feat: add V8 crash information to crashReporter

shell/common/api/electron_api_v8_util.cc

@@ -103,6 +103,16 @@ void RequestGarbageCollectionForTesting(v8::Isolate* isolate) {
       v8::Isolate::GarbageCollectionType::kFullGarbageCollection);
 }
 
+// This causes a fatal error by creating a circular extension dependency.
+void TriggerFatalErrorForTesting(v8::Isolate* isolate) {
+  static const char* aDeps[] = {"B"};
+  v8::RegisterExtension(std::make_unique<v8::Extension>("A", "", 1, aDeps));
+  static const char* bDeps[] = {"A"};
+  v8::RegisterExtension(std::make_unique<v8::Extension>("B", "", 1, bDeps));
+  v8::ExtensionConfiguration config(1, bDeps);
+  v8::Context::New(isolate, &config);
+}
+
 bool IsSameOrigin(const GURL& l, const GURL& r) {
   return url::Origin::Create(l).IsSameOriginWith(url::Origin::Create(r));
 }
@@ -143,6 +153,7 @@ void Initialize(v8::Local<v8::Object> exports,
   dict.SetMethod("requestGarbageCollectionForTesting",
                  &RequestGarbageCollectionForTesting);
   dict.SetMethod("isSameOrigin", &IsSameOrigin);
+  dict.SetMethod("triggerFatalErrorForTesting", &TriggerFatalErrorForTesting);
 #ifdef DCHECK_IS_ON
   dict.SetMethod("getWeaklyTrackedValues", &GetWeaklyTrackedValues);
   dict.SetMethod("clearWeaklyTrackedValues", &ClearWeaklyTrackedValues);

shell/common/node_bindings.cc

@@ -24,6 +24,7 @@
 #include "content/public/browser/browser_thread.h"
 #include "content/public/common/content_paths.h"
 #include "electron/buildflags/buildflags.h"
+#include "shell/common/api/electron_bindings.h"
 #include "shell/common/electron_command_line.h"
 #include "shell/common/gin_converters/file_path_converter.h"
 #include "shell/common/gin_helper/dictionary.h"
@@ -33,6 +34,10 @@
 #include "shell/common/mac/main_application_bundle.h"
 #include "shell/common/node_includes.h"
 
+#if !defined(MAS_BUILD)
+#include "shell/common/crash_keys.h"
+#endif
+
 #define ELECTRON_BUILTIN_MODULES(V)      \
   V(electron_browser_app)                \
   V(electron_browser_auto_updater)       \
@@ -132,6 +137,15 @@ bool IsPackagedApp() {
 #endif
 }
 
+void FatalErrorCallback(const char* location, const char* message) {
+  LOG(ERROR) << "Fatal error in V8: " << location << " " << message;
+
+  electron::crash_keys::SetCrashKey("electron.v8-fatal.message", message);
+  electron::crash_keys::SetCrashKey("electron.v8-fatal.location", location);
+
+  electron::ElectronBindings::Crash();
+}
+
 // Initialize Node.js cli options to pass to Node.js
 // See https://nodejs.org/api/cli.html#cli_options
 void SetNodeCliFlags() {
@@ -397,6 +411,10 @@ node::Environment* NodeBindings::CreateEnvironment(
 
   node::IsolateSettings is;
 
+  // Use a custom fatal error callback to allow us to add
+  // crash message and location to CrashReports.
+  is.fatal_error_callback = FatalErrorCallback;
+
   if (browser_env_ == BrowserEnvironment::BROWSER) {
     // Node.js requires that microtask checkpoints be explicitly invoked.
     is.policy = v8::MicrotasksPolicy::kExplicit;

spec-main/api-crash-reporter-spec.ts

@@ -28,6 +28,8 @@ type CrashInfo = {
   globalParam: 'globalValue' | undefined
   addedThenRemoved: 'to-be-removed' | undefined
   longParam: string | undefined
+  'electron.v8-fatal.location': string | undefined
+  'electron.v8-fatal.message': string | undefined
 }
 
 function checkCrash (expectedProcessType: string, fields: CrashInfo) {
@@ -192,6 +194,32 @@ ifdescribe(!isLinuxOnArm && !process.mas && !process.env.DISABLE_CRASH_REPORTER_
         expect(crash.rendererSpecific).to.equal('rs');
         expect(crash.addedThenRemoved).to.be.undefined();
       });
+
+      it('contains v8 crash keys when a v8 crash occurs', async () => {
+        const { remotely } = await startRemoteControlApp();
+        const { port, waitForCrash } = await startServer();
+
+        await remotely((port: number) => {
+          require('electron').crashReporter.start({
+            submitURL: `http://127.0.0.1:${port}`,
+            ignoreSystemCrashHandler: true
+          });
+        }, [port]);
+
+        remotely(() => {
+          const { BrowserWindow } = require('electron');
+          const bw = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true } });
+          bw.loadURL('about:blank');
+          bw.webContents.executeJavaScript('process._linkedBinding(\'electron_common_v8_util\').triggerFatalErrorForTesting()');
+        });
+
+        const crash = await waitForCrash();
+        expect(crash.prod).to.equal('Electron');
+        expect(crash._productName).to.equal('remote-control');
+        expect(crash.process_type).to.equal('renderer');
+        expect(crash['electron.v8-fatal.location']).to.equal('v8::Context::New()');
+        expect(crash['electron.v8-fatal.message']).to.equal('Circular extension dependency');
+      });
     });
   });
 

typings/internal-ambient.d.ts

@@ -44,6 +44,7 @@ declare namespace NodeJS {
     clearWeaklyTrackedValues(): void;
     getWeaklyTrackedValues(): any[];
     addRemoteObjectRef(contextId: string, id: number): void;
+    triggerFatalErrorForTesting(): void;
   }
 
   type AsarFileInfo = {