GDB Cheat Sheet

Launch GDB

# - break at first line in main
 # - binary + application arguments to use
 gdb \
 -ex "break +2" \
 -ex "run" \
 --args <path to binary>/<binary> <application arguments>

Run

(gdb) run # start program to be debugged

Break

# break at certain position
(gdb) break (b) <full path to file>/<filename.extension>:<line number>
# if file in shared library: confirm future load information

Break in the main function

(gdb) break main

Step

(gdb) step (s) # goes to next instruction
(gdb) next (n) # jumps to next breakpoint

View Variable Values

(gdb) p <variablename>

Stop Debugging

(gdb) kill # terminates program
(gdb) quit # terminates gdb session

Launch GDB for remote debugging

(gdb) -x atxtfile

 example text file: 
target remote tstci02:10000 break 2
#symbol-file remote:/opt/slits/fesa/MBoxDeployUnit_M
symbol-file ../../../build/bin/i686/MBoxDeployUnit_M
directory ../../../

Use GDB for Remote Debugging

(gdb) b / break main
(gdb) c / continue