Replace wasm engine with walrus

Signed-off-by: HyukWoo Park <[email protected]>

.github/workflows/es-actions.yml

@@ -102,11 +102,6 @@ jobs:
       run: |
         sudo apt-get update
         sudo apt-get install -y ninja-build gcc-multilib g++-multilib libicu-dev
-    - name: Patch WABT
-      working-directory: ./third_party/wasm/wabt
-      run: |
-        cp ../../../tools/test/wasm-js/wabt_patch .
-        patch -p0 < wabt_patch
     - name: Build x86
       env:
         BUILD_OPTIONS: -DCMAKE_SYSTEM_NAME=Linux -DCMAKE_SYSTEM_PROCESSOR=x86 -DESCARGOT_MODE=debug -DESCARGOT_WASM=ON -DESCARGOT_TEMPORAL=ON -DESCARGOT_TCO=ON -DESCARGOT_TEST=ON -DESCARGOT_OUTPUT=shell -GNinja
@@ -540,11 +535,6 @@ jobs:
       run: |
         sudo apt-get update
         sudo apt-get install -y ninja-build gcc-multilib g++-multilib
-    - name: Patch WABT
-      working-directory: ./third_party/wasm/wabt
-      run: |
-        cp ../../../tools/test/wasm-js/wabt_patch .
-        patch -p0 < wabt_patch
     - name: Build x86
       env:
         BUILD_OPTIONS: -DCMAKE_SYSTEM_NAME=Linux -DCMAKE_SYSTEM_PROCESSOR=x86 -DESCARGOT_MODE=debug -DESCARGOT_WASM=ON -DESCARGOT_TEMPORAL=ON -DESCARGOT_TCO=ON -DESCARGOT_TEST=ON -DESCARGOT_OUTPUT=shell -GNinja

.gitignore

@@ -38,4 +38,3 @@ cmake_install.cmake
 #etc
 .vscode
 EscargotInfo.h
-third_party/wasm/config.h

.gitmodules

@@ -22,7 +22,7 @@
 	path = third_party/googletest
 	url = https://github.com/google/googletest.git
     ignore = untracked
-[submodule "third_party/wasm/wabt"]
-	path = third_party/wasm/wabt
-	url = https://github.com/WebAssembly/wabt
-    ignore = untracked
+[submodule "third_party/walrus"]
+	path = third_party/walrus
+	url = https://github.com/Samsung/walrus.git
+	ignore = untracked

build/escargot.cmake

@@ -135,20 +135,24 @@ IF (ESCARGOT_LIBICU_SUPPORT_WITH_DLOPEN)
     SET (ESCARGOT_LIBRARIES ${ESCARGOT_LIBRARIES} runtime-icu-binder-static)
 ENDIF()
 
-# WebAssembly (wabt)
+# WebAssembly (walrus)
 IF (ESCARGOT_WASM)
-    SET (WASM_CXX_FLAGS
+    SET (WALRUS_CXXFLAGS
         ${ESCARGOT_THIRDPARTY_CFLAGS} # we can share flags with gcutil
-        )
+        -g3)
     SET (WASM_ARCH ${ESCARGOT_ARCH})
+    SET (WALRUS_HOST ${ESCARGOT_HOST})
+    SET (WALRUS_ARCH ${ESCARGOT_ARCH})
+    SET (WALRUS_MODE ${ESCARGOT_MODE})
+    SET (WALRUS_OUTPUT "shared_lib")
 
     IF (${ESCARGOT_MODE} STREQUAL "release")
-         SET (WASM_CXX_FLAGS ${WASM_CXX_FLAGS} ${ESCARGOT_CXXFLAGS_RELEASE})
+         SET (WALRUS_CXXFLAGS ${WALRUS_CXXFLAGS} ${ESCARGOT_CXXFLAGS_RELEASE})
     ENDIF()
 
-    ADD_SUBDIRECTORY (third_party/wasm)
+    ADD_SUBDIRECTORY (third_party/walrus)
 
-    SET (ESCARGOT_LIBRARIES ${ESCARGOT_LIBRARIES} wasm)
+    SET (ESCARGOT_LIBRARIES ${ESCARGOT_LIBRARIES} walrus)
 ENDIF()
 
 # BUILD

src/api/EscargotPublic.cpp

@@ -4578,11 +4578,6 @@ ObjectRef* WASMOperationsRef::instantiatePromiseOfModuleWithImportObject(Executi
 {
     return toRef(WASMOperations::instantiatePromiseOfModuleWithImportObject(*toImpl(state), toImpl(promiseOfModule), toImpl(importObj)));
 }
-
-void WASMOperationsRef::collectHeap()
-{
-    WASMOperations::collectHeap();
-}
 #else
 ValueRef* WASMOperationsRef::copyStableBufferBytes(ExecutionStateRef* state, ValueRef* source)
 {
@@ -4604,12 +4599,6 @@ ObjectRef* WASMOperationsRef::instantiatePromiseOfModuleWithImportObject(Executi
     RELEASE_ASSERT_NOT_REACHED();
     return nullptr;
 }
-
-void WASMOperationsRef::collectHeap()
-{
-    ESCARGOT_LOG_ERROR("If you want to use this function, you should enable WASM");
-    RELEASE_ASSERT_NOT_REACHED();
-}
 #endif
 
