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Rev Age Author Path Log message Diff
2472 6129 d 19 h jermar /trunk/kernel/generic/src/ipc/ Some left-over stuff from the last commit (IPC cleanup and improved
comments.)
 
2471 6129 d 20 h jermar /trunk/ Greatly improve comments in the IPC layer.
Now I think I finally start to understand our IPC internals :-)
 
2470 6133 d 18 h jermar /trunk/ Fix a double-free recently introduced in revision r2436.
Add a comment clarifying the life-cycle of the kernel_uarg structure.

Comment out the freeing of userspace thread stack while still running on it.
This should be fixed by implementing userspace version of thread_join().
 
2467 6133 d 21 h jermar /trunk/ Improve comments for arch-specific implementations of hierarchical
4-level page tables. Improve formatting.
 
2465 6139 d 0 h jermar /trunk/ Merge arm32 into trunk.  
2462 6140 d 19 h jermar /trunk/kernel/ Replace gcc-specific __FUNCTION__ with C99 __func__.
suncc's xregs=no%float can be used only on sparc64.
 
2451 6142 d 19 h jermar /trunk/kernel/generic/ JoinMe -> Lingering  
2447 6145 d 23 h jermar /trunk/kernel/generic/src/main/ Split accidently joined lines.  
2446 6145 d 23 h jermar /trunk/kernel/generic/ More efficient and simpler task termination.

Based on the assumption, that after its creation, only the task itself can create more threads for itself,
the last thread with userspace context to execute thread_exit() will perform futex and IPC cleanup. When
the task has no threads, it is destroyed. Both the cleanup and destruction is controlled by reference
counting.

As for userspace threads, even though there could be a global garbage collector for joining threads, it is
much simpler if the uinit thread detaches itself before switching to userspace.

task_kill() is now an idempotent operation. It just instructs the threads within a task to exit.

Change in the name of a thread state: Undead -> JoinMe.
 
2445 6146 d 1 h decky /trunk/ initial merge of branches/fs
(not finished, huge cleanup is needed)
 
2444 6146 d 16 h jermar /trunk/kernel/ First fixes for suncc support.
It is going to be a long way...
 
2441 6146 d 18 h decky /trunk/kernel/ fix ICC compilation  
2440 6146 d 18 h jermar /trunk/kernel/generic/ Fix the problem with sys_thread_create() by splitting the create and attach functionality of
thread_create(). Now it is possible to specify a flag that will cause thread_create() to only allocate and
initialize the thread structure. A call to thread_attach() will make the thread visible to the system.
This arrangement makes it easier to undo creation of a thread in case of a failure in sys_thread_create().
 
2436 6147 d 19 h jermar /trunk/ Fix two memory leaks.

In kernel, kernel_uarg structure needs to be deallocated when a thread
with userspace context is destroyed.

In userspace, the return value of the SYS_THREAD_CREATE must be checked
for error conditions and in case of error, uarg and stack must be freed
up.
 
2359 6160 d 5 h jermar /trunk/ Improve comments for the IPC subsystem.
Fix formatting and indentation.
 
2319 6168 d 5 h decky /trunk/kernel/generic/src/console/ run mcall only on active CPUs  
2310 6170 d 20 h jermar /trunk/kernel/generic/ Cleanup the waitq_wakeup() interface.
Replace numeric constants (i.e. 0)
and boolean constants (i.e. false) with
more readable WAKEUP_FIRST. Also change the
type of the second argument of waitq_wakeup()
to a newly introduced type wakeup_mode_t.

Fix behaviour of waitq_wakeup() in case
that WAKEUP_ALL semantics is required
but no threads are sleeping in the wait
queue. This is a similar fix to that of
Jan Hudecek committed in the RCU branch,
but, IMHO, is more straightforward and
also doesn't eat up previous missed
wakeups.
 
2285 6183 d 4 h jermar /trunk/kernel/generic/src/proc/ Formatting and indentation fixes.  
2275 6187 d 20 h decky /trunk/kernel/generic/ add fancy uptime kconsole command  
2272 6188 d 21 h jermar /trunk/kernel/ Indentation and formatting fixes.  

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