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 1028AC433EF for ; Tue, 30 Nov 2021 11:47:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241095AbhK3LvE (ORCPT ); Tue, 30 Nov 2021 06:51:04 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45330 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241254AbhK3Ltl (ORCPT ); Tue, 30 Nov 2021 06:49:41 -0500 Received: from mail-wr1-x44a.google.com (mail-wr1-x44a.google.com [IPv6:2a00:1450:4864:20::44a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 09889C0613D7 for ; Tue, 30 Nov 2021 03:45:58 -0800 (PST) Received: by mail-wr1-x44a.google.com with SMTP id u4-20020a5d4684000000b0017c8c1de97dso3521786wrq.16 for ; Tue, 30 Nov 2021 03:45:57 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=JzBhpw0Qm81Z9lbF5IGyZhQAb+5o04LDLkCFlxupKLc=; b=pHRgTgtBe9w8GJo+UVuCrCXkkBePrXHeJXXGSGxiMQTDZhPB1HMZjVhCQEHB+8iuxA QTqapU0TX6O4TE0Y48efyZW2bq1hF37Xt0PGzM68wPVdqNEwB+3nHHqWFUL1gWu3kHtR Cq7Wrdud5dEh12cWU90OhIU4V/9Q7ULAOS9mOORJ6Eqe+R8j1ryew/Yd+VDrcTllPVFh 5lcxmqYwyS4EYnDSPUY2x7vLF1W4hPQ8ICF36xbdENuMBTVVtdo+SbNEIlEehDKxtwYR kgzu3xNPjqGc6hHJvBg6+Ezt/2WHsUBVgd1XEwAmeXQPIFvn+uf/vjPzU0O+2NhHvmqd ksUQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=JzBhpw0Qm81Z9lbF5IGyZhQAb+5o04LDLkCFlxupKLc=; b=Kh/X4KGk4HdzJSLpJRQvVB1fxOYdQC4fLtiDvaysqguFANCH1n64E7SCR2EdeQl7Zh VRZhioAH2tGoLLgA40k7x26JoisL0bScU73zYOCm8A7sez/A6xZZFTkA5M8Jo+66Yzo4 c5fbuOjRrmSb4XWpXv7QP8u1/Jrjy27ZNdnfWQIHAe7SHdPhBj5gTiQIaiRtQM9STNLU H7ZGlcl+1VncRDrUmcU59J50I9d+nP8PnuoAX3lv0LMo+HDaQMmaVOIYLzKK3XWeSJ7t Q7uew2iz2UosyWGcbyKhSv5gM3QZaemHkMBcR4jDI5RnBYx361UY9ibZM2Bgxbo28hPU /uHQ== X-Gm-Message-State: AOAM5317+4Qea+fzEDzTwFMhIsW65zznnkIj+JJEpNadK2/X3j0v13CB DNggiY0/CxY9Q3wmb5uJ28BI4cWWCg== X-Google-Smtp-Source: ABdhPJyGlw39n0+Jfq+xh033MGOvVeVGOoalcV20EEznri+jie430fZfA9+7esf3Wo7SpGvol2V1AwHpQw== X-Received: from elver.muc.corp.google.com ([2a00:79e0:15:13:86b7:11e9:7797:99f0]) (user=elver job=sendgmr) by 2002:a7b:cc8f:: with SMTP id p15mr4408290wma.129.1638272756667; Tue, 30 Nov 2021 03:45:56 -0800 (PST) Date: Tue, 30 Nov 2021 12:44:30 +0100 In-Reply-To: <20211130114433.2580590-1-elver@google.com> Message-Id: <20211130114433.2580590-23-elver@google.com> Mime-Version: 1.0 References: <20211130114433.2580590-1-elver@google.com> X-Mailer: git-send-email 2.34.0.rc2.393.gf8c9666880-goog Subject: [PATCH v3 22/25] objtool, kcsan: Add memory barrier instrumentation to whitelist From: Marco Elver To: elver@google.com, "Paul E. McKenney" Cc: Alexander Potapenko , Boqun Feng , Borislav Petkov , Dmitry Vyukov , Ingo Molnar , Mark Rutland , Peter Zijlstra , Thomas Gleixner , Waiman Long , Will Deacon , kasan-dev@googlegroups.com, linux-arch@vger.kernel.org, linux-doc@vger.kernel.org, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, llvm@lists.linux.dev, x86@kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.org Adds KCSAN's memory barrier instrumentation to objtool's uaccess whitelist. Signed-off-by: Marco Elver --- tools/objtool/check.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tools/objtool/check.c b/tools/objtool/check.c index 21735829b860..61dfb66b30b6 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -849,6 +849,10 @@ static const char *uaccess_safe_builtin[] = { "__asan_report_store16_noabort", /* KCSAN */ "__kcsan_check_access", + "__kcsan_mb", + "__kcsan_wmb", + "__kcsan_rmb", + "__kcsan_release", "kcsan_found_watchpoint", "kcsan_setup_watchpoint", "kcsan_check_scoped_accesses", -- 2.34.0.rc2.393.gf8c9666880-goog