v8-bytecode

bytecode.js

const fs = require('fs')
const w = fs.readFileSync('bytecode.txt', 'utf-8')
const p = w.split('\n').map(p => p.split(',').map(p => p.trim()))
//const shell = fs.readFileSync('nwjs-sdk-v0.30.5-linux-x64/1.out')
const shell = fs.readFileSync('nwjs/linux64/kernel.bin')


const fuck = (start) => {
	const areas = []

	let index = 0
	while (true) {
		let w = shell.indexOf(Buffer.from([0x00, 0x40, 0x02]), index + 1)
		index = w
		let p = shell.indexOf(Buffer.from([0xa2, 0x00]), index)
		areas.push(shell.slice(w + 6, p + 1))
		if (w <= 0) break
	}

	return areas.map(area => {
		let status = 0
		let currentCode = []
		let data = []
		let isInRegList = 0
		let listData = []
		let j = 0
		let realLength = 0
		let index
		const ret = []
		const reset = () => {
			status = 0
			ret.push(data)
			data = []
			isInRegList = 0
			realLength = 0
		}


		for (let i = 0; i < area.length; i++) {
			let l = area[i]
			if (status === 0) {
				console.log(p[l])
				currentCode = p[l]
				data.push(start + i)
				data.push(currentCode[0])
				status = 1
				j = 0
				realLength = currentCode.length
				if (currentCode.length === 2) {
					reset()
				}
				if (currentCode[0] === 'CallRuntime') {
					j -= 1
				}
			} else if (status === 1) {
				j++
				if (currentCode[j + 1] === 'OperandType::kRegList') {
					// do fucking nothing
				} else if (currentCode[j] === 'OperandType::kRegList') {
					data.push("list(r" + (0xfb - area[i - 1]) + " to " + l + ")")
					data.push("")
				} else if (currentCode[j + 1] === 'OperandType::kRuntimeId') {
					data.push("runtime=" + l)
					j++
					j++
					data.push("list(r" + (0xfb - area[i+1]) + " to " + area[i+2] + ")")
					i++
					i++
					reset()
					continue
				} else {
					if (l <= 0xfb && l >= 0xe0) {
						data.push("r" + (0xfb - l))
					} else { 
						data.push(l)
					}
					if (data.length >= realLength) {
						reset()
					}
				}	
				
			} 
		}

		return ret
	})

}

const r = fuck(0)
console.dir(r)
//console.log(JSON.stringify(r))

