1257752Semaste//===-- RegisterContextPOSIXProcessMonitor_mips64.h ------------*- C++ -*-===// 2257752Semaste// 3257752Semaste// The LLVM Compiler Infrastructure 4257752Semaste// 5257752Semaste// This file is distributed under the University of Illinois Open Source 6257752Semaste// License. See LICENSE.TXT for details. 7257752Semaste// 8257752Semaste//===---------------------------------------------------------------------===// 9257752Semaste 10257752Semaste#include "lldb/Target/Thread.h" 11257752Semaste#include "lldb/Core/RegisterValue.h" 12257752Semaste 13257752Semaste#include "RegisterContextPOSIX_mips64.h" 14257752Semaste#include "ProcessPOSIX.h" 15257752Semaste#include "RegisterContextPOSIXProcessMonitor_mips64.h" 16257752Semaste#include "ProcessMonitor.h" 17257752Semaste 18257752Semasteusing namespace lldb_private; 19257752Semasteusing namespace lldb; 20257752Semaste 21257752Semaste#define REG_CONTEXT_SIZE (GetGPRSize()) 22257752Semaste 23257752SemasteRegisterContextPOSIXProcessMonitor_mips64::RegisterContextPOSIXProcessMonitor_mips64(Thread &thread, 24257752Semaste uint32_t concrete_frame_idx, 25257752Semaste RegisterInfoInterface *register_info) 26257752Semaste : RegisterContextPOSIX_mips64(thread, concrete_frame_idx, register_info) 27257752Semaste{ 28257752Semaste} 29257752Semaste 30257752SemasteProcessMonitor & 31257752SemasteRegisterContextPOSIXProcessMonitor_mips64::GetMonitor() 32257752Semaste{ 33257752Semaste ProcessSP base = CalculateProcess(); 34257752Semaste ProcessPOSIX *process = static_cast<ProcessPOSIX*>(base.get()); 35257752Semaste return process->GetMonitor(); 36257752Semaste} 37257752Semaste 38257752Semastebool 39257752SemasteRegisterContextPOSIXProcessMonitor_mips64::ReadGPR() 40257752Semaste{ 41257752Semaste ProcessMonitor &monitor = GetMonitor(); 42257752Semaste return monitor.ReadGPR(m_thread.GetID(), &m_gpr_mips64, GetGPRSize()); 43257752Semaste} 44257752Semaste 45257752Semastebool 46257752SemasteRegisterContextPOSIXProcessMonitor_mips64::ReadFPR() 47257752Semaste{ 48257752Semaste // XXX not yet implemented 49257752Semaste return false; 50257752Semaste} 51257752Semaste 52257752Semastebool 53257752SemasteRegisterContextPOSIXProcessMonitor_mips64::WriteGPR() 54257752Semaste{ 55257752Semaste ProcessMonitor &monitor = GetMonitor(); 56257752Semaste return monitor.WriteGPR(m_thread.GetID(), &m_gpr_mips64, GetGPRSize()); 57257752Semaste} 58257752Semaste 59257752Semastebool 60257752SemasteRegisterContextPOSIXProcessMonitor_mips64::WriteFPR() 61257752Semaste{ 62257752Semaste // XXX not yet implemented 63257752Semaste return false; 64257752Semaste} 65257752Semaste 66257752Semastebool 67257752SemasteRegisterContextPOSIXProcessMonitor_mips64::ReadRegister(const unsigned reg, 68257752Semaste RegisterValue &value) 69257752Semaste{ 70257752Semaste ProcessMonitor &monitor = GetMonitor(); 71257752Semaste return monitor.ReadRegisterValue(m_thread.GetID(), 72257752Semaste GetRegisterOffset(reg), 73257752Semaste GetRegisterName(reg), 74257752Semaste GetRegisterSize(reg), 75257752Semaste value); 76257752Semaste} 77257752Semaste 78257752Semastebool 79257752SemasteRegisterContextPOSIXProcessMonitor_mips64::WriteRegister(const unsigned reg, 80257752Semaste const RegisterValue &value) 81257752Semaste{ 82257752Semaste unsigned reg_to_write = reg; 83257752Semaste RegisterValue value_to_write = value; 84257752Semaste 85257752Semaste // Check if this is a subregister of a full register. 86257752Semaste const RegisterInfo *reg_info = GetRegisterInfoAtIndex(reg); 87257752Semaste if (reg_info->invalidate_regs && (reg_info->invalidate_regs[0] != LLDB_INVALID_REGNUM)) 88257752Semaste { 89257752Semaste RegisterValue full_value; 90257752Semaste uint32_t full_reg = reg_info->invalidate_regs[0]; 91257752Semaste const RegisterInfo *full_reg_info = GetRegisterInfoAtIndex(full_reg); 92257752Semaste 93257752Semaste // Read the full register. 94257752Semaste if (ReadRegister(full_reg_info, full_value)) 95257752Semaste { 96257752Semaste Error error; 97257752Semaste ByteOrder byte_order = GetByteOrder(); 98257752Semaste uint8_t dst[RegisterValue::kMaxRegisterByteSize]; 99257752Semaste 100257752Semaste // Get the bytes for the full register. 