A go function to create pure backtrace which can be used to aggregate traces.

purestack.go

package main

import (
	"bytes"
	"fmt"
	"regexp"
	"runtime/debug"
)

func f() {
	g()
}
func g() {
	h()
}
func h() {
	fmt.Println(string(pureStack()))
}

func pureStack() []byte {
	stack := debug.Stack()
	lines := bytes.Split(stack, []byte{'\n'})[1:]
	newLines := make([][]byte, len(lines))
	r := regexp.MustCompile(`\(.*\)`)
	for i := 0; i < len(lines); i++ {
		line := lines[i]
		if i % 2 == 1 {
			newLines[i] = line
			continue
		}
		line = r.ReplaceAll(line, []byte{})
		newLines[i] = line
	}
	return bytes.Join(newLines, []byte{'\n'})
}

func main() {
	f()
}