[GHC] #11758: Drop x86_64 binutils <2.17 hack

[GHC]

#11758: Drop x86_64 binutils <2.17 hack
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        Reporter:  bgamari           |                Owner:  avd
            Type:  task              |               Status:  closed
        Priority:  normal            |            Milestone:  8.2.1
       Component:  Compiler (NCG)    |              Version:  8.0.1-rc2
      Resolution:  fixed             |             Keywords:  newcomer
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  12433             |  Differential Rev(s):  Phab:D2426
       Wiki Page:                    |
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Comment (by simonpj):

 This patch made the ghc-stage2 compiler seg-fault, on 64-bit Windos.  It
 seg-faults when doing anything -- compiling `HelloWorld.hs` or even `ghc
 --version`.

 It took me a full day of bisection to find this.  Very painful.  It would
 be so great if we had continuous-integration on Windows going.  I hate
 playing the role of Windows test engine.

 Anyway, here's the revert patch.  Would someone like to work out what is
 going on, and re-apply when fixed?
 {{{
 commit b2c5e4ce5c44a7be7c2b81c2600cae40c5b225ad
 Author: Simon Peyton Jones <simonpj at microsoft.com>
 Date:   Thu Aug 18 18:16:01 2016 +0100

     Revert "codeGen: Remove binutils<2.17 hack, fixes T11758"

     This reverts commit e3e2e49a8f6952e1c8a19321c729c17b294d8c92.

     I'm reverting because it makes ghc-stage2 seg-fault on
     64-bit Windows machines.  Even ghc-stage2 --version seg-faults.

  compiler/nativeGen/X86/CodeGen.hs | 15 ++++++++++++++-
  compiler/nativeGen/X86/Ppr.hs     | 23 +++++++++++++++++++++--
  includes/rts/storage/InfoTables.h | 11 +++++++++++
  3 files changed, 46 insertions(+), 3 deletions(-)
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11758#comment:6>
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