On Wed, Oct 28, 2020 at 7:06 PM Hangbin Liu <haliu@xxxxxxxxxx> wrote: > > On Wed, Oct 28, 2020 at 05:02:34PM -0600, David Ahern wrote: > > fails to compile on Ubuntu 20.10: > > > > root@u2010-sfo3:~/iproute2.git# ./configure > > TC schedulers > > ATM yes > > IPT using xtables > > IPSET yes > > > > iptables modules directory: /usr/lib/x86_64-linux-gnu/xtables > > libc has setns: yes > > SELinux support: yes > > libbpf support: yes > > ELF support: yes > > libmnl support: yes > > Berkeley DB: no > > need for strlcpy: yes > > libcap support: yes > > > > root@u2010-sfo3:~/iproute2.git# make clean > > > > root@u2010-sfo3:~/iproute2.git# make -j 4 > > ... > > /usr/bin/ld: ../lib/libutil.a(bpf_libbpf.o): in function `load_bpf_object': > > bpf_libbpf.c:(.text+0x3cb): undefined reference to > > `bpf_program__section_name' > > /usr/bin/ld: bpf_libbpf.c:(.text+0x438): undefined reference to > > `bpf_program__section_name' > > /usr/bin/ld: bpf_libbpf.c:(.text+0x716): undefined reference to > > `bpf_program__section_name' > > collect2: error: ld returned 1 exit status > > make[1]: *** [Makefile:27: ip] Error 1 > > make[1]: *** Waiting for unfinished jobs.... > > make: *** [Makefile:64: all] Error 2 > > You need to update libbpf to latest version. Why not using libbpf from submodule? > > But this also remind me that I need to add bpf_program__section_name() to > configure checking. I will see if I missed other functions' checking. > > Thanks > Hangbin >
