Merge tag 'y2038-syscall-cleanup' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground into timers/2038

Pull preparatory work for y2038 changes from Arnd Bergmann:

System call unification and cleanup

The system call tables have diverged a bit over the years, and a number of
the recent additions never made it into all architectures, for one reason
or another.

This is an attempt to clean it up as far as we can without breaking
compatibility, doing a number of steps:

- Add system calls that have not yet been integrated into all architectures
but that we definitely want there. This includes {,f}statfs64() and
get{eg,eu,g,p,u,pp}id() on alpha, which have been missing traditionally.

- The s390 compat syscall handling is cleaned up to be more like what we
do on other architectures, while keeping the 31-bit pointer
extension. This was merged as a shared branch by the s390 maintainers
and is included here in order to base the other patches on top.

- Add the separate ipc syscalls on all architectures that traditionally
only had sys_ipc(). This version is done without support for IPC_OLD
that is we have in sys_ipc. The new semtimedop_time64 syscall will only
be added here, not in sys_ipc

- Add syscall numbers for a couple of syscalls that we probably don't need
everywhere, in particular pkey_* and rseq, for the purpose of symmetry:
if it's in asm-generic/unistd.h, it makes sense to have it everywhere. I
expect that any future system calls will get assigned on all platforms
together, even when they appear to be specific to a single architecture.

- Prepare for having the same system call numbers for any future calls. In
combination with the generated tables, this hopefully makes it easier to
add new calls across all architectures together.

All of the above are technically separate from the y2038 work, but are done
as preparation before we add the new 64-bit time_t system calls everywhere,
providing a common baseline set of system calls.

I expect that glibc and other libraries that want to use 64-bit time_t will
require linux-5.1 kernel headers for building in the future, and at a much
later point may also require linux-5.1 or a later version as the minimum
kernel at runtime. Having a common baseline then allows the removal of many
architecture or kernel version specific workarounds.

arch/alpha/include/asm/unistd.h

···
 #define __ARCH_WANT_SYS_VFORK
 #define __ARCH_WANT_SYS_CLONE
 
-/*
- * Ignore legacy syscalls that we don't use.
- */
-#define __IGNORE_alarm
-#define __IGNORE_creat
-#define __IGNORE_getegid
-#define __IGNORE_geteuid
-#define __IGNORE_getgid
-#define __IGNORE_getpid
-#define __IGNORE_getppid
-#define __IGNORE_getuid
-#define __IGNORE_pause
-#define __IGNORE_time
-#define __IGNORE_utime
-#define __IGNORE_umount2
-
-/* Alpha doesn't have protection keys. */
-#define __IGNORE_pkey_mprotect
-#define __IGNORE_pkey_alloc
-#define __IGNORE_pkey_free
-
 #endif /* _ALPHA_UNISTD_H */

arch/alpha/include/uapi/asm/unistd.h

···
 #ifndef _UAPI_ALPHA_UNISTD_H
 #define _UAPI_ALPHA_UNISTD_H
 
+/* These are traditionally the names linux-alpha uses for
+ * the two otherwise generic system calls */
+#define __NR_umount	__NR_umount2
+#define __NR_osf_shmat	__NR_shmat
+
+/* These return an extra value but can be used as aliases */
+#define __NR_getpid	__NR_getxpid
+#define __NR_getuid	__NR_getxuid
+#define __NR_getgid	__NR_getxgid
+
 #include <asm/unistd_32.h>
 
 #endif /* _UAPI_ALPHA_UNISTD_H */

arch/alpha/kernel/syscalls/syscall.tbl

···
 19	common	lseek				sys_lseek
 20	common	getxpid				sys_getxpid
 21	common	osf_mount			sys_osf_mount
-22	common	umount				sys_umount
+22	common	umount2				sys_umount
 23	common	setuid				sys_setuid
 24	common	getxuid				sys_getxuid
 25	common	exec_with_loader		sys_ni_syscall
···
 187	common	osf_alt_sigpending		sys_ni_syscall
 188	common	osf_alt_setsid			sys_ni_syscall
 199	common	osf_swapon			sys_swapon
-200	common	msgctl				sys_msgctl
+200	common	msgctl				sys_old_msgctl
 201	common	msgget				sys_msgget
 202	common	msgrcv				sys_msgrcv
 203	common	msgsnd				sys_msgsnd
-204	common	semctl				sys_semctl
+204	common	semctl				sys_old_semctl
 205	common	semget				sys_semget
 206	common	semop				sys_semop
 207	common	osf_utsname			sys_osf_utsname
 208	common	lchown				sys_lchown
-209	common	osf_shmat			sys_shmat
-210	common	shmctl				sys_shmctl
+209	common	shmat				sys_shmat
+210	common	shmctl				sys_old_shmctl
 211	common	shmdt				sys_shmdt
 212	common	shmget				sys_shmget
 213	common	osf_mvalid			sys_ni_syscall
···
 520	common	preadv2				sys_preadv2
 521	common	pwritev2			sys_pwritev2
 522	common	statx				sys_statx
+523	common	io_pgetevents			sys_io_pgetevents
+524	common	pkey_mprotect			sys_pkey_mprotect
+525	common	pkey_alloc			sys_pkey_alloc
+526	common	pkey_free			sys_pkey_free
+527	common	rseq				sys_rseq
+528	common	statfs64			sys_statfs64
+529	common	fstatfs64			sys_fstatfs64
+530	common	getegid				sys_getegid
+531	common	geteuid				sys_geteuid
+532	common	getppid				sys_getppid

arch/arm/include/asm/unistd.h

···
  * Unimplemented (or alternatively implemented) syscalls
  */
 #define __IGNORE_fadvise64_64
-#define __IGNORE_migrate_pages
 
 #ifdef __ARM_EABI__
 /*

arch/arm/tools/syscall.tbl

···
 297	common	recvmsg			sys_recvmsg
 298	common	semop			sys_semop		sys_oabi_semop
 299	common	semget			sys_semget
-300	common	semctl			sys_semctl
+300	common	semctl			sys_old_semctl
 301	common	msgsnd			sys_msgsnd
 302	common	msgrcv			sys_msgrcv
 303	common	msgget			sys_msgget
-304	common	msgctl			sys_msgctl
+304	common	msgctl			sys_old_msgctl
 305	common	shmat			sys_shmat
 306	common	shmdt			sys_shmdt
 307	common	shmget			sys_shmget
-308	common	shmctl			sys_shmctl
+308	common	shmctl			sys_old_shmctl
 309	common	add_key			sys_add_key
 310	common	request_key		sys_request_key
 311	common	keyctl			sys_keyctl
···
 397	common	statx			sys_statx
 398	common	rseq			sys_rseq
 399	common	io_pgetevents		sys_io_pgetevents
+400	common	migrate_pages		sys_migrate_pages
+401	common	kexec_file_load		sys_kexec_file_load

arch/arm64/include/asm/unistd.h

···
 #define __ARM_NR_compat_set_tls		(__ARM_NR_COMPAT_BASE + 5)
 #define __ARM_NR_COMPAT_END		(__ARM_NR_COMPAT_BASE + 0x800)
 
-#define __NR_compat_syscalls		400
+#define __NR_compat_syscalls		402
 #endif
 
 #define __ARCH_WANT_SYS_CLONE

arch/arm64/include/asm/unistd32.h

···
 #define __NR_semget 299
 __SYSCALL(__NR_semget, sys_semget)
 #define __NR_semctl 300
-__SYSCALL(__NR_semctl, compat_sys_semctl)
+__SYSCALL(__NR_semctl, compat_sys_old_semctl)
 #define __NR_msgsnd 301
 __SYSCALL(__NR_msgsnd, compat_sys_msgsnd)
 #define __NR_msgrcv 302
···
 #define __NR_msgget 303
 __SYSCALL(__NR_msgget, sys_msgget)
 #define __NR_msgctl 304
-__SYSCALL(__NR_msgctl, compat_sys_msgctl)
+__SYSCALL(__NR_msgctl, compat_sys_old_msgctl)
 #define __NR_shmat 305
 __SYSCALL(__NR_shmat, compat_sys_shmat)
 #define __NR_shmdt 306
···
 #define __NR_shmget 307
 __SYSCALL(__NR_shmget, sys_shmget)
 #define __NR_shmctl 308
-__SYSCALL(__NR_shmctl, compat_sys_shmctl)
+__SYSCALL(__NR_shmctl, compat_sys_old_shmctl)
 #define __NR_add_key 309
 __SYSCALL(__NR_add_key, sys_add_key)
 #define __NR_request_key 310
···
 __SYSCALL(__NR_rseq, sys_rseq)
 #define __NR_io_pgetevents 399
 __SYSCALL(__NR_io_pgetevents, compat_sys_io_pgetevents)
+#define __NR_migrate_pages 400
+__SYSCALL(__NR_migrate_pages, compat_sys_migrate_pages)
+#define __NR_kexec_file_load 401
+__SYSCALL(__NR_kexec_file_load, sys_kexec_file_load)
 
 /*
  * Please add new compat syscalls above this comment and update

arch/ia64/include/asm/unistd.h

···
 
 #define NR_syscalls		__NR_syscalls /* length of syscall table */
 
-/*
- * The following defines stop scripts/checksyscalls.sh from complaining about
- * unimplemented system calls.  Glibc provides for each of these by using
- * more modern equivalent system calls.
- */
-#define __IGNORE_fork		/* clone() */
-#define __IGNORE_time		/* gettimeofday() */
-#define __IGNORE_alarm		/* setitimer(ITIMER_REAL, ... */
-#define __IGNORE_pause		/* rt_sigprocmask(), rt_sigsuspend() */
-#define __IGNORE_utime		/* utimes() */
-#define __IGNORE_getpgrp	/* getpgid() */
-#define __IGNORE_vfork		/* clone() */
-#define __IGNORE_umount2	/* umount() */
-
 #define __ARCH_WANT_NEW_STAT
 #define __ARCH_WANT_SYS_UTIME
 

arch/ia64/include/uapi/asm/unistd.h

···
 
 #define __NR_Linux      1024
 
+#define __NR_umount __NR_umount2
+
 #include <asm/unistd_64.h>
 
 #endif /* _UAPI_ASM_IA64_UNISTD_H */

arch/ia64/kernel/syscalls/syscall.tbl

···
 17	common	getpid				sys_getpid
 18	common	getppid				sys_getppid
 19	common	mount				sys_mount
-20	common	umount				sys_umount
+20	common	umount2				sys_umount
 21	common	setuid				sys_setuid
 22	common	getuid				sys_getuid
 23	common	geteuid				sys_geteuid
···
 323	common	copy_file_range			sys_copy_file_range
 324	common	preadv2				sys_preadv2
 325	common	pwritev2			sys_pwritev2
+326	common	statx				sys_statx
+327	common	io_pgetevents			sys_io_pgetevents
+328	common	perf_event_open			sys_perf_event_open
+329	common	seccomp				sys_seccomp
+330	common	pkey_mprotect			sys_pkey_mprotect
+331	common	pkey_alloc			sys_pkey_alloc
+332	common	pkey_free			sys_pkey_free
+333	common	rseq				sys_rseq

arch/m68k/kernel/syscalls/syscall.tbl

···
 377	common	preadv2				sys_preadv2
 378	common	pwritev2			sys_pwritev2
 379	common	statx				sys_statx
+380	common	seccomp				sys_seccomp
+381	common	pkey_mprotect			sys_pkey_mprotect
+382	common	pkey_alloc			sys_pkey_alloc
+383	common	pkey_free			sys_pkey_free
+384	common	rseq				sys_rseq
+# room for arch specific calls
+393	common	semget				sys_semget
+394	common	semctl				sys_semctl
+395	common	shmget				sys_shmget
+396	common	shmctl				sys_shmctl
+397	common	shmat				sys_shmat
+398	common	shmdt				sys_shmdt
+399	common	msgget				sys_msgget
+400	common	msgsnd				sys_msgsnd
+401	common	msgrcv				sys_msgrcv
+402	common	msgctl				sys_msgctl

arch/microblaze/kernel/syscalls/syscall.tbl

···
 325	common	semtimedop			sys_semtimedop
 326	common	timerfd_settime			sys_timerfd_settime
 327	common	timerfd_gettime			sys_timerfd_gettime
-328	common	semctl				sys_semctl
+328	common	semctl				sys_old_semctl
 329	common	semget				sys_semget
 330	common	semop				sys_semop
-331	common	msgctl				sys_msgctl
+331	common	msgctl				sys_old_msgctl
 332	common	msgget				sys_msgget
 333	common	msgrcv				sys_msgrcv
 334	common	msgsnd				sys_msgsnd
 335	common	shmat				sys_shmat
-336	common	shmctl				sys_shmctl
+336	common	shmctl				sys_old_shmctl
 337	common	shmdt				sys_shmdt
 338	common	shmget				sys_shmget
 339	common	signalfd4			sys_signalfd4

arch/mips/include/asm/unistd.h

···
 #define __ARCH_WANT_SYS_CLONE
 
 /* whitelists for checksyscalls */
-#define __IGNORE_select
-#define __IGNORE_vfork
-#define __IGNORE_time
-#define __IGNORE_uselib
 #define __IGNORE_fadvise64_64
-#define __IGNORE_getdents64
-#if _MIPS_SIM == _MIPS_SIM_NABI32
-#define __IGNORE_truncate64
-#define __IGNORE_ftruncate64
-#define __IGNORE_stat64
-#define __IGNORE_lstat64
-#define __IGNORE_fstat64
-#define __IGNORE_fstatat64
-#endif
 
 #endif /* !__ASSEMBLY__ */
 

arch/mips/kernel/syscalls/syscall_n32.tbl

···
 27	n32	madvise				sys_madvise
 28	n32	shmget				sys_shmget
 29	n32	shmat				sys_shmat
-30	n32	shmctl				compat_sys_shmctl
+30	n32	shmctl				compat_sys_old_shmctl
 31	n32	dup				sys_dup
 32	n32	dup2				sys_dup2
 33	n32	pause				sys_pause
···
 61	n32	uname				sys_newuname
 62	n32	semget				sys_semget
 63	n32	semop				sys_semop
-64	n32	semctl				compat_sys_semctl
+64	n32	semctl				compat_sys_old_semctl
 65	n32	shmdt				sys_shmdt
 66	n32	msgget				sys_msgget
 67	n32	msgsnd				compat_sys_msgsnd
 68	n32	msgrcv				compat_sys_msgrcv
-69	n32	msgctl				compat_sys_msgctl
+69	n32	msgctl				compat_sys_old_msgctl
 70	n32	fcntl				compat_sys_fcntl
 71	n32	flock				sys_flock
 72	n32	fsync				sys_fsync

arch/mips/kernel/syscalls/syscall_n64.tbl

···
 27	n64	madvise				sys_madvise
 28	n64	shmget				sys_shmget
 29	n64	shmat				sys_shmat
-30	n64	shmctl				sys_shmctl
+30	n64	shmctl				sys_old_shmctl
 31	n64	dup				sys_dup
 32	n64	dup2				sys_dup2
 33	n64	pause				sys_pause
···
 61	n64	uname				sys_newuname
 62	n64	semget				sys_semget
 63	n64	semop				sys_semop
-64	n64	semctl				sys_semctl
+64	n64	semctl				sys_old_semctl
 65	n64	shmdt				sys_shmdt
 66	n64	msgget				sys_msgget
 67	n64	msgsnd				sys_msgsnd
 68	n64	msgrcv				sys_msgrcv
-69	n64	msgctl				sys_msgctl
+69	n64	msgctl				sys_old_msgctl
 70	n64	fcntl				sys_fcntl
 71	n64	flock				sys_flock
 72	n64	fsync				sys_fsync

arch/mips/kernel/syscalls/syscall_o32.tbl

···
 366	o32	statx				sys_statx
 367	o32	rseq				sys_rseq
 368	o32	io_pgetevents			sys_io_pgetevents		compat_sys_io_pgetevents
+# room for arch specific calls
+393	o32	semget				sys_semget
+394	o32	semctl				sys_semctl			compat_sys_semctl
+395	o32	shmget				sys_shmget
+396	o32	shmctl				sys_shmctl			compat_sys_shmctl
+397	o32	shmat				sys_shmat			compat_sys_shmat
+398	o32	shmdt				sys_shmdt
+399	o32	msgget				sys_msgget
+400	o32	msgsnd				sys_msgsnd			compat_sys_msgsnd
+401	o32	msgrcv				sys_msgrcv			compat_sys_msgrcv
+402	o32	msgctl				sys_msgctl			compat_sys_msgctl

arch/parisc/include/asm/unistd.h

···
 
 #define SYS_ify(syscall_name)   __NR_##syscall_name
 
-#define __IGNORE_select			/* newselect */
 #define __IGNORE_fadvise64		/* fadvise64_64 */
-#define __IGNORE_pkey_mprotect
-#define __IGNORE_pkey_alloc
-#define __IGNORE_pkey_free
 
