parisc: add system call table generation support

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.
	- Compat entry name, if required.

syscallhdr.sh and syscalltbl.sh will generate uapi header
unistd_32/64.h and syscall_table_32/64/c32.h files respect-
ively. Both .sh files will parse the content syscall.tbl
to generate the header and table files. unistd_32/64.h will
be included by uapi/asm/unistd.h and syscall_table_32/64/-
c32.h is included by kernel/syscall.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>
Acked-by: Helge Deller <deller@gmx.de>
Signed-off-by: Helge Deller <deller@gmx.de>
This commit is contained in:
Firoz Khan 2018-09-09 07:22:50 +05:30 committed by Helge Deller
parent 28ff62a4b4
commit 85e69701f5
4 changed files with 496 additions and 0 deletions

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# 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_abis_unistd_32 := common,32
$(uapi)/unistd_32.h: $(syscall) $(syshdr)
$(call if_changed,syshdr)
syshdr_abis_unistd_64 := common,64
$(uapi)/unistd_64.h: $(syscall) $(syshdr)
$(call if_changed,syshdr)
systbl_abis_syscall_table_32 := common,32
$(kapi)/syscall_table_32.h: $(syscall) $(systbl)
$(call if_changed,systbl)
systbl_abis_syscall_table_64 := common,64
$(kapi)/syscall_table_64.h: $(syscall) $(systbl)
$(call if_changed,systbl)
systbl_abis_syscall_table_c32 := common,32
systbl_abi_syscall_table_c32 := c32
$(kapi)/syscall_table_c32.h: $(syscall) $(systbl)
$(call if_changed,systbl)
uapisyshdr-y += unistd_32.h unistd_64.h
kapisyshdr-y += syscall_table_32.h \
syscall_table_64.h \
syscall_table_c32.h
targets += $(uapisyshdr-y) $(kapisyshdr-y)
PHONY += all
all: $(addprefix $(uapi)/,$(uapisyshdr-y))
all: $(addprefix $(kapi)/,$(kapisyshdr-y))
@:

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# SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
#
# system call numbers and entry vectors for parisc
#
# The format is:
# <number> <abi> <name> <entry point> <compat entry point>
#
# The <abi> can be common, 64, or 32 for this file.
#
0 common restart_syscall sys_restart_syscall
1 common exit sys_exit
2 common fork sys_fork_wrapper
3 common read sys_read
4 common write sys_write
5 common open sys_open compat_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 compat_sys_execve
12 common chdir sys_chdir
13 common time sys_time compat_sys_time
14 common mknod sys_mknod
15 common chmod sys_chmod
16 common lchown sys_lchown
17 common socket sys_socket
18 common stat sys_newstat compat_sys_newstat
19 common lseek sys_lseek compat_sys_lseek
20 common getpid sys_getpid
21 common mount sys_mount compat_sys_mount
22 common bind sys_bind
23 common setuid sys_setuid
24 common getuid sys_getuid
25 common stime sys_stime compat_sys_stime
26 common ptrace sys_ptrace compat_sys_ptrace
27 common alarm sys_alarm
28 common fstat sys_newfstat compat_sys_newfstat
29 common pause sys_pause
30 common utime sys_utime compat_sys_utime
31 common connect sys_connect
32 common listen sys_listen
33 common access sys_access
34 common nice sys_nice
35 common accept sys_accept
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 compat_sys_times
44 common getsockname sys_getsockname
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 getpeername sys_getpeername
54 common ioctl sys_ioctl compat_sys_ioctl
55 common fcntl sys_fcntl compat_sys_fcntl
56 common socketpair sys_socketpair
57 common setpgid sys_setpgid
58 common send sys_send
59 common uname sys_newuname
60 common umask sys_umask
61 common chroot sys_chroot
62 common ustat sys_ustat compat_sys_ustat
63 common dup2 sys_dup2
64 common getppid sys_getppid
65 common getpgrp sys_getpgrp
66 common setsid sys_setsid
67 common pivot_root sys_pivot_root
68 common sgetmask sys_sgetmask sys32_unimplemented
69 common ssetmask sys_ssetmask sys32_unimplemented
70 common setreuid sys_setreuid
71 common setregid sys_setregid
72 common mincore sys_mincore
73 common sigpending sys_sigpending compat_sys_sigpending
