mirror of
https://github.com/dart-lang/sdk
synced 2024-10-07 16:30:50 +00:00
8a6e38832f
This fixes failures of standalone{,_2}/io/platform_test in AOT / AppJIT modes (and removes old status file markers which are ignored by approval system). It also fixes a Crash in vm/dart{,_2}/spawn_shutdown_test - where error handling was not correctly done - a `Dart_ExitScope()` was missing before a return. Issue https://github.com/dart-lang/sdk/issues/47632 TEST=standalone{,_2}/io/platform_test & vm/dart{,_2}/spawn_shutdown_test Change-Id: Ic4a8bcaa243c514b11f5127d77ec77259d60ca68 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/219520 Reviewed-by: Alexander Aprelev <aam@google.com> Commit-Queue: Martin Kustermann <kustermann@google.com>
1389 lines
53 KiB
C++
1389 lines
53 KiB
C++
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <memory>
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#include "bin/builtin.h"
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#include "bin/console.h"
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#include "bin/crashpad.h"
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#include "bin/dartdev_isolate.h"
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#include "bin/dartutils.h"
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#include "bin/dfe.h"
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#include "bin/error_exit.h"
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#include "bin/eventhandler.h"
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#include "bin/file.h"
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#include "bin/gzip.h"
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#include "bin/isolate_data.h"
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#include "bin/loader.h"
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#include "bin/main_options.h"
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#include "bin/platform.h"
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#include "bin/process.h"
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#include "bin/snapshot_utils.h"
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#include "bin/thread.h"
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#include "bin/utils.h"
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#include "bin/vmservice_impl.h"
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#include "include/bin/dart_io_api.h"
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#include "include/dart_api.h"
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#include "include/dart_embedder_api.h"
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#include "include/dart_tools_api.h"
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#include "platform/globals.h"
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#include "platform/growable_array.h"
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#include "platform/hashmap.h"
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#include "platform/syslog.h"
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#include "platform/text_buffer.h"
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#include "platform/utils.h"
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extern "C" {
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extern const uint8_t kDartVmSnapshotData[];
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extern const uint8_t kDartVmSnapshotInstructions[];
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extern const uint8_t kDartCoreIsolateSnapshotData[];
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extern const uint8_t kDartCoreIsolateSnapshotInstructions[];
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}
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namespace dart {
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namespace bin {
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// Snapshot pieces we link in a snapshot.
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const uint8_t* vm_snapshot_data = kDartVmSnapshotData;
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const uint8_t* vm_snapshot_instructions = kDartVmSnapshotInstructions;
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const uint8_t* core_isolate_snapshot_data = kDartCoreIsolateSnapshotData;
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const uint8_t* core_isolate_snapshot_instructions =
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kDartCoreIsolateSnapshotInstructions;
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/**
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* Global state used to control and store generation of application snapshots.
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* An application snapshot can be generated and run using the following
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* command
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* dart --snapshot-kind=app-jit --snapshot=<app_snapshot_filename>
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* <script_uri> [<script_options>]
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* To Run the application snapshot generated above, use :
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* dart <app_snapshot_filename> [<script_options>]
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*/
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static bool vm_run_app_snapshot = false;
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static char* app_script_uri = NULL;
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static const uint8_t* app_isolate_snapshot_data = NULL;
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static const uint8_t* app_isolate_snapshot_instructions = NULL;
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static bool kernel_isolate_is_running = false;
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static Dart_Isolate main_isolate = NULL;
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#define SAVE_ERROR_AND_EXIT(result) \
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*error = Utils::StrDup(Dart_GetError(result)); \
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if (Dart_IsCompilationError(result)) { \
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*exit_code = kCompilationErrorExitCode; \
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} else if (Dart_IsApiError(result)) { \
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*exit_code = kApiErrorExitCode; \
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} else { \
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*exit_code = kErrorExitCode; \
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} \
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Dart_ExitScope(); \
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Dart_ShutdownIsolate(); \
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return NULL;
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#define CHECK_RESULT(result) \
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if (Dart_IsError(result)) { \
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SAVE_ERROR_AND_EXIT(result); \
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}
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#define CHECK_RESULT_CLEANUP(result, cleanup) \
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if (Dart_IsError(result)) { \
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delete (cleanup); \
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SAVE_ERROR_AND_EXIT(result); \
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}
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static void WriteDepsFile(Dart_Isolate isolate) {
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if (Options::depfile() == NULL) {
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return;
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}
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File* file = File::Open(NULL, Options::depfile(), File::kWriteTruncate);
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if (file == NULL) {
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ErrorExit(kErrorExitCode, "Error: Unable to open snapshot depfile: %s\n\n",
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Options::depfile());
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}
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bool success = true;
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if (Options::depfile_output_filename() != NULL) {
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success &= file->Print("%s: ", Options::depfile_output_filename());
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} else {
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success &= file->Print("%s: ", Options::snapshot_filename());
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}
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if (kernel_isolate_is_running) {
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Dart_KernelCompilationResult result = Dart_KernelListDependencies();
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if (result.status != Dart_KernelCompilationStatus_Ok) {
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ErrorExit(
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kErrorExitCode,
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"Error: Failed to fetch dependencies from kernel service: %s\n\n",
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result.error);
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}
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success &= file->WriteFully(result.kernel, result.kernel_size);
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free(result.kernel);
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}
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success &= file->Print("\n");
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if (!success) {
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ErrorExit(kErrorExitCode, "Error: Unable to write snapshot depfile: %s\n\n",
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Options::depfile());
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}
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file->Release();
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}
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static void OnExitHook(int64_t exit_code) {
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if (Dart_CurrentIsolate() != main_isolate) {
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Syslog::PrintErr(
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"A snapshot was requested, but a secondary isolate "
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"performed a hard exit (%" Pd64 ").\n",
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exit_code);
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Platform::Exit(kErrorExitCode);
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}
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if (exit_code == 0) {
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if (Options::gen_snapshot_kind() == kAppJIT) {
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Snapshot::GenerateAppJIT(Options::snapshot_filename());
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}
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WriteDepsFile(main_isolate);
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}
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}
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static Dart_Handle SetupCoreLibraries(Dart_Isolate isolate,
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IsolateData* isolate_data,
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bool is_isolate_group_start,
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const char** resolved_packages_config) {
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auto isolate_group_data = isolate_data->isolate_group_data();
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const auto packages_file = isolate_data->packages_file();
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const auto script_uri = isolate_group_data->script_url;
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Dart_Handle result;
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// Prepare builtin and other core libraries for use to resolve URIs.
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// Set up various closures, e.g: printing, timers etc.
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// Set up package configuration for URI resolution.
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result = DartUtils::PrepareForScriptLoading(false, Options::trace_loading());
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if (Dart_IsError(result)) return result;
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// Setup packages config if specified.
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result = DartUtils::SetupPackageConfig(packages_file);
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if (Dart_IsError(result)) return result;
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if (!Dart_IsNull(result) && resolved_packages_config != nullptr) {
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result = Dart_StringToCString(result, resolved_packages_config);
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if (Dart_IsError(result)) return result;
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ASSERT(*resolved_packages_config != nullptr);
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#if !defined(DART_PRECOMPILED_RUNTIME)
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if (is_isolate_group_start) {
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isolate_group_data->set_resolved_packages_config(
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*resolved_packages_config);
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} else {
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ASSERT(strcmp(isolate_group_data->resolved_packages_config(),
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*resolved_packages_config) == 0);
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}
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#endif
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}
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result = Dart_SetEnvironmentCallback(DartUtils::EnvironmentCallback);
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if (Dart_IsError(result)) return result;
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// Setup the native resolver as the snapshot does not carry it.
