lib/libc/mips/SYS.h

   1 /*-
   2  * Copyright (c) 1991, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * This code is derived from software contributed to Berkeley by
   6  * Ralph Campbell.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. All advertising materials mentioning features or use of this software
  17  *    must display the following acknowledgement:
  18  *      This product includes software developed by the University of
  19  *      California, Berkeley and its contributors.
  20  * 4. Neither the name of the University nor the names of its contributors
  21  *    may be used to endorse or promote products derived from this software
  22  *    without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34  * SUCH DAMAGE.
  35  *
  36  *      $OpenBSD: SYS.h,v 1.3 1996/07/30 20:27:48 pefo Exp $
  37  */
  38
  39 #include <sys/syscall.h>
  40 #include <machine/asm.h>
  41
  42 #ifdef __STDC__
  43 #define RSYSCALL(x)      \
  44                         LEAF(x);                \
  45                         li      v0,SYS_ ## x;   \
  46                         syscall;                \
  47                         bne     a3,zero,err;    \
  48                         j       ra;             \
  49                         err: la t9, cerror;     \
  50                         jr t9;                  \
  51                         END(x);
  52 #define PSEUDO(x,y)     \
  53                         LEAF(x);                \
  54                         li      v0,SYS_ ## y;   \
  55                         syscall;                \
  56                         bne     a3,zero,err;    \
  57                         j       ra;             \
  58                         err: la t9, cerror;     \
  59                         jr t9;                  \
  60                         END(x);
  61 #else
  62 #define RSYSCALL(x)     \
  63                         LEAF(x);                \
  64                         li      v0,SYS_/**/x;   \
  65                         syscall;                \
  66                         bne     a3,zero,err;    \
  67                         j       ra;             \
  68                         err: la t9, cerror;     \
  69                         jr      t9;             \
  70                         END(x);
  71 #define PSEUDO(x,y)     \
  72                         LEAF(x);                \
  73                         li      v0,SYS_/**/y;   \
  74                         syscall;                \
  75                         bne     a3,zero,err;    \
  76                         j       ra;             \
  77                         err: la t9, cerror;     \
  78                         jr t9;                  \
  79                         END(x);
  80 #endif