[GHC] #9268: internal error: evacuate(static): strange closure type -385875968

[GHC]

#9268: internal error: evacuate(static): strange closure type -385875968
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              Reporter:  brbr        |            Owner:
                  Type:  bug         |           Status:  new
              Priority:  high        |        Milestone:  7.10.1
             Component:  Compiler    |          Version:  7.8.2
            Resolution:              |         Keywords:
      Operating System:  Linux       |     Architecture:  Unknown/Multiple
       Type of failure:  Building    |       Difficulty:  Unknown
  GHC failed                         |       Blocked By:
             Test Case:              |  Related Tickets:
              Blocking:              |
Differential Revisions:              |
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Comment (by rwbarton):

 I'm having a strong sense of deja vu here.
 {{{
 (gdb) print p->payload[0]
 $19 = (struct StgClosure_ *) 0x7fc6475e2861 <stg_CHARLIKE_closure+1825>
 (gdb) print *((struct StgClosure_ *)0x7fc6475e2860)
 $20 = {header = {info = 0x403310
 <ghczmprim_GHCziTypes_Czh_static_info at plt>}, payload = 0x7fc6475e2868
 <stg_CHARLIKE_closure+1832>}
 }}}
 Note the info pointer pointing into the PLT. That's not good, there is no
 info table before the PLT entry!

 I seem to recall debugging the same issue and the problem being that LLVM
 was emitting `@function`s instead of `@objects`. Somehow the LLVM mangler
 isn't doing its job. But I don't understand why not. It seems to operate
 properly when I run it manually.

 Perhaps I should try building the stage1 compiler with the NCG and then
 the RTS and libraries with `-fllvm`, in case there is some pernicious bug
 in the LLVM backend affecting the LLVM mangler...

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9268#comment:5>
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