runtime: skip TestCgoCallbackPprof on platforms with broken profiling

CL 658035 added TestCgoCallbackPprof, which is consistently failing on
solaris. runtime/pprof maintains a list of platforms where CPU profiling
does not work properly. Since this test requires CPU profiling, skip the
this test on those platforms.

For #72870.
Fixes #72876.

Change-Id: I6a6a636cbf6b16abcbba8771178fe1d001be9d9b
Reviewed-on: https://go-review.googlesource.com/c/go/+/658415
LUCI-TryBot-Result: Go LUCI <[email protected]>
Auto-Submit: Michael Pratt <[email protected]>
Reviewed-by: Michael Knyszek <[email protected]>

Author: prattmic

src/internal/testenv/testenv.go

@@ -504,3 +504,26 @@ func ParallelOn64Bit(t *testing.T) {
 	}
 	t.Parallel()
 }
+
+// CPUProfilingBroken returns true if CPU profiling has known issues on this
+// platform.
+func CPUProfilingBroken() bool {
+	switch runtime.GOOS {
+	case "plan9":
+		// Profiling unimplemented.
+		return true
+	case "aix":
+		// See https://golang.org/issue/45170.
+		return true
+	case "ios", "dragonfly", "netbsd", "illumos", "solaris":
+		// See https://golang.org/issue/13841.
+		return true
+	case "openbsd":
+		if runtime.GOARCH == "arm" || runtime.GOARCH == "arm64" {
+			// See https://golang.org/issue/13841.
+			return true
+		}
+	}
+
+	return false
+}

src/runtime/crash_cgo_test.go

@@ -78,6 +78,9 @@ func TestCgoCallbackPprof(t *testing.T) {
 	case "plan9", "windows":
 		t.Skipf("no pthreads on %s", runtime.GOOS)
 	}
+	if testenv.CPUProfilingBroken() {
+		t.Skip("skipping on platform with broken profiling")
+	}
 
 	got := runTestProg(t, "testprogcgo", "CgoCallbackPprof")
 	if want := "OK\n"; got != want {

src/runtime/pprof/pprof_test.go

@@ -416,27 +416,6 @@ func parseProfile(t *testing.T, valBytes []byte, f func(uintptr, []*profile.Loca
 	return p
 }
 
-func cpuProfilingBroken() bool {
-	switch runtime.GOOS {
-	case "plan9":
-		// Profiling unimplemented.
-		return true
-	case "aix":
-		// See https://golang.org/issue/45170.
-		return true
-	case "ios", "dragonfly", "netbsd", "illumos", "solaris":
-		// See https://golang.org/issue/13841.
-		return true
-	case "openbsd":
-		if runtime.GOARCH == "arm" || runtime.GOARCH == "arm64" {
-			// See https://golang.org/issue/13841.
-			return true
-		}
-	}
-
-	return false
-}
-
 // testCPUProfile runs f under the CPU profiler, checking for some conditions specified by need,
 // as interpreted by matches, and returns the parsed profile.
 func testCPUProfile(t *testing.T, matches profileMatchFunc, f func(dur time.Duration)) *profile.Profile {
@@ -454,7 +433,7 @@ func testCPUProfile(t *testing.T, matches profileMatchFunc, f func(dur time.Dura
 		t.Skip("skipping on wasip1")
 	}
 
-	broken := cpuProfilingBroken()
+	broken := testenv.CPUProfilingBroken()
 
 	deadline, ok := t.Deadline()
 	if broken || !ok {