u-boot/arch/arm/cpu/armv8/u-boot.lds
Stephen Warren 8163faf952 ARMv8: add optional Linux kernel image header
Allow placing a Linux kernel image header at the start of the U-Boot
binary. This is useful since the image header reports the amount of memory
(BSS and similar) that U-Boot needs to use, but that isn't part of the
binary size. This can be used by the code that loads U-Boot into memory to
determine where to load U-Boot, based on other users of memory.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2018-01-12 09:52:11 -07:00

166 lines
2.7 KiB
Text

/*
* (C) Copyright 2013
* David Feng <fenghua@phytium.com.cn>
*
* (C) Copyright 2002
* Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <config.h>
#include <asm/psci.h>
OUTPUT_FORMAT("elf64-littleaarch64", "elf64-littleaarch64", "elf64-littleaarch64")
OUTPUT_ARCH(aarch64)
ENTRY(_start)
SECTIONS
{
#ifdef CONFIG_ARMV8_SECURE_BASE
/DISCARD/ : { *(.rela._secure*) }
#endif
. = 0x00000000;
. = ALIGN(8);
.text :
{
*(.__image_copy_start)
CPUDIR/start.o (.text*)
*(.text*)
}
#ifdef CONFIG_ARMV8_PSCI
.__secure_start :
#ifndef CONFIG_ARMV8_SECURE_BASE
ALIGN(CONSTANT(COMMONPAGESIZE))
#endif
{
KEEP(*(.__secure_start))
}
#ifndef CONFIG_ARMV8_SECURE_BASE
#define CONFIG_ARMV8_SECURE_BASE
#define __ARMV8_PSCI_STACK_IN_RAM
#endif
.secure_text CONFIG_ARMV8_SECURE_BASE :
AT(ADDR(.__secure_start) + SIZEOF(.__secure_start))
{
*(._secure.text)
}
.secure_data : AT(LOADADDR(.secure_text) + SIZEOF(.secure_text))
{
*(._secure.data)
}
.secure_stack ALIGN(ADDR(.secure_data) + SIZEOF(.secure_data),
CONSTANT(COMMONPAGESIZE)) (NOLOAD) :
#ifdef __ARMV8_PSCI_STACK_IN_RAM
AT(ADDR(.secure_stack))
#else
AT(LOADADDR(.secure_data) + SIZEOF(.secure_data))
#endif
{
KEEP(*(.__secure_stack_start))
. = . + CONFIG_ARMV8_PSCI_NR_CPUS * ARM_PSCI_STACK_SIZE;
. = ALIGN(CONSTANT(COMMONPAGESIZE));
KEEP(*(.__secure_stack_end))
}
#ifndef __ARMV8_PSCI_STACK_IN_RAM
. = LOADADDR(.secure_stack);
#endif
.__secure_end : AT(ADDR(.__secure_end)) {
KEEP(*(.__secure_end))
LONG(0x1d1071c); /* Must output something to reset LMA */
}
#endif
. = ALIGN(8);
.rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) }
. = ALIGN(8);
.data : {
*(.data*)
}
. = ALIGN(8);
. = .;
. = ALIGN(8);
.u_boot_list : {
KEEP(*(SORT(.u_boot_list*)));
}
. = ALIGN(8);
.efi_runtime : {
__efi_runtime_start = .;
*(efi_runtime_text)
*(efi_runtime_data)
__efi_runtime_stop = .;
}
.efi_runtime_rel : {
__efi_runtime_rel_start = .;
*(.relaefi_runtime_text)
*(.relaefi_runtime_data)
__efi_runtime_rel_stop = .;
}
. = ALIGN(8);
.image_copy_end :
{
*(.__image_copy_end)
}
. = ALIGN(8);
.rel_dyn_start :
{
*(.__rel_dyn_start)
}
.rela.dyn : {
*(.rela*)
}
.rel_dyn_end :
{
*(.__rel_dyn_end)
}
_end = .;
. = ALIGN(8);
.bss_start : {
KEEP(*(.__bss_start));
}
.bss : {
*(.bss*)
. = ALIGN(8);
}
.bss_end : {
KEEP(*(.__bss_end));
}
/DISCARD/ : { *(.dynsym) }
/DISCARD/ : { *(.dynstr*) }
/DISCARD/ : { *(.dynamic*) }
/DISCARD/ : { *(.plt*) }
/DISCARD/ : { *(.interp*) }
/DISCARD/ : { *(.gnu*) }
#ifdef CONFIG_LINUX_KERNEL_IMAGE_HEADER
#include "linux-kernel-image-header-vars.h"
#endif
}