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Reorganize the way machine architectures are handled. Consolidate the kernel configurations into a single generic directory. Move machine-specific Makefile's and loader scripts into the appropriate architecture directory. Kernel and module builds also generally add sys/arch to the include path so source files that include architecture-specific headers do not have to be adjusted. sys/<ARCH> -> sys/arch/<ARCH> sys/conf/*.<ARCH> -> sys/arch/<ARCH>/conf/*.<ARCH> sys/<ARCH>/conf/<KERNEL> -> sys/config/<KERNEL>
I'm growing tired of having to add #include lines for header files that the include file(s) I really want depend on. Go through nearly all major system include files and add appropriately #ifndef'd #include lines to include all dependant header files. Kernel source files now only need to #include the header files they directly depend on. So, for example, if I wanted to add a SYSCTL to a kernel source file, I would only have to #include <sys/sysctl.h> to bring in the support for it, rather then four or five header files in addition to <sys/sysctl.h>.
ICU/APIC cleanup part 2/many. Break the long chain of #include's based at exception.s.
ICU/APIC cleanup part 2/many. Break the long chain of #include's based at exception.s.
Another major mmx/xmm/FP commit. This is a combination of several patches but since the earlier patches didn't actually fix the crashing and corruption issues we were seeing everything has been rolled into one well tested commit. Make the FP more deterministic by requiring that npxthread and the FP state be properly synchronized, and that the FP be in a 'safe' state (meaning that mmx/xmm registers be useable) when npxthread is NULL. Allow the FP save area to be revectored. Kernel entities which use the FP unit, such as the bcopy code, must save the app state if it hasn't already been saved, then revector the save area. Note that combinations of operations must be protected by a critical section or interrupt disablement. Any clearing or setting npxthread combined with an fxsave/fnsave/frstor/fxrstor/fninit must be protected as an atomic entity. Since interrupts are threads and can preempt, such preemption will cause a thread switch to occur and thus cause npxthread and the FP state to be manipulated. The kernel can only depend on the FP state being stable for its use after it has revectored the FP save area. This commit fixes a number of issues, including potential filesystem corruption and kernel crashes.
General cleanups as part of the libcaps userland threading work.
Profiling cleanup 1/2: fix crashes (all registers need to be left intact from assembly), and fix a few syntax issues, etc. It isn't ticking away properly yet but at least it isn't crashing. Submitted-by: Kip Macy <kmacy@fsmware.com> Additional-work: dillon
Remove pre-ELF underscore prefix and asnames macro hacks.
thread stage 7: Implement basic LWKTs, use a straight round-robin model for the moment. Also continue consolidating the globaldata structure so both UP and SMP use it with more commonality. Temporarily match user processes up with scheduled LWKTs on a 1:1 basis. Eventually user processes will have LWKTs, but they will not all be scheduled 1:1 with the user process's runnability. With this commit work can potentially start to fan out, but I'm not ready to announce yet.
Add the DragonFly cvs id and perform general cleanups on cvs/rcs/sccs ids. Most ids have been removed from !lint sections and moved into comment sections.
import from FreeBSD RELENG_4 1.18