Message ID | 20220623014917.199563-11-chenzhongjin@huawei.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
Return-Path: <linux-kbuild-owner@kernel.org> X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5CE66CCA480 for <linux-kbuild@archiver.kernel.org>; Thu, 23 Jun 2022 01:52:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1377534AbiFWBwN (ORCPT <rfc822;linux-kbuild@archiver.kernel.org>); Wed, 22 Jun 2022 21:52:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37250 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1377290AbiFWBvu (ORCPT <rfc822;linux-kbuild@vger.kernel.org>); Wed, 22 Jun 2022 21:51:50 -0400 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C268F43AE4; Wed, 22 Jun 2022 18:51:49 -0700 (PDT) Received: from dggpemm500022.china.huawei.com (unknown [172.30.72.57]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4LT38g4LkBzhYW9; Thu, 23 Jun 2022 09:49:39 +0800 (CST) Received: from dggpemm500013.china.huawei.com (7.185.36.172) by dggpemm500022.china.huawei.com (7.185.36.162) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Thu, 23 Jun 2022 09:51:47 +0800 Received: from ubuntu1804.huawei.com (10.67.175.36) by dggpemm500013.china.huawei.com (7.185.36.172) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Thu, 23 Jun 2022 09:51:47 +0800 From: Chen Zhongjin <chenzhongjin@huawei.com> To: <linux-kernel@vger.kernel.org>, <linux-arch@vger.kernel.org>, <linuxppc-dev@lists.ozlabs.org>, <linux-arm-kernel@lists.infradead.org>, <linux-kbuild@vger.kernel.org>, <live-patching@vger.kernel.org> CC: <jpoimboe@kernel.org>, <peterz@infradead.org>, <catalin.marinas@arm.com>, <will@kernel.org>, <masahiroy@kernel.org>, <michal.lkml@markovi.net>, <ndesaulniers@google.com>, <mark.rutland@arm.com>, <pasha.tatashin@soleen.com>, <broonie@kernel.org>, <chenzhongjin@huawei.com>, <rmk+kernel@armlinux.org.uk>, <madvenka@linux.microsoft.com>, <christophe.leroy@csgroup.eu>, <daniel.thompson@linaro.org> Subject: [PATCH v6 10/33] objtool: arm64: Handle supported relocations in alternatives Date: Thu, 23 Jun 2022 09:48:54 +0800 Message-ID: <20220623014917.199563-11-chenzhongjin@huawei.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220623014917.199563-1-chenzhongjin@huawei.com> References: <20220623014917.199563-1-chenzhongjin@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.67.175.36] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To dggpemm500013.china.huawei.com (7.185.36.172) X-CFilter-Loop: Reflected Precedence: bulk List-ID: <linux-kbuild.vger.kernel.org> X-Mailing-List: linux-kbuild@vger.kernel.org |
Series |
objtool: add base support for arm64
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expand
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diff --git a/tools/objtool/arch/arm64/special.c b/tools/objtool/arch/arm64/special.c index 45f283283091..a70b91e8bd7d 100644 --- a/tools/objtool/arch/arm64/special.c +++ b/tools/objtool/arch/arm64/special.c @@ -10,7 +10,11 @@ bool arch_support_alt_relocation(struct special_alt *special_alt, struct instruction *insn, struct reloc *reloc) { - return false; + u32 opcode = *(u32 *)(insn->sec->data->d_buf + insn->offset); + + return aarch64_insn_is_branch_imm(opcode) || + aarch64_insn_is_adrp(opcode) || + !aarch64_insn_uses_literal(opcode); }