Commit | Line | Data |
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c3e964b9 FF |
1 | /* NLM (NetWare Loadable Module) executable support for BFD. |
2 | Copyright (C) 1993 Free Software Foundation, Inc. | |
3 | ||
4 | Written by Fred Fish @ Cygnus Support, using ELF support as the | |
5 | template. | |
6 | ||
7 | This file is part of BFD, the Binary File Descriptor library. | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
22 | ||
23 | #include <string.h> /* For strrchr and friends */ | |
24 | #include "bfd.h" | |
25 | #include "sysdep.h" | |
26 | #include "libbfd.h" | |
27 | #include "libnlm.h" | |
28 | ||
b6e7553c FF |
29 | /* The functions in this file do not use the names they appear to use. |
30 | This file is actually compiled multiple times, once for each size | |
31 | of NLM target we are using. At each size we use a different name, | |
32 | constructed by the macro nlmNAME. For example, the function which | |
33 | is named nlm_symbol_type below is actually named nlm32_symbol_type | |
34 | in the final executable. */ | |
35 | ||
36 | #define Nlm_External_Fixed_Header NlmNAME(External_Fixed_Header) | |
37 | #define Nlm_External_Version_Header NlmNAME(External_Version_Header) | |
38 | #define Nlm_External_Copyright_Header NlmNAME(External_Copyright_Header) | |
39 | #define Nlm_External_Extended_Header NlmNAME(External_Extended_Header) | |
40 | #define Nlm_External_Custom_Header NlmNAME(External_Custom_Header) | |
41 | ||
42 | #define nlm_symbol_type nlmNAME(symbol_type) | |
43 | #define nlm_get_symtab_upper_bound nlmNAME(get_symtab_upper_bound) | |
44 | #define nlm_get_symtab nlmNAME(get_symtab) | |
45 | #define nlm_make_empty_symbol nlmNAME(make_empty_symbol) | |
46 | #define nlm_print_symbol nlmNAME(print_symbol) | |
47 | #define nlm_get_symbol_info nlmNAME(get_symbol_info) | |
48 | #define nlm_get_reloc_upper_bound nlmNAME(get_reloc_upper_bound) | |
49 | #define nlm_canonicalize_reloc nlmNAME(canonicalize_reloc) | |
50 | #define nlm_object_p nlmNAME(object_p) | |
51 | #define nlm_set_section_contents nlmNAME(set_section_contents) | |
52 | #define nlm_write_object_contents nlmNAME(write_object_contents) | |
c3e964b9 | 53 | |
cdbfad1c ILT |
54 | #define nlm_swap_fixed_header_in(abfd,src,dst) \ |
55 | (nlm_swap_fixed_header_in_func(abfd))(abfd,src,dst) | |
56 | #define nlm_swap_fixed_header_out(abfd,src,dst) \ | |
57 | (nlm_swap_fixed_header_out_func(abfd))(abfd,src,dst) | |
58 | ||
c3e964b9 FF |
59 | /* Forward declarations of static functions */ |
60 | ||
61 | static boolean add_bfd_section | |
62 | PARAMS ((bfd *, char *, file_ptr, bfd_size_type, flagword)); | |
b6e7553c FF |
63 | static boolean nlm_swap_variable_header_in |
64 | PARAMS ((bfd *)); | |
65 | static boolean nlm_swap_variable_header_out | |
66 | PARAMS ((bfd *)); | |
67 | static boolean find_nonzero | |
68 | PARAMS ((PTR, size_t)); | |
69 | static boolean nlm_swap_auxiliary_headers_in | |
70 | PARAMS ((bfd *)); | |
71 | static boolean nlm_swap_auxiliary_headers_out | |
72 | PARAMS ((bfd *)); | |
73 | static boolean nlm_slurp_symbol_table | |
74 | PARAMS ((bfd *)); | |
75 | static boolean nlm_slurp_reloc_fixups | |
76 | PARAMS ((bfd *)); | |
77 | static boolean nlm_compute_section_file_positions | |
78 | PARAMS ((bfd *)); | |
79 | static int nlm_external_reloc_compare | |
80 | PARAMS ((const void *, const void *)); | |
c3e964b9 FF |
81 | |
82 | /* Should perhaps use put_offset, put_word, etc. For now, the two versions | |
83 | can be handled by explicitly specifying 32 bits or "the long type". */ | |
84 | #if ARCH_SIZE == 64 | |
85 | #define put_word bfd_h_put_64 | |
86 | #define get_word bfd_h_get_64 | |
87 | #endif | |
88 | #if ARCH_SIZE == 32 | |
89 | #define put_word bfd_h_put_32 | |
90 | #define get_word bfd_h_get_32 | |
91 | #endif | |
92 | ||
93 | bfd_target * | |
94 | DEFUN (nlm_object_p, (abfd), bfd * abfd) | |
95 | { | |
cdbfad1c ILT |
96 | struct nlm_obj_tdata *preserved_tdata = nlm_tdata (abfd); |
97 | boolean (*backend_object_p) PARAMS ((bfd *)); | |
80425e6c | 98 | PTR x_fxdhdr = NULL; |
cdbfad1c ILT |
99 | Nlm_Internal_Fixed_Header *i_fxdhdrp; |
100 | const char *signature; | |
b6e7553c | 101 | enum bfd_architecture arch; |
c3e964b9 | 102 | |
cdbfad1c ILT |
103 | /* Some NLM formats have a prefix before the standard NLM fixed |
104 | header. */ | |
105 | backend_object_p = nlm_backend_object_p_func (abfd); | |
106 | if (backend_object_p) | |
107 | { | |
108 | if (! (*backend_object_p) (abfd)) | |
109 | goto got_wrong_format_error; | |
110 | } | |
111 | ||
c3e964b9 FF |
112 | /* Read in the fixed length portion of the NLM header in external format. */ |
113 | ||
80425e6c JK |
114 | x_fxdhdr = (PTR) malloc (nlm_fixed_header_size (abfd)); |
115 | if (x_fxdhdr == NULL) | |
116 | { | |
117 | bfd_set_error (bfd_error_no_memory); | |
118 | goto got_no_match; | |
119 | } | |
cdbfad1c ILT |
120 | |
121 | if (bfd_read ((PTR) x_fxdhdr, nlm_fixed_header_size (abfd), 1, abfd) != | |
122 | nlm_fixed_header_size (abfd)) | |
9783e04a | 123 | goto got_wrong_format_error; |
c3e964b9 | 124 | |
cdbfad1c ILT |
125 | /* Allocate an instance of the nlm_obj_tdata structure and hook it up to |
126 | the tdata pointer in the bfd. */ | |
c3e964b9 | 127 | |
cdbfad1c ILT |
128 | nlm_tdata (abfd) = (struct nlm_obj_tdata *) |
129 | bfd_zalloc (abfd, sizeof (struct nlm_obj_tdata)); | |
130 | if (nlm_tdata (abfd) == NULL) | |
c3e964b9 | 131 | { |
80425e6c | 132 | bfd_set_error (bfd_error_no_memory); |
cdbfad1c | 133 | goto got_no_match; |
c3e964b9 FF |
134 | } |
135 | ||
cdbfad1c ILT |
136 | i_fxdhdrp = nlm_fixed_header (abfd); |
137 | nlm_swap_fixed_header_in (abfd, x_fxdhdr, i_fxdhdrp); | |
138 | ||
139 | /* Check to see if we have an NLM file for this backend by matching | |
140 | the NLM signature. */ | |
141 | ||
142 | signature = nlm_signature (abfd); | |
143 | if (signature != NULL | |
144 | && *signature != '\0' | |
145 | && strncmp ((char *) i_fxdhdrp->signature, signature, | |
146 | NLM_SIGNATURE_SIZE) != 0) | |
147 | goto got_wrong_format_error; | |
148 | ||
c3e964b9 FF |
149 | /* There's no supported way to discover the endianess of an NLM, so test for |
150 | a sane version number after doing byte swapping appropriate for this | |
151 | XVEC. (Hack alert!) */ | |
152 | ||
cdbfad1c ILT |
153 | if (i_fxdhdrp->version > 0xFFFF) |
154 | goto got_wrong_format_error; | |
c3e964b9 FF |
155 | |
156 | /* There's no supported way to check for 32 bit versus 64 bit addresses, | |
157 | so ignore this distinction for now. (FIXME) */ | |
158 | ||
45a78ebb ILT |
159 | /* FIXME: Any return(NULL) exits below here will leak memory (tdata). |
160 | And a memory leak also means we lost the real tdata info we wanted | |
161 | to save, because it was in the leaked memory. */ | |
c3e964b9 FF |
162 | |
163 | /* Swap in the rest of the fixed length header. */ | |
164 | ||
c3e964b9 FF |
165 | if (!nlm_swap_variable_header_in (abfd) |
166 | || !nlm_swap_auxiliary_headers_in (abfd) | |
167 | || !add_bfd_section (abfd, NLM_CODE_NAME, | |
168 | i_fxdhdrp -> codeImageOffset, | |
169 | i_fxdhdrp -> codeImageSize, | |
b6e7553c FF |
170 | (SEC_CODE | SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS |
171 | | SEC_RELOC)) | |
c3e964b9 FF |
172 | || !add_bfd_section (abfd, NLM_INITIALIZED_DATA_NAME, |
173 | i_fxdhdrp -> dataImageOffset, | |
174 | i_fxdhdrp -> dataImageSize, | |
b6e7553c FF |
175 | (SEC_DATA | SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS |
176 | | SEC_RELOC)) | |
c3e964b9 FF |
177 | || !add_bfd_section (abfd, NLM_UNINITIALIZED_DATA_NAME, |
178 | (file_ptr) 0, | |
179 | i_fxdhdrp -> uninitializedDataSize, | |
b6e7553c | 180 | SEC_ALLOC)) |
cdbfad1c | 181 | goto got_wrong_format_error; |
c3e964b9 | 182 | |
b6e7553c FF |
183 | if (nlm_fixed_header (abfd)->numberOfRelocationFixups != 0 |
184 | || nlm_fixed_header (abfd)->numberOfExternalReferences != 0) | |
185 | abfd->flags |= HAS_RELOC; | |
186 | if (nlm_fixed_header (abfd)->numberOfPublics != 0 | |
45a78ebb ILT |
187 | || nlm_fixed_header (abfd)->numberOfDebugRecords != 0 |
188 | || nlm_fixed_header (abfd)->numberOfExternalReferences != 0) | |
b6e7553c FF |
189 | abfd->flags |= HAS_SYMS; |
190 | ||
191 | arch = nlm_architecture (abfd); | |
192 | if (arch != bfd_arch_unknown) | |
193 | bfd_default_set_arch_mach (abfd, arch, (unsigned long) 0); | |
194 | ||
80425e6c JK |
195 | if (x_fxdhdr != NULL) |
196 | free (x_fxdhdr); | |
c3e964b9 | 197 | return (abfd -> xvec); |
cdbfad1c ILT |
198 | |
199 | got_wrong_format_error: | |
80425e6c | 200 | bfd_set_error (bfd_error_wrong_format); |
cdbfad1c ILT |
201 | got_no_match: |
202 | nlm_tdata (abfd) = preserved_tdata; | |
80425e6c JK |
203 | if (x_fxdhdr != NULL) |
204 | free (x_fxdhdr); | |
cdbfad1c | 205 | return (NULL); |
c3e964b9 FF |
206 | } |
207 | ||
208 | /* Add a section to the bfd. */ | |
209 | ||
210 | static boolean | |
211 | DEFUN (add_bfd_section, (abfd, name, offset, size, flags), | |
212 | bfd *abfd AND | |
213 | char *name AND | |
214 | file_ptr offset AND | |
215 | bfd_size_type size AND | |
216 | flagword flags) | |
217 | { | |
218 | asection *newsect; | |
219 | ||
220 | newsect = bfd_make_section (abfd, name); | |
221 | if (newsect == NULL) | |
222 | { | |
223 | return (false); | |
224 | } | |
225 | newsect -> vma = 0; /* NLM's are relocatable. */ | |
226 | newsect -> _raw_size = size; | |
227 | newsect -> filepos = offset; | |
228 | newsect -> flags = flags; | |
229 | newsect -> alignment_power = bfd_log2 (0); /* FIXME */ | |
230 | return (true); | |
231 | } | |
232 | ||
c3e964b9 FF |
233 | /* Read and swap in the variable length header. All the fields must |
234 | exist in the NLM, and must exist in the order they are read here. */ | |
235 | ||
236 | static boolean | |
237 | DEFUN (nlm_swap_variable_header_in, (abfd), | |
238 | bfd * abfd) | |
239 | { | |
b6e7553c | 240 | unsigned char temp [NLM_TARGET_LONG_SIZE]; |
c3e964b9 FF |
241 | |
242 | /* Read the description length and text members. */ | |
243 | ||
244 | if (bfd_read ((PTR) &nlm_variable_header (abfd) -> descriptionLength, | |
245 | sizeof (nlm_variable_header (abfd) -> descriptionLength), | |
246 | 1, abfd) != | |
247 | sizeof (nlm_variable_header (abfd) -> descriptionLength)) | |
248 | { | |
