registerMap_zero.hpp revision 1472:c18cbe5936b8
1/* 2 * Copyright (c) 1998, 2007, 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 // machine-dependent implemention for register maps 26 friend class frame; 27 28 private: 29 // This is the hook for finding a register in an "well-known" location, 30 // such as a register block of a predetermined format. 31 // Since there is none, we just return NULL. 32 // See registerMap_sparc.hpp for an example of grabbing registers 33 // from register save areas of a standard layout. 34 address pd_location(VMReg reg) const { return NULL; } 35 36 // no PD state to clear or copy: 37 void pd_clear() {} 38 void pd_initialize() {} 39 void pd_initialize_from(const RegisterMap* map) {} 40