source: mainline/arch/ia32/_link.ld.in@ 1bdaa3f

/** IA-32 linker script
 *  
 * umapped section:
 *      kernel text
 *      kernel data
 * mapped section:
 *      kernel text
 *      kernel data 
 */

#define __ASM__
#include <arch/boot/boot.h>
#include <arch/mm/page.h>

ENTRY(kernel_image_start)

SECTIONS {
        .unmapped BOOTSTRAP_OFFSET: AT (BOOTSTRAP_OFFSET) {
                unmapped_ktext_start = .;
                *(K_TEXT_START);
                *(K_TEXT_START_2);
                unmapped_ktext_end = .;
        
                unmapped_kdata_start = .;
                *(K_DATA_START);
                unmapped_kdata_end = .;
        }
        
        .mapped (PA2KA(BOOT_OFFSET+BOOTSTRAP_OFFSET)+SIZEOF(.unmapped)): AT (BOOTSTRAP_OFFSET+SIZEOF(.unmapped)) { 
                ktext_start = .;
                *(BOOT_DATA);
                *(.text);
                ktext_end = .;
                
                kdata_start = .;
                *(.data);                       /* initialized data */
                *(.rodata*);                    /* string literals */
                *(COMMON);                      /* global variables */
                hardcoded_load_address = .;
                LONG(PA2KA(BOOT_OFFSET+BOOTSTRAP_OFFSET));
                hardcoded_ktext_size = .;
                LONG((ktext_end - ktext_start) + (unmapped_ktext_end - unmapped_ktext_start));
                hardcoded_kdata_size = .;
                LONG((kdata_end - kdata_start) + (unmapped_kdata_end - unmapped_kdata_start));
                hardcoded_unmapped_ktext_size = .;
                LONG(unmapped_ktext_end - unmapped_ktext_start);
                hardcoded_unmapped_kdata_size = .;
                LONG(unmapped_kdata_end - unmapped_kdata_start);
                *(.bss);                        /* uninitialized static variables */
                symbol_table = .;
                *(symtab.*);                    /* Symbol table, must be LAST symbol! */

                kdata_end = .;
        }

        /DISCARD/ : {
                *(.note.GNU-stack);             
                *(.comment);
        }

        
        _hardcoded_kernel_size = (ktext_end - ktext_start) + (unmapped_ktext_end - unmapped_ktext_start) + (kdata_end - kdata_start) + (unmapped_kdata_end - unmapped_kdata_start);
        _hardcoded_unmapped_size = (unmapped_ktext_end - unmapped_ktext_start) + (unmapped_kdata_end - unmapped_kdata_start);
        
        e820table_boot = KA2PA(e820table) - BOOT_OFFSET;
        e820counter_boot = KA2PA(e820counter) - BOOT_OFFSET;
        real_bootstrap_gdtr = PA2KA(real_bootstrap_gdtr_boot);
}