linux-kernel - Re: [PATCH v9 3/4] scripts: add verifier script for builtin module range data

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Message-ID: <CABCJKufBPaVu-C4bKY=jWxOQJX1OR+7=+DE-wtcy7=d=9ZFFcQ@mail.gmail.com>
Date: Fri, 30 Aug 2024 16:48:37 -0700
From: Sami Tolvanen <samitolvanen@...gle.com>
To: Kris Van Hees <kris.van.hees@...cle.com>
Cc: linux-kernel@...r.kernel.org, linux-kbuild@...r.kernel.org, 
	linux-modules@...r.kernel.org, linux-trace-kernel@...r.kernel.org, 
	Nick Alcock <nick.alcock@...cle.com>, Alan Maguire <alan.maguire@...cle.com>, 
	Masahiro Yamada <masahiroy@...nel.org>, Steven Rostedt <rostedt@...dmis.org>, 
	Luis Chamberlain <mcgrof@...nel.org>, Masami Hiramatsu <mhiramat@...nel.org>, 
	Nick Desaulniers <ndesaulniers@...gle.com>, Jiri Olsa <olsajiri@...il.com>, 
	Elena Zannoni <elena.zannoni@...cle.com>
Subject: Re: [PATCH v9 3/4] scripts: add verifier script for builtin module
 range data

Hi Kris,

On Fri, Aug 23, 2024 at 8:38 PM Kris Van Hees <kris.van.hees@...cle.com> wrote:
>
> diff --git a/scripts/verify_builtin_ranges.awk b/scripts/verify_builtin_ranges.awk
> new file mode 100755
> index 000000000000..f513841da83e
> --- /dev/null
> +++ b/scripts/verify_builtin_ranges.awk
> @@ -0,0 +1,356 @@
> +#!/usr/bin/gawk -f
> +# SPDX-License-Identifier: GPL-2.0
> +# verify_builtin_ranges.awk: Verify address range data for builtin modules
> +# Written by Kris Van Hees <kris.van.hees@...cle.com>
> +#
> +# Usage: verify_builtin_ranges.awk modules.builtin.ranges System.map \
> +#                                 modules.builtin vmlinux.map vmlinux.o.map \
> +#                                 [ <build-dir> ]

While I was testing this, I did an arm64 build and I'm getting a long
list of errors that ends with this:

ERROR: Failed to read:
././drivers/firmware/efi/libstub/.lib.a(efi-stub-entry.stub.o.cmd

  Invalid kernel build directory (.)
  or its content does not match modules.builtin.ranges

That path looks a bit funky. Have you tested this with other
architectures? I was able to get this to work on x86 builds just fine.

Sami