af854ec9e1
Kernel: Thread creation now takes void(*)() as entry and void* as data
...
This simplifies threading for the future and gets rid of (undefined?)
cast of member function pointer to address
2023-03-09 15:33:42 +02:00
8dbece9119
Kernel: kmalloc minimum align is forced to s_kmalloc_min_align
2023-03-09 14:37:25 +02:00
8940ff8002
Kernel: You don't have to check whether VFS is initialized or not
...
VFS now returns Error when attempting to traverse inodes if it did
not find root partition
2023-03-09 02:31:24 +02:00
fc58baf54d
Kernel: if VFS initialization does not find root, we fail
2023-03-09 02:17:42 +02:00
2e6e0d0ef5
Kernel: FIX ubsan complaining about unaligned addresses for STDHeaders
2023-03-08 22:55:44 +02:00
371dfe8ef3
BAN: Formatter now uses perfect forwarding on its arguments
2023-03-08 21:31:26 +02:00
7458f68c38
BAN: Error can now be constructed from c_string or format string
...
If the resulting string would overflow, we just truncate it to fit
the error message buffer (128) bytes
2023-03-08 17:05:37 +02:00
d90aba0963
Kernel: Create CriticalScope and fix kmalloc
...
This disables interrupts for the current scope and restores them
after the scope. This is used in kmalloc, since scheduler might
call into kmalloc/kfree, but deadlock if some thread is currently
trying to allocate. This allows us to use kmalloc in Scheduler.
2023-03-08 13:55:53 +02:00
a068d828fe
Kernel: ATA reads go through the ata controller and not only device
2023-03-08 03:26:25 +02:00
1dabe7a222
Kernel: More rework on Scheduler
2023-03-08 03:26:25 +02:00
23b3028e15
Kernel: Rename RefCounted -> RefPtr and implement RefCounted
2023-03-08 03:26:25 +02:00
f7ebda3bf1
Kernel: Move interrupt related functions to InterruptController
2023-03-08 03:16:51 +02:00
b5673278c4
Kernel: Disable color after Debug::dump_stack_trace
2023-03-08 02:41:44 +02:00
0b62729887
Kernel: Scheduler sleeping is working
...
We have to disable optimization for one function, but I'm working
on a fix
2023-03-08 02:41:44 +02:00
b8ee77eb78
Kernel: Initial work on new scheduler with queues
...
Sleeping is definately broken
2023-03-08 02:41:44 +02:00
a9acf1f6dc
Kernel: PCIDevice is now class with getters and constructor
2023-03-08 02:41:44 +02:00
42c33ebfb3
Kernel: kmalloc aligns size to s_kmalloc_min_align
...
We don't get unaligned memory anymore from kmalloc
2023-03-08 02:41:44 +02:00
8a52c0f9d7
Kernel: Cleanup RSDP parsing code
2023-03-07 00:41:13 +02:00
06db890d49
Kernel: Add ubsan
...
My brain has been melting since I'm getting very random bugs.
I hope I can debug them better with ubsan :)
2023-03-06 23:38:05 +02:00
d5f302a68b
Kernel: kmalloc now uses two locks
...
One for fixed allocations and one for general allocations
2023-03-06 12:40:35 +02:00
f1f5e76636
Kernel: kmalloc requires alignment to be power of two
2023-03-02 22:31:13 +02:00
52aa98ba25
Kernel+LibC: Add some errno codes
...
Kernel now returns ENOMEM and other errnos, so we dont have to write
error messages
2023-03-02 21:10:44 +02:00
90a7268e5a
BAN: Rewrite RefCounted to return ErrorOr
2023-03-02 12:30:11 +02:00
1dd61e93b6
Kernel: Threads cannot take arguments anymore
2023-03-02 01:56:09 +02:00
7fcbb869e1
Kernel: Initialize GDT in kernel code
...
We dont use the boot GDT only while booting
2023-03-01 21:21:56 +02:00
9756de02ef
Kernel: MMU now takes flags when allocating pages
2023-03-01 21:21:56 +02:00
7d84f290a1
Kernel: Add lock to Disk reads before I forget
2023-02-26 03:48:11 +02:00
ee5d02aa70
Kernel: Rewrite basically all current disk io stuff
...
This is a big commit that was kinda hard to split to smaller ones.
Essentially we now look at all the mass storage devices from PCI
and initialize (P)ATA devices. This doesn't provide any more functionality
but better abstractions and everything doesn't have to be on its old
default port that might be different for modern computers.
