1 /*
  2  * Copyright (c) 2003, 2025, Oracle and/or its affiliates. All rights reserved.
  3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  4  *
  5  * This code is free software; you can redistribute it and/or modify it
  6  * under the terms of the GNU General Public License version 2 only, as
  7  * published by the Free Software Foundation.
  8  *
  9  * This code is distributed in the hope that it will be useful, but WITHOUT
 10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 12  * version 2 for more details (a copy is included in the LICENSE file that
 13  * accompanied this code).
 14  *
 15  * You should have received a copy of the GNU General Public License version
 16  * 2 along with this work; if not, write to the Free Software Foundation,
 17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 18  *
 19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 20  * or visit www.oracle.com if you need additional information or have any
 21  * questions.
 22  *
 23  */
 24 
 25 #ifndef SHARE_CDS_FILEMAP_HPP
 26 #define SHARE_CDS_FILEMAP_HPP
 27 
 28 #include "cds/archiveUtils.hpp"
 29 #include "cds/metaspaceShared.hpp"
 30 #include "include/cds.h"
 31 #include "logging/logLevel.hpp"
 32 #include "memory/allocation.hpp"
 33 #include "oops/array.hpp"
 34 #include "oops/compressedOops.hpp"
 35 #include "runtime/globals.hpp"
 36 #include "utilities/align.hpp"
 37 
 38 // To understand the layout of the CDS archive file:
 39 //
 40 // java -Xlog:cds+map=info:file=cds.map:none:filesize=0
 41 // java -Xlog:cds+map=debug:file=cds.map:none:filesize=0
 42 // java -Xlog:cds+map=trace:file=cds.map:none:filesize=0
 43 
 44 static const int JVM_IDENT_MAX = 256;
 45 
 46 class AOTClassLocationConfig;
 47 class ArchiveHeapInfo;
 48 class BitMapView;
 49 class CHeapBitMap;
 50 class ClassFileStream;
 51 class ClassLoaderData;
 52 class ClassPathEntry;
 53 class outputStream;
 54 class ReservedSpace;
 55 
 56 class FileMapRegion: private CDSFileMapRegion {
 57 public:
 58   void assert_is_heap_region() const {
 59     assert(_is_heap_region, "must be heap region");
 60   }
 61   void assert_is_not_heap_region() const {
 62     assert(!_is_heap_region, "must not be heap region");
 63   }
 64 
 65   static FileMapRegion* cast(CDSFileMapRegion* p) {
 66     return (FileMapRegion*)p;
 67   }
 68 
 69   // Accessors
 70   int crc()                         const { return _crc; }
 71   size_t file_offset()              const { return _file_offset; }
 72   size_t mapping_offset()           const { return _mapping_offset; }
 73   size_t mapping_end_offset()       const { return _mapping_offset + used_aligned(); }
 74   size_t used()                     const { return _used; }
 75   size_t used_aligned()             const; // aligned up to MetaspaceShared::core_region_alignment()
 76   char*  mapped_base()              const { return _mapped_base; }
 77   char*  mapped_end()               const { return mapped_base()        + used_aligned(); }
 78   bool   read_only()                const { return _read_only != 0; }
 79   bool   allow_exec()               const { return _allow_exec != 0; }
 80   bool   mapped_from_file()         const { return _mapped_from_file != 0; }
 81   size_t oopmap_offset()            const { assert_is_heap_region();     return _oopmap_offset; }
 82   size_t oopmap_size_in_bits()      const { assert_is_heap_region();     return _oopmap_size_in_bits; }
 83   size_t ptrmap_offset()            const { return _ptrmap_offset; }
 84   size_t ptrmap_size_in_bits()      const { return _ptrmap_size_in_bits; }
 85   bool   in_reserved_space()        const { return _in_reserved_space; }
 86 
 87   void set_file_offset(size_t s)     { _file_offset = s; }
 88   void set_read_only(bool v)         { _read_only = v; }
 89   void set_mapped_base(char* p)      { _mapped_base = p; }
 90   void set_mapped_from_file(bool v)  { _mapped_from_file = v; }
 91   void set_in_reserved_space(bool is_reserved) { _in_reserved_space = is_reserved; }
 92   void init(int region_index, size_t mapping_offset, size_t size, bool read_only,
 93             bool allow_exec, int crc);
 94   void init_oopmap(size_t offset, size_t size_in_bits);
 95   void init_ptrmap(size_t offset, size_t size_in_bits);
