go/src/runtime/pprof/pe.go

// Copyright 2022 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package pprof

import "os"

// peBuildID returns a best effort unique ID for the named executable.
//
// It would be wasteful to calculate the hash of the whole file,
// instead use the binary name and the last modified time for the buildid.
func peBuildID(file string) string {
	s, err := os.Stat(file)
	if err != nil {
		return file
	}
	return file + s.ModTime().String()
}