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From: Miroslav Benes <mbenes@suse.cz>
To: Joe Lawrence <joe.lawrence@redhat.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	live-patching@vger.kernel.org,
	Linux Kbuild mailing list <linux-kbuild@vger.kernel.org>
Subject: Re: [PATCH v4 06/10] modpost: Add modinfo flag to livepatch modules
Date: Tue, 20 Aug 2019 09:54:05 +0200 (CEST)
Message-ID: <alpine.LSU.2.21.1908200948260.9536@pobox.suse.cz> (raw)
In-Reply-To: <9127bdf6-1daf-0387-88fb-6f1118dd6804@redhat.com>

> > How is this feature supposed to work for external modules?
> > 
> > klp-convert receives:
> > "symbols from vmlinux" + "symbols from no-klp in-tree modules"
> > + "symbols from no-klp external modules" ??
> > 
> 
> I don't think that this use-case has been previously thought out (Miroslav,
> correct me if I'm wrong here.)
> 
> I did just run an external build of a copy of
> samples/livepatch/livepatch-annotated-sample.c:
> 
>  - modules.livepatch is generated in external dir
>  - klp-convert is invoked for the livepatch module
>  - the external livepatch module successfully loads
> 
> But that was only testing external livepatch modules.
> 
> I don't know if we need/want to support general external modules supplementing
> Symbols.list, at least for the initial klp-convert commit.  I suppose external
> livepatch modules would then need to specify additional Symbols.list(s) files
> somehow as well.

I think we discussed it briefly and decided to postpone it for later 
improvements. External modules are not so important in my opinion.
 
> > 
> > BTW, 'Symbols.list' sounds like a file to list out symbols
> > for generic purposes, but in fact, the
> > file format is very specific for the klp-convert tool.
> > Perhaps, is it better to rename it so it infers
> > this is for livepatching? What do you think?
> > 
> 
> I don't know if the "Symbols.list" name and leading uppercase was based on any
> convention, but something like symbols.klp would be fine with me.

symbols.klp looks ok

Miroslav

  reply index

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20190509143859.9050-1-joe.lawrence@redhat.com>
     [not found] ` <alpine.LSU.2.21.1906131451560.22698@pobox.suse.cz>
     [not found]   ` <b1a627a4-3702-9689-6c03-0c2123c06a2d@redhat.com>
     [not found]     ` <c9021573-11c6-b576-0aa6-97754c98a06e@redhat.com>
     [not found]       ` <20190614083435.uq3mk6mprbatysol@pathway.suse.cz>
2019-06-25 11:36         ` [PATCH v4 00/10] klp-convert livepatch build tooling Miroslav Benes
2019-06-25 13:24           ` Joe Lawrence
2019-06-25 19:08           ` Joe Lawrence
2019-06-26 10:27             ` Miroslav Benes
     [not found] ` <20190509143859.9050-4-joe.lawrence@redhat.com>
2019-07-31  2:50   ` [PATCH v4 03/10] livepatch: Add klp-convert tool Masahiro Yamada
2019-07-31  3:36     ` Masahiro Yamada
2019-08-09 18:42       ` Joe Lawrence
2019-08-13  1:15         ` Masahiro Yamada
     [not found] ` <20190509143859.9050-7-joe.lawrence@redhat.com>
2019-07-31  5:58   ` [PATCH v4 06/10] modpost: Add modinfo flag to livepatch modules Masahiro Yamada
2019-08-12 15:56     ` Joe Lawrence
2019-08-15 15:05       ` Masahiro Yamada
2019-08-16  8:19         ` Miroslav Benes
2019-08-16 12:43           ` Joe Lawrence
2019-08-16 19:01             ` Joe Lawrence
2019-08-19  3:50               ` Masahiro Yamada
2019-08-19 15:55                 ` Joe Lawrence
2019-08-20  7:54                   ` Miroslav Benes [this message]
2019-08-19  3:49             ` Masahiro Yamada
2019-08-19  7:31               ` Miroslav Benes
2019-08-19 16:02                 ` Joe Lawrence
2019-08-22  3:35                   ` Masahiro Yamada
2019-08-13 10:26     ` Miroslav Benes
     [not found] ` <20190509143859.9050-8-joe.lawrence@redhat.com>
2019-08-16 11:35   ` [PATCH v4 07/10] livepatch: Add sample livepatch module Masahiro Yamada
2019-08-16 12:47     ` Joe Lawrence

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