contrib/llvm/tools/lldb/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_arm.cpp

   1 //===-- RegisterContextPOSIXCore_arm.cpp ------------------------*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 #include "RegisterContextPOSIXCore_arm.h"
  11
  12 #include "lldb/Target/Thread.h"
  13 #include "lldb/Utility/RegisterValue.h"
  14
  15 using namespace lldb_private;
  16
  17 RegisterContextCorePOSIX_arm::RegisterContextCorePOSIX_arm(
  18     Thread &thread, RegisterInfoInterface *register_info,
  19     const DataExtractor &gpregset, llvm::ArrayRef<CoreNote> notes)
  20     : RegisterContextPOSIX_arm(thread, 0, register_info) {
  21   m_gpr_buffer.reset(
  22       new DataBufferHeap(gpregset.GetDataStart(), gpregset.GetByteSize()));
  23   m_gpr.SetData(m_gpr_buffer);
  24   m_gpr.SetByteOrder(gpregset.GetByteOrder());
  25 }
  26
  27 RegisterContextCorePOSIX_arm::~RegisterContextCorePOSIX_arm() {}
  28
  29 bool RegisterContextCorePOSIX_arm::ReadGPR() { return true; }
  30
  31 bool RegisterContextCorePOSIX_arm::ReadFPR() { return false; }
  32
  33 bool RegisterContextCorePOSIX_arm::WriteGPR() {
  34   assert(0);
  35   return false;
  36 }
  37
  38 bool RegisterContextCorePOSIX_arm::WriteFPR() {
  39   assert(0);
  40   return false;
  41 }
  42
  43 bool RegisterContextCorePOSIX_arm::ReadRegister(const RegisterInfo *reg_info,
  44                                                 RegisterValue &value) {
  45   lldb::offset_t offset = reg_info->byte_offset;
  46   uint64_t v = m_gpr.GetMaxU64(&offset, reg_info->byte_size);
  47   if (offset == reg_info->byte_offset + reg_info->byte_size) {
  48     value = v;
  49     return true;
  50   }
  51   return false;
  52 }
  53
  54 bool RegisterContextCorePOSIX_arm::ReadAllRegisterValues(
  55     lldb::DataBufferSP &data_sp) {
  56   return false;
  57 }
  58
  59 bool RegisterContextCorePOSIX_arm::WriteRegister(const RegisterInfo *reg_info,
  60                                                  const RegisterValue &value) {
  61   return false;
  62 }
  63
  64 bool RegisterContextCorePOSIX_arm::WriteAllRegisterValues(
  65     const lldb::DataBufferSP &data_sp) {
  66   return false;
  67 }
  68
  69 bool RegisterContextCorePOSIX_arm::HardwareSingleStep(bool enable) {
  70   return false;
  71 }