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2446 6219 d 14 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.
 
2227 6272 d 23 h decky /trunk/kernel/ start shutdown infrastructure  
2216 6274 d 9 h decky /trunk/ make thread ID 64 bit (task ID is 64 bit already)
cleanup thread syscalls
 
2106 6337 d 16 h jermar /trunk/kernel/ Merge as_t structure into one and leave the differring parts in as_genarch_t.

Indentation and formatting changes in header files.
 
2105 6341 d 17 h decky /trunk/kernel/ move ipc structures to ipc.h  
2103 6342 d 9 h decky /trunk/kernel/generic/include/ move timeout_t to timeout.h
move other helper types to thread.h
 
2096 6342 d 11 h decky /trunk/kernel/generic/include/ move thread_t to thread.h  
2093 6342 d 12 h decky /trunk/kernel/ spinlock extern declaration macro  
2092 6342 d 13 h decky /trunk/kernel/generic/include/ move cpu_t to cpu.h  
2090 6343 d 12 h decky /trunk/kernel/generic/include/proc/ cleanup garbage  
2089 6343 d 16 h decky /trunk/ huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes
 
2071 6354 d 9 h jermar /trunk/ (c) versus (C)  
2039 6388 d 17 h decky /trunk/kernel/generic/ accumulate task accounting, run tests as separate kernel task  
1888 6479 d 12 h jermar /trunk/ C99 compliant header guards (hopefully) everywhere in the kernel.
Formatting and indentation changes.
Small improvements in sparc64.
 
1820 6527 d 6 h decky /trunk/kernel/generic/ initial security context support  
1787 6544 d 11 h decky / move kernel/trunk, uspace/trunk and boot/trunk to trunk/kernel, trunk/uspace and trunk/boot  
1780 6551 d 12 h jermar /kernel/trunk/ Replace old __u?? types with respective C99 variants (e.g. uint32_t, int64_t, uintptr_t etc.).  
1702 6572 d 15 h cejka /kernel/trunk/ Kernel doxygen comments updated.  
1587 6580 d 12 h jermar /kernel/trunk/ task_destroy() implementation, fixes in as_destroy() and task_kill().
This is the first version of HelenOS that would perform complete cleanup leading from thread to destruction of address space.
 
1585 6580 d 15 h jermar /kernel/trunk/generic/ Kill task when its main thread exits.  

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