sysdeps/unix/alpha/sysdep.h

   1 /* Copyright (C) 1992, 1995, 1996 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Brendan Kehoe (brendan@zen.org).
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Library General Public License as
   7    published by the Free Software Foundation; either version 2 of the
   8    License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Library General Public License for more details.
  14
  15    You should have received a copy of the GNU Library General Public
  16    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  17    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18    Boston, MA 02111-1307, USA.  */
  19
  20 #include <sysdeps/unix/sysdep.h>
  21
  22 #ifdef __ASSEMBLER__
  23
  24 #ifdef __linux__
  25 # include <alpha/regdef.h>
  26 #else
  27 # include <regdef.h>
  28 #endif
  29
  30 #ifdef __STDC__
  31 #define __LABEL(x)      x##:
  32 #else
  33 #define __LABEL(x)      x/**/:
  34 #endif
  35
  36 #define LEAF(name, framesize)                   \
  37   .globl name;                                  \
  38   .align 3;                                     \
  39   .ent name, 0;                                 \
  40   __LABEL(name)                                 \
  41   .frame sp, framesize, ra
  42
  43 #define ENTRY(name)                             \
  44   .globl name;                                  \
  45   .align 3;                                     \
  46   .ent name, 0;                                 \
  47   __LABEL(name)                                 \
  48   .frame sp, 0, ra
  49
  50 /* Mark the end of function SYM.  */
  51 #undef END
  52 #define END(sym)        .end sym
  53
  54 /* Note that PSEUDO/PSEUDO_END use label number 1996---do not use a
  55    label of that number between those two macros!  */
  56
  57 #ifdef PROF
  58 #define PSEUDO(name, syscall_name, args)        \
  59     .globl name;                                \
  60     .align 3;                                   \
  61     .ent name,0;                                \
  62 __LABEL(name)                                   \
  63     .frame sp, 0, ra;                           \
  64     ldgp gp,0(pv);                              \
  65     .set noat;                                  \
  66     lda AT,_mcount;                             \
  67     jsr AT,(AT),_mcount;                        \
  68     .set at;                                    \
  69     .prologue 1;                                \
  70     ldiq        v0, SYS_ify(syscall_name);      \
  71     .set noat;                                  \
  72     call_pal    PAL_callsys;                    \
  73     .set at;                                    \
  74     bne         a3, 1996f;                      \
  75 3:
  76 #else
  77 #define PSEUDO(name, syscall_name, args)        \
  78     .globl name;                                \
  79     .align 3;                                   \
  80     .ent name,0;                                \
  81 __LABEL(name)                                   \
  82     .frame sp, 0, ra                            \
  83     .prologue 0;                                \
  84     ldiq        v0, SYS_ify(syscall_name);      \
  85     .set noat;                                  \
  86     call_pal    PAL_callsys;                    \
  87     .set at;                                    \
  88     bne         a3, 1996f;                      \
  89 3:
  90 #endif
  91
  92 #undef PSEUDO_END
  93 #ifdef PROF
  94 #define PSEUDO_END(sym)                         \
  95 1996:                                           \
  96     jmp         zero, __syscall_error;          \
  97     END(sym)
  98 #else
  99 #define PSEUDO_END(sym)                         \
 100 1996:                                           \
 101     br          gp, 2f;                         \
 102 2:  ldgp        gp, 0(gp);                      \
 103     jmp         zero, __syscall_error;          \
 104     END(sym)
 105 #endif
 106
 107 #define r0      v0
 108 #define r1      a4
 109
 110 #define MOVE(x,y)       mov x,y
 111
 112 #endif