test/tools/llvm-dwarfdump/X86/verify_broken_exprloc.s

   1 # RUN: llvm-mc %s -filetype obj -triple i686-pc-linux -o %t
   2
   3 ## Check we don't crash when parsing invalid expression opcode.
   4 # RUN: llvm-dwarfdump %t | FileCheck %s
   5 # CHECK:      DW_TAG_GNU_call_site_parameter
   6 # CHECK-NEXT:  DW_AT_location  (<decoding error>)
   7
   8 ## Check verifier reports an error.
   9 # RUN: not llvm-dwarfdump -verify %t 2>&1 | FileCheck %s --check-prefix=VERIFY
  10 # VERIFY:      DIE contains invalid DWARF expression:
  11 # VERIFY:      DW_TAG_GNU_call_site_parameter
  12 # VERIFY-NEXT:   DW_AT_location    (<decoding error>)
  13
  14 .section  .debug_info,"",@progbits
  15   .long  0x12
  16   .value  0x4
  17   .long  0
  18   .byte  0x4
  19
  20   .uleb128 0x1 # DW_TAG_compile_unit [1]
  21   .long  0
  22   .byte  0x0
  23
  24   .uleb128 0x2  # DW_TAG_GNU_call_site_parameter [2]
  25   .uleb128 0x1  # Expression size.
  26   .byte  0xff   # Broken expression.
  27
  28   .byte  0      # End mark.
  29   .byte  0      # End mark.
  30
  31 .section .debug_abbrev,"",@progbits
  32   .uleb128 0x1    # ID [1]
  33   .uleb128 0x11   # DW_TAG_compile_unit, DW_CHILDREN_yes
  34   .byte  0x1
  35   .uleb128 0x25   # DW_AT_producer, DW_FORM_strp
  36   .uleb128 0xe
  37   .uleb128 0x13   # DW_AT_language, DW_FORM_data1
  38   .uleb128 0xb
  39   .byte  0
  40   .byte  0
  41
  42   .uleb128 0x2    # ID [2]
  43   .uleb128 0x410a # DW_TAG_GNU_call_site_parameter, DW_CHILDREN_no
  44   .byte  0
  45   .uleb128 0x2    # DW_AT_location, DW_FORM_exprloc
  46   .uleb128 0x18
  47   .byte  0
  48   .byte  0
  49   .byte  0
  50
  51 .section .debug_str,"MS",@progbits,1
  52 .string "test"