ld/emultempl/alphaelf.em

   1 # This shell script emits a C file. -*- C -*-
   2 #   Copyright 2003 Free Software Foundation, Inc.
   3 #
   4 # This file is part of GLD, the Gnu Linker.
   5 #
   6 # This program is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 2 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program; if not, write to the Free Software
  18 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19 #
  20
  21 # This file is sourced from elf32.em, and defines extra alpha
  22 # specific routines.
  23 #
  24 cat >>e${EMULATION_NAME}.c <<EOF
  25
  26 #include "elf/internal.h"
  27 #include "elf/alpha.h"
  28 #include "elf-bfd.h"
  29
  30 static void alpha_after_parse PARAMS ((void));
  31 static void alpha_finish PARAMS ((void));
  32
  33 static int elf64alpha_32bit = 0;
  34
  35 /* Set the start address as in the Tru64 ld.  */
  36 #define ALPHA_TEXT_START_32BIT 0x12000000
  37
  38 static void
  39 alpha_after_parse ()
  40 {
  41   if (elf64alpha_32bit && !link_info.shared && !link_info.relocatable)
  42     lang_section_start (".interp",
  43                         exp_binop ('+',
  44                                    exp_intop (ALPHA_TEXT_START_32BIT),
  45                                    exp_nameop (SIZEOF_HEADERS, NULL)));
  46 }
  47
  48 static void
  49 alpha_finish ()
  50 {
  51   if (elf64alpha_32bit)
  52     elf_elfheader (output_bfd)->e_flags |= EF_ALPHA_32BIT;
  53
  54   gld${EMULATION_NAME}_finish ();
  55 }
  56 EOF
  57
  58 # Define some shell vars to insert bits of code into the standard elf
  59 # parse_args and list_options functions.
  60 #
  61 PARSE_AND_LIST_PROLOGUE='
  62 #define OPTION_TASO            300
  63 '
  64
  65 PARSE_AND_LIST_LONGOPTS='
  66   {"taso", no_argument, NULL, OPTION_TASO},
  67 '
  68
  69 PARSE_AND_LIST_OPTIONS='
  70   fprintf (file, _("  -taso\t\t\tLoad executable in the lower 31-bit addressable\n"));
  71   fprintf (file, _("\t\t\t  virtual address range\n"));
  72 '
  73
  74 PARSE_AND_LIST_ARGS_CASES='
  75     case OPTION_TASO:
  76       elf64alpha_32bit = 1;
  77       break;
  78 '
  79
  80 # Put these extra alpha routines in ld_${EMULATION_NAME}_emulation
  81 #
  82 LDEMUL_AFTER_PARSE=alpha_after_parse
  83 LDEMUL_FINISH=alpha_finish