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[23.128.96.18]) by mx.google.com with ESMTP id s10si4581941ejy.131.2021.03.04.04.14.48; Thu, 04 Mar 2021 04:15:10 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=I92sQ01D; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1580769AbhCCSe5 (ORCPT + 99 others); Wed, 3 Mar 2021 13:34:57 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:36990 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235811AbhCCRLf (ORCPT ); Wed, 3 Mar 2021 12:11:35 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1614791391; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Fou4hHS6Kj7Ef4XTjOdeYsbso55Xp/P4KKYS6738hXk=; b=I92sQ01DvtaSPxuCsgst1mSpXyevjmJUTgixs/9YsdonjOMTv5ehHMxo+Lw9OAJbTmszij +dvB+CS68SJ4xHQuhvCmsyiR4EUFpAiF/A7gETkPauVbcF1tvYO3rxv9BFa+VFbc+Uqeu/ ZHgIHTrd0ALMei7oGPbmSYAm7vfpR7s= Received: from mail-wm1-f70.google.com (mail-wm1-f70.google.com [209.85.128.70]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-459-pv9RVvP1P-mHslHbSH_dcw-1; Wed, 03 Mar 2021 12:09:49 -0500 X-MC-Unique: pv9RVvP1P-mHslHbSH_dcw-1 Received: by mail-wm1-f70.google.com with SMTP id u15so3280374wmj.2 for ; Wed, 03 Mar 2021 09:09:49 -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=Fou4hHS6Kj7Ef4XTjOdeYsbso55Xp/P4KKYS6738hXk=; b=qebWO7p9OnwwKySdZLoZ1VMQ/yfMkKj5TwcdrhiZhJXRIvLGWAaosAWUn9drzQsJET SAQuqWqiVK6TF9820pOrnmeX6hneb7Dd6fjQ55R0HFBHc7IQWkYiolpizNbtjQS797xF ZSnzHWCf+KYuJ2mwVa+rSwqOftxv9Wm4GSl80+W1odhgbYbh6qF/x/ciFvRXTZat22lL /g+hTIMqlVlaWmljUfZ7awXvVxnSjrZ4erHmc1hUMWc8Bcc59wVyaGSmm7+A5aqqqqkW V6dJXkwfb2VCGOAdNWlRLqWuRSLfPtoTyhx06TIT7PEs3aNtvkyJF3pf/RIFG5T8fyT5 +nhw== X-Gm-Message-State: AOAM5332s793EZxyFn3UIBLD8S0SkXErPdYDWkPvYeGW7brWKjeptCwl p8qw8nriUFyIiAruKuJ766px94TgH26mbRIv9KnBeO9GGaaRaY3yPogFun5DuX6YfFQplb9LmpZ RFIcn0S6zazQjtzdidQQu+CGAOFOCoEBQ39YlcGXb9ARsPcDQnsXdRSld9bWNOs70NyZmdTURba as X-Received: by 2002:adf:ef4c:: with SMTP id c12mr28585976wrp.112.1614791388291; Wed, 03 Mar 2021 09:09:48 -0800 (PST) X-Received: by 2002:adf:ef4c:: with SMTP id c12mr28585953wrp.112.1614791388102; Wed, 03 Mar 2021 09:09:48 -0800 (PST) Received: from redfedo.redhat.com ([2a01:cb14:499:3d00:cd47:f651:9d80:157a]) by smtp.gmail.com with ESMTPSA id r7sm33066226wre.25.2021.03.03.09.09.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 03 Mar 2021 09:09:47 -0800 (PST) From: Julien Thierry To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: catalin.marinas@arm.com, will@kernel.org, mark.rutland@arm.com, ardb@kernel.org, masahiroy@kernel.org, jpoimboe@redhat.com, peterz@infradead.org, ycote@redhat.com, Julien Thierry Subject: [RFC PATCH v2 07/13] objtool: arm64: Decode other system instructions Date: Wed, 3 Mar 2021 18:09:26 +0100 Message-Id: <20210303170932.1838634-8-jthierry@redhat.com> X-Mailer: git-send-email 2.25.4 In-Reply-To: <20210303170932.1838634-1-jthierry@redhat.com> References: <20210303170932.1838634-1-jthierry@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Decode ERET, BRK and NOPs Signed-off-by: Julien Thierry --- tools/objtool/arch/arm64/decode.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/tools/objtool/arch/arm64/decode.c b/tools/objtool/arch/arm64/decode.c index 983f16b8b2af..3008dcbb5e64 100644 --- a/tools/objtool/arch/arm64/decode.c +++ b/tools/objtool/arch/arm64/decode.c @@ -233,6 +233,13 @@ int arch_decode_instruction(const struct elf *elf, const struct section *sec, /* Remaining branch opcodes are conditional */ *type = INSN_JUMP_CONDITIONAL; *immediate = aarch64_get_branch_offset(insn); + } else if (aarch64_insn_is_eret(insn)) { + *type = INSN_CONTEXT_SWITCH; + } else if (aarch64_insn_is_steppable_hint(insn)) { + *type = INSN_NOP; + } else if (aarch64_insn_is_brk(insn)) { + *immediate = aarch64_insn_decode_immediate(AARCH64_INSN_IMM_16, insn); + *type = INSN_BUG; } else { *type = INSN_OTHER; } -- 2.25.4