/* $NetBSD: crtbegin.S,v 1.1 2010/08/07 18:01:33 joerg Exp $ */
/*-
* Copyright (c) 2010 Joerg Sonnenberger <
[email protected]>
* 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 1.1 2010/08/07 18:01:33 joerg Exp $")
.section .ctors, "aw", @progbits
.align 4
__CTOR_LIST__:
.long -1
.section .dtors, "aw", @progbits
.align 4
__DTOR_LIST__:
.long -1
.section .eh_frame, "a", @progbits
.align 4
__EH_FRAME_LIST__:
.section .jcr, "aw", @progbits
.align 4
__JCR_LIST__:
.section .data.rel, "aw", @progbits
.align 4
.type __dso_handle, @object
.size __dso_handle, 4
.globl __dso_handle
.hidden __dso_handle
__dso_handle:
#ifdef SHARED
.long __dso_handle
#else
.long 0
#endif
__dwarf_eh_object:
.zero 32
__initialized:
.zero 1
__finished:
.zero 1
.text
.weak __cxa_finalize
.weak __deregister_frame_info
.weak __register_frame_info
.weak _Jv_RegisterClasses
__get_thunk:
movl (%esp), %ebx
ret
__do_global_dtors_aux:
pushl %ebx
pushl %edi
subl $8, %esp
call __get_thunk
addl $_GLOBAL_OFFSET_TABLE_, %ebx
cmpb $0, __finished@GOTOFF(%ebx)
jne 4f
movb $1, __finished@GOTOFF(%ebx)
#ifdef SHARED
cmpl $0, __cxa_finalize@GOT(%ebx)
je 1f
movl __dso_handle@GOTOFF(%ebx), %eax
movl %eax, (%esp)
call __cxa_finalize@PLT
1:
#endif
leal 4+__DTOR_LIST__@GOTOFF(%ebx), %edi
2:
movl (%edi), %eax
testl %eax, %eax
je 3f
call *%eax
addl $8, %edi
jmp 2b
3:
cmpl $0, __deregister_frame_info@GOT(%ebx)
je 4f
leal __EH_FRAME_LIST__@GOTOFF(%ebx), %eax
movl %eax, (%esp)
call __deregister_frame_info@PLT
4:
addl $8, %esp
popl %edi
popl %ebx
ret
__do_global_ctors_aux:
pushl %ebx
pushl %edi
subl $8, %esp
call __get_thunk
addl $_GLOBAL_OFFSET_TABLE_, %ebx
cmpb $0, __initialized@GOTOFF(%ebx)
jne 4f
movb $1, __initialized@GOTOFF(%ebx)
cmpl $0, __register_frame_info@GOT(%ebx)
je 1f
leal __dwarf_eh_object@GOTOFF(%ebx), %edi
movl %edi, 4(%esp)
leal __EH_FRAME_LIST__@GOTOFF(%ebx), %edi
movl %edi, (%esp)
call __register_frame_info@PLT
1:
cmpl $0, _Jv_RegisterClasses@GOT(%ebx)
je 2f
leal __JCR_LIST__@GOTOFF(%ebx), %edi
movl (%edi), %edi
testl %edi, %edi
je 2f
movl %edi, (%esp)
call _Jv_RegisterClasses@PLT
2:
leal -4+__CTOR_LIST_END__@GOTOFF(%ebx), %edi
3:
movl (%edi), %eax
cmpl $-1, %eax
je 4f
call *%eax
subl $4, %edi
jmp 3b
4:
addl $8, %esp
popl %edi
popl %ebx
ret
.section .init, "ax", @progbits
call __do_global_ctors_aux
.section .fini, "ax", @progbits
call __do_global_dtors_aux
