ld/emultempl/crxelf.em

   1 # This shell script emits a C file. -*- C -*-
   2 #   Copyright 2004, 2005, 2007
   3 #   Free Software Foundation, Inc.
   4 #
   5 # This file is part of the GNU Binutils.
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 3 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program; if not, write to the Free Software
  19 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  20 # MA 02110-1301, USA.
  21 #
  22
  23 # This file is sourced from elf32.em, and defines extra crx-elf
  24 # specific routines.
  25 #
  26 fragment <<EOF
  27
  28 #include "ldctor.h"
  29
  30 /* Flag for the emulation-specific "--no-relax" option.  */
  31 static bfd_boolean disable_relaxation = FALSE;
  32
  33 static void crxelf_after_parse (void);
  34
  35 static void
  36 crxelf_after_parse (void)
  37 {
  38   /* Always behave as if called with --sort-common command line
  39      option.
  40      This is to emulate the CRTools' method of keeping variables
  41      of different alignment in separate sections.  */
  42   config.sort_common = TRUE;
  43
  44   /* Don't create a demand-paged executable, since this feature isn't
  45      meaninful in CRX embedded systems. Moreover, when magic_demand_paged
  46      is true the link sometimes fails.  */
  47   config.magic_demand_paged = FALSE;
  48 }
  49
  50 /* This is called after the sections have been attached to output
  51    sections, but before any sizes or addresses have been set.  */
  52
  53 static void
  54 crxelf_before_allocation (void)
  55 {
  56   /* Call the default first.  */
  57   gld${EMULATION_NAME}_before_allocation ();
  58
  59   /* Enable relaxation by default if the "--no-relax" option was not
  60      specified.  This is done here instead of in the before_parse hook
  61      because there is a check in main() to prohibit use of --relax and
  62      -r together.  */
  63
  64   if (!disable_relaxation)
  65     command_line.relax = TRUE;
  66 }
  67
  68 EOF
  69
  70 # Define some shell vars to insert bits of code into the standard elf
  71 # parse_args and list_options functions.
  72 #
  73 PARSE_AND_LIST_PROLOGUE='
  74 #define OPTION_NO_RELAX                 301
  75 '
  76
  77 PARSE_AND_LIST_LONGOPTS='
  78   { "no-relax", no_argument, NULL, OPTION_NO_RELAX},
  79 '
  80
  81 PARSE_AND_LIST_OPTIONS='
  82   fprintf (file, _("  --no-relax                  Do not relax branches\n"));
  83 '
  84
  85 PARSE_AND_LIST_ARGS_CASES='
  86     case OPTION_NO_RELAX:
  87       disable_relaxation = TRUE;
  88       break;
  89 '
  90
  91 # Put these extra crx-elf routines in ld_${EMULATION_NAME}_emulation
  92 #
  93 LDEMUL_AFTER_PARSE=crxelf_after_parse
  94 LDEMUL_BEFORE_ALLOCATION=crxelf_before_allocation