compiler.hh revision 10686
1/* 2 * Copyright (c) 2012 ARM Limited 3 * All rights reserved 4 * 5 * The license below extends only to copyright in the software and shall 6 * not be construed as granting a license to any other intellectual 7 * property including but not limited to intellectual property relating 8 * to a hardware implementation of the functionality of the software 9 * licensed hereunder. You may use the software subject to the license 10 * terms below provided that you ensure that this notice is replicated 11 * unmodified and in its entirety in all distributions of the software, 12 * modified or unmodified, in source code or in binary form. 13 * 14 * Copyright (c) 2006 The Regents of The University of Michigan 15 * All rights reserved. 16 * 17 * Redistribution and use in source and binary forms, with or without 18 * modification, are permitted provided that the following conditions are 19 * met: redistributions of source code must retain the above copyright 20 * notice, this list of conditions and the following disclaimer; 21 * redistributions in binary form must reproduce the above copyright 22 * notice, this list of conditions and the following disclaimer in the 23 * documentation and/or other materials provided with the distribution; 24 * neither the name of the copyright holders nor the names of its 25 * contributors may be used to endorse or promote products derived from 26 * this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 30 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 31 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 32 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 33 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 34 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 35 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 36 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 37 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 38 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 39 * 40 * Authors: Ali Saidi 41 */ 42 43#ifndef __BASE_COMPILER_HH__ 44#define __BASE_COMPILER_HH__ 45 46// gcc C++11 status: http://gcc.gnu.org/projects/cxx0x.html 47// clang C++11 status: http://clang.llvm.org/cxx_status.html 48// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 49 50/* Support for override control (final/override) */ 51#undef M5_COMP_HAS_OVERRIDE_CONTROL 52 53#if defined(__GNUC__) && !defined(__clang__) /* Check for gcc */ 54 55# define M5_GCC_VERSION(maj, min) \ 56 (__GNUC__ > (maj) || (__GNUC__ == (maj) && __GNUC_MINOR__ >= (min))) 57 58# define M5_COMP_HAS_OVERRIDE_CONTROL M5_GCC_VERSION(4, 7) 59 60#elif defined(__clang__) /* Check for clang */ 61 62# define M5_COMP_HAS_OVERRIDE_CONTROL __has_feature(cxx_override_control) 63 64#else 65# error "Need to define compiler options in base/compiler.hh" 66#endif 67 68 69#if M5_COMP_HAS_OVERRIDE_CONTROL 70# define M5_ATTR_FINAL final 71# define M5_ATTR_OVERRIDE override 72#else 73# define M5_ATTR_FINAL 74# define M5_ATTR_OVERRIDE 75#endif 76 77#if defined(__GNUC__) // clang or gcc 78# define M5_ATTR_NORETURN __attribute__((noreturn)) 79# define M5_DUMMY_RETURN 80# define M5_VAR_USED __attribute__((unused)) 81# define M5_ATTR_PACKED __attribute__ ((__packed__)) 82# define M5_NO_INLINE __attribute__ ((__noinline__)) 83# define M5_DEPRECATED __attribute__((deprecated)) 84# define M5_DEPRECATED_MSG(MSG) __attribute__((deprecated(MSG))) 85#endif 86 87#if defined(__clang__) 88# define M5_CLASS_VAR_USED M5_VAR_USED 89#else 90# define M5_CLASS_VAR_USED 91#endif 92 93#endif // __BASE_COMPILER_HH__ 94