* [PATCH RFC v3 1/8] syscalls: Make --abis parsing more robust
2026-08-07 19:34 [PATCH RFC v3 0/8] syscalls: Add a shared table for all archs André Almeida
@ 2026-08-07 19:34 ` André Almeida
2026-08-07 19:34 ` [PATCH RFC v3 2/8] syscalls: Create unified partial table for all archs André Almeida
` (7 subsequent siblings)
8 siblings, 0 replies; 17+ messages in thread
From: André Almeida @ 2026-08-07 19:34 UTC (permalink / raw)
To: Thomas Gleixner, Nathan Chancellor, Masami Hiramatsu, Arnd Bergmanon
Cc: linux-kernel, linux-kbuild, kernel-dev, André Almeida
Some archs Makefile have the something like this as the rule for making the
syscall files:
cmd_systbl = $(CONFIG_SHELL) $(systbl) --abis common,$* $< $@
The $* symbol is evaluated to the variable found at $(uapi)/unistd-%.h,
where % is 32 or 64, resulting in e.g. `--abis common,32`. Sometimes the
rule for the file won't have a %, resulting in a trailing comma e.g.
`--abis common,`.
Currently this input is transformed into (common|). This is problematic
because grep will then match any ABI because of the trailing `|`. Make the
syscalls scripts more robust by removing any trailing comma.
Signed-off-by: André Almeida <andrealmeid@igalia.com>
---
scripts/syscallhdr.sh | 2 +-
scripts/syscalltbl.sh | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/scripts/syscallhdr.sh b/scripts/syscallhdr.sh
index 22e34cd46b9b..bad1ab606a0f 100755
--- a/scripts/syscallhdr.sh
+++ b/scripts/syscallhdr.sh
@@ -39,7 +39,7 @@ while [ $# -gt 0 ]
do
case $1 in
--abis)
- abis=$(echo "($2)" | tr ',' '|')
+ abis="($(echo "${2%,}" | tr ',' '|'))"
shift 2;;
--emit-nr)
emit_nr=1
diff --git a/scripts/syscalltbl.sh b/scripts/syscalltbl.sh
index 6a903b87a7c2..c4b1f85c2dd6 100755
--- a/scripts/syscalltbl.sh
+++ b/scripts/syscalltbl.sh
@@ -33,7 +33,7 @@ while [ $# -gt 0 ]
do
case $1 in
--abis)
- abis=$(echo "($2)" | tr ',' '|')
+ abis="($(echo "${2%,}" | tr ',' '|'))"
shift 2;;
-*)
echo "$1: unknown option" >&2
--
2.55.0
^ permalink raw reply [flat|nested] 17+ messages in thread* [PATCH RFC v3 2/8] syscalls: Create unified partial table for all archs
2026-08-07 19:34 [PATCH RFC v3 0/8] syscalls: Add a shared table for all archs André Almeida
2026-08-07 19:34 ` [PATCH RFC v3 1/8] syscalls: Make --abis parsing more robust André Almeida
@ 2026-08-07 19:34 ` André Almeida
2026-08-07 20:40 ` Arnd Bergmann
2026-08-07 19:34 ` [PATCH RFC v3 3/8] scripts/syscall.tbl: Use the common table André Almeida
` (6 subsequent siblings)
8 siblings, 1 reply; 17+ messages in thread
From: André Almeida @ 2026-08-07 19:34 UTC (permalink / raw)
To: Thomas Gleixner, Nathan Chancellor, Masami Hiramatsu, Arnd Bergmanon
Cc: linux-kernel, linux-kbuild, kernel-dev, André Almeida
To take advantage of the subset of syscall numbers that are guaranteed to
be shared, create a new table and adapt generation scripts to use it. In
that way, every new syscall can be added to a single file.
Create special ABIs in order to make the table work for different archs:
- `memfd_secret` for archs that implements it
- `cln3` for archs that use the common clone3 entry
- `__cln3` for archs that use their own special entry point
Create flags for syscall scripts to use the common table.
Some archs only care about the native entry point and have no compat, so
create a option to never generate __SYSCALL_WITH_COMPAT() and always
generate __SYSCALL().
Signed-off-by: André Almeida <andrealmeid@igalia.com>
---
scripts/syscall_common.tbl | 83 ++++++++++++++++++++++++++++++++++++++++++++++
scripts/syscallhdr.sh | 60 +++++++++++++++++++++++++--------
scripts/syscalltbl.sh | 36 ++++++++++++++++----
3 files changed, 158 insertions(+), 21 deletions(-)
diff --git a/scripts/syscall_common.tbl b/scripts/syscall_common.tbl
new file mode 100644
index 000000000000..decbb0c23fe3
--- /dev/null
+++ b/scripts/syscall_common.tbl
@@ -0,0 +1,83 @@
+# SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
+#
+# syscall numbers shared by all architectures
+#
+# The format is:
+# <number> <abi> <name> <entry point> [<compat entry point> [noreturn]]
+#
+# The abi can be "32", "cln3", "__cln3" and "memfd_secret"
+#
+# cln3 stands for the common clone3 entry, used by most archs. Some archs have
+# their special entry and should use "__cln3".
+#
+# "memfd_secret" is not implemented by every architecture
+
+403 32 clock_gettime64 sys_clock_gettime
+404 32 clock_settime64 sys_clock_settime
+405 32 clock_adjtime64 sys_clock_adjtime
+406 32 clock_getres_time64 sys_clock_getres
+407 32 clock_nanosleep_time64 sys_clock_nanosleep
+408 32 timer_gettime64 sys_timer_gettime
+409 32 timer_settime64 sys_timer_settime
+410 32 timerfd_gettime64 sys_timerfd_gettime
+411 32 timerfd_settime64 sys_timerfd_settime
+412 32 utimensat_time64 sys_utimensat
+413 32 pselect6_time64 sys_pselect6 compat_sys_pselect6_time64
+414 32 ppoll_time64 sys_ppoll compat_sys_ppoll_time64
+416 32 io_pgetevents_time64 sys_io_pgetevents compat_sys_io_pgetevents_time64
+417 32 recvmmsg_time64 sys_recvmmsg compat_sys_recvmmsg_time64
+418 32 mq_timedsend_time64 sys_mq_timedsend
+419 32 mq_timedreceive_time64 sys_mq_timedreceive
+420 32 semtimedop_time64 sys_semtimedop
+421 32 rt_sigtimedwait_time64 sys_rt_sigtimedwait compat_sys_rt_sigtimedwait_time64
+422 32 futex_time64 sys_futex
+423 32 sched_rr_get_interval_time64 sys_sched_rr_get_interval
+424 common pidfd_send_signal sys_pidfd_send_signal
+425 common io_uring_setup sys_io_uring_setup
+426 common io_uring_enter sys_io_uring_enter
+427 common io_uring_register sys_io_uring_register
+428 common open_tree sys_open_tree
+429 common move_mount sys_move_mount
+430 common fsopen sys_fsopen
+431 common fsconfig sys_fsconfig
+432 common fsmount sys_fsmount
+433 common fspick sys_fspick
+434 common pidfd_open sys_pidfd_open
+435 cln3 clone3 sys_clone3
+435 __cln3 clone3 __sys_clone3
+436 common close_range sys_close_range
+437 common openat2 sys_openat2
+438 common pidfd_getfd sys_pidfd_getfd
+439 common faccessat2 sys_faccessat2
+440 common process_madvise sys_process_madvise
+441 common epoll_pwait2 sys_epoll_pwait2 compat_sys_epoll_pwait2
+442 common mount_setattr sys_mount_setattr
+443 common quotactl_fd sys_quotactl_fd
+444 common landlock_create_ruleset sys_landlock_create_ruleset
+445 common landlock_add_rule sys_landlock_add_rule
+446 common landlock_restrict_self sys_landlock_restrict_self
+447 memfd_secret memfd_secret sys_memfd_secret
+448 common process_mrelease sys_process_mrelease
+449 common futex_waitv sys_futex_waitv
+450 common set_mempolicy_home_node sys_set_mempolicy_home_node
+451 common cachestat sys_cachestat
+452 common fchmodat2 sys_fchmodat2
+453 common map_shadow_stack sys_map_shadow_stack
+454 common futex_wake sys_futex_wake
+455 common futex_wait sys_futex_wait
+456 common futex_requeue sys_futex_requeue
+457 common statmount sys_statmount
+458 common listmount sys_listmount
+459 common lsm_get_self_attr sys_lsm_get_self_attr
+460 common lsm_set_self_attr sys_lsm_set_self_attr
+461 common lsm_list_modules sys_lsm_list_modules
+462 common mseal sys_mseal
+463 common setxattrat sys_setxattrat
+464 common getxattrat sys_getxattrat
+465 common listxattrat sys_listxattrat
+466 common removexattrat sys_removexattrat
+467 common open_tree_attr sys_open_tree_attr
+468 common file_getattr sys_file_getattr
+469 common file_setattr sys_file_setattr
+470 common listns sys_listns
+471 common rseq_slice_yield sys_rseq_slice_yield
diff --git a/scripts/syscallhdr.sh b/scripts/syscallhdr.sh
index bad1ab606a0f..e33cba98a5e9 100755
--- a/scripts/syscallhdr.sh
+++ b/scripts/syscallhdr.sh
@@ -16,7 +16,7 @@
set -e
usage() {
- echo >&2 "usage: $0 [--abis ABIS] [--emit-nr] [--offset OFFSET] [--prefix PREFIX] INFILE OUTFILE" >&2
+ echo >&2 "usage: $0 [--abis ABIS] [--emit-nr] [--offset OFFSET] [--prefix PREFIX] [--common-tbl] INFILE OUTFILE" >&2
echo >&2
echo >&2 " INFILE input syscall table"
echo >&2 " OUTFILE output header file"
@@ -26,6 +26,7 @@ usage() {
echo >&2 " --emit-nr Emit the macro of the number of syscalls (__NR_syscalls)"
echo >&2 " --offset OFFSET The offset of syscall numbers"
echo >&2 " --prefix PREFIX The prefix to the macro like __NR_<PREFIX><NAME>"
+ echo >&2 " --common-tbl PATH Use the common number table"
exit 1
}
@@ -34,6 +35,8 @@ abis=
emit_nr=
offset=
prefix=
+common_tbl=
+common_tbl_path=
while [ $# -gt 0 ]
do
@@ -50,6 +53,10 @@ do
--prefix)
prefix=$2
shift 2;;
+ --common-tbl)
+ common_tbl=1
+ common_tbl_path=$2
+ shift 2;;
-*)
echo "$1: unknown option" >&2
usage;;
@@ -69,13 +76,33 @@ guard=_UAPI_ASM_$(basename "$outfile" |
sed -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
-e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g')
-grep -E "^[0-9A-Fa-fXx]+[[:space:]]+$abis" "$infile" | {
+emit_start_guard() {
echo "#ifndef $guard"
echo "#define $guard"
echo
+}
+
+# emit_nr(prefix, nr)
+emit_nr() {
+ local nr=$1
+ local prefix=$2
+ echo
+ echo "#ifdef __KERNEL__"
+ echo "#define __NR_${prefix}syscalls $nr"
+ echo "#endif"
+}
+
+emit_end_guard() {
+ echo
+ echo "#endif /* $guard */"
+}
+
+max=0
+# gen_hdr(infile)