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Builtin::SetNativeResolver(Builtin::kBuiltinLibrary);
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Builtin::SetNativeResolver(Builtin::kIOLibrary);
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Builtin::SetNativeResolver(Builtin::kCLILibrary);
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VmService::SetNativeResolver();
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const char* namespc =
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Dart_IsKernelIsolate(isolate) ? NULL : Options::namespc();
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result =
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DartUtils::SetupIOLibrary(namespc, script_uri, Options::exit_disabled());
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if (Dart_IsError(result)) return result;
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return Dart_Null();
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}
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static bool OnIsolateInitialize(void** child_callback_data, char** error) {
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Dart_Isolate isolate = Dart_CurrentIsolate();
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ASSERT(isolate != nullptr);
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auto isolate_group_data =
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reinterpret_cast<IsolateGroupData*>(Dart_CurrentIsolateGroupData());
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auto isolate_data = new IsolateData(isolate_group_data);
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*child_callback_data = isolate_data;
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Dart_EnterScope();
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const auto script_uri = isolate_group_data->script_url;
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const bool isolate_run_app_snapshot =
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isolate_group_data->RunFromAppSnapshot();
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Dart_Handle result = SetupCoreLibraries(isolate, isolate_data,
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/*group_start=*/false,
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/*resolved_packages_config=*/nullptr);
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if (Dart_IsError(result)) goto failed;
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if (isolate_run_app_snapshot) {
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result = Loader::InitForSnapshot(script_uri, isolate_data);
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if (Dart_IsError(result)) goto failed;
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} else {
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result = DartUtils::ResolveScript(Dart_NewStringFromCString(script_uri));
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if (Dart_IsError(result)) goto failed;
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if (isolate_group_data->kernel_buffer().get() != nullptr) {
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// Various core-library parts will send requests to the Loader to resolve
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// relative URIs and perform other related tasks. We need Loader to be
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// initialized for this to work because loading from Kernel binary
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// bypasses normal source code loading paths that initialize it.
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const char* resolved_script_uri = NULL;
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result = Dart_StringToCString(result, &resolved_script_uri);
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if (Dart_IsError(result)) goto failed;
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result = Loader::InitForSnapshot(resolved_script_uri, isolate_data);
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if (Dart_IsError(result)) goto failed;
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}
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}
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Dart_ExitScope();
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return true;
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failed:
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*error = Utils::StrDup(Dart_GetError(result));
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Dart_ExitScope();
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return false;
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}
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static Dart_Isolate IsolateSetupHelper(Dart_Isolate isolate,
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bool is_main_isolate,
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const char* script_uri,
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const char* packages_config,
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bool isolate_run_app_snapshot,
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Dart_IsolateFlags* flags,
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char** error,
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int* exit_code) {
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Dart_EnterScope();
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// Set up the library tag handler for the isolate group shared by all
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// isolates in the group.
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Dart_Handle result = Dart_SetLibraryTagHandler(Loader::LibraryTagHandler);
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CHECK_RESULT(result);
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result = Dart_SetDeferredLoadHandler(Loader::DeferredLoadHandler);
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CHECK_RESULT(result);
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auto isolate_data = reinterpret_cast<IsolateData*>(Dart_IsolateData(isolate));
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const char* resolved_packages_config = nullptr;
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result = SetupCoreLibraries(isolate, isolate_data,
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/*is_isolate_group_start=*/true,
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&resolved_packages_config);
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CHECK_RESULT(result);
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#if !defined(DART_PRECOMPILED_RUNTIME)
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auto isolate_group_data = isolate_data->isolate_group_data();
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const uint8_t* kernel_buffer = isolate_group_data->kernel_buffer().get();
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intptr_t kernel_buffer_size = isolate_group_data->kernel_buffer_size();
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if (!isolate_run_app_snapshot && kernel_buffer == NULL &&
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!Dart_IsKernelIsolate(isolate)) {
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if (!dfe.CanUseDartFrontend()) {
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const char* format = "Dart frontend unavailable to compile script %s.";
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intptr_t len = snprintf(NULL, 0, format, script_uri) + 1;
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*error = reinterpret_cast<char*>(malloc(len));
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ASSERT(error != NULL);
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snprintf(*error, len, format, script_uri);
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*exit_code = kErrorExitCode;
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Dart_ExitScope();
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Dart_ShutdownIsolate();
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return NULL;
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}
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uint8_t* application_kernel_buffer = NULL;
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intptr_t application_kernel_buffer_size = 0;
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// Only pass snapshot = true when generating an AppJIT snapshot to avoid
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// duplicate null-safety info messages from the frontend when generating
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// a kernel snapshot (this flag is instead set in
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// Snapshot::GenerateKernel()).
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const bool snapshot = Options::gen_snapshot_kind() == kAppJIT;
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dfe.CompileAndReadScript(script_uri, &application_kernel_buffer,
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&application_kernel_buffer_size, error, exit_code,
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resolved_packages_config, snapshot);
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if (application_kernel_buffer == NULL) {
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Dart_ExitScope();
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Dart_ShutdownIsolate();
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return NULL;
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}
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isolate_group_data->SetKernelBufferNewlyOwned(
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application_kernel_buffer, application_kernel_buffer_size);
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kernel_buffer = application_kernel_buffer;
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kernel_buffer_size = application_kernel_buffer_size;
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}
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if (kernel_buffer != NULL) {
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Dart_Handle uri = Dart_NewStringFromCString(script_uri);
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CHECK_RESULT(uri);
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Dart_Handle resolved_script_uri = DartUtils::ResolveScript(uri);
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CHECK_RESULT(resolved_script_uri);
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result = Dart_LoadScriptFromKernel(kernel_buffer, kernel_buffer_size);
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CHECK_RESULT(result);
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}
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#endif // !defined(DART_PRECOMPILED_RUNTIME)
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if (isolate_run_app_snapshot) {
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Dart_Handle result = Loader::InitForSnapshot(script_uri, isolate_data);
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CHECK_RESULT(result);
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#if !defined(DART_PRECOMPILED_RUNTIME)
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if (is_main_isolate) {
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// Find the canonical uri of the app snapshot. We'll use this to decide if
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// other isolates should use the app snapshot or the core snapshot.
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const char* resolved_script_uri = NULL;
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result = Dart_StringToCString(
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DartUtils::ResolveScript(Dart_NewStringFromCString(script_uri)),
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&resolved_script_uri);
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CHECK_RESULT(result);
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ASSERT(app_script_uri == NULL);
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app_script_uri = Utils::StrDup(resolved_script_uri);
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}
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#endif // !defined(DART_PRECOMPILED_RUNTIME)
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} else {
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#if !defined(DART_PRECOMPILED_RUNTIME)
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// Load the specified application script into the newly created isolate.
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Dart_Handle uri =
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DartUtils::ResolveScript(Dart_NewStringFromCString(script_uri));
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CHECK_RESULT(uri);
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if (kernel_buffer != NULL) {
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// relative URIs and perform other related tasks. We need Loader to be
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// initialized for this to work because loading from Kernel binary
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// bypasses normal source code loading paths that initialize it.
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const char* resolved_script_uri = NULL;
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result = Dart_StringToCString(uri, &resolved_script_uri);
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CHECK_RESULT(result);
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result = Loader::InitForSnapshot(resolved_script_uri, isolate_data);
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CHECK_RESULT(result);
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}
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Dart_TimelineEvent("LoadScript", Dart_TimelineGetMicros(),
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Dart_GetMainPortId(), Dart_Timeline_Event_Async_End, 0,
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NULL, NULL);
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#else
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UNREACHABLE();
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#endif // !defined(DART_PRECOMPILED_RUNTIME)
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}
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if (Options::gen_snapshot_kind() == kAppJIT && !isolate_run_app_snapshot) {
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// If we sort, we must do it for all isolates, not just the main isolate,
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// otherwise isolates related by spawnFunction will disagree on CIDs and
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// cannot correctly send each other messages. If we run from an app
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// snapshot, things are already sorted, and other isolate created by
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// spawnFunction will also load from the same snapshot. Sorting such isolate
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// is counter-productive because it invalidates their code.
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// After we switch to always using isolate groups, this be changed to
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// `generating-app-jit && is_main_isolate`.
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result = Dart_SortClasses();
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CHECK_RESULT(result);
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}
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// Disable pausing the DartDev isolate on start and exit.
