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 [thread overview]
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
next reply other threads:[~2019-08-13 18:55 UTC|newest]
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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