1/*- 2 * Copyright 2004-2014 Olivier Houchard <cognet@FreeBSD.org> 3 * Copyright 2012-2014 Ian Lepore <ian@FreeBSD.org> 4 * Copyright 2013-2014 Andrew Turner <andrew@FreeBSD.org> 5 * Copyright 2014 Svatopluk Kraus <onwahe@gmail.com> 6 * Copyright 2014 Michal Meloun <meloun@miracle.cz> 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 32#if defined(__arm__) && !defined(__aarch64__) 33 34#if defined(__thumb2__) 35#define _FUNC_MODE .code 16; .thumb_func 36#else 37#define _FUNC_MODE .code 32 38#endif 39 40#define ENTRY(x) \ 41 .text; \ 42 .syntax unified; \ 43 .balign 2; \ 44 .global x; \ 45 .type x,#function; \ 46 _FUNC_MODE; \ 47x: 48 49#define END(x) \ 50 .size x, . - x; 51 52#define RET bx lr 53 54 55/* 56 * setjump + longjmp 57 */ 58ENTRY(setjmp) 59#if defined(__thumb2__) 60 mov ip, sp 61 stmia r0, {r4-r12,r14} 62#else 63 stmia r0, {r4-r14} 64#endif 65 mov r0, #0x00000000 66 RET 67END(setjmp) 68 69ENTRY(longjmp) 70#if defined(__thumb2__) 71 ldmia r0, {r4-r12,r14} 72 mov sp, ip 73#else 74 ldmia r0, {r4-r14} 75#endif 76 mov r0, #0x00000001 77 RET 78END(longjmp) 79 80#ifdef __ELF__ 81.section .note.GNU-stack,"",%progbits 82#endif 83 84#endif 85