| 1 | /*␊ |
| 2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.␊ |
| 3 | *␊ |
| 4 | * @APPLE_LICENSE_HEADER_START@␊ |
| 5 | * ␊ |
| 6 | * This file contains Original Code and/or Modifications of Original Code␊ |
| 7 | * as defined in and that are subject to the Apple Public Source License␊ |
| 8 | * Version 2.0 (the 'License'). You may not use this file except in␊ |
| 9 | * compliance with the License. Please obtain a copy of the License at␊ |
| 10 | * http://www.opensource.apple.com/apsl/ and read it before using this␊ |
| 11 | * file.␊ |
| 12 | * ␊ |
| 13 | * The Original Code and all software distributed under the License are␊ |
| 14 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER␊ |
| 15 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,␊ |
| 16 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,␊ |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.␊ |
| 18 | * Please see the License for the specific language governing rights and␊ |
| 19 | * limitations under the License.␊ |
| 20 | * ␊ |
| 21 | * @APPLE_LICENSE_HEADER_END@␊ |
| 22 | */␊ |
| 23 | #ifndef _BSD_SETJMP_H␊ |
| 24 | #define _BSD_SETJMP_H␊ |
| 25 | ␊ |
| 26 | #include <sys/cdefs.h>␊ |
| 27 | ␊ |
| 28 | #if defined(__x86_64__)␊ |
| 29 | /*␊ |
| 30 | * _JBLEN is number of ints required to save the following:␊ |
| 31 | * rflags, rip, rbp, rsp, rbx, r12, r13, r14, r15... these are 8 bytes each␊ |
| 32 | * mxcsr, fp control word, sigmask... these are 4 bytes each␊ |
| 33 | * add 16 ints for future expansion needs...␊ |
| 34 | */␊ |
| 35 | #define _JBLEN ((9 * 2) + 3 + 16)␊ |
| 36 | typedef int jmp_buf[_JBLEN];␊ |
| 37 | typedef int sigjmp_buf[_JBLEN + 1];␊ |
| 38 | ␊ |
| 39 | #elif defined(__i386__)␊ |
| 40 | ␊ |
| 41 | /*␊ |
| 42 | * _JBLEN is number of ints required to save the following:␊ |
| 43 | * eax, ebx, ecx, edx, edi, esi, ebp, esp, ss, eflags, eip,␊ |
| 44 | * cs, de, es, fs, gs == 16 ints␊ |
| 45 | * onstack, mask = 2 ints␊ |
| 46 | */␊ |
| 47 | ␊ |
| 48 | #define _JBLEN (18)␊ |
| 49 | typedef int jmp_buf[_JBLEN];␊ |
| 50 | ␊ |
| 51 | #elif defined(__arm__)␊ |
| 52 | ␊ |
| 53 | #include <machine/signal.h>␊ |
| 54 | ␊ |
| 55 | /*␊ |
| 56 | *␉_JBLEN is number of ints required to save the following:␊ |
| 57 | *␉r4-r8, r10, fp, sp, lr, sig == 10 register_t sized␊ |
| 58 | *␉s16-s31 == 16 register_t sized + 1 int for FSTMX␊ |
| 59 | *␉1 extra int for future use␊ |
| 60 | */␊ |
| 61 | #define _JBLEN␉␉(10 + 16 + 2)␊ |
| 62 | #define _JBLEN_MAX␉_JBLEN␊ |
| 63 | ␊ |
| 64 | typedef int jmp_buf[_JBLEN];␊ |
| 65 | typedef int sigjmp_buf[_JBLEN + 1];␊ |
| 66 | ␊ |
| 67 | #else␊ |
| 68 | #␉error Undefined platform for setjmp␊ |
| 69 | #endif␊ |
| 70 | ␊ |
| 71 | __BEGIN_DECLS␊ |
| 72 | extern int␉setjmp(jmp_buf);␊ |
| 73 | extern void longjmp(jmp_buf, int) ;␊ |
| 74 | ␊ |
| 75 | #ifndef _ANSI_SOURCE␊ |
| 76 | int␉_setjmp(jmp_buf);␊ |
| 77 | void␉_longjmp(jmp_buf, int) ;␊ |
| 78 | #endif /* _ANSI_SOURCE */␊ |
| 79 | ␊ |
| 80 | __END_DECLS␊ |
| 81 | ␊ |
| 82 | #endif /* _BSD_SETJMP_H */␊ |
| 83 | |
