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* elf/Makefile (tests): Add loadfail.
	Add rules to build failobj.so.
	* elf/loadfail.c: New file.  Test of failing to load object with
	RTLD_GLOBAL set.
	* elf/failobj.c: New file.  Object which will fail to load.
This commit is contained in:
Ulrich Drepper 1999-01-20 20:01:17 +00:00
parent ad11b5a745
commit 1e26231274
4 changed files with 50 additions and 2 deletions
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6
ChangeLog
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@ -1,5 +1,11 @@
1999-01-20 Ulrich Drepper <drepper@cygnus.com>
* elf/Makefile (tests): Add loadfail.
Add rules to build failobj.so.
* elf/loadfail.c: New file. Test of failing to load object with
RTLD_GLOBAL set.
* elf/failobj.c: New file. Object which will fail to load.
* elf/dl-close.c (_dl_close): Fix last patch (cnt is unsigned).
* elf/dl-close.c: Handle failed loads which would have gone in the

10
elf/Makefile
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@ -75,7 +75,7 @@ others += ldconfig
install-rootsbin += ldconfig
endif
tests = loadtest restest1 preloadtest
tests = loadtest restest1 preloadtest loadfail
include ../Rules
@ -203,7 +203,7 @@ $(objpfx)sprof: $(objpfx)libdl.a
endif
modules-names = testobj1 testobj2 testobj3 testobj4 testobj5 testobj6 \
testobj1_1
testobj1_1 failobj
test-modules = $(addprefix $(objpfx),$(addsuffix .so,$(modules-names)))
generated += $(test-modules)
@ -216,6 +216,7 @@ LDLIBS-testobj3.so = -ldl
LDLIBS-testobj4.so = -ldl
LDLIBS-testobj5.so = -ldl
LDLIBS-testobj6.so = -ldl
LDLIBS-failobj.so = $(objpfx)testobj6.so
$(test-modules): $(objpfx)%.so: %.c
$(build-module)
@ -233,6 +234,11 @@ $(objpfx)restest1.out: $(test-modules)
$(objpfx)preloadtest.out: $(test-modules)
LDFLAGS-preloadtest = -rdynamic $(objpfx)testobj6.so
preloadtest-ENV = LD_PRELOAD=testobj1.so:testobj2.so:testobj3.so:testobj4.so:testobj5.so
$(objpfx)loadfail: $(objpfx)libdl.so
LDFLAGS-loadfail = -rdynamic
$(objpfx)loadfile.out: $(objpfx)failobj.so
# muwahaha

6
elf/failobj.c Normal file
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@ -0,0 +1,6 @@
/* This function is supposed to not exist. */
int
foo (int a)
{
return xyzzy (a);
}

30
elf/loadfail.c Normal file
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@ -0,0 +1,30 @@
#include <dlfcn.h>
#include <error.h>
#include <stdio.h>
#include <stdlib.h>
int
main (void)
{
void *h;
if (dlopen ("testobj1.so", RTLD_GLOBAL | RTLD_NOW) == NULL
|| dlopen ("testobj1.so", RTLD_GLOBAL | RTLD_NOW) == NULL
|| dlopen ("testobj2.so", RTLD_GLOBAL | RTLD_NOW) == NULL
|| dlopen ("testobj3.so", RTLD_GLOBAL | RTLD_NOW) == NULL
|| dlopen ("testobj4.so", RTLD_GLOBAL | RTLD_NOW) == NULL
|| dlopen ("testobj5.so", RTLD_GLOBAL | RTLD_NOW) == NULL)
error (EXIT_FAILURE, 0, "failed to load shared object: %s", dlerror ());
h = dlopen ("failobj.so", RTLD_GLOBAL | RTLD_NOW);
printf ("h = %p, %s\n", h, h == NULL ? "ok" : "fail");
return h != NULL;
}
int
foo (int a)
{
return 10;
}