PrintFunctionNames.go

package main

import (
	"debug/dwarf"
	"debug/elf"
	"fmt"
	"io"
	"log"
	"os"
)

func main() {

	elfFile, err := elf.Open(os.Args[1])
	if err != nil {
		log.Fatal(err)
	}

	dwarfData, err := elfFile.DWARF()
	if err != nil {
		log.Fatal(err)
	}

	entryReader := dwarfData.Reader()

	for {
		// Read all entries in sequence
		entry, err := entryReader.Next()
		if err == io.EOF {
			// We've reached the end of DWARF entries
			break
		}

		// Check if this entry is a function
		if entry.Tag == dwarf.TagSubprogram {

			// Go through fields
			for _, field := range entry.Field {

				if field.Attr == dwarf.AttrName {
					fmt.Println(field.Val.(string))
				}
			}
		}
	}
}