| 1 | /* BFD support for the Axis CRIS architecture. |
| 2 | Copyright 2000, 2002, 2004, 2005, 2007 |
| 3 | Free Software Foundation, Inc. |
| 4 | Contributed by Axis Communications AB. |
| 5 | Written by Hans-Peter Nilsson. |
| 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; if not, write to the Free Software |
| 21 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
| 22 | MA 02110-1301, USA. */ |
| 23 | |
| 24 | #include "sysdep.h" |
| 25 | #include "bfd.h" |
| 26 | #include "libbfd.h" |
| 27 | |
| 28 | /* This routine is provided two arch_infos and returns the lowest common |
| 29 | denominator. CRIS v0..v10 vs. v32 are not compatible in general, but |
| 30 | there's a compatible subset for which we provide an arch_info. */ |
| 31 | |
| 32 | static const bfd_arch_info_type * get_compatible |
| 33 | PARAMS ((const bfd_arch_info_type *, const bfd_arch_info_type *)); |
| 34 | |
| 35 | static const bfd_arch_info_type * |
| 36 | get_compatible (a,b) |
| 37 | const bfd_arch_info_type *a; |
| 38 | const bfd_arch_info_type *b; |
| 39 | { |
| 40 | /* Arches must match. */ |
| 41 | if (a->arch != b->arch) |
| 42 | return NULL; |
| 43 | |
| 44 | /* If either is the compatible mach, return the other. */ |
| 45 | if (a->mach == bfd_mach_cris_v10_v32) |
| 46 | return b; |
| 47 | if (b->mach == bfd_mach_cris_v10_v32) |
| 48 | return a; |
| 49 | |
| 50 | #if 0 |
| 51 | /* The code below is disabled but kept as a warning. |
| 52 | See ldlang.c:lang_check. Quite illogically, incompatible arches |
| 53 | (as signalled by this function) are only *warned* about, while with |
| 54 | this function signalling compatible ones, we can have the |
| 55 | cris_elf_merge_private_bfd_data function return an error. This is |
| 56 | undoubtedly a FIXME: in general. Also, the |
| 57 | command_line.warn_mismatch flag and the --no-warn-mismatch option |
| 58 | are misnamed for the multitude of ports that signal compatibility: |
| 59 | it is there an error, not a warning. We work around it by |
| 60 | pretending matching machs here. */ |
| 61 | |
| 62 | /* Except for the compatible mach, machs must match. */ |
| 63 | if (a->mach != b->mach) |
| 64 | return NULL; |
| 65 | #endif |
| 66 | |
| 67 | return a; |
| 68 | } |
| 69 | |
| 70 | #define N(NUMBER, PRINT, NEXT) \ |
| 71 | { 32, 32, 8, bfd_arch_cris, NUMBER, "cris", PRINT, 1, FALSE, \ |
| 72 | get_compatible, bfd_default_scan, NEXT } |
| 73 | |
| 74 | static const bfd_arch_info_type bfd_cris_arch_compat_v10_v32 = |
| 75 | N (bfd_mach_cris_v10_v32, "cris:common_v10_v32", NULL); |
| 76 | |
| 77 | static const bfd_arch_info_type bfd_cris_arch_v32 = |
| 78 | N (bfd_mach_cris_v32, "crisv32", &bfd_cris_arch_compat_v10_v32); |
| 79 | |
| 80 | const bfd_arch_info_type bfd_cris_arch = |
| 81 | { |
| 82 | 32, /* There's 32 bits_per_word. */ |
| 83 | 32, /* There's 32 bits_per_address. */ |
| 84 | 8, /* There's 8 bits_per_byte. */ |
| 85 | bfd_arch_cris, /* One of enum bfd_architecture, defined |
| 86 | in archures.c and provided in |
| 87 | generated header files. */ |
| 88 | bfd_mach_cris_v0_v10, /* Random BFD-internal number for this |
| 89 | machine, similarly listed in |
| 90 | archures.c. Not emitted in output. */ |
| 91 | "cris", /* The arch_name. */ |
| 92 | "cris", /* The printable name is the same. */ |
| 93 | 1, /* Section alignment power; each section |
| 94 | is aligned to (only) 2^1 bytes. */ |
| 95 | TRUE, /* This is the default "machine". */ |
| 96 | get_compatible, /* A function for testing |
| 97 | "machine" compatibility of two |
| 98 | bfd_arch_info_type. */ |
| 99 | bfd_default_scan, /* Check if a bfd_arch_info_type is a |
| 100 | match. */ |
| 101 | &bfd_cris_arch_v32 /* Pointer to next bfd_arch_info_type in |
| 102 | the same family. */ |
| 103 | }; |
| 104 | |
| 105 | /* |
| 106 | * Local variables: |
| 107 | * eval: (c-set-style "gnu") |
| 108 | * indent-tabs-mode: t |
| 109 | * End: |
| 110 | */ |