1 /* BFD support for the Axis CRIS architecture. 2 Copyright 2000, 2002, 2004, 2005, 2007, 2012 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 (const bfd_arch_info_type *, const bfd_arch_info_type *); 34 35 static const bfd_arch_info_type * 36 get_compatible (const bfd_arch_info_type *a, 37 const bfd_arch_info_type *b) 38 { 39 /* Arches must match. */ 40 if (a->arch != b->arch) 41 return NULL; 42 43 /* If either is the compatible mach, return the other. */ 44 if (a->mach == bfd_mach_cris_v10_v32) 45 return b; 46 if (b->mach == bfd_mach_cris_v10_v32) 47 return a; 48 49 #if 0 50 /* The code below is disabled but kept as a warning. 51 See ldlang.c:lang_check. Quite illogically, incompatible arches 52 (as signalled by this function) are only *warned* about, while with 53 this function signalling compatible ones, we can have the 54 cris_elf_merge_private_bfd_data function return an error. This is 55 undoubtedly a FIXME: in general. Also, the 56 command_line.warn_mismatch flag and the --no-warn-mismatch option 57 are misnamed for the multitude of ports that signal compatibility: 58 it is there an error, not a warning. We work around it by 59 pretending matching machs here. */ 60 61 /* Except for the compatible mach, machs must match. */ 62 if (a->mach != b->mach) 63 return NULL; 64 #endif 65 66 return a; 67 } 68 69 #define N(NUMBER, PRINT, NEXT) \ 70 { 32, 32, 8, bfd_arch_cris, NUMBER, "cris", PRINT, 1, FALSE, \ 71 get_compatible, bfd_default_scan, bfd_arch_default_fill, NEXT } 72 73 static const bfd_arch_info_type bfd_cris_arch_compat_v10_v32 = 74 N (bfd_mach_cris_v10_v32, "cris:common_v10_v32", NULL); 75 76 static const bfd_arch_info_type bfd_cris_arch_v32 = 77 N (bfd_mach_cris_v32, "crisv32", &bfd_cris_arch_compat_v10_v32); 78 79 const bfd_arch_info_type bfd_cris_arch = 80 { 81 32, /* There's 32 bits_per_word. */ 82 32, /* There's 32 bits_per_address. */ 83 8, /* There's 8 bits_per_byte. */ 84 bfd_arch_cris, /* One of enum bfd_architecture, defined 85 in archures.c and provided in 86 generated header files. */ 87 bfd_mach_cris_v0_v10, /* Random BFD-internal number for this 88 machine, similarly listed in 89 archures.c. Not emitted in output. */ 90 "cris", /* The arch_name. */ 91 "cris", /* The printable name is the same. */ 92 1, /* Section alignment power; each section 93 is aligned to (only) 2^1 bytes. */ 94 TRUE, /* This is the default "machine". */ 95 get_compatible, /* A function for testing 96 "machine" compatibility of two 97 bfd_arch_info_type. */ 98 bfd_default_scan, /* Check if a bfd_arch_info_type is a 99 match. */ 100 bfd_arch_default_fill, /* Default fill. */ 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 */ 111