From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-20.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CFC23C433ED for ; Tue, 20 Apr 2021 10:49:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8F71F6135F for ; Tue, 20 Apr 2021 10:49:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233576AbhDTKtO (ORCPT ); Tue, 20 Apr 2021 06:49:14 -0400 Received: from Galois.linutronix.de ([193.142.43.55]:51988 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232040AbhDTKrf (ORCPT ); Tue, 20 Apr 2021 06:47:35 -0400 Date: Tue, 20 Apr 2021 10:47:02 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1618915622; h=from:from:sender:sender:reply-to: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=sToYEa7Wi9ew13TvKs+4LNfj+3pBZ3KSDf8hAHMAWp0=; b=s0RO1i1lEf4kZPXHvDwzXsxTl3F2G937Z6LMV8kTjf6xX8CY5G6nxfWuT45lsNd6g/w7N/ 2c6KaW+LJnlzNk+yx0R1dlhOAiTXJ0e9bp5B4uzwWw+VK+38nrnUcgXwGyKRlShJh2Jn3e QwRzY+Oe0upyEFU/ba8sVYx+b6lkQjJ/d3V2v5MgXdpmdsFkcBDGYpv+7QyE1u5rRvTUcE ggzWP6aPpSxA0mvLYdsWO+/3NGXGESNUC1Z2Xkst4PfilSQAwENWe1zVoCjQIW9VxvMGTc s5Vf4VA7fsyiTOEUiZjta6HWHdcFDHMQA4PFmzbX39ELIOHFx2Zrp2UciVZLTA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1618915622; h=from:from:sender:sender:reply-to: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=sToYEa7Wi9ew13TvKs+4LNfj+3pBZ3KSDf8hAHMAWp0=; b=/AuFiDaD/iPogVAWgY7KJg4GX1JBgmZd5o0cCOlg5YmUBOz2k4FCG6Gswbbhvf9oJFcQir LJS2D9ZMB76JuECA== From: "tip-bot2 for Josh Poimboeuf" Sender: tip-bot2@linutronix.de Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: objtool/core] x86/crypto/sha1_avx2: Standardize stack alignment prologue Cc: Josh Poimboeuf , Ard Biesheuvel , Sami Tolvanen , "Peter Zijlstra (Intel)" , Herbert Xu , x86@kernel.org, linux-kernel@vger.kernel.org In-Reply-To: References: MIME-Version: 1.0 Message-ID: <161891562230.29796.6626679200764483556.tip-bot2@tip-bot2> Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The following commit has been merged into the objtool/core branch of tip: Commit-ID: 20114c899cafa8313534a841cab0ab1f7ab09672 Gitweb: https://git.kernel.org/tip/20114c899cafa8313534a841cab0ab1f7ab09672 Author: Josh Poimboeuf AuthorDate: Wed, 24 Feb 2021 10:29:21 -06:00 Committer: Josh Poimboeuf CommitterDate: Mon, 19 Apr 2021 12:36:35 -05:00 x86/crypto/sha1_avx2: Standardize stack alignment prologue Use a more standard prologue for saving the stack pointer before realigning the stack. This enables ORC unwinding by allowing objtool to understand the stack realignment. Signed-off-by: Josh Poimboeuf Tested-by: Ard Biesheuvel Acked-by: Ard Biesheuvel Tested-by: Sami Tolvanen Acked-by: Peter Zijlstra (Intel) Acked-by: Herbert Xu Link: https://lore.kernel.org/r/fdaaf8670ed1f52f55ba9a6bbac98c1afddc1af6.1614182415.git.jpoimboe@redhat.com --- arch/x86/crypto/sha1_avx2_x86_64_asm.S | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/x86/crypto/sha1_avx2_x86_64_asm.S b/arch/x86/crypto/sha1_avx2_x86_64_asm.S index 1e594d6..5eed620 100644 --- a/arch/x86/crypto/sha1_avx2_x86_64_asm.S +++ b/arch/x86/crypto/sha1_avx2_x86_64_asm.S @@ -645,9 +645,9 @@ _loop3: RESERVE_STACK = (W_SIZE*4 + 8+24) /* Align stack */ - mov %rsp, %rbx + push %rbp + mov %rsp, %rbp and $~(0x20-1), %rsp - push %rbx sub $RESERVE_STACK, %rsp avx2_zeroupper @@ -665,8 +665,8 @@ _loop3: avx2_zeroupper - add $RESERVE_STACK, %rsp - pop %rsp + mov %rbp, %rsp + pop %rbp pop %r15 pop %r14