1 //===-- DNBArch.h -----------------------------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // Created by Greg Clayton on 6/24/07.
12 //===----------------------------------------------------------------------===//
14 #ifndef __DebugNubArch_h__
15 #define __DebugNubArch_h__
18 #include "MacOSX/MachException.h"
20 #include <mach/mach.h>
23 struct DNBRegisterValue;
24 struct DNBRegisterSetInfo;
25 class DNBArchProtocol;
28 typedef DNBArchProtocol *(*DNBArchCallbackCreate)(MachThread *thread);
29 typedef const DNBRegisterSetInfo *(*DNBArchCallbackGetRegisterSetInfo)(
30 nub_size_t *num_reg_sets);
31 typedef const uint8_t *(*DNBArchCallbackGetBreakpointOpcode)(
32 nub_size_t byte_size);
34 typedef struct DNBArchPluginInfoTag {
36 DNBArchCallbackCreate Create;
37 DNBArchCallbackGetRegisterSetInfo GetRegisterSetInfo;
38 DNBArchCallbackGetBreakpointOpcode GetBreakpointOpcode;
41 class DNBArchProtocol {
43 static DNBArchProtocol *Create(MachThread *thread);
45 static uint32_t GetRegisterCPUType();
47 static const DNBRegisterSetInfo *GetRegisterSetInfo(nub_size_t *num_reg_sets);
49 static const uint8_t *GetBreakpointOpcode(nub_size_t byte_size);
51 static void RegisterArchPlugin(const DNBArchPluginInfo &arch_info);
53 static uint32_t GetArchitecture();
55 static bool SetArchitecture(uint32_t cpu_type);
57 DNBArchProtocol() : m_save_id(0) {}
59 virtual ~DNBArchProtocol() {}
60 virtual bool GetRegisterValue(uint32_t set, uint32_t reg,
61 DNBRegisterValue *value) = 0;
62 virtual bool SetRegisterValue(uint32_t set, uint32_t reg,
63 const DNBRegisterValue *value) = 0;
64 virtual nub_size_t GetRegisterContext(void *buf, nub_size_t buf_len) = 0;
65 virtual nub_size_t SetRegisterContext(const void *buf,
66 nub_size_t buf_len) = 0;
67 virtual uint32_t SaveRegisterState() = 0;
68 virtual bool RestoreRegisterState(uint32_t save_id) = 0;
70 virtual kern_return_t GetRegisterState(int set, bool force) = 0;
71 virtual kern_return_t SetRegisterState(int set) = 0;
72 virtual bool RegisterSetStateIsValid(int set) const = 0;
74 virtual uint64_t GetPC(uint64_t failValue) = 0; // Get program counter
75 virtual kern_return_t SetPC(uint64_t value) = 0;
76 virtual uint64_t GetSP(uint64_t failValue) = 0; // Get stack pointer
77 virtual void ThreadWillResume() = 0;
78 virtual bool ThreadDidStop() = 0;
79 virtual bool NotifyException(MachException::Data &exc) { return false; }
80 virtual uint32_t NumSupportedHardwareBreakpoints() { return 0; }
81 virtual uint32_t NumSupportedHardwareWatchpoints() { return 0; }
82 virtual uint32_t EnableHardwareBreakpoint(nub_addr_t addr, nub_size_t size) {
83 return INVALID_NUB_HW_INDEX;
85 virtual uint32_t EnableHardwareWatchpoint(nub_addr_t addr, nub_size_t size,
86 bool read, bool write,
87 bool also_set_on_task) {
88 return INVALID_NUB_HW_INDEX;
90 virtual bool DisableHardwareBreakpoint(uint32_t hw_index) { return false; }
91 virtual bool DisableHardwareWatchpoint(uint32_t hw_index,
92 bool also_set_on_task) {
95 virtual uint32_t GetHardwareWatchpointHit(nub_addr_t &addr) {
96 return INVALID_NUB_HW_INDEX;
98 virtual bool StepNotComplete() { return false; }
101 friend class MachThread;
103 uint32_t GetNextRegisterStateSaveID() { return ++m_save_id; }
107 0, // Transaction is pending, and checkpoint state has been snapshotted.
108 Trans_Done = 1, // Transaction is done, the current state is committed, and
109 // checkpoint state is irrelevant.
110 Trans_Rolled_Back = 2 // Transaction is done, the current state has been
111 // rolled back to the checkpoint state.
113 virtual bool StartTransForHWP() { return true; }
114 virtual bool RollbackTransForHWP() { return true; }
115 virtual bool FinishTransForHWP() { return true; }
117 uint32_t m_save_id; // An always incrementing integer ID used with
118 // SaveRegisterState/RestoreRegisterState
121 #include "MacOSX/arm/DNBArchImpl.h"
122 #include "MacOSX/arm64/DNBArchImplARM64.h"
123 #include "MacOSX/i386/DNBArchImplI386.h"
124 #include "MacOSX/ppc/DNBArchImpl.h"
125 #include "MacOSX/x86_64/DNBArchImplX86_64.h"