bytecode.txt

Wide, AccumulatorUse::kNone
ExtraWide, AccumulatorUse::kNone
DebugBreakWide, AccumulatorUse::kReadWrite
DebugBreakExtraWide, AccumulatorUse::kReadWrite
DebugBreak0, AccumulatorUse::kReadWrite
DebugBreak1, AccumulatorUse::kReadWrite, OperandType::kReg
DebugBreak2, AccumulatorUse::kReadWrite, OperandType::kReg,     OperandType::kReg
DebugBreak3, AccumulatorUse::kReadWrite, OperandType::kReg,     OperandType::kReg, OperandType::kReg
DebugBreak4, AccumulatorUse::kReadWrite, OperandType::kReg,     OperandType::kReg, OperandType::kReg, OperandType::kReg
DebugBreak5, AccumulatorUse::kReadWrite, OperandType::kRuntimeId,     OperandType::kReg, OperandType::kReg
DebugBreak6, AccumulatorUse::kReadWrite, OperandType::kRuntimeId,     OperandType::kReg, OperandType::kReg, OperandType::kReg
LdaZero, AccumulatorUse::kWrite
LdaSmi, AccumulatorUse::kWrite, OperandType::kImm
LdaUndefined, AccumulatorUse::kWrite
LdaNull, AccumulatorUse::kWrite
LdaTheHole, AccumulatorUse::kWrite
LdaTrue, AccumulatorUse::kWrite
LdaFalse, AccumulatorUse::kWrite
LdaConstant, AccumulatorUse::kWrite, OperandType::kIdx
LdaGlobal, AccumulatorUse::kWrite, OperandType::kIdx, OperandType::kIdx
LdaGlobalInsideTypeof, AccumulatorUse::kWrite, OperandType::kIdx,     OperandType::kIdx
StaGlobal, AccumulatorUse::kRead, OperandType::kIdx, OperandType::kIdx
PushContext, AccumulatorUse::kRead, OperandType::kRegOut
PopContext, AccumulatorUse::kNone, OperandType::kReg
LdaContextSlot, AccumulatorUse::kWrite, OperandType::kReg,     OperandType::kIdx, OperandType::kUImm
LdaImmutableContextSlot, AccumulatorUse::kWrite, OperandType::kReg,     OperandType::kIdx, OperandType::kUImm
LdaCurrentContextSlot, AccumulatorUse::kWrite, OperandType::kIdx
LdaImmutableCurrentContextSlot, AccumulatorUse::kWrite, OperandType::kIdx
StaContextSlot, AccumulatorUse::kRead, OperandType::kReg,     OperandType::kIdx, OperandType::kUImm
StaCurrentContextSlot, AccumulatorUse::kRead, OperandType::kIdx
LdaLookupSlot, AccumulatorUse::kWrite, OperandType::kIdx
LdaLookupContextSlot, AccumulatorUse::kWrite, OperandType::kIdx,     OperandType::kIdx, OperandType::kUImm
LdaLookupGlobalSlot, AccumulatorUse::kWrite, OperandType::kIdx,     OperandType::kIdx, OperandType::kUImm
LdaLookupSlotInsideTypeof, AccumulatorUse::kWrite, OperandType::kIdx
LdaLookupContextSlotInsideTypeof, AccumulatorUse::kWrite,     OperandType::kIdx, OperandType::kIdx, OperandType::kUImm
LdaLookupGlobalSlotInsideTypeof, AccumulatorUse::kWrite,     OperandType::kIdx, OperandType::kIdx, OperandType::kUImm
StaLookupSlot, AccumulatorUse::kReadWrite, OperandType::kIdx,     OperandType::kFlag8
Ldar, AccumulatorUse::kWrite, OperandType::kReg
Star, AccumulatorUse::kRead, OperandType::kRegOut
Mov, AccumulatorUse::kNone, OperandType::kReg, OperandType::kRegOut
LdaNamedProperty, AccumulatorUse::kWrite, OperandType::kReg,     OperandType::kIdx, OperandType::kIdx
LdaKeyedProperty, AccumulatorUse::kReadWrite, OperandType::kReg,     OperandType::kIdx
LdaModuleVariable, AccumulatorUse::kWrite, OperandType::kImm,     OperandType::kUImm
StaModuleVariable, AccumulatorUse::kRead, OperandType::kImm,     OperandType::kUImm
StaNamedProperty, AccumulatorUse::kReadWrite, OperandType::kReg,     OperandType::kIdx, OperandType::kIdx
StaNamedOwnProperty, AccumulatorUse::kReadWrite, OperandType::kReg,     OperandType::kIdx, OperandType::kIdx
StaKeyedProperty, AccumulatorUse::kReadWrite, OperandType::kReg,     OperandType::kReg, OperandType::kIdx
StaDataPropertyInLiteral, AccumulatorUse::kRead, OperandType::kReg,     OperandType::kReg, OperandType::kFlag8, OperandType::kIdx
CollectTypeProfile, AccumulatorUse::kRead, OperandType::kImm
Add, AccumulatorUse::kReadWrite, OperandType::kReg, OperandType::kIdx
Sub, AccumulatorUse::kReadWrite, OperandType::kReg, OperandType::kIdx
Mul, AccumulatorUse::kReadWrite, OperandType::kReg, OperandType::kIdx
Div, AccumulatorUse::kReadWrite, OperandType::kReg, OperandType::kIdx
Mod, AccumulatorUse::kReadWrite, OperandType::kReg, OperandType::kIdx
Exp, AccumulatorUse::kReadWrite, OperandType::kReg, OperandType::kIdx
BitwiseOr, AccumulatorUse::kReadWrite, OperandType::kReg,     OperandType::kIdx
BitwiseXor, AccumulatorUse::kReadWrite, OperandType::kReg,     OperandType::kIdx
BitwiseAnd, AccumulatorUse::kReadWrite, OperandType::kReg,     OperandType::kIdx
