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1431 lines
49 KiB
1431 lines
49 KiB
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "record.h"
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#include <inttypes.h>
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#include <algorithm>
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#include <unordered_map>
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#include <android-base/logging.h>
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#include <android-base/stringprintf.h>
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#include "OfflineUnwinder.h"
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#include "dso.h"
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#include "perf_regs.h"
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#include "tracing.h"
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#include "utils.h"
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namespace simpleperf {
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static std::string RecordTypeToString(int record_type) {
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static std::unordered_map<int, std::string> record_type_names = {
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{PERF_RECORD_MMAP, "mmap"},
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{PERF_RECORD_LOST, "lost"},
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{PERF_RECORD_COMM, "comm"},
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{PERF_RECORD_EXIT, "exit"},
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{PERF_RECORD_THROTTLE, "throttle"},
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{PERF_RECORD_UNTHROTTLE, "unthrottle"},
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{PERF_RECORD_FORK, "fork"},
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{PERF_RECORD_READ, "read"},
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{PERF_RECORD_SAMPLE, "sample"},
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{PERF_RECORD_BUILD_ID, "build_id"},
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{PERF_RECORD_MMAP2, "mmap2"},
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{PERF_RECORD_AUX, "aux"},
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{PERF_RECORD_TRACING_DATA, "tracing_data"},
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{PERF_RECORD_AUXTRACE_INFO, "auxtrace_info"},
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{PERF_RECORD_AUXTRACE, "auxtrace"},
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{SIMPLE_PERF_RECORD_KERNEL_SYMBOL, "kernel_symbol"},
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{SIMPLE_PERF_RECORD_DSO, "dso"},
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{SIMPLE_PERF_RECORD_SYMBOL, "symbol"},
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{SIMPLE_PERF_RECORD_EVENT_ID, "event_id"},
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{SIMPLE_PERF_RECORD_CALLCHAIN, "callchain"},
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{SIMPLE_PERF_RECORD_UNWINDING_RESULT, "unwinding_result"},
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{SIMPLE_PERF_RECORD_TRACING_DATA, "tracing_data"},
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};
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auto it = record_type_names.find(record_type);
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if (it != record_type_names.end()) {
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return it->second;
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}
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return android::base::StringPrintf("unknown(%d)", record_type);
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}
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template <>
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void MoveToBinaryFormat(const RecordHeader& data, char*& p) {
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data.MoveToBinaryFormat(p);
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}
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SampleId::SampleId() {
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memset(this, 0, sizeof(SampleId));
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}
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// Return sample_id size in binary format.
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size_t SampleId::CreateContent(const perf_event_attr& attr, uint64_t event_id) {
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sample_id_all = attr.sample_id_all;
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sample_type = attr.sample_type;
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id_data.id = event_id;
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// Other data are not necessary. TODO: Set missing SampleId data.
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return Size();
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}
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void SampleId::ReadFromBinaryFormat(const perf_event_attr& attr, const char* p, const char* end) {
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sample_id_all = attr.sample_id_all;
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sample_type = attr.sample_type;
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if (sample_id_all) {
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if (sample_type & PERF_SAMPLE_TID) {
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MoveFromBinaryFormat(tid_data, p);
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}
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if (sample_type & PERF_SAMPLE_TIME) {
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MoveFromBinaryFormat(time_data, p);
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}
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if (sample_type & PERF_SAMPLE_ID) {
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MoveFromBinaryFormat(id_data, p);
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}
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if (sample_type & PERF_SAMPLE_STREAM_ID) {
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MoveFromBinaryFormat(stream_id_data, p);
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}
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if (sample_type & PERF_SAMPLE_CPU) {
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MoveFromBinaryFormat(cpu_data, p);
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}
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if (sample_type & PERF_SAMPLE_IDENTIFIER) {
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MoveFromBinaryFormat(id_data, p);
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}
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}
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CHECK_LE(p, end);
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if (p < end) {
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LOG(DEBUG) << "Record SampleId part has " << end - p << " bytes left\n";
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}
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}
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void SampleId::WriteToBinaryFormat(char*& p) const {
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if (sample_id_all) {
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if (sample_type & PERF_SAMPLE_TID) {
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MoveToBinaryFormat(tid_data, p);
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}
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if (sample_type & PERF_SAMPLE_TIME) {
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MoveToBinaryFormat(time_data, p);
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}
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if (sample_type & PERF_SAMPLE_ID) {
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MoveToBinaryFormat(id_data, p);
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}
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if (sample_type & PERF_SAMPLE_STREAM_ID) {
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MoveToBinaryFormat(stream_id_data, p);
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}
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if (sample_type & PERF_SAMPLE_CPU) {
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MoveToBinaryFormat(cpu_data, p);
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}
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}
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}
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void SampleId::Dump(size_t indent) const {
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if (sample_id_all) {
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if (sample_type & PERF_SAMPLE_TID) {
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PrintIndented(indent, "sample_id: pid %u, tid %u\n", tid_data.pid, tid_data.tid);
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}
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if (sample_type & PERF_SAMPLE_TIME) {
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PrintIndented(indent, "sample_id: time %" PRId64 "\n", time_data.time);
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}
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if (sample_type & (PERF_SAMPLE_ID | PERF_SAMPLE_IDENTIFIER)) {
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PrintIndented(indent, "sample_id: id %" PRId64 "\n", id_data.id);
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}
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if (sample_type & PERF_SAMPLE_STREAM_ID) {
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PrintIndented(indent, "sample_id: stream_id %" PRId64 "\n", stream_id_data.stream_id);
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}
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if (sample_type & PERF_SAMPLE_CPU) {
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PrintIndented(indent, "sample_id: cpu %u, res %u\n", cpu_data.cpu, cpu_data.res);
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}
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}
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}
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size_t SampleId::Size() const {
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size_t size = 0;
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if (sample_id_all) {
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if (sample_type & PERF_SAMPLE_TID) {
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size += sizeof(PerfSampleTidType);
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}
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if (sample_type & PERF_SAMPLE_TIME) {
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size += sizeof(PerfSampleTimeType);
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}
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if (sample_type & PERF_SAMPLE_ID) {
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size += sizeof(PerfSampleIdType);
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}
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if (sample_type & PERF_SAMPLE_STREAM_ID) {
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size += sizeof(PerfSampleStreamIdType);
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}
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if (sample_type & PERF_SAMPLE_CPU) {
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size += sizeof(PerfSampleCpuType);
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}
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if (sample_type & PERF_SAMPLE_IDENTIFIER) {
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size += sizeof(PerfSampleIdType);
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}
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}
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return size;
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}
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Record::Record(Record&& other) noexcept {
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header = other.header;
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sample_id = other.sample_id;
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binary_ = other.binary_;
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own_binary_ = other.own_binary_;
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other.binary_ = nullptr;
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other.own_binary_ = false;
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}
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void Record::Dump(size_t indent) const {
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PrintIndented(indent, "record %s: type %u, misc %u, size %u\n",
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RecordTypeToString(type()).c_str(), type(), misc(), size());
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DumpData(indent + 1);
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sample_id.Dump(indent + 1);
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}
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uint64_t Record::Timestamp() const {
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return sample_id.time_data.time;
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}
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uint32_t Record::Cpu() const {
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return sample_id.cpu_data.cpu;
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}
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uint64_t Record::Id() const {
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return sample_id.id_data.id;
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}
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void Record::UpdateBinary(char* new_binary) {
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if (own_binary_) {
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delete[] binary_;
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}
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own_binary_ = true;
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binary_ = new_binary;
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}
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MmapRecord::MmapRecord(const perf_event_attr& attr, char* p) : Record(p) {
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const char* end = p + size();
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p += header_size();
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data = reinterpret_cast<const MmapRecordDataType*>(p);
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p += sizeof(*data);
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filename = p;
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p += Align(strlen(filename) + 1, 8);
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CHECK_LE(p, end);
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sample_id.ReadFromBinaryFormat(attr, p, end);
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}
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MmapRecord::MmapRecord(const perf_event_attr& attr, bool in_kernel, uint32_t pid, uint32_t tid,
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uint64_t addr, uint64_t len, uint64_t pgoff, const std::string& filename,
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uint64_t event_id, uint64_t time) {
