mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-14 22:31:29 +03:00
0bb7c8f4c4
Instead, allow userspace to decide on the coredump directory path. By default, SystemServer sets it to the /tmp/coredump directory, but users can now change this by writing a new path to the sysfs node at /sys/kernel/variables/coredump_directory, and also to read this node to check where coredumps are currently generated at.
89 lines
3.0 KiB
C++
89 lines
3.0 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/OwnPtr.h>
|
|
#include <AK/Vector.h>
|
|
#include <Kernel/Forward.h>
|
|
#include <Kernel/Library/NonnullLockRefPtr.h>
|
|
#include <Kernel/Locking/SpinlockProtected.h>
|
|
#include <Kernel/Memory/Region.h>
|
|
|
|
namespace Kernel {
|
|
|
|
class Coredump {
|
|
public:
|
|
static ErrorOr<NonnullOwnPtr<Coredump>> try_create(NonnullLockRefPtr<Process>, StringView output_path);
|
|
static SpinlockProtected<OwnPtr<KString>>& directory_path();
|
|
|
|
~Coredump() = default;
|
|
ErrorOr<void> write();
|
|
|
|
private:
|
|
class FlatRegionData {
|
|
public:
|
|
explicit FlatRegionData(Memory::Region const& region, NonnullOwnPtr<KString> name)
|
|
: m_access(region.access())
|
|
, m_is_executable(region.is_executable())
|
|
, m_is_kernel(region.is_kernel())
|
|
, m_is_readable(region.is_readable())
|
|
, m_is_writable(region.is_writable())
|
|
, m_name(move(name))
|
|
, m_page_count(region.page_count())
|
|
, m_size(region.size())
|
|
, m_vaddr(region.vaddr())
|
|
{
|
|
}
|
|
|
|
auto access() const { return m_access; }
|
|
auto name() const { return m_name->view(); }
|
|
auto is_executable() const { return m_is_executable; }
|
|
auto is_kernel() const { return m_is_kernel; }
|
|
auto is_readable() const { return m_is_readable; }
|
|
auto is_writable() const { return m_is_writable; }
|
|
auto page_count() const { return m_page_count; }
|
|
auto size() const { return m_size; }
|
|
auto vaddr() const { return m_vaddr; }
|
|
|
|
bool looks_like_userspace_heap_region() const;
|
|
bool is_consistent_with_region(Memory::Region const& region) const;
|
|
|
|
private:
|
|
Memory::Region::Access m_access;
|
|
bool m_is_executable;
|
|
bool m_is_kernel;
|
|
bool m_is_readable;
|
|
bool m_is_writable;
|
|
NonnullOwnPtr<KString> m_name;
|
|
size_t m_page_count;
|
|
size_t m_size;
|
|
VirtualAddress m_vaddr;
|
|
};
|
|
|
|
Coredump(NonnullLockRefPtr<Process>, NonnullLockRefPtr<OpenFileDescription>, Vector<FlatRegionData>);
|
|
static ErrorOr<NonnullLockRefPtr<OpenFileDescription>> try_create_target_file(Process const&, StringView output_path);
|
|
|
|
ErrorOr<void> write_elf_header();
|
|
ErrorOr<void> write_program_headers(size_t notes_size);
|
|
ErrorOr<void> write_regions();
|
|
ErrorOr<void> write_notes_segment(ReadonlyBytes);
|
|
|
|
ErrorOr<void> create_notes_segment_data(auto&) const;
|
|
ErrorOr<void> create_notes_process_data(auto&) const;
|
|
ErrorOr<void> create_notes_threads_data(auto&) const;
|
|
ErrorOr<void> create_notes_regions_data(auto&) const;
|
|
ErrorOr<void> create_notes_metadata_data(auto&) const;
|
|
|
|
NonnullLockRefPtr<Process> m_process;
|
|
NonnullLockRefPtr<OpenFileDescription> m_description;
|
|
size_t m_num_program_headers { 0 };
|
|
Vector<FlatRegionData> m_regions;
|
|
};
|
|
|
|
}
|