7314cf708c
Kernel: Only restart certain syscalls with SA_RESTART
...
SA_RESTART is not supposted to restart every function.
2025-06-28 20:25:35 +03:00
db571b4859
Kernel: Allow relockign mutex even when holding a spinlock
...
Only reason mutex locking is now allowed with spinlocks is to prevent
yield.
Also try_lock can be now safely used while holding a spinlock
2025-06-28 19:40:54 +03:00
e8491b34b8
Kernel/LibC: Rework TIOC{G,S}WINSZ more linux like
...
Userspace can freely set terminal size, kernel just updates it when for
example new font is loaded. Also SIGWINCH is now sent by kernel instead
of userspace.
2025-06-28 19:40:54 +03:00
f73bb242f3
Kernel: Save fpu state and flags in signal handler
...
This was causing some weird crashes :D
2025-06-28 16:55:13 +03:00
9e895e5286
Kernel: Use fxsave64 and fxrstor64 on 64 bit target
2025-06-28 16:55:13 +03:00
5b0e5512a8
Kernel: Don't block in send until full message is sent
...
Only block until some data was sent. This allows select + send to be
actually non blocking if used correctly.
Also fixes a bug with non blocking sockets that could not send the full
message is one try.
2025-06-28 16:55:13 +03:00
05a727979a
Kernel: Make sse initialization thread safe
2025-06-28 16:55:13 +03:00
fe62ce4bae
Kernel: Fix spurious wakeup from SYS_SLEEP
2025-06-28 16:55:13 +03:00
4695fa061d
Kernel: Don't panic if UNIX socket is already bound but deleted
2025-06-28 16:55:13 +03:00
83c0ef3514
Kernel: Implement CLOCK_{PROCESS,THREAD}_CPUTIME_ID
2025-06-28 16:55:13 +03:00
93e5d09a63
Kernel/LibC: Implement flock
2025-06-28 16:55:13 +03:00
6d3d41abe2
Kernel: Fix possible division by zero in scheduler
2025-06-28 16:55:13 +03:00
3283359ac8
Kernel: Cleanup ANSI DSR
2025-06-19 19:05:49 +03:00
fff16f6b8c
Kernel: don't directly access user memory in mmap
2025-06-19 19:04:20 +03:00
a347ceba74
Kernel: Cleanup sys_wait sleep/signal handling
2025-06-19 19:03:42 +03:00
05836fab4c
Kernel: Allow accessing fd's inode without having read/search access
...
I have no idea what the point of this was. VFS is already verifying
read and search access
2025-06-19 19:02:28 +03:00
32c35a822b
BuildSystem: binutils1.39->1.44, gcc12.2.0->15.1.0
2025-06-19 19:00:50 +03:00
9c86e5e54d
Kernel: Add ANSI SGR 39 and 49
...
Also debug log unimplemented ANSI SRGs, this makes finding missing
commonly used ANSI SGR codes more easy
2025-06-18 20:34:55 +03:00
125f8b591d
Kernel: Don't crash if socket tries to reconnect
...
:D
2025-06-11 01:54:41 +03:00
e92f039a17
Kernel: Fix tcp sending with already sent unacknowledged bytes
2025-06-06 11:55:44 +03:00
ef76ffa1c1
Kernel: Remove unnecessary hack
...
This is no longer needed as thread unlocks its spinlock before calling
Process::exit() on terminating signal
2025-06-06 11:13:55 +03:00
652eb2346c
Kernel: Fix syscall interrupt disabling
...
If thread had a terminating signal, syscall leaving would try to lock
process's mutex while not having interrupts enabled
2025-06-06 11:12:48 +03:00
66726090ec
Kenrel: Fix TCP connection closing
...
If TCP socket was connected with connect() instead of accept() it would
never send FIN to other end when it was closed.
2025-06-06 11:10:29 +03:00
b668173cba
Kernel: Fix pseudo terminal writability
2025-06-06 11:09:50 +03:00
c6ded82406
Kernel: Fix a deadlock when thread is executing terminating signal
2025-06-06 06:52:27 +03:00
a76c6faffc
Kernel: Fix a deadlock when process is exiting
2025-06-06 06:52:02 +03:00
81ff71a97f
Kernel: Track the number of recursive spinlocks a thread is holding
2025-06-06 06:51:15 +03:00
56db0efe58
Kernel: Add missing file for race condition fixes :)
2025-06-06 04:03:37 +03:00
5eefd98e1b
Kernel: Add debugging macro to dump syscalls that take a long time
2025-06-06 04:00:57 +03:00
eecdad50a6
Kernel: Fix most of mutex + block race conditions
...
