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Code Pull Requests Activity
690 Commits 1 Branch 0 Tags
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Commit Graph

467 Commits

Author SHA1 Message Date
Bananymous
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
Bananymous
51e299c7e3 Kernel: Shell now has exit() command 2023-04-19 12:53:09 +03:00
Bananymous
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
Bananymous
d74ce4950c Kernel: We now launch Shell again on boot 
Adding this just before push :D
 2023-04-19 00:41:24 +03:00
Bananymous
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
Bananymous
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
Bananymous
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
Bananymous
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
Bananymous
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
Bananymous
821d065eba Kernel: Handle some Heap edge cases 2023-04-18 10:18:15 +03:00
Bananymous
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
Bananymous
1aac3a0425 Kernel: Heap implementation can now give free pages from all of RAM 2023-04-18 10:18:15 +03:00
Bananymous
a4568f9263 Kernel: Remove unused file 2023-04-18 10:18:15 +03:00
Bananymous
a180e72b6f Kernel: Start working on heap 2023-04-18 10:18:15 +03:00
Bananymous
2de64b592d Kernel: Kmalloc now has its memory statically allocated 
We don't use the memory map given by bootloader since this automatically
maps the memory to a available space.
 2023-04-18 10:18:15 +03:00
Bananymous
9c0f3dd996 Kernel: Move kmalloc and MMU to Memory directory 2023-04-18 10:18:15 +03:00
Bananymous
079df39ca8 LibELF: Start implementing elf library 2023-04-18 10:18:15 +03:00
Bananymous
fe87c08a02 LibC: add needed stubs to build executables with our compiler 2023-04-12 17:53:02 +03:00
Bananymous
8637959289 Kernel: We can create basic userspace processes 
These are still allocated on the kernel memory
 2023-04-12 17:52:36 +03:00
Bananymous
6be53668b9 Kernel: Scheduler can now terminate processes threads 2023-04-12 17:49:04 +03:00
Bananymous
d1b7249803 Kernel: Debug::dump_stack_trace now 'detects' repeating function 2023-04-12 01:32:41 +03:00
Bananymous
ff7c50c627 Kernel: kmalloc does not check for corruptiong unless it cannot allocate 
We 'don't care' if kmalloc is corrupted unless it prevents us from
allocating memory. Scheduler should be catching stack overflows either
way and is much more efficient
 2023-04-12 00:24:02 +03:00
Bananymous
12779cdef8 Kernel: Threads now use only 4 KiB stack :) 2023-04-12 00:22:08 +03:00
Bananymous
f5e676b2b7 Kernel: Fix TTY spinlock usage 2023-04-12 00:20:04 +03:00
Bananymous
8e5e5f819f Kernel: Shell TTY_PRINT is now function instead of macro 
This makes functions uses way less stack
 2023-04-12 00:18:58 +03:00
Bananymous
370a958379 BuildSystem: GCC will now complain on functions with 1 KiB stack 2023-04-12 00:18:06 +03:00
Bananymous
a0bd3dc54f Kernel: kmalloc now detects corruption 
Kmalloc checks if its nodes have corrupted. This was happening
because of stack overflow.
 2023-04-11 23:36:46 +03:00
Bananymous
809eb2fe3e Kernel: Mark Scheduler::start() as noreturn as appropriate 2023-04-11 23:33:20 +03:00
Bananymous
7010d8614f Kernel: kernel doesn't allocate large blocks of data on stack 
We used to allocate 1 KiB blocks on multiple places on stack. This
is a problem, since kernel stack shouldn't have to be too big
 2023-04-11 23:31:58 +03:00
Bananymous
69f13f1896 Kernel: Scheduler will panic if it encounters stack overflow 2023-04-11 23:29:21 +03:00
Bananymous
bdaf7cddcb Kernel: Process now locks the mutex while modifying open files 
This allows processes to be actually removed from the list instead
of dead locking
 2023-04-11 23:28:16 +03:00
Bananymous
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
Bananymous
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
Bananymous
c660df14ec BuildSystem: Fix header copying to sysroot 
We used to copy all headers everytime to sysroot which caused
rebuild of the whole os. Now we use the cmake command
'copy_directory_if_different' which seemed to fix this issue :)
 2023-04-10 21:07:25 +03:00
Bananymous
e704968f96 Kernel: Threads can now be terminated mid execution 2023-04-10 21:07:25 +03:00
Bananymous
32359df939 Kernel: Add small wait in ATA driver before reading/writing 
This allows bochs to boot again
 2023-04-10 21:07:25 +03:00
Bananymous
641ed23380 Kernel: Fix framepointers on started threads 2023-04-10 21:07:25 +03:00
Bananymous
9f977488fa BuildSystem: cmake can now build out libc 
I can't seem to get libc++ build to work...
 2023-04-10 21:07:25 +03:00
Bananymous
7752b02fb7 BuildSystem: remove now obsolete include directories from kernel build 2023-04-07 02:25:47 +03:00
Bananymous
f70cd3ea77 BuildSystem: Cleanup cmake code 
The buildsystem is kind of a mess. I will be writingn build
instructions soon.
 2023-04-06 20:31:10 +03:00
Bananymous
5db5ff069a BuildSystem: you can now build the toolchain with cmake 2023-04-06 00:23:02 +03:00
Bananymous
e84f613c4d Kernel: Shell now somewhat functions again 
I will not be fixing the shell implementation until I get to
userspace
 2023-04-05 11:37:41 +03:00
Bananymous
5db4e5b4d5 Kernel: Fix TTY echo and canonical flag behaviour 2023-04-05 11:35:19 +03:00
Bananymous
b00dd8d68d Kernel: Fix ansi control sequence cursor movement 2023-04-05 03:07:52 +03:00
Bananymous
abbbf7ec15 Kernel: Add tty to process and make termios modifiable 2023-04-05 02:53:28 +03:00
Bananymous
d0b1457f30 Kernel: TTY now supports clearing 2023-04-05 02:04:18 +03:00
Bananymous
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
Bananymous
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
Bananymous
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
Bananymous
28e1497f88 Kernel: add virtual write function to inode 2023-04-03 20:29:07 +03:00