[GHC] #8237: checkProddableBlock: invalid fixup in runtime linker (Windows)

6 Sep 2013

      #8237: checkProddableBlock: invalid fixup in runtime linker (Windows)
----------------------------------+---------------------------------
       Reporter:  ezyang          |             Owner:
           Type:  bug             |            Status:  new
       Priority:  normal          |         Milestone:  7.8.1
      Component:  Runtime System  |           Version:  7.7
       Keywords:                  |  Operating System:  Windows
   Architecture:  x86_64 (amd64)  |   Type of failure:  None/Unknown
     Difficulty:  Unknown         |         Test Case:
     Blocked By:                  |          Blocking:
Related Tickets:                  |
----------------------------------+---------------------------------
 I attempted to load a very simple C file into GHC using the linker and got
 this error. The C file is:

 {{{
 #include <stdio.h>
 static void f(void); // __attribute__((constructor));
 static void f(void)
 {
         printf("Hooray!");
 }
 }}}

 and the test program:

 {{{
 {-# LANGUAGE ForeignFunctionInterface #-}
 import Foreign.C.String

 main = do
     initLinker
     withCWString "test.o" $ \s -> loadObj s
     resolveObjs

 foreign import ccall "initLinker" initLinker :: IO ()
 foreign import ccall "loadObj" loadObj :: CWString -> IO Int
 foreign import ccall "resolveObjs" resolveObjs :: IO ()
 }}}

 Test is run as:

 {{{
 bash.exe-3.1$ gcc -c test.c
 bash.exe-3.1$ ../ghc-init/inplace/bin/ghc-stage2 --make foo.hs -debug
 -fforce-recomp
 [1 of 1] Compiling Main             ( foo.hs, foo.o )
 Linking foo.exe ...
 bash.exe-3.1$ ./foo
 foo.exe: Unknown PEi386 section name `.eh_frame' (while processing:
 test.o)
 foo.exe: internal error: checkProddableBlock: invalid fixup in runtime
 linker: 002c0154
     (GHC version 7.7.20130905 for i386_unknown_mingw32)
     Please report this as a GHC bug:
 http://www.haskell.org/ghc/reportabug

 This application has requested the Runtime to terminate it in an unusual
 way.
 Please contact the application's support team for more information.
 }}}

 More useful info:

 {{{
 bash.exe-3.1$ objdump -s -j .text test.o

 test.o:     file format pe-i386

 Contents of section .text:
  0000 5589e583 ec18c704 24000000 00e80000  U.......$.......
  0010 0000c9c3                             ....

 bash.exe-3.1$ objdump -r -j .text test.o

 test.o:     file format pe-i386

 RELOCATION RECORDS FOR [.text]:
 OFFSET   TYPE              VALUE
 00000009 dir32             .rdata
 0000000e DISP32            _printf

 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8237>
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