1 /* BFD backend for RISC-V 2 Copyright (C) 2011-2017 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 "sysdep.h" 24 #include "bfd.h" 25 #include "libbfd.h" 26 27 /* This routine is provided two arch_infos and returns an arch_info 28 that is compatible with both, or NULL if none exists. */ 29 30 static const bfd_arch_info_type * 31 riscv_compatible (const bfd_arch_info_type *a, const bfd_arch_info_type *b) 32 { 33 if (a->arch != b->arch) 34 return NULL; 35 36 /* Machine compatibility is checked in 37 _bfd_riscv_elf_merge_private_bfd_data. */ 38 39 return a; 40 } 41 42 #define N(BITS_WORD, BITS_ADDR, NUMBER, PRINT, DEFAULT, NEXT) \ 43 { \ 44 BITS_WORD, /* bits in a word */ \ 45 BITS_ADDR, /* bits in an address */ \ 46 8, /* 8 bits in a byte */ \ 47 bfd_arch_riscv, \ 48 NUMBER, \ 49 "riscv", \ 50 PRINT, \ 51 3, \ 52 DEFAULT, \ 53 riscv_compatible, \ 54 bfd_default_scan, \ 55 bfd_arch_default_fill, \ 56 NEXT, \ 57 } 58 59 /* This enum must be kept in the same order as arch_info_struct. */ 60 enum 61 { 62 I_riscv64, 63 I_riscv32 64 }; 65 66 #define NN(index) (&arch_info_struct[(index) + 1]) 67 68 /* This array must be kept in the same order as the anonymous enum above, 69 and each entry except the last should end with NN (my enum value). */ 70 static const bfd_arch_info_type arch_info_struct[] = 71 { 72 N (64, 64, bfd_mach_riscv64, "riscv:rv64", FALSE, NN (I_riscv64)), 73 N (32, 32, bfd_mach_riscv32, "riscv:rv32", FALSE, 0) 74 }; 75 76 /* The default architecture is riscv:rv64. */ 77 78 const bfd_arch_info_type bfd_riscv_arch = 79 N (64, 64, 0, "riscv", TRUE, &arch_info_struct[0]); 80