diff --git a/tests/dlext_test.cpp b/tests/dlext_test.cpp
index 44b899e..9d8b71d 100644
--- a/tests/dlext_test.cpp
+++ b/tests/dlext_test.cpp
@@ -52,15 +52,15 @@
 #define LIBSIZE 1024*1024 // how much address space to reserve for it
 
 #if defined(__LP64__)
-#define LIBPATH_PREFIX "/nativetest64/libdlext_test_fd/"
+#define LIBPATH_PREFIX "/nativetest64/"
 #else
-#define LIBPATH_PREFIX "/nativetest/libdlext_test_fd/"
+#define LIBPATH_PREFIX "/nativetest/"
 #endif
 
-#define LIBPATH LIBPATH_PREFIX "libdlext_test_fd.so"
-#define LIBZIPPATH LIBPATH_PREFIX "libdlext_test_fd_zipaligned.zip"
+#define LIBPATH LIBPATH_PREFIX "libdlext_test_fd/libdlext_test_fd.so"
+#define LIBZIPPATH LIBPATH_PREFIX "libdlext_test_zip/libdlext_test_zip_zipaligned.zip"
 
-#define LIBZIP_OFFSET 2*PAGE_SIZE
+#define LIBZIP_OFFSET PAGE_SIZE
 
 class DlExtTest : public ::testing::Test {
 protected:
@@ -131,9 +131,9 @@
   handle_ = android_dlopen_ext(lib_path.c_str(), RTLD_NOW, &extinfo);
   ASSERT_DL_NOTNULL(handle_);
 
-  fn f = reinterpret_cast<fn>(dlsym(handle_, "getRandomNumber"));
-  ASSERT_DL_NOTNULL(f);
-  EXPECT_EQ(4, f());
+  uint32_t* taxicab_number = reinterpret_cast<uint32_t*>(dlsym(handle_, "dlopen_testlib_taxicab_number"));
+  ASSERT_DL_NOTNULL(taxicab_number);
+  EXPECT_EQ(1729U, *taxicab_number);
 }
 
 TEST_F(DlExtTest, ExtInfoUseFdWithInvalidOffset) {
@@ -163,7 +163,7 @@
   ASSERT_TRUE(handle_ == nullptr);
   ASSERT_SUBSTR("dlopen failed: file offset for the library \"libname_placeholder\" is negative", dlerror());
 
-  extinfo.library_fd_offset = PAGE_SIZE;
+  extinfo.library_fd_offset = 0;
   handle_ = android_dlopen_ext("libname_ignored", RTLD_NOW, &extinfo);
   ASSERT_TRUE(handle_ == nullptr);
   ASSERT_EQ("dlopen failed: \"" + lib_realpath + "\" has bad ELF magic", dlerror());
@@ -218,13 +218,12 @@
 TEST(dlfcn, dlopen_from_zip_absolute_path) {
   const std::string lib_path = std::string(getenv("ANDROID_DATA")) + LIBZIPPATH;
 
-  void* handle = dlopen((lib_path + "!/libdir/libdlext_test_fd.so").c_str(), RTLD_NOW);
+  void* handle = dlopen((lib_path + "!/libdir/libatest_simple_zip.so").c_str(), RTLD_NOW);
   ASSERT_TRUE(handle != nullptr) << dlerror();
 
-  int (*fn)(void);
-  fn = reinterpret_cast<int (*)(void)>(dlsym(handle, "getRandomNumber"));
-  ASSERT_TRUE(fn != nullptr);
-  EXPECT_EQ(4, fn());
+  uint32_t* taxicab_number = reinterpret_cast<uint32_t*>(dlsym(handle, "dlopen_testlib_taxicab_number"));
+  ASSERT_DL_NOTNULL(taxicab_number);
+  EXPECT_EQ(1729U, *taxicab_number);
 
   dlclose(handle);
 }
@@ -238,12 +237,12 @@
 
   ASSERT_TRUE(android_update_LD_LIBRARY_PATH != nullptr) << dlerror();
 
-  void* handle = dlopen("libdlext_test_fd.so", RTLD_NOW);
+  void* handle = dlopen("libdlext_test_zip.so", RTLD_NOW);
   ASSERT_TRUE(handle == nullptr);
 
   android_update_LD_LIBRARY_PATH(lib_path.c_str());
 
