sysdeps/powerpc/novmx-sigjmp.c

   1 /* Copyright (C) 1992-2015 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, see
  16    <http://www.gnu.org/licenses/>.  */
  17
  18 /* Copy of sysdeps/generic/sigjmp.c modified for backward compatibility
  19    with old non AltiVec/VMX setjmp.  */
  20
  21 #include <bits/wordsize.h>
  22 #include <shlib-compat.h>
  23 #if IS_IN (libc) && defined SHARED
  24 # if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3_4)
  25 #  include <stddef.h>
  26 #  include <novmxsetjmp.h>
  27 #  include <signal.h>
  28
  29 /* This function is called by the `sigsetjmp' macro
  30    before doing a `__setjmp' on ENV[0].__jmpbuf.
  31    Always return zero.  */
  32
  33 int
  34 __novmx__sigjmp_save (__novmx__sigjmp_buf env, int savemask)
  35 {
  36   env[0].__mask_was_saved = (savemask &&
  37                              __sigprocmask (SIG_BLOCK, (sigset_t *) NULL,
  38                                             &env[0].__saved_mask) == 0);
  39
  40   return 0;
  41 }
  42
  43 # endif /* SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3_4) */
  44 #endif /* IS_IN (libc) && SHARED  */