merge-reloc.s
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# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
# RUN: ld.lld %t.o -r -o %t-rel
# RUN: llvm-readobj -S --section-data %t-rel | FileCheck %s
# When linker generates a relocatable object it does string merging in the same
# way as for regular link. It should keep SHF_MERGE flag and set proper sh_entsize
# value so that final link can perform the final merging optimization.
# CHECK: Section {
# CHECK: Index:
# CHECK: Name: .rodata.1 (
# CHECK-NEXT: Type: SHT_PROGBITS
# CHECK-NEXT: Flags [
# CHECK-NEXT: SHF_ALLOC
# CHECK-NEXT: SHF_MERGE
# CHECK-NEXT: ]
# CHECK-NEXT: Address:
# CHECK-NEXT: Offset:
# CHECK-NEXT: Size: 4
# CHECK-NEXT: Link: 0
# CHECK-NEXT: Info: 0
# CHECK-NEXT: AddressAlignment: 4
# CHECK-NEXT: EntrySize: 4
# CHECK-NEXT: SectionData (
# CHECK-NEXT: 0000: 42000000
# CHECK-NEXT: )
# CHECK-NEXT: }
# CHECK: Section {
# CHECK: Index:
# CHECK: Name: .rodata.2 (
# CHECK-NEXT: Type: SHT_PROGBITS
# CHECK-NEXT: Flags [
# CHECK-NEXT: SHF_ALLOC
# CHECK-NEXT: SHF_MERGE
# CHECK-NEXT: ]
# CHECK-NEXT: Address:
# CHECK-NEXT: Offset:
# CHECK-NEXT: Size: 8
# CHECK-NEXT: Link: 0
# CHECK-NEXT: Info: 0
# CHECK-NEXT: AddressAlignment: 8
# CHECK-NEXT: EntrySize: 8
# CHECK-NEXT: SectionData (
# CHECK-NEXT: 0000: 42000000 42000000
# CHECK-NEXT: )
# CHECK-NEXT: }
# CHECK: Section {
# CHECK: Index:
# CHECK: Name: .data
# CHECK-NEXT: Type: SHT_PROGBITS
# CHECK-NEXT: Flags [
# CHECK-NEXT: SHF_ALLOC
# CHECK-NEXT: SHF_WRITE
# CHECK-NEXT: ]
# CHECK-NEXT: Address:
# CHECK-NEXT: Offset:
# CHECK-NEXT: Size: 16
# CHECK-NEXT: Link: 0
# CHECK-NEXT: Info: 0
# CHECK-NEXT: AddressAlignment: 1
# CHECK-NEXT: EntrySize: 0
# CHECK-NEXT: SectionData (
# CHECK-NEXT: 0000: 42000000 42000000 42000000 42000000
# CHECK-NEXT: )
# CHECK-NEXT: }
.section .rodata.1,"aM",@progbits,4
.align 4
.global foo
foo:
.long 0x42
.long 0x42
.long 0x42
.section .rodata.2,"aM",@progbits,8
.align 8
.global bar
bar:
.long 0x42
.long 0x42
.long 0x42
.long 0x42
.data
.global gar
zed:
.long 0x42
.long 0x42
.long 0x42
.long 0x42