mirror of
https://github.com/RGBCube/serenity
synced 2025-05-15 09:44:58 +00:00
9cc35d1ba3
This implements StringUtils::find_any_of() and uses it in
String::find_any_of() and StringView::find_any_of(). All uses of
find_{first,last}_of have been replaced with find_any_of(), find() or
find_last(). find_{first,last}_of have subsequently been removed.
121 lines
3.3 KiB
C++
121 lines
3.3 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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#include "Process.h"
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namespace Profiler {
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Thread* Process::find_thread(pid_t tid, EventSerialNumber serial)
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{
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auto it = threads.find(tid);
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if (it == threads.end())
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return nullptr;
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for (auto& thread : it->value) {
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if (thread.start_valid < serial && (thread.end_valid == EventSerialNumber {} || thread.end_valid > serial))
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return &thread;
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}
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return nullptr;
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}
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void Process::handle_thread_create(pid_t tid, EventSerialNumber serial)
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{
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auto it = threads.find(tid);
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if (it == threads.end()) {
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threads.set(tid, {});
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it = threads.find(tid);
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}
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auto thread = Thread { tid, serial, {} };
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it->value.append(move(thread));
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}
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void Process::handle_thread_exit(pid_t tid, EventSerialNumber serial)
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{
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auto* thread = find_thread(tid, serial);
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if (!thread)
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return;
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thread->end_valid = serial;
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}
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HashMap<String, OwnPtr<MappedObject>> g_mapped_object_cache;
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static MappedObject* get_or_create_mapped_object(const String& path)
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{
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if (auto it = g_mapped_object_cache.find(path); it != g_mapped_object_cache.end())
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return it->value.ptr();
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auto file_or_error = MappedFile::map(path);
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if (file_or_error.is_error()) {
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g_mapped_object_cache.set(path, {});
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return nullptr;
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}
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auto elf = ELF::Image(file_or_error.value()->bytes());
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if (!elf.is_valid()) {
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g_mapped_object_cache.set(path, {});
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return nullptr;
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}
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auto new_mapped_object = adopt_own(*new MappedObject {
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.file = file_or_error.release_value(),
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.elf = elf,
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});
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auto* ptr = new_mapped_object.ptr();
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g_mapped_object_cache.set(path, move(new_mapped_object));
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return ptr;
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}
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void LibraryMetadata::handle_mmap(FlatPtr base, size_t size, const String& name)
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{
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String path;
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if (name.contains("Loader.so"))
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path = "Loader.so";
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else if (!name.contains(":"))
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return;
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else
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path = name.substring(0, name.view().find(':').value());
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String full_path;
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if (name.contains(".so"))
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full_path = String::formatted("/usr/lib/{}", path);
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else
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full_path = path;
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auto* mapped_object = get_or_create_mapped_object(full_path);
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if (!mapped_object) {
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full_path = String::formatted("/usr/local/lib/{}", path);
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mapped_object = get_or_create_mapped_object(full_path);
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if (!mapped_object)
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return;
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}
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FlatPtr text_base {};
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mapped_object->elf.for_each_program_header([&](const ELF::Image::ProgramHeader& ph) {
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if (ph.is_executable())
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text_base = ph.vaddr().get();
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return IterationDecision::Continue;
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});
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m_libraries.set(name, adopt_own(*new Library { base, size, name, text_base, mapped_object }));
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}
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String LibraryMetadata::Library::symbolicate(FlatPtr ptr, u32* offset) const
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{
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if (!object)
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return String::formatted("?? <{:p}>", ptr);
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return object->elf.symbolicate(ptr - base + text_base, offset);
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}
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const LibraryMetadata::Library* LibraryMetadata::library_containing(FlatPtr ptr) const
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{
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for (auto& it : m_libraries) {
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auto& library = *it.value;
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if (ptr >= library.base && ptr < (library.base + library.size))
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return &library;
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}
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return nullptr;
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}
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}
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