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const char* isolate_name = nullptr;
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result = Dart_StringToCString(Dart_DebugName(), &isolate_name);
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CHECK_RESULT(result);
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#if !defined(DART_PRECOMPILED_RUNTIME)
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if (strstr(isolate_name, DART_DEV_ISOLATE_NAME) != nullptr) {
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Dart_SetShouldPauseOnStart(false);
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Dart_SetShouldPauseOnExit(false);
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}
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#endif // !defined(DART_PRECOMPILED_RUNTIME)
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// Make the isolate runnable so that it is ready to handle messages.
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Dart_ExitScope();
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Dart_ExitIsolate();
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*error = Dart_IsolateMakeRunnable(isolate);
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if (*error != NULL) {
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Dart_EnterIsolate(isolate);
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Dart_ShutdownIsolate();
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return NULL;
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}
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return isolate;
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}
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#if !defined(EXCLUDE_CFE_AND_KERNEL_PLATFORM)
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// Returns newly created Kernel Isolate on success, NULL on failure.
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// For now we only support the kernel isolate coming up from an
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// application snapshot or from a .dill file.
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static Dart_Isolate CreateAndSetupKernelIsolate(const char* script_uri,
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const char* packages_config,
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Dart_IsolateFlags* flags,
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char** error,
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int* exit_code) {
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// Do not start a kernel isolate if we are doing a training run
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// to create an app JIT snapshot and a kernel file is specified
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// as the application to run.
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if (Options::gen_snapshot_kind() == kAppJIT) {
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const uint8_t* kernel_buffer = NULL;
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intptr_t kernel_buffer_size = 0;
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dfe.application_kernel_buffer(&kernel_buffer, &kernel_buffer_size);
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if (kernel_buffer_size != 0) {
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return NULL;
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}
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}
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// Create and Start the kernel isolate.
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const char* kernel_snapshot_uri = dfe.frontend_filename();
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const char* uri =
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kernel_snapshot_uri != NULL ? kernel_snapshot_uri : script_uri;
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if (packages_config == NULL) {
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packages_config = Options::packages_file();
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}
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Dart_Isolate isolate = NULL;
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IsolateGroupData* isolate_group_data = nullptr;
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IsolateData* isolate_data = nullptr;
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bool isolate_run_app_snapshot = false;
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AppSnapshot* app_snapshot = NULL;
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// Kernel isolate uses an app snapshot or uses the dill file.
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if ((kernel_snapshot_uri != NULL) &&
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(app_snapshot = Snapshot::TryReadAppSnapshot(
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kernel_snapshot_uri, /*force_load_elf_from_memory=*/false,
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/*decode_uri=*/false)) != nullptr) {
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const uint8_t* isolate_snapshot_data = NULL;
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const uint8_t* isolate_snapshot_instructions = NULL;
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const uint8_t* ignore_vm_snapshot_data;
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const uint8_t* ignore_vm_snapshot_instructions;
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isolate_run_app_snapshot = true;
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app_snapshot->SetBuffers(
|
|
&ignore_vm_snapshot_data, &ignore_vm_snapshot_instructions,
|
|
&isolate_snapshot_data, &isolate_snapshot_instructions);
|
|
isolate_group_data = new IsolateGroupData(
|
|
uri, packages_config, app_snapshot, isolate_run_app_snapshot);
|
|
isolate_data = new IsolateData(isolate_group_data);
|
|
isolate = Dart_CreateIsolateGroup(
|
|
DART_KERNEL_ISOLATE_NAME, DART_KERNEL_ISOLATE_NAME,
|
|
isolate_snapshot_data, isolate_snapshot_instructions, flags,
|
|
isolate_group_data, isolate_data, error);
|
|
}
|
|
if (isolate == NULL) {
|
|
// Clear error from app snapshot and re-trying from kernel file.
|
|
free(*error);
|
|
*error = NULL;
|
|
delete isolate_data;
|
|
delete isolate_group_data;
|
|
|
|
const uint8_t* kernel_service_buffer = NULL;
|
|
intptr_t kernel_service_buffer_size = 0;
|
|
dfe.LoadKernelService(&kernel_service_buffer, &kernel_service_buffer_size);
|
|
ASSERT(kernel_service_buffer != NULL);
|
|
isolate_group_data = new IsolateGroupData(uri, packages_config, nullptr,
|
|
isolate_run_app_snapshot);
|
|
isolate_group_data->SetKernelBufferUnowned(
|
|
const_cast<uint8_t*>(kernel_service_buffer),
|
|
kernel_service_buffer_size);
|
|
isolate_data = new IsolateData(isolate_group_data);
|
|
isolate = Dart_CreateIsolateGroupFromKernel(
|
|
DART_KERNEL_ISOLATE_NAME, DART_KERNEL_ISOLATE_NAME,
|
|
kernel_service_buffer, kernel_service_buffer_size, flags,
|
|
isolate_group_data, isolate_data, error);
|
|
}
|
|
|
|
if (isolate == NULL) {
|
|
Syslog::PrintErr("%s\n", *error);
|
|
delete isolate_data;
|
|
delete isolate_group_data;
|
|
return NULL;
|
|
}
|
|
kernel_isolate_is_running = true;
|
|
|
|
return IsolateSetupHelper(isolate, false, uri, packages_config,
|
|
isolate_run_app_snapshot, flags, error, exit_code);
|
|
}
|
|
#endif // !defined(EXCLUDE_CFE_AND_KERNEL_PLATFORM)
|
|
|
|
// Returns newly created Service Isolate on success, NULL on failure.
|
|
// For now we only support the service isolate coming up from sources
|
|
// which are compiled by the VM parser.
|
|
static Dart_Isolate CreateAndSetupServiceIsolate(const char* script_uri,
|
|
const char* packages_config,
|
|
Dart_IsolateFlags* flags,
|
|
char** error,
|
|
int* exit_code) {
|
|
#if !defined(PRODUCT)
|
|
ASSERT(script_uri != nullptr);
|
|
Dart_Isolate isolate = nullptr;
|
|
auto isolate_group_data =
|
|
new IsolateGroupData(script_uri, packages_config, nullptr, false);
|
|
ASSERT(flags != nullptr);
|
|
|
|
#if defined(DART_PRECOMPILED_RUNTIME)
|
|
// AOT: All isolates start from the app snapshot.
|
|
const uint8_t* isolate_snapshot_data = app_isolate_snapshot_data;
|
|
const uint8_t* isolate_snapshot_instructions =
|
|
app_isolate_snapshot_instructions;
|
|
flags->null_safety =
|
|
Dart_DetectNullSafety(nullptr, nullptr, nullptr, isolate_snapshot_data,
|
|
isolate_snapshot_instructions, nullptr, -1);
|
|
isolate = Dart_CreateIsolateGroup(
|
|
script_uri, DART_VM_SERVICE_ISOLATE_NAME, isolate_snapshot_data,
|
|
isolate_snapshot_instructions, flags, isolate_group_data,
|
|
/*isolate_data=*/nullptr, error);
|
|
#else
|
|
// JIT: Service isolate uses the core libraries snapshot.
|
|
|
|
// Set flag to load and retain the vmservice library.
|
|
flags->load_vmservice_library = true;
|
|
const uint8_t* isolate_snapshot_data = core_isolate_snapshot_data;
|
|
const uint8_t* isolate_snapshot_instructions =
|
|
core_isolate_snapshot_instructions;
|
|
isolate = Dart_CreateIsolateGroup(
|
|
script_uri, DART_VM_SERVICE_ISOLATE_NAME, isolate_snapshot_data,
|
|
isolate_snapshot_instructions, flags, isolate_group_data,
|
|
/*isolate_data=*/nullptr, error);
|
|
#endif // !defined(DART_PRECOMPILED_RUNTIME)
|
|
if (isolate == NULL) {
|
|
delete isolate_group_data;
|
|
return NULL;
|
|
}
|
|
|
|
Dart_EnterScope();
|
|
|
|
Dart_Handle result = Dart_SetLibraryTagHandler(Loader::LibraryTagHandler);
|
|
CHECK_RESULT(result);
|
|
result = Dart_SetDeferredLoadHandler(Loader::DeferredLoadHandler);
|
|
CHECK_RESULT(result);
|
|
|
|
int vm_service_server_port = INVALID_VM_SERVICE_SERVER_PORT;
|
|
if (Options::disable_dart_dev() || Options::disable_dds()) {
|
|
vm_service_server_port = Options::vm_service_server_port();
|
|
} else if (Options::vm_service_server_port() !=
|
|
INVALID_VM_SERVICE_SERVER_PORT) {
|
|
vm_service_server_port = 0;
|
|
}
|
|
|
|
// We do not want to wait for DDS to advertise availability of VM service in
|
|
// the following scenarios:
|
|
// - The DartDev CLI is disabled (CLI isolate starts DDS) and VM service is
|
|
// enabled.
