273 lines
9.8 KiB
C++
273 lines
9.8 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsExceptionHandler_h__
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#define nsExceptionHandler_h__
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#include <stddef.h>
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#include <stdint.h>
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#include "nsError.h"
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#include "nsStringGlue.h"
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#if defined(XP_WIN32)
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#ifdef WIN32_LEAN_AND_MEAN
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#undef WIN32_LEAN_AND_MEAN
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#endif
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#include <windows.h>
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#endif
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#if defined(XP_MACOSX)
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#include <mach/mach.h>
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#endif
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#if defined(XP_LINUX)
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#include <signal.h>
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#endif
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class nsIFile;
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template<class KeyClass, class DataType> class nsDataHashtable;
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class nsCStringHashKey;
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namespace CrashReporter {
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nsresult SetExceptionHandler(nsIFile* aXREDirectory, bool force=false);
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nsresult UnsetExceptionHandler();
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/**
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* Tell the crash reporter to recalculate where crash events files should go.
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* SetCrashEventsDir is used before XPCOM is initialized from the startup
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* code.
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*
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* UpdateCrashEventsDir uses the directory service to re-set the
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* crash event directory based on the current profile.
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*
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* 1. If environment variable is present, use it. We don't expect
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* the environment variable except for tests and other atypical setups.
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* 2. <profile>/crashes/events
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* 3. <UAppData>/Crash Reports/events
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*/
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void SetUserAppDataDirectory(nsIFile* aDir);
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void SetProfileDirectory(nsIFile* aDir);
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void UpdateCrashEventsDir();
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void SetMemoryReportFile(nsIFile* aFile);
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/**
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* Get the path where crash event files should be written.
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*/
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bool GetCrashEventsDir(nsAString& aPath);
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bool GetEnabled();
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bool GetServerURL(nsACString& aServerURL);
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nsresult SetServerURL(const nsACString& aServerURL);
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bool GetMinidumpPath(nsAString& aPath);
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nsresult SetMinidumpPath(const nsAString& aPath);
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// AnnotateCrashReport, RemoveCrashReportAnnotation and
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// AppendAppNotesToCrashReport may be called from any thread in a chrome
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// process, but may only be called from the main thread in a content process.
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nsresult AnnotateCrashReport(const nsACString& key, const nsACString& data);
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nsresult RemoveCrashReportAnnotation(const nsACString& key);
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nsresult AppendAppNotesToCrashReport(const nsACString& data);
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// NOTE: If you change this definition, also change the definition in Assertions.h
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// as it is intended to be defining this same function.
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void AnnotateMozCrashReason(const char* aReason);
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void AnnotateOOMAllocationSize(size_t size);
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nsresult SetGarbageCollecting(bool collecting);
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void SetEventloopNestingLevel(uint32_t level);
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nsresult SetRestartArgs(int argc, char** argv);
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nsresult SetupExtraData(nsIFile* aAppDataDirectory,
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const nsACString& aBuildID);
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bool GetLastRunCrashID(nsAString& id);
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// Registers an additional memory region to be included in the minidump
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nsresult RegisterAppMemory(void* ptr, size_t length);
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nsresult UnregisterAppMemory(void* ptr);
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// Functions for working with minidumps and .extras
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typedef nsDataHashtable<nsCStringHashKey, nsCString> AnnotationTable;
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void DeleteMinidumpFilesForID(const nsAString& id);
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bool GetMinidumpForID(const nsAString& id, nsIFile** minidump);
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bool GetIDFromMinidump(nsIFile* minidump, nsAString& id);
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bool GetExtraFileForID(const nsAString& id, nsIFile** extraFile);
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bool GetExtraFileForMinidump(nsIFile* minidump, nsIFile** extraFile);
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bool AppendExtraData(const nsAString& id, const AnnotationTable& data);
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bool AppendExtraData(nsIFile* extraFile, const AnnotationTable& data);
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/*
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* Renames the stand alone dump file aDumpFile to:
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* |aOwnerDumpFile-aDumpFileProcessType.dmp|
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* and moves it into the same directory as aOwnerDumpFile. Does not
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* modify aOwnerDumpFile in any way.
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*
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* @param aDumpFile - the dump file to associate with aOwnerDumpFile.
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* @param aOwnerDumpFile - the new owner of aDumpFile.
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* @param aDumpFileProcessType - process name associated with aDumpFile.
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*/
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void RenameAdditionalHangMinidump(nsIFile* aDumpFile, const nsIFile* aOwnerDumpFile,
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const nsACString& aDumpFileProcessType);
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#ifdef XP_WIN32
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nsresult WriteMinidumpForException(EXCEPTION_POINTERS* aExceptionInfo);
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#endif
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#ifdef XP_LINUX
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bool WriteMinidumpForSigInfo(int signo, siginfo_t* info, void* uc);
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#endif
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#ifdef XP_MACOSX
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nsresult AppendObjCExceptionInfoToAppNotes(void *inException);
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#endif
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nsresult GetSubmitReports(bool* aSubmitReport);
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nsresult SetSubmitReports(bool aSubmitReport);
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// Out-of-process crash reporter API.
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// Initializes out-of-process crash reporting. This method must be called
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// before the platform-specific notification pipe APIs are called. If called
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// from off the main thread, this method will synchronously proxy to the main
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// thread.
