linker: the global group is added to all built-in namespaces
With ld.config.txt, we now have multiple built-in namespaces other than
the default namespace. Libs (and their dependents) listed in LD_PRELOAD
must be visible to those additional namespaces as well.
This also adds a debugging only feature: path to the linker config file
can be customized via LD_CONFIG_FILE environment variable. This works
only for debuggable builds.
Bug: 38114603
Bug: 62815515
Test: 1. ./external/compiler-rt/lib/asan/scripts/asan_device_setup --lib
prebuilts/clang/host/linux-x86/clang-stable/lib64/clang/5.0/lib/linux
2. enable talkback shortcut
3. in the home screen, hold vol-up/down together
4. device does not reboots and talkback shortcut is toggled
Test: bionic-unit-tests and linker-unit-tests successful
Change-Id: I9a03591053f4a9caea82f0dcb23e7a3d324bb9bd
diff --git a/tests/libs/Android.bp b/tests/libs/Android.bp
index 973a8d2..c1600cc 100644
--- a/tests/libs/Android.bp
+++ b/tests/libs/Android.bp
@@ -617,3 +617,59 @@
defaults: ["bionic_testlib_defaults"],
srcs: ["preinit_syscall_test_helper.cpp"],
}
+
+cc_test {
+ name: "ld_preload_test_helper",
+ host_supported: false,
+ defaults: ["bionic_testlib_defaults"],
+ srcs: ["ld_preload_test_helper.cpp"],
+ shared_libs: ["ld_preload_test_helper_lib1"],
+ ldflags: ["-Wl,--rpath,${ORIGIN}/.."],
+}
+
+cc_test_library {
+ name: "ld_preload_test_helper_lib1",
+ host_supported: false,
+ defaults: ["bionic_testlib_defaults"],
+ srcs: ["ld_preload_test_helper_lib1.cpp"],
+}
+
+cc_test_library {
+ name: "ld_preload_test_helper_lib2",
+ host_supported: false,
+ defaults: ["bionic_testlib_defaults"],
+ srcs: ["ld_preload_test_helper_lib2.cpp"],
+}
+
+cc_test {
+ name: "ld_config_test_helper",
+ host_supported: false,
+ defaults: ["bionic_testlib_defaults"],
+ srcs: ["ld_config_test_helper.cpp"],
+ shared_libs: ["ld_config_test_helper_lib1"],
+ ldflags: ["-Wl,--rpath,${ORIGIN}/.."],
+}
+
+cc_test_library {
+ name: "ld_config_test_helper_lib1",
+ host_supported: false,
+ defaults: ["bionic_testlib_defaults"],
+ srcs: ["ld_config_test_helper_lib1.cpp"],
+ shared_libs: ["ld_config_test_helper_lib2"],
+ relative_install_path: "/ns2",
+}
+
+cc_test_library {
+ name: "ld_config_test_helper_lib2",
+ host_supported: false,
+ defaults: ["bionic_testlib_defaults"],
+ srcs: ["ld_config_test_helper_lib2.cpp"],
+ relative_install_path: "/ns2",
+}
+
+cc_test_library {
+ name: "ld_config_test_helper_lib3",
+ host_supported: false,
+ defaults: ["bionic_testlib_defaults"],
+ srcs: ["ld_config_test_helper_lib3.cpp"],
+}
diff --git a/tests/libs/ld_config_test_helper.cpp b/tests/libs/ld_config_test_helper.cpp
new file mode 100644
index 0000000..592e8c0
--- /dev/null
+++ b/tests/libs/ld_config_test_helper.cpp
@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2017 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 <errno.h>
+#include <stdio.h>
+#include <unistd.h>
+
+extern int get_value_from_lib();
+
+int main() {
+ printf("%d", get_value_from_lib());
+ return 0;
+}
diff --git a/tests/libs/ld_config_test_helper_lib1.cpp b/tests/libs/ld_config_test_helper_lib1.cpp
new file mode 100644
index 0000000..fc5401a
--- /dev/null
+++ b/tests/libs/ld_config_test_helper_lib1.cpp
@@ -0,0 +1,4 @@
+extern int get_value_from_another_lib();
+int get_value_from_lib() {
+ return get_value_from_another_lib();
+}
diff --git a/tests/libs/ld_config_test_helper_lib2.cpp b/tests/libs/ld_config_test_helper_lib2.cpp
new file mode 100644
index 0000000..a620a6c
--- /dev/null
+++ b/tests/libs/ld_config_test_helper_lib2.cpp
@@ -0,0 +1,3 @@
+int get_value_from_another_lib() {
+ return 12345;
+}
diff --git a/tests/libs/ld_config_test_helper_lib3.cpp b/tests/libs/ld_config_test_helper_lib3.cpp
new file mode 100644
index 0000000..93d1cd8
--- /dev/null
+++ b/tests/libs/ld_config_test_helper_lib3.cpp
@@ -0,0 +1,3 @@
+int get_value_from_another_lib() {
+ return 54321;
+}
diff --git a/tests/libs/ld_preload_test_helper.cpp b/tests/libs/ld_preload_test_helper.cpp
new file mode 100644
index 0000000..592e8c0
--- /dev/null
+++ b/tests/libs/ld_preload_test_helper.cpp
@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2017 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 <errno.h>
+#include <stdio.h>
+#include <unistd.h>
+
+extern int get_value_from_lib();
+
+int main() {
+ printf("%d", get_value_from_lib());
+ return 0;
+}
diff --git a/tests/libs/ld_preload_test_helper_lib1.cpp b/tests/libs/ld_preload_test_helper_lib1.cpp
new file mode 100644
index 0000000..74e89db
--- /dev/null
+++ b/tests/libs/ld_preload_test_helper_lib1.cpp
@@ -0,0 +1,3 @@
+int get_value_from_lib() {
+ return 12345;
+}
diff --git a/tests/libs/ld_preload_test_helper_lib2.cpp b/tests/libs/ld_preload_test_helper_lib2.cpp
new file mode 100644
index 0000000..9239891
--- /dev/null
+++ b/tests/libs/ld_preload_test_helper_lib2.cpp
@@ -0,0 +1,3 @@
+int get_value_from_lib() {
+ return 54321;
+}