glibc/elf/tst-single_threaded.c
Paul Eggert 2b778ceb40 Update copyright dates with scripts/update-copyrights
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
2021-01-02 12:17:34 -08:00

71 lines
2.3 KiB
C

/* Test support for single-thread optimizations. No threads.
Copyright (C) 2020-2021 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 <stddef.h>
#include <stdio.h>
#include <support/check.h>
#include <support/namespace.h>
#include <support/xdlfcn.h>
#include <sys/single_threaded.h>
/* Defined in tst-single-threaded-mod1.so. */
extern _Bool single_threaded_1 (void);
/* Initialized via dlsym. */
_Bool (*single_threaded_2) (void);
_Bool (*single_threaded_3) (void);
static void
subprocess (void *closure)
{
TEST_VERIFY (__libc_single_threaded);
TEST_VERIFY (single_threaded_1 ());
if (single_threaded_2 != NULL)
TEST_VERIFY (single_threaded_2 ());
if (single_threaded_3 != NULL)
TEST_VERIFY (!single_threaded_3 ());
}
static int
do_test (void)
{
TEST_VERIFY (__libc_single_threaded);
TEST_VERIFY (single_threaded_1 ());
support_isolate_in_subprocess (subprocess, NULL);
void *handle_mod2 = xdlopen ("tst-single_threaded-mod2.so", RTLD_LAZY);
single_threaded_2 = xdlsym (handle_mod2, "single_threaded_2");
TEST_VERIFY (single_threaded_2 ());
support_isolate_in_subprocess (subprocess, NULL);
/* The current implementation treats the inner namespace as
multi-threaded. */
void *handle_mod3 = dlmopen (LM_ID_NEWLM, "tst-single_threaded-mod3.so",
RTLD_LAZY);
single_threaded_3 = xdlsym (handle_mod3, "single_threaded_3");
TEST_VERIFY (!single_threaded_3 ());
support_isolate_in_subprocess (subprocess, NULL);
xdlclose (handle_mod3);
xdlclose (handle_mod2);
return 0;
}
#include <support/test-driver.c>