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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 FF |
53 | |
54 | /* Forward declarations of static functions */ | |
55 | ||
56 | static boolean add_bfd_section | |
57 | PARAMS ((bfd *, char *, file_ptr, bfd_size_type, flagword)); | |
c3e964b9 FF |
58 | static void nlm_swap_fixed_header_in |
59 | PARAMS ((bfd *, Nlm_External_Fixed_Header *, Nlm_Internal_Fixed_Header *)); | |
b6e7553c FF |
60 | static void nlm_swap_fixed_header_out |
61 | PARAMS ((bfd *, Nlm_Internal_Fixed_Header *, Nlm_External_Fixed_Header *)); | |
62 | static boolean nlm_swap_variable_header_in | |
63 | PARAMS ((bfd *)); | |
64 | static boolean nlm_swap_variable_header_out | |
65 | PARAMS ((bfd *)); | |
66 | static boolean find_nonzero | |
67 | PARAMS ((PTR, size_t)); | |
68 | static boolean nlm_swap_auxiliary_headers_in | |
69 | PARAMS ((bfd *)); | |
70 | static boolean nlm_swap_auxiliary_headers_out | |
71 | PARAMS ((bfd *)); | |
72 | static boolean nlm_slurp_symbol_table | |
73 | PARAMS ((bfd *)); | |
74 | static boolean nlm_slurp_reloc_fixups | |
75 | PARAMS ((bfd *)); | |
76 | static boolean nlm_compute_section_file_positions | |
77 | PARAMS ((bfd *)); | |
78 | static int nlm_external_reloc_compare | |
79 | PARAMS ((const void *, const void *)); | |
c3e964b9 FF |
80 | |
81 | /* Should perhaps use put_offset, put_word, etc. For now, the two versions | |
82 | can be handled by explicitly specifying 32 bits or "the long type". */ | |
83 | #if ARCH_SIZE == 64 | |
84 | #define put_word bfd_h_put_64 | |
85 | #define get_word bfd_h_get_64 | |
86 | #endif | |
87 | #if ARCH_SIZE == 32 | |
88 | #define put_word bfd_h_put_32 | |
89 | #define get_word bfd_h_get_32 | |
90 | #endif | |
91 | ||
92 | bfd_target * | |
93 | DEFUN (nlm_object_p, (abfd), bfd * abfd) | |
94 | { | |
95 | Nlm_External_Fixed_Header x_fxdhdr; /* Nlm file header, external form */ | |
96 | Nlm_Internal_Fixed_Header *i_fxdhdrp; /* Nlm file header, internal form */ | |
b6e7553c | 97 | enum bfd_architecture arch; |
c3e964b9 FF |
98 | |
99 | /* Read in the fixed length portion of the NLM header in external format. */ | |
100 | ||
101 | if (bfd_read ((PTR) &x_fxdhdr, sizeof (x_fxdhdr), 1, abfd) != | |
102 | sizeof (x_fxdhdr)) | |
103 | { | |
104 | bfd_error = system_call_error; | |
105 | return (NULL); | |
106 | } | |
107 | ||
108 | /* Check to see if we have an NLM file by matching the NLM signature. */ | |
109 | ||
f03b1f0d | 110 | if (strncmp (x_fxdhdr.signature, NLM_SIGNATURE, NLM_SIGNATURE_SIZE) != 0) |
c3e964b9 | 111 | { |
c3e964b9 FF |
112 | bfd_error = wrong_format; |
113 | return (NULL); | |
114 | } | |
115 | ||
116 | /* There's no supported way to discover the endianess of an NLM, so test for | |
117 | a sane version number after doing byte swapping appropriate for this | |
118 | XVEC. (Hack alert!) */ | |
119 | ||
f03b1f0d | 120 | if (get_word (abfd, (bfd_byte *) x_fxdhdr.version) > 0xFFFF) |
c3e964b9 | 121 | { |
45a78ebb ILT |
122 | bfd_error = wrong_format; |
123 | return (NULL); | |
c3e964b9 FF |
124 | } |
125 | ||
126 | /* There's no supported way to check for 32 bit versus 64 bit addresses, | |
127 | so ignore this distinction for now. (FIXME) */ | |
128 | ||
129 | /* Allocate an instance of the nlm_obj_tdata structure and hook it up to | |
45a78ebb ILT |
130 | the tdata pointer in the bfd. |
131 | FIXME: If we later decide this isn't the right format and the bfd | |
132 | already had valid tdata, we've just blown away the tdata we wanted | |
133 | to save for the right format. */ | |
c3e964b9 FF |
134 | |
135 | nlm_tdata (abfd) = (struct nlm_obj_tdata *) | |
136 | bfd_zalloc (abfd, sizeof (struct nlm_obj_tdata)); | |
137 | if (nlm_tdata (abfd) == NULL) | |
138 | { | |
139 | bfd_error = no_memory; | |
140 | return (NULL); | |
141 | } | |
142 | ||
45a78ebb ILT |
143 | /* FIXME: Any return(NULL) exits below here will leak memory (tdata). |
144 | And a memory leak also means we lost the real tdata info we wanted | |
145 | to save, because it was in the leaked memory. */ | |
c3e964b9 FF |
146 | |
147 | /* Swap in the rest of the fixed length header. */ | |
148 | ||
149 | i_fxdhdrp = nlm_fixed_header (abfd); | |
150 | nlm_swap_fixed_header_in (abfd, &x_fxdhdr, i_fxdhdrp); | |
151 | ||
152 | if (!nlm_swap_variable_header_in (abfd) | |
153 | || !nlm_swap_auxiliary_headers_in (abfd) | |
154 | || !add_bfd_section (abfd, NLM_CODE_NAME, | |
155 | i_fxdhdrp -> codeImageOffset, | |
156 | i_fxdhdrp -> codeImageSize, | |
b6e7553c FF |
157 | (SEC_CODE | SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS |
158 | | SEC_RELOC)) | |
c3e964b9 FF |
159 | || !add_bfd_section (abfd, NLM_INITIALIZED_DATA_NAME, |
160 | i_fxdhdrp -> dataImageOffset, | |
161 | i_fxdhdrp -> dataImageSize, | |
b6e7553c FF |
162 | (SEC_DATA | SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS |
163 | | SEC_RELOC)) | |
c3e964b9 FF |
164 | || !add_bfd_section (abfd, NLM_UNINITIALIZED_DATA_NAME, |
165 | (file_ptr) 0, | |
166 | i_fxdhdrp -> uninitializedDataSize, | |
b6e7553c | 167 | SEC_ALLOC)) |
c3e964b9 | 168 | { |
45a78ebb | 169 | bfd_error = wrong_format; |
c3e964b9 FF |
170 | return (NULL); |
171 | } | |
172 | ||
b6e7553c FF |
173 | if (nlm_fixed_header (abfd)->numberOfRelocationFixups != 0 |
174 | || nlm_fixed_header (abfd)->numberOfExternalReferences != 0) | |
175 | abfd->flags |= HAS_RELOC; | |
176 | if (nlm_fixed_header (abfd)->numberOfPublics != 0 | |
45a78ebb ILT |
177 | || nlm_fixed_header (abfd)->numberOfDebugRecords != 0 |
178 | || nlm_fixed_header (abfd)->numberOfExternalReferences != 0) | |
b6e7553c FF |
179 | abfd->flags |= HAS_SYMS; |
180 | ||
181 | arch = nlm_architecture (abfd); | |
182 | if (arch != bfd_arch_unknown) | |
183 | bfd_default_set_arch_mach (abfd, arch, (unsigned long) 0); | |
184 | ||
c3e964b9 FF |
185 | return (abfd -> xvec); |
186 | } | |
187 | ||
188 | /* Add a section to the bfd. */ | |
189 | ||
190 | static boolean | |
191 | DEFUN (add_bfd_section, (abfd, name, offset, size, flags), | |
192 | bfd *abfd AND | |
193 | char *name AND | |
194 | file_ptr offset AND | |
195 | bfd_size_type size AND | |
196 | flagword flags) | |
197 | { | |
198 | asection *newsect; | |
199 | ||
200 | newsect = bfd_make_section (abfd, name); | |
201 | if (newsect == NULL) | |
202 | { | |
203 | return (false); | |
204 | } | |
205 | newsect -> vma = 0; /* NLM's are relocatable. */ | |
206 | newsect -> _raw_size = size; | |
207 | newsect -> filepos = offset; | |
208 | newsect -> flags = flags; | |
209 | newsect -> alignment_power = bfd_log2 (0); /* FIXME */ | |
210 | return (true); | |
211 | } | |
212 | ||
c3e964b9 FF |
213 | /* Translate an NLM fixed length file header in external format into an NLM |
214 | file header in internal format. */ | |
215 | ||
216 | static void | |
217 | DEFUN (nlm_swap_fixed_header_in, (abfd, src, dst), | |
218 | bfd * abfd AND | |
219 | Nlm_External_Fixed_Header * src AND | |
220 | Nlm_Internal_Fixed_Header * dst) | |
221 | { | |
222 | memcpy (dst -> signature, src -> signature, NLM_SIGNATURE_SIZE); | |
223 | memcpy (dst -> moduleName, src -> moduleName, NLM_MODULE_NAME_SIZE); | |
224 | dst -> version = | |
225 | get_word (abfd, (bfd_byte *) src -> version); | |
226 | dst -> codeImageOffset = | |
227 | get_word (abfd, (bfd_byte *) src -> codeImageOffset); | |
228 | dst -> codeImageSize = | |
229 | get_word (abfd, (bfd_byte *) src -> codeImageSize); | |
230 | dst -> dataImageOffset = | |
231 | get_word (abfd, (bfd_byte *) src -> dataImageOffset); | |
232 | dst -> dataImageSize = | |
233 | get_word (abfd, (bfd_byte *) src -> dataImageSize); | |
234 | dst -> uninitializedDataSize = | |
235 | get_word (abfd, (bfd_byte *) src -> uninitializedDataSize); | |
236 | dst -> customDataOffset = | |
237 | get_word (abfd, (bfd_byte *) src -> customDataOffset); | |
238 | dst -> customDataSize = | |
239 | get_word (abfd, (bfd_byte *) src -> customDataSize); | |
240 | dst -> moduleDependencyOffset = | |
241 | get_word (abfd, (bfd_byte *) src -> moduleDependencyOffset); | |
242 | dst -> numberOfModuleDependencies = | |
243 | get_word (abfd, (bfd_byte *) src -> numberOfModuleDependencies); | |
244 | dst -> relocationFixupOffset = | |
245 | get_word (abfd, (bfd_byte *) src -> relocationFixupOffset); | |
246 | dst -> numberOfRelocationFixups = | |
247 | get_word (abfd, (bfd_byte *) src -> numberOfRelocationFixups); | |
248 | dst -> externalReferencesOffset = | |
249 | get_word (abfd, (bfd_byte *) src -> externalReferencesOffset); | |
250 | dst -> numberOfExternalReferences = | |
251 | get_word (abfd, (bfd_byte *) src -> numberOfExternalReferences); | |
252 | dst -> publicsOffset = | |
253 | get_word (abfd, (bfd_byte *) src -> publicsOffset); | |
254 | dst -> numberOfPublics = | |
255 | get_word (abfd, (bfd_byte *) src -> numberOfPublics); | |
256 | dst -> debugInfoOffset = | |
257 | get_word (abfd, (bfd_byte *) src -> debugInfoOffset); | |
258 | dst -> numberOfDebugRecords = | |
259 | get_word (abfd, (bfd_byte *) src -> numberOfDebugRecords); | |
260 | dst -> codeStartOffset = | |
261 | get_word (abfd, (bfd_byte *) src -> codeStartOffset); | |
262 | dst -> exitProcedureOffset = | |
263 | get_word (abfd, (bfd_byte *) src -> exitProcedureOffset); | |
264 | dst -> checkUnloadProcedureOffset = | |
265 | get_word (abfd, (bfd_byte *) src -> checkUnloadProcedureOffset); | |
266 | dst -> moduleType = | |
267 | get_word (abfd, (bfd_byte *) src -> moduleType); | |
268 | dst -> flags = | |
269 | get_word (abfd, (bfd_byte *) src -> flags); | |
270 | } | |
271 | ||
b6e7553c FF |
272 | /* Translate an NLM fixed length file header in internal format into |
273 | an NLM file header in external format. */ | |
274 | ||
275 | static void | |
276 | DEFUN (nlm_swap_fixed_header_out, (abfd, src, dst), | |
277 | bfd * abfd AND | |
278 | Nlm_Internal_Fixed_Header * src AND | |
279 | Nlm_External_Fixed_Header * dst) | |
280 | { | |
281 | memcpy (dst -> signature, src -> signature, NLM_SIGNATURE_SIZE); | |
282 | memcpy (dst -> moduleName, src -> moduleName, NLM_MODULE_NAME_SIZE); | |
