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Diffstat (limited to 'gdb/gnulib/import/cdefs.h')
| -rw-r--r-- | gdb/gnulib/import/cdefs.h | 508 |
1 files changed, 0 insertions, 508 deletions
diff --git a/gdb/gnulib/import/cdefs.h b/gdb/gnulib/import/cdefs.h deleted file mode 100644 index 235ca62..0000000 --- a/gdb/gnulib/import/cdefs.h +++ /dev/null @@ -1,508 +0,0 @@ -/* Copyright (C) 1992-2018 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU General Public - License as published by the Free Software Foundation; either - version 3 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - General Public License for more details. - - You should have received a copy of the GNU General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -#ifndef _SYS_CDEFS_H -#define _SYS_CDEFS_H 1 - -/* We are almost always included from features.h. */ -#ifndef _FEATURES_H -# include <features.h> -#endif - -/* The GNU libc does not support any K&R compilers or the traditional mode - of ISO C compilers anymore. Check for some of the combinations not - anymore supported. */ -#if defined __GNUC__ && !defined __STDC__ -# error "You need a ISO C conforming compiler to use the glibc headers" -#endif - -/* Some user header file might have defined this before. */ -#undef __P -#undef __PMT - -#ifdef __GNUC__ - -/* All functions, except those with callbacks or those that - synchronize memory, are leaf functions. */ -# if __GNUC_PREREQ (4, 6) && !defined _LIBC -# define __LEAF , __leaf__ -# define __LEAF_ATTR __attribute__ ((__leaf__)) -# else -# define __LEAF -# define __LEAF_ATTR -# endif - -/* GCC can always grok prototypes. For C++ programs we add throw() - to help it optimize the function calls. But this works only with - gcc 2.8.x and egcs. For gcc 3.2 and up we even mark C functions - as non-throwing using a function attribute since programs can use - the -fexceptions options for C code as well. */ -# if !defined __cplusplus && __GNUC_PREREQ (3, 3) -# define __THROW __attribute__ ((__nothrow__ __LEAF)) -# define __THROWNL __attribute__ ((__nothrow__)) -# define __NTH(fct) __attribute__ ((__nothrow__ __LEAF)) fct -# define __NTHNL(fct) __attribute__ ((__nothrow__)) fct -# else -# if defined __cplusplus && __GNUC_PREREQ (2,8) -# define __THROW throw () -# define __THROWNL throw () -# define __NTH(fct) __LEAF_ATTR fct throw () -# define __NTHNL(fct) fct throw () -# else -# define __THROW -# define __THROWNL -# define __NTH(fct) fct -# define __NTHNL(fct) fct -# endif -# endif - -#else /* Not GCC. */ - -# if (defined __cplusplus \ - || (defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L)) -# define __inline inline -# else -# define __inline /* No inline functions. */ -# endif - -# define __THROW -# define __THROWNL -# define __NTH(fct) fct - -#endif /* GCC. */ - -/* Compilers that are not clang may object to - #if defined __clang__ && __has_extension(...) - even though they do not need to evaluate the right-hand side of the &&. */ -#if defined __clang__ && defined __has_extension -# define __glibc_clang_has_extension(ext) __has_extension (ext) -#else -# define __glibc_clang_has_extension(ext) 0 -#endif - -/* These two macros are not used in glibc anymore. They are kept here - only because some other projects expect the macros to be defined. */ -#define __P(args) args -#define __PMT(args) args - -/* For these things, GCC behaves the ANSI way normally, - and the non-ANSI way under -traditional. */ - -#define __CONCAT(x,y) x ## y -#define __STRING(x) #x - -/* This is not a typedef so `const __ptr_t' does the right thing. */ -#define __ptr_t void * - - -/* C++ needs to know that types and declarations