Book Image

Mastering Go. - Second Edition

By : Mihalis Tsoukalos
Book Image

Mastering Go. - Second Edition

By: Mihalis Tsoukalos

Overview of this book

Often referred to (incorrectly) as Golang, Go is the high-performance systems language of the future. Mastering Go, Second Edition helps you become a productive expert Go programmer, building and improving on the groundbreaking first edition. Mastering Go, Second Edition shows how to put Go to work on real production systems. For programmers who already know the Go language basics, this book provides examples, patterns, and clear explanations to help you deeply understand Go’s capabilities and apply them in your programming work. The book covers the nuances of Go, with in-depth guides on types and structures, packages, concurrency, network programming, compiler design, optimization, and more. Each chapter ends with exercises and resources to fully embed your new knowledge. This second edition includes a completely new chapter on machine learning in Go, guiding you from the foundation statistics techniques through simple regression and clustering to classification, neural networks, and anomaly detection. Other chapters are expanded to cover using Go with Docker and Kubernetes, Git, WebAssembly, JSON, and more. If you take the Go programming language seriously, the second edition of this book is an essential guide on expert techniques.
Table of Contents (20 chapters)
Title Page

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.

The unsafe.go file used in this section does not contain any
special code – the presented commands will work on every valid Go
source file.

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...