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 * 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"

.intel_syntax noprefix

.globl _of_forward
.globl _of_forward_stret
.globl _OFForward
.globl _OFForward_stret

.section .text
_of_forward:
	push	ebp
	mov	ebp, esp
_OFForward:
	pushl	%ebp
	movl	%esp, %ebp

	push	ebx
	sub	esp, 20
	pushl	%ebx
	subl	$20, %esp

	mov	eax, [ebp+8]
	mov	[esp], eax
	movl	8(%ebp), %eax
	movl	%eax, (%esp)
	call	_object_getClass

	mov	[esp], eax
	mov	eax, offset sel_forwardingTargetForSelector_
	mov	[esp+4], eax
	movl	%eax, (%esp)
	movl	$sel_forwardingTargetForSelector_, %eax
	movl	%eax, 4(%esp)
	call	_class_respondsToSelector

	test	eax, eax
	jz	short 0f
	testl	%eax, %eax
	jz	0f

	mov	eax, [ebp+8]
	mov	[esp], eax
	mov	eax, offset sel_forwardingTargetForSelector_
	mov	[esp+4], eax
	movl	8(%ebp), %eax
	movl	%eax, (%esp)
	movl	$sel_forwardingTargetForSelector_, %eax
	movl	%eax, 4(%esp)
	call	_objc_msg_lookup

	mov	edx, [ebp+8]
	mov	[esp], edx
	mov	edx, offset sel_forwardingTargetForSelector_
	mov	[esp+4], edx
	mov	edx, [ebp+12]
	mov	[esp+8], edx
	call	eax
	movl	8(%ebp), %edx
	movl	%edx, (%esp)
	movl	$sel_forwardingTargetForSelector_, %edx
	movl	%edx, 4(%esp)
	movl	12(%ebp), %edx
	movl	%edx, 8(%esp)
	call	*%eax

	test	eax, eax
	jz	short 0f
	cmp	eax, [ebp+8]
	je	short 0f
	testl	%eax, %eax
	jz	0f
	cmpl	8(%ebp), %eax
	je	0f

	mov	[ebp+8], eax
	mov	[esp], eax
	mov	eax, [ebp+12]
	mov	[esp+4], eax
	movl	%eax, 8(%ebp)
	movl	%eax, (%esp)
	movl	12(%ebp), %eax
	movl	%eax, 4(%esp)
	call	_objc_msg_lookup

	add	esp, 20
	pop	ebx
	pop	ebp
	addl	$20, %esp
	popl	%ebx
	popl	%ebp

	jmp	eax
	jmp	*%eax

0:
	add	esp, 20
	pop	ebx
	pop	ebp
	addl	$20, %esp
	popl	%ebx
	popl	%ebp

	jmp	_of_method_not_found
	jmp	_OFMethodNotFound
.def _OFForward
.scl 2
.type 32
.endef

_of_forward_stret:
	push	ebp
	mov	ebp, esp

_OFForward_stret:
	pushl	%ebp
	movl	%esp, %ebp

	pushl	%ebx
	subl	$20, %esp
	push	ebx
	sub	esp, 20

	mov	eax, [ebp+12]
	mov	[esp], eax
	movl	12(%ebp), %eax
	movl	%eax, (%esp)
	call	_object_getClass

	mov	[esp], eax
	mov	eax, offset sel_forwardingTargetForSelector_
	mov	[esp+4], eax
	movl	%eax, (%esp)
	movl	$sel_forwardingTargetForSelector_, %eax
	movl	%eax, 4(%esp)
	call	_class_respondsToSelector

	test	eax, eax
	jz	short 0f
	testl	%eax, %eax
	jz	0f

	mov	eax, [ebp+12]
	mov	[esp], eax
	mov	eax, offset sel_forwardingTargetForSelector_
	mov	[esp+4], eax
	movl	12(%ebp), %eax
	movl	%eax, (%esp)
	movl	$sel_forwardingTargetForSelector_, %eax
	movl	%eax, 4(%esp)
	call	_objc_msg_lookup

	mov	edx, [ebp+12]
	mov	[esp], edx
	mov	edx, offset sel_forwardingTargetForSelector_
	mov	[esp+4], edx
	mov	edx, [ebp+16]
	mov	[esp+8], edx
	call	eax
	movl	12(%ebp), %edx
	movl	%edx, (%esp)
	movl	$sel_forwardingTargetForSelector_, %edx
	movl	%edx, 4(%esp)
	movl	16(%ebp), %edx
	movl	%edx, 8(%esp)
	call	*%eax

	test	eax, eax
	jz	short 0f
	cmp	eax, [ebp+12]
	je	short 0f

	testl	%eax, %eax
	jz	0f
	cmpl	12(%ebp), %eax
	je	0f

	movl	%eax, 12(%ebp)
	movl	%eax, (%esp)
	movl	16(%ebp), %eax
	mov	[ebp+12], eax
	mov	[esp], eax
	mov	eax, [ebp+16]
	movl	%eax, 4(%esp)
	mov	[esp+4], eax
	call	_objc_msg_lookup_stret

	add	esp, 20
	pop	ebx
	pop	ebp
	addl	$20, %esp
	popl	%ebx
	popl	%ebp

	jmp	eax
	jmp	*%eax

0:
	add	esp, 20
	pop	ebx
	pop	ebp
	addl	$20, %esp
	popl	%ebx
	popl	%ebp

	jmp	_of_method_not_found_stret
	jmp	_OFMethodNotFound_stret
.def _OFForward_stret
.scl 2
.type 32
.endef

init:
	push	ebp
	mov	ebp, esp
	pushl	%ebp
	movl	%esp, %ebp

	push	ebx
	sub	esp, 4
	pushl	%ebx
	subl	$4, %esp

	mov	eax, offset module
	mov	[esp], eax
	movl	$module, %eax
	movl	%eax, (%esp)
	call	___objc_exec_class

	add	esp, 4
	pop	ebx
	pop	ebp
	addl	$4, %esp
	popl	%ebx
	popl	%ebp
	ret

.section .ctors, "aw"
	.long init

.section .rodata
str_forwardingTargetForSelector_: