320 reserved_rgn->set_call_stack(stack);
321 return true;
322 } else {
323 // Overlapped reservation.
324 // It can happen when the regions are thread stacks, as JNI
325 // thread does not detach from VM before exits, and leads to
326 // leak JavaThread object
327 if (reserved_rgn->flag() == mtThreadStack) {
328 guarantee(!CheckJNICalls, "Attached JNI thread exited without being detached");
329 // Overwrite with new region
330
331 // Release old region
332 VirtualMemorySummary::record_uncommitted_memory(reserved_rgn->committed_size(), reserved_rgn->flag());
333 VirtualMemorySummary::record_released_memory(reserved_rgn->size(), reserved_rgn->flag());
334
335 // Add new region
336 VirtualMemorySummary::record_reserved_memory(rgn.size(), flag);
337
338 *reserved_rgn = rgn;
339 return true;
340 } else {
341 ShouldNotReachHere();
342 return false;
343 }
344 }
345 }
346 }
347
348 void VirtualMemoryTracker::set_reserved_region_type(address addr, MEMFLAGS flag) {
349 assert(addr != NULL, "Invalid address");
350 assert(_reserved_regions != NULL, "Sanity check");
351
352 ReservedMemoryRegion rgn(addr, 1);
353 ReservedMemoryRegion* reserved_rgn = _reserved_regions->find(rgn);
354 if (reserved_rgn != NULL) {
355 assert(reserved_rgn->contain_address(addr), "Containment");
356 if (reserved_rgn->flag() != flag) {
357 assert(reserved_rgn->flag() == mtNone, "Overwrite memory type");
358 reserved_rgn->set_flag(flag);
359 }
360 }
361 }
362
363 bool VirtualMemoryTracker::add_committed_region(address addr, size_t size,
364 const NativeCallStack& stack) {
365 assert(addr != NULL, "Invalid address");
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320 reserved_rgn->set_call_stack(stack);
321 return true;
322 } else {
323 // Overlapped reservation.
324 // It can happen when the regions are thread stacks, as JNI
325 // thread does not detach from VM before exits, and leads to
326 // leak JavaThread object
327 if (reserved_rgn->flag() == mtThreadStack) {
328 guarantee(!CheckJNICalls, "Attached JNI thread exited without being detached");
329 // Overwrite with new region
330
331 // Release old region
332 VirtualMemorySummary::record_uncommitted_memory(reserved_rgn->committed_size(), reserved_rgn->flag());
333 VirtualMemorySummary::record_released_memory(reserved_rgn->size(), reserved_rgn->flag());
334
335 // Add new region
336 VirtualMemorySummary::record_reserved_memory(rgn.size(), flag);
337
338 *reserved_rgn = rgn;
339 return true;
340 }
341
342 // CDS mapping region.
343 // CDS reserves the whole region for mapping CDS archive, then maps each section into the region.
344 // NMT reports CDS as a whole.
345 if (reserved_rgn->flag() == mtClassShared) {
346 assert(reserved_rgn->contain_region(base_addr, size), "Reserved CDS region should contain this mapping region");
347 return true;
348 }
349
350 ShouldNotReachHere();
351 return false;
352 }
353 }
354 }
355
356 void VirtualMemoryTracker::set_reserved_region_type(address addr, MEMFLAGS flag) {
357 assert(addr != NULL, "Invalid address");
358 assert(_reserved_regions != NULL, "Sanity check");
359
360 ReservedMemoryRegion rgn(addr, 1);
361 ReservedMemoryRegion* reserved_rgn = _reserved_regions->find(rgn);
362 if (reserved_rgn != NULL) {
363 assert(reserved_rgn->contain_address(addr), "Containment");
364 if (reserved_rgn->flag() != flag) {
365 assert(reserved_rgn->flag() == mtNone, "Overwrite memory type");
366 reserved_rgn->set_flag(flag);
367 }
368 }
369 }
370
371 bool VirtualMemoryTracker::add_committed_region(address addr, size_t size,
372 const NativeCallStack& stack) {
373 assert(addr != NULL, "Invalid address");
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