Bananymous/banan-os
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Author SHA1 Message Date
Bananymous 1e3ca7dc18 Kernel: Fix signal related syscalls 
There were missing locks, out of order sigprocmask, incorrect signal
masking...
 2026-04-05 02:31:30 +03:00
Bananymous 8ca3c5d778 Kernel: Clean up signal handling 
We now appreciate sa_mask and SA_NODEFER and change the signal mask for
the duration of signal handler. This is done by making a sigprocmask
syscall at the end of the signal handler. Back-to-back signals will
still grow stack as original registers are popped AFTER the block mask
is updated. I guess this is why linux has sigreturn(?).
 2026-04-05 02:25:59 +03:00
Bananymous df257755f7 Kernel: If userspace sets fs or gs, dont overwrite it 
Current cpu index is stored at either segment. If userspace sets that
segment, kernel will not overwrite it on every reschedule. This is fine
as long as user program does not use anything that relies on it :)
 2026-04-04 23:48:43 +03:00
Bananymous d7e292a9f8 Kernel: Drop 32 bit userspace stack to 4 MiB 
32 bit userspace only has 256 MiB reserved for stacks, so with 32 MiB
stacks it only allowed total of 7 threads. Now we can have up to 62
threads
 2026-04-04 23:48:43 +03:00
Bananymous 9fce114e8e Kernel: Don't clone entire kernel stack on fork 
We only need to copy area between [ret_sp, stack_end]. This range is
always very small compared to the whole stack (64 KiB).
 2026-04-04 23:48:43 +03:00
Bananymous 9d83424346 Kernel: Remove unnecessary stack pointer loading 
Any time I started a thread I was loading the stack pointer which is
already correctly passed :D
 2026-04-04 23:48:43 +03:00
Bananymous a29681a524 Kernel: Fix signal generation 
We need to have interrupts enabled when signal kills the process as
process does mutex locking. Also signals are now only checked when
returning to userspace in the same place where userspace segments are
loaded.
 2026-04-04 23:48:43 +03:00
Bananymous 47d85eb281 Kernel: Pass the actual vaddr range to reserve pages 2026-04-04 23:48:43 +03:00
Bananymous 85f676c30a DynamicLoader: Calulate max loaded file count based on dtv size 
dtv should be dynamic but i dont care right now :)
 2026-04-04 23:48:43 +03:00
Bananymous 8c5fa1c0b8 DynamicLoader: Fix R_386_PC32 relocation 
I was not accounting elf base with offset
 2026-04-04 23:48:43 +03:00
Bananymous c7690053ae LibC: Don't crash on 32 bit pthread_create 2026-04-04 23:48:43 +03:00
Bananymous 3f55be638d Kernel: Allow reserve_free_page{,s} to fail 
Apparently I was asserting here before :D
 2026-04-04 23:48:43 +03:00
Bananymous 664c824bc0 Kernel: Keep fast page always reserved 
There was a bug where 32 bit target's reserve_free_page was allocating
the fast page address
 2026-04-04 23:48:43 +03:00
Bananymous e239d9ca55 ports/SDL2: Use 48 kHz floats instead of 44.1 kHz PCM16 2026-04-03 16:17:16 +03:00
Bananymous bf1d9662d7 LibAudio: Use floats instead of doubles for samples 2026-04-03 16:15:02 +03:00
Bananymous 675c215e6a Kernel: Add CoW support to MemoryBackedRegion 
This speeds up fork by A LOT. Forking WindowServer took ~90 ms before
this and now its ~5 ms.
