mirror of
https://github.com/klzgrad/naiveproxy.git
synced 2024-12-01 01:36:09 +03:00
95 lines
2.6 KiB
C++
95 lines
2.6 KiB
C++
// Copyright 2018 The Chromium Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#ifndef BASE_SAMPLING_HEAP_PROFILER_MODULE_CACHE_H_
|
|
#define BASE_SAMPLING_HEAP_PROFILER_MODULE_CACHE_H_
|
|
|
|
#include <map>
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
#include "base/base_export.h"
|
|
#include "base/files/file_path.h"
|
|
#include "build/build_config.h"
|
|
|
|
#if defined(OS_WIN)
|
|
#include <windows.h>
|
|
#endif
|
|
|
|
namespace base {
|
|
|
|
class BASE_EXPORT ModuleCache {
|
|
public:
|
|
// Module represents the module (DLL or exe) and its validness state.
|
|
// This struct is used for sampling data transfer from NativeStackSampler
|
|
// to ProfileBuilder as well as by SamplingHeapProfiler.
|
|
struct BASE_EXPORT Module {
|
|
Module();
|
|
Module(uintptr_t base_address,
|
|
const std::string& id,
|
|
const FilePath& filename);
|
|
Module(uintptr_t base_address,
|
|
const std::string& id,
|
|
const FilePath& filename,
|
|
size_t size);
|
|
~Module();
|
|
|
|
// Points to the base address of the module.
|
|
uintptr_t base_address;
|
|
|
|
// An opaque binary string that uniquely identifies a particular program
|
|
// version with high probability. This is parsed from headers of the loaded
|
|
// module.
|
|
// For binaries generated by GNU tools:
|
|
// Contents of the .note.gnu.build-id field.
|
|
// On Windows:
|
|
// GUID + AGE in the debug image headers of a module.
|
|
std::string id;
|
|
|
|
// The filename of the module.
|
|
FilePath filename;
|
|
|
|
// The validness of the module.
|
|
bool is_valid;
|
|
|
|
// Size of the module.
|
|
size_t size;
|
|
};
|
|
|
|
ModuleCache();
|
|
~ModuleCache();
|
|
|
|
void Clear() { modules_cache_map_.clear(); }
|
|
|
|
const Module& GetModuleForAddress(uintptr_t address);
|
|
std::vector<const Module*> GetModules() const;
|
|
|
|
private:
|
|
// TODO(alph): Refactor corresponding functions to use public API instead,
|
|
// and drop friends.
|
|
|
|
// Creates a Module object for the specified memory address. If the address
|
|
// does not belong to a module returns an invalid module.
|
|
static Module CreateModuleForAddress(uintptr_t address);
|
|
friend class NativeStackSamplerMac;
|
|
|
|
#if defined(OS_MACOSX)
|
|
// Returns the size of the _TEXT segment of the module loaded
|
|
// at |module_addr|.
|
|
static size_t GetModuleTextSize(const void* module_addr);
|
|
friend bool MayTriggerUnwInitLocalCrash(uint64_t);
|
|
#endif
|
|
|
|
#if defined(OS_WIN)
|
|
static Module CreateModuleForHandle(HMODULE module_handle);
|
|
friend class NativeStackSamplerWin;
|
|
#endif
|
|
|
|
std::map<uintptr_t, Module> modules_cache_map_;
|
|
};
|
|
|
|
} // namespace base
|
|
|
|
#endif // BASE_SAMPLING_HEAP_PROFILER_MODULE_CACHE_H_
|