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From: Martin KaFai Lau <kafai@fb.com>
To: <bpf@vger.kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	David Miller <davem@davemloft.net>, <kernel-team@fb.com>,
	<netdev@vger.kernel.org>
Subject: [PATCH bpf-next 0/5] bpftool: Support dumping a map with btf_vmlinux_value_type_id
Date: Tue, 14 Jan 2020 14:43:58 -0800
Message-ID: <20200114224358.3027079-1-kafai@fb.com> (raw)

When a map is storing a kernel's struct, its
map_info->btf_vmlinux_value_type_id is set.  The first map type
supporting it is BPF_MAP_TYPE_STRUCT_OPS.

This series adds support to dump this kind of map with BTF.
The first two patches are bug fixes which only applicable to
in bpf-next.

Please see individual patches for details.

Martin KaFai Lau (5):
  bpftool: Fix a leak of btf object
  bpftool: Fix missing BTF output for json during map dump
  libbpf: Expose bpf_find_kernel_btf to libbpf_internal.h
  bpftool: Add struct_ops map name
  bpftool: Support dumping a map with btf_vmlinux_value_type_id

 tools/bpf/bpftool/map.c         | 84 ++++++++++++++++++---------------
 tools/lib/bpf/libbpf.c          |  3 +-
 tools/lib/bpf/libbpf_internal.h |  1 +
 3 files changed, 49 insertions(+), 39 deletions(-)

-- 
2.17.1


             reply index

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-14 22:43 Martin KaFai Lau [this message]
2020-01-14 22:44 ` [PATCH bpf-next 1/5] bpftool: Fix a leak of btf object Martin KaFai Lau
2020-01-15  1:10   ` Andrii Nakryiko
2020-01-15  5:46     ` Martin Lau
2020-01-15  6:40       ` Andrii Nakryiko
2020-01-16  8:00       ` Paul Chaignon
2020-01-14 22:44 ` [PATCH bpf-next 2/5] bpftool: Fix missing BTF output for json during map dump Martin KaFai Lau
2020-01-15  1:34   ` Andrii Nakryiko
2020-01-15  5:54     ` Martin Lau
2020-01-15  6:36       ` Andrii Nakryiko
2020-01-14 22:44 ` [PATCH bpf-next 3/5] libbpf: Expose bpf_find_kernel_btf to libbpf_internal.h Martin KaFai Lau
2020-01-15  1:43   ` Andrii Nakryiko
2020-01-15  5:56     ` Martin Lau
2020-01-14 22:44 ` [PATCH bpf-next 4/5] bpftool: Add struct_ops map name Martin KaFai Lau
2020-01-15  1:45   ` Andrii Nakryiko
2020-01-14 22:44 ` [PATCH bpf-next 5/5] bpftool: Support dumping a map with btf_vmlinux_value_type_id Martin KaFai Lau
2020-01-15  1:49   ` Andrii Nakryiko
2020-01-15  6:04     ` Martin Lau
2020-01-15  6:39       ` Andrii Nakryiko

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