Re: [PATCH] Support %m in printf functions

[Mike Frysinger <vapier at gentoo dot org>]

On Tuesday 03 January 2012 11:32:02 Eric Blake wrote:
> On 01/03/2012 03:37 AM, Richard Earnshaw wrote:
> > On 01/01/12 17:59, Yaakov (Cygwin/X) wrote:
> >> This patch adds support for the "%m" conversion specifier in the printf
> >> and wprintf functions, a GNU extension:
> >> 
> >> http://www.kernel.org/doc/man-pages/online/pages/man3/printf.3.html
> >> 
> >> Patch and STC attached.
> > 
> > Printf is already very bloated.  On bare metal this adds yet more
> > overhead for something that's very unlikely to be used.
> > 
> > I think there should be a way of building printf with all GNU extensions
> > disabled.
> 
> I very much agree that this needs to be gated if we add it; I also think
> that none of the existing gates are appropriate (I see at least these
> existing gates _NO_POS_ARGS, _NO_LONGLONG, FLOATING_POINT, _NO_LONGDBL,
> _MB_CAPABLE and _WANT_IO_C99_FORMATS), se we'd need a new one, as well
> as the configure machinery to enable the gate.

+1 ... i've seen people do uClibc on bare-metal because newlib is too bloated 
for them
-mike

Attachment: signature.asc
Description: This is a digitally signed message part.