74 common sethostname sys_sethostname
75 common setrlimit sys_setrlimit compat_sys_setrlimit
76 common getrlimit sys_getrlimit compat_sys_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 common getgroups sys_getgroups
81 common setgroups sys_setgroups
82 common sendto sys_sendto
83 common symlink sys_symlink
84 common lstat sys_newlstat compat_sys_newlstat
85 common readlink sys_readlink
86 common uselib sys_ni_syscall
87 common swapon sys_swapon
88 common reboot sys_reboot
89 common mmap2 sys_mmap2
90 common mmap sys_mmap
91 common munmap sys_munmap
92 common truncate sys_truncate compat_sys_truncate
93 common ftruncate sys_ftruncate compat_sys_ftruncate
94 common fchmod sys_fchmod
95 common fchown sys_fchown
96 common getpriority sys_getpriority
97 common setpriority sys_setpriority
98 common recv sys_recv
99 common statfs sys_statfs compat_sys_statfs
100 common fstatfs sys_fstatfs compat_sys_fstatfs
101 common stat64 sys_stat64
# 102 was socketcall
103 common syslog sys_syslog
104 common setitimer sys_setitimer compat_sys_setitimer
105 common getitimer sys_getitimer compat_sys_getitimer
106 common capget sys_capget
107 common capset sys_capset
108 32 pread64 parisc_pread64
108 64 pread64 sys_pread64
109 32 pwrite64 parisc_pwrite64
109 64 pwrite64 sys_pwrite64
110 common getcwd sys_getcwd
111 common vhangup sys_vhangup
112 common fstat64 sys_fstat64
113 common vfork sys_vfork_wrapper
114 common wait4 sys_wait4 compat_sys_wait4
115 common swapoff sys_swapoff
116 common sysinfo sys_sysinfo compat_sys_sysinfo
117 common shutdown sys_shutdown
118 common fsync sys_fsync
119 common madvise sys_madvise
120 common clone sys_clone_wrapper
121 common setdomainname sys_setdomainname
122 common sendfile sys_sendfile compat_sys_sendfile
123 common recvfrom sys_recvfrom
124 common adjtimex sys_adjtimex compat_sys_adjtimex
125 common mprotect sys_mprotect
126 common sigprocmask sys_sigprocmask compat_sys_sigprocmask
# 127 was create_module
128 common init_module sys_init_module
129 common delete_module sys_delete_module
# 130 was get_kernel_syms
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 32 personality parisc_personality
136 64 personality sys_personality
# 137 was afs_syscall
138 common setfsuid sys_setfsuid
139 common setfsgid sys_setfsgid
140 common _llseek sys_llseek
141 common getdents sys_getdents compat_sys_getdents
142 common _newselect sys_select compat_sys_select
143 common flock sys_flock
144 common msync sys_msync
145 common readv sys_readv compat_sys_readv
146 common writev sys_writev compat_sys_writev
147 common getsid sys_getsid
148 common fdatasync sys_fdatasync
149 common _sysctl sys_sysctl compat_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 compat_sys_sched_rr_get_interval
162 common nanosleep sys_nanosleep compat_sys_nanosleep
163 common mremap sys_mremap
164 common setresuid sys_setresuid
165 common getresuid sys_getresuid
166 common sigaltstack sys_sigaltstack compat_sys_sigaltstack
# 167 was query_module
168 common poll sys_poll
# 169 was nfsservctl
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 compat_sys_rt_sigaction
175 common rt_sigprocmask sys_rt_sigprocmask compat_sys_rt_sigprocmask
176 common rt_sigpending sys_rt_sigpending compat_sys_rt_sigpending
177 common rt_sigtimedwait sys_rt_sigtimedwait compat_sys_rt_sigtimedwait
178 common rt_sigqueueinfo sys_rt_sigqueueinfo compat_sys_rt_sigqueueinfo
179 common rt_sigsuspend sys_rt_sigsuspend compat_sys_rt_sigsuspend
180 common chown sys_chown
181 common setsockopt sys_setsockopt compat_sys_setsockopt
182 common getsockopt sys_getsockopt compat_sys_getsockopt
183 common sendmsg sys_sendmsg compat_sys_sendmsg
184 common recvmsg sys_recvmsg compat_sys_recvmsg
185 common semop sys_semop
186 common semget sys_semget
187 common semctl sys_semctl compat_sys_semctl
188 common msgsnd sys_msgsnd compat_sys_msgsnd
189 common msgrcv sys_msgrcv compat_sys_msgrcv
190 common msgget sys_msgget
