On Fri, Sep 11, 2015 at 01:39:29PM +0200, Patrik Jakobsson wrote:
> On Wed, Sep 09, 2015 at 01:50:40AM +0300, Dmitry V. Levin wrote:
> > On Mon, Aug 24, 2015 at 02:42:50PM +0200, Patrik Jakobsson wrote:
> > > +static int drm_mode_create_dumb(struct tcb *tcp, const unsigned int
> > > code, long arg)
> > > +{
> > > + struct drm_mode_create_dumb dumb;
> > > +
> > > + if (umove(tcp, arg, &dumb))
> > > + return RVAL_DECODED;
> > > +
> > > + if (entering(tcp)) {
> > > + tprintf(", {width=%u, height=%u, bpp=%u, flags=0x%x",
> > > + dumb.width, dumb.height, dumb.bpp, dumb.flags);
> > > + } else if (exiting(tcp)) {
> > > + tprintf(", handle=%u, pitch=%u, size=%Lu}", dumb.handle,
> > > + dumb.pitch, dumb.size);
> > > + }
> > > +
> > > + return RVAL_DECODED | 1;
> > > +}
> >
> > This generates a warning (which turns into an error with
> > --enable-gcc-Werror) on x86_64 when using kernel drm headers:
> >
> > drm.c: In function 'drm_mode_create_dumb':
> > drm.c:521:11: error: format '%Lu' expects argument of type 'long long
> > unsigned int', but argument 4 has type 'uint64_t {aka long unsigned int}'
> > [-Werror=format=]
>
> So this brings us back to whether to include drm kernel headers or not. If
> -Werror is a requirement (which is already broken last time I checked) thereIs it? Could you cite the error, please? > will need to be #ifdefs at various places in drm decoding. What would you > prefer. Both options are fine by me. This is the only place where definitions differ to the extent that it's visible. I'd rather cast the argument to unsigned long long. -- ldv
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