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Author SHA1 Message Date
Bananymous 90deb9fb43 BAN: Make debug output thread safe 
Now file lock is only acquired once per message, not once per character
 2026-01-09 20:30:35 +02:00
Bananymous 12489a4c6b Kernel: Fix 32 bit target compile and runtime 
Apparently I have to reload stack in the fork trampoline. Not sure why
or why not on x86_64. Also sse builtins did not compile
 2026-01-09 17:06:57 +02:00
Bananymous 74f70ae4bd Kernel/LibC: Use builtin functions over inline asm 
Getting flags and saving/restoring sse state and reading TSC can be done
using compiler builtins
 2026-01-09 15:39:19 +02:00
Bananymous a9ceab0415 Kernel: Use syscall/sysret for syscalls in x86_64 2026-01-09 15:18:58 +02:00
Bananymous 94bd74d0bb BuildSystem: Update qemu script 
Default to intel-hda instead of ac97 for audio

If we are accelerating with kvm, use host cpu and disable migratable to
allow invariant TSC
 2026-01-08 17:16:20 +02:00
Bananymous b2d8199480 ports/openal-soft: Add SDL2 as a dependency 2026-01-08 17:13:59 +02:00
Bananymous e60f3711f8 ports: Update openssl 3.3.1->3.6.0 2026-01-08 17:13:59 +02:00
Bananymous 6ec9e4f7b8 ports: Update freetype 2.13.3->2.14.1 2026-01-08 17:13:59 +02:00
Bananymous 9eb3834ae5 Kernel: Add syscall-less clock_gettime 
If the processor has invariant TSC it can be used to measure time. We
keep track of the last nanosecond and TSC values and offset them based
on the current TSC. This allows getting current time in userspace.

The implementation maps a single RO page to every processes' address
space. The page contains the TSC info which gets updated every 100 ms.
If the processor does not have invariant TSC, this page will not
indicate the capability for TSC based timing.

There was the problem about how does a processor know which cpu it is
running without doing syscall. TSC counters may or may not be
synchronized between cores, so we need a separate TSC info for each
processor. I ended up adding sequence of bytes 0..255 at the start of
the shared page. When a scheduler gets a new thread, it updates the
threads gs/fs segment to point to the byte corresponding to the current
cpu.

This TSC based timing is also used in kernel. With 64 bit HPET this
probably does not bring much of a benefit, but on PIT or 32 bit HPET
this removes the need to aquire a spinlock to get the current time.

This change does force the userspace to not use gs/fs themselves and
they are both now reserved. Other one is used for TLS (this can be
technically used if user does not call libc code) and the other for
the current processor index (cannot be used as kernel unconditionally
resets it after each load balance).

I was looking at how many times timer's current time was polled
(userspace and kernel combined). When idling in window manager, it was
around 8k times/s. When running doom it peaked at over 1 million times
per second when loading and settled at ~30k times/s.
 2026-01-08 17:13:59 +02:00
Bananymous ee57cf3e9a Kernel: Expose usb device's device descriptor 
This is used by the joystick detection code but i forgot to commit this
:D
 2026-01-08 13:46:11 +02:00
Bananymous fea5d1d82b BAN: Fix wrong include in heap 2026-01-07 22:12:20 +02:00
Bananymous c84a30d4dd ports/SDL2: Update to new joystick interface 2026-01-07 19:07:42 +02:00
Bananymous 24d91eee90 Kernel/LibInput: Rework Joystick handling 
Joystick axis and buttons are now named to standard values, this allows
interfacing multiple different controllers (only DS3 is supported)

Add ioctl calls for userspace to set joystick player leds and rumble

Only use DS3 code paths when we detect that the attached device is
actually an DS3 controller

update test-joystick program to the new interface and add support to
control rumble and player leds
 2026-01-07 19:01:07 +02:00
Bananymous a5318448f5 userspace: Add audioctl utility to configure audio server 2026-01-06 22:26:11 +02:00
Bananymous b7c40eeb57 AudioServer: Handle multiple audio devices with multiple pins 
This makes audio server configurable during runtime!
 2026-01-06 22:26:11 +02:00
Bananymous e7c9be1875 AudioServer: Increase send buffer size and hardcode volume to 20% 2026-01-06 22:26:11 +02:00
Bananymous 8f1b314802 Kernel: Add ioctls to select audio device's output pin 2026-01-06 22:26:11 +02:00
Bananymous da6794c8ce Kernel: Implement HD audio driver 
This is very basic and does not support a lot of stuff (like changing
the output pin :D)
 2026-01-06 22:26:10 +02:00
Bananymous e926beba5a test-mouse: Fix mouse fd cleanup 
I was creating a local variable shadowing the global one. This prevented
cleanup to close it. (this is not really necessary as the program dies
anyway)
 2026-01-06 21:58:56 +02:00
Bananymous 3ad053cf6d image: Add option to change resize algoritm 
Also benchmark timing is now done cpu clock, not monotonic one
 2026-01-06 21:58:56 +02:00
Bananymous bc11469a0b mkdir: Fix mkdir error handling 2026-01-06 21:58:56 +02:00
Bananymous a00695bdac LibC: Add stubs that I have locally 
I'm not sure if these are used by anything but I would assume so as I
have added them :D

