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all: respect $GO_GCFLAGS during run.bash

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If the go install doesn't use the same flags as the main build
it can overwrite the installed standard library, leading to
flakiness and slow future tests.

Force uses of 'go install' etc to propagate $GO_GCFLAGS
or disable them entirely, to avoid problems.

As I understand it, the main place this happens is the ssacheck builder.
If there are other uses that need to run some of the now-disabled
tests we can reenable fixed tests in followup CLs.

Change-Id: Ib860a253539f402f8a96a3c00ec34f0bbf137c9a
Reviewed-on: https://go-review.googlesource.com/74470
Reviewed-by: David Crawshaw <crawshaw@golang.org>
This commit is contained in:
Russ Cox 2017-10-30 15:28:11 -04:00
parent 99be9cc02c
commit 2beb173e98
6 changed files with 40 additions and 10 deletions
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4
src/runtime/crash_test.go
View file

@ -140,14 +140,14 @@ var (
func checkStaleRuntime(t *testing.T) {
staleRuntimeOnce.Do(func() {
// 'go run' uses the installed copy of runtime.a, which may be out of date.
out, err := testenv.CleanCmdEnv(exec.Command(testenv.GoToolPath(t), "list", "-f", "{{.Stale}}", "runtime")).CombinedOutput()
out, err := testenv.CleanCmdEnv(exec.Command(testenv.GoToolPath(t), "list", "-gcflags="+os.Getenv("GO_GCFLAGS"), "-f", "{{.Stale}}", "runtime")).CombinedOutput()
if err != nil {
staleRuntimeErr = fmt.Errorf("failed to execute 'go list': %v\n%v", err, string(out))
return
}
if string(out) != "false\n" {
t.Logf("go list -f {{.Stale}} runtime:\n%s", out)
out, err := testenv.CleanCmdEnv(exec.Command(testenv.GoToolPath(t), "list", "-f", "{{.StaleReason}}", "runtime")).CombinedOutput()
out, err := testenv.CleanCmdEnv(exec.Command(testenv.GoToolPath(t), "list", "-gcflags="+os.Getenv("GO_GCFLAGS"), "-f", "{{.StaleReason}}", "runtime")).CombinedOutput()
if err != nil {
t.Logf("go list -f {{.StaleReason}} failed: %v", err)
}