lld/test/ELF/arm-exidx-relocatable.s

   1 // REQUIRES: arm
   2 // RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t
   3 // RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %S/Inputs/arm-exidx-cantunwind.s -o %tcantunwind
   4 // Check that relocatable link maintains SHF_LINK_ORDER
   5 // RUN: ld.lld -r %t %tcantunwind -o %t4
   6 // RUN: llvm-readobj -S %t4 | FileCheck %s
   7
   8 // Each assembler created .ARM.exidx section has the SHF_LINK_ORDER flag set
   9 // with the sh_link containing the section index of the executable section
  10 // containing the function it describes. To maintain this property in
  11 // relocatable links we pass through the .ARM.exidx section, the section it
  12 // it has a sh_link to, and the associated relocation sections uncombined.
  13
  14  .syntax unified
  15  .section .text, "ax",%progbits
  16  .globl _start
  17 _start:
  18  .fnstart
  19  bx lr
  20  .cantunwind
  21  .fnend
  22
  23  .section .text.f1, "ax", %progbits
  24  .globl f1
  25 f1:
  26  .fnstart
  27  bx lr
  28  .cantunwind
  29  .fnend
  30
  31  .section .text.f2, "ax", %progbits
  32  .globl f2
  33 f2:
  34  .fnstart
  35  bx lr
  36  .cantunwind
  37  .fnend
  38  .globl f3
  39 f3:
  40  .fnstart
  41  bx lr
  42  .cantunwind
  43  .fnend
  44
  45 // CHECK:         Index: 1
  46 // CHECK-NEXT:    Name: .text
  47
  48 // CHECK:         Name: .ARM.exidx
  49 // CHECK-NEXT:    Type: SHT_ARM_EXIDX (0x70000001)
  50 // CHECK-NEXT:    Flags [ (0x82)
  51 // CHECK-NEXT:      SHF_ALLOC (0x2)
  52 // CHECK-NEXT:      SHF_LINK_ORDER (0x80)
  53 // CHECK-NEXT:    ]
  54 // CHECK-NEXT:    Address
  55 // CHECK-NEXT:    Offset:
  56 // CHECK-NEXT:    Size: 24
  57 // CHECK-NEXT:    Link: 1
  58
  59
  60 // CHECK:         Index: 4
  61 // CHECK-NEXT:    Name: .text.f1
  62
  63 // CHECK:         Name: .ARM.exidx.text.f1
  64 // CHECK-NEXT:    Type: SHT_ARM_EXIDX (0x70000001)
  65 // CHECK-NEXT:    Flags [ (0x82)
  66 // CHECK-NEXT:      SHF_ALLOC (0x2)
  67 // CHECK-NEXT:      SHF_LINK_ORDER (0x80)
  68 // CHECK-NEXT:    ]
  69 // CHECK-NEXT:    Address
  70 // CHECK-NEXT:    Offset:
  71 // CHECK-NEXT:    Size: 8
  72 // CHECK-NEXT:    Link: 4
  73
  74
  75 // CHECK:         Index: 7
  76 // CHECK-NEXT:    Name: .text.f2
  77
  78 // CHECK:         Name: .ARM.exidx.text.f2
  79 // CHECK-NEXT:    Type: SHT_ARM_EXIDX (0x70000001)
  80 // CHECK-NEXT:    Flags [ (0x82)
  81 // CHECK-NEXT:      SHF_ALLOC (0x2)
  82 // CHECK-NEXT:      SHF_LINK_ORDER (0x80)
  83 // CHECK-NEXT:    ]
  84 // CHECK-NEXT:    Address
  85 // CHECK-NEXT:    Offset:
  86 // CHECK-NEXT:    Size: 16
  87 // CHECK-NEXT:    Link: 7
  88
  89
  90 // CHECK:         Index: 10
  91 // CHECK-NEXT:    Name: .func1
  92
  93 // CHECK:         Name: .ARM.exidx.func1
  94 // CHECK-NEXT:    Type: SHT_ARM_EXIDX (0x70000001)
  95 // CHECK-NEXT:    Flags [ (0x82)
  96 // CHECK-NEXT:      SHF_ALLOC (0x2)
  97 // CHECK-NEXT:      SHF_LINK_ORDER (0x80)
  98 // CHECK-NEXT:    ]
  99 // CHECK-NEXT:    Address
 100 // CHECK-NEXT:    Offset:
 101 // CHECK-NEXT:    Size: 8
 102 // CHECK-NEXT:    Link: 10
 103
 104
 105 // CHECK:         Index: 13
 106 // CHECK-NEXT:    Name: .func2
 107
 108 // CHECK:         Name: .ARM.exidx.func2
 109 // CHECK-NEXT:    Type: SHT_ARM_EXIDX (0x70000001)
 110 // CHECK-NEXT:    Flags [ (0x82)
 111 // CHECK-NEXT:      SHF_ALLOC (0x2)
 112 // CHECK-NEXT:      SHF_LINK_ORDER (0x80)
 113 // CHECK-NEXT:    ]
 114 // CHECK-NEXT:    Address
 115 // CHECK-NEXT:    Offset:
 116 // CHECK-NEXT:    Size: 8
 117 // CHECK-NEXT:    Link: 13
 118
 119
 120 // CHECK:         Index: 16
 121 // CHECK-NEXT:    Name: .func3
 122
 123 // CHECK:         Name: .ARM.exidx.func3
 124 // CHECK-NEXT:    Type: SHT_ARM_EXIDX (0x70000001)
 125 // CHECK-NEXT:    Flags [ (0x82)
 126 // CHECK-NEXT:      SHF_ALLOC (0x2)
 127 // CHECK-NEXT:      SHF_LINK_ORDER (0x80)
 128 // CHECK-NEXT:    ]
 129 // CHECK-NEXT:    Address
 130 // CHECK-NEXT:    Offset:
 131 // CHECK-NEXT:    Size: 8
 132 // CHECK-NEXT:    Link: 16