How to disable buffer security (/GS) for a particular function?

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John - 27 Jun 2005 20:06 GMT

Hi,
I know, this question was posted a year ago (link below).
I wonder whether Microsoft changed it's mind and
fixed check_stack pragma to disable buffer security
for a single function.

I would hate to disable the security for the whole project
(or module) because of a single function.

Thank you
John

http://groups-beta.google.com/group/microsoft.public.dotnet.languages.vc/browse_
thread/thread/167bb3a3258177f6/f711f1925b8fa42a?q=check_stack+%2Fgs&rnum=6#f711f
1925b8fa42a

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Ronald Laeremans [MSFT] - 27 Jun 2005 21:25 GMT

> Hi,
> I know, this question was posted a year ago (link below).
[quoted text clipped - 9 lines]
>
> http://groups-beta.google.com/group/microsoft.public.dotnet.languages.vc/browse_
thread/thread/167bb3a3258177f6/f711f1925b8fa42a?q=check_stack+%2Fgs&rnum=6#f711f
1925b8fa42a

Hi John,

No, the plan has not changed.

Note that you were hitting ab bug that since should be fixed. Can you
provide a new repro where your code is broken by /GS? Just send it to me
directly: ronaldl at microsoft dot com

Thanks.

Ronald

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John - 27 Jun 2005 23:09 GMT

I guess you mistook me for the original poster.

No, I am not hitting any bug -
I am just using a small function as prototype
for stub generation and was very surprised that
the system crashed when I allocated a local array using
_alloca. Since there is no debugger available,
it took me a long time testing and disassembly reading
until I found this pesky call to __security_check_cookie.

John

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John - 27 Jun 2005 23:12 GMT

Thank you for the reply.

I guess you mistook me for the original poster
(I am not).

No, I am not hitting any bug -
I am just using a small function as prototype
for stub generation and was very surprised that
the system crashed when I allocated a local array using
_alloca. Since there is no debugger available,
it took me a long time testing and disassembly reading
until I found this pesky call to __security_check_cookie.

John

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How to disable buffer security (/GS) for a particular function?

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