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From: Andrii Nakryiko <andrii.nakryiko@gmail.com>
To: "Daniel Müller" <deso@posteo.net>, "Yonghong Song" <yhs@fb.com>
Cc: bpf <bpf@vger.kernel.org>, Alexei Starovoitov <ast@kernel.org>,
	Andrii Nakryiko <andrii@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Kernel Team <kernel-team@fb.com>,
	Joanne Koong <joannelkoong@gmail.com>
Subject: Re: [PATCH bpf-next v2 6/9] libbpf: Honor TYPE_MATCH relocation
Date: Fri, 24 Jun 2022 14:41:06 -0700	[thread overview]
Message-ID: <CAEf4BzZMd8UNSGJzejnw47zNYSnKjjFJ0Z9Qik3WyGhGgGGMAw@mail.gmail.com> (raw)
In-Reply-To: <20220623212205.2805002-7-deso@posteo.net>

On Thu, Jun 23, 2022 at 2:22 PM Daniel Müller <deso@posteo.net> wrote:
>
> This patch finalizes support for the proposed type match relation in
> libbpf by hooking it up to the TYPE_MATCH relocation. For this
> relocation to be handled correctly by LLVM we have D126838
> (https://reviews.llvm.org/D126838).

I think we are getting pretty close, is it time to land LLVM diff?
Yonghong, WDYT?

> The main functionality is present behind the newly introduced
> bpf_core_type_matches macro (similar to bpf_core_type_exists). This
> macro can be used to check whether a local type has a "match" in a
> target BTF.
>
> Signed-off-by: Daniel Müller <deso@posteo.net>
> ---
>  tools/lib/bpf/bpf_core_read.h | 10 ++++++++++
>  tools/lib/bpf/libbpf.c        |  6 ++++++
>  tools/lib/bpf/relo_core.c     | 16 ++++++++++++----
>  tools/lib/bpf/relo_core.h     |  2 ++
>  4 files changed, 30 insertions(+), 4 deletions(-)
>

[...]

  reply	other threads:[~2022-06-24 21:41 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-23 21:21 [PATCH bpf-next v2 0/9] Introduce type match support Daniel Müller
2022-06-23 21:21 ` [PATCH bpf-next v2 1/9] bpf: Introduce TYPE_MATCH related constants/macros Daniel Müller
2022-06-23 21:21 ` [PATCH bpf-next v2 2/9] bpftool: Honor BPF_CORE_TYPE_MATCHES relocation Daniel Müller
2022-06-24 11:37   ` Quentin Monnet
2022-06-27 16:43     ` Daniel Müller
2022-06-24 21:25   ` Andrii Nakryiko
2022-06-27 16:50     ` Daniel Müller
2022-06-23 21:21 ` [PATCH bpf-next v2 3/9] bpf: Introduce btf_int_bits() function Daniel Müller
2022-06-23 21:22 ` [PATCH bpf-next v2 4/9] libbpf: Add type match support Daniel Müller
2022-06-24 21:39   ` Andrii Nakryiko
2022-06-27 21:28     ` Daniel Müller
2022-06-23 21:22 ` [PATCH bpf-next v2 5/9] bpf: " Daniel Müller
2022-06-23 21:22 ` [PATCH bpf-next v2 6/9] libbpf: Honor TYPE_MATCH relocation Daniel Müller
2022-06-24 21:41   ` Andrii Nakryiko [this message]
2022-06-23 21:22 ` [PATCH bpf-next v2 7/9] selftests/bpf: Add type-match checks to type-based tests Daniel Müller
2022-06-23 21:22 ` [PATCH bpf-next v2 8/9] selftests/bpf: Add test checking more characteristics Daniel Müller
2022-06-23 21:22 ` [PATCH bpf-next v2 9/9] selftests/bpf: Add nested type to type based tests Daniel Müller
2022-06-24 21:45   ` Andrii Nakryiko
2022-06-27 23:06     ` Daniel Müller

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