203 lines
6.1 KiB
C
203 lines
6.1 KiB
C
|
/* System definitions for code taken from the GNU C Library
|
||
|
|
|
||
|
|
Copyright 2017-2022 Free Software Foundation, Inc.
|
||
|
|
|
||
|
|
This program is free software; you can redistribute it and/or
|
||
|
|
modify it under the terms of the GNU Lesser General Public
|
||
|
|
License as published by the Free Software Foundation; either
|
||
|
|
version 2.1 of the License, or (at your option) any later version.
|
||
|
|
|
||
|
|
This program 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
|
||
|
|
Lesser General Public License for more details.
|
||
|
|
|
||
|
|
You should have received a copy of the GNU Lesser General Public
|
||
|
|
License along with this program; if not, see
|
||
|
|
<https://www.gnu.org/licenses/>. */
|
||
|
|
|
||
|
|
/* Written by Paul Eggert. */
|
||
|
|
|
||
|
|
/* This is intended to be a good-enough substitute for glibc system
|
||
|
|
macros like those defined in <sys/cdefs.h>, so that Gnulib code
|
||
|
|
shared with glibc can do this as the first #include:
|
||
|
|
|
||
|
|
#ifndef _LIBC
|
||
|
|
# include <libc-config.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
When compiled as part of glibc this is a no-op; when compiled as
|
||
|
|
part of Gnulib this includes Gnulib's <config.h> and defines macros
|
||
|
|
that glibc library code would normally assume.
|
||
|
|
|
||
|
|
Note: This header file MUST NOT be included by public header files
|
||
|
|
of Gnulib. */
|
||
|
|
|
||
|
|
#include <config.h>
|
||
|
|
|
||
|
|
/* On glibc this includes <features.h> and <sys/cdefs.h> and #defines
|
||
|
|
_FEATURES_H, __WORDSIZE, and __set_errno. On FreeBSD 11 and
|
||
|
|
DragonFlyBSD 5.9 it includes <sys/cdefs.h> which defines __nonnull.
|
||
|
|
Elsewhere it is harmless. */
|
||
|
|
#include <errno.h>
|
||
|
|
|
||
|
|
/* From glibc <errno.h>. */
|
||
|
|
#ifndef __set_errno
|
||
|
|
# define __set_errno(val) (errno = (val))
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* From glibc <features.h>. */
|
||
|
|
|
||
|
|
#ifndef __GNUC_PREREQ
|
||
|
|
# if defined __GNUC__ && defined __GNUC_MINOR__
|
||
|
|
# define __GNUC_PREREQ(maj, min) ((maj) < __GNUC__ + ((min) <= __GNUC_MINOR__))
|
||
|
|
# else
|
||
|
|
# define __GNUC_PREREQ(maj, min) 0
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef __glibc_clang_prereq
|
||
|
|
# if defined __clang_major__ && defined __clang_minor__
|
||
|
|
# ifdef __apple_build_version__
|
||
|
|
/* Apple for some reason renumbers __clang_major__ and __clang_minor__.
|
||
|
|
Gnulib code uses only __glibc_clang_prereq (3, 5); map it to
|
||
|
|
6000000 <= __apple_build_version__. Support for other calls to
|
||
|
|
__glibc_clang_prereq can be added here as needed. */
|
||
|
|
# define __glibc_clang_prereq(maj, min) \
|
||
|
|
((maj) == 3 && (min) == 5 ? 6000000 <= __apple_build_version__ : 0)
|
||
|
|
# else
|
||
|
|
# define __glibc_clang_prereq(maj, min) \
|
||
|
|
((maj) < __clang_major__ + ((min) <= __clang_minor__))
|
||
|
|
# endif
|
||
|
|
# else
|
||
|
|
# define __glibc_clang_prereq(maj, min) 0
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef __attribute_nonnull__
|
||
|
|
/* <sys/cdefs.h> either does not exist, or is too old for Gnulib.
