1
2
3
4
5
6
7
8
9
10
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
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
|
# RUN: llvm-mc %s -filetype obj -triple aarch64-- -o %t.o
# RUN: llvm-cfi-verify %t.o | FileCheck %s
# CHECK-LABEL: {{^Instruction: .* \(PROTECTED\)}}
# CHECK-NEXT: tiny.cc:9
# CHECK: Expected Protected: 1 (100.00%)
# CHECK: Unexpected Protected: 0 (0.00%)
# CHECK: Expected Unprotected: 0 (0.00%)
# CHECK: Unexpected Unprotected (BAD): 0 (0.00%)
# Source (tiny.cc):
# int a() { return 42; }
# int b() { return 137; }
# int main(int argc, char** argv) {
# int(*ptr)();
# if (argc == 1)
# ptr = &a;
# else
# ptr = &b;
# return ptr();
# }
.text
.file "ld-temp.o"
.p2align 2
.type _Z1av.cfi,@function
_Z1av.cfi:
.Lfunc_begin0:
.file 1 "/tmp/tiny.cc"
.loc 1 1 0
.cfi_startproc
.loc 1 1 11 prologue_end
mov w0, #42
ret
.Ltmp0:
.Lfunc_end0:
.size _Z1av.cfi, .Lfunc_end0-_Z1av.cfi
.cfi_endproc
.p2align 2
.type _Z1bv.cfi,@function
_Z1bv.cfi:
.Lfunc_begin1:
.loc 1 2 0
.cfi_startproc
.loc 1 2 11 prologue_end
mov w0, #137
ret
.Ltmp1:
.Lfunc_end1:
.size _Z1bv.cfi, .Lfunc_end1-_Z1bv.cfi
.cfi_endproc
.p2align 2
.type main,@function
main:
.Lfunc_begin2:
.loc 1 3 0
.cfi_startproc
sub sp, sp, #48
stp x29, x30, [sp, #32]
add x29, sp, #32
.cfi_def_cfa w29, 16
.cfi_offset w30, -8
.cfi_offset w29, -16
stur wzr, [x29, #-4]
stur w0, [x29, #-8]
str x1, [sp, #16]
.Ltmp2:
.loc 1 5 7 prologue_end
ldur w8, [x29, #-8]
cmp w8, #1
b.ne .LBB2_2
.loc 1 0 7 is_stmt 0
adrp x8, _Z1av
add x8, x8, :lo12:_Z1av
.loc 1 6 9 is_stmt 1
str x8, [sp, #8]
.loc 1 6 5 is_stmt 0
b .LBB2_3
.LBB2_2:
.loc 1 0 5
adrp x8, _Z1bv
add x8, x8, :lo12:_Z1bv
.loc 1 8 9 is_stmt 1
str x8, [sp, #8]
.LBB2_3:
.loc 1 0 9 is_stmt 0
adrp x8, .L.cfi.jumptable
add x9, x8, :lo12:.L.cfi.jumptable
.loc 1 9 10 is_stmt 1
ldr x8, [sp, #8]
sub x9, x8, x9
lsr x10, x9, #2
orr x9, x10, x9, lsl #62
cmp x9, #1
b.ls .LBB2_5
brk #0x1
.LBB2_5:
blr x8
.loc 1 9 3 is_stmt 0
ldp x29, x30, [sp, #32]
add sp, sp, #48
ret
.Ltmp3:
.Lfunc_end2:
.size main, .Lfunc_end2-main
.cfi_endproc
.p2align 2
.type .L.cfi.jumptable,@function
.L.cfi.jumptable:
.Lfunc_begin3:
.cfi_startproc
//APP
b _Z1av.cfi
b _Z1bv.cfi
//NO_APP
.Lfunc_end3:
.size .L.cfi.jumptable, .Lfunc_end3-.L.cfi.jumptable
.cfi_endproc
.type .L__unnamed_1,@object
.section .rodata,"a",@progbits
.p2align 2
.L__unnamed_1:
.size .L__unnamed_1, 0
.section .debug_str,"MS",@progbits,1
.Linfo_string0:
.asciz "clang version 7.0.0 (trunk 335774) (llvm/trunk 335775)"
.Linfo_string1:
.asciz "tiny.cc"
.Linfo_string2:
.asciz ""
.section .debug_abbrev,"",@progbits
.byte 1
.byte 17
.byte 0
.byte 37
.byte 14
.byte 19
.byte 5
.byte 3
.byte 14
.byte 16
.byte 23
.byte 27
.byte 14
.byte 17
.byte 1
.byte 18
.byte 6
.byte 0
.byte 0
.byte 0
.section .debug_info,"",@progbits
.Lcu_begin0:
.word 38
.hword 4
.word .debug_abbrev
.byte 8
.byte 1
.word .Linfo_string0
.hword 4
.word .Linfo_string1
.word .Lline_table_start0
.word .Linfo_string2
.xword .Lfunc_begin0
.word .Lfunc_end2-.Lfunc_begin0
.section .debug_ranges,"",@progbits
.section .debug_macinfo,"",@progbits
.byte 0
.type _Z1av,@function
.set _Z1av, .L.cfi.jumptable
.type _Z1bv,@function
.set _Z1bv, .L.cfi.jumptable+4
.ident "clang version 7.0.0 (trunk 335774) (llvm/trunk 335775)"
.section ".note.GNU-stack","",@progbits
.section .debug_line,"",@progbits
.Lline_table_start0:
|