101257752Semaste const uint32_t dest_size = full_value.GetAsMemoryData (full_reg_info, 102257752Semaste dst, 103257752Semaste sizeof(dst), 104257752Semaste byte_order, 105257752Semaste error); 106257752Semaste if (error.Success() && dest_size) 107257752Semaste { 108257752Semaste uint8_t src[RegisterValue::kMaxRegisterByteSize]; 109257752Semaste 110257752Semaste // Get the bytes for the source data. 111257752Semaste const uint32_t src_size = value.GetAsMemoryData (reg_info, src, sizeof(src), byte_order, error); 112257752Semaste if (error.Success() && src_size && (src_size < dest_size)) 113257752Semaste { 114257752Semaste // Copy the src bytes to the destination. 115257752Semaste memcpy (dst + (reg_info->byte_offset & 0x1), src, src_size); 116257752Semaste // Set this full register as the value to write. 117257752Semaste value_to_write.SetBytes(dst, full_value.GetByteSize(), byte_order); 118257752Semaste value_to_write.SetType(full_reg_info); 119257752Semaste reg_to_write = full_reg; 120257752Semaste } 121257752Semaste } 122257752Semaste } 123257752Semaste } 124257752Semaste 125257752Semaste ProcessMonitor &monitor = GetMonitor(); 126257752Semaste return monitor.WriteRegisterValue(m_thread.GetID(), 127257752Semaste GetRegisterOffset(reg_to_write), 128257752Semaste GetRegisterName(reg_to_write), 129257752Semaste value_to_write); 130257752Semaste} 131257752Semaste 132257752Semastebool 133257752SemasteRegisterContextPOSIXProcessMonitor_mips64::ReadRegister(const RegisterInfo *reg_info, RegisterValue &value) 134257752Semaste{ 135257752Semaste if (!reg_info) 136257752Semaste return false; 137257752Semaste 138257752Semaste const uint32_t reg = reg_info->kinds[eRegisterKindLLDB]; 139257752Semaste 140257752Semaste if (IsFPR(reg)) 141257752Semaste { 142257752Semaste if (!ReadFPR()) 143257752Semaste return false; 144257752Semaste } 145257752Semaste else 146257752Semaste { 147257752Semaste uint32_t full_reg = reg; 148257752Semaste bool is_subreg = reg_info->invalidate_regs && (reg_info->invalidate_regs[0] != LLDB_INVALID_REGNUM); 149257752Semaste 150257752Semaste if (is_subreg) 151257752Semaste { 152257752Semaste // Read the full aligned 64-bit register. 153257752Semaste full_reg = reg_info->invalidate_regs[0]; 154257752Semaste } 155257752Semaste 156257752Semaste bool success = ReadRegister(full_reg, value); 157257752Semaste 158257752Semaste if (success) 159257752Semaste { 160257752Semaste // If our read was not aligned (for ah,bh,ch,dh), shift our returned value one byte to the right. 161257752Semaste if (is_subreg && (reg_info->byte_offset & 0x1)) 162257752Semaste value.SetUInt64(value.GetAsUInt64() >> 8); 163257752Semaste 164257752Semaste // If our return byte size was greater than the return value reg size, then 165257752Semaste // use the type specified by reg_info rather than the uint64_t default 166257752Semaste if (value.GetByteSize() > reg_info->byte_size) 167257752Semaste value.SetType(reg_info); 168257752Semaste } 169257752Semaste return success; 170257752Semaste } 171257752Semaste 172257752Semaste return false; 173257752Semaste} 174257752Semaste 175257752Semastebool 176257752SemasteRegisterContextPOSIXProcessMonitor_mips64::WriteRegister(const RegisterInfo *reg_info, const RegisterValue &value) 177257752Semaste{ 178257752Semaste const uint32_t reg = reg_info->kinds[eRegisterKindLLDB]; 179257752Semaste 180257752Semaste if (IsGPR(reg)) 181257752Semaste return WriteRegister(reg, value); 182257752Semaste 183257752Semaste return false; 184257752Semaste} 185257752Semaste 186257752Semastebool 187257752SemasteRegisterContextPOSIXProcessMonitor_mips64::ReadAllRegisterValues(DataBufferSP &data_sp) 188257752Semaste{ 189257752Semaste bool success = false; 190257752Semaste data_sp.reset (new DataBufferHeap (REG_CONTEXT_SIZE, 0)); 191257752Semaste if (data_sp && ReadGPR () && ReadFPR ()) 192257752Semaste { 193257752Semaste uint8_t *dst = data_sp->GetBytes(); 194257752Semaste success = dst != 0; 195257752Semaste 196257752Semaste if (success) 197257752Semaste { 198257752Semaste ::memcpy (dst, &m_gpr_mips64, GetGPRSize()); 199257752Semaste dst += GetGPRSize(); 200257752Semaste } 