u-boot-brain/arch/x86/cpu/u-boot.lds
Simon Glass 65e4c0b168 x86: efi: Add EFI loader support for x86
Add the required pieces to support the EFI loader on x86.

Since U-Boot only builds for 32-bit on x86, only a 32-bit EFI application
is supported. If a 64-bit kernel must be booted, U-Boot supports this
directly using FIT (see doc/uImage.FIT/kernel.its). U-Boot can act as a
payload for both 32-bit and 64-bit EFI.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2016-10-19 09:01:53 +02:00

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/*
* (C) Copyright 2002
* Daniel Engström, Omicron Ceti AB, daniel@omicron.se.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <config.h>
OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
OUTPUT_ARCH(i386)
ENTRY(_start)
SECTIONS
{
#ifndef CONFIG_CMDLINE
/DISCARD/ : { *(.u_boot_list_2_cmd_*) }
#endif
. = CONFIG_SYS_TEXT_BASE; /* Location of bootcode in flash */
__text_start = .;
.text : { *(.text*); }
. = ALIGN(4);
. = ALIGN(4);
.u_boot_list : {
KEEP(*(SORT(.u_boot_list*)));
}
. = ALIGN(4);
.rodata : {
*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
KEEP(*(.rodata.efi.init));
}
. = ALIGN(4);
.data : { *(.data*) }
. = ALIGN(4);
.hash : { *(.hash*) }
. = ALIGN(4);
.got : { *(.got*) }
. = ALIGN(4);
.__efi_runtime_start : {
*(.__efi_runtime_start)
}
.efi_runtime : {
*(efi_runtime_text)
*(efi_runtime_data)
}
.__efi_runtime_stop : {
*(.__efi_runtime_stop)
}
.efi_runtime_rel_start :
{
*(.__efi_runtime_rel_start)
}
.efi_runtime_rel : {
*(.relefi_runtime_text)
*(.relefi_runtime_data)
}
.efi_runtime_rel_stop :
{
*(.__efi_runtime_rel_stop)
}
. = ALIGN(4);
__data_end = .;
__init_end = .;
. = ALIGN(4);
.dynsym : { *(.dynsym*) }
. = ALIGN(4);
__rel_dyn_start = .;
.rel.dyn : {
*(.rel*)
}
__rel_dyn_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*) }
#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 - RESET_SEG_START;
.start16 : AT (START_16) {
KEEP(*(.start16));
}
. = RESET_VEC_LOC - RESET_SEG_START;
.resetvec : AT (RESET_VEC_LOC) {
KEEP(*(.resetvec));
}
#endif
}