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=-17.4 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT, USER_IN_DEF_DKIM_WL 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 3E551C433E0 for ; Thu, 4 Jun 2020 14:56:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 136E2207DF for ; Thu, 4 Jun 2020 14:56:53 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="tFAsnU+f" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729168AbgFDO4w (ORCPT ); Thu, 4 Jun 2020 10:56:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57694 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729107AbgFDO4t (ORCPT ); Thu, 4 Jun 2020 10:56:49 -0400 Received: from mail-yb1-xb4a.google.com (mail-yb1-xb4a.google.com [IPv6:2607:f8b0:4864:20::b4a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 249C5C08C5C0 for ; Thu, 4 Jun 2020 07:56:49 -0700 (PDT) Received: by mail-yb1-xb4a.google.com with SMTP id a188so1740745ybg.20 for ; Thu, 04 Jun 2020 07:56:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=8zjrUygx4E8TnS8rYes620O5p8GaLeCkMw8lBo+Hhy8=; b=tFAsnU+f6zmpQj5uCOo2tgoFCj1cKGOkHDfZCougB7BkXJlUMDu6o6kXOIuUyAgFwt eCcvBREPGyzbeN5z9ZoXM9lKz16S6X1JoYeDuNwxt24M0npepVobQzMXtnjlMsxUOLav tDJTKwQA0kz6hh0HgAGOTWjpzOFCXjaY0tVfEoLaFEOBfLSrkVIJPlJiBDn7wuOPcKxR 7mk+WPHVHp0RY9qlFYk4vaT5K02+JTwrkp5nLl8az3UdtM5NmXxrKCkozc+665ZGCiUq BnqrzZL6BGCk3GrxBzPDFgXgNsf6XpPmOdFXwgcByDMC2KcbRF5KpLZ0OW056g7u+m8s iw4w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=8zjrUygx4E8TnS8rYes620O5p8GaLeCkMw8lBo+Hhy8=; b=ln0uXNOPQSq5aFJEsgoZEFahuVO0YbaWR8RTh5YXhLZz4zC+25u4herroxU/tH9gC6 9dbcRdrypYmhy7XTUUn5FHDSo6WK8BTAZ0t+KrDVVfLX+/Aq5tAZRBlBEeKoNumwFhKz qBWLsAfTEvtqKPxtYzoxBcWwL1rh6+X5bxzgQnaHHXq9W1SK5YDBmrJ9fs3WcDzrU7lx 1A5wc8r/XpnXTi4fzmxxoaffGAgpjFSbgEr7ZaCW6y663WkVxfQKJYzslO3LKxcl+1FW Qjf3k8IOry/3WRh/bglai/NPwTvw9oLGkUKXvsGsFjBkIElV9mgkDg0yUI90oignWlCE 15ng== X-Gm-Message-State: AOAM5305x1kClgprLRnlY3WzTpMBd8cNotcf8AXIcuWh1X1h9KeiD5Y5 FAhN4yCm6OaPc6+ohrxLNBmNNbRq3w== X-Google-Smtp-Source: ABdhPJwJjDn8P81owhHhwSX0cSGD7FNerNcC0uJMx1RQwTHkQynRrffPGQM9PdEtQmNjBOrHbJ4dB+87+w== X-Received: by 2002:a25:6f44:: with SMTP id k65mr9347038ybc.101.1591282608295; Thu, 04 Jun 2020 07:56:48 -0700 (PDT) Date: Thu, 4 Jun 2020 16:56:35 +0200 In-Reply-To: <20200604145635.21565-1-elver@google.com> Message-Id: <20200604145635.21565-2-elver@google.com> Mime-Version: 1.0 References: <20200604145635.21565-1-elver@google.com> X-Mailer: git-send-email 2.27.0.rc2.251.g90737beb825-goog Subject: [PATCH v2 2/2] kcov: Pass -fno-stack-protector with Clang From: Marco Elver To: elver@google.com Cc: peterz@infradead.org, bp@alien8.de, tglx@linutronix.de, mingo@kernel.org, clang-built-linux@googlegroups.com, paulmck@kernel.org, dvyukov@google.com, glider@google.com, andreyknvl@google.com, kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org, x86@kernel.org Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org For Clang, correctly pass -fno-stack-protector via a separate cc-option, as -fno-conserve-stack does not exist with Clang. Signed-off-by: Marco Elver --- kernel/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/Makefile b/kernel/Makefile index ce8716a04d0e..82153c47d2a6 100644 --- a/kernel/Makefile +++ b/kernel/Makefile @@ -35,7 +35,7 @@ KCOV_INSTRUMENT_stacktrace.o := n KCOV_INSTRUMENT_kcov.o := n KASAN_SANITIZE_kcov.o := n KCSAN_SANITIZE_kcov.o := n -CFLAGS_kcov.o := $(call cc-option, -fno-conserve-stack -fno-stack-protector) +CFLAGS_kcov.o := $(call cc-option, -fno-conserve-stack) $(call cc-option, -fno-stack-protector) # cond_syscall is currently not LTO compatible CFLAGS_sys_ni.o = $(DISABLE_LTO) -- 2.27.0.rc2.251.g90737beb825-goog