linux-kernel - Re: [RFC] perf build: Allow passing extra Clang flags via EXTRA_CLANG

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20251013161429.GE77665@e132581.arm.com>
Date: Mon, 13 Oct 2025 17:14:29 +0100
From: Leo Yan <leo.yan@....com>
To: Ian Rogers <irogers@...gle.com>
Cc: hupu <hupu.gm@...il.com>, namhyung@...nel.org, peterz@...radead.org,
	mingo@...hat.com, acme@...nel.org, mark.rutland@....com,
	alexander.shishkin@...ux.intel.com, jolsa@...nel.org,
	adrian.hunter@...el.com, nathan@...nel.org,
	nick.desaulniers+lkml@...il.com, morbo@...gle.com,
	justinstitt@...gle.com, linux-kernel@...r.kernel.org,
	linux-perf-users@...r.kernel.org
Subject: Re: [RFC] perf build: Allow passing extra Clang flags via
 EXTRA_CLANG_FLAGS

On Mon, Oct 13, 2025 at 08:46:01AM -0700, Ian Rogers wrote:
> On Mon, Oct 13, 2025 at 1:08 AM hupu <hupu.gm@...il.com> wrote:
> >
> > Hi Maintainer,
> >
> > I encountered some issues while cross-compiling perf (ARCH=arm64),
> > particularly when enabling the BPF option. During the build, Clang
> > fails to compile BPF programs due to missing header files. The
> > relevant error messages are as follows:
> 
> Thanks for reporting this issue! There has been some recent work in
> this area by Leo:
> https://lore.kernel.org/lkml/20251006-perf_build_android_ndk-v3-0-4305590795b2@arm.com/
> The patches are in Linux v6.18-rc1. Perhaps you could try repeating
> your build with this tree and reporting issues?

I am not 100% sure, could you execute install kernel headers and then
build perf ?

  make headers_install

Thanks,
Leo