Add bpf_get_current_task() helper definition (#650)
Add bpf_get_current_task() helper definition (#650)

Signed-off-by: Omar Sandoval <888fed946b7dbf3db82157abfe4a5af66080e99e@fb.com>
brendangregg/bcc,brendangregg/bcc,tuxology/bcc,iovisor/bcc,romain-intel/bcc,tuxology/bcc,romain-intel/bcc,tuxology/bcc,shodoco/bcc,romain-intel/bcc,shodoco/bcc,mcaleavya/bcc,mcaleavya/bcc,brendangregg/bcc,iovisor/bcc,mkacik/bcc,mkacik/bcc,shodoco/bcc,shodoco/bcc,romain-intel/bcc,mcaleavya/bcc,tuxology/bcc,mcaleavya/bcc,mkacik/bcc,iovisor/bcc,iovisor/bcc,mcaleavya/bcc,iovisor/bcc,romain-intel/bcc,brendangregg/bcc,tuxology/bcc,brendangregg/bcc,mkacik/bcc,mkacik/bcc,shodoco/bcc