Rev |
Age |
Author |
Path |
Log message |
Diff |
2614 |
6118 d 4 h |
jermar |
/trunk/kernel/generic/include/ipc/ |
Grow the IPC data structures from 3 to 5 payload arguments.
No IPC API changes so far. |
|
2605 |
6120 d 2 h |
jermar |
/trunk/ |
Start support for six syscall arguments.
This breaks all architectures. |
|
2573 |
6144 d 0 h |
jermar |
/trunk/kernel/generic/include/lib/ |
Add SHF_TLS ELF section header flag.
This will be needed for detecting alignment of TLS sections of userspace tasks
loaded at runtime. |
|
2572 |
6162 d 13 h |
jermar |
/trunk/kernel/ |
Remove duplicit implementation of strlen() in kernel, rename is_digit(),
is_white() and co. to their standard names (e.g. isdigit(), isspace()) and
remove duplicit implementation of isdigit(). Fix cstyle in kernel printf()
implementation. |
|
2556 |
6168 d 8 h |
jermar |
/trunk/kernel/generic/ |
Rename as_get_size() to as_area_get_size() and add a doxygen comment. |
|
2550 |
6169 d 2 h |
cejka |
/trunk/ |
Fixed naming convention in IPC. |
|
2527 |
6181 d 8 h |
jermar |
/trunk/ |
VFS work.
Added mandatory VFS_LOOKUP
Handling of VFS_REGISTER request should be now more or less complete.
Added code that inserts the new fs_info structure into the list of registered
filesystems and creates a callback connection to the client FS. |
|
2523 |
6182 d 10 h |
jermar |
/trunk/ |
VFS work.
Now, each VFS connection fibril will accept requests in a loop. The idea is that
each connection will be potentially reused for multiple requests before it is
closed by the server.
More VFS_REGISTER bits. Make use of the IPC_M_DATA_SEND wrappers introduced in
the previous commit.
Add enum members for more VFS operations. |
|
2504 |
6229 d 23 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. |
|
2502 |
6230 d 5 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 |
6230 d 5 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 |
6230 d 7 h |
jermar |
/trunk/kernel/ |
Import the AVL tree implementation from the RCU branch. |
|
2494 |
6247 d 22 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 |
6248 d 2 h |
jermar |
/trunk/kernel/generic/include/ipc/ |
Collapse IPC method numbers. |
|
2476 |
6268 d 22 h |
jermar |
/trunk/ |
Cleanup. |
|
2471 |
6271 d 23 h |
jermar |
/trunk/ |
Greatly improve comments in the IPC layer.
Now I think I finally start to understand our IPC internals :-) |
|
2465 |
6281 d 4 h |
jermar |
/trunk/ |
Merge arm32 into trunk. |
|
2462 |
6282 d 22 h |
jermar |
/trunk/kernel/ |
Replace gcc-specific __FUNCTION__ with C99 __func__.
suncc's xregs=no%float can be used only on sparc64. |
|
2451 |
6284 d 23 h |
jermar |
/trunk/kernel/generic/ |
JoinMe -> Lingering |
|
2446 |
6288 d 3 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 |
6288 d 4 h |
decky |
/trunk/ |
initial merge of branches/fs
(not finished, huge cleanup is needed) |
|
2444 |
6288 d 19 h |
jermar |
/trunk/kernel/ |
First fixes for suncc support.
It is going to be a long way... |
|
2441 |
6288 d 21 h |
decky |
/trunk/kernel/ |
fix ICC compilation |
|
2440 |
6288 d 21 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(). |
|
2310 |
6313 d 0 h |
jermar |
/trunk/kernel/generic/ |
Cleanup the waitq_wakeup() interface.
Replace numeric constants (i.e. 0)
and boolean constants (i.e. false) with
more readable WAKEUP_FIRST. Also change the
type of the second argument of waitq_wakeup()
to a newly introduced type wakeup_mode_t.
Fix behaviour of waitq_wakeup() in case
that WAKEUP_ALL semantics is required
but no threads are sleeping in the wait
queue. This is a similar fix to that of
Jan Hudecek committed in the RCU branch,
but, IMHO, is more straightforward and
also doesn't eat up previous missed
wakeups. |
|
2275 |
6330 d 0 h |
decky |
/trunk/kernel/generic/ |
add fancy uptime kconsole command |
|
2268 |
6332 d 0 h |
jermar |
/trunk/kernel/generic/ |
Document and assert proper usage of THREAD_FLAG_WIRED.
Original patch by Jan Hudecek. |
|
2227 |
6341 d 12 h |
decky |
/trunk/kernel/ |
start shutdown infrastructure |
|
2218 |
6342 d 19 h |
decky |
/trunk/kernel/ |
support the possibility to send EOI or Interrupt Acknowledgement
prior to processing the interrupt
(this is essential on some architectures to prevent preemption deadlock) |
|
2216 |
6342 d 23 h |
decky |
/trunk/ |
make thread ID 64 bit (task ID is 64 bit already)
cleanup thread syscalls |
|
2208 |
6343 d 1 h |
decky |
/trunk/kernel/generic/ |
use spinlock only on console output, not other print functions
cleanup |
|
2187 |
6344 d 6 h |
decky |
/trunk/kernel/generic/ |
add syscall for getting current thread ID |
|
2183 |
6345 d 3 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. |
|
2170 |
6349 d 20 h |
jermar |
/trunk/kernel/ |
Simplify synchronization in as_switch().
The function was oversynchronized, which
was causing deadlocks on the address
space mutex.
Now, address spaces can only be switched
when the asidlock is held. This also protects
stealing of ASIDs. No other synchronization
is necessary. |
|
2142 |
6353 d 4 h |
jermar |
/trunk/kernel/generic/include/mm/ |
Remove out of date comment. |
|
2128 |
6396 d 23 h |
jermar |
/trunk/ |
Add arm32 architecture. The 32 suffix is used to specify that 16-bit Thumb
instructions are not used. The arm32 code is mostly composed of placeholders
that need to be replaced by real implementation. So far, the arm32 tree
only compiles. If run under GXEmul simulator, an infinit loop at the
kernel entry point will be entered. |
|
2126 |
6397 d 20 h |
decky |
/trunk/kernel/ |
small cleanup, more work coming |
|
2125 |
6397 d 23 h |
decky |
/trunk/ |
experimental support for Objective C
(disabled by default) |
|
2124 |
6398 d 0 h |
decky |
/trunk/kernel/generic/ |
implement simple realloc() |
|
2122 |
6404 d 3 h |
decky |
/trunk/kernel/generic/ |
explicit typecast, fix signed/unsigned comparison |
|