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Fri, 02 Oct 2026 05:24:52 -0700 (PDT) Content-Type: text/plain; charset=UTF-8 Date: Fri, 02 Oct 2026 12:24:51 +0000 Message-Id: Cc: , , , Subject: Re: [PATCH bpf-next 05/14] bpf: Allow names of Rust types and functions in BTF From: "Alexei Starovoitov" To: "Alan Maguire" , In-Reply-To: <82f7ccc5-da2a-4b78-a10a-442acfac1855@oracle.com> References: <20260930193127.2181684-1-alexei.starovoitov@gmail.com> <20260930193127.2181684-6-alexei.starovoitov@gmail.com> <82f7ccc5-da2a-4b78-a10a-442acfac1855@oracle.com> X-Mailer: mkdraft (claude review draft; edit before sending) Content-Transfer-Encoding: 8bit Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Thu, Oct 01, 2026 at 06:42 PM Alan Maguire wrote: > The idea is that for tracing rust functions you could specify the rust name > (from DWARF DW_AT_name) in the SEC(), but to map to the actual symbol > address in kallsyms the decl tag that referenced that function could use > the DW_AT_linkage name. > > So the decl tag would have the form > > :linkage: > > and it would reference the FUNC type id. > > Could we do similar here for the name -> symbol mapping? I don't think I got the idea. To help with mangle/demangle? bpf_prog__write_fmt_scx_cosmos__BpfStream_ is imo readable enough for humans.