sysdeps/unix/alpha/sysdep.h

   1 /* Copyright (C) 1992, 1995, 1996 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 #include <sysdeps/unix/sysdep.h>
  20
  21 #ifdef ASSEMBLER
  22
  23 #ifdef __STDC__
  24 #define ENTRY(name)                             \
  25   .globl name;                                  \
  26   .align 3;                                     \
  27   .ent name,0;                                  \
  28   name##:                                       \
  29   .frame sp,0,ra
  30 #else
  31 #define ENTRY(name)                             \
  32   .globl name;                                  \
  33   .align 3;                                     \
  34   .ent name,0;                                  \
  35   name/**/:                                     \
  36   .frame sp,0,ra
  37 #endif
  38
  39 /* Note that while it's better structurally, going back to set errno
  40    can make things confusing if you're debugging---it looks like it's jumping
  41    backwards into the previous fn.  */
  42 #ifdef __STDC__
  43 #define PSEUDO(name, syscall_name, args)        \
  44     .globl name;                                \
  45     .align 3;                                   \
  46     .ent name,0;                                \
  47                                                 \
  48 1:  br          gp,2f;                          \
  49 2:  ldgp        gp,0(gp);                       \
  50     lda         pv,syscall_error;               \
  51     jmp         zero,(pv);                      \
  52                                                 \
  53 name##:                                         \
  54     ldi         v0,SYS_ify(syscall_name);       \
  55     .set noat;                                  \
  56     call_pal    PAL_callsys;                    \
  57     .set at;                                    \
  58     bne         a3,1b;                          \
  59 3:
  60 #else
  61 #define PSEUDO(name, syscall_name, args)        \
  62     .globl name;                                \
  63     .align 3;                                   \
  64     .ent name,0;                                \
  65                                                 \
  66 1:  br          gp,2f;                          \
  67 2:  ldgp        gp,0(gp);                       \
  68     lda         pv,syscall_error;               \
  69     jmp         zero,(pv);                      \
  70                                                 \
  71 name/**/:                                       \
  72     ldi         v0,SYS_ify(syscall_name);       \
  73     .set noat;                                  \
  74     call_pal    PAL_callsys;                    \
  75     .set at;                                    \
  76     bne         a3,1b;                          \
  77 3:
  78 #endif
  79
  80 #define ret     ret     zero,(ra),1
  81 #define r0      v0
  82 #define r1      a4
  83
  84 #define MOVE(x,y)       mov x,y
  85
  86 #endif