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
|
# REQUIRES: aarch64
# RUN: rm -rf %t && split-file %s %t && cd %t
# RUN: llvm-mc -filetype=obj -triple=aarch64 1.s -o 1.o
# RUN: ld.lld 1.o --shared -o 1.so
# RUN: llvm-readelf -d -s 1.so | FileCheck --check-prefix=CHECK1 %s
# CHECK1: Symbol table '.dynsym'
# CHECK1: 0 NOTYPE GLOBAL DEFAULT [VARIANT_PCS] [[#]] func_global_def
# CHECK1: Symbol table '.symtab'
# CHECK1: 0 NOTYPE GLOBAL DEFAULT [VARIANT_PCS] [[#]] func_global_def
# RUN: llvm-mc -filetype=obj -triple=aarch64 2.s -o 2.o
# RUN: ld.lld 2.o --shared -o 2.so
# RUN: llvm-readelf -d -s 2.so | FileCheck --check-prefix=CHECK2 %s
# CHECK2: 0x0000000070000005 (AARCH64_VARIANT_PCS) 0
# CHECK2: Symbol table '.dynsym'
# CHECK2: 0 NOTYPE GLOBAL DEFAULT [VARIANT_PCS] [[#]] func_global_def
# CHECK2: Symbol table '.symtab'
# CHECK2: 0 NOTYPE GLOBAL DEFAULT [VARIANT_PCS] [[#]] func_global_def
# RUN: llvm-mc -filetype=obj -triple=aarch64 3.s -o 3.o
# RUN: ld.lld 3.o --shared -o 3.so
# RUN: llvm-readelf -d -s 3.so | FileCheck --check-prefix=CHECK3 %s
# CHECK3: 0x0000000070000005 (AARCH64_VARIANT_PCS) 0
# CHECK3: Symbol table '.dynsym'
# CHECK3: 0 IFUNC GLOBAL DEFAULT [VARIANT_PCS] UND ifunc_global_def
# CHECK3: 0 NOTYPE GLOBAL DEFAULT [[#]] func_global_def
# RUN: llvm-mc -filetype=obj -triple=aarch64 4.s -o 4.o
# RUN: ld.lld 4.o --shared -o 4.so
# RUN: llvm-readelf -d -s 4.so | FileCheck --check-prefix=CHECK4 %s
# CHECK4-NOT: 0x0000000070000005 (AARCH64_VARIANT_PCS) 0
# CHECK4: Symbol table '.dynsym'
# CHECK4: 0 IFUNC GLOBAL DEFAULT [VARIANT_PCS] [[#]] ifunc_global_def
# RUN: llvm-mc -filetype=obj -triple=aarch64 5.s -o 5.o
# RUN: ld.lld 5.o --shared -o 5.so
# RUN: llvm-readelf -d -s 5.so | FileCheck --check-prefix=CHECK5 %s
# CHECK5: Symbol table '.dynsym' contains 4 entries:
# CHECK5: 0 NOTYPE GLOBAL DEFAULT [VARIANT_PCS] UND func_global_undef
# CHECK5-NEXT: 0 NOTYPE GLOBAL DEFAULT [VARIANT_PCS] [[#]] func_global_def
# CHECK5-NEXT: 0 IFUNC GLOBAL DEFAULT [VARIANT_PCS] [[#]] ifunc_global_def
# CHECK5: Symbol table '.symtab' contains 10 entries:
# CHECK5: 0 NOTYPE LOCAL DEFAULT [VARIANT_PCS] [[#]] func_local
# CHECK5-NEXT: 0 IFUNC LOCAL DEFAULT [VARIANT_PCS] [[#]] ifunc_local
# CHECK5: 0 NOTYPE LOCAL HIDDEN [VARIANT_PCS] [[#]] func_global_hidden
# CHECK5-NEXT: 0 IFUNC LOCAL HIDDEN [VARIANT_PCS] [[#]] ifunc_global_hidden
# CHECK5: 0 NOTYPE GLOBAL DEFAULT [VARIANT_PCS] [[#]] func_global_def
# CHECK5-NEXT: 0 NOTYPE GLOBAL DEFAULT [VARIANT_PCS] UND func_global_undef
# CHECK5-NEXT: 0 IFUNC GLOBAL DEFAULT [VARIANT_PCS] [[#]] ifunc_global_def
#--- 1.s
## An object with a variant_pcs symbol but without a R_AARCH64_JMP_SLOT
## should not generate a DT_AARCH64_VARIANT_PCS.
.text
.global func_global_def
.variant_pcs func_global_def
func_global_def:
ret
#--- 2.s
## An object with a variant_pcs symbol and with a R_AARCH64_JMP_SLOT
## should generate a DT_AARCH64_VARIANT_PCS.
.text
.global func_global_def
.variant_pcs func_global_def
func_global_def:
bl func_global_def
#--- 3.s
## Same as before, but targeting a GNU IFUNC.
.text
.global ifunc_global_def
.global func_global_def
.variant_pcs ifunc_global_def
.type ifunc_global_def, %gnu_indirect_function
func_global_def:
bl ifunc_global_def
#--- 4.s
## An object with a variant_pcs symbol and with a R_AARCH64_IRELATIVE
## should not generate a DT_AARCH64_VARIANT_PCS.
.text
.global ifunc_global_def
.global func_global_def
.variant_pcs ifunc_global_def
.type ifunc_global_def, %gnu_indirect_function
ifunc_global_def:
bl func_global_def
#--- 5.s
## Check if STO_AARCH64_VARIANT_PCS is kept on symbol st_other for both undef,
## local, and hidden visibility.
.text
.global func_global_def, func_global_undef, func_global_hidden
.global ifunc_global_def, ifunc_global_hidden
.local func_local
.hidden func_global_hidden, ifunc_global_hidden
.type ifunc_global_def, %gnu_indirect_function
.type ifunc_global_hidden, %gnu_indirect_function
.type ifunc_local, %gnu_indirect_function
.variant_pcs func_global_def
.variant_pcs func_global_undef
.variant_pcs func_global_hidden
.variant_pcs func_local
.variant_pcs ifunc_global_def
.variant_pcs ifunc_global_hidden
.variant_pcs ifunc_local
func_global_def:
func_global_hidden:
func_local:
ifunc_global_def:
ifunc_global_hidden:
ifunc_local:
ret
|
