Subversion Repositories openrisc_2011-10-31

/* Copyright (C) 2000, 2001, 2003, 2005, 2009 Free Software Foundation, Inc.

   Contributed by Jes Sorensen, 

   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

   .  */

#include "auto-host.h"

.section .ctors,"aw","progbits"

        .align  8

__CTOR_END__:

        data8   0

.section .dtors,"aw","progbits"

        .align 8

__DTOR_END__:

        data8   0

.section .jcr,"aw","progbits"

        .align 8

__JCR_END__:

        data8   0

#ifdef HAVE_INITFINI_ARRAY

        .global __do_global_ctors_aux

        .hidden __do_global_ctors_aux

#else /* !HAVE_INITFINI_ARRAY */

/*

 * Fragment of the ELF _init routine that invokes our dtor cleanup.

 *

 * We make the call by indirection, because in large programs the

 * .fini and .init sections are not in range of the destination, and

 * we cannot allow the linker to insert a stub at the end of this

 * fragment of the _fini function.  Further, Itanium does not implement

 * the long branch instructions, and we do not wish every program to

 * trap to the kernel for emulation.

 *

 * Note that we require __do_global_ctors_aux to preserve the GP,

 * so that the next fragment in .fini gets the right value.

 */

.section .init,"ax","progbits"

        { .mlx

          movl r2 = @pcrel(__do_global_ctors_aux - 16)

        }

        { .mii

          mov r3 = ip

          ;;

          add r2 = r2, r3

          ;;

        }

        { .mib

          mov b6 = r2

          br.call.sptk.many b0 = b6

          ;;

        }

#endif /* !HAVE_INITFINI_ARRAY */

.text

        .align 32

        .proc __do_global_ctors_aux

__do_global_ctors_aux:

        .prologue

        /*

                for (loc0 = __CTOR_END__-1; *p != -1; --p)

                  (*p) ();

        */

        .save ar.pfs, r34

        alloc loc2 = ar.pfs, 0, 5, 0, 0

        movl loc0 = @gprel(__CTOR_END__ - 8)

        ;;

        add loc0 = loc0, gp

        ;;

        ld8 loc3 = [loc0], -8

        .save rp, loc1

        mov loc1 = rp

        .body

        ;;

        cmp.eq p6, p0 = -1, loc3

        mov loc4 = gp

(p6)    br.cond.spnt.few .exit

.loop:  ld8 r15 = [loc3], 8

        ;;

        ld8 gp = [loc3]

        mov b6 = r15

        ld8 loc3 = [loc0], -8

        nop 0

        br.call.sptk.many rp = b6

        ;;

        cmp.ne p6, p0 = -1, loc3

        nop 0

(p6)    br.cond.sptk.few .loop

.exit:  mov gp = loc3

        mov rp = loc1

        mov ar.pfs = loc2

        br.ret.sptk.many rp

        .endp __do_global_ctors_aux