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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 * | |
326e32d7 ILT |
94 | nlm_object_p (abfd) |
95 | bfd *abfd; | |
c3e964b9 | 96 | { |
cdbfad1c ILT |
97 | struct nlm_obj_tdata *preserved_tdata = nlm_tdata (abfd); |
98 | boolean (*backend_object_p) PARAMS ((bfd *)); | |
80425e6c | 99 | PTR x_fxdhdr = NULL; |
cdbfad1c ILT |
100 | Nlm_Internal_Fixed_Header *i_fxdhdrp; |
101 | const char *signature; | |
b6e7553c | 102 | enum bfd_architecture arch; |
c3e964b9 | 103 | |
cdbfad1c ILT |
104 | /* Some NLM formats have a prefix before the standard NLM fixed |
105 | header. */ | |
106 | backend_object_p = nlm_backend_object_p_func (abfd); | |
107 | if (backend_object_p) | |
108 | { | |
326e32d7 | 109 | if (!(*backend_object_p) (abfd)) |
cdbfad1c ILT |
110 | goto got_wrong_format_error; |
111 | } | |
112 | ||
c3e964b9 FF |
113 | /* Read in the fixed length portion of the NLM header in external format. */ |
114 | ||
80425e6c JK |
115 | x_fxdhdr = (PTR) malloc (nlm_fixed_header_size (abfd)); |
116 | if (x_fxdhdr == NULL) | |
117 | { | |
118 | bfd_set_error (bfd_error_no_memory); | |
119 | goto got_no_match; | |
120 | } | |
cdbfad1c ILT |
121 | |
122 | if (bfd_read ((PTR) x_fxdhdr, nlm_fixed_header_size (abfd), 1, abfd) != | |
123 | nlm_fixed_header_size (abfd)) | |
4002f18a ILT |
124 | { |
125 | if (bfd_get_error () != bfd_error_system_call) | |
126 | goto got_wrong_format_error; | |
127 | else | |
128 | goto got_no_match; | |
129 | } | |
c3e964b9 | 130 | |
cdbfad1c ILT |
131 | /* Allocate an instance of the nlm_obj_tdata structure and hook it up to |
132 | the tdata pointer in the bfd. */ | |
c3e964b9 | 133 | |
cdbfad1c ILT |
134 | nlm_tdata (abfd) = (struct nlm_obj_tdata *) |
135 | bfd_zalloc (abfd, sizeof (struct nlm_obj_tdata)); | |
136 | if (nlm_tdata (abfd) == NULL) | |
c3e964b9 | 137 | { |
80425e6c | 138 | bfd_set_error (bfd_error_no_memory); |
cdbfad1c | 139 | goto got_no_match; |
c3e964b9 FF |
140 | } |
141 | ||
cdbfad1c ILT |
142 | i_fxdhdrp = nlm_fixed_header (abfd); |
143 | nlm_swap_fixed_header_in (abfd, x_fxdhdr, i_fxdhdrp); | |
144 | ||
145 | /* Check to see if we have an NLM file for this backend by matching | |
146 | the NLM signature. */ | |
147 | ||
148 | signature = nlm_signature (abfd); | |
149 | if (signature != NULL | |
150 | && *signature != '\0' | |
151 | && strncmp ((char *) i_fxdhdrp->signature, signature, | |
152 | NLM_SIGNATURE_SIZE) != 0) | |
153 | goto got_wrong_format_error; | |
154 | ||
c3e964b9 FF |
155 | /* There's no supported way to discover the endianess of an NLM, so test for |
156 | a sane version number after doing byte swapping appropriate for this | |
157 | XVEC. (Hack alert!) */ | |
158 | ||
cdbfad1c ILT |
159 | if (i_fxdhdrp->version > 0xFFFF) |
160 | goto got_wrong_format_error; | |
c3e964b9 FF |
161 | |
162 | /* There's no supported way to check for 32 bit versus 64 bit addresses, | |
163 | so ignore this distinction for now. (FIXME) */ | |
164 | ||
45a78ebb ILT |
165 | /* FIXME: Any return(NULL) exits below here will leak memory (tdata). |
166 | And a memory leak also means we lost the real tdata info we wanted | |
167 | to save, because it was in the leaked memory. */ | |
c3e964b9 FF |
168 | |
169 | /* Swap in the rest of the fixed length header. */ | |
170 | ||
c3e964b9 FF |
171 | if (!nlm_swap_variable_header_in (abfd) |
172 | || !nlm_swap_auxiliary_headers_in (abfd) | |
173 | || !add_bfd_section (abfd, NLM_CODE_NAME, | |
326e32d7 ILT |
174 | i_fxdhdrp->codeImageOffset, |
175 | i_fxdhdrp->codeImageSize, | |
176 | (SEC_CODE | SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | |
177 | | SEC_RELOC)) | |
c3e964b9 | 178 | || !add_bfd_section (abfd, NLM_INITIALIZED_DATA_NAME, |
326e32d7 ILT |
179 | i_fxdhdrp->dataImageOffset, |
180 | i_fxdhdrp->dataImageSize, | |
181 | (SEC_DATA | SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | |
182 | | SEC_RELOC)) | |
c3e964b9 FF |
183 | || !add_bfd_section (abfd, NLM_UNINITIALIZED_DATA_NAME, |
184 | (file_ptr) 0, | |
326e32d7 | 185 | i_fxdhdrp->uninitializedDataSize, |
b6e7553c | 186 | SEC_ALLOC)) |
cdbfad1c | 187 | goto got_wrong_format_error; |
c3e964b9 | 188 | |
b6e7553c FF |
189 | if (nlm_fixed_header (abfd)->numberOfRelocationFixups != 0 |
190 | || nlm_fixed_header (abfd)->numberOfExternalReferences != 0) | |
191 | abfd->flags |= HAS_RELOC; | |
192 | if (nlm_fixed_header (abfd)->numberOfPublics != 0 | |
45a78ebb ILT |
193 | || nlm_fixed_header (abfd)->numberOfDebugRecords != 0 |
194 | || nlm_fixed_header (abfd)->numberOfExternalReferences != 0) | |
b6e7553c FF |
195 | abfd->flags |= HAS_SYMS; |
196 | ||
197 | arch = nlm_architecture (abfd); | |
198 | if (arch != bfd_arch_unknown) | |
199 | bfd_default_set_arch_mach (abfd, arch, (unsigned long) 0); | |
200 | ||
80425e6c JK |
201 | if (x_fxdhdr != NULL) |
202 | free (x_fxdhdr); | |
326e32d7 | 203 | return (abfd->xvec); |
cdbfad1c | 204 | |
326e32d7 | 205 | got_wrong_format_error: |
80425e6c | 206 | bfd_set_error (bfd_error_wrong_format); |
326e32d7 | 207 | got_no_match: |
cdbfad1c | 208 | nlm_tdata (abfd) = preserved_tdata; |
80425e6c JK |
209 | if (x_fxdhdr != NULL) |
210 | free (x_fxdhdr); | |
cdbfad1c | 211 | return (NULL); |
c3e964b9 FF |
212 | } |
213 | ||
214 | /* Add a section to the bfd. */ | |
215 | ||
216 | static boolean | |
326e32d7 ILT |
217 | add_bfd_section (abfd, name, offset, size, flags) |
218 | bfd *abfd; | |
219 | char *name; | |
220 | file_ptr offset; | |
221 | bfd_size_type size; | |
222 | flagword flags; | |
c3e964b9 FF |
223 | { |
224 | asection *newsect; | |
225 | ||
226 | newsect = bfd_make_section (abfd, name); | |
227 | if (newsect == NULL) | |
228 | { | |
229 | return (false); | |
230 | } | |
326e32d7 ILT |
231 | newsect->vma = 0; /* NLM's are relocatable. */ |
232 | newsect->_raw_size = size; | |
233 | newsect->filepos = offset; | |
234 | newsect->flags = flags; | |
235 | newsect->alignment_power = bfd_log2 (0); /* FIXME */ | |
c3e964b9 FF |
236 | return (true); |
237 | } | |
238 | ||
c3e964b9 FF |
239 | /* Read and swap in the variable length header. All the fields must |
240 | exist in the NLM, and must exist in the order they are read here. */ | |
241 | ||
242 | static boolean | |
326e32d7 ILT |
243 | nlm_swap_variable_header_in (abfd) |
244 | bfd *abfd; | |
c3e964b9 | 245 | { |
326e32d7 | 246 | unsigned char temp[NLM_TARGET_LONG_SIZE]; |
c3e964b9 FF |
247 | |
248 | /* Read the description length and text members. */ | |
249 | ||
326e32d7 ILT |
250 | if (bfd_read ((PTR) & nlm_variable_header (abfd)->descriptionLength, |
251 | sizeof (nlm_variable_header (abfd)->descriptionLength), | |
c3e964b9 | 252 | 1, abfd) != |
326e32d7 | 253 | sizeof (nlm_variable_header (abfd)->descriptionLength)) |
4002f18a | 254 | return (false); |
326e32d7 ILT |
255 | if (bfd_read ((PTR) nlm_variable_header (abfd)->descriptionText, |
256 | nlm_variable_header (abfd)->descriptionLength + 1, | |
c3e964b9 | 257 | 1, abfd) != |
326e32d7 | 258 | nlm_variable_header (abfd)->descriptionLength + 1) |
4002f18a | 259 | return (false); |
c3e964b9 FF |
260 | |
261 | /* Read and convert the stackSize field. */ | |
262 | ||
f03b1f0d | 263 | if (bfd_read ((PTR) temp, sizeof (temp), 1, abfd) != sizeof (temp)) |
4002f18a | 264 | return (false); |
326e32d7 | 265 | nlm_variable_header (abfd)->stackSize = get_word (abfd, (bfd_byte *) temp); |
c3e964b9 FF |
266 | |
267 | /* Read and convert the reserved field. */ | |
268 | ||
f03b1f0d | 269 | if (bfd_read ((PTR) temp, sizeof (temp), 1, abfd) != sizeof (temp)) |
4002f18a | 270 | return (false); |
326e32d7 | 271 | nlm_variable_header (abfd)->reserved = get_word (abfd, (bfd_byte *) temp); |
c3e964b9 FF |
272 | |
273 | /* Read the oldThreadName field. This field is a fixed length string. */ | |
274 | ||
326e32d7 ILT |
275 | if (bfd_read ((PTR) nlm_variable_header (abfd)->oldThreadName, |
276 | sizeof (nlm_variable_header (abfd)->oldThreadName), | |
c3e964b9 | 277 | 1, abfd) != |
326e32d7 | 278 | sizeof (nlm_variable_header (abfd)->oldThreadName)) |
4002f18a | 279 | return (false); |
c3e964b9 FF |
280 | |
281 | /* Read the screen name length and text members. */ | |
282 | ||
326e32d7 ILT |
283 | if (bfd_read ((PTR) & nlm_variable_header (abfd)->screenNameLength, |
284 | sizeof (nlm_variable_header (abfd)->screenNameLength), | |
c3e964b9 | 285 | 1, abfd) != |
326e32d7 | 286 | sizeof (nlm_variable_header (abfd)->screenNameLength)) |
4002f18a | 287 | return (false); |
326e32d7 ILT |
288 | if (bfd_read ((PTR) nlm_variable_header (abfd)->screenName, |
289 | nlm_variable_header (abfd)->screenNameLength + 1, | |
c3e964b9 | 290 | 1, abfd) != |
326e32d7 | 291 | nlm_variable_header (abfd)->screenNameLength + 1) |
4002f18a | 292 | return (false); |
c3e964b9 FF |
293 | |
294 | /* Read the thread name length and text members. */ | |
295 | ||
326e32d7 ILT |
296 | if (bfd_read ((PTR) & nlm_variable_header (abfd)->threadNameLength, |
297 | sizeof (nlm_variable_header (abfd)->threadNameLength), | |
c3e964b9 | 298 | 1, abfd) != |
326e32d7 | 299 | sizeof (nlm_variable_header (abfd)->threadNameLength)) |
4002f18a | 300 | return (false); |
326e32d7 ILT |
301 | if (bfd_read ((PTR) nlm_variable_header (abfd)->threadName, |
302 | nlm_variable_header (abfd)->threadNameLength + 1, | |
c3e964b9 | 303 | 1, abfd) != |
326e32d7 | 304 | nlm_variable_header (abfd)->threadNameLength + 1) |
4002f18a | 305 | return (false); |
c3e964b9 FF |
306 | return (true); |
307 | } | |
308 | ||
b6e7553c FF |
309 | /* Swap and write out the variable length header. All the fields must |
310 | exist in the NLM, and must exist in this order. */ | |
311 | ||
