diff --git a/[refs] b/[refs]
index 636cfb91b10c..ef858b395915 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d30ff29562ecbf79e82df72724d0c6180f2e2c06
+refs/heads/master: cd69ef88a7cbe5ad404454ed8f491e6b16b4e86f
diff --git a/trunk/tools/perf/Documentation/android.txt b/trunk/tools/perf/Documentation/android.txt
index a39dbbb44c4c..8484c3a04a6a 100644
--- a/trunk/tools/perf/Documentation/android.txt
+++ b/trunk/tools/perf/Documentation/android.txt
@@ -48,7 +48,10 @@ For x86:
 II. Compile perf for Android
 ------------------------------------------------
 You need to run make with the NDK toolchain and sysroot defined above:
-  make CROSS_COMPILE=${NDK_TOOLCHAIN} CFLAGS="--sysroot=${NDK_SYSROOT}"
+For arm:
+  make ARCH=arm CROSS_COMPILE=${NDK_TOOLCHAIN} CFLAGS="--sysroot=${NDK_SYSROOT}"
+For x86:
+  make ARCH=x86 CROSS_COMPILE=${NDK_TOOLCHAIN} CFLAGS="--sysroot=${NDK_SYSROOT}"
 
 III. Install perf
 -----------------------------------------------