80425e6c | 249 | bfd_set_error (bfd_error_system_call); |
c3e964b9 FF |
250 | return (false); |
251 | } | |
252 | if (bfd_read ((PTR) nlm_variable_header (abfd) -> descriptionText, | |
253 | nlm_variable_header (abfd) -> descriptionLength + 1, | |
254 | 1, abfd) != | |
255 | nlm_variable_header (abfd) -> descriptionLength + 1) | |
256 | { | |
80425e6c | 257 | bfd_set_error (bfd_error_system_call); |
c3e964b9 FF |
258 | return (false); |
259 | } | |
260 | ||
261 | /* Read and convert the stackSize field. */ | |
262 | ||
f03b1f0d | 263 | if (bfd_read ((PTR) temp, sizeof (temp), 1, abfd) != sizeof (temp)) |
c3e964b9 | 264 | { |
80425e6c | 265 | bfd_set_error (bfd_error_system_call); |
c3e964b9 FF |
266 | return (false); |
267 | } | |
268 | nlm_variable_header (abfd) -> stackSize = get_word (abfd, (bfd_byte *) temp); | |
269 | ||
270 | /* Read and convert the reserved field. */ | |
271 | ||
f03b1f0d | 272 | if (bfd_read ((PTR) temp, sizeof (temp), 1, abfd) != sizeof (temp)) |
c3e964b9 | 273 | { |
80425e6c | 274 | bfd_set_error (bfd_error_system_call); |
c3e964b9 FF |
275 | return (false); |
276 | } | |
277 | nlm_variable_header (abfd) -> reserved = get_word (abfd, (bfd_byte *) temp); | |
278 | ||
279 | /* Read the oldThreadName field. This field is a fixed length string. */ | |
280 | ||
281 | if (bfd_read ((PTR) nlm_variable_header (abfd) -> oldThreadName, | |
282 | sizeof (nlm_variable_header (abfd) -> oldThreadName), | |
283 | 1, abfd) != | |
284 | sizeof (nlm_variable_header (abfd) -> oldThreadName)) | |
285 | { | |
80425e6c | 286 | bfd_set_error (bfd_error_system_call); |
c3e964b9 FF |
287 | return (false); |
288 | } | |
289 | ||
290 | /* Read the screen name length and text members. */ | |
291 | ||
292 | if (bfd_read ((PTR) &nlm_variable_header (abfd) -> screenNameLength, | |
293 | sizeof (nlm_variable_header (abfd) -> screenNameLength), | |
294 | 1, abfd) != | |
295 | sizeof (nlm_variable_header (abfd) -> screenNameLength)) | |
296 | { | |
80425e6c | 297 | bfd_set_error (bfd_error_system_call); |
c3e964b9 FF |
298 | return (false); |
299 | } | |
300 | if (bfd_read ((PTR) nlm_variable_header (abfd) -> screenName, | |
301 | nlm_variable_header (abfd) -> screenNameLength + 1, | |
302 | 1, abfd) != | |
303 | nlm_variable_header (abfd) -> screenNameLength + 1) | |
304 | { | |
80425e6c | 305 | bfd_set_error (bfd_error_system_call); |
c3e964b9 FF |
306 | return (false); |
307 | } | |
308 | ||
309 | /* Read the thread name length and text members. */ | |
310 | ||
311 | if (bfd_read ((PTR) &nlm_variable_header (abfd) -> threadNameLength, | |
312 | sizeof (nlm_variable_header (abfd) -> threadNameLength), | |
313 | 1, abfd) != | |
314 | sizeof (nlm_variable_header (abfd) -> threadNameLength)) | |
315 | { | |
80425e6c | 316 | bfd_set_error (bfd_error_system_call); |
c3e964b9 FF |
317 | return (false); |
318 | } | |
319 | if (bfd_read ((PTR) nlm_variable_header (abfd) -> threadName, | |
320 | nlm_variable_header (abfd) -> threadNameLength + 1, | |
321 | 1, abfd) != | |
322 | nlm_variable_header (abfd) -> threadNameLength + 1) | |
323 | { | |
80425e6c | 324 | bfd_set_error (bfd_error_system_call); |
c3e964b9 FF |
325 | return (false); |
326 | } | |
327 | return (true); | |
328 | } | |
329 | ||
b6e7553c FF |
330 | /* Swap and write out the variable length header. All the fields must |
331 | exist in the NLM, and must exist in this order. */ | |
332 | ||
333 | static boolean | |
334 | DEFUN (nlm_swap_variable_header_out, (abfd), | |
335 | bfd * abfd) | |
336 | { | |
337 | unsigned char temp [NLM_TARGET_LONG_SIZE]; | |
338 | ||
339 | /* Write the description length and text members. */ | |
340 | ||
341 | if (bfd_write ((PTR) &nlm_variable_header (abfd) -> descriptionLength, | |
342 | sizeof (nlm_variable_header (abfd) -> descriptionLength), | |
343 | 1, abfd) != | |
344 | sizeof (nlm_variable_header (abfd) -> descriptionLength)) | |
345 | { | |
80425e6c | 346 | bfd_set_error (bfd_error_system_call); |
b6e7553c FF |
347 | return (false); |
348 | } | |
349 | if (bfd_write ((PTR) nlm_variable_header (abfd) -> descriptionText, | |
350 | nlm_variable_header (abfd) -> descriptionLength + 1, | |
351 | 1, abfd) != | |
352 | nlm_variable_header (abfd) -> descriptionLength + 1) | |
353 | { | |
80425e6c | 354 | bfd_set_error (bfd_error_system_call); |
b6e7553c FF |
355 | return (false); |
356 | } | |
357 | ||
358 | /* Convert and write the stackSize field. */ | |
359 | ||
360 | put_word (abfd, (bfd_vma) nlm_variable_header (abfd) -> stackSize, | |
361 | (bfd_byte *) temp); | |
362 | if (bfd_write ((PTR) temp, sizeof (temp), 1, abfd) != sizeof (temp)) | |
363 | { | |
80425e6c | 364 | bfd_set_error (bfd_error_system_call); |
b6e7553c FF |
365 | return (false); |
366 | } | |
367 | ||
368 | /* Convert and write the reserved field. */ | |
369 | ||
370 | put_word (abfd, (bfd_vma) nlm_variable_header (abfd) -> reserved, | |
371 | (bfd_byte *) temp); | |
372 | if (bfd_write ((PTR) temp, sizeof (temp), 1, abfd) != sizeof (temp)) | |
373 | { | |
80425e6c | 374 | bfd_set_error (bfd_error_system_call); |
b6e7553c FF |
375 | return (false); |
376 | } | |
377 | ||
378 | /* Write the oldThreadName field. This field is a fixed length string. */ | |
379 | ||
380 | if (bfd_write ((PTR) nlm_variable_header (abfd) -> oldThreadName, | |
381 | sizeof (nlm_variable_header (abfd) -> oldThreadName), | |
382 | 1, abfd) != | |
383 | sizeof (nlm_variable_header (abfd) -> oldThreadName)) | |
384 | { | |
80425e6c | 385 | bfd_set_error (bfd_error_system_call); |
b6e7553c FF |
386 | return (false); |
387 | } | |
388 | ||
389 | /* Write the screen name length and text members. */ | |
390 | ||
391 | if (bfd_write ((PTR) &nlm_variable_header (abfd) -> screenNameLength, | |
392 | sizeof (nlm_variable_header (abfd) -> screenNameLength), | |
393 | 1, abfd) != | |
394 | sizeof (nlm_variable_header (abfd) -> screenNameLength)) | |
395 | { | |
80425e6c | 396 | bfd_set_error (bfd_error_system_call); |
b6e7553c FF |
397 | return (false); |
398 | } | |
399 | if (bfd_write ((PTR) nlm_variable_header (abfd) -> screenName, | |
400 | nlm_variable_header (abfd) -> screenNameLength + 1, | |
401 | 1, abfd) != | |
402 | nlm_variable_header (abfd) -> screenNameLength + 1) | |
403 | { | |
80425e6c | 404 | bfd_set_error (bfd_error_system_call); |
b6e7553c FF |
405 | return (false); |
406 | } | |
407 | ||
408 | /* Write the thread name length and text members. */ | |
409 | ||
410 | if (bfd_write ((PTR) &nlm_variable_header (abfd) -> threadNameLength, | |
411 | sizeof (nlm_variable_header (abfd) -> threadNameLength), | |
412 | 1, abfd) != | |
413 | sizeof (nlm_variable_header (abfd) -> threadNameLength)) | |
414 | { | |
80425e6c | 415 | bfd_set_error (bfd_error_system_call); |
b6e7553c FF |
416 | return (false); |
417 | } | |
418 | if (bfd_write ((PTR) nlm_variable_header (abfd) -> threadName, | |
419 | nlm_variable_header (abfd) -> threadNameLength + 1, | |
420 | 1, abfd) != | |
421 | nlm_variable_header (abfd) -> threadNameLength + 1) | |
422 | { | |
80425e6c | 423 | bfd_set_error (bfd_error_system_call); |
b6e7553c FF |
424 | return (false); |
425 | } | |
426 | return (true); | |
427 | } | |
428 | ||
c3e964b9 FF |
429 | /* Read and swap in the contents of all the auxiliary headers. Because of |
430 | the braindead design, we have to do strcmps on strings of indeterminate | |
431 | length to figure out what each auxiliary header is. Even worse, we have | |
432 | no way of knowing how many auxiliary headers there are or where the end | |
433 | of the auxiliary headers are, except by finding something that doesn't | |
434 | look like a known auxiliary header. This means that the first new type | |
435 | of auxiliary header added will break all existing tools that don't | |
436 | recognize it. */ | |
437 | ||
438 | static boolean | |
439 | DEFUN (nlm_swap_auxiliary_headers_in, (abfd), | |
440 | bfd * abfd) | |
441 | { | |
cdbfad1c | 442 | char tempstr [16]; |
c3e964b9 FF |
443 | long position; |
444 | ||
445 | for (;;) | |
446 | { | |
447 | position = bfd_tell (abfd); | |
448 | if (bfd_read ((PTR) tempstr, sizeof (tempstr), 1, abfd) != | |
449 | sizeof (tempstr)) | |
450 | { | |
80425e6c | 451 | bfd_set_error (bfd_error_system_call); |
c3e964b9 FF |
452 | return (false); |
453 | } | |
454 | if (bfd_seek (abfd, position, SEEK_SET) == -1) | |
455 | { | |
80425e6c | 456 | bfd_set_error (bfd_error_system_call); |
c3e964b9 FF |
457 | return (false); |
458 | } | |
459 | if (strncmp (tempstr, "VeRsIoN#", 8) == 0) | |
460 | { | |
461 | Nlm_External_Version_Header thdr; | |
462 | if (bfd_read ((PTR) &thdr, sizeof (thdr), 1, abfd) != sizeof (thdr)) | |
463 | { | |
80425e6c | 464 | bfd_set_error (bfd_error_system_call); |
c3e964b9 FF |
465 | return (false); |
466 | } | |
467 | memcpy (nlm_version_header (abfd) -> stamp, thdr.stamp, | |
468 | sizeof (thdr.stamp)); | |
469 | nlm_version_header (abfd) -> majorVersion = | |
470 | get_word (abfd, (bfd_byte *) thdr.majorVersion); | |
471 | nlm_version_header (abfd) -> minorVersion = | |
472 | get_word (abfd, (bfd_byte *) thdr.minorVersion); | |
473 | nlm_version_header (abfd) -> revision = | |
474 | get_word (abfd, (bfd_byte *) thdr.revision); | |
475 | nlm_version_header (abfd) -> year = | |
476 | get_word (abfd, (bfd_byte *) thdr.year); | |
477 | nlm_version_header (abfd) -> month = | |
478 | get_word (abfd, (bfd_byte *) thdr.month); | |
479 | nlm_version_header (abfd) -> day = | |
480 | get_word (abfd, (bfd_byte *) thdr.day); | |
481 | } | |
482 | else if (strncmp (tempstr, "MeSsAgEs", 8) == 0) | |
483 | { | |
484 | Nlm_External_Extended_Header thdr; | |
485 | if (bfd_read ((PTR) &thdr, sizeof (thdr), 1, abfd) != sizeof (thdr)) | |
486 | { | |
80425e6c | 487 | bfd_set_error (bfd_error_system_call); |
c3e964b9 FF |
488 | return (false); |
489 | } | |
490 | memcpy (nlm_extended_header (abfd) -> stamp, thdr.stamp, | |
491 | sizeof (thdr.stamp)); | |
492 | nlm_extended_header (abfd) -> languageID = | |
493 | get_word (abfd, (bfd_byte *) thdr.languageID); | |
494 | nlm_extended_header (abfd) -> messageFileOffset = | |
495 | get_word (abfd, (bfd_byte *) thdr.messageFileOffset); | |
496 | nlm_extended_header (abfd) -> messageFileLength = | |
497 | get_word (abfd, (bfd_byte *) thdr.messageFileLength); | |
