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//===-- MachTask.h ----------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//----------------------------------------------------------------------
//
// MachTask.h
// debugserver
//
// Created by Greg Clayton on 12/5/08.
//
//===----------------------------------------------------------------------===//
#ifndef __MachTask_h__
#define __MachTask_h__
#include <mach/mach.h>
#include <sys/socket.h>
#include <map>
#include <string>
#include "DNBDefs.h"
#include "MachException.h"
#include "MachVMMemory.h"
#include "PThreadMutex.h"
class MachProcess;
typedef uint64_t MachMallocEventId;
enum MachMallocEventType {
eMachMallocEventTypeAlloc = 2,
eMachMallocEventTypeDealloc = 4,
eMachMallocEventTypeOther = 1
};
struct MachMallocEvent {
mach_vm_address_t m_base_address;
uint64_t m_size;
MachMallocEventType m_event_type;
MachMallocEventId m_event_id;
};
class MachTask {
public:
//------------------------------------------------------------------
// Constructors and Destructors
//------------------------------------------------------------------
MachTask(MachProcess *process);
virtual ~MachTask();
void Clear();
kern_return_t Suspend();
kern_return_t Resume();
nub_size_t ReadMemory(nub_addr_t addr, nub_size_t size, void *buf);
nub_size_t WriteMemory(nub_addr_t addr, nub_size_t size, const void *buf);
int GetMemoryRegionInfo(nub_addr_t addr, DNBRegionInfo *region_info);
std::string GetProfileData(DNBProfileDataScanType scanType);
nub_addr_t AllocateMemory(nub_size_t size, uint32_t permissions);
nub_bool_t DeallocateMemory(nub_addr_t addr);
mach_port_t ExceptionPort() const;
bool ExceptionPortIsValid() const;
kern_return_t SaveExceptionPortInfo();
kern_return_t RestoreExceptionPortInfo();
kern_return_t ShutDownExcecptionThread();
bool StartExceptionThread(DNBError &err);
nub_addr_t GetDYLDAllImageInfosAddress(DNBError &err);
kern_return_t BasicInfo(struct task_basic_info *info);
static kern_return_t BasicInfo(task_t task, struct task_basic_info *info);
bool IsValid() const;
static bool IsValid(task_t task);
static void *ExceptionThread(void *arg);
void TaskPortChanged(task_t task);
task_t TaskPort() const { return m_task; }
task_t TaskPortForProcessID(DNBError &err, bool force = false);
static task_t TaskPortForProcessID(pid_t pid, DNBError &err,
uint32_t num_retries = 10,
uint32_t usec_interval = 10000);
MachProcess *Process() { return m_process; }
const MachProcess *Process() const { return m_process; }
nub_size_t PageSize();
protected:
MachProcess *m_process; // The mach process that owns this MachTask
task_t m_task;
MachVMMemory m_vm_memory; // Special mach memory reading class that will take
// care of watching for page and region boundaries
MachException::PortInfo
m_exc_port_info; // Saved settings for all exception ports
pthread_t m_exception_thread; // Thread ID for the exception thread in case we
// need it
mach_port_t m_exception_port; // Exception port on which we will receive child
// exceptions
typedef std::map<mach_vm_address_t, size_t> allocation_collection;
allocation_collection m_allocations;
private:
MachTask(const MachTask &); // Outlaw
MachTask &operator=(const MachTask &rhs); // Outlaw
};
#endif // __MachTask_h__
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