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SetTypeAndMisc(PERF_RECORD_MMAP, in_kernel ? PERF_RECORD_MISC_KERNEL : PERF_RECORD_MISC_USER);
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sample_id.CreateContent(attr, event_id);
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sample_id.time_data.time = time;
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MmapRecordDataType data;
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data.pid = pid;
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data.tid = tid;
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data.addr = addr;
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data.len = len;
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data.pgoff = pgoff;
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SetDataAndFilename(data, filename);
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}
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void MmapRecord::SetDataAndFilename(const MmapRecordDataType& data, const std::string& filename) {
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SetSize(header_size() + sizeof(data) + Align(filename.size() + 1, 8) + sample_id.Size());
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char* new_binary = new char[size()];
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char* p = new_binary;
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MoveToBinaryFormat(header, p);
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this->data = reinterpret_cast<MmapRecordDataType*>(p);
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MoveToBinaryFormat(data, p);
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this->filename = p;
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strcpy(p, filename.c_str());
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p += Align(filename.size() + 1, 8);
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sample_id.WriteToBinaryFormat(p);
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UpdateBinary(new_binary);
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}
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void MmapRecord::DumpData(size_t indent) const {
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PrintIndented(indent, "pid %u, tid %u, addr 0x%" PRIx64 ", len 0x%" PRIx64 "\n", data->pid,
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data->tid, data->addr, data->len);
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PrintIndented(indent, "pgoff 0x%" PRIx64 ", filename %s\n", data->pgoff, filename);
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}
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Mmap2Record::Mmap2Record(const perf_event_attr& attr, char* p) : Record(p) {
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const char* end = p + size();
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p += header_size();
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data = reinterpret_cast<const Mmap2RecordDataType*>(p);
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p += sizeof(*data);
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filename = p;
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p += Align(strlen(filename) + 1, 8);
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CHECK_LE(p, end);
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sample_id.ReadFromBinaryFormat(attr, p, end);
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}
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Mmap2Record::Mmap2Record(const perf_event_attr& attr, bool in_kernel, uint32_t pid, uint32_t tid,
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uint64_t addr, uint64_t len, uint64_t pgoff, uint32_t prot,
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const std::string& filename, uint64_t event_id, uint64_t time) {
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SetTypeAndMisc(PERF_RECORD_MMAP2, in_kernel ? PERF_RECORD_MISC_KERNEL : PERF_RECORD_MISC_USER);
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sample_id.CreateContent(attr, event_id);
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sample_id.time_data.time = time;
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Mmap2RecordDataType data;
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data.pid = pid;
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data.tid = tid;
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data.addr = addr;
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data.len = len;
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data.pgoff = pgoff;
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data.prot = prot;
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SetDataAndFilename(data, filename);
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}
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void Mmap2Record::SetDataAndFilename(const Mmap2RecordDataType& data, const std::string& filename) {
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SetSize(header_size() + sizeof(data) + Align(filename.size() + 1, 8) + sample_id.Size());
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char* new_binary = new char[size()];
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char* p = new_binary;
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MoveToBinaryFormat(header, p);
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this->data = reinterpret_cast<Mmap2RecordDataType*>(p);
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MoveToBinaryFormat(data, p);
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this->filename = p;
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strcpy(p, filename.c_str());
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p += Align(filename.size() + 1, 8);
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sample_id.WriteToBinaryFormat(p);
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UpdateBinary(new_binary);
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}
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void Mmap2Record::DumpData(size_t indent) const {
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PrintIndented(indent, "pid %u, tid %u, addr 0x%" PRIx64 ", len 0x%" PRIx64 "\n", data->pid,
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data->tid, data->addr, data->len);
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PrintIndented(
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indent, "pgoff 0x%" PRIx64 ", maj %u, min %u, ino %" PRId64 ", ino_generation %" PRIu64 "\n",
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data->pgoff, data->maj, data->min, data->ino, data->ino_generation);
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PrintIndented(indent, "prot %u, flags %u, filename %s\n", data->prot, data->flags, filename);
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}
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CommRecord::CommRecord(const perf_event_attr& attr, char* p) : Record(p) {
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const char* end = p + size();
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p += header_size();
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data = reinterpret_cast<const CommRecordDataType*>(p);
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p += sizeof(*data);
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comm = p;
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p += Align(strlen(p) + 1, 8);
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CHECK_LE(p, end);
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sample_id.ReadFromBinaryFormat(attr, p, end);
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}
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CommRecord::CommRecord(const perf_event_attr& attr, uint32_t pid, uint32_t tid,
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const std::string& comm, uint64_t event_id, uint64_t time) {
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SetTypeAndMisc(PERF_RECORD_COMM, 0);
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CommRecordDataType data;
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data.pid = pid;
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data.tid = tid;
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size_t sample_id_size = sample_id.CreateContent(attr, event_id);
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sample_id.time_data.time = time;
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SetSize(header_size() + sizeof(data) + Align(comm.size() + 1, 8) + sample_id_size);
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char* new_binary = new char[size()];
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char* p = new_binary;
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MoveToBinaryFormat(header, p);
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this->data = reinterpret_cast<CommRecordDataType*>(p);
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MoveToBinaryFormat(data, p);
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this->comm = p;
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strcpy(p, comm.c_str());
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p += Align(comm.size() + 1, 8);
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sample_id.WriteToBinaryFormat(p);
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UpdateBinary(new_binary);
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}
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void CommRecord::SetCommandName(const std::string& name) {
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if (name.compare(comm) == 0) {
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return;
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}
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// The kernel uses a 8-byte aligned space to store command name. Follow it here to allow the same
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// reading code.
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size_t old_name_len = Align(strlen(comm) + 1, 8);
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size_t new_name_len = Align(name.size() + 1, 8);
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size_t new_size = size() - old_name_len + new_name_len;
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char* new_binary = new char[new_size];
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char* p = new_binary;
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header.size = new_size;
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MoveToBinaryFormat(header, p);
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MoveToBinaryFormat(*data, p);
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data = reinterpret_cast<CommRecordDataType*>(p - sizeof(CommRecordDataType));
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comm = p;
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strcpy(p, name.c_str());
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p += new_name_len;
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sample_id.WriteToBinaryFormat(p);
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CHECK_EQ(p, new_binary + new_size);
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UpdateBinary(new_binary);
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}
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void CommRecord::DumpData(size_t indent) const {
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PrintIndented(indent, "pid %u, tid %u, comm %s\n", data->pid, data->tid, comm);
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}
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ExitOrForkRecord::ExitOrForkRecord(const perf_event_attr& attr, char* p) : Record(p) {
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const char* end = p + size();
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p += header_size();
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data = reinterpret_cast<const ExitOrForkRecordDataType*>(p);
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p += sizeof(*data);
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CHECK_LE(p, end);
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sample_id.ReadFromBinaryFormat(attr, p, end);
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}
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void ExitOrForkRecord::DumpData(size_t indent) const {
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PrintIndented(indent, "pid %u, ppid %u, tid %u, ptid %u\n", data->pid, data->ppid, data->tid,
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data->ptid);
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}
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ForkRecord::ForkRecord(const perf_event_attr& attr, uint32_t pid, uint32_t tid, uint32_t ppid,
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uint32_t ptid, uint64_t event_id) {
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SetTypeAndMisc(PERF_RECORD_FORK, 0);
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ExitOrForkRecordDataType data;
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data.pid = pid;
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data.ppid = ppid;
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data.tid = tid;
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data.ptid = ptid;
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data.time = 0;
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size_t sample_id_size = sample_id.CreateContent(attr, event_id);
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SetSize(header_size() + sizeof(data) + sample_id_size);
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char* new_binary = new char[size()];
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char* p = new_binary;
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MoveToBinaryFormat(header, p);
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this->data = reinterpret_cast<ExitOrForkRecordDataType*>(p);
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MoveToBinaryFormat(data, p);
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sample_id.WriteToBinaryFormat(p);
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UpdateBinary(new_binary);
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}
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LostRecord::LostRecord(const perf_event_attr& attr, char* p) : Record(p) {
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const char* end = p + size();
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p += header_size();
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MoveFromBinaryFormat(id, p);
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MoveFromBinaryFormat(lost, p);
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CHECK_LE(p, end);
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sample_id.ReadFromBinaryFormat(attr, p, end);
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}
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void LostRecord::DumpData(size_t indent) const {
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PrintIndented(indent, "id %" PRIu64 ", lost %" PRIu64 "\n", id, lost);
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}
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SampleRecord::SampleRecord(const perf_event_attr& attr, char* p) : Record(p) {
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const char* end = p + size();
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p += header_size();
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sample_type = attr.sample_type;
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// Set a default id value to report correctly even if ID is not recorded.
