lld/test/ELF/resolution.s

   1 // REQUIRES: x86
   2 // RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t
   3 // RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/resolution.s -o %t2
   4 // RUN: ld.lld -discard-all %t %t2 -o %t3
   5 // RUN: llvm-readelf --symbols %t3 | FileCheck %s
   6
   7 // This is an exhaustive test for checking which symbol is kept when two
   8 // have the same name. Each symbol has a different size which is used
   9 // to see which one was chosen.
  10
  11 // CHECK:      Symbol table '.symtab' contains 23 entries:
  12 // CHECK-NEXT:  Size Type    Bind   Vis       Ndx Name
  13 // CHECK-NEXT:     0 NOTYPE  LOCAL  DEFAULT   UND
  14 // CHECK-NEXT:     0 NOTYPE  GLOBAL DEFAULT     1 _start
  15 // CHECK-NEXT:     0 NOTYPE  WEAK   DEFAULT     1 RegularWeak_with_RegularWeak
  16 // CHECK-NEXT:    33 NOTYPE  GLOBAL DEFAULT     1 RegularWeak_with_RegularStrong
  17 // CHECK-NEXT:     2 NOTYPE  GLOBAL DEFAULT     1 RegularStrong_with_RegularWeak
  18 // CHECK-NEXT:     3 NOTYPE  WEAK   DEFAULT     1 RegularWeak_with_UndefWeak
  19 // CHECK-NEXT:     4 NOTYPE  WEAK   DEFAULT     1 RegularWeak_with_UndefStrong
  20 // CHECK-NEXT:     5 NOTYPE  GLOBAL DEFAULT     1 RegularStrong_with_UndefWeak
  21 // CHECK-NEXT:     6 NOTYPE  GLOBAL DEFAULT     1 RegularStrong_with_UndefStrong
  22 // CHECK-NEXT:    40 OBJECT  GLOBAL DEFAULT     2 RegularWeak_with_CommonStrong
  23 // CHECK-NEXT:    10 NOTYPE  GLOBAL DEFAULT     1 RegularStrong_with_CommonStrong
  24 // CHECK-NEXT:    43 NOTYPE  WEAK   DEFAULT     1 UndefWeak_with_RegularWeak
  25 // CHECK-NEXT:    44 NOTYPE  GLOBAL DEFAULT     1 UndefWeak_with_RegularStrong
  26 // CHECK-NEXT:    45 NOTYPE  WEAK   DEFAULT     1 UndefStrong_with_RegularWeak
  27 // CHECK-NEXT:    46 NOTYPE  GLOBAL DEFAULT     1 UndefStrong_with_RegularStrong
  28 // CHECK-NEXT:     0 NOTYPE  WEAK   DEFAULT   UND UndefWeak_with_UndefWeak
  29 // CHECK-NEXT:    49 OBJECT  GLOBAL DEFAULT     2 UndefWeak_with_CommonStrong
  30 // CHECK-NEXT:    51 OBJECT  GLOBAL DEFAULT     2 UndefStrong_with_CommonStrong
  31 // CHECK-NEXT:    22 OBJECT  GLOBAL DEFAULT     2 CommonStrong_with_RegularWeak
  32 // CHECK-NEXT:    55 NOTYPE  GLOBAL DEFAULT     1 CommonStrong_with_RegularStrong
  33 // CHECK-NEXT:    26 OBJECT  GLOBAL DEFAULT     2 CommonStrong_with_UndefWeak
  34 // CHECK-NEXT:    27 OBJECT  GLOBAL DEFAULT     2 CommonStrong_with_UndefStrong
  35 // CHECK-NEXT:    63 OBJECT  GLOBAL DEFAULT     2 CommonStrong_with_CommonStrong
  36
  37 .globl _start
  38 _start:
  39         nop
  40
  41 local:
  42
  43 .weak RegularWeak_with_RegularWeak
  44 .size RegularWeak_with_RegularWeak, 0
  45 RegularWeak_with_RegularWeak:
  46
  47 .weak RegularWeak_with_RegularStrong
  48 .size RegularWeak_with_RegularStrong, 1
  49 RegularWeak_with_RegularStrong:
  50
  51 .global RegularStrong_with_RegularWeak
  52 .size RegularStrong_with_RegularWeak, 2
  53 RegularStrong_with_RegularWeak:
  54
  55 .weak RegularWeak_with_UndefWeak
  56 .size RegularWeak_with_UndefWeak, 3
  57 RegularWeak_with_UndefWeak:
  58
  59 .weak RegularWeak_with_UndefStrong
  60 .size RegularWeak_with_UndefStrong, 4
  61 RegularWeak_with_UndefStrong:
  62
  63 .global RegularStrong_with_UndefWeak
  64 .size RegularStrong_with_UndefWeak, 5
  65 RegularStrong_with_UndefWeak:
  66
  67 .global RegularStrong_with_UndefStrong
  68 .size RegularStrong_with_UndefStrong, 6
  69 RegularStrong_with_UndefStrong:
  70
  71 .weak RegularWeak_with_CommonStrong
  72 .size RegularWeak_with_CommonStrong, 8
  73 RegularWeak_with_CommonStrong:
  74
  75 .global RegularStrong_with_CommonStrong
  76 .size RegularStrong_with_CommonStrong, 10
  77 RegularStrong_with_CommonStrong:
  78
  79 .weak UndefWeak_with_RegularWeak
  80 .size UndefWeak_with_RegularWeak, 11
  81 .quad UndefWeak_with_RegularWeak
  82
  83 .weak UndefWeak_with_RegularStrong
  84 .size UndefWeak_with_RegularStrong, 12
  85 .quad UndefWeak_with_RegularStrong
  86
  87 .size UndefStrong_with_RegularWeak, 13
  88 .quad UndefStrong_with_RegularWeak
  89
  90 .size UndefStrong_with_RegularStrong, 14
  91 .quad UndefStrong_with_RegularStrong
  92
  93 .weak UndefWeak_with_UndefWeak
  94 .size UndefWeak_with_UndefWeak, 15
  95 .quad UndefWeak_with_UndefWeak
  96
  97 .weak UndefWeak_with_CommonStrong
  98 .size UndefWeak_with_CommonStrong, 17
  99 .quad UndefWeak_with_CommonStrong
 100
 101 .size UndefStrong_with_CommonStrong, 19
 102 .quad UndefStrong_with_CommonStrong
 103
 104 .comm CommonStrong_with_RegularWeak,22,4
 105
 106 .comm CommonStrong_with_RegularStrong,23,4
 107
 108 .comm CommonStrong_with_UndefWeak,26,4
 109
 110 .comm CommonStrong_with_UndefStrong,27,4
 111
 112 .comm CommonStrong_with_CommonStrong,31,4