Bananymous/banan-os
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Author SHA1 Message Date
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
Bananymous
b8ee77eb78 Kernel: Initial work on new scheduler with queues 
Sleeping is definately broken
 2023-03-08 02:41:44 +02:00
Bananymous
a9acf1f6dc Kernel: PCIDevice is now class with getters and constructor 2023-03-08 02:41:44 +02:00
Bananymous
b4ce438ca7 Build: install-usb now prints write size correctly in MiB 2023-03-08 02:41:44 +02:00
Bananymous
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
Bananymous
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
Bananymous
df8811fc1a Kernel: Remove "a" from .section .text 2023-03-07 01:57:09 +02:00
Bananymous
8a52c0f9d7 Kernel: Cleanup RSDP parsing code 2023-03-07 00:41:13 +02:00
Bananymous
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
Bananymous
e480f9c195 BAN: RefCounted<> frees count if object allocation fails 2023-03-06 13:17:04 +02:00
Bananymous
d5f302a68b Kernel: kmalloc now uses two locks 
One for fixed allocations and one for general allocations
 2023-03-06 12:40:35 +02:00
Bananymous
e3a71289c0 BAN: fix LinkedList back/front functions 2023-03-06 01:46:52 +02:00
Bananymous
10ef3c6a54 LibC: add declarations for malloc and free 2023-03-04 02:59:48 +02:00
Bananymous
f1f5e76636 Kernel: kmalloc requires alignment to be power of two 2023-03-02 22:31:13 +02:00
Bananymous
81cb342c12 BAN: Remove #error macros 2023-03-02 22:30:32 +02:00
Bananymous
53ec66ff86 LibC: strerror now always uses a buffer to which it copies the string 2023-03-02 22:13:08 +02:00
Bananymous
1c146ba1a5 BAN: remove aligned alloc from ban 2023-03-02 22:12:42 +02:00
Bananymous
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
Bananymous
90a7268e5a BAN: Rewrite RefCounted to return ErrorOr 2023-03-02 12:30:11 +02:00
Bananymous
1dd61e93b6 Kernel: Threads cannot take arguments anymore 2023-03-02 01:56:09 +02:00
Bananymous
4d8bdec16d Kernel: fix i386 MMU 2023-03-02 00:47:29 +02:00
Bananymous
7fcbb869e1 Kernel: Initialize GDT in kernel code 
We dont use the boot GDT only while booting
 2023-03-01 21:21:56 +02:00
Bananymous
7f8cad83b1 Kernel: x86_64 boot script now makes GDT with null, kernel code and data 2023-03-01 21:21:56 +02:00
Bananymous
ba8c4dbc7f Kernel: panic now disables interrupts as the first thing 2023-03-01 21:21:56 +02:00
Bananymous
9756de02ef Kernel: MMU now takes flags when allocating pages 2023-03-01 21:21:56 +02:00
Bananymous
7d84f290a1 Kernel: Add lock to Disk reads before I forget 2023-02-26 03:48:11 +02:00
Bananymous
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
Bananymous
048a2ebb95 ALL: Disk image's root partition now has name 'banan-root' 2023-02-26 02:59:33 +02:00
Bananymous
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
Bananymous
04bb08d27f Kernel: Add basic PCI enumeration 2023-02-26 02:56:53 +02:00
Bananymous
dc1a4614fb BAN: Errors are now moved around with TRY() 2023-02-26 02:54:34 +02:00
Bananymous
9439582154 BAN: Add ASSERT_NOT_REACHED() 2023-02-26 02:53:58 +02:00
Bananymous
34f9912a1d Kernel: Add IO functions inl, outl, and ins{b,w,l} to read into buffer 2023-02-24 12:39:38 +02:00
Bananymous
80f9428337 Kernel: Fix prefs font for 32 bit 2023-02-24 03:19:54 +02:00
Bananymous
6c1f0d1dc8 BAN: Add big_endian_to_host in Math 2023-02-23 15:58:32 +02:00
Bananymous
5cd97e44e2 LibC: Add strcmp and strncmp 2023-02-23 15:57:33 +02:00