On Wed, May 26, 2010 at 03:23:02AM -0400, Mike Frysinger wrote: > On Wed, May 26, 2010 at 02:59, Geert Uytterhoeven wrote: > > From looking at <linux/flat.h>, it looks like the FLAT binary format > > doesn't contain any > > alignment information? So if I put __attribute__((aligned(4096))) in a > > file, there's still > > no guarantee it will actually be in memory at a 4Ki-aligned address? > > i believe that is correct. FLAT behavior today provides alignment of > either sizeof(unsigned long) or ARCH_SLAB_MINALIGN. > > i imagine something like this would work today because everyone > defines it to a constant: > -#ifdef ARCH_SLAB_MINALIGN > +#if defined(ARCH_SLAB_MINALIGN) && ARCH_SLAB_MINALIGN != 0 > but this would break if someone tried using gcc sizeof/alignof/etc...
alignof is used by SLUB/SLOB to set the ARCH_SLAB_MINALIGN value if the architecture hasn't already specified one, so that wouldn't work. _______________________________________________ uClinux-dev mailing list uClinux-dev@uclinux.org http://mailman.uclinux.org/mailman/listinfo/uclinux-dev This message was resent by uclinux-dev@uclinux.org To unsubscribe see: http://mailman.uclinux.org/mailman/options/uclinux-dev
