Re: [RFC v3 07/13] tables.h: add linker table support
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- To: Borislav Petkov <bp@xxxxxxxxx>
- Subject: Re: [RFC v3 07/13] tables.h: add linker table support
- From: "Luis R. Rodriguez" <mcgrof@xxxxxxxxxx>
- Date: Fri, 12 Aug 2016 05:51:29 +0200
- Cc: "Luis R. Rodriguez" <mcgrof@xxxxxxxxxx>, hpa@xxxxxxxxx, tglx@xxxxxxxxxxxxx, mingo@xxxxxxxxxx, linux@xxxxxxxxxxxxxxxx, mhiramat@xxxxxxxxxx, masami.hiramatsu.pt@xxxxxxxxxxx, jbaron@xxxxxxxxxx, heiko.carstens@xxxxxxxxxx, ananth@xxxxxxxxxxxxxxxxxx, anil.s.keshavamurthy@xxxxxxxxx, davem@xxxxxxxxxxxxx, realmz6@xxxxxxxxx, x86@xxxxxxxxxx, luto@xxxxxxxxxxxxxx, keescook@xxxxxxxxxxxx, torvalds@xxxxxxxxxxxxxxxxxxxx, gregkh@xxxxxxxxxxxxxxxxxxx, rusty@xxxxxxxxxxxxxxx, gnomes@xxxxxxxxxxxxxxxxxxx, alan@xxxxxxxxxxxxxxx, dwmw2@xxxxxxxxxxxxx, arnd@xxxxxxxx, ming.lei@xxxxxxxxxxxxx, linux-arch@xxxxxxxxxxxxxxx, benh@xxxxxxxxxxxxxxxxxxx, ananth@xxxxxxxxxx, pebolle@xxxxxxxxxx, fontana@xxxxxxxxxxxxxxx, ciaran.farrell@xxxxxxxx, christopher.denicolo@xxxxxxxx, david.vrabel@xxxxxxxxxx, konrad.wilk@xxxxxxxxxx, mcb30@xxxxxxxx, jgross@xxxxxxxx, andrew.cooper3@xxxxxxxxxx, andriy.shevchenko@xxxxxxxxxxxxxxx, paul.gortmaker@xxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxx, ak@xxxxxxxxxxxxxxx, pali.rohar@xxxxxxxxx, dvhart@xxxxxxxxxxxxx, platform-driver-x86@xxxxxxxxxxxxxxx, mmarek@xxxxxxxx, linux@xxxxxxxxxxxxxxxxxx, jkosina@xxxxxxx, korea.drzix@xxxxxxxxx, linux-kbuild@xxxxxxxxxxxxxxx, tony.luck@xxxxxxxxx, akpm@xxxxxxxxxxxxxxxxxxxx, linux-ia64@xxxxxxxxxxxxxxx, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, linux-sh@xxxxxxxxxxxxxxx, sparclinux@xxxxxxxxxxxxxxx, catalin.marinas@xxxxxxx, will.deacon@xxxxxxx, rostedt@xxxxxxxxxxx, jpoimboe@xxxxxxxxxx
- In-reply-to: <20160809035508.GC11445@nazgul.tnic>
- References: <1469222687-1600-1-git-send-email-mcgrof@kernel.org> <1469222687-1600-8-git-send-email-mcgrof@kernel.org> <20160729100630.GA27271@nazgul.tnic> <20160808150539.GG3296@wotan.suse.de> <20160809035508.GC11445@nazgul.tnic>
- User-agent: Mutt/1.5.21 (2010-09-15)
On Tue, Aug 09, 2016 at 05:55:08AM +0200, Borislav Petkov wrote:
> On Mon, Aug 08, 2016 at 05:05:39PM +0200, Luis R. Rodriguez wrote:
> > > So how can I disable those table-* things from even getting built? Avoid
> > > using table-y? But then everything declared table-y will be built
> > > unconditionally. I don't think I like that. :-\
> >
> > I suppose we could make this configurable... But frankly I would prefer to
> > instead just document that this use should be carefully considered instead,
> > and let this be up to the maintainers. We can make it easily configurable so
> > we can do that later becomes a required, I don't think its needed though
> > given maintainers should use it only when needed.
>
> You know how maintainers are just people, right? At least in most cases :-)
>
> I think it would be better if it were machine-enforceable somehow.
> Maybe allow it only for core code and have a single, per-arch file
> arch/x86/linker_tables or so where all those statements are collected
> and can be eyeballed by more people. Dunno, just trying to think of
> something here...
OK I've added CONFIG_BUILD_AVOID_BITROT.
Luis
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