include/sys/sysmacros.h

   1 /* Definitions of macros to access 'dev_t' values.  Internal header.
   2    Copyright (C) 2018-2020 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 _ISOMAC
  20 # define __SYSMACROS_NEED_IMPLEMENTATION
  21 #endif
  22
  23 #include <misc/sys/sysmacros.h>
  24
  25 #if !defined _SYS_SYSMACROS_H_WRAPPER && !defined _ISOMAC
  26 # define _SYS_SYSMACROS_H_WRAPPER 1
  27
  28 libc_hidden_proto (gnu_dev_major)
  29 libc_hidden_proto (gnu_dev_minor)
  30 libc_hidden_proto (gnu_dev_makedev)
  31
  32 # undef __SYSMACROS_DECL_TEMPL
  33 # define __SYSMACROS_DECL_TEMPL(rtype, name, proto)     \
  34   extern rtype __gnu_dev_##name proto                   \
  35   __THROW __attribute_const__ attribute_hidden;
  36
  37 # undef __SYSMACROS_IMPL_TEMPL
  38 # define __SYSMACROS_IMPL_TEMPL(rtype, name, proto)             \
  39   __extension__ __extern_inline __attribute_const__ rtype       \
  40   __NTH (__gnu_dev_##name proto)
  41
  42 __SYSMACROS_DECLARE_MAJOR (__SYSMACROS_DECL_TEMPL)
  43 __SYSMACROS_DECLARE_MINOR (__SYSMACROS_DECL_TEMPL)
  44 __SYSMACROS_DECLARE_MAKEDEV (__SYSMACROS_DECL_TEMPL)
  45
  46 # ifdef __USE_EXTERN_INLINES
  47 __SYSMACROS_DEFINE_MAJOR (__SYSMACROS_IMPL_TEMPL)
  48 __SYSMACROS_DEFINE_MINOR (__SYSMACROS_IMPL_TEMPL)
  49 __SYSMACROS_DEFINE_MAKEDEV (__SYSMACROS_IMPL_TEMPL)
  50 # endif
  51
  52 #endif