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// run
//go:build !js && !wasip1 && gc
// Copyright 2014 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 main
import (
"fmt"
"io/ioutil"
"os"
"os/exec"
"path/filepath"
"regexp"
)
func main() {
err := os.Chdir(filepath.Join("fixedbugs", "issue9355.dir"))
check(err)
f, err := ioutil.TempFile("", "issue9355-*.o")
if err != nil {
fmt.Println(err)
os.Exit(1)
}
f.Close()
out := run("go", "tool", "compile", "-p=p", "-o", f.Name(), "-S", "a.go")
os.Remove(f.Name())
// 6g/8g print the offset as dec, but 5g/9g print the offset as hex.
patterns := []string{
`rel 0\+\d t=R_ADDR p\.x\+8\r?\n`, // y = &x.b
`rel 0\+\d t=R_ADDR p\.x\+(28|1c)\r?\n`, // z = &x.d.q
`rel 0\+\d t=R_ADDR p\.b\+5\r?\n`, // c = &b[5]
`rel 0\+\d t=R_ADDR p\.x\+(88|58)\r?\n`, // w = &x.f[3].r
}
for _, p := range patterns {
if ok, err := regexp.Match(p, out); !ok || err != nil {
println(string(out))
panic("can't find pattern " + p)
}
}
}
func run(cmd string, args ...string) []byte {
out, err := exec.Command(cmd, args...).CombinedOutput()
if err != nil {
fmt.Println(string(out))
fmt.Println(err)
os.Exit(1)
}
return out
}
func check(err error) {
if err != nil {
fmt.Println("BUG:", err)
os.Exit(1)
}
}
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