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7b745a20f1
These were easy to pick-up as these pointers are assigned during the construction point and are never changed afterwards. This small change to these pointers will ensure that our code will not accidentally assign these pointers with a new object which is always a kind of bug we will want to prevent.
89 lines
3.0 KiB
C++
89 lines
3.0 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/OwnPtr.h>
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#include <AK/Vector.h>
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#include <Kernel/Forward.h>
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#include <Kernel/Library/NonnullLockRefPtr.h>
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#include <Kernel/Locking/SpinlockProtected.h>
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#include <Kernel/Memory/Region.h>
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namespace Kernel {
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class Coredump {
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public:
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static ErrorOr<NonnullOwnPtr<Coredump>> try_create(NonnullRefPtr<Process>, StringView output_path);
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static SpinlockProtected<OwnPtr<KString>, LockRank::None>& directory_path();
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~Coredump() = default;
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ErrorOr<void> write();
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private:
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class FlatRegionData {
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public:
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explicit FlatRegionData(Memory::Region const& region, NonnullOwnPtr<KString> name)
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: m_access(region.access())
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, m_is_executable(region.is_executable())
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, m_is_kernel(region.is_kernel())
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, m_is_readable(region.is_readable())
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, m_is_writable(region.is_writable())
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, m_name(move(name))
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, m_page_count(region.page_count())
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, m_size(region.size())
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, m_vaddr(region.vaddr())
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{
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}
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auto access() const { return m_access; }
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auto name() const { return m_name->view(); }
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auto is_executable() const { return m_is_executable; }
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auto is_kernel() const { return m_is_kernel; }
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auto is_readable() const { return m_is_readable; }
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auto is_writable() const { return m_is_writable; }
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auto page_count() const { return m_page_count; }
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auto size() const { return m_size; }
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auto vaddr() const { return m_vaddr; }
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bool looks_like_userspace_heap_region() const;
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bool is_consistent_with_region(Memory::Region const& region) const;
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private:
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Memory::Region::Access m_access;
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bool m_is_executable;
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bool m_is_kernel;
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bool m_is_readable;
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bool m_is_writable;
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NonnullOwnPtr<KString> m_name;
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size_t m_page_count;
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size_t m_size;
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VirtualAddress m_vaddr;
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};
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Coredump(NonnullRefPtr<Process>, NonnullRefPtr<OpenFileDescription>, Vector<FlatRegionData>);
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static ErrorOr<NonnullRefPtr<OpenFileDescription>> try_create_target_file(Process const&, StringView output_path);
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ErrorOr<void> write_elf_header();
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ErrorOr<void> write_program_headers(size_t notes_size);
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ErrorOr<void> write_regions();
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ErrorOr<void> write_notes_segment(ReadonlyBytes);
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ErrorOr<void> create_notes_segment_data(auto&) const;
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ErrorOr<void> create_notes_process_data(auto&) const;
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ErrorOr<void> create_notes_threads_data(auto&) const;
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ErrorOr<void> create_notes_regions_data(auto&) const;
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ErrorOr<void> create_notes_metadata_data(auto&) const;
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NonnullRefPtr<Process> const m_process;
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NonnullRefPtr<OpenFileDescription> const m_description;
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size_t m_num_program_headers { 0 };
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Vector<FlatRegionData> m_regions;
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};
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}
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