1f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin/* 2f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin * Copyright (c) 2015 Dmitry V. Levin <ldv@altlinux.org> 339bac055674d23770b9a724221b728e443196ea7Elliott Hughes * Copyright (c) 2015-2017 The strace developers. 4f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin * All rights reserved. 5f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin * 6f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin * Redistribution and use in source and binary forms, with or without 7f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin * modification, are permitted provided that the following conditions 8f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin * are met: 9f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin * 1. Redistributions of source code must retain the above copyright 10f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin * notice, this list of conditions and the following disclaimer. 11f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin * 2. Redistributions in binary form must reproduce the above copyright 12f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin * notice, this list of conditions and the following disclaimer in the 13f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin * documentation and/or other materials provided with the distribution. 14f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin * 3. The name of the author may not be used to endorse or promote products 15f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin * derived from this software without specific prior written permission. 16f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin * 17f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin */ 28f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin 2918907920bb11dc0325821021885b808ff1bbc363Eugene Syromyatnikov#ifndef STRACE_GCC_COMPAT_H 3018907920bb11dc0325821021885b808ff1bbc363Eugene Syromyatnikov#define STRACE_GCC_COMPAT_H 31f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin 32f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin#if defined __GNUC__ && defined __GNUC_MINOR__ 33f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin# define GNUC_PREREQ(maj, min) \ 34f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min)) 35f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin#else 36f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin# define __attribute__(x) /* empty */ 37f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin# define GNUC_PREREQ(maj, min) 0 38f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin#endif 39f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin 40f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin#if GNUC_PREREQ(2, 5) 41f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin# define ATTRIBUTE_NORETURN __attribute__((__noreturn__)) 42f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin#else 43f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin# define ATTRIBUTE_NORETURN /* empty */ 44f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin#endif 45f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin 46f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin#if GNUC_PREREQ(2, 7) 47f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin# define ATTRIBUTE_FORMAT(args) __attribute__((__format__ args)) 48f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin# define ATTRIBUTE_ALIGNED(arg) __attribute__((__aligned__(arg))) 49f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin# define ATTRIBUTE_PACKED __attribute__((__packed__)) 50f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin#else 51f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin# define ATTRIBUTE_FORMAT(args) /* empty */ 52f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin# define ATTRIBUTE_ALIGNED(arg) /* empty */ 53f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin# define ATTRIBUTE_PACKED /* empty */ 54f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin#endif 55f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin 56f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin#if GNUC_PREREQ(3, 0) 57d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# define SAME_TYPE(x, y) __builtin_types_compatible_p(typeof(x), typeof(y)) 58d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# define FAIL_BUILD_ON_ZERO(expr) (sizeof(int[-1 + 2 * !!(expr)]) * 0) 59d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes/* &(a)[0] is a pointer and not an array, shouldn't be treated as the same */ 60d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# define MUST_BE_ARRAY(a) FAIL_BUILD_ON_ZERO(!SAME_TYPE((a), &(a)[0])) 61d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#else 62d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# define SAME_TYPE(x, y) 0 63d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# define MUST_BE_ARRAY(a) 0 64d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#endif 65d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 66d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#if GNUC_PREREQ(3, 0) 67f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin# define ATTRIBUTE_MALLOC __attribute__((__malloc__)) 68f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin#else 69f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin# define ATTRIBUTE_MALLOC /* empty */ 70f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin#endif 71f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin 72f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin#if GNUC_PREREQ(3, 1) 73f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin# define ATTRIBUTE_NOINLINE __attribute__((__noinline__)) 74f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin#else 75f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin# define ATTRIBUTE_NOINLINE /* empty */ 76f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin#endif 77f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin 78b0d23cc2c0e2d9d4dea253ce04955ac6c78ce49eDmitry V. Levin#if GNUC_PREREQ(4, 0) 79b0d23cc2c0e2d9d4dea253ce04955ac6c78ce49eDmitry V. Levin# define ATTRIBUTE_SENTINEL __attribute__((__sentinel__)) 80b0d23cc2c0e2d9d4dea253ce04955ac6c78ce49eDmitry V. Levin#else 81b0d23cc2c0e2d9d4dea253ce04955ac6c78ce49eDmitry V. Levin# define ATTRIBUTE_SENTINEL /* empty */ 82b0d23cc2c0e2d9d4dea253ce04955ac6c78ce49eDmitry V. Levin#endif 83b0d23cc2c0e2d9d4dea253ce04955ac6c78ce49eDmitry V. Levin 84d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#if GNUC_PREREQ(4, 1) 85d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# define ALIGNOF(t_) __alignof__(t_) 86d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#else 87dc75b01004a0588c1eb3bc26d7248a6e473b2cddElliott Hughes# define ALIGNOF(t_) (sizeof(struct { char x_; t_ y_; }) - sizeof(t_)) 88d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#endif 89d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 90f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin#if GNUC_PREREQ(4, 3) 91f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin# define ATTRIBUTE_ALLOC_SIZE(args) __attribute__((__alloc_size__ args)) 92f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin#else 93f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin# define ATTRIBUTE_ALLOC_SIZE(args) /* empty */ 94f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin#endif 95f32126ba790dd4e61d43a2140b24f02426297bb6Dmitry V. Levin 9642ceb0fd7f153daab55763b47d1cd23ed630fd47Dmitry V. Levin#endif /* !STRACE_GCC_COMPAT_H */ 97