498 | nlm_extended_header (abfd) -> messageCount = | |
499 | get_word (abfd, (bfd_byte *) thdr.messageCount); | |
500 | nlm_extended_header (abfd) -> helpFileOffset = | |
501 | get_word (abfd, (bfd_byte *) thdr.helpFileOffset); | |
502 | nlm_extended_header (abfd) -> helpFileLength = | |
503 | get_word (abfd, (bfd_byte *) thdr.helpFileLength); | |
504 | nlm_extended_header (abfd) -> RPCDataOffset = | |
505 | get_word (abfd, (bfd_byte *) thdr.RPCDataOffset); | |
506 | nlm_extended_header (abfd) -> RPCDataLength = | |
507 | get_word (abfd, (bfd_byte *) thdr.RPCDataLength); | |
508 | nlm_extended_header (abfd) -> sharedCodeOffset = | |
509 | get_word (abfd, (bfd_byte *) thdr.sharedCodeOffset); | |
510 | nlm_extended_header (abfd) -> sharedCodeLength = | |
511 | get_word (abfd, (bfd_byte *) thdr.sharedCodeLength); | |
512 | nlm_extended_header (abfd) -> sharedDataOffset = | |
513 | get_word (abfd, (bfd_byte *) thdr.sharedDataOffset); | |
514 | nlm_extended_header (abfd) -> sharedDataLength = | |
515 | get_word (abfd, (bfd_byte *) thdr.sharedDataLength); | |
516 | nlm_extended_header (abfd) -> sharedRelocationFixupOffset = | |
517 | get_word (abfd, (bfd_byte *) thdr.sharedRelocationFixupOffset); | |
518 | nlm_extended_header (abfd) -> sharedRelocationFixupCount = | |
519 | get_word (abfd, (bfd_byte *) thdr.sharedRelocationFixupCount); | |
520 | nlm_extended_header (abfd) -> sharedExternalReferenceOffset = | |
521 | get_word (abfd, (bfd_byte *) thdr.sharedExternalReferenceOffset); | |
522 | nlm_extended_header (abfd) -> sharedExternalReferenceCount = | |
523 | get_word (abfd, (bfd_byte *) thdr.sharedExternalReferenceCount); | |
524 | nlm_extended_header (abfd) -> sharedPublicsOffset = | |
525 | get_word (abfd, (bfd_byte *) thdr.sharedPublicsOffset); | |
526 | nlm_extended_header (abfd) -> sharedPublicsCount = | |
527 | get_word (abfd, (bfd_byte *) thdr.sharedPublicsCount); | |
cdbfad1c ILT |
528 | nlm_extended_header (abfd) -> sharedDebugRecordOffset = |
529 | get_word (abfd, (bfd_byte *) thdr.sharedDebugRecordOffset); | |
530 | nlm_extended_header (abfd) -> sharedDebugRecordCount = | |
531 | get_word (abfd, (bfd_byte *) thdr.sharedDebugRecordCount); | |
c3e964b9 FF |
532 | nlm_extended_header (abfd) -> SharedInitializationOffset = |
533 | get_word (abfd, (bfd_byte *) thdr.sharedInitializationOffset); | |
534 | nlm_extended_header (abfd) -> SharedExitProcedureOffset = | |
535 | get_word (abfd, (bfd_byte *) thdr.SharedExitProcedureOffset); | |
536 | nlm_extended_header (abfd) -> productID = | |
537 | get_word (abfd, (bfd_byte *) thdr.productID); | |
538 | nlm_extended_header (abfd) -> reserved0 = | |
539 | get_word (abfd, (bfd_byte *) thdr.reserved0); | |
540 | nlm_extended_header (abfd) -> reserved1 = | |
541 | get_word (abfd, (bfd_byte *) thdr.reserved1); | |
542 | nlm_extended_header (abfd) -> reserved2 = | |
543 | get_word (abfd, (bfd_byte *) thdr.reserved2); | |
544 | nlm_extended_header (abfd) -> reserved3 = | |
545 | get_word (abfd, (bfd_byte *) thdr.reserved3); | |
546 | nlm_extended_header (abfd) -> reserved4 = | |
547 | get_word (abfd, (bfd_byte *) thdr.reserved4); | |
548 | nlm_extended_header (abfd) -> reserved5 = | |
549 | get_word (abfd, (bfd_byte *) thdr.reserved5); | |
550 | } | |
551 | else if (strncmp (tempstr, "CuStHeAd", 8) == 0) | |
552 | { | |
553 | Nlm_External_Custom_Header thdr; | |
554 | if (bfd_read ((PTR) &thdr, sizeof (thdr), 1, abfd) != sizeof (thdr)) | |
555 | { | |
80425e6c | 556 | bfd_set_error (bfd_error_system_call); |
c3e964b9 FF |
557 | return (false); |
558 | } | |
559 | memcpy (nlm_custom_header (abfd) -> stamp, thdr.stamp, | |
560 | sizeof (thdr.stamp)); | |
561 | nlm_custom_header (abfd) -> dataLength = | |
562 | get_word (abfd, (bfd_byte *) thdr.dataLength); | |
563 | nlm_custom_header (abfd) -> debugRecOffset = | |
564 | get_word (abfd, (bfd_byte *) thdr.debugRecOffset); | |
565 | nlm_custom_header (abfd) -> debugRecLength = | |
566 | get_word (abfd, (bfd_byte *) thdr.debugRecLength); | |
567 | } | |
568 | else if (strncmp (tempstr, "CoPyRiGhT=", 10) == 0) | |
569 | { | |
9783e04a | 570 | if (bfd_read ((PTR) nlm_copyright_header (abfd)->stamp, |
45a78ebb ILT |
571 | sizeof (nlm_copyright_header (abfd)->stamp), |
572 | 1, abfd) | |
573 | != sizeof (nlm_copyright_header (abfd)->stamp)) | |
574 | { | |
80425e6c | 575 | bfd_set_error (bfd_error_system_call); |
45a78ebb ILT |
576 | return (false); |
577 | } | |
578 | if (bfd_read ((PTR) &(nlm_copyright_header (abfd) | |
579 | ->copyrightMessageLength), | |
580 | 1, 1, abfd) != 1) | |
c3e964b9 | 581 | { |
80425e6c | 582 | bfd_set_error (bfd_error_system_call); |
c3e964b9 FF |
583 | return (false); |
584 | } | |
c3e964b9 FF |
585 | /* The copyright message is a variable length string. */ |
586 | if (bfd_read ((PTR) nlm_copyright_header (abfd) -> copyrightMessage, | |
587 | nlm_copyright_header (abfd) -> copyrightMessageLength + 1, | |
588 | 1, abfd) != | |
589 | nlm_copyright_header (abfd) -> copyrightMessageLength + 1) | |
590 | { | |
80425e6c | 591 | bfd_set_error (bfd_error_system_call); |
c3e964b9 FF |
592 | return (false); |
593 | } | |
594 | } | |
595 | else | |
596 | { | |
597 | break; | |
598 | } | |
599 | } | |
b6e7553c FF |
600 | return (true); |
601 | } | |
602 | ||
603 | /* Return whether there is a non-zero byte in a memory block. */ | |
604 | ||
605 | static boolean | |
606 | find_nonzero (buf, size) | |
607 | PTR buf; | |
608 | size_t size; | |
609 | { | |
610 | char *p = (char *) buf; | |
611 | ||
612 | while (size-- != 0) | |
613 | if (*p++ != 0) | |
614 | return true; | |
615 | return false; | |
616 | } | |
617 | ||
618 | /* Swap out the contents of the auxiliary headers. We create those | |
619 | auxiliary headers which have been set non-zero. We do not require | |
620 | the caller to set up the stamp fields. */ | |
621 | ||
622 | static boolean | |
623 | nlm_swap_auxiliary_headers_out (abfd) | |
624 | bfd *abfd; | |
625 | { | |
626 | /* Write out the version header if there is one. */ | |
627 | if (find_nonzero ((PTR) nlm_version_header (abfd), | |
628 | sizeof (Nlm_Internal_Version_Header))) | |
629 | { | |
630 | Nlm_External_Version_Header thdr; | |
631 | ||
632 | memcpy (thdr.stamp, "VeRsIoN#", 8); | |
633 | put_word (abfd, (bfd_vma) nlm_version_header (abfd) -> majorVersion, | |
634 | (bfd_byte *) thdr.majorVersion); | |
635 | put_word (abfd, (bfd_vma) nlm_version_header (abfd) -> minorVersion, | |
636 | (bfd_byte *) thdr.minorVersion); | |
637 | put_word (abfd, (bfd_vma) nlm_version_header (abfd) -> revision, | |
638 | (bfd_byte *) thdr.revision); | |
639 | put_word (abfd, (bfd_vma) nlm_version_header (abfd) -> year, | |
640 | (bfd_byte *) thdr.year); | |
641 | put_word (abfd, (bfd_vma) nlm_version_header (abfd) -> month, | |
642 | (bfd_byte *) thdr.month); | |
643 | put_word (abfd, (bfd_vma) nlm_version_header (abfd) -> day, | |
644 | (bfd_byte *) thdr.day); | |
645 | if (bfd_write ((PTR) &thdr, sizeof (thdr), 1, abfd) != sizeof (thdr)) | |
646 | { | |
80425e6c | 647 | bfd_set_error (bfd_error_system_call); |
b6e7553c FF |
648 | return false; |
649 | } | |
650 | } | |
651 | ||
652 | /* Write out the extended header if there is one. */ | |
653 | if (find_nonzero ((PTR) nlm_extended_header (abfd), | |
654 | sizeof (Nlm_Internal_Extended_Header))) | |
655 | { | |
656 | Nlm_External_Extended_Header thdr; | |
657 | ||
658 | memcpy (thdr.stamp, "MeSsAgEs", 8); | |
659 | put_word (abfd, | |
660 | (bfd_vma) nlm_extended_header (abfd) -> languageID, | |
661 | (bfd_byte *) thdr.languageID); | |
662 | put_word (abfd, | |
663 | (bfd_vma) nlm_extended_header (abfd) -> messageFileOffset, | |
664 | (bfd_byte *) thdr.messageFileOffset); | |
665 | put_word (abfd, | |
666 | (bfd_vma) nlm_extended_header (abfd) -> messageFileLength, | |
667 | (bfd_byte *) thdr.messageFileLength); | |
668 | put_word (abfd, | |
669 | (bfd_vma) nlm_extended_header (abfd) -> messageCount, | |
670 | (bfd_byte *) thdr.messageCount); | |
671 | put_word (abfd, | |
672 | (bfd_vma) nlm_extended_header (abfd) -> helpFileOffset, | |
673 | (bfd_byte *) thdr.helpFileOffset); | |
674 | put_word (abfd, | |
675 | (bfd_vma) nlm_extended_header (abfd) -> helpFileLength, | |
676 | (bfd_byte *) thdr.helpFileLength); | |
677 | put_word (abfd, | |
678 | (bfd_vma) nlm_extended_header (abfd) -> RPCDataOffset, | |
679 | (bfd_byte *) thdr.RPCDataOffset); | |
680 | put_word (abfd, | |
681 | (bfd_vma) nlm_extended_header (abfd) -> RPCDataLength, | |
682 | (bfd_byte *) thdr.RPCDataLength); | |
683 | put_word (abfd, | |
684 | (bfd_vma) nlm_extended_header (abfd) -> sharedCodeOffset, | |
685 | (bfd_byte *) thdr.sharedCodeOffset); | |
686 | put_word (abfd, | |
687 | (bfd_vma) nlm_extended_header (abfd) -> sharedCodeLength, | |
688 | (bfd_byte *) thdr.sharedCodeLength); | |
689 | put_word (abfd, | |
690 | (bfd_vma) nlm_extended_header (abfd) -> sharedDataOffset, | |
691 | (bfd_byte *) thdr.sharedDataOffset); | |
692 | put_word (abfd, | |
693 | (bfd_vma) nlm_extended_header (abfd) -> sharedDataLength, | |
694 | (bfd_byte *) thdr.sharedDataLength); | |
695 | put_word (abfd, | |
696 | (bfd_vma) nlm_extended_header (abfd) -> sharedRelocationFixupOffset, | |
697 | (bfd_byte *) thdr.sharedRelocationFixupOffset); | |
698 | put_word (abfd, | |
699 | (bfd_vma) nlm_extended_header (abfd) -> sharedRelocationFixupCount, | |
700 | (bfd_byte *) thdr.sharedRelocationFixupCount); | |
701 | put_word (abfd, | |
702 | (bfd_vma) nlm_extended_header (abfd) -> sharedExternalReferenceOffset, | |
703 | (bfd_byte *) thdr.sharedExternalReferenceOffset); | |
704 | put_word (abfd, | |
705 | (bfd_vma) nlm_extended_header (abfd) -> sharedExternalReferenceCount, | |
706 | (bfd_byte *) thdr.sharedExternalReferenceCount); | |
707 | put_word (abfd, | |
708 | (bfd_vma) nlm_extended_header (abfd) -> sharedPublicsOffset, | |
709 | (bfd_byte *) thdr.sharedPublicsOffset); | |
710 | put_word (abfd, | |
711 | (bfd_vma) nlm_extended_header (abfd) -> sharedPublicsCount, | |
712 | (bfd_byte *) thdr.sharedPublicsCount); | |
cdbfad1c ILT |
713 | put_word (abfd, |
714 | (bfd_vma) nlm_extended_header (abfd) -> sharedDebugRecordOffset, | |
715 | (bfd_byte *) thdr.sharedDebugRecordOffset); | |
716 | put_word (abfd, | |
717 | (bfd_vma) nlm_extended_header (abfd) -> sharedDebugRecordCount, | |
