Commit | Line | Data |
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d92aadfd | 1 | /* nlmconv.c -- NLM conversion program |
1d1a5a53 | 2 | Copyright (C) 1993, 94, 95, 96, 1997 Free Software Foundation, Inc. |
d92aadfd ILT |
3 | |
4 | This file is part of GNU Binutils. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
1d1a5a53 | 18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
d92aadfd ILT |
19 | |
20 | /* Written by Ian Lance Taylor <ian@cygnus.com>. | |
21 | ||
22 | This program can be used to convert any appropriate object file | |
23 | into a NetWare Loadable Module (an NLM). It will accept a linker | |
24 | specification file which is identical to that accepted by the | |
1d1a5a53 ILT |
25 | NetWare linker, NLMLINK. */ |
26 | ||
27 | /* AIX requires this to be the first thing in the file. */ | |
28 | #ifndef __GNUC__ | |
29 | # ifdef _AIX | |
30 | #pragma alloca | |
31 | #endif | |
32 | #endif | |
33 | ||
34 | #include "bfd.h" | |
35 | #include "libiberty.h" | |
36 | #include "bucomm.h" | |
d92aadfd ILT |
37 | |
38 | #include <ansidecl.h> | |
ef5b5368 | 39 | #include <time.h> |
90d8edfd | 40 | #include <ctype.h> |
d92aadfd | 41 | #include <sys/stat.h> |
0f6df2ee | 42 | #include <sys/file.h> |
d92aadfd ILT |
43 | #include <assert.h> |
44 | #include <getopt.h> | |
1d1a5a53 | 45 | |
d92aadfd ILT |
46 | /* Internal BFD NLM header. */ |
47 | #include "libnlm.h" | |
48 | #include "nlmconv.h" | |
49 | ||
9d11577a | 50 | #ifdef NLMCONV_ALPHA |
419093bc ILT |
51 | #include "coff/sym.h" |
52 | #include "coff/ecoff.h" | |
9d11577a | 53 | #endif |
419093bc | 54 | |
d92aadfd ILT |
55 | /* If strerror is just a macro, we want to use the one from libiberty |
56 | since it will handle undefined values. */ | |
57 | #undef strerror | |
58 | extern char *strerror (); | |
ef5b5368 ILT |
59 | |
60 | #ifndef localtime | |
61 | extern struct tm *localtime (); | |
62 | #endif | |
63 | ||
64 | #ifndef SEEK_SET | |
65 | #define SEEK_SET 0 | |
66 | #endif | |
0f6df2ee ILT |
67 | |
68 | #ifndef R_OK | |
69 | #define R_OK 4 | |
70 | #define W_OK 2 | |
71 | #define X_OK 1 | |
72 | #endif | |
d92aadfd ILT |
73 | \f |
74 | /* Global variables. */ | |
75 | ||
76 | /* The name used to invoke the program. */ | |
77 | char *program_name; | |
78 | ||
ef5b5368 ILT |
79 | /* Local variables. */ |
80 | ||
0f6df2ee ILT |
81 | /* Whether to print out debugging information (currently just controls |
82 | whether it prints the linker command if there is one). */ | |
83 | static int debug; | |
84 | ||
ef5b5368 | 85 | /* The symbol table. */ |
d92aadfd ILT |
86 | static asymbol **symbols; |
87 | ||
dcb210cb ILT |
88 | /* A section we create in the output file to hold pointers to where |
89 | the sections of the input file end up. We will put a pointer to | |
90 | this section in the NLM header. These is an entry for each input | |
91 | section. The format is | |
92 | null terminated section name | |
93 | zeroes to adjust to 4 byte boundary | |
94 | 4 byte section data file pointer | |
95 | 4 byte section size | |
96 | We don't need a version number. The way we find this information | |
97 | is by finding a stamp in the NLM header information. If we need to | |
98 | change the format of this information, we can simply change the | |
99 | stamp. */ | |
100 | static asection *secsec; | |
101 | ||
0f6df2ee ILT |
102 | /* A temporary file name to be unlinked on exit. Actually, for most |
103 | errors, we leave it around. It's not clear whether that is helpful | |
104 | or not. */ | |
105 | static char *unlink_on_exit; | |
106 | ||
d92aadfd ILT |
107 | /* The list of long options. */ |
108 | static struct option long_options[] = | |
109 | { | |
0f6df2ee | 110 | { "debug", no_argument, 0, 'd' }, |
419093bc | 111 | { "header-file", required_argument, 0, 'T' }, |
ef5b5368 | 112 | { "help", no_argument, 0, 'h' }, |
e70f2bde ILT |
113 | { "input-target", required_argument, 0, 'I' }, |
114 | { "input-format", required_argument, 0, 'I' }, /* Obsolete */ | |
0f6df2ee | 115 | { "linker", required_argument, 0, 'l' }, |
e70f2bde ILT |
116 | { "output-target", required_argument, 0, 'O' }, |
117 | { "output-format", required_argument, 0, 'O' }, /* Obsolete */ | |
ef5b5368 | 118 | { "version", no_argument, 0, 'V' }, |
d92aadfd ILT |
119 | { NULL, no_argument, 0, 0 } |
120 | }; | |
121 | ||
122 | /* Local routines. */ | |
123 | ||
124 | static void show_help PARAMS ((void)); | |
125 | static void show_usage PARAMS ((FILE *, int)); | |
126 | static const char *select_output_format PARAMS ((enum bfd_architecture, | |
419093bc | 127 | unsigned long, boolean)); |
d92aadfd ILT |
128 | static void setup_sections PARAMS ((bfd *, asection *, PTR)); |
129 | static void copy_sections PARAMS ((bfd *, asection *, PTR)); | |
419093bc | 130 | static void mangle_relocs PARAMS ((bfd *, asection *, arelent ***, |
ae5d2ff5 | 131 | long *, char *, |
d92aadfd | 132 | bfd_size_type)); |
9d11577a ILT |
133 | static void default_mangle_relocs PARAMS ((bfd *, asection *, arelent ***, |
134 | long *, char *, | |
135 | bfd_size_type)); | |
136 | static char *link_inputs PARAMS ((struct string_list *, char *)); | |
9d11577a ILT |
137 | |
138 | #ifdef NLMCONV_I386 | |
419093bc | 139 | static void i386_mangle_relocs PARAMS ((bfd *, asection *, arelent ***, |
ae5d2ff5 | 140 | long *, char *, |
a30f59a4 | 141 | bfd_size_type)); |
9d11577a ILT |
142 | #endif |
143 | ||
144 | #ifdef NLMCONV_ALPHA | |
419093bc | 145 | static void alpha_mangle_relocs PARAMS ((bfd *, asection *, arelent ***, |
ae5d2ff5 | 146 | long *, char *, |
419093bc | 147 | bfd_size_type)); |
9d11577a ILT |
148 | #endif |
149 | ||
150 | #ifdef NLMCONV_POWERPC | |
c59fa195 | 151 | static void powerpc_build_stubs PARAMS ((bfd *, bfd *, asymbol ***, long *)); |
4bd7a65f ILT |
152 | static void powerpc_resolve_stubs PARAMS ((bfd *, bfd *)); |
153 | static void powerpc_mangle_relocs PARAMS ((bfd *, asection *, arelent ***, | |
ae5d2ff5 | 154 | long *, char *, |
4bd7a65f | 155 | bfd_size_type)); |
9d11577a | 156 | #endif |
d92aadfd ILT |
157 | \f |
158 | /* The main routine. */ | |
159 | ||
160 | int | |
161 | main (argc, argv) | |
162 | int argc; | |
163 | char **argv; | |
164 | { | |
165 | int opt; | |
0f6df2ee | 166 | char *input_file = NULL; |
d92aadfd ILT |
167 | const char *input_format = NULL; |
168 | const char *output_format = NULL; | |
169 | const char *header_file = NULL; | |
0f6df2ee ILT |
170 | char *ld_arg = NULL; |
171 | Nlm_Internal_Fixed_Header fixed_hdr_struct; | |
172 | Nlm_Internal_Variable_Header var_hdr_struct; | |
173 | Nlm_Internal_Version_Header version_hdr_struct; | |
174 | Nlm_Internal_Copyright_Header copyright_hdr_struct; | |
175 | Nlm_Internal_Extended_Header extended_hdr_struct; | |
d92aadfd ILT |
176 | bfd *inbfd; |
177 | bfd *outbfd; | |
ef5b5368 | 178 | asymbol **newsyms, **outsyms; |
ae5d2ff5 ILT |
179 | long symcount, newsymalloc, newsymcount; |
180 | long symsize; | |
4bd7a65f | 181 | asection *text_sec, *bss_sec, *data_sec; |
90d8edfd ILT |
182 | bfd_vma vma; |
183 | bfd_size_type align; | |
ef5b5368 | 184 | asymbol *endsym; |
ae5d2ff5 | 185 | long i; |
d92aadfd ILT |
186 | char inlead, outlead; |
187 | boolean gotstart, gotexit, gotcheck; | |
188 | struct stat st; | |
ef5b5368 | 189 | FILE *custom_data, *help_data, *message_data, *rpc_data, *shared_data; |
419093bc | 190 | size_t custom_size, help_size, message_size, module_size, rpc_size; |
d92aadfd | 191 | asection *custom_section, *help_section, *message_section, *module_section; |
ef5b5368 ILT |
192 | asection *rpc_section, *shared_section; |
193 | bfd *sharedbfd; | |
419093bc | 194 | size_t shared_offset, shared_size; |
ef5b5368 | 195 | Nlm_Internal_Fixed_Header sharedhdr; |
d92aadfd | 196 | int len; |
90d8edfd | 197 | char *modname; |
cef35d48 | 198 | char **matching; |
d92aadfd ILT |
199 | |
200 | program_name = argv[0]; | |
7681bc7b | 201 | xmalloc_set_program_name (program_name); |
d92aadfd ILT |
202 | |
203 | bfd_init (); | |
1d1a5a53 | 204 | set_default_bfd_target (); |
d92aadfd | 205 | |
0f6df2ee ILT |
206 | while ((opt = getopt_long (argc, argv, "dhI:l:O:T:V", long_options, |
207 | (int *) NULL)) | |
d92aadfd ILT |
208 | != EOF) |
209 | { | |
210 | switch (opt) | |
211 | { | |
0f6df2ee ILT |
212 | case 'd': |
213 | debug = 1; | |
214 | break; | |
ef5b5368 | 215 | case 'h': |
d92aadfd ILT |
216 | show_help (); |
217 | /*NOTREACHED*/ | |
218 | case 'I': | |
219 | input_format = optarg; | |
220 | break; | |
0f6df2ee ILT |
221 | case 'l': |
222 | ld_arg = optarg; | |
223 | break; | |
d92aadfd ILT |
224 | case 'O': |
225 | output_format = optarg; | |
226 | break; | |
227 | case 'T': | |
228 | header_file = optarg; | |
229 | break; | |
ef5b5368 | 230 | case 'V': |
1d1a5a53 | 231 | print_version ("nlmconv"); |
d92aadfd ILT |
232 | /*NOTREACHED*/ |
233 | case 0: | |
234 | break; | |
235 | default: | |
236 | show_usage (stderr, 1); | |
237 | /*NOTREACHED*/ | |
238 | } | |
239 | } | |
240 | ||
0f6df2ee ILT |
241 | /* The input and output files may be named on the command line. */ |
242 | output_file = NULL; | |
243 | if (optind < argc) | |
d92aadfd | 244 | { |
0f6df2ee ILT |
245 | input_file = argv[optind]; |
246 | ++optind; | |
247 | if (optind < argc) | |
248 | { | |
249 | output_file = argv[optind]; | |
250 | ++optind; | |
251 | if (optind < argc) | |
252 | show_usage (stderr, 1); | |
253 | if (strcmp (input_file, output_file) == 0) | |
254 | { | |
255 | fprintf (stderr, | |
256 | "%s: input and output files must be different\n", | |
257 | program_name); | |
258 | exit (1); | |
259 | } | |
260 | } | |
d92aadfd ILT |
261 | } |
262 | ||
d92aadfd | 263 | /* Initialize the header information to default values. */ |
0f6df2ee ILT |
264 | fixed_hdr = &fixed_hdr_struct; |
265 | memset ((PTR) &fixed_hdr_struct, 0, sizeof fixed_hdr_struct); | |
266 | var_hdr = &var_hdr_struct; | |
267 | memset ((PTR) &var_hdr_struct, 0, sizeof var_hdr_struct); | |
268 | version_hdr = &version_hdr_struct; | |
269 | memset ((PTR) &version_hdr_struct, 0, sizeof version_hdr_struct); | |
270 | copyright_hdr = ©right_hdr_struct; | |
271 | memset ((PTR) ©right_hdr_struct, 0, sizeof copyright_hdr_struct); | |
272 | extended_hdr = &extended_hdr_struct; | |
273 | memset ((PTR) &extended_hdr_struct, 0, sizeof extended_hdr_struct); | |
d92aadfd ILT |
274 | check_procedure = NULL; |
275 | custom_file = NULL; | |
276 | debug_info = false; | |
277 | exit_procedure = "_Stop"; | |
278 | export_symbols = NULL; | |
279 | map_file = NULL; | |
280 | full_map = false; | |
281 | help_file = NULL; | |
282 | import_symbols = NULL; | |
283 | message_file = NULL; | |
