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/* SPDX-License-Identifier: BSD-3-Clause */
/*
* crt0-efi-x86_64.S - x86_64 EFI startup code.
* Copyright (C) 1999 Hewlett-Packard Co.
* Contributed by David Mosberger <davidm@hpl.hp.com>.
* Copyright (C) 2005 Intel Corporation
* Contributed by Fenghua Yu <fenghua.yu@intel.com>.
*
* All rights reserved.
*/
.text
.align 4
.globl _start
_start:
subq $8, %rsp
pushq %rcx
pushq %rdx
mov %rcx, %r8
mov %rdx, %r9
lea image_base(%rip), %rcx
lea _DYNAMIC(%rip), %rdx
call _relocate
popq %rdx
popq %rcx
testq %rax, %rax
jnz .exit
call efi_main
.exit:
addq $8, %rsp
ret
/*
* hand-craft a dummy .reloc section so EFI knows it's a relocatable
* executable:
*/
.data
dummy: .long 0
#define IMAGE_REL_ABSOLUTE 0
.section .reloc, "a"
label1:
.long dummy-label1 /* Page RVA */
.long 10 /* Block Size (2*4+2) */
.word (IMAGE_REL_ABSOLUTE << 12) + 0 /* reloc for dummy */
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