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4348 5720 d 5 h svoboda /branches/dynload/ Merge latest trunk changes to dynload.  
4342 5721 d 17 h svoboda /branches/dynload/ Merge trunk changes up to r3889 to dynload.  
4337 5721 d 19 h svoboda /branches/dynload/ Merge changes in trunk up to r3741 to dynload.  
3674 5866 d 16 h svoboda /branches/dynload/ Merge latest trunk changes to dynload.  
3569 5894 d 3 h svoboda /branches/dynload/ Merge latest trunk changes into dynload.  
3448 5945 d 5 h svoboda /branches/dynload/ Merge latest trunk changes into dynload  
3190 6025 d 1 h svoboda /branches/dynload/ Remove vestiges of loading code coming from trunk  
3153 6039 d 1 h svoboda /branches/dynload/ Merge latest trunk changes into dynload  
3150 6039 d 1 h svoboda /branches/dynload/ Merge trunk changes up to r3090 into dynload (still broken)  
3149 6039 d 1 h svoboda /branches/dynload/ Merge trunk changes up to r3071 into dynload (broken)  
2927 6071 d 4 h decky /branches/dynload/ added dynload branch  
2907 6073 d 23 h jermar /trunk/kernel/generic/src/proc/ Improve comment for thread_create().  
2790 6117 d 4 h jermar /trunk/kernel/generic/src/proc/ Fix typo ALV tree vs. AVL tree.  
2712 6175 d 0 h decky /trunk/kernel/ prettyprint output  
2504 6361 d 19 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 6362 d 1 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 6388 d 20 h jermar /trunk/kernel/generic/src/proc/ Kernel stack address was printed twice.  
2470 6407 d 17 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 6416 d 19 h jermar /trunk/kernel/generic/ JoinMe -> Lingering  
2446 6419 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.
 
2440 6420 d 17 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 6421 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.
 
2268 6463 d 19 h jermar /trunk/kernel/generic/ Document and assert proper usage of THREAD_FLAG_WIRED.
Original patch by Jan Hudecek.
 
2229 6473 d 1 h jermar /trunk/ Revert some of the changes introduced in revision 2209.
I think it is not correct to remove serialization of pseudo threads in printf_core.c.
With thread-level futex serialization, several pseudo threads running in one thread could easily deadlock
the task.

Add a dedicated futex serialization to thread1.c test only.
 
2216 6474 d 18 h decky /trunk/ make thread ID 64 bit (task ID is 64 bit already)
cleanup thread syscalls
 
2187 6476 d 2 h decky /trunk/kernel/generic/ add syscall for getting current thread ID  
2183 6476 d 22 h jermar /trunk/kernel/generic/ Continue to de-oversynchronize the kernel.
- replace as->refcount with an atomic counter; accesses to this
reference counter are not to be done when the as->lock mutex is held;
this gets us rid of mutex_lock_active();

Remove the possibility of a deadlock between TLB shootdown and asidlock.
- get rid of mutex_lock_active() on as->lock
- when locking the asidlock spinlock, always do it conditionally and with
preemption disabled; in the unsuccessful case, enable interrupts and try again
- there should be no deadlock between TLB shootdown and the as->lock mutexes
- PLEASE REVIEW !!!

Add DEADLOCK_PROBE's to places where we have spinlock_trylock() loops.
 
2118 6535 d 23 h decky /trunk/kernel/generic/src/ explicit typecast, fix signed/unsigned comparison  
2109 6537 d 3 h jermar /trunk/kernel/generic/ Revert thread_interrupt_sleep() to waitq_interrupt_sleep().
I'd prefer that this, IMO, waitq related stuff stays together.
 
2089 6544 d 1 h decky /trunk/ huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes
 
2087 6544 d 21 h jermar /trunk/kernel/ Indentaion and formatting changes even Martin will like :-)  
2071 6554 d 18 h jermar /trunk/ (c) versus (C)  
2067 6565 d 0 h jermar /trunk/kernel/ More formatting changes.  
2050 6584 d 4 h decky /trunk/kernel/ benchmarking with statistics (initial)  
2042 6588 d 22 h decky /trunk/kernel/ introduce uncounted threads, whose accounting doesn't affect accumulated task accounting
run tests in kconsole thread again
 
2039 6589 d 2 h decky /trunk/kernel/generic/ accumulate task accounting, run tests as separate kernel task  
2032 6590 d 1 h decky /trunk/kernel/generic/src/proc/ proper initialization of last_cycle  
2030 6590 d 2 h decky /trunk/kernel/ thread CPU cycles accounting  
1854 6696 d 3 h jermar /trunk/kernel/ Define architecture-specific thread sub-constructors and sub-destructors on all architectures.
Define the THREAD_FLAG_USPACE which means that the thread runs in user space.
The forementioned changes allow for allocating of user window buffer on sparc64
threads that execute in userspace.

A lot of formatting and indentation fixes.
 
1839 6719 d 22 h decky /trunk/kernel/generic/ finish security context isolation