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Rev Age Author Path Log message Diff
3034 5893 d 12 h svoboda /branches/tracing/kernel/generic/ Convert kb_cleanup_lock to a mutex  
3014 5896 d 13 h svoboda /branches/tracing/kernel/generic/ Isolate udebug-related task_t fields into udebug_task_t.  
2902 5912 d 13 h svoboda /branches/tracing/kernel/generic/ Implement proper kbox thread shutdown, with all bells and whistles. Use THREAD->debug_active in udebug_stoppable_xx() and friends  
2899 5913 d 2 h svoboda /branches/tracing/ Add support for SET_EVMASK debug operation  
2839 5942 d 4 h svoboda /branches/tracing/kernel/generic/ Add thread_attach_by_id() and use it to do ipc_connect_kbox() with proper locking  
2826 5946 d 12 h svoboda /branches/tracing/kernel/generic/ Move debug_go_call from task struct to thread struct  
2825 5946 d 12 h svoboda /branches/tracing/kernel/generic/ Introduce task debug-states (udebug_task_state_t)  
2808 5948 d 2 h svoboda /branches/tracing/ add kernel answerbox+thread to mediate access to task's memory  
2804 5949 d 8 h svoboda /branches/tracing/kernel/generic/ allow for attaching to tasks with sleeping threads  
2803 5949 d 9 h svoboda /branches/tracing/kernel/generic/src/proc/ fix: initialize debug fields in task structure  
2800 5949 d 13 h svoboda /branches/tracing/kernel/generic/ [tracing] fix initialiation of answerbox->task in ipc_answerbox_init  
2799 5949 d 14 h svoboda /branches/tracing/ Revert all changes in tracing branch (sync to r2785 of trunk)  
2787 5958 d 6 h decky /branches/tracing/ add dynamic linking, debugging and tracing branch  
2745 5987 d 11 h decky /trunk/ code cleanup (mostly signed/unsigned)
allow extra compiler warnings
 
2712 6013 d 8 h decky /trunk/kernel/ prettyprint output  
2632 6074 d 21 h decky /trunk/kernel/generic/src/proc/ try to kill the tasks fewer times by introducing a delay in iterations  
2504 6200 d 3 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.
 
2446 6258 d 7 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.
 
2436 6260 d 3 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.
 
2227 6311 d 16 h decky /trunk/kernel/ start shutdown infrastructure  
2216 6313 d 2 h decky /trunk/ make thread ID 64 bit (task ID is 64 bit already)
cleanup thread syscalls
 
2183 6315 d 6 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 6374 d 7 h decky /trunk/kernel/generic/src/ explicit typecast, fix signed/unsigned comparison  
2109 6375 d 11 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 6382 d 9 h decky /trunk/ huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes
 
2087 6383 d 5 h jermar /trunk/kernel/ Indentaion and formatting changes even Martin will like :-)  
2071 6393 d 2 h jermar /trunk/ (c) versus (C)  
2050 6422 d 12 h decky /trunk/kernel/ benchmarking with statistics (initial)  
2048 6425 d 3 h jermar /trunk/ Formatting and indentation changes.  
2042 6427 d 6 h decky /trunk/kernel/ introduce uncounted threads, whose accounting doesn't affect accumulated task accounting
run tests in kconsole thread again
 
2041 6427 d 7 h decky /trunk/kernel/generic/src/proc/ revert 2040  
2040 6427 d 9 h decky /trunk/kernel/generic/src/proc/ add forgotten btree_remove()  
2039 6427 d 10 h decky /trunk/kernel/generic/ accumulate task accounting, run tests as separate kernel task  
2035 6428 d 7 h decky /trunk/kernel/generic/src/ more fancy kconsole output  
2000 6443 d 11 h decky /trunk/kernel/ move files to more proper locations  
1880 6522 d 1 h jermar /trunk/ Small improvements here and there.  
1864 6528 d 23 h jermar /trunk/ sparc64 update.
- Prototype userspace layer implementation that
at least relates to sparc64 and compiles cleanly.
- Fixes for kernel's preemptible_handler and code
related to running userspace.
- Enable userspace. Several dozen instructions
are now run in userspace! We are pretty near
the userspace milestone for sparc64.
 
1839 6558 d 6 h decky /trunk/kernel/generic/ finish security context isolation  
1820 6565 d 23 h decky /trunk/kernel/generic/ initial security context support  
1787 6583 d 4 h decky / move kernel/trunk, uspace/trunk and boot/trunk to trunk/kernel, trunk/uspace and trunk/boot