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id_data.id = 0;
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if (sample_type & PERF_SAMPLE_IDENTIFIER) {
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MoveFromBinaryFormat(id_data, p);
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}
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if (sample_type & PERF_SAMPLE_IP) {
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MoveFromBinaryFormat(ip_data, p);
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}
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if (sample_type & PERF_SAMPLE_TID) {
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MoveFromBinaryFormat(tid_data, p);
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}
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if (sample_type & PERF_SAMPLE_TIME) {
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MoveFromBinaryFormat(time_data, p);
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}
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if (sample_type & PERF_SAMPLE_ADDR) {
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MoveFromBinaryFormat(addr_data, p);
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}
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if (sample_type & PERF_SAMPLE_ID) {
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MoveFromBinaryFormat(id_data, p);
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}
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if (sample_type & PERF_SAMPLE_STREAM_ID) {
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MoveFromBinaryFormat(stream_id_data, p);
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}
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if (sample_type & PERF_SAMPLE_CPU) {
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MoveFromBinaryFormat(cpu_data, p);
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}
|
|
if (sample_type & PERF_SAMPLE_PERIOD) {
|
|
MoveFromBinaryFormat(period_data, p);
|
|
}
|
|
if (sample_type & PERF_SAMPLE_CALLCHAIN) {
|
|
MoveFromBinaryFormat(callchain_data.ip_nr, p);
|
|
callchain_data.ips = reinterpret_cast<uint64_t*>(p);
|
|
p += callchain_data.ip_nr * sizeof(uint64_t);
|
|
}
|
|
if (sample_type & PERF_SAMPLE_RAW) {
|
|
MoveFromBinaryFormat(raw_data.size, p);
|
|
raw_data.data = p;
|
|
p += raw_data.size;
|
|
}
|
|
if (sample_type & PERF_SAMPLE_BRANCH_STACK) {
|
|
MoveFromBinaryFormat(branch_stack_data.stack_nr, p);
|
|
branch_stack_data.stack = reinterpret_cast<BranchStackItemType*>(p);
|
|
p += branch_stack_data.stack_nr * sizeof(BranchStackItemType);
|
|
}
|
|
if (sample_type & PERF_SAMPLE_REGS_USER) {
|
|
MoveFromBinaryFormat(regs_user_data.abi, p);
|
|
if (regs_user_data.abi == 0) {
|
|
regs_user_data.reg_mask = 0;
|
|
} else {
|
|
regs_user_data.reg_mask = attr.sample_regs_user;
|
|
size_t bit_nr = __builtin_popcountll(regs_user_data.reg_mask);
|
|
regs_user_data.reg_nr = bit_nr;
|
|
regs_user_data.regs = reinterpret_cast<uint64_t*>(p);
|
|
p += bit_nr * sizeof(uint64_t);
|
|
}
|
|
}
|
|
if (sample_type & PERF_SAMPLE_STACK_USER) {
|
|
MoveFromBinaryFormat(stack_user_data.size, p);
|
|
if (stack_user_data.size == 0) {
|
|
stack_user_data.dyn_size = 0;
|
|
} else {
|
|
stack_user_data.data = p;
|
|
p += stack_user_data.size;
|
|
MoveFromBinaryFormat(stack_user_data.dyn_size, p);
|
|
}
|
|
}
|
|
// TODO: Add parsing of other PERF_SAMPLE_*.
|
|
CHECK_LE(p, end);
|
|
if (p < end) {
|
|
LOG(DEBUG) << "Record has " << end - p << " bytes left\n";
|
|
}
|
|
}
|
|
|
|
SampleRecord::SampleRecord(const perf_event_attr& attr, uint64_t id, uint64_t ip, uint32_t pid,
|
|
uint32_t tid, uint64_t time, uint32_t cpu, uint64_t period,
|
|
const std::vector<uint64_t>& ips, const std::vector<char>& stack,
|
|
uint64_t dyn_stack_size) {
|
|
SetTypeAndMisc(PERF_RECORD_SAMPLE, PERF_RECORD_MISC_USER);
|
|
sample_type = attr.sample_type;
|
|
CHECK_EQ(0u,
|
|
sample_type & ~(PERF_SAMPLE_IP | PERF_SAMPLE_TID | PERF_SAMPLE_TIME | PERF_SAMPLE_ID |
|
|
PERF_SAMPLE_CPU | PERF_SAMPLE_PERIOD | PERF_SAMPLE_CALLCHAIN |
|
|
PERF_SAMPLE_REGS_USER | PERF_SAMPLE_STACK_USER));
|
|
ip_data.ip = ip;
|
|
tid_data.pid = pid;
|
|
tid_data.tid = tid;
|
|
time_data.time = time;
|
|
id_data.id = id;
|
|
cpu_data.cpu = cpu;
|
|
cpu_data.res = 0;
|
|
period_data.period = period;
|
|
callchain_data.ip_nr = ips.size();
|
|
raw_data.size = 0;
|
|
branch_stack_data.stack_nr = 0;
|
|
regs_user_data.abi = 0;
|
|
regs_user_data.reg_mask = 0;
|
|
regs_user_data.reg_nr = 0;
|
|
stack_user_data.size = stack.size();
|
|
stack_user_data.dyn_size = dyn_stack_size;
|
|
|
|
uint32_t size = header_size();
|
|
if (sample_type & PERF_SAMPLE_IP) {
|
|
size += sizeof(ip_data);
|
|
}
|
|
if (sample_type & PERF_SAMPLE_TID) {
|
|
size += sizeof(tid_data);
|
|
}
|
|
if (sample_type & PERF_SAMPLE_TIME) {
|
|
size += sizeof(time_data);
|
|
}
|
|
if (sample_type & PERF_SAMPLE_ID) {
|
|
size += sizeof(id_data);
|
|
}
|
|
if (sample_type & PERF_SAMPLE_CPU) {
|
|
size += sizeof(cpu_data);
|
|
}
|
|
if (sample_type & PERF_SAMPLE_PERIOD) {
|
|
size += sizeof(period_data);
|
|
}
|
|
if (sample_type & PERF_SAMPLE_CALLCHAIN) {
|
|
size += sizeof(uint64_t) * (ips.size() + 1);
|
|
}
|
|
if (sample_type & PERF_SAMPLE_REGS_USER) {
|
|
size += sizeof(uint64_t);
|
|
}
|
|
if (sample_type & PERF_SAMPLE_STACK_USER) {
|
|
size += sizeof(uint64_t) + (stack.empty() ? 0 : stack.size() + sizeof(uint64_t));
|
|
}
|
|
|
|
SetSize(size);
|
|
char* new_binary = new char[size];
|
|
char* p = new_binary;
|
|
MoveToBinaryFormat(header, p);
|
|
if (sample_type & PERF_SAMPLE_IP) {
|
|
MoveToBinaryFormat(ip_data, p);
|
|
}
|
|
if (sample_type & PERF_SAMPLE_TID) {
|
|
MoveToBinaryFormat(tid_data, p);
|
|
}
|
|
if (sample_type & PERF_SAMPLE_TIME) {
|
|
MoveToBinaryFormat(time_data, p);
|
|
}
|
|
if (sample_type & PERF_SAMPLE_ID) {
|
|
MoveToBinaryFormat(id_data, p);
|
|
}
|
|
if (sample_type & PERF_SAMPLE_CPU) {
|
|
MoveToBinaryFormat(cpu_data, p);
|
|
}
|
|
if (sample_type & PERF_SAMPLE_PERIOD) {
|
|
MoveToBinaryFormat(period_data, p);
|
|
}
|
|
if (sample_type & PERF_SAMPLE_CALLCHAIN) {
|
|
MoveToBinaryFormat(callchain_data.ip_nr, p);
|
|
callchain_data.ips = reinterpret_cast<uint64_t*>(p);
|
|
MoveToBinaryFormat(ips.data(), ips.size(), p);
|
|
}
|
|
if (sample_type & PERF_SAMPLE_REGS_USER) {
|
|
MoveToBinaryFormat(regs_user_data.abi, p);
|
|
}
|
|
if (sample_type & PERF_SAMPLE_STACK_USER) {
|
|
MoveToBinaryFormat(stack_user_data.size, p);
|
|
if (stack_user_data.size > 0) {
|
|
stack_user_data.data = p;
|
|
MoveToBinaryFormat(stack.data(), stack_user_data.size, p);
|
|
MoveToBinaryFormat(stack_user_data.dyn_size, p);
|
|
}
|
|
}
|
|
CHECK_EQ(p, new_binary + size);
|
|
UpdateBinary(new_binary);
|
|
}
|
|
|
|
void SampleRecord::ReplaceRegAndStackWithCallChain(const std::vector<uint64_t>& ips) {
|
|
uint32_t size_added_in_callchain = sizeof(uint64_t) * (ips.size() + 1);
|
|
uint32_t size_reduced_in_reg_stack =
|
|
regs_user_data.reg_nr * sizeof(uint64_t) + stack_user_data.size + sizeof(uint64_t);
|
|
uint32_t new_size = size() + size_added_in_callchain - size_reduced_in_reg_stack;
|
|
BuildBinaryWithNewCallChain(new_size, ips);
|
|
}
|
|
|
|
bool SampleRecord::ExcludeKernelCallChain() {
|
|
if (!(sample_type & PERF_SAMPLE_CALLCHAIN)) {
|
|
return true;
|
|
}
|
|
size_t i;
|
|
for (i = 0; i < callchain_data.ip_nr; ++i) {
|
|
if (callchain_data.ips[i] == PERF_CONTEXT_USER) {
|
|
break;
|
|
}
|
|
// Erase kernel callchain.