 #ifndef ASM_LINE_SEP
 # define ASM_LINE_SEP ;

arch/parisc/kernel/syscalls/syscall.tbl

···
 348	common	pwritev2		sys_pwritev2			compat_sys_pwritev2
 349	common	statx			sys_statx
 350	common	io_pgetevents		sys_io_pgetevents		compat_sys_io_pgetevents
+351	common	pkey_mprotect		sys_pkey_mprotect
+352	common	pkey_alloc		sys_pkey_alloc
+353	common	pkey_free		sys_pkey_free
+354	common	rseq			sys_rseq

arch/powerpc/kernel/syscalls/syscall.tbl

···
 363	spu	switch_endian			sys_ni_syscall
 364	common	userfaultfd			sys_userfaultfd
 365	common	membarrier			sys_membarrier
+# 366-377 originally left for IPC, now unused
 378	nospu	mlock2				sys_mlock2
 379	nospu	copy_file_range			sys_copy_file_range
 380	common	preadv2				sys_preadv2			compat_sys_preadv2
···
 386	nospu	pkey_mprotect			sys_pkey_mprotect
 387	nospu	rseq				sys_rseq
 388	nospu	io_pgetevents			sys_io_pgetevents		compat_sys_io_pgetevents
+# room for arch specific syscalls
+392	64	semtimedop			sys_semtimedop
+393	common	semget				sys_semget
+394	common	semctl				sys_semctl			compat_sys_semctl
+395	common	shmget				sys_shmget
+396	common	shmctl				sys_shmctl			compat_sys_shmctl
+397	common	shmat				sys_shmat			compat_sys_shmat
+398	common	shmdt				sys_shmdt
+399	common	msgget				sys_msgget
+400	common	msgsnd				sys_msgsnd			compat_sys_msgsnd
+401	common	msgrcv				sys_msgrcv			compat_sys_msgrcv
+402	common	msgctl				sys_msgctl			compat_sys_msgctl

arch/s390/Kconfig

···
 	select ARCH_HAS_SET_MEMORY
 	select ARCH_HAS_STRICT_KERNEL_RWX
 	select ARCH_HAS_STRICT_MODULE_RWX
+	select ARCH_HAS_SYSCALL_WRAPPER
 	select ARCH_HAS_UBSAN_SANITIZE_ALL
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 	select ARCH_INLINE_READ_LOCK
···
 	select COMPAT_BINFMT_ELF if BINFMT_ELF
 	select ARCH_WANT_OLD_COMPAT_IPC
 	select COMPAT_OLD_SIGACTION
+	select HAVE_UID16
 	depends on MULTIUSER
 	help
 	  Select this option if you want to enable your system kernel to

arch/s390/include/asm/syscall_wrapper.h

···
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * syscall_wrapper.h - s390 specific wrappers to syscall definitions
+ *
+ */
+
+#ifndef _ASM_S390_SYSCALL_WRAPPER_H
+#define _ASM_S390_SYSCALL_WRAPPER_H
+
+#ifdef CONFIG_COMPAT
+#define __SC_COMPAT_TYPE(t, a) \
+	__typeof(__builtin_choose_expr(sizeof(t) > 4, 0L, (t)0)) a
+
+#define __SC_COMPAT_CAST(t, a)						\
+({									\
+	long __ReS = a;							\
+									\
+	BUILD_BUG_ON((sizeof(t) > 4) && !__TYPE_IS_L(t) &&		\
+		     !__TYPE_IS_UL(t) && !__TYPE_IS_PTR(t) &&		\
+		     !__TYPE_IS_LL(t));					\
+	if (__TYPE_IS_L(t))						\
+		__ReS = (s32)a;						\
+	if (__TYPE_IS_UL(t))						\
+		__ReS = (u32)a;						\
+	if (__TYPE_IS_PTR(t))						\
+		__ReS = a & 0x7fffffff;					\
+	if (__TYPE_IS_LL(t))						\
+		return -ENOSYS;						\
+	(t)__ReS;							\
+})
+
+#define __S390_SYS_STUBx(x, name, ...)					\
+	asmlinkage long __s390_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__))\
+	ALLOW_ERROR_INJECTION(__s390_sys##name, ERRNO);			\
+	asmlinkage long __s390_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__))\
+	{								\
+		long ret = __s390x_sys##name(__MAP(x,__SC_COMPAT_CAST,__VA_ARGS__));\
+		__MAP(x,__SC_TEST,__VA_ARGS__);				\
+		return ret;						\
+	}
+
+/*
+ * To keep the naming coherent, re-define SYSCALL_DEFINE0 to create an alias
+ * named __s390x_sys_*()
+ */
+#define COMPAT_SYSCALL_DEFINE0(sname)					\
+	SYSCALL_METADATA(_##sname, 0);					\
+	asmlinkage long __s390_compat_sys_##sname(void);		\
+	ALLOW_ERROR_INJECTION(__s390_compat__sys_##sname, ERRNO);	\
+	asmlinkage long __s390_compat_sys_##sname(void)
+
+#define SYSCALL_DEFINE0(sname)						\
+	SYSCALL_METADATA(_##sname, 0);					\
+	asmlinkage long __s390x_sys_##sname(void);			\
+	ALLOW_ERROR_INJECTION(__s390x_sys_##sname, ERRNO);		\
+	asmlinkage long __s390_sys_##sname(void)			\
+		__attribute__((alias(__stringify(__s390x_sys_##sname)))); \
+	asmlinkage long __s390x_sys_##sname(void)
+
+#define COND_SYSCALL(name)						\
+	cond_syscall(__s390x_sys_##name);				\
+	cond_syscall(__s390_sys_##name)
+
+#define SYS_NI(name)							\
+	SYSCALL_ALIAS(__s390x_sys_##name, sys_ni_posix_timers);		\
+	SYSCALL_ALIAS(__s390_sys_##name, sys_ni_posix_timers)
+
+#define COMPAT_SYSCALL_DEFINEx(x, name, ...)					\
+	__diag_push();								\
+	__diag_ignore(GCC, 8, "-Wattribute-alias",				\
+		      "Type aliasing is used to sanitize syscall arguments");\
+	asmlinkage long __s390_compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));	\
+	asmlinkage long __s390_compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))	\
+		__attribute__((alias(__stringify(__se_compat_sys##name))));	\
+	ALLOW_ERROR_INJECTION(compat_sys##name, ERRNO);				\
+	static inline long __do_compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
+	asmlinkage long __se_compat_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__));	\
+	asmlinkage long __se_compat_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__))	\
+	{									\
+		long ret = __do_compat_sys##name(__MAP(x,__SC_DELOUSE,__VA_ARGS__));\
+		__MAP(x,__SC_TEST,__VA_ARGS__);					\
+		return ret;							\
+	}									\
+	__diag_pop();								\
+	static inline long __do_compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
+
+/*
+ * As some compat syscalls may not be implemented, we need to expand
+ * COND_SYSCALL_COMPAT in kernel/sys_ni.c and COMPAT_SYS_NI in
+ * kernel/time/posix-stubs.c to cover this case as well.
+ */
+#define COND_SYSCALL_COMPAT(name)					\
+	cond_syscall(__s390_compat_sys_##name)
+
+#define COMPAT_SYS_NI(name)						\
+	SYSCALL_ALIAS(__s390_compat_sys_##name, sys_ni_posix_timers)
+
+#else /* CONFIG_COMPAT */
+
+#define __S390_SYS_STUBx(x, fullname, name, ...)
+
+#define SYSCALL_DEFINE0(sname)						\
+	SYSCALL_METADATA(_##sname, 0);					\
+	asmlinkage long __s390x_sys_##sname(void);			\
+	ALLOW_ERROR_INJECTION(__s390x_sys_##sname, ERRNO);		\
+	asmlinkage long __s390x_sys_##sname(void)
+
+#define COND_SYSCALL(name)						\
+	cond_syscall(__s390x_sys_##name)
+
+#define SYS_NI(name)							\
+	SYSCALL_ALIAS(__s390x_sys_##name, sys_ni_posix_timers);
+
+#endif /* CONFIG_COMPAT */
+
+#define __SYSCALL_DEFINEx(x, name, ...)						\
+	__diag_push();								\
+	__diag_ignore(GCC, 8, "-Wattribute-alias",				\
+		      "Type aliasing is used to sanitize syscall arguments");\
+	asmlinkage long __s390x_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))	\
+		__attribute__((alias(__stringify(__se_sys##name))));		\
+	ALLOW_ERROR_INJECTION(__s390x_sys##name, ERRNO);				\
+	static long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__));		\
+	static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));	\
+	__S390_SYS_STUBx(x, name, __VA_ARGS__)					\
+	asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__))		\
+	{									\
+		long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));	\
+		__MAP(x,__SC_TEST,__VA_ARGS__);					\
+		return ret;							\
+	}									\
+	__diag_pop();								\
+	static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
+
+#endif /* _ASM_X86_SYSCALL_WRAPPER_H */

arch/s390/include/asm/unistd.h

···
 #include <uapi/asm/unistd.h>
 #include <asm/unistd_nr.h>
 
-#define __IGNORE_time
-#define __IGNORE_pkey_mprotect
-#define __IGNORE_pkey_alloc
-#define __IGNORE_pkey_free
-
 #define __ARCH_WANT_NEW_STAT
 #define __ARCH_WANT_OLD_READDIR
 #define __ARCH_WANT_SYS_ALARM

arch/s390/include/uapi/asm/posix_types.h

···
 typedef unsigned short	__kernel_old_dev_t;
 #define __kernel_old_dev_t __kernel_old_dev_t
 
+#ifdef __KERNEL__
+typedef unsigned short __kernel_old_uid_t;
+typedef unsigned short __kernel_old_gid_t;
+#define __kernel_old_uid_t __kernel_old_uid_t
+#endif
+
 #ifndef __s390x__
 
 typedef unsigned long   __kernel_ino_t;

arch/s390/kernel/Makefile

···
 obj-$(CONFIG_AUDIT)		+= audit.o
 compat-obj-$(CONFIG_AUDIT)	+= compat_audit.o
 obj-$(CONFIG_COMPAT)		+= compat_linux.o compat_signal.o
-obj-$(CONFIG_COMPAT)		+= compat_wrapper.o $(compat-obj-y)
+obj-$(CONFIG_COMPAT)		+= $(compat-obj-y)
 obj-$(CONFIG_EARLY_PRINTK)	+= early_printk.o
 obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
 obj-$(CONFIG_KPROBES)		+= kprobes.o

arch/s390/kernel/compat_linux.c

···
 #include <linux/stat.h>
 #include <linux/filter.h>
 #include <linux/highmem.h>
-#include <linux/highuid.h>
 #include <linux/mman.h>
 #include <linux/ipv6.h>
 #include <linux/in.h>
···
 
 #include "compat_linux.h"
 
