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
|
/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "stack_map.h"
#include <iomanip>
#include <stdint.h>
#include "art_method.h"
#include "base/indenter.h"
#include "scoped_thread_state_change-inl.h"
namespace art {
std::ostream& operator<<(std::ostream& stream, const DexRegisterLocation& reg) {
using Kind = DexRegisterLocation::Kind;
switch (reg.GetKind()) {
case Kind::kNone:
return stream << "None";
case Kind::kInStack:
return stream << "sp+" << reg.GetValue();
case Kind::kInRegister:
return stream << "r" << reg.GetValue();
case Kind::kInRegisterHigh:
return stream << "r" << reg.GetValue() << "/hi";
case Kind::kInFpuRegister:
return stream << "f" << reg.GetValue();
case Kind::kInFpuRegisterHigh:
return stream << "f" << reg.GetValue() << "/hi";
case Kind::kConstant:
return stream << "#" << reg.GetValue();
default:
return stream << "DexRegisterLocation(" << static_cast<uint32_t>(reg.GetKind())
<< "," << reg.GetValue() << ")";
}
}
static void DumpDexRegisterMap(VariableIndentationOutputStream* vios,
const DexRegisterMap& map) {
if (map.IsValid()) {
ScopedIndentation indent1(vios);
for (size_t i = 0; i < map.size(); ++i) {
if (map.IsDexRegisterLive(i)) {
vios->Stream() << "v" << i << ":" << map.Get(i) << " ";
}
}
vios->Stream() << "\n";
}
}
template<uint32_t kNumColumns>
static void DumpTable(VariableIndentationOutputStream* vios,
const char* table_name,
const BitTable<kNumColumns>& table,
bool verbose,
bool is_mask = false) {
if (table.NumRows() != 0) {
vios->Stream() << table_name << " BitSize=" << table.NumRows() * table.NumRowBits();
vios->Stream() << " Rows=" << table.NumRows() << " Bits={";
for (size_t c = 0; c < table.NumColumns(); c++) {
vios->Stream() << (c != 0 ? " " : "");
vios->Stream() << table.NumColumnBits(c);
}
vios->Stream() << "}\n";
if (verbose) {
ScopedIndentation indent1(vios);
for (size_t r = 0; r < table.NumRows(); r++) {
vios->Stream() << "[" << std::right << std::setw(3) << r << "]={";
for (size_t c = 0; c < table.NumColumns(); c++) {
vios->Stream() << (c != 0 ? " " : "");
if (is_mask) {
BitMemoryRegion bits = table.GetBitMemoryRegion(r, c);
for (size_t b = 0, e = bits.size_in_bits(); b < e; b++) {
vios->Stream() << bits.LoadBit(e - b - 1);
}
} else {
vios->Stream() << std::right << std::setw(8) << static_cast<int32_t>(table.Get(r, c));
}
}
vios->Stream() << "}\n";
}
}
}
}
void CodeInfo::Dump(VariableIndentationOutputStream* vios,
uint32_t code_offset,
uint16_t num_dex_registers,
bool verbose,
InstructionSet instruction_set,
const MethodInfo& method_info) const {
vios->Stream()
<< "CodeInfo"
<< " BitSize=" << size_ * kBitsPerByte
<< "\n";
ScopedIndentation indent1(vios);
DumpTable(vios, "StackMaps", stack_maps_, verbose);
DumpTable(vios, "RegisterMasks", register_masks_, verbose);
DumpTable(vios, "StackMasks", stack_masks_, verbose, true /* is_mask */);
DumpTable(vios, "InvokeInfos", invoke_infos_, verbose);
DumpTable(vios, "InlineInfos", inline_infos_, verbose);
DumpTable(vios, "DexRegisterMasks", dex_register_masks_, verbose, true /* is_mask */);
DumpTable(vios, "DexRegisterMaps", dex_register_maps_, verbose);
DumpTable(vios, "DexRegisterCatalog", dex_register_catalog_, verbose);
// Display stack maps along with (live) Dex register maps.
if (verbose) {
for (size_t i = 0; i < GetNumberOfStackMaps(); ++i) {
StackMap stack_map = GetStackMapAt(i);
stack_map.Dump(vios, *this, method_info, code_offset, num_dex_registers, instruction_set);
}
}
}
void StackMap::Dump(VariableIndentationOutputStream* vios,
const CodeInfo& code_info,
const MethodInfo& method_info,
uint32_t code_offset,
uint16_t number_of_dex_registers,
InstructionSet instruction_set) const {
const uint32_t pc_offset = GetNativePcOffset(instruction_set);
vios->Stream()
<< "StackMap[" << Row() << "]"
<< std::hex
<< " (native_pc=0x" << code_offset + pc_offset
<< ", dex_pc=0x" << GetDexPc()
<< ", register_mask=0x" << code_info.GetRegisterMaskOf(*this)
<< std::dec
<< ", stack_mask=0b";
BitMemoryRegion stack_mask = code_info.GetStackMaskOf(*this);
for (size_t i = 0, e = stack_mask.size_in_bits(); i < e; ++i) {
vios->Stream() << stack_mask.LoadBit(e - i - 1);
}
vios->Stream() << ")\n";
DumpDexRegisterMap(vios, code_info.GetDexRegisterMapOf(*this, number_of_dex_registers));
if (HasInlineInfo()) {
InlineInfo inline_info = code_info.GetInlineInfoOf(*this);
// We do not know the length of the dex register maps of inlined frames
// at this level, so we just pass null to `InlineInfo::Dump` to tell
// it not to look at these maps.
inline_info.Dump(vios, code_info, method_info, nullptr);
}
}
void InlineInfo::Dump(VariableIndentationOutputStream* vios,
const CodeInfo& code_info,
const MethodInfo& method_info,
uint16_t number_of_dex_registers[]) const {
for (size_t i = 0; i < GetDepth(); ++i) {
vios->Stream()
<< "InlineInfo[" << Row() + i << "]"
<< " (depth=" << i
<< std::hex
<< ", dex_pc=0x" << GetDexPcAtDepth(i);
if (EncodesArtMethodAtDepth(i)) {
ScopedObjectAccess soa(Thread::Current());
vios->Stream() << ", method=" << GetArtMethodAtDepth(i)->PrettyMethod();
} else {
vios->Stream()
<< std::dec
<< ", method_index=" << GetMethodIndexAtDepth(method_info, i);
}
vios->Stream() << ")\n";
if (number_of_dex_registers != nullptr) {
uint16_t vregs = number_of_dex_registers[i];
DumpDexRegisterMap(vios, code_info.GetDexRegisterMapAtDepth(i, *this, vregs));
}
}
}
} // namespace art
|