/* $Id$ */
/* Copyright (c) 2009-2012 Pierre Pronchery <khorben@defora.org> */
/* This file is part of DeforaOS System libc */
/* 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 COPYRIGHT HOLDERS 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 COPYRIGHT
 * HOLDER 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. */



_syscall:
	mov	%ebp, %edx
	add	$4, %edx
	int	$0x30
.errno:
	cmp	$0, %eax
	jge	.errnoret
	neg	%eax
	mov	%eax, errno
	mov	$-1, %eax
.errnoret:
	ret


/* macros */
#define SYSCALL(name) \
.global name; \
.type name,@function; \
name:; \
	mov	$SYS_ ## name, %eax; \
	mov	$SYSL_ ## name, %ecx; \
	jmp	_syscall


/* functions */
/* _exit */
.global _exit
.type _exit,@function
_exit:
	mov	$SYS_exit, %eax
	mov	$SYSL_exit, %ecx
	jmp	_syscall


/* _sbrk */
.global _sbrk
.type _sbrk,@function
_sbrk:
	mov	$SYS_sbrk, %eax
	mov	$SYSL_sbrk, %ecx
	jmp	_syscall
#undef SYS_sbrk