lld/test/COFF/guard-ehcont.s

   1 # REQUIRES: x86
   2 # RUN: llvm-mc -triple x86_64-windows-msvc %s -filetype=obj -o %t.obj
   3 # RUN: lld-link %t.obj -guard:cf -guard:ehcont -out:%t.exe -entry:main
   4 # RUN: llvm-readobj --file-headers --coff-load-config %t.exe | FileCheck %s
   5
   6 # CHECK: ImageBase: 0x140000000
   7 # CHECK: LoadConfig [
   8 # CHECK:   SEHandlerTable: 0x0
   9 # CHECK:   SEHandlerCount: 0
  10 # CHECK:   GuardCFCheckFunction: 0x0
  11 # CHECK:   GuardCFCheckDispatch: 0x0
  12 # CHECK:   GuardCFFunctionTable: 0x14000{{.*}}
  13 # CHECK:   GuardCFFunctionCount: 1
  14 # CHECK:   GuardFlags [ (0x400500)
  15 # CHECK:     CF_FUNCTION_TABLE_PRESENT (0x400)
  16 # CHECK:     CF_INSTRUMENTED (0x100)
  17 # CHECK:     EH_CONTINUATION_TABLE_PRESENT (0x400000)
  18 # CHECK:   ]
  19 # CHECK:   GuardAddressTakenIatEntryTable: 0x0
  20 # CHECK:   GuardAddressTakenIatEntryCount: 0
  21 # CHECK:   GuardEHContinuationTable: 0x14000{{.*}}
  22 # CHECK:   GuardEHContinuationCount: 2
  23 # CHECK: ]
  24 # CHECK:      GuardEHContTable [
  25 # CHECK-NEXT:   0x14000{{.*}}
  26 # CHECK-NEXT:   0x14000{{.*}}
  27 # CHECK-NEXT: ]
  28
  29 # We need @feat.00 to have 0x4000 to indicate /guard:ehcont.
  30         .def     @feat.00;
  31         .scl    3;
  32         .type   0;
  33         .endef
  34         .globl  @feat.00
  35 @feat.00 = 0x4000
  36         .def     main; .scl    2; .type   32; .endef
  37         .globl  main                            # -- Begin function main
  38         .p2align        4, 0x90
  39 main:
  40 .seh_proc main
  41         .seh_handler __C_specific_handler, @unwind, @except
  42         .seh_handlerdata
  43         .long 2
  44         .long (seh_begin)@IMGREL
  45         .long (seh_end)@IMGREL
  46         .long 1
  47         .long (seh_except)@IMGREL
  48         .long (seh2_begin)@IMGREL
  49         .long (seh2_end)@IMGREL
  50         .long 1
  51         .long (seh2_except)@IMGREL
  52         .text
  53     seh_begin:
  54         nop
  55         int3
  56         nop
  57     seh_end:
  58         nop
  59     seh_except:
  60         nop
  61
  62     seh2_begin:
  63         nop
  64         int3
  65         nop
  66     seh2_end:
  67         nop
  68     seh2_except:
  69         nop
  70
  71         xor %eax, %eax
  72         ret
  73 .seh_endproc
  74
  75 __C_specific_handler:
  76         ret
  77
  78 .section        .gehcont$y,"dr"
  79 .symidx seh_except
  80 .symidx seh2_except
  81
  82 .section  .rdata,"dr"
  83 .globl _load_config_used
  84 _load_config_used:
  85         .long 312
  86         .fill 124, 1, 0
  87         .quad __guard_fids_table
  88         .quad __guard_fids_count
  89         .long __guard_flags
  90         .fill 12, 1, 0
  91         .quad __guard_iat_table
  92         .quad __guard_iat_count
  93         .quad __guard_longjmp_table
  94         .quad __guard_longjmp_count
  95         .fill 72, 1, 0
  96         .quad __guard_eh_cont_table
  97         .quad __guard_eh_cont_count
  98         .fill 32, 1, 0