1 files changed, 0 insertions, 160 deletions
diff --git a/lldb/source/Plugins/Process/Utility/RegisterContextMacOSXFrameBackchain.cpp b/lldb/source/Plugins/Process/Utility/RegisterContextMacOSXFrameBackchain.cpp
deleted file mode 100644
index bc78c1d6160c..000000000000
--- a/lldb/source/Plugins/Process/Utility/RegisterContextMacOSXFrameBackchain.cpp
+++ /dev/null
@@ -1,160 +0,0 @@
-//===-- RegisterContextMacOSXFrameBackchain.cpp -----------------*- C++ -*-===//
-//
-// 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 "RegisterContextMacOSXFrameBackchain.h"
-
-#include "lldb/Target/Thread.h"
-#include "lldb/Utility/DataBufferHeap.h"
-#include "lldb/Utility/DataExtractor.h"
-#include "lldb/Utility/RegisterValue.h"
-#include "lldb/Utility/Scalar.h"
-#include "lldb/Utility/StreamString.h"
-#include "lldb/Utility/StringExtractorGDBRemote.h"
-
-using namespace lldb;
-using namespace lldb_private;
-
-// RegisterContextMacOSXFrameBackchain constructor
-RegisterContextMacOSXFrameBackchain::RegisterContextMacOSXFrameBackchain(
-    Thread &thread, uint32_t concrete_frame_idx,
-    const UnwindMacOSXFrameBackchain::Cursor &cursor)
-    : RegisterContext(thread, concrete_frame_idx), m_cursor(cursor),
-      m_cursor_is_valid(true) {}
-
-// Destructor
-RegisterContextMacOSXFrameBackchain::~RegisterContextMacOSXFrameBackchain() {}
-
-void RegisterContextMacOSXFrameBackchain::InvalidateAllRegisters() {
-  m_cursor_is_valid = false;
-}
-
-size_t RegisterContextMacOSXFrameBackchain::GetRegisterCount() {
-  return m_thread.GetRegisterContext()->GetRegisterCount();
-}
-
-const RegisterInfo *
-RegisterContextMacOSXFrameBackchain::GetRegisterInfoAtIndex(size_t reg) {
-  return m_thread.GetRegisterContext()->GetRegisterInfoAtIndex(reg);
-}
-
-size_t RegisterContextMacOSXFrameBackchain::GetRegisterSetCount() {
-  return m_thread.GetRegisterContext()->GetRegisterSetCount();
-}
-
-const RegisterSet *
-RegisterContextMacOSXFrameBackchain::GetRegisterSet(size_t reg_set) {
-  return m_thread.GetRegisterContext()->GetRegisterSet(reg_set);
-}
-
-bool RegisterContextMacOSXFrameBackchain::ReadRegister(
-    const RegisterInfo *reg_info, RegisterValue &value) {
-  if (!m_cursor_is_valid)
-    return false;
-
-  uint64_t reg_value = LLDB_INVALID_ADDRESS;
-
-  switch (reg_info->kinds[eRegisterKindGeneric]) {
-  case LLDB_REGNUM_GENERIC_PC:
-    if (m_cursor.pc == LLDB_INVALID_ADDRESS)
-      return false;
-    reg_value = m_cursor.pc;
-    break;
-
-  case LLDB_REGNUM_GENERIC_FP:
-    if (m_cursor.fp == LLDB_INVALID_ADDRESS)
-      return false;
-    reg_value = m_cursor.fp;
-    break;
-
-  default:
-    return false;
-  }
-
-  switch (reg_info->encoding) {
-  case eEncodingInvalid:
-  case eEncodingVector:
-    break;
-
-  case eEncodingUint:
-  case eEncodingSint:
-    value.SetUInt(reg_value, reg_info->byte_size);
-    return true;
-
-  case eEncodingIEEE754:
-    switch (reg_info->byte_size) {
-    case sizeof(float):
-      if (sizeof(float) == sizeof(uint32_t)) {
-        value.SetUInt32(reg_value, RegisterValue::eTypeFloat);
-        return true;
-      } else if (sizeof(float) == sizeof(uint64_t)) {
-        value.SetUInt64(reg_value, RegisterValue::eTypeFloat);
-        return true;
-      }
-      break;
-
-    case sizeof(double):
-      if (sizeof(double) == sizeof(uint32_t)) {
-        value.SetUInt32(reg_value, RegisterValue::eTypeDouble);
-        return true;
-      } else if (sizeof(double) == sizeof(uint64_t)) {
-        value.SetUInt64(reg_value, RegisterValue::eTypeDouble);
-        return true;
-      }
-      break;
-
-// TOOD: need a better way to detect when "long double" types are
-// the same bytes size as "double"
-#if !defined(__arm__) && !defined(__arm64__) && !defined(__aarch64__) &&       \
-    !defined(_MSC_VER) && !defined(__mips__) && !defined(__powerpc__) &&       \
-    !defined(__ANDROID__)
-    case sizeof(long double):
-      if (sizeof(long double) == sizeof(uint32_t)) {
-        value.SetUInt32(reg_value, RegisterValue::eTypeLongDouble);
-        return true;
-      } else if (sizeof(long double) == sizeof(uint64_t)) {
-        value.SetUInt64(reg_value, RegisterValue::eTypeLongDouble);
-        return true;
-      }
-      break;
-#endif
-    }
-    break;
-  }
-  return false;
-}
-
-bool RegisterContextMacOSXFrameBackchain::WriteRegister(
-    const RegisterInfo *reg_info, const RegisterValue &value) {
-  // Not supported yet. We could easily add support for this by remembering the
-  // address of each entry (it would need to be part of the cursor)
-  return false;
-}
-
-bool RegisterContextMacOSXFrameBackchain::ReadAllRegisterValues(
-    lldb::DataBufferSP &data_sp) {
-  // libunwind frames can't handle this it doesn't always have all register
-  // values. This call should only be called on frame zero anyway so there
-  // shouldn't be any problem
-  return false;
-}
-
-bool RegisterContextMacOSXFrameBackchain::WriteAllRegisterValues(
-    const lldb::DataBufferSP &data_sp) {
-  // Since this class doesn't respond to "ReadAllRegisterValues()", it must not
-  // have been the one that saved all the register values. So we just let the
-  // thread's register context (the register context for frame zero) do the
-  // writing.
-  return m_thread.GetRegisterContext()->WriteAllRegisterValues(data_sp);
-}
-
-uint32_t
-RegisterContextMacOSXFrameBackchain::ConvertRegisterKindToRegisterNumber(
-    lldb::RegisterKind kind, uint32_t num) {
-  return m_thread.GetRegisterContext()->ConvertRegisterKindToRegisterNumber(
-      kind, num);
-}