2005-03-03 Ulrich Drepper <drepper@redhat.com>

* elf/dl-close.c (_dl_close): Don't try to set up new searchpath if the
	loader is closed.  Fixes unload3.
	* elf/tst-global1.c: New file.
	* elf/Makefile (tests): Add tst-global1.
	* elf/testobj2.c (p): New function.

2005-03-03  Jakub Jelinek  <jakub@redhat.com>

	* elf/Makefile: Add rules to build and run unload3 test.
	* elf/unload3.c: New test.
	* elf/unload3mod1.c: New file.
	* elf/unload3mod2.c: New file.
	* elf/unload3mod3.c: New file.
	* elf/unload3mod4.c: New file.

ChangeLog

@@ -1,3 +1,20 @@
+2005-03-03  Ulrich Drepper  <drepper@redhat.com>
+
+	* elf/dl-close.c (_dl_close): Don't try to set up new searchpath if the
+	loader is closed.  Fixes unload3.
+	* elf/tst-global1.c: New file.
+	* elf/Makefile (tests): Add tst-global1.
+	* elf/testobj2.c (p): New function.
+
+2005-03-03  Jakub Jelinek  <jakub@redhat.com>
+
+	* elf/Makefile: Add rules to build and run unload3 test.
+	* elf/unload3.c: New test.
+	* elf/unload3mod1.c: New file.
+	* elf/unload3mod2.c: New file.
+	* elf/unload3mod3.c: New file.
+	* elf/unload3mod4.c: New file.
+
 2005-02-23  Ulrich Drepper  <drepper@redhat.com>
 
 	[BZ #719]

elf/Makefile

@@ -83,7 +83,8 @@ distribute	:= rtld-Rules \
 		   tst-array2dep.c tst-piemod1.c \
 		   tst-execstack-mod.c tst-dlmodcount.c \
 		   check-textrel.c dl-sysdep.h test-dlopenrpathmod.c \
-		   tst-deep1mod1.c tst-deep1mod2.c tst-deep1mod3.c
+		   tst-deep1mod1.c tst-deep1mod2.c tst-deep1mod3.c \
+		   unload3mod1.c unload3mod2.c unload3mod3.c unload3mod4.c
 
 CFLAGS-dl-runtime.c = -fexceptions -fasynchronous-unwind-tables
 CFLAGS-dl-lookup.c = -fexceptions -fasynchronous-unwind-tables
@@ -154,7 +155,8 @@ tests += loadtest restest1 preloadtest loadfail multiload origtest resolvfail \
 	 circleload1 tst-tls3 tst-tls4 tst-tls5 tst-tls6 tst-tls7 tst-tls8 \
 	 tst-tls10 tst-tls11 tst-tls12 tst-tls13 tst-tls14 tst-align \
 	 tst-align2 $(tests-execstack-$(have-z-execstack)) tst-dlmodcount \
-	 tst-dlopenrpath tst-deep1 tst-dlmopen1 tst-dlmopen2 tst-dlmopen3
+	 tst-dlopenrpath tst-deep1 tst-dlmopen1 tst-dlmopen2 tst-dlmopen3 \
+	 unload3 tst-global1
 #	 reldep9
 test-srcs = tst-pathopt
 tests-vis-yes = vismain
@@ -189,7 +191,8 @@ modules-names = testobj1 testobj2 testobj3 testobj4 testobj5 testobj6 \
 		tst-alignmod tst-alignmod2 \
 		$(modules-execstack-$(have-z-execstack)) \
 		tst-dlopenrpathmod tst-deep1mod1 tst-deep1mod2 tst-deep1mod3 \
-		tst-dlmopen1mod
+		tst-dlmopen1mod \
+		unload3mod1 unload3mod2 unload3mod3 unload3mod4
 ifeq (yes,$(have-initfini-array))
 modules-names += tst-array2dep
 endif
@@ -421,6 +424,9 @@ $(objpfx)reldep8mod3.so: $(objpfx)reldep8mod1.so $(objpfx)reldep8mod2.so
 $(objpfx)nodel2mod3.so: $(objpfx)nodel2mod1.so $(objpfx)nodel2mod2.so
 $(objpfx)reldep9mod2.so: $(objpfx)reldep9mod1.so
 $(objpfx)reldep9mod3.so: $(objpfx)reldep9mod1.so $(objpfx)reldep9mod2.so
+$(objpfx)unload3mod1.so: $(objpfx)unload3mod3.so
+$(objpfx)unload3mod2.so: $(objpfx)unload3mod3.so
+$(objpfx)unload3mod3.so: $(objpfx)unload3mod4.so
 
 LDFLAGS-tst-tlsmod5.so = -nostdlib
 LDFLAGS-tst-tlsmod6.so = -nostdlib
@@ -460,6 +466,7 @@ circlemod3.so-no-z-defs = yes
 circlemod3a.so-no-z-defs = yes
 reldep8mod2.so-no-z-defs = yes
 reldep9mod1.so-no-z-defs = yes
+unload3mod4.so-no-z-defs = yes
 
 # filtmod1.so has a special rule
 $(filter-out $(objpfx)filtmod1.so, $(test-modules)): $(objpfx)%.so: $(objpfx)%.os
@@ -676,6 +683,10 @@ $(objpfx)tst-align: $(libdl)
 $(objpfx)tst-align.out: $(objpfx)tst-alignmod.so
 $(objpfx)tst-align2: $(objpfx)tst-alignmod2.so
 