|
|
callchain_data.ips[i] = PERF_CONTEXT_USER;
|
|
}
|
|
while (++i < callchain_data.ip_nr) {
|
|
if (callchain_data.ips[i] < PERF_CONTEXT_MAX) {
|
|
// Change the sample to make it hit the user space ip address.
|
|
ip_data.ip = callchain_data.ips[i];
|
|
if (sample_type & PERF_SAMPLE_IP) {
|
|
*reinterpret_cast<uint64_t*>(binary_ + header_size()) = ip_data.ip;
|
|
}
|
|
header.misc = (header.misc & ~PERF_RECORD_MISC_CPUMODE_MASK) | PERF_RECORD_MISC_USER;
|
|
reinterpret_cast<perf_event_header*>(binary_)->misc = header.misc;
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool SampleRecord::HasUserCallChain() const {
|
|
if ((sample_type & PERF_SAMPLE_CALLCHAIN) == 0) {
|
|
return false;
|
|
}
|
|
bool in_user_context = !InKernel();
|
|
for (size_t i = 0; i < callchain_data.ip_nr; ++i) {
|
|
if (in_user_context && callchain_data.ips[i] < PERF_CONTEXT_MAX) {
|
|
return true;
|
|
}
|
|
if (callchain_data.ips[i] == PERF_CONTEXT_USER) {
|
|
in_user_context = true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void SampleRecord::UpdateUserCallChain(const std::vector<uint64_t>& user_ips) {
|
|
size_t kernel_ip_count = 0;
|
|
for (size_t i = 0; i < callchain_data.ip_nr; ++i) {
|
|
if (callchain_data.ips[i] == PERF_CONTEXT_USER) {
|
|
break;
|
|
}
|
|
kernel_ip_count++;
|
|
}
|
|
if (kernel_ip_count + 1 + user_ips.size() <= callchain_data.ip_nr) {
|
|
// Callchain isn't changed.
|
|
return;
|
|
}
|
|
size_t new_size =
|
|
size() + (kernel_ip_count + 1 + user_ips.size() - callchain_data.ip_nr) * sizeof(uint64_t);
|
|
callchain_data.ip_nr = kernel_ip_count;
|
|
BuildBinaryWithNewCallChain(new_size, user_ips);
|
|
}
|
|
|
|
void SampleRecord::BuildBinaryWithNewCallChain(uint32_t new_size,
|
|
const std::vector<uint64_t>& ips) {
|
|
size_t callchain_pos = reinterpret_cast<char*>(callchain_data.ips) - binary_ - sizeof(uint64_t);
|
|
char* new_binary = binary_;
|
|
if (new_size > size()) {
|
|
new_binary = new char[new_size];
|
|
memcpy(new_binary, binary_, callchain_pos);
|
|
}
|
|
char* p = new_binary;
|
|
SetSize(new_size);
|
|
MoveToBinaryFormat(header, p);
|
|
p = new_binary + new_size;
|
|
if (sample_type & PERF_SAMPLE_STACK_USER) {
|
|
stack_user_data.size = 0;
|
|
p -= sizeof(uint64_t);
|
|
memcpy(p, &stack_user_data.size, sizeof(uint64_t));
|
|
}
|
|
if (sample_type & PERF_SAMPLE_REGS_USER) {
|
|
regs_user_data.abi = 0;
|
|
p -= sizeof(uint64_t);
|
|
memcpy(p, ®s_user_data.abi, sizeof(uint64_t));
|
|
}
|
|
if (sample_type & PERF_SAMPLE_BRANCH_STACK) {
|
|
p -= branch_stack_data.stack_nr * sizeof(BranchStackItemType);
|
|
memcpy(p, branch_stack_data.stack, branch_stack_data.stack_nr * sizeof(BranchStackItemType));
|
|
branch_stack_data.stack = reinterpret_cast<BranchStackItemType*>(p);
|
|
p -= sizeof(uint64_t);
|
|
memcpy(p, &branch_stack_data.stack_nr, sizeof(uint64_t));
|
|
}
|
|
if (sample_type & PERF_SAMPLE_RAW) {
|
|
p -= raw_data.size;
|
|
memcpy(p, raw_data.data, raw_data.size);
|
|
raw_data.data = p;
|
|
p -= sizeof(uint32_t);
|
|
memcpy(p, &raw_data.size, sizeof(uint32_t));
|
|
}
|
|
uint64_t* p64 = reinterpret_cast<uint64_t*>(p);
|
|
p64 -= ips.size();
|
|
memcpy(p64, ips.data(), ips.size() * sizeof(uint64_t));
|
|
*--p64 = PERF_CONTEXT_USER;
|
|
if (callchain_data.ip_nr > 0) {
|
|
p64 -= callchain_data.ip_nr;
|
|
memcpy(p64, callchain_data.ips, callchain_data.ip_nr * sizeof(uint64_t));
|
|
}
|
|
callchain_data.ips = p64;
|
|
callchain_data.ip_nr += 1 + ips.size();
|
|
*--p64 = callchain_data.ip_nr;
|
|
CHECK_EQ(callchain_pos, static_cast<size_t>(reinterpret_cast<char*>(p64) - new_binary))
|
|
<< "record time " << time_data.time;
|
|
if (new_binary != binary_) {
|
|
UpdateBinary(new_binary);
|
|
}
|
|
}
|
|
|
|
void SampleRecord::DumpData(size_t indent) const {
|
|
PrintIndented(indent, "sample_type: 0x%" PRIx64 "\n", sample_type);
|
|
if (sample_type & PERF_SAMPLE_IP) {
|
|
PrintIndented(indent, "ip %p\n", reinterpret_cast<void*>(ip_data.ip));
|
|
}
|
|
if (sample_type & PERF_SAMPLE_TID) {
|
|
PrintIndented(indent, "pid %u, tid %u\n", tid_data.pid, tid_data.tid);
|
|
}
|
|
if (sample_type & PERF_SAMPLE_TIME) {
|
|
PrintIndented(indent, "time %" PRId64 "\n", time_data.time);
|
|
}
|
|
if (sample_type & PERF_SAMPLE_ADDR) {
|
|
PrintIndented(indent, "addr %p\n", reinterpret_cast<void*>(addr_data.addr));
|
|
}
|
|
if (sample_type & (PERF_SAMPLE_ID | PERF_SAMPLE_IDENTIFIER)) {
|
|
PrintIndented(indent, "id %" PRId64 "\n", id_data.id);
|
|
}
|
|
if (sample_type & PERF_SAMPLE_STREAM_ID) {
|
|
PrintIndented(indent, "stream_id %" PRId64 "\n", stream_id_data.stream_id);
|
|
}
|
|
if (sample_type & PERF_SAMPLE_CPU) {
|
|
PrintIndented(indent, "cpu %u, res %u\n", cpu_data.cpu, cpu_data.res);
|
|
}
|
|
if (sample_type & PERF_SAMPLE_PERIOD) {
|
|
PrintIndented(indent, "period %" PRId64 "\n", period_data.period);
|
|
}
|
|
if (sample_type & PERF_SAMPLE_CALLCHAIN) {
|
|
PrintIndented(indent, "callchain nr=%" PRIu64 "\n", callchain_data.ip_nr);
|
|
for (uint64_t i = 0; i < callchain_data.ip_nr; ++i) {
|
|
PrintIndented(indent + 1, "0x%" PRIx64 "\n", callchain_data.ips[i]);
|
|
}
|
|
}
|
|
if (sample_type & PERF_SAMPLE_RAW) {
|
|
PrintIndented(indent, "raw size=%zu\n", raw_data.size);
|
|
const uint32_t* data = reinterpret_cast<const uint32_t*>(raw_data.data);
|
|
size_t size = raw_data.size / sizeof(uint32_t);
|
|
for (size_t i = 0; i < size; ++i) {
|
|
PrintIndented(indent + 1, "0x%08x (%zu)\n", data[i], data[i]);
|
|
}
|
|
}
|
|
if (sample_type & PERF_SAMPLE_BRANCH_STACK) {
|
|
PrintIndented(indent, "branch_stack nr=%" PRIu64 "\n", branch_stack_data.stack_nr);
|
|
for (uint64_t i = 0; i < branch_stack_data.stack_nr; ++i) {
|
|
auto& item = branch_stack_data.stack[i];
|
|
PrintIndented(indent + 1, "from 0x%" PRIx64 ", to 0x%" PRIx64 ", flags 0x%" PRIx64 "\n",
|
|
item.from, item.to, item.flags);
|
|
}
|
|
}
|
|
if (sample_type & PERF_SAMPLE_REGS_USER) {
|
|
PrintIndented(indent, "user regs: abi=%" PRId64 "\n", regs_user_data.abi);
|
|
RegSet regs(regs_user_data.abi, regs_user_data.reg_mask, regs_user_data.regs);
|
|
for (size_t i = 0; i < 64; ++i) {
|
|
uint64_t value;
|
|
if (regs.GetRegValue(i, &value)) {
|
|
PrintIndented(indent + 1, "reg (%s) 0x%016" PRIx64 "\n", GetRegName(i, regs.arch).c_str(),
|
|
value);
|
|
}
|
|
}
|
|
}
|
|
if (sample_type & PERF_SAMPLE_STACK_USER) {
|
|
PrintIndented(indent, "user stack: size %zu dyn_size %" PRIu64 "\n", stack_user_data.size,
|
|
stack_user_data.dyn_size);
|
|
const uint64_t* p = reinterpret_cast<const uint64_t*>(stack_user_data.data);
|
|
const uint64_t* end = p + (stack_user_data.size / sizeof(uint64_t));
|
|
while (p < end) {
|
|
PrintIndented(indent + 1, "");
|
|
for (size_t i = 0; i < 4 && p < end; ++i, ++p) {
|
|
printf(" %016" PRIx64, *p);
|
|
}
|
|
printf("\n");
|
|
}
|
|
printf("\n");
|
|
}
|
|
}
|
|
|
|
uint64_t SampleRecord::Timestamp() const {
|
|
return time_data.time;
|
|
}
|
|
uint32_t SampleRecord::Cpu() const {
|
|
return cpu_data.cpu;
|
|
}
|
|
uint64_t SampleRecord::Id() const {
|
|
return id_data.id;
|
|
}
|
|
|
|
void SampleRecord::AdjustCallChainGeneratedByKernel() {
|
|
// The kernel stores return addrs in the callchain, but we want the addrs of call instructions
|
|
// along the callchain.
