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authorUlrich Drepper <drepper@redhat.com>2000-08-26 23:41:19 +0000
committerUlrich Drepper <drepper@redhat.com>2000-08-26 23:41:19 +0000
commit2b7238dda8a0675577701d59f655029c55c60bfe (patch)
tree1c3bd9a230657021690ce38bfff4bbb42164f209 /elf/unload.c
parent36466e64f0f8cbf1a915070f3f071b9360926cae (diff)
Update.
2000-08-26 Ulrich Drepper <drepper@redhat.com> * elf/Makefile (distribute): Add unloadmod.c, reldepmod1.c, reldepmod2.c, reldepmod3.c, and reldepmod4.c. (tests): Add unload, reldep, reldep2, and reldep3. (modules-names): Add unloadmod, reldepmod1, reldepmod2, reldepmod3, and reldepmod4. Add rules to build and run unload, reldep, reldep2, and reldep3. * elf/dl-lookup.c (_dl_lookup_symbol): Add new parameter explicit. Don't create relocation dependency if it is nonzero. (_dl_lookup_symbol_skip): Remove relocation dependency stuff. This can never happen here. (_dl_lookup_versioned_symbol): Add new parameter explicit. Don't create relocation dependency if it is nonzero. (_dl_lookup_versioned_symbol_skip): Remove relocation dependency stuff. This can never happen here. * sysdeps/generic/ldsodefs.h: Change prototypes. * elf/dl-reloc.c (RESOLVE_MAP): Pass 0 in explicit parameter to _dl_lookup_up and _dl_lookup_versioned_symbol. (RESOLV): Likewise. * elf/dl-runtime.c (fixup): Likewise. (profile_fixup): Likewise. * elf/dl-libc.c (do_dlsym): Pass 1 in explicit parameter to _dl_lookup_symbol. * elf/dl-symbol.c (_dl_symbol_value): Likewise. * elf/rtld.c (dl_main): Likewise. * elf/dl-sym.c (_dl_sym): Pass 1 in explicit parameter to _dl_lookup_symbol if handle is not RTLD_DEFAULT. Always compute and pass down the caller map. (_dl_vsym): Likewise. * elf/reldep.c: New file. * elf/reldep2.c: New file. * elf/reldep3.c: New file. * elf/reldepmod1.c: New file. * elf/reldepmod2.c: New file. * elf/reldepmod3.c: New file. * elf/reldepmod4.c: New file. * elf/unload.c: New file. * elf/unloadmod.c: New file. * elf/do-lookup.h: Remove unused undef_name parameter. * elf/dl-lookup.c: Adjust callers.
Diffstat (limited to 'elf/unload.c')
-rw-r--r--elf/unload.c65
1 files changed, 65 insertions, 0 deletions
diff --git a/elf/unload.c b/elf/unload.c
new file mode 100644
index 0000000000..2789abd5bb
--- /dev/null
+++ b/elf/unload.c
@@ -0,0 +1,65 @@
+/* Test for unloading (really unmapping) of objects. By Franz Sirl.
+ This test does not have to passed in all dlopen() et.al. implementation
+ since it is not required the unloading actually happens. But we
+ require it for glibc. */
+
+#include <dlfcn.h>
+#include <mcheck.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+typedef struct
+{
+ void *next;
+} strct;
+
+int
+main (void)
+{
+ void *sohandle;
+ strct *testdat;
+ int ret;
+ int result = 0;
+
+ mtrace ();
+
+ sohandle = dlopen ("unloadmod.so", RTLD_NOW | RTLD_GLOBAL);
+ if (sohandle == NULL)
+ {
+ printf ("first dlopen failed: %s\n", dlerror ());
+ exit (1);
+ }
+
+ testdat = dlsym (sohandle, "testdat");
+ testdat->next = (void *) -1;
+
+ ret = dlclose (sohandle);
+ if (ret != 0)
+ {
+ puts ("first dlclose failed");
+ result = 1;
+ }
+
+ sohandle = dlopen ("unloadmod.so", RTLD_NOW | RTLD_GLOBAL);
+ if (sohandle == NULL)
+ {
+ printf ("second dlopen failed: %s\n", dlerror ());
+ exit (1);
+ }
+
+ testdat = dlsym (sohandle, "testdat");
+ if (testdat->next == (void *) -1)
+ {
+ puts ("testdat->next == (void *) -1");
+ result = 1;
+ }
+
+ ret = dlclose (sohandle);
+ if (ret != 0)
+ {
+ puts ("second dlclose failed");
+ result = 1;
+ }
+
+ return result;
+}