312 | static boolean | |
326e32d7 ILT |
313 | nlm_swap_variable_header_out (abfd) |
314 | bfd *abfd; | |
b6e7553c | 315 | { |
326e32d7 | 316 | unsigned char temp[NLM_TARGET_LONG_SIZE]; |
b6e7553c FF |
317 | |
318 | /* Write the description length and text members. */ | |
319 | ||
326e32d7 ILT |
320 | if (bfd_write ((PTR) & nlm_variable_header (abfd)->descriptionLength, |
321 | sizeof (nlm_variable_header (abfd)->descriptionLength), | |
b6e7553c | 322 | 1, abfd) != |
326e32d7 | 323 | sizeof (nlm_variable_header (abfd)->descriptionLength)) |
4002f18a | 324 | return (false); |
326e32d7 ILT |
325 | if (bfd_write ((PTR) nlm_variable_header (abfd)->descriptionText, |
326 | nlm_variable_header (abfd)->descriptionLength + 1, | |
b6e7553c | 327 | 1, abfd) != |
326e32d7 | 328 | nlm_variable_header (abfd)->descriptionLength + 1) |
4002f18a | 329 | return (false); |
b6e7553c FF |
330 | |
331 | /* Convert and write the stackSize field. */ | |
332 | ||
326e32d7 | 333 | put_word (abfd, (bfd_vma) nlm_variable_header (abfd)->stackSize, |
b6e7553c FF |
334 | (bfd_byte *) temp); |
335 | if (bfd_write ((PTR) temp, sizeof (temp), 1, abfd) != sizeof (temp)) | |
4002f18a | 336 | return (false); |
b6e7553c FF |
337 | |
338 | /* Convert and write the reserved field. */ | |
339 | ||
326e32d7 | 340 | put_word (abfd, (bfd_vma) nlm_variable_header (abfd)->reserved, |
b6e7553c FF |
341 | (bfd_byte *) temp); |
342 | if (bfd_write ((PTR) temp, sizeof (temp), 1, abfd) != sizeof (temp)) | |
4002f18a | 343 | return (false); |
b6e7553c FF |
344 | |
345 | /* Write the oldThreadName field. This field is a fixed length string. */ | |
346 | ||
326e32d7 ILT |
347 | if (bfd_write ((PTR) nlm_variable_header (abfd)->oldThreadName, |
348 | sizeof (nlm_variable_header (abfd)->oldThreadName), | |
b6e7553c | 349 | 1, abfd) != |
326e32d7 | 350 | sizeof (nlm_variable_header (abfd)->oldThreadName)) |
4002f18a | 351 | return (false); |
b6e7553c FF |
352 | |
353 | /* Write the screen name length and text members. */ | |
354 | ||
326e32d7 ILT |
355 | if (bfd_write ((PTR) & nlm_variable_header (abfd)->screenNameLength, |
356 | sizeof (nlm_variable_header (abfd)->screenNameLength), | |
b6e7553c | 357 | 1, abfd) != |
326e32d7 | 358 | sizeof (nlm_variable_header (abfd)->screenNameLength)) |
4002f18a | 359 | return (false); |
326e32d7 ILT |
360 | if (bfd_write ((PTR) nlm_variable_header (abfd)->screenName, |
361 | nlm_variable_header (abfd)->screenNameLength + 1, | |
b6e7553c | 362 | 1, abfd) != |
326e32d7 | 363 | nlm_variable_header (abfd)->screenNameLength + 1) |
4002f18a | 364 | return (false); |
b6e7553c FF |
365 | |
366 | /* Write the thread name length and text members. */ | |
367 | ||
326e32d7 ILT |
368 | if (bfd_write ((PTR) & nlm_variable_header (abfd)->threadNameLength, |
369 | sizeof (nlm_variable_header (abfd)->threadNameLength), | |
b6e7553c | 370 | 1, abfd) != |
326e32d7 | 371 | sizeof (nlm_variable_header (abfd)->threadNameLength)) |
4002f18a | 372 | return (false); |
326e32d7 ILT |
373 | if (bfd_write ((PTR) nlm_variable_header (abfd)->threadName, |
374 | nlm_variable_header (abfd)->threadNameLength + 1, | |
b6e7553c | 375 | 1, abfd) != |
326e32d7 | 376 | nlm_variable_header (abfd)->threadNameLength + 1) |
4002f18a | 377 | return (false); |
b6e7553c FF |
378 | return (true); |
379 | } | |
380 | ||
c3e964b9 FF |
381 | /* Read and swap in the contents of all the auxiliary headers. Because of |
382 | the braindead design, we have to do strcmps on strings of indeterminate | |
383 | length to figure out what each auxiliary header is. Even worse, we have | |
384 | no way of knowing how many auxiliary headers there are or where the end | |
385 | of the auxiliary headers are, except by finding something that doesn't | |
386 | look like a known auxiliary header. This means that the first new type | |
387 | of auxiliary header added will break all existing tools that don't | |
388 | recognize it. */ | |
389 | ||
390 | static boolean | |
326e32d7 ILT |
391 | nlm_swap_auxiliary_headers_in (abfd) |
392 | bfd *abfd; | |
c3e964b9 | 393 | { |
326e32d7 | 394 | char tempstr[16]; |
c3e964b9 FF |
395 | long position; |
396 | ||
397 | for (;;) | |
398 | { | |
399 | position = bfd_tell (abfd); | |
400 | if (bfd_read ((PTR) tempstr, sizeof (tempstr), 1, abfd) != | |
401 | sizeof (tempstr)) | |
4002f18a | 402 | return (false); |
c3e964b9 | 403 | if (bfd_seek (abfd, position, SEEK_SET) == -1) |
4002f18a | 404 | return (false); |
c3e964b9 FF |
405 | if (strncmp (tempstr, "VeRsIoN#", 8) == 0) |
406 | { | |
407 | Nlm_External_Version_Header thdr; | |
326e32d7 | 408 | if (bfd_read ((PTR) & thdr, sizeof (thdr), 1, abfd) != sizeof (thdr)) |
4002f18a | 409 | return (false); |
326e32d7 | 410 | memcpy (nlm_version_header (abfd)->stamp, thdr.stamp, |
c3e964b9 | 411 | sizeof (thdr.stamp)); |
326e32d7 | 412 | nlm_version_header (abfd)->majorVersion = |
c3e964b9 | 413 | get_word (abfd, (bfd_byte *) thdr.majorVersion); |
326e32d7 | 414 | nlm_version_header (abfd)->minorVersion = |
c3e964b9 | 415 | get_word (abfd, (bfd_byte *) thdr.minorVersion); |
326e32d7 | 416 | nlm_version_header (abfd)->revision = |
c3e964b9 | 417 | get_word (abfd, (bfd_byte *) thdr.revision); |
326e32d7 | 418 | nlm_version_header (abfd)->year = |
c3e964b9 | 419 | get_word (abfd, (bfd_byte *) thdr.year); |
326e32d7 | 420 | nlm_version_header (abfd)->month = |
c3e964b9 | 421 | get_word (abfd, (bfd_byte *) thdr.month); |
326e32d7 | 422 | nlm_version_header (abfd)->day = |
c3e964b9 FF |
423 | get_word (abfd, (bfd_byte *) thdr.day); |
424 | } | |
425 | else if (strncmp (tempstr, "MeSsAgEs", 8) == 0) | |
426 | { | |
427 | Nlm_External_Extended_Header thdr; | |
326e32d7 | 428 | if (bfd_read ((PTR) & thdr, sizeof (thdr), 1, abfd) != sizeof (thdr)) |
4002f18a | 429 | return (false); |
326e32d7 | 430 | memcpy (nlm_extended_header (abfd)->stamp, thdr.stamp, |
c3e964b9 | 431 | sizeof (thdr.stamp)); |
326e32d7 | 432 | nlm_extended_header (abfd)->languageID = |
c3e964b9 | 433 | get_word (abfd, (bfd_byte *) thdr.languageID); |
326e32d7 | 434 | nlm_extended_header (abfd)->messageFileOffset = |
c3e964b9 | 435 | get_word (abfd, (bfd_byte *) thdr.messageFileOffset); |
326e32d7 | 436 | nlm_extended_header (abfd)->messageFileLength = |
c3e964b9 | 437 | get_word (abfd, (bfd_byte *) thdr.messageFileLength); |
326e32d7 | 438 | nlm_extended_header (abfd)->messageCount = |
c3e964b9 | 439 | get_word (abfd, (bfd_byte *) thdr.messageCount); |
326e32d7 | 440 | nlm_extended_header (abfd)->helpFileOffset = |
c3e964b9 | 441 | get_word (abfd, (bfd_byte *) thdr.helpFileOffset); |
326e32d7 | 442 | nlm_extended_header (abfd)->helpFileLength = |
c3e964b9 | 443 | get_word (abfd, (bfd_byte *) thdr.helpFileLength); |
326e32d7 | 444 | nlm_extended_header (abfd)->RPCDataOffset = |
c3e964b9 | 445 | get_word (abfd, (bfd_byte *) thdr.RPCDataOffset); |
326e32d7 | 446 | nlm_extended_header (abfd)->RPCDataLength = |
c3e964b9 | 447 | get_word (abfd, (bfd_byte *) thdr.RPCDataLength); |
326e32d7 | 448 | nlm_extended_header (abfd)->sharedCodeOffset = |
c3e964b9 | 449 | get_word (abfd, (bfd_byte *) thdr.sharedCodeOffset); |
326e32d7 | 450 | nlm_extended_header (abfd)->sharedCodeLength = |
c3e964b9 | 451 | get_word (abfd, (bfd_byte *) thdr.sharedCodeLength); |
326e32d7 | 452 | nlm_extended_header (abfd)->sharedDataOffset = |
c3e964b9 | 453 | get_word (abfd, (bfd_byte *) thdr.sharedDataOffset); |
326e32d7 | 454 | nlm_extended_header (abfd)->sharedDataLength = |
c3e964b9 | 455 | get_word (abfd, (bfd_byte *) thdr.sharedDataLength); |
326e32d7 | 456 | nlm_extended_header (abfd)->sharedRelocationFixupOffset = |
c3e964b9 | 457 | get_word (abfd, (bfd_byte *) thdr.sharedRelocationFixupOffset); |
326e32d7 | 458 | nlm_extended_header (abfd)->sharedRelocationFixupCount = |
c3e964b9 | 459 | get_word (abfd, (bfd_byte *) thdr.sharedRelocationFixupCount); |
326e32d7 | 460 | nlm_extended_header (abfd)->sharedExternalReferenceOffset = |
c3e964b9 | 461 | get_word (abfd, (bfd_byte *) thdr.sharedExternalReferenceOffset); |
326e32d7 | 462 | nlm_extended_header (abfd)->sharedExternalReferenceCount = |
c3e964b9 | 463 | get_word (abfd, (bfd_byte *) thdr.sharedExternalReferenceCount); |
326e32d7 | 464 | nlm_extended_header (abfd)->sharedPublicsOffset = |
c3e964b9 | 465 | get_word (abfd, (bfd_byte *) thdr.sharedPublicsOffset); |
326e32d7 | 466 | nlm_extended_header (abfd)->sharedPublicsCount = |
c3e964b9 | 467 | get_word (abfd, (bfd_byte *) thdr.sharedPublicsCount); |
326e32d7 | 468 | nlm_extended_header (abfd)->sharedDebugRecordOffset = |
cdbfad1c | 469 | get_word (abfd, (bfd_byte *) thdr.sharedDebugRecordOffset); |
326e32d7 | 470 | nlm_extended_header (abfd)->sharedDebugRecordCount = |
cdbfad1c | 471 | get_word (abfd, (bfd_byte *) thdr.sharedDebugRecordCount); |
326e32d7 | 472 | nlm_extended_header (abfd)->SharedInitializationOffset = |
c3e964b9 | 473 | get_word (abfd, (bfd_byte *) thdr.sharedInitializationOffset); |
326e32d7 | 474 | nlm_extended_header (abfd)->SharedExitProcedureOffset = |
c3e964b9 | 475 | get_word (abfd, (bfd_byte *) thdr.SharedExitProcedureOffset); |
326e32d7 | 476 | nlm_extended_header (abfd)->productID = |
c3e964b9 | 477 | get_word (abfd, (bfd_byte *) thdr.productID); |
326e32d7 | 478 | nlm_extended_header (abfd)->reserved0 = |
c3e964b9 | 479 | get_word (abfd, (bfd_byte *) thdr.reserved0); |
326e32d7 | 480 | nlm_extended_header (abfd)->reserved1 = |
c3e964b9 | 481 | get_word (abfd, (bfd_byte *) thdr.reserved1); |
326e32d7 | 482 | nlm_extended_header (abfd)->reserved2 = |
c3e964b9 | 483 | get_word (abfd, (bfd_byte *) thdr.reserved2); |
326e32d7 | 484 | nlm_extended_header (abfd)->reserved3 = |