functions added:
- getprotobyname
- open_memstream
- munlock
- lockf
- nice
- crypt
- getsid
- wcstoul
 2026-01-06 21:58:56 +02:00
Bananymous 89959b800c LibC: Implement random and srandom 2026-01-06 21:58:56 +02:00
Bananymous 3e19c3b62e LibC: Fix timeradd and timersub overflow/underflow 2026-01-06 21:58:56 +02:00
Bananymous d970debb4d LibC: Define MAXPATHLEN in sys/param.h 
This file is not POSIX, but some software seems to rely on it
 2026-01-06 21:58:56 +02:00
Bananymous d0ba52073f LibC: Add stubs for shm_* functions 2026-01-06 21:58:56 +02:00
Bananymous 943e3b6f51 LibC: Define IN_CLASS* macros 
These are not POSIX but some software seems to rely on them
 2026-01-06 21:58:56 +02:00
Bananymous 25d43682aa LibC: Bump FOPEN_MAX 16->64 2026-01-06 21:58:56 +02:00
Bananymous ad16de59f8 Kernel: Implement basic F_{GET,SET}LK{,W} 
At the moment these lock the whole file which is not what is supposed to
happen. Some port was trying to use these and this seems to work for
that. This may cause deadlocks but that should be easy enough to find
the reason because of the debug warnings
 2026-01-06 21:58:56 +02:00
Bananymous 8634bbb792 Kernel: Don't save/restore sse or reschedule on spurious interrupts 
I think these should be just fully ignored :D
 2026-01-06 21:58:56 +02:00
Bananymous 60ec5d30fd init: Start Clipboard server on startup 
I had forgotten to commit this when I added the clipboard server :D
 2026-01-06 21:58:56 +02:00
Bananymous 7667fe6ca5 LibC: Implement sem_timedwait 2026-01-06 21:58:56 +02:00
Bananymous 4b5a8196c3 Kernel: Fix bitmap byte index calculation in PMM 
No idea how I had not crashed here earlier, but running on real hw with
a bit initrd ended up crashing :D
 2026-01-04 01:16:43 +02:00
Bananymous 706c0816dd Kernel: Move smp_initialized flag after schedulers are initialized 
Before this real hardware failed to boot with smp enabled. Allocating
the idle thread does a page mapping which ends up broadcasting TLB
shootdown to other processes. This ends up failing somewhere halting the
processors never allowing them to initialize their scheduler
 2026-01-03 23:39:07 +02:00
Bananymous a8aa89362d ports/SDL2: Add support for game controllers 
SuperTux and tuxracer now work with controller support!
 2026-01-03 20:42:42 +02:00
Bananymous 7964698ae5 userspace: Add simple joystick test app 2026-01-03 20:42:42 +02:00
Bananymous 65664b0d65 Kernel: Add support for DualShock 3 controllers 
This driver accepts any HID joystick devices but button and axis
mappings will only work on a PS3 controller
 2026-01-03 20:07:08 +02:00
Bananymous 08bfa0971e Kernel: Rework storage device and disk cache locking 
Syncing the disk cache no longer blocks the underlying storage device
and the disk cache itself during sync
 2026-01-02 18:06:56 +02:00
Bananymous 912c5ea0bf Kernel: Implement basic RWLock 2026-01-02 17:50:22 +02:00
Bananymous 6cdf5a5a7f Kernel: Make AHCI controller thread safe 2026-01-02 17:50:22 +02:00
Bananymous 50ba743faf Terminal: Cleanup CSI handling and add =c,>c,c,E,F 2026-01-02 17:13:46 +02:00
Bananymous e26aac3067 Kernel: Decrease the number of syncs done by ext2 inodes 
