sys_chown 438 arch/arm64/include/asm/unistd32.h __SYSCALL(__NR_chown32, sys_chown) sys_chown 1041 include/linux/syscalls.h asmlinkage long sys_chown(const char __user *filename, sys_chown 1822 tools/include/nolibc/nolibc.h int ret = sys_chown(path, owner, group);