 96   bool has_ptrmap()                  { return _ptrmap_size_in_bits != 0; }
 97 
 98   bool check_region_crc(char* base) const;
 99   void print(outputStream* st, int region_index);
100 };
101 
102 #define CDS_MUST_MATCH_FLAGS_DO(f) \
103   f(EnableValhalla) \
104   f(UseArrayFlattening) \
105   f(UseFieldFlattening) \
106   f(InlineTypePassFieldsAsArgs) \
107   f(InlineTypeReturnedAsFields) \
108   f(UseNonAtomicValueFlattening) \
109   f(UseAtomicValueFlattening) \
110   f(UseNullableValueFlattening)
111 
112 
113 class CDSMustMatchFlags {
114 private:
115   size_t _max_name_width;
116 #define DECLARE_CDS_MUST_MATCH_FLAG(n) \
117   decltype(n) _v_##n;
118   CDS_MUST_MATCH_FLAGS_DO(DECLARE_CDS_MUST_MATCH_FLAG);
119 #undef DECLARE_CDS_MUST_MATCH_FLAG
120 
121   inline static void do_print(outputStream* st, bool v);
122   inline static void do_print(outputStream* st, intx v);
123   inline static void do_print(outputStream* st, uintx v);
124   inline static void do_print(outputStream* st, double v);
125   void print_info() const;
126 
127 public:
128   void init();
129   bool runtime_check() const;
130   void print(outputStream* st) const;
131 };
132 
133 class FileMapHeader: private CDSFileMapHeaderBase {
134   friend class CDSConstants;
135   friend class VMStructs;
136 
137 private:
138   // The following fields record the states of the VM during dump time.
139   // They are compared with the runtime states to see if the archive
140   // can be used.
141   size_t _core_region_alignment;                  // how shared archive should be aligned
142   int    _obj_alignment;                          // value of ObjectAlignmentInBytes
143   address _narrow_oop_base;                       // compressed oop encoding base
144   int    _narrow_oop_shift;                       // compressed oop encoding shift
145   bool   _compact_strings;                        // value of CompactStrings
146   bool   _compact_headers;                        // value of UseCompactObjectHeaders
147   uintx  _max_heap_size;                          // java max heap size during dumping
148   CompressedOops::Mode _narrow_oop_mode;          // compressed oop encoding mode
149   bool    _compressed_oops;                       // save the flag UseCompressedOops
150   bool    _compressed_class_ptrs;                 // save the flag UseCompressedClassPointers
151   int     _narrow_klass_pointer_bits;             // save number of bits in narrowKlass
152   int     _narrow_klass_shift;                    // save shift width used to pre-compute narrowKlass IDs in archived heap objects
153   size_t  _cloned_vtables_offset;                 // The address of the first cloned vtable
154   size_t  _early_serialized_data_offset;          // Data accessed using {ReadClosure,WriteClosure}::serialize()
155   size_t  _serialized_data_offset;                // Data accessed using {ReadClosure,WriteClosure}::serialize()
156 
157   // The following fields are all sanity checks for whether this archive
158   // will function correctly with this JVM and the bootclasspath it's
159   // invoked with.
160   char  _jvm_ident[JVM_IDENT_MAX];  // identifier string of the jvm that created this dump
161 
162   size_t _class_location_config_offset;
163 
164   bool   _verify_local;                 // BytecodeVerificationLocal setting
165   bool   _verify_remote;                // BytecodeVerificationRemote setting
166   bool   _has_platform_or_app_classes;  // Archive contains app or platform classes
167   char*  _requested_base_address;       // Archive relocation is not necessary if we map with this base address.
168   char*  _mapped_base_address;          // Actual base address where archive is mapped.
169 
170   bool   _allow_archiving_with_java_agent; // setting of the AllowArchivingWithJavaAgent option
171   bool   _use_optimized_module_handling;// No module-relation VM options were specified, so we can skip
172                                         // some expensive operations.
173   bool   _has_aot_linked_classes;       // Was the CDS archive created with -XX:+AOTClassLinking
174   bool   _has_full_module_graph;        // Does this CDS archive contain the full archived module graph?