|
|
// - DDS is disabled.
|
|
// TODO(bkonyi): do we want to tie DevTools / DDS to the CLI in the long run?
|
|
bool wait_for_dds_to_advertise_service =
|
|
!(Options::disable_dart_dev() || Options::disable_dds());
|
|
// Load embedder specific bits and return.
|
|
if (!VmService::Setup(
|
|
!wait_for_dds_to_advertise_service ? Options::vm_service_server_ip()
|
|
: DEFAULT_VM_SERVICE_SERVER_IP,
|
|
vm_service_server_port, Options::vm_service_dev_mode(),
|
|
Options::vm_service_auth_disabled(),
|
|
Options::vm_write_service_info_filename(), Options::trace_loading(),
|
|
Options::deterministic(), Options::enable_service_port_fallback(),
|
|
wait_for_dds_to_advertise_service)) {
|
|
*error = Utils::StrDup(VmService::GetErrorMessage());
|
|
return NULL;
|
|
}
|
|
if (Options::compile_all()) {
|
|
result = Dart_CompileAll();
|
|
CHECK_RESULT(result);
|
|
}
|
|
result = Dart_SetEnvironmentCallback(DartUtils::EnvironmentCallback);
|
|
CHECK_RESULT(result);
|
|
Dart_ExitScope();
|
|
Dart_ExitIsolate();
|
|
return isolate;
|
|
#else // !defined(PRODUCT)
|
|
return NULL;
|
|
#endif // !defined(PRODUCT)
|
|
}
|
|
|
|
#if !defined(DART_PRECOMPILED_RUNTIME)
|
|
|
|
static Dart_Isolate CreateAndSetupDartDevIsolate(const char* script_uri,
|
|
const char* packages_config,
|
|
Dart_IsolateFlags* flags,
|
|
char** error,
|
|
int* exit_code) {
|
|
int64_t start = Dart_TimelineGetMicros();
|
|
|
|
auto dartdev_path = DartDevIsolate::TryResolveDartDevSnapshotPath();
|
|
|
|
Dart_Isolate isolate = nullptr;
|
|
const uint8_t* isolate_snapshot_data = core_isolate_snapshot_data;
|
|
const uint8_t* isolate_snapshot_instructions =
|
|
core_isolate_snapshot_instructions;
|
|
IsolateGroupData* isolate_group_data = nullptr;
|
|
IsolateData* isolate_data = nullptr;
|
|
|
|
if (error != nullptr) {
|
|
*error = nullptr;
|
|
}
|
|
AppSnapshot* app_snapshot = nullptr;
|
|
bool isolate_run_app_snapshot = true;
|
|
if (dartdev_path.get() != nullptr &&
|
|
(app_snapshot = Snapshot::TryReadAppSnapshot(
|
|
dartdev_path.get(), /*force_load_elf_from_memory=*/false,
|
|
/*decode_uri=*/false)) != nullptr) {
|
|
const uint8_t* isolate_snapshot_data = NULL;
|
|
const uint8_t* isolate_snapshot_instructions = NULL;
|
|
const uint8_t* ignore_vm_snapshot_data;
|
|
const uint8_t* ignore_vm_snapshot_instructions;
|
|
app_snapshot->SetBuffers(
|
|
&ignore_vm_snapshot_data, &ignore_vm_snapshot_instructions,
|
|
&isolate_snapshot_data, &isolate_snapshot_instructions);
|
|
isolate_group_data =
|
|
new IsolateGroupData(DART_DEV_ISOLATE_NAME, packages_config,
|
|
app_snapshot, isolate_run_app_snapshot);
|
|
isolate_data = new IsolateData(isolate_group_data);
|
|
isolate = Dart_CreateIsolateGroup(
|
|
DART_DEV_ISOLATE_NAME, DART_DEV_ISOLATE_NAME, isolate_snapshot_data,
|
|
isolate_snapshot_instructions, flags, isolate_group_data, isolate_data,
|
|
error);
|
|
}
|
|
|
|
if (isolate == nullptr) {
|
|
isolate_run_app_snapshot = false;
|
|
dartdev_path = DartDevIsolate::TryResolveDartDevKernelPath();
|
|
// Clear error from app snapshot and retry from kernel.
|
|
if (error != nullptr && *error != nullptr) {
|
|
free(*error);
|
|
*error = nullptr;
|
|
}
|
|
|
|
if (app_snapshot != nullptr) {
|
|
delete app_snapshot;
|
|
}
|
|
|
|
if (dartdev_path.get() != nullptr) {
|
|
isolate_group_data =
|
|
new IsolateGroupData(DART_DEV_ISOLATE_NAME, packages_config, nullptr,
|
|
isolate_run_app_snapshot);
|
|
uint8_t* application_kernel_buffer = NULL;
|
|
intptr_t application_kernel_buffer_size = 0;
|
|
dfe.ReadScript(dartdev_path.get(), &application_kernel_buffer,
|
|
&application_kernel_buffer_size, /*decode_uri=*/false);
|
|
isolate_group_data->SetKernelBufferNewlyOwned(
|
|
application_kernel_buffer, application_kernel_buffer_size);
|
|
|
|
isolate_data = new IsolateData(isolate_group_data);
|
|
isolate = Dart_CreateIsolateGroup(
|
|
DART_DEV_ISOLATE_NAME, DART_DEV_ISOLATE_NAME, isolate_snapshot_data,
|
|
isolate_snapshot_instructions, flags, isolate_group_data,
|
|
isolate_data, error);
|
|
}
|
|
}
|
|
|
|
Dart_Isolate created_isolate = nullptr;
|
|
if (isolate == nullptr) {
|
|
Syslog::PrintErr("Failed to start the Dart CLI isolate\n");
|
|
delete isolate_data;
|
|
delete isolate_group_data;
|
|
return nullptr;
|
|
} else {
|
|
created_isolate = IsolateSetupHelper(
|
|
isolate, false, DART_DEV_ISOLATE_NAME, packages_config,
|
|
isolate_run_app_snapshot, flags, error, exit_code);
|
|
}
|
|
int64_t end = Dart_TimelineGetMicros();
|
|
Dart_TimelineEvent("CreateAndSetupDartDevIsolate", start, end,
|
|
Dart_Timeline_Event_Duration, 0, NULL, NULL);
|
|
return created_isolate;
|
|
}
|
|
|
|
#endif // !defined(DART_PRECOMPILED_RUNTIME)
|
|
|
|
// Returns newly created Isolate on success, NULL on failure.
|
|
static Dart_Isolate CreateIsolateGroupAndSetupHelper(
|
|
bool is_main_isolate,
|
|
const char* script_uri,
|
|
const char* name,
|
|
const char* packages_config,
|
|
Dart_IsolateFlags* flags,
|
|
void* callback_data,
|
|
char** error,
|
|
int* exit_code) {
|
|
int64_t start = Dart_TimelineGetMicros();
|
|
ASSERT(script_uri != NULL);
|
|
uint8_t* kernel_buffer = NULL;
|
|
std::shared_ptr<uint8_t> parent_kernel_buffer;
|
|
intptr_t kernel_buffer_size = 0;
|
|
AppSnapshot* app_snapshot = NULL;
|
|
|
|
#if defined(DART_PRECOMPILED_RUNTIME)
|
|
// AOT: All isolates start from the app snapshot.
|
|
bool isolate_run_app_snapshot = true;
|
|
const uint8_t* isolate_snapshot_data = app_isolate_snapshot_data;
|
|
const uint8_t* isolate_snapshot_instructions =
|
|
app_isolate_snapshot_instructions;
|
|
flags->null_safety =
|
|
Dart_DetectNullSafety(nullptr, nullptr, nullptr, isolate_snapshot_data,
|
|
isolate_snapshot_instructions, nullptr, -1);
|
|
#else
|
|
// JIT: Main isolate starts from the app snapshot, if any. Other isolates
|
|
// use the core libraries snapshot.
