sysdeps/unix/bsd/sony/newsos/m68k/sysdep.h

   1 /* Copyright (C) 1993, 1994, 1995, 1997 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #include <sysdeps/unix/sysdep.h>
  20
  21 #ifdef __ASSEMBLER__
  22
  23 #define POUND   #
  24
  25 #ifdef  __STDC__
  26 #define ENTRY(name)                                                           \
  27   .globl _##name;                                                             \
  28   .even;                                                                      \
  29   _##name##:
  30 #else
  31 #define ENTRY(name)                                                           \
  32   .globl _/**/name;                                                           \
  33   .even;                                                                      \
  34   _/**/name/**/:
  35 #endif
  36
  37 #define PSEUDO(name, syscall_name, args)                                      \
  38   .even;                                                                      \
  39   .globl syscall_error;                                                       \
  40   error: jmp syscall_error;                                                   \
  41   ENTRY (name)                                                                \
  42   DO_CALL (POUND SYS_ify (syscall_name), args)
  43
  44 #define DO_CALL(syscall, args)                                                \
  45   movel syscall, d0;                                                          \
  46   linkw a6, POUND(0);                                                         \
  47   trap POUND(0);                                                              \
  48   unlk a6;                                                                    \
  49   bcs error
  50
  51 #define ret     rts
  52 #define r0      d0
  53 #define r1      d1
  54 #define MOVE(x,y)       movel x , y
  55
  56 #endif