Assignment 5 Creating and Calling Own System Call

[jimin-kiim]

• defining system call function
  • creating system call function in linux-5.4.214/kernel/my_syscall.c
  • adding code to Makefile linux-5.4.214/kernel/Makefile
• registering system call number to the table
  • ARM64
    • linux-5.4.214/include/uapi/asm-generic/unistd.h
    • linux-5.4.214/include/linux/syscalls.h
• compiling the kernel
  • make menuconfig
  • make -j 4
  • make modules -j 4
  • sudo make modules_install -j 4
  • sudo make install
• using sys_mycall
  • syscall_example.c
  • gcc syscall_example.c -o result: compiling c code
  • ./result
  • sudo dmesg: printing out kernel diagnostic message

Resolved: #2