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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 <inttypes.h>
#include <map>
#include <string>
#include <vector>
#include <android-base/logging.h>
#include <android-base/stringprintf.h>
#include <android-base/strings.h>
#include "command.h"
#include "event_attr.h"
#include "perf_regs.h"
#include "record.h"
#include "record_file.h"
#include "utils.h"
using namespace PerfFileFormat;
class DumpRecordCommand : public Command {
public:
DumpRecordCommand()
: Command("dump", "dump perf record file",
"Usage: simpleperf dumprecord [options] [perf_record_file]\n"
" Dump different parts of a perf record file. Default file is perf.data.\n"),
record_filename_("perf.data") {
}
bool Run(const std::vector<std::string>& args);
private:
bool ParseOptions(const std::vector<std::string>& args);
void DumpFileHeader();
void DumpAttrSection();
void DumpDataSection();
void DumpFeatureSection();
std::string record_filename_;
std::unique_ptr<RecordFileReader> record_file_reader_;
};
bool DumpRecordCommand::Run(const std::vector<std::string>& args) {
if (!ParseOptions(args)) {
return false;
}
record_file_reader_ = RecordFileReader::CreateInstance(record_filename_);
if (record_file_reader_ == nullptr) {
return false;
}
std::string arch = record_file_reader_->ReadFeatureString(FEAT_ARCH);
if (!arch.empty()) {
if (!SetCurrentArch(arch)) {
return false;
}
}
DumpFileHeader();
DumpAttrSection();
DumpDataSection();
DumpFeatureSection();
return true;
}
bool DumpRecordCommand::ParseOptions(const std::vector<std::string>& args) {
if (args.size() == 1) {
record_filename_ = args[0];
} else if (args.size() > 1) {
ReportUnknownOption(args, 1);
return false;
}
return true;
}
static const std::string GetFeatureName(int feature);
void DumpRecordCommand::DumpFileHeader() {
const FileHeader& header = record_file_reader_->FileHeader();
printf("magic: ");
for (size_t i = 0; i < 8; ++i) {
printf("%c", header.magic[i]);
}
printf("\n");
printf("header_size: %" PRId64 "\n", header.header_size);
if (header.header_size != sizeof(header)) {
PLOG(WARNING) << "record file header size " << header.header_size
<< "doesn't match expected header size " << sizeof(header);
}
printf("attr_size: %" PRId64 "\n", header.attr_size);
if (header.attr_size != sizeof(FileAttr)) {
PLOG(WARNING) << "record file attr size " << header.attr_size
<< " doesn't match expected attr size " << sizeof(FileAttr);
}
printf("attrs[file section]: offset %" PRId64 ", size %" PRId64 "\n", header.attrs.offset,
header.attrs.size);
printf("data[file section]: offset %" PRId64 ", size %" PRId64 "\n", header.data.offset,
header.data.size);
printf("event_types[file section]: offset %" PRId64 ", size %" PRId64 "\n",
header.event_types.offset, header.event_types.size);
std::vector<int> features;
for (size_t i = 0; i < FEAT_MAX_NUM; ++i) {
size_t j = i / 8;
size_t k = i % 8;
if ((header.features[j] & (1 << k)) != 0) {
features.push_back(i);
}
}
for (auto& feature : features) {
printf("feature: %s\n", GetFeatureName(feature).c_str());
}
}
static const std::string GetFeatureName(int feature) {
static std::map<int, std::string> feature_name_map = {
{FEAT_TRACING_DATA, "tracing_data"},
{FEAT_BUILD_ID, "build_id"},
{FEAT_HOSTNAME, "hostname"},
{FEAT_OSRELEASE, "osrelease"},
{FEAT_VERSION, "version"},
{FEAT_ARCH, "arch"},
{FEAT_NRCPUS, "nrcpus"},
{FEAT_CPUDESC, "cpudesc"},
{FEAT_CPUID, "cpuid"},
{FEAT_TOTAL_MEM, "total_mem"},
{FEAT_CMDLINE, "cmdline"},
{FEAT_EVENT_DESC, "event_desc"},
{FEAT_CPU_TOPOLOGY, "cpu_topology"},
{FEAT_NUMA_TOPOLOGY, "numa_topology"},
{FEAT_BRANCH_STACK, "branch_stack"},
{FEAT_PMU_MAPPINGS, "pmu_mappings"},
{FEAT_GROUP_DESC, "group_desc"},
};
auto it = feature_name_map.find(feature);
if (it != feature_name_map.end()) {
return it->second;
}
return android::base::StringPrintf("unknown_feature(%d)", feature);
}
void DumpRecordCommand::DumpAttrSection() {
const std::vector<FileAttr>& attrs = record_file_reader_->AttrSection();
for (size_t i = 0; i < attrs.size(); ++i) {
const auto& attr = attrs[i];
printf("file_attr %zu:\n", i + 1);
DumpPerfEventAttr(attr.attr, 1);
printf(" ids[file_section]: offset %" PRId64 ", size %" PRId64 "\n", attr.ids.offset,
attr.ids.size);
std::vector<uint64_t> ids;
if (!record_file_reader_->ReadIdsForAttr(attr, &ids)) {
return;
}
if (!ids.empty()) {
printf(" ids:");
for (const auto& id : ids) {
printf(" %" PRId64, id);
}
printf("\n");
}
}
}
void DumpRecordCommand::DumpDataSection() {
record_file_reader_->ReadDataSection([](std::unique_ptr<Record> record) {
record->Dump();
return true;
});
}
void DumpRecordCommand::DumpFeatureSection() {
std::map<int, SectionDesc> section_map = record_file_reader_->FeatureSectionDescriptors();
for (const auto& pair : section_map) {
int feature = pair.first;
const auto& section = pair.second;
printf("feature section for %s: offset %" PRId64 ", size %" PRId64 "\n",
GetFeatureName(feature).c_str(), section.offset, section.size);
if (feature == FEAT_BUILD_ID) {
std::vector<BuildIdRecord> records = record_file_reader_->ReadBuildIdFeature();
for (auto& r : records) {
r.Dump(1);
}
} else if (feature == FEAT_OSRELEASE) {
std::string s = record_file_reader_->ReadFeatureString(feature);
PrintIndented(1, "osrelease: %s\n", s.c_str());
} else if (feature == FEAT_ARCH) {
std::string s = record_file_reader_->ReadFeatureString(feature);
PrintIndented(1, "arch: %s\n", s.c_str());
} else if (feature == FEAT_CMDLINE) {
std::vector<std::string> cmdline = record_file_reader_->ReadCmdlineFeature();
PrintIndented(1, "cmdline: %s\n", android::base::Join(cmdline, ' ').c_str());
}
}
}
__attribute__((constructor)) static void RegisterDumpRecordCommand() {
RegisterCommand("dump", [] { return std::unique_ptr<Command>(new DumpRecordCommand); });
}
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