test/ELF/merge-string.s

   1 // REQUIRES: x86
   2 // RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
   3 // RUN: ld.lld -O 2 %t.o -o %t.so -shared
   4 // RUN: llvm-readobj -s -section-data -t %t.so | FileCheck %s
   5 // RUN: ld.lld -O 1 %t.o -o %t.so -shared
   6 // RUN: llvm-readobj -s -section-data -t %t.so | FileCheck --check-prefix=NOTAIL %s
   7 // RUN: ld.lld -O 0 %t.o -o %t.so -shared
   8 // RUN: llvm-readobj -s -section-data -t %t.so | FileCheck --check-prefix=NOMERGE %s
   9
  10         .section        .rodata1,"aMS",@progbits,1
  11         .asciz  "abc"
  12 foo:
  13         .ascii  "a"
  14 bar:
  15         .asciz  "bc"
  16         .asciz  "bc"
  17
  18         .section        .rodata2,"aMS",@progbits,2
  19         .align  2
  20 zed:
  21         .short  20
  22         .short  0
  23
  24 // CHECK:      Name:    .rodata1
  25 // CHECK-NEXT: Type:    SHT_PROGBITS
  26 // CHECK-NEXT: Flags [
  27 // CHECK-NEXT:   SHF_ALLOC
  28 // CHECK-NEXT:   SHF_MERGE
  29 // CHECK-NEXT:   SHF_STRINGS
  30 // CHECK-NEXT: ]
  31 // CHECK-NEXT: Address: 0x20D
  32 // CHECK-NEXT: Offset: 0x20D
  33 // CHECK-NEXT: Size:    4
  34 // CHECK-NEXT: Link: 0
  35 // CHECK-NEXT: Info: 0
  36 // CHECK-NEXT: AddressAlignment: 1
  37 // CHECK-NEXT: EntrySize: 1
  38 // CHECK-NEXT: SectionData (
  39 // CHECK-NEXT:   0000: 61626300                             |abc.|
  40 // CHECK-NEXT: )
  41
  42 // NOTAIL:      Name:    .rodata1
  43 // NOTAIL-NEXT: Type:    SHT_PROGBITS
  44 // NOTAIL-NEXT: Flags [
  45 // NOTAIL-NEXT:   SHF_ALLOC
  46 // NOTAIL-NEXT:   SHF_MERGE
  47 // NOTAIL-NEXT:   SHF_STRINGS
  48 // NOTAIL-NEXT: ]
  49 // NOTAIL-NEXT: Address: 0x20D
  50 // NOTAIL-NEXT: Offset: 0x20D
  51 // NOTAIL-NEXT: Size:    7
  52 // NOTAIL-NEXT: Link: 0
  53 // NOTAIL-NEXT: Info: 0
  54 // NOTAIL-NEXT: AddressAlignment: 1
  55 // NOTAIL-NEXT: EntrySize: 1
  56 // NOTAIL-NEXT: SectionData (
  57 // NOTAIL-NEXT:   0000: 62630061 626300                     |bc.abc.|
  58 // NOTAIL-NEXT: )
  59
  60 // NOMERGE:      Name:    .rodata1
  61 // NOMERGE-NEXT: Type:    SHT_PROGBITS
  62 // NOMERGE-NEXT: Flags [
  63 // NOMERGE-NEXT:   SHF_ALLOC
  64 // NOMERGE-NEXT:   SHF_MERGE
  65 // NOMERGE-NEXT:   SHF_STRINGS
  66 // NOMERGE-NEXT: ]
  67 // NOMERGE-NEXT: Address: 0x20D
  68 // NOMERGE-NEXT: Offset: 0x20D
  69 // NOMERGE-NEXT: Size:    11
  70 // NOMERGE-NEXT: Link: 0
  71 // NOMERGE-NEXT: Info: 0
  72 // NOMERGE-NEXT: AddressAlignment: 1
  73 // NOMERGE-NEXT: EntrySize: 1
  74 // NOMERGE-NEXT: SectionData (
  75 // NOMERGE-NEXT:   0000: 61626300 61626300 626300 |abc.abc.bc.|
  76 // NOMERGE-NEXT: )
  77
  78 // CHECK:      Name: .rodata2
  79 // CHECK-NEXT: Type: SHT_PROGBITS
  80 // CHECK-NEXT: Flags [
  81 // CHECK-NEXT:   SHF_ALLOC
  82 // CHECK-NEXT:   SHF_MERGE
  83 // CHECK-NEXT:   SHF_STRINGS
  84 // CHECK-NEXT: ]
  85 // CHECK-NEXT: Address: 0x212
  86 // CHECK-NEXT: Offset: 0x212
  87 // CHECK-NEXT: Size: 4
  88 // CHECK-NEXT: Link: 0
  89 // CHECK-NEXT: Info: 0
  90 // CHECK-NEXT: AddressAlignment: 2
  91 // CHECK-NEXT: EntrySize: 2
  92 // CHECK-NEXT: SectionData (
  93 // CHECK-NEXT:   0000: 14000000                             |....|
  94 // CHECK-NEXT: )
  95
  96
  97 // CHECK:      Name:    bar
  98 // CHECK-NEXT: Value: 0x20E
  99
 100 // CHECK:      Name:    foo
 101 // CHECK-NEXT: Value: 0x20D
 102
 103 // CHECK:      Name: zed
 104 // CHECK-NEXT: Value: 0x212
 105 // CHECK-NEXT: Size: 0