Bananymous/banan-os
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Author SHA1 Message Date
Bananymous ae24fb1dd0 Kernel: Use BAN::Math::{ctz,popcount} instead of builtins 2026-08-22 14:39:42 +03:00
Bananymous fe64639842 Kernel/LibC: Make ino_t 32 bit integer 
32 bit target could not use atomic ino_t when it was 32 bit. There isn't
really any reason to have 64 bit ino_t as there aren't really
filesystems with that large numbers :D
 2026-08-22 14:39:42 +03:00
Bananymous db9beac740 BAN: Add math functions for clz, ctz, popcount 2026-08-22 14:39:42 +03:00
Bananymous 471b6a6c40 Kernel: Replace __atomic builtins with BAN::atomic wrappers 2026-08-22 13:28:56 +03:00
Bananymous fe2b130915 Kernel: Fix __cxa_guard_* implementations 2026-08-22 13:27:25 +03:00
Bananymous 67fdd24a19 Kernel: Prefer 32 bit HPET timers on 32 bit target 2026-08-22 13:23:43 +03:00
Bananymous 0d6b32dc3c Kernel: Fix HPET validation 2026-08-22 13:23:43 +03:00
Bananymous ffceb300db Kernel: Cleanup xHCI debug printing 2026-08-22 11:57:19 +03:00
Bananymous b818e2764c Kernel: Only update USB max packet size for FS devices 2026-08-22 11:57:19 +03:00
Bananymous 4b7d90f939 Kernel: Ignore SET_PROTOCOL(1) errors on HID devices 
One of my USB mice is a boot protocol device but stalls on SET_PROTOCOL
request. USB HID is supposed to be in report protocol on initialization
so an error *should* not be an issue
 2026-08-22 11:57:19 +03:00
Bananymous 6a7c1c1281 Kernel: Reset xHCI control endpoint on command stall 2026-08-22 11:57:19 +03:00
Bananymous fdbfda189f Kernel: Map non-us hashtag to backspace on HID keyboards 
Apparently one of my laptops advertise this key as non-us hashtag
instead of backslash while the key layout is the exact same as my other
keyboards :D
 2026-08-22 11:57:19 +03:00
Bananymous e496d889ba Kernel: Deduplicate USB keyboard input code 2026-08-22 11:57:19 +03:00
Bananymous 9967878886 Kernel: Handle array usages for consumer page 
Also map consumer page mute button in variable case
 2026-08-22 11:57:19 +03:00
Bananymous 51badd75f0 Kernel: Move HID led handling from keyboard to usb device 
Apparently some keyboards can have led control on another interface from
the one where input is received. Now led mask is global to the usb
devices instead of per keyboard instance.
 2026-08-22 11:57:19 +03:00
Bananymous f6e841e623 Kernel: Don't reset iHDA stream after running out of samples 
We can just stop the stream :D This also broke restarting the stream on
some hardware when ig you need to reprogram the DAC after resetting
stream(?)
 2026-08-22 11:57:19 +03:00
Bananymous 28bd9cf353 Kernel: Fix PS/2 scancode set detection logic 
If we cannot determine current scancode set because either the keyboard
does not respond or responds with bogus value, assume scancode set 1 and
mark the scancode set as uncertain. If we receive the byte 0xF0 while
having the uncertain flag set, swap to scancode set 2. 0xF0 is unused in
scancode set 1 but indicates key release in scancode set 2, so it will
be sent after every key press.
 2026-08-22 11:57:19 +03:00
Bananymous 892829adeb Kernel: Fix PS/2 device detection 
If we cannot find PS/2 devices in the acpi namespace check 8042 bit in
FADT. Also if user explicitly specified PS/2 scancode set, assume that
we do have a PS/2 controller even when other detection mechanisms fail
 2026-08-22 11:57:19 +03:00
Bananymous 82fd57af9e Kernel: Use local labels in assembly 2026-08-22 11:57:19 +03:00
Bananymous 2f25bfb2db Kernel: Use min heap for scheduler block list 
This makes insertion to block list O(log n) instead of O(n) when
