x86: Machine-readable syscall tables and scripts to process them

Create a simple set of syscall tables and scripts to turn them into
both header files (unistd_*.h) and macros for generating the system
call tables.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

arch/x86/syscalls/Makefile

+out := $(obj)/../include/generated/asm
+
+# Create output directory if not already present
+_dummy := $(shell [ -d '$(out)' ] || mkdir -p '$(out)')
+
+syscall32 := $(srctree)/$(src)/syscall_32.tbl
+syscall64 := $(srctree)/$(src)/syscall_64.tbl
+
+syshdr := $(srctree)/$(src)/syscallhdr.sh
+systbl := $(srctree)/$(src)/syscalltbl.sh
+
+quiet_cmd_syshdr = SYSHDR  $@
+      cmd_syshdr = $(CONFIG_SHELL) '$(syshdr)' $< $@ \
+		   $(syshdr_abi_$(basetarget)) $(syshdr_pfx_$(basetarget))
+quiet_cmd_systbl = SYSTBL  $@
+      cmd_systbl = $(CONFIG_SHELL) '$(systbl)' $< $@
+
+syshdr_abi_unistd_32 := i386
+$(out)/unistd_32.h: $(syscall32) $(syshdr)
+	$(call if_changed,syshdr)
+
+syshdr_abi_unistd_32_ia32 := i386
+syshdr_pfx_unistd_32_ia32 := ia32_
+$(out)/unistd_32_ia32.h: $(syscall32) $(syshdr)
+	$(call if_changed,syshdr)
+
+syshdr_abi_unistd_64 := 64
+$(out)/unistd_64.h: $(syscall64) $(syshdr)
+	$(call if_changed,syshdr)
+
+$(out)/syscalls_32.h: $(syscall32) $(systbl)
+	$(call if_changed,systbl)
+$(out)/syscalls_64.h: $(syscall64) $(systbl)
+	$(call if_changed,systbl)
+
+syshdr-y			+= unistd_32.h unistd_64.h
+syshdr-y			+= syscalls_32.h
+syshdr-$(CONFIG_X86_64)		+= unistd_32_ia32.h
+syshdr-$(CONFIG_X86_64)		+= syscalls_64.h
+
+targets	+= $(syshdr-y)
+
+all: $(addprefix $(out)/,$(targets))

