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author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2020-02-10 01:21:46 +0000 |
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committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2020-02-10 01:21:46 +0000 |
commit | c0463e8b79ca650b60badc5b9c0d574b91aa8d01 (patch) | |
tree | d2aa3554be681b2b8c51367e295fdf8f2ed1fbeb /nptl/tst-join7.c | |
parent | 1905cf47bcfb53d9f7e640db83e43bbe32f9fa4a (diff) | |
download | glibc-c0463e8b79ca650b60badc5b9c0d574b91aa8d01.tar.gz glibc-c0463e8b79ca650b60badc5b9c0d574b91aa8d01.tar.xz glibc-c0463e8b79ca650b60badc5b9c0d574b91aa8d01.zip |
pthread: Move some join tests from nptl to sysdeps/pthread
So they can be checked with htl too.
Diffstat (limited to 'nptl/tst-join7.c')
-rw-r--r-- | nptl/tst-join7.c | 46 |
1 files changed, 0 insertions, 46 deletions
diff --git a/nptl/tst-join7.c b/nptl/tst-join7.c deleted file mode 100644 index c077d3cee3..0000000000 --- a/nptl/tst-join7.c +++ /dev/null @@ -1,46 +0,0 @@ -/* Verify that TLS access in separate thread in a dlopened library does not - deadlock. - Copyright (C) 2015-2020 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 <dlfcn.h> - -/* When one dynamically loads a module, which spawns a thread to perform some - activities, it could be possible that TLS storage is accessed for the first - time in that thread. This results in an allocation request within the - thread, which could result in an attempt to take the rtld load_lock. This - is a problem because it would then deadlock with the dlopen (which owns the - lock), if the main thread is waiting for the spawned thread to exit. We can - at least ensure that this problem does not occur due to accesses within - libc.so, by marking TLS variables within libc.so as IE. The problem of an - arbitrary variable being accessed and constructed within such a thread still - exists but this test case does not verify that. */ - -int -do_test (void) -{ - void *f = dlopen ("tst-join7mod.so", RTLD_NOW | RTLD_GLOBAL); - if (f) - dlclose (f); - else - return 1; - - return 0; -} - -#define TEST_FUNCTION do_test () -#include "../test-skeleton.c" |