C++ (Cpp) DataBufferSP::GetByteSize Examples

Example #1

File: NativeRegisterContextLinux_mips64.cpp Project: llvm-project/lldb

Status NativeRegisterContextLinux_mips64::WriteAllRegisterValues(
    const lldb::DataBufferSP &data_sp) {
  Status error;

  if (!data_sp) {
    error.SetErrorStringWithFormat(
        "NativeRegisterContextLinux_mips64::%s invalid data_sp provided",
        __FUNCTION__);
    return error;
  }

  if (data_sp->GetByteSize() != REG_CONTEXT_SIZE) {
    error.SetErrorStringWithFormat(
        "NativeRegisterContextLinux_mips64::%s data_sp contained mismatched "
        "data size, expected %" PRIu64 ", actual %" PRIu64,
        __FUNCTION__, REG_CONTEXT_SIZE, data_sp->GetByteSize());
    return error;
  }

  uint8_t *src = data_sp->GetBytes();
  if (src == nullptr) {
    error.SetErrorStringWithFormat("NativeRegisterContextLinux_mips64::%s "
                                   "DataBuffer::GetBytes() returned a null "
                                   "pointer",
                                   __FUNCTION__);
    return error;
  }

  ::memcpy(&m_gpr, src, GetRegisterInfoInterface().GetGPRSize());
  src += GetRegisterInfoInterface().GetGPRSize();

  ::memcpy(&m_fpr, src, GetFPRSize());
  src += GetFPRSize();

  ::memcpy(&m_msa, src, sizeof(MSA_linux_mips));

  error = WriteGPR();
  if (!error.Success()) {
    error.SetErrorStringWithFormat(
        "NativeRegisterContextLinux_mips64::%s WriteGPR() failed",
        __FUNCTION__);
    return error;
  }

  error = WriteCP1();
  if (!error.Success()) {
    error.SetErrorStringWithFormat(
        "NativeRegisterContextLinux_mips64::%s WriteCP1() failed",
        __FUNCTION__);
    return error;
  }

  return error;
}

Example #2

File: NativeRegisterContextLinux_s390x.cpp Project: emaste/lldb

Status NativeRegisterContextLinux_s390x::WriteAllRegisterValues(
    const lldb::DataBufferSP &data_sp) {
  Status error;

  if (!data_sp) {
    error.SetErrorStringWithFormat(
        "NativeRegisterContextLinux_s390x::%s invalid data_sp provided",
        __FUNCTION__);
    return error;
  }

  if (data_sp->GetByteSize() != REG_CONTEXT_SIZE) {
    error.SetErrorStringWithFormat(
        "NativeRegisterContextLinux_s390x::%s data_sp contained mismatched "
        "data size, expected %" PRIu64 ", actual %" PRIu64,
        __FUNCTION__, REG_CONTEXT_SIZE, data_sp->GetByteSize());
    return error;
  }

  uint8_t *src = data_sp->GetBytes();
  if (src == nullptr) {
    error.SetErrorStringWithFormat("NativeRegisterContextLinux_s390x::%s "
                                   "DataBuffer::GetBytes() returned a null "
                                   "pointer",
                                   __FUNCTION__);
    return error;
  }

  error = DoWriteGPR(src, sizeof(s390_regs));
  src += sizeof(s390_regs);
  if (error.Fail())
    return error;

  error = DoWriteFPR(src, sizeof(s390_fp_regs));
  src += sizeof(s390_fp_regs);
  if (error.Fail())
    return error;

  // Ignore errors if the regset is unsupported (happens on older kernels).
  DoWriteRegisterSet(NT_S390_SYSTEM_CALL, src, 4);
  src += 4;

  return error;
}

Example #3

File: RegisterContextWindows_x86.cpp Project: johndpope/lldb

bool
RegisterContextWindows_x86::WriteAllRegisterValues(const lldb::DataBufferSP &data_sp)
{
    assert(data_sp->GetByteSize() >= sizeof(m_context));
    memcpy(&m_context, data_sp->GetBytes(), sizeof(m_context));