arch/x86/syscalls/syscall_64.tbl

+#
+# 64-bit system call numbers and entry vectors
+#
+# The format is:
+# <number> <abi> <name> <entry point>
+#
+# The abi is always "64" for this file (for now.)
+#
+0	64	read			sys_read
+1	64	write			sys_write
+2	64	open			sys_open
+3	64	close			sys_close
+4	64	stat			sys_newstat
+5	64	fstat			sys_newfstat
+6	64	lstat			sys_newlstat
+7	64	poll			sys_poll
+8	64	lseek			sys_lseek
+9	64	mmap			sys_mmap
+10	64	mprotect		sys_mprotect
+11	64	munmap			sys_munmap
+12	64	brk			sys_brk
+13	64	rt_sigaction		sys_rt_sigaction
+14	64	rt_sigprocmask		sys_rt_sigprocmask
+15	64	rt_sigreturn		stub_rt_sigreturn
+16	64	ioctl			sys_ioctl
+17	64	pread64			sys_pread64
+18	64	pwrite64		sys_pwrite64
+19	64	readv			sys_readv
+20	64	writev			sys_writev
+21	64	access			sys_access
+22	64	pipe			sys_pipe
+23	64	select			sys_select
+24	64	sched_yield		sys_sched_yield
+25	64	mremap			sys_mremap
+26	64	msync			sys_msync
+27	64	mincore			sys_mincore
+28	64	madvise			sys_madvise
+29	64	shmget			sys_shmget
+30	64	shmat			sys_shmat
+31	64	shmctl			sys_shmctl
+32	64	dup			sys_dup
+33	64	dup2			sys_dup2
+34	64	pause			sys_pause
+35	64	nanosleep		sys_nanosleep
+36	64	getitimer		sys_getitimer
+37	64	alarm			sys_alarm
+38	64	setitimer		sys_setitimer
+39	64	getpid			sys_getpid
+40	64	sendfile		sys_sendfile64
+41	64	socket			sys_socket
+42	64	connect			sys_connect
+43	64	accept			sys_accept
+44	64	sendto			sys_sendto
+45	64	recvfrom		sys_recvfrom
+46	64	sendmsg			sys_sendmsg
+47	64	recvmsg			sys_recvmsg
+48	64	shutdown		sys_shutdown
+49	64	bind			sys_bind
+50	64	listen			sys_listen
+51	64	getsockname		sys_getsockname
+52	64	getpeername		sys_getpeername
+53	64	socketpair		sys_socketpair
+54	64	setsockopt		sys_setsockopt
+55	64	getsockopt		sys_getsockopt
+56	64	clone			stub_clone
+57	64	fork			stub_fork
+58	64	vfork			stub_vfork
+59	64	execve			stub_execve
+60	64	exit			sys_exit
+61	64	wait4			sys_wait4
+62	64	kill			sys_kill
+63	64	uname			sys_newuname
+64	64	semget			sys_semget
+65	64	semop			sys_semop
+66	64	semctl			sys_semctl
+67	64	shmdt			sys_shmdt
+68	64	msgget			sys_msgget
+69	64	msgsnd			sys_msgsnd
+70	64	msgrcv			sys_msgrcv
+71	64	msgctl			sys_msgctl
+72	64	fcntl			sys_fcntl
+73	64	flock			sys_flock
+74	64	fsync			sys_fsync
+75	64	fdatasync		sys_fdatasync
+76	64	truncate		sys_truncate
+77	64	ftruncate		sys_ftruncate
+78	64	getdents		sys_getdents
+79	64	getcwd			sys_getcwd
+80	64	chdir			sys_chdir
+81	64	fchdir			sys_fchdir
+82	64	rename			sys_rename
+83	64	mkdir			sys_mkdir
+84	64	rmdir			sys_rmdir
+85	64	creat			sys_creat
+86	64	link			sys_link
+87	64	unlink			sys_unlink
+88	64	symlink			sys_symlink
+89	64	readlink		sys_readlink
+90	64	chmod			sys_chmod
+91	64	fchmod			sys_fchmod
+92	64	chown			sys_chown
+93	64	fchown			sys_fchown
+94	64	lchown			sys_lchown
+95	64	umask			sys_umask
+96	64	gettimeofday		sys_gettimeofday
+97	64	getrlimit		sys_getrlimit
+98	64	getrusage		sys_getrusage
+99	64	sysinfo			sys_sysinfo
+100	64	times			sys_times
+101	64	ptrace			sys_ptrace
+102	64	getuid			sys_getuid
+103	64	syslog			sys_syslog
+104	64	getgid			sys_getgid
+105	64	setuid			sys_setuid
+106	64	setgid			sys_setgid
+107	64	geteuid			sys_geteuid
+108	64	getegid			sys_getegid
+109	64	setpgid			sys_setpgid
+110	64	getppid			sys_getppid
+111	64	getpgrp			sys_getpgrp
+112	64	setsid			sys_setsid
+113	64	setreuid		sys_setreuid
+114	64	setregid		sys_setregid
+115	64	getgroups		sys_getgroups
+116	64	setgroups		sys_setgroups
+117	64	setresuid		sys_setresuid
+118	64	getresuid		sys_getresuid
+119	64	setresgid		sys_setresgid
+120	64	getresgid		sys_getresgid
+121	64	getpgid			sys_getpgid
+122	64	setfsuid		sys_setfsuid
+123	64	setfsgid		sys_setfsgid
+124	64	getsid			sys_getsid
+125	64	capget			sys_capget
+126	64	capset			sys_capset
+127	64	rt_sigpending		sys_rt_sigpending
+128	64	rt_sigtimedwait		sys_rt_sigtimedwait
+129	64	rt_sigqueueinfo		sys_rt_sigqueueinfo
+130	64	rt_sigsuspend		sys_rt_sigsuspend
+131	64	sigaltstack		stub_sigaltstack
+132	64	utime			sys_utime
+133	64	mknod			sys_mknod
+134	64	uselib
+135	64	personality		sys_personality
+136	64	ustat			sys_ustat
+137	64	statfs			sys_statfs
+138	64	fstatfs			sys_fstatfs
+139	64	sysfs			sys_sysfs
+140	64	getpriority		sys_getpriority
+141	64	setpriority		sys_setpriority
+142	64	sched_setparam		sys_sched_setparam
+143	64	sched_getparam		sys_sched_getparam
+144	64	sched_setscheduler	sys_sched_setscheduler
+145	64	sched_getscheduler	sys_sched_getscheduler
+146	64	sched_get_priority_max	sys_sched_get_priority_max
+147	64	sched_get_priority_min	sys_sched_get_priority_min
+148	64	sched_rr_get_interval	sys_sched_rr_get_interval
+149	64	mlock			sys_mlock
+150	64	munlock			sys_munlock
+151	64	mlockall		sys_mlockall
+152	64	munlockall		sys_munlockall
+153	64	vhangup			sys_vhangup
+154	64	modify_ldt		sys_modify_ldt
+155	64	pivot_root		sys_pivot_root
+156	64	_sysctl			sys_sysctl
+157	64	prctl			sys_prctl
+158	64	arch_prctl		sys_arch_prctl
+159	64	adjtimex		sys_adjtimex
+160	64	setrlimit		sys_setrlimit
+161	64	chroot			sys_chroot
