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 -t | FileCheck %s
   3
   4 @ Check the combination of .section, .fnstart, and .fnend directives.
   5
   6 @ For the functions in .text section, the exception handling index (EXIDX)
   7 @ should be generated in .ARM.exidx, and the exception handling table (EXTAB)
   8 @ should be generated in .ARM.extab.
   9
  10 @ For the functions in custom section specified by .section directives,
  11 @ the EXIDX should be generated in ".ARM.exidx[[SECTION_NAME]]", and the EXTAB
  12 @ should be generated in ".ARM.extab[[SECTION_NAME]]".
  13
  14         .syntax unified
  15
  16 @-------------------------------------------------------------------------------
  17 @ .TEST1 section
  18 @-------------------------------------------------------------------------------
  19         .section        .TEST1
  20         .globl  func1
  21         .align  2
  22         .type   func1,%function
  23         .fnstart
  24 func1:
  25         bx      lr
  26         .personality    __gxx_personality_v0
  27         .handlerdata
  28         .fnend
  29
  30
  31 @-------------------------------------------------------------------------------
  32 @ TEST2 section (without the dot in the beginning)
  33 @-------------------------------------------------------------------------------
  34         .section        TEST2
  35         .globl  func2
  36         .align  2
  37         .type   func2,%function
  38         .fnstart
  39 func2:
  40         bx      lr
  41         .personality    __gxx_personality_v0
  42         .handlerdata
  43         .fnend
  44
  45
  46 @-------------------------------------------------------------------------------
  47 @ Check the .TEST1 section.
  48 @-------------------------------------------------------------------------------
  49 @ CHECK: Sections [
  50 @ CHECK:   Section {
  51 @ CHECK:     Index: 4
  52 @ CHECK:     Name: .TEST1
  53 @ CHECK:     SectionData (
  54 @ CHECK:       0000: 1EFF2FE1                             |../.|
  55 @ CHECK:     )
  56 @ CHECK:   }
  57
  58 @-------------------------------------------------------------------------------
  59 @ Check the .ARM.extab.TEST1 section, the EXTAB of .TEST1 section.
  60 @-------------------------------------------------------------------------------
  61 @ CHECK:   Section {
  62 @ CHECK:     Name: .ARM.extab.TEST1
  63 @ CHECK:     SectionData (
  64 @ CHECK:       0000: 00000000 B0B0B000                    |........|
  65 @ CHECK:     )
  66 @ CHECK:   }
  67 @ CHECK:     Relocations [
  68 @ CHECK:       0x0 R_ARM_PREL31 __gxx_personality_v0 0x0
  69 @ CHECK:     ]
  70
  71
  72 @-------------------------------------------------------------------------------
  73 @ Check the.ARM.exidx.TEST1 section, the EXIDX of .TEST1 section.
  74 @-------------------------------------------------------------------------------
  75 @ CHECK:   Section {
  76 @ CHECK:     Name: .ARM.exidx.TEST1
  77
  78 @-------------------------------------------------------------------------------
  79 @ This section should linked with .TEST1 section.
  80 @-------------------------------------------------------------------------------
  81 @ CHECK:     Link: 4
  82
  83 @-------------------------------------------------------------------------------
  84 @ The first word should be relocated to the code address in .TEST1 section.
  85 @ The second word should be relocated to the EHTAB entry in .ARM.extab.TEST1
  86 @ section.
  87 @-------------------------------------------------------------------------------
  88 @ CHECK:     SectionData (
  89 @ CHECK:       0000: 00000000 00000000                    |........|
  90 @ CHECK:     )
  91 @ CHECK:   }
  92 @ CHECK:     Relocations [
  93 @ CHECK:       0x0 R_ARM_PREL31 .TEST1 0x0
  94 @ CHECK:       0x4 R_ARM_PREL31 .ARM.extab.TEST1 0x0
  95 @ CHECK:     ]
  96
  97
  98 @-------------------------------------------------------------------------------
  99 @ Check the TEST2 section (without the dot in the beginning)
 100 @-------------------------------------------------------------------------------
 101 @ CHECK:   Section {
 102 @ CHECK:     Index: 9
 103 @ CHECK:     Name: TEST2
 104 @ CHECK:     SectionData (
 105 @ CHECK:       0000: 1EFF2FE1                             |../.|
 106 @ CHECK:     )
 107 @ CHECK:   }
 108
 109 @-------------------------------------------------------------------------------
 110 @ Check the .ARM.extabTEST2 section, the EXTAB of TEST2 section.
 111 @-------------------------------------------------------------------------------
 112 @ CHECK:   Section {
 113 @ CHECK:     Name: .ARM.extabTEST2
 114 @ CHECK:     SectionData (
 115 @ CHECK:       0000: 00000000 B0B0B000                    |........|
 116 @ CHECK:     )
 117 @ CHECK:   }
 118 @ CHECK:     Relocations [
 119 @ CHECK:       0x0 R_ARM_PREL31 __gxx_personality_v0 0x0
 120 @ CHECK:     ]
 121
 122
 123 @-------------------------------------------------------------------------------
 124 @ Check the .ARM.exidxTEST2 section, the EXIDX of TEST2 section.
 125 @-------------------------------------------------------------------------------
 126 @ CHECK:   Section {
 127 @ CHECK:     Name: .ARM.exidxTEST2
 128
 129 @-------------------------------------------------------------------------------
 130 @ This section should linked with TEST2 section.
 131 @-------------------------------------------------------------------------------
 132 @ CHECK:     Link: 9
 133
 134 @-------------------------------------------------------------------------------
 135 @ The first word should be relocated to the code address in TEST2 section.
 136 @ The second word should be relocated to the EHTAB entry in .ARM.extabTEST2
 137 @ section.
 138 @-------------------------------------------------------------------------------
 139 @ CHECK:     SectionData (
 140 @ CHECK:       0000: 00000000 00000000                    |........|
 141 @ CHECK:     )
 142 @ CHECK:   }
 143 @ CHECK: ]
 144 @ CHECK:     Relocations [
 145 @ CHECK:       0x0 R_ARM_PREL31 TEST2 0x0
 146 @ CHECK:       0x4 R_ARM_PREL31 .ARM.extabTEST2 0x0
 147 @ CHECK:     ]
 148
 149
 150
 151 @-------------------------------------------------------------------------------
 152 @ Check the symbols and the sections they belong to
 153 @-------------------------------------------------------------------------------
 154 @ CHECK: Symbols [
 155 @ CHECK:   Symbol {
 156 @ CHECK:     Name: func1
 157 @ CHECK:     Section: .TEST1 (0x4)
 158 @ CHECK:   }
 159 @ CHECK:   Symbol {
 160 @ CHECK:     Name: func2
 161 @ CHECK:     Section: TEST2 (0x9)
 162 @ CHECK:   }
 163 @ CHECK: ]