17e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh// Copyright (c) 2012 The Chromium OS Authors. All rights reserved. 27e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh// Use of this source code is governed by a BSD-style license that can be 37e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh// found in the LICENSE file. 47e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 57e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh#ifndef CHROMIUMOS_WIDE_PROFILING_PERF_READER_H_ 67e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh#define CHROMIUMOS_WIDE_PROFILING_PERF_READER_H_ 77e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 87e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh#include <stdint.h> 97e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 107e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh#include <map> 117e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh#include <set> 127e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh#include <string> 137e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh#include <type_traits> 147e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh#include <vector> 157e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 167e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh#include "base/macros.h" 177e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 187e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh#include "perf_internals.h" 197e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh#include "quipper_string.h" 207e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh#include "perf_utils.h" 217e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 227e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntoshnamespace quipper { 237e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 247e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntoshstruct PerfFileAttr { 257e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh struct perf_event_attr attr; 267e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh std::vector<u64> ids; 277e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh}; 287e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 297e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh// Based on code in tools/perf/util/header.c, the metadata are of the following 307e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh// formats: 317e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 327e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh// Based on kernel/perf_internals.h 337e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntoshconst size_t kBuildIDArraySize = 20; 347e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntoshconst size_t kBuildIDStringLength = kBuildIDArraySize * 2; 357e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 367e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntoshstruct CStringWithLength { 377e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh u32 len; 387e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh string str; 397e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh}; 407e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 417e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntoshstruct PerfStringMetadata { 427e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh u32 type; 437e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh std::vector<CStringWithLength> data; 447e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh}; 457e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 467e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntoshstruct PerfUint32Metadata { 477e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh u32 type; 487e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh std::vector<uint32_t> data; 497e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh}; 507e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 517e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntoshstruct PerfUint64Metadata { 527e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh u32 type; 537e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh std::vector<uint64_t> data; 547e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh}; 557e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 567e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntoshtypedef u32 num_siblings_type; 577e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 587e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntoshstruct PerfCPUTopologyMetadata { 597e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh std::vector<CStringWithLength> core_siblings; 607e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh std::vector<CStringWithLength> thread_siblings; 617e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh}; 627e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 637e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntoshstruct PerfNodeTopologyMetadata { 647e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh u32 id; 657e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh u64 total_memory; 667e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh u64 free_memory; 677e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh CStringWithLength cpu_list; 687e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh}; 697e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 707e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntoshstruct BufferWithSize; 717e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntoshstruct ConstBufferWithSize; 727e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 737e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntoshclass PerfReader { 747e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh public: 757e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh PerfReader() : sample_type_(0), 767e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh read_format_(0), 777e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh is_cross_endian_(0) {} 787e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh ~PerfReader(); 797e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 807e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // Makes |build_id| fit the perf format, by either truncating it or adding 817e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // zeros to the end so that it has length kBuildIDStringLength. 827e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh static void PerfizeBuildIDString(string* build_id); 837e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 847e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // Changes |build_id| to the best guess of what the build id was before going 857e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // through perf. Specifically, it keeps removing trailing sequences of four 867e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // zero bytes (or eight '0' characters) until there are no more such 877e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // sequences, or the build id would be empty if the process were repeated. 887e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh static void UnperfizeBuildIDString(string* build_id); 897e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 907e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool ReadFile(const string& filename); 917e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool ReadFromVector(const std::vector<char>& data); 927e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool ReadFromString(const string& str); 937e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool ReadFromPointer(const char* perf_data, size_t size); 947e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 957e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // TODO(rohinmshah): GetSize should not use RegenerateHeader (so that it can 967e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // be const). Ideally, RegenerateHeader would be deleted and instead of 977e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // having out_header_ as an instance variable, it would be computed 987e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // dynamically whenever needed. 997e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 1007e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // Returns the size in bytes that would be written by any of the methods that 1017e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // write the entire perf data file (WriteFile, WriteToPointer, etc). 1027e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh size_t GetSize(); 1037e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 1047e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool WriteFile(const string& filename); 1057e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool WriteToVector(std::vector<char>* data); 1067e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool WriteToString(string* str); 1077e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool WriteToPointer(char* buffer, size_t size); 1087e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 1097e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool RegenerateHeader(); 1107e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 1117e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // Stores the mapping from filenames to build ids in build_id_events_. 