ObjFW  Diff

Annotate Patch Unified Diff

Differences From Artifact [8858e35bdf]:

To Artifact [15ce3f96a4]:

︙︙
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98

 * 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 _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 notFound
\name:
	mov	edx, [esp + 4]
	test	edx, edx
	jz	.LreturnNilMethod

	test	dl, 1
	jnz	.LtaggedPointer_\name

	mov	edx, [edx]
	mov	edx, [edx + 32]

.Lmain_\name:
	mov	eax, [esp + 8]

#ifdef OF_SELUID24
	movzx	ecx, byte ptr [eax + 2]
	mov	edx, [edx + 4 * ecx]
#endif
	movzx	ecx, byte ptr [eax + 1]
	mov	edx, [edx + 4 * ecx]
	movzx	ecx, byte ptr [eax]
	mov	eax, [edx + 4 * ecx]

	test	eax, eax
	jz	\notFound

	ret

.LtaggedPointer_\name:
	xor	edx, _objc_taggedPointerSecret
	and	dl, 0xE
	movzx	edx, dl

	mov	edx, [_objc_taggedPointerClasses + 2 * edx]
	mov	edx, [edx + 32]

	jmp	.Lmain_\name
.def \name
.scl 2
.type 32
.endef
.endm

.macro GENERATE_LOOKUP_SUPER name lookup
\name:
	mov	edx, [esp + 4]
	mov	eax, [edx]
	test	eax, eax
	jz	.LreturnNilMethod

	mov	[esp + 4], eax
	mov	edx, [edx + 4]
	mov	edx, [edx + 32]
	jmp	.Lmain_\lookup
.def \name
.scl 2
.type 32
.endef
.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

.LreturnNilMethod:
	mov	eax, offset .LnilMethod
	ret

.LnilMethod:
	xor	eax, eax
	ret








<
<








|
|


|


|
|


|


|
|

|
|
|
|

|





|
|
|

|
|










|
|
|


|
|
|













|



|


11
12
13
14
15
16
17


18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96

 * 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 notFound
\name:
	movl	4(%esp), %edx
	testl	%edx, %edx
	jz	.LreturnNilMethod

	testb	$1, %dl
	jnz	.LtaggedPointer_\name

	movl	(%edx), %edx
	movl	32(%edx), %edx

.Lmain_\name:
	movl	8(%esp), %eax

#ifdef OF_SELUID24
	movzbl	2(%eax), %ecx
	movl	(%edx,%ecx,4), %edx
#endif
	movzbl	1(%eax), %ecx
	movl	(%edx,%ecx,4), %edx
	movzbl	(%eax), %ecx
	movl	(%edx,%ecx,4), %eax

	testl	%eax, %eax
	jz	\notFound

	ret

.LtaggedPointer_\name:
	xorl	_objc_taggedPointerSecret, %edx
	andb	$0xE, %dl
	movzbl	%dl, %edx

	movl	_objc_taggedPointerClasses(,%edx,2), %edx
	movl	32(%edx), %edx

	jmp	.Lmain_\name
.def \name
.scl 2
.type 32
.endef
.endm

.macro GENERATE_LOOKUP_SUPER name lookup
\name:
	movl	4(%esp), %edx
	movl	(%edx), %eax
	test	%eax, %eax
	jz	.LreturnNilMethod

	movl	%eax, 4(%esp)
	movl	4(%edx), %edx
	movl	32(%edx), %edx
	jmp	.Lmain_\lookup
.def \name
.scl 2
.type 32
.endef
.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

.LreturnNilMethod:
	movl	$.LnilMethod, %eax
	ret

.LnilMethod:
	xorl	%eax, %eax
	ret
Fossil 2.23 [47362306a7] 2023-11-01 18:56:47
This page was generated in about 0.014s