1// SPDX-License-Identifier: BSD-2-Clause 2/*- 3 * Copyright 2004-2014 Olivier Houchard <cognet@FreeBSD.org> 4 * Copyright 2012-2014 Ian Lepore <ian@FreeBSD.org> 5 * Copyright 2013-2014 Andrew Turner <andrew@FreeBSD.org> 6 * Copyright 2014 Svatopluk Kraus <onwahe@gmail.com> 7 * Copyright 2014 Michal Meloun <meloun@miracle.cz> 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 33#if defined(__arm__) && !defined(__aarch64__) 34 35#if defined(__thumb2__) 36#define _FUNC_MODE .code 16; .thumb_func 37#else 38#define _FUNC_MODE .code 32 39#endif 40 41#define ENTRY(x) \ 42 .text; \ 43 .syntax unified; \ 44 .balign 2; \ 45 .global x; \ 46 .type x,#function; \ 47 _FUNC_MODE; \ 48x: 49 50#define END(x) \ 51 .size x, . - x; 52 53#define RET bx lr 54 55 56/* 57 * setjump + longjmp 58 */ 59ENTRY(setjmp) 60#if defined(__thumb2__) 61 mov ip, sp 62 stmia r0, {r4-r12,r14} 63#else 64 stmia r0, {r4-r14} 65#endif 66 mov r0, #0x00000000 67 RET 68END(setjmp) 69 70ENTRY(longjmp) 71#if defined(__thumb2__) 72 ldmia r0, {r4-r12,r14} 73 mov sp, ip 74#else 75 ldmia r0, {r4-r14} 76#endif 77 mov r0, #0x00000001 78 RET 79END(longjmp) 80 81#ifdef __ELF__ 82.section .note.GNU-stack,"",%progbits 83#endif 84 85#endif 86