[LTP] [PATCH v7 0/4] Automatically generate syscalls.h

Andrea Cervesato
2024-10-31T11:57:59Z

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 patch set adds a new command inside the syscalls folder and
it refactors the previous regen.sh code.
The new way we have to generate the syscalls.h file is the following:

include/lapi/syscalls/generate_arch.sh path/to/kernel/source
include/lapi/syscalls/generate_syscalls.sh path/to/syscalls.h

Scripts are independent and they can be run separately.
generate_syscalls.sh is the equivalent of regen.sh, but its code has
been cleaned up.

Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.com>
---
Changes in v7:
- check for errors in generate_syscalls.sh
- add documentation
- validation: https://github.com/acerv/ltp/actions/runs/11611080151
- Link to v6: https://lore.kernel.org/r/20241031-generate_syscalls-v6-0-1ad86a33ce2d@suse.com

Changes in v6:
- aesthetic changes in the syscall generator
- fix fallback definitions in the syscalls.h file generator
- Link to v5: https://lore.kernel.org/r/20241030-generate_syscalls-v5-0-eed6a87dc787@suse.com

Changes in v5:
- license SPDX inside scripts files
- quote shell variables inside scripts
- some generic code cleanup
- Link to v4: https://lore.kernel.org/r/20241009-generate_syscalls-v4-0-5328a785bbad@suse.com

Changes in v4:
- remove blacklist file
- update syscalls files
- Link to v3: https://lore.kernel.org/r/20240930-generate_syscalls-v3-0-e56ede4bc7f5@suse.com

Changes in v3:
- fix generate_arch.sh to work properly for all architectures
- rename some arch .in files and handle renaming inside
generate_syscalls.sh using the right gcc directives
- Link to v2: https://lore.kernel.org/r/20240927-generate_syscalls-v2-0-108f5f2ad318@suse.com

Changes in v2:
- refactor regen.sh
- split syscalls.h and syscalls .in files creation
- updated syscalls .in files
- Link to v1: https://lore.kernel.org/r/20240924-generate_syscalls-v1-0-941507a9cdac@suse.com

---
Andrea Cervesato (4):
Refactor regen.sh script to generate syscalls
Add script to generate arch(s) dependant syscalls
Delete obsolete strip_syscall.awk file
Add documentation about syscalls.h generator

configure.ac | 2 +-
doc/developers/test_case_tutorial.rst | 27 +--
include/lapi/syscalls/{aarch64.in => arm64.in} | 0
include/lapi/syscalls/generate_arch.sh | 211 +++++++++++++++++++++
include/lapi/syscalls/generate_syscalls.sh | 109 +++++++++++
.../lapi/syscalls/{loongarch.in => loongarch64.in} | 0
include/lapi/syscalls/{mips_n64.in => mips64.in} | 0
.../lapi/syscalls/{mips_n32.in => mips64n32.in} | 0
include/lapi/syscalls/{mips_o32.in => mipso32.in} | 0
include/lapi/syscalls/{hppa.in => parisc.in} | 0
include/lapi/syscalls/regen.sh | 129 -------------
include/lapi/syscalls/strip_syscall.awk | 19 --
.../lapi/syscalls/{order => supported-arch.txt} | 12 +-
13 files changed, 341 insertions(+), 168 deletions(-)
---
base-commit: 84e77afb3acc4bc69c434c430cc1c1d000427921
change-id: 20240923-generate_syscalls-780dc2227bdb

Best regards,
--
Andrea Cervesato <andrea.cervesato@suse.com>