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1742 Commits

Author SHA1 Message Date
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
Bananymous c7298edf65 Kernel: Clone executable path on fork 
Before this forked processes had empty executables
 2025-08-29 01:41:18 +03:00
Bananymous 30215963b2 Kernel: Fix /proc/<pid>/exe permissions 2025-08-29 01:40:56 +03:00
Bananymous 391fc0c4c2 Kernel: Don't crash if Ext2 filesystem doing too many fileops 
I had a hardlimit of 10 block buffers and if they ran out, the kernel
would crash. this patchs increases the number of buffers to 16 and
removes the crash condition when they run out :D
 2025-08-28 15:55:40 +03:00
Bananymous 948ef2c820 Kernel: Fix race condition when destroying threads 2025-08-28 15:55:40 +03:00
Bananymous c1b6b6b76a Kernel: Fix string validation in unlink syscall 2025-08-28 15:55:40 +03:00
Bananymous a8bb07052e Kernel: Rewrite SMP message code 
Remove locks and map smp buffer as uncached
 2025-08-28 15:55:40 +03:00
Bananymous 6976a2dae7 Kernel: Add hardlink support to USTAR 
Also handle file types L and K for long file names and link names
 2025-08-28 15:55:40 +03:00
Bananymous 51cd951b4c Kernel: Add hardlink support to tmpfs 2025-08-28 15:55:40 +03:00
Bananymous 16a5a234c1 Kernel: Cleanup hardlink creation 2025-08-28 15:55:40 +03:00
Bananymous aaa8760d09 Kernel: Don't wait for ps2 timeout when flushing buffer 
This speeds up boot time by a second :dd:
 2025-08-28 15:55:40 +03:00
Bananymous cea19ecc31 Kernel: Fix possible crash during exec 2025-08-28 15:55:40 +03:00
Bananymous 706cfeb443 Kernel: Allow file backed mapping be larger than inode size 
This is only allowed if the mapping does **not** exceed a page boundary.
Some port was doing an exactly two-page-mapping on a file that was one
and a half page long
 2025-08-28 15:55:40 +03:00
Bananymous d9c91589f0 Kernel: Don't limit /tmp max size 2025-08-28 15:55:40 +03:00
Bananymous abbe7b79d6 Kernel: Add /proc/<pid>/exe 2025-08-28 15:55:40 +03:00
Bananymous e4abe75043 Kernel: Add /proc/self 2025-08-28 15:55:40 +03:00
Bananymous 10bd24e585 Kernel: Fix signal delivery without an alternate stack 
I had only tested that sigaltstack worked, so I didn't notice my normal
signals broke :D
 2025-08-25 22:16:23 +03:00
Bananymous f926e599fa Kernel: Zero initialize Processors 
This moves processor array to .bss reducing data size by 8192 bytes :)

This needed GCC updated to 15.2.0 because of an internal compiler error
I found :)
 2025-08-25 18:29:14 +03:00
Bananymous a4698f0bde Kernel: Fix IOAPIC max redirection entry fetching 
Also max redirection entry is an index, not count so comparisons should
check for equality :)
 2025-08-25 17:15:55 +03:00
Bananymous 9a6eae69ba Kernel: Replace all occurances of BSB with BSP 2025-08-25 17:11:32 +03:00
Bananymous 2f3fd6867d Kernel: Add VERY HACKY MAP_FIXED fix 
This definitely will break stuff but I don't think anything depends on
this (except maybe dynamic loader)

This WILL get fixed soon (I hope :D)
 2025-08-21 03:11:16 +03:00
Bananymous 350ae90bb6 Kernel: Make all futexes shared 
Some stuff tries to use shared futexes so make them all shared. Private
futexes would be faster as they are process specific but supporting both
would need some reworks
 2025-08-21 02:56:17 +03:00
Bananymous 0dfe0b7023 Kernel/LibC: Implement sigaltstack 2025-08-21 02:52:49 +03:00
Bananymous def236b7cd Kernel/LibC: Implement sigwait 2025-08-20 20:16:19 +03:00
Bananymous 247743ef9c Kernel/LibC: Implement sigsuspend 2025-08-20 20:14:54 +03:00
Bananymous 49122cf729 Kernel: Allow adding signals to thread that are blocked 2025-08-20 18:35:18 +03:00
Bananymous 34bdcb12e5 Kernel: Fix termios and enter key handling 
Enter key now produces expected \r which gets converted to \n by default
by the ICRNL input flag.

Also input flags are now handled always, not just when ICANON is set.
I don't know why I though ICANON should disable input handling
 2025-08-19 16:23:30 +03:00
Bananymous 6560f229b1 Kernel: Fix PS/2 scancode set 3 numpad keys 2025-08-19 16:23:30 +03:00
Bananymous 32d7f429f8 Kernel: Fix default ignored signals 
SIGWINCH and SIGCANCEL ended up interrupting functions even when they
were marked as SIG_DFL. Now resizing the userspace terminal emulator
does not get interrupted!
 2025-08-19 16:23:30 +03:00
Bananymous 8b7790ded2 Kernel: Fix userspace pointer checks 
Some syscalls were unconditionally validating optional paramenters which
were allowed to be null pointers
 2025-08-19 16:23:30 +03:00
Bananymous 3e97a82af0 Kernel: Allow getgroups with size 
This can be used to query the number of groups
 2025-08-19 16:23:30 +03:00
Bananymous 0066b20413 Kernel: Fix spinlock leaks with unix sockets 2025-08-19 16:23:30 +03:00
Bananymous 9d6656451a LibC: Make time_t signed integer 
Some port like python3 assumes this is the case
 2025-08-19 16:23:30 +03:00
Bananymous 32f980e259 Kernel: Fix ACPI namespace lookup for multi segment names 2025-08-19 16:23:30 +03:00
Bananymous 0bece8a54c Kernel: Add missing ACPI resource header 2025-08-19 16:23:30 +03:00
Bananymous b6793cc6f2 Kernel: Add AML ConcatResOp 2025-08-15 18:54:17 +03:00