From d8b778907e5270fdeb70459842ffbc20bd2ca5e1 Mon Sep 17 00:00:00 2001 From: Florian Weimer Date: Thu, 11 Jan 2018 13:13:14 +0100 Subject: nptl: Add tst-minstack-cancel, tst-minstack-exit [BZ #22636] I verified that without the guard accounting change in commit 630f4cc3aa019ede55976ea561f1a7af2f068639 (Fix stack guard size accounting) and RTLD_NOW for libgcc_s introduced by commit f993b8754080ac7572b692870e926d8b493db16c (nptl: Open libgcc.so with RTLD_NOW during pthread_cancel), the tst-minstack-cancel test fails on an AVX-512F machine. tst-minstack-exit still passes, and either of the mentioned commit by itself frees sufficient stack space to make tst-minstack-cancel pass, too. Reviewed-by: Carlos O'Donell --- nptl/tst-minstack-exit.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 nptl/tst-minstack-exit.c (limited to 'nptl/tst-minstack-exit.c') diff --git a/nptl/tst-minstack-exit.c b/nptl/tst-minstack-exit.c new file mode 100644 index 0000000000..9c7e9a4dfe --- /dev/null +++ b/nptl/tst-minstack-exit.c @@ -0,0 +1,46 @@ +/* Test that pthread_exit works with the minimum stack size. + Copyright (C) 2018 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 + . */ + +/* Note: This test is similar to tst-minstack-cancel, but is separate + to avoid spurious test passes due to warm-up effects. */ + +#include +#include +#include +#include + +static void * +threadfunc (void *closure) +{ + pthread_exit (threadfunc); + return NULL; +} + +static int +do_test (void) +{ + pthread_attr_t attr; + xpthread_attr_init (&attr); + xpthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN); + pthread_t thr = xpthread_create (&attr, threadfunc, NULL); + TEST_VERIFY (xpthread_join (thr) == threadfunc); + xpthread_attr_destroy (&attr); + return 0; +} + +#include -- cgit 1.4.1