+$(objpfx)unload3: $(libdl)
+$(objpfx)unload3.out: $(objpfx)unload3mod1.so $(objpfx)unload3mod2.so \
+		      $(objpfx)unload3mod3.so $(objpfx)unload3mod4.so
+
 ifdef libdl
 $(objpfx)tst-tls9-static: $(common-objpfx)dlfcn/libdl.a
 $(objpfx)tst-tls9-static.out: $(objpfx)tst-tlsmod5.so $(objpfx)tst-tlsmod6.so
@@ -779,3 +790,6 @@ $(objpfx)tst-dlmopen2.out: $(objpfx)tst-dlmopen1mod.so
 
 $(objpfx)tst-dlmopen3: $(libdl)
 $(objpfx)tst-dlmopen3.out: $(objpfx)tst-dlmopen1mod.so
+
+$(objpfx)tst-global1: $(libdl)
+$(objpfx)tst-global1.out: $(objpfx)testobj6.so $(objpfx)testobj2.so

elf/dl-close.c

@@ -327,36 +327,6 @@ _dl_close (void *_map)
 	      }
 	  assert (found);
 	}
-      else if (new_opencount[i] != 0 && imap->l_type == lt_loaded
-	       && imap->l_searchlist.r_list == NULL
-	       && imap->l_initfini != NULL)
-	{
-	  /* The object is still used.  But the object we are
-	     unloading right now is responsible for loading it.  If
-	     the current object does not have it's own scope yet we
-	     have to create one.  This has to be done before running
-	     the finalizers.
-
-	     To do this count the number of dependencies.  */
-	  unsigned int cnt;
-	  for (cnt = 1; imap->l_initfini[cnt] != NULL; ++cnt)
-	    if (imap->l_initfini[cnt]->l_idx >= i
-		&& imap->l_initfini[cnt]->l_idx < nopencount)
-	      ++new_opencount[imap->l_initfini[cnt]->l_idx];
-	    else
-	      ++imap->l_initfini[cnt]->l_opencount;
-
-	  /* We simply reuse the l_initfini list.  */
-	  imap->l_searchlist.r_list = &imap->l_initfini[cnt + 1];
-	  imap->l_searchlist.r_nlist = cnt;
-
-	  for (cnt = 0; imap->l_scope[cnt] != NULL; ++cnt)
-	    if (imap->l_scope[cnt] == &map->l_searchlist)
-	      {
-		imap->l_scope[cnt] = &imap->l_searchlist;
-		break;
-	      }
-	}
 
       /* Store the new l_opencount value.  */
       imap->l_opencount = new_opencount[i];

elf/testobj2.c

@@ -23,3 +23,9 @@ preload (int a)
     return fp (a) + 10;
   return 10;
 }
+
+void
+p (void)
+{
+  puts ("hello world");
+}

elf/tst-global1.c

@@ -0,0 +1,36 @@
+#include <dlfcn.h>
+#include <stdio.h>
+
+int
+main (void)
+{
+  void *h1 = dlopen ("$ORIGIN/testobj6.so", RTLD_GLOBAL|RTLD_LAZY);
+  if (h1 == NULL)
+    {
+      puts ("cannot open testobj6");
+      return 1;
+    }
+
+  void *h2 = dlopen ("$ORIGIN/testobj2.so",
+		     RTLD_GLOBAL|RTLD_DEEPBIND|RTLD_LAZY);
+  if (h2 == NULL)
+    {
+      puts ("cannot open testobj2");
+      return 1;
+    }
+
+  dlclose (h1);
+
+  void (*f) (void) = dlsym (h2, "p");
+  if (f == NULL)
+    {
+      puts ("cannot find p");
+      return 1;
+    }
+
+  f ();
+
+  dlclose (h2);
+
+  return 0;
+}

elf/unload3.c

@@ -0,0 +1,41 @@
+#include <dlfcn.h>
+#include <stdio.h>
+
+int
+main (void)
+{
+  void *g = dlopen ("unload3mod1.so", RTLD_GLOBAL | RTLD_NOW);
+  void *h = dlopen ("unload3mod2.so", RTLD_GLOBAL | RTLD_NOW);
+  if (g == NULL || h == NULL)
+    {
+      printf ("dlopen unload3mod{1,2}.so failed: %p %p\n", g, h);
+      return 1;
+    }
+  dlclose (h);
+  dlclose (g);
+
+  g = dlopen ("unload3mod3.so", RTLD_GLOBAL | RTLD_NOW);
+  h = dlopen ("unload3mod4.so", RTLD_GLOBAL | RTLD_NOW);
+  if (g == NULL || h == NULL)
+    {
+      printf ("dlopen unload3mod{3,4}.so failed: %p %p\n", g, h);
+      return 1;
+    }
+
+  int (*fn) (int);
+  fn = dlsym (h, "bar");
+  if (fn == NULL)
+    {
+      puts ("dlsym failed");
+      return 1;
+    }
+
+  int val = fn (16);
+  if (val != 24)
+    {
+      printf ("bar returned %d != 24\n", val);
+      return 1;
+    }
+
+  return 0;
+}

elf/unload3mod1.c

@@ -0,0 +1 @@
+int dummy1;

elf/unload3mod2.c

@@ -0,0 +1 @@
+int dummy2;

elf/unload3mod3.c

@@ -0,0 +1,8 @@
+#include <stdio.h>
+
+int
+foo (int x)
+{
+  puts ("foo");
+  return x * 2;
+}

elf/unload3mod4.c

@@ -0,0 +1,11 @@
+#include <stdio.h>
+
+int
+bar (int x)
+{
+  puts ("bar");
+  fflush (stdout);
+  x = foo (x - 4);
+  puts ("bar after foo");
+  return x;
+}