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[binutils.git] / bfd / cpu-cris.c
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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.
7 This file is part of BFD, the Binary File Descriptor library.
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.
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.
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. */
24 #include "sysdep.h"
25 #include "bfd.h"
26 #include "libbfd.h"
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. */
32 static const bfd_arch_info_type * get_compatible
33 PARAMS ((const bfd_arch_info_type *, const bfd_arch_info_type *));
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;
40 /* Arches must match. */
41 if (a->arch != b->arch)
42 return NULL;
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;
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. */
62 /* Except for the compatible mach, machs must match. */
63 if (a->mach != b->mach)
64 return NULL;
65 #endif
67 return a;
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 }
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);
77 static const bfd_arch_info_type bfd_cris_arch_v32 =
78 N (bfd_mach_cris_v32, "crisv32", &bfd_cris_arch_compat_v10_v32);
80 const bfd_arch_info_type bfd_cris_arch =
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. */
106 * Local variables:
107 * eval: (c-set-style "gnu")
108 * indent-tabs-mode: t
109 * End: