| Message ID | 20190516103655.5509-10-raphael.gault@arm.com (mailing list archive) |
|---|---|
| State | RFC |
| Headers | show
Return-Path: <linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org> Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id EFA3E924 for <patchwork-linux-arm@patchwork.kernel.org>; Thu, 16 May 2019 10:39:28 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DD3102854F for <patchwork-linux-arm@patchwork.kernel.org>; Thu, 16 May 2019 10:39:28 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D140D28842; Thu, 16 May 2019 10:39:28 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 8787A2854F for <patchwork-linux-arm@patchwork.kernel.org>; Thu, 16 May 2019 10:39:28 +0000 (UTC) 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:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: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=xFfiD1hzi0boA9Fr08VXC0yOATr/uZ3ZBKNzvjasdWA=; b=L7l+5bZRifuMiOK1YAcV2m3qNN GsrjTY7QqeOWfxsV7G2DM0ttETgJWJSIF/OBYR6BpA1A/5100RpzZaslj3lcwFPRR03rFAOO45W2C pcGsf2o/9KyURQeoDcziSl2JSXAIPikRH/E3v1PV4Vul8t3noZB3CY12fzE3UYPd7+9hUqO1fFQYq JqYKpHimFaCXQGC0dz23yXh99j7CjzsK7rHeehG+OLe1DYaOcEceOGuxkwYb4TBM9Wcog1Qg1YRZo 7KNnA9AKx95Geo9wIckPy77nwX96B24Uqq8xBj25AoLk/8gKdgJLsFG0WlFxMo7s4dii3sPf5Q5MK Ru0G9HlA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hRDnF-00078e-PJ; Thu, 16 May 2019 10:39:21 +0000 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70] helo=foss.arm.com) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hRDmC-0005hl-T3 for linux-arm-kernel@lists.infradead.org; Thu, 16 May 2019 10:38:29 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id AE6DF1B4B; Thu, 16 May 2019 03:38:16 -0700 (PDT) Received: from e121650-lin.cambridge.arm.com (e121650-lin.cambridge.arm.com [10.1.196.108]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 322813F703; Thu, 16 May 2019 03:38:15 -0700 (PDT) From: Raphael Gault <raphael.gault@arm.com> To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [RFC 09/16] arm64: assembler: Add macro to annotate asm function having non standard stack-frame. Date: Thu, 16 May 2019 11:36:48 +0100 Message-Id: <20190516103655.5509-10-raphael.gault@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190516103655.5509-1-raphael.gault@arm.com> References: <20190516103655.5509-1-raphael.gault@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190516_033817_921155_BB27EC87 X-CRM114-Status: GOOD ( 10.42 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: <linux-arm-kernel.lists.infradead.org> List-Unsubscribe: <http://lists.infradead.org/mailman/options/linux-arm-kernel>, <mailto:linux-arm-kernel-request@lists.infradead.org?subject=unsubscribe> List-Archive: <http://lists.infradead.org/pipermail/linux-arm-kernel/> List-Post: <mailto:linux-arm-kernel@lists.infradead.org> List-Help: <mailto:linux-arm-kernel-request@lists.infradead.org?subject=help> List-Subscribe: <http://lists.infradead.org/mailman/listinfo/linux-arm-kernel>, <mailto:linux-arm-kernel-request@lists.infradead.org?subject=subscribe> Cc: julien.thierry@arm.com, peterz@infradead.org, catalin.marinas@arm.com, will.deacon@arm.com, Raphael Gault <raphael.gault@arm.com>, jpoimboe@redhat.com MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org> Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP |
| Series |
objtool: Add support for Arm64
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expand
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diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h index c5308d01e228..8948474a9bcb 100644 --- a/arch/arm64/include/asm/assembler.h +++ b/arch/arm64/include/asm/assembler.h @@ -760,4 +760,17 @@ USER(\label, ic ivau, \tmp2) // invalidate I line PoU .Lyield_out_\@ : .endm + /* + * This macro is the arm64 assembler equivalent of the + * macro STACK_FRAME_NON_STANDARD define at + * ~/include/linux/frame.h + */ + .macro asm_stack_frame_non_standard func +#ifdef CONFIG_STACK_VALIDATION + .pushsection ".discard.func_stack_frame_non_standard" + .8byte \func + .popsection +#endif + .endm + #endif /* __ASM_ASSEMBLER_H */
Some functions don't have standard stack-frames but are intended this way. In order for objtool to ignore those particular cases we add a macro that enables us to annotate the cases we chose to mark as particular. Signed-off-by: Raphael Gault <raphael.gault@arm.com> --- arch/arm64/include/asm/assembler.h | 13 +++++++++++++ 1 file changed, 13 insertions(+)