From e223eb95c4f3df36a7c24c3b9a4dfdeec06ac15d Mon Sep 17 00:00:00 2001
From: Chih-Hung Hsieh <chh@google.com>
Date: Fri, 20 Nov 2015 13:52:13 -0800
Subject: [PATCH] Disable clang for arm64 where local __thread is used.

clang/llvm for aarch64 generates relocation references
to local symbols and that is not supported by Android
dynamic linker.

BUG: 25642296
Change-Id: If99aca50002eef4cce7735c6defef2fcb76f5a9b
---
 libdw/Android.mk   | 3 +++
 libdwfl/Android.mk | 3 +++
 libelf/Android.mk  | 3 +++
 3 files changed, 9 insertions(+)

diff --git a/libdw/Android.mk b/libdw/Android.mk
index 6e8d77ddf..55a04dc96 100755
--- a/libdw/Android.mk
+++ b/libdw/Android.mk
@@ -178,6 +178,9 @@ include $(CLEAR_VARS)
 # Clang has no nested functions.
 LOCAL_CLANG := false
 
+# b/25642296, local __thread variable does not work with arm64 clang/llvm.
+LOCAL_CLANG_arm64 := false
+
 LOCAL_SRC_FILES := $(LIBDW_SRC_FILES)
 
 LOCAL_C_INCLUDES := \
diff --git a/libdwfl/Android.mk b/libdwfl/Android.mk
index eb668e2c4..a2c099313 100755
--- a/libdwfl/Android.mk
+++ b/libdwfl/Android.mk
@@ -134,6 +134,9 @@ include $(CLEAR_VARS)
 # Clang has no nested functions.
 LOCAL_CLANG := false
 
+# b/25642296, local __thread variable does not work with arm64 clang/llvm.
+LOCAL_CLANG_arm64 := false
+
 LOCAL_SRC_FILES := $(LIBDWFL_SRC_FILES)
 
 LOCAL_C_INCLUDES := \
diff --git a/libelf/Android.mk b/libelf/Android.mk
index 9fc71ace7..1c0195c44 100755
--- a/libelf/Android.mk
+++ b/libelf/Android.mk
@@ -160,6 +160,9 @@ endif # linux
 
 include $(CLEAR_VARS)
 
+# b/25642296, local __thread variable does not work with arm64 clang/llvm.
+LOCAL_CLANG_arm64 := false
+
 LOCAL_SRC_FILES := $(LIBELF_SRC_FILES)
 
 LOCAL_C_INCLUDES := \