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111 lines
3.9 KiB
C
111 lines
3.9 KiB
C
/* Definitions of macros to access `dev_t' values.
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Copyright (C) 1996-2017 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef _SYS_SYSMACROS_H_OUTER
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#ifndef __SYSMACROS_DEPRECATED_INCLUSION
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# define _SYS_SYSMACROS_H_OUTER 1
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#endif
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/* If <sys/sysmacros.h> is included after <sys/types.h>, these macros
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will already be defined, and we need to redefine them without the
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deprecation warnings. (If they are included in the opposite order,
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the outer #ifndef will suppress this entire file and the macros
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will be usable without warnings.) */
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#undef major
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#undef minor
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#undef makedev
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/* This is the macro that must be defined to satisfy the misuse check
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in bits/sysmacros.h. */
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#ifndef _SYS_SYSMACROS_H
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#define _SYS_SYSMACROS_H 1
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#include <features.h>
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#include <bits/types.h>
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#include <bits/sysmacros.h>
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/* Caution: The text of this deprecation message is unquoted, so that
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#symbol can be substituted. (It is converted to a string by
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__SYSMACROS_DM1.) This means the message must be a sequence of
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complete pp-tokens; in particular, English contractions (it's,
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can't) cannot be used.
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The message has been manually word-wrapped to fit in 80 columns
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when output by GCC 5 and 6. The first line is shorter to leave
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some room for the "foo.c:23: warning:" annotation. */
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#define __SYSMACROS_DM(symbol) __SYSMACROS_DM1 \
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(In the GNU C Library, #symbol is defined\n\
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by <sys/sysmacros.h>. For historical compatibility, it is\n\
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currently defined by <sys/types.h> as well, but we plan to\n\
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remove this soon. To use #symbol, include <sys/sysmacros.h>\n\
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directly. If you did not intend to use a system-defined macro\n\
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#symbol, you should undefine it after including <sys/types.h>.)
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/* This macro is variadic because the deprecation message above
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contains commas. */
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#define __SYSMACROS_DM1(...) __glibc_macro_warning (#__VA_ARGS__)
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#define __SYSMACROS_DECL_TEMPL(rtype, name, proto) \
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extern rtype gnu_dev_##name proto __THROW __attribute_const__;
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#define __SYSMACROS_IMPL_TEMPL(rtype, name, proto) \
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__extension__ __extern_inline __attribute_const__ rtype \
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__NTH (gnu_dev_##name proto)
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__BEGIN_DECLS
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__SYSMACROS_DECLARE_MAJOR (__SYSMACROS_DECL_TEMPL)
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__SYSMACROS_DECLARE_MINOR (__SYSMACROS_DECL_TEMPL)
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__SYSMACROS_DECLARE_MAKEDEV (__SYSMACROS_DECL_TEMPL)
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#ifdef __USE_EXTERN_INLINES
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__SYSMACROS_DEFINE_MAJOR (__SYSMACROS_IMPL_TEMPL)
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__SYSMACROS_DEFINE_MINOR (__SYSMACROS_IMPL_TEMPL)
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__SYSMACROS_DEFINE_MAKEDEV (__SYSMACROS_IMPL_TEMPL)
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#endif
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__END_DECLS
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#endif /* _SYS_SYSMACROS_H */
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#ifndef __SYSMACROS_NEED_IMPLEMENTATION
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# undef __SYSMACROS_DECL_TEMPL
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# undef __SYSMACROS_IMPL_TEMPL
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# undef __SYSMACROS_DECLARE_MAJOR
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# undef __SYSMACROS_DECLARE_MINOR
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# undef __SYSMACROS_DECLARE_MAKEDEV
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# undef __SYSMACROS_DEFINE_MAJOR
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# undef __SYSMACROS_DEFINE_MINOR
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# undef __SYSMACROS_DEFINE_MAKEDEV
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#endif
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#ifdef __SYSMACROS_DEPRECATED_INCLUSION
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# define major(dev) __SYSMACROS_DM (major) gnu_dev_major (dev)
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# define minor(dev) __SYSMACROS_DM (minor) gnu_dev_minor (dev)
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# define makedev(maj, min) __SYSMACROS_DM (makedev) gnu_dev_makedev (maj, min)
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#else
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# define major(dev) gnu_dev_major (dev)
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# define minor(dev) gnu_dev_minor (dev)
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# define makedev(maj, min) gnu_dev_makedev (maj, min)
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#endif
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#endif /* sys/sysmacros.h */
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