contrib/llvm/tools/lldb/source/Plugins/Process/Utility/RegisterContextFreeBSD_arm64.cpp

   1 //===-- RegisterContextFreeBSD_arm64.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 <vector>
  11 #include "RegisterContextPOSIX_arm64.h"
  12 #include "RegisterContextFreeBSD_arm64.h"
  13
  14 using namespace lldb;
  15
  16 // Based on RegisterContextDarwin_arm64.cpp
  17 #define GPR_OFFSET(idx) ((idx) * 8)
  18 #define GPR_OFFSET_NAME(reg) (LLVM_EXTENSION offsetof (RegisterContextFreeBSD_arm64::GPR, reg))
  19
  20 #define FPU_OFFSET(idx) ((idx) * 16 + sizeof (RegisterContextFreeBSD_arm64::GPR))
  21 #define FPU_OFFSET_NAME(reg) (LLVM_EXTENSION offsetof (RegisterContextFreeBSD_arm64::FPU, reg))
  22
  23 #define EXC_OFFSET_NAME(reg) (LLVM_EXTENSION offsetof (RegisterContextFreeBSD_arm64::EXC, reg) + sizeof (RegisterContextFreeBSD_arm64::GPR) + sizeof (RegisterContextFreeBSD_arm64::FPU))
  24 #define DBG_OFFSET_NAME(reg) (LLVM_EXTENSION offsetof (RegisterContextFreeBSD_arm64::DBG, reg) + sizeof (RegisterContextFreeBSD_arm64::GPR) + sizeof (RegisterContextFreeBSD_arm64::FPU) + sizeof (RegisterContextFreeBSD_arm64::EXC))
  25
  26 #define DEFINE_DBG(reg, i)  #reg, NULL, sizeof(((RegisterContextFreeBSD_arm64::DBG *)NULL)->reg[i]), DBG_OFFSET_NAME(reg[i]), lldb::eEncodingUint, lldb::eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, dbg_##reg##i }, NULL, NULL
  27 #define REG_CONTEXT_SIZE (sizeof (RegisterContextFreeBSD_arm64::GPR) + sizeof (RegisterContextFreeBSD_arm64::FPU) + sizeof (RegisterContextFreeBSD_arm64::EXC))
  28
  29 //-----------------------------------------------------------------------------
  30 // Include RegisterInfos_arm64 to declare our g_register_infos_arm64 structure.
  31 //-----------------------------------------------------------------------------
  32 #define DECLARE_REGISTER_INFOS_ARM64_STRUCT
  33 #include "RegisterInfos_arm64.h"
  34 #undef DECLARE_REGISTER_INFOS_ARM64_STRUCT
  35
  36 static const lldb_private::RegisterInfo *
  37 GetRegisterInfoPtr(const lldb_private::ArchSpec &target_arch)
  38 {
  39     switch (target_arch.GetMachine())
  40     {
  41         case llvm::Triple::aarch64:
  42             return g_register_infos_arm64;
  43         default:
  44             assert(false && "Unhandled target architecture.");
  45             return nullptr;
  46     }
  47 }
  48
  49 static uint32_t
  50 GetRegisterInfoCount(const lldb_private::ArchSpec &target_arch)
  51 {
  52     switch (target_arch.GetMachine())
  53     {
  54         case llvm::Triple::aarch64:
  55             return static_cast<uint32_t>(sizeof(g_register_infos_arm64) / sizeof(g_register_infos_arm64[0]));
  56         default:
  57             assert(false && "Unhandled target architecture.");
  58             return 0;
  59     }
  60 }
  61
  62 RegisterContextFreeBSD_arm64::RegisterContextFreeBSD_arm64(const lldb_private::ArchSpec &target_arch) :
  63     RegisterInfoInterface(target_arch),
  64     m_register_info_p(GetRegisterInfoPtr(target_arch)),
  65     m_register_info_count(GetRegisterInfoCount(target_arch))
  66 {
  67 }
  68
  69 size_t
  70 RegisterContextFreeBSD_arm64::GetGPRSize() const
  71 {
  72     return sizeof(struct RegisterContextFreeBSD_arm64::GPR);
  73 }
  74
  75 const lldb_private::RegisterInfo *
  76 RegisterContextFreeBSD_arm64::GetRegisterInfo() const
  77 {
  78     return m_register_info_p;
  79 }
  80
  81 uint32_t
  82 RegisterContextFreeBSD_arm64::GetRegisterCount() const
  83 {
  84     return m_register_info_count;
  85 }
  86