-/* For this source file, we want overflow handling. */
-
-#undef high2lowuid
-#undef high2lowgid
-#undef low2highuid
-#undef low2highgid
-#undef SET_UID16
-#undef SET_GID16
-#undef NEW_TO_OLD_UID
-#undef NEW_TO_OLD_GID
-#undef SET_OLDSTAT_UID
-#undef SET_OLDSTAT_GID
-#undef SET_STAT_UID
-#undef SET_STAT_GID
-
-#define high2lowuid(uid) ((uid) > 65535) ? (u16)overflowuid : (u16)(uid)
-#define high2lowgid(gid) ((gid) > 65535) ? (u16)overflowgid : (u16)(gid)
-#define low2highuid(uid) ((uid) == (u16)-1) ? (uid_t)-1 : (uid_t)(uid)
-#define low2highgid(gid) ((gid) == (u16)-1) ? (gid_t)-1 : (gid_t)(gid)
-#define SET_UID16(var, uid)	var = high2lowuid(uid)
-#define SET_GID16(var, gid)	var = high2lowgid(gid)
-#define NEW_TO_OLD_UID(uid)	high2lowuid(uid)
-#define NEW_TO_OLD_GID(gid)	high2lowgid(gid)
-#define SET_OLDSTAT_UID(stat, uid)	(stat).st_uid = high2lowuid(uid)
-#define SET_OLDSTAT_GID(stat, gid)	(stat).st_gid = high2lowgid(gid)
-#define SET_STAT_UID(stat, uid)		(stat).st_uid = high2lowuid(uid)
-#define SET_STAT_GID(stat, gid)		(stat).st_gid = high2lowgid(gid)
-
-COMPAT_SYSCALL_DEFINE3(s390_chown16, const char __user *, filename,
-		       u16, user, u16, group)
-{
-	return ksys_chown(filename, low2highuid(user), low2highgid(group));
-}
-
-COMPAT_SYSCALL_DEFINE3(s390_lchown16, const char __user *,
-		       filename, u16, user, u16, group)
-{
-	return ksys_lchown(filename, low2highuid(user), low2highgid(group));
-}
-
-COMPAT_SYSCALL_DEFINE3(s390_fchown16, unsigned int, fd, u16, user, u16, group)
-{
-	return ksys_fchown(fd, low2highuid(user), low2highgid(group));
-}
-
-COMPAT_SYSCALL_DEFINE2(s390_setregid16, u16, rgid, u16, egid)
-{
-	return sys_setregid(low2highgid(rgid), low2highgid(egid));
-}
-
-COMPAT_SYSCALL_DEFINE1(s390_setgid16, u16, gid)
-{
-	return sys_setgid(low2highgid(gid));
-}
-
-COMPAT_SYSCALL_DEFINE2(s390_setreuid16, u16, ruid, u16, euid)
-{
-	return sys_setreuid(low2highuid(ruid), low2highuid(euid));
-}
-
-COMPAT_SYSCALL_DEFINE1(s390_setuid16, u16, uid)
-{
-	return sys_setuid(low2highuid(uid));
-}
-
-COMPAT_SYSCALL_DEFINE3(s390_setresuid16, u16, ruid, u16, euid, u16, suid)
-{
-	return sys_setresuid(low2highuid(ruid), low2highuid(euid),
-			     low2highuid(suid));
-}
-
-COMPAT_SYSCALL_DEFINE3(s390_getresuid16, u16 __user *, ruidp,
-		       u16 __user *, euidp, u16 __user *, suidp)
-{
-	const struct cred *cred = current_cred();
-	int retval;
-	u16 ruid, euid, suid;
-
-	ruid = high2lowuid(from_kuid_munged(cred->user_ns, cred->uid));
-	euid = high2lowuid(from_kuid_munged(cred->user_ns, cred->euid));
-	suid = high2lowuid(from_kuid_munged(cred->user_ns, cred->suid));
-
-	if (!(retval   = put_user(ruid, ruidp)) &&
-	    !(retval   = put_user(euid, euidp)))
-		retval = put_user(suid, suidp);
-
-	return retval;
-}
-
-COMPAT_SYSCALL_DEFINE3(s390_setresgid16, u16, rgid, u16, egid, u16, sgid)
-{
-	return sys_setresgid(low2highgid(rgid), low2highgid(egid),
-			     low2highgid(sgid));
-}
-
-COMPAT_SYSCALL_DEFINE3(s390_getresgid16, u16 __user *, rgidp,
-		       u16 __user *, egidp, u16 __user *, sgidp)
-{
-	const struct cred *cred = current_cred();
-	int retval;
-	u16 rgid, egid, sgid;
-
-	rgid = high2lowgid(from_kgid_munged(cred->user_ns, cred->gid));
-	egid = high2lowgid(from_kgid_munged(cred->user_ns, cred->egid));
-	sgid = high2lowgid(from_kgid_munged(cred->user_ns, cred->sgid));
-
-	if (!(retval   = put_user(rgid, rgidp)) &&
-	    !(retval   = put_user(egid, egidp)))
-		retval = put_user(sgid, sgidp);
-
-	return retval;
-}
-
-COMPAT_SYSCALL_DEFINE1(s390_setfsuid16, u16, uid)
-{
-	return sys_setfsuid(low2highuid(uid));
-}
-
-COMPAT_SYSCALL_DEFINE1(s390_setfsgid16, u16, gid)
-{
-	return sys_setfsgid(low2highgid(gid));
-}
-
-static int groups16_to_user(u16 __user *grouplist, struct group_info *group_info)
-{
-	struct user_namespace *user_ns = current_user_ns();
-	int i;
-	u16 group;
-	kgid_t kgid;
-
-	for (i = 0; i < group_info->ngroups; i++) {
-		kgid = group_info->gid[i];
-		group = (u16)from_kgid_munged(user_ns, kgid);
-		if (put_user(group, grouplist+i))
-			return -EFAULT;
-	}
-
-	return 0;
-}
-
-static int groups16_from_user(struct group_info *group_info, u16 __user *grouplist)
-{
-	struct user_namespace *user_ns = current_user_ns();
-	int i;
-	u16 group;
-	kgid_t kgid;
-
-	for (i = 0; i < group_info->ngroups; i++) {
-		if (get_user(group, grouplist+i))
-			return  -EFAULT;
-
-		kgid = make_kgid(user_ns, (gid_t)group);
-		if (!gid_valid(kgid))
-			return -EINVAL;
-
-		group_info->gid[i] = kgid;
-	}
-
-	return 0;
-}
-
-COMPAT_SYSCALL_DEFINE2(s390_getgroups16, int, gidsetsize, u16 __user *, grouplist)
-{
-	const struct cred *cred = current_cred();
-	int i;
-
-	if (gidsetsize < 0)
-		return -EINVAL;
-
-	get_group_info(cred->group_info);
-	i = cred->group_info->ngroups;
-	if (gidsetsize) {
-		if (i > gidsetsize) {
-			i = -EINVAL;
-			goto out;
-		}
-		if (groups16_to_user(grouplist, cred->group_info)) {
-			i = -EFAULT;
-			goto out;
-		}
-	}
-out:
-	put_group_info(cred->group_info);
-	return i;
-}
-
-COMPAT_SYSCALL_DEFINE2(s390_setgroups16, int, gidsetsize, u16 __user *, grouplist)
-{
-	struct group_info *group_info;
-	int retval;
-
-	if (!may_setgroups())
-		return -EPERM;
-	if ((unsigned)gidsetsize > NGROUPS_MAX)
-		return -EINVAL;
-
-	group_info = groups_alloc(gidsetsize);
-	if (!group_info)
-		return -ENOMEM;
-	retval = groups16_from_user(group_info, grouplist);
-	if (retval) {
-		put_group_info(group_info);
-		return retval;
-	}
-
-	groups_sort(group_info);
-	retval = set_current_groups(group_info);
-	put_group_info(group_info);
-
-	return retval;
-}
-
-COMPAT_SYSCALL_DEFINE0(s390_getuid16)
-{
-	return high2lowuid(from_kuid_munged(current_user_ns(), current_uid()));
-}
-
-COMPAT_SYSCALL_DEFINE0(s390_geteuid16)
-{
-	return high2lowuid(from_kuid_munged(current_user_ns(), current_euid()));
-}
-
-COMPAT_SYSCALL_DEFINE0(s390_getgid16)
-{
-	return high2lowgid(from_kgid_munged(current_user_ns(), current_gid()));
-}
-
-COMPAT_SYSCALL_DEFINE0(s390_getegid16)
-{
-	return high2lowgid(from_kgid_munged(current_user_ns(), current_egid()));
-}
-
 #ifdef CONFIG_SYSVIPC
 COMPAT_SYSCALL_DEFINE5(s390_ipc, uint, call, int, first, compat_ulong_t, second,
 		compat_ulong_t, third, compat_uptr_t, ptr)
 {
 	if (call >> 16)		/* hack for backward compatibility */
 		return -EINVAL;
-	return compat_sys_ipc(call, first, second, third, ptr, third);
+	return compat_ksys_ipc(call, first, second, third, ptr, third);
 }
 #endif
 

arch/s390/kernel/compat_wrapper.c

···
-// SPDX-License-Identifier: GPL-2.0
-/*
- *  Compat system call wrappers.
- *
- *    Copyright IBM Corp. 2014
- */
-
-#include <linux/syscalls.h>
-#include <linux/compat.h>
-#include "entry.h"
-
-#define COMPAT_SYSCALL_WRAP1(name, ...) \
-	COMPAT_SYSCALL_WRAPx(1, _##name, __VA_ARGS__)
-#define COMPAT_SYSCALL_WRAP2(name, ...) \
-	COMPAT_SYSCALL_WRAPx(2, _##name, __VA_ARGS__)
-#define COMPAT_SYSCALL_WRAP3(name, ...) \
-	COMPAT_SYSCALL_WRAPx(3, _##name, __VA_ARGS__)
-#define COMPAT_SYSCALL_WRAP4(name, ...) \
-	COMPAT_SYSCALL_WRAPx(4, _##name, __VA_ARGS__)
-#define COMPAT_SYSCALL_WRAP5(name, ...) \
-	COMPAT_SYSCALL_WRAPx(5, _##name, __VA_ARGS__)
-#define COMPAT_SYSCALL_WRAP6(name, ...) \
-	COMPAT_SYSCALL_WRAPx(6, _##name, __VA_ARGS__)
-
-#define __SC_COMPAT_TYPE(t, a) \
-	__typeof(__builtin_choose_expr(sizeof(t) > 4, 0L, (t)0)) a
-
-#define __SC_COMPAT_CAST(t, a)						\
-({									\
-	long __ReS = a;							\
-									\
-	BUILD_BUG_ON((sizeof(t) > 4) && !__TYPE_IS_L(t) &&		\
-		     !__TYPE_IS_UL(t) && !__TYPE_IS_PTR(t));		\
-	if (__TYPE_IS_L(t))						\
-		__ReS = (s32)a;						\
-	if (__TYPE_IS_UL(t))						\
-		__ReS = (u32)a;						\
-	if (__TYPE_IS_PTR(t))						\
-		__ReS = a & 0x7fffffff;					\
-	(t)__ReS;							\
-})
-
-/*
- * The COMPAT_SYSCALL_WRAP macro generates system call wrappers to be used by
- * compat tasks. These wrappers will only be used for system calls where only
- * the system call arguments need sign or zero extension or zeroing of the upper
- * 33 bits of pointers.
- * Note: since the wrapper function will afterwards call a system call which
- * again performs zero and sign extension for all system call arguments with
- * a size of less than eight bytes, these compat wrappers only touch those
- * system call arguments with a size of eight bytes ((unsigned) long and
- * pointers). Zero and sign extension for e.g. int parameters will be done by
- * the regular system call wrappers.
- */
-#define COMPAT_SYSCALL_WRAPx(x, name, ...)					\
-asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));			\
-asmlinkage long notrace compat_sys##name(__MAP(x,__SC_COMPAT_TYPE,__VA_ARGS__));\
-asmlinkage long notrace compat_sys##name(__MAP(x,__SC_COMPAT_TYPE,__VA_ARGS__))	\
-{										\
-	return sys##name(__MAP(x,__SC_COMPAT_CAST,__VA_ARGS__));		\
-}
-
-COMPAT_SYSCALL_WRAP2(creat, const char __user *, pathname, umode_t, mode);
-COMPAT_SYSCALL_WRAP2(link, const char __user *, oldname, const char __user *, newname);
-COMPAT_SYSCALL_WRAP1(unlink, const char __user *, pathname);
-COMPAT_SYSCALL_WRAP1(chdir, const char __user *, filename);
-COMPAT_SYSCALL_WRAP3(mknod, const char __user *, filename, umode_t, mode, unsigned, dev);
-COMPAT_SYSCALL_WRAP2(chmod, const char __user *, filename, umode_t, mode);
-COMPAT_SYSCALL_WRAP1(oldumount, char __user *, name);
-COMPAT_SYSCALL_WRAP2(access, const char __user *, filename, int, mode);
-COMPAT_SYSCALL_WRAP2(rename, const char __user *, oldname, const char __user *, newname);
-COMPAT_SYSCALL_WRAP2(mkdir, const char __user *, pathname, umode_t, mode);
-COMPAT_SYSCALL_WRAP1(rmdir, const char __user *, pathname);
-COMPAT_SYSCALL_WRAP1(pipe, int __user *, fildes);
-COMPAT_SYSCALL_WRAP1(brk, unsigned long, brk);
-COMPAT_SYSCALL_WRAP2(signal, int, sig, __sighandler_t, handler);
-COMPAT_SYSCALL_WRAP1(acct, const char __user *, name);
-COMPAT_SYSCALL_WRAP2(umount, char __user *, name, int, flags);
-COMPAT_SYSCALL_WRAP1(chroot, const char __user *, filename);
-COMPAT_SYSCALL_WRAP3(sigsuspend, int, unused1, int, unused2, old_sigset_t, mask);
-COMPAT_SYSCALL_WRAP2(sethostname, char __user *, name, int, len);
-COMPAT_SYSCALL_WRAP2(symlink, const char __user *, old, const char __user *, new);
-COMPAT_SYSCALL_WRAP3(readlink, const char __user *, path, char __user *, buf, int, bufsiz);
-COMPAT_SYSCALL_WRAP1(uselib, const char __user *, library);
-COMPAT_SYSCALL_WRAP2(swapon, const char __user *, specialfile, int, swap_flags);
-COMPAT_SYSCALL_WRAP4(reboot, int, magic1, int, magic2, unsigned int, cmd, void __user *, arg);
-COMPAT_SYSCALL_WRAP2(munmap, unsigned long, addr, size_t, len);
-COMPAT_SYSCALL_WRAP3(syslog, int, type, char __user *, buf, int, len);
-COMPAT_SYSCALL_WRAP1(swapoff, const char __user *, specialfile);
-COMPAT_SYSCALL_WRAP2(setdomainname, char __user *, name, int, len);
-COMPAT_SYSCALL_WRAP1(newuname, struct new_utsname __user *, name);
-COMPAT_SYSCALL_WRAP3(mprotect, unsigned long, start, size_t, len, unsigned long, prot);
-COMPAT_SYSCALL_WRAP3(init_module, void __user *, umod, unsigned long, len, const char __user *, uargs);
-COMPAT_SYSCALL_WRAP2(delete_module, const char __user *, name_user, unsigned int, flags);
-COMPAT_SYSCALL_WRAP4(quotactl, unsigned int, cmd, const char __user *, special, qid_t, id, void __user *, addr);
-COMPAT_SYSCALL_WRAP2(bdflush, int, func, long, data);
-COMPAT_SYSCALL_WRAP3(sysfs, int, option, unsigned long, arg1, unsigned long, arg2);
-COMPAT_SYSCALL_WRAP5(llseek, unsigned int, fd, unsigned long, high, unsigned long, low, loff_t __user *, result, unsigned int, whence);
-COMPAT_SYSCALL_WRAP3(msync, unsigned long, start, size_t, len, int, flags);
-COMPAT_SYSCALL_WRAP2(mlock, unsigned long, start, size_t, len);
-COMPAT_SYSCALL_WRAP2(munlock, unsigned long, start, size_t, len);
-COMPAT_SYSCALL_WRAP2(sched_setparam, pid_t, pid, struct sched_param __user *, param);
-COMPAT_SYSCALL_WRAP2(sched_getparam, pid_t, pid, struct sched_param __user *, param);
-COMPAT_SYSCALL_WRAP3(sched_setscheduler, pid_t, pid, int, policy, struct sched_param __user *, param);
-COMPAT_SYSCALL_WRAP5(mremap, unsigned long, addr, unsigned long, old_len, unsigned long, new_len, unsigned long, flags, unsigned long, new_addr);
-COMPAT_SYSCALL_WRAP3(poll, struct pollfd __user *, ufds, unsigned int, nfds, int, timeout);
-COMPAT_SYSCALL_WRAP5(prctl, int, option, unsigned long, arg2, unsigned long, arg3, unsigned long, arg4, unsigned long, arg5);
-COMPAT_SYSCALL_WRAP2(getcwd, char __user *, buf, unsigned long, size);
-COMPAT_SYSCALL_WRAP2(capget, cap_user_header_t, header, cap_user_data_t, dataptr);
-COMPAT_SYSCALL_WRAP2(capset, cap_user_header_t, header, const cap_user_data_t, data);
-COMPAT_SYSCALL_WRAP3(lchown, const char __user *, filename, uid_t, user, gid_t, group);
-COMPAT_SYSCALL_WRAP2(getgroups, int, gidsetsize, gid_t __user *, grouplist);
-COMPAT_SYSCALL_WRAP2(setgroups, int, gidsetsize, gid_t __user *, grouplist);
-COMPAT_SYSCALL_WRAP3(getresuid, uid_t __user *, ruid, uid_t __user *, euid, uid_t __user *, suid);
-COMPAT_SYSCALL_WRAP3(getresgid, gid_t __user *, rgid, gid_t __user *, egid, gid_t __user *, sgid);
-COMPAT_SYSCALL_WRAP3(chown, const char __user *, filename, uid_t, user, gid_t, group);
-COMPAT_SYSCALL_WRAP2(pivot_root, const char __user *, new_root, const char __user *, put_old);
-COMPAT_SYSCALL_WRAP3(mincore, unsigned long, start, size_t, len, unsigned char __user *, vec);
-COMPAT_SYSCALL_WRAP3(madvise, unsigned long, start, size_t, len, int, behavior);
-COMPAT_SYSCALL_WRAP5(setxattr, const char __user *, path, const char __user *, name, const void __user *, value, size_t, size, int, flags);
-COMPAT_SYSCALL_WRAP5(lsetxattr, const char __user *, path, const char __user *, name, const void __user *, value, size_t, size, int, flags);
-COMPAT_SYSCALL_WRAP5(fsetxattr, int, fd, const char __user *, name, const void __user *, value, size_t, size, int, flags);
-COMPAT_SYSCALL_WRAP3(getdents64, unsigned int, fd, struct linux_dirent64 __user *, dirent, unsigned int, count);
-COMPAT_SYSCALL_WRAP4(getxattr, const char __user *, path, const char __user *, name, void __user *, value, size_t, size);
-COMPAT_SYSCALL_WRAP4(lgetxattr, const char __user *, path, const char __user *, name, void __user *, value, size_t, size);
-COMPAT_SYSCALL_WRAP4(fgetxattr, int, fd, const char __user *, name, void __user *, value, size_t, size);
-COMPAT_SYSCALL_WRAP3(listxattr, const char __user *, path, char __user *, list, size_t, size);
-COMPAT_SYSCALL_WRAP3(llistxattr, const char __user *, path, char __user *, list, size_t, size);
-COMPAT_SYSCALL_WRAP3(flistxattr, int, fd, char __user *, list, size_t, size);
-COMPAT_SYSCALL_WRAP2(removexattr, const char __user *, path, const char __user *, name);
-COMPAT_SYSCALL_WRAP2(lremovexattr, const char __user *, path, const char __user *, name);
-COMPAT_SYSCALL_WRAP2(fremovexattr, int, fd, const char __user *, name);
-COMPAT_SYSCALL_WRAP1(set_tid_address, int __user *, tidptr);
-COMPAT_SYSCALL_WRAP4(epoll_ctl, int, epfd, int, op, int, fd, struct epoll_event __user *, event);
-COMPAT_SYSCALL_WRAP4(epoll_wait, int, epfd, struct epoll_event __user *, events, int, maxevents, int, timeout);
-COMPAT_SYSCALL_WRAP1(io_destroy, aio_context_t, ctx);
-COMPAT_SYSCALL_WRAP3(io_cancel, aio_context_t, ctx_id, struct iocb __user *, iocb, struct io_event __user *, result);
-COMPAT_SYSCALL_WRAP1(mq_unlink, const char __user *, name);
-COMPAT_SYSCALL_WRAP5(add_key, const char __user *, tp, const char __user *, dsc, const void __user *, pld, size_t, len, key_serial_t, id);
-COMPAT_SYSCALL_WRAP4(request_key, const char __user *, tp, const char __user *, dsc, const char __user *, info, key_serial_t, id);
-COMPAT_SYSCALL_WRAP5(remap_file_pages, unsigned long, start, unsigned long, size, unsigned long, prot, unsigned long, pgoff, unsigned long, flags);
-COMPAT_SYSCALL_WRAP3(inotify_add_watch, int, fd, const char __user *, path, u32, mask);
-COMPAT_SYSCALL_WRAP3(mkdirat, int, dfd, const char __user *, pathname, umode_t, mode);
-COMPAT_SYSCALL_WRAP4(mknodat, int, dfd, const char __user *, filename, umode_t, mode, unsigned, dev);
-COMPAT_SYSCALL_WRAP5(fchownat, int, dfd, const char __user *, filename, uid_t, user, gid_t, group, int, flag);
-COMPAT_SYSCALL_WRAP3(unlinkat, int, dfd, const char __user *, pathname, int, flag);
-COMPAT_SYSCALL_WRAP4(renameat, int, olddfd, const char __user *, oldname, int, newdfd, const char __user *, newname);
-COMPAT_SYSCALL_WRAP5(linkat, int, olddfd, const char __user *, oldname, int, newdfd, const char __user *, newname, int, flags);
-COMPAT_SYSCALL_WRAP3(symlinkat, const char __user *, oldname, int, newdfd, const char __user *, newname);
-COMPAT_SYSCALL_WRAP4(readlinkat, int, dfd, const char __user *, path, char __user *, buf, int, bufsiz);
-COMPAT_SYSCALL_WRAP3(fchmodat, int, dfd, const char __user *, filename, umode_t, mode);
-COMPAT_SYSCALL_WRAP3(faccessat, int, dfd, const char __user *, filename, int, mode);
-COMPAT_SYSCALL_WRAP1(unshare, unsigned long, unshare_flags);
-COMPAT_SYSCALL_WRAP6(splice, int, fd_in, loff_t __user *, off_in, int, fd_out, loff_t __user *, off_out, size_t, len, unsigned int, flags);
-COMPAT_SYSCALL_WRAP4(tee, int, fdin, int, fdout, size_t, len, unsigned int, flags);
-COMPAT_SYSCALL_WRAP3(getcpu, unsigned __user *, cpu, unsigned __user *, node, struct getcpu_cache __user *, cache);
-COMPAT_SYSCALL_WRAP2(pipe2, int __user *, fildes, int, flags);
-COMPAT_SYSCALL_WRAP5(perf_event_open, struct perf_event_attr __user *, attr_uptr, pid_t, pid, int, cpu, int, group_fd, unsigned long, flags);
-COMPAT_SYSCALL_WRAP5(clone, unsigned long, newsp, unsigned long, clone_flags, int __user *, parent_tidptr, int __user *, child_tidptr, unsigned long, tls);
-COMPAT_SYSCALL_WRAP4(prlimit64, pid_t, pid, unsigned int, resource, const struct rlimit64 __user *, new_rlim, struct rlimit64 __user *, old_rlim);
-COMPAT_SYSCALL_WRAP5(name_to_handle_at, int, dfd, const char __user *, name, struct file_handle __user *, handle, int __user *, mnt_id, int, flag);
-COMPAT_SYSCALL_WRAP5(kcmp, pid_t, pid1, pid_t, pid2, int, type, unsigned long, idx1, unsigned long, idx2);
-COMPAT_SYSCALL_WRAP3(finit_module, int, fd, const char __user *, uargs, int, flags);
-COMPAT_SYSCALL_WRAP3(sched_setattr, pid_t, pid, struct sched_attr __user *, attr, unsigned int, flags);
-COMPAT_SYSCALL_WRAP4(sched_getattr, pid_t, pid, struct sched_attr __user *, attr, unsigned int, size, unsigned int, flags);
-COMPAT_SYSCALL_WRAP5(renameat2, int, olddfd, const char __user *, oldname, int, newdfd, const char __user *, newname, unsigned int, flags);
-COMPAT_SYSCALL_WRAP3(seccomp, unsigned int, op, unsigned int, flags, void __user *, uargs)
-COMPAT_SYSCALL_WRAP3(getrandom, char __user *, buf, size_t, count, unsigned int, flags)
-COMPAT_SYSCALL_WRAP2(memfd_create, const char __user *, uname, unsigned int, flags)
-COMPAT_SYSCALL_WRAP3(bpf, int, cmd, union bpf_attr *, attr, unsigned int, size);
-COMPAT_SYSCALL_WRAP3(s390_pci_mmio_write, const unsigned long, mmio_addr, const void __user *, user_buffer, const size_t, length);
-COMPAT_SYSCALL_WRAP3(s390_pci_mmio_read, const unsigned long, mmio_addr, void __user *, user_buffer, const size_t, length);
-COMPAT_SYSCALL_WRAP4(socketpair, int, family, int, type, int, protocol, int __user *, usockvec);
-COMPAT_SYSCALL_WRAP3(bind, int, fd, struct sockaddr __user *, umyaddr, int, addrlen);
-COMPAT_SYSCALL_WRAP3(connect, int, fd, struct sockaddr __user *, uservaddr, int, addrlen);
-COMPAT_SYSCALL_WRAP4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr, int __user *, upeer_addrlen, int, flags);
-COMPAT_SYSCALL_WRAP3(getsockname, int, fd, struct sockaddr __user *, usockaddr, int __user *, usockaddr_len);
-COMPAT_SYSCALL_WRAP3(getpeername, int, fd, struct sockaddr __user *, usockaddr, int __user *, usockaddr_len);
-COMPAT_SYSCALL_WRAP6(sendto, int, fd, void __user *, buff, size_t, len, unsigned int, flags, struct sockaddr __user *, addr, int, addr_len);
-COMPAT_SYSCALL_WRAP3(mlock2, unsigned long, start, size_t, len, int, flags);
-COMPAT_SYSCALL_WRAP6(copy_file_range, int, fd_in, loff_t __user *, off_in, int, fd_out, loff_t __user *, off_out, size_t, len, unsigned int, flags);
-COMPAT_SYSCALL_WRAP2(s390_guarded_storage, int, command, struct gs_cb *, gs_cb);
-COMPAT_SYSCALL_WRAP5(statx, int, dfd, const char __user *, path, unsigned, flags, unsigned, mask, struct statx __user *, buffer);
-COMPAT_SYSCALL_WRAP4(s390_sthyi, unsigned long, code, void __user *, info, u64 __user *, rc, unsigned long, flags);
-COMPAT_SYSCALL_WRAP5(kexec_file_load, int, kernel_fd, int, initrd_fd, unsigned long, cmdline_len, const char __user *, cmdline_ptr, unsigned long, flags)
-COMPAT_SYSCALL_WRAP4(rseq, struct rseq __user *, rseq, u32, rseq_len, int, flags, u32, sig)

