Merge tag 'please-pull-y2038prep' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux

Pull ia64 updates from Tony Luck:
 "Change ia64 to make it easier to update system call tables (in line
  with some other architectures).

  This is in preparation for y2038 changes which are forecasted to add
  several new system calls"

* tag 'please-pull-y2038prep' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
  ia64: generate uapi header and system call table files
  ia64: add system call table generation support
  ia64: add an offset for system call number
  ia64: add __NR_syscalls along with NR_syscalls
  ia64: add __NR_old_getpagesize in uapi header file

arch/ia64/Makefile

@@ -80,6 +80,9 @@ unwcheck: vmlinux
 archclean:
 	$(Q)$(MAKE) $(clean)=$(boot)
 
+archheaders:
+	$(Q)$(MAKE) $(build)=arch/ia64/kernel/syscalls all
+
 CLEAN_FILES += vmlinux.gz bootloader
 
 boot:	lib/lib.a vmlinux

arch/ia64/include/asm/Kbuild

+generated-y += syscall_table.h
 generic-y += compat.h
 generic-y += exec.h
 generic-y += irq_work.h

arch/ia64/include/asm/unistd.h

@@ -10,9 +10,7 @@
 
 #include <uapi/asm/unistd.h>
 
-
-
-#define NR_syscalls			326 /* length of syscall table */
+#define NR_syscalls		__NR_syscalls /* length of syscall table */
 
 /*
  * The following defines stop scripts/checksyscalls.sh from complaining about

arch/ia64/include/uapi/asm/Kbuild

 # UAPI Header export list
 include include/uapi/asm-generic/Kbuild.asm
 
+generated-y += unistd_64.h
 generic-y += bpf_perf_event.h
 generic-y += ipcbuf.h
 generic-y += kvm_para.h

arch/ia64/kernel/entry.S

@@ -1426,335 +1426,10 @@ END(ftrace_stub)
 
