linux-kernel - [PATCHv2 4/4] unicore32-oldabi: add oldabi syscall interface

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Message-ID: <63367.117.114.135.40.1475068029.squirrel@mprc.pku.edu.cn>
Date:   Wed, 28 Sep 2016 21:07:09 +0800 (CST)
From:   "Xuetao Guan" <gxt@...c.pku.edu.cn>
To:     linux-kernel@...r.kernel.org
Cc:     linux@...ck-us.net, qinrui@....edu.cn, gxt@...c.pku.edu.cn,
        zhangheng@...c.pku.edu.cn
Subject: [PATCHv2 4/4] unicore32-oldabi: add oldabi syscall interface

Define unicore32 oldabi syscall in
	arch/unicore32/include/uapi/asm/unistd-oldabi.h.
And implement some architecture related syscalls.

Signed-off-by: Guan Xuetao <gxt@...c.pku.edu.cn>
Signed-off-by: Qin Rui <qinrui@....edu.cn>
Tested-by: Guenter Roeck <linux@...ck-us.net>
---
 arch/unicore32/Kconfig                          |   3 +
 arch/unicore32/include/asm/Kbuild               |   2 -
 arch/unicore32/include/asm/signal.h             |  21 +
 arch/unicore32/include/asm/syscalls.h           |  25 +
 arch/unicore32/include/uapi/asm/unistd-oldabi.h | 770
++++++++++++++++++++++++
 arch/unicore32/include/uapi/asm/unistd.h        |   8 +
 arch/unicore32/kernel/entry.S                   |  17 +
 arch/unicore32/kernel/signal.c                  |  41 ++
 8 files changed, 885 insertions(+), 2 deletions(-)
 create mode 100644 arch/unicore32/include/asm/signal.h
 create mode 100644 arch/unicore32/include/asm/syscalls.h
 create mode 100644 arch/unicore32/include/uapi/asm/unistd-oldabi.h

diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
index e23100b..0a3bfd1 100644
--- a/arch/unicore32/Kconfig
+++ b/arch/unicore32/Kconfig
@@ -72,6 +72,9 @@ menu "System Type"
 config UNICORE32_OLDABI
 	bool "Allow old ABI binaries to run with this kernel"
 	default y
+	select CLONE_BACKWARDS
+	select OLD_SIGACTION
+	select OLD_SIGSUSPEND3
 	help
 	  This option preserves the old syscall interface instead of the
asm-generic one. It also provides a compatibility layer to
diff --git a/arch/unicore32/include/asm/Kbuild
b/arch/unicore32/include/asm/Kbuild
index 0ce2a5a..8578702 100644
--- a/arch/unicore32/include/asm/Kbuild
+++ b/arch/unicore32/include/asm/Kbuild
@@ -45,13 +45,11 @@ generic-y += setup.h
 generic-y += shmbuf.h
 generic-y += shmparam.h
 generic-y += siginfo.h
-generic-y += signal.h
 generic-y += sizes.h
 generic-y += socket.h
 generic-y += sockios.h
 generic-y += statfs.h
 generic-y += swab.h
-generic-y += syscalls.h
 generic-y += termbits.h
 generic-y += termios.h
 generic-y += topology.h
diff --git a/arch/unicore32/include/asm/signal.h
b/arch/unicore32/include/asm/signal.h
new file mode 100644
index 0000000..a875198
--- /dev/null
+++ b/arch/unicore32/include/asm/signal.h
@@ -0,0 +1,21 @@
+/*
+ * linux/arch/unicore32/include/asm/signal.h
+ *
+ * Code specific to UniCore ISA
+ *
+ * Copyright (C) 2014 GUAN Xuetao
+ *
+ * This program is free software; you can redistribute it and/or modify +
* it under the terms of the GNU General Public License version 2 as + *
published by the Free Software Foundation.
+ */
+#ifndef __UNICORE32_ASM_SIGNAL_H__
+#define __UNICORE32_ASM_SIGNAL_H__
+
+#ifdef CONFIG_UNICORE32_OLDABI
+#define SA_RESTORER	0x04000000
+#endif
+
+#include <asm-generic/signal.h>
+
+#endif /* __UNICORE32_ASM_SIGNAL_H__ */
diff --git a/arch/unicore32/include/asm/syscalls.h
b/arch/unicore32/include/asm/syscalls.h
new file mode 100644
index 0000000..362cf4d
--- /dev/null
+++ b/arch/unicore32/include/asm/syscalls.h
@@ -0,0 +1,25 @@
+/*
+ * linux/arch/unicore32/include/asm/syscalls.h
+ *
+ * Code specific to UniCore ISA
+ *
+ * Copyright (C) 2014 GUAN Xuetao
+ *
+ * This program is free software; you can redistribute it and/or modify +
* it under the terms of the GNU General Public License version 2 as + *
published by the Free Software Foundation.
