Andrew Boie 04caa679c9 userspace: allow thread IDs to be re-used ...

It's currently too easy to run out of thread IDs as they
are never re-used on thread exit.

Now the kernel maintains a bitfield of in-use thread IDs,
updated on thread creation and termination. When a thread
exits, the permission bitfield for all kernel objects is
updated to revoke access for that retired thread ID, so that
a new thread re-using that ID will not gain access to objects
that it should not have.

Because of these runtime updates, setting the permission
bitmap for an object to all ones for a "public" object doesn't
work properly any more; a flag is now set for this instead.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>

2017-10-16 16:16:28 -07:00

..

gen_offset.h

license: Replace Apache boilerplate with SPDX tag

2017-01-19 03:50:58 +00:00

kernel_offsets.h

syscalls: greatly simplify system call declaration

2017-09-29 13:02:20 -07:00

kernel_structs.h

userspace: allow thread IDs to be re-used

2017-10-16 16:16:28 -07:00

ksched.h

userspace: de-initialize aborted threads

2017-10-16 16:16:28 -07:00

nano_internal.h

kernel: add memory domain APIs

2017-09-29 16:48:53 -07:00

offsets_short.h

kernel/arch: streamline thread user options

2017-01-24 13:34:50 +00:00

syscall_handler.h

userspace: allow thread IDs to be re-used

2017-10-16 16:16:28 -07:00

timeout_q.h

timer: k_timer_start should accept 0 as duration parameter.

2017-09-06 10:18:39 -07:00

wait_q.h

Convert remaining code to using newly introduced integer sized types

2017-04-21 11:38:23 -05:00