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/*
* Copyright (C) 2015 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 <gtest/gtest.h>
#include "event_attr.h"
#include "event_type.h"
#include "record.h"
#include "record_equal_test.h"
class RecordTest : public ::testing::Test {
protected:
virtual void SetUp() {
const EventType* type = FindEventTypeByName("cpu-clock");
ASSERT_TRUE(type != nullptr);
event_attr = CreateDefaultPerfEventAttr(*type);
event_attr.sample_id_all = 1;
}
void CheckRecordMatchBinary(Record& record) {
std::vector<std::unique_ptr<Record>> records =
ReadRecordsFromBuffer(event_attr, record.BinaryForTestingOnly(), record.size());
ASSERT_EQ(1u, records.size());
CheckRecordEqual(record, *records[0]);
}
perf_event_attr event_attr;
};
TEST_F(RecordTest, MmapRecordMatchBinary) {
MmapRecord record(event_attr, true, 1, 2, 0x1000, 0x2000, 0x3000,
"MmapRecord", 0);
CheckRecordMatchBinary(record);
}
TEST_F(RecordTest, CommRecordMatchBinary) {
CommRecord record(event_attr, 1, 2, "CommRecord", 0, 7);
CheckRecordMatchBinary(record);
}
TEST_F(RecordTest, SampleRecordMatchBinary) {
event_attr.sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID | PERF_SAMPLE_TIME
| PERF_SAMPLE_ID | PERF_SAMPLE_CPU
| PERF_SAMPLE_PERIOD | PERF_SAMPLE_CALLCHAIN;
SampleRecord record(event_attr, 1, 2, 3, 4, 5, 6, 7, {8, 9, 10}, {}, 0);
CheckRecordMatchBinary(record);
}
TEST_F(RecordTest, SampleRecord_exclude_kernel_callchain) {
SampleRecord r(event_attr, 0, 1, 0, 0, 0, 0, 0, {}, {}, 0);
ASSERT_TRUE(r.ExcludeKernelCallChain());
event_attr.sample_type |= PERF_SAMPLE_CALLCHAIN;
SampleRecord r1(event_attr, 0, 1, 0, 0, 0, 0, 0, {PERF_CONTEXT_USER, 2}, {}, 0);
ASSERT_TRUE(r1.ExcludeKernelCallChain());
ASSERT_EQ(2u, r1.ip_data.ip);
SampleRecord r2(event_attr, r1.BinaryForTestingOnly());
ASSERT_EQ(1u, r.ip_data.ip);
ASSERT_EQ(2u, r2.callchain_data.ip_nr);
ASSERT_EQ(PERF_CONTEXT_USER, r2.callchain_data.ips[0]);
ASSERT_EQ(2u, r2.callchain_data.ips[1]);
SampleRecord r3(event_attr, 0, 1, 0, 0, 0, 0, 0, {1, PERF_CONTEXT_USER, 2}, {}, 0);
ASSERT_TRUE(r3.ExcludeKernelCallChain());
ASSERT_EQ(2u, r3.ip_data.ip);
SampleRecord r4(event_attr, r3.BinaryForTestingOnly());
ASSERT_EQ(2u, r4.ip_data.ip);
ASSERT_EQ(3u, r4.callchain_data.ip_nr);
ASSERT_EQ(PERF_CONTEXT_USER, r4.callchain_data.ips[0]);
ASSERT_EQ(PERF_CONTEXT_USER, r4.callchain_data.ips[1]);
ASSERT_EQ(2u, r4.callchain_data.ips[2]);
SampleRecord r5(event_attr, 0, 1, 0, 0, 0, 0, 0, {1, 2}, {}, 0);
ASSERT_FALSE(r5.ExcludeKernelCallChain());
SampleRecord r6(event_attr, 0, 1, 0, 0, 0, 0, 0, {1, 2, PERF_CONTEXT_USER}, {}, 0);
ASSERT_FALSE(r6.ExcludeKernelCallChain());
// Process consecutive context values.