c3e964b9 | 485 | get_word (abfd, (bfd_byte *) thdr.reserved3); |
326e32d7 | 486 | nlm_extended_header (abfd)->reserved4 = |
c3e964b9 | 487 | get_word (abfd, (bfd_byte *) thdr.reserved4); |
326e32d7 | 488 | nlm_extended_header (abfd)->reserved5 = |
c3e964b9 FF |
489 | get_word (abfd, (bfd_byte *) thdr.reserved5); |
490 | } | |
491 | else if (strncmp (tempstr, "CuStHeAd", 8) == 0) | |
492 | { | |
493 | Nlm_External_Custom_Header thdr; | |
326e32d7 | 494 | if (bfd_read ((PTR) & thdr, sizeof (thdr), 1, abfd) != sizeof (thdr)) |
4002f18a | 495 | return (false); |
326e32d7 | 496 | memcpy (nlm_custom_header (abfd)->stamp, thdr.stamp, |
c3e964b9 | 497 | sizeof (thdr.stamp)); |
326e32d7 | 498 | nlm_custom_header (abfd)->dataLength = |
c3e964b9 | 499 | get_word (abfd, (bfd_byte *) thdr.dataLength); |
326e32d7 | 500 | nlm_custom_header (abfd)->debugRecOffset = |
c3e964b9 | 501 | get_word (abfd, (bfd_byte *) thdr.debugRecOffset); |
326e32d7 | 502 | nlm_custom_header (abfd)->debugRecLength = |
c3e964b9 FF |
503 | get_word (abfd, (bfd_byte *) thdr.debugRecLength); |
504 | } | |
505 | else if (strncmp (tempstr, "CoPyRiGhT=", 10) == 0) | |
506 | { | |
9783e04a | 507 | if (bfd_read ((PTR) nlm_copyright_header (abfd)->stamp, |
45a78ebb ILT |
508 | sizeof (nlm_copyright_header (abfd)->stamp), |
509 | 1, abfd) | |
510 | != sizeof (nlm_copyright_header (abfd)->stamp)) | |
4002f18a | 511 | return (false); |
326e32d7 ILT |
512 | if (bfd_read ((PTR) & (nlm_copyright_header (abfd) |
513 | ->copyrightMessageLength), | |
45a78ebb | 514 | 1, 1, abfd) != 1) |
4002f18a | 515 | return (false); |
c3e964b9 | 516 | /* The copyright message is a variable length string. */ |
326e32d7 ILT |
517 | if (bfd_read ((PTR) nlm_copyright_header (abfd)->copyrightMessage, |
518 | nlm_copyright_header (abfd)->copyrightMessageLength + 1, | |
c3e964b9 | 519 | 1, abfd) != |
326e32d7 | 520 | nlm_copyright_header (abfd)->copyrightMessageLength + 1) |
4002f18a | 521 | return (false); |
c3e964b9 FF |
522 | } |
523 | else | |
524 | { | |
525 | break; | |
526 | } | |
527 | } | |
b6e7553c FF |
528 | return (true); |
529 | } | |
530 | ||
531 | /* Return whether there is a non-zero byte in a memory block. */ | |
532 | ||
533 | static boolean | |
534 | find_nonzero (buf, size) | |
535 | PTR buf; | |
536 | size_t size; | |
537 | { | |
538 | char *p = (char *) buf; | |
539 | ||
540 | while (size-- != 0) | |
541 | if (*p++ != 0) | |
542 | return true; | |
543 | return false; | |
544 | } | |
545 | ||
546 | /* Swap out the contents of the auxiliary headers. We create those | |
547 | auxiliary headers which have been set non-zero. We do not require | |
548 | the caller to set up the stamp fields. */ | |
549 | ||
550 | static boolean | |
551 | nlm_swap_auxiliary_headers_out (abfd) | |
552 | bfd *abfd; | |
553 | { | |
554 | /* Write out the version header if there is one. */ | |
555 | if (find_nonzero ((PTR) nlm_version_header (abfd), | |
556 | sizeof (Nlm_Internal_Version_Header))) | |
557 | { | |
558 | Nlm_External_Version_Header thdr; | |
559 | ||
560 | memcpy (thdr.stamp, "VeRsIoN#", 8); | |
326e32d7 | 561 | put_word (abfd, (bfd_vma) nlm_version_header (abfd)->majorVersion, |
b6e7553c | 562 | (bfd_byte *) thdr.majorVersion); |
326e32d7 | 563 | put_word (abfd, (bfd_vma) nlm_version_header (abfd)->minorVersion, |
b6e7553c | 564 | (bfd_byte *) thdr.minorVersion); |
326e32d7 | 565 | put_word (abfd, (bfd_vma) nlm_version_header (abfd)->revision, |
b6e7553c | 566 | (bfd_byte *) thdr.revision); |
326e32d7 | 567 | put_word (abfd, (bfd_vma) nlm_version_header (abfd)->year, |
b6e7553c | 568 | (bfd_byte *) thdr.year); |
326e32d7 | 569 | put_word (abfd, (bfd_vma) nlm_version_header (abfd)->month, |
b6e7553c | 570 | (bfd_byte *) thdr.month); |
326e32d7 | 571 | put_word (abfd, (bfd_vma) nlm_version_header (abfd)->day, |
b6e7553c | 572 | (bfd_byte *) thdr.day); |
326e32d7 | 573 | if (bfd_write ((PTR) & thdr, sizeof (thdr), 1, abfd) != sizeof (thdr)) |
4002f18a | 574 | return false; |
b6e7553c FF |
575 | } |
576 | ||
577 | /* Write out the extended header if there is one. */ | |
578 | if (find_nonzero ((PTR) nlm_extended_header (abfd), | |
579 | sizeof (Nlm_Internal_Extended_Header))) | |
580 | { | |
581 | Nlm_External_Extended_Header thdr; | |
582 | ||
583 | memcpy (thdr.stamp, "MeSsAgEs", 8); | |
584 | put_word (abfd, | |
326e32d7 | 585 | (bfd_vma) nlm_extended_header (abfd)->languageID, |
b6e7553c FF |
586 | (bfd_byte *) thdr.languageID); |
587 | put_word (abfd, | |
326e32d7 | 588 | (bfd_vma) nlm_extended_header (abfd)->messageFileOffset, |
b6e7553c FF |
589 | (bfd_byte *) thdr.messageFileOffset); |
590 | put_word (abfd, | |
326e32d7 | 591 | (bfd_vma) nlm_extended_header (abfd)->messageFileLength, |
b6e7553c FF |
592 | (bfd_byte *) thdr.messageFileLength); |
593 | put_word (abfd, | |
326e32d7 | 594 | (bfd_vma) nlm_extended_header (abfd)->messageCount, |
b6e7553c FF |
595 | (bfd_byte *) thdr.messageCount); |
596 | put_word (abfd, | |
326e32d7 | 597 | (bfd_vma) nlm_extended_header (abfd)->helpFileOffset, |
b6e7553c FF |
598 | (bfd_byte *) thdr.helpFileOffset); |
599 | put_word (abfd, | |
326e32d7 | 600 | (bfd_vma) nlm_extended_header (abfd)->helpFileLength, |
b6e7553c FF |
601 | (bfd_byte *) thdr.helpFileLength); |
602 | put_word (abfd, | |
326e32d7 | 603 | (bfd_vma) nlm_extended_header (abfd)->RPCDataOffset, |
b6e7553c FF |
604 | (bfd_byte *) thdr.RPCDataOffset); |
605 | put_word (abfd, | |
326e32d7 | 606 | (bfd_vma) nlm_extended_header (abfd)->RPCDataLength, |
b6e7553c FF |
607 | (bfd_byte *) thdr.RPCDataLength); |
608 | put_word (abfd, | |
326e32d7 | 609 | (bfd_vma) nlm_extended_header (abfd)->sharedCodeOffset, |
b6e7553c FF |
610 | (bfd_byte *) thdr.sharedCodeOffset); |
611 | put_word (abfd, | |
326e32d7 | 612 | (bfd_vma) nlm_extended_header (abfd)->sharedCodeLength, |
b6e7553c FF |
613 | (bfd_byte *) thdr.sharedCodeLength); |
614 | put_word (abfd, | |
326e32d7 | 615 | (bfd_vma) nlm_extended_header (abfd)->sharedDataOffset, |
b6e7553c FF |
616 | (bfd_byte *) thdr.sharedDataOffset); |
617 | put_word (abfd, | |
326e32d7 | 618 | (bfd_vma) nlm_extended_header (abfd)->sharedDataLength, |
b6e7553c FF |
619 | (bfd_byte *) thdr.sharedDataLength); |
620 | put_word (abfd, | |
326e32d7 | 621 | (bfd_vma) nlm_extended_header (abfd)->sharedRelocationFixupOffset, |
b6e7553c FF |
622 | (bfd_byte *) thdr.sharedRelocationFixupOffset); |
623 | put_word (abfd, | |
326e32d7 | 624 | (bfd_vma) nlm_extended_header (abfd)->sharedRelocationFixupCount, |
b6e7553c FF |
625 | (bfd_byte *) thdr.sharedRelocationFixupCount); |
626 | put_word (abfd, | |
326e32d7 | 627 | (bfd_vma) nlm_extended_header (abfd)->sharedExternalReferenceOffset, |
b6e7553c FF |
628 | (bfd_byte *) thdr.sharedExternalReferenceOffset); |
629 | put_word (abfd, | |
326e32d7 | 630 | (bfd_vma) nlm_extended_header (abfd)->sharedExternalReferenceCount, |
b6e7553c FF |
631 | (bfd_byte *) thdr.sharedExternalReferenceCount); |
632 | put_word (abfd, | |
326e32d7 | 633 | (bfd_vma) nlm_extended_header (abfd)->sharedPublicsOffset, |
b6e7553c FF |
634 | (bfd_byte *) thdr.sharedPublicsOffset); |
635 | put_word (abfd, | |
326e32d7 | 636 | (bfd_vma) nlm_extended_header (abfd)->sharedPublicsCount, |
b6e7553c | 637 | (bfd_byte *) thdr.sharedPublicsCount); |
cdbfad1c | 638 | put_word (abfd, |
326e32d7 | 639 | (bfd_vma) nlm_extended_header (abfd)->sharedDebugRecordOffset, |
cdbfad1c ILT |
640 | (bfd_byte *) thdr.sharedDebugRecordOffset); |
641 | put_word (abfd, | |
326e32d7 | 642 | (bfd_vma) nlm_extended_header (abfd)->sharedDebugRecordCount, |
cdbfad1c | 643 | (bfd_byte *) thdr.sharedDebugRecordCount); |
b6e7553c | 644 | put_word (abfd, |
326e32d7 | 645 | (bfd_vma) nlm_extended_header (abfd)->SharedInitializationOffset, |
b6e7553c FF |
646 | (bfd_byte *) thdr.sharedInitializationOffset); |
647 | put_word (abfd, | |
326e32d7 | 648 | (bfd_vma) nlm_extended_header (abfd)->SharedExitProcedureOffset, |
b6e7553c FF |
649 | (bfd_byte *) thdr.SharedExitProcedureOffset); |
650 | put_word (abfd, | |
326e32d7 | 651 | (bfd_vma) nlm_extended_header (abfd)->productID, |
b6e7553c FF |
652 | (bfd_byte *) thdr.productID); |
653 | put_word (abfd, | |
326e32d7 | 654 | (bfd_vma) nlm_extended_header (abfd)->reserved0, |
b6e7553c FF |
655 | (bfd_byte *) thdr.reserved0); |
656 | put_word (abfd, | |
326e32d7 | 657 | (bfd_vma) nlm_extended_header (abfd)->reserved1, |
b6e7553c FF |
658 | (bfd_byte *) thdr.reserved1); |
659 | put_word (abfd, | |
326e32d7 | 660 | (bfd_vma) nlm_extended_header (abfd)->reserved2, |
b6e7553c FF |
661 | (bfd_byte *) thdr.reserved2); |
662 | put_word (abfd, | |
326e32d7 | 663 | (bfd_vma) nlm_extended_header (abfd)->reserved3, |
b6e7553c FF |
664 | (bfd_byte *) thdr.reserved3); |
665 | put_word (abfd, | |
326e32d7 | 666 | (bfd_vma) nlm_extended_header (abfd)->reserved4, |
b6e7553c FF |
667 | (bfd_byte *) thdr.reserved4); |
668 | put_word (abfd, | |
326e32d7 | 669 | (bfd_vma) nlm_extended_header (abfd)->reserved5, |
b6e7553c | 670 | (bfd_byte *) thdr.reserved5); |
326e32d7 | 671 | if (bfd_write ((PTR) & thdr, sizeof (thdr), 1, abfd) != sizeof (thdr)) |
4002f18a | 672 | return false; |
b6e7553c FF |
673 | } |
674 | ||
675 | /* Write out the custom header if there is one. */ | |
676 | if (find_nonzero ((PTR) nlm_custom_header (abfd), | |
677 | sizeof (Nlm_Internal_Custom_Header))) | |
678 | { | |
679 | Nlm_External_Custom_Header thdr; | |
680 | ||
681 | /* Right now we assume the custom header is always the suggested | |
682 | format for alternate debugging records. */ | |
326e32d7 | 683 | BFD_ASSERT (nlm_custom_header (abfd)->dataLength == 8); |
b6e7553c FF |
684 | |
