arm-none-eabi-gdb miniblink.elf (gdb) file miniblink.elf (gdb) target extended-remote /dev/cu.usbmodemD5D7A9C1 (gdb) monitor tpwr enable (gdb) monitor swdp_scan (gdb) attach 1 

{ "version": "0.2.0", "configurations": [ { "name": "Launch", "type": "cppdbg", "request": "launch", "miDebuggerPath": "/usr/local/bin/arm-none-eabi-gdb", "targetArchitecture": "arm", "program": "${workspaceRoot}/miniblink.elf", "setupCommands": [ {"text": "file '${workspaceRoot}/miniblink.elf'"}, {"text": "target extended-remote /dev/cu.usbmodemD5D7A9C1"}, {"text": "monitor tpwr enable"}, {"text": "monitor swdp_scan"}, {"text": "attach 1"} ], "launchCompleteCommand": "None", "filterStderr": false, "filterStdout": false, "externalConsole": false, "cwd": "${workspaceRoot}" } ] } 

WARNING: Debugger executable '/usr/local/bin/arm-none-eabi-gdb' is not signed. As a result, debugging may not work properly. =thread-group-added,id="i1" GNU gdb (GNU Tools for ARM Embedded Processors) 7.6.0.20140731-cvs Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "--host=x86_64-apple-darwin10 --target=arm-none-eabi". For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>. Loaded 'shared libraries loaded at this time.'. Cannot find or open the symbol file. Note: automatically using hardware breakpoints for read-only addresses.