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go/test/fixedbugs/issue9355.go
Rahul Chaudhry d81cc374be test: chdir before running go tool, cleanup afterwards.
issue9355 generated a file a.[568] in test/ directory and left it there.
For tests like these, it is best to chdir to a test specific directory
before generating any temporary files, since the tests are running
in parallel and might otherwise race with each other for the same files.

Change-Id: I58d96256d4d8ee3fda70d81077f19006064a7425
Reviewed-on: https://go-review.googlesource.com/3813
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-02-06 05:16:34 +00:00

63 lines
1.3 KiB
Go

// run
// 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"
"go/build"
"os"
"os/exec"
"path/filepath"
"regexp"
"runtime"
)
func main() {
if runtime.Compiler != "gc" || runtime.GOOS == "nacl" {
return
}
a, err := build.ArchChar(runtime.GOARCH)
check(err)
err = os.Chdir(filepath.Join("fixedbugs", "issue9355.dir"))
check(err)
out := run("go", "tool", a+"g", "-S", "a.go")
os.Remove("a." + a)
// 6g/8g print the offset as dec, but 5g/9g print the offset as hex.
patterns := []string{
`rel 0\+\d t=1 \"\"\.x\+8\r?\n`, // y = &x.b
`rel 0\+\d t=1 \"\"\.x\+(28|1c)\r?\n`, // z = &x.d.q
`rel 0\+\d t=1 \"\"\.b\+5\r?\n`, // c = &b[5]
`rel 0\+\d t=1 \"\"\.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)
}
}