/********************************************************************* * * Copyright (C) 2002-2003, Karlsruhe University * * File path: startup.S * Description: X86_64 Startup file * * 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. * * $Id: startup.S,v 1.2 2006/10/19 22:57:40 ud3 Exp $ * ********************************************************************/ #define __ASSEMBLY__ #include #define ENTRY(name) \ .globl name; \ .align 4; \ name##: ENTRY(start) ENTRY(_start) leal _mini_stack-4,%esp push $0 popf /* Push magic */ push %eax /* Push multiboot info*/ push %ebx call startup .space 1024 _mini_stack: .section .mb_header .align 4 _mb_header: .long MULTIBOOT_HEADER_MAGIC /* magic */ .long MULTIBOOT_HEADER_FLAGS /* no mb flags */ .long - (MULTIBOOT_HEADER_FLAGS + MULTIBOOT_HEADER_MAGIC) /* checksum */