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Makefile does not install libbpf libraries into local machine. #407
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If you build against the libbpf library in lib/, libxdp will be
statically linked against that library version, and you won't have to
copy it anywhere.
I would recommend linking against the system libbpf version instead of
messing around with hacking the Makefile to copy the libbpf library.
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So you are suggesting me to build my program against the libbpf from the system and libxdp library from the xdp-tools/lib/libxdp?. |
Jsingh ***@***.***> writes:
So you are suggesting me to build my program against the libbpf from
the system and libxdp library from the xdp-tools/lib/libxdp?.
Yes, as long as you are also linking libxdp against the system libbpf
(which the configure file should do by default), this will work just fine.
|
Alright, btw, do you have any references for the samples/bpf/Makefile to use libbpf from xdp-tools/ instead from (kernel-sources)/tools/lib/bpf/ ?. |
Jsingh ***@***.***> writes:
Alright, btw, do you have any references for the samples/bpf/Makefile
to use libbpf from xdp-tools/ instead from
(kernel-sources)/tools/lib/bpf/ ?.
I don't know if that is possible, but in general samples/bpf in the
kernel tree is unmaintained and slowly bitrotting. So I would not
suggest using it, really. What utility from there are you trying to use?
|
Basically, I want to use the libbpf and libxdp libraries from the xdp-tools/ in the samples/bpf/Makefile file. |
Jsingh ***@***.***> writes:
Basically, I want to use the libbpf and libxdp libraries from the
xdp-tools/ in the samples/bpf/Makefile file.
Yes, but why? Which files from samples/bpf do you want to make use of?
|
Sorry for the late reply. |
Problem statement:
The xdp-tools/Makefile does not install libbpf libraries into local machine.
However, it does install the libxdp libraries into the local machine.
Steps:
cd ../../../samples/bpf/xdp-tools/
$ FORCE_SUBDIR_LIBBPF=1 ./configure
$ make
$ sudo make install
I modified the Makefile in ..samples/bpf/ to incorporate the libbpf library from xdp-tools/lib/libbpf/src.
While I successfully built my program using the libbpf library generated under xdp-tools/lib/libbpf/src, I encountered runtime failures due to the program's dependence on the same library during runtime.
Consequently, I manually transferred all the libbpf libraries from the xdp-tools/lib/libbpf/src directory to the local machine, enabling my program to locate them at runtime.
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