fx gdb

Run GDB, the GNU DeBugger.

USAGE:
    fx gdb [ARGUMENTS to GDB...]

This simply runs the prebuilt GDB binary with the arguments given.
See https://www.gnu.org/software/gdb/documentation/ for details.

NOTE:

On Linux, it may be necessary to run:
```shell
sudo apt install libpython3.8 libdebuginfod1

before running the prebuilt GDB binary.

[gdb source code](https://cs.opensource.google/fuchsia/fuchsia/+/main:tools/devshell/contrib/gdb.fx)