283 | put_word (abfd, (bfd_vma) src -> version, | |
284 | (bfd_byte *) dst -> version); | |
285 | put_word (abfd, (bfd_vma) src -> codeImageOffset, | |
286 | (bfd_byte *) dst -> codeImageOffset); | |
287 | put_word (abfd, (bfd_vma) src -> codeImageSize, | |
288 | (bfd_byte *) dst -> codeImageSize); | |
289 | put_word (abfd, (bfd_vma) src -> dataImageOffset, | |
290 | (bfd_byte *) dst -> dataImageOffset); | |
291 | put_word (abfd, (bfd_vma) src -> dataImageSize, | |
292 | (bfd_byte *) dst -> dataImageSize); | |
293 | put_word (abfd, (bfd_vma) src -> uninitializedDataSize, | |
294 | (bfd_byte *) dst -> uninitializedDataSize); | |
295 | put_word (abfd, (bfd_vma) src -> customDataOffset, | |
296 | (bfd_byte *) dst -> customDataOffset); | |
297 | put_word (abfd, (bfd_vma) src -> customDataSize, | |
298 | (bfd_byte *) dst -> customDataSize); | |
299 | put_word (abfd, (bfd_vma) src -> moduleDependencyOffset, | |
300 | (bfd_byte *) dst -> moduleDependencyOffset); | |
301 | put_word (abfd, (bfd_vma) src -> numberOfModuleDependencies, | |
302 | (bfd_byte *) dst -> numberOfModuleDependencies); | |
303 | put_word (abfd, (bfd_vma) src -> relocationFixupOffset, | |
304 | (bfd_byte *) dst -> relocationFixupOffset); | |
305 | put_word (abfd, (bfd_vma) src -> numberOfRelocationFixups, | |
306 | (bfd_byte *) dst -> numberOfRelocationFixups); | |
307 | put_word (abfd, (bfd_vma) src -> externalReferencesOffset, | |
308 | (bfd_byte *) dst -> externalReferencesOffset); | |
309 | put_word (abfd, (bfd_vma) src -> numberOfExternalReferences, | |
310 | (bfd_byte *) dst -> numberOfExternalReferences); | |
311 | put_word (abfd, (bfd_vma) src -> publicsOffset, | |
312 | (bfd_byte *) dst -> publicsOffset); | |
313 | put_word (abfd, (bfd_vma) src -> numberOfPublics, | |
314 | (bfd_byte *) dst -> numberOfPublics); | |
315 | put_word (abfd, (bfd_vma) src -> debugInfoOffset, | |
316 | (bfd_byte *) dst -> debugInfoOffset); | |
317 | put_word (abfd, (bfd_vma) src -> numberOfDebugRecords, | |
318 | (bfd_byte *) dst -> numberOfDebugRecords); | |
319 | put_word (abfd, (bfd_vma) src -> codeStartOffset, | |
320 | (bfd_byte *) dst -> codeStartOffset); | |
321 | put_word (abfd, (bfd_vma) src -> exitProcedureOffset, | |
322 | (bfd_byte *) dst -> exitProcedureOffset); | |
323 | put_word (abfd, (bfd_vma) src -> checkUnloadProcedureOffset, | |
324 | (bfd_byte *) dst -> checkUnloadProcedureOffset); | |
325 | put_word (abfd, (bfd_vma) src -> moduleType, | |
326 | (bfd_byte *) dst -> moduleType); | |
327 | put_word (abfd, (bfd_vma) src -> flags, | |
328 | (bfd_byte *) dst -> flags); | |
329 | } | |
330 | ||
c3e964b9 FF |
331 | /* Read and swap in the variable length header. All the fields must |
332 | exist in the NLM, and must exist in the order they are read here. */ | |
333 | ||
334 | static boolean | |
335 | DEFUN (nlm_swap_variable_header_in, (abfd), | |
336 | bfd * abfd) | |
337 | { | |
b6e7553c | 338 | unsigned char temp [NLM_TARGET_LONG_SIZE]; |
c3e964b9 FF |
339 | |
340 | /* Read the description length and text members. */ | |
341 | ||
342 | if (bfd_read ((PTR) &nlm_variable_header (abfd) -> descriptionLength, | |
343 | sizeof (nlm_variable_header (abfd) -> descriptionLength), | |
344 | 1, abfd) != | |
345 | sizeof (nlm_variable_header (abfd) -> descriptionLength)) | |
346 | { | |
347 | bfd_error = system_call_error; | |
348 | return (false); | |
349 | } | |
350 | if (bfd_read ((PTR) nlm_variable_header (abfd) -> descriptionText, | |
351 | nlm_variable_header (abfd) -> descriptionLength + 1, | |
352 | 1, abfd) != | |
353 | nlm_variable_header (abfd) -> descriptionLength + 1) | |
354 | { | |
355 | bfd_error = system_call_error; | |
356 | return (false); | |
357 | } | |
358 | ||
359 | /* Read and convert the stackSize field. */ | |
360 | ||
f03b1f0d | 361 | if (bfd_read ((PTR) temp, sizeof (temp), 1, abfd) != sizeof (temp)) |
c3e964b9 FF |
362 | { |
363 | bfd_error = system_call_error; | |
364 | return (false); | |
365 | } | |
366 | nlm_variable_header (abfd) -> stackSize = get_word (abfd, (bfd_byte *) temp); | |
367 | ||
368 | /* Read and convert the reserved field. */ | |
369 | ||
f03b1f0d | 370 | if (bfd_read ((PTR) temp, sizeof (temp), 1, abfd) != sizeof (temp)) |
c3e964b9 FF |
371 | { |
372 | bfd_error = system_call_error; | |
373 | return (false); | |
374 | } | |
375 | nlm_variable_header (abfd) -> reserved = get_word (abfd, (bfd_byte *) temp); | |
376 | ||
377 | /* Read the oldThreadName field. This field is a fixed length string. */ | |
378 | ||
379 | if (bfd_read ((PTR) nlm_variable_header (abfd) -> oldThreadName, | |
380 | sizeof (nlm_variable_header (abfd) -> oldThreadName), | |
381 | 1, abfd) != | |
382 | sizeof (nlm_variable_header (abfd) -> oldThreadName)) | |
383 | { | |
384 | bfd_error = system_call_error; | |
385 | return (false); | |
386 | } | |
387 | ||
388 | /* Read the screen name length and text members. */ | |
389 | ||
390 | if (bfd_read ((PTR) &nlm_variable_header (abfd) -> screenNameLength, | |
391 | sizeof (nlm_variable_header (abfd) -> screenNameLength), | |
392 | 1, abfd) != | |
393 | sizeof (nlm_variable_header (abfd) -> screenNameLength)) | |
394 | { | |
395 | bfd_error = system_call_error; | |
396 | return (false); | |
397 | } | |
398 | if (bfd_read ((PTR) nlm_variable_header (abfd) -> screenName, | |
399 | nlm_variable_header (abfd) -> screenNameLength + 1, | |
400 | 1, abfd) != | |
401 | nlm_variable_header (abfd) -> screenNameLength + 1) | |
402 | { | |
403 | bfd_error = system_call_error; | |
404 | return (false); | |
405 | } | |
406 | ||
407 | /* Read the thread name length and text members. */ | |
408 | ||
409 | if (bfd_read ((PTR) &nlm_variable_header (abfd) -> threadNameLength, | |
410 | sizeof (nlm_variable_header (abfd) -> threadNameLength), | |
411 | 1, abfd) != | |
412 | sizeof (nlm_variable_header (abfd) -> threadNameLength)) | |
413 | { | |
414 | bfd_error = system_call_error; | |
415 | return (false); | |
416 | } | |
417 | if (bfd_read ((PTR) nlm_variable_header (abfd) -> threadName, | |
418 | nlm_variable_header (abfd) -> threadNameLength + 1, | |
419 | 1, abfd) != | |
420 | nlm_variable_header (abfd) -> threadNameLength + 1) | |
421 | { | |
422 | bfd_error = system_call_error; | |
423 | return (false); | |
424 | } | |
425 | return (true); | |
426 | } | |
427 | ||
b6e7553c FF |
428 | /* Swap and write out the variable length header. All the fields must |
429 | exist in the NLM, and must exist in this order. */ | |
430 | ||
431 | static boolean | |
432 | DEFUN (nlm_swap_variable_header_out, (abfd), | |
433 | bfd * abfd) | |
434 | { | |
435 | unsigned char temp [NLM_TARGET_LONG_SIZE]; | |
436 | ||
437 | /* Write the description length and text members. */ | |
438 | ||
439 | if (bfd_write ((PTR) &nlm_variable_header (abfd) -> descriptionLength, | |
440 | sizeof (nlm_variable_header (abfd) -> descriptionLength), | |
441 | 1, abfd) != | |
442 | sizeof (nlm_variable_header (abfd) -> descriptionLength)) | |
443 | { | |
444 | bfd_error = system_call_error; | |
445 | return (false); | |
446 | } | |
447 | if (bfd_write ((PTR) nlm_variable_header (abfd) -> descriptionText, | |
448 | nlm_variable_header (abfd) -> descriptionLength + 1, | |
449 | 1, abfd) != | |
450 | nlm_variable_header (abfd) -> descriptionLength + 1) | |
451 | { | |
452 | bfd_error = system_call_error; | |
453 | return (false); | |
454 | } | |
455 | ||
456 | /* Convert and write the stackSize field. */ | |
457 | ||
458 | put_word (abfd, (bfd_vma) nlm_variable_header (abfd) -> stackSize, | |
459 | (bfd_byte *) temp); | |
460 | if (bfd_write ((PTR) temp, sizeof (temp), 1, abfd) != sizeof (temp)) | |
461 | { | |
462 | bfd_error = system_call_error; | |
463 | return (false); | |
464 | } | |
465 | ||
466 | /* Convert and write the reserved field. */ | |
467 | ||
468 | put_word (abfd, (bfd_vma) nlm_variable_header (abfd) -> reserved, | |
469 | (bfd_byte *) temp); | |
470 | if (bfd_write ((PTR) temp, sizeof (temp), 1, abfd) != sizeof (temp)) | |
471 | { | |
472 | bfd_error = system_call_error; | |
473 | return (false); | |
474 | } | |
475 | ||
476 | /* Write the oldThreadName field. This field is a fixed length string. */ | |
477 | ||
478 | if (bfd_write ((PTR) nlm_variable_header (abfd) -> oldThreadName, | |
479 | sizeof (nlm_variable_header (abfd) -> oldThreadName), | |
480 | 1, abfd) != | |
481 | sizeof (nlm_variable_header (abfd) -> oldThreadName)) | |
482 | { | |
483 | bfd_error = system_call_error; | |
484 | return (false); | |
485 | } | |
486 | ||
487 | /* Write the screen name length and text members. */ | |
488 | ||
489 | if (bfd_write ((PTR) &nlm_variable_header (abfd) -> screenNameLength, | |
490 | sizeof (nlm_variable_header (abfd) -> screenNameLength), | |
491 | 1, abfd) != | |
492 | sizeof (nlm_variable_header (abfd) -> screenNameLength)) | |
493 | { | |
494 | bfd_error = system_call_error; | |
495 | return (false); | |
496 | } | |
497 | if (bfd_write ((PTR) nlm_variable_header (abfd) -> screenName, | |
498 | nlm_variable_header (abfd) -> screenNameLength + 1, | |
499 | 1, abfd) != | |
500 | nlm_variable_header (abfd) -> screenNameLength + 1) | |
501 | { | |
502 | bfd_error = system_call_error; | |
503 | return (false); | |
504 | } | |
505 | ||
506 | /* Write the thread name length and text members. */ | |
507 | ||
508 | if (bfd_write ((PTR) &nlm_variable_header (abfd) -> threadNameLength, | |
509 | sizeof (nlm_variable_header (abfd) -> threadNameLength), | |
510 | 1, abfd) != | |
511 | sizeof (nlm_variable_header (abfd) -> threadNameLength)) | |
512 | { | |
513 | bfd_error = system_call_error; | |
514 | return (false); | |
515 | } | |
516 | if (bfd_write ((PTR) nlm_variable_header (abfd) -> threadName, | |
517 | nlm_variable_header (abfd) -> threadNameLength + 1, | |
518 | 1, abfd) != | |
519 | nlm_variable_header (abfd) -> threadNameLength + 1) | |
520 | { | |
521 | bfd_error = system_call_error; | |
522 | return (false); | |
523 | } | |
524 | return (true); | |
525 | } | |
526 | ||
c3e964b9 FF |
527 | /* Read and swap in the contents of all the auxiliary headers. Because of |
