Mercurial > hg > graal-compiler
annotate src/share/vm/memory/restore.cpp @ 1972:f95d63e2154a
6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg
| author | stefank |
|---|---|
| date | Tue, 23 Nov 2010 13:22:55 -0800 |
| parents | c18cbe5936b8 |
| children | 3582bf76420e |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "classfile/symbolTable.hpp" | |
| 27 #include "classfile/systemDictionary.hpp" | |
| 28 #include "memory/filemap.hpp" | |
| 29 #include "oops/oop.inline.hpp" | |
| 30 #include "utilities/hashtable.inline.hpp" | |
| 0 | 31 |
| 32 | |
| 33 // Closure for serializing initialization data in from a data area | |
| 34 // (oop_array) read from the shared file. | |
| 35 | |
| 36 class ReadClosure : public SerializeOopClosure { | |
| 37 private: | |
| 38 oop** _oop_array; | |
| 39 | |
| 40 inline oop nextOop() { | |
| 41 return *(*_oop_array)++; | |
| 42 } | |
| 43 | |
| 44 public: | |
| 45 ReadClosure(oop** oop_array) { _oop_array = oop_array; } | |
| 46 | |
| 47 void do_oop(oop* p) { | |
| 48 assert(SharedSkipVerify || *p == NULL || *p == Universe::klassKlassObj(), | |
| 49 "initializing previously initialized oop."); | |
| 50 oop obj = nextOop(); | |
| 51 assert(SharedSkipVerify || (intptr_t)obj >= 0 || (intptr_t)obj < -100, | |
| 52 "hit tag while initializing oops."); | |
| 53 assert(SharedSkipVerify || obj->is_oop_or_null(), "invalid oop"); | |
| 54 *p = obj; | |
| 55 } | |
| 56 | |
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57 void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
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58 |
| 0 | 59 void do_ptr(void** p) { |
| 60 assert(*p == NULL, "initializing previous initialized pointer."); | |
| 61 void* obj = nextOop(); | |
| 62 assert((intptr_t)obj >= 0 || (intptr_t)obj < -100, | |
| 63 "hit tag while initializing ptrs."); | |
| 64 *p = obj; | |
| 65 } | |
| 66 | |
| 67 void do_ptr(HeapWord** p) { do_ptr((void **) p); } | |
| 68 | |
| 69 void do_int(int* p) { | |
| 70 *p = (int)(intptr_t)nextOop(); | |
| 71 } | |
| 72 | |
| 73 void do_size_t(size_t* p) { | |
| 74 // Assumes that size_t and pointers are the same size. | |
| 75 *p = (size_t)nextOop(); | |
| 76 } | |
| 77 | |
| 78 void do_tag(int tag) { | |
| 79 int old_tag; | |
| 80 do_int(&old_tag); | |
| 81 FileMapInfo::assert_mark(tag == old_tag); | |
| 82 } | |
| 83 | |
| 84 void do_region(u_char* start, size_t size) { | |
| 85 assert((intptr_t)start % sizeof(oop) == 0, "bad alignment"); | |
| 86 assert(size % sizeof(oop) == 0, "bad size"); | |
| 87 do_tag((int)size); | |
| 88 while (size > 0) { | |
| 89 *(oop*)start = nextOop(); | |
| 90 start += sizeof(oop); | |
| 91 size -= sizeof(oop); | |
| 92 } | |
| 93 } | |
| 94 | |
| 95 bool reading() const { return true; } | |
| 96 }; | |
| 97 | |
| 98 | |
| 99 // Read the oop and miscellaneous data from the shared file, and | |
| 100 // serialize it out to its various destinations. | |
| 101 | |
| 102 void CompactingPermGenGen::initialize_oops() { | |
| 103 FileMapInfo *mapinfo = FileMapInfo::current_info(); | |
| 104 | |
| 105 char* buffer = mapinfo->region_base(md); | |
| 106 | |
| 107 // Skip over (reserve space for) a list of addresses of C++ vtables | |
| 108 // for Klass objects. They get filled in later. | |
| 109 | |
| 110 // Skip over (reserve space for) dummy C++ vtables Klass objects. | |
| 111 // They are used as is. | |
| 112 | |
| 113 void** vtbl_list = (void**)buffer; | |
| 114 buffer += vtbl_list_size * sizeof(void*); | |
| 115 intptr_t vtable_size = *(intptr_t*)buffer; | |
| 116 buffer += sizeof(intptr_t); | |
| 117 buffer += vtable_size; | |
| 118 | |
| 119 // Create the symbol table using the bucket array at this spot in the | |
