1 files changed, 79 insertions, 0 deletions
diff --git a/mobile/android/modules/geckoview/ChildCrashHandler.sys.mjs b/mobile/android/modules/geckoview/ChildCrashHandler.sys.mjs
new file mode 100644
index 0000000000..d114c6d24a
--- /dev/null
+++ b/mobile/android/modules/geckoview/ChildCrashHandler.sys.mjs
@@ -0,0 +1,79 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+import { GeckoViewUtils } from "resource://gre/modules/GeckoViewUtils.sys.mjs";
+import { AppConstants } from "resource://gre/modules/AppConstants.sys.mjs";
+
+const lazy = {};
+
+ChromeUtils.defineESModuleGetters(lazy, {
+  EventDispatcher: "resource://gre/modules/Messaging.sys.mjs",
+});
+
+const { debug, warn } = GeckoViewUtils.initLogging("ChildCrashHandler");
+
+function getDir(name) {
+  const uAppDataPath = Services.dirsvc.get("UAppData", Ci.nsIFile).path;
+  return PathUtils.join(uAppDataPath, "Crash Reports", name);
+}
+
+function getPendingMinidump(id) {
+  const pendingDir = getDir("pending");
+
+  return [".dmp", ".extra"].map(suffix => {
+    return PathUtils.join(pendingDir, `${id}${suffix}`);
+  });
+}
+
+export var ChildCrashHandler = {
+  // The event listener for this is hooked up in GeckoViewStartup.jsm
+  observe(aSubject, aTopic, aData) {
+    if (
+      aTopic !== "ipc:content-shutdown" &&
+      aTopic !== "compositor:process-aborted"
+    ) {
+      return;
+    }
+
+    aSubject.QueryInterface(Ci.nsIPropertyBag2);
+
+    const disableReporting = Services.env.get("MOZ_CRASHREPORTER_NO_REPORT");
+
+    if (
+      !aSubject.get("abnormal") ||
+      !AppConstants.MOZ_CRASHREPORTER ||
+      disableReporting
+    ) {
+      return;
+    }
+
+    // If dumpID is empty the process was likely killed by the system and we therefore do not want
+    // to report the crash.
+    const dumpID = aSubject.get("dumpID");
+    if (!dumpID) {
+      Services.telemetry
+        .getHistogramById("FX_CONTENT_CRASH_DUMP_UNAVAILABLE")
+        .add(1);
+      return;
+    }
+
+    debug`Notifying child process crash, dump ID ${dumpID}`;
+    const [minidumpPath, extrasPath] = getPendingMinidump(dumpID);
+
+    // Report GPU process crashes as occuring in a background process, and others as foreground.
+    const processType =
+      aTopic === "compositor:process-aborted"
+        ? "BACKGROUND_CHILD"
+        : "FOREGROUND_CHILD";
+
+    lazy.EventDispatcher.instance.sendRequest({
+      type: "GeckoView:ChildCrashReport",
+      minidumpPath,
+      extrasPath,
+      success: true,
+      fatal: false,
+      processType,
+    });
+  },
+};