1 /*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <gtest/gtest.h>
18
19 #include <string.h>
20
21 #include <memory>
22
23 #include <android-base/file.h>
24
25 #include "environment.h"
26 #include "event_attr.h"
27 #include "event_type.h"
28 #include "record.h"
29 #include "record_file.h"
30
31 #include "record_equal_test.h"
32
33 using namespace PerfFileFormat;
34
35 class RecordFileTest : public ::testing::Test {
36 protected:
AddEventType(const std::string & event_type_str)37 void AddEventType(const std::string& event_type_str) {
38 std::unique_ptr<EventTypeAndModifier> event_type_modifier = ParseEventType(event_type_str);
39 ASSERT_TRUE(event_type_modifier != nullptr);
40 perf_event_attr attr = CreateDefaultPerfEventAttr(event_type_modifier->event_type);
41 attr.sample_id_all = 1;
42 attrs_.push_back(std::unique_ptr<perf_event_attr>(new perf_event_attr(attr)));
43 EventAttrWithId attr_id;
44 attr_id.attr = attrs_.back().get();
45 attr_id.ids.push_back(attrs_.size()); // Fake id.
46 attr_ids_.push_back(attr_id);
47 }
48
49 TemporaryFile tmpfile_;
50 std::vector<std::unique_ptr<perf_event_attr>> attrs_;
51 std::vector<EventAttrWithId> attr_ids_;
52 };
53
TEST_F(RecordFileTest,smoke)54 TEST_F(RecordFileTest, smoke) {
55 // Write to a record file.
56 std::unique_ptr<RecordFileWriter> writer = RecordFileWriter::CreateInstance(tmpfile_.path);
57 ASSERT_TRUE(writer != nullptr);
58
59 // Write attr section.
60 AddEventType("cpu-cycles");
61 ASSERT_TRUE(writer->WriteAttrSection(attr_ids_));
62
63 // Write data section.
64 MmapRecord mmap_record(*(attr_ids_[0].attr), true, 1, 1, 0x1000, 0x2000,
65 0x3000, "mmap_record_example", attr_ids_[0].ids[0]);
66 ASSERT_TRUE(writer->WriteRecord(mmap_record));
67
68 // Write feature section.
69 ASSERT_TRUE(writer->BeginWriteFeatures(1));
70 char p[BuildId::Size()];
71 for (size_t i = 0; i < BuildId::Size(); ++i) {
72 p[i] = i;
73 }
74 BuildId build_id(p);
75 std::vector<BuildIdRecord> build_id_records;
76 build_id_records.push_back(BuildIdRecord(false, getpid(), build_id, "init"));
77 ASSERT_TRUE(writer->WriteBuildIdFeature(build_id_records));
78 ASSERT_TRUE(writer->EndWriteFeatures());
79 ASSERT_TRUE(writer->Close());
80
81 // Read from a record file.
82 std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(tmpfile_.path);
83 ASSERT_TRUE(reader != nullptr);
84 std::vector<EventAttrWithId> attrs = reader->AttrSection();
85 ASSERT_EQ(1u, attrs.size());
86 ASSERT_EQ(0, memcmp(attrs[0].attr, attr_ids_[0].attr, sizeof(perf_event_attr)));
87 ASSERT_EQ(attrs[0].ids, attr_ids_[0].ids);
88
89 // Read and check data section.
90 std::vector<std::unique_ptr<Record>> records = reader->DataSection();
91 ASSERT_EQ(1u, records.size());
92 CheckRecordEqual(mmap_record, *records[0]);
93
94 // Read and check feature section.
95 std::vector<BuildIdRecord> read_build_id_records = reader->ReadBuildIdFeature();
96 ASSERT_EQ(1u, read_build_id_records.size());
97 CheckRecordEqual(read_build_id_records[0], build_id_records[0]);
98
99 ASSERT_TRUE(reader->Close());
100 }
101
TEST_F(RecordFileTest,record_more_than_one_attr)102 TEST_F(RecordFileTest, record_more_than_one_attr) {
103 // Write to a record file.
104 std::unique_ptr<RecordFileWriter> writer = RecordFileWriter::CreateInstance(tmpfile_.path);
105 ASSERT_TRUE(writer != nullptr);
106
107 // Write attr section.
108 AddEventType("cpu-cycles");
109 AddEventType("cpu-clock");
110 AddEventType("task-clock");
111 ASSERT_TRUE(writer->WriteAttrSection(attr_ids_));
112
113 ASSERT_TRUE(writer->Close());
114
115 // Read from a record file.
116 std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(tmpfile_.path);
117 ASSERT_TRUE(reader != nullptr);
118 std::vector<EventAttrWithId> attrs = reader->AttrSection();
119 ASSERT_EQ(3u, attrs.size());
120 for (size_t i = 0; i < attrs.size(); ++i) {
121 ASSERT_EQ(0, memcmp(attrs[i].attr, attr_ids_[i].attr, sizeof(perf_event_attr)));
122 ASSERT_EQ(attrs[i].ids, attr_ids_[i].ids);
123 }
124 }
125
TEST_F(RecordFileTest,write_meta_info_feature_section)126 TEST_F(RecordFileTest, write_meta_info_feature_section) {
127 // Write to a record file.
128 std::unique_ptr<RecordFileWriter> writer = RecordFileWriter::CreateInstance(tmpfile_.path);
129 ASSERT_TRUE(writer != nullptr);
130 AddEventType("cpu-cycles");
131 ASSERT_TRUE(writer->WriteAttrSection(attr_ids_));
132
133 // Write meta_info feature section.
134 ASSERT_TRUE(writer->BeginWriteFeatures(1));
135 std::unordered_map<std::string, std::string> info_map;
136 for (int i = 0; i < 100; ++i) {
137 std::string s = std::to_string(i);
138 info_map[s] = s + s;
139 }
140 ASSERT_TRUE(writer->WriteMetaInfoFeature(info_map));
141 ASSERT_TRUE(writer->EndWriteFeatures());
142 ASSERT_TRUE(writer->Close());
143
144 // Read from a record file.
145 std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(tmpfile_.path);
146 ASSERT_TRUE(reader != nullptr);
147 ASSERT_EQ(reader->GetMetaInfoFeature(), info_map);
148 }
149