| //===-- RegisterContextMach_arm.h -------------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef liblldb_RegisterContextMach_arm_h_ |
| #define liblldb_RegisterContextMach_arm_h_ |
| |
| // C Includes |
| // C++ Includes |
| // Other libraries and framework includes |
| // Project includes |
| #include "lldb/lldb-private.h" |
| #include "lldb/Target/RegisterContext.h" |
| |
| // BCR address match type |
| #define BCR_M_IMVA_MATCH ((uint32_t)(0u << 21)) |
| #define BCR_M_CONTEXT_ID_MATCH ((uint32_t)(1u << 21)) |
| #define BCR_M_IMVA_MISMATCH ((uint32_t)(2u << 21)) |
| #define BCR_M_RESERVED ((uint32_t)(3u << 21)) |
| |
| // Link a BVR/BCR or WVR/WCR pair to another |
| #define E_ENABLE_LINKING ((uint32_t)(1u << 20)) |
| |
| // Byte Address Select |
| #define BAS_IMVA_PLUS_0 ((uint32_t)(1u << 5)) |
| #define BAS_IMVA_PLUS_1 ((uint32_t)(1u << 6)) |
| #define BAS_IMVA_PLUS_2 ((uint32_t)(1u << 7)) |
| #define BAS_IMVA_PLUS_3 ((uint32_t)(1u << 8)) |
| #define BAS_IMVA_0_1 ((uint32_t)(3u << 5)) |
| #define BAS_IMVA_2_3 ((uint32_t)(3u << 7)) |
| #define BAS_IMVA_ALL ((uint32_t)(0xfu << 5)) |
| |
| // Break only in priveleged or user mode |
| #define S_RSVD ((uint32_t)(0u << 1)) |
| #define S_PRIV ((uint32_t)(1u << 1)) |
| #define S_USER ((uint32_t)(2u << 1)) |
| #define S_PRIV_USER ((S_PRIV) | (S_USER)) |
| |
| #define BCR_ENABLE ((uint32_t)(1u)) |
| #define WCR_ENABLE ((uint32_t)(1u)) |
| |
| // Watchpoint load/store |
| #define WCR_LOAD ((uint32_t)(1u << 3)) |
| #define WCR_STORE ((uint32_t)(1u << 4)) |
| |
| class RegisterContextMach_arm : public lldb_private::RegisterContext |
| { |
| public: |
| |
| RegisterContextMach_arm(lldb_private::Thread &thread, lldb_private::StackFrame *frame); |
| |
| virtual |
| ~RegisterContextMach_arm(); |
| |
| virtual void |
| Invalidate (); |
| |
| virtual size_t |
| GetRegisterCount (); |
| |
| virtual const lldb::RegisterInfo * |
| GetRegisterInfoAtIndex (uint32_t reg); |
| |
| virtual size_t |
| GetRegisterSetCount (); |
| |
| virtual const lldb::RegisterSet * |
| GetRegisterSet (uint32_t set); |
| |
| virtual bool |
| ReadRegisterValue (uint32_t reg, lldb_private::Scalar &value); |
| |
| virtual bool |
| ReadRegisterBytes (uint32_t reg, lldb_private::DataExtractor &data); |
| |
| virtual bool |
| ReadAllRegisterValues (lldb::DataBufferSP &data_sp); |
| |
| virtual bool |
| WriteRegisterValue (uint32_t reg, const lldb_private::Scalar &value); |
| |
| virtual bool |
| WriteRegisterBytes (uint32_t reg, lldb_private::DataExtractor &data, uint32_t data_offset = 0); |
| |
| virtual bool |
| WriteAllRegisterValues (const lldb::DataBufferSP &data_sp); |
| |
| virtual uint32_t |
| ConvertRegisterKindToRegisterNumber (uint32_t kind, uint32_t num); |
| |
| virtual uint32_t |
| NumSupportedHardwareBreakpoints (); |
| |
| virtual uint32_t |
| SetHardwareBreakpoint (lldb::addr_t addr, size_t size); |
| |
| virtual bool |
| ClearHardwareBreakpoint (uint32_t hw_idx); |
| |
| virtual uint32_t |
| NumSupportedHardwareWatchpoints (); |
| |
| virtual uint32_t |
| SetHardwareWatchpoint (lldb::addr_t addr, size_t size, bool read, bool write); |
| |
| virtual bool |
| ClearHardwareWatchpoint (uint32_t hw_index); |
| |
| struct GPR |
| { |
| uint32_t r[16]; // R0-R15 |
| uint32_t cpsr; // CPSR |
| }; |
| |
| |
| struct FPU |
| { |
| union { |
| uint32_t s[32]; |
| uint64_t d[16]; |
