can/should we use gcc 3.1 to compile kernels
trini at kernel.crashing.org
Sat Jun 8 06:45:35 EST 2002
On Fri, Jun 07, 2002 at 10:36:46PM +0200, Franz Sirl wrote:
> At 22:19 07.06.2002, Tom Rini wrote:
> >On Fri, Jun 07, 2002 at 03:44:56PM -0400, Kevin B. Hendricks wrote:
> >> Not too bad warnings-wize excpet for the controlfb.c where it constanly
> >> gave a funny warning about "pasting ->".
> >Sounds right. I think there was a few other things too..
> The warning is correct, pasting "token1" (CNTRL_REG) with "token2" (->)
> makes no sense, usually it's just a ## to much somewhere.
> >> It did this for every occurence of the macro CNTRL_REG which I must admit
> >> has two ## which I think gcc was misinterpreting somehow.
> >Well, isn't:
> >#define x(foo) a_## foo ##_b
> >A semi-common thing, like we do in indirect_pci.c ? Or was it something
> Think about preprocessing tokens! If foo is "->" the ## make no sense at
> all, cause "a_", "->" and "_b" are 3 separate preprocessing tokens, no need
> to paste them together.
Ah. Got a patch? :)
> >> Other than that just the occaissioanal wanring about unused variables and
> >> things like that.
> >Lots of the USB stuff uses __FUNCTION__ which gcc-3.1 isn't happy
> It's not __FUNCTION__ per se that gcc is unhappy about, but string
> concatenation with it. So instead of printk ( __FUNCTION__ "text %d",
> value) use printk (" %s, text %d", __FUNCTION__, value). No big deal.
> I think current 3.2 already refuses to compile that.
I thought it was 3.1 that gave a big warning about __FUNCTION__ being
depreciated entirely and 3.2 which just removed __FUNCTION__ at all. Or
have things been changed abit?
Tom Rini (TR1265)
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