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/*
* Copyright (C) 2018 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 <unistd.h>
#include <memory>
#include <string>
#include <vector>
#include <android-base/file.h>
#include "command.h"
#include "get_test_data.h"
#include "record_file.h"
#include "test_util.h"
static std::unique_ptr<Command> DebugUnwindCmd() {
return CreateCommandInstance("debug-unwind");
}
TEST(cmd_debug_unwind, smoke) {
std::string input_data = GetTestData(PERF_DATA_NO_UNWIND);
CaptureStdout capture;
TemporaryFile tmp_file;
ASSERT_TRUE(capture.Start());
ASSERT_TRUE(DebugUnwindCmd()->Run({"-i", input_data, "-o", tmp_file.path}));
ASSERT_NE(capture.Finish().find("Unwinding sample count: 8"), std::string::npos);
ASSERT_TRUE(capture.Start());
ASSERT_TRUE(DebugUnwindCmd()->Run({"-i", input_data, "-o", tmp_file.path, "--time",
"1516379654300997"}));
ASSERT_NE(capture.Finish().find("Unwinding sample count: 1"), std::string::npos);
}
TEST(cmd_debug_unwind, symfs_option) {
std::string input_data = GetTestData(NATIVELIB_IN_APK_PERF_DATA);
CaptureStdout capture;
TemporaryFile tmp_file;
ASSERT_TRUE(capture.Start());
ASSERT_TRUE(DebugUnwindCmd()->Run({"-i", input_data, "-o", tmp_file.path, "--symfs",
GetTestDataDir()}));
ASSERT_NE(capture.Finish().find("Unwinding sample count: 55"), std::string::npos);
std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(tmp_file.path);
ASSERT_TRUE(reader);
const std::map<int, PerfFileFormat::SectionDesc>& features = reader->FeatureSectionDescriptors();
ASSERT_NE(features.find(PerfFileFormat::FEAT_FILE), features.end());
ASSERT_NE(features.find(PerfFileFormat::FEAT_META_INFO), features.end());
auto meta_info = reader->GetMetaInfoFeature();
ASSERT_EQ(meta_info["debug_unwind"], "true");
}
TEST(cmd_debug_unwind, unwind_with_ip_zero_in_callchain) {
TemporaryFile tmp_file;
CaptureStdout capture;
ASSERT_TRUE(capture.Start());
ASSERT_TRUE(DebugUnwindCmd()->Run({"-i", GetTestData(PERF_DATA_WITH_IP_ZERO_IN_CALLCHAIN),
"-o", tmp_file.path}));
ASSERT_NE(capture.Finish().find("Unwinding sample count: 1"), std::string::npos);
}
TEST(cmd_debug_unwind, unwind_embedded_lib_in_apk) {
// Check if we can unwind through a native library embedded in an apk. In the profiling data
// file, there is a sample with ip address pointing to
// /data/app/simpleperf.demo.cpp_api/base.apk!/lib/arm64-v8a/libnative-lib.so.
// If unwound successfully, it can reach a function in libc.so.
TemporaryFile tmp_file;
ASSERT_TRUE(DebugUnwindCmd()->Run({"-i", GetTestData("perf_unwind_embedded_lib_in_apk.data"),
"--symfs", GetTestDataDir(), "-o", tmp_file.path}));
CaptureStdout capture;
ASSERT_TRUE(capture.Start());
ASSERT_TRUE(CreateCommandInstance("report-sample")->Run(
{"--show-callchain", "-i", tmp_file.path}));
std::string output = capture.Finish();
ASSERT_NE(output.find("libnative-lib.so"), std::string::npos);
ASSERT_NE(output.find("libc.so"), std::string::npos);
}
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