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
|
/*
* Copyright (C) 2019 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 "src/trace_processor/importers/ftrace/binder_tracker.h"
#include "src/trace_processor/importers/common/process_tracker.h"
#include "src/trace_processor/importers/common/slice_tracker.h"
#include "src/trace_processor/importers/common/track_tracker.h"
#include "src/trace_processor/types/trace_processor_context.h"
#include "perfetto/base/compiler.h"
#include "perfetto/ext/base/string_utils.h"
namespace perfetto {
namespace trace_processor {
namespace {
constexpr int kOneWay = 0x01;
constexpr int kRootObject = 0x04;
constexpr int kStatusCode = 0x08;
constexpr int kAcceptFds = 0x10;
constexpr int kNoFlags = 0;
std::string BinderFlagsToHuman(uint32_t flag) {
std::string str;
if (flag & kOneWay) {
str += "this is a one-way call: async, no return; ";
}
if (flag & kRootObject) {
str += "contents are the components root object; ";
}
if (flag & kStatusCode) {
str += "contents are a 32-bit status code; ";
}
if (flag & kAcceptFds) {
str += "allow replies with file descriptors; ";
}
if (flag == kNoFlags) {
str += "No Flags Set";
}
return str;
}
} // namespace
BinderTracker::BinderTracker(TraceProcessorContext* context)
: context_(context),
binder_category_id_(context->storage->InternString("binder")),
lock_waiting_id_(context->storage->InternString("binder lock waiting")),
lock_held_id_(context->storage->InternString("binder lock held")),
transaction_slice_id_(
context->storage->InternString("binder transaction")),
transaction_async_id_(
context->storage->InternString("binder transaction async")),
reply_id_(context->storage->InternString("binder reply")),
async_rcv_id_(context->storage->InternString("binder async rcv")),
transaction_id_(context->storage->InternString("transaction id")),
dest_node_(context->storage->InternString("destination node")),
dest_process_(context->storage->InternString("destination process")),
dest_thread_(context->storage->InternString("destination thread")),
dest_name_(context->storage->InternString("destination name")),
is_reply_(context->storage->InternString("reply transaction?")),
flags_(context->storage->InternString("flags")),
code_(context->storage->InternString("code")),
calling_tid_(context->storage->InternString("calling tid")),
dest_slice_id_(context->storage->InternString("destination slice id")),
data_size_(context->storage->InternString("data size")),
offsets_size_(context->storage->InternString("offsets size")) {}
BinderTracker::~BinderTracker() = default;
void BinderTracker::Transaction(int64_t ts,
uint32_t tid,
int32_t transaction_id,
int32_t dest_node,
int32_t dest_tgid,
int32_t dest_tid,
bool is_reply,
uint32_t flags,
StringId code) {
UniqueTid src_utid = context_->process_tracker->GetOrCreateThread(tid);
TrackId track_id = context_->track_tracker->InternThreadTrack(src_utid);
auto args_inserter = [this, transaction_id, dest_node, dest_tgid, is_reply,
flags, code,
tid](ArgsTracker::BoundInserter* inserter) {
inserter->AddArg(transaction_id_, Variadic::Integer(transaction_id));
inserter->AddArg(dest_node_, Variadic::Integer(dest_node));
inserter->AddArg(dest_process_, Variadic::Integer(dest_tgid));
inserter->AddArg(is_reply_, Variadic::Boolean(is_reply));
std::string flag_str =
base::IntToHexString(flags) + " " + BinderFlagsToHuman(flags);
inserter->AddArg(flags_, Variadic::String(context_->storage->InternString(
base::StringView(flag_str))));
inserter->AddArg(code_, Variadic::String(code));
inserter->AddArg(calling_tid_, Variadic::UnsignedInteger(tid));
// TODO(hjd): The legacy UI included the calling pid in the args,
// is this necessary? It's complicated in our case because process
// association might not happen until after the binder transaction slices
// have been parsed. We would need to backfill the arg.
};
if (is_reply) {
// Reply slices have accurate dest information, so we can add it.
