]> www.infradead.org Git - users/jedix/linux-maple.git/commitdiff
ia64: add system call table generation support
authorFiroz Khan <firoz.khan@linaro.org>
Tue, 13 Nov 2018 06:57:44 +0000 (12:27 +0530)
committerTony Luck <tony.luck@intel.com>
Tue, 13 Nov 2018 16:56:19 +0000 (08:56 -0800)
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_64.h and syscall_table.h files respectively. Both
.sh files will parse the content syscall.tbl to generate
the header and table files. unistd_64.h will be included
by uapi/asm/unistd.h and syscall_table.h is included by
kernel/entry.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: Tony Luck <tony.luck@intel.com>
arch/ia64/kernel/syscalls/Makefile [new file with mode: 0644]
arch/ia64/kernel/syscalls/syscall.tbl [new file with mode: 0644]
arch/ia64/kernel/syscalls/syscallhdr.sh [new file with mode: 0644]
arch/ia64/kernel/syscalls/syscalltbl.sh [new file with mode: 0644]

diff --git a/arch/ia64/kernel/syscalls/Makefile b/arch/ia64/kernel/syscalls/Makefile
new file mode 100644 (file)
index 0000000..813a58c
--- /dev/null
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: GPL-2.0
+kapi := arch/$(SRCARCH)/include/generated/asm
+uapi := arch/$(SRCARCH)/include/generated/uapi/asm
+
+_dummy := $(shell [ -d '$(uapi)' ] || mkdir -p '$(uapi)')      \
+         $(shell [ -d '$(kapi)' ] || mkdir -p '$(kapi)')
+
+syscall := $(srctree)/$(src)/syscall.tbl
+syshdr := $(srctree)/$(src)/syscallhdr.sh
+systbl := $(srctree)/$(src)/syscalltbl.sh
+
+quiet_cmd_syshdr = SYSHDR  $@
+      cmd_syshdr = $(CONFIG_SHELL) '$(syshdr)' '$<' '$@'       \
+                  '$(syshdr_abis_$(basetarget))'               \
+                  '$(syshdr_pfx_$(basetarget))'                \
+                  '$(syshdr_offset_$(basetarget))'
+
+quiet_cmd_systbl = SYSTBL  $@
+      cmd_systbl = $(CONFIG_SHELL) '$(systbl)' '$<' '$@'       \
+                  '$(systbl_abis_$(basetarget))'               \
+                  '$(systbl_abi_$(basetarget))'                \
+                  '$(systbl_offset_$(basetarget))'
+
+syshdr_offset_unistd_64 := __NR_Linux
+$(uapi)/unistd_64.h: $(syscall) $(syshdr)
+       $(call if_changed,syshdr)
+
+systbl_offset_syscall_table := 1024
+$(kapi)/syscall_table.h: $(syscall) $(systbl)
+       $(call if_changed,systbl)
+
+uapisyshdr-y           += unistd_64.h
+kapisyshdr-y           += syscall_table.h
+
+targets        += $(uapisyshdr-y) $(kapisyshdr-y)
+
+PHONY += all
+all: $(addprefix $(uapi)/,$(uapisyshdr-y))
+all: $(addprefix $(kapi)/,$(kapisyshdr-y))
+       @:
diff --git a/arch/ia64/kernel/syscalls/syscall.tbl b/arch/ia64/kernel/syscalls/syscall.tbl
new file mode 100644 (file)
index 0000000..b22203b
--- /dev/null
@@ -0,0 +1,337 @@
+# SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
+#
+# Linux system call numbers and entry vectors for ia64
+#
+# The format is:
+# <number> <abi> <name> <entry point>
+#
+# Add 1024 to <number> will get the actual system call number
+#
+# The <abi> is always "common" for this file
+#
+0      common  ni_syscall                      sys_ni_syscall
+1      common  exit                            sys_exit
+2      common  read                            sys_read
+3      common  write                           sys_write
+4      common  open                            sys_open
+5      common  close                           sys_close
+6      common  creat                           sys_creat
+7      common  link                            sys_link
+8      common  unlink                          sys_unlink
+9      common  execve                          ia64_execve
+10     common  chdir                           sys_chdir
+11     common  fchdir                          sys_fchdir
+12     common  utimes                          sys_utimes
+13     common  mknod                           sys_mknod
+14     common  chmod                           sys_chmod
+15     common  chown                           sys_chown
+16     common  lseek                           sys_lseek
+17     common  getpid                          sys_getpid
+18     common  getppid                         sys_getppid
+19     common  mount                           sys_mount
+20     common  umount                          sys_umount
+21     common  setuid                          sys_setuid
+22     common  getuid                          sys_getuid
+23     common  geteuid                         sys_geteuid
+24     common  ptrace                          sys_ptrace
+25     common  access                          sys_access
+26     common  sync                            sys_sync
+27     common  fsync                           sys_fsync
+28     common  fdatasync                       sys_fdatasync
+29     common  kill                            sys_kill
+30     common  rename                          sys_rename
