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71 lines
2.3 KiB
C
71 lines
2.3 KiB
C
/* Test support for single-thread optimizations. No threads.
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Copyright (C) 2020-2025 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <stddef.h>
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#include <stdio.h>
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#include <support/check.h>
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#include <support/namespace.h>
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#include <support/xdlfcn.h>
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#include <sys/single_threaded.h>
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/* Defined in tst-single-threaded-mod1.so. */
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extern _Bool single_threaded_1 (void);
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/* Initialized via dlsym. */
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_Bool (*single_threaded_2) (void);
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_Bool (*single_threaded_3) (void);
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static void
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subprocess (void *closure)
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{
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TEST_VERIFY (__libc_single_threaded);
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TEST_VERIFY (single_threaded_1 ());
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if (single_threaded_2 != NULL)
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TEST_VERIFY (single_threaded_2 ());
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if (single_threaded_3 != NULL)
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TEST_VERIFY (!single_threaded_3 ());
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}
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static int
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do_test (void)
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{
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TEST_VERIFY (__libc_single_threaded);
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TEST_VERIFY (single_threaded_1 ());
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support_isolate_in_subprocess (subprocess, NULL);
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void *handle_mod2 = xdlopen ("tst-single_threaded-mod2.so", RTLD_LAZY);
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single_threaded_2 = xdlsym (handle_mod2, "single_threaded_2");
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TEST_VERIFY (single_threaded_2 ());
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support_isolate_in_subprocess (subprocess, NULL);
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/* The current implementation treats the inner namespace as
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multi-threaded. */
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void *handle_mod3 = dlmopen (LM_ID_NEWLM, "tst-single_threaded-mod3.so",
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RTLD_LAZY);
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single_threaded_3 = xdlsym (handle_mod3, "single_threaded_3");
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TEST_VERIFY (!single_threaded_3 ());
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support_isolate_in_subprocess (subprocess, NULL);
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xdlclose (handle_mod3);
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xdlclose (handle_mod2);
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return 0;
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}
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#include <support/test-driver.c>
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