/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
* 2018
* Jonathan Schleifer <js@heap.zone>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#include "config.h"
#include "platform.h"
.globl of_forward
.globl of_forward_stret
.section .text
of_forward:
pushl %ebp
movl %esp, %ebp
pushl %ebx
subl $20, %esp
call get_eip
0:
addl $_GLOBAL_OFFSET_TABLE_, %ebx
movl 8(%ebp), %eax
movl %eax, (%esp)
movl object_getClass@GOT(%ebx), %eax
call *%eax
movl %eax, (%esp)
leal sel_forwardingTargetForSelector_@GOTOFF(%ebx), %eax
movl %eax, 4(%esp)
movl class_respondsToSelector@GOT(%ebx), %eax
call *%eax
testl %eax, %eax
jz 1f
movl 8(%ebp), %eax
movl %eax, (%esp)
leal sel_forwardingTargetForSelector_@GOTOFF(%ebx), %eax
movl %eax, 4(%esp)
movl objc_msg_lookup@GOT(%ebx), %eax
call *%eax
movl 8(%ebp), %edx
movl %edx, (%esp)
leal sel_forwardingTargetForSelector_@GOTOFF(%ebx), %edx
movl %edx, 4(%esp)
movl 12(%ebp), %edx
movl %edx, 8(%esp)
call *%eax
testl %eax, %eax
jz 1f
cmpl 8(%ebp), %eax
je 1f
movl %eax, 8(%ebp)
movl %eax, (%esp)
movl 12(%ebp), %eax
movl %eax, 4(%esp)
movl objc_msg_lookup@GOT(%ebx), %eax
call *%eax
addl $20, %esp
popl %ebx
popl %ebp
jmp *%eax
1:
movl of_method_not_found@GOT(%ebx), %eax
addl $20, %esp
popl %ebx
popl %ebp
jmp *%eax
.type of_forward, %function
.size of_forward, .-of_forward
of_forward_stret:
pushl %ebp
movl %esp, %ebp
pushl %ebx
subl $20, %esp
call get_eip
0:
addl $_GLOBAL_OFFSET_TABLE_, %ebx
movl 12(%ebp), %eax
movl %eax, (%esp)
movl object_getClass@GOT(%ebx), %eax
call *%eax
movl %eax, (%esp)
leal sel_forwardingTargetForSelector_@GOTOFF(%ebx), %eax
movl %eax, 4(%esp)
movl class_respondsToSelector@GOT(%ebx), %eax
call *%eax
testl %eax, %eax
jz 1f
movl 12(%ebp), %eax
movl %eax, (%esp)
leal sel_forwardingTargetForSelector_@GOTOFF(%ebx), %eax
movl %eax, 4(%esp)
movl objc_msg_lookup@GOT(%ebx), %eax
call *%eax
movl 12(%ebp), %edx
movl %edx, (%esp)
leal sel_forwardingTargetForSelector_@GOTOFF(%ebx), %edx
movl %edx, 4(%esp)
movl 16(%ebp), %edx
movl %edx, 8(%esp)
call *%eax
testl %eax, %eax
jz 1f
cmpl 12(%ebp), %eax
je 1f
movl %eax, 12(%ebp)
movl %eax, (%esp)
movl 16(%ebp), %eax
movl %eax, 4(%esp)
movl objc_msg_lookup_stret@GOT(%ebx), %eax
call *%eax
addl $20, %esp
popl %ebx
popl %ebp
jmp *%eax
1:
movl of_method_not_found_stret@GOT(%ebx), %eax
addl $20, %esp
popl %ebx
popl %ebp
jmp *%eax
.type of_forward_stret, %function
.size of_forward_stret, .-of_forward_stret
init:
pushl %ebp
movl %esp, %ebp
pushl %ebx
subl $4, %esp
call get_eip
0:
add $_GLOBAL_OFFSET_TABLE_, %ebx
leal module@GOTOFF(%ebx), %eax
movl %eax, (%esp)
movl __objc_exec_class@GOT(%ebx), %eax
call *%eax
addl $4, %esp
popl %ebx
popl %ebp
ret
get_eip:
movl (%esp), %ebx
ret
.section .ctors, "aw", %progbits
.long init
.section .rodata
str_forwardingTargetForSelector_:
.asciz "forwardingTargetForSelector:"
.section .data
sel_forwardingTargetForSelector_:
.long str_forwardingTargetForSelector_, 0
.long 0, 0
symtab:
.long 0, sel_forwardingTargetForSelector_
.short 0, 0
.long 0
.long 0
module:
.long 8, 16, 0, symtab
#ifdef OF_LINUX
.section .note.GNU-stack, "", %progbits
#endif