175   bool   _has_valhalla_patched_classes; // Is this archived dumped with --enable-preview -XX:+EnableValhalla?
176   CDSMustMatchFlags _must_match;        // These flags must be the same between dumptime and runtime
177   HeapRootSegments _heap_root_segments; // Heap root segments info
178   size_t _heap_oopmap_start_pos;        // The first bit in the oopmap corresponds to this position in the heap.
179   size_t _heap_ptrmap_start_pos;        // The first bit in the ptrmap corresponds to this position in the heap.
180   size_t _rw_ptrmap_start_pos;          // The first bit in the ptrmap corresponds to this position in the rw region
181   size_t _ro_ptrmap_start_pos;          // The first bit in the ptrmap corresponds to this position in the ro region
182 
183   // The following are parameters that affect MethodData layout.
184   u1      _compiler_type;
185   uint    _type_profile_level;
186   int     _type_profile_args_limit;
187   int     _type_profile_parms_limit;
188   intx    _type_profile_width;
189   intx    _bci_profile_width;
190   bool    _profile_traps;
191   bool    _type_profile_casts;
192   int     _spec_trap_limit_extra_entries;
193 
194   template <typename T> T from_mapped_offset(size_t offset) const {
195     return (T)(mapped_base_address() + offset);
196   }
197   void set_as_offset(char* p, size_t *offset);
198   template <typename T> void set_as_offset(T p, size_t *offset) {
199     set_as_offset((char*)p, offset);
200   }
201 
202 public:
203   // Accessors -- fields declared in GenericCDSFileMapHeader
204   unsigned int magic()                            const { return _generic_header._magic;                    }
205   int crc()                                       const { return _generic_header._crc;                      }
206   int version()                                   const { return _generic_header._version;                  }
207   unsigned int header_size()                      const { return _generic_header._header_size;              }
208   unsigned int base_archive_name_offset()         const { return _generic_header._base_archive_name_offset; }
209   unsigned int base_archive_name_size()           const { return _generic_header._base_archive_name_size;   }
210 
211   void set_magic(unsigned int m)                            { _generic_header._magic = m;                    }
212   void set_crc(int crc_value)                               { _generic_header._crc = crc_value;              }
213   void set_version(int v)                                   { _generic_header._version = v;                  }
214   void set_header_size(unsigned int s)                      { _generic_header._header_size = s;              }
215   void set_base_archive_name_offset(unsigned int s)         { _generic_header._base_archive_name_offset = s; }
216   void set_base_archive_name_size(unsigned int s)           { _generic_header._base_archive_name_size = s;   }
217 
218   bool is_static()                         const { return magic() == CDS_ARCHIVE_MAGIC; }
219   size_t core_region_alignment()           const { return _core_region_alignment; }
220   int obj_alignment()                      const { return _obj_alignment; }
221   address narrow_oop_base()                const { return _narrow_oop_base; }
222   int narrow_oop_shift()                   const { return _narrow_oop_shift; }
223   bool compact_strings()                   const { return _compact_strings; }
224   bool compact_headers()                   const { return _compact_headers; }
225   uintx max_heap_size()                    const { return _max_heap_size; }
226   CompressedOops::Mode narrow_oop_mode()   const { return _narrow_oop_mode; }
227   char* cloned_vtables()                   const { return from_mapped_offset<char*>(_cloned_vtables_offset); }
228   char* early_serialized_data()            const { return from_mapped_offset<char*>(_early_serialized_data_offset); }
229   char* serialized_data()                  const { return from_mapped_offset<char*>(_serialized_data_offset); }
