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/*
* Copyright (C) 2020 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 "tracing.h"
#include <gtest/gtest.h>
#include <android-base/strings.h>
using namespace simpleperf;
static void CheckAdjustFilter(const std::string& filter, bool use_quote,
const std::string& adjusted_filter,
const std::string used_field_str) {
FieldNameSet used_fields;
auto value = AdjustTracepointFilter(filter, use_quote, &used_fields);
ASSERT_TRUE(value.has_value());
ASSERT_EQ(value.value(), adjusted_filter);
ASSERT_EQ(android::base::Join(used_fields, ","), used_field_str);
}
// @CddTest = 6.1/C-0-2
TEST(tracing, adjust_tracepoint_filter) {
std::string filter = "((sig >= 1 && sig < 20) || sig == 32) && comm != \"bash\"";
CheckAdjustFilter(filter, true, filter, "comm,sig");
CheckAdjustFilter(filter, false, "((sig >= 1 && sig < 20) || sig == 32) && comm != bash",
"comm,sig");
filter = "pid != 3 && !(comm ~ *bash)";
CheckAdjustFilter(filter, true, "pid != 3 && !(comm ~ \"*bash\")", "comm,pid");
CheckAdjustFilter(filter, false, filter, "comm,pid");
filter = "mask & 3";
CheckAdjustFilter(filter, true, filter, "mask");
CheckAdjustFilter(filter, false, filter, "mask");
filter = "addr > 0 && addr != 0xFFFFFFFFFFFFFFFF || value > -5";
CheckAdjustFilter(filter, true, filter, "addr,value");
CheckAdjustFilter(filter, false, filter, "addr,value");
// unmatched paren
FieldNameSet used_fields;
ASSERT_FALSE(AdjustTracepointFilter("(pid > 3", true, &used_fields).has_value());
ASSERT_FALSE(AdjustTracepointFilter("pid > 3)", true, &used_fields).has_value());
// unknown operator
ASSERT_FALSE(AdjustTracepointFilter("pid ^ 3", true, &used_fields).has_value());
}
namespace simpleperf {
std::ostream& operator<<(std::ostream& os, const TracingField& field) {
os << "field (" << field.name << ", off " << field.offset << ", elem size " << field.elem_size
<< ", elem_count " << field.elem_count << ", is_signed " << field.is_signed << ", is_dynamic "
<< field.is_dynamic << ")";
return os;
}
} // namespace simpleperf
// @CddTest = 6.1/C-0-2
TEST(tracing, ParseTracingFormat) {
std::string data =
"name: sched_wakeup_new\n"
"ID: 94\n"
"format:\n"
"\tfield:unsigned short common_type; offset:0; size:2; signed:0;\n"
"\tfield:unsigned char common_flags; offset:2; size:1; signed:0;\n"
"\tfield:unsigned char common_preempt_count; offset:3; size:1; signed:0;\n"
"\tfield:int common_pid; offset:4; size:4; signed:1;\n"
"\n"
"\tfield:char comm[16]; offset:8; size:16; signed:1;\n"
"\tfield:__data_loc char[] name; offset:24; size:4; signed:1;\n";
std::optional<TracingFormat> opt_format = ParseTracingFormat(data);
ASSERT_TRUE(opt_format.has_value());
const TracingFormat& format = opt_format.value();
ASSERT_EQ(format.name, "sched_wakeup_new");
ASSERT_EQ(format.id, 94);
ASSERT_EQ(format.fields.size(), 6);
ASSERT_EQ(format.fields[0], TracingField({.name = "common_type", .offset = 0, .elem_size = 2}));
ASSERT_EQ(format.fields[1], TracingField({.name = "common_flags", .offset = 2, .elem_size = 1}));
ASSERT_EQ(format.fields[2],
TracingField({.name = "common_preempt_count", .offset = 3, .elem_size = 1}));
ASSERT_EQ(format.fields[3],
TracingField({.name = "common_pid", .offset = 4, .elem_size = 4, .is_signed = true}));
ASSERT_EQ(
format.fields[4],
TracingField(
{.name = "comm", .offset = 8, .elem_size = 1, .elem_count = 16, .is_signed = true}));
ASSERT_EQ(format.fields[5], TracingField({.name = "name",
.offset = 24,
.elem_size = 4,
.elem_count = 1,
.is_signed = true,
.is_dynamic = true}));
}
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