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From: Andrii Nakryiko <andriin@fb.com>
To: <bpf@vger.kernel.org>, <netdev@vger.kernel.org>, <ast@fb.com>,
	<daniel@iogearbox.net>
Cc: <andrii.nakryiko@gmail.com>, <kernel-team@fb.com>,
	Andrii Nakryiko <andriin@fb.com>
Subject: [PATCH bpf-next 0/7] Auto-guess program type on bpf_object__open
Date: Sun, 20 Oct 2019 20:38:55 -0700	[thread overview]
Message-ID: <20191021033902.3856966-1-andriin@fb.com> (raw)

This patch set's main goal is to teach bpf_object__open() (and its variants)
to automatically derive BPF program type/expected attach type from section
names, similarly to how bpf_prog_load() was doing it. This significantly
improves user experience by eliminating yet another
obvious-only-in-the-hindsight surprise, when using libbpf APIs.

There are a bunch of auxiliary clean-ups and improvements. E.g.,
bpf_program__get_type() and bpf_program__get_expected_attach_type() are added
for completeness and symmetry with corresponding setter APIs. Some clean up
and fixes in selftests/bpf are done as well.

Andrii Nakryiko (7):
  tools: sync if_link.h
  libbpf: add bpf_program__get_{type, expected_attach_type) APIs
  libbpf: add uprobe/uretprobe and tp/raw_tp section suffixes
  libbpf: teach bpf_object__open to guess program types
  selftests/bpf: make a copy of subtest name
  selftests/bpf: make reference_tracking test use subtests
  selftest/bpf: get rid of a bunch of explicit BPF program type setting

 tools/include/uapi/linux/if_link.h            |  2 +
 tools/lib/bpf/libbpf.c                        | 80 ++++++++++++-------
 tools/lib/bpf/libbpf.h                        |  5 ++
 tools/lib/bpf/libbpf.map                      |  2 +
 .../selftests/bpf/prog_tests/attach_probe.c   |  5 --
 .../selftests/bpf/prog_tests/core_reloc.c     |  1 -
 .../selftests/bpf/prog_tests/rdonly_maps.c    |  4 -
 .../bpf/prog_tests/reference_tracking.c       |  3 +-
 .../selftests/bpf/progs/test_sk_lookup_kern.c | 18 ++---
 tools/testing/selftests/bpf/test_maps.c       |  4 -
 tools/testing/selftests/bpf/test_progs.c      | 17 ++--
 11 files changed, 83 insertions(+), 58 deletions(-)

-- 
2.17.1


             reply	other threads:[~2019-10-21  3:39 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-21  3:38 Andrii Nakryiko [this message]
2019-10-21  3:38 ` [PATCH bpf-next 1/7] tools: sync if_link.h Andrii Nakryiko
2019-10-21  3:38 ` [PATCH bpf-next 2/7] libbpf: add bpf_program__get_{type, expected_attach_type) APIs Andrii Nakryiko
2019-10-21  3:38 ` [PATCH bpf-next 3/7] libbpf: add uprobe/uretprobe and tp/raw_tp section suffixes Andrii Nakryiko
2019-10-21  3:38 ` [PATCH bpf-next 4/7] libbpf: teach bpf_object__open to guess program types Andrii Nakryiko
     [not found]   ` <20191023042444.GJ12647@shao2-debian>
2019-10-23  6:12     ` [libbpf] 651b775f02: kernel_selftests.bpf.test_section_names.fail Andrii Nakryiko
2019-10-21  3:39 ` [PATCH bpf-next 5/7] selftests/bpf: make a copy of subtest name Andrii Nakryiko
2019-10-21  3:39 ` [PATCH bpf-next 6/7] selftests/bpf: make reference_tracking test use subtests Andrii Nakryiko
2019-10-21  3:39 ` [PATCH bpf-next 7/7] selftest/bpf: get rid of a bunch of explicit BPF program type setting Andrii Nakryiko
2019-10-21 12:55 ` [PATCH bpf-next 0/7] Auto-guess program type on bpf_object__open Daniel Borkmann

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