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
|
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
|
-
+
-
-
+
-
-
-
+
+
+
+
+
+
+
+
+
-
-
-
+
+
-
-
-
+
+
+
+
-
+
+
-
+
+
-
+
-
-
+
-
-
-
+
+
+
+
+
+
+
+
+
-
-
-
+
+
-
-
-
+
+
+
+
-
+
+
-
+
+
-
+
|
.long 0, 0
.section __TEXT, __text, regular, pure_instructions
_of_forward:
pushl %ebp
movl %esp, %ebp
pushl 8(%ebp)
pushl %ebx
call _object_getClass
addl $4, %esp
L0:
pushl L_sel_forwardingTargetForSelector-L0(%edx)
pushl %eax
.L0:
movl 8(%ebp), %eax
movl %eax, (%esp)
call _object_getClass
movl %eax, (%esp)
movl L_sel_forwardingTargetForSelector-.L0(%ebx), %eax
movl %eax, 4(%esp)
call _class_respondsToSelector
addl $8, %esp
pushl 12(%ebp)
call get_eip
movl 8(%ebp), %eax
movl %eax, (%esp)
L1:
pushl L_sel_forwardingTargetForSelector-L1(%edx)
pushl 8(%ebp)
movl %ebp, %esp
addl $20, %esp
popl %ebx
popl %ebp
jmp _objc_msgSend
fail:
movl %ebp, %esp
addl $20, %esp
popl %ebx
popl %ebp
jmp _of_method_not_found
_of_forward_stret:
pushl %ebp
movl %esp, %ebp
pushl 12(%ebp)
pushl %ebx
call _object_getClass
addl $4, %esp
L2:
pushl L_sel_forwardingTargetForSelector-L2(%edx)
pushl %eax
addl $8, %esp
pushl 16(%ebp)
call get_eip
movl 12(%ebp), %eax
movl %eax, (%esp)
L3:
pushl L_sel_forwardingTargetForSelector-L3(%edx)
pushl 12(%ebp)
movl %ebp, %esp
addl $20, %esp
popl %ebx
popl %ebp
jmp _objc_msgSend_stret
fail_stret:
movl 12(%ebp), %eax
movl %eax, 8(%ebp)
movl 16(%ebp), %eax
movl %eax, 12(%ebp)
movl %ebp, %esp
addl $20, %esp
popl %ebx
popl %ebp
jmp _of_method_not_found
get_eip:
movl (%esp), %edx
movl (%esp), %ebx
ret
|