blocking with wake time. This is more heavy and currently slower than
the previous implementation, but that is just because we don't really
have too many threads running at any given time. This will be more
scalable in the future and even allows implementing priorities if I ever
wish so
 2026-08-19 21:32:36 +03:00
Bananymous 7f12e5aaf3 Kernel: Report actual hw volume from AC97 2026-08-19 21:32:36 +03:00
Bananymous 78e40ca353 AudioServer: Add software volume control 2026-08-19 21:32:36 +03:00
Bananymous 1231b16cc3 Kernel: Add mixer support to IHDA 
This has not been tested as I don't have any hardware with mixers on
output paths :P
 2026-08-19 21:32:36 +03:00
Bananymous 6cd3638a85 Kernel: Send set channel count on IHDA 2026-08-19 21:32:36 +03:00
Bananymous 4aead25970 Kernel: Cleanup IHDA volume control and report the actual volume 2026-08-19 21:32:36 +03:00
Bananymous 36b34b0df0 Kernel: Don't store copy of palette in virtual TTY 
It can be just queried from the terminal driver
 2026-08-19 21:32:36 +03:00
Bananymous bf0bd19289 Kernel: Refactor includes to reduce include dependencies 
Now modifying Scheduler.h or Thread.h doesnt trigger practically a full
kernel rebuild. This required moving Mutex and RWLock of of line but
that should be fine :^)
 2026-08-19 21:32:36 +03:00
Bananymous 8cd9e6dfa8 Kernel: Keep track of thread user and system time separately 2026-08-19 21:32:36 +03:00
Bananymous f0a114f4e5 Kernel: Fix shm object freeing and track lpid 
I was deleting based on the key instead of the id which of course does
not work :D
 2026-08-19 21:32:36 +03:00
Bananymous ac99bf128b LibAudio: Rename AudioLoader -> AudioStream 2026-08-19 21:32:36 +03:00
Bananymous 2c66de888f BuildSystem: Add option to generate an ISO file 
This creates ISO file with compressed initrd and grub files that can be
live booted easily
 2026-08-19 21:32:36 +03:00
Bananymous 8f4db57ed8 WindowServer: Mark old window area as damaged on resize 2026-08-17 04:58:35 +03:00
Bananymous b6f922895f AudioServer: Queue more than 4k bytes per write 
Before this I was writing audio data to kernel in ~20 ms chuncks. This
feels like way too many syscalls, so now we allow sending upto 1 second
per syscall :D
 2026-08-17 04:44:15 +03:00
Bananymous 7aa8eb1778 Kernel: Use 64 bit write on HPET on x86_64 2026-08-17 04:33:20 +03:00
Bananymous 1128e440d2 Kernel: Fix typos and fix power button status clear 2026-08-17 04:32:26 +03:00
Bananymous ac052fe1c1 Kernel: Program missing entries from redirection entries 
This wasnt an issue but could be in the future
 2026-08-17 04:23:04 +03:00
Bananymous c915c064e8 BuildSystem: Compile cross gcc with optimizations 
I guess because I now pass explicit CXXFLAGS, gcc did not add the
default optimization flags
 2026-08-11 18:26:06 +03:00
Bananymous 895c586736 LibC: Add uchar.h 
This was added in POSIX issue 8 and some ports end up with very weird
compile errors if this does not exist :D
 2026-08-08 05:43:34 +03:00
Bananymous 04b8f9d7a3 LibC: Fix stdc++ requirement in getpagesize 2026-08-08 03:44:27 +03:00
Bananymous 6e99eed541 WindowServer: Cleanup damaged areas 2026-08-08 01:53:07 +03:00
Bananymous fc40820150 Kernel/Userspace: Replace my custom SHM system with SysV shm 
This allows xbanan to use shm!
 2026-08-08 01:52:12 +03:00
Bananymous 2c4fee4a82 Kernel: Expose Inode::can_access as static member 2026-08-08 01:41:48 +03:00
Bananymous 2be915a1df ports: Update xbanan 2026-08-08 01:30:09 +03:00
Bananymous 1a8351eae0 LibC: Cache page size in getpagesize 2026-08-05 05:41:31 +03:00
Bananymous 328771ae29 Kernel: Fix AC97 issues 
Set last entry bit on the last entry :D

