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Code Pull Requests Activity
1,017 Commits 1 Branch 0 Tags
18d582c6ce70c55a7e0d316f1ce1590e971dd2a6
Commit Graph

680 Commits

Author SHA1 Message Date
Bananymous
18d582c6ce Kernel: Hacky kmalloc quick fix 
Remove GeneralAllocator from kmalloc as it is not CriticalScope safe.
This requires increasing kmalloc memory.
 2023-09-25 13:13:57 +03:00
Bananymous
8b2bb95b81 Kernel: VirtualRange doesn't store physical addresses of pages 
This was unnecessarry allocation, since the page table allready
contains virtual address -> physical address mappings.
 2023-09-24 01:29:34 +03:00
Bananymous
2ef496a24a Kernel: all mapped ranges are now stored in one container 
We just now have a flag if a mapping is unmappable
 2023-09-23 23:45:26 +03:00
Bananymous
c0a89e8951 Kernel: Fully remove sys_alloc and sys_free 
I could delete the whole FixedWidthAllocator as it was now obsolete.
GeneralAllocator is still used by kmalloc. Kmalloc cannot actually
use it since, GeneralAllocator depends on SpinLock and kmalloc runs
without interrupts.
 2023-09-23 03:53:30 +03:00
Bananymous
fc953df281 Kernel/LibC: remove PATH resoltion from kernel 
I have no idea why I had made PATH environment variable parsing
to be part of the kernel. Now the shell does the parsing and
environment syscall is no longer needed.
 2023-09-23 03:08:14 +03:00
Bananymous
fe2dca16f0 Kernel/LibC: add flag to enable/disable sse support 
SSE support is very experimental and causes GP. I decided to make
SSE not default until I get to fixing it :)
 2023-09-23 02:28:25 +03:00
Bananymous
f662aa6da2 Kernel/LibC: userspace malloc now uses mmap to get memory 
We could remove syscalls to allocate more memory. This was not
something the kernel should have done.
 2023-09-23 02:26:23 +03:00
Bananymous
fee3677fb9 Kernel/LibC: add mmap for private anonymous mappings 
This will be used by the userspace to get more memory. Currently
kernel handles all allocations, which is not preferable.
 2023-09-22 23:01:14 +03:00
Bananymous
9a3286ad57 Kernel: Add constexpr conditional debug prints 2023-09-22 17:20:35 +03:00
Bananymous
c9e09b840e Kernel: Add LAI as a dependency 
I did not feel like implementing AML interpreter now, and wanted
everything AML has to offer. I will be writing my own AML interperter
at some point.
 2023-09-22 17:20:35 +03:00
Bananymous
8136248a67 Kernel: Fix timer includes 2023-09-22 17:20:35 +03:00
Bananymous
0d67e46041 Kernel: Add config read/write api to PCI 2023-09-22 17:20:35 +03:00
Bananymous
bc1087f5a7 Kernel: Add pointer validation API to page table 2023-09-22 17:20:35 +03:00
Bananymous
7774f56ab6 Kernel: PCI devices can now create region for BAR 
This creates either MEM or IO region for read/write access to PCI
device.
 2023-09-22 17:20:35 +03:00
Bananymous
14a608effd 1000th COMMIT: Kernel: Add basic E1000 driver 
This driver is only capable to read mac address and enable and read
link status
 2023-09-22 17:20:28 +03:00
Bananymous
5fae3cec2a Kernel: Implement SYS_SYNC and add sync executable to userspace 
You can (and have to) manually sync disk after writes to it.
 2023-09-11 01:26:27 +03:00
Bananymous
b0c22b61ec Kernel: Writes to disk are not synchronous anymore 
Implement "proper" DiskCache syncing
 2023-09-11 01:25:16 +03:00
Bananymous
82b049204d Kernel: Print stack trace on isr 2023-09-11 01:20:55 +03:00
Bananymous
aa59142bfa Kernel: Fix ext2 file write 2023-09-11 01:20:39 +03:00
Bananymous
202c38a65a Kernel: Improve open() POSIX compatability 
Also rename Process::sys_creat -> create_file since it is not
actually a syscall and only used by open as a healper.
 2023-09-10 00:31:42 +03:00
Bananymous
720bc418a6 All: Clear lines with only whitspace in them 2023-09-10 00:31:42 +03:00
Bananymous