ShiftLeft, AccumulatorUse::kReadWrite, OperandType::kReg,     OperandType::kIdx
ShiftRight, AccumulatorUse::kReadWrite, OperandType::kReg,     OperandType::kIdx
ShiftRightLogical, AccumulatorUse::kReadWrite, OperandType::kReg,     OperandType::kIdx
AddSmi, AccumulatorUse::kReadWrite, OperandType::kImm, OperandType::kIdx
SubSmi, AccumulatorUse::kReadWrite, OperandType::kImm, OperandType::kIdx
MulSmi, AccumulatorUse::kReadWrite, OperandType::kImm, OperandType::kIdx
DivSmi, AccumulatorUse::kReadWrite, OperandType::kImm, OperandType::kIdx
ModSmi, AccumulatorUse::kReadWrite, OperandType::kImm, OperandType::kIdx
ExpSmi, AccumulatorUse::kReadWrite, OperandType::kImm, OperandType::kIdx
BitwiseOrSmi, AccumulatorUse::kReadWrite, OperandType::kImm,     OperandType::kIdx
BitwiseXorSmi, AccumulatorUse::kReadWrite, OperandType::kImm,     OperandType::kIdx
BitwiseAndSmi, AccumulatorUse::kReadWrite, OperandType::kImm,     OperandType::kIdx
ShiftLeftSmi, AccumulatorUse::kReadWrite, OperandType::kImm,     OperandType::kIdx
ShiftRightSmi, AccumulatorUse::kReadWrite, OperandType::kImm,     OperandType::kIdx
ShiftRightLogicalSmi, AccumulatorUse::kReadWrite, OperandType::kImm,     OperandType::kIdx
Inc, AccumulatorUse::kReadWrite, OperandType::kIdx
Dec, AccumulatorUse::kReadWrite, OperandType::kIdx
Negate, AccumulatorUse::kReadWrite, OperandType::kIdx
BitwiseNot, AccumulatorUse::kReadWrite, OperandType::kIdx
ToBooleanLogicalNot, AccumulatorUse::kReadWrite
LogicalNot, AccumulatorUse::kReadWrite
TypeOf, AccumulatorUse::kReadWrite
DeletePropertyStrict, AccumulatorUse::kReadWrite, OperandType::kReg
DeletePropertySloppy, AccumulatorUse::kReadWrite, OperandType::kReg
GetSuperConstructor, AccumulatorUse::kRead, OperandType::kRegOut
CallAnyReceiver, AccumulatorUse::kWrite, OperandType::kReg,     OperandType::kRegList, OperandType::kRegCount, OperandType::kIdx
CallProperty, AccumulatorUse::kWrite, OperandType::kReg,     OperandType::kRegList, OperandType::kRegCount, OperandType::kIdx
CallProperty0, AccumulatorUse::kWrite, OperandType::kReg,     OperandType::kReg, OperandType::kIdx
CallProperty1, AccumulatorUse::kWrite, OperandType::kReg,     OperandType::kReg, OperandType::kReg, OperandType::kIdx
CallProperty2, AccumulatorUse::kWrite, OperandType::kReg,     OperandType::kReg, OperandType::kReg, OperandType::kReg,     OperandType::kIdx
CallUndefinedReceiver, AccumulatorUse::kWrite, OperandType::kReg,     OperandType::kRegList, OperandType::kRegCount, OperandType::kIdx
CallUndefinedReceiver0, AccumulatorUse::kWrite, OperandType::kReg,     OperandType::kIdx
CallUndefinedReceiver1, AccumulatorUse::kWrite, OperandType::kReg,     OperandType::kReg, OperandType::kIdx
CallUndefinedReceiver2, AccumulatorUse::kWrite, OperandType::kReg,     OperandType::kReg, OperandType::kReg, OperandType::kIdx
CallWithSpread, AccumulatorUse::kWrite, OperandType::kReg,     OperandType::kRegList, OperandType::kRegCount, OperandType::kIdx
CallRuntime, AccumulatorUse::kWrite, OperandType::kRuntimeId,     OperandType::kRegList, OperandType::kRegCount
CallRuntimeForPair, AccumulatorUse::kNone, OperandType::kRuntimeId,     OperandType::kRegList, OperandType::kRegCount, OperandType::kRegOutPair
CallJSRuntime, AccumulatorUse::kWrite, OperandType::kNativeContextIndex,     OperandType::kRegList, OperandType::kRegCount
InvokeIntrinsic, AccumulatorUse::kWrite, OperandType::kIntrinsicId,     OperandType::kRegList, OperandType::kRegCount
Construct, AccumulatorUse::kReadWrite, OperandType::kReg,     OperandType::kRegList, OperandType::kRegCount, OperandType::kIdx
ConstructWithSpread, AccumulatorUse::kReadWrite, OperandType::kReg,     OperandType::kRegList, OperandType::kRegCount, OperandType::kIdx
TestEqual, AccumulatorUse::kReadWrite, OperandType::kReg,     OperandType::kIdx
TestEqualStrict, AccumulatorUse::kReadWrite, OperandType::kReg,     OperandType::kIdx
TestLessThan, AccumulatorUse::kReadWrite, OperandType::kReg,     OperandType::kIdx
TestGreaterThan, AccumulatorUse::kReadWrite, OperandType::kReg,     OperandType::kIdx
TestLessThanOrEqual, AccumulatorUse::kReadWrite, OperandType::kReg,     OperandType::kIdx
TestGreaterThanOrEqual, AccumulatorUse::kReadWrite, OperandType::kReg,     OperandType::kIdx
TestEqualStrictNoFeedback, AccumulatorUse::kReadWrite, OperandType::kReg
TestInstanceOf, AccumulatorUse::kReadWrite, OperandType::kReg,     OperandType::kIdx
TestIn, AccumulatorUse::kReadWrite, OperandType::kReg
TestUndetectable, AccumulatorUse::kReadWrite
TestNull, AccumulatorUse::kReadWrite
TestUndefined, AccumulatorUse::kReadWrite
TestTypeOf, AccumulatorUse::kReadWrite, OperandType::kFlag8
ToName, AccumulatorUse::kRead, OperandType::kRegOut
ToNumber, AccumulatorUse::kReadWrite, OperandType::kIdx
ToNumeric, AccumulatorUse::kReadWrite, OperandType::kIdx
ToObject, AccumulatorUse::kRead, OperandType::kRegOut
CreateRegExpLiteral, AccumulatorUse::kWrite, OperandType::kIdx,     OperandType::kIdx, OperandType::kFlag8
CreateArrayLiteral, AccumulatorUse::kWrite, OperandType::kIdx,     OperandType::kIdx, OperandType::kFlag8
CreateEmptyArrayLiteral, AccumulatorUse::kWrite, OperandType::kIdx
CreateObjectLiteral, AccumulatorUse::kNone, OperandType::kIdx,     OperandType::kIdx, OperandType::kFlag8, OperandType::kRegOut
CreateEmptyObjectLiteral, AccumulatorUse::kWrite
GetTemplateObject, AccumulatorUse::kWrite, OperandType::kIdx,     OperandType::kIdx
CreateClosure, AccumulatorUse::kWrite, OperandType::kIdx,     OperandType::kIdx, OperandType::kFlag8
CreateBlockContext, AccumulatorUse::kReadWrite, OperandType::kIdx
CreateCatchContext, AccumulatorUse::kReadWrite, OperandType::kReg,     OperandType::kIdx, OperandType::kIdx
CreateFunctionContext, AccumulatorUse::kWrite, OperandType::kUImm
CreateEvalContext, AccumulatorUse::kWrite, OperandType::kUImm
CreateWithContext, AccumulatorUse::kReadWrite, OperandType::kReg,     OperandType::kIdx
CreateMappedArguments, AccumulatorUse::kWrite
CreateUnmappedArguments, AccumulatorUse::kWrite
CreateRestParameter, AccumulatorUse::kWrite
JumpLoop, AccumulatorUse::kNone, OperandType::kUImm, OperandType::kImm
Jump, AccumulatorUse::kNone, OperandType::kUImm
JumpConstant, AccumulatorUse::kNone, OperandType::kIdx
JumpIfNullConstant, AccumulatorUse::kRead, OperandType::kIdx
JumpIfNotNullConstant, AccumulatorUse::kRead, OperandType::kIdx
JumpIfUndefinedConstant, AccumulatorUse::kRead, OperandType::kIdx
JumpIfNotUndefinedConstant, AccumulatorUse::kRead, OperandType::kIdx
JumpIfTrueConstant, AccumulatorUse::kRead, OperandType::kIdx
JumpIfFalseConstant, AccumulatorUse::kRead, OperandType::kIdx
JumpIfJSReceiverConstant, AccumulatorUse::kRead, OperandType::kIdx
JumpIfToBooleanTrueConstant, AccumulatorUse::kRead, OperandType::kIdx
JumpIfToBooleanFalseConstant, AccumulatorUse::kRead, OperandType::kIdx
JumpIfToBooleanTrue, AccumulatorUse::kRead, OperandType::kUImm
JumpIfToBooleanFalse, AccumulatorUse::kRead, OperandType::kUImm
JumpIfTrue, AccumulatorUse::kRead, OperandType::kUImm
JumpIfFalse, AccumulatorUse::kRead, OperandType::kUImm
JumpIfNull, AccumulatorUse::kRead, OperandType::kUImm
JumpIfNotNull, AccumulatorUse::kRead, OperandType::kUImm
JumpIfUndefined, AccumulatorUse::kRead, OperandType::kUImm
JumpIfNotUndefined, AccumulatorUse::kRead, OperandType::kUImm
JumpIfJSReceiver, AccumulatorUse::kRead, OperandType::kUImm
SwitchOnSmiNoFeedback, AccumulatorUse::kRead, OperandType::kIdx,     OperandType::kUImm, OperandType::kImm
ForInEnumerate, AccumulatorUse::kWrite, OperandType::kReg
ForInPrepare, AccumulatorUse::kRead, OperandType::kRegOutTriple,     OperandType::kIdx
ForInContinue, AccumulatorUse::kWrite, OperandType::kReg,     OperandType::kReg
ForInNext, AccumulatorUse::kWrite, OperandType::kReg, OperandType::kReg,     OperandType::kRegPair, OperandType::kIdx
ForInStep, AccumulatorUse::kWrite, OperandType::kReg
StackCheck, AccumulatorUse::kNone
SetPendingMessage, AccumulatorUse::kReadWrite
Throw, AccumulatorUse::kRead
ReThrow, AccumulatorUse::kRead
Return, AccumulatorUse::kRead
ThrowReferenceErrorIfHole, AccumulatorUse::kRead, OperandType::kIdx
ThrowSuperNotCalledIfHole, AccumulatorUse::kRead
ThrowSuperAlreadyCalledIfNotHole, AccumulatorUse::kRead
SwitchOnGeneratorState, AccumulatorUse::kNone, OperandType::kReg,     OperandType::kIdx, OperandType::kUImm
SuspendGenerator, AccumulatorUse::kRead, OperandType::kReg,     OperandType::kRegList, OperandType::kRegCount, OperandType::kUImm
ResumeGenerator, AccumulatorUse::kWrite, OperandType::kReg,     OperandType::kRegOutList, OperandType::kRegCount
Debugger, AccumulatorUse::kNone
IncBlockCounter, AccumulatorUse::kNone, OperandType::kIdx
Abort, AccumulatorUse::kNone, OperandType::kIdx
Illegal, AccumulatorUse::kNone

