k-tana-zero/k/crt0.S
Julien CLEMENT 3e881a6f33 fix: coding style
Signed-off-by: Julien CLEMENT <julien.clement@epita.fr>
2021-07-12 17:55:13 +02:00

56 lines
2.0 KiB
ArmAsm

/*
* 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