src/hotspot/os/aix/os_aix.cpp
changeset 48153 cfa2c43e58c2
parent 48005 9fd89aabb6cd
child 48635 612dfa1d8aad
child 48775 7c59727b4890
equal deleted inserted replaced
48152:bef902d8fef1 48153:cfa2c43e58c2
  2488 bool os::can_execute_large_page_memory() {
  2488 bool os::can_execute_large_page_memory() {
  2489   // Does not matter, we do not support huge pages.
  2489   // Does not matter, we do not support huge pages.
  2490   return false;
  2490   return false;
  2491 }
  2491 }
  2492 
  2492 
       
  2493 char* os::pd_attempt_reserve_memory_at(size_t bytes, char* requested_addr, int file_desc) {
       
  2494   assert(file_desc >= 0, "file_desc is not valid");
       
  2495   char* result = NULL;
       
  2496 
       
  2497   // Always round to os::vm_page_size(), which may be larger than 4K.
       
  2498   bytes = align_up(bytes, os::vm_page_size());
       
  2499   result = reserve_mmaped_memory(bytes, requested_addr, 0);
       
  2500 
       
  2501   if (result != NULL) {
       
  2502     if (replace_existing_mapping_with_file_mapping(result, bytes, file_desc) == NULL) {
       
  2503       vm_exit_during_initialization(err_msg("Error in mapping Java heap at the given filesystem directory"));
       
  2504     }
       
  2505   }
       
  2506   return result;
       
  2507 }
       
  2508 
  2493 // Reserve memory at an arbitrary address, only if that area is
  2509 // Reserve memory at an arbitrary address, only if that area is
  2494 // available (and not reserved for something else).
  2510 // available (and not reserved for something else).
  2495 char* os::pd_attempt_reserve_memory_at(size_t bytes, char* requested_addr) {
  2511 char* os::pd_attempt_reserve_memory_at(size_t bytes, char* requested_addr) {
  2496   char* addr = NULL;
  2512   char* addr = NULL;
  2497 
  2513