Update.

	* elf/constload1.c: Call mtrace.  Check return value of dlclose call.
	* elf/constload2.c: Add destructor to unload constload3.

2 files changed, 30 insertions, 1 deletions

diff --git a/elf/constload1.c b/elf/constload1.c
index 1435284..4640b77 100644
--- a/elf/constload1.c
+++ b/elf/constload1.c
@@ -1,6 +1,7 @@
 #include <dlfcn.h>
 #include <errno.h>
 #include <error.h>
+#include <mcheck.h>
 #include <stdlib.h>
 
 int
@@ -10,11 +11,17 @@ main (void)
   void *h;
   int ret;
 
+  mtrace ();
+
   h = dlopen ("constload2.so", RTLD_LAZY | RTLD_GLOBAL);
   if (h == NULL)
     error (EXIT_FAILURE, errno, "cannot load module \"constload2.so\"");
   foo = dlsym (h, "foo");
   ret = foo ();
-  dlclose (h);
+  if (dlclose (h) != 0)
+    {
+      puts ("failed to close");
+      exit (EXIT_FAILURE);
+    }
   return ret;
 }
diff --git a/elf/constload2.c b/elf/constload2.c
index f109838..d20e6dc 100644
--- a/elf/constload2.c
+++ b/elf/constload2.c
@@ -1,4 +1,6 @@
 #include <dlfcn.h>
+#include <stdio.h>
+#include <stdlib.h>
 
 extern int bar (void);
 
@@ -21,4 +23,24 @@ __attribute__ ((__constructor__))
 init (void)
 {
   h = dlopen ("constload3.so", RTLD_GLOBAL | RTLD_LAZY);
+  if (h == NULL)
+    {
+      puts ("failed to load constload3");
+      exit (1);
+    }
+  else
+    puts ("succeeded loading constload3");
+}
+
+static void
+__attribute__ ((__destructor__))
+fini (void)
+{
+  if (dlclose (h) != 0)
+    {
+      puts ("failed to unload constload3");
+      exit (1);
+    }
+  else
+    puts ("succeeded unloading constload3");
 }