Artifact 8d690ddaf55643ef53d777deafd4b7419bad09d0813143a946ed48e43bdae90e:
- File
src/forwarding/apple-forwarding-x86.S
— part of check-in
[22e2cd67a2]
at
2023-10-31 23:14:36
on branch trunk
— Move x86/Mach-O assembly back to AT&T syntax
Support for the Intel syntax is too buggy in toolchains to be usable. (user: js, size: 2360) [annotate] [blame] [check-ins using]
/* * Copyright (c) 2008-2023 Jonathan Schleifer <js@nil.im> * * 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" .globl _OFForward .globl _OFForward_stret .section __TEXT, __cstring, cstring_literals Lstr_forwardingTargetForSelector_: .asciz "forwardingTargetForSelector:" .section __OBJC, __message_refs, literal_pointers, no_dead_strip Lsel_forwardingTargetForSelector_: .long Lstr_forwardingTargetForSelector_ .section __OBJC, __image_info .long 0, 0 .section __TEXT, __text, regular, pure_instructions _OFForward: pushl %ebp movl %esp, %ebp pushl %ebx subl $20, %esp call LgetEIP 0: movl 8(%ebp), %eax movl %eax, (%esp) call _object_getClass movl %eax, (%esp) movl Lsel_forwardingTargetForSelector_-0b(%ebx), %eax movl %eax, 4(%esp) call _class_respondsToSelector testl %eax, %eax jz 0f movl 8(%ebp), %eax movl %eax, (%esp) movl Lsel_forwardingTargetForSelector_-0b(%ebx), %eax movl %eax, 4(%esp) movl 12(%ebp), %eax movl %eax, 8(%esp) call _objc_msgSend testl %eax, %eax jz 0f cmpl 8(%ebp), %eax je 0f movl %eax, 8(%ebp) addl $20, %esp popl %ebx popl %ebp jmp _objc_msgSend 0: addl $20, %esp popl %ebx popl %ebp jmp _OFMethodNotFound _OFForward_stret: pushl %ebp movl %esp, %ebp pushl %ebx subl $20, %esp call LgetEIP 0: movl 12(%ebp), %eax movl %eax, (%esp) call _object_getClass movl %eax, (%esp) movl Lsel_forwardingTargetForSelector_-0b(%ebx), %eax movl %eax, 4(%esp) call _class_respondsToSelector testl %eax, %eax jz 0f movl 12(%ebp), %eax movl %eax, (%esp) movl Lsel_forwardingTargetForSelector_-0b(%ebx), %eax movl %eax, 4(%esp) movl 16(%ebp), %eax movl %eax, 8(%esp) call _objc_msgSend testl %eax, %eax jz 0f cmpl 12(%ebp), %eax je 0f movl %eax, 12(%ebp) addl $20, %esp popl %ebx popl %ebp jmp _objc_msgSend_stret 0: addl $20, %esp popl %ebx popl %ebp jmp _OFMethodNotFound_stret LgetEIP: movl (%esp), %ebx ret