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
Bananymous
809d07546a
Kernel: Remove minimum timeout of 100 ms from epoll
...
This is not actually needed and was just temporary code to make sure i
notified the epoll everywhere
2025-08-15 18:28:11 +03:00
Bananymous
804cbeb1a7
Kernel: Increment kmalloc storage size to 64 MiB
...
I really don't want to do this, but rewriting kmalloc to be dynamic
would require me to rewrite 32 bit paging and I really don't want to.
2025-08-15 17:02:15 +03:00
Bananymous
c07188a60e
Kernel: Look for PS/2 devices in the ACPI namespace
...
This allows finding the PS/2 controller on newer machines that don't
have the 8042 bit set in FADT.
2025-08-15 17:02:15 +03:00
Bananymous
3804d4332b
Kernel: Make _SEG, _BBN and _ADR lookup absolute
2025-08-15 17:02:15 +03:00
Bananymous
064aaef6c3
Kernel: Don't fail on creating reserved opregion
2025-08-15 17:02:15 +03:00
Bananymous
ce262a5d2d
Kernel: Allow ReturnOp in global scope
2025-08-15 17:02:15 +03:00
Bananymous
d128f4d70b
Kernel: Fix AML CreateField debug print
2025-08-15 17:02:15 +03:00
Bananymous
46d1ada708
Kernel: Allow AML package->package conversion
2025-08-15 17:02:15 +03:00
Bananymous
2819e5f647
Kernel: Make _STA and _INI lookup absolute
2025-08-15 17:02:15 +03:00
Bananymous
c2017a5181
Kernel: Allow looking up devices with multiple eisa ids
...
Also match against _CIDs in addition to _HID
2025-08-15 17:02:15 +03:00
Bananymous
58ad839136
Kernel: Add support for ACPI Embedded Controllers
2025-08-15 17:02:15 +03:00
Bananymous
8ed5a71c45
Kernel: Register IDT handlers from a vector
...
This drops code size by a lot :D
2025-08-13 18:27:46 +03:00
Bananymous
ef6ee78fd1
Kernel/LibC: Implement chroot
2025-08-11 14:07:37 +03:00
Bananymous
695262624d
Kernel: Fix potential UB in AML OpRegion initialization
2025-08-11 03:45:38 +03:00
Bananymous
af0bca74e4
Kernel/LibC: Implement {get,set,init}groups
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This allows dropping /etc/group parsing from the kernel :D
2025-08-10 19:57:31 +03:00
Bananymous
f41e254e35
Kernel: Fix dead lock on process exit
2025-08-10 19:57:31 +03:00
Bananymous
7e472a9c1d
Kernel: Fix USB FS device default max packet size
...
Apparently this is a common non spec compliant issue on many
controllers/devices.
thanks @sasdallas
2025-08-10 19:57:31 +03:00
Bananymous
5b587d199e
Kernel/LibC: Implement FIONREAD for tcp and udp sockets
2025-08-10 19:57:31 +03:00
Bananymous
3aa20a3a32
Kernel: Fix ACPI _GPE calling
...
This adds patch adds support for extended GPEs and the second GPE
register block.
2025-08-07 19:35:13 +03:00
Bananymous
de7c3d3d29
Kernel: Don't try to create . in USTAR
...
Our build system adds . entry to the tar archive and it should be
handled as an no-op
2025-08-07 19:35:13 +03:00
Bananymous
3f89df338e
IDT: Remove stack OOB check
...
This makes debugging easier when you can see the actual register values
and what is mapped and where
2025-08-07 19:35:13 +03:00
Bananymous
7ad3f967db
Kernel: Don't stop audio processing after each entry in AC97
2025-08-07 16:43:05 +03:00
Bananymous
d1c814cf9d
Kernel: Optimize consecutive absolute mouse move events
...
This is a hack to make window server usable without kvm :D
2025-08-07 16:43:05 +03:00
Bananymous
72f85dce2b
Kernel: Make userspace stack on-demand allocated
...
Also bump the hardlimit of stack size from 512 KiB->32 MiB. This still
feels quite low but is much better than before :D
2025-08-07 16:43:05 +03:00
Bananymous
f5bbcc017c
Kernel: Only send one smp message when reserving a range
...
This was causing some kernel panic because processors ran out of smp
message storage when reserving large areas.
Also most of the time there is no need to actually send the SMP message.
If process is mapping something to just its own address space, there is
no need for a TLB shootdown. Maybe this should be only limited to kernel
memory and threads across the same process. I'm not sure what the best
approach here and it is better to send too many invalidations that too
few!
2025-08-07 16:43:05 +03:00
Bananymous
647fedfa19
Kernel: Add missing multiboot.h
2025-08-05 17:12:26 +03:00
Bananymous
f27823babe
Kernel: Move stacks to the top of userspace address space
2025-08-05 03:09:24 +03:00
Bananymous
95cfac471a
Kernel: Rename loopback adapter lo0 -> lo
2025-08-05 03:09:24 +03:00
Bananymous
f7c1084c3e
Kernel: Expose boot command line in /proc/cmdline
2025-08-05 03:09:24 +03:00
Bananymous
cf96bb6cc3
Kernel: Add support for multiboot
...
