mirror of
https://github.com/RGBCube/serenity
synced 2025-05-31 09:48:11 +00:00
b883652a83
This changes browsing through disassembled functions in Profiler from a painfully sluggish experience into quite a swift one. It's especially true for profiling the kernel, as it has more than 10 megabytes of DWARF data to churn through.
77 lines
1.9 KiB
C++
77 lines
1.9 KiB
C++
/*
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* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include "EventSerialNumber.h"
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#include <AK/HashMap.h>
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#include <AK/MappedFile.h>
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#include <AK/OwnPtr.h>
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#include <AK/Vector.h>
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#include <LibDebug/DebugInfo.h>
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#include <LibELF/Image.h>
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namespace Profiler {
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struct MappedObject {
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NonnullRefPtr<MappedFile> file;
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ELF::Image elf;
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};
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extern HashMap<String, OwnPtr<MappedObject>> g_mapped_object_cache;
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class LibraryMetadata {
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public:
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struct Library {
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FlatPtr base;
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size_t size;
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String name;
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MappedObject* object { nullptr };
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// This is loaded lazily because we only need it in disassembly view
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mutable OwnPtr<Debug::DebugInfo> debug_info;
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String symbolicate(FlatPtr, u32* offset) const;
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const Debug::DebugInfo& load_debug_info(FlatPtr base_address) const;
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};
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void handle_mmap(FlatPtr base, size_t size, const String& name);
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const Library* library_containing(FlatPtr) const;
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private:
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mutable HashMap<String, NonnullOwnPtr<Library>> m_libraries;
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};
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struct Thread {
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pid_t tid;
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EventSerialNumber start_valid;
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EventSerialNumber end_valid;
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bool valid_at(EventSerialNumber serial) const
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{
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return serial >= start_valid && (end_valid == EventSerialNumber {} || serial <= end_valid);
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}
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};
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struct Process {
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pid_t pid {};
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String executable;
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String basename;
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HashMap<int, Vector<Thread>> threads {};
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LibraryMetadata library_metadata {};
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EventSerialNumber start_valid;
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EventSerialNumber end_valid;
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Thread* find_thread(pid_t tid, EventSerialNumber serial);
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void handle_thread_create(pid_t tid, EventSerialNumber serial);
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void handle_thread_exit(pid_t tid, EventSerialNumber serial);
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bool valid_at(EventSerialNumber serial) const
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{
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return serial >= start_valid && (end_valid == EventSerialNumber {} || serial <= end_valid);
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}
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};
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}
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