From: Iain Lane <iain.lane@canonical.com>
Description: Fix arm64 build
 Add AArch64 support in Platform.h
 Don't use COMPARE_AND_SWAP on arm64; it produces invalid asm.
 Fix some other areas where disabling JIT doesn't work.
Bug-Debian: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=752735
Forwarded: no
Index: b/modules/web/src/main/native/Source/WTF/wtf/Platform.h
===================================================================
--- a/modules/web/src/main/native/Source/WTF/wtf/Platform.h
+++ b/modules/web/src/main/native/Source/WTF/wtf/Platform.h
@@ -164,6 +164,14 @@
 #define WTF_CPU_ARM64 1
 #endif
 
+/* CPU(ARM64) - AArch64 */
+#if defined(__aarch64__)
+#define WTF_CPU_ARM64 1
+#if defined(__AARCH64BE__)
+#define WTF_CPU_BIG_ENDIAN 1
+#endif
+#endif
+
 /* CPU(ARM) - ARM, any version*/
 #define WTF_ARM_ARCH_AT_LEAST(N) (CPU(ARM) && WTF_ARM_ARCH_VERSION >= N)
 
Index: b/modules/web/src/main/native/Source/WebCore/platform/graphics/transforms/TransformationMatrix.cpp
===================================================================
--- a/modules/web/src/main/native/Source/WebCore/platform/graphics/transforms/TransformationMatrix.cpp
+++ b/modules/web/src/main/native/Source/WebCore/platform/graphics/transforms/TransformationMatrix.cpp
@@ -1035,7 +1035,7 @@ TransformationMatrix TransformationMatri
 // this = mat * this.
 TransformationMatrix& TransformationMatrix::multiply(const TransformationMatrix& mat)
 {
-#if CPU(ARM64)
+#if CPU(ARM64) && PLATFORM(IOS)
     double* leftMatrix = &(m_matrix[0][0]);
     const double* rightMatrix = &(mat.m_matrix[0][0]);
     asm volatile (