Commit | Line | Data |
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252b5132 | 1 | /* nlmconv.c -- NLM conversion program |
135dfb4a | 2 | Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, |
92f01d61 | 3 | 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc. |
252b5132 | 4 | |
8b53311e | 5 | This file is part of GNU Binutils. |
252b5132 | 6 | |
8b53311e NC |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
32866df7 | 9 | the Free Software Foundation; either version 3 of the License, or |
8b53311e | 10 | (at your option) any later version. |
252b5132 | 11 | |
8b53311e NC |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
252b5132 | 16 | |
8b53311e NC |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software | |
32866df7 NC |
19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
20 | MA 02110-1301, USA. */ | |
21 | ||
252b5132 RH |
22 | |
23 | /* Written by Ian Lance Taylor <ian@cygnus.com>. | |
24 | ||
25 | This program can be used to convert any appropriate object file | |
26 | into a NetWare Loadable Module (an NLM). It will accept a linker | |
27 | specification file which is identical to that accepted by the | |
28 | NetWare linker, NLMLINK. */ | |
29 | ||
30 | /* AIX requires this to be the first thing in the file. */ | |
31 | #ifndef __GNUC__ | |
32 | # ifdef _AIX | |
33 | #pragma alloca | |
34 | #endif | |
35 | #endif | |
36 | ||
3db64b00 | 37 | #include "sysdep.h" |
252b5132 RH |
38 | #include "bfd.h" |
39 | #include "libiberty.h" | |
3882b010 | 40 | #include "safe-ctype.h" |
252b5132 | 41 | |
e9792343 | 42 | #include "ansidecl.h" |
252b5132 | 43 | #include <time.h> |
252b5132 RH |
44 | #include <sys/stat.h> |
45 | #include <sys/file.h> | |
46 | #include <assert.h> | |
e9792343 | 47 | #include "getopt.h" |
252b5132 RH |
48 | |
49 | /* Internal BFD NLM header. */ | |
50 | #include "libnlm.h" | |
51 | #include "nlmconv.h" | |
52 | ||
53 | #ifdef NLMCONV_ALPHA | |
54 | #include "coff/sym.h" | |
55 | #include "coff/ecoff.h" | |
56 | #endif | |
57 | ||
3db64b00 AM |
58 | #include "bucomm.h" |
59 | ||
252b5132 RH |
60 | /* If strerror is just a macro, we want to use the one from libiberty |
61 | since it will handle undefined values. */ | |
62 | #undef strerror | |
2da42df6 | 63 | extern char *strerror (int); |
252b5132 | 64 | |
252b5132 RH |
65 | #ifndef SEEK_SET |
66 | #define SEEK_SET 0 | |
67 | #endif | |
68 | ||
69 | #ifndef R_OK | |
70 | #define R_OK 4 | |
71 | #define W_OK 2 | |
72 | #define X_OK 1 | |
73 | #endif | |
74 | \f | |
75 | /* Global variables. */ | |
76 | ||
77 | /* The name used to invoke the program. */ | |
78 | char *program_name; | |
79 | ||
80 | /* Local variables. */ | |
81 | ||
82 | /* Whether to print out debugging information (currently just controls | |
83 | whether it prints the linker command if there is one). */ | |
84 | static int debug; | |
85 | ||
86 | /* The symbol table. */ | |
87 | static asymbol **symbols; | |
88 | ||
89 | /* A section we create in the output file to hold pointers to where | |
90 | the sections of the input file end up. We will put a pointer to | |
91 | this section in the NLM header. These is an entry for each input | |
92 | section. The format is | |
93 | null terminated section name | |
94 | zeroes to adjust to 4 byte boundary | |
95 | 4 byte section data file pointer | |
96 | 4 byte section size | |
97 | We don't need a version number. The way we find this information | |
98 | is by finding a stamp in the NLM header information. If we need to | |
99 | change the format of this information, we can simply change the | |
100 | stamp. */ | |
101 | static asection *secsec; | |
102 | ||
103 | /* A temporary file name to be unlinked on exit. Actually, for most | |
104 | errors, we leave it around. It's not clear whether that is helpful | |
105 | or not. */ | |
106 | static char *unlink_on_exit; | |
107 | ||
108 | /* The list of long options. */ | |
109 | static struct option long_options[] = | |
110 | { | |
111 | { "debug", no_argument, 0, 'd' }, | |
112 | { "header-file", required_argument, 0, 'T' }, | |
113 | { "help", no_argument, 0, 'h' }, | |
114 | { "input-target", required_argument, 0, 'I' }, | |
115 | { "input-format", required_argument, 0, 'I' }, /* Obsolete */ | |
116 | { "linker", required_argument, 0, 'l' }, | |
117 | { "output-target", required_argument, 0, 'O' }, | |
118 | { "output-format", required_argument, 0, 'O' }, /* Obsolete */ | |
119 | { "version", no_argument, 0, 'V' }, | |
120 | { NULL, no_argument, 0, 0 } | |
121 | }; | |
122 | ||
123 | /* Local routines. */ | |
124 | ||
2da42df6 | 125 | int main (int, char **); |
408f8db1 | 126 | |
2da42df6 | 127 | static void show_usage (FILE *, int); |
b34976b6 | 128 | static const char *select_output_format |
2da42df6 AJ |
129 | (enum bfd_architecture, unsigned long, bfd_boolean); |
130 | static void setup_sections (bfd *, asection *, void *); | |
131 | static void copy_sections (bfd *, asection *, void *); | |
b34976b6 | 132 | static void mangle_relocs |
2da42df6 | 133 | (bfd *, asection *, arelent ***, long *, char *, bfd_size_type); |
b34976b6 | 134 | static void default_mangle_relocs |
2da42df6 | 135 | (bfd *, asection *, arelent ***, long *, char *, bfd_size_type); |
44a6d974 | 136 | static char *link_inputs (struct string_list *, char *, char *); |
252b5132 RH |
137 | |
138 | #ifdef NLMCONV_I386 | |
2da42df6 | 139 | static void i386_mangle_relocs (bfd *, asection *, arelent ***, long *, char *, bfd_size_type); |
252b5132 RH |
140 | #endif |
141 | ||
142 | #ifdef NLMCONV_ALPHA | |
2da42df6 | 143 | static void alpha_mangle_relocs (bfd *, asection *, arelent ***, long *, char *, bfd_size_type); |
252b5132 RH |
144 | #endif |
145 | ||
146 | #ifdef NLMCONV_POWERPC | |
2da42df6 AJ |
147 | static void powerpc_build_stubs (bfd *, bfd *, asymbol ***, long *); |
148 | static void powerpc_resolve_stubs (bfd *, bfd *); | |
149 | static void powerpc_mangle_relocs (bfd *, asection *, arelent ***, long *, char *, bfd_size_type); | |
252b5132 RH |
150 | #endif |
151 | \f | |
152 | /* The main routine. */ | |
153 | ||
154 | int | |
2da42df6 | 155 | main (int argc, char **argv) |
252b5132 RH |
156 | { |
157 | int opt; | |
158 | char *input_file = NULL; | |
159 | const char *input_format = NULL; | |
160 | const char *output_format = NULL; | |
161 | const char *header_file = NULL; | |
162 | char *ld_arg = NULL; | |
163 | Nlm_Internal_Fixed_Header fixed_hdr_struct; | |
164 | Nlm_Internal_Variable_Header var_hdr_struct; | |
165 | Nlm_Internal_Version_Header version_hdr_struct; | |
166 | Nlm_Internal_Copyright_Header copyright_hdr_struct; | |
167 | Nlm_Internal_Extended_Header extended_hdr_struct; | |
168 | bfd *inbfd; | |
169 | bfd *outbfd; | |
170 | asymbol **newsyms, **outsyms; | |
171 | long symcount, newsymalloc, newsymcount; | |
172 | long symsize; | |
173 | asection *text_sec, *bss_sec, *data_sec; | |
174 | bfd_vma vma; | |
175 | bfd_size_type align; | |
176 | asymbol *endsym; | |
177 | long i; | |
178 | char inlead, outlead; | |
b34976b6 | 179 | bfd_boolean gotstart, gotexit, gotcheck; |
252b5132 RH |
180 | struct stat st; |
181 | FILE *custom_data = NULL; | |
182 | FILE *help_data = NULL; | |
183 | FILE *message_data = NULL; | |
184 | FILE *rpc_data = NULL; | |
185 | FILE *shared_data = NULL; | |
186 | size_t custom_size = 0; | |
187 | size_t help_size = 0; | |
188 | size_t message_size = 0; | |
189 | size_t module_size = 0; | |
190 | size_t rpc_size = 0; | |
191 | asection *custom_section = NULL; | |
192 | asection *help_section = NULL; | |
193 | asection *message_section = NULL; | |
194 | asection *module_section = NULL; | |
195 | asection *rpc_section = NULL; | |
196 | asection *shared_section = NULL; | |
197 | bfd *sharedbfd; | |
198 | size_t shared_offset = 0; | |
199 | size_t shared_size = 0; | |
dc3c06c2 | 200 | static Nlm_Internal_Fixed_Header sharedhdr; |
252b5132 RH |
201 | int len; |
202 | char *modname; | |
203 | char **matching; | |
204 | ||
205 | #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES) | |
206 | setlocale (LC_MESSAGES, ""); | |
3882b010 L |
207 | #endif |
208 | #if defined (HAVE_SETLOCALE) | |
209 | setlocale (LC_CTYPE, ""); | |
252b5132 RH |
210 | #endif |
211 | bindtextdomain (PACKAGE, LOCALEDIR); | |
212 | textdomain (PACKAGE); | |
213 | ||
214 | program_name = argv[0]; | |
215 | xmalloc_set_program_name (program_name); | |
216 | ||
869b9d07 MM |
217 | expandargv (&argc, &argv); |
218 | ||
252b5132 RH |
219 | bfd_init (); |
220 | set_default_bfd_target (); | |
221 | ||
8b53311e | 222 | while ((opt = getopt_long (argc, argv, "dHhI:l:O:T:Vv", long_options, |
252b5132 RH |
223 | (int *) NULL)) |
224 | != EOF) | |
225 | { | |
226 | switch (opt) | |
227 | { | |
228 | case 'd': | |
229 | debug = 1; | |
230 | break; | |
8b53311e | 231 | case 'H': |
252b5132 | 232 | case 'h': |
8b53311e NC |
233 | show_usage (stdout, 0); |
234 | break; | |
252b5132 RH |
235 | case 'I': |
236 | input_format = optarg; | |
237 | break; | |
238 | case 'l': | |
239 | ld_arg = optarg; | |
240 | break; | |
241 | case 'O': | |
242 | output_format = optarg; | |
243 | break; | |
244 | case 'T': | |
245 | header_file = optarg; | |
246 | break; | |
8b53311e | 247 | case 'v': |
252b5132 RH |
248 | case 'V': |
249 | print_version ("nlmconv"); | |
8b53311e | 250 | break; |
252b5132 RH |
251 | case 0: |
252 | break; | |
253 | default: | |
254 | show_usage (stderr, 1); | |
8b53311e | 255 | break; |
252b5132 RH |
256 | } |
257 | } | |
258 | ||
259 | /* The input and output files may be named on the command line. */ | |
260 | output_file = NULL; | |
261 | if (optind < argc) | |
262 | { | |
263 | input_file = argv[optind]; | |
264 | ++optind; | |
265 | if (optind < argc) | |
266 | { | |
267 | output_file = argv[optind]; | |
268 | ++optind; | |
269 | if (optind < argc) | |
270 | show_usage (stderr, 1); | |
271 | if (strcmp (input_file, output_file) == 0) | |
272 | { | |
37cc8ec1 | 273 | fatal (_("input and output files must be different")); |
252b5132 RH |
274 | } |
275 | } | |
276 | } | |
277 | ||
278 | /* Initialize the header information to default values. */ | |
279 | fixed_hdr = &fixed_hdr_struct; | |
2da42df6 | 280 | memset ((void *) &fixed_hdr_struct, 0, sizeof fixed_hdr_struct); |
252b5132 | 281 | var_hdr = &var_hdr_struct; |
