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authorFlorian Weimer <fweimer@redhat.com>2019-10-17 08:51:21 +0200
committerFlorian Weimer <fweimer@redhat.com>2019-10-17 08:51:21 +0200
commit7d3db434f910c23591f748a6d0ac3548af1048bb (patch)
treecd81091a7bde637d730cbba69fa68543bc4372c6 /elf
parenteb77a1fccc7e60cea32245c11288c7f1d92545fa (diff)
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Rename and split elf/tst-dlopen-aout collection of tests
From the beginning, elf/tst-dlopen-aout has exercised two different bugs: (a) failure to report errors for a dlopen of the executable itself in some cases (bug 24900) and (b) incorrect rollback of the TLS modid allocation in case of a dlopen failure (bug 16634). This commit replaces the test with elf/tst-dlopen-self for (a) and elf/tst-dlopen-tlsmodid for (b). The latter tests use the elf/tst-dlopen-self binaries (or iconv) with dlopen, so they are no longer self-dlopen tests. Tested on x86_64-linux-gnu and i686-linux-gnu, with a toolchain that does not default to PIE.
Diffstat (limited to 'elf')
-rw-r--r--elf/Makefile32
-rw-r--r--elf/tst-dlopen-self-container.c19
-rw-r--r--elf/tst-dlopen-self-pie.c (renamed from elf/tst-dlopen-aout-container.c)4
-rw-r--r--elf/tst-dlopen-self.c55
-rw-r--r--elf/tst-dlopen-tlsmodid-container.c39
-rw-r--r--elf/tst-dlopen-tlsmodid-pie.c (renamed from elf/tst-dlopen-aout-pie.c)5
-rw-r--r--elf/tst-dlopen-tlsmodid.c25
-rw-r--r--elf/tst-dlopen-tlsmodid.h (renamed from elf/tst-dlopen-aout.c)22
8 files changed, 177 insertions, 24 deletions
diff --git a/elf/Makefile b/elf/Makefile
index dea51ca..5e4cdb4 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -192,14 +192,16 @@ tests += restest1 preloadtest loadfail multiload origtest resolvfail \
tst-latepthread tst-tls-manydynamic tst-nodelete-dlclose \
tst-debug1 tst-main1 tst-absolute-sym tst-absolute-zero tst-big-note \
tst-unwind-ctor tst-unwind-main tst-audit13 \
- tst-sonamemove-link tst-sonamemove-dlopen tst-dlopen-aout
+ tst-sonamemove-link tst-sonamemove-dlopen tst-dlopen-tlsmodid \
+ tst-dlopen-self
# reldep9
tests-internal += loadtest unload unload2 circleload1 \
neededtest neededtest2 neededtest3 neededtest4 \
tst-tls3 tst-tls6 tst-tls7 tst-tls8 tst-dlmopen2 \
tst-ptrguard1 tst-stackguard1 tst-libc_dlvsym \
tst-create_format1
-tests-container += tst-pldd tst-dlopen-aout-container
+tests-container += tst-pldd tst-dlopen-tlsmodid-container \
+ tst-dlopen-self-container
test-srcs = tst-pathopt
selinux-enabled := $(shell cat /selinux/enforce 2> /dev/null)
ifneq ($(selinux-enabled),1)
@@ -308,8 +310,9 @@ test-xfail-tst-protected1b = yes
endif
ifeq (yesyes,$(have-fpie)$(build-shared))
modules-names += tst-piemod1
-tests += tst-pie1 tst-pie2 tst-dlopen-pie tst-dlopen-aout-pie
-tests-pie += tst-pie1 tst-pie2 tst-dlopen-aout-pie
+tests += tst-pie1 tst-pie2 tst-dlopen-pie tst-dlopen-tlsmodid-pie \
+ tst-dlopen-self-pie
+tests-pie += tst-pie1 tst-pie2 tst-dlopen-tlsmodid-pie tst-dlopen-self-pie
ifeq (yes,$(have-protected-data))
tests += vismain
tests-pie += vismain
@@ -1268,12 +1271,21 @@ $(objpfx)tst-addr1: $(libdl)
$(objpfx)tst-thrlock: $(libdl) $(shared-thread-library)
-tst-tst-dlopen-aout-no-pie = yes
-$(objpfx)tst-dlopen-aout: $(libdl) $(shared-thread-library)
-CFLAGS-tst-dlopen-aout-pie.c += $(pie-ccflag)
-$(objpfx)tst-dlopen-aout-pie: $(libdl) $(shared-thread-library)
