Artifact cc0359ce26e036d2e887d741d9cf3525c852fc68835fe888285428b209e01963:
- File
src/forwarding/apple-forwarding-x86.S
— part of check-in
[de552578e7]
at
2024-02-26 20:32:55
on branch 1.0
— Use <cet.h> and _CET_ENDBR macro
This only uses endbr32/endbr64 when actually needed and emits the
necessary .note.gnu.property. (user: js, size: 2449) [annotate] [blame] [check-ins using] [more...]
/* * Copyright (c) 2008-2024 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" #ifdef HAVE_CET_H # include <cet.h> #else # define _CET_ENDBR #endif .globl _OFForward .globl _OFForward_stret .section __TEXT, __cstring, cstring_literals str_forwardingTargetForSelector_: .asciz "forwardingTargetForSelector:" .section __OBJC, __message_refs, literal_pointers, no_dead_strip sel_forwardingTargetForSelector_: .long str_forwardingTargetForSelector_ .section __OBJC, __image_info .long 0, 0 .section __TEXT, __text, regular, pure_instructions _OFForward: _CET_ENDBR pushl %ebp movl %esp, %ebp pushl %ebx subl $20, %esp call get_eip 0: movl 8(%ebp), %eax movl %eax, (%esp) call _object_getClass movl %eax, (%esp) movl sel_forwardingTargetForSelector_-0b(%ebx), %eax movl %eax, 4(%esp) call _class_respondsToSelector testl %eax, %eax jz 0f movl 8(%ebp), %eax movl %eax, (%esp) movl sel_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: _CET_ENDBR pushl %ebp movl %esp, %ebp pushl %ebx subl $20, %esp call get_eip 0: movl 12(%ebp), %eax movl %eax, (%esp) call _object_getClass movl %eax, (%esp) movl sel_forwardingTargetForSelector_-0b(%ebx), %eax movl %eax, 4(%esp) call _class_respondsToSelector testl %eax, %eax jz 0f movl 12(%ebp), %eax movl %eax, (%esp) movl sel_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 get_eip: movl (%esp), %ebx ret