Similar to Xdebug, DTrace also didn’t want to work and failed with the same error, so I tried the same trick, and it worked.

Follow the instructions from Lee Packham’s blog but configure it as a 64-bit application:

1. tar xzf dtrace-1.0.3fixtar.gz
2. cd dtrace-1.0.3+fix
3. phpize
4. CFLAGS=’-arch x86_64′ ./configure –with-dtrace
5. make
6. make install

So far so good, the module is loaded. Now let’s see if Instruments will do its thing.