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
f33e78882e
Kernel: Add argc and argv to process entry
2023-05-16 00:27:49 +03:00
0ff067bdb7
Kernel: Add MMUScope
...
This disables interrupts and loads specified mmu for the
scope it lives in
2023-05-16 00:26:39 +03:00
31ac3260ed
Kernel: MMU keeps track of the current
2023-05-16 00:26:39 +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
2d0a5a9e15
Kernel: FixedWidthAllocator operates on MMU
...
Instead of Process* we use MMU& in FixedWidthAllocator since it is
everything it actually needs :)
2023-05-08 00:06:56 +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
b65cd1d09b
Kernel: Invalid physical addresses from heap are specified now by 0
2023-05-06 17:34:22 +03:00
06bc807e34
Kernel: MMU can now provide info about virtual address space
2023-05-06 17:34:22 +03:00
0cb53efa01
Kernel: 64 bit MMU now properly identity maps kernel
2023-05-05 14:19:28 +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
58ce907327
Kernel: Usespace threads now have an interrupt stack
2023-04-25 14:49:18 +03:00
6ecc8cac0e
Kernel: TSS stack can be set after initialization
2023-04-25 14:48:12 +03:00
bd95f17426
Kernel: Stack pointer out of bounds now panics with a message
2023-04-25 13:40:55 +03:00
b15deb420f
LibC: Write mostly functioning stdio
2023-04-23 14:32:37 +03:00
8a5608df91
Kernel: d{print,warn,error}ln(...) now has a spinlock
2023-04-22 17:58:51 +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
be14a6c239
Kernel: Stack pointer is validated when updated
...
This allows us not to fail stack pointer when in syscall since
interrupts use their own stack
2023-04-21 10:40:24 +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
b3eeb6412f
Kernel: Add some bareboness functionality to map virtual addresses
2023-04-19 23:51:36 +03:00
d38470c8e2
Kernel: Rename MMU::{un,}allocate... to MMU::{un,}map
...
This is more appropriate name for the behaviour :D
2023-04-19 21:50:30 +03:00
4475e3e184
Kernel: ATAController will fail to initialize in native mode
2023-04-19 17:29:36 +03:00
cf0320e47d
Kernel: PCI devices now report their prog_if
2023-04-19 16:43:05 +03:00
59a682c720
Kernel: init2 is now launched as a process instead of thread
...
Also only process can now add threads to scheduler. Nobody should
have raw access to scheduler and everything should be through
Process::current() or irqs (reschedules)
2023-04-19 00:39:06 +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
5494e2c125
Kernel: Heap allows us to take free pages.
...
The API is kinda weird and will probably be reworked in near future
but this will work for now :)
2023-04-18 10:18:15 +03:00
aba82564f5
Kernel: Panic wont print stacktrace if it has already paniced
...
This prevents stack trace dump to panic and loop
2023-04-18 10:18:15 +03:00
93abee9c7c
Kernel: Map all ACPI tables on initialization
...
This makes their usage much easier and less error prone
They won't mapped be processes when we get to there, so this won't be
a problem
2023-04-18 10:18:15 +03:00
2614437ba0
Kernel: Reorder boot initialization
...
We now create the TTY as soon as possible so we can show console
output without serial port.
2023-04-18 10:18:15 +03:00
1aac3a0425
Kernel: Heap implementation can now give free pages from all of RAM
2023-04-18 10:18:15 +03:00
a180e72b6f
Kernel: Start working on heap
2023-04-18 10:18:15 +03:00
9c0f3dd996
Kernel: Move kmalloc and MMU to Memory directory
2023-04-18 10:18:15 +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
6be53668b9
Kernel: Scheduler can now terminate processes threads
2023-04-12 17:49:04 +03:00
12779cdef8
Kernel: Threads now use only 4 KiB stack :)
2023-04-12 00:22:08 +03:00
809eb2fe3e
Kernel: Mark Scheduler::start() as noreturn as appropriate
2023-04-11 23:33:20 +03:00
8d6db168d6
Kernel: remove message from BAN::Error
...
We don't store the error message anymore in BAN::Error.
Instead we store a error code that can be mapped into a string.
This allows BAN::Error to only take 4 bytes instead of 128.
We should also make some kernel initialization just panic instead
of returning errors since they are required for succesfull boot
anyway.
2023-04-11 23:25:21 +03:00
2fabe1949c
BAN: Move RefPtr to its own file and create New.h
...
New.h contains definitions for placement new operators and
BAN::allocator and BAN::dealloctor
2023-04-10 21:07:25 +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
a423cd8bb3
Kernel: Add partial support for shell
...
We don't handle arrow keys, and the tty does not know how to clear
the screeen :D
2023-04-05 01:30:58 +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
