K 10
svn:author
V 6
andrew
K 8
svn:date
V 27
2015-02-19T12:20:21.340899Z
K 7
svn:log
V 763
Use the ARM unwinder with dtrace to extract the stack when asked. With this
dtrace is able to display a stack trace similar to the one below.

# dtrace -p 603 -n 'tcp:kernel::receive { stack(); }'
  0     70                         :receive
              kernel`ip_input+0x140
              kernel`netisr_dispatch_src+0xb8
              kernel`ether_demux+0x1c4
              kernel`ether_nh_input+0x3a8
              kernel`netisr_dispatch_src+0xb8
              kernel`ether_input+0x60
              kernel`cpsw_intr_rx+0xac
              kernel`intr_event_execute_handlers+0x128
              kernel`ithread_loop+0xb4
              kernel`fork_exit+0x84
              kernel`swi_exit
              kernel`swi_exit

Tested by:	gnn
Sponsored by:	ABT Systems Ltd

END