528 | the braindead design, we have to do strcmps on strings of indeterminate | |
529 | length to figure out what each auxiliary header is. Even worse, we have | |
530 | no way of knowing how many auxiliary headers there are or where the end | |
531 | of the auxiliary headers are, except by finding something that doesn't | |
532 | look like a known auxiliary header. This means that the first new type | |
533 | of auxiliary header added will break all existing tools that don't | |
534 | recognize it. */ | |
535 | ||
536 | static boolean | |
537 | DEFUN (nlm_swap_auxiliary_headers_in, (abfd), | |
538 | bfd * abfd) | |
539 | { | |
c3e964b9 FF |
540 | unsigned char tempstr [16]; |
541 | long position; | |
542 | ||
543 | for (;;) | |
544 | { | |
545 | position = bfd_tell (abfd); | |
546 | if (bfd_read ((PTR) tempstr, sizeof (tempstr), 1, abfd) != | |
547 | sizeof (tempstr)) | |
548 | { | |
549 | bfd_error = system_call_error; | |
550 | return (false); | |
551 | } | |
552 | if (bfd_seek (abfd, position, SEEK_SET) == -1) | |
553 | { | |
554 | bfd_error = system_call_error; | |
555 | return (false); | |
556 | } | |
557 | if (strncmp (tempstr, "VeRsIoN#", 8) == 0) | |
558 | { | |
559 | Nlm_External_Version_Header thdr; | |
560 | if (bfd_read ((PTR) &thdr, sizeof (thdr), 1, abfd) != sizeof (thdr)) | |
561 | { | |
562 | bfd_error = system_call_error; | |
563 | return (false); | |
564 | } | |
565 | memcpy (nlm_version_header (abfd) -> stamp, thdr.stamp, | |
566 | sizeof (thdr.stamp)); | |
567 | nlm_version_header (abfd) -> majorVersion = | |
568 | get_word (abfd, (bfd_byte *) thdr.majorVersion); | |
569 | nlm_version_header (abfd) -> minorVersion = | |
570 | get_word (abfd, (bfd_byte *) thdr.minorVersion); | |
571 | nlm_version_header (abfd) -> revision = | |
572 | get_word (abfd, (bfd_byte *) thdr.revision); | |
573 | nlm_version_header (abfd) -> year = | |
574 | get_word (abfd, (bfd_byte *) thdr.year); | |
575 | nlm_version_header (abfd) -> month = | |
576 | get_word (abfd, (bfd_byte *) thdr.month); | |
577 | nlm_version_header (abfd) -> day = | |
578 | get_word (abfd, (bfd_byte *) thdr.day); | |
579 | } | |
580 | else if (strncmp (tempstr, "MeSsAgEs", 8) == 0) | |
581 | { | |
582 | Nlm_External_Extended_Header thdr; | |
583 | if (bfd_read ((PTR) &thdr, sizeof (thdr), 1, abfd) != sizeof (thdr)) | |
584 | { | |
585 | bfd_error = system_call_error; | |
586 | return (false); | |
587 | } | |
588 | memcpy (nlm_extended_header (abfd) -> stamp, thdr.stamp, | |
589 | sizeof (thdr.stamp)); | |
590 | nlm_extended_header (abfd) -> languageID = | |
591 | get_word (abfd, (bfd_byte *) thdr.languageID); | |
592 | nlm_extended_header (abfd) -> messageFileOffset = | |
593 | get_word (abfd, (bfd_byte *) thdr.messageFileOffset); | |
594 | nlm_extended_header (abfd) -> messageFileLength = | |
595 | get_word (abfd, (bfd_byte *) thdr.messageFileLength); | |
596 | nlm_extended_header (abfd) -> messageCount = | |
597 | get_word (abfd, (bfd_byte *) thdr.messageCount); | |
598 | nlm_extended_header (abfd) -> helpFileOffset = | |
599 | get_word (abfd, (bfd_byte *) thdr.helpFileOffset); | |
600 | nlm_extended_header (abfd) -> helpFileLength = | |
601 | get_word (abfd, (bfd_byte *) thdr.helpFileLength); | |
602 | nlm_extended_header (abfd) -> RPCDataOffset = | |
603 | get_word (abfd, (bfd_byte *) thdr.RPCDataOffset); | |
604 | nlm_extended_header (abfd) -> RPCDataLength = | |
605 | get_word (abfd, (bfd_byte *) thdr.RPCDataLength); | |
606 | nlm_extended_header (abfd) -> sharedCodeOffset = | |
607 | get_word (abfd, (bfd_byte *) thdr.sharedCodeOffset); | |
608 | nlm_extended_header (abfd) -> sharedCodeLength = | |
609 | get_word (abfd, (bfd_byte *) thdr.sharedCodeLength); | |
610 | nlm_extended_header (abfd) -> sharedDataOffset = | |
611 | get_word (abfd, (bfd_byte *) thdr.sharedDataOffset); | |
612 | nlm_extended_header (abfd) -> sharedDataLength = | |
613 | get_word (abfd, (bfd_byte *) thdr.sharedDataLength); | |
614 | nlm_extended_header (abfd) -> sharedRelocationFixupOffset = | |
615 | get_word (abfd, (bfd_byte *) thdr.sharedRelocationFixupOffset); | |
616 | nlm_extended_header (abfd) -> sharedRelocationFixupCount = | |
617 | get_word (abfd, (bfd_byte *) thdr.sharedRelocationFixupCount); | |
618 | nlm_extended_header (abfd) -> sharedExternalReferenceOffset = | |
619 | get_word (abfd, (bfd_byte *) thdr.sharedExternalReferenceOffset); | |
620 | nlm_extended_header (abfd) -> sharedExternalReferenceCount = | |
621 | get_word (abfd, (bfd_byte *) thdr.sharedExternalReferenceCount); | |
622 | nlm_extended_header (abfd) -> sharedPublicsOffset = | |
623 | get_word (abfd, (bfd_byte *) thdr.sharedPublicsOffset); | |
624 | nlm_extended_header (abfd) -> sharedPublicsCount = | |
625 | get_word (abfd, (bfd_byte *) thdr.sharedPublicsCount); | |
626 | nlm_extended_header (abfd) -> SharedInitializationOffset = | |
627 | get_word (abfd, (bfd_byte *) thdr.sharedInitializationOffset); | |
628 | nlm_extended_header (abfd) -> SharedExitProcedureOffset = | |
629 | get_word (abfd, (bfd_byte *) thdr.SharedExitProcedureOffset); | |
630 | nlm_extended_header (abfd) -> productID = | |
631 | get_word (abfd, (bfd_byte *) thdr.productID); | |
632 | nlm_extended_header (abfd) -> reserved0 = | |
633 | get_word (abfd, (bfd_byte *) thdr.reserved0); | |
634 | nlm_extended_header (abfd) -> reserved1 = | |
635 | get_word (abfd, (bfd_byte *) thdr.reserved1); | |
636 | nlm_extended_header (abfd) -> reserved2 = | |
637 | get_word (abfd, (bfd_byte *) thdr.reserved2); | |
638 | nlm_extended_header (abfd) -> reserved3 = | |
639 | get_word (abfd, (bfd_byte *) thdr.reserved3); | |
640 | nlm_extended_header (abfd) -> reserved4 = | |
641 | get_word (abfd, (bfd_byte *) thdr.reserved4); | |
642 | nlm_extended_header (abfd) -> reserved5 = | |
643 | get_word (abfd, (bfd_byte *) thdr.reserved5); | |
644 | } | |
645 | else if (strncmp (tempstr, "CuStHeAd", 8) == 0) | |
646 | { | |
647 | Nlm_External_Custom_Header thdr; | |
648 | if (bfd_read ((PTR) &thdr, sizeof (thdr), 1, abfd) != sizeof (thdr)) | |
649 | { | |
650 | bfd_error = system_call_error; | |
651 | return (false); | |
652 | } | |
653 | memcpy (nlm_custom_header (abfd) -> stamp, thdr.stamp, | |
654 | sizeof (thdr.stamp)); | |
655 | nlm_custom_header (abfd) -> dataLength = | |
656 | get_word (abfd, (bfd_byte *) thdr.dataLength); | |
657 | nlm_custom_header (abfd) -> debugRecOffset = | |
658 | get_word (abfd, (bfd_byte *) thdr.debugRecOffset); | |
659 | nlm_custom_header (abfd) -> debugRecLength = | |
660 | get_word (abfd, (bfd_byte *) thdr.debugRecLength); | |
661 | } | |
662 | else if (strncmp (tempstr, "CoPyRiGhT=", 10) == 0) | |
663 | { | |
664 | Nlm_External_Copyright_Header thdr; | |
45a78ebb ILT |
665 | if (bfd_read ((PTR) &nlm_copyright_header (abfd)->stamp, |
666 | sizeof (nlm_copyright_header (abfd)->stamp), | |
667 | 1, abfd) | |
668 | != sizeof (nlm_copyright_header (abfd)->stamp)) | |
669 | { | |
670 | bfd_error = system_call_error; | |
671 | return (false); | |
672 | } | |
673 | if (bfd_read ((PTR) &(nlm_copyright_header (abfd) | |
674 | ->copyrightMessageLength), | |
675 | 1, 1, abfd) != 1) | |
c3e964b9 FF |
676 | { |
677 | bfd_error = system_call_error; | |
678 | return (false); | |
679 | } | |
c3e964b9 FF |
680 | /* The copyright message is a variable length string. */ |
681 | if (bfd_read ((PTR) nlm_copyright_header (abfd) -> copyrightMessage, | |
682 | nlm_copyright_header (abfd) -> copyrightMessageLength + 1, | |
683 | 1, abfd) != | |
684 | nlm_copyright_header (abfd) -> copyrightMessageLength + 1) | |
685 | { | |
686 | bfd_error = system_call_error; | |
687 | return (false); | |
688 | } | |
689 | } | |
690 | else | |
691 | { | |
692 | break; | |
693 | } | |
694 | } | |
b6e7553c FF |
695 | return (true); |
696 | } | |
697 | ||
698 | /* Return whether there is a non-zero byte in a memory block. */ | |
699 | ||
700 | static boolean | |
701 | find_nonzero (buf, size) | |
702 | PTR buf; | |
703 | size_t size; | |
704 | { | |
705 | char *p = (char *) buf; | |
706 | ||
707 | while (size-- != 0) | |
708 | if (*p++ != 0) | |
709 | return true; | |
710 | return false; | |
711 | } | |
712 | ||
713 | /* Swap out the contents of the auxiliary headers. We create those | |
714 | auxiliary headers which have been set non-zero. We do not require | |
715 | the caller to set up the stamp fields. */ | |
716 | ||
717 | static boolean | |
718 | nlm_swap_auxiliary_headers_out (abfd) | |
719 | bfd *abfd; | |
720 | { | |
721 | /* Write out the version header if there is one. */ | |
722 | if (find_nonzero ((PTR) nlm_version_header (abfd), | |
723 | sizeof (Nlm_Internal_Version_Header))) | |
724 | { | |
725 | Nlm_External_Version_Header thdr; | |
726 | ||
727 | memcpy (thdr.stamp, "VeRsIoN#", 8); | |
728 | put_word (abfd, (bfd_vma) nlm_version_header (abfd) -> majorVersion, | |
729 | (bfd_byte *) thdr.majorVersion); | |
730 | put_word (abfd, (bfd_vma) nlm_version_header (abfd) -> minorVersion, | |
731 | (bfd_byte *) thdr.minorVersion); | |
732 | put_word (abfd, (bfd_vma) nlm_version_header (abfd) -> revision, | |
733 | (bfd_byte *) thdr.revision); | |
734 | put_word (abfd, (bfd_vma) nlm_version_header (abfd) -> year, | |
735 | (bfd_byte *) thdr.year); | |
736 | put_word (abfd, (bfd_vma) nlm_version_header (abfd) -> month, | |
737 | (bfd_byte *) thdr.month); | |
738 | put_word (abfd, (bfd_vma) nlm_version_header (abfd) -> day, | |
739 | (bfd_byte *) thdr.day); | |
740 | if (bfd_write ((PTR) &thdr, sizeof (thdr), 1, abfd) != sizeof (thdr)) | |
741 | { | |
742 | bfd_error = system_call_error; | |
743 | return false; | |
744 | } | |
745 | } | |
746 | ||
747 | /* Write out the extended header if there is one. */ | |
748 | if (find_nonzero ((PTR) nlm_extended_header (abfd), | |
749 | sizeof (Nlm_Internal_Extended_Header))) | |
750 | { | |
751 | Nlm_External_Extended_Header thdr; | |
752 | ||
753 | memcpy (thdr.stamp, "MeSsAgEs", 8); | |
754 | put_word (abfd, | |
755 | (bfd_vma) nlm_extended_header (abfd) -> languageID, | |
756 | (bfd_byte *) thdr.languageID); | |
757 | put_word (abfd, | |
