[3/3] dl-load: test that loaded libraries cannot have duplicated sonames
Commit Message
---
elf/Makefile | 14 +++++++++++++-
elf/tst-dlopen-soname-dup.c | 34 ++++++++++++++++++++++++++++++++++
elf/tst-soname-mod.c | 19 +++++++++++++++++++
3 files changed, 66 insertions(+), 1 deletion(-)
create mode 100644 elf/tst-dlopen-soname-dup.c
create mode 100644 elf/tst-soname-mod.c
@@ -199,7 +199,8 @@ tests += restest1 preloadtest loadfail multiload origtest resolvfail \
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-tlsmodid \
- tst-dlopen-self tst-auditmany tst-initfinilazyfail tst-dlopenfail
+ tst-dlopen-self tst-auditmany tst-initfinilazyfail tst-dlopenfail \
+ tst-dlopen-soname-dup
# reldep9
tests-internal += loadtest unload unload2 circleload1 \
neededtest neededtest2 neededtest3 neededtest4 \
@@ -305,6 +306,7 @@ modules-names = testobj1 testobj2 testobj3 testobj4 testobj5 testobj6 \
tst-absolute-zero-lib tst-big-note-lib tst-unwind-ctor-lib \
tst-audit13mod1 tst-sonamemove-linkmod1 \
tst-sonamemove-runmod1 tst-sonamemove-runmod2 \
+ tst-soname-mod \
tst-auditmanymod1 tst-auditmanymod2 tst-auditmanymod3 \
tst-auditmanymod4 tst-auditmanymod5 tst-auditmanymod6 \
tst-auditmanymod7 tst-auditmanymod8 tst-auditmanymod9 \
@@ -1499,6 +1501,16 @@ $(objpfx)tst-sonamemove-dlopen.out: \
$(objpfx)tst-sonamemove-runmod1.so \
$(objpfx)tst-sonamemove-runmod2.so
+LDFLAGS-tst-soname-mod.so = -Wl,-soname=dummyname
+
+$(objpfx)tst-soname-mod-copy.so: $(objpfx)tst-soname-mod.so
+ cp $< $@
+
+$(objpfx)tst-dlopen-soname-dup: $(libdl)
+$(objpfx)tst-dlopen-soname-dup.out: \
+ $(objpfx)tst-soname-mod.so \
+ $(objpfx)tst-soname-mod-copy.so
+
# Override -z defs, so that we can reference an undefined symbol.
# Force lazy binding for the same reason.
LDFLAGS-tst-latepthreadmod.so = \
new file mode 100644
@@ -0,0 +1,34 @@
+/* Check that two DSOs with the same soname can only be loaded once
+ Copyright (C) 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 <stddef.h>
+#include <support/check.h>
+#include <support/xdlfcn.h>
+
+static int
+do_test (void)
+{
+ void *h1 = xdlopen ("tst-soname-mod.so", RTLD_NOW);
+ void *h2 = xdlopen ("tst-soname-mod-copy.so", RTLD_NOW);
+
+ TEST_VERIFY (h1 == h2);
+
+ return 0;
+}
+
+#include <support/test-driver.c>
new file mode 100644
@@ -0,0 +1,19 @@
+/* Run-time module with a soname defined
+ Copyright (C) 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/>. */
+
+/* left intentionally blank */