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Re: [PATCH v2] x86/MPX: fix address size handling
- From: "H.J. Lu" <hjl dot tools at gmail dot com>
- To: Jan Beulich <JBeulich at suse dot com>
- Cc: Binutils <binutils at sourceware dot org>
- Date: Thu, 30 Jun 2016 06:44:16 -0700
- Subject: Re: [PATCH v2] x86/MPX: fix address size handling
- Authentication-results: sourceware.org; auth=none
- References: <57753DBE02000078000FA214 at prv-mh dot provo dot novell dot com>
On Thu, Jun 30, 2016 at 6:41 AM, Jan Beulich <JBeulich@suse.com> wrote:
> While address overrides are ignored in 64-bit mode (and hence shouldn't
> really result in an error, but upon v1 converting this to a warning I
> was told otherwise), trying to use 16-bit addressing is documented to
> result in #UD, and hence the assembler should reject the attempt. (The
> added test case at once also checks that bndc{l,n,u} won't accept
> 16-bit register operands.)
>
> gas/
> 2016-06-30 Jan Beulich <jbeulich@suse.com>
>
> * tc-i386.c (md_assemble): Alter address size checking for MPX
> instructions.
>
> gas/testsuite/
> 2016-06-30 Jan Beulich <jbeulich@suse.com>
>
> * gas/i386/mpx-inval-2.s: New.
> * gas/i386/mpx-inval-2.l: New.
> * gas/i386/i386.exp: Run new test.
>
It is OK.
Thanks.
--
H.J.