2023-02-26 03:00:29 +02:00
40cf68a22a
Kernel: Shell now sleeps through Scheduler and doesn't 'hlt'
...
ls doesn't crash when trying to list file
2023-02-26 02:57:27 +02:00
04bb08d27f
Kernel: Add basic PCI enumeration
2023-02-26 02:56:53 +02:00
390a747768
Kernel: Add prefs font for terminal output before file system
2023-02-23 01:22:50 +02:00
a4980acc88
Kernel: Fonts can now be parsed from the filesystem and set to terminal
...
We currently dont have a fallback font if we cannot get to filesystem
initialization, but that will come later. I can't test on real hardware
for this reason.
2023-02-22 22:29:31 +02:00
0e668738dc
Kernel: Make some basic bitmap font parsing code
2023-02-22 22:28:12 +02:00
a3e9e7d125
Kernel: Fix some shell commands
2023-02-22 21:55:32 +02:00
4cd99c71ca
Kernel: kmalloc uses now spinlock and fix kmalloc_fixed()
2023-02-22 21:49:28 +02:00
d9c05b7378
Kernel: rewrite the whole kmalloc (again)
...
Performance of the old kmalloc implementation was terrible.
We now use fixed-width linked list allocations for sizes <= 60 bytes.
This is much faster than variable size allocation.
We don't use bitmap scanning anymore since it was probably the slow
part. Instead we use headers that tell allocations size and aligment.
I removed the kmalloc_eternal, even though it was very fast, there is
not really any need for it, since the only place it was used in was IDT.
These changes allowed my psf (font) parsing to go from ~500 ms to ~20 ms.
(coming soon :D)
2023-02-22 16:32:50 +02:00
5d31e89574
Kernel: Update ErrorOr API and add path find to VFS
...
These two are done on the same commit since Changes to Shell were
annoying to make work with only one change
2023-02-22 01:23:11 +02:00
038379274e
Kernel: Inode can now return full mode value
...
Kernel::Inode::Mode is an union of bitmasked fields for every
possible bit
2023-02-20 21:39:24 +02:00
efaca469ee
Kernel: Ext2Inode now supports indirect blocks through for_each_block()
2023-02-20 10:25:15 +02:00
80006ea137
Kernel: Initial work on filesystem
...
We support now ext2 directory listing. File reading is not yet supported.
2023-02-20 01:46:00 +02:00
0506fee34a
Kernel: Shell's thread now uses sleep instead of polling
...
Also added 'sleep' command that just sleeps for 5 seconds
2023-02-19 18:52:25 +02:00
1bd8b0fe5c
Kernel: Sleep now actually sleeps and allows idling
2023-02-19 18:52:25 +02:00
8f1b6da2af
Kernel: Use Vector instead of raw poiters in Disk stuff
...
We now don't have to manually free allocated data
2023-02-16 20:48:41 +02:00
460fc3a29f
Kernel: Start working on filesystem
...
We have a basic PATA driver (for reading) and gpt parser.
2023-02-16 20:00:31 +02:00
94cbacc998
Kernel: PIT now has very barebones sleep
2023-02-16 17:53:25 +02:00
1b45b4d728
Kernel: Remove unnecessary BOCKS_BREAK()
2023-02-16 17:52:39 +02:00
2161528cb6
Kernel: Shell is now launched as a capturing lambda
2023-02-02 23:27:51 +02:00
cdbad56ed7
Kernel: Update shell thread command to run following command as thread
...
'thread echo "Hello World"' runs the command 'echo "Hello World"' after
5 seconds have passed. This was just my test code for threading
2023-02-02 23:26:19 +02:00
5b5e620d8a
Kernel: Improve multithreading support
...
We can now use arbitary BAN::function<void(...)> as the Thread.
I also implemented multithreading for i386 since it was not done
on the initial multithreading commit.
2023-02-02 23:24:12 +02:00
f6b05212e0
Kernel: Add is_locked() to spinlock
...
I think this is atomic read
2023-02-02 15:49:30 +02:00
9b8de5025a
All: rename every function from UpperCamelCase to snake_case
...
This was a mess since I didn't know which to use but now I decided
to go with snake_case :)
2023-02-01 21:05:44 +02:00
6a9d60a8fb
Kernel: Implement somewhat functioning multithread support
...
This still uses only a single cpu, but we can now have 'parallelization'
This seems to work fine in qemu and bochs, but my own computer did not
like this when I last tried.
