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
|
/*
* 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.
*/
#pragma once
#include <functional>
#include <memory>
#include <string>
#include <android-base/expected.h>
#include "record.h"
#include "thread_tree.h"
namespace simpleperf {
struct ETMDumpOption {
bool dump_raw_data = false;
bool dump_packets = false;
bool dump_elements = false;
};
bool ParseEtmDumpOption(const std::string& s, ETMDumpOption* option);
struct ETMInstrRange {
// the binary containing the instruction range
Dso* dso = nullptr;
// the address of the first instruction in the binary
uint64_t start_addr = 0;
// the address of the last instruction in the binary
uint64_t end_addr = 0;
// If the last instruction is a branch instruction, and it branches
// to a fixed location in the same binary, then branch_to_addr points
// to the branched to instruction.
uint64_t branch_to_addr = 0;
// times the branch is taken
uint64_t branch_taken_count = 0;
// times the branch isn't taken
uint64_t branch_not_taken_count = 0;
};
struct ETMBranchList {
// the binary containing the branch list
Dso* dso = nullptr;
// the instruction address before the first branch. Bit 0 is set for thumb instructions.
uint64_t addr = 0;
// the branch list (one bit for each branch, true for branch taken, false for not taken)
std::vector<bool> branch;
};
// ThreadTree interface used by ETMDecoder
class ETMThreadTree {
public:
virtual ~ETMThreadTree() {}
virtual void DisableThreadExitRecords() = 0;
virtual const ThreadEntry* FindThread(int tid) = 0;
virtual const MapSet& GetKernelMaps() = 0;
};
class ETMDecoder {
public:
static std::unique_ptr<ETMDecoder> Create(const AuxTraceInfoRecord& auxtrace_info,
ETMThreadTree& thread_tree);
virtual ~ETMDecoder() {}
virtual void EnableDump(const ETMDumpOption& option) = 0;
using InstrRangeCallbackFn = std::function<void(const ETMInstrRange&)>;
virtual void RegisterCallback(const InstrRangeCallbackFn& callback) = 0;
using BranchListCallbackFn = std::function<void(const ETMBranchList&)>;
virtual void RegisterCallback(const BranchListCallbackFn& callback) = 0;
virtual bool ProcessData(const uint8_t* data, size_t size, bool formatted, uint32_t cpu) = 0;
virtual bool FinishData() = 0;
};
// Map from addrs to a map of (branch_list, count).
// Use maps instead of unordered_maps. Because it helps locality by decoding instructions for sorted
// addresses.
using ETMBranchMap = std::map<uint64_t, std::map<std::vector<bool>, uint64_t>>;
android::base::expected<void, std::string> ConvertETMBranchMapToInstrRanges(
Dso* dso, const ETMBranchMap& branch_map, const ETMDecoder::InstrRangeCallbackFn& callback);
} // namespace simpleperf
|
