linux-kernel - Re: [PATCH bpf-next v4 8/8] resolve_btfids: Change in-place update with raw binary output

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: <914f4a97-f053-4979-b63a-9b7a7f72369a@linux.dev>
Date: Thu, 18 Dec 2025 09:54:20 -0800
From: Ihor Solodrai <ihor.solodrai@...ux.dev>
To: Alan Maguire <alan.maguire@...cle.com>,
 Alexei Starovoitov <ast@...nel.org>, Andrea Righi <arighi@...dia.com>,
 Andrew Morton <akpm@...ux-foundation.org>,
 Andrii Nakryiko <andrii@...nel.org>, Bill Wendling <morbo@...gle.com>,
 Changwoo Min <changwoo@...lia.com>, Daniel Borkmann <daniel@...earbox.net>,
 David Vernet <void@...ifault.com>, Donglin Peng <dolinux.peng@...il.com>,
 Eduard Zingerman <eddyz87@...il.com>, Hao Luo <haoluo@...gle.com>,
 Jiri Olsa <jolsa@...nel.org>, John Fastabend <john.fastabend@...il.com>,
 Jonathan Corbet <corbet@....net>, Justin Stitt <justinstitt@...gle.com>,
 KP Singh <kpsingh@...nel.org>, Martin KaFai Lau <martin.lau@...ux.dev>,
 Nathan Chancellor <nathan@...nel.org>,
 Nick Desaulniers <nick.desaulniers+lkml@...il.com>,
 Nicolas Schier <nsc@...nel.org>, Shuah Khan <shuah@...nel.org>,
 Song Liu <song@...nel.org>, Stanislav Fomichev <sdf@...ichev.me>,
 Tejun Heo <tj@...nel.org>, Yonghong Song <yonghong.song@...ux.dev>
Cc: bpf@...r.kernel.org, dwarves@...r.kernel.org,
 linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org,
 sched-ext@...ts.linux.dev
Subject: Re: [PATCH bpf-next v4 8/8] resolve_btfids: Change in-place update
 with raw binary output

On 12/17/25 4:33 PM, Ihor Solodrai wrote:
> [...]
> diff --git a/scripts/Makefile.btf b/scripts/Makefile.btf
> index 840a55de42da..b8569d450ed9 100644
> --- a/scripts/Makefile.btf
> +++ b/scripts/Makefile.btf
> @@ -1,5 +1,10 @@
>  # SPDX-License-Identifier: GPL-2.0
>  
> +gen-btf-y				=
> +gen-btf-$(CONFIG_DEBUG_INFO_BTF)	= $(srctree)/scripts/gen-btf.sh
> +
> +export GEN_BTF := $(gen-btf-y)
> +

Ugh... GEN_BTF is not used anywhere in v4.
Looks like I forgot a `git add` at some point.

I'll wait a bit before sending a v5, in case there is more feedback.

>  pahole-ver := $(CONFIG_PAHOLE_VERSION)
>  pahole-flags-y :=
>  
> @@ -18,13 +23,15 @@ pahole-flags-$(call test-ge, $(pahole-ver), 126)  = -j$(JOBS) --btf_features=enc
>  
>  pahole-flags-$(call test-ge, $(pahole-ver), 130) += --btf_features=attributes
>  
> -ifneq ($(KBUILD_EXTMOD),)
> -module-pahole-flags-$(call test-ge, $(pahole-ver), 128) += --btf_features=distilled_base
> -endif
> -
>  endif
>  
>  [...]