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/** AMD64 linker script
 *  
 * umapped section:
 *  kernel text
 *  kernel data
 * mapped section:
 *  kernel text
 *  kernel data 
 */

OUTPUT_FORMAT(binary)
ENTRY(kernel_image_start)

SECTIONS {
    .unmapped 0x8000: AT (0x8000) {
        unmapped_ktext_start = .;
        *(K_TEXT_START);
        *(K_TEXT_START_2);
        unmapped_ktext_end = .;
        unmapped_kdata_start = .;
        *(K_DATA_START);
        unmapped_kdata_end = .;
    }

    .mapped (0xffffffff80000000+SIZEOF(.unmapped)+0x8000) : AT (0x8000+SIZEOF(.unmapped)) {
        ktext_start = .;
        *(BOOT_DATA);
        *(.text);
        ktext_end = .;

        kdata_start = .;
        *(.data);       /* initialized data */
        *(.rodata*);        /* string literals */
        *(COMMON);      /* global variables */
        hardcoded_load_address = .;
        QUAD(0xffffffff80008000);
        hardcoded_ktext_size = .;
        QUAD(ktext_end - ktext_start + (unmapped_ktext_end - unmapped_ktext_start));
        hardcoded_kdata_size = .;
        QUAD(kdata_end - kdata_start + (unmapped_kdata_end - unmapped_kdata_start));
        *(.eh_frame);
        *(.bss);        /* uninitialized static variables */
        *(K_DATA_END);
        kdata_end = .;
    }
    _map_address = 0xffffffff80000000;
    e820table_boot = e820table - _map_address;
    e820counter_boot = e820counter - _map_address;
}