2da42df6 | 282 | memset ((void *) &var_hdr_struct, 0, sizeof var_hdr_struct); |
252b5132 | 283 | version_hdr = &version_hdr_struct; |
2da42df6 | 284 | memset ((void *) &version_hdr_struct, 0, sizeof version_hdr_struct); |
252b5132 | 285 | copyright_hdr = ©right_hdr_struct; |
2da42df6 | 286 | memset ((void *) ©right_hdr_struct, 0, sizeof copyright_hdr_struct); |
252b5132 | 287 | extended_hdr = &extended_hdr_struct; |
2da42df6 | 288 | memset ((void *) &extended_hdr_struct, 0, sizeof extended_hdr_struct); |
252b5132 RH |
289 | check_procedure = NULL; |
290 | custom_file = NULL; | |
b34976b6 | 291 | debug_info = FALSE; |
252b5132 RH |
292 | exit_procedure = "_Stop"; |
293 | export_symbols = NULL; | |
294 | map_file = NULL; | |
b34976b6 | 295 | full_map = FALSE; |
252b5132 RH |
296 | help_file = NULL; |
297 | import_symbols = NULL; | |
298 | message_file = NULL; | |
299 | modules = NULL; | |
300 | sharelib_file = NULL; | |
301 | start_procedure = "_Prelude"; | |
b34976b6 | 302 | verbose = FALSE; |
252b5132 RH |
303 | rpc_file = NULL; |
304 | ||
305 | parse_errors = 0; | |
306 | ||
307 | /* Parse the header file (if there is one). */ | |
308 | if (header_file != NULL) | |
309 | { | |
310 | if (! nlmlex_file (header_file) | |
311 | || yyparse () != 0 | |
312 | || parse_errors != 0) | |
313 | exit (1); | |
314 | } | |
315 | ||
316 | if (input_files != NULL) | |
317 | { | |
318 | if (input_file != NULL) | |
319 | { | |
37cc8ec1 | 320 | fatal (_("input file named both on command line and with INPUT")); |
252b5132 RH |
321 | } |
322 | if (input_files->next == NULL) | |
323 | input_file = input_files->string; | |
324 | else | |
44a6d974 | 325 | input_file = link_inputs (input_files, ld_arg, map_file); |
252b5132 RH |
326 | } |
327 | else if (input_file == NULL) | |
328 | { | |
37cc8ec1 | 329 | non_fatal (_("no input file")); |
252b5132 RH |
330 | show_usage (stderr, 1); |
331 | } | |
332 | ||
333 | inbfd = bfd_openr (input_file, input_format); | |
334 | if (inbfd == NULL) | |
335 | bfd_fatal (input_file); | |
336 | ||
337 | if (! bfd_check_format_matches (inbfd, bfd_object, &matching)) | |
338 | { | |
339 | bfd_nonfatal (input_file); | |
340 | if (bfd_get_error () == bfd_error_file_ambiguously_recognized) | |
341 | { | |
342 | list_matching_formats (matching); | |
343 | free (matching); | |
344 | } | |
345 | exit (1); | |
346 | } | |
347 | ||
348 | if (output_format == NULL) | |
349 | output_format = select_output_format (bfd_get_arch (inbfd), | |
350 | bfd_get_mach (inbfd), | |
351 | bfd_big_endian (inbfd)); | |
352 | ||
353 | assert (output_format != NULL); | |
354 | ||
355 | /* Use the output file named on the command line if it exists. | |
356 | Otherwise use the file named in the OUTPUT statement. */ | |
357 | if (output_file == NULL) | |
358 | { | |
37cc8ec1 | 359 | non_fatal (_("no name for output file")); |
252b5132 RH |
360 | show_usage (stderr, 1); |
361 | } | |
362 | ||
363 | outbfd = bfd_openw (output_file, output_format); | |
364 | if (outbfd == NULL) | |
365 | bfd_fatal (output_file); | |
366 | if (! bfd_set_format (outbfd, bfd_object)) | |
367 | bfd_fatal (output_file); | |
368 | ||
369 | assert (bfd_get_flavour (outbfd) == bfd_target_nlm_flavour); | |
370 | ||
312b768e NC |
371 | /* XXX: Should we accept the unknown bfd format here ? */ |
372 | if (bfd_arch_get_compatible (inbfd, outbfd, TRUE) == NULL) | |
37cc8ec1 | 373 | non_fatal (_("warning: input and output formats are not compatible")); |
252b5132 RH |
374 | |
375 | /* Move the values read from the command file into outbfd. */ | |
376 | *nlm_fixed_header (outbfd) = fixed_hdr_struct; | |
377 | *nlm_variable_header (outbfd) = var_hdr_struct; | |
378 | *nlm_version_header (outbfd) = version_hdr_struct; | |
379 | *nlm_copyright_header (outbfd) = copyright_hdr_struct; | |
380 | *nlm_extended_header (outbfd) = extended_hdr_struct; | |
381 | ||
382 | /* Start copying the input BFD to the output BFD. */ | |
383 | if (! bfd_set_file_flags (outbfd, bfd_get_file_flags (inbfd))) | |
384 | bfd_fatal (bfd_get_filename (outbfd)); | |
385 | ||
386 | symsize = bfd_get_symtab_upper_bound (inbfd); | |
387 | if (symsize < 0) | |
388 | bfd_fatal (input_file); | |
389 | symbols = (asymbol **) xmalloc (symsize); | |
390 | symcount = bfd_canonicalize_symtab (inbfd, symbols); | |
391 | if (symcount < 0) | |
392 | bfd_fatal (input_file); | |
393 | ||
394 | /* Make sure we have a .bss section. */ | |
395 | bss_sec = bfd_get_section_by_name (outbfd, NLM_UNINITIALIZED_DATA_NAME); | |
396 | if (bss_sec == NULL) | |
397 | { | |
398 | bss_sec = bfd_make_section (outbfd, NLM_UNINITIALIZED_DATA_NAME); | |
399 | if (bss_sec == NULL | |
400 | || ! bfd_set_section_flags (outbfd, bss_sec, SEC_ALLOC) | |
401 | || ! bfd_set_section_alignment (outbfd, bss_sec, 1)) | |
402 | bfd_fatal (_("make .bss section")); | |
403 | } | |
404 | ||
405 | /* We store the original section names in the .nlmsections section, | |
406 | so that programs which understand it can resurrect the original | |
407 | sections from the NLM. We will put a pointer to .nlmsections in | |
408 | the NLM header area. */ | |
409 | secsec = bfd_make_section (outbfd, ".nlmsections"); | |
410 | if (secsec == NULL) | |
411 | bfd_fatal (_("make .nlmsections section")); | |
412 | if (! bfd_set_section_flags (outbfd, secsec, SEC_HAS_CONTENTS)) | |
413 | bfd_fatal (_("set .nlmsections flags")); | |
414 | ||
415 | #ifdef NLMCONV_POWERPC | |
416 | /* For PowerPC NetWare we need to build stubs for calls to undefined | |
417 | symbols. Because each stub requires an entry in the TOC section | |
418 | which must be at the same location as other entries in the TOC | |
419 | section, we must do this before determining where the TOC section | |
420 | goes in setup_sections. */ | |
421 | if (bfd_get_arch (inbfd) == bfd_arch_powerpc) | |
422 | powerpc_build_stubs (inbfd, outbfd, &symbols, &symcount); | |
423 | #endif | |
424 | ||
425 | /* Set up the sections. */ | |
2da42df6 | 426 | bfd_map_over_sections (inbfd, setup_sections, (void *) outbfd); |
252b5132 RH |
427 | |
428 | text_sec = bfd_get_section_by_name (outbfd, NLM_CODE_NAME); | |
429 | ||
430 | /* The .bss section immediately follows the .data section. */ | |
431 | data_sec = bfd_get_section_by_name (outbfd, NLM_INITIALIZED_DATA_NAME); | |
432 | if (data_sec != NULL) | |
433 | { | |
434 | bfd_size_type add; | |
435 | ||
135dfb4a | 436 | vma = bfd_get_section_size (data_sec); |
252b5132 RH |
437 | align = 1 << bss_sec->alignment_power; |
438 | add = ((vma + align - 1) &~ (align - 1)) - vma; | |
439 | vma += add; | |
440 | if (! bfd_set_section_vma (outbfd, bss_sec, vma)) | |
441 | bfd_fatal (_("set .bss vma")); | |
442 | if (add != 0) | |
443 | { | |
444 | bfd_size_type data_size; | |
445 | ||
135dfb4a | 446 | data_size = bfd_get_section_size (data_sec); |
252b5132 RH |
447 | if (! bfd_set_section_size (outbfd, data_sec, data_size + add)) |
448 | bfd_fatal (_("set .data size")); | |
449 | } | |
450 | } | |
451 | ||
452 | /* Adjust symbol information. */ | |
453 | inlead = bfd_get_symbol_leading_char (inbfd); | |
454 | outlead = bfd_get_symbol_leading_char (outbfd); | |
b34976b6 AM |
455 | gotstart = FALSE; |
456 | gotexit = FALSE; | |
457 | gotcheck = FALSE; | |
252b5132 RH |
458 | newsymalloc = 10; |
459 | newsyms = (asymbol **) xmalloc (newsymalloc * sizeof (asymbol *)); | |
460 | newsymcount = 0; | |
461 | endsym = NULL; | |
462 | for (i = 0; i < symcount; i++) | |
463 | { | |
44a6d974 | 464 | asymbol *sym; |
252b5132 RH |
465 | |
466 | sym = symbols[i]; | |
467 | ||
468 | /* Add or remove a leading underscore. */ | |
469 | if (inlead != outlead) | |
470 | { | |
471 | if (inlead != '\0') | |
472 | { | |
473 | if (bfd_asymbol_name (sym)[0] == inlead) | |
474 | { | |
475 | if (outlead == '\0') | |
476 | ++sym->name; | |
477 | else | |
478 | { | |
479 | char *new; | |
480 | ||
481 | new = xmalloc (strlen (bfd_asymbol_name (sym)) + 1); | |
482 | new[0] = outlead; | |
483 | strcpy (new + 1, bfd_asymbol_name (sym) + 1); | |
484 | sym->name = new; | |
485 | } | |
486 | } | |
487 | } | |
488 | else | |
489 | { | |
490 | char *new; | |
491 | ||
492 | new = xmalloc (strlen (bfd_asymbol_name (sym)) + 2); | |
493 | new[0] = outlead; | |
494 | strcpy (new + 1, bfd_asymbol_name (sym)); | |
495 | sym->name = new; | |
496 | } | |
497 | } | |
498 | ||
499 | /* NLM's have an uninitialized data section, but they do not | |
500 | have a common section in the Unix sense. Move all common | |
501 | symbols into the .bss section, and mark them as exported. */ | |
502 | if (bfd_is_com_section (bfd_get_section (sym))) | |
503 | { | |
135dfb4a | 504 | bfd_vma size = sym->value; |
252b5132 RH |
505 | |
506 | sym->section = bss_sec; | |
135dfb4a AM |
507 | sym->value = bfd_get_section_size (bss_sec); |
508 | size += sym->value; | |
252b5132 | 509 | align = 1 << bss_sec->alignment_power; |
135dfb4a AM |
510 | size = (size + align - 1) & ~(align - 1); |
511 | bfd_set_section_size (outbfd, bss_sec, size); | |
252b5132 RH |
512 | sym->flags |= BSF_EXPORT | BSF_GLOBAL; |
513 | } | |
514 | else if (bfd_get_section (sym)->output_section != NULL) | |
515 | { | |
516 | /* Move the symbol into the output section. */ | |
517 | sym->value += bfd_get_section (sym)->output_offset; | |
518 | sym->section = bfd_get_section (sym)->output_section; | |
519 | /* This is no longer a section symbol. */ | |
520 | sym->flags &=~ BSF_SECTION_SYM; | |
521 | } | |
522 | ||
523 | /* Force _edata and _end to be defined. This would normally be | |
524 | done by the linker, but the manipulation of the common | |
525 | symbols will confuse it. */ | |
526 | if ((sym->flags & BSF_DEBUGGING) == 0 | |
527 | && bfd_asymbol_name (sym)[0] == '_' | |
528 | && bfd_is_und_section (bfd_get_section (sym))) | |
529 | { | |
530 | if (strcmp (bfd_asymbol_name (sym), "_edata") == 0) | |
531 | { | |
532 | sym->section = bss_sec; | |
533 | sym->value = 0; | |
534 | } | |
535 | if (strcmp (bfd_asymbol_name (sym), "_end") == 0) | |
536 | { | |
537 | sym->section = bss_sec; | |
538 | endsym = sym; | |
539 | } | |
540 | ||
541 | #ifdef NLMCONV_POWERPC | |
542 | /* For PowerPC NetWare, we define __GOT0. This is the start | |
543 | of the .got section. */ | |
544 | if (bfd_get_arch (inbfd) == bfd_arch_powerpc | |
545 | && strcmp (bfd_asymbol_name (sym), "__GOT0") == 0) | |
