1 /*
 2  * Copyright (c) 2016, 2021, Oracle and/or its affiliates. All rights reserved.
 3  * Copyright (c) 2016 SAP SE. All rights reserved.
 4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 5  *
 6  * This code is free software; you can redistribute it and/or modify it
 7  * under the terms of the GNU General Public License version 2 only, as
 8  * published by the Free Software Foundation.
 9  *
10  * This code is distributed in the hope that it will be useful, but WITHOUT
11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
13  * version 2 for more details (a copy is included in the LICENSE file that
14  * accompanied this code).
15  *
16  * You should have received a copy of the GNU General Public License version
17  * 2 along with this work; if not, write to the Free Software Foundation,
18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19  *
20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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25 
26 #ifndef CPU_S390_REGISTERMAP_S390_HPP
27 #define CPU_S390_REGISTERMAP_S390_HPP
28 
29 // Machine-dependent implementation for register maps.
30 
31  friend class frame;
32 
33  private:
34   // This is the hook for finding a register in a "well-known" location,
35   // such as a register block of a predetermined format.
36   // Since there is none, we just return NULL.
37   address pd_location(VMReg reg) const {return NULL;}
38 
39   address pd_location(VMReg base_reg, int slot_idx) const {
40     return location(base_reg->next(slot_idx));
41   }
42 
43   // No PD state to clear or copy.
44   void pd_clear() {}
45   void pd_initialize() {}
46   void pd_initialize_from(const RegisterMap* map) {}
47 
48 #endif // CPU_S390_REGISTERMAP_S390_HPP