1 /* 2 * Copyright (C) 2018 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_TOOLS_FTRACE_PROTO_GEN_PROTO_GEN_UTILS_H_ 18 #define SRC_TOOLS_FTRACE_PROTO_GEN_PROTO_GEN_UTILS_H_ 19 20 #include <map> 21 #include <set> 22 #include <sstream> 23 #include <string> 24 #include <vector> 25 26 #include <google/protobuf/descriptor.h> 27 28 #include "src/traced/probes/ftrace/format_parser/format_parser.h" 29 30 namespace perfetto { 31 32 class VerifyStream : public std::ostringstream { 33 public: 34 VerifyStream(std::string filename); 35 ~VerifyStream() override; 36 37 private: 38 std::string filename_; 39 std::string expected_; 40 }; 41 42 class FtraceEventName { 43 public: 44 explicit FtraceEventName(const std::string& full_name); 45 46 bool valid() const; 47 const std::string& name() const; 48 const std::string& group() const; 49 50 private: 51 bool valid_; 52 std::string name_; 53 std::string group_; 54 }; 55 56 struct ProtoType { 57 enum Type { INVALID, NUMERIC, STRING }; 58 Type type; 59 uint16_t size; 60 bool is_signed; 61 bool is_repeated; 62 63 ProtoType GetSigned() const; 64 std::string ToString() const; 65 66 static ProtoType Invalid(); 67 static ProtoType String(bool is_repeated = false); 68 static ProtoType Numeric(uint16_t size, 69 bool is_signed, 70 bool is_repeated = false); 71 static ProtoType FromDescriptor(google::protobuf::FieldDescriptor::Type type, 72 bool is_repeated = false); 73 }; 74 75 struct Proto { 76 Proto() = default; 77 Proto(std::string evt_name, const google::protobuf::Descriptor& desc); 78 struct Field { 79 ProtoType type; 80 std::string name; 81 uint32_t number; 82 }; 83 std::string name; 84 std::string event_name; 85 std::map<std::string, Field> fields; 86 87 std::string ToString(); 88 void UnionFields(const std::vector<Proto::Field>& candidate_fields); 89 void AddField(Proto::Field field); 90 std::vector<const Field*> SortedFields(); 91 uint32_t max_id = 0; 92 }; 93 94 std::string ToCamelCase(const std::string& s); 95 ProtoType GetCommon(ProtoType one, ProtoType other); 96 std::string ProtoHeader(); 97 ProtoType InferProtoType(const FtraceEvent::Field& field); 98 99 } // namespace perfetto 100 101 #endif // SRC_TOOLS_FTRACE_PROTO_GEN_PROTO_GEN_UTILS_H_ 102