718 | (bfd_byte *) thdr.sharedDebugRecordCount); | |
b6e7553c FF |
719 | put_word (abfd, |
720 | (bfd_vma) nlm_extended_header (abfd) -> SharedInitializationOffset, | |
721 | (bfd_byte *) thdr.sharedInitializationOffset); | |
722 | put_word (abfd, | |
723 | (bfd_vma) nlm_extended_header (abfd) -> SharedExitProcedureOffset, | |
724 | (bfd_byte *) thdr.SharedExitProcedureOffset); | |
725 | put_word (abfd, | |
726 | (bfd_vma) nlm_extended_header (abfd) -> productID, | |
727 | (bfd_byte *) thdr.productID); | |
728 | put_word (abfd, | |
729 | (bfd_vma) nlm_extended_header (abfd) -> reserved0, | |
730 | (bfd_byte *) thdr.reserved0); | |
731 | put_word (abfd, | |
732 | (bfd_vma) nlm_extended_header (abfd) -> reserved1, | |
733 | (bfd_byte *) thdr.reserved1); | |
734 | put_word (abfd, | |
735 | (bfd_vma) nlm_extended_header (abfd) -> reserved2, | |
736 | (bfd_byte *) thdr.reserved2); | |
737 | put_word (abfd, | |
738 | (bfd_vma) nlm_extended_header (abfd) -> reserved3, | |
739 | (bfd_byte *) thdr.reserved3); | |
740 | put_word (abfd, | |
741 | (bfd_vma) nlm_extended_header (abfd) -> reserved4, | |
742 | (bfd_byte *) thdr.reserved4); | |
743 | put_word (abfd, | |
744 | (bfd_vma) nlm_extended_header (abfd) -> reserved5, | |
745 | (bfd_byte *) thdr.reserved5); | |
746 | if (bfd_write ((PTR) &thdr, sizeof (thdr), 1, abfd) != sizeof (thdr)) | |
747 | { | |
80425e6c | 748 | bfd_set_error (bfd_error_system_call); |
b6e7553c FF |
749 | return false; |
750 | } | |
751 | } | |
752 | ||
753 | /* Write out the custom header if there is one. */ | |
754 | if (find_nonzero ((PTR) nlm_custom_header (abfd), | |
755 | sizeof (Nlm_Internal_Custom_Header))) | |
756 | { | |
757 | Nlm_External_Custom_Header thdr; | |
758 | ||
759 | /* Right now we assume the custom header is always the suggested | |
760 | format for alternate debugging records. */ | |
761 | BFD_ASSERT (nlm_custom_header (abfd) -> dataLength == 8); | |
762 | ||
763 | memcpy (thdr.stamp, "CuStHeAd", 8); | |
764 | put_word (abfd, (bfd_vma) nlm_custom_header (abfd) -> dataLength, | |
765 | (bfd_byte *) thdr.dataLength); | |
766 | put_word (abfd, (bfd_vma) nlm_custom_header (abfd) -> debugRecOffset, | |
767 | (bfd_byte *) thdr.debugRecOffset); | |
768 | put_word (abfd, (bfd_vma) nlm_custom_header (abfd) -> debugRecLength, | |
769 | (bfd_byte *) thdr.debugRecLength); | |
770 | if (bfd_write ((PTR) &thdr, sizeof (thdr), 1, abfd) != sizeof (thdr)) | |
771 | { | |
80425e6c | 772 | bfd_set_error (bfd_error_system_call); |
b6e7553c FF |
773 | return false; |
774 | } | |
775 | } | |
776 | ||
777 | /* Write out the copyright header if there is one. */ | |
778 | if (find_nonzero ((PTR) nlm_copyright_header (abfd), | |
779 | sizeof (Nlm_Internal_Copyright_Header))) | |
780 | { | |
781 | Nlm_External_Copyright_Header thdr; | |
782 | ||
783 | memcpy (thdr.stamp, "CoPyRiGhT=", 10); | |
45a78ebb ILT |
784 | if (bfd_write ((PTR) thdr.stamp, sizeof (thdr.stamp), 1, abfd) |
785 | != sizeof (thdr.stamp)) | |
786 | { | |
80425e6c | 787 | bfd_set_error (bfd_error_system_call); |
45a78ebb ILT |
788 | return false; |
789 | } | |
790 | thdr.copyrightMessageLength[0] = | |
791 | nlm_copyright_header (abfd)->copyrightMessageLength; | |
792 | if (bfd_write ((PTR) thdr.copyrightMessageLength, 1, 1, abfd) != 1) | |
793 | { | |
80425e6c | 794 | bfd_set_error (bfd_error_system_call); |
45a78ebb ILT |
795 | return false; |
796 | } | |
b6e7553c FF |
797 | /* The copyright message is a variable length string. */ |
798 | if (bfd_write ((PTR) nlm_copyright_header (abfd) -> copyrightMessage, | |
799 | nlm_copyright_header (abfd) -> copyrightMessageLength + 1, | |
800 | 1, abfd) != | |
801 | nlm_copyright_header (abfd) -> copyrightMessageLength + 1) | |
802 | { | |
80425e6c | 803 | bfd_set_error (bfd_error_system_call); |
b6e7553c FF |
804 | return false; |
805 | } | |
806 | } | |
807 | ||
808 | return true; | |
c3e964b9 FF |
809 | } |
810 | ||
811 | /* We read the NLM's public symbols and use it to generate a bfd symbol | |
812 | table (hey, it's better than nothing) on a one-for-one basis. Thus | |
813 | use the number of public symbols as the number of bfd symbols we will | |
814 | have once we actually get around to reading them in. | |
815 | ||
816 | Return the number of bytes required to hold the symtab vector, based on | |
817 | the count plus 1, since we will NULL terminate the vector allocated based | |
818 | on this size. */ | |
819 | ||
820 | unsigned int | |
821 | DEFUN (nlm_get_symtab_upper_bound, (abfd), bfd * abfd) | |
822 | { | |
823 | Nlm_Internal_Fixed_Header *i_fxdhdrp; /* Nlm file header, internal form */ | |
824 | unsigned int symcount; | |
825 | unsigned int symtab_size = 0; | |
826 | ||
827 | i_fxdhdrp = nlm_fixed_header (abfd); | |
b6e7553c | 828 | symcount = (i_fxdhdrp -> numberOfPublics |
45a78ebb | 829 | + i_fxdhdrp -> numberOfDebugRecords |
b6e7553c | 830 | + i_fxdhdrp -> numberOfExternalReferences); |
c3e964b9 FF |
831 | symtab_size = (symcount + 1) * (sizeof (asymbol)); |
832 | return (symtab_size); | |
833 | } | |
834 | ||
835 | /* Note that bfd_get_symcount is guaranteed to be zero if slurping the | |
836 | symbol table fails. */ | |
837 | ||
838 | unsigned int | |
b6e7553c FF |
839 | nlm_get_symtab (abfd, alocation) |
840 | bfd *abfd; | |
841 | asymbol **alocation; | |
c3e964b9 | 842 | { |
b6e7553c FF |
843 | nlm_symbol_type *symbase; |
844 | bfd_size_type counter = 0; | |
845 | ||
846 | if (nlm_slurp_symbol_table (abfd) == false) | |
847 | return 0; | |
848 | symbase = nlm_get_symbols (abfd); | |
849 | while (counter < bfd_get_symcount (abfd)) | |
850 | { | |
851 | *alocation++ = &symbase->symbol; | |
852 | symbase++; | |
853 | counter++; | |
854 | } | |
855 | *alocation = (asymbol *) NULL; | |
856 | return bfd_get_symcount (abfd); | |
c3e964b9 FF |
857 | } |
858 | ||
b6e7553c FF |
859 | /* Make an NLM symbol. There is nothing special to do here. */ |
860 | ||
c3e964b9 | 861 | asymbol * |
b6e7553c FF |
862 | nlm_make_empty_symbol (abfd) |
863 | bfd * abfd; | |
c3e964b9 | 864 | { |
b6e7553c FF |
865 | nlm_symbol_type *new; |
866 | ||
867 | new = (nlm_symbol_type *) bfd_zalloc (abfd, sizeof (nlm_symbol_type)); | |
9783e04a DM |
868 | if (new) |
869 | new->symbol.the_bfd = abfd; | |
b6e7553c | 870 | return &new->symbol; |
c3e964b9 FF |
871 | } |
872 | ||
b6e7553c FF |
873 | /* Get symbol information. */ |
874 | ||
c3e964b9 | 875 | void |
b6e7553c FF |
876 | nlm_get_symbol_info (ignore_abfd, symbol, ret) |
877 | bfd * ignore_abfd; | |
878 | asymbol * symbol; | |
879 | symbol_info * ret; | |
c3e964b9 FF |
880 | { |
881 | bfd_symbol_info (symbol, ret); | |
882 | } | |
883 | ||
b6e7553c FF |
884 | /* Print symbol information. */ |
885 | ||
886 | void | |
887 | nlm_print_symbol (abfd, afile, symbol, how) | |
888 | bfd *abfd; | |
889 | PTR afile; | |
890 | asymbol *symbol; | |
891 | bfd_print_symbol_type how; | |
c3e964b9 | 892 | { |
b6e7553c FF |
893 | FILE *file = (FILE *) afile; |
894 | ||
895 | switch (how) | |
896 | { | |
897 | case bfd_print_symbol_name: | |
898 | case bfd_print_symbol_more: | |
899 | if (symbol->name) | |
900 | fprintf (file,"%s", symbol->name); | |
901 | break; | |
902 | case bfd_print_symbol_all: | |
903 | bfd_print_symbol_vandf ((PTR) file, symbol); | |
904 | fprintf (file, " %-5s", symbol->section->name); | |
905 | if (symbol->name) | |
906 | fprintf (file," %s", symbol->name); | |
907 | break; | |
908 | } | |
c3e964b9 FF |
909 | } |
910 | ||
911 | /* Slurp in nlm symbol table. | |
912 | ||
913 | In the external (in-file) form, NLM export records are variable length, | |
914 | with the following form: | |
915 | ||
916 | 1 byte length of the symbol name (N) | |
917 | N bytes the symbol name | |
918 | 4 bytes the symbol offset from start of it's section | |
919 | ||
45a78ebb ILT |
920 | We also read in the debugging symbols and import records. Import |
921 | records are treated as undefined symbols. As we read the import | |
922 | records we also read in the associated reloc information, which is | |
923 | attached to the symbol. | |
b6e7553c FF |
924 | |
925 | The bfd symbols are copied to SYMPTRS. | |
c3e964b9 FF |
926 | |
927 | When we return, the bfd symcount is either zero or contains the correct | |
928 | number of symbols. | |
929 | */ | |
930 | ||
931 | static boolean | |
b6e7553c FF |
932 | nlm_slurp_symbol_table (abfd) |
933 | bfd *abfd; | |
c3e964b9 FF |
934 | { |
935 | Nlm_Internal_Fixed_Header *i_fxdhdrp; /* Nlm file header, internal form */ | |
b6e7553c FF |
936 | bfd_size_type totsymcount; /* Number of NLM symbols */ |
937 | bfd_size_type symcount; /* Counter of NLM symbols */ | |
c3e964b9 | 938 | nlm_symbol_type *sym; /* Pointer to current bfd symbol */ |
45a78ebb ILT |
939 | unsigned char symlength; /* Symbol length read into here */ |
940 | unsigned char symtype; /* Type of debugging symbol */ | |
b6e7553c | 941 | bfd_byte temp[NLM_TARGET_LONG_SIZE]; /* Symbol offsets read into here */ |
cdbfad1c ILT |
942 | boolean (*read_import_func) PARAMS ((bfd *, nlm_symbol_type *)); |
943 | boolean (*set_public_section_func) PARAMS ((bfd *, nlm_symbol_type *)); | |
c3e964b9 | 944 | |
b6e7553c FF |
945 | if (nlm_get_symbols (abfd) != NULL) |
946 | return (true); | |
c3e964b9 FF |
947 | |
948 | /* Read each raw NLM symbol, using the information to create a canonical bfd | |
949 | symbol table entry. | |
950 | ||
951 | Note that we allocate the initial bfd canonical symbol buffer based on a | |
952 | one-to-one mapping of the NLM symbols to canonical symbols. We actually | |
953 | use all the NLM symbols, so there will be no space left over at the end. | |
954 | When we have all the symbols, we build the caller's pointer vector. */ | |
955 | ||
956 | abfd -> symcount = 0; | |
957 | i_fxdhdrp = nlm_fixed_header (abfd); | |
b6e7553c | 958 | totsymcount = (i_fxdhdrp -> numberOfPublics |
45a78ebb | 959 | + i_fxdhdrp -> numberOfDebugRecords |
b6e7553c FF |
960 | + i_fxdhdrp -> numberOfExternalReferences); |
961 | if (totsymcount == 0) | |
c3e964b9 FF |
962 | { |
963 | return (true); | |
964 | } | |
b6e7553c | 965 | |
c3e964b9 FF |
966 | if (bfd_seek (abfd, i_fxdhdrp -> publicsOffset, SEEK_SET) == -1) |
967 | { | |
80425e6c | 968 | bfd_set_error (bfd_error_system_call); |
c3e964b9 FF |