nwjc-load.cpp

// Copyright 2006-2008 the V8 project authors. All rights reserved.
// Copyright 2013-2017 Intel Corp. Author: Roger Wang <[email protected]>
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#if defined(__clang__)
#pragma clang diagnostic ignored "-Wundefined-inline"
#endif

#include <errno.h>
#include <signal.h>
#include <stdio.h>

#include "src/v8.h"

#include "include/libplatform/libplatform.h"
#include "src/assembler.h"
#include "src/base/platform/platform.h"
#include "src/compiler.h"
#include "src/factory.h"
#include "src/isolate-inl.h"
#include "src/flags.h"
#include "src/snapshot/natives.h"
#include "src/snapshot/code-serializer.h"
#include "src/snapshot/partial-serializer.h"
#include "src/snapshot/startup-serializer.h"
#include "src/parsing/preparse-data.h"


using namespace v8;

namespace {

} //namespace

class ArrayBufferAllocator : public v8::ArrayBuffer::Allocator {
 public:
  virtual void* Allocate(size_t length) {
    void* data = AllocateUninitialized(length);
    return data == NULL ? data : memset(data, 0, length);
  }
  virtual void* AllocateUninitialized(size_t length) { return malloc(length); }
  virtual void Free(void* data, size_t) { free(data); }
};

class SnapshotWriter {
 public:
  explicit SnapshotWriter(const char* snapshot_file)
      : fp_(GetFileDescriptorOrDie(snapshot_file))
        {}

