lldb/source/Plugins/Process/Utility/RegisterContextLinux_s390x.cpp

   1 //===-- RegisterContextLinux_s390x.cpp ------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "RegisterContextLinux_s390x.h"
  10 #include "RegisterContextPOSIX_s390x.h"
  11
  12 using namespace lldb_private;
  13 using namespace lldb;
  14
  15 // Include RegisterInfos_s390x to declare our g_register_infos_s390x structure.
  16 #define DECLARE_REGISTER_INFOS_S390X_STRUCT
  17 #include "RegisterInfos_s390x.h"
  18 #undef DECLARE_REGISTER_INFOS_S390X_STRUCT
  19
  20 static const RegisterInfo *GetRegisterInfoPtr(const ArchSpec &target_arch) {
  21   switch (target_arch.GetMachine()) {
  22   case llvm::Triple::systemz:
  23     return g_register_infos_s390x;
  24   default:
  25     assert(false && "Unhandled target architecture.");
  26     return nullptr;
  27   }
  28 }
  29
  30 static uint32_t GetRegisterInfoCount(const ArchSpec &target_arch) {
  31   switch (target_arch.GetMachine()) {
  32   case llvm::Triple::systemz:
  33     return k_num_registers_s390x;
  34   default:
  35     assert(false && "Unhandled target architecture.");
  36     return 0;
  37   }
  38 }
  39
  40 static uint32_t GetUserRegisterInfoCount(const ArchSpec &target_arch) {
  41   switch (target_arch.GetMachine()) {
  42   case llvm::Triple::systemz:
  43     return k_num_user_registers_s390x + k_num_linux_registers_s390x;
  44   default:
  45     assert(false && "Unhandled target architecture.");
  46     return 0;
  47   }
  48 }
  49
  50 RegisterContextLinux_s390x::RegisterContextLinux_s390x(
  51     const ArchSpec &target_arch)
  52     : lldb_private::RegisterInfoInterface(target_arch),
  53       m_register_info_p(GetRegisterInfoPtr(target_arch)),
  54       m_register_info_count(GetRegisterInfoCount(target_arch)),
  55       m_user_register_count(GetUserRegisterInfoCount(target_arch)) {}
  56
  57 const RegisterInfo *RegisterContextLinux_s390x::GetRegisterInfo() const {
  58   return m_register_info_p;
  59 }
  60
  61 uint32_t RegisterContextLinux_s390x::GetRegisterCount() const {
  62   return m_register_info_count;
  63 }
  64
  65 uint32_t RegisterContextLinux_s390x::GetUserRegisterCount() const {
  66   return m_user_register_count;
  67 }
  68
  69 size_t RegisterContextLinux_s390x::GetGPRSize() const { return 0; }