284 | modules = NULL; | |
285 | sharelib_file = NULL; | |
286 | start_procedure = "_Prelude"; | |
287 | verbose = false; | |
288 | rpc_file = NULL; | |
289 | ||
290 | parse_errors = 0; | |
291 | ||
292 | /* Parse the header file (if there is one). */ | |
293 | if (header_file != NULL) | |
294 | { | |
295 | if (! nlmlex_file (header_file) | |
296 | || yyparse () != 0 | |
297 | || parse_errors != 0) | |
298 | exit (1); | |
299 | } | |
300 | ||
0f6df2ee ILT |
301 | if (input_files != NULL) |
302 | { | |
303 | if (input_file != NULL) | |
304 | { | |
305 | fprintf (stderr, | |
306 | "%s: input file named both on command line and with INPUT\n", | |
307 | program_name); | |
308 | exit (1); | |
309 | } | |
310 | if (input_files->next == NULL) | |
311 | input_file = input_files->string; | |
312 | else | |
313 | input_file = link_inputs (input_files, ld_arg); | |
314 | } | |
315 | else if (input_file == NULL) | |
316 | { | |
317 | fprintf (stderr, "%s: no input file\n", program_name); | |
318 | show_usage (stderr, 1); | |
319 | } | |
320 | ||
321 | inbfd = bfd_openr (input_file, input_format); | |
322 | if (inbfd == NULL) | |
323 | bfd_fatal (input_file); | |
324 | ||
cef35d48 DM |
325 | if (! bfd_check_format_matches (inbfd, bfd_object, &matching)) |
326 | { | |
327 | bfd_nonfatal (input_file); | |
7681bc7b | 328 | if (bfd_get_error () == bfd_error_file_ambiguously_recognized) |
cef35d48 DM |
329 | { |
330 | list_matching_formats (matching); | |
331 | free (matching); | |
332 | } | |
333 | exit (1); | |
334 | } | |
0f6df2ee ILT |
335 | |
336 | if (output_format == NULL) | |
337 | output_format = select_output_format (bfd_get_arch (inbfd), | |
338 | bfd_get_mach (inbfd), | |
1d1a5a53 | 339 | bfd_big_endian (inbfd)); |
0f6df2ee ILT |
340 | |
341 | assert (output_format != NULL); | |
342 | ||
343 | /* Use the output file named on the command line if it exists. | |
344 | Otherwise use the file named in the OUTPUT statement. */ | |
345 | if (output_file == NULL) | |
346 | { | |
347 | fprintf (stderr, "%s: no name for output file\n", | |
348 | program_name); | |
349 | show_usage (stderr, 1); | |
350 | } | |
351 | ||
352 | outbfd = bfd_openw (output_file, output_format); | |
353 | if (outbfd == NULL) | |
354 | bfd_fatal (output_file); | |
355 | if (! bfd_set_format (outbfd, bfd_object)) | |
356 | bfd_fatal (output_file); | |
357 | ||
0c5dc23c | 358 | assert (bfd_get_flavour (outbfd) == bfd_target_nlm_flavour); |
0f6df2ee ILT |
359 | |
360 | if (bfd_arch_get_compatible (inbfd, outbfd) == NULL) | |
361 | fprintf (stderr, | |
362 | "%s: warning:input and output formats are not compatible\n", | |
363 | program_name); | |
364 | ||
365 | /* Move the values read from the command file into outbfd. */ | |
366 | *nlm_fixed_header (outbfd) = fixed_hdr_struct; | |
367 | *nlm_variable_header (outbfd) = var_hdr_struct; | |
368 | *nlm_version_header (outbfd) = version_hdr_struct; | |
369 | *nlm_copyright_header (outbfd) = copyright_hdr_struct; | |
370 | *nlm_extended_header (outbfd) = extended_hdr_struct; | |
371 | ||
d92aadfd ILT |
372 | /* Start copying the input BFD to the output BFD. */ |
373 | if (! bfd_set_file_flags (outbfd, bfd_get_file_flags (inbfd))) | |
374 | bfd_fatal (bfd_get_filename (outbfd)); | |
375 | ||
ae5d2ff5 ILT |
376 | symsize = bfd_get_symtab_upper_bound (inbfd); |
377 | if (symsize < 0) | |
378 | bfd_fatal (input_file); | |
379 | symbols = (asymbol **) xmalloc (symsize); | |
d92aadfd | 380 | symcount = bfd_canonicalize_symtab (inbfd, symbols); |
ae5d2ff5 ILT |
381 | if (symcount < 0) |
382 | bfd_fatal (input_file); | |
d92aadfd | 383 | |
90d8edfd | 384 | /* Make sure we have a .bss section. */ |
ef5b5368 ILT |
385 | bss_sec = bfd_get_section_by_name (outbfd, NLM_UNINITIALIZED_DATA_NAME); |
386 | if (bss_sec == NULL) | |
387 | { | |
388 | bss_sec = bfd_make_section (outbfd, NLM_UNINITIALIZED_DATA_NAME); | |
90d8edfd ILT |
389 | if (bss_sec == NULL |
390 | || ! bfd_set_section_flags (outbfd, bss_sec, SEC_ALLOC) | |
391 | || ! bfd_set_section_alignment (outbfd, bss_sec, 1)) | |
ef5b5368 | 392 | bfd_fatal ("make .bss section"); |
ef5b5368 | 393 | } |
dcb210cb ILT |
394 | |
395 | /* We store the original section names in the .nlmsections section, | |
396 | so that programs which understand it can resurrect the original | |
397 | sections from the NLM. We will put a pointer to .nlmsections in | |
398 | the NLM header area. */ | |
399 | secsec = bfd_make_section (outbfd, ".nlmsections"); | |
400 | if (secsec == NULL) | |
401 | bfd_fatal ("make .nlmsections section"); | |
402 | if (! bfd_set_section_flags (outbfd, secsec, SEC_HAS_CONTENTS)) | |
403 | bfd_fatal ("set .nlmsections flags"); | |
4bd7a65f | 404 | |
9d11577a | 405 | #ifdef NLMCONV_POWERPC |
4bd7a65f ILT |
406 | /* For PowerPC NetWare we need to build stubs for calls to undefined |
407 | symbols. Because each stub requires an entry in the TOC section | |
408 | which must be at the same location as other entries in the TOC | |
409 | section, we must do this before determining where the TOC section | |
410 | goes in setup_sections. */ | |
03975925 | 411 | if (bfd_get_arch (inbfd) == bfd_arch_powerpc) |
c59fa195 | 412 | powerpc_build_stubs (inbfd, outbfd, &symbols, &symcount); |
9d11577a | 413 | #endif |
ef5b5368 ILT |
414 | |
415 | /* Set up the sections. */ | |
416 | bfd_map_over_sections (inbfd, setup_sections, (PTR) outbfd); | |
417 | ||
4bd7a65f ILT |
418 | text_sec = bfd_get_section_by_name (outbfd, NLM_CODE_NAME); |
419 | ||
90d8edfd ILT |
420 | /* The .bss section immediately follows the .data section. */ |
421 | data_sec = bfd_get_section_by_name (outbfd, NLM_INITIALIZED_DATA_NAME); | |
422 | if (data_sec != NULL) | |
423 | { | |
424 | bfd_size_type add; | |
425 | ||
426 | vma = bfd_get_section_size_before_reloc (data_sec); | |
427 | align = 1 << bss_sec->alignment_power; | |
428 | add = ((vma + align - 1) &~ (align - 1)) - vma; | |
429 | vma += add; | |
430 | if (! bfd_set_section_vma (outbfd, bss_sec, vma)) | |
431 | bfd_fatal ("set .bss vma"); | |
432 | if (add != 0) | |
433 | { | |
434 | bfd_size_type data_size; | |
435 | ||
436 | data_size = bfd_get_section_size_before_reloc (data_sec); | |
437 | if (! bfd_set_section_size (outbfd, data_sec, data_size + add)) | |
438 | bfd_fatal ("set .data size"); | |
439 | } | |
440 | } | |
441 | ||
d92aadfd ILT |
442 | /* Adjust symbol information. */ |
443 | inlead = bfd_get_symbol_leading_char (inbfd); | |
444 | outlead = bfd_get_symbol_leading_char (outbfd); | |
445 | gotstart = false; | |
446 | gotexit = false; | |
447 | gotcheck = false; | |
ef5b5368 ILT |
448 | newsymalloc = 10; |
449 | newsyms = (asymbol **) xmalloc (newsymalloc * sizeof (asymbol *)); | |
450 | newsymcount = 0; | |
451 | endsym = NULL; | |
d92aadfd ILT |
452 | for (i = 0; i < symcount; i++) |
453 | { | |
454 | register asymbol *sym; | |
455 | ||
456 | sym = symbols[i]; | |
457 | ||
458 | /* Add or remove a leading underscore. */ | |
459 | if (inlead != outlead) | |
460 | { | |
461 | if (inlead != '\0') | |
462 | { | |
463 | if (bfd_asymbol_name (sym)[0] == inlead) | |
464 | { | |
465 | if (outlead == '\0') | |
466 | ++sym->name; | |
467 | else | |
468 | { | |
469 | char *new; | |
470 | ||
471 | new = xmalloc (strlen (bfd_asymbol_name (sym)) + 1); | |
472 | new[0] = outlead; | |
473 | strcpy (new + 1, bfd_asymbol_name (sym) + 1); | |
474 | sym->name = new; | |
475 | } | |
476 | } | |
477 | } | |
478 | else | |
479 | { | |
480 | char *new; | |
481 | ||
482 | new = xmalloc (strlen (bfd_asymbol_name (sym)) + 2); | |
483 | new[0] = outlead; | |
484 | strcpy (new + 1, bfd_asymbol_name (sym)); | |
485 | sym->name = new; | |
486 | } | |
487 | } | |
488 | ||
ef5b5368 ILT |
489 | /* NLM's have an uninitialized data section, but they do not |
490 | have a common section in the Unix sense. Move all common | |
491 | symbols into the .bss section, and mark them as exported. */ | |
492 | if (bfd_is_com_section (bfd_get_section (sym))) | |
493 | { | |
494 | bfd_vma size; | |
ef5b5368 ILT |
495 | |
496 | sym->section = bss_sec; | |
497 | size = sym->value; | |
498 | sym->value = bss_sec->_raw_size; | |
499 | bss_sec->_raw_size += size; | |
500 | align = 1 << bss_sec->alignment_power; | |
501 | bss_sec->_raw_size = (bss_sec->_raw_size + align - 1) &~ (align - 1); | |
ef5b5368 ILT |
502 | sym->flags |= BSF_EXPORT | BSF_GLOBAL; |
503 | } | |
90d8edfd ILT |
504 | else if (bfd_get_section (sym)->output_section != NULL) |
505 | { | |
506 | /* Move the symbol into the output section. */ | |
507 | sym->value += bfd_get_section (sym)->output_offset; | |
508 | sym->section = bfd_get_section (sym)->output_section; | |
509 | /* This is no longer a section symbol. */ | |
510 | sym->flags &=~ BSF_SECTION_SYM; | |
511 | } | |
ef5b5368 ILT |
512 | |
513 | /* Force _edata and _end to be defined. This would normally be | |
514 | done by the linker, but the manipulation of the common | |
515 | symbols will confuse it. */ | |
4bd7a65f ILT |
516 | if ((sym->flags & BSF_DEBUGGING) == 0 |
517 | && bfd_asymbol_name (sym)[0] == '_' | |
a18ff4a7 | 518 | && bfd_is_und_section (bfd_get_section (sym))) |
ef5b5368 ILT |
519 | { |
520 | if (strcmp (bfd_asymbol_name (sym), "_edata") == 0) | |
521 | { | |
522 | sym->section = bss_sec; | |
523 | sym->value = 0; | |
524 | } | |
525 | if (strcmp (bfd_asymbol_name (sym), "_end") == 0) | |
526 | { | |
527 | sym->section = bss_sec; | |
528 | endsym = sym; | |
529 | } | |
d5e29b60 | 530 | |
9d11577a | 531 | #ifdef NLMCONV_POWERPC |
4bd7a65f ILT |
532 | /* For PowerPC NetWare, we define __GOT0. This is the start |
533 | of the .got section. */ | |
534 | if (bfd_get_arch (inbfd) == bfd_arch_powerpc | |
535 | && strcmp (bfd_asymbol_name (sym), "__GOT0") == 0) | |
536 | { | |
537 | asection *got_sec; | |
538 | ||
539 | got_sec = bfd_get_section_by_name (inbfd, ".got"); | |
540 | assert (got_sec != (asection *) NULL); | |
541 | sym->value = got_sec->output_offset; | |
542 | sym->section = got_sec->output_section; | |
543 | } | |
9d11577a | 544 | #endif |
4bd7a65f | 545 | } |
ef5b5368 ILT |
546 | |
547 | /* If this is a global symbol, check the export list. */ | |
548 | if ((sym->flags & (BSF_EXPORT | BSF_GLOBAL)) != 0) | |
d92aadfd ILT |
549 | { |
550 | register struct string_list *l; | |
ef5b5368 | 551 | int found_simple; |
d92aadfd | 552 | |
ef5b5368 ILT |
553 | /* Unfortunately, a symbol can appear multiple times on the |
554 | export list, with and without prefixes. */ | |
555 | found_simple = 0; | |
d92aadfd ILT |
556 | for (l = export_symbols; l != NULL; l = l->next) |
557 | { | |
558 | if (strcmp (l->string, bfd_asymbol_name (sym)) == 0) | |
