src/lxc/compiler.h

   1 /* liblxcapi
   2  *
   3  * Copyright © 2018 Christian Brauner <christian.brauner@ubuntu.com>.
   4  * Copyright © 2018 Canonical Ltd.
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15
  16  * You should have received a copy of the GNU Lesser General Public License
  17  * along with this library; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  19  */
  20
  21 #ifndef __LXC_COMPILER_H
  22 #define __LXC_COMPILER_H
  23
  24 #ifndef _GNU_SOURCE
  25 #define _GNU_SOURCE 1
  26 #endif
  27
  28 #include "config.h"
  29
  30 #ifndef thread_local
  31 #if __STDC_VERSION__ >= 201112L &&    \
  32     !(defined(__STDC_NO_THREADS__) || \
  33       (defined(__GNU_LIBRARY__) && __GLIBC__ == 2 && __GLIBC_MINOR__ < 16))
  34 #define thread_local _Thread_local
  35 #else
  36 #define thread_local __thread
  37 #endif
  38 #endif
  39
  40 #ifndef __fallthrough
  41 #define __fallthrough /* fall through */
  42 #endif
  43
  44 #ifndef __noreturn
  45 #       if __STDC_VERSION__ >= 201112L
  46 #               if !IS_BIONIC
  47 #                       define __noreturn _Noreturn
  48 #               else
  49 #                       define __noreturn __attribute__((__noreturn__))
  50 #               endif
  51 #       elif IS_BIONIC
  52 #               define __noreturn __attribute__((__noreturn__))
  53 #       else
  54 #               define __noreturn __attribute__((noreturn))
  55 #       endif
  56 #endif
  57
  58 #ifndef __hot
  59 #       define __hot __attribute__((hot))
  60 #endif
  61
  62 #ifndef __returns_twice
  63 #define __returns_twice __attribute__((returns_twice))
  64 #endif
  65
  66 #define __cgfsng_ops
  67
  68 #endif /* __LXC_COMPILER_H */