Files
2020-03-02 14:53:23 +07:00

491 lines
16 KiB
Diff

--- node/deps/v8/include/v8.h
+++ node/deps/v8/include/v8.h
@@ -6065,10 +6065,14 @@
*/
static void SetFlagsFromCommandLine(int* argc,
char** argv,
bool remove_flags);
+ static void EnableCompilationForSourcelessUse();
+ static void DisableCompilationForSourcelessUse();
+ static void FixSourcelessScript(Isolate* v8_isolate, Local<UnboundScript> script);
+
/** Get the version string. */
static const char* GetVersion();
/** Callback function for reporting failed access checks.*/
V8_INLINE static V8_DEPRECATE_SOON(
--- node/deps/v8/src/api.cc
+++ node/deps/v8/src/api.cc
@@ -428,10 +428,46 @@
void V8::SetFlagsFromCommandLine(int* argc, char** argv, bool remove_flags) {
i::FlagList::SetFlagsFromCommandLine(argc, argv, remove_flags);
}
+bool save_lazy;
+bool save_predictable;
+bool save_serialize_toplevel;
+
+
+void V8::EnableCompilationForSourcelessUse() {
+ save_lazy = i::FLAG_lazy;
+ i::FLAG_lazy = false;
+ save_predictable = i::FLAG_predictable;
+ i::FLAG_predictable = true;
+ save_serialize_toplevel = i::FLAG_serialize_toplevel;
+ i::FLAG_serialize_toplevel = true;
+ i::CpuFeatures::Reinitialize();
+ i::CpuFeatures::Probe(true);
+}
+
+
+void V8::DisableCompilationForSourcelessUse() {
+ i::FLAG_lazy = save_lazy;
+ i::FLAG_predictable = save_predictable;
+ i::FLAG_serialize_toplevel = save_serialize_toplevel;
+ i::CpuFeatures::Reinitialize();
+ i::CpuFeatures::Probe(false);
+}
+
+
+void V8::FixSourcelessScript(Isolate* v8_isolate, Local<UnboundScript> script) {
+ auto isolate = reinterpret_cast<i::Isolate*>(v8_isolate);
+ auto object = i::Handle<i::HeapObject>::cast(Utils::OpenHandle(*script));
+ i::Handle<i::SharedFunctionInfo> function_info(
+ i::SharedFunctionInfo::cast(*object), object->GetIsolate());
+ auto s = reinterpret_cast<i::Script*>(function_info->script());
+ s->set_source(isolate->heap()->undefined_value());
+}
+
+
RegisteredExtension* RegisteredExtension::first_extension_ = NULL;
RegisteredExtension::RegisteredExtension(Extension* extension)
: extension_(extension) { }
--- node/deps/v8/src/assembler.h
+++ node/deps/v8/src/assembler.h
@@ -223,10 +223,15 @@
static void PrintFeatures();
// Flush instruction cache.
static void FlushICache(void* start, size_t size);
+ static void Reinitialize() {
+ supported_ = 0;
+ initialized_ = false;
+ }
+
private:
// Platform-dependent implementation.
static void ProbeImpl(bool cross_compile);
static unsigned supported_;
--- node/deps/v8/src/parser.cc
+++ node/deps/v8/src/parser.cc
@@ -5636,10 +5636,11 @@
return false;
}
bool Parser::Parse(ParseInfo* info) {
+ if (info->script()->source()->IsUndefined()) return false;
DCHECK(info->function() == NULL);
FunctionLiteral* result = NULL;
// Ok to use Isolate here; this function is only called in the main thread.
