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Re:Strange behaviour of gcc


Danny,

Man! I scanned through the GCC man page for anything that would control this action, and couldn't find anything. I don't see "-mno-stack-arg-probe" listed there at all, nor is any option that includes the word "probe."

Google ("GCC mno-stack-arg-probe" <http://www.google.com/search?hl=en&ie=UTF-8&oe=UTF-8&q=GCC+mno-stack-arg-probe&btnG=Google+Search>) turns up only three relevant hits (including one recent thread on the Cygwin mailing list: <http://www.cygwin.com/ml/cygwin/2002-06/msg00122.html> and <http://www.cygwin.com/ml/cygwin/2002-06/msg00123.html>).

Randall Schulz


At 12:28 2002-12-29, Danny Smith wrote:

> GCC's __builtin_alloca uses a helper function called _alloca to check
> the stack whenever allocating more that 4000  bytes in one go.
>
> Danny

To disable stack probing, add this switch  -mno-stack-arg-probe.

Danny

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