On Mon, Oct 07, 2002 at 08:43:44PM +0200, Johannes Stezenbach wrote: > The question is how the glibc can detect if > a) the CPU does not have LL/SC > b) the kernel guarantees k1 != MAGIC > > I think the kernel should announce this explicitly. > In my patch from Sep 16 I used a sysctl, but that's > probably bad because glibc would rely on a real new > include/linux/sysctl.h. > > I need some advice on this (maybe add a line to /proc/cpuinfo, > or create a new /proc entry? or add a sysmips call to get > this info?). You should be using an "aux vector"; see how PowerPC provides current glibc with the size of a cache line. -- Daniel Jacobowitz MontaVista Software Debian GNU/Linux Developer
