| /* |
| * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #include "precompiled.hpp" |
| #include "code/codeCache.hpp" |
| #include "code/relocInfo.hpp" |
| #include "code/relocInfo_ext.hpp" |
| #include "gc/shared/cardTableModRefBS.hpp" |
| #include "gc/shared/collectedHeap.hpp" |
| #include "memory/universe.hpp" |
| #include "runtime/os.hpp" |
| #include "utilities/debug.hpp" |
| #ifdef COMPILER1 |
| #include "c1/c1_globals.hpp" |
| #endif |
| |
| address symbolic_Relocation::symbolic_value(symbolic_Relocation::symbolic_reference t) { |
| if (Universe::heap() == NULL) { |
| // the symbolic values are not needed so early |
| // (and most of them lead to errors if asked too early) |
| return NULL; |
| } |
| switch(t) { |
| case symbolic_Relocation::polling_page_reference: { |
| return os::get_polling_page(); |
| } |
| case symbolic_Relocation::eden_top_reference: { |
| if (!Universe::heap()->supports_inline_contig_alloc()) { |
| return NULL; |
| } |
| return (address)Universe::heap()->top_addr(); |
| } |
| case symbolic_Relocation::heap_end_reference: { |
| if (!Universe::heap()->supports_inline_contig_alloc()) { |
| return NULL; |
| } |
| return (address)Universe::heap()->end_addr(); |
| } |
| case symbolic_Relocation::card_table_reference: { |
| BarrierSet* bs = Universe::heap()->barrier_set(); |
| CardTableModRefBS* ct = (CardTableModRefBS*)bs; |
| return (address)ct->byte_map_base; |
| } |
| case symbolic_Relocation::mark_bits_reference: { |
| return (address)Universe::verify_mark_bits(); |
| } |
| case symbolic_Relocation::mark_mask_reference: { |
| return (address)Universe::verify_mark_mask(); |
| } |
| case symbolic_Relocation::oop_bits_reference: { |
| return (address)Universe::verify_oop_bits(); |
| } |
| case symbolic_Relocation::oop_mask_reference: { |
| return (address)Universe::verify_oop_mask(); |
| } |
| case symbolic_Relocation::debug_string_reference: { |
| return (address)"<Lost debug string>"; |
| } |
| default: { |
| // missing declaration |
| ShouldNotReachHere(); |
| return NULL; |
| } |
| } |
| } |