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Rev Age Author Path Log message Diff
4055 5726 d 8 h trochtova /branches/dd/ changes in trunk (rev 4054) merged into dd branch  
3022 6009 d 10 h decky /branches/dd/ device drivers branch  
2504 6314 d 2 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 6372 d 5 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 6425 d 15 h decky /trunk/kernel/ start shutdown infrastructure  
2216 6427 d 1 h decky /trunk/ make thread ID 64 bit (task ID is 64 bit already)
cleanup thread syscalls		  
2106 6490 d 7 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 6494 d 8 h decky /trunk/kernel/ move ipc structures to ipc.h  
2103 6495 d 1 h decky /trunk/kernel/generic/include/ move timeout_t to timeout.h
move other helper types to thread.h		  
2096 6495 d 3 h decky /trunk/kernel/generic/include/ move thread_t to thread.h  
2093 6495 d 4 h decky /trunk/kernel/ spinlock extern declaration macro  
2092 6495 d 5 h decky /trunk/kernel/generic/include/ move cpu_t to cpu.h  
2090 6496 d 4 h decky /trunk/kernel/generic/include/proc/ cleanup garbage  
2089 6496 d 7 h decky /trunk/ huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes		  
2071 6507 d 0 h jermar /trunk/ (c) versus (C)  
2039 6541 d 8 h decky /trunk/kernel/generic/ accumulate task accounting, run tests as separate kernel task  
1888 6632 d 4 h jermar /trunk/ C99 compliant header guards (hopefully) everywhere in the kernel.
Formatting and indentation changes.
Small improvements in sparc64.		  
1820 6679 d 21 h decky /trunk/kernel/generic/ initial security context support  
1787 6697 d 2 h decky / move kernel/trunk, uspace/trunk and boot/trunk to trunk/kernel, trunk/uspace and trunk/boot  
1780 6704 d 4 h jermar /kernel/trunk/ Replace old __u?? types with respective C99 variants (e.g. uint32_t, int64_t, uintptr_t etc.).  
1702 6725 d 6 h cejka /kernel/trunk/ Kernel doxygen comments updated.  
1587 6733 d 3 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 6733 d 7 h jermar /kernel/trunk/generic/ Kill task when its main thread exits.  
1583 6733 d 10 h jermar /kernel/trunk/generic/ Make ktaskclnp call ipc_cleanup and futex_cleanup.  
1579 6733 d 23 h jermar /kernel/trunk/generic/ Framework for task_kill().
Some pieces (e.g. implementation of ktask_cleanup() kernel thread and
task_destroy() function) are missing.
Changed locking order for task lock, threads_lock and thread lock from
threads_lock, thread lock, task lock to task lock, threads_lock, thread lock.		  
1568 6734 d 5 h palkovsky /kernel/trunk/generic/ Slightly remodelled ipc hangups to facilitate correct cleanup.
Doc updates for frame allocator.		  
1468 6738 d 4 h jermar /kernel/trunk/ Function for destroying address space for which there is no other reference in the kernel.  
1460 6738 d 8 h jermar /kernel/trunk/generic/ Reference counting for futexes.  
1358 6753 d 4 h jermar /kernel/trunk/generic/ Cleanup after removal of as_area_accept and as_area_send.  
1235 6773 d 9 h jermar /kernel/trunk/generic/ Implementation of SYS_AS_AREA_ACCEPT and SYS_AS_AREA_SEND syscalls.
Note that these replace previously declared SYS_AS_AREA_SHARE_APPROVE
and SYS_AS_AREA_SHARE_PERFORM.		  
1227 6776 d 5 h jermar /kernel/trunk/ Reorganize syscall names to better correspond to kernel architecture.
Add dummy placeholders for SYS_AS_AREA_SHARE_APPROVE and
SYS_AS_AREA_SHARE_PERFORM syscalls.		  
1187 6786 d 3 h jermar /kernel/trunk/ Cleanup pm.c and pm.h code on ia32 and amd64.
Add before_task_runs() and before_task_runs_arch() for each architecture.
Add ia32 and amd64 code to ensure I/O Permission Bitmap update.		  
1185 6786 d 6 h jermar /kernel/trunk/ Add task_create_arch() for all architectures.  
1184 6786 d 6 h jermar /kernel/trunk/ Move arch/thread.h to arch/proc/thread.h on all architectures.
Replace ARCH_THREAD_DATA with new thread_arch_t arch on all architectures.
Similarily, add task_arch_t arch on all architectures.
On amd64 and ia32, grow the TSS segment by 64K + 1B to support IO port
permission bitmap. For the same reason, define per task IO port permission bitmaps
on ia32 and amd64.		  
1178 6787 d 4 h jermar /kernel/trunk/ Add task_find_by_id().
Add kernel support for SYS_MAP_PHYSMEM.		  
1176 6787 d 9 h jermar /kernel/trunk/generic/ Kernel support for SYS_GET_TASK_ID syscall.  
1174 6787 d 10 h jermar /kernel/trunk/ Start capabilities support.  
1159 6790 d 5 h jermar /kernel/trunk/generic/ Replace list of all tasks with B+tree of all tasks.  
1062 6813 d 22 h jermar /kernel/trunk/ It is now possible to associate symbolic names with both threads and tasks.
More verbose kconsole threads, tasks and scheduler commands.		  
1005 6815 d 9 h palkovsky /kernel/trunk/generic/ Added support for taskid.