forked from OSchip/llvm-project
75 lines
2.6 KiB
ArmAsm
75 lines
2.6 KiB
ArmAsm
# REQUIRES: x86
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## Test how we set the sh_link field of a SHF_LINK_ORDER output section.
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## Additionally, test that in a relocatable link, SHF_LINK_ORDER sections are
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## not combined. Combining them will arbitrarily choose a single output
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## section, losing tracking of correct dependencies.
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# RUN: llvm-mc -filetype=obj --triple=x86_64 %s -o %t.o
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## In the absence of a SECTIONS command.
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# RUN: ld.lld %t.o -o %t
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# RUN: llvm-readelf -S -x foo %t | FileCheck --check-prefixes=EXE,EXE-HEX %s
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# RUN: ld.lld %t.o -o %t.ro -r
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# RUN: llvm-readelf -S %t.ro | FileCheck --check-prefix=REL %s
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## A non-relocatable link places readonly sections before read-executable sections.
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# EXE: [Nr] Name {{.*}} Flg Lk
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# EXE-NEXT: [ 0]
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# EXE-NEXT: [ 1] foo {{.*}} AL 2
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# EXE-NEXT: [ 2] .text {{.*}} AX 0
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## An implementation detail: foo is moved after its linked-to section (orphan).
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# REL: [Nr] Name {{.*}} Flg Lk
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# REL-NEXT: [ 0]
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# REL-NEXT: [ 1] .text {{.*}} AX 0
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# REL-NEXT: [ 2] .text.f1 {{.*}} AX 0
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# REL-NEXT: [ 3] foo {{.*}} AL 2
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# REL-NEXT: [ 4] .text.f2 {{.*}} AX 0
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# REL-NEXT: [ 5] foo {{.*}} AL 4
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## A SECTIONS command combines .text.*
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# RUN: echo 'SECTIONS { .text : { *(.text.f1) *(.text.f2) } }' > %t1.lds
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# RUN: ld.lld -T %t1.lds %t.o -o %t1
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# RUN: llvm-readelf -S -x foo %t1 | FileCheck --check-prefixes=EXE,EXE-HEX %s
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# RUN: ld.lld -T %t1.lds %t.o -o %t1.ro -r
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# RUN: llvm-readelf -S -x foo %t1.ro | FileCheck --check-prefix=REL1 %s
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# REL1: [Nr] Name {{.*}} Flg Lk
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# REL1-NEXT: [ 0]
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# REL1-NEXT: [ 1] .text {{.*}} AX 0
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# REL1-NEXT: [ 2] foo {{.*}} AL 1
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## A SECTIONS command separates .text.*
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# RUN: echo 'SECTIONS { .text.f1 : { *(.text.f1) } .text.f2 : { *(.text.f2) } }' > %t2.lds
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# RUN: ld.lld -T %t2.lds %t.o -o %t2
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# RUN: llvm-readelf -S -x foo %t2 | FileCheck --check-prefixes=EXE2,EXE-HEX %s
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# RUN: ld.lld -T %t2.lds %t.o -o %t2.ro -r
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# RUN: llvm-readelf -S %t2.ro | FileCheck --check-prefixes=REL2 %s
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# EXE2: [Nr] Name {{.*}} Flg Lk
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# EXE2-NEXT: [ 0]
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# EXE2-NEXT: [ 1] foo {{.*}} AL 2
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# EXE2-NEXT: [ 2] .text.f1 {{.*}} AX 0
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# EXE2-NEXT: [ 3] .text.f2 {{.*}} AX 0
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# REL2: [Nr] Name {{.*}} Flg Lk
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# REL2-NEXT: [ 0]
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# REL2-NEXT: [ 1] .text.f1 {{.*}} AX 0
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# REL2-NEXT: [ 2] .text.f2 {{.*}} AX 0
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# REL2-NEXT: [ 3] .text {{.*}} AX 0
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# REL2-NEXT: [ 4] foo {{.*}} AL 1
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# REL2-NEXT: [ 5] foo {{.*}} AL 2
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# EXE-HEX: Hex dump of section 'foo':
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# EXE-HEX-NEXT: 0102
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.section .text.f1,"ax",@progbits
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ret
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.section .text.f2,"ax",@progbits
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ret
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.section foo,"ao",@progbits,.text.f2
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.byte 2
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.section foo,"ao",@progbits,.text.f1
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.byte 1
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