are C, not C++. */ -#ifdef __cplusplus -# define __BEGIN_DECLS extern "C" { -# define __END_DECLS } -#else -# define __BEGIN_DECLS -# define __END_DECLS -#endif - - -/* Fortify support. */ -#define __bos(ptr) __builtin_object_size (ptr, __USE_FORTIFY_LEVEL > 1) -#define __bos0(ptr) __builtin_object_size (ptr, 0) - -#if __GNUC_PREREQ (4,3) -# define __warndecl(name, msg) \ - extern void name (void) __attribute__((__warning__ (msg))) -# define __warnattr(msg) __attribute__((__warning__ (msg))) -# define __errordecl(name, msg) \ - extern void name (void) __attribute__((__error__ (msg))) -#else -# define __warndecl(name, msg) extern void name (void) -# define __warnattr(msg) -# define __errordecl(name, msg) extern void name (void) -#endif - -/* Support for flexible arrays. - Headers that should use flexible arrays only if they're "real" - (e.g. only if they won't affect sizeof()) should test - #if __glibc_c99_flexarr_available. */ -#if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L -# define __flexarr [] -# define __glibc_c99_flexarr_available 1 -#elif __GNUC_PREREQ (2,97) -/* GCC 2.97 supports C99 flexible array members as an extension, - even when in C89 mode or compiling C++ (any version). */ -# define __flexarr [] -# define __glibc_c99_flexarr_available 1 -#elif defined __GNUC__ -/* Pre-2.97 GCC did not support C99 flexible arrays but did have - an equivalent extension with slightly different notation. */ -# define __flexarr [0] -# define __glibc_c99_flexarr_available 1 -#else -/* Some other non-C99 compiler. Approximate with [1]. */ -# define __flexarr [1] -# define __glibc_c99_flexarr_available 0 -#endif - - -/* __asm__ ("xyz") is used throughout the headers to rename functions - at the assembly language level. This is wrapped by the __REDIRECT - macro, in order to support compilers that can do this some other - way. When compilers don't support asm-names at all, we have to do - preprocessor tricks instead (which don't have exactly the right - semantics, but it's the best we can do). - - Example: - int __REDIRECT(setpgrp, (__pid_t pid, __pid_t pgrp), setpgid); */ - -#if defined __GNUC__ && __GNUC__ >= 2 - -# define __REDIRECT(name, proto, alias) name proto __asm__ (__ASMNAME (#alias)) -# ifdef __cplusplus -# define __REDIRECT_NTH(name, proto, alias) \ - name proto __THROW __asm__ (__ASMNAME (#alias)) -# define __REDIRECT_NTHNL(name, proto, alias) \ - name proto __THROWNL __asm__ (__ASMNAME (#alias)) -# else -# define __REDIRECT_NTH(name, proto, alias) \ - name proto __asm__ (__ASMNAME (#alias)) __THROW -# define __REDIRECT_NTHNL(name, proto, alias) \ - name proto __asm__ (__ASMNAME (#alias)) __THROWNL -# endif -# define __ASMNAME(cname) __ASMNAME2 (__USER_LABEL_PREFIX__, cname) -# define __ASMNAME2(prefix, cname) __STRING (prefix) cname - -/* -#elif __SOME_OTHER_COMPILER__ - -# define __REDIRECT(name, proto, alias) name proto; \ - _Pragma("let " #name " = " #alias) -*/ -#endif - -/* GCC has various useful declarations that can be made with the - `__attribute__' syntax. All of the ways we use this do fine if - they are omitted for compilers that don't understand it. */ -#if !defined __GNUC__ || __GNUC__ < 2 -# define __attribute__(xyz) /* Ignore */ -#endif - -/* At some point during the gcc 2.96 development the `malloc' attribute - for functions was introduced. We don't want to use it unconditionally - (although this would be possible) since it generates warnings. */ -#if __GNUC_PREREQ (2,96) -# define __attribute_malloc__ __attribute__ ((__malloc__)) -#else -# define __attribute_malloc__ /* Ignore */ -#endif - -/* Tell the compiler which arguments to an allocation function - indicate the size of the allocation. */ -#if __GNUC_PREREQ (4, 3) -# define __attribute_alloc_size__(params) \ - __attribute__ ((__alloc_size__ params)) -#else -# define __attribute_alloc_size__(params) /* Ignore. */ -#endif - -/* At some point during the gcc 2.96 development the `pure' attribute - for functions was introduced. We don't want to use it unconditionally - (although this would be possible) since it generates warnings. */ -#if __GNUC_PREREQ (2,96) -# define __attribute_pure__ __attribute__ ((__pure__)) -#else -# define __attribute_pure__ /* Ignore */ -#endif - -/* This declaration tells the compiler that the value is constant. */ -#if __GNUC_PREREQ (2,5) -# define __attribute_const__ __attribute__ ((__const__)) -#else -# define __attribute_const__ /* Ignore */ -#endif - -/* At some point during the gcc 3.1 development the `used' attribute - for functions was introduced. We don't want to use it unconditionally - (although this would be possible) since it generates warnings. */ -#if __GNUC_PREREQ (3,1) -# define __attribute_used__ __attribute__ ((__used__)) -# define __attribute_noinline__ __attribute__ ((__noinline__)) -#else -# define __attribute_used__ __attribute__ ((__unused__)) -# define __attribute_noinline__ /* Ignore */ -#endif - -/* Since version 3.2, gcc allows marking deprecated functions. */ -#if __GNUC_PREREQ (3,2) -# define __attribute_deprecated__ __attribute__ ((__deprecated__)) -#else -# define __attribute_deprecated__ /* Ignore */ -#endif - -/* Since version 4.5, gcc also allows one to specify the message printed - when a deprecated function is used. clang claims to be gcc 4.2, but - may also support this feature. */ -#if __GNUC_PREREQ (4,5) || \ - __glibc_clang_has_extension (__attribute_deprecated_with_message__) -# define __attribute_deprecated_msg__(msg) \ - __attribute__ ((__deprecated__ (msg))) -#else -# define __attribute_deprecated_msg__(msg) __attribute_deprecated__ -#endif - -/* At some point during the gcc 2.8 development the `format_arg' attribute - for functions was introduced. We don't want to use it unconditionally - (although this would be possible) since it generates warnings. - If several `format_arg' attributes are given for the same function, in - gcc-3.0 and older, all but the last one are ignored. In newer gccs, - all designated arguments are considered. */ -#if __GNUC_PREREQ (2,8) -# define __attribute_format_arg__(x) __attribute__ ((__format_arg__ (x))) -#else -# define __attribute_format_arg__(x) /* Ignore */ -#endif - -/* At some point during the gcc 2.97 development the `strfmon' format - attribute for functions was introduced. We don't want to use it - unconditionally (although this would be possible) since it - generates warnings. */ -#if __GNUC_PREREQ (2,97) -# define __attribute_format_strfmon__(a,b) \ - __attribute__ ((__format__ (__strfmon__, a, b))) -#else -# define __attribute_format_strfmon__(a,b) /* Ignore */ -#endif - -/* The nonnull function attribute marks pointer parameters that - must not be NULL. Do not define __nonnull if it is already defined, - for portability when this file is used in Gnulib. */ -#ifndef __nonnull -# if __GNUC_PREREQ (3,3) -# define __nonnull(params) __attribute__ ((__nonnull__ params)) -# else -# define __nonnull(params) -# endif -#endif - -/* If fortification mode, we warn about unused results of certain - function calls which can lead to problems. */ -#if __GNUC_PREREQ (3,4) -# define __attribute_warn_unused_result__ \ - __attribute__ ((__warn_unused_result__)) -# if defined __USE_FORTIFY_LEVEL && __USE_FORTIFY_LEVEL > 0 -# define __wur __attribute_warn_unused_result__ -# endif -#else -# define __attribute_warn_unused_result__ /* empty */ -#endif -#ifndef __wur -# define __wur /* Ignore */ -#endif - -/* Forces a function to be always inlined. */ -#if __GNUC_PREREQ (3,2) -/* The Linux kernel defines __always_inline in stddef.h (283d7573), and - it conflicts with this definition. Therefore undefine it first to - allow either header to be included first. */ -# undef __always_inline -# define __always_inline __inline __attribute__ ((__always_inline__)) -#else -# undef __always_inline -# define __always_inline __inline -#endif - -/* Associate error messages with the source location of the call site rather - than with the source location inside the function. */ -#if __GNUC_PREREQ (4,3) -# define __attribute_artificial__ __attribute__ ((__artificial__)) -#else -# define __attribute_artificial__ /* Ignore */ -#endif - -/* GCC 4.3 and above with -std=c99 or -std=gnu99 implements ISO C99 - inline semantics, unless -fgnu89-inline is used. Using __GNUC_STDC_INLINE__ - or __GNUC_GNU_INLINE is not a good enough check for gcc because gcc versions - older than 4.3 may define these macros and still not guarantee GNU inlining - semantics. - - clang++ identifies itself as gcc-4.2, but has support for GNU inlining - semantics, that can be checked fot by using the __GNUC_STDC_INLINE_ and - __GNUC_GNU_INLINE__ macro definitions. */ -#if (!defined __cplusplus || __GNUC_PREREQ (4,3) \ - || (defined __clang__ && (defined __GNUC_STDC_INLINE__ \ - || defined __GNUC_GNU_INLINE__))) -# if defined __GNUC_STDC_INLINE__ || defined __cplusplus -# define __extern_inline extern __inline __attribute__ ((__gnu_inline__)) -# define __extern_always_inline \ - extern __always_inline __attribute__ ((__gnu_inline__)) -# else -# define __extern_inline extern __inline -# define __extern_always_inline extern __always_inline -# endif -#endif - -#ifdef __extern_always_inline -# define __fortify_function __extern_always_inline __attribute_artificial__ -#endif - -/* GCC 4.3 and above allow passing all anonymous arguments of an - __extern_always_inline function to some other vararg function. */ -#if __GNUC_PREREQ (4,3) -# define __va_arg_pack() __builtin_va_arg_pack () -# define __va_arg_pack_len() __builtin_va_arg_pack_len () -#endif - -/* It is possible to compile containing GCC extensions even if GCC is - run in pedantic mode if the uses are carefully marked using the - `__extension__' keyword. But this is not generally available before - version 2.8. */ -#if !__GNUC_PREREQ (2,8) -# define __extension__ /* Ignore */ -#endif - -/* __restrict is known in EGCS 1.2 and above. */ -#if !__GNUC_PREREQ (2,92) -# if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L -# define __restrict restrict -# else -# define __restrict /* Ignore */ -# endif -#endif - -/* ISO C99 also allows to declare arrays as non-overlapping. The syntax is - array_name[restrict] - GCC 3.1 supports this. */ -#if __GNUC_PREREQ (3,1) && !defined __GNUG__ -# define __restrict_arr __restrict -#else -# ifdef __GNUC__ -# define __restrict_arr /* Not supported in old GCC. */ -# else -# if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L -# define __restrict_arr restrict -# else -/* Some other non-C99 compiler. */ -# define __restrict_arr /* Not supported. */ -# endif -# endif -#endif - -#if __GNUC__ >= 3 -# define __glibc_unlikely(cond) __builtin_expect ((cond), 0) -# define __glibc_likely(cond) __builtin_expect ((cond), 1) -#else -# define __glibc_unlikely(cond) (cond) -# define __glibc_likely(cond) (cond) -#endif - -#if (!defined _Noreturn \ - && (defined __STDC_VERSION__ ? __STDC_VERSION__ : 0) < 201112 \ - && !