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

   1 @ RUN: llvm-mc %s -triple=armv7-unknown-linux-gnueabi -filetype=obj -o - \
   2 @ RUN:   | llvm-readobj -S --sd --sr -r --symbols | FileCheck %s
   3
   4 @ Check whether the section is switched back or not.
   5
   6 @ The assembler should emit the machine code of "func2" in .text section.
   7 @ It is incorrect if the machine code is emitted in .ARM.exidx or .ARM.extab.
   8 @ Besides, there should be two entries in .ARM.exidx section.
   9
  10         .syntax unified
  11
  12         .text
  13         .globl  func1
  14         .align  2
  15         .type   func1,%function
  16         .fnstart
  17 func1:
  18         bx      lr
  19         .fnend
  20
  21         .globl  func2
  22         .align  2
  23         .type   func2,%function
  24         .fnstart
  25 func2:
  26         bx      lr
  27         .fnend
  28
  29
  30 @-------------------------------------------------------------------------------
  31 @ Check the .text section.  There should be two "bx lr" instructions.
  32 @-------------------------------------------------------------------------------
  33 @ CHECK: Sections [
  34 @ CHECK:   Section {
  35 @ CHECK:     Name: .text
  36 @ CHECK:     SectionData (
  37 @ CHECK:       0000: 1EFF2FE1 1EFF2FE1                    |../.../.|
  38 @ CHECK:     )
  39 @ CHECK:   }
  40
  41
  42 @-------------------------------------------------------------------------------
  43 @ Check the .ARM.exidx section.
  44 @ There should be two entries (two words per entry.)
  45 @-------------------------------------------------------------------------------
  46 @ CHECK:   Section {
  47 @ CHECK:     Name: .ARM.exidx
  48 @ CHECK:     SectionData (
  49 @-------------------------------------------------------------------------------
  50 @ The first word should be the offset to .text.  The second word should be
  51 @ 0xB0B0B080, which means compact model 0 is used (0x80) and the rest of the
  52 @ word is filled with FINISH opcode (0xB0).
  53 @-------------------------------------------------------------------------------
  54 @ CHECK:       0000: 00000000 B0B0B080 04000000 B0B0B080 |................|
  55 @ CHECK:     )
  56 @ CHECK:   }
  57 @ CHECK: ]
  58
  59 @-------------------------------------------------------------------------------
  60 @ The first word of each entry should be relocated to .text section.
  61 @-------------------------------------------------------------------------------
  62 @ CHECK:     Relocations [
  63 @ CHECK:       0x0 R_ARM_PREL31 .text 0x0
  64 @ CHECK:       0x0 R_ARM_NONE __aeabi_unwind_cpp_pr0 0x0
  65 @ CHECK:       0x8 R_ARM_PREL31 .text 0x0
  66 @ CHECK:     ]
  67
  68
  69 @-------------------------------------------------------------------------------
  70 @ Check the symbols "func1" and "func2".  They should belong to .text section.
  71 @-------------------------------------------------------------------------------
  72 @ CHECK: Symbols [
  73 @ CHECK:   Symbol {
  74 @ CHECK:     Name: func1
  75 @ CHECK:     Section: .text
  76 @ CHECK:   }
  77 @ CHECK:   Symbol {
  78 @ CHECK:     Name: func2
  79 @ CHECK:     Section: .text
  80 @ CHECK:   }
  81 @ CHECK: ]