+gen_hdr() {
+ input=$1
- max=0
- while read nr abi name native compat ; do
+ while read nr abi name native compat; do
max=$nr
@@ -84,15 +111,20 @@ grep -E "^[0-9A-Fa-fXx]+[[:space:]]+$abis" "$infile" | {
fi
echo "#define __NR_$prefix$name $nr"
- done
- if [ -n "$emit_nr" ]; then
- echo
- echo "#ifdef __KERNEL__"
- echo "#define __NR_${prefix}syscalls $(($max + 1))"
- echo "#endif"
- fi
+ done < <(grep -E "^[0-9A-Fa-fXx]+[[:space:]]+$abis" "$input")
+}
- echo
- echo "#endif /* $guard */"
-} > "$outfile"
+emit_start_guard > $outfile
+
+gen_hdr $infile >> $outfile
+
+if [ -n "$common_tbl" ]; then
+ gen_hdr $common_tbl_path >> "$outfile"
+fi
+
+if [ -n "$emit_nr" ]; then
+ emit_nr $(($max + 1)) $prefix >> $outfile
+fi
+
+emit_end_guard >> $outfile
diff --git a/scripts/syscalltbl.sh b/scripts/syscalltbl.sh
index c4b1f85c2dd6..c0fd6af2d892 100755
--- a/scripts/syscalltbl.sh
+++ b/scripts/syscalltbl.sh
@@ -16,18 +16,23 @@
set -e
usage() {
- echo >&2 "usage: $0 [--abis ABIS] INFILE OUTFILE" >&2
+ echo >&2 "usage: $0 [--abis ABIS] [--common-tbl] [--no-compat] INFILE OUTFILE" >&2
echo >&2
echo >&2 " INFILE input syscall table"
echo >&2 " OUTFILE output header file"
echo >&2
echo >&2 "options:"
echo >&2 " --abis ABIS ABI(s) to handle (By default, all lines are handled)"
+ echo >&2 " --common-tbl PATH Use the common syscall number table"
+ echo >&2 " --no-compat Always generate the native entry"
exit 1
}
# default unless specified by options
abis=
+common_tbl=
+common_tbl_path=
+no_compat=
while [ $# -gt 0 ]
do
@@ -35,6 +40,13 @@ do
--abis)
abis="($(echo "${2%,}" | tr ',' '|'))"
shift 2;;
+ --common-tbl)
+ common_tbl=1
+ common_tbl_path=$2
+ shift 2;;
+ --no-compat)
+ no_compat=1
+ shift 1;;
-*)
echo "$1: unknown option" >&2
usage;;
@@ -52,12 +64,14 @@ outfile="$2"
nxt=0
-grep -E "^[0-9]+[[:space:]]+$abis" "$infile" | {
+# gen_tbl(infile)
+gen_tbl() {
+ input=$1
while read nr abi name native compat noreturn; do
if [ $nxt -gt $nr ]; then
- echo "error: $infile: syscall table is not sorted or duplicates the same syscall number" >&2
+ echo "error: $input: syscall table is not sorted or duplicates the same syscall number" >&2
exit 1
fi
@@ -66,13 +80,13 @@ grep -E "^[0-9]+[[:space:]]+$abis" "$infile" | {
nxt=$((nxt + 1))
done
- if [ "$compat" = "-" ]; then
+ if [ "$compat" = "-" ] || [ -n "$no_compat" ]; then
unset compat
fi
if [ -n "$noreturn" ]; then
if [ "$noreturn" != "noreturn" ]; then
- echo "error: $infile: invalid string \"$noreturn\" in 'noreturn' column"
+ echo "error: $input: invalid string \"$noreturn\" in 'noreturn' column"
exit 1
fi
if [ -n "$compat" ]; then
@@ -88,5 +102,13 @@ grep -E "^[0-9]+[[:space:]]+$abis" "$infile" | {
echo "__SYSCALL($nr, sys_ni_syscall)"
fi
nxt=$((nr + 1))
- done
-} > "$outfile"
+
+ done < <(grep -E "^[0-9]+[[:space:]]+$abis" "$input")
+
+}
+
+gen_tbl $infile > "$outfile"
+
+if [ -n "$common_tbl" ]; then
+ gen_tbl $common_tbl_path >> "$outfile"
+fi
--
2.55.0
^ permalink raw reply [flat|nested] 17+ messages in thread* Re: [PATCH RFC v3 2/8] syscalls: Create unified partial table for all archs
2026-08-07 19:34 ` [PATCH RFC v3 2/8] syscalls: Create unified partial table for all archs André Almeida
@ 2026-08-07 20:40 ` Arnd Bergmann
2026-08-10 13:19 ` André Almeida
0 siblings, 1 reply; 17+ messages in thread
From: Arnd Bergmann @ 2026-08-07 20:40 UTC (permalink / raw)
To: André Almeida, Thomas Gleixner, Nathan Chancellor, Masami Hiramatsu
Cc: linux-kernel, linux-kbuild, kernel-dev
On Fri, Aug 7, 2026, at 21:34, André Almeida wrote:
> To take advantage of the subset of syscall numbers that are guaranteed to
> be shared, create a new table and adapt generation scripts to use it. In
> that way, every new syscall can be added to a single file.
>
> Create special ABIs in order to make the table work for different archs:
>
> - `memfd_secret` for archs that implements it
This was already there, so it's not really a new addition. We could
also avoid this entirely and just rely on the stub implementation
from kernel/sys_ni.c for those architectures that don't need it.
They still get the macro definition, but it should be fine to define
that for everyone.
> - `cln3` for archs that use the common clone3 entry
> - `__cln3` for archs that use their own special entry point
I guess that's one way to do it. I would probably use the full
clone3/__clone3 name here for consistency.
> Some archs only care about the native entry point and have no compat, so
> create a option to never generate __SYSCALL_WITH_COMPAT() and always
> generate __SYSCALL().
I don't see the purpose of this and would prefer to not add that
extra option if the scripts works fine without it.
> usage() {
> - echo >&2 "usage: $0 [--abis ABIS] [--emit-nr] [--offset OFFSET]
> [--prefix PREFIX] INFILE OUTFILE" >&2
> + echo >&2 "usage: $0 [--abis ABIS] [--emit-nr] [--offset OFFSET]
> [--prefix PREFIX] [--common-tbl] INFILE OUTFILE" >&2
This needs to be changed to include the argument of common-tbl
> diff --git a/scripts/syscalltbl.sh b/scripts/syscalltbl.sh
> index c4b1f85c2dd6..c0fd6af2d892 100755
> --- a/scripts/syscalltbl.sh
> +++ b/scripts/syscalltbl.sh
> @@ -16,18 +16,23 @@
> set -e
>
> usage() {
> - echo >&2 "usage: $0 [--abis ABIS] INFILE OUTFILE" >&2
> + echo >&2 "usage: $0 [--abis ABIS] [--common-tbl] [--no-compat] INFILE
same here
Arnd
^ permalink raw reply [flat|nested] 17+ messages in thread* Re: [PATCH RFC v3 2/8] syscalls: Create unified partial table for all archs
2026-08-07 20:40 ` Arnd Bergmann
@ 2026-08-10 13:19 ` André Almeida
2026-08-10 14:22 ` Arnd Bergmann
0 siblings, 1 reply; 17+ messages in thread
From: André Almeida @ 2026-08-10 13:19 UTC (permalink / raw)
To: Arnd Bergmann
Cc: linux-kernel, Masami Hiramatsu, Nathan Chancellor,
Thomas Gleixner, linux-kbuild, kernel-dev
Em 07/08/2026 17:40, Arnd Bergmann escreveu:
> On Fri, Aug 7, 2026, at 21:34, André Almeida wrote:
>> To take advantage of the subset of syscall numbers that are guaranteed to
>> be shared, create a new table and adapt generation scripts to use it. In
>> that way, every new syscall can be added to a single file.
>>
>> Create special ABIs in order to make the table work for different archs:
>>
>> - `memfd_secret` for archs that implements it
>
> This was already there, so it's not really a new addition. We could
> also avoid this entirely and just rely on the stub implementation
> from kernel/sys_ni.c for those architectures that don't need it.
> They still get the macro definition, but it should be fine to define
> that for everyone.
>
>> - `cln3` for archs that use the common clone3 entry
>> - `__cln3` for archs that use their own special entry point
>
> I guess that's one way to do it. I would probably use the full
> clone3/__clone3 name here for consistency.
>
>> Some archs only care about the native entry point and have no compat, so
>> create a option to never generate __SYSCALL_WITH_COMPAT() and always
>> generate __SYSCALL().
>
> I don't see the purpose of this and would prefer to not add that
> extra option if the scripts works fine without it.
>
Some archs don't define __SYSCALL_WITH_COMPAT() (see x86_64 for
instance), so that's why I have added this option. But I can define
__SYSCALL_WITH_COMPAT() as SYSCALL(nr, native) for those archs.
>> usage() {
>> - echo >&2 "usage: $0 [--abis ABIS] [--emit-nr] [--offset OFFSET]
>> [--prefix PREFIX] INFILE OUTFILE" >&2
>> + echo >&2 "usage: $0 [--abis ABIS] [--emit-nr] [--offset OFFSET]
>> [--prefix PREFIX] [--common-tbl] INFILE OUTFILE" >&2
>
> This needs to be changed to include the argument of common-tbl
>
>> diff --git a/scripts/syscalltbl.sh b/scripts/syscalltbl.sh
>> index c4b1f85c2dd6..c0fd6af2d892 100755
>> --- a/scripts/syscalltbl.sh
>> +++ b/scripts/syscalltbl.sh
>> @@ -16,18 +16,23 @@
>> set -e
>>
>> usage() {
>> - echo >&2 "usage: $0 [--abis ABIS] INFILE OUTFILE" >&2
>> + echo >&2 "usage: $0 [--abis ABIS] [--common-tbl] [--no-compat] INFILE
>
> same here
>
> Arnd
^ permalink raw reply [flat|nested] 17+ messages in thread* Re: [PATCH RFC v3 2/8] syscalls: Create unified partial table for all archs
2026-08-10 13:19 ` André Almeida
@ 2026-08-10 14:22 ` Arnd Bergmann
0 siblings, 0 replies; 17+ messages in thread
From: Arnd Bergmann @ 2026-08-10 14:22 UTC (permalink / raw)
To: André Almeida
Cc: linux-kernel, Masami Hiramatsu, Nathan Chancellor,
Thomas Gleixner, linux-kbuild, kernel-dev
On Mon, Aug 10, 2026, at 15:19, André Almeida wrote:
> Em 07/08/2026 17:40, Arnd Bergmann escreveu:
>>
>> I don't see the purpose of this and would prefer to not add that
>> extra option if the scripts works fine without it.
>>
>
> Some archs don't define __SYSCALL_WITH_COMPAT() (see x86_64 for
> instance), so that's why I have added this option. But I can define
> __SYSCALL_WITH_COMPAT() as SYSCALL(nr, native) for those archs.
Yes, I think that is the best solution here, yes. We certainly need
to use the compat version for .tbl files that only have one entry
but do use the compat ones (mips n32, arm64 aarch32), and using it
everywhere helps remove another special case here.
