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
|
// REQUIRES: aarch64
// RUN: llvm-mc -filetype=obj -triple=aarch64-pc-linux %s -o %t.o
// RUN: ld.lld --hash-style=sysv -shared %t.o -o %t.so
// RUN: llvm-objdump -d %t.so | FileCheck %s
// RUN: llvm-readobj -r %t.so | FileCheck --check-prefix=REL %s
.text
adrp x0, :tlsdesc:a
ldr x1, [x0, :tlsdesc_lo12:a]
add x0, x0, :tlsdesc_lo12:a
.tlsdesccall a
blr x1
// Create relocation against local TLS symbols where linker should
// create target specific dynamic TLSDESC relocation where addend is
// the symbol VMA in tls block.
// CHECK: 10000: {{.*}} adrp x0, #65536
// CHECK-NEXT: 10004: {{.*}} ldr x1, [x0, #144]
// CHECK-NEXT: 10008: {{.*}} add x0, x0, #144
// CHECK-NEXT: 1000c: {{.*}} blr x1
adrp x0, :tlsdesc:local1
ldr x1, [x0, :tlsdesc_lo12:local1]
add x0, x0, :tlsdesc_lo12:local1
.tlsdesccall a
blr x1
// CHECK: 10010: {{.*}} adrp x0, #65536
// CHECK-NEXT: 10014: {{.*}} ldr x1, [x0, #160]
// CHECK-NEXT: 10018: {{.*}} add x0, x0, #160
// CHECK-NEXT: 1001c: {{.*}} blr x1
adrp x0, :tlsdesc:local2
ldr x1, [x0, :tlsdesc_lo12:local2]
add x0, x0, :tlsdesc_lo12:local2
.tlsdesccall a
blr x1
// CHECK: 10020: {{.*}} adrp x0, #65536
// CHECK-NEXT: 10024: {{.*}} ldr x1, [x0, #176]
// CHECK-NEXT: 10028: {{.*}} add x0, x0, #176
// CHECK-NEXT: 1002c: {{.*}} blr x1
.section .tbss,"awT",@nobits
.type local1,@object
.p2align 2
local1:
.word 0
.size local1, 4
.type local2,@object
.p2align 3
local2:
.xword 0
.size local2, 8
// 0x1000 + 4096 + 160 = 0x20A0
// 0x1000 + 4096 + 176 = 0x20B0
// 0x1000 + 4096 + 144 = 0x2090
// R_AARCH64_TLSDESC - 0x0 -> start of tls block
// R_AARCH64_TLSDESC - 0x8 -> align (sizeof (local1), 8)
// REL: Relocations [
// REL-NEXT: Section (4) .rela.dyn {
// REL-NEXT: 0x200A0 R_AARCH64_TLSDESC - 0x0
// REL-NEXT: 0x200B0 R_AARCH64_TLSDESC - 0x8
// REL-NEXT: 0x20090 R_AARCH64_TLSDESC a 0x0
// REL-NEXT: }
// REL-NEXT: ]
|