+31     common  mkdir                           sys_mkdir
+32     common  rmdir                           sys_rmdir
+33     common  dup                             sys_dup
+34     common  pipe                            sys_ia64_pipe
+35     common  times                           sys_times
+36     common  brk                             ia64_brk
+37     common  setgid                          sys_setgid
+38     common  getgid                          sys_getgid
+39     common  getegid                         sys_getegid
+40     common  acct                            sys_acct
+41     common  ioctl                           sys_ioctl
+42     common  fcntl                           sys_fcntl
+43     common  umask                           sys_umask
+44     common  chroot                          sys_chroot
+45     common  ustat                           sys_ustat
+46     common  dup2                            sys_dup2
+47     common  setreuid                        sys_setreuid
+48     common  setregid                        sys_setregid
+49     common  getresuid                       sys_getresuid
+50     common  setresuid                       sys_setresuid
+51     common  getresgid                       sys_getresgid
+52     common  setresgid                       sys_setresgid
+53     common  getgroups                       sys_getgroups
+54     common  setgroups                       sys_setgroups
+55     common  getpgid                         sys_getpgid
+56     common  setpgid                         sys_setpgid
+57     common  setsid                          sys_setsid
+58     common  getsid                          sys_getsid
+59     common  sethostname                     sys_sethostname
+60     common  setrlimit                       sys_setrlimit
+61     common  getrlimit                       sys_getrlimit
+62     common  getrusage                       sys_getrusage
+63     common  gettimeofday                    sys_gettimeofday
+64     common  settimeofday                    sys_settimeofday
+65     common  select                          sys_select
+66     common  poll                            sys_poll
+67     common  symlink                         sys_symlink
+68     common  readlink                        sys_readlink
+69     common  uselib                          sys_uselib
+70     common  swapon                          sys_swapon
+71     common  swapoff                         sys_swapoff
+72     common  reboot                          sys_reboot
+73     common  truncate                        sys_truncate
+74     common  ftruncate                       sys_ftruncate
+75     common  fchmod                          sys_fchmod
+76     common  fchown                          sys_fchown
+77     common  getpriority                     ia64_getpriority
+78     common  setpriority                     sys_setpriority
+79     common  statfs                          sys_statfs
+80     common  fstatfs                         sys_fstatfs
+81     common  gettid                          sys_gettid
+82     common  semget                          sys_semget
+83     common  semop                           sys_semop
+84     common  semctl                          sys_semctl
+85     common  msgget                          sys_msgget
+86     common  msgsnd                          sys_msgsnd
+87     common  msgrcv                          sys_msgrcv
+88     common  msgctl                          sys_msgctl
+89     common  shmget                          sys_shmget
+90     common  shmat                           sys_shmat
+91     common  shmdt                           sys_shmdt
+92     common  shmctl                          sys_shmctl
+93     common  syslog                          sys_syslog
+94     common  setitimer                       sys_setitimer
+95     common  getitimer                       sys_getitimer
+# 1120 was old_stat
+# 1121 was old_lstat
+# 1122 was old_fstat
+99     common  vhangup                         sys_vhangup
+100    common  lchown                          sys_lchown
+101    common  remap_file_pages                sys_remap_file_pages
+102    common  wait4                           sys_wait4
+103    common  sysinfo                         sys_sysinfo
+104    common  clone                           sys_clone
+105    common  setdomainname                   sys_setdomainname
+106    common  uname                           sys_newuname
+107    common  adjtimex                        sys_adjtimex
+# 1132 was create_module
+109    common  init_module                     sys_init_module
+110    common  delete_module                   sys_delete_module
+# 1135 was get_kernel_syms
+# 1136 was query_module
+113    common  quotactl                        sys_quotactl
+114    common  bdflush                         sys_bdflush
+115    common  sysfs                           sys_sysfs
