[Bug gas/29107] gas testsuite parallel jobs fail (gprofng?)

[xry111 at xry111 dot site]

https://sourceware.org/bugzilla/show_bug.cgi?id=29107

Xi Ruoyao <xry111 at xry111 dot site> changed:

           What    |Removed                     |Added
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                 CC|                            |xry111 at xry111 dot site

--- Comment #2 from Xi Ruoyao <xry111 at xry111 dot site> ---
(In reply to Nick Clifton from comment #1)
> (In reply to Toolybird from comment #0)
>  
> > Any thoughts? Thanks.
>  
> Don't run the testsuites in parallel ?  :-)  
> 
> OK, so not helpful.  Instead some questions - if you run the builds in
> parallel, but then the checks sequentially, does everything work.  How about
> the other way around (sequential builds, parallel tests) ?
> 
> The thing that struck me about the error message was that it looks like the
> opcodes library is in the process of being built whilst the tests are
> running.  So maybe - just a theory - the gprofng testsuite is triggering a
> *re-build* of the opcodes library for some reason.  (Because of some strange
> makefile dependency maybe ?)

The reason is gprofng tests installs libopcodes.so into a chroot environment,
and libtool (a stupid thing trying to be *too* clever, I must add) relinks a
shared object being installed.

> Another wild guess - maybe adding the .NOTPARALLEL: pseudo-target to the
> gprofng Makefile.am would help ?  Just before the check-DEJAGNU: target ?

I'll try.

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