685 | memcpy (thdr.stamp, "CuStHeAd", 8); | |
326e32d7 | 686 | put_word (abfd, (bfd_vma) nlm_custom_header (abfd)->dataLength, |
b6e7553c | 687 | (bfd_byte *) thdr.dataLength); |
326e32d7 | 688 | put_word (abfd, (bfd_vma) nlm_custom_header (abfd)->debugRecOffset, |
b6e7553c | 689 | (bfd_byte *) thdr.debugRecOffset); |
326e32d7 | 690 | put_word (abfd, (bfd_vma) nlm_custom_header (abfd)->debugRecLength, |
b6e7553c | 691 | (bfd_byte *) thdr.debugRecLength); |
326e32d7 | 692 | if (bfd_write ((PTR) & thdr, sizeof (thdr), 1, abfd) != sizeof (thdr)) |
4002f18a | 693 | return false; |
b6e7553c FF |
694 | } |
695 | ||
696 | /* Write out the copyright header if there is one. */ | |
697 | if (find_nonzero ((PTR) nlm_copyright_header (abfd), | |
698 | sizeof (Nlm_Internal_Copyright_Header))) | |
699 | { | |
700 | Nlm_External_Copyright_Header thdr; | |
701 | ||
702 | memcpy (thdr.stamp, "CoPyRiGhT=", 10); | |
45a78ebb ILT |
703 | if (bfd_write ((PTR) thdr.stamp, sizeof (thdr.stamp), 1, abfd) |
704 | != sizeof (thdr.stamp)) | |
4002f18a | 705 | return false; |
45a78ebb ILT |
706 | thdr.copyrightMessageLength[0] = |
707 | nlm_copyright_header (abfd)->copyrightMessageLength; | |
708 | if (bfd_write ((PTR) thdr.copyrightMessageLength, 1, 1, abfd) != 1) | |
4002f18a | 709 | return false; |
b6e7553c | 710 | /* The copyright message is a variable length string. */ |
326e32d7 ILT |
711 | if (bfd_write ((PTR) nlm_copyright_header (abfd)->copyrightMessage, |
712 | nlm_copyright_header (abfd)->copyrightMessageLength + 1, | |
b6e7553c | 713 | 1, abfd) != |
326e32d7 | 714 | nlm_copyright_header (abfd)->copyrightMessageLength + 1) |
4002f18a | 715 | return false; |
b6e7553c FF |
716 | } |
717 | ||
718 | return true; | |
c3e964b9 FF |
719 | } |
720 | ||
721 | /* We read the NLM's public symbols and use it to generate a bfd symbol | |
722 | table (hey, it's better than nothing) on a one-for-one basis. Thus | |
723 | use the number of public symbols as the number of bfd symbols we will | |
724 | have once we actually get around to reading them in. | |
725 | ||
726 | Return the number of bytes required to hold the symtab vector, based on | |
727 | the count plus 1, since we will NULL terminate the vector allocated based | |
728 | on this size. */ | |
729 | ||
326e32d7 ILT |
730 | long |
731 | nlm_get_symtab_upper_bound (abfd) | |
732 | bfd *abfd; | |
c3e964b9 FF |
733 | { |
734 | Nlm_Internal_Fixed_Header *i_fxdhdrp; /* Nlm file header, internal form */ | |
326e32d7 ILT |
735 | long symcount; |
736 | long symtab_size = 0; | |
c3e964b9 FF |
737 | |
738 | i_fxdhdrp = nlm_fixed_header (abfd); | |
326e32d7 ILT |
739 | symcount = (i_fxdhdrp->numberOfPublics |
740 | + i_fxdhdrp->numberOfDebugRecords | |
741 | + i_fxdhdrp->numberOfExternalReferences); | |
c3e964b9 FF |
742 | symtab_size = (symcount + 1) * (sizeof (asymbol)); |
743 | return (symtab_size); | |
744 | } | |
745 | ||
746 | /* Note that bfd_get_symcount is guaranteed to be zero if slurping the | |
747 | symbol table fails. */ | |
748 | ||
326e32d7 | 749 | long |
b6e7553c FF |
750 | nlm_get_symtab (abfd, alocation) |
751 | bfd *abfd; | |
752 | asymbol **alocation; | |
c3e964b9 | 753 | { |
b6e7553c FF |
754 | nlm_symbol_type *symbase; |
755 | bfd_size_type counter = 0; | |
756 | ||
757 | if (nlm_slurp_symbol_table (abfd) == false) | |
326e32d7 | 758 | return -1; |
b6e7553c FF |
759 | symbase = nlm_get_symbols (abfd); |
760 | while (counter < bfd_get_symcount (abfd)) | |
761 | { | |
762 | *alocation++ = &symbase->symbol; | |
763 | symbase++; | |
764 | counter++; | |
765 | } | |
766 | *alocation = (asymbol *) NULL; | |
767 | return bfd_get_symcount (abfd); | |
c3e964b9 FF |
768 | } |
769 | ||
b6e7553c FF |
770 | /* Make an NLM symbol. There is nothing special to do here. */ |
771 | ||
c3e964b9 | 772 | asymbol * |
b6e7553c | 773 | nlm_make_empty_symbol (abfd) |
326e32d7 | 774 | bfd *abfd; |
c3e964b9 | 775 | { |
b6e7553c FF |
776 | nlm_symbol_type *new; |
777 | ||
778 | new = (nlm_symbol_type *) bfd_zalloc (abfd, sizeof (nlm_symbol_type)); | |
9783e04a DM |
779 | if (new) |
780 | new->symbol.the_bfd = abfd; | |
b6e7553c | 781 | return &new->symbol; |
c3e964b9 FF |
782 | } |
783 | ||
b6e7553c FF |
784 | /* Get symbol information. */ |
785 | ||
c3e964b9 | 786 | void |
b6e7553c | 787 | nlm_get_symbol_info (ignore_abfd, symbol, ret) |
326e32d7 ILT |
788 | bfd *ignore_abfd; |
789 | asymbol *symbol; | |
790 | symbol_info *ret; | |
c3e964b9 FF |
791 | { |
792 | bfd_symbol_info (symbol, ret); | |
793 | } | |
794 | ||
b6e7553c FF |
795 | /* Print symbol information. */ |
796 | ||
797 | void | |
798 | nlm_print_symbol (abfd, afile, symbol, how) | |
799 | bfd *abfd; | |
800 | PTR afile; | |
801 | asymbol *symbol; | |
802 | bfd_print_symbol_type how; | |
c3e964b9 | 803 | { |
b6e7553c FF |
804 | FILE *file = (FILE *) afile; |
805 | ||
806 | switch (how) | |
807 | { | |
808 | case bfd_print_symbol_name: | |
809 | case bfd_print_symbol_more: | |
810 | if (symbol->name) | |
326e32d7 | 811 | fprintf (file, "%s", symbol->name); |
b6e7553c FF |
812 | break; |
813 | case bfd_print_symbol_all: | |
814 | bfd_print_symbol_vandf ((PTR) file, symbol); | |
815 | fprintf (file, " %-5s", symbol->section->name); | |
816 | if (symbol->name) | |
326e32d7 | 817 | fprintf (file, " %s", symbol->name); |
b6e7553c FF |
818 | break; |
819 | } | |
c3e964b9 FF |
820 | } |
821 | ||
822 | /* Slurp in nlm symbol table. | |
823 | ||
824 | In the external (in-file) form, NLM export records are variable length, | |
825 | with the following form: | |
826 | ||
827 | 1 byte length of the symbol name (N) | |
828 | N bytes the symbol name | |
829 | 4 bytes the symbol offset from start of it's section | |
830 | ||
45a78ebb ILT |
831 | We also read in the debugging symbols and import records. Import |
832 | records are treated as undefined symbols. As we read the import | |
833 | records we also read in the associated reloc information, which is | |
834 | attached to the symbol. | |
b6e7553c FF |
835 | |
836 | The bfd symbols are copied to SYMPTRS. | |
c3e964b9 FF |
837 | |
838 | When we return, the bfd symcount is either zero or contains the correct | |
839 | number of symbols. | |
840 | */ | |
841 | ||
842 | static boolean | |
b6e7553c FF |
843 | nlm_slurp_symbol_table (abfd) |
844 | bfd *abfd; | |
c3e964b9 FF |
845 | { |
846 | Nlm_Internal_Fixed_Header *i_fxdhdrp; /* Nlm file header, internal form */ | |
326e32d7 ILT |
847 | bfd_size_type totsymcount; /* Number of NLM symbols */ |
848 | bfd_size_type symcount; /* Counter of NLM symbols */ | |
849 | nlm_symbol_type *sym; /* Pointer to current bfd symbol */ | |
850 | unsigned char symlength; /* Symbol length read into here */ | |
851 | unsigned char symtype; /* Type of debugging symbol */ | |
b6e7553c | 852 | bfd_byte temp[NLM_TARGET_LONG_SIZE]; /* Symbol offsets read into here */ |
cdbfad1c ILT |
853 | boolean (*read_import_func) PARAMS ((bfd *, nlm_symbol_type *)); |
854 | boolean (*set_public_section_func) PARAMS ((bfd *, nlm_symbol_type *)); | |
c3e964b9 | 855 | |
b6e7553c FF |
856 | if (nlm_get_symbols (abfd) != NULL) |
857 | return (true); | |
c3e964b9 FF |
858 | |
859 | /* Read each raw NLM symbol, using the information to create a canonical bfd | |
860 | symbol table entry. | |
861 | ||
862 | Note that we allocate the initial bfd canonical symbol buffer based on a | |
863 | one-to-one mapping of the NLM symbols to canonical symbols. We actually | |
864 | use all the NLM symbols, so there will be no space left over at the end. | |
865 | When we have all the symbols, we build the caller's pointer vector. */ | |
866 | ||
326e32d7 | 867 | abfd->symcount = 0; |
c3e964b9 | 868 | i_fxdhdrp = nlm_fixed_header (abfd); |
326e32d7 ILT |
869 | totsymcount = (i_fxdhdrp->numberOfPublics |
870 | + i_fxdhdrp->numberOfDebugRecords | |
871 | + i_fxdhdrp->numberOfExternalReferences); | |
b6e7553c | 872 | if (totsymcount == 0) |
c3e964b9 FF |
873 | { |
874 | return (true); | |
875 | } | |
b6e7553c | 876 | |
326e32d7 | 877 | if (bfd_seek (abfd, i_fxdhdrp->publicsOffset, SEEK_SET) == -1) |
4002f18a | 878 | return (false); |
b6e7553c FF |
879 | |
880 | sym = ((nlm_symbol_type *) | |
881 | bfd_zalloc (abfd, totsymcount * sizeof (nlm_symbol_type))); | |
9783e04a DM |
882 | if (!sym) |
883 | { | |
80425e6c | 884 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
885 | return false; |
886 | } | |
b6e7553c | 887 | nlm_set_symbols (abfd, sym); |
c3e964b9 FF |
888 | |
889 | /* We use the bfd's symcount directly as the control count, so that early | |
890 | termination of the loop leaves the symcount correct for the symbols that | |
891 | were read. */ | |
892 | ||
cdbfad1c | 893 | set_public_section_func = nlm_set_public_section_func (abfd); |
326e32d7 ILT |
894 | symcount = i_fxdhdrp->numberOfPublics; |
895 | while (abfd->symcount < symcount) | |
c3e964b9 | 896 | { |
326e32d7 | 897 | if (bfd_read ((PTR) & symlength, sizeof (symlength), 1, abfd) |
c3e964b9 | 898 | != sizeof (symlength)) |
4002f18a | 899 | return (false); |
326e32d7 ILT |
900 | sym->symbol.the_bfd = abfd; |
901 | sym->symbol.name = bfd_alloc (abfd, symlength + 1); | |
902 | if (!sym->symbol.name) | |
9783e04a | 903 | { |
80425e6c | 904 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
905 | return false; |
906 | } | |
326e32d7 | 907 | if (bfd_read ((PTR) sym->symbol.name, symlength, 1, abfd) |
c3e964b9 | 908 | != symlength) |
4002f18a | 909 | return (false); |
cdbfad1c | 910 | /* Cast away const. */ |
326e32d7 | 911 | ((char *) (sym->symbol.name))[symlength] = '\0'; |
b6e7553c | 912 | if (bfd_read ((PTR) temp, sizeof (temp), 1, abfd) != sizeof (temp)) |
4002f18a | 913 | return (false); |
