ObjFW  Check-in [2fb21576da]

Overview
Comment:Convert lookup-asm-x86_64-win64.S to AT&T syntax

It was the last file that was still in Intel syntax.

This also fixes no longer being able to assemble it with newer versions
of MinGW-w64.

Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA3-256: 2fb21576dada5d23e64f4685f283345de72ad4c243ab9b871c93d59fd9f8f1ef
User & Date: js on 2021-03-14 23:54:45
Other Links: manifest | tags
Context
2021-03-16
21:16
OFASN1*: Clean up the API a little check-in: ca9b843d37 user: js tags: trunk
2021-03-14
23:54
Convert lookup-asm-x86_64-win64.S to AT&T syntax check-in: 2fb21576da user: js tags: trunk
18:55
ofhttp: Use "unnamed" if output name is nil or / check-in: 7b2c6a3873 user: js tags: trunk
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Modified src/runtime/lookup-asm/lookup-asm-x86_64-win64.S from [4b98720144] to [4686eccab8].

︙︙
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"

.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 not_found
\name:
	test	rcx, rcx
	jz	short ret_nil

	test	cl, 1
	jnz	short .Ltagged_pointer_\name

	mov	r8, [rcx]
	mov	r8, [r8+56]

.Lmain_\name:
	mov	r10, rcx
	mov	r11, rdx

	mov	rax, [rdx]
	movzx	ecx, ah
	movzx	edx, al
#ifdef OF_SELUID24
	shr	eax, 16

	mov	r8,  [r8+rax*8]
#endif
	mov	r8,  [r8+rcx*8]
	mov	rax, [r8+rdx*8]

	test	rax, rax
	jz	short 0f

	ret

0:
	mov	rcx, r10
	mov	rdx, r11
	jmp	\not_found

.Ltagged_pointer_\name:
	xor	rcx, objc_tagged_pointer_secret

	and	cl, 0xE
	movzx	r8, cl

	mov	r8, [objc_tagged_pointer_classes+r8*4]

	mov	r8, [r8+56]

	jmp	short .Lmain_\name
.endm

.macro generate_lookup_super name lookup
\name:
	mov	r8, rcx
	mov	rcx, [rcx]
	test	rcx, rcx
	jz	short ret_nil

	mov	r8, [r8+8]
	mov	r8, [r8+56]
	jmp	short .Lmain_\lookup
.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:
	mov	rax, offset nil_method
	ret

nil_method:
	xor	rax, rax
	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 not_found
\name:
	testq	%rcx, %rcx
	jz	ret_nil

	testb	$1, %cl
	jnz	.Ltagged_pointer_\name

	movq	(%rcx), %r8
	movq	56(%r8), %r8

.Lmain_\name:
	movq	%rcx, %r10
	movq	%rdx, %r11

	movq	(%rdx), %rax
	movzbl	%ah, %ecx
	movzbl	%al, %edx
#ifdef OF_SELUID24
	shrl	$16, %eax

	movq	(%r8,%rax,8), %r8
#endif
	movq	(%r8,%rcx,8), %r8
	movq	(%r8,%rdx,8), %rax

	testq	%rax, %rax
	jz	0f

	ret

0:
	movq	%r10, %rcx
	movq	%r11, %rdx
	jmp	\not_found

.Ltagged_pointer_\name:
	movq	objc_tagged_pointer_secret(%rip), %rax
	xorq	(%rax), %rcx
	andb	$0xE, %cl
	movzbl	%cl, %r8d

	movq	objc_tagged_pointer_classes(%rip), %rax
	movq	(%rax,%r8,4), %r8
	movq	56(%r8), %r8

	jmp	.Lmain_\name
.endm

.macro generate_lookup_super name lookup
\name:
	movq	%rcx, %r8
	movq	(%rcx), %rcx
	testq	%rcx, %rcx
	jz	ret_nil

	movq	8(%r8), %r8
	movq	56(%r8), %r8
	jmp	.Lmain_\lookup
.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:
	movq	nil_method(%rip), %rax
	ret

nil_method:
	xorq	%rax, %rax
	ret

Fossil 2.23 [47362306a7] 2023-11-01 18:56:47
This page was generated in about 0.015s