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
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
|
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
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
|
-
-
-
-
+
+
-
-
-
+
+
+
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
-
-
+
+
-
+
-
-
+
+
-
-
-
-
+
+
+
+
-
+
-
+
-
+
-
-
+
+
-
+
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
-
+
+
-
+
-
-
+
+
-
-
+
+
-
+
-
-
-
+
+
+
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
-
-
+
+
+
-
-
+
+
-
+
-
-
+
+
-
-
-
-
+
+
+
+
-
+
-
-
+
+
-
+
-
-
+
+
-
+
-
-
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
-
-
-
-
+
+
+
+
-
-
+
+
-
+
-
-
-
+
+
+
-
-
+
+
-
+
-
+
|
* file.
*/
#include "config.h"
#include "platform.h"
.intel_syntax noprefix
of_forward
.globl _of_forward_stret
_of_forward:
push rbp
mov rbp, rsp
_OFForward:
pushq %rbp
movq %rsp, %rbp
/* Save all arguments */
sub rsp, 0xC0 /* 16-byte alignment */
mov [rbp-0x08], rax
mov [rbp-0x10], rdi
mov [rbp-0x18], rsi
mov [rbp-0x20], rdx
mov [rbp-0x28], rcx
mov [rbp-0x30], r8
mov [rbp-0x38], r9
movaps [rbp-0x50], xmm0
movaps [rbp-0x60], xmm1
movaps [rbp-0x70], xmm2
movaps [rbp-0x80], xmm3
movaps [rbp-0x90], xmm4
movaps [rbp-0xA0], xmm5
movaps [rbp-0xB0], xmm6
subq $0xC0, %rsp /* 16-byte alignment */
movq %rax, -0x8(%rbp)
movq %rdi, -0x10(%rbp)
movq %rsi, -0x18(%rbp)
movq %rdx, -0x20(%rbp)
movq %rcx, -0x28(%rbp)
movq %r8, -0x30(%rbp)
movq %r9, -0x38(%rbp)
movaps %xmm0, -0x50(%rbp)
movaps %xmm1, -0x60(%rbp)
movaps %xmm2, -0x70(%rbp)
movaps %xmm3, -0x80(%rbp)
movaps %xmm4, -0x90(%rbp)
movaps %xmm5, -0xA0(%rbp)
movaps %xmm6, -0xB0(%rbp)
movaps %xmm7, -0xC0(%rbp)
movaps [rbp-0xC0], xmm7
mov rdi, rax
lea rsi, [rip+sel_forwardingTargetForSelector_]
movq %rax, %rdi
leaq sel_forwardingTargetForSelector_(%rip), %rsi
call _class_respondsToSelector
test rax, rax
testq %rax, %rax
jz 0f
mov rdi, [rbp-0x10]
lea rsi, [rip+sel_forwardingTargetForSelector_]
movq -0x10(%rbp), %rdi
leaq sel_forwardingTargetForSelector_(%rip), %rsi
call _objc_msg_lookup
mov rdi, [rbp-0x10]
lea rsi, [rip+sel_forwardingTargetForSelector_]
mov rdx, [rbp-0x18]
call rax
movq -0x10(%rbp), %rdi
leaq sel_forwardingTargetForSelector_(%rip), %rsi
movq -0x18(%rbp), %rdx
call *%rax
test rax, rax
testq %rax, %rax
jz 0f
cmp rax, [rbp-0x10]
cmpq -0x10(%rbp), %rax
je 0f
mov [rbp-0x10], rax
movq %rax, -0x10(%rbp)
mov rdi, rax
mov rsi, [rbp-0x18]
movq %rax, %rdi
movq -0x18(%rbp), %rsi
call _objc_msg_lookup
mov r11, rax
movq %rax, %r11
/* Restore all arguments */
movaps xmm7, [rbp-0xC0]
movaps xmm6, [rbp-0xB0]
movaps xmm5, [rbp-0xA0]
movaps xmm4, [rbp-0x90]
movaps xmm3, [rbp-0x80]
movaps xmm2, [rbp-0x70]
movaps xmm1, [rbp-0x60]
movaps xmm0, [rbp-0x50]
mov r9, [rbp-0x38]
mov r8, [rbp-0x30]
mov rcx, [rbp-0x28]
mov rdx, [rbp-0x20]
mov rsi, [rbp-0x18]
mov rdi, [rbp-0x10]
mov rax, [rbp-0x08]
movaps -0xC0(%rbp), %xmm7
movaps -0xB0(%rbp), %xmm6
movaps -0xA0(%rbp), %xmm5
movaps -0x90(%rbp), %xmm4
movaps -0x80(%rbp), %xmm3
movaps -0x70(%rbp), %xmm2
movaps -0x60(%rbp), %xmm1
movaps -0x50(%rbp), %xmm0
movq -0x38(%rbp), %r9
movq -0x30(%rbp), %r8
movq -0x28(%rbp), %rcx
movq -0x20(%rbp), %rdx
