| 1 | /* RISC-V ELF specific backend routines. |
| 2 | Copyright (C) 2011-2020 Free Software Foundation, Inc. |
| 3 | |
| 4 | Contributed by Andrew Waterman (andrew@sifive.com). |
| 5 | Based on MIPS target. |
| 6 | |
| 7 | This file is part of BFD, the Binary File Descriptor library. |
| 8 | |
| 9 | This program is free software; you can redistribute it and/or modify |
| 10 | it under the terms of the GNU General Public License as published by |
| 11 | the Free Software Foundation; either version 3 of the License, or |
| 12 | (at your option) any later version. |
| 13 | |
| 14 | This program is distributed in the hope that it will be useful, |
| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | GNU General Public License for more details. |
| 18 | |
| 19 | You should have received a copy of the GNU General Public License |
| 20 | along with this program; see the file COPYING3. If not, |
| 21 | see <http://www.gnu.org/licenses/>. */ |
| 22 | |
| 23 | #include "elf/common.h" |
| 24 | #include "elf/internal.h" |
| 25 | |
| 26 | extern reloc_howto_type * |
| 27 | riscv_reloc_name_lookup (bfd *, const char *); |
| 28 | |
| 29 | extern reloc_howto_type * |
| 30 | riscv_reloc_type_lookup (bfd *, bfd_reloc_code_real_type); |
| 31 | |
| 32 | extern reloc_howto_type * |
| 33 | riscv_elf_rtype_to_howto (bfd *, unsigned int r_type); |
| 34 | |
| 35 | #define RISCV_DONT_CARE_VERSION -1 |
| 36 | |
| 37 | /* The information of architecture attribute. */ |
| 38 | struct riscv_subset_t |
| 39 | { |
| 40 | const char *name; |
| 41 | int major_version; |
| 42 | int minor_version; |
| 43 | struct riscv_subset_t *next; |
| 44 | }; |
| 45 | |
| 46 | typedef struct riscv_subset_t riscv_subset_t; |
| 47 | |
| 48 | typedef struct { |
| 49 | riscv_subset_t *head; |
| 50 | riscv_subset_t *tail; |
| 51 | } riscv_subset_list_t; |
| 52 | |
| 53 | extern void |
| 54 | riscv_release_subset_list (riscv_subset_list_t *); |
| 55 | |
| 56 | extern void |
| 57 | riscv_add_subset (riscv_subset_list_t *, |
| 58 | const char *, |
| 59 | int, int); |
| 60 | |
| 61 | extern riscv_subset_t * |
| 62 | riscv_lookup_subset (const riscv_subset_list_t *, |
| 63 | const char *); |
| 64 | |
| 65 | extern riscv_subset_t * |
| 66 | riscv_lookup_subset_version (const riscv_subset_list_t *, |
| 67 | const char *, |
| 68 | int, int); |
| 69 | |
| 70 | typedef struct { |
| 71 | riscv_subset_list_t *subset_list; |
| 72 | void (*error_handler) (const char *, |
| 73 | ...) ATTRIBUTE_PRINTF_1; |
| 74 | unsigned *xlen; |
| 75 | void (*get_default_version) (const char *, |
| 76 | unsigned int *, |
| 77 | unsigned int *); |
| 78 | } riscv_parse_subset_t; |
| 79 | |
| 80 | extern bfd_boolean |
| 81 | riscv_parse_subset (riscv_parse_subset_t *, |
| 82 | const char *); |
| 83 | |
| 84 | extern const char * |
| 85 | riscv_supported_std_ext (void); |
| 86 | |
| 87 | extern void |
| 88 | riscv_release_subset_list (riscv_subset_list_t *); |
| 89 | |
| 90 | extern char * |
| 91 | riscv_arch_str (unsigned, const riscv_subset_list_t *); |
| 92 | |
| 93 | extern size_t |
| 94 | riscv_estimate_digit (unsigned); |
| 95 | |
| 96 | /* ISA extension name class. E.g. "zbb" corresponds to RV_ISA_CLASS_Z, |
| 97 | "xargs" corresponds to RV_ISA_CLASS_X, etc. Order is important |
| 98 | here. */ |
| 99 | |
| 100 | typedef enum riscv_isa_ext_class |
| 101 | { |
| 102 | RV_ISA_CLASS_S, |
| 103 | RV_ISA_CLASS_Z, |
| 104 | RV_ISA_CLASS_X, |
| 105 | RV_ISA_CLASS_UNKNOWN |
| 106 | } riscv_isa_ext_class_t; |
| 107 | |
| 108 | /* Classify the argument 'ext' into one of riscv_isa_ext_class_t. */ |
| 109 | |
| 110 | riscv_isa_ext_class_t |
| 111 | riscv_get_prefix_class (const char *); |