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/* Restartable Sequences single-threaded tests.
Copyright (C) 2021-2022 Free Software Foundation, Inc.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
/* These tests validate that rseq is registered from main in an executable
not linked against libpthread. */
#include <support/check.h>
#include <stdio.h>
#include <sys/rseq.h>
#include <unistd.h>
#ifdef RSEQ_SIG
# include <errno.h>
# include <error.h>
# include <stdlib.h>
# include <string.h>
# include <syscall.h>
# include <sys/auxv.h>
# include <thread_pointer.h>
# include <tls.h>
# include "tst-rseq.h"
static void
do_rseq_main_test (void)
{
struct pthread *pd = THREAD_SELF;
TEST_VERIFY_EXIT (rseq_thread_registered ());
TEST_COMPARE (__rseq_flags, 0);
TEST_VERIFY ((char *) __thread_pointer () + __rseq_offset
== (char *) &pd->rseq_area);
/* The current implementation only supports the initial size. */
TEST_COMPARE (__rseq_size, 20);
}
static void
do_rseq_test (void)
{
if (!rseq_available ())
{
FAIL_UNSUPPORTED ("kernel does not support rseq, skipping test");
}
printf ("info: __rseq_size: %u\n", __rseq_size);
printf ("info: __rseq_offset: %td\n", __rseq_offset);
printf ("info: __rseq_flags: %u\n", __rseq_flags);
printf ("info: getauxval (AT_RSEQ_FEATURE_SIZE): %ld\n",
getauxval (AT_RSEQ_FEATURE_SIZE));
printf ("info: getauxval (AT_RSEQ_ALIGN): %ld\n", getauxval (AT_RSEQ_ALIGN));
do_rseq_main_test ();
}
#else /* RSEQ_SIG */
static void
do_rseq_test (void)
{
FAIL_UNSUPPORTED ("glibc does not define RSEQ_SIG, skipping test");
}
#endif /* RSEQ_SIG */
static int
do_test (void)
{
do_rseq_test ();
return 0;
}
#include <support/test-driver.c>
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