From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S1755039AbcIAUzW (ORCPT <rfc822;w@1wt.eu>);
        Thu, 1 Sep 2016 16:55:22 -0400
Received: from smtprelay.synopsys.com ([198.182.47.9]:52590 "EHLO
        smtprelay.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S1751372AbcIAUzL (ORCPT
        <rfc822;linux-kernel@vger.kernel.org>);
        Thu, 1 Sep 2016 16:55:11 -0400
Subject: Re: [PATCH] perf tools: Fix static building
To: Jiri Olsa <jolsa@redhat.com>,
        Alexey Brodkin <Alexey.Brodkin@synopsys.com>
References: <1471887222-26270-1-git-send-email-abrodkin@synopsys.com>
 <20160831072128.GB4740@krava>
CC: <linux-kernel@vger.kernel.org>, <linux-snps-arc@lists.infradead.org>,
        Arnaldo Carvalho de Melo <acme@redhat.com>,
        Vineet Gupta <Vineet.Gupta1@synopsys.com>,
        Wang Nan <wangnan0@huawei.com>, Jiri Olsa <jolsa@kernel.org>,
        He Kuang <hekuang@huawei.com>,
        Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>,
        Namhyung Kim <namhyung@kernel.org>,
        Peter Zijlstra <a.p.zijlstra@chello.nl>, Zefan Li <lizefan@huawei.com>,
        <pi3orama@163.com>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.arc
From: Vineet Gupta <Vineet.Gupta1@synopsys.com>
Message-ID: <8deeb70b-6fe8-32c5-9f6f-65b2d6bd70eb@synopsys.com>
Date: Thu, 1 Sep 2016 11:28:29 -0700
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101
 Thunderbird/45.2.0
MIME-Version: 1.0
In-Reply-To: <20160831072128.GB4740@krava>
Content-Type: text/plain; charset="windows-1252"
Content-Transfer-Encoding: 7bit
X-Originating-IP: [10.9.130.78]
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On 08/31/2016 12:21 AM, Jiri Olsa wrote:
> On Mon, Aug 22, 2016 at 08:33:42PM +0300, Alexey Brodkin wrote:
>> With commit e3d09ec8126f ("tools lib traceevent: Export dynamic symbols
>> used by traceevent plugins") we started to add "--dynamic-list" in
>> LDFLAGS. One side-effect of that was inability to build really
>> statically-linked perf.
> 
> IIRC --dynamic-list forces perf to exports some symbols to
> be used by plugins.. don't see this breaking static build
> 
> also it's working properly for me:
> 
> [jolsa@krava perf]$ make LDFLAGS=-static
> ...
> [jolsa@krava perf]$ ldd ./perf
>         not a dynamic executable
> 
> unless I miss what you mean by 'really statically-linked' ;-)

Right - so I tried this as well and indeed I can confirm that it builds for me as
static. Atleast the build system doesn;t need changing as -sattic being propagated
to fianl link cmd.

There seems to be some weirdness with ARC tools: file reports

| ELF 32-bit LSB executable, *unknown arch 0xc3* version 1 (SYSV),
| dynamically linked, interpreter *empty*, for GNU/Linux 3.9.0, not stripped


That is clearly wrong !

And the static binary as expected doesn't seem to run on target - exits with -EACCESS.

-Vineet