From patchwork Fri Jan 12 09:22:23 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Florian Weimer X-Patchwork-Id: 25360 Received: (qmail 60822 invoked by alias); 12 Jan 2018 09:26:16 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Delivered-To: mailing list libc-alpha@sourceware.org Received: (qmail 39524 invoked by uid 89); 12 Jan 2018 09:22:27 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-26.9 required=5.0 tests=BAYES_00, GIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3, KAM_SHORT, SPF_HELO_PASS, T_RP_MATCHES_RCVD autolearn=ham version=3.3.2 spammy= X-HELO: mx1.redhat.com Date: Fri, 12 Jan 2018 10:22:23 +0100 To: libc-alpha@sourceware.org Subject: [PATCH] nptl: Add PTHREAD_MIN_STACK C++ throw test [BZ #22636] User-Agent: Heirloom mailx 12.5 7/5/10 MIME-Version: 1.0 Message-Id: <20180112092223.AB07C41610759@oldenburg.str.redhat.com> From: fweimer@redhat.com (Florian Weimer) 2018-01-12 Florian Weimer [BZ #22636] * nptl/tst-minstack-throw.cc: New file. * nptl/Makefile (tests): Add tst-minstack-throw. (LDLIBS-tst-minstack-throw): Link with libstdc++. [!CXX] (tests-unsupported): Add tst-minstack-throw. Reviewed-by: Adhemerval Zanella diff --git a/nptl/Makefile b/nptl/Makefile index 12c69f99d8..d59caa5980 100644 --- a/nptl/Makefile +++ b/nptl/Makefile @@ -231,6 +231,7 @@ CFLAGS-tst-thread_local1.o = -std=gnu++11 LDLIBS-tst-thread_local1 = -lstdc++ CFLAGS-tst-thread-exit-clobber.o = -std=gnu++11 LDLIBS-tst-thread-exit-clobber = -lstdc++ +LDLIBS-tst-minstack-throw = -lstdc++ tests = tst-attr1 tst-attr2 tst-attr3 tst-default-attr \ tst-mutex1 tst-mutex2 tst-mutex3 tst-mutex4 tst-mutex5 tst-mutex6 \ @@ -307,7 +308,8 @@ tests = tst-attr1 tst-attr2 tst-attr3 tst-default-attr \ tst-bad-schedattr \ tst-thread_local1 tst-mutex-errorcheck tst-robust10 \ tst-robust-fork tst-create-detached tst-memstream \ - tst-thread-exit-clobber tst-minstack-cancel tst-minstack-exit + tst-thread-exit-clobber tst-minstack-cancel tst-minstack-exit \ + tst-minstack-throw tests-internal := tst-rwlock19 tst-rwlock20 \ tst-sem11 tst-sem12 tst-sem13 \ @@ -457,7 +459,8 @@ endif ifeq (,$(CXX)) # These tests require a C++ compiler and runtime. -tests-unsupported += tst-cancel24 tst-cancel24-static tst-once5 +tests-unsupported += tst-cancel24 tst-cancel24-static tst-once5 \ + tst-minstack-throw endif # These tests require a C++ compiler and runtime with thread_local support. ifneq ($(have-cxx-thread_local),yes) diff --git a/nptl/tst-minstack-throw.cc b/nptl/tst-minstack-throw.cc new file mode 100644 index 0000000000..b0a897b0c6 --- /dev/null +++ b/nptl/tst-minstack-throw.cc @@ -0,0 +1,87 @@ +/* Test that throwing C++ exceptions 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 + . */ + +#include + +#include +#include +#include +#include + +/* Throw a std::runtime_exception. */ +__attribute__ ((noinline, noclone, weak)) +void +do_throw_exception () +{ + throw std::runtime_error ("test exception"); +} + +/* Class with a destructor, to trigger unwind handling. */ +struct class_with_destructor +{ + class_with_destructor (); + ~class_with_destructor (); +}; + +__attribute__ ((noinline, noclone, weak)) +class_with_destructor::class_with_destructor () +{ +} + +__attribute__ ((noinline, noclone, weak)) +class_with_destructor::~class_with_destructor () +{ +} + +__attribute__ ((noinline, noclone, weak)) +void +function_with_destructed_object () +{ + class_with_destructor obj; + do_throw_exception (); +} + +static void * +threadfunc (void *closure) +{ + try + { + function_with_destructed_object (); + FAIL_EXIT1 ("no exception thrown"); + } + catch (std::exception &e) + { + TEST_COMPARE (strcmp (e.what (), "test exception"), 0); + return reinterpret_cast (threadfunc); + } + FAIL_EXIT1 ("no exception caught"); +} + +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