| 120 // misc data space. Since the symbol table is often modified, this | |
| 121 // region (of mapped pages) will be copy-on-write. | |
| 122 | |
| 123 int symbolTableLen = *(intptr_t*)buffer; | |
| 124 buffer += sizeof(intptr_t); | |
| 125 int number_of_entries = *(intptr_t*)buffer; | |
| 126 buffer += sizeof(intptr_t); | |
| 127 SymbolTable::create_table((HashtableBucket*)buffer, symbolTableLen, | |
| 128 number_of_entries); | |
| 129 buffer += symbolTableLen; | |
| 130 | |
| 131 // Create the string table using the bucket array at this spot in the | |
| 132 // misc data space. Since the string table is often modified, this | |
| 133 // region (of mapped pages) will be copy-on-write. | |
| 134 | |
| 135 int stringTableLen = *(intptr_t*)buffer; | |
| 136 buffer += sizeof(intptr_t); | |
| 137 number_of_entries = *(intptr_t*)buffer; | |
| 138 buffer += sizeof(intptr_t); | |
| 139 StringTable::create_table((HashtableBucket*)buffer, stringTableLen, | |
| 140 number_of_entries); | |
| 141 buffer += stringTableLen; | |
| 142 | |
| 143 // Create the shared dictionary using the bucket array at this spot in | |
| 144 // the misc data space. Since the shared dictionary table is never | |
| 145 // modified, this region (of mapped pages) will be (effectively, if | |
| 146 // not explicitly) read-only. | |
| 147 | |
| 148 int sharedDictionaryLen = *(intptr_t*)buffer; | |
| 149 buffer += sizeof(intptr_t); | |
| 150 number_of_entries = *(intptr_t*)buffer; | |
| 151 buffer += sizeof(intptr_t); | |
| 152 SystemDictionary::set_shared_dictionary((HashtableBucket*)buffer, | |
| 153 sharedDictionaryLen, | |
| 154 number_of_entries); | |
| 155 buffer += sharedDictionaryLen; | |
| 156 | |
| 157 // Create the package info table using the bucket array at this spot in | |
| 158 // the misc data space. Since the package info table is never | |
| 159 // modified, this region (of mapped pages) will be (effectively, if | |
| 160 // not explicitly) read-only. | |
| 161 | |
| 162 int pkgInfoLen = *(intptr_t*)buffer; | |
| 163 buffer += sizeof(intptr_t); | |
| 164 number_of_entries = *(intptr_t*)buffer; | |
| 165 buffer += sizeof(intptr_t); | |
| 166 ClassLoader::create_package_info_table((HashtableBucket*)buffer, pkgInfoLen, | |
| 167 number_of_entries); | |
| 168 buffer += pkgInfoLen; | |
| 169 ClassLoader::verify(); | |
| 170 | |
| 171 // The following data in the shared misc data region are the linked | |
| 172 // list elements (HashtableEntry objects) for the symbol table, string | |
| 173 // table, and shared dictionary. The heap objects refered to by the | |
| 174 // symbol table, string table, and shared dictionary are permanent and | |
| 175 // unmovable. Since new entries added to the string and symbol tables | |
| 176 // are always added at the beginning of the linked lists, THESE LINKED | |
| 177 // LIST ELEMENTS ARE READ-ONLY. | |
| 178 | |
| 179 int len = *(intptr_t*)buffer; // skip over symbol table entries | |
| 180 buffer += sizeof(intptr_t); | |
| 181 buffer += len; | |
| 182 | |
| 183 len = *(intptr_t*)buffer; // skip over string table entries | |
| 184 buffer += sizeof(intptr_t); | |
| 185 buffer += len; | |
| 186 | |
| 187 len = *(intptr_t*)buffer; // skip over shared dictionary entries | |
| 188 buffer += sizeof(intptr_t); | |
| 189 buffer += len; | |
| 190 | |
| 191 len = *(intptr_t*)buffer; // skip over package info table entries | |
| 192 buffer += sizeof(intptr_t); | |
| 193 buffer += len; | |
| 194 | |
| 195 len = *(intptr_t*)buffer; // skip over package info table char[] arrays. | |
| 196 buffer += sizeof(intptr_t); | |
| 197 buffer += len; | |
| 198 | |
| 199 oop* oop_array = (oop*)buffer; | |
| 200 ReadClosure rc(&oop_array); | |
| 201 serialize_oops(&rc); | |
| 202 } |