Yet another relocation test
This time we check if a -> b -> c function in 'a' relocates against
implementation in 'c'.
Change-Id: I528180c3efd346bd447ea0237e5a8a0ac3cc031f
diff --git a/tests/dlfcn_test.cpp b/tests/dlfcn_test.cpp
index 88f0b19..ea20869 100644
--- a/tests/dlfcn_test.cpp
+++ b/tests/dlfcn_test.cpp
@@ -278,6 +278,44 @@
ASSERT_EQ(0, dlclose(handle));
}
+TEST(dlfcn, dlopen_check_order_reloc_grandchild) {
+ // This is how this one works:
+ // we lookup and call grandchild_get_answer which is defined in '_2.so'
+ // and in turn calls external get_answer_impl() defined in '_c_1.so and _c_2.so'
+ // the correct _impl() is implemented by '_c_1.so';
+ //
+ // Here is the picture of subtree:
+ //
+ // libtest_check_order_reloc_siblings.so
+ // |
+ // +-> ..._2.so <- grandchild_get_answer()
+ // |
+ // +-> ..._c.so <- empty
+ // | |
+ // | +-> _c_1.so <- exports correct answer_impl()
+ // | |
+ // | +-> _c_2.so <- exports incorrect answer_impl()
+ // |
+ // +-> ..._d.so <- empty
+
+ void* handle = dlopen("libtest_check_order_reloc_siblings.so", RTLD_NOW | RTLD_NOLOAD);
+ ASSERT_TRUE(handle == nullptr);
+#ifdef __BIONIC__
+ // TODO: glibc returns nullptr on dlerror() here. Is it bug?
+ ASSERT_STREQ("dlopen failed: library \"libtest_check_order_reloc_siblings.so\" wasn't loaded and RTLD_NOLOAD prevented it", dlerror());
+#endif
+
+ handle = dlopen("libtest_check_order_reloc_siblings.so", RTLD_NOW | RTLD_LOCAL);
+ ASSERT_TRUE(handle != nullptr) << dlerror();
+
+ typedef int (*fn_t) (void);
+ fn_t fn = reinterpret_cast<fn_t>(dlsym(handle, "check_order_reloc_grandchild_get_answer"));
+ ASSERT_TRUE(fn != nullptr) << dlerror();
+ ASSERT_EQ(42, fn());
+
+ ASSERT_EQ(0, dlclose(handle));
+}
+
TEST(dlfcn, dlopen_check_order_reloc_nephew) {
// This is how this one works:
// we lookup and call nephew_get_answer which is defined in '_2.so'