b := (*bucket)(persistentalloc(size, 0, &memstats.buckhash_sys))
	b.typ = typ
	b.nstk = uintptr(nstk)
	return b
}

// stk returns the slice in b holding the stack. The caller can asssume that the
// backing array is immutable.
func (b *bucket) stk() []uintptr {
	stk := (*[maxProfStackDepth]uintptr)(add(unsafe.Pointer(b), unsafe.Sizeof(*b)))
	if b.nstk > maxProfStackDepth {
		// prove that slicing works; otherwise a failure requires a P

    private static class ActivationWalker extends MavenTransformer {

        private final Deque<ActivationFrame> stk;

        ActivationWalker(Deque<ActivationFrame> stk, UnaryOperator<String> transformer) {
            super(transformer);
            this.stk = stk;
        }

        private ActivationFrame nextFrame(String property) {
            return new ActivationFrame(property, Optional.empty());

    private static class ActivationWalker extends MavenTransformer {

        private final Deque<ActivationFrame> stk;

        ActivationWalker(Deque<ActivationFrame> stk, UnaryOperator<String> transformer) {
            super(transformer);
            this.stk = stk;
        }

        private ActivationFrame nextFrame(String property) {
            return new ActivationFrame(property, Optional.empty());

		for _, test := range tests {
			if !containsStack(stks, test.stk) {
				t.Errorf("No matching stack entry for %v, want %+v", test.name, test.stk)
			}
		}
	})

}

func stacks(p *profile.Profile) (res [][]string) {
	for _, s := range p.Sample {
		var stk []string
		for _, l := range s.Location {
			for _, line := range l.Line {
				stk = append(stk, line.Function.Name)
			}
		}
		res = append(res, stk)

				p := *(*uintptr)(unsafe.Pointer(b + i))
				if p != 0 {
					if obj, span, objIndex := findObject(p, b, i); obj != 0 {
						greyobject(obj, b, i, span, gcw, objIndex)
					} else if stk != nil && p >= stk.stack.lo && p < stk.stack.hi {
						stk.putPtr(p, false)
					}
				}
			}
			bits >>= 1
			i += goarch.PtrSize
		}
	}
}

// scanobject scans the object starting at b, adding pointers to gcw.

		hi = frame.sp + maxExpand
	}
	// And don't go outside the stack bounds.
	if lo < stk.lo {
		lo = stk.lo
	}
	if hi > stk.hi {
		hi = stk.hi
	}

	// Print the hex dump.
	print("stack: frame={sp:", hex(frame.sp), ", fp:", hex(frame.fp), "} stack=[", hex(stk.lo), ",", hex(stk.hi), ")\n")
	hexdumpWords(lo, hi, func(p uintptr) byte {
		switch p {
		case frame.fp:
			return '>'

			}
			// Note: if NeedKeyUpdate is false, then the memory
			// used to store the key is immutable, so we can share
			// it between the original map and its clone.
			*(*unsafe.Pointer)(dstK) = srcK
		} else {
			typedmemmove(t.Key, dstK, srcK)
		}
		if t.IndirectElem() {
			srcEle = *(*unsafe.Pointer)(srcEle)
			eStore := newobject(t.Elem)
			typedmemmove(t.Elem, eStore, srcEle)

//sys	GetACP() (acp uint32) = kernel32.GetACP
//sys	MultiByteToWideChar(codePage uint32, dwFlags uint32, str *byte, nstr int32, wchar *uint16, nwchar int32) (nwrite int32, err error) = kernel32.MultiByteToWideChar
//sys	getBestInterfaceEx(sockaddr unsafe.Pointer, pdwBestIfIndex *uint32) (errcode error) = iphlpapi.GetBestInterfaceEx