diff options
Diffstat (limited to 'gcc/system.h')
| -rw-r--r-- | gcc/system.h | 58 |
1 files changed, 48 insertions, 10 deletions
diff --git a/gcc/system.h b/gcc/system.h index 984f302fbc..0cbf60a28d 100644 --- a/gcc/system.h +++ b/gcc/system.h @@ -1,6 +1,6 @@ /* Get common system includes and various definitions and declarations based on autoconf macros. - Copyright (C) 1998-2016 Free Software Foundation, Inc. + Copyright (C) 1998-2017 Free Software Foundation, Inc. This file is part of GCC. @@ -577,15 +577,21 @@ extern int vsnprintf (char *, size_t, const char *, va_list); /* 1 if we have C99 designated initializers. */ #if !defined(HAVE_DESIGNATED_INITIALIZERS) +#ifdef __cplusplus +#define HAVE_DESIGNATED_INITIALIZERS 0 +#else #define HAVE_DESIGNATED_INITIALIZERS \ - (((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L)) \ - && !defined(__cplusplus)) + ((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L)) +#endif #endif #if !defined(HAVE_DESIGNATED_UNION_INITIALIZERS) +#ifdef __cplusplus +#define HAVE_DESIGNATED_UNION_INITIALIZERS (GCC_VERSION >= 4007) +#else #define HAVE_DESIGNATED_UNION_INITIALIZERS \ - (((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L)) \ - && (!defined(__cplusplus) || (GCC_VERSION >= 4007))) + ((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L)) +#endif #endif #if HAVE_SYS_STAT_H @@ -746,15 +752,30 @@ extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN; #define gcc_unreachable() (fancy_abort (__FILE__, __LINE__, __FUNCTION__)) #endif +#if GCC_VERSION >= 7000 && defined(__has_attribute) +# if __has_attribute(fallthrough) +# define gcc_fallthrough() __attribute__((fallthrough)) +# else +# define gcc_fallthrough() +# endif +#else +# define gcc_fallthrough() +#endif + #if GCC_VERSION >= 3001 #define STATIC_CONSTANT_P(X) (__builtin_constant_p (X) && (X)) #else #define STATIC_CONSTANT_P(X) (false && (X)) #endif -/* Until we can use C++11's static_assert. */ +/* static_assert (COND, MESSAGE) is available in C++11 onwards. */ +#if __cplusplus >= 201103L +#define STATIC_ASSERT(X) \ + static_assert ((X), #X) +#else #define STATIC_ASSERT(X) \ typedef int assertion1[(X) ? 1 : -1] ATTRIBUTE_UNUSED +#endif /* Provide a fake boolean type. We make no attempt to use the C99 _Bool, as it may not be available in the bootstrap compiler, @@ -819,7 +840,8 @@ extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN; #ifndef USES_ISL #undef calloc #undef strdup - #pragma GCC poison calloc strdup +#undef strndup + #pragma GCC poison calloc strdup strndup #endif #if !defined(FLEX_SCANNER) && !defined(YYBISON) @@ -881,7 +903,7 @@ extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN; ASM_BYTE_OP MEMBER_TYPE_FORCES_BLK LIBGCC2_HAS_SF_MODE \ LIBGCC2_HAS_DF_MODE LIBGCC2_HAS_XF_MODE LIBGCC2_HAS_TF_MODE \ CLEAR_BY_PIECES_P MOVE_BY_PIECES_P SET_BY_PIECES_P \ - STORE_BY_PIECES_P + STORE_BY_PIECES_P TARGET_FLT_EVAL_METHOD /* Target macros only used for code built for the target, that have moved to libgcc-tm.h or have never been present elsewhere. */ @@ -971,7 +993,9 @@ extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN; EXTRA_ADDRESS_CONSTRAINT CONST_DOUBLE_OK_FOR_CONSTRAINT_P \ CALLER_SAVE_PROFITABLE LARGEST_EXPONENT_IS_NORMAL \ ROUND_TOWARDS_ZERO SF_SIZE DF_SIZE XF_SIZE TF_SIZE LIBGCC2_TF_CEXT \ - LIBGCC2_LONG_DOUBLE_TYPE_SIZE STRUCT_VALUE EH_FRAME_IN_DATA_SECTION + LIBGCC2_LONG_DOUBLE_TYPE_SIZE STRUCT_VALUE \ + EH_FRAME_IN_DATA_SECTION TARGET_FLT_EVAL_METHOD_NON_DEFAULT \ + JCR_SECTION_NAME TARGET_USE_JCR_SECTION /* Hooks that are no longer used. */ #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE \ @@ -987,7 +1011,9 @@ extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN; TARGET_HANDLE_PRAGMA_EXTERN_PREFIX \ TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_EVEN \ TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_ODD \ - TARGET_MD_ASM_CLOBBERS TARGET_RELAXED_ORDERING EXTENDED_SDB_BASIC_TYPES + TARGET_MD_ASM_CLOBBERS TARGET_RELAXED_ORDERING \ + EXTENDED_SDB_BASIC_TYPES TARGET_INVALID_PARAMETER_TYPE \ + TARGET_INVALID_RETURN_TYPE /* Arrays that were deleted in favor of a functional interface. */ #pragma GCC poison built_in_decls implicit_built_in_decls @@ -1115,6 +1141,18 @@ helper_const_non_const_cast (const char *p) #define VALGRIND_FREELIKE_BLOCK(x,y) #endif +/* Macros to temporarily ignore some warnings. */ +#if GCC_VERSION >= 6000 +#define GCC_DIAGNOSTIC_STRINGIFY(x) #x +#define GCC_DIAGNOSTIC_PUSH_IGNORED(x) \ + _Pragma ("GCC diagnostic push") \ + _Pragma (GCC_DIAGNOSTIC_STRINGIFY (GCC diagnostic ignored #x)) +#define GCC_DIAGNOSTIC_POP _Pragma ("GCC diagnostic pop") +#else +#define GCC_DIAGNOSTIC_PUSH_IGNORED(x) +#define GCC_DIAGNOSTIC_POP +#endif + /* In LTO -fwhole-program build we still want to keep the debug functions available for debugger. Mark them as used to prevent removal. */ #if (GCC_VERSION > 4000) |