/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012
* Jonathan Schleifer <js@webkeks.org>
*
* 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.
*/
.globl _of_forward
.globl _of_forward_stret
.section __TEXT, __objc_methname, cstring_literals
L_str_forwardingTargetForSelector:
.asciz "forwardingTargetForSelector:"
.section __DATA, __objc_selrefs, literal_pointers, no_dead_strip
L_sel_forwardingTargetForSelector:
.quad L_str_forwardingTargetForSelector
.section __DATA, __objc_imageinfo, regular, no_dead_strip
.long 0, 0
.section __TEXT, __text, regular, pure_instructions
.macro forward dispatch_func
pushq %rbp
movq %rsp, %rbp
/* Save all arguments */
subq $0xC0, %rsp /* 16-byte alignment */
movq %rax, 0xA8(%rsp)
movq %rdi, 0xA0(%rsp)
movq %rsi, 0x98(%rsp)
movq %rdx, 0x90(%rsp)
movq %rcx, 0x88(%rsp)
movq %r8, 0x80(%rsp)
movq %r9, 0x78(%rsp)
movd %xmm0, 0x70(%rsp)
movd %xmm1, 0x60(%rsp)
movd %xmm2, 0x50(%rsp)
movd %xmm3, 0x40(%rsp)
movd %xmm4, 0x30(%rsp)
movd %xmm5, 0x20(%rsp)
movd %xmm6, 0x10(%rsp)
movd %xmm7, (%rsp)
call _object_getClass
movq %rax, %rdi
movq L_sel_forwardingTargetForSelector(%rip), %rsi
call _class_respondsToSelector
testq %rax, %rax
jz fail
movq 0xA0(%rsp), %rdi
movq L_sel_forwardingTargetForSelector(%rip), %rsi
movq 0x98(%rsp), %rdx
call \dispatch_func
movq %rax, %rdi
testq %rdi, %rdi
jz fail
cmpq 0xA0(%rsp), %rdi
je fail
/* Restore all arguments, except %rdi */
movd (%rsp), %xmm7
movd 0x10(%rsp), %xmm6
movd 0x20(%rsp), %xmm5
movd 0x30(%rsp), %xmm4
movd 0x40(%rsp), %xmm3
movd 0x50(%rsp), %xmm2
movd 0x60(%rsp), %xmm1
movd 0x70(%rsp), %xmm0
movq 0x78(%rsp), %r9
movq 0x80(%rsp), %r8
movq 0x88(%rsp), %rcx
movq 0x90(%rsp), %rdx
movq 0x98(%rsp), %rsi
movq 0xA8(%rsp), %rax
movq %rbp, %rsp
popq %rbp
jmp \dispatch_func
.endmacro
_of_forward:
forward _objc_msgSend
_of_forward_stret:
forward _objc_msgSend_stret
fail:
movq 0xA0(%rsp), %rdi
movq 0x98(%rsp), %rsi
movq %rbp, %rsp
popq %rbp
jmp _of_method_not_found