strace/tests/sigprocmask.c
Dmitry V. Levin c6782f144a tests: change the license to GPL-2.0-or-later
strace test suite is now provided under the terms of the GNU General
Public License version 2 or later, see tests/COPYING for more details.
2018-12-10 00:00:00 +00:00

132 lines
3.8 KiB
C

/*
* Check decoding of sigprocmask syscall.
*
* Copyright (c) 2016-2017 Dmitry V. Levin <ldv@altlinux.org>
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include <asm/unistd.h>
#ifdef __NR_sigprocmask
# include <signal.h>
# include <stdint.h>
# include <stdio.h>
# include <string.h>
# include <unistd.h>
static const char *errstr;
static long
k_sigprocmask(const kernel_ulong_t how, const kernel_ulong_t new_set,
const kernel_ulong_t old_set)
{
const long rc = syscall(__NR_sigprocmask, how, new_set, old_set);
errstr = sprintrc(rc);
return rc;
}
int
main(void)
{
static const kernel_ulong_t sig_block =
(kernel_ulong_t) 0xfacefeed00000000ULL | SIG_BLOCK;
static const kernel_ulong_t sig_unblock =
(kernel_ulong_t) 0xfacefeed00000000ULL | SIG_UNBLOCK;
static const kernel_ulong_t sig_setmask =
(kernel_ulong_t) 0xfacefeed00000000ULL | SIG_SETMASK;
if (k_sigprocmask(sig_setmask, 0, 0))
perror_msg_and_skip("sigprocmask");
puts("sigprocmask(SIG_SETMASK, NULL, NULL) = 0");
TAIL_ALLOC_OBJECT_CONST_PTR(kernel_ulong_t, new_set);
TAIL_ALLOC_OBJECT_CONST_PTR(kernel_ulong_t, old_set);
TAIL_ALLOC_OBJECT_CONST_PTR(sigset_t, libc_set);
memset(new_set, 0, sizeof(*new_set));
k_sigprocmask(sig_setmask, (uintptr_t) new_set, 0);
printf("sigprocmask(SIG_SETMASK, [], NULL) = %s\n", errstr);
k_sigprocmask(sig_unblock,
(uintptr_t) (new_set - 1), (uintptr_t) old_set);
puts("sigprocmask(SIG_UNBLOCK, ~[], []) = 0");
if (F8ILL_KULONG_SUPPORTED) {
k_sigprocmask(sig_unblock, f8ill_ptr_to_kulong(new_set), 0);
printf("sigprocmask(SIG_UNBLOCK, %#jx, NULL) = %s\n",
(uintmax_t) f8ill_ptr_to_kulong(new_set), errstr);
k_sigprocmask(sig_unblock, 0, f8ill_ptr_to_kulong(old_set));
printf("sigprocmask(SIG_UNBLOCK, NULL, %#jx) = %s\n",
(uintmax_t) f8ill_ptr_to_kulong(old_set), errstr);
}
sigemptyset(libc_set);
sigaddset(libc_set, SIGHUP);
memcpy(new_set, libc_set, sizeof(*new_set));
k_sigprocmask(sig_block, (uintptr_t) new_set, (uintptr_t) old_set);
puts("sigprocmask(SIG_BLOCK, [HUP], []) = 0");
memset(libc_set, -1, sizeof(*libc_set));
sigdelset(libc_set, SIGHUP);
memcpy(new_set, libc_set, sizeof(*new_set));
k_sigprocmask(sig_unblock, (uintptr_t) new_set, (uintptr_t) old_set);
puts("sigprocmask(SIG_UNBLOCK, ~[HUP], [HUP]) = 0");
sigdelset(libc_set, SIGKILL);
memcpy(new_set, libc_set, sizeof(*new_set));
k_sigprocmask(sig_unblock, (uintptr_t) new_set, (uintptr_t) old_set);
puts("sigprocmask(SIG_UNBLOCK, ~[HUP KILL], [HUP]) = 0");
sigemptyset(libc_set);
sigaddset(libc_set, SIGHUP);
sigaddset(libc_set, SIGINT);
sigaddset(libc_set, SIGQUIT);
sigaddset(libc_set, SIGALRM);
sigaddset(libc_set, SIGTERM);
memcpy(new_set, libc_set, sizeof(*new_set));
k_sigprocmask(sig_block, (uintptr_t) new_set, (uintptr_t) old_set);
printf("sigprocmask(SIG_BLOCK, %s, [HUP]) = 0\n",
"[HUP INT QUIT ALRM TERM]");
k_sigprocmask(sig_setmask, 0, (uintptr_t) old_set);
printf("sigprocmask(SIG_SETMASK, NULL, %s) = 0\n",
"[HUP INT QUIT ALRM TERM]");
k_sigprocmask(sig_setmask, (uintptr_t) (new_set + 1), 0);
printf("sigprocmask(SIG_SETMASK, %p, NULL) = %s\n",
new_set + 1, errstr);
k_sigprocmask(sig_setmask,
(uintptr_t) new_set, (uintptr_t) (old_set + 1));
printf("sigprocmask(SIG_SETMASK, %s, %p) = %s\n",
"[HUP INT QUIT ALRM TERM]", old_set + 1, errstr);
uintptr_t efault = sizeof(*new_set) / 2 + (uintptr_t) new_set;
k_sigprocmask(sig_setmask, efault, 0);
printf("sigprocmask(SIG_SETMASK, %#jx, NULL) = %s\n",
(uintmax_t) efault, errstr);
k_sigprocmask(sig_setmask, 0, efault);
printf("sigprocmask(SIG_SETMASK, NULL, %#jx) = %s\n",
(uintmax_t) efault, errstr);
puts("+++ exited with 0 +++");
return 0;
}
#else
SKIP_MAIN_UNDEFINED("__NR_sigprocmask")
#endif