1127e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // Returns true on success. 1137e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // Note: If |filenames_to_build_ids| contains a mapping for a filename for 1147e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // which there is already a build_id_event in build_id_events_, a duplicate 1157e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // build_id_event will be created, and the old build_id_event will NOT be 1167e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // deleted. 1177e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool InjectBuildIDs(const std::map<string, string>& filenames_to_build_ids); 1187e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 1197e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // Replaces existing filenames with filenames from |build_ids_to_filenames| 1207e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // by joining on build ids. If a build id in |build_ids_to_filenames| is not 1217e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // present in this parser, it is ignored. 1227e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool Localize(const std::map<string, string>& build_ids_to_filenames); 1237e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 1247e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // Same as Localize, but joins on filenames instead of build ids. 1257e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool LocalizeUsingFilenames(const std::map<string, string>& filename_map); 1267e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 1277e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // Stores a list of unique filenames found in MMAP/MMAP2 events into 1287e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // |filenames|. Any existing data in |filenames| will be lost. 1297e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh void GetFilenames(std::vector<string>* filenames) const; 1307e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh void GetFilenamesAsSet(std::set<string>* filenames) const; 1317e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 1327e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // Uses build id events to populate |filenames_to_build_ids|. 1337e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // Any existing data in |filenames_to_build_ids| will be lost. 1347e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // Note: A filename returned by GetFilenames need not be present in this map, 1357e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // since there may be no build id event corresponding to the MMAP/MMAP2. 1367e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh void GetFilenamesToBuildIDs( 1377e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh std::map<string, string>* filenames_to_build_ids) const; 1387e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 1397e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh static bool IsSupportedEventType(uint32_t type); 1407e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 1417e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // If a program using PerfReader calls events(), it could work with the 1427e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // resulting events by importing kernel/perf_internals.h. This would also 1437e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // apply to other forms of data (attributes, event types, build ids, etc.) 1447e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // However, there is no easy way to work with the sample info within events. 1457e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // The following two methods have been added for this purpose. 1467e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 1477e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // Extracts from a perf event |event| info about the perf sample that 1487e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // contains the event. Stores info in |sample|. 1497e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool ReadPerfSampleInfo(const event_t& event, 1507e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh struct perf_sample* sample) const; 1517e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // Writes |sample| info back to a perf event |event|. 1527e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool WritePerfSampleInfo(const perf_sample& sample, 1537e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh event_t* event) const; 1547e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 1557e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // Accessor funcs. 1567e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh const std::vector<PerfFileAttr>& attrs() const { 1577e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh return attrs_; 1587e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh } 1597e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 1607e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh const std::vector<malloced_unique_ptr<event_t>>& events() const { 1617e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh return events_; 1627e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh } 1637e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 1647e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh const std::vector<perf_trace_event_type>& event_types() const { 1657e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh return event_types_; 1667e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh } 1677e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 1687e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh const std::vector<build_id_event*>& build_id_events() const { 1697e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh return build_id_events_; 1707e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh } 1717e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 1727e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh const std::vector<char>& tracing_data() const { 1737e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh return tracing_data_; 1747e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh } 1757e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 1767e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh protected: 1777e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool ReadHeader(const ConstBufferWithSize& data); 1787e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 1797e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool ReadAttrs(const ConstBufferWithSize& data); 1807e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool ReadAttr(const ConstBufferWithSize& data, size_t* offset); 1817e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool ReadEventAttr(const ConstBufferWithSize& data, size_t* offset, 1827e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh perf_event_attr* attr); 1837e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool ReadUniqueIDs(const ConstBufferWithSize& data, size_t num_ids, 1847e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh size_t* offset, std::vector<u64>* ids); 1857e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 1867e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool ReadEventTypes(const ConstBufferWithSize& data); 1877e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool ReadEventType(const ConstBufferWithSize& data, size_t* offset); 1887e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 1897e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool ReadData(const ConstBufferWithSize& data); 1907e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 1917e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // Reads metadata in normal mode. 1927e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool ReadMetadata(const ConstBufferWithSize& data); 1937e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool ReadTracingMetadata(const ConstBufferWithSize& data, 1947e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh size_t offset, size_t size); 1957e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool ReadBuildIDMetadata(const ConstBufferWithSize& data, u32 type, 1967e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh size_t offset, size_t size); 1977e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool ReadStringMetadata(const ConstBufferWithSize& data, u32 type, 1987e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh size_t offset, size_t size); 1997e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool ReadUint32Metadata(const ConstBufferWithSize& data, u32 type, 2007e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh size_t offset, size_t size); 2017e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool ReadUint64Metadata(const ConstBufferWithSize& data, u32 type, 2027e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh size_t offset, size_t size); 2037e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool ReadCPUTopologyMetadata(const ConstBufferWithSize& data, u32 type, 2047e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh size_t offset, size_t size); 2057e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool ReadNUMATopologyMetadata(const ConstBufferWithSize& data, u32 type, 2067e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh size_t offset, size_t size); 2077e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 2087e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // Read perf data from piped perf output data. 2097e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool ReadPipedData(const ConstBufferWithSize& data); 2107e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool ReadTracingMetadataEvent(const ConstBufferWithSize& data, size_t offset); 2117e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 2127e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // Like WriteToPointer, but does not check if the buffer is large enough. 