 #endif /* CONFIG_FUNCTION_TRACER */
 
+#define __SYSCALL(nr, entry, nargs) data8 entry
 	.rodata
 	.align 8
 	.globl sys_call_table
 sys_call_table:
-	data8 sys_ni_syscall		//  This must be sys_ni_syscall!  See ivt.S.
-	data8 sys_exit				// 1025
-	data8 sys_read
-	data8 sys_write
-	data8 sys_open
-	data8 sys_close
-	data8 sys_creat				// 1030
-	data8 sys_link
-	data8 sys_unlink
-	data8 ia64_execve
-	data8 sys_chdir
-	data8 sys_fchdir			// 1035
-	data8 sys_utimes
-	data8 sys_mknod
-	data8 sys_chmod
-	data8 sys_chown
-	data8 sys_lseek				// 1040
-	data8 sys_getpid
-	data8 sys_getppid
-	data8 sys_mount
-	data8 sys_umount
-	data8 sys_setuid			// 1045
-	data8 sys_getuid
-	data8 sys_geteuid
-	data8 sys_ptrace
-	data8 sys_access
-	data8 sys_sync				// 1050
-	data8 sys_fsync
-	data8 sys_fdatasync
-	data8 sys_kill
-	data8 sys_rename
-	data8 sys_mkdir				// 1055
-	data8 sys_rmdir
-	data8 sys_dup
-	data8 sys_ia64_pipe
-	data8 sys_times
-	data8 ia64_brk				// 1060
-	data8 sys_setgid
-	data8 sys_getgid
-	data8 sys_getegid
-	data8 sys_acct
-	data8 sys_ioctl				// 1065
-	data8 sys_fcntl
-	data8 sys_umask
-	data8 sys_chroot
-	data8 sys_ustat
-	data8 sys_dup2				// 1070
-	data8 sys_setreuid
-	data8 sys_setregid
-	data8 sys_getresuid
-	data8 sys_setresuid
-	data8 sys_getresgid			// 1075
-	data8 sys_setresgid
-	data8 sys_getgroups
-	data8 sys_setgroups
-	data8 sys_getpgid
-	data8 sys_setpgid			// 1080
-	data8 sys_setsid
-	data8 sys_getsid
-	data8 sys_sethostname
-	data8 sys_setrlimit
-	data8 sys_getrlimit			// 1085
-	data8 sys_getrusage
-	data8 sys_gettimeofday
-	data8 sys_settimeofday
-	data8 sys_select
-	data8 sys_poll				// 1090
-	data8 sys_symlink
-	data8 sys_readlink
-	data8 sys_uselib
-	data8 sys_swapon
-	data8 sys_swapoff			// 1095
-	data8 sys_reboot
-	data8 sys_truncate
-	data8 sys_ftruncate
-	data8 sys_fchmod
-	data8 sys_fchown			// 1100
-	data8 ia64_getpriority
-	data8 sys_setpriority
-	data8 sys_statfs
-	data8 sys_fstatfs
-	data8 sys_gettid			// 1105
-	data8 sys_semget
-	data8 sys_semop
-	data8 sys_semctl
-	data8 sys_msgget
-	data8 sys_msgsnd			// 1110
-	data8 sys_msgrcv
-	data8 sys_msgctl
-	data8 sys_shmget
-	data8 sys_shmat
-	data8 sys_shmdt				// 1115
-	data8 sys_shmctl
-	data8 sys_syslog
-	data8 sys_setitimer
-	data8 sys_getitimer
-	data8 sys_ni_syscall			// 1120		/* was: ia64_oldstat */
-	data8 sys_ni_syscall					/* was: ia64_oldlstat */
-	data8 sys_ni_syscall					/* was: ia64_oldfstat */
-	data8 sys_vhangup
-	data8 sys_lchown
-	data8 sys_remap_file_pages		// 1125
-	data8 sys_wait4
-	data8 sys_sysinfo
-	data8 sys_clone
-	data8 sys_setdomainname
-	data8 sys_newuname			// 1130
-	data8 sys_adjtimex
-	data8 sys_ni_syscall					/* was: ia64_create_module */
-	data8 sys_init_module
-	data8 sys_delete_module
-	data8 sys_ni_syscall			// 1135		/* was: sys_get_kernel_syms */
-	data8 sys_ni_syscall					/* was: sys_query_module */
-	data8 sys_quotactl
-	data8 sys_bdflush
-	data8 sys_sysfs
-	data8 sys_personality			// 1140
-	data8 sys_ni_syscall		// sys_afs_syscall
-	data8 sys_setfsuid
-	data8 sys_setfsgid
-	data8 sys_getdents
-	data8 sys_flock				// 1145
-	data8 sys_readv
-	data8 sys_writev
-	data8 sys_pread64
-	data8 sys_pwrite64
-	data8 sys_sysctl			// 1150
-	data8 sys_mmap
-	data8 sys_munmap
-	data8 sys_mlock
-	data8 sys_mlockall
-	data8 sys_mprotect			// 1155
-	data8 ia64_mremap
-	data8 sys_msync
-	data8 sys_munlock
-	data8 sys_munlockall
-	data8 sys_sched_getparam		// 1160
-	data8 sys_sched_setparam
-	data8 sys_sched_getscheduler
-	data8 sys_sched_setscheduler
-	data8 sys_sched_yield
-	data8 sys_sched_get_priority_max	// 1165
-	data8 sys_sched_get_priority_min
-	data8 sys_sched_rr_get_interval
-	data8 sys_nanosleep
-	data8 sys_ni_syscall			// old nfsservctl
-	data8 sys_prctl				// 1170
-	data8 sys_getpagesize
-	data8 sys_mmap2
-	data8 sys_pciconfig_read
-	data8 sys_pciconfig_write
-	data8 sys_perfmonctl			// 1175
-	data8 sys_sigaltstack
-	data8 sys_rt_sigaction
-	data8 sys_rt_sigpending
-	data8 sys_rt_sigprocmask
-	data8 sys_rt_sigqueueinfo		// 1180
-	data8 sys_rt_sigreturn
-	data8 sys_rt_sigsuspend
-	data8 sys_rt_sigtimedwait
-	data8 sys_getcwd
-	data8 sys_capget			// 1185
-	data8 sys_capset
-	data8 sys_sendfile64