|
|
uint64_t* ips = callchain_data.ips;
|
|
uint64_t context =
|
|
header.misc == PERF_RECORD_MISC_KERNEL ? PERF_CONTEXT_KERNEL : PERF_CONTEXT_USER;
|
|
bool first_frame = true;
|
|
for (size_t i = 0; i < callchain_data.ip_nr; ++i) {
|
|
if (ips[i] < PERF_CONTEXT_MAX) {
|
|
if (first_frame) {
|
|
first_frame = false;
|
|
} else {
|
|
if (ips[i] < 2) {
|
|
// A wrong ip address, erase it.
|
|
ips[i] = context;
|
|
} else {
|
|
// Here we want to change the return addr to the addr of the previous instruction. We
|
|
// don't need to find the exact start addr of the previous instruction. A location in
|
|
// [start_addr_of_call_inst, start_addr_of_next_inst) is enough.
|
|
#if defined(__arm__) || defined(__aarch64__)
|
|
// If we are built for arm/aarch64, this may be a callchain of thumb code. For thumb code,
|
|
// the real instruction addr is (ip & ~1), and ip - 2 can used to hit the address range
|
|
// of the previous instruction. For non thumb code, any addr in [ip - 4, ip - 1] is fine.
|
|
ips[i] -= 2;
|
|
#else
|
|
ips[i]--;
|
|
#endif
|
|
}
|
|
}
|
|
} else {
|
|
context = ips[i];
|
|
}
|
|
}
|
|
}
|
|
|
|
std::vector<uint64_t> SampleRecord::GetCallChain(size_t* kernel_ip_count) const {
|
|
std::vector<uint64_t> ips;
|
|
bool in_kernel = InKernel();
|
|
ips.push_back(ip_data.ip);
|
|
*kernel_ip_count = in_kernel ? 1 : 0;
|
|
if ((sample_type & PERF_SAMPLE_CALLCHAIN) == 0) {
|
|
return ips;
|
|
}
|
|
bool first_ip = true;
|
|
for (uint64_t i = 0; i < callchain_data.ip_nr; ++i) {
|
|
uint64_t ip = callchain_data.ips[i];
|
|
if (ip >= PERF_CONTEXT_MAX) {
|
|
switch (ip) {
|
|
case PERF_CONTEXT_KERNEL:
|
|
in_kernel = true;
|
|
break;
|
|
case PERF_CONTEXT_USER:
|
|
in_kernel = false;
|
|
break;
|
|
default:
|
|
LOG(DEBUG) << "Unexpected perf_context in callchain: " << std::hex << ip << std::dec;
|
|
}
|
|
} else {
|
|
if (first_ip) {
|
|
first_ip = false;
|
|
// Remove duplication with sample ip.
|
|
if (ip == ip_data.ip) {
|
|
continue;
|
|
}
|
|
}
|
|
ips.push_back(ip);
|
|
if (in_kernel) {
|
|
++*kernel_ip_count;
|
|
}
|
|
}
|
|
}
|
|
return ips;
|
|
}
|
|
|
|
AuxRecord::AuxRecord(const perf_event_attr& attr, char* p) : Record(p) {
|
|
const char* end = p + size();
|
|
p += header_size();
|
|
data = reinterpret_cast<DataType*>(p);
|
|
p += sizeof(DataType);
|
|
sample_id.ReadFromBinaryFormat(attr, p, end);
|
|
}
|
|
|
|
void AuxRecord::DumpData(size_t indent) const {
|
|
PrintIndented(indent, "aux_offset %" PRIu64 "\n", data->aux_offset);
|
|
PrintIndented(indent, "aux_size %" PRIu64 "\n", data->aux_size);
|
|
PrintIndented(indent, "flags 0x%" PRIx64 "\n", data->flags);
|
|
}
|
|
|
|
BuildIdRecord::BuildIdRecord(char* p) : Record(p) {
|
|
const char* end = p + size();
|
|
p += header_size();
|
|
MoveFromBinaryFormat(pid, p);
|
|
build_id = BuildId(p, BUILD_ID_SIZE);
|
|
p += Align(build_id.Size(), 8);
|
|
filename = p;
|
|
p += Align(strlen(filename) + 1, 64);
|
|
CHECK_EQ(p, end);
|
|
}
|
|
|
|
void BuildIdRecord::DumpData(size_t indent) const {
|
|
PrintIndented(indent, "pid %u\n", pid);
|
|
PrintIndented(indent, "build_id %s\n", build_id.ToString().c_str());
|
|
PrintIndented(indent, "filename %s\n", filename);
|
|
}
|
|
|
|
BuildIdRecord::BuildIdRecord(bool in_kernel, uint32_t pid, const BuildId& build_id,
|
|
const std::string& filename) {
|
|
SetTypeAndMisc(PERF_RECORD_BUILD_ID, in_kernel ? PERF_RECORD_MISC_KERNEL : PERF_RECORD_MISC_USER);
|
|
this->pid = pid;
|
|
this->build_id = build_id;
|
|
SetSize(header_size() + sizeof(this->pid) + Align(build_id.Size(), 8) +
|
|
Align(filename.size() + 1, 64));
|
|
char* new_binary = new char[size()];
|
|
char* p = new_binary;
|
|
MoveToBinaryFormat(header, p);
|
|
MoveToBinaryFormat(this->pid, p);
|
|
memcpy(p, build_id.Data(), build_id.Size());
|
|
p += Align(build_id.Size(), 8);
|
|
this->filename = p;
|
|
strcpy(p, filename.c_str());
|
|
UpdateBinary(new_binary);
|
|
}
|
|
|
|
AuxTraceInfoRecord::AuxTraceInfoRecord(char* p) : Record(p) {
|
|
const char* end = p + size();
|
|
p += header_size();
|
|
data = reinterpret_cast<DataType*>(p);
|
|
CHECK_EQ(data->aux_type, AUX_TYPE_ETM);
|
|
CHECK_EQ(data->version, 0);
|
|
for (uint32_t i = 0; i < data->nr_cpu; ++i) {
|
|
CHECK_EQ(data->etm4_info[i].magic, MAGIC_ETM4);
|
|
}
|
|
p += sizeof(DataType) + data->nr_cpu * sizeof(ETM4Info);
|
|
CHECK_EQ(p, end);
|
|
}
|
|
|
|
AuxTraceInfoRecord::AuxTraceInfoRecord(const DataType& data,
|
|
const std::vector<ETM4Info>& etm4_info) {
|
|
SetTypeAndMisc(PERF_RECORD_AUXTRACE_INFO, 0);
|
|
SetSize(header_size() + sizeof(DataType) + sizeof(ETM4Info) * etm4_info.size());
|
|
char* new_binary = new char[size()];
|
|
char* p = new_binary;
|
|
MoveToBinaryFormat(header, p);
|
|
this->data = reinterpret_cast<DataType*>(p);
|
|
MoveToBinaryFormat(data, p);
|
|
for (auto& etm4 : etm4_info) {
|
|
MoveToBinaryFormat(etm4, p);
|
|
}
|
|
UpdateBinary(new_binary);
|
|
}
|
|
|
|
void AuxTraceInfoRecord::DumpData(size_t indent) const {
|
|
PrintIndented(indent, "aux_type %u\n", data->aux_type);
|
|
PrintIndented(indent, "version %" PRIu64 "\n", data->version);
|
|
PrintIndented(indent, "nr_cpu %u\n", data->nr_cpu);
|
|
PrintIndented(indent, "pmu_type %u\n", data->pmu_type);
|
|
PrintIndented(indent, "snapshot %" PRIu64 "\n", data->snapshot);
|
|
indent++;
|
|
for (int i = 0; i < data->nr_cpu; i++) {
|
|
const ETM4Info& e = data->etm4_info[i];
|
|
PrintIndented(indent, "magic 0x%" PRIx64 "\n", e.magic);
|
|
PrintIndented(indent, "cpu %" PRIu64 "\n", e.cpu);
|
|
PrintIndented(indent, "trcconfigr 0x%" PRIx64 "\n", e.trcconfigr);
|
|
PrintIndented(indent, "trctraceidr 0x%" PRIx64 "\n", e.trctraceidr);
|
|
PrintIndented(indent, "trcidr0 0x%" PRIx64 "\n", e.trcidr0);
|
|
PrintIndented(indent, "trcidr1 0x%" PRIx64 "\n", e.trcidr1);
|
|
PrintIndented(indent, "trcidr2 0x%" PRIx64 "\n", e.trcidr2);
