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