From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Tamir Duberstein <tamird@gmail.com>
Cc: "Alice Ryhl" <aliceryhl@google.com>,
"Neal Gompa" <neal@gompa.dev>,
"Miguel Ojeda" <miguel.ojeda.sandonis@gmail.com>,
"Matthew Maurer" <mmaurer@google.com>,
"Miguel Ojeda" <ojeda@kernel.org>,
"Alex Gaynor" <alex.gaynor@gmail.com>,
"Boqun Feng" <boqun.feng@gmail.com>,
"Gary Guo" <gary@garyguo.net>,
"Björn Roy Baron" <bjorn3_gh@protonmail.com>,
"Benno Lossin" <benno.lossin@proton.me>,
"Andreas Hindborg" <a.hindborg@kernel.org>,
"Trevor Gross" <tmgross@umich.edu>,
linux-kernel@vger.kernel.org, rust-for-linux@vger.kernel.org,
"Matthias Maennich" <maennich@google.com>,
bpf <bpf@vger.kernel.org>,
"Martin KaFai Lau" <martin.lau@linux.dev>,
"Alexei Starovoitov" <ast@kernel.org>,
"Daniel Borkmann" <daniel@iogearbox.net>,
"Andrii Nakryiko" <andrii@kernel.org>,
"John Fastabend" <john.fastabend@gmail.com>,
"Eric Curtin" <ecurtin@redhat.com>,
"Martin Reboredo" <yakoyoku@gmail.com>,
"Alessandro Decina" <alessandro.d@gmail.com>,
"Michal Rostecki" <vadorovsky@protonmail.com>,
"Dave Tucker" <dave@dtucker.co.uk>
Subject: Re: [PATCH] rust: Disallow BTF generation with Rust + LTO
Date: Thu, 9 Jan 2025 13:29:44 -0300 [thread overview]
Message-ID: <Z3_5eGD_F1_ZxfqE@x1> (raw)
In-Reply-To: <CAJ-ks9k23fKauY6JFt37OEewKPLhwdQaOFz19BKekqUoRhJCkA@mail.gmail.com>
On Thu, Jan 09, 2025 at 10:49:49AM -0500, Tamir Duberstein wrote:
> On Thu, Jan 9, 2025 at 10:47 AM Arnaldo Carvalho de Melo <acme@kernel.org> wrote:
> > I was thinking about it after reading this thread yesterday, i.e. we
> > could encode constructs from Rust that can be represented in BTF and
> > skip the ones that can't, pruning types that depend on non BTF
> > representable types, etc.
> Yep, this is what bpf-linker does, along with some other things[0]. I
> highly recommend reading the code I linked to avoid re-discovering
> these things.
Sure, thanks for pointing it out and suggest I read it while
experimenting with having the same concept in pahole, I'll try a quick
hack and then look at it to see how close I got to what you guys came up
with :-)
- Arnaldo
> [0] https://github.com/aya-rs/bpf-linker/commit/1007ec7fed03562eb7d08f3e7521094a7e698b95
next prev parent reply other threads:[~2025-01-09 16:29 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-01-08 23:35 [PATCH] rust: Disallow BTF generation with Rust + LTO Matthew Maurer
2025-01-09 13:17 ` Miguel Ojeda
2025-01-09 14:10 ` Neal Gompa
2025-01-09 14:15 ` Alice Ryhl
2025-01-09 14:55 ` Tamir Duberstein
2025-01-09 15:47 ` Arnaldo Carvalho de Melo
2025-01-09 15:49 ` Tamir Duberstein
2025-01-09 16:29 ` Arnaldo Carvalho de Melo [this message]
2025-01-09 16:37 ` Arnaldo Carvalho de Melo
2025-01-09 22:39 ` Arnaldo Carvalho de Melo
2025-01-09 22:41 ` Matthew Maurer
2025-01-10 14:54 ` Arnaldo Carvalho de Melo
2025-01-10 16:22 ` Dave Tucker
2025-01-10 16:41 ` vadorovsky
2025-03-11 19:20 ` Miguel Ojeda
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