546 | { | |
547 | asection *got_sec; | |
548 | ||
549 | got_sec = bfd_get_section_by_name (inbfd, ".got"); | |
550 | assert (got_sec != (asection *) NULL); | |
551 | sym->value = got_sec->output_offset; | |
552 | sym->section = got_sec->output_section; | |
553 | } | |
554 | #endif | |
0af11b59 | 555 | } |
252b5132 RH |
556 | |
557 | /* If this is a global symbol, check the export list. */ | |
558 | if ((sym->flags & (BSF_EXPORT | BSF_GLOBAL)) != 0) | |
559 | { | |
44a6d974 | 560 | struct string_list *l; |
252b5132 RH |
561 | int found_simple; |
562 | ||
563 | /* Unfortunately, a symbol can appear multiple times on the | |
564 | export list, with and without prefixes. */ | |
565 | found_simple = 0; | |
566 | for (l = export_symbols; l != NULL; l = l->next) | |
567 | { | |
568 | if (strcmp (l->string, bfd_asymbol_name (sym)) == 0) | |
569 | found_simple = 1; | |
570 | else | |
571 | { | |
572 | char *zbase; | |
573 | ||
574 | zbase = strchr (l->string, '@'); | |
575 | if (zbase != NULL | |
576 | && strcmp (zbase + 1, bfd_asymbol_name (sym)) == 0) | |
577 | { | |
578 | /* We must add a symbol with this prefix. */ | |
579 | if (newsymcount >= newsymalloc) | |
580 | { | |
581 | newsymalloc += 10; | |
582 | newsyms = ((asymbol **) | |
2da42df6 | 583 | xrealloc ((void *) newsyms, |
252b5132 RH |
584 | (newsymalloc |
585 | * sizeof (asymbol *)))); | |
586 | } | |
587 | newsyms[newsymcount] = | |
588 | (asymbol *) xmalloc (sizeof (asymbol)); | |
589 | *newsyms[newsymcount] = *sym; | |
590 | newsyms[newsymcount]->name = l->string; | |
591 | ++newsymcount; | |
592 | } | |
593 | } | |
594 | } | |
595 | if (! found_simple) | |
596 | { | |
597 | /* The unmodified symbol is actually not exported at | |
598 | all. */ | |
599 | sym->flags &=~ (BSF_GLOBAL | BSF_EXPORT); | |
600 | sym->flags |= BSF_LOCAL; | |
601 | } | |
602 | } | |
603 | ||
604 | /* If it's an undefined symbol, see if it's on the import list. | |
605 | Change the prefix if necessary. */ | |
606 | if (bfd_is_und_section (bfd_get_section (sym))) | |
607 | { | |
44a6d974 | 608 | struct string_list *l; |
252b5132 RH |
609 | |
610 | for (l = import_symbols; l != NULL; l = l->next) | |
611 | { | |
612 | if (strcmp (l->string, bfd_asymbol_name (sym)) == 0) | |
613 | break; | |
614 | else | |
615 | { | |
616 | char *zbase; | |
617 | ||
618 | zbase = strchr (l->string, '@'); | |
619 | if (zbase != NULL | |
620 | && strcmp (zbase + 1, bfd_asymbol_name (sym)) == 0) | |
621 | { | |
622 | sym->name = l->string; | |
623 | break; | |
624 | } | |
625 | } | |
626 | } | |
627 | if (l == NULL) | |
37cc8ec1 AM |
628 | non_fatal (_("warning: symbol %s imported but not in import list"), |
629 | bfd_asymbol_name (sym)); | |
252b5132 | 630 | } |
0af11b59 | 631 | |
252b5132 RH |
632 | /* See if it's one of the special named symbols. */ |
633 | if ((sym->flags & BSF_DEBUGGING) == 0) | |
634 | { | |
635 | bfd_vma val; | |
636 | ||
637 | /* FIXME: If these symbols are not in the .text section, we | |
638 | add the .text section size to the value. This may not be | |
639 | correct for all targets. I'm not sure how this should | |
640 | really be handled. */ | |
641 | if (strcmp (bfd_asymbol_name (sym), start_procedure) == 0) | |
642 | { | |
643 | val = bfd_asymbol_value (sym); | |
644 | if (bfd_get_section (sym) == data_sec | |
645 | && text_sec != (asection *) NULL) | |
646 | val += bfd_section_size (outbfd, text_sec); | |
647 | if (! bfd_set_start_address (outbfd, val)) | |
648 | bfd_fatal (_("set start address")); | |
b34976b6 | 649 | gotstart = TRUE; |
252b5132 RH |
650 | } |
651 | if (strcmp (bfd_asymbol_name (sym), exit_procedure) == 0) | |
652 | { | |
653 | val = bfd_asymbol_value (sym); | |
654 | if (bfd_get_section (sym) == data_sec | |
655 | && text_sec != (asection *) NULL) | |
656 | val += bfd_section_size (outbfd, text_sec); | |
657 | nlm_fixed_header (outbfd)->exitProcedureOffset = val; | |
b34976b6 | 658 | gotexit = TRUE; |
252b5132 RH |
659 | } |
660 | if (check_procedure != NULL | |
661 | && strcmp (bfd_asymbol_name (sym), check_procedure) == 0) | |
662 | { | |
663 | val = bfd_asymbol_value (sym); | |
664 | if (bfd_get_section (sym) == data_sec | |
665 | && text_sec != (asection *) NULL) | |
666 | val += bfd_section_size (outbfd, text_sec); | |
667 | nlm_fixed_header (outbfd)->checkUnloadProcedureOffset = val; | |
b34976b6 | 668 | gotcheck = TRUE; |
252b5132 RH |
669 | } |
670 | } | |
671 | } | |
672 | ||
673 | if (endsym != NULL) | |
674 | { | |
135dfb4a | 675 | endsym->value = bfd_get_section_size (bss_sec); |
252b5132 RH |
676 | |
677 | /* FIXME: If any relocs referring to _end use inplace addends, | |
678 | then I think they need to be updated. This is handled by | |
679 | i386_mangle_relocs. Is it needed for any other object | |
680 | formats? */ | |
681 | } | |
682 | ||
683 | if (newsymcount == 0) | |
684 | outsyms = symbols; | |
685 | else | |
686 | { | |
687 | outsyms = (asymbol **) xmalloc ((symcount + newsymcount + 1) | |
688 | * sizeof (asymbol *)); | |
689 | memcpy (outsyms, symbols, symcount * sizeof (asymbol *)); | |
690 | memcpy (outsyms + symcount, newsyms, newsymcount * sizeof (asymbol *)); | |
691 | outsyms[symcount + newsymcount] = NULL; | |
692 | } | |
693 | ||
694 | bfd_set_symtab (outbfd, outsyms, symcount + newsymcount); | |
0af11b59 | 695 | |
252b5132 | 696 | if (! gotstart) |
37cc8ec1 | 697 | non_fatal (_("warning: START procedure %s not defined"), start_procedure); |
252b5132 | 698 | if (! gotexit) |
37cc8ec1 AM |
699 | non_fatal (_("warning: EXIT procedure %s not defined"), exit_procedure); |
700 | if (check_procedure != NULL && ! gotcheck) | |
701 | non_fatal (_("warning: CHECK procedure %s not defined"), check_procedure); | |
252b5132 RH |
702 | |
703 | /* Add additional sections required for the header information. */ | |
704 | if (custom_file != NULL) | |
705 | { | |
706 | custom_data = fopen (custom_file, "r"); | |
707 | if (custom_data == NULL | |
708 | || fstat (fileno (custom_data), &st) < 0) | |
709 | { | |
710 | fprintf (stderr, "%s:%s: %s\n", program_name, custom_file, | |
711 | strerror (errno)); | |
712 | custom_file = NULL; | |
713 | } | |
714 | else | |
715 | { | |
716 | custom_size = st.st_size; | |
717 | custom_section = bfd_make_section (outbfd, ".nlmcustom"); | |
718 | if (custom_section == NULL | |
719 | || ! bfd_set_section_size (outbfd, custom_section, custom_size) | |
720 | || ! bfd_set_section_flags (outbfd, custom_section, | |
721 | SEC_HAS_CONTENTS)) | |
722 | bfd_fatal (_("custom section")); | |
723 | } | |
724 | } | |
725 | if (help_file != NULL) | |
726 | { | |
727 | help_data = fopen (help_file, "r"); | |
728 | if (help_data == NULL | |
729 | || fstat (fileno (help_data), &st) < 0) | |
730 | { | |
731 | fprintf (stderr, "%s:%s: %s\n", program_name, help_file, | |
732 | strerror (errno)); | |
733 | help_file = NULL; | |
734 | } | |
735 | else | |
736 | { | |
737 | help_size = st.st_size; | |
738 | help_section = bfd_make_section (outbfd, ".nlmhelp"); | |
739 | if (help_section == NULL | |
740 | || ! bfd_set_section_size (outbfd, help_section, help_size) | |
741 | || ! bfd_set_section_flags (outbfd, help_section, | |
742 | SEC_HAS_CONTENTS)) | |
743 | bfd_fatal (_("help section")); | |
ea9986ff | 744 | LITMEMCPY (nlm_extended_header (outbfd)->stamp, "MeSsAgEs"); |
252b5132 RH |
745 | } |
746 | } | |
747 | if (message_file != NULL) | |
748 | { | |
749 | message_data = fopen (message_file, "r"); | |
750 | if (message_data == NULL | |
751 | || fstat (fileno (message_data), &st) < 0) | |
752 | { | |
753 | fprintf (stderr, "%s:%s: %s\n", program_name, message_file, | |
754 | strerror (errno)); | |
755 | message_file = NULL; | |
756 | } | |
757 | else | |
758 | { | |
759 | message_size = st.st_size; | |
760 | message_section = bfd_make_section (outbfd, ".nlmmessages"); | |
761 | if (message_section == NULL | |
762 | || ! bfd_set_section_size (outbfd, message_section, message_size) | |
763 | || ! bfd_set_section_flags (outbfd, message_section, | |
764 | SEC_HAS_CONTENTS)) | |
765 | bfd_fatal (_("message section")); | |
ea9986ff | 766 | LITMEMCPY (nlm_extended_header (outbfd)->stamp, "MeSsAgEs"); |
252b5132 RH |
767 | } |
768 | } | |
769 | if (modules != NULL) | |
770 | { | |
771 | struct string_list *l; | |
772 | ||
773 | module_size = 0; | |
774 | for (l = modules; l != NULL; l = l->next) | |
775 | module_size += strlen (l->string) + 1; | |
776 | module_section = bfd_make_section (outbfd, ".nlmmodules"); | |
777 | if (module_section == NULL | |
778 | || ! bfd_set_section_size (outbfd, module_section, module_size) | |
779 | || ! bfd_set_section_flags (outbfd, module_section, | |
780 | SEC_HAS_CONTENTS)) | |
781 | bfd_fatal (_("module section")); | |
782 | } | |
783 | if (rpc_file != NULL) | |
784 | { | |
785 | rpc_data = fopen (rpc_file, "r"); | |
786 | if (rpc_data == NULL | |
787 | || fstat (fileno (rpc_data), &st) < 0) | |
788 | { | |
789 | fprintf (stderr, "%s:%s: %s\n", program_name, rpc_file, | |
790 | strerror (errno)); | |
791 | rpc_file = NULL; | |
792 | } | |
793 | else | |
794 | { | |
795 | rpc_size = st.st_size; | |
796 | rpc_section = bfd_make_section (outbfd, ".nlmrpc"); | |
797 | if (rpc_section == NULL | |
798 | || ! bfd_set_section_size (outbfd, rpc_section, rpc_size) | |
799 | || ! bfd_set_section_flags (outbfd, rpc_section, | |
800 | SEC_HAS_CONTENTS)) | |
801 | bfd_fatal (_("rpc section")); | |
ea9986ff | 802 | LITMEMCPY (nlm_extended_header (outbfd)->stamp, "MeSsAgEs"); |
252b5132 RH |
803 | } |
804 | } | |
805 | if (sharelib_file != NULL) | |
806 | { | |
807 | sharedbfd = bfd_openr (sharelib_file, output_format); | |
808 | if (sharedbfd == NULL | |
809 | || ! bfd_check_format (sharedbfd, bfd_object)) | |
810 | { | |
811 | fprintf (stderr, "%s:%s: %s\n", program_name, sharelib_file, | |
812 | bfd_errmsg (bfd_get_error ())); | |
813 | sharelib_file = NULL; | |
814 | } | |
815 | else | |
816 | { | |
817 | sharedhdr = *nlm_fixed_header (sharedbfd); | |
818 | bfd_close (sharedbfd); | |
819 | shared_data = fopen (sharelib_file, "r"); | |
820 | if (shared_data == NULL | |
821 | || (fstat (fileno (shared_data), &st) < 0)) | |
822 | { | |
823 | fprintf (stderr, "%s:%s: %s\n", program_name, sharelib_file, | |
824 | strerror (errno)); | |
825 | sharelib_file = NULL; | |
826 | } | |
827 | else | |
