On Wed, Aug 18, 2010 at 1:53 AM, Mark Cave-Ayland mark.cave-ayland@siriusit.co.uk wrote:
Steven Noonan wrote:
Hi all,
I just compiled OpenBIOS (from trunk) with a ton of CONFIG_DEBUG* options enabled, but I'm not getting any output from them (at least, under QEMU). printk() seems to work for this portion:
============================================================= OpenBIOS 1.0 [Aug 17 2010 21:39] Configuration device id QEMU version 1 machine id 2 CPUs: 1 Memory: 1024M UUID: 00000000-0000-0000-0000-000000000000 CPU type PowerPC,G4
But nothing after that point gets printed to the serial device.
Any ideas where I should be looking?
- Steven
Hi Steven,
Have you enabled the CONFIG_DEBUG* options in the right file? For example, for debugging PPC you need to make the changes to config/examples/ppc_config.xml if you are doing a native build and config/examples/cross-ppc_config.xml if you are using a cross-compiler.
Yeah, I edited cross-ppc_config.xml, which is correct for my setup.
Also, "make clean" isn't sufficient for a rebuild based upon a configuration change. Once you've made the configuration changes, you'll need to blow away the obj-ppc directory and re-run the switch-arch script to regenerate it with the new configuration.
Aha, this was it. I can't recall why, but there was some reason I was avoiding deleting the obj-ppc directory and rebuilding after that.
Thanks for the help!
- Steven