microblaze: add system call table generation support
authorFiroz Khan <firoz.khan@linaro.org>
Tue, 13 Nov 2018 06:04:33 +0000 (11:34 +0530)
committerMichal Simek <michal.simek@xilinx.com>
Fri, 16 Nov 2018 07:24:33 +0000 (08:24 +0100)
The system call tables are in different format in all
architecture and it will be difficult to manually add,
modify or delete the syscall table entries in the res-
pective files. To make it easy by keeping a script and
which will generate the uapi header and syscall table
file. This change will also help to unify the implemen-
tation across all architectures.

The system call table generation script is added in
kernel/syscalls directory which contain the scripts to
generate both uapi header file and system call table
files. The syscall.tbl will be input for the scripts.

syscall.tbl contains the list of available system calls
along with system call number and corresponding entry
point. Add a new system call in this architecture will
be possible by adding new entry in the syscall.tbl file.

Adding a new table entry consisting of:
   - System call number.
- ABI.
- System call name.
- Entry point name.

syscallhdr.sh and syscalltbl.sh will generate uapi header
unistd_32.h and syscall_table.h files respectively. Both
.sh files will parse the content syscall.tbl to generate
the header and table files. unistd_32.h will be included
by uapi/asm/unistd.h and syscall_table.h is included by
kernel/syscall_table.S - the real system call table.

ARM, s390 and x86 architecuture does have similar support.
I leverage their implementation to come up with a generic
solution.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
arch/microblaze/kernel/syscalls/Makefile [new file with mode: 0644]
arch/microblaze/kernel/syscalls/syscall.tbl [new file with mode: 0644]
arch/microblaze/kernel/syscalls/syscallhdr.sh [new file with mode: 0644]
arch/microblaze/kernel/syscalls/syscalltbl.sh [new file with mode: 0644]

diff --git a/arch/microblaze/kernel/syscalls/Makefile b/arch/microblaze/kernel/syscalls/Makefile
new file mode 100644 (file)
index 0000000..659faef
--- /dev/null
@@ -0,0 +1,38 @@
+# SPDX-License-Identifier: GPL-2.0
+kapi := arch/$(SRCARCH)/include/generated/asm
+uapi := arch/$(SRCARCH)/include/generated/uapi/asm
+
+_dummy := $(shell [ -d '$(uapi)' ] || mkdir -p '$(uapi)')      \
+         $(shell [ -d '$(kapi)' ] || mkdir -p '$(kapi)')
+
+syscall := $(srctree)/$(src)/syscall.tbl
+syshdr := $(srctree)/$(src)/syscallhdr.sh
+systbl := $(srctree)/$(src)/syscalltbl.sh
+
+quiet_cmd_syshdr = SYSHDR  $@
+      cmd_syshdr = $(CONFIG_SHELL) '$(syshdr)' '$<' '$@'       \
+                  '$(syshdr_abis_$(basetarget))'               \
+                  '$(syshdr_pfx_$(basetarget))'                \
+                  '$(syshdr_offset_$(basetarget))'
+
+quiet_cmd_systbl = SYSTBL  $@
+      cmd_systbl = $(CONFIG_SHELL) '$(systbl)' '$<' '$@'       \
+                  '$(systbl_abis_$(basetarget))'               \
+                  '$(systbl_abi_$(basetarget))'                \
+                  '$(systbl_offset_$(basetarget))'
+
+$(uapi)/unistd_32.h: $(syscall) $(syshdr)
+       $(call if_changed,syshdr)
+
+$(kapi)/syscall_table.h: $(syscall) $(systbl)
+       $(call if_changed,systbl)
+
+uapisyshdr-y           += unistd_32.h
+kapisyshdr-y           += syscall_table.h
+
+targets        += $(uapisyshdr-y) $(kapisyshdr-y)
+
+PHONY += all
+all: $(addprefix $(uapi)/,$(uapisyshdr-y))
+all: $(addprefix $(kapi)/,$(kapisyshdr-y))
+       @:
diff --git a/arch/microblaze/kernel/syscalls/syscall.tbl b/arch/microblaze/kernel/syscalls/syscall.tbl
new file mode 100644 (file)
index 0000000..a24d09e
--- /dev/null
@@ -0,0 +1,410 @@
+# SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
+#
+# system call numbers and entry vectors for microblaze
+#
+# The format is:
+# <number> <abi> <name> <entry point>
+#
+# The <abi> is always "common" for this file
+#
+0      common  restart_syscall                 sys_restart_syscall
+1      common  exit                            sys_exit
+2      common  fork                            sys_fork
+3      common  read                            sys_read
+4      common  write                           sys_write
+5      common  open                            sys_open
+6      common  close                           sys_close
+7      common  waitpid                         sys_waitpid
+8      common  creat                           sys_creat
+9      common  link                            sys_link
+10     common  unlink                          sys_unlink
+11     common  execve                          sys_execve
+12     common  chdir                           sys_chdir
+13     common  time                            sys_time
+14     common  mknod                           sys_mknod
+15     common  chmod                           sys_chmod
+16     common  lchown                          sys_lchown
+17     common  break                           sys_ni_syscall
+18     common  oldstat                         sys_ni_syscall
+19     common  lseek                           sys_lseek