ef5b5368 | 559 | found_simple = 1; |
d92aadfd ILT |
560 | else |
561 | { | |
562 | char *zbase; | |
563 | ||
564 | zbase = strchr (l->string, '@'); | |
565 | if (zbase != NULL | |
566 | && strcmp (zbase + 1, bfd_asymbol_name (sym)) == 0) | |
567 | { | |
ef5b5368 ILT |
568 | /* We must add a symbol with this prefix. */ |
569 | if (newsymcount >= newsymalloc) | |
570 | { | |
571 | newsymalloc += 10; | |
572 | newsyms = ((asymbol **) | |
cef35d48 | 573 | xrealloc ((PTR) newsyms, |
ef5b5368 ILT |
574 | (newsymalloc |
575 | * sizeof (asymbol *)))); | |
576 | } | |
577 | newsyms[newsymcount] = | |
578 | (asymbol *) xmalloc (sizeof (asymbol)); | |
579 | *newsyms[newsymcount] = *sym; | |
580 | newsyms[newsymcount]->name = l->string; | |
581 | ++newsymcount; | |
d92aadfd ILT |
582 | } |
583 | } | |
584 | } | |
ef5b5368 ILT |
585 | if (! found_simple) |
586 | { | |
587 | /* The unmodified symbol is actually not exported at | |
588 | all. */ | |
589 | sym->flags &=~ (BSF_GLOBAL | BSF_EXPORT); | |
590 | sym->flags |= BSF_LOCAL; | |
591 | } | |
d92aadfd ILT |
592 | } |
593 | ||
594 | /* If it's an undefined symbol, see if it's on the import list. | |
595 | Change the prefix if necessary. */ | |
a18ff4a7 | 596 | if (bfd_is_und_section (bfd_get_section (sym))) |
d92aadfd ILT |
597 | { |
598 | register struct string_list *l; | |
599 | ||
600 | for (l = import_symbols; l != NULL; l = l->next) | |
601 | { | |
602 | if (strcmp (l->string, bfd_asymbol_name (sym)) == 0) | |
603 | break; | |
604 | else | |
605 | { | |
606 | char *zbase; | |
607 | ||
608 | zbase = strchr (l->string, '@'); | |
609 | if (zbase != NULL | |
610 | && strcmp (zbase + 1, bfd_asymbol_name (sym)) == 0) | |
611 | { | |
612 | sym->name = l->string; | |
613 | break; | |
614 | } | |
615 | } | |
616 | } | |
617 | if (l == NULL) | |
618 | fprintf (stderr, | |
619 | "%s: warning: symbol %s imported but not in import list\n", | |
620 | program_name, bfd_asymbol_name (sym)); | |
621 | } | |
622 | ||
623 | /* See if it's one of the special named symbols. */ | |
4bd7a65f | 624 | if ((sym->flags & BSF_DEBUGGING) == 0) |
d92aadfd | 625 | { |
4bd7a65f ILT |
626 | bfd_vma val; |
627 | ||
628 | /* FIXME: If these symbols are not in the .text section, we | |
629 | add the .text section size to the value. This may not be | |
630 | correct for all targets. I'm not sure how this should | |
631 | really be handled. */ | |
632 | if (strcmp (bfd_asymbol_name (sym), start_procedure) == 0) | |
633 | { | |
634 | val = bfd_asymbol_value (sym); | |
635 | if (bfd_get_section (sym) == data_sec | |
636 | && text_sec != (asection *) NULL) | |
637 | val += bfd_section_size (outbfd, text_sec); | |
638 | if (! bfd_set_start_address (outbfd, val)) | |
639 | bfd_fatal ("set start address"); | |
640 | gotstart = true; | |
641 | } | |
642 | if (strcmp (bfd_asymbol_name (sym), exit_procedure) == 0) | |
643 | { | |
644 | val = bfd_asymbol_value (sym); | |
645 | if (bfd_get_section (sym) == data_sec | |
646 | && text_sec != (asection *) NULL) | |
647 | val += bfd_section_size (outbfd, text_sec); | |
648 | nlm_fixed_header (outbfd)->exitProcedureOffset = val; | |
649 | gotexit = true; | |
650 | } | |
651 | if (check_procedure != NULL | |
652 | && strcmp (bfd_asymbol_name (sym), check_procedure) == 0) | |
653 | { | |
654 | val = bfd_asymbol_value (sym); | |
655 | if (bfd_get_section (sym) == data_sec | |
656 | && text_sec != (asection *) NULL) | |
657 | val += bfd_section_size (outbfd, text_sec); | |
658 | nlm_fixed_header (outbfd)->checkUnloadProcedureOffset = val; | |
659 | gotcheck = true; | |
660 | } | |
d92aadfd ILT |
661 | } |
662 | } | |
663 | ||
ef5b5368 | 664 | if (endsym != NULL) |
4bd7a65f ILT |
665 | { |
666 | endsym->value = bfd_get_section_size_before_reloc (bss_sec); | |
667 | ||
668 | /* FIXME: If any relocs referring to _end use inplace addends, | |
669 | then I think they need to be updated. This is handled by | |
670 | i386_mangle_relocs. Is it needed for any other object | |
671 | formats? */ | |
672 | } | |
ef5b5368 ILT |
673 | |
674 | if (newsymcount == 0) | |
675 | outsyms = symbols; | |
676 | else | |
677 | { | |
678 | outsyms = (asymbol **) xmalloc ((symcount + newsymcount + 1) | |
679 | * sizeof (asymbol *)); | |
680 | memcpy (outsyms, symbols, symcount * sizeof (asymbol *)); | |
681 | memcpy (outsyms + symcount, newsyms, newsymcount * sizeof (asymbol *)); | |
682 | outsyms[symcount + newsymcount] = NULL; | |
683 | } | |
684 | ||
685 | bfd_set_symtab (outbfd, outsyms, symcount + newsymcount); | |
d92aadfd ILT |
686 | |
687 | if (! gotstart) | |
688 | fprintf (stderr, "%s: warning: START procedure %s not defined\n", | |
689 | program_name, start_procedure); | |
690 | if (! gotexit) | |
691 | fprintf (stderr, "%s: warning: EXIT procedure %s not defined\n", | |
692 | program_name, exit_procedure); | |
693 | if (check_procedure != NULL | |
694 | && ! gotcheck) | |
695 | fprintf (stderr, "%s: warning: CHECK procedure %s not defined\n", | |
696 | program_name, check_procedure); | |
697 | ||
d92aadfd ILT |
698 | /* Add additional sections required for the header information. */ |
699 | if (custom_file != NULL) | |
700 | { | |
701 | custom_data = fopen (custom_file, "r"); | |
702 | if (custom_data == NULL | |
703 | || fstat (fileno (custom_data), &st) < 0) | |
704 | { | |
705 | fprintf (stderr, "%s:%s: %s\n", program_name, custom_file, | |
706 | strerror (errno)); | |
707 | custom_file = NULL; | |
708 | } | |
709 | else | |
710 | { | |
711 | custom_size = st.st_size; | |
712 | custom_section = bfd_make_section (outbfd, ".nlmcustom"); | |
713 | if (custom_section == NULL | |
714 | || ! bfd_set_section_size (outbfd, custom_section, custom_size) | |
715 | || ! bfd_set_section_flags (outbfd, custom_section, | |
716 | SEC_HAS_CONTENTS)) | |
717 | bfd_fatal ("custom section"); | |
718 | } | |
719 | } | |
720 | if (help_file != NULL) | |
721 | { | |
722 | help_data = fopen (help_file, "r"); | |
723 | if (help_data == NULL | |
724 | || fstat (fileno (help_data), &st) < 0) | |
725 | { | |
726 | fprintf (stderr, "%s:%s: %s\n", program_name, help_file, | |
727 | strerror (errno)); | |
728 | help_file = NULL; | |
729 | } | |
730 | else | |
731 | { | |
732 | help_size = st.st_size; | |
733 | help_section = bfd_make_section (outbfd, ".nlmhelp"); | |
734 | if (help_section == NULL | |
735 | || ! bfd_set_section_size (outbfd, help_section, help_size) | |
736 | || ! bfd_set_section_flags (outbfd, help_section, | |
737 | SEC_HAS_CONTENTS)) | |
738 | bfd_fatal ("help section"); | |
739 | strncpy (nlm_extended_header (outbfd)->stamp, "MeSsAgEs", 8); | |
740 | } | |
741 | } | |
742 | if (message_file != NULL) | |
743 | { | |
744 | message_data = fopen (message_file, "r"); | |
745 | if (message_data == NULL | |
746 | || fstat (fileno (message_data), &st) < 0) | |
747 | { | |
748 | fprintf (stderr, "%s:%s: %s\n", program_name, message_file, | |
749 | strerror (errno)); | |
750 | message_file = NULL; | |
751 | } | |
752 | else | |
753 | { | |
754 | message_size = st.st_size; | |
755 | message_section = bfd_make_section (outbfd, ".nlmmessages"); | |
756 | if (message_section == NULL | |
757 | || ! bfd_set_section_size (outbfd, message_section, message_size) | |
758 | || ! bfd_set_section_flags (outbfd, message_section, | |
759 | SEC_HAS_CONTENTS)) | |
760 | bfd_fatal ("message section"); | |
761 | strncpy (nlm_extended_header (outbfd)->stamp, "MeSsAgEs", 8); | |
762 | } | |
763 | } | |
764 | if (modules != NULL) | |
765 | { | |
766 | struct string_list *l; | |
767 | ||
768 | module_size = 0; | |
769 | for (l = modules; l != NULL; l = l->next) | |
770 | module_size += strlen (l->string) + 1; | |
771 | module_section = bfd_make_section (outbfd, ".nlmmodules"); | |
772 | if (module_section == NULL | |
773 | || ! bfd_set_section_size (outbfd, module_section, module_size) | |
774 | || ! bfd_set_section_flags (outbfd, module_section, | |
775 | SEC_HAS_CONTENTS)) | |
776 | bfd_fatal ("module section"); | |
777 | } | |
778 | if (rpc_file != NULL) | |
779 | { | |
780 | rpc_data = fopen (rpc_file, "r"); | |
781 | if (rpc_data == NULL | |
782 | || fstat (fileno (rpc_data), &st) < 0) | |
783 | { | |
784 | fprintf (stderr, "%s:%s: %s\n", program_name, rpc_file, | |
785 | strerror (errno)); | |
786 | rpc_file = NULL; | |
787 | } | |
788 | else | |
789 | { | |
790 | rpc_size = st.st_size; | |
791 | rpc_section = bfd_make_section (outbfd, ".nlmrpc"); | |
792 | if (rpc_section == NULL | |
793 | || ! bfd_set_section_size (outbfd, rpc_section, rpc_size) | |
794 | || ! bfd_set_section_flags (outbfd, rpc_section, | |
795 | SEC_HAS_CONTENTS)) | |
796 | bfd_fatal ("rpc section"); | |
797 | strncpy (nlm_extended_header (outbfd)->stamp, "MeSsAgEs", 8); | |
798 | } | |
799 | } | |
ef5b5368 ILT |
800 | if (sharelib_file != NULL) |
801 | { | |
802 | sharedbfd = bfd_openr (sharelib_file, output_format); | |
803 | if (sharedbfd == NULL | |
804 | || ! bfd_check_format (sharedbfd, bfd_object)) | |
805 | { | |
806 | fprintf (stderr, "%s:%s: %s\n", program_name, sharelib_file, | |
7681bc7b | 807 | bfd_errmsg (bfd_get_error ())); |
ef5b5368 ILT |
808 | sharelib_file = NULL; |
809 | } | |
810 | else | |
811 | { | |
812 | sharedhdr = *nlm_fixed_header (sharedbfd); | |
813 | bfd_close (sharedbfd); | |
814 | shared_data = fopen (sharelib_file, "r"); | |
815 | if (shared_data == NULL | |
816 | || (fstat (fileno (shared_data), &st) < 0)) | |
817 | { | |
818 | fprintf (stderr, "%s:%s: %s\n", program_name, sharelib_file, | |
819 | strerror (errno)); | |
820 | sharelib_file = NULL; | |
821 | } | |
822 | else | |
823 | { | |
824 | /* If we were clever, we could just copy out the | |
825 | sections of the shared library which we actually | |
826 | need. However, we would have to figure out the sizes | |
827 | of the external and public information, and that can | |
828 | not be done without reading through them. */ | |
1edb7335 ILT |
829 | if (sharedhdr.uninitializedDataSize > 0) |
830 | { | |
831 | /* There is no place to record this information. */ | |
832 | fprintf (stderr, | |
833 | "%s:%s: warning: shared libraries can not have uninitialized data\n", | |
834 | program_name, sharelib_file); | |
835 | } | |
ef5b5368 ILT |
836 | shared_offset = st.st_size; |
837 | if (shared_offset > sharedhdr.codeImageOffset) | |
838 | shared_offset = sharedhdr.codeImageOffset; | |
839 | if (shared_offset > sharedhdr.dataImageOffset) | |
840 | shared_offset = sharedhdr.dataImageOffset; | |
841 | if (shared_offset > sharedhdr.relocationFixupOffset) | |
842 | shared_offset = sharedhdr.relocationFixupOffset; | |
843 | if (shared_offset > sharedhdr.externalReferencesOffset) | |