230   const char* jvm_ident()                  const { return _jvm_ident; }
231   char* requested_base_address()           const { return _requested_base_address; }
232   char* mapped_base_address()              const { return _mapped_base_address; }
233   bool has_platform_or_app_classes()       const { return _has_platform_or_app_classes; }
234   bool has_aot_linked_classes()            const { return _has_aot_linked_classes; }
235   bool compressed_oops()                   const { return _compressed_oops; }
236   bool compressed_class_pointers()         const { return _compressed_class_ptrs; }
237   int narrow_klass_pointer_bits()          const { return _narrow_klass_pointer_bits; }
238   int narrow_klass_shift()                 const { return _narrow_klass_shift; }
239   HeapRootSegments heap_root_segments()    const { return _heap_root_segments; }
240   bool has_full_module_graph()             const { return _has_full_module_graph; }
241   size_t heap_oopmap_start_pos()           const { return _heap_oopmap_start_pos; }
242   size_t heap_ptrmap_start_pos()           const { return _heap_ptrmap_start_pos; }
243   size_t rw_ptrmap_start_pos()             const { return _rw_ptrmap_start_pos; }
244   size_t ro_ptrmap_start_pos()             const { return _ro_ptrmap_start_pos; }
245 
246   void set_has_platform_or_app_classes(bool v)   { _has_platform_or_app_classes = v; }
247   void set_cloned_vtables(char* p)               { set_as_offset(p, &_cloned_vtables_offset); }
248   void set_early_serialized_data(char* p)        { set_as_offset(p, &_early_serialized_data_offset); }
249   void set_serialized_data(char* p)              { set_as_offset(p, &_serialized_data_offset); }
250   void set_mapped_base_address(char* p)          { _mapped_base_address = p; }
251   void set_heap_root_segments(HeapRootSegments segments) { _heap_root_segments = segments; }
252   void set_heap_oopmap_start_pos(size_t n)       { _heap_oopmap_start_pos = n; }
253   void set_heap_ptrmap_start_pos(size_t n)       { _heap_ptrmap_start_pos = n; }
254   void set_rw_ptrmap_start_pos(size_t n)         { _rw_ptrmap_start_pos = n; }
255   void set_ro_ptrmap_start_pos(size_t n)         { _ro_ptrmap_start_pos = n; }
256   void copy_base_archive_name(const char* name);
257 
258   void set_class_location_config(AOTClassLocationConfig* table) {
259     set_as_offset(table, &_class_location_config_offset);
260   }
261 
262   AOTClassLocationConfig* class_location_config() {
263     return from_mapped_offset<AOTClassLocationConfig*>(_class_location_config_offset);
264   }
265 
266   void set_requested_base(char* b) {
267     _requested_base_address = b;
268     _mapped_base_address = nullptr;
269   }
270 
271   bool validate();
272   int compute_crc();
273 
274   FileMapRegion* region_at(int i) {
275     assert(is_valid_region(i), "invalid region");
276     return FileMapRegion::cast(&_regions[i]);
277   }
278 
279   void populate(FileMapInfo *info, size_t core_region_alignment, size_t header_size,
280                 size_t base_archive_name_size, size_t base_archive_name_offset);
281   static bool is_valid_region(int region) {
282     return (0 <= region && region < NUM_CDS_REGIONS);
283   }
284 
285   bool check_must_match_flags() const {
286     return _must_match.runtime_check();
287   }
288 
289   void print(outputStream* st);
290 };
291 
292 class FileMapInfo : public CHeapObj<mtInternal> {
293 private:
294   friend class ManifestStream;
295   friend class VMStructs;
296   friend class ArchiveBuilder;
297   friend class CDSOffsets;
298   friend class FileMapHeader;
299 
300   bool           _is_static;
301   bool           _file_open;
302   bool           _is_mapped;
303   int            _fd;
304   size_t         _file_offset;
305   const char*    _full_path;
306   const char*    _base_archive_name;
307   FileMapHeader* _header;
308 
309   // FileMapHeader describes the shared space data in the file to be
310   // mapped.  This structure gets written to a file.  It is not a class, so
311   // that the compilers don't add any compiler-private data to it.
312 
313   static FileMapInfo* _current_info;
314   static FileMapInfo* _dynamic_archive_info;
315   static bool _heap_pointers_need_patching;
316   static bool _memory_mapping_failed;
317 
318 public:
319   FileMapHeader *header() const       { return _header; }
320   static bool get_base_archive_name_from_header(const char* archive_name,
321                                                 const char** base_archive_name);
322   static bool is_preimage_static_archive(const char* file);
323 
324   bool init_from_file(int fd);
325 
326   void log_paths(const char* msg, int start_idx, int end_idx);
327 
328   FileMapInfo(const char* full_apth, bool is_static);
329   ~FileMapInfo();
330   static void free_current_info();
331 
332   // Accessors
333   int    compute_header_crc()  const { return header()->compute_crc(); }
334   void   set_header_crc(int crc)     { header()->set_crc(crc); }
335   int    region_crc(int i)     const { return region_at(i)->crc(); }
336   void   populate_header(size_t core_region_alignment);
337   bool   validate_header();
338   void   invalidate();
339   int    crc()                 const { return header()->crc(); }
340   int    version()             const { return header()->version(); }
341   unsigned int magic()         const { return header()->magic(); }
342   address narrow_oop_base()    const { return header()->narrow_oop_base(); }
343   int     narrow_oop_shift()   const { return header()->narrow_oop_shift(); }
344   uintx   max_heap_size()      const { return header()->max_heap_size(); }
345   HeapRootSegments heap_root_segments() const { return header()->heap_root_segments(); }
346   size_t  core_region_alignment() const { return header()->core_region_alignment(); }
347   size_t  heap_oopmap_start_pos() const { return header()->heap_oopmap_start_pos(); }
348   size_t  heap_ptrmap_start_pos() const { return header()->heap_ptrmap_start_pos(); }
349 
350   CompressedOops::Mode narrow_oop_mode()      const { return header()->narrow_oop_mode(); }
351 
352   char* cloned_vtables()                      const { return header()->cloned_vtables(); }
353   void  set_cloned_vtables(char* p)           const { header()->set_cloned_vtables(p); }
354   char* early_serialized_data()               const { return header()->early_serialized_data(); }
355   void  set_early_serialized_data(char* p)    const { header()->set_early_serialized_data(p); }
356   char* serialized_data()                     const { return header()->serialized_data(); }
357   void  set_serialized_data(char* p)          const { header()->set_serialized_data(p); }
358 
359   bool  is_file_position_aligned() const;
360   void  align_file_position();
361 
362   bool is_static()                            const { return _is_static; }
363   bool is_mapped()                            const { return _is_mapped; }
364   void set_is_mapped(bool v)                        { _is_mapped = v; }
365   const char* full_path()                     const { return _full_path; }
366 
367   void set_requested_base(char* b)                  { header()->set_requested_base(b); }
368   char* requested_base_address()           const    { return header()->requested_base_address(); }
369 
370   class DynamicArchiveHeader* dynamic_header() const {
371     assert(!is_static(), "must be");
372     return (DynamicArchiveHeader*)header();
373   }
374 
375   void set_has_platform_or_app_classes(bool v) {
376     header()->set_has_platform_or_app_classes(v);
377   }
378   bool has_platform_or_app_classes() const {
379     return header()->has_platform_or_app_classes();
380   }
381 
382   static FileMapInfo* current_info() {
383     CDS_ONLY(return _current_info;)
384     NOT_CDS(return nullptr;)
385   }
386 
387   static void set_current_info(FileMapInfo* info) {
388     CDS_ONLY(_current_info = info;)
389   }
390 
391   static FileMapInfo* dynamic_info() {
392     CDS_ONLY(return _dynamic_archive_info;)
393     NOT_CDS(return nullptr;)
394   }
395 
396   static void assert_mark(bool check);
397 
398   // File manipulation.
399   bool  open_as_input() NOT_CDS_RETURN_(false);
400   void  open_as_output();
401   void  write_header();
402   void  write_region(int region, char* base, size_t size,
403                      bool read_only, bool allow_exec);
404   size_t remove_bitmap_zeros(CHeapBitMap* map);
405   char* write_bitmap_region(CHeapBitMap* rw_ptrmap, CHeapBitMap* ro_ptrmap, ArchiveHeapInfo* heap_info,
406                             size_t &size_in_bytes);
407   size_t write_heap_region(ArchiveHeapInfo* heap_info);
408   void  write_bytes(const void* buffer, size_t count);
409   void  write_bytes_aligned(const void* buffer, size_t count);
410   size_t  read_bytes(void* buffer, size_t count);
411   static size_t readonly_total();
412   MapArchiveResult map_regions(int regions[], int num_regions, char* mapped_base_address, ReservedSpace rs);
413   void  unmap_regions(int regions[], int num_regions);
414   void  map_or_load_heap_region() NOT_CDS_JAVA_HEAP_RETURN;
415   void  fixup_mapped_heap_region() NOT_CDS_JAVA_HEAP_RETURN;
416   void  patch_heap_embedded_pointers() NOT_CDS_JAVA_HEAP_RETURN;
417   bool  has_heap_region()  NOT_CDS_JAVA_HEAP_RETURN_(false);
418   MemRegion get_heap_region_requested_range() NOT_CDS_JAVA_HEAP_RETURN_(MemRegion());
419   bool  read_region(int i, char* base, size_t size, bool do_commit);
420   char* map_bitmap_region();
421   bool  map_aot_code_region(ReservedSpace rs);
422   void  unmap_region(int i);
423   void  close();
424   bool  is_open() { return _file_open; }
425 
426   // JVM/TI RedefineClasses() support:
427   // Remap the shared readonly space to shared readwrite, private.
