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960 Commits

Author SHA1 Message Date
Bananymous 31ac3260ed Kernel: MMU keeps track of the current 2023-05-16 00:26:39 +03:00
Bananymous d82c6c2337 LibC: fix bugs with printf 2023-05-15 22:47:08 +03:00
Bananymous 632b699475 BAN: add is_arithmetic and is_signed to Traits.h 2023-05-15 20:26:29 +03:00
Bananymous 85039020d3 Kernel: argc is passed as zero to userspace 2023-05-11 18:28:32 +03:00
Bananymous 1a0fdc5a44 LibC: printf now prints 0 as integer 2023-05-11 18:20:37 +03:00
Bananymous fb1bab7c30 BuildSystem: add helper to create userspace programs 2023-05-11 18:10:06 +03:00
Bananymous 7eb43990ad BuildSystem: userspace has cmake target 2023-05-11 16:19:53 +03:00
Bananymous 53f4b5a9da LibC: add function declarations to sys/stat.h 2023-05-11 15:11:33 +03:00
Bananymous 1d4a6c3a42 LibC: add function declarations to dirent.h 2023-05-11 01:42:52 +03:00
Bananymous 40083e4aa1 LibC: add definitions to math.h 2023-05-11 01:40:42 +03:00
Bananymous bd929bff07 LibC: add defines in stdio.h 2023-05-11 01:39:16 +03:00
Bananymous cd4a0530fa LibC: add function declarations to unistd.h 2023-05-11 00:34:03 +03:00
Bananymous 273fdd2235 LibC: add function declarations to string.h 2023-05-11 00:34:03 +03:00
Bananymous b20f2e8d31 LibC: add function declarations to math.h 2023-05-11 00:34:03 +03:00
Bananymous e756cde2b1 LibC: define all errnos and strerror{name,desk}_np 2023-05-11 00:34:03 +03:00
Bananymous de18d3e64d LibC: add function declarations to time.h 2023-05-11 00:34:03 +03:00
Bananymous 441999ba9f LibC: add more types to sys/types.h 2023-05-11 00:33:53 +03:00
Bananymous dd046b1ace LibC: Add dummy signal.h 2023-05-10 23:20:27 +03:00
Bananymous 926aa238ab LibC: add toupper, tolower in ctype.h 2023-05-10 23:13:56 +03:00
Bananymous 01fa521a03 LibC: Add dummy setjmp.h 2023-05-10 23:00:53 +03:00
Bananymous f31da19266 LibC: Add dummy locale.h 2023-05-10 22:58:07 +03:00
Bananymous 48edc38817 LibC: implement printf conversions e, E, f, F 2023-05-10 22:36:03 +03:00
Bananymous ac12132ac0 LibC: add math.h with floorl 2023-05-10 22:35:42 +03:00
Bananymous 13fabcc1f1 BAN: add pow, log2, log10, log in math 
These are implemented using x86 floating point assembly
 2023-05-10 19:03:33 +03:00
Bananymous 67005a80be LibC: add working f modifier to printf 
This is implementation will write out of bounds if the conversion
takes more than 1024 characters (either super large number or very
big percision).

Also we dont handle NaN and infinity cases
 2023-05-10 15:43:42 +03:00
Bananymous f43bfcb398 LibC: add better error string support 2023-05-10 02:22:31 +03:00
Bananymous d5ce4c9d2c LibC: add probably functional *printf 
I wrote a general printf function that takes an putc function
pointer. We can use this to implement all the printf family
functions. I haven't done thorough testing with this, but it seems
to be functional for the most part
 2023-05-10 02:00:28 +03:00
Bananymous 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
Bananymous 5248a3fe48 LibC: Fix bug in *printf 2023-05-09 20:30:12 +03:00
Bananymous 812e61ca70 Kernel: Add barebones GeneralAllocator for >4096B 2023-05-08 22:10:49 +03:00
Bananymous 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
Bananymous 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
Bananymous c2ad76fe4f BAN: Error uses 64 bit error codes 2023-05-07 02:09:52 +03:00
Bananymous 10d9b72da1 LibC: syscall() now returns -1 on error and updates errno 2023-05-07 01:51:39 +03:00
Bananymous 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
Bananymous 0deda83d05 BuildSystem: linker -O2 doesn't do anything? hopefully 2023-05-06 19:58:08 +03:00
Bananymous 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
Bananymous b65cd1d09b Kernel: Invalid physical addresses from heap are specified now by 0 2023-05-06 17:34:22 +03:00
Bananymous bc35a561d3 Kernel: GDT tss selector is now 16 bit value 2023-05-06 17:34:22 +03:00
Bananymous 06bc807e34 Kernel: MMU can now provide info about virtual address space 2023-05-06 17:34:22 +03:00
Bananymous 6262e41de1 Kernel: ISRs now print pid and tid 2023-05-06 00:10:15 +03:00
Bananymous 0cb53efa01 Kernel: 64 bit MMU now properly identity maps kernel 2023-05-05 14:19:28 +03:00
Bananymous 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
Bananymous 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
Bananymous e48acbb03b Kernel: Add set_tss_stack() to 32 bit 2023-04-28 14:44:23 +03:00
Bananymous d1155c968e Kernel: dprintln file name is now relative 
This makes file names much shorter
 2023-04-28 14:43:19 +03:00
Bananymous 88a2c60065 BAN: Add is_power_of_two to Math functions 2023-04-28 14:42:49 +03:00
Bananymous 5bfcf6783e LibC: add proper stdlib.h header 
Function declarations taken from the posix specifications
 2023-04-27 15:14:03 +03:00
Bananymous 94f8a657f1 LibC: add link to posix stdio.h 2023-04-27 14:16:25 +03:00
Bananymous 7fac2a7526 Userspace: Simple stdio test 2023-04-25 14:50:26 +03:00