sos-code-article7/sos/syscall.h

54 lines
1.6 KiB
C

/* Copyright (C) 2005 David Decotigny
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
USA.
*/
#ifndef _SOS_SYSCALL_H_
#define _SOS_SYSCALL_H_
/**
* @file syscall.h
*
* SOS Syscalls identifiers and handler. The handler is called by the
* underlying assembler routine (see hwcore/syscall.h)
*/
/**
* The user services offered by the SOS kernel
*/
#define SOS_SYSCALL_ID_EXIT 256 /**< Args: retval, retval=NONE */
#define SOS_SYSCALL_ID_BOCHS_WRITE 43 /**< Args: string, retval=num_printed */
#if defined(KERNEL_SOS) && !defined(ASM_SOURCE)
#include <sos/errno.h>
#include <hwcore/cpu_context.h>
/**
* "The" SOS syscall handler
*
* @param syscall_id The identifier of the syscall service
* @param user_ctxt The user context making the syscall
*/
sos_ret_t sos_do_syscall(int syscall_id,
const struct sos_cpu_state *user_ctxt);
#endif /* defined(KERNEL_SOS) && !defined(ASM_SOURCE) */
#endif /* _SOS_SYSCALL_H_ */