test/MC/ARM/eh-directive-section-comdat.s

   1 @ RUN: llvm-mc %s -triple=armv7-unknown-linux-gnueabi -filetype=obj -o - \
   2 @ RUN:   | llvm-readobj -S --sd --sr --symbols | FileCheck %s
   3
   4 @ Check the .group section for the function in comdat section.
   5
   6 @ In C++, the instantiation of the template will come with linkonce (or
   7 @ linkonce_odr) linkage, so that the linker can remove the duplicated
   8 @ instantiation.  When the exception handling is enabled on those function,
   9 @ we have to group the corresponding .ARM.extab and .ARM.exidx with the
  10 @ text section together.
  11 @
  12 @ This test case will check the content of .group section.  The section index
  13 @ of the grouped sections should be recorded in .group section.
  14
  15         .syntax unified
  16         .section        .TEST1,"axG",%progbits,func1,comdat
  17         .weak   func1
  18         .align  2
  19         .type   func1,%function
  20 func1:
  21         .fnstart
  22         .save   {r4, lr}
  23         push    {r4, lr}
  24         .vsave  {d8, d9, d10, d11, d12}
  25         vpush   {d8, d9, d10, d11, d12}
  26         .pad    #24
  27         sub     sp, sp, #24
  28
  29         add     sp, sp, #24
  30         vpop    {d8, d9, d10, d11, d12}
  31         pop     {r4, pc}
  32
  33         .globl  __gxx_personality_v0
  34         .personality __gxx_personality_v0
  35         .handlerdata
  36         .fnend
  37
  38
  39
  40 @-------------------------------------------------------------------------------
  41 @ Check the .group section
  42 @-------------------------------------------------------------------------------
  43 @ CHECK: Sections [
  44 @ CHECK:   Section {
  45 @ CHECK:     Index: 1
  46 @ CHECK:     Name: .group
  47 @ CHECK:     Type: SHT_GROUP (0x11)
  48 @ CHECK:     Flags [ (0x0)
  49 @ CHECK:     ]
  50 @ CHECK:     Size: 24
  51 @ CHECK:     SectionData (
  52 @-------------------------------------------------------------------------------
  53 @ These are the section indexes of .TEST1, .ARM.extab.TEST1, .ARM.exidx.TEST1,
  54 @ .rel.ARM.extab.TEST1, and .rel.ARM.exidx.TEST1.
  55 @-------------------------------------------------------------------------------
  56 @ CHECK-NEXT:     0000: 01000000 04000000 05000000 06000000
  57 @ CHECK-NEXT:     0010: 07000000 08000000
  58 @ CHECK-NEXT:     )
  59 @ CHECK:   }
  60
  61
  62 @-------------------------------------------------------------------------------
  63 @ Check the .TEST1 section
  64 @-------------------------------------------------------------------------------
  65 @ CHECK:   Section {
  66 @ CHECK:     Index: 4
  67 @ CHECK-NEXT:     Name: .TEST1
  68 @ CHECK:     Type: SHT_PROGBITS (0x1)
  69 @-------------------------------------------------------------------------------
  70 @ The flags should contain SHF_GROUP.
  71 @-------------------------------------------------------------------------------
  72 @ CHECK:     Flags [ (0x206)
  73 @ CHECK:       SHF_ALLOC (0x2)
  74 @ CHECK:       SHF_EXECINSTR (0x4)
  75 @ CHECK:       SHF_GROUP (0x200)
  76 @ CHECK:     ]
  77 @ CHECK:   }
  78
  79
  80 @-------------------------------------------------------------------------------
  81 @ Check the .ARM.extab.TEST1 section
  82 @-------------------------------------------------------------------------------
  83 @ CHECK:   Section {
  84 @ CHECK:     Index: 5
  85 @ CHECK-NEXT:     Name: .ARM.extab.TEST1
  86 @ CHECK:     Type: SHT_PROGBITS (0x1)
  87 @-------------------------------------------------------------------------------
  88 @ The flags should contain SHF_GROUP.
  89 @-------------------------------------------------------------------------------
  90 @ CHECK:     Flags [ (0x202)
  91 @ CHECK:       SHF_ALLOC (0x2)
  92 @ CHECK:       SHF_GROUP (0x200)
  93 @ CHECK:     ]
  94 @ CHECK:   }
  95
  96 @ CHECK:   Section {
  97 @ CHECK:     Index: 6
  98 @ CHECK-NEXT:     Name: .rel.ARM.extab.TEST1
  99 @ CHECK: }
 100
 101 @-------------------------------------------------------------------------------
 102 @ Check the .ARM.exidx.TEST1 section
 103 @-------------------------------------------------------------------------------
 104 @ CHECK:   Section {
 105 @ CHECK:     Index: 7
 106 @ CHECK-NEXT:     Name: .ARM.exidx.TEST1
 107 @ CHECK:     Type: SHT_ARM_EXIDX (0x70000001)
 108 @-------------------------------------------------------------------------------
 109 @ The flags should contain SHF_GROUP.
 110 @-------------------------------------------------------------------------------
 111 @ CHECK:     Flags [ (0x282)
 112 @ CHECK:       SHF_ALLOC (0x2)
 113 @ CHECK:       SHF_GROUP (0x200)
 114 @ CHECK:       SHF_LINK_ORDER (0x80)
 115 @ CHECK:     ]
 116 @ CHECK:     Link: 4
 117 @ CHECK:   }
 118
 119
 120 @ CHECK:   Section {
 121 @ CHECK:     Index: 8
 122 @ CHECK-NEXT:     Name: .rel.ARM.exidx.TEST1
 123 @ CHECK: }
 124
 125 @ CHECK: ]
 126
 127 @-------------------------------------------------------------------------------
 128 @ Check symbol func1.  It should be weak binding, and belong to .TEST1 section.
 129 @-------------------------------------------------------------------------------
 130 @ CHECK: Symbols [
 131 @ CHECK:   Symbol {
 132 @ CHECK:     Name: func1
 133 @ CHECK:     Binding: Weak (0x2)
 134 @ CHECK:     Type: Function (0x2)
 135 @ CHECK:     Section: .TEST1
 136 @ CHECK:   }
 137 @ CHECK: ]