| } floats; |
| uint32_t fpscr; |
| }; |
| |
| // struct NeonReg |
| // { |
| // uint8_t bytes[16]; |
| // }; |
| // |
| // struct VFPv3 |
| // { |
| // union { |
| // uint32_t s[32]; |
| // uint64_t d[32]; |
| // NeonReg q[16]; |
| // } v3; |
| // uint32_t fpscr; |
| // }; |
| |
| struct EXC |
| { |
| uint32_t exception; |
| uint32_t fsr; /* Fault status */ |
| uint32_t far; /* Virtual Fault Address */ |
| }; |
| |
| struct DBG |
| { |
| uint32_t bvr[16]; |
| uint32_t bcr[16]; |
| uint32_t wvr[16]; |
| uint32_t wcr[16]; |
| }; |
| |
| static void |
| LogDBGRegisters (lldb_private::Log *log, const DBG& dbg); |
| |
| protected: |
| |
| typedef enum |
| { |
| GPRRegSet = 1, |
| FPURegSet = 2, |
| EXCRegSet = 3, |
| DBGRegSet = 4, |
| }; |
| |
| enum |
| { |
| GPRWordCount = sizeof(GPR)/sizeof(uint32_t), |
| FPUWordCount = sizeof(FPU)/sizeof(uint32_t), |
| EXCWordCount = sizeof(EXC)/sizeof(uint32_t), |
| DBGWordCount = sizeof(DBG)/sizeof(uint32_t) |
| }; |
| |
| enum |
| { |
| Read = 0, |
| Write = 1, |
| kNumErrors = 2 |
| }; |
| |
| GPR gpr; |
| FPU fpu; |
| EXC exc; |
| DBG dbg; |
| kern_return_t gpr_errs[2]; // Read/Write errors |
| kern_return_t fpu_errs[2]; // Read/Write errors |
| kern_return_t exc_errs[2]; // Read/Write errors |
| kern_return_t dbg_errs[2]; // Read/Write errors |
| |
| void |
| InvalidateAllRegisterStates() |
| { |
| SetError (GPRRegSet, Read, -1); |
| SetError (FPURegSet, Read, -1); |
| SetError (EXCRegSet, Read, -1); |
| } |
| |
| kern_return_t |
| GetError (int flavor, uint32_t err_idx) const |
| { |
| if (err_idx < kNumErrors) |
| { |
| switch (flavor) |
| { |
| // When getting all errors, just OR all values together to see if |
| // we got any kind of error. |
| case GPRRegSet: return gpr_errs[err_idx]; |
| case FPURegSet: return fpu_errs[err_idx]; |
| case EXCRegSet: return exc_errs[err_idx]; |
| case DBGRegSet: return dbg_errs[err_idx]; |
| default: break; |
| } |
| } |
| return -1; |
| } |
| |
| bool |
| SetError (int flavor, uint32_t err_idx, kern_return_t err) |
| { |
| if (err_idx < kNumErrors) |
| { |
| switch (flavor) |
| { |
| case GPRRegSet: |
| gpr_errs[err_idx] = err; |
| return true; |
| |
| case FPURegSet: |
| fpu_errs[err_idx] = err; |
| return true; |
| |
| case EXCRegSet: |
| exc_errs[err_idx] = err; |
| return true; |
| |
| case DBGRegSet: |
| exc_errs[err_idx] = err; |
| return true; |
| |
| default: break; |
| } |
| } |
| return false; |
| } |
| |
| bool |
| RegisterSetIsCached (int set) const |
| { |
| return GetError(set, Read) == KERN_SUCCESS; |
| } |
| |
| kern_return_t |
| ReadGPR (bool force); |
| |
| kern_return_t |
| ReadFPU (bool force); |
| |
| kern_return_t |
| ReadEXC (bool force); |
| |
| kern_return_t |
| ReadDBG (bool force); |
| |
| kern_return_t |
| WriteGPR (); |
| |
| kern_return_t |
| WriteFPU (); |
| |
| kern_return_t |
| WriteEXC (); |
| |
| kern_return_t |
| WriteDBG (); |
| |
| kern_return_t |
| ReadRegisterSet (uint32_t set, bool force); |
| |
| kern_return_t |
| WriteRegisterSet (uint32_t set); |
| |
| static uint32_t |
| GetRegisterNumber (uint32_t reg_kind, uint32_t reg_num); |
| |
| static int |
| GetSetForNativeRegNum (int reg_num); |
| |
| static size_t |
| GetRegisterInfosCount (); |
| |
| static const lldb::RegisterInfo * |
| GetRegisterInfos (); |
| }; |
| |
| #endif // liblldb_RegisterContextMach_arm_h_ |