 } // namespace Escargot

src/api/EscargotPublic.h

@@ -2197,7 +2197,6 @@ class ESCARGOT_EXPORT WASMOperationsRef {
     static ValueRef* copyStableBufferBytes(ExecutionStateRef* state, ValueRef* source);
     static ObjectRef* asyncCompileModule(ExecutionStateRef* state, ValueRef* source);
     static ObjectRef* instantiatePromiseOfModuleWithImportObject(ExecutionStateRef* state, PromiseObjectRef* promiseOfModule, ValueRef* importObj);
-    static void collectHeap();
 };
 
 } // namespace Escargot

src/runtime/ThreadLocal.cpp

@@ -207,13 +207,4 @@ void ThreadLocal::finalize()
     inited = false;
 }
 
-#if defined(ENABLE_WASM)
-void ThreadLocal::wasmGC(uint64_t lastCheckTime)
-{
-    ASSERT(inited && !!g_wasmContext.store);
-    wasm_store_gc(g_wasmContext.store);
-    g_wasmContext.lastGCCheckTime = lastCheckTime;
-}
-#endif
-
 } // namespace Escargot

src/runtime/ThreadLocal.h

@@ -123,19 +123,11 @@ class ThreadLocal {
     }
 
 #if defined(ENABLE_WASM)
-    static void wasmGC(uint64_t lastCheckTime);
-
     static wasm_store_t* wasmStore()
     {
         ASSERT(inited && !!g_wasmContext.store);
         return g_wasmContext.store;
     }
-
-    static uint64_t wasmLastGCCheckTime()
-    {
-        ASSERT(inited && !!g_wasmContext.store);
-        return g_wasmContext.lastGCCheckTime;
-    }
 #endif
 
     static GCEventListenerSet& gcEventListenerSet()

src/runtime/VMInstance.cpp

@@ -56,12 +56,6 @@ NT_TIB* getTIB()
 
 namespace Escargot {
 
-#if defined(ENABLE_WASM)
-#ifndef ESCARGOT_WASM_GC_CHECK_INTERVAL
-#define ESCARGOT_WASM_GC_CHECK_INTERVAL 10000
-#endif
-#endif
-
 Value VMInstance::functionPrototypeNativeGetter(ExecutionState& state, Object* self, const Value& receiver, const EncodedValue& privateDataFromObjectPrivateArea)
 {
     ASSERT(self->isFunctionObject());
@@ -245,11 +239,6 @@ void vmReclaimEndCallback(void* data)
         self->m_lastCompressibleStringsTestTime = currentTick;
     }
 #endif
-#if defined(ENABLE_WASM)
-    if (currentTick - ThreadLocal::wasmLastGCCheckTime() > ESCARGOT_WASM_GC_CHECK_INTERVAL) {
-        ThreadLocal::wasmGC(currentTick);
-    }
-#endif
 #endif
 
     auto& currentCodeSizeTotal = self->compiledByteCodeSize();

src/wasm/BuiltinWASM.cpp

@@ -347,7 +347,7 @@ static Value builtinWASMInstanceConstructor(ExecutionState& state, Value thisVal
 
     // Instantiate the core of a WebAssembly module module with imports, and let instance be the result.
     own wasm_trap_t* trap = nullptr;
-    own wasm_instance_t* instance = wasm_instance_new(ThreadLocal::wasmStore(), module, imports.data, &trap);
+    own wasm_instance_t* instance = wasm_instance_new(ThreadLocal::wasmStore(), module, &imports, &trap);
     wasm_extern_vec_delete(&imports);
 
     if (!instance) {

src/wasm/ExportedFunctionObject.cpp

@@ -94,7 +94,7 @@ static Value callExportedFunction(ExecutionState& state, Value thisValue, size_t
     wasm_functype_delete(functype);
 
     // Let (store, ret) be the result of func_invoke(store, funcaddr, args).
-    own wasm_trap_t* trap = wasm_func_call(funcaddr, args.data, ret.data);
+    own wasm_trap_t* trap = wasm_func_call(funcaddr, &args, &ret);
 
