Re: Problems with load

[Andrew Cagney <ac131313@redhat.com>]

Several things to check:

- Is the section being loaded marked as LOAD?
Run 'objdump -h <pgm>' on the executable being loaded and check that all 
the sections that GDB should load have the LOAD attribute.

- Is GDB transfering the data?
There should be output from "load" indicating what GDB is transfering. 
Is the missing section in the list.

- Is GDB really transfering the data?
Enabe remote protocol debugging "(gdb) set debug remote 1" and then 
perform a load.  You should see memory write packets to the sections in 
question.

If all of these are ok, then the problem is in the remote end.

Andrew

> I've problems using the gdb load instruction. The command is executed.
> But the file is no written correctly into the RAM. Some addresses are
> not written. They still contain the value they had prior to the load
> command. This behavior is address indepentend. If I move the progam into
> anonther location the problem still exist.
> 
> I tested some things and discovert that the set instruction is not
> executed if the data type is char or short. (Readaccess with datatype
> char and shor works.) I'm not sure if this my cause the load problem. If
> the CPU executes byte or short writes to the memory it works. So in IMHO
> it can't be a hardwareproblem.
> 
> I think that the problem is caused due to a gdb configuration error. I
> tried several settings (e.g. set download-write-size, set remote
> memory-write-packet-size)but it doesn't help.
> 
> I use <target remote localhost:8888> where OcdLibDemon from Macraigor is
> listening. If I use <monitor char> or <monitor short> to write to the
> address it works. Because of that, the OcdLibDemon configuration <-c
> PPC5XX8XX -d WIGGLER -a 1 -s 1> should be correct.
> 
> Which settings I can use to modify gdbs load and set related behaviour?
> 
> Thanks and regards,
> Kai
> 
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