arch/s390/kernel/entry.S

···
 	.quad   .Lsie_skip - .Lsie_entry
 #endif
 	.section .rodata, "a"
-#define SYSCALL(esame,emu)	.long esame
+#define SYSCALL(esame,emu)	.long __s390x_ ## esame
 	.globl	sys_call_table
 sys_call_table:
 #include "asm/syscall_table.h"
···
 
 #ifdef CONFIG_COMPAT
 
-#define SYSCALL(esame,emu)	.long emu
+#define SYSCALL(esame,emu)	.long __s390_ ## emu
 	.globl	sys_call_table_emu
 sys_call_table_emu:
 #include "asm/syscall_table.h"

arch/s390/kernel/sys_s390.c

···
 	return error;
 }
 
+#ifdef CONFIG_SYSVIPC
 /*
  * sys_ipc() is the de-multiplexer for the SysV IPC calls.
  */
···
 	 * Therefore we can call the generic variant by simply passing the
 	 * third parameter also as fifth parameter.
 	 */
-	return sys_ipc(call, first, second, third, ptr, third);
+	return ksys_ipc(call, first, second, third, ptr, third);
 }
+#endif /* CONFIG_SYSVIPC */
 
 SYSCALL_DEFINE1(s390_personality, unsigned int, personality)
 {
-	unsigned int ret;
+	unsigned int ret = current->personality;
 
 	if (personality(current->personality) == PER_LINUX32 &&
 	    personality(personality) == PER_LINUX)
 		personality |= PER_LINUX32;
-	ret = sys_personality(personality);
+
+	if (personality != 0xffffffff)
+		set_personality(personality);
+
 	if (personality(ret) == PER_LINUX32)
 		ret &= ~PER_LINUX32;
 
