Re: gdb-7.4 bfin simulator fails to build on Fedora 17

[Mike Frysinger <vapier at gentoo dot org>]

On Tuesday 24 January 2012 12:56:15 Ralf Corsepius wrote:
> gdb-7.4's bfin simulator fails to build for bfin-rtems* targets on
> Fedora 17/RH rawhide:
> 
> ....
> In file included from /usr/include/linux/ethtool.h:17:0,
>                   from /usr/include/linux/mii.h:12,
>                   from ../../../gdb-7.4/sim/bfin/dv-eth_phy.c:31:
> /usr/include/linux/if_ether.h:130:2: error: unknown type name '__be16'
> In file included from /usr/include/linux/mii.h:12:0,
>                   from ../../../gdb-7.4/sim/bfin/dv-eth_phy.c:31:
> /usr/include/linux/ethtool.h:21:2: error: unknown type name '__u32'
> /usr/include/linux/ethtool.h:22:2: error: unknown type name '__u32'
> /usr/include/linux/ethtool.h:23:2: error: unknown type name '__u32'
> /usr/include/linux/ethtool.h:28:2: error: unknown type name '__u8'
> /usr/include/linux/ethtool.h:29:2: error: unknown type name '__u8'
> /usr/include/linux/ethtool.h:30:2: error: unknown type name '__u8'
> /usr/include/linux/ethtool.h:31:2: error: unknown type name '__u8'
> /usr/include/linux/ethtool.h:32:2: error: unknown type name '__u8'
> /usr/include/linux/ethtool.h:33:2: error: unknown type name '__u8'
> /usr/include/linux/ethtool.h:34:2: error: unknown type name '__u32'
> /usr/include/linux/ethtool.h:35:2: error: unknown type name '__u32'
> ...
> 
> The same configuration builds fine for Fedora 15/16 and openSUSE-11.4/12.1.
> 
>  From what I gather, the bfin simulator chokes upon kernel header
> incompatiblities.

hmm, in linux-3.2 (and older), linux/mii.h doesn't include anything else.  
seems linux-3.3-rc1 has started including linux/ethtool.h too.  however, that 
is unnecessary for userspace, so i'll probably send a patch to move the 
include to __KERNEL__.

dv-eth_phy.c has some hacks in it to make it build with even older kernel 
headers.  maybe i should have it just not build that driver on older systems 
rather than try to support it ...
-mike

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