[GHC] #7040: ghci segfault on OS X X86_64 with foreign global data

[GHC]

#7040: ghci segfault on OS X X86_64 with foreign global data
------------------------------+---------------------------------------------
 Reporter:  luite             |          Owner:                
     Type:  bug               |         Status:  new           
 Priority:  normal            |      Component:  Compiler      
  Version:  7.4.2             |       Keywords:                
       Os:  Unknown/Multiple  |   Architecture:  x86_64 (amd64)
  Failure:  GHCi crash        |       Testcase:                
Blockedby:                    |       Blocking:                
  Related:                    |  
------------------------------+---------------------------------------------

Comment(by nus):

 Err, rts/Linker.c actually uses section_64 in this case:
 {{{
 #if x86_64_HOST_ARCH || powerpc64_HOST_ARCH
 #define mach_header mach_header_64
 #define segment_command segment_command_64
 #define section section_64
 #define nlist nlist_64
 #endif
 }}}

 {{{
 struct section_64 { /* for 64-bit architectures */
         char            sectname[16];   /* name of this section */
         char            segname[16];    /* segment this section goes in */
         uint64_t        addr;           /* memory address of this section
 */
         uint64_t        size;           /* size in bytes of this section
 */
         uint32_t        offset;         /* file offset of this section */
         uint32_t        align;          /* section alignment (power of 2)
 */
         uint32_t        reloff;         /* file offset of relocation
 entries */
         uint32_t        nreloc;         /* number of relocation entries */
         uint32_t        flags;          /* flags (section type and
 attributes)*/
         uint32_t        reserved1;      /* reserved (for offset or index)
 */
         uint32_t        reserved2;      /* reserved (for count or sizeof)
 */
         uint32_t        reserved3;      /* reserved */
 };
 }}}

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7040#comment:7>
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