Commit | Line | Data |
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252b5132 RH |
1 | # This shell script emits a C file. -*- C -*- |
2 | # It does some substitutions. | |
92b93329 | 3 | fragment <<EOF |
252b5132 RH |
4 | /* This file is is generated by a shell script. DO NOT EDIT! */ |
5 | ||
6 | /* emulate the original gld for the given ${EMULATION_NAME} | |
82704155 | 7 | Copyright (C) 1991-2019 Free Software Foundation, Inc. |
252b5132 RH |
8 | Written by Steve Chamberlain steve@cygnus.com |
9 | ||
f96b4a7b NC |
10 | This file is part of the GNU Binutils. |
11 | ||
12 | This program is free software; you can redistribute it and/or modify | |
13 | it under the terms of the GNU General Public License as published by | |
14 | the Free Software Foundation; either version 3 of the License, or | |
15 | (at your option) any later version. | |
16 | ||
17 | This program is distributed in the hope that it will be useful, | |
18 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | GNU General Public License for more details. | |
21 | ||
22 | You should have received a copy of the GNU General Public License | |
23 | along with this program; if not, write to the Free Software | |
24 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
25 | MA 02110-1301, USA. */ | |
252b5132 RH |
26 | |
27 | #define TARGET_IS_${EMULATION_NAME} | |
28 | ||
252b5132 | 29 | #include "sysdep.h" |
3db64b00 | 30 | #include "bfd.h" |
252b5132 | 31 | #include "bfdlink.h" |
1ff6de03 | 32 | #include "ctf-api.h" |
252b5132 RH |
33 | #include "getopt.h" |
34 | ||
35 | #include "ld.h" | |
36 | #include "ldmain.h" | |
252b5132 RH |
37 | #include "ldmisc.h" |
38 | ||
39 | #include "ldexp.h" | |
40 | #include "ldlang.h" | |
b71e2778 AM |
41 | #include "ldfile.h" |
42 | #include "ldemul.h" | |
252b5132 | 43 | |
0c7a8e5a AM |
44 | /* If TRUE, then interworking stubs which support calls to old, |
45 | non-interworking aware ARM code should be generated. */ | |
252b5132 RH |
46 | |
47 | static int support_old_code = 0; | |
6f798e5c | 48 | static char * thumb_entry_symbol = NULL; |
252b5132 RH |
49 | |
50 | #define OPTION_SUPPORT_OLD_CODE 300 | |
6f798e5c | 51 | #define OPTION_THUMB_ENTRY 301 |
252b5132 | 52 | |
3bcf5557 | 53 | static void |
0c7a8e5a AM |
54 | gld${EMULATION_NAME}_add_options |
55 | (int ns ATTRIBUTE_UNUSED, char **shortopts ATTRIBUTE_UNUSED, int nl, | |
56 | struct option **longopts, int nrl ATTRIBUTE_UNUSED, | |
57 | struct option **really_longopts ATTRIBUTE_UNUSED) | |
252b5132 | 58 | { |
3bcf5557 AM |
59 | static const struct option xtra_long[] = { |
60 | {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE}, | |
61 | {"thumb-entry", required_argument, NULL, OPTION_THUMB_ENTRY}, | |
62 | {NULL, no_argument, NULL, 0} | |
63 | }; | |
64 | ||
0c7a8e5a AM |
65 | *longopts = xrealloc (*longopts, |
66 | nl * sizeof (struct option) + sizeof (xtra_long)); | |
3bcf5557 AM |
67 | memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long)); |
68 | } | |
252b5132 RH |
69 | |
70 | static void | |
0c7a8e5a | 71 | gld${EMULATION_NAME}_list_options (FILE *file) |
252b5132 | 72 | { |
442996ee AM |
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")); | |
252b5132 RH |
75 | } |
76 | ||
3bcf5557 | 77 | static bfd_boolean |
0c7a8e5a | 78 | gld${EMULATION_NAME}_handle_option (int optc) |
252b5132 | 79 | { |
252b5132 RH |
80 | switch (optc) |
81 | { | |