I have absolutely no idea how multithreading should actually be
implmemented and I just thought and implemented the most simple one I
could think of. This might not be in any way correct :D
2023-02-01 01:53:35 +02:00
337569b0ca
Kernel: Implement basic SpinLock
2023-02-01 01:52:52 +02:00
be502ae616
Kernel: Debug stacktrace now detects if it kernel panics itself
2023-01-31 18:43:09 +02:00
6dc22b7251
Kernel: Add actual register values to x86_64 kernel panic
...
Very hackish implementation, but we now get actual registers at the
time of the interrupt happening
2023-01-30 18:52:38 +02:00
bfe3426f6d
Kernel: Add processor dump flag to APIC
2023-01-26 13:13:46 +02:00
f0093ed2fd
Kernel: kmalloc_eternal now updates the used/free values
...
I also improved the kmalloc_dump_info() formatting. We format the
values as 8-digit hex numbers since (atleast for now) the kmalloc
will always be under 4 GiB address and size :)
2023-01-26 03:04:19 +02:00
e00d18029d
Kernel: rewrite some of APIC since it didn't work with xsdts for some reason
2023-01-26 02:57:14 +02:00
aa0757e135
Kernel: Move dump_stacktrace from panic -> debug
2023-01-26 02:57:14 +02:00
e87026f01d
Kernel: I have no idea what this commit does
...
I had committed a change in IDT but reverted it now.
This propably only adds a spurious interrupt detection to common cpp
interrupt handler?
2023-01-26 02:55:37 +02:00
9c31790359
Kernel: Add option to disable Serial output
...
This makes all debug output to appear on the TTY
2023-01-25 22:51:42 +02:00
c0bc002ac6
Kernel: Move debug printing to its own file
...
It didn't make sense that dprint was defined in Serial.h.
We also now dump dprint to tty if there is no serial and tty is initialized
2023-01-25 22:51:42 +02:00
48348c9e57
Kernel: Cleanup APIC code. Remove unnecessary defines and add consts
2023-01-25 19:00:41 +02:00
ba53582f23
Kernel: Rewrite APIC and PIC more OOP friendly
...
x86_64 port is slowly coming together
2023-01-23 20:13:57 +02:00
54043288cb
Kernel: Move CPUID out of arch/
...
CPUID instructions behaves the same on x86 and x86_64. I am not
planning on supporting any non x86 based architectures.
2023-01-23 18:12:52 +02:00
1b9f7aa815
Kernel: Rewrite the whole VESA driver
...
We dont support vga text mode currently. I might add it later if needed.
I also removed mouse 'support' from Shell since it didn't do anything
and I didn't implement arbitary bitmap rendering to framebuffer
2023-01-23 13:21:53 +02:00
b67bbab083
Kernel: fix dump_stacktrace
2023-01-22 20:05:24 +02:00
026fdc251c
Kernel: Add kmalloc_eternal back
2023-01-22 03:10:48 +02:00
6ec4ba3dc9
Kernel: Move dump_backtrace() out of arch.
...
I discovered __builtin_frame_address()
2023-01-22 03:00:13 +02:00
491610db2c
Kernel: move GDT initialization to boot.S
2023-01-22 00:48:12 +02:00
fdbc04f29d
Kernel: kmalloc now uses the actual kernel end location
2023-01-21 22:40:23 +02:00
9088f7b305
Kernel: kmalloc prints addresses on panic
2023-01-21 22:29:44 +02:00
53a5ad3cf9
BAN: Function now properly forward arguments
2023-01-17 11:16:46 +02:00
7540fa0385
Kernel: Shell now 'properly' parses commandline
2023-01-16 20:09:22 +02:00
46e5b3f3d6
Kernel: Move GDT to its own namespace and cleanup
2023-01-16 15:24:10 +02:00
b46fa0d116
Kernel: Shell can now dump kmalloc info
2023-01-16 15:17:00 +02:00
8881c1e117
Kernel: Shell is no longer singleton
2023-01-16 15:16:39 +02:00
1545850be3
Kernel: Input callbacks use the new BAN::Function
2023-01-16 15:15:02 +02:00
689338b506
Kernel: kmalloc can now dump current memory usage
2023-01-13 17:42:19 +02:00
f547a788f2
Kernel: Add support for arrow keys in Shell
2023-01-13 15:07:24 +02:00
bf4b26d1fd
Kernel: kmalloc now returns nullptr if you try to allocate over kmalloc size
2023-01-13 15:04:06 +02:00
416a41745f
Kernel: Kernel::Panic now checks that TTY is initialized instead of VESA
2023-01-13 15:04:06 +02:00
af8d486893
Kenrel: TTY fix cursor position with ANSI escapes
2023-01-13 15:04:06 +02:00
d0aa938b35
Kernel: remove unused function from kmalloc
2023-01-13 00:03:10 +02:00
61bd9da8e0
BAN: Add [[nodiscard]] to BAN functions returning ErrorOr
2023-01-12 23:57:07 +02:00
087d14fbb7
Kenrel: Remove unnecessary print from kmalloc_initialize()
2023-01-12 13:24:41 +02:00
3dfe062de1
Kernel: Cleanup TTY code
2023-01-12 13:24:41 +02:00
8fd51fb47d
Kernel: Replace Paging{.h,.cpp} with better MMU{.h,.cpp}
2023-01-12 13:24:36 +02:00
64c57ea3d0
Kernel: Remove obsole CPUID::IsAvailable
...
