/*
* Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
*
* All rights reserved.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License version 3.0 only,
* as published by the Free Software Foundation.
*
* This program 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 Lesser General Public License
* version 3.0 for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* version 3.0 along with this program. If not, see
* <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "platform.h"
#ifdef HAVE_CET_H
# include <cet.h>
#else
# define _CET_ENDBR
#endif
.globl OFForward
.globl OFForward_stret
.section .text
OFForward:
_CET_ENDBR
pushl %ebp
movl %esp, %ebp
pushl %ebx
subl $20, %esp
call .LgetEIP
addl $_GLOBAL_OFFSET_TABLE_, %ebx
movl 8(%ebp), %eax
movl %eax, (%esp)
call object_getClass@PLT
movl %eax, (%esp)
leal .Lsel_forwardingTargetForSelector_@GOTOFF(%ebx), %eax
movl %eax, 4(%esp)
call class_respondsToSelector@PLT
testl %eax, %eax
jz 0f
movl 8(%ebp), %eax
movl %eax, (%esp)
leal .Lsel_forwardingTargetForSelector_@GOTOFF(%ebx), %eax
movl %eax, 4(%esp)
call objc_msg_lookup@PLT
movl 8(%ebp), %edx
movl %edx, (%esp)
leal .Lsel_forwardingTargetForSelector_@GOTOFF(%ebx), %edx
movl %edx, 4(%esp)
movl 12(%ebp), %edx
movl %edx, 8(%esp)
call *%eax
testl %eax, %eax
jz 0f
cmpl 8(%ebp), %eax
je 0f
movl %eax, 8(%ebp)
movl %eax, (%esp)
movl 12(%ebp), %eax
movl %eax, 4(%esp)
call objc_msg_lookup@PLT
addl $20, %esp
popl %ebx
popl %ebp
jmp *%eax
0:
movl OFMethodNotFound@GOT(%ebx), %eax
addl $20, %esp
popl %ebx
popl %ebp
jmp *%eax
.type OFForward, %function
.size OFForward, .-OFForward
OFForward_stret:
_CET_ENDBR
pushl %ebp
movl %esp, %ebp
pushl %ebx
subl $20, %esp
call .LgetEIP
addl $_GLOBAL_OFFSET_TABLE_, %ebx
movl 12(%ebp), %eax
movl %eax, (%esp)
call object_getClass@PLT
movl %eax, (%esp)
leal .Lsel_forwardingTargetForSelector_@GOTOFF(%ebx), %eax
movl %eax, 4(%esp)
call class_respondsToSelector@PLT
testl %eax, %eax
jz 0f
movl 12(%ebp), %eax
movl %eax, (%esp)
leal .Lsel_forwardingTargetForSelector_@GOTOFF(%ebx), %eax
movl %eax, 4(%esp)
call objc_msg_lookup@PLT
movl 12(%ebp), %edx
movl %edx, (%esp)
leal .Lsel_forwardingTargetForSelector_@GOTOFF(%ebx), %edx
movl %edx, 4(%esp)
movl 16(%ebp), %edx
movl %edx, 8(%esp)
call *%eax
testl %eax, %eax
jz 0f
cmpl 12(%ebp), %eax
je 0f
movl %eax, 12(%ebp)
movl %eax, (%esp)
movl 16(%ebp), %eax
movl %eax, 4(%esp)
call objc_msg_lookup_stret@PLT
addl $20, %esp
popl %ebx
popl %ebp
jmp *%eax
0:
movl OFMethodNotFound_stret@GOT(%ebx), %eax
addl $20, %esp
popl %ebx
popl %ebp
jmp *%eax
.type OFForward_stret, %function
.size OFForward_stret, .-OFForward_stret
.Linit:
_CET_ENDBR
pushl %ebp
movl %esp, %ebp
pushl %ebx
subl $4, %esp
call .LgetEIP
addl $_GLOBAL_OFFSET_TABLE_, %ebx
leal .Lmodule@GOTOFF(%ebx), %eax
movl %eax, (%esp)
call __objc_exec_class@PLT
addl $4, %esp
popl %ebx
popl %ebp
ret
.LgetEIP:
movl (%esp), %ebx
ret
#ifdef OF_SOLARIS
.section .init_array, "aw"
#else
.section .ctors, "aw", %progbits
#endif
.long .Linit
.section .rodata
.Lstr_forwardingTargetForSelector_:
.asciz "forwardingTargetForSelector:"
.section .data
.Lsel_forwardingTargetForSelector_:
.long .Lstr_forwardingTargetForSelector_, 0
.long 0, 0
.Lsymtab:
.long 0, .Lsel_forwardingTargetForSelector_
.short 0, 0
.long 0
.long 0
.Lmodule:
.long 8, 16, 0, .Lsymtab
#if defined(OF_LINUX) || defined(OF_HAIKU) || defined(OF_HURD)
.section .note.GNU-stack, "", %progbits
#endif