2137e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool WriteToPointerWithoutCheckingSize(char* buffer, size_t size); 2147e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 2157e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool WriteHeader(const BufferWithSize& data) const; 2167e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool WriteAttrs(const BufferWithSize& data) const; 2177e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool WriteEventTypes(const BufferWithSize& data) const; 2187e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool WriteData(const BufferWithSize& data) const; 2197e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool WriteMetadata(const BufferWithSize& data) const; 2207e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 2217e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // For writing the various types of metadata. 2227e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool WriteBuildIDMetadata(u32 type, size_t* offset, 2237e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh const BufferWithSize& data) const; 2247e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool WriteStringMetadata(u32 type, size_t* offset, 2257e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh const BufferWithSize& data) const; 2267e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool WriteUint32Metadata(u32 type, size_t* offset, 2277e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh const BufferWithSize& data) const; 2287e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool WriteUint64Metadata(u32 type, size_t* offset, 2297e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh const BufferWithSize& data) const; 2307e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool WriteEventDescMetadata(u32 type, size_t* offset, 2317e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh const BufferWithSize& data) const; 2327e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool WriteCPUTopologyMetadata(u32 type, size_t* offset, 2337e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh const BufferWithSize& data) const; 2347e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool WriteNUMATopologyMetadata(u32 type, size_t* offset, 2357e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh const BufferWithSize& data) const; 2367e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 2377e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // For reading event blocks within piped perf data. 2387e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool ReadAttrEventBlock(const ConstBufferWithSize& data, size_t offset, 2397e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh size_t size); 2407e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool ReadPerfEventBlock(const event_t& event); 2417e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 2427e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // Returns the number of types of metadata stored. 2437e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh size_t GetNumMetadata() const; 2447e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 2457e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // For computing the sizes of the various types of metadata. 2467e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh size_t GetBuildIDMetadataSize() const; 2477e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh size_t GetStringMetadataSize() const; 2487e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh size_t GetUint32MetadataSize() const; 2497e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh size_t GetUint64MetadataSize() const; 2507e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh size_t GetEventDescMetadataSize() const; 2517e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh size_t GetCPUTopologyMetadataSize() const; 2527e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh size_t GetNUMATopologyMetadataSize() const; 2537e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 2547e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // Returns true if we should write the number of strings for the string 2557e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // metadata of type |type|. 2567e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool NeedsNumberOfStringData(u32 type) const; 2577e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 2587e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // Replaces existing filenames in MMAP/MMAP2 events based on |filename_map|. 2597e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // This method does not change |build_id_events_|. 2607e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool LocalizeMMapFilenames(const std::map<string, string>& filename_map); 2617e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 2627e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh std::vector<PerfFileAttr> attrs_; 2637e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh std::vector<perf_trace_event_type> event_types_; 2647e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh std::vector<malloced_unique_ptr<event_t>> events_; 2657e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh std::vector<build_id_event*> build_id_events_; 2667e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh std::vector<PerfStringMetadata> string_metadata_; 2677e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh std::vector<PerfUint32Metadata> uint32_metadata_; 2687e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh std::vector<PerfUint64Metadata> uint64_metadata_; 2697e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh PerfCPUTopologyMetadata cpu_topology_; 2707e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh std::vector<PerfNodeTopologyMetadata> numa_topology_; 2717e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh std::vector<char> tracing_data_; 2727e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh uint64_t sample_type_; 2737e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh uint64_t read_format_; 2747e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh uint64_t metadata_mask_; 2757e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 2767e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // Indicates that the perf data being read is from machine with a different 2777e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // endianness than the current machine. 2787e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh bool is_cross_endian_; 2797e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 2807e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh private: 2817e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh u32 ReadPerfEventAttrSize(const ConstBufferWithSize& data, 2827e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh size_t attr_offset); 2837e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 2847e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh // The file header is either a normal header or a piped header. 2857e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh union { 2867e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh struct perf_file_header header_; 2877e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh struct perf_pipe_file_header piped_header_; 2887e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh }; 2897e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh struct perf_file_header out_header_; 2907e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 2917e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh DISALLOW_COPY_AND_ASSIGN(PerfReader); 2927e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh}; 2937e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 2947e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh} // namespace quipper 2957e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh 2967e2f4e9d384d501cf86118ebac4b8de2b86eac53Than McIntosh#endif // CHROMIUMOS_WIDE_PROFILING_PERF_READER_H_ 297