1 /*
2 * Copyright (C) 2020 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 "tracing.h"
18
19 #include <gtest/gtest.h>
20
21 #include <android-base/strings.h>
22
23 using namespace simpleperf;
24
CheckAdjustFilter(const std::string & filter,bool use_quote,const std::string & adjusted_filter,const std::string used_field_str)25 static void CheckAdjustFilter(const std::string& filter, bool use_quote,
26 const std::string& adjusted_filter,
27 const std::string used_field_str) {
28 FieldNameSet used_fields;
29 auto value = AdjustTracepointFilter(filter, use_quote, &used_fields);
30 ASSERT_TRUE(value.has_value());
31 ASSERT_EQ(value.value(), adjusted_filter);
32 ASSERT_EQ(android::base::Join(used_fields, ","), used_field_str);
33 }
34
35 // @CddTest = 6.1/C-0-2
TEST(tracing,adjust_tracepoint_filter)36 TEST(tracing, adjust_tracepoint_filter) {
37 std::string filter = "((sig >= 1 && sig < 20) || sig == 32) && comm != \"bash\"";
38 CheckAdjustFilter(filter, true, filter, "comm,sig");
39 CheckAdjustFilter(filter, false, "((sig >= 1 && sig < 20) || sig == 32) && comm != bash",
40 "comm,sig");
41
42 filter = "pid != 3 && !(comm ~ *bash)";
43 CheckAdjustFilter(filter, true, "pid != 3 && !(comm ~ \"*bash\")", "comm,pid");
44 CheckAdjustFilter(filter, false, filter, "comm,pid");
45
46 filter = "mask & 3";
47 CheckAdjustFilter(filter, true, filter, "mask");
48 CheckAdjustFilter(filter, false, filter, "mask");
49
50 filter = "addr > 0 && addr != 0xFFFFFFFFFFFFFFFF || value > -5";
51 CheckAdjustFilter(filter, true, filter, "addr,value");
52 CheckAdjustFilter(filter, false, filter, "addr,value");
53
54 // unmatched paren
55 FieldNameSet used_fields;
56 ASSERT_FALSE(AdjustTracepointFilter("(pid > 3", true, &used_fields).has_value());
57 ASSERT_FALSE(AdjustTracepointFilter("pid > 3)", true, &used_fields).has_value());
58 // unknown operator
59 ASSERT_FALSE(AdjustTracepointFilter("pid ^ 3", true, &used_fields).has_value());
60 }
61
62 namespace simpleperf {
operator <<(std::ostream & os,const TracingField & field)63 std::ostream& operator<<(std::ostream& os, const TracingField& field) {
64 os << "field (" << field.name << ", off " << field.offset << ", elem size " << field.elem_size
65 << ", elem_count " << field.elem_count << ", is_signed " << field.is_signed << ", is_dynamic "
66 << field.is_dynamic << ")";
67 return os;
68 }
69 } // namespace simpleperf
70
71 // @CddTest = 6.1/C-0-2
TEST(tracing,ParseTracingFormat)72 TEST(tracing, ParseTracingFormat) {
73 std::string data =
74 "name: sched_wakeup_new\n"
75 "ID: 94\n"
76 "format:\n"
77 "\tfield:unsigned short common_type; offset:0; size:2; signed:0;\n"
78 "\tfield:unsigned char common_flags; offset:2; size:1; signed:0;\n"
79 "\tfield:unsigned char common_preempt_count; offset:3; size:1; signed:0;\n"
80 "\tfield:int common_pid; offset:4; size:4; signed:1;\n"
81 "\n"
82 "\tfield:char comm[16]; offset:8; size:16; signed:1;\n"
83 "\tfield:__data_loc char[] name; offset:24; size:4; signed:1;\n";
84 std::optional<TracingFormat> opt_format = ParseTracingFormat(data);
85 ASSERT_TRUE(opt_format.has_value());
86 const TracingFormat& format = opt_format.value();
87 ASSERT_EQ(format.name, "sched_wakeup_new");
88 ASSERT_EQ(format.id, 94);
89 ASSERT_EQ(format.fields.size(), 6);
90 ASSERT_EQ(format.fields[0], TracingField({.name = "common_type", .offset = 0, .elem_size = 2}));
91 ASSERT_EQ(format.fields[1], TracingField({.name = "common_flags", .offset = 2, .elem_size = 1}));
92 ASSERT_EQ(format.fields[2],
93 TracingField({.name = "common_preempt_count", .offset = 3, .elem_size = 1}));
94 ASSERT_EQ(format.fields[3],
95 TracingField({.name = "common_pid", .offset = 4, .elem_size = 4, .is_signed = true}));
96 ASSERT_EQ(
97 format.fields[4],
98 TracingField(
99 {.name = "comm", .offset = 8, .elem_size = 1, .elem_count = 16, .is_signed = true}));
100 ASSERT_EQ(format.fields[5], TracingField({.name = "name",
101 .offset = 24,
102 .elem_size = 4,
103 .elem_count = 1,
104 .is_signed = true,
105 .is_dynamic = true}));
106 }
107