compiler.hh (9419:54d5c0e5852a) | compiler.hh (9420:965d857ac791) |
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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 --- 29 unchanged lines hidden (view full) --- 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 | 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 --- 29 unchanged lines hidden (view full) --- 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#include "config/have_static_assert.hh" 47 | |
48// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 49 50#if defined(__GNUC__) 51#define M5_ATTR_NORETURN __attribute__((noreturn)) 52#define M5_PRAGMA_NORETURN(x) 53#define M5_DUMMY_RETURN 54#define M5_VAR_USED __attribute__((unused)) 55#define M5_ATTR_PACKED __attribute__ ((__packed__)) 56#define M5_NO_INLINE __attribute__ ((__noinline__)) 57#else 58#error "Need to define compiler options in base/compiler.hh" 59#endif 60 | 46// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 47 48#if defined(__GNUC__) 49#define M5_ATTR_NORETURN __attribute__((noreturn)) 50#define M5_PRAGMA_NORETURN(x) 51#define M5_DUMMY_RETURN 52#define M5_VAR_USED __attribute__((unused)) 53#define M5_ATTR_PACKED __attribute__ ((__packed__)) 54#define M5_NO_INLINE __attribute__ ((__noinline__)) 55#else 56#error "Need to define compiler options in base/compiler.hh" 57#endif 58 |
61/* 62 * Define a compatibility macro that emulates the behavior of 63 * static_assert using template magic if the compiler doesn't have 64 * native support. 65 */ 66#if !HAVE_STATIC_ASSERT 67 68template<bool> 69struct static_assert_failure; 70 71template<> 72struct static_assert_failure<false> {}; 73 74/* The following macro causes the compiler to evaluate the size of the 75 * static_assert_failure struct. The templates are designed so that 76 * only static_assert_failure<false> evaluates to a proper size, while 77 * static_assert_failure<true> generates a compile time error. 78 */ 79#define static_assert(expr, msg) \ 80 namespace ns_static_assert { \ 81 enum { \ 82 static_assert_ ## __LINE__ = \ 83 sizeof(static_assert_failure<!(expr)>) \ 84 }; \ 85 } 86 87#endif 88 | |
89#endif // __BASE_COMPILER_HH__ | 59#endif // __BASE_COMPILER_HH__ |