Greg Clayton | a46013b | 2013-05-01 21:54:04 +0000 | [diff] [blame] | 1 | //===-- RegisterContextThreadMemory.cpp -------------------------*- 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 | #include "lldb/lldb-private.h" |
| 11 | #include "lldb/Core/Error.h" |
| 12 | #include "lldb/Target/OperatingSystem.h" |
| 13 | #include "lldb/Target/Process.h" |
| 14 | #include "lldb/Target/Thread.h" |
| 15 | |
| 16 | #include "RegisterContextThreadMemory.h" |
| 17 | |
| 18 | using namespace lldb; |
| 19 | using namespace lldb_private; |
| 20 | |
| 21 | RegisterContextThreadMemory::RegisterContextThreadMemory (Thread &thread, |
| 22 | lldb::addr_t register_data_addr) : |
| 23 | RegisterContext (thread, 0), |
| 24 | m_thread_wp (thread.shared_from_this()), |
| 25 | m_reg_ctx_sp (), |
| 26 | m_register_data_addr (register_data_addr), |
| 27 | m_stop_id(0) |
| 28 | { |
| 29 | } |
| 30 | |
| 31 | RegisterContextThreadMemory::~RegisterContextThreadMemory() |
| 32 | { |
| 33 | } |
| 34 | |
| 35 | void |
| 36 | RegisterContextThreadMemory::UpdateRegisterContext () |
| 37 | { |
| 38 | ThreadSP thread_sp (m_thread_wp.lock()); |
| 39 | if (thread_sp) |
| 40 | { |
| 41 | ProcessSP process_sp (thread_sp->GetProcess()); |
| 42 | |
| 43 | if (process_sp) |
| 44 | { |
| 45 | const uint32_t stop_id = process_sp->GetModID().GetStopID(); |
| 46 | if (m_stop_id != stop_id) |
| 47 | { |
| 48 | m_stop_id = stop_id; |
| 49 | m_reg_ctx_sp.reset(); |
| 50 | } |
| 51 | if (!m_reg_ctx_sp) |
| 52 | { |
Greg Clayton | a946795 | 2013-05-02 04:15:24 +0000 | [diff] [blame] | 53 | ThreadSP backing_thread_sp (thread_sp->GetBackingThread()); |
| 54 | if (backing_thread_sp) |
| 55 | { |
| 56 | m_reg_ctx_sp = backing_thread_sp->GetRegisterContext(); |
| 57 | } |
Greg Clayton | a46013b | 2013-05-01 21:54:04 +0000 | [diff] [blame] | 58 | else |
| 59 | { |
Greg Clayton | a946795 | 2013-05-02 04:15:24 +0000 | [diff] [blame] | 60 | OperatingSystem *os = process_sp->GetOperatingSystem (); |
| 61 | if (os->IsOperatingSystemPluginThread (thread_sp)) |
| 62 | m_reg_ctx_sp = os->CreateRegisterContextForThread (thread_sp.get(), LLDB_INVALID_ADDRESS); |
| 63 | } |
Greg Clayton | a46013b | 2013-05-01 21:54:04 +0000 | [diff] [blame] | 64 | } |
| 65 | } |
| 66 | } |
| 67 | else |
| 68 | { |
| 69 | m_reg_ctx_sp.reset(); |
| 70 | } |
| 71 | } |
| 72 | |
| 73 | //------------------------------------------------------------------ |
| 74 | // Subclasses must override these functions |
| 75 | //------------------------------------------------------------------ |
| 76 | void |
| 77 | RegisterContextThreadMemory::InvalidateAllRegisters () |
| 78 | { |
| 79 | UpdateRegisterContext (); |
| 80 | if (m_reg_ctx_sp) |
| 81 | m_reg_ctx_sp->InvalidateAllRegisters(); |
| 82 | } |
| 83 | |
| 84 | size_t |
| 85 | RegisterContextThreadMemory::GetRegisterCount () |
| 86 | { |
| 87 | UpdateRegisterContext (); |
