glibc/sysdeps/unix/sysv/linux/x86/tst-saved_mask-1.c
Paul Eggert 2b778ceb40 Update copyright dates with scripts/update-copyrights
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 6694 files FOO.
I then removed trailing white space from benchtests/bench-pthread-locks.c
and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this
diagnostic from Savannah:
remote: *** pre-commit check failed ...
remote: *** error: lines with trailing whitespace found
remote: error: hook declined to update refs/heads/master
2021-01-02 12:17:34 -08:00

56 lines
1.8 KiB
C

/* Test that sigprocmask does not read from the unused part of jmpbuf.
Copyright (C) 2017-2021 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, see
<https://www.gnu.org/licenses/>. */
#include <stdlib.h>
#include <signal.h>
#include <string.h>
#include <errno.h>
#include <setjmpP.h>
#include <support/next_to_fault.h>
#define SIZEOF_SIGSET_T sizeof (__jmp_buf_sigset_t)
static int
do_test (void)
{
sigjmp_buf sj;
struct support_next_to_fault sigset_t_buf
= support_next_to_fault_allocate (SIZEOF_SIGSET_T);
sigset_t *m_p = (sigset_t *) sigset_t_buf.buffer;
sigset_t m;
sigemptyset (&m);
memcpy (m_p, &m, SIZEOF_SIGSET_T);
sigprocmask (SIG_SETMASK, m_p, NULL);
memcpy (&m, m_p, SIZEOF_SIGSET_T);
if (sigsetjmp (sj, 0) == 0)
{
sigaddset (&m, SIGUSR1);
memcpy (m_p, &m, SIZEOF_SIGSET_T);
sigprocmask (SIG_SETMASK, m_p, NULL);
memcpy (&m, m_p, SIZEOF_SIGSET_T);
siglongjmp (sj, 1);
return EXIT_FAILURE;
}
sigprocmask (SIG_SETMASK, NULL, m_p);
memcpy (&m, m_p, SIZEOF_SIGSET_T);
return sigismember (&m, SIGUSR1) ? EXIT_SUCCESS : EXIT_FAILURE;
}
#include <support/test-driver.c>