82 | default: | |
3bcf5557 | 83 | return FALSE; |
252b5132 RH |
84 | |
85 | case OPTION_SUPPORT_OLD_CODE: | |
86 | support_old_code = 1; | |
87 | break; | |
6f798e5c NC |
88 | |
89 | case OPTION_THUMB_ENTRY: | |
90 | thumb_entry_symbol = optarg; | |
91 | break; | |
252b5132 | 92 | } |
0c7a8e5a | 93 | |
3bcf5557 | 94 | return TRUE; |
252b5132 RH |
95 | } |
96 | \f | |
97 | static void | |
0c7a8e5a | 98 | gld${EMULATION_NAME}_before_parse (void) |
252b5132 RH |
99 | { |
100 | #ifndef TARGET_ /* I.e., if not generic. */ | |
5e2f1575 | 101 | ldfile_set_output_arch ("`echo ${ARCH}`", bfd_arch_unknown); |
252b5132 RH |
102 | #endif /* not TARGET_ */ |
103 | } | |
104 | ||
105 | /* This is called after the sections have been attached to output | |
106 | sections, but before any sizes or addresses have been set. */ | |
107 | ||
108 | static void | |
0c7a8e5a | 109 | gld${EMULATION_NAME}_before_allocation (void) |
252b5132 RH |
110 | { |
111 | /* we should be able to set the size of the interworking stub section */ | |
112 | ||
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 */ | |
115 | { | |
116 | LANG_FOR_EACH_INPUT_STATEMENT (is) | |
117 | { | |
118 | if (! bfd_arm_process_before_allocation | |
119 | (is->the_bfd, & link_info, support_old_code)) | |
120 | { | |
121 | /* xgettext:c-format */ | |
df5f2391 AM |
122 | einfo (_("%P: errors encountered processing file %s\n"), |
123 | is->filename); | |
252b5132 RH |
124 | } |
125 | } | |
126 | } | |
127 | ||
128 | /* We have seen it all. Allocate it, and carry on */ | |
129 | bfd_arm_allocate_interworking_sections (& link_info); | |
8423293d | 130 | |
1e035701 | 131 | before_allocation_default (); |
252b5132 RH |
132 | } |
133 | ||
134 | static void | |
0c7a8e5a | 135 | gld${EMULATION_NAME}_after_open (void) |
252b5132 | 136 | { |
5c3049d2 AM |
137 | after_open_default (); |
138 | ||
f13a99db | 139 | if (strstr (bfd_get_target (link_info.output_bfd), "arm") == NULL) |
252b5132 | 140 | { |
f11523b0 NC |
141 | /* The arm backend needs special fields in the output hash structure. |
142 | These will only be created if the output format is an arm format, | |
143 | hence we do not support linking and changing output formats at the | |
144 | same time. Use a link followed by objcopy to change output formats. */ | |
df5f2391 AM |
145 | einfo (_("%F%P: error: cannot change output format " |
146 | "whilst linking %s binaries\n"), "ARM"); | |
f11523b0 | 147 | return; |
252b5132 | 148 | } |
0c7a8e5a | 149 | |
f11523b0 NC |
150 | { |
151 | LANG_FOR_EACH_INPUT_STATEMENT (is) | |
152 | { | |
153 | if (bfd_arm_get_bfd_for_interworking (is->the_bfd, & link_info)) | |
154 | break; | |
155 | } | |
156 | } | |
252b5132 RH |
157 | } |
158 | ||
6f798e5c | 159 | static void |
0c7a8e5a | 160 | gld${EMULATION_NAME}_finish (void) |
6f798e5c | 161 | { |
74541ad4 | 162 | if (thumb_entry_symbol != NULL) |
6f798e5c | 163 | { |
74541ad4 AM |
164 | struct bfd_link_hash_entry * h; |
165 | ||
166 | h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol, | |
167 | FALSE, FALSE, TRUE); | |
168 | ||
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) | |
173 | { | |
174 | static char buffer[32]; | |
175 | bfd_vma val; | |
176 | ||
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 | |
fd361982 | 180 | + bfd_section_vma (h->u.def.section->output_section) |
74541ad4 AM |
181 | + h->u.def.section->output_offset); |
