Messages in this thread | | | From | Andy Lutomirski <> | Date | Mon, 29 Aug 2016 16:55:27 -0700 | Subject | Re: [PATCH 1/2] tracing/syscalls: allow multiple syscall numbers per syscall |
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On Aug 29, 2016 11:30 AM, "Marcin Nowakowski" <marcin.nowakowski@imgtec.com> wrote: > > Syscall metadata makes an assumption that only a single syscall number > corresponds to a given method. This is true for most archs, but > can break tracing otherwise. > > For MIPS platforms, depending on the choice of supported ABIs, up to 3 > system call numbers can correspond to the same call - depending on which > ABI the userspace app uses.
MIPS isn't special here. x86 does the same thing. Why isn't this a problem on x86?
Also, you seem to be partially reinventing AUDIT_ARCH here. Can you use that and integrate with syscall_get_arch()?
--Andy
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