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usr / src / contrib / llvm-project / lldb / source / Plugins / Process / Utility /

📁 ..
📄 ARMDefines.h(6.17 KB)
📄 ARMUtils.h(10.38 KB)
📄 AuxVector.cpp(3.61 KB)
📄 AuxVector.h(3 KB)
📄 DynamicRegisterInfo.cpp(29.35 KB)
📄 DynamicRegisterInfo.h(3.3 KB)
📄 FreeBSDSignals.cpp(5.48 KB)
📄 FreeBSDSignals.h(802 B)
📄 GDBRemoteSignals.cpp(648 B)
📄 GDBRemoteSignals.h(893 B)
📄 HistoryThread.cpp(2.79 KB)
📄 HistoryThread.h(2.87 KB)
📄 HistoryUnwind.cpp(2.27 KB)
📄 HistoryUnwind.h(1.42 KB)
📄 InferiorCallPOSIX.cpp(6.44 KB)
📄 InferiorCallPOSIX.h(1.09 KB)
📄 InstructionUtils.h(4.01 KB)
📄 LinuxProcMaps.cpp(4.35 KB)
📄 LinuxProcMaps.h(954 B)
📄 LinuxSignals.cpp(5.43 KB)
📄 LinuxSignals.h(790 B)
📄 MipsLinuxSignals.cpp(5.46 KB)
📄 MipsLinuxSignals.h(816 B)
📄 NativeRegisterContextRegisterInfo.cpp(1.48 KB)
📄 NativeRegisterContextRegisterInfo.h(1.31 KB)
📄 NetBSDSignals.cpp(3.09 KB)
📄 NetBSDSignals.h(795 B)
📄 RegisterContextDarwinConstants.h(852 B)
📄 RegisterContextDarwin_arm.cpp(41.55 KB)
📄 RegisterContextDarwin_arm.h(6.99 KB)
📄 RegisterContextDarwin_arm64.cpp(27.29 KB)
📄 RegisterContextDarwin_arm64.h(6.31 KB)
📄 RegisterContextDarwin_i386.cpp(23.66 KB)
📄 RegisterContextDarwin_i386.h(5.08 KB)
📄 RegisterContextDarwin_x86_64.cpp(26.65 KB)
📄 RegisterContextDarwin_x86_64.h(5.28 KB)
📄 RegisterContextDummy.cpp(3.78 KB)
📄 RegisterContextDummy.h(2.16 KB)
📄 RegisterContextFreeBSD_i386.cpp(2.15 KB)
📄 RegisterContextFreeBSD_i386.h(886 B)
📄 RegisterContextFreeBSD_mips64.cpp(3.43 KB)
📄 RegisterContextFreeBSD_mips64.h(1007 B)
📄 RegisterContextFreeBSD_powerpc.cpp(5.29 KB)
📄 RegisterContextFreeBSD_powerpc.h(1.74 KB)
📄 RegisterContextFreeBSD_x86_64.cpp(4.27 KB)
📄 RegisterContextFreeBSD_x86_64.h(998 B)
📄 RegisterContextHistory.cpp(3.9 KB)
📄 RegisterContextHistory.h(2.23 KB)
📄 RegisterContextLinux_i386.cpp(4.5 KB)
📄 RegisterContextLinux_i386.h(1.07 KB)
📄 RegisterContextLinux_mips.cpp(5.82 KB)
📄 RegisterContextLinux_mips.h(1.14 KB)
📄 RegisterContextLinux_mips64.cpp(7.67 KB)
📄 RegisterContextLinux_mips64.h(1.24 KB)
📄 RegisterContextLinux_s390x.cpp(2.33 KB)
📄 RegisterContextLinux_s390x.h(1.19 KB)
📄 RegisterContextLinux_x86_64.cpp(6.19 KB)
📄 RegisterContextLinux_x86_64.h(1.2 KB)
📄 RegisterContextMach_arm.cpp(2.59 KB)
📄 RegisterContextMach_arm.h(1.32 KB)
📄 RegisterContextMach_i386.cpp(2.13 KB)
📄 RegisterContextMach_i386.h(1.21 KB)
📄 RegisterContextMach_x86_64.cpp(2.24 KB)
📄 RegisterContextMach_x86_64.h(1.24 KB)
