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 ${EMULATION_NAME}
7 Copyright (C) 1991-2017 Free Software Foundation, Inc.
8 Written by Steve Chamberlain steve@cygnus.com
10 This file is part of the GNU Binutils.
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 3 of the License, or
15 (at your option) any later version.
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
22 You should have received a copy of the GNU General Public License
23 along with this program; if not, write to the Free Software
24 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
25 MA 02110-1301, USA. */
27 #define TARGET_IS_${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${EMULATION_NAME}_after_open (void)
135 after_open_default ();
137 if (strstr (bfd_get_target (link_info.output_bfd), "arm") == NULL)
139 /* The arm backend needs special fields in the output hash structure.
140 These will only be created if the output format is an arm format,
141 hence we do not support linking and changing output formats at the
142 same time. Use a link followed by objcopy to change output formats. */
143 einfo (_("%F%X%P: error: cannot change output format "
144 "whilst linking ARM binaries\n"));
149 LANG_FOR_EACH_INPUT_STATEMENT (is)
151 if (bfd_arm_get_bfd_for_interworking (is->the_bfd, & link_info))
158 gld${EMULATION_NAME}_finish (void)
160 if (thumb_entry_symbol != NULL)
162 struct bfd_link_hash_entry * h;
164 h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol,
167 if (h != (struct bfd_link_hash_entry *) NULL
168 && (h->type == bfd_link_hash_defined
169 || h->type == bfd_link_hash_defweak)
170 && h->u.def.section->output_section != NULL)
172 static char buffer[32];
175 /* Special procesing is required for a Thumb entry symbol. The
176 bottom bit of its address must be set. */
177 val = (h->u.def.value
178 + bfd_get_section_vma (link_info.output_bfd,
179 h->u.def.section->output_section)
180 + h->u.def.section->output_offset);
184 /* Now convert this value into a string and store it in entry_symbol
185 where the lang_finish() function will pick it up. */
189 sprintf_vma (buffer + 2, val);
191 if (entry_symbol.name != NULL && entry_from_cmdline)
192 einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"),
193 thumb_entry_symbol, entry_symbol.name);
194 entry_symbol.name = buffer;
197 einfo (_("%P: warning: cannot find thumb start symbol %s\n"),
205 gld${EMULATION_NAME}_get_script (int *isfile)
208 if test x"$COMPILE_IN" = xyes
210 # Scripts compiled in.
212 # sed commands to quote an ld script as a C string.
213 sc="-f stringify.sed"
219 if (bfd_link_relocatable (&link_info) && config.build_constructors)
222 sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
223 echo ' ; else if (bfd_link_relocatable (&link_info)) return' >> e${EMULATION_NAME}.c
224 sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
225 echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
226 sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
227 echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
228 sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
229 echo ' ; else return' >> e${EMULATION_NAME}.c
230 sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
231 echo '; }' >> e${EMULATION_NAME}.c
234 # Scripts read from the filesystem.
240 if (bfd_link_relocatable (&link_info) && config.build_constructors)
241 return "ldscripts/${EMULATION_NAME}.xu";
242 else if (bfd_link_relocatable (&link_info))
243 return "ldscripts/${EMULATION_NAME}.xr";
244 else if (!config.text_read_only)
245 return "ldscripts/${EMULATION_NAME}.xbn";
246 else if (!config.magic_demand_paged)
247 return "ldscripts/${EMULATION_NAME}.xn";
249 return "ldscripts/${EMULATION_NAME}.x";
257 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
259 gld${EMULATION_NAME}_before_parse,
263 gld${EMULATION_NAME}_after_open,
264 after_check_relocs_default,
265 after_allocation_default,
266 set_output_arch_default,
267 ldemul_default_target,
268 gld${EMULATION_NAME}_before_allocation,
269 gld${EMULATION_NAME}_get_script,
272 gld${EMULATION_NAME}_finish,
273 NULL, /* create output section statements */
274 NULL, /* open dynamic archive */
275 NULL, /* place orphan */
276 NULL, /* set symbols */
277 NULL, /* parse_args */
278 gld${EMULATION_NAME}_add_options,
279 gld${EMULATION_NAME}_handle_option,
280 NULL, /* unrecognised file */
281 gld${EMULATION_NAME}_list_options,
282 NULL, /* recognized file */
283 NULL, /* find_potential_libraries */
284 NULL, /* new_vers_pattern */
285 NULL /* extra_map_file_text */