Mastering Embedded Linux Programming - Second Edition

Connecting GDB and gdbserver

The connection between GDB and gdbserver can be through a network or serial interface. In the case of a network connection, you launch gdbserver with the TCP port number to listen on and, optionally, an IP address to accept connections from. In most cases, you don't care which IP address is going to connect, so you can just provide the port number. In this example, gdbserver waits for a connection on port 10000 from any host:

# gdbserver :10000 ./hello-worldProcess hello-world created; pid = 103Listening on port 10000

Next, start the copy of GDB from your toolchain, pointing it at an unstripped copy of the program so that GDB can load the symbol table:

$ arm-poky-linux-gnueabi-gdb hello-world

In GDB, use the ...