+20     common  getpid                          sys_getpid
+21     common  mount                           sys_mount
+22     common  umount                          sys_oldumount
+23     common  setuid                          sys_setuid
+24     common  getuid                          sys_getuid
+25     common  stime                           sys_stime
+26     common  ptrace                          sys_ptrace
+27     common  alarm                           sys_alarm
+28     common  oldfstat                        sys_ni_syscall
+29     common  pause                           sys_pause
+30     common  utime                           sys_utime
+31     common  stty                            sys_ni_syscall
+32     common  gtty                            sys_ni_syscall
+33     common  access                          sys_access
+34     common  nice                            sys_nice
+35     common  ftime                           sys_ni_syscall
+36     common  sync                            sys_sync
+37     common  kill                            sys_kill
+38     common  rename                          sys_rename
+39     common  mkdir                           sys_mkdir
+40     common  rmdir                           sys_rmdir
+41     common  dup                             sys_dup
+42     common  pipe                            sys_pipe
+43     common  times                           sys_times
+44     common  prof                            sys_ni_syscall
+45     common  brk                             sys_brk
+46     common  setgid                          sys_setgid
+47     common  getgid                          sys_getgid
+48     common  signal                          sys_signal
+49     common  geteuid                         sys_geteuid
+50     common  getegid                         sys_getegid
+51     common  acct                            sys_acct
+52     common  umount2                         sys_umount
+53     common  lock                            sys_ni_syscall
+54     common  ioctl                           sys_ioctl
+55     common  fcntl                           sys_fcntl
+56     common  mpx                             sys_ni_syscall
+57     common  setpgid                         sys_setpgid
+58     common  ulimit                          sys_ni_syscall
+59     common  oldolduname                     sys_ni_syscall
+60     common  umask                           sys_umask
+61     common  chroot                          sys_chroot
+62     common  ustat                           sys_ustat
+63     common  dup2                            sys_dup2
+64     common  getppid                         sys_getppid
+65     common  getpgrp                         sys_getpgrp
+66     common  setsid                          sys_setsid
+67     common  sigaction                       sys_ni_syscall
+68     common  sgetmask                        sys_sgetmask
+69     common  ssetmask                        sys_ssetmask
+70     common  setreuid                        sys_setreuid
+71     common  setregid                        sys_setregid
+72     common  sigsuspend                      sys_ni_syscall
+73     common  sigpending                      sys_sigpending
+74     common  sethostname                     sys_sethostname
+75     common  setrlimit                       sys_setrlimit
+76     common  getrlimit                       sys_ni_syscall
+77     common  getrusage                       sys_getrusage
+78     common  gettimeofday                    sys_gettimeofday
+79     common  settimeofday                    sys_settimeofday
+80     common  getgroups                       sys_getgroups
+81     common  setgroups                       sys_setgroups
+82     common  select                          sys_ni_syscall
+83     common  symlink                         sys_symlink
+84     common  oldlstat                        sys_ni_syscall
+85     common  readlink                        sys_readlink
+86     common  uselib                          sys_uselib
+87     common  swapon                          sys_swapon
+88     common  reboot                          sys_reboot
+89     common  readdir                         sys_ni_syscall
+90     common  mmap                            sys_mmap
+91     common  munmap                          sys_munmap
+92     common  truncate                        sys_truncate
+93     common  ftruncate                       sys_ftruncate
+94     common  fchmod                          sys_fchmod
+95     common  fchown                          sys_fchown
+96     common  getpriority                     sys_getpriority
+97     common  setpriority                     sys_setpriority
+98     common  profil                          sys_ni_syscall
+99     common  statfs                          sys_statfs
+100    common  fstatfs                         sys_fstatfs
+101    common  ioperm                          sys_ni_syscall
+102    common  socketcall                      sys_socketcall
+103    common  syslog                          sys_syslog
