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 31E2FC2D0DB for ; Mon, 27 Jan 2020 19:36:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 06ACE24682 for ; Mon, 27 Jan 2020 19:36:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="kq/LGvpR" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727964AbgA0TgZ (ORCPT ); Mon, 27 Jan 2020 14:36:25 -0500 Received: from mail-pl1-f202.google.com ([209.85.214.202]:43318 "EHLO mail-pl1-f202.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725990AbgA0TgY (ORCPT ); Mon, 27 Jan 2020 14:36:24 -0500 Received: by mail-pl1-f202.google.com with SMTP id n17so4303030plp.10 for ; Mon, 27 Jan 2020 11:36:24 -0800 (PST) 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=MBXtYUj1QxYipcDyqZexYNOHIwmMYcL9qVU9w76TqMU=; b=kq/LGvpRySXRu0yzwNcC9o5kvB/Lf3EYScRJ6TjobnkWY/KSMsX71QlvFbaUrcvNdo 4TgexVq0q81r+Xgp3UVJwsvgjPZJZfOT0/i6OVXMNdyBf+0uQWKenONfiKRj1Fss6TUH uwDT8piaaknCsIiJbuQsD2ibYnoPwH+ua7g4NIFN+B4RoH3urbqrk11neJCl+cSjEw31 lDIkR549+4xbzG68w/SuYa2PPrvpKuD4p/tzg5d+h4Ct+2mdRTZlZVpv85a4qOIY5R8F VklCupGL8s3FhI9JtzU/r/U/hwb3VjcPY/dG2CCsgHEr2z0BkYH6rjBGituOCbP170LT aKjQ== 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=MBXtYUj1QxYipcDyqZexYNOHIwmMYcL9qVU9w76TqMU=; b=NEDiBrOFC2zdRMUNXPEs7dSLl/ldryvcBL7PupCJ/Q0EDKlT9L5fa+CQr0OtFvmmQV ja0mc8+PFJkUO09OuafrYoSz9xQY3A+ZhFihTmfmDk30fQsmdMYx2v03xGtsPIkTrxDB PD6Mm5/2JR+wlV4BDlavbd7eK5QWg8gm2s+ySxCRrdrKekWNYeu54Oy8dd2RaLR7U8Ak /CfJlxuJ2rzhGt0tPchid8MwIEDoRjHCDqegXmZ/NoXKwOtyNdHtfOG0kjQtAeF78k88 vF4BJHFEdHcCdQyYWHrjwMHeUvVnJxGSni/uBM/Ts8+bdFnE6nJlOFihay86QwozYrZS JO/A== X-Gm-Message-State: APjAAAWNhZJMtp8MXwhnk/o+/bDNYJ5KZAspjNBJLSGk93MNewwrromp FD716mCmOrc1UEaojqth4PsjOnWOKW6WRLZxXE3wdQ== X-Google-Smtp-Source: APXvYqzw4bcDZfIlq+zGGc1Fi/VjEsM3ED5HMkJFARpf6yPisIbRpOks2FuWI9Odc+UqXEL26ieYokh9OM7CembMrnve0Q== X-Received: by 2002:a63:78c:: with SMTP id 134mr20129191pgh.279.1580153784147; Mon, 27 Jan 2020 11:36:24 -0800 (PST) Date: Mon, 27 Jan 2020 11:35:49 -0800 In-Reply-To: <20200127193549.187419-1-brendanhiggins@google.com> Message-Id: <20200127193549.187419-3-brendanhiggins@google.com> Mime-Version: 1.0 References: <20200127193549.187419-1-brendanhiggins@google.com> X-Mailer: git-send-email 2.25.0.341.g760bfbb309-goog Subject: [RFC v1 2/2] arch: um: turn BTF_TYPEINFO support off From: Brendan Higgins To: jdike@addtoit.com, richard@nod.at, anton.ivanov@cambridgegreys.com, akpm@linux-foundation.org, changbin.du@intel.com, yamada.masahiro@socionext.com, rdunlap@infradead.org, keescook@chromium.org, andriy.shevchenko@linux.intel.com Cc: linux-um@lists.infradead.org, linux-kernel@vger.kernel.org, davidgow@google.com, heidifahim@google.com, Brendan Higgins 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 Currently CONFIG_DEBUG_INFO_BTF=y doesn't work on UML: scripts/link-vmlinux.sh: line 106: 17463 Segmentation fault LLVM_OBJCOPY=${OBJCOPY} ${PAHOLE} -J ${1} objcopy: --change-section-vma .BTF=0x0000000000000000 never used objcopy: --change-section-lma .BTF=0x0000000000000000 never used objcopy: error: the input file '.btf.vmlinux.bin' is empty Failed to generate BTF for vmlinux Try to disable CONFIG_DEBUG_INFO_BTF make: *** [Makefile:1078: vmlinux] Error 1 So turn off ARCH_HAS_BTF_TYPEINFO support off for the UM architecture. Signed-off-by: Brendan Higgins --- arch/um/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/um/Kconfig b/arch/um/Kconfig index 0917f8443c285..53e13d8b210e0 100644 --- a/arch/um/Kconfig +++ b/arch/um/Kconfig @@ -6,6 +6,7 @@ config UML bool default y select ARCH_HAS_KCOV + select ARCH_NO_BTF_TYPEINFO select ARCH_NO_PREEMPT select HAVE_ARCH_AUDITSYSCALL select HAVE_ARCH_SECCOMP_FILTER -- 2.25.0.341.g760bfbb309-goog