Side note: in the long run, I would hope we can remove those
intermediate macros entirely and just output a readable version
of the switch/case style top-level function that x86 generates
from the table.
Arnd
^ permalink raw reply [flat|nested] 17+ messages in thread
* [PATCH RFC v3 3/8] scripts/syscall.tbl: Use the common table
2026-08-07 19:34 [PATCH RFC v3 0/8] syscalls: Add a shared table for all archs André Almeida
2026-08-07 19:34 ` [PATCH RFC v3 1/8] syscalls: Make --abis parsing more robust André Almeida
2026-08-07 19:34 ` [PATCH RFC v3 2/8] syscalls: Create unified partial table for all archs André Almeida
@ 2026-08-07 19:34 ` André Almeida
2026-08-07 19:34 ` [PATCH RFC v3 4/8] arm: Use the common syscall table André Almeida
` (5 subsequent siblings)
8 siblings, 0 replies; 17+ messages in thread
From: André Almeida @ 2026-08-07 19:34 UTC (permalink / raw)
To: Thomas Gleixner, Nathan Chancellor, Masami Hiramatsu, Arnd Bergmanon
Cc: linux-kernel, linux-kbuild, kernel-dev, André Almeida
Remove some of the duplicated code by using the common syscall number
table.
Signed-off-by: André Almeida <andrealmeid@igalia.com>
---
arch/arm64/tools/syscall_32.tbl | 68 -----------------------------------------
| 9 +++---
scripts/syscall.tbl | 68 -----------------------------------------
3 files changed, 5 insertions(+), 140 deletions(-)
diff --git a/arch/arm64/tools/syscall_32.tbl b/arch/arm64/tools/syscall_32.tbl
index 62d93d88e0fe..957cb7d59443 100644
--- a/arch/arm64/tools/syscall_32.tbl
+++ b/arch/arm64/tools/syscall_32.tbl
@@ -415,71 +415,3 @@
400 common migrate_pages sys_migrate_pages
401 common kexec_file_load sys_kexec_file_load
# 402 is unused
-403 common clock_gettime64 sys_clock_gettime
-404 common clock_settime64 sys_clock_settime
-405 common clock_adjtime64 sys_clock_adjtime
-406 common clock_getres_time64 sys_clock_getres
-407 common clock_nanosleep_time64 sys_clock_nanosleep
-408 common timer_gettime64 sys_timer_gettime
-409 common timer_settime64 sys_timer_settime
-410 common timerfd_gettime64 sys_timerfd_gettime
-411 common timerfd_settime64 sys_timerfd_settime
-412 common utimensat_time64 sys_utimensat
-413 common pselect6_time64 sys_pselect6 compat_sys_pselect6_time64
-414 common ppoll_time64 sys_ppoll compat_sys_ppoll_time64
-416 common io_pgetevents_time64 sys_io_pgetevents compat_sys_io_pgetevents_time64
-417 common recvmmsg_time64 sys_recvmmsg compat_sys_recvmmsg_time64
-418 common mq_timedsend_time64 sys_mq_timedsend
-419 common mq_timedreceive_time64 sys_mq_timedreceive
-420 common semtimedop_time64 sys_semtimedop
-421 common rt_sigtimedwait_time64 sys_rt_sigtimedwait compat_sys_rt_sigtimedwait_time64
-422 common futex_time64 sys_futex
-423 common sched_rr_get_interval_time64 sys_sched_rr_get_interval
-424 common pidfd_send_signal sys_pidfd_send_signal
-425 common io_uring_setup sys_io_uring_setup
-426 common io_uring_enter sys_io_uring_enter
-427 common io_uring_register sys_io_uring_register
-428 common open_tree sys_open_tree
-429 common move_mount sys_move_mount
-430 common fsopen sys_fsopen
-431 common fsconfig sys_fsconfig
-432 common fsmount sys_fsmount
-433 common fspick sys_fspick
-434 common pidfd_open sys_pidfd_open
-435 common clone3 sys_clone3
-436 common close_range sys_close_range
-437 common openat2 sys_openat2
-438 common pidfd_getfd sys_pidfd_getfd
-439 common faccessat2 sys_faccessat2
-440 common process_madvise sys_process_madvise
-441 common epoll_pwait2 sys_epoll_pwait2 compat_sys_epoll_pwait2
-442 common mount_setattr sys_mount_setattr
-443 common quotactl_fd sys_quotactl_fd
-444 common landlock_create_ruleset sys_landlock_create_ruleset
-445 common landlock_add_rule sys_landlock_add_rule
-446 common landlock_restrict_self sys_landlock_restrict_self
-# 447 reserved for memfd_secret
-448 common process_mrelease sys_process_mrelease
-449 common futex_waitv sys_futex_waitv
-450 common set_mempolicy_home_node sys_set_mempolicy_home_node
-451 common cachestat sys_cachestat
-452 common fchmodat2 sys_fchmodat2
-453 common map_shadow_stack sys_map_shadow_stack
-454 common futex_wake sys_futex_wake
-455 common futex_wait sys_futex_wait
-456 common futex_requeue sys_futex_requeue
-457 common statmount sys_statmount
-458 common listmount sys_listmount
-459 common lsm_get_self_attr sys_lsm_get_self_attr
-460 common lsm_set_self_attr sys_lsm_set_self_attr
-461 common lsm_list_modules sys_lsm_list_modules
-462 common mseal sys_mseal
-463 common setxattrat sys_setxattrat
-464 common getxattrat sys_getxattrat
-465 common listxattrat sys_listxattrat
-466 common removexattrat sys_removexattrat
-467 common open_tree_attr sys_open_tree_attr
-468 common file_getattr sys_file_getattr
-469 common file_setattr sys_file_setattr
-470 common listns sys_listns
-471 common rseq_slice_yield sys_rseq_slice_yield
--git a/scripts/Makefile.asm-headers b/scripts/Makefile.asm-headers
index 8a4856e74180..b8763a32a770 100644
--- a/scripts/Makefile.asm-headers
+++ b/scripts/Makefile.asm-headers
@@ -15,9 +15,10 @@ all:
src := $(srctree)/$(subst /generated,,$(obj))
-syscall_abis_32 += common,32
-syscall_abis_64 += common,64
+syscall_abis_32 += cln3,common,32
+syscall_abis_64 += cln3,common,64
syscalltbl := $(srctree)/scripts/syscall.tbl
+syscalltbl_common := $(srctree)/scripts/syscall_common.tbl
syshdr-args := --emit-nr
# let architectures override $(syscall_abis_%) and $(syscalltbl)
@@ -58,14 +59,14 @@ quiet_cmd_remove = REMOVE $(unwanted)
cmd_remove = rm -f $(unwanted)
quiet_cmd_syshdr = SYSHDR $@
- cmd_syshdr = $(CONFIG_SHELL) $(syshdr) \
+ cmd_syshdr = $(CONFIG_SHELL) $(syshdr) --common-tbl $(syscalltbl_common) \
$(if $(syshdr-args-$*),$(syshdr-args-$*),$(syshdr-args)) \
$(if $(syscall_compat),--prefix "compat$*_") \
--abis $(subst $(space),$(comma),$(strip $(syscall_abis_$*))) \
$< $@
quiet_cmd_systbl = SYSTBL $@
- cmd_systbl = $(CONFIG_SHELL) $(systbl) \
+ cmd_systbl = $(CONFIG_SHELL) $(systbl) --common-tbl $(syscalltbl_common) \
$(if $(systbl-args-$*),$(systbl-args-$*),$(systbl-args)) \
--abis $(subst $(space),$(comma),$(strip $(syscall_abis_$*))) \
$< $@
diff --git a/scripts/syscall.tbl b/scripts/syscall.tbl
index 7a42b32b6577..ee828d03094e 100644
--- a/scripts/syscall.tbl
+++ b/scripts/syscall.tbl
@@ -344,71 +344,3 @@
293 common rseq sys_rseq
294 common kexec_file_load sys_kexec_file_load
# 295 through 402 are unassigned to sync up with generic numbers don't use
-403 32 clock_gettime64 sys_clock_gettime
-404 32 clock_settime64 sys_clock_settime
-405 32 clock_adjtime64 sys_clock_adjtime
-406 32 clock_getres_time64 sys_clock_getres
-407 32 clock_nanosleep_time64 sys_clock_nanosleep
-408 32 timer_gettime64 sys_timer_gettime
-409 32 timer_settime64 sys_timer_settime
-410 32 timerfd_gettime64 sys_timerfd_gettime
-411 32 timerfd_settime64 sys_timerfd_settime
-412 32 utimensat_time64 sys_utimensat
-413 32 pselect6_time64 sys_pselect6 compat_sys_pselect6_time64
-414 32 ppoll_time64 sys_ppoll compat_sys_ppoll_time64
-416 32 io_pgetevents_time64 sys_io_pgetevents compat_sys_io_pgetevents_time64
-417 32 recvmmsg_time64 sys_recvmmsg compat_sys_recvmmsg_time64
-418 32 mq_timedsend_time64 sys_mq_timedsend
-419 32 mq_timedreceive_time64 sys_mq_timedreceive
-420 32 semtimedop_time64 sys_semtimedop
-421 32 rt_sigtimedwait_time64 sys_rt_sigtimedwait compat_sys_rt_sigtimedwait_time64
-422 32 futex_time64 sys_futex
-423 32 sched_rr_get_interval_time64 sys_sched_rr_get_interval
-424 common pidfd_send_signal sys_pidfd_send_signal
-425 common io_uring_setup sys_io_uring_setup
-426 common io_uring_enter sys_io_uring_enter
-427 common io_uring_register sys_io_uring_register
-428 common open_tree sys_open_tree
-429 common move_mount sys_move_mount
-430 common fsopen sys_fsopen
-431 common fsconfig sys_fsconfig
-432 common fsmount sys_fsmount
-433 common fspick sys_fspick
-434 common pidfd_open sys_pidfd_open
-435 common clone3 sys_clone3
-436 common close_range sys_close_range
-437 common openat2 sys_openat2
-438 common pidfd_getfd sys_pidfd_getfd
-439 common faccessat2 sys_faccessat2
-440 common process_madvise sys_process_madvise
-441 common epoll_pwait2 sys_epoll_pwait2 compat_sys_epoll_pwait2
-442 common mount_setattr sys_mount_setattr
-443 common quotactl_fd sys_quotactl_fd
-444 common landlock_create_ruleset sys_landlock_create_ruleset
-445 common landlock_add_rule sys_landlock_add_rule
-446 common landlock_restrict_self sys_landlock_restrict_self
-447 memfd_secret memfd_secret sys_memfd_secret
-448 common process_mrelease sys_process_mrelease
-449 common futex_waitv sys_futex_waitv
-450 common set_mempolicy_home_node sys_set_mempolicy_home_node
-451 common cachestat sys_cachestat
-452 common fchmodat2 sys_fchmodat2
-453 common map_shadow_stack sys_map_shadow_stack
-454 common futex_wake sys_futex_wake
-455 common futex_wait sys_futex_wait
-456 common futex_requeue sys_futex_requeue
-457 common statmount sys_statmount
-458 common listmount sys_listmount
-459 common lsm_get_self_attr sys_lsm_get_self_attr
-460 common lsm_set_self_attr sys_lsm_set_self_attr
-461 common lsm_list_modules sys_lsm_list_modules
-462 common mseal sys_mseal
-463 common setxattrat sys_setxattrat
-464 common getxattrat sys_getxattrat
-465 common listxattrat sys_listxattrat
-466 common removexattrat sys_removexattrat
-467 common open_tree_attr sys_open_tree_attr
-468 common file_getattr sys_file_getattr
-469 common file_setattr sys_file_setattr
-470 common listns sys_listns
-471 common rseq_slice_yield sys_rseq_slice_yield
--
2.55.0
^ permalink raw reply [flat|nested] 17+ messages in thread* [PATCH RFC v3 4/8] arm: Use the common syscall table
2026-08-07 19:34 [PATCH RFC v3 0/8] syscalls: Add a shared table for all archs André Almeida
` (2 preceding siblings ...)
