| 1 | /* BFD support for the Axis CRIS architecture. |
| 2 | Copyright (C) 2000-2018 Free Software Foundation, Inc. |
| 3 | Contributed by Axis Communications AB. |
| 4 | Written by Hans-Peter Nilsson. |
| 5 | |
| 6 | This file is part of BFD, the Binary File Descriptor library. |
| 7 | |
| 8 | This program is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation; either version 3 of the License, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | This program is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with this program; if not, write to the Free Software |
| 20 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
| 21 | MA 02110-1301, USA. */ |
| 22 | |
| 23 | #include "sysdep.h" |
| 24 | #include "bfd.h" |
| 25 | #include "libbfd.h" |
| 26 | |
| 27 | /* This routine is provided two arch_infos and returns the lowest common |
| 28 | denominator. CRIS v0..v10 vs. v32 are not compatible in general, but |
| 29 | there's a compatible subset for which we provide an arch_info. */ |
| 30 | |
| 31 | static const bfd_arch_info_type * get_compatible |
| 32 | (const bfd_arch_info_type *, const bfd_arch_info_type *); |
| 33 | |
| 34 | static const bfd_arch_info_type * |
| 35 | get_compatible (const bfd_arch_info_type *a, |
| 36 | const bfd_arch_info_type *b) |
| 37 | { |
| 38 | /* Arches must match. */ |
| 39 | if (a->arch != b->arch) |
| 40 | return NULL; |
| 41 | |
| 42 | /* If either is the compatible mach, return the other. */ |
| 43 | if (a->mach == bfd_mach_cris_v10_v32) |
| 44 | return b; |
| 45 | if (b->mach == bfd_mach_cris_v10_v32) |
| 46 | return a; |
| 47 | |
| 48 | #if 0 |
| 49 | /* The code below is disabled but kept as a warning. |
| 50 | See ldlang.c:lang_check. Quite illogically, incompatible arches |
| 51 | (as signalled by this function) are only *warned* about, while with |
| 52 | this function signalling compatible ones, we can have the |
| 53 | cris_elf_merge_private_bfd_data function return an error. This is |
| 54 | undoubtedly a FIXME: in general. Also, the |
| 55 | command_line.warn_mismatch flag and the --no-warn-mismatch option |
| 56 | are misnamed for the multitude of ports that signal compatibility: |
| 57 | it is there an error, not a warning. We work around it by |
| 58 | pretending matching machs here. */ |
| 59 | |
| 60 | /* Except for the compatible mach, machs must match. */ |
| 61 | if (a->mach != b->mach) |
| 62 | return NULL; |
| 63 | #endif |
| 64 | |
| 65 | return a; |
| 66 | } |
| 67 | |
| 68 | #define N(NUMBER, PRINT, NEXT) \ |
| 69 | { 32, 32, 8, bfd_arch_cris, NUMBER, "cris", PRINT, 1, FALSE, \ |
| 70 | get_compatible, bfd_default_scan, bfd_arch_default_fill, NEXT } |
| 71 | |
| 72 | static const bfd_arch_info_type bfd_cris_arch_compat_v10_v32 = |
| 73 | N (bfd_mach_cris_v10_v32, "cris:common_v10_v32", NULL); |
| 74 | |
| 75 | static const bfd_arch_info_type bfd_cris_arch_v32 = |
| 76 | N (bfd_mach_cris_v32, "crisv32", &bfd_cris_arch_compat_v10_v32); |
| 77 | |
| 78 | const bfd_arch_info_type bfd_cris_arch = |
| 79 | { |
| 80 | 32, /* There's 32 bits_per_word. */ |
| 81 | 32, /* There's 32 bits_per_address. */ |
| 82 | 8, /* There's 8 bits_per_byte. */ |
| 83 | bfd_arch_cris, /* One of enum bfd_architecture, defined |
| 84 | in archures.c and provided in |
| 85 | generated header files. */ |
| 86 | bfd_mach_cris_v0_v10, /* Random BFD-internal number for this |
| 87 | machine, similarly listed in |
| 88 | archures.c. Not emitted in output. */ |
| 89 | "cris", /* The arch_name. */ |
| 90 | "cris", /* The printable name is the same. */ |
| 91 | 1, /* Section alignment power; each section |
| 92 | is aligned to (only) 2^1 bytes. */ |
| 93 | TRUE, /* This is the default "machine". */ |
| 94 | get_compatible, /* A function for testing |
| 95 | "machine" compatibility of two |
| 96 | bfd_arch_info_type. */ |
| 97 | bfd_default_scan, /* Check if a bfd_arch_info_type is a |
| 98 | match. */ |
| 99 | bfd_arch_default_fill, /* Default fill. */ |
| 100 | &bfd_cris_arch_v32 /* Pointer to next bfd_arch_info_type in |
| 101 | the same family. */ |
| 102 | }; |
| 103 | |
| 104 | /* |
| 105 | * Local variables: |
| 106 | * eval: (c-set-style "gnu") |
| 107 | * indent-tabs-mode: t |
| 108 | * End: |
| 109 | */ |