gecko/toolkit/crashreporter/nsExceptionHandler.h
Benjamin Smedberg 5e47967333 Bug 771251 - OOP crash reporting accesses the directory service off the main thread. In addition, the first design of the crash injector callback meant that we're dropping some set of Flash crashes which happen during an RPC call. r=ted
* Fix the directory service usage by saving the pending directory path from OOPInit.
* Force clients to call OOPInit on the main thread.
* Make injected crashes available via TakeMinidumpForChild and give each crash a sequence number so that we can pick the earliest crash from the three possibilities; delete the other two to avoid polluting about:crashes
2012-07-10 22:20:05 -04:00

190 lines
6.6 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 nsExceptionHandler_h__
#define nsExceptionHandler_h__
#include "nscore.h"
#include "nsDataHashtable.h"
#include "nsXPCOM.h"
#include "nsStringGlue.h"
#include "nsIFile.h"
#if defined(XP_WIN32)
#ifdef WIN32_LEAN_AND_MEAN
#undef WIN32_LEAN_AND_MEAN
#endif
#include <windows.h>
#endif
#if defined(XP_MACOSX)
#include <mach/mach.h>
#endif
namespace CrashReporter {
nsresult SetExceptionHandler(nsIFile* aXREDirectory, bool force=false);
nsresult UnsetExceptionHandler();
bool GetEnabled();
bool GetServerURL(nsACString& aServerURL);
nsresult SetServerURL(const nsACString& aServerURL);
bool GetMinidumpPath(nsAString& aPath);
nsresult SetMinidumpPath(const nsAString& aPath);
// AnnotateCrashReport and AppendAppNotesToCrashReport may be called from any
// thread in a chrome process, but may only be called from the main thread in
// a content process.
nsresult AnnotateCrashReport(const nsACString& key, const nsACString& data);
nsresult AppendAppNotesToCrashReport(const nsACString& data);
nsresult SetRestartArgs(int argc, char** argv);
nsresult SetupExtraData(nsIFile* aAppDataDirectory,
const nsACString& aBuildID);
// Registers an additional memory region to be included in the minidump
nsresult RegisterAppMemory(void* ptr, size_t length);
nsresult UnregisterAppMemory(void* ptr);
// Functions for working with minidumps and .extras
typedef nsDataHashtable<nsCStringHashKey, nsCString> AnnotationTable;
bool GetMinidumpForID(const nsAString& id, nsIFile** minidump);
bool GetIDFromMinidump(nsIFile* minidump, nsAString& id);
bool GetExtraFileForID(const nsAString& id, nsIFile** extraFile);
bool GetExtraFileForMinidump(nsIFile* minidump, nsIFile** extraFile);
bool AppendExtraData(const nsAString& id, const AnnotationTable& data);
bool AppendExtraData(nsIFile* extraFile, const AnnotationTable& data);
#ifdef XP_WIN32
nsresult WriteMinidumpForException(EXCEPTION_POINTERS* aExceptionInfo);
#endif
#ifdef XP_MACOSX
nsresult AppendObjCExceptionInfoToAppNotes(void *inException);
#endif
nsresult GetSubmitReports(bool* aSubmitReport);
nsresult SetSubmitReports(bool aSubmitReport);
// Out-of-process crash reporter API.
// Initializes out-of-process crash reporting. This method must be called
// before the platform-specifi notificationpipe APIs are called.
void OOPInit();
// Return true if a dump was found for |childPid|, and return the
// path in |dump|. The caller owns the last reference to |dump| if it
// is non-NULL. The sequence parameter will be filled with an ordinal
// indicating which remote process crashed first.
bool TakeMinidumpForChild(PRUint32 childPid,
nsIFile** dump NS_OUTPARAM,
PRUint32* aSequence = NULL);
#if defined(XP_WIN)
typedef HANDLE ProcessHandle;
typedef DWORD ThreadId;
#elif defined(XP_MACOSX)
typedef task_t ProcessHandle;
typedef mach_port_t ThreadId;
#else
typedef int ProcessHandle;
typedef int ThreadId;
#endif
// Return the current thread's ID.
//
// XXX: this is a somewhat out-of-place interface to expose through
// crashreporter, but it takes significant work to call sys_gettid()
// correctly on Linux and breakpad has already jumped through those
// hoops for us.
ThreadId CurrentThreadId();
// Create new minidumps that are snapshots of the state of this parent
// process and |childPid|. Return true on success along with the
// minidumps and a new UUID that can be used to correlate the dumps.
//
// If this function fails, it's the caller's responsibility to clean
// up |childDump| and |parentDump|. Either or both can be created and
// returned non-null on failure.
bool CreatePairedMinidumps(ProcessHandle childPid,
ThreadId childBlamedThread,
nsAString* pairGUID NS_OUTPARAM,
nsIFile** childDump NS_OUTPARAM,
nsIFile** parentDump NS_OUTPARAM);
# if defined(XP_WIN32) || defined(XP_MACOSX)
// Parent-side API for children
const char* GetChildNotificationPipe();
#ifdef MOZ_CRASHREPORTER_INJECTOR
// Inject a crash report client into an arbitrary process, and inform the
// callback object when it crashes. Parent process only.
class InjectorCrashCallback
{
public:
InjectorCrashCallback() { }
/**
* Inform the callback of a crash. The client code should call
* TakeMinidumpForChild to remove it from the PID mapping table.
*
* The callback will not be fired if the client has already called
* TakeMinidumpForChild for this process ID.
*/
virtual void OnCrash(DWORD processID) = 0;
};
// This method implies OOPInit
void InjectCrashReporterIntoProcess(DWORD processID, InjectorCrashCallback* cb);
void UnregisterInjectorCallback(DWORD processID);
#endif
// Child-side API
bool SetRemoteExceptionHandler(const nsACString& crashPipe);
# elif defined(XP_LINUX)
// Parent-side API for children
// Set the outparams for crash reporter server's fd (|childCrashFd|)
// and the magic fd number it should be remapped to
// (|childCrashRemapFd|) before exec() in the child process.
// |SetRemoteExceptionHandler()| in the child process expects to find
// the server at |childCrashRemapFd|. Return true iff successful.
//
// If crash reporting is disabled, both outparams will be set to -1
// and |true| will be returned.
bool CreateNotificationPipeForChild(int* childCrashFd, int* childCrashRemapFd);
// Child-side API
bool SetRemoteExceptionHandler();
#endif // XP_WIN32
bool UnsetRemoteExceptionHandler();
#if defined(__ANDROID__)
// Android builds use a custom library loader, so /proc/<pid>/maps
// will just show anonymous mappings for all the non-system
// shared libraries. This API is to work around that by providing
// info about the shared libraries that are mapped into these anonymous
// mappings.
void AddLibraryMapping(const char* library_name,
const char* file_id,
uintptr_t start_address,
size_t mapping_length,
size_t file_offset);
void AddLibraryMappingForChild(PRUint32 childPid,
const char* library_name,
const char* file_id,
uintptr_t start_address,
size_t mapping_length,
size_t file_offset);
void RemoveLibraryMappingsForChild(PRUint32 childPid);
#endif
}
#endif /* nsExceptionHandler_h__ */