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 ;  You should have received a copy of the GNU General Public License
  18 ;  along with GNU CC; see the file COPYING.  If not, write to
  19 ;  the Free Software Foundation, 59 Temple Place - Suite 330,
  20 ;  Boston, MA 02111-1307, USA.
  21
  22         .SPACE $PRIVATE$
  23         .SUBSPA $DATA$,QUAD=1,ALIGN=8,ACCESS=31
  24         .SUBSPA $BSS$,QUAD=1,ALIGN=8,ACCESS=31,ZERO,SORT=82
  25         .SPACE $TEXT$
  26         .SUBSPA $LIT$,QUAD=0,ALIGN=8,ACCESS=44
  27         .SUBSPA $CODE$,QUAD=0,ALIGN=8,ACCESS=44,CODE_ONLY
  28         .SUBSPA $MILLICODE$,QUAD=0,ALIGN=8,ACCESS=44,SORT=8
  29
  30         .IMPORT $$dyncall,MILLICODE
  31 ; gcc_compiled.:
  32         .SPACE $TEXT$
  33         .SUBSPA $CODE$
  34
  35 ; Simply call with the address of the desired import stub in %r22 and
  36 ; arguments in the normal place (%r26-%r23 and stack slots).
  37 ;
  38         .align 4
  39         .EXPORT __gcc_plt_call,ENTRY,PRIV_LEV=3,RTNVAL=GR
  40 __gcc_plt_call
  41         .PROC
  42         .CALLINFO
  43         .ENTRY
  44         ; Our return address comes in %r31, not %r2!
  45         stw %r31,-8(0,%r30)
  46
  47         ; An inline version of dyncall so we don't have to worry
  48         ; about long calls to millicode, PIC and other complexities.
  49         bb,>=,n %r22,30,L$foo
  50         depi 0,31,2,%r22
  51         ldw 4(%r22),%r19
  52         ldw 0(%r22),%r22
  53 L$foo
  54         ldsid (%r22),%r1
  55         mtsp %r1,%sr0
  56         ble 0(%sr0,%r22)
  57         copy %r31,%r2
  58         ldw -8(0,%r30),%r2
  59
  60         ; We're going to be returning to a stack address, so we
  61         ; need to do an intra-space return.
  62         ldsid (%rp),%r1
  63         mtsp %r1,%sr0
  64         be,n 0(%sr0,%rp)
  65         .EXIT
  66         .PROCEND