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glibc  2.9
novmx-sigjmp.c
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00001 /* Copyright (C) 1992, 1994, 1997, 2003, 2004 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003 
00004    The GNU C Library is free software; you can redistribute it and/or
00005    modify it under the terms of the GNU Lesser General Public
00006    License as published by the Free Software Foundation; either
00007    version 2.1 of the License, or (at your option) any later version.
00008 
00009    The GNU C Library is distributed in the hope that it will be useful,
00010    but WITHOUT ANY WARRANTY; without even the implied warranty of
00011    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012    Lesser General Public License for more details.
00013 
00014    You should have received a copy of the GNU Lesser General Public
00015    License along with the GNU C Library; if not, write to the Free
00016    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00017    02111-1307 USA.  */
00018 
00019 /* Copy of sysdeps/generic/sigjmp.c modified for backward compatibility
00020    with old non AltiVec/VMX setjmp.  */
00021 
00022 #include <bits/wordsize.h>
00023 #include <shlib-compat.h>
00024 #if !defined NOT_IN_libc && defined SHARED
00025 # if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3_4)
00026 #  include <stddef.h>
00027 #  include <novmxsetjmp.h>
00028 #  include <signal.h>
00029 
00030 /* This function is called by the `sigsetjmp' macro
00031    before doing a `__setjmp' on ENV[0].__jmpbuf.
00032    Always return zero.  */
00033 
00034 int
00035 __novmx__sigjmp_save (__novmx__sigjmp_buf env, int savemask)
00036 {
00037   env[0].__mask_was_saved = (savemask &&
00038                           __sigprocmask (SIG_BLOCK, (sigset_t *) NULL,
00039                                        &env[0].__saved_mask) == 0);
00040 
00041   return 0;
00042 }
00043 
00044 # endif /* SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3_4) */
00045 #endif /* !NOT_IN_libc && SHARED  */