1 # This shell script emits a C file. -*- C -*-
2 # It does some substitutions.
4 /* This file is is generated by a shell script. DO NOT EDIT! */
6 /* emulate the original gld for the given ${EMULATION_NAME}
7 Copyright (C) 1991-2016 Free Software Foundation, Inc.
8 Written by Steve Chamberlain steve@cygnus.com
10 This file is part of the GNU Binutils.
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 3 of the License, or
15 (at your option) any later version.
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
22 You should have received a copy of the GNU General Public License
23 along with this program; if not, write to the Free Software
24 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
25 MA 02110-1301, USA. */
27 #define TARGET_IS_${EMULATION_NAME}
43 /* If TRUE, then interworking stubs which support calls to old,
44 non-interworking aware ARM code should be generated. */
46 static int support_old_code = 0;
47 static char * thumb_entry_symbol = NULL;
49 #define OPTION_SUPPORT_OLD_CODE 300
50 #define OPTION_THUMB_ENTRY 301
53 gld${EMULATION_NAME}_add_options
54 (int ns ATTRIBUTE_UNUSED, char **shortopts ATTRIBUTE_UNUSED, int nl,
55 struct option **longopts, int nrl ATTRIBUTE_UNUSED,
56 struct option **really_longopts ATTRIBUTE_UNUSED)
58 static const struct option xtra_long[] = {
59 {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE},
60 {"thumb-entry", required_argument, NULL, OPTION_THUMB_ENTRY},
61 {NULL, no_argument, NULL, 0}
64 *longopts = xrealloc (*longopts,
65 nl * sizeof (struct option) + sizeof (xtra_long));
66 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
70 gld${EMULATION_NAME}_list_options (FILE *file)
72 fprintf (file, _(" --support-old-code Support interworking with old code\n"));
73 fprintf (file, _(" --thumb-entry=<sym> Set the entry point to be Thumb symbol <sym>\n"));
77 gld${EMULATION_NAME}_handle_option (int optc)
84 case OPTION_SUPPORT_OLD_CODE:
88 case OPTION_THUMB_ENTRY:
89 thumb_entry_symbol = optarg;
97 gld${EMULATION_NAME}_before_parse (void)
99 #ifndef TARGET_ /* I.e., if not generic. */
100 ldfile_set_output_arch ("`echo ${ARCH}`", bfd_arch_unknown);
101 #endif /* not TARGET_ */
104 /* This is called after the sections have been attached to output
105 sections, but before any sizes or addresses have been set. */
108 gld${EMULATION_NAME}_before_allocation (void)
110 /* we should be able to set the size of the interworking stub section */
112 /* Here we rummage through the found bfds to collect glue information */
113 /* FIXME: should this be based on a command line option? krk@cygnus.com */
115 LANG_FOR_EACH_INPUT_STATEMENT (is)
117 if (! bfd_arm_process_before_allocation
118 (is->the_bfd, & link_info, support_old_code))
120 /* xgettext:c-format */
121 einfo (_("Errors encountered processing file %s"), is->filename);
126 /* We have seen it all. Allocate it, and carry on */
127 bfd_arm_allocate_interworking_sections (& link_info);
129 before_allocation_default ();
133 gld${EMULATION_NAME}_after_open (void)
135 after_open_default ();
137 if (strstr (bfd_get_target (link_info.output_bfd), "arm") == NULL)
139 /* The arm backend needs special fields in the output hash structure.
140 These will only be created if the output format is an arm format,
141 hence we do not support linking and changing output formats at the
142 same time. Use a link followed by objcopy to change output formats. */
143 einfo ("%F%X%P: error: cannot change output format whilst linking ARM binaries\n");
148 LANG_FOR_EACH_INPUT_STATEMENT (is)
150 if (bfd_arm_get_bfd_for_interworking (is->the_bfd, & link_info))
157 gld${EMULATION_NAME}_finish (void)
159 if (thumb_entry_symbol != NULL)
161 struct bfd_link_hash_entry * h;
163 h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol,
166 if (h != (struct bfd_link_hash_entry *) NULL
167 && (h->type == bfd_link_hash_defined
168 || h->type == bfd_link_hash_defweak)
169 && h->u.def.section->output_section != NULL)
171 static char buffer[32];
174 /* Special procesing is required for a Thumb entry symbol. The
175 bottom bit of its address must be set. */
176 val = (h->u.def.value
177 + bfd_get_section_vma (link_info.output_bfd,
178 h->u.def.section->output_section)
179 + h->u.def.section->output_offset);
183 /* Now convert this value into a string and store it in entry_symbol
184 where the lang_finish() function will pick it up. */
188 sprintf_vma (buffer + 2, val);
190 if (entry_symbol.name != NULL && entry_from_cmdline)
191 einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"),
192 thumb_entry_symbol, entry_symbol.name);
193 entry_symbol.name = buffer;
196 einfo (_("%P: warning: cannot find thumb start symbol %s\n"),
204 gld${EMULATION_NAME}_get_script (int *isfile)
207 if test x"$COMPILE_IN" = xyes
209 # Scripts compiled in.
211 # sed commands to quote an ld script as a C string.
212 sc="-f stringify.sed"
218 if (bfd_link_relocatable (&link_info) && config.build_constructors)
221 sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
222 echo ' ; else if (bfd_link_relocatable (&link_info)) return' >> e${EMULATION_NAME}.c
223 sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
224 echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
225 sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
226 echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
227 sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
228 echo ' ; else return' >> e${EMULATION_NAME}.c
229 sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
230 echo '; }' >> e${EMULATION_NAME}.c
233 # Scripts read from the filesystem.
239 if (bfd_link_relocatable (&link_info) && config.build_constructors)
240 return "ldscripts/${EMULATION_NAME}.xu";
241 else if (bfd_link_relocatable (&link_info))
242 return "ldscripts/${EMULATION_NAME}.xr";
243 else if (!config.text_read_only)
244 return "ldscripts/${EMULATION_NAME}.xbn";
245 else if (!config.magic_demand_paged)
246 return "ldscripts/${EMULATION_NAME}.xn";
248 return "ldscripts/${EMULATION_NAME}.x";
256 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
258 gld${EMULATION_NAME}_before_parse,
262 gld${EMULATION_NAME}_after_open,
263 after_allocation_default,
264 set_output_arch_default,
265 ldemul_default_target,
266 gld${EMULATION_NAME}_before_allocation,
267 gld${EMULATION_NAME}_get_script,
270 gld${EMULATION_NAME}_finish,
271 NULL, /* create output section statements */
272 NULL, /* open dynamic archive */
273 NULL, /* place orphan */
274 NULL, /* set symbols */
275 NULL, /* parse_args */
276 gld${EMULATION_NAME}_add_options,
277 gld${EMULATION_NAME}_handle_option,
278 NULL, /* unrecognised file */
279 gld${EMULATION_NAME}_list_options,
280 NULL, /* recognized file */
281 NULL, /* find_potential_libraries */
282 NULL, /* new_vers_pattern */
283 NULL /* extra_map_file_text */