I'm using the 8.1.0 SDK, with the S130 soft device. This is from the central version, it seems to crash on startup without ever hitting main()
Starting program: firmware_client_server/central/armgcc/_build/nrf51422_xxac_s130.out
0xfffffffe in ?? ()
(gdb) bt
#0 0xfffffffe in ?? ()
#1 <signal handler called>
#2 0x00010204 in ?? ()
#3 0xffffffff in ?? ()
#4 0xffffffff in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)