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/*
* Copyright (C) 2020 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.
*/
#pragma once
#include <inttypes.h>
#include <string>
#include <string_view>
#include <unordered_map>
#include <vector>
#include "dso.h"
#include "thread_tree.h"
namespace simpleperf {
enum class CallChainExecutionType {
NATIVE_METHOD,
INTERPRETED_JVM_METHOD,
JIT_JVM_METHOD,
// ART methods near interpreted/JIT JVM methods. They're shown only when RemoveArtFrame = false.
ART_METHOD,
};
struct CallChainReportEntry {
uint64_t ip = 0;
const Symbol* symbol = nullptr;
Dso* dso = nullptr;
const char* dso_name = nullptr;
uint64_t vaddr_in_file = 0;
const MapEntry* map = nullptr;
CallChainExecutionType execution_type = CallChainExecutionType::NATIVE_METHOD;
};
class CallChainReportBuilder {
public:
CallChainReportBuilder(ThreadTree& thread_tree) : thread_tree_(thread_tree) {}
// If true, remove interpreter frames both before and after a Java frame.
// Default is true.
void SetRemoveArtFrame(bool enable) { remove_art_frame_ = enable; }
// If true, convert a JIT method into its corresponding interpreted Java method. So they can be
// merged in reports like flamegraph. Default is true.
void SetConvertJITFrame(bool enable) { convert_jit_frame_ = enable; }
// Add proguard mapping.txt to de-obfuscate minified symbols.
bool AddProguardMappingFile(std::string_view mapping_file);
std::vector<CallChainReportEntry> Build(const ThreadEntry* thread,
const std::vector<uint64_t>& ips, size_t kernel_ip_count);
private:
struct JavaMethod {
Dso* dso;
const Symbol* symbol;
JavaMethod(Dso* dso, const Symbol* symbol) : dso(dso), symbol(symbol) {}
};
struct ProguardMappingClass {
std::string original_classname;
// Map from minified method names to original method names.
std::unordered_map<std::string, std::string> method_map;
};
void MarkArtFrame(std::vector<CallChainReportEntry>& callchain);
void ConvertJITFrame(std::vector<CallChainReportEntry>& callchain);
void CollectJavaMethods();
void DeObfuscateJavaMethods(std::vector<CallChainReportEntry>& callchain);
ThreadTree& thread_tree_;
bool remove_art_frame_ = true;
bool convert_jit_frame_ = true;
bool java_method_initialized_ = false;
std::unordered_map<std::string, JavaMethod> java_method_map_;
// Map from minified class names to ProguardMappingClass.
std::unordered_map<std::string, ProguardMappingClass> proguard_class_map_;
};
} // namespace simpleperf
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