+104    common  setitimer                       sys_setitimer
+105    common  getitimer                       sys_getitimer
+106    common  stat                            sys_newstat
+107    common  lstat                           sys_newlstat
+108    common  fstat                           sys_newfstat
+109    common  olduname                        sys_ni_syscall
+110    common  iopl                            sys_ni_syscall
+111    common  vhangup                         sys_vhangup
+112    common  idle                            sys_ni_syscall
+113    common  vm86old                         sys_ni_syscall
+114    common  wait4                           sys_wait4
+115    common  swapoff                         sys_swapoff
+116    common  sysinfo                         sys_sysinfo
+117    common  ipc                             sys_ni_syscall
+118    common  fsync                           sys_fsync
+119    common  sigreturn                       sys_ni_syscall
+120    common  clone                           sys_clone
+121    common  setdomainname                   sys_setdomainname
+122    common  uname                           sys_newuname
+123    common  modify_ldt                      sys_ni_syscall
+124    common  adjtimex                        sys_adjtimex
+125    common  mprotect                        sys_mprotect
+126    common  sigprocmask                     sys_sigprocmask
+127    common  create_module                   sys_ni_syscall
+128    common  init_module                     sys_init_module
+129    common  delete_module                   sys_delete_module
+130    common  get_kernel_syms                 sys_ni_syscall
+131    common  quotactl                        sys_quotactl
+132    common  getpgid                         sys_getpgid
+133    common  fchdir                          sys_fchdir
+134    common  bdflush                         sys_bdflush
+135    common  sysfs                           sys_sysfs
+136    common  personality                     sys_personality
+137    common  afs_syscall                     sys_ni_syscall
+138    common  setfsuid                        sys_setfsuid
+139    common  setfsgid                        sys_setfsgid
+140    common  _llseek                         sys_llseek
+141    common  getdents                        sys_getdents
+142    common  _newselect                      sys_select
+143    common  flock                           sys_flock
+144    common  msync                           sys_msync
+145    common  readv                           sys_readv
+146    common  writev                          sys_writev
+147    common  getsid                          sys_getsid
+148    common  fdatasync                       sys_fdatasync
+149    common  _sysctl                         sys_sysctl
+150    common  mlock                           sys_mlock
+151    common  munlock                         sys_munlock
+152    common  mlockall                        sys_mlockall
+153    common  munlockall                      sys_munlockall
+154    common  sched_setparam                  sys_sched_setparam
+155    common  sched_getparam                  sys_sched_getparam
+156    common  sched_setscheduler              sys_sched_setscheduler
+157    common  sched_getscheduler              sys_sched_getscheduler
+158    common  sched_yield                     sys_sched_yield
+159    common  sched_get_priority_max          sys_sched_get_priority_max
+160    common  sched_get_priority_min          sys_sched_get_priority_min
+161    common  sched_rr_get_interval           sys_sched_rr_get_interval
+162    common  nanosleep                       sys_nanosleep
+163    common  mremap                          sys_mremap
+164    common  setresuid                       sys_setresuid
+165    common  getresuid                       sys_getresuid
+166    common  vm86                            sys_ni_syscall
+167    common  query_module                    sys_ni_syscall
+168    common  poll                            sys_poll
+169    common  nfsservctl                      sys_ni_syscall
+170    common  setresgid                       sys_setresgid
+171    common  getresgid                       sys_getresgid
+172    common  prctl                           sys_prctl
+173    common  rt_sigreturn                    sys_rt_sigreturn_wrapper
+174    common  rt_sigaction                    sys_rt_sigaction
+175    common  rt_sigprocmask                  sys_rt_sigprocmask
+176    common  rt_sigpending                   sys_rt_sigpending
+177    common  rt_sigtimedwait                 sys_rt_sigtimedwait
+178    common  rt_sigqueueinfo                 sys_rt_sigqueueinfo
+179    common  rt_sigsuspend                   sys_rt_sigsuspend
+180    common  pread64                         sys_pread64
+181    common  pwrite64                        sys_pwrite64
+182    common  chown                           sys_chown
+183    common  getcwd                          sys_getcwd
+184    common  capget                          sys_capget
+185    common  capset                          sys_capset
