source/Plugins/Process/Utility/RegisterContextLinux_mips.cpp

   1 //===-- RegisterContextLinux_mips.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 <stddef.h>
  11 #include <vector>
  12
  13 // For eh_frame and DWARF Register numbers
  14 #include "RegisterContextLinux_mips.h"
  15
  16 // Internal codes for mips registers
  17 #include "lldb-mips-linux-register-enums.h"
  18
  19 // For GP and FP buffers
  20 #include "RegisterContext_mips.h"
  21
  22 using namespace lldb_private;
  23 using namespace lldb;
  24
  25 //---------------------------------------------------------------------------
  26 // Include RegisterInfos_mips to declare our g_register_infos_mips structure.
  27 //---------------------------------------------------------------------------
  28 #define DECLARE_REGISTER_INFOS_MIPS_STRUCT
  29 #include "RegisterInfos_mips.h"
  30 #undef DECLARE_REGISTER_INFOS_MIPS_STRUCT
  31
  32 uint32_t GetUserRegisterInfoCount(bool msa_present) {
  33   if (msa_present)
  34     return static_cast<uint32_t>(k_num_user_registers_mips);
  35   return static_cast<uint32_t>(k_num_user_registers_mips -
  36                                k_num_msa_registers_mips);
  37 }
  38
  39 RegisterContextLinux_mips::RegisterContextLinux_mips(
  40     const ArchSpec &target_arch, bool msa_present)
  41     : RegisterInfoInterface(target_arch),
  42       m_user_register_count(GetUserRegisterInfoCount(msa_present)) {}
  43
  44 size_t RegisterContextLinux_mips::GetGPRSize() const {
  45   return sizeof(GPR_linux_mips);
  46 }
  47
  48 const RegisterInfo *RegisterContextLinux_mips::GetRegisterInfo() const {
  49   switch (m_target_arch.GetMachine()) {
  50   case llvm::Triple::mips:
  51   case llvm::Triple::mipsel:
  52     return g_register_infos_mips;
  53   default:
  54     assert(false && "Unhandled target architecture.");
  55     return NULL;
  56   }
  57 }
  58
  59 uint32_t RegisterContextLinux_mips::GetRegisterCount() const {
  60   return static_cast<uint32_t>(sizeof(g_register_infos_mips) /
  61                                sizeof(g_register_infos_mips[0]));
  62 }
  63
  64 uint32_t RegisterContextLinux_mips::GetUserRegisterCount() const {
  65   return static_cast<uint32_t>(m_user_register_count);
  66 }