969 | return (false); |
970 | } | |
b6e7553c FF |
971 | |
972 | sym = ((nlm_symbol_type *) | |
973 | bfd_zalloc (abfd, totsymcount * sizeof (nlm_symbol_type))); | |
9783e04a DM |
974 | if (!sym) |
975 | { | |
80425e6c | 976 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
977 | return false; |
978 | } | |
b6e7553c | 979 | nlm_set_symbols (abfd, sym); |
c3e964b9 FF |
980 | |
981 | /* We use the bfd's symcount directly as the control count, so that early | |
982 | termination of the loop leaves the symcount correct for the symbols that | |
983 | were read. */ | |
984 | ||
cdbfad1c | 985 | set_public_section_func = nlm_set_public_section_func (abfd); |
b6e7553c | 986 | symcount = i_fxdhdrp -> numberOfPublics; |
c3e964b9 FF |
987 | while (abfd -> symcount < symcount) |
988 | { | |
989 | if (bfd_read ((PTR) &symlength, sizeof (symlength), 1, abfd) | |
990 | != sizeof (symlength)) | |
991 | { | |
80425e6c | 992 | bfd_set_error (bfd_error_system_call); |
c3e964b9 FF |
993 | return (false); |
994 | } | |
995 | sym -> symbol.the_bfd = abfd; | |
996 | sym -> symbol.name = bfd_alloc (abfd, symlength + 1); | |
9783e04a DM |
997 | if (!sym -> symbol.name) |
998 | { | |
80425e6c | 999 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
1000 | return false; |
1001 | } | |
c3e964b9 FF |
1002 | if (bfd_read ((PTR) sym -> symbol.name, symlength, 1, abfd) |
1003 | != symlength) | |
1004 | { | |
80425e6c | 1005 | bfd_set_error (bfd_error_system_call); |
c3e964b9 FF |
1006 | return (false); |
1007 | } | |
cdbfad1c ILT |
1008 | /* Cast away const. */ |
1009 | ((char *) (sym -> symbol.name))[symlength] = '\0'; | |
b6e7553c | 1010 | if (bfd_read ((PTR) temp, sizeof (temp), 1, abfd) != sizeof (temp)) |
c3e964b9 | 1011 | { |
80425e6c | 1012 | bfd_set_error (bfd_error_system_call); |
c3e964b9 FF |
1013 | return (false); |
1014 | } | |
1015 | sym -> symbol.flags = BSF_GLOBAL | BSF_EXPORT; | |
b6e7553c | 1016 | sym -> symbol.value = get_word (abfd, temp); |
cdbfad1c | 1017 | if (set_public_section_func) |
c3e964b9 | 1018 | { |
cdbfad1c ILT |
1019 | /* Most backends can use the code below, but unfortunately |
1020 | some use a different scheme. */ | |
1021 | if ((*set_public_section_func) (abfd, sym) == false) | |
1022 | return false; | |
c3e964b9 FF |
1023 | } |
1024 | else | |
1025 | { | |
cdbfad1c ILT |
1026 | if (sym -> symbol.value & NLM_HIBIT) |
1027 | { | |
1028 | sym -> symbol.value &= ~NLM_HIBIT; | |
1029 | sym -> symbol.flags |= BSF_FUNCTION; | |
1030 | sym -> symbol.section = | |
1031 | bfd_get_section_by_name (abfd, NLM_CODE_NAME); | |
1032 | } | |
1033 | else | |
1034 | { | |
1035 | sym -> symbol.section = | |
1036 | bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_NAME); | |
1037 | } | |
c3e964b9 | 1038 | } |
b6e7553c | 1039 | sym -> rcnt = 0; |
c3e964b9 FF |
1040 | abfd -> symcount++; |
1041 | sym++; | |
1042 | } | |
1043 | ||
45a78ebb ILT |
1044 | /* Read the debugging records. */ |
1045 | ||
1046 | if (i_fxdhdrp -> numberOfDebugRecords > 0) | |
1047 | { | |
1048 | if (bfd_seek (abfd, i_fxdhdrp -> debugInfoOffset, SEEK_SET) == -1) | |
1049 | { | |
80425e6c | 1050 | bfd_set_error (bfd_error_system_call); |
45a78ebb ILT |
1051 | return (false); |
1052 | } | |
1053 | ||
1054 | symcount += i_fxdhdrp -> numberOfDebugRecords; | |
1055 | while (abfd -> symcount < symcount) | |
1056 | { | |
1057 | if ((bfd_read ((PTR) &symtype, sizeof (symtype), 1, abfd) | |
1058 | != sizeof (symtype)) | |
1059 | || bfd_read ((PTR) temp, sizeof (temp), 1, abfd) != sizeof (temp) | |
1060 | || (bfd_read ((PTR) &symlength, sizeof (symlength), 1, abfd) | |
1061 | != sizeof (symlength))) | |
1062 | { | |
80425e6c | 1063 | bfd_set_error (bfd_error_system_call); |
45a78ebb ILT |
1064 | return false; |
1065 | } | |
1066 | sym -> symbol.the_bfd = abfd; | |
1067 | sym -> symbol.name = bfd_alloc (abfd, symlength + 1); | |
9783e04a DM |
1068 | if (!sym -> symbol.name) |
1069 | { | |
80425e6c | 1070 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
1071 | return false; |
1072 | } | |
45a78ebb ILT |
1073 | if (bfd_read ((PTR) sym -> symbol.name, symlength, 1, abfd) |
1074 | != symlength) | |
1075 | { | |
80425e6c | 1076 | bfd_set_error (bfd_error_system_call); |
45a78ebb ILT |
1077 | return (false); |
1078 | } | |
cdbfad1c ILT |
1079 | /* Cast away const. */ |
1080 | ((char *) (sym -> symbol.name))[symlength] = '\0'; | |
45a78ebb ILT |
1081 | sym -> symbol.flags = BSF_LOCAL; |
1082 | sym -> symbol.value = get_word (abfd, temp); | |
1083 | if (symtype == 0) | |
1084 | { | |
1085 | sym -> symbol.section = | |
1086 | bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_NAME); | |
1087 | } | |
1088 | else if (symtype == 1) | |
1089 | { | |
1090 | sym -> symbol.flags |= BSF_FUNCTION; | |
1091 | sym -> symbol.section = | |
1092 | bfd_get_section_by_name (abfd, NLM_CODE_NAME); | |
1093 | } | |
1094 | else | |
1095 | { | |
1096 | sym -> symbol.section = &bfd_abs_section; | |
1097 | } | |
1098 | sym -> rcnt = 0; | |
1099 | abfd -> symcount++; | |
1100 | sym++; | |
1101 | } | |
1102 | } | |
1103 | ||
b6e7553c FF |
1104 | /* Read in the import records. We can only do this if we know how |
1105 | to read relocs for this target. */ | |
c3e964b9 | 1106 | |
cdbfad1c ILT |
1107 | read_import_func = nlm_read_import_func (abfd); |
1108 | if (read_import_func != NULL) | |
c3e964b9 | 1109 | { |
b6e7553c FF |
1110 | if (bfd_seek (abfd, i_fxdhdrp -> externalReferencesOffset, SEEK_SET) |
1111 | == -1) | |
c3e964b9 | 1112 | { |
80425e6c | 1113 | bfd_set_error (bfd_error_system_call); |
b6e7553c FF |
1114 | return (false); |
1115 | } | |
1116 | ||
1117 | symcount += i_fxdhdrp -> numberOfExternalReferences; | |
1118 | while (abfd -> symcount < symcount) | |
1119 | { | |
cdbfad1c ILT |
1120 | if ((*read_import_func) (abfd, sym) == false) |
1121 | return false; | |
c3e964b9 | 1122 | sym++; |
cdbfad1c | 1123 | abfd->symcount++; |
c3e964b9 | 1124 | } |
c3e964b9 FF |
1125 | } |
1126 | ||
1127 | return (true); | |
1128 | } | |
b6e7553c FF |
1129 | \f |
1130 | /* Get the relocs for an NLM file. There are two types of relocs. | |
1131 | Imports are relocs against symbols defined in other NLM files. We | |
1132 | treat these as relocs against global symbols. Relocation fixups | |
1133 | are internal relocs. | |
1134 | ||
1135 | The actual format used to store the relocs is machine specific. */ | |
1136 | ||
1137 | /* Read in the relocation fixup information. This is stored in | |
1138 | nlm_relocation_fixups, an array of arelent structures, and | |
1139 | nlm_relocation_fixup_secs, an array of section pointers. The | |
1140 | section pointers are needed because the relocs are not sorted by | |
1141 | section. */ | |
1142 | ||
1143 | static boolean | |
1144 | nlm_slurp_reloc_fixups (abfd) | |
1145 | bfd *abfd; | |
1146 | { | |
1147 | boolean (*read_func) PARAMS ((bfd *, nlm_symbol_type *, asection **, | |
1148 | arelent *)); | |
1149 | bfd_size_type count; | |
1150 | arelent *rels; | |
1151 | asection **secs; | |
1152 | ||
1153 | if (nlm_relocation_fixups (abfd) != NULL) | |
1154 | return true; | |
1155 | read_func = nlm_read_reloc_func (abfd); | |
1156 | if (read_func == NULL) | |
1157 | return true; | |
1158 | ||
1159 | if (bfd_seek (abfd, nlm_fixed_header (abfd)->relocationFixupOffset, | |
1160 | SEEK_SET) != 0) | |
1161 | { | |
80425e6c | 1162 | bfd_set_error (bfd_error_system_call); |
b6e7553c FF |
1163 | return false; |
1164 | } | |
1165 | ||
1166 | count = nlm_fixed_header (abfd)->numberOfRelocationFixups; | |
1167 | rels = (arelent *) bfd_alloc (abfd, count * sizeof (arelent)); | |
1168 | secs = (asection **) bfd_alloc (abfd, count * sizeof (asection *)); | |
1169 | if (rels == NULL || secs == NULL) | |
1170 | { | |
80425e6c | 1171 | bfd_set_error (bfd_error_no_memory); |
b6e7553c FF |
1172 | return false; |
1173 | } | |
1174 | nlm_relocation_fixups (abfd) = rels; | |
1175 | nlm_relocation_fixup_secs (abfd) = secs; | |
1176 | ||
1177 | /* We have to read piece by piece, because we don't know how large | |
1178 | the machine specific reloc information is. */ | |
1179 | while (count-- != 0) | |
1180 | { | |
1181 | if ((*read_func) (abfd, (nlm_symbol_type *) NULL, secs, rels) == false) | |
1182 | { | |
1183 | nlm_relocation_fixups (abfd) = NULL; | |
1184 | nlm_relocation_fixup_secs (abfd) = NULL; | |
1185 | return false; | |
1186 | } | |
1187 | ++secs; | |
1188 | ++rels; | |
1189 | } | |
1190 | ||
1191 | return true; | |
1192 | } | |
1193 | ||
1194 | /* Get the number of relocs. This really just returns an upper bound, | |
1195 | since it does not attempt to distinguish them based on the section. | |
1196 | That will be handled when they are actually read. */ | |
1197 | ||
1198 | unsigned int | |
1199 | nlm_get_reloc_upper_bound (abfd, sec) | |
1200 | bfd *abfd; | |
1201 | asection *sec; | |
1202 | { | |
1203 | nlm_symbol_type *syms; | |
1204 | bfd_size_type count; | |
1205 | unsigned int ret; | |
1206 | ||
1207 | /* If we don't know how to read relocs, just return 0. */ | |
1208 | if (nlm_read_reloc_func (abfd) == NULL) | |
1209 | return 0; | |
1210 | /* Make sure we have either the code or the data section. */ | |
1211 | if ((bfd_get_section_flags (abfd, sec) & (SEC_CODE | SEC_DATA)) == 0) | |
1212 | return 0; | |
1213 | ||
1214 | syms = nlm_get_symbols (abfd); | |
1215 | if (syms == NULL) | |
1216 | { | |
8b977377 | 1217 | if (nlm_slurp_symbol_table (abfd) == false) |
b6e7553c FF |
1218 | return 0; |
1219 | syms = nlm_get_symbols (abfd); | |
1220 | } | |
1221 | ||
1222 | ret = nlm_fixed_header (abfd)->numberOfRelocationFixups; | |
1223 | ||
1224 | count = bfd_get_symcount (abfd); | |
1225 | while (count-- != 0) | |
1226 | { | |
1227 | ret += syms->rcnt; | |
1228 | ++syms; | |
1229 | } | |
1230 | ||
1231 | return (ret + 1) * sizeof (arelent *); | |
1232 | } | |
1233 | ||
1234 | /* Get the relocs themselves. */ | |
1235 | ||
1236 | unsigned int | |
1237 | nlm_canonicalize_reloc (abfd, sec, relptr, symbols) | |
1238 | bfd *abfd; | |
1239 | asection *sec; | |
1240 | arelent **relptr; | |
1241 | asymbol **symbols; | |
1242 | { | |
1243 | arelent *rels; | |
1244 | asection **secs; | |
1245 | bfd_size_type count, i; | |
1246 | unsigned int ret; | |
1247 | ||
1248 | /* Get the relocation fixups. */ | |
