Date: Wed, 30 Jan 2013 01:30:06 +0000 (UTC) From: Benno Rice <benno@FreeBSD.org> To: src-committers@freebsd.org, svn-src-projects@freebsd.org Subject: svn commit: r246105 - in projects/uefi/sys/boot/i386/efi: . i386 Message-ID: <201301300130.r0U1U6SU031360@svn.freebsd.org>
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Author: benno Date: Wed Jan 30 01:30:06 2013 New Revision: 246105 URL: http://svnweb.freebsd.org/changeset/base/246105 Log: Move the original start.S to i386/start.S correctly. Sponsored by: FreeBSD Foundation Replaced: projects/uefi/sys/boot/i386/efi/i386/start.S - copied unchanged from r246098, projects/uefi/sys/boot/i386/efi/start.S Deleted: projects/uefi/sys/boot/i386/efi/start.S Copied: projects/uefi/sys/boot/i386/efi/i386/start.S (from r246098, projects/uefi/sys/boot/i386/efi/start.S) ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ projects/uefi/sys/boot/i386/efi/i386/start.S Wed Jan 30 01:30:06 2013 (r246105, copy of r246098, projects/uefi/sys/boot/i386/efi/start.S) @@ -0,0 +1,70 @@ +/*- + * Copyright (c) 2008-2010 Rui Paulo <rpaulo@FreeBSD.org> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + + .text + +#include <machine/asm.h> + +#define EFI_SUCCESS 0 + +/* + * EFI entry point. + * _start(EFI_IMAGE image_handle, EFI_SYSTEM_TABLE *system_table); + * + * We calculate the base address along with _DYNAMIC, relocate us and finally + * pass control to efi_main. + */ + +ENTRY(_start) + pushl %ebp + movl %esp, %ebp + + pushl 12(%ebp) /* image_handle */ + pushl 8(%ebp) /* system_table */ + call 0f +0: popl %eax + movl %eax, %ebx + addl $ImageBase-0b, %eax + addl $_DYNAMIC-0b, %ebx + pushl %ebx /* dynamic */ + pushl %eax /* ImageBase */ + call _reloc + cmpl $EFI_SUCCESS, %eax + jne 1f + popl %ebx /* remove ImageBase from the stack */ + popl %ebx /* remove dynamic from the stack */ + call efi_main +1: leave + ret +END(_start) + + .data + .section .reloc, "a" + .long 0 + .long 10 + .word 0
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