Line data    Source code

       1             : /* Definitions of macros to access `dev_t' values.
       2             :    Copyright (C) 1996-2022 Free Software Foundation, Inc.
       3             :    This file is part of the GNU C Library.
       4             : 
       5             :    The GNU C Library is free software; you can redistribute it and/or
       6             :    modify it under the terms of the GNU Lesser General Public
       7             :    License as published by the Free Software Foundation; either
       8             :    version 2.1 of the License, or (at your option) any later version.
       9             : 
      10             :    The GNU C Library is distributed in the hope that it will be useful,
      11             :    but WITHOUT ANY WARRANTY; without even the implied warranty of
      12             :    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      13             :    Lesser General Public License for more details.
      14             : 
      15             :    You should have received a copy of the GNU Lesser General Public
      16             :    License along with the GNU C Library; if not, see
      17             :    <https://www.gnu.org/licenses/>.  */
      18             : 
      19             : #ifndef _SYS_SYSMACROS_H
      20             : #define _SYS_SYSMACROS_H 1
      21             : 
      22             : #include <features.h>
      23             : #include <bits/types.h>
      24             : #include <bits/sysmacros.h>
      25             : 
      26             : #define __SYSMACROS_DECL_TEMPL(rtype, name, proto)                           \
      27             :   extern rtype gnu_dev_##name proto __THROW __attribute_const__;
      28             : 
      29             : #define __SYSMACROS_IMPL_TEMPL(rtype, name, proto)                           \
      30             :   __extension__ __extern_inline __attribute_const__ rtype                    \
      31             :   __NTH (gnu_dev_##name proto)
      32             : 
      33             : __BEGIN_DECLS
      34             : 
      35             : __SYSMACROS_DECLARE_MAJOR (__SYSMACROS_DECL_TEMPL)
      36             : __SYSMACROS_DECLARE_MINOR (__SYSMACROS_DECL_TEMPL)
      37             : __SYSMACROS_DECLARE_MAKEDEV (__SYSMACROS_DECL_TEMPL)
      38             : 
      39             : #ifdef __USE_EXTERN_INLINES
      40             : 
      41           0 : __SYSMACROS_DEFINE_MAJOR (__SYSMACROS_IMPL_TEMPL)
      42           0 : __SYSMACROS_DEFINE_MINOR (__SYSMACROS_IMPL_TEMPL)
      43           0 : __SYSMACROS_DEFINE_MAKEDEV (__SYSMACROS_IMPL_TEMPL)
      44             : 
      45             : #endif
      46             : 
      47             : __END_DECLS
      48             : 
      49             : #ifndef __SYSMACROS_NEED_IMPLEMENTATION
      50             : # undef __SYSMACROS_DECL_TEMPL
      51             : # undef __SYSMACROS_IMPL_TEMPL
      52             : # undef __SYSMACROS_DECLARE_MAJOR
      53             : # undef __SYSMACROS_DECLARE_MINOR
      54             : # undef __SYSMACROS_DECLARE_MAKEDEV
      55             : # undef __SYSMACROS_DEFINE_MAJOR
      56             : # undef __SYSMACROS_DEFINE_MINOR
      57             : # undef __SYSMACROS_DEFINE_MAKEDEV
      58             : #endif
      59             : 
      60             : #define major(dev) gnu_dev_major (dev)
      61             : #define minor(dev) gnu_dev_minor (dev)
      62             : #define makedev(maj, min) gnu_dev_makedev (maj, min)
      63             : 
      64             : #endif /* sys/sysmacros.h */