banan-os/LibELF/include/LibELF/LoadableELF.h

57 lines
1.4 KiB
C++

#pragma once
#ifndef __is_kernel
#error "This is kernel only header"
#endif
#include <BAN/UniqPtr.h>
#include <BAN/Vector.h>
#include <kernel/Credentials.h>
#include <kernel/FS/Inode.h>
#include <kernel/Memory/PageTable.h>
#include <LibELF/Types.h>
namespace LibELF
{
class LoadableELF
{
BAN_NON_COPYABLE(LoadableELF);
BAN_NON_MOVABLE(LoadableELF);
public:
static BAN::ErrorOr<BAN::UniqPtr<LoadableELF>> load_from_inode(Kernel::PageTable&, BAN::RefPtr<Kernel::Inode>);
~LoadableELF();
Kernel::vaddr_t entry_point() const;
bool contains(Kernel::vaddr_t address) const;
bool is_address_space_free() const;
void reserve_address_space();
void update_suid_sgid(Kernel::Credentials&);
BAN::ErrorOr<void> load_page_to_memory(Kernel::vaddr_t address);
BAN::ErrorOr<BAN::UniqPtr<LoadableELF>> clone(Kernel::PageTable&);
size_t virtual_page_count() const { return m_virtual_page_count; }
size_t physical_page_count() const { return m_physical_page_count; }
private:
LoadableELF(Kernel::PageTable&, BAN::RefPtr<Kernel::Inode>);
BAN::ErrorOr<void> initialize();
private:
BAN::RefPtr<Kernel::Inode> m_inode;
Kernel::PageTable& m_page_table;
ElfNativeFileHeader m_file_header;
BAN::Vector<ElfNativeProgramHeader> m_program_headers;
size_t m_virtual_page_count = 0;
size_t m_physical_page_count = 0;
bool m_loaded { false };
};
}