758 | (bfd_vma) nlm_extended_header (abfd) -> messageFileOffset, | |
759 | (bfd_byte *) thdr.messageFileOffset); | |
760 | put_word (abfd, | |
761 | (bfd_vma) nlm_extended_header (abfd) -> messageFileLength, | |
762 | (bfd_byte *) thdr.messageFileLength); | |
763 | put_word (abfd, | |
764 | (bfd_vma) nlm_extended_header (abfd) -> messageCount, | |
765 | (bfd_byte *) thdr.messageCount); | |
766 | put_word (abfd, | |
767 | (bfd_vma) nlm_extended_header (abfd) -> helpFileOffset, | |
768 | (bfd_byte *) thdr.helpFileOffset); | |
769 | put_word (abfd, | |
770 | (bfd_vma) nlm_extended_header (abfd) -> helpFileLength, | |
771 | (bfd_byte *) thdr.helpFileLength); | |
772 | put_word (abfd, | |
773 | (bfd_vma) nlm_extended_header (abfd) -> RPCDataOffset, | |
774 | (bfd_byte *) thdr.RPCDataOffset); | |
775 | put_word (abfd, | |
776 | (bfd_vma) nlm_extended_header (abfd) -> RPCDataLength, | |
777 | (bfd_byte *) thdr.RPCDataLength); | |
778 | put_word (abfd, | |
779 | (bfd_vma) nlm_extended_header (abfd) -> sharedCodeOffset, | |
780 | (bfd_byte *) thdr.sharedCodeOffset); | |
781 | put_word (abfd, | |
782 | (bfd_vma) nlm_extended_header (abfd) -> sharedCodeLength, | |
783 | (bfd_byte *) thdr.sharedCodeLength); | |
784 | put_word (abfd, | |
785 | (bfd_vma) nlm_extended_header (abfd) -> sharedDataOffset, | |
786 | (bfd_byte *) thdr.sharedDataOffset); | |
787 | put_word (abfd, | |
788 | (bfd_vma) nlm_extended_header (abfd) -> sharedDataLength, | |
789 | (bfd_byte *) thdr.sharedDataLength); | |
790 | put_word (abfd, | |
791 | (bfd_vma) nlm_extended_header (abfd) -> sharedRelocationFixupOffset, | |
792 | (bfd_byte *) thdr.sharedRelocationFixupOffset); | |
793 | put_word (abfd, | |
794 | (bfd_vma) nlm_extended_header (abfd) -> sharedRelocationFixupCount, | |
795 | (bfd_byte *) thdr.sharedRelocationFixupCount); | |
796 | put_word (abfd, | |
797 | (bfd_vma) nlm_extended_header (abfd) -> sharedExternalReferenceOffset, | |
798 | (bfd_byte *) thdr.sharedExternalReferenceOffset); | |
799 | put_word (abfd, | |
800 | (bfd_vma) nlm_extended_header (abfd) -> sharedExternalReferenceCount, | |
801 | (bfd_byte *) thdr.sharedExternalReferenceCount); | |
802 | put_word (abfd, | |
803 | (bfd_vma) nlm_extended_header (abfd) -> sharedPublicsOffset, | |
804 | (bfd_byte *) thdr.sharedPublicsOffset); | |
805 | put_word (abfd, | |
806 | (bfd_vma) nlm_extended_header (abfd) -> sharedPublicsCount, | |
807 | (bfd_byte *) thdr.sharedPublicsCount); | |
808 | put_word (abfd, | |
809 | (bfd_vma) nlm_extended_header (abfd) -> SharedInitializationOffset, | |
810 | (bfd_byte *) thdr.sharedInitializationOffset); | |
811 | put_word (abfd, | |
812 | (bfd_vma) nlm_extended_header (abfd) -> SharedExitProcedureOffset, | |
813 | (bfd_byte *) thdr.SharedExitProcedureOffset); | |
814 | put_word (abfd, | |
815 | (bfd_vma) nlm_extended_header (abfd) -> productID, | |
816 | (bfd_byte *) thdr.productID); | |
817 | put_word (abfd, | |
818 | (bfd_vma) nlm_extended_header (abfd) -> reserved0, | |
819 | (bfd_byte *) thdr.reserved0); | |
820 | put_word (abfd, | |
821 | (bfd_vma) nlm_extended_header (abfd) -> reserved1, | |
822 | (bfd_byte *) thdr.reserved1); | |
823 | put_word (abfd, | |
824 | (bfd_vma) nlm_extended_header (abfd) -> reserved2, | |
825 | (bfd_byte *) thdr.reserved2); | |
826 | put_word (abfd, | |
827 | (bfd_vma) nlm_extended_header (abfd) -> reserved3, | |
828 | (bfd_byte *) thdr.reserved3); | |
829 | put_word (abfd, | |
830 | (bfd_vma) nlm_extended_header (abfd) -> reserved4, | |
831 | (bfd_byte *) thdr.reserved4); | |
832 | put_word (abfd, | |
833 | (bfd_vma) nlm_extended_header (abfd) -> reserved5, | |
834 | (bfd_byte *) thdr.reserved5); | |
835 | if (bfd_write ((PTR) &thdr, sizeof (thdr), 1, abfd) != sizeof (thdr)) | |
836 | { | |
837 | bfd_error = system_call_error; | |
838 | return false; | |
839 | } | |
840 | } | |
841 | ||
842 | /* Write out the custom header if there is one. */ | |
843 | if (find_nonzero ((PTR) nlm_custom_header (abfd), | |
844 | sizeof (Nlm_Internal_Custom_Header))) | |
845 | { | |
846 | Nlm_External_Custom_Header thdr; | |
847 | ||
848 | /* Right now we assume the custom header is always the suggested | |
849 | format for alternate debugging records. */ | |
850 | BFD_ASSERT (nlm_custom_header (abfd) -> dataLength == 8); | |
851 | ||
852 | memcpy (thdr.stamp, "CuStHeAd", 8); | |
853 | put_word (abfd, (bfd_vma) nlm_custom_header (abfd) -> dataLength, | |
854 | (bfd_byte *) thdr.dataLength); | |
855 | put_word (abfd, (bfd_vma) nlm_custom_header (abfd) -> debugRecOffset, | |
856 | (bfd_byte *) thdr.debugRecOffset); | |
857 | put_word (abfd, (bfd_vma) nlm_custom_header (abfd) -> debugRecLength, | |
858 | (bfd_byte *) thdr.debugRecLength); | |
859 | if (bfd_write ((PTR) &thdr, sizeof (thdr), 1, abfd) != sizeof (thdr)) | |
860 | { | |
861 | bfd_error = system_call_error; | |
862 | return false; | |
863 | } | |
864 | } | |
865 | ||
866 | /* Write out the copyright header if there is one. */ | |
867 | if (find_nonzero ((PTR) nlm_copyright_header (abfd), | |
868 | sizeof (Nlm_Internal_Copyright_Header))) | |
869 | { | |
870 | Nlm_External_Copyright_Header thdr; | |
871 | ||
872 | memcpy (thdr.stamp, "CoPyRiGhT=", 10); | |
45a78ebb ILT |
873 | if (bfd_write ((PTR) thdr.stamp, sizeof (thdr.stamp), 1, abfd) |
874 | != sizeof (thdr.stamp)) | |
875 | { | |
876 | bfd_error = system_call_error; | |
877 | return false; | |
878 | } | |
879 | thdr.copyrightMessageLength[0] = | |
880 | nlm_copyright_header (abfd)->copyrightMessageLength; | |
881 | if (bfd_write ((PTR) thdr.copyrightMessageLength, 1, 1, abfd) != 1) | |
882 | { | |
883 | bfd_error = system_call_error; | |
884 | return false; | |
885 | } | |
b6e7553c FF |
886 | /* The copyright message is a variable length string. */ |
887 | if (bfd_write ((PTR) nlm_copyright_header (abfd) -> copyrightMessage, | |
888 | nlm_copyright_header (abfd) -> copyrightMessageLength + 1, | |
889 | 1, abfd) != | |
890 | nlm_copyright_header (abfd) -> copyrightMessageLength + 1) | |
891 | { | |
892 | bfd_error = system_call_error; | |
893 | return false; | |
894 | } | |
895 | } | |
896 | ||
897 | return true; | |
c3e964b9 FF |
898 | } |
899 | ||
900 | /* We read the NLM's public symbols and use it to generate a bfd symbol | |
901 | table (hey, it's better than nothing) on a one-for-one basis. Thus | |
902 | use the number of public symbols as the number of bfd symbols we will | |
903 | have once we actually get around to reading them in. | |
904 | ||
905 | Return the number of bytes required to hold the symtab vector, based on | |
906 | the count plus 1, since we will NULL terminate the vector allocated based | |
907 | on this size. */ | |
908 | ||
909 | unsigned int | |
910 | DEFUN (nlm_get_symtab_upper_bound, (abfd), bfd * abfd) | |
911 | { | |
912 | Nlm_Internal_Fixed_Header *i_fxdhdrp; /* Nlm file header, internal form */ | |
913 | unsigned int symcount; | |
914 | unsigned int symtab_size = 0; | |
915 | ||
916 | i_fxdhdrp = nlm_fixed_header (abfd); | |
b6e7553c | 917 | symcount = (i_fxdhdrp -> numberOfPublics |
45a78ebb | 918 | + i_fxdhdrp -> numberOfDebugRecords |
b6e7553c | 919 | + i_fxdhdrp -> numberOfExternalReferences); |
c3e964b9 FF |
920 | symtab_size = (symcount + 1) * (sizeof (asymbol)); |
921 | return (symtab_size); | |
922 | } | |
923 | ||
924 | /* Note that bfd_get_symcount is guaranteed to be zero if slurping the | |
925 | symbol table fails. */ | |
926 | ||
927 | unsigned int | |
b6e7553c FF |
928 | nlm_get_symtab (abfd, alocation) |
929 | bfd *abfd; | |
930 | asymbol **alocation; | |
c3e964b9 | 931 | { |
b6e7553c FF |
932 | nlm_symbol_type *symbase; |
933 | bfd_size_type counter = 0; | |
934 | ||
935 | if (nlm_slurp_symbol_table (abfd) == false) | |
936 | return 0; | |
937 | symbase = nlm_get_symbols (abfd); | |
938 | while (counter < bfd_get_symcount (abfd)) | |
939 | { | |
940 | *alocation++ = &symbase->symbol; | |
941 | symbase++; | |
942 | counter++; | |
943 | } | |
944 | *alocation = (asymbol *) NULL; | |
945 | return bfd_get_symcount (abfd); | |
c3e964b9 FF |
946 | } |
947 | ||
b6e7553c FF |
948 | /* Make an NLM symbol. There is nothing special to do here. */ |
949 | ||
c3e964b9 | 950 | asymbol * |
b6e7553c FF |
951 | nlm_make_empty_symbol (abfd) |
952 | bfd * abfd; | |
c3e964b9 | 953 | { |
b6e7553c FF |
954 | nlm_symbol_type *new; |
955 | ||
956 | new = (nlm_symbol_type *) bfd_zalloc (abfd, sizeof (nlm_symbol_type)); | |
957 | new->symbol.the_bfd = abfd; | |
958 | return &new->symbol; | |
c3e964b9 FF |
959 | } |
960 | ||
b6e7553c FF |
961 | /* Get symbol information. */ |
962 | ||
c3e964b9 | 963 | void |
b6e7553c FF |
964 | nlm_get_symbol_info (ignore_abfd, symbol, ret) |
965 | bfd * ignore_abfd; | |
966 | asymbol * symbol; | |
967 | symbol_info * ret; | |
c3e964b9 FF |
968 | { |
969 | bfd_symbol_info (symbol, ret); | |
970 | } | |
971 | ||
b6e7553c FF |
972 | /* Print symbol information. */ |
973 | ||
974 | void | |
975 | nlm_print_symbol (abfd, afile, symbol, how) | |
976 | bfd *abfd; | |
977 | PTR afile; | |
978 | asymbol *symbol; | |
979 | bfd_print_symbol_type how; | |
c3e964b9 | 980 | { |
b6e7553c FF |
981 | FILE *file = (FILE *) afile; |
982 | ||
983 | switch (how) | |
984 | { | |
985 | case bfd_print_symbol_name: | |
986 | case bfd_print_symbol_more: | |
987 | if (symbol->name) | |
988 | fprintf (file,"%s", symbol->name); | |
989 | break; | |
990 | case bfd_print_symbol_all: | |
991 | bfd_print_symbol_vandf ((PTR) file, symbol); | |
992 | fprintf (file, " %-5s", symbol->section->name); | |
993 | if (symbol->name) | |
994 | fprintf (file," %s", symbol->name); | |
995 | break; | |
996 | } | |
c3e964b9 FF |
997 | } |
998 | ||
999 | /* Slurp in nlm symbol table. | |
1000 | ||
1001 | In the external (in-file) form, NLM export records are variable length, | |
1002 | with the following form: | |
1003 | ||
1004 | 1 byte length of the symbol name (N) | |
1005 | N bytes the symbol name | |
1006 | 4 bytes the symbol offset from start of it's section | |
1007 | ||
45a78ebb ILT |
1008 | We also read in the debugging symbols and import records. Import |