 2026-04-03 01:54:59 +03:00
Bananymous c09bca56f9 Kernel: Add fast write perm remove to page tables 2026-04-03 01:54:22 +03:00
Bananymous 7d8f7753d5 Kernel: Cleanup and fix page tables and better TLB shootdown 2026-04-03 01:53:30 +03:00
Bananymous f77aa65dc5 Kernel: Cleanup accessing userspace memory 
Instead of doing page validiation and loading manually we just do simple
memcpy and handle the possible page faults
 2026-04-02 16:36:33 +03:00
Bananymous 9589b5984d Kernel: Move USERSPACE_END to lower half 
This allows calculating distance to USERSPACE_END from lower half
address
 2026-04-02 16:34:47 +03:00
Bananymous 32806a5af3 LibC: Allow "t" in stdio mode 2026-04-02 15:44:50 +03:00
Bananymous 876fbe3d7c LibC: Fix sem_{,timed}wait 2026-04-02 15:43:34 +03:00
Bananymous c1b8f5e475 LibC: Add and cleanup network definitions 2026-04-02 15:42:00 +03:00
Bananymous cf31ea9cbe LibC: Add _SC_PHYS_PAGES and _SC_AVPHYS_PAGES 2026-04-02 15:41:26 +03:00
Bananymous 7e6b8c93b4 LibC: Implement strsep 2026-04-02 15:40:23 +03:00
Bananymous dd2bbe4588 LibC: Implement sched_getcpu 2026-04-02 15:39:36 +03:00
Bananymous e01e35713b LibC: Allow including assert.h multiple times 
Some shit seems to depend on this
 2026-04-02 15:38:06 +03:00
Bananymous 82d5d9ba58 LibC: Write memchr, memcmp and strlen with sse 2026-04-02 15:35:03 +03:00
Bananymous d168492462 WindowServer: bind volume up/down to volume control 2026-04-02 15:24:02 +03:00
Bananymous 6f2e8320a9 TaskBar: Show current volume level 2026-04-02 15:22:42 +03:00
Bananymous bf4831f468 AudioServer: Add support for volume control 2026-04-02 15:21:38 +03:00
Bananymous 5647cf24d2 Kernel: Implement volume control to audio drivers 2026-04-02 15:14:27 +03:00
Bananymous 85f61aded5 BAN: Use builtins for math overflow 2026-04-02 14:49:12 +03:00
Bananymous 21639071c2 kill: Allow killing with process name 2026-04-02 05:02:05 +03:00
Bananymous 68506a789a Kernel: Add support for volume control keys 2026-04-02 05:02:05 +03:00
Bananymous d9ca25b796 LibC: Add FNM_CASEFOLD and FNM_IGNORECASE 
These are part of POSIX issue 8
 2026-03-25 04:27:00 +02:00
Bananymous e9c81477d7 BAN/LibC: Implement remainder 
This is basically just fmod but with fprem1 instead of fprem
 2026-03-25 01:06:45 +02:00
Bananymous 5c20d5e291 Kernel: HDAudio hide unusable pins and cleanup path finding 2026-03-24 01:16:47 +02:00
Bananymous f89d690716 Kernel: HDAudio only probe codecs in STATESTS 
This removes unnecessary probing that lead to timeouts. Also cap codec
address at 14 instead of 15. My test laptop was duplicating codec 0 at
address 15 leading to duplicate devices.
 2026-03-24 00:49:47 +02:00
Bananymous c563efcd1c AudioServer: Query pins of the asked device and not the current one 2026-03-23 22:57:49 +02:00
Bananymous dedeebbfbe Kernel: Use ByteRingBuffer with audio buffers 2026-03-23 22:12:40 +02:00
Bananymous 35e2a70de0 AudioServer: Handle client data before disconnecting clients 2026-03-23 20:41:13 +02:00
Bananymous 81d5c86a7a WindowServer: Automatically launch xbanan if installed 2026-03-23 19:39:08 +02:00
Bananymous db6644bae9 BuildSystem: Set glib-compile- binaries in meson cross file 2026-03-23 19:34:00 +02:00
Bananymous 14f1c1a358 LibC: Implement vsyslog 2026-03-23 19:13:38 +02:00
Bananymous 5be9bc64a2 ports/libxml2: Configure with -shared-libgcc 
otherwise it doesn't seem to find libiconv due to __divdc3
 2026-03-23 19:09:33 +02:00
Bananymous 64d3a5c8b7 ports: Update zlib 1.3.1->1.3.2 
1.3.1 is no longer available at zlib.net
 2026-03-23 18:54:57 +02:00
Bananymous ccb4d13a82 Kernel: Compile EventFD file 2026-03-23 18:25:18 +02:00
Bananymous cbe835a2c8 DynamicLoader: Add missing strlen definition 2026-03-23 18:23:31 +02:00
Bananymous 6a77754adf LibC: Don't link against libstdc++ 
This prevented building the toolchain
 2026-03-23 18:22:42 +02:00