182 | ||
183 | val |= 1; | |
184 | ||
185 | /* Now convert this value into a string and store it in entry_symbol | |
186 | where the lang_finish() function will pick it up. */ | |
187 | buffer[0] = '0'; | |
188 | buffer[1] = 'x'; | |
189 | ||
190 | sprintf_vma (buffer + 2, val); | |
191 | ||
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; | |
196 | } | |
197 | else | |
c58dea77 | 198 | einfo (_("%P: warning: cannot find thumb start symbol %s\n"), |
74541ad4 | 199 | thumb_entry_symbol); |
6f798e5c | 200 | } |
1e035701 AM |
201 | |
202 | finish_default (); | |
6f798e5c NC |
203 | } |
204 | ||
252b5132 | 205 | static char * |
0c7a8e5a | 206 | gld${EMULATION_NAME}_get_script (int *isfile) |
252b5132 RH |
207 | EOF |
208 | ||
7225345d | 209 | if test x"$COMPILE_IN" = xyes |
252b5132 RH |
210 | then |
211 | # Scripts compiled in. | |
212 | ||
213 | # sed commands to quote an ld script as a C string. | |
597e2591 | 214 | sc="-f stringify.sed" |
252b5132 | 215 | |
92b93329 | 216 | fragment <<EOF |
0c7a8e5a | 217 | { |
252b5132 RH |
218 | *isfile = 0; |
219 | ||
0e1862bb | 220 | if (bfd_link_relocatable (&link_info) && config.build_constructors) |
252b5132 RH |
221 | return |
222 | EOF | |
b34976b6 | 223 | sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c |
0e1862bb | 224 | echo ' ; else if (bfd_link_relocatable (&link_info)) return' >> e${EMULATION_NAME}.c |
b34976b6 AM |
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 | |
252b5132 RH |
233 | |
234 | else | |
235 | # Scripts read from the filesystem. | |
236 | ||
92b93329 | 237 | fragment <<EOF |
0c7a8e5a | 238 | { |
252b5132 RH |
239 | *isfile = 1; |
240 | ||
0e1862bb | 241 | if (bfd_link_relocatable (&link_info) && config.build_constructors) |
252b5132 | 242 | return "ldscripts/${EMULATION_NAME}.xu"; |
0e1862bb | 243 | else if (bfd_link_relocatable (&link_info)) |
252b5132 RH |
244 | return "ldscripts/${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"; | |
249 | else | |
250 | return "ldscripts/${EMULATION_NAME}.x"; | |
251 | } | |
252 | EOF | |
253 | ||
254 | fi | |
255 | ||
92b93329 | 256 | fragment <<EOF |
252b5132 | 257 | |
0c7a8e5a | 258 | struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation = |
252b5132 RH |
259 | { |
260 | gld${EMULATION_NAME}_before_parse, | |
261 | syslib_default, | |
262 | hll_default, | |
263 | after_parse_default, | |
264 | gld${EMULATION_NAME}_after_open, | |
5c3261b0 | 265 | after_check_relocs_default, |
252b5132 RH |
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, | |
271 | "${EMULATION_NAME}", | |
272 | "${OUTPUT_FORMAT}", | |
e1c47aa4 AM |
273 | gld${EMULATION_NAME}_finish, |
274 | NULL, /* create output section statements */ | |
275 | NULL, /* open dynamic archive */ | |
276 | NULL, /* place orphan */ | |
277 | NULL, /* set symbols */ | |
3bcf5557 AM |
278 | NULL, /* parse_args */ |
279 | gld${EMULATION_NAME}_add_options, | |
280 | gld${EMULATION_NAME}_handle_option, | |
e1c47aa4 AM |
281 | NULL, /* unrecognised file */ |
282 | gld${EMULATION_NAME}_list_options, | |
40d109bf | 283 | NULL, /* recognized file */ |
fac1652d | 284 | NULL, /* find_potential_libraries */ |
7a2f2d82 | 285 | NULL, /* new_vers_pattern */ |
1ff6de03 NA |
286 | NULL, /* extra_map_file_text */ |
287 | ${LDEMUL_EMIT_CTF_EARLY-NULL}, | |
288 | ${LDEMUL_EXAMINE_STRTAB_FOR_CTF-NULL} | |
252b5132 RH |
289 | }; |
290 | EOF |