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150
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1 # REQUIRES: x86
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2 # RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
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3 # RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/comdat-discarded-reloc.s -o %t2.o
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4 # RUN: ld.lld -gc-sections --noinhibit-exec %t2.o %t.o -o /dev/null
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5 # RUN: ld.lld -r %t2.o %t.o -o %t 2>&1 | FileCheck --check-prefix=WARN %s
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6 # RUN: llvm-readobj -r %t | FileCheck --check-prefix=RELOC %s
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7
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8 ## ELF spec doesn't allow a relocation to point to a deduplicated
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9 ## COMDAT section. Unfortunately this happens in practice (e.g. .eh_frame)
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10 ## Test case checks we do not crash.
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11
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12 # WARN: warning: relocation refers to a discarded section: .text.bar1
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13 # WARN-NEXT: >>> referenced by {{.*}}.o:(.rela.text.bar2+0x0)
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14 # WARN-NOT: warning
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15
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16 # RELOC: .rela.eh_frame {
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17 # RELOC-NEXT: R_X86_64_NONE
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18 # RELOC-NEXT: }
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19 # RELOC-NEXT: .rela.debug_foo {
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20 # RELOC-NEXT: R_X86_64_NONE
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21 # RELOC-NEXT: }
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22 # RELOC-NEXT: .rela.gcc_except_table {
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23 # RELOC-NEXT: R_X86_64_NONE
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24 # RELOC-NEXT: }
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25
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26 .section .text.bar1,"aG",@progbits,group,comdat
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27
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28 ## .text.bar1 in this file is discarded. Warn on the relocation.
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29 .section .text.bar2,"ax"
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30 .globl bar
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31 bar:
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32 .quad .text.bar1
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33
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34 ## Don't warn on .eh_frame, .debug*, .zdebug*, or .gcc_except_table
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173
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35 .section .eh_frame,"a",@unwind
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150
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36 .quad .text.bar1
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37
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38 .section .debug_foo
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39 .quad .text.bar1
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40
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41 .section .gcc_except_table,"a"
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42 .quad .text.bar1
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