|
|
PrintIndented(indent, "trcidr8 0x%" PRIx64 "\n", e.trcidr8);
|
|
PrintIndented(indent, "trcauthstatus 0x%" PRIx64 "\n", e.trcauthstatus);
|
|
}
|
|
}
|
|
|
|
AuxTraceRecord::AuxTraceRecord(char* p) : Record(p) {
|
|
const char* end = p + header.size;
|
|
p += header_size();
|
|
data = reinterpret_cast<DataType*>(p);
|
|
p += sizeof(DataType);
|
|
CHECK_EQ(p, end);
|
|
}
|
|
|
|
AuxTraceRecord::AuxTraceRecord(uint64_t aux_size, uint64_t offset, uint32_t idx, uint32_t tid,
|
|
uint32_t cpu) {
|
|
SetTypeAndMisc(PERF_RECORD_AUXTRACE, 0);
|
|
SetSize(header_size() + sizeof(DataType));
|
|
char* new_binary = new char[size()];
|
|
char* p = new_binary;
|
|
MoveToBinaryFormat(header, p);
|
|
data = reinterpret_cast<DataType*>(p);
|
|
data->aux_size = aux_size;
|
|
data->offset = offset;
|
|
data->reserved0 = 0;
|
|
data->idx = idx;
|
|
data->tid = tid;
|
|
data->cpu = cpu;
|
|
data->reserved1 = 0;
|
|
UpdateBinary(new_binary);
|
|
}
|
|
|
|
void AuxTraceRecord::DumpData(size_t indent) const {
|
|
PrintIndented(indent, "aux_size %" PRIu64 "\n", data->aux_size);
|
|
PrintIndented(indent, "offset %" PRIu64 "\n", data->offset);
|
|
PrintIndented(indent, "idx %u\n", data->idx);
|
|
PrintIndented(indent, "tid %u\n", data->tid);
|
|
PrintIndented(indent, "cpu %u\n", data->cpu);
|
|
PrintIndented(indent, "location.file_offset %" PRIu64 "\n", location.file_offset);
|
|
}
|
|
|
|
KernelSymbolRecord::KernelSymbolRecord(char* p) : Record(p) {
|
|
const char* end = p + size();
|
|
p += header_size();
|
|
MoveFromBinaryFormat(kallsyms_size, p);
|
|
kallsyms = p;
|
|
p += Align(kallsyms_size, 8);
|
|
CHECK_EQ(p, end);
|
|
}
|
|
|
|
void KernelSymbolRecord::DumpData(size_t indent) const {
|
|
PrintIndented(indent, "kallsyms: %s\n", std::string(kallsyms, kallsyms + kallsyms_size).c_str());
|
|
}
|
|
|
|
KernelSymbolRecord::KernelSymbolRecord(const std::string& kallsyms) {
|
|
SetTypeAndMisc(SIMPLE_PERF_RECORD_KERNEL_SYMBOL, 0);
|
|
kallsyms_size = kallsyms.size();
|
|
SetSize(header_size() + 4 + Align(kallsyms.size(), 8));
|
|
char* new_binary = new char[size()];
|
|
char* p = new_binary;
|
|
MoveToBinaryFormat(header, p);
|
|
MoveToBinaryFormat(kallsyms_size, p);
|
|
this->kallsyms = p;
|
|
memcpy(p, kallsyms.data(), kallsyms_size);
|
|
UpdateBinary(new_binary);
|
|
}
|
|
|
|
DsoRecord::DsoRecord(char* p) : Record(p) {
|
|
const char* end = p + size();
|
|
p += header_size();
|
|
MoveFromBinaryFormat(dso_type, p);
|
|
MoveFromBinaryFormat(dso_id, p);
|
|
MoveFromBinaryFormat(min_vaddr, p);
|
|
dso_name = p;
|
|
p += Align(strlen(dso_name) + 1, 8);
|
|
CHECK_EQ(p, end);
|
|
}
|
|
|
|
DsoRecord::DsoRecord(uint64_t dso_type, uint64_t dso_id, const std::string& dso_name,
|
|
uint64_t min_vaddr) {
|
|
SetTypeAndMisc(SIMPLE_PERF_RECORD_DSO, 0);
|
|
this->dso_type = dso_type;
|
|
this->dso_id = dso_id;
|
|
this->min_vaddr = min_vaddr;
|
|
SetSize(header_size() + 3 * sizeof(uint64_t) + Align(dso_name.size() + 1, 8));
|
|
char* new_binary = new char[size()];
|
|
char* p = new_binary;
|
|
MoveToBinaryFormat(header, p);
|
|
MoveToBinaryFormat(dso_type, p);
|
|
MoveToBinaryFormat(dso_id, p);
|
|
MoveToBinaryFormat(min_vaddr, p);
|
|
this->dso_name = p;
|
|
strcpy(p, dso_name.c_str());
|
|
UpdateBinary(new_binary);
|
|
}
|
|
|
|
void DsoRecord::DumpData(size_t indent) const {
|
|
PrintIndented(indent, "dso_type: %s(%" PRIu64 ")\n",
|
|
DsoTypeToString(static_cast<DsoType>(dso_type)), dso_type);
|
|
PrintIndented(indent, "dso_id: %" PRIu64 "\n", dso_id);
|
|
PrintIndented(indent, "min_vaddr: 0x%" PRIx64 "\n", min_vaddr);
|
|
PrintIndented(indent, "dso_name: %s\n", dso_name);
|
|
}
|
|
|
|
SymbolRecord::SymbolRecord(char* p) : Record(p) {
|
|
const char* end = p + size();
|
|
p += header_size();
|
|
MoveFromBinaryFormat(addr, p);
|
|
MoveFromBinaryFormat(len, p);
|
|
MoveFromBinaryFormat(dso_id, p);
|
|
name = p;
|
|
p += Align(strlen(name) + 1, 8);
|
|
CHECK_EQ(p, end);
|
|
}
|
|
|
|
SymbolRecord::SymbolRecord(uint64_t addr, uint64_t len, const std::string& name, uint64_t dso_id) {
|
|
SetTypeAndMisc(SIMPLE_PERF_RECORD_SYMBOL, 0);
|
|
this->addr = addr;
|
|
this->len = len;
|
|
this->dso_id = dso_id;
|
|
SetSize(header_size() + 3 * sizeof(uint64_t) + Align(name.size() + 1, 8));
|
|
char* new_binary = new char[size()];
|
|
char* p = new_binary;
|
|
MoveToBinaryFormat(header, p);
|
|
MoveToBinaryFormat(addr, p);
|
|
MoveToBinaryFormat(len, p);
|
|
MoveToBinaryFormat(dso_id, p);
|
|
this->name = p;
|
|
strcpy(p, name.c_str());
|
|
UpdateBinary(new_binary);
|
|
}
|
|
|
|
void SymbolRecord::DumpData(size_t indent) const {
|
|
PrintIndented(indent, "name: %s\n", name);
|
|
PrintIndented(indent, "addr: 0x%" PRIx64 "\n", addr);
|
|
PrintIndented(indent, "len: 0x%" PRIx64 "\n", len);
|
|
PrintIndented(indent, "dso_id: %" PRIu64 "\n", dso_id);
|
|
}
|
|
|
|
TracingDataRecord::TracingDataRecord(char* p) : Record(p) {
|
|
const char* end = p + size();
|
|
p += header_size();
|
|
MoveFromBinaryFormat(data_size, p);
|
|
data = p;
|
|
p += Align(data_size, 64);
|
|
CHECK_EQ(p, end);
|
|
}
|
|
|
|
TracingDataRecord::TracingDataRecord(const std::vector<char>& tracing_data) {
|
|
SetTypeAndMisc(SIMPLE_PERF_RECORD_TRACING_DATA, 0);
|
|
data_size = tracing_data.size();
|
|
SetSize(header_size() + sizeof(uint32_t) + Align(tracing_data.size(), 64));
|
|
char* new_binary = new char[size()];
|
|
char* p = new_binary;
|
|
MoveToBinaryFormat(header, p);
|
|
MoveToBinaryFormat(data_size, p);
|
|
data = p;
|
|
memcpy(p, tracing_data.data(), data_size);
|
|
UpdateBinary(new_binary);
|
|
}
|
|
|
|
void TracingDataRecord::DumpData(size_t indent) const {
|
|
Tracing tracing(std::vector<char>(data, data + data_size));
|
|
tracing.Dump(indent);
|
|
}
|
|
|
|
EventIdRecord::EventIdRecord(char* p) : Record(p) {
|
|
const char* end = p + size();
