Possibly unhandled system calls in Linux kernel 5.10
Found some unhandled system calls while updated Ubuntu CI to 20.04 in #4953 (closed).
On my local system, which is Linux kernel 5.10.46, following system calls are new:
x86-64:
+# define __NR_pidfd_send_signal 424
+# define __NR_io_uring_setup 425
+# define __NR_io_uring_enter 426
+# define __NR_io_uring_register 427
+# define __NR_open_tree 428
+# define __NR_move_mount 429
+# define __NR_fsopen 430
+# define __NR_fsconfig 431
+# define __NR_fsmount 432
+# define __NR_fspick 433
+# define __NR_pidfd_open 434
+# define __NR_clone3 435
+# define __NR_close_range 436
+# define __NR_openat2 437
+# define __NR_pidfd_getfd 438
+# define __NR_faccessat2 439
+# define __NR_process_madvise 440
x86-32:
+# define __NR_semget 393
+# define __NR_semctl 394
+# define __NR_shmget 395
+# define __NR_shmctl 396
+# define __NR_shmat 397
+# define __NR_shmdt 398
+# define __NR_msgget 399
+# define __NR_msgsnd 400
+# define __NR_msgrcv 401
+# define __NR_msgctl 402
+# define __NR_clock_gettime64 403
+# define __NR_clock_settime64 404
+# define __NR_clock_adjtime64 405
+# define __NR_clock_getres_time64 406
+# define __NR_clock_nanosleep_time64 407
+# define __NR_timer_gettime64 408
+# define __NR_timer_settime64 409
+# define __NR_timerfd_gettime64 410
+# define __NR_timerfd_settime64 411
+# define __NR_utimensat_time64 412
+# define __NR_pselect6_time64 413
+# define __NR_ppoll_time64 414
+# define __NR_io_pgetevents_time64 416
+# define __NR_recvmmsg_time64 417
+# define __NR_mq_timedsend_time64 418
+# define __NR_mq_timedreceive_time64 419
+# define __NR_semtimedop_time64 420
+# define __NR_rt_sigtimedwait_time64 421
+# define __NR_futex_time64 422
+# define __NR_sched_rr_get_interval_time64 423
+# define __NR_pidfd_send_signal 424
+# define __NR_io_uring_setup 425
+# define __NR_io_uring_enter 426
+# define __NR_io_uring_register 427
+# define __NR_open_tree 428
+# define __NR_move_mount 429
+# define __NR_fsopen 430
+# define __NR_fsconfig 431
+# define __NR_fsmount 432
+# define __NR_fspick 433
+# define __NR_pidfd_open 434
+# define __NR_clone3 435
+# define __NR_close_range 436
+# define __NR_openat2 437
+# define __NR_pidfd_getfd 438
+# define __NR_faccessat2 439
+# define __NR_process_madvise 440