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 ${EMULATION_NAME}
7 Copyright (C) 1991-2019 Free Software Foundation, Inc.
8 Written by Steve Chamberlain steve@cygnus.com
10 This file is part of the GNU Binutils.
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 3 of the License, or
15 (at your option) any later version.
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
22 You should have received a copy of the GNU General Public License
23 along with this program; if not, write to the Free Software
24 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
25 MA 02110-1301, USA. */
27 #define TARGET_IS_${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 (_("%P: errors encountered processing file %s\n"),
127 /* We have seen it all. Allocate it, and carry on */
128 bfd_arm_allocate_interworking_sections (& link_info);
130 before_allocation_default ();
134 gld${EMULATION_NAME}_after_open (void)
136 after_open_default ();
138 if (strstr (bfd_get_target (link_info.output_bfd), "arm") == NULL)
140 /* The arm backend needs special fields in the output hash structure.
141 These will only be created if the output format is an arm format,
142 hence we do not support linking and changing output formats at the
143 same time. Use a link followed by objcopy to change output formats. */
144 einfo (_("%F%P: error: cannot change output format "
145 "whilst linking %s binaries\n"), "ARM");
150 LANG_FOR_EACH_INPUT_STATEMENT (is)
152 if (bfd_arm_get_bfd_for_interworking (is->the_bfd, & link_info))
159 gld${EMULATION_NAME}_finish (void)
161 if (thumb_entry_symbol != NULL)
163 struct bfd_link_hash_entry * h;
165 h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol,
168 if (h != (struct bfd_link_hash_entry *) NULL
169 && (h->type == bfd_link_hash_defined
170 || h->type == bfd_link_hash_defweak)
171 && h->u.def.section->output_section != NULL)
173 static char buffer[32];
176 /* Special procesing is required for a Thumb entry symbol. The
177 bottom bit of its address must be set. */
178 val = (h->u.def.value
179 + bfd_get_section_vma (link_info.output_bfd,
180 h->u.def.section->output_section)
181 + h->u.def.section->output_offset);
185 /* Now convert this value into a string and store it in entry_symbol
186 where the lang_finish() function will pick it up. */
190 sprintf_vma (buffer + 2, val);
192 if (entry_symbol.name != NULL && entry_from_cmdline)
193 einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"),
194 thumb_entry_symbol, entry_symbol.name);
195 entry_symbol.name = buffer;
198 einfo (_("%P: warning: cannot find thumb start symbol %s\n"),
206 gld${EMULATION_NAME}_get_script (int *isfile)
209 if test x"$COMPILE_IN" = xyes
211 # Scripts compiled in.
213 # sed commands to quote an ld script as a C string.
214 sc="-f stringify.sed"
220 if (bfd_link_relocatable (&link_info) && config.build_constructors)
223 sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
224 echo ' ; else if (bfd_link_relocatable (&link_info)) return' >> e${EMULATION_NAME}.c
225 sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
226 echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
227 sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
228 echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
229 sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
230 echo ' ; else return' >> e${EMULATION_NAME}.c
231 sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
232 echo '; }' >> e${EMULATION_NAME}.c
235 # Scripts read from the filesystem.
241 if (bfd_link_relocatable (&link_info) && config.build_constructors)
242 return "ldscripts/${EMULATION_NAME}.xu";
243 else if (bfd_link_relocatable (&link_info))
244 return "ldscripts/${EMULATION_NAME}.xr";
245 else if (!config.text_read_only)
246 return "ldscripts/${EMULATION_NAME}.xbn";
247 else if (!config.magic_demand_paged)
248 return "ldscripts/${EMULATION_NAME}.xn";
250 return "ldscripts/${EMULATION_NAME}.x";
258 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
260 gld${EMULATION_NAME}_before_parse,
264 gld${EMULATION_NAME}_after_open,
265 after_check_relocs_default,
266 after_allocation_default,
267 set_output_arch_default,
268 ldemul_default_target,
269 gld${EMULATION_NAME}_before_allocation,
270 gld${EMULATION_NAME}_get_script,
273 gld${EMULATION_NAME}_finish,
274 NULL, /* create output section statements */
275 NULL, /* open dynamic archive */
276 NULL, /* place orphan */
277 NULL, /* set symbols */
278 NULL, /* parse_args */
279 gld${EMULATION_NAME}_add_options,
280 gld${EMULATION_NAME}_handle_option,
281 NULL, /* unrecognised file */
282 gld${EMULATION_NAME}_list_options,
283 NULL, /* recognized file */
284 NULL, /* find_potential_libraries */
285 NULL, /* new_vers_pattern */
286 NULL /* extra_map_file_text */