Bananymous/banan-os
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Author SHA1 Message Date
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
Bananymous 304f94f3b1 LibC: Implement __fpending 
Some gnu programs want this and I don't want to make FILE non-opaque
 2026-07-07 16:59:20 +03:00
Bananymous 89fa957297 BuildSystem: Fix keymap in base sysroot 2026-07-07 16:59:20 +03:00
Bananymous 7348511ed3 ports/llvm: Add support for pthread_setname_np and cpu count 
Also package the llvm into the format mesa expects. This was kinda
tedious to always do manually
 2026-07-07 10:30:07 +03:00
Bananymous 20392c6cc1 LibC: Add malloc.h with some GNU extension 
This adds `reallocarray`, `malloc_usable_size`, `mallinfo`, `mallinfo2`
 2026-07-07 10:30:07 +03:00
Bananymous 0843b8989d Kernel: Fix timer deadline issues in scheduler 
Don't wake up threads when getting the next timer deadline.
If we are idling this can: remove thread from block list, get the
deadline for the next blocked thread, return to idle thread. This will
end up sleeping until the next wake up condition which in the worst
case would be rebalance, or indefinitely when not running SMP.

Make sure we always set the next timer deadline. I was not doing that if
the timer interrupt did not lead to a yield
 2026-07-07 10:30:07 +03:00
Bananymous 1c8112f1a7 ports: Update xbanan 2026-07-07 05:07:36 +03:00
Bananymous 49662aa994 Kernel: Don't use peridic interrupts for scheduling 
Scheduler will now set a timer interrupt deadline for when it should get
interrupted next. This fixes a big issue I've had for a long time where
sleeping on an idle core would have to wait for the next periodic
interrupt to wake up. This could cause 1 ms sleeps to be close to 10 ms.

This currently only supports lapic timers and will still fallback to
periodic interrupts when running with PIC. I should add deadline support
to PIT/HPET but why would you run with APIC disabled ;)
 2026-07-07 04:53:41 +03:00
Bananymous bcf1c6d110 BAN: Add print formatter for Span 2026-07-07 04:53:41 +03:00
Bananymous b62687f5e7 LibC: Cleanup backtrace code 2026-07-07 04:44:44 +03:00
Bananymous 7b4b5a3440 BAN: Cleanup intro_sort and quick_sort 
Only recurse to the smaller partition. This prevents worst case O(n)
recursion
 2026-07-07 04:43:06 +03:00
Bananymous 896bb05073 LibC: Cleanup qsort implementation 
Remove random template and just make qsort be a wrapper around qsort_r

Recurse only into the smaller partition. This removes the possibility of
O(n) recursion in the worst case

Use insertion sort for ranges shorter than 16 elements.

Split qsort_swap into qsort_swap_fixed and qsort_swap_general
- fixed one handles 1, 2, 4 and 8 byte elements which can be done directly
with mov instructions
- general copies 64 bytes at a time followed by a single copy for the
  rest. the 64 byte chunk loop gets nicely optimized into sse
 2026-07-07 04:39:06 +03:00
Bananymous fc10de7ccb LibC: Implement pause 2026-07-07 04:36:55 +03:00
Bananymous e8a490336c ports: Build release binaries with meson 2026-07-07 04:36:55 +03:00
Bananymous e741ab0fa1 ports: Replace libjpeg with libjpeg turbo 
This is faster and adds some extensions on top of that
 2026-07-07 04:36:55 +03:00
Bananymous 7d7b1f0319 ports: Add libspng port 2026-07-07 04:36:55 +03:00
Bananymous 97d26b5d4e ports: Split mesa into two packages: osmesa, glx 
Now SDL and other stuff that use opengl dont have to pull X11 libraries

