[GHC] #14931: Segfault compiling files with -fprof-all

GHC ghc-devs at haskell.org
Fri Mar 16 13:23:15 UTC 2018


#14931: Segfault compiling files with -fprof-all
-------------------------------------+-------------------------------------
        Reporter:  RyanGlScott       |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Profiling         |              Version:  8.4.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  crash or panic                     |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by RyanGlScott):

 This bug has an interesting history. On GHC 8.0.2, doing the same thing
 yielded [https://github.com/llvm-hs/llvm-
 hs/issues/86#issuecomment-301194192 this error]:

 {{{
 $ /opt/ghc/8.0.2/bin/ghc -c -O -static -dynamic-too -dynosuf dyn_o
 -dynhisuf dyn_hi State.hs
 $ /opt/ghc/8.0.2/bin/ghc -c -O -prof -osuf p_o -hisuf p_hi State.hs
 -fprof-auto
 $ /opt/ghc/8.0.2/bin/ghc -c -O -prof -osuf p_o -hisuf p_hi Bug.hs

 ByteCodeLink.lookupCE
 During interactive linking, GHCi couldn't find the following symbol:
   State_zdfMonadStatesStateTzuzdcget_closure
 This may be due to you not asking GHCi to load extra object files,
 archives or DLLs needed by your current session.  Restart GHCi, specifying
 the missing library using the -L/path/to/object/dir and -lmissinglibname
 flags, or simply by naming the relevant files on the GHCi command line.
 Alternatively, this link failure might indicate a bug in GHCi.
 If you suspect the latter, please send a bug report to:
   glasgow-haskell-bugs at haskell.org
 }}}

 However, on GHC 8.2.1 and 8.2.2, it appeared to work without issue.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14931#comment:1>
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