Re: [2.6 patch] kill IN_STRING_C

From: Ryan Cumming
Date: Mon Nov 08 2004 - 14:42:31 EST


On Monday 08 November 2004 10:22, linux-os wrote:
> Hmmm, how does it get the correct return-value and type?
Presumably it does it only for sprintf() calls where the return value is
ignored.

> I don't
> think that a compiler is allowed to change the function(s) called.
GCC is making the assumption that the functions it's replacing comply with the
C standard. I personally don't think that's too insane, especially since it
can be turned off (see below).

> If gcc is doing this now, there are many potential problems and
> it needs to be fixed. For instance, one can't qualify a
> 'C' runtime library and then have a compiler decide that it's
> not going to call the pre-qualified function.
-fno-builtin

-Ryan
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