WIP: wasm oob trap handling experiments

src/runtime/runtime-internal.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "src/runtime/runtime-utils.h"
+#include <setjmp.h>
 
 #include <memory>
 
 #include "src/arguments.h"
 #include "src/ast/prettyprinter.h"
 #include "src/bootstrapper.h"
 #include "src/conversions.h"
 #include "src/debug/debug.h"
 #include "src/frames-inl.h"
 #include "src/isolate-inl.h"
 #include "src/messages.h"
 #include "src/parsing/parse-info.h"
 #include "src/parsing/parser.h"
+#include "src/runtime/runtime-utils.h"
 #include "src/wasm/wasm-module.h"
 
 namespace v8 {
 namespace internal {
 
 RUNTIME_FUNCTION(Runtime_CheckIsBootstrapping) {
   SealHandleScope shs(isolate);
   DCHECK(args.length() == 0);
   CHECK(isolate->bootstrapper()->IsActive());
   return isolate->heap()->undefined_value();
@@ skipping 50 matching lines @@
   return isolate->heap()->undefined_value();
 }
 
 
 RUNTIME_FUNCTION(Runtime_Throw) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 1);
   return isolate->Throw(args[0]);
 }
 
-
 RUNTIME_FUNCTION(Runtime_ReThrow) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 1);
   return isolate->ReThrow(args[0]);
 }
 
-
 RUNTIME_FUNCTION(Runtime_ThrowStackOverflow) {
   SealHandleScope shs(isolate);
   DCHECK_LE(0, args.length());
   return isolate->StackOverflow();
 }
 
 RUNTIME_FUNCTION(Runtime_ThrowWasmError) {
   HandleScope scope(isolate);
   DCHECK_EQ(2, args.length());
   CONVERT_SMI_ARG_CHECKED(message_id, 0);
   CONVERT_SMI_ARG_CHECKED(byte_offset, 1);
   Handle<Object> error_obj = isolate->factory()->NewError(
       static_cast<MessageTemplate::Template>(message_id));
 
   // For wasm traps, the byte offset (a.k.a source position) can not be
   // determined from relocation info, since the explicit checks for traps
-  // converge in one singe block which calls this runtime function.
+  // converge in one single block which calls this runtime function.
   // We hence pass the byte offset explicitely, and patch it into the top-most
   // frame (a wasm frame) on the collected stack trace.
   // TODO(wasm): This implementation is temporary, see bug #5007:
   // https://bugs.chromium.org/p/v8/issues/detail?id=5007
   Handle<JSObject> error = Handle<JSObject>::cast(error_obj);
   Handle<Object> stack_trace_obj = JSReceiver::GetDataProperty(
       error, isolate->factory()->stack_trace_symbol());
   // Patch the stack trace (array of <receiver, function, code, position>).
   if (stack_trace_obj->IsJSArray()) {
     Handle<FrameArray> stack_elements(
@@ skipping 466 matching lines @@
 
 RUNTIME_FUNCTION(Runtime_Typeof) {
   HandleScope scope(isolate);
   DCHECK_EQ(1, args.length());
   CONVERT_ARG_HANDLE_CHECKED(Object, object, 0);
   return *Object::TypeOf(isolate, object);
 }
 
 }  // namespace internal
 }  // namespace v8