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
36 RegisterContextDarwin_arm64(lldb_private::Thread &thread, uint32_t concrete_frame_idx);
39 ~RegisterContextDarwin_arm64();
42 InvalidateAllRegisters ();
47 virtual const lldb_private::RegisterInfo *
48 GetRegisterInfoAtIndex (size_t reg);
51 GetRegisterSetCount ();
53 virtual const lldb_private::RegisterSet *
54 GetRegisterSet (size_t set);
57 ReadRegister (const lldb_private::RegisterInfo *reg_info,
58 lldb_private::RegisterValue ®_value);
61 WriteRegister (const lldb_private::RegisterInfo *reg_info,
62 const lldb_private::RegisterValue ®_value);
65 ReadAllRegisterValues (lldb::DataBufferSP &data_sp);
68 WriteAllRegisterValues (const lldb::DataBufferSP &data_sp);
71 ConvertRegisterKindToRegisterNumber (lldb::RegisterKind kind, uint32_t num);
74 NumSupportedHardwareWatchpoints ();
77 SetHardwareWatchpoint (lldb::addr_t addr, size_t size, bool read, bool write);
80 ClearHardwareWatchpoint (uint32_t hw_index);
82 // mirrors <mach/arm/thread_status.h> arm_thread_state64_t
85 uint64_t x[29]; // x0-x28
90 uint32_t cpsr; // cpsr
99 // mirrors <mach/arm/thread_status.h> arm_neon_state64_t
107 // mirrors <mach/arm/thread_status.h> arm_exception_state64_t
110 uint64_t far; // Virtual Fault Address
111 uint32_t esr; // Exception syndrome
112 uint32_t exception; // number of arm exception token
115 // mirrors <mach/arm/thread_status.h> arm_debug_state64_t
126 LogDBGRegisters (lldb_private::Log *log, const DBG& dbg);
132 GPRRegSet = 6, // ARM_THREAD_STATE64
133 FPURegSet = 17, // ARM_NEON_STATE64
134 EXCRegSet = 7, // ARM_EXCEPTION_STATE64
135 DBGRegSet = 15 // ARM_DEBUG_STATE64
140 GPRWordCount = sizeof(GPR)/sizeof(uint32_t), // ARM_THREAD_STATE64_COUNT
141 FPUWordCount = sizeof(FPU)/sizeof(uint32_t), // ARM_NEON_STATE64_COUNT
142 EXCWordCount = sizeof(EXC)/sizeof(uint32_t), // ARM_EXCEPTION_STATE64_COUNT
143 DBGWordCount = sizeof(DBG)/sizeof(uint32_t) // ARM_DEBUG_STATE64_COUNT
157 int gpr_errs[2]; // Read/Write errors
158 int fpu_errs[2]; // Read/Write errors
159 int exc_errs[2]; // Read/Write errors
160 int dbg_errs[2]; // Read/Write errors
163 InvalidateAllRegisterStates()
165 SetError (GPRRegSet, Read, -1);
166 SetError (FPURegSet, Read, -1);
167 SetError (EXCRegSet, Read, -1);
171 GetError (int flavor, uint32_t err_idx) const
173 if (err_idx < kNumErrors)
177 // When getting all errors, just OR all values together to see if
178 // we got any kind of error.
179 case GPRRegSet: return gpr_errs[err_idx];
180 case FPURegSet: return fpu_errs[err_idx];
181 case EXCRegSet: return exc_errs[err_idx];
182 case DBGRegSet: return dbg_errs[err_idx];
190 SetError (int flavor, uint32_t err_idx, int err)
192 if (err_idx < kNumErrors)
197 gpr_errs[err_idx] = err;
201 fpu_errs[err_idx] = err;
205 exc_errs[err_idx] = err;
209 exc_errs[err_idx] = err;
219 RegisterSetIsCached (int set) const
221 return GetError(set, Read) == 0;
225 ReadGPR (bool force);
228 ReadFPU (bool force);
231 ReadEXC (bool force);
234 ReadDBG (bool force);
249 // Subclasses override these to do the actual reading.
251 DoReadGPR (lldb::tid_t tid, int flavor, GPR &gpr)
257 DoReadFPU (lldb::tid_t tid, int flavor, FPU &fpu) = 0;
260 DoReadEXC (lldb::tid_t tid, int flavor, EXC &exc) = 0;
263 DoReadDBG (lldb::tid_t tid, int flavor, DBG &dbg) = 0;
266 DoWriteGPR (lldb::tid_t tid, int flavor, const GPR &gpr) = 0;
269 DoWriteFPU (lldb::tid_t tid, int flavor, const FPU &fpu) = 0;
272 DoWriteEXC (lldb::tid_t tid, int flavor, const EXC &exc) = 0;
275 DoWriteDBG (lldb::tid_t tid, int flavor, const DBG &dbg) = 0;
278 ReadRegisterSet (uint32_t set, bool force);
281 WriteRegisterSet (uint32_t set);
284 GetRegisterNumber (uint32_t reg_kind, uint32_t reg_num);
287 GetSetForNativeRegNum (int reg_num);
290 GetRegisterInfosCount ();
292 static const lldb_private::RegisterInfo *
296 #endif // liblldb_RegisterContextDarwin_arm64_h_