-	data8 sys_ni_syscall		// sys_getpmsg (STREAMS)
-	data8 sys_ni_syscall		// sys_putpmsg (STREAMS)
-	data8 sys_socket			// 1190
-	data8 sys_bind
-	data8 sys_connect
-	data8 sys_listen
-	data8 sys_accept
-	data8 sys_getsockname			// 1195
-	data8 sys_getpeername
-	data8 sys_socketpair
-	data8 sys_send
-	data8 sys_sendto
-	data8 sys_recv				// 1200
-	data8 sys_recvfrom
-	data8 sys_shutdown
-	data8 sys_setsockopt
-	data8 sys_getsockopt
-	data8 sys_sendmsg			// 1205
-	data8 sys_recvmsg
-	data8 sys_pivot_root
-	data8 sys_mincore
-	data8 sys_madvise
-	data8 sys_newstat			// 1210
-	data8 sys_newlstat
-	data8 sys_newfstat
-	data8 sys_clone2
-	data8 sys_getdents64
-	data8 sys_getunwind			// 1215
-	data8 sys_readahead
-	data8 sys_setxattr
-	data8 sys_lsetxattr
-	data8 sys_fsetxattr
-	data8 sys_getxattr			// 1220
-	data8 sys_lgetxattr
-	data8 sys_fgetxattr
-	data8 sys_listxattr
-	data8 sys_llistxattr
-	data8 sys_flistxattr			// 1225
-	data8 sys_removexattr
-	data8 sys_lremovexattr
-	data8 sys_fremovexattr
-	data8 sys_tkill
-	data8 sys_futex				// 1230
-	data8 sys_sched_setaffinity
-	data8 sys_sched_getaffinity
-	data8 sys_set_tid_address
-	data8 sys_fadvise64_64
-	data8 sys_tgkill 			// 1235
-	data8 sys_exit_group
-	data8 sys_lookup_dcookie
-	data8 sys_io_setup
-	data8 sys_io_destroy
-	data8 sys_io_getevents			// 1240
-	data8 sys_io_submit
-	data8 sys_io_cancel
-	data8 sys_epoll_create
-	data8 sys_epoll_ctl
-	data8 sys_epoll_wait			// 1245
-	data8 sys_restart_syscall
-	data8 sys_semtimedop
-	data8 sys_timer_create
-	data8 sys_timer_settime
-	data8 sys_timer_gettime			// 1250
-	data8 sys_timer_getoverrun
-	data8 sys_timer_delete
-	data8 sys_clock_settime
-	data8 sys_clock_gettime
-	data8 sys_clock_getres			// 1255
-	data8 sys_clock_nanosleep
-	data8 sys_fstatfs64
-	data8 sys_statfs64
-	data8 sys_mbind
-	data8 sys_get_mempolicy			// 1260
-	data8 sys_set_mempolicy
-	data8 sys_mq_open
-	data8 sys_mq_unlink
-	data8 sys_mq_timedsend
-	data8 sys_mq_timedreceive		// 1265
-	data8 sys_mq_notify
-	data8 sys_mq_getsetattr
-	data8 sys_kexec_load
-	data8 sys_ni_syscall			// reserved for vserver
-	data8 sys_waitid			// 1270
-	data8 sys_add_key
-	data8 sys_request_key
-	data8 sys_keyctl
-	data8 sys_ioprio_set
-	data8 sys_ioprio_get			// 1275
-	data8 sys_move_pages
-	data8 sys_inotify_init
-	data8 sys_inotify_add_watch
-	data8 sys_inotify_rm_watch
-	data8 sys_migrate_pages			// 1280
-	data8 sys_openat
-	data8 sys_mkdirat
-	data8 sys_mknodat
-	data8 sys_fchownat
-	data8 sys_futimesat			// 1285
-	data8 sys_newfstatat
-	data8 sys_unlinkat
-	data8 sys_renameat
-	data8 sys_linkat
-	data8 sys_symlinkat			// 1290
-	data8 sys_readlinkat
-	data8 sys_fchmodat
-	data8 sys_faccessat
-	data8 sys_pselect6
-	data8 sys_ppoll				// 1295
-	data8 sys_unshare
-	data8 sys_splice
-	data8 sys_set_robust_list
-	data8 sys_get_robust_list
-	data8 sys_sync_file_range		// 1300
-	data8 sys_tee
-	data8 sys_vmsplice
-	data8 sys_fallocate
-	data8 sys_getcpu
-	data8 sys_epoll_pwait			// 1305
-	data8 sys_utimensat
-	data8 sys_signalfd
-	data8 sys_ni_syscall
-	data8 sys_eventfd
-	data8 sys_timerfd_create		// 1310
-	data8 sys_timerfd_settime
-	data8 sys_timerfd_gettime
-	data8 sys_signalfd4
-	data8 sys_eventfd2
-	data8 sys_epoll_create1			// 1315
-	data8 sys_dup3
-	data8 sys_pipe2
-	data8 sys_inotify_init1
-	data8 sys_preadv
-	data8 sys_pwritev			// 1320
-	data8 sys_rt_tgsigqueueinfo
-	data8 sys_recvmmsg
-	data8 sys_fanotify_init
-	data8 sys_fanotify_mark
-	data8 sys_prlimit64			// 1325
-	data8 sys_name_to_handle_at
-	data8 sys_open_by_handle_at
-	data8 sys_clock_adjtime
-	data8 sys_syncfs
-	data8 sys_setns				// 1330
-	data8 sys_sendmmsg
-	data8 sys_process_vm_readv
-	data8 sys_process_vm_writev
-	data8 sys_accept4
-	data8 sys_finit_module			// 1335
-	data8 sys_sched_setattr
-	data8 sys_sched_getattr
-	data8 sys_renameat2
-	data8 sys_getrandom
-	data8 sys_memfd_create			// 1340
-	data8 sys_bpf
-	data8 sys_execveat
-	data8 sys_userfaultfd
-	data8 sys_membarrier
-	data8 sys_kcmp				// 1345
-	data8 sys_mlock2
-	data8 sys_copy_file_range
-	data8 sys_preadv2
-	data8 sys_pwritev2
-
-	.org sys_call_table + 8*NR_syscalls	// guard against failures to increase NR_syscalls
+#include <asm/syscall_table.h>
+#undef __SYSCALL

