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[/] [open8_urisc/] [trunk/] [gnu/] [binutils/] [bfd/] [cpu-cris.c] - Blame information for rev 166

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1 14 khays
/* BFD support for the Axis CRIS architecture.
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   Copyright 2000, 2002, 2004, 2005, 2007
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   Free Software Foundation, Inc.
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   Contributed by Axis Communications AB.
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   Written by Hans-Peter Nilsson.
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   This file is part of BFD, the Binary File Descriptor library.
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   This program is free software; you can redistribute it and/or modify
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   it under the terms of the GNU General Public License as published by
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   the Free Software Foundation; either version 3 of the License, or
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   (at your option) any later version.
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   This program is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
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   along with this program; if not, write to the Free Software
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   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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   MA 02110-1301, USA.  */
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#include "sysdep.h"
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#include "bfd.h"
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#include "libbfd.h"
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/* This routine is provided two arch_infos and returns the lowest common
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   denominator.  CRIS v0..v10 vs. v32 are not compatible in general, but
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   there's a compatible subset for which we provide an arch_info.  */
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static const bfd_arch_info_type * get_compatible
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  PARAMS ((const bfd_arch_info_type *, const bfd_arch_info_type *));
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static const bfd_arch_info_type *
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get_compatible (a,b)
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     const bfd_arch_info_type *a;
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     const bfd_arch_info_type *b;
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{
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  /* Arches must match.  */
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  if (a->arch != b->arch)
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   return NULL;
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  /* If either is the compatible mach, return the other.  */
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  if (a->mach == bfd_mach_cris_v10_v32)
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    return b;
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  if (b->mach == bfd_mach_cris_v10_v32)
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    return a;
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#if 0
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  /* The code below is disabled but kept as a warning.
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     See ldlang.c:lang_check.  Quite illogically, incompatible arches
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     (as signalled by this function) are only *warned* about, while with
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     this function signalling compatible ones, we can have the
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     cris_elf_merge_private_bfd_data function return an error.  This is
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     undoubtedly a FIXME: in general.  Also, the
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     command_line.warn_mismatch flag and the --no-warn-mismatch option
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     are misnamed for the multitude of ports that signal compatibility:
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     it is there an error, not a warning.  We work around it by
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     pretending matching machs here.  */
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  /* Except for the compatible mach, machs must match.  */
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  if (a->mach != b->mach)
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    return NULL;
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#endif
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  return a;
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}
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#define N(NUMBER, PRINT, NEXT)  \
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 { 32, 32, 8, bfd_arch_cris, NUMBER, "cris", PRINT, 1, FALSE, \
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   get_compatible, bfd_default_scan, bfd_arch_default_fill, NEXT }
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static const bfd_arch_info_type bfd_cris_arch_compat_v10_v32 =
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 N (bfd_mach_cris_v10_v32, "cris:common_v10_v32", NULL);
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static const bfd_arch_info_type bfd_cris_arch_v32 =
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 N (bfd_mach_cris_v32, "crisv32", &bfd_cris_arch_compat_v10_v32);
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const bfd_arch_info_type bfd_cris_arch =
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{
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  32,                           /* There's 32 bits_per_word.  */
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  32,                           /* There's 32 bits_per_address.  */
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  8,                            /* There's 8 bits_per_byte.  */
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  bfd_arch_cris,                /* One of enum bfd_architecture, defined
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                                   in archures.c and provided in
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                                   generated header files.  */
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  bfd_mach_cris_v0_v10,         /* Random BFD-internal number for this
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                                   machine, similarly listed in
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                                   archures.c.  Not emitted in output.  */
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  "cris",                       /* The arch_name.  */
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  "cris",                       /* The printable name is the same.  */
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  1,                            /* Section alignment power; each section
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                                   is aligned to (only) 2^1 bytes.  */
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  TRUE,                         /* This is the default "machine".  */
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  get_compatible,               /* A function for testing
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                                   "machine" compatibility of two
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                                   bfd_arch_info_type.  */
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  bfd_default_scan,             /* Check if a bfd_arch_info_type is a
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                                   match.  */
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  bfd_arch_default_fill,        /* Default fill.  */
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  &bfd_cris_arch_v32            /* Pointer to next bfd_arch_info_type in
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                                   the same family.  */
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};
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/*
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 * Local variables:
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 * eval: (c-set-style "gnu")
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 * indent-tabs-mode: t
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 * End:
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 */

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