 	return ret;
+}
+
+SYSCALL_DEFINE0(ni_syscall)
+{
+	return -ENOSYS;
 }

arch/s390/kernel/syscalls/syscall.tbl

···
 5    common	open			sys_open			compat_sys_open
 6    common	close			sys_close			sys_close
 7    common	restart_syscall		sys_restart_syscall		sys_restart_syscall
-8    common	creat			sys_creat			compat_sys_creat
-9    common	link			sys_link			compat_sys_link
-10   common	unlink			sys_unlink			compat_sys_unlink
+8    common	creat			sys_creat			sys_creat
+9    common	link			sys_link			sys_link
+10   common	unlink			sys_unlink			sys_unlink
 11   common	execve			sys_execve			compat_sys_execve
-12   common	chdir			sys_chdir			compat_sys_chdir
+12   common	chdir			sys_chdir			sys_chdir
 13   32		time			-				compat_sys_time
-14   common	mknod			sys_mknod			compat_sys_mknod
-15   common	chmod			sys_chmod			compat_sys_chmod
-16   32		lchown			-				compat_sys_s390_lchown16
+14   common	mknod			sys_mknod			sys_mknod
+15   common	chmod			sys_chmod			sys_chmod
+16   32		lchown			-				sys_lchown16
 19   common	lseek			sys_lseek			compat_sys_lseek
 20   common	getpid			sys_getpid			sys_getpid
 21   common	mount			sys_mount			compat_sys_mount
-22   common	umount			sys_oldumount			compat_sys_oldumount
-23   32		setuid			-				compat_sys_s390_setuid16
-24   32		getuid			-				compat_sys_s390_getuid16
+22   common	umount			sys_oldumount			sys_oldumount
+23   32		setuid			-				sys_setuid16
+24   32		getuid			-				sys_getuid16
 25   32		stime			-				compat_sys_stime
 26   common	ptrace			sys_ptrace			compat_sys_ptrace
 27   common	alarm			sys_alarm			sys_alarm
 29   common	pause			sys_pause			sys_pause
 30   common	utime			sys_utime			compat_sys_utime
-33   common	access			sys_access			compat_sys_access
+33   common	access			sys_access			sys_access
 34   common	nice			sys_nice			sys_nice
 36   common	sync			sys_sync			sys_sync
 37   common	kill			sys_kill			sys_kill
-38   common	rename			sys_rename			compat_sys_rename
-39   common	mkdir			sys_mkdir			compat_sys_mkdir
-40   common	rmdir			sys_rmdir			compat_sys_rmdir
+38   common	rename			sys_rename			sys_rename
+39   common	mkdir			sys_mkdir			sys_mkdir
+40   common	rmdir			sys_rmdir			sys_rmdir
 41   common	dup			sys_dup				sys_dup
-42   common	pipe			sys_pipe			compat_sys_pipe
+42   common	pipe			sys_pipe			sys_pipe
 43   common	times			sys_times			compat_sys_times
-45   common	brk			sys_brk				compat_sys_brk
-46   32		setgid			-				compat_sys_s390_setgid16
-47   32		getgid			-				compat_sys_s390_getgid16
-48   common	signal			sys_signal			compat_sys_signal
-49   32		geteuid			-				compat_sys_s390_geteuid16
-50   32		getegid			-				compat_sys_s390_getegid16
-51   common	acct			sys_acct			compat_sys_acct
-52   common	umount2			sys_umount			compat_sys_umount
+45   common	brk			sys_brk				sys_brk
+46   32		setgid			-				sys_setgid16
+47   32		getgid			-				sys_getgid16
+48   common	signal			sys_signal			sys_signal
+49   32		geteuid			-				sys_geteuid16
+50   32		getegid			-				sys_getegid16
+51   common	acct			sys_acct			sys_acct
+52   common	umount2			sys_umount			sys_umount
 54   common	ioctl			sys_ioctl			compat_sys_ioctl
 55   common	fcntl			sys_fcntl			compat_sys_fcntl
 57   common	setpgid			sys_setpgid			sys_setpgid
 60   common	umask			sys_umask			sys_umask
-61   common	chroot			sys_chroot			compat_sys_chroot
+61   common	chroot			sys_chroot			sys_chroot
 62   common	ustat			sys_ustat			compat_sys_ustat
 63   common	dup2			sys_dup2			sys_dup2
 64   common	getppid			sys_getppid			sys_getppid
 65   common	getpgrp			sys_getpgrp			sys_getpgrp
 66   common	setsid			sys_setsid			sys_setsid
 67   common	sigaction		sys_sigaction			compat_sys_sigaction
-70   32		setreuid		-				compat_sys_s390_setreuid16
-71   32		setregid		-				compat_sys_s390_setregid16
-72   common	sigsuspend		sys_sigsuspend			compat_sys_sigsuspend
+70   32		setreuid		-				sys_setreuid16
+71   32		setregid		-				sys_setregid16
+72   common	sigsuspend		sys_sigsuspend			sys_sigsuspend
 73   common	sigpending		sys_sigpending			compat_sys_sigpending
-74   common	sethostname		sys_sethostname			compat_sys_sethostname
+74   common	sethostname		sys_sethostname			sys_sethostname
 75   common	setrlimit		sys_setrlimit			compat_sys_setrlimit
 76   32		getrlimit		-				compat_sys_old_getrlimit
 77   common	getrusage		sys_getrusage			compat_sys_getrusage
 78   common	gettimeofday		sys_gettimeofday		compat_sys_gettimeofday
 79   common	settimeofday		sys_settimeofday		compat_sys_settimeofday
-80   32		getgroups		-				compat_sys_s390_getgroups16
-81   32		setgroups		-				compat_sys_s390_setgroups16
-83   common	symlink			sys_symlink			compat_sys_symlink
-85   common	readlink		sys_readlink			compat_sys_readlink
-86   common	uselib			sys_uselib			compat_sys_uselib
-87   common	swapon			sys_swapon			compat_sys_swapon
-88   common	reboot			sys_reboot			compat_sys_reboot
+80   32		getgroups		-				sys_getgroups16
+81   32		setgroups		-				sys_setgroups16
+83   common	symlink			sys_symlink			sys_symlink
+85   common	readlink		sys_readlink			sys_readlink
+86   common	uselib			sys_uselib			sys_uselib
+87   common	swapon			sys_swapon			sys_swapon
+88   common	reboot			sys_reboot			sys_reboot
 89   common	readdir			-				compat_sys_old_readdir
 90   common	mmap			sys_old_mmap			compat_sys_s390_old_mmap
-91   common	munmap			sys_munmap			compat_sys_munmap
+91   common	munmap			sys_munmap			sys_munmap
 92   common	truncate		sys_truncate			compat_sys_truncate
 93   common	ftruncate		sys_ftruncate			compat_sys_ftruncate
 94   common	fchmod			sys_fchmod			sys_fchmod
-95   32		fchown			-				compat_sys_s390_fchown16
+95   32		fchown			-				sys_fchown16
 96   common	getpriority		sys_getpriority			sys_getpriority
 97   common	setpriority		sys_setpriority			sys_setpriority
 99   common	statfs			sys_statfs			compat_sys_statfs
 100  common	fstatfs			sys_fstatfs			compat_sys_fstatfs
 101  32		ioperm			-				-
 102  common	socketcall		sys_socketcall			compat_sys_socketcall
-103  common	syslog			sys_syslog			compat_sys_syslog
+103  common	syslog			sys_syslog			sys_syslog
 104  common	setitimer		sys_setitimer			compat_sys_setitimer
 105  common	getitimer		sys_getitimer			compat_sys_getitimer
 106  common	stat			sys_newstat			compat_sys_newstat
···
 111  common	vhangup			sys_vhangup			sys_vhangup
 112  common	idle			-				-
 114  common	wait4			sys_wait4			compat_sys_wait4
-115  common	swapoff			sys_swapoff			compat_sys_swapoff
+115  common	swapoff			sys_swapoff			sys_swapoff
 116  common	sysinfo			sys_sysinfo			compat_sys_sysinfo
 117  common	ipc			sys_s390_ipc			compat_sys_s390_ipc
 118  common	fsync			sys_fsync			sys_fsync
 119  common	sigreturn		sys_sigreturn			compat_sys_sigreturn
-120  common	clone			sys_clone			compat_sys_clone
-121  common	setdomainname		sys_setdomainname		compat_sys_setdomainname
-122  common	uname			sys_newuname			compat_sys_newuname
+120  common	clone			sys_clone			sys_clone
+121  common	setdomainname		sys_setdomainname		sys_setdomainname
+122  common	uname			sys_newuname			sys_newuname
 124  common	adjtimex		sys_adjtimex			compat_sys_adjtimex
-125  common	mprotect		sys_mprotect			compat_sys_mprotect
+125  common	mprotect		sys_mprotect			sys_mprotect
 126  common	sigprocmask		sys_sigprocmask			compat_sys_sigprocmask
 127  common	create_module		-				-
-128  common	init_module		sys_init_module			compat_sys_init_module
-129  common	delete_module		sys_delete_module		compat_sys_delete_module
+128  common	init_module		sys_init_module			sys_init_module
+129  common	delete_module		sys_delete_module		sys_delete_module
 130  common	get_kernel_syms		-				-
-131  common	quotactl		sys_quotactl			compat_sys_quotactl
+131  common	quotactl		sys_quotactl			sys_quotactl
 132  common	getpgid			sys_getpgid			sys_getpgid
 133  common	fchdir			sys_fchdir			sys_fchdir
-134  common	bdflush			sys_bdflush			compat_sys_bdflush
-135  common	sysfs			sys_sysfs			compat_sys_sysfs
+134  common	bdflush			sys_bdflush			sys_bdflush
+135  common	sysfs			sys_sysfs			sys_sysfs
 136  common	personality		sys_s390_personality		sys_s390_personality
 137  common	afs_syscall		-				-
-138  32		setfsuid		-				compat_sys_s390_setfsuid16
-139  32		setfsgid		-				compat_sys_s390_setfsgid16
-140  32		_llseek			-				compat_sys_llseek
+138  32		setfsuid		-				sys_setfsuid16
+139  32		setfsgid		-				sys_setfsgid16
+140  32		_llseek			-				sys_llseek
 141  common	getdents		sys_getdents			compat_sys_getdents
 142  32		_newselect		-				compat_sys_select
 142  64		select			sys_select			-
 143  common	flock			sys_flock			sys_flock
-144  common	msync			sys_msync			compat_sys_msync
+144  common	msync			sys_msync			sys_msync
 145  common	readv			sys_readv			compat_sys_readv
 146  common	writev			sys_writev			compat_sys_writev
 147  common	getsid			sys_getsid			sys_getsid
 148  common	fdatasync		sys_fdatasync			sys_fdatasync
 149  common	_sysctl			sys_sysctl			compat_sys_sysctl
-150  common	mlock			sys_mlock			compat_sys_mlock
-151  common	munlock			sys_munlock			compat_sys_munlock
+150  common	mlock			sys_mlock			sys_mlock
+151  common	munlock			sys_munlock			sys_munlock
 152  common	mlockall		sys_mlockall			sys_mlockall
 153  common	munlockall		sys_munlockall			sys_munlockall
-154  common	sched_setparam		sys_sched_setparam		compat_sys_sched_setparam
-155  common	sched_getparam		sys_sched_getparam		compat_sys_sched_getparam
-156  common	sched_setscheduler	sys_sched_setscheduler		compat_sys_sched_setscheduler
+154  common	sched_setparam		sys_sched_setparam		sys_sched_setparam
+155  common	sched_getparam		sys_sched_getparam		sys_sched_getparam
+156  common	sched_setscheduler	sys_sched_setscheduler		sys_sched_setscheduler
 157  common	sched_getscheduler	sys_sched_getscheduler		sys_sched_getscheduler
 158  common	sched_yield		sys_sched_yield			sys_sched_yield
 159  common	sched_get_priority_max	sys_sched_get_priority_max	sys_sched_get_priority_max
 160  common	sched_get_priority_min	sys_sched_get_priority_min	sys_sched_get_priority_min
 161  common	sched_rr_get_interval	sys_sched_rr_get_interval	compat_sys_sched_rr_get_interval
 162  common	nanosleep		sys_nanosleep			compat_sys_nanosleep
-163  common	mremap			sys_mremap			compat_sys_mremap
-164  32		setresuid		-				compat_sys_s390_setresuid16
-165  32		getresuid		-				compat_sys_s390_getresuid16
+163  common	mremap			sys_mremap			sys_mremap
+164  32		setresuid		-				sys_setresuid16
+165  32		getresuid		-				sys_getresuid16
 167  common	query_module		-				-
-168  common	poll			sys_poll			compat_sys_poll
+168  common	poll			sys_poll			sys_poll
 169  common	nfsservctl		-				-
-170  32		setresgid		-				compat_sys_s390_setresgid16
-171  32		getresgid		-				compat_sys_s390_getresgid16
-172  common	prctl			sys_prctl			compat_sys_prctl
+170  32		setresgid		-				sys_setresgid16
+171  32		getresgid		-				sys_getresgid16
+172  common	prctl			sys_prctl			sys_prctl
 173  common	rt_sigreturn		sys_rt_sigreturn		compat_sys_rt_sigreturn
 174  common	rt_sigaction		sys_rt_sigaction		compat_sys_rt_sigaction
 175  common	rt_sigprocmask		sys_rt_sigprocmask		compat_sys_rt_sigprocmask
···
 179  common	rt_sigsuspend		sys_rt_sigsuspend		compat_sys_rt_sigsuspend
 180  common	pread64			sys_pread64			compat_sys_s390_pread64
 181  common	pwrite64		sys_pwrite64			compat_sys_s390_pwrite64
-182  32		chown			-				compat_sys_s390_chown16
-183  common	getcwd			sys_getcwd			compat_sys_getcwd
-184  common	capget			sys_capget			compat_sys_capget
-185  common	capset			sys_capset			compat_sys_capset
+182  32		chown			-				sys_chown16
+183  common	getcwd			sys_getcwd			sys_getcwd
+184  common	capget			sys_capget			sys_capget
+185  common	capset			sys_capset			sys_capset
 186  common	sigaltstack		sys_sigaltstack			compat_sys_sigaltstack
 187  common	sendfile		sys_sendfile64			compat_sys_sendfile
 188  common	getpmsg			-				-
···
 195  32		stat64			-				compat_sys_s390_stat64
 196  32		lstat64			-				compat_sys_s390_lstat64
 197  32		fstat64			-				compat_sys_s390_fstat64
-198  32		lchown32		-				compat_sys_lchown
+198  32		lchown32		-				sys_lchown
 198  64		lchown			sys_lchown			-
 199  32		getuid32		-				sys_getuid
 199  64		getuid			sys_getuid			-
···
 203  64		setreuid		sys_setreuid			-
 204  32		setregid32		-				sys_setregid
 204  64		setregid		sys_setregid			-
-205  32		getgroups32		-				compat_sys_getgroups
+205  32		getgroups32		-				sys_getgroups
 205  64		getgroups		sys_getgroups			-
-206  32		setgroups32		-				compat_sys_setgroups
+206  32		setgroups32		-				sys_setgroups
 206  64		setgroups		sys_setgroups			-
 207  32		fchown32		-				sys_fchown
 207  64		fchown			sys_fchown			-
 208  32		setresuid32		-				sys_setresuid
 208  64		setresuid		sys_setresuid			-
-209  32		getresuid32		-				compat_sys_getresuid
+209  32		getresuid32		-				sys_getresuid
 209  64		getresuid		sys_getresuid			-
 210  32		setresgid32		-				sys_setresgid
 210  64		setresgid		sys_setresgid			-
-211  32		getresgid32		-				compat_sys_getresgid
+211  32		getresgid32		-				sys_getresgid
 211  64		getresgid		sys_getresgid			-
-212  32		chown32			-				compat_sys_chown
+212  32		chown32			-				sys_chown
 212  64		chown			sys_chown			-
 213  32		setuid32		-				sys_setuid
 213  64		setuid			sys_setuid			-
···
 215  64		setfsuid		sys_setfsuid			-
 216  32		setfsgid32		-				sys_setfsgid
 216  64		setfsgid		sys_setfsgid			-
-217  common	pivot_root		sys_pivot_root			compat_sys_pivot_root
-218  common	mincore			sys_mincore			compat_sys_mincore
-219  common	madvise			sys_madvise			compat_sys_madvise
-220  common	getdents64		sys_getdents64			compat_sys_getdents64
+217  common	pivot_root		sys_pivot_root			sys_pivot_root
