libgo: update to Go 1.11

    
    Reviewed-on: https://go-review.googlesource.com/136435

gotools/:
	* Makefile.am (mostlyclean-local): Run chmod on check-go-dir to
	make sure it is writable.
	(check-go-tools): Likewise.
	(check-vet): Copy internal/objabi to check-vet-dir.
	* Makefile.in: Rebuild.

From-SVN: r264546

1 files changed, 25 insertions, 8 deletions

diff --git a/libgo/go/runtime/heapdump.go b/libgo/go/runtime/heapdump.go
index a4b168d7313..e92ea39be21 100644
--- a/libgo/go/runtime/heapdump.go
+++ b/libgo/go/runtime/heapdump.go
@@ -184,7 +184,7 @@ func dumptype(t *_type) {
 	dumpint(uint64(uintptr(unsafe.Pointer(t))))
 	dumpint(uint64(t.size))
 	if x := t.uncommontype; x == nil || t.pkgPath == nil || *t.pkgPath == "" {
-		dumpstr(*t.string)
+		dumpstr(t.string())
 	} else {
 		pkgpathstr := *t.pkgPath
 		pkgpath := stringStructOf(&pkgpathstr)
@@ -233,9 +233,8 @@ type childInfo struct {
 
 // dump kinds & offsets of interesting fields in bv
 func dumpbv(cbv *bitvector, offset uintptr) {
-	bv := gobv(*cbv)
-	for i := uintptr(0); i < bv.n; i++ {
-		if bv.bytedata[i/8]>>(i%8)&1 == 1 {
+	for i := uintptr(0); i < uintptr(cbv.n); i++ {
+		if cbv.ptrbit(i) == 1 {
 			dumpint(fieldKindPtr)
 			dumpint(uint64(offset + i*sys.PtrSize))
 		}
@@ -254,7 +253,7 @@ func dumpgoroutine(gp *g) {
 	dumpbool(isSystemGoroutine(gp))
 	dumpbool(false) // isbackground
 	dumpint(uint64(gp.waitsince))
-	dumpstr(gp.waitreason)
+	dumpstr(gp.waitreason.String())
 	dumpint(0)
 	dumpint(uint64(uintptr(unsafe.Pointer(gp.m))))
 	dumpint(uint64(uintptr(unsafe.Pointer(gp._defer))))
@@ -372,8 +371,26 @@ func dumpparams() {
 		dumpbool(true) // big-endian ptrs
 	}
 	dumpint(sys.PtrSize)
-	dumpint(uint64(mheap_.arena_start))
-	dumpint(uint64(mheap_.arena_used))
+	var arenaStart, arenaEnd uintptr
+	for i1 := range mheap_.arenas {
+		if mheap_.arenas[i1] == nil {
+			continue
+		}
+		for i, ha := range mheap_.arenas[i1] {
+			if ha == nil {
+				continue
+			}
+			base := arenaBase(arenaIdx(i1)<<arenaL1Shift | arenaIdx(i))
+			if arenaStart == 0 || base < arenaStart {
+				arenaStart = base
+			}
+			if base+heapArenaBytes > arenaEnd {
+				arenaEnd = base + heapArenaBytes
+			}
+		}
+	}
+	dumpint(uint64(arenaStart))
+	dumpint(uint64(arenaEnd))
 	dumpstr(sys.GOARCH)
 	dumpstr(sys.Goexperiment)
 	dumpint(uint64(ncpu))
@@ -509,7 +526,7 @@ func mdump() {
 func writeheapdump_m(fd uintptr) {
 	_g_ := getg()
 	casgstatus(_g_.m.curg, _Grunning, _Gwaiting)
-	_g_.waitreason = "dumping heap"
+	_g_.waitreason = waitReasonDumpingHeap
 
 	// Update stats so we can dump them.
 	// As a side effect, flushes all the MCaches so the MSpan.freelist