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 GCC.
   6
   7 ;  GCC 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 ;  GCC 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 into combinations with other programs,
  20 ;  and to distribute those combinations without any restriction coming
  21 ;  from the use of this file.  (The General Public License restrictions
  22 ;  do apply in other respects; for example, they cover modification of
  23 ;  the file, and distribution when not linked into a combine
  24 ;  executable.)
  25
  26 ;  You should have received a copy of the GNU General Public License
  27 ;  along with GCC; see the file COPYING.  If not, write to
  28 ;  the Free Software Foundation, 59 Temple Place - Suite 330,
  29 ;  Boston, MA 02111-1307, USA.
  30
  31 #if !defined(__pro__) && !defined(__rtems__)
  32         .SPACE $PRIVATE$
  33         .SUBSPA $DATA$,QUAD=1,ALIGN=8,ACCESS=31
  34         .SUBSPA $BSS$,QUAD=1,ALIGN=8,ACCESS=31,ZERO,SORT=82
  35         .SPACE $TEXT$
  36         .SUBSPA $LIT$,QUAD=0,ALIGN=8,ACCESS=44
  37         .SUBSPA $CODE$,QUAD=0,ALIGN=8,ACCESS=44,CODE_ONLY
  38         .SUBSPA $MILLICODE$,QUAD=0,ALIGN=8,ACCESS=44,SORT=8
  39 #endif
  40         .IMPORT $$dyncall,MILLICODE
  41 #if !defined(__pro__) && !defined(__rtems__)
  42         .SPACE $TEXT$
  43         .SUBSPA $CODE$
  44 #else
  45         .text
  46 #endif
  47
  48 ; Simply call with the address of the desired import stub in %r22 and
  49 ; arguments in the normal place (%r26-%r23 and stack slots).
  50 ;
  51         .align 4
  52         .EXPORT __gcc_plt_call,ENTRY,PRIV_LEV=3,RTNVAL=GR
  53 __gcc_plt_call
  54         .PROC
  55         .CALLINFO
  56         .ENTRY
  57         ; Our return address comes in %r31, not %r2!
  58         stw %r31,-8(%r30)
  59
  60         ; An inline version of dyncall so we don't have to worry
  61         ; about long calls to millicode, PIC and other complexities.
  62         bb,>=,n %r22,30,L$foo
  63         depi 0,31,2,%r22
  64         ldw 4(%r22),%r19
  65         ldw 0(%r22),%r22
  66 L$foo
  67         ldsid (%r22),%r1
  68         mtsp %r1,%sr0
  69         ble 0(%sr0,%r22)
  70         copy %r31,%r2
  71         ldw -8(%r30),%r2
  72
  73         ; We're going to be returning to a stack address, so we
  74         ; need to do an intra-space return.
  75         ldsid (%rp),%r1
  76         mtsp %r1,%sr0
  77         be,n 0(%sr0,%rp)
  78         .EXIT
  79         .PROCEND