make sure static variables are re-initialized everytime

1 files changed, 43 insertions, 0 deletions

diff --git a/test/dlopen/dlstatic.c b/test/dlopen/dlstatic.c
new file mode 100644
index 000000000..57c8c5dd1
--- /dev/null
+++ b/test/dlopen/dlstatic.c
@@ -0,0 +1,43 @@
+#include <fcntl.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <dlfcn.h>
+#include <stdint.h>
+
+#define LIBNAME "libstatic.so"
+
+int load_and_test(void)
+{
+	void *handle;
+	int (*mystatic)(void);
+
+	handle = dlopen(LIBNAME, RTLD_LAZY);
+	if (!handle) {
+		fprintf(stderr, "Could not open ./%s: %s\n", LIBNAME, dlerror());
+		return 1;
+	}
+
+	mystatic = dlsym(handle, "static_test");
+	if (mystatic == NULL) {
+		fprintf(stderr, "Could not locate symbol 'static_test': %s\n", dlerror());
+		return 1;
+	}
+
+	if (!mystatic()) {
+		fprintf(stderr, "mystatic() failed: static vars were not setup properly\n");
+		return 1;
+	}
+
+	dlclose(handle);
+
+	return 0;
+}
+
+int main(int argc, char **argv)
+{
+	int count = 5;
+	while (count-- > 0)
+		if (load_and_test())
+			return EXIT_FAILURE;
+	return EXIT_SUCCESS;
+}