+116    common  personality                     sys_personality
+117    common  afs_syscall                     sys_ni_syscall
+118    common  setfsuid                        sys_setfsuid
+119    common  setfsgid                        sys_setfsgid
+120    common  getdents                        sys_getdents
+121    common  flock                           sys_flock
+122    common  readv                           sys_readv
+123    common  writev                          sys_writev
+124    common  pread64                         sys_pread64
+125    common  pwrite64                        sys_pwrite64
+126    common  _sysctl                         sys_sysctl
+127    common  mmap                            sys_mmap
+128    common  munmap                          sys_munmap
+129    common  mlock                           sys_mlock
+130    common  mlockall                        sys_mlockall
+131    common  mprotect                        sys_mprotect
+132    common  mremap                          ia64_mremap
+133    common  msync                           sys_msync
+134    common  munlock                         sys_munlock
+135    common  munlockall                      sys_munlockall
+136    common  sched_getparam                  sys_sched_getparam
+137    common  sched_setparam                  sys_sched_setparam
+138    common  sched_getscheduler              sys_sched_getscheduler
+139    common  sched_setscheduler              sys_sched_setscheduler
+140    common  sched_yield                     sys_sched_yield
+141    common  sched_get_priority_max          sys_sched_get_priority_max
+142    common  sched_get_priority_min          sys_sched_get_priority_min
+143    common  sched_rr_get_interval           sys_sched_rr_get_interval
+144    common  nanosleep                       sys_nanosleep
+145    common  nfsservctl                      sys_ni_syscall
+146    common  prctl                           sys_prctl
+147    common  old_getpagesize                 sys_getpagesize
+148    common  mmap2                           sys_mmap2
+149    common  pciconfig_read                  sys_pciconfig_read
+150    common  pciconfig_write                 sys_pciconfig_write
+151    common  perfmonctl                      sys_perfmonctl
+152    common  sigaltstack                     sys_sigaltstack
+153    common  rt_sigaction                    sys_rt_sigaction
+154    common  rt_sigpending                   sys_rt_sigpending
+155    common  rt_sigprocmask                  sys_rt_sigprocmask
+156    common  rt_sigqueueinfo                 sys_rt_sigqueueinfo
+157    common  rt_sigreturn                    sys_rt_sigreturn
+158    common  rt_sigsuspend                   sys_rt_sigsuspend
+159    common  rt_sigtimedwait                 sys_rt_sigtimedwait
+160    common  getcwd                          sys_getcwd
+161    common  capget                          sys_capget
+162    common  capset                          sys_capset
+163    common  sendfile                        sys_sendfile64
+164    common  getpmsg                         sys_ni_syscall
+165    common  putpmsg                         sys_ni_syscall
+166    common  socket                          sys_socket
+167    common  bind                            sys_bind
+168    common  connect                         sys_connect
+169    common  listen                          sys_listen
+170    common  accept                          sys_accept
+171    common  getsockname                     sys_getsockname
+172    common  getpeername                     sys_getpeername
+173    common  socketpair                      sys_socketpair
+174    common  send                            sys_send
+175    common  sendto                          sys_sendto
+176    common  recv                            sys_recv
+177    common  recvfrom                        sys_recvfrom
+178    common  shutdown                        sys_shutdown
+179    common  setsockopt                      sys_setsockopt
+180    common  getsockopt                      sys_getsockopt
+181    common  sendmsg                         sys_sendmsg
+182    common  recvmsg                         sys_recvmsg
+183    common  pivot_root                      sys_pivot_root
+184    common  mincore                         sys_mincore
+185    common  madvise                         sys_madvise
+186    common  stat                            sys_newstat
+187    common  lstat                           sys_newlstat
+188    common  fstat                           sys_newfstat
+189    common  clone2                          sys_clone2
+190    common  getdents64                      sys_getdents64
+191    common  getunwind                       sys_getunwind
+192    common  readahead                       sys_readahead
+193    common  setxattr                        sys_setxattr
