| From: |
| Jiri Olsa <jolsa-AT-kernel.org> |
| To: |
| Arnaldo Carvalho de Melo <acme-AT-kernel.org> |
| Subject: |
| [PATCH 0/3] perf/bpftool: Allow to link libbpf dynamically |
| Date: |
| Wed, 27 Nov 2019 10:48:34 +0100 |
| Message-ID: |
| <20191127094837.4045-1-jolsa@kernel.org> |
| Cc: |
| lkml <linux-kernel-AT-vger.kernel.org>, netdev-AT-vger.kernel.org, bpf-AT-vger.kernel.org, Ingo Molnar <mingo-AT-kernel.org>, Namhyung Kim <namhyung-AT-kernel.org>, Alexander Shishkin <alexander.shishkin-AT-linux.intel.com>, Peter Zijlstra <a.p.zijlstra-AT-chello.nl>, Michael Petlan <mpetlan-AT-redhat.com>, =?UTF-8?q?Toke=20H=C3=B8iland-J=C3=B8rgensen?= <toke-AT-redhat.com>, Jesper Dangaard Brouer <brouer-AT-redhat.com>, Daniel Borkmann <daniel-AT-iogearbox.net>, Alexei Starovoitov <alexei.starovoitov-AT-gmail.com>, Martin KaFai Lau <kafai-AT-fb.com>, Song Liu <songliubraving-AT-fb.com>, Yonghong Song <yhs-AT-fb.com>, Andrii Nakryiko <andriin-AT-fb.com> |
| Archive-link: |
| Article |
hi,
adding support to link bpftool with libbpf dynamically,
and config change for perf.
It's now possible to use:
$ make -C tools/bpf/bpftool/ LIBBPF_DYNAMIC=1
which will detect libbpf devel package with needed version,
and if found, link it with bpftool.
It's possible to use arbitrary installed libbpf:
$ make -C tools/bpf/bpftool/ LIBBPF_DYNAMIC=1 LIBBPF_DIR=/tmp/libbpf/
I based this change on top of Arnaldo's perf/core, because
it contains libbpf feature detection code as dependency.
It's now also synced with latest bpf-next, so Toke's change
applies correctly.
Also available in:
git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git
libbpf/dyn
thanks,
jirka
---
Jiri Olsa (2):
perf tools: Allow to specify libbpf install directory
bpftool: Allow to link libbpf dynamically
Toke Høiland-Jørgensen (1):
libbpf: Export netlink functions used by bpftool
tools/bpf/bpftool/Makefile | 40 +++++++++++++++++++++++++++++++++++++++-
tools/build/feature/test-libbpf.c | 9 +++++++++
tools/lib/bpf/libbpf.h | 22 +++++++++++++---------
tools/lib/bpf/libbpf.map | 7 +++++++
tools/lib/bpf/nlattr.h | 15 ++++++++++-----
tools/perf/Makefile.config | 27 ++++++++++++++++++++-------
6 files changed, 98 insertions(+), 22 deletions(-)