-  handle = dlopen("libdlext_test_fd.so", RTLD_NOW);
+  handle = dlopen("libdlext_test_zip.so", RTLD_NOW);
   ASSERT_TRUE(handle != nullptr) << dlerror();
 
   int (*fn)(void);
@@ -251,6 +250,10 @@
   ASSERT_TRUE(fn != nullptr);
   EXPECT_EQ(4, fn());
 
+  uint32_t* taxicab_number = reinterpret_cast<uint32_t*>(dlsym(handle, "dlopen_testlib_taxicab_number"));
+  ASSERT_DL_NOTNULL(taxicab_number);
+  EXPECT_EQ(1729U, *taxicab_number);
+
   dlclose(handle);
 }
 
diff --git a/tests/libs/Android.build.dlext_testzip.mk b/tests/libs/Android.build.dlext_testzip.mk
index 1e89411..93df213 100644
--- a/tests/libs/Android.build.dlext_testzip.mk
+++ b/tests/libs/Android.build.dlext_testzip.mk
@@ -21,21 +21,21 @@
 include $(CLEAR_VARS)
 
 LOCAL_MODULE_CLASS := SHARED_LIBRARIES
-LOCAL_MODULE := libdlext_test_fd_zipaligned
+LOCAL_MODULE := libdlext_test_zip_zipaligned
 LOCAL_MODULE_SUFFIX := .zip
 LOCAL_MODULE_TAGS := tests
-LOCAL_MODULE_PATH := $($(bionic_2nd_arch_prefix)TARGET_OUT_DATA_NATIVE_TESTS)/libdlext_test_fd
+LOCAL_MODULE_PATH := $($(bionic_2nd_arch_prefix)TARGET_OUT_DATA_NATIVE_TESTS)/libdlext_test_zip
 LOCAL_2ND_ARCH_VAR_PREFIX := $(bionic_2nd_arch_prefix)
 
 include $(BUILD_SYSTEM)/base_rules.mk
 
 my_shared_libs := \
-  $($(bionic_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/libdlext_test_fd.so
+  $($(bionic_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/libdlext_test_zip.so \
+  $($(bionic_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/libatest_simple_zip.so
 
-$(LOCAL_BUILT_MODULE): PRIVATE_ALIGNMENT := 4096 # PAGE_SIZE
 $(LOCAL_BUILT_MODULE) : $(my_shared_libs) | $(ZIPALIGN)
 	@echo "Zipalign $(PRIVATE_ALIGNMENT): $@"
 	$(hide) rm -rf $(dir $@) && mkdir -p $(dir $@)/libdir
 	$(hide) cp $^ $(dir $@)/libdir
 	$(hide) (cd $(dir $@) && touch empty_file.txt && zip -qrD0 $(notdir $@).unaligned empty_file.txt libdir/*.so)
-	$(hide) $(ZIPALIGN) $(PRIVATE_ALIGNMENT) $@.unaligned $@
+	$(hide) $(ZIPALIGN) -p 4 $@.unaligned $@
diff --git a/tests/libs/Android.mk b/tests/libs/Android.mk
index b13400e..3391d79 100644
--- a/tests/libs/Android.mk
+++ b/tests/libs/Android.mk
@@ -126,6 +126,32 @@
 build_target := SHARED_LIBRARY
 include $(TEST_PATH)/Android.build.mk
 
+
+# -----------------------------------------------------------------------------
+# Libraries used by dlext tests for open from a zip-file
+# -----------------------------------------------------------------------------
+libdlext_test_zip_src_files := \
+    dlext_test_library.cpp \
+
+libdlext_test_zip_shared_libraries := libatest_simple_zip
+
+libdlext_test_zip_install_to_out_data := true
+module := libdlext_test_zip
+module_tag := optional
+build_type := target
+build_target := SHARED_LIBRARY
+include $(TEST_PATH)/Android.build.mk
+
+libatest_simple_zip_src_files := \
+    dlopen_testlib_simple.cpp
+
+libatest_simple_zip_install_to_out_data := true
+module := libatest_simple_zip
+module_tag := optional
+build_type := target
+build_target := SHARED_LIBRARY
+include $(TEST_PATH)/Android.build.mk
+
 # ----------------------------------------------------------------------------
 # Library with soname which does not match filename
 # ----------------------------------------------------------------------------