|
|
bool isolate_run_app_snapshot = false;
|
|
const uint8_t* isolate_snapshot_data = core_isolate_snapshot_data;
|
|
const uint8_t* isolate_snapshot_instructions =
|
|
core_isolate_snapshot_instructions;
|
|
if ((app_isolate_snapshot_data != NULL) &&
|
|
(is_main_isolate || ((app_script_uri != NULL) &&
|
|
(strcmp(script_uri, app_script_uri) == 0)))) {
|
|
isolate_run_app_snapshot = true;
|
|
isolate_snapshot_data = app_isolate_snapshot_data;
|
|
isolate_snapshot_instructions = app_isolate_snapshot_instructions;
|
|
} else if (!is_main_isolate) {
|
|
app_snapshot = Snapshot::TryReadAppSnapshot(script_uri);
|
|
if (app_snapshot != NULL) {
|
|
isolate_run_app_snapshot = true;
|
|
const uint8_t* ignore_vm_snapshot_data;
|
|
const uint8_t* ignore_vm_snapshot_instructions;
|
|
app_snapshot->SetBuffers(
|
|
&ignore_vm_snapshot_data, &ignore_vm_snapshot_instructions,
|
|
&isolate_snapshot_data, &isolate_snapshot_instructions);
|
|
}
|
|
}
|
|
|
|
if (flags->copy_parent_code && callback_data != nullptr) {
|
|
auto parent_isolate_group_data =
|
|
reinterpret_cast<IsolateData*>(callback_data)->isolate_group_data();
|
|
parent_kernel_buffer = parent_isolate_group_data->kernel_buffer();
|
|
kernel_buffer = parent_kernel_buffer.get();
|
|
kernel_buffer_size = parent_isolate_group_data->kernel_buffer_size();
|
|
}
|
|
|
|
if (kernel_buffer == NULL && !isolate_run_app_snapshot) {
|
|
dfe.ReadScript(script_uri, &kernel_buffer, &kernel_buffer_size);
|
|
}
|
|
PathSanitizer script_uri_sanitizer(script_uri);
|
|
PathSanitizer packages_config_sanitizer(packages_config);
|
|
flags->null_safety = Dart_DetectNullSafety(
|
|
script_uri_sanitizer.sanitized_uri(),
|
|
packages_config_sanitizer.sanitized_uri(),
|
|
DartUtils::original_working_directory, isolate_snapshot_data,
|
|
isolate_snapshot_instructions, kernel_buffer, kernel_buffer_size);
|
|
#endif // !defined(DART_PRECOMPILED_RUNTIME)
|
|
|
|
auto isolate_group_data = new IsolateGroupData(
|
|
script_uri, packages_config, app_snapshot, isolate_run_app_snapshot);
|
|
if (kernel_buffer != NULL) {
|
|
if (parent_kernel_buffer) {
|
|
isolate_group_data->SetKernelBufferAlreadyOwned(
|
|
std::move(parent_kernel_buffer), kernel_buffer_size);
|
|
} else {
|
|
isolate_group_data->SetKernelBufferNewlyOwned(kernel_buffer,
|
|
kernel_buffer_size);
|
|
}
|
|
}
|
|
|
|
Dart_Isolate isolate = NULL;
|
|
|
|
IsolateData* isolate_data = nullptr;
|
|
#if !defined(DART_PRECOMPILED_RUNTIME)
|
|
if (!isolate_run_app_snapshot && (isolate_snapshot_data == NULL)) {
|
|
const uint8_t* platform_kernel_buffer = NULL;
|
|
intptr_t platform_kernel_buffer_size = 0;
|
|
dfe.LoadPlatform(&platform_kernel_buffer, &platform_kernel_buffer_size);
|
|
if (platform_kernel_buffer == NULL) {
|
|
platform_kernel_buffer = kernel_buffer;
|
|
platform_kernel_buffer_size = kernel_buffer_size;
|
|
}
|
|
if (platform_kernel_buffer == NULL) {
|
|
#if defined(EXCLUDE_CFE_AND_KERNEL_PLATFORM)
|
|
FATAL(
|
|
"Binary built with --exclude-kernel-service. Cannot run"
|
|
" from source.");
|
|
#else
|
|
FATAL("platform_program cannot be NULL.");
|
|
#endif // defined(EXCLUDE_CFE_AND_KERNEL_PLATFORM)
|
|
}
|
|
// TODO(sivachandra): When the platform program is unavailable, check if
|
|
// application kernel binary is self contained or an incremental binary.
|
|
// Isolate should be created only if it is a self contained kernel binary.
|
|
isolate_data = new IsolateData(isolate_group_data);
|
|
isolate = Dart_CreateIsolateGroupFromKernel(
|
|
script_uri, name, platform_kernel_buffer, platform_kernel_buffer_size,
|
|
flags, isolate_group_data, isolate_data, error);
|
|
} else {
|
|
isolate_data = new IsolateData(isolate_group_data);
|
|
isolate = Dart_CreateIsolateGroup(script_uri, name, isolate_snapshot_data,
|
|
isolate_snapshot_instructions, flags,
|
|
isolate_group_data, isolate_data, error);
|
|
}
|
|
#else
|
|
isolate_data = new IsolateData(isolate_group_data);
|
|
isolate = Dart_CreateIsolateGroup(script_uri, name, isolate_snapshot_data,
|
|
isolate_snapshot_instructions, flags,
|
|
isolate_group_data, isolate_data, error);
|
|
#endif // !defined(DART_PRECOMPILED_RUNTIME)
|
|
|
|
Dart_Isolate created_isolate = NULL;
|
|
if (isolate == NULL) {
|
|
delete isolate_data;
|
|
delete isolate_group_data;
|
|
} else {
|
|
created_isolate = IsolateSetupHelper(
|
|
isolate, is_main_isolate, script_uri, packages_config,
|
|
isolate_run_app_snapshot, flags, error, exit_code);
|
|
}
|
|
int64_t end = Dart_TimelineGetMicros();
|
|
Dart_TimelineEvent("CreateIsolateGroupAndSetupHelper", start, end,
|
|
Dart_Timeline_Event_Duration, 0, NULL, NULL);
|
|
return created_isolate;
|
|
}
|
|
|
|
#undef CHECK_RESULT
|
|
|
|
static Dart_Isolate CreateIsolateGroupAndSetup(const char* script_uri,
|
|
const char* main,
|
|
const char* package_root,
|
|
const char* package_config,
|
|
Dart_IsolateFlags* flags,
|
|
void* callback_data,
|
|
char** error) {
|
|
// The VM should never call the isolate helper with a NULL flags.
|
|
ASSERT(flags != NULL);
|
|
ASSERT(flags->version == DART_FLAGS_CURRENT_VERSION);
|
|
ASSERT(package_root == nullptr);
|
|
|
|
bool dontneed_safe = true;
|
|
#if defined(DART_HOST_OS_LINUX)
|
|
// This would also be true in Linux, except that Google3 overrides the default
|
|
// ELF interpreter to one that apparently doesn't create proper mappings.
|
|
dontneed_safe = false;
|
|
#elif defined(DEBUG)
|
|
// If the snapshot isn't file-backed, madvise(DONT_NEED) is destructive.
