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    SubjectRe: [PATCH 06/13] arc: define syscall_get_arch()
    On Fri, Nov 9, 2018 at 6:22 AM Alexey Brodkin
    <alexey.brodkin@synopsys.com> wrote:
    >
    > Hi Dmitry,
    >
    > On Fri, 2018-11-09 at 06:16 +0300, Dmitry V. Levin wrote:
    > > syscall_get_arch() is required to be implemented on all architectures
    > > that use tracehook_report_syscall_entry() in order to extend
    > > the generic ptrace API with PTRACE_GET_SYSCALL_INFO request.
    > >
    > > Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
    > > ---
    > > arch/arc/include/asm/syscall.h | 6 ++++++
    > > include/uapi/linux/audit.h | 1 +
    > > 2 files changed, 7 insertions(+)
    >
    > [snip]
    >
    > > diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h
    > > index 818ae690ab79..a7149ceb5b98 100644
    > > --- a/include/uapi/linux/audit.h
    > > +++ b/include/uapi/linux/audit.h
    > > @@ -375,6 +375,7 @@ enum {
    > >
    > > #define AUDIT_ARCH_AARCH64 (EM_AARCH64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
    > > #define AUDIT_ARCH_ALPHA (EM_ALPHA|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
    > > +#define AUDIT_ARCH_ARC (EM_ARC)
    >
    > Similarly here we need to have:
    > ---------------------------->8-----------------------------
    > +#define AUDIT_ARCH_ARC (EM_ARC|EM_ARCV2)
    > ---------------------------->8-----------------------------
    >

    Huh? How does the bitwise or of two ELF machine codes make any sense?

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