From: "Jan Beulich" <JBeulich@suse.com>
To: "H.J. Lu" <hjl.tools@gmail.com>
Cc: <kirill.yukhin@intel.com>,<binutils@sourceware.org>
Subject: [PATCH 3/6] x86/MPX: suppress base/index swapping in Intel mode for bndmk, bndldx, and bndstx
Date: Tue, 08 Oct 2013 14:42:00 -0000 [thread overview]
Message-ID: <525435E002000078000F9A55@nat28.tlf.novell.com> (raw)
In-Reply-To: <5254349502000078000F9A3D@nat28.tlf.novell.com>
[-- Attachment #1: Type: text/plain, Size: 820 bytes --]
bndmk, bndldx, and bndstx assign special meaning to base and index
registers, and hence silently swapping the registers should be
suppressed.
gas/
2013-10-08 Jan Beulich <jbeulich@suse.com>
* tc-i386.c (i386_intel_simplify_register): Suppress base/index
swapping for bndmk, bndldx, and bndstx.
--- 2013-10-07/gas/config/tc-i386-intel.c
+++ 2013-10-07/gas/config/tc-i386-intel.c
@@ -291,6 +291,8 @@ i386_intel_simplify_register (expression
else if (!intel_state.index)
{
if (intel_state.in_scale
+ || current_templates->start->base_opcode == 0xf30f1b /* bndmk */
+ || (current_templates->start->base_opcode & ~1) == 0x0f1a /* bnd{ld,st}x */
|| i386_regtab[reg_num].reg_type.bitfield.baseindex)
intel_state.index = i386_regtab + reg_num;
else
[-- Attachment #2: binutils-mainline-x86-MPX-intel-no-swap.patch --]
[-- Type: text/plain, Size: 814 bytes --]
bndmk, bndldx, and bndstx assign special meaning to base and index
registers, and hence silently swapping the registers should be
suppressed.
gas/
2013-10-08 Jan Beulich <jbeulich@suse.com>
* tc-i386.c (i386_intel_simplify_register): Suppress base/index
swapping for bndmk, bndldx, and bndstx.
--- 2013-10-07/gas/config/tc-i386-intel.c
+++ 2013-10-07/gas/config/tc-i386-intel.c
@@ -291,6 +291,8 @@ i386_intel_simplify_register (expression
else if (!intel_state.index)
{
if (intel_state.in_scale
+ || current_templates->start->base_opcode == 0xf30f1b /* bndmk */
+ || (current_templates->start->base_opcode & ~1) == 0x0f1a /* bnd{ld,st}x */
|| i386_regtab[reg_num].reg_type.bitfield.baseindex)
intel_state.index = i386_regtab + reg_num;
else
next prev parent reply other threads:[~2013-10-08 14:42 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-08 14:36 [PATCH 0/6] x86: various MPX fixes Jan Beulich
2013-10-08 14:41 ` [PATCH 2/6] x86/MPX: fix address size handling Jan Beulich
2013-10-08 15:15 ` H.J. Lu
2013-10-08 15:20 ` Jan Beulich
2013-10-08 15:32 ` H.J. Lu
2013-10-09 7:30 ` Jan Beulich
2013-10-09 15:45 ` H.J. Lu
2013-10-10 12:27 ` Jan Beulich
2013-10-10 15:18 ` H.J. Lu
2013-10-08 14:41 ` [PATCH 1/6] x86/MPX: testsuite adjustments Jan Beulich
2013-10-08 14:42 ` Jan Beulich [this message]
2013-10-08 15:16 ` [PATCH 3/6] x86/MPX: suppress base/index swapping in Intel mode for bndmk, bndldx, and bndstx H.J. Lu
2013-10-08 15:23 ` Jan Beulich
2013-10-08 15:34 ` H.J. Lu
2013-10-08 16:00 ` Jan Beulich
2013-10-08 16:19 ` H.J. Lu
2013-10-09 7:15 ` acceptance rules (was: Re: [PATCH 3/6] x86/MPX: suppress base/index swapping ...) Jan Beulich
2013-10-09 16:45 ` H.J. Lu
2013-10-08 14:43 ` [PATCH 5/6] x86/MPX: fix operand size handling Jan Beulich
2013-10-08 15:45 ` H.J. Lu
2013-10-09 7:36 ` Jan Beulich
2013-10-09 15:51 ` H.J. Lu
2013-10-10 13:14 ` Jan Beulich
2013-10-10 15:14 ` H.J. Lu
2013-10-12 15:58 ` H.J. Lu
2013-10-12 17:12 ` H.J. Lu
2013-10-08 14:43 ` [PATCH 4/6] x86/MPX: bndmk, bndldx, and bndstx only allow a memory operand Jan Beulich
2013-10-08 15:28 ` H.J. Lu
2013-10-09 7:24 ` Jan Beulich
2013-10-09 15:17 ` H.J. Lu
2013-10-08 14:44 ` [PATCH 6/6] x86/MPX: bndmk, bndldx, and bndstx don't allow RIP-relative addressing Jan Beulich
2013-10-08 16:13 ` H.J. Lu
2013-10-09 7:40 ` Jan Beulich
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=525435E002000078000F9A55@nat28.tlf.novell.com \
--to=jbeulich@suse.com \
--cc=binutils@sourceware.org \
--cc=hjl.tools@gmail.com \
--cc=kirill.yukhin@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).