|
|
if (Options::force_load_elf_from_memory()) {
|
|
dontneed_safe = false;
|
|
}
|
|
#endif
|
|
flags->snapshot_is_dontneed_safe = dontneed_safe;
|
|
|
|
int exit_code = 0;
|
|
#if !defined(EXCLUDE_CFE_AND_KERNEL_PLATFORM)
|
|
if (strcmp(script_uri, DART_KERNEL_ISOLATE_NAME) == 0) {
|
|
return CreateAndSetupKernelIsolate(script_uri, package_config, flags, error,
|
|
&exit_code);
|
|
}
|
|
#endif // !defined(EXCLUDE_CFE_AND_KERNEL_PLATFORM)
|
|
|
|
#if !defined(DART_PRECOMPILED_RUNTIME)
|
|
if (strcmp(script_uri, DART_DEV_ISOLATE_NAME) == 0) {
|
|
return CreateAndSetupDartDevIsolate(script_uri, package_config, flags,
|
|
error, &exit_code);
|
|
}
|
|
#endif // !defined(DART_PRECOMPILED_RUNTIME)
|
|
|
|
if (strcmp(script_uri, DART_VM_SERVICE_ISOLATE_NAME) == 0) {
|
|
return CreateAndSetupServiceIsolate(script_uri, package_config, flags,
|
|
error, &exit_code);
|
|
}
|
|
|
|
bool is_main_isolate = false;
|
|
return CreateIsolateGroupAndSetupHelper(is_main_isolate, script_uri, main,
|
|
package_config, flags, callback_data,
|
|
error, &exit_code);
|
|
}
|
|
|
|
static void OnIsolateShutdown(void* isolate_group_data, void* isolate_data) {
|
|
Dart_EnterScope();
|
|
Dart_Handle sticky_error = Dart_GetStickyError();
|
|
if (!Dart_IsNull(sticky_error) && !Dart_IsFatalError(sticky_error)) {
|
|
Syslog::PrintErr("%s\n", Dart_GetError(sticky_error));
|
|
}
|
|
Dart_ExitScope();
|
|
}
|
|
|
|
static void DeleteIsolateData(void* isolate_group_data, void* callback_data) {
|
|
auto isolate_data = reinterpret_cast<IsolateData*>(callback_data);
|
|
delete isolate_data;
|
|
}
|
|
|
|
static void DeleteIsolateGroupData(void* callback_data) {
|
|
auto isolate_group_data = reinterpret_cast<IsolateGroupData*>(callback_data);
|
|
delete isolate_group_data;
|
|
}
|
|
|
|
static const char* kStdoutStreamId = "Stdout";
|
|
static const char* kStderrStreamId = "Stderr";
|
|
|
|
static bool ServiceStreamListenCallback(const char* stream_id) {
|
|
if (strcmp(stream_id, kStdoutStreamId) == 0) {
|
|
SetCaptureStdout(true);
|
|
return true;
|
|
} else if (strcmp(stream_id, kStderrStreamId) == 0) {
|
|
SetCaptureStderr(true);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
static void ServiceStreamCancelCallback(const char* stream_id) {
|
|
if (strcmp(stream_id, kStdoutStreamId) == 0) {
|
|
SetCaptureStdout(false);
|
|
} else if (strcmp(stream_id, kStderrStreamId) == 0) {
|
|
SetCaptureStderr(false);
|
|
}
|
|
}
|
|
|
|
static bool FileModifiedCallback(const char* url, int64_t since) {
|
|
if (strncmp(url, "file:///", 8) != 0) {
|
|
// If it isn't a file on local disk, we don't know if it has been
|
|
// modified.
|
|
return true;
|
|
}
|
|
int64_t data[File::kStatSize];
|
|
File::Stat(NULL, url + 7, data);
|
|
if (data[File::kType] == File::kDoesNotExist) {
|
|
return true;
|
|
}
|
|
bool modified = data[File::kModifiedTime] > since;
|
|
return modified;
|
|
}
|
|
|
|
static void EmbedderInformationCallback(Dart_EmbedderInformation* info) {
|
|
info->version = DART_EMBEDDER_INFORMATION_CURRENT_VERSION;
|
|
info->name = "Dart VM";
|
|
Process::GetRSSInformation(&(info->max_rss), &(info->current_rss));
|
|
}
|
|
|
|
#define CHECK_RESULT(result) \
|
|
if (Dart_IsError(result)) { \
|
|
const int exit_code = Dart_IsCompilationError(result) \
|
|
? kCompilationErrorExitCode \
|
|
: kErrorExitCode; \
|
|
ErrorExit(exit_code, "%s\n", Dart_GetError(result)); \
|
|
}
|
|
|
|
void RunMainIsolate(const char* script_name,
|
|
const char* package_config_override,
|
|
CommandLineOptions* dart_options) {
|
|
if (script_name != NULL) {
|
|
const char* base_name = strrchr(script_name, '/');
|
|
if (base_name == NULL) {
|
|
base_name = script_name;
|
|
} else {
|
|
base_name++; // Skip '/'.
|
|
}
|
|
const intptr_t kMaxNameLength = 64;
|
|
char name[kMaxNameLength];
|
|
Utils::SNPrint(name, kMaxNameLength, "dart:%s", base_name);
|
|
Platform::SetProcessName(name);
|
|
}
|
|
|
|
// Call CreateIsolateGroupAndSetup which creates an isolate and loads up
|
|
// the specified application script.
|
|
char* error = NULL;
|
|
int exit_code = 0;
|
|
Dart_IsolateFlags flags;
|
|
Dart_IsolateFlagsInitialize(&flags);
|
|
flags.is_system_isolate = Options::mark_main_isolate_as_system_isolate();
|
|
bool dontneed_safe = true;
|
|
#if defined(DART_HOST_OS_LINUX)
|
|
// This would also be true in Linux, except that Google3 overrides the default
|
|
// ELF interpreter to one that apparently doesn't create proper mappings.
|
|
dontneed_safe = false;
|
|
#elif defined(DEBUG)
|
|
// If the snapshot isn't file-backed, madvise(DONT_NEED) is destructive.
|
|
if (Options::force_load_elf_from_memory()) {
|
|
dontneed_safe = false;
|
|
}
|
|
#endif
|
|
flags.snapshot_is_dontneed_safe = dontneed_safe;
|
|
|
|
Dart_Isolate isolate = CreateIsolateGroupAndSetupHelper(
|
|
/* is_main_isolate */ true, script_name, "main",
|
|
Options::packages_file() == nullptr ? package_config_override
|
|
: Options::packages_file(),
|
|
&flags, NULL /* callback_data */, &error, &exit_code);
|
|
|
|
if (isolate == NULL) {
|
|
Syslog::PrintErr("%s\n", error);
|
|
free(error);
|
|
error = NULL;
|
|
Process::TerminateExitCodeHandler();
|
|
error = Dart_Cleanup();
|
|
if (error != NULL) {
|
|
Syslog::PrintErr("VM cleanup failed: %s\n", error);
|
|
free(error);
|
|
}
|
|
dart::embedder::Cleanup();
|
|
Platform::Exit((exit_code != 0) ? exit_code : kErrorExitCode);
|
|
}
|
|
main_isolate = isolate;
|
|
|
|
Dart_EnterIsolate(isolate);
|
|
ASSERT(isolate == Dart_CurrentIsolate());
|
|
ASSERT(isolate != NULL);
|
|
Dart_Handle result;
|
|
|
|
Dart_EnterScope();
|
|
|
|
auto isolate_group_data =
|
|
reinterpret_cast<IsolateGroupData*>(Dart_IsolateGroupData(isolate));
|
|
if (Options::gen_snapshot_kind() == kKernel) {
|
|
if (vm_run_app_snapshot) {
|
|
Syslog::PrintErr(
|
|
"Cannot create a script snapshot from an app snapshot.\n");
|
|
// The snapshot would contain references to the app snapshot instead of
|
|
// the core snapshot.
|
|
Platform::Exit(kErrorExitCode);
|
|
}
|
|
Snapshot::GenerateKernel(Options::snapshot_filename(), script_name,
|
|
isolate_group_data->resolved_packages_config());
|
|
} else {
|
|
// Lookup the library of the root script.
|
|
Dart_Handle root_lib = Dart_RootLibrary();
|
|
|
|
#if !defined(DART_PRECOMPILED_RUNTIME)
|
|
if (Options::compile_all()) {
|
|
result = Dart_CompileAll();
|
|
CHECK_RESULT(result);
|
|
}
|
|
#endif // !defined(DART_PRECOMPILED_RUNTIME)
|
|
|
|
if (Dart_IsNull(root_lib)) {
|
|
ErrorExit(kErrorExitCode, "Unable to find root library for '%s'\n",
|
|
script_name);
|
|
}
|
|
|
|
// Create a closure for the main entry point which is in the exported
|
|
// namespace of the root library or invoke a getter of the same name
|
|
// in the exported namespace and return the resulting closure.
