From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <dev-bounces@dpdk.org>
Received: from dpdk.org (dpdk.org [92.243.14.124])
	by dpdk.space (Postfix) with ESMTP id C581BA00E6
	for <public@inbox.dpdk.org>; Sat, 18 May 2019 03:34:03 +0200 (CEST)
Received: from [92.243.14.124] (localhost [127.0.0.1])
	by dpdk.org (Postfix) with ESMTP id 4AC2B2BA5;
	Sat, 18 May 2019 03:34:02 +0200 (CEST)
Received: by dpdk.org (Postfix, from userid 33)
 id 46A7E2BA5; Sat, 18 May 2019 03:34:01 +0200 (CEST)
From: bugzilla@dpdk.org
To: dev@dpdk.org
Date: Sat, 18 May 2019 01:34:01 +0000
X-Bugzilla-Reason: AssignedTo
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: DPDK
X-Bugzilla-Component: testpmd
X-Bugzilla-Version: 19.08
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: michel@digirati.com.br
X-Bugzilla-Status: CONFIRMED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: Normal
X-Bugzilla-Assigned-To: dev@dpdk.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform
 op_sys bug_status bug_severity priority component assigned_to reporter
 target_milestone
Message-ID: <bug-281-3@http.bugs.dpdk.org/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://bugs.dpdk.org/
Auto-Submitted: auto-generated
X-Auto-Response-Suppress: All
MIME-Version: 1.0
Subject: [dpdk-dev] [Bug 281] BPF: Linking error in librte_bpf
X-BeenThere: dev@dpdk.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: DPDK patches and discussions <dev.dpdk.org>
List-Unsubscribe: <https://mails.dpdk.org/options/dev>,
 <mailto:dev-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://mails.dpdk.org/archives/dev/>
List-Post: <mailto:dev@dpdk.org>
List-Help: <mailto:dev-request@dpdk.org?subject=help>
List-Subscribe: <https://mails.dpdk.org/listinfo/dev>,
 <mailto:dev-request@dpdk.org?subject=subscribe>
Errors-To: dev-bounces@dpdk.org
Sender: "dev" <dev-bounces@dpdk.org>

https://bugs.dpdk.org/show_bug.cgi?id=3D281

            Bug ID: 281
           Summary: BPF: Linking error in librte_bpf
           Product: DPDK
           Version: 19.08
          Hardware: x86
                OS: Linux
            Status: CONFIRMED
          Severity: normal
          Priority: Normal
         Component: testpmd
          Assignee: dev@dpdk.org
          Reporter: michel@digirati.com.br
  Target Milestone: ---

I've downloaded DPDK from the git repository (19.08-rc0), installed libelf =
and
libelf-dev, enabled CONFIG_RTE_LIBRTE_BPF_ELF in config/common_base, made
config for target "x86_64-native-linuxapp-gcc", and built it. My machine is
running Ubuntu 18.04.1. Then, I ran the following commands:

$ cd $RTE_SDK/$RTE_TARGET/app/

$ sudo ./testpmd -l 0-3 -n 4 -- -i --portmask=3D0x1 --nb-cores=3D2
[INITIALIZATION MESSAGES]

testpmd> bpf-load rx 0 0 - /home/michel/git/latest_dpdk/examples/bpf/t1.o
rte_bpf_elf_load() is not supported with current config
rebuild with libelf installed
-95:Operation not supported

Investigating this issue, I've found that it is a linking error since funct=
ion
rte_bpf_elf_load() is being mapped to bpf_load.o instead of bpf_load_elf.o:

$ grep ^rte_bpf_elf_load x86_64-native-linuxapp-gcc/app/testpmd.map=20
rte_bpf_elf_load=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20=20=20
/home/michel/test_latest_dpdk/dpdk/x86_64-native-linuxapp-gcc/lib/librte_bp=
f.a(bpf_load.o)

I also noticed that file bpf_load_elf.o after file bpf_load.o in librte_bpf=
.a:

$ ar t build/lib/librte_bpf.a
bpf.o
bpf_exec.o
bpf_load.o
bpf_pkt.o
bpf_validate.o
bpf_load_elf.o
bpf_jit_x86.o

--=20
You are receiving this mail because:
You are the assignee for the bug.=