lld/test/MachO/fold-dwarf-lsda.s

   1 # REQUIRES: x86
   2 ## Regression test for https://github.com/llvm/llvm-project/issues/63039
   3
   4 ## Use an old version to ensure we do *not* have any compact-unwind.
   5 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-macos9 %s -o %t.o
   6
   7 ## Pre-cond: smoke-check that there is really no compact-unwind entries - only dwarfs.
   8 # RUN: llvm-objdump --macho --unwind-info --dwarf=frames %t.o | FileCheck %s --check-prefix=PRE
   9 # PRE-NOT: Contents of __compact_unwind section:
  10 # PRE-NOT: Entry at offset
  11 # PRE: .eh_frame contents:
  12 # PRE: {{[0-9a-f]+}} {{.*}} CIE
  13 # PRE:   Format:                DWARF32
  14 # PRE:   Version:               1
  15
  16 ## Link should succeed (ie., not crashed due to bug in icf code).
  17 # RUN: %lld -lSystem -lc++ --icf=all -arch x86_64 -arch x86_64 -platform_version macos 11.0 11.0 %t.o -o %t.out
  18
  19 ## Post-cond: verify that the final binary has expected eh-frame contents.
  20 # RUN: llvm-objdump --macho --syms --dwarf=frames %t.out | FileCheck %s --check-prefix=POST
  21 # POST-LABEL: SYMBOL TABLE:
  22 # POST: [[#%x,EXCEPT_ADDR:]] l   O __TEXT,__gcc_except_tab GCC_except_table0
  23 # POST: [[#%x,EXCEPT_ADDR]]  l   O __TEXT,__gcc_except_tab GCC_except_table1
  24 # POST: [[#%.16x,F0_ADDR:]]  g   F __TEXT,__text _f0
  25 # POST: [[#%.16x,F1_ADDR:]]  g   F __TEXT,__text _f1
  26 # POST: [[#%.16x,G_ADDR:]]   g   F __TEXT,__text _g
  27
  28 # POST-LABEL: .eh_frame contents:
  29 # POST: {{.*}} FDE cie={{.+}} pc=[[#%x,G_ADDR]]...{{.+}}
  30
  31 # POST: {{.*}} FDE cie={{.+}} pc=[[#%x,F0_ADDR]]...{{.+}}
  32 # POST: Format:       DWARF32
  33 # POST: LSDA Address: [[#%.16x,EXCEPT_ADDR]]
  34
  35 # POST: {{.*}} FDE cie={{.+}} pc=[[#%x,F1_ADDR]]...{{.+}}
  36 # POST Format:       DWARF32
  37 # POST LSDA Address: [[#%.16x,EXCEPT_ADDR]]
  38
  39         .section        __TEXT,__text,regular,pure_instructions
  40         .globl  _f0
  41 _f0:
  42         .cfi_startproc
  43         .cfi_lsda 16, Lexception0
  44         .cfi_def_cfa_offset 16
  45         .cfi_offset %rbp, -16
  46         callq   _g
  47         retq
  48         .cfi_endproc
  49
  50         .section        __TEXT,__gcc_except_tab
  51 GCC_except_table0:
  52 Lexception0:
  53         .byte   255
  54
  55         .section        __TEXT,__text,regular,pure_instructions
  56         .globl  _f1
  57 _f1:
  58         .cfi_startproc
  59         .cfi_lsda 16, Lexception1
  60         .cfi_def_cfa_offset 16
  61         .cfi_offset %rbp, -16
  62         callq   _g
  63         retq
  64         .cfi_endproc
  65
  66         .section        __TEXT,__gcc_except_tab
  67 GCC_except_table1:
  68 Lexception1:
  69         .byte   255
  70
  71         .section        __TEXT,__text,regular,pure_instructions
  72         .globl  _g
  73 _g:
  74         .cfi_startproc
  75         .cfi_def_cfa_offset 16
  76         .cfi_offset %rbp, -16
  77         .cfi_def_cfa_register %rbp
  78         retq
  79         .cfi_endproc
  80
  81         .section        __TEXT,__text,regular,pure_instructions
  82         .globl  _main
  83 _main:
  84         retq
  85
  86 .subsections_via_symbols