326e32d7 ILT |
914 | sym->symbol.flags = BSF_GLOBAL | BSF_EXPORT; |
915 | sym->symbol.value = get_word (abfd, temp); | |
cdbfad1c | 916 | if (set_public_section_func) |
c3e964b9 | 917 | { |
cdbfad1c ILT |
918 | /* Most backends can use the code below, but unfortunately |
919 | some use a different scheme. */ | |
920 | if ((*set_public_section_func) (abfd, sym) == false) | |
921 | return false; | |
c3e964b9 FF |
922 | } |
923 | else | |
924 | { | |
326e32d7 | 925 | if (sym->symbol.value & NLM_HIBIT) |
cdbfad1c | 926 | { |
326e32d7 ILT |
927 | sym->symbol.value &= ~NLM_HIBIT; |
928 | sym->symbol.flags |= BSF_FUNCTION; | |
929 | sym->symbol.section = | |
cdbfad1c ILT |
930 | bfd_get_section_by_name (abfd, NLM_CODE_NAME); |
931 | } | |
932 | else | |
933 | { | |
326e32d7 | 934 | sym->symbol.section = |
cdbfad1c ILT |
935 | bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_NAME); |
936 | } | |
c3e964b9 | 937 | } |
326e32d7 ILT |
938 | sym->rcnt = 0; |
939 | abfd->symcount++; | |
c3e964b9 FF |
940 | sym++; |
941 | } | |
942 | ||
45a78ebb ILT |
943 | /* Read the debugging records. */ |
944 | ||
326e32d7 | 945 | if (i_fxdhdrp->numberOfDebugRecords > 0) |
45a78ebb | 946 | { |
326e32d7 | 947 | if (bfd_seek (abfd, i_fxdhdrp->debugInfoOffset, SEEK_SET) == -1) |
4002f18a | 948 | return (false); |
45a78ebb | 949 | |
326e32d7 ILT |
950 | symcount += i_fxdhdrp->numberOfDebugRecords; |
951 | while (abfd->symcount < symcount) | |
45a78ebb | 952 | { |
326e32d7 | 953 | if ((bfd_read ((PTR) & symtype, sizeof (symtype), 1, abfd) |
45a78ebb | 954 | != sizeof (symtype)) |
326e32d7 ILT |
955 | || bfd_read ((PTR) temp, sizeof (temp), 1, abfd) != sizeof (temp) |
956 | || (bfd_read ((PTR) & symlength, sizeof (symlength), 1, abfd) | |
45a78ebb | 957 | != sizeof (symlength))) |
4002f18a | 958 | return false; |
326e32d7 ILT |
959 | sym->symbol.the_bfd = abfd; |
960 | sym->symbol.name = bfd_alloc (abfd, symlength + 1); | |
961 | if (!sym->symbol.name) | |
9783e04a | 962 | { |
80425e6c | 963 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
964 | return false; |
965 | } | |
326e32d7 | 966 | if (bfd_read ((PTR) sym->symbol.name, symlength, 1, abfd) |
45a78ebb | 967 | != symlength) |
4002f18a | 968 | return (false); |
cdbfad1c | 969 | /* Cast away const. */ |
326e32d7 ILT |
970 | ((char *) (sym->symbol.name))[symlength] = '\0'; |
971 | sym->symbol.flags = BSF_LOCAL; | |
972 | sym->symbol.value = get_word (abfd, temp); | |
45a78ebb ILT |
973 | if (symtype == 0) |
974 | { | |
326e32d7 | 975 | sym->symbol.section = |
45a78ebb ILT |
976 | bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_NAME); |
977 | } | |
978 | else if (symtype == 1) | |
979 | { | |
326e32d7 ILT |
980 | sym->symbol.flags |= BSF_FUNCTION; |
981 | sym->symbol.section = | |
45a78ebb ILT |
982 | bfd_get_section_by_name (abfd, NLM_CODE_NAME); |
983 | } | |
984 | else | |
985 | { | |
326e32d7 | 986 | sym->symbol.section = &bfd_abs_section; |
45a78ebb | 987 | } |
326e32d7 ILT |
988 | sym->rcnt = 0; |
989 | abfd->symcount++; | |
45a78ebb ILT |
990 | sym++; |
991 | } | |
992 | } | |
993 | ||
b6e7553c FF |
994 | /* Read in the import records. We can only do this if we know how |
995 | to read relocs for this target. */ | |
c3e964b9 | 996 | |
cdbfad1c ILT |
997 | read_import_func = nlm_read_import_func (abfd); |
998 | if (read_import_func != NULL) | |
c3e964b9 | 999 | { |
326e32d7 | 1000 | if (bfd_seek (abfd, i_fxdhdrp->externalReferencesOffset, SEEK_SET) |
b6e7553c | 1001 | == -1) |
4002f18a | 1002 | return (false); |
326e32d7 ILT |
1003 | |
1004 | symcount += i_fxdhdrp->numberOfExternalReferences; | |
1005 | while (abfd->symcount < symcount) | |
b6e7553c | 1006 | { |
cdbfad1c ILT |
1007 | if ((*read_import_func) (abfd, sym) == false) |
1008 | return false; | |
c3e964b9 | 1009 | sym++; |
cdbfad1c | 1010 | abfd->symcount++; |
c3e964b9 | 1011 | } |
c3e964b9 FF |
1012 | } |
1013 | ||
1014 | return (true); | |
1015 | } | |
b6e7553c FF |
1016 | \f |
1017 | /* Get the relocs for an NLM file. There are two types of relocs. | |
1018 | Imports are relocs against symbols defined in other NLM files. We | |
1019 | treat these as relocs against global symbols. Relocation fixups | |
1020 | are internal relocs. | |
1021 | ||
1022 | The actual format used to store the relocs is machine specific. */ | |
1023 | ||
1024 | /* Read in the relocation fixup information. This is stored in | |
1025 | nlm_relocation_fixups, an array of arelent structures, and | |
1026 | nlm_relocation_fixup_secs, an array of section pointers. The | |
1027 | section pointers are needed because the relocs are not sorted by | |
1028 | section. */ | |
1029 | ||
1030 | static boolean | |
1031 | nlm_slurp_reloc_fixups (abfd) | |
1032 | bfd *abfd; | |
1033 | { | |
1034 | boolean (*read_func) PARAMS ((bfd *, nlm_symbol_type *, asection **, | |
1035 | arelent *)); | |
1036 | bfd_size_type count; | |
1037 | arelent *rels; | |
1038 | asection **secs; | |
1039 | ||
1040 | if (nlm_relocation_fixups (abfd) != NULL) | |
1041 | return true; | |
1042 | read_func = nlm_read_reloc_func (abfd); | |
1043 | if (read_func == NULL) | |
1044 | return true; | |
1045 | ||
1046 | if (bfd_seek (abfd, nlm_fixed_header (abfd)->relocationFixupOffset, | |
1047 | SEEK_SET) != 0) | |
4002f18a | 1048 | return false; |
b6e7553c FF |
1049 | |
1050 | count = nlm_fixed_header (abfd)->numberOfRelocationFixups; | |
1051 | rels = (arelent *) bfd_alloc (abfd, count * sizeof (arelent)); | |
1052 | secs = (asection **) bfd_alloc (abfd, count * sizeof (asection *)); | |
1053 | if (rels == NULL || secs == NULL) | |
1054 | { | |
80425e6c | 1055 | bfd_set_error (bfd_error_no_memory); |
b6e7553c FF |
1056 | return false; |
1057 | } | |
1058 | nlm_relocation_fixups (abfd) = rels; | |
1059 | nlm_relocation_fixup_secs (abfd) = secs; | |
1060 | ||
1061 | /* We have to read piece by piece, because we don't know how large | |
1062 | the machine specific reloc information is. */ | |
1063 | while (count-- != 0) | |
1064 | { | |
1065 | if ((*read_func) (abfd, (nlm_symbol_type *) NULL, secs, rels) == false) | |
1066 | { | |
1067 | nlm_relocation_fixups (abfd) = NULL; | |
1068 | nlm_relocation_fixup_secs (abfd) = NULL; | |
1069 | return false; | |
1070 | } | |
1071 | ++secs; | |
1072 | ++rels; | |
1073 | } | |
1074 | ||
1075 | return true; | |
1076 | } | |
1077 | ||
1078 | /* Get the number of relocs. This really just returns an upper bound, | |
1079 | since it does not attempt to distinguish them based on the section. | |
1080 | That will be handled when they are actually read. */ | |
1081 | ||
326e32d7 | 1082 | long |
b6e7553c FF |
1083 | nlm_get_reloc_upper_bound (abfd, sec) |
1084 | bfd *abfd; | |
1085 | asection *sec; | |
1086 | { | |
1087 | nlm_symbol_type *syms; | |
1088 | bfd_size_type count; | |
1089 | unsigned int ret; | |
1090 | ||
1091 | /* If we don't know how to read relocs, just return 0. */ | |
1092 | if (nlm_read_reloc_func (abfd) == NULL) | |
326e32d7 | 1093 | return -1; |
b6e7553c FF |
1094 | /* Make sure we have either the code or the data section. */ |
1095 | if ((bfd_get_section_flags (abfd, sec) & (SEC_CODE | SEC_DATA)) == 0) | |
1096 | return 0; | |
1097 | ||
1098 | syms = nlm_get_symbols (abfd); | |
1099 | if (syms == NULL) | |
1100 | { | |
8b977377 | 1101 | if (nlm_slurp_symbol_table (abfd) == false) |
326e32d7 | 1102 | return -1; |
b6e7553c FF |
1103 | syms = nlm_get_symbols (abfd); |
1104 | } | |
1105 | ||
1106 | ret = nlm_fixed_header (abfd)->numberOfRelocationFixups; | |
1107 | ||
1108 | count = bfd_get_symcount (abfd); | |
1109 | while (count-- != 0) | |
1110 | { | |
1111 | ret += syms->rcnt; | |
1112 | ++syms; | |
1113 | } | |
1114 | ||
1115 | return (ret + 1) * sizeof (arelent *); | |
1116 | } | |
1117 | ||
1118 | /* Get the relocs themselves. */ | |
1119 | ||
326e32d7 | 1120 | long |
b6e7553c FF |
1121 | nlm_canonicalize_reloc (abfd, sec, relptr, symbols) |
1122 | bfd *abfd; | |
1123 | asection *sec; | |
1124 | arelent **relptr; | |
1125 | asymbol **symbols; | |
1126 | { | |
1127 | arelent *rels; | |
1128 | asection **secs; | |
1129 | bfd_size_type count, i; | |
1130 | unsigned int ret; | |
1131 | ||
1132 | /* Get the relocation fixups. */ | |
1133 | rels = nlm_relocation_fixups (abfd); | |
1134 | if (rels == NULL) | |
1135 | { | |
8b977377 | 1136 | if (nlm_slurp_reloc_fixups (abfd) == false) |
326e32d7 | 1137 | return -1; |
b6e7553c FF |
1138 | rels = nlm_relocation_fixups (abfd); |
1139 | if (rels == NULL) | |
326e32d7 | 1140 | return -1; |
b6e7553c FF |
1141 | } |
1142 | secs = nlm_relocation_fixup_secs (abfd); | |
1143 | ||
1144 | ret = 0; | |
1145 | count = nlm_fixed_header (abfd)->numberOfRelocationFixups; | |
1146 | for (i = 0; i < count; i++, rels++, secs++) | |
1147 | { | |
1148 | if (*secs == sec) | |
1149 | { | |
1150 | *relptr++ = rels; | |
1151 | ++ret; | |
1152 | } | |
1153 | } | |
1154 | ||
1155 | /* Get the import symbols. */ | |
1156 | count = bfd_get_symcount (abfd); | |
1157 | for (i = 0; i < count; i++, symbols++) | |
1158 | { | |
1159 | asymbol *sym; | |
1160 | ||
1161 | sym = *symbols; | |
1162 | if (bfd_asymbol_flavour (sym) == bfd_target_nlm_flavour) | |
1163 | { | |
1164 | nlm_symbol_type *nlm_sym; | |
1165 | bfd_size_type j; | |
1166 | ||
1167 | nlm_sym = (nlm_symbol_type *) sym; | |
1168 | for (j = 0; j < nlm_sym->rcnt; j++) | |
1169 | { | |
1170 | if (nlm_sym->relocs[j].section == sec) | |
1171 | { | |
1172 | *relptr = &nlm_sym->relocs[j].reloc; | |
1173 | (*relptr)->sym_ptr_ptr = symbols; | |
1174 | ++relptr; | |
1175 | ++ret; | |
1176 | } | |
1177 | } | |
1178 | } | |
1179 | } | |
1180 | ||
1181 | *relptr = NULL; | |
1182 | ||
