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https://sourceware.org/git/glibc.git
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16c6a89c17
Post review removal of "goto restart" from
https://sourceware.org/pipermail/libc-alpha/2021-April/125470.html
introduced a bug when some atexit handers skipped.
Signed-off-by: Vitaly Buka <vitalybuka@google.com>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
(cherry picked from commit fd78cfa72e)
76 lines
1.7 KiB
C
76 lines
1.7 KiB
C
/* Support file for atexit/exit, etc. race tests (BZ #27749).
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Copyright (C) 2023 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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/* Check that atexit handler registed from another handler still called. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <support/check.h>
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#include <support/xunistd.h>
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#include <sys/wait.h>
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#include <unistd.h>
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static void
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atexit_cb (void)
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{
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}
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static void
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atexit_last (void)
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{
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_exit (1);
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}
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static void
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atexit_recursive (void)
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{
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atexit (&atexit_cb);
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atexit (&atexit_last);
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}
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_Noreturn static void
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test_and_exit (int count)
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{
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for (int i = 0; i < count; ++i)
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atexit (&atexit_cb);
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atexit (&atexit_recursive);
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exit (0);
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}
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static int
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do_test (void)
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{
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for (int i = 0; i < 100; ++i)
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if (xfork () == 0)
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test_and_exit (i);
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for (int i = 0; i < 100; ++i)
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{
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int status;
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xwaitpid (0, &status, 0);
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if (!WIFEXITED (status))
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FAIL_EXIT1 ("Failed iterations %d", i);
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TEST_COMPARE (WEXITSTATUS (status), 1);
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}
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return 0;
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}
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#define TEST_FUNCTION do_test
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#include <support/test-driver.c>
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