+194    common  lsetxattr                       sys_lsetxattr
+195    common  fsetxattr                       sys_fsetxattr
+196    common  getxattr                        sys_getxattr
+197    common  lgetxattr                       sys_lgetxattr
+198    common  fgetxattr                       sys_fgetxattr
+199    common  listxattr                       sys_listxattr
+200    common  llistxattr                      sys_llistxattr
+201    common  flistxattr                      sys_flistxattr
+202    common  removexattr                     sys_removexattr
+203    common  lremovexattr                    sys_lremovexattr
+204    common  fremovexattr                    sys_fremovexattr
+205    common  tkill                           sys_tkill
+206    common  futex                           sys_futex
+207    common  sched_setaffinity               sys_sched_setaffinity
+208    common  sched_getaffinity               sys_sched_getaffinity
+209    common  set_tid_address                 sys_set_tid_address
+210    common  fadvise64                       sys_fadvise64_64
+211    common  tgkill                          sys_tgkill
+212    common  exit_group                      sys_exit_group
+213    common  lookup_dcookie                  sys_lookup_dcookie
+214    common  io_setup                        sys_io_setup
+215    common  io_destroy                      sys_io_destroy
+216    common  io_getevents                    sys_io_getevents
+217    common  io_submit                       sys_io_submit
+218    common  io_cancel                       sys_io_cancel
+219    common  epoll_create                    sys_epoll_create
+220    common  epoll_ctl                       sys_epoll_ctl
+221    common  epoll_wait                      sys_epoll_wait
+222    common  restart_syscall                 sys_restart_syscall
+223    common  semtimedop                      sys_semtimedop
+224    common  timer_create                    sys_timer_create
+225    common  timer_settime                   sys_timer_settime
+226    common  timer_gettime                   sys_timer_gettime
+227    common  timer_getoverrun                sys_timer_getoverrun
+228    common  timer_delete                    sys_timer_delete
+229    common  clock_settime                   sys_clock_settime
+230    common  clock_gettime                   sys_clock_gettime
+231    common  clock_getres                    sys_clock_getres
+232    common  clock_nanosleep                 sys_clock_nanosleep
+233    common  fstatfs64                       sys_fstatfs64
+234    common  statfs64                        sys_statfs64
+235    common  mbind                           sys_mbind
+236    common  get_mempolicy                   sys_get_mempolicy
+237    common  set_mempolicy                   sys_set_mempolicy
+238    common  mq_open                         sys_mq_open
+239    common  mq_unlink                       sys_mq_unlink
+240    common  mq_timedsend                    sys_mq_timedsend
+241    common  mq_timedreceive                 sys_mq_timedreceive
+242    common  mq_notify                       sys_mq_notify
+243    common  mq_getsetattr                   sys_mq_getsetattr
+244    common  kexec_load                      sys_kexec_load
+245    common  vserver                         sys_ni_syscall
+246    common  waitid                          sys_waitid
+247    common  add_key                         sys_add_key
+248    common  request_key                     sys_request_key
+249    common  keyctl                          sys_keyctl
+250    common  ioprio_set                      sys_ioprio_set
+251    common  ioprio_get                      sys_ioprio_get
+252    common  move_pages                      sys_move_pages
+253    common  inotify_init                    sys_inotify_init
+254    common  inotify_add_watch               sys_inotify_add_watch
+255    common  inotify_rm_watch                sys_inotify_rm_watch
+256    common  migrate_pages                   sys_migrate_pages
+257    common  openat                          sys_openat
+258    common  mkdirat                         sys_mkdirat
+259    common  mknodat                         sys_mknodat
+260    common  fchownat                        sys_fchownat
+261    common  futimesat                       sys_futimesat
+262    common  newfstatat                      sys_newfstatat
+263    common  unlinkat                        sys_unlinkat
+264    common  renameat                        sys_renameat
+265    common  linkat                          sys_linkat
+266    common  symlinkat                       sys_symlinkat
+267    common  readlinkat                      sys_readlinkat
+268    common  fchmodat                        sys_fchmodat
+269    common  faccessat                       sys_faccessat
