gdb-startup-cmds.txt

# Set convenience vars for the start and end of the .text section
set $FLASH_START=&__isr_vector
set $FLASH_END=&__etext

# Search for the signature string indicating that the app was built with support
# for J-Link monitor mode debugging.
set logging file /dev/null
set logging redirect on
set logging on
find /b1 $FLASH_START, $FLASH_END, 'J', 'L', 'I', 'N', 'K', 'M', 'O', 'N', 'H', 'A', 'N', 'D', 'L', 'E', 'R'
set logging off
set logging redirect off

# Tell the user which type of debugging will being used.
if $numfound != 0
    echo J-LINK monitor handler detected: Enabling monitor mode debugging\n
else
    echo J-LINK monitor handler NOT detected: Using standard 'HALT' mode debugging\n
end

# Connect to the GDB server
echo Connecting to local GDB server\n
target remote localhost:2331

# Enable monitor mode debugging if available.
set logging file /dev/null
set logging redirect on
set logging on
if $numfound != 0
    mon exec SetMonModeDebug=1
    eval "mon exec SetMonModeVTableAddr=%p", $FLASH_START
else
    mon exec SetMonModeDebug=0
end
set logging off
set logging redirect off