From: Namhyung Kim <namhyung@kernel.org>
To: Quentin Monnet <qmo@kernel.org>
Cc: bpf@vger.kernel.org, linux-perf-users@vger.kernel.org
Subject: Re: [BUG] bpftool: Build failure due to opensslv.h
Date: Mon, 27 Oct 2025 11:27:09 -0700 [thread overview]
Message-ID: <aP-5fUaroYE5xSnw@google.com> (raw)
In-Reply-To: <2cb226f8-a67c-4bdb-8c59-507c99a46bab@kernel.org>
On Mon, Oct 27, 2025 at 11:41:01AM +0000, Quentin Monnet wrote:
> 2025-10-26 21:01 UTC-0700 ~ Namhyung Kim <namhyung@kernel.org>
> > Hello,
> >
> > I'm seeing a build failure like below in Fedora 40 and others. I'm not
> > sure if it's reported already but it failed to build perf tools due to
> > errors in the bootstrap bpftool.
> >
> > CC /build/util/bpf_skel/.tmp/bootstrap/sign.o
> > sign.c:16:10: fatal error: openssl/opensslv.h: No such file or directory
> > 16 | #include <openssl/opensslv.h>
> > | ^~~~~~~~~~~~~~~~~~~~
> > compilation terminated.
> > make[3]: *** [Makefile:256: /build/util/bpf_skel/.tmp/bootstrap/sign.o] Error 1
> > make[3]: *** Waiting for unfinished jobs....
> > make[2]: *** [Makefile.perf:1213: /build/util/bpf_skel/.tmp/bootstrap/bpftool] Error 2
> > make[1]: *** [Makefile.perf:289: sub-make] Error 2
> > make: *** [Makefile:76: all] Error 2
> >
> > I think it's from the recent signing change. I'm not familiar with
> > openssl but I guess there's a proper feature check for it. Is this a
> > known issue?
>
>
> Hi Namhyung,
Hello!
>
> This looks related to the program signing change indeed, commit
> 40863f4d6ef2 ("bpftool: Add support for signing BPF programs")
> introduced a dependency on OpenSSL's development headers for bpftool.
> It's not gated behind a feature check. On Fedora, I think the headers
> come with openssl-devel, do you have this package installed?
No I don't, but I guess it should be able to build on such systems. Or
is it required for bpftool? Anyway I feel like it should have a feature
check and appropriate error messages.
Thanks,
Namhyung
next prev parent reply other threads:[~2025-10-27 18:27 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-27 4:01 [BUG] bpftool: Build failure due to opensslv.h Namhyung Kim
2025-10-27 11:41 ` Quentin Monnet
2025-10-27 18:27 ` Namhyung Kim [this message]
2025-10-28 9:05 ` Quentin Monnet
2025-10-28 10:20 ` Alan Maguire
2025-10-30 5:44 ` Namhyung Kim
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