1# This shell script emits a C file. -*- C -*-
2# Copyright 2007 Free Software Foundation, Inc.
3# Contributed by M R Swami Reddy <MR.Swami.Reddy@nsc.com>
4#
5# This file is part of GLD, the Gnu Linker.
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 2 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, MA 02110-1301, USA.
20#
21
22# This file is sourced from elf32.em, and defines extra cr16-elf
23# specific routines.
24#
25cat >>e${EMULATION_NAME}.c <<EOF
26
27#include "ldctor.h"
28
29/* Flag for the emulation-specific "--no-relax" option.  */
30static bfd_boolean disable_relaxation = FALSE;
31
32static void
33cr16elf_after_parse (void)
34{
35  /* Always behave as if called with --sort-common command line
36     option.
37     This is to emulate the CRTools' method of keeping variables
38     of different alignment in separate sections.  */
39  config.sort_common = TRUE;
40
41  /* Don't create a demand-paged executable, since this feature isn't
42     meaninful in CR16 embedded systems. Moreover, when magic_demand_paged
43     is true the link sometimes fails.  */
44  config.magic_demand_paged = FALSE;
45}
46
47/* This is called after the sections have been attached to output
48   sections, but before any sizes or addresses have been set.  */
49
50static void
51cr16elf_before_allocation (void)
52{
53  /* Call the default first.  */
54  gld${EMULATION_NAME}_before_allocation ();
55
56  /* Enable relaxation by default if the "--no-relax" option was not
57     specified.  This is done here instead of in the before_parse hook
58     because there is a check in main() to prohibit use of --relax and
59     -r together.  */
60
61  if (!disable_relaxation)
62    command_line.relax = TRUE;
63}
64
65EOF
66
67# Define some shell vars to insert bits of code into the standard elf
68# parse_args and list_options functions.
69#
70PARSE_AND_LIST_PROLOGUE='
71#define OPTION_NO_RELAX			301
72'
73
74PARSE_AND_LIST_LONGOPTS='
75  { "no-relax", no_argument, NULL, OPTION_NO_RELAX},
76'
77
78PARSE_AND_LIST_OPTIONS='
79  fprintf (file, _("  --no-relax                  Do not relax branches\n"));
80'
81
82PARSE_AND_LIST_ARGS_CASES='
83    case OPTION_NO_RELAX:
84      disable_relaxation = TRUE;
85      break;
86'
87
88# Put these extra cr16-elf routines in ld_${EMULATION_NAME}_emulation
89#
90LDEMUL_AFTER_PARSE=cr16elf_after_parse
91LDEMUL_BEFORE_ALLOCATION=cr16elf_before_allocation
92
93