compiler.hh (10277:ef888b246cd0) compiler.hh (10291:56772eb01583)
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

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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// gcc C++11 status: http://gcc.gnu.org/projects/cxx0x.html
47// clang C++11 status: http://clang.llvm.org/cxx_status.html
46// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html
47
48// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html
49
48#if defined(__GNUC__)
49#define M5_ATTR_NORETURN __attribute__((noreturn))
50#define M5_DUMMY_RETURN
51#define M5_VAR_USED __attribute__((unused))
50/* Support for override control (final/override) */
51#undef M5_COMP_HAS_OVERRIDE_CONTROL
52
52
53#if defined(__clang__)
54#define M5_CLASS_VAR_USED M5_VAR_USED
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
55#else
64#else
56#define M5_CLASS_VAR_USED
65# error "Need to define compiler options in base/compiler.hh"
57#endif
58
66#endif
67
59#define M5_ATTR_PACKED __attribute__ ((__packed__))
60#define M5_NO_INLINE __attribute__ ((__noinline__))
68
69#if M5_COMP_HAS_OVERRIDE_CONTROL
70# define M5_ATTR_FINAL final
71# define M5_ATTR_OVERRIDE override
61#else
72#else
62#error "Need to define compiler options in base/compiler.hh"
73# define M5_ATTR_FINAL
74# define M5_ATTR_OVERRIDE
63#endif
64
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#endif
84
85#if defined(__clang__)
86# define M5_CLASS_VAR_USED M5_VAR_USED
87#else
88# define M5_CLASS_VAR_USED
89#endif
90
65#endif // __BASE_COMPILER_HH__
91#endif // __BASE_COMPILER_HH__