191 common msgctl sys_msgctl compat_sys_msgctl
192 common shmat sys_shmat compat_sys_shmat
193 common shmdt sys_shmdt
194 common shmget sys_shmget
195 common shmctl sys_shmctl compat_sys_shmctl
# 196 was getpmsg
# 197 was putpmsg
198 common lstat64 sys_lstat64
199 32 truncate64 parisc_truncate64
199 64 truncate64 sys_truncate64
200 32 ftruncate64 parisc_ftruncate64
200 64 ftruncate64 sys_ftruncate64
201 common getdents64 sys_getdents64
202 common fcntl64 sys_fcntl64 compat_sys_fcntl64
# 203 was attrctl
# 204 was acl_get
# 205 was acl_set
206 common gettid sys_gettid
207 32 readahead parisc_readahead
207 64 readahead sys_readahead
208 common tkill sys_tkill
209 common sendfile64 sys_sendfile64 compat_sys_sendfile64
210 common futex sys_futex compat_sys_futex
211 common sched_setaffinity sys_sched_setaffinity compat_sys_sched_setaffinity
212 common sched_getaffinity sys_sched_getaffinity compat_sys_sched_getaffinity
# 213 was set_thread_area
# 214 was get_thread_area
215 common io_setup sys_io_setup compat_sys_io_setup
216 common io_destroy sys_io_destroy
217 common io_getevents sys_io_getevents compat_sys_io_getevents
218 common io_submit sys_io_submit compat_sys_io_submit
219 common io_cancel sys_io_cancel
# 220 was alloc_hugepages
# 221 was free_hugepages
222 common exit_group sys_exit_group
223 common lookup_dcookie sys_lookup_dcookie compat_sys_lookup_dcookie
224 common epoll_create sys_epoll_create
225 common epoll_ctl sys_epoll_ctl
226 common epoll_wait sys_epoll_wait
227 common remap_file_pages sys_remap_file_pages
228 common semtimedop sys_semtimedop compat_sys_semtimedop
229 common mq_open sys_mq_open compat_sys_mq_open
230 common mq_unlink sys_mq_unlink
231 common mq_timedsend sys_mq_timedsend compat_sys_mq_timedsend
232 common mq_timedreceive sys_mq_timedreceive compat_sys_mq_timedreceive
233 common mq_notify sys_mq_notify compat_sys_mq_notify
234 common mq_getsetattr sys_mq_getsetattr compat_sys_mq_getsetattr
235 common waitid sys_waitid compat_sys_waitid
236 32 fadvise64_64 parisc_fadvise64_64
236 64 fadvise64_64 sys_fadvise64_64
237 common set_tid_address sys_set_tid_address
238 common setxattr sys_setxattr
239 common lsetxattr sys_lsetxattr
240 common fsetxattr sys_fsetxattr
241 common getxattr sys_getxattr
242 common lgetxattr sys_lgetxattr
243 common fgetxattr sys_fgetxattr
244 common listxattr sys_listxattr
245 common llistxattr sys_llistxattr
246 common flistxattr sys_flistxattr
247 common removexattr sys_removexattr
248 common lremovexattr sys_lremovexattr
249 common fremovexattr sys_fremovexattr
250 common timer_create sys_timer_create compat_sys_timer_create
251 common timer_settime sys_timer_settime compat_sys_timer_settime
252 common timer_gettime sys_timer_gettime compat_sys_timer_gettime
253 common timer_getoverrun sys_timer_getoverrun
254 common timer_delete sys_timer_delete
255 common clock_settime sys_clock_settime compat_sys_clock_settime
256 common clock_gettime sys_clock_gettime compat_sys_clock_gettime
257 common clock_getres sys_clock_getres compat_sys_clock_getres
258 common clock_nanosleep sys_clock_nanosleep compat_sys_clock_nanosleep
259 common tgkill sys_tgkill
260 common mbind sys_mbind compat_sys_mbind
261 common get_mempolicy sys_get_mempolicy compat_sys_get_mempolicy
262 common set_mempolicy sys_set_mempolicy compat_sys_set_mempolicy
# 263 was vserver
264 common add_key sys_add_key
265 common request_key sys_request_key
266 common keyctl sys_keyctl compat_sys_keyctl
267 common ioprio_set sys_ioprio_set
268 common ioprio_get sys_ioprio_get
269 common inotify_init sys_inotify_init
270 common inotify_add_watch sys_inotify_add_watch
271 common inotify_rm_watch sys_inotify_rm_watch
272 common migrate_pages sys_migrate_pages
273 common pselect6 sys_pselect6 compat_sys_pselect6
274 common ppoll sys_ppoll compat_sys_ppoll
275 common openat sys_openat compat_sys_openat
276 common mkdirat sys_mkdirat
277 common mknodat sys_mknodat
278 common fchownat sys_fchownat