+218  common	mincore			sys_mincore			sys_mincore
+219  common	madvise			sys_madvise			sys_madvise
+220  common	getdents64		sys_getdents64			sys_getdents64
 221  32		fcntl64			-				compat_sys_fcntl64
 222  common	readahead		sys_readahead			compat_sys_s390_readahead
 223  32		sendfile64		-				compat_sys_sendfile64
-224  common	setxattr		sys_setxattr			compat_sys_setxattr
-225  common	lsetxattr		sys_lsetxattr			compat_sys_lsetxattr
-226  common	fsetxattr		sys_fsetxattr			compat_sys_fsetxattr
-227  common	getxattr		sys_getxattr			compat_sys_getxattr
-228  common	lgetxattr		sys_lgetxattr			compat_sys_lgetxattr
-229  common	fgetxattr		sys_fgetxattr			compat_sys_fgetxattr
-230  common	listxattr		sys_listxattr			compat_sys_listxattr
-231  common	llistxattr		sys_llistxattr			compat_sys_llistxattr
-232  common	flistxattr		sys_flistxattr			compat_sys_flistxattr
-233  common	removexattr		sys_removexattr			compat_sys_removexattr
-234  common	lremovexattr		sys_lremovexattr		compat_sys_lremovexattr
-235  common	fremovexattr		sys_fremovexattr		compat_sys_fremovexattr
+224  common	setxattr		sys_setxattr			sys_setxattr
+225  common	lsetxattr		sys_lsetxattr			sys_lsetxattr
+226  common	fsetxattr		sys_fsetxattr			sys_fsetxattr
+227  common	getxattr		sys_getxattr			sys_getxattr
+228  common	lgetxattr		sys_lgetxattr			sys_lgetxattr
+229  common	fgetxattr		sys_fgetxattr			sys_fgetxattr
+230  common	listxattr		sys_listxattr			sys_listxattr
+231  common	llistxattr		sys_llistxattr			sys_llistxattr
+232  common	flistxattr		sys_flistxattr			sys_flistxattr
+233  common	removexattr		sys_removexattr			sys_removexattr
+234  common	lremovexattr		sys_lremovexattr		sys_lremovexattr
+235  common	fremovexattr		sys_fremovexattr		sys_fremovexattr
 236  common	gettid			sys_gettid			sys_gettid
 237  common	tkill			sys_tkill			sys_tkill
 238  common	futex			sys_futex			compat_sys_futex
···
 240  common	sched_getaffinity	sys_sched_getaffinity		compat_sys_sched_getaffinity
 241  common	tgkill			sys_tgkill			sys_tgkill
 243  common	io_setup		sys_io_setup			compat_sys_io_setup
-244  common	io_destroy		sys_io_destroy			compat_sys_io_destroy
+244  common	io_destroy		sys_io_destroy			sys_io_destroy
 245  common	io_getevents		sys_io_getevents		compat_sys_io_getevents
 246  common	io_submit		sys_io_submit			compat_sys_io_submit
-247  common	io_cancel		sys_io_cancel			compat_sys_io_cancel
+247  common	io_cancel		sys_io_cancel			sys_io_cancel
 248  common	exit_group		sys_exit_group			sys_exit_group
 249  common	epoll_create		sys_epoll_create		sys_epoll_create
-250  common	epoll_ctl		sys_epoll_ctl			compat_sys_epoll_ctl
-251  common	epoll_wait		sys_epoll_wait			compat_sys_epoll_wait
-252  common	set_tid_address		sys_set_tid_address		compat_sys_set_tid_address
+250  common	epoll_ctl		sys_epoll_ctl			sys_epoll_ctl
+251  common	epoll_wait		sys_epoll_wait			sys_epoll_wait
+252  common	set_tid_address		sys_set_tid_address		sys_set_tid_address
 253  common	fadvise64		sys_fadvise64_64		compat_sys_s390_fadvise64
 254  common	timer_create		sys_timer_create		compat_sys_timer_create
 255  common	timer_settime		sys_timer_settime		compat_sys_timer_settime
···
 264  32		fadvise64_64		-				compat_sys_s390_fadvise64_64
 265  common	statfs64		sys_statfs64			compat_sys_statfs64
 266  common	fstatfs64		sys_fstatfs64			compat_sys_fstatfs64
-267  common	remap_file_pages	sys_remap_file_pages		compat_sys_remap_file_pages
+267  common	remap_file_pages	sys_remap_file_pages		sys_remap_file_pages
 268  common	mbind			sys_mbind			compat_sys_mbind
 269  common	get_mempolicy		sys_get_mempolicy		compat_sys_get_mempolicy
 270  common	set_mempolicy		sys_set_mempolicy		compat_sys_set_mempolicy
 271  common	mq_open			sys_mq_open			compat_sys_mq_open
-272  common	mq_unlink		sys_mq_unlink			compat_sys_mq_unlink
+272  common	mq_unlink		sys_mq_unlink			sys_mq_unlink
 273  common	mq_timedsend		sys_mq_timedsend		compat_sys_mq_timedsend
 274  common	mq_timedreceive		sys_mq_timedreceive		compat_sys_mq_timedreceive
 275  common	mq_notify		sys_mq_notify			compat_sys_mq_notify
 276  common	mq_getsetattr		sys_mq_getsetattr		compat_sys_mq_getsetattr
 277  common	kexec_load		sys_kexec_load			compat_sys_kexec_load
-278  common	add_key			sys_add_key			compat_sys_add_key
-279  common	request_key		sys_request_key			compat_sys_request_key
+278  common	add_key			sys_add_key			sys_add_key
+279  common	request_key		sys_request_key			sys_request_key
 280  common	keyctl			sys_keyctl			compat_sys_keyctl
 281  common	waitid			sys_waitid			compat_sys_waitid
 282  common	ioprio_set		sys_ioprio_set			sys_ioprio_set
 283  common	ioprio_get		sys_ioprio_get			sys_ioprio_get
 284  common	inotify_init		sys_inotify_init		sys_inotify_init
-285  common	inotify_add_watch	sys_inotify_add_watch		compat_sys_inotify_add_watch
+285  common	inotify_add_watch	sys_inotify_add_watch		sys_inotify_add_watch
 286  common	inotify_rm_watch	sys_inotify_rm_watch		sys_inotify_rm_watch
 287  common	migrate_pages		sys_migrate_pages		compat_sys_migrate_pages
 288  common	openat			sys_openat			compat_sys_openat
-289  common	mkdirat			sys_mkdirat			compat_sys_mkdirat
-290  common	mknodat			sys_mknodat			compat_sys_mknodat
-291  common	fchownat		sys_fchownat			compat_sys_fchownat
+289  common	mkdirat			sys_mkdirat			sys_mkdirat
+290  common	mknodat			sys_mknodat			sys_mknodat
+291  common	fchownat		sys_fchownat			sys_fchownat
 292  common	futimesat		sys_futimesat			compat_sys_futimesat
 293  32		fstatat64		-				compat_sys_s390_fstatat64
 293  64		newfstatat		sys_newfstatat			-
-294  common	unlinkat		sys_unlinkat			compat_sys_unlinkat
-295  common	renameat		sys_renameat			compat_sys_renameat
-296  common	linkat			sys_linkat			compat_sys_linkat
-297  common	symlinkat		sys_symlinkat			compat_sys_symlinkat
-298  common	readlinkat		sys_readlinkat			compat_sys_readlinkat
-299  common	fchmodat		sys_fchmodat			compat_sys_fchmodat
-300  common	faccessat		sys_faccessat			compat_sys_faccessat
+294  common	unlinkat		sys_unlinkat			sys_unlinkat
+295  common	renameat		sys_renameat			sys_renameat
+296  common	linkat			sys_linkat			sys_linkat
+297  common	symlinkat		sys_symlinkat			sys_symlinkat
+298  common	readlinkat		sys_readlinkat			sys_readlinkat
+299  common	fchmodat		sys_fchmodat			sys_fchmodat
+300  common	faccessat		sys_faccessat			sys_faccessat
 301  common	pselect6		sys_pselect6			compat_sys_pselect6
 302  common	ppoll			sys_ppoll			compat_sys_ppoll
-303  common	unshare			sys_unshare			compat_sys_unshare
+303  common	unshare			sys_unshare			sys_unshare
 304  common	set_robust_list		sys_set_robust_list		compat_sys_set_robust_list
 305  common	get_robust_list		sys_get_robust_list		compat_sys_get_robust_list
-306  common	splice			sys_splice			compat_sys_splice
+306  common	splice			sys_splice			sys_splice
 307  common	sync_file_range		sys_sync_file_range		compat_sys_s390_sync_file_range
-308  common	tee			sys_tee				compat_sys_tee
+308  common	tee			sys_tee				sys_tee
 309  common	vmsplice		sys_vmsplice			compat_sys_vmsplice
 310  common	move_pages		sys_move_pages			compat_sys_move_pages
-311  common	getcpu			sys_getcpu			compat_sys_getcpu
+311  common	getcpu			sys_getcpu			sys_getcpu
 312  common	epoll_pwait		sys_epoll_pwait			compat_sys_epoll_pwait
 313  common	utimes			sys_utimes			compat_sys_utimes
 314  common	fallocate		sys_fallocate			compat_sys_s390_fallocate
···
 322  common	signalfd4		sys_signalfd4			compat_sys_signalfd4
 323  common	eventfd2		sys_eventfd2			sys_eventfd2
 324  common	inotify_init1		sys_inotify_init1		sys_inotify_init1
-325  common	pipe2			sys_pipe2			compat_sys_pipe2
+325  common	pipe2			sys_pipe2			sys_pipe2
 326  common	dup3			sys_dup3			sys_dup3
 327  common	epoll_create1		sys_epoll_create1		sys_epoll_create1
 328  common	preadv			sys_preadv			compat_sys_preadv
 329  common	pwritev			sys_pwritev			compat_sys_pwritev
 330  common	rt_tgsigqueueinfo	sys_rt_tgsigqueueinfo		compat_sys_rt_tgsigqueueinfo
-331  common	perf_event_open		sys_perf_event_open		compat_sys_perf_event_open
+331  common	perf_event_open		sys_perf_event_open		sys_perf_event_open
 332  common	fanotify_init		sys_fanotify_init		sys_fanotify_init
 333  common	fanotify_mark		sys_fanotify_mark		compat_sys_fanotify_mark
-334  common	prlimit64		sys_prlimit64			compat_sys_prlimit64
-335  common	name_to_handle_at	sys_name_to_handle_at		compat_sys_name_to_handle_at
+334  common	prlimit64		sys_prlimit64			sys_prlimit64
+335  common	name_to_handle_at	sys_name_to_handle_at		sys_name_to_handle_at
 336  common	open_by_handle_at	sys_open_by_handle_at		compat_sys_open_by_handle_at
 337  common	clock_adjtime		sys_clock_adjtime		compat_sys_clock_adjtime
 338  common	syncfs			sys_syncfs			sys_syncfs
···
 340  common	process_vm_readv	sys_process_vm_readv		compat_sys_process_vm_readv
 341  common	process_vm_writev	sys_process_vm_writev		compat_sys_process_vm_writev
 342  common	s390_runtime_instr	sys_s390_runtime_instr		sys_s390_runtime_instr
-343  common	kcmp			sys_kcmp			compat_sys_kcmp
-344  common	finit_module		sys_finit_module		compat_sys_finit_module
-345  common	sched_setattr		sys_sched_setattr		compat_sys_sched_setattr
-346  common	sched_getattr		sys_sched_getattr		compat_sys_sched_getattr
-347  common	renameat2		sys_renameat2			compat_sys_renameat2
-348  common	seccomp			sys_seccomp			compat_sys_seccomp
-349  common	getrandom		sys_getrandom			compat_sys_getrandom
-350  common	memfd_create		sys_memfd_create		compat_sys_memfd_create
-351  common	bpf			sys_bpf				compat_sys_bpf
-352  common	s390_pci_mmio_write	sys_s390_pci_mmio_write		compat_sys_s390_pci_mmio_write
-353  common	s390_pci_mmio_read	sys_s390_pci_mmio_read		compat_sys_s390_pci_mmio_read
+343  common	kcmp			sys_kcmp			sys_kcmp
+344  common	finit_module		sys_finit_module		sys_finit_module
+345  common	sched_setattr		sys_sched_setattr		sys_sched_setattr
+346  common	sched_getattr		sys_sched_getattr		sys_sched_getattr
+347  common	renameat2		sys_renameat2			sys_renameat2
+348  common	seccomp			sys_seccomp			sys_seccomp
+349  common	getrandom		sys_getrandom			sys_getrandom
+350  common	memfd_create		sys_memfd_create		sys_memfd_create
+351  common	bpf			sys_bpf				sys_bpf
+352  common	s390_pci_mmio_write	sys_s390_pci_mmio_write		sys_s390_pci_mmio_write
+353  common	s390_pci_mmio_read	sys_s390_pci_mmio_read		sys_s390_pci_mmio_read
 354  common	execveat		sys_execveat			compat_sys_execveat
 355  common	userfaultfd		sys_userfaultfd			sys_userfaultfd
 356  common	membarrier		sys_membarrier			sys_membarrier
 357  common	recvmmsg		sys_recvmmsg			compat_sys_recvmmsg
 358  common	sendmmsg		sys_sendmmsg			compat_sys_sendmmsg
 359  common	socket			sys_socket			sys_socket
-360  common	socketpair		sys_socketpair			compat_sys_socketpair
-361  common	bind			sys_bind			compat_sys_bind
-362  common	connect			sys_connect			compat_sys_connect
+360  common	socketpair		sys_socketpair			sys_socketpair
+361  common	bind			sys_bind			sys_bind
+362  common	connect			sys_connect			sys_connect
 363  common	listen			sys_listen			sys_listen
-364  common	accept4			sys_accept4			compat_sys_accept4
+364  common	accept4			sys_accept4			sys_accept4
 365  common	getsockopt		sys_getsockopt			compat_sys_getsockopt
 366  common	setsockopt		sys_setsockopt			compat_sys_setsockopt
-367  common	getsockname		sys_getsockname			compat_sys_getsockname
-368  common	getpeername		sys_getpeername			compat_sys_getpeername
-369  common	sendto			sys_sendto			compat_sys_sendto
+367  common	getsockname		sys_getsockname			sys_getsockname
+368  common	getpeername		sys_getpeername			sys_getpeername
+369  common	sendto			sys_sendto			sys_sendto
 370  common	sendmsg			sys_sendmsg			compat_sys_sendmsg
 371  common	recvfrom		sys_recvfrom			compat_sys_recvfrom
 372  common	recvmsg			sys_recvmsg			compat_sys_recvmsg
 373  common	shutdown		sys_shutdown			sys_shutdown
-374  common	mlock2			sys_mlock2			compat_sys_mlock2
-375  common	copy_file_range		sys_copy_file_range		compat_sys_copy_file_range
+374  common	mlock2			sys_mlock2			sys_mlock2
+375  common	copy_file_range		sys_copy_file_range		sys_copy_file_range
 376  common	preadv2			sys_preadv2			compat_sys_preadv2
 377  common	pwritev2		sys_pwritev2			compat_sys_pwritev2
-378  common	s390_guarded_storage	sys_s390_guarded_storage	compat_sys_s390_guarded_storage
-379  common	statx			sys_statx			compat_sys_statx
-380  common	s390_sthyi		sys_s390_sthyi			compat_sys_s390_sthyi
-381  common	kexec_file_load		sys_kexec_file_load		compat_sys_kexec_file_load
+378  common	s390_guarded_storage	sys_s390_guarded_storage	sys_s390_guarded_storage
+379  common	statx			sys_statx			sys_statx
+380  common	s390_sthyi		sys_s390_sthyi			sys_s390_sthyi
+381  common	kexec_file_load		sys_kexec_file_load		sys_kexec_file_load
 382  common	io_pgetevents		sys_io_pgetevents		compat_sys_io_pgetevents
-383  common	rseq			sys_rseq			compat_sys_rseq
+383  common	rseq			sys_rseq			sys_rseq
+384  common	pkey_mprotect		sys_pkey_mprotect		sys_pkey_mprotect
+385  common	pkey_alloc		sys_pkey_alloc			sys_pkey_alloc
+386  common	pkey_free		sys_pkey_free			sys_pkey_free
+# room for arch specific syscalls
+392	64	semtimedop		sys_semtimedop			-
+393  common	semget			sys_semget			sys_semget
+394  common	semctl			sys_semctl			compat_sys_semctl
+395  common	shmget			sys_shmget			sys_shmget
+396  common	shmctl			sys_shmctl			compat_sys_shmctl
+397  common	shmat			sys_shmat			compat_sys_shmat
+398  common	shmdt			sys_shmdt 			sys_shmdt
+399  common	msgget			sys_msgget			sys_msgget
+400  common	msgsnd			sys_msgsnd			compat_sys_msgsnd
+401  common	msgrcv			sys_msgrcv			compat_sys_msgrcv
+402  common	msgctl			sys_msgctl			compat_sys_msgctl

