3115       }
3116     }
3117   }
3118 
3119   // If we got here then the metaspace got allocated.
3120   MemTracker::record_virtual_memory_type((address)metaspace_rs.base(), mtClass);
3121 
3122 #if INCLUDE_CDS
3123   // Verify that we can use shared spaces.  Otherwise, turn off CDS.
3124   if (UseSharedSpaces && !can_use_cds_with_metaspace_addr(metaspace_rs.base(), cds_base)) {
3125     FileMapInfo::stop_sharing_and_unmap(
3126         "Could not allocate metaspace at a compatible address");
3127   }
3128 #endif
3129   set_narrow_klass_base_and_shift((address)metaspace_rs.base(),
3130                                   UseSharedSpaces ? (address)cds_base : 0);
3131 
3132   initialize_class_space(metaspace_rs);
3133 
3134   if (PrintCompressedOopsMode || (PrintMiscellaneous && Verbose)) {
3135     gclog_or_tty->print_cr("Narrow klass base: " PTR_FORMAT ", Narrow klass shift: %d",





3136                             p2i(Universe::narrow_klass_base()), Universe::narrow_klass_shift());
3137     gclog_or_tty->print_cr("Compressed class space size: " SIZE_FORMAT " Address: " PTR_FORMAT " Req Addr: " PTR_FORMAT,
3138                            compressed_class_space_size(), p2i(metaspace_rs.base()), p2i(requested_addr));






3139   }
3140 }
3141 
3142 // For UseCompressedClassPointers the class space is reserved above the top of
3143 // the Java heap.  The argument passed in is at the base of the compressed space.
3144 void Metaspace::initialize_class_space(ReservedSpace rs) {
3145   // The reserved space size may be bigger because of alignment, esp with UseLargePages
3146   assert(rs.size() >= CompressedClassSpaceSize,
3147          err_msg(SIZE_FORMAT " != " SIZE_FORMAT, rs.size(), CompressedClassSpaceSize));
3148   assert(using_class_space(), "Must be using class space");
3149   _class_space_list = new VirtualSpaceList(rs);
3150   _chunk_manager_class = new ChunkManager(SpecializedChunk, ClassSmallChunk, ClassMediumChunk);
3151 
3152   if (!_class_space_list->initialization_succeeded()) {
3153     vm_exit_during_initialization("Failed to setup compressed class space virtual space list.");
3154   }
3155 }
3156 
3157 #endif
3158 

3115       }
3116     }
3117   }
3118 
3119   // If we got here then the metaspace got allocated.
3120   MemTracker::record_virtual_memory_type((address)metaspace_rs.base(), mtClass);
3121 
3122 #if INCLUDE_CDS
3123   // Verify that we can use shared spaces.  Otherwise, turn off CDS.
3124   if (UseSharedSpaces && !can_use_cds_with_metaspace_addr(metaspace_rs.base(), cds_base)) {
3125     FileMapInfo::stop_sharing_and_unmap(
3126         "Could not allocate metaspace at a compatible address");
3127   }
3128 #endif
3129   set_narrow_klass_base_and_shift((address)metaspace_rs.base(),
3130                                   UseSharedSpaces ? (address)cds_base : 0);
3131 
3132   initialize_class_space(metaspace_rs);
3133 
3134   if (PrintCompressedOopsMode || (PrintMiscellaneous && Verbose)) {
3135     print_compressed_class_space(gclog_or_tty, requested_addr);
3136   }
3137 }
3138 
3139 void Metaspace::print_compressed_class_space(outputStream* st, const char* requested_addr) {
3140   st->print_cr("Narrow klass base: " PTR_FORMAT ", Narrow klass shift: %d",
3141                p2i(Universe::narrow_klass_base()), Universe::narrow_klass_shift());
3142   if (_class_space_list != NULL) {
3143     address base = (address)_class_space_list->current_virtual_space()->bottom();
3144     st->print("Compressed class space size: " SIZE_FORMAT " Address: " PTR_FORMAT,
3145                  compressed_class_space_size(), p2i(base));
3146     if (requested_addr != 0) {
3147       st->print(" Req Addr: " PTR_FORMAT, p2i(requested_addr));
3148     }
3149     st->cr();
3150   }
3151 }
3152 
3153 // For UseCompressedClassPointers the class space is reserved above the top of
3154 // the Java heap.  The argument passed in is at the base of the compressed space.
3155 void Metaspace::initialize_class_space(ReservedSpace rs) {
3156   // The reserved space size may be bigger because of alignment, esp with UseLargePages
3157   assert(rs.size() >= CompressedClassSpaceSize,
3158          err_msg(SIZE_FORMAT " != " SIZE_FORMAT, rs.size(), CompressedClassSpaceSize));
3159   assert(using_class_space(), "Must be using class space");
3160   _class_space_list = new VirtualSpaceList(rs);
3161   _chunk_manager_class = new ChunkManager(SpecializedChunk, ClassSmallChunk, ClassMediumChunk);
3162 
3163   if (!_class_space_list->initialization_succeeded()) {
3164     vm_exit_during_initialization("Failed to setup compressed class space virtual space list.");
3165   }
3166 }
3167 
3168 #endif
3169