[LTP] [PATCH 0/4] Automatically generate syscalls.h

[Andrea Cervesato]

On 9/24/24 15:16, Jan Stancek wrote:
> On Tue, Sep 24, 2024 at 10:46 AM Andrea Cervesato via ltp
> <ltp@lists.linux.it> wrote:
>> Hi!
>>
>> Please consider this patchset as a draft open for discussion.
> Have you compared old and new defines? Are there any differences
> (other than additions)?
>
Only additions, but this is a draft work and I'm searching for 
alternative ideas as well.
For example, the limitation of this approach is that syscalls.h has to 
be generated anyway.

At the same time, we have projects like 
https://github.com/hrw/syscalls-table (that inspired my script) 
providing python bindings and *maybe* it could be used to create a 
python script which generate .in files when they need to be updated.

Etc..

>> Andrea
>>
>> On 9/24/24 10:06, Andrea Cervesato wrote:
>>> The problem we have at the moment is that all syscalls input files must
>>> be changed by hand each time we need to test a new syscall. The idea is
>>> to simplify this process, providing a script that is able to read from
>>> kernel sources and to generate all syscalls files we need.
>>>
>>> This is done by the generate_syscalls.sh script that can be used as
>>> following:
>>>
>>> ./generate_syscalls.sh path/to/kernel/source path/to/syscalls.h
>>>
>>> This approach requires a certain type of attention, due to the fact that
>>> we need to generate syscalls.h at each kernel version, or when new
>>> syscalls have been added in the kernel.
>>>
>>> Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.com>
>>> ---
>>> Andrea Cervesato (4):
>>>         Rename syscalls order file to supported-arch.txt
>>>         Add script to generate syscalls.h
>>>         Deprecate old syscalls input files
>>>         Save syscalls.h inside repo
>>>
>>>    include/lapi/.gitignore                            |     1 -
>>>    include/lapi/syscalls.h                            | 34272 +++++++++++++++++++
>>>    include/lapi/syscalls/aarch64.in                   |   306 -
>>>    include/lapi/syscalls/arc.in                       |   325 -
>>>    include/lapi/syscalls/arm.in                       |   404 -
>>>    include/lapi/syscalls/blacklist-syscalls.txt       |     6 +
>>>    include/lapi/syscalls/generate_syscalls.sh         |   292 +
>>>    include/lapi/syscalls/hppa.in                      |    52 -
>>>    include/lapi/syscalls/i386.in                      |   439 -
>>>    include/lapi/syscalls/ia64.in                      |   956 +-
>>>    include/lapi/syscalls/loongarch.in                 |   310 -
>>>    include/lapi/syscalls/mips_n32.in                  |   379 -
>>>    include/lapi/syscalls/mips_n64.in                  |   355 -
>>>    include/lapi/syscalls/mips_o32.in                  |   425 -
>>>    include/lapi/syscalls/powerpc.in                   |   432 -
>>>    include/lapi/syscalls/powerpc64.in                 |   432 -
>>>    include/lapi/syscalls/regen.sh                     |   129 -
>>>    include/lapi/syscalls/s390.in                      |   419 -
>>>    include/lapi/syscalls/s390x.in                     |   367 -
>>>    include/lapi/syscalls/sh.in                        |   413 -
>>>    include/lapi/syscalls/sparc.in                     |   418 -
>>>    include/lapi/syscalls/sparc64.in                   |   383 -
>>>    include/lapi/syscalls/strip_syscall.awk            |    19 -
>>>    .../lapi/syscalls/{order => supported-arch.txt}    |     1 -
>>>    include/lapi/syscalls/x86_64.in                    |   396 -
>>>    25 files changed, 35174 insertions(+), 6757 deletions(-)
>>> ---
>>> base-commit: 968e6245d93bc91723e72086a71e6bc50f495d0b
>>> change-id: 20240923-generate_syscalls-780dc2227bdb
>>>
>>> Best regards,
>> --
>> Mailing list info: https://lists.linux.it/listinfo/ltp
>>