1 /*
2 * Copyright (C) 2019 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 "src/trace_processor/importers/syscalls/syscall_tracker.h"
18
19 #include "src/trace_processor/importers/common/global_args_tracker.h"
20 #include "src/trace_processor/importers/common/slice_tracker.h"
21 #include "test/gtest_and_gmock.h"
22
23 namespace perfetto {
24 namespace trace_processor {
25 namespace {
26
27 using ::testing::_;
28 using ::testing::DoAll;
29 using ::testing::Return;
30 using ::testing::SaveArg;
31
32 class MockSliceTracker : public SliceTracker {
33 public:
MockSliceTracker(TraceProcessorContext * context)34 MockSliceTracker(TraceProcessorContext* context) : SliceTracker(context) {}
35 ~MockSliceTracker() override = default;
36
37 MOCK_METHOD(std::optional<SliceId>,
38 Begin,
39 (int64_t timestamp,
40 TrackId track_id,
41 StringId cat,
42 StringId name,
43 SetArgsCallback args_callback),
44 (override));
45 MOCK_METHOD(std::optional<SliceId>,
46 End,
47 (int64_t timestamp,
48 TrackId track_id,
49 StringId cat,
50 StringId name,
51 SetArgsCallback args_callback),
52 (override));
53 MOCK_METHOD(std::optional<SliceId>,
54 Scoped,
55 (int64_t timestamp,
56 TrackId track_id,
57 StringId cat,
58 StringId name,
59 int64_t duration,
60 SetArgsCallback args_callback),
61 (override));
62 };
63
64 class SyscallTrackerTest : public ::testing::Test {
65 public:
SyscallTrackerTest()66 SyscallTrackerTest() {
67 context.storage.reset(new TraceStorage());
68 context.global_args_tracker.reset(
69 new GlobalArgsTracker(context.storage.get()));
70 track_tracker = new TrackTracker(&context);
71 context.track_tracker.reset(track_tracker);
72 slice_tracker = new MockSliceTracker(&context);
73 context.slice_tracker.reset(slice_tracker);
74 }
75
76 protected:
77 TraceProcessorContext context;
78 MockSliceTracker* slice_tracker;
79 TrackTracker* track_tracker;
80 };
81
TEST_F(SyscallTrackerTest,ReportUnknownSyscalls)82 TEST_F(SyscallTrackerTest, ReportUnknownSyscalls) {
83 constexpr TrackId track{0u};
84 StringId begin_name = kNullStringId;
85 StringId end_name = kNullStringId;
86 EXPECT_CALL(*slice_tracker, Begin(100, track, kNullStringId, _, _))
87 .WillOnce(DoAll(SaveArg<3>(&begin_name), Return(std::nullopt)));
88 EXPECT_CALL(*slice_tracker, End(110, track, kNullStringId, _, _))
89 .WillOnce(DoAll(SaveArg<3>(&end_name), Return(std::nullopt)));
90
91 SyscallTracker* syscall_tracker = SyscallTracker::GetOrCreate(&context);
92 syscall_tracker->Enter(100 /*ts*/, 42 /*utid*/, 57 /*sys_read*/);
93 syscall_tracker->Exit(110 /*ts*/, 42 /*utid*/, 57 /*sys_read*/);
94 EXPECT_EQ(context.storage->GetString(begin_name), "sys_57");
95 EXPECT_EQ(context.storage->GetString(end_name), "sys_57");
96 }
97
TEST_F(SyscallTrackerTest,ReportSysreturn)98 TEST_F(SyscallTrackerTest, ReportSysreturn) {
99 EXPECT_CALL(*slice_tracker, Scoped(_, _, _, _, _, _)).Times(1);
100
101 SyscallTracker* syscall_tracker = SyscallTracker::GetOrCreate(&context);
102 syscall_tracker->SetArchitecture(Architecture::kArm64);
103 syscall_tracker->Enter(100 /*ts*/, 42 /*utid*/, 139);
104 }
105
TEST_F(SyscallTrackerTest,Arm64)106 TEST_F(SyscallTrackerTest, Arm64) {
107 constexpr TrackId track{0u};
108 StringId begin_name = kNullStringId;
109 StringId end_name = kNullStringId;
110 EXPECT_CALL(*slice_tracker, Begin(100, track, kNullStringId, _, _))
111 .WillOnce(DoAll(SaveArg<3>(&begin_name), Return(std::nullopt)));
112 EXPECT_CALL(*slice_tracker, End(110, track, kNullStringId, _, _))
113 .WillOnce(DoAll(SaveArg<3>(&end_name), Return(std::nullopt)));
114
115 SyscallTracker* syscall_tracker = SyscallTracker::GetOrCreate(&context);
116 syscall_tracker->SetArchitecture(Architecture::kArm64);
117 syscall_tracker->Enter(100 /*ts*/, 42 /*utid*/, 63 /*sys_read*/);
118 syscall_tracker->Exit(110 /*ts*/, 42 /*utid*/, 63 /*sys_read*/);
119 EXPECT_EQ(context.storage->GetString(begin_name), "sys_read");
120 EXPECT_EQ(context.storage->GetString(end_name), "sys_read");
121 }
122
TEST_F(SyscallTrackerTest,x8664)123 TEST_F(SyscallTrackerTest, x8664) {
124 constexpr TrackId track{0u};
125 StringId begin_name = kNullStringId;
126 StringId end_name = kNullStringId;
127 EXPECT_CALL(*slice_tracker, Begin(100, track, kNullStringId, _, _))
128 .WillOnce(DoAll(SaveArg<3>(&begin_name), Return(std::nullopt)));
129 EXPECT_CALL(*slice_tracker, End(110, track, kNullStringId, _, _))
130 .WillOnce(DoAll(SaveArg<3>(&end_name), Return(std::nullopt)));
131
132 SyscallTracker* syscall_tracker = SyscallTracker::GetOrCreate(&context);
133 syscall_tracker->SetArchitecture(Architecture::kX86_64);
134 syscall_tracker->Enter(100 /*ts*/, 42 /*utid*/, 0 /*sys_read*/);
135 syscall_tracker->Exit(110 /*ts*/, 42 /*utid*/, 0 /*sys_read*/);
136 EXPECT_EQ(context.storage->GetString(begin_name), "sys_read");
137 EXPECT_EQ(context.storage->GetString(end_name), "sys_read");
138 }
139
TEST_F(SyscallTrackerTest,SyscallNumberTooLarge)140 TEST_F(SyscallTrackerTest, SyscallNumberTooLarge) {
141 EXPECT_CALL(*slice_tracker, Begin(_, _, _, _, _)).Times(0);
142 EXPECT_CALL(*slice_tracker, End(_, _, _, _, _)).Times(0);
143
144 SyscallTracker* syscall_tracker = SyscallTracker::GetOrCreate(&context);
145 syscall_tracker->SetArchitecture(Architecture::kArm64);
146 syscall_tracker->Enter(100 /*ts*/, 42 /*utid*/, 9999);
147 syscall_tracker->Exit(110 /*ts*/, 42 /*utid*/, 9999);
148 }
149
150 } // namespace
151 } // namespace trace_processor
152 } // namespace perfetto
153