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/* Internal test to verify __libc_fatal.
Copyright (C) 2025 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 <signal.h>
#include <stdio.h>
#include <support/check.h>
#include <support/capture_subprocess.h>
static _Noreturn void
run_libc_message (void *closure)
{
/* We only support 4 arguments. Call with 5 to trigger failure. */
__libc_message_impl ("%s %s %s %s %s\n", "1", "2", "3", "4", "5");
__builtin_unreachable ();
}
static int
do_test (void)
{
struct support_capture_subprocess result
= support_capture_subprocess (run_libc_message, NULL);
support_capture_subprocess_check (&result, "libc_message", -SIGABRT,
sc_allow_stderr);
TEST_COMPARE_STRING (result.err.buffer, IOVEC_MAX_ERR_MSG);
support_capture_subprocess_free (&result);
return 0;
}
#include <support/test-driver.c>
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