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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/traced/probes/ftrace/event_info_constants.h"
     18 
     19 namespace perfetto {
     20 using protozero::proto_utils::ProtoSchemaType;
     21 
     22 Field MakeField(const char* name, uint32_t id, ProtoSchemaType type) {
     23   Field field{};
     24   field.ftrace_name = name;
     25   field.proto_field_id = id;
     26   field.proto_field_type = type;
     27   return field;
     28 }
     29 
     30 std::vector<Field> GetStaticCommonFieldsInfo() {
     31   std::vector<Field> fields;
     32 
     33   fields.push_back(MakeField("common_pid", 2, ProtoSchemaType::kInt32));
     34 
     35   return fields;
     36 }
     37 
     38 bool SetTranslationStrategy(FtraceFieldType ftrace,
     39                             ProtoSchemaType proto,
     40                             TranslationStrategy* out) {
     41   if (ftrace == kFtraceCommonPid32 && proto == ProtoSchemaType::kInt32) {
     42     *out = kCommonPid32ToInt32;
     43   } else if (ftrace == kFtraceCommonPid32 && proto == ProtoSchemaType::kInt64) {
     44     *out = kCommonPid32ToInt64;
     45   } else if (ftrace == kFtraceInode32 && proto == ProtoSchemaType::kUint64) {
     46     *out = kInode32ToUint64;
     47   } else if (ftrace == kFtraceInode64 && proto == ProtoSchemaType::kUint64) {
     48     *out = kInode64ToUint64;
     49   } else if (ftrace == kFtracePid32 && proto == ProtoSchemaType::kInt32) {
     50     *out = kPid32ToInt32;
     51   } else if (ftrace == kFtracePid32 && proto == ProtoSchemaType::kInt64) {
     52     *out = kPid32ToInt64;
     53   } else if (ftrace == kFtraceDevId32 && proto == ProtoSchemaType::kUint64) {
     54     *out = kDevId32ToUint64;
     55   } else if (ftrace == kFtraceDevId64 && proto == ProtoSchemaType::kUint64) {
     56     *out = kDevId64ToUint64;
     57   } else if (ftrace == kFtraceUint8 && proto == ProtoSchemaType::kUint32) {
     58     *out = kUint8ToUint32;
     59   } else if (ftrace == kFtraceUint8 && proto == ProtoSchemaType::kUint64) {
     60     *out = kUint8ToUint64;
     61   } else if (ftrace == kFtraceUint16 && proto == ProtoSchemaType::kUint32) {
     62     *out = kUint16ToUint32;
     63   } else if (ftrace == kFtraceUint16 && proto == ProtoSchemaType::kUint64) {
     64     *out = kUint16ToUint64;
     65   } else if (ftrace == kFtraceUint32 && proto == ProtoSchemaType::kUint32) {
     66     *out = kUint32ToUint32;
     67   } else if (ftrace == kFtraceUint32 && proto == ProtoSchemaType::kUint64) {
     68     *out = kUint32ToUint64;
     69   } else if (ftrace == kFtraceUint64 && proto == ProtoSchemaType::kUint64) {
     70     *out = kUint64ToUint64;
     71   } else if (ftrace == kFtraceInt8 && proto == ProtoSchemaType::kInt32) {
     72     *out = kInt8ToInt32;
     73   } else if (ftrace == kFtraceInt8 && proto == ProtoSchemaType::kInt64) {
     74     *out = kInt8ToInt64;
     75   } else if (ftrace == kFtraceInt16 && proto == ProtoSchemaType::kInt32) {
     76     *out = kInt16ToInt32;
     77   } else if (ftrace == kFtraceInt16 && proto == ProtoSchemaType::kInt64) {
     78     *out = kInt16ToInt64;
     79   } else if (ftrace == kFtraceInt32 && proto == ProtoSchemaType::kInt32) {
     80     *out = kInt32ToInt32;
     81   } else if (ftrace == kFtraceInt32 && proto == ProtoSchemaType::kInt64) {
     82     *out = kInt32ToInt64;
     83   } else if (ftrace == kFtraceInt64 && proto == ProtoSchemaType::kInt64) {
     84     *out = kInt64ToInt64;
     85   } else if (ftrace == kFtraceFixedCString &&
     86              proto == ProtoSchemaType::kString) {
     87     *out = kFixedCStringToString;
     88   } else if (ftrace == kFtraceCString && proto == ProtoSchemaType::kString) {
     89     *out = kCStringToString;
     90   } else if (ftrace == kFtraceStringPtr && proto == ProtoSchemaType::kString) {
     91     *out = kStringPtrToString;
     92   } else if (ftrace == kFtraceBool && proto == ProtoSchemaType::kUint32) {
     93     *out = kBoolToUint32;
     94   } else if (ftrace == kFtraceBool && proto == ProtoSchemaType::kUint64) {
     95     *out = kBoolToUint64;
     96   } else if (ftrace == kFtraceDataLoc && proto == ProtoSchemaType::kString) {
     97     *out = kDataLocToString;
     98   } else {
     99     PERFETTO_DLOG("No translation strategy for '%s' -> '%s'", ToString(ftrace),
    100                   ProtoSchemaToString(proto));
    101     return false;
    102   }
    103   return true;
    104 }
    105 
    106 }  // namespace perfetto
    107