The latest updated solved the linking issue but mcopy from grub-mkrescue now fails.

CC src/sys/char.c -> build/obj/src/sys/char.c.o
CC src/sys/utils.c -> build/obj/src/sys/utils.c.o
CC src/drivers/keyboard/keyboard.c -> build/obj/src/drivers/keyboard/keyboard.c.o
CC src/drivers/vga/vga.c -> build/obj/src/drivers/vga/vga.c.o
AS src/bootloader/boot.s -> build/obj/src/bootloader/boot.s.o
CC src/kernel/stdio.c -> build/obj/src/kernel/stdio.c.o
src/kernel/stdio.c: In function ‘__kprintf’:
src/kernel/stdio.c:60:15: warning: comparison of unsigned expression in ‘< 0’ is always false [-Wtype-limits]
   60 |         if (i < 0)
      |               ^
CC src/kernel/cpu/ports.c -> build/obj/src/kernel/cpu/ports.c.o
CC src/kernel/kernel.c -> build/obj/src/kernel/kernel.c.o
CC src/kernel/errno.c -> build/obj/src/kernel/errno.c.o
\nLinking -> build/boot/TinyKernel.bin
mcopy: No directory slots
grub-mkrescue: error: `mcopy` invocation failed
.
make: *** [Makefile:52: iso] Error 1

Originally posted by @DevManu-de in #6 (comment)

When I reviewed the project, I saw a few things that weren't right. I want to share these with you:

• The inb(uint16) and outb(uint16, uint16) methods defined in the src/kernel/keyboard/keyboard.c file are not directly related to the keyboard. It's about CPU ports. Move these functions to a different location.
• There is absolutely no need for next_line_index in src/sys/vga.c. Make the VGA driver better, update. The VGA driver needs to be improved as soon as possible!

Describe the bug
I cloned this repo with git clone https://github.com/TinyKern/TinyKernel.git and then tried to compile it by typing make as described in the README.md and then I got following linker error

CC src/sys/char.c -> build/obj/src/sys/char.c.o
CC src/sys/utils.c -> build/obj/src/sys/utils.c.o
CC src/drivers/keyboard/keyboard.c -> build/obj/src/drivers/keyboard/keyboard.c.o
CC src/drivers/vga/vga.c -> build/obj/src/drivers/vga/vga.c.o
AS src/bootloader/boot.s -> build/obj/src/bootloader/boot.s.o
CC src/kernel/stdio.c -> build/obj/src/kernel/stdio.c.o
src/kernel/stdio.c: In function ‘__kprintf’:
src/kernel/stdio.c:60:15: warning: comparison of unsigned expression in ‘< 0’ is always false [-Wtype-limits]
   60 |         if (i < 0)
      |               ^
CC src/kernel/cpu/ports.c -> build/obj/src/kernel/cpu/ports.c.o
CC src/kernel/kernel.c -> build/obj/src/kernel/kernel.c.o
CC src/kernel/errno.c -> build/obj/src/kernel/errno.c.o
\nLinking -> build/boot/TinyKernel.bin
ld: build/obj/src/kernel/stdio.c.o: in function `.L19':
stdio.c:(.text+0x304): undefined reference to `__stack_chk_fail_local'
ld: build/obj/src/kernel/errno.c.o: in function `kprint_error':
errno.c:(.text+0xe6): undefined reference to `__stack_chk_fail_local'
ld: build/obj/src/kernel/errno.c.o: in function `kpanic':
errno.c:(.text+0x176): undefined reference to `__stack_chk_fail_local'
ld: build/boot/TinyKernel.bin: hidden symbol `__stack_chk_fail_local' isn't defined
ld: final link failed: bad value
make: *** [Makefile:60: build/boot/TinyKernel.bin] Error 1

I am trying to build this on Arco Linux with Kernel: 5.12.15-zen1-1-zen and gcc: 11.1.0 and linker: 2.36.1

To Reproduce
Steps to reproduce the behavior:

1. clone the repo
2. type make
3. See error

Expected behavior
Successfull compilation

Desktop (please complete the following information):

• OS: Arco Linux, Kernel 5.12.15-zen1-1-zen

Describe the bug
A clear and concise description of what the bug is.

To Reproduce
Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: [e.g. iOS]
• Version [e.g. 22]

Additional context
Add any other context about the problem here.

Currently, the input from the keyboard is not registered after entering the kernel.
Also can't figure out how to convert key code to ASCII char, Problem.

To Reproduce
Steps to reproduce the behavior:

1. Go to 'path/to/project/'
2. Enter make into the terminal.
3. run qemu-system-x86_64 -cdrom build/iso/TinyKernel_Bobrossrtx-0.1.3.iso to run the Kernel
4. See that no chars being printed from keyboard input.

Expected behavior

• After calling the input() function, it should enter an input mode where the user can type any character on the keyboard and it should then write the character to the buffer.
• The get_ascii_char() should return the value of the keycode converted to a char. Example: return KEY_A -> 'a'

Desktop:

• OS: All (Tested on Debain/Kali
• Version 0.1.3