📄 RegisterContextMemory.cpp(4.75 KB)
📄 RegisterContextMemory.h(2.71 KB)
📄 RegisterContextNetBSD_i386.cpp(2.87 KB)
📄 RegisterContextNetBSD_i386.h(882 B)
📄 RegisterContextNetBSD_x86_64.cpp(5.49 KB)
📄 RegisterContextNetBSD_x86_64.h(1.06 KB)
📄 RegisterContextOpenBSD_i386.cpp(2.07 KB)
📄 RegisterContextOpenBSD_i386.h(886 B)
📄 RegisterContextOpenBSD_x86_64.cpp(2.78 KB)
📄 RegisterContextOpenBSD_x86_64.h(998 B)
📄 RegisterContextPOSIX_arm.cpp(6.62 KB)
📄 RegisterContextPOSIX_arm.h(2.87 KB)
📄 RegisterContextPOSIX_arm64.cpp(3.03 KB)
📄 RegisterContextPOSIX_arm64.h(2.3 KB)
📄 RegisterContextPOSIX_mips64.cpp(5.75 KB)
📄 RegisterContextPOSIX_mips64.h(2.41 KB)
📄 RegisterContextPOSIX_powerpc.cpp(5.91 KB)
📄 RegisterContextPOSIX_powerpc.h(4.75 KB)
📄 RegisterContextPOSIX_ppc64le.cpp(7.28 KB)
📄 RegisterContextPOSIX_ppc64le.h(2.27 KB)
📄 RegisterContextPOSIX_s390x.cpp(5.67 KB)
📄 RegisterContextPOSIX_s390x.h(2.08 KB)
📄 RegisterContextPOSIX_x86.cpp(22.13 KB)
📄 RegisterContextPOSIX_x86.h(5.31 KB)
📄 RegisterContextThreadMemory.cpp(6.75 KB)
📄 RegisterContextThreadMemory.h(3.71 KB)
📄 RegisterContextWindows_i386.cpp(4.35 KB)
📄 RegisterContextWindows_i386.h(937 B)
📄 RegisterContextWindows_x86_64.cpp(6.78 KB)
📄 RegisterContextWindows_x86_64.h(949 B)
📄 RegisterContext_mips.h(6.85 KB)
📄 RegisterContext_powerpc.h(2.82 KB)
📄 RegisterContext_s390x.h(2.04 KB)
📄 RegisterContext_x86.h(9.61 KB)
📄 RegisterInfoAndSetInterface.h(1.14 KB)
📄 RegisterInfoInterface.h(2.28 KB)
📄 RegisterInfoPOSIX_arm.cpp(3.51 KB)
📄 RegisterInfoPOSIX_arm.h(1.58 KB)
📄 RegisterInfoPOSIX_arm64.cpp(7.83 KB)
📄 RegisterInfoPOSIX_arm64.h(2.27 KB)
📄 RegisterInfoPOSIX_ppc64le.cpp(1.95 KB)
📄 RegisterInfoPOSIX_ppc64le.h(1.02 KB)
📄 RegisterInfos_arm.h(37.11 KB)
📄 RegisterInfos_arm64.h(28.46 KB)
📄 RegisterInfos_i386.h(15.93 KB)
📄 RegisterInfos_mips.h(16.18 KB)
📄 RegisterInfos_mips64.h(23.21 KB)
📄 RegisterInfos_powerpc.h(14.8 KB)
📄 RegisterInfos_ppc64.h(16.62 KB)
📄 RegisterInfos_ppc64le.h(23.77 KB)
📄 RegisterInfos_s390x.h(6.47 KB)
📄 RegisterInfos_x86_64.h(24.31 KB)
📄 StopInfoMachException.cpp(16.87 KB)
📄 StopInfoMachException.h(1.78 KB)
📄 ThreadMemory.cpp(3.04 KB)
📄 ThreadMemory.h(3.22 KB)
📄 lldb-arm-register-enums.h(3.56 KB)
📄 lldb-arm64-register-enums.h(4.87 KB)
📄 lldb-mips-freebsd-register-enums.h(1.62 KB)
📄 lldb-mips-linux-register-enums.h(7.25 KB)
📄 lldb-ppc64-register-enums.h(2.91 KB)
📄 lldb-ppc64le-register-enums.h(4.63 KB)
📄 lldb-s390x-register-enums.h(2.31 KB)
📄 lldb-x86-register-enums.h(7.93 KB)

