compiler.hh (8620:82ad0f25a758) compiler.hh (9255:60f043573a65)
1/*
2 * Copyright (c) 2006 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;

--- 17 unchanged lines hidden (view full) ---

26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Ali Saidi
29 */
30
31#ifndef __BASE_COMPILER_HH__
32#define __BASE_COMPILER_HH__
33
1/*
2 * Copyright (c) 2006 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;

--- 17 unchanged lines hidden (view full) ---

26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Ali Saidi
29 */
30
31#ifndef __BASE_COMPILER_HH__
32#define __BASE_COMPILER_HH__
33
34#include "config/have_static_assert.hh"
35
34//http://msdn2.microsoft.com/en-us/library/ms937669.aspx
35//http://msdn2.microsoft.com/en-us/library/aa448724.aspx
36//http://docs.sun.com/source/819-3688/sun.specific.html#marker-998278
37//http://gcc.gnu.org/onlinedocs/gcc-3.3.1/gcc/Function-Attributes.html#Function%20Attributes
38
39#if defined(__GNUC__)
40#define M5_ATTR_NORETURN __attribute__((noreturn))
41#define M5_PRAGMA_NORETURN(x)

--- 9 unchanged lines hidden (view full) ---

51#define M5_VAR_USED
52#define M5_PRAGMA_NORETURN(x) DO_PRAGMA(does_not_return(x))
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
36//http://msdn2.microsoft.com/en-us/library/ms937669.aspx
37//http://msdn2.microsoft.com/en-us/library/aa448724.aspx
38//http://docs.sun.com/source/819-3688/sun.specific.html#marker-998278
39//http://gcc.gnu.org/onlinedocs/gcc-3.3.1/gcc/Function-Attributes.html#Function%20Attributes
40
41#if defined(__GNUC__)
42#define M5_ATTR_NORETURN __attribute__((noreturn))
43#define M5_PRAGMA_NORETURN(x)

--- 9 unchanged lines hidden (view full) ---

53#define M5_VAR_USED
54#define M5_PRAGMA_NORETURN(x) DO_PRAGMA(does_not_return(x))
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
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
59#endif // __BASE_COMPILER_HH__
89#endif // __BASE_COMPILER_HH__