402 p2i(eden_start),
403 p2i(eden_end),
404 pointer_delta(eden_end, eden_start, sizeof(char)));
405 log_trace(gc, ergo)(" [ to_start .. to_end): "
406 "[" PTR_FORMAT " .. " PTR_FORMAT ") " SIZE_FORMAT,
407 p2i(to_start),
408 p2i(to_end),
409 pointer_delta( to_end, to_start, sizeof(char)));
410 log_trace(gc, ergo)(" [from_start .. from_end): "
411 "[" PTR_FORMAT " .. " PTR_FORMAT ") " SIZE_FORMAT,
412 p2i(from_start),
413 p2i(from_end),
414 pointer_delta(from_end, from_start, sizeof(char)));
415 }
416
417
418 guarantee((HeapWord*)from_start <= from_space()->bottom(),
419 "from start moved to the right");
420 guarantee((HeapWord*)from_end >= from_space()->top(),
421 "from end moved into live data");
422 assert(is_object_aligned((intptr_t)eden_start), "checking alignment");
423 assert(is_object_aligned((intptr_t)from_start), "checking alignment");
424 assert(is_object_aligned((intptr_t)to_start), "checking alignment");
425
426 MemRegion edenMR((HeapWord*)eden_start, (HeapWord*)eden_end);
427 MemRegion toMR ((HeapWord*)to_start, (HeapWord*)to_end);
428 MemRegion fromMR((HeapWord*)from_start, (HeapWord*)from_end);
429
430 // Let's make sure the call to initialize doesn't reset "top"!
431 DEBUG_ONLY(HeapWord* old_from_top = from_space()->top();)
432
433 // For logging block below
434 size_t old_from = from_space()->capacity_in_bytes();
435 size_t old_to = to_space()->capacity_in_bytes();
436
437 if (ZapUnusedHeapArea) {
438 // NUMA is a special case because a numa space is not mangled
439 // in order to not prematurely bind its address to memory to
440 // the wrong memory (i.e., don't want the GC thread to first
441 // touch the memory). The survivor spaces are not numa
442 // spaces and are mangled.
443 if (UseNUMA) {
444 if (eden_from_to_order) {
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402 p2i(eden_start),
403 p2i(eden_end),
404 pointer_delta(eden_end, eden_start, sizeof(char)));
405 log_trace(gc, ergo)(" [ to_start .. to_end): "
406 "[" PTR_FORMAT " .. " PTR_FORMAT ") " SIZE_FORMAT,
407 p2i(to_start),
408 p2i(to_end),
409 pointer_delta( to_end, to_start, sizeof(char)));
410 log_trace(gc, ergo)(" [from_start .. from_end): "
411 "[" PTR_FORMAT " .. " PTR_FORMAT ") " SIZE_FORMAT,
412 p2i(from_start),
413 p2i(from_end),
414 pointer_delta(from_end, from_start, sizeof(char)));
415 }
416
417
418 guarantee((HeapWord*)from_start <= from_space()->bottom(),
419 "from start moved to the right");
420 guarantee((HeapWord*)from_end >= from_space()->top(),
421 "from end moved into live data");
422 assert(is_ptr_object_aligned(eden_start), "checking alignment");
423 assert(is_ptr_object_aligned(from_start), "checking alignment");
424 assert(is_ptr_object_aligned(to_start), "checking alignment");
425
426 MemRegion edenMR((HeapWord*)eden_start, (HeapWord*)eden_end);
427 MemRegion toMR ((HeapWord*)to_start, (HeapWord*)to_end);
428 MemRegion fromMR((HeapWord*)from_start, (HeapWord*)from_end);
429
430 // Let's make sure the call to initialize doesn't reset "top"!
431 DEBUG_ONLY(HeapWord* old_from_top = from_space()->top();)
432
433 // For logging block below
434 size_t old_from = from_space()->capacity_in_bytes();
435 size_t old_to = to_space()->capacity_in_bytes();
436
437 if (ZapUnusedHeapArea) {
438 // NUMA is a special case because a numa space is not mangled
439 // in order to not prematurely bind its address to memory to
440 // the wrong memory (i.e., don't want the GC thread to first
441 // touch the memory). The survivor spaces are not numa
442 // spaces and are mangled.
443 if (UseNUMA) {
444 if (eden_from_to_order) {
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