828 | { | |
829 | /* If we were clever, we could just copy out the | |
830 | sections of the shared library which we actually | |
831 | need. However, we would have to figure out the sizes | |
832 | of the external and public information, and that can | |
833 | not be done without reading through them. */ | |
834 | if (sharedhdr.uninitializedDataSize > 0) | |
835 | { | |
836 | /* There is no place to record this information. */ | |
37cc8ec1 AM |
837 | non_fatal (_("%s: warning: shared libraries can not have uninitialized data"), |
838 | sharelib_file); | |
252b5132 RH |
839 | } |
840 | shared_offset = st.st_size; | |
841 | if (shared_offset > (size_t) sharedhdr.codeImageOffset) | |
842 | shared_offset = sharedhdr.codeImageOffset; | |
843 | if (shared_offset > (size_t) sharedhdr.dataImageOffset) | |
844 | shared_offset = sharedhdr.dataImageOffset; | |
845 | if (shared_offset > (size_t) sharedhdr.relocationFixupOffset) | |
846 | shared_offset = sharedhdr.relocationFixupOffset; | |
847 | if (shared_offset > (size_t) sharedhdr.externalReferencesOffset) | |
848 | shared_offset = sharedhdr.externalReferencesOffset; | |
849 | if (shared_offset > (size_t) sharedhdr.publicsOffset) | |
850 | shared_offset = sharedhdr.publicsOffset; | |
851 | shared_size = st.st_size - shared_offset; | |
852 | shared_section = bfd_make_section (outbfd, ".nlmshared"); | |
853 | if (shared_section == NULL | |
854 | || ! bfd_set_section_size (outbfd, shared_section, | |
855 | shared_size) | |
856 | || ! bfd_set_section_flags (outbfd, shared_section, | |
857 | SEC_HAS_CONTENTS)) | |
858 | bfd_fatal (_("shared section")); | |
ea9986ff | 859 | LITMEMCPY (nlm_extended_header (outbfd)->stamp, "MeSsAgEs"); |
252b5132 RH |
860 | } |
861 | } | |
862 | } | |
863 | ||
864 | /* Check whether a version was given. */ | |
0112cd26 | 865 | if (!CONST_STRNEQ (version_hdr->stamp, "VeRsIoN#")) |
37cc8ec1 | 866 | non_fatal (_("warning: No version number given")); |
252b5132 RH |
867 | |
868 | /* At least for now, always create an extended header, because that | |
869 | is what NLMLINK does. */ | |
ea9986ff | 870 | LITMEMCPY (nlm_extended_header (outbfd)->stamp, "MeSsAgEs"); |
252b5132 | 871 | |
ea9986ff | 872 | LITMEMCPY (nlm_cygnus_ext_header (outbfd)->stamp, "CyGnUsEx"); |
252b5132 RH |
873 | |
874 | /* If the date was not given, force it in. */ | |
875 | if (nlm_version_header (outbfd)->month == 0 | |
876 | && nlm_version_header (outbfd)->day == 0 | |
877 | && nlm_version_header (outbfd)->year == 0) | |
878 | { | |
879 | time_t now; | |
880 | struct tm *ptm; | |
881 | ||
882 | time (&now); | |
883 | ptm = localtime (&now); | |
884 | nlm_version_header (outbfd)->month = ptm->tm_mon + 1; | |
885 | nlm_version_header (outbfd)->day = ptm->tm_mday; | |
886 | nlm_version_header (outbfd)->year = ptm->tm_year + 1900; | |
ea9986ff | 887 | LITMEMCPY (version_hdr->stamp, "VeRsIoN#"); |
252b5132 RH |
888 | } |
889 | ||
890 | #ifdef NLMCONV_POWERPC | |
891 | /* Resolve the stubs we build for PowerPC NetWare. */ | |
892 | if (bfd_get_arch (inbfd) == bfd_arch_powerpc) | |
893 | powerpc_resolve_stubs (inbfd, outbfd); | |
894 | #endif | |
895 | ||
896 | /* Copy over the sections. */ | |
2da42df6 | 897 | bfd_map_over_sections (inbfd, copy_sections, (void *) outbfd); |
252b5132 RH |
898 | |
899 | /* Finish up the header information. */ | |
900 | if (custom_file != NULL) | |
901 | { | |
2da42df6 | 902 | void *data; |
252b5132 RH |
903 | |
904 | data = xmalloc (custom_size); | |
905 | if (fread (data, 1, custom_size, custom_data) != custom_size) | |
37cc8ec1 | 906 | non_fatal (_("%s: read: %s"), custom_file, strerror (errno)); |
252b5132 RH |
907 | else |
908 | { | |
909 | if (! bfd_set_section_contents (outbfd, custom_section, data, | |
910 | (file_ptr) 0, custom_size)) | |
911 | bfd_fatal (_("custom section")); | |
912 | nlm_fixed_header (outbfd)->customDataOffset = | |
913 | custom_section->filepos; | |
914 | nlm_fixed_header (outbfd)->customDataSize = custom_size; | |
915 | } | |
916 | free (data); | |
917 | } | |
918 | if (! debug_info) | |
919 | { | |
920 | /* As a special hack, the backend recognizes a debugInfoOffset | |
921 | of -1 to mean that it should not output any debugging | |
922 | information. This can not be handling by fiddling with the | |
923 | symbol table because exported symbols appear in both the | |
924 | export information and the debugging information. */ | |
925 | nlm_fixed_header (outbfd)->debugInfoOffset = (file_ptr) -1; | |
926 | } | |
44a6d974 NC |
927 | if (full_map) |
928 | non_fatal (_("warning: FULLMAP is not supported; try ld -M")); | |
252b5132 RH |
929 | if (help_file != NULL) |
930 | { | |
2da42df6 | 931 | void *data; |
252b5132 RH |
932 | |
933 | data = xmalloc (help_size); | |
934 | if (fread (data, 1, help_size, help_data) != help_size) | |
37cc8ec1 | 935 | non_fatal (_("%s: read: %s"), help_file, strerror (errno)); |
252b5132 RH |
936 | else |
937 | { | |
938 | if (! bfd_set_section_contents (outbfd, help_section, data, | |
939 | (file_ptr) 0, help_size)) | |
940 | bfd_fatal (_("help section")); | |
941 | nlm_extended_header (outbfd)->helpFileOffset = | |
942 | help_section->filepos; | |
943 | nlm_extended_header (outbfd)->helpFileLength = help_size; | |
944 | } | |
945 | free (data); | |
946 | } | |
947 | if (message_file != NULL) | |
948 | { | |
2da42df6 | 949 | void *data; |
252b5132 RH |
950 | |
951 | data = xmalloc (message_size); | |
952 | if (fread (data, 1, message_size, message_data) != message_size) | |
37cc8ec1 | 953 | non_fatal (_("%s: read: %s"), message_file, strerror (errno)); |
252b5132 RH |
954 | else |
955 | { | |
956 | if (! bfd_set_section_contents (outbfd, message_section, data, | |
957 | (file_ptr) 0, message_size)) | |
958 | bfd_fatal (_("message section")); | |
959 | nlm_extended_header (outbfd)->messageFileOffset = | |
960 | message_section->filepos; | |
961 | nlm_extended_header (outbfd)->messageFileLength = message_size; | |
962 | ||
963 | /* FIXME: Are these offsets correct on all platforms? Are | |
964 | they 32 bits on all platforms? What endianness? */ | |
965 | nlm_extended_header (outbfd)->languageID = | |
966 | bfd_h_get_32 (outbfd, (bfd_byte *) data + 106); | |
967 | nlm_extended_header (outbfd)->messageCount = | |
968 | bfd_h_get_32 (outbfd, (bfd_byte *) data + 110); | |
969 | } | |
970 | free (data); | |
971 | } | |
972 | if (modules != NULL) | |
973 | { | |
2da42df6 | 974 | void *data; |
252b5132 RH |
975 | unsigned char *set; |
976 | struct string_list *l; | |
977 | bfd_size_type c; | |
978 | ||
979 | data = xmalloc (module_size); | |
980 | c = 0; | |
981 | set = (unsigned char *) data; | |
982 | for (l = modules; l != NULL; l = l->next) | |
983 | { | |
984 | *set = strlen (l->string); | |
dc3c06c2 | 985 | strncpy ((char *) set + 1, l->string, *set); |
252b5132 RH |
986 | set += *set + 1; |
987 | ++c; | |
988 | } | |
989 | if (! bfd_set_section_contents (outbfd, module_section, data, | |
990 | (file_ptr) 0, module_size)) | |
991 | bfd_fatal (_("module section")); | |
992 | nlm_fixed_header (outbfd)->moduleDependencyOffset = | |
993 | module_section->filepos; | |
994 | nlm_fixed_header (outbfd)->numberOfModuleDependencies = c; | |
995 | } | |
996 | if (rpc_file != NULL) | |
997 | { | |
2da42df6 | 998 | void *data; |
252b5132 RH |
999 | |
1000 | data = xmalloc (rpc_size); | |
1001 | if (fread (data, 1, rpc_size, rpc_data) != rpc_size) | |
37cc8ec1 | 1002 | non_fatal (_("%s: read: %s"), rpc_file, strerror (errno)); |
252b5132 RH |
1003 | else |
1004 | { | |
1005 | if (! bfd_set_section_contents (outbfd, rpc_section, data, | |
1006 | (file_ptr) 0, rpc_size)) | |
1007 | bfd_fatal (_("rpc section")); | |
1008 | nlm_extended_header (outbfd)->RPCDataOffset = | |
1009 | rpc_section->filepos; | |
1010 | nlm_extended_header (outbfd)->RPCDataLength = rpc_size; | |
1011 | } | |
1012 | free (data); | |
1013 | } | |
1014 | if (sharelib_file != NULL) | |
1015 | { | |
2da42df6 | 1016 | void *data; |
252b5132 RH |
1017 | |
1018 | data = xmalloc (shared_size); | |
1019 | if (fseek (shared_data, shared_offset, SEEK_SET) != 0 | |
1020 | || fread (data, 1, shared_size, shared_data) != shared_size) | |
37cc8ec1 | 1021 | non_fatal (_("%s: read: %s"), sharelib_file, strerror (errno)); |
252b5132 RH |
1022 | else |
1023 | { | |
1024 | if (! bfd_set_section_contents (outbfd, shared_section, data, | |
1025 | (file_ptr) 0, shared_size)) | |
1026 | bfd_fatal (_("shared section")); | |
1027 | } | |
1028 | nlm_extended_header (outbfd)->sharedCodeOffset = | |
1029 | sharedhdr.codeImageOffset - shared_offset + shared_section->filepos; | |
1030 | nlm_extended_header (outbfd)->sharedCodeLength = | |
1031 | sharedhdr.codeImageSize; | |
1032 | nlm_extended_header (outbfd)->sharedDataOffset = | |
1033 | sharedhdr.dataImageOffset - shared_offset + shared_section->filepos; | |
1034 | nlm_extended_header (outbfd)->sharedDataLength = | |
1035 | sharedhdr.dataImageSize; | |
1036 | nlm_extended_header (outbfd)->sharedRelocationFixupOffset = | |
1037 | (sharedhdr.relocationFixupOffset | |
1038 | - shared_offset | |
1039 | + shared_section->filepos); | |
1040 | nlm_extended_header (outbfd)->sharedRelocationFixupCount = | |
1041 | sharedhdr.numberOfRelocationFixups; | |
1042 | nlm_extended_header (outbfd)->sharedExternalReferenceOffset = | |
1043 | (sharedhdr.externalReferencesOffset | |
1044 | - shared_offset | |
1045 | + shared_section->filepos); | |
1046 | nlm_extended_header (outbfd)->sharedExternalReferenceCount = | |
1047 | sharedhdr.numberOfExternalReferences; | |
1048 | nlm_extended_header (outbfd)->sharedPublicsOffset = | |
1049 | sharedhdr.publicsOffset - shared_offset + shared_section->filepos; | |
1050 | nlm_extended_header (outbfd)->sharedPublicsCount = | |
1051 | sharedhdr.numberOfPublics; | |
1052 | nlm_extended_header (outbfd)->sharedDebugRecordOffset = | |
1053 | sharedhdr.debugInfoOffset - shared_offset + shared_section->filepos; | |
1054 | nlm_extended_header (outbfd)->sharedDebugRecordCount = | |
1055 | sharedhdr.numberOfDebugRecords; | |
1056 | nlm_extended_header (outbfd)->SharedInitializationOffset = | |
1057 | sharedhdr.codeStartOffset; | |
1058 | nlm_extended_header (outbfd)->SharedExitProcedureOffset = | |
1059 | sharedhdr.exitProcedureOffset; | |
1060 | free (data); | |
1061 | } | |
8b626bcf NC |
