307# elif defined HAVE_UCONTEXT_H 313# elif defined HAVE_UCONTEXT_H
308# define CORO_UCONTEXT 1 314# define CORO_UCONTEXT 1
309# elif defined HAVE_SETJMP_H && defined HAVE_SIGALTSTACK 315# elif defined HAVE_SETJMP_H && defined HAVE_SIGALTSTACK
310# define CORO_SJLJ 1 316# define CORO_SJLJ 1
… …
329 335
330#elif CORO_SJLJ || CORO_LOSER || CORO_LINUX || CORO_IRIX 336#elif CORO_SJLJ || CORO_LOSER || CORO_LINUX || CORO_IRIX
331 337
332# if defined(CORO_LINUX) && !defined(_GNU_SOURCE) 338# if defined(CORO_LINUX) && !defined(_GNU_SOURCE)
333# define _GNU_SOURCE /* for glibc */ 339# define _GNU_SOURCE /* for glibc */
340# endif
341
342/* try to disable well-meant but buggy checks in some libcs */
343# ifdef _FORTIFY_SOURCE
344# undef _FORTIFY_SOURCE
345# undef __USE_FORTIFY_LEVEL /* helps some more when too much has been included already */
334# endif 346# endif
335 347
336# if !CORO_LOSER 348# if !CORO_LOSER
337# include <unistd.h> 349# include <unistd.h>
338# endif 350# endif
… …
372struct coro_context 384struct coro_context
373{ 385{
374 void **sp; /* must be at offset 0 */ 386 void **sp; /* must be at offset 0 */
375}; 387};
376 388
389#if __i386__ || __x86_64__
377void __attribute__ ((__noinline__, __regparm__(2))) 390void __attribute__ ((__noinline__, __regparm__(2)))
391#else
392void __attribute__ ((__noinline__))
393#endif
378coro_transfer (coro_context *prev, coro_context *next); 394coro_transfer (coro_context *prev, coro_context *next);
379 395
380# define coro_destroy(ctx) (void *)(ctx) 396# define coro_destroy(ctx) (void *)(ctx)
381 397
382#elif CORO_PTHREAD 398#elif CORO_PTHREAD

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