| /* Definitions of macros to access `dev_t' values. |
| Copyright (C) 1996-2018 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 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 */ |