1009 | records are treated as undefined symbols. As we read the import | |
1010 | records we also read in the associated reloc information, which is | |
1011 | attached to the symbol. | |
b6e7553c FF |
1012 | |
1013 | The bfd symbols are copied to SYMPTRS. | |
c3e964b9 FF |
1014 | |
1015 | When we return, the bfd symcount is either zero or contains the correct | |
1016 | number of symbols. | |
1017 | */ | |
1018 | ||
1019 | static boolean | |
b6e7553c FF |
1020 | nlm_slurp_symbol_table (abfd) |
1021 | bfd *abfd; | |
c3e964b9 FF |
1022 | { |
1023 | Nlm_Internal_Fixed_Header *i_fxdhdrp; /* Nlm file header, internal form */ | |
b6e7553c FF |
1024 | bfd_size_type totsymcount; /* Number of NLM symbols */ |
1025 | bfd_size_type symcount; /* Counter of NLM symbols */ | |
c3e964b9 | 1026 | nlm_symbol_type *sym; /* Pointer to current bfd symbol */ |
45a78ebb ILT |
1027 | unsigned char symlength; /* Symbol length read into here */ |
1028 | unsigned char symtype; /* Type of debugging symbol */ | |
b6e7553c FF |
1029 | bfd_size_type rcount; /* Number of relocs */ |
1030 | bfd_byte temp[NLM_TARGET_LONG_SIZE]; /* Symbol offsets read into here */ | |
1031 | boolean (*read_reloc_func) PARAMS ((bfd *, nlm_symbol_type *, asection **, | |
1032 | arelent *)); | |
c3e964b9 | 1033 | |
b6e7553c FF |
1034 | if (nlm_get_symbols (abfd) != NULL) |
1035 | return (true); | |
c3e964b9 FF |
1036 | |
1037 | /* Read each raw NLM symbol, using the information to create a canonical bfd | |
1038 | symbol table entry. | |
1039 | ||
1040 | Note that we allocate the initial bfd canonical symbol buffer based on a | |
1041 | one-to-one mapping of the NLM symbols to canonical symbols. We actually | |
1042 | use all the NLM symbols, so there will be no space left over at the end. | |
1043 | When we have all the symbols, we build the caller's pointer vector. */ | |
1044 | ||
1045 | abfd -> symcount = 0; | |
1046 | i_fxdhdrp = nlm_fixed_header (abfd); | |
b6e7553c | 1047 | totsymcount = (i_fxdhdrp -> numberOfPublics |
45a78ebb | 1048 | + i_fxdhdrp -> numberOfDebugRecords |
b6e7553c FF |
1049 | + i_fxdhdrp -> numberOfExternalReferences); |
1050 | if (totsymcount == 0) | |
c3e964b9 FF |
1051 | { |
1052 | return (true); | |
1053 | } | |
b6e7553c | 1054 | |
c3e964b9 FF |
1055 | if (bfd_seek (abfd, i_fxdhdrp -> publicsOffset, SEEK_SET) == -1) |
1056 | { | |
1057 | bfd_error = system_call_error; | |
1058 | return (false); | |
1059 | } | |
b6e7553c FF |
1060 | |
1061 | sym = ((nlm_symbol_type *) | |
1062 | bfd_zalloc (abfd, totsymcount * sizeof (nlm_symbol_type))); | |
1063 | nlm_set_symbols (abfd, sym); | |
c3e964b9 FF |
1064 | |
1065 | /* We use the bfd's symcount directly as the control count, so that early | |
1066 | termination of the loop leaves the symcount correct for the symbols that | |
1067 | were read. */ | |
1068 | ||
b6e7553c | 1069 | symcount = i_fxdhdrp -> numberOfPublics; |
c3e964b9 FF |
1070 | while (abfd -> symcount < symcount) |
1071 | { | |
1072 | if (bfd_read ((PTR) &symlength, sizeof (symlength), 1, abfd) | |
1073 | != sizeof (symlength)) | |
1074 | { | |
1075 | bfd_error = system_call_error; | |
1076 | return (false); | |
1077 | } | |
1078 | sym -> symbol.the_bfd = abfd; | |
1079 | sym -> symbol.name = bfd_alloc (abfd, symlength + 1); | |
1080 | if (bfd_read ((PTR) sym -> symbol.name, symlength, 1, abfd) | |
1081 | != symlength) | |
1082 | { | |
1083 | bfd_error = system_call_error; | |
1084 | return (false); | |
1085 | } | |
b6e7553c | 1086 | if (bfd_read ((PTR) temp, sizeof (temp), 1, abfd) != sizeof (temp)) |
c3e964b9 FF |
1087 | { |
1088 | bfd_error = system_call_error; | |
1089 | return (false); | |
1090 | } | |
1091 | sym -> symbol.flags = BSF_GLOBAL | BSF_EXPORT; | |
b6e7553c FF |
1092 | sym -> symbol.value = get_word (abfd, temp); |
1093 | if (sym -> symbol.value & NLM_HIBIT) | |
c3e964b9 | 1094 | { |
b6e7553c | 1095 | sym -> symbol.value &= ~NLM_HIBIT; |
c3e964b9 FF |
1096 | sym -> symbol.flags |= BSF_FUNCTION; |
1097 | sym -> symbol.section = | |
1098 | bfd_get_section_by_name (abfd, NLM_CODE_NAME); | |
1099 | } | |
1100 | else | |
1101 | { | |
1102 | sym -> symbol.section = | |
1103 | bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_NAME); | |
1104 | } | |
b6e7553c | 1105 | sym -> rcnt = 0; |
c3e964b9 FF |
1106 | abfd -> symcount++; |
1107 | sym++; | |
1108 | } | |
1109 | ||
45a78ebb ILT |
1110 | /* Read the debugging records. */ |
1111 | ||
1112 | if (i_fxdhdrp -> numberOfDebugRecords > 0) | |
1113 | { | |
1114 | if (bfd_seek (abfd, i_fxdhdrp -> debugInfoOffset, SEEK_SET) == -1) | |
1115 | { | |
1116 | bfd_error = system_call_error; | |
1117 | return (false); | |
1118 | } | |
1119 | ||
1120 | symcount += i_fxdhdrp -> numberOfDebugRecords; | |
1121 | while (abfd -> symcount < symcount) | |
1122 | { | |
1123 | if ((bfd_read ((PTR) &symtype, sizeof (symtype), 1, abfd) | |
1124 | != sizeof (symtype)) | |
1125 | || bfd_read ((PTR) temp, sizeof (temp), 1, abfd) != sizeof (temp) | |
1126 | || (bfd_read ((PTR) &symlength, sizeof (symlength), 1, abfd) | |
1127 | != sizeof (symlength))) | |
1128 | { | |
1129 | bfd_error = system_call_error; | |
1130 | return false; | |
1131 | } | |
1132 | sym -> symbol.the_bfd = abfd; | |
1133 | sym -> symbol.name = bfd_alloc (abfd, symlength + 1); | |
1134 | if (bfd_read ((PTR) sym -> symbol.name, symlength, 1, abfd) | |
1135 | != symlength) | |
1136 | { | |
1137 | bfd_error = system_call_error; | |
1138 | return (false); | |
1139 | } | |
1140 | sym -> symbol.flags = BSF_LOCAL; | |
1141 | sym -> symbol.value = get_word (abfd, temp); | |
1142 | if (symtype == 0) | |
1143 | { | |
1144 | sym -> symbol.section = | |
1145 | bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_NAME); | |
1146 | } | |
1147 | else if (symtype == 1) | |
1148 | { | |
1149 | sym -> symbol.flags |= BSF_FUNCTION; | |
1150 | sym -> symbol.section = | |
1151 | bfd_get_section_by_name (abfd, NLM_CODE_NAME); | |
1152 | } | |
1153 | else | |
1154 | { | |
1155 | sym -> symbol.section = &bfd_abs_section; | |
1156 | } | |
1157 | sym -> rcnt = 0; | |
1158 | abfd -> symcount++; | |
1159 | sym++; | |
1160 | } | |
1161 | } | |
1162 | ||
b6e7553c FF |
1163 | /* Read in the import records. We can only do this if we know how |
1164 | to read relocs for this target. */ | |
c3e964b9 | 1165 | |
b6e7553c FF |
1166 | read_reloc_func = nlm_read_reloc_func (abfd); |
1167 | if (read_reloc_func != NULL) | |
c3e964b9 | 1168 | { |
b6e7553c FF |
1169 | if (bfd_seek (abfd, i_fxdhdrp -> externalReferencesOffset, SEEK_SET) |
1170 | == -1) | |
c3e964b9 | 1171 | { |
b6e7553c FF |
1172 | bfd_error = system_call_error; |
1173 | return (false); | |
1174 | } | |
1175 | ||
1176 | symcount += i_fxdhdrp -> numberOfExternalReferences; | |
1177 | while (abfd -> symcount < symcount) | |
1178 | { | |
1179 | struct nlm_relent *nlm_relocs; | |
1180 | ||
1181 | if (bfd_read ((PTR) &symlength, sizeof (symlength), 1, abfd) | |
1182 | != sizeof (symlength)) | |
1183 | { | |
1184 | bfd_error = system_call_error; | |
1185 | return (false); | |
1186 | } | |
1187 | sym -> symbol.the_bfd = abfd; | |
1188 | sym -> symbol.name = bfd_alloc (abfd, symlength + 1); | |
1189 | if (bfd_read ((PTR) sym -> symbol.name, symlength, 1, abfd) | |
1190 | != symlength) | |
1191 | { | |
1192 | bfd_error = system_call_error; | |
1193 | return (false); | |
1194 | } | |
1195 | sym -> symbol.flags = 0; | |
1196 | sym -> symbol.value = 0; | |
1197 | sym -> symbol.section = &bfd_und_section; | |
1198 | if (bfd_read ((PTR) temp, sizeof (temp), 1, abfd) != sizeof (temp)) | |
1199 | { | |
1200 | bfd_error = system_call_error; | |
1201 | return (false); | |
1202 | } | |
1203 | rcount = get_word (abfd, temp); | |
1204 | nlm_relocs = ((struct nlm_relent *) | |
1205 | bfd_alloc (abfd, rcount * sizeof (struct nlm_relent))); | |
1206 | sym -> relocs = nlm_relocs; | |
1207 | sym -> rcnt = 0; | |
1208 | while (sym -> rcnt < rcount) | |
1209 | { | |
1210 | asection *section; | |
1211 | ||
1212 | if ((*read_reloc_func) (abfd, sym, §ion, | |
1213 | &nlm_relocs -> reloc) | |
1214 | == false) | |
1215 | return false; | |
1216 | nlm_relocs -> section = section; | |
1217 | nlm_relocs++; | |
1218 | sym -> rcnt++; | |
1219 | } | |
1220 | ||
1221 | abfd -> symcount++; | |
c3e964b9 FF |
1222 | sym++; |
1223 | } | |
c3e964b9 FF |
1224 | } |
1225 | ||
1226 | return (true); | |
1227 | } | |
b6e7553c FF |
1228 | \f |
1229 | /* Get the relocs for an NLM file. There are two types of relocs. | |
1230 | Imports are relocs against symbols defined in other NLM files. We | |
1231 | treat these as relocs against global symbols. Relocation fixups | |
1232 | are internal relocs. | |
1233 | ||
1234 | The actual format used to store the relocs is machine specific. */ | |
1235 | ||
1236 | /* Read in the relocation fixup information. This is stored in | |
1237 | nlm_relocation_fixups, an array of arelent structures, and | |
1238 | nlm_relocation_fixup_secs, an array of section pointers. The | |
1239 | section pointers are needed because the relocs are not sorted by | |
1240 | section. */ | |
1241 | ||
1242 | static boolean | |
1243 | nlm_slurp_reloc_fixups (abfd) | |
1244 | bfd *abfd; | |
1245 | { | |
1246 | boolean (*read_func) PARAMS ((bfd *, nlm_symbol_type *, asection **, | |
1247 | arelent *)); | |
1248 | bfd_size_type count; | |
1249 | arelent *rels; | |
1250 | asection **secs; | |
1251 | ||
1252 | if (nlm_relocation_fixups (abfd) != NULL) | |
1253 | return true; | |
1254 | read_func = nlm_read_reloc_func (abfd); | |
1255 | if (read_func == NULL) | |
1256 | return true; | |
1257 | ||
1258 | if (bfd_seek (abfd, nlm_fixed_header (abfd)->relocationFixupOffset, | |
1259 | SEEK_SET) != 0) | |
1260 | { | |
1261 | bfd_error = system_call_error; | |
1262 | return false; | |
1263 | } | |
1264 | ||
1265 | count = nlm_fixed_header (abfd)->numberOfRelocationFixups; | |
1266 | rels = (arelent *) bfd_alloc (abfd, count * sizeof (arelent)); | |
1267 | secs = (asection **) bfd_alloc (abfd, count * sizeof (asection *)); | |