d77f455065 Kernel: Add basic ZeroDevice to /dev/zero 2023-09-10 00:31:42 +03:00
Bananymous
7e08f0fb66 Kernel: Start work on making inodes more thread safe 
All inode operations are now locked and thread blocked
 2023-09-10 00:31:42 +03:00
Bananymous
9e4a87021c Kernel: Fix directory permissions 
We did not care about X bit in directories and instead used only the
R bit for search/read.
 2023-09-08 11:46:53 +03:00
Bananymous
5887f6bcaa Kernel: Ext2 directories can allocate new blocks if needed 2023-09-08 10:29:26 +03:00
Bananymous
5d67559e33 Kernel: Fix bug in disk writing 
I have used two weeks in locating a bug in my ext2 implementation
while the bug was actually in disk write. If you called write_sectors
on disk it would write the first sector_size bytes repeatedly to all
asked sectors and this corrupted the disk...
 2023-09-08 02:43:08 +03:00
Bananymous
e631eb7a7a Kernel: Fix possible out-of-bounds disk access in ext2 2023-09-08 02:42:53 +03:00
Bananymous
7c11ea3694 Kernel: Cleanup TTY::read() 2023-09-07 15:27:21 +03:00
Bananymous
c1fd341698 Kernel: TTY now reads input byte by byte 
This allows correct behaviour for character streams / keyboard
handling. Serial input can now send working ^C :D
 2023-09-07 15:06:27 +03:00
Bananymous
0deab1be51 Kernel: Remove bitmap debug printing from ext2 inode allocation 2023-09-06 01:25:09 +03:00
Bananymous
5a623adaa6 Kernel: Correct inode links count 2023-09-05 14:46:56 +03:00
Bananymous
ddd36af0f1 Kernel: Add /dev/tty symlink that targets the current tty 2023-09-05 01:07:52 +03:00
Bananymous
35fd30ee29 Kernel: Implement basic RamSymlinkInode 2023-09-05 01:07:52 +03:00
Bananymous
4a0652684c Kernel: You can now read serial output from the /dev/ttyS* 2023-09-05 01:07:52 +03:00
Bananymous
33c81f00b7 Kernel: Receive interrupts for COM1 and COM2 input 
The input has to still be attached to terminal
 2023-09-04 22:07:40 +03:00
Bananymous
55714b90cd Kernel: Rework whole Terminal structure 
Serial monitors can now be used as a output. This requires editing
init code for the stdio opening. Serial input is not supported, so qemu
still needs graphical window for ps/2 keyboard.
 2023-09-04 19:34:18 +03:00
Bananymous
9b47603a1d Kernel: Make serial devices to their own class 2023-09-04 14:57:05 +03:00
Bananymous
42b85dc33b Kernel: Add ANSI support for hiding/showing cursor to TTY 2023-09-04 14:30:09 +03:00
Bananymous
044378cfa3 Kernel: Add basic nanosleep, only millisecond percision 2023-09-04 12:59:50 +03:00
Bananymous
f1d4d5f995 Kernel: Add basic support for O_NONBLOCK (only for tty) 2023-09-04 12:57:52 +03:00
Bananymous
19d0fb6fcd Kernel: add basic fcntl() with couple of commands and no validation 2023-09-04 12:57:09 +03:00
Bananymous
7933265095 Kernel: Split ext2 implementation to multiple files 2023-09-01 15:10:23 +03:00
Bananymous
d810644018 Kernel: Start work on writable ext2 filesystem 2023-08-31 23:40:31 +03:00
Bananymous
a7bfc1c2ec Kernel: Add missing ififo() to Inode::Mode 2023-08-31 21:38:31 +03:00
Bananymous
65501837b7 Kernel: Stack trace dumping validates pointers before using them 2023-08-31 21:36:23 +03:00
Bananymous
cbd2519b9a Kernel: better handle kernel errors 2023-08-29 00:13:21 +03:00
Bananymous
e8a73f9696 BuildSystem: use -a with rsync 
This allows cmake to not rebuild whole project every time
 2023-08-28 11:38:17 +03:00
Bananymous
b05cf9ef09 BuildSystem: Base sysroot is now distributed as a tar ball 
This allows file and directory permissions work as intended.

cmake is now filled with 'sudo' but with sudo timeout this should be
fine.
 2023-08-23 10:38:21 +03:00
Bananymous
ef1077fd7b Kernel: kill() with negative pid actually matches pgid 2023-08-22 14:54:15 +03:00
Bananymous
f1ba5c7e0f Kernel: Process keeps track if forked process has called exec*() 2023-08-22 14:53:46 +03:00