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[ELF][test] Add --emit-relocs --gc-sections test for relocation section for a non-SHF_ALLOC section 

This has been fixed by D89841.
This commit is contained in:
Fangrui Song 2021-01-30 00:51:36 -08:00
parent 8ed1636184
commit 3949a3ed49
1 changed files with 11 additions and 6 deletions
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17
lld/test/ELF/emit-relocs-gc.s
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@ -1,22 +1,24 @@
# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
## Show that we emit .rela.bar and .rela.text when GC is disabled.
## Show that we emit .rela.bar, .rela.text and .rela.debug_info when GC is disabled.
# RUN: ld.lld --emit-relocs %t.o -o %t
# RUN: llvm-objdump %t --section-headers | FileCheck %s --check-prefix=NOGC
# NOGC: .rela.text
# NOGC: .rela.bar
# NOGC: .rela.debug_info
## GC collects .bar section and we exclude .rela.bar from output. We keep
## .rela.text because we keep .text.
## .rela.text because we keep .text. We keep .rela.debug_info because we keep
## non-SHF_ALLOC .debug_info.
# RUN: ld.lld --gc-sections --emit-relocs --print-gc-sections %t.o -o %t \
# RUN: | FileCheck --check-prefix=MSG %s
# MSG: removing unused section {{.*}}.o:(.bar)
# MSG: removing unused section {{.*}}.o:(.rela.bar)
# RUN: llvm-objdump %t --section-headers | FileCheck %s --check-prefix=GC
# GC-NOT: rela.bar
# GC: rela.text
# GC-NOT: rela.bar
# RUN: llvm-objdump %t --section-headers | FileCheck %s --check-prefix=GC --implicit-check-not=.rela.
# GC: .rela.text
# GC-NEXT: .debug_info
# GC-NEXT: .rela.debug_info
.section .bar,"a"
.quad .bar
@ -28,3 +30,6 @@ relocs:
.global _start
_start:
nop
.section .debug_info,"",@progbits
.quad .text