diff options
Diffstat (limited to 'elf/tst-single_threaded.c')
-rw-r--r-- | elf/tst-single_threaded.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/elf/tst-single_threaded.c b/elf/tst-single_threaded.c new file mode 100644 index 0000000000..2c36342779 --- /dev/null +++ b/elf/tst-single_threaded.c @@ -0,0 +1,70 @@ +/* Test support for single-thread optimizations. No threads. + Copyright (C) 2020 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> |