Editing: RegisterContextMemory.cpp

//===-- RegisterContextMemory.cpp -----------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#include "RegisterContextMemory.h"

#include "DynamicRegisterInfo.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/Thread.h"
#include "lldb/Utility/DataBufferHeap.h"
#include "lldb/Utility/RegisterValue.h"
#include "lldb/Utility/Status.h"

using namespace lldb;
using namespace lldb_private;

// RegisterContextMemory constructor
RegisterContextMemory::RegisterContextMemory(Thread &thread,
                                             uint32_t concrete_frame_idx,
                                             DynamicRegisterInfo &reg_infos,
                                             addr_t reg_data_addr)
    : RegisterContext(thread, concrete_frame_idx), m_reg_infos(reg_infos),
      m_reg_valid(), m_reg_data(), m_reg_data_addr(reg_data_addr) {
  // Resize our vector of bools to contain one bool for every register. We will
  // use these boolean values to know when a register value is valid in
  // m_reg_data.
  const size_t num_regs = reg_infos.GetNumRegisters();
  assert(num_regs > 0);
  m_reg_valid.resize(num_regs);

// Make a heap based buffer that is big enough to store all registers
  DataBufferSP reg_data_sp(
      new DataBufferHeap(reg_infos.GetRegisterDataByteSize(), 0));
  m_reg_data.SetData(reg_data_sp);
}

// Destructor
RegisterContextMemory::~RegisterContextMemory() {}

void RegisterContextMemory::InvalidateAllRegisters() {
  if (m_reg_data_addr != LLDB_INVALID_ADDRESS)
    SetAllRegisterValid(false);
}

void RegisterContextMemory::SetAllRegisterValid(bool b) {
  std::vector<bool>::iterator pos, end = m_reg_valid.end();
  for (pos = m_reg_valid.begin(); pos != end; ++pos)
    *pos = b;
}

size_t RegisterContextMemory::GetRegisterCount() {
  return m_reg_infos.GetNumRegisters();
}

const RegisterInfo *RegisterContextMemory::GetRegisterInfoAtIndex(size_t reg) {
  return m_reg_infos.GetRegisterInfoAtIndex(reg);
}

size_t RegisterContextMemory::GetRegisterSetCount() {
  return m_reg_infos.GetNumRegisterSets();
}

const RegisterSet *RegisterContextMemory::GetRegisterSet(size_t reg_set) {
  return m_reg_infos.GetRegisterSet(reg_set);
}

uint32_t RegisterContextMemory::ConvertRegisterKindToRegisterNumber(
    lldb::RegisterKind kind, uint32_t num) {
  return m_reg_infos.ConvertRegisterKindToRegisterNumber(kind, num);
}

bool RegisterContextMemory::ReadRegister(const RegisterInfo *reg_info,
                                         RegisterValue &reg_value) {
  const uint32_t reg_num = reg_info->kinds[eRegisterKindLLDB];
  if (!m_reg_valid[reg_num]) {
    if (!ReadAllRegisterValues(m_reg_data.GetSharedDataBuffer()))
      return false;
  }
  const bool partial_data_ok = false;
  return reg_value
      .SetValueFromData(reg_info, m_reg_data, reg_info->byte_offset,
                        partial_data_ok)
      .Success();
}

bool RegisterContextMemory::WriteRegister(const RegisterInfo *reg_info,
                                          const RegisterValue &reg_value) {
  if (m_reg_data_addr != LLDB_INVALID_ADDRESS) {
    const uint32_t reg_num = reg_info->kinds[eRegisterKindLLDB];
    addr_t reg_addr = m_reg_data_addr + reg_info->byte_offset;
    Status error(WriteRegisterValueToMemory(reg_info, reg_addr,
                                            reg_info->byte_size, reg_value));
    m_reg_valid[reg_num] = false;
    return error.Success();
  }
  return false;
}

bool RegisterContextMemory::ReadAllRegisterValues(DataBufferSP &data_sp) {
  if (m_reg_data_addr != LLDB_INVALID_ADDRESS) {
    ProcessSP process_sp(CalculateProcess());
    if (process_sp) {
      Status error;
      if (process_sp->ReadMemory(m_reg_data_addr, data_sp->GetBytes(),
                                 data_sp->GetByteSize(),
                                 error) == data_sp->GetByteSize()) {
        SetAllRegisterValid(true);
        return true;
      }
    }
  }
  return false;
}

bool RegisterContextMemory::WriteAllRegisterValues(
    const DataBufferSP &data_sp) {
  if (m_reg_data_addr != LLDB_INVALID_ADDRESS) {
    ProcessSP process_sp(CalculateProcess());
    if (process_sp) {
      Status error;
      SetAllRegisterValid(false);
      if (process_sp->WriteMemory(m_reg_data_addr, data_sp->GetBytes(),
                                  data_sp->GetByteSize(),
                                  error) == data_sp->GetByteSize())
        return true;
    }
  }
  return false;
}

void RegisterContextMemory::SetAllRegisterData(
    const lldb::DataBufferSP &data_sp) {
  m_reg_data.SetData(data_sp);
  SetAllRegisterValid(true);
}

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Editing: RegisterContextMemory.cpp

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