    TargetThreadWindows &wthread = static_cast<TargetThreadWindows &>(m_thread);
    if (!::SetThreadContext(wthread.GetHostThread().GetNativeThread().GetSystemHandle(), &m_context))
        return false;

    return true;
}

Example #4

File: RegisterContextWindows_x86.cpp Project: johndpope/lldb

bool
RegisterContextWindows_x86::ReadAllRegisterValues(lldb::DataBufferSP &data_sp)
{
    if (!CacheAllRegisterValues())
        return false;
    if (data_sp->GetByteSize() < sizeof(m_context))
    {
        data_sp.reset(new DataBufferHeap(sizeof(CONTEXT), 0));
    }
    memcpy(data_sp->GetBytes(), &m_context, sizeof(m_context));
    return true;
}

Example #5

File: RegisterContextPOSIXProcessMonitor_arm64.cpp Project: CodaFi/swift-lldb

bool RegisterContextPOSIXProcessMonitor_arm64::WriteAllRegisterValues(
    const lldb::DataBufferSP &data_sp) {
  bool success = false;
  if (data_sp && data_sp->GetByteSize() == REG_CONTEXT_SIZE) {
    uint8_t *src = data_sp->GetBytes();
    if (src) {
      ::memcpy(&m_gpr_arm64, src, GetGPRSize());
      if (WriteGPR()) {
        src += GetGPRSize();
        ::memcpy(&m_fpr, src, sizeof m_fpr);
        success = WriteFPR();
      }
    }
  }
  return success;
}

Example #6

File: RegisterContextDarwin_arm64.cpp Project: 2trill2spill/freebsd

bool RegisterContextDarwin_arm64::WriteAllRegisterValues(
    const lldb::DataBufferSP &data_sp) {
  if (data_sp && data_sp->GetByteSize() == REG_CONTEXT_SIZE) {
    const uint8_t *src = data_sp->GetBytes();
    ::memcpy(&gpr, src, sizeof(gpr));
    src += sizeof(gpr);

    ::memcpy(&fpu, src, sizeof(fpu));
    src += sizeof(gpr);

    ::memcpy(&exc, src, sizeof(exc));
    uint32_t success_count = 0;
    if (WriteGPR() == KERN_SUCCESS)
      ++success_count;
    if (WriteFPU() == KERN_SUCCESS)
      ++success_count;
    if (WriteEXC() == KERN_SUCCESS)
      ++success_count;
    return success_count == 3;
  }
  return false;
}

Example #7

File: ObjectContainerUniversalMachO.cpp Project: CodaFi/swift-lldb

size_t ObjectContainerUniversalMachO::GetModuleSpecifications(
    const lldb_private::FileSpec &file, lldb::DataBufferSP &data_sp,
    lldb::offset_t data_offset, lldb::offset_t file_offset,
    lldb::offset_t file_size, lldb_private::ModuleSpecList &specs) {
  const size_t initial_count = specs.GetSize();

  DataExtractor data;
  data.SetData(data_sp, data_offset, data_sp->GetByteSize());

  if (ObjectContainerUniversalMachO::MagicBytesMatch(data)) {
    llvm::MachO::fat_header header;
    std::vector<llvm::MachO::fat_arch> fat_archs;
    if (ParseHeader(data, header, fat_archs)) {
      for (const llvm::MachO::fat_arch &fat_arch : fat_archs) {
        const lldb::offset_t slice_file_offset = fat_arch.offset + file_offset;
        if (fat_arch.offset < file_size && file_size > slice_file_offset) {
          ObjectFile::GetModuleSpecifications(
              file, slice_file_offset, file_size - slice_file_offset, specs);
        }
      }
    }
  }
  return specs.GetSize() - initial_count;
}