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/projects/cubeos/src_current/libc/syscall.h

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/*  src_experimental/libc/syscall.h
    CubeOS Version 0.4.90 experimental
    Copyright (C) 1999,2000 Holger Kenn

    CubeOS is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or any later version.

    CubeOS 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
    Library General Public License for more details.

*/  

/* General use syscall.h file.
   The more ports that use this file, the simpler sim/common/nltvals.def
   remains.  */

#ifndef LIBGLOSS_SYSCALL_H
#define LIBGLOSS_SYSCALL_H

/* Note: This file may be included by assembler source.  */

/* These should be as small as possible to allow a port to use a trap type
   instruction, which the system call # as the trap (the d10v for instance
   supports traps 0..31).  An alternative would be to define one trap for doing
   system calls, and put the system call number in a register that is not used
   for the normal calling sequence (so that you don't have to shift down the
   arguments to add the system call number).  Obviously, if these system call
   numbers are ever changed, all of the simulators and potentially user code
   will need to be updated.  */

/* There is no current need for the following: SYS_execv, SYS_creat, SYS_wait,
   etc. etc.  Don't add them.  */

/* These are required by the ANSI C part of newlib (excluding system() of
   course).  */
#define SYS_exit        1
#define SYS_open        2
#define SYS_close       3
#define SYS_read        4
#define SYS_write       5
#define SYS_lseek       6
#define SYS_unlink      7
#define SYS_getpid      8
#define SYS_kill        9
#define SYS_fstat       10
/*#define SYS_sbrk      11 - not currently a system call, but reserved.  */

/* ARGV support.  */
#define SYS_argvlen     12
#define SYS_argv        13

/* These are extras added for one reason or another.  */
#define SYS_chdir       14
#define SYS_stat        15
#define SYS_chmod       16
#define SYS_utime       17
#define SYS_time        18

#endif

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