WIP: wasm oob trap handling experiments

src/wasm/wasm-module.h

 // Copyright 2015 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.
 
 #ifndef V8_WASM_MODULE_H_
 #define V8_WASM_MODULE_H_
 
 #include <memory>
 
 #include "src/api.h"
@@ skipping 12 matching lines @@
 }
 
 namespace wasm {
 const size_t kMaxModuleSize = 1024 * 1024 * 1024;
 const size_t kMaxFunctionSize = 128 * 1024;
 const size_t kMaxStringSize = 256;
 const uint32_t kWasmMagic = 0x6d736100;
 const uint32_t kWasmVersion = 0x0b;
 const uint8_t kWasmFunctionTypeForm = 0x40;
 
+struct TrapHandlerData {
+  Code* code;
+  TrapHandlerData* next;
+};
+
+extern TrapHandlerData* gTrapHandlers;
+
 // WebAssembly sections are named as strings in the binary format, but
 // internally V8 uses an enum to handle them.
 //
 // Entries have the form F(enumerator, string).
 #define FOR_EACH_WASM_SECTION_TYPE(F)  \
   F(Signatures, 1, "type")             \
   F(ImportTable, 2, "import")          \
   F(FunctionSignatures, 3, "function") \
   F(FunctionTable, 4, "table")         \
   F(Memory, 5, "memory")               \
@@ skipping 374 matching lines @@
 
 int32_t CallFunction(Isolate* isolate, Handle<JSObject> instance,
                      ErrorThrower* thrower, const char* name, int argc,
                      Handle<Object> argv[], bool asm_js = false);
 }  // namespace testing
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_WASM_MODULE_H_