On Sun, Jan 12, 2014 at 05:20:03PM +0800, Qiaowei Ren wrote:
> This patch adds new fields about bound violation into siginfo
> structure. si_lower and si_upper are respectively lower bound
> and upper bound when bound violation is caused.
>
> These fields will be set in #BR exception handler by decoding
> the user instruction and constructing the faulting pointer.
> A userspace application can get violation address, lower bound
> and upper bound for bound violation from this new siginfo structure.
>
> Signed-off-by: Qiaowei Ren <[email protected]>
> ---
> arch/x86/include/asm/mpx.h | 39 +++++
> arch/x86/kernel/mpx.c | 289
> ++++++++++++++++++++++++++++++++++++
This thing looks like a partial duplication of functionality which we
already have - inat.*/insn.*, etc.
It would be cleaner to integrate the mpx pieces into the existing x86
insn analysis code and use it instead of growing your own, IMHO.
--
Regards/Gruss,
Boris.
Sent from a fat crate under my desk. Formatting is fine.
--
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
