deps: patch V8 to support compilation on win-arm64

Author: targos

common.gypi

@@ -36,7 +36,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.2',
+    'v8_embedder_string': '-node.3',
 
     ##### V8 defaults for Node.js #####
 

deps/v8/src/execution/arm64/simulator-arm64.cc

@@ -35,6 +35,11 @@
 #include "src/trap-handler/trap-handler-simulator.h"
 #endif  // V8_ENABLE_WEBASSEMBLY
 
+#if defined(_MSC_VER)
+// define full memory barrier for msvc
+#define __sync_synchronize _ReadWriteBarrier
+#endif
+
 namespace v8 {
 namespace internal {
 

deps/v8/src/trap-handler/trap-handler-simulator.h

@@ -34,8 +34,10 @@ uintptr_t ProbeMemory(uintptr_t address, uintptr_t pc)
 // "ProbeMemory", but we want something more expressive on stack traces.
 #if V8_OS_DARWIN
     asm("_v8_internal_simulator_ProbeMemory");
-#else
+#elif !defined(_MSC_VER)
     asm("v8_internal_simulator_ProbeMemory");
+#else // MSVC
+    ;
 #endif
 
 }  // namespace v8::internal::trap_handler