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
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
|
#include "debugger/debugger.h"
#include "core/log.h"
#include <algorithm>
#include <source_location>
namespace Hsdbg
{
namespace
{
// every call site reports itself, so the stubs stay one line each until
// there is an lldb session behind them
auto not_implemented(std::source_location location = std::source_location::current())
-> std::unexpected<std::string>
{
Log::warn("{} is not implemented yet", location.function_name());
return fail("{} is not implemented yet", location.function_name());
}
}
Debugger::Debugger()
{
Log::info("debugger: ready");
}
Debugger::~Debugger()
{
unload_target();
}
auto Debugger::load_target(const std::filesystem::path& executable) -> Result<void>
{
std::error_code error;
if (!std::filesystem::exists(executable, error))
return fail("'{}' does not exist", executable.string());
if (!std::filesystem::is_regular_file(executable, error))
return fail("'{}' is not a file", executable.string());
m_target_path = std::filesystem::absolute(executable, error);
if (error)
m_target_path = executable;
m_process_id = 0;
m_stop_reason = StopReason::None;
set_state(TargetState::Loaded);
Log::info("debugger: loaded target '{}'", m_target_path.string());
return {};
}
auto Debugger::unload_target() -> void
{
m_target_path.clear();
m_process_id = 0;
m_stop_reason = StopReason::None;
m_threads.clear();
m_call_stack.clear();
m_locals.clear();
m_registers.clear();
m_console_output.clear();
m_selected_thread = 0;
m_selected_frame = 0;
for (Breakpoint& breakpoint : m_breakpoints)
{
breakpoint.resolved = false;
breakpoint.hit_count = 0;
breakpoint.address = 0;
}
set_state(TargetState::NoTarget);
}
auto Debugger::launch(const LaunchSpec& spec) -> Result<void>
{
(void)spec;
return not_implemented();
}
auto Debugger::attach(uint64_t process_id) -> Result<void>
{
(void)process_id;
return not_implemented();
}
auto Debugger::detach() -> Result<void>
{
return not_implemented();
}
auto Debugger::terminate() -> Result<void>
{
return not_implemented();
}
auto Debugger::resume() -> Result<void>
{
return not_implemented();
}
auto Debugger::pause() -> Result<void>
{
return not_implemented();
}
auto Debugger::step_over(StepMode mode) -> Result<void>
{
(void)mode;
return not_implemented();
}
auto Debugger::step_into(StepMode mode) -> Result<void>
{
(void)mode;
return not_implemented();
}
auto Debugger::step_out() -> Result<void>
{
return not_implemented();
}
auto Debugger::run_to(const std::filesystem::path& file, uint32_t line) -> Result<void>
{
(void)file;
(void)line;
return not_implemented();
}
auto Debugger::add_breakpoint(const std::filesystem::path& file, uint32_t line) -> uint32_t
{
const auto existing = std::ranges::find_if(m_breakpoints, [&](const Breakpoint& candidate)
{
return candidate.file == file && candidate.line == line;
});
if (existing != m_breakpoints.end())
return existing->id;
Breakpoint breakpoint;
breakpoint.id = m_next_breakpoint_id++;
breakpoint.file = file;
breakpoint.line = line;
m_breakpoints.push_back(std::move(breakpoint));
Log::info("debugger: breakpoint {} at {}:{}",
m_breakpoints.back().id,
file.filename().string(),
line);
return m_breakpoints.back().id;
}
auto Debugger::add_function_breakpoint(std::string_view function) -> uint32_t
{
const auto existing = std::ranges::find_if(m_breakpoints, [&](const Breakpoint& candidate)
{
return candidate.function == function && candidate.line == 0;
});
if (existing != m_breakpoints.end())
return existing->id;
Breakpoint breakpoint;
breakpoint.id = m_next_breakpoint_id++;
breakpoint.function = function;
m_breakpoints.push_back(std::move(breakpoint));
Log::info("debugger: breakpoint {} at {}()", m_breakpoints.back().id, function);
return m_breakpoints.back().id;
}
auto Debugger::remove_breakpoint(uint32_t id) -> bool
{
const auto entry = std::ranges::find(m_breakpoints, id, &Breakpoint::id);
if (entry == m_breakpoints.end())
return false;
m_breakpoints.erase(entry);
Log::info("debugger: removed breakpoint {}", id);
return true;
}
auto Debugger::set_breakpoint_enabled(uint32_t id, bool enabled) -> bool
{
Breakpoint* breakpoint = find_breakpoint(id);
if (breakpoint == nullptr)
return false;
breakpoint->enabled = enabled;
return true;
}
auto Debugger::clear_breakpoints() -> void
{
m_breakpoints.clear();
}
auto Debugger::find_breakpoint(uint32_t id) -> Breakpoint*
{
const auto entry = std::ranges::find(m_breakpoints, id, &Breakpoint::id);
return entry == m_breakpoints.end() ? nullptr : &*entry;
}
auto Debugger::evaluate(std::string_view expression) -> Result<std::string>
{
(void)expression;
return not_implemented();
}
auto Debugger::read_memory(uint64_t address, size_t size) -> Result<std::vector<uint8_t>>
{
(void)address;
(void)size;
return not_implemented();
}
auto Debugger::select_thread(uint64_t thread_id) -> bool
{
const auto entry = std::ranges::find(m_threads, thread_id, &Thread::id);
if (entry == m_threads.end())
return false;
m_selected_thread = thread_id;
m_selected_frame = 0;
return true;
}
auto Debugger::select_frame(uint32_t frame_index) -> bool
{
if (frame_index >= m_call_stack.size())
return false;
m_selected_frame = frame_index;
return true;
}
auto Debugger::update() -> void
{
}
auto Debugger::set_state(TargetState state) -> void
{
if (m_state == state)
return;
Log::debug("debugger: {} -> {}", to_string(m_state), to_string(state));
m_state = state;
}
}
|
