b924c85669
Kernel: DiskCache now requires sync to be called from kernel thread
...
This disables the scenario where user interrupts sync operation
possibly leaving the syncing in invalid state.
2023-09-27 00:32:13 +03:00
09c1aa44d8
Kernel: Allow creationg of empty processes and manual registration
...
You can now create kernel processes without any threads, add the
needed threads and only then register the process and its threads
to the scheduler.
2023-09-27 00:29:45 +03:00
1d470fb5ba
Kernel: All syscalls now validate users pointers
...
We now validate pointers passed by the user, to forbid arbitary
memory read/write. Now the user is only allowed to pass in pointers
in their own mapped memory space (or null).
2023-09-25 22:07:12 +03:00
b4e4f7a6cc
Kernel: Print more detailed output on ISR
2023-09-25 20:33:07 +03:00
55d30a7cc3
Kernel: Ext2 inodes are now stored in cache
...
This allows faster inode access and ensures working inodes when
opened in multiple places.
2023-09-25 20:31:40 +03:00
b62186441b
BAN: Implement basic WeakPtr
...
This can be constructed from classes that inherit from Weakable
2023-09-25 19:43:10 +03:00
8caba1e774
Kernel: Ext2 filesystem now holds 10 preallocated block buffers
...
Inodes can query blocks from this buffer. This allows allocation of
blocks to not fail during normal operations. Also less stress on
kmalloc.
2023-09-25 14:32:25 +03:00
7bdb428938
Kernel: Fix ext2 block allocation
...
Redo ext2 block allocation. This is now much "cleaner" although
I'm not too fond of the macros.
2023-09-25 13:17:44 +03:00
3ea707c0e7
BuildSystem: Optimize image creation
...
We now use truncate to create disk image, since it doesn't require
writing zeroes to full disk. I also removed creation of third
partition as this was not currently used.
2023-09-25 13:15:55 +03:00
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
8b2bb95b81
Kernel: VirtualRange doesn't store physical addresses of pages
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This was unnecessarry allocation, since the page table allready
contains virtual address -> physical address mappings.
2023-09-24 01:29:34 +03:00
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
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
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
fe2dca16f0
Kernel/LibC: add flag to enable/disable sse support
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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
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
fee3677fb9
Kernel/LibC: add mmap for private anonymous mappings
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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
4818c6e3dd
BuildSystem: Add cmake target for debugging qemu
2023-09-22 17:20:35 +03:00
971eb737c1
BAN: Fix LinkedList::pop_back()
2023-09-22 17:20:35 +03:00
9a3286ad57
Kernel: Add constexpr conditional debug prints
2023-09-22 17:20:35 +03:00
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
8136248a67
Kernel: Fix timer includes
2023-09-22 17:20:35 +03:00
0d67e46041
Kernel: Add config read/write api to PCI
2023-09-22 17:20:35 +03:00
bc1087f5a7
Kernel: Add pointer validation API to page table
2023-09-22 17:20:35 +03:00
3a9c6fc51a
General: remove linecount.sh
2023-09-22 17:20:35 +03:00
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
14a608effd
1000th COMMIT: Kernel: Add basic E1000 driver
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This driver is only capable to read mac address and enable and read
link status
2023-09-22 17:20:28 +03:00
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
b0c22b61ec
Kernel: Writes to disk are not synchronous anymore
...
Implement "proper" DiskCache syncing
2023-09-11 01:25:16 +03:00
82b049204d
Kernel: Print stack trace on isr
2023-09-11 01:20:55 +03:00
aa59142bfa
Kernel: Fix ext2 file write
2023-09-11 01:20:39 +03:00
c55bb77ff5
BuildSystem: remove install-usb.sh since it is not used
...
This was dangerous script since it rewrote /dev/sda
2023-09-10 01:20:44 +03:00
9b4e2e1e21
Kernel: Add basic dd command
...
This only supports if, of, bs, count and status=progress
2023-09-10 01:19:47 +03:00
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
720bc418a6
All: Clear lines with only whitspace in them
2023-09-10 00:31:42 +03:00
d77f455065
Kernel: Add basic ZeroDevice to /dev/zero
2023-09-10 00:31:42 +03:00
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
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
5887f6bcaa
Kernel: Ext2 directories can allocate new blocks if needed
2023-09-08 10:29:26 +03:00
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
e631eb7a7a
Kernel: Fix possible out-of-bounds disk access in ext2
2023-09-08 02:42:53 +03:00
64ff4c232a
BuildSystem: Cleanup disk image creation
2023-09-08 02:41:39 +03:00
0ec4f970f7
LibC: fix fread implementation
...
fread() should read until either size*nitems bytes are read or eof
is reached.
2023-09-07 16:00:47 +03:00
afe95be42f
Shell: Clean exit on ^D and use getchar()
...
Use getchar() instead of fread(&ch, 1, sizeof(char), stdin). This
is much cleaner.
2023-09-07 15:51:05 +03:00
14ac1c9904
Init: use read instead of fread()
...
This allows actually correct behaviour. My fread implementation is
flawed. It should not return on '\n'
2023-09-07 15:47:59 +03:00
7c11ea3694
Kernel: Cleanup TTY::read()
2023-09-07 15:27:21 +03:00
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
0deab1be51
Kernel: Remove bitmap debug printing from ext2 inode allocation
2023-09-06 01:25:09 +03:00
5a623adaa6
Kernel: Correct inode links count
2023-09-05 14:46:56 +03:00
4363118d9d
Snake render grid lines without extra space after last '#'
2023-09-05 14:35:53 +03:00
Bananymous