326e32d7 | 1183 | return ret; |
b6e7553c FF |
1184 | } |
1185 | \f | |
1186 | /* Compute the section file positions for an NLM file. All variable | |
1187 | length data in the file headers must be set before this function is | |
1188 | called. If the variable length data is changed later, the | |
1189 | resulting object file will be incorrect. Unfortunately, there is | |
1190 | no way to check this. | |
1191 | ||
1192 | This routine also sets the Size and Offset fields in the fixed | |
7389debf ILT |
1193 | header. |
1194 | ||
1195 | It also looks over the symbols and moves any common symbols into | |
1196 | the .bss section; NLM has no way to represent a common symbol. | |
1197 | This approach means that either the symbols must already have been | |
1198 | set at this point, or there must be no common symbols. We need to | |
1199 | move the symbols at this point so that mangle_relocs can see the | |
1200 | final values. */ | |
b6e7553c FF |
1201 | |
1202 | static boolean | |
1203 | nlm_compute_section_file_positions (abfd) | |
1204 | bfd *abfd; | |
1205 | { | |
1206 | file_ptr sofar; | |
1207 | asection *sec; | |
1208 | bfd_vma text, data, bss; | |
1209 | bfd_vma text_low, data_low; | |
1210 | int text_align, data_align, other_align; | |
1211 | file_ptr text_ptr, data_ptr, other_ptr; | |
45a78ebb | 1212 | asection *bss_sec; |
7389debf | 1213 | asymbol **sym_ptr_ptr; |
b6e7553c FF |
1214 | |
1215 | if (abfd->output_has_begun == true) | |
1216 | return true; | |
1217 | ||
45a78ebb ILT |
1218 | /* Make sure we have a section to hold uninitialized data. */ |
1219 | bss_sec = bfd_get_section_by_name (abfd, NLM_UNINITIALIZED_DATA_NAME); | |
1220 | if (bss_sec == NULL) | |
1221 | { | |
326e32d7 ILT |
1222 | if (!add_bfd_section (abfd, NLM_UNINITIALIZED_DATA_NAME, |
1223 | (file_ptr) 0, (bfd_size_type) 0, | |
1224 | SEC_ALLOC)) | |
45a78ebb ILT |
1225 | return false; |
1226 | bss_sec = bfd_get_section_by_name (abfd, NLM_UNINITIALIZED_DATA_NAME); | |
1227 | } | |
1228 | ||
b6e7553c FF |
1229 | abfd->output_has_begun = true; |
1230 | ||
1231 | /* The fixed header. */ | |
cdbfad1c | 1232 | sofar = nlm_optional_prefix_size (abfd) + nlm_fixed_header_size (abfd); |
b6e7553c FF |
1233 | |
1234 | /* The variable header. */ | |
1235 | sofar += (sizeof (nlm_variable_header (abfd)->descriptionLength) | |
326e32d7 ILT |
1236 | + nlm_variable_header (abfd)->descriptionLength + 1 |
1237 | + NLM_TARGET_LONG_SIZE /* stackSize */ | |
1238 | + NLM_TARGET_LONG_SIZE /* reserved */ | |
1239 | + sizeof (nlm_variable_header (abfd)->oldThreadName) | |
1240 | + sizeof (nlm_variable_header (abfd)->screenNameLength) | |
1241 | + nlm_variable_header (abfd)->screenNameLength + 1 | |
1242 | + sizeof (nlm_variable_header (abfd)->threadNameLength) | |
1243 | + nlm_variable_header (abfd)->threadNameLength + 1); | |
b6e7553c FF |
1244 | |
1245 | /* The auxiliary headers. */ | |
1246 | if (find_nonzero ((PTR) nlm_version_header (abfd), | |
1247 | sizeof (Nlm_Internal_Version_Header))) | |
1248 | sofar += sizeof (Nlm_External_Version_Header); | |
1249 | if (find_nonzero ((PTR) nlm_extended_header (abfd), | |
1250 | sizeof (Nlm_Internal_Extended_Header))) | |
1251 | sofar += sizeof (Nlm_External_Extended_Header); | |
1252 | if (find_nonzero ((PTR) nlm_custom_header (abfd), | |
1253 | sizeof (Nlm_Internal_Custom_Header))) | |
1254 | sofar += sizeof (Nlm_External_Custom_Header); | |
1255 | if (find_nonzero ((PTR) nlm_copyright_header (abfd), | |
1256 | sizeof (Nlm_Internal_Copyright_Header))) | |
1257 | sofar += (sizeof (Nlm_External_Copyright_Header) | |
326e32d7 | 1258 | + nlm_copyright_header (abfd)->copyrightMessageLength + 1); |
b6e7553c FF |
1259 | |
1260 | /* Compute the section file positions in two passes. First get the | |
1261 | sizes of the text and data sections, and then set the file | |
1262 | positions. This code aligns the sections in the file using the | |
1263 | same alignment restrictions that apply to the sections in memory; | |
1264 | this may not be necessary. */ | |
1265 | text = 0; | |
326e32d7 | 1266 | text_low = (bfd_vma) - 1; |
b6e7553c FF |
1267 | text_align = 0; |
1268 | data = 0; | |
326e32d7 | 1269 | data_low = (bfd_vma) - 1; |
b6e7553c FF |
1270 | data_align = 0; |
1271 | bss = 0; | |
1272 | other_align = 0; | |
1273 | for (sec = abfd->sections; sec != (asection *) NULL; sec = sec->next) | |
1274 | { | |
1275 | flagword f; | |
1276 | ||
1277 | sec->_raw_size = BFD_ALIGN (sec->_raw_size, 1 << sec->alignment_power); | |
1278 | ||
1279 | f = bfd_get_section_flags (abfd, sec); | |
1280 | if (f & SEC_CODE) | |
1281 | { | |
1282 | text += sec->_raw_size; | |
1283 | if (bfd_get_section_vma (abfd, sec) < text_low) | |
1284 | text_low = bfd_get_section_vma (abfd, sec); | |
1285 | if (sec->alignment_power > text_align) | |
1286 | text_align = sec->alignment_power; | |
1287 | } | |
1288 | else if (f & SEC_DATA) | |
1289 | { | |
1290 | data += sec->_raw_size; | |
1291 | if (bfd_get_section_vma (abfd, sec) < data_low) | |
1292 | data_low = bfd_get_section_vma (abfd, sec); | |
1293 | if (sec->alignment_power > data_align) | |
1294 | data_align = sec->alignment_power; | |
1295 | } | |
1296 | else if (f & SEC_HAS_CONTENTS) | |
1297 | { | |
1298 | if (sec->alignment_power > other_align) | |
1299 | other_align = sec->alignment_power; | |
1300 | } | |
1301 | else if (f & SEC_ALLOC) | |
1302 | bss += sec->_raw_size; | |
1303 | } | |
1304 | ||
1305 | nlm_set_text_low (abfd, text_low); | |
1306 | nlm_set_data_low (abfd, data_low); | |
1307 | ||
9783e04a DM |
1308 | if (nlm_no_uninitialized_data (abfd)) |
1309 | { | |
1310 | /* This NetWare format does not use uninitialized data. We must | |
1311 | increase the size of the data section. We will never wind up | |
1312 | writing those file locations, so they will remain zero. */ | |
1313 | data += bss; | |
1314 | bss = 0; | |
1315 | } | |
1316 | ||
b6e7553c FF |
1317 | text_ptr = BFD_ALIGN (sofar, 1 << text_align); |
1318 | data_ptr = BFD_ALIGN (text_ptr + text, 1 << data_align); | |
1319 | other_ptr = BFD_ALIGN (data_ptr + data, 1 << other_align); | |
1320 | ||
1321 | /* Fill in some fields in the header for which we now have the | |
1322 | information. */ | |
1323 | nlm_fixed_header (abfd)->codeImageOffset = text_ptr; | |
1324 | nlm_fixed_header (abfd)->codeImageSize = text; | |
1325 | nlm_fixed_header (abfd)->dataImageOffset = data_ptr; | |
1326 | nlm_fixed_header (abfd)->dataImageSize = data; | |
1327 | nlm_fixed_header (abfd)->uninitializedDataSize = bss; | |
1328 | ||
1329 | for (sec = abfd->sections; sec != (asection *) NULL; sec = sec->next) | |
1330 | { | |
1331 | flagword f; | |
1332 | ||
1333 | f = bfd_get_section_flags (abfd, sec); | |
1334 | ||
1335 | if (f & SEC_CODE) | |
1336 | { | |
1337 | sec->filepos = text_ptr; | |
1338 | text_ptr += sec->_raw_size; | |
1339 | } | |
1340 | else if (f & SEC_DATA) | |
1341 | { | |
1342 | sec->filepos = data_ptr; | |
1343 | data_ptr += sec->_raw_size; | |
1344 | } | |
1345 | else if (f & SEC_HAS_CONTENTS) | |
1346 | { | |
1347 | sec->filepos = other_ptr; | |
1348 | other_ptr += sec->_raw_size; | |
1349 | } | |
1350 | } | |
1351 | ||
1352 | nlm_fixed_header (abfd)->relocationFixupOffset = other_ptr; | |
1353 | ||
7389debf ILT |
1354 | /* Move all common symbols into the .bss section. */ |
1355 | ||
1356 | sym_ptr_ptr = bfd_get_outsymbols (abfd); | |
1357 | if (sym_ptr_ptr != NULL) | |
1358 | { | |
1359 | asymbol **sym_end; | |
7389debf ILT |
1360 | bfd_vma add; |
1361 | ||
7389debf ILT |
1362 | sym_end = sym_ptr_ptr + bfd_get_symcount (abfd); |
1363 | add = 0; | |
1364 | for (; sym_ptr_ptr < sym_end; sym_ptr_ptr++) | |
1365 | { | |
1366 | asymbol *sym; | |
1367 | bfd_vma size; | |
1368 | ||
1369 | sym = *sym_ptr_ptr; | |
1370 | ||
326e32d7 | 1371 | if (!bfd_is_com_section (bfd_get_section (sym))) |
7389debf ILT |
1372 | continue; |
1373 | ||
1374 | /* Put the common symbol in the .bss section, and increase | |
1375 | the size of the .bss section by the size of the common | |
1376 | symbol (which is the old value of the symbol). */ | |
1377 | sym->section = bss_sec; | |
1378 | size = sym->value; | |
1379 | sym->value = bss_sec->_raw_size + add; | |
1380 | add += size; | |
1381 | add = BFD_ALIGN (add, 1 << bss_sec->alignment_power); | |
1382 | } | |
9783e04a DM |
1383 | if (add != 0) |
1384 | { | |
1385 | if (nlm_no_uninitialized_data (abfd)) | |
1386 | { | |
1387 | /* We could handle this case, but so far it hasn't been | |
1388 | necessary. */ | |
1389 | abort (); | |
1390 | } | |
1391 | nlm_fixed_header (abfd)->uninitializedDataSize += add; | |
1392 | bss_sec->_raw_size += add; | |
1393 | } | |
7389debf ILT |
1394 | } |
1395 | ||
b6e7553c FF |
1396 | return true; |
1397 | } | |
1398 | ||
1399 | /* Set the contents of a section. To do this we need to know where | |
1400 | the section is going to be located in the output file. That means | |
1401 | that the sizes of all the sections must be set, and all the | |
1402 | variable size header information must be known. */ | |
1403 | ||
1404 | boolean | |
1405 | nlm_set_section_contents (abfd, section, location, offset, count) | |
1406 | bfd *abfd; | |
1407 | asection *section; | |
1408 | PTR location; | |
1409 | file_ptr offset; | |
1410 | bfd_size_type count; | |
1411 | { | |
1412 | if (abfd->output_has_begun == false | |
1413 | && nlm_compute_section_file_positions (abfd) == false) | |
1414 | return false; | |
1415 | ||
1416 | if (count == 0) | |
1417 | return true; | |
1418 | ||
7389debf ILT |
1419 | /* i386 NetWare has a very restricted set of relocs. In order for |
1420 | objcopy to work, the NLM i386 backend needs a chance to rework | |
