1 //===-- RegisterContextDarwin_arm64.h -----------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #ifndef liblldb_RegisterContextDarwin_arm64_h_
11 #define liblldb_RegisterContextDarwin_arm64_h_
15 // Other libraries and framework includes
17 #include "lldb/lldb-private.h"
18 #include "lldb/Target/RegisterContext.h"
20 // Break only in privileged or user mode
21 #define S_RSVD ((uint32_t)(0u << 1))
22 #define S_PRIV ((uint32_t)(1u << 1))
23 #define S_USER ((uint32_t)(2u << 1))
24 #define S_PRIV_USER ((S_PRIV) | (S_USER))
26 #define WCR_ENABLE ((uint32_t)(1u))
28 // Watchpoint load/store
29 #define WCR_LOAD ((uint32_t)(1u << 3))
30 #define WCR_STORE ((uint32_t)(1u << 4))
32 class RegisterContextDarwin_arm64 : public lldb_private::RegisterContext
35 RegisterContextDarwin_arm64(lldb_private::Thread &thread, uint32_t concrete_frame_idx);
37 ~RegisterContextDarwin_arm64() override;
40 InvalidateAllRegisters() override;
43 GetRegisterCount() override;
45 const lldb_private::RegisterInfo *
46 GetRegisterInfoAtIndex(size_t reg) override;
49 GetRegisterSetCount() override;
51 const lldb_private::RegisterSet *
52 GetRegisterSet(size_t set) override;
55 ReadRegister(const lldb_private::RegisterInfo *reg_info,
56 lldb_private::RegisterValue ®_value) override;
59 WriteRegister(const lldb_private::RegisterInfo *reg_info,
60 const lldb_private::RegisterValue ®_value) override;
63 ReadAllRegisterValues(lldb::DataBufferSP &data_sp) override;
66 WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;
69 ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind, uint32_t num) override;
72 NumSupportedHardwareWatchpoints() override;
75 SetHardwareWatchpoint(lldb::addr_t addr, size_t size, bool read, bool write) override;
78 ClearHardwareWatchpoint(uint32_t hw_index) override;
80 // mirrors <mach/arm/thread_status.h> arm_thread_state64_t
83 uint64_t x[29]; // x0-x28
88 uint32_t cpsr; // cpsr
96 // mirrors <mach/arm/thread_status.h> arm_neon_state64_t
104 // mirrors <mach/arm/thread_status.h> arm_exception_state64_t
107 uint64_t far; // Virtual Fault Address
108 uint32_t esr; // Exception syndrome
109 uint32_t exception; // number of arm exception token
112 // mirrors <mach/arm/thread_status.h> arm_debug_state64_t
123 LogDBGRegisters (lldb_private::Log *log, const DBG& dbg);
128 GPRRegSet = 6, // ARM_THREAD_STATE64
129 FPURegSet = 17, // ARM_NEON_STATE64
130 EXCRegSet = 7, // ARM_EXCEPTION_STATE64
131 DBGRegSet = 15 // ARM_DEBUG_STATE64
136 GPRWordCount = sizeof(GPR)/sizeof(uint32_t), // ARM_THREAD_STATE64_COUNT
137 FPUWordCount = sizeof(FPU)/sizeof(uint32_t), // ARM_NEON_STATE64_COUNT
138 EXCWordCount = sizeof(EXC)/sizeof(uint32_t), // ARM_EXCEPTION_STATE64_COUNT
139 DBGWordCount = sizeof(DBG)/sizeof(uint32_t) // ARM_DEBUG_STATE64_COUNT
153 int gpr_errs[2]; // Read/Write errors
154 int fpu_errs[2]; // Read/Write errors
155 int exc_errs[2]; // Read/Write errors
156 int dbg_errs[2]; // Read/Write errors
159 InvalidateAllRegisterStates()
161 SetError (GPRRegSet, Read, -1);
162 SetError (FPURegSet, Read, -1);
163 SetError (EXCRegSet, Read, -1);
167 GetError (int flavor, uint32_t err_idx) const
169 if (err_idx < kNumErrors)
173 // When getting all errors, just OR all values together to see if
174 // we got any kind of error.
175 case GPRRegSet: return gpr_errs[err_idx];
176 case FPURegSet: return fpu_errs[err_idx];
177 case EXCRegSet: return exc_errs[err_idx];
178 case DBGRegSet: return dbg_errs[err_idx];
186 SetError (int flavor, uint32_t err_idx, int err)
188 if (err_idx < kNumErrors)
193 gpr_errs[err_idx] = err;
197 fpu_errs[err_idx] = err;
201 exc_errs[err_idx] = err;
205 exc_errs[err_idx] = err;
215 RegisterSetIsCached (int set) const
217 return GetError(set, Read) == 0;
221 ReadGPR (bool force);
224 ReadFPU (bool force);
227 ReadEXC (bool force);
230 ReadDBG (bool force);
245 // Subclasses override these to do the actual reading.
247 DoReadGPR (lldb::tid_t tid, int flavor, GPR &gpr)
253 DoReadFPU (lldb::tid_t tid, int flavor, FPU &fpu) = 0;
256 DoReadEXC (lldb::tid_t tid, int flavor, EXC &exc) = 0;
259 DoReadDBG (lldb::tid_t tid, int flavor, DBG &dbg) = 0;
262 DoWriteGPR (lldb::tid_t tid, int flavor, const GPR &gpr) = 0;
265 DoWriteFPU (lldb::tid_t tid, int flavor, const FPU &fpu) = 0;
268 DoWriteEXC (lldb::tid_t tid, int flavor, const EXC &exc) = 0;
271 DoWriteDBG (lldb::tid_t tid, int flavor, const DBG &dbg) = 0;
274 ReadRegisterSet (uint32_t set, bool force);
277 WriteRegisterSet (uint32_t set);
280 GetRegisterNumber (uint32_t reg_kind, uint32_t reg_num);
283 GetSetForNativeRegNum (int reg_num);
286 GetRegisterInfosCount ();
288 static const lldb_private::RegisterInfo *
292 #endif // liblldb_RegisterContextDarwin_arm64_h_