/* * Copyright (C) 2009 Google Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. */ #ifdef UNSAFE_BUFFERS_BUILD // TODO(crbug.com/351564777): Remove this and convert code to safer constructs. #pragma allow_unsafe_buffers #endif #include "third_party/blink/renderer/bindings/core/v8/v8_initializer.h" #include <algorithm> #include <limits> #include <memory> #include <utility> #include "base/memory/scoped_refptr.h" #include "base/metrics/histogram_functions.h" #include "base/system/sys_info.h" #include "build/build_config.h" #include "components/crash/core/common/crash_key.h" #include "services/metrics/public/cpp/ukm_builders.h" #include "third_party/blink/public/common/switches.h" #include "third_party/blink/public/platform/platform.h" #include "third_party/blink/renderer/bindings/core/v8/binding_security.h" #include "third_party/blink/renderer/bindings/core/v8/capture_source_location.h" #include "third_party/blink/renderer/bindings/core/v8/isolated_world_csp.h" #include "third_party/blink/renderer/bindings/core/v8/native_value_traits_impl.h" #include "third_party/blink/renderer/bindings/core/v8/referrer_script_info.h" #include "third_party/blink/renderer/bindings/core/v8/rejected_promises.h" #include "third_party/blink/renderer/bindings/core/v8/sanitize_script_errors.h" #include "third_party/blink/renderer/bindings/core/v8/script_controller.h" #include "third_party/blink/renderer/bindings/core/v8/script_promise_resolver.h" #include "third_party/blink/renderer/bindings/core/v8/script_value.h" #include "third_party/blink/renderer/bindings/core/v8/shadow_realm_context.h" #include "third_party/blink/renderer/bindings/core/v8/use_counter_callback.h" #include "third_party/blink/renderer/bindings/core/v8/v8_binding_for_core.h" #include "third_party/blink/renderer/bindings/core/v8/v8_context_snapshot.h" #include "third_party/blink/renderer/bindings/core/v8/v8_dom_exception.h" #include "third_party/blink/renderer/bindings/core/v8/v8_embedder_graph_builder.h" #include "third_party/blink/renderer/bindings/core/v8/v8_error_event.h" #include "third_party/blink/renderer/bindings/core/v8/v8_gc_controller.h" #include "third_party/blink/renderer/bindings/core/v8/v8_idle_task_runner.h" #include "third_party/blink/renderer/bindings/core/v8/v8_metrics.h" #include "third_party/blink/renderer/bindings/core/v8/v8_throw_dom_exception.h" #include "third_party/blink/renderer/bindings/core/v8/v8_trusted_script.h" #include "third_party/blink/renderer/bindings/core/v8/v8_union_string_trustedscript.h" #include "third_party/blink/renderer/bindings/core/v8/v8_wasm_response_extensions.h" #include "third_party/blink/renderer/bindings/core/v8/worker_or_worklet_script_controller.h" #include "third_party/blink/renderer/core/dom/dom_exception.h" #include "third_party/blink/renderer/core/dom/events/event_dispatch_forbidden_scope.h" #include "third_party/blink/renderer/core/events/error_event.h" #include "third_party/blink/renderer/core/execution_context/agent.h" #include "third_party/blink/renderer/core/execution_context/execution_context.h" #include "third_party/blink/renderer/core/frame/csp/content_security_policy.h" #include "third_party/blink/renderer/core/frame/local_dom_window.h" #include "third_party/blink/renderer/core/inspector/console_message.h" #include "third_party/blink/renderer/core/inspector/main_thread_debugger.h" #include "third_party/blink/renderer/core/page/page.h" #include "third_party/blink/renderer/core/script/modulator.h" #include "third_party/blink/renderer/core/shadow_realm/shadow_realm_global_scope.h" #include "third_party/blink/renderer/core/trustedtypes/trusted_types_util.h" #include "third_party/blink/renderer/core/workers/worker_global_scope.h" #include "third_party/blink/renderer/core/workers/worklet_global_scope.h" #include "third_party/blink/renderer/platform/bindings/active_script_wrappable_manager.h" #include "third_party/blink/renderer/platform/bindings/dom_wrapper_world.h" #include "third_party/blink/renderer/platform/bindings/exception_state.h" #include "third_party/blink/renderer/platform/bindings/source_location.h" #include "third_party/blink/renderer/platform/bindings/v8_dom_wrapper.h" #include "third_party/blink/renderer/platform/bindings/v8_per_context_data.h" #include "third_party/blink/renderer/platform/bindings/v8_per_isolate_data.h" #include "third_party/blink/renderer/platform/heap/garbage_collected.h" #include "third_party/blink/renderer/platform/heap/thread_state.h" #include "third_party/blink/renderer/platform/heap/thread_state_storage.h" #include "third_party/blink/renderer/platform/instrumentation/histogram.h" #include "third_party/blink/renderer/platform/instrumentation/tracing/trace_event.h" #include "third_party/blink/renderer/platform/runtime_enabled_features.h" #include "third_party/blink/renderer/platform/scheduler/common/features.h" #include "third_party/blink/renderer/platform/scheduler/public/cooperative_scheduling_manager.h" #include "third_party/blink/renderer/platform/scheduler/public/main_thread.h" #include "third_party/blink/renderer/platform/scheduler/public/thread_scheduler.h" #include "third_party/blink/renderer/platform/weborigin/kurl.h" #include "third_party/blink/renderer/platform/weborigin/reporting_disposition.h" #include "third_party/blink/renderer/platform/wtf/sanitizers.h" #include "third_party/blink/renderer/platform/wtf/stack_util.h" #include "third_party/blink/renderer/platform/wtf/text/wtf_string.h" #include "tools/v8_context_snapshot/buildflags.h" #include "v8/include/v8-profiler.h" #include "v8/include/v8.h" #if defined(V8_USE_EXTERNAL_STARTUP_DATA) #include "gin/public/v8_snapshot_file_type.h" #endif namespace blink { #if BUILDFLAG(IS_WIN) // Defined in v8_initializer_win.cc. bool FilterETWSessionByURLCallback(v8::Local<v8::Context> context, const std::string& json_payload); #endif // BUILDFLAG(IS_WIN) namespace { String ExtractMessageForConsole(v8::Isolate* isolate, v8::Local<v8::Value> data) { … } mojom::ConsoleMessageLevel MessageLevelFromNonFatalErrorLevel(int error_level) { … } // NOTE: when editing this, please also edit the error messages we throw when // the size is exceeded (see uses of the constant), which use the human-friendly // "8MB" text. const size_t kWasmWireBytesLimit = …; } // namespace void V8Initializer::MessageHandlerInMainThread(v8::Local<v8::Message> message, v8::Local<v8::Value> data) { … } void V8Initializer::MessageHandlerInWorker(v8::Local<v8::Message> message, v8::Local<v8::Value> data) { … } static void PromiseRejectHandler(v8::PromiseRejectMessage data, RejectedPromises& rejected_promises, ScriptState* script_state) { … } // static void V8Initializer::PromiseRejectHandlerInMainThread( v8::PromiseRejectMessage data) { … } static void PromiseRejectHandlerInWorker(v8::PromiseRejectMessage data) { … } // static void V8Initializer::FailedAccessCheckCallbackInMainThread( v8::Local<v8::Object> holder, v8::AccessType type, v8::Local<v8::Value> data) { … } // Check whether Content Security Policy allows script execution. static bool ContentSecurityPolicyCodeGenerationCheck( v8::Local<v8::Context> context, v8::Local<v8::String> source) { … } static std::pair<bool, v8::MaybeLocal<v8::String>> TrustedTypesCodeGenerationCheck(v8::Local<v8::Context> context, v8::Local<v8::Value> source, bool is_code_like) { … } // static v8::ModifyCodeGenerationFromStringsResult V8Initializer::CodeGenerationCheckCallbackInMainThread( v8::Local<v8::Context> context, v8::Local<v8::Value> source, bool is_code_like) { … } bool V8Initializer::WasmCodeGenerationCheckCallbackInMainThread( v8::Local<v8::Context> context, v8::Local<v8::String> source) { … } void V8Initializer::WasmAsyncResolvePromiseCallback( v8::Isolate* isolate, v8::Local<v8::Context> context, v8::Local<v8::Promise::Resolver> resolver, v8::Local<v8::Value> compilation_result, v8::WasmAsyncSuccess success) { … } namespace { bool SharedArrayBufferConstructorEnabledCallback( v8::Local<v8::Context> context) { … } v8::Local<v8::Value> NewRangeException(v8::Isolate* isolate, const char* message) { … } void ThrowRangeException(v8::Isolate* isolate, const char* message) { … } BASE_FEATURE(…); bool WasmModuleOverride(const v8::FunctionCallbackInfo<v8::Value>& args) { … } bool WasmInstanceOverride(const v8::FunctionCallbackInfo<v8::Value>& args) { … } bool WasmJSStringBuiltinsEnabledCallback(v8::Local<v8::Context> context) { … } bool WasmJSPromiseIntegrationEnabledCallback(v8::Local<v8::Context> context) { … } v8::MaybeLocal<v8::Promise> HostImportModuleDynamically( v8::Local<v8::Context> context, v8::Local<v8::Data> v8_host_defined_options, v8::Local<v8::Value> v8_referrer_resource_url, v8::Local<v8::String> v8_specifier, v8::Local<v8::FixedArray> v8_import_attributes) { … } // https://html.spec.whatwg.org/C/#hostgetimportmetaproperties void HostGetImportMetaProperties(v8::Local<v8::Context> context, v8::Local<v8::Module> module, v8::Local<v8::Object> meta) { … } struct PrintV8OOM { … }; std::ostream& operator<<(std::ostream& os, const PrintV8OOM& oom_details) { … } } // namespace // static void V8Initializer::InitializeV8Common(v8::Isolate* isolate) { … } // Callback functions called when V8 encounters a fatal or OOM error. // Keep them outside the anonymous namespace such that ChromeCrash recognizes // them. void ReportV8FatalError(const char* location, const char* message) { … } void ReportV8OOMError(const char* location, const v8::OOMDetails& details) { … } namespace { class ArrayBufferAllocator : public v8::ArrayBuffer::Allocator { … }; V8PerIsolateData::V8ContextSnapshotMode GetV8ContextSnapshotMode() { … } } // namespace void V8Initializer::InitializeIsolateHolder( const intptr_t* reference_table, const std::string js_command_line_flags) { … } v8::Isolate* V8Initializer::InitializeMainThread() { … } // Stack size for workers is limited to 500KB because default stack size for // secondary threads is 512KB on macOS. See GetDefaultThreadStackSize() in // base/threading/platform_thread_apple.mm for details. // // For 32-bit Windows, the stack region always starts with an odd number of // reserved pages, followed by two guard pages, followed by the committed // memory for the stack, and the worker stack size need to be reduced // (https://crbug.com/1412239). #if defined(ARCH_CPU_32_BITS) && BUILDFLAG(IS_WIN) static const int kWorkerMaxStackSize = 492 * 1024; #else static const int kWorkerMaxStackSize = …; #endif void V8Initializer::InitializeWorker(v8::Isolate* isolate) { … } } // namespace blink
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