On Wed, 12 May 1999, Mike Smith wrote: > > This option should automatically select the appropriate sources > > which is compiled into kernel, according to the source is needed > > only in UP case, or only in SMP case, or both. This is what > > oldconfig and newconfig does. > > This is, again, defective reasoning. > > For a usable dynamic architecture, loadable modules need to be compiled > to support both UP and SMP architectures simultaneously. Thus the > locking primitives need to be conditionalised at _runtime_.
Or, alternately, at load time by choosing the appropriate subsystem to match the hardware. It is clearly possible to arrange that lowest-common-denominator code is initially loaded and then replaced with a configuration optimized version. The "configuration" at compile time is in the Makefile to cause, when appropriate, the various versions to be compiled from common code. To Unsubscribe: send mail to majord...@freebsd.org with "unsubscribe freebsd-current" in the body of the message
