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Add test for bug 21041

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This commit is contained in:
Andreas Schwab 2017-08-08 17:44:32 +02:00
parent 0e02b5107e
commit 40c06a3d04
4 changed files with 77 additions and 2 deletions
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10
ChangeLog
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@ -1,3 +1,13 @@
2017-08-09 Andreas Schwab <schwab@suse.de>
* nptl/Makefile (tests) [$(build-shared) = yes]: Add
tst-compat-forwarder.
(modules-names): Add tst-compat-forwarder-mod.
($(objpfx)tst-compat-forwarder): Depend on
$(objpfx)tst-compat-forwarder-mod.so.
* nptl/tst-compat-forwarder.c: New file.
* nptl/tst-compat-forwarder-mod.c: New file.
2017-08-09 Siddhesh Poyarekar <siddhesh@sourceware.org>
* sysdeps/aarch64/multiarch/memcpy_falkor.S: Fix code style in

6
nptl/Makefile
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@ -367,7 +367,7 @@ tests += tst-cancelx2 tst-cancelx3 tst-cancelx4 tst-cancelx5 \
tst-cleanupx0 tst-cleanupx1 tst-cleanupx2 tst-cleanupx3 tst-cleanupx4 \
tst-oncex3 tst-oncex4
ifeq ($(build-shared),yes)
tests += tst-atfork2 tst-tls4 tst-_res1 tst-fini1
tests += tst-atfork2 tst-tls4 tst-_res1 tst-fini1 tst-compat-forwarder
tests-internal += tst-tls3 tst-tls3-malloc tst-tls5 tst-stackguard1
tests-nolibpthread += tst-fini1
ifeq ($(have-z-execstack),yes)
@ -379,7 +379,7 @@ modules-names = tst-atfork2mod tst-tls3mod tst-tls4moda tst-tls4modb \
tst-tls5mod tst-tls5moda tst-tls5modb tst-tls5modc \
tst-tls5modd tst-tls5mode tst-tls5modf tst-stack4mod \
tst-_res1mod1 tst-_res1mod2 tst-execstack-mod tst-fini1mod \
tst-join7mod
tst-join7mod tst-compat-forwarder-mod
extra-test-objs += $(addsuffix .os,$(strip $(modules-names))) \
tst-cleanup4aux.o tst-cleanupx4aux.o
test-extras += tst-cleanup4aux tst-cleanupx4aux
@ -718,6 +718,8 @@ $(objpfx)tst-oddstacklimit.out: $(objpfx)tst-oddstacklimit $(objpfx)tst-basic1
$(evaluate-test)
endif
$(objpfx)tst-compat-forwarder: $(objpfx)tst-compat-forwarder-mod.so
# The tests here better do not run in parallel
ifneq ($(filter %tests,$(MAKECMDGOALS)),)
.NOTPARALLEL:

28
nptl/tst-compat-forwarder-mod.c Normal file
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@ -0,0 +1,28 @@
/* Copyright (C) 2017 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
<http://www.gnu.org/licenses/>. */
/* Call the function system through a statically initialized pointer. */
#include <stdlib.h>
int (*system_function) (const char *) = system;
void
call_system (void)
{
system_function (NULL);
}

35
nptl/tst-compat-forwarder.c Normal file
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@ -0,0 +1,35 @@
/* Copyright (C) 2017 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
<http://www.gnu.org/licenses/>. */
/* Test that the compat forwaders in libpthread work correctly. */
#include <support/test-driver.h>
extern void call_system (void);
int
do_test (void)
{
/* Calling the system function from a shared library that is not linked
against libpthread, when the main program is linked against
libpthread, should not crash. */
call_system ();
return 0;
}
#include <support/test-driver.c>