TODO

Here's what needs to be done to get the system comparable to a modern Unix system. If you tackle one of these problems, please contact us to let us know what you're working on. This will let us give you help as well as preventing us from duplicating effort. Stuff under longer-term goals is probably easier to get started with than the short-term stuff since it relies less on intimate knowledge of how the system works.

Short-term goals/bugs:

Crash recovery of local storage (XN and CFFS)
Clean up and document XN (maybe provide a mini ultra simple fs that uses XN)
Remove uses of CAP_ROOT and use the right capabilities in the right places
remove extra CFFS protection calls and use protected method interface
fix protection in XN
check with XN before inserting page into BC
remove XN registry entries when BC entries are flushed
notify XN when BC entries are reclaimed
allow page tables to be shared across fork
simple threads and maybe pthreads
get ld.so and friends working for real shared libraries
get rid of remaining shared data structures (mount, UDP socket info, fd's, tcb's, anything else???)
interface for registering functions to be run when a time-slice starts and ends
make sure clock is accurate and doesn't ever reverse
TCP sockets need to support inaddr for both bind and getsockname
fix strip or reason we can't boot xok made under xok (only xok.gdb)
make all ExOS code signal safe (most currently works ok, but TCP doesn't handle being interrupted with signals too well)
page revocation/paging
multi-thread NFS
solve the booting problem. Maybe use "grub" since it can handle booting *BSD kernels as well as linux
fragmentation support in dpf and removing hacked fragmentation support in nfs/udp
differentiate between filters that are "final" and ones that can be subsetted

Longer-term goals:

clean up and document internal interfaces
more drivers and/or a framework that lets us take Linux/*BSD/NT drivers "as is"
better binary format (punt a.out and move to ELF)
ptrace and native gdb support
X (clients and server)
more applications
upgrade to new dpf and vcode
protection to make sure apps don't monopolize disk or network bandwidth
figure out what we want to do with process scheduling
fast java VM