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
98
|
# REQUIRES: x86
# RUN: llvm-mc -triple x86_64-windows-msvc %s -filetype=obj -o %t.obj
# RUN: lld-link %t.obj -guard:cf -guard:ehcont -out:%t.exe -entry:main
# 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: 1
# CHECK: GuardFlags [ (0x400500)
# CHECK: CF_FUNCTION_TABLE_PRESENT (0x400)
# CHECK: CF_INSTRUMENTED (0x100)
# CHECK: EH_CONTINUATION_TABLE_PRESENT (0x400000)
# CHECK: ]
# CHECK: GuardAddressTakenIatEntryTable: 0x0
# CHECK: GuardAddressTakenIatEntryCount: 0
# CHECK: GuardEHContinuationTable: 0x14000{{.*}}
# CHECK: GuardEHContinuationCount: 2
# CHECK: ]
# CHECK: GuardEHContTable [
# CHECK-NEXT: 0x14000{{.*}}
# CHECK-NEXT: 0x14000{{.*}}
# CHECK-NEXT: ]
# We need @feat.00 to have 0x4000 to indicate /guard:ehcont.
.def @feat.00;
.scl 3;
.type 0;
.endef
.globl @feat.00
@feat.00 = 0x4000
.def main; .scl 2; .type 32; .endef
.globl main # -- Begin function main
.p2align 4, 0x90
main:
.seh_proc main
.seh_handler __C_specific_handler, @unwind, @except
.seh_handlerdata
.long 2
.long (seh_begin)@IMGREL
.long (seh_end)@IMGREL
.long 1
.long (seh_except)@IMGREL
.long (seh2_begin)@IMGREL
.long (seh2_end)@IMGREL
.long 1
.long (seh2_except)@IMGREL
.text
seh_begin:
nop
int3
nop
seh_end:
nop
seh_except:
nop
seh2_begin:
nop
int3
nop
seh2_end:
nop
seh2_except:
nop
xor %eax, %eax
ret
.seh_endproc
__C_specific_handler:
ret
.section .gehcont$y,"dr"
.symidx seh_except
.symidx seh2_except
.section .rdata,"dr"
.globl _load_config_used
_load_config_used:
.long 312
.fill 124, 1, 0
.quad __guard_fids_table
.quad __guard_fids_count
.long __guard_flags
.fill 12, 1, 0
.quad __guard_iat_table
.quad __guard_iat_count
.quad __guard_longjmp_table
.quad __guard_longjmp_count
.fill 72, 1, 0
.quad __guard_eh_cont_table
.quad __guard_eh_cont_count
.fill 32, 1, 0
|
