a9b68f4dd6
the watchpoint state is changed, not only does the change propagate to all the thread instances, it also updates a global debug state, if chosen by the DNBArchProtocol derivative. Once implemented, the DNBArchProtocol derivative, also makes sure that when new thread comes along, it tries to inherit from the global debug state, if it is valid. Modify TestWatchpointMultipleThreads.py to test this functionality. llvm-svn: 140811
143 lines
5.9 KiB
C++
143 lines
5.9 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 <tr1/memory> // for std::tr1::shared_ptr
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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, thread_t thread = 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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thread_t ThreadID() const { return m_tid; }
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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(thread_t thread);
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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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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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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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thread_t m_tid; // The thread port for this thread
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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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#ifdef THREAD_IDENTIFIER_INFO_COUNT
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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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#endif
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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::tr1::shared_ptr<MachThread> MachThreadSP;
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#endif
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