From: John Fastabend <john.fastabend@gmail.com>
To: Andrii Nakryiko <andriin@fb.com>,
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: RE: [PATCH v2 bpf-next 02/14] libbpf: parse multi-function sections into multiple BPF programs
Date: Tue, 01 Sep 2020 23:08:28 -0700 [thread overview]
Message-ID: <5f4f36dc134c5_5f39820836@john-XPS-13-9370.notmuch> (raw)
In-Reply-To: <20200901015003.2871861-3-andriin@fb.com>
Andrii Nakryiko wrote:
> Teach libbpf how to parse code sections into potentially multiple bpf_program
> instances, based on ELF FUNC symbols. Each BPF program will keep track of its
> position within containing ELF section for translating section instruction
> offsets into program instruction offsets: regardless of BPF program's location
> in ELF section, it's first instruction is always at local instruction offset
> 0, so when libbpf is working with relocations (which use section-based
> instruction offsets) this is critical to make proper translations.
>
> Signed-off-by: Andrii Nakryiko <andriin@fb.com>
> ---
Acked-by: John Fastabend <john.fastabend@gmail.com>
next prev parent reply other threads:[~2020-09-02 6:08 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-01 1:49 [PATCH v2 bpf-next 00/14] Add libbpf full support for BPF-to-BPF calls Andrii Nakryiko
2020-09-01 1:49 ` [PATCH v2 bpf-next 01/14] libbpf: ensure ELF symbols table is found before further ELF processing Andrii Nakryiko
2020-09-02 5:43 ` John Fastabend
2020-09-01 1:49 ` [PATCH v2 bpf-next 02/14] libbpf: parse multi-function sections into multiple BPF programs Andrii Nakryiko
2020-09-02 6:08 ` John Fastabend [this message]
2020-09-01 1:49 ` [PATCH v2 bpf-next 03/14] libbpf: support CO-RE relocations for multi-prog sections Andrii Nakryiko
2020-09-02 6:14 ` John Fastabend
2020-09-01 1:49 ` [PATCH v2 bpf-next 04/14] libbpf: make RELO_CALL work for multi-prog sections and sub-program calls Andrii Nakryiko
2020-09-02 5:36 ` Alexei Starovoitov
2020-09-02 19:52 ` Andrii Nakryiko
2020-09-01 1:49 ` [PATCH v2 bpf-next 05/14] libbpf: implement generalized .BTF.ext func/line info adjustment Andrii Nakryiko
2020-09-01 1:49 ` [PATCH v2 bpf-next 06/14] libbpf: add multi-prog section support for struct_ops Andrii Nakryiko
2020-09-01 1:49 ` [PATCH v2 bpf-next 07/14] selftests/bpf: add selftest for multi-prog sections and bpf-to-bpf calls Andrii Nakryiko
2020-09-02 5:41 ` Alexei Starovoitov
2020-09-02 19:57 ` Andrii Nakryiko
2020-09-01 1:49 ` [PATCH v2 bpf-next 08/14] tools/bpftool: replace bpf_program__title() with bpf_program__section_name() Andrii Nakryiko
2020-09-01 1:49 ` [PATCH v2 bpf-next 09/14] selftests/bpf: don't use deprecated libbpf APIs Andrii Nakryiko
2020-09-01 1:49 ` [PATCH v2 bpf-next 10/14] libbpf: deprecate notion of BPF program "title" in favor of "section name" Andrii Nakryiko
2020-09-01 1:50 ` [PATCH v2 bpf-next 11/14] selftests/bpf: turn fexit_bpf2bpf into test with subtests Andrii Nakryiko
2020-09-01 1:50 ` [PATCH v2 bpf-next 12/14] selftests/bpf: convert pyperf, strobemeta, and l4lb_noinline to __noinline Andrii Nakryiko
2020-09-02 5:45 ` Alexei Starovoitov
2020-09-02 19:58 ` Andrii Nakryiko
2020-09-01 1:50 ` [PATCH v2 bpf-next 13/14] selftests/bpf: modernize xdp_noinline test w/ skeleton and __noinline Andrii Nakryiko
2020-09-01 1:50 ` [PATCH v2 bpf-next 14/14] selftests/bpf: convert cls_redirect selftest to use __noinline Andrii Nakryiko
2020-09-02 5:46 ` Alexei Starovoitov
2020-09-02 19:58 ` Andrii Nakryiko
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