+270    common  pselect6                        sys_pselect6
+271    common  ppoll                           sys_ppoll
+272    common  unshare                         sys_unshare
+273    common  splice                          sys_splice
+274    common  set_robust_list                 sys_set_robust_list
+275    common  get_robust_list                 sys_get_robust_list
+276    common  sync_file_range                 sys_sync_file_range
+277    common  tee                             sys_tee
+278    common  vmsplice                        sys_vmsplice
+279    common  fallocate                       sys_fallocate
+280    common  getcpu                          sys_getcpu
+281    common  epoll_pwait                     sys_epoll_pwait
+282    common  utimensat                       sys_utimensat
+283    common  signalfd                        sys_signalfd
+284    common  timerfd                         sys_ni_syscall
+285    common  eventfd                         sys_eventfd
+286    common  timerfd_create                  sys_timerfd_create
+287    common  timerfd_settime                 sys_timerfd_settime
+288    common  timerfd_gettime                 sys_timerfd_gettime
+289    common  signalfd4                       sys_signalfd4
+290    common  eventfd2                        sys_eventfd2
+291    common  epoll_create1                   sys_epoll_create1
+292    common  dup3                            sys_dup3
+293    common  pipe2                           sys_pipe2
+294    common  inotify_init1                   sys_inotify_init1
+295    common  preadv                          sys_preadv
+296    common  pwritev                         sys_pwritev
+297    common  rt_tgsigqueueinfo               sys_rt_tgsigqueueinfo
+298    common  recvmmsg                        sys_recvmmsg
+299    common  fanotify_init                   sys_fanotify_init
+300    common  fanotify_mark                   sys_fanotify_mark
+301    common  prlimit64                       sys_prlimit64
+302    common  name_to_handle_at               sys_name_to_handle_at
+303    common  open_by_handle_at               sys_open_by_handle_at
+304    common  clock_adjtime                   sys_clock_adjtime
+305    common  syncfs                          sys_syncfs
+306    common  setns                           sys_setns
+307    common  sendmmsg                        sys_sendmmsg
+308    common  process_vm_readv                sys_process_vm_readv
+309    common  process_vm_writev               sys_process_vm_writev
+310    common  accept4                         sys_accept4
+311    common  finit_module                    sys_finit_module
+312    common  sched_setattr                   sys_sched_setattr
+313    common  sched_getattr                   sys_sched_getattr
+314    common  renameat2                       sys_renameat2
+315    common  getrandom                       sys_getrandom
+316    common  memfd_create                    sys_memfd_create
+317    common  bpf                             sys_bpf
+318    common  execveat                        sys_execveat
+319    common  userfaultfd                     sys_userfaultfd
+320    common  membarrier                      sys_membarrier
+321    common  kcmp                            sys_kcmp
+322    common  mlock2                          sys_mlock2
+323    common  copy_file_range                 sys_copy_file_range
+324    common  preadv2                         sys_preadv2
+325    common  pwritev2                        sys_pwritev2
diff --git a/arch/ia64/kernel/syscalls/syscallhdr.sh b/arch/ia64/kernel/syscalls/syscallhdr.sh
new file mode 100644 (file)
index 0000000..0c2d2c7
--- /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="$5"
+
+fileguard=_UAPI_ASM_IA64_`basename "$out" | sed \
+       -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
+       -e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g'`
+grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
+       printf "#ifndef %s\n" "${fileguard}"
+       printf "#define %s\n" "${fileguard}"
+       printf "\n"
+
+       nxt=0
+       while read nr abi name entry ; do
+               if [ -z "$offset" ]; then
+                       printf "#define __NR_%s%s\t%s\n" \
+                               "${prefix}" "${name}" "${nr}"
+               else
+                       printf "#define __NR_%s%s\t(%s + %s)\n" \
+                               "${prefix}" "${name}" "${offset}" "${nr}"
+               fi
+               nxt=$((nr+1))
+       done
+
+       printf "\n"
+       printf "#ifdef __KERNEL__\n"
+       printf "#define __NR_syscalls\t%s\n" "${nxt}"
+       printf "#endif\n"
+       printf "\n"
+       printf "#endif /* %s */" "${fileguard}"
+) > "$out"
diff --git a/arch/ia64/kernel/syscalls/syscalltbl.sh b/arch/ia64/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"