We now also compile glx backend with DRI instead of xlib. This allows
building EGL support as well!
 2026-07-07 04:36:55 +03:00
Bananymous e78fcf63b6 ports: Update mesa 25.0.7->26.1.4 
This required bringing back osmesa code from 25.0.7 which was the last
version where it was supported. Seems to work fine though
 2026-07-07 04:36:55 +03:00
Bananymous bfad22211f ports: Add libdrm port 2026-07-07 03:12:39 +03:00
Bananymous 6e2542d896 ports: Add libxshfence port 2026-07-07 03:12:39 +03:00
Bananymous 659bc50aec ports: Update and dont build static freetype 2026-07-07 03:12:39 +03:00
Bananymous f6c5e3e640 ports: Update and dont build static expat 2026-07-07 03:12:39 +03:00
Bananymous 8957408890 ports: Update and dont build static libpng, libjpeg, libtiff 2026-07-07 03:12:39 +03:00
Bananymous db8544065e ports: Don't build static zlib and zstd 2026-07-07 03:12:39 +03:00
Bananymous eee0b7c3ff Kernel: Make ioctl take unsigned long instead of int 
this is what linux does :D

also fix one or two `return ioctl` instead of `return ioctl_impl`
 2026-07-07 03:12:39 +03:00
Bananymous ea4e016b1e DynamicLoader: Fix TLS memory initialization 
I was reading the TLS data before performing relocations so any TLS
variables pointing to relocated objects would not get the correct data
 2026-07-05 13:53:20 +03:00
Bananymous 9fd015a84e ports/tuxracer: Use osmesa as the gl library 2026-07-05 07:38:27 +03:00
Bananymous 090ab99903 ports/glu: Use osmesa as the gl provider 2026-07-05 07:34:22 +03:00
Bananymous 3e16e69602 LibC: Implement qsort_r 
This is not really required by anything but i've seen few ports
optionally use it if available. This was trivial to implement so why not
add it :^)
 2026-07-05 01:55:57 +03:00
Bananymous 58c58bcccf BuildSystem: Add missing pkg-config file and update .gitignore 2026-07-05 00:45:43 +03:00
Bananymous f173b7bccc ports/harfbuzz: Fix infinite circular dependency loop 2026-07-05 00:40:43 +03:00
Bananymous fde0eb0964 ports: Update vim 9.1.1485->9.2.0538 2026-07-05 00:40:43 +03:00
Bananymous 05ee0a7f49 ports: Update ncurses 6.5->6.6 2026-07-05 00:40:43 +03:00
Bananymous a863b2ca13 ports/openssh: Add missing patches 
I just noticed I had some uncommited patches that are required for the
compilation. Also remove the ifaddrs.h fixup as we now support those!
 2026-07-05 00:40:43 +03:00
Bananymous 15f6158cea ports/doom: Update and install to /usr/share/games 2026-07-05 00:24:20 +03:00
Bananymous c7eb2dbdf3 ports: Replace SDL2 with sdl2-compat 
There is no need to keep two SDL versions around
 2026-07-05 00:24:20 +03:00
Bananymous 380b172968 ports: Update butterscotch and use SDL3 2026-07-05 00:00:11 +03:00
Bananymous ae0e79aa01 ports: Update openal-soft 1.24.3->1.25.2 and use SDL3 
No need to use SDL2 anymore :^)
 2026-07-04 23:57:00 +03:00
Bananymous 01f0871a83 ports: Add SDL3 port 
I've been planning on doing this for a long time :D This is mostly based
on the SDL2 backend but there are a bunch of fixes
 2026-07-04 23:55:23 +03:00
Bananymous ac1fafedcc LibC: Cleanup and fix random functions 
I was getting the size of random state incorrectly and ended up with
double the size user gave us leading to OOB access :D

Also remove hardcoded type -> size mappings and just use a looup table
 2026-07-04 23:12:52 +03:00
Bananymous 7a696c4d63 Kenrel: Cleanup locking in close 2026-07-04 19:19:10 +03:00
Bananymous 89d3ee7b92 Kernel: Use per cpu fast page when clearing SMO pages 2026-07-04 19:18:31 +03:00
Bananymous 879783052d Terminal: Use gnu <start> ... <end> syntax in switch cases 2026-07-04 19:17:41 +03:00
Bananymous b480f783ec LibC: Fix regex anchor parsing 2026-07-04 19:17:07 +03:00
Bananymous 2957206718 LibC: Fix and cleanup stdio mode string parsing 
The code is now much cleaner andd we are not as strict with the mode
string. Also add support for new 'e' and 'x' modifiers
 2026-07-04 19:13:26 +03:00
Bananymous a41a3eeb66 LibGUI: Add query keymap request 2026-07-04 19:12:56 +03:00