Bananymous/banan-os
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Author SHA1 Message Date
Bananymous 1c67b5e812 Kernel: Fix wait syscall to report status of exited children 2024-08-09 16:52:35 +03:00
Bananymous b6c964c444 Kernel: Rewrite pipes 
Pipes have now a fixed size buffer and pipe clone and close is working
again.
 2024-08-09 16:50:19 +03:00
Bananymous 6fedf06150 LibC: Implement {sig,_,}{longjmp,setjmp} 2024-08-09 15:58:56 +03:00
Bananymous 91d513a672 2000th COMMIT: userspace: Implement basic fetch program bananfetch 
This patch adds a obligatory fetch program to banan-os!

This program (`bananfetch`) fetches some basic information about the
operating system and the hardware its running on!
 2024-08-09 15:58:56 +03:00
Bananymous 44f0ec601f Kernel: Expose /proc/meminfo and fix /proc/<pid>/meminfo 
Thread was unconditionally calling <stack>->size() without validating
that the stack actually exists
 2024-08-09 15:58:56 +03:00
Bananymous 2a659a9d03 BuildSystem: Fix enable sse definition 
__enable_sse was never actually defined for any targets. This also adds
__arch definition for libc (so `utsname` works).
 2024-08-09 15:52:42 +03:00
Bananymous 7e7c3a1bb3 Kernel: VirtualTTY now handles dark colors 
I have seemingly forgot to add these before
 2024-08-09 15:52:42 +03:00
Bananymous 3b23458ecc LibC: Start work on locales 
This patch adds 2 locales, POSIX locale and UTF8 locale.

functions `mbstowcs()` and `strcoll()` use locales to do convertions and
comparison respectively.
 2024-08-09 15:52:42 +03:00
Bananymous 7afdfb150f LibC: Rewrite sigprocmask in terms of pthread_sigmask 
Also don't fail SYS_SIGPROCMASK if how is invalid and set is NULL.
 2024-08-07 17:01:35 +03:00
Bananymous 2ca7886f88 Ports: remove architecture from .compile_hash files 
This is was over complicating things and there can be only one banan-os
build at a given time.
 2024-08-07 16:34:28 +03:00
Bananymous 5aca6c7c1f Ports: Fix bugs in the port system 
Fix some bugs and add pkg-config for the port system. Also ncurses is
now downloaded from the gnu mirror in the hope that it works better
 2024-08-07 01:57:44 +03:00
Bananymous fe94d6cf89 LibC: Implement dummy rename() so vim can save files 
vim calls rename when saving a file. This patch adds dummy
implementation that only works for regular files and does a copy instead
of proper rename.
 2024-08-05 20:16:05 +03:00
Bananymous 0a7c316ffb Kernel: Fix race condition when blocking threads 
If thread was blocked, but had not reached block queue, you might
already get an unblock request which would fail on an assertion.

If blocked thread was load balanced to another processor and unblocked
simultaneously, there was a race condition.
 2024-08-05 20:14:13 +03:00
Bananymous e72424e01a Kernel: Implement ANSI CSI M and fix ANSI CSI L 
There are not maybe not correct, but work much better than the old ones
 2024-08-05 15:53:01 +03:00
Bananymous dbba9128a4 Ports: Add ncurses and vim port! 
vim is kind of buggy because my virtual tty {insert,delete} line ansi
codes don't really work.
 2024-08-05 15:20:18 +03:00
Bananymous 352c1ddc16 BuildSystem: Rewrite port compilation system 
Now ports define some environment variables, and call a unified bash
script that handles configuration, recompilation and installation.

If a port uses non-configure buildsystem, port script can also specify
custom build and install step.
 2024-08-05 15:20:18 +03:00
Bananymous 4d96ae56ac LibC: Add stubs for ungetc(), tcflush() and symlink() 2024-08-05 01:48:24 +03:00
Bananymous adadb10b15 LibC: Fix strsignal() and implement psignal() 2024-08-05 00:59:03 +03:00
Bananymous a749b9806e LibC: Add definition for h_errno 
Nothing uses this yet, but linking will succeed
 2024-08-05 00:58:06 +03:00
Bananymous 615d9d4abe LibC: Add INADDR_LOOPBACK 
Some port was using this. Loopback addresses are not supported, but they
will be 127.0.0.1.
 2024-08-05 00:56:42 +03:00
Bananymous aa03274093 LibC: Remove O_DIRECTORY from opendir() 
opendir() did not work on symlinks after with this flag...
 2024-08-05 00:55:03 +03:00
Bananymous e7a06979ec LibC: Implement usleep() 
This is not a POSIX function, but some ports seem to be using it either
way
 2024-08-05 00:54:17 +03:00
Bananymous 3651306f57 LibC: Implement strto{u,i}max() 2024-08-05 00:53:27 +03:00
Bananymous 5dce4e6aea LibC: Implement strftime() 
I did not test this at all, this might very well be broken
 2024-08-05 00:49:44 +03:00
Bananymous 1d9041f2aa LibC: make opendir() fail if path is not a directory 2024-08-01 22:57:46 +03:00
Bananymous a578527012 Kernel/LibC: Implement ioctl(TIOCGWINSZ) 
This allows ncurses to get the window size!
 2024-08-01 22:56:26 +03:00
Bananymous af78a2d080 Kernel: Implement ANSI CSI L for TTY 
vim seems to be using this, so I decided its needed
 2024-08-01 22:08:46 +03:00
Bananymous 840000d02b Kernel: Make sure null signal is not send with kill() 2024-08-01 21:41:54 +03:00
Bananymous 9ea4c777ad Kernel: TTY now handles ESC key presses 
This allows exiting vim :D
 2024-08-01 21:41:11 +03:00
Bananymous a33b63d066 Kernel/LibC: Implement alarm() and setitimer() 
This makes vim able to start!
 2024-08-01 21:09:56 +03:00
Bananymous da3b30cd94 Kernel: Add macro to dump all syscalls and their return values 2024-08-01 18:21:49 +03:00
Bananymous 4599e1dec5 Kernel: Make schedler not crash when unblocking active thread 
This was happening when sending signals to processes that were currently
running.
 2024-08-01 18:21:49 +03:00
Bananymous 6de350ce9d Kernel/LibC: Cleanup, fix and implement a lot of signal code 
This patch implements sigsets and some of their usages
 2024-08-01 17:01:18 +03:00
Bananymous 838d31fa41 Kernel: Implement more POSIX compliant open() and openat() syscalls 2024-08-01 15:35:02 +03:00
Bananymous 401b460d75 LibC: Implement setbuf() and setvbuf() 2024-08-01 01:30:00 +03:00
Bananymous c440204fa5 LibC: Implement dummy strcoll() 2024-07-31 23:58:10 +03:00
Bananymous adf50dffd8 LibC: Implement uname() 2024-07-31 23:54:26 +03:00
Bananymous 20d38ed28c LibC/Shell: Implement gethostname() and shell uses it for hostname 2024-07-31 23:53:55 +03:00
Bananymous edc30cd71d LibC: Compile without exceptions 
This allows libc to not require __gxx_personality_v0. I can maybe add
C++ back to libc... :D I don't know why I did not research earlier what
this symbols was used for
 2024-07-31 23:33:41 +03:00
Bananymous 10ce03a1e7 LibC: Implement ctime() and asctime() 2024-07-31 23:26:10 +03:00
Bananymous 5fca5c774a LibC: Implement umask() 2024-07-31 23:26:10 +03:00
Bananymous fc6c39e670 LibC: Implement gettimeofday() 2024-07-31 23:26:06 +03:00
Bananymous 7c3b6307d9 Kernel: Cleanup USB initialization code 2024-07-31 23:23:44 +03:00
Bananymous e52dac3b25 LibC: Implement tmpnam() 
This implementation is not really spec compliant as rand() does not
guarantee TMP_MAX different outputs + seeding
 2024-07-30 12:02:30 +03:00
Bananymous 62db9a8ef3 LibC: Implement C++ static guards 2024-07-30 12:02:05 +03:00
Bananymous f0be4f86a6 LibC/Kernel: Implement access 2024-07-30 11:51:07 +03:00
Bananymous e5bb843059 LibC/Kernel: Implement ttyname 2024-07-30 11:41:18 +03:00
Bananymous ca774dfeb5 LibC: Implement setlocale() for C locale 2024-07-30 11:33:02 +03:00
Bananymous 681d8327f5 LibC/Kernel: Cleanup termios code 
This is still not correct, but much better than it used to be
 2024-07-30 11:10:43 +03:00
Bananymous 9bc02c81f8 Kernel: Map DMA and PCI MMIO as uncached 2024-07-30 11:10:08 +03:00
Bananymous bb1738db8c Kernel: Make thread unblocking O(1) 
This is still bit broken. VirtualBox seems to freeze sometimes, but I
could not recreate this on qemu (with and without kvm) or real hardware.
 2024-07-24 00:31:01 +03:00
Bananymous 9548c592a3 Kernel: Always print basic info about xHCI controller 
Its nice to see that the controller is getting initalized
 2024-07-23 09:09:08 +03:00
Bananymous cda0276d39 Kernel: Force PCI irq line usage when not using APIC 
afaik PIC does not support MSI
 2024-07-23 09:08:00 +03:00
Bananymous 539afb329a Kernel: All processors use LAPIC timer when running with APIC 
This makes scheduler preemption much cleaner as bsb does not have to
send smp messages to notify other processes about timer interrupt.