|
|
p += header_size();
|
|
MoveFromBinaryFormat(count, p);
|
|
data = reinterpret_cast<const EventIdData*>(p);
|
|
p += sizeof(data[0]) * count;
|
|
CHECK_EQ(p, end);
|
|
}
|
|
|
|
EventIdRecord::EventIdRecord(const std::vector<uint64_t>& data) {
|
|
SetTypeAndMisc(SIMPLE_PERF_RECORD_EVENT_ID, 0);
|
|
SetSize(header_size() + sizeof(uint64_t) * (1 + data.size()));
|
|
char* new_binary = new char[size()];
|
|
char* p = new_binary;
|
|
MoveToBinaryFormat(header, p);
|
|
count = data.size() / 2;
|
|
MoveToBinaryFormat(count, p);
|
|
this->data = reinterpret_cast<EventIdData*>(p);
|
|
memcpy(p, data.data(), sizeof(uint64_t) * data.size());
|
|
UpdateBinary(new_binary);
|
|
}
|
|
|
|
void EventIdRecord::DumpData(size_t indent) const {
|
|
PrintIndented(indent, "count: %" PRIu64 "\n", count);
|
|
for (size_t i = 0; i < count; ++i) {
|
|
PrintIndented(indent, "attr_id[%" PRIu64 "]: %" PRIu64 "\n", i, data[i].attr_id);
|
|
PrintIndented(indent, "event_id[%" PRIu64 "]: %" PRIu64 "\n", i, data[i].event_id);
|
|
}
|
|
}
|
|
|
|
CallChainRecord::CallChainRecord(char* p) : Record(p) {
|
|
const char* end = p + size();
|
|
p += header_size();
|
|
MoveFromBinaryFormat(pid, p);
|
|
MoveFromBinaryFormat(tid, p);
|
|
MoveFromBinaryFormat(chain_type, p);
|
|
MoveFromBinaryFormat(time, p);
|
|
MoveFromBinaryFormat(ip_nr, p);
|
|
ips = reinterpret_cast<uint64_t*>(p);
|
|
p += ip_nr * sizeof(uint64_t);
|
|
sps = reinterpret_cast<uint64_t*>(p);
|
|
p += ip_nr * sizeof(uint64_t);
|
|
CHECK_EQ(p, end);
|
|
}
|
|
|
|
CallChainRecord::CallChainRecord(pid_t pid, pid_t tid, CallChainJoiner::ChainType type,
|
|
uint64_t time, const std::vector<uint64_t>& ips,
|
|
const std::vector<uint64_t>& sps) {
|
|
CHECK_EQ(ips.size(), sps.size());
|
|
SetTypeAndMisc(SIMPLE_PERF_RECORD_CALLCHAIN, 0);
|
|
this->pid = pid;
|
|
this->tid = tid;
|
|
this->chain_type = static_cast<int>(type);
|
|
this->time = time;
|
|
this->ip_nr = ips.size();
|
|
SetSize(header_size() + (4 + ips.size() * 2) * sizeof(uint64_t));
|
|
char* new_binary = new char[size()];
|
|
char* p = new_binary;
|
|
MoveToBinaryFormat(header, p);
|
|
MoveToBinaryFormat(this->pid, p);
|
|
MoveToBinaryFormat(this->tid, p);
|
|
MoveToBinaryFormat(this->chain_type, p);
|
|
MoveToBinaryFormat(this->time, p);
|
|
MoveToBinaryFormat(this->ip_nr, p);
|
|
this->ips = reinterpret_cast<uint64_t*>(p);
|
|
MoveToBinaryFormat(ips.data(), ips.size(), p);
|
|
this->sps = reinterpret_cast<uint64_t*>(p);
|
|
MoveToBinaryFormat(sps.data(), sps.size(), p);
|
|
UpdateBinary(new_binary);
|
|
}
|
|
|
|
void CallChainRecord::DumpData(size_t indent) const {
|
|
const char* type_name = "";
|
|
switch (chain_type) {
|
|
case CallChainJoiner::ORIGINAL_OFFLINE:
|
|
type_name = "ORIGINAL_OFFLINE";
|
|
break;
|
|
case CallChainJoiner::ORIGINAL_REMOTE:
|
|
type_name = "ORIGINAL_REMOTE";
|
|
break;
|
|
case CallChainJoiner::JOINED_OFFLINE:
|
|
type_name = "JOINED_OFFLINE";
|
|
break;
|
|
case CallChainJoiner::JOINED_REMOTE:
|
|
type_name = "JOINED_REMOTE";
|
|
break;
|
|
}
|
|
PrintIndented(indent, "pid %u\n", pid);
|
|
PrintIndented(indent, "tid %u\n", tid);
|
|
PrintIndented(indent, "chain_type %s\n", type_name);
|
|
PrintIndented(indent, "time %" PRIu64 "\n", time);
|
|
PrintIndented(indent, "ip_nr %" PRIu64 "\n", ip_nr);
|
|
for (size_t i = 0; i < ip_nr; ++i) {
|
|
PrintIndented(indent + 1, "ip 0x%" PRIx64 ", sp 0x%" PRIx64 "\n", ips[i], sps[i]);
|
|
}
|
|
}
|
|
|
|
UnwindingResultRecord::UnwindingResultRecord(char* p) : Record(p) {
|
|
const char* end = p + size();
|
|
p += header_size();
|
|
MoveFromBinaryFormat(time, p);
|
|
MoveFromBinaryFormat(unwinding_result.used_time, p);
|
|
MoveFromBinaryFormat(unwinding_result.error_code, p);
|
|
MoveFromBinaryFormat(unwinding_result.error_addr, p);
|
|
MoveFromBinaryFormat(unwinding_result.stack_start, p);
|
|
MoveFromBinaryFormat(unwinding_result.stack_end, p);
|
|
|
|
// regs_user_data
|
|
MoveFromBinaryFormat(regs_user_data.abi, p);
|
|
MoveFromBinaryFormat(regs_user_data.reg_mask, p);
|
|
size_t bit_nr = __builtin_popcountll(regs_user_data.reg_mask);
|
|
regs_user_data.reg_nr = bit_nr;
|
|
regs_user_data.regs = reinterpret_cast<uint64_t*>(p);
|
|
p += bit_nr * sizeof(uint64_t);
|
|
|
|
// stack_user_data
|
|
MoveFromBinaryFormat(stack_user_data.size, p);
|
|
if (stack_user_data.size == 0) {
|
|
stack_user_data.dyn_size = 0;
|
|
} else {
|
|
stack_user_data.data = p;
|
|
p += stack_user_data.size;
|
|
MoveFromBinaryFormat(stack_user_data.dyn_size, p);
|
|
}
|
|
|
|
// callchain
|
|
if (p < end) {
|
|
MoveFromBinaryFormat(callchain.length, p);
|
|
callchain.ips = reinterpret_cast<uint64_t*>(p);
|
|
p += callchain.length * sizeof(uint64_t);
|
|
callchain.sps = reinterpret_cast<uint64_t*>(p);
|
|
p += callchain.length * sizeof(uint64_t);
|
|
}
|
|
CHECK_LE(p, end);
|
|
}
|
|
|
|
UnwindingResultRecord::UnwindingResultRecord(uint64_t time, const UnwindingResult& unwinding_result,
|
|
const PerfSampleRegsUserType& regs_user_data,
|
|
const PerfSampleStackUserType& stack_user_data,
|
|
const std::vector<uint64_t>& ips,
|
|
const std::vector<uint64_t>& sps) {
|
|
SetTypeAndMisc(SIMPLE_PERF_RECORD_UNWINDING_RESULT, 0);
|
|
uint32_t size = header_size() + 6 * sizeof(uint64_t);
|
|
size += (2 + regs_user_data.reg_nr) * sizeof(uint64_t);
|
|
size +=
|
|
stack_user_data.size == 0 ? sizeof(uint64_t) : (2 * sizeof(uint64_t) + stack_user_data.size);
|
|
CHECK_EQ(ips.size(), sps.size());
|
|
size += (1 + ips.size() * 2) * sizeof(uint64_t);
|
|
SetSize(size);
|
|
this->time = time;
|
|
this->unwinding_result = unwinding_result;
|
|
char* new_binary = new char[size];
|
|
char* p = new_binary;
|
|
MoveToBinaryFormat(header, p);
|
|
MoveToBinaryFormat(this->time, p);
|
|
MoveToBinaryFormat(unwinding_result.used_time, p);
|
|
MoveToBinaryFormat(unwinding_result.error_code, p);