1062 | |
1063 | { | |
1064 | const int max_len = NLM_MODULE_NAME_SIZE - 2; | |
1065 | const char * filename = lbasename (output_file); | |
1066 | ||
1067 | len = strlen (filename); | |
1068 | if (len > max_len) | |
1069 | len = max_len; | |
1070 | nlm_fixed_header (outbfd)->moduleName[0] = len; | |
1071 | ||
1072 | strncpy (nlm_fixed_header (outbfd)->moduleName + 1, filename, max_len); | |
1073 | nlm_fixed_header (outbfd)->moduleName[max_len + 1] = '\0'; | |
1074 | ||
1075 | for (modname = nlm_fixed_header (outbfd)->moduleName; | |
1076 | *modname != '\0'; | |
1077 | modname++) | |
1078 | *modname = TOUPPER (*modname); | |
1079 | } | |
252b5132 RH |
1080 | |
1081 | strncpy (nlm_variable_header (outbfd)->oldThreadName, " LONG", | |
1082 | NLM_OLD_THREAD_NAME_LENGTH); | |
1083 | ||
1084 | nlm_cygnus_ext_header (outbfd)->offset = secsec->filepos; | |
1085 | nlm_cygnus_ext_header (outbfd)->length = bfd_section_size (outbfd, secsec); | |
1086 | ||
1087 | if (! bfd_close (outbfd)) | |
1088 | bfd_fatal (output_file); | |
1089 | if (! bfd_close (inbfd)) | |
1090 | bfd_fatal (input_file); | |
1091 | ||
1092 | if (unlink_on_exit != NULL) | |
1093 | unlink (unlink_on_exit); | |
1094 | ||
1095 | return 0; | |
1096 | } | |
1097 | \f | |
252b5132 RH |
1098 | |
1099 | /* Show a usage message and exit. */ | |
1100 | ||
1101 | static void | |
2da42df6 | 1102 | show_usage (FILE *file, int status) |
252b5132 | 1103 | { |
8b53311e NC |
1104 | fprintf (file, _("Usage: %s [option(s)] [in-file [out-file]]\n"), program_name); |
1105 | fprintf (file, _(" Convert an object file into a NetWare Loadable Module\n")); | |
1106 | fprintf (file, _(" The options are:\n\ | |
1107 | -I --input-target=<bfdname> Set the input binary file format\n\ | |
1108 | -O --output-target=<bfdname> Set the output binary file format\n\ | |
1109 | -T --header-file=<file> Read <file> for NLM header information\n\ | |
1110 | -l --linker=<linker> Use <linker> for any linking\n\ | |
1111 | -d --debug Display on stderr the linker command line\n\ | |
07012eee | 1112 | @<file> Read options from <file>.\n\ |
8b53311e NC |
1113 | -h --help Display this information\n\ |
1114 | -v --version Display the program's version\n\ | |
1115 | ")); | |
92f01d61 | 1116 | if (REPORT_BUGS_TO[0] && status == 0) |
8ad3436c | 1117 | fprintf (file, _("Report bugs to %s\n"), REPORT_BUGS_TO); |
252b5132 RH |
1118 | exit (status); |
1119 | } | |
1120 | \f | |
1121 | /* Select the output format based on the input architecture, machine, | |
1122 | and endianness. This chooses the appropriate NLM target. */ | |
1123 | ||
1124 | static const char * | |
2da42df6 AJ |
1125 | select_output_format (enum bfd_architecture arch, unsigned long mach, |
1126 | bfd_boolean bigendian ATTRIBUTE_UNUSED) | |
252b5132 RH |
1127 | { |
1128 | switch (arch) | |
1129 | { | |
1130 | #ifdef NLMCONV_I386 | |
1131 | case bfd_arch_i386: | |
1132 | return "nlm32-i386"; | |
1133 | #endif | |
1134 | #ifdef NLMCONV_SPARC | |
1135 | case bfd_arch_sparc: | |
1136 | return "nlm32-sparc"; | |
1137 | #endif | |
1138 | #ifdef NLMCONV_ALPHA | |
1139 | case bfd_arch_alpha: | |
1140 | return "nlm32-alpha"; | |
1141 | #endif | |
1142 | #ifdef NLMCONV_POWERPC | |
1143 | case bfd_arch_powerpc: | |
1144 | return "nlm32-powerpc"; | |
1145 | #endif | |
1146 | default: | |
37cc8ec1 AM |
1147 | fatal (_("support not compiled in for %s"), |
1148 | bfd_printable_arch_mach (arch, mach)); | |
252b5132 RH |
1149 | } |
1150 | /*NOTREACHED*/ | |
1151 | } | |
1152 | \f | |
1153 | /* The BFD sections are copied in two passes. This function selects | |
1154 | the output section for each input section, and sets up the section | |
1155 | name, size, etc. */ | |
1156 | ||
1157 | static void | |
2da42df6 | 1158 | setup_sections (bfd *inbfd ATTRIBUTE_UNUSED, asection *insec, void *data_ptr) |
252b5132 RH |
1159 | { |
1160 | bfd *outbfd = (bfd *) data_ptr; | |
1161 | flagword f; | |
1162 | const char *outname; | |
1163 | asection *outsec; | |
1164 | bfd_vma offset; | |
1165 | bfd_size_type align; | |
1166 | bfd_size_type add; | |
1167 | bfd_size_type secsecsize; | |
1168 | ||
1169 | f = bfd_get_section_flags (inbfd, insec); | |
1170 | if (f & SEC_CODE) | |
1171 | outname = NLM_CODE_NAME; | |
1172 | else if ((f & SEC_LOAD) && (f & SEC_HAS_CONTENTS)) | |
1173 | outname = NLM_INITIALIZED_DATA_NAME; | |
1174 | else if (f & SEC_ALLOC) | |
1175 | outname = NLM_UNINITIALIZED_DATA_NAME; | |
1176 | else | |
1177 | outname = bfd_section_name (inbfd, insec); | |
1178 | ||
1179 | outsec = bfd_get_section_by_name (outbfd, outname); | |
1180 | if (outsec == NULL) | |
1181 | { | |
1182 | outsec = bfd_make_section (outbfd, outname); | |
1183 | if (outsec == NULL) | |
1184 | bfd_fatal (_("make section")); | |
1185 | } | |
1186 | ||
1187 | insec->output_section = outsec; | |
1188 | ||
1189 | offset = bfd_section_size (outbfd, outsec); | |
1190 | align = 1 << bfd_section_alignment (inbfd, insec); | |
1191 | add = ((offset + align - 1) &~ (align - 1)) - offset; | |
1192 | insec->output_offset = offset + add; | |
1193 | ||
1194 | if (! bfd_set_section_size (outbfd, outsec, | |
1195 | (bfd_section_size (outbfd, outsec) | |
1196 | + bfd_section_size (inbfd, insec) | |
1197 | + add))) | |
1198 | bfd_fatal (_("set section size")); | |
1199 | ||
1200 | if ((bfd_section_alignment (inbfd, insec) | |
1201 | > bfd_section_alignment (outbfd, outsec)) | |
1202 | && ! bfd_set_section_alignment (outbfd, outsec, | |
1203 | bfd_section_alignment (inbfd, insec))) | |
1204 | bfd_fatal (_("set section alignment")); | |
1205 | ||
1206 | if (! bfd_set_section_flags (outbfd, outsec, | |
1207 | f | bfd_get_section_flags (outbfd, outsec))) | |
1208 | bfd_fatal (_("set section flags")); | |
1209 | ||
1210 | bfd_set_reloc (outbfd, outsec, (arelent **) NULL, 0); | |
1211 | ||
1212 | /* For each input section we allocate space for an entry in | |
1213 | .nlmsections. */ | |
1214 | secsecsize = bfd_section_size (outbfd, secsec); | |
1215 | secsecsize += strlen (bfd_section_name (inbfd, insec)) + 1; | |
1216 | secsecsize = (secsecsize + 3) &~ 3; | |
1217 | secsecsize += 8; | |
1218 | if (! bfd_set_section_size (outbfd, secsec, secsecsize)) | |
1219 | bfd_fatal (_("set .nlmsections size")); | |
1220 | } | |
1221 | ||
1222 | /* Copy the section contents. */ | |
1223 | ||
1224 | static void | |
2da42df6 | 1225 | copy_sections (bfd *inbfd, asection *insec, void *data_ptr) |
252b5132 RH |
1226 | { |
1227 | static bfd_size_type secsecoff = 0; | |
1228 | bfd *outbfd = (bfd *) data_ptr; | |
1229 | const char *inname; | |
1230 | asection *outsec; | |
1231 | bfd_size_type size; | |
2da42df6 | 1232 | void *contents; |
252b5132 RH |
1233 | long reloc_size; |
1234 | bfd_byte buf[4]; | |
1235 | bfd_size_type add; | |
1236 | ||
1237 | inname = bfd_section_name (inbfd, insec); | |
1238 | ||
1239 | outsec = insec->output_section; | |
1240 | assert (outsec != NULL); | |
1241 | ||
135dfb4a | 1242 | size = bfd_get_section_size (insec); |
252b5132 RH |
1243 | |
1244 | if ((bfd_get_section_flags (inbfd, insec) & SEC_HAS_CONTENTS) == 0) | |
1245 | contents = NULL; | |
1246 | else | |
1247 | { | |
1248 | contents = xmalloc (size); | |
1249 | if (! bfd_get_section_contents (inbfd, insec, contents, | |
1250 | (file_ptr) 0, size)) | |
1251 | bfd_fatal (bfd_get_filename (inbfd)); | |
1252 | } | |
1253 | ||
1254 | reloc_size = bfd_get_reloc_upper_bound (inbfd, insec); | |
1255 | if (reloc_size < 0) | |
1256 | bfd_fatal (bfd_get_filename (inbfd)); | |
1257 | if (reloc_size != 0) | |
1258 | { | |
1259 | arelent **relocs; | |
1260 | long reloc_count; | |
1261 | ||
1262 | relocs = (arelent **) xmalloc (reloc_size); | |
1263 | reloc_count = bfd_canonicalize_reloc (inbfd, insec, relocs, symbols); | |
1264 | if (reloc_count < 0) | |
1265 | bfd_fatal (bfd_get_filename (inbfd)); | |
1266 | mangle_relocs (outbfd, insec, &relocs, &reloc_count, (char *) contents, | |
1267 | size); | |
1268 | ||
1269 | /* FIXME: refers to internal BFD fields. */ | |
1270 | if (outsec->orelocation != (arelent **) NULL) | |
1271 | { | |
1272 | bfd_size_type total_count; | |
1273 | arelent **combined; | |
1274 | ||
1275 | total_count = reloc_count + outsec->reloc_count; | |
1276 | combined = (arelent **) xmalloc (total_count * sizeof (arelent *)); | |
1277 | memcpy (combined, outsec->orelocation, | |
1278 | outsec->reloc_count * sizeof (arelent *)); | |
1279 | memcpy (combined + outsec->reloc_count, relocs, | |
1280 | (size_t) (reloc_count * sizeof (arelent *))); | |
1281 | free (outsec->orelocation); | |
1282 | reloc_count = total_count; | |
1283 | relocs = combined; | |
1284 | } | |
1285 | ||
1286 | bfd_set_reloc (outbfd, outsec, relocs, reloc_count); | |
1287 | } | |
1288 | ||
1289 | if (contents != NULL) | |
1290 | { | |
1291 | if (! bfd_set_section_contents (outbfd, outsec, contents, | |
1292 | insec->output_offset, size)) | |
1293 | bfd_fatal (bfd_get_filename (outbfd)); | |
1294 | free (contents); | |
1295 | } | |
1296 | ||
1297 | /* Add this section to .nlmsections. */ | |
2da42df6 | 1298 | if (! bfd_set_section_contents (outbfd, secsec, (void *) inname, secsecoff, |
252b5132 RH |
1299 | strlen (inname) + 1)) |
1300 | bfd_fatal (_("set .nlmsection contents")); | |
1301 | secsecoff += strlen (inname) + 1; | |
1302 | ||
1303 | add = ((secsecoff + 3) &~ 3) - secsecoff; | |
1304 | if (add != 0) | |
1305 | { | |
1306 | bfd_h_put_32 (outbfd, (bfd_vma) 0, buf); | |
1307 | if (! bfd_set_section_contents (outbfd, secsec, buf, secsecoff, add)) | |
1308 | bfd_fatal (_("set .nlmsection contents")); | |
1309 | secsecoff += add; | |
1310 | } | |
1311 | ||
1312 | if (contents != NULL) | |
1313 | bfd_h_put_32 (outbfd, (bfd_vma) outsec->filepos, buf); | |
1314 | else | |
1315 | bfd_h_put_32 (outbfd, (bfd_vma) 0, buf); | |
1316 | if (! bfd_set_section_contents (outbfd, secsec, buf, secsecoff, 4)) | |
1317 | bfd_fatal (_("set .nlmsection contents")); | |
1318 | secsecoff += 4; | |
1319 | ||
1320 | bfd_h_put_32 (outbfd, (bfd_vma) size, buf); | |
1321 | if (! bfd_set_section_contents (outbfd, secsec, buf, secsecoff, 4)) | |
1322 | bfd_fatal (_("set .nlmsection contents")); | |
1323 | secsecoff += 4; | |
1324 | } | |
1325 | ||
1326 | /* Some, perhaps all, NetWare targets require changing the relocs used | |
1327 | by the input formats. */ | |
1328 | ||
