debugging applets with gdb

[Stuart Hughes]

Answering my own question.  This seems to work for me (example debugging
df, adjust your IP addr etc):

* build busybox with debugging enabled.

* On the target:
# gdbserver :1234  /bin/busybox

* On the host:
$ ddd --debugger bin/gdb rpm/BUILD/busybox-1.1.3/busybox_unstripped
(gdb) b main
(gdb) set follow-fork-mode child
(gdb) target remote 192.168.0.253:1234
(gdb) cont
(gdb) next
(gdb) set bb_applet_name="df"
(gdb) b df_main
(gdb) cont

Regards, Stuart


On Fri, 2006-08-04 at 14:23 +0100, Stuart Hughes wrote:
> I'd like to debug the 'df' applet as it is not outputting anything for
> the / root partition when running nfsroot and devfs.
> 
> Is there a way of building these stand-alone so you can debug them with
> gdb/gdbserver? or is there some other easy way to debug busybox applets?
> 
> Regards, Stuart
> 
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