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