1/* BFD support for the Axis CRIS architecture. 2 Copyright (C) 2000-2017 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 31static const bfd_arch_info_type * get_compatible 32 (const bfd_arch_info_type *, const bfd_arch_info_type *); 33 34static const bfd_arch_info_type * 35get_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 72static const bfd_arch_info_type bfd_cris_arch_compat_v10_v32 = 73 N (bfd_mach_cris_v10_v32, "cris:common_v10_v32", NULL); 74 75static const bfd_arch_info_type bfd_cris_arch_v32 = 76 N (bfd_mach_cris_v32, "crisv32", &bfd_cris_arch_compat_v10_v32); 77 78const 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 */ 110