[GHC] #13274: GHC library is accumulating exported symbols at a very rapid rate.

[GHC]

#13274: GHC library is accumulating exported symbols at a very rapid rate.
-------------------------------------+-------------------------------------
           Reporter:  Phyx-          |             Owner:  (none)
               Type:  task           |            Status:  new
           Priority:  normal         |         Milestone:  8.4.1
          Component:  Compiler       |           Version:  8.0.1
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  Other
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:  #5987
Differential Rev(s):                 |         Wiki Page:
-------------------------------------+-------------------------------------
 On `20160617` libHSghc had `49610` exported symbols.

 This was gotten by doing `nm -g $5 | sed -nr
 's/^[a-z,A-Z,0-9]+\s([A-Z])\s(.+)$/\1 \2\n/p' | sed -r 's/^.+:.*$//g' |
 sed '/^\s*$/d' | sort | uniq -u` on all object files given to link
 `libHSghc`.

 After rebasing on newer commit `20161015` 4 months later it now has
 `124966` exported symbols. This is an explosive increase in symbol count
 of nearly 300%.

 On `20170208` this is now even higher `147927` which is another big
 increase.

 Unfortunately it's not easy for me to go back to the first build since my
 git has been pruned. But I do have the list for the latest jump.

 Should be investigated why. This rate will be problematic for #5987 as it
 means we'll keep adding DLLs. Currently with the current head it needs to
 split in 3 DLLs, and it's not far from a 4th.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13274>
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