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      1 /* RISC-V spec version controlling support.
      2    Copyright (C) 2019-2024 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_1P12,
     36   PRIV_SPEC_CLASS_DRAFT,
     37 };
     38 
     39 struct riscv_spec
     40 {
     41   const char *name;
     42   enum riscv_spec_class spec_class;
     43 };
     44 
     45 extern const struct riscv_spec riscv_isa_specs[];
     46 extern const struct riscv_spec riscv_priv_specs[];
     47 
     48 #define RISCV_GET_SPEC_CLASS(UTYPE, LTYPE, NAME, CLASS)			\
     49   do									\
     50     {									\
     51       if (NAME == NULL)							\
     52 	break;								\
     53 									\
     54       int i_spec = UTYPE##_SPEC_CLASS_NONE + 1;				\
     55       for (; i_spec < UTYPE##_SPEC_CLASS_DRAFT; i_spec++)		\
     56 	{								\
     57 	  int j_spec = i_spec - UTYPE##_SPEC_CLASS_NONE -1;		\
     58 	  if (riscv_##LTYPE##_specs[j_spec].name			\
     59 	      && strcmp (riscv_##LTYPE##_specs[j_spec].name, NAME) == 0)\
     60 	  {								\
     61 	    CLASS = riscv_##LTYPE##_specs[j_spec].spec_class;		\
     62 	    break;							\
     63 	  }								\
     64 	}								\
     65     }									\
     66   while (0)
     67 
     68 #define RISCV_GET_SPEC_NAME(UTYPE, LTYPE, NAME, CLASS)			\
     69   (NAME) = riscv_##LTYPE##_specs[(CLASS) - UTYPE##_SPEC_CLASS_NONE - 1].name
     70 
     71 #define RISCV_GET_ISA_SPEC_CLASS(NAME, CLASS)	\
     72   RISCV_GET_SPEC_CLASS(ISA, isa, NAME, CLASS)
     73 #define RISCV_GET_PRIV_SPEC_CLASS(NAME, CLASS)	\
     74   RISCV_GET_SPEC_CLASS(PRIV, priv, NAME, CLASS)
     75 #define RISCV_GET_PRIV_SPEC_NAME(NAME, CLASS)	\
     76   RISCV_GET_SPEC_NAME(PRIV, priv, NAME, CLASS)
     77 
     78 extern void
     79 riscv_get_priv_spec_class_from_numbers (unsigned int,
     80 					unsigned int,
     81 					unsigned int,
     82 					enum riscv_spec_class *);
     83 
     84 extern bool
     85 riscv_elf_is_mapping_symbols (const char *);
     86