1 //===-- RegisterContextDarwin_arm.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_arm_h_
11 #define liblldb_RegisterContextDarwin_arm_h_
15 // Other libraries and framework includes
17 #include "lldb/lldb-private.h"
18 #include "lldb/Target/RegisterContext.h"
20 // BCR address match type
21 #define BCR_M_IMVA_MATCH ((uint32_t)(0u << 21))
22 #define BCR_M_CONTEXT_ID_MATCH ((uint32_t)(1u << 21))
23 #define BCR_M_IMVA_MISMATCH ((uint32_t)(2u << 21))
24 #define BCR_M_RESERVED ((uint32_t)(3u << 21))
26 // Link a BVR/BCR or WVR/WCR pair to another
27 #define E_ENABLE_LINKING ((uint32_t)(1u << 20))
29 // Byte Address Select
30 #define BAS_IMVA_PLUS_0 ((uint32_t)(1u << 5))
31 #define BAS_IMVA_PLUS_1 ((uint32_t)(1u << 6))
32 #define BAS_IMVA_PLUS_2 ((uint32_t)(1u << 7))
33 #define BAS_IMVA_PLUS_3 ((uint32_t)(1u << 8))
34 #define BAS_IMVA_0_1 ((uint32_t)(3u << 5))
35 #define BAS_IMVA_2_3 ((uint32_t)(3u << 7))
36 #define BAS_IMVA_ALL ((uint32_t)(0xfu << 5))
38 // Break only in privileged or user mode
39 #define S_RSVD ((uint32_t)(0u << 1))
40 #define S_PRIV ((uint32_t)(1u << 1))
41 #define S_USER ((uint32_t)(2u << 1))
42 #define S_PRIV_USER ((S_PRIV) | (S_USER))
44 #define BCR_ENABLE ((uint32_t)(1u))
45 #define WCR_ENABLE ((uint32_t)(1u))
47 // Watchpoint load/store
48 #define WCR_LOAD ((uint32_t)(1u << 3))
49 #define WCR_STORE ((uint32_t)(1u << 4))
51 class RegisterContextDarwin_arm : public lldb_private::RegisterContext
54 RegisterContextDarwin_arm(lldb_private::Thread &thread, uint32_t concrete_frame_idx);
56 ~RegisterContextDarwin_arm() override;
59 InvalidateAllRegisters() override;
62 GetRegisterCount() override;
64 const lldb_private::RegisterInfo *
65 GetRegisterInfoAtIndex(size_t reg) override;
68 GetRegisterSetCount() override;
70 const lldb_private::RegisterSet *
71 GetRegisterSet(size_t set) override;
74 ReadRegister(const lldb_private::RegisterInfo *reg_info,
75 lldb_private::RegisterValue ®_value) override;
78 WriteRegister(const lldb_private::RegisterInfo *reg_info,
79 const lldb_private::RegisterValue ®_value) override;
82 ReadAllRegisterValues(lldb::DataBufferSP &data_sp) override;
85 WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;
88 ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind, uint32_t num) override;
91 NumSupportedHardwareBreakpoints() override;
94 SetHardwareBreakpoint(lldb::addr_t addr, size_t size) override;
97 ClearHardwareBreakpoint(uint32_t hw_idx) override;
100 NumSupportedHardwareWatchpoints() override;
103 SetHardwareWatchpoint(lldb::addr_t addr, size_t size, bool read, bool write) override;
106 ClearHardwareWatchpoint(uint32_t hw_index) override;
110 uint32_t r[16]; // R0-R15
111 uint32_t cpsr; // CPSR
124 QReg q[16]; // the 128-bit NEON registers
131 // uint8_t bytes[16];
147 uint32_t fsr; /* Fault status */
148 uint32_t far; /* Virtual Fault Address */
160 LogDBGRegisters (lldb_private::Log *log, const DBG& dbg);
165 GPRRegSet = 1, // ARM_THREAD_STATE
166 FPURegSet = 2, // ARM_VFP_STATE
167 EXCRegSet = 3, // ARM_EXCEPTION_STATE
168 DBGRegSet = 4 // ARM_DEBUG_STATE
173 GPRWordCount = sizeof(GPR)/sizeof(uint32_t),
174 FPUWordCount = sizeof(FPU)/sizeof(uint32_t),
175 EXCWordCount = sizeof(EXC)/sizeof(uint32_t),
176 DBGWordCount = sizeof(DBG)/sizeof(uint32_t)
190 int gpr_errs[2]; // Read/Write errors
191 int fpu_errs[2]; // Read/Write errors
192 int exc_errs[2]; // Read/Write errors
193 int dbg_errs[2]; // Read/Write errors
196 InvalidateAllRegisterStates()
198 SetError (GPRRegSet, Read, -1);
199 SetError (FPURegSet, Read, -1);
200 SetError (EXCRegSet, Read, -1);
204 GetError (int flavor, uint32_t err_idx) const
206 if (err_idx < kNumErrors)
210 // When getting all errors, just OR all values together to see if
211 // we got any kind of error.
212 case GPRRegSet: return gpr_errs[err_idx];
213 case FPURegSet: return fpu_errs[err_idx];
214 case EXCRegSet: return exc_errs[err_idx];
215 case DBGRegSet: return dbg_errs[err_idx];
223 SetError (int flavor, uint32_t err_idx, int err)
225 if (err_idx < kNumErrors)
230 gpr_errs[err_idx] = err;
234 fpu_errs[err_idx] = err;
238 exc_errs[err_idx] = err;
242 exc_errs[err_idx] = err;
252 RegisterSetIsCached (int set) const
254 return GetError(set, Read) == 0;
258 ReadGPR (bool force);
261 ReadFPU (bool force);
264 ReadEXC (bool force);
267 ReadDBG (bool force);
282 // Subclasses override these to do the actual reading.
284 DoReadGPR (lldb::tid_t tid, int flavor, GPR &gpr)
290 DoReadFPU (lldb::tid_t tid, int flavor, FPU &fpu) = 0;
293 DoReadEXC (lldb::tid_t tid, int flavor, EXC &exc) = 0;
296 DoReadDBG (lldb::tid_t tid, int flavor, DBG &dbg) = 0;
299 DoWriteGPR (lldb::tid_t tid, int flavor, const GPR &gpr) = 0;
302 DoWriteFPU (lldb::tid_t tid, int flavor, const FPU &fpu) = 0;
305 DoWriteEXC (lldb::tid_t tid, int flavor, const EXC &exc) = 0;
308 DoWriteDBG (lldb::tid_t tid, int flavor, const DBG &dbg) = 0;
311 ReadRegisterSet (uint32_t set, bool force);
314 WriteRegisterSet (uint32_t set);
317 GetRegisterNumber (uint32_t reg_kind, uint32_t reg_num);
320 GetSetForNativeRegNum (int reg_num);
323 GetRegisterInfosCount ();
325 static const lldb_private::RegisterInfo *
329 #endif // liblldb_RegisterContextDarwin_arm_h_