1 /* 2 * Copyright (c) 2014, 2019, 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 #include "precompiled.hpp" 26 #include "utilities/macros.hpp" 27 #if INCLUDE_CDS 28 #include "runtime/os.hpp" 29 #include "memory/dynamicArchive.hpp" 30 #include "memory/filemap.hpp" 31 #include "memory/allocation.hpp" 32 #include "memory/allocation.inline.hpp" 33 #include "prims/cdsoffsets.hpp" 34 35 CDSOffsets::CDSOffsets(const char* name, int offset, CDSOffsets* next) { 36 _name = NEW_C_HEAP_ARRAY(char, strlen(name) + 1, mtInternal); 37 strcpy(_name, name); 38 _offset = offset; 39 _next = next; 40 } 41 42 CDSOffsets* CDSOffsets::_all = NULL; 43 #define ADD_NEXT(list, name, value) \ 44 list->add_end(new CDSOffsets(name, value, NULL)) 45 46 #define CREATE_OFFSET_MAPS \ 47 _all = new CDSOffsets("size_t_size", sizeof(size_t), NULL); \ 48 ADD_NEXT(_all, "int_size", sizeof(int)); \ 49 ADD_NEXT(_all, "FileMapHeader::_magic", offset_of(FileMapHeader, _magic)); \ 50 ADD_NEXT(_all, "FileMapHeader::_crc", offset_of(FileMapHeader, _crc)); \ 51 ADD_NEXT(_all, "FileMapHeader::_version", offset_of(FileMapHeader, _version)); \ 52 ADD_NEXT(_all, "FileMapHeader::_jvm_ident", offset_of(FileMapHeader, _jvm_ident)); \ 53 ADD_NEXT(_all, "FileMapHeader::_space[0]", offset_of(FileMapHeader, _space)); \ 54 ADD_NEXT(_all, "CDSFileMapRegion::_crc", offset_of(CDSFileMapRegion, _crc)); \ 55 ADD_NEXT(_all, "CDSFileMapRegion::_used", offset_of(CDSFileMapRegion, _used)); \ 56 ADD_NEXT(_all, "FileMapHeader::_paths_misc_info_size", offset_of(FileMapHeader, _paths_misc_info_size)); \ 57 ADD_NEXT(_all, "file_header_size", sizeof(FileMapHeader)); \ 58 ADD_NEXT(_all, "DynamicArchiveHeader::_base_archive_crc", offset_of(DynamicArchiveHeader, _base_archive_crc)); \ 59 ADD_NEXT(_all, "CDSFileMapRegion_size", sizeof(CDSFileMapRegion)); 60 61 int CDSOffsets::find_offset(const char* name) { 62 if (_all == NULL) { 63 CREATE_OFFSET_MAPS 64 } 65 CDSOffsets* it = _all; 66 while(it) { 67 if (!strcmp(name, it->get_name())) { 68 return it->get_offset(); 69 } 70 it = it->next(); 71 } 72 return -1; // not found 73 } 74 75 void CDSOffsets::add_end(CDSOffsets* n) { 76 CDSOffsets* p = this; 77 while(p && p->_next) { p = p->_next; } 78 p->_next = n; 79 } 80 #endif // INCLUDE_CDS