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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: RegisterContextThreadMemory.cpp

//===-- RegisterContextThreadMemory.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 "lldb/Target/OperatingSystem.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/Thread.h"
#include "lldb/Utility/Status.h"
#include "lldb/lldb-private.h"

#include "RegisterContextThreadMemory.h"

using namespace lldb;
using namespace lldb_private;

RegisterContextThreadMemory::RegisterContextThreadMemory(
    Thread &thread, lldb::addr_t register_data_addr)
    : RegisterContext(thread, 0), m_thread_wp(thread.shared_from_this()),
      m_reg_ctx_sp(), m_register_data_addr(register_data_addr), m_stop_id(0) {}

RegisterContextThreadMemory::~RegisterContextThreadMemory() {}

void RegisterContextThreadMemory::UpdateRegisterContext() {
  ThreadSP thread_sp(m_thread_wp.lock());
  if (thread_sp) {
    ProcessSP process_sp(thread_sp->GetProcess());

if (process_sp) {
      const uint32_t stop_id = process_sp->GetModID().GetStopID();
      if (m_stop_id != stop_id) {
        m_stop_id = stop_id;
        m_reg_ctx_sp.reset();
      }
      if (!m_reg_ctx_sp) {
        ThreadSP backing_thread_sp(thread_sp->GetBackingThread());
        if (backing_thread_sp) {
          m_reg_ctx_sp = backing_thread_sp->GetRegisterContext();
        } else {
          OperatingSystem *os = process_sp->GetOperatingSystem();
          if (os->IsOperatingSystemPluginThread(thread_sp))
            m_reg_ctx_sp = os->CreateRegisterContextForThread(
                thread_sp.get(), m_register_data_addr);
        }
      }
    } else {
      m_reg_ctx_sp.reset();
    }
  } else {
    m_reg_ctx_sp.reset();
  }
}

// Subclasses must override these functions
void RegisterContextThreadMemory::InvalidateAllRegisters() {
  UpdateRegisterContext();
  if (m_reg_ctx_sp)
    m_reg_ctx_sp->InvalidateAllRegisters();
}

size_t RegisterContextThreadMemory::GetRegisterCount() {
  UpdateRegisterContext();
  if (m_reg_ctx_sp)
    return m_reg_ctx_sp->GetRegisterCount();
  return 0;
}

const RegisterInfo *
RegisterContextThreadMemory::GetRegisterInfoAtIndex(size_t reg) {
  UpdateRegisterContext();
  if (m_reg_ctx_sp)
    return m_reg_ctx_sp->GetRegisterInfoAtIndex(reg);
  return nullptr;
}

size_t RegisterContextThreadMemory::GetRegisterSetCount() {
  UpdateRegisterContext();
  if (m_reg_ctx_sp)
    return m_reg_ctx_sp->GetRegisterSetCount();
  return 0;
}

const RegisterSet *RegisterContextThreadMemory::GetRegisterSet(size_t reg_set) {
  UpdateRegisterContext();
  if (m_reg_ctx_sp)
    return m_reg_ctx_sp->GetRegisterSet(reg_set);
  return nullptr;
}

bool RegisterContextThreadMemory::ReadRegister(const RegisterInfo *reg_info,
                                               RegisterValue &reg_value) {
  UpdateRegisterContext();
  if (m_reg_ctx_sp)
    return m_reg_ctx_sp->ReadRegister(reg_info, reg_value);
  return false;
}

bool RegisterContextThreadMemory::WriteRegister(
    const RegisterInfo *reg_info, const RegisterValue &reg_value) {
  UpdateRegisterContext();
  if (m_reg_ctx_sp)
    return m_reg_ctx_sp->WriteRegister(reg_info, reg_value);
  return false;
}

bool RegisterContextThreadMemory::ReadAllRegisterValues(
    lldb::DataBufferSP &data_sp) {
  UpdateRegisterContext();
  if (m_reg_ctx_sp)
    return m_reg_ctx_sp->ReadAllRegisterValues(data_sp);
  return false;
}