This is now a harware requirement that is verified already in boot.S
2023-01-10 21:28:59 +02:00
7d45b3cbd6
Kernel: Rewrote kmalloc to be much simpler and allow alignment
2023-01-10 21:10:36 +02:00
6f9552d673
BAN: Add math to its own namespace
2023-01-10 19:11:27 +02:00
c6467b8ebc
Kernel: Multiboot data and kernel command lines are now global variables
2023-01-10 17:50:24 +02:00
979a5960e4
Kernel: We don't use floating point arithemtic anymore in kernel
2023-01-10 11:10:17 +02:00
efd8638a96
Kernel: Improve kernel panic message and rename it 'panic'->'Panic'
2023-01-09 21:57:03 +02:00
086f0c7cf6
Kernel: Better error reporting from VESA and fix texmode rendering
2023-01-05 03:36:20 +02:00
a12ddfa12a
Kernel: Update PS/2 controller
2023-01-04 19:22:23 +02:00
fcec793873
Kernel: Shell now renders a mouse
...
PS/2 mouse doesn't seem to work with PIC.
2022-12-30 20:48:15 +02:00
ef0b2010e0
Kernel: Add basic PS/2 Mouse driver
2022-12-30 19:38:21 +02:00
3c92aa45fb
Kernel: 'cpuinfo' command in shell now shows wheter you are running on 64-bit cpu
2022-12-28 19:46:37 +02:00
06a4ef1d87
Kernel: Commandline parsing does not depend on kmalloc anymore
2022-12-28 04:17:46 +02:00
5d7a767f8b
Kernel: Enable basic paging
2022-12-28 04:17:34 +02:00
3e8590687f
Kernel: Cleanup code and move kmalloc initialization to later
2022-12-28 04:16:21 +02:00
2a65c5fd0f
Kernel: Shell now actually prints to its TTY
2022-12-27 20:11:49 +02:00
fd4fdffd46
BAN::Formatter now takes putc like function as a parameter
...
This allows us to use capturing lambdas as a putc like function
2022-12-27 19:55:07 +02:00
98fc72b0d0
Kernel: kmalloc now aligns everything by alignof(max_align_t)
...
kmalloc properly aligns everything now.
I also changed so that kmalloc addresses are stored as uintptr_t
instead of void* or uint8_t* for easier arithemetic and less casting
2022-12-27 19:07:20 +02:00
620b836fc3
Kernel: VESA now somewhat handles Cursor in Graphics mode
2022-12-27 18:29:02 +02:00
d8fd6afd12
Kernel: Make TTY a class
2022-12-23 15:55:45 +02:00
3f7a61a4d2
Kernel: VESA driver has now second buffer for fast scrolling
...
This allows us to not read from video memory, since it was very slow
I also implemented fast path for graphics clearing and scrolling if bpp is 32
2022-12-20 14:02:44 +02:00
5e2680cade
Kernel: You can now disable APIC from the grub commandline
2022-12-20 11:57:09 +02:00
4c559f50a4
BAN: StringView::Split() now precomputes number of elements
...
We dont have to resize vector on PushBack()'s if we reserve required size
2022-12-20 11:37:28 +02:00
64a5a28ff0
Kernel: Add time since boot to Shell
2022-12-19 11:46:38 +02:00
0bdb01ee04
Kernel: Replace PIC with APIC
...