movq -0x18(%rbp), %rsi
movq -0x10(%rbp), %rdi
movq -0x8(%rbp), %rax
mov rsp, rbp
pop rbp
movq %rbp, %rsp
popq %rbp
jmp r11
jmpq *%r11
0:
mov rdi, [rbp-0x10]
mov rsi, [rbp-0x18]
movq -0x10(%rbp), %rdi
movq -0x18(%rbp), %rsi
mov rsp, rbp
pop rbp
movq %rbp, %rsp
popq %rbp
jmp _of_method_not_found
jmp _OFMethodNotFound
_of_forward_stret:
push rbp
mov rbp, rsp
_OFForward_stret:
pushq %rbp
movq %rsp, %rbp
/* Save all arguments */
sub rsp, 0xC0 /* 16-byte alignment */
mov [rbp-0x08], rax
mov [rbp-0x10], rdi
mov [rbp-0x18], rsi
mov [rbp-0x20], rdx
mov [rbp-0x28], rcx
mov [rbp-0x30], r8
mov [rbp-0x38], r9
movaps [rbp-0x50], xmm0
movaps [rbp-0x60], xmm1
movaps [rbp-0x70], xmm2
movaps [rbp-0x80], xmm3
movaps [rbp-0x90], xmm4
movaps [rbp-0xA0], xmm5
movaps [rbp-0xB0], xmm6
subq $0xC0, %rsp /* 16-byte alignment */
movq %rax, -0x8(%rbp)
movq %rdi, -0x10(%rbp)
movq %rsi, -0x18(%rbp)
movq %rdx, -0x20(%rbp)
movq %rcx, -0x28(%rbp)
movq %r8, -0x30(%rbp)
movq %r9, -0x38(%rbp)
movaps %xmm0, -0x50(%rbp)
movaps %xmm1, -0x60(%rbp)
movaps %xmm2, -0x70(%rbp)
movaps %xmm3, -0x80(%rbp)
movaps %xmm4, -0x90(%rbp)
movaps %xmm5, -0xA0(%rbp)
movaps %xmm6, -0xB0(%rbp)
movaps [rbp-0xC0], xmm7
mov rdi, rsi
mov rdi, rax
lea rsi, [rip+sel_forwardingTargetForSelector_]
movq %rax, %rdi
leaq sel_forwardingTargetForSelector_(%rip), %rsi
call _class_respondsToSelector
test rax, rax
testq %rax, %rax
jz 0f
mov rdi, [rbp-0x18]
lea rsi, [rip+sel_forwardingTargetForSelector_]
movq -0x18(%rbp), %rdi
leaq sel_forwardingTargetForSelector_(%rip), %rsi
call _objc_msg_lookup
mov rdi, [rbp-0x18]
lea rsi, [rip+sel_forwardingTargetForSelector_]
mov rdx, [rbp-0x20]
call rax
movq -0x18(%rbp), %rdi
leaq sel_forwardingTargetForSelector_(%rip), %rsi
movq -0x20(%rbp), %rdx
call *%rax
test rax, rax
testq %rax, %rax
jz 0f
cmp rax, [rbp-0x18]
je 0f
mov [rbp-0x18], rax
movq %rax, -0x18(%rbp)
mov rdi, rax
mov rsi, [rbp-0x20]
movq %rax, %rdi
movq -0x20(%rbp), %rsi
call _objc_msg_lookup_stret
mov r11, rax
movq %rax, %r11
/* Restore all arguments */
movaps xmm7, [rbp-0xC0]
movaps xmm6, [rbp-0xB0]
movaps xmm5, [rbp-0xA0]
movaps xmm4, [rbp-0x90]
movaps xmm3, [rbp-0x80]
movaps xmm2, [rbp-0x70]
movaps xmm1, [rbp-0x60]
movaps xmm0, [rbp-0x50]
mov r9, [rbp-0x38]
mov r8, [rbp-0x30]
mov rcx, [rbp-0x28]
movaps -0xC0(%rbp), %xmm7
movaps -0xB0(%rbp), %xmm6
movaps -0xA0(%rbp), %xmm5
movaps -0x90(%rbp), %xmm4
movaps -0x80(%rbp), %xmm3
movaps -0x70(%rbp), %xmm2
movaps -0x60(%rbp), %xmm1
movaps -0x50(%rbp), %xmm0
movq -0x38(%rbp), %r9
movq -0x30(%rbp), %r8
movq -0x28(%rbp), %rcx
mov rdx, [rbp-0x20]
mov rsi, [rbp-0x18]
mov rdi, [rbp-0x10]
mov rax, [rbp-0x08]
mov rsp, rbp
pop rbp
movq %rbp, %rsp
popq %rbp
jmp r11
jmpq *%r11
0:
mov rdi, [rbp-0x10]
mov rsi, [rbp-0x18]
mov rdx, [rbp-0x20]
movq -0x10(%rbp), %rdi
movq -0x18(%rbp), %rsi
movq -0x20(%rbp), %rdx
mov rsp, rbp
pop rbp
movq %rbp, %rsp
popq %rbp
jmp _of_method_not_found_stret
jmp _OFMethodNotFound_stret
init:
lea rdi, [rip+module]
leaq module(%rip), %rdi
jmp ___objc_exec_class
.section __DATA, __mod_init_func, mod_init_funcs
.quad init
.section __TEXT, __cstring, cstring_literals
str_forwardingTargetForSelector_:
|