libgo: update to Go1.12beta2

    
    Reviewed-on: https://go-review.googlesource.com/c/158019

gotools/:
	* Makefile.am (go_cmd_vet_files): Update for Go1.12beta2 release.
	(GOTOOLS_TEST_TIMEOUT): Increase to 600.
	(check-runtime): Export LD_LIBRARY_PATH before computing GOARCH
	and GOOS.
	(check-vet): Copy golang.org/x/tools into check-vet-dir.
	* Makefile.in: Regenerate.

gcc/testsuite/:
	* go.go-torture/execute/names-1.go: Stop using debug/xcoff, which
	is no longer externally visible.

From-SVN: r268084

1 files changed, 16 insertions, 0 deletions

diff --git a/libgo/go/runtime/malloc_test.go b/libgo/go/runtime/malloc_test.go
index 30a7d84..c9282ba 100644
--- a/libgo/go/runtime/malloc_test.go
+++ b/libgo/go/runtime/malloc_test.go
@@ -170,6 +170,14 @@ func TestTinyAlloc(t *testing.T) {
 	}
 }
 
+func TestPhysicalMemoryUtilization(t *testing.T) {
+	got := runTestProg(t, "testprog", "GCPhys")
+	want := "OK\n"
+	if got != want {
+		t.Fatalf("expected %q, but got %q", want, got)
+	}
+}
+
 type acLink struct {
 	x [1 << 20]byte
 }
@@ -177,6 +185,14 @@ type acLink struct {
 var arenaCollisionSink []*acLink
 
 func TestArenaCollision(t *testing.T) {
+	if GOOS == "darwin" && race.Enabled {
+		// Skip this test on Darwin in race mode because Darwin 10.10 has
+		// issues following arena hints and runs out of them in race mode, so
+		// MAP_FIXED is used to ensure we keep the heap in the memory region the
+		// race detector expects.
+		// TODO(mknyszek): Delete this when Darwin 10.10 is no longer supported.
+		t.Skip("disabled on Darwin with race mode since MAP_FIXED is used")
+	}
 	testenv.MustHaveExec(t)
 
 	// Test that mheap.sysAlloc handles collisions with other