Retro68/gcc/libgcc/config/pa/lib2funcs.S
2014-09-21 19:33:12 +02:00

75 lines
2.3 KiB
ArmAsm

; Subroutines for calling unbound dynamic functions from within GDB for HPPA.
; Subroutines for out of line prologues and epilogues on for the HPPA
; Copyright (C) 1994-2014 Free Software Foundation, Inc.
; This file is part of GCC.
; GCC is free software; you can redistribute it and/or modify
; it under the terms of the GNU General Public License as published by
; the Free Software Foundation; either version 3, or (at your option)
; any later version.
; GCC is distributed in the hope that it will be useful,
; but WITHOUT ANY WARRANTY; without even the implied warranty of
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
; GNU General Public License for more details.
; Under Section 7 of GPL version 3, you are granted additional
; permissions described in the GCC Runtime Library Exception, version
; 3.1, as published by the Free Software Foundation.
; You should have received a copy of the GNU General Public License and
; a copy of the GCC Runtime Library Exception along with this program;
; see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
; <http://www.gnu.org/licenses/>.
#if !defined(__pro__) && !defined(__rtems__)
.SPACE $PRIVATE$
.SUBSPA $DATA$,QUAD=1,ALIGN=8,ACCESS=31
.SUBSPA $BSS$,QUAD=1,ALIGN=8,ACCESS=31,ZERO,SORT=82
.SPACE $TEXT$
.SUBSPA $LIT$,QUAD=0,ALIGN=8,ACCESS=44
.SUBSPA $CODE$,QUAD=0,ALIGN=8,ACCESS=44,CODE_ONLY
.SUBSPA $MILLICODE$,QUAD=0,ALIGN=8,ACCESS=44,SORT=8
#endif
.IMPORT $$dyncall,MILLICODE
#if !defined(__pro__) && !defined(__rtems__)
.SPACE $TEXT$
.SUBSPA $CODE$
#else
.text
#endif
; Simply call with the address of the desired import stub in %r22 and
; arguments in the normal place (%r26-%r23 and stack slots).
;
.align 4
.EXPORT __gcc_plt_call,ENTRY,PRIV_LEV=3,RTNVAL=GR
__gcc_plt_call
.PROC
.CALLINFO
.ENTRY
; Our return address comes in %r31, not %r2!
stw %r31,-8(%r30)
; An inline version of dyncall so we don't have to worry
; about long calls to millicode, PIC and other complexities.
bb,>=,n %r22,30,L$foo
depi 0,31,2,%r22
ldw 4(%r22),%r19
ldw 0(%r22),%r22
L$foo
ldsid (%r22),%r1
mtsp %r1,%sr0
ble 0(%sr0,%r22)
copy %r31,%r2
ldw -8(%r30),%r2
; We're going to be returning to a stack address, so we
; need to do an intra-space return.
ldsid (%rp),%r1
mtsp %r1,%sr0
be,n 0(%sr0,%rp)
.EXIT
.PROCEND