ladybird/Kernel/Coredump.h
Andreas Kling 69b9b2888c Kernel: Don't allocate so much when generating coredumps
Instead of creating a bunch of ByteBuffers and concatenating them to
generate the "notes" segment, we now simply create a KBufferBuilder
and tell each of the notes generator helpers to write into the builder.

This allows the code to flow more naturally, with some bonus additional
error propagation. :^)
2021-09-06 18:56:51 +02:00

43 lines
1.2 KiB
C++

/*
* Copyright (c) 2019-2020, Jesse Buhagiar <jooster669@gmail.com>
* Copyright (c) 2020, Itamar S. <itamar8910@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/NonnullRefPtr.h>
#include <AK/OwnPtr.h>
#include <Kernel/Forward.h>
namespace Kernel {
class Coredump {
public:
static KResultOr<NonnullOwnPtr<Coredump>> try_create(NonnullRefPtr<Process>, StringView output_path);
~Coredump() = default;
[[nodiscard]] KResult write();
private:
Coredump(NonnullRefPtr<Process>, NonnullRefPtr<FileDescription>);
static KResultOr<NonnullRefPtr<FileDescription>> try_create_target_file(Process const&, StringView output_path);
KResult write_elf_header();
KResult write_program_headers(size_t notes_size);
KResult write_regions();
KResult write_notes_segment(ReadonlyBytes);
KResult create_notes_segment_data(auto&) const;
KResult create_notes_process_data(auto&) const;
KResult create_notes_threads_data(auto&) const;
KResult create_notes_regions_data(auto&) const;
KResult create_notes_metadata_data(auto&) const;
NonnullRefPtr<Process> m_process;
NonnullRefPtr<FileDescription> m_description;
const size_t m_num_program_headers;
};
}