mirror of
https://github.com/openharmony/third_party_elfutils.git
synced 2026-07-19 19:43:34 -04:00
Mark Wielaard
cc74c21c0d
Some systems might have "restricted ptrace" that doesn't allow process inspection of arbitrary processes. Change the deleted testcase to explicitly allow any other process to inspect it using the PR_SET_PTRACER prctl set to PR_SET_PTRACER_ANY. Change the vdsosyms testcase to inspect the process itself which should always be allowed. Reported-by: Anatol Pomozov <anatol.pomozov@gmail.com> Signed-off-by: Mark Wielaard <mjw@redhat.com>
57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
/* Test program for opening already deleted running binaries.
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Copyright (C) 2014 Red Hat, Inc.
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This file is part of elfutils.
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This file is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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elfutils is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <config.h>
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#include <locale.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <assert.h>
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#include <stdio.h>
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#include <error.h>
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#include <errno.h>
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#include <sys/prctl.h>
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extern void libfunc (void);
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int
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main (int argc __attribute__ ((unused)), char **argv __attribute__ ((unused)))
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{
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/* Set locale. */
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(void) setlocale (LC_ALL, "");
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pid_t pid = fork ();
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assert (pid != -1);
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if (pid == 0)
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{
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int err = close (0);
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assert (!err);
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err = close (1);
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assert (!err);
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err = close (2);
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assert (!err);
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/* Make sure eu-stack -p works on this process even with
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"restricted ptrace". */
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#ifdef PR_SET_PTRACER_ANY
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prctl(PR_SET_PTRACER, PR_SET_PTRACER_ANY, 0, 0, 0);
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#endif
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libfunc ();
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abort ();
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}
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printf ("%d\n", pid);
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return EXIT_SUCCESS;
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}
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