Linux-Kernel-Development

Sandboxed Redox OS and Hacked the linux kernel to add a syscall.

Instructions for Redox OS

First install the rust based architecture.
Clone the repostiory Redox-OS.
Compile and build the kernel using the instructions on documentation of official redox os distribution.
Run git submodule update --recursive --init to update the submodules.
Run qemu emulator to simulate the OS with and without kernel depending on how the flag set.
kvm=no for simulation without kernel and default is with kernel
Run make qemu kvm=no vga=no to simulate the OS without kernel and graphics (Terminal only).

First download the linux source code.
Replace the file kernel/sys.c in it with the file provided in the zip.
Replace the file arch/x86/entry/syscalls/syscall_64.tbl in it with the syscall_64.tbl provided in this zip.
Now compile and build the kernel using the instructions on the documentation of official linux kernel.
Compile and execute the testing.c script after booting into the QEMU emulator.
print the log using "dmesg | tail" command to see the result :)