Also PIT percision is now "full" 0.8 us instead of 1 ms that I was using
before.
 2024-07-23 02:28:52 +03:00
Bananymous 3e0150f847 Kernel: Pressing F1 now toggles rendering of CPU loads to the terminal 
This can be nice for seeing the performance and problems on the load
balancing algorithm.
 2024-07-22 00:43:13 +03:00
Bananymous f8261c60c0 Kernel: Rewrite the whole scheduler and re-architecture SMP handling 
Change Semaphore -> ThreadBlocker
  This was not a semaphore, I just named it one because I didn't know
  what semaphore was. I have meant to change this sooner, but it was in
  no way urgent :D

Implement SMP events. Processors can now be sent SMP events through
IPIs. SMP events can be sent either to a single processor or broadcasted
to every processor.

PageTable::{map_page,map_range,unmap_page,unmap_range}() now send SMP
event to invalidate TLB caches for the changed pages.

Scheduler no longer uses a global run queue. Each processor has its own
scheduler that keeps track of the load on the processor. Once every
second schedulers do load balancing. Schedulers have no access to other
processors' schedulers, they just see approximate loads. If scheduler
decides that it has too much load, it will send a thread to another
processor through a SMP event.

Schedulers are currently run using the timer interrupt on BSB. This
should be not the case, and each processor should use its LAPIC timer
for interrupts. There is no reason to broadcast SMP event to all
processors when BSB gets timer interrupt.

