ladybird/Kernel/linker.ld

#include <AK/Platform.h>

ENTRY(init)

#if ARCH(I386)
#    define KERNEL_BASE 0xc0000000
#else
#    define KERNEL_BASE 0x2000000000
#endif

#define PF_X 0x1
#define PF_W 0x2
#define PF_R 0x4

KERNEL_VIRTUAL_BASE = KERNEL_BASE;

PHDRS
{
  super_pages PT_LOAD FLAGS(PF_R | PF_W) ;
  text PT_LOAD FLAGS(PF_R | PF_X) ;
  data PT_LOAD FLAGS(PF_R | PF_W) ;
  bss PT_LOAD FLAGS(PF_R | PF_W) ;
  ksyms PT_LOAD FLAGS(PF_R) ;
}

SECTIONS
{
    . = KERNEL_VIRTUAL_BASE + 0x00200000;

    start_of_kernel_image = .;

    .super_pages ALIGN(4K) (NOLOAD) : AT (ADDR(.super_pages) - KERNEL_VIRTUAL_BASE)
    {
        *(.super_pages)
    } :super_pages

    .text ALIGN(4K) : AT (ADDR(.text) - KERNEL_VIRTUAL_BASE)
    {
        start_of_kernel_text = .;

        start_of_safemem_text = .;
        KEEP(*(.text.safemem))
        end_of_safemem_text = .;
        start_of_safemem_atomic_text = .;
        KEEP(*(.text.safemem.atomic))
        end_of_safemem_atomic_text = .;

        *(.text*)
    } :text

    .unmap_after_init ALIGN(4K) : AT (ADDR(.unmap_after_init) - KERNEL_VIRTUAL_BASE)
    {
        start_of_unmap_after_init = .;
        *(.unmap_after_init*);
        end_of_unmap_after_init = .;

        end_of_kernel_text = .;
    } :text

    .rodata ALIGN(4K) : AT (ADDR(.rodata) - KERNEL_VIRTUAL_BASE)
    {
        start_heap_ctors = .;
        *libkernel_heap.a:*(.ctors)
        end_heap_ctors = .;

        start_ctors = .;
        *(.ctors)
        end_ctors = .;

        *(.rodata*)
    } :data

    .data ALIGN(4K) : AT (ADDR(.data) - KERNEL_VIRTUAL_BASE)
    {
        start_of_kernel_data = .;
        *(.data*)
        end_of_kernel_data = .;
    } :data

    .ro_after_init ALIGN(4K) (NOLOAD) : AT(ADDR(.ro_after_init) - KERNEL_VIRTUAL_BASE)
    {
        start_of_ro_after_init = .;
        *(.ro_after_init);
        end_of_ro_after_init = .;
    } :data

    .bss ALIGN(4K) (NOLOAD) : AT (ADDR(.bss) - KERNEL_VIRTUAL_BASE)
    {
        start_of_kernel_bss = .;
        *(page_tables)
        *(COMMON)
        *(.bss)
        end_of_kernel_bss = .;

        . = ALIGN(4K);
        *(.heap)
    } :bss


    .ksyms ALIGN(4K) : AT (ADDR(.ksyms) - KERNEL_VIRTUAL_BASE)
    {
        start_of_kernel_ksyms = .;
        *(.kernel_symbols)
        end_of_kernel_ksyms = .;
    } :ksyms

    end_of_kernel_image = .;
}