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    Subject[PATCH v15 05/13] asm/syscall.h: add syscall_get_arch
    Adds a stub for a function that will return the AUDIT_ARCH_*
    value appropriate to the supplied task based on the system
    call convention.

    For audit's use, the value can generally be hard-coded at the
    audit-site. However, for other functionality not inlined into
    syscall entry/exit, this makes that information available.
    seccomp_filter is the first planned consumer and, as such,
    the comment indicates a tie to HAVE_ARCH_SECCOMP_FILTER. That
    is probably an unneeded detail.

    Acked-by: Serge Hallyn <>
    Suggested-by: Roland McGrath <>
    Signed-off-by: Will Drewry <>

    v14: rebase/nochanges
    v13: rebase on to 88ebdda6159ffc15699f204c33feb3e431bf9bdc
    v12: rebase on to linux-next
    v11: fixed improper return type
    v10: introduced
    include/asm-generic/syscall.h | 14 ++++++++++++++
    1 files changed, 14 insertions(+), 0 deletions(-)

    diff --git a/include/asm-generic/syscall.h b/include/asm-generic/syscall.h
    index 5c122ae..a2c13dc 100644
    --- a/include/asm-generic/syscall.h
    +++ b/include/asm-generic/syscall.h
    @@ -142,4 +142,18 @@ void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs,
    unsigned int i, unsigned int n,
    const unsigned long *args);

    + * syscall_get_arch - return the AUDIT_ARCH for the current system call
    + * @task: task of interest, must be in system call entry tracing
    + * @regs: task_pt_regs() of @task
    + *
    + * Returns the AUDIT_ARCH_* based on the system call convention in use.
    + *
    + * It's only valid to call this when @task is stopped on entry to a system
    + *
    + * Note, at present this function is only required with
    + */
    +int syscall_get_arch(struct task_struct *task, struct pt_regs *regs);
    #endif /* _ASM_SYSCALL_H */

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