Bananymous/banan-os
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Author SHA1 Message Date
Bananymous
8621d8a155 BuildSystem: Rework calling qemu 
I change always manually the serial/graphical. When running cmake
you can define variable QEMU_ACCEL that will be used as accelerator.

Also ninja has the following targets for running qemu
  1. qemu:            Run graphical qemu environment
  2. qemu-nographic:  Run qemu without graphical screen. You should
                      select 'serial only' from grub menu.
  3. qemu-debug:      Run qemu without accelerator and interrupt
                      debugger.
 2023-09-27 13:49:01 +03:00
Bananymous
1c26a402b0 Kernel: Add missing TRY() to font loading 2023-09-27 00:49:53 +03:00
Bananymous
b573701625 Sync: Add some argument parsing to sync(1) 
You can specify --block to make the program wait until sync is
complete.
 2023-09-27 00:37:23 +03:00
Bananymous
a69e5fb288 LibC: add syncsync() to unistd.h 
This is my own WELL NAMED (:D) function that takes a paramemeter
to make the sync operation synchronous.
 2023-09-27 00:35:36 +03:00
Bananymous
1e6930a3bc Kernel: SYS_SYNC now schedules sync to happen soon 
You can pass non-zero argument to the syscall to block until the
sync has finished.
 2023-09-27 00:34:00 +03:00
Bananymous
11db49e2d3 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
Bananymous
c33e658f98 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
Bananymous
22252cfcf0 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
Bananymous
976114fde1 Kernel: Print more detailed output on ISR 2023-09-25 20:33:07 +03:00
Bananymous
9d55cf1d80 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
Bananymous
ef68e12125 BAN: Implement basic WeakPtr 
This can be constructed from classes that inherit from Weakable
 2023-09-25 19:43:10 +03:00
Bananymous
669b2ace4e 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
Bananymous
0e67c6318b 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
Bananymous
959fb64752 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
Bananymous
ffa80d0466 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
e7ca83ecb2 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
f6261e5dc9 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
d1bbbf48f6 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
3ba15b41a3 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
7a7c5e433e 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
6bb2c80bdd 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
af4af1cae9 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
b9c779ff7e BuildSystem: Add cmake target for debugging qemu 2023-09-22 17:20:35 +03:00
Bananymous
2a469241b2 BAN: Fix LinkedList::pop_back() 2023-09-22 17:20:35 +03:00
Bananymous
83b165ebb0 Kernel: Add constexpr conditional debug prints 2023-09-22 17:20:35 +03:00
Bananymous
c5f9f0c307 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
9d827037ca Kernel: Fix timer includes 2023-09-22 17:20:35 +03:00
Bananymous
58506c5bd1 Kernel: Add config read/write api to PCI 2023-09-22 17:20:35 +03:00
Bananymous
dd0b8c4140 Kernel: Add pointer validation API to page table 2023-09-22 17:20:35 +03:00
Bananymous
d1183f0bf6 General: remove linecount.sh 2023-09-22 17:20:35 +03:00
Bananymous
11717f90c1 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
a740bf8df4 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
63dc2b6aa6 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
eee0537053 Kernel: Writes to disk are not synchronous anymore 
Implement "proper" DiskCache syncing
 2023-09-11 01:25:16 +03:00
Bananymous
7ec860a3d4 Kernel: Print stack trace on isr 2023-09-11 01:20:55 +03:00
Bananymous
9b9a6b2cfc Kernel: Fix ext2 file write 2023-09-11 01:20:39 +03:00
Bananymous
f178fa6d5b 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
Bananymous
9ebf29991d Kernel: Add basic dd command 
This only supports if, of, bs, count and status=progress
 2023-09-10 01:19:47 +03:00
Bananymous
8fb5f97a18 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
921d95d18f All: Clear lines with only whitspace in them 2023-09-10 00:31:42 +03:00
Bananymous
1fcf122c50 Kernel: Add basic ZeroDevice to /dev/zero 2023-09-10 00:31:42 +03:00
Bananymous
dd9af56e21 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
39a5c52088 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
660f7cbfeb Kernel: Ext2 directories can allocate new blocks if needed 2023-09-08 10:29:26 +03:00
Bananymous
1abf54d652 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
3750d29b2b Kernel: Fix possible out-of-bounds disk access in ext2 2023-09-08 02:42:53 +03:00
Bananymous
e75522a005 BuildSystem: Cleanup disk image creation 2023-09-08 02:41:39 +03:00
Bananymous
5972c73950 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
Bananymous
41757b5f6c 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
Bananymous
c33c7f8b3b 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