test/MC/ARM/eh-directive-section-multiple-func.s

   1 @ RUN: llvm-mc %s -triple=armv7-unknown-linux-gnueabi -filetype=obj -o - \
   2 @ RUN:   | llvm-readobj -S --sd --sr --symbols > %t
   3 @ RUN: FileCheck %s < %t
   4 @ RUN: FileCheck --check-prefix=RELOC %s < %t
   5
   6 @ Check whether the section is switched back properly.
   7
   8 @ The assembler should switch the section back to the corresponding section
   9 @ after it have emitted the exception handling indices and tables.  In this
  10 @ test case, we are checking whether the section is correct when .section
  11 @ directives is used.
  12
  13 @ In this example, func1 and func2 should be defined in .TEST1 section.
  14 @ It is incorrect if the func2 is in .text, .ARM.extab.TEST1, or
  15 @ .ARM.exidx.TEST1 sections.
  16
  17         .syntax unified
  18
  19         .section        .TEST1
  20
  21         .globl  func1
  22         .align  2
  23         .type   func1,%function
  24         .fnstart
  25 func1:
  26         bx      lr
  27         .personality    __gxx_personality_v0
  28         .handlerdata
  29         .fnend
  30
  31         .globl  func2
  32         .align  2
  33         .type   func2,%function
  34         .fnstart
  35 func2:
  36         bx      lr
  37         .personality    __gxx_personality_v0
  38         .handlerdata
  39         .fnend
  40
  41
  42 @-------------------------------------------------------------------------------
  43 @ Check the .text section.  This should be empty.
  44 @-------------------------------------------------------------------------------
  45 @ CHECK: Sections [
  46 @ CHECK:   Section {
  47 @ CHECK:     Name: .text
  48 @ CHECK:     SectionData (
  49 @ CHECK:     )
  50 @ CHECK:   }
  51
  52
  53 @-------------------------------------------------------------------------------
  54 @ Check the .TEST1 section.  There should be two "bx lr" instructions.
  55 @-------------------------------------------------------------------------------
  56 @ CHECK:   Section {
  57 @ CHECK:     Index: 3
  58 @ CHECK-NEXT:     Name: .TEST1
  59 @ CHECK:     SectionData (
  60 @ CHECK:       0000: 1EFF2FE1 1EFF2FE1                    |../.../.|
  61 @ CHECK:     )
  62 @ CHECK:   }
  63
  64
  65
  66 @-------------------------------------------------------------------------------
  67 @ Check the .ARM.extab.TEST1 section.
  68 @-------------------------------------------------------------------------------
  69 @ CHECK:   Section {
  70 @ CHECK:     Name: .ARM.extab.TEST1
  71 @ CHECK:     SectionData (
  72 @ CHECK:       0000: 00000000 B0B0B000 00000000 B0B0B000  |................|
  73 @ CHECK:     )
  74 @ CHECK:   }
  75
  76 @ RELOC:   Section {
  77 @ RELOC:     Name: .rel.ARM.extab.TEST1
  78 @ RELOC:     Relocations [
  79 @ RELOC:       0x0 R_ARM_PREL31 __gxx_personality_v0 0x0
  80 @ RELOC:       0x8 R_ARM_PREL31 __gxx_personality_v0 0x0
  81 @ RELOC:     ]
  82 @ RELOC:   }
  83
  84
  85 @-------------------------------------------------------------------------------
  86 @ Check the .ARM.exidx.TEST1 section.
  87 @-------------------------------------------------------------------------------
  88 @ CHECK:   Section {
  89 @ CHECK:     Name: .ARM.exidx.TEST1
  90 @ CHECK:     Link: 3
  91 @-------------------------------------------------------------------------------
  92 @ The first word should be the offset to .TEST1.
  93 @ The second word should be the offset to .ARM.extab.TEST1
  94 @-------------------------------------------------------------------------------
  95 @ CHECK:     SectionData (
  96 @ CHECK:       0000: 00000000 00000000 04000000 08000000  |................|
  97 @ CHECK:     )
  98 @ CHECK:   }
  99 @-------------------------------------------------------------------------------
 100 @ The first word of each entry should be relocated to .TEST1 section.
 101 @ The second word of each entry should be relocated to
 102 @ .ARM.extab.TESET1 section.
 103 @-------------------------------------------------------------------------------
 104
 105 @ RELOC:   Section {
 106 @ RELOC:     Name: .rel.ARM.exidx.TEST1
 107 @ RELOC:     Relocations [
 108 @ RELOC:       0x0 R_ARM_PREL31 .TEST1 0x0
 109 @ RELOC:       0x4 R_ARM_PREL31 .ARM.extab.TEST1 0x0
 110 @ RELOC:       0x8 R_ARM_PREL31 .TEST1 0x0
 111 @ RELOC:       0xC R_ARM_PREL31 .ARM.extab.TEST1 0x0
 112 @ RELOC:     ]
 113 @ RELOC:   }
 114
 115
 116 @-------------------------------------------------------------------------------
 117 @ Check the symbols "func1" and "func2".  They should belong to .TEST1 section.
 118 @-------------------------------------------------------------------------------
 119 @ CHECK: Symbols [
 120 @ CHECK:   Symbol {
 121 @ CHECK:     Name: func1
 122 @ CHECK:     Value: 0x0
 123 @ CHECK:     Size: 0
 124 @ CHECK:     Binding: Global (0x1)
 125 @ CHECK:     Type: Function (0x2)
 126 @ CHECK:     Other: 0
 127 @ CHECK:     Section: .TEST1
 128 @ CHECK:   }
 129 @ CHECK:   Symbol {
 130 @ CHECK:     Name: func2
 131 @ CHECK:     Value: 0x4
 132 @ CHECK:     Size: 0
 133 @ CHECK:     Binding: Global (0x1)
 134 @ CHECK:     Type: Function (0x2)
 135 @ CHECK:     Other: 0
 136 @ CHECK:     Section: .TEST1
 137 @ CHECK:   }
 138 @ CHECK: ]