48 
  49 inline bool os::allocate_stack_guard_pages() {
  50   assert(uses_stack_guard_pages(), "sanity check");
  51   int r = thr_main() ;
  52   guarantee (r == 0 || r == 1, "CR6501650 or CR6493689") ;
  53   return r;
  54 }
  55 
  56 
  57 // On Solaris, reservations are made on a page by page basis, nothing to do.
  58 inline void os::pd_split_reserved_memory(char *base, size_t size,
  59                                       size_t split, bool realloc) {
  60 }
  61 
  62 
  63 // Bang the shadow pages if they need to be touched to be mapped.
  64 inline void os::bang_stack_shadow_pages() {
  65 }
  66 inline void os::dll_unload(void *lib) { ::dlclose(lib); }
  67 


  68 inline DIR* os::opendir(const char* dirname) {
  69   assert(dirname != NULL, "just checking");
  70   return ::opendir(dirname);
  71 }
  72 
  73 inline int os::readdir_buf_size(const char *path) {
  74   int size = pathconf(path, _PC_NAME_MAX);
  75   return (size < 0 ? MAXPATHLEN : size) + sizeof(dirent) + 1;
  76 }
  77 
  78 inline struct dirent* os::readdir(DIR* dirp, dirent* dbuf) {
  79   assert(dirp != NULL, "just checking");
  80 #if defined(_LP64) || defined(_GNU_SOURCE) || _FILE_OFFSET_BITS==64
  81   dirent* p;
  82   int status;
  83 
  84   if((status = ::readdir_r(dirp, dbuf, &p)) != 0) {
  85     errno = status;
  86     return NULL;
  87   } else

  48 
  49 inline bool os::allocate_stack_guard_pages() {
  50   assert(uses_stack_guard_pages(), "sanity check");
  51   int r = thr_main() ;
  52   guarantee (r == 0 || r == 1, "CR6501650 or CR6493689") ;
  53   return r;
  54 }
  55 
  56 
  57 // On Solaris, reservations are made on a page by page basis, nothing to do.
  58 inline void os::pd_split_reserved_memory(char *base, size_t size,
  59                                       size_t split, bool realloc) {
  60 }
  61 
  62 
  63 // Bang the shadow pages if they need to be touched to be mapped.
  64 inline void os::bang_stack_shadow_pages() {
  65 }
  66 inline void os::dll_unload(void *lib) { ::dlclose(lib); }
  67 
  68 inline const int os::default_file_open_flags() { return 0;}
  69 
  70 inline DIR* os::opendir(const char* dirname) {
  71   assert(dirname != NULL, "just checking");
  72   return ::opendir(dirname);
  73 }
  74 
  75 inline int os::readdir_buf_size(const char *path) {
  76   int size = pathconf(path, _PC_NAME_MAX);
  77   return (size < 0 ? MAXPATHLEN : size) + sizeof(dirent) + 1;
  78 }
  79 
  80 inline struct dirent* os::readdir(DIR* dirp, dirent* dbuf) {
  81   assert(dirp != NULL, "just checking");
  82 #if defined(_LP64) || defined(_GNU_SOURCE) || _FILE_OFFSET_BITS==64
  83   dirent* p;
  84   int status;
  85 
  86   if((status = ::readdir_r(dirp, dbuf, &p)) != 0) {
  87     errno = status;
  88     return NULL;
  89   } else