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These tests validate that rseq is registered from various execution contexts (main thread, destructor, other threads, other threads created from destructor, forked process (without exec), pthread_atfork handlers, pthread setspecific destructors, signal handlers, atexit handlers). tst-rseq.c only links against libc.so, testing registration of rseq in a non-multithreaded environment. tst-rseq-nptl.c also links against libpthread.so, testing registration of rseq in a multithreaded environment. See the Linux kernel selftests for extensive rseq stress-tests.
65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
/* Restartable Sequences single-threaded tests.
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Copyright (C) 2020 Free Software Foundation, Inc.
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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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/* These tests validate that rseq is registered from main in an executable
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not linked against libpthread. */
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#include <support/check.h>
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#include <stdio.h>
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#include <sys/rseq.h>
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#include <unistd.h>
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#ifdef RSEQ_SIG
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# include <errno.h>
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# include <error.h>
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# include <stdlib.h>
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# include <string.h>
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# include <syscall.h>
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# include "tst-rseq.h"
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static void
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do_rseq_main_test (void)
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{
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TEST_VERIFY_EXIT (rseq_thread_registered ());
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}
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static void
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do_rseq_test (void)
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{
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if (!rseq_available ())
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{
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FAIL_UNSUPPORTED ("kernel does not support rseq, skipping test");
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}
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do_rseq_main_test ();
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}
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#else /* RSEQ_SIG */
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static void
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do_rseq_test (void)
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{
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FAIL_UNSUPPORTED ("glibc does not define RSEQ_SIG, skipping test");
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}
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#endif /* RSEQ_SIG */
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static int
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do_test (void)
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{
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do_rseq_test ();
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return 0;
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}
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#include <support/test-driver.c>
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