844 | shared_offset = sharedhdr.externalReferencesOffset; | |
845 | if (shared_offset > sharedhdr.publicsOffset) | |
846 | shared_offset = sharedhdr.publicsOffset; | |
847 | shared_size = st.st_size - shared_offset; | |
848 | shared_section = bfd_make_section (outbfd, ".nlmshared"); | |
849 | if (shared_section == NULL | |
850 | || ! bfd_set_section_size (outbfd, shared_section, | |
851 | shared_size) | |
852 | || ! bfd_set_section_flags (outbfd, shared_section, | |
853 | SEC_HAS_CONTENTS)) | |
854 | bfd_fatal ("shared section"); | |
855 | strncpy (nlm_extended_header (outbfd)->stamp, "MeSsAgEs", 8); | |
856 | } | |
857 | } | |
858 | } | |
859 | ||
860 | /* Check whether a version was given. */ | |
861 | if (strncmp (version_hdr->stamp, "VeRsIoN#", 8) != 0) | |
862 | fprintf (stderr, "%s: warning: No version number given\n", | |
863 | program_name); | |
864 | ||
865 | /* At least for now, always create an extended header, because that | |
866 | is what NLMLINK does. */ | |
867 | strncpy (nlm_extended_header (outbfd)->stamp, "MeSsAgEs", 8); | |
868 | ||
162794fe | 869 | strncpy (nlm_cygnus_ext_header (outbfd)->stamp, "CyGnUsEx", 8); |
dcb210cb | 870 | |
ef5b5368 ILT |
871 | /* If the date was not given, force it in. */ |
872 | if (nlm_version_header (outbfd)->month == 0 | |
873 | && nlm_version_header (outbfd)->day == 0 | |
874 | && nlm_version_header (outbfd)->year == 0) | |
875 | { | |
90d8edfd | 876 | time_t now; |
ef5b5368 ILT |
877 | struct tm *ptm; |
878 | ||
879 | time (&now); | |
880 | ptm = localtime (&now); | |
881 | nlm_version_header (outbfd)->month = ptm->tm_mon + 1; | |
882 | nlm_version_header (outbfd)->day = ptm->tm_mday; | |
883 | nlm_version_header (outbfd)->year = ptm->tm_year + 1900; | |
884 | strncpy (version_hdr->stamp, "VeRsIoN#", 8); | |
885 | } | |
4bd7a65f | 886 | |
9d11577a | 887 | #ifdef NLMCONV_POWERPC |
4bd7a65f | 888 | /* Resolve the stubs we build for PowerPC NetWare. */ |
03975925 ILT |
889 | if (bfd_get_arch (inbfd) == bfd_arch_powerpc) |
890 | powerpc_resolve_stubs (inbfd, outbfd); | |
9d11577a | 891 | #endif |
d92aadfd ILT |
892 | |
893 | /* Copy over the sections. */ | |
894 | bfd_map_over_sections (inbfd, copy_sections, (PTR) outbfd); | |
895 | ||
896 | /* Finish up the header information. */ | |
897 | if (custom_file != NULL) | |
898 | { | |
899 | PTR data; | |
900 | ||
901 | data = xmalloc (custom_size); | |
902 | if (fread (data, 1, custom_size, custom_data) != custom_size) | |
903 | fprintf (stderr, "%s:%s: read: %s\n", program_name, custom_file, | |
904 | strerror (errno)); | |
905 | else | |
906 | { | |
907 | if (! bfd_set_section_contents (outbfd, custom_section, data, | |
908 | (file_ptr) 0, custom_size)) | |
909 | bfd_fatal ("custom section"); | |
910 | nlm_fixed_header (outbfd)->customDataOffset = | |
911 | custom_section->filepos; | |
912 | nlm_fixed_header (outbfd)->customDataSize = custom_size; | |
913 | } | |
914 | free (data); | |
915 | } | |
916 | if (! debug_info) | |
917 | { | |
918 | /* As a special hack, the backend recognizes a debugInfoOffset | |
919 | of -1 to mean that it should not output any debugging | |
920 | information. This can not be handling by fiddling with the | |
921 | symbol table because exported symbols appear in both the | |
922 | export information and the debugging information. */ | |
923 | nlm_fixed_header (outbfd)->debugInfoOffset = (file_ptr) -1; | |
924 | } | |
925 | if (map_file != NULL) | |
926 | fprintf (stderr, | |
e70f2bde | 927 | "%s: warning: MAP and FULLMAP are not supported; try ld -M\n", |
d92aadfd ILT |
928 | program_name); |
929 | if (help_file != NULL) | |
930 | { | |
931 | PTR data; | |
932 | ||
933 | data = xmalloc (help_size); | |
934 | if (fread (data, 1, help_size, help_data) != help_size) | |
935 | fprintf (stderr, "%s:%s: read: %s\n", program_name, help_file, | |
936 | strerror (errno)); | |
937 | else | |
938 | { | |
939 | if (! bfd_set_section_contents (outbfd, help_section, data, | |
940 | (file_ptr) 0, help_size)) | |
941 | bfd_fatal ("help section"); | |
942 | nlm_extended_header (outbfd)->helpFileOffset = | |
943 | help_section->filepos; | |
944 | nlm_extended_header (outbfd)->helpFileLength = help_size; | |
945 | } | |
946 | free (data); | |
947 | } | |
948 | if (message_file != NULL) | |
949 | { | |
950 | PTR data; | |
951 | ||
952 | data = xmalloc (message_size); | |
953 | if (fread (data, 1, message_size, message_data) != message_size) | |
954 | fprintf (stderr, "%s:%s: read: %s\n", program_name, message_file, | |
955 | strerror (errno)); | |
956 | else | |
957 | { | |
958 | if (! bfd_set_section_contents (outbfd, message_section, data, | |
959 | (file_ptr) 0, message_size)) | |
960 | bfd_fatal ("message section"); | |
961 | nlm_extended_header (outbfd)->messageFileOffset = | |
962 | message_section->filepos; | |
963 | nlm_extended_header (outbfd)->messageFileLength = message_size; | |
964 | ||
965 | /* FIXME: Are these offsets correct on all platforms? Are | |
966 | they 32 bits on all platforms? What endianness? */ | |
967 | nlm_extended_header (outbfd)->languageID = | |
968 | bfd_h_get_32 (outbfd, (bfd_byte *) data + 106); | |
969 | nlm_extended_header (outbfd)->messageCount = | |
970 | bfd_h_get_32 (outbfd, (bfd_byte *) data + 110); | |
971 | } | |
972 | free (data); | |
973 | } | |
974 | if (modules != NULL) | |
975 | { | |
976 | PTR data; | |
419093bc | 977 | unsigned char *set; |
d92aadfd ILT |
978 | struct string_list *l; |
979 | bfd_size_type c; | |
980 | ||
981 | data = xmalloc (module_size); | |
982 | c = 0; | |
419093bc | 983 | set = (unsigned char *) data; |
d92aadfd ILT |
984 | for (l = modules; l != NULL; l = l->next) |
985 | { | |
986 | *set = strlen (l->string); | |
987 | strncpy (set + 1, l->string, *set); | |
988 | set += *set + 1; | |
989 | ++c; | |
990 | } | |
991 | if (! bfd_set_section_contents (outbfd, module_section, data, | |
992 | (file_ptr) 0, module_size)) | |
993 | bfd_fatal ("module section"); | |
994 | nlm_fixed_header (outbfd)->moduleDependencyOffset = | |
995 | module_section->filepos; | |
996 | nlm_fixed_header (outbfd)->numberOfModuleDependencies = c; | |
997 | } | |
998 | if (rpc_file != NULL) | |
999 | { | |
1000 | PTR data; | |
1001 | ||
1002 | data = xmalloc (rpc_size); | |
1003 | if (fread (data, 1, rpc_size, rpc_data) != rpc_size) | |
1004 | fprintf (stderr, "%s:%s: read: %s\n", program_name, rpc_file, | |
1005 | strerror (errno)); | |
1006 | else | |
1007 | { | |
1008 | if (! bfd_set_section_contents (outbfd, rpc_section, data, | |
1009 | (file_ptr) 0, rpc_size)) | |
1010 | bfd_fatal ("rpc section"); | |
1011 | nlm_extended_header (outbfd)->RPCDataOffset = | |
1012 | rpc_section->filepos; | |
1013 | nlm_extended_header (outbfd)->RPCDataLength = rpc_size; | |
1014 | } | |
1015 | free (data); | |
1016 | } | |
ef5b5368 ILT |
1017 | if (sharelib_file != NULL) |
1018 | { | |
1019 | PTR data; | |
1020 | ||
1021 | data = xmalloc (shared_size); | |
1022 | if (fseek (shared_data, shared_offset, SEEK_SET) != 0 | |
1023 | || fread (data, 1, shared_size, shared_data) != shared_size) | |
1024 | fprintf (stderr, "%s:%s: read: %s\n", program_name, sharelib_file, | |
1025 | strerror (errno)); | |
1026 | else | |
1027 | { | |
1028 | if (! bfd_set_section_contents (outbfd, shared_section, data, | |
1029 | (file_ptr) 0, shared_size)) | |
1030 | bfd_fatal ("shared section"); | |
1031 | } | |
1032 | nlm_extended_header (outbfd)->sharedCodeOffset = | |
1033 | sharedhdr.codeImageOffset - shared_offset + shared_section->filepos; | |
1034 | nlm_extended_header (outbfd)->sharedCodeLength = | |
1035 | sharedhdr.codeImageSize; | |
1036 | nlm_extended_header (outbfd)->sharedDataOffset = | |
1037 | sharedhdr.dataImageOffset - shared_offset + shared_section->filepos; | |
1038 | nlm_extended_header (outbfd)->sharedDataLength = | |
1039 | sharedhdr.dataImageSize; | |
1040 | nlm_extended_header (outbfd)->sharedRelocationFixupOffset = | |
1041 | (sharedhdr.relocationFixupOffset | |
1042 | - shared_offset | |
1043 | + shared_section->filepos); | |
1044 | nlm_extended_header (outbfd)->sharedRelocationFixupCount = | |
1045 | sharedhdr.numberOfRelocationFixups; | |
1046 | nlm_extended_header (outbfd)->sharedExternalReferenceOffset = | |
1047 | (sharedhdr.externalReferencesOffset | |
1048 | - shared_offset | |
1049 | + shared_section->filepos); | |
1050 | nlm_extended_header (outbfd)->sharedExternalReferenceCount = | |
1051 | sharedhdr.numberOfExternalReferences; | |
1052 | nlm_extended_header (outbfd)->sharedPublicsOffset = | |
1053 | sharedhdr.publicsOffset - shared_offset + shared_section->filepos; | |
1054 | nlm_extended_header (outbfd)->sharedPublicsCount = | |
1055 | sharedhdr.numberOfPublics; | |
a30f59a4 ILT |
1056 | nlm_extended_header (outbfd)->sharedDebugRecordOffset = |
1057 | sharedhdr.debugInfoOffset - shared_offset + shared_section->filepos; | |
1058 | nlm_extended_header (outbfd)->sharedDebugRecordCount = | |
1059 | sharedhdr.numberOfDebugRecords; | |
ef5b5368 ILT |
1060 | nlm_extended_header (outbfd)->SharedInitializationOffset = |
1061 | sharedhdr.codeStartOffset; | |
1062 | nlm_extended_header (outbfd)->SharedExitProcedureOffset = | |
1063 | sharedhdr.exitProcedureOffset; | |
1064 | free (data); | |
1065 | } | |
0f6df2ee | 1066 | len = strlen (output_file); |
d92aadfd ILT |
1067 | if (len > NLM_MODULE_NAME_SIZE - 2) |
1068 | len = NLM_MODULE_NAME_SIZE - 2; | |
1069 | nlm_fixed_header (outbfd)->moduleName[0] = len; | |
90d8edfd | 1070 | |
0f6df2ee | 1071 | strncpy (nlm_fixed_header (outbfd)->moduleName + 1, output_file, |
d92aadfd ILT |
1072 | NLM_MODULE_NAME_SIZE - 2); |
1073 | nlm_fixed_header (outbfd)->moduleName[NLM_MODULE_NAME_SIZE - 1] = '\0'; | |
90d8edfd ILT |
1074 | for (modname = nlm_fixed_header (outbfd)->moduleName; |
1075 | *modname != '\0'; | |
1076 | modname++) | |
1077 | if (islower (*modname)) | |
1078 | *modname = toupper (*modname); | |
1079 | ||
d92aadfd ILT |
1080 | strncpy (nlm_variable_header (outbfd)->oldThreadName, " LONG", |
1081 | NLM_OLD_THREAD_NAME_LENGTH); | |
1082 | ||
162794fe ILT |
1083 | nlm_cygnus_ext_header (outbfd)->offset = secsec->filepos; |
1084 | nlm_cygnus_ext_header (outbfd)->length = bfd_section_size (outbfd, secsec); | |
dcb210cb | 1085 | |
d92aadfd | 1086 | if (! bfd_close (outbfd)) |
0f6df2ee | 1087 | bfd_fatal (output_file); |
d92aadfd | 1088 | if (! bfd_close (inbfd)) |
0f6df2ee ILT |
1089 | bfd_fatal (input_file); |
1090 | ||
1091 | if (unlink_on_exit != NULL) | |
1092 | unlink (unlink_on_exit); | |
d92aadfd ILT |
1093 | |
1094 | return 0; | |
1095 | } | |
1096 | \f | |
