CHAPTER 68. WINDOWS NT CHAPTER 68. WINDOWS NT
$unwind$main DD 020609H
DD 030023206H
DD imagerel __C_specific_handler
DD 01H
DD imagerel $LN9+8
DD imagerel $LN9+40
DD imagerel main$filt$0
DD imagerel $LN9+40
$unwind$main$filt$0 DD 020601H
DD 050023206H
xdata ENDS
_TEXT SEGMENT
main PROC
$LN9:
push rbx
sub rsp, 32
xor ebx, ebx
lea rcx, OFFSET FLAT:$SG86276 ; 'hello #1!'
call printf
mov DWORD PTR [rbx], 13
lea rcx, OFFSET FLAT:$SG86277 ; 'hello #2!'
call printf
jmp SHORT $LN8@main
$LN6@main:
lea rcx, OFFSET FLAT:$SG86279 ; 'access violation, can''t recover'
call printf
npad 1 ; align next label
$LN8@main:
xor eax, eax
add rsp, 32
pop rbx
ret 0
main ENDP
_TEXT ENDS
text$x SEGMENT
main$filt$0 PROC
push rbp
sub rsp, 32
mov rbp, rdx
$LN5@main$filt$:
mov rax, QWORD PTR [rcx]
xor ecx, ecx
cmp DWORD PTR [rax], -1073741819; c0000005H
sete cl
mov eax, ecx
$LN7@main$filt$:
add rsp, 32
pop rbp
ret 0
int 3
main$filt$0 ENDP
text$x ENDS
Listing 68.13: MSVC 2012$SG86277 DB 'in filter. code=0x%08X', 0aH, 00H
$SG86279 DB 'yes, that is our exception', 0aH, 00H
$SG86281 DB 'not our exception', 0aH, 00H
$SG86288 DB 'hello!', 0aH, 00H
$SG86290 DB '0x112233 raised. now let''s crash', 0aH, 00H
$SG86292 DB 'access violation, can''t recover', 0aH, 00H
$SG86294 DB 'user exception caught', 0aH, 00H
pdata SEGMENT
$pdata$filter_user_exceptions DD imagerel $LN6
DD imagerel $LN6+73
DD imagerel $unwind$filter_user_exceptions
$pdata$main DD imagerel $LN14