lld/test/MachO/eh-frame-personality-dedup.s

   1 # REQUIRES: x86
   2 # RUN: rm -rf %t; split-file %s %t
   3 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin19.0.0 -emit-compact-unwind-non-canonical=true %t/eh-frame.s -o %t/eh-frame.o
   4 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin19.0.0 -emit-compact-unwind-non-canonical=true %t/cu.s -o %t/cu.o
   5 # RUN: %lld -dylib %t/cu.o %t/eh-frame.o -o %t/out
   6
   7 ## Sanity check: we want our input to contain a section (and not symbol)
   8 ## relocation for the personality reference.
   9 # RUN: llvm-readobj --relocations %t/cu.o | FileCheck %s --check-prefix=SECT-RELOC
  10 # SECT-RELOC:      Section __compact_unwind {
  11 # SECT-RELOC-NEXT:   __text
  12 # SECT-RELOC-NEXT:   __text
  13 # SECT-RELOC-NEXT: }
  14
  15 ## Verify that the personality referenced via a symbol reloc in eh-frame.s gets
  16 ## dedup'ed with the personality referenced via a section reloc in cu.s.
  17 # RUN: llvm-objdump --macho --unwind-info %t/out | FileCheck %s
  18 # CHECK: Personality functions: (count = 1)
  19
  20 #--- eh-frame.s
  21 _fun:
  22   .cfi_startproc
  23   .cfi_personality 155, _my_personality
  24   ## cfi_escape cannot be encoded in compact unwind
  25   .cfi_escape 0
  26   ret
  27   .cfi_endproc
  28
  29 .subsections_via_symbols
  30
  31 #--- cu.s
  32 .globl _my_personality
  33 _fun:
  34   .cfi_startproc
  35   .cfi_personality 155, _my_personality
  36   .cfi_def_cfa_offset 16
  37   ret
  38   .cfi_endproc
  39
  40 _my_personality:
  41   nop
  42
  43 .subsections_via_symbols