1 /*
2 * Copyright (c) 1999, 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
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "ci/ciUtilities.hpp"
27 #include "gc/shared/cardTableBarrierSet.hpp"
28 #include "gc/shared/cardTable.hpp"
29 #include "gc/shared/collectedHeap.hpp"
30 #include "memory/universe.hpp"
31
32 // ciUtilities
33 //
34 // Miscellaneous internal compiler interface routines.
35
36 // ------------------------------------------------------------------
37 // basictype_to_str
38 const char* basictype_to_str(BasicType t) {
39 const char* str = type2name(t);
40 if (str == nullptr) return "illegal";
41 return str;
42 }
43
44 // ------------------------------------------------------------------
45 // card_table_base
46 CardTable::CardValue* ci_card_table_address() {
47 BarrierSet* bs = BarrierSet::barrier_set();
48 CardTableBarrierSet* ctbs = barrier_set_cast<CardTableBarrierSet>(bs);
49 CardTable* ct = ctbs->card_table();
50 return ct->byte_map_base();
51 }
52
53 bool is_card_table_address(address adr) {
54 if (Universe::is_fully_initialized()) {
55 BarrierSet* bs = BarrierSet::barrier_set();
56 if (bs->is_a(BarrierSet::CardTableBarrierSet)) {
57 return adr == ci_card_table_address_as<address>();
58 }
59 }
60 return false;
61 }