|
||
|
|
Prepare to include <cdefs.h>, which is Gnulib's version of a
|
||
|
|
more-recent glibc <sys/cdefs.h>. */
|
||
|
|
|
||
|
|
/* Define _FEATURES_H so that <cdefs.h> does not include <features.h>. */
|
||
|
|
# ifndef _FEATURES_H
|
||
|
|
# define _FEATURES_H 1
|
||
|
|
# endif
|
||
|
|
/* Define __GNULIB_CDEFS so that <cdefs.h> does not attempt to include
|
||
|
|
nonexistent files. */
|
||
|
|
# define __GNULIB_CDEFS
|
||
|
|
/* Undef the macros unconditionally defined by our copy of glibc
|
||
|
|
<sys/cdefs.h>, so that they do not clash with any system-defined
|
||
|
|
versions. */
|
||
|
|
# undef _SYS_CDEFS_H
|
||
|
|
# undef __ASMNAME
|
||
|
|
# undef __ASMNAME2
|
||
|
|
# undef __BEGIN_DECLS
|
||
|
|
# undef __CONCAT
|
||
|
|
# undef __END_DECLS
|
||
|
|
# undef __HAVE_GENERIC_SELECTION
|
||
|
|
# undef __LDBL_COMPAT
|
||
|
|
# undef __LDBL_REDIR
|
||
|
|
# undef __LDBL_REDIR1
|
||
|
|
# undef __LDBL_REDIR1_DECL
|
||
|
|
# undef __LDBL_REDIR1_NTH
|
||
|
|
# undef __LDBL_REDIR2_DECL
|
||
|
|
# undef __LDBL_REDIR_DECL
|
||
|
|
# undef __LDBL_REDIR_NTH
|
||
|
|
# undef __LEAF
|
||
|
|
# undef __LEAF_ATTR
|
||
|
|
# undef __NTH
|
||
|
|
# undef __NTHNL
|
||
|
|
# undef __REDIRECT
|
||
|
|
# undef __REDIRECT_LDBL
|
||
|
|
# undef __REDIRECT_NTH
|
||
|
|
# undef __REDIRECT_NTHNL
|
||
|
|
# undef __REDIRECT_NTH_LDBL
|
||
|
|
# undef __STRING
|
||
|
|
# undef __THROW
|
||
|
|
# undef __THROWNL
|
||
|
|
# undef __attr_access
|
||
|
|
# undef __attr_access_none
|
||
|
|
# undef __attr_dealloc
|
||
|
|
# undef __attr_dealloc_free
|
||
|
|
# undef __attribute__
|
||
|
|
# undef __attribute_alloc_align__
|
||
|
|
# undef __attribute_alloc_size__
|
||
|
|
# undef __attribute_artificial__
|
||
|
|
# undef __attribute_const__
|
||
|
|
# undef __attribute_deprecated__
|
||
|
|
# undef __attribute_deprecated_msg__
|
||
|
|
# undef __attribute_format_arg__
|
||
|
|
# undef __attribute_format_strfmon__
|
||
|
|
# undef __attribute_malloc__
|
||
|
|
# undef __attribute_maybe_unused__
|
||
|
|
# undef __attribute_noinline__
|
||
|
|
# undef __attribute_nonstring__
|
||
|
|
# undef __attribute_pure__
|
||
|
|
# undef __attribute_returns_twice__
|
||
|
|
# undef __attribute_used__
|
||
|
|
# undef __attribute_warn_unused_result__
|
||
|
|
# undef __bos
|
||
|
|
# undef __bos0
|
||
|
|
# undef __errordecl
|
||
|
|
# undef __extension__
|
||
|
|
# undef __extern_always_inline
|
||
|
|
# undef __extern_inline
|
||
|
|
# undef __flexarr
|
||
|
|
# undef __fortified_attr_access
|
||
|
|
# undef __fortify_function
|
||
|
|
# undef __glibc_c99_flexarr_available
|
||
|
|
# undef __glibc_fortify
|
||
|
|
# undef __glibc_fortify_n
|
||
|
|
# undef __glibc_has_attribute
|
||
|
|
# undef __glibc_has_builtin
|
||
|
|
# undef __glibc_has_extension
|
||
|
|
# undef __glibc_likely
|
||
|
|
# undef __glibc_macro_warning
|
||
|
|
# undef __glibc_macro_warning1
|
||
|
|
# undef __glibc_objsize
|
||
|
|
# undef __glibc_objsize0
|
||
|
|
# undef __glibc_safe_len_cond
|
||
|
|
# undef __glibc_safe_or_unknown_len
|
||
|
|
# undef __glibc_unlikely
|
||
|
|
# undef __glibc_unsafe_len
|
||
|
|
# undef __glibc_unsigned_or_positive
|
||
|
|
# undef __inline
|
||
|
|
# undef __ptr_t
|
||
|
|
# undef __restrict
|
||
|
|
# undef __restrict_arr
|
||
|
|
# undef __va_arg_pack
|
||
|
|
# undef __va_arg_pack_len
|
||
|
|
# undef __warnattr
|
||
|
|
# undef __wur
|
||
|
|
|
||
|
|
/* Include our copy of glibc <sys/cdefs.h>. */
|
||
|
|
# include <cdefs.h>
|
||
|
|
|
||
|
|
/* <cdefs.h> __inline is too pessimistic for non-GCC. */
|
||
|
|
# undef __inline
|
||
|
|
# ifndef HAVE___INLINE
|
||
|
|
# if 199901 <= __STDC_VERSION__ || defined inline
|
||
|
|
# define __inline inline
|
||
|
|
# else
|
||
|
|
# define __inline
|
||
|
|
# endif
|
||
|
|
# endif
|
||
|
|
|
||
|
|
#endif /* defined __glibc_likely */
|
||
|
|
|
||
|
|
|
||
|
|
/* A substitute for glibc <libc-symbols.h>, good enough for Gnulib. */
|
||
|
|
#define attribute_hidden
|
||
|
|
#define libc_hidden_proto(name)
|
||
|
|
#define libc_hidden_def(name)
|
||
|
|
#define libc_hidden_weak(name)
|
||
|
|
#define libc_hidden_ver(local, name)
|
||
|
|
#define strong_alias(name, aliasname)
|
||
|
|
#define weak_alias(name, aliasname)
|
||
|
|
|
||
|
|
/* A substitute for glibc <shlib-compat.h>, good enough for Gnulib. */
|
||
|
|
#define SHLIB_COMPAT(lib, introduced, obsoleted) 0
|
||
|
|
#define compat_symbol(lib, local, symbol, version) extern int dummy
|
||
|
|
#define versioned_symbol(lib, local, symbol, version) extern int dummy
|