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47 lines (43 loc) · 1.15 KB
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linker.ld
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47 lines (43 loc) · 1.15 KB
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/* Purpose: Combine the kernel.cpp object and loader.s object files
and output kernel.bin
*/
ENTRY(loader)
OUTPUT_FORMAT(elf32-i386)
OUTPUT_ARCH(i386:i386)
/* Collect the sections from different .o files and combine them here */
SECTIONS
{
. = 0x0100000;
/* text section */
.text :
{
*(.multiboot) /* ALL the multiboot sections; only one in loader.s */
*(.text*) /* ALL the text section ptr */
*(.rodata)
}
.data :
{
/* Data segment is for initialized vars in the object files.
* start_ctors and end_ctors (contructors of global objects) are
* function pointers. These will be known to the object files.
* These constructors are for the contstruction of global objects.
* i.e. if there are global vars, this makes sure the ctors are called
*/
start_ctors = .;
KEEP(*( .init_array ));
KEEP(*(SORT_BY_INIT_PRIORITY( .init_array.* )));
end_ctors = .;
*(.data) /* contains the data sections from .o files */
}
/* take ALL the bss sections */
.bss :
{
*(.bss)
}
/* the linker is told to discard the leftover symbols from converting to binary */
/DISCARD/ :
{
*(.fini_array*)
*(.comment) /* remove the comments */
}
}