mirror of
git://sourceware.org/git/glibc.git
synced 2025-03-06 20:58:33 +01:00
2e456ccf0c
The __rseq_size value is now the active area of struct rseq (so 20 initially), not the full struct size including padding at the end (32 initially). Update misc/tst-rseq to print some additional diagnostics. Reviewed-by: Michael Jeanson <mjeanson@efficios.com> Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
80 lines
2.3 KiB
C
80 lines
2.3 KiB
C
/* Restartable Sequences single-threaded tests.
|
|
Copyright (C) 2021-2024 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>
|