| //===-- EmulateInstructionARM64.h ------------------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef EmulateInstructionARM64_h_ |
| #define EmulateInstructionARM64_h_ |
| |
| #include "lldb/Core/EmulateInstruction.h" |
| #include "lldb/Core/Error.h" |
| #include "lldb/Interpreter/OptionValue.h" |
| #include "Plugins/Process/Utility/ARMDefines.h" |
| |
| class EmulateInstructionARM64 : public lldb_private::EmulateInstruction |
| { |
| public: |
| static void |
| Initialize (); |
| |
| static void |
| Terminate (); |
| |
| static lldb_private::ConstString |
| GetPluginNameStatic (); |
| |
| static const char * |
| GetPluginDescriptionStatic (); |
| |
| static lldb_private::EmulateInstruction * |
| CreateInstance (const lldb_private::ArchSpec &arch, |
| lldb_private::InstructionType inst_type); |
| |
| static bool |
| SupportsEmulatingInstructionsOfTypeStatic (lldb_private::InstructionType inst_type) |
| { |
| switch (inst_type) |
| { |
| case lldb_private::eInstructionTypeAny: |
| case lldb_private::eInstructionTypePrologueEpilogue: |
| return true; |
| |
| case lldb_private::eInstructionTypePCModifying: |
| case lldb_private::eInstructionTypeAll: |
| return false; |
| } |
| return false; |
| } |
| |
| virtual lldb_private::ConstString |
| GetPluginName(); |
| |
| virtual lldb_private::ConstString |
| GetShortPluginName() |
| { |
| return GetPluginNameStatic(); |
| } |
| |
| virtual uint32_t |
| GetPluginVersion() |
| { |
| return 1; |
| } |
| |
| bool |
| SetTargetTriple (const lldb_private::ArchSpec &arch); |
| |
| EmulateInstructionARM64 (const lldb_private::ArchSpec &arch) : |
| EmulateInstruction (arch), |
| m_opcode_pstate (), |
| m_emulated_pstate (), |
| m_ignore_conditions (false) |
| { |
| } |
| |
| virtual bool |
| SupportsEmulatingInstructionsOfType (lldb_private::InstructionType inst_type) |
| { |
| return SupportsEmulatingInstructionsOfTypeStatic (inst_type); |
| } |
| |
| virtual bool |
| ReadInstruction (); |
| |
| virtual bool |
| EvaluateInstruction (uint32_t evaluate_options); |
| |
| virtual bool |
| TestEmulation (lldb_private::Stream *out_stream, |
| lldb_private::ArchSpec &arch, |
| lldb_private::OptionValueDictionary *test_data) |
| { |
| return false; |
| } |
| |
| virtual bool |
| GetRegisterInfo (lldb::RegisterKind reg_kind, |
| uint32_t reg_num, |
| lldb_private::RegisterInfo ®_info); |
| |
| virtual bool |
| CreateFunctionEntryUnwind (lldb_private::UnwindPlan &unwind_plan); |
| |
| |
| typedef enum |
| { |
| AddrMode_OFF, |
| AddrMode_PRE, |
| AddrMode_POST |
| } AddrMode; |
| |
| typedef enum |
| { |
| BranchType_CALL, |
| BranchType_ERET, |
| BranchType_DRET, |
| BranchType_RET, |
| BranchType_JMP |
| } BranchType; |
| |
| typedef enum |
| { |
| CountOp_CLZ, |
| CountOp_CLS, |
| CountOp_CNT |
| } CountOp; |
| |
| typedef enum |
| { |
| RevOp_RBIT, |
| RevOp_REV16, |
| RevOp_REV32, |
| RevOp_REV64 |
| } RevOp; |
| |
| typedef enum |
| { |
| BitwiseOp_NOT, |
| BitwiseOp_RBIT |
| } BitwiseOp; |
| |
| |
| typedef enum |
| { |
| EL0 = 0, |
| EL1 = 1, |
| EL2 = 2, |
| EL3 = 3 |
