The Go compiler

The Go compiler is executed with the help of the go tool, which does many more things than just generating executable files.

You can compile a Go source file using the go tool compile command. What
you will get is an object file, which is a file with the .o file extension. This is illustrated
in the output of the next commands, which were executed on a macOS Mojave
machine:

$ go tool compile unsafe.go
$ ls -l unsafe.o
-rw-r--r--  1 mtsouk  staff  6926 Jan 22 21:39 unsafe.o
$ file unsafe.o
unsafe.o: current ar archive
  

An object file is a file that contains object code, which is machine code in relocatable
format that, most of the time, is not directly executable. The biggest advantage of the
relocatable format is...