main.go

     1  // Copyright 2022 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  // Issue 53989: the use of jump table caused a function
     6  // from the plugin jumps in the middle of the function
     7  // to the function with the same name in the main
     8  // executable. As these two functions may be compiled
     9  // differently as plugin needs to be PIC, this causes
    10  // crash.
    11  
    12  package main
    13  
    14  import (
    15  	"plugin"
    16  
    17  	"testplugin/issue53989/p"
    18  )
    19  
    20  func main() {
    21  	p.Square(7) // call the function in main executable
    22  
    23  	p, err := plugin.Open("issue53989.so")
    24  	if err != nil {
    25  		panic(err)
    26  	}
    27  	f, err := p.Lookup("Square")
    28  	if err != nil {
    29  		panic(err)
    30  	}
    31  	f.(func(int))(7) // call the plugin one
    32  }
    33
View as plain text