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cmd/dist: skip race detector test failure for unsupported VMA

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Fixes #29948

Change-Id: I01d041655d34a5de32701dec8b360e347593a45d
Reviewed-on: https://go-review.googlesource.com/c/go/+/160919
Reviewed-by: Russ Cox <rsc@golang.org>
This commit is contained in:
Fangming.Fang 2019-02-02 10:27:37 +00:00 committed by Brad Fitzpatrick
parent a21a6e4461
commit f84d28b775
2 changed files with 23 additions and 0 deletions
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20
src/cmd/dist/test.go vendored
View File

@ -1103,6 +1103,13 @@ func (t *tester) runPending(nextTest *distTest) {
} else {
timelog("start", w.dt.name)
w.out, w.err = w.cmd.CombinedOutput()
if w.err != nil {
if isUnsupportedVMASize(w) {
timelog("skip", w.dt.name)
w.out = []byte(fmt.Sprintf("skipped due to unsupported VMA\n"))
w.err = nil
}
}
}
timelog("end", w.dt.name)
w.end <- true
@ -1383,6 +1390,11 @@ func (t *tester) packageHasBenchmarks(pkg string) bool {
// raceDetectorSupported is a copy of the function
// cmd/internal/sys.RaceDetectorSupported, which can't be used here
// because cmd/dist has to be buildable by Go 1.4.
// The race detector only supports 48-bit VMA on arm64. But we don't have
// a good solution to check VMA size(See https://golang.org/issue/29948)
// raceDetectorSupported will always return true for arm64. But race
// detector tests may abort on non 48-bit VMA configuration, the tests
// will be marked as "skipped" in this case.
func raceDetectorSupported(goos, goarch string) bool {
switch goos {
case "linux":
@ -1404,3 +1416,11 @@ func mSanSupported(goos, goarch string) bool {
return false
}
}
// isUnsupportedVMASize reports whether the failure is caused by an unsupported
// VMA for the race detector (for example, running the race detector on an
// arm64 machine configured with 39-bit VMA)
func isUnsupportedVMASize(w *work) bool {
unsupportedVMA := []byte("unsupported VMA range")
return w.dt.name == "race" && bytes.Contains(w.out, unsupportedVMA)
}

3
src/cmd/internal/sys/supported.go
View File

@ -6,6 +6,9 @@ package sys
// RaceDetectorSupported reports whether goos/goarch supports the race
// detector. There is a copy of this function in cmd/dist/test.go.
// Race detector only supports 48-bit VMA on arm64. But it will always
// return true for arm64, because we don't have VMA size information during
// the compile time.
func RaceDetectorSupported(goos, goarch string) bool {
switch goos {
case "linux":