linker_unload validate related issue (how to duplicate that?).

[Edward Z. Yang]

Austin and I chatted about it, and it's probably because the test is not
creating ghcconfig.h early enough.  I haven't looked further on how to
fix it though.

Edward

Excerpts from Karel Gardas's message of 2014-08-06 10:16:20 +0100:
> 
> Folks,
> 
> I've noted that validate is failing on Linux recently due to issue in 
> linker_unload. As I've submitted some patch to this test case recently 
> which fixes this on Solaris I'm kind of curious if I broke it or not. 
> Anyway, strange thing is: when I configure ghc and run the test by 
> (g)make TEST=linker_unload on both Linux and Solaris I get no failure. 
> When I validate on Linux (validate is not working on Solaris yet), then 
> I get failure in linker_unload:
> 
> Wrong exit code (expected 0 , actual 2 )
> Stdout:
> 
> Stderr:
> /bin/sh: 1: Syntax error: Unterminated quoted string
> make[3]: *** [linker_unload] Error 2
> 
> *** unexpected failure for linker_unload(normal)
> 
> 
> when I try to run:
> 
> cd testsuite
> make TEST=linker_unload
> 
> inside this validation tree I again get no failure in this test:
> 
> [...]
> =====> linker_unload(normal) 2522 of 4082 [0, 0, 0]
> cd ./rts && $MAKE -s --no-print-directory linker_unload    </dev/null 
>  >linker_unload.run.stdout 2>linker_unload.run.stderr
> 
> OVERALL SUMMARY for test run started at Wed Aug  6 10:55:17 2014 CEST
>   0:00:08 spent to go through
>      4082 total tests, which gave rise to
>     13459 test cases, of which
>     13458 were skipped
> 
>         0 had missing libraries
>         1 expected passes
>         0 expected failures
> 
>         0 caused framework failures
>         0 unexpected passes
>         0 unexpected failures
> 
> make[1]: Leaving directory `/home/karel/src/validate-test/testsuite/tests'
> 
> I've also noted that this test case fails on Solaris builders with 
> strange error:
> 
> =====> linker_unload(normal) 170 of 4082 [0, 0, 1]
> cd ./rts && $MAKE -s --no-print-directory linker_unload </dev/null 
>  >linker_unload.run.stdout 2>linker_unload.run.stderr
> Wrong exit code (expected 0 , actual 2 )
> Stdout:
> Stderr:
> linker_unload: internal error: loadObj: can't read 
> `/buildbot/gabor-ghc-head-builder/builder/tempbuild/build/bindisttest/install/libHSinteg_BcPVjqcazPNGsNFG4agFty.a'
> (GHC version 7.9.20140806 for i386_unknown_solaris2)
> Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
> gmake[3]: *** [linker_unload] Abort (core dumped)
> 
> 
> So the question is: why validate fails and why builder fails on this 
> particular test and why my common testing on both Solaris and Linux is 
> not able to duplicate the issue? What's so different between validate 
> and builders and between my common: perl boot; ./configure <some 
> params>; gmake -j12; cd testsuite; gmake THREADS=12 fast
> ?
> 
> Thanks!
> Karel