     // If ret is error, throw an exception. This exception should be a WebAssembly RuntimeError exception, unless otherwise indicated by the WebAssembly error mapping.
     if (trap) {

src/wasm/WASMOperations.cpp

@@ -40,7 +40,7 @@
 
 namespace Escargot {
 
-static own wasm_trap_t* callbackHostFunction(void* env, const wasm_val_t args[], wasm_val_t results[])
+static own wasm_trap_t* callbackHostFunction(void* env, const wasm_val_vec_t* args, wasm_val_vec_t* results)
 {
     WASMHostFunctionEnvironment* funcEnv = (WASMHostFunctionEnvironment*)env;
 
@@ -63,11 +63,37 @@ static own wasm_trap_t* callbackHostFunction(void* env, const wasm_val_t args[],
     // For each arg of arguments,
     for (size_t i = 0; i < argSize; i++) {
         // Append ! ToJSValue(arg) to jsArguments.
-        jsArguments[i] = WASMValueConverter::wasmToJSValue(state, args[i]);
+        jsArguments[i] = WASMValueConverter::wasmToJSValue(state, args->data[i]);
     }
 
     // Let ret be ? Call(func, undefined, jsArguments).
-    Value ret = Object::call(state, func, Value(), argSize, jsArguments);
+    SandBox sb(funcEnv->realm);
+
+    struct CallBackData {
+        Object* func;
+        size_t argSize;
+        Value* arguments;
+    } callBackData;
+    callBackData.func = func;
+    callBackData.argSize = argSize;
+    callBackData.arguments = jsArguments;
+
+    auto result = sb.run([](ExecutionState& state, void* data) -> Value {
+        CallBackData* callBackData = (CallBackData*)data;
+        return Object::call(state, callBackData->func, Value(), callBackData->argSize, callBackData->arguments);
+    },
+                         &callBackData);
+
+    // Assert: result.[[Type]] is throw or normal.
+    // If result.[[Type]] is throw, then trigger a WebAssembly trap, and propagate result.[[Value]] to the enclosing JavaScript.
+    // Otherwise, return result.[[Value]].
+    if (UNLIKELY(!result.error.isEmpty())) {
+        std::string errMessage = result.error.toStringWithoutException(state)->toNonGCUTF8StringData();
+        // throw a WASM exception
+        wasm_trap_trigger(errMessage.data(), errMessage.length());
+        ASSERT_NOT_REACHED();
+        return nullptr;
+    }
 
     // Let resultsSize be results?s size.
     size_t resultsSize = res->size;
@@ -76,9 +102,10 @@ static own wasm_trap_t* callbackHostFunction(void* env, const wasm_val_t args[],
         return nullptr;
     }
 
+    Value ret = result.result;
     if (resultsSize == 1) {
         // Otherwise, if resultsSize is 1, return << ToWebAssemblyValue(ret, results[0]) >>
-        results[0] = WASMValueConverter::wasmToWebAssemblyValue(state, ret, wasm_valtype_kind(res->data[0]));
+        results->data[0] = WASMValueConverter::wasmToWebAssemblyValue(state, ret, wasm_valtype_kind(res->data[0]));
     } else {
         // Otherwise,
         // Let method be ? GetMethod(ret, @@iterator).
@@ -98,15 +125,10 @@ static own wasm_trap_t* callbackHostFunction(void* env, const wasm_val_t args[],
         // For each value and resultType in values and results, paired linearly,
         // Append ToWebAssemblyValue(value, resultType) to wasmValues.
         for (size_t i = 0; i < resultsSize; i++) {
-            results[i] = WASMValueConverter::wasmToWebAssemblyValue(state, values[i], wasm_valtype_kind(res->data[i]));
+            results->data[i] = WASMValueConverter::wasmToWebAssemblyValue(state, values[i], wasm_valtype_kind(res->data[i]));
         }
     }
 
-    // TODO
-    // Assert: result.[[Type]] is throw or normal.
-    // If result.[[Type]] is throw, then trigger a WebAssembly trap, and propagate result.[[Value]] to the enclosing JavaScript.
-    // Otherwise, return result.[[Value]].
-
     return nullptr;
 }
 
@@ -146,7 +168,7 @@ static Value wasmInstantiateModule(ExecutionState& state, Value thisValue, size_
 
     // Instantiate the core of a WebAssembly module module with imports, and let instance be the result.
     own wasm_trap_t* trap = nullptr;
-    own wasm_instance_t* instance = wasm_instance_new(ThreadLocal::wasmStore(), module, imports.data, &trap);
+    own wasm_instance_t* instance = wasm_instance_new(ThreadLocal::wasmStore(), module, &imports, &trap);
     wasm_extern_vec_delete(&imports);
 
     if (!instance) {
@@ -526,7 +548,7 @@ Value WASMOperations::instantiateCoreModule(ExecutionState& state, Value thisVal
 
     // Instantiate the core of a WebAssembly module module with imports, and let instance be the result.
     own wasm_trap_t* trap = nullptr;
-    own wasm_instance_t* instance = wasm_instance_new(ThreadLocal::wasmStore(), module, imports.data, &trap);
+    own wasm_instance_t* instance = wasm_instance_new(ThreadLocal::wasmStore(), module, &imports, &trap);
     wasm_extern_vec_delete(&imports);
 
     if (!instance) {
@@ -558,12 +580,6 @@ Object* WASMOperations::instantiatePromiseOfModuleWithImportObject(ExecutionStat
     return promiseOfModule->then(state, moduleInstantiator);
 }
 
-void WASMOperations::collectHeap()
-{
-    // collect (GC) WASM Objects allocated inside WASM heap
-    wasm_store_gc(ThreadLocal::wasmStore());
-}
-
 } // namespace Escargot
 
 #endif // ENABLE_WASM

src/wasm/WASMOperations.h

@@ -38,8 +38,6 @@ class WASMOperations {
     static void readImportsOfModule(ExecutionState& state, wasm_module_t* module, const Value& importObj, wasm_extern_vec_t* imports);
     static Value instantiateCoreModule(ExecutionState& state, Value thisValue, size_t argc, Value* argv, Optional<Object*> newTarget);
     static Object* instantiatePromiseOfModuleWithImportObject(ExecutionState& state, PromiseObject* promiseOfModule, Value importObj);
-
-    static void collectHeap();
 };
 
 } // namespace Escargot

src/wasm/WASMValueConverter.cpp

@@ -28,31 +28,6 @@
 
 namespace Escargot {
 
-#define WASM_I32_VAL(result, i) \
-    result.kind = WASM_I32;     \
-    result.of.i32 = i;
-
-#define WASM_I64_VAL(result, i) \
-    result.kind = WASM_I64;     \
-    result.of.i64 = i
-
-#define WASM_F32_VAL(result, z) \
-    result.kind = WASM_F32;     \
-    result.of.f32 = z;
-
-#define WASM_F64_VAL(result, z) \
-    result.kind = WASM_F64;     \
-    result.of.f64 = z
-
-#define WASM_REF_VAL(result, r) \
-    result.kind = WASM_ANYREF;  \
-    result.of.ref = r
-
-#define WASM_INIT_VAL(result)  \
-    wasm_val_t result{};       \
-    result.kind = WASM_ANYREF; \
-    result.of.ref = NULL;
-
 Value WASMValueConverter::wasmToJSValue(ExecutionState& state, const wasm_val_t& value)
 {
     Value result;
@@ -84,27 +59,27 @@ Value WASMValueConverter::wasmToJSValue(ExecutionState& state, const wasm_val_t&
 
 wasm_val_t WASMValueConverter::wasmToWebAssemblyValue(ExecutionState& state, const Value& value, wasm_valkind_t type)
 {
-    WASM_INIT_VAL(result);
+    wasm_val_t result = WASM_INIT_VAL;
     switch (type) {
     case WASM_I32: {
         int32_t val = value.toInt32(state);
-        WASM_I32_VAL(result, val);
+        result = WASM_I32_VAL(val);
         break;
     }
     case WASM_F32: {
         // FIXME Let f32 be ? ToNumber(v) rounded to the nearest representable value using IEEE 754-2019 round to nearest, ties to even mode.
         float32_t val = value.toNumber(state);
-        WASM_F32_VAL(result, val);
+        result = WASM_F32_VAL(val);
         break;
     }
     case WASM_F64: {
         float64_t val = value.toNumber(state);
-        WASM_F64_VAL(result, val);
+        result = WASM_F64_VAL(val);
         break;
     }
     case WASM_I64: {
         int64_t val = value.toBigInt(state)->toInt64();
-        WASM_I64_VAL(result, val);
+        result = WASM_I64_VAL(val);
         break;
     }
     default: {
@@ -118,22 +93,22 @@ wasm_val_t WASMValueConverter::wasmToWebAssemblyValue(ExecutionState& state, con
 
 wasm_val_t WASMValueConverter::wasmDefaultValue(wasm_valkind_t type)
 {
-    WASM_INIT_VAL(result);
+    wasm_val_t result = WASM_INIT_VAL;
     switch (type) {
     case WASM_I32: {
-        WASM_I32_VAL(result, 0);
+        result = WASM_I32_VAL(0);
         break;
     }
     case WASM_I64: {
-        WASM_I64_VAL(result, 0);
+        result = WASM_I64_VAL(0);
         break;
     }
     case WASM_F32: {
-        WASM_F32_VAL(result, 0);
+        result = WASM_F32_VAL(0);
         break;
     }
     case WASM_F64: {
-        WASM_F64_VAL(result, 0);
+        result = WASM_F64_VAL(0);
         break;
     }
     default: {