arch/sh/include/uapi/asm/unistd_32.h

···
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef __ASM_SH_UNISTD_32_H
-#define __ASM_SH_UNISTD_32_H
-
-/*
- * Copyright (C) 1999  Niibe Yutaka
- */
-
-/*
- * This file contains the system call numbers.
- */
-
-#define __NR_restart_syscall	  0
-#define __NR_exit		  1
-#define __NR_fork		  2
-#define __NR_read		  3
-#define __NR_write		  4
-#define __NR_open		  5
-#define __NR_close		  6
-#define __NR_waitpid		  7
-#define __NR_creat		  8
-#define __NR_link		  9
-#define __NR_unlink		 10
-#define __NR_execve		 11
-#define __NR_chdir		 12
-#define __NR_time		 13
-#define __NR_mknod		 14
-#define __NR_chmod		 15
-#define __NR_lchown		 16
-				 /* 17 was sys_break */
-#define __NR_oldstat		 18
-#define __NR_lseek		 19
-#define __NR_getpid		 20
-#define __NR_mount		 21
-#define __NR_umount		 22
-#define __NR_setuid		 23
-#define __NR_getuid		 24
-#define __NR_stime		 25
-#define __NR_ptrace		 26
-#define __NR_alarm		 27
-#define __NR_oldfstat		 28
-#define __NR_pause		 29
-#define __NR_utime		 30
-				 /* 31 was sys_stty */
-				 /* 32 was sys_gtty */
-#define __NR_access		 33
-#define __NR_nice		 34
-				 /* 35 was sys_ftime */
-#define __NR_sync		 36
-#define __NR_kill		 37
-#define __NR_rename		 38
-#define __NR_mkdir		 39
-#define __NR_rmdir		 40
-#define __NR_dup		 41
-#define __NR_pipe		 42
-#define __NR_times		 43
-				 /* 44 was sys_prof */
-#define __NR_brk		 45
-#define __NR_setgid		 46
-#define __NR_getgid		 47
-#define __NR_signal		 48
-#define __NR_geteuid		 49
-#define __NR_getegid		 50
-#define __NR_acct		 51
-#define __NR_umount2		 52
-				 /* 53 was sys_lock */
-#define __NR_ioctl		 54
-#define __NR_fcntl		 55
-				 /* 56 was sys_mpx */
-#define __NR_setpgid		 57
-				 /* 58 was sys_ulimit */
-				 /* 59 was sys_olduname */
-#define __NR_umask		 60
-#define __NR_chroot		 61
-#define __NR_ustat		 62
-#define __NR_dup2		 63
-#define __NR_getppid		 64
-#define __NR_getpgrp		 65
-#define __NR_setsid		 66
-#define __NR_sigaction		 67
-#define __NR_sgetmask		 68
-#define __NR_ssetmask		 69
-#define __NR_setreuid		 70
-#define __NR_setregid		 71
-#define __NR_sigsuspend		 72
-#define __NR_sigpending		 73
-#define __NR_sethostname	 74
-#define __NR_setrlimit		 75
-#define __NR_getrlimit		 76	/* Back compatible 2Gig limited rlimit */
-#define __NR_getrusage		 77
-#define __NR_gettimeofday	 78
-#define __NR_settimeofday	 79
-#define __NR_getgroups		 80
-#define __NR_setgroups		 81
-				 /* 82 was sys_oldselect */
-#define __NR_symlink		 83
-#define __NR_oldlstat		 84
-#define __NR_readlink		 85
-#define __NR_uselib		 86
-#define __NR_swapon		 87
-#define __NR_reboot		 88
-#define __NR_readdir		 89
-#define __NR_mmap		 90
-#define __NR_munmap		 91
-#define __NR_truncate		 92
-#define __NR_ftruncate		 93
-#define __NR_fchmod		 94
-#define __NR_fchown		 95
-#define __NR_getpriority	 96
-#define __NR_setpriority	 97
-				 /* 98 was sys_profil */
-#define __NR_statfs		 99
-#define __NR_fstatfs		100
-				/* 101 was sys_ioperm */
-#define __NR_socketcall		102
-#define __NR_syslog		103
-#define __NR_setitimer		104
-#define __NR_getitimer		105
-#define __NR_stat		106
-#define __NR_lstat		107
-#define __NR_fstat		108
-#define __NR_olduname		109
-				/* 110 was sys_iopl */
-#define __NR_vhangup		111
-				/* 112 was sys_idle */
-				/* 113 was sys_vm86old */
-#define __NR_wait4		114
-#define __NR_swapoff		115
-#define __NR_sysinfo		116
-#define __NR_ipc		117
-#define __NR_fsync		118
-#define __NR_sigreturn		119
-#define __NR_clone		120
-#define __NR_setdomainname	121
-#define __NR_uname		122
-#define __NR_cacheflush		123
-#define __NR_adjtimex		124
-#define __NR_mprotect		125
-#define __NR_sigprocmask	126
-				/* 127 was sys_create_module */
-#define __NR_init_module	128
-#define __NR_delete_module	129
-				/* 130 was sys_get_kernel_syms */
-#define __NR_quotactl		131
-#define __NR_getpgid		132
-#define __NR_fchdir		133
-#define __NR_bdflush		134
-#define __NR_sysfs		135
-#define __NR_personality	136
-				/* 137 was sys_afs_syscall */
-#define __NR_setfsuid		138
-#define __NR_setfsgid		139
-#define __NR__llseek		140
-#define __NR_getdents		141
-#define __NR__newselect		142
-#define __NR_flock		143
-#define __NR_msync		144
-#define __NR_readv		145
-#define __NR_writev		146
-#define __NR_getsid		147
-#define __NR_fdatasync		148
-#define __NR__sysctl		149
-#define __NR_mlock		150
-#define __NR_munlock		151
-#define __NR_mlockall		152
-#define __NR_munlockall		153
-#define __NR_sched_setparam		154
-#define __NR_sched_getparam		155
-#define __NR_sched_setscheduler		156
-#define __NR_sched_getscheduler		157
-#define __NR_sched_yield		158
-#define __NR_sched_get_priority_max	159
-#define __NR_sched_get_priority_min	160
-#define __NR_sched_rr_get_interval	161
-#define __NR_nanosleep		162
-#define __NR_mremap		163
-#define __NR_setresuid		164
-#define __NR_getresuid		165
-				/* 166 was sys_vm86 */
-				/* 167 was sys_query_module */
-#define __NR_poll		168
-#define __NR_nfsservctl		169
-#define __NR_setresgid		170
-#define __NR_getresgid		171
-#define __NR_prctl              172
-#define __NR_rt_sigreturn	173
-#define __NR_rt_sigaction	174
-#define __NR_rt_sigprocmask	175
-#define __NR_rt_sigpending	176
-#define __NR_rt_sigtimedwait	177
-#define __NR_rt_sigqueueinfo	178
-#define __NR_rt_sigsuspend	179
-#define __NR_pread64		180
-#define __NR_pwrite64		181
-#define __NR_chown		182
-#define __NR_getcwd		183
-#define __NR_capget		184
-#define __NR_capset		185
-#define __NR_sigaltstack	186
-#define __NR_sendfile		187
-				/* 188 reserved for sys_getpmsg */
-				/* 189 reserved for sys_putpmsg */
-#define __NR_vfork		190
-#define __NR_ugetrlimit		191	/* SuS compliant getrlimit */
-#define __NR_mmap2		192
-#define __NR_truncate64		193
-#define __NR_ftruncate64	194
-#define __NR_stat64		195
-#define __NR_lstat64		196
-#define __NR_fstat64		197
-#define __NR_lchown32		198
-#define __NR_getuid32		199
-#define __NR_getgid32		200
-#define __NR_geteuid32		201
-#define __NR_getegid32		202
-#define __NR_setreuid32		203
-#define __NR_setregid32		204
-#define __NR_getgroups32	205
-#define __NR_setgroups32	206
-#define __NR_fchown32		207
-#define __NR_setresuid32	208
-#define __NR_getresuid32	209
-#define __NR_setresgid32	210
-#define __NR_getresgid32	211
-#define __NR_chown32		212
-#define __NR_setuid32		213
-#define __NR_setgid32		214
-#define __NR_setfsuid32		215
-#define __NR_setfsgid32		216
-#define __NR_pivot_root		217
-#define __NR_mincore		218
-#define __NR_madvise		219
-#define __NR_getdents64		220
-#define __NR_fcntl64		221
-				/* 222 is reserved for tux */
-				/* 223 is unused */
-#define __NR_gettid		224
-#define __NR_readahead		225
-#define __NR_setxattr		226
-#define __NR_lsetxattr		227
-#define __NR_fsetxattr		228
-#define __NR_getxattr		229
-#define __NR_lgetxattr		230
-#define __NR_fgetxattr		231
-#define __NR_listxattr		232
-#define __NR_llistxattr		233
-#define __NR_flistxattr		234
-#define __NR_removexattr	235
-#define __NR_lremovexattr	236
-#define __NR_fremovexattr	237
-#define __NR_tkill		238
-#define __NR_sendfile64		239
-#define __NR_futex		240
-#define __NR_sched_setaffinity	241
-#define __NR_sched_getaffinity	242
-				/* 243 is reserved for set_thread_area */
-				/* 244 is reserved for get_thread_area */
-#define __NR_io_setup		245
-#define __NR_io_destroy		246
-#define __NR_io_getevents	247
-#define __NR_io_submit		248
-#define __NR_io_cancel		249
-#define __NR_fadvise64		250
-				/* 251 is unused */
-#define __NR_exit_group		252
-#define __NR_lookup_dcookie	253
-#define __NR_epoll_create	254
-#define __NR_epoll_ctl		255
-#define __NR_epoll_wait		256
-#define __NR_remap_file_pages	257
-#define __NR_set_tid_address	258
-#define __NR_timer_create	259
-#define __NR_timer_settime	(__NR_timer_create+1)
-#define __NR_timer_gettime	(__NR_timer_create+2)
-#define __NR_timer_getoverrun	(__NR_timer_create+3)
-#define __NR_timer_delete	(__NR_timer_create+4)
-#define __NR_clock_settime	(__NR_timer_create+5)
-#define __NR_clock_gettime	(__NR_timer_create+6)
-#define __NR_clock_getres	(__NR_timer_create+7)
-#define __NR_clock_nanosleep	(__NR_timer_create+8)
-#define __NR_statfs64		268
-#define __NR_fstatfs64		269
-#define __NR_tgkill		270
-#define __NR_utimes		271
-#define __NR_fadvise64_64	272
-				/* 273 is reserved for vserver */
-#define __NR_mbind              274
-#define __NR_get_mempolicy      275
-#define __NR_set_mempolicy      276
-#define __NR_mq_open            277
-#define __NR_mq_unlink          (__NR_mq_open+1)
-#define __NR_mq_timedsend       (__NR_mq_open+2)
-#define __NR_mq_timedreceive    (__NR_mq_open+3)
-#define __NR_mq_notify          (__NR_mq_open+4)
-#define __NR_mq_getsetattr      (__NR_mq_open+5)
-#define __NR_kexec_load		283
-#define __NR_waitid		284
-#define __NR_add_key		285
-#define __NR_request_key	286
-#define __NR_keyctl		287
-#define __NR_ioprio_set		288
-#define __NR_ioprio_get		289
-#define __NR_inotify_init	290
-#define __NR_inotify_add_watch	291
-#define __NR_inotify_rm_watch	292
-				/* 293 is unused */
-#define __NR_migrate_pages	294
-#define __NR_openat		295
-#define __NR_mkdirat		296
-#define __NR_mknodat		297
-#define __NR_fchownat		298
-#define __NR_futimesat		299
-#define __NR_fstatat64		300
-#define __NR_unlinkat		301
-#define __NR_renameat		302
-#define __NR_linkat		303
-#define __NR_symlinkat		304
-#define __NR_readlinkat		305
-#define __NR_fchmodat		306
-#define __NR_faccessat		307
-#define __NR_pselect6		308
-#define __NR_ppoll		309
-#define __NR_unshare		310
-#define __NR_set_robust_list	311
-#define __NR_get_robust_list	312
-#define __NR_splice		313
-#define __NR_sync_file_range	314
-#define __NR_tee		315
-#define __NR_vmsplice		316
-#define __NR_move_pages		317
-#define __NR_getcpu		318
-#define __NR_epoll_pwait	319
-#define __NR_utimensat		320
-#define __NR_signalfd		321
-#define __NR_timerfd_create	322
-#define __NR_eventfd		323
-#define __NR_fallocate		324
-#define __NR_timerfd_settime	325
-#define __NR_timerfd_gettime	326
-#define __NR_signalfd4		327
-#define __NR_eventfd2		328
-#define __NR_epoll_create1	329
-#define __NR_dup3		330
-#define __NR_pipe2		331
-#define __NR_inotify_init1	332
-#define __NR_preadv		333
-#define __NR_pwritev		334
-#define __NR_rt_tgsigqueueinfo	335
-#define __NR_perf_event_open	336
-#define __NR_fanotify_init	337
-#define __NR_fanotify_mark	338
-#define __NR_prlimit64		339
-
-/* Non-multiplexed socket family */
-#define __NR_socket		340
-#define __NR_bind		341
-#define __NR_connect		342
-#define __NR_listen		343
-#define __NR_accept		344
-#define __NR_getsockname	345
-#define __NR_getpeername	346
-#define __NR_socketpair		347
-#define __NR_send		348
-#define __NR_sendto		349
-#define __NR_recv		350
-#define __NR_recvfrom		351
-#define __NR_shutdown		352
-#define __NR_setsockopt		353
-#define __NR_getsockopt		354
-#define __NR_sendmsg		355
-#define __NR_recvmsg		356
-#define __NR_recvmmsg		357
-#define __NR_accept4		358
-#define __NR_name_to_handle_at	359
-#define __NR_open_by_handle_at	360
-#define __NR_clock_adjtime	361
-#define __NR_syncfs		362
-#define __NR_sendmmsg		363
-#define __NR_setns		364
-#define __NR_process_vm_readv	365
-#define __NR_process_vm_writev	366
-#define __NR_kcmp		367
-#define __NR_finit_module	368
-#define __NR_sched_getattr	369
-#define __NR_sched_setattr	370
-#define __NR_renameat2		371
-#define __NR_seccomp		372
-#define __NR_getrandom		373
-#define __NR_memfd_create	374
-#define __NR_bpf		375
-#define __NR_execveat		376
-#define __NR_userfaultfd	377
-#define __NR_membarrier		378
-#define __NR_mlock2		379
-#define __NR_copy_file_range	380
-#define __NR_preadv2		381
-#define __NR_pwritev2		382
-
-#ifdef __KERNEL__
-#define __NR_syscalls		383
-#endif
-
-#endif /* __ASM_SH_UNISTD_32_H */

arch/sh/kernel/syscalls/syscall.tbl

···
 380	common	copy_file_range			sys_copy_file_range
 381	common	preadv2				sys_preadv2
 382	common	pwritev2			sys_pwritev2
+383	common	statx				sys_statx
+384	common	pkey_mprotect			sys_pkey_mprotect
+385	common	pkey_alloc			sys_pkey_alloc
+386	common	pkey_free			sys_pkey_free
+387	common	rseq				sys_rseq
+# room for arch specific syscalls
+393	common	semget				sys_semget
+394	common	semctl				sys_semctl
+395	common	shmget				sys_shmget
+396	common	shmctl				sys_shmctl
+397	common	shmat				sys_shmat
+398	common	shmdt				sys_shmdt
+399	common	msgget				sys_msgget
+400	common	msgsnd				sys_msgsnd
+401	common	msgrcv				sys_msgrcv
+402	common	msgctl				sys_msgctl

arch/sparc/include/asm/unistd.h

···
 #define __IGNORE_getresgid
 #endif
 
-/* Sparc doesn't have protection keys. */
-#define __IGNORE_pkey_mprotect
-#define __IGNORE_pkey_alloc
-#define __IGNORE_pkey_free
-
 #endif /* _SPARC_UNISTD_H */

arch/sparc/kernel/sys_sparc_64.c

···
 			goto out;
 		case SEMTIMEDOP:
 			err = sys_semtimedop(first, ptr, (unsigned int)second,
-				(const struct timespec __user *)
+				(const struct __kernel_timespec __user *)
 					     (unsigned long) fifth);
 			goto out;
 		case SEMGET:

arch/sparc/kernel/syscalls/syscall.tbl

···
 359	common	pwritev2		sys_pwritev2			compat_sys_pwritev2
 360	common	statx			sys_statx
 361	common	io_pgetevents		sys_io_pgetevents		compat_sys_io_pgetevents
+362	common	pkey_mprotect		sys_pkey_mprotect
+363	common	pkey_alloc		sys_pkey_alloc
+364	common	pkey_free		sys_pkey_free
+365	common	rseq			sys_rseq
+# room for arch specific syscalls
+392	64	semtimedop			sys_semtimedop
+393	common	semget			sys_semget
+394	common	semctl			sys_semctl			compat_sys_semctl
+395	common	shmget			sys_shmget
+396	common	shmctl			sys_shmctl			compat_sys_shmctl
+397	common	shmat			sys_shmat			compat_sys_shmat
+398	common	shmdt			sys_shmdt
+399	common	msgget			sys_msgget
+400	common	msgsnd			sys_msgsnd			compat_sys_msgsnd
+401	common	msgrcv			sys_msgrcv			compat_sys_msgrcv
+402	common	msgctl			sys_msgctl			compat_sys_msgctl

arch/x86/entry/syscalls/syscall_32.tbl

···
 384	i386	arch_prctl		sys_arch_prctl			__ia32_compat_sys_arch_prctl
 385	i386	io_pgetevents		sys_io_pgetevents		__ia32_compat_sys_io_pgetevents
 386	i386	rseq			sys_rseq			__ia32_sys_rseq
+# don't use numbers 387 through 392, add new calls at the end
+393	i386	semget			sys_semget    			__ia32_sys_semget
+394	i386	semctl			sys_semctl    			__ia32_compat_sys_semctl
+395	i386	shmget			sys_shmget    			__ia32_sys_shmget
+396	i386	shmctl			sys_shmctl    			__ia32_compat_sys_shmctl
+397	i386	shmat			sys_shmat     			__ia32_compat_sys_shmat
+398	i386	shmdt			sys_shmdt     			__ia32_sys_shmdt
+399	i386	msgget			sys_msgget    			__ia32_sys_msgget
+400	i386	msgsnd			sys_msgsnd    			__ia32_compat_sys_msgsnd
+401	i386	msgrcv			sys_msgrcv    			__ia32_compat_sys_msgrcv
+402	i386	msgctl			sys_msgctl    			__ia32_compat_sys_msgctl

arch/x86/entry/syscalls/syscall_64.tbl

···
 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

arch/xtensa/include/asm/unistd.h

···
 #define __ARCH_WANT_SYS_UTIME
 #define __ARCH_WANT_SYS_GETPGRP
 
-/* 
- * Ignore legacy system calls in the checksyscalls.sh script
- */
-
-#define __IGNORE_fork				/* use clone */
-#define __IGNORE_time
-#define __IGNORE_alarm				/* use setitimer */
-#define __IGNORE_pause
-#define __IGNORE_mmap				/* use mmap2 */
-#define __IGNORE_vfork				/* use clone */
-#define __IGNORE_fadvise64			/* use fadvise64_64 */
-
 #define NR_syscalls				__NR_syscalls
 
 #endif /* _XTENSA_UNISTD_H */

arch/xtensa/kernel/syscalls/syscall.tbl

···
 91	common	madvise				sys_madvise
 92	common	shmget				sys_shmget
 93	common	shmat				xtensa_shmat
-94	common	shmctl				sys_shmctl
+94	common	shmctl				sys_old_shmctl
 95	common	shmdt				sys_shmdt
 # Socket Operations
 96	common	socket				sys_socket
···
 161	common	semtimedop			sys_semtimedop
 162	common	semget				sys_semget
 163	common	semop				sys_semop
-164	common	semctl				sys_semctl
+164	common	semctl				sys_old_semctl
 165	common	available165			sys_ni_syscall
 166	common	msgget				sys_msgget
 167	common	msgsnd				sys_msgsnd
 168	common	msgrcv				sys_msgrcv
-169	common	msgctl				sys_msgctl
+169	common	msgctl				sys_old_msgctl
 170	common	available170			sys_ni_syscall
 # File System
 171	common	umount2				sys_umount
···
 349	common	pkey_alloc			sys_pkey_alloc
 350	common	pkey_free			sys_pkey_free
 351	common	statx				sys_statx
+352	common	rseq				sys_rseq

include/linux/syscalls.h

···
 
 /* ipc/msg.c */
 asmlinkage long sys_msgget(key_t key, int msgflg);
+asmlinkage long sys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
 asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
 asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp,
 				size_t msgsz, long msgtyp, int msgflg);
···
 /* ipc/sem.c */
 asmlinkage long sys_semget(key_t key, int nsems, int semflg);
 asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg);
+asmlinkage long sys_old_semctl(int semid, int semnum, int cmd, unsigned long arg);
 asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops,
 				unsigned nsops,
 				const struct __kernel_timespec __user *timeout);
···
 
