Hi Simon, On Oct 4, 2012 6:58 AM, "Simon Glass" <s...@chromium.org> wrote: > > Hi Graeme, > > On Wed, Oct 3, 2012 at 1:47 PM, Graeme Russ <graeme.r...@gmail.com> wrote: > > Hi Simon, > > > > On Oct 4, 2012 6:40 AM, "Simon Glass" <s...@chromium.org> wrote: > >> > >> Hi Tom, > >> > >> On Wed, Oct 3, 2012 at 1:04 PM, Tom Rini <tr...@ti.com> wrote: > >> > -----BEGIN PGP SIGNED MESSAGE----- > >> > Hash: SHA1 > >> > > >> > On 10/03/12 12:53, Simon Glass wrote: > >> > > >> >> On x86 machines gd is unfortunately a #define, so we should avoid > >> >> using gd for anything. This patch changes uses of gd to bgd so that > >> >> ext4fs can be used on x86. > >> >> > >> >> Signed-off-by: Simon Glass <s...@chromium.org> > >> > > >> > Is there any way to change x86 to not be using a #define for gd? > >> > >> I wasn't brave enough to look hard at that, although Graeme is on copy > >> and will know. It is actually using inline assembly to access this > >> special variable. > > > > Isn't 'gd' used by everyone (global data)? I fail to see how this ever > > worked. > > Well only x86 uses a #define for it, so other archs cause no problem. > It means that we can't use 'gd' as a symbol anywhere in U-Boot. I > suppose the only sensible use is a structure member, as here.
Ah, I see - and I don't see a quick and easy way out. Let me look a bit deeper... Regards, Graeme
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