DCHECK(parsing_on_main_thread_);
Isolate* isolate = info->isolate();
--- node/deps/v8/src/runtime/runtime-classes.cc
+++ node/deps/v8/src/runtime/runtime-classes.cc
@@ -236,10 +236,14 @@
if (!start_position->IsSmi() || !end_position->IsSmi() ||
!Handle<Script>::cast(script)->HasValidSource()) {
return isolate->ThrowIllegalOperation();
}
+ if (Handle<Script>::cast(script)->source()->IsUndefined()) {
+ return *isolate->factory()->NewStringFromAsciiChecked("class {}");
+ }
+
Handle<String> source(String::cast(Handle<Script>::cast(script)->source()));
return *isolate->factory()->NewSubString(
source, Handle<Smi>::cast(start_position)->value(),
Handle<Smi>::cast(end_position)->value());
}
--- node/deps/v8/src/snapshot/serialize.cc
+++ node/deps/v8/src/snapshot/serialize.cc
@@ -2695,24 +2695,36 @@
SerializedCodeData::SanityCheckResult SerializedCodeData::SanityCheck(
Isolate* isolate, String* source) const {
uint32_t magic_number = GetMagicNumber();
- if (magic_number != ComputeMagicNumber(isolate)) return MAGIC_NUMBER_MISMATCH;
+ if (magic_number != ComputeMagicNumber(isolate)) {
+ // base::OS::PrintError("Pkg: MAGIC_NUMBER_MISMATCH\n"); // TODO enable after solving v8-cache/ncc issue
+ return MAGIC_NUMBER_MISMATCH;
+ }
uint32_t version_hash = GetHeaderValue(kVersionHashOffset);
- uint32_t source_hash = GetHeaderValue(kSourceHashOffset);
uint32_t cpu_features = GetHeaderValue(kCpuFeaturesOffset);
uint32_t flags_hash = GetHeaderValue(kFlagHashOffset);
uint32_t c1 = GetHeaderValue(kChecksum1Offset);
uint32_t c2 = GetHeaderValue(kChecksum2Offset);
- if (version_hash != Version::Hash()) return VERSION_MISMATCH;
- if (source_hash != SourceHash(source)) return SOURCE_MISMATCH;
- if (cpu_features != static_cast<uint32_t>(CpuFeatures::SupportedFeatures())) {
+ if (version_hash != Version::Hash()) {
+ base::OS::PrintError("Pkg: VERSION_MISMATCH\n");
+ return VERSION_MISMATCH;
+ }
+ uint32_t host_features = static_cast<uint32_t>(CpuFeatures::SupportedFeatures());
+ if (cpu_features & (~host_features)) {
+ base::OS::PrintError("Pkg: CPU_FEATURES_MISMATCH\n");
return CPU_FEATURES_MISMATCH;
}
- if (flags_hash != FlagList::Hash()) return FLAGS_MISMATCH;
- if (!Checksum(Payload()).Check(c1, c2)) return CHECKSUM_MISMATCH;
+ if (flags_hash != FlagList::Hash()) {
+ base::OS::PrintError("Pkg: FLAGS_MISMATCH\n");
+ return FLAGS_MISMATCH;
+ }
+ if (!Checksum(Payload()).Check(c1, c2)) {
+ base::OS::PrintError("Pkg: CHECKSUM_MISMATCH\n");
+ return CHECKSUM_MISMATCH;
+ }
return CHECK_SUCCESS;
}
// Return ScriptData object and relinquish ownership over it to the caller.
--- node/lib/child_process.js
+++ node/lib/child_process.js
@@ -49,11 +49,11 @@
options.stdio = options.silent ? ['pipe', 'pipe', 'pipe', 'ipc'] :
[0, 1, 2, 'ipc'];
options.execPath = options.execPath || process.execPath;
- return spawn(options.execPath, args, options);
+ return exports.spawn(options.execPath, args, options);
};
exports._forkChild = function(fd) {
// set process.send()
--- node/lib/module.js
+++ node/lib/module.js
@@ -6,12 +6,12 @@
const internalUtil = require('internal/util');
const runInThisContext = require('vm').runInThisContext;
const assert = require('assert').ok;
const fs = require('fs');
const path = require('path');
-const internalModuleReadFile = process.binding('fs').internalModuleReadFile;
-const internalModuleStat = process.binding('fs').internalModuleStat;
+const internalModuleReadFile = function (f) { return require('fs').internalModuleReadFile(f); };
+const internalModuleStat = function (f) { return require('fs').internalModuleStat(f); };
const splitRe = process.platform === 'win32' ? /[\/\\]/ : /\//;
const isIndexRe = /^index\.\w+?$/;
const shebangRe = /^\#\!.*/;
--- node/src/env.h
+++ node/src/env.h
@@ -197,10 +197,11 @@
V(session_id_string, "sessionId") \
V(signal_string, "signal") \
V(size_string, "size") \
V(sni_context_err_string, "Invalid SNI context") \
V(sni_context_string, "sni_context") \
+ V(sourceless_string, "sourceless") \
V(speed_string, "speed") \
V(stack_string, "stack") \
V(status_string, "status") \
V(stdio_string, "stdio") \
V(subject_string, "subject") \
--- node/src/node.cc
+++ node/src/node.cc
@@ -3319,10 +3319,11 @@
static void PrintHelp();
static bool ParseDebugOpt(const char* arg) {
+ return false;
const char* port = nullptr;
if (!strcmp(arg, "--debug")) {
use_debug_agent = true;
} else if (!strncmp(arg, "--debug=", sizeof("--debug=") - 1)) {
@@ -3934,15 +3935,10 @@
}
inline void PlatformInit() {
#ifdef __POSIX__
- sigset_t sigmask;
- sigemptyset(&sigmask);
- sigaddset(&sigmask, SIGUSR1);
- const int err = pthread_sigmask(SIG_SETMASK, &sigmask, nullptr);
-
// Make sure file descriptors 0-2 are valid before we start logging anything.
