linuxthreads/sysdeps/pthread/sigaction.c

   1 /* Copyright (C) 2003 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
   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, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 /* This is tricky.  GCC doesn't like #include_next in the primary
  21    source file and even if it did, the first #include_next is this
  22    exact file anyway.  */
  23 #ifndef LIBC_SIGACTION
  24
  25 # include <bits/libc-lock.h>
  26
  27 # define LIBC_SIGACTION 1
  28
  29 # include <linuxthreads/sysdeps/pthread/sigaction.c>
  30
  31 # ifndef NOT_IN_libc
  32 #  ifndef SHARED
  33 weak_extern (__pthread_sigaction)
  34 #  endif
  35
  36 int
  37 __sigaction (sig, act, oact)
  38      int sig;
  39      const struct sigaction *act;
  40      struct sigaction *oact;
  41 {
  42   return __libc_maybe_call2 (pthread_sigaction, (sig, act, oact),
  43                              __libc_sigaction (sig, act, oact));
  44 }
  45 # else
  46 weak_alias (__libc_sigaction, __sigaction)
  47 # endif
  48 libc_hidden_weak (__sigaction)
  49 weak_alias (__sigaction, sigaction)
  50
  51 #else
  52
  53 # include_next <sigaction.c>
  54
  55 #endif /* LIBC_SIGACTION */