95 lines
2.7 KiB
C
95 lines
2.7 KiB
C
/* $Id$ */
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/*
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* Copyright (C)2003-2006 Benny Prijono <benny@prijono.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __PJ_COMPAT_SETJMP_H__
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#define __PJ_COMPAT_SETJMP_H__
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/**
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* @file setjmp.h
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* @brief Provides setjmp.h functionality.
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*/
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#if defined(PJ_HAS_SETJMP_H) && PJ_HAS_SETJMP_H != 0
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# include <setjmp.h>
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typedef jmp_buf pj_jmp_buf;
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# ifndef pj_setjmp
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# define pj_setjmp(buf) setjmp(buf)
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# endif
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# ifndef pj_longjmp
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# define pj_longjmp(buf,d) longjmp(buf,d)
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# endif
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#elif defined(PJ_LINUX_KERNEL) && PJ_LINUX_KERNEL != 0 && \
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defined(PJ_M_I386) && PJ_M_I386 != 0
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/*
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* These are taken from uClibc.
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* Copyright (C) 2000-2003 Erik Andersen <andersen@uclibc.org>
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*/
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# if defined __USE_MISC || defined _ASM
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# define JB_BX 0
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# define JB_SI 1
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# define JB_DI 2
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# define JB_BP 3
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# define JB_SP 4
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# define JB_PC 5
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# define JB_SIZE 24
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# endif
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# ifndef _ASM
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typedef int __jmp_buf[6];
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/* A `sigset_t' has a bit for each signal. */
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# define _SIGSET_NWORDS (1024 / (8 * sizeof (unsigned long int)))
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typedef struct __sigset_t_tag
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{
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unsigned long int __val[_SIGSET_NWORDS];
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} __sigset_t;
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/* Calling environment, plus possibly a saved signal mask. */
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typedef struct __jmp_buf_tag /* C++ doesn't like tagless structs. */
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{
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/* NOTE: The machine-dependent definitions of `__sigsetjmp'
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assume that a `jmp_buf' begins with a `__jmp_buf' and that
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`__mask_was_saved' follows it. Do not move these members
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or add others before it. */
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__jmp_buf __jmpbuf; /* Calling environment. */
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int __mask_was_saved; /* Saved the signal mask? */
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// we never saved the mask.
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__sigset_t __saved_mask; /* Saved signal mask. */
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} jmp_buf[1];
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typedef jmp_buf sigjmp_buf;
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typedef jmp_buf pj_jmp_buf;
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PJ_DECL(int) pj_setjmp(pj_jmp_buf env);
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PJ_DECL(void) pj_longjmp(pj_jmp_buf env, int val) __attribute__((noreturn));
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# endif /* _ASM */
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#else
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# warning "setjmp()/longjmp() is not implemented"
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typedef int pj_jmp_buf[1];
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# define pj_setjmp(buf) 0
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# define pj_longjmp(buf,d) 0
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#endif
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#endif /* __PJ_COMPAT_SETJMP_H__ */
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