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//===-- MachThread.h --------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Created by Greg Clayton on 6/19/07.
//
//===----------------------------------------------------------------------===//
#ifndef __MachThread_h__
#define __MachThread_h__
#include <string>
#include <vector>
#include <libproc.h>
#include <mach/mach.h>
#include <pthread.h>
#include <sys/signal.h>
#include "PThreadCondition.h"
#include "PThreadMutex.h"
#include "MachException.h"
#include "DNBArch.h"
#include "DNBRegisterInfo.h"
#include "ThreadInfo.h"
class DNBBreakpoint;
class MachProcess;
class MachThreadList;
class MachThread
{
public:
MachThread (MachProcess *process, bool is_64_bit, uint64_t unique_thread_id = 0, thread_t mach_port_number = 0);
~MachThread ();
MachProcess * Process() { return m_process; }
const MachProcess *
Process() const { return m_process; }
nub_process_t ProcessID() const;
void Dump(uint32_t index);
uint64_t ThreadID() const { return m_unique_id; }
thread_t MachPortNumber() const { return m_mach_port_number; }
thread_t InferiorThreadID() const;
uint32_t SequenceID() const { return m_seq_id; }
static bool ThreadIDIsValid(uint64_t thread); // The 64-bit system-wide unique thread identifier
static bool MachPortNumberIsValid(thread_t thread); // The mach port # for this thread in debugserver namespace
void Resume(bool others_stopped);
void Suspend();
bool SetSuspendCountBeforeResume(bool others_stopped);
bool RestoreSuspendCountAfterStop();
bool GetRegisterState(int flavor, bool force);
bool SetRegisterState(int flavor);
uint64_t GetPC(uint64_t failValue = INVALID_NUB_ADDRESS); // Get program counter
bool SetPC(uint64_t value); // Set program counter
uint64_t GetSP(uint64_t failValue = INVALID_NUB_ADDRESS); // Get stack pointer
DNBBreakpoint * CurrentBreakpoint();
uint32_t EnableHardwareBreakpoint (const DNBBreakpoint *breakpoint);
uint32_t EnableHardwareWatchpoint (const DNBBreakpoint *watchpoint, bool also_set_on_task);
bool DisableHardwareBreakpoint (const DNBBreakpoint *breakpoint);
bool DisableHardwareWatchpoint (const DNBBreakpoint *watchpoint, bool also_set_on_task);
uint32_t NumSupportedHardwareWatchpoints () const;
bool RollbackTransForHWP();
bool FinishTransForHWP();
nub_state_t GetState();
void SetState(nub_state_t state);
void ThreadWillResume (const DNBThreadResumeAction *thread_action, bool others_stopped = false);
bool ShouldStop(bool &step_more);
bool IsStepping();
bool ThreadDidStop();
bool NotifyException(MachException::Data& exc);
const MachException::Data& GetStopException() { return m_stop_exception; }
nub_size_t GetNumRegistersInSet(nub_size_t regSet) const;
const char * GetRegisterSetName(nub_size_t regSet) const;
const DNBRegisterInfo *
GetRegisterInfo(nub_size_t regSet, nub_size_t regIndex) const;
void DumpRegisterState(nub_size_t regSet);
const DNBRegisterSetInfo *
GetRegisterSetInfo(nub_size_t *num_reg_sets ) const;
bool GetRegisterValue ( uint32_t reg_set_idx, uint32_t reg_idx, DNBRegisterValue *reg_value );
bool SetRegisterValue ( uint32_t reg_set_idx, uint32_t reg_idx, const DNBRegisterValue *reg_value );
nub_size_t GetRegisterContext (void *buf, nub_size_t buf_len);
nub_size_t SetRegisterContext (const void *buf, nub_size_t buf_len);
uint32_t SaveRegisterState ();
bool RestoreRegisterState (uint32_t save_id);
void NotifyBreakpointChanged (const DNBBreakpoint *bp)
{
}
bool IsUserReady();
struct thread_basic_info *
GetBasicInfo ();
const char * GetBasicInfoAsString () const;
const char * GetName ();
DNBArchProtocol*
GetArchProtocol()
{
return m_arch_ap.get();
}
ThreadInfo::QoS GetRequestedQoS (nub_addr_t tsd, uint64_t dti_qos_class_index);
nub_addr_t GetPThreadT();
nub_addr_t GetDispatchQueueT();
nub_addr_t GetTSDAddressForThread (uint64_t plo_pthread_tsd_base_address_offset, uint64_t plo_pthread_tsd_base_offset, uint64_t plo_pthread_tsd_entry_size);
static uint64_t GetGloballyUniqueThreadIDForMachPortID (thread_t mach_port_id);
protected:
static bool GetBasicInfo(thread_t threadID, struct thread_basic_info *basic_info);
bool
GetIdentifierInfo ();
// const char *
// GetDispatchQueueName();
//
MachProcess * m_process; // The process that owns this thread
uint64_t m_unique_id; // The globally unique ID for this thread (nub_thread_t)
thread_t m_mach_port_number; // The mach port # for this thread in debugserver namesp.
uint32_t m_seq_id; // A Sequential ID that increments with each new thread
nub_state_t m_state; // The state of our process
PThreadMutex m_state_mutex; // Multithreaded protection for m_state
struct thread_basic_info m_basic_info; // Basic information for a thread used to see if a thread is valid
int32_t m_suspend_count; // The current suspend count > 0 means we have suspended m_suspendCount times,
// < 0 means we have resumed it m_suspendCount times.
MachException::Data m_stop_exception; // The best exception that describes why this thread is stopped
std::unique_ptr<DNBArchProtocol> m_arch_ap; // Arch specific information for register state and more
const DNBRegisterSetInfo * m_reg_sets; // Register set information for this thread
nub_size_t m_num_reg_sets;
thread_identifier_info_data_t m_ident_info;
struct proc_threadinfo m_proc_threadinfo;
std::string m_dispatch_queue_name;
bool m_is_64_bit;
// qos_class_t _pthread_qos_class_decode(pthread_priority_t priority, int *, unsigned long *);
unsigned int (*m_pthread_qos_class_decode) (unsigned long priority, int*, unsigned long *);
private:
friend class MachThreadList;
};
typedef std::shared_ptr<MachThread> MachThreadSP;
#endif
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