199767f8919635c4928607450d9e0abb932109ceToomas Soome/*-
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Copyright (c) 2008-2010 Rui Paulo <rpaulo@FreeBSD.org>
199767f8919635c4928607450d9e0abb932109ceToomas Soome * All rights reserved.
199767f8919635c4928607450d9e0abb932109ceToomas Soome *
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Redistribution and use in source and binary forms, with or without
199767f8919635c4928607450d9e0abb932109ceToomas Soome * modification, are permitted provided that the following conditions
199767f8919635c4928607450d9e0abb932109ceToomas Soome * are met:
199767f8919635c4928607450d9e0abb932109ceToomas Soome * 1. Redistributions of source code must retain the above copyright
199767f8919635c4928607450d9e0abb932109ceToomas Soome * notice, this list of conditions and the following disclaimer.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * 2. Redistributions in binary form must reproduce the above copyright
199767f8919635c4928607450d9e0abb932109ceToomas Soome * notice, this list of conditions and the following disclaimer in the
199767f8919635c4928607450d9e0abb932109ceToomas Soome * documentation and/or other materials provided with the distribution.
199767f8919635c4928607450d9e0abb932109ceToomas Soome *
199767f8919635c4928607450d9e0abb932109ceToomas Soome * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
199767f8919635c4928607450d9e0abb932109ceToomas Soome * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
199767f8919635c4928607450d9e0abb932109ceToomas Soome * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
199767f8919635c4928607450d9e0abb932109ceToomas Soome * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
199767f8919635c4928607450d9e0abb932109ceToomas Soome * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
199767f8919635c4928607450d9e0abb932109ceToomas Soome * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
199767f8919635c4928607450d9e0abb932109ceToomas Soome * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
199767f8919635c4928607450d9e0abb932109ceToomas Soome * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
199767f8919635c4928607450d9e0abb932109ceToomas Soome * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
199767f8919635c4928607450d9e0abb932109ceToomas Soome * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
199767f8919635c4928607450d9e0abb932109ceToomas Soome * SUCH DAMAGE.
199767f8919635c4928607450d9e0abb932109ceToomas Soome *
199767f8919635c4928607450d9e0abb932109ceToomas Soome * $FreeBSD$
199767f8919635c4928607450d9e0abb932109ceToomas Soome */
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome .text
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome#include <machine/asm.h>
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define EFI_SUCCESS 0
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome/*
199767f8919635c4928607450d9e0abb932109ceToomas Soome * EFI entry point.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * _start(EFI_IMAGE image_handle, EFI_SYSTEM_TABLE *system_table);
199767f8919635c4928607450d9e0abb932109ceToomas Soome *
199767f8919635c4928607450d9e0abb932109ceToomas Soome * We calculate the base address along with _DYNAMIC, relocate us and finally
199767f8919635c4928607450d9e0abb932109ceToomas Soome * pass control to efi_main.
199767f8919635c4928607450d9e0abb932109ceToomas Soome */
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas SoomeENTRY(_start)
199767f8919635c4928607450d9e0abb932109ceToomas Soome pushl %ebp
199767f8919635c4928607450d9e0abb932109ceToomas Soome movl %esp, %ebp
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome pushl 12(%ebp) /* image_handle */
199767f8919635c4928607450d9e0abb932109ceToomas Soome pushl 8(%ebp) /* system_table */
199767f8919635c4928607450d9e0abb932109ceToomas Soome call 0f
199767f8919635c4928607450d9e0abb932109ceToomas Soome0: popl %eax
199767f8919635c4928607450d9e0abb932109ceToomas Soome movl %eax, %ebx
199767f8919635c4928607450d9e0abb932109ceToomas Soome addl $ImageBase-0b, %eax
199767f8919635c4928607450d9e0abb932109ceToomas Soome addl $_DYNAMIC-0b, %ebx
199767f8919635c4928607450d9e0abb932109ceToomas Soome pushl %ebx /* dynamic */
199767f8919635c4928607450d9e0abb932109ceToomas Soome pushl %eax /* ImageBase */
199767f8919635c4928607450d9e0abb932109ceToomas Soome call self_reloc
199767f8919635c4928607450d9e0abb932109ceToomas Soome popl %ebx /* remove ImageBase from the stack */
199767f8919635c4928607450d9e0abb932109ceToomas Soome popl %ebx /* remove dynamic from the stack */
199767f8919635c4928607450d9e0abb932109ceToomas Soome call efi_main
199767f8919635c4928607450d9e0abb932109ceToomas Soome1: leave
199767f8919635c4928607450d9e0abb932109ceToomas Soome ret
199767f8919635c4928607450d9e0abb932109ceToomas SoomeEND(_start)
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome .data
199767f8919635c4928607450d9e0abb932109ceToomas Soome .section .reloc, "a"
199767f8919635c4928607450d9e0abb932109ceToomas Soome .long 0
199767f8919635c4928607450d9e0abb932109ceToomas Soome .long 10
199767f8919635c4928607450d9e0abb932109ceToomas Soome .word 0