+ */
+#ifndef __UNICORE32_ASM_SYSCALLS_H__
+#define __UNICORE32_ASM_SYSCALLS_H__
+
+#include <asm-generic/syscalls.h>
+
+#ifdef CONFIG_UNICORE32_OLDABI
+/* Wrapper functions */
+extern asmlinkage long sys_clone_wrapper(unsigned long clone_flags,
+		unsigned long newsp, int __user *parent_tidptr,
+		int tls_val, int __user *child_tidptr);
+extern asmlinkage long sys_sigreturn_wrapper(struct pt_regs *regs);
+#endif /* CONFIG_UNICORE32_OLDABI */
+
+#endif /* __UNICORE32_ASM_SYSCALLS_H__ */
diff --git a/arch/unicore32/include/uapi/asm/unistd-oldabi.h
b/arch/unicore32/include/uapi/asm/unistd-oldabi.h
new file mode 100644
index 0000000..0c24fcf
--- /dev/null
+++ b/arch/unicore32/include/uapi/asm/unistd-oldabi.h
@@ -0,0 +1,770 @@
+#ifndef CONFIG_UNICORE32_OLDABI
+#error unistd-oldabi.h is ONLY used when CONFIG_UNICORE32_OLDABI defined
+#endif
+
+#define __NR_SYSCALL_BASE	0x900000
+
+#ifndef __SYSCALL
+#define __SYSCALL(x, y)
+#endif
+
+#define __NR_restart_syscall 0
+__SYSCALL(__NR_restart_syscall, sys_restart_syscall)
+#define __NR_exit 1
+__SYSCALL(__NR_exit, sys_exit)
+#define __NR_fork 2
+__SYSCALL(__NR_fork, sys_fork)
+#define __NR_read 3
+__SYSCALL(__NR_read, sys_read)
+#define __NR_write 4
+__SYSCALL(__NR_write, sys_write)
+#define __NR_open 5
+__SYSCALL(__NR_open, sys_open)
+#define __NR_close 6
+__SYSCALL(__NR_close, sys_close)
+					/* 7 was sys_waitpid */
+#define __NR_creat 8
+__SYSCALL(__NR_creat, sys_creat)
+#define __NR_link 9
+__SYSCALL(__NR_link, sys_link)
+#define __NR_unlink 10
+__SYSCALL(__NR_unlink, sys_unlink)
+#define __NR_execve 11
+__SYSCALL(__NR_execve, sys_execve)
+#define __NR_chdir 12
+__SYSCALL(__NR_chdir, sys_chdir)
+#define __NR_time 13
+__SYSCALL(__NR_time, sys_time)
+#define __NR_mknod 14
+__SYSCALL(__NR_mknod, sys_mknod)
+#define __NR_chmod 15
+__SYSCALL(__NR_chmod, sys_chmod)
+#define __NR_lchown 16
+__SYSCALL(__NR_lchown, sys_ni_syscall)
+					/* 17 was sys_break */
+					/* 18 was sys_stat */
+#define __NR_lseek 19
+__SYSCALL(__NR_lseek, sys_lseek)
+#define __NR_getpid 20
+__SYSCALL(__NR_getpid, sys_getpid)
+#define __NR_mount 21
+__SYSCALL(__NR_mount, sys_mount)
+#define __NR_umount 22
+__SYSCALL(__NR_umount, sys_oldumount)
+#define __NR_setuid 23
+__SYSCALL(__NR_setuid, sys_ni_syscall)
+#define __NR_getuid 24
+__SYSCALL(__NR_getuid, sys_ni_syscall)
+#define __NR_stime 25
+__SYSCALL(__NR_stime, sys_stime)
+#define __NR_ptrace 26
+__SYSCALL(__NR_ptrace, sys_ptrace)
+#define __NR_alarm 27
+__SYSCALL(__NR_alarm, sys_alarm)
+					/* 28 was sys_fstat */
+#define __NR_pause 29
+__SYSCALL(__NR_pause, sys_pause)
+#define __NR_utime 30
+__SYSCALL(__NR_utime, sys_utime)
+					/* 31 was sys_stty */
+					/* 32 was sys_gtty */
+#define __NR_access 33
+__SYSCALL(__NR_access, sys_access)
+#define __NR_nice 34
+__SYSCALL(__NR_nice, sys_nice)
+					/* 35 was sys_ftime */
+#define __NR_sync 36
+__SYSCALL(__NR_sync, sys_sync)
+#define __NR_kill 37
+__SYSCALL(__NR_kill, sys_kill)
+#define __NR_rename 38
+__SYSCALL(__NR_rename, sys_rename)
+#define __NR_mkdir 39
+__SYSCALL(__NR_mkdir, sys_mkdir)
+#define __NR_rmdir 40
+__SYSCALL(__NR_rmdir, sys_rmdir)
+#define __NR_dup 41
+__SYSCALL(__NR_dup, sys_dup)
+#define __NR_pipe 42
+__SYSCALL(__NR_pipe, sys_pipe)
+#define __NR_times 43
+__SYSCALL(__NR_times, sys_times)
+					/* 44 was sys_prof */
+#define __NR_brk 45
+__SYSCALL(__NR_brk, sys_brk)
+#define __NR_setgid 46
+__SYSCALL(__NR_setgid, sys_ni_syscall)
+#define __NR_getgid 47
+__SYSCALL(__NR_getgid, sys_ni_syscall)
+					/* 48 was sys_signal */
+#define __NR_geteuid 49
+__SYSCALL(__NR_geteuid, sys_ni_syscall)
+#define __NR_getegid 50
+__SYSCALL(__NR_getegid, sys_ni_syscall)
+#define __NR_acct 51
+__SYSCALL(__NR_acct, sys_acct)
+#define __NR_umount2 52
+__SYSCALL(__NR_umount2, sys_umount)
+					/* 53 was sys_lock */
+#define __NR_ioctl 54
+__SYSCALL(__NR_ioctl, sys_ioctl)
+#define __NR_fcntl 55
+__SYSCALL(__NR_fcntl, sys_fcntl)
+					/* 56 was sys_mpx */
+#define __NR_setpgid 57
+__SYSCALL(__NR_setpgid, sys_setpgid)
+					/* 58 was sys_ulimit */
+					/* 59 was sys_olduname */
+#define __NR_umask 60
+__SYSCALL(__NR_umask, sys_umask)
+#define __NR_chroot 61
+__SYSCALL(__NR_chroot, sys_chroot)
+#define __NR_ustat 62
+__SYSCALL(__NR_ustat, sys_ustat)
