lld/test/MachO/cstring-dedup.s

   1 # REQUIRES: x86
   2 # RUN: rm -rf %t; split-file %s %t
   3 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/test.s -o %t/test.o
   4 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/more-foo.s -o %t/more-foo.o
   5 # RUN: %lld -dylib %t/test.o %t/more-foo.o -o %t/test
   6 # RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/test | \
   7 # RUN:   FileCheck %s --check-prefix=STR --implicit-check-not foo --implicit-check-not bar
   8 # RUN: llvm-objdump --macho --section="__DATA,ptrs" --syms %t/test | FileCheck %s
   9 # RUN: llvm-readobj --section-headers %t/test | FileCheck %s --check-prefix=HEADER
  10
  11 ## Make sure we only have 3 deduplicated strings in __cstring.
  12 # STR: Contents of (__TEXT,__cstring) section
  13 # STR: {{[[:xdigit:]]+}} foo
  14 # STR: {{[[:xdigit:]]+}} barbaz
  15 # STR: {{[[:xdigit:]]+}} {{$}}
  16
  17 ## Make sure both symbol and section relocations point to the right thing.
  18 # CHECK:      Contents of (__DATA,ptrs) section
  19 # CHECK-NEXT: __TEXT:__cstring:foo
  20 # CHECK-NEXT: __TEXT:__cstring:foo
  21 # CHECK-NEXT: __TEXT:__cstring:foo
  22 # CHECK-NEXT: __TEXT:__cstring:foo
  23 # CHECK-NEXT: __TEXT:__cstring:foo
  24 # CHECK-NEXT: __TEXT:__cstring:foo
  25 # CHECK-NEXT: __TEXT:__cstring:barbaz
  26 # CHECK-NEXT: __TEXT:__cstring:baz
  27 # CHECK-NEXT: __TEXT:__cstring:barbaz
  28 # CHECK-NEXT: __TEXT:__cstring:baz
  29 # CHECK-NEXT: __TEXT:__cstring:{{$}}
  30 # CHECK-NEXT: __TEXT:__cstring:{{$}}
  31
  32 ## Make sure the symbol addresses are correct too.
  33 # CHECK:     SYMBOL TABLE:
  34 # CHECK-DAG: [[#%.16x,FOO:]]  l     O __TEXT,__cstring _local_foo1
  35 # CHECK-DAG: [[#FOO]]         l     O __TEXT,__cstring _local_foo2
  36 # CHECK-DAG: [[#FOO]]         g     O __TEXT,__cstring _globl_foo1
  37 # CHECK-DAG: [[#FOO]]         g     O __TEXT,__cstring _globl_foo2
  38 # CHECK-DAG: [[#%.16x,BAR:]]  l     O __TEXT,__cstring _bar1
  39 # CHECK-DAG: [[#BAR]]         l     O __TEXT,__cstring _bar2
  40 # CHECK-DAG: [[#%.16x,ZERO:]] l     O __TEXT,__cstring _zero1
  41 # CHECK-DAG: [[#ZERO]]        l     O __TEXT,__cstring _zero2
  42
  43 ## Make sure we set the right alignment and flags.
  44 # HEADER:        Name: __cstring
  45 # HEADER-NEXT:   Segment: __TEXT
  46 # HEADER-NEXT:   Address:
  47 # HEADER-NEXT:   Size:
  48 # HEADER-NEXT:   Offset:
  49 # HEADER-NEXT:   Alignment: 4
  50 # HEADER-NEXT:   RelocationOffset:
  51 # HEADER-NEXT:   RelocationCount: 0
  52 # HEADER-NEXT:   Type: CStringLiterals
  53 # HEADER-NEXT:   Attributes [ (0x0)
  54 # HEADER-NEXT:   ]
  55 # HEADER-NEXT:   Reserved1: 0x0
  56 # HEADER-NEXT:   Reserved2: 0x0
  57 # HEADER-NEXT:   Reserved3: 0x0
  58
  59 #--- test.s
  60 .cstring
  61 .p2align 2
  62 _local_foo1:
  63   .asciz "foo"
  64 _local_foo2:
  65   .asciz "foo"
  66 L_.foo1:
  67   .asciz "foo"
  68 L_.foo2:
  69   .asciz "foo"
  70
  71 _bar1:
  72   .ascii "bar"
  73 _baz1:
  74   .asciz "baz"
  75 _bar2:
  76   .ascii "bar"
  77 _baz2:
  78   .asciz "baz"
  79
  80 _zero1:
  81   .asciz ""
  82 _zero2:
  83   .asciz ""
  84
  85 .section __DATA,ptrs,literal_pointers
  86 .quad L_.foo1
  87 .quad L_.foo2
  88 .quad _local_foo1
  89 .quad _local_foo2
  90 .quad _globl_foo1
  91 .quad _globl_foo2
  92 .quad _bar1
  93 .quad _baz1
  94 .quad _bar2
  95 .quad _baz2
  96 .quad _zero1
  97 .quad _zero2
  98
  99 #--- more-foo.s
 100 .globl _globl_foo1, _globl_foo2
 101 .cstring
 102 .p2align 4
 103 _globl_foo1:
 104   .asciz "foo"
 105 _globl_foo2:
 106   .asciz "foo"