llvm dev - Jun 2007 - [LLVMdev] Improving link time building llvm

Just FYI, we discovered that GNU binutils 2.17 has a nasty bug in the
linker that causes excessive link time when building llvm.  We switched
to using cvs binutils and our link times went from minutes to seconds.

I didn't see anything about this on the web pages.  It might be good
information to add to the Getting Started guide.

                                              -Dave

> Just FYI, we discovered that GNU binutils 2.17 has a nasty bug in the
> linker that causes excessive link time when building llvm.  We switched
> to using cvs binutils and our link times went from minutes to seconds.
Is there a binutils snapshot that can be used instead ?

Aaron

On Friday 15 June 2007 19:48, Aaron Gray wrote:
> > Just FYI, we discovered that GNU binutils 2.17 has a nasty bug in the
> > linker that causes excessive link time when building llvm.  We
switched
> > to using cvs binutils and our link times went from minutes to seconds.
>
> Is there a binutils snapshot that can be used instead ?
I would assume that any recent snapshot would have the fix.  I don't
know exactly when they went in.

The "Linux binutils" apparently has the fix.  I believe most Linux 
distributions supply that version.

                                        -Dave

On 6/16/07, David A. Greene <greened at obbligato.org>
wrote:
> Just FYI, we discovered that GNU binutils 2.17 has a nasty bug in the
> linker that causes excessive link time when building llvm.  We switched
> to using cvs binutils and our link times went from minutes to seconds.
>
> I didn't see anything about this on the web pages.  It might be good
> information to add to the Getting Started guide.
Here is the bug:
http://sourceware.org/bugzilla/show_bug.cgi?id=3111

It was fixed in 2.17.50.0.4

Cheers,
Rafael

On Saturday 16 June 2007 04:18, Rafael Espíndola wrote:
> On 6/16/07, David A. Greene <greened at obbligato.org> wrote:
> > Just FYI, we discovered that GNU binutils 2.17 has a nasty bug in the
> > linker that causes excessive link time when building llvm.  We
switched
> > to using cvs binutils and our link times went from minutes to seconds.
> >
> > I didn't see anything about this on the web pages.  It might be
good
> > information to add to the Getting Started guide.
>
> Here is the bug:
> http://sourceware.org/bugzilla/show_bug.cgi?id=3111
>
> It was fixed in 2.17.50.0.4
Just to clarify, 2.17.50.0.4 is the "Linux binutils" which won't
help those
not working on Linux or not using the "Linux binutils."  The
"Linux binutils"
is essentially a pre-release version of the next GNU binutils and as such
it can sometimes include less than optimal patches.

Again, FYI.

                                           -Dave

On Sat, 16 Jun 2007, [UTF-8] Rafael Esp?ndola wrote:
> On 6/16/07, David A. Greene <greened at obbligato.org> wrote:
>> Just FYI, we discovered that GNU binutils 2.17 has a nasty bug in the
>> linker that causes excessive link time when building llvm.  We switched
>> to using cvs binutils and our link times went from minutes to seconds.
>>
>> I didn't see anything about this on the web pages.  It might be
good
>> information to add to the Getting Started guide.
>
> Here is the bug:
> http://sourceware.org/bugzilla/show_bug.cgi?id=3111
>
> It was fixed in 2.17.50.0.4
Excellent, thanks for the info.  I added it to the end of:
http://llvm.org/docs/GettingStarted.html#brokengcc

-Chris

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