From 4340a14fbfe761a46e7a655b568cbd0953773df3 Mon Sep 17 00:00:00 2001
From: Dmitriy Ivanov <dimitry@google.com>
Date: Mon, 20 Oct 2014 14:17:26 -0700
Subject: [PATCH] Switch to libsigchain.a

  Use LOCAL_WHOLE_STATIC_LIBRARIES to instruct static linker
  to export symbols from the static library.

Change-Id: I0e41cf173be96c52cdad72b1ef4a1bf819e65dd2
---
 services/surfaceflinger/Android.mk         | 10 ++++------
 services/surfaceflinger/sigchain_proxy.cpp | 17 -----------------
 2 files changed, 4 insertions(+), 23 deletions(-)
 delete mode 100644 services/surfaceflinger/sigchain_proxy.cpp

diff --git a/services/surfaceflinger/Android.mk b/services/surfaceflinger/Android.mk
index 3416e48e4..b0b13e761 100644
--- a/services/surfaceflinger/Android.mk
+++ b/services/surfaceflinger/Android.mk
@@ -107,15 +107,11 @@ include $(BUILD_SHARED_LIBRARY)
 include $(CLEAR_VARS)
 
 LOCAL_LDFLAGS := -Wl,--version-script,art/sigchainlib/version-script.txt -Wl,--export-dynamic
-LOCAL_CFLAGS:= -DLOG_TAG=\"SurfaceFlinger\" -Iart
+LOCAL_CFLAGS:= -DLOG_TAG=\"SurfaceFlinger\"
 LOCAL_CPPFLAGS:= -std=c++11
 
-# TODO: Trying to link libsigchain as a static library prevents
-# static linker from exporting necessary symbols. So as a workaround
-# we use sigchain.o
 LOCAL_SRC_FILES:= \
-	main_surfaceflinger.cpp \
-	sigchain_proxy.cpp
+	main_surfaceflinger.cpp
 
 LOCAL_SHARED_LIBRARIES := \
 	libsurfaceflinger \
@@ -125,6 +121,8 @@ LOCAL_SHARED_LIBRARIES := \
 	libutils \
 	libdl
 
+LOCAL_WHOLE_STATIC_LIBRARIES := libsigchain
+
 LOCAL_MODULE:= surfaceflinger
 
 ifdef TARGET_32_BIT_SURFACEFLINGER
diff --git a/services/surfaceflinger/sigchain_proxy.cpp b/services/surfaceflinger/sigchain_proxy.cpp
deleted file mode 100644
index bb7a678d2..000000000
--- a/services/surfaceflinger/sigchain_proxy.cpp
+++ /dev/null
@@ -1,17 +0,0 @@
-/*
- * Copyright (C) 2014 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 "sigchainlib/sigchain.cc"