__GNUC_PREREQ (4,7)) -# if __GNUC_PREREQ (2,8) -# define _Noreturn __attribute__ ((__noreturn__)) -# else -# define _Noreturn -# endif -#endif - -#if __GNUC_PREREQ (8, 0) -/* Describes a char array whose address can safely be passed as the first - argument to strncpy and strncat, as the char array is not necessarily - a NUL-terminated string. */ -# define __attribute_nonstring__ __attribute__ ((__nonstring__)) -#else -# define __attribute_nonstring__ -#endif - -#if (!defined _Static_assert && !defined __cplusplus \ - && (defined __STDC_VERSION__ ? __STDC_VERSION__ : 0) < 201112 \ - && (!__GNUC_PREREQ (4, 6) || defined __STRICT_ANSI__)) -# define _Static_assert(expr, diagnostic) \ - extern int (*__Static_assert_function (void)) \ - [!!sizeof (struct { int __error_if_negative: (expr) ? 2 : -1; })] -#endif - -/* The #ifndef lets Gnulib avoid including these on non-glibc - platforms, where the includes typically do not exist. */ -#ifndef __WORDSIZE -# include <bits/wordsize.h> -# include <bits/long-double.h> -#endif - -#if defined __LONG_DOUBLE_MATH_OPTIONAL && defined __NO_LONG_DOUBLE_MATH -# define __LDBL_COMPAT 1 -# ifdef __REDIRECT -# define __LDBL_REDIR1(name, proto, alias) __REDIRECT (name, proto, alias) -# define __LDBL_REDIR(name, proto) \ - __LDBL_REDIR1 (name, proto, __nldbl_##name) -# define __LDBL_REDIR1_NTH(name, proto, alias) __REDIRECT_NTH (name, proto, alias) -# define __LDBL_REDIR_NTH(name, proto) \ - __LDBL_REDIR1_NTH (name, proto, __nldbl_##name) -# define __LDBL_REDIR1_DECL(name, alias) \ - extern __typeof (name) name __asm (__ASMNAME (#alias)); -# define __LDBL_REDIR_DECL(name) \ - extern __typeof (name) name __asm (__ASMNAME ("__nldbl_" #name)); -# define __REDIRECT_LDBL(name, proto, alias) \ - __LDBL_REDIR1 (name, proto, __nldbl_##alias) -# define __REDIRECT_NTH_LDBL(name, proto, alias) \ - __LDBL_REDIR1_NTH (name, proto, __nldbl_##alias) -# endif -#endif -#if !defined __LDBL_COMPAT || !defined __REDIRECT -# define __LDBL_REDIR1(name, proto, alias) name proto -# define __LDBL_REDIR(name, proto) name proto -# define __LDBL_REDIR1_NTH(name, proto, alias) name proto __THROW -# define __LDBL_REDIR_NTH(name, proto) name proto __THROW -# define __LDBL_REDIR_DECL(name) -# ifdef __REDIRECT -# define __REDIRECT_LDBL(name, proto, alias) __REDIRECT (name, proto, alias) -# define __REDIRECT_NTH_LDBL(name, proto, alias) \ - __REDIRECT_NTH (name, proto, alias) -# endif -#endif - -/* __glibc_macro_warning (MESSAGE) issues warning MESSAGE. This is - intended for use in preprocessor macros. - - Note: MESSAGE must be a _single_ string; concatenation of string - literals is not supported. */ -#if __GNUC_PREREQ (4,8) || __glibc_clang_prereq (3,5) -# define __glibc_macro_warning1(message) _Pragma (#message) -# define __glibc_macro_warning(message) \ - __glibc_macro_warning1 (GCC warning message) -#else -# define __glibc_macro_warning(msg) -#endif - -/* Generic selection (ISO C11) is a C-only feature, available in GCC - since version 4.9. Previous versions do not provide generic - selection, even though they might set __STDC_VERSION__ to 201112L, - when in -std=c11 mode. Thus, we must check for !defined __GNUC__ - when testing __STDC_VERSION__ for generic selection support. - On the other hand, Clang also defines __GNUC__, so a clang-specific - check is required to enable the use of generic selection. */ -#if !defined __cplusplus \ - && (__GNUC_PREREQ (4, 9) \ - || __glibc_clang_has_extension (c_generic_selections) \ - || (!defined __GNUC__ && defined __STDC_VERSION__ \ - && __STDC_VERSION__ >= 201112L)) -# define __HAVE_GENERIC_SELECTION 1 -#else -# define __HAVE_GENERIC_SELECTION 0 -#endif - -#endif /* sys/cdefs.h */ |