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1777 Commits

Author SHA1 Message Date
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 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 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 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 bd426199f8 Kernel: Remove unused (and broken) code from signal trampoline 2025-12-28 03:53:38 +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 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 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 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 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 839b9c8f07 Kernel: Check parent's sticky bit in unlink 2025-11-17 05:26:07 +02:00
Bananymous f166cb09ec Kernel: Fail xHCI initialization if page size != 4096 
Also zero out scratchapd buffers as the spec says
 2025-11-17 05:26:07 +02:00
Bananymous dd636ffcb2 Kernel: Add support for SA_SIGINFO 2025-11-17 05:26:07 +02:00
Bananymous dc2a455395 Kernel: Optimize processes' memory management 
Memory regions are now stored in a sorted array. This allows O(nlogn)
lookup for address validation instead of the old linear lookup.

Now inserting new regions is also O(nlogn) instead of the old constant
time, but lookups are **much** more frequent
 2025-11-17 05:26:07 +02:00
Bananymous c700d9f714 Kernel: Implement connect for UDP socket 2025-11-17 05:26:07 +02:00
Bananymous 59cfc339b0 Kernel: Ignore MSG_NOSIGNAL and invalid flags 2025-11-17 05:26:07 +02:00
Bananymous f3beee9874 Kernel: Cleanup userspace pointer validation 2025-11-17 02:33:00 +02:00
Bananymous 35e063bdaf Kernel: Dump r8-r15 on x86_64 exceptions 2025-11-17 02:33:00 +02:00
Bananymous 09175d1799 Kernel: Fix 32 bit target 
Rewrite some assembly and add some required casts
 2025-11-17 02:33:00 +02:00
Bananymous bb86520094 Kernel: Set message flags in UDP and TCP recvmsg 2025-11-13 04:20:53 +02:00
Bananymous 89c0ff1a9d Kernel/LibC: Replace SYS_{GET,SET}_TLS with SYS_{SET,GET}_{FS,GS}BASE 
This allows userspace to use both registers
 2025-11-13 04:20:53 +02:00
Bananymous 9537922acc Kernel: Implement proper memory region splitting 
Memory regions are now splitted when they get munmapped, mprotected, or
mmapped with MAP_FIXED. This is used by couple of ports, and without
this we were just leaking up memory or straight up crashing programs.
 2025-11-13 04:20:53 +02:00
Bananymous a39aa73e21 Kernel: Allow munmap on non-page aligned address 2025-11-12 00:06:36 +02:00
Bananymous f1d12c330e Kernel/LibC: Implement MMAP_FIXED_NOREPLACE 
This is a handy thing from linux

Also fix MMAP_FIXED validation and error reporting
 2025-11-12 00:06:36 +02:00
Bananymous 7b580b8f56 Kernel: Implement fd passing with SCM_RIGTHS 2025-11-12 00:06:36 +02:00
Bananymous 1903c5e0c6 Kernel: Use user given address hint in mmap if possible 2025-11-10 01:40:33 +02:00
Bananymous 72982e3c2b Kernel/LibC: Take fcntl extra field as uintptr_t 
This allows passing pointers to fcntl
 2025-11-10 01:40:33 +02:00
Bananymous 04d24bce70 Kernel/LibC: Implement {recv,send}msg as syscalls 
This also removes the now old recvfrom and sendto syscalls. These are
now implemented as wrappers around recvmsg and sendmsg.

Also replace unnecessary spinlocks from unix socket with mutexes
 2025-11-10 01:40:33 +02:00
Bananymous 979059c804 Kernel: Implement ext2 symlinks with >= 60 byte target 2025-11-06 17:21:36 +02:00
Bananymous 7367672570 Kernel: Default initialize flock as unlocked 
This caused unlocked flock's to hang on lock
 2025-11-02 21:10:13 +02:00
Bananymous b822d42889 LibC: Define ESHUTDOWN 
This is not used but some ports expect it to exist
 2025-11-02 21:09:48 +02:00
Bananymous 5f61581e1d Kernel: Show QR code with panic logs on kernel panic 
This makes debugging on real hardware easier!
 2025-10-28 05:50:19 +02:00
Bananymous f519cb2cc0 Kernel: Expose boot framebuffer device 2025-10-28 05:50:19 +02:00
Bananymous da39e98adf Kernel: Make F11 drop disk cache 
This can be useful to detect memory leaks or something
 2025-08-31 00:36:59 +03:00
Bananymous 791a541381 Kernel: Implement process stopping and continuing 2025-08-31 00:34:52 +03:00
Bananymous 56684e753b Kernel: Fix PS/2 legacy controller detection 
This was wrong for devices without FADT or pre revision 3 FADT
 2025-08-29 21:07:33 +03:00