From patchwork Thu Jan 9 16:02:44 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julien Thierry X-Patchwork-Id: 11326139 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 534AE139A for ; Thu, 9 Jan 2020 16:17:30 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 160092072A for ; Thu, 9 Jan 2020 16:17:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="df/zhuUX"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="h1JHEEcM" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 160092072A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=VSd6v2XCL7tjAIUpojFe9tj7oEaJSCkG3u8y79n717U=; b=df/zhuUXAYgHtE 6wC9+Peg/4uJ79If3E40+pquugoSyL17Mv65CunnmiiYSeAiQYrdJizI1t2hTMY4oLmPiFjtHzxjU 5Iz3NO6QW92ODeYKpjMIVasGmtiz91/Hm3jFl3Vif7STrwZPeHTy2pPBQplaY9ecGW3EKe9FTQMM/ tByeYYurDoaAl70IJrXu8pZndvxUBBCqUQ/tfuLF138SWeux866e5Kwd4xF/14sYNvIb5C6hToZRk s5CdqHc1f9QUyQu2dDaFRnkToD4iToayU0WxGCZYBMeHWxp+3JjffUSPqMMdrAjpQzngnAdVfHKvj jgDnNmPsOviyljxAmNGg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1ipaUz-0003aQ-H6; Thu, 09 Jan 2020 16:17:29 +0000 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120] helo=us-smtp-1.mimecast.com) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1ipaM9-0001L2-W1 for linux-arm-kernel@lists.infradead.org; Thu, 09 Jan 2020 16:08:28 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1578586100; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=rFm9gf9gb1rpbh9IIFaCN3a2qwtakzanEH8ecK3aAqY=; b=h1JHEEcMsF9gx8FbMN2G3hleAqHgfyeg72D4L3ZvCYKBgLpZG+qyxbc/SmnaYFyNOG2O3M GZ7ATgwJ8UTXv/nFwy8ZhEC9pprPFI90c9cP5l46avsC5PHB7qOSRnoHv1GpgkrXxRPEhn CxOyECCLFpbtBxtw1fhjR1Pj3wEHZM0= Received: from mail-wm1-f69.google.com (mail-wm1-f69.google.com [209.85.128.69]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-40-Qe_-T9s9Oe-BaMHxBUsqxw-1; Thu, 09 Jan 2020 11:08:18 -0500 Received: by mail-wm1-f69.google.com with SMTP id b9so1097526wmj.6 for ; Thu, 09 Jan 2020 08:08:18 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=ctt7fi/3NhIYPlxgrIxpO4KG6ezkTHoGLojp3YwAvJc=; b=qI/lQ+vJDkq2SxAsgOVSyciz4q/JJ+d7jaKJTY5h/gXePw8rGilgesr0XxWjKrZTJe 75u3F5Q1JW++T2Yywy2bQau1zOZxN7X4/s9TezxnPysEq4WEiZlzZ7lMu9IpJGBaKFx0 NrPjvez5kSzHBhM0+qB5ySwBd5tYlBRrTzhxnbTQI+Td57s/1I2YHl7T8if2sN1cPQnU x483WEdIzxPPJBU0eJlaTlEbwbaaoXzjMdYbEgf23MLoppDGNehKGlu+uxV+DcyPvgDo PkerLjpcgKXAPXFzRMAACdNTY8EzHdXuq/fK9Ltga/zJwjY96ik6BlavjPACyhjWBoGG 7EZg== X-Gm-Message-State: APjAAAWRXdMNy8lqMYMV2/AbuX274d2dJbFTBfYt5gcdAVXcMLZwreBl s74J6qGJvhqUfzs2lpuTOjs+aqKTEZIqlTRKXDH/mKKrF+1/a/S3Qk0GVa7t9cdLzIGnMAsI+tW Ax3AclKq41v6OTX5hsDSetPqu8YhlYLjMITI= X-Received: by 2002:a05:600c:2488:: with SMTP id 8mr5704793wms.152.1578586097769; Thu, 09 Jan 2020 08:08:17 -0800 (PST) X-Google-Smtp-Source: APXvYqxjzv/MBj0UUOLxwAZL7QjHdlmjkQxcm6p51hFdYJfwpTI9BGX+m6/4LY2WFg1fDeMR4LNnNQ== X-Received: by 2002:a05:600c:2488:: with SMTP id 8mr5704783wms.152.1578586097594; Thu, 09 Jan 2020 08:08:17 -0800 (PST) Received: from redfedo.redhat.com (host81-140-166-164.range81-140.btcentralplus.com. [81.140.166.164]) by smtp.gmail.com with ESMTPSA id m10sm8562605wrx.19.2020.01.09.08.08.