302 }
303 return JVMFlag::SUCCESS;
304 }
305
306 static JVMFlag::Error MaxSizeForHeapAlignment(const char* name, size_t value, bool verbose) {
307 size_t heap_alignment;
308
309 #if INCLUDE_G1GC
310 if (UseG1GC) {
311 // For G1 GC, we don't know until G1CollectedHeap is created.
312 heap_alignment = MaxSizeForHeapAlignmentG1();
313 } else
314 #endif
315 {
316 heap_alignment = GCArguments::compute_heap_alignment();
317 }
318
319 return MaxSizeForAlignment(name, value, heap_alignment, verbose);
320 }
321
322 JVMFlag::Error InitialHeapSizeConstraintFunc(size_t value, bool verbose) {
323 return MaxSizeForHeapAlignment("InitialHeapSize", value, verbose);
324 }
325
326 JVMFlag::Error MaxHeapSizeConstraintFunc(size_t value, bool verbose) {
327 JVMFlag::Error status = MaxSizeForHeapAlignment("MaxHeapSize", value, verbose);
328
329 if (status == JVMFlag::SUCCESS) {
330 status = CheckMaxHeapSizeAndSoftRefLRUPolicyMSPerMB(value, SoftRefLRUPolicyMSPerMB, verbose);
331 }
332 return status;
333 }
334
335 JVMFlag::Error HeapBaseMinAddressConstraintFunc(size_t value, bool verbose) {
336 // If an overflow happened in Arguments::set_heap_size(), MaxHeapSize will have too large a value.
337 // Check for this by ensuring that MaxHeapSize plus the requested min base address still fit within max_uintx.
338 if (UseCompressedOops && FLAG_IS_ERGO(MaxHeapSize) && (value > (max_uintx - MaxHeapSize))) {
339 JVMFlag::printError(verbose,
340 "HeapBaseMinAddress (" SIZE_FORMAT ") or MaxHeapSize (" SIZE_FORMAT ") is too large. "
341 "Sum of them must be less than or equal to maximum of size_t (" SIZE_FORMAT ")\n",
|
302 }
303 return JVMFlag::SUCCESS;
304 }
305
306 static JVMFlag::Error MaxSizeForHeapAlignment(const char* name, size_t value, bool verbose) {
307 size_t heap_alignment;
308
309 #if INCLUDE_G1GC
310 if (UseG1GC) {
311 // For G1 GC, we don't know until G1CollectedHeap is created.
312 heap_alignment = MaxSizeForHeapAlignmentG1();
313 } else
314 #endif
315 {
316 heap_alignment = GCArguments::compute_heap_alignment();
317 }
318
319 return MaxSizeForAlignment(name, value, heap_alignment, verbose);
320 }
321
322 JVMFlag::Error MinimumHeapSizeConstraintFunc(size_t value, bool verbose) {
323 return MaxSizeForHeapAlignment("MinHeapSize", value, verbose);
324 }
325
326 JVMFlag::Error InitialHeapSizeConstraintFunc(size_t value, bool verbose) {
327 return MaxSizeForHeapAlignment("InitialHeapSize", value, verbose);
328 }
329
330 JVMFlag::Error MaxHeapSizeConstraintFunc(size_t value, bool verbose) {
331 JVMFlag::Error status = MaxSizeForHeapAlignment("MaxHeapSize", value, verbose);
332
333 if (status == JVMFlag::SUCCESS) {
334 status = CheckMaxHeapSizeAndSoftRefLRUPolicyMSPerMB(value, SoftRefLRUPolicyMSPerMB, verbose);
335 }
336 return status;
337 }
338
339 JVMFlag::Error HeapBaseMinAddressConstraintFunc(size_t value, bool verbose) {
340 // If an overflow happened in Arguments::set_heap_size(), MaxHeapSize will have too large a value.
341 // Check for this by ensuring that MaxHeapSize plus the requested min base address still fit within max_uintx.
342 if (UseCompressedOops && FLAG_IS_ERGO(MaxHeapSize) && (value > (max_uintx - MaxHeapSize))) {
343 JVMFlag::printError(verbose,
344 "HeapBaseMinAddress (" SIZE_FORMAT ") or MaxHeapSize (" SIZE_FORMAT ") is too large. "
345 "Sum of them must be less than or equal to maximum of size_t (" SIZE_FORMAT ")\n",
|