-$(objpfx)tst-dlopen-aout-container: $(libdl) $(shared-thread-library)
-LDFLAGS-tst-dlopen-aout-container += -Wl,-rpath,\$$ORIGIN
+tst-tst-dlopen-tlsmodid-no-pie = yes
+$(objpfx)tst-dlopen-tlsmodid: $(libdl) $(shared-thread-library)
+$(objpfx)tst-dlopen-tlsmodid.out: $(objpfx)tst-dlopen-self
+CFLAGS-tst-dlopen-tlsmodid-pie.c += $(pie-ccflag)
+$(objpfx)tst-dlopen-tlsmodid-pie: $(libdl) $(shared-thread-library)
+$(objpfx)tst-dlopen-tlsmodid-pie.out: $(objpfx)tst-dlopen-self-pie
+$(objpfx)tst-dlopen-tlsmodid-container: $(libdl) $(shared-thread-library)
+LDFLAGS-tst-dlopen-tlsmodid-container += -Wl,-rpath,\$$ORIGIN
+
+tst-tst-dlopen-self-no-pie = yes
+$(objpfx)tst-dlopen-self: $(libdl)
+CFLAGS-tst-dlopen-self-pie.c += $(pie-ccflag)
+$(objpfx)tst-dlopen-self-pie: $(libdl)
+$(objpfx)tst-dlopen-self-container: $(libdl)
+LDFLAGS-tst-dlopen-self-container += -Wl,-rpath,\$$ORIGIN
CFLAGS-ifuncmain1pic.c += $(pic-ccflag)
CFLAGS-ifuncmain1picstatic.c += $(pic-ccflag)
diff --git a/elf/tst-dlopen-self-container.c b/elf/tst-dlopen-self-container.c
new file mode 100644
index 0000000..b1db238
--- /dev/null
+++ b/elf/tst-dlopen-self-container.c
@@ -0,0 +1,19 @@
+/* Check dlopen'ing the executable itself fails (bug 24900); container version.
+ Copyright (C) 2014-2019 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 "tst-dlopen-self.c"
diff --git a/elf/tst-dlopen-aout-container.c b/elf/tst-dlopen-self-pie.c
index 702dbe0..855bccc 100644
--- a/elf/tst-dlopen-aout-container.c
+++ b/elf/tst-dlopen-self-pie.c
@@ -1,4 +1,4 @@
-/* Test case for BZ #16634 and BZ#24900. Container version.
+/* Check that dlopen'ing the executable itself fails (bug 24900); PIE version.
Copyright (C) 2014-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
@@ -16,4 +16,4 @@
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#include "tst-dlopen-aout.c"
+#include "tst-dlopen-self.c"
diff --git a/elf/tst-dlopen-self.c b/elf/tst-dlopen-self.c
new file mode 100644
index 0000000..310f1b0
--- /dev/null
+++ b/elf/tst-dlopen-self.c
@@ -0,0 +1,55 @@
+/* Check that dlopen'ing the executable itself fails (bug 24900).
+ Copyright (C) 2014-2019 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>
+#include <stdlib.h>
+#include <string.h>
+#include <support/check.h>
+
+/* Call dlopen and check that fails with an error message indicating
+ an attempt to open an ET_EXEC or PIE object. */
+static void
+check_dlopen_failure (const char *path)
+{
+ void *handle = dlopen (path, RTLD_LAZY);
+ if (handle != NULL)
+ FAIL_EXIT1 ("dlopen succeeded unexpectedly: %s", path);
+
+ const char *message = dlerror ();
+ TEST_VERIFY_EXIT (message != NULL);
+ if ((strstr (message,
+ "cannot dynamically load position-independent executable")
+ == NULL)
+ && strstr (message, "cannot dynamically load executable") == NULL)
+ FAIL_EXIT1 ("invalid dlopen error message: \"%s\"", message);
+}
+
+static int
+do_test (int argc, char *argv[])
+{
+ check_dlopen_failure (argv[0]);
+
+ char *full_path = realpath (argv[0], NULL);
+ check_dlopen_failure (full_path);
+ free (full_path);
+
+ return 0;
+}
+
+#define TEST_FUNCTION_ARGV do_test
+#include <support/test-driver.c>
diff --git a/elf/tst-dlopen-tlsmodid-container.c b/elf/tst-dlopen-tlsmodid-container.c
new file mode 100644
index 0000000..7cf82bc
--- /dev/null
+++ b/elf/tst-dlopen-tlsmodid-container.c
@@ -0,0 +1,39 @@
+/* Test case for BZ #16634. Container version.
+ Copyright (C) 2014-2019 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/>. */
+
+/* This test uses the iconv program as the test binary. */
+
+#include <stdlib.h>
+#include <support/support.h>
+
+static char *iconv_path;
+
+static __attribute__ ((constructor)) void
+iconv_path_init (void)
+{
+ iconv_path = xasprintf ("%s/iconv", support_bindir_prefix);
+}
+
+static __attribute__ ((destructor)) void
+iconv_path_fini (void)
+{
+ free (iconv_path);
+}
+
+#define TST_DLOPEN_TLSMODID_PATH iconv_path
+#include "tst-dlopen-tlsmodid.h"
diff --git a/elf/tst-dlopen-aout-pie.c b/elf/tst-dlopen-tlsmodid-pie.c
index 8d2009c..db1176b 100644
--- a/elf/tst-dlopen-aout-pie.c
+++ b/elf/tst-dlopen-tlsmodid-pie.c
@@ -1,4 +1,4 @@
-/* Test case for BZ #16634 and BZ#24900. PIE version.
+/* Test case for BZ #16634. PIE version.
Copyright (C) 2014-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
@@ -16,4 +16,5 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
-#include "tst-dlopen-aout.c"
+#define TST_DLOPEN_TLSMODID_PATH "tst-dlopen-self-pie"
+#include "tst-dlopen-tlsmodid.h"
diff --git a/elf/tst-dlopen-tlsmodid.c b/elf/tst-dlopen-tlsmodid.c
new file mode 100644
index 0000000..165edcb
--- /dev/null
+++ b/elf/tst-dlopen-tlsmodid.c
@@ -0,0 +1,25 @@
+/* Test case for BZ #16634. Non-PIE version.
+
+ Verify that incorrectly dlopen()ing an executable without
+ __RTLD_OPENEXEC does not cause assertion in ld.so, and that it
+ actually results in an error.
+
+ Copyright (C) 2014-2019 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/>. */
+
+#define TST_DLOPEN_TLSMODID_PATH "tst-dlopen-self"
+#include "tst-dlopen-tlsmodid.h"
diff --git a/elf/tst-dlopen-aout.c b/elf/tst-dlopen-tlsmodid.h
index b86d082..c747cb1 100644
--- a/elf/tst-dlopen-aout.c
+++ b/elf/tst-dlopen-tlsmodid.h
@@ -1,4 +1,5 @@
-/* Test case for BZ #16634 and BZ#24900.
+/* Common code for tst-dlopen-tlsmodid, tst-dlopen-tlsmodid-pie,
+ tst-dlopen-tlsmodid-container.
Verify that incorrectly dlopen()ing an executable without
__RTLD_OPENEXEC does not cause assertion in ld.so, and that it
@@ -21,6 +22,9 @@
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
+/* Before including this file, the macro TST_DLOPEN_TLSMODID_PATH must
+ be defined, to specify the path used for the open operation. */
+
#include <dlfcn.h>
#include <pthread.h>
#include <stdio.h>
@@ -38,14 +42,14 @@ fn (void *p)
return p;
}
-/* Call dlopen on PATH and check that fails with an error message
- indicating an attempt to open an ET_EXEC or PIE object. */
+/* Call dlopen and check that fails with an error message indicating
+ an attempt to open an ET_EXEC or PIE object. */
static void
-check_dlopen_failure (const char *path)
+check_dlopen_failure (void)
{
- void *handle = dlopen (path, RTLD_LAZY);
+ void *handle = dlopen (TST_DLOPEN_TLSMODID_PATH, RTLD_LAZY);
if (handle != NULL)
- FAIL_EXIT1 ("dlopen succeeded unexpectedly: %s", path);
+ FAIL_EXIT1 ("dlopen succeeded unexpectedly: %s", TST_DLOPEN_TLSMODID_PATH);
const char *message = dlerror ();
TEST_VERIFY_EXIT (message != NULL);
@@ -65,7 +69,7 @@ do_test (int argc, char *argv[])
{
pthread_t thr;
- check_dlopen_failure (argv[0]);
+ check_dlopen_failure ();
/* We create threads to force TLS allocation, which triggers
the original bug i.e. running out of surplus slotinfo entries
@@ -74,9 +78,7 @@ do_test (int argc, char *argv[])
xpthread_join (thr);
}
- /* The elf subdirectory (or $ORIGIN in the container case) is on the
- library search path. */
- check_dlopen_failure ("tst-dlopen-aout");
+ check_dlopen_failure ();
return 0;
}