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Re: ping #3: [RFA] Add --with-libz-prefix option in config/zlib.m4


On 18 Feb 2015 13:54, H.J. Lu wrote:
> On Wed, Feb 18, 2015 at 1:40 PM, Mark Wielaard wrote:
> > On Wed, 2015-02-18 at 12:53 -0800, H.J. Lu wrote:
> >> On Wed, Feb 18, 2015 at 12:32 PM, Mark Wielaard wrote:
> >> > That doesn't seem like a smart default. And why is is Linux/x86 only?
> >> > Shouldn't that be something that is done explicitly by a distro
> >> > configuring binutils after making sure it actually is beneficial
> >> > (debuginfo is often compressed in a different way, on the package/file
> >> > level or with dwz). And after making sure all tools actually work with
> >> > it? There are various tools that don't handle the .zdebug format like
> >> > valgrind. And at least elfutils has trouble with it for ET_REL files,
> >> > like kernel modules, because relocations don't actually apply anymore to
> >> > the section data as is (but only after the decompression).
> >>
> >> Now it becomes a monthly topic:
> >>
> >> https://sourceware.org/ml/binutils/2015-01/msg00089.html
> >
> > Thanks, I hadn't seen that before. Alan Modra makes some good points in
> > that thread why it is not a good change:
> > https://sourceware.org/ml/binutils/2015-01/msg00135.html
> > Do people agree with that? And/Or can the change be reverted for now
> > till there is agreement it is a desirable default?
> 
> It may not be a good idea for all targets.  If you find an issue
> on Linux/x86, please file a bug binutils report.

i think we already have the reports: multiple people don't think it should be 
(1) x86-specific or (2) required.  don't get me wrong -- i think having support 
like this is great.  that doesn't mean we should be forcing it.
-mike

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