  ~SnapshotWriter() {
    fclose(fp_);
  }

  void WriteSnapshot(void* buffer, int length) const {
    size_t written = fwrite(buffer, 1, length, fp_);
    if (written != static_cast<size_t>(length)) {
      i::PrintF("Writing snapshot file failed.. Aborting.\n");
      exit(1);
    }
  }

 private:

  FILE* GetFileDescriptorOrDie(const char* filename) {
    FILE* fp = base::OS::FOpen(filename, "wb");
    if (fp == NULL) {
      i::PrintF("Unable to open file \"%s\" for writing.\n", filename);
      exit(1);
    }
    return fp;
  }

  FILE* fp_;
};


int main(int argc, char** argv) {
  // By default, log code create information in the snapshot.
  i::FLAG_log_code = true;

  // Omit from the snapshot natives for features that can be turned off
  // at runtime.
  i::FLAG_harmony_shipping = false;

  i::FLAG_logfile_per_isolate = false;

  //i::FLAG_serialize_toplevel = true;
  i::FLAG_lazy = false;

  // Print the usage if an error occurs when parsing the command line
  // flags or if the help flag is set.
  int result = i::FlagList::SetFlagsFromCommandLine(&argc, argv, true);
  if (result > 0 || argc != 2 || i::FLAG_help) {
    ::printf("Usage: %s [flag] ... jsfile outfile\n", argv[0]);
    i::FlagList::PrintHelp();
    return !i::FLAG_help;
  }

  i::CpuFeatures::Probe(true);
  V8::InitializeICUDefaultLocation(argv[0]);
  v8::Platform* platform = v8::platform::CreateDefaultPlatform();
  v8::V8::InitializePlatform(platform);
  v8::V8::Initialize();

  v8::Isolate::CreateParams create_params;
  ArrayBufferAllocator array_buffer_allocator;
  create_params.array_buffer_allocator = &array_buffer_allocator;
  v8::Isolate* isolate = v8::Isolate::New(create_params);
  {
    v8::Isolate::Scope isolate_scope(isolate);
    v8::HandleScope handle_scope(isolate);
    v8::Handle<v8::ObjectTemplate> global = v8::ObjectTemplate::New(isolate);
    v8::Local<v8::Context> context = v8::Context::New(isolate, NULL, global);
    v8::Context::Scope scope(context);

    FILE* file = v8::base::OS::FOpen(argv[1], "rb");
    if (file == NULL) {
      fprintf(stderr, "Failed to open '%s': errno %d\n", argv[1], errno);
      exit(1);
    }

    fseek(file, 0, SEEK_END);
    long size = ftell(file);
    rewind(file);

    char* chars = new char[size + 1];
    chars[size] = '\0';
    for (long i = 0; i < size;) {
      int read = static_cast<int>(fread(&chars[i], 1, size - i, file));
      if (read < 0) {
        fprintf(stderr, "Failed to read '%s': errno %d\n", argv[1], errno);
        exit(1);
      }
      i += read;
    }
    fclose(file);
    //Local<String> source_str = String::NewFromUtf8(isolate, chars);
    //Local<String> filename = String::NewFromUtf8(isolate, argv[1]);
    TryCatch try_catch(isolate);

    //i::Isolate* iso = reinterpret_cast<i::Isolate*>(isolate);
    uint8_t *data = reinterpret_cast<uint8_t*>(chars);
    

    v8::ScriptCompiler::CachedData* cache;
    cache = new v8::ScriptCompiler::CachedData(data, (int)size, v8::ScriptCompiler::CachedData::BufferNotOwned);

    v8::Handle<v8::String> source_string = v8::String::NewFromUtf8(isolate, "");
    v8::Local<v8::UnboundScript> script;
    v8::ScriptCompiler::Source source(source_string, cache);
    script = v8::ScriptCompiler::CompileUnboundScript(
                                                      isolate, &source, v8::ScriptCompiler::kConsumeCodeCache).ToLocalChecked();
    CHECK(!cache->rejected);

  }

  V8::Dispose();
  V8::ShutdownPlatform();
  delete platform;
  return 0;
}