2 * Check decoding of prctl PR_GET_PDEATHSIG/PR_SET_PDEATHSIG operations.
4 * Copyright (c) 2016 JingPiao Chen <chenjingpiao@foxmail.com>
5 * Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com>
6 * Copyright (c) 2016-2018 The strace developers.
9 * SPDX-License-Identifier: GPL-2.0-or-later
13 #include <asm/unistd.h>
14 #include <linux/prctl.h>
16 #if defined __NR_prctl && defined PR_GET_PDEATHSIG && defined PR_SET_PDEATHSIG
20 # include <sys/signal.h>
25 static const kernel_ulong_t bogus_signal =
26 (kernel_ulong_t) 0xbadc0deddeadfeedULL;
28 TAIL_ALLOC_OBJECT_CONST_PTR(int, pdeathsig);
31 rc = syscall(__NR_prctl, PR_SET_PDEATHSIG, bogus_signal);
32 printf("prctl(PR_SET_PDEATHSIG, %llu) = %s\n",
33 (unsigned long long) bogus_signal, sprintrc(rc));
35 rc = syscall(__NR_prctl, PR_SET_PDEATHSIG, SIGINT);
36 printf("prctl(PR_SET_PDEATHSIG, SIGINT) = %s\n", sprintrc(rc));
38 rc = syscall(__NR_prctl, PR_GET_PDEATHSIG, NULL);
39 printf("prctl(PR_GET_PDEATHSIG, NULL) = %s\n", sprintrc(rc));
41 rc = syscall(__NR_prctl, PR_GET_PDEATHSIG, pdeathsig + 1);
42 printf("prctl(PR_GET_PDEATHSIG, %p) = %s\n",
43 pdeathsig + 1, sprintrc(rc));
45 rc = syscall(__NR_prctl, PR_GET_PDEATHSIG, pdeathsig);
47 printf("prctl(PR_GET_PDEATHSIG, %p) = %s\n",
48 pdeathsig, sprintrc(rc));
50 printf("prctl(PR_GET_PDEATHSIG, [SIGINT]) = %s\n",
54 puts("+++ exited with 0 +++");
60 SKIP_MAIN_UNDEFINED("__NR_prctl && PR_GET_PDEATHSIG && PR_SET_PDEATHSIG")