4da1d6fd27
Kernel: Implement Process::exec()
2023-05-31 20:56:29 +03:00
909e847369
Kernel: Move userspace entry functions to Process instead of Thread
2023-05-31 19:31:10 +03:00
e640344d7a
Kernel: Rename MMU to PageTable
...
This is more descriptive name for what it actually represents
2023-05-29 21:06:09 +03:00
7151bb86a8
Kernel/LibC: opening standard files is done in libc
2023-05-29 20:21:19 +03:00
6fdbe6f9c2
Kernel: Add bareboness fork() function
2023-05-28 18:08:49 +03:00
0129619d9a
Kernel: Processes and Threads use VirtualRange memory allocations
2023-05-28 17:48:34 +03:00
b847d7dfd5
Kernel: MMU::get() is now MMU::kernel
...
MMU is can now be locked with RecursiveSpinLock.
Scheduler now has get_current_tid() that works before the Scheduler
is initialized. This allows RecursiveSpinLock usage early on.
2023-05-28 16:18:18 +03:00
9e0abbc2f0
Kernel: Add bareboness possibility to set termios
2023-05-26 22:31:21 +03:00
4a4a3bf184
Kernel/LibC: move file offset back to kernel
...
This makes keeping track of offsets easier and more proper
2023-05-26 22:31:21 +03:00
53f4b5a9da
LibC: add function declarations to sys/stat.h
2023-05-11 15:11:33 +03:00
1cf7ef3de6
Kernel: Remove offset from OpenFileDescriptor
...
This is now handled on the libc side. There might be reasons to
have it in kernel side, but for simplicity's sake I'm moving it
to libc for now :)
2023-05-09 20:31:22 +03:00
812e61ca70
Kernel: Add barebones GeneralAllocator for >4096B
2023-05-08 22:10:49 +03:00
f32d594879
Kernel: We add FixedWidthAllocators on demand
...
On SYS_ALLOC we will add a new FixedWidthAllocator if the old ones
are already full or we don't have one with proper size. This allows
arbitary number of allocations as long as you have enough memory
available :)
Next I will be writing a general allocator for allocations larger
than 4096 bytes which should make SYS_ALLOC syscall complete :)
2023-05-07 23:57:01 +03:00
2fe9af7165
Kernel/LibC: add free function for FixedWidthAllocator
...
I have to rework the syscall API and allocators in process. For
now this works well enough :)
2023-05-07 01:21:50 +03:00
ff5bcd4416
Kernel: Add basic fixed width allocator for userspace
...
We have to move process stacks to the general heap and maybe map
kernel to higher half.
2023-05-06 19:58:08 +03:00
f139fc2229
Kernel: namespace and function renames
...
MMU moved to namespace kernel
Kernel::Memory::Heap moved to just Kernel
MMU::map_{page,range} renamed to identity_map_{page,range}
Add MMU::get_page_flags
2023-04-28 14:48:38 +03:00
b15deb420f
LibC: Write mostly functioning stdio
2023-04-23 14:32:37 +03:00
3f1c0ec91b
Kernel: Process now frees up its pages on destruction
2023-04-22 16:54:46 +03:00
1406a75a92
Kernel: Cleanup process creation for userspace
2023-04-22 16:51:50 +03:00
ec8b9640e2
Kernel: Usespace programs are now ran through ELF files
...
only 64 bit elf files are supported for now.
2023-04-22 15:35:32 +03:00
3aa0eeb4a3
Kernel: Add barebones per process virtual addresses
...
We now assign every (userspace) process its own MMU which we load
in scheduler. This allows every process to have separate virtual
address space.
This is very hackish implementations but it works for now
2023-04-20 00:45:41 +03:00
7bd4593748
Kernel: Process is not reference counted any more
...
This was not necessary and it made things needlessly complicated
2023-04-19 00:34:18 +03:00
8637959289
Kernel: We can create basic userspace processes
...
These are still allocated on the kernel memory
2023-04-12 17:52:36 +03:00
e704968f96
Kernel: Threads can now be terminated mid execution
2023-04-10 21:07:25 +03:00
abbbf7ec15
Kernel: Add tty to process and make termios modifiable
2023-04-05 02:53:28 +03:00
db076058b9
Kernel: Process can now initialize stdio
...
This allows the use of the fds STD{IN,OUT,ERR}_FILENO
2023-04-05 01:10:25 +03:00
a1100624bf
Kernel: Start work on making tty a file
...
TTY is now a file that you can read from/write to. I still have
to port shell to use this new interface
2023-04-05 00:56:09 +03:00
eef3631a5a
Kernel: Improve locking in Process, VFS and ATAController
...
We used to block on all process access. This meant that shell
reading the keyboard input would block all VFS access making disk
accesses practically impossible. We now block only when it is
necessary :)
2023-03-30 22:02:16 +03:00
88ee35165f
Kernel: Thread is no longer RefCounted
...
This makes developement with Scheduler much easier against compiler
optimizations. I could now remove the pragma GCC optimize stuff.
2023-03-30 19:16:51 +03:00
3e8ab8271d
Kernel: Shell can now mount partitions
2023-03-30 15:06:41 +03:00
770f7716a0
Kernel: Rework processes and VFS so we don't expose inodes
...
Everything is now done through a file descriptor.
2023-03-26 04:30:57 +03:00
d67de70126
Kernel: Process::working_directory() is now thread safe
...
I realized you cannot return a stirng view and it to be thread safe
2023-03-24 01:46:25 +02:00
6f334756c5
Kernel: Create RecursiveSpinLock and add it to Process
...
We now lock every function within Proccess, just to be sure.
Recursive lock allows us to use lock from the same thread even if
we already have the spinlock locked
2023-03-24 01:32:35 +02:00
310713d203
Kernel: Lock process functions instead of the ata controller
...
Process has to use locks at least on some functions so multithreaded
disk io is safe. This seemed to fix corrupted reads from disk
2023-03-24 01:17:39 +02:00
2152b8b95f
Kernel: Add possibiliity to create empty files on Ext2
...
Big rewrite for Ext2 for more easy and optimized code
2023-03-23 22:26:06 +02:00
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
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