1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
|
//===-- RegisterContextDarwin_x86_64.h --------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef liblldb_RegisterContextDarwin_x86_64_h_
#define liblldb_RegisterContextDarwin_x86_64_h_
#include "lldb/Target/RegisterContext.h"
#include "lldb/lldb-private.h"
class RegisterContextDarwin_x86_64 : public lldb_private::RegisterContext {
public:
RegisterContextDarwin_x86_64(lldb_private::Thread &thread,
uint32_t concrete_frame_idx);
~RegisterContextDarwin_x86_64() override;
void InvalidateAllRegisters() override;
size_t GetRegisterCount() override;
const lldb_private::RegisterInfo *GetRegisterInfoAtIndex(size_t reg) override;
size_t GetRegisterSetCount() override;
const lldb_private::RegisterSet *GetRegisterSet(size_t set) override;
bool ReadRegister(const lldb_private::RegisterInfo *reg_info,
lldb_private::RegisterValue &value) override;
bool WriteRegister(const lldb_private::RegisterInfo *reg_info,
const lldb_private::RegisterValue &value) override;
bool ReadAllRegisterValues(lldb::DataBufferSP &data_sp) override;
bool WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;
uint32_t ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind,
uint32_t num) override;
bool HardwareSingleStep(bool enable) override;
struct GPR {
uint64_t rax;
uint64_t rbx;
uint64_t rcx;
uint64_t rdx;
uint64_t rdi;
uint64_t rsi;
uint64_t rbp;
uint64_t rsp;
uint64_t r8;
uint64_t r9;
uint64_t r10;
uint64_t r11;
uint64_t r12;
uint64_t r13;
uint64_t r14;
uint64_t r15;
uint64_t rip;
uint64_t rflags;
uint64_t cs;
uint64_t fs;
uint64_t gs;
};
struct MMSReg {
uint8_t bytes[10];
uint8_t pad[6];
};
struct XMMReg {
uint8_t bytes[16];
};
struct FPU {
uint32_t pad[2];
uint16_t fcw; // "fctrl"
uint16_t fsw; // "fstat"
uint8_t ftw; // "ftag"
uint8_t pad1;
uint16_t fop; // "fop"
uint32_t ip; // "fioff"
uint16_t cs; // "fiseg"
uint16_t pad2;
uint32_t dp; // "fooff"
uint16_t ds; // "foseg"
uint16_t pad3;
uint32_t mxcsr;
uint32_t mxcsrmask;
MMSReg stmm[8];
XMMReg xmm[16];
uint8_t pad4[6 * 16];
int pad5;
};
struct EXC {
uint32_t trapno;
uint32_t err;
uint64_t faultvaddr;
};
protected:
enum { GPRRegSet = 4, FPURegSet = 5, EXCRegSet = 6 };
enum {
GPRWordCount = sizeof(GPR) / sizeof(uint32_t),
FPUWordCount = sizeof(FPU) / sizeof(uint32_t),
EXCWordCount = sizeof(EXC) / sizeof(uint32_t)
};
enum { Read = 0, Write = 1, kNumErrors = 2 };
GPR gpr;
FPU fpu;
EXC exc;
int gpr_errs[2]; // Read/Write errors
int fpu_errs[2]; // Read/Write errors
int exc_errs[2]; // Read/Write errors
void InvalidateAllRegisterStates() {
SetError(GPRRegSet, Read, -1);
SetError(FPURegSet, Read, -1);
SetError(EXCRegSet, Read, -1);
}
int 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];
default:
break;
}
}
return -1;
}
bool SetError(int flavor, uint32_t err_idx, int 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;
default:
break;
}
}
return false;
}
bool RegisterSetIsCached(int set) const { return GetError(set, Read) == 0; }
void LogGPR(lldb_private::Log *log, const char *format, ...);
int ReadGPR(bool force);
int ReadFPU(bool force);
int ReadEXC(bool force);
int WriteGPR();
int WriteFPU();
int WriteEXC();
// Subclasses override these to do the actual reading.
virtual int DoReadGPR(lldb::tid_t tid, int flavor, GPR &gpr) = 0;
virtual int DoReadFPU(lldb::tid_t tid, int flavor, FPU &fpu) = 0;
virtual int DoReadEXC(lldb::tid_t tid, int flavor, EXC &exc) = 0;
virtual int DoWriteGPR(lldb::tid_t tid, int flavor, const GPR &gpr) = 0;
virtual int DoWriteFPU(lldb::tid_t tid, int flavor, const FPU &fpu) = 0;
virtual int DoWriteEXC(lldb::tid_t tid, int flavor, const EXC &exc) = 0;
int ReadRegisterSet(uint32_t set, bool force);
int 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_private::RegisterInfo *GetRegisterInfos();
};
#endif // liblldb_RegisterContextDarwin_x86_64_h_
|
