3dc8583c96
Add a more general purpose qMemoryRegionInfo packet which can describe various attributes about a memory region. Currently it will return the start address, size, and permissions (read, write, executable) for the memory region. It may be possible to add additional attributes in the future such as whether the region is designated as stack memory or jitted code a la vmmap. I still haven't implemented the lldb side of the code to use this packet yet so there may be unexpected behavior - but the basic implementation looks about right. I'll hook it up to lldb soon and fix any problems that crop up. llvm-svn: 144175
131 lines
5.3 KiB
C++
131 lines
5.3 KiB
C++
//===-- 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__
|
|
|
|
// C Includes
|
|
#include <mach/mach.h>
|
|
#include <sys/socket.h>
|
|
// C++ Includes
|
|
#include <map>
|
|
// Other libraries and framework includes
|
|
// Project includes
|
|
#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 MemoryRegionInfo (nub_addr_t addr, char *outbuf, nub_size_t outbufsize);
|
|
|
|
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);
|
|
task_t TaskPort () const { return m_task; }
|
|
task_t TaskPortForProcessID (DNBError &err);
|
|
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; }
|
|
|
|
|
|
bool HasMallocLoggingEnabled ();
|
|
|
|
// enumerate the malloc records for a given address (starting with Mac OS X 10.6 Snow Leopard it should include
|
|
// all allocations that *include* address, rather than just those *starting* at address)
|
|
bool EnumerateMallocRecords (mach_vm_address_t address,
|
|
MachMallocEvent *event_buffer,
|
|
uint32_t buffer_size,
|
|
uint32_t *count);
|
|
|
|
// enumerate every malloc record generated by this task, no matter what the address
|
|
bool EnumerateMallocRecords (MachMallocEvent *event_buffer,
|
|
uint32_t buffer_size,
|
|
uint32_t *count);
|
|
|
|
// given a malloc event, report every stack frame that led to this event
|
|
bool EnumerateMallocFrames (MachMallocEventId event_id,
|
|
mach_vm_address_t *function_addresses_buffer,
|
|
uint32_t buffer_size,
|
|
uint32_t *count);
|
|
|
|
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__
|