+162	64	sync			sys_sync
+163	64	acct			sys_acct
+164	64	settimeofday		sys_settimeofday
+165	64	mount			sys_mount
+166	64	umount2			sys_umount
+167	64	swapon			sys_swapon
+168	64	swapoff			sys_swapoff
+169	64	reboot			sys_reboot
+170	64	sethostname		sys_sethostname
+171	64	setdomainname		sys_setdomainname
+172	64	iopl			stub_iopl
+173	64	ioperm			sys_ioperm
+174	64	create_module
+175	64	init_module		sys_init_module
+176	64	delete_module		sys_delete_module
+177	64	get_kernel_syms
+178	64	query_module
+179	64	quotactl		sys_quotactl
+180	64	nfsservctl
+181	64	getpmsg
+182	64	putpmsg
+183	64	afs_syscall
+184	64	tuxcall
+185	64	security
+186	64	gettid			sys_gettid
+187	64	readahead		sys_readahead
+188	64	setxattr		sys_setxattr
+189	64	lsetxattr		sys_lsetxattr
+190	64	fsetxattr		sys_fsetxattr
+191	64	getxattr		sys_getxattr
+192	64	lgetxattr		sys_lgetxattr
+193	64	fgetxattr		sys_fgetxattr
+194	64	listxattr		sys_listxattr
+195	64	llistxattr		sys_llistxattr
+196	64	flistxattr		sys_flistxattr
+197	64	removexattr		sys_removexattr
+198	64	lremovexattr		sys_lremovexattr
+199	64	fremovexattr		sys_fremovexattr
+200	64	tkill			sys_tkill
+201	64	time			sys_time
+202	64	futex			sys_futex
+203	64	sched_setaffinity	sys_sched_setaffinity
+204	64	sched_getaffinity	sys_sched_getaffinity
+205	64	set_thread_area
+206	64	io_setup		sys_io_setup
+207	64	io_destroy		sys_io_destroy
+208	64	io_getevents		sys_io_getevents
+209	64	io_submit		sys_io_submit
+210	64	io_cancel		sys_io_cancel
+211	64	get_thread_area
+212	64	lookup_dcookie		sys_lookup_dcookie
+213	64	epoll_create		sys_epoll_create
+214	64	epoll_ctl_old
+215	64	epoll_wait_old
+216	64	remap_file_pages	sys_remap_file_pages
+217	64	getdents64		sys_getdents64
+218	64	set_tid_address		sys_set_tid_address
+219	64	restart_syscall		sys_restart_syscall
+220	64	semtimedop		sys_semtimedop
+221	64	fadvise64		sys_fadvise64
+222	64	timer_create		sys_timer_create
+223	64	timer_settime		sys_timer_settime
+224	64	timer_gettime		sys_timer_gettime
+225	64	timer_getoverrun	sys_timer_getoverrun
+226	64	timer_delete		sys_timer_delete
+227	64	clock_settime		sys_clock_settime
+228	64	clock_gettime		sys_clock_gettime
+229	64	clock_getres		sys_clock_getres
+230	64	clock_nanosleep		sys_clock_nanosleep
+231	64	exit_group		sys_exit_group
+232	64	epoll_wait		sys_epoll_wait
+233	64	epoll_ctl		sys_epoll_ctl
+234	64	tgkill			sys_tgkill
+235	64	utimes			sys_utimes
+236	64	vserver
+237	64	mbind			sys_mbind
+238	64	set_mempolicy		sys_set_mempolicy
+239	64	get_mempolicy		sys_get_mempolicy
+240	64	mq_open			sys_mq_open
+241	64	mq_unlink		sys_mq_unlink
+242	64	mq_timedsend		sys_mq_timedsend
+243	64	mq_timedreceive		sys_mq_timedreceive
+244	64	mq_notify		sys_mq_notify
+245	64	mq_getsetattr		sys_mq_getsetattr
+246	64	kexec_load		sys_kexec_load
+247	64	waitid			sys_waitid
+248	64	add_key			sys_add_key
+249	64	request_key		sys_request_key
+250	64	keyctl			sys_keyctl
+251	64	ioprio_set		sys_ioprio_set
+252	64	ioprio_get		sys_ioprio_get
+253	64	inotify_init		sys_inotify_init
+254	64	inotify_add_watch	sys_inotify_add_watch
+255	64	inotify_rm_watch	sys_inotify_rm_watch
+256	64	migrate_pages		sys_migrate_pages
+257	64	openat			sys_openat
+258	64	mkdirat			sys_mkdirat
+259	64	mknodat			sys_mknodat
+260	64	fchownat		sys_fchownat
+261	64	futimesat		sys_futimesat
+262	64	newfstatat		sys_newfstatat
+263	64	unlinkat		sys_unlinkat
+264	64	renameat		sys_renameat
+265	64	linkat			sys_linkat
+266	64	symlinkat		sys_symlinkat
+267	64	readlinkat		sys_readlinkat
+268	64	fchmodat		sys_fchmodat
+269	64	faccessat		sys_faccessat
+270	64	pselect6		sys_pselect6
+271	64	ppoll			sys_ppoll
+272	64	unshare			sys_unshare
+273	64	set_robust_list		sys_set_robust_list
+274	64	get_robust_list		sys_get_robust_list
+275	64	splice			sys_splice
+276	64	tee			sys_tee
+277	64	sync_file_range		sys_sync_file_range
+278	64	vmsplice		sys_vmsplice
+279	64	move_pages		sys_move_pages
+280	64	utimensat		sys_utimensat
+281	64	epoll_pwait		sys_epoll_pwait
+282	64	signalfd		sys_signalfd
+283	64	timerfd_create		sys_timerfd_create
+284	64	eventfd			sys_eventfd
+285	64	fallocate		sys_fallocate
+286	64	timerfd_settime		sys_timerfd_settime
+287	64	timerfd_gettime		sys_timerfd_gettime
+288	64	accept4			sys_accept4
+289	64	signalfd4		sys_signalfd4
+290	64	eventfd2		sys_eventfd2
+291	64	epoll_create1		sys_epoll_create1
+292	64	dup3			sys_dup3
+293	64	pipe2			sys_pipe2
+294	64	inotify_init1		sys_inotify_init1
+295	64	preadv			sys_preadv
+296	64	pwritev			sys_pwritev
+297	64	rt_tgsigqueueinfo	sys_rt_tgsigqueueinfo
+298	64	perf_event_open		sys_perf_event_open
+299	64	recvmmsg		sys_recvmmsg
+300	64	fanotify_init		sys_fanotify_init
+301	64	fanotify_mark		sys_fanotify_mark
+302	64	prlimit64		sys_prlimit64
+303	64	name_to_handle_at	sys_name_to_handle_at
+304	64	open_by_handle_at	sys_open_by_handle_at
+305	64	clock_adjtime		sys_clock_adjtime
+306	64	syncfs			sys_syncfs
+307	64	sendmmsg		sys_sendmmsg
+308	64	setns			sys_setns
+309	64	getcpu			sys_getcpu
+310	64	process_vm_readv	sys_process_vm_readv
+311	64	process_vm_writev	sys_process_vm_writev

