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1960 Commits

Author SHA1 Message Date
Bananymous 6acb86c14b Kernel: MMU keeps track of the current 2023-05-16 00:26:39 +03:00
Bananymous 8ec675cca6 LibC: fix bugs with printf 2023-05-15 22:47:08 +03:00
Bananymous 591d03de95 BAN: add is_arithmetic and is_signed to Traits.h 2023-05-15 20:26:29 +03:00
Bananymous ec316391c5 Kernel: argc is passed as zero to userspace 2023-05-11 18:28:32 +03:00
Bananymous 7543fadfa8 LibC: printf now prints 0 as integer 2023-05-11 18:20:37 +03:00
Bananymous bbaf1223f3 BuildSystem: add helper to create userspace programs 2023-05-11 18:10:06 +03:00
Bananymous 177b205c48 BuildSystem: userspace has cmake target 2023-05-11 16:19:53 +03:00
Bananymous 729ff267d7 LibC: add function declarations to sys/stat.h 2023-05-11 15:11:33 +03:00
Bananymous d9be14e1fb LibC: add function declarations to dirent.h 2023-05-11 01:42:52 +03:00
Bananymous 8a9f9b07e7 LibC: add definitions to math.h 2023-05-11 01:40:42 +03:00
Bananymous c989a01913 LibC: add defines in stdio.h 2023-05-11 01:39:16 +03:00
Bananymous 5188efcc57 LibC: add function declarations to unistd.h 2023-05-11 00:34:03 +03:00
Bananymous c05a5b796b LibC: add function declarations to string.h 2023-05-11 00:34:03 +03:00
Bananymous f0058e67c2 LibC: add function declarations to math.h 2023-05-11 00:34:03 +03:00
Bananymous 508d6311de LibC: define all errnos and strerror{name,desk}_np 2023-05-11 00:34:03 +03:00
Bananymous 7c6bf40d0d LibC: add function declarations to time.h 2023-05-11 00:34:03 +03:00
Bananymous a74343c589 LibC: add more types to sys/types.h 2023-05-11 00:33:53 +03:00
Bananymous d188576ef3 LibC: Add dummy signal.h 2023-05-10 23:20:27 +03:00
Bananymous d922c5e1d0 LibC: add toupper, tolower in ctype.h 2023-05-10 23:13:56 +03:00
Bananymous 0adf24fcad LibC: Add dummy setjmp.h 2023-05-10 23:00:53 +03:00
Bananymous 80e13965d9 LibC: Add dummy locale.h 2023-05-10 22:58:07 +03:00
Bananymous 36707ec87a LibC: implement printf conversions e, E, f, F 2023-05-10 22:36:03 +03:00
Bananymous 5f89f083a2 LibC: add math.h with floorl 2023-05-10 22:35:42 +03:00
Bananymous 0d9422ead8 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 cae0a1cc60 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 480d92fce5 LibC: add better error string support 2023-05-10 02:22:31 +03:00
Bananymous 49fe3d0d4f 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 ff2e2937a5 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 0cc1fb53d5 LibC: Fix bug in *printf 2023-05-09 20:30:12 +03:00
Bananymous 512be884ed Kernel: Add barebones GeneralAllocator for >4096B 2023-05-08 22:10:49 +03:00
Bananymous f1667b398a 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 b0ec0f1a1a 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 05046d6e93 BAN: Error uses 64 bit error codes 2023-05-07 02:09:52 +03:00
Bananymous 054c5450df LibC: syscall() now returns -1 on error and updates errno 2023-05-07 01:51:39 +03:00
Bananymous 12e42f40c5 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 890aa9aa15 BuildSystem: linker -O2 doesn't do anything? hopefully 2023-05-06 19:58:08 +03:00
Bananymous bcfd838131 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 9c07add00f Kernel: Invalid physical addresses from heap are specified now by 0 2023-05-06 17:34:22 +03:00
Bananymous ab8aac7dcf Kernel: GDT tss selector is now 16 bit value 2023-05-06 17:34:22 +03:00
Bananymous f36b94d039 Kernel: MMU can now provide info about virtual address space 2023-05-06 17:34:22 +03:00
Bananymous 92daa831d1 Kernel: ISRs now print pid and tid 2023-05-06 00:10:15 +03:00
Bananymous e7a170c89f Kernel: 64 bit MMU now properly identity maps kernel 2023-05-05 14:19:28 +03:00
Bananymous 3c5d3eb8ad 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 55bb0084aa 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 acf5660090 Kernel: Add set_tss_stack() to 32 bit 2023-04-28 14:44:23 +03:00
Bananymous 9d7530662f Kernel: dprintln file name is now relative 
This makes file names much shorter
 2023-04-28 14:43:19 +03:00
Bananymous 9cf09165b5 BAN: Add is_power_of_two to Math functions 2023-04-28 14:42:49 +03:00
Bananymous e1a6e7c3ac LibC: add proper stdlib.h header 
Function declarations taken from the posix specifications
 2023-04-27 15:14:03 +03:00
Bananymous 3537d53d5c LibC: add link to posix stdio.h 2023-04-27 14:16:25 +03:00
Bananymous c20ba3064d Userspace: Simple stdio test 2023-04-25 14:50:26 +03:00