1/* Copyright (C) 1997, 1998 Free Software Foundation, Inc. 2 This file is part of the GNU C Library. 3 4 The GNU C Library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Lesser General Public 6 License as published by the Free Software Foundation; either 7 version 2.1 of the License, or (at your option) any later version. 8 9 The GNU C Library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public 15 License along with the GNU C Library; if not, write to the Free 16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 17 02111-1307 USA. */ 18 19/* Define the machine-dependent type `jmp_buf'. ARM version. */ 20#ifndef _BITS_SETJMP_H 21#define _BITS_SETJMP_H 1 22 23#if !defined _SETJMP_H && !defined _PTHREAD_H 24# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead." 25#endif 26 27#ifndef _ASM 28/* Jump buffer contains v1-v6, sl, fp, sp and pc. Other registers are not 29 saved. */ 30#ifdef __ARM_EABI__ 31/* The exact set of registers saved may depend on the particular core 32 in use, as some coprocessor registers may need to be saved. The C 33 Library ABI requires that the buffer be 8-byte aligned, and 34 recommends that the buffer contain 64 words. The first 28 words 35 are occupied by v1-v6, sl, fp, sp, pc, d8-d15, and fpscr. (Note 36 that d8-15 require 17 words, due to the use of fstmx.) */ 37typedef int __jmp_buf[64] __attribute__((aligned (8))); 38#elif defined __MAVERICK__ || defined __IWMMXT__ 39typedef int __jmp_buf[34]; 40#else 41typedef int __jmp_buf[22]; 42#endif 43#endif 44 45#define __JMP_BUF_SP 8 46 47/* Test if longjmp to JMPBUF would unwind the frame 48 containing a local variable at ADDRESS. */ 49#define _JMPBUF_UNWINDS(jmpbuf, address) \ 50 ((void *) (address) < (void *) (jmpbuf[__JMP_BUF_SP])) 51 52#endif /* bits/setjmp.h */ 53