If APIC/IOAPIC is not found, we fallback to PIC
Interrupts don't seem to work on real hardware (?)
2022-12-19 11:46:25 +02:00
7efa5bfb75
Kernel: Shell backspace unicode detection cleanup
2022-12-16 11:53:59 +02:00
f244728d33
Kernel: Add unicode support
2022-12-16 03:55:13 +02:00
9274c9ee2f
Kernel: Abstract TTY to use new VESA
2022-12-15 19:05:07 +02:00
930661619b
Kernel: Add more functionality to Shell
...
commands 'time', 'cpuid', 'random'
2022-12-15 17:29:35 +02:00
711ba19a82
Kernel: Add basic Shell to test functionality
2022-12-13 21:34:50 +02:00
f8224e55b1
Kernel: Force strlen compilation so BAN can use it
2022-12-13 21:33:54 +02:00
174daa3e02
Kernel: Keyboard event callback can now be registered later
2022-12-13 16:15:10 +02:00
171a33bbcd
Kernel/BAN: Add weekday to Time structure and get it with RTC
2022-12-13 14:37:10 +02:00
52c793bb5c
Kernel/BAN: Make Time a struct in BAN and add formatter to it
2022-12-13 12:37:26 +02:00
334abe6b27
Kernel: lol
2022-12-13 12:12:15 +02:00
68e88d9413
Kernel: Add clear() command public TTY API
2022-12-13 10:45:24 +02:00
e62a626b39
Kernel: Improve keyboard input by a lot
...
Seems to work on my 2 computerss
2022-12-13 10:45:06 +02:00
7ebe727a29
Kernel: Add RTC to get current time
2022-12-13 10:41:36 +02:00
79a2bccd21
Kernel: kfree now checks for nullptr
2022-12-13 00:53:19 +02:00
ddc28a8c0e
Kernel: Rename Printer to Formatter
2022-12-13 00:50:21 +02:00
03e7812cae
Kernel: Add basic ANSI support :)
2022-12-10 03:53:44 +02:00
862b32d735
Kernel: Improve kmalloc error messages
2022-12-10 01:08:01 +02:00
3d3f12bd30
Kernel: Add new generic Printer class
...
kprint is now just a #define to Printer::print<terminal_putc>.
This allows us to use same print formatting for serial output :)
2022-12-10 00:57:09 +02:00
26f1ebe26f
Kernel: Implement very basic, but functional kmalloc/kfree
2022-12-09 00:26:24 +02:00
817de9f359
Kernel: Properly handle finnish keyboard layout.
...
You can now type any basic ascii character from keyboard.
Multimedia keys are not yet handled.
2022-12-08 18:05:48 +02:00
e998615253
Kernel: Move GDT and IDT files to architecture specific folder
2022-12-08 17:50:04 +02:00
b7a600c86d
Kernel: Keyboard is now handeled "properly"
2022-12-07 04:35:38 +02:00
4202c999fa
Kernel: IRQs are now working :)
2022-12-07 02:48:44 +02:00
c292ef5471
Improve IDT Kernel panic
2022-11-16 20:28:07 +02:00
20f7c18988
kmalloc does not zero initialize kernel memory
2022-11-16 19:51:45 +02:00
f2b45ba212
Add GDT and IDT
2022-11-16 19:49:09 +02:00
b500a8a7ed
kmalloc
2022-11-16 19:48:36 +02:00
550ecbc951
Kernel panic uses kprint with parameters
2022-11-16 19:47:19 +02:00
123382eace
Fixes :)
2022-11-15 21:42:14 +02:00
d289916bc0
Changed back to lower half kernel, since im dump.
...
I dont see the benefit of higher half (and could not get multiboot info)
2022-11-15 00:38:33 +02:00
9e933a5ec5
Add kernel panic function
2022-11-14 18:53:00 +02:00
b185ed4fd3
Libc is now written in C++
2022-11-14 00:31:24 +02:00
fd13f74bbf
Changed into higher half kernel
...
https://wiki.osdev.org/Higher_Half_x86_Bare_Bones
2022-11-13 02:03:20 +02:00
db656fe469
Implement Stack Smashing Protection
2022-11-12 23:46:33 +02:00
61609db228
Kernel is now in C++ :)
2022-11-12 21:30:26 +02:00
e6b4866ab0
Initial commit. We have a booting kernel
2022-11-12 21:04:47 +02:00
Bananymous