|
|
Dart_Handle main_closure =
|
|
Dart_GetField(root_lib, Dart_NewStringFromCString("main"));
|
|
CHECK_RESULT(main_closure);
|
|
if (!Dart_IsClosure(main_closure)) {
|
|
ErrorExit(kErrorExitCode, "Unable to find 'main' in root library '%s'\n",
|
|
script_name);
|
|
}
|
|
|
|
// Call _startIsolate in the isolate library to enable dispatching the
|
|
// initial startup message.
|
|
const intptr_t kNumIsolateArgs = 2;
|
|
Dart_Handle isolate_args[kNumIsolateArgs];
|
|
isolate_args[0] = main_closure; // entryPoint
|
|
isolate_args[1] = dart_options->CreateRuntimeOptions(); // args
|
|
|
|
Dart_Handle isolate_lib =
|
|
Dart_LookupLibrary(Dart_NewStringFromCString("dart:isolate"));
|
|
result =
|
|
Dart_Invoke(isolate_lib, Dart_NewStringFromCString("_startMainIsolate"),
|
|
kNumIsolateArgs, isolate_args);
|
|
CHECK_RESULT(result);
|
|
|
|
// Keep handling messages until the last active receive port is closed.
|
|
result = Dart_RunLoop();
|
|
// Generate an app snapshot after execution if specified.
|
|
if (Options::gen_snapshot_kind() == kAppJIT) {
|
|
if (!Dart_IsCompilationError(result)) {
|
|
Snapshot::GenerateAppJIT(Options::snapshot_filename());
|
|
}
|
|
}
|
|
CHECK_RESULT(result);
|
|
}
|
|
|
|
WriteDepsFile(isolate);
|
|
|
|
Dart_ExitScope();
|
|
|
|
// Shutdown the isolate.
|
|
Dart_ShutdownIsolate();
|
|
}
|
|
|
|
#undef CHECK_RESULT
|
|
|
|
static bool CheckForInvalidPath(const char* path) {
|
|
// TODO(zichangguo): "\\?\" is a prefix for paths on Windows.
|
|
// Arguments passed are parsed as an URI. "\\?\" causes problems as a part
|
|
// of URIs. This is a temporary workaround to prevent VM from crashing.
|
|
// Issue: https://github.com/dart-lang/sdk/issues/42779
|
|
if (strncmp(path, "\\\\?\\", 4) == 0) {
|
|
Syslog::PrintErr("\\\\?\\ prefix is not supported");
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
// Observatory assets are not included in a product build.
|
|
#if !defined(PRODUCT)
|
|
extern unsigned int observatory_assets_archive_len;
|
|
extern const uint8_t* observatory_assets_archive;
|
|
|
|
Dart_Handle GetVMServiceAssetsArchiveCallback() {
|
|
uint8_t* decompressed = NULL;
|
|
intptr_t decompressed_len = 0;
|
|
Decompress(observatory_assets_archive, observatory_assets_archive_len,
|
|
&decompressed, &decompressed_len);
|
|
Dart_Handle tar_file =
|
|
DartUtils::MakeUint8Array(decompressed, decompressed_len);
|
|
// Free decompressed memory as it has been copied into a Dart array.
|
|
free(decompressed);
|
|
return tar_file;
|
|
}
|
|
#else // !defined(PRODUCT)
|
|
static Dart_GetVMServiceAssetsArchive GetVMServiceAssetsArchiveCallback = NULL;
|
|
#endif // !defined(PRODUCT)
|
|
|
|
void main(int argc, char** argv) {
|
|
char* script_name = nullptr;
|
|
// Allows the dartdev process to point to the desired package_config.
|
|
char* package_config_override = nullptr;
|
|
const int EXTRA_VM_ARGUMENTS = 10;
|
|
CommandLineOptions vm_options(argc + EXTRA_VM_ARGUMENTS);
|
|
CommandLineOptions dart_options(argc + EXTRA_VM_ARGUMENTS);
|
|
bool print_flags_seen = false;
|
|
bool verbose_debug_seen = false;
|
|
|
|
// Perform platform specific initialization.
|
|
if (!Platform::Initialize()) {
|
|
Syslog::PrintErr("Initialization failed\n");
|
|
Platform::Exit(kErrorExitCode);
|
|
}
|
|
|
|
// Save the console state so we can restore it at shutdown.
|
|
Console::SaveConfig();
|
|
|
|
// On Windows, the argv strings are code page encoded and not
|
|
// utf8. We need to convert them to utf8.
|
|
bool argv_converted = ShellUtils::GetUtf8Argv(argc, argv);
|
|
|
|
#if !defined(DART_PRECOMPILED_RUNTIME)
|
|
// Processing of some command line flags directly manipulates dfe.
|
|
Options::set_dfe(&dfe);
|
|
#endif // !defined(DART_PRECOMPILED_RUNTIME)
|
|
|
|
// When running from the command line we assume that we are optimizing for
|
|
// throughput, and therefore use a larger new gen semi space size and a faster
|
|
// new gen growth factor unless others have been specified.
|
|
if (kWordSize <= 4) {
|
|
vm_options.AddArgument("--new_gen_semi_max_size=16");
|
|
} else {
|
|
vm_options.AddArgument("--new_gen_semi_max_size=32");
|
|
}
|
|
vm_options.AddArgument("--new_gen_growth_factor=4");
|
|
|
|
AppSnapshot* app_snapshot = nullptr;
|
|
#if defined(DART_PRECOMPILED_RUNTIME)
|
|
// If the executable binary contains the runtime together with an appended
|
|
// snapshot, load and run that.
|
|
// Any arguments passed to such an executable are meant for the actual
|
|
// application so skip all Dart VM flag parsing.
|
|
|
|
const size_t kPathBufSize = PATH_MAX + 1;
|
|
char executable_path[kPathBufSize];
|
|
if (Platform::ResolveExecutablePathInto(executable_path, kPathBufSize) > 0) {
|
|
app_snapshot = Snapshot::TryReadAppendedAppSnapshotElf(executable_path);
|
|
if (app_snapshot != nullptr) {
|
|
script_name = argv[0];
|
|
|
|
// Store the executable name.
|
|
Platform::SetExecutableName(argv[0]);
|
|
|
|
// Parse out options to be passed to dart main.
|
|
for (int i = 1; i < argc; i++) {
|
|
dart_options.AddArgument(argv[i]);
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
// Parse command line arguments.
|
|
if (app_snapshot == nullptr) {
|
|
bool success = Options::ParseArguments(
|
|
argc, argv, vm_run_app_snapshot, &vm_options, &script_name,
|
|
&dart_options, &print_flags_seen, &verbose_debug_seen);
|
|
if (!success) {
|
|
if (Options::help_option()) {
|
|
Options::PrintUsage();
|
|
Platform::Exit(0);
|
|
} else if (Options::version_option()) {
|
|
Options::PrintVersion();
|
|
Platform::Exit(0);
|
|
} else if (print_flags_seen) {
|
|
// Will set the VM flags, print them out and then we exit as no
|
|
// script was specified on the command line.
|
|
char* error =
|
|
Dart_SetVMFlags(vm_options.count(), vm_options.arguments());
|
|
if (error != NULL) {
|
|
Syslog::PrintErr("Setting VM flags failed: %s\n", error);
|
|
free(error);
|
|
Platform::Exit(kErrorExitCode);
|
|
}
|
|
Platform::Exit(0);
|
|
} else {
|
|
// This usage error case will only be invoked when
|
|
// Options::disable_dart_dev() is false.
|
|
Options::PrintUsage();
|
|
Platform::Exit(kErrorExitCode);
|
|
}
|
|
}
|
|
}
|
|
|
|
DartUtils::SetEnvironment(Options::environment());
|
|
|
|
if (Options::suppress_core_dump()) {
|
|
Platform::SetCoreDumpResourceLimit(0);
|
|
} else {
|
|
InitializeCrashpadClient();
|
|
}
|
|
|
|
Loader::InitOnce();
|
|
|
|
auto try_load_snapshots_lambda = [&](void) -> void {
|
|
if (app_snapshot == nullptr) {
|
|
// For testing purposes we add a flag to debug-mode to use the
|
|
// in-memory ELF loader.
