Work around Clang not passing --eh-frame-hdr.

Clang doesn't pass this automatically for static executables for some
reason, and libgcc can't unwind without a .eh_frame_hdr section.

Also move the test to libc++ since gnustl is going away soon.

Test: ./run_tests.py --filter static-executable-exceptions
Bug: http://b/24468267
Bug: http://b/30101473
Bug: http://b/72512648
Bug: android/ndk#593
Change-Id: I153dfee4d22082560833517f1ee575742da21e21
(cherry picked from commit 2f7aa277079f13e431f355c33ccf1ab601d3e947)

tests/device/static-executable-exceptions/jni/Android.mk

@@ -3,6 +3,6 @@ LOCAL_PATH := $(call my-dir)
 include $(CLEAR_VARS)
 LOCAL_MODULE := static-executable
 LOCAL_SRC_FILES := main.cpp
-LOCAL_CFLAGS += -fexceptions
-LOCAL_LDFLAGS += -static
+LOCAL_CPPFLAGS := -fexceptions
+LOCAL_LDFLAGS := -static -Wl,--eh-frame-hdr
 include $(BUILD_EXECUTABLE)

tests/device/static-executable-exceptions/test_config.py

@@ -4,9 +4,4 @@ def run_broken(abi, _device_api, toolchain, _subtest):
         # update to the static libraries to fix this.
         return abi, 'https://github.com/android-ndk/ndk/issues/593'
 
-    if toolchain == 'clang':
-        # Clang doesn't pass --eh-frame-hdr to the linker for static
-        # executables.
-        return ' '.join([abi, toolchain]), 'http://b/30101473'
-
     return None, None