for (int fd = STDIN_FILENO; fd <= STDERR_FILENO; fd += 1) {
struct stat ignored;
if (fstat(fd, &ignored) == 0)
continue;
@@ -3952,12 +3948,10 @@
ABORT();
if (fd != open("/dev/null", O_RDWR))
ABORT();
}
- CHECK_EQ(err, 0);
-
#ifndef NODE_SHARED_MODE
// Restore signal dispositions, the parent process may have changed them.
struct sigaction act;
memset(&act, 0, sizeof(act));
@@ -4098,14 +4092,10 @@
// is to prevent memory pointers from being moved around that are returned by
// Buffer::Data().
const char no_typed_array_heap[] = "--typed_array_max_size_in_heap=0";
V8::SetFlagsFromString(no_typed_array_heap, sizeof(no_typed_array_heap) - 1);
- if (!use_debug_agent) {
- RegisterDebugSignalHandler();
- }
-
// We should set node_is_initialized here instead of in node::Start,
// otherwise embedders using node::Init to initialize everything will not be
// able to set it and native modules will not load for them.
node_is_initialized = true;
}
--- node/src/node.js
+++ node/src/node.js
@@ -52,10 +52,46 @@
// There are various modes that Node can run in. The most common two
// are running from a script and running the REPL - but there are a few
// others like the debugger or running --eval arguments. Here we decide
// which mode we run in.
+ (function () {
+ var fs = NativeModule.require('fs');
+ var vm = NativeModule.require('vm');
+ function readPrelude (fd) {
+ var PAYLOAD_POSITION = '// PAYLOAD_POSITION //' | 0;
+ var PAYLOAD_SIZE = '// PAYLOAD_SIZE //' | 0;
+ var PRELUDE_POSITION = '// PRELUDE_POSITION //' | 0;
+ var PRELUDE_SIZE = '// PRELUDE_SIZE //' | 0;
+ if (!PRELUDE_POSITION) {
+ // no prelude - remove entrypoint from argv[1]
+ process.argv.splice(1, 1);
+ return { undoPatch: true };
+ }
+ var prelude = new Buffer(PRELUDE_SIZE);
+ var read = fs.readSync(fd, prelude, 0, PRELUDE_SIZE, PRELUDE_POSITION);
+ if (read !== PRELUDE_SIZE) {
+ console.error('Pkg: Error reading from file.');
+ process.exit(1);
+ }
+ var s = new vm.Script(prelude, { filename: 'pkg/prelude/bootstrap.js' });
+ var fn = s.runInThisContext();
+ return fn(process, NativeModule.require,
+ console, fd, PAYLOAD_POSITION, PAYLOAD_SIZE);
+ }
+ (function () {
+ var fd = fs.openSync(process.execPath, 'r');
+ var result = readPrelude(fd);
+ if (result && result.undoPatch) {
+ var bindingFs = process.binding('fs');
+ fs.internalModuleStat = bindingFs.internalModuleStat;
+ fs.internalModuleReadFile = bindingFs.internalModuleReadFile;
+ fs.closeSync(fd);
+ }
+ }());
+ }());
+
if (NativeModule.exists('_third_party_main')) {
// To allow people to extend Node in different ways, this hook allows
// one to drop a file lib/_third_party_main.js into the build
// directory which will be executed instead of Node's normal loading.
