mirror of
https://github.com/SerenityOS/serenity
synced 2024-09-06 08:56:40 +00:00
eeb4f2fa9b
When a process with a large heap crashes (e.g WebContent), it gets very cumbersome to dump out a huge amount of memory. In the vast majority of cases, we're only interested in generating a nice backtrace from the coredump, so let's have the kernel skip over userspace heap regions when dumping memory for now. This is not ideal, and almost a little bit ugly, but it does make investigating 500 MiB WebContent crashes significantly easier for now.
44 lines
1.2 KiB
C++
44 lines
1.2 KiB
C++
/*
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* Copyright (c) 2019-2020, Jesse Buhagiar <jooster669@gmail.com>
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* Copyright (c) 2020, Itamar S. <itamar8910@gmail.com>
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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 <AK/NonnullRefPtr.h>
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#include <AK/OwnPtr.h>
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#include <Kernel/Forward.h>
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namespace Kernel {
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class Coredump {
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public:
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static KResultOr<NonnullOwnPtr<Coredump>> try_create(NonnullRefPtr<Process>, StringView output_path);
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~Coredump() = default;
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KResult write();
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private:
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Coredump(NonnullRefPtr<Process>, NonnullRefPtr<OpenFileDescription>);
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static KResultOr<NonnullRefPtr<OpenFileDescription>> try_create_target_file(Process const&, StringView output_path);
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KResult write_elf_header();
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KResult write_program_headers(size_t notes_size);
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KResult write_regions();
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KResult write_notes_segment(ReadonlyBytes);
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KResult create_notes_segment_data(auto&) const;
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KResult create_notes_process_data(auto&) const;
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KResult create_notes_threads_data(auto&) const;
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KResult create_notes_regions_data(auto&) const;
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KResult create_notes_metadata_data(auto&) const;
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NonnullRefPtr<Process> m_process;
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NonnullRefPtr<OpenFileDescription> m_description;
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size_t m_num_program_headers { 0 };
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};
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}
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