Messages in this thread | | | Date | Tue, 20 Nov 2018 12:07:41 -0600 | From | Josh Poimboeuf <> | Subject | Re: Cleaning up numbering for new x86 syscalls? |
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On Tue, Nov 20, 2018 at 07:23:09AM -0800, Andy Lutomirski wrote: > On Tue, Nov 20, 2018 at 1:03 AM Florian Weimer <fweimer@redhat.com> wrote: > > > > * Andy Lutomirski: > > > > > 5. Adjust the scripts so that we only have to wire up new syscalls > > > once. They'll have a nr above 1024, and they'll have the same nr on > > > all x86 variants. > > > > Is there a sufficiently sized gap on all other architectures as well? > > The restriction to the x86 variants seems arbitrary to me. > > > > Fair point. We have this shiny "generic" syscall list. Maybe we can > get x86 synced up with it for new syscalls.
I heard this discussed at Plumbers. There was a proposal to use the same syscall numbers across architectures. Also, when adding new generic syscalls, they want all arches to be wired up at the same time.
https://linuxplumbersconf.org/event/2/contributions/149/attachments/129/161/Ideas_to_improve_glibc_and_Kernel_interaction.pdf
Adding Adhemerval to CC.
-- Josh
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