lld/test/COFF/gfids-fallback.s

   1 # REQUIRES: x86
   2 # RUN: grep -B99999 [S]PLITMARKER %s | llvm-mc -triple x86_64-windows-msvc -filetype=obj -o %t1.obj
   3 # RUN: grep -A99999 [S]PLITMARKER %s | llvm-mc -triple x86_64-windows-msvc -filetype=obj -o %t2.obj
   4 # RUN: lld-link %t1.obj %t2.obj -guard:cf,nolongjmp -out:%t.exe -entry:main -opt:noref
   5 # RUN: llvm-readobj --file-headers --coff-load-config %t.exe | FileCheck %s
   6
   7 # CHECK: ImageBase: 0x140000000
   8 # CHECK: LoadConfig [
   9 # CHECK:   SEHandlerTable: 0x0
  10 # CHECK:   SEHandlerCount: 0
  11 # CHECK:   GuardCFCheckFunction: 0x0
  12 # CHECK:   GuardCFCheckDispatch: 0x0
  13 # CHECK:   GuardCFFunctionTable: 0x14000{{.*}}
  14 # CHECK:   GuardCFFunctionCount: 3
  15 # CHECK:   GuardFlags [ (0x500)
  16 # CHECK:     CF_FUNCTION_TABLE_PRESENT (0x400)
  17 # CHECK:     CF_INSTRUMENTED (0x100)
  18 # CHECK:   ]
  19 # CHECK:   GuardAddressTakenIatEntryTable: 0x0
  20 # CHECK:   GuardAddressTakenIatEntryCount: 0
  21 # CHECK:   GuardLongJumpTargetTable: 0x0
  22 # CHECK:   GuardLongJumpTargetCount: 0
  23 # CHECK: ]
  24 # CHECK:      GuardFidTable [
  25 # CHECK-NEXT:   0x14000{{.*}}
  26 # CHECK-NEXT:   0x14000{{.*}}
  27 # CHECK-NEXT:   0x14000{{.*}}
  28 # CHECK-NEXT: ]
  29
  30
  31 # Indicate that no gfids are present. All symbols used by relocations in this
  32 # file will be considered address-taken.
  33         .def     @feat.00; .scl    3; .type   0; .endef
  34         .globl  @feat.00
  35 @feat.00 = 0
  36
  37         .def     main; .scl    2; .type   32; .endef
  38         .section        .text,"xr",one_only,main
  39         .globl  main
  40 main:
  41         subq $8, %rsp
  42         leaq foo(%rip), %rdx
  43         callq bar
  44         movl $0, %eax
  45         addq $8, %rsp
  46         retq
  47
  48 # Should not appear in gfids table.
  49         .def     baz; .scl    2; .type   32; .endef
  50         .section        .text,"xr",one_only,baz
  51         .globl  baz
  52 baz:
  53         mov $1, %eax
  54         retq
  55
  56         .def     qux; .scl    2; .type   32; .endef
  57         .section        .text,"xr",one_only,qux
  58         .globl  qux
  59 qux:
  60         mov $2, %eax
  61         retq
  62
  63         .def     quxx; .scl    2; .type   32; .endef
  64         .section        .text,"xr",one_only,quxx
  65         .globl  quxx
  66 quxx:
  67         mov $3, %eax
  68         retq
  69
  70 # Load config.
  71         .section .rdata,"dr"
  72 .globl _load_config_used
  73 _load_config_used:
  74         .long 256
  75         .fill 124, 1, 0
  76         .quad __guard_fids_table
  77         .quad __guard_fids_count
  78         .long __guard_flags
  79         .fill 128, 1, 0
  80
  81 # SPLITMARKER
  82
  83 # Indicate that gfids are present. This file does not take any addresses.
  84         .def     @feat.00; .scl    3; .type   0; .endef
  85         .globl  @feat.00
  86 @feat.00 = 0x800
  87
  88         .def     foo; .scl    2; .type   32; .endef
  89         .section        .text,"xr",one_only,foo
  90         .global foo
  91 foo:
  92         movl $42, %eax
  93         retq
  94
  95         .def     bar; .scl    2; .type   32; .endef
  96         .section        .text,"xr",one_only,bar
  97         .global bar
  98 bar:
  99         movl $13, %eax
 100         retq