lld/test/COFF/gfids-corrupt.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 -opt:noref -guard:cf,nolongjmp -out:%t.exe -entry:main 2>&1 | FileCheck %s --check-prefix=ERRS
   4 # RUN: llvm-readobj --file-headers --coff-load-config %t.exe | FileCheck %s
   5
   6 # ERRS: warning: ignoring .gfids$y symbol table index section in object {{.*}}gfids-corrupt{{.*}}
   7 # ERRS: warning: ignoring invalid symbol table index in section .gfids$y in object {{.*}}gfids-corrupt{{.*}}
   8
   9 # The table is arbitrary, really.
  10 # CHECK: ImageBase: 0x140000000
  11 # CHECK: LoadConfig [
  12 # CHECK:   SEHandlerTable: 0x0
  13 # CHECK:   SEHandlerCount: 0
  14 # CHECK:   GuardCFCheckFunction: 0x0
  15 # CHECK:   GuardCFCheckDispatch: 0x0
  16 # CHECK:   GuardCFFunctionTable: 0x14000{{.*}}
  17 # CHECK:   GuardCFFunctionCount: 2
  18 # CHECK:   GuardFlags [ (0x500)
  19 # CHECK:     CF_FUNCTION_TABLE_PRESENT (0x400)
  20 # CHECK:     CF_INSTRUMENTED (0x100)
  21 # CHECK:   ]
  22 # CHECK:   GuardAddressTakenIatEntryTable: 0x0
  23 # CHECK:   GuardAddressTakenIatEntryCount: 0
  24 # CHECK:   GuardLongJumpTargetTable: 0x0
  25 # CHECK:   GuardLongJumpTargetCount: 0
  26 # CHECK: ]
  27 # CHECK:      GuardFidTable [
  28 # CHECK-NEXT:   0x14000{{.*}}
  29 # CHECK-NEXT:   0x14000{{.*}}
  30 # CHECK-NEXT: ]
  31
  32
  33 # Indicate that gfids are present.
  34         .def     @feat.00; .scl    3; .type   0; .endef
  35         .globl  @feat.00
  36 @feat.00 = 0x800
  37
  38         .def     f1; .scl    2; .type   32; .endef
  39         .section        .text,"xr",one_only,f1
  40         .global f1
  41 f1:
  42         movl $42, %eax
  43         retq
  44
  45         .def     f2; .scl    2; .type   32; .endef
  46         .section        .text,"xr",one_only,f2
  47         .global f2
  48 f2:
  49         movl $13, %eax
  50         retq
  51
  52         .section        .data,"dw",one_only,fp1
  53         .globl  fp1
  54 fp1:
  55         .quad   f1
  56
  57         .section        .data,"dw",one_only,fp2
  58         .globl  fp2
  59 fp2:
  60         .quad   f2
  61
  62         .section        .gfids$y,"dr",associative,fp1
  63         .symidx f1
  64         .byte 0
  65
  66         .section        .gfids$y,"dr",associative,fp2
  67         .symidx f2
  68         .long 0x400
  69
  70         .def     main; .scl    2; .type   32; .endef
  71         .section        .text,"xr",one_only,main
  72         .globl  main
  73 main:
  74         callq      *fp1(%rip)
  75         callq      *fp2(%rip)
  76         xor %eax, %eax
  77         retq
  78
  79         .section .rdata,"dr"
  80 .globl _load_config_used
  81 _load_config_used:
  82         .long 256
  83         .fill 124, 1, 0
  84         .quad __guard_fids_table
  85         .quad __guard_fids_count
  86         .long __guard_flags
  87         .fill 128, 1, 0