Subversion Repositories openrisc_2011-10-31

# This shell script emits a C file. -*- C -*-

#   Copyright 2004, 2005, 2007, 2009

#   Free Software Foundation, Inc.

#

# This file is part of the GNU Binutils.

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 3 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,

# MA 02110-1301, USA.

#

# This file is sourced from elf32.em, and defines extra crx-elf

# specific routines.

#

fragment <

#include "ldctor.h"

/* Flag for the emulation-specific "--no-relax" option.  */

static bfd_boolean disable_relaxation = FALSE;

static void crxelf_after_parse (void);

static void

crxelf_after_parse (void)

{

  /* Always behave as if called with --sort-common command line

     option.

     This is to emulate the CRTools' method of keeping variables

     of different alignment in separate sections.  */

  config.sort_common = TRUE;

  /* Don't create a demand-paged executable, since this feature isn't

     meaninful in CRX embedded systems. Moreover, when magic_demand_paged

     is true the link sometimes fails.  */

  config.magic_demand_paged = FALSE;

  after_parse_default ();

}

/* This is called after the sections have been attached to output

   sections, but before any sizes or addresses have been set.  */

static void

crxelf_before_allocation (void)

{

  /* Call the default first.  */

  gld${EMULATION_NAME}_before_allocation ();

  /* Enable relaxation by default if the "--no-relax" option was not

     specified.  This is done here instead of in the before_parse hook

     because there is a check in main() to prohibit use of --relax and

     -r together.  */

  if (!disable_relaxation)

    command_line.relax = TRUE;

}

EOF

# Define some shell vars to insert bits of code into the standard elf

# parse_args and list_options functions.

#

PARSE_AND_LIST_PROLOGUE='

#define OPTION_NO_RELAX                 301

'

PARSE_AND_LIST_LONGOPTS='

  { "no-relax", no_argument, NULL, OPTION_NO_RELAX},

'

PARSE_AND_LIST_OPTIONS='

  fprintf (file, _("  --no-relax                  Do not relax branches\n"));

'

PARSE_AND_LIST_ARGS_CASES='

    case OPTION_NO_RELAX:

      disable_relaxation = TRUE;

      break;

'

# Put these extra crx-elf routines in ld_${EMULATION_NAME}_emulation

#

LDEMUL_AFTER_PARSE=crxelf_after_parse

LDEMUL_BEFORE_ALLOCATION=crxelf_before_allocation