lld/test/ELF/merge-reloc.s

   1 # REQUIRES: x86
   2 # RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
   3 # RUN: ld.lld %t.o -r -o %t-rel
   4 # RUN: llvm-readobj -S --section-data %t-rel | FileCheck %s
   5
   6 # When linker generates a relocatable object it does string merging in the same
   7 # way as for regular link. It should keep SHF_MERGE flag and set proper sh_entsize
   8 # value so that final link can perform the final merging optimization.
   9
  10 # CHECK:      Section {
  11 # CHECK:        Index:
  12 # CHECK:        Name: .rodata.1 (
  13 # CHECK-NEXT:   Type: SHT_PROGBITS
  14 # CHECK-NEXT:   Flags [
  15 # CHECK-NEXT:     SHF_ALLOC
  16 # CHECK-NEXT:     SHF_MERGE
  17 # CHECK-NEXT:   ]
  18 # CHECK-NEXT:   Address:
  19 # CHECK-NEXT:   Offset:
  20 # CHECK-NEXT:   Size: 4
  21 # CHECK-NEXT:   Link: 0
  22 # CHECK-NEXT:   Info: 0
  23 # CHECK-NEXT:   AddressAlignment: 4
  24 # CHECK-NEXT:   EntrySize: 4
  25 # CHECK-NEXT:   SectionData (
  26 # CHECK-NEXT:     0000: 42000000
  27 # CHECK-NEXT:   )
  28 # CHECK-NEXT: }
  29 # CHECK:      Section {
  30 # CHECK:        Index:
  31 # CHECK:        Name: .rodata.2 (
  32 # CHECK-NEXT:   Type: SHT_PROGBITS
  33 # CHECK-NEXT:   Flags [
  34 # CHECK-NEXT:     SHF_ALLOC
  35 # CHECK-NEXT:     SHF_MERGE
  36 # CHECK-NEXT:   ]
  37 # CHECK-NEXT:   Address:
  38 # CHECK-NEXT:   Offset:
  39 # CHECK-NEXT:   Size: 8
  40 # CHECK-NEXT:   Link: 0
  41 # CHECK-NEXT:   Info: 0
  42 # CHECK-NEXT:   AddressAlignment: 8
  43 # CHECK-NEXT:   EntrySize: 8
  44 # CHECK-NEXT:   SectionData (
  45 # CHECK-NEXT:     0000: 42000000 42000000
  46 # CHECK-NEXT:   )
  47 # CHECK-NEXT: }
  48 # CHECK:      Section {
  49 # CHECK:        Index:
  50 # CHECK:        Name: .data
  51 # CHECK-NEXT:   Type: SHT_PROGBITS
  52 # CHECK-NEXT:   Flags [
  53 # CHECK-NEXT:     SHF_ALLOC
  54 # CHECK-NEXT:     SHF_WRITE
  55 # CHECK-NEXT:   ]
  56 # CHECK-NEXT:   Address:
  57 # CHECK-NEXT:   Offset:
  58 # CHECK-NEXT:   Size: 16
  59 # CHECK-NEXT:   Link: 0
  60 # CHECK-NEXT:   Info: 0
  61 # CHECK-NEXT:   AddressAlignment: 1
  62 # CHECK-NEXT:   EntrySize: 0
  63 # CHECK-NEXT:   SectionData (
  64 # CHECK-NEXT:     0000: 42000000 42000000 42000000 42000000
  65 # CHECK-NEXT:   )
  66 # CHECK-NEXT: }
  67
  68         .section        .rodata.1,"aM",@progbits,4
  69         .align  4
  70         .global foo
  71 foo:
  72         .long   0x42
  73         .long   0x42
  74         .long   0x42
  75
  76         .section        .rodata.2,"aM",@progbits,8
  77         .align  8
  78         .global bar
  79 bar:
  80         .long   0x42
  81         .long   0x42
  82         .long   0x42
  83         .long   0x42
  84
  85         .data
  86         .global gar
  87 zed:
  88         .long   0x42
  89         .long   0x42
  90         .long   0x42
  91         .long   0x42