+186    common  sigaltstack                     sys_ni_syscall
+187    common  sendfile                        sys_sendfile
+188    common  getpmsg                         sys_ni_syscall
+189    common  putpmsg                         sys_ni_syscall
+190    common  vfork                           sys_vfork
+191    common  ugetrlimit                      sys_getrlimit
+192    common  mmap2                           sys_mmap2
+193    common  truncate64                      sys_truncate64
+194    common  ftruncate64                     sys_ftruncate64
+195    common  stat64                          sys_stat64
+196    common  lstat64                         sys_lstat64
+197    common  fstat64                         sys_fstat64
+198    common  lchown32                        sys_lchown
+199    common  getuid32                        sys_getuid
+200    common  getgid32                        sys_getgid
+201    common  geteuid32                       sys_geteuid
+202    common  getegid32                       sys_getegid
+203    common  setreuid32                      sys_setreuid
+204    common  setregid32                      sys_setregid
+205    common  getgroups32                     sys_getgroups
+206    common  setgroups32                     sys_setgroups
+207    common  fchown32                        sys_fchown
+208    common  setresuid32                     sys_setresuid
+209    common  getresuid32                     sys_getresuid
+210    common  setresgid32                     sys_setresgid
+211    common  getresgid32                     sys_getresgid
+212    common  chown32                         sys_chown
+213    common  setuid32                        sys_setuid
+214    common  setgid32                        sys_setgid
+215    common  setfsuid32                      sys_setfsuid
+216    common  setfsgid32                      sys_setfsgid
+217    common  pivot_root                      sys_pivot_root
+218    common  mincore                         sys_mincore
+219    common  madvise                         sys_madvise
+220    common  getdents64                      sys_getdents64
+221    common  fcntl64                         sys_fcntl64
+# 222 is reserved for TUX
+# 223 is unused
+224    common  gettid                          sys_gettid
+225    common  readahead                       sys_readahead
+226    common  setxattr                        sys_setxattr
+227    common  lsetxattr                       sys_lsetxattr
+228    common  fsetxattr                       sys_fsetxattr
+229    common  getxattr                        sys_getxattr
+230    common  lgetxattr                       sys_lgetxattr
+231    common  fgetxattr                       sys_fgetxattr
+232    common  listxattr                       sys_listxattr
+233    common  llistxattr                      sys_llistxattr
+234    common  flistxattr                      sys_flistxattr
+235    common  removexattr                     sys_removexattr
+236    common  lremovexattr                    sys_lremovexattr
+237    common  fremovexattr                    sys_fremovexattr
+238    common  tkill                           sys_tkill
+239    common  sendfile64                      sys_sendfile64
+240    common  futex                           sys_futex
+241    common  sched_setaffinity               sys_sched_setaffinity
+242    common  sched_getaffinity               sys_sched_getaffinity
+243    common  set_thread_area                 sys_ni_syscall
+244    common  get_thread_area                 sys_ni_syscall
+245    common  io_setup                        sys_io_setup
+246    common  io_destroy                      sys_io_destroy
+247    common  io_getevents                    sys_io_getevents
+248    common  io_submit                       sys_io_submit
+249    common  io_cancel                       sys_io_cancel
+250    common  fadvise64                       sys_fadvise64
+# 251 is available for reuse (was briefly sys_set_zone_reclaim)
+252    common  exit_group                      sys_exit_group
+253    common  lookup_dcookie                  sys_lookup_dcookie
+254    common  epoll_create                    sys_epoll_create
+255    common  epoll_ctl                       sys_epoll_ctl
+256    common  epoll_wait                      sys_epoll_wait
+257    common  remap_file_pages                sys_remap_file_pages
+258    common  set_tid_address                 sys_set_tid_address
+259    common  timer_create                    sys_timer_create
+260    common  timer_settime                   sys_timer_settime
+261    common  timer_gettime                   sys_timer_gettime
+262    common  timer_getoverrun                sys_timer_getoverrun
+263    common  timer_delete                    sys_timer_delete
+264    common  clock_settime                   sys_clock_settime
+265    common  clock_gettime                   sys_clock_gettime
+266    common  clock_getres                    sys_clock_getres
+267    common  clock_nanosleep                 sys_clock_nanosleep
+268    common  statfs64                        sys_statfs64
