/*      $NetBSD: crtbegin.S,v 1.2 2010/11/30 18:37:59 joerg Exp $       */
/*-
 * Copyright (c) 2010 Joerg Sonnenberger <joerg@NetBSD.org>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <machine/asm.h>

RCSID("$NetBSD: crtbegin.S,v 1.2 2010/11/30 18:37:59 joerg Exp $")

        .section        .ctors, "aw", @progbits
        .align 8
__CTOR_LIST__:
        .quad -1

        .section        .dtors, "aw", @progbits
        .align 8
__DTOR_LIST__:
        .quad -1

        .section        .eh_frame, "a", @progbits
        .align 8
__EH_FRAME_LIST__:

        .section        .jcr, "aw", @progbits
        .align 8
__JCR_LIST__:

        .section        .data.rel, "aw", @progbits
        .align 8
        .type   __dso_handle, @object
        .size   __dso_handle, 8
        .globl  __dso_handle
        .hidden __dso_handle
__dso_handle:
#ifdef SHARED
        .quad   __dso_handle
#else
        .quad   0
#endif

__dwarf_eh_object:
        .zero   64

__initialized:
        .zero   1
__finished:
        .zero   1

        .text
        .weak   __cxa_finalize
        .weak   __deregister_frame_info
        .weak   __register_frame_info
        .weak   _Jv_RegisterClasses

__do_global_dtors_aux:
        cmpb    $0, __finished(%rip)
        je      1f
        ret
1:
        pushq   %rbx
        movb    $1, __finished(%rip)


#ifdef SHARED
        cmpq    $0, __cxa_finalize@GOTPCREL(%rip)
        je      2f
        movq    __dso_handle(%rip), %rdi
        call    __cxa_finalize@PLT
2:
#endif

        leaq    8+__DTOR_LIST__(%rip), %rbx
3:
        movq    (%rbx), %rax
        testq   %rax, %rax
        je      4f
        call    *%rax
        addq    $8, %rbx
        jmp     3b      
4:

        cmpq    $0, __deregister_frame_info@GOTPCREL(%rip)
        je      5f
        leaq    __EH_FRAME_LIST__(%rip), %rdi
        call    __deregister_frame_info@PLT
5:
        popq    %rbx
        ret


__do_global_ctors_aux:
        cmpb    $0, __initialized(%rip)
        je      1f
        ret
1:
        pushq   %rbx
        movb    $1, __initialized(%rip)

        cmpq    $0, __register_frame_info@GOTPCREL(%rip)
        je      2f
        leaq    __dwarf_eh_object(%rip), %rsi
        leaq    __EH_FRAME_LIST__(%rip), %rdi
        call    __register_frame_info@PLT

2:
        cmpq    $0, _Jv_RegisterClasses@GOTPCREL(%rip)
        je      3f
        leaq    __JCR_LIST__(%rip), %rdi
        cmpq    $0, (%rdi)
        je      3f
        call    _Jv_RegisterClasses@PLT
3:

        leaq    -8+__CTOR_LIST_END__(%rip), %rbx
4:
        movq    (%rbx), %rax
        cmpq    $-1, %rax
        je      5f
        call    *%rax
        subq    $8, %rbx
        jmp     4b

5:
        popq    %rbx

        ret

        .section        .init, "ax", @progbits
        call    __do_global_ctors_aux
        .section        .fini, "ax", @progbits
        call    __do_global_dtors_aux