On platforms which load the kernel sans symbols directly from firmware
(possibly in e.g. S-Record format), call ddb_init() with empty arguments,
so that it will search any compiled in SYMTAB_SPACE. On all other platforms,
if __ELF__, also call ddb_init() with empty arguments until ELF bootloaders
which pass symbol information are ready.
- Set MARK_START to where we expect to be loading the kernel (0xf0100000).
- The ARM OpenFirmare bindings document describes how the client
program is loaded: OFW allocates and maps 6MB of memory at load-base
(0xf0000000), loads the client program, and then unmaps the memory from
the end of the client program to the end of the allocated region. Then
transfers control to the client program. We must emulate this behavior
to load the kernel: allocate 5MB at 0xf0100000 (where we expect to load
the kernel), load the kernel, then unmap the area after the kernel.
We can now load DHCP and load the kernel via NFS before getting the
dreaded Data Abort.
the etc Makefile override that by putting USETOOLS into $.MAKEOVERRIDES
This way the default for kernel compiles is still to use the installed
toolchain instead of depending on $TOOLDIR. $TOOLDIR can be used by
simply adding USETOOLS=yes to the command line as usual.
Adjust each ports template to set the default no setting and also pull in
bsd.own.mk if they weren't already to ensure they'll build correctly
with the new toolchain setup.
and RC7500 from the old arch/arm32 that is gonna be deleted in its whole
soon.
IMPORTANT for RC7500 ... this also removes all RC7500 support .... its a
big pitty but was virtually unsupported allready for a few years and noone
had one... if someone wants to make RC7500 or decendants support undo this
removal and start from here.
Make sure that each va_start has one and only one matching va_end,
especially in error cases.
If the va_list is used multiple times, do multiple va_starts/va_ends.
If a function gets va_list as argument, don't let it use va_end (since
it's the callers responsibility).
Improved by comments from enami and christos -- thanks!
Heimdal/krb4/KAME changes already fed back, rest to follow.
Inspired by, but not not based on, OpenBSD.
kernels as also ELF ones. Also cleaned up the code a bit and removed a
bunch of errors in the ELF loading code... no wonder it didn't work ! ... I
tried to squeeze about 8000 bytes in one 4096 byte page resulting in a
corrupted bss.
This will allow improvements to the pmaps so that they can more easily defer expensive operations, eg tlb/cache flush, til the last possible moment.
Currently this is a no-op on most platforms, so they should see no difference.
Reviewed by Jason.
Thorpe as an extension to the bus_space(9) API.
Only the mainbus has a working mmap... iomd, podulebus and isa dont have
one yet. Its trivial to add the iomd and isa's memory part but am a bit
hessistant to add it without knowing its implications by heart.
Podulebus might be implemented in 32 bits EASI but otherwise its not really
transparent since there is AFAIK no function to explicitly read one byte or
so .. or is this implemented in a higher level ?
ARM26 and arch/arm32/dnard (Shark) kernels compile and RiscPC and Shark
kernels are tested and function OK.
Implications of other ARM systems like hpcarm and ebarm are propably
minimal or solved trivially.
functional yet since the keyboard changes are not committed yet but it
should compile and work independently.
Initial support for mouse and screen takeovers / screen hardware scroll
reset is done.
Improved locking (not that we actually use it on a uniprocessor, but one day :)
Removed unneeded splvm's
tweaked pmap_clean_page code to only flush the cache if the page is mapped in the current pmap (based on diff from richard E)
Adopted pv entry allocation mechanism from i386.
Laid framework for returning ptp's when we've finished with them rather than holding onto them till the process exits.
ptp's are now allocated with a uvm object for the pmap, means that we can walk a list to free them off in pmap_release, until they get freed off by pmap_remove.
Also implemented a page zeroing function when the processor is idling. Note that hpcarm may wish to disable this.
I believe this code to be stable, if anyone has any problems please shout up.
thorpej