85039020d3
Kernel: argc is passed as zero to userspace
2023-05-11 18:28:32 +03:00
7eb43990ad
BuildSystem: userspace has cmake target
2023-05-11 16:19:53 +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
0deda83d05
BuildSystem: linker -O2 doesn't do anything? hopefully
2023-05-06 19:58:08 +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
bc35a561d3
Kernel: GDT tss selector is now 16 bit value
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
6262e41de1
Kernel: ISRs now print pid and tid
2023-05-06 00:10:15 +03:00
0cb53efa01
Kernel: 64 bit MMU now properly identity maps kernel
2023-05-05 14:19:28 +03:00
4e859bedbc
Kernel: TTY input process is now single instance
...
Process sends key events to the active (currently only) tty
2023-04-30 16:11:14 +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
e48acbb03b
Kernel: Add set_tss_stack() to 32 bit
2023-04-28 14:44:23 +03:00
d1155c968e
Kernel: dprintln file name is now relative
...
This makes file names much shorter
2023-04-28 14:43:19 +03:00
46dcf98fc1
Kernel: Scheduler updates tss stack on thread execution
2023-04-25 14:49:50 +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
175f07cd2f
Kernel: Fix bug in Process::create_userspace()
...
We used to write more than we needed to. This could lead to unwanted
page faults
2023-04-25 13:21:28 +03:00
77c83e5552
Kernel: Fix possible dead lock in Process::read()
2023-04-23 14:46:18 +03:00
b15deb420f
LibC: Write mostly functioning stdio
2023-04-23 14:32:37 +03:00
b38989d594
Kernel: Add ASSERTion to Process::exit()
...
This is just so I don't forget that exit can currently only
be called on the executing thread itself
2023-04-22 19:05:27 +03:00
79e6de325f
Kernel: Process can now load 32 bit elf files on i386
...
We are page faulting on process exit but I'm investigating
the reason.
2023-04-22 19:03:30 +03:00
4f8f3ddc29
Kernel: Fix 32 bit MMU
2023-04-22 18:22:39 +03:00
82a1a29260
Kernel: More proper paging in Elf loading
2023-04-22 18:17:44 +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
8001493df3
Kernel: Fix some deadlocks in the Process
2023-04-22 16:19:57 +03:00
8c1f5bfe1e
Kernel: Remove obsolete userspace stuff from kernel
2023-04-22 15:38:45 +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
d9068eebb5
Kernel: kmalloc does not dump stack trace
...
dump_stack_trace() page faults and i dont feel like debugging this
now :)
2023-04-21 13:45:13 +03:00
3ad0d2328d
Kernel: Don't call 'cli' on interrupt
...
This is automatically done because we are using interrupt gates
in the IDT
2023-04-21 11:18:08 +03:00
3f2beb4547
Kernel: Fix syscall return value in 32 bit
2023-04-21 11:08:02 +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
a159c980ee
Kernel: kmalloc will always print debug on failed alloc
2023-04-19 18:05:01 +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
cd03a95128
Kernel: Shell fix file reading
...
We were reading 8 bytes at a time instead of the 1024 we were
supposed to :DD
2023-04-19 14:09:23 +03:00
51e299c7e3
Kernel: Shell now has exit() command
2023-04-19 12:53:09 +03:00
6f65453fd4
Kernel: Fix Process::exit() and where it is called from
...
cksum doesn't seem to work anymore on big files. I have to look
into this. It locks up after couple of seconds...
2023-04-19 12:52:21 +03:00
d74ce4950c
Kernel: We now launch Shell again on boot
...
Adding this just before push :D
2023-04-19 00:41:24 +03:00