1421 | the section contents so that its set of relocs will work. If all | |
1422 | the relocs are already acceptable, this will not do anything. */ | |
1423 | if (section->reloc_count != 0) | |
1424 | { | |
45a78ebb ILT |
1425 | boolean (*mangle_relocs_func) PARAMS ((bfd *, asection *, PTR, |
1426 | bfd_vma, bfd_size_type)); | |
7389debf ILT |
1427 | |
1428 | mangle_relocs_func = nlm_mangle_relocs_func (abfd); | |
1429 | if (mangle_relocs_func != NULL) | |
1430 | { | |
326e32d7 ILT |
1431 | if (!(*mangle_relocs_func) (abfd, section, location, |
1432 | (bfd_vma) offset, count)) | |
7389debf ILT |
1433 | return false; |
1434 | } | |
1435 | } | |
1436 | ||
b6e7553c FF |
1437 | if (bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET) != 0 |
1438 | || bfd_write (location, 1, count, abfd) != count) | |
4002f18a | 1439 | return false; |
b6e7553c FF |
1440 | |
1441 | return true; | |
1442 | } | |
1443 | ||
1444 | /* We need to sort a list of relocs associated with sections when we | |
1445 | write out the external relocs. */ | |
1446 | ||
b6e7553c FF |
1447 | static int |
1448 | nlm_external_reloc_compare (p1, p2) | |
1449 | const void *p1; | |
1450 | const void *p2; | |
1451 | { | |
1452 | const struct reloc_and_sec *r1 = (const struct reloc_and_sec *) p1; | |
1453 | const struct reloc_and_sec *r2 = (const struct reloc_and_sec *) p2; | |
9783e04a | 1454 | int cmp; |
b6e7553c | 1455 | |
9783e04a DM |
1456 | cmp = strcmp ((*r1->rel->sym_ptr_ptr)->name, |
1457 | (*r2->rel->sym_ptr_ptr)->name); | |
1458 | if (cmp != 0) | |
1459 | return cmp; | |
1460 | ||
1461 | /* We sort by address within symbol to make the sort more stable and | |
1462 | increase the chances that different hosts will generate bit for | |
1463 | bit equivalent results. */ | |
1464 | return (int) (r1->rel->address - r2->rel->address); | |
b6e7553c FF |
1465 | } |
1466 | ||
1467 | /* Write out an NLM file. We write out the information in this order: | |
1468 | fixed header | |
1469 | variable header | |
1470 | auxiliary headers | |
1471 | code sections | |
1472 | data sections | |
1473 | other sections (custom data, messages, help, shared NLM, RPC, | |
1474 | module dependencies) | |
1475 | relocation fixups | |
1476 | external references (imports) | |
1477 | public symbols (exports) | |
1478 | debugging records | |
1479 | This is similar to the order used by the NetWare tools; the | |
1480 | difference is that NetWare puts the sections other than code, data | |
1481 | and custom data at the end of the NLM. It is convenient for us to | |
1482 | know where the sections are going to be before worrying about the | |
1483 | size of the other information. | |
1484 | ||
1485 | By the time this function is called, all the section data should | |
1486 | have been output using set_section_contents. Note that custom | |
1487 | data, the message file, the help file, the shared NLM file, the RPC | |
1488 | data, and the module dependencies are all considered to be | |
1489 | sections; the caller is responsible for filling in the offset and | |
1490 | length fields in the NLM headers. The relocation fixups and | |
1491 | imports are both obtained from the list of relocs attached to each | |
1492 | section. The exports and debugging records are obtained from the | |
1493 | list of outsymbols. */ | |
1494 | ||
1495 | boolean | |
1496 | nlm_write_object_contents (abfd) | |
1497 | bfd *abfd; | |
1498 | { | |
b6e7553c | 1499 | asection *sec; |
cdbfad1c | 1500 | boolean (*write_import_func) PARAMS ((bfd *, asection *, arelent *)); |
b6e7553c FF |
1501 | bfd_size_type external_reloc_count, internal_reloc_count, i, c; |
1502 | struct reloc_and_sec *external_relocs; | |
1503 | asymbol **sym_ptr_ptr; | |
45a78ebb | 1504 | file_ptr last; |
cdbfad1c | 1505 | boolean (*write_prefix_func) PARAMS ((bfd *)); |
80425e6c JK |
1506 | unsigned char *fixed_header = NULL; |
1507 | ||
1508 | fixed_header = (unsigned char *) malloc (nlm_fixed_header_size (abfd)); | |
1509 | if (fixed_header == NULL) | |
1510 | { | |
1511 | bfd_set_error (bfd_error_no_memory); | |
1512 | goto error_return; | |
1513 | } | |
b6e7553c FF |
1514 | |
1515 | if (abfd->output_has_begun == false | |
1516 | && nlm_compute_section_file_positions (abfd) == false) | |
80425e6c | 1517 | goto error_return; |
b6e7553c FF |
1518 | |
1519 | /* Write out the variable length headers. */ | |
cdbfad1c | 1520 | if (bfd_seek (abfd, |
326e32d7 | 1521 | nlm_optional_prefix_size (abfd) + nlm_fixed_header_size (abfd), |
cdbfad1c | 1522 | SEEK_SET) != 0) |
4002f18a | 1523 | goto error_return; |
b6e7553c FF |
1524 | if (nlm_swap_variable_header_out (abfd) == false |
1525 | || nlm_swap_auxiliary_headers_out (abfd) == false) | |
1526 | { | |
80425e6c JK |
1527 | bfd_set_error (bfd_error_system_call); |
1528 | goto error_return; | |
b6e7553c FF |
1529 | } |
1530 | ||
1531 | /* A weak check on whether the section file positions were | |
1532 | reasonable. */ | |
1533 | if (bfd_tell (abfd) > nlm_fixed_header (abfd)->codeImageOffset) | |
1534 | { | |
80425e6c JK |
1535 | bfd_set_error (bfd_error_invalid_operation); |
1536 | goto error_return; | |
b6e7553c FF |
1537 | } |
1538 | ||
1539 | /* Advance to the relocs. */ | |
1540 | if (bfd_seek (abfd, nlm_fixed_header (abfd)->relocationFixupOffset, | |
1541 | SEEK_SET) != 0) | |
4002f18a | 1542 | goto error_return; |
b6e7553c FF |
1543 | |
1544 | /* The format of the relocation entries is dependent upon the | |
1545 | particular target. We use an external routine to write the reloc | |
1546 | out. */ | |
cdbfad1c | 1547 | write_import_func = nlm_write_import_func (abfd); |
b6e7553c FF |
1548 | |
1549 | /* Write out the internal relocation fixups. While we're looping | |
1550 | over the relocs, we also count the external relocs, which is | |
1551 | needed when they are written out below. */ | |
1552 | internal_reloc_count = 0; | |
1553 | external_reloc_count = 0; | |
1554 | for (sec = abfd->sections; sec != (asection *) NULL; sec = sec->next) | |
1555 | { | |
1556 | arelent **rel_ptr_ptr, **rel_end; | |
1557 | ||
1558 | if (sec->reloc_count == 0) | |
1559 | continue; | |
1560 | ||
326e32d7 | 1561 | /* We can only represent relocs within a code or data |
cdbfad1c | 1562 | section. We ignore them for a debugging section. */ |
b6e7553c | 1563 | if ((bfd_get_section_flags (abfd, sec) & (SEC_CODE | SEC_DATA)) == 0) |
cdbfad1c | 1564 | continue; |
b6e7553c | 1565 | |
cdbfad1c ILT |
1566 | /* We need to know how to write out imports */ |
1567 | if (write_import_func == NULL) | |
b6e7553c | 1568 | { |
80425e6c JK |
1569 | bfd_set_error (bfd_error_invalid_operation); |
1570 | goto error_return; | |
b6e7553c FF |
1571 | } |
1572 | ||
1573 | rel_ptr_ptr = sec->orelocation; | |
1574 | rel_end = rel_ptr_ptr + sec->reloc_count; | |
1575 | for (; rel_ptr_ptr < rel_end; rel_ptr_ptr++) | |
1576 | { | |
1577 | arelent *rel; | |
1578 | asymbol *sym; | |
1579 | ||
1580 | rel = *rel_ptr_ptr; | |
1581 | sym = *rel->sym_ptr_ptr; | |
1582 | ||
7389debf | 1583 | if (bfd_get_section (sym) != &bfd_und_section) |
b6e7553c FF |
1584 | { |
1585 | ++internal_reloc_count; | |
cdbfad1c | 1586 | if ((*write_import_func) (abfd, sec, rel) == false) |
80425e6c | 1587 | goto error_return; |
b6e7553c FF |
1588 | } |
1589 | else | |
1590 | ++external_reloc_count; | |
1591 | } | |
1592 | } | |
1593 | nlm_fixed_header (abfd)->numberOfRelocationFixups = internal_reloc_count; | |
1594 | ||
1595 | /* Write out the imports (relocs against external symbols). These | |
1596 | are output as a symbol name followed by all the relocs for that | |
1597 | symbol, so we must first gather together all the relocs against | |
1598 | external symbols and sort them. */ | |
1599 | external_relocs = | |
1600 | (struct reloc_and_sec *) bfd_alloc (abfd, | |
1601 | (external_reloc_count | |
1602 | * sizeof (struct reloc_and_sec))); | |
1603 | if (external_relocs == (struct reloc_and_sec *) NULL) | |
1604 | { | |
80425e6c JK |
1605 | bfd_set_error (bfd_error_no_memory); |
1606 | goto error_return; | |
b6e7553c FF |
1607 | } |
1608 | i = 0; | |
1609 | for (sec = abfd->sections; sec != (asection *) NULL; sec = sec->next) | |
1610 | { | |
1611 | arelent **rel_ptr_ptr, **rel_end; | |
1612 | ||
1613 | if (sec->reloc_count == 0) | |
1614 | continue; | |
1615 | ||
1616 | rel_ptr_ptr = sec->orelocation; | |
1617 | rel_end = rel_ptr_ptr + sec->reloc_count; | |
1618 | for (; rel_ptr_ptr < rel_end; rel_ptr_ptr++) | |
1619 | { | |
1620 | arelent *rel; | |
1621 | asymbol *sym; | |
1622 | ||
1623 | rel = *rel_ptr_ptr; | |
1624 | sym = *rel->sym_ptr_ptr; | |
1625 | ||
7389debf | 1626 | if (bfd_get_section (sym) != &bfd_und_section) |
b6e7553c FF |
1627 | continue; |
1628 | ||
1629 | external_relocs[i].rel = rel; | |
1630 | external_relocs[i].sec = sec; | |
1631 | ++i; | |
1632 | } | |
1633 | } | |
1634 | ||
1635 | BFD_ASSERT (i == external_reloc_count); | |
1636 | ||
1637 | /* Sort the external relocs by name. */ | |
9783e04a | 1638 | qsort ((PTR) external_relocs, (size_t) external_reloc_count, |
b6e7553c FF |
1639 | sizeof (struct reloc_and_sec), nlm_external_reloc_compare); |
1640 | ||
1641 | /* Write out the external relocs. */ | |
1642 | nlm_fixed_header (abfd)->externalReferencesOffset = bfd_tell (abfd); | |
1643 | c = 0; | |
1644 | i = 0; | |
1645 | while (i < external_reloc_count) | |
1646 | { | |
1647 | arelent *rel; | |
1648 | asymbol *sym; | |
7389debf | 1649 | bfd_size_type j, cnt; |
b6e7553c FF |
1650 | |
1651 | ++c; | |
1652 | ||
1653 | rel = external_relocs[i].rel; | |
1654 | sym = *rel->sym_ptr_ptr; | |
1655 | ||
b6e7553c | 1656 | cnt = 0; |
7389debf ILT |
