sys_dup            96 arch/arm64/include/asm/unistd32.h __SYSCALL(__NR_dup, sys_dup)
sys_dup           368 include/linux/syscalls.h asmlinkage long sys_dup(unsigned int fildes);
sys_dup            94 include/uapi/asm-generic/unistd.h __SYSCALL(__NR_dup, sys_dup)
sys_dup            94 tools/include/uapi/asm-generic/unistd.h __SYSCALL(__NR_dup, sys_dup)