I don't know why I did it but it works now :D
2025-08-05 03:09:24 +03:00
Bananymous
f1369c8fd6
Kernel/LibC: Implement mprotect
...
There may be some race conditions with this but i think this is good
enough to start with
2025-08-05 03:09:24 +03:00
Bananymous
dfdfb7cdaf
Kernel: check all threads in validate_pointer_access
2025-08-05 03:09:24 +03:00
Bananymous
1cc0fb9c01
Kernel: Reschedule if idle after IPI
...
This allows starting thread execution right after thread is received
from load balancing
2025-08-05 03:09:24 +03:00
Bananymous
a51b589bc9
Kernel: Allow any signal flags and support SA_RESETHAND
2025-08-05 03:09:24 +03:00
Bananymous
5940e912b3
Kernel/LibC: Implement simple futex
2025-08-05 03:09:24 +03:00
Bananymous
284c9e5f61
Kernel: Don't kill process if stack pointer is OOB
...
This can be valid if process is using green threads or for some other
reason using its own stack
2025-08-05 03:09:24 +03:00
Bananymous
927fbda1e8
Kernel: Make on-demand paging thread safe
2025-08-05 03:09:24 +03:00
Bananymous
d8a695a88d
Kernel: Don't fail ustar unpack when creation fails
2025-08-05 03:09:24 +03:00
Bananymous
8c29036fbf
Kernel: Fix EAGAIN on hungup pipe
2025-07-31 22:47:40 +03:00
Bananymous
cc04bd0f06
LibC/Kernel: Implement ttyname_r
2025-07-31 22:47:40 +03:00
Bananymous
e72e1e4e43
LibC: Add _SC_NPROCESSORS_{CONF,ONLN)
2025-07-31 22:47:40 +03:00
Bananymous
9b18bda9c8
Kernel: Make epoll always check for HUP and ERR
2025-07-31 22:47:29 +03:00
Bananymous
2c65590134
Kernel: Add support for absolute position mouse
2025-07-19 18:00:39 +03:00
Bananymous
a0d1a9ad67
Kernel: Fix PIT::prescheduler_sleep_ns
...
I don't even know what I was doing here :D
2025-07-19 01:25:46 +03:00
Bananymous
5df6270e32
Kernel: Clobber flags in `rdrand`
2025-07-18 19:36:37 +03:00
Bananymous
7af6e1cd34
Kernel: Ignore HID main item tag 0
...
This for some reason exists in vmware's usb devices
2025-07-18 19:11:12 +03:00
Bananymous
cceb066284
Kernel: Don't use IST on 32 bit target
...
This only exists in 64 bit
2025-07-18 19:10:48 +03:00
Bananymous
7a054787ca
Kernel: Don't print error if `root` is empty
...
This is used when loading filesystem from initrd
2025-07-18 19:09:43 +03:00
Bananymous
d27891c79f
Kernel: Fix correct IOAPIC lookup based on gsi
2025-07-18 19:09:20 +03:00
Bananymous
5874fd640e
Kernel: Fix TmpFS for 32 bit target
...
There was a problem when sizeof(size_t) != sizeof(PageInfo)
2025-07-18 19:07:32 +03:00
Bananymous
e16fb6a8e9
Kernel: Don't validate allowed null pointers on syscalls
2025-07-17 22:14:04 +03:00
Bananymous
d5301508ec
Kernel: Increase kernel thread stack size
...
HACK HACK HACK
This is just to make banan-os boot on one razer laptop where AML
triggers a stack overflow :)
2025-07-17 21:21:14 +03:00
Bananymous
793cca423b
Kernel: Fix system timer disabling
...
I was actually not disabling system timer (HPET, PIT) when using lapic
timers for scheduling. This made BSB get too many timer interrupts :D
2025-07-16 20:02:04 +03:00
Bananymous
3960687f9d
Kernel: Parse PCIConfig opregion address on read/write
...
I was testing on some hardware and _ADR does not have to exist in the
namespace when opregion is parsed :)
2025-07-16 15:34:36 +03:00
Bananymous
3ec7aad432
Kernel: Increase PS/2 timeout and detect more keyboards
...
I was testing on a old T61
2025-07-16 15:29:27 +03:00
Bananymous
8a663cb94f
Kernel: Implement basic AC97 driver
2025-07-15 14:17:49 +03:00
Bananymous
674e194a91
Kernel: Don't fail PCI interrupt allocation with PCIe and no PCI
2025-07-15 14:17:49 +03:00
Bananymous
c57f0abb56
BuildSystem: Order source list alphabetically
2025-07-15 14:17:49 +03:00
Bananymous
995dfa1455
Kernel: Fix AML PCIConfig OpRegion accesses
...