Each allocated inode used to call sync(). Each sync reads and writes
a block from the filesystem. Doing a 1 MiB write ended up syncing around
257 times
 2026-01-01 23:54:09 +02:00
Bananymous 941e8aa5d5 Kernel: Optimize ext2 filesystem 
block lookup can now also allocate blocks so there is no need to do
multiple lookups of the block did not exist
 2026-01-01 23:15:35 +02:00
Bananymous 33b6536e6b Kernel: Make disk cache entry lookup O(log n) 
I have absolutely no idea why i was doing a linear lookup here :D
 2026-01-01 20:40:38 +02:00
Bananymous 9fbd9288b2 Kernel: Fix symlink deletion from tmpfs 
Small symlinks store their target in inline storage of data block
indices. Freeing blocks did not account for this and tried to interpret
the link target as block inidices to delete
 2026-01-01 20:40:38 +02:00
Bananymous bef1a56007 ports: Update git 2.48.1->2.52.0 
also remove curl link hack as updating curl port fixed the issue
 2026-01-01 20:40:38 +02:00
Bananymous bc71ff5e81 ports: Update curl 8.11.1->8.17.0 
This fixes broken DT_NEEDED dependencies in curl!
 2026-01-01 20:40:38 +02:00
Bananymous bd50444d06 ports: Update ca-certificates 2024-07-02 -> 2025-12-02 2025-12-31 19:28:55 +02:00
Bananymous 2efd6f92b2 rm: add -f and -i options 
rm *should* now be posix compatible
 2025-12-31 19:28:55 +02:00
Bananymous 7fdfad4088 Kernel: Mount /tmp with sticky bit set 2025-12-31 19:28:55 +02:00
Bananymous 31a1968798 Kernel: Cleanup scheduling while idling 
If there are no threads in the run queue and we are idle, attempt to
wake up threads from the sleep queue
 2025-12-31 19:28:55 +02:00
Bananymous b0bd4ad546 Kernel: Fix dup2 return value 
We returned the wrong fd number :D
 2025-12-31 19:28:55 +02:00
Bananymous dc454b9a6a Kernel: Fix SA_RESETHAND handling order 
if SA_RESETHAND was set, alt stack would not get used
 2025-12-31 19:28:55 +02:00
Bananymous f06e5d33e7 Kernel: Rework socket binding to an address 
Sockets are no longer bound to an interface, but an ipv4 address. This
allows servers at 0.0.0.0 talk to multiple different interfaces
 2025-12-31 19:28:55 +02:00
Bananymous efdbd1576f ports/SDL2: disable static lib and enable semaphores 
Also add libiconv as a dep so SDL_iconv_string etc works
 2025-12-28 15:30:02 +02:00
Bananymous 0421fbdc25 LibC: Implement sem_getvalue 2025-12-28 15:29:37 +02:00
Bananymous bd426199f8 Kernel: Remove unused (and broken) code from signal trampoline 2025-12-28 03:53:38 +02:00
Bananymous 8e00b3d110 ports: Add ffmpeg port 
This allows basic video and audio playback on banan-os!
 2025-12-28 00:12:03 +02:00
Bananymous 6fbf1469aa LibC: define static_assert in assert.h 
This is needed from C11 until C23
 2025-12-28 00:12:03 +02:00
Bananymous 280d3fd919 LibC: Fix assert.h include guard 2025-12-28 00:12:03 +02:00
Bananymous 40ce95b87f LibC: Add definition for TCP_MAXSEG 
This is not implemented yet
 2025-12-27 23:37:03 +02:00
Bananymous e7d644b874 AudioServer: Fix rounding the number of samples when resampling 
If client tried to play a single sample at lower frequency as the
kenrel, audio server would never play it leading to the client hanging