+#define __NR_dup2 63
+__SYSCALL(__NR_dup2, sys_dup2)
+#define __NR_getppid 64
+__SYSCALL(__NR_getppid, sys_getppid)
+#define __NR_getpgrp 65
+__SYSCALL(__NR_getpgrp, sys_getpgrp)
+#define __NR_setsid 66
+__SYSCALL(__NR_setsid, sys_setsid)
+#define __NR_sigaction 67
+__SYSCALL(__NR_sigaction, sys_sigaction)
+					/* 68 was sys_sgetmask */
+					/* 69 was sys_ssetmask */
+#define __NR_setreuid 70
+__SYSCALL(__NR_setreuid, sys_ni_syscall)
+#define __NR_setregid 71
+__SYSCALL(__NR_setregid, sys_ni_syscall)
+#define __NR_sigsuspend 72
+__SYSCALL(__NR_sigsuspend, sys_sigsuspend)
+#define __NR_sigpending 73
+__SYSCALL(__NR_sigpending, sys_sigpending)
+#define __NR_sethostname 74
+__SYSCALL(__NR_sethostname, sys_sethostname)
+#define __NR_setrlimit 75
+__SYSCALL(__NR_setrlimit, sys_setrlimit)
+#define __NR_getrlimit 76
+__SYSCALL(__NR_getrlimit, sys_old_getrlimit)
+					/* Back compat 2GB limited rlimit */
+#define __NR_getrusage 77
+__SYSCALL(__NR_getrusage, sys_getrusage)
+#define __NR_gettimeofday 78
+__SYSCALL(__NR_gettimeofday, sys_gettimeofday)
+#define __NR_settimeofday 79
+__SYSCALL(__NR_settimeofday, sys_settimeofday)
+#define __NR_getgroups 80
+__SYSCALL(__NR_getgroups, sys_ni_syscall)
+#define __NR_setgroups 81
+__SYSCALL(__NR_setgroups, sys_ni_syscall)
+#define __NR_select 82
+__SYSCALL(__NR_select, sys_old_select)
+#define __NR_symlink 83
+__SYSCALL(__NR_symlink, sys_symlink)
+					/* 84 was sys_lstat */
+#define __NR_readlink 85
+__SYSCALL(__NR_readlink, sys_readlink)
+#define __NR_uselib 86
+__SYSCALL(__NR_uselib, sys_uselib)
+#define __NR_swapon 87
+__SYSCALL(__NR_swapon, sys_swapon)
+#define __NR_reboot 88
+__SYSCALL(__NR_reboot, sys_reboot)
+#define __NR_readdir 89
+__SYSCALL(__NR_readdir, sys_old_readdir)
+#define __NR_mmap 90
+__SYSCALL(__NR_mmap, sys_old_mmap)
+#define __NR_munmap 91
+__SYSCALL(__NR_munmap, sys_munmap)
+#define __NR_truncate 92
+__SYSCALL(__NR_truncate, sys_truncate)
+#define __NR_ftruncate 93
+__SYSCALL(__NR_ftruncate, sys_ftruncate)
+#define __NR_fchmod 94
+__SYSCALL(__NR_fchmod, sys_fchmod)
+#define __NR_fchown 95
+__SYSCALL(__NR_fchown, sys_ni_syscall)
+#define __NR_getpriority 96
+__SYSCALL(__NR_getpriority, sys_getpriority)
+#define __NR_setpriority 97
+__SYSCALL(__NR_setpriority, sys_setpriority)
+					/* 98 was sys_profil */
+#define __NR_statfs 99
+__SYSCALL(__NR_statfs, sys_statfs)
+#define __NR_fstatfs 100
+__SYSCALL(__NR_fstatfs, sys_fstatfs)
+					/* 101 was sys_ioperm */
+#define __NR_socketcall 102
+__SYSCALL(__NR_socketcall, sys_socketcall)
+#define __NR_syslog 103
+__SYSCALL(__NR_syslog, sys_syslog)
+#define __NR_setitimer 104
+__SYSCALL(__NR_setitimer, sys_setitimer)
+#define __NR_getitimer 105
+__SYSCALL(__NR_getitimer, sys_getitimer)
+#define __NR_stat 106
+__SYSCALL(__NR_stat, sys_newstat)
+#define __NR_lstat 107
+__SYSCALL(__NR_lstat, sys_newlstat)
+#define __NR_fstat 108
+__SYSCALL(__NR_fstat, sys_newfstat)
+					/* 109 was sys_uname */
+					/* 110 was sys_iopl */
+#define __NR_vhangup 111
+__SYSCALL(__NR_vhangup, sys_vhangup)
+					/* 112 was sys_idle */
+#define __NR_syscall 113
+__SYSCALL(__NR_syscall, sys_ni_syscall)
+					/* syscall to call a syscall! */
+#define __NR_wait4 114
+__SYSCALL(__NR_wait4, sys_wait4)
+#define __NR_swapoff 115
+__SYSCALL(__NR_swapoff, sys_swapoff)
+#define __NR_sysinfo 116
+__SYSCALL(__NR_sysinfo, sys_sysinfo)
+#define __NR_ipc 117
+__SYSCALL(__NR_ipc, sys_ipc)
+#define __NR_fsync 118
+__SYSCALL(__NR_fsync, sys_fsync)
+#define __NR_sigreturn 119
+__SYSCALL(__NR_sigreturn, sys_sigreturn_wrapper)
+#define __NR_clone 120
+__SYSCALL(__NR_clone, sys_clone_wrapper)
+#define __NR_setdomainname 121
+__SYSCALL(__NR_setdomainname, sys_setdomainname)
+#define __NR_uname 122
+__SYSCALL(__NR_uname, sys_newuname)
+					/* 123 was sys_modify_ldt */
+#define __NR_adjtimex 124
+__SYSCALL(__NR_adjtimex, sys_adjtimex)
+#define __NR_mprotect 125
+__SYSCALL(__NR_mprotect, sys_mprotect)
+#define __NR_sigprocmask 126
+__SYSCALL(__NR_sigprocmask, sys_sigprocmask)
+					/* 127 was sys_create_module */
+#define __NR_init_module 128
+__SYSCALL(__NR_init_module, sys_init_module)
+#define __NR_delete_module 129
+__SYSCALL(__NR_delete_module, sys_delete_module)
+					/* 130 was sys_get_kernel_syms */
