1/* 2 * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_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. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28/* Copyright (c) 1998 Apple Computer, Inc. All rights reserved. 29 * 30 * File: ppc/setjmp.h 31 * 32 * Declaration of setjmp routines and data structures. 33 */ 34#ifndef _BSD_PPC_SETJMP_H_ 35#define _BSD_PPC_SETJMP_H_ 36 37#include <sys/cdefs.h> 38 39#define __need_struct_sigcontext 40#if defined(KERNEL) 41#define __need_struct_sigcontext32 42#define __need_struct_sigcontext64 43#endif /* KERNEL */ 44#include <ppc/_structs.h> 45 46struct _jmp_buf { 47#if __DARWIN_UNIX03 48 _STRUCT_SIGCONTEXT __sigcontext; /* kernel state preserved by set/longjmp */ 49 unsigned int __vmask __attribute__((aligned(8))); /* vector mask register */ 50 unsigned int __vreg[32 * 4] __attribute__((aligned(16))); 51 /* 32 128-bit vector registers */ 52#else /* !__DARWIN_UNIX03 */ 53 _STRUCT_SIGCONTEXT sigcontext; /* kernel state preserved by set/longjmp */ 54 unsigned int vmask __attribute__((aligned(8))); /* vector mask register */ 55 unsigned int vreg[32 * 4] __attribute__((aligned(16))); 56 /* 32 128-bit vector registers */ 57#endif /* __DARWIN_UNIX03 */ 58}; 59 60/* 61 * _JBLEN is number of ints required to save the following: 62 * r1, r2, r13-r31, lr, cr, ctr, xer, sig == 26 register_t sized 63 * fr14 - fr31 = 18 doubles 64 * vmask, 32 vector registers = 129 ints 65 * 2 ints to get all the elements aligned 66 * 67 * register_t is 2 ints for ppc64 threads 68 */ 69#define _JBLEN64 (26*2 + 18*2 + 129 + 1) 70#define _JBLEN32 (26 + 18*2 + 129 + 1) 71#define _JBLEN_MAX _JBLEN64 72 73/* 74 * Locally scoped sizes 75 */ 76#if defined(__ppc64__) 77#define _JBLEN _JBLEN64 78#else 79#define _JBLEN _JBLEN32 80#endif 81 82#if defined(KERNEL) 83typedef _STRUCT_SIGCONTEXT32 jmp_buf32[1]; 84typedef struct __sigjmp_buf32 { 85 int __storage[_JBLEN32 + 1] __attribute__((aligned(8))); 86 } sigjmp_buf32[1]; 87 88typedef struct sigcontext64 jmp_buf64[1]; 89typedef struct __sigjmp_buf64 { 90 int __storage[_JBLEN64 + 1] __attribute__((aligned(8))); 91 } sigjmp_buf64[1]; 92 93/* 94 * JMM - have to decide how the kernel will deal with this. 95 * For now, hard-code the 32-bit types. 96 */ 97typedef _STRUCT_SIGCONTEXT32 jmp_buf[1]; 98typedef struct __sigjmp_buf32 sigjmp_buf[1]; 99 100#else 101typedef int jmp_buf[_JBLEN]; 102typedef int sigjmp_buf[_JBLEN + 1]; 103#endif 104 105__BEGIN_DECLS 106int setjmp(jmp_buf); 107void longjmp(jmp_buf, int); 108 109#ifndef _ANSI_SOURCE 110int _setjmp(jmp_buf); 111void _longjmp(jmp_buf, int); 112int sigsetjmp(sigjmp_buf, int); 113void siglongjmp(sigjmp_buf, int); 114#endif /* _ANSI_SOURCE */ 115 116#if !defined(_ANSI_SOURCE) && (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)) 117void longjmperror(void); 118#endif /* neither ANSI nor POSIX */ 119__END_DECLS 120 121#endif /* !_BSD_PPC_SETJMP_H_ */ 122