/*
* 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.
*/
#include "config.h"
.globl objc_msg_lookup
.globl objc_msg_lookup_super
.section .text
objc_msg_lookup:
cmpwi %r3, 0
beq ret_nil
lwz %r5, 0(%r3)
lwz %r5, 32(%r5)
lookup:
lbz %r6, 1(%r4)
lbz %r7, 2(%r4)
lbz %r8, 3(%r4)
slwi %r6, %r6, 2
slwi %r7, %r7, 2
slwi %r8, %r8, 2
lwzx %r5, %r5, %r6
lwzx %r5, %r5, %r7
lwzx %r5, %r5, %r8
cmpwi %r5, 0
beq forward
mr %r3, %r5
blr
forward:
b objc_not_found_handler@plt
objc_msg_lookup_super:
lwz %r5, 0(%r3)
cmpwi %r5, 0
beq ret_nil
lwz %r5, 4(%r3)
lwz %r5, 32(%r5)
b lookup
ret_nil:
mflr %r0
bl get_pc
mtlr %r0
.L1:
addi %r3, %r3, nil_method-.L1
blr
nil_method:
li %r3, 0
blr
get_pc:
mflr %r3
blr
.type objc_msg_lookup, @function
.type objc_msg_lookup_super, @function
.size objc_msg_lookup, forward-objc_msg_lookup
.size objc_msg_lookup_super, ret_nil-objc_msg_lookup_super