Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame^] | 1 | //===-- MachThread.h --------------------------------------------*- C++ -*-===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | // |
| 10 | // Created by Greg Clayton on 6/19/07. |
| 11 | // |
| 12 | //===----------------------------------------------------------------------===// |
| 13 | |
| 14 | #ifndef __MachThread_h__ |
| 15 | #define __MachThread_h__ |
| 16 | |
| 17 | #include <string> |
| 18 | #include <vector> |
| 19 | #include <tr1/memory> // for std::tr1::shared_ptr |
| 20 | |
| 21 | #include <libproc.h> |
| 22 | #include <mach/mach.h> |
| 23 | #include <pthread.h> |
| 24 | #include <sys/signal.h> |
| 25 | |
| 26 | #include "PThreadCondition.h" |
| 27 | #include "PThreadMutex.h" |
| 28 | #include "MachException.h" |
| 29 | #include "DNBArch.h" |
| 30 | #include "DNBRegisterInfo.h" |
| 31 | |
| 32 | class DNBBreakpoint; |
| 33 | class MachProcess; |
| 34 | |
| 35 | class MachThread |
| 36 | { |
| 37 | public: |
| 38 | |
| 39 | MachThread (MachProcess *process, thread_t thread = 0); |
| 40 | ~MachThread (); |
| 41 | |
| 42 | MachProcess * Process() { return m_process; } |
| 43 | const MachProcess * |
| 44 | Process() const { return m_process; } |
| 45 | nub_process_t ProcessID() const; |
| 46 | void Dump(uint32_t index); |
| 47 | thread_t ThreadID() const { return m_tid; } |
| 48 | thread_t InferiorThreadID() const; |
| 49 | |
| 50 | uint32_t SequenceID() const { return m_seq_id; } |
| 51 | static bool ThreadIDIsValid(thread_t thread); |
| 52 | uint32_t Resume(); |
| 53 | uint32_t Suspend(); |
| 54 | uint32_t SuspendCount() const { return m_suspendCount; } |
| 55 | bool RestoreSuspendCount(); |
| 56 | |
| 57 | bool GetRegisterState(int flavor, bool force); |
| 58 | bool SetRegisterState(int flavor); |
| 59 | uint64_t GetPC(uint64_t failValue = INVALID_NUB_ADDRESS); // Get program counter |
| 60 | bool SetPC(uint64_t value); // Set program counter |
| 61 | uint64_t GetSP(uint64_t failValue = INVALID_NUB_ADDRESS); // Get stack pointer |
| 62 | |
| 63 | nub_break_t CurrentBreakpoint() const { return m_breakID; } |
| 64 | void SetCurrentBreakpoint(nub_break_t breakID) { m_breakID = breakID; } |
| 65 | uint32_t EnableHardwareBreakpoint (const DNBBreakpoint *breakpoint); |
| 66 | uint32_t EnableHardwareWatchpoint (const DNBBreakpoint *watchpoint); |
| 67 | bool DisableHardwareBreakpoint (const DNBBreakpoint *breakpoint); |
| 68 | bool DisableHardwareWatchpoint (const DNBBreakpoint *watchpoint); |
| 69 | |
| 70 | nub_state_t GetState(); |
| 71 | void SetState(nub_state_t state); |
| 72 | |
| 73 | void ThreadWillResume (const DNBThreadResumeAction *thread_action); |
| 74 | bool ShouldStop(bool &step_more); |
| 75 | bool IsStepping(); |
| 76 | bool ThreadDidStop(); |
| 77 | bool NotifyException(MachException::Data& exc); |
| 78 | const MachException::Data& GetStopException() { return m_stop_exception; } |
| 79 | |
| 80 | uint32_t GetNumRegistersInSet(int regSet) const; |
| 81 | const char * GetRegisterSetName(int regSet) const; |
| 82 | const DNBRegisterInfo * |
| 83 | GetRegisterInfo(int regSet, int regIndex) const; |
| 84 | void DumpRegisterState(int regSet); |
| 85 | const DNBRegisterSetInfo * |
| 86 | GetRegisterSetInfo(nub_size_t *num_reg_sets ) const; |
| 87 | bool GetRegisterValue ( uint32_t reg_set_idx, uint32_t reg_idx, DNBRegisterValue *reg_value ); |
| 88 | bool SetRegisterValue ( uint32_t reg_set_idx, uint32_t reg_idx, const DNBRegisterValue *reg_value ); |
| 89 | nub_size_t GetRegisterContext (void *buf, nub_size_t buf_len); |
| 90 | nub_size_t SetRegisterContext (const void *buf, nub_size_t buf_len); |
| 91 | void NotifyBreakpointChanged (const DNBBreakpoint *bp); |
| 92 | const char * GetBasicInfoAsString () const; |
| 93 | const char * GetName (); |
| 94 | protected: |
| 95 | static bool GetBasicInfo(thread_t threadID, struct thread_basic_info *basic_info); |
| 96 | |
| 97 | bool |
| 98 | GetIdentifierInfo (); |
| 99 | |
| 100 | // const char * |
| 101 | // GetDispatchQueueName(); |
| 102 | // |
| 103 | MachProcess * m_process; // The process that owns this thread |
| 104 | thread_t m_tid; // The thread port for this thread |
| 105 | uint32_t m_seq_id; // A Sequential ID that increments with each new thread |
| 106 | nub_state_t m_state; // The state of our process |
| 107 | PThreadMutex m_state_mutex; // Multithreaded protection for m_state |
| 108 | nub_break_t m_breakID; // Breakpoint that this thread is (stopped)/was(running) at (NULL for none) |
| 109 | struct thread_basic_info m_basicInfo; // Basic information for a thread used to see if a thread is valid |
| 110 | uint32_t m_suspendCount; // The current suspend count |
| 111 | MachException::Data m_stop_exception; // The best exception that describes why this thread is stopped |
| 112 | DNBArch m_arch; // Arch specific information for register state and more |
| 113 | std::vector<DNBRegisterSetInfo> m_regSets; // Register set information for this thread |
| 114 | #ifdef THREAD_IDENTIFIER_INFO_COUNT |
| 115 | thread_identifier_info_data_t m_ident_info; |
| 116 | struct proc_threadinfo m_proc_threadinfo; |
| 117 | std::string m_dispatch_queue_name; |
| 118 | #endif |
| 119 | |
| 120 | }; |
| 121 | |
| 122 | typedef std::tr1::shared_ptr<MachThread> MachThreadSP; |
| 123 | |
| 124 | #endif |