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 */ 111