2026-08-07 19:34 ` [PATCH RFC v3 3/8] scripts/syscall.tbl: Use the common table André Almeida
@ 2026-08-07 19:34 ` André Almeida
2026-08-07 19:34 ` [PATCH RFC v3 5/8] s390: " André Almeida
` (4 subsequent siblings)
8 siblings, 0 replies; 17+ messages in thread
From: André Almeida @ 2026-08-07 19:34 UTC (permalink / raw)
To: Thomas Gleixner, Nathan Chancellor, Masami Hiramatsu, Arnd Bergmanon
Cc: linux-kernel, linux-kbuild, kernel-dev, André Almeida
Remove some of the duplicated code by using the common syscall number
table.
Signed-off-by: André Almeida <andrealmeid@igalia.com>
---
arch/arm/tools/Makefile | 10 +++++--
arch/arm/tools/syscall.tbl | 68 ----------------------------------------------
2 files changed, 7 insertions(+), 71 deletions(-)
diff --git a/arch/arm/tools/Makefile b/arch/arm/tools/Makefile
index 28b6da8ac5f6..3e44ac0810a3 100644
--- a/arch/arm/tools/Makefile
+++ b/arch/arm/tools/Makefile
@@ -12,6 +12,8 @@ syshdr := $(srctree)/scripts/syscallhdr.sh
sysnr := $(src)/syscallnr.sh
systbl := $(srctree)/scripts/syscalltbl.sh
syscall := $(src)/syscall.tbl
+syscalltbl_common := $(srctree)/scripts/syscall_common.tbl
+abis := common,cln3,32
gen-y := $(gen)/calls-oabi.S
gen-y += $(gen)/calls-eabi.S
@@ -38,11 +40,13 @@ $(kapi)/mach-types.h: $(src)/gen-mach-types $(src)/mach-types FORCE
$(call if_changed,gen_mach)
quiet_cmd_syshdr = SYSHDR $@
- cmd_syshdr = $(CONFIG_SHELL) $(syshdr) --abis common,$* \
+ cmd_syshdr = $(CONFIG_SHELL) $(syshdr) --abis $(abis),$* \
+ --common-tbl $(syscalltbl_common) \
--offset __NR_SYSCALL_BASE $< $@
quiet_cmd_systbl = SYSTBL $@
- cmd_systbl = $(CONFIG_SHELL) $(systbl) --abis common,$* $< $@
+ cmd_systbl = $(CONFIG_SHELL) $(systbl) --abis $(abis),$* \
+ --common-tbl $(syscalltbl_common) $< $@
quiet_cmd_sysnr = SYSNR $@
cmd_sysnr = $(CONFIG_SHELL) $(sysnr) $< $@
@@ -50,7 +54,7 @@ quiet_cmd_sysnr = SYSNR $@
$(uapi)/unistd-%.h: $(syscall) $(syshdr) FORCE
$(call if_changed,syshdr)
-$(kapi)/unistd-nr.h: $(syscall) $(sysnr) FORCE
+$(kapi)/unistd-nr.h: $(syscalltbl_common) $(sysnr) FORCE
$(call if_changed,sysnr)
$(gen)/calls-%.S: $(syscall) $(systbl) FORCE
diff --git a/arch/arm/tools/syscall.tbl b/arch/arm/tools/syscall.tbl
index 94351e22bfcf..d5bc0e7adf2f 100644
--- a/arch/arm/tools/syscall.tbl
+++ b/arch/arm/tools/syscall.tbl
@@ -418,71 +418,3 @@
400 common migrate_pages sys_migrate_pages
401 common kexec_file_load sys_kexec_file_load
# 402 is unused
-403 common clock_gettime64 sys_clock_gettime
-404 common clock_settime64 sys_clock_settime
-405 common clock_adjtime64 sys_clock_adjtime
-406 common clock_getres_time64 sys_clock_getres
-407 common clock_nanosleep_time64 sys_clock_nanosleep
-408 common timer_gettime64 sys_timer_gettime
-409 common timer_settime64 sys_timer_settime
-410 common timerfd_gettime64 sys_timerfd_gettime
-411 common timerfd_settime64 sys_timerfd_settime
-412 common utimensat_time64 sys_utimensat
-413 common pselect6_time64 sys_pselect6
-414 common ppoll_time64 sys_ppoll
-416 common io_pgetevents_time64 sys_io_pgetevents
-417 common recvmmsg_time64 sys_recvmmsg
-418 common mq_timedsend_time64 sys_mq_timedsend
-419 common mq_timedreceive_time64 sys_mq_timedreceive
-420 common semtimedop_time64 sys_semtimedop
-421 common rt_sigtimedwait_time64 sys_rt_sigtimedwait
-422 common futex_time64 sys_futex
-423 common sched_rr_get_interval_time64 sys_sched_rr_get_interval
-424 common pidfd_send_signal sys_pidfd_send_signal
-425 common io_uring_setup sys_io_uring_setup
-426 common io_uring_enter sys_io_uring_enter
-427 common io_uring_register sys_io_uring_register
-428 common open_tree sys_open_tree
-429 common move_mount sys_move_mount
-430 common fsopen sys_fsopen
-431 common fsconfig sys_fsconfig
-432 common fsmount sys_fsmount
-433 common fspick sys_fspick
-434 common pidfd_open sys_pidfd_open
-435 common clone3 sys_clone3
-436 common close_range sys_close_range
-437 common openat2 sys_openat2
-438 common pidfd_getfd sys_pidfd_getfd
-439 common faccessat2 sys_faccessat2
-440 common process_madvise sys_process_madvise
-441 common epoll_pwait2 sys_epoll_pwait2
-442 common mount_setattr sys_mount_setattr
-443 common quotactl_fd sys_quotactl_fd
-444 common landlock_create_ruleset sys_landlock_create_ruleset
-445 common landlock_add_rule sys_landlock_add_rule
-446 common landlock_restrict_self sys_landlock_restrict_self
-# 447 reserved for memfd_secret
-448 common process_mrelease sys_process_mrelease
-449 common futex_waitv sys_futex_waitv
-450 common set_mempolicy_home_node sys_set_mempolicy_home_node
-451 common cachestat sys_cachestat
-452 common fchmodat2 sys_fchmodat2
-453 common map_shadow_stack sys_map_shadow_stack
-454 common futex_wake sys_futex_wake
-455 common futex_wait sys_futex_wait
-456 common futex_requeue sys_futex_requeue
-457 common statmount sys_statmount
-458 common listmount sys_listmount
-459 common lsm_get_self_attr sys_lsm_get_self_attr
-460 common lsm_set_self_attr sys_lsm_set_self_attr
-461 common lsm_list_modules sys_lsm_list_modules
-462 common mseal sys_mseal
-463 common setxattrat sys_setxattrat
-464 common getxattrat sys_getxattrat
-465 common listxattrat sys_listxattrat
-466 common removexattrat sys_removexattrat
-467 common open_tree_attr sys_open_tree_attr
-468 common file_getattr sys_file_getattr
-469 common file_setattr sys_file_setattr
-470 common listns sys_listns
-471 common rseq_slice_yield sys_rseq_slice_yield
--
2.55.0
^ permalink raw reply [flat|nested] 17+ messages in thread* [PATCH RFC v3 5/8] s390: Use the common syscall table
2026-08-07 19:34 [PATCH RFC v3 0/8] syscalls: Add a shared table for all archs André Almeida
` (3 preceding siblings ...)
2026-08-07 19:34 ` [PATCH RFC v3 4/8] arm: Use the common syscall table André Almeida
@ 2026-08-07 19:34 ` André Almeida
2026-08-07 19:34 ` [PATCH RFC v3 6/8] sparc: " André Almeida
` (3 subsequent siblings)
8 siblings, 0 replies; 17+ messages in thread
From: André Almeida @ 2026-08-07 19:34 UTC (permalink / raw)
To: Thomas Gleixner, Nathan Chancellor, Masami Hiramatsu, Arnd Bergmanon
Cc: linux-kernel, linux-kbuild, kernel-dev, André Almeida
Remove some of the duplicated code by using the common syscall number
table.
