Bug 1253809 - Add Android/aarch64 build config. r=glandium

MozReview-Commit-ID: 2WN6GOWb572

--HG--
extra : rebase_source : 956280be205109d1d28f8e33a3348811caa7d215

build/autoconf/android.m4

@@ -52,6 +52,9 @@ if test "$OS_TARGET" = "Android"; then
     mips32-*) # When target_cpu is mipsel, CPU_ARCH is mips32
         ANDROID_CPU_ARCH=mips
         ;;
+    aarch64-*)
+        ANDROID_CPU_ARCH=arm64-v8a
+        ;;
     esac
 
     AC_SUBST(ANDROID_CPU_ARCH)

build/moz.configure/android-ndk.configure

@@ -60,6 +60,8 @@ def android_platform(target, android_version, ndk):
 
     if 'mips' in target.cpu:
         target_dir_name = 'mips'
+    elif 'aarch64' == target.cpu:
+        target_dir_name = 'arm64'
     else:
         target_dir_name = target.cpu
 
@@ -108,6 +110,8 @@ def android_toolchain(target, host, ndk, toolchain, gnu_compiler_version):
             target_base = 'x86'
         elif target.cpu == 'mips32' and target.endianness == 'little':
             target_base = 'mipsel-linux-android'
+        elif target.cpu == 'aarch64' and target.endianness == 'little':
+            target_base = 'aarch64-linux-android'
         else:
             die('Target cpu is not supported.')