| 1 | # This shell script emits a C file. -*- C -*- |
| 2 | # Copyright (C) 2006-2020 Free Software Foundation, Inc. |
| 3 | # |
| 4 | # This file is part of the GNU Binutils. |
| 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 3 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., 51 Franklin Street - Fifth Floor, Boston, |
| 19 | # MA 02110-1301, USA. |
| 20 | # |
| 21 | |
| 22 | if test -n "$VXWORKS_BASE_EM_FILE" ; then |
| 23 | source_em "${srcdir}/emultempl/${VXWORKS_BASE_EM_FILE}.em" |
| 24 | fi |
| 25 | |
| 26 | fragment <<EOF |
| 27 | |
| 28 | static int force_dynamic; |
| 29 | |
| 30 | static void |
| 31 | vxworks_before_parse (void) |
| 32 | { |
| 33 | ${LDEMUL_BEFORE_PARSE-gld${EMULATION_NAME}_before_parse} (); |
| 34 | config.rpath_separator = ';'; |
| 35 | } |
| 36 | |
| 37 | static void |
| 38 | vxworks_after_open (void) |
| 39 | { |
| 40 | ${LDEMUL_AFTER_OPEN-gld${EMULATION_NAME}_after_open} (); |
| 41 | |
| 42 | if (force_dynamic |
| 43 | && link_info.input_bfds |
| 44 | && bfd_get_flavour (link_info.output_bfd) == bfd_target_elf_flavour |
| 45 | && !_bfd_elf_link_create_dynamic_sections (link_info.input_bfds, |
| 46 | &link_info)) |
| 47 | einfo (_("%X%P: cannot create dynamic sections %E\n")); |
| 48 | |
| 49 | if (!force_dynamic |
| 50 | && !bfd_link_pic (&link_info) |
| 51 | && bfd_get_flavour (link_info.output_bfd) == bfd_target_elf_flavour |
| 52 | && elf_hash_table (&link_info)->dynamic_sections_created) |
| 53 | einfo (_("%X%P: dynamic sections created in non-dynamic link\n")); |
| 54 | } |
| 55 | |
| 56 | EOF |
| 57 | |
| 58 | PARSE_AND_LIST_PROLOGUE=$PARSE_AND_LIST_PROLOGUE' |
| 59 | enum { |
| 60 | OPTION_FORCE_DYNAMIC = 501 |
| 61 | }; |
| 62 | ' |
| 63 | |
| 64 | PARSE_AND_LIST_LONGOPTS=$PARSE_AND_LIST_LONGOPTS' |
| 65 | {"force-dynamic", no_argument, NULL, OPTION_FORCE_DYNAMIC}, |
| 66 | ' |
| 67 | |
| 68 | PARSE_AND_LIST_OPTIONS=$PARSE_AND_LIST_OPTIONS' |
| 69 | fprintf (file, _("\ |
| 70 | --force-dynamic Always create dynamic sections\n")); |
| 71 | ' |
| 72 | |
| 73 | PARSE_AND_LIST_ARGS_CASES=$PARSE_AND_LIST_ARGS_CASES' |
| 74 | case OPTION_FORCE_DYNAMIC: |
| 75 | force_dynamic = 1; |
| 76 | break; |
| 77 | ' |
| 78 | |
| 79 | # Hook in our routines above. There are three possibilities: |
| 80 | # |
| 81 | # (1) VXWORKS_BASE_EM_FILE did not set the hook's LDEMUL_FOO variable. |
| 82 | # We want to define LDEMUL_FOO to vxworks_foo in that case, |
| 83 | # |
| 84 | # (2) VXWORKS_BASE_EM_FILE set the hook's LDEMUL_FOO variable to |
| 85 | # gld${EMULATION_NAME}_foo. This means that the file has |
| 86 | # replaced elf.em's default definition, so we simply #define |
| 87 | # the current value of LDEMUL_FOO to vxworks_foo. |
| 88 | # |
| 89 | # (3) VXWORKS_BASE_EM_FILE set the hook's LDEMUL_FOO variable to |
| 90 | # something other than gld${EMULATION_NAME}_foo. We handle |
| 91 | # this case in the same way as (1). |
| 92 | for override in before_parse after_open; do |
| 93 | var="LDEMUL_`echo ${override} | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`" |
| 94 | eval value=\$${var} |
| 95 | if test "${value}" = "gld${EMULATION_NAME}_${override}"; then |
| 96 | fragment <<EOF |
| 97 | #define ${value} vxworks_${override} |
| 98 | EOF |
| 99 | else |
| 100 | eval $var=vxworks_${override} |
| 101 | fi |
| 102 | done |