/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014
* 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_stret
.globl objc_msg_lookup_super
.globl objc_msg_lookup_super_stret
.section .text
.macro generate_lookup name not_found
\name:
cmp %o0, 0
beq,a ret_nil
nop
ld [%o0], %o2
ld [%o2 + 32], %o2
.Lmain_\name:
#ifdef OF_SELUID24
ldub [%o1 + 1], %o3
#endif
ldub [%o1 + 2], %o4
ldub [%o1 + 3], %o5
#ifdef OF_SELUID24
sll %o3, 2, %o3
#endif
sll %o4, 2, %o4
sll %o5, 2, %o5
#ifdef OF_SELUID24
ld [%o2 + %o3], %o2
#endif
ld [%o2 + %o4], %o2
ld [%o2 + %o5], %o2
cmp %o2, 0
beq,a \not_found
nop
retl
mov %o2, %o0
.type \name, %function
.size \name, .-\name
.endm
.macro generate_lookup_super name lookup
\name:
ld [%o0], %o2
cmp %o2, 0
beq ret_nil
nop
ld [%o0 + 4], %o2
ba .Lmain_\lookup
ld [%o2 + 32], %o2
.type \name, %function
.size \name, .-\name
.endm
generate_lookup objc_msg_lookup objc_method_not_found
generate_lookup objc_msg_lookup_stret objc_method_not_found_stret
generate_lookup_super objc_msg_lookup_super objc_msg_lookup
generate_lookup_super objc_msg_lookup_super_stret objc_msg_lookup_stret
ret_nil:
#ifdef PIC
save
sethi %hi(_GLOBAL_OFFSET_TABLE_ - 4), %l7
call get_pc
add %l7, %lo(_GLOBAL_OFFSET_TABLE_ + 4), %l7
sethi %hi(nil_method), %i0
or %i0, %lo(nil_method), %i0
ld [%l7 + %i0], %i0
ret
restore
#else
sethi %hi(nil_method), %o0
retl
or %o0, %lo(nil_method), %o0
#endif
nil_method:
retl
set 0, %o0
#ifdef PIC
get_pc:
retl
add %o7, %l7, %l7
#endif
#ifdef __linux__
.section .note.GNU-stack, "", %progbits
#endif