/*
* Copyright (c) LSE
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*     * Redistributions of source code must retain the above copyright
*       notice, this list of conditions and the following disclaimer.
*     * 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 LSE 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 LSE 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.
*/
#include "multiboot.h"

#define HEADER_FLAGS (MULTIBOOT_PAGE_ALIGN | MULTIBOOT_MEMORY_INFO)
#define STACK_SIZE    8192

    .section .multiboot
    .type multiboot_header, @object
multiboot_header:
    .align        MULTIBOOT_HEADER_ALIGN
    .long        MULTIBOOT_HEADER_MAGIC
    .long        HEADER_FLAGS
    .long        -(MULTIBOOT_HEADER_MAGIC + HEADER_FLAGS)
    .size multiboot_header, . - multiboot_header

    .section .text
    .global k_entry
    .type k_entry, @function
k_entry:
    lea end_stack, %esp
    push %ebx    /* multiboot info */
    push %eax    /* magic */
    call k_main    /* kernel entry point */
.Lend:
    jmp .Lend
    .size k_entry, . - k_entry

.section .bss
stack:
    .space STACK_SIZE
    .align 16
end_stack:
.global end_stack