1329 | static void | |
2da42df6 AJ |
1330 | mangle_relocs (bfd *outbfd, asection *insec, arelent ***relocs_ptr, |
1331 | long *reloc_count_ptr, char *contents, | |
1332 | bfd_size_type contents_size) | |
252b5132 RH |
1333 | { |
1334 | switch (bfd_get_arch (outbfd)) | |
1335 | { | |
1336 | #ifdef NLMCONV_I386 | |
1337 | case bfd_arch_i386: | |
1338 | i386_mangle_relocs (outbfd, insec, relocs_ptr, reloc_count_ptr, | |
1339 | contents, contents_size); | |
1340 | break; | |
1341 | #endif | |
1342 | #ifdef NLMCONV_ALPHA | |
1343 | case bfd_arch_alpha: | |
1344 | alpha_mangle_relocs (outbfd, insec, relocs_ptr, reloc_count_ptr, | |
1345 | contents, contents_size); | |
1346 | break; | |
1347 | #endif | |
1348 | #ifdef NLMCONV_POWERPC | |
1349 | case bfd_arch_powerpc: | |
1350 | powerpc_mangle_relocs (outbfd, insec, relocs_ptr, reloc_count_ptr, | |
1351 | contents, contents_size); | |
1352 | break; | |
1353 | #endif | |
1354 | default: | |
1355 | default_mangle_relocs (outbfd, insec, relocs_ptr, reloc_count_ptr, | |
1356 | contents, contents_size); | |
1357 | break; | |
1358 | } | |
1359 | } | |
1360 | ||
1361 | /* By default all we need to do for relocs is change the address by | |
1362 | the output_offset. */ | |
1363 | ||
252b5132 | 1364 | static void |
2da42df6 AJ |
1365 | default_mangle_relocs (bfd *outbfd ATTRIBUTE_UNUSED, asection *insec, |
1366 | arelent ***relocs_ptr, long *reloc_count_ptr, | |
1367 | char *contents ATTRIBUTE_UNUSED, | |
1368 | bfd_size_type contents_size ATTRIBUTE_UNUSED) | |
252b5132 RH |
1369 | { |
1370 | if (insec->output_offset != 0) | |
1371 | { | |
1372 | long reloc_count; | |
44a6d974 NC |
1373 | arelent **relocs; |
1374 | long i; | |
252b5132 RH |
1375 | |
1376 | reloc_count = *reloc_count_ptr; | |
1377 | relocs = *relocs_ptr; | |
1378 | for (i = 0; i < reloc_count; i++, relocs++) | |
1379 | (*relocs)->address += insec->output_offset; | |
1380 | } | |
1381 | } | |
1382 | \f | |
1383 | #ifdef NLMCONV_I386 | |
1384 | ||
1385 | /* NetWare on the i386 supports a restricted set of relocs, which are | |
1386 | different from those used on other i386 targets. This routine | |
1387 | converts the relocs. It is, obviously, very target dependent. At | |
1388 | the moment, the nlm32-i386 backend performs similar translations; | |
1389 | however, it is more reliable and efficient to do them here. */ | |
1390 | ||
1391 | static reloc_howto_type nlm_i386_pcrel_howto = | |
1392 | HOWTO (1, /* type */ | |
1393 | 0, /* rightshift */ | |
1394 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1395 | 32, /* bitsize */ | |
b34976b6 | 1396 | TRUE, /* pc_relative */ |
252b5132 RH |
1397 | 0, /* bitpos */ |
1398 | complain_overflow_signed, /* complain_on_overflow */ | |
1399 | 0, /* special_function */ | |
1400 | "DISP32", /* name */ | |
b34976b6 | 1401 | TRUE, /* partial_inplace */ |
252b5132 RH |
1402 | 0xffffffff, /* src_mask */ |
1403 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 1404 | TRUE); /* pcrel_offset */ |
252b5132 RH |
1405 | |
1406 | static void | |
2da42df6 AJ |
1407 | i386_mangle_relocs (bfd *outbfd, asection *insec, arelent ***relocs_ptr, |
1408 | long *reloc_count_ptr, char *contents, | |
1409 | bfd_size_type contents_size) | |
252b5132 RH |
1410 | { |
1411 | long reloc_count, i; | |
1412 | arelent **relocs; | |
1413 | ||
1414 | reloc_count = *reloc_count_ptr; | |
1415 | relocs = *relocs_ptr; | |
1416 | for (i = 0; i < reloc_count; i++) | |
1417 | { | |
1418 | arelent *rel; | |
1419 | asymbol *sym; | |
1420 | bfd_size_type address; | |
1421 | bfd_vma addend; | |
1422 | ||
1423 | rel = *relocs++; | |
1424 | sym = *rel->sym_ptr_ptr; | |
1425 | ||
1426 | /* We're moving the relocs from the input section to the output | |
1427 | section, so we must adjust the address accordingly. */ | |
1428 | address = rel->address; | |
1429 | rel->address += insec->output_offset; | |
1430 | ||
1431 | /* Note that no serious harm will ensue if we fail to change a | |
1432 | reloc. The backend will fail when writing out the reloc. */ | |
1433 | ||
1434 | /* Make sure this reloc is within the data we have. We use only | |
1435 | 4 byte relocs here, so we insist on having 4 bytes. */ | |
1436 | if (address + 4 > contents_size) | |
1437 | continue; | |
1438 | ||
1439 | /* A PC relative reloc entirely within a single section is | |
1440 | completely unnecessary. This can be generated by ld -r. */ | |
1441 | if (sym == insec->symbol | |
1442 | && rel->howto != NULL | |
1443 | && rel->howto->pc_relative | |
1444 | && ! rel->howto->pcrel_offset) | |
1445 | { | |
1446 | --*reloc_count_ptr; | |
1447 | --relocs; | |
1448 | memmove (relocs, relocs + 1, | |
1449 | (size_t) ((reloc_count - i) * sizeof (arelent *))); | |
1450 | continue; | |
1451 | } | |
1452 | ||
1453 | /* Get the amount the relocation will add in. */ | |
1454 | addend = rel->addend + sym->value; | |
1455 | ||
1456 | /* NetWare doesn't support PC relative relocs against defined | |
1457 | symbols, so we have to eliminate them by doing the relocation | |
1458 | now. We can only do this if the reloc is within a single | |
1459 | section. */ | |
1460 | if (rel->howto != NULL | |
1461 | && rel->howto->pc_relative | |
1462 | && bfd_get_section (sym) == insec->output_section) | |
1463 | { | |
1464 | bfd_vma val; | |
1465 | ||
1466 | if (rel->howto->pcrel_offset) | |
1467 | addend -= address; | |
1468 | ||
1469 | val = bfd_get_32 (outbfd, (bfd_byte *) contents + address); | |
1470 | val += addend; | |
1471 | bfd_put_32 (outbfd, val, (bfd_byte *) contents + address); | |
1472 | ||
1473 | --*reloc_count_ptr; | |
1474 | --relocs; | |
1475 | memmove (relocs, relocs + 1, | |
1476 | (size_t) ((reloc_count - i) * sizeof (arelent *))); | |
1477 | continue; | |
1478 | } | |
1479 | ||
1480 | /* NetWare doesn't support reloc addends, so we get rid of them | |
1481 | here by simply adding them into the object data. We handle | |
1482 | the symbol value, if any, the same way. */ | |
1483 | if (addend != 0 | |
1484 | && rel->howto != NULL | |
1485 | && rel->howto->rightshift == 0 | |
1486 | && rel->howto->size == 2 | |
1487 | && rel->howto->bitsize == 32 | |
1488 | && rel->howto->bitpos == 0 | |
1489 | && rel->howto->src_mask == 0xffffffff | |
1490 | && rel->howto->dst_mask == 0xffffffff) | |
1491 | { | |
1492 | bfd_vma val; | |
1493 | ||
1494 | val = bfd_get_32 (outbfd, (bfd_byte *) contents + address); | |
1495 | val += addend; | |
1496 | bfd_put_32 (outbfd, val, (bfd_byte *) contents + address); | |
1497 | ||
1498 | /* Adjust the reloc for the changes we just made. */ | |
1499 | rel->addend = 0; | |
1500 | if (! bfd_is_und_section (bfd_get_section (sym))) | |
1501 | rel->sym_ptr_ptr = bfd_get_section (sym)->symbol_ptr_ptr; | |
1502 | } | |
1503 | ||
1504 | /* NetWare uses a reloc with pcrel_offset set. We adjust | |
1505 | pc_relative relocs accordingly. We are going to change the | |
1506 | howto field, so we can only do this if the current one is | |
1507 | compatible. We should check that special_function is NULL | |
1508 | here, but at the moment coff-i386 uses a special_function | |
1509 | which does not affect what we are doing here. */ | |
1510 | if (rel->howto != NULL | |
1511 | && rel->howto->pc_relative | |
1512 | && ! rel->howto->pcrel_offset | |
1513 | && rel->howto->rightshift == 0 | |
1514 | && rel->howto->size == 2 | |
1515 | && rel->howto->bitsize == 32 | |
1516 | && rel->howto->bitpos == 0 | |
1517 | && rel->howto->src_mask == 0xffffffff | |
1518 | && rel->howto->dst_mask == 0xffffffff) | |
1519 | { | |
1520 | bfd_vma val; | |
1521 | ||
1522 | /* When pcrel_offset is not set, it means that the negative | |
1523 | of the address of the memory location is stored in the | |
1524 | memory location. We must add it back in. */ | |
1525 | val = bfd_get_32 (outbfd, (bfd_byte *) contents + address); | |
1526 | val += address; | |
1527 | bfd_put_32 (outbfd, val, (bfd_byte *) contents + address); | |
1528 | ||
1529 | /* We must change to a new howto. */ | |
1530 | rel->howto = &nlm_i386_pcrel_howto; | |
1531 | } | |
1532 | } | |
1533 | } | |
1534 | ||
1535 | #endif /* NLMCONV_I386 */ | |
1536 | \f | |
1537 | #ifdef NLMCONV_ALPHA | |
1538 | ||
1539 | /* On the Alpha the first reloc for every section must be a special | |
1540 | relocs which hold the GP address. Also, the first reloc in the | |
1541 | file must be a special reloc which holds the address of the .lita | |
1542 | section. */ | |
1543 | ||
1544 | static reloc_howto_type nlm32_alpha_nw_howto = | |
1545 | HOWTO (ALPHA_R_NW_RELOC, /* type */ | |
1546 | 0, /* rightshift */ | |
1547 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1548 | 0, /* bitsize */ | |
b34976b6 | 1549 | FALSE, /* pc_relative */ |
252b5132 RH |
1550 | 0, /* bitpos */ |
1551 | complain_overflow_dont, /* complain_on_overflow */ | |
1552 | 0, /* special_function */ | |
1553 | "NW_RELOC", /* name */ | |
b34976b6 | 1554 | FALSE, /* partial_inplace */ |
252b5132 RH |
1555 | 0, /* src_mask */ |
1556 | 0, /* dst_mask */ | |
b34976b6 | 1557 | FALSE); /* pcrel_offset */ |
252b5132 | 1558 | |
252b5132 | 1559 | static void |
2da42df6 | 1560 | alpha_mangle_relocs (bfd *outbfd, asection *insec, |
44a6d974 | 1561 | arelent ***relocs_ptr, long *reloc_count_ptr, |
2da42df6 AJ |
1562 | char *contents ATTRIBUTE_UNUSED, |
1563 | bfd_size_type contents_size ATTRIBUTE_UNUSED) | |
252b5132 RH |
1564 | { |
1565 | long old_reloc_count; | |
1566 | arelent **old_relocs; | |
44a6d974 | 1567 | arelent **relocs; |
252b5132 RH |
1568 | |
1569 | old_reloc_count = *reloc_count_ptr; | |
1570 | old_relocs = *relocs_ptr; | |
1571 | relocs = (arelent **) xmalloc ((old_reloc_count + 3) * sizeof (arelent *)); | |
1572 | *relocs_ptr = relocs; | |
1573 | ||
1574 | if (nlm_alpha_backend_data (outbfd)->lita_address == 0) | |
1575 | { | |
1576 | bfd *inbfd; | |
1577 | asection *lita_section; | |
1578 | ||
1579 | inbfd = insec->owner; | |
1580 | lita_section = bfd_get_section_by_name (inbfd, _LITA); | |
1581 | if (lita_section != (asection *) NULL) | |
1582 | { | |
1583 | nlm_alpha_backend_data (outbfd)->lita_address = | |
1584 | bfd_get_section_vma (inbfd, lita_section); | |
1585 | nlm_alpha_backend_data (outbfd)->lita_size = | |
1586 | bfd_section_size (inbfd, lita_section); | |
1587 | } | |
1588 | else | |
1589 | { | |
1590 | /* Avoid outputting this reloc again. */ | |
