Bananymous
a5b4cee298
Kernel: Load USTAR from a boot module if loading root partition fails
...
This allows banan-os to boot on hardware where we don't have working
storage driver or the storage driver fails (pretty common with my usb
mass storage drivers...)
2025-07-02 00:17:42 +03:00
Bananymous
17f1ac10e3
Kernel: Don't ignore modules passed with multiboot2
2025-07-02 00:17:42 +03:00
Bananymous
c67198032f
Kernel: Rewrite TmpFS block and inode allocation
...
This makes creating files and appending to then A LOT faster. Some code
I tested took 40 seconds in the previous implementation and less than a
second on the new one!
This code is really sketcy, I hope I'll never have to touch it again :)
2025-07-02 00:17:42 +03:00
Bananymous
107b092982
Kernel: Allow arbitrary sized tmpfs files
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The 2 block limit started to get annoying :D
2025-07-02 00:17:42 +03:00
Bananymous
bac06e45a4
Kernel: Fix TmpSymlinkInode target getting/setting
2025-07-02 00:17:42 +03:00
Bananymous
0e8a68831c
Kernel: Fix TmpInode chmod not preserving file type
2025-07-02 00:17:42 +03:00
Bananymous
5912abd541
Kernel: Add error reporting for readonly mounted filesystems
2025-07-02 00:17:42 +03:00
Bananymous
13d33995cb
Kernel: Make sure PageTable::fast_page gets passed page aligned addr
2025-06-30 01:48:47 +03:00
Bananymous
c8c05f62b4
Kernel: Remove unused FileSystem::dev
2025-06-29 00:29:03 +03:00
Bananymous
ebf2b16d09
Kernel: Implement chown to ext2 and tmpfs
2025-06-28 21:28:54 +03:00
Bananymous
7314cf708c
Kernel: Only restart certain syscalls with SA_RESTART
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SA_RESTART is not supposted to restart every function.
2025-06-28 20:25:35 +03:00
Bananymous
db571b4859
Kernel: Allow relockign mutex even when holding a spinlock
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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
Bananymous
e8491b34b8
Kernel/LibC: Rework TIOC{G,S}WINSZ more linux like
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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
Bananymous
f73bb242f3
Kernel: Save fpu state and flags in signal handler
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This was causing some weird crashes :D
2025-06-28 16:55:13 +03:00
Bananymous
9e895e5286
Kernel: Use fxsave64 and fxrstor64 on 64 bit target
2025-06-28 16:55:13 +03:00
Bananymous
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
Bananymous
05a727979a
Kernel: Make sse initialization thread safe
2025-06-28 16:55:13 +03:00
Bananymous
fe62ce4bae
Kernel: Fix spurious wakeup from SYS_SLEEP
2025-06-28 16:55:13 +03:00
Bananymous
4695fa061d
Kernel: Don't panic if UNIX socket is already bound but deleted
2025-06-28 16:55:13 +03:00
Bananymous
83c0ef3514
Kernel: Implement CLOCK_{PROCESS,THREAD}_CPUTIME_ID
2025-06-28 16:55:13 +03:00
Bananymous
93e5d09a63
Kernel/LibC: Implement flock
2025-06-28 16:55:13 +03:00
Bananymous
6d3d41abe2
Kernel: Fix possible division by zero in scheduler
2025-06-28 16:55:13 +03:00
Bananymous
3283359ac8
Kernel: Cleanup ANSI DSR
2025-06-19 19:05:49 +03:00
Bananymous
fff16f6b8c
Kernel: don't directly access user memory in mmap
2025-06-19 19:04:20 +03:00
Bananymous
a347ceba74
Kernel: Cleanup sys_wait sleep/signal handling
2025-06-19 19:03:42 +03:00
Bananymous
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
Bananymous
32c35a822b
BuildSystem: binutils1.39->1.44, gcc12.2.0->15.1.0
2025-06-19 19:00:50 +03:00
Bananymous
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
Bananymous
125f8b591d
Kernel: Don't crash if socket tries to reconnect
...
:D
2025-06-11 01:54:41 +03:00
Bananymous
e92f039a17
Kernel: Fix tcp sending with already sent unacknowledged bytes
2025-06-06 11:55:44 +03:00
Bananymous
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
Bananymous
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
Bananymous
66726090ec
Kenrel: Fix TCP connection closing
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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
Bananymous
b668173cba
Kernel: Fix pseudo terminal writability
2025-06-06 11:09:50 +03:00
Bananymous
c6ded82406
Kernel: Fix a deadlock when thread is executing terminating signal
2025-06-06 06:52:27 +03:00
Bananymous
a76c6faffc
Kernel: Fix a deadlock when process is exiting
2025-06-06 06:52:02 +03:00
Bananymous
81ff71a97f
Kernel: Track the number of recursive spinlocks a thread is holding
2025-06-06 06:51:15 +03:00
Bananymous
56db0efe58
Kernel: Add missing file for race condition fixes :)
2025-06-06 04:03:37 +03:00
Bananymous
5eefd98e1b
Kernel: Add debugging macro to dump syscalls that take a long time
2025-06-06 04:00:57 +03:00
Bananymous
eecdad50a6
Kernel: Fix most of mutex + block race conditions
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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
Bananymous
96d5ed9cc7
Kernel: Fix E1000 driver interrupts
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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
Bananymous
73090ecb37
Kernel: TTY set EPOLLOUT
2025-06-05 22:04:51 +03:00
Bananymous
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
Bananymous
0f189d410e
Kernel: Fix unix socket recv from
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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
Bananymous
cfeabc4580
Kernel/Terminal: Fix ANSI SGR 8 bit color parsing
2025-06-05 20:43:57 +03:00
Bananymous
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
Bananymous
8de19aff3c
Kernel/Terminal: Fix 24 bit ANSI SGR color parsing
2025-06-05 02:38:07 +03:00
Bananymous
bf41b448d6
Kernel: Fix TCP sending
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- 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
Bananymous
448632cf11
Kernel: Add fast path to pselect and ppoll
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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
Bananymous
943069b2a3
Kernel: Socket EPIPE and send SIGPIPE on write after hang up
2025-06-03 10:24:44 +03:00