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Rev Age Author Path Log message Diff
4055 5771 d 16 h trochtova /branches/dd/ changes in trunk (rev 4054) merged into dd branch  
3022 6054 d 18 h decky /branches/dd/ device drivers branch  
2504 6359 d 10 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 6417 d 13 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 6470 d 23 h decky /trunk/kernel/ start shutdown infrastructure  
2216 6472 d 9 h decky /trunk/ make thread ID 64 bit (task ID is 64 bit already)
cleanup thread syscalls		  
2106 6535 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 6539 d 16 h decky /trunk/kernel/ move ipc structures to ipc.h  
2103 6540 d 9 h decky /trunk/kernel/generic/include/ move timeout_t to timeout.h
move other helper types to thread.h		  
2096 6540 d 11 h decky /trunk/kernel/generic/include/ move thread_t to thread.h  
2093 6540 d 12 h decky /trunk/kernel/ spinlock extern declaration macro  
2092 6540 d 13 h decky /trunk/kernel/generic/include/ move cpu_t to cpu.h  
2090 6541 d 12 h decky /trunk/kernel/generic/include/proc/ cleanup garbage  
2089 6541 d 16 h decky /trunk/ huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes		  
2071 6552 d 8 h jermar /trunk/ (c) versus (C)  
2039 6586 d 16 h decky /trunk/kernel/generic/ accumulate task accounting, run tests as separate kernel task  
1888 6677 d 12 h jermar /trunk/ C99 compliant header guards (hopefully) everywhere in the kernel.
Formatting and indentation changes.
Small improvements in sparc64.		  
1820 6725 d 6 h decky /trunk/kernel/generic/ initial security context support  
1787 6742 d 11 h decky / move kernel/trunk, uspace/trunk and boot/trunk to trunk/kernel, trunk/uspace and trunk/boot  
1780 6749 d 12 h jermar /kernel/trunk/ Replace old __u?? types with respective C99 variants (e.g. uint32_t, int64_t, uintptr_t etc.).  
1702 6770 d 15 h cejka /kernel/trunk/ Kernel doxygen comments updated.  
1587 6778 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 6778 d 15 h jermar /kernel/trunk/generic/ Kill task when its main thread exits.  
1583 6778 d 18 h jermar /kernel/trunk/generic/ Make ktaskclnp call ipc_cleanup and futex_cleanup.  
1579 6779 d 7 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 6779 d 13 h palkovsky /kernel/trunk/generic/ Slightly remodelled ipc hangups to facilitate correct cleanup.
Doc updates for frame allocator.		  
1468 6783 d 13 h jermar /kernel/trunk/ Function for destroying address space for which there is no other reference in the kernel.  
1460 6783 d 16 h jermar /kernel/trunk/generic/ Reference counting for futexes.  
1358 6798 d 12 h jermar /kernel/trunk/generic/ Cleanup after removal of as_area_accept and as_area_send.  
1235 6818 d 17 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 6821 d 13 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 6831 d 11 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 6831 d 14 h jermar /kernel/trunk/ Add task_create_arch() for all architectures.  
1184 6831 d 15 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 6832 d 12 h jermar /kernel/trunk/ Add task_find_by_id().
Add kernel support for SYS_MAP_PHYSMEM.		  
1176 6832 d 17 h jermar /kernel/trunk/generic/ Kernel support for SYS_GET_TASK_ID syscall.  
1174 6832 d 18 h jermar /kernel/trunk/ Start capabilities support.  
1159 6835 d 13 h jermar /kernel/trunk/generic/ Replace list of all tasks with B+tree of all tasks.  
1062 6859 d 7 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 6860 d 17 h palkovsky /kernel/trunk/generic/ Added support for taskid.