test/MC/ARM/eh-directive-section.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 the combination of .section, .fnstart, and .fnend directives.
   7
   8 @ For the functions in .text section, the exception handling index (EXIDX)
   9 @ should be generated in .ARM.exidx, and the exception handling table (EXTAB)
  10 @ should be generated in .ARM.extab.
  11
  12 @ For the functions in custom section specified by .section directives,
  13 @ the EXIDX should be generated in ".ARM.exidx[[SECTION_NAME]]", and the EXTAB
  14 @ should be generated in ".ARM.extab[[SECTION_NAME]]".
  15
  16         .syntax unified
  17
  18 @-------------------------------------------------------------------------------
  19 @ .TEST1 section
  20 @-------------------------------------------------------------------------------
  21         .section        .TEST1
  22         .globl  func1
  23         .align  2
  24         .type   func1,%function
  25         .fnstart
  26 func1:
  27         bx      lr
  28         .personality    __gxx_personality_v0
  29         .handlerdata
  30         .fnend
  31
  32
  33 @-------------------------------------------------------------------------------
  34 @ TEST2 section (without the dot in the beginning)
  35 @-------------------------------------------------------------------------------
  36         .section        TEST2
  37         .globl  func2
  38         .align  2
  39         .type   func2,%function
  40         .fnstart
  41 func2:
  42         bx      lr
  43         .personality    __gxx_personality_v0
  44         .handlerdata
  45         .fnend
  46
  47
  48 @-------------------------------------------------------------------------------
  49 @ Check the .TEST1 section.
  50 @-------------------------------------------------------------------------------
  51 @ CHECK: Sections [
  52 @ CHECK:   Section {
  53 @ CHECK:     Index: 3
  54 @ CHECK-NEXT:     Name: .TEST1
  55 @ CHECK:     SectionData (
  56 @ CHECK:       0000: 1EFF2FE1                             |../.|
  57 @ CHECK:     )
  58 @ CHECK:   }
  59
  60 @-------------------------------------------------------------------------------
  61 @ Check the .ARM.extab.TEST1 section, the EXTAB of .TEST1 section.
  62 @-------------------------------------------------------------------------------
  63 @ CHECK:   Section {
  64 @ CHECK:     Name: .ARM.extab.TEST1
  65 @ CHECK:     SectionData (
  66 @ CHECK:       0000: 00000000 B0B0B000                    |........|
  67 @ CHECK:     )
  68 @ CHECK:   }
  69
  70 @ RELOC:   Section {
  71 @ RELOC:     Name: .rel.ARM.extab.TEST1
  72 @ RELOC:     Relocations [
  73 @ RELOC:       0x0 R_ARM_PREL31 __gxx_personality_v0 0x0
  74 @ RELOC:     ]
  75 @ RELOC:   }
  76
  77
  78 @-------------------------------------------------------------------------------
  79 @ Check the.ARM.exidx.TEST1 section, the EXIDX of .TEST1 section.
  80 @-------------------------------------------------------------------------------
  81 @ CHECK:   Section {
  82 @ CHECK:     Name: .ARM.exidx.TEST1
  83
  84 @-------------------------------------------------------------------------------
  85 @ This section should linked with .TEST1 section.
  86 @-------------------------------------------------------------------------------
  87 @ CHECK:     Link: 3
  88
  89 @-------------------------------------------------------------------------------
  90 @ The first word should be relocated to the code address in .TEST1 section.
  91 @ The second word should be relocated to the EHTAB entry in .ARM.extab.TEST1
  92 @ section.
  93 @-------------------------------------------------------------------------------
  94 @ CHECK:     SectionData (
  95 @ CHECK:       0000: 00000000 00000000                    |........|
  96 @ CHECK:     )
  97 @ CHECK:   }
  98
  99 @ RELOC:   Section {
 100 @ RELOC:     Name: .rel.ARM.exidx.TEST1
 101 @ RELOC:     Relocations [
 102 @ RELOC:       0x0 R_ARM_PREL31 .TEST1 0x0
 103 @ RELOC:       0x4 R_ARM_PREL31 .ARM.extab.TEST1 0x0
 104 @ RELOC:     ]
 105 @ RELOC:   }
 106
 107
 108 @-------------------------------------------------------------------------------
 109 @ Check the TEST2 section (without the dot in the beginning)
 110 @-------------------------------------------------------------------------------
 111 @ CHECK:   Section {
 112 @ CHECK:     Index: 8
 113 @ CHECK-NEXT:     Name: TEST2
 114 @ CHECK:     SectionData (
 115 @ CHECK:       0000: 1EFF2FE1                             |../.|
 116 @ CHECK:     )
 117 @ CHECK:   }
 118
 119 @-------------------------------------------------------------------------------
 120 @ Check the .ARM.extabTEST2 section, the EXTAB of TEST2 section.
 121 @-------------------------------------------------------------------------------
 122 @ CHECK:   Section {
 123 @ CHECK:     Name: .ARM.extabTEST2
 124 @ CHECK:     SectionData (
 125 @ CHECK:       0000: 00000000 B0B0B000                    |........|
 126 @ CHECK:     )
 127 @ CHECK:   }
 128
 129 @ RELOC:   Section {
 130 @ RELOC:     Name: .rel.ARM.extabTEST2
 131 @ RELOC:     Relocations [
 132 @ RELOC:       0x0 R_ARM_PREL31 __gxx_personality_v0 0x0
 133 @ RELOC:     ]
 134 @ RELOC:   }
 135
 136
 137 @-------------------------------------------------------------------------------
 138 @ Check the .ARM.exidxTEST2 section, the EXIDX of TEST2 section.
 139 @-------------------------------------------------------------------------------
 140 @ CHECK:   Section {
 141 @ CHECK:     Name: .ARM.exidxTEST2
 142
 143 @-------------------------------------------------------------------------------
 144 @ This section should linked with TEST2 section.
 145 @-------------------------------------------------------------------------------
 146 @ CHECK:     Link: 8
 147
 148 @-------------------------------------------------------------------------------
 149 @ The first word should be relocated to the code address in TEST2 section.
 150 @ The second word should be relocated to the EHTAB entry in .ARM.extabTEST2
 151 @ section.
 152 @-------------------------------------------------------------------------------
 153 @ CHECK:     SectionData (
 154 @ CHECK:       0000: 00000000 00000000                    |........|
 155 @ CHECK:     )
 156 @ CHECK:   }
 157
 158 @ RELOC:   Section {
 159 @ RELOC:     Name: .rel.ARM.exidxTEST2
 160 @ RELOC:     Relocations [
 161 @ RELOC:       0x0 R_ARM_PREL31 TEST2 0x0
 162 @ RELOC:       0x4 R_ARM_PREL31 .ARM.extabTEST2 0x0
 163 @ RELOC:     ]
 164 @ RELOC:   }
 165
 166
 167
 168 @-------------------------------------------------------------------------------
 169 @ Check the symbols and the sections they belong to
 170 @-------------------------------------------------------------------------------
 171 @ CHECK: Symbols [
 172 @ CHECK:   Symbol {
 173 @ CHECK:     Name: func1
 174 @ CHECK:     Section: .TEST1
 175 @ CHECK:   }
 176 @ CHECK:   Symbol {
 177 @ CHECK:     Name: func2
 178 @ CHECK:     Section: TEST2
 179 @ CHECK:   }
 180 @ CHECK: ]