[Etherboot-developers] [COMMIT] Lots of little fixes to the devel tree.

[Eric W B. <ebi...@ln...>]

There are several noticeable steps forward.

 - The serial code is now in C making it more maintainable, there
   were a few lines in serial_init that were just wrong.

 - The bios32 pci code is now relocatable.

 - I have abstracted out the timer code a bit more for those people
   with weird timers.  I haven't implemented any new timers but weird
   timers should fit in much more cleanly now.

 - The liloprefix and comprefix code is updated.  I changed the build
   just a little bit to ensure all segment relative offsets were marked
   as such.  And then I forgot to problems revealed in liloprefix. 

Besides drivers that don't do multicast or handle relocation it looks
like only the old boot from disk code remains broken.

I am getting an e1000 driver finished that must run under the pcbios,
so I should catch most of the pcbios bugs.

And my CVS commit comments....

- Replace serial.S with serial.c
- Cleanup the com preserve code
- Make the pci code relocateable
- Fix the comprefix and the liloprefix to compile again
- Make relocation the default for the non LinuxBIOS code
- Added a bios32_call function to pcbios.S
- Update the boot from disk code, adding the concept of a failsafe image.
- Fix linuxbios.c so we actually pay attention to the boot order specified
- Minor timer cleanup, now when we switch timers we can replace all of
  the timer functions.

Eric