Improved dlsym tests and fixes to linker
Answers the question: what if dependent library
was preloaded with RTLD_LOCAL flag.
Also add test for RTLD_NEXT within local_group.
Bug: http://b/17512583
Change-Id: I79e081e68b3a8c0ed8980d4275a06515fea94ec9
(cherry picked from commit 697bd9fd38ab078a117ad9a5777cf286c467b9b9)
diff --git a/tests/libs/dlsym_from_this_functions.cpp b/tests/libs/dlsym_from_this_functions.cpp
new file mode 100644
index 0000000..1f357e0
--- /dev/null
+++ b/tests/libs/dlsym_from_this_functions.cpp
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <dlfcn.h>
+#include <stdio.h>
+
+extern int test_dlsym_symbol;
+
+int test_dlsym_symbol = -1;
+
+extern "C" int* lookup_dlsym_symbol_using_RTLD_DEFAULT() {
+ dlerror();
+ int* result = static_cast<int*>(dlsym(RTLD_DEFAULT, "test_dlsym_symbol"));
+ // TODO: remove this once b/20049306 is fixed
+ if (result == nullptr) {
+ printf("Cannot find the answer\n");
+ }
+ return result;
+}
+
+extern "C" int* lookup_dlsym_symbol2_using_RTLD_DEFAULT() {
+ dlerror();
+ int* result = static_cast<int*>(dlsym(RTLD_DEFAULT, "test_dlsym_symbol2"));
+ // TODO: remove this once b/20049306 is fixed
+ if (result == nullptr) {
+ printf("Cannot find the answer\n");
+ }
+ return result;
+}
+
+extern "C" int* lookup_dlsym_symbol_using_RTLD_NEXT() {
+ dlerror();
+ int* result = static_cast<int*>(dlsym(RTLD_NEXT, "test_dlsym_symbol"));
+ // TODO: remove this once b/20049306 is fixed
+ if (result == nullptr) {
+ printf("Cannot find the answer\n");
+ }
+ return result;
+}
+