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580 Commits

Author SHA1 Message Date
Bananymous 96579b88cf Kernel: Cleanup GPT parsing code 2023-03-23 11:13:14 +02:00
Bananymous 2ec18855f2 Kernel: TTY buffer is resized on font size change 
Shell also has better line wrapping. You still can't visually go
back to previous line, but atleas we now write from the beginning
of the line
 2023-03-22 02:09:22 +02:00
Bananymous b222581d18 Kernel: Reading from fd verifies that file is opened for reading 2023-03-22 01:55:58 +02:00
Bananymous a8e3ee6f19 Kernel: Ext2 directory functions now fail on invalid blocks 
Invalid blocks should only happen while writing to a file and
I think in that case we should just bail out instead of giving
you incomlete inode list or search result.
 2023-03-22 01:55:57 +02:00
Bananymous a083e588ba Kernel: cksum uses now a different crc32_table to match linux 'cksum' 2023-03-22 01:55:21 +02:00
Bananymous 9b500842a0 Kernel: Ext2 can now read from non-block-size aligned offsets 2023-03-21 19:19:17 +02:00
Bananymous b21348379f Kernel: Remove obsolete Ext2FS::ext2_root_inode() 
This was not used by anyone and the cast was wrong anyway
 2023-03-21 18:19:48 +02:00
Bananymous 633055293e Kernel: Remove for_each_block from Ext2 2023-03-21 18:14:02 +02:00
Bananymous ae9d618803 Kernel: Cleanup font parsing 
We use now the LittleEndian<> wrapper for PSF2 header and no more
magic constants in code
 2023-03-20 19:48:08 +02:00
Bananymous 9c744dfc44 BAN: Add wrappers for little/big endian numbers 2023-03-20 19:48:08 +02:00
Bananymous faf1b661bb Kernel: prefs font does not allocate extra buffer 2023-03-20 19:48:01 +02:00
Bananymous 22e45278a2 Kernel: Fix PC Screen font parsing 
I had misread the format and the parsing code was incorrect. I also
changed fonts to store unicode codepoints as 32 bit integers, so
every character can be represented
 2023-03-20 14:52:42 +02:00
Bananymous 43f4657566 Kernel: Font parsing uses Spans now 2023-03-20 13:35:54 +02:00
Bananymous 70f2908056 BAN: Implement basic Span 
This is wrapper over contiguous block of memory e.g. Vector
 2023-03-20 13:34:26 +02:00
Bananymous ef381d0600 BAN: Add iterators to all containers with contiguous memory 2023-03-20 13:26:42 +02:00
Bananymous cfa87526a7 BAN: Add implementation for basic iterator for contiguous memory 2023-03-20 13:15:38 +02:00
Bananymous 39b560fde3 Kernel: Add basic mounting to VFS. 2023-03-19 05:51:25 +02:00
Bananymous 0c582b4490 LibC: add errno ENOTEMPTY 2023-03-19 05:43:40 +02:00
Bananymous 61caf566fc LibC: add errno EEXISTS 2023-03-19 04:17:39 +02:00
Bananymous 76d5364a55 Kernel: Add comparison operator for inodes 2023-03-19 03:34:23 +02:00
Bananymous 5224df321e
Create README.md 2023-03-18 04:05:59 +02:00
Bananymous 7b9c3e9119 Qemu: add kvm acceleration as option 2023-03-18 03:51:10 +02:00
Bananymous b41491e205 Kernel: Add cksum to Shell for file read testing 
I also removed the 'using namespace BAN'
 2023-03-18 03:50:24 +02:00
Bananymous 8236598f9d Kernel: Optimize Ext2 disk reads 
We used to read whole file until we reached the asked offset.
Now we can calculate the appropriate block and read just the asked data.
 2023-03-18 03:47:59 +02:00
Bananymous 1a26a318a4 Kernel: Rework filesystem reading 
We now read from a filesystem to user provided buffer.

Read sizes are determined by read call.

You should now get file descriptors and do reading through Process::current()
 2023-03-17 21:18:41 +02:00
Bananymous ceb53533be LibC: add fcntl.h with some defines 2023-03-17 21:18:41 +02:00
Bananymous e2707b9416 LibC: Add EBADF errno 2023-03-16 16:22:11 +02:00
Bananymous 4493c9bbe6 LibC: Add ENTOSUP errno 2023-03-16 16:03:51 +02:00
Bananymous 1f2ceeb329 Kernel: VFS caches currently open inodes 2023-03-16 15:31:33 +02:00
Bananymous 1292be71b2 BAN: Add FNV hash for strings 2023-03-16 15:11:22 +02:00
Bananymous 1b7625581d Kernel: Add basic concept of Processes 
We now create Shell as a process that has its own threads
 2023-03-16 12:17:04 +02:00
Bananymous c012822d49 BAN: Rename StringView suffix from _sv to sv 2023-03-16 12:15:16 +02:00
Bananymous 8b8e3cbbf0 Kernel/Userspace: Start initial work on userspace and syscalls 2023-03-13 15:32:46 +02:00
Bananymous 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
Bananymous 8dbece9119 Kernel: kmalloc minimum align is forced to s_kmalloc_min_align 2023-03-09 14:37:25 +02:00
Bananymous 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
Bananymous fc58baf54d Kernel: if VFS initialization does not find root, we fail 2023-03-09 02:17:42 +02:00
Bananymous 392da37f9a BAN: Function storage is now aligned as CallableBase and not max_align_t 
On 32 bit architecture the alignment of 16 bytes did not seem to work
on stack variables. UBSan detected whole lot of misaligned functions
from Ext2.cpp. This patch should make function alignment be big enough?
 2023-03-09 01:42:17 +02:00
Bananymous 2e6e0d0ef5 Kernel: FIX ubsan complaining about unaligned addresses for STDHeaders 2023-03-08 22:55:44 +02:00
Bananymous 371dfe8ef3 BAN: Formatter now uses perfect forwarding on its arguments 2023-03-08 21:31:26 +02:00
Bananymous 3ac99f1bd8 BAN: Add more traits and cleanup code 2023-03-08 21:30:21 +02:00
Bananymous 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
Bananymous 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
Bananymous a068d828fe Kernel: ATA reads go through the ata controller and not only device 2023-03-08 03:26:25 +02:00
Bananymous 1dabe7a222 Kernel: More rework on Scheduler 2023-03-08 03:26:25 +02:00
Bananymous e7a577f54a Kernel: fix includes 2023-03-08 03:26:25 +02:00
Bananymous 23b3028e15 Kernel: Rename RefCounted -> RefPtr and implement RefCounted 2023-03-08 03:26:25 +02:00
Bananymous f7ebda3bf1 Kernel: Move interrupt related functions to InterruptController 2023-03-08 03:16:51 +02:00
Bananymous b5673278c4 Kernel: Disable color after Debug::dump_stack_trace 2023-03-08 02:41:44 +02:00
Bananymous 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