1249 | rels = nlm_relocation_fixups (abfd); | |
1250 | if (rels == NULL) | |
1251 | { | |
8b977377 | 1252 | if (nlm_slurp_reloc_fixups (abfd) == false) |
b6e7553c FF |
1253 | return 0; |
1254 | rels = nlm_relocation_fixups (abfd); | |
1255 | if (rels == NULL) | |
1256 | return 0; | |
1257 | } | |
1258 | secs = nlm_relocation_fixup_secs (abfd); | |
1259 | ||
1260 | ret = 0; | |
1261 | count = nlm_fixed_header (abfd)->numberOfRelocationFixups; | |
1262 | for (i = 0; i < count; i++, rels++, secs++) | |
1263 | { | |
1264 | if (*secs == sec) | |
1265 | { | |
1266 | *relptr++ = rels; | |
1267 | ++ret; | |
1268 | } | |
1269 | } | |
1270 | ||
1271 | /* Get the import symbols. */ | |
1272 | count = bfd_get_symcount (abfd); | |
1273 | for (i = 0; i < count; i++, symbols++) | |
1274 | { | |
1275 | asymbol *sym; | |
1276 | ||
1277 | sym = *symbols; | |
1278 | if (bfd_asymbol_flavour (sym) == bfd_target_nlm_flavour) | |
1279 | { | |
1280 | nlm_symbol_type *nlm_sym; | |
1281 | bfd_size_type j; | |
1282 | ||
1283 | nlm_sym = (nlm_symbol_type *) sym; | |
1284 | for (j = 0; j < nlm_sym->rcnt; j++) | |
1285 | { | |
1286 | if (nlm_sym->relocs[j].section == sec) | |
1287 | { | |
1288 | *relptr = &nlm_sym->relocs[j].reloc; | |
1289 | (*relptr)->sym_ptr_ptr = symbols; | |
1290 | ++relptr; | |
1291 | ++ret; | |
1292 | } | |
1293 | } | |
1294 | } | |
1295 | } | |
1296 | ||
1297 | *relptr = NULL; | |
1298 | ||
1299 | return ret; | |
1300 | } | |
1301 | \f | |
1302 | /* Compute the section file positions for an NLM file. All variable | |
1303 | length data in the file headers must be set before this function is | |
1304 | called. If the variable length data is changed later, the | |
1305 | resulting object file will be incorrect. Unfortunately, there is | |
1306 | no way to check this. | |
1307 | ||
1308 | This routine also sets the Size and Offset fields in the fixed | |
7389debf ILT |
1309 | header. |
1310 | ||
1311 | It also looks over the symbols and moves any common symbols into | |
1312 | the .bss section; NLM has no way to represent a common symbol. | |
1313 | This approach means that either the symbols must already have been | |
1314 | set at this point, or there must be no common symbols. We need to | |
1315 | move the symbols at this point so that mangle_relocs can see the | |
1316 | final values. */ | |
b6e7553c FF |
1317 | |
1318 | static boolean | |
1319 | nlm_compute_section_file_positions (abfd) | |
1320 | bfd *abfd; | |
1321 | { | |
1322 | file_ptr sofar; | |
1323 | asection *sec; | |
1324 | bfd_vma text, data, bss; | |
1325 | bfd_vma text_low, data_low; | |
1326 | int text_align, data_align, other_align; | |
1327 | file_ptr text_ptr, data_ptr, other_ptr; | |
45a78ebb | 1328 | asection *bss_sec; |
7389debf | 1329 | asymbol **sym_ptr_ptr; |
b6e7553c FF |
1330 | |
1331 | if (abfd->output_has_begun == true) | |
1332 | return true; | |
1333 | ||
45a78ebb ILT |
1334 | /* Make sure we have a section to hold uninitialized data. */ |
1335 | bss_sec = bfd_get_section_by_name (abfd, NLM_UNINITIALIZED_DATA_NAME); | |
1336 | if (bss_sec == NULL) | |
1337 | { | |
1338 | if (! add_bfd_section (abfd, NLM_UNINITIALIZED_DATA_NAME, | |
1339 | (file_ptr) 0, (bfd_size_type) 0, | |
1340 | SEC_ALLOC)) | |
1341 | return false; | |
1342 | bss_sec = bfd_get_section_by_name (abfd, NLM_UNINITIALIZED_DATA_NAME); | |
1343 | } | |
1344 | ||
b6e7553c FF |
1345 | abfd->output_has_begun = true; |
1346 | ||
1347 | /* The fixed header. */ | |
cdbfad1c | 1348 | sofar = nlm_optional_prefix_size (abfd) + nlm_fixed_header_size (abfd); |
b6e7553c FF |
1349 | |
1350 | /* The variable header. */ | |
1351 | sofar += (sizeof (nlm_variable_header (abfd)->descriptionLength) | |
1352 | + nlm_variable_header (abfd) -> descriptionLength + 1 | |
1353 | + NLM_TARGET_LONG_SIZE /* stackSize */ | |
1354 | + NLM_TARGET_LONG_SIZE /* reserved */ | |
1355 | + sizeof (nlm_variable_header (abfd) -> oldThreadName) | |
1356 | + sizeof (nlm_variable_header (abfd) -> screenNameLength) | |
1357 | + nlm_variable_header (abfd) -> screenNameLength + 1 | |
1358 | + sizeof (nlm_variable_header (abfd) -> threadNameLength) | |
1359 | + nlm_variable_header (abfd) -> threadNameLength + 1); | |
1360 | ||
1361 | /* The auxiliary headers. */ | |
1362 | if (find_nonzero ((PTR) nlm_version_header (abfd), | |
1363 | sizeof (Nlm_Internal_Version_Header))) | |
1364 | sofar += sizeof (Nlm_External_Version_Header); | |
1365 | if (find_nonzero ((PTR) nlm_extended_header (abfd), | |
1366 | sizeof (Nlm_Internal_Extended_Header))) | |
1367 | sofar += sizeof (Nlm_External_Extended_Header); | |
1368 | if (find_nonzero ((PTR) nlm_custom_header (abfd), | |
1369 | sizeof (Nlm_Internal_Custom_Header))) | |
1370 | sofar += sizeof (Nlm_External_Custom_Header); | |
1371 | if (find_nonzero ((PTR) nlm_copyright_header (abfd), | |
1372 | sizeof (Nlm_Internal_Copyright_Header))) | |
1373 | sofar += (sizeof (Nlm_External_Copyright_Header) | |
1374 | + nlm_copyright_header (abfd) -> copyrightMessageLength + 1); | |
1375 | ||
1376 | /* Compute the section file positions in two passes. First get the | |
1377 | sizes of the text and data sections, and then set the file | |
1378 | positions. This code aligns the sections in the file using the | |
1379 | same alignment restrictions that apply to the sections in memory; | |
1380 | this may not be necessary. */ | |
1381 | text = 0; | |
1382 | text_low = (bfd_vma) -1; | |
1383 | text_align = 0; | |
1384 | data = 0; | |
1385 | data_low = (bfd_vma) -1; | |
1386 | data_align = 0; | |
1387 | bss = 0; | |
1388 | other_align = 0; | |
1389 | for (sec = abfd->sections; sec != (asection *) NULL; sec = sec->next) | |
1390 | { | |
1391 | flagword f; | |
1392 | ||
1393 | sec->_raw_size = BFD_ALIGN (sec->_raw_size, 1 << sec->alignment_power); | |
1394 | ||
1395 | f = bfd_get_section_flags (abfd, sec); | |
1396 | if (f & SEC_CODE) | |
1397 | { | |
1398 | text += sec->_raw_size; | |
1399 | if (bfd_get_section_vma (abfd, sec) < text_low) | |
1400 | text_low = bfd_get_section_vma (abfd, sec); | |
1401 | if (sec->alignment_power > text_align) | |
1402 | text_align = sec->alignment_power; | |
1403 | } | |
1404 | else if (f & SEC_DATA) | |
1405 | { | |
1406 | data += sec->_raw_size; | |
1407 | if (bfd_get_section_vma (abfd, sec) < data_low) | |
1408 | data_low = bfd_get_section_vma (abfd, sec); | |
1409 | if (sec->alignment_power > data_align) | |
1410 | data_align = sec->alignment_power; | |
1411 | } | |
1412 | else if (f & SEC_HAS_CONTENTS) | |
1413 | { | |
1414 | if (sec->alignment_power > other_align) | |
1415 | other_align = sec->alignment_power; | |
1416 | } | |
1417 | else if (f & SEC_ALLOC) | |
1418 | bss += sec->_raw_size; | |
1419 | } | |
1420 | ||
1421 | nlm_set_text_low (abfd, text_low); | |
1422 | nlm_set_data_low (abfd, data_low); | |
1423 | ||
9783e04a DM |
1424 | if (nlm_no_uninitialized_data (abfd)) |
1425 | { | |
1426 | /* This NetWare format does not use uninitialized data. We must | |
1427 | increase the size of the data section. We will never wind up | |
1428 | writing those file locations, so they will remain zero. */ | |
1429 | data += bss; | |
1430 | bss = 0; | |
1431 | } | |
1432 | ||
b6e7553c FF |
1433 | text_ptr = BFD_ALIGN (sofar, 1 << text_align); |
1434 | data_ptr = BFD_ALIGN (text_ptr + text, 1 << data_align); | |
1435 | other_ptr = BFD_ALIGN (data_ptr + data, 1 << other_align); | |
1436 | ||
1437 | /* Fill in some fields in the header for which we now have the | |
1438 | information. */ | |
1439 | nlm_fixed_header (abfd)->codeImageOffset = text_ptr; | |
1440 | nlm_fixed_header (abfd)->codeImageSize = text; | |
1441 | nlm_fixed_header (abfd)->dataImageOffset = data_ptr; | |
1442 | nlm_fixed_header (abfd)->dataImageSize = data; | |
1443 | nlm_fixed_header (abfd)->uninitializedDataSize = bss; | |
1444 | ||
1445 | for (sec = abfd->sections; sec != (asection *) NULL; sec = sec->next) | |
1446 | { | |
1447 | flagword f; | |
1448 | ||
1449 | f = bfd_get_section_flags (abfd, sec); | |
1450 | ||
1451 | if (f & SEC_CODE) | |
1452 | { | |
1453 | sec->filepos = text_ptr; | |
1454 | text_ptr += sec->_raw_size; | |
1455 | } | |
1456 | else if (f & SEC_DATA) | |
1457 | { | |
1458 | sec->filepos = data_ptr; | |
1459 | data_ptr += sec->_raw_size; | |
1460 | } | |
1461 | else if (f & SEC_HAS_CONTENTS) | |
1462 | { | |
1463 | sec->filepos = other_ptr; | |
1464 | other_ptr += sec->_raw_size; | |
1465 | } | |
1466 | } | |
1467 | ||
1468 | nlm_fixed_header (abfd)->relocationFixupOffset = other_ptr; | |
1469 | ||
7389debf ILT |
1470 | /* Move all common symbols into the .bss section. */ |
1471 | ||
1472 | sym_ptr_ptr = bfd_get_outsymbols (abfd); | |
1473 | if (sym_ptr_ptr != NULL) | |
1474 | { | |
1475 | asymbol **sym_end; | |
7389debf ILT |
1476 | bfd_vma add; |
1477 | ||
7389debf ILT |
1478 | sym_end = sym_ptr_ptr + bfd_get_symcount (abfd); |
1479 | add = 0; | |
1480 | for (; sym_ptr_ptr < sym_end; sym_ptr_ptr++) | |
1481 | { | |
1482 | asymbol *sym; | |
1483 | bfd_vma size; | |
1484 | ||
1485 | sym = *sym_ptr_ptr; | |
1486 | ||
1487 | if (! bfd_is_com_section (bfd_get_section (sym))) | |
1488 | continue; | |
1489 | ||
1490 | /* Put the common symbol in the .bss section, and increase | |
1491 | the size of the .bss section by the size of the common | |
1492 | symbol (which is the old value of the symbol). */ | |
1493 | sym->section = bss_sec; | |
1494 | size = sym->value; | |
1495 | sym->value = bss_sec->_raw_size + add; | |
1496 | add += size; | |
1497 | add = BFD_ALIGN (add, 1 << bss_sec->alignment_power); | |
1498 | } | |
9783e04a DM |
1499 | if (add != 0) |
1500 | { | |
1501 | if (nlm_no_uninitialized_data (abfd)) | |
1502 | { | |
1503 | /* We could handle this case, but so far it hasn't been | |
1504 | necessary. */ | |
1505 | abort (); | |
1506 | } | |
1507 | nlm_fixed_header (abfd)->uninitializedDataSize += add; | |
1508 | bss_sec->_raw_size += add; | |
1509 | } | |
7389debf ILT |
1510 | } |
1511 | ||
b6e7553c FF |
1512 | return true; |
1513 | } | |
1514 | ||
1515 | /* Set the contents of a section. To do this we need to know where | |
1516 | the section is going to be located in the output file. That means | |
1517 | that the sizes of all the sections must be set, and all the | |
1518 | variable size header information must be known. */ | |
