lots of 68k related questions..

[Robert Harmon]

We been using a similiar setup here for about 3 years, Cross compiling from Sunos4.1.3 to 68360.

Use COFF not Aout. Cygnus does not support AOUT.
check your install hierarchy for linker scripts... for me thats...

/usr/local/m68k-coff/lib/ldscripts

there several m68kcoff examples, We actually reused/modified scripts from our Greenhills linker

There are info pages in the LD section on linker scripts too.

What BDM are you using?  We''ve been using expensive AMC BDMs but I dont think 
I can connect them to GDB, We have to use AMCs debugger.   What BDM brand works with GDB?

How is the symbolic debugging support with that debug tool chain?


-----Original Message-----
From:	michael dorin [SMTP:mike@chaski.com]
Sent:	Tuesday, February 24, 1998 11:41 AM
To:	crossgcc@cygnus.com
Subject:	lots of 68k related questions..

----- Forwarded message from Doug Evans -----
Now that I have my cross compiler building, I am still confused by a few
things.

Here is my short list of questions:

1) What is the difference between coff and aout formats?  Why would
I want to use one instead of the other?  This is for embedded applications.

2) How/where do I configure my memory map?  Where do I put my initialization
code? etc?

3) I got the gdb to build using the patches which should allow it to
communicate using a BDM port.  How do I build something that gdb can
read, etc.

4) When I fire up gdb I get a memory corruption error.  Is this do
to my build or is it some know thing about gdb.

By the way, I am building for red-hat 5.0.  
gdb-4.16
gcc 2.7.2.3
newlib 1.80
binutils 2.8.1.0.1

Thanks for any and all help.

- -Mike Dorin

- -Mike
------- End of forwarded message -------

----- End of forwarded message from Doug Evans -----