+#define __NR_quotactl 131
+__SYSCALL(__NR_quotactl, sys_quotactl)
+#define __NR_getpgid 132
+__SYSCALL(__NR_getpgid, sys_getpgid)
+#define __NR_fchdir 133
+__SYSCALL(__NR_fchdir, sys_fchdir)
+#define __NR_bdflush 134
+__SYSCALL(__NR_bdflush, sys_bdflush)
+#define __NR_sysfs 135
+__SYSCALL(__NR_sysfs, sys_sysfs)
+#define __NR_personality 136
+__SYSCALL(__NR_personality, sys_personality)
+					/* 137 was sys_afs_syscall */
+#define __NR_setfsuid 138
+__SYSCALL(__NR_setfsuid, sys_ni_syscall)
+#define __NR_setfsgid 139
+__SYSCALL(__NR_setfsgid, sys_ni_syscall)
+#define __NR__llseek 140
+__SYSCALL(__NR__llseek, sys_llseek)
+#define __NR_getdents 141
+__SYSCALL(__NR_getdents, sys_getdents)
+#define __NR__newselect 142
+__SYSCALL(__NR__newselect, sys_select)
+#define __NR_flock 143
+__SYSCALL(__NR_flock, sys_flock)
+#define __NR_msync 144
+__SYSCALL(__NR_msync, sys_msync)
+#define __NR_readv 145
+__SYSCALL(__NR_readv, sys_readv)
+#define __NR_writev 146
+__SYSCALL(__NR_writev, sys_writev)
+#define __NR_getsid 147
+__SYSCALL(__NR_getsid, sys_getsid)
+#define __NR_fdatasync 148
+__SYSCALL(__NR_fdatasync, sys_fdatasync)
+#define __NR__sysctl 149
+__SYSCALL(__NR__sysctl, sys_sysctl)
+#define __NR_mlock 150
+__SYSCALL(__NR_mlock, sys_mlock)
+#define __NR_munlock 151
+__SYSCALL(__NR_munlock, sys_munlock)
+#define __NR_mlockall 152
+__SYSCALL(__NR_mlockall, sys_mlockall)
+#define __NR_munlockall 153
+__SYSCALL(__NR_munlockall, sys_munlockall)
+#define __NR_sched_setparam 154
+__SYSCALL(__NR_sched_setparam, sys_sched_setparam)
+#define __NR_sched_getparam 155
+__SYSCALL(__NR_sched_getparam, sys_sched_getparam)
+#define __NR_sched_setscheduler 156
+__SYSCALL(__NR_sched_setscheduler, sys_sched_setscheduler)
+#define __NR_sched_getscheduler 157
+__SYSCALL(__NR_sched_getscheduler, sys_sched_getscheduler)
+#define __NR_sched_yield 158
+__SYSCALL(__NR_sched_yield, sys_sched_yield)
+#define __NR_sched_get_priority_max 159
+__SYSCALL(__NR_sched_get_priority_max, sys_sched_get_priority_max)
+#define __NR_sched_get_priority_min 160
+__SYSCALL(__NR_sched_get_priority_min, sys_sched_get_priority_min)
+#define __NR_sched_rr_get_interval 161
+__SYSCALL(__NR_sched_rr_get_interval, sys_sched_rr_get_interval)
+#define __NR_nanosleep 162
+__SYSCALL(__NR_nanosleep, sys_nanosleep)
+#define __NR_mremap 163
+__SYSCALL(__NR_mremap, sys_mremap)
+#define __NR_setresuid 164
+__SYSCALL(__NR_setresuid, sys_ni_syscall)
+#define __NR_getresuid 165
+__SYSCALL(__NR_getresuid, sys_ni_syscall)
+					/* 166 was sys_vm86 */
+					/* 167 was sys_query_module */
+#define __NR_poll 168
+__SYSCALL(__NR_poll, sys_poll)
+#define __NR_nfsservctl 169
+__SYSCALL(__NR_nfsservctl, sys_ni_syscall)
+#define __NR_setresgid 170
+__SYSCALL(__NR_setresgid, sys_ni_syscall)
+#define __NR_getresgid 171
+__SYSCALL(__NR_getresgid, sys_ni_syscall)
+#define __NR_prctl 172
+__SYSCALL(__NR_prctl, sys_prctl)
+#define __NR_rt_sigreturn 173
+__SYSCALL(__NR_rt_sigreturn, sys_rt_sigreturn)
+#define __NR_rt_sigaction 174
+__SYSCALL(__NR_rt_sigaction, sys_rt_sigaction)
+#define __NR_rt_sigprocmask 175
+__SYSCALL(__NR_rt_sigprocmask, sys_rt_sigprocmask)
+#define __NR_rt_sigpending 176
+__SYSCALL(__NR_rt_sigpending, sys_rt_sigpending)
+#define __NR_rt_sigtimedwait 177
+__SYSCALL(__NR_rt_sigtimedwait, sys_rt_sigtimedwait)
+#define __NR_rt_sigqueueinfo 178
+__SYSCALL(__NR_rt_sigqueueinfo, sys_rt_sigqueueinfo)
+#define __NR_rt_sigsuspend 179
+__SYSCALL(__NR_rt_sigsuspend, sys_rt_sigsuspend)
+#define __NR_pread64 180
+__SYSCALL(__NR_pread64, sys_pread64)
+#define __NR_pwrite64 181
+__SYSCALL(__NR_pwrite64, sys_pwrite64)
+#define __NR_chown 182
+__SYSCALL(__NR_chown, sys_ni_syscall)
+#define __NR_getcwd 183
+__SYSCALL(__NR_getcwd, sys_getcwd)
+#define __NR_capget 184
+__SYSCALL(__NR_capget, sys_capget)
+#define __NR_capset 185
+__SYSCALL(__NR_capset, sys_capset)
+#define __NR_sigaltstack 186
+__SYSCALL(__NR_sigaltstack, sys_sigaltstack)
+#define __NR_sendfile 187
+__SYSCALL(__NR_sendfile, sys_sendfile)
+					/* 188 reserved */
+					/* 189 reserved */
+#define __NR_vfork 190
+__SYSCALL(__NR_vfork, sys_vfork)
+#define __NR_ugetrlimit 191
+__SYSCALL(__NR_ugetrlimit, sys_getrlimit)
+					/* SuS compliant getrlimit */
+#define __NR_mmap2 192
+__SYSCALL(__NR_mmap2, sys_mmap_pgoff)
+#define __NR_truncate64 193
+__SYSCALL(__NR_truncate64, sys_truncate64)
+#define __NR_ftruncate64 194
+__SYSCALL(__NR_ftruncate64, sys_ftruncate64)
+#define __NR_stat64 195
+__SYSCALL(__NR_stat64, sys_stat64)
+#define __NR_lstat64 196
+__SYSCALL(__NR_lstat64, sys_lstat64)
+#define __NR_fstat64 197
+__SYSCALL(__NR_fstat64, sys_fstat64)
+#define __NR_lchown32 198
+__SYSCALL(__NR_lchown32, sys_lchown)
+#define __NR_getuid32 199
+__SYSCALL(__NR_getuid32, sys_getuid)
+#define __NR_getgid32 200
+__SYSCALL(__NR_getgid32, sys_getgid)
+#define __NR_geteuid32 201
+__SYSCALL(__NR_geteuid32, sys_geteuid)
+#define __NR_getegid32 202
+__SYSCALL(__NR_getegid32, sys_getegid)
+#define __NR_setreuid32 203
+__SYSCALL(__NR_setreuid32, sys_setreuid)
+#define __NR_setregid32 204
+__SYSCALL(__NR_setregid32, sys_setregid)
+#define __NR_getgroups32 205
+__SYSCALL(__NR_getgroups32, sys_getgroups)
+#define __NR_setgroups32 206
+__SYSCALL(__NR_setgroups32, sys_setgroups)
+#define __NR_fchown32 207
+__SYSCALL(__NR_fchown32, sys_fchown)
+#define __NR_setresuid32 208
+__SYSCALL(__NR_setresuid32, sys_setresuid)
+#define __NR_getresuid32 209
+__SYSCALL(__NR_getresuid32, sys_getresuid)
+#define __NR_setresgid32 210
+__SYSCALL(__NR_setresgid32, sys_setresgid)
+#define __NR_getresgid32 211
+__SYSCALL(__NR_getresgid32, sys_getresgid)
+#define __NR_chown32 212
+__SYSCALL(__NR_chown32, sys_chown)
+#define __NR_setuid32 213
+__SYSCALL(__NR_setuid32, sys_setuid)
+#define __NR_setgid32 214
+__SYSCALL(__NR_setgid32, sys_setgid)
+#define __NR_setfsuid32 215
+__SYSCALL(__NR_setfsuid32, sys_setfsuid)
+#define __NR_setfsgid32 216
+__SYSCALL(__NR_setfsgid32, sys_setfsgid)
+#define __NR_getdents64 217
+__SYSCALL(__NR_getdents64, sys_getdents64)
+#define __NR_pivot_root 218
+__SYSCALL(__NR_pivot_root, sys_pivot_root)
+#define __NR_mincore 219
+__SYSCALL(__NR_mincore, sys_mincore)
+#define __NR_madvise 220
+__SYSCALL(__NR_madvise, sys_madvise)
+#define __NR_fcntl64 221
+__SYSCALL(__NR_fcntl64, sys_fcntl64)
+					/* 222 for tux */
+					/* 223 is unused */
+#define __NR_gettid 224
+__SYSCALL(__NR_gettid, sys_gettid)
+#define __NR_readahead 225
+__SYSCALL(__NR_readahead, sys_readahead)
+#define __NR_setxattr 226
+__SYSCALL(__NR_setxattr, sys_setxattr)
+#define __NR_lsetxattr 227
+__SYSCALL(__NR_lsetxattr, sys_lsetxattr)
+#define __NR_fsetxattr 228
+__SYSCALL(__NR_fsetxattr, sys_fsetxattr)
+#define __NR_getxattr 229
+__SYSCALL(__NR_getxattr, sys_getxattr)
+#define __NR_lgetxattr 230
+__SYSCALL(__NR_lgetxattr, sys_lgetxattr)
+#define __NR_fgetxattr 231
+__SYSCALL(__NR_fgetxattr, sys_fgetxattr)
+#define __NR_listxattr 232
+__SYSCALL(__NR_listxattr, sys_listxattr)
+#define __NR_llistxattr 233
+__SYSCALL(__NR_llistxattr, sys_llistxattr)
+#define __NR_flistxattr 234
+__SYSCALL(__NR_flistxattr, sys_flistxattr)
+#define __NR_removexattr 235
+__SYSCALL(__NR_removexattr, sys_removexattr)
+#define __NR_lremovexattr 236
+__SYSCALL(__NR_lremovexattr, sys_lremovexattr)
+#define __NR_fremovexattr 237
+__SYSCALL(__NR_fremovexattr, sys_fremovexattr)
+#define __NR_tkill 238
+__SYSCALL(__NR_tkill, sys_tkill)
+#define __NR_sendfile64 239
+__SYSCALL(__NR_sendfile64, sys_sendfile64)
+#define __NR_futex 240
+__SYSCALL(__NR_futex, sys_futex)
+#define __NR_sched_setaffinity 241
+__SYSCALL(__NR_sched_setaffinity, sys_sched_setaffinity)
+#define __NR_sched_getaffinity 242
+__SYSCALL(__NR_sched_getaffinity, sys_sched_getaffinity)
+#define __NR_io_setup 243
+__SYSCALL(__NR_io_setup, sys_io_setup)
+#define __NR_io_destroy 244
+__SYSCALL(__NR_io_destroy, sys_io_destroy)
+#define __NR_io_getevents 245
+__SYSCALL(__NR_io_getevents, sys_io_getevents)
+#define __NR_io_submit 246
+__SYSCALL(__NR_io_submit, sys_io_submit)
+#define __NR_io_cancel 247
+__SYSCALL(__NR_io_cancel, sys_io_cancel)
+#define __NR_exit_group 248
+__SYSCALL(__NR_exit_group, sys_exit_group)
+#define __NR_lookup_dcookie 249
+__SYSCALL(__NR_lookup_dcookie, sys_lookup_dcookie)
+#define __NR_epoll_create 250
+__SYSCALL(__NR_epoll_create, sys_epoll_create)
+#define __NR_epoll_ctl 251
+__SYSCALL(__NR_epoll_ctl, sys_epoll_ctl)
+#define __NR_epoll_wait 252
+__SYSCALL(__NR_epoll_wait, sys_epoll_wait)
+#define __NR_remap_file_pages 253
+__SYSCALL(__NR_remap_file_pages, sys_remap_file_pages)
+					/* 254 for set_thread_area */
+					/* 255 for get_thread_area */
+#define __NR_set_tid_address 256
+__SYSCALL(__NR_set_tid_address, sys_set_tid_address)
+#define __NR_timer_create 257
+__SYSCALL(__NR_timer_create, sys_timer_create)
+#define __NR_timer_settime 258
+__SYSCALL(__NR_timer_settime, sys_timer_settime)
+#define __NR_timer_gettime 259
+__SYSCALL(__NR_timer_gettime, sys_timer_gettime)
+#define __NR_timer_getoverrun 260
+__SYSCALL(__NR_timer_getoverrun, sys_timer_getoverrun)
+#define __NR_timer_delete 261
+__SYSCALL(__NR_timer_delete, sys_timer_delete)
+#define __NR_clock_settime 262
+__SYSCALL(__NR_clock_settime, sys_clock_settime)
+#define __NR_clock_gettime 263
+__SYSCALL(__NR_clock_gettime, sys_clock_gettime)
+#define __NR_clock_getres 264
+__SYSCALL(__NR_clock_getres, sys_clock_getres)
+#define __NR_clock_nanosleep 265
+__SYSCALL(__NR_clock_nanosleep, sys_clock_nanosleep)
+					/* 266 was sys_statfs64_wrapper */
+					/* 267 was sys_fstatfs64_wrapper */
+#define __NR_tgkill 268
+__SYSCALL(__NR_tgkill, sys_tgkill)
+#define __NR_utimes 269
+__SYSCALL(__NR_utimes, sys_utimes)
+					/* 270 was sys_fadvise64_64 */
+					/* 271 was sys_pciconfig_iobase */
+					/* 272 was sys_pciconfig_read */
+					/* 273 was sys_pciconfig_write */
+#define __NR_mq_open 274
+__SYSCALL(__NR_mq_open, sys_mq_open)
+#define __NR_mq_unlink 275
+__SYSCALL(__NR_mq_unlink, sys_mq_unlink)
+#define __NR_mq_timedsend 276
+__SYSCALL(__NR_mq_timedsend, sys_mq_timedsend)
+#define __NR_mq_timedreceive 277
+__SYSCALL(__NR_mq_timedreceive, sys_mq_timedreceive)
+#define __NR_mq_notify 278
+__SYSCALL(__NR_mq_notify, sys_mq_notify)
+#define __NR_mq_getsetattr 279
+__SYSCALL(__NR_mq_getsetattr, sys_mq_getsetattr)
+#define __NR_waitid 280
+__SYSCALL(__NR_waitid, sys_waitid)
+#define __NR_socket 281
+__SYSCALL(__NR_socket, sys_socket)
+#define __NR_bind 282
+__SYSCALL(__NR_bind, sys_bind)
+#define __NR_connect 283
+__SYSCALL(__NR_connect, sys_connect)
+#define __NR_listen 284
+__SYSCALL(__NR_listen, sys_listen)
+#define __NR_accept 285
+__SYSCALL(__NR_accept, sys_accept)
+#define __NR_getsockname 286
+__SYSCALL(__NR_getsockname, sys_getsockname)
+#define __NR_getpeername 287
+__SYSCALL(__NR_getpeername, sys_getpeername)
+#define __NR_socketpair 288
+__SYSCALL(__NR_socketpair, sys_socketpair)
+#define __NR_send 289
+__SYSCALL(__NR_send, sys_send)
+#define __NR_sendto 290
+__SYSCALL(__NR_sendto, sys_sendto)
+#define __NR_recv 291
+__SYSCALL(__NR_recv, sys_recv)
+#define __NR_recvfrom 292
+__SYSCALL(__NR_recvfrom, sys_recvfrom)
+#define __NR_shutdown 293
+__SYSCALL(__NR_shutdown, sys_shutdown)
+#define __NR_setsockopt 294
+__SYSCALL(__NR_setsockopt, sys_setsockopt)
+#define __NR_getsockopt 295
+__SYSCALL(__NR_getsockopt, sys_getsockopt)
+#define __NR_sendmsg 296
+__SYSCALL(__NR_sendmsg, sys_sendmsg)
+#define __NR_recvmsg 297
+__SYSCALL(__NR_recvmsg, sys_recvmsg)
+#define __NR_semop 298
+__SYSCALL(__NR_semop, sys_semop)
+#define __NR_semget 299
+__SYSCALL(__NR_semget, sys_semget)
+#define __NR_semctl 300
+__SYSCALL(__NR_semctl, sys_semctl)
+#define __NR_msgsnd 301
+__SYSCALL(__NR_msgsnd, sys_msgsnd)
+#define __NR_msgrcv 302
+__SYSCALL(__NR_msgrcv, sys_msgrcv)
+#define __NR_msgget 303
+__SYSCALL(__NR_msgget, sys_msgget)
+#define __NR_msgctl 304
+__SYSCALL(__NR_msgctl, sys_msgctl)
+#define __NR_shmat 305
+__SYSCALL(__NR_shmat, sys_shmat)
+#define __NR_shmdt 306
+__SYSCALL(__NR_shmdt, sys_shmdt)
+#define __NR_shmget 307
+__SYSCALL(__NR_shmget, sys_shmget)
+#define __NR_shmctl 308
+__SYSCALL(__NR_shmctl, sys_shmctl)
+#define __NR_add_key 309
+__SYSCALL(__NR_add_key, sys_add_key)
+#define __NR_request_key 310
+__SYSCALL(__NR_request_key, sys_request_key)
+#define __NR_keyctl 311
+__SYSCALL(__NR_keyctl, sys_keyctl)
+#define __NR_semtimedop 312
+__SYSCALL(__NR_semtimedop, sys_semtimedop)
+					/* 313 was for vserver */
+#define __NR_ioprio_set 314
+__SYSCALL(__NR_ioprio_set, sys_ioprio_set)
+#define __NR_ioprio_get 315
+__SYSCALL(__NR_ioprio_get, sys_ioprio_get)
+#define __NR_inotify_init 316
+__SYSCALL(__NR_inotify_init, sys_inotify_init)
+#define __NR_inotify_add_watch 317
+__SYSCALL(__NR_inotify_add_watch, sys_inotify_add_watch)
+#define __NR_inotify_rm_watch 318
+__SYSCALL(__NR_inotify_rm_watch, sys_inotify_rm_watch)
+#define __NR_mbind 319
+__SYSCALL(__NR_mbind, sys_mbind)
+#define __NR_get_mempolicy 320
+__SYSCALL(__NR_get_mempolicy, sys_get_mempolicy)
+#define __NR_set_mempolicy 321
+__SYSCALL(__NR_set_mempolicy, sys_set_mempolicy)
+#define __NR_openat 322
+__SYSCALL(__NR_openat, sys_openat)
+#define __NR_mkdirat 323
+__SYSCALL(__NR_mkdirat, sys_mkdirat)
+#define __NR_mknodat 324
+__SYSCALL(__NR_mknodat, sys_mknodat)
+#define __NR_fchownat 325
+__SYSCALL(__NR_fchownat, sys_fchownat)
+#define __NR_futimesat 326
+__SYSCALL(__NR_futimesat, sys_futimesat)
+#define __NR_fstatat64 327
+__SYSCALL(__NR_fstatat64, sys_fstatat64)
+#define __NR_unlinkat 328
+__SYSCALL(__NR_unlinkat, sys_unlinkat)
+#define __NR_renameat 329
+__SYSCALL(__NR_renameat, sys_renameat)
+#define __NR_linkat 330
+__SYSCALL(__NR_linkat, sys_linkat)
+#define __NR_symlinkat 331
+__SYSCALL(__NR_symlinkat, sys_symlinkat)
+#define __NR_readlinkat 332
+__SYSCALL(__NR_readlinkat, sys_readlinkat)
+#define __NR_fchmodat 333
+__SYSCALL(__NR_fchmodat, sys_fchmodat)
+#define __NR_faccessat 334
+__SYSCALL(__NR_faccessat, sys_faccessat)
+#define __NR_pselect6 335
+__SYSCALL(__NR_pselect6, sys_pselect6)
+#define __NR_ppoll 336
+__SYSCALL(__NR_ppoll, sys_ppoll)
+#define __NR_unshare 337
+__SYSCALL(__NR_unshare, sys_unshare)
+#define __NR_set_robust_list 338
+__SYSCALL(__NR_set_robust_list, sys_set_robust_list)
+#define __NR_get_robust_list 339
+__SYSCALL(__NR_get_robust_list, sys_get_robust_list)
+#define __NR_splice 340
+__SYSCALL(__NR_splice, sys_splice)
+#define __NR_uc32_sync_file_range 341
+__SYSCALL(__NR_uc32_sync_file_range, sys_sync_file_range2)
+#define __NR_sync_file_range2 __NR_uc32_sync_file_range
+#define __NR_tee 342
+__SYSCALL(__NR_tee, sys_tee)
+#define __NR_vmsplice 343
+__SYSCALL(__NR_vmsplice, sys_vmsplice)
+#define __NR_move_pages 344
+__SYSCALL(__NR_move_pages, sys_move_pages)
+#define __NR_getcpu 345
+__SYSCALL(__NR_getcpu, sys_getcpu)
+#define __NR_epoll_pwait 346
+__SYSCALL(__NR_epoll_pwait, sys_epoll_pwait)
+#define __NR_kexec_load 347
+__SYSCALL(__NR_kexec_load, sys_kexec_load)
+#define __NR_utimensat 348
+__SYSCALL(__NR_utimensat, sys_utimensat)
+#define __NR_signalfd 349
+__SYSCALL(__NR_signalfd, sys_signalfd)
+#define __NR_timerfd_create 350
+__SYSCALL(__NR_timerfd_create, sys_timerfd_create)
+#define __NR_eventfd 351
+__SYSCALL(__NR_eventfd, sys_eventfd)
+#define __NR_fallocate 352
+__SYSCALL(__NR_fallocate, sys_fallocate)
+#define __NR_timerfd_settime 353
+__SYSCALL(__NR_timerfd_settime, sys_timerfd_settime)
+#define __NR_timerfd_gettime 354
+__SYSCALL(__NR_timerfd_gettime, sys_timerfd_gettime)
+#define __NR_signalfd4 355
+__SYSCALL(__NR_signalfd4, sys_signalfd4)
+#define __NR_eventfd2 356
+__SYSCALL(__NR_eventfd2, sys_eventfd2)
+#define __NR_epoll_create1 357
+__SYSCALL(__NR_epoll_create1, sys_epoll_create1)
+#define __NR_dup3 358
+__SYSCALL(__NR_dup3, sys_dup3)
+#define __NR_pipe2 359
+__SYSCALL(__NR_pipe2, sys_pipe2)
+#define __NR_inotify_init1 360
+__SYSCALL(__NR_inotify_init1, sys_inotify_init1)
+#define __NR_preadv 361
+__SYSCALL(__NR_preadv, sys_preadv)
+#define __NR_pwritev 362
+__SYSCALL(__NR_pwritev, sys_pwritev)
+#define __NR_rt_tgsigqueueinfo 363
+__SYSCALL(__NR_rt_tgsigqueueinfo, sys_rt_tgsigqueueinfo)
+#define __NR_perf_event_open 364
+__SYSCALL(__NR_perf_event_open, sys_perf_event_open)
+#define __NR_recvmmsg 365
+__SYSCALL(__NR_recvmmsg, sys_recvmmsg)
+#define __NR_accept4 366
+__SYSCALL(__NR_accept4, sys_accept4)
+#define __NR_fanotify_init 367
+__SYSCALL(__NR_fanotify_init, sys_fanotify_init)
+#define __NR_fanotify_mark 368
+__SYSCALL(__NR_fanotify_mark, sys_fanotify_mark)
+#define __NR_prlimit64 369
+__SYSCALL(__NR_prlimit64, sys_prlimit64)
+
+#undef __NR_syscalls
+#define __NR_syscalls (__NR_prlimit64+1)
+
+#ifdef __KERNEL__
+
+#define __ARCH_WANT_IPC_PARSE_VERSION
+#define __ARCH_WANT_STAT64
+#define __ARCH_WANT_SYS_GETHOSTNAME
+#define __ARCH_WANT_SYS_PAUSE
+#define __ARCH_WANT_SYS_GETPGRP
+#define __ARCH_WANT_SYS_LLSEEK
+#define __ARCH_WANT_SYS_NICE
+#define __ARCH_WANT_SYS_SIGPENDING
+#define __ARCH_WANT_SYS_SIGPROCMASK
+#define __ARCH_WANT_SYS_RT_SIGACTION
+#define __ARCH_WANT_SYS_RT_SIGSUSPEND
+#define __ARCH_WANT_SYS_OLD_MMAP