1097 | /* Display a help message and exit. */ | |
1098 | ||
1099 | static void | |
1100 | show_help () | |
1101 | { | |
1102 | printf ("%s: Convert an object file into a NetWare Loadable Module\n", | |
1103 | program_name); | |
1104 | show_usage (stdout, 0); | |
1105 | } | |
1106 | ||
1107 | /* Show a usage message and exit. */ | |
1108 | ||
1109 | static void | |
1110 | show_usage (file, status) | |
1111 | FILE *file; | |
1112 | int status; | |
1113 | { | |
1114 | fprintf (file, "\ | |
e70f2bde ILT |
1115 | Usage: %s [-dhV] [-I bfdname] [-O bfdname] [-T header-file] [-l linker]\n\ |
1116 | [--input-target=bfdname] [--output-target=bfdname]\n\ | |
0f6df2ee ILT |
1117 | [--header-file=file] [--linker=linker] [--debug]\n\ |
1118 | [--help] [--version]\n\ | |
1119 | [in-file [out-file]]\n", | |
d92aadfd | 1120 | program_name); |
1d1a5a53 ILT |
1121 | if (status == 0) |
1122 | fprintf (file, "Report bugs to bug-gnu-utils@prep.ai.mit.edu\n"); | |
d92aadfd ILT |
1123 | exit (status); |
1124 | } | |
1125 | \f | |
1126 | /* Select the output format based on the input architecture, machine, | |
1127 | and endianness. This chooses the appropriate NLM target. */ | |
1128 | ||
1129 | static const char * | |
1130 | select_output_format (arch, mach, bigendian) | |
1131 | enum bfd_architecture arch; | |
419093bc | 1132 | unsigned long mach; |
d92aadfd ILT |
1133 | boolean bigendian; |
1134 | { | |
1135 | switch (arch) | |
1136 | { | |
9d11577a | 1137 | #ifdef NLMCONV_I386 |
d92aadfd ILT |
1138 | case bfd_arch_i386: |
1139 | return "nlm32-i386"; | |
9d11577a ILT |
1140 | #endif |
1141 | #ifdef NLMCONV_SPARC | |
a30f59a4 ILT |
1142 | case bfd_arch_sparc: |
1143 | return "nlm32-sparc"; | |
9d11577a ILT |
1144 | #endif |
1145 | #ifdef NLMCONV_ALPHA | |
419093bc ILT |
1146 | case bfd_arch_alpha: |
1147 | return "nlm32-alpha"; | |
9d11577a ILT |
1148 | #endif |
1149 | #ifdef NLMCONV_POWERPC | |
4bd7a65f ILT |
1150 | case bfd_arch_powerpc: |
1151 | return "nlm32-powerpc"; | |
9d11577a | 1152 | #endif |
d92aadfd | 1153 | default: |
9d11577a | 1154 | fprintf (stderr, "%s: support not compiled in for %s\n", |
d92aadfd ILT |
1155 | program_name, bfd_printable_arch_mach (arch, mach)); |
1156 | exit (1); | |
1157 | /* Avoid warning. */ | |
1158 | return NULL; | |
1159 | } | |
1160 | /*NOTREACHED*/ | |
1161 | } | |
1162 | \f | |
90d8edfd ILT |
1163 | /* The BFD sections are copied in two passes. This function selects |
1164 | the output section for each input section, and sets up the section | |
1165 | name, size, etc. */ | |
d92aadfd ILT |
1166 | |
1167 | static void | |
1168 | setup_sections (inbfd, insec, data_ptr) | |
1169 | bfd *inbfd; | |
1170 | asection *insec; | |
1171 | PTR data_ptr; | |
1172 | { | |
1173 | bfd *outbfd = (bfd *) data_ptr; | |
ef5b5368 | 1174 | flagword f; |
90d8edfd ILT |
1175 | const char *outname; |
1176 | asection *outsec; | |
e70f2bde ILT |
1177 | bfd_vma offset; |
1178 | bfd_size_type align; | |
1179 | bfd_size_type add; | |
dcb210cb | 1180 | bfd_size_type secsecsize; |
d92aadfd | 1181 | |
90d8edfd ILT |
1182 | f = bfd_get_section_flags (inbfd, insec); |
1183 | if (f & SEC_CODE) | |
1184 | outname = NLM_CODE_NAME; | |
1185 | else if ((f & SEC_LOAD) && (f & SEC_HAS_CONTENTS)) | |
1186 | outname = NLM_INITIALIZED_DATA_NAME; | |
1187 | else if (f & SEC_ALLOC) | |
1188 | outname = NLM_UNINITIALIZED_DATA_NAME; | |
1189 | else | |
1190 | outname = bfd_section_name (inbfd, insec); | |
1191 | ||
1192 | outsec = bfd_get_section_by_name (outbfd, outname); | |
d92aadfd ILT |
1193 | if (outsec == NULL) |
1194 | { | |
90d8edfd | 1195 | outsec = bfd_make_section (outbfd, outname); |
d92aadfd ILT |
1196 | if (outsec == NULL) |
1197 | bfd_fatal ("make section"); | |
1198 | } | |
1199 | ||
1200 | insec->output_section = outsec; | |
e70f2bde ILT |
1201 | |
1202 | offset = bfd_section_size (outbfd, outsec); | |
1203 | align = 1 << bfd_section_alignment (inbfd, insec); | |
1204 | add = ((offset + align - 1) &~ (align - 1)) - offset; | |
1205 | insec->output_offset = offset + add; | |
d92aadfd ILT |
1206 | |
1207 | if (! bfd_set_section_size (outbfd, outsec, | |
90d8edfd | 1208 | (bfd_section_size (outbfd, outsec) |
e70f2bde ILT |
1209 | + bfd_section_size (inbfd, insec) |
1210 | + add))) | |
d92aadfd ILT |
1211 | bfd_fatal ("set section size"); |
1212 | ||
90d8edfd ILT |
1213 | if ((bfd_section_alignment (inbfd, insec) |
1214 | > bfd_section_alignment (outbfd, outsec)) | |
1215 | && ! bfd_set_section_alignment (outbfd, outsec, | |
1216 | bfd_section_alignment (inbfd, insec))) | |
d92aadfd ILT |
1217 | bfd_fatal ("set section alignment"); |
1218 | ||
1d1a5a53 ILT |
1219 | if (! bfd_set_section_flags (outbfd, outsec, |
1220 | f | bfd_get_section_flags (outbfd, outsec))) | |
d92aadfd | 1221 | bfd_fatal ("set section flags"); |
419093bc ILT |
1222 | |
1223 | bfd_set_reloc (outbfd, outsec, (arelent **) NULL, 0); | |
dcb210cb ILT |
1224 | |
1225 | /* For each input section we allocate space for an entry in | |
1226 | .nlmsections. */ | |
1227 | secsecsize = bfd_section_size (outbfd, secsec); | |
1228 | secsecsize += strlen (bfd_section_name (inbfd, insec)) + 1; | |
1229 | secsecsize = (secsecsize + 3) &~ 3; | |
1230 | secsecsize += 8; | |
1231 | if (! bfd_set_section_size (outbfd, secsec, secsecsize)) | |
1232 | bfd_fatal ("set .nlmsections size"); | |
d92aadfd ILT |
1233 | } |
1234 | ||
1235 | /* Copy the section contents. */ | |
1236 | ||
1237 | static void | |
1238 | copy_sections (inbfd, insec, data_ptr) | |
1239 | bfd *inbfd; | |
1240 | asection *insec; | |
1241 | PTR data_ptr; | |
1242 | { | |
dcb210cb | 1243 | static bfd_size_type secsecoff = 0; |
d92aadfd | 1244 | bfd *outbfd = (bfd *) data_ptr; |
dcb210cb | 1245 | const char *inname; |
d92aadfd ILT |
1246 | asection *outsec; |
1247 | bfd_size_type size; | |
1248 | PTR contents; | |
ae5d2ff5 | 1249 | long reloc_size; |
dcb210cb ILT |
1250 | bfd_byte buf[4]; |
1251 | bfd_size_type add; | |
1252 | ||
1253 | inname = bfd_section_name (inbfd, insec); | |
d92aadfd | 1254 | |
90d8edfd | 1255 | outsec = insec->output_section; |
d92aadfd ILT |
1256 | assert (outsec != NULL); |
1257 | ||
1258 | size = bfd_get_section_size_before_reloc (insec); | |
d92aadfd ILT |
1259 | |
1260 | /* FIXME: Why are these necessary? */ | |
1261 | insec->_cooked_size = insec->_raw_size; | |
1262 | insec->reloc_done = true; | |
1263 | ||
1264 | if ((bfd_get_section_flags (inbfd, insec) & SEC_HAS_CONTENTS) == 0) | |
1265 | contents = NULL; | |
1266 | else | |
1267 | { | |
1268 | contents = xmalloc (size); | |
1269 | if (! bfd_get_section_contents (inbfd, insec, contents, | |
1270 | (file_ptr) 0, size)) | |
1271 | bfd_fatal (bfd_get_filename (inbfd)); | |
1272 | } | |
1273 | ||
1274 | reloc_size = bfd_get_reloc_upper_bound (inbfd, insec); | |
ae5d2ff5 ILT |
1275 | if (reloc_size < 0) |
1276 | bfd_fatal (bfd_get_filename (inbfd)); | |
419093bc | 1277 | if (reloc_size != 0) |
d92aadfd ILT |
1278 | { |
1279 | arelent **relocs; | |
ae5d2ff5 | 1280 | long reloc_count; |
d92aadfd ILT |
1281 | |
1282 | relocs = (arelent **) xmalloc (reloc_size); | |
1283 | reloc_count = bfd_canonicalize_reloc (inbfd, insec, relocs, symbols); | |
ae5d2ff5 ILT |
1284 | if (reloc_count < 0) |
1285 | bfd_fatal (bfd_get_filename (inbfd)); | |
419093bc | 1286 | mangle_relocs (outbfd, insec, &relocs, &reloc_count, (char *) contents, |
ef5b5368 | 1287 | size); |
419093bc ILT |
1288 | |
1289 | /* FIXME: refers to internal BFD fields. */ | |
1290 | if (outsec->orelocation != (arelent **) NULL) | |
1291 | { | |
1292 | bfd_size_type total_count; | |
1293 | arelent **combined; | |
1294 | ||
1295 | total_count = reloc_count + outsec->reloc_count; | |
d5e29b60 | 1296 | combined = (arelent **) xmalloc (total_count * sizeof (arelent *)); |
419093bc | 1297 | memcpy (combined, outsec->orelocation, |
d5e29b60 | 1298 | outsec->reloc_count * sizeof (arelent *)); |
419093bc | 1299 | memcpy (combined + outsec->reloc_count, relocs, |
d5e29b60 | 1300 | (size_t) (reloc_count * sizeof (arelent *))); |
419093bc ILT |
1301 | free (outsec->orelocation); |
1302 | reloc_count = total_count; | |
1303 | relocs = combined; | |
1304 | } | |
1305 | ||
d92aadfd ILT |
1306 | bfd_set_reloc (outbfd, outsec, relocs, reloc_count); |
1307 | } | |
1308 | ||
1309 | if (contents != NULL) | |
1310 | { | |
1311 | if (! bfd_set_section_contents (outbfd, outsec, contents, | |
90d8edfd | 1312 | insec->output_offset, size)) |
d92aadfd ILT |
1313 | bfd_fatal (bfd_get_filename (outbfd)); |
1314 | free (contents); | |
1315 | } | |
dcb210cb ILT |
1316 | |
1317 | /* Add this section to .nlmsections. */ | |
1318 | if (! bfd_set_section_contents (outbfd, secsec, (PTR) inname, secsecoff, | |
1319 | strlen (inname) + 1)) | |
1320 | bfd_fatal ("set .nlmsection contents"); | |
1321 | secsecoff += strlen (inname) + 1; | |
1322 | ||
1323 | add = ((secsecoff + 3) &~ 3) - secsecoff; | |
1324 | if (add != 0) | |
1325 | { | |
1326 | bfd_h_put_32 (outbfd, (bfd_vma) 0, buf); | |
1327 | if (! bfd_set_section_contents (outbfd, secsec, buf, secsecoff, add)) | |
1328 | bfd_fatal ("set .nlmsection contents"); | |
1329 | secsecoff += add; | |
1330 | } | |
1331 | ||
1332 | if (contents != NULL) | |
1333 | bfd_h_put_32 (outbfd, (bfd_vma) outsec->filepos, buf); | |
1334 | else | |
1335 | bfd_h_put_32 (outbfd, (bfd_vma) 0, buf); | |
1336 | if (! bfd_set_section_contents (outbfd, secsec, buf, secsecoff, 4)) | |
1337 | bfd_fatal ("set .nlmsection contents"); | |
1338 | secsecoff += 4; | |
1339 | ||
1340 | bfd_h_put_32 (outbfd, (bfd_vma) size, buf); | |
1341 | if (! bfd_set_section_contents (outbfd, secsec, buf, secsecoff, 4)) | |
1342 | bfd_fatal ("set .nlmsection contents"); | |
1343 | secsecoff += 4; | |
d92aadfd ILT |
1344 | } |
1345 | ||
1346 | /* Some, perhaps all, NetWare targets require changing the relocs used | |
1347 | by the input formats. */ | |
1348 | ||
1349 | static void | |
419093bc ILT |
1350 | mangle_relocs (outbfd, insec, relocs_ptr, reloc_count_ptr, contents, |
1351 | contents_size) | |
d92aadfd | 1352 | bfd *outbfd; |
ef5b5368 | 1353 | asection *insec; |
419093bc | 1354 | arelent ***relocs_ptr; |
ae5d2ff5 | 1355 | long *reloc_count_ptr; |
d92aadfd ILT |
1356 | char *contents; |
1357 | bfd_size_type contents_size; | |
1358 | { | |
1359 | switch (bfd_get_arch (outbfd)) | |
1360 | { | |
9d11577a | 1361 | #ifdef NLMCONV_I386 |
d92aadfd | 1362 | case bfd_arch_i386: |
419093bc ILT |
1363 | i386_mangle_relocs (outbfd, insec, relocs_ptr, reloc_count_ptr, |
1364 | contents, contents_size); | |
1365 | break; | |
9d11577a ILT |
1366 | #endif |
1367 | #ifdef NLMCONV_ALPHA | |
419093bc ILT |
1368 | case bfd_arch_alpha: |
