test/MC/ARM/eh-directive-cantunwind.s

   1 @ RUN: llvm-mc %s -triple=armv7-unknown-linux-gnueabi -filetype=obj -o - \
   2 @ RUN:   | llvm-readobj -s -sd -sr | FileCheck %s
   3
   4 @ Check the .cantunwind directive
   5
   6 @ When a function contains a .cantunwind directive, we should create an entry
   7 @ in corresponding .ARM.exidx, and its second word should be EXIDX_CANTUNWIND.
   8
   9         .syntax unified
  10
  11         .text
  12         .globl  func1
  13         .align  2
  14         .type   func1,%function
  15         .fnstart
  16 func1:
  17         bx      lr
  18         .cantunwind
  19         .fnend
  20
  21
  22
  23 @-------------------------------------------------------------------------------
  24 @ Check .text section
  25 @-------------------------------------------------------------------------------
  26 @ CHECK: Sections [
  27 @ CHECK:   Section {
  28 @ CHECK:     Name: .text
  29 @ CHECK:     SectionData (
  30 @ CHECK:       0000: 1EFF2FE1                             |../.|
  31 @ CHECK:     )
  32 @ CHECK:   }
  33
  34
  35 @-------------------------------------------------------------------------------
  36 @ Check .ARM.exidx section
  37 @-------------------------------------------------------------------------------
  38 @ CHECK:   Section {
  39 @ CHECK:     Name: .ARM.exidx
  40 @-------------------------------------------------------------------------------
  41 @ The first word should be the offset to .text.
  42 @ The second word should be EXIDX_CANTUNWIND (01000000).
  43 @-------------------------------------------------------------------------------
  44 @ CHECK:     SectionData (
  45 @ CHECK:       0000: 00000000 01000000                    |........|
  46 @ CHECK:     )
  47 @ CHECK:   }
  48 @ CHECK: ]
  49 @ CHECK:     Relocations [
  50 @ CHECK:       0x0 R_ARM_PREL31 .text 0x0
  51 @ CHECK:     ]