2 * Copyright (c) 2016 JingPiao Chen <chenjingpiao@foxmail.com>
3 * Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 #include <asm/unistd.h>
31 #include <linux/prctl.h>
33 #if defined __NR_prctl && defined PR_GET_PDEATHSIG && defined PR_SET_PDEATHSIG
37 # include <sys/signal.h>
39 # include "kernel_types.h"
44 static const kernel_ulong_t bogus_signal =
45 (kernel_ulong_t) 0xbadc0deddeadfeedULL;
47 int *pdeathsig = tail_alloc(sizeof(*pdeathsig));
50 rc = syscall(__NR_prctl, PR_SET_PDEATHSIG, bogus_signal);
51 printf("prctl(PR_SET_PDEATHSIG, %llu) = %s\n",
52 (unsigned long long) bogus_signal, sprintrc(rc));
54 rc = syscall(__NR_prctl, PR_SET_PDEATHSIG, SIGINT);
55 printf("prctl(PR_SET_PDEATHSIG, SIGINT) = %s\n", sprintrc(rc));
57 rc = syscall(__NR_prctl, PR_GET_PDEATHSIG, NULL);
58 printf("prctl(PR_GET_PDEATHSIG, NULL) = %s\n", sprintrc(rc));
60 rc = syscall(__NR_prctl, PR_GET_PDEATHSIG, pdeathsig + 1);
61 printf("prctl(PR_GET_PDEATHSIG, %p) = %s\n",
62 pdeathsig + 1, sprintrc(rc));
64 rc = syscall(__NR_prctl, PR_GET_PDEATHSIG, pdeathsig);
66 printf("prctl(PR_GET_PDEATHSIG, %p) = %s\n",
67 pdeathsig, sprintrc(rc));
69 printf("prctl(PR_GET_PDEATHSIG, [SIGINT]) = %s\n",
73 puts("+++ exited with 0 +++");
79 SKIP_MAIN_UNDEFINED("__NR_prctl && PR_GET_PDEATHSIG && PR_SET_PDEATHSIG")