1/*! 2 * \copy 3 * Copyright (c) 2013, Cisco Systems 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * * Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 13 * * Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 21 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 22 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 24 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 26 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 28 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 * 31 */ 32 33#ifdef __APPLE__ 34 35.text 36 37.macro WELS_ASM_AARCH64_FUNC_BEGIN 38.align 2 39.globl _$0 40_$0: 41.endm 42 43.macro WELS_ASM_AARCH64_FUNC_END 44ret 45.endm 46#else 47 48#ifdef __ELF__ 49.section .note.GNU-stack,"",%progbits // Mark stack as non-executable 50#endif 51.text 52 53.macro WELS_ASM_AARCH64_FUNC_BEGIN funcName 54.align 2 55.global \funcName 56#ifdef __ELF__ 57.type \funcName, %function 58#endif 59#ifndef __clang__ 60.func \funcName 61#endif 62\funcName: 63.endm 64 65.macro WELS_ASM_AARCH64_FUNC_END 66ret 67#ifndef __clang__ 68.endfunc 69#endif 70.endm 71 72#endif 73 74.macro SIGN_EXTENSION arg0, arg1 75 sxtw \arg0, \arg1 76.endm 77