gcc/config/pa/lib2funcs.asm

   1 ;  Subroutines for calling unbound dynamic functions from within GDB for HPPA.
   2 ;  Subroutines for out of line prologues and epilogues on for the HPPA
   3 ;  Copyright (C) 1994, 1995, 1996 Free Software Foundation, Inc.
   4
   5 ;  This file is part of GNU CC.
   6
   7 ;  GNU CC is free software; you can redistribute it and/or modify
   8 ;  it under the terms of the GNU General Public License as published by
   9 ;  the Free Software Foundation; either version 2, or (at your option)
  10 ;  any later version.
  11
  12 ;  GNU CC is distributed in the hope that it will be useful,
  13 ;  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 ;  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 ;  GNU General Public License for more details.
  16
  17 ; In addition to the permissions in the GNU General Public License, the
  18 ; Free Software Foundation gives you unlimited permission to link the
  19 ; compiled version of this file with other programs, and to distribute
  20 ; those programs without any restriction coming from the use of this
  21 ; file.  (The General Public License restrictions do apply in other
  22 ; respects; for example, they cover modification of the file, and
  23 ; distribution when not linked into another program.)
  24
  25 ;  You should have received a copy of the GNU General Public License
  26 ;  along with GNU CC; see the file COPYING.  If not, write to
  27 ;  the Free Software Foundation, 59 Temple Place - Suite 330,
  28 ;  Boston, MA 02111-1307, USA.
  29
  30         .SPACE $PRIVATE$
  31         .SUBSPA $DATA$,QUAD=1,ALIGN=8,ACCESS=31
  32         .SUBSPA $BSS$,QUAD=1,ALIGN=8,ACCESS=31,ZERO,SORT=82
  33         .SPACE $TEXT$
  34         .SUBSPA $LIT$,QUAD=0,ALIGN=8,ACCESS=44
  35         .SUBSPA $CODE$,QUAD=0,ALIGN=8,ACCESS=44,CODE_ONLY
  36         .SUBSPA $MILLICODE$,QUAD=0,ALIGN=8,ACCESS=44,SORT=8
  37
  38         .IMPORT $$dyncall,MILLICODE
  39 ; gcc_compiled.:
  40         .SPACE $TEXT$
  41         .SUBSPA $CODE$
  42
  43 ; Simply call with the address of the desired import stub in %r22 and
  44 ; arguments in the normal place (%r26-%r23 and stack slots).
  45 ;
  46         .align 4
  47         .EXPORT __gcc_plt_call,ENTRY,PRIV_LEV=3,RTNVAL=GR
  48 __gcc_plt_call
  49         .PROC
  50         .CALLINFO
  51         .ENTRY
  52         ; Our return address comes in %r31, not %r2!
  53         stw %r31,-8(%r30)
  54
  55         ; An inline version of dyncall so we don't have to worry
  56         ; about long calls to millicode, PIC and other complexities.
  57         bb,>=,n %r22,30,L$foo
  58         depi 0,31,2,%r22
  59         ldw 4(%r22),%r19
  60         ldw 0(%r22),%r22
  61 L$foo
  62         ldsid (%r22),%r1
  63         mtsp %r1,%sr0
  64         ble 0(%sr0,%r22)
  65         copy %r31,%r2
  66         ldw -8(%r30),%r2
  67
  68         ; We're going to be returning to a stack address, so we
  69         ; need to do an intra-space return.
  70         ldsid (%rp),%r1
  71         mtsp %r1,%sr0
  72         be,n 0(%sr0,%rp)
  73         .EXIT
  74         .PROCEND