sysdeps/mach/hurd/malloc-machine.h

   1 /* Basic platform-independent macro definitions for mutexes,
   2    thread-specific data and parameters for malloc.
   3    Copyright (C) 2003-2016 Free Software Foundation, Inc.
   4    This file is part of the GNU C Library.
   5
   6    The GNU C 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    The GNU C 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
  17    License along with the GNU C Library; if not, see
  18    <http://www.gnu.org/licenses/>.  */
  19
  20 #ifndef _MALLOC_MACHINE_H
  21 #define _MALLOC_MACHINE_H
  22
  23 #include <atomic.h>
  24 #include <libc-lock.h>
  25
  26 /* Assume hurd, with cthreads */
  27
  28 /* Cthreads `mutex_t' is a pointer to a mutex, and malloc wants just the
  29    mutex itself.  */
  30 #undef mutex_t
  31 #define mutex_t struct mutex
  32
  33 #undef mutex_init
  34 #define mutex_init(m) ({ __mutex_init(m); 0; })
  35
  36 #undef mutex_lock
  37 #define mutex_lock(m) ({ __mutex_lock(m); 0; })
  38
  39 #undef mutex_unlock
  40 #define mutex_unlock(m) ({ __mutex_unlock(m); 0; })
  41
  42 #define mutex_trylock(m) (!__mutex_trylock(m))
  43
  44 /* No we're *not* using pthreads.  */
  45 #define __pthread_initialize ((void (*)(void))0)
  46
  47 /* madvise is a stub on Hurd, so don't bother calling it.  */
  48
  49 #include <sys/mman.h>
  50
  51 #undef  __madvise
  52 #define __madvise(addr, len, advice)    \
  53   ((void) (addr), (void) (len), (void) (advice))
  54
  55 #include <sysdeps/generic/malloc-machine.h>
  56
  57 #endif /* !defined(_MALLOC_MACHINE_H) */