executable_solaris.go

     1  // Copyright 2016 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package os
     6  
     7  import (
     8  	"syscall"
     9  	_ "unsafe" // for linkname
    10  )
    11  
    12  //go:linkname executablePath
    13  var executablePath string // set by sysauxv in ../runtime/os3_solaris.go
    14  
    15  var initCwd, initCwdErr = Getwd()
    16  
    17  func executable() (string, error) {
    18  	path := executablePath
    19  	if len(path) == 0 {
    20  		path, err := syscall.Getexecname()
    21  		if err != nil {
    22  			return path, err
    23  		}
    24  	}
    25  	if len(path) > 0 && path[0] != '/' {
    26  		if initCwdErr != nil {
    27  			return path, initCwdErr
    28  		}
    29  		if len(path) > 2 && path[0:2] == "./" {
    30  			// skip "./"
    31  			path = path[2:]
    32  		}
    33  		return initCwd + "/" + path, nil
    34  	}
    35  	return path, nil
    36  }
    37
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