mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-22 13:00:06 +00:00
2b778ceb40
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 6694 files FOO. I then removed trailing white space from benchtests/bench-pthread-locks.c and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this diagnostic from Savannah: remote: *** pre-commit check failed ... remote: *** error: lines with trailing whitespace found remote: error: hook declined to update refs/heads/master
116 lines
3.4 KiB
C
116 lines
3.4 KiB
C
/* Verify atexit, on_exit, etc. abort on NULL function pointer.
|
|
Copyright (C) 2018-2021 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
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/>. */
|
|
|
|
|
|
#include <assert.h>
|
|
#include <signal.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <support/capture_subprocess.h>
|
|
#include <support/check.h>
|
|
#include <support/support.h>
|
|
#include <support/test-driver.h>
|
|
|
|
extern int __cxa_atexit (void (*func) (void *), void *arg, void *d);
|
|
extern int __cxa_at_quick_exit (void (*func) (void *), void *arg, void *d);
|
|
|
|
/* GCC "knows" that atexit and on_exit should not be called with NULL
|
|
function pointer, and emits diagnostics if we try to do so.
|
|
Presumably it could emit a trap and drop the call altogether.
|
|
|
|
The aliases below are intended to bypass this. */
|
|
|
|
extern int atexit_alias (void (*) (void)) __asm__ ("atexit");
|
|
extern int at_quick_exit_alias (void (*) (void)) __asm__ ("at_quick_exit");
|
|
extern int on_exit_alias (void (*) (void), void *) __asm__ ("on_exit");
|
|
|
|
|
|
static void
|
|
test_bz20544_atexit (void *closure)
|
|
{
|
|
atexit_alias (NULL); /* Should assert. */
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
|
|
static void
|
|
test_bz20544_at_quick_exit (void *closure)
|
|
{
|
|
at_quick_exit_alias (NULL); /* Should assert. */
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
|
|
static void
|
|
test_bz20544_on_exit (void *closure)
|
|
{
|
|
on_exit_alias (NULL, NULL); /* Should assert. */
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
|
|
static void
|
|
test_bz20544_cxa_atexit (void *closure)
|
|
{
|
|
__cxa_atexit (NULL, NULL, NULL); /* Should assert. */
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
|
|
static void
|
|
test_bz20544_cxa_at_quick_exit (void *closure)
|
|
{
|
|
__cxa_at_quick_exit (NULL, NULL, NULL); /* Should assert. */
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
|
|
static void
|
|
test_one_fn (void (*test_fn) (void *))
|
|
{
|
|
const char expected_error[] = "Assertion `func != NULL' failed.\n";
|
|
struct support_capture_subprocess result;
|
|
result = support_capture_subprocess (test_fn, NULL);
|
|
support_capture_subprocess_check (&result, "bz20544", -SIGABRT,
|
|
sc_allow_stderr);
|
|
|
|
if (strstr (result.err.buffer, expected_error) == NULL)
|
|
{
|
|
support_record_failure ();
|
|
printf ("Did not find expected string in error output:\n"
|
|
" expected: >>>%s<<<\n"
|
|
" actual: >>>%s<<<\n",
|
|
expected_error, result.err.buffer);
|
|
}
|
|
|
|
support_capture_subprocess_free (&result);
|
|
}
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
#if defined (NDEBUG)
|
|
FAIL_UNSUPPORTED ("Assertions disabled (NDEBUG). "
|
|
"Can't verify that assertions fire.");
|
|
#endif
|
|
test_one_fn (test_bz20544_atexit);
|
|
test_one_fn (test_bz20544_at_quick_exit);
|
|
test_one_fn (test_bz20544_on_exit);
|
|
test_one_fn (test_bz20544_cxa_atexit);
|
|
test_one_fn (test_bz20544_cxa_at_quick_exit);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#include <support/test-driver.c>
|