linux-kernel - Re: [PATCH v2 00/19] Implement DWARF modversions

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Message-ID: <2024081632-straw-animate-689f@gregkh>
Date: Fri, 16 Aug 2024 09:15:18 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: Sami Tolvanen <samitolvanen@...gle.com>
Cc: Masahiro Yamada <masahiroy@...nel.org>,
	Luis Chamberlain <mcgrof@...nel.org>,
	Miguel Ojeda <ojeda@...nel.org>,
	Matthew Maurer <mmaurer@...gle.com>,
	Alex Gaynor <alex.gaynor@...il.com>,
	Wedson Almeida Filho <wedsonaf@...il.com>,
	Gary Guo <gary@...yguo.net>, Petr Pavlu <petr.pavlu@...e.com>,
	Neal Gompa <neal@...pa.dev>, Hector Martin <marcan@...can.st>,
	Janne Grunau <j@...nau.net>, Asahi Linux <asahi@...ts.linux.dev>,
	linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-modules@...r.kernel.org, rust-for-linux@...r.kernel.org
Subject: Re: [PATCH v2 00/19] Implement DWARF modversions

On Thu, Aug 15, 2024 at 05:39:04PM +0000, Sami Tolvanen wrote:
> Changes in v2:
> - Per Luis' request, dropped Rust-specific patches and added
>   gendwarfksyms as an alternative to genksyms for the entire
>   kernel.
> 
> - Added support for missing DWARF features needed to handle
>   also non-Rust code.
> 
> - Changed symbol address matching to use the symbol table
>   information instead of relying on addresses in DWARF.
> 
> - Added __gendwarfksyms_ptr patches to ensure the compiler emits
>   the necessary type information in DWARF even for symbols that
>   are defined in other TUs.
> 
> - Refactored debugging output and moved the more verbose output
>   behind --dump* flags.
> 
> - Added a --symtypes flag for generating a genksyms-style
>   symtypes output based on Petr's feedback, and refactored
>   symbol version calculations to be based on symtypes instead
>   of raw --dump-dies output.
> 
> - Based on feedback from Greg and Petr, added --stable flag and
>   support for reserved data structure fields and declaration-onl
>   structures. Also added examples for using these features.

I missed the examples for this, is there a Documentation/ update
somewhere to explain this?  What patch of the series handles this?

thanks,

greg k-h