Elf frysk-imports bindings change

[Phil Muldoon <pmuldoon at redhat dot com>]

I've checked in a patch that extends the elf bindings in frysk-imports 
to support writing back to the elf native data structures. This allows 
us to construct a an elf file  from Java.  This is preparing the way for 
writing core file from a frysk environment. I also added an elf error 
lookup bindings.

Regards

Phil


2006-10-11  Phil Muldoon  <pmuldoon@redhat.com>

       * cni/Elf.cxx: (elf_begin): Check args to allow writing to
       elf files.
       (elf_get_last_error_msg): New.
       (elf_get_last_error_no): New.
       (elf_updatehdr): New.
       (elf_init_core_header): New. Temporary.
       (elf_updatephdr): New.

       * Elf.java (Elf): Add a boolean constructor switch
       for write/read.
       (updateEHeader): New. Write Elf header back to native
       structure.
       (initializeCoreHeader): Temporary. Convienience function.
       (updatePHeader): New. Write the program segment back to native
       structure.
       (getLastErrorMsg): New. Get the error message corresponding to
       entry below.
       (getLastErrorNo): New. Get the error number set if the last
       elf function failed.