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-rw-r--r--elf/unload4.c48
1 files changed, 48 insertions, 0 deletions
diff --git a/elf/unload4.c b/elf/unload4.c
new file mode 100644
index 0000000..6e171a2
--- /dev/null
+++ b/elf/unload4.c
@@ -0,0 +1,48 @@
+#include <dlfcn.h>
+#include <stdio.h>
+#include <malloc.h>
+
+int
+main (void)
+{
+#ifdef M_PERTURB
+ mallopt (M_PERTURB, 0xaa);
+#endif
+
+ void *h;
+ int (*fn) (int);
+ h = dlopen ("unload4mod1.so", RTLD_LAZY);
+ if (h == NULL)
+ {
+ puts ("1st dlopen failed");
+ return 1;
+ }
+ fn = dlsym (h, "foo");
+ if (fn == NULL)
+ {
+ puts ("dlsym failed");
+ return 1;
+ }
+ int n = fn (10);
+ if (n != 28)
+ {
+ printf ("foo (10) returned %d != 28\n", n);
+ return 1;
+ }
+ dlclose (h);
+ h = dlopen ("unload4mod3.so", RTLD_LAZY);
+ fn = dlsym (h, "mod3fn2");
+ if (fn == NULL)
+ {
+ puts ("second dlsym failed");
+ return 1;
+ }
+ n = fn (10);
+ if (n != 22)
+ {
+ printf ("mod3fn2 (10) returned %d != 22\n", n);
+ return 1;
+ }
+ dlclose (h);
+ return 0;
+}