Verify that allocated DMA buffer fits in a 32 bit integer
 2026-07-20 11:30:06 +03:00
Bananymous 0b53fba991 Kernel: Fix PCI PIN interrupt allocation and handling 
We now use the correct PIN interrupt from the interrupt line field
instead of writing to it, this had no effect :D

PIN interrupts are now mapped as shared and level triggered, this
properly allows PIN interrupt sharing with multiple devices
 2026-07-20 10:45:32 +03:00
Bananymous 0d390e2246 Kernel: Send EOI after handling the interrupt 
There is no need to send it prior to handling. This required us to not
yield from HPET/PIT irq so that the EOI actually gets sent
 2026-07-20 10:43:50 +03:00
Bananymous a3b7a758eb Kernel: Allow allocating shared interrupts and setting trigger mode 2026-07-20 10:28:18 +03:00
Bananymous d46d7a5123 Kernel: Cleanup entering acpi mode 
There is no need to pass the current mode as an argument as ACPI has
access to that info either way.

Only route INTx objects when using ACPI, they won't be used otherwise
 2026-07-20 09:02:18 +03:00
Bananymous b611c3fe48 LibC: Support in-place realloc for mmap backed allocations 
When shrinking a mmap based allocation, we can just unmap the trailing
pages that will no longer be needed. When extending an allocation we try
to MMAP_FIXED_NOREPLACE the need extra data to avoid memcpy between old
and new allocation. I'm not sure if the extension logic is really worth
it but it is just 15 lines of code to avoid possibly very large memcpys.
 2026-07-20 06:58:30 +03:00
Bananymous 8c6e402ee8 LibC: page align mmap backed malloc sizes 
This will make reallocations cleaner
 2026-07-20 06:58:30 +03:00
Bananymous bd5be982e9 LibC: Don't memset 0 mmap'd callocs 
There is no reason to page everything in and the kernel already
guarantees that the memory is zeroed in mmap
 2026-07-20 06:58:30 +03:00
Bananymous 33f941f2fd LibC: Unmap unused pages in aligned mallocs 2026-07-20 06:58:30 +03:00
Bananymous 8368dec30b LibC: Fix posix_memalign return value 
I was returning -1 with errno instead of the error code :P
 2026-07-20 06:58:30 +03:00
Bananymous 7f25350c62 LibC: Fix malloc mmap byte tracking 
I was incrementing instead of decrementing when freeing mmap allocs
 2026-07-20 06:58:30 +03:00
Bananymous 64523b6c70 LibC: Fix futex return value handling 2026-07-20 06:58:30 +03:00
Bananymous a9cf0134b7 Kernel: Don't block thread if the wake time has already passed 2026-07-20 06:58:30 +03:00
Bananymous 2e8239fefa Kernel: Fix thread block timeout 
I was comparint ms against ns making timeouts practically never wake up
:)
 2026-07-20 06:58:30 +03:00
Bananymous f2bf406db7 ports: Add ccleste port 2026-07-20 06:58:30 +03:00
Bananymous 63a8f40e67 ports/quake2: Clenaup build script and patches 2026-07-20 06:58:30 +03:00
Bananymous 2ddee7016e Kernel: Fix another scheduler bug :^) 2026-07-20 06:58:30 +03:00
Bananymous bc622c8b51 LibC: Fix pthread default guard size and name 2026-07-20 06:58:30 +03:00
Bananymous 6ebd3a8aca Kernel: Rewrite the AHCI driver 
There was a lot of stuff wrong with this driver and it was only getting
speeds of ~2.5 MB/s. Now 4K blocks get ~17 MB/s which is not good but
definitely better. I'm pretty sure the issue is qemu's emulation as 85%
of time is spent between sending the command and it to complete.
Large blocks are now supported too, qemu with block size 1M gets around
600 MB/s read speeds.
 2026-07-20 06:58:30 +03:00
Bananymous 96e5779182 Kernel: Fix out of bounds reads on storage devices 2026-07-20 04:07:23 +03:00
Bananymous 02f05436fc Kernel: Fix zero sized reads from a partition 2026-07-20 04:07:23 +03:00
Bananymous 51251e492e Kernel: Fix fallback PS/2 interrupt numbers 
I haven't used the fallbacks in so long that I didn't realize they were
wrong :D
 2026-07-20 04:07:23 +03:00
Bananymous 20e36125c8 Kernel: Cleanup very old AHCI code 2026-07-20 04:07:23 +03:00
Bananymous 19c228362b Kernel: Make ext2 block buffers page aligned 2026-07-20 04:07:23 +03:00
Bananymous cf9a495f1d ports: Add ClassiCube port 2026-07-20 04:07:23 +03:00
Bananymous 5329ec5912 Kernel: Rework spinlock usage when blocking the current thread 
The old SpinLockAsMutex was pretty confusing first of all. It also was
causing the issue thats been around for maybe a year now which is the
only consistently happening kernel panic. I've been pretty confused
about this and finally figured out what was causing this.

