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
|
# REQUIRES: systemz
# RUN: llvm-mc -filetype=obj -triple=s390x-unknown-linux %s -o %t.o
# RUN: ld.lld -shared %t.o -o %t.so
# RUN: llvm-readelf -r %t.so | FileCheck --check-prefix=LD-REL %s
# RUN: llvm-objdump -d --no-show-raw-insn %t.so | FileCheck --check-prefix=LD %s
# RUN: llvm-objdump --section .data.rel.ro --full-contents %t.so | FileCheck --check-prefix=LD-DATA %s
# RUN: ld.lld %t.o -o %t
# RUN: llvm-readelf -r %t | FileCheck --check-prefix=NOREL %s
# RUN: llvm-objdump -d --no-show-raw-insn %t | FileCheck --check-prefix=LE %s
# RUN: llvm-objdump --section .data.rel.ro --full-contents %t | FileCheck --check-prefix=LE-DATA %s
# LD-REL: Relocation section '.rela.dyn' at offset {{.*}} contains 1 entries:
# LD-REL: 00000000000024f8 0000000000000036 R_390_TLS_DTPMOD 0
## _GLOBAL_OFFSET_TABLE is at 0x24e0
# LD: larl %r12, 0x24e0
## GOT offset of the LDM TLS module ID is at 0x23e0
# LD-NEXT: lgrl %r2, 0x23e0
# LD-NEXT: brasl %r14, 0x13c0
# LD-NEXT: la %r2, 0(%r2,%r7)
## DTP offset for a is at 0x23e8
# LD-NEXT: lgrl %r1, 0x23e8
# LD-NEXT: lgf %r1, 0(%r1,%r2)
## DTP offset for b is at 0x23f0
# LD-NEXT: lgrl %r1, 0x23f0
# LD-NEXT: lgf %r1, 0(%r1,%r2)
## DTP offset for c is at 0x23f8
# LD-NEXT: lgrl %r1, 0x23f8
# LD-NEXT: lgf %r1, 0(%r1,%r2)
## Constant pool holding GOT offsets of TLS module ID and DTP offsets:
# TLS module ID: 0x24f8 / 0x18
# a: 8
# b: 12
# c: 16
# LD-DATA: 23e0 00000000 00000018 00000000 00000008
# LD-DATA: 23f0 00000000 0000000c 00000000 00000010
# NOREL: no relocations
## _GLOBAL_OFFSET_TABLE is at 0x1002230
# LE: larl %r12, 0x1002230
## GOT offset of the LDM TLS module ID is at 0x1002210
# LE-NEXT: lgrl %r2, 0x1002210
# LE-NEXT: brcl 0,
# LE-NEXT: la %r2, 0(%r2,%r7)
## TP offset for a is at 0x1002218
# LE-NEXT: lgrl %r1, 0x1002218
# LE-NEXT: lgf %r1, 0(%r1,%r2)
## TP offset for b is at 0x1002220
# LE-NEXT: lgrl %r1, 0x1002220
# LE-NEXT: lgf %r1, 0(%r1,%r2)
## TP offset for c is at 0x1002228
# LE-NEXT: lgrl %r1, 0x1002228
# LE-NEXT: lgf %r1, 0(%r1,%r2)
## zeroed LDM / TP offsets:
# LDM TLS: 0
# a: -8
# b: -4
# c: 0
# LE-DATA: 1002210 00000000 00000000 ffffffff fffffff8
# LE-DATA: 1002220 ffffffff fffffffc 00000000 00000000
ear %r7,%a0
sllg %r7,%r1,32
ear %r7,%a1
larl %r12,_GLOBAL_OFFSET_TABLE_
lgrl %r2,.LC0
brasl %r14,__tls_get_offset@PLT:tls_ldcall:a
la %r2,0(%r2,%r7)
lgrl %r1, .LC1
lgf %r1,0(%r1,%r2)
lgrl %r1, .LC2
lgf %r1,0(%r1,%r2)
lgrl %r1, .LC3
lgf %r1,0(%r1,%r2)
.section .data.rel.ro,"aw"
.align 8
.LC0:
.quad a@TLSLDM
.LC1:
.quad a@DTPOFF
.LC2:
.quad b@DTPOFF
.LC3:
.quad c@DTPOFF
.section .tbss
.globl a
.globl b
.globl c
.zero 8
a:
.zero 4
b:
.zero 4
c:
|