Signed-off-by: André Almeida <andrealmeid@igalia.com>
---
arch/s390/kernel/syscalls/Makefile | 8 ++++--
arch/s390/kernel/syscalls/syscall.tbl | 48 -----------------------------------
2 files changed, 6 insertions(+), 50 deletions(-)
diff --git a/arch/s390/kernel/syscalls/Makefile b/arch/s390/kernel/syscalls/Makefile
index d5fca0ca0890..b06d2c8643f7 100644
--- a/arch/s390/kernel/syscalls/Makefile
+++ b/arch/s390/kernel/syscalls/Makefile
@@ -5,14 +5,18 @@ uapi := arch/$(SRCARCH)/include/generated/uapi/asm
$(shell mkdir -p $(uapi) $(kapi))
syscall := $(src)/syscall.tbl
+syscalltbl_common := $(srctree)/scripts/syscall_common.tbl
syshdr := $(srctree)/scripts/syscallhdr.sh
systbl := $(srctree)/scripts/syscalltbl.sh
+abis := common,cln3,memfd_secret
quiet_cmd_syshdr = SYSHDR $@
- cmd_syshdr = $(CONFIG_SHELL) $(syshdr) --emit-nr --abis common,$* $< $@
+ cmd_syshdr = $(CONFIG_SHELL) $(syshdr) --emit-nr --abis $(abis),$* \
+ --common-tbl $(syscalltbl_common) $< $@
quiet_cmd_systbl = SYSTBL $@
- cmd_systbl = $(CONFIG_SHELL) $(systbl) --abis common,$* $< $@
+ cmd_systbl = $(CONFIG_SHELL) $(systbl) --abis $(abis),$* \
+ --common-tbl $(syscalltbl_common) --no-compat $< $@
$(uapi)/unistd_%.h: $(syscall) $(syshdr) FORCE
$(call if_changed,syshdr)
diff --git a/arch/s390/kernel/syscalls/syscall.tbl b/arch/s390/kernel/syscalls/syscall.tbl
index 09a7ef04d979..ce6d15260dd1 100644
--- a/arch/s390/kernel/syscalls/syscall.tbl
+++ b/arch/s390/kernel/syscalls/syscall.tbl
@@ -350,51 +350,3 @@
400 common msgsnd sys_msgsnd
401 common msgrcv sys_msgrcv
402 common msgctl sys_msgctl
-424 common pidfd_send_signal sys_pidfd_send_signal
-425 common io_uring_setup sys_io_uring_setup
-426 common io_uring_enter sys_io_uring_enter
-427 common io_uring_register sys_io_uring_register
-428 common open_tree sys_open_tree
-429 common move_mount sys_move_mount
-430 common fsopen sys_fsopen
-431 common fsconfig sys_fsconfig
-432 common fsmount sys_fsmount
-433 common fspick sys_fspick
-434 common pidfd_open sys_pidfd_open
-435 common clone3 sys_clone3
-436 common close_range sys_close_range
-437 common openat2 sys_openat2
-438 common pidfd_getfd sys_pidfd_getfd
-439 common faccessat2 sys_faccessat2
-440 common process_madvise sys_process_madvise
-441 common epoll_pwait2 sys_epoll_pwait2
-442 common mount_setattr sys_mount_setattr
-443 common quotactl_fd sys_quotactl_fd
-444 common landlock_create_ruleset sys_landlock_create_ruleset
-445 common landlock_add_rule sys_landlock_add_rule
-446 common landlock_restrict_self sys_landlock_restrict_self
-447 common memfd_secret sys_memfd_secret
-448 common process_mrelease sys_process_mrelease
-449 common futex_waitv sys_futex_waitv
-450 common set_mempolicy_home_node sys_set_mempolicy_home_node
-451 common cachestat sys_cachestat
-452 common fchmodat2 sys_fchmodat2
-453 common map_shadow_stack sys_map_shadow_stack
-454 common futex_wake sys_futex_wake
-455 common futex_wait sys_futex_wait
-456 common futex_requeue sys_futex_requeue
-457 common statmount sys_statmount
-458 common listmount sys_listmount
-459 common lsm_get_self_attr sys_lsm_get_self_attr
-460 common lsm_set_self_attr sys_lsm_set_self_attr
-461 common lsm_list_modules sys_lsm_list_modules
-462 common mseal sys_mseal
-463 common setxattrat sys_setxattrat
-464 common getxattrat sys_getxattrat
-465 common listxattrat sys_listxattrat
-466 common removexattrat sys_removexattrat
-467 common open_tree_attr sys_open_tree_attr
-468 common file_getattr sys_file_getattr
-469 common file_setattr sys_file_setattr
-470 common listns sys_listns
-471 common rseq_slice_yield sys_rseq_slice_yield
--
2.55.0
^ permalink raw reply [flat|nested] 17+ messages in thread* [PATCH RFC v3 6/8] sparc: Use the common syscall table
2026-08-07 19:34 [PATCH RFC v3 0/8] syscalls: Add a shared table for all archs André Almeida
` (4 preceding siblings ...)
2026-08-07 19:34 ` [PATCH RFC v3 5/8] s390: " André Almeida
@ 2026-08-07 19:34 ` André Almeida
2026-08-07 19:34 ` [PATCH RFC v3 7/8] mips: Remove duplicated syscallnr.sh André Almeida
` (2 subsequent siblings)
8 siblings, 0 replies; 17+ messages in thread
From: André Almeida @ 2026-08-07 19:34 UTC (permalink / raw)
To: Thomas Gleixner, Nathan Chancellor, Masami Hiramatsu, Arnd Bergmanon
Cc: linux-kernel, linux-kbuild, kernel-dev, André Almeida
Remove some of the duplicated code by using the common syscall number
table.
The generated files are not exactly the same as before, but they have no
functional changes:
- syscall_table_32.h would generated lines like the following
__SYSCALL_WITH_COMPAT(422, sys_futex, sys_futex), which is equivalent to
__SYSCALL(422, sys_futex)
Signed-off-by: André Almeida <andrealmeid@igalia.com>
---
arch/sparc/kernel/syscalls/Makefile | 8 +++-
arch/sparc/kernel/syscalls/syscall.tbl | 68 ----------------------------------
2 files changed, 6 insertions(+), 70 deletions(-)
diff --git a/arch/sparc/kernel/syscalls/Makefile b/arch/sparc/kernel/syscalls/Makefile
index 8440c16dfb22..925d7886af74 100644
--- a/arch/sparc/kernel/syscalls/Makefile
+++ b/arch/sparc/kernel/syscalls/Makefile
@@ -5,14 +5,18 @@ uapi := arch/$(SRCARCH)/include/generated/uapi/asm
$(shell mkdir -p $(uapi) $(kapi))
syscall := $(src)/syscall.tbl
+syscalltbl_common := $(srctree)/scripts/syscall_common.tbl
syshdr := $(srctree)/scripts/syscallhdr.sh
systbl := $(srctree)/scripts/syscalltbl.sh
+abis := __cln3,common
quiet_cmd_syshdr = SYSHDR $@
- cmd_syshdr = $(CONFIG_SHELL) $(syshdr) --emit-nr --abis common,$* $< $@
+ cmd_syshdr = $(CONFIG_SHELL) $(syshdr) --emit-nr --abis $(abis),$* \
+ --common-tbl $(syscalltbl_common) $< $@
quiet_cmd_systbl = SYSTBL $@
- cmd_systbl = $(CONFIG_SHELL) $(systbl) --abis common,$* $< $@
+ cmd_systbl = $(CONFIG_SHELL) $(systbl) --abis $(abis),$* \
+ --common-tbl $(syscalltbl_common) $< $@
$(uapi)/unistd_%.h: $(syscall) $(syshdr) FORCE
$(call if_changed,syshdr)
diff --git a/arch/sparc/kernel/syscalls/syscall.tbl b/arch/sparc/kernel/syscalls/syscall.tbl
index 7e71bf7fcd14..5f407da6b9da 100644
--- a/arch/sparc/kernel/syscalls/syscall.tbl
+++ b/arch/sparc/kernel/syscalls/syscall.tbl
@@ -449,71 +449,3 @@
400 common msgsnd sys_msgsnd compat_sys_msgsnd
401 common msgrcv sys_msgrcv compat_sys_msgrcv
402 common msgctl sys_msgctl compat_sys_msgctl
-403 32 clock_gettime64 sys_clock_gettime sys_clock_gettime
-404 32 clock_settime64 sys_clock_settime sys_clock_settime
-405 32 clock_adjtime64 sys_clock_adjtime sys_clock_adjtime
-406 32 clock_getres_time64 sys_clock_getres sys_clock_getres
-407 32 clock_nanosleep_time64 sys_clock_nanosleep sys_clock_nanosleep
-408 32 timer_gettime64 sys_timer_gettime sys_timer_gettime
-409 32 timer_settime64 sys_timer_settime sys_timer_settime
-410 32 timerfd_gettime64 sys_timerfd_gettime sys_timerfd_gettime
-411 32 timerfd_settime64 sys_timerfd_settime sys_timerfd_settime
-412 32 utimensat_time64 sys_utimensat sys_utimensat
-413 32 pselect6_time64 sys_pselect6 compat_sys_pselect6_time64
-414 32 ppoll_time64 sys_ppoll compat_sys_ppoll_time64
-416 32 io_pgetevents_time64 sys_io_pgetevents compat_sys_io_pgetevents_time64
-417 32 recvmmsg_time64 sys_recvmmsg compat_sys_recvmmsg_time64
-418 32 mq_timedsend_time64 sys_mq_timedsend sys_mq_timedsend
-419 32 mq_timedreceive_time64 sys_mq_timedreceive sys_mq_timedreceive
-420 32 semtimedop_time64 sys_semtimedop sys_semtimedop
-421 32 rt_sigtimedwait_time64 sys_rt_sigtimedwait compat_sys_rt_sigtimedwait_time64
-422 32 futex_time64 sys_futex sys_futex
-423 32 sched_rr_get_interval_time64 sys_sched_rr_get_interval sys_sched_rr_get_interval
-424 common pidfd_send_signal sys_pidfd_send_signal
-425 common io_uring_setup sys_io_uring_setup
-426 common io_uring_enter sys_io_uring_enter
-427 common io_uring_register sys_io_uring_register
-428 common open_tree sys_open_tree
-429 common move_mount sys_move_mount
-430 common fsopen sys_fsopen
-431 common fsconfig sys_fsconfig
-432 common fsmount sys_fsmount
-433 common fspick sys_fspick
-434 common pidfd_open sys_pidfd_open
-435 common clone3 __sys_clone3
-436 common close_range sys_close_range
-437 common openat2 sys_openat2
-438 common pidfd_getfd sys_pidfd_getfd
-439 common faccessat2 sys_faccessat2
-440 common process_madvise sys_process_madvise
-441 common epoll_pwait2 sys_epoll_pwait2 compat_sys_epoll_pwait2
-442 common mount_setattr sys_mount_setattr
-443 common quotactl_fd sys_quotactl_fd
-444 common landlock_create_ruleset sys_landlock_create_ruleset
-445 common landlock_add_rule sys_landlock_add_rule
-446 common landlock_restrict_self sys_landlock_restrict_self
-# 447 reserved for memfd_secret
-448 common process_mrelease sys_process_mrelease
-449 common futex_waitv sys_futex_waitv
-450 common set_mempolicy_home_node sys_set_mempolicy_home_node
-451 common cachestat sys_cachestat
-452 common fchmodat2 sys_fchmodat2
-453 common map_shadow_stack sys_map_shadow_stack
-454 common futex_wake sys_futex_wake
-455 common futex_wait sys_futex_wait
-456 common futex_requeue sys_futex_requeue
-457 common statmount sys_statmount
-458 common listmount sys_listmount
-459 common lsm_get_self_attr sys_lsm_get_self_attr
-460 common lsm_set_self_attr sys_lsm_set_self_attr
-461 common lsm_list_modules sys_lsm_list_modules
-462 common mseal sys_mseal
-463 common setxattrat sys_setxattrat
-464 common getxattrat sys_getxattrat
-465 common listxattrat sys_listxattrat
-466 common removexattrat sys_removexattrat
-467 common open_tree_attr sys_open_tree_attr
-468 common file_getattr sys_file_getattr
-469 common file_setattr sys_file_setattr
-470 common listns sys_listns
-471 common rseq_slice_yield sys_rseq_slice_yield
--
2.55.0
^ permalink raw reply [flat|nested] 17+ messages in thread* [PATCH RFC v3 7/8] mips: Remove duplicated syscallnr.sh
2026-08-07 19:34 [PATCH RFC v3 0/8] syscalls: Add a shared table for all archs André Almeida
` (5 preceding siblings ...)
2026-08-07 19:34 ` [PATCH RFC v3 6/8] sparc: " André Almeida
@ 2026-08-07 19:34 ` André Almeida
2026-08-07 19:34 ` [PATCH RFC v3 8/8] mips: Use the common syscall table André Almeida
2026-08-07 20:43 ` [PATCH RFC v3 0/8] syscalls: Add a shared table for all archs Arnd Bergmann
8 siblings, 0 replies; 17+ messages in thread
From: André Almeida @ 2026-08-07 19:34 UTC (permalink / raw)
To: Thomas Gleixner, Nathan Chancellor, Masami Hiramatsu, Arnd Bergmanon
Cc: linux-kernel, linux-kbuild, kernel-dev, André Almeida
The common scripts/ already have a script for generating the numbers of
syscalls file. Use it and drop the custom script.