SampleRecord r7(event_attr, 0, 1, 0, 0, 0, 0, 0,
{1, 2, PERF_CONTEXT_USER, PERF_CONTEXT_USER, 3, 4}, {}, 0);
r7.header.misc = PERF_RECORD_MISC_KERNEL;
ASSERT_TRUE(r7.ExcludeKernelCallChain());
CheckRecordEqual(r7, SampleRecord(event_attr, 0, 3, 0, 0, 0, 0, 0,
{PERF_CONTEXT_USER, PERF_CONTEXT_USER, PERF_CONTEXT_USER,
PERF_CONTEXT_USER, 3, 4}, {}, 0));
}
TEST_F(RecordTest, SampleRecord_ReplaceRegAndStackWithCallChain) {
event_attr.sample_type |= PERF_SAMPLE_CALLCHAIN | PERF_SAMPLE_REGS_USER | PERF_SAMPLE_STACK_USER;
SampleRecord expected(event_attr, 0, 1, 2, 3, 4, 5, 6, {1, PERF_CONTEXT_USER, 2, 3, 4, 5}, {},
0);
for (size_t stack_size : {8, 1024}) {
SampleRecord r(event_attr, 0, 1, 2, 3, 4, 5, 6, {1}, std::vector<char>(stack_size), 10);
r.ReplaceRegAndStackWithCallChain({2, 3, 4, 5});
CheckRecordMatchBinary(r);
CheckRecordEqual(r, expected);
}
}
TEST_F(RecordTest, SampleRecord_UpdateUserCallChain) {
event_attr.sample_type |= PERF_SAMPLE_CALLCHAIN | PERF_SAMPLE_REGS_USER | PERF_SAMPLE_STACK_USER;
SampleRecord r(event_attr, 0, 1, 2, 3, 4, 5, 6, {1, PERF_CONTEXT_USER, 2}, {}, 0);
r.UpdateUserCallChain({3, 4, 5});
CheckRecordMatchBinary(r);
SampleRecord expected(event_attr, 0, 1, 2, 3, 4, 5, 6, {1, PERF_CONTEXT_USER, 3, 4, 5}, {}, 0);
CheckRecordEqual(r, expected);
}
TEST_F(RecordTest, SampleRecord_AdjustCallChainGeneratedByKernel) {
event_attr.sample_type |= PERF_SAMPLE_CALLCHAIN | PERF_SAMPLE_REGS_USER | PERF_SAMPLE_STACK_USER;
SampleRecord r(event_attr, 0, 1, 2, 3, 4, 5, 6, {1, 5, 0, PERF_CONTEXT_USER, 6, 0}, {}, 0);
r.header.misc = PERF_RECORD_MISC_KERNEL;
r.AdjustCallChainGeneratedByKernel();
uint64_t adjustValue = (GetBuildArch() == ARCH_ARM || GetBuildArch() == ARCH_ARM64) ? 2 : 1;
SampleRecord expected(event_attr, 0, 1, 2, 3, 4, 5, 6,
{1, 5 - adjustValue, PERF_CONTEXT_KERNEL, PERF_CONTEXT_USER,
6 - adjustValue, PERF_CONTEXT_USER}, {}, 0);
expected.header.misc = PERF_RECORD_MISC_KERNEL;
CheckRecordEqual(r, expected);
}
TEST_F(RecordTest, CommRecord) {
CommRecord r(event_attr, 1, 2, "init_name", 3, 4);
size_t record_size = r.size();
std::string new_name = "a_much_longer_name";
r.SetCommandName(new_name);
ASSERT_EQ(r.size(), record_size + 8);
ASSERT_EQ(std::string(r.comm), new_name);
ASSERT_EQ(r.data->pid, 1u);
ASSERT_EQ(r.data->tid, 2u);
ASSERT_EQ(r.sample_id.id_data.id, 3u);
ASSERT_EQ(r.sample_id.time_data.time, 4u);
CheckRecordMatchBinary(r);
}
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