u-boot/arch/x86/cpu/u-boot.lds
Simon Glass f82d15ead1 x86: Rearrange the output input to remove BSS
At present BSS data is including in the image, which wastes binary space.
Remove it by rearranging the sections so that BSS is last.

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-04 15:57:40 -08:00

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/*
* (C) Copyright 2002
* Daniel Engström, Omicron Ceti AB, daniel@omicron.se.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <config.h>
OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
OUTPUT_ARCH(i386)
ENTRY(_start)
SECTIONS
{
. = CONFIG_SYS_TEXT_BASE; /* Location of bootcode in flash */
__text_start = .;
.text : { *(.text*); }
. = ALIGN(4);
. = ALIGN(4);
.u_boot_list : {
#include <u-boot.lst>
}
. = ALIGN(4);
.rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) }
. = ALIGN(4);
.data : { *(.data*) }
. = ALIGN(4);
.hash : { *(.hash*) }
. = ALIGN(4);
.got : { *(.got*) }
. = ALIGN(4);
__data_end = .;
. = ALIGN(4);
.dynsym : { *(.dynsym*) }
. = ALIGN(4);
__rel_dyn_start = .;
.rel.dyn : { *(.rel.dyn) }
__rel_dyn_end = .;
. = ALIGN(4);
_end = .;
. = ALIGN(4);
__end = .;
.bss __rel_dyn_start (OVERLAY) : {
__bss_start = .;
*(.bss)
*(COM*)
. = ALIGN(4);
__bss_end = .;
}
/DISCARD/ : { *(.dynstr*) }
/DISCARD/ : { *(.dynamic*) }
/DISCARD/ : { *(.plt*) }
/DISCARD/ : { *(.interp*) }
/DISCARD/ : { *(.gnu*) }
/* 16bit realmode trampoline code */
.realmode REALMODE_BASE : AT ( LOADADDR(.rel.dyn) + SIZEOF(.rel.dyn) ) { KEEP(*(.realmode)) }
__realmode_start = LOADADDR(.realmode);
__realmode_size = SIZEOF(.realmode);
/* 16bit BIOS emulation code (just enough to boot Linux) */
.bios 0 : AT ( LOADADDR(.realmode) + SIZEOF(.realmode) ) { KEEP(*(.bios)) }
__bios_start = LOADADDR(.bios);
__bios_size = SIZEOF(.bios);
#ifdef CONFIG_X86_RESET_VECTOR
/*
* The following expressions place the 16-bit Real-Mode code and
* Reset Vector at the end of the Flash ROM
*/
. = START_16;
.start16 : AT (CONFIG_SYS_TEXT_BASE + (CONFIG_SYS_MONITOR_LEN - RESET_SEG_SIZE + START_16)) { KEEP(*(.start16)); }
. = RESET_VEC_LOC;
.resetvec : AT (CONFIG_SYS_TEXT_BASE + (CONFIG_SYS_MONITOR_LEN - RESET_SEG_SIZE + RESET_VEC_LOC)) { KEEP(*(.resetvec)); }
#endif
}