Signed-off-by: André Almeida <andrealmeid@igalia.com>
---
arch/mips/kernel/syscalls/Makefile | 9 +++++----
arch/mips/kernel/syscalls/syscallnr.sh | 26 --------------------------
2 files changed, 5 insertions(+), 30 deletions(-)
diff --git a/arch/mips/kernel/syscalls/Makefile b/arch/mips/kernel/syscalls/Makefile
index 56f6f093bb88..69adc21483ed 100644
--- a/arch/mips/kernel/syscalls/Makefile
+++ b/arch/mips/kernel/syscalls/Makefile
@@ -5,16 +5,17 @@ uapi := arch/$(SRCARCH)/include/generated/uapi/asm
$(shell mkdir -p $(uapi) $(kapi))
syshdr := $(srctree)/scripts/syscallhdr.sh
-sysnr := $(src)/syscallnr.sh
+sysnr := $(srctree)/scripts/syscallnr.sh
systbl := $(srctree)/scripts/syscalltbl.sh
quiet_cmd_syshdr = SYSHDR $@
cmd_syshdr = $(CONFIG_SHELL) $(syshdr) --offset __NR_Linux $< $@
quiet_cmd_sysnr = SYSNR $@
- cmd_sysnr = $(CONFIG_SHELL) '$(sysnr)' '$<' '$@' \
- '$(sysnr_abis_$(basetarget))' \
- '$(sysnr_pfx_$(basetarget))'
+ cmd_sysnr = $(CONFIG_SHELL) $(sysnr) \
+ --prefix $(sysnr_pfx_$(basetarget))_Linux_ \
+ --abis $(sysnr_abis_$(basetarget)) \
+ $< $@
quiet_cmd_systbl = SYSTBL $@
cmd_systbl = $(CONFIG_SHELL) $(systbl) $< $@
diff --git a/arch/mips/kernel/syscalls/syscallnr.sh b/arch/mips/kernel/syscalls/syscallnr.sh
deleted file mode 100644
index c190bbefbfc2..000000000000
--- a/arch/mips/kernel/syscalls/syscallnr.sh
+++ /dev/null
@@ -1,26 +0,0 @@
-#!/bin/sh
-# SPDX-License-Identifier: GPL-2.0
-
-in="$1"
-out="$2"
-my_abis=`echo "($3)" | tr ',' '|'`
-prefix="$4"
-
-fileguard=_UAPI_ASM_MIPS_`basename "$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
- nxt=$((nr+1))
- done
-
- printf "#define __NR_%s_Linux_syscalls\t%s\n" "${prefix}" "${nxt}"
- printf "\n"
- printf "#endif /* %s */" "${fileguard}"
- printf "\n"
-) > "$out"
--
2.55.0
^ permalink raw reply [flat|nested] 17+ messages in thread* [PATCH RFC v3 8/8] mips: Use the common syscall table
2026-08-07 19:34 [PATCH RFC v3 0/8] syscalls: Add a shared table for all archs André Almeida
` (6 preceding siblings ...)
2026-08-07 19:34 ` [PATCH RFC v3 7/8] mips: Remove duplicated syscallnr.sh André Almeida
@ 2026-08-07 19:34 ` André Almeida
2026-08-07 21:02 ` Arnd Bergmann
2026-08-07 20:43 ` [PATCH RFC v3 0/8] syscalls: Add a shared table for all archs Arnd Bergmann
8 siblings, 1 reply; 17+ messages in thread
From: André Almeida @ 2026-08-07 19:34 UTC (permalink / raw)
To: Thomas Gleixner, Nathan Chancellor, Masami Hiramatsu, Arnd Bergmanon
Cc: linux-kernel, linux-kbuild, kernel-dev, André Almeida
Syscall numbers from 403 are shared with all architectures, so move the
toolchain to use the common syscall table and remove duplicated code.
The generated files are not exactly the same as before, but they have no
functional changes:
- for O32 ABI, the syscall table would have entries like
__SYSCALL_WITH_COMPAT(403, sys_clock_gettime, sys_clock_gettime)
which is equivalent to the new entry __SYSCALL(403, sys_clock_gettime)
- for N32 ABI, the syscall table would have entries like
__SYSCALL(413, compat_sys_pselect6_time64), which is equivalent to
__SYSCALL_WITH_COMPAT(413, sys_pselect6, compat_sys_pselect6_time64)
given the new __SYSCALL_WITH_COMPAT() definition for N32.
The generated syscall table for N64 is exactly the same.
Signed-off-by: André Almeida <andrealmeid@igalia.com>
---
arch/mips/kernel/scall64-n32.S | 1 +
arch/mips/kernel/syscalls/Makefile | 22 +++++++---
arch/mips/kernel/syscalls/syscall_n32.tbl | 68 -------------------------------
arch/mips/kernel/syscalls/syscall_n64.tbl | 48 ----------------------
arch/mips/kernel/syscalls/syscall_o32.tbl | 68 -------------------------------
5 files changed, 18 insertions(+), 189 deletions(-)
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index 97788859238c..ddf81e379464 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -102,6 +102,7 @@ not_n32_scall:
END(handle_sysn32)
+#define __SYSCALL_WITH_COMPAT(nr, native, compat) __SYSCALL(nr, compat)
#define __SYSCALL(nr, entry) PTR_WD entry
.type sysn32_call_table, @object
EXPORT(sysn32_call_table)
diff --git a/arch/mips/kernel/syscalls/Makefile b/arch/mips/kernel/syscalls/Makefile
index 69adc21483ed..9748d053d665 100644
--- a/arch/mips/kernel/syscalls/Makefile
+++ b/arch/mips/kernel/syscalls/Makefile
@@ -7,18 +7,22 @@ $(shell mkdir -p $(uapi) $(kapi))
syshdr := $(srctree)/scripts/syscallhdr.sh
sysnr := $(srctree)/scripts/syscallnr.sh
systbl := $(srctree)/scripts/syscalltbl.sh
+systbl_common := $(srctree)/scripts/syscall_common.tbl
quiet_cmd_syshdr = SYSHDR $@
- cmd_syshdr = $(CONFIG_SHELL) $(syshdr) --offset __NR_Linux $< $@
+ cmd_syshdr = $(CONFIG_SHELL) $(syshdr) --offset __NR_Linux \
+ --common-tbl $(systbl_common) \
+ --abis $(abis_$*) $< $@
quiet_cmd_sysnr = SYSNR $@
cmd_sysnr = $(CONFIG_SHELL) $(sysnr) \
--prefix $(sysnr_pfx_$(basetarget))_Linux_ \
- --abis $(sysnr_abis_$(basetarget)) \
- $< $@
+ --abis $(abis_$*) $< $@
quiet_cmd_systbl = SYSTBL $@
- cmd_systbl = $(CONFIG_SHELL) $(systbl) $< $@
+ cmd_systbl = $(CONFIG_SHELL) $(systbl) \
+ --common-tbl $(systbl_common) \
+ --abis $(abis_$*) $(no_compat_$*) $< $@
$(uapi)/unistd_%.h: $(src)/syscall_%.tbl $(syshdr) FORCE
$(call if_changed,syshdr)
@@ -27,7 +31,15 @@ sysnr_pfx_unistd_nr_n32 := N32
sysnr_pfx_unistd_nr_n64 := 64
sysnr_pfx_unistd_nr_o32 := O32
-$(kapi)/unistd_nr_%.h: $(src)/syscall_%.tbl $(sysnr) FORCE
+abis := common,__cln3
+
+abis_n32 := $(abis),32,n32
+abis_o32 := $(abis),32,o32
+abis_n64 := $(abis),64,n64
+
+no_compat_n64 := --no-compat
+
+$(kapi)/unistd_nr_%.h: $(systbl_common) $(sysnr) FORCE
$(call if_changed,sysnr)
$(kapi)/syscall_table_%.h: $(src)/syscall_%.tbl $(systbl) FORCE
diff --git a/arch/mips/kernel/syscalls/syscall_n32.tbl b/arch/mips/kernel/syscalls/syscall_n32.tbl
index 7430714e2b8f..b3ba69c3c9c3 100644
--- a/arch/mips/kernel/syscalls/syscall_n32.tbl
+++ b/arch/mips/kernel/syscalls/syscall_n32.tbl
@@ -342,71 +342,3 @@
331 n32 rseq sys_rseq
332 n32 io_pgetevents compat_sys_io_pgetevents
# 333 through 402 are unassigned to sync up with generic numbers
-403 n32 clock_gettime64 sys_clock_gettime
-404 n32 clock_settime64 sys_clock_settime
-405 n32 clock_adjtime64 sys_clock_adjtime
-406 n32 clock_getres_time64 sys_clock_getres
-407 n32 clock_nanosleep_time64 sys_clock_nanosleep
-408 n32 timer_gettime64 sys_timer_gettime
-409 n32 timer_settime64 sys_timer_settime
-410 n32 timerfd_gettime64 sys_timerfd_gettime
-411 n32 timerfd_settime64 sys_timerfd_settime
-412 n32 utimensat_time64 sys_utimensat
-413 n32 pselect6_time64 compat_sys_pselect6_time64
-414 n32 ppoll_time64 compat_sys_ppoll_time64
-416 n32 io_pgetevents_time64 compat_sys_io_pgetevents_time64
-417 n32 recvmmsg_time64 compat_sys_recvmmsg_time64
-418 n32 mq_timedsend_time64 sys_mq_timedsend
-419 n32 mq_timedreceive_time64 sys_mq_timedreceive
-420 n32 semtimedop_time64 sys_semtimedop
-421 n32 rt_sigtimedwait_time64 compat_sys_rt_sigtimedwait_time64
-422 n32 futex_time64 sys_futex
-423 n32 sched_rr_get_interval_time64 sys_sched_rr_get_interval
-424 n32 pidfd_send_signal sys_pidfd_send_signal
-425 n32 io_uring_setup sys_io_uring_setup
-426 n32 io_uring_enter sys_io_uring_enter
-427 n32 io_uring_register sys_io_uring_register
-428 n32 open_tree sys_open_tree
-429 n32 move_mount sys_move_mount
-430 n32 fsopen sys_fsopen
-431 n32 fsconfig sys_fsconfig
-432 n32 fsmount sys_fsmount
-433 n32 fspick sys_fspick
-434 n32 pidfd_open sys_pidfd_open
-435 n32 clone3 __sys_clone3
-436 n32 close_range sys_close_range
-437 n32 openat2 sys_openat2
-438 n32 pidfd_getfd sys_pidfd_getfd
-439 n32 faccessat2 sys_faccessat2
-440 n32 process_madvise sys_process_madvise
-441 n32 epoll_pwait2 compat_sys_epoll_pwait2
-442 n32 mount_setattr sys_mount_setattr
-443 n32 quotactl_fd sys_quotactl_fd
-444 n32 landlock_create_ruleset sys_landlock_create_ruleset
-445 n32 landlock_add_rule sys_landlock_add_rule
-446 n32 landlock_restrict_self sys_landlock_restrict_self
-# 447 reserved for memfd_secret
-448 n32 process_mrelease sys_process_mrelease
-449 n32 futex_waitv sys_futex_waitv
-450 n32 set_mempolicy_home_node sys_set_mempolicy_home_node
