Re: [RFC v1 0/8] x86/init: Linux linker tables

From	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Newsgroups	linux.kernel
Subject	Re: [RFC v1 0/8] x86/init: Linux linker tables
Date	2016-01-21 22:40 +0100
Message-ID	<qTv7r-2E4-1@gated-at.bofh.it> (permalink)
References	(2 earlier) <qGQt4-6k7-19@gated-at.bofh.it> <qGUQ2-Ms-5@gated-at.bofh.it> <qGV9n-Tm-3@gated-at.bofh.it> <qTu1I-1V0-11@gated-at.bofh.it> <qTubo-1Zs-15@gated-at.bofh.it>
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On Thu, Jan 21, 2016 at 12:33:43PM -0800, Luis R. Rodriguez wrote:
> On Thu, Jan 21, 2016 at 12:19 PM, H. Peter Anvin <hpa@zytor.com> wrote:
> > On 12/17/15 20:40, H. Peter Anvin wrote:
> >>>
> >>> const struct
> >>> foo__attribute__((used,section(".rodata.tbl.tablename.0"))) tablename[0];
> >>>
> >>> const struct
> >>> foo__attribute__((used,section(".rodata.tbl.tablename.999")))
> >>> tablename__end[0];
> >>>
> >
> > (Over)thinking about this some more, I suggest using the empty string
> > for the start and "~" for the end.  And, yes, I did check that ~ works
> > as part of a section name.
> 
> Sure, do we know if that ICC compatible? Do we care? There are a
> series of ICC hacks put in place on ipxe's original solution which
> I've folded in, it seems that works but if we care about ICC those
> folks should perhaps help review as well.

I didn't know the kernel could even be compiled with ICC? Thought
only GCC worked?

Anyhow - it may be that those fixes were for quite old ICC versions.
Does the latest one manifest these oddities?

> 
> > Something that confuses me is that gcc seems to give these sections the
> > "aw" attributes which makes as complain.  This might be a gcc bug.
> > Worst case we have to use an assembly statement to create these
> > sections; it isn't a big deal and shouldn't make it any more
> > architecture-specific.
> 
> OK!
> 
>  Luis

Thread

Re: [RFC v1 0/8] x86/init: Linux linker tables "H. Peter Anvin" <hpa@zytor.com> - 2016-01-21 21:30 +0100
  Re: [RFC v1 0/8] x86/init: Linux linker tables "Luis R. Rodriguez" <mcgrof@suse.com> - 2016-01-21 21:40 +0100
    Re: [RFC v1 0/8] x86/init: Linux linker tables Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> - 2016-01-21 22:40 +0100
      Re: [Xen-devel] [RFC v1 0/8] x86/init: Linux linker tables "Luis R. Rodriguez" <mcgrof@suse.com> - 2016-01-21 23:30 +0100
        Re: [Xen-devel] [RFC v1 0/8] x86/init: Linux linker tables "H. Peter Anvin" <hpa@zytor.com> - 2016-01-22 01:00 +0100
          Re: [Xen-devel] [RFC v1 0/8] x86/init: Linux linker tables "Luis R. Rodriguez" <mcgrof@suse.com> - 2016-01-22 01:30 +0100
      Re: [RFC v1 0/8] x86/init: Linux linker tables Michael Brown <mcb30@ipxe.org> - 2016-01-22 09:20 +0100
  Re: [RFC v1 0/8] x86/init: Linux linker tables Michael Matz <matz@suse.de> - 2016-01-22 14:50 +0100
    Re: [RFC v1 0/8] x86/init: Linux linker tables "H. Peter Anvin" <hpa@zytor.com> - 2016-01-22 20:10 +0100
      Re: [RFC v1 0/8] x86/init: Linux linker tables "Luis R. Rodriguez" <mcgrof@do-not-panic.com> - 2016-01-22 23:00 +0100

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