sysdeps/powerpc/novmx-sigjmp.c

   1 /* Copyright (C) 1992, 1994, 1997, 2003, 2004 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 /* Copy of sysdeps/generic/sigjmp.c modified for backward compatibility
  20    with old non AltiVec/VMX setjmp.  */
  21
  22 #include <bits/wordsize.h>
  23 #include <shlib-compat.h>
  24 #if !defined NOT_IN_libc && defined SHARED
  25 # if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3_4)
  26 #  include <stddef.h>
  27 #  include <novmxsetjmp.h>
  28 #  include <signal.h>
  29
  30 /* This function is called by the `sigsetjmp' macro
  31    before doing a `__setjmp' on ENV[0].__jmpbuf.
  32    Always return zero.  */
  33
  34 int
  35 __novmx__sigjmp_save (__novmx__sigjmp_buf env, int savemask)
  36 {
  37   env[0].__mask_was_saved = (savemask &&
  38                              __sigprocmask (SIG_BLOCK, (sigset_t *) NULL,
  39                                             &env[0].__saved_mask) == 0);
  40
  41   return 0;
  42 }
  43
  44 # endif /* SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3_4) */
  45 #endif /* !NOT_IN_libc && SHARED  */