Apparently I'm not supposted to calculate device/function from the
offset, but parse them from the acpi namespace :)
This allows PCI PIN interrupt routing actually work
2025-07-04 13:21:02 +03:00
Bananymous
544c8dbc13
Kernel: Optimize AML interpreter stack usage
...
There is a very hacky no-inline hack that I am not proud of but it drops
the stack usage of few functions A LOT.
Previously Virtual Box could not boot with our 8 page stack, but these
changes allow it to boot on 5!
2025-07-03 00:49:23 +03:00
Bananymous
8da4f80453
Kernel: Add custom stack to double fault handler
...
This prevents triple faults!
2025-07-02 23:14:52 +03:00
Bananymous
6084aae603
Kernel: Add guard pages to kernel and userspace stacks
2025-07-02 23:12:36 +03:00
Bananymous
e1319a06f2
Kernel: Remove accidentally commited debug prints
2025-07-02 23:09:57 +03:00
Bananymous
51fd7a607d
Kernel: Fix IDE controller waiting
...
We did not correctly wait until controller is ready to receive data on
write command. Also remove possible kernel panic if controller sends
unexpected interrupts
2025-07-02 22:04:41 +03:00
Bananymous
8a0269d29e
Kernel: Remove kernel processes
...
Kernel can just use raw threads, pretty muchs the only thing that
process provides is syscalls which kernel threads of course don't
need.
Also this makes init process have pid 1 :D
2025-07-02 01:54:03 +03:00
Bananymous
892e16dfb1
Kernel: Increase PS2 timeout to 300 ms, load PS2 in separate thread
...
PS/2 seems to hit command timeout sometimes on slow emulation so
increase the timeouts.
Also move PS/2 device initialization to a different thread because
device indentification waits for timeouts.
2025-07-02 00:17:42 +03:00
Bananymous
92e4078287
Kernel: Rewrite ThreadBlocker
...
This gets rid of a very old bug where kernel panics when thread is being
woken up and unblocked at the same time on different cores. This
required adding a new lock to SchedulerQueue::Node and adding a cap to
how many threads a threadblocker can simultaneously block. I don't think
I ever block more than five threads on the same ThreadBlocker so this
should be fine.
2025-07-02 00:17:42 +03:00
Bananymous
41e1819072
Kernel: Align argv and envp to pointer boundary
...
This bug was found with ubsan
2025-07-02 00:17:42 +03:00
Bananymous
fb7e9719a1
Kernel: Add fast fill method to framebuffer device
...
This makes `clear` much faster when running without kvm!
2025-07-02 00:17:42 +03:00
Bananymous
c2d09b64ca
Kernel: Drop 24 bpp support from double buffer
...
I don't even know why this was supported, I am not planning on making
the fb anything other than 32 bpp
2025-07-02 00:17:42 +03:00
Bananymous
1b2aa6c2da
Kernel: Fix unaligned access in AML
...
Found with ubsan
2025-07-02 00:17:42 +03:00
Bananymous
a5b4cee298
Kernel: Load USTAR from a boot module if loading root partition fails
...
This allows banan-os to boot on hardware where we don't have working
storage driver or the storage driver fails (pretty common with my usb
mass storage drivers...)
2025-07-02 00:17:42 +03:00
Bananymous
17f1ac10e3
Kernel: Don't ignore modules passed with multiboot2
2025-07-02 00:17:42 +03:00
Bananymous
c67198032f
Kernel: Rewrite TmpFS block and inode allocation
...
This makes creating files and appending to then A LOT faster. Some code
I tested took 40 seconds in the previous implementation and less than a
second on the new one!
This code is really sketcy, I hope I'll never have to touch it again :)
2025-07-02 00:17:42 +03:00
Bananymous
107b092982
Kernel: Allow arbitrary sized tmpfs files
...
The 2 block limit started to get annoying :D
2025-07-02 00:17:42 +03:00
Bananymous
bac06e45a4
Kernel: Fix TmpSymlinkInode target getting/setting
2025-07-02 00:17:42 +03:00
Bananymous
0e8a68831c
Kernel: Fix TmpInode chmod not preserving file type
2025-07-02 00:17:42 +03:00
Bananymous
5912abd541
Kernel: Add error reporting for readonly mounted filesystems
2025-07-02 00:17:42 +03:00
Bananymous
13d33995cb
Kernel: Make sure PageTable::fast_page gets passed page aligned addr
2025-06-30 01:48:47 +03:00
Bananymous
c8c05f62b4
Kernel: Remove unused FileSystem::dev
2025-06-29 00:29:03 +03:00
Bananymous
ebf2b16d09
Kernel: Implement chown to ext2 and tmpfs
2025-06-28 21:28:54 +03:00
Bananymous
7314cf708c
Kernel: Only restart certain syscalls with SA_RESTART
...
SA_RESTART is not supposted to restart every function.
2025-06-28 20:25:35 +03:00
Bananymous