arch/ia64/kernel/syscalls/Makefile

+# SPDX-License-Identifier: GPL-2.0
+kapi := arch/$(SRCARCH)/include/generated/asm
+uapi := arch/$(SRCARCH)/include/generated/uapi/asm
+
+_dummy := $(shell [ -d '$(uapi)' ] || mkdir -p '$(uapi)')	\
+	  $(shell [ -d '$(kapi)' ] || mkdir -p '$(kapi)')
+
+syscall := $(srctree)/$(src)/syscall.tbl
+syshdr := $(srctree)/$(src)/syscallhdr.sh
+systbl := $(srctree)/$(src)/syscalltbl.sh
+
+quiet_cmd_syshdr = SYSHDR  $@
+      cmd_syshdr = $(CONFIG_SHELL) '$(syshdr)' '$<' '$@'	\
+		   '$(syshdr_abis_$(basetarget))'		\
+		   '$(syshdr_pfx_$(basetarget))'		\
+		   '$(syshdr_offset_$(basetarget))'
+
+quiet_cmd_systbl = SYSTBL  $@
+      cmd_systbl = $(CONFIG_SHELL) '$(systbl)' '$<' '$@'	\
+		   '$(systbl_abis_$(basetarget))'		\
+		   '$(systbl_abi_$(basetarget))'		\
+		   '$(systbl_offset_$(basetarget))'
+
+syshdr_offset_unistd_64 := __NR_Linux
+$(uapi)/unistd_64.h: $(syscall) $(syshdr)
+	$(call if_changed,syshdr)
+
+systbl_offset_syscall_table := 1024
+$(kapi)/syscall_table.h: $(syscall) $(systbl)
+	$(call if_changed,systbl)
+
+uapisyshdr-y		+= unistd_64.h
+kapisyshdr-y		+= syscall_table.h
+
+targets	+= $(uapisyshdr-y) $(kapisyshdr-y)
+
+PHONY += all
+all: $(addprefix $(uapi)/,$(uapisyshdr-y))
+all: $(addprefix $(kapi)/,$(kapisyshdr-y))
+	@:

arch/ia64/kernel/syscalls/syscallhdr.sh

+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+in="$1"
+out="$2"
+my_abis=`echo "($3)" | tr ',' '|'`
+prefix="$4"
+offset="$5"
+
+fileguard=_UAPI_ASM_IA64_`basename "$out" | sed \
+	-e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
+	-e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g'`
+grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
+	printf "#ifndef %s\n" "${fileguard}"
+	printf "#define %s\n" "${fileguard}"
+	printf "\n"
+
+	nxt=0
+	while read nr abi name entry ; do
+		if [ -z "$offset" ]; then
+			printf "#define __NR_%s%s\t%s\n" \
+				"${prefix}" "${name}" "${nr}"
+		else
+			printf "#define __NR_%s%s\t(%s + %s)\n" \
+				"${prefix}" "${name}" "${offset}" "${nr}"
+		fi
+		nxt=$((nr+1))
+	done
+
+	printf "\n"
+	printf "#ifdef __KERNEL__\n"
+	printf "#define __NR_syscalls\t%s\n" "${nxt}"
+	printf "#endif\n"
+	printf "\n"
+	printf "#endif /* %s */" "${fileguard}"
+) > "$out"

arch/ia64/kernel/syscalls/syscalltbl.sh

+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+in="$1"
+out="$2"
+my_abis=`echo "($3)" | tr ',' '|'`
+my_abi="$4"
+offset="$5"
+
+emit() {
+	t_nxt="$1"
+	t_nr="$2"
+	t_entry="$3"
+
+	while [ $t_nxt -lt $t_nr ]; do
+		printf "__SYSCALL(%s, sys_ni_syscall, )\n" "${t_nxt}"
+		t_nxt=$((t_nxt+1))
+	done
+	printf "__SYSCALL(%s, %s, )\n" "${t_nxt}" "${t_entry}"
+}
+
+grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
+	nxt=0
+	if [ -z "$offset" ]; then
+		offset=0
+	fi
+
+	while read nr abi name entry ; do
+		emit $((nxt+offset)) $((nr+offset)) $entry
+		nxt=$((nr+1))
+	done
+) > "$out"