[Patch] Convert PE relocatable modules to ELF with objcopy

Christopher Faylor cgf-use-the-mailinglist-please@cygwin.com
Sun Oct 21 21:15:00 GMT 2007


On Sun, Oct 21, 2007 at 10:30:20PM +0200, Christian Franke wrote:
> objcopy from binutils-20060817-1 cannot convert pe-i396 to elf32-i386. The 
> offsets of the pc-relative relocation entries are not converted properly.
> (http://sourceware.org/bugzilla/show_bug.cgi?id=970)
>
> I recently started a Cygwin port of GRUB2 ([Maybe ITP later]-).
> (http://lists.gnu.org/archive/html/grub-devel/2007-10/msg00071.html)
>
> GRUB2 loadable modules use ELF format, therefore, some PE to ELF conversion 
> is required to build on Cygwin.
>
> The first working Cygwin patch for GRUB2 includes a workaround to load the 
> broken ELF modules produced by objcopy. It would be desirable to fix this 
> in objcopy itself.
>
> A patch is attached.
>
> 2007-10-21  Christian Franke  <franke@computer.org>
>
> 	* objcopy.c (fix_relocation): New function to
> 	fix pc-relative relocation offset, for PE to ELF only.
> 	(copy_section): Call fix_relocation for	section data.

Please use the binutils mailing list for binutils patches.

cgf

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