All block functions now take an optional mutex parameter that is
atomically unlocked instead of having the user unlock it before hand.
This prevents a ton of race conditions everywhere in the code!
2025-06-06 03:59:22 +03:00
96d5ed9cc7
Kernel: Fix E1000 driver interrupts
...
I have no idea why, but E1000 seems to be missing interrupts frequently
when clearing ICR only at the end of the interrupt handler
2025-06-06 03:45:35 +03:00
73090ecb37
Kernel: TTY set EPOLLOUT
2025-06-05 22:04:51 +03:00
8812704601
Kernel: Make sure IPv4 and ARP packets are not missed
...
This is a really hacky solution but will do until i get atomic
unblocking with respect to locks
2025-06-05 22:03:15 +03:00
0f189d410e
Kernel: Fix unix socket recv from
...
If connection on unix socket was closed and other end tries to recvfrom,
the thread would enter a fucked up state where it held the socket's
spinlock when returning to userspace.
2025-06-05 22:02:53 +03:00
cfeabc4580
Kernel/Terminal: Fix ANSI SGR 8 bit color parsing
2025-06-05 20:43:57 +03:00
f79db874bf
Kernel: Fix ANSI CSI 1J
...
I was accidentally clearing the whole screen when I needed to clear from
cursor to the end of the screen
2025-06-05 02:38:57 +03:00
8de19aff3c
Kernel/Terminal: Fix 24 bit ANSI SGR color parsing
2025-06-05 02:38:07 +03:00
bf41b448d6
Kernel: Fix TCP sending
...
- Fix race condition when adding packet to send buffer before other end
has acknowledged it
- Allow sending multiple packets before receiving ACK for previous ones
2025-06-04 22:21:35 +03:00
448632cf11
Kernel: Add fast path to pselect and ppoll
...
If events are available right away, don't create epoll object to wait
on. Also fix pselect return value to the number of bits set. Previously
return value could've been greater than that if epoll return EPOLLERR or
EPOLLHUP for events that were not listened to
2025-06-04 17:51:22 +03:00
943069b2a3
Kernel: Socket EPIPE and send SIGPIPE on write after hang up
2025-06-03 10:24:44 +03:00
e305698e6b
Kernel: Fix epoll EPOLLHUP and EPOLLERR reporting
2025-06-03 10:23:53 +03:00
4c0b7d44b4
Kernel: Enable ECHOE and ECHOK, support VKILL, fix VEOF
2025-06-02 16:26:53 +03:00
fb466b5af7
Kernel: use termios c_cc values instead of hardcoded characters
2025-06-02 15:54:11 +03:00
7a645b8555
Kernel: Add SMP message StackTrace
...
This event is sent when user presses ctrl+{F1-F12} and it will dump the
corresponding processor's stack trace. This is really helpful for
detecting deadlocks in the system
2025-06-02 11:39:18 +03:00
c5b0d0235f
Kenrel: Allow Processor::send_smp_message to send event to current CPU
2025-06-02 11:39:18 +03:00
e109b5cff6
Kernel: Remove unnecessary locks from Pipe
...
Inode already locks its own mutex when read/write is called there is no
need to explicitly lock them in read_impl/write_impl
2025-06-02 11:39:18 +03:00
9883fb7bf6
Kernel: Rewrite epoll notifying system
...
This removes the need to lock epoll's mutex when notifying epoll. This
prevents a ton of deadlocks when epoll is notified from an interrupt
handler or otherwise with interrupts disabled
2025-06-02 11:39:18 +03:00
b2e3aefa72
Kernel: Don't crash when terminating process with signal
2025-06-01 16:59:02 +03:00
31bcad2535
LibC: Implement truncate
2025-06-01 13:48:03 +03:00
b75970958e
Kernel/LibC: Implement unlinkat
2025-06-01 13:48:03 +03:00