1369 | alpha_mangle_relocs (outbfd, insec, relocs_ptr, reloc_count_ptr, | |
1370 | contents, contents_size); | |
d92aadfd | 1371 | break; |
9d11577a ILT |
1372 | #endif |
1373 | #ifdef NLMCONV_POWERPC | |
4bd7a65f ILT |
1374 | case bfd_arch_powerpc: |
1375 | powerpc_mangle_relocs (outbfd, insec, relocs_ptr, reloc_count_ptr, | |
1376 | contents, contents_size); | |
1377 | break; | |
9d11577a | 1378 | #endif |
d92aadfd | 1379 | default: |
419093bc ILT |
1380 | default_mangle_relocs (outbfd, insec, relocs_ptr, reloc_count_ptr, |
1381 | contents, contents_size); | |
d92aadfd ILT |
1382 | break; |
1383 | } | |
1384 | } | |
1385 | ||
419093bc ILT |
1386 | /* By default all we need to do for relocs is change the address by |
1387 | the output_offset. */ | |
1388 | ||
1389 | /*ARGSUSED*/ | |
1390 | static void | |
1391 | default_mangle_relocs (outbfd, insec, relocs_ptr, reloc_count_ptr, contents, | |
1392 | contents_size) | |
1393 | bfd *outbfd; | |
1394 | asection *insec; | |
1395 | arelent ***relocs_ptr; | |
ae5d2ff5 | 1396 | long *reloc_count_ptr; |
419093bc ILT |
1397 | char *contents; |
1398 | bfd_size_type contents_size; | |
1399 | { | |
1400 | if (insec->output_offset != 0) | |
1401 | { | |
ae5d2ff5 | 1402 | long reloc_count; |
419093bc | 1403 | register arelent **relocs; |
ae5d2ff5 | 1404 | register long i; |
419093bc ILT |
1405 | |
1406 | reloc_count = *reloc_count_ptr; | |
1407 | relocs = *relocs_ptr; | |
1408 | for (i = 0; i < reloc_count; i++, relocs++) | |
1409 | (*relocs)->address += insec->output_offset; | |
1410 | } | |
1411 | } | |
9d11577a ILT |
1412 | \f |
1413 | #ifdef NLMCONV_I386 | |
419093bc | 1414 | |
d92aadfd ILT |
1415 | /* NetWare on the i386 supports a restricted set of relocs, which are |
1416 | different from those used on other i386 targets. This routine | |
1417 | converts the relocs. It is, obviously, very target dependent. At | |
1418 | the moment, the nlm32-i386 backend performs similar translations; | |
1419 | however, it is more reliable and efficient to do them here. */ | |
1420 | ||
1421 | static reloc_howto_type nlm_i386_pcrel_howto = | |
1422 | HOWTO (1, /* type */ | |
1423 | 0, /* rightshift */ | |
1424 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1425 | 32, /* bitsize */ | |
1426 | true, /* pc_relative */ | |
1427 | 0, /* bitpos */ | |
1428 | complain_overflow_signed, /* complain_on_overflow */ | |
1429 | 0, /* special_function */ | |
1430 | "DISP32", /* name */ | |
1431 | true, /* partial_inplace */ | |
1432 | 0xffffffff, /* src_mask */ | |
1433 | 0xffffffff, /* dst_mask */ | |
1434 | true); /* pcrel_offset */ | |
1435 | ||
1436 | static void | |
419093bc | 1437 | i386_mangle_relocs (outbfd, insec, relocs_ptr, reloc_count_ptr, contents, |
ef5b5368 | 1438 | contents_size) |
d92aadfd | 1439 | bfd *outbfd; |
ef5b5368 | 1440 | asection *insec; |
419093bc | 1441 | arelent ***relocs_ptr; |
ae5d2ff5 | 1442 | long *reloc_count_ptr; |
d92aadfd ILT |
1443 | char *contents; |
1444 | bfd_size_type contents_size; | |
1445 | { | |
ae5d2ff5 | 1446 | long reloc_count, i; |
419093bc | 1447 | arelent **relocs; |
ef5b5368 ILT |
1448 | |
1449 | reloc_count = *reloc_count_ptr; | |
419093bc | 1450 | relocs = *relocs_ptr; |
ef5b5368 | 1451 | for (i = 0; i < reloc_count; i++) |
d92aadfd ILT |
1452 | { |
1453 | arelent *rel; | |
1454 | asymbol *sym; | |
a30f59a4 | 1455 | bfd_size_type address; |
d92aadfd ILT |
1456 | bfd_vma addend; |
1457 | ||
1458 | rel = *relocs++; | |
1459 | sym = *rel->sym_ptr_ptr; | |
1460 | ||
a30f59a4 ILT |
1461 | /* We're moving the relocs from the input section to the output |
1462 | section, so we must adjust the address accordingly. */ | |
1463 | address = rel->address; | |
1464 | rel->address += insec->output_offset; | |
1465 | ||
d92aadfd ILT |
1466 | /* Note that no serious harm will ensue if we fail to change a |
1467 | reloc. The backend will fail when writing out the reloc. */ | |
1468 | ||
1469 | /* Make sure this reloc is within the data we have. We use only | |
1470 | 4 byte relocs here, so we insist on having 4 bytes. */ | |
a30f59a4 | 1471 | if (address + 4 > contents_size) |
d92aadfd ILT |
1472 | continue; |
1473 | ||
ef5b5368 ILT |
1474 | /* A PC relative reloc entirely within a single section is |
1475 | completely unnecessary. This can be generated by ld -r. */ | |
1476 | if (sym == insec->symbol | |
1477 | && rel->howto != NULL | |
1478 | && rel->howto->pc_relative | |
1479 | && ! rel->howto->pcrel_offset) | |
1480 | { | |
1481 | --*reloc_count_ptr; | |
1482 | --relocs; | |
1483 | memmove (relocs, relocs + 1, | |
419093bc | 1484 | (size_t) ((reloc_count - i) * sizeof (arelent *))); |
ef5b5368 ILT |
1485 | continue; |
1486 | } | |
1487 | ||
90d8edfd ILT |
1488 | /* Get the amount the relocation will add in. */ |
1489 | addend = rel->addend + sym->value; | |
1490 | ||
1491 | /* NetWare doesn't support PC relative relocs against defined | |
1492 | symbols, so we have to eliminate them by doing the relocation | |
1493 | now. We can only do this if the reloc is within a single | |
1494 | section. */ | |
1495 | if (rel->howto != NULL | |
1496 | && rel->howto->pc_relative | |
1497 | && bfd_get_section (sym) == insec->output_section) | |
1498 | { | |
1499 | bfd_vma val; | |
1500 | ||
1501 | if (rel->howto->pcrel_offset) | |
a30f59a4 | 1502 | addend -= address; |
90d8edfd | 1503 | |
a30f59a4 | 1504 | val = bfd_get_32 (outbfd, (bfd_byte *) contents + address); |
90d8edfd | 1505 | val += addend; |
a30f59a4 | 1506 | bfd_put_32 (outbfd, val, (bfd_byte *) contents + address); |
90d8edfd ILT |
1507 | |
1508 | --*reloc_count_ptr; | |
1509 | --relocs; | |
1510 | memmove (relocs, relocs + 1, | |
419093bc | 1511 | (size_t) ((reloc_count - i) * sizeof (arelent *))); |
90d8edfd ILT |
1512 | continue; |
1513 | } | |
1514 | ||
d92aadfd ILT |
1515 | /* NetWare doesn't support reloc addends, so we get rid of them |
1516 | here by simply adding them into the object data. We handle | |
1517 | the symbol value, if any, the same way. */ | |
d92aadfd ILT |
1518 | if (addend != 0 |
1519 | && rel->howto != NULL | |
1520 | && rel->howto->rightshift == 0 | |
1521 | && rel->howto->size == 2 | |
1522 | && rel->howto->bitsize == 32 | |
1523 | && rel->howto->bitpos == 0 | |
1524 | && rel->howto->src_mask == 0xffffffff | |
1525 | && rel->howto->dst_mask == 0xffffffff) | |
1526 | { | |
1527 | bfd_vma val; | |
1528 | ||
a30f59a4 | 1529 | val = bfd_get_32 (outbfd, (bfd_byte *) contents + address); |
d92aadfd | 1530 | val += addend; |
a30f59a4 | 1531 | bfd_put_32 (outbfd, val, (bfd_byte *) contents + address); |
d92aadfd ILT |
1532 | |
1533 | /* Adjust the reloc for the changes we just made. */ | |
1534 | rel->addend = 0; | |
a18ff4a7 | 1535 | if (! bfd_is_und_section (bfd_get_section (sym))) |
d92aadfd ILT |
1536 | rel->sym_ptr_ptr = bfd_get_section (sym)->symbol_ptr_ptr; |
1537 | } | |
1538 | ||
1539 | /* NetWare uses a reloc with pcrel_offset set. We adjust | |
1540 | pc_relative relocs accordingly. We are going to change the | |
1541 | howto field, so we can only do this if the current one is | |
1542 | compatible. We should check that special_function is NULL | |
1543 | here, but at the moment coff-i386 uses a special_function | |
1544 | which does not affect what we are doing here. */ | |
1545 | if (rel->howto != NULL | |
1546 | && rel->howto->pc_relative | |
1547 | && ! rel->howto->pcrel_offset | |
1548 | && rel->howto->rightshift == 0 | |
1549 | && rel->howto->size == 2 | |
1550 | && rel->howto->bitsize == 32 | |
1551 | && rel->howto->bitpos == 0 | |
1552 | && rel->howto->src_mask == 0xffffffff | |
1553 | && rel->howto->dst_mask == 0xffffffff) | |
1554 | { | |
1555 | bfd_vma val; | |
1556 | ||
1557 | /* When pcrel_offset is not set, it means that the negative | |
1558 | of the address of the memory location is stored in the | |
1559 | memory location. We must add it back in. */ | |
a30f59a4 ILT |
1560 | val = bfd_get_32 (outbfd, (bfd_byte *) contents + address); |
1561 | val += address; | |
1562 | bfd_put_32 (outbfd, val, (bfd_byte *) contents + address); | |
d92aadfd ILT |
1563 | |
1564 | /* We must change to a new howto. */ | |
1565 | rel->howto = &nlm_i386_pcrel_howto; | |
1566 | } | |
1567 | } | |
1568 | } | |
419093bc | 1569 | |
9d11577a ILT |
1570 | #endif /* NLMCONV_I386 */ |
1571 | \f | |
1572 | #ifdef NLMCONV_ALPHA | |
1573 | ||
419093bc ILT |
1574 | /* On the Alpha the first reloc for every section must be a special |
1575 | relocs which hold the GP address. Also, the first reloc in the | |
1576 | file must be a special reloc which holds the address of the .lita | |
1577 | section. */ | |
1578 | ||
1579 | static reloc_howto_type nlm32_alpha_nw_howto = | |
1580 | HOWTO (ALPHA_R_NW_RELOC, /* type */ | |
1581 | 0, /* rightshift */ | |
1582 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1583 | 0, /* bitsize */ | |
1584 | false, /* pc_relative */ | |
1585 | 0, /* bitpos */ | |
1586 | complain_overflow_dont, /* complain_on_overflow */ | |
1587 | 0, /* special_function */ | |
1588 | "NW_RELOC", /* name */ | |
1589 | false, /* partial_inplace */ | |
1590 | 0, /* src_mask */ | |
1591 | 0, /* dst_mask */ | |
1592 | false); /* pcrel_offset */ | |
1593 | ||
1594 | /*ARGSUSED*/ | |
1595 | static void | |
1596 | alpha_mangle_relocs (outbfd, insec, relocs_ptr, reloc_count_ptr, contents, | |
1597 | contents_size) | |
1598 | bfd *outbfd; | |
1599 | asection *insec; | |
1600 | register arelent ***relocs_ptr; | |
ae5d2ff5 | 1601 | long *reloc_count_ptr; |
419093bc ILT |
1602 | char *contents; |
1603 | bfd_size_type contents_size; | |
1604 | { | |
ae5d2ff5 | 1605 | long old_reloc_count; |
419093bc ILT |
1606 | arelent **old_relocs; |
1607 | register arelent **relocs; | |
1608 | ||
1609 | old_reloc_count = *reloc_count_ptr; | |
1610 | old_relocs = *relocs_ptr; | |
1611 | relocs = (arelent **) xmalloc ((old_reloc_count + 3) * sizeof (arelent *)); | |
1612 | *relocs_ptr = relocs; | |
1613 | ||
1614 | if (nlm_alpha_backend_data (outbfd)->lita_address == 0) | |
1615 | { | |
1616 | bfd *inbfd; | |
1617 | asection *lita_section; | |
1618 | ||
1619 | inbfd = insec->owner; | |
1620 | lita_section = bfd_get_section_by_name (inbfd, _LITA); | |
1621 | if (lita_section != (asection *) NULL) | |
1622 | { | |
1623 | nlm_alpha_backend_data (outbfd)->lita_address = | |
1624 | bfd_get_section_vma (inbfd, lita_section); | |
1625 | nlm_alpha_backend_data (outbfd)->lita_size = | |
1626 | bfd_section_size (inbfd, lita_section); | |
1627 | } | |
1628 | else | |
1629 | { | |
1630 | /* Avoid outputting this reloc again. */ | |
1631 | nlm_alpha_backend_data (outbfd)->lita_address = 4; | |
