sysdeps/unix/bsd/osf/alpha/sysdep.h

   1 /* Copyright (C) 1993, 1995 Free Software Foundation, Inc.
   2    Contributed by Brendan Kehoe (brendan@zen.org).
   3
   4 The GNU C Library is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU Library General Public License as
   6 published by the Free Software Foundation; either version 2 of the
   7 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 Library General Public License for more details.
  13
  14 You should have received a copy of the GNU Library General Public
  15 License along with the GNU C Library; see the file COPYING.LIB.  If
  16 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
  17 Cambridge, MA 02139, USA.  */
  18
  19 /* OSF/1 does not precede the asm names of C symbols with a `_'. */
  20 #define NO_UNDERSCORES
  21
  22 #include <sysdeps/unix/sysdep.h>
  23
  24 #ifdef  ASSEMBLER
  25
  26 #include <machine/pal.h>                /* get PAL_callsys */
  27 #include <regdef.h>
  28
  29 #ifdef __STDC__
  30 #define ENTRY(name) \
  31   .globl name;                                                                \
  32   .ent name,0;                                                                \
  33   name##:;                                                                    \
  34   .frame sp,0,ra
  35 #else
  36 #define ENTRY(name) \
  37   .globl name;                                                                \
  38   .ent name,0;                                                                \
  39   name/**/:;                                                                  \
  40   .frame sp,0,ra
  41 #endif
  42
  43 #ifdef __STDC__
  44 #define PSEUDO(name, syscall_name, args) \
  45   ENTRY(name);                                                                \
  46   ldiq v0, SYS_##syscall_name;                                                \
  47   .set noat;                                                                  \
  48   call_pal PAL_callsys;                                                       \
  49   .set at;                                                                    \
  50   beq a3, 10f;                                                                \
  51   br gp, 20f;                                                                 \
  52 20:;                                                                          \
  53   ldgp gp, 0(gp);                                                             \
  54   jmp zero, syscall_error;                                                    \
  55 10:
  56 #else
  57 #define PSEUDO(name, syscall_name, args) \
  58   ENTRY(name);                                                                \
  59   ldiq v0, SYS_/**/syscall_name;                                              \
  60   .set noat;                                                                  \
  61   call_pal PAL_callsys;                                                       \
  62   .set at;                                                                    \
  63   beq a3, 10f;                                                                \
  64   br gp, 20f;                                                                 \
  65 20:;                                                                          \
  66   ldgp gp, 0(gp);                                                             \
  67   jmp zero, syscall_error;                                                    \
  68 10:
  69 #endif
  70
  71 #define ret             ret zero,(ra),1
  72 #define r0              v0
  73 #define r1              a4
  74 #define MOVE(x,y)       mov x, y
  75
  76 #endif  /* ASSEMBLER */