| // Copyright 2016 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. |
| |
| // +build linux netbsd dragonfly nacl |
| |
| package os |
| |
| import ( |
| "errors" |
| "runtime" |
| ) |
| |
| // We query the executable path at init time to avoid the problem of |
| // readlink returns a path appended with " (deleted)" when the original |
| // binary gets deleted. |
| var executablePath, executablePathErr = func() (string, error) { |
| var procfn string |
| switch runtime.GOOS { |
| default: |
| return "", errors.New("Executable not implemented for " + runtime.GOOS) |
| case "linux", "android": |
| procfn = "/proc/self/exe" |
| case "netbsd": |
| procfn = "/proc/curproc/exe" |
| case "dragonfly": |
| procfn = "/proc/curproc/file" |
| } |
| return Readlink(procfn) |
| }() |
| |
| func executable() (string, error) { |
| return executablePath, executablePathErr |
| } |