mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-25 06:20:06 +00:00
566e10aa72
The upper bits of the sigset_t s not fully initialized in the signal mask calls that return information from kernel (sigprocmask, sigpending, and pthread_sigmask), since the exported sigset_t size (1024 bits) is larger than Linux support one (64 or 128 bits). It might make sigisemptyset/sigorset/sigandset fail if the mask is filled prior the call. This patch changes the internal signal function to handle up to supported Linux signal number (_NSIG), the remaining bits are untouched. Checked on x86_64-linux-gnu and i686-linux-gnu.
96 lines
2.2 KiB
C
96 lines
2.2 KiB
C
/* Tests for sigisemptyset/sigorset/sigandset.
|
|
Copyright (C) 2020 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 <signal.h>
|
|
|
|
#include <support/check.h>
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
{
|
|
sigset_t set;
|
|
sigemptyset (&set);
|
|
TEST_COMPARE (sigisemptyset (&set), 1);
|
|
}
|
|
|
|
{
|
|
sigset_t set;
|
|
sigfillset (&set);
|
|
TEST_COMPARE (sigisemptyset (&set), 0);
|
|
}
|
|
|
|
{
|
|
sigset_t setfill, setempty, set;
|
|
sigfillset (&setfill);
|
|
sigemptyset (&setempty);
|
|
|
|
sigorset (&set, &setfill, &setempty);
|
|
TEST_COMPARE (sigisemptyset (&set), 0);
|
|
|
|
sigandset (&set, &setfill, &setempty);
|
|
TEST_COMPARE (sigisemptyset (&set), 1);
|
|
}
|
|
|
|
/* Ensure current SIG_BLOCK mask empty. */
|
|
{
|
|
sigset_t set;
|
|
sigemptyset (&set);
|
|
TEST_COMPARE (sigprocmask (SIG_BLOCK, &set, 0), 0);
|
|
}
|
|
|
|
{
|
|
sigset_t set;
|
|
sigemptyset (&set);
|
|
TEST_COMPARE (sigprocmask (SIG_BLOCK, 0, &set), 0);
|
|
TEST_COMPARE (sigisemptyset (&set), 1);
|
|
}
|
|
|
|
{
|
|
sigset_t set;
|
|
sigfillset (&set);
|
|
TEST_COMPARE (sigprocmask (SIG_BLOCK, 0, &set), 0);
|
|
TEST_COMPARE (sigisemptyset (&set), 1);
|
|
}
|
|
|
|
/* Block all signals. */
|
|
{
|
|
sigset_t set;
|
|
sigfillset (&set);
|
|
TEST_COMPARE (sigprocmask (SIG_BLOCK, &set, 0), 0);
|
|
}
|
|
|
|
{
|
|
sigset_t set;
|
|
sigemptyset (&set);
|
|
TEST_COMPARE (sigpending (&set), 0);
|
|
TEST_COMPARE (sigisemptyset (&set), 1);
|
|
}
|
|
|
|
{
|
|
sigset_t set;
|
|
sigfillset (&set);
|
|
TEST_COMPARE (sigpending (&set), 0);
|
|
TEST_COMPARE (sigisemptyset (&set), 1);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#include <support/test-driver.c>
|