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authorUlrich Drepper <drepper@redhat.com>2001-09-08 16:27:08 +0000
committerUlrich Drepper <drepper@redhat.com>2001-09-08 16:27:08 +0000
commitc4bb124a75b23d1a82cee232005dc7e8c43a4276 (patch)
tree070153ee7d895708e4e1b8c69b0d05093c19f17d /elf/reldep5.c
parent5a21d307c518c911f81848b6c0056fcc39e3ddcd (diff)
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Update.
2001-09-08 Ulrich Drepper <drepper@redhat.com> * elf/dl-close.c (_dl_close): If object has no r_list (i.e., wasn't loaded directly) determine length if l_initfini list by iterating over its elements. Minor optimizations. * elf/dl-deps.c (_dl_map_object_deps): Always add own map to l_initfini for dependency objects. If object was already loaded check whether any of the dependencies is already on the relocation dependency list. If yes, remove the latter. Minor optimizations. * elf/dl-lookup.c (add_dependency): Add check for self reference of maps here. Search l_initfini list only if the object was loaded directly and not only as a dependency. (_dl_lookup_symbol): Add relocation dependency also if object is not in global scope. Remove test for self-reference here. (_dl_lookup_versioned_symbol): Likewise. * elf/dl-object (_dl_new_object): Cleanup. Initialize dont_free element of first name record. * elf/loadtest.c: Add some more test to recognize early if an object wasn't unloaded. * elf/Makefile: Add rules to build and run reldep5. * elf/reldep5.c: New file. * elf/reldepmod5.c: New file. * elf/reldepmod6.c: New file. * elf/reldep2.c: Fix typo. * elf/dl-object.c (_dl_new_object): Initialize l_scope and l_scope_max.
Diffstat (limited to 'elf/reldep5.c')
-rw-r--r--elf/reldep5.c71
1 files changed, 71 insertions, 0 deletions
diff --git a/elf/reldep5.c b/elf/reldep5.c
new file mode 100644
index 0000000..982265f
--- /dev/null
+++ b/elf/reldep5.c
@@ -0,0 +1,71 @@
+#include <dlfcn.h>
+#include <mcheck.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+int
+main (void)
+{
+ void *h1;
+ void *h2;
+ int (*fp) (void);
+ int *vp;
+
+ mtrace ();
+
+ /* Open the two objects. */
+ h1 = dlopen ("reldepmod5.so", RTLD_LAZY);
+ if (h1 == NULL)
+ {
+ printf ("cannot open reldepmod5.so: %s\n", dlerror ());
+ exit (1);
+ }
+ h2 = dlopen ("reldepmod6.so", RTLD_LAZY);
+ if (h2 == NULL)
+ {
+ printf ("cannot open reldepmod6.so: %s\n", dlerror ());
+ exit (1);
+ }
+
+ /* Get the address of the variable in reldepmod1.so. */
+ fp = dlsym (h2, "bar");
+ if (fp == NULL)
+ {
+ printf ("cannot get address of \"bar\": %s\n", dlerror ());
+ exit (1);
+ }
+
+ /* Call the function. */
+ puts ("calling fp for the first time");
+ if (fp () != 0)
+ {
+ puts ("function \"call_me\" returned wrong result");
+ exit (1);
+ }
+
+ /* Now close the first object. It must still be around since we have
+ an implicit dependency. */
+ if (dlclose (h1) != 0)
+ {
+ printf ("closing h1 failed: %s\n", dlerror ());
+ exit (1);
+ }
+
+ /* Calling the function must still work. */
+ puts ("calling fp for the second time");
+ if (fp () != 0)
+ {
+ puts ("function \"call_me\" the second time returned wrong result");
+ exit (1);
+ }
+ puts ("second call suceeded as well");
+
+ /* Close the second object, we are done. */
+ if (dlclose (h2) != 0)
+ {
+ printf ("closing h2 failed: %s\n", dlerror ());
+ exit (1);
+ }
+
+ return 0;
+}