1 /* RISC-V spec version controlling support.
2    Copyright (C) 2019-2020 Free Software Foundation, Inc.
3 
4    This file is part of BFD, the Binary File Descriptor library.
5 
6    This program is free software; you can redistribute it and/or modify
7    it under the terms of the GNU General Public License as published by
8    the Free Software Foundation; either version 3 of the License, or
9    (at your option) any later version.
10 
11    This program is distributed in the hope that it will be useful,
12    but WITHOUT ANY WARRANTY; without even the implied warranty of
13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14    GNU General Public License for more details.
15 
16    You should have received a copy of the GNU General Public License
17    along with this program; if not, write to the Free Software
18    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19    MA 02110-1301, USA.  */
20 
21 enum riscv_spec_class
22 {
23   /* ISA spec.  */
24   ISA_SPEC_CLASS_NONE = 0,
25   ISA_SPEC_CLASS_2P2,
26   ISA_SPEC_CLASS_20190608,
27   ISA_SPEC_CLASS_20191213,
28   ISA_SPEC_CLASS_DRAFT,
29 
30   /* Privileged spec.  */
31   PRIV_SPEC_CLASS_NONE,
32   PRIV_SPEC_CLASS_1P9P1,
33   PRIV_SPEC_CLASS_1P10,
34   PRIV_SPEC_CLASS_1P11,
35   PRIV_SPEC_CLASS_DRAFT,
36 };
37 
38 struct riscv_spec
39 {
40   const char *name;
41   enum riscv_spec_class spec_class;
42 };
43 
44 extern const struct riscv_spec riscv_isa_specs[];
45 extern const struct riscv_spec riscv_priv_specs[];
46 
47 #define RISCV_GET_SPEC_CLASS(UTYPE, LTYPE, NAME, CLASS)			\
48   do									\
49     {									\
50       if (NAME == NULL)							\
51 	break;								\
52 									\
53       int i_spec = UTYPE##_SPEC_CLASS_NONE + 1;				\
54       for (; i_spec < UTYPE##_SPEC_CLASS_DRAFT; i_spec++)		\
55 	{								\
56 	  int j_spec = i_spec - UTYPE##_SPEC_CLASS_NONE -1;		\
57 	  if (riscv_##LTYPE##_specs[j_spec].name			\
58 	      && strcmp (riscv_##LTYPE##_specs[j_spec].name, NAME) == 0)\
59 	  {								\
60 	    CLASS = riscv_##LTYPE##_specs[j_spec].spec_class;		\
61 	    break;							\
62 	  }								\
63 	}								\
64     }									\
65   while (0)
66 
67 #define RISCV_GET_SPEC_NAME(UTYPE, LTYPE, NAME, CLASS)			\
68   (NAME) = riscv_##LTYPE##_specs[(CLASS) - UTYPE##_SPEC_CLASS_NONE - 1].name
69 
70 #define RISCV_GET_ISA_SPEC_CLASS(NAME, CLASS)	\
71   RISCV_GET_SPEC_CLASS(ISA, isa, NAME, CLASS)
72 #define RISCV_GET_PRIV_SPEC_CLASS(NAME, CLASS)	\
73   RISCV_GET_SPEC_CLASS(PRIV, priv, NAME, CLASS)
74 #define RISCV_GET_PRIV_SPEC_NAME(NAME, CLASS)	\
75   RISCV_GET_SPEC_NAME(PRIV, priv, NAME, CLASS)
76 
77 extern void
78 riscv_get_priv_spec_class_from_numbers (unsigned int,
79 					unsigned int,
80 					unsigned int,
81 					enum riscv_spec_class *);
82