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Rev Age Author Path Log message Diff
2502 6143 d 9 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.		  
2501 6143 d 9 h jermar /trunk/kernel/generic/ Add explicit type for an AVL tree key.
Add function to walk an AVL tree using a supplied walker.		  
2499 6143 d 11 h jermar /trunk/kernel/ Import the AVL tree implementation from the RCU branch.  
2494 6161 d 2 h jermar /trunk/kernel/generic/ Implement a new mechanism for copying data between two address spaces based on
IPC. New system method IPC_M_DATA_SEND is introduced. The implementation is
generic and does not make use of any possible architecture optimizations such as
direct copy from one address space to another.		  
2493 6161 d 6 h jermar /trunk/kernel/generic/include/ipc/ Collapse IPC method numbers.  
2487 6170 d 4 h jermar /trunk/kernel/generic/src/proc/ Kernel stack address was printed twice.  
2476 6182 d 2 h jermar /trunk/ Cleanup.  
2472 6185 d 3 h jermar /trunk/kernel/generic/src/ipc/ Some left-over stuff from the last commit (IPC cleanup and improved
comments.)		  
2471 6185 d 3 h jermar /trunk/ Greatly improve comments in the IPC layer.
Now I think I finally start to understand our IPC internals :-)		  
2470 6189 d 1 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().		  
2467 6189 d 5 h jermar /trunk/ Improve comments for arch-specific implementations of hierarchical
4-level page tables. Improve formatting.		  
2465 6194 d 8 h jermar /trunk/ Merge arm32 into trunk.  
2462 6196 d 2 h jermar /trunk/kernel/ Replace gcc-specific __FUNCTION__ with C99 __func__.
suncc's xregs=no%float can be used only on sparc64.		  
2451 6198 d 3 h jermar /trunk/kernel/generic/ JoinMe -> Lingering  
2447 6201 d 7 h jermar /trunk/kernel/generic/src/main/ Split accidently joined lines.  
2446 6201 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.		  
2445 6201 d 8 h decky /trunk/ initial merge of branches/fs
(not finished, huge cleanup is needed)		  
2444 6201 d 23 h jermar /trunk/kernel/ First fixes for suncc support.
It is going to be a long way...		  
2441 6202 d 1 h decky /trunk/kernel/ fix ICC compilation  
2440 6202 d 1 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().		  

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