279 common futimesat sys_futimesat compat_sys_futimesat
280 common fstatat64 sys_fstatat64
281 common unlinkat sys_unlinkat
282 common renameat sys_renameat
283 common linkat sys_linkat
284 common symlinkat sys_symlinkat
285 common readlinkat sys_readlinkat
286 common fchmodat sys_fchmodat
287 common faccessat sys_faccessat
288 common unshare sys_unshare
289 common set_robust_list sys_set_robust_list compat_sys_set_robust_list
290 common get_robust_list sys_get_robust_list compat_sys_get_robust_list
291 common splice sys_splice
292 32 sync_file_range parisc_sync_file_range
292 64 sync_file_range sys_sync_file_range
293 common tee sys_tee
294 common vmsplice sys_vmsplice compat_sys_vmsplice
295 common move_pages sys_move_pages compat_sys_move_pages
296 common getcpu sys_getcpu
297 common epoll_pwait sys_epoll_pwait compat_sys_epoll_pwait
298 common statfs64 sys_statfs64 compat_sys_statfs64
299 common fstatfs64 sys_fstatfs64 compat_sys_fstatfs64
300 common kexec_load sys_kexec_load compat_sys_kexec_load
301 common utimensat sys_utimensat compat_sys_utimensat
302 common signalfd sys_signalfd compat_sys_signalfd
# 303 was timerfd
304 common eventfd sys_eventfd
305 32 fallocate parisc_fallocate
305 64 fallocate sys_fallocate
306 common timerfd_create sys_timerfd_create
307 common timerfd_settime sys_timerfd_settime compat_sys_timerfd_settime
308 common timerfd_gettime sys_timerfd_gettime compat_sys_timerfd_gettime
309 common signalfd4 sys_signalfd4 compat_sys_signalfd4
310 common eventfd2 sys_eventfd2
311 common epoll_create1 sys_epoll_create1
312 common dup3 sys_dup3
313 common pipe2 sys_pipe2
314 common inotify_init1 sys_inotify_init1
315 common preadv sys_preadv compat_sys_preadv
316 common pwritev sys_pwritev compat_sys_pwritev
317 common rt_tgsigqueueinfo sys_rt_tgsigqueueinfo compat_sys_rt_tgsigqueueinfo
318 common perf_event_open sys_perf_event_open
319 common recvmmsg sys_recvmmsg compat_sys_recvmmsg
320 common accept4 sys_accept4
321 common prlimit64 sys_prlimit64
322 common fanotify_init sys_fanotify_init
323 common fanotify_mark sys_fanotify_mark sys32_fanotify_mark
324 common clock_adjtime sys_clock_adjtime compat_sys_clock_adjtime
325 common name_to_handle_at sys_name_to_handle_at
326 common open_by_handle_at sys_open_by_handle_at compat_sys_open_by_handle_at
327 common syncfs sys_syncfs
328 common setns sys_setns
329 common sendmmsg sys_sendmmsg compat_sys_sendmmsg
330 common process_vm_readv sys_process_vm_readv compat_sys_process_vm_readv
331 common process_vm_writev sys_process_vm_writev compat_sys_process_vm_writev
332 common kcmp sys_kcmp
333 common finit_module sys_finit_module
334 common sched_setattr sys_sched_setattr
335 common sched_getattr sys_sched_getattr
336 common utimes sys_utimes compat_sys_utimes
337 common renameat2 sys_renameat2
338 common seccomp sys_seccomp
339 common getrandom sys_getrandom
340 common memfd_create sys_memfd_create
341 common bpf sys_bpf
342 common execveat sys_execveat compat_sys_execveat
343 common membarrier sys_membarrier
344 common userfaultfd sys_userfaultfd
345 common mlock2 sys_mlock2
346 common copy_file_range sys_copy_file_range
347 common preadv2 sys_preadv2 compat_sys_preadv2
348 common pwritev2 sys_pwritev2 compat_sys_pwritev2
349 common statx sys_statx
350 common io_pgetevents sys_io_pgetevents compat_sys_io_pgetevents

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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
in="$1"
out="$2"
my_abis=`echo "($3)" | tr ',' '|'`
prefix="$4"
offset="$5"
fileguard=_UAPI_ASM_PARISC_`basename "$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 compat ; 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"

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#!/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 compat ; do
if [ "$my_abi" = "c32" ] && [ ! -z "$compat" ]; then
emit $((nxt+offset)) $((nr+offset)) $compat
else
emit $((nxt+offset)) $((nr+offset)) $entry
fi
nxt=$((nr+1))
done
) > "$out"