-451 n32 cachestat sys_cachestat
-452 n32 fchmodat2 sys_fchmodat2
-453 n32 map_shadow_stack sys_map_shadow_stack
-454 n32 futex_wake sys_futex_wake
-455 n32 futex_wait sys_futex_wait
-456 n32 futex_requeue sys_futex_requeue
-457 n32 statmount sys_statmount
-458 n32 listmount sys_listmount
-459 n32 lsm_get_self_attr sys_lsm_get_self_attr
-460 n32 lsm_set_self_attr sys_lsm_set_self_attr
-461 n32 lsm_list_modules sys_lsm_list_modules
-462 n32 mseal sys_mseal
-463 n32 setxattrat sys_setxattrat
-464 n32 getxattrat sys_getxattrat
-465 n32 listxattrat sys_listxattrat
-466 n32 removexattrat sys_removexattrat
-467 n32 open_tree_attr sys_open_tree_attr
-468 n32 file_getattr sys_file_getattr
-469 n32 file_setattr sys_file_setattr
-470 n32 listns sys_listns
-471 n32 rseq_slice_yield sys_rseq_slice_yield
diff --git a/arch/mips/kernel/syscalls/syscall_n64.tbl b/arch/mips/kernel/syscalls/syscall_n64.tbl
index 630aab9e5425..36c537c0d9f3 100644
--- a/arch/mips/kernel/syscalls/syscall_n64.tbl
+++ b/arch/mips/kernel/syscalls/syscall_n64.tbl
@@ -338,51 +338,3 @@
327 n64 rseq sys_rseq
328 n64 io_pgetevents sys_io_pgetevents
# 329 through 423 are reserved to sync up with other architectures
-424 n64 pidfd_send_signal sys_pidfd_send_signal
-425 n64 io_uring_setup sys_io_uring_setup
-426 n64 io_uring_enter sys_io_uring_enter
-427 n64 io_uring_register sys_io_uring_register
-428 n64 open_tree sys_open_tree
-429 n64 move_mount sys_move_mount
-430 n64 fsopen sys_fsopen
-431 n64 fsconfig sys_fsconfig
-432 n64 fsmount sys_fsmount
-433 n64 fspick sys_fspick
-434 n64 pidfd_open sys_pidfd_open
-435 n64 clone3 __sys_clone3
-436 n64 close_range sys_close_range
-437 n64 openat2 sys_openat2
-438 n64 pidfd_getfd sys_pidfd_getfd
-439 n64 faccessat2 sys_faccessat2
-440 n64 process_madvise sys_process_madvise
-441 n64 epoll_pwait2 sys_epoll_pwait2
-442 n64 mount_setattr sys_mount_setattr
-443 n64 quotactl_fd sys_quotactl_fd
-444 n64 landlock_create_ruleset sys_landlock_create_ruleset
-445 n64 landlock_add_rule sys_landlock_add_rule
-446 n64 landlock_restrict_self sys_landlock_restrict_self
-# 447 reserved for memfd_secret
-448 n64 process_mrelease sys_process_mrelease
-449 n64 futex_waitv sys_futex_waitv
-450 common set_mempolicy_home_node sys_set_mempolicy_home_node
-451 n64 cachestat sys_cachestat
-452 n64 fchmodat2 sys_fchmodat2
-453 n64 map_shadow_stack sys_map_shadow_stack
-454 n64 futex_wake sys_futex_wake
-455 n64 futex_wait sys_futex_wait
-456 n64 futex_requeue sys_futex_requeue
-457 n64 statmount sys_statmount
-458 n64 listmount sys_listmount
-459 n64 lsm_get_self_attr sys_lsm_get_self_attr
-460 n64 lsm_set_self_attr sys_lsm_set_self_attr
-461 n64 lsm_list_modules sys_lsm_list_modules
-462 n64 mseal sys_mseal
-463 n64 setxattrat sys_setxattrat
-464 n64 getxattrat sys_getxattrat
-465 n64 listxattrat sys_listxattrat
-466 n64 removexattrat sys_removexattrat
-467 n64 open_tree_attr sys_open_tree_attr
-468 n64 file_getattr sys_file_getattr
-469 n64 file_setattr sys_file_setattr
-470 n64 listns sys_listns
-471 n64 rseq_slice_yield sys_rseq_slice_yield
diff --git a/arch/mips/kernel/syscalls/syscall_o32.tbl b/arch/mips/kernel/syscalls/syscall_o32.tbl
index 128653112284..070d7f7dd1aa 100644
--- a/arch/mips/kernel/syscalls/syscall_o32.tbl
+++ b/arch/mips/kernel/syscalls/syscall_o32.tbl
@@ -391,71 +391,3 @@
400 o32 msgsnd sys_msgsnd compat_sys_msgsnd
401 o32 msgrcv sys_msgrcv compat_sys_msgrcv
402 o32 msgctl sys_msgctl compat_sys_msgctl
-403 o32 clock_gettime64 sys_clock_gettime sys_clock_gettime
-404 o32 clock_settime64 sys_clock_settime sys_clock_settime
-405 o32 clock_adjtime64 sys_clock_adjtime sys_clock_adjtime
-406 o32 clock_getres_time64 sys_clock_getres sys_clock_getres
-407 o32 clock_nanosleep_time64 sys_clock_nanosleep sys_clock_nanosleep
-408 o32 timer_gettime64 sys_timer_gettime sys_timer_gettime
-409 o32 timer_settime64 sys_timer_settime sys_timer_settime
-410 o32 timerfd_gettime64 sys_timerfd_gettime sys_timerfd_gettime
-411 o32 timerfd_settime64 sys_timerfd_settime sys_timerfd_settime
-412 o32 utimensat_time64 sys_utimensat sys_utimensat
-413 o32 pselect6_time64 sys_pselect6 compat_sys_pselect6_time64
-414 o32 ppoll_time64 sys_ppoll compat_sys_ppoll_time64
-416 o32 io_pgetevents_time64 sys_io_pgetevents compat_sys_io_pgetevents_time64
-417 o32 recvmmsg_time64 sys_recvmmsg compat_sys_recvmmsg_time64
-418 o32 mq_timedsend_time64 sys_mq_timedsend sys_mq_timedsend
-419 o32 mq_timedreceive_time64 sys_mq_timedreceive sys_mq_timedreceive
-420 o32 semtimedop_time64 sys_semtimedop sys_semtimedop
-421 o32 rt_sigtimedwait_time64 sys_rt_sigtimedwait compat_sys_rt_sigtimedwait_time64
-422 o32 futex_time64 sys_futex sys_futex
-423 o32 sched_rr_get_interval_time64 sys_sched_rr_get_interval sys_sched_rr_get_interval
-424 o32 pidfd_send_signal sys_pidfd_send_signal
-425 o32 io_uring_setup sys_io_uring_setup
-426 o32 io_uring_enter sys_io_uring_enter
-427 o32 io_uring_register sys_io_uring_register
-428 o32 open_tree sys_open_tree
-429 o32 move_mount sys_move_mount
-430 o32 fsopen sys_fsopen
-431 o32 fsconfig sys_fsconfig
-432 o32 fsmount sys_fsmount
-433 o32 fspick sys_fspick
-434 o32 pidfd_open sys_pidfd_open
-435 o32 clone3 __sys_clone3
-436 o32 close_range sys_close_range
-437 o32 openat2 sys_openat2
-438 o32 pidfd_getfd sys_pidfd_getfd
-439 o32 faccessat2 sys_faccessat2
-440 o32 process_madvise sys_process_madvise
-441 o32 epoll_pwait2 sys_epoll_pwait2 compat_sys_epoll_pwait2
-442 o32 mount_setattr sys_mount_setattr
-443 o32 quotactl_fd sys_quotactl_fd
-444 o32 landlock_create_ruleset sys_landlock_create_ruleset
-445 o32 landlock_add_rule sys_landlock_add_rule
-446 o32 landlock_restrict_self sys_landlock_restrict_self
-# 447 reserved for memfd_secret
-448 o32 process_mrelease sys_process_mrelease
-449 o32 futex_waitv sys_futex_waitv
-450 o32 set_mempolicy_home_node sys_set_mempolicy_home_node
-451 o32 cachestat sys_cachestat
-452 o32 fchmodat2 sys_fchmodat2
-453 o32 map_shadow_stack sys_map_shadow_stack
-454 o32 futex_wake sys_futex_wake
-455 o32 futex_wait sys_futex_wait
-456 o32 futex_requeue sys_futex_requeue
-457 o32 statmount sys_statmount
-458 o32 listmount sys_listmount
-459 o32 lsm_get_self_attr sys_lsm_get_self_attr
-460 o32 lsm_set_self_attr sys_lsm_set_self_attr
-461 o32 lsm_list_modules sys_lsm_list_modules
-462 o32 mseal sys_mseal
-463 o32 setxattrat sys_setxattrat
-464 o32 getxattrat sys_getxattrat
-465 o32 listxattrat sys_listxattrat
-466 o32 removexattrat sys_removexattrat
-467 o32 open_tree_attr sys_open_tree_attr
-468 o32 file_getattr sys_file_getattr
-469 o32 file_setattr sys_file_setattr
-470 o32 listns sys_listns
-471 o32 rseq_slice_yield sys_rseq_slice_yield
--
2.55.0
^ permalink raw reply [flat|nested] 17+ messages in thread* Re: [PATCH RFC v3 8/8] mips: Use the common syscall table
2026-08-07 19:34 ` [PATCH RFC v3 8/8] mips: Use the common syscall table André Almeida
@ 2026-08-07 21:02 ` Arnd Bergmann
2026-08-10 13:20 ` André Almeida
0 siblings, 1 reply; 17+ messages in thread
From: Arnd Bergmann @ 2026-08-07 21:02 UTC (permalink / raw)
To: André Almeida, Thomas Gleixner, Nathan Chancellor, Masami Hiramatsu
Cc: linux-kernel, linux-kbuild, kernel-dev
On Fri, Aug 7, 2026, at 21:34, André Almeida wrote:
> Syscall numbers from 403 are shared with all architectures, so move the
> toolchain to use the common syscall table and remove duplicated code.
>
> The generated files are not exactly the same as before, but they have no
> functional changes:
>
> - for O32 ABI, the syscall table would have entries like
> __SYSCALL_WITH_COMPAT(403, sys_clock_gettime, sys_clock_gettime)
> which is equivalent to the new entry __SYSCALL(403, sys_clock_gettime)
>
> - for N32 ABI, the syscall table would have entries like
> __SYSCALL(413, compat_sys_pselect6_time64), which is equivalent to
> __SYSCALL_WITH_COMPAT(413, sys_pselect6, compat_sys_pselect6_time64)
> given the new __SYSCALL_WITH_COMPAT() definition for N32.
>
> The generated syscall table for N64 is exactly the same.
