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[/] [openrisc/] [trunk/] [gnu-stable/] [binutils-2.20.1/] [ld/] [emultempl/] [linux.em] - Blame information for rev 816

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Line No. Rev Author Line
1 205 julius
# This shell script emits a C file. -*- C -*-
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# It does some substitutions.
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if [ -z "$MACHINE" ]; then
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  OUTPUT_ARCH=${ARCH}
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else
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  OUTPUT_ARCH=${ARCH}:${MACHINE}
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fi
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fragment <
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/* This file is is generated by a shell script.  DO NOT EDIT! */
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/* Linux a.out emulation code for ${EMULATION_NAME}
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   Copyright 1991, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002,
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   2003, 2004, 2005, 2007, 2008 Free Software Foundation, Inc.
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   Written by Steve Chamberlain 
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   Linux support by Eric Youngdale 
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   This file is part of the GNU Binutils.
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   This program is free software; you can redistribute it and/or modify
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   it under the terms of the GNU General Public License as published by
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   the Free Software Foundation; either version 3 of the License, or
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   (at your option) any later version.
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   This program is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   GNU General Public License for more details.
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29
   You should have received a copy of the GNU General Public License
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   along with this program; if not, write to the Free Software
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   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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   MA 02110-1301, USA.  */
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#define TARGET_IS_${EMULATION_NAME}
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#include "sysdep.h"
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#include "bfd.h"
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#include "bfdlink.h"
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#include "ld.h"
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#include "ldmain.h"
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#include "ldmisc.h"
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#include "ldexp.h"
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#include "ldlang.h"
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#include "ldfile.h"
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#include "ldemul.h"
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static void
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gld${EMULATION_NAME}_before_parse (void)
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{
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  ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
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  config.dynamic_link = TRUE;
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  config.has_shared = TRUE;
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}
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/* Try to open a dynamic archive.  This is where we know that Linux
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   dynamic libraries have an extension of .sa.  */
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static bfd_boolean
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gld${EMULATION_NAME}_open_dynamic_archive
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  (const char *arch, search_dirs_type *search, lang_input_statement_type *entry)
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{
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  char *string;
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  if (! entry->is_archive)
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    return FALSE;
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  string = (char *) xmalloc (strlen (search->name)
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                             + strlen (entry->filename)
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                             + strlen (arch)
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                             + sizeof "/lib.sa");
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  sprintf (string, "%s/lib%s%s.sa", search->name, entry->filename, arch);
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  if (! ldfile_try_open_bfd (string, entry))
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    {
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      free (string);
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      return FALSE;
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    }
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  entry->filename = string;
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  return TRUE;
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}
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/* This is called by the create_output_section_statements routine via
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   lang_for_each_statement.  It locates any address assignment to
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   .text, and modifies it to include the size of the headers.  This
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   causes -Ttext to mean the starting address of the header, rather
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   than the starting address of .text, which is compatible with other
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   Linux tools.  */
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static void
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gld${EMULATION_NAME}_find_address_statement (lang_statement_union_type *s)
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{
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  if (s->header.type == lang_address_statement_enum
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      && strcmp (s->address_statement.section_name, ".text") == 0)
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    {
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      ASSERT (s->address_statement.address->type.node_class == etree_value);
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      s->address_statement.address->value.value += 0x20;
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    }
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}
103
 
104
/* This is called before opening the input BFD's.  */
105
 
106
static void
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gld${EMULATION_NAME}_create_output_section_statements (void)
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{
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  lang_for_each_statement (gld${EMULATION_NAME}_find_address_statement);
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}
111
 
112
/* This is called after the sections have been attached to output
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   sections, but before any sizes or addresses have been set.  */
114
 
115
static void
116
gld${EMULATION_NAME}_before_allocation (void)
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{
118
  if (link_info.relocatable)
119
    return;
120
 
121
  /* Let the backend work out the sizes of any sections required by
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     dynamic linking.  */
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  if (! bfd_${EMULATION_NAME}_size_dynamic_sections (link_info.output_bfd,
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                                                     &link_info))
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    einfo ("%P%F: failed to set dynamic section sizes: %E\n");
126
 
127
  before_allocation_default ();
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}
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static char *
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gld${EMULATION_NAME}_get_script (int *isfile)
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EOF
133
 
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if test -n "$COMPILE_IN"
135
then
136
# Scripts compiled in.
137
 
138
# sed commands to quote an ld script as a C string.
139
sc="-f stringify.sed"
140
 
141
fragment <
142
{
143
  *isfile = 0;
144
 
145
  if (link_info.relocatable && config.build_constructors)
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    return
147
EOF
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sed $sc ldscripts/${EMULATION_NAME}.xu                 >> e${EMULATION_NAME}.c
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echo '  ; else if (link_info.relocatable) return'     >> e${EMULATION_NAME}.c
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sed $sc ldscripts/${EMULATION_NAME}.xr                 >> e${EMULATION_NAME}.c
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echo '  ; else if (!config.text_read_only) return'     >> e${EMULATION_NAME}.c
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sed $sc ldscripts/${EMULATION_NAME}.xbn                >> e${EMULATION_NAME}.c
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echo '  ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
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sed $sc ldscripts/${EMULATION_NAME}.xn                 >> e${EMULATION_NAME}.c
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echo '  ; else return'                                 >> e${EMULATION_NAME}.c
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sed $sc ldscripts/${EMULATION_NAME}.x                  >> e${EMULATION_NAME}.c
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echo '; }'                                             >> e${EMULATION_NAME}.c
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159
else
160
# Scripts read from the filesystem.
161
 
162
fragment <
163
{
164
  *isfile = 1;
165
 
166
  if (link_info.relocatable && config.build_constructors)
167
    return "ldscripts/${EMULATION_NAME}.xu";
168
  else if (link_info.relocatable)
169
    return "ldscripts/${EMULATION_NAME}.xr";
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  else if (!config.text_read_only)
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    return "ldscripts/${EMULATION_NAME}.xbn";
172
  else if (!config.magic_demand_paged)
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    return "ldscripts/${EMULATION_NAME}.xn";
174
  else
175
    return "ldscripts/${EMULATION_NAME}.x";
176
}
177
EOF
178
 
179
fi
180
 
181
fragment <
182
 
183
struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
184
{
185
  gld${EMULATION_NAME}_before_parse,
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  syslib_default,
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  hll_default,
188
  after_parse_default,
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  after_open_default,
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  after_allocation_default,
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  set_output_arch_default,
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  ldemul_default_target,
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  gld${EMULATION_NAME}_before_allocation,
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  gld${EMULATION_NAME}_get_script,
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  "${EMULATION_NAME}",
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  "${OUTPUT_FORMAT}",
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  finish_default,
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  gld${EMULATION_NAME}_create_output_section_statements,
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  gld${EMULATION_NAME}_open_dynamic_archive,
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  NULL, /* place orphan */
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  NULL, /* set symbols */
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  NULL, /* parse args */
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  NULL, /* add_options */
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  NULL, /* handle_option */
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  NULL, /* unrecognized file */
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  NULL, /* list options */
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  NULL, /* recognized file */
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  NULL, /* find_potential_libraries */
209
  NULL  /* new_vers_pattern */
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};
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EOF

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