mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-22 21:10:07 +00:00
111 lines
3.9 KiB
C
111 lines
3.9 KiB
C
/* Definitions of macros to access `dev_t' values.
|
|
Copyright (C) 1996-2017 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 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.
|
|
|
|
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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#ifndef _SYS_SYSMACROS_H_OUTER
|
|
|
|
#ifndef __SYSMACROS_DEPRECATED_INCLUSION
|
|
# define _SYS_SYSMACROS_H_OUTER 1
|
|
#endif
|
|
|
|
/* If <sys/sysmacros.h> is included after <sys/types.h>, these macros
|
|
will already be defined, and we need to redefine them without the
|
|
deprecation warnings. (If they are included in the opposite order,
|
|
the outer #ifndef will suppress this entire file and the macros
|
|
will be usable without warnings.) */
|
|
#undef major
|
|
#undef minor
|
|
#undef makedev
|
|
|
|
/* This is the macro that must be defined to satisfy the misuse check
|
|
in bits/sysmacros.h. */
|
|
#ifndef _SYS_SYSMACROS_H
|
|
#define _SYS_SYSMACROS_H 1
|
|
|
|
#include <features.h>
|
|
#include <bits/types.h>
|
|
#include <bits/sysmacros.h>
|
|
|
|
/* Caution: The text of this deprecation message is unquoted, so that
|
|
#symbol can be substituted. (It is converted to a string by
|
|
__SYSMACROS_DM1.) This means the message must be a sequence of
|
|
complete pp-tokens; in particular, English contractions (it's,
|
|
can't) cannot be used.
|
|
|
|
The message has been manually word-wrapped to fit in 80 columns
|
|
when output by GCC 5 and 6. The first line is shorter to leave
|
|
some room for the "foo.c:23: warning:" annotation. */
|
|
#define __SYSMACROS_DM(symbol) __SYSMACROS_DM1 \
|
|
(In the GNU C Library, #symbol is defined\n\
|
|
by <sys/sysmacros.h>. For historical compatibility, it is\n\
|
|
currently defined by <sys/types.h> as well, but we plan to\n\
|
|
remove this soon. To use #symbol, include <sys/sysmacros.h>\n\
|
|
directly. If you did not intend to use a system-defined macro\n\
|
|
#symbol, you should undefine it after including <sys/types.h>.)
|
|
|
|
/* This macro is variadic because the deprecation message above
|
|
contains commas. */
|
|
#define __SYSMACROS_DM1(...) __glibc_macro_warning (#__VA_ARGS__)
|
|
|
|
#define __SYSMACROS_DECL_TEMPL(rtype, name, proto) \
|
|
extern rtype gnu_dev_##name proto __THROW __attribute_const__;
|
|
|
|
#define __SYSMACROS_IMPL_TEMPL(rtype, name, proto) \
|
|
__extension__ __extern_inline __attribute_const__ rtype \
|
|
__NTH (gnu_dev_##name proto)
|
|
|
|
__BEGIN_DECLS
|
|
|
|
__SYSMACROS_DECLARE_MAJOR (__SYSMACROS_DECL_TEMPL)
|
|
__SYSMACROS_DECLARE_MINOR (__SYSMACROS_DECL_TEMPL)
|
|
__SYSMACROS_DECLARE_MAKEDEV (__SYSMACROS_DECL_TEMPL)
|
|
|
|
#ifdef __USE_EXTERN_INLINES
|
|
|
|
__SYSMACROS_DEFINE_MAJOR (__SYSMACROS_IMPL_TEMPL)
|
|
__SYSMACROS_DEFINE_MINOR (__SYSMACROS_IMPL_TEMPL)
|
|
__SYSMACROS_DEFINE_MAKEDEV (__SYSMACROS_IMPL_TEMPL)
|
|
|
|
#endif
|
|
|
|
__END_DECLS
|
|
|
|
#endif /* _SYS_SYSMACROS_H */
|
|
|
|
#ifndef __SYSMACROS_NEED_IMPLEMENTATION
|
|
# undef __SYSMACROS_DECL_TEMPL
|
|
# undef __SYSMACROS_IMPL_TEMPL
|
|
# undef __SYSMACROS_DECLARE_MAJOR
|
|
# undef __SYSMACROS_DECLARE_MINOR
|
|
# undef __SYSMACROS_DECLARE_MAKEDEV
|
|
# undef __SYSMACROS_DEFINE_MAJOR
|
|
# undef __SYSMACROS_DEFINE_MINOR
|
|
# undef __SYSMACROS_DEFINE_MAKEDEV
|
|
#endif
|
|
|
|
#ifdef __SYSMACROS_DEPRECATED_INCLUSION
|
|
# define major(dev) __SYSMACROS_DM (major) gnu_dev_major (dev)
|
|
# define minor(dev) __SYSMACROS_DM (minor) gnu_dev_minor (dev)
|
|
# define makedev(maj, min) __SYSMACROS_DM (makedev) gnu_dev_makedev (maj, min)
|
|
#else
|
|
# define major(dev) gnu_dev_major (dev)
|
|
# define minor(dev) gnu_dev_minor (dev)
|
|
# define makedev(maj, min) gnu_dev_makedev (maj, min)
|
|
#endif
|
|
|
|
#endif /* sys/sysmacros.h */
|