lldb/source/Plugins/Process/minidump/RegisterContextMinidump_ARM64.h

   1 //===-- RegisterContextMinidump_ARM64.h -------------------------*- C++ -*-===//
   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 #ifndef LLDB_SOURCE_PLUGINS_PROCESS_MINIDUMP_REGISTERCONTEXTMINIDUMP_ARM64_H
  10 #define LLDB_SOURCE_PLUGINS_PROCESS_MINIDUMP_REGISTERCONTEXTMINIDUMP_ARM64_H
  11
  12 #include "MinidumpTypes.h"
  13
  14 #include "Plugins/Process/Utility/RegisterInfoInterface.h"
  15 #include "lldb/Target/RegisterContext.h"
  16
  17 #include "llvm/ADT/ArrayRef.h"
  18 #include "llvm/ADT/BitmaskEnum.h"
  19
  20 // C includes
  21 // C++ includes
  22
  23 namespace lldb_private {
  24
  25 namespace minidump {
  26
  27 LLVM_ENABLE_BITMASK_ENUMS_IN_NAMESPACE();
  28
  29 class RegisterContextMinidump_ARM64 : public lldb_private::RegisterContext {
  30 public:
  31   RegisterContextMinidump_ARM64(lldb_private::Thread &thread,
  32                                 const DataExtractor &data);
  33
  34   ~RegisterContextMinidump_ARM64() override = default;
  35
  36   void InvalidateAllRegisters() override {
  37     // Do nothing... registers are always valid...
  38   }
  39
  40   size_t GetRegisterCount() override;
  41
  42   const lldb_private::RegisterInfo *GetRegisterInfoAtIndex(size_t reg) override;
  43
  44   size_t GetRegisterSetCount() override;
  45
  46   const lldb_private::RegisterSet *GetRegisterSet(size_t set) override;
  47
  48   const char *GetRegisterName(unsigned reg);
  49
  50   bool ReadRegister(const RegisterInfo *reg_info,
  51                     RegisterValue &reg_value) override;
  52
  53   bool WriteRegister(const RegisterInfo *reg_info,
  54                      const RegisterValue &reg_value) override;
  55
  56   uint32_t ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind,
  57                                                uint32_t num) override;
  58
  59   // Reference: see breakpad/crashpad source
  60   struct Context {
  61     uint64_t context_flags;
  62     uint64_t x[32];
  63     uint64_t pc;
  64     uint32_t cpsr;
  65     uint32_t fpsr;
  66     uint32_t fpcr;
  67     uint8_t v[32 * 16]; // 32 128-bit floating point registers
  68   };
  69
  70 protected:
  71   enum class Flags : uint32_t {
  72     ARM64_Flag = 0x80000000,
  73     Integer = ARM64_Flag | 0x00000002,
  74     FloatingPoint = ARM64_Flag | 0x00000004,
  75     LLVM_MARK_AS_BITMASK_ENUM(/* LargestValue = */ FloatingPoint)
  76   };
  77   Context m_regs;
  78 };
  79
  80 } // end namespace minidump
  81 } // end namespace lldb_private
  82 #endif // LLDB_SOURCE_PLUGINS_PROCESS_MINIDUMP_REGISTERCONTEXTMINIDUMP_ARM64_H