This makes calculations round the number of samples always up to fix
this
 2025-12-18 16:05:28 +02:00
Bananymous c64159d5c3 AudioServer: Fix resampling math 
This caused resampled audio to freeze the whole audio system after few
minutes of playing (like doom)
 2025-12-18 14:59:55 +02:00
Bananymous e2ccc3026f BAN: Remove unnecessary c++ header inclusion 2025-12-16 16:44:42 +02:00
Bananymous 2af6066ee3 LibC: Fix sysconf(_SC_OPEN_MAX) 2025-12-16 05:20:18 +02:00
Bananymous fc16b5331c LibC: Fix backtrace compilation 
Also dump backtrace on SIGABRT
 2025-12-16 05:20:00 +02:00
Bananymous b2723a0c5f aoc2025: Implement day12 solution 2025-12-15 19:06:17 +02:00
Bananymous 01042a24f0 aoc2025: Implement day11 solution 2025-12-15 17:57:45 +02:00
Bananymous f9643b3881 aoc2025: Implement day10 solution 2025-12-15 14:42:03 +02:00
Bananymous d2d18bea5d aoc2025: Implement day9 solution 2025-12-13 03:09:15 +02:00
Bananymous 87e595b83e aoc2025: Implement day8 solution 2025-12-12 22:37:03 +02:00
Bananymous 08031b1227 aoc2025: Implement day7 solution 2025-12-12 21:15:22 +02:00
Bananymous 9a87c1f734 aoc2025: Implement day6 solution 2025-12-12 20:17:12 +02:00
Bananymous edeb667ead aoc2025: Implement day5 solution 2025-12-12 06:30:03 +02:00
Bananymous db2aa495b8 aoc2025: Implement day4 solution 2025-12-12 06:08:00 +02:00
Bananymous ddfb591094 aoc2025: Implement day3 solution 2025-12-12 04:34:40 +02:00
Bananymous e8f1ba3722 aoc2025: Implement day2 solution 2025-12-12 02:49:33 +02:00
Bananymous 19c4f34ccb aoc2025: Implement day1 solution 2025-12-12 02:49:10 +02:00
Bananymous 5d9e9c021a aoc2025: Prepare programming environment 2025-12-12 02:48:40 +02:00
Bananymous 6a924db68c Kernel: Implement FIONREAD for tty and pty 2025-11-24 18:15:10 +02:00
Bananymous 9d0990e5e8 Kernel: Implement /proc/<n>/fd 2025-11-24 00:19:51 +02:00
Bananymous 3207f5d61f Kernel: Fix possible page fault on file lookup 2025-11-23 19:49:07 +02:00
Bananymous c72b351bba LibC: Implement glob{,free} 2025-11-23 05:33:44 +02:00
Bananymous 1f9b296ae7 cp: Add -r/--recursive flag 2025-11-23 02:25:05 +02:00
Bananymous e3e2e7b4df userspace: Implement mv utility 2025-11-23 02:24:52 +02:00
Bananymous 4ec8f4a4bf Kernel/LibC: Implement rename{,at} 2025-11-22 23:55:10 +02:00
Bananymous 05d59a05df Kernel: Remove obsolete kprint 
This hasn't been in use in 3 years :)
 2025-11-22 06:21:50 +02:00
Bananymous 11ccbe6506 ports/SDL2: Add clipboard support 2025-11-22 01:24:06 +02:00
Bananymous 673711a246 ports/mesa: Require llvm 
I dont't really even want to suppot softpipe as that is so slow
 2025-11-22 00:40:14 +02:00
Bananymous fff5139d80 Kernel: Add /proc/<n>/cwd 
Also update /proc/<n>/* permissions to match what linux does :D
 2025-11-18 05:40:36 +02:00
Bananymous 812e70c626 ports: Add zsh port 2025-11-18 05:40:36 +02:00
Bananymous db7ffcf9d5 Kernel/Terminal: Add support for bracketed paste mode 
This gets rid of annoying warnings when running some programs like bash
 2025-11-18 05:40:36 +02:00
Bananymous 8f6cb9c057 Terminal: Add selection and clipboard support 
text can now be copied with ctrl+shift+c and pasted with ctrl+shift+v
 2025-11-18 05:40:36 +02:00
Bananymous 291f298d19 userspace: Implement LibClipboard and ClipboardServer 
programs can now connect to the clipboard server using libclipboard and
get and set the clipboard of the current user
 2025-11-18 05:40:36 +02:00
Bananymous d60f12d3b8 Kernel: Add support for SCM_CREDENTIALS and fix recvmsg 
recvmsg was broken when receiving into more than a single iovec
 2025-11-18 05:40:36 +02:00
Bananymous b8a2573bb4 userspace: Implement ImageViewer utility 
This supports viewing images and doing basic zooming and panning
 2025-11-17 20:58:12 +02:00
Bananymous 7ce8e610f5 stat: Fix handling of symlinks 2025-11-17 05:26:07 +02:00
Bananymous 839b9c8f07 Kernel: Check parent's sticky bit in unlink 2025-11-17 05:26:07 +02:00
Bananymous db20801521 Shell: Add exec builtin 2025-11-17 05:26:07 +02:00
Bananymous 160a9278c9 LibC: Fix RTLD_* definitions 2025-11-17 05:26:07 +02:00