1268 | if (rels == NULL || secs == NULL) | |
1269 | { | |
1270 | bfd_error = no_memory; | |
1271 | return false; | |
1272 | } | |
1273 | nlm_relocation_fixups (abfd) = rels; | |
1274 | nlm_relocation_fixup_secs (abfd) = secs; | |
1275 | ||
1276 | /* We have to read piece by piece, because we don't know how large | |
1277 | the machine specific reloc information is. */ | |
1278 | while (count-- != 0) | |
1279 | { | |
1280 | if ((*read_func) (abfd, (nlm_symbol_type *) NULL, secs, rels) == false) | |
1281 | { | |
1282 | nlm_relocation_fixups (abfd) = NULL; | |
1283 | nlm_relocation_fixup_secs (abfd) = NULL; | |
1284 | return false; | |
1285 | } | |
1286 | ++secs; | |
1287 | ++rels; | |
1288 | } | |
1289 | ||
1290 | return true; | |
1291 | } | |
1292 | ||
1293 | /* Get the number of relocs. This really just returns an upper bound, | |
1294 | since it does not attempt to distinguish them based on the section. | |
1295 | That will be handled when they are actually read. */ | |
1296 | ||
1297 | unsigned int | |
1298 | nlm_get_reloc_upper_bound (abfd, sec) | |
1299 | bfd *abfd; | |
1300 | asection *sec; | |
1301 | { | |
1302 | nlm_symbol_type *syms; | |
1303 | bfd_size_type count; | |
1304 | unsigned int ret; | |
1305 | ||
1306 | /* If we don't know how to read relocs, just return 0. */ | |
1307 | if (nlm_read_reloc_func (abfd) == NULL) | |
1308 | return 0; | |
1309 | /* Make sure we have either the code or the data section. */ | |
1310 | if ((bfd_get_section_flags (abfd, sec) & (SEC_CODE | SEC_DATA)) == 0) | |
1311 | return 0; | |
1312 | ||
1313 | syms = nlm_get_symbols (abfd); | |
1314 | if (syms == NULL) | |
1315 | { | |
8b977377 | 1316 | if (nlm_slurp_symbol_table (abfd) == false) |
b6e7553c FF |
1317 | return 0; |
1318 | syms = nlm_get_symbols (abfd); | |
1319 | } | |
1320 | ||
1321 | ret = nlm_fixed_header (abfd)->numberOfRelocationFixups; | |
1322 | ||
1323 | count = bfd_get_symcount (abfd); | |
1324 | while (count-- != 0) | |
1325 | { | |
1326 | ret += syms->rcnt; | |
1327 | ++syms; | |
1328 | } | |
1329 | ||
1330 | return (ret + 1) * sizeof (arelent *); | |
1331 | } | |
1332 | ||
1333 | /* Get the relocs themselves. */ | |
1334 | ||
1335 | unsigned int | |
1336 | nlm_canonicalize_reloc (abfd, sec, relptr, symbols) | |
1337 | bfd *abfd; | |
1338 | asection *sec; | |
1339 | arelent **relptr; | |
1340 | asymbol **symbols; | |
1341 | { | |
1342 | arelent *rels; | |
1343 | asection **secs; | |
1344 | bfd_size_type count, i; | |
1345 | unsigned int ret; | |
1346 | ||
1347 | /* Get the relocation fixups. */ | |
1348 | rels = nlm_relocation_fixups (abfd); | |
1349 | if (rels == NULL) | |
1350 | { | |
8b977377 | 1351 | if (nlm_slurp_reloc_fixups (abfd) == false) |
b6e7553c FF |
1352 | return 0; |
1353 | rels = nlm_relocation_fixups (abfd); | |
1354 | if (rels == NULL) | |
1355 | return 0; | |
1356 | } | |
1357 | secs = nlm_relocation_fixup_secs (abfd); | |
1358 | ||
1359 | ret = 0; | |
1360 | count = nlm_fixed_header (abfd)->numberOfRelocationFixups; | |
1361 | for (i = 0; i < count; i++, rels++, secs++) | |
1362 | { | |
1363 | if (*secs == sec) | |
1364 | { | |
1365 | *relptr++ = rels; | |
1366 | ++ret; | |
1367 | } | |
1368 | } | |
1369 | ||
1370 | /* Get the import symbols. */ | |
1371 | count = bfd_get_symcount (abfd); | |
1372 | for (i = 0; i < count; i++, symbols++) | |
1373 | { | |
1374 | asymbol *sym; | |
1375 | ||
1376 | sym = *symbols; | |
1377 | if (bfd_asymbol_flavour (sym) == bfd_target_nlm_flavour) | |
1378 | { | |
1379 | nlm_symbol_type *nlm_sym; | |
1380 | bfd_size_type j; | |
1381 | ||
1382 | nlm_sym = (nlm_symbol_type *) sym; | |
1383 | for (j = 0; j < nlm_sym->rcnt; j++) | |
1384 | { | |
1385 | if (nlm_sym->relocs[j].section == sec) | |
1386 | { | |
1387 | *relptr = &nlm_sym->relocs[j].reloc; | |
1388 | (*relptr)->sym_ptr_ptr = symbols; | |
1389 | ++relptr; | |
1390 | ++ret; | |
1391 | } | |
1392 | } | |
1393 | } | |
1394 | } | |
1395 | ||
1396 | *relptr = NULL; | |
1397 | ||
1398 | return ret; | |
1399 | } | |
1400 | \f | |
1401 | /* Compute the section file positions for an NLM file. All variable | |
1402 | length data in the file headers must be set before this function is | |
1403 | called. If the variable length data is changed later, the | |
1404 | resulting object file will be incorrect. Unfortunately, there is | |
1405 | no way to check this. | |
1406 | ||
1407 | This routine also sets the Size and Offset fields in the fixed | |
7389debf ILT |
1408 | header. |
1409 | ||
1410 | It also looks over the symbols and moves any common symbols into | |
1411 | the .bss section; NLM has no way to represent a common symbol. | |
1412 | This approach means that either the symbols must already have been | |
1413 | set at this point, or there must be no common symbols. We need to | |
1414 | move the symbols at this point so that mangle_relocs can see the | |
1415 | final values. */ | |
b6e7553c FF |
1416 | |
1417 | static boolean | |
1418 | nlm_compute_section_file_positions (abfd) | |
1419 | bfd *abfd; | |
1420 | { | |
1421 | file_ptr sofar; | |
1422 | asection *sec; | |
1423 | bfd_vma text, data, bss; | |
1424 | bfd_vma text_low, data_low; | |
1425 | int text_align, data_align, other_align; | |
1426 | file_ptr text_ptr, data_ptr, other_ptr; | |
45a78ebb | 1427 | asection *bss_sec; |
7389debf | 1428 | asymbol **sym_ptr_ptr; |
b6e7553c FF |
1429 | |
1430 | if (abfd->output_has_begun == true) | |
1431 | return true; | |
1432 | ||
45a78ebb ILT |
1433 | /* Make sure we have a section to hold uninitialized data. */ |
1434 | bss_sec = bfd_get_section_by_name (abfd, NLM_UNINITIALIZED_DATA_NAME); | |
1435 | if (bss_sec == NULL) | |
1436 | { | |
1437 | if (! add_bfd_section (abfd, NLM_UNINITIALIZED_DATA_NAME, | |
1438 | (file_ptr) 0, (bfd_size_type) 0, | |
1439 | SEC_ALLOC)) | |
1440 | return false; | |
1441 | bss_sec = bfd_get_section_by_name (abfd, NLM_UNINITIALIZED_DATA_NAME); | |
1442 | } | |
1443 | ||
b6e7553c FF |
1444 | abfd->output_has_begun = true; |
1445 | ||
1446 | /* The fixed header. */ | |
1447 | sofar = sizeof (Nlm_External_Fixed_Header); | |
1448 | ||
1449 | /* The variable header. */ | |
1450 | sofar += (sizeof (nlm_variable_header (abfd)->descriptionLength) | |
1451 | + nlm_variable_header (abfd) -> descriptionLength + 1 | |
1452 | + NLM_TARGET_LONG_SIZE /* stackSize */ | |
1453 | + NLM_TARGET_LONG_SIZE /* reserved */ | |
1454 | + sizeof (nlm_variable_header (abfd) -> oldThreadName) | |
1455 | + sizeof (nlm_variable_header (abfd) -> screenNameLength) | |
1456 | + nlm_variable_header (abfd) -> screenNameLength + 1 | |
1457 | + sizeof (nlm_variable_header (abfd) -> threadNameLength) | |
1458 | + nlm_variable_header (abfd) -> threadNameLength + 1); | |
1459 | ||
1460 | /* The auxiliary headers. */ | |
1461 | if (find_nonzero ((PTR) nlm_version_header (abfd), | |
1462 | sizeof (Nlm_Internal_Version_Header))) | |
1463 | sofar += sizeof (Nlm_External_Version_Header); | |
1464 | if (find_nonzero ((PTR) nlm_extended_header (abfd), | |
1465 | sizeof (Nlm_Internal_Extended_Header))) | |
1466 | sofar += sizeof (Nlm_External_Extended_Header); | |
1467 | if (find_nonzero ((PTR) nlm_custom_header (abfd), | |
1468 | sizeof (Nlm_Internal_Custom_Header))) | |
1469 | sofar += sizeof (Nlm_External_Custom_Header); | |
1470 | if (find_nonzero ((PTR) nlm_copyright_header (abfd), | |
1471 | sizeof (Nlm_Internal_Copyright_Header))) | |
1472 | sofar += (sizeof (Nlm_External_Copyright_Header) | |
1473 | + nlm_copyright_header (abfd) -> copyrightMessageLength + 1); | |
1474 | ||
1475 | /* Compute the section file positions in two passes. First get the | |
1476 | sizes of the text and data sections, and then set the file | |
1477 | positions. This code aligns the sections in the file using the | |
1478 | same alignment restrictions that apply to the sections in memory; | |
1479 | this may not be necessary. */ | |
1480 | text = 0; | |
1481 | text_low = (bfd_vma) -1; | |
1482 | text_align = 0; | |
1483 | data = 0; | |
1484 | data_low = (bfd_vma) -1; | |
1485 | data_align = 0; | |
1486 | bss = 0; | |
1487 | other_align = 0; | |
1488 | for (sec = abfd->sections; sec != (asection *) NULL; sec = sec->next) | |
1489 | { | |
1490 | flagword f; | |
1491 | ||
1492 | sec->_raw_size = BFD_ALIGN (sec->_raw_size, 1 << sec->alignment_power); | |
1493 | ||
1494 | f = bfd_get_section_flags (abfd, sec); | |
1495 | if (f & SEC_CODE) | |
1496 | { | |
1497 | text += sec->_raw_size; | |
1498 | if (bfd_get_section_vma (abfd, sec) < text_low) | |
1499 | text_low = bfd_get_section_vma (abfd, sec); | |
1500 | if (sec->alignment_power > text_align) | |
1501 | text_align = sec->alignment_power; | |
1502 | } | |
1503 | else if (f & SEC_DATA) | |
1504 | { | |
1505 | data += sec->_raw_size; | |
1506 | if (bfd_get_section_vma (abfd, sec) < data_low) | |
1507 | data_low = bfd_get_section_vma (abfd, sec); | |
1508 | if (sec->alignment_power > data_align) | |
1509 | data_align = sec->alignment_power; | |
1510 | } | |
1511 | else if (f & SEC_HAS_CONTENTS) | |
1512 | { | |
1513 | if (sec->alignment_power > other_align) | |
1514 | other_align = sec->alignment_power; | |
1515 | } | |
1516 | else if (f & SEC_ALLOC) | |
1517 | bss += sec->_raw_size; | |
1518 | } | |
1519 | ||
1520 | nlm_set_text_low (abfd, text_low); | |
1521 | nlm_set_data_low (abfd, data_low); | |
1522 | ||
1523 | text_ptr = BFD_ALIGN (sofar, 1 << text_align); | |
1524 | data_ptr = BFD_ALIGN (text_ptr + text, 1 << data_align); | |
1525 | other_ptr = BFD_ALIGN (data_ptr + data, 1 << other_align); | |
1526 | ||
1527 | /* Fill in some fields in the header for which we now have the | |
1528 | information. */ | |
1529 | nlm_fixed_header (abfd)->codeImageOffset = text_ptr; | |
1530 | nlm_fixed_header (abfd)->codeImageSize = text; | |
1531 | nlm_fixed_header (abfd)->dataImageOffset = data_ptr; | |
1532 | nlm_fixed_header (abfd)->dataImageSize = data; | |
1533 | nlm_fixed_header (abfd)->uninitializedDataSize = bss; | |
1534 | ||
1535 | for (sec = abfd->sections; sec != (asection *) NULL; sec = sec->next) | |
1536 | { | |
1537 | flagword f; | |