+#define __ARCH_WANT_SYS_OLD_SELECT
+#define __ARCH_WANT_SYS_TIME
+#define __ARCH_WANT_SYS_IPC
+#define __ARCH_WANT_SYS_OLDUMOUNT
+#define __ARCH_WANT_SYS_ALARM
+#define __ARCH_WANT_SYS_UTIME
+#define __ARCH_WANT_SYS_OLD_GETRLIMIT
+#define __ARCH_WANT_OLD_READDIR
+#define __ARCH_WANT_SYS_SOCKETCALL
+#define __ARCH_WANT_SYS_FORK
+#define __ARCH_WANT_SYS_VFORK
+#define __ARCH_WANT_SYS_CLONE
+
+/*
+ * Unimplemented (or alternatively implemented) syscalls
+ */
+#define __IGNORE_fadvise64_64		1
+#define __IGNORE_migrate_pages		1
+#define __IGNORE_name_to_handle_at	1
+#define __IGNORE_open_by_handle_at	1
+#define __IGNORE_clock_adjtime		1
+#define __IGNORE_syncfs			1
+#define __IGNORE_sendmmsg		1
+#define __IGNORE_setns			1
+#define __IGNORE_statfs64		1
+#define __IGNORE_fstatfs64		1
+#define __IGNORE_process_vm_readv	1
+#define __IGNORE_process_vm_writev	1
+#define __IGNORE_kcmp			1
+#define __IGNORE_finit_module		1
+#define __IGNORE_sched_setattr		1
+#define __IGNORE_sched_getattr		1
+#define __IGNORE_renameat2		1
+#define __IGNORE_seccomp		1
+#define __IGNORE_getrandom		1
+#define __IGNORE_memfd_create		1
+
+#endif /* __KERNEL__ */
diff --git a/arch/unicore32/include/uapi/asm/unistd.h
b/arch/unicore32/include/uapi/asm/unistd.h
index 1f63c47..9cf71c7 100644
--- a/arch/unicore32/include/uapi/asm/unistd.h
+++ b/arch/unicore32/include/uapi/asm/unistd.h
@@ -12,6 +12,14 @@

 #define __ARCH_WANT_RENAMEAT

+#ifndef CONFIG_UNICORE32_OLDABI
+
 /* Use the standard ABI for syscalls. */
 #include <asm-generic/unistd.h>
 #define __ARCH_WANT_SYS_CLONE
+
+#else
+
+#include <asm/unistd-oldabi.h>
+
+#endif /* CONFIG_UNICORE32_OLDABI */
diff --git a/arch/unicore32/kernel/entry.S b/arch/unicore32/kernel/entry.S
index bcdedd8..3562d08 100644
--- a/arch/unicore32/kernel/entry.S
+++ b/arch/unicore32/kernel/entry.S
@@ -668,6 +668,23 @@ __cr_alignment:
 #endif
 	.ltorg

+#ifdef CONFIG_UNICORE32_OLDABI
+/*
+ * Special system call wrappers
+ */
+ENTRY(sys_clone_wrapper)
+		add	ip, sp, #S_OFF
+		stw	ip, [sp+], #4
+		b	sys_clone
+ENDPROC(sys_clone_wrapper)
+
+ENTRY(sys_sigreturn_wrapper)
+		add	r0, sp, #S_OFF
+		mov	why, #0		@ prevent syscall restart handling
+		b	__sys_sigreturn
+ENDPROC(sys_sigreturn_wrapper)
+#endif
+
 ENTRY(sys_rt_sigreturn)
 		add	r0, sp, #S_OFF
 		mov	why, #0		@ prevent syscall restart handling
diff --git a/arch/unicore32/kernel/signal.c
b/arch/unicore32/kernel/signal.c
index 4ae51cf..be75ef8 100644
--- a/arch/unicore32/kernel/signal.c
+++ b/arch/unicore32/kernel/signal.c
@@ -23,9 +23,18 @@
 /*
  * For UniCore syscalls, we encode the syscall number into the
instruction.
  */
+#ifdef CONFIG_UNICORE32_OLDABI
+#define SWI_SYS_SIGRETURN	(0xff000000 | (__NR_SYSCALL_BASE)	\
+					| (__NR_sigreturn))
+#define SWI_SYS_RT_SIGRETURN	(0xff000000 | (__NR_SYSCALL_BASE)	\
+					| (__NR_rt_sigreturn))
+#define SWI_SYS_RESTART		(0xff000000 | (__NR_SYSCALL_BASE)	\
+					| (__NR_restart_syscall))
+#else
 #define SWI_SYS_SIGRETURN	(0xff000000) /* error number for new abi */
#define SWI_SYS_RT_SIGRETURN	(0xff000000 | (__NR_rt_sigreturn))
 #define SWI_SYS_RESTART		(0xff000000 | (__NR_restart_syscall))
+#endif

 #define KERN_SIGRETURN_CODE	(KUSER_VECPAGE_BASE + 0x00000500)
 #define KERN_RESTART_CODE	(KERN_SIGRETURN_CODE + sizeof(sigreturn_codes))
@@ -100,6 +109,38 @@ static int restore_sigframe(struct pt_regs *regs,
struct sigframe __user *sf)
 	return err;
 }

+#ifdef CONFIG_UNICORE32_OLDABI
+asmlinkage int __sys_sigreturn(struct pt_regs *regs)
+{
+	struct sigframe __user *frame;
+
+	/* Always make any pending restarted system calls return -EINTR */
+	current->restart_block.fn = do_no_restart_syscall;
+
+	/*
+	 * Since we stacked the signal on a 64-bit boundary,
+	 * then 'sp' should be word aligned here.  If it's
+	 * not, then the user is trying to mess with us.
+	 */
+	if (regs->UCreg_sp & 7)
+		goto badframe;
+
+	frame = (struct sigframe __user *)regs->UCreg_sp;
+
+	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
+		goto badframe;
+
+	if (restore_sigframe(regs, frame))
+		goto badframe;
+
+	return regs->UCreg_00;
+
+badframe:
+	force_sig(SIGSEGV, current);
+	return 0;
+}
+#endif
+
 asmlinkage int __sys_rt_sigreturn(struct pt_regs *regs)
 {
 	struct rt_sigframe __user *frame;
-- 
1.9.1