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c4bb124a75
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.
72 lines
1.5 KiB
C
72 lines
1.5 KiB
C
#include <dlfcn.h>
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#include <mcheck.h>
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#include <stdio.h>
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#include <stdlib.h>
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int
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main (void)
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{
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void *h1;
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void *h2;
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int (*fp) (void);
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int *vp;
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mtrace ();
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/* Open the two objects. */
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h1 = dlopen ("reldepmod5.so", RTLD_LAZY);
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if (h1 == NULL)
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{
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printf ("cannot open reldepmod5.so: %s\n", dlerror ());
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exit (1);
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}
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h2 = dlopen ("reldepmod6.so", RTLD_LAZY);
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if (h2 == NULL)
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{
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printf ("cannot open reldepmod6.so: %s\n", dlerror ());
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exit (1);
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}
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/* Get the address of the variable in reldepmod1.so. */
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fp = dlsym (h2, "bar");
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if (fp == NULL)
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{
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printf ("cannot get address of \"bar\": %s\n", dlerror ());
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exit (1);
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}
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/* Call the function. */
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puts ("calling fp for the first time");
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if (fp () != 0)
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{
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puts ("function \"call_me\" returned wrong result");
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exit (1);
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}
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/* Now close the first object. It must still be around since we have
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an implicit dependency. */
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if (dlclose (h1) != 0)
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{
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printf ("closing h1 failed: %s\n", dlerror ());
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exit (1);
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}
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/* Calling the function must still work. */
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puts ("calling fp for the second time");
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if (fp () != 0)
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{
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puts ("function \"call_me\" the second time returned wrong result");
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exit (1);
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}
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puts ("second call suceeded as well");
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/* Close the second object, we are done. */
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if (dlclose (h2) != 0)
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{
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printf ("closing h2 failed: %s\n", dlerror ());
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exit (1);
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}
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return 0;
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}
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