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Rev Age Author Path Log message Diff
3448 5750 d 18 h svoboda /branches/dynload/ Merge latest trunk changes into dynload  
3403 5754 d 17 h svoboda /branches/dynload/ Merge latest trunk changes into dynload  
3203 5824 d 15 h svoboda /branches/dynload/ Move stuff related to running programs to a separate source file proc/program.c  
3191 5830 d 14 h svoboda /branches/dynload/ Merge latest trunk changes into dynload  
3190 5830 d 14 h svoboda /branches/dynload/ Remove vestiges of loading code coming from trunk  
3155 5844 d 10 h svoboda /branches/dynload/ Make loader less chatty and let init use it, instead of loading binaries itself.  
3153 5844 d 14 h svoboda /branches/dynload/ Merge latest trunk changes into dynload  
3150 5844 d 14 h svoboda /branches/dynload/ Merge trunk changes up to r3090 into dynload (still broken)  
3149 5844 d 14 h svoboda /branches/dynload/ Merge trunk changes up to r3071 into dynload (broken)  
3004 5865 d 12 h svoboda /branches/dynload/ A crude task_spawn() libc function to run a program. A tiny command-line application 'cli' to test it.  
3001 5866 d 13 h svoboda /branches/dynload/kernel/generic/ Kernel support for running programs from userspace.  
2927 5876 d 17 h decky /branches/dynload/ added dynload branch  
2802 5916 d 16 h jermar /trunk/kernel/generic/ Fix initialization of answerbox->task in ipc_answerbox_init.
Contributed by Jiri Svoboda.
 
2745 5954 d 16 h decky /trunk/ code cleanup (mostly signed/unsigned)
allow extra compiler warnings
 
2712 5980 d 13 h decky /trunk/kernel/ prettyprint output  
2632 6042 d 2 h decky /trunk/kernel/generic/src/proc/ try to kill the tasks fewer times by introducing a delay in iterations  
2504 6167 d 8 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 6225 d 12 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 6227 d 8 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 6278 d 21 h decky /trunk/kernel/ start shutdown infrastructure  
2216 6280 d 7 h decky /trunk/ make thread ID 64 bit (task ID is 64 bit already)
cleanup thread syscalls
 
2183 6282 d 11 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 6341 d 12 h decky /trunk/kernel/generic/src/ explicit typecast, fix signed/unsigned comparison  
2109 6342 d 16 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 6349 d 14 h decky /trunk/ huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes
 
2087 6350 d 10 h jermar /trunk/kernel/ Indentaion and formatting changes even Martin will like :-)  
2071 6360 d 7 h jermar /trunk/ (c) versus (C)  
2050 6389 d 17 h decky /trunk/kernel/ benchmarking with statistics (initial)  
2048 6392 d 8 h jermar /trunk/ Formatting and indentation changes.  
2042 6394 d 11 h decky /trunk/kernel/ introduce uncounted threads, whose accounting doesn't affect accumulated task accounting
run tests in kconsole thread again
 
2041 6394 d 12 h decky /trunk/kernel/generic/src/proc/ revert 2040  
2040 6394 d 14 h decky /trunk/kernel/generic/src/proc/ add forgotten btree_remove()  
2039 6394 d 15 h decky /trunk/kernel/generic/ accumulate task accounting, run tests as separate kernel task  
2035 6395 d 12 h decky /trunk/kernel/generic/src/ more fancy kconsole output  
2000 6410 d 16 h decky /trunk/kernel/ move files to more proper locations  
1880 6489 d 6 h jermar /trunk/ Small improvements here and there.  
1864 6496 d 4 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 6525 d 11 h decky /trunk/kernel/generic/ finish security context isolation  
1820 6533 d 4 h decky /trunk/kernel/generic/ initial security context support  
1787 6550 d 9 h decky / move kernel/trunk, uspace/trunk and boot/trunk to trunk/kernel, trunk/uspace and trunk/boot