U-Boot

/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * Copyright (c) 2004-2008 Texas Instruments
 *
 * (C) Copyright 2002
 * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
 */

#include <config.h>
#include <asm/psci.h>

OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
OUTPUT_ARCH(arm)
ENTRY(_start)
SECTIONS
{
#if defined(CONFIG_ARMV7_SECURE_BASE) && defined(CONFIG_ARMV7_NONSEC)
	/*
	 * If CONFIG_ARMV7_SECURE_BASE is true, secure code will not
	 * bundle with u-boot, and code offsets are fixed. Secure zone
	 * only needs to be copied from the loading address to
	 * CONFIG_ARMV7_SECURE_BASE, which is the linking and running
	 * address for secure code.
	 *
	 * If CONFIG_ARMV7_SECURE_BASE is undefined, the secure zone will
	 * be included in u-boot address space, and some absolute address
	 * were used in secure code. The absolute addresses of the secure
	 * code also needs to be relocated along with the accompanying u-boot
	 * code.
	 *
	 * So DISCARD is only for CONFIG_ARMV7_SECURE_BASE.
	 */
	/DISCARD/ : { *(.rel._secure*) }
#endif
	. = 0x00000000;

	. = ALIGN(4);
	__image_copy_start = ADDR(.text);
	.text :
	{
		*(.vectors)
		CPUDIR/start.o (.text*)
	}

	/* This needs to come before *(.text*) */
	.efi_runtime : {
		__efi_runtime_start = .;
		*(.text.efi_runtime*)
		*(.rodata.efi_runtime*)
		*(.data.efi_runtime*)
		__efi_runtime_stop = .;
	}

	.text_rest :
	{
		*(.text*)
	}

#ifdef CONFIG_ARMV7_NONSEC

	/* Align the secure section only if we're going to use it in situ */
	.__secure_start
#ifndef CONFIG_ARMV7_SECURE_BASE
		ALIGN(CONSTANT(COMMONPAGESIZE))
#endif
	: {
		KEEP(*(.__secure_start))
	}

#ifndef CONFIG_ARMV7_SECURE_BASE
#define __ARMV7_SECURE_BASE
#define __ARMV7_PSCI_STACK_IN_RAM
#else
#define __ARMV7_SECURE_BASE	CONFIG_ARMV7_SECURE_BASE
#endif

	.secure_text __ARMV7_SECURE_BASE :
		AT(ADDR(.__secure_start) + SIZEOF(.__secure_start))
	{
		*(._secure.text)
	}

	.secure_data : AT(LOADADDR(.secure_text) + SIZEOF(.secure_text))
	{
		*(._secure.data)
	}

#ifdef CONFIG_ARMV7_PSCI
	.secure_stack ALIGN(ADDR(.secure_data) + SIZEOF(.secure_data),
			    CONSTANT(COMMONPAGESIZE)) (NOLOAD) :
#ifdef __ARMV7_PSCI_STACK_IN_RAM
		AT(ADDR(.secure_stack))
#else
		AT(LOADADDR(.secure_data) + SIZEOF(.secure_data))
#endif
	{
		KEEP(*(.__secure_stack_start))

		/* Skip addreses for stack */
		. = . + CONFIG_ARMV7_PSCI_NR_CPUS * ARM_PSCI_STACK_SIZE;

		/* Align end of stack section to page boundary */
		. = ALIGN(CONSTANT(COMMONPAGESIZE));

		KEEP(*(.__secure_stack_end))

#ifdef CONFIG_ARMV7_SECURE_MAX_SIZE
		/*
		 * We are not checking (__secure_end - __secure_start) here,
		 * as these are the load addresses, and do not include the
		 * stack section. Instead, use the end of the stack section
		 * and the start of the text section.
		 */
		ASSERT((. - ADDR(.secure_text)) <= CONFIG_ARMV7_SECURE_MAX_SIZE,
		       "Error: secure section exceeds secure memory size");
#endif
	}

#ifndef __ARMV7_PSCI_STACK_IN_RAM
	/* Reset VMA but don't allocate space if we have secure SRAM */
	. = LOADADDR(.secure_stack);
#endif

#endif

	.__secure_end : AT(ADDR(.__secure_end)) {
		*(.__secure_end)
		LONG(0x1d1071c);	/* Must output something to reset LMA */
	}
#endif

	. = ALIGN(4);
	.rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) }

	. = ALIGN(4);
	.data : {
		*(.data*)
	}

	. = ALIGN(4);

	. = .;

	. = ALIGN(4);
	__u_boot_list : {
		KEEP(*(SORT(__u_boot_list*)));
	}

	.efi_runtime_rel : {
		__efi_runtime_rel_start = .;
		*(.rel*.efi_runtime)
		*(.rel*.efi_runtime.*)
		__efi_runtime_rel_stop = .;
	}

	. = ALIGN(8);
	__image_copy_end = .;

	/*
	 * if CONFIG_USE_ARCH_MEMSET is not selected __bss_end - __bss_start
	 * needs to be a multiple of 8 and we overlay .bss with .rel.dyn
	 */
	.rel.dyn ALIGN(8) : {
		__rel_dyn_start = .;
		*(.rel*)
		__rel_dyn_end = .;
		. = ALIGN(8);
	}

	_end = .;
	_image_binary_end = .;

/*
 * These sections occupy the same memory, but their lifetimes do
 * not overlap: U-Boot initializes .bss only after applying dynamic
 * relocations and therefore after it doesn't need .rel.dyn any more.
 */
	.bss ADDR(.rel.dyn) (OVERLAY): {
		__bss_start = .;
		*(.bss*)
		. = ALIGN(4);
		__bss_end = .;
	}

	/DISCARD/ : { *(.dynsym) }
	/DISCARD/ : { *(.dynbss) }
	/DISCARD/ : { *(.dynstr*) }
	/DISCARD/ : { *(.dynamic*) }
	/DISCARD/ : { *(.plt*) }
	/DISCARD/ : { *(.interp*) }
	/DISCARD/ : { *(.gnu.hash) }
	/DISCARD/ : { *(.gnu*) }
	/DISCARD/ : { *(.ARM.exidx*) }
	/DISCARD/ : { *(.gnu.linkonce.armexidx.*) }
}

ASSERT(_image_binary_end % 8 == 0, \
       "_image_binary_end must be 8-byte aligned for device tree");