arm-none-eabi-gcc -march=armv7-a -mthumb  t.c -Wl,-nostdlib --emit-relocs

target remote com7
set debug remote 1 
set remotetimeout 30
set remotelogfile log.txt
add-symbol-file c:/work/edk2/Build/BeagleBoard/DEBUG_GCC48/ARM/BeagleBoardPkg/Sec/Sec/DEBUG/BeagleBoardSec.dll 0x80008360


qSupported
Hg0

Hc-1
qC
qAttached