On Mon, Apr 15, 2013 at 9:58 AM, Ley Foon Tan <[email protected]> wrote: > > > Change KBUILD_CFLAGS to -O0 in Makefile and got the compilation error as > below. > Is the Linux kernel support -O0 optimization flag?
No. If I'm not mistaken we need this to make sure that the compiler inlines some functions. In your case the compiler failed to compute the BUILD_BUG() macro correctly. It depends also on optimization. -- Thanks, //richard -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
