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45 lines
1.5 KiB
C
45 lines
1.5 KiB
C
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/* Copyright (C) 1992-2013 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>.
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Copied from setjmp/sigjmp.c for extending jmp_buf. */
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#include <bits/wordsize.h>
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#include <shlib-compat.h>
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#if !defined NOT_IN_libc && defined SHARED
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# if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_19)
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# include <stddef.h>
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# include <v1-setjmp.h>
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# include <signal.h>
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/* This function is called by the `sigsetjmp' macro
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before doing a `__setjmp' on ENV[0].__jmpbuf.
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Always return zero. */
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int
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__v1__sigjmp_save (__v1__sigjmp_buf env, int savemask)
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{
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env[0].__mask_was_saved = (savemask &&
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__sigprocmask (SIG_BLOCK, (sigset_t *) NULL,
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&env[0].__saved_mask) == 0);
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return 0;
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}
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# endif /* SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_19) */
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#endif /* !NOT_IN_libc && SHARED */
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