1538 | ||
1539 | f = bfd_get_section_flags (abfd, sec); | |
1540 | ||
1541 | if (f & SEC_CODE) | |
1542 | { | |
1543 | sec->filepos = text_ptr; | |
1544 | text_ptr += sec->_raw_size; | |
1545 | } | |
1546 | else if (f & SEC_DATA) | |
1547 | { | |
1548 | sec->filepos = data_ptr; | |
1549 | data_ptr += sec->_raw_size; | |
1550 | } | |
1551 | else if (f & SEC_HAS_CONTENTS) | |
1552 | { | |
1553 | sec->filepos = other_ptr; | |
1554 | other_ptr += sec->_raw_size; | |
1555 | } | |
1556 | } | |
1557 | ||
1558 | nlm_fixed_header (abfd)->relocationFixupOffset = other_ptr; | |
1559 | ||
7389debf ILT |
1560 | /* Move all common symbols into the .bss section. */ |
1561 | ||
1562 | sym_ptr_ptr = bfd_get_outsymbols (abfd); | |
1563 | if (sym_ptr_ptr != NULL) | |
1564 | { | |
1565 | asymbol **sym_end; | |
7389debf ILT |
1566 | bfd_vma add; |
1567 | ||
7389debf ILT |
1568 | sym_end = sym_ptr_ptr + bfd_get_symcount (abfd); |
1569 | add = 0; | |
1570 | for (; sym_ptr_ptr < sym_end; sym_ptr_ptr++) | |
1571 | { | |
1572 | asymbol *sym; | |
1573 | bfd_vma size; | |
1574 | ||
1575 | sym = *sym_ptr_ptr; | |
1576 | ||
1577 | if (! bfd_is_com_section (bfd_get_section (sym))) | |
1578 | continue; | |
1579 | ||
1580 | /* Put the common symbol in the .bss section, and increase | |
1581 | the size of the .bss section by the size of the common | |
1582 | symbol (which is the old value of the symbol). */ | |
1583 | sym->section = bss_sec; | |
1584 | size = sym->value; | |
1585 | sym->value = bss_sec->_raw_size + add; | |
1586 | add += size; | |
1587 | add = BFD_ALIGN (add, 1 << bss_sec->alignment_power); | |
1588 | } | |
1589 | nlm_fixed_header (abfd)->uninitializedDataSize += add; | |
1590 | bss_sec->_raw_size += add; | |
1591 | } | |
1592 | ||
b6e7553c FF |
1593 | return true; |
1594 | } | |
1595 | ||
1596 | /* Set the contents of a section. To do this we need to know where | |
1597 | the section is going to be located in the output file. That means | |
1598 | that the sizes of all the sections must be set, and all the | |
1599 | variable size header information must be known. */ | |
1600 | ||
1601 | boolean | |
1602 | nlm_set_section_contents (abfd, section, location, offset, count) | |
1603 | bfd *abfd; | |
1604 | asection *section; | |
1605 | PTR location; | |
1606 | file_ptr offset; | |
1607 | bfd_size_type count; | |
1608 | { | |
1609 | if (abfd->output_has_begun == false | |
1610 | && nlm_compute_section_file_positions (abfd) == false) | |
1611 | return false; | |
1612 | ||
1613 | if (count == 0) | |
1614 | return true; | |
1615 | ||
7389debf ILT |
1616 | /* i386 NetWare has a very restricted set of relocs. In order for |
1617 | objcopy to work, the NLM i386 backend needs a chance to rework | |
1618 | the section contents so that its set of relocs will work. If all | |
1619 | the relocs are already acceptable, this will not do anything. */ | |
1620 | if (section->reloc_count != 0) | |
1621 | { | |
45a78ebb ILT |
1622 | boolean (*mangle_relocs_func) PARAMS ((bfd *, asection *, PTR, |
1623 | bfd_vma, bfd_size_type)); | |
7389debf ILT |
1624 | |
1625 | mangle_relocs_func = nlm_mangle_relocs_func (abfd); | |
1626 | if (mangle_relocs_func != NULL) | |
1627 | { | |
1628 | if (! (*mangle_relocs_func) (abfd, section, location, | |
1629 | (bfd_vma) offset, count)) | |
1630 | return false; | |
1631 | } | |
1632 | } | |
1633 | ||
b6e7553c FF |
1634 | if (bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET) != 0 |
1635 | || bfd_write (location, 1, count, abfd) != count) | |
1636 | { | |
1637 | bfd_error = system_call_error; | |
1638 | return false; | |
1639 | } | |
1640 | ||
1641 | return true; | |
1642 | } | |
1643 | ||
1644 | /* We need to sort a list of relocs associated with sections when we | |
1645 | write out the external relocs. */ | |
1646 | ||
1647 | struct reloc_and_sec | |
1648 | { | |
1649 | arelent *rel; | |
1650 | asection *sec; | |
1651 | }; | |
1652 | ||
1653 | static int | |
1654 | nlm_external_reloc_compare (p1, p2) | |
1655 | const void *p1; | |
1656 | const void *p2; | |
1657 | { | |
1658 | const struct reloc_and_sec *r1 = (const struct reloc_and_sec *) p1; | |
1659 | const struct reloc_and_sec *r2 = (const struct reloc_and_sec *) p2; | |
1660 | ||
1661 | return strcmp ((*r1->rel->sym_ptr_ptr)->name, | |
1662 | (*r2->rel->sym_ptr_ptr)->name); | |
1663 | } | |
1664 | ||
1665 | /* Write out an NLM file. We write out the information in this order: | |
1666 | fixed header | |
1667 | variable header | |
1668 | auxiliary headers | |
1669 | code sections | |
1670 | data sections | |
1671 | other sections (custom data, messages, help, shared NLM, RPC, | |
1672 | module dependencies) | |
1673 | relocation fixups | |
1674 | external references (imports) | |
1675 | public symbols (exports) | |
1676 | debugging records | |
1677 | This is similar to the order used by the NetWare tools; the | |
1678 | difference is that NetWare puts the sections other than code, data | |
1679 | and custom data at the end of the NLM. It is convenient for us to | |
1680 | know where the sections are going to be before worrying about the | |
1681 | size of the other information. | |
1682 | ||
1683 | By the time this function is called, all the section data should | |
1684 | have been output using set_section_contents. Note that custom | |
1685 | data, the message file, the help file, the shared NLM file, the RPC | |
1686 | data, and the module dependencies are all considered to be | |
1687 | sections; the caller is responsible for filling in the offset and | |
1688 | length fields in the NLM headers. The relocation fixups and | |
1689 | imports are both obtained from the list of relocs attached to each | |
1690 | section. The exports and debugging records are obtained from the | |
1691 | list of outsymbols. */ | |
1692 | ||
1693 | boolean | |
1694 | nlm_write_object_contents (abfd) | |
1695 | bfd *abfd; | |
1696 | { | |
1697 | Nlm_External_Fixed_Header fixed_header; | |
1698 | asection *sec; | |
1699 | boolean (*write_reloc_func) PARAMS ((bfd *, asection *, arelent *)); | |
1700 | bfd_size_type external_reloc_count, internal_reloc_count, i, c; | |
1701 | struct reloc_and_sec *external_relocs; | |
1702 | asymbol **sym_ptr_ptr; | |
45a78ebb | 1703 | file_ptr last; |
b6e7553c FF |
1704 | |
1705 | if (abfd->output_has_begun == false | |
1706 | && nlm_compute_section_file_positions (abfd) == false) | |
1707 | return false; | |
1708 | ||
1709 | /* Write out the variable length headers. */ | |
1710 | if (bfd_seek (abfd, sizeof (Nlm_External_Fixed_Header), SEEK_SET) != 0) | |
1711 | { | |
1712 | bfd_error = system_call_error; | |
1713 | return false; | |
1714 | } | |
1715 | if (nlm_swap_variable_header_out (abfd) == false | |
1716 | || nlm_swap_auxiliary_headers_out (abfd) == false) | |
1717 | { | |
1718 | bfd_error = system_call_error; | |
1719 | return false; | |
1720 | } | |
1721 | ||
1722 | /* A weak check on whether the section file positions were | |
1723 | reasonable. */ | |
1724 | if (bfd_tell (abfd) > nlm_fixed_header (abfd)->codeImageOffset) | |
1725 | { | |
1726 | bfd_error = invalid_operation; | |
1727 | return false; | |
1728 | } | |
1729 | ||
1730 | /* Advance to the relocs. */ | |
1731 | if (bfd_seek (abfd, nlm_fixed_header (abfd)->relocationFixupOffset, | |
1732 | SEEK_SET) != 0) | |
1733 | { | |
1734 | bfd_error = system_call_error; | |
1735 | return false; | |
1736 | } | |
1737 | ||
1738 | /* The format of the relocation entries is dependent upon the | |
1739 | particular target. We use an external routine to write the reloc | |
1740 | out. */ | |
1741 | write_reloc_func = nlm_write_reloc_func (abfd); | |
1742 | ||
1743 | /* Write out the internal relocation fixups. While we're looping | |
1744 | over the relocs, we also count the external relocs, which is | |
1745 | needed when they are written out below. */ | |
1746 | internal_reloc_count = 0; | |
1747 | external_reloc_count = 0; | |
1748 | for (sec = abfd->sections; sec != (asection *) NULL; sec = sec->next) | |
1749 | { | |
1750 | arelent **rel_ptr_ptr, **rel_end; | |
1751 | ||
1752 | if (sec->reloc_count == 0) | |
1753 | continue; | |
1754 | ||
1755 | /* We can only represent relocs within a code or data | |
1756 | section. */ | |
1757 | if ((bfd_get_section_flags (abfd, sec) & (SEC_CODE | SEC_DATA)) == 0) | |
1758 | { | |
1759 | bfd_error = invalid_operation; | |
1760 | return false; | |
1761 | } | |
1762 | ||
1763 | /* We need to know how to write out relocs. */ | |
1764 | if (write_reloc_func == NULL) | |
1765 | { | |
1766 | bfd_error = invalid_operation; | |
1767 | return false; | |
1768 | } | |
1769 | ||
1770 | rel_ptr_ptr = sec->orelocation; | |
1771 | rel_end = rel_ptr_ptr + sec->reloc_count; | |
1772 | for (; rel_ptr_ptr < rel_end; rel_ptr_ptr++) | |
1773 | { | |
1774 | arelent *rel; | |
1775 | asymbol *sym; | |
1776 | ||
1777 | rel = *rel_ptr_ptr; | |
1778 | sym = *rel->sym_ptr_ptr; | |
1779 | ||
7389debf | 1780 | if (bfd_get_section (sym) != &bfd_und_section) |
b6e7553c FF |
1781 | { |
1782 | ++internal_reloc_count; | |
1783 | if ((*write_reloc_func) (abfd, sec, rel) == false) | |
1784 | return false; | |
1785 | } | |
1786 | else | |
1787 | ++external_reloc_count; | |
1788 | } | |
1789 | } | |
1790 | nlm_fixed_header (abfd)->numberOfRelocationFixups = internal_reloc_count; | |
1791 | ||
1792 | /* Write out the imports (relocs against external symbols). These | |
1793 | are output as a symbol name followed by all the relocs for that | |
1794 | symbol, so we must first gather together all the relocs against | |
1795 | external symbols and sort them. */ | |
1796 | external_relocs = | |
1797 | (struct reloc_and_sec *) bfd_alloc (abfd, | |
1798 | (external_reloc_count | |
1799 | * sizeof (struct reloc_and_sec))); | |
1800 | if (external_relocs == (struct reloc_and_sec *) NULL) | |
1801 | { | |
1802 | bfd_error = no_memory; | |
1803 | return false; | |
1804 | } | |
1805 | i = 0; | |
1806 | for (sec = abfd->sections; sec != (asection *) NULL; sec = sec->next) | |
1807 | { | |
1808 | arelent **rel_ptr_ptr, **rel_end; | |
