some reason. Restore it to correct 16.
HTF did hpcsh work all this time with hd6446x_imask[_IPL_N] indexed
with IPLs 0..15 is a mistery... Discovered by accidentally triggering
hd64461 timer interrupt that is not enabled and should have been
masked.
_IPL_N used to be *also incorrect* 15 before Andy's change, which
makes one wonder if dumb luck is severly underappreciated.
There are still about 1600 left, but they have ',' or /* ... */
in the actual variable definitions - which my awk script doesn't handle.
There are also many that need () -> (void).
(The script does handle misordered arguments.)
which is now the "API" provided by the pmap module. pmap_kernel()
remains as the syntactic sugar.
Bonus cosmetics round: move all the pmap_t pointer typedefs into
uvm_pmap.h.
Thanks to Greg Oster for providing cpu muscle for doing test builds.
into modules. By and large this commit:
- shuffles header files and ifdefs
- splits code out where necessary to be modular
- adds module glue for each of the components
- adds/replaces hooks for things that can be installed at runtime
the active syscall description in struct lwp. To be used at some future
point to prevent unloading of modules that provide syscalls, while the
syscalls are in use.
returning from exception.
Makes single-stepping work on sh3 - without matching the address sh3
gets stuck at the instruction we are at, getting EXPEVT_BREAK before
executing the instruction.
registers in DDB. Names with initial "s" (for "saved") are somewhat
confusing to use. The fact that we use SPC/SSR registers to retrieve
values of PC/SR at the moment of trap is an immaterial implementation
detail.
As the size of mcontext is not changed, we avoid the hassle of
versioning all the calls that use it.
_REG_EXPEVT was never used by any code in the tree. Reporting EXPEVT
makes sense only for signals and in that case we pass it to userland
in ksi_trap already which is official MI way to get this (MD) information.
Old binaries running on new kernels will now have their GBR set from
new mcontext, but that's ok too, as GBR was not properly supported by
old kernels (not saved in trapframe), so old binaries couldn't have
possibly used it anyway.
While here, reorder switchframe so that we can shave off a few
instructions when restoring it (group stack registers at the end, make
sure that last and first registers are safe to load/store in delay
slots).
