From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 28137 invoked by alias); 8 Oct 2013 14:44:39 -0000 Mailing-List: contact binutils-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: binutils-owner@sourceware.org Received: (qmail 28124 invoked by uid 89); 8 Oct 2013 14:44:39 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-2.1 required=5.0 tests=AWL,BAYES_00,SPF_PASS autolearn=ham version=3.3.2 X-HELO: nat28.tlf.novell.com Received: from nat28.tlf.novell.com (HELO nat28.tlf.novell.com) (130.57.49.28) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES256-SHA encrypted) ESMTPS; Tue, 08 Oct 2013 14:44:38 +0000 Received: from EMEA1-MTA by nat28.tlf.novell.com with Novell_GroupWise; Tue, 08 Oct 2013 15:44:34 +0100 Message-Id: <5254367002000078000F9A61@nat28.tlf.novell.com> Date: Tue, 08 Oct 2013 14:44:00 -0000 From: "Jan Beulich" To: "H.J. Lu" Cc: , Subject: [PATCH 6/6] x86/MPX: bndmk, bndldx, and bndstx don't allow RIP-relative addressing References: <5254349502000078000F9A3D@nat28.tlf.novell.com> In-Reply-To: <5254349502000078000F9A3D@nat28.tlf.novell.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="=__Part34073F40.2__=" X-SW-Source: 2013-10/txt/msg00074.txt.bz2 This is a MIME message. If you are reading this text, you may want to consider changing to a mail reader or gateway that understands how to properly handle MIME multipart messages. --=__Part34073F40.2__= Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Content-length: 1162 gas/ 2013-10-08 Jan Beulich * tc-i386.c (i386_index_check): Reject RIP-relative addressing for bndmk, bndldx, and bndstx. Warn about register scaling by other than 1 for bndldx and bndstx. --- 2013-10-07/gas/config/tc-i386.c +++ 2013-10-07/gas/config/tc-i386.c @@ -8360,6 +8375,25 @@ bad_address: || i.index_reg->reg_num =3D=3D RegEiz)) || !i.index_reg->reg_type.bitfield.baseindex))) goto bad_address; + + /* bndmk, bndldx, and bndstx have special restrictions. */ + if (current_templates->start->base_opcode =3D=3D 0xf30f1b + || (current_templates->start->base_opcode & ~1) =3D=3D 0x0f1a) + { + /* They cannot use RIP-relative addressing. */ + if (i.base_reg + && i.base_reg->reg_num =3D=3D (addr_mode =3D=3D CODE_64BIT ? RegRip + : RegEip)) + { + as_bad (_("`%s' cannot be used here"), operand_string); + return 0; + } + + /* bndldx and bndstx ignore their scale factor. */ + if (current_templates->start->base_opcode !=3D 0xf30f1b + && i.log2_scale_factor) + as_warn (_("register scaling is being ignored here")); + } } else { --=__Part34073F40.2__= Content-Type: text/plain; name="binutils-mainline-x86-MPX-RIP-rel.patch" Content-Transfer-Encoding: quoted-printable Content-Disposition: attachment; filename="binutils-mainline-x86-MPX-RIP-rel.patch" Content-length: 1159 gas/ 2013-10-08 Jan Beulich * tc-i386.c (i386_index_check): Reject RIP-relative addressing for bndmk, bndldx, and bndstx. Warn about register scaling by other than 1 for bndldx and bndstx. --- 2013-10-07/gas/config/tc-i386.c +++ 2013-10-07/gas/config/tc-i386.c @@ -8360,6 +8375,25 @@ bad_address: || i.index_reg->reg_num =3D=3D RegEiz)) || !i.index_reg->reg_type.bitfield.baseindex))) goto bad_address; + + /* bndmk, bndldx, and bndstx have special restrictions. */ + if (current_templates->start->base_opcode =3D=3D 0xf30f1b + || (current_templates->start->base_opcode & ~1) =3D=3D 0x0f1a) + { + /* They cannot use RIP-relative addressing. */ + if (i.base_reg + && i.base_reg->reg_num =3D=3D (addr_mode =3D=3D CODE_64BIT ? RegRip + : RegEip)) + { + as_bad (_("`%s' cannot be used here"), operand_string); + return 0; + } + + /* bndldx and bndstx ignore their scale factor. */ + if (current_templates->start->base_opcode !=3D 0xf30f1b + && i.log2_scale_factor) + as_warn (_("register scaling is being ignored here")); + } } else { --=__Part34073F40.2__=--