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void OOPInit();
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/*
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* Takes a minidump for the current process and returns the dump file.
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* Callers are responsible for managing the resulting file.
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*
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* @param aResult - file pointer that holds the resulting minidump.
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* @param aMoveToPending - if true move the report to the report
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* pending directory.
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* @returns boolean indicating success or failure.
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*/
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bool TakeMinidump(nsIFile** aResult, bool aMoveToPending = false);
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// Return true if a dump was found for |childPid|, and return the
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// path in |dump|. The caller owns the last reference to |dump| if it
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// is non-nullptr. The sequence parameter will be filled with an ordinal
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// indicating which remote process crashed first.
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bool TakeMinidumpForChild(uint32_t childPid,
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nsIFile** dump,
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uint32_t* aSequence = nullptr);
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#if defined(XP_WIN)
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typedef HANDLE ProcessHandle;
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typedef DWORD ThreadId;
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#elif defined(XP_MACOSX)
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typedef task_t ProcessHandle;
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typedef mach_port_t ThreadId;
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#else
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typedef int ProcessHandle;
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typedef int ThreadId;
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#endif
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// Return the current thread's ID.
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//
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// XXX: this is a somewhat out-of-place interface to expose through
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// crashreporter, but it takes significant work to call sys_gettid()
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// correctly on Linux and breakpad has already jumped through those
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// hoops for us.
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ThreadId CurrentThreadId();
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/*
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* Take a minidump of the target process and pair it with an incoming minidump
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* provided by the caller or a new minidump of the calling process and thread.
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* The caller will own both dumps after this call. If this function fails
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* it will attempt to delete any files that were created.
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*
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* The .extra information created will not include an 'additional_minidumps'
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* annotation.
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*
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* @param aTargetPid The target process for the minidump.
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* @param aTargetBlamedThread The target thread for the minidump.
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* @param aIncomingPairName The name to apply to the paired dump the caller
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* passes in.
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* @param aIncomingDumpToPair Existing dump to pair with the new dump. if this
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* is null, TakeMinidumpAndPair will take a new minidump of the calling
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* process and thread and use it in aIncomingDumpToPairs place.
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* @param aTargetDumpOut The target minidump file paired up with
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* aIncomingDumpToPair.
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* @return bool indicating success or failure
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*/
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bool CreateMinidumpsAndPair(ProcessHandle aTargetPid,
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ThreadId aTargetBlamedThread,
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const nsACString& aIncomingPairName,
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nsIFile* aIncomingDumpToPair,
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nsIFile** aTargetDumpOut);
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// Create an additional minidump for a child of a process which already has
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// a minidump (|parentMinidump|).
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// The resulting dump will get the id of the parent and use the |name| as
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// an extension.
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bool CreateAdditionalChildMinidump(ProcessHandle childPid,
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ThreadId childBlamedThread,
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nsIFile* parentMinidump,
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const nsACString& name);
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# if defined(XP_WIN32) || defined(XP_MACOSX)
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// Parent-side API for children
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const char* GetChildNotificationPipe();
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#ifdef MOZ_CRASHREPORTER_INJECTOR
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// Inject a crash report client into an arbitrary process, and inform the
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// callback object when it crashes. Parent process only.
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class InjectorCrashCallback
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{
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public:
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InjectorCrashCallback() { }
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/**
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* Inform the callback of a crash. The client code should call
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* TakeMinidumpForChild to remove it from the PID mapping table.
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*
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* The callback will not be fired if the client has already called
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* TakeMinidumpForChild for this process ID.
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*/
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virtual void OnCrash(DWORD processID) = 0;
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};
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// This method implies OOPInit
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void InjectCrashReporterIntoProcess(DWORD processID, InjectorCrashCallback* cb);
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void UnregisterInjectorCallback(DWORD processID);
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#endif
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// Child-side API
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bool SetRemoteExceptionHandler(const nsACString& crashPipe);
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# elif defined(XP_LINUX)
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// Parent-side API for children
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// Set the outparams for crash reporter server's fd (|childCrashFd|)
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// and the magic fd number it should be remapped to
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// (|childCrashRemapFd|) before exec() in the child process.
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// |SetRemoteExceptionHandler()| in the child process expects to find
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// the server at |childCrashRemapFd|. Return true iff successful.
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//
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// If crash reporting is disabled, both outparams will be set to -1
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// and |true| will be returned.
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bool CreateNotificationPipeForChild(int* childCrashFd, int* childCrashRemapFd);
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// Child-side API
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bool SetRemoteExceptionHandler();
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#endif // XP_WIN32
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bool UnsetRemoteExceptionHandler();
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#if defined(MOZ_WIDGET_ANDROID)
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// Android builds use a custom library loader, so /proc/<pid>/maps
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// will just show anonymous mappings for all the non-system
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// shared libraries. This API is to work around that by providing
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// info about the shared libraries that are mapped into these anonymous
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// mappings.
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void AddLibraryMapping(const char* library_name,
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uintptr_t start_address,
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size_t mapping_length,
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size_t file_offset);
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#endif
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} // namespace CrashReporter
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#endif /* nsExceptionHandler_h__ */
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