linux-kernel - Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm

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Message-ID: <830d2864-ab52-27c8-8178-ec86f3267079@redhat.com>
Date:   Thu, 1 Dec 2016 11:48:09 +0100
From:   Stanislav Kozina <skozina@...hat.com>
To:     Don Zickus <dzickus@...hat.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Nicholas Piggin <npiggin@...il.com>,
        Ben Hutchings <ben@...adent.org.uk>,
        Michal Marek <mmarek@...e.com>,
        Adam Borowski <kilobyte@...band.pl>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        Debian kernel maintainers <debian-kernel@...ts.debian.org>,
        "linux-arch@...r.kernel.org" <linux-arch@...r.kernel.org>,
        Arnd Bergmann <arnd@...db.de>, Ingo Molnar <mingo@...nel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] x86/kbuild: enable modversions for symbols exported from
 asm



On 12/01/2016 05:13 AM, Don Zickus wrote:

...

> I think GregKH pointed to one such tool, libabigail?  We are working on
> others too.

I should mention one of the others here:
https://github.com/skozina/kabi-dw

It's quite comparable to libabigail in the way it works, the main 
differences are:
  - written in pure C
  - depends only on elf-utils and flex/yacc
  - it's much simpler (4k LOC)
  - stores the type information in the text files and compares those 
instead of directly comparing two sets of DWARF data

Regards,
-Stanislav