ObjFW  Diff

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/*
 * Copyright (c) 2008-2022 Jonathan Schleifer <js@nil.im>
 * 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.
 *
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.globl objc_msg_lookup_super
.globl objc_msg_lookup_super_stret

.section .text
.macro GENERATE_LOOKUP name notFound
\name:
	cmp	r0, #0
	beq	returnNilMethod
	beq	.LreturnNilMethod

	tst	r0, #1
	bne	.LtaggedPointer_\name

	ldr	r2, [r0, #0]
	ldr	r2, [r2, #32]

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.endm

.macro GENERATE_LOOKUP_SUPER name lookup
\name:
	mov	r2, r0
	ldr	r0, [r0, #0]
	cmp	r0, #0
	beq	returnNilMethod
	beq	.LreturnNilMethod

	ldr	r2, [r2, #4]
	ldr	r2, [r2, #32]

	b	.Lmain_\lookup
.type \name, %function
.size \name, .-\name
.endm

GENERATE_LOOKUP objc_msg_lookup objc_methodNotFound
GENERATE_LOOKUP objc_msg_lookup_stret objc_methodNotFound_stret
GENERATE_LOOKUP_SUPER objc_msg_lookup_super objc_msg_lookup
GENERATE_LOOKUP_SUPER objc_msg_lookup_super_stret objc_msg_lookup_stret

returnNilMethod:
	adr	r0, nilMethod
.LreturnNilMethod:
	adr	r0, .LnilMethod
	bx	lr

nilMethod:
.LnilMethod:
	mov	r0, #0
	bx	lr

#ifdef OF_LINUX
#if defined(OF_LINUX) || defined(OF_HAIKU) || defined(OF_HURD)
.section .note.GNU-stack, "", %progbits
#endif