u-boot/arch/x86/cpu/start64.S

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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* 64-bit x86 Startup Code
*
* (C) Copyright 216 Google, Inc
* Written by Simon Glass <sjg@chromium.org>
*/
#include <config.h>
.section .text.start
.code64
.globl _start
.type _start, @function
_start:
/* Set up memory using the existing stack */
mov %rsp, %rdi
call board_init_f_alloc_reserve
mov %rax, %rsp
call board_init_f_init_reserve
xor %rdi, %rdi
call board_init_f
call board_init_f_r
/* Should not return here */
jmp .