linkorder.s
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# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
## Contiguous SHF_LINK_ORDER sections.
# RUN: echo 'SECTIONS { .rodata : {BYTE(0) *(.rodata*) BYTE(4)} \
# RUN: .text : {*(.text.bar) *(.text.foo)} }' > %t.lds
# RUN: ld.lld -T %t.lds %t.o -o %t
# RUN: llvm-readelf -S -x .rodata -x .text %t | FileCheck %s
# CHECK: [ 1] .rodata {{.*}} AL 3
# CHECK: [ 3] .text {{.*}} AX 0
# CHECK: Hex dump of section '.rodata':
# CHECK-NEXT: 00030102 04
# CHECK: Hex dump of section '.text':
# CHECK-NEXT: 0201
# RUN: echo 'SECTIONS { .rodata : {BYTE(0) *(.rodata*) BYTE(4)} \
# RUN: .text : {*(.text.foo) *(.text.bar)} }' > %t1.lds
# RUN: ld.lld -T %t1.lds %t.o -o %t1
# RUN: llvm-readelf -S -x .rodata -x .text %t1 | FileCheck --check-prefix=CHECK1 %s
# CHECK1: [ 1] .rodata {{.*}} AL 3
# CHECK1: [ 3] .text {{.*}} AX 0
# CHECK1: Hex dump of section '.rodata':
# CHECK1-NEXT: 00010302 04
# CHECK1: Hex dump of section '.text':
# CHECK1-NEXT: 0102
## Adjacent input sections descriptions are contiguous.
## Orphan section .text.bar precedes .text.foo. However, don't swap the order of .rodata.*
## because they are in different InputSectionDescriptions.
# RUN: echo 'SECTIONS { .rodata : {*(.rodata.foo) *(.rodata.bar)} }' > %t2.lds
# RUN: ld.lld -T %t2.lds %t.o -o %t2
# RUN: llvm-readelf -S -x .rodata %t2 | FileCheck --check-prefix=CHECK2 %s
# CHECK2: [ 1] .rodata {{.*}} AL 5
# CHECK2: [ 4] .text.bar {{.*}} AX 0
# CHECK2-NEXT: [ 5] .text.foo {{.*}} AX 0
# CHECK2: Hex dump of section '.rodata':
# CHECK2-NEXT: 010302
## Non-contiguous SHF_LINK_ORDER sections, separated by a BYTE.
# RUN: echo 'SECTIONS { .rodata : {*(.rodata.foo) BYTE(0) *(.rodata.bar)} }' > %t3.lds
# RUN: ld.lld -T %t3.lds %t.o -o %t3
# RUN: llvm-readelf -S -x .rodata %t3 | FileCheck --check-prefix=CHECK3 %s
# CHECK3: [ 1] .rodata {{.*}} AL 5
# CHECK3: [ 4] .text.bar {{.*}} AX 0
# CHECK3: [ 5] .text.foo {{.*}} AX 0
# CHECK3: Hex dump of section '.rodata':
# CHECK3-NEXT: 01000302
## Non-contiguous SHF_LINK_ORDER sections, separated by a non-SHF_LINK_ORDER section.
# RUN: echo 'SECTIONS { .rodata : {*(.rodata.foo) *(.text) *(.rodata.bar)} }' > %t4.lds
# RUN: ld.lld -T %t4.lds %t.o -o %t4
# RUN: llvm-readelf -x .rodata %t4 | FileCheck --check-prefix=CHECK4 %s
# CHECK4: Hex dump of section '.rodata':
# CHECK4-NEXT: 01cccccc 0302
## Non-contiguous SHF_LINK_ORDER sections, separated by a symbol assignment.
# RUN: echo 'SECTIONS { .rodata : {*(.rodata.foo) a = .; *(.rodata.bar)} }' > %t5.lds
# RUN: ld.lld -T %t5.lds %t.o -o %t5
# RUN: llvm-readelf -S -x .rodata %t5 | FileCheck --check-prefix=CHECK2 %s
.global _start
_start:
.section .ro,"a"
.byte 0
.section .text.bar,"a",@progbits
.byte 2
.section .text.foo,"a",@progbits
.byte 1
.section .rodata.foo,"ao",@progbits,.text.foo
.byte 1
## If the two .rodata.bar sections are in the same InputSectionDescription,
## 03 (sh_link!=0) will be ordered before 02 (sh_link=0).
.section .rodata.bar,"a",@progbits
.byte 2
.section .rodata.bar,"ao",@progbits,.text.bar
.byte 3