/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim: set ts=8 sts=2 et sw=2 tw=80: */ /* 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/. */ #ifndef mozilla_dom_CrashReporterParent_h #define mozilla_dom_CrashReporterParent_h #include "mozilla/dom/PCrashReporterParent.h" #include "mozilla/dom/TabMessageUtils.h" #include "nsIFile.h" #ifdef MOZ_CRASHREPORTER #include "nsExceptionHandler.h" #include "nsDataHashtable.h" #endif namespace mozilla { namespace dom { class CrashReporterParent : public PCrashReporterParent { #ifdef MOZ_CRASHREPORTER typedef CrashReporter::AnnotationTable AnnotationTable; #endif public: CrashReporterParent(); virtual ~CrashReporterParent(); #ifdef MOZ_CRASHREPORTER /* * Attempt to create a bare-bones crash report, along with extra process- * specific annotations present in the given AnnotationTable. Calls * GenerateChildData and FinalizeChildData. * * @returns true if successful, false otherwise. */ template<class Toplevel> bool GenerateCrashReport(Toplevel* t, const AnnotationTable* processNotes); /* * Attempt to generate a parent/child pair of minidumps from the given * toplevel actor. This calls CrashReporter::CreateMinidumpsAndPair to * generate the minidumps. Crash reporter annotations set prior to this * call will be saved via PairedDumpCallbackExtra into an .extra file * under the proper crash id. AnnotateCrashReport annotations are not * set in this call and the report is not finalized. * * @returns true if successful, false otherwise. */ template<class Toplevel> bool GeneratePairedMinidump(Toplevel* t); /* * Attempts to take a minidump of the current process and pair that with * a named minidump handed in by the caller. * * @param aTopLevel - top level actor this reporter is associated with. * @param aMinidump - the minidump to associate with. * @param aPairName - the name of the additional minidump. * @returns true if successful, false otherwise. */ template<class Toplevel> bool GenerateMinidumpAndPair(Toplevel* aTopLevel, nsIFile* aMinidump, const nsACString& aPairName); /** * Apply child process annotations to an existing paired mindump generated * with GeneratePairedMinidump. * * Be careful about calling generate apis immediately after this call, * see FinalizeChildData. * * @param processNotes (optional) - Additional notes to append. Annotations * stored in mNotes will also be applied. processNotes can be null. * @returns true if successful, false otherwise. */ bool GenerateChildData(const AnnotationTable* processNotes); /** * Handles main thread finalization tasks after a report has been * generated. Does the following: * - register the finished report with the crash service manager * - records telemetry related data about crashes * * Be careful about calling generate apis immediately after this call, * if this api is called on a non-main thread it will fire off a runnable * to complete its work async. */ void FinalizeChildData(); /* * Attempt to generate a full paired dump complete with any child * annoations, and finalizes the report. Note this call is only valid * on the main thread. Calling on a background thread will fail. * * @returns true if successful, false otherwise. */ template<class Toplevel> bool GenerateCompleteMinidump(Toplevel* t); /** * Submits a raw minidump handed in, calls GenerateChildData and * FinalizeChildData. Used by content plugins and gmp. * * @returns true if successful, false otherwise. */ bool GenerateCrashReportForMinidump(nsIFile* minidump, const AnnotationTable* processNotes); /* * Instantiate a new crash reporter actor from a given parent that manages * the protocol. * * @returns true if successful, false otherwise. */ template<class Toplevel> static bool CreateCrashReporter(Toplevel* actor); #endif // MOZ_CRASHREPORTER /* * Initialize this reporter with data from the child process. */ void SetChildData(const NativeThreadId& id, const uint32_t& processType); /* * Returns the ID of the child minidump. * GeneratePairedMinidump or GenerateCrashReport must be called first. */ const nsString& ChildDumpID() const { return mChildDumpID; } /* * Add an annotation to our internally tracked list of annotations. * Callers must apply these notes using GenerateChildData otherwise * the notes will get dropped. */ void AnnotateCrashReport(const nsCString& aKey, const nsCString& aData); protected: virtual void ActorDestroy(ActorDestroyReason aWhy) override; virtual bool RecvAnnotateCrashReport(const nsCString& aKey, const nsCString& aData) override { AnnotateCrashReport(aKey, aData); return true; } virtual bool RecvAppendAppNotes(const nsCString& aData) override; #ifdef MOZ_CRASHREPORTER void NotifyCrashService(); #endif #ifdef MOZ_CRASHREPORTER AnnotationTable mNotes; #endif nsCString mAppNotes; nsString mChildDumpID; // stores the child main thread id NativeThreadId mMainThread; time_t mStartTime; // stores the child process type GeckoProcessType mProcessType; bool mInitialized; }; #ifdef MOZ_CRASHREPORTER template<class Toplevel> inline bool CrashReporterParent::GeneratePairedMinidump(Toplevel* t) { mozilla::ipc::ScopedProcessHandle child; #ifdef XP_MACOSX child = t->Process()->GetChildTask(); #else if (!base::OpenPrivilegedProcessHandle(t->OtherPid(), &child.rwget())) { NS_WARNING("Failed to open child process handle."); return false; } #endif nsCOMPtr<nsIFile> childDump; if (CrashReporter::CreateMinidumpsAndPair(child, mMainThread, NS_LITERAL_CSTRING("browser"), nullptr, // pair with a dump of this process and thread getter_AddRefs(childDump)) && CrashReporter::GetIDFromMinidump(childDump, mChildDumpID)) { return true; } return false; } template<class Toplevel> inline bool CrashReporterParent::GenerateMinidumpAndPair(Toplevel* aTopLevel, nsIFile* aMinidumpToPair, const nsACString& aPairName) { mozilla::ipc::ScopedProcessHandle childHandle; #ifdef XP_MACOSX childHandle = aTopLevel->Process()->GetChildTask(); #else if (!base::OpenPrivilegedProcessHandle(aTopLevel->OtherPid(), &childHandle.rwget())) { NS_WARNING("Failed to open child process handle."); return false; } #endif nsCOMPtr<nsIFile> targetDump; if (CrashReporter::CreateMinidumpsAndPair(childHandle, mMainThread, // child thread id aPairName, aMinidumpToPair, getter_AddRefs(targetDump)) && CrashReporter::GetIDFromMinidump(targetDump, mChildDumpID)) { return true; } return false; } template<class Toplevel> inline bool CrashReporterParent::GenerateCrashReport(Toplevel* t, const AnnotationTable* processNotes) { nsCOMPtr<nsIFile> crashDump; if (t->TakeMinidump(getter_AddRefs(crashDump), nullptr) && CrashReporter::GetIDFromMinidump(crashDump, mChildDumpID)) { bool result = GenerateChildData(processNotes); FinalizeChildData(); return result; } return false; } template<class Toplevel> inline bool CrashReporterParent::GenerateCompleteMinidump(Toplevel* t) { mozilla::ipc::ScopedProcessHandle child; if (!NS_IsMainThread()) { NS_WARNING("GenerateCompleteMinidump can't be called on non-main thread."); return false; } #ifdef XP_MACOSX child = t->Process()->GetChildTask(); #else if (!base::OpenPrivilegedProcessHandle(t->OtherPid(), &child.rwget())) { NS_WARNING("Failed to open child process handle."); return false; } #endif nsCOMPtr<nsIFile> childDump; if (CrashReporter::CreateMinidumpsAndPair(child, mMainThread, NS_LITERAL_CSTRING("browser"), nullptr, // pair with a dump of this process and thread getter_AddRefs(childDump)) && CrashReporter::GetIDFromMinidump(childDump, mChildDumpID)) { bool result = GenerateChildData(nullptr); FinalizeChildData(); return result; } return false; } template<class Toplevel> /* static */ bool CrashReporterParent::CreateCrashReporter(Toplevel* actor) { #ifdef MOZ_CRASHREPORTER NativeThreadId id; uint32_t processType; PCrashReporterParent* p = actor->CallPCrashReporterConstructor(&id, &processType); if (p) { static_cast<CrashReporterParent*>(p)->SetChildData(id, processType); } else { NS_ERROR("Error creating crash reporter actor"); } return !!p; #endif return false; } #endif } // namespace dom } // namespace mozilla #endif // mozilla_dom_CrashReporterParent_h