1632 | } | |
1633 | ||
1634 | *relocs = (arelent *) xmalloc (sizeof (arelent)); | |
a18ff4a7 | 1635 | (*relocs)->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; |
419093bc ILT |
1636 | (*relocs)->address = nlm_alpha_backend_data (outbfd)->lita_address; |
1637 | (*relocs)->addend = nlm_alpha_backend_data (outbfd)->lita_size + 1; | |
1638 | (*relocs)->howto = &nlm32_alpha_nw_howto; | |
1639 | ++relocs; | |
1640 | ++(*reloc_count_ptr); | |
1641 | } | |
1642 | ||
f645a4bf | 1643 | /* Get the GP value from bfd. */ |
419093bc | 1644 | if (nlm_alpha_backend_data (outbfd)->gp == 0) |
f645a4bf ILT |
1645 | nlm_alpha_backend_data (outbfd)->gp = |
1646 | bfd_ecoff_get_gp_value (insec->owner); | |
419093bc ILT |
1647 | |
1648 | *relocs = (arelent *) xmalloc (sizeof (arelent)); | |
a18ff4a7 | 1649 | (*relocs)->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; |
419093bc ILT |
1650 | (*relocs)->address = nlm_alpha_backend_data (outbfd)->gp; |
1651 | (*relocs)->addend = 0; | |
1652 | (*relocs)->howto = &nlm32_alpha_nw_howto; | |
1653 | ++relocs; | |
1654 | ++(*reloc_count_ptr); | |
1655 | ||
1656 | memcpy ((PTR) relocs, (PTR) old_relocs, | |
1657 | (size_t) old_reloc_count * sizeof (arelent *)); | |
1658 | relocs[old_reloc_count] = (arelent *) NULL; | |
1659 | ||
1660 | free (old_relocs); | |
1661 | ||
1662 | if (insec->output_offset != 0) | |
1663 | { | |
1664 | register bfd_size_type i; | |
1665 | ||
1666 | for (i = 0; i < old_reloc_count; i++, relocs++) | |
1667 | (*relocs)->address += insec->output_offset; | |
1668 | } | |
1669 | } | |
4bd7a65f | 1670 | |
9d11577a ILT |
1671 | #endif /* NLMCONV_ALPHA */ |
1672 | \f | |
1673 | #ifdef NLMCONV_POWERPC | |
1674 | ||
4bd7a65f ILT |
1675 | /* We keep a linked list of stubs which we must build. Because BFD |
1676 | requires us to know the sizes of all sections before we can set the | |
1677 | contents of any, we must figure out which stubs we want to build | |
1678 | before we can actually build any of them. */ | |
1679 | ||
1680 | struct powerpc_stub | |
1681 | { | |
1682 | /* Next stub in linked list. */ | |
1683 | struct powerpc_stub *next; | |
1684 | ||
1685 | /* Symbol whose value is the start of the stub. This is a symbol | |
1686 | whose name begins with `.'. */ | |
1687 | asymbol *start; | |
1688 | ||
1689 | /* Symbol we are going to create a reloc against. This is a symbol | |
1690 | with the same name as START but without the leading `.'. */ | |
1691 | asymbol *reloc; | |
1692 | ||
1693 | /* The TOC index for this stub. This is the index into the TOC | |
1694 | section at which the reloc is created. */ | |
1695 | unsigned int toc_index; | |
1696 | }; | |
1697 | ||
1698 | /* The linked list of stubs. */ | |
1699 | ||
1700 | static struct powerpc_stub *powerpc_stubs; | |
1701 | ||
1702 | /* This is what a stub looks like. The first instruction will get | |
1703 | adjusted with the correct TOC index. */ | |
1704 | ||
1705 | static unsigned long powerpc_stub_insns[] = | |
1706 | { | |
1707 | 0x81820000, /* lwz r12,0(r2) */ | |
1708 | 0x90410014, /* stw r2,20(r1) */ | |
1709 | 0x800c0000, /* lwz r0,0(r12) */ | |
1710 | 0x804c0004, /* lwz r2,r(r12) */ | |
1711 | 0x7c0903a6, /* mtctr r0 */ | |
1712 | 0x4e800420, /* bctr */ | |
1713 | 0, /* Traceback table. */ | |
1714 | 0xc8000, | |
1715 | 0 | |
1716 | }; | |
1717 | ||
1718 | #define POWERPC_STUB_INSN_COUNT \ | |
1719 | (sizeof powerpc_stub_insns / sizeof powerpc_stub_insns[0]) | |
1720 | ||
1721 | #define POWERPC_STUB_SIZE (4 * POWERPC_STUB_INSN_COUNT) | |
1722 | ||
1723 | /* Each stub uses a four byte TOC entry. */ | |
1724 | #define POWERPC_STUB_TOC_ENTRY_SIZE (4) | |
1725 | ||
1726 | /* The original size of the .got section. */ | |
1727 | static bfd_size_type powerpc_initial_got_size; | |
1728 | ||
1729 | /* Look for all undefined symbols beginning with `.', and prepare to | |
1730 | build a stub for each one. */ | |
1731 | ||
1732 | static void | |
c59fa195 | 1733 | powerpc_build_stubs (inbfd, outbfd, symbols_ptr, symcount_ptr) |
4bd7a65f | 1734 | bfd *inbfd; |
c59fa195 | 1735 | bfd *outbfd; |
4bd7a65f | 1736 | asymbol ***symbols_ptr; |
ae5d2ff5 | 1737 | long *symcount_ptr; |
4bd7a65f ILT |
1738 | { |
1739 | asection *stub_sec; | |
1740 | asection *got_sec; | |
1741 | unsigned int got_base; | |
ae5d2ff5 ILT |
1742 | long i; |
1743 | long symcount; | |
1744 | long stubcount; | |
4bd7a65f ILT |
1745 | |
1746 | /* Make a section to hold stubs. We don't set SEC_HAS_CONTENTS for | |
1747 | the section to prevent copy_sections from reading from it. */ | |
1748 | stub_sec = bfd_make_section (inbfd, ".stubs"); | |
1749 | if (stub_sec == (asection *) NULL | |
1750 | || ! bfd_set_section_flags (inbfd, stub_sec, | |
1751 | (SEC_CODE | |
1752 | | SEC_RELOC | |
1753 | | SEC_ALLOC | |
1754 | | SEC_LOAD)) | |
1755 | || ! bfd_set_section_alignment (inbfd, stub_sec, 2)) | |
1756 | bfd_fatal (".stubs"); | |
1757 | ||
1758 | /* Get the TOC section, which is named .got. */ | |
1759 | got_sec = bfd_get_section_by_name (inbfd, ".got"); | |
1760 | if (got_sec == (asection *) NULL) | |
1761 | { | |
1762 | got_sec = bfd_make_section (inbfd, ".got"); | |
1763 | if (got_sec == (asection *) NULL | |
1764 | || ! bfd_set_section_flags (inbfd, got_sec, | |
1765 | (SEC_DATA | |
1766 | | SEC_RELOC | |
1767 | | SEC_ALLOC | |
1768 | | SEC_LOAD | |
1769 | | SEC_HAS_CONTENTS)) | |
1770 | || ! bfd_set_section_alignment (inbfd, got_sec, 2)) | |
1771 | bfd_fatal (".got"); | |
1772 | } | |
1773 | ||
1774 | powerpc_initial_got_size = bfd_section_size (inbfd, got_sec); | |
1775 | got_base = powerpc_initial_got_size; | |
1776 | got_base = (got_base + 3) &~ 3; | |
1777 | ||
1778 | stubcount = 0; | |
1779 | ||
1780 | symcount = *symcount_ptr; | |
1781 | for (i = 0; i < symcount; i++) | |
1782 | { | |
1783 | asymbol *sym; | |
1784 | asymbol *newsym; | |
1785 | char *newname; | |
1786 | struct powerpc_stub *item; | |
1787 | ||
1788 | sym = (*symbols_ptr)[i]; | |
1789 | ||
1790 | /* We must make a stub for every undefined symbol whose name | |
1791 | starts with '.'. */ | |
1792 | if (bfd_asymbol_name (sym)[0] != '.' | |
a18ff4a7 | 1793 | || ! bfd_is_und_section (bfd_get_section (sym))) |
4bd7a65f ILT |
1794 | continue; |
1795 | ||
1796 | /* Make a new undefined symbol with the same name but without | |
1797 | the leading `.'. */ | |
1798 | newsym = (asymbol *) xmalloc (sizeof (asymbol)); | |
1799 | *newsym = *sym; | |
1800 | newname = (char *) xmalloc (strlen (bfd_asymbol_name (sym))); | |
1801 | strcpy (newname, bfd_asymbol_name (sym) + 1); | |
1802 | newsym->name = newname; | |
1803 | ||
1804 | /* Define the `.' symbol to be in the stub section. */ | |
1805 | sym->section = stub_sec; | |
1806 | sym->value = stubcount * POWERPC_STUB_SIZE; | |
ae5d2ff5 ILT |
1807 | /* We set the BSF_DYNAMIC flag here so that we can check it when |
1808 | we are mangling relocs. FIXME: This is a hack. */ | |
1809 | sym->flags = BSF_LOCAL | BSF_DYNAMIC; | |
4bd7a65f ILT |
1810 | |
1811 | /* Add this stub to the linked list. */ | |
1812 | item = (struct powerpc_stub *) xmalloc (sizeof (struct powerpc_stub)); | |
1813 | item->start = sym; | |
1814 | item->reloc = newsym; | |
1815 | item->toc_index = got_base + stubcount * POWERPC_STUB_TOC_ENTRY_SIZE; | |
1816 | ||
1817 | item->next = powerpc_stubs; | |
1818 | powerpc_stubs = item; | |
1819 | ||
1820 | ++stubcount; | |
1821 | } | |
1822 | ||
1823 | if (stubcount > 0) | |
1824 | { | |
1825 | asymbol **s; | |
1826 | struct powerpc_stub *l; | |
1827 | ||
1828 | /* Add the new symbols we just created to the symbol table. */ | |
1829 | *symbols_ptr = (asymbol **) xrealloc ((char *) *symbols_ptr, | |
1830 | ((symcount + stubcount) | |
1831 | * sizeof (asymbol))); | |
1832 | *symcount_ptr += stubcount; | |
1833 | s = &(*symbols_ptr)[symcount]; | |
1834 | for (l = powerpc_stubs; l != (struct powerpc_stub *) NULL; l = l->next) | |
1835 | *s++ = l->reloc; | |
1836 | ||
1837 | /* Set the size of the .stubs section and increase the size of | |
1838 | the .got section. */ | |
1839 | if (! bfd_set_section_size (inbfd, stub_sec, | |
1840 | stubcount * POWERPC_STUB_SIZE) | |
1841 | || ! bfd_set_section_size (inbfd, got_sec, | |
1842 | (got_base | |
1843 | + (stubcount | |
1844 | * POWERPC_STUB_TOC_ENTRY_SIZE)))) | |
1845 | bfd_fatal ("stub section sizes"); | |
1846 | } | |
1847 | } | |
1848 | ||
1849 | /* Resolve all the stubs for PowerPC NetWare. We fill in the contents | |
1850 | of the output section, and create new relocs in the TOC. */ | |
1851 | ||
1852 | static void | |
1853 | powerpc_resolve_stubs (inbfd, outbfd) | |
1854 | bfd *inbfd; | |
1855 | bfd *outbfd; | |
1856 | { | |
1857 | bfd_byte buf[POWERPC_STUB_SIZE]; | |
1858 | unsigned int i; | |
1859 | unsigned int stubcount; | |
1860 | arelent **relocs; | |
1861 | asection *got_sec; | |
1862 | arelent **r; | |
1863 | struct powerpc_stub *l; | |
1864 | ||
1865 | if (powerpc_stubs == (struct powerpc_stub *) NULL) | |
1866 | return; | |
1867 | ||
1868 | for (i = 0; i < POWERPC_STUB_INSN_COUNT; i++) | |
1869 | bfd_put_32 (outbfd, (bfd_vma) powerpc_stub_insns[i], buf + i * 4); | |
1870 | ||
1871 | got_sec = bfd_get_section_by_name (inbfd, ".got"); | |
1872 | assert (got_sec != (asection *) NULL); | |
1873 | assert (got_sec->output_section->orelocation == (arelent **) NULL); | |
1874 | ||
1875 | stubcount = 0; | |
1876 | for (l = powerpc_stubs; l != (struct powerpc_stub *) NULL; l = l->next) | |
1877 | ++stubcount; | |
1878 | relocs = (arelent **) xmalloc (stubcount * sizeof (arelent *)); | |
1879 | ||
1880 | r = relocs; | |
1881 | for (l = powerpc_stubs; l != (struct powerpc_stub *) NULL; l = l->next) | |
1882 | { | |
1883 | arelent *reloc; | |
1884 | ||
1885 | /* Adjust the first instruction to use the right TOC index. */ | |
1886 | bfd_put_32 (outbfd, (bfd_vma) powerpc_stub_insns[0] + l->toc_index, buf); | |
1887 | ||
1888 | /* Write this stub out. */ | |
1889 | if (! bfd_set_section_contents (outbfd, | |
1890 | bfd_get_section (l->start), | |
1891 | buf, | |
1892 | l->start->value, | |
1893 | POWERPC_STUB_SIZE)) | |
1894 | bfd_fatal ("writing stub"); | |
1895 | ||
1896 | /* Create a new reloc for the TOC entry. */ | |
1897 | reloc = (arelent *) xmalloc (sizeof (arelent)); | |
1898 | reloc->sym_ptr_ptr = &l->reloc; | |
1899 | reloc->address = l->toc_index + got_sec->output_offset; | |
1900 | reloc->addend = 0; | |
1901 | reloc->howto = bfd_reloc_type_lookup (inbfd, BFD_RELOC_32); | |
1902 | ||
1903 | *r++ = reloc; | |
1904 | } | |
1905 | ||
1906 | bfd_set_reloc (outbfd, got_sec->output_section, relocs, stubcount); | |
1907 | } | |
1908 | ||
