| # REQUIRES: x86 |
| # RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o |
| # RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/comdat-discarded-reloc.s -o %t2.o |
| # RUN: ld.lld -gc-sections --noinhibit-exec %t2.o %t.o -o /dev/null |
| # RUN: ld.lld -r %t2.o %t.o -o %t 2>&1 | FileCheck --check-prefix=WARN %s |
| # RUN: llvm-readobj -r %t | FileCheck --check-prefix=RELOC %s |
| |
| ## ELF spec doesn't allow a relocation to point to a deduplicated |
| ## COMDAT section. Unfortunately this happens in practice (e.g. .eh_frame) |
| ## Test case checks we do not crash. |
| |
| # WARN: warning: relocation refers to a discarded section: .text.bar1 |
| # WARN-NEXT: >>> referenced by {{.*}}.o:(.rela.text.bar2+0x0) |
| # WARN-NOT: warning |
| |
| # RELOC: .rela.eh_frame { |
| # RELOC-NEXT: R_X86_64_NONE |
| # RELOC-NEXT: } |
| # RELOC-NEXT: .rela.debug_foo { |
| # RELOC-NEXT: R_X86_64_NONE |
| # RELOC-NEXT: } |
| # RELOC-NEXT: .rela.gcc_except_table { |
| # RELOC-NEXT: R_X86_64_NONE |
| # RELOC-NEXT: } |
| |
| .globl group |
| group: |
| .section .text.bar1,"aG",@progbits,group,comdat |
| |
| ## .text.bar1 in this file is discarded. Warn on the relocation. |
| .section .text.bar2,"ax" |
| .globl bar |
| bar: |
| .quad .text.bar1 |
| |
| ## Don't warn on .eh_frame, .debug*, .zdebug*, or .gcc_except_table |
| .section .eh_frame,"a",@unwind |
| .quad .text.bar1 |
| |
| .section .debug_foo |
| .quad .text.bar1 |
| |
| .section .gcc_except_table,"a" |
| .quad .text.bar1 |