1# REQUIRES: ppc
2# RUN: split-file %s %t
3# RUN: llvm-mc --triple=ppc64le %t/a.s --filetype=obj -o %t/a.o
4# RUN: llvm-mc --triple=ppc64le %t/b.s --filetype=obj -o %t/b.o
5# RUN: llvm-mc --triple=ppc64le %t/tga.s --filetype=obj -o %t/tga.o
6
7## User code can call __tls_get_addr by specifying the tls_index parameter.
8## We need to allow R_PPC64_REL24/R_PPC64_REL24_NOTOC referencing __tls_get_addr
9## without a pairing R_PPC64_TLSGD/R_PPC64_TLSLD.
10# RUN: ld.lld --shared --fatal-warnings %t/b.o -o /dev/null
11
12## Warn missing R_PPC64_TLSGD/R_PPC64_TLSLD.
13# RUN: ld.lld --shared %t/a.o -o %t.so 2>&1 | FileCheck %s --check-prefix=WARN
14# RUN: llvm-objdump -d --no-leading-addr %t.so | FileCheck %s --check-prefix=DIS
15
16# RUN: ld.lld %t/a.o %t/tga.o -o %t2 2>&1 | FileCheck %s --check-prefix=WARN
17# RUN: llvm-readelf -x .got %t2 | FileCheck %s --check-prefix=HEX
18# RUN: llvm-objdump -d --no-leading-addr %t2 | FileCheck %s --check-prefix=DIS
19
20# WARN: warning: {{.*}}.o: disable TLS relaxation due to R_PPC64_GOT_TLS* relocations without R_PPC64_TLSGD/R_PPC64_TLSLD relocations
21
22## .got+0: x is local - relaxed to LE - its DTPMOD/DTPREL slots are link-time constants.
23## DTPMOD is 1. DTPREL is st_value-0x8000 = -0x8000.
24## .got+16: DTPMOD/DTPREL for _TLS_MODULE_BASE_ is 1 and 0, respectively.
25## .got+32: TPOFFSET for x = st_value-0x7000
26# HEX:      section '.got':
27# HEX-NEXT: [[#%x,IGNORE:]] 50820210 00000000 01000000 00000000
28# HEX-NEXT: [[#%x,IGNORE:]] 0080ffff ffffffff 01000000 00000000
29# HEX-NEXT: [[#%x,IGNORE:]] 00000000 00000000 0090ffff ffffffff
30
31## .TOC.-32768 = (.got+0x8000)-32768 = .got
32# DIS-LABEL: <GeneralDynamic>:
33# DIS-NEXT:    addis 3, 2, 0
34# DIS-NEXT:    addi 3, 3, -32760
35# DIS-NEXT:    bl [[#%x,TGA:]]
36# DIS-LABEL: <GeneralDynamic_NOTOC>:
37# DIS-NEXT:    addis 3, 2, 0
38# DIS-NEXT:    addi 3, 3, -32760
39# DIS-NEXT:    bl [[#TGA]]
40
41## LocalDynamic references _TLS_MODULE_BASE_.
42## .TOC.-32752 = (.got+0x8000)-32752 = .got+16
43# DIS-LABEL: <LocalDynamic>:
44# DIS-NEXT:    addis 3, 2, 0
45# DIS-NEXT:    addi 3, 3, -32744
46# DIS-NEXT:    bl [[#TGA]]
47# DIS-LABEL: <LocalDynamic_NOTOC>:
48# DIS-NEXT:    addis 3, 2, 0
49# DIS-NEXT:    addi 3, 3, -32744
50# DIS-NEXT:    bl [[#TGA]]
51
52## Technically we don't have to disable IE to LE relaxation,
53## but disabling it for implementation simplicity does not hurt.
54# DIS-LABEL: <InitialExec>:
55# DIS-NEXT:    addis 3, 2, 0
56# DIS-NEXT:    ld 3, -32728(3)
57# DIS-NEXT:    add 3, 3, 13
58
59#--- a.s
60GeneralDynamic:
61  addis 3, 2, x@got@tlsgd@ha
62  addi 3, 3, x@got@tlsgd@l
63  bl __tls_get_addr
64  nop
65
66GeneralDynamic_NOTOC:
67  addis 3, 2, x@got@tlsgd@ha
68  addi 3, 3, x@got@tlsgd@l
69  bl __tls_get_addr@notoc
70  nop
71
72LocalDynamic:
73  addis 3, 2, x@got@tlsld@ha
74  addi 3, 3, x@got@tlsld@l
75  bl __tls_get_addr
76  nop
77
78LocalDynamic_NOTOC:
79  addis 3, 2, x@got@tlsld@ha
80  addi 3, 3, x@got@tlsld@l
81  bl __tls_get_addr@notoc
82  nop
83
84InitialExec:
85  addis 3, 2, x@got@tprel@ha
86  ld 3, x@got@tprel@l(3)
87  add 3, 3, x@tls
88
89.globl _start
90_start:
91
92.section .tbss,"awT",@nobits
93.globl x
94x:
95  .quad 0
96
97#--- b.s
98CallOnly:
99  bl __tls_get_addr
100  nop
101  blr
102
103#--- tga.s
104.globl __tls_get_addr
105__tls_get_addr:
106  blr
107