1 /*
 2  * Copyright (c) 2019, 2023, 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
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24 
25 #ifndef SHARE_CDS_ARCHIVEUTILS_INLINE_HPP
26 #define SHARE_CDS_ARCHIVEUTILS_INLINE_HPP
27 
28 #include "cds/archiveUtils.hpp"
29 
30 #include "cds/archiveBuilder.hpp"
31 #include "oops/array.hpp"
32 #include "utilities/growableArray.hpp"
33 
34 #include "utilities/bitMap.inline.hpp"
35 
36 inline bool SharedDataRelocator::do_bit(size_t offset) {
37   address* p = _patch_base + offset;
38   assert(_patch_base <= p && p < _patch_end, "must be");
39 
40   address old_ptr = *p;
41   assert(_valid_old_base <= old_ptr && old_ptr < _valid_old_end, "must be");
42   assert(old_ptr != nullptr, "bits for null pointers should have been cleaned at dump time");
43 
44   address new_ptr = old_ptr + _delta;
45   assert(new_ptr != nullptr, "don't point to the bottom of the archive"); // See ArchivePtrMarker::mark_pointer().
46   assert(_valid_new_base <= new_ptr && new_ptr < _valid_new_end, "must be");
47 
48   DEBUG_ONLY(log_trace(cds, reloc)("Patch2: @%8d [" PTR_FORMAT "] " PTR_FORMAT " -> " PTR_FORMAT,
49                                    (int)offset, p2i(p), p2i(old_ptr), p2i(new_ptr)));
50   *p = new_ptr;
51   return true; // keep iterating
52 }
53 
54 // Returns the address of an Array<T> that's allocated in the ArchiveBuilder "buffer" space.
55 template <typename T>
56 Array<T>* ArchiveUtils::archive_array(GrowableArray<T>* tmp_array) {
57   Array<T>* archived_array = ArchiveBuilder::new_ro_array<T>(tmp_array->length());
58   for (int i = 0; i < tmp_array->length(); i++) {
59     archived_array->at_put(i, tmp_array->at(i));
60     if (std::is_pointer<T>::value) {
61       ArchivePtrMarker::mark_pointer(archived_array->adr_at(i));
62     }
63   }
64 
65   return archived_array;
66 }
67 
68 
69 #endif // SHARE_CDS_ARCHIVEUTILS_INLINE_HPP