+269    common  fstatfs64                       sys_fstatfs64
+270    common  tgkill                          sys_tgkill
+271    common  utimes                          sys_utimes
+272    common  fadvise64_64                    sys_fadvise64_64
+273    common  vserver                         sys_ni_syscall
+274    common  mbind                           sys_mbind
+275    common  get_mempolicy                   sys_get_mempolicy
+276    common  set_mempolicy                   sys_set_mempolicy
+277    common  mq_open                         sys_mq_open
+278    common  mq_unlink                       sys_mq_unlink
+279    common  mq_timedsend                    sys_mq_timedsend
+280    common  mq_timedreceive                 sys_mq_timedreceive
+281    common  mq_notify                       sys_mq_notify
+282    common  mq_getsetattr                   sys_mq_getsetattr
+283    common  kexec_load                      sys_kexec_load
+284    common  waitid                          sys_waitid
+# 285 was setaltroot
+286    common  add_key                         sys_add_key
+287    common  request_key                     sys_request_key
+288    common  keyctl                          sys_keyctl
+289    common  ioprio_set                      sys_ioprio_set
+290    common  ioprio_get                      sys_ioprio_get
+291    common  inotify_init                    sys_inotify_init
+292    common  inotify_add_watch               sys_inotify_add_watch
+293    common  inotify_rm_watch                sys_inotify_rm_watch
+294    common  migrate_pages                   sys_ni_syscall
+295    common  openat                          sys_openat
+296    common  mkdirat                         sys_mkdirat
+297    common  mknodat                         sys_mknodat
+298    common  fchownat                        sys_fchownat
+299    common  futimesat                       sys_futimesat
+300    common  fstatat64                       sys_fstatat64
+301    common  unlinkat                        sys_unlinkat
+302    common  renameat                        sys_renameat
+303    common  linkat                          sys_linkat
+304    common  symlinkat                       sys_symlinkat
+305    common  readlinkat                      sys_readlinkat
+306    common  fchmodat                        sys_fchmodat
+307    common  faccessat                       sys_faccessat
+308    common  pselect6                        sys_pselect6
+309    common  ppoll                           sys_ppoll
+310    common  unshare                         sys_unshare
+311    common  set_robust_list                 sys_set_robust_list
+312    common  get_robust_list                 sys_get_robust_list
+313    common  splice                          sys_splice
+314    common  sync_file_range                 sys_sync_file_range
+315    common  tee                             sys_tee
+316    common  vmsplice                        sys_vmsplice
+317    common  move_pages                      sys_move_pages
+318    common  getcpu                          sys_getcpu
+319    common  epoll_pwait                     sys_epoll_pwait
+320    common  utimensat                       sys_utimensat
+321    common  signalfd                        sys_signalfd
+322    common  timerfd_create                  sys_timerfd_create
+323    common  eventfd                         sys_eventfd
+324    common  fallocate                       sys_fallocate
+325    common  semtimedop                      sys_semtimedop
+326    common  timerfd_settime                 sys_timerfd_settime
+327    common  timerfd_gettime                 sys_timerfd_gettime
+328    common  semctl                          sys_semctl
+329    common  semget                          sys_semget
+330    common  semop                           sys_semop
+331    common  msgctl                          sys_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
+337    common  shmdt                           sys_shmdt
+338    common  shmget                          sys_shmget
+339    common  signalfd4                       sys_signalfd4
+340    common  eventfd2                        sys_eventfd2
+341    common  epoll_create1                   sys_epoll_create1
+342    common  dup3                            sys_dup3
+343    common  pipe2                           sys_pipe2
+344    common  inotify_init1                   sys_inotify_init1
+345    common  socket                          sys_socket
+346    common  socketpair                      sys_socketpair
+347    common  bind                            sys_bind
+348    common  listen                          sys_listen
+349    common  accept                          sys_accept
+350    common  connect                         sys_connect
+351    common  getsockname                     sys_getsockname
+352    common  getpeername                     sys_getpeername
+353    common  sendto                          sys_sendto
+354    common  send                            sys_send
+355    common  recvfrom                        sys_recvfrom