1519 | ||
1520 | boolean | |
1521 | nlm_set_section_contents (abfd, section, location, offset, count) | |
1522 | bfd *abfd; | |
1523 | asection *section; | |
1524 | PTR location; | |
1525 | file_ptr offset; | |
1526 | bfd_size_type count; | |
1527 | { | |
1528 | if (abfd->output_has_begun == false | |
1529 | && nlm_compute_section_file_positions (abfd) == false) | |
1530 | return false; | |
1531 | ||
1532 | if (count == 0) | |
1533 | return true; | |
1534 | ||
7389debf ILT |
1535 | /* i386 NetWare has a very restricted set of relocs. In order for |
1536 | objcopy to work, the NLM i386 backend needs a chance to rework | |
1537 | the section contents so that its set of relocs will work. If all | |
1538 | the relocs are already acceptable, this will not do anything. */ | |
1539 | if (section->reloc_count != 0) | |
1540 | { | |
45a78ebb ILT |
1541 | boolean (*mangle_relocs_func) PARAMS ((bfd *, asection *, PTR, |
1542 | bfd_vma, bfd_size_type)); | |
7389debf ILT |
1543 | |
1544 | mangle_relocs_func = nlm_mangle_relocs_func (abfd); | |
1545 | if (mangle_relocs_func != NULL) | |
1546 | { | |
1547 | if (! (*mangle_relocs_func) (abfd, section, location, | |
1548 | (bfd_vma) offset, count)) | |
1549 | return false; | |
1550 | } | |
1551 | } | |
1552 | ||
b6e7553c FF |
1553 | if (bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET) != 0 |
1554 | || bfd_write (location, 1, count, abfd) != count) | |
1555 | { | |
80425e6c | 1556 | bfd_set_error (bfd_error_system_call); |
b6e7553c FF |
1557 | return false; |
1558 | } | |
1559 | ||
1560 | return true; | |
1561 | } | |
1562 | ||
1563 | /* We need to sort a list of relocs associated with sections when we | |
1564 | write out the external relocs. */ | |
1565 | ||
b6e7553c FF |
1566 | static int |
1567 | nlm_external_reloc_compare (p1, p2) | |
1568 | const void *p1; | |
1569 | const void *p2; | |
1570 | { | |
1571 | const struct reloc_and_sec *r1 = (const struct reloc_and_sec *) p1; | |
1572 | const struct reloc_and_sec *r2 = (const struct reloc_and_sec *) p2; | |
9783e04a | 1573 | int cmp; |
b6e7553c | 1574 | |
9783e04a DM |
1575 | cmp = strcmp ((*r1->rel->sym_ptr_ptr)->name, |
1576 | (*r2->rel->sym_ptr_ptr)->name); | |
1577 | if (cmp != 0) | |
1578 | return cmp; | |
1579 | ||
1580 | /* We sort by address within symbol to make the sort more stable and | |
1581 | increase the chances that different hosts will generate bit for | |
1582 | bit equivalent results. */ | |
1583 | return (int) (r1->rel->address - r2->rel->address); | |
b6e7553c FF |
1584 | } |
1585 | ||
1586 | /* Write out an NLM file. We write out the information in this order: | |
1587 | fixed header | |
1588 | variable header | |
1589 | auxiliary headers | |
1590 | code sections | |
1591 | data sections | |
1592 | other sections (custom data, messages, help, shared NLM, RPC, | |
1593 | module dependencies) | |
1594 | relocation fixups | |
1595 | external references (imports) | |
1596 | public symbols (exports) | |
1597 | debugging records | |
1598 | This is similar to the order used by the NetWare tools; the | |
1599 | difference is that NetWare puts the sections other than code, data | |
1600 | and custom data at the end of the NLM. It is convenient for us to | |
1601 | know where the sections are going to be before worrying about the | |
1602 | size of the other information. | |
1603 | ||
1604 | By the time this function is called, all the section data should | |
1605 | have been output using set_section_contents. Note that custom | |
1606 | data, the message file, the help file, the shared NLM file, the RPC | |
1607 | data, and the module dependencies are all considered to be | |
1608 | sections; the caller is responsible for filling in the offset and | |
1609 | length fields in the NLM headers. The relocation fixups and | |
1610 | imports are both obtained from the list of relocs attached to each | |
1611 | section. The exports and debugging records are obtained from the | |
1612 | list of outsymbols. */ | |
1613 | ||
1614 | boolean | |
1615 | nlm_write_object_contents (abfd) | |
1616 | bfd *abfd; | |
1617 | { | |
b6e7553c | 1618 | asection *sec; |
cdbfad1c | 1619 | boolean (*write_import_func) PARAMS ((bfd *, asection *, arelent *)); |
b6e7553c FF |
1620 | bfd_size_type external_reloc_count, internal_reloc_count, i, c; |
1621 | struct reloc_and_sec *external_relocs; | |
1622 | asymbol **sym_ptr_ptr; | |
45a78ebb | 1623 | file_ptr last; |
cdbfad1c | 1624 | boolean (*write_prefix_func) PARAMS ((bfd *)); |
80425e6c JK |
1625 | unsigned char *fixed_header = NULL; |
1626 | ||
1627 | fixed_header = (unsigned char *) malloc (nlm_fixed_header_size (abfd)); | |
1628 | if (fixed_header == NULL) | |
1629 | { | |
1630 | bfd_set_error (bfd_error_no_memory); | |
1631 | goto error_return; | |
1632 | } | |
b6e7553c FF |
1633 | |
1634 | if (abfd->output_has_begun == false | |
1635 | && nlm_compute_section_file_positions (abfd) == false) | |
80425e6c | 1636 | goto error_return; |
b6e7553c FF |
1637 | |
1638 | /* Write out the variable length headers. */ | |
cdbfad1c ILT |
1639 | if (bfd_seek (abfd, |
1640 | nlm_optional_prefix_size (abfd) + nlm_fixed_header_size (abfd), | |
1641 | SEEK_SET) != 0) | |
b6e7553c | 1642 | { |
80425e6c JK |
1643 | bfd_set_error (bfd_error_system_call); |
1644 | goto error_return; | |
b6e7553c FF |
1645 | } |
1646 | if (nlm_swap_variable_header_out (abfd) == false | |
1647 | || nlm_swap_auxiliary_headers_out (abfd) == false) | |
1648 | { | |
80425e6c JK |
1649 | bfd_set_error (bfd_error_system_call); |
1650 | goto error_return; | |
b6e7553c FF |
1651 | } |
1652 | ||
1653 | /* A weak check on whether the section file positions were | |
1654 | reasonable. */ | |
1655 | if (bfd_tell (abfd) > nlm_fixed_header (abfd)->codeImageOffset) | |
1656 | { | |
80425e6c JK |
1657 | bfd_set_error (bfd_error_invalid_operation); |
1658 | goto error_return; | |
b6e7553c FF |
1659 | } |
1660 | ||
1661 | /* Advance to the relocs. */ | |
1662 | if (bfd_seek (abfd, nlm_fixed_header (abfd)->relocationFixupOffset, | |
1663 | SEEK_SET) != 0) | |
1664 | { | |
80425e6c JK |
1665 | bfd_set_error (bfd_error_system_call); |
1666 | goto error_return; | |
b6e7553c FF |
1667 | } |
1668 | ||
1669 | /* The format of the relocation entries is dependent upon the | |
1670 | particular target. We use an external routine to write the reloc | |
1671 | out. */ | |
cdbfad1c | 1672 | write_import_func = nlm_write_import_func (abfd); |
b6e7553c FF |
1673 | |
1674 | /* Write out the internal relocation fixups. While we're looping | |
1675 | over the relocs, we also count the external relocs, which is | |
1676 | needed when they are written out below. */ | |
1677 | internal_reloc_count = 0; | |
1678 | external_reloc_count = 0; | |
1679 | for (sec = abfd->sections; sec != (asection *) NULL; sec = sec->next) | |
1680 | { | |
1681 | arelent **rel_ptr_ptr, **rel_end; | |
1682 | ||
1683 | if (sec->reloc_count == 0) | |
1684 | continue; | |
1685 | ||
1686 | /* We can only represent relocs within a code or data | |
cdbfad1c | 1687 | section. We ignore them for a debugging section. */ |
b6e7553c | 1688 | if ((bfd_get_section_flags (abfd, sec) & (SEC_CODE | SEC_DATA)) == 0) |
cdbfad1c | 1689 | continue; |
b6e7553c | 1690 | |
cdbfad1c ILT |
1691 | /* We need to know how to write out imports */ |
1692 | if (write_import_func == NULL) | |
b6e7553c | 1693 | { |
80425e6c JK |
1694 | bfd_set_error (bfd_error_invalid_operation); |
1695 | goto error_return; | |
b6e7553c FF |
1696 | } |
1697 | ||
1698 | rel_ptr_ptr = sec->orelocation; | |
1699 | rel_end = rel_ptr_ptr + sec->reloc_count; | |
1700 | for (; rel_ptr_ptr < rel_end; rel_ptr_ptr++) | |
1701 | { | |
1702 | arelent *rel; | |
1703 | asymbol *sym; | |
1704 | ||
1705 | rel = *rel_ptr_ptr; | |
1706 | sym = *rel->sym_ptr_ptr; | |
1707 | ||
7389debf | 1708 | if (bfd_get_section (sym) != &bfd_und_section) |
b6e7553c FF |
1709 | { |
1710 | ++internal_reloc_count; | |
cdbfad1c | 1711 | if ((*write_import_func) (abfd, sec, rel) == false) |
80425e6c | 1712 | goto error_return; |
b6e7553c FF |
1713 | } |
1714 | else | |
1715 | ++external_reloc_count; | |
1716 | } | |
1717 | } | |
1718 | nlm_fixed_header (abfd)->numberOfRelocationFixups = internal_reloc_count; | |
1719 | ||
1720 | /* Write out the imports (relocs against external symbols). These | |
1721 | are output as a symbol name followed by all the relocs for that | |
1722 | symbol, so we must first gather together all the relocs against | |
1723 | external symbols and sort them. */ | |
1724 | external_relocs = | |
1725 | (struct reloc_and_sec *) bfd_alloc (abfd, | |
1726 | (external_reloc_count | |
1727 | * sizeof (struct reloc_and_sec))); | |
1728 | if (external_relocs == (struct reloc_and_sec *) NULL) | |
1729 | { | |
80425e6c JK |
1730 | bfd_set_error (bfd_error_no_memory); |
1731 | goto error_return; | |
b6e7553c FF |
1732 | } |
1733 | i = 0; | |
1734 | for (sec = abfd->sections; sec != (asection *) NULL; sec = sec->next) | |
1735 | { | |
1736 | arelent **rel_ptr_ptr, **rel_end; | |
1737 | ||
1738 | if (sec->reloc_count == 0) | |
1739 | continue; | |
1740 | ||
1741 | rel_ptr_ptr = sec->orelocation; | |
1742 | rel_end = rel_ptr_ptr + sec->reloc_count; | |
1743 | for (; rel_ptr_ptr < rel_end; rel_ptr_ptr++) | |
1744 | { | |
1745 | arelent *rel; | |
1746 | asymbol *sym; | |
1747 | ||
1748 | rel = *rel_ptr_ptr; | |
1749 | sym = *rel->sym_ptr_ptr; | |
1750 | ||
7389debf | 1751 | if (bfd_get_section (sym) != &bfd_und_section) |
b6e7553c FF |
1752 | continue; |
1753 | ||
1754 | external_relocs[i].rel = rel; | |
1755 | external_relocs[i].sec = sec; | |
1756 | ++i; | |
1757 | } | |
1758 | } | |
1759 | ||
1760 | BFD_ASSERT (i == external_reloc_count); | |
1761 | ||
1762 | /* Sort the external relocs by name. */ | |
9783e04a | 1763 | qsort ((PTR) external_relocs, (size_t) external_reloc_count, |
b6e7553c FF |
1764 | sizeof (struct reloc_and_sec), nlm_external_reloc_compare); |
1765 | ||
1766 | /* Write out the external relocs. */ | |
1767 | nlm_fixed_header (abfd)->externalReferencesOffset = bfd_tell (abfd); | |
1768 | c = 0; | |
1769 | i = 0; | |
1770 | while (i < external_reloc_count) | |
1771 | { | |
1772 | arelent *rel; | |
1773 | asymbol *sym; | |
7389debf | 1774 | bfd_size_type j, cnt; |
