On 09/17/2018 01:46 PM, Bo YU wrote: > On Mon, Sep 17, 2018 at 11:57:12AM +0200, Daniel Borkmann wrote: >> On 09/17/2018 10:23 AM, Bo YU wrote: >>> Hello, >>> I have followed the instructions from: >>> >>> https://cilium.readthedocs.io/en/latest/bpf/#bpftool >>> >>> to test xdp program. >>> But i can not enable elf support. >>> >>> ./configure --prefix=/usr >>> ```output >>> TC schedulers >>> ATM no >>> >>> libc has setns: yes >>> SELinux support: no >>> ELF support: no >>> libmnl support: yes >>> Berkeley DB: yes >>> need for strlcpy: yes >>> libcap support: yes >>> ``` >>> And i have installed libelf-dev : >>> ```output >>> sudo apt show libelf-dev >>> Package: libelf-dev >>> Version: 0.168-1 >>> Priority: optional >>> Section: libdevel >>> Source: elfutils >>> Maintainer: Kurt Roeckx <k...@roeckx.be> >>> Installed-Size: 353 kB >>> Depends: libelf1 (= 0.168-1) >>> Conflicts: libelfg0-dev >>> Homepage: https://sourceware.org/elfutils/ >>> Tag: devel::library, role::devel-lib >>> ``` >>> >>> And gcc version: >>> gcc version 6.3.0 20170516 (Debian 6.3.0-18+deb9u1) >>> >>> uname -a: >>> Linux debian 4.18.0-rc1+ #2 SMP Sun Jun 24 16:53:57 HKT 2018 x86_64 >>> GNU/Linux >>> >>> Any help is appreciate. >> >> Debian's official iproute2 packaging build says 'libelf-dev' [0], and having >> libelf-dev installed should work ... >> >> [...] >> Build-Depends: bison, >> debhelper (>= 10~), >> flex, >> iptables-dev, >> libatm1-dev, >> libcap-dev, >> libdb-dev, >> libelf-dev, >> libmnl-dev, >> libselinux1-dev, >> linux-libc-dev, >> pkg-config, >> po-debconf, >> zlib1g-dev, >> [...] >> >> Did you ran into this one perhaps [1]? Do you have zlib1g-dev installed? > Yes,You are right. I install zlib1g-dev with your help,iproute2 enable ELF > support. > ```output > ./configure --prefix=/usr > TC schedulers > ATM no > > libc has setns: yes > SELinux support: no > ELF support: yes > libmnl support: yes > Berkeley DB: yes > need for strlcpy: yes > libcap support: yes > > ``` > But there is no effect after [1], right? When i install libelf-dev,it should > install zlib1g-dev also. > > Is there any way to update the page [2]?
This bug should be Debian specific, so it would make sense to contact Debian developers or comment on [1] if it's still not resolved in current versions. > Thank you, Daniel > > [2] https://cilium.readthedocs.io/en/latest/bpf/#bpftool >> >> [0] https://salsa.debian.org/debian/iproute2/blob/master/debian/control >> [1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=885071
