You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
128 lines
3.5 KiB
128 lines
3.5 KiB
/*
|
|
* Copyright (C) 2016 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef SIMPLE_PERF_TRACING_H_
|
|
#define SIMPLE_PERF_TRACING_H_
|
|
|
|
#include <optional>
|
|
#include <set>
|
|
#include <vector>
|
|
|
|
#include <android-base/logging.h>
|
|
|
|
#include "event_type.h"
|
|
#include "utils.h"
|
|
|
|
namespace simpleperf {
|
|
|
|
struct TracingField {
|
|
std::string name;
|
|
size_t offset = 0;
|
|
size_t elem_size = 0;
|
|
size_t elem_count = 1;
|
|
bool is_signed = false;
|
|
bool is_dynamic = false;
|
|
|
|
bool operator==(const TracingField& other) const {
|
|
return name == other.name && offset == other.offset && elem_size == other.elem_size &&
|
|
elem_count == other.elem_count && is_signed == other.is_signed &&
|
|
is_dynamic == other.is_dynamic;
|
|
}
|
|
};
|
|
|
|
struct TracingFieldPlace {
|
|
uint32_t offset;
|
|
uint32_t size;
|
|
|
|
uint64_t ReadFromData(const char* raw_data) {
|
|
return ConvertBytesToValue(raw_data + offset, size);
|
|
}
|
|
};
|
|
|
|
struct StringTracingFieldPlace {
|
|
uint32_t offset;
|
|
uint32_t size;
|
|
|
|
std::string ReadFromData(const char* raw_data) {
|
|
char s[size + 1];
|
|
s[size] = '\0';
|
|
memcpy(s, raw_data + offset, size);
|
|
return s;
|
|
}
|
|
};
|
|
|
|
struct TracingFormat {
|
|
std::string system_name;
|
|
std::string name;
|
|
uint64_t id;
|
|
std::vector<TracingField> fields;
|
|
|
|
void GetField(const std::string& name, TracingFieldPlace& place) {
|
|
const TracingField& field = GetField(name);
|
|
place.offset = field.offset;
|
|
place.size = field.elem_size;
|
|
}
|
|
|
|
void GetField(const std::string& name, StringTracingFieldPlace& place) {
|
|
const TracingField& field = GetField(name);
|
|
place.offset = field.offset;
|
|
place.size = field.elem_count;
|
|
}
|
|
|
|
private:
|
|
const TracingField& GetField(const std::string& name) {
|
|
for (const auto& field : fields) {
|
|
if (field.name == name) {
|
|
return field;
|
|
}
|
|
}
|
|
LOG(FATAL) << "Couldn't find field " << name << "in TracingFormat of " << this->name;
|
|
return fields[0];
|
|
}
|
|
};
|
|
|
|
class TracingFile;
|
|
|
|
class Tracing {
|
|
public:
|
|
explicit Tracing(const std::vector<char>& data);
|
|
~Tracing();
|
|
void Dump(size_t indent);
|
|
TracingFormat GetTracingFormatHavingId(uint64_t trace_event_id);
|
|
std::string GetTracingEventNameHavingId(uint64_t trace_event_id);
|
|
const std::string& GetKallsyms() const;
|
|
uint32_t GetPageSize() const;
|
|
|
|
private:
|
|
TracingFile* tracing_file_;
|
|
std::vector<TracingFormat> tracing_formats_;
|
|
};
|
|
|
|
bool GetTracingData(const std::vector<const EventType*>& event_types, std::vector<char>* data);
|
|
|
|
// use_quote: whether or not to use quotes in string operands
|
|
// used_fields: field names used in the filter
|
|
// Return adjusted filter on success, otherwise return std::nullopt.
|
|
using FieldNameSet = std::set<std::string>;
|
|
std::optional<std::string> AdjustTracepointFilter(const std::string& filter, bool use_quote,
|
|
FieldNameSet* used_fields);
|
|
std::optional<FieldNameSet> GetFieldNamesForTracepointEvent(const EventType& event);
|
|
TracingFormat ParseTracingFormat(const std::string& data);
|
|
|
|
} // namespace simpleperf
|
|
|
|
#endif // SIMPLE_PERF_TRACING_H_
|