[GHC] #7687: ghc panic on TH and deriveJSON

[GHC]

#7687: ghc panic on TH and deriveJSON
---------------------------------+------------------------------------------
    Reporter:  guest             |       Owner:                    
        Type:  bug               |      Status:  new               
    Priority:  normal            |   Milestone:                    
   Component:  Template Haskell  |     Version:  7.4.2             
    Keywords:  TH                |          Os:  Windows           
Architecture:  x86_64 (amd64)    |     Failure:  Compile-time crash
  Difficulty:  Unknown           |    Testcase:                    
   Blockedby:                    |    Blocking:                    
     Related:                    |  
---------------------------------+------------------------------------------
Changes (by igloo):

  * difficulty:  => Unknown


Old description:

> {-# LANGUAGE CPP,TemplateHaskell #-}
> module Main (main) where
>
> import Data.Aeson.TH
> data Test     = Test Int deriving Show
> deriveJSON id ''Test
> main = return ()
>
> will give
>
> Building aeson-test-0.0.1...
> Preprocessing test suite 'test-aeson-test' for aeson-test-0.0.1...
> [1 of 1] Compiling Main             ( src\Main.hs, dist\build\test-aeson-
> test\test-aeson-test-tmp\Main.o )
> Loading package ghc-prim ... linking ... done.
> Loading package integer-gmp ... linking ... done.
> Loading package base ... linking ... done.
> Loading package array-0.4.0.0 ... linking ... done.
> Loading package bytestring-0.9.2.1 ... linking ... done.
> Loading package deepseq-1.3.0.0 ... linking ... done.
> Loading package containers-0.4.2.1 ... linking ... done.
> ghc.exe: panic! (the 'impossible' happened)
> Loading package text-0.11.2.3 ... linking ... done.
>   (GHC version 7.4.2 for i386-unknown-mingw32):
> Loading package attoparsec-0.10.4.0 ... linking ... done.
>         loadObj
> "C:\\Users\\User\\AppData\\Roaming\\cabal\\hashable-1.2.0.5\\ghc-7.4.2\\HShashable-1.2.0.5.o":
> failed
> Loading package blaze-builder-0.3.1.0 ... linking ... done.
>
> Loading package dlist-0.5 ... linking ... done.
> Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug
> Loading package hashable-1.2.0.5 ...
>
> ghc.exe: Unknown PEi386 section name `.text.startup' (while processing:
> C:\Users\User\AppData\Roaming\cabal\hashable-1.2.0.5\ghc-7.4.2\HShashable-1.2.0.5.o)

New description:

 {{{
 {-# LANGUAGE CPP,TemplateHaskell #-}
 module Main (main) where

 import Data.Aeson.TH
 data Test     = Test Int deriving Show
 deriveJSON id ''Test
 main = return ()

 will give

 Building aeson-test-0.0.1...
 Preprocessing test suite 'test-aeson-test' for aeson-test-0.0.1...
 [1 of 1] Compiling Main             ( src\Main.hs, dist\build\test-aeson-
 test\test-aeson-test-tmp\Main.o )
 Loading package ghc-prim ... linking ... done.
 Loading package integer-gmp ... linking ... done.
 Loading package base ... linking ... done.
 Loading package array-0.4.0.0 ... linking ... done.
 Loading package bytestring-0.9.2.1 ... linking ... done.
 Loading package deepseq-1.3.0.0 ... linking ... done.
 Loading package containers-0.4.2.1 ... linking ... done.
 ghc.exe: panic! (the 'impossible' happened)
 Loading package text-0.11.2.3 ... linking ... done.
   (GHC version 7.4.2 for i386-unknown-mingw32):
 Loading package attoparsec-0.10.4.0 ... linking ... done.
         loadObj
 "C:\\Users\\User\\AppData\\Roaming\\cabal\\hashable-1.2.0.5\\ghc-7.4.2\\HShashable-1.2.0.5.o":
 failed
 Loading package blaze-builder-0.3.1.0 ... linking ... done.

 Loading package dlist-0.5 ... linking ... done.
 Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug
 Loading package hashable-1.2.0.5 ...

 ghc.exe: Unknown PEi386 section name `.text.startup' (while processing:
 C:\Users\User\AppData\Roaming\cabal\hashable-1.2.0.5\ghc-7.4.2\HShashable-1.2.0.5.o)
 }}}

--

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7687#comment:2>
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