b6e7553c FF |
1775 | |
1776 | ++c; | |
1777 | ||
1778 | rel = external_relocs[i].rel; | |
1779 | sym = *rel->sym_ptr_ptr; | |
1780 | ||
b6e7553c | 1781 | cnt = 0; |
7389debf ILT |
1782 | for (j = i; |
1783 | (j < external_reloc_count | |
1784 | && *external_relocs[j].rel->sym_ptr_ptr == sym); | |
1785 | j++) | |
b6e7553c FF |
1786 | ++cnt; |
1787 | ||
cdbfad1c ILT |
1788 | if ((*nlm_write_external_func (abfd)) (abfd, cnt, sym, |
1789 | &external_relocs[i]) | |
1790 | == false) | |
80425e6c | 1791 | goto error_return; |
b6e7553c | 1792 | |
cdbfad1c | 1793 | i += cnt; |
b6e7553c | 1794 | } |
cdbfad1c | 1795 | |
b6e7553c FF |
1796 | nlm_fixed_header (abfd)->numberOfExternalReferences = c; |
1797 | ||
1798 | /* Write out the public symbols (exports). */ | |
1799 | sym_ptr_ptr = bfd_get_outsymbols (abfd); | |
1800 | if (sym_ptr_ptr != (asymbol **) NULL) | |
1801 | { | |
cdbfad1c | 1802 | bfd_vma (*get_public_offset_func) PARAMS ((bfd *, asymbol *)); |
9783e04a DM |
1803 | boolean (*write_export_func) PARAMS ((bfd*, asymbol *, bfd_vma)); |
1804 | ||
b6e7553c FF |
1805 | asymbol **sym_end; |
1806 | ||
1807 | nlm_fixed_header (abfd)->publicsOffset = bfd_tell (abfd); | |
cdbfad1c | 1808 | get_public_offset_func = nlm_get_public_offset_func (abfd); |
9783e04a | 1809 | write_export_func = nlm_write_export_func (abfd); |
b6e7553c FF |
1810 | c = 0; |
1811 | sym_end = sym_ptr_ptr + bfd_get_symcount (abfd); | |
1812 | for (; sym_ptr_ptr < sym_end; sym_ptr_ptr++) | |
1813 | { | |
1814 | asymbol *sym; | |
1815 | bfd_byte len; | |
1816 | bfd_vma offset; | |
b6e7553c FF |
1817 | bfd_byte temp[NLM_TARGET_LONG_SIZE]; |
1818 | ||
1819 | sym = *sym_ptr_ptr; | |
1820 | ||
7389debf ILT |
1821 | if ((sym->flags & (BSF_EXPORT | BSF_GLOBAL)) == 0 |
1822 | || bfd_get_section (sym) == &bfd_und_section) | |
b6e7553c FF |
1823 | continue; |
1824 | ||
1825 | ++c; | |
c3e964b9 | 1826 | |
cdbfad1c | 1827 | if (get_public_offset_func) |
b6e7553c | 1828 | { |
cdbfad1c ILT |
1829 | /* Most backends can use the code below, but |
1830 | unfortunately some use a different scheme. */ | |
1831 | offset = (*get_public_offset_func) (abfd, sym); | |
b6e7553c FF |
1832 | } |
1833 | else | |
1834 | { | |
cdbfad1c ILT |
1835 | offset = bfd_asymbol_value (sym); |
1836 | sec = sym->section; | |
1837 | if (sec->flags & SEC_CODE) | |
1838 | { | |
1839 | offset -= nlm_get_text_low (abfd); | |
1840 | offset |= NLM_HIBIT; | |
1841 | } | |
1842 | else if (sec->flags & (SEC_DATA | SEC_ALLOC)) | |
1843 | { | |
1844 | /* SEC_ALLOC is for the .bss section. */ | |
1845 | offset -= nlm_get_data_low (abfd); | |
1846 | } | |
1847 | else | |
1848 | { | |
1849 | /* We can't handle an exported symbol that is not in | |
1850 | the code or data segment. */ | |
80425e6c JK |
1851 | bfd_set_error (bfd_error_invalid_operation); |
1852 | goto error_return; | |
cdbfad1c | 1853 | } |
b6e7553c FF |
1854 | } |
1855 | ||
9783e04a | 1856 | if (write_export_func) |
b6e7553c | 1857 | { |
9783e04a | 1858 | if ((*write_export_func) (abfd, sym, offset) == false) |
80425e6c | 1859 | goto error_return; |
b6e7553c | 1860 | } |
9783e04a DM |
1861 | else |
1862 | { | |
1863 | len = strlen (sym->name); | |
1864 | if ((bfd_write (&len, sizeof (bfd_byte), 1, abfd) | |
1865 | != sizeof (bfd_byte)) | |
1866 | || bfd_write (sym->name, len, 1, abfd) != len) | |
1867 | { | |
80425e6c JK |
1868 | bfd_set_error (bfd_error_system_call); |
1869 | goto error_return; | |
9783e04a DM |
1870 | } |
1871 | ||
1872 | put_word (abfd, offset, temp); | |
1873 | if (bfd_write (temp, sizeof (temp), 1, abfd) != sizeof (temp)) | |
1874 | { | |
80425e6c JK |
1875 | bfd_set_error (bfd_error_system_call); |
1876 | goto error_return; | |
9783e04a DM |
1877 | } |
1878 | } | |
1879 | } | |
b6e7553c FF |
1880 | nlm_fixed_header (abfd)->numberOfPublics = c; |
1881 | ||
45a78ebb ILT |
1882 | /* Write out the debugging records. The NLM conversion program |
1883 | wants to be able to inhibit this, so as a special hack if | |
1884 | debugInfoOffset is set to -1 we don't write any debugging | |
1885 | information. This can not be handled by fiddling with the | |
1886 | symbol table, because exported symbols appear in both the | |
1887 | exported symbol list and the debugging information. */ | |
1888 | if (nlm_fixed_header (abfd)->debugInfoOffset == (file_ptr) -1) | |
b6e7553c | 1889 | { |
45a78ebb ILT |
1890 | nlm_fixed_header (abfd)->debugInfoOffset = 0; |
1891 | nlm_fixed_header (abfd)->numberOfDebugRecords = 0; | |
1892 | } | |
1893 | else | |
1894 | { | |
1895 | nlm_fixed_header (abfd)->debugInfoOffset = bfd_tell (abfd); | |
1896 | c = 0; | |
1897 | sym_ptr_ptr = bfd_get_outsymbols (abfd); | |
1898 | sym_end = sym_ptr_ptr + bfd_get_symcount (abfd); | |
1899 | for (; sym_ptr_ptr < sym_end; sym_ptr_ptr++) | |
b6e7553c | 1900 | { |
45a78ebb ILT |
1901 | asymbol *sym; |
1902 | bfd_byte type, len; | |
1903 | bfd_vma offset; | |
1904 | bfd_byte temp[NLM_TARGET_LONG_SIZE]; | |
1905 | ||
1906 | sym = *sym_ptr_ptr; | |
1907 | ||
1908 | /* The NLM notion of a debugging symbol is actually what | |
1909 | BFD calls a local or global symbol. What BFD calls a | |
1910 | debugging symbol NLM does not understand at all. */ | |
1911 | if ((sym->flags & (BSF_LOCAL | BSF_GLOBAL | BSF_EXPORT)) == 0 | |
1912 | || (sym->flags & BSF_DEBUGGING) != 0 | |
1913 | || bfd_get_section (sym) == &bfd_und_section) | |
1914 | continue; | |
1915 | ||
1916 | ++c; | |
1917 | ||
9783e04a | 1918 | offset = bfd_asymbol_value (sym); |
45a78ebb ILT |
1919 | sec = sym->section; |
1920 | if (sec->flags & SEC_CODE) | |
1921 | { | |
9783e04a DM |
1922 | offset -= nlm_get_text_low (abfd); |
1923 | type = 1; | |
1924 | } | |
1925 | else if (sec->flags & (SEC_DATA | SEC_ALLOC)) | |
1926 | { | |
1927 | /* SEC_ALLOC is for the .bss section. */ | |
1928 | offset -= nlm_get_data_low (abfd); | |
45a78ebb ILT |
1929 | type = 0; |
1930 | } | |
1931 | else | |
1932 | type = 2; | |
b6e7553c | 1933 | |
45a78ebb ILT |
1934 | /* The type is 0 for data, 1 for code, 2 for absolute. */ |
1935 | if (bfd_write (&type, sizeof (bfd_byte), 1, abfd) | |
1936 | != sizeof (bfd_byte)) | |
1937 | { | |
80425e6c JK |
1938 | bfd_set_error (bfd_error_system_call); |
1939 | goto error_return; | |
45a78ebb | 1940 | } |
b6e7553c | 1941 | |
45a78ebb ILT |
1942 | put_word (abfd, offset, temp); |
1943 | if (bfd_write (temp, sizeof (temp), 1, abfd) != sizeof (temp)) | |
1944 | { | |
80425e6c JK |
1945 | bfd_set_error (bfd_error_system_call); |
1946 | goto error_return; | |
45a78ebb | 1947 | } |
b6e7553c | 1948 | |
45a78ebb ILT |
1949 | len = strlen (sym->name); |
1950 | if ((bfd_write (&len, sizeof (bfd_byte), 1, abfd) | |
1951 | != sizeof (bfd_byte)) | |
1952 | || bfd_write (sym->name, len, 1, abfd) != len) | |
b6e7553c | 1953 | { |
80425e6c JK |
1954 | bfd_set_error (bfd_error_system_call); |
1955 | goto error_return; | |
b6e7553c | 1956 | } |
45a78ebb ILT |
1957 | } |
1958 | nlm_fixed_header (abfd)->numberOfDebugRecords = c; | |
1959 | } | |
b6e7553c FF |
1960 | } |
1961 | ||
45a78ebb ILT |
1962 | /* NLMLINK fills in offset values even if there is no data, so we do |
1963 | the same. */ | |
1964 | last = bfd_tell (abfd); | |
1965 | if (nlm_fixed_header (abfd)->codeImageOffset == 0) | |
1966 | nlm_fixed_header (abfd)->codeImageOffset = last; | |
1967 | if (nlm_fixed_header (abfd)->dataImageOffset == 0) | |
1968 | nlm_fixed_header (abfd)->dataImageOffset = last; | |
1969 | if (nlm_fixed_header (abfd)->customDataOffset == 0) | |
1970 | nlm_fixed_header (abfd)->customDataOffset = last; | |
1971 | if (nlm_fixed_header (abfd)->moduleDependencyOffset == 0) | |
1972 | nlm_fixed_header (abfd)->moduleDependencyOffset = last; | |
1973 | if (nlm_fixed_header (abfd)->relocationFixupOffset == 0) | |
1974 | nlm_fixed_header (abfd)->relocationFixupOffset = last; | |
1975 | if (nlm_fixed_header (abfd)->externalReferencesOffset == 0) | |
1976 | nlm_fixed_header (abfd)->externalReferencesOffset = last; | |
1977 | if (nlm_fixed_header (abfd)->publicsOffset == 0) | |
1978 | nlm_fixed_header (abfd)->publicsOffset = last; | |
1979 | if (nlm_fixed_header (abfd)->debugInfoOffset == 0) | |
1980 | nlm_fixed_header (abfd)->debugInfoOffset = last; | |
1981 | ||
b6e7553c FF |
1982 | /* At this point everything has been written out except the fixed |
1983 | header. */ | |
cdbfad1c | 1984 | memcpy (nlm_fixed_header (abfd)->signature, nlm_signature (abfd), |
b6e7553c FF |
1985 | NLM_SIGNATURE_SIZE); |
1986 | nlm_fixed_header (abfd)->version = NLM_HEADER_VERSION; | |
1987 | nlm_fixed_header (abfd)->codeStartOffset = | |
45a78ebb ILT |
1988 | (bfd_get_start_address (abfd) |
1989 | - nlm_get_text_low (abfd)); | |
b6e7553c FF |
1990 | |
1991 | /* We have no convenient way for the caller to pass in the exit | |
1992 | procedure or the check unload procedure, so the caller must set | |
1993 | the values in the header to the values of the symbols. */ | |
45a78ebb | 1994 | nlm_fixed_header (abfd)->exitProcedureOffset -= nlm_get_text_low (abfd); |
b6e7553c FF |
1995 | if (nlm_fixed_header (abfd)->checkUnloadProcedureOffset != 0) |
1996 | nlm_fixed_header (abfd)->checkUnloadProcedureOffset -= | |
1997 | nlm_get_text_low (abfd); | |
1998 | ||
cdbfad1c | 1999 | if (bfd_seek (abfd, 0, SEEK_SET) != 0) |
80425e6c | 2000 | goto error_return; |
cdbfad1c ILT |
2001 | |
2002 | write_prefix_func = nlm_write_prefix_func (abfd); | |
2003 | if (write_prefix_func) | |
2004 | { | |
2005 | if ((*write_prefix_func) (abfd) == false) | |
80425e6c | 2006 | goto error_return; |
cdbfad1c ILT |
2007 | } |
2008 | ||
2009 | BFD_ASSERT (bfd_tell (abfd) == nlm_optional_prefix_size (abfd)); | |
2010 | ||
2011 | nlm_swap_fixed_header_out (abfd, nlm_fixed_header (abfd), fixed_header); | |
2012 | if (bfd_write (fixed_header, nlm_fixed_header_size (abfd), 1, abfd) | |
2013 | != nlm_fixed_header_size (abfd)) | |
b6e7553c | 2014 | { |
80425e6c JK |
2015 | bfd_set_error (bfd_error_system_call); |
2016 | goto error_return; | |
b6e7553c FF |
2017 | } |
2018 | ||
80425e6c JK |
2019 | if (fixed_header != NULL) |
2020 | free (fixed_header); | |
b6e7553c | 2021 | return true; |
80425e6c JK |
2022 | |
2023 | error_return: | |
2024 | if (fixed_header != NULL) | |
2025 | free (fixed_header); | |
2026 | return false; | |
b6e7553c | 2027 | } |