instructions.md

Using gdb

Step 1

Build the code

go build -gcflags "-N -l" -o gdb_sandbox debug.go

The code generated by the gc compiler includes inlining of function invocations and registerization of variables.

These optimizations can sometimes make debugging with gdb harder.

To disable them when debugging, pass the flags -gcflags "-N -l" to the go command used to build the code being debugged.

Step 2

Start gdb gdb gdb_sandbox

Step 3

define breakpoint b day47/debug.go:6

Step 4

let's start debugging run

Step 5

navigate through lines using s until line 11

tip: use n inside greet function

Step 6

print variable p greetingArg

Step 7

learn more comands typing help

Step 8

type q to exit