lld/test/MachO/stabs-icf.s

   1 # REQUIRES: x86
   2 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %s -o %t.o
   3
   4 # RUN: %lld -lSystem --icf=all %t.o -o %t
   5 # RUN: dsymutil -s %t | FileCheck %s -DDIR=%t -DSRC_PATH=%t.o
   6
   7 ## This should include no N_FUN entry for _baz (which is ICF'd into _bar),
   8 ## but it does include a SECT EXT entry.
   9 ## NOTE: We do not omit the N_FUN entry for _bar even though it is of size zero.
  10 ##       Only folded symbols get omitted.
  11 ## NOTE: Unlike ld64, we also omit the N_FUN entry for _baz2.
  12 # CHECK:      (N_SO         ) 00      0000   0000000000000000  '/tmp{{[/\\]}}test.cpp'
  13 # CHECK-NEXT: (N_OSO        ) 03      0001   {{.*}} '[[SRC_PATH]]'
  14 # CHECK-NEXT: (N_FUN        ) 01      0000   [[#%.16x,MAIN:]]  '_main'
  15 # CHECK-NEXT: (N_FUN        ) 00      0000   000000000000000b{{$}}
  16 # CHECK-NEXT: (N_FUN        ) 01      0000   [[#%.16x,BAR:]]   '_bar'
  17 # CHECK-NEXT: (N_FUN        ) 00      0000   0000000000000000{{$}}
  18 # CHECK-NEXT: (N_FUN        ) 01      0000   [[#BAR]]          '_bar2'
  19 # CHECK-NEXT: (N_FUN        ) 00      0000   0000000000000001{{$}}
  20 # CHECK-NEXT: (N_SO         ) 01      0000   0000000000000000{{$}}
  21 # CHECK-DAG:  (     SECT EXT) 01      0000   [[#MAIN]]         '_main'
  22 # CHECK-DAG:  (     SECT EXT) 01      0000   [[#BAR]]          '_bar'
  23 # CHECK-DAG:  (     SECT EXT) 01      0000   [[#BAR]]          '_bar2'
  24 # CHECK-DAG:  (     SECT EXT) 01      0000   [[#BAR]]          '_baz'
  25 # CHECK-DAG:  (     SECT EXT) 01      0000   [[#BAR]]          '_baz2'
  26 # CHECK-DAG:  (       {{.*}}) {{[0-9]+}}                 0010   {{[0-9a-f]+}}      '__mh_execute_header'
  27 # CHECK-DAG:  (       {{.*}}) {{[0-9]+}}                 0100   0000000000000000   'dyld_stub_binder'
  28 # CHECK-EMPTY:
  29
  30 .text
  31 .globl _bar, _bar2, _baz, _baz2, _main
  32
  33 .subsections_via_symbols
  34
  35 _bar:
  36 _bar2:
  37   ret
  38
  39 _baz:
  40 _baz2:
  41   ret
  42
  43 _main:
  44 Lfunc_begin0:
  45   call _bar
  46   call _baz
  47   ret
  48 Lfunc_end0:
  49
  50 .section  __DWARF,__debug_str,regular,debug
  51   .asciz  "test.cpp"             ## string offset=0
  52   .asciz  "/tmp"                 ## string offset=9
  53 .section  __DWARF,__debug_abbrev,regular,debug
  54 Lsection_abbrev:
  55   .byte  1                       ## Abbreviation Code
  56   .byte  17                      ## DW_TAG_compile_unit
  57   .byte  1                       ## DW_CHILDREN_yes
  58   .byte  3                       ## DW_AT_name
  59   .byte  14                      ## DW_FORM_strp
  60   .byte  27                      ## DW_AT_comp_dir
  61   .byte  14                      ## DW_FORM_strp
  62   .byte  17                      ## DW_AT_low_pc
  63   .byte  1                       ## DW_FORM_addr
  64   .byte  18                      ## DW_AT_high_pc
  65   .byte  6                       ## DW_FORM_data4
  66   .byte  0                       ## EOM(1)
  67   .byte  0                       ## EOM(2)
  68   .byte  0                       ## EOM(3)
  69 .section  __DWARF,__debug_info,regular,debug
  70 .set Lset0, Ldebug_info_end0-Ldebug_info_start0 ## Length of Unit
  71   .long  Lset0
  72 Ldebug_info_start0:
  73   .short  4                       ## DWARF version number
  74 .set Lset1, Lsection_abbrev-Lsection_abbrev ## Offset Into Abbrev. Section
  75   .long  Lset1
  76   .byte  8                       ## Address Size (in bytes)
  77   .byte  1                       ## Abbrev [1] 0xb:0x48 DW_TAG_compile_unit
  78   .long  0                       ## DW_AT_name
  79   .long  9                       ## DW_AT_comp_dir
  80   .quad  Lfunc_begin0            ## DW_AT_low_pc
  81 .set Lset3, Lfunc_end0-Lfunc_begin0     ## DW_AT_high_pc
  82   .long  Lset3
  83   .byte  0                       ## End Of Children Mark
  84 Ldebug_info_end0: