[PATCH] add --reverse option to objcopy

[Nathan Froyd <froydnj at codesourcery dot com>]

The attached patch is a forward-port of a patch originally proposed by
Thomas de Lellis:

http://sourceware.org/ml/binutils/2000-03/msg00319.html

The rationale from the original message:

  This patch solves problems trying to use the existing tools, to
  generate a ROM images for certain target systems where the byte order
  implemented in hardware did not match the endian the processor
  used. The ROM programmer did not have this functionality built in
  unfortunately.

  A new option "--reverse" has been added swap bytes within
  an output section... Given bytes in the order:

  01 02 03 04 05 06 07 08

  Allows users to re-order them as:

  02 01 04 03 06 05 08 07 (2 byte reversal)
  04 03 02 01 08 07 06 05 (4 byte reversal)
  03 04 01 02 07 08 05 06 (combination 2 & 4 byte reversal)

There was no comment on his original message, and we have customers who
still find this functionality useful.

Changes from the original patch:

* The original patch's documentation has been converted into texinfo;
* Patch has been cleaned up a little bit;
* A DejaGNU testcase has been added.

OK?

-Nathan

Attachment: reverse.patch
Description: Text document