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llvm-project/lld/test/ELF/relocatable-bss.s

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[ELF] - Do not allow .bss to occupy the file space when producing relocatable output When generating relocatable output SHT_NOBITS sections were still occupy the file space. Differential revision: http://reviews.llvm.org/D17857 llvm-svn: 262650
2016-03-04 04:24:14 +08:00
# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t1.o
# RUN: ld.lld -r %t1.o -o %t
# RUN: llvm-readobj -file-headers -sections -program-headers -symbols -r %t | FileCheck %s
## We check here that .bss does not occupy the space in file.
## If it would, the SectionHeaderOffset would have offset about 5 megabytes.
# CHECK: ElfHeader {
# CHECK-NEXT: Ident {
# CHECK-NEXT: Magic: (7F 45 4C 46)
# CHECK-NEXT: Class: 64-bit
# CHECK-NEXT: DataEncoding: LittleEndian
# CHECK-NEXT: FileVersion: 1
# CHECK-NEXT: OS/ABI: SystemV
# CHECK-NEXT: ABIVersion: 0
# CHECK-NEXT: Unused: (00 00 00 00 00 00 00)
# CHECK-NEXT: }
# CHECK-NEXT: Type: Relocatable
# CHECK-NEXT: Machine: EM_X86_64
# CHECK-NEXT: Version:
# CHECK-NEXT: Entry:
# CHECK-NEXT: ProgramHeaderOffset:
Avoid a crash with -r and .comment. We would create a MergeInputSection for the synthetic .comment and crash trying to add it to a regular output section. With this we just don't add the synthetic section with -r. That is consistent with gold that doesn't create .note.gnu.gold-version with -r. llvm-svn: 286635
2016-11-12 05:36:25 +08:00
# CHECK-NEXT: SectionHeaderOffset: 0xA8
[ELF] - Do not allow .bss to occupy the file space when producing relocatable output When generating relocatable output SHT_NOBITS sections were still occupy the file space. Differential revision: http://reviews.llvm.org/D17857 llvm-svn: 262650
2016-03-04 04:24:14 +08:00
# CHECK-NEXT: Flags [
# CHECK-NEXT: ]
# CHECK-NEXT: HeaderSize:
# CHECK-NEXT: ProgramHeaderEntrySize:
# CHECK-NEXT: ProgramHeaderCount:
# CHECK-NEXT: SectionHeaderEntrySize:
# CHECK-NEXT: SectionHeaderCount:
# CHECK-NEXT: StringTableSectionIndex:
# CHECK-NEXT: }
.text
Remove unnecessary trailing semicolons. Since this semicolon existed in an early test file, it has spread to many files. llvm-svn: 267659
2016-04-27 10:58:27 +08:00
.globl _start
[ELF] - Do not allow .bss to occupy the file space when producing relocatable output When generating relocatable output SHT_NOBITS sections were still occupy the file space. Differential revision: http://reviews.llvm.org/D17857 llvm-svn: 262650
2016-03-04 04:24:14 +08:00
_start:
nop
.bss
.space 5242880