1591 | nlm_alpha_backend_data (outbfd)->lita_address = 4; | |
1592 | } | |
1593 | ||
1594 | *relocs = (arelent *) xmalloc (sizeof (arelent)); | |
1595 | (*relocs)->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; | |
1596 | (*relocs)->address = nlm_alpha_backend_data (outbfd)->lita_address; | |
1597 | (*relocs)->addend = nlm_alpha_backend_data (outbfd)->lita_size + 1; | |
1598 | (*relocs)->howto = &nlm32_alpha_nw_howto; | |
1599 | ++relocs; | |
1600 | ++(*reloc_count_ptr); | |
1601 | } | |
1602 | ||
1603 | /* Get the GP value from bfd. */ | |
1604 | if (nlm_alpha_backend_data (outbfd)->gp == 0) | |
1605 | nlm_alpha_backend_data (outbfd)->gp = | |
1606 | bfd_ecoff_get_gp_value (insec->owner); | |
1607 | ||
1608 | *relocs = (arelent *) xmalloc (sizeof (arelent)); | |
1609 | (*relocs)->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; | |
1610 | (*relocs)->address = nlm_alpha_backend_data (outbfd)->gp; | |
1611 | (*relocs)->addend = 0; | |
1612 | (*relocs)->howto = &nlm32_alpha_nw_howto; | |
1613 | ++relocs; | |
1614 | ++(*reloc_count_ptr); | |
1615 | ||
2da42df6 | 1616 | memcpy (relocs, old_relocs, (size_t) old_reloc_count * sizeof (arelent *)); |
252b5132 RH |
1617 | relocs[old_reloc_count] = (arelent *) NULL; |
1618 | ||
1619 | free (old_relocs); | |
1620 | ||
1621 | if (insec->output_offset != 0) | |
1622 | { | |
44a6d974 | 1623 | bfd_size_type i; |
252b5132 RH |
1624 | |
1625 | for (i = 0; i < (bfd_size_type) old_reloc_count; i++, relocs++) | |
1626 | (*relocs)->address += insec->output_offset; | |
1627 | } | |
1628 | } | |
1629 | ||
1630 | #endif /* NLMCONV_ALPHA */ | |
1631 | \f | |
1632 | #ifdef NLMCONV_POWERPC | |
1633 | ||
1634 | /* We keep a linked list of stubs which we must build. Because BFD | |
1635 | requires us to know the sizes of all sections before we can set the | |
1636 | contents of any, we must figure out which stubs we want to build | |
1637 | before we can actually build any of them. */ | |
1638 | ||
1639 | struct powerpc_stub | |
1640 | { | |
1641 | /* Next stub in linked list. */ | |
1642 | struct powerpc_stub *next; | |
1643 | ||
1644 | /* Symbol whose value is the start of the stub. This is a symbol | |
1645 | whose name begins with `.'. */ | |
1646 | asymbol *start; | |
1647 | ||
1648 | /* Symbol we are going to create a reloc against. This is a symbol | |
1649 | with the same name as START but without the leading `.'. */ | |
1650 | asymbol *reloc; | |
1651 | ||
1652 | /* The TOC index for this stub. This is the index into the TOC | |
1653 | section at which the reloc is created. */ | |
1654 | unsigned int toc_index; | |
1655 | }; | |
1656 | ||
1657 | /* The linked list of stubs. */ | |
1658 | ||
1659 | static struct powerpc_stub *powerpc_stubs; | |
1660 | ||
1661 | /* This is what a stub looks like. The first instruction will get | |
1662 | adjusted with the correct TOC index. */ | |
1663 | ||
1664 | static unsigned long powerpc_stub_insns[] = | |
1665 | { | |
1666 | 0x81820000, /* lwz r12,0(r2) */ | |
1667 | 0x90410014, /* stw r2,20(r1) */ | |
1668 | 0x800c0000, /* lwz r0,0(r12) */ | |
1669 | 0x804c0004, /* lwz r2,r(r12) */ | |
1670 | 0x7c0903a6, /* mtctr r0 */ | |
1671 | 0x4e800420, /* bctr */ | |
1672 | 0, /* Traceback table. */ | |
1673 | 0xc8000, | |
1674 | 0 | |
1675 | }; | |
1676 | ||
1677 | #define POWERPC_STUB_INSN_COUNT \ | |
1678 | (sizeof powerpc_stub_insns / sizeof powerpc_stub_insns[0]) | |
1679 | ||
1680 | #define POWERPC_STUB_SIZE (4 * POWERPC_STUB_INSN_COUNT) | |
1681 | ||
1682 | /* Each stub uses a four byte TOC entry. */ | |
1683 | #define POWERPC_STUB_TOC_ENTRY_SIZE (4) | |
1684 | ||
1685 | /* The original size of the .got section. */ | |
1686 | static bfd_size_type powerpc_initial_got_size; | |
1687 | ||
1688 | /* Look for all undefined symbols beginning with `.', and prepare to | |
1689 | build a stub for each one. */ | |
1690 | ||
1691 | static void | |
2da42df6 AJ |
1692 | powerpc_build_stubs (bfd *inbfd, bfd *outbfd ATTRIBUTE_UNUSED, |
1693 | asymbol ***symbols_ptr, long *symcount_ptr) | |
252b5132 RH |
1694 | { |
1695 | asection *stub_sec; | |
1696 | asection *got_sec; | |
1697 | unsigned int got_base; | |
1698 | long i; | |
1699 | long symcount; | |
1700 | long stubcount; | |
1701 | ||
1702 | /* Make a section to hold stubs. We don't set SEC_HAS_CONTENTS for | |
1703 | the section to prevent copy_sections from reading from it. */ | |
1704 | stub_sec = bfd_make_section (inbfd, ".stubs"); | |
1705 | if (stub_sec == (asection *) NULL | |
1706 | || ! bfd_set_section_flags (inbfd, stub_sec, | |
1707 | (SEC_CODE | |
1708 | | SEC_RELOC | |
1709 | | SEC_ALLOC | |
1710 | | SEC_LOAD)) | |
1711 | || ! bfd_set_section_alignment (inbfd, stub_sec, 2)) | |
1712 | bfd_fatal (".stubs"); | |
1713 | ||
1714 | /* Get the TOC section, which is named .got. */ | |
1715 | got_sec = bfd_get_section_by_name (inbfd, ".got"); | |
1716 | if (got_sec == (asection *) NULL) | |
1717 | { | |
1718 | got_sec = bfd_make_section (inbfd, ".got"); | |
1719 | if (got_sec == (asection *) NULL | |
1720 | || ! bfd_set_section_flags (inbfd, got_sec, | |
1721 | (SEC_DATA | |
1722 | | SEC_RELOC | |
1723 | | SEC_ALLOC | |
1724 | | SEC_LOAD | |
1725 | | SEC_HAS_CONTENTS)) | |
1726 | || ! bfd_set_section_alignment (inbfd, got_sec, 2)) | |
1727 | bfd_fatal (".got"); | |
1728 | } | |
1729 | ||
1730 | powerpc_initial_got_size = bfd_section_size (inbfd, got_sec); | |
1731 | got_base = powerpc_initial_got_size; | |
1732 | got_base = (got_base + 3) &~ 3; | |
1733 | ||
1734 | stubcount = 0; | |
1735 | ||
1736 | symcount = *symcount_ptr; | |
1737 | for (i = 0; i < symcount; i++) | |
1738 | { | |
1739 | asymbol *sym; | |
1740 | asymbol *newsym; | |
1741 | char *newname; | |
1742 | struct powerpc_stub *item; | |
1743 | ||
1744 | sym = (*symbols_ptr)[i]; | |
1745 | ||
1746 | /* We must make a stub for every undefined symbol whose name | |
1747 | starts with '.'. */ | |
1748 | if (bfd_asymbol_name (sym)[0] != '.' | |
1749 | || ! bfd_is_und_section (bfd_get_section (sym))) | |
1750 | continue; | |
1751 | ||
1752 | /* Make a new undefined symbol with the same name but without | |
1753 | the leading `.'. */ | |
ea9986ff | 1754 | newsym = xmalloc (sizeof (asymbol)); |
252b5132 | 1755 | *newsym = *sym; |
ea9986ff | 1756 | newname = xmalloc (strlen (bfd_asymbol_name (sym))); |
252b5132 RH |
1757 | strcpy (newname, bfd_asymbol_name (sym) + 1); |
1758 | newsym->name = newname; | |
1759 | ||
1760 | /* Define the `.' symbol to be in the stub section. */ | |
1761 | sym->section = stub_sec; | |
1762 | sym->value = stubcount * POWERPC_STUB_SIZE; | |
1763 | /* We set the BSF_DYNAMIC flag here so that we can check it when | |
1764 | we are mangling relocs. FIXME: This is a hack. */ | |
1765 | sym->flags = BSF_LOCAL | BSF_DYNAMIC; | |
1766 | ||
1767 | /* Add this stub to the linked list. */ | |
1768 | item = (struct powerpc_stub *) xmalloc (sizeof (struct powerpc_stub)); | |
1769 | item->start = sym; | |
1770 | item->reloc = newsym; | |
1771 | item->toc_index = got_base + stubcount * POWERPC_STUB_TOC_ENTRY_SIZE; | |
1772 | ||
1773 | item->next = powerpc_stubs; | |
1774 | powerpc_stubs = item; | |
0af11b59 | 1775 | |
252b5132 RH |
1776 | ++stubcount; |
1777 | } | |
1778 | ||
1779 | if (stubcount > 0) | |
1780 | { | |
1781 | asymbol **s; | |
1782 | struct powerpc_stub *l; | |
1783 | ||
1784 | /* Add the new symbols we just created to the symbol table. */ | |
1785 | *symbols_ptr = (asymbol **) xrealloc ((char *) *symbols_ptr, | |
1786 | ((symcount + stubcount) | |
1787 | * sizeof (asymbol))); | |
1788 | *symcount_ptr += stubcount; | |
1789 | s = &(*symbols_ptr)[symcount]; | |
1790 | for (l = powerpc_stubs; l != (struct powerpc_stub *) NULL; l = l->next) | |
1791 | *s++ = l->reloc; | |
1792 | ||
1793 | /* Set the size of the .stubs section and increase the size of | |
1794 | the .got section. */ | |
1795 | if (! bfd_set_section_size (inbfd, stub_sec, | |
1796 | stubcount * POWERPC_STUB_SIZE) | |
1797 | || ! bfd_set_section_size (inbfd, got_sec, | |
1798 | (got_base | |
1799 | + (stubcount | |
1800 | * POWERPC_STUB_TOC_ENTRY_SIZE)))) | |
1801 | bfd_fatal (_("stub section sizes")); | |
1802 | } | |
1803 | } | |
1804 | ||
1805 | /* Resolve all the stubs for PowerPC NetWare. We fill in the contents | |
1806 | of the output section, and create new relocs in the TOC. */ | |
1807 | ||
1808 | static void | |
2da42df6 | 1809 | powerpc_resolve_stubs (bfd *inbfd, bfd *outbfd) |
252b5132 RH |
1810 | { |
1811 | bfd_byte buf[POWERPC_STUB_SIZE]; | |
1812 | unsigned int i; | |
1813 | unsigned int stubcount; | |
1814 | arelent **relocs; | |
1815 | asection *got_sec; | |
1816 | arelent **r; | |
1817 | struct powerpc_stub *l; | |
1818 | ||
1819 | if (powerpc_stubs == (struct powerpc_stub *) NULL) | |
1820 | return; | |
1821 | ||
1822 | for (i = 0; i < POWERPC_STUB_INSN_COUNT; i++) | |
1823 | bfd_put_32 (outbfd, (bfd_vma) powerpc_stub_insns[i], buf + i * 4); | |
1824 | ||
1825 | got_sec = bfd_get_section_by_name (inbfd, ".got"); | |
1826 | assert (got_sec != (asection *) NULL); | |
1827 | assert (got_sec->output_section->orelocation == (arelent **) NULL); | |
1828 | ||
1829 | stubcount = 0; | |
1830 | for (l = powerpc_stubs; l != (struct powerpc_stub *) NULL; l = l->next) | |
1831 | ++stubcount; | |
1832 | relocs = (arelent **) xmalloc (stubcount * sizeof (arelent *)); | |
1833 | ||
1834 | r = relocs; | |
1835 | for (l = powerpc_stubs; l != (struct powerpc_stub *) NULL; l = l->next) | |
1836 | { | |
1837 | arelent *reloc; | |
1838 | ||
1839 | /* Adjust the first instruction to use the right TOC index. */ | |
1840 | bfd_put_32 (outbfd, (bfd_vma) powerpc_stub_insns[0] + l->toc_index, buf); | |
1841 | ||
1842 | /* Write this stub out. */ | |
1843 | if (! bfd_set_section_contents (outbfd, | |
1844 | bfd_get_section (l->start), | |
1845 | buf, | |
1846 | l->start->value, | |
1847 | POWERPC_STUB_SIZE)) | |
1848 | bfd_fatal (_("writing stub")); | |
1849 | ||
1850 | /* Create a new reloc for the TOC entry. */ | |
1851 | reloc = (arelent *) xmalloc (sizeof (arelent)); | |
1852 | reloc->sym_ptr_ptr = &l->reloc; | |
1853 | reloc->address = l->toc_index + got_sec->output_offset; | |
1854 | reloc->addend = 0; | |
1855 | reloc->howto = bfd_reloc_type_lookup (inbfd, BFD_RELOC_32); | |
0af11b59 | 1856 | |
252b5132 RH |
