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Rev Age Author Path Log message Diff
4691 5454 d 3 h svoboda /branches/dynload/ Merge trunk changes up to r4686.  
4348 5564 d 13 h svoboda /branches/dynload/ Merge latest trunk changes to dynload.  
4345 5566 d 0 h svoboda /branches/dynload/ Merge trunk changes up to r4040 to dynload.  
4344 5566 d 0 h svoboda /branches/dynload/ Merge trunk changes up to r3988 to dynload.  
4343 5566 d 1 h svoboda /branches/dynload/ Merged trunk changes up to r3925 to dynload.  
4342 5566 d 1 h svoboda /branches/dynload/ Merge trunk changes up to r3889 to dynload.  
4339 5566 d 2 h svoboda /branches/dynload/ Merge trunk changes up to r3802 to dynload.  
4337 5566 d 2 h svoboda /branches/dynload/ Merge changes in trunk up to r3741 to dynload.  
3674 5711 d 0 h svoboda /branches/dynload/ Merge latest trunk changes to dynload.  
3569 5738 d 11 h svoboda /branches/dynload/ Merge latest trunk changes into dynload.  
3448 5789 d 12 h svoboda /branches/dynload/ Merge latest trunk changes into dynload  
3403 5793 d 11 h svoboda /branches/dynload/ Merge latest trunk changes into dynload  
3204 5863 d 9 h svoboda /branches/dynload/kernel/generic/src/proc/ Update stale docblocks in proc/program.c  
3203 5863 d 10 h svoboda /branches/dynload/ Move stuff related to running programs to a separate source file proc/program.c  
3191 5869 d 8 h svoboda /branches/dynload/ Merge latest trunk changes into dynload  
3190 5869 d 8 h svoboda /branches/dynload/ Remove vestiges of loading code coming from trunk  
3155 5883 d 4 h svoboda /branches/dynload/ Make loader less chatty and let init use it, instead of loading binaries itself.  
3153 5883 d 8 h svoboda /branches/dynload/ Merge latest trunk changes into dynload  
3150 5883 d 8 h svoboda /branches/dynload/ Merge trunk changes up to r3090 into dynload (still broken)  
3149 5883 d 9 h svoboda /branches/dynload/ Merge trunk changes up to r3071 into dynload (broken)  
3004 5904 d 6 h svoboda /branches/dynload/ A crude task_spawn() libc function to run a program. A tiny command-line application 'cli' to test it.  
3001 5905 d 7 h svoboda /branches/dynload/kernel/generic/ Kernel support for running programs from userspace.  
2927 5915 d 12 h decky /branches/dynload/ added dynload branch  
2907 5918 d 6 h jermar /trunk/kernel/generic/src/proc/ Improve comment for thread_create().  
2802 5955 d 11 h jermar /trunk/kernel/generic/ Fix initialization of answerbox->task in ipc_answerbox_init.
Contributed by Jiri Svoboda.
 
2790 5961 d 12 h jermar /trunk/kernel/generic/src/proc/ Fix typo ALV tree vs. AVL tree.  
2765 5982 d 2 h jermar /trunk/kernel/generic/src/proc/ tasklet.c needs to include config.h  
2746 5993 d 5 h decky /trunk/kernel/ start merging tasklets (more or less a rewrite)  
2745 5993 d 10 h decky /trunk/ code cleanup (mostly signed/unsigned)
allow extra compiler warnings
 
2712 6019 d 8 h decky /trunk/kernel/ prettyprint output  
2632 6080 d 21 h decky /trunk/kernel/generic/src/proc/ try to kill the tasks fewer times by introducing a delay in iterations  
2504 6206 d 2 h jermar /trunk/kernel/generic/ Give the AVL tree walkers the possibility to take an argument.
Each walker is now supposed to return a bool value to support walk termination.

Switch over from the tasks_btree B+tree to tasks_tree AVL tree.
This makes the fix for ticket #48 complete.
 
2502 6206 d 8 h jermar /trunk/kernel/generic/ Replace the threads_btree B+tree with an AVL tree. The new variable is called
threads_tree. For printing list of threads, use the new AVL tree walker
mechanism.

This solves half of ticket #48.
 
2487 6233 d 3 h jermar /trunk/kernel/generic/src/proc/ Kernel stack address was printed twice.  
2470 6252 d 0 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().
 
2451 6261 d 2 h jermar /trunk/kernel/generic/ JoinMe -> Lingering  
2446 6264 d 6 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.
 
2440 6265 d 0 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 6266 d 2 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.
 
2310 6289 d 3 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.