ERROR: ctfconvert: *.o doesn't have type data to convert

[Mark Johnston]

On Fri, Mar 04, 2016 at 08:47:44AM -0800, Chris H wrote:
> I've just finished building world, and am building a custom kernel.
> (11-CURRENT svn co from yesterday, and on an i386)
> 
> I see the following message emitted on every lib being processed
> during the build:
> 
> ERROR: ctfconvert: *.o doesn't have type data to convert
> (replace the asterisk (*) with any given library)

This is probably because your kernel config contains
"makeoptions WITH_CTF=1" but not "DEBUG=-g". ctfconvert has nothing to
do because no DWARF info is available, and emits that error as a result.

> 
> Will this result in an unusable kernel? Should I be concerned?

No, it'll work fine. Some parts of DTrace will not work.