>
> Signed-off-by: André Almeida <andrealmeid@igalia.com>
> ---
> arch/mips/kernel/scall64-n32.S | 1 +
> arch/mips/kernel/syscalls/Makefile | 22 +++++++---
> arch/mips/kernel/syscalls/syscall_n32.tbl | 68 -------------------------------
> arch/mips/kernel/syscalls/syscall_n64.tbl | 48 ----------------------
> arch/mips/kernel/syscalls/syscall_o32.tbl | 68 -------------------------------
> 5 files changed, 18 insertions(+), 189 deletions(-)
I still wonder whether we should combine the n32 and n64 tables
here. Since the script can now deal with multiple input files,
the first 211 syscall numbers can be in a shared file, while
numbers 212 through 332 are always going to be different.
Alternatively, two the files could just be merged into one file
like
0 common read sys_read
1 common write sys_write
...
13 common rt_sigaction sys_rt_sigaction compat_sys_rt_sigaction
...
210 common remap_file_pages sys_remap_file_pages
211 common rt_sigreturn sys_rt_sigreturn
...
212 32 fcntl64 compat_sys_fcntl64
213 32 set_tid_address sys_set_tid_address
...
212 64 set_tid_address sys_set_tid_address
213 64 restart_syscall sys_restart_syscall
> -$(kapi)/unistd_nr_%.h: $(src)/syscall_%.tbl $(sysnr) FORCE
> +abis := common,__cln3
> +
> +abis_n32 := $(abis),32,n32
> +abis_o32 := $(abis),32,o32
> +abis_n64 := $(abis),64,n64
We should probably drop the custom ABI names here and just use
common/32/64 in the .tbl file. There was never a real need for
the special case here, and now it causes extra complexity.
Arnd
^ permalink raw reply [flat|nested] 17+ messages in thread* Re: [PATCH RFC v3 8/8] mips: Use the common syscall table
2026-08-07 21:02 ` Arnd Bergmann
@ 2026-08-10 13:20 ` André Almeida
0 siblings, 0 replies; 17+ messages in thread
From: André Almeida @ 2026-08-10 13:20 UTC (permalink / raw)
To: Arnd Bergmann
Cc: linux-kernel, Nathan Chancellor, Thomas Gleixner, linux-kbuild,
Masami Hiramatsu, kernel-dev
Em 07/08/2026 18:02, Arnd Bergmann escreveu:
> On Fri, Aug 7, 2026, at 21:34, André Almeida wrote:
>> Syscall numbers from 403 are shared with all architectures, so move the
>> toolchain to use the common syscall table and remove duplicated code.
>>
>> The generated files are not exactly the same as before, but they have no
>> functional changes:
>>
>> - for O32 ABI, the syscall table would have entries like
>> __SYSCALL_WITH_COMPAT(403, sys_clock_gettime, sys_clock_gettime)
>> which is equivalent to the new entry __SYSCALL(403, sys_clock_gettime)
>>
>> - for N32 ABI, the syscall table would have entries like
>> __SYSCALL(413, compat_sys_pselect6_time64), which is equivalent to
>> __SYSCALL_WITH_COMPAT(413, sys_pselect6, compat_sys_pselect6_time64)
>> given the new __SYSCALL_WITH_COMPAT() definition for N32.
>>
>> The generated syscall table for N64 is exactly the same.
>>
>> Signed-off-by: André Almeida <andrealmeid@igalia.com>
>> ---
>> arch/mips/kernel/scall64-n32.S | 1 +
>> arch/mips/kernel/syscalls/Makefile | 22 +++++++---
>> arch/mips/kernel/syscalls/syscall_n32.tbl | 68 -------------------------------
>> arch/mips/kernel/syscalls/syscall_n64.tbl | 48 ----------------------
>> arch/mips/kernel/syscalls/syscall_o32.tbl | 68 -------------------------------
>> 5 files changed, 18 insertions(+), 189 deletions(-)
>
> I still wonder whether we should combine the n32 and n64 tables
> here. Since the script can now deal with multiple input files,
> the first 211 syscall numbers can be in a shared file, while
> numbers 212 through 332 are always going to be different.
>
> Alternatively, two the files could just be merged into one file
> like
>
> 0 common read sys_read
> 1 common write sys_write
> ...
> 13 common rt_sigaction sys_rt_sigaction compat_sys_rt_sigaction
> ...
> 210 common remap_file_pages sys_remap_file_pages
> 211 common rt_sigreturn sys_rt_sigreturn
> ...
> 212 32 fcntl64 compat_sys_fcntl64
> 213 32 set_tid_address sys_set_tid_address
> ...
> 212 64 set_tid_address sys_set_tid_address
> 213 64 restart_syscall sys_restart_syscall
>
>
>> -$(kapi)/unistd_nr_%.h: $(src)/syscall_%.tbl $(sysnr) FORCE
>> +abis := common,__cln3
>> +
>> +abis_n32 := $(abis),32,n32
>> +abis_o32 := $(abis),32,o32
>> +abis_n64 := $(abis),64,n64
>
> We should probably drop the custom ABI names here and just use
> common/32/64 in the .tbl file. There was never a real need for
> the special case here, and now it causes extra complexity.
>
Ok! I like this ideas, I will prepare it for v4
^ permalink raw reply [flat|nested] 17+ messages in thread
* Re: [PATCH RFC v3 0/8] syscalls: Add a shared table for all archs
2026-08-07 19:34 [PATCH RFC v3 0/8] syscalls: Add a shared table for all archs André Almeida
` (7 preceding siblings ...)
2026-08-07 19:34 ` [PATCH RFC v3 8/8] mips: Use the common syscall table André Almeida
@ 2026-08-07 20:43 ` Arnd Bergmann
2026-08-10 13:25 ` André Almeida
8 siblings, 1 reply; 17+ messages in thread
From: Arnd Bergmann @ 2026-08-07 20:43 UTC (permalink / raw)
To: André Almeida, Thomas Gleixner, Nathan Chancellor, Masami Hiramatsu
Cc: linux-kernel, linux-kbuild, kernel-dev
On Fri, Aug 7, 2026, at 21:34, André Almeida wrote:
>
> There's already a "common" table shared with a bunch of archs at
> `scripts/syscall.tbl`, but due to historical reasons some archs will never be
> able to move to this table and share all the numbers.
>
> The generic table starts from 403 (clock_gettime64), the first common syscall.
>
> I've compile tested for arm32, arm64, s390, mips and sparc, by comparing the
> syscalls_*.h and unistd_*.h files generated before and after this patchset. For
> most of cases the files are identical, for the few cases that they are not,
> there's a note in the commit explaining why they are equivalent.
Any reason you still didn't include the alpha version? As I mentioned
before, I think this is the most important one to be in the initial
set, to ensure the script can deal with the having two separate offsets
without becoming too messy, or needing a rewrite to take multiple passes.
Arnd
^ permalink raw reply [flat|nested] 17+ messages in thread* Re: [PATCH RFC v3 0/8] syscalls: Add a shared table for all archs
2026-08-07 20:43 ` [PATCH RFC v3 0/8] syscalls: Add a shared table for all archs Arnd Bergmann
@ 2026-08-10 13:25 ` André Almeida
2026-08-10 14:18 ` Arnd Bergmann
0 siblings, 1 reply; 17+ messages in thread
From: André Almeida @ 2026-08-10 13:25 UTC (permalink / raw)
To: Arnd Bergmann
Cc: linux-kernel, Masami Hiramatsu, Nathan Chancellor,
Thomas Gleixner, linux-kbuild, kernel-dev
Em 07/08/2026 17:43, Arnd Bergmann escreveu:
> On Fri, Aug 7, 2026, at 21:34, André Almeida wrote:
>>
>> There's already a "common" table shared with a bunch of archs at
>> `scripts/syscall.tbl`, but due to historical reasons some archs will never be
>> able to move to this table and share all the numbers.
>>
>> The generic table starts from 403 (clock_gettime64), the first common syscall.
>>
>> I've compile tested for arm32, arm64, s390, mips and sparc, by comparing the
>> syscalls_*.h and unistd_*.h files generated before and after this patchset. For
>> most of cases the files are identical, for the few cases that they are not,
>> there's a note in the commit explaining why they are equivalent.
>
> Any reason you still didn't include the alpha version? As I mentioned
> before, I think this is the most important one to be in the initial
> set, to ensure the script can deal with the having two separate offsets
> without becoming too messy, or needing a rewrite to take multiple passes.
>
> Arnd
One reason that I didn't include alpha on this version yet (but forgot
to explain in the cover letter) is that alpha is the only arch that
doesn't implement `set_mempolicy_home_node`, and the commit message that
creates this syscall doesn't help to explain why. But for now I think I
can do something similar to `memfd_secret` and add a new ABI or use the
stub implementation.
^ permalink raw reply [flat|nested] 17+ messages in thread
* Re: [PATCH RFC v3 0/8] syscalls: Add a shared table for all archs
2026-08-10 13:25 ` André Almeida
@ 2026-08-10 14:18 ` Arnd Bergmann
0 siblings, 0 replies; 17+ messages in thread
From: Arnd Bergmann @ 2026-08-10 14:18 UTC (permalink / raw)
To: André Almeida
Cc: linux-kernel, Masami Hiramatsu, Nathan Chancellor,
Thomas Gleixner, linux-kbuild, kernel-dev
On Mon, Aug 10, 2026, at 15:25, André Almeida wrote:
> Em 07/08/2026 17:43, Arnd Bergmann escreveu:
>> On Fri, Aug 7, 2026, at 21:34, André Almeida wrote:
>>>
>>> There's already a "common" table shared with a bunch of archs at
>>> `scripts/syscall.tbl`, but due to historical reasons some archs will never be
>>> able to move to this table and share all the numbers.
>>>
>>> The generic table starts from 403 (clock_gettime64), the first common syscall.
>>>
>>> I've compile tested for arm32, arm64, s390, mips and sparc, by comparing the
>>> syscalls_*.h and unistd_*.h files generated before and after this patchset. For
>>> most of cases the files are identical, for the few cases that they are not,
>>> there's a note in the commit explaining why they are equivalent.
>>
>> Any reason you still didn't include the alpha version? As I mentioned
>> before, I think this is the most important one to be in the initial
>> set, to ensure the script can deal with the having two separate offsets
>> without becoming too messy, or needing a rewrite to take multiple passes.
>
> One reason that I didn't include alpha on this version yet (but forgot
> to explain in the cover letter) is that alpha is the only arch that
> doesn't implement `set_mempolicy_home_node`, and the commit message that
> creates this syscall doesn't help to explain why. But for now I think I
> can do something similar to `memfd_secret` and add a new ABI or use the
> stub implementation.
No, I think we can just keep the normal table here. There is
already a definition for the syscall macro on alpha, just the
entry point is set to sys_ni_syscall. On alpha, CONFIG_NUMA
is always disabled as of fdb7d9b7acd0 ("alpha: remove DISCONTIGMEM
and NUMA"), so sys_mempolicy_home_node always points to
sys_ni_syscall through the kernel/sys_ni.c redirect.
I would split that change out to a separate commit, but that
patch is clearly only cosmetic here.
We probably want the same thing for memfd_secret() as well, and
always define that for all architectures, with the kernel/sys_ni.c
file taking care of the CONFIG_SECRETMEM=n builds, but that is
not entirely a nop, since it adds a __NR_memfd_seret macro
on architectures that don't already have it.
Arnd
^ permalink raw reply [flat|nested] 17+ messages in thread