diff options
Diffstat (limited to 'sysdeps/generic/sigjmp.c')
-rw-r--r-- | sysdeps/generic/sigjmp.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/sysdeps/generic/sigjmp.c b/sysdeps/generic/sigjmp.c new file mode 100644 index 0000000000..b23c547f5e --- /dev/null +++ b/sysdeps/generic/sigjmp.c @@ -0,0 +1,35 @@ +/* Copyright (C) 1992, 1994, 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <stddef.h> +#include <setjmp.h> +#include <signal.h> + +/* This function is called by the `sigsetjmp' macro + before doing a `__setjmp' on ENV[0].__jmpbuf. + Always return zero. */ + +int +__sigjmp_save (sigjmp_buf env, int savemask) +{ + env[0].__mask_was_saved = (savemask && + __sigprocmask (SIG_BLOCK, (sigset_t *) NULL, + &env[0].__saved_mask) == 0); + + return 0; +} |