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      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 #include "src/ftrace_reader/event_info_constants.h"
     18 
     19 namespace perfetto {
     20 
     21 Field MakeField(const char* name, uint32_t id, ProtoFieldType type) {
     22   Field field{};
     23   field.ftrace_name = name;
     24   field.proto_field_id = id;
     25   field.proto_field_type = type;
     26   return field;
     27 }
     28 
     29 std::vector<Field> GetStaticCommonFieldsInfo() {
     30   std::vector<Field> fields;
     31 
     32   fields.push_back(MakeField("common_pid", 2, kProtoInt32));
     33 
     34   return fields;
     35 }
     36 
     37 bool SetTranslationStrategy(FtraceFieldType ftrace,
     38                             ProtoFieldType proto,
     39                             TranslationStrategy* out) {
     40   if (ftrace == kFtraceCommonPid32 && proto == kProtoInt32) {
     41     *out = kCommonPid32ToInt32;
     42   } else if (ftrace == kFtraceInode32 && proto == kProtoUint64) {
     43     *out = kInode32ToUint64;
     44   } else if (ftrace == kFtraceInode64 && proto == kProtoUint64) {
     45     *out = kInode64ToUint64;
     46   } else if (ftrace == kFtracePid32 && proto == kProtoInt32) {
     47     *out = kPid32ToInt32;
     48   } else if (ftrace == kFtraceDevId32 && proto == kProtoUint64) {
     49     *out = kDevId32ToUint64;
     50   } else if (ftrace == kFtraceDevId64 && proto == kProtoUint64) {
     51     *out = kDevId64ToUint64;
     52   } else if (ftrace == kFtraceUint8 && proto == kProtoUint32) {
     53     *out = kUint8ToUint32;
     54   } else if (ftrace == kFtraceUint16 && proto == kProtoUint32) {
     55     *out = kUint16ToUint32;
     56   } else if (ftrace == kFtraceUint32 && proto == kProtoUint32) {
     57     *out = kUint32ToUint32;
     58   } else if (ftrace == kFtraceUint32 && proto == kProtoUint64) {
     59     *out = kUint32ToUint64;
     60   } else if (ftrace == kFtraceUint64 && proto == kProtoUint64) {
     61     *out = kUint64ToUint64;
     62   } else if (ftrace == kFtraceInt8 && proto == kProtoInt32) {
     63     *out = kInt8ToInt32;
     64   } else if (ftrace == kFtraceInt16 && proto == kProtoInt32) {
     65     *out = kInt16ToInt32;
     66   } else if (ftrace == kFtraceInt32 && proto == kProtoInt32) {
     67     *out = kInt32ToInt32;
     68   } else if (ftrace == kFtraceInt32 && proto == kProtoInt64) {
     69     *out = kInt32ToInt64;
     70   } else if (ftrace == kFtraceInt64 && proto == kProtoInt64) {
     71     *out = kInt64ToInt64;
     72   } else if (ftrace == kFtraceFixedCString && proto == kProtoString) {
     73     *out = kFixedCStringToString;
     74   } else if (ftrace == kFtraceCString && proto == kProtoString) {
     75     *out = kCStringToString;
     76   } else if (ftrace == kFtraceStringPtr && proto == kProtoString) {
     77     *out = kStringPtrToString;
     78   } else if (ftrace == kFtraceBool && proto == kProtoUint32) {
     79     *out = kBoolToUint32;
     80   } else {
     81     PERFETTO_DLOG("No translation strategy for '%s' -> '%s'", ToString(ftrace),
     82                   ToString(proto));
     83     return false;
     84   }
     85   return true;
     86 }
     87 
     88 }  // namespace perfetto
     89