From fcd00ebbdf3e7f4e1e7782a65ae10fb0fc03a1aa Mon Sep 17 00:00:00 2001
From: Andy McFadden <fadden@android.com>
Date: Fri, 28 May 2010 13:31:45 -0700
Subject: Atomic/SMP update, part 3.

Update ARM atomic ops to use LDREX/STREX.  Stripped out #if 0 chunk.

Insert explicit memory barriers in pthread and semaphore code.

For bug 2721865.

Change-Id: I0f153b797753a655702d8be41679273d1d5d6ae7
---
 libc/Android.mk | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'libc/Android.mk')

diff --git a/libc/Android.mk b/libc/Android.mk
index 0271f10..831352b 100644
--- a/libc/Android.mk
+++ b/libc/Android.mk
@@ -455,6 +455,14 @@ else # !arm
   endif # x86
 endif # !arm
 
+# Define ANDROID_SMP appropriately.
+ifeq ($(TARGET_CPU_SMP),true)
+    libc_common_cflags += -DANDROID_SMP=1
+else
+    libc_common_cflags += -DANDROID_SMP=0
+endif
+
+
 # Define some common includes
 # ========================================================
 libc_common_c_includes := \
-- 
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