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 // RUN: llvm-mc -filetype=obj -triple=armv7aeb-none-linux-gnueabi -mcpu=cortex-a8 %s -o %t
   9 // RUN: llvm-mc -filetype=obj -triple=armv7aeb-none-linux-gnueabi -mcpu=cortex-a8 %S/Inputs/arm-exidx-cantunwind.s -o %tcantunwind
  10 // Check that relocatable link maintains SHF_LINK_ORDER for big endian
  11 // RUN: ld.lld -r %t %tcantunwind -o %t4
  12 // RUN: llvm-readobj -S %t4 | FileCheck %s
  13 // RUN: ld.lld --be8 -r %t %tcantunwind -o %t4
  14 // RUN: llvm-readobj -S %t4 | FileCheck %s
  15
  16 // Each assembler created .ARM.exidx section has the SHF_LINK_ORDER flag set
  17 // with the sh_link containing the section index of the executable section
  18 // containing the function it describes. To maintain this property in
  19 // relocatable links we pass through the .ARM.exidx section, the section it
  20 // it has a sh_link to, and the associated relocation sections uncombined.
  21
  22  .syntax unified
  23  .section .text, "ax",%progbits
  24  .globl _start
  25 _start:
  26  .fnstart
  27  bx lr
  28  .cantunwind
  29  .fnend
  30
  31  .section .text.f1, "ax", %progbits
  32  .globl f1
  33 f1:
  34  .fnstart
  35  bx lr
  36  .cantunwind
  37  .fnend
  38
  39  .section .text.f2, "ax", %progbits
  40  .globl f2
  41 f2:
  42  .fnstart
  43  bx lr
  44  .cantunwind
  45  .fnend
  46  .globl f3
  47 f3:
  48  .fnstart
  49  bx lr
  50  .cantunwind
  51  .fnend
  52
  53 // CHECK:         Index: 1
  54 // CHECK-NEXT:    Name: .text
  55
  56 // CHECK:         Name: .ARM.exidx
  57 // CHECK-NEXT:    Type: SHT_ARM_EXIDX (0x70000001)
  58 // CHECK-NEXT:    Flags [ (0x82)
  59 // CHECK-NEXT:      SHF_ALLOC (0x2)
  60 // CHECK-NEXT:      SHF_LINK_ORDER (0x80)
  61 // CHECK-NEXT:    ]
  62 // CHECK-NEXT:    Address
  63 // CHECK-NEXT:    Offset:
  64 // CHECK-NEXT:    Size: 24
  65 // CHECK-NEXT:    Link: 1
  66
  67
  68 // CHECK:         Index: 4
  69 // CHECK-NEXT:    Name: .text.f1
  70
  71 // CHECK:         Name: .ARM.exidx.text.f1
  72 // CHECK-NEXT:    Type: SHT_ARM_EXIDX (0x70000001)
  73 // CHECK-NEXT:    Flags [ (0x82)
  74 // CHECK-NEXT:      SHF_ALLOC (0x2)
  75 // CHECK-NEXT:      SHF_LINK_ORDER (0x80)
  76 // CHECK-NEXT:    ]
  77 // CHECK-NEXT:    Address
  78 // CHECK-NEXT:    Offset:
  79 // CHECK-NEXT:    Size: 8
  80 // CHECK-NEXT:    Link: 4
  81
  82
  83 // CHECK:         Index: 7
  84 // CHECK-NEXT:    Name: .text.f2
  85
  86 // CHECK:         Name: .ARM.exidx.text.f2
  87 // CHECK-NEXT:    Type: SHT_ARM_EXIDX (0x70000001)
  88 // CHECK-NEXT:    Flags [ (0x82)
  89 // CHECK-NEXT:      SHF_ALLOC (0x2)
  90 // CHECK-NEXT:      SHF_LINK_ORDER (0x80)
  91 // CHECK-NEXT:    ]
  92 // CHECK-NEXT:    Address
  93 // CHECK-NEXT:    Offset:
  94 // CHECK-NEXT:    Size: 16
  95 // CHECK-NEXT:    Link: 7
  96
  97
  98 // CHECK:         Index: 10
  99 // CHECK-NEXT:    Name: .func1
 100
 101 // CHECK:         Name: .ARM.exidx.func1
 102 // CHECK-NEXT:    Type: SHT_ARM_EXIDX (0x70000001)
 103 // CHECK-NEXT:    Flags [ (0x82)
 104 // CHECK-NEXT:      SHF_ALLOC (0x2)
 105 // CHECK-NEXT:      SHF_LINK_ORDER (0x80)
 106 // CHECK-NEXT:    ]
 107 // CHECK-NEXT:    Address
 108 // CHECK-NEXT:    Offset:
 109 // CHECK-NEXT:    Size: 8
 110 // CHECK-NEXT:    Link: 10
 111
 112
 113 // CHECK:         Index: 13
 114 // CHECK-NEXT:    Name: .func2
 115
 116 // CHECK:         Name: .ARM.exidx.func2
 117 // CHECK-NEXT:    Type: SHT_ARM_EXIDX (0x70000001)
 118 // CHECK-NEXT:    Flags [ (0x82)
 119 // CHECK-NEXT:      SHF_ALLOC (0x2)
 120 // CHECK-NEXT:      SHF_LINK_ORDER (0x80)
 121 // CHECK-NEXT:    ]
 122 // CHECK-NEXT:    Address
 123 // CHECK-NEXT:    Offset:
 124 // CHECK-NEXT:    Size: 8
 125 // CHECK-NEXT:    Link: 13
 126
 127
 128 // CHECK:         Index: 16
 129 // CHECK-NEXT:    Name: .func3
 130
 131 // CHECK:         Name: .ARM.exidx.func3
 132 // CHECK-NEXT:    Type: SHT_ARM_EXIDX (0x70000001)
 133 // CHECK-NEXT:    Flags [ (0x82)
 134 // CHECK-NEXT:      SHF_ALLOC (0x2)
 135 // CHECK-NEXT:      SHF_LINK_ORDER (0x80)
 136 // CHECK-NEXT:    ]
 137 // CHECK-NEXT:    Address
 138 // CHECK-NEXT:    Offset:
 139 // CHECK-NEXT:    Size: 8
 140 // CHECK-NEXT:    Link: 16