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 Jan 2020 08:08:16 -0800 (PST) From: Julien Thierry To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [RFC v5 41/57] objtool: arm64: Decode FP/SIMD data processing instructions Date: Thu, 9 Jan 2020 16:02:44 +0000 Message-Id: <20200109160300.26150-42-jthierry@redhat.com> X-Mailer: git-send-email 2.21.1 In-Reply-To: <20200109160300.26150-1-jthierry@redhat.com> References: <20200109160300.26150-1-jthierry@redhat.com> MIME-Version: 1.0 X-MC-Unique: Qe_-T9s9Oe-BaMHxBUsqxw-1 X-Mimecast-Spam-Score: 0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200109_080822_226362_66DFDD76 X-CRM114-Status: UNSURE ( 9.21 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [205.139.110.120 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.0 DKIMWL_WL_HIGH DKIMwl.org - Whitelisted High sender X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Julien Thierry , peterz@infradead.org, catalin.marinas@arm.com, raphael.gault@arm.com, jpoimboe@redhat.com, will@kernel.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org FP/SIMD data processing instructions cannot modify the stack or frame pointer. Simply acknowledge the corresponding opcodes are valid. Suggested-by: Raphael Gault Signed-off-by: Julien Thierry --- tools/objtool/arch/arm64/decode.c | 9 +++++++++ tools/objtool/arch/arm64/include/insn_decode.h | 4 ++++ 2 files changed, 13 insertions(+) diff --git a/tools/objtool/arch/arm64/decode.c b/tools/objtool/arch/arm64/decode.c index bb1ba3b0997f..d35c2b58d309 100644 --- a/tools/objtool/arch/arm64/decode.c +++ b/tools/objtool/arch/arm64/decode.c @@ -130,11 +130,13 @@ static arm_decode_class aarch64_insn_class_decode_table[NR_INSN_CLASS] = { [INSN_LD_ST_4] = arm_decode_ld_st, [INSN_DP_REG_5] = arm_decode_dp_reg, [INSN_LD_ST_6] = arm_decode_ld_st, + [INSN_DP_SIMD_7] = arm_decode_dp_simd, [0b1000 ... INSN_DP_IMM] = arm_decode_dp_imm, [0b1010 ... INSN_SYS_BRANCH] = arm_decode_br_sys, [INSN_LD_ST_C] = arm_decode_ld_st, [INSN_DP_REG_D] = arm_decode_dp_reg, [INSN_LD_ST_E] = arm_decode_ld_st, + [INSN_DP_SIMD_F] = arm_decode_dp_simd, }; /* @@ -2746,3 +2748,10 @@ int arm_decode_dp_reg_3src(u32 instr, enum insn_type *type, *type = INSN_OTHER; return 0; } + +int arm_decode_dp_simd(u32 instr, enum insn_type *type, + unsigned long *immediate, struct list_head *ops_list) +{ + *type = INSN_OTHER; + return 0; +} diff --git a/tools/objtool/arch/arm64/include/insn_decode.h b/tools/objtool/arch/arm64/include/insn_decode.h index 8fb2f2b7564f..2bff4d7da007 100644 --- a/tools/objtool/arch/arm64/include/insn_decode.h +++ b/tools/objtool/arch/arm64/include/insn_decode.h @@ -16,6 +16,8 @@ #define INSN_LD_ST_E 0b1110 //0bx1x0 #define INSN_DP_REG_5 0b0101 //0bx101 #define INSN_DP_REG_D 0b1101 //0bx101 +#define INSN_DP_SIMD_7 0b0111 //0bx111 +#define INSN_DP_SIMD_F 0b1111 //0bx111 #define NR_INSN_CLASS 16 #define INSN_CLASS(opcode) (((opcode) >> 25) & (NR_INSN_CLASS - 1)) @@ -47,6 +49,8 @@ int arm_decode_br_sys(u32 instr, enum insn_type *type, unsigned long *immediate, struct list_head *ops_list); int arm_decode_ld_st(u32 instr, enum insn_type *type, unsigned long *immediate, struct list_head *ops_list); +int arm_decode_dp_simd(u32 instr, enum insn_type *type, + unsigned long *immediate, struct list_head *ops_list); int arm_decode_unknown(u32 instr, enum insn_type *type, unsigned long *immediate, struct list_head *ops_list);