 /* ipc/shm.c */
 asmlinkage long sys_shmget(key_t key, size_t size, int flag);
+asmlinkage long sys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
 asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
 asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg);
 asmlinkage long sys_shmdt(char __user *shmaddr);
···
 			      unsigned long prot, unsigned long flags,
 			      unsigned long fd, unsigned long pgoff);
 ssize_t ksys_readahead(int fd, loff_t offset, size_t count);
+int ksys_ipc(unsigned int call, int first, unsigned long second,
+	unsigned long third, void __user * ptr, long fifth);
+int compat_ksys_ipc(u32 call, int first, int second,
+	u32 third, u32 ptr, u32 fifth);
 
 /*
  * The following kernel syscall equivalents are just wrappers to fs-internal

include/uapi/asm-generic/unistd.h

···
 __SYSCALL(__NR_rseq, sys_rseq)
 #define __NR_kexec_file_load 294
 __SYSCALL(__NR_kexec_file_load,     sys_kexec_file_load)
+/* 295 through 402 are unassigned to sync up with generic numbers, don't use */
 
 #undef __NR_syscalls
 #define __NR_syscalls 295

ipc/msg.c

···
 	return err;
 }
 
-long ksys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf)
+static long ksys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf, int version)
 {
-	int version;
 	struct ipc_namespace *ns;
 	struct msqid64_ds msqid64;
 	int err;
···
 	if (msqid < 0 || cmd < 0)
 		return -EINVAL;
 
-	version = ipc_parse_version(&cmd);
 	ns = current->nsproxy->ipc_ns;
 
 	switch (cmd) {
···
 
 SYSCALL_DEFINE3(msgctl, int, msqid, int, cmd, struct msqid_ds __user *, buf)
 {
-	return ksys_msgctl(msqid, cmd, buf);
+	return ksys_msgctl(msqid, cmd, buf, IPC_64);
 }
+
+#ifdef CONFIG_ARCH_WANT_IPC_PARSE_VERSION
+long ksys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf)
+{
+	int version = ipc_parse_version(&cmd);
+
+	return ksys_msgctl(msqid, cmd, buf, version);
+}
+
+SYSCALL_DEFINE3(old_msgctl, int, msqid, int, cmd, struct msqid_ds __user *, buf)
+{
+	return ksys_old_msgctl(msqid, cmd, buf);
+}
+#endif
 
 #ifdef CONFIG_COMPAT
 
···
 	}
 }
 
-long compat_ksys_msgctl(int msqid, int cmd, void __user *uptr)
+static long compat_ksys_msgctl(int msqid, int cmd, void __user *uptr, int version)
 {
 	struct ipc_namespace *ns;
 	int err;
 	struct msqid64_ds msqid64;
-	int version = compat_ipc_parse_version(&cmd);
 
 	ns = current->nsproxy->ipc_ns;
 
···
 
 COMPAT_SYSCALL_DEFINE3(msgctl, int, msqid, int, cmd, void __user *, uptr)
 {
-	return compat_ksys_msgctl(msqid, cmd, uptr);
+	return compat_ksys_msgctl(msqid, cmd, uptr, IPC_64);
 }
+
+#ifdef CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION
+long compat_ksys_old_msgctl(int msqid, int cmd, void __user *uptr)
+{
+	int version = compat_ipc_parse_version(&cmd);
+
+	return compat_ksys_msgctl(msqid, cmd, uptr, version);
+}
+
+COMPAT_SYSCALL_DEFINE3(old_msgctl, int, msqid, int, cmd, void __user *, uptr)
+{
+	return compat_ksys_old_msgctl(msqid, cmd, uptr);
+}
+#endif
 #endif
 
 static int testmsg(struct msg_msg *msg, long type, int mode)

ipc/sem.c

···
 	return err;
 }
 
-long ksys_semctl(int semid, int semnum, int cmd, unsigned long arg)
+static long ksys_semctl(int semid, int semnum, int cmd, unsigned long arg, int version)
 {
-	int version;
 	struct ipc_namespace *ns;
 	void __user *p = (void __user *)arg;
 	struct semid64_ds semid64;
···
 	if (semid < 0)
 		return -EINVAL;
 
-	version = ipc_parse_version(&cmd);
 	ns = current->nsproxy->ipc_ns;
 
 	switch (cmd) {
···
 
 SYSCALL_DEFINE4(semctl, int, semid, int, semnum, int, cmd, unsigned long, arg)
 {
-	return ksys_semctl(semid, semnum, cmd, arg);
+	return ksys_semctl(semid, semnum, cmd, arg, IPC_64);
 }
+
+#ifdef CONFIG_ARCH_WANT_IPC_PARSE_VERSION
+long ksys_old_semctl(int semid, int semnum, int cmd, unsigned long arg)
+{
+	int version = ipc_parse_version(&cmd);
+
+	return ksys_semctl(semid, semnum, cmd, arg, version);
+}
+
+SYSCALL_DEFINE4(old_semctl, int, semid, int, semnum, int, cmd, unsigned long, arg)
+{
+	return ksys_old_semctl(semid, semnum, cmd, arg);
+}
+#endif
 
 #ifdef CONFIG_COMPAT
 
···
 	}
 }
 
-long compat_ksys_semctl(int semid, int semnum, int cmd, int arg)
+static long compat_ksys_semctl(int semid, int semnum, int cmd, int arg, int version)
 {
 	void __user *p = compat_ptr(arg);
 	struct ipc_namespace *ns;
 	struct semid64_ds semid64;
-	int version = compat_ipc_parse_version(&cmd);
 	int err;
 
 	ns = current->nsproxy->ipc_ns;
···
 
 COMPAT_SYSCALL_DEFINE4(semctl, int, semid, int, semnum, int, cmd, int, arg)
 {
-	return compat_ksys_semctl(semid, semnum, cmd, arg);
+	return compat_ksys_semctl(semid, semnum, cmd, arg, IPC_64);
 }
+
+#ifdef CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION
+long compat_ksys_old_semctl(int semid, int semnum, int cmd, int arg)
+{
+	int version = compat_ipc_parse_version(&cmd);
+
+	return compat_ksys_semctl(semid, semnum, cmd, arg, version);
+}
+
+COMPAT_SYSCALL_DEFINE4(old_semctl, int, semid, int, semnum, int, cmd, int, arg)
+{
+	return compat_ksys_old_semctl(semid, semnum, cmd, arg);
+}
+#endif
 #endif
 
 /* If the task doesn't already have a undo_list, then allocate one

ipc/shm.c

···
 	return err;
 }
 
-long ksys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf)
+static long ksys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf, int version)
 {
-	int err, version;
+	int err;
 	struct ipc_namespace *ns;
 	struct shmid64_ds sem64;
 
 	if (cmd < 0 || shmid < 0)
 		return -EINVAL;
 
-	version = ipc_parse_version(&cmd);
 	ns = current->nsproxy->ipc_ns;
 
 	switch (cmd) {
···
 
 SYSCALL_DEFINE3(shmctl, int, shmid, int, cmd, struct shmid_ds __user *, buf)
 {
-	return ksys_shmctl(shmid, cmd, buf);
+	return ksys_shmctl(shmid, cmd, buf, IPC_64);
 }
+
+#ifdef CONFIG_ARCH_WANT_IPC_PARSE_VERSION
+long ksys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf)
+{
+	int version = ipc_parse_version(&cmd);
+
+	return ksys_shmctl(shmid, cmd, buf, version);
+}
+
+SYSCALL_DEFINE3(old_shmctl, int, shmid, int, cmd, struct shmid_ds __user *, buf)
+{
+	return ksys_old_shmctl(shmid, cmd, buf);
+}
+#endif
 
 #ifdef CONFIG_COMPAT
 
···
 	}
 }
 
-long compat_ksys_shmctl(int shmid, int cmd, void __user *uptr)
+long compat_ksys_shmctl(int shmid, int cmd, void __user *uptr, int version)
 {
 	struct ipc_namespace *ns;
 	struct shmid64_ds sem64;
-	int version = compat_ipc_parse_version(&cmd);
 	int err;
 
 	ns = current->nsproxy->ipc_ns;
···
 
 COMPAT_SYSCALL_DEFINE3(shmctl, int, shmid, int, cmd, void __user *, uptr)
 {
-	return compat_ksys_shmctl(shmid, cmd, uptr);
+	return compat_ksys_shmctl(shmid, cmd, uptr, IPC_64);
 }
+
+#ifdef CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION
+long compat_ksys_old_shmctl(int shmid, int cmd, void __user *uptr)
+{
+	int version = compat_ipc_parse_version(&cmd);
+
+	return compat_ksys_shmctl(shmid, cmd, uptr, version);
+}
+
+COMPAT_SYSCALL_DEFINE3(old_shmctl, int, shmid, int, cmd, void __user *, uptr)
+{
+	return compat_ksys_old_shmctl(shmid, cmd, uptr);
+}
+#endif
 #endif
 
 /*

ipc/syscall.c

···
 #include <linux/shm.h>
 #include <linux/uaccess.h>
 
-SYSCALL_DEFINE6(ipc, unsigned int, call, int, first, unsigned long, second,
-		unsigned long, third, void __user *, ptr, long, fifth)
+int ksys_ipc(unsigned int call, int first, unsigned long second,
+	unsigned long third, void __user * ptr, long fifth)
 {
 	int version, ret;
 
···
 			return -EINVAL;
 		if (get_user(arg, (unsigned long __user *) ptr))
 			return -EFAULT;
-		return ksys_semctl(first, second, third, arg);
+		return ksys_old_semctl(first, second, third, arg);
 	}
 
 	case MSGSND:
···
 	case MSGGET:
 		return ksys_msgget((key_t) first, second);
 	case MSGCTL:
-		return ksys_msgctl(first, second,
+		return ksys_old_msgctl(first, second,
 				   (struct msqid_ds __user *)ptr);
 
 	case SHMAT:
···
 	case SHMGET:
 		return ksys_shmget(first, second, third);
 	case SHMCTL:
-		return ksys_shmctl(first, second,
+		return ksys_old_shmctl(first, second,
 				   (struct shmid_ds __user *) ptr);
 	default:
 		return -ENOSYS;
 	}
+}
+
+SYSCALL_DEFINE6(ipc, unsigned int, call, int, first, unsigned long, second,
+		unsigned long, third, void __user *, ptr, long, fifth)
+{
+	return ksys_ipc(call, first, second, third, ptr, fifth);
 }
 #endif
 
···
 };
 
 #ifdef CONFIG_ARCH_WANT_OLD_COMPAT_IPC
-COMPAT_SYSCALL_DEFINE6(ipc, u32, call, int, first, int, second,
-	u32, third, compat_uptr_t, ptr, u32, fifth)
+int compat_ksys_ipc(u32 call, int first, int second,
+	u32 third, compat_uptr_t ptr, u32 fifth)
 {
 	int version;
 	u32 pad;
···
 			return -EINVAL;
 		if (get_user(pad, (u32 __user *) compat_ptr(ptr)))
 			return -EFAULT;
-		return compat_ksys_semctl(first, second, third, pad);
+		return compat_ksys_old_semctl(first, second, third, pad);
 
 	case MSGSND:
 		return compat_ksys_msgsnd(first, ptr, second, third);
···
 	case MSGGET:
 		return ksys_msgget(first, second);
 	case MSGCTL:
-		return compat_ksys_msgctl(first, second, compat_ptr(ptr));
+		return compat_ksys_old_msgctl(first, second, compat_ptr(ptr));
 
 	case SHMAT: {
 		int err;
···
 	case SHMGET:
 		return ksys_shmget(first, (unsigned int)second, third);
 	case SHMCTL:
-		return compat_ksys_shmctl(first, second, compat_ptr(ptr));
+		return compat_ksys_old_shmctl(first, second, compat_ptr(ptr));
 	}
 
 	return -ENOSYS;
+}
+
+COMPAT_SYSCALL_DEFINE6(ipc, u32, call, int, first, int, second,
+	u32, third, compat_uptr_t, ptr, u32, fifth)
+{
+	return compat_ksys_ipc(call, first, second, third, ptr, fifth);
 }
 #endif
 #endif

ipc/util.h

···
 	}
 }
 
-#ifndef CONFIG_ARCH_WANT_IPC_PARSE_VERSION
-/* On IA-64, we always use the "64-bit version" of the IPC structures.  */
-# define ipc_parse_version(cmd)	IPC_64
-#else
+#ifdef CONFIG_ARCH_WANT_IPC_PARSE_VERSION
 int ipc_parse_version(int *cmd);
 #endif
 
···
 
 static inline int compat_ipc_parse_version(int *cmd)
 {
-#ifdef	CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION
 	int version = *cmd & IPC_64;
 	*cmd &= ~IPC_64;
 	return version;
-#else
-	return IPC_64;
-#endif
 }
 #endif
 
···
 		     unsigned int nsops,
 		     const struct __kernel_timespec __user *timeout);
 long ksys_semget(key_t key, int nsems, int semflg);
-long ksys_semctl(int semid, int semnum, int cmd, unsigned long arg);
+long ksys_old_semctl(int semid, int semnum, int cmd, unsigned long arg);
 long ksys_msgget(key_t key, int msgflg);
-long ksys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
+long ksys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
 long ksys_msgrcv(int msqid, struct msgbuf __user *msgp, size_t msgsz,
 		 long msgtyp, int msgflg);
 long ksys_msgsnd(int msqid, struct msgbuf __user *msgp, size_t msgsz,
 		 int msgflg);
 long ksys_shmget(key_t key, size_t size, int shmflg);
 long ksys_shmdt(char __user *shmaddr);
-long ksys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
+long ksys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
 
 /* for CONFIG_ARCH_WANT_OLD_COMPAT_IPC */
 long compat_ksys_semtimedop(int semid, struct sembuf __user *tsems,
 			    unsigned int nsops,
 			    const struct old_timespec32 __user *timeout);
 #ifdef CONFIG_COMPAT
-long compat_ksys_semctl(int semid, int semnum, int cmd, int arg);
-long compat_ksys_msgctl(int msqid, int cmd, void __user *uptr);
+long compat_ksys_old_semctl(int semid, int semnum, int cmd, int arg);
+long compat_ksys_old_msgctl(int msqid, int cmd, void __user *uptr);
 long compat_ksys_msgrcv(int msqid, compat_uptr_t msgp, compat_ssize_t msgsz,
 			compat_long_t msgtyp, int msgflg);
 long compat_ksys_msgsnd(int msqid, compat_uptr_t msgp,
 		       compat_ssize_t msgsz, int msgflg);
-long compat_ksys_shmctl(int shmid, int cmd, void __user *uptr);
+long compat_ksys_old_shmctl(int shmid, int cmd, void __user *uptr);
 #endif /* CONFIG_COMPAT */
 
 #endif

kernel/sys_ni.c

···
 
 /* ipc/msg.c */
 COND_SYSCALL(msgget);
+COND_SYSCALL(old_msgctl);
 COND_SYSCALL(msgctl);
 COND_SYSCALL_COMPAT(msgctl);
 COND_SYSCALL(msgrcv);
···
 
 /* ipc/sem.c */
 COND_SYSCALL(semget);
+COND_SYSCALL(old_semctl);
 COND_SYSCALL(semctl);
 COND_SYSCALL_COMPAT(semctl);
 COND_SYSCALL(semtimedop);
···
 
 /* ipc/shm.c */
 COND_SYSCALL(shmget);
+COND_SYSCALL(old_shmctl);
 COND_SYSCALL(shmctl);
 COND_SYSCALL_COMPAT(shmctl);
 COND_SYSCALL(shmat);
···
 /* s390 */
 COND_SYSCALL(s390_pci_mmio_read);
 COND_SYSCALL(s390_pci_mmio_write);
+COND_SYSCALL(s390_ipc);
 COND_SYSCALL_COMPAT(s390_ipc);
 
 /* powerpc */