Index: test/ELF/linkerscript/empty-synthetic-removed-flags.s =================================================================== --- test/ELF/linkerscript/empty-synthetic-removed-flags.s +++ test/ELF/linkerscript/empty-synthetic-removed-flags.s @@ -0,0 +1,32 @@ +# REQUIRES: x86 +# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o +# RUN: echo "SECTIONS { \ +# RUN: .foo : { *(.foo) } \ +# RUN: .bar : { *(.got.plt) BYTE(0x11) }}" > %t.script +# RUN: ld.lld -o %t --script %t.script %t.o +# RUN: llvm-readobj -s %t | FileCheck %s + +## We have ".got.plt" synthetic section with SHF_ALLOC|SHF_WRITE flags. +## It is empty, so linker removes it, but it have to keep ".got.plt" output +## section because of BYTE command. Here we check that result output section +## gets the same flags as previous allocatable section and does not get +## SHF_WRITE flag from removed syntethic input section. + +# CHECK: Section { +# CHECK: Index: 2 +# CHECK: Name: .bar +# CHECK-NEXT: Type: SHT_PROGBITS +# CHECK-NEXT: Flags [ +# CHECK-NEXT: SHF_ALLOC +# CHECK-NEXT: SHF_EXECINSTR +# CHECK-NEXT: ] + +## Check flags are the same if we omit empty synthetic section in script. +# RUN: echo "SECTIONS { \ +# RUN: .foo : { *(.foo) } \ +# RUN: .bar : { BYTE(0x11) }}" > %t.script +# RUN: ld.lld -o %t --script %t.script %t.o +# RUN: llvm-readobj -s %t | FileCheck %s + +.section .foo,"ax" +.quad 0