| 88 | if (m_reg_ctx_sp) |
| 89 | return m_reg_ctx_sp->GetRegisterCount(); |
| 90 | return 0; |
| 91 | } |
| 92 | |
| 93 | const RegisterInfo * |
| 94 | RegisterContextThreadMemory::GetRegisterInfoAtIndex (size_t reg) |
| 95 | { |
| 96 | UpdateRegisterContext (); |
| 97 | if (m_reg_ctx_sp) |
| 98 | return m_reg_ctx_sp->GetRegisterInfoAtIndex(reg); |
| 99 | return NULL; |
| 100 | } |
| 101 | |
| 102 | size_t |
| 103 | RegisterContextThreadMemory::GetRegisterSetCount () |
| 104 | { |
| 105 | UpdateRegisterContext (); |
| 106 | if (m_reg_ctx_sp) |
| 107 | return m_reg_ctx_sp->GetRegisterSetCount(); |
| 108 | return 0; |
| 109 | } |
| 110 | |
| 111 | const RegisterSet * |
| 112 | RegisterContextThreadMemory::GetRegisterSet (size_t reg_set) |
| 113 | { |
| 114 | UpdateRegisterContext (); |
| 115 | if (m_reg_ctx_sp) |
| 116 | return m_reg_ctx_sp->GetRegisterSet(reg_set); |
| 117 | return NULL; |
| 118 | } |
| 119 | |
| 120 | bool |
| 121 | RegisterContextThreadMemory::ReadRegister (const RegisterInfo *reg_info, RegisterValue ®_value) |
| 122 | { |
| 123 | UpdateRegisterContext (); |
| 124 | if (m_reg_ctx_sp) |
| 125 | return m_reg_ctx_sp->ReadRegister(reg_info, reg_value); |
| 126 | return false; |
| 127 | } |
| 128 | |
| 129 | bool |
| 130 | RegisterContextThreadMemory::WriteRegister (const RegisterInfo *reg_info, const RegisterValue ®_value) |
| 131 | { |
| 132 | UpdateRegisterContext (); |
| 133 | if (m_reg_ctx_sp) |
| 134 | return m_reg_ctx_sp->WriteRegister (reg_info, reg_value); |
| 135 | return false; |
| 136 | } |
| 137 | |
| 138 | bool |
| 139 | RegisterContextThreadMemory::ReadAllRegisterValues (lldb::DataBufferSP &data_sp) |
| 140 | { |
| 141 | UpdateRegisterContext (); |
| 142 | if (m_reg_ctx_sp) |
| 143 | return m_reg_ctx_sp->ReadAllRegisterValues(data_sp); |
| 144 | return false; |
| 145 | } |
| 146 | |
| 147 | bool |
| 148 | RegisterContextThreadMemory::WriteAllRegisterValues (const lldb::DataBufferSP &data_sp) |
| 149 | { |
| 150 | UpdateRegisterContext (); |
| 151 | if (m_reg_ctx_sp) |
| 152 | return m_reg_ctx_sp->WriteAllRegisterValues (data_sp); |
| 153 | return false; |
| 154 | } |
| 155 | |
| 156 | bool |
| 157 | RegisterContextThreadMemory::CopyFromRegisterContext (lldb::RegisterContextSP reg_ctx_sp) |
| 158 | { |
| 159 | UpdateRegisterContext (); |
| 160 | if (m_reg_ctx_sp) |
| 161 | return m_reg_ctx_sp->CopyFromRegisterContext(reg_ctx_sp); |
| 162 | return false; |
| 163 | } |
| 164 | |
| 165 | uint32_t |
| 166 | RegisterContextThreadMemory::ConvertRegisterKindToRegisterNumber (uint32_t kind, uint32_t num) |
| 167 | { |
| 168 | UpdateRegisterContext (); |
| 169 | if (m_reg_ctx_sp) |
| 170 | return m_reg_ctx_sp->ConvertRegisterKindToRegisterNumber(kind, num); |
| 171 | return false; |
| 172 | } |
| 173 | |
| 174 | uint32_t |
| 175 | RegisterContextThreadMemory::NumSupportedHardwareBreakpoints () |
| 176 | { |