201257752Semaste } 202257752Semaste return success; 203257752Semaste} 204257752Semaste 205257752Semastebool 206257752SemasteRegisterContextPOSIXProcessMonitor_mips64::WriteAllRegisterValues(const DataBufferSP &data_sp) 207257752Semaste{ 208257752Semaste bool success = false; 209257752Semaste if (data_sp && data_sp->GetByteSize() == REG_CONTEXT_SIZE) 210257752Semaste { 211257752Semaste uint8_t *src = data_sp->GetBytes(); 212257752Semaste if (src) 213257752Semaste { 214257752Semaste ::memcpy (&m_gpr_mips64, src, GetGPRSize()); 215257752Semaste 216257752Semaste if (WriteGPR()) 217257752Semaste { 218257752Semaste src += GetGPRSize(); 219257752Semaste } 220257752Semaste } 221257752Semaste } 222257752Semaste return success; 223257752Semaste} 224257752Semaste 225257752Semasteuint32_t 226257752SemasteRegisterContextPOSIXProcessMonitor_mips64::SetHardwareWatchpoint(addr_t addr, size_t size, 227257752Semaste bool read, bool write) 228257752Semaste{ 229257752Semaste const uint32_t num_hw_watchpoints = NumSupportedHardwareWatchpoints(); 230257752Semaste uint32_t hw_index; 231257752Semaste 232257752Semaste for (hw_index = 0; hw_index < num_hw_watchpoints; ++hw_index) 233257752Semaste { 234257752Semaste if (IsWatchpointVacant(hw_index)) 235257752Semaste return SetHardwareWatchpointWithIndex(addr, size, 236257752Semaste read, write, 237257752Semaste hw_index); 238257752Semaste } 239257752Semaste 240257752Semaste return LLDB_INVALID_INDEX32; 241257752Semaste} 242257752Semaste 243257752Semastebool 244257752SemasteRegisterContextPOSIXProcessMonitor_mips64::ClearHardwareWatchpoint(uint32_t hw_index) 245257752Semaste{ 246257752Semaste return false; 247257752Semaste} 248257752Semaste 249257752Semastebool 250257752SemasteRegisterContextPOSIXProcessMonitor_mips64::HardwareSingleStep(bool enable) 251257752Semaste{ 252257752Semaste return false; 253257752Semaste} 254257752Semaste 255257752Semastebool 256257752SemasteRegisterContextPOSIXProcessMonitor_mips64::UpdateAfterBreakpoint() 257257752Semaste{ 258257752Semaste // PC points one byte past the int3 responsible for the breakpoint. 259257752Semaste lldb::addr_t pc; 260257752Semaste 261257752Semaste if ((pc = GetPC()) == LLDB_INVALID_ADDRESS) 262257752Semaste return false; 263257752Semaste 264257752Semaste SetPC(pc - 1); 265257752Semaste return true; 266257752Semaste} 267257752Semaste 268257752Semasteunsigned 269257752SemasteRegisterContextPOSIXProcessMonitor_mips64::GetRegisterIndexFromOffset(unsigned offset) 270257752Semaste{ 271257752Semaste unsigned reg; 272257752Semaste for (reg = 0; reg < k_num_registers_mips64; reg++) 273257752Semaste { 274257752Semaste if (GetRegisterInfo()[reg].byte_offset == offset) 275257752Semaste break; 276257752Semaste } 277257752Semaste assert(reg < k_num_registers_mips64 && "Invalid register offset."); 278257752Semaste return reg; 279257752Semaste} 280257752Semaste 281257752Semastebool 282257752SemasteRegisterContextPOSIXProcessMonitor_mips64::IsWatchpointHit(uint32_t hw_index) 283257752Semaste{ 284257752Semaste return false; 285257752Semaste} 286257752Semaste 287257752Semastebool 288257752SemasteRegisterContextPOSIXProcessMonitor_mips64::ClearWatchpointHits() 289257752Semaste{ 290257752Semaste return false; 291257752Semaste} 292257752Semaste 293257752Semasteaddr_t 294257752SemasteRegisterContextPOSIXProcessMonitor_mips64::GetWatchpointAddress(uint32_t hw_index) 295257752Semaste{ 296257752Semaste return LLDB_INVALID_ADDRESS; 297257752Semaste} 298257752Semaste 299257752Semastebool 300257752SemasteRegisterContextPOSIXProcessMonitor_mips64::IsWatchpointVacant(uint32_t hw_index) 301257752Semaste{ 302257752Semaste return false; 303257752Semaste} 304257752Semaste 305257752Semastebool 306257752SemasteRegisterContextPOSIXProcessMonitor_mips64::SetHardwareWatchpointWithIndex(addr_t addr, size_t size, 307257752Semaste bool read, bool write, 308257752Semaste uint32_t hw_index) 309257752Semaste{ 310257752Semaste return false; 311257752Semaste} 312257752Semaste 313257752Semasteuint32_t 314257752SemasteRegisterContextPOSIXProcessMonitor_mips64::NumSupportedHardwareWatchpoints() 315257752Semaste{ 316257752Semaste return 0; 317257752Semaste} 318257752Semaste 319