mirror of
https://github.com/RGBCube/serenity
synced 2025-05-18 04:05:07 +00:00
a607f13fc7
Previously Profiler was using timestamps to distinguish processes. However it is possible that separate processes with the same PID exist at the exact same timestamp (e.g. for execve). This changes Profiler to use unique serial numbers for each event instead.
74 lines
1.7 KiB
C++
74 lines
1.7 KiB
C++
/*
|
|
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "EventSerialNumber.h"
|
|
#include <AK/HashMap.h>
|
|
#include <AK/MappedFile.h>
|
|
#include <AK/OwnPtr.h>
|
|
#include <AK/Vector.h>
|
|
#include <LibELF/Image.h>
|
|
|
|
namespace Profiler {
|
|
|
|
struct MappedObject {
|
|
NonnullRefPtr<MappedFile> file;
|
|
ELF::Image elf;
|
|
};
|
|
|
|
extern HashMap<String, OwnPtr<MappedObject>> g_mapped_object_cache;
|
|
|
|
class LibraryMetadata {
|
|
public:
|
|
struct Library {
|
|
FlatPtr base;
|
|
size_t size;
|
|
String name;
|
|
FlatPtr text_base;
|
|
MappedObject* object { nullptr };
|
|
|
|
String symbolicate(FlatPtr, u32* offset) const;
|
|
};
|
|
|
|
void handle_mmap(FlatPtr base, size_t size, const String& name);
|
|
const Library* library_containing(FlatPtr) const;
|
|
|
|
private:
|
|
mutable HashMap<String, NonnullOwnPtr<Library>> m_libraries;
|
|
};
|
|
|
|
struct Thread {
|
|
pid_t tid;
|
|
EventSerialNumber start_valid;
|
|
EventSerialNumber end_valid;
|
|
|
|
bool valid_at(EventSerialNumber serial) const
|
|
{
|
|
return serial >= start_valid && (end_valid == EventSerialNumber {} || serial <= end_valid);
|
|
}
|
|
};
|
|
|
|
struct Process {
|
|
pid_t pid {};
|
|
String executable;
|
|
String basename;
|
|
HashMap<int, Vector<Thread>> threads {};
|
|
LibraryMetadata library_metadata {};
|
|
EventSerialNumber start_valid;
|
|
EventSerialNumber end_valid;
|
|
|
|
Thread* find_thread(pid_t tid, EventSerialNumber serial);
|
|
void handle_thread_create(pid_t tid, EventSerialNumber serial);
|
|
void handle_thread_exit(pid_t tid, EventSerialNumber serial);
|
|
|
|
bool valid_at(EventSerialNumber serial) const
|
|
{
|
|
return serial >= start_valid && (end_valid == EventSerialNumber {} || serial <= end_valid);
|
|
}
|
|
};
|
|
|
|
}
|