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.

1 files changed, 65 insertions, 0 deletions

diff --git a/elf/unload.c b/elf/unload.c
new file mode 100644
index 0000000..2789abd
--- /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;
+}