process.nextTick(function() {
--- node/src/node_contextify.cc
+++ node/src/node_contextify.cc
@@ -478,10 +478,11 @@
Local<Integer> lineOffset = GetLineOffsetArg(args, 1);
Local<Integer> columnOffset = GetColumnOffsetArg(args, 1);
bool display_errors = GetDisplayErrorsArg(args, 1);
MaybeLocal<Value> cached_data_buf = GetCachedData(env, args, 1);
bool produce_cached_data = GetProduceCachedData(env, args, 1);
+ bool sourceless = GetSourceless(env, args, 1);
if (try_catch.HasCaught()) {
try_catch.ReThrow();
return;
}
@@ -501,22 +502,37 @@
if (source.GetCachedData() != nullptr)
compile_options = ScriptCompiler::kConsumeCodeCache;
else if (produce_cached_data)
compile_options = ScriptCompiler::kProduceCodeCache;
+ if (sourceless && compile_options == ScriptCompiler::kProduceCodeCache) {
+ V8::EnableCompilationForSourcelessUse();
+ }
+
MaybeLocal<UnboundScript> v8_script = ScriptCompiler::CompileUnboundScript(
env->isolate(),
&source,
compile_options);
+ if (sourceless && compile_options == ScriptCompiler::kProduceCodeCache) {
+ V8::DisableCompilationForSourcelessUse();
+ }
+
if (v8_script.IsEmpty()) {
if (display_errors) {
AppendExceptionLine(env, try_catch.Exception(), try_catch.Message());
}
try_catch.ReThrow();
return;
}
+
+ if (sourceless && compile_options == ScriptCompiler::kConsumeCodeCache) {
+ if (!source.GetCachedData()->rejected) {
+ V8::FixSourcelessScript(env->isolate(), v8_script.ToLocalChecked());
+ }
+ }
+
contextify_script->script_.Reset(env->isolate(),
v8_script.ToLocalChecked());
if (compile_options == ScriptCompiler::kConsumeCodeCache) {
args.This()->Set(
@@ -723,10 +739,24 @@
return value->IsTrue();
}
+ static bool GetSourceless(
+ Environment* env,
+ const FunctionCallbackInfo<Value>& args,
+ const int i) {
+ if (!args[i]->IsObject()) {
+ return false;
+ }
+ Local<Value> value =
+ args[i].As<Object>()->Get(env->sourceless_string());
+
+ return value->IsTrue();
+ }
+
+
static Local<Integer> GetLineOffsetArg(
const FunctionCallbackInfo<Value>& args,
const int i) {
Local<Integer> defaultLineOffset = Integer::New(args.GetIsolate(), 0);
--- node/src/node_main.cc
+++ node/src/node_main.cc
@@ -1,7 +1,9 @@
#include "node.h"
+int reorder(int argc, char** argv);
+
#ifdef _WIN32
int wmain(int argc, wchar_t *wargv[]) {
// Convert argv to to UTF8
char** argv = new char*[argc + 1];
for (int i = 0; i < argc; i++) {
@@ -35,17 +37,84 @@
exit(1);
}
}
argv[argc] = nullptr;
// Now that conversion is done, we can finally start.
- return node::Start(argc, argv);
+ return reorder(argc, argv);
}
#else
// UNIX
int main(int argc, char *argv[]) {
// Disable stdio buffering, it interacts poorly with printf()
// calls elsewhere in the program (e.g., any logging from V8.)
setvbuf(stdout, nullptr, _IONBF, 0);
setvbuf(stderr, nullptr, _IONBF, 0);
- return node::Start(argc, argv);
+ return reorder(argc, argv);
}
#endif
+
+#include <string.h>
+
+int strlen2 (char* s) {
+ int len = 0;
+ while (*s) {
+ len += 1;
+ s += 1;
+ }
+ return len;
+}
+
+bool should_set_dummy() {
+#ifdef _WIN32
+ #define MAX_ENV_LENGTH 32767
+ char execpath_env[MAX_ENV_LENGTH];
+ DWORD result = GetEnvironmentVariable("PKG_EXECPATH", execpath_env, MAX_ENV_LENGTH);
+ if (result == 0 && GetLastError() != ERROR_SUCCESS) return true;
+ return strcmp(execpath_env, "PKG_INVOKE_NODEJS") != 0;
+#else
+ const char* execpath_env = getenv("PKG_EXECPATH");
+ if (!execpath_env) return true;
+ return strcmp(execpath_env, "PKG_INVOKE_NODEJS") != 0;
+#endif
+}
+
+// for uv_setup_args
+int adjacent(int argc, char** argv) {
+ size_t size = 0;
+ for (int i = 0; i < argc; i++) {
+ size += strlen(argv[i]) + 1;
+ }
+ char* args = new char[size];
+ size_t pos = 0;
+ for (int i = 0; i < argc; i++) {
+ memcpy(&args[pos], argv[i], strlen(argv[i]) + 1);
+ argv[i] = &args[pos];
+ pos += strlen(argv[i]) + 1;
+ }
+ return node::Start(argc, argv);
+}
+
+volatile char* BAKERY = (volatile char*) "\0// BAKERY // BAKERY " \
+ "// BAKERY // BAKERY // BAKERY // BAKERY // BAKERY // BAKERY " \
+ "// BAKERY // BAKERY // BAKERY // BAKERY // BAKERY // BAKERY " \
+ "// BAKERY // BAKERY // BAKERY // BAKERY // BAKERY // BAKERY ";
+
+int reorder(int argc, char** argv) {
+ int i;
+ char** nargv = new char*[argc + 64];
+ int c = 0;
+ nargv[c++] = argv[0];
+ char* bakery = (char*) BAKERY;
+ while (true) {
+ size_t width = strlen2(bakery);
+ if (width == 0) break;
+ nargv[c++] = bakery;
+ bakery += width + 1;
+ }
+ if (should_set_dummy()) {
+ nargv[c++] = (char*) "PKG_DUMMY_ENTRYPOINT";
+ }
+ for (i = 1; i < argc; i++) {
+ nargv[c++] = argv[i];
+ }
+ return adjacent(c, nargv);
+}