universal7885: Import dlopener debugging tool

[Linux4: This is helpful for things like OMX which hide dlopen errors]

universal7885-common/debug-tools/dlopener/Android.bp

@@ -0,0 +1,12 @@
+cc_binary {
+    name: "dlopener",
+    srcs: ["dlopener.c"],
+    vendor_available: true,
+}
+
+cc_binary {
+    name: "dlopener32", 
+    srcs: ["dlopener.c"],
+    compile_multilib: "32",
+    vendor_available: true,
+}

universal7885-common/debug-tools/dlopener/dlopener.c

@@ -0,0 +1,28 @@
+#include <dlfcn.h>
+#include <errno.h>
+#include <stdio.h>
+
+int main(int argc, char *argv[])
+{
+    const char *path;
+    int status = -EINVAL;
+    void *handle = NULL;
+
+    if(argc <= 1) {
+        printf("Please specify a module to load!\n");
+        return status;
+    }
+
+    path = argv[1];
+
+    handle = dlopen(path, RTLD_NOW);
+    if (handle == NULL) {
+        char const *err_str = dlerror();
+        printf("load: module=%s\n%s\n", path, err_str?err_str:"unknown");
+        status = -EINVAL;
+    } else {
+        printf("load: module=%s %s\n", path,"Success!");
+    }
+
+    return status;
+}

universal7885-common/universal7885-common.mk

@@ -105,7 +105,7 @@ PRODUCT_PACKAGES += \
     libsuspend
 
 # Debug
-PRODUCT_PACKAGES += eklogger
+PRODUCT_PACKAGES += eklogger dlopener
 
 # DRM
 PRODUCT_PACKAGES += \