github.com/go4org/go4@v0.0.0-20200104003542-c7e774b10ea0/osutil/exec_plan9.go (about) 1 // Copyright 2015 The go4 Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 // +build plan9 16 17 package osutil 18 19 import ( 20 "fmt" 21 "os" 22 "path/filepath" 23 "syscall" 24 ) 25 26 func executable() (string, error) { 27 fn := fmt.Sprintf("/proc/%d/text", os.Getpid()) 28 f, err := os.Open(fn) 29 if err != nil { 30 return "", err 31 } 32 defer f.Close() 33 p, err := syscall.Fd2path(int(f.Fd())) 34 return filepath.Clean(p), err 35 }