Old scheduler only achieved 20% idle load on qemu. That was probably a
very inefficient implementation. This new scheduler seems to average
around 1% idle load. This is much closer to what I would expect. On my
own laptop idle load seems to be only around 0.5% on each processor.
 2024-07-22 00:33:50 +03:00
Bananymous 9f90eeab05 Kernel: Fix stack pointer OOB check 
i686 does not push the stack pointer on interrupt when no CPL change
happens.
 2024-07-22 00:27:08 +03:00
Bananymous 1ee37cb671 Kernel: Make sure stack is aligned on interrupts for i686 target 
I just realized that only x86_64 aligns stack pointer when interrupt is
triggered.
 2024-07-22 00:10:42 +03:00
Bananymous 8fe798de6d Kernel: Make PIT counter atomic with spinlock 2024-07-21 18:56:41 +03:00
Bananymous e00efca170 Userspace: Pprogram template and loadfont mark install as optional 2024-07-21 17:41:40 +03:00
Bananymous 86b6714777 Kernel: Add command line option to boot without smp 2024-07-21 17:40:57 +03:00
Bananymous 77b5e6d44a Kernel: Make ATABus use BAN::Atomic<> instead of gcc builtin atomics 2024-07-21 17:39:26 +03:00
Bananymous ffe73165f9 Kernel: Fix PCI typo serail -> serial 2024-07-21 17:36:29 +03:00
Bananymous 96c7e9e29d Kernel: Cleanup VirtualRange code 
Virtual range does not need to look into the page table for mapped
physcial pages. It can (and should) just keep track of them itself.
 2024-07-21 17:35:07 +03:00
Bananymous 02051ed60f Kernel: Move keyboard kernel panic to the general input device 
This will allow command to work without requiring it per keyboard driver
 2024-07-21 17:33:38 +03:00
Bananymous f49689caac Kernel: Implement API for sending IPIs for only one processor 
Also move the spin wait to check for pending IPI sends to the start of
ipi sending function. There is no need to wait for IPI send succeeding
right after it. It is enough to make sure there are not multiple IPIs
being sent at the same time.
 2024-07-21 17:30:59 +03:00
Bananymous 819c130366 BAN: If format string is started with space, numbers are padded with it 2024-07-19 21:39:31 +03:00
Bananymous 974b9b992d Kernel: Fix process exiting infinite loop 
If process was exiting and had a process waiting for it and that waiting
process got interrupted, the exiting process could never exit.
 2024-07-18 21:40:44 +03:00
Bananymous 3ab1214012 LibC: Fix _toupper and _tolower definitions 
They were using C++ global namespace, which of course does not exist for
C targets.
 2024-07-18 01:10:51 +03:00
Bananymous 4b917390ac Kernel: Fix sse state saving 
This was broken when I added SMP support. This patch makes sse kind of
dumb as it is saved and restored on every interrupt, but now it at least
works properly... I'll have to look into how sse can get optimized
nicely with SMP. Simple way would be pinning each thread to a specific
processor and doing pretty much what I had before, but sse thread saved
in processor rather than static global.
 2024-07-16 23:15:11 +03:00
Bananymous 7a0fb9a57f Kernel: Fix TTY scroll clearing first and/or last characters from line 2024-07-16 22:49:49 +03:00
Bananymous 58fcd2b2fe Kernel: Fix multi-interface USB device initialization 2024-07-16 22:29:18 +03:00
Bananymous bdcf058e52 README: update discord link 2024-07-16 21:10:32 +03:00
Bananymous 61f0043cd8 resolver: Fix infinite debug printing loop, if client disconnects 2024-07-16 15:05:07 +03:00
Bananymous dd7bfba8d5 ports: Compile with multiple jobs and fix curl install query 2024-07-16 15:04:46 +03:00
Bananymous 5b8fdbc82d LibC: Don't expose math.h in stdlib.h 2024-07-16 12:47:38 +03:00
Bananymous 6a1c677cbc Ports: Update doom port gitignore 2024-07-16 11:54:57 +03:00
Bananymous e30952efee Kernel: Implement key repeating for USB keyboard 
USB keyboards don't send repeating keys automatically, so it has to be
emulated in software.
 2024-07-16 11:54:57 +03:00
Bananymous fd8dc03ae9 BAN: Default initialize optional storage 
This removes maybe uninitialized warning when using default initialized
optionals.
 2024-07-16 11:19:16 +03:00
Bananymous 1337758660 Kernel: Make USB HID interfaces configure all endpoints 2024-07-16 00:23:26 +03:00
Bananymous 339e8a7910 Kernel: Fix USB keyboard state updating with variable reports 2024-07-16 00:03:00 +03:00
Bananymous a60b460701 Kernel: Update USB HID code to support multiple top-level collections 
This allows me to use my laptops own keyboard!
 2024-07-16 00:01:53 +03:00
Bananymous a5cb4057f9 Kernel: Implement unified input files for device hot-plugging support 
/dev/keyboard and /dev/mouse can be read for events from any attached
keyboard or mouse respectively. This makes device hot-plugging support
pretty much automatic for TTY, GUI, and whatever takes input.
 2024-07-15 22:11:15 +03:00
Bananymous 9d7f97ccd5 Kernel: Implement DevFileSystem::remove_device 
This function cleanly removes the devices from the whole filesystem.