+356    common  recv                            sys_recv
+357    common  setsockopt                      sys_setsockopt
+358    common  getsockopt                      sys_getsockopt
+359    common  shutdown                        sys_shutdown
+360    common  sendmsg                         sys_sendmsg
+361    common  recvmsg                         sys_recvmsg
+362    common  accept4                         sys_accept4
+363    common  preadv                          sys_preadv
+364    common  pwritev                         sys_pwritev
+365    common  rt_tgsigqueueinfo               sys_rt_tgsigqueueinfo
+366    common  perf_event_open                 sys_perf_event_open
+367    common  recvmmsg                        sys_recvmmsg
+368    common  fanotify_init                   sys_fanotify_init
+369    common  fanotify_mark                   sys_fanotify_mark
+370    common  prlimit64                       sys_prlimit64
+371    common  name_to_handle_at               sys_name_to_handle_at
+372    common  open_by_handle_at               sys_open_by_handle_at
+373    common  clock_adjtime                   sys_clock_adjtime
+374    common  syncfs                          sys_syncfs
+375    common  setns                           sys_setns
+376    common  sendmmsg                        sys_sendmmsg
+377    common  process_vm_readv                sys_process_vm_readv
+378    common  process_vm_writev               sys_process_vm_writev
+379    common  kcmp                            sys_kcmp
+380    common  finit_module                    sys_finit_module
+381    common  sched_setattr                   sys_sched_setattr
+382    common  sched_getattr                   sys_sched_getattr
+383    common  renameat2                       sys_renameat2
+384    common  seccomp                         sys_seccomp
+385    common  getrandom                       sys_getrandom
+386    common  memfd_create                    sys_memfd_create
+387    common  bpf                             sys_bpf
+388    common  execveat                        sys_execveat
+389    common  userfaultfd                     sys_userfaultfd
+390    common  membarrier                      sys_membarrier
+391    common  mlock2                          sys_mlock2
+392    common  copy_file_range                 sys_copy_file_range
+393    common  preadv2                         sys_preadv2
+394    common  pwritev2                        sys_pwritev2
+395    common  pkey_mprotect                   sys_pkey_mprotect
+396    common  pkey_alloc                      sys_pkey_alloc
+397    common  pkey_free                       sys_pkey_free
+398    common  statx                           sys_statx
+399    common  io_pgetevents                   sys_io_pgetevents
+400    common  rseq                            sys_rseq
diff --git a/arch/microblaze/kernel/syscalls/syscallhdr.sh b/arch/microblaze/kernel/syscalls/syscallhdr.sh
new file mode 100644 (file)
index 0000000..2e9062a
--- /dev/null
@@ -0,0 +1,36 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+in="$1"
+out="$2"
+my_abis=`echo "($3)" | tr ',' '|'`
+prefix="$4"
+offset="$5"
+
+fileguard=_UAPI_ASM_MICROBLAZE_`basename "$out" | sed \
+       -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
+       -e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g'`
+grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
+       printf "#ifndef %s\n" "${fileguard}"
+       printf "#define %s\n" "${fileguard}"
+       printf "\n"
+
+       nxt=0
+       while read nr abi name entry ; do
+               if [ -z "$offset" ]; then
+                       printf "#define __NR_%s%s\t%s\n" \
+                               "${prefix}" "${name}" "${nr}"
+               else
+                       printf "#define __NR_%s%s\t(%s + %s)\n" \
+                               "${prefix}" "${name}" "${offset}" "${nr}"
+               fi
+               nxt=$((nr+1))
+       done
+
+       printf "\n"
+       printf "#ifdef __KERNEL__\n"
+       printf "#define __NR_syscalls\t%s\n" "${nxt}"
+       printf "#endif\n"
+       printf "\n"
+       printf "#endif /* %s */" "${fileguard}"
+) > "$out"
diff --git a/arch/microblaze/kernel/syscalls/syscalltbl.sh b/arch/microblaze/kernel/syscalls/syscalltbl.sh
new file mode 100644 (file)
index 0000000..85d78d9
--- /dev/null
@@ -0,0 +1,32 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+in="$1"
+out="$2"
+my_abis=`echo "($3)" | tr ',' '|'`
+my_abi="$4"
+offset="$5"
+
+emit() {
+       t_nxt="$1"
+       t_nr="$2"
+       t_entry="$3"
+
+       while [ $t_nxt -lt $t_nr ]; do
+               printf "__SYSCALL(%s, sys_ni_syscall, )\n" "${t_nxt}"
+               t_nxt=$((t_nxt+1))
+       done
+       printf "__SYSCALL(%s, %s, )\n" "${t_nxt}" "${t_entry}"
+}
+
+grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
+       nxt=0
+       if [ -z "$offset" ]; then
+               offset=0
+       fi
+
+       while read nr abi name entry ; do
+               emit $((nxt+offset)) $((nr+offset)) $entry
+               nxt=$((nr+1))
+       done
+) > "$out"