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Mastering Go

You're reading from   Mastering Go Create Golang production applications using network libraries, concurrency, machine learning, and advanced data structures

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Product type Paperback
Published in Aug 2019
Publisher Packt
ISBN-13 9781838559335
Length 798 pages
Edition 2nd Edition
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Author (1):
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Mihalis Tsoukalos Mihalis Tsoukalos
Author Profile Icon Mihalis Tsoukalos
Mihalis Tsoukalos
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Table of Contents (15) Chapters Close

1. Go and the Operating System 2. Understanding Go Internals FREE CHAPTER 3. Working with Basic Go Data Types 4. The Uses of Composite Types 5. How to Enhance Go Code with Data Structures 6. What You Might Not Know About Go Packages and Functions 7. Reflection and Interfaces for All Seasons 8. Telling a UNIX System What to Do 9. Concurrency in Go – Goroutines, Channels, and Pipelines 10. Concurrency in Go – Advanced Topics 11. Code Testing, Optimization, and Profiling 12. The Foundations of Network Programming in Go 13. Network Programming – Building Your Own Servers and Clients 14. Machine Learning in Go 15. Other Books You May Enjoy

From Go code to machine code

In this section, you will learn how Go code is converted into machine code in much more detail. The Go program that is going to be used in this example is named machineCode.go and it is going to be presented in two parts.

The first part of machineCode.go is as follows:

package main 
 
import ( 
    "fmt" 
) 
 
func hello() { 
    fmt.Println("Hello!") 
} 

The second and final part of machineCode.go is as follows:

func main() { 
    hello() 
} 

After that, you can see machineCode.go translated into machine code as follows:

$ GOSSAFUNC=main GOOS=linux GOARCH=amd64 go build -gcflags "-S" machineCode.go
# runtime
dumped SSA to /usr/local/Cellar/go/1.12.4/libexec/src/runtime/ssa.html
# command-line-arguments
dumped SSA to ./ssa.html
os.(*File).close STEXT dupok nosplit size=26 args=0x18 locals=0x0
    0x0000 00000 (<autogenerated...
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