1 /*
 2  * Copyright (c) 1998, 2020, Oracle and/or its affiliates. All rights reserved.
 3  * Copyright (c) 2014, Red Hat Inc. All rights reserved.
 4  * Copyright (c) 2020, 2021, Huawei Technologies Co., Ltd. All rights reserved.
 5  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 7  * This code is free software; you can redistribute it and/or modify it
 8  * under the terms of the GNU General Public License version 2 only, as
 9  * published by the Free Software Foundation.
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12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14  * version 2 for more details (a copy is included in the LICENSE file that
15  * accompanied this code).
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17  * You should have received a copy of the GNU General Public License version
18  * 2 along with this work; if not, write to the Free Software Foundation,
19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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26 
27 #ifndef CPU_RISCV_REGISTERMAP_RISCV_HPP
28 #define CPU_RISCV_REGISTERMAP_RISCV_HPP
29 
30 // machine-dependent implemention for register maps
31   friend class frame;
32 
33  private:
34   // This is the hook for finding a register in an "well-known" location,
35   // such as a register block of a predetermined format.
36   // Since there is none, we just return NULL.
37   // See registerMap_riscv.hpp for an example of grabbing registers
38   // from register save areas of a standard layout.
39   address pd_location(VMReg reg) const {return NULL;}
40   address pd_location(VMReg base_reg, int slot_idx) const;
41 
42   // no PD state to clear or copy:
43   void pd_clear() {}
44   void pd_initialize() {}
45   void pd_initialize_from(const RegisterMap* map) {}
46 
47 #endif // CPU_RISCV_REGISTERMAP_RISCV_HPP