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Re: Patch to allow strlen expander to fail
- To: law at cygnus dot com
- Subject: Re: Patch to allow strlen expander to fail
- From: Horst von Brand <vonbrand at sleipnir dot valparaiso dot cl>
- Date: Mon, 06 Mar 2000 22:02:35 -0300
- cc: gcc at gcc dot gnu dot org
Jeffrey A Law <law@cygnus.com> said:
[...]
> > Is there some documentation about the functions gcc might generate calls
> > to?
> No, and any such documentation would have the caveat that the conditions
> under which GCC will use a libcall can change without warning or
> predictability.
That is OK with me.
> Any code which depends on gcc generating or not generating libcalls is
> broken.
That is exactly what I'm trying to say: If you want to use gcc as a
freestanding C implementation, you'll have to provide those "libc" functions
gcc might generate calls to. Advance notice of the possibility is in order
IMHO.
--
Horst von Brand vonbrand@sleipnir.valparaiso.cl
Casilla 9G, Viņa del Mar, Chile +56 32 672616