| } ExceptionLevel; |
| |
| typedef enum |
| { |
| ExtendType_SXTB, |
| ExtendType_SXTH, |
| ExtendType_SXTW, |
| ExtendType_SXTX, |
| ExtendType_UXTB, |
| ExtendType_UXTH, |
| ExtendType_UXTW, |
| ExtendType_UXTX |
| } ExtendType; |
| |
| typedef enum |
| { |
| ExtractType_LEFT, |
| ExtractType_RIGHT |
| } ExtractType; |
| |
| typedef enum |
| { |
| LogicalOp_AND, |
| LogicalOp_EOR, |
| LogicalOp_ORR |
| } LogicalOp; |
| |
| typedef enum |
| { |
| MemOp_LOAD, |
| MemOp_STORE, |
| MemOp_PREFETCH, |
| MemOp_NOP |
| } MemOp; |
| |
| typedef enum |
| { |
| MoveWideOp_N, |
| MoveWideOp_Z, |
| MoveWideOp_K |
| } MoveWideOp; |
| |
| typedef enum { |
| ShiftType_LSL, |
| ShiftType_LSR, |
| ShiftType_ASR, |
| ShiftType_ROR |
| } ShiftType; |
| |
| typedef enum |
| { |
| SP0 = 0, |
| SPx = 1 |
| } StackPointerSelection; |
| |
| typedef enum |
| { |
| Unpredictable_WBOVERLAP, |
| Unpredictable_LDPOVERLAP |
| } Unpredictable; |
| |
| typedef enum |
| { |
| Constraint_NONE, |
| Constraint_UNKNOWN, |
| Constraint_SUPPRESSWB, |
| Constraint_NOP |
| } ConstraintType; |
| |
| typedef enum |
| { |
| AccType_NORMAL, |
| AccType_UNPRIV, |
| AccType_STREAM, |
| AccType_ALIGNED, |
| AccType_ORDERED |
| } AccType; |
| |
| typedef struct |
| { |
| uint32_t |
| N:1, |
| V:1, |
| C:1, |
| Z:1, // condition code flags – can also be accessed as PSTATE.[N,Z,C,V] |
| Q:1, // AArch32 only – CSPR.Q bit |
| IT:8, // AArch32 only – CPSR.IT bits |
| J:1, // AArch32 only – CSPR.J bit |
| T:1, // AArch32 only – CPSR.T bit |
| SS:1, // Single step process state bit |
| IL:1, // Illegal state bit |
| D:1, |
| A:1, |
| I:1, |
| F:1, // Interrupt masks – can also be accessed as PSTATE.[D,A,I,F] |
| E:1, // AArch32 only – CSPR.E bit |
| M:5, // AArch32 only – mode encodings |
| RW:1, // Current register width – 0 is AArch64, 1 is AArch32 |
| EL:2, // Current exception level (see ExceptionLevel enum) |
| SP:1; // AArch64 only - Stack Pointer selection (see StackPointerSelection enum) |
| } ProcState; |
| |
| protected: |
| |
| typedef struct |
| { |
| uint32_t mask; |
| uint32_t value; |
| uint32_t vfp_variants; |
| bool (EmulateInstructionARM64::*callback) (const uint32_t opcode); |
| const char *name; |
| } Opcode; |
| |
| static Opcode* |
| GetOpcodeForInstruction (const uint32_t opcode); |
| |
| bool |
| Emulate_addsub_imm (const uint32_t opcode); |
| |
| // bool |
| // Emulate_STP_Q_ldstpair_off (const uint32_t opcode); |
| // |
| // bool |
| // Emulate_STP_S_ldstpair_off (const uint32_t opcode); |
| // |
| // bool |
| // Emulate_STP_32_ldstpair_off (const uint32_t opcode); |
| // |
| // bool |
| // Emulate_STP_D_ldstpair_off (const uint32_t opcode); |
| // |
| bool |
| Emulate_ldstpair_off (const uint32_t opcode); |
| |
| bool |
| Emulate_ldstpair_pre (const uint32_t opcode); |
| |
| bool |
| Emulate_ldstpair (const uint32_t opcode, AddrMode a_mode); |
| |
| ProcState m_opcode_pstate; |
| ProcState m_emulated_pstate; // This can get updated by the opcode. |
| bool m_ignore_conditions; |
| }; |
| |
| #endif // EmulateInstructionARM64_h_ |