The main issue was that we were accidentally enabling interrupts when
blocking a thread that passed SpinLockAsMutex from normally interrupt
enabled context. This led to receiving IPI for thread unblock while
we were actively blocking the thread. I'm very suprized this had't
caused any more serious issues than occasional kernel panics :^)
 2026-07-20 04:07:23 +03:00
Bananymous edc95e1c09 Kernel: Disable SMP message handling while blocking a thread 
There were some race conditions on a thread getting unblocked before
being moved to the block queue
 2026-07-20 04:07:23 +03:00
Bananymous 46e2d665e9 LibC: Make pthread_once block with a futex instead of yielding 2026-07-20 04:07:23 +03:00
Bananymous 0242a4f968 DynamicLoader: Fix master and initial TLS setup 2026-07-20 04:07:23 +03:00
Bananymous 390a7674b1 LibC: Fix uthread deallocation 
Update dtv[0] to the max loadad module when loading dynamic modules

Free uthread if stack allocation or mprotect fails on pthread_create

Don't unmap the currently used stack when detached thread exits
 2026-07-20 04:07:23 +03:00
Bananymous f96f2b4cac ports: Split dejavu fonts to their own port 2026-07-20 04:07:23 +03:00
Bananymous 51b9dcebbc Kernel: Support FIONBIO ioctl 2026-07-20 04:07:23 +03:00
Bananymous 583c2437b4 LibC: Don't munmap nullptr with 0 size in malloc 2026-07-20 04:07:23 +03:00
Bananymous efb25e5666 BAN/LibC: Move ldexp, scalbn to libc 
They are now implemented with float decompostion to modify the exponent
bits directly
 2026-07-20 04:07:23 +03:00
Bananymous f0e95ffe48 LibC: Make qsort_swap static 
There is no need to export this
 2026-07-20 04:07:23 +03:00
Bananymous 511ab7e99c LibC: Define locale_t as an poiter 
A lot of ports seem to depend on this casting nullptr into locale_t
 2026-07-20 04:07:23 +03:00
Bananymous 4df58c5155 Kernel: Check for overflow in seek syscall 2026-07-20 04:07:23 +03:00
Bananymous f6e27e5f05 toolchain: Update gcc 15.2.0->15.3.0 
There was an ICE bug in gcc 15.2.x when compiling webkitgtk
 2026-07-20 04:07:23 +03:00
Bananymous 87006e277f LibC: Define winsize in both termios.h and sys/ioctl.h 2026-07-20 04:07:23 +03:00
Bananymous 2c340c5532 BAN: Implement more numerically stable hypot 2026-07-20 04:07:23 +03:00
Bananymous f6b91578ae LibC: Enable backtrace dumping by default 
I'm not sure why I had turned this off
 2026-07-20 04:07:23 +03:00
Bananymous 73a95bd725 ports/lynx: Update 2.9.2->2.9.3 and fix compilation 2026-07-20 04:07:23 +03:00
Bananymous 130c4f681c ports/ncurses: Enable widec support and disable test compilation 
There is one test with buggy macros that does not compile and im not
feeling like making a patch for it now :^)
 2026-07-20 04:07:23 +03:00
Bananymous e03a26cf01 LibC: Don't ASSERT in times 
Return the current process CPU time as user time. We don't have a way to
get system/user time separation or CPU times of child processes
 2026-07-20 04:07:23 +03:00
Bananymous 2a3eca5b36 LibC: Implement POSIX binary search trees 
I used RB tree for this. The implementation is based on the code on
wikipedia about RB trees.
 2026-07-20 04:07:23 +03:00
Bananymous 658e74b507 bootloader: Check that VESA mode is linear 
I don't think there are any graphical non-linear framebuffers but good
to be sure
 2026-07-20 04:07:23 +03:00
Bananymous 9bdf60bb88 bootloader: Fix stack corruption when pressing non ascii keys 2026-07-20 04:07:23 +03:00
Bananymous 3148c28c3d userspace: Add basic find utility 
This is mostly working but is missing -exec and -ok support. It can
search files though :^)
 2026-07-08 21:48:14 +03:00
Bananymous fa89645542 userspace: Implement simple sort utility 
This supports most(?) options except for the separate fields. Should
work for simple use cases

Also merge is currently just a wrapper around sort so its not optimized
:D
 2026-07-08 21:48:14 +03:00
Bananymous ddf8fbc085 BuildSystem: Use ccache if found 2026-07-08 21:48:14 +03:00
Bananymous ecfd98fad0 bootloader: Don't use random packing in memory map 2026-07-08 21:48:14 +03:00
Bananymous 2e9f7077c9 TaskBar: Fix division by zero error 
If a CPU does not have updated stats to show, just display ??.??%
 2026-07-07 17:50:00 +03:00
Bananymous 132b75c2d0 ports/bash: Fix compilation with moved winsize 2026-07-07 16:59:20 +03:00
Bananymous bc8f0f373e ports: Add tar port 2026-07-07 16:59:20 +03:00
Bananymous e352bfbb23 mkdir: Don't fail the target exists and -p was given 2026-07-07 16:59:20 +03:00
Bananymous 3ee6240806 Kernel: Prioritize EEXISTS sys_mkdir 
This fixes `mkdir -p ...` failing to create existing parents which are
not writable
 2026-07-07 16:59:20 +03:00