1# REQUIRES: x86
2## Test how we set the sh_link field of a SHF_LINK_ORDER output section.
3## Additionally, test that in a relocatable link, SHF_LINK_ORDER sections are
4## not combined. Combining them will arbitrarily choose a single output
5## section, losing tracking of correct dependencies.
6
7# RUN: llvm-mc -filetype=obj --triple=x86_64 %s -o %t.o
8
9## In the absence of a SECTIONS command.
10# RUN: ld.lld %t.o -o %t
11# RUN: llvm-readelf -S -x foo %t | FileCheck --check-prefixes=EXE,EXE-HEX %s
12# RUN: ld.lld %t.o -o %t.ro -r
13# RUN: llvm-readelf -S %t.ro | FileCheck --check-prefix=REL %s
14
15## A non-relocatable link places readonly sections before read-executable sections.
16# EXE:      [Nr] Name     {{.*}} Flg Lk
17# EXE-NEXT: [ 0]
18# EXE-NEXT: [ 1] foo      {{.*}}  AL  2
19# EXE-NEXT: [ 2] .text    {{.*}}  AX  0
20
21## An implementation detail: foo is moved after its linked-to section (orphan).
22# REL:      [Nr] Name     {{.*}} Flg Lk
23# REL-NEXT: [ 0]
24# REL-NEXT: [ 1] .text    {{.*}}  AX  0
25# REL-NEXT: [ 2] .text.f1 {{.*}}  AX  0
26# REL-NEXT: [ 3] foo      {{.*}}  AL  2
27# REL-NEXT: [ 4] .text.f2 {{.*}}  AX  0
28# REL-NEXT: [ 5] foo      {{.*}}  AL  4
29
30## A SECTIONS command combines .text.*
31# RUN: echo 'SECTIONS { .text : { *(.text.f1) *(.text.f2) } }' > %t1.lds
32# RUN: ld.lld -T %t1.lds %t.o -o %t1
33# RUN: llvm-readelf -S -x foo %t1 | FileCheck --check-prefixes=EXE,EXE-HEX %s
34# RUN: ld.lld -T %t1.lds %t.o -o %t1.ro -r
35# RUN: llvm-readelf -S -x foo %t1.ro | FileCheck --check-prefix=REL1 %s
36
37# REL1:      [Nr] Name    {{.*}} Flg Lk
38# REL1-NEXT: [ 0]
39# REL1-NEXT: [ 1] .text   {{.*}}  AX  0
40# REL1-NEXT: [ 2] foo     {{.*}}  AL  1
41
42## A SECTIONS command separates .text.*
43# RUN: echo 'SECTIONS { .text.f1 : { *(.text.f1) } .text.f2 : { *(.text.f2) } }' > %t2.lds
44# RUN: ld.lld -T %t2.lds %t.o -o %t2
45# RUN: llvm-readelf -S -x foo %t2 | FileCheck --check-prefixes=EXE2,EXE-HEX %s
46# RUN: ld.lld -T %t2.lds %t.o -o %t2.ro -r
47# RUN: llvm-readelf -S %t2.ro | FileCheck --check-prefixes=REL2 %s
48
49# EXE2:      [Nr] Name     {{.*}} Flg Lk
50# EXE2-NEXT: [ 0]
51# EXE2-NEXT: [ 1] foo      {{.*}}  AL  2
52# EXE2-NEXT: [ 2] .text.f1 {{.*}}  AX  0
53# EXE2-NEXT: [ 3] .text.f2 {{.*}}  AX  0
54
55# REL2:      [Nr] Name     {{.*}} Flg Lk
56# REL2-NEXT: [ 0]
57# REL2-NEXT: [ 1] .text.f1 {{.*}}  AX  0
58# REL2-NEXT: [ 2] .text.f2 {{.*}}  AX  0
59# REL2-NEXT: [ 3] .text    {{.*}}  AX  0
60# REL2-NEXT: [ 4] foo      {{.*}}  AL  1
61# REL2-NEXT: [ 5] foo      {{.*}}  AL  2
62
63# EXE-HEX:      Hex dump of section 'foo':
64# EXE-HEX-NEXT: 0102
65
66.section .text.f1,"ax",@progbits
67ret
68.section .text.f2,"ax",@progbits
69ret
70
71.section foo,"ao",@progbits,.text.f2
72.byte 2
73.section foo,"ao",@progbits,.text.f1
74.byte 1
75