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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>, <acme@redhat.com>
Cc: <andrii.nakryiko@gmail.com>, <kernel-team@fb.com>,
	Andrii Nakryiko <andriin@fb.com>
Subject: [PATCH bpf-next 0/2] libbpf: make use of BTF through sysfs
Date: Tue, 13 Aug 2019 11:54:41 -0700
Message-ID: <20190813185443.437829-1-andriin@fb.com> (raw)

Now that kernel's BTF is exposed through sysfs at well-known location, attempt
to load it first as a target BTF for the purpose of BPF CO-RE relocations.

Patch #1 is a follow-up patch to rename /sys/kernel/btf/kernel into
/sys/kernel/btf/vmlinux.
Patch #2 adds ability to load raw BTF contents from sysfs and expands the list
of locations libbpf attempts to load vmlinux BTF from.

Andrii Nakryiko (2):
  btf: rename /sys/kernel/btf/kernel into /sys/kernel/btf/vmlinux
  libbpf: attempt to load kernel BTF from sysfs first

 Documentation/ABI/testing/sysfs-kernel-btf |  2 +-
 kernel/bpf/sysfs_btf.c                     | 30 +++++-----
 scripts/link-vmlinux.sh                    | 18 +++---
 tools/lib/bpf/libbpf.c                     | 64 +++++++++++++++++++---
 4 files changed, 82 insertions(+), 32 deletions(-)

-- 
2.17.1


             reply index

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-13 18:54 Andrii Nakryiko [this message]
2019-08-13 18:54 ` [PATCH bpf-next 1/2] btf: rename /sys/kernel/btf/kernel into /sys/kernel/btf/vmlinux Andrii Nakryiko
2019-08-13 18:54 ` [PATCH bpf-next 2/2] libbpf: attempt to load kernel BTF from sysfs first Andrii Nakryiko
2019-08-13 21:22 ` [PATCH bpf-next 0/2] libbpf: make use of BTF through sysfs Daniel Borkmann

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