Embed file in Go using ELF section

main.go

package main

import (
	"debug/elf"
	"fmt"
	"os"
)

func main() {
	selfPath, _ := os.Executable()
	selfFile, _ := os.Open(selfPath)
	selfElf, _ := elf.NewFile(selfFile)
	var data []byte
	for _, s := range selfElf.Sections {
		if s.Name == "myfile" {
			data, _ = s.Data()
		}
	}
	fmt.Println(string(data))
}

Makefile

build:
	go build -o _main
	objcopy --add-section myfile=myfile _main main