arch/x86/syscalls/syscallhdr.sh

+#!/bin/sh
+
+in="$1"
+out="$2"
+my_abis=`echo "$3" | tr ',' ' '`
+prefix="$4"
+offset="$5"
+
+fileguard=_ASM_X86_`basename "$out" | sed \
+    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
+    -e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g'`
+
+in_list () {
+    local x
+    for x in $1; do
+	if [ x"$x" = x"$2" ]; then
+	    return 0
+	fi
+    done
+    return 1
+}
+
+grep '^[0-9]' "$in" | sort -n | (
+    echo "#ifndef ${fileguard}"
+    echo "#define ${fileguard} 1"
+    echo ""
+
+    while read nr abi name entry ; do
+	if in_list "$my_abis" "$abi"; then
+	    echo "#define __NR_${prefix}${name}" $((nr+offset))
+        fi
+    done
+
+    echo ""
+    echo "#endif /* ${fileguard} */"
+) > "$out"

arch/x86/syscalls/syscalltbl.sh

+#!/bin/sh
+
+in="$1"
+out="$2"
+
+grep '^[0-9]' "$in" | sort -n | (
+    while read nr abi name entry compat; do
+	abi=`echo "$abi" | tr '[a-z]' '[A-Z]'`
+	if [ -n "$compat" ]; then
+	    echo "__SYSCALL_${abi}($nr, $entry, $compat)"
+	elif [ -n "$entry" ]; then
+	    echo "__SYSCALL_${abi}($nr, $entry, $entry)"
+	fi
+    done
+) > "$out"