1809 | ||
1810 | if (sec->reloc_count == 0) | |
1811 | continue; | |
1812 | ||
1813 | rel_ptr_ptr = sec->orelocation; | |
1814 | rel_end = rel_ptr_ptr + sec->reloc_count; | |
1815 | for (; rel_ptr_ptr < rel_end; rel_ptr_ptr++) | |
1816 | { | |
1817 | arelent *rel; | |
1818 | asymbol *sym; | |
1819 | ||
1820 | rel = *rel_ptr_ptr; | |
1821 | sym = *rel->sym_ptr_ptr; | |
1822 | ||
7389debf | 1823 | if (bfd_get_section (sym) != &bfd_und_section) |
b6e7553c FF |
1824 | continue; |
1825 | ||
1826 | external_relocs[i].rel = rel; | |
1827 | external_relocs[i].sec = sec; | |
1828 | ++i; | |
1829 | } | |
1830 | } | |
1831 | ||
1832 | BFD_ASSERT (i == external_reloc_count); | |
1833 | ||
1834 | /* Sort the external relocs by name. */ | |
1835 | qsort (external_relocs, external_reloc_count, | |
1836 | sizeof (struct reloc_and_sec), nlm_external_reloc_compare); | |
1837 | ||
1838 | /* Write out the external relocs. */ | |
1839 | nlm_fixed_header (abfd)->externalReferencesOffset = bfd_tell (abfd); | |
1840 | c = 0; | |
1841 | i = 0; | |
1842 | while (i < external_reloc_count) | |
1843 | { | |
1844 | arelent *rel; | |
1845 | asymbol *sym; | |
1846 | bfd_byte len; | |
7389debf | 1847 | bfd_size_type j, cnt; |
b6e7553c FF |
1848 | bfd_byte temp[NLM_TARGET_LONG_SIZE]; |
1849 | ||
1850 | ++c; | |
1851 | ||
1852 | rel = external_relocs[i].rel; | |
1853 | sym = *rel->sym_ptr_ptr; | |
1854 | ||
1855 | len = strlen (sym->name); | |
1856 | if ((bfd_write (&len, sizeof (bfd_byte), 1, abfd) | |
1857 | != sizeof (bfd_byte)) | |
1858 | || bfd_write (sym->name, len, 1, abfd) != len) | |
1859 | { | |
1860 | bfd_error = system_call_error; | |
1861 | return false; | |
1862 | } | |
1863 | ||
1864 | cnt = 0; | |
7389debf ILT |
1865 | for (j = i; |
1866 | (j < external_reloc_count | |
1867 | && *external_relocs[j].rel->sym_ptr_ptr == sym); | |
1868 | j++) | |
b6e7553c FF |
1869 | ++cnt; |
1870 | ||
1871 | put_word (abfd, (bfd_vma) cnt, temp); | |
1872 | if (bfd_write (temp, sizeof (temp), 1, abfd) != sizeof (temp)) | |
1873 | { | |
1874 | bfd_error = system_call_error; | |
1875 | return false; | |
1876 | } | |
1877 | ||
1878 | while (cnt-- != 0) | |
1879 | { | |
1880 | if ((*write_reloc_func) (abfd, external_relocs[i].sec, | |
1881 | external_relocs[i].rel) == false) | |
1882 | return false; | |
1883 | ++i; | |
1884 | } | |
1885 | } | |
1886 | nlm_fixed_header (abfd)->numberOfExternalReferences = c; | |
1887 | ||
1888 | /* Write out the public symbols (exports). */ | |
1889 | sym_ptr_ptr = bfd_get_outsymbols (abfd); | |
1890 | if (sym_ptr_ptr != (asymbol **) NULL) | |
1891 | { | |
1892 | asymbol **sym_end; | |
1893 | ||
1894 | nlm_fixed_header (abfd)->publicsOffset = bfd_tell (abfd); | |
1895 | c = 0; | |
1896 | sym_end = sym_ptr_ptr + bfd_get_symcount (abfd); | |
1897 | for (; sym_ptr_ptr < sym_end; sym_ptr_ptr++) | |
1898 | { | |
1899 | asymbol *sym; | |
1900 | bfd_byte len; | |
1901 | bfd_vma offset; | |
b6e7553c FF |
1902 | bfd_byte temp[NLM_TARGET_LONG_SIZE]; |
1903 | ||
1904 | sym = *sym_ptr_ptr; | |
1905 | ||
7389debf ILT |
1906 | if ((sym->flags & (BSF_EXPORT | BSF_GLOBAL)) == 0 |
1907 | || bfd_get_section (sym) == &bfd_und_section) | |
b6e7553c FF |
1908 | continue; |
1909 | ||
1910 | ++c; | |
c3e964b9 | 1911 | |
b6e7553c FF |
1912 | len = strlen (sym->name); |
1913 | if ((bfd_write (&len, sizeof (bfd_byte), 1, abfd) | |
1914 | != sizeof (bfd_byte)) | |
1915 | || bfd_write (sym->name, len, 1, abfd) != len) | |
1916 | { | |
1917 | bfd_error = system_call_error; | |
1918 | return false; | |
1919 | } | |
1920 | ||
1921 | offset = bfd_asymbol_value (sym); | |
1922 | sec = sym->section; | |
1923 | if (sec->flags & SEC_CODE) | |
1924 | { | |
1925 | offset -= nlm_get_text_low (abfd); | |
1926 | offset |= NLM_HIBIT; | |
1927 | } | |
7389debf | 1928 | else if (sec->flags & (SEC_DATA | SEC_ALLOC)) |
b6e7553c | 1929 | { |
7389debf | 1930 | /* SEC_ALLOC is for the .bss section. */ |
b6e7553c FF |
1931 | offset -= nlm_get_data_low (abfd); |
1932 | } | |
1933 | else | |
1934 | { | |
1935 | /* We can't handle an exported symbol that is not in the | |
1936 | code or data segment. */ | |
1937 | bfd_error = invalid_operation; | |
1938 | return false; | |
1939 | } | |
1940 | ||
1941 | put_word (abfd, offset, temp); | |
1942 | if (bfd_write (temp, sizeof (temp), 1, abfd) != sizeof (temp)) | |
1943 | { | |
1944 | bfd_error = system_call_error; | |
1945 | return false; | |
1946 | } | |
1947 | } | |
1948 | nlm_fixed_header (abfd)->numberOfPublics = c; | |
1949 | ||
45a78ebb ILT |
1950 | /* Write out the debugging records. The NLM conversion program |
1951 | wants to be able to inhibit this, so as a special hack if | |
1952 | debugInfoOffset is set to -1 we don't write any debugging | |
1953 | information. This can not be handled by fiddling with the | |
1954 | symbol table, because exported symbols appear in both the | |
1955 | exported symbol list and the debugging information. */ | |
1956 | if (nlm_fixed_header (abfd)->debugInfoOffset == (file_ptr) -1) | |
b6e7553c | 1957 | { |
45a78ebb ILT |
1958 | nlm_fixed_header (abfd)->debugInfoOffset = 0; |
1959 | nlm_fixed_header (abfd)->numberOfDebugRecords = 0; | |
1960 | } | |
1961 | else | |
1962 | { | |
1963 | nlm_fixed_header (abfd)->debugInfoOffset = bfd_tell (abfd); | |
1964 | c = 0; | |
1965 | sym_ptr_ptr = bfd_get_outsymbols (abfd); | |
1966 | sym_end = sym_ptr_ptr + bfd_get_symcount (abfd); | |
1967 | for (; sym_ptr_ptr < sym_end; sym_ptr_ptr++) | |
b6e7553c | 1968 | { |
45a78ebb ILT |
1969 | asymbol *sym; |
1970 | bfd_byte type, len; | |
1971 | bfd_vma offset; | |
1972 | bfd_byte temp[NLM_TARGET_LONG_SIZE]; | |
1973 | ||
1974 | sym = *sym_ptr_ptr; | |
1975 | ||
1976 | /* The NLM notion of a debugging symbol is actually what | |
1977 | BFD calls a local or global symbol. What BFD calls a | |
1978 | debugging symbol NLM does not understand at all. */ | |
1979 | if ((sym->flags & (BSF_LOCAL | BSF_GLOBAL | BSF_EXPORT)) == 0 | |
1980 | || (sym->flags & BSF_DEBUGGING) != 0 | |
1981 | || bfd_get_section (sym) == &bfd_und_section) | |
1982 | continue; | |
1983 | ||
1984 | ++c; | |
1985 | ||
1986 | offset = bfd_asymbol_value (sym); | |
1987 | sec = sym->section; | |
1988 | if (sec->flags & SEC_CODE) | |
1989 | { | |
1990 | offset -= nlm_get_text_low (abfd); | |
1991 | type = 1; | |
1992 | } | |
1993 | else if (sec->flags & (SEC_DATA | SEC_ALLOC)) | |
1994 | { | |
1995 | offset -= nlm_get_data_low (abfd); | |
1996 | type = 0; | |
1997 | } | |
1998 | else | |
1999 | type = 2; | |
b6e7553c | 2000 | |
45a78ebb ILT |
2001 | /* The type is 0 for data, 1 for code, 2 for absolute. */ |
2002 | if (bfd_write (&type, sizeof (bfd_byte), 1, abfd) | |
2003 | != sizeof (bfd_byte)) | |
2004 | { | |
2005 | bfd_error = system_call_error; | |
2006 | return false; | |
2007 | } | |
b6e7553c | 2008 | |
45a78ebb ILT |
2009 | put_word (abfd, offset, temp); |
2010 | if (bfd_write (temp, sizeof (temp), 1, abfd) != sizeof (temp)) | |
2011 | { | |
2012 | bfd_error = system_call_error; | |
2013 | return false; | |
2014 | } | |
b6e7553c | 2015 | |
45a78ebb ILT |
2016 | len = strlen (sym->name); |
2017 | if ((bfd_write (&len, sizeof (bfd_byte), 1, abfd) | |
2018 | != sizeof (bfd_byte)) | |
2019 | || bfd_write (sym->name, len, 1, abfd) != len) | |
b6e7553c | 2020 | { |
45a78ebb ILT |
2021 | bfd_error = system_call_error; |
2022 | return false; | |
b6e7553c | 2023 | } |
45a78ebb ILT |
2024 | } |
2025 | nlm_fixed_header (abfd)->numberOfDebugRecords = c; | |
2026 | } | |
b6e7553c FF |
2027 | } |
2028 | ||
45a78ebb ILT |
2029 | /* NLMLINK fills in offset values even if there is no data, so we do |
2030 | the same. */ | |
2031 | last = bfd_tell (abfd); | |
2032 | if (nlm_fixed_header (abfd)->codeImageOffset == 0) | |
2033 | nlm_fixed_header (abfd)->codeImageOffset = last; | |
2034 | if (nlm_fixed_header (abfd)->dataImageOffset == 0) | |
2035 | nlm_fixed_header (abfd)->dataImageOffset = last; | |
2036 | if (nlm_fixed_header (abfd)->customDataOffset == 0) | |
2037 | nlm_fixed_header (abfd)->customDataOffset = last; | |
2038 | if (nlm_fixed_header (abfd)->moduleDependencyOffset == 0) | |
2039 | nlm_fixed_header (abfd)->moduleDependencyOffset = last; | |
2040 | if (nlm_fixed_header (abfd)->relocationFixupOffset == 0) | |
2041 | nlm_fixed_header (abfd)->relocationFixupOffset = last; | |
2042 | if (nlm_fixed_header (abfd)->externalReferencesOffset == 0) | |
2043 | nlm_fixed_header (abfd)->externalReferencesOffset = last; | |
2044 | if (nlm_fixed_header (abfd)->publicsOffset == 0) | |
2045 | nlm_fixed_header (abfd)->publicsOffset = last; | |
2046 | if (nlm_fixed_header (abfd)->debugInfoOffset == 0) | |
2047 | nlm_fixed_header (abfd)->debugInfoOffset = last; | |
2048 | ||
b6e7553c FF |
2049 | /* At this point everything has been written out except the fixed |
2050 | header. */ | |
2051 | memcpy (nlm_fixed_header (abfd)->signature, NLM_SIGNATURE, | |
2052 | NLM_SIGNATURE_SIZE); | |
2053 | nlm_fixed_header (abfd)->version = NLM_HEADER_VERSION; | |
2054 | nlm_fixed_header (abfd)->codeStartOffset = | |
45a78ebb ILT |
2055 | (bfd_get_start_address (abfd) |
2056 | - nlm_get_text_low (abfd)); | |
b6e7553c FF |
2057 | |
2058 | /* We have no convenient way for the caller to pass in the exit | |
2059 | procedure or the check unload procedure, so the caller must set | |
2060 | the values in the header to the values of the symbols. */ | |
45a78ebb | 2061 | nlm_fixed_header (abfd)->exitProcedureOffset -= nlm_get_text_low (abfd); |
b6e7553c FF |
2062 | if (nlm_fixed_header (abfd)->checkUnloadProcedureOffset != 0) |
2063 | nlm_fixed_header (abfd)->checkUnloadProcedureOffset -= | |
2064 | nlm_get_text_low (abfd); | |
2065 | ||
2066 | nlm_swap_fixed_header_out (abfd, nlm_fixed_header (abfd), &fixed_header); | |
2067 | if (bfd_seek (abfd, 0, SEEK_SET) != 0 | |
2068 | || (bfd_write (&fixed_header, sizeof fixed_header, 1, abfd) | |
2069 | != sizeof fixed_header)) | |
2070 | { | |
2071 | bfd_error = system_call_error; | |
2072 | return false; | |
2073 | } | |
2074 | ||
2075 | return true; | |
2076 | } |