1657 | for (j = i; |
1658 | (j < external_reloc_count | |
1659 | && *external_relocs[j].rel->sym_ptr_ptr == sym); | |
1660 | j++) | |
b6e7553c FF |
1661 | ++cnt; |
1662 | ||
cdbfad1c ILT |
1663 | if ((*nlm_write_external_func (abfd)) (abfd, cnt, sym, |
1664 | &external_relocs[i]) | |
1665 | == false) | |
80425e6c | 1666 | goto error_return; |
b6e7553c | 1667 | |
cdbfad1c | 1668 | i += cnt; |
b6e7553c | 1669 | } |
cdbfad1c | 1670 | |
b6e7553c FF |
1671 | nlm_fixed_header (abfd)->numberOfExternalReferences = c; |
1672 | ||
1673 | /* Write out the public symbols (exports). */ | |
1674 | sym_ptr_ptr = bfd_get_outsymbols (abfd); | |
1675 | if (sym_ptr_ptr != (asymbol **) NULL) | |
1676 | { | |
cdbfad1c | 1677 | bfd_vma (*get_public_offset_func) PARAMS ((bfd *, asymbol *)); |
326e32d7 | 1678 | boolean (*write_export_func) PARAMS ((bfd *, asymbol *, bfd_vma)); |
9783e04a | 1679 | |
b6e7553c FF |
1680 | asymbol **sym_end; |
1681 | ||
1682 | nlm_fixed_header (abfd)->publicsOffset = bfd_tell (abfd); | |
cdbfad1c | 1683 | get_public_offset_func = nlm_get_public_offset_func (abfd); |
9783e04a | 1684 | write_export_func = nlm_write_export_func (abfd); |
b6e7553c FF |
1685 | c = 0; |
1686 | sym_end = sym_ptr_ptr + bfd_get_symcount (abfd); | |
1687 | for (; sym_ptr_ptr < sym_end; sym_ptr_ptr++) | |
1688 | { | |
1689 | asymbol *sym; | |
1690 | bfd_byte len; | |
1691 | bfd_vma offset; | |
b6e7553c FF |
1692 | bfd_byte temp[NLM_TARGET_LONG_SIZE]; |
1693 | ||
1694 | sym = *sym_ptr_ptr; | |
1695 | ||
7389debf ILT |
1696 | if ((sym->flags & (BSF_EXPORT | BSF_GLOBAL)) == 0 |
1697 | || bfd_get_section (sym) == &bfd_und_section) | |
b6e7553c FF |
1698 | continue; |
1699 | ||
1700 | ++c; | |
c3e964b9 | 1701 | |
cdbfad1c | 1702 | if (get_public_offset_func) |
b6e7553c | 1703 | { |
cdbfad1c ILT |
1704 | /* Most backends can use the code below, but |
1705 | unfortunately some use a different scheme. */ | |
1706 | offset = (*get_public_offset_func) (abfd, sym); | |
b6e7553c FF |
1707 | } |
1708 | else | |
1709 | { | |
cdbfad1c ILT |
1710 | offset = bfd_asymbol_value (sym); |
1711 | sec = sym->section; | |
1712 | if (sec->flags & SEC_CODE) | |
1713 | { | |
1714 | offset -= nlm_get_text_low (abfd); | |
1715 | offset |= NLM_HIBIT; | |
1716 | } | |
1717 | else if (sec->flags & (SEC_DATA | SEC_ALLOC)) | |
1718 | { | |
1719 | /* SEC_ALLOC is for the .bss section. */ | |
1720 | offset -= nlm_get_data_low (abfd); | |
1721 | } | |
1722 | else | |
1723 | { | |
1724 | /* We can't handle an exported symbol that is not in | |
1725 | the code or data segment. */ | |
80425e6c JK |
1726 | bfd_set_error (bfd_error_invalid_operation); |
1727 | goto error_return; | |
cdbfad1c | 1728 | } |
b6e7553c FF |
1729 | } |
1730 | ||
9783e04a | 1731 | if (write_export_func) |
b6e7553c | 1732 | { |
9783e04a | 1733 | if ((*write_export_func) (abfd, sym, offset) == false) |
80425e6c | 1734 | goto error_return; |
b6e7553c | 1735 | } |
9783e04a DM |
1736 | else |
1737 | { | |
1738 | len = strlen (sym->name); | |
1739 | if ((bfd_write (&len, sizeof (bfd_byte), 1, abfd) | |
1740 | != sizeof (bfd_byte)) | |
1741 | || bfd_write (sym->name, len, 1, abfd) != len) | |
4002f18a | 1742 | goto error_return; |
326e32d7 | 1743 | |
9783e04a DM |
1744 | put_word (abfd, offset, temp); |
1745 | if (bfd_write (temp, sizeof (temp), 1, abfd) != sizeof (temp)) | |
4002f18a | 1746 | goto error_return; |
326e32d7 | 1747 | } |
9783e04a | 1748 | } |
b6e7553c FF |
1749 | nlm_fixed_header (abfd)->numberOfPublics = c; |
1750 | ||
45a78ebb ILT |
1751 | /* Write out the debugging records. The NLM conversion program |
1752 | wants to be able to inhibit this, so as a special hack if | |
1753 | debugInfoOffset is set to -1 we don't write any debugging | |
1754 | information. This can not be handled by fiddling with the | |
1755 | symbol table, because exported symbols appear in both the | |
1756 | exported symbol list and the debugging information. */ | |
326e32d7 | 1757 | if (nlm_fixed_header (abfd)->debugInfoOffset == (file_ptr) - 1) |
b6e7553c | 1758 | { |
45a78ebb ILT |
1759 | nlm_fixed_header (abfd)->debugInfoOffset = 0; |
1760 | nlm_fixed_header (abfd)->numberOfDebugRecords = 0; | |
1761 | } | |
1762 | else | |
1763 | { | |
1764 | nlm_fixed_header (abfd)->debugInfoOffset = bfd_tell (abfd); | |
1765 | c = 0; | |
1766 | sym_ptr_ptr = bfd_get_outsymbols (abfd); | |
1767 | sym_end = sym_ptr_ptr + bfd_get_symcount (abfd); | |
1768 | for (; sym_ptr_ptr < sym_end; sym_ptr_ptr++) | |
b6e7553c | 1769 | { |
45a78ebb ILT |
1770 | asymbol *sym; |
1771 | bfd_byte type, len; | |
1772 | bfd_vma offset; | |
1773 | bfd_byte temp[NLM_TARGET_LONG_SIZE]; | |
1774 | ||
1775 | sym = *sym_ptr_ptr; | |
1776 | ||
1777 | /* The NLM notion of a debugging symbol is actually what | |
1778 | BFD calls a local or global symbol. What BFD calls a | |
1779 | debugging symbol NLM does not understand at all. */ | |
1780 | if ((sym->flags & (BSF_LOCAL | BSF_GLOBAL | BSF_EXPORT)) == 0 | |
1781 | || (sym->flags & BSF_DEBUGGING) != 0 | |
1782 | || bfd_get_section (sym) == &bfd_und_section) | |
1783 | continue; | |
1784 | ||
1785 | ++c; | |
1786 | ||
9783e04a | 1787 | offset = bfd_asymbol_value (sym); |
45a78ebb ILT |
1788 | sec = sym->section; |
1789 | if (sec->flags & SEC_CODE) | |
1790 | { | |
9783e04a DM |
1791 | offset -= nlm_get_text_low (abfd); |
1792 | type = 1; | |
1793 | } | |
1794 | else if (sec->flags & (SEC_DATA | SEC_ALLOC)) | |
1795 | { | |
1796 | /* SEC_ALLOC is for the .bss section. */ | |
1797 | offset -= nlm_get_data_low (abfd); | |
45a78ebb ILT |
1798 | type = 0; |
1799 | } | |
1800 | else | |
1801 | type = 2; | |
b6e7553c | 1802 | |
45a78ebb ILT |
1803 | /* The type is 0 for data, 1 for code, 2 for absolute. */ |
1804 | if (bfd_write (&type, sizeof (bfd_byte), 1, abfd) | |
1805 | != sizeof (bfd_byte)) | |
4002f18a | 1806 | goto error_return; |
b6e7553c | 1807 | |
45a78ebb ILT |
1808 | put_word (abfd, offset, temp); |
1809 | if (bfd_write (temp, sizeof (temp), 1, abfd) != sizeof (temp)) | |
4002f18a | 1810 | goto error_return; |
b6e7553c | 1811 | |
45a78ebb ILT |
1812 | len = strlen (sym->name); |
1813 | if ((bfd_write (&len, sizeof (bfd_byte), 1, abfd) | |
1814 | != sizeof (bfd_byte)) | |
1815 | || bfd_write (sym->name, len, 1, abfd) != len) | |
4002f18a | 1816 | goto error_return; |
326e32d7 | 1817 | } |
45a78ebb ILT |
1818 | nlm_fixed_header (abfd)->numberOfDebugRecords = c; |
1819 | } | |
b6e7553c FF |
1820 | } |
1821 | ||
45a78ebb ILT |
1822 | /* NLMLINK fills in offset values even if there is no data, so we do |
1823 | the same. */ | |
1824 | last = bfd_tell (abfd); | |
1825 | if (nlm_fixed_header (abfd)->codeImageOffset == 0) | |
1826 | nlm_fixed_header (abfd)->codeImageOffset = last; | |
1827 | if (nlm_fixed_header (abfd)->dataImageOffset == 0) | |
1828 | nlm_fixed_header (abfd)->dataImageOffset = last; | |
1829 | if (nlm_fixed_header (abfd)->customDataOffset == 0) | |
1830 | nlm_fixed_header (abfd)->customDataOffset = last; | |
1831 | if (nlm_fixed_header (abfd)->moduleDependencyOffset == 0) | |
1832 | nlm_fixed_header (abfd)->moduleDependencyOffset = last; | |
1833 | if (nlm_fixed_header (abfd)->relocationFixupOffset == 0) | |
1834 | nlm_fixed_header (abfd)->relocationFixupOffset = last; | |
1835 | if (nlm_fixed_header (abfd)->externalReferencesOffset == 0) | |
1836 | nlm_fixed_header (abfd)->externalReferencesOffset = last; | |
1837 | if (nlm_fixed_header (abfd)->publicsOffset == 0) | |
1838 | nlm_fixed_header (abfd)->publicsOffset = last; | |
1839 | if (nlm_fixed_header (abfd)->debugInfoOffset == 0) | |
1840 | nlm_fixed_header (abfd)->debugInfoOffset = last; | |
1841 | ||
b6e7553c FF |
1842 | /* At this point everything has been written out except the fixed |
1843 | header. */ | |
cdbfad1c | 1844 | memcpy (nlm_fixed_header (abfd)->signature, nlm_signature (abfd), |
b6e7553c FF |
1845 | NLM_SIGNATURE_SIZE); |
1846 | nlm_fixed_header (abfd)->version = NLM_HEADER_VERSION; | |
1847 | nlm_fixed_header (abfd)->codeStartOffset = | |
45a78ebb ILT |
1848 | (bfd_get_start_address (abfd) |
1849 | - nlm_get_text_low (abfd)); | |
b6e7553c FF |
1850 | |
1851 | /* We have no convenient way for the caller to pass in the exit | |
1852 | procedure or the check unload procedure, so the caller must set | |
1853 | the values in the header to the values of the symbols. */ | |
45a78ebb | 1854 | nlm_fixed_header (abfd)->exitProcedureOffset -= nlm_get_text_low (abfd); |
b6e7553c FF |
1855 | if (nlm_fixed_header (abfd)->checkUnloadProcedureOffset != 0) |
1856 | nlm_fixed_header (abfd)->checkUnloadProcedureOffset -= | |
1857 | nlm_get_text_low (abfd); | |
1858 | ||
cdbfad1c | 1859 | if (bfd_seek (abfd, 0, SEEK_SET) != 0) |
80425e6c | 1860 | goto error_return; |
326e32d7 | 1861 | |
cdbfad1c ILT |
1862 | write_prefix_func = nlm_write_prefix_func (abfd); |
1863 | if (write_prefix_func) | |
1864 | { | |
1865 | if ((*write_prefix_func) (abfd) == false) | |
80425e6c | 1866 | goto error_return; |
cdbfad1c ILT |
1867 | } |
1868 | ||
1869 | BFD_ASSERT (bfd_tell (abfd) == nlm_optional_prefix_size (abfd)); | |
1870 | ||
1871 | nlm_swap_fixed_header_out (abfd, nlm_fixed_header (abfd), fixed_header); | |
1872 | if (bfd_write (fixed_header, nlm_fixed_header_size (abfd), 1, abfd) | |
1873 | != nlm_fixed_header_size (abfd)) | |
4002f18a | 1874 | goto error_return; |
b6e7553c | 1875 | |
80425e6c JK |
1876 | if (fixed_header != NULL) |
1877 | free (fixed_header); | |
b6e7553c | 1878 | return true; |
80425e6c | 1879 | |
326e32d7 | 1880 | error_return: |
80425e6c JK |
1881 | if (fixed_header != NULL) |
1882 | free (fixed_header); | |
1883 | return false; | |
b6e7553c | 1884 | } |