1857 | *r++ = reloc; |
1858 | } | |
1859 | ||
1860 | bfd_set_reloc (outbfd, got_sec->output_section, relocs, stubcount); | |
1861 | } | |
1862 | ||
1863 | /* Adjust relocation entries for PowerPC NetWare. We do not output | |
1864 | TOC relocations. The object code already contains the offset from | |
1865 | the TOC pointer. When the function is called, the TOC register, | |
1866 | r2, will be set to the correct TOC value, so there is no need for | |
1867 | any further reloc. */ | |
1868 | ||
252b5132 | 1869 | static void |
2da42df6 | 1870 | powerpc_mangle_relocs (bfd *outbfd, asection *insec, |
44a6d974 | 1871 | arelent ***relocs_ptr, |
2da42df6 AJ |
1872 | long *reloc_count_ptr, char *contents, |
1873 | bfd_size_type contents_size ATTRIBUTE_UNUSED) | |
252b5132 RH |
1874 | { |
1875 | reloc_howto_type *toc_howto; | |
1876 | long reloc_count; | |
44a6d974 NC |
1877 | arelent **relocs; |
1878 | long i; | |
252b5132 RH |
1879 | |
1880 | toc_howto = bfd_reloc_type_lookup (insec->owner, BFD_RELOC_PPC_TOC16); | |
1881 | if (toc_howto == (reloc_howto_type *) NULL) | |
1882 | abort (); | |
1883 | ||
1884 | /* If this is the .got section, clear out all the contents beyond | |
1885 | the initial size. We must do this here because copy_sections is | |
1886 | going to write out whatever we return in the contents field. */ | |
1887 | if (strcmp (bfd_get_section_name (insec->owner, insec), ".got") == 0) | |
1888 | memset (contents + powerpc_initial_got_size, 0, | |
135dfb4a | 1889 | (size_t) (bfd_get_section_size (insec) - powerpc_initial_got_size)); |
252b5132 RH |
1890 | |
1891 | reloc_count = *reloc_count_ptr; | |
1892 | relocs = *relocs_ptr; | |
1893 | for (i = 0; i < reloc_count; i++) | |
1894 | { | |
1895 | arelent *rel; | |
1896 | asymbol *sym; | |
1897 | bfd_vma sym_value; | |
1898 | ||
1899 | rel = *relocs++; | |
1900 | sym = *rel->sym_ptr_ptr; | |
1901 | ||
1902 | /* Convert any relocs against the .bss section into relocs | |
1903 | against the .data section. */ | |
1904 | if (strcmp (bfd_get_section_name (outbfd, bfd_get_section (sym)), | |
1905 | NLM_UNINITIALIZED_DATA_NAME) == 0) | |
1906 | { | |
1907 | asection *datasec; | |
1908 | ||
1909 | datasec = bfd_get_section_by_name (outbfd, | |
1910 | NLM_INITIALIZED_DATA_NAME); | |
1911 | if (datasec != NULL) | |
1912 | { | |
1913 | rel->addend += (bfd_get_section_vma (outbfd, | |
1914 | bfd_get_section (sym)) | |
1915 | + sym->value); | |
1916 | rel->sym_ptr_ptr = datasec->symbol_ptr_ptr; | |
1917 | sym = *rel->sym_ptr_ptr; | |
1918 | } | |
1919 | } | |
1920 | ||
1921 | /* We must be able to resolve all PC relative relocs at this | |
1922 | point. If we get a branch to an undefined symbol we build a | |
1923 | stub, since NetWare will resolve undefined symbols into a | |
1924 | pointer to a function descriptor. */ | |
1925 | if (rel->howto->pc_relative) | |
1926 | { | |
1927 | /* This check for whether a symbol is in the same section as | |
1928 | the reloc will be wrong if there is a PC relative reloc | |
1929 | between two sections both of which were placed in the | |
1930 | same output section. This should not happen. */ | |
1931 | if (bfd_get_section (sym) != insec->output_section) | |
37cc8ec1 AM |
1932 | non_fatal (_("unresolved PC relative reloc against %s"), |
1933 | bfd_asymbol_name (sym)); | |
252b5132 RH |
1934 | else |
1935 | { | |
1936 | bfd_vma val; | |
1937 | ||
1938 | assert (rel->howto->size == 2 && rel->howto->pcrel_offset); | |
1939 | val = bfd_get_32 (outbfd, (bfd_byte *) contents + rel->address); | |
1940 | val = ((val &~ rel->howto->dst_mask) | |
1941 | | (((val & rel->howto->src_mask) | |
1942 | + (sym->value - rel->address) | |
1943 | + rel->addend) | |
1944 | & rel->howto->dst_mask)); | |
1945 | bfd_put_32 (outbfd, val, (bfd_byte *) contents + rel->address); | |
1946 | ||
1947 | /* If this reloc is against an stubbed symbol and the | |
1948 | next instruction is | |
1949 | cror 31,31,31 | |
1950 | then we replace the next instruction with | |
1951 | lwz r2,20(r1) | |
1952 | This reloads the TOC pointer after a stub call. */ | |
1953 | if (bfd_asymbol_name (sym)[0] == '.' | |
1954 | && (sym->flags & BSF_DYNAMIC) != 0 | |
1955 | && (bfd_get_32 (outbfd, | |
1956 | (bfd_byte *) contents + rel->address + 4) | |
1957 | == 0x4ffffb82)) /* cror 31,31,31 */ | |
1958 | bfd_put_32 (outbfd, (bfd_vma) 0x80410014, /* lwz r2,20(r1) */ | |
1959 | (bfd_byte *) contents + rel->address + 4); | |
1960 | ||
1961 | --*reloc_count_ptr; | |
1962 | --relocs; | |
1963 | memmove (relocs, relocs + 1, | |
1964 | (size_t) ((reloc_count - 1) * sizeof (arelent *))); | |
1965 | continue; | |
1966 | } | |
1967 | } | |
1968 | ||
1969 | /* When considering a TOC reloc, we do not want to include the | |
1970 | symbol value. The symbol will be start of the TOC section | |
1971 | (which is named .got). We do want to include the addend. */ | |
1972 | if (rel->howto == toc_howto) | |
1973 | sym_value = 0; | |
1974 | else | |
1975 | sym_value = sym->value; | |
1976 | ||
1977 | /* If this is a relocation against a symbol with a value, or | |
1978 | there is a reloc addend, we need to update the addend in the | |
1979 | object file. */ | |
1980 | if (sym_value + rel->addend != 0) | |
1981 | { | |
1982 | bfd_vma val; | |
1983 | ||
1984 | switch (rel->howto->size) | |
1985 | { | |
1986 | case 1: | |
1987 | val = bfd_get_16 (outbfd, | |
1988 | (bfd_byte *) contents + rel->address); | |
1989 | val = ((val &~ rel->howto->dst_mask) | |
1990 | | (((val & rel->howto->src_mask) | |
1991 | + sym_value | |
1992 | + rel->addend) | |
1993 | & rel->howto->dst_mask)); | |
1994 | if ((bfd_signed_vma) val < - 0x8000 | |
1995 | || (bfd_signed_vma) val >= 0x8000) | |
37cc8ec1 AM |
1996 | non_fatal (_("overflow when adjusting relocation against %s"), |
1997 | bfd_asymbol_name (sym)); | |
252b5132 RH |
1998 | bfd_put_16 (outbfd, val, (bfd_byte *) contents + rel->address); |
1999 | break; | |
2000 | ||
2001 | case 2: | |
2002 | val = bfd_get_32 (outbfd, | |
2003 | (bfd_byte *) contents + rel->address); | |
2004 | val = ((val &~ rel->howto->dst_mask) | |
2005 | | (((val & rel->howto->src_mask) | |
2006 | + sym_value | |
2007 | + rel->addend) | |
2008 | & rel->howto->dst_mask)); | |
2009 | bfd_put_32 (outbfd, val, (bfd_byte *) contents + rel->address); | |
2010 | break; | |
2011 | ||
2012 | default: | |
2013 | abort (); | |
2014 | } | |
2015 | ||
2016 | if (! bfd_is_und_section (bfd_get_section (sym))) | |
2017 | rel->sym_ptr_ptr = bfd_get_section (sym)->symbol_ptr_ptr; | |
2018 | rel->addend = 0; | |
2019 | } | |
2020 | ||
2021 | /* Now that we have incorporated the addend, remove any TOC | |
2022 | relocs. */ | |
2023 | if (rel->howto == toc_howto) | |
2024 | { | |
2025 | --*reloc_count_ptr; | |
2026 | --relocs; | |
2027 | memmove (relocs, relocs + 1, | |
2028 | (size_t) ((reloc_count - i) * sizeof (arelent *))); | |
2029 | continue; | |
2030 | } | |
2031 | ||
2032 | rel->address += insec->output_offset; | |
2033 | } | |
2034 | } | |
2035 | ||
2036 | #endif /* NLMCONV_POWERPC */ | |
2037 | \f | |
2038 | /* Name of linker. */ | |
2039 | #ifndef LD_NAME | |
2040 | #define LD_NAME "ld" | |
2041 | #endif | |
2042 | ||
252b5132 RH |
2043 | /* The user has specified several input files. Invoke the linker to |
2044 | link them all together, and convert and delete the resulting output | |
2045 | file. */ | |
2046 | ||
2047 | static char * | |
44a6d974 | 2048 | link_inputs (struct string_list *inputs, char *ld, char * map_file) |
252b5132 RH |
2049 | { |
2050 | size_t c; | |
2051 | struct string_list *q; | |
2052 | char **argv; | |
2053 | size_t i; | |
2054 | int pid; | |
2055 | int status; | |
2056 | char *errfmt; | |
2057 | char *errarg; | |
2058 | ||
2059 | c = 0; | |
2060 | for (q = inputs; q != NULL; q = q->next) | |
2061 | ++c; | |
2062 | ||
44a6d974 | 2063 | argv = (char **) alloca ((c + 7) * sizeof (char *)); |
252b5132 RH |
2064 | |
2065 | #ifndef __MSDOS__ | |
2066 | if (ld == NULL) | |
2067 | { | |
2068 | char *p; | |
2069 | ||
2070 | /* Find the linker to invoke based on how nlmconv was run. */ | |
2071 | p = program_name + strlen (program_name); | |
2072 | while (p != program_name) | |
2073 | { | |
2074 | if (p[-1] == '/') | |
2075 | { | |
2076 | ld = (char *) xmalloc (p - program_name + strlen (LD_NAME) + 1); | |
2077 | memcpy (ld, program_name, p - program_name); | |
2078 | strcpy (ld + (p - program_name), LD_NAME); | |
2079 | break; | |
2080 | } | |
2081 | --p; | |
2082 | } | |
2083 | } | |
2084 | #endif | |
2085 | ||
2086 | if (ld == NULL) | |
2087 | ld = (char *) LD_NAME; | |
2088 | ||
5ee1baa2 | 2089 | unlink_on_exit = make_temp_file (".O"); |
252b5132 RH |
2090 | |
2091 | argv[0] = ld; | |
2092 | argv[1] = (char *) "-Ur"; | |
2093 | argv[2] = (char *) "-o"; | |
2094 | argv[3] = unlink_on_exit; | |
44a6d974 NC |
2095 | /* If we have been given the name of a mapfile and that |
2096 | name is not 'stderr' then pass it on to the linker. */ | |
2097 | if (map_file | |
2098 | && * map_file | |
2099 | && strcmp (map_file, "stderr") == 0) | |
2100 | { | |
2101 | argv[4] = (char *) "-Map"; | |
2102 | argv[5] = map_file; | |
2103 | i = 6; | |
2104 | } | |
2105 | else | |
2106 | i = 4; | |
2107 | ||
252b5132 RH |
2108 | for (q = inputs; q != NULL; q = q->next, i++) |
2109 | argv[i] = q->string; | |
2110 | argv[i] = NULL; | |
2111 | ||
2112 | if (debug) | |
2113 | { | |
2114 | for (i = 0; argv[i] != NULL; i++) | |
2115 | fprintf (stderr, " %s", argv[i]); | |
2116 | fprintf (stderr, "\n"); | |
2117 | } | |
2118 | ||
2119 | pid = pexecute (ld, argv, program_name, (char *) NULL, &errfmt, &errarg, | |
2120 | PEXECUTE_SEARCH | PEXECUTE_ONE); | |
2121 | if (pid == -1) | |
2122 | { | |
2123 | fprintf (stderr, _("%s: execution of %s failed: "), program_name, ld); | |
2124 | fprintf (stderr, errfmt, errarg); | |
2125 | unlink (unlink_on_exit); | |
2126 | exit (1); | |
2127 | } | |
2128 | ||
2129 | if (pwait (pid, &status, 0) < 0) | |
2130 | { | |
2131 | perror ("pwait"); | |
2132 | unlink (unlink_on_exit); | |
2133 | exit (1); | |
2134 | } | |
2135 | ||
2136 | if (status != 0) | |
2137 | { | |
37cc8ec1 | 2138 | non_fatal (_("Execution of %s failed"), ld); |
252b5132 RH |
2139 | unlink (unlink_on_exit); |
2140 | exit (1); | |
2141 | } | |
2142 | ||
2143 | return unlink_on_exit; | |
2144 | } |