bool RegisterContextThreadMemory::WriteAllRegisterValues(
    const lldb::DataBufferSP &data_sp) {
  UpdateRegisterContext();
  if (m_reg_ctx_sp)
    return m_reg_ctx_sp->WriteAllRegisterValues(data_sp);
  return false;
}

bool RegisterContextThreadMemory::CopyFromRegisterContext(
    lldb::RegisterContextSP reg_ctx_sp) {
  UpdateRegisterContext();
  if (m_reg_ctx_sp)
    return m_reg_ctx_sp->CopyFromRegisterContext(reg_ctx_sp);
  return false;
}

uint32_t RegisterContextThreadMemory::ConvertRegisterKindToRegisterNumber(
    lldb::RegisterKind kind, uint32_t num) {
  UpdateRegisterContext();
  if (m_reg_ctx_sp)
    return m_reg_ctx_sp->ConvertRegisterKindToRegisterNumber(kind, num);
  return false;
}

uint32_t RegisterContextThreadMemory::NumSupportedHardwareBreakpoints() {
  UpdateRegisterContext();
  if (m_reg_ctx_sp)
    return m_reg_ctx_sp->NumSupportedHardwareBreakpoints();
  return false;
}

uint32_t RegisterContextThreadMemory::SetHardwareBreakpoint(lldb::addr_t addr,
                                                            size_t size) {
  UpdateRegisterContext();
  if (m_reg_ctx_sp)
    return m_reg_ctx_sp->SetHardwareBreakpoint(addr, size);
  return 0;
}

bool RegisterContextThreadMemory::ClearHardwareBreakpoint(uint32_t hw_idx) {
  UpdateRegisterContext();
  if (m_reg_ctx_sp)
    return m_reg_ctx_sp->ClearHardwareBreakpoint(hw_idx);
  return false;
}

uint32_t RegisterContextThreadMemory::NumSupportedHardwareWatchpoints() {
  UpdateRegisterContext();
  if (m_reg_ctx_sp)
    return m_reg_ctx_sp->NumSupportedHardwareWatchpoints();
  return 0;
}

uint32_t RegisterContextThreadMemory::SetHardwareWatchpoint(lldb::addr_t addr,
                                                            size_t size,
                                                            bool read,
                                                            bool write) {
  UpdateRegisterContext();
  if (m_reg_ctx_sp)
    return m_reg_ctx_sp->SetHardwareWatchpoint(addr, size, read, write);
  return 0;
}

bool RegisterContextThreadMemory::ClearHardwareWatchpoint(uint32_t hw_index) {
  UpdateRegisterContext();
  if (m_reg_ctx_sp)
    return m_reg_ctx_sp->ClearHardwareWatchpoint(hw_index);
  return false;
}

bool RegisterContextThreadMemory::HardwareSingleStep(bool enable) {
  UpdateRegisterContext();
  if (m_reg_ctx_sp)
    return m_reg_ctx_sp->HardwareSingleStep(enable);
  return false;
}

Status RegisterContextThreadMemory::ReadRegisterValueFromMemory(
    const lldb_private::RegisterInfo *reg_info, lldb::addr_t src_addr,
    uint32_t src_len, RegisterValue &reg_value) {
  UpdateRegisterContext();
  if (m_reg_ctx_sp)
    return m_reg_ctx_sp->ReadRegisterValueFromMemory(reg_info, src_addr,
                                                     src_len, reg_value);
  Status error;
  error.SetErrorString("invalid register context");
  return error;
}

Status RegisterContextThreadMemory::WriteRegisterValueToMemory(
    const lldb_private::RegisterInfo *reg_info, lldb::addr_t dst_addr,
    uint32_t dst_len, const RegisterValue &reg_value) {
  UpdateRegisterContext();
  if (m_reg_ctx_sp)
    return m_reg_ctx_sp->WriteRegisterValueToMemory(reg_info, dst_addr, dst_len,
                                                    reg_value);
  Status error;
  error.SetErrorString("invalid register context");
  return error;
}

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Editing: RegisterContextThreadMemory.cpp

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