ed18d86f08
Kernel: Fix spinlock unlocking in x86_64
...
Spinlock unlock used a 64 bit write on 32 bit integer, overwriting
some random memory. This caused some really hard to find bugs
2023-03-08 02:41:44 +02:00
df8811fc1a
Kernel: Remove "a" from .section .text
2023-03-07 01:57:09 +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
e480f9c195
BAN: RefCounted<> frees count if object allocation fails
2023-03-06 13:17:04 +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
e3a71289c0
BAN: fix LinkedList back/front functions
2023-03-06 01:46:52 +02:00
10ef3c6a54
LibC: add declarations for malloc and free
2023-03-04 02:59:48 +02:00
f1f5e76636
Kernel: kmalloc requires alignment to be power of two
2023-03-02 22:31:13 +02:00
81cb342c12
BAN: Remove #error macros
2023-03-02 22:30:32 +02:00
53ec66ff86
LibC: strerror now always uses a buffer to which it copies the string
2023-03-02 22:13:08 +02:00
1c146ba1a5
BAN: remove aligned alloc from ban
2023-03-02 22:12:42 +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
4d8bdec16d
Kernel: fix i386 MMU
2023-03-02 00:47:29 +02:00
7fcbb869e1
Kernel: Initialize GDT in kernel code
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We dont use the boot GDT only while booting
2023-03-01 21:21:56 +02:00
7f8cad83b1
Kernel: x86_64 boot script now makes GDT with null, kernel code and data
2023-03-01 21:21:56 +02:00
ba8c4dbc7f
Kernel: panic now disables interrupts as the first thing
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
048a2ebb95
ALL: Disk image's root partition now has name 'banan-root'
2023-02-26 02:59:33 +02:00
40cf68a22a
Kernel: Shell now sleeps through Scheduler and doesn't 'hlt'
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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
dc1a4614fb
BAN: Errors are now moved around with TRY()
2023-02-26 02:54:34 +02:00
9439582154
BAN: Add ASSERT_NOT_REACHED()
2023-02-26 02:53:58 +02:00
34f9912a1d
Kernel: Add IO functions inl, outl, and ins{b,w,l} to read into buffer
2023-02-24 12:39:38 +02:00
80f9428337
Kernel: Fix prefs font for 32 bit
2023-02-24 03:19:54 +02:00
6c1f0d1dc8
BAN: Add big_endian_to_host in Math
2023-02-23 15:58:32 +02:00
5cd97e44e2
LibC: Add strcmp and strncmp
2023-02-23 15:57:33 +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
c9ea22f5e2
Kernel: IDT now confirms that it allocated succesfully
2023-02-22 21:48:40 +02:00
0e77b4dc4e
BAN: You can now transform little endian data to host endian
2023-02-22 21:47:22 +02:00
f98f3d851c
BAN: HashMap uses LinkedList as bucket, so kmalloc_fixed can be used
2023-02-22 21:46:41 +02:00
a845f8696c
BAN: Add function to decode utf-8 encoded strings
...
works for 3 byte unicode characters
2023-02-22 21:45:26 +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
4afc4660a4
BAN: Basic containers have shrink_to_fit() method
...
I also chaged the default memory allocation increase from 1.5 to 2
2023-02-22 02:07:05 +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
9aab67fed8
BAN: make all Math functions inline constexpr
2023-02-22 01:17:56 +02:00
10b6d51522
BAN: implement Variant<> for two types
2023-02-22 01:17:21 +02:00
afd4b7a184
BAN: HashMap now copies size when copying :D
2023-02-22 01:16:07 +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
fbc17eb6dd
BAN: Implement basic HashMap
2023-02-20 16:00:51 +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
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We support now ext2 directory listing. File reading is not yet supported.
2023-02-20 01:46:00 +02:00
Bananymous