| Benny Prijono | 5dcb38d | 2005-11-21 01:55:47 +0000 | [diff] [blame] | 1 | /* $Id$ */ |
| 2 | /* |
| 3 | * Copyright (C)2003-2006 Benny Prijono <benny@prijono.org> |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 18 | */ |
| 19 | #ifndef __PJ_COMPAT_SETJMP_H__ |
| 20 | #define __PJ_COMPAT_SETJMP_H__ |
| 21 | |
| 22 | /** |
| 23 | * @file setjmp.h |
| 24 | * @brief Provides setjmp.h functionality. |
| 25 | */ |
| 26 | |
| 27 | #if defined(PJ_HAS_SETJMP_H) && PJ_HAS_SETJMP_H != 0 |
| 28 | # include <setjmp.h> |
| 29 | typedef jmp_buf pj_jmp_buf; |
| 30 | # define pj_setjmp(buf) setjmp(buf) |
| 31 | # define pj_longjmp(buf,d) longjmp(buf,d) |
| 32 | |
| 33 | #elif defined(PJ_LINUX_KERNEL) && PJ_LINUX_KERNEL != 0 && \ |
| 34 | defined(PJ_M_I386) && PJ_M_I386 != 0 |
| 35 | |
| 36 | /* |
| 37 | * These are taken from uClibc. |
| 38 | * Copyright (C) 2000-2003 Erik Andersen <andersen@uclibc.org> |
| 39 | */ |
| 40 | # if defined __USE_MISC || defined _ASM |
| 41 | # define JB_BX 0 |
| 42 | # define JB_SI 1 |
| 43 | # define JB_DI 2 |
| 44 | # define JB_BP 3 |
| 45 | # define JB_SP 4 |
| 46 | # define JB_PC 5 |
| 47 | # define JB_SIZE 24 |
| 48 | # endif |
| 49 | |
| 50 | # ifndef _ASM |
| 51 | typedef int __jmp_buf[6]; |
| 52 | |
| 53 | /* A `sigset_t' has a bit for each signal. */ |
| 54 | # define _SIGSET_NWORDS (1024 / (8 * sizeof (unsigned long int))) |
| 55 | typedef struct __sigset_t_tag |
| 56 | { |
| 57 | unsigned long int __val[_SIGSET_NWORDS]; |
| 58 | } __sigset_t; |
| 59 | |
| 60 | /* Calling environment, plus possibly a saved signal mask. */ |
| 61 | typedef struct __jmp_buf_tag /* C++ doesn't like tagless structs. */ |
| 62 | { |
| 63 | /* NOTE: The machine-dependent definitions of `__sigsetjmp' |
| 64 | assume that a `jmp_buf' begins with a `__jmp_buf' and that |
| 65 | `__mask_was_saved' follows it. Do not move these members |
| 66 | or add others before it. */ |
| 67 | __jmp_buf __jmpbuf; /* Calling environment. */ |
| 68 | int __mask_was_saved; /* Saved the signal mask? */ |
| 69 | // we never saved the mask. |
| 70 | __sigset_t __saved_mask; /* Saved signal mask. */ |
| 71 | } jmp_buf[1]; |
| 72 | |
| 73 | typedef jmp_buf sigjmp_buf; |
| 74 | typedef jmp_buf pj_jmp_buf; |
| 75 | |
| 76 | PJ_DECL(int) pj_setjmp(pj_jmp_buf env); |
| 77 | PJ_DECL(void) pj_longjmp(pj_jmp_buf env, int val) __attribute__((noreturn)); |
| 78 | |
| 79 | # endif /* _ASM */ |
| 80 | |
| 81 | #else |
| 82 | # warning "setjmp()/longjmp() is not implemented" |
| 83 | typedef int pj_jmp_buf[1]; |
| 84 | # define pj_setjmp(buf) 0 |
| 85 | # define pj_longjmp(buf,d) 0 |
| 86 | #endif |
| 87 | |
| 88 | |
| 89 | #endif /* __PJ_COMPAT_SETJMP_H__ */ |
| 90 | |