1 /* 2 * Copyright (C) 2020 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef SRC_TRACE_PROCESSOR_IMPORTERS_PROTO_PROFILE_PACKET_UTILS_H_ 18 #define SRC_TRACE_PROCESSOR_IMPORTERS_PROTO_PROFILE_PACKET_UTILS_H_ 19 #include <optional> 20 21 #include "perfetto/ext/base/string_view.h" 22 #include "src/trace_processor/importers/proto/profile_packet_sequence_state.h" 23 24 #include "protos/perfetto/trace/interned_data/interned_data.pbzero.h" 25 #include "protos/perfetto/trace/profiling/profile_common.pbzero.h" 26 #include "protos/perfetto/trace/profiling/profile_packet.pbzero.h" 27 28 namespace perfetto { 29 namespace trace_processor { 30 31 class ProfilePacketUtils { 32 public: 33 static std::string MakeMappingName( 34 const std::vector<base::StringView>& path_components); 35 MakeSourceMapping(const protos::pbzero::Mapping::Decoder & entry)36 static ProfilePacketSequenceState::SourceMapping MakeSourceMapping( 37 const protos::pbzero::Mapping::Decoder& entry) { 38 ProfilePacketSequenceState::SourceMapping src_mapping{}; 39 src_mapping.build_id = entry.build_id(); 40 src_mapping.exact_offset = entry.exact_offset(); 41 src_mapping.start_offset = entry.start_offset(); 42 src_mapping.start = entry.start(); 43 src_mapping.end = entry.end(); 44 src_mapping.load_bias = entry.load_bias(); 45 for (auto path_string_id_it = entry.path_string_ids(); path_string_id_it; 46 ++path_string_id_it) { 47 src_mapping.name_ids.emplace_back(*path_string_id_it); 48 } 49 return src_mapping; 50 } 51 MakeSourceFrame(const protos::pbzero::Frame::Decoder & entry)52 static ProfilePacketSequenceState::SourceFrame MakeSourceFrame( 53 const protos::pbzero::Frame::Decoder& entry) { 54 ProfilePacketSequenceState::SourceFrame src_frame; 55 src_frame.name_id = entry.function_name_id(); 56 src_frame.mapping_id = entry.mapping_id(); 57 src_frame.rel_pc = entry.rel_pc(); 58 return src_frame; 59 } 60 MakeSourceCallstack(const protos::pbzero::Callstack::Decoder & entry)61 static ProfilePacketSequenceState::SourceCallstack MakeSourceCallstack( 62 const protos::pbzero::Callstack::Decoder& entry) { 63 ProfilePacketSequenceState::SourceCallstack src_callstack; 64 for (auto frame_it = entry.frame_ids(); frame_it; ++frame_it) 65 src_callstack.emplace_back(*frame_it); 66 return src_callstack; 67 } 68 StringifyCpuMode(protos::pbzero::Profiling::CpuMode cpu_mode)69 static const char* StringifyCpuMode( 70 protos::pbzero::Profiling::CpuMode cpu_mode) { 71 using protos::pbzero::Profiling; 72 switch (cpu_mode) { 73 case Profiling::MODE_UNKNOWN: 74 return "unknown"; 75 case Profiling::MODE_KERNEL: 76 return "kernel"; 77 case Profiling::MODE_USER: 78 return "user"; 79 case Profiling::MODE_HYPERVISOR: 80 return "hypervisor"; 81 case Profiling::MODE_GUEST_KERNEL: 82 return "guest_kernel"; 83 case Profiling::MODE_GUEST_USER: 84 return "guest_user"; 85 } 86 return "unknown"; // switch should be complete, but gcc needs a hint 87 } 88 StringifyStackUnwindError(protos::pbzero::Profiling::StackUnwindError unwind_error)89 static const char* StringifyStackUnwindError( 90 protos::pbzero::Profiling::StackUnwindError unwind_error) { 91 using protos::pbzero::Profiling; 92 switch (unwind_error) { 93 case Profiling::UNWIND_ERROR_UNKNOWN: 94 return "unknown"; 95 case Profiling::UNWIND_ERROR_NONE: 96 return "none"; // should never see this serialized by traced_perf, the 97 // field should be unset instead 98 case Profiling::UNWIND_ERROR_MEMORY_INVALID: 99 return "memory_invalid"; 100 case Profiling::UNWIND_ERROR_UNWIND_INFO: 101 return "unwind_info"; 102 case Profiling::UNWIND_ERROR_UNSUPPORTED: 103 return "unsupported"; 104 case Profiling::UNWIND_ERROR_INVALID_MAP: 105 return "invalid_map"; 106 case Profiling::UNWIND_ERROR_MAX_FRAMES_EXCEEDED: 107 return "max_frames_exceeded"; 108 case Profiling::UNWIND_ERROR_REPEATED_FRAME: 109 return "repeated_frame"; 110 case Profiling::UNWIND_ERROR_INVALID_ELF: 111 return "invalid_elf"; 112 case Profiling::UNWIND_ERROR_SYSTEM_CALL: 113 return "system_call"; 114 case Profiling::UNWIND_ERROR_THREAD_TIMEOUT: 115 return "thread_timeout"; 116 case Profiling::UNWIND_ERROR_THREAD_DOES_NOT_EXIST: 117 return "thread_does_not_exist"; 118 case Profiling::UNWIND_ERROR_BAD_ARCH: 119 return "bad_arch"; 120 case Profiling::UNWIND_ERROR_MAPS_PARSE: 121 return "maps_parse"; 122 case Profiling::UNWIND_ERROR_INVALID_PARAMETER: 123 return "invalid_parameter"; 124 case Profiling::UNWIND_ERROR_PTRACE_CALL: 125 return "ptrace_call"; 126 } 127 return "unknown"; // switch should be complete, but gcc needs a hint 128 } 129 }; 130 131 } // namespace trace_processor 132 } // namespace perfetto 133 134 #endif // SRC_TRACE_PROCESSOR_IMPORTERS_PROTO_PROFILE_PACKET_UTILS_H_ 135