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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 97A94C636D7 for ; Fri, 17 Feb 2023 17:37:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229934AbjBQRhe (ORCPT ); Fri, 17 Feb 2023 12:37:34 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39892 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229623AbjBQRhc (ORCPT ); Fri, 17 Feb 2023 12:37:32 -0500 Received: from mail-pf1-x433.google.com (mail-pf1-x433.google.com [IPv6:2607:f8b0:4864:20::433]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9899C72E0C for ; Fri, 17 Feb 2023 09:37:24 -0800 (PST) Received: by mail-pf1-x433.google.com with SMTP id cg26so931386pfb.5 for ; Fri, 17 Feb 2023 09:37:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=0mlKR2SiEJ9tOPTNmRsqma/dHgH/w4UzqWx3jVVxzeg=; b=migPS26i9ayo0dZyifkQsjJFRFjwczCfQxVsVdLlQAL+xJQYnT8f1P9sSl7YwpHeJO P6MKU4AZSEgHtpPHNLWEO0J4cF0yYhHfBuVZG4ME/Hpz3UPzTVKGYw/ED+SyAjIlldtU BGAvwwP2BXIXxUz8o+hi4YmOi4cELlPvSJvtwB+ng1WkSEquYRtr+8pWafc4BGUFx6FD i+uS5ybMOCaI16xcw07H7T+O6P7Ia7w8tp8zcyfZ9BjHKsXsZBH8cCpQ6eAlGYS5nLf+ VZOOz1JRAUod5NhxhBAblCkkmnc8vnPEt/EOK2lZo/9yAi7Em3lnBqUWovYOXMWBcSSw 0PQg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=0mlKR2SiEJ9tOPTNmRsqma/dHgH/w4UzqWx3jVVxzeg=; b=GP422hEHWnWPLJ51uzdXSGGlBSEBVb9JMhsX+IHOVHdFF7UsWyqizDZAwP+WbzXAQs i16ZUq0MhopxP2H2lg96fTnLfC1FyyYs8XmWGF4RGz8naVIv6B/yUq5P/EnGdI6ruzle yS7SjPivHmwg7zgqb97Msq4UZByZ4K5G/UCavIj234maarctVysocOFb1QR/gWBjO/kR AfO/gzOT3xDLNzZYXixFbI5cwkeihabVkMN+eX6QKdIY9B1ZLccYtbNVKaf9peoRsWxx 5tq9kdHTBW1QKclJcMoMVjnp/3uYXw0otiYdO0qKM98hU7XBwzIS3+fZgr9Nz2qqCjBb kHxA== X-Gm-Message-State: AO0yUKXT4M3C4gtICDIUyOsiqlP/49kkEneSKWb58b3MScVTRFMsk7Me IW9ygyS+rLC7Qq7b282wNBIv0w== X-Google-Smtp-Source: AK7set/ym8sElylcfRcqXuEurT6gudqqgiO6T1wua2i14AVZZXN7k9VYEpaEeb/jJEdmAggzjvJ53A== X-Received: by 2002:a62:140f:0:b0:5a8:5424:d13b with SMTP id 15-20020a62140f000000b005a85424d13bmr1712775pfu.21.1676655443710; Fri, 17 Feb 2023 09:37:23 -0800 (PST) Received: from localhost.localdomain ([124.123.168.102]) by smtp.gmail.com with ESMTPSA id m4-20020aa79004000000b0056be1581126sm3393702pfo.143.2023.02.17.09.37.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Feb 2023 09:37:22 -0800 (PST) From: Naresh Kamboju To: elver@google.com Cc: akpm@linux-foundation.org, andreyknvl@gmail.com, dvyukov@google.com, glider@google.com, jakub@redhat.com, kasan-dev@googlegroups.com, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-toolchains@vger.kernel.org, mingo@kernel.org, nathan@kernel.org, ndesaulniers@google.com, peterz@infradead.org, ryabinin.a.a@gmail.com, Linux Kernel Functional Testing , Naresh Kamboju Subject: [PATCH -tip v4 1/3] kasan: Emit different calls for instrumentable memintrinsics Date: Fri, 17 Feb 2023 23:07:13 +0530 Message-Id: <20230217173713.90899-1-naresh.kamboju@linaro.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230216234522.3757369-1-elver@google.com> References: <20230216234522.3757369-1-elver@google.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-toolchains@vger.kernel.org > Clang 15 provides an option to prefix memcpy/memset/memmove calls with > __asan_/__hwasan_ in instrumented functions: https://reviews.llvm.org/D122724 > GCC will add support in future: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108777 > Use it to regain KASAN instrumentation of memcpy/memset/memmove on > architectures that require noinstr to be really free from instrumented > mem*() functions (all GENERIC_ENTRY architectures). > Fixes: 69d4c0d32186 ("entry, kasan, x86: Disallow overriding mem*() functions") > Signed-off-by: Marco Elver > Acked-by: Peter Zijlstra (Intel) Tested-by: Linux Kernel Functional Testing Tested-by: Naresh Kamboju Tested Kunit tests with clang-15, clang-16 and gcc-12 the reported issues got fixed. ref: https://lkft.validation.linaro.org/scheduler/job/6172341#L618 https://lkft.validation.linaro.org/scheduler/job/6172351#L618 https://lkft.validation.linaro.org/scheduler/job/6172338#L618 https://lore.kernel.org/all/CA+G9fYvZqytp3gMnC4-no9EB=Jnzqmu44i8JQo6apiZat-xxPg@mail.gmail.com/ -- Linaro LKFT https://lkft.linaro.org