# GDB ### View breakpoints ``` # shorthand i b Num Type Disp Enb Address What 1 breakpoint keep y 0x00403710 # long hand info break Num Type Disp Enb Address What 1 breakpoint keep y 0x00403710 ``` ### Remove breakpoint ``` # shorthand d 1 gef➤ info break No breakpoints or watchpoints. # long hand delete 1 ``` ### Set breakpoint on memory address ``` info functions --snip-- 0x00403710 nv::Handler::cmdGet(nv::message const&) --snip-- break *0x00403710 Breakpoint 1 at 0x403710 ``` ### GDB Server * setting up a gdb server can be very useful for embedded systems. * it is nice to have plugins for gdb like GEF that you cannot bring with you on the embedded system. This is a good use case for gdb-server and then connecting with your gdb client which can have the plugins you want to assist VR * start the server attaching to a process that is running ``` ./gdbserver-7.12-mips-be 0.0.0.0:65000 --attach 204 Attached; pid = 204 Listening on port 65000 ``` * connect with your client 
gdb
target remote 192.168.15.7:65000
Remote debugging using 192.168.15.7:65000
--snip--
[*] Failed to find objfile or not a valid file format: [Errno 2] No such file or directory: '/proc/204/root/nova/bin/login'
Invalid hex digit 59
* you can now run all your normal gdb commands!