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SubjectRe: [PATCH v7 0/5] parisc: system call table generation support
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On 14.11.2018 07:34, Firoz Khan wrote:
> The purpose of this patch series is, we can easily
> add/modify/delete system call table support by cha-
> nging entry in syscall.tbl file instead of manually
> changing many files. The other goal is to unify the
> system call table generation support implementation
> across all the architectures.
>
> The system call tables are in different format in
> all architecture. It will be difficult to manually
> add, modify or delete the system calls in the resp-
> ective files manually. To make it easy by keeping a
> script and which'll generate uapi header file and
> syscall table file.
>
> syscall.tbl contains the list of available system
> calls along with system call number and correspond-
> ing entry point. Add a new system call in this arch-
> itecture 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.
>
> ARM, s390 and x86 architecuture does exist the sim-
> ilar support. I leverage their implementation to
> come up with a generic solution.
>
> I have done the same support for work for alpha, ia64,
> m68k, microblaze, mips, powerpc, sh, sparc and xtensa.
> Below mentioned git repository contains more details
> about the workflow.
>
> https://github.com/frzkhn/system_call_table_generator/
>
> Finally, this is the ground work to solve the Y2038
> issue. We need to add two dozen of system calls to
> solve Y2038 issue. So this patch series will help to
> add new system calls easily by adding new entry in
> the syscall.tbl.
>
> changes since v6:
> - changed from generic-y to generated-y in Kbuild.
>
> changes since v5:
> - optimized/updated the syscall table generation
> scripts.
> - fixed all mixed indentation issues in syscall.tbl.
> - added "comments" in syscall_*.tbl.
>
> changes since v4:
> - optimized/updated the syscall table generation
> scripts.
> - removed __IGNORE entries which was added in v2
> to suppress the warning.
>
> changes since v3:
> - optimized/updated the syscall table generation
> scripts.
> - added missing new line.
>
> changes since v2:
> - updated the syscall.tbl file by including missed
> entries.
>
> changes since v1:
> - enclosed __NR_sycalls macro with __KERNEL__.
>
> Firoz Khan (5):
> parisc: move __IGNORE* entries to non uapi header
> parisc: add __NR_syscalls along with __NR_Linux_syscalls
> parisc: add system call table generation support
> parisc: generate uapi header and system call table files
> parisc: syscalls: ignore nfsservctl for other architectures

Firoz, you may add
Acked-by: Helge Deller <deller@gmx.de>
to the whole parisc series.

Thanks!
Helge



> arch/parisc/Makefile | 3 +
> arch/parisc/include/asm/Kbuild | 3 +
> arch/parisc/include/asm/unistd.h | 8 +
> arch/parisc/include/uapi/asm/Kbuild | 2 +
> arch/parisc/include/uapi/asm/unistd.h | 382 +------------------------
> arch/parisc/kernel/syscall.S | 11 +-
> arch/parisc/kernel/syscall_table.S | 459 ------------------------------
> arch/parisc/kernel/syscalls/Makefile | 57 ++++
> arch/parisc/kernel/syscalls/syscall.tbl | 369 ++++++++++++++++++++++++
> arch/parisc/kernel/syscalls/syscallhdr.sh | 36 +++
> arch/parisc/kernel/syscalls/syscalltbl.sh | 36 +++
> scripts/checksyscalls.sh | 1 +
> 12 files changed, 531 insertions(+), 836 deletions(-)
> delete mode 100644 arch/parisc/kernel/syscall_table.S
> create mode 100644 arch/parisc/kernel/syscalls/Makefile
> create mode 100644 arch/parisc/kernel/syscalls/syscall.tbl
> create mode 100644 arch/parisc/kernel/syscalls/syscallhdr.sh
> create mode 100644 arch/parisc/kernel/syscalls/syscalltbl.sh
>

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