const auto& thread_table = context_->storage->thread_table();
UniqueTid utid = context_->process_tracker->GetOrCreateThread(
static_cast<uint32_t>(dest_tid));
StringId dest_thread_name = thread_table.name()[utid];
auto dest_args_inserter = [this, dest_tid, &dest_thread_name](
ArgsTracker::BoundInserter* inserter) {
inserter->AddArg(dest_thread_, Variadic::Integer(dest_tid));
inserter->AddArg(dest_name_, Variadic::String(dest_thread_name));
};
context_->slice_tracker->AddArgs(track_id, binder_category_id_, reply_id_,
dest_args_inserter);
context_->slice_tracker->End(ts, track_id, kNullStringId, kNullStringId,
args_inserter);
awaiting_rcv_for_reply_.insert(transaction_id);
return;
}
bool expects_reply = !is_reply && ((flags & kOneWay) == 0);
if (expects_reply) {
context_->slice_tracker->Begin(ts, track_id, binder_category_id_,
transaction_slice_id_, args_inserter);
transaction_await_rcv[transaction_id] = track_id;
} else {
context_->slice_tracker->Scoped(ts, track_id, binder_category_id_,
transaction_async_id_, 0, args_inserter);
awaiting_async_rcv_[transaction_id] = args_inserter;
}
}
void BinderTracker::TransactionReceived(int64_t ts,
uint32_t pid,
int32_t transaction_id) {
UniqueTid utid = context_->process_tracker->GetOrCreateThread(pid);
const auto& thread_table = context_->storage->thread_table();
StringId thread_name = thread_table.name()[utid];
TrackId track_id = context_->track_tracker->InternThreadTrack(utid);
if (awaiting_rcv_for_reply_.count(transaction_id) > 0) {
context_->slice_tracker->End(ts, track_id);
awaiting_rcv_for_reply_.erase(transaction_id);
return;
}
if (transaction_await_rcv.count(transaction_id) > 0) {
// First begin the reply slice to get its slice id.
auto reply_slice_id = context_->slice_tracker->Begin(
ts, track_id, binder_category_id_, reply_id_);
// Add accurate dest info to the binder transaction slice.
auto args_inserter = [this, pid, &thread_name, &reply_slice_id](
ArgsTracker::BoundInserter* inserter) {
inserter->AddArg(dest_thread_, Variadic::UnsignedInteger(pid));
inserter->AddArg(dest_name_, Variadic::String(thread_name));
if (reply_slice_id.has_value())
inserter->AddArg(dest_slice_id_,
Variadic::UnsignedInteger(reply_slice_id->value));
};
// Add the dest args to the current transaction slice and get the slice id.
auto transaction_slice_id = context_->slice_tracker->AddArgs(
transaction_await_rcv[transaction_id], binder_category_id_,
transaction_slice_id_, args_inserter);
// Add the dest slice id to the reply slice that has just begun.
auto reply_dest_inserter =
[this, &transaction_slice_id](ArgsTracker::BoundInserter* inserter) {
if (transaction_slice_id.has_value())
inserter->AddArg(dest_slice_id_, Variadic::UnsignedInteger(
transaction_slice_id.value()));
};
context_->slice_tracker->AddArgs(track_id, binder_category_id_, reply_id_,
reply_dest_inserter);
transaction_await_rcv.erase(transaction_id);
return;
}
if (awaiting_async_rcv_.count(transaction_id) > 0) {
auto args = awaiting_async_rcv_[transaction_id];
context_->slice_tracker->Scoped(ts, track_id, binder_category_id_,
async_rcv_id_, 0, args);
awaiting_async_rcv_.erase(transaction_id);
return;
}
}
void BinderTracker::Lock(int64_t ts, uint32_t pid) {
attempt_lock_[pid] = ts;
UniqueTid utid = context_->process_tracker->GetOrCreateThread(pid);
TrackId track_id = context_->track_tracker->InternThreadTrack(utid);
context_->slice_tracker->Begin(ts, track_id, binder_category_id_,
lock_waiting_id_);
}
void BinderTracker::Locked(int64_t ts, uint32_t pid) {
UniqueTid utid = context_->process_tracker->GetOrCreateThread(pid);
if (attempt_lock_.count(pid) == 0)
return;
TrackId track_id = context_->track_tracker->InternThreadTrack(utid);
context_->slice_tracker->End(ts, track_id);
context_->slice_tracker->Begin(ts, track_id, binder_category_id_,
lock_held_id_);
lock_acquired_[pid] = ts;
attempt_lock_.erase(pid);
}
void BinderTracker::Unlock(int64_t ts, uint32_t pid) {
UniqueTid utid = context_->process_tracker->GetOrCreateThread(pid);
if (lock_acquired_.count(pid) == 0)
return;
TrackId track_id = context_->track_tracker->InternThreadTrack(utid);
context_->slice_tracker->End(ts, track_id, binder_category_id_,
lock_held_id_);
lock_acquired_.erase(pid);
}
void BinderTracker::TransactionAllocBuf(int64_t ts,
uint32_t pid,
uint64_t data_size,
uint64_t offsets_size) {
UniqueTid utid = context_->process_tracker->GetOrCreateThread(pid);
TrackId track_id = context_->track_tracker->InternThreadTrack(utid);
auto args_inserter = [this, &data_size,
offsets_size](ArgsTracker::BoundInserter* inserter) {
inserter->AddArg(data_size_, Variadic::UnsignedInteger(data_size));
inserter->AddArg(offsets_size_, Variadic::UnsignedInteger(offsets_size));
};
context_->slice_tracker->AddArgs(track_id, binder_category_id_,
transaction_slice_id_, args_inserter);
base::ignore_result(ts);
}
} // namespace trace_processor
} // namespace perfetto
|
