contrib/llvm/tools/lldb/source/Host/common/NativeThreadProtocol.cpp

   1 //===-- NativeThreadProtocol.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 "lldb/Host/common/NativeThreadProtocol.h"
  11
  12 #include "lldb/Host/common/NativeProcessProtocol.h"
  13 #include "lldb/Host/common/NativeRegisterContext.h"
  14 #include "lldb/Host/common/SoftwareBreakpoint.h"
  15
  16 using namespace lldb;
  17 using namespace lldb_private;
  18
  19 NativeThreadProtocol::NativeThreadProtocol(NativeProcessProtocol &process,
  20                                            lldb::tid_t tid)
  21     : m_process(process), m_tid(tid) {}
  22
  23 Status NativeThreadProtocol::ReadRegister(uint32_t reg,
  24                                           RegisterValue &reg_value) {
  25   NativeRegisterContextSP register_context_sp = GetRegisterContext();
  26   if (!register_context_sp)
  27     return Status("no register context");
  28
  29   const RegisterInfo *const reg_info =
  30       register_context_sp->GetRegisterInfoAtIndex(reg);
  31   if (!reg_info)
  32     return Status("no register info for reg num %" PRIu32, reg);
  33
  34   return register_context_sp->ReadRegister(reg_info, reg_value);
  35   ;
  36 }
  37
  38 Status NativeThreadProtocol::WriteRegister(uint32_t reg,
  39                                            const RegisterValue &reg_value) {
  40   NativeRegisterContextSP register_context_sp = GetRegisterContext();
  41   if (!register_context_sp)
  42     return Status("no register context");
  43
  44   const RegisterInfo *const reg_info =
  45       register_context_sp->GetRegisterInfoAtIndex(reg);
  46   if (!reg_info)
  47     return Status("no register info for reg num %" PRIu32, reg);
  48
  49   return register_context_sp->WriteRegister(reg_info, reg_value);
  50 }
  51
  52 Status NativeThreadProtocol::SaveAllRegisters(lldb::DataBufferSP &data_sp) {
  53   NativeRegisterContextSP register_context_sp = GetRegisterContext();
  54   if (!register_context_sp)
  55     return Status("no register context");
  56   return register_context_sp->WriteAllRegisterValues(data_sp);
  57 }
  58
  59 Status NativeThreadProtocol::RestoreAllRegisters(lldb::DataBufferSP &data_sp) {
  60   NativeRegisterContextSP register_context_sp = GetRegisterContext();
  61   if (!register_context_sp)
  62     return Status("no register context");
  63   return register_context_sp->ReadAllRegisterValues(data_sp);
  64 }