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 ${EMULATION_NAME}
7 Copyright (C) 1991-2020 Free Software Foundation, Inc.
8 Written by Steve Chamberlain steve@cygnus.com
10 This file is part of the GNU Binutils.
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 3 of the License, or
15 (at your option) any later version.
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
22 You should have received a copy of the GNU General Public License
23 along with this program; if not, write to the Free Software
24 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
25 MA 02110-1301, USA. */
27 #define TARGET_IS_${EMULATION_NAME}
44 /* If TRUE, then interworking stubs which support calls to old,
45 non-interworking aware ARM code should be generated. */
47 static int support_old_code = 0;
48 static char * thumb_entry_symbol = NULL;
50 #define OPTION_SUPPORT_OLD_CODE 300
51 #define OPTION_THUMB_ENTRY 301
54 gld${EMULATION_NAME}_add_options
55 (int ns ATTRIBUTE_UNUSED, char **shortopts ATTRIBUTE_UNUSED, int nl,
56 struct option **longopts, int nrl ATTRIBUTE_UNUSED,
57 struct option **really_longopts ATTRIBUTE_UNUSED)
59 static const struct option xtra_long[] = {
60 {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE},
61 {"thumb-entry", required_argument, NULL, OPTION_THUMB_ENTRY},
62 {NULL, no_argument, NULL, 0}
65 *longopts = xrealloc (*longopts,
66 nl * sizeof (struct option) + sizeof (xtra_long));
67 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
71 gld${EMULATION_NAME}_list_options (FILE *file)
73 fprintf (file, _(" --support-old-code Support interworking with old code\n"));
74 fprintf (file, _(" --thumb-entry=<sym> Set the entry point to be Thumb symbol <sym>\n"));
78 gld${EMULATION_NAME}_handle_option (int optc)
85 case OPTION_SUPPORT_OLD_CODE:
89 case OPTION_THUMB_ENTRY:
90 thumb_entry_symbol = optarg;
98 gld${EMULATION_NAME}_before_parse (void)
100 #ifndef TARGET_ /* I.e., if not generic. */
101 ldfile_set_output_arch ("`echo ${ARCH}`", bfd_arch_unknown);
102 #endif /* not TARGET_ */
105 /* This is called after the sections have been attached to output
106 sections, but before any sizes or addresses have been set. */
109 gld${EMULATION_NAME}_before_allocation (void)
111 /* we should be able to set the size of the interworking stub section */
113 /* Here we rummage through the found bfds to collect glue information */
114 /* FIXME: should this be based on a command line option? krk@cygnus.com */
116 LANG_FOR_EACH_INPUT_STATEMENT (is)
118 if (! bfd_arm_process_before_allocation
119 (is->the_bfd, & link_info, support_old_code))
121 /* xgettext:c-format */
122 einfo (_("%P: errors encountered processing file %s\n"),
128 /* We have seen it all. Allocate it, and carry on */
129 bfd_arm_allocate_interworking_sections (& link_info);
131 before_allocation_default ();
135 gld${EMULATION_NAME}_after_open (void)
137 after_open_default ();
139 if (strstr (bfd_get_target (link_info.output_bfd), "arm") == NULL)
141 /* The arm backend needs special fields in the output hash structure.
142 These will only be created if the output format is an arm format,
143 hence we do not support linking and changing output formats at the
144 same time. Use a link followed by objcopy to change output formats. */
145 einfo (_("%F%P: error: cannot change output format "
146 "whilst linking %s binaries\n"), "ARM");
151 LANG_FOR_EACH_INPUT_STATEMENT (is)
153 if (bfd_arm_get_bfd_for_interworking (is->the_bfd, & link_info))
160 gld${EMULATION_NAME}_finish (void)
162 if (thumb_entry_symbol != NULL)
164 struct bfd_link_hash_entry * h;
166 h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol,
169 if (h != (struct bfd_link_hash_entry *) NULL
170 && (h->type == bfd_link_hash_defined
171 || h->type == bfd_link_hash_defweak)
172 && h->u.def.section->output_section != NULL)
174 static char buffer[32];
177 /* Special procesing is required for a Thumb entry symbol. The
178 bottom bit of its address must be set. */
179 val = (h->u.def.value
180 + bfd_section_vma (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 before_place_orphans_default,
267 after_allocation_default,
268 set_output_arch_default,
269 ldemul_default_target,
270 gld${EMULATION_NAME}_before_allocation,
271 gld${EMULATION_NAME}_get_script,
274 gld${EMULATION_NAME}_finish,
275 NULL, /* create output section statements */
276 NULL, /* open dynamic archive */
277 NULL, /* place orphan */
278 NULL, /* set symbols */
279 NULL, /* parse_args */
280 gld${EMULATION_NAME}_add_options,
281 gld${EMULATION_NAME}_handle_option,
282 NULL, /* unrecognised file */
283 gld${EMULATION_NAME}_list_options,
284 NULL, /* recognized file */
285 NULL, /* find_potential_libraries */
286 NULL, /* new_vers_pattern */
287 NULL, /* extra_map_file_text */
288 ${LDEMUL_EMIT_CTF_EARLY-NULL},
289 ${LDEMUL_EXAMINE_STRTAB_FOR_CTF-NULL},
290 ${LDEMUL_PRINT_SYMBOL-NULL}