1909 | /* Adjust relocation entries for PowerPC NetWare. We do not output | |
1910 | TOC relocations. The object code already contains the offset from | |
1911 | the TOC pointer. When the function is called, the TOC register, | |
1912 | r2, will be set to the correct TOC value, so there is no need for | |
1913 | any further reloc. */ | |
1914 | ||
1915 | /*ARGSUSED*/ | |
1916 | static void | |
1917 | powerpc_mangle_relocs (outbfd, insec, relocs_ptr, reloc_count_ptr, contents, | |
1918 | contents_size) | |
1919 | bfd *outbfd; | |
1920 | asection *insec; | |
1921 | register arelent ***relocs_ptr; | |
ae5d2ff5 | 1922 | long *reloc_count_ptr; |
4bd7a65f ILT |
1923 | char *contents; |
1924 | bfd_size_type contents_size; | |
1925 | { | |
1d1a5a53 | 1926 | reloc_howto_type *toc_howto; |
ae5d2ff5 | 1927 | long reloc_count; |
4bd7a65f | 1928 | register arelent **relocs; |
ae5d2ff5 | 1929 | register long i; |
4bd7a65f ILT |
1930 | |
1931 | toc_howto = bfd_reloc_type_lookup (insec->owner, BFD_RELOC_PPC_TOC16); | |
1932 | if (toc_howto == (reloc_howto_type *) NULL) | |
1933 | abort (); | |
1934 | ||
1935 | /* If this is the .got section, clear out all the contents beyond | |
1936 | the initial size. We must do this here because copy_sections is | |
1937 | going to write out whatever we return in the contents field. */ | |
1938 | if (strcmp (bfd_get_section_name (insec->owner, insec), ".got") == 0) | |
1939 | memset (contents + powerpc_initial_got_size, 0, | |
1d1a5a53 ILT |
1940 | (size_t) (bfd_get_section_size_after_reloc (insec) |
1941 | - powerpc_initial_got_size)); | |
4bd7a65f ILT |
1942 | |
1943 | reloc_count = *reloc_count_ptr; | |
1944 | relocs = *relocs_ptr; | |
1945 | for (i = 0; i < reloc_count; i++) | |
1946 | { | |
1947 | arelent *rel; | |
1948 | asymbol *sym; | |
1d1a5a53 | 1949 | bfd_vma sym_value; |
4bd7a65f ILT |
1950 | |
1951 | rel = *relocs++; | |
1952 | sym = *rel->sym_ptr_ptr; | |
1953 | ||
1d1a5a53 ILT |
1954 | /* Convert any relocs against the .bss section into relocs |
1955 | against the .data section. */ | |
1956 | if (strcmp (bfd_get_section_name (outbfd, bfd_get_section (sym)), | |
1957 | NLM_UNINITIALIZED_DATA_NAME) == 0) | |
1958 | { | |
1959 | asection *datasec; | |
1960 | ||
1961 | datasec = bfd_get_section_by_name (outbfd, | |
1962 | NLM_INITIALIZED_DATA_NAME); | |
1963 | if (datasec != NULL) | |
1964 | { | |
1965 | rel->addend += (bfd_get_section_vma (outbfd, | |
1966 | bfd_get_section (sym)) | |
1967 | + sym->value); | |
1968 | rel->sym_ptr_ptr = datasec->symbol_ptr_ptr; | |
1969 | sym = *rel->sym_ptr_ptr; | |
1970 | } | |
1971 | } | |
1972 | ||
4bd7a65f ILT |
1973 | /* We must be able to resolve all PC relative relocs at this |
1974 | point. If we get a branch to an undefined symbol we build a | |
1975 | stub, since NetWare will resolve undefined symbols into a | |
1976 | pointer to a function descriptor. */ | |
1977 | if (rel->howto->pc_relative) | |
1978 | { | |
1979 | /* This check for whether a symbol is in the same section as | |
1980 | the reloc will be wrong if there is a PC relative reloc | |
1981 | between two sections both of which were placed in the | |
1982 | same output section. This should not happen. */ | |
1983 | if (bfd_get_section (sym) != insec->output_section) | |
1984 | fprintf (stderr, "%s: unresolved PC relative reloc against %s\n", | |
1985 | program_name, bfd_asymbol_name (sym)); | |
1986 | else | |
1987 | { | |
1988 | bfd_vma val; | |
1989 | ||
1990 | assert (rel->howto->size == 2 && rel->howto->pcrel_offset); | |
1991 | val = bfd_get_32 (outbfd, (bfd_byte *) contents + rel->address); | |
1992 | val = ((val &~ rel->howto->dst_mask) | |
1993 | | (((val & rel->howto->src_mask) | |
1994 | + (sym->value - rel->address) | |
1995 | + rel->addend) | |
1996 | & rel->howto->dst_mask)); | |
1997 | bfd_put_32 (outbfd, val, (bfd_byte *) contents + rel->address); | |
1998 | ||
ae5d2ff5 ILT |
1999 | /* If this reloc is against an stubbed symbol and the |
2000 | next instruction is | |
4bd7a65f ILT |
2001 | cror 31,31,31 |
2002 | then we replace the next instruction with | |
2003 | lwz r2,20(r1) | |
ae5d2ff5 | 2004 | This reloads the TOC pointer after a stub call. */ |
4bd7a65f | 2005 | if (bfd_asymbol_name (sym)[0] == '.' |
ae5d2ff5 | 2006 | && (sym->flags & BSF_DYNAMIC) != 0 |
4bd7a65f ILT |
2007 | && (bfd_get_32 (outbfd, |
2008 | (bfd_byte *) contents + rel->address + 4) | |
2009 | == 0x4ffffb82)) /* cror 31,31,31 */ | |
2010 | bfd_put_32 (outbfd, (bfd_vma) 0x80410014, /* lwz r2,20(r1) */ | |
2011 | (bfd_byte *) contents + rel->address + 4); | |
2012 | ||
2013 | --*reloc_count_ptr; | |
2014 | --relocs; | |
2015 | memmove (relocs, relocs + 1, | |
2016 | (size_t) ((reloc_count - 1) * sizeof (arelent *))); | |
2017 | continue; | |
2018 | } | |
2019 | } | |
2020 | ||
2021 | /* When considering a TOC reloc, we do not want to include the | |
2022 | symbol value. The symbol will be start of the TOC section | |
2023 | (which is named .got). We do want to include the addend. */ | |
2024 | if (rel->howto == toc_howto) | |
1d1a5a53 | 2025 | sym_value = 0; |
4bd7a65f | 2026 | else |
1d1a5a53 | 2027 | sym_value = sym->value; |
4bd7a65f ILT |
2028 | |
2029 | /* If this is a relocation against a symbol with a value, or | |
2030 | there is a reloc addend, we need to update the addend in the | |
2031 | object file. */ | |
1d1a5a53 | 2032 | if (sym_value + rel->addend != 0) |
4bd7a65f ILT |
2033 | { |
2034 | bfd_vma val; | |
2035 | ||
2036 | switch (rel->howto->size) | |
2037 | { | |
2038 | case 1: | |
2039 | val = bfd_get_16 (outbfd, | |
2040 | (bfd_byte *) contents + rel->address); | |
2041 | val = ((val &~ rel->howto->dst_mask) | |
2042 | | (((val & rel->howto->src_mask) | |
1d1a5a53 | 2043 | + sym_value |
4bd7a65f ILT |
2044 | + rel->addend) |
2045 | & rel->howto->dst_mask)); | |
2046 | if ((bfd_signed_vma) val < - 0x8000 | |
2047 | || (bfd_signed_vma) val >= 0x8000) | |
2048 | fprintf (stderr, | |
2049 | "%s: overflow when adjusting relocation against %s\n", | |
2050 | program_name, bfd_asymbol_name (sym)); | |
2051 | bfd_put_16 (outbfd, val, (bfd_byte *) contents + rel->address); | |
2052 | break; | |
2053 | ||
2054 | case 2: | |
2055 | val = bfd_get_32 (outbfd, | |
2056 | (bfd_byte *) contents + rel->address); | |
2057 | val = ((val &~ rel->howto->dst_mask) | |
2058 | | (((val & rel->howto->src_mask) | |
1d1a5a53 | 2059 | + sym_value |
4bd7a65f ILT |
2060 | + rel->addend) |
2061 | & rel->howto->dst_mask)); | |
2062 | bfd_put_32 (outbfd, val, (bfd_byte *) contents + rel->address); | |
2063 | break; | |
2064 | ||
2065 | default: | |
2066 | abort (); | |
2067 | } | |
2068 | ||
1d1a5a53 ILT |
2069 | if (! bfd_is_und_section (bfd_get_section (sym))) |
2070 | rel->sym_ptr_ptr = bfd_get_section (sym)->symbol_ptr_ptr; | |
4bd7a65f ILT |
2071 | rel->addend = 0; |
2072 | } | |
2073 | ||
2074 | /* Now that we have incorporated the addend, remove any TOC | |
2075 | relocs. */ | |
2076 | if (rel->howto == toc_howto) | |
2077 | { | |
2078 | --*reloc_count_ptr; | |
2079 | --relocs; | |
2080 | memmove (relocs, relocs + 1, | |
2081 | (size_t) ((reloc_count - i) * sizeof (arelent *))); | |
2082 | continue; | |
2083 | } | |
2084 | ||
2085 | rel->address += insec->output_offset; | |
2086 | } | |
2087 | } | |
9d11577a ILT |
2088 | |
2089 | #endif /* NLMCONV_POWERPC */ | |
0f6df2ee ILT |
2090 | \f |
2091 | /* Name of linker. */ | |
2092 | #ifndef LD_NAME | |
2093 | #define LD_NAME "ld" | |
2094 | #endif | |
2095 | ||
2096 | /* Temporary file name base. */ | |
2097 | static char *temp_filename; | |
2098 | ||
2099 | /* The user has specified several input files. Invoke the linker to | |
2100 | link them all together, and convert and delete the resulting output | |
2101 | file. */ | |
2102 | ||
2103 | static char * | |
2104 | link_inputs (inputs, ld) | |
2105 | struct string_list *inputs; | |
2106 | char *ld; | |
2107 | { | |
2108 | size_t c; | |
2109 | struct string_list *q; | |
2110 | char **argv; | |
2111 | size_t i; | |
2112 | int pid; | |
2113 | int status; | |
1d1a5a53 ILT |
2114 | char *errfmt; |
2115 | char *errarg; | |
0f6df2ee ILT |
2116 | |
2117 | c = 0; | |
2118 | for (q = inputs; q != NULL; q = q->next) | |
2119 | ++c; | |
2120 | ||
1d1a5a53 | 2121 | argv = (char **) alloca ((c + 5) * sizeof(char *)); |
0f6df2ee ILT |
2122 | |
2123 | #ifndef __MSDOS__ | |
2124 | if (ld == NULL) | |
2125 | { | |
2126 | char *p; | |
2127 | ||
2128 | /* Find the linker to invoke based on how nlmconv was run. */ | |
2129 | p = program_name + strlen (program_name); | |
2130 | while (p != program_name) | |
2131 | { | |
2132 | if (p[-1] == '/') | |
2133 | { | |
2134 | ld = (char *) xmalloc (p - program_name + strlen (LD_NAME) + 1); | |
2135 | memcpy (ld, program_name, p - program_name); | |
2136 | strcpy (ld + (p - program_name), LD_NAME); | |
2137 | break; | |
2138 | } | |
2139 | --p; | |
2140 | } | |
2141 | } | |
2142 | #endif | |
2143 | ||
2144 | if (ld == NULL) | |
2145 | ld = (char *) LD_NAME; | |
2146 | ||
1d1a5a53 | 2147 | temp_filename = choose_temp_base (); |
0f6df2ee ILT |
2148 | |
2149 | unlink_on_exit = xmalloc (strlen (temp_filename) + 3); | |
2150 | sprintf (unlink_on_exit, "%s.O", temp_filename); | |
2151 | ||
2152 | argv[0] = ld; | |
1d1a5a53 | 2153 | argv[1] = (char *) "-Ur"; |
0f6df2ee ILT |
2154 | argv[2] = (char *) "-o"; |
2155 | argv[3] = unlink_on_exit; | |
2156 | i = 4; | |
2157 | for (q = inputs; q != NULL; q = q->next, i++) | |
2158 | argv[i] = q->string; | |
2159 | argv[i] = NULL; | |
2160 | ||
2161 | if (debug) | |
2162 | { | |
2163 | for (i = 0; argv[i] != NULL; i++) | |
2164 | fprintf (stderr, " %s", argv[i]); | |
2165 | fprintf (stderr, "\n"); | |
2166 | } | |
2167 | ||
1d1a5a53 ILT |
2168 | pid = pexecute (ld, argv, program_name, (char *) NULL, &errfmt, &errarg, |
2169 | PEXECUTE_SEARCH | PEXECUTE_ONE); | |
2170 | if (pid == -1) | |
0f6df2ee | 2171 | { |
1d1a5a53 ILT |
2172 | fprintf (stderr, "%s: execution of %s failed: ", program_name, ld); |
2173 | fprintf (stderr, errfmt, errarg); | |
0f6df2ee ILT |
2174 | unlink (unlink_on_exit); |
2175 | exit (1); | |
2176 | } | |
2177 | ||
1d1a5a53 | 2178 | if (pwait (pid, &status, 0) < 0) |
0f6df2ee | 2179 | { |
1d1a5a53 | 2180 | perror ("pwait"); |
0f6df2ee ILT |
2181 | unlink (unlink_on_exit); |
2182 | exit (1); | |
2183 | } | |
2184 | ||
1d1a5a53 | 2185 | if (status != 0) |
0f6df2ee | 2186 | { |
1d1a5a53 ILT |
2187 | fprintf (stderr, "%s: Execution of %s failed\n", program_name, ld); |
2188 | unlink (unlink_on_exit); | |
0f6df2ee | 2189 | exit (1); |
0f6df2ee | 2190 | } |
0f6df2ee | 2191 | |
1d1a5a53 | 2192 | return unlink_on_exit; |
0f6df2ee | 2193 | } |