|
|
MoveToBinaryFormat(unwinding_result.error_addr, p);
|
|
MoveToBinaryFormat(unwinding_result.stack_start, p);
|
|
MoveToBinaryFormat(unwinding_result.stack_end, p);
|
|
MoveToBinaryFormat(regs_user_data.abi, p);
|
|
MoveToBinaryFormat(regs_user_data.reg_mask, p);
|
|
if (regs_user_data.reg_nr > 0) {
|
|
MoveToBinaryFormat(regs_user_data.regs, regs_user_data.reg_nr, p);
|
|
}
|
|
MoveToBinaryFormat(stack_user_data.size, p);
|
|
if (stack_user_data.size > 0) {
|
|
MoveToBinaryFormat(stack_user_data.data, stack_user_data.size, p);
|
|
MoveToBinaryFormat(stack_user_data.dyn_size, p);
|
|
}
|
|
MoveToBinaryFormat(static_cast<uint64_t>(ips.size()), p);
|
|
MoveToBinaryFormat(ips.data(), ips.size(), p);
|
|
MoveToBinaryFormat(sps.data(), sps.size(), p);
|
|
CHECK_EQ(p, new_binary + size);
|
|
UpdateBinary(new_binary);
|
|
}
|
|
|
|
void UnwindingResultRecord::DumpData(size_t indent) const {
|
|
PrintIndented(indent, "time %" PRIu64 "\n", time);
|
|
PrintIndented(indent, "used_time %" PRIu64 "\n", unwinding_result.used_time);
|
|
PrintIndented(indent, "error_code %" PRIu64 "\n", unwinding_result.error_code);
|
|
PrintIndented(indent, "error_addr 0x%" PRIx64 "\n", unwinding_result.error_addr);
|
|
PrintIndented(indent, "stack_start 0x%" PRIx64 "\n", unwinding_result.stack_start);
|
|
PrintIndented(indent, "stack_end 0x%" PRIx64 "\n", unwinding_result.stack_end);
|
|
if (regs_user_data.reg_nr > 0) {
|
|
PrintIndented(indent, "user regs: abi=%" PRId64 "\n", regs_user_data.abi);
|
|
RegSet regs(regs_user_data.abi, regs_user_data.reg_mask, regs_user_data.regs);
|
|
for (size_t i = 0; i < 64; ++i) {
|
|
uint64_t value;
|
|
if (regs.GetRegValue(i, &value)) {
|
|
PrintIndented(indent + 1, "reg (%s) 0x%016" PRIx64 "\n", GetRegName(i, regs.arch).c_str(),
|
|
value);
|
|
}
|
|
}
|
|
}
|
|
if (stack_user_data.size > 0) {
|
|
PrintIndented(indent, "user stack: size %zu dyn_size %" PRIu64 "\n", stack_user_data.size,
|
|
stack_user_data.dyn_size);
|
|
const uint64_t* p = reinterpret_cast<const uint64_t*>(stack_user_data.data);
|
|
const uint64_t* end = p + (stack_user_data.size / sizeof(uint64_t));
|
|
while (p < end) {
|
|
PrintIndented(indent + 1, "");
|
|
for (size_t i = 0; i < 4 && p < end; ++i, ++p) {
|
|
printf(" %016" PRIx64, *p);
|
|
}
|
|
printf("\n");
|
|
}
|
|
printf("\n");
|
|
}
|
|
if (callchain.length > 0) {
|
|
PrintIndented(indent, "callchain length=%" PRIu64 ":\n", callchain.length);
|
|
for (uint64_t i = 0; i < callchain.length; i++) {
|
|
PrintIndented(indent + 1, "ip_%" PRIu64 ": 0x%" PRIx64 "\n", i + 1, callchain.ips[i]);
|
|
PrintIndented(indent + 1, "sp_%" PRIu64 ": 0x%" PRIx64 "\n", i + 1, callchain.sps[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
UnknownRecord::UnknownRecord(char* p) : Record(p) {
|
|
p += header_size();
|
|
data = p;
|
|
}
|
|
|
|
void UnknownRecord::DumpData(size_t) const {}
|
|
|
|
std::unique_ptr<Record> ReadRecordFromBuffer(const perf_event_attr& attr, uint32_t type, char* p) {
|
|
switch (type) {
|
|
case PERF_RECORD_MMAP:
|
|
return std::unique_ptr<Record>(new MmapRecord(attr, p));
|
|
case PERF_RECORD_MMAP2:
|
|
return std::unique_ptr<Record>(new Mmap2Record(attr, p));
|
|
case PERF_RECORD_COMM:
|
|
return std::unique_ptr<Record>(new CommRecord(attr, p));
|
|
case PERF_RECORD_EXIT:
|
|
return std::unique_ptr<Record>(new ExitRecord(attr, p));
|
|
case PERF_RECORD_FORK:
|
|
return std::unique_ptr<Record>(new ForkRecord(attr, p));
|
|
case PERF_RECORD_LOST:
|
|
return std::unique_ptr<Record>(new LostRecord(attr, p));
|
|
case PERF_RECORD_SAMPLE:
|
|
return std::unique_ptr<Record>(new SampleRecord(attr, p));
|
|
case PERF_RECORD_AUX:
|
|
return std::unique_ptr<Record>(new AuxRecord(attr, p));
|
|
case PERF_RECORD_TRACING_DATA:
|
|
return std::unique_ptr<Record>(new TracingDataRecord(p));
|
|
case PERF_RECORD_AUXTRACE_INFO:
|
|
return std::unique_ptr<Record>(new AuxTraceInfoRecord(p));
|
|
case PERF_RECORD_AUXTRACE:
|
|
return std::unique_ptr<Record>(new AuxTraceRecord(p));
|
|
case SIMPLE_PERF_RECORD_KERNEL_SYMBOL:
|
|
return std::unique_ptr<Record>(new KernelSymbolRecord(p));
|
|
case SIMPLE_PERF_RECORD_DSO:
|
|
return std::unique_ptr<Record>(new DsoRecord(p));
|
|
case SIMPLE_PERF_RECORD_SYMBOL:
|
|
return std::unique_ptr<Record>(new SymbolRecord(p));
|
|
case SIMPLE_PERF_RECORD_EVENT_ID:
|
|
return std::unique_ptr<Record>(new EventIdRecord(p));
|
|
case SIMPLE_PERF_RECORD_CALLCHAIN:
|
|
return std::unique_ptr<Record>(new CallChainRecord(p));
|
|
case SIMPLE_PERF_RECORD_UNWINDING_RESULT:
|
|
return std::unique_ptr<Record>(new UnwindingResultRecord(p));
|
|
case SIMPLE_PERF_RECORD_TRACING_DATA:
|
|
return std::unique_ptr<Record>(new TracingDataRecord(p));
|
|
default:
|
|
return std::unique_ptr<Record>(new UnknownRecord(p));
|
|
}
|
|
}
|
|
|
|
std::unique_ptr<Record> ReadRecordFromOwnedBuffer(const perf_event_attr& attr, uint32_t type,
|
|
char* p) {
|
|
std::unique_ptr<Record> record = ReadRecordFromBuffer(attr, type, p);
|
|
if (record != nullptr) {
|
|
record->OwnBinary();
|
|
} else {
|
|
delete[] p;
|
|
}
|
|
return record;
|
|
}
|
|
|
|
std::vector<std::unique_ptr<Record>> ReadRecordsFromBuffer(const perf_event_attr& attr, char* buf,
|
|
size_t buf_size) {
|
|
std::vector<std::unique_ptr<Record>> result;
|
|
char* p = buf;
|
|
char* end = buf + buf_size;
|
|
while (p < end) {
|
|
RecordHeader header(p);
|
|
CHECK_LE(p + header.size, end);
|
|
CHECK_NE(0u, header.size);
|
|
result.push_back(ReadRecordFromBuffer(attr, header.type, p));
|
|
p += header.size;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
std::unique_ptr<Record> ReadRecordFromBuffer(const perf_event_attr& attr, char* p) {
|
|
auto header = reinterpret_cast<const perf_event_header*>(p);
|
|
return ReadRecordFromBuffer(attr, header->type, p);
|
|
}
|
|
|
|
} // namespace simpleperf
|