USB devices are now removed from the filesystem as soon as they are
destroyed.
 2024-07-15 22:10:42 +03:00
Bananymous 0578d41500 Kernel: Implement WriteCombining memory 
This makes framebuffer much faster on real hardware
 2024-07-15 22:09:09 +03:00
Bananymous 42c3fa24f0 Kernel: Add support for HID Report ID and parsing all collections 
Only the first top-level collection is used for the device, but that
seems to generally be what keyboard and mouse use for input.
 2024-07-15 15:51:07 +03:00
Bananymous 60b396fee5 Kernel: Add mouse move and scroll event merging back 
This makes mouse work much faster when reading can't keep up with the
amount of events.
 2024-07-15 15:45:20 +03:00
Bananymous 4cd9252ff6 Kernel: Fix USB code 
Fix USB Keyboard scan code table for bottom row of keyboard

Support multiple interfaces on a single USB device

Add usb mouse to default qemu settings
 2024-07-15 11:48:48 +03:00
Bananymous 75875d3a8f Kernel: Set interval and average trb length on configure endpoint 
Real controllers seem to require this while spec 4.8.2.4 says that they
should be left as zero.
 2024-07-15 11:46:28 +03:00
Bananymous 86e9d92ecb Kernel: Take ownership of xHCI controller from bios 2024-07-14 03:31:35 +03:00
Bananymous baa4e6475a Kernel: Implement basic USB Mouse 
This has the same problem I described in previous commit for keyboard
 2024-07-14 02:11:32 +03:00
Bananymous ac5c77ee2c Kernel: Implement USB Keyboard 
This is kinda hacky, as I had disable the PS/2 initialization so that
usb keyboard gets /dev/keyboard0. I should add device hot plugging
support for TTY and GUI...
 2024-07-14 02:09:18 +03:00
Bananymous 1efc6a1385 Kernel: Implement simple USB HID driver 
This should be easily expandable to add HID devices
 2024-07-14 02:04:48 +03:00
Bananymous 442ea8a692 BAN: Remove Optional emplace constructor 
This was kind breaking some initializations. Emplacing is still possible
through Optional::emplace
 2024-07-14 01:53:50 +03:00
Bananymous 749be67df3 Kernel: Fix cxxabi for function static variable guards 2024-07-14 01:53:50 +03:00
Bananymous a97a574718 Kernel: Rewrite the whole input system 
PS/2 code is now kind of messed up, but it works. Keyboards and mice are
now an abstract class that is automatically exposed to userspace. This
will make adding USB input much nicer.
 2024-07-14 01:53:50 +03:00
Bananymous 110a45bee6 BAN: Implement Variant::has_value() and Variant::operator bool() 2024-07-12 20:37:56 +03:00
Bananymous f120da3aca Kernel: USB device now sets the current configuration 2024-07-12 11:26:06 +03:00
Bananymous 240684bc1f Kernel: Refactor some xHCI code and add new definitions 2024-07-12 11:25:24 +03:00
Bananymous 62003d96f3 BAN: Implement Optional::value_or 
This will return value specified in the argument if optional is not
storing any value.
 2024-07-12 11:22:10 +03:00