| 177 | UpdateRegisterContext (); |
| 178 | if (m_reg_ctx_sp) |
| 179 | return m_reg_ctx_sp->NumSupportedHardwareBreakpoints(); |
| 180 | return false; |
| 181 | } |
| 182 | |
| 183 | uint32_t |
| 184 | RegisterContextThreadMemory::SetHardwareBreakpoint (lldb::addr_t addr, size_t size) |
| 185 | { |
| 186 | UpdateRegisterContext (); |
| 187 | if (m_reg_ctx_sp) |
| 188 | return m_reg_ctx_sp->SetHardwareBreakpoint(addr, size); |
| 189 | return 0; |
| 190 | } |
| 191 | |
| 192 | bool |
| 193 | RegisterContextThreadMemory::ClearHardwareBreakpoint (uint32_t hw_idx) |
| 194 | { |
| 195 | UpdateRegisterContext (); |
| 196 | if (m_reg_ctx_sp) |
| 197 | return m_reg_ctx_sp->ClearHardwareBreakpoint (hw_idx); |
| 198 | return false; |
| 199 | } |
| 200 | |
| 201 | uint32_t |
| 202 | RegisterContextThreadMemory::NumSupportedHardwareWatchpoints () |
| 203 | { |
| 204 | UpdateRegisterContext (); |
| 205 | if (m_reg_ctx_sp) |
| 206 | return m_reg_ctx_sp->NumSupportedHardwareWatchpoints(); |
| 207 | return 0; |
| 208 | } |
| 209 | |
| 210 | uint32_t |
| 211 | RegisterContextThreadMemory::SetHardwareWatchpoint (lldb::addr_t addr, size_t size, bool read, bool write) |
| 212 | { |
| 213 | UpdateRegisterContext (); |
| 214 | if (m_reg_ctx_sp) |
| 215 | return m_reg_ctx_sp->SetHardwareWatchpoint(addr, size, read, write); |
| 216 | return 0; |
| 217 | } |
| 218 | |
| 219 | bool |
| 220 | RegisterContextThreadMemory::ClearHardwareWatchpoint (uint32_t hw_index) |
| 221 | { |
| 222 | UpdateRegisterContext (); |
| 223 | if (m_reg_ctx_sp) |
| 224 | return m_reg_ctx_sp->ClearHardwareWatchpoint(hw_index); |
| 225 | return false; |
| 226 | } |
| 227 | |
| 228 | bool |
| 229 | RegisterContextThreadMemory::HardwareSingleStep (bool enable) |
| 230 | { |
| 231 | UpdateRegisterContext (); |
| 232 | if (m_reg_ctx_sp) |
| 233 | return m_reg_ctx_sp->HardwareSingleStep(enable); |
| 234 | return false; |
| 235 | } |
| 236 | |
| 237 | Error |
| 238 | RegisterContextThreadMemory::ReadRegisterValueFromMemory (const lldb_private::RegisterInfo *reg_info, lldb::addr_t src_addr, uint32_t src_len, RegisterValue ®_value) |
| 239 | { |
| 240 | UpdateRegisterContext (); |
| 241 | if (m_reg_ctx_sp) |
| 242 | return m_reg_ctx_sp->ReadRegisterValueFromMemory (reg_info, src_addr, src_len, reg_value); |
| 243 | Error error; |
| 244 | error.SetErrorString("invalid register context"); |
| 245 | return error; |
| 246 | } |
| 247 | |
| 248 | Error |
| 249 | RegisterContextThreadMemory::WriteRegisterValueToMemory (const lldb_private::RegisterInfo *reg_info, lldb::addr_t dst_addr, uint32_t dst_len, const RegisterValue ®_value) |
| 250 | { |
| 251 | UpdateRegisterContext (); |
| 252 | if (m_reg_ctx_sp) |
| 253 | return m_reg_ctx_sp->WriteRegisterValueToMemory (reg_info, dst_addr, dst_len, reg_value); |
| 254 | Error error; |
| 255 | error.SetErrorString("invalid register context"); |
| 256 | return error; |
| 257 | } |