332    common  statx                   __x64_sys_statx
 333    common  io_pgetevents           __x64_sys_io_pgetevents
 334    common  rseq                    __x64_sys_rseq
+# don't use numbers 387 through 423, add new calls after the last
+# 'common' entry
 
 #
 # x32-specific system call numbers start at 512 to avoid cache impact
 520    x32     execve                  __x32_compat_sys_execve/ptregs
 521    x32     ptrace                  __x32_compat_sys_ptrace
 522    x32     rt_sigpending           __x32_compat_sys_rt_sigpending
-523    x32     rt_sigtimedwait         __x32_compat_sys_rt_sigtimedwait
+523    x32     rt_sigtimedwait         __x32_compat_sys_rt_sigtimedwait_time64
 524    x32     rt_sigqueueinfo         __x32_compat_sys_rt_sigqueueinfo
 525    x32     sigaltstack             __x32_compat_sys_sigaltstack
 526    x32     timer_create            __x32_compat_sys_timer_create
 534    x32     preadv                  __x32_compat_sys_preadv64
 535    x32     pwritev                 __x32_compat_sys_pwritev64
 536    x32     rt_tgsigqueueinfo       __x32_compat_sys_rt_tgsigqueueinfo
-537    x32     recvmmsg                __x32_compat_sys_recvmmsg
+537    x32     recvmmsg                __x32_compat_sys_recvmmsg_time64
 538    x32     sendmmsg                __x32_compat_sys_sendmmsg
 539    x32     process_vm_readv        __x32_compat_sys_process_vm_readv
 540    x32     process_vm_writev       __x32_compat_sys_process_vm_writev