|
|
const bool force_load_elf_from_memory =
|
|
false DEBUG_ONLY(|| Options::force_load_elf_from_memory());
|
|
app_snapshot =
|
|
Snapshot::TryReadAppSnapshot(script_name, force_load_elf_from_memory);
|
|
}
|
|
if (app_snapshot != nullptr) {
|
|
vm_run_app_snapshot = true;
|
|
app_snapshot->SetBuffers(&vm_snapshot_data, &vm_snapshot_instructions,
|
|
&app_isolate_snapshot_data,
|
|
&app_isolate_snapshot_instructions);
|
|
}
|
|
};
|
|
|
|
// At this point, script_name now points to a script if DartDev is disabled
|
|
// or a valid file path was provided as the first non-flag argument.
|
|
// Otherwise, script_name can be NULL if DartDev should be run.
|
|
if (script_name != nullptr) {
|
|
if (!CheckForInvalidPath(script_name)) {
|
|
Platform::Exit(0);
|
|
}
|
|
try_load_snapshots_lambda();
|
|
}
|
|
|
|
#if defined(DART_PRECOMPILED_RUNTIME)
|
|
vm_options.AddArgument("--precompilation");
|
|
#endif
|
|
// If we need to write an app-jit snapshot or a depfile, then add an exit
|
|
// hook that writes the snapshot and/or depfile as appropriate.
|
|
if ((Options::gen_snapshot_kind() == kAppJIT) ||
|
|
(Options::depfile() != NULL)) {
|
|
Process::SetExitHook(OnExitHook);
|
|
}
|
|
|
|
char* error = nullptr;
|
|
if (!dart::embedder::InitOnce(&error)) {
|
|
Syslog::PrintErr("Standalone embedder initialization failed: %s\n", error);
|
|
free(error);
|
|
Platform::Exit(kErrorExitCode);
|
|
}
|
|
|
|
error = Dart_SetVMFlags(vm_options.count(), vm_options.arguments());
|
|
if (error != NULL) {
|
|
Syslog::PrintErr("Setting VM flags failed: %s\n", error);
|
|
free(error);
|
|
Platform::Exit(kErrorExitCode);
|
|
}
|
|
|
|
// Note: must read platform only *after* VM flags are parsed because
|
|
// they might affect how the platform is loaded.
|
|
#if !defined(DART_PRECOMPILED_RUNTIME)
|
|
// Load vm_platform_strong.dill for dart:* source support.
|
|
dfe.Init();
|
|
dfe.set_verbosity(Options::verbosity_level());
|
|
if (script_name != nullptr) {
|
|
uint8_t* application_kernel_buffer = NULL;
|
|
intptr_t application_kernel_buffer_size = 0;
|
|
dfe.ReadScript(script_name, &application_kernel_buffer,
|
|
&application_kernel_buffer_size);
|
|
if (application_kernel_buffer != NULL) {
|
|
// Since we loaded the script anyway, save it.
|
|
dfe.set_application_kernel_buffer(application_kernel_buffer,
|
|
application_kernel_buffer_size);
|
|
Options::dfe()->set_use_dfe();
|
|
}
|
|
}
|
|
#endif
|
|
|
|
// Initialize the Dart VM.
|
|
Dart_InitializeParams init_params;
|
|
memset(&init_params, 0, sizeof(init_params));
|
|
init_params.version = DART_INITIALIZE_PARAMS_CURRENT_VERSION;
|
|
init_params.vm_snapshot_data = vm_snapshot_data;
|
|
init_params.vm_snapshot_instructions = vm_snapshot_instructions;
|
|
init_params.create_group = CreateIsolateGroupAndSetup;
|
|
init_params.initialize_isolate = OnIsolateInitialize;
|
|
init_params.shutdown_isolate = OnIsolateShutdown;
|
|
init_params.cleanup_isolate = DeleteIsolateData;
|
|
init_params.cleanup_group = DeleteIsolateGroupData;
|
|
init_params.file_open = DartUtils::OpenFile;
|
|
init_params.file_read = DartUtils::ReadFile;
|
|
init_params.file_write = DartUtils::WriteFile;
|
|
init_params.file_close = DartUtils::CloseFile;
|
|
init_params.entropy_source = DartUtils::EntropySource;
|
|
init_params.get_service_assets = GetVMServiceAssetsArchiveCallback;
|
|
#if !defined(DART_PRECOMPILED_RUNTIME)
|
|
init_params.start_kernel_isolate =
|
|
dfe.UseDartFrontend() && dfe.CanUseDartFrontend();
|
|
#else
|
|
init_params.start_kernel_isolate = false;
|
|
#endif
|
|
|
|
error = Dart_Initialize(&init_params);
|
|
if (error != NULL) {
|
|
dart::embedder::Cleanup();
|
|
Syslog::PrintErr("VM initialization failed: %s\n", error);
|
|
free(error);
|
|
Platform::Exit(kErrorExitCode);
|
|
}
|
|
|
|
Dart_SetServiceStreamCallbacks(&ServiceStreamListenCallback,
|
|
&ServiceStreamCancelCallback);
|
|
Dart_SetFileModifiedCallback(&FileModifiedCallback);
|
|
Dart_SetEmbedderInformationCallback(&EmbedderInformationCallback);
|
|
bool ran_dart_dev = false;
|
|
bool should_run_user_program = true;
|
|
#if !defined(DART_PRECOMPILED_RUNTIME)
|
|
if (DartDevIsolate::should_run_dart_dev() && !Options::disable_dart_dev() &&
|
|
Options::gen_snapshot_kind() == SnapshotKind::kNone) {
|
|
DartDevIsolate::DartDev_Result dartdev_result = DartDevIsolate::RunDartDev(
|
|
CreateIsolateGroupAndSetup, &package_config_override, &script_name,
|
|
&dart_options);
|
|
ASSERT(dartdev_result != DartDevIsolate::DartDev_Result_Unknown);
|
|
ran_dart_dev = true;
|
|
should_run_user_program =
|
|
(dartdev_result == DartDevIsolate::DartDev_Result_Run);
|
|
if (should_run_user_program) {
|
|
try_load_snapshots_lambda();
|
|
}
|
|
}
|
|
#endif // !defined(DART_PRECOMPILED_RUNTIME)
|
|
|
|
if (should_run_user_program) {
|
|
if (!Dart_IsPrecompiledRuntime() && Snapshot::IsAOTSnapshot(script_name)) {
|
|
Syslog::PrintErr(
|
|
"%s is an AOT snapshot and should be run with 'dartaotruntime'\n",
|
|
script_name);
|
|
Platform::Exit(kErrorExitCode);
|
|
} else {
|
|
// Run the main isolate until we aren't told to restart.
|
|
RunMainIsolate(script_name, package_config_override, &dart_options);
|
|
}
|
|
}
|
|
|
|
// Terminate process exit-code handler.
|
|
Process::TerminateExitCodeHandler();
|
|
|
|
error = Dart_Cleanup();
|
|
if (error != NULL) {
|
|
Syslog::PrintErr("VM cleanup failed: %s\n", error);
|
|
free(error);
|
|
}
|
|
const intptr_t global_exit_code = Process::GlobalExitCode();
|
|
dart::embedder::Cleanup();
|
|
|
|
delete app_snapshot;
|
|
free(app_script_uri);
|
|
if (ran_dart_dev && script_name != nullptr) {
|
|
free(script_name);
|
|
}
|
|
|
|
// Free copied argument strings if converted.
|
|
if (argv_converted) {
|
|
for (int i = 0; i < argc; i++) {
|
|
free(argv[i]);
|
|
}
|
|
}
|
|
|
|
// Free environment if any.
|
|
Options::DestroyEnvironment();
|
|
|
|
Platform::Exit(global_exit_code);
|
|
}
|
|
|
|
} // namespace bin
|
|
} // namespace dart
|
|
|
|
int main(int argc, char** argv) {
|
|
dart::bin::main(argc, argv);
|
|
UNREACHABLE();
|
|
}
|