Subversion Repositories openrisc_me

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

# It does some substitutions.

if [ -z "$MACHINE" ]; then

  OUTPUT_ARCH=${ARCH}

else

  OUTPUT_ARCH=${ARCH}:${MACHINE}

fi

fragment <

/* This file is is generated by a shell script.  DO NOT EDIT! */

/* Linux a.out emulation code for ${EMULATION_NAME}

   Copyright 1991, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002,

   2003, 2004, 2005, 2007, 2008 Free Software Foundation, Inc.

   Written by Steve Chamberlain 

   Linux support by Eric Youngdale 

   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.  */

#define TARGET_IS_${EMULATION_NAME}

#include "sysdep.h"

#include "bfd.h"

#include "bfdlink.h"

#include "ld.h"

#include "ldmain.h"

#include "ldmisc.h"

#include "ldexp.h"

#include "ldlang.h"

#include "ldfile.h"

#include "ldemul.h"

static void

gld${EMULATION_NAME}_before_parse (void)

{

  ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);

  config.dynamic_link = TRUE;

  config.has_shared = TRUE;

}

/* Try to open a dynamic archive.  This is where we know that Linux

   dynamic libraries have an extension of .sa.  */

static bfd_boolean

gld${EMULATION_NAME}_open_dynamic_archive

  (const char *arch, search_dirs_type *search, lang_input_statement_type *entry)

{

  char *string;

  if (! entry->is_archive)

    return FALSE;

  string = (char *) xmalloc (strlen (search->name)

                             + strlen (entry->filename)

                             + strlen (arch)

                             + sizeof "/lib.sa");

  sprintf (string, "%s/lib%s%s.sa", search->name, entry->filename, arch);

  if (! ldfile_try_open_bfd (string, entry))

    {

      free (string);

      return FALSE;

    }

  entry->filename = string;

  return TRUE;

}

/* This is called by the create_output_section_statements routine via

   lang_for_each_statement.  It locates any address assignment to

   .text, and modifies it to include the size of the headers.  This

   causes -Ttext to mean the starting address of the header, rather

   than the starting address of .text, which is compatible with other

   Linux tools.  */

static void

gld${EMULATION_NAME}_find_address_statement (lang_statement_union_type *s)

{

  if (s->header.type == lang_address_statement_enum

      && strcmp (s->address_statement.section_name, ".text") == 0)

    {

      ASSERT (s->address_statement.address->type.node_class == etree_value);

      s->address_statement.address->value.value += 0x20;

    }

}

/* This is called before opening the input BFD's.  */

static void

gld${EMULATION_NAME}_create_output_section_statements (void)

{

  lang_for_each_statement (gld${EMULATION_NAME}_find_address_statement);

}

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

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

static void

gld${EMULATION_NAME}_before_allocation (void)

{

  if (link_info.relocatable)

    return;

  /* Let the backend work out the sizes of any sections required by

     dynamic linking.  */

  if (! bfd_${EMULATION_NAME}_size_dynamic_sections (link_info.output_bfd,

                                                     &link_info))

    einfo ("%P%F: failed to set dynamic section sizes: %E\n");

  before_allocation_default ();

}

static char *

gld${EMULATION_NAME}_get_script (int *isfile)

EOF

if test -n "$COMPILE_IN"

then

# Scripts compiled in.

# sed commands to quote an ld script as a C string.

sc="-f stringify.sed"

fragment <

{

  *isfile = 0;

  if (link_info.relocatable && config.build_constructors)

    return

EOF

sed $sc ldscripts/${EMULATION_NAME}.xu                 >> e${EMULATION_NAME}.c

echo '  ; else if (link_info.relocatable) return'     >> e${EMULATION_NAME}.c

sed $sc ldscripts/${EMULATION_NAME}.xr                 >> e${EMULATION_NAME}.c

echo '  ; else if (!config.text_read_only) return'     >> e${EMULATION_NAME}.c

sed $sc ldscripts/${EMULATION_NAME}.xbn                >> e${EMULATION_NAME}.c

echo '  ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c

sed $sc ldscripts/${EMULATION_NAME}.xn                 >> e${EMULATION_NAME}.c

echo '  ; else return'                                 >> e${EMULATION_NAME}.c

sed $sc ldscripts/${EMULATION_NAME}.x                  >> e${EMULATION_NAME}.c

echo '; }'                                             >> e${EMULATION_NAME}.c

else

# Scripts read from the filesystem.

fragment <

{

  *isfile = 1;

  if (link_info.relocatable && config.build_constructors)

    return "ldscripts/${EMULATION_NAME}.xu";

  else if (link_info.relocatable)

    return "ldscripts/${EMULATION_NAME}.xr";

  else if (!config.text_read_only)

    return "ldscripts/${EMULATION_NAME}.xbn";

  else if (!config.magic_demand_paged)

    return "ldscripts/${EMULATION_NAME}.xn";

  else

    return "ldscripts/${EMULATION_NAME}.x";

}

EOF

fi

fragment <

struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =

{

  gld${EMULATION_NAME}_before_parse,

  syslib_default,

  hll_default,

  after_parse_default,

  after_open_default,

  after_allocation_default,

  set_output_arch_default,

  ldemul_default_target,

  gld${EMULATION_NAME}_before_allocation,

  gld${EMULATION_NAME}_get_script,

  "${EMULATION_NAME}",

  "${OUTPUT_FORMAT}",

  finish_default,

  gld${EMULATION_NAME}_create_output_section_statements,

  gld${EMULATION_NAME}_open_dynamic_archive,

  NULL, /* place orphan */

  NULL, /* set symbols */

  NULL, /* parse args */

  NULL, /* add_options */

  NULL, /* handle_option */

  NULL, /* unrecognized file */

  NULL, /* list options */

  NULL, /* recognized file */

  NULL, /* find_potential_libraries */

  NULL  /* new_vers_pattern */

};

EOF