On Thu, Oct 11, 2018 at 6:26 AM Firoz Khan firoz.khan@linaro.org wrote:
wire up perf_event_open, seccomp, pkey_mprotect, pkey_alloc, pkey_free, statx, io_pgetevents and rseq system calls
This require an architecture specific implementation as it not present now.
Signed-off-by: Firoz Khan firoz.khan@linaro.org
arch/ia64/kernel/syscalls/syscall.tbl | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)
diff --git a/arch/ia64/kernel/syscalls/syscall.tbl b/arch/ia64/kernel/syscalls/syscall.tbl index 6b64f60..1f42b60 100644 --- a/arch/ia64/kernel/syscalls/syscall.tbl +++ b/arch/ia64/kernel/syscalls/syscall.tbl @@ -335,3 +335,19 @@ 323 common copy_file_range sys_copy_file_range 324 common preadv2 sys_preadv2 325 common pwritev2 sys_pwritev2 +# perf_event_open requires an architecture specific implementation +326 common perf_event_open sys_perf_event_open +# seccomp requires an architecture specific implementation +327 common seccomp sys_seccomp
I don't think that's correct for these two. perf_event_open() of course requires 'perf' support that ia64 does not have, but at least seccomp should just work.
+# pkey_mprotect requires an architecture specific implementation +328 common pkey_mprotect sys_pkey_mprotect +# pkey_alloc requires an architecture specific implementation +329 common pkey_alloc sys_pkey_alloc +# pkey_free requires an architecture specific implementation +330 common pkey_free sys_pkey_free
One comment for all pkey calls would be sufficient. More importantly it requires hardware support that ia64 does not have AFAICT.
+# statx requires an architecture specific implementation +331 common statx sys_statx +# io_pgetevents requires an architecture specific implementation +332 common io_pgetevents sys_io_pgetevents
It certainly does not require any support from the architecture for these.
+# rseq requires an architecture specific implementation +333 common rseq sys_rseq
Maybe leave rseq and pkey_* commented out so we reserve the number but don't add it for real? Maybe the ia64 maintainers have a preference.
As asm-generic maintainer, I'd like to have the various asm/unistd.h headers be as similar as possible and at least reserve all the numbers even if we don't need the calls on a given architecture.
Arnd