[GHC] #9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output from subprocess

[GHC]

#9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output
from subprocess
-------------------------------------+-------------------------------------
        Reporter:  juhpetersen       |                   Owner:
            Type:  bug               |                  Status:  new
        Priority:  high              |               Milestone:
       Component:  Compiler          |                 Version:  7.11
      Resolution:                    |                Keywords:
Operating System:  Linux             |            Architecture:  aarch64
 Type of failure:  Installing GHC    |               Test Case:
  failed                             |                Blocking:
      Blocked By:                    |  Differential Revisions:
 Related Tickets:                    |
-------------------------------------+-------------------------------------

Comment (by juhpetersen):

 Replying to [comment:15 rwbarton]:

 Thanks for the analysis and comments.

 > On Linux x86_64 I see these references to the stdout Handle in ghc-pkg:
 :
 > What is the corresponding output on your ARM system?

 For the static 7.8.4 build (ie with DYNAMIC_GHC_PROGRAMS=NO) I get:

 {{{
 $ objdump -DR /usr/lib64/ghc-7.8.4/bin/ghc-pkg | grep stdout
 00000000013290b0 <stdout>:
                         13290b0: R_AARCH64_COPY stdout
 }}}

 Whereas the dynamic builds for 7.8.4 and 7.10.1 give:

 {{{
 $ objdump -DR
 /home/petersen/rpmbuild/BUILDROOT/ghc-7.8.4-42.2.fc22.aarch64/usr/lib64/ghc-7.8.4/bin
 /ghc-pkg | grep stdout
                         470af8: R_AARCH64_GLOB_DAT
 base_GHCziIOziHandleziFD_stdout_closure
 000000000048b908 <base_GHCziIOziHandleziFD_stdout_closure>:
                         48b908: R_AARCH64_COPY
 base_GHCziIOziHandleziFD_stdout_closure
 }}}

 I think this 7.8.4 build was with ld.gold but it didn't seem to help.
 It would be good if someone else could also confirm that.

 If it should help I can regenerate the diffs with real addresses.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9673#comment:22>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler