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Since Linux v6.11, the syscalls of the architectures using the generic
syscall table are generated from a syscall.tbl file, and the syscall
ABIs (i.e. syscall.tbl tags) enabled for each architecture are listed
in its arch/<arch>/kernel/Makefile.syscalls file.
arch-syscall-validate had these ABIs hardcoded, and it missed the
memfd_secret ABI added for loongarch64 by kernel commit abca6583a2aa
("LoongArch: Wire up memfd_secret system call", Linux v7.0), so
memfd_secret is missing from the loongarch64 syscall table.
Read the ABIs from Makefile.syscalls for aarch64, loongarch64, and
riscv64. This only changes the loongarch64 output, which now includes
memfd_secret.
The syscalls table was updated by running:
$ ./arch-syscall-validate -c syscalls.csv <kernel_directory>
with the same kernel version as before (v7.1-rc4), so the only change
(besides the date) is the addition of memfd_secret to loongarch64.
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
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Rebased; squashed the two commits for clarity
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memfd_secretwas wired up for loongarch64 in Linux v7.0 (kernel commit abca6583a2aa, "LoongArch: Wire up memfd_secret system call"), by addingsyscall_abis_64 += memfd_secretto arch/loongarch/kernel/Makefile.syscalls.arch-syscall-validatehas the syscall ABIs hardcoded for each architecture using the generic syscall table, so it missed this, andmemfd_secretis missing from the loongarch64 syscall table.This PR:
arch-syscall-validateread the ABIs fromMakefile.syscallsfor aarch64, loongarch64 and riscv64, rather than hardcoding them, so this does not happen again;syscalls.csv, using the same kernel version as before (v7.1-rc4), so the only change (besides the date) is the addition ofmemfd_secretto loongarch64.I checked that the kernel syscall dump (
arch-syscall-validate -s -a <arch>) is unchanged for aarch64 and riscv64 with Linux v6.10 (the pre-Makefile.syscallscode path), v6.11, v7.1-rc4 and v7.2, and that for loongarch64 the only addition ismemfd_secret,447(v7.1-rc4 and v7.2).I found this while comparing
syscalls.csvwith the syscalls-table data in #502. The two PRs touch the samesyscalls.csvline, so whichever is merged second needs a trivial rebase. After that, the loongarch64 kernel version formemfd_secretcan be filled in witharch-update-syscalls-csv.py(it should be v7.0).