428   bool  remap_shared_readonly_as_readwrite();
429 
430   static bool memory_mapping_failed() {
431     CDS_ONLY(return _memory_mapping_failed;)
432     NOT_CDS(return false;)
433   }
434 
435   bool validate_class_location();
436   bool validate_aot_class_linking();
437 
438 #if INCLUDE_JVMTI
439   // Caller needs a ResourceMark because parts of the returned cfs are resource-allocated.
440   static ClassFileStream* open_stream_for_jvmti(InstanceKlass* ik, Handle class_loader, TRAPS);
441   static ClassFileStream* get_stream_from_class_loader(Handle class_loader,
442                                                        ClassPathEntry* cpe,
443                                                        const char* file_name,
444                                                        TRAPS);
445 #endif
446 
447   // The offset of the first core region in the archive, relative to SharedBaseAddress
448   size_t mapping_base_offset() const { return first_core_region()->mapping_offset();    }
449   // The offset of the (exclusive) end of the last core region in this archive, relative to SharedBaseAddress
450   size_t mapping_end_offset()  const { return last_core_region()->mapping_end_offset(); }
451 
452   char* mapped_base()    const { return header()->mapped_base_address();    }
453   char* mapped_end()     const { return last_core_region()->mapped_end();   }
454 
455   // Non-zero if the archive needs to be mapped a non-default location due to ASLR.
456   intx relocation_delta() const {
457     return header()->mapped_base_address() - header()->requested_base_address();
458   }
459 
460   FileMapRegion* first_core_region() const;
461   FileMapRegion* last_core_region()  const;
462 
463   FileMapRegion* region_at(int i) const {
464     return header()->region_at(i);
465   }
466 
467   BitMapView bitmap_view(int region_index, bool is_oopmap);
468   BitMapView oopmap_view(int region_index);
469   BitMapView ptrmap_view(int region_index);
470 
471   void print(outputStream* st) const;
472 
473   const char* vm_version() {
474     return header()->jvm_ident();
475   }
476 
477  private:
478   bool  open_for_read();
479   void  seek_to_position(size_t pos);
480   bool  map_heap_region_impl() NOT_CDS_JAVA_HEAP_RETURN_(false);
481   void  dealloc_heap_region() NOT_CDS_JAVA_HEAP_RETURN;
482   bool  can_use_heap_region();
483   bool  load_heap_region() NOT_CDS_JAVA_HEAP_RETURN_(false);
484   bool  map_heap_region() NOT_CDS_JAVA_HEAP_RETURN_(false);
485   void  init_heap_region_relocation();
486   MapArchiveResult map_region(int i, intx addr_delta, char* mapped_base_address, ReservedSpace rs);
487   bool  relocate_pointers_in_core_regions(intx addr_delta);
488 
489   static MemRegion _mapped_heap_memregion;
490 
491 public:
492   address heap_region_dumptime_address() NOT_CDS_JAVA_HEAP_RETURN_(nullptr);
493   address heap_region_requested_address() NOT_CDS_JAVA_HEAP_RETURN_(nullptr);
494   narrowOop encoded_heap_region_dumptime_address();
495 
496 private:
497 
498 #if INCLUDE_JVMTI
499   static ClassPathEntry** _classpath_entries_for_jvmti;
500   static ClassPathEntry* get_classpath_entry_for_jvmti(int i, TRAPS);
501 #endif
502 };
503 
504 #endif // SHARE_CDS_FILEMAP_HPP