Commit | Line | Data |
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252b5132 | 1 | /* NLM (NetWare Loadable Module) executable support for BFD. |
2571583a | 2 | Copyright (C) 1993-2017 Free Software Foundation, Inc. |
252b5132 RH |
3 | |
4 | Written by Fred Fish @ Cygnus Support, using ELF support as the | |
5 | template. | |
6 | ||
9e12c7db | 7 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 8 | |
9e12c7db NC |
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 | |
cd123cb7 | 11 | the Free Software Foundation; either version 3 of the License, or |
9e12c7db | 12 | (at your option) any later version. |
252b5132 | 13 | |
9e12c7db NC |
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. | |
252b5132 | 18 | |
9e12c7db NC |
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 | |
cd123cb7 NC |
21 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
22 | MA 02110-1301, USA. */ | |
252b5132 | 23 | |
252b5132 | 24 | #include "sysdep.h" |
3db64b00 | 25 | #include "bfd.h" |
252b5132 RH |
26 | #include "libbfd.h" |
27 | #include "libnlm.h" | |
28 | ||
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 | ||
7920ce38 NC |
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 | #define Nlm_External_Cygnus_Ext_Header NlmNAME (External_Cygnus_Ext_Header) | |
42 | ||
43 | #define nlm_symbol_type nlmNAME (symbol_type) | |
44 | #define nlm_get_symtab_upper_bound nlmNAME (get_symtab_upper_bound) | |
45 | #define nlm_canonicalize_symtab nlmNAME (canonicalize_symtab) | |
46 | #define nlm_make_empty_symbol nlmNAME (make_empty_symbol) | |
47 | #define nlm_print_symbol nlmNAME (print_symbol) | |
48 | #define nlm_get_symbol_info nlmNAME (get_symbol_info) | |
49 | #define nlm_get_reloc_upper_bound nlmNAME (get_reloc_upper_bound) | |
50 | #define nlm_canonicalize_reloc nlmNAME (canonicalize_reloc) | |
51 | #define nlm_object_p nlmNAME (object_p) | |
52 | #define nlm_set_section_contents nlmNAME (set_section_contents) | |
53 | #define nlm_write_object_contents nlmNAME (write_object_contents) | |
252b5132 RH |
54 | |
55 | #define nlm_swap_fixed_header_in(abfd,src,dst) \ | |
7920ce38 | 56 | (nlm_swap_fixed_header_in_func (abfd)) (abfd, src, dst) |
252b5132 | 57 | #define nlm_swap_fixed_header_out(abfd,src,dst) \ |
7920ce38 | 58 | (nlm_swap_fixed_header_out_func (abfd)) (abfd, src, dst) |
252b5132 RH |
59 | |
60 | /* Should perhaps use put_offset, put_word, etc. For now, the two versions | |
61 | can be handled by explicitly specifying 32 bits or "the long type". */ | |
62 | #if ARCH_SIZE == 64 | |
dc810e39 AM |
63 | #define put_word H_PUT_64 |
64 | #define get_word H_GET_64 | |
252b5132 RH |
65 | #endif |
66 | #if ARCH_SIZE == 32 | |
dc810e39 AM |
67 | #define put_word H_PUT_32 |
68 | #define get_word H_GET_32 | |
252b5132 RH |
69 | #endif |
70 | ||
252b5132 | 71 | /* Read and swap in the variable length header. All the fields must |
1518639e | 72 | exist in the NLM, and must exist in the order they are read here. */ |
252b5132 | 73 | |
b34976b6 | 74 | static bfd_boolean |
7920ce38 | 75 | nlm_swap_variable_header_in (bfd *abfd) |
252b5132 RH |
76 | { |
77 | unsigned char temp[NLM_TARGET_LONG_SIZE]; | |
dc810e39 | 78 | bfd_size_type amt; |
252b5132 | 79 | |
1518639e | 80 | /* Read the description length and text members. */ |
dc810e39 | 81 | amt = sizeof (nlm_variable_header (abfd)->descriptionLength); |
7920ce38 | 82 | if (bfd_bread ((void *) &nlm_variable_header (abfd)->descriptionLength, |
dc810e39 | 83 | amt, abfd) != amt) |
b34976b6 | 84 | return FALSE; |
dc810e39 | 85 | amt = nlm_variable_header (abfd)->descriptionLength + 1; |
7920ce38 | 86 | if (bfd_bread ((void *) nlm_variable_header (abfd)->descriptionText, |
dc810e39 | 87 | amt, abfd) != amt) |
b34976b6 | 88 | return FALSE; |
252b5132 | 89 | |
1518639e | 90 | /* Read and convert the stackSize field. */ |
dc810e39 | 91 | amt = sizeof (temp); |
7920ce38 | 92 | if (bfd_bread ((void *) temp, amt, abfd) != amt) |
b34976b6 | 93 | return FALSE; |
252b5132 RH |
94 | nlm_variable_header (abfd)->stackSize = get_word (abfd, (bfd_byte *) temp); |
95 | ||
1518639e | 96 | /* Read and convert the reserved field. */ |
dc810e39 | 97 | amt = sizeof (temp); |
7920ce38 | 98 | if (bfd_bread ((void *) temp, amt, abfd) != amt) |
b34976b6 | 99 | return FALSE; |
252b5132 RH |
100 | nlm_variable_header (abfd)->reserved = get_word (abfd, (bfd_byte *) temp); |
101 | ||
1518639e | 102 | /* Read the oldThreadName field. This field is a fixed length string. */ |
dc810e39 | 103 | amt = sizeof (nlm_variable_header (abfd)->oldThreadName); |
7920ce38 | 104 | if (bfd_bread ((void *) nlm_variable_header (abfd)->oldThreadName, |
dc810e39 | 105 | amt, abfd) != amt) |
b34976b6 | 106 | return FALSE; |
252b5132 | 107 | |
1518639e | 108 | /* Read the screen name length and text members. */ |
dc810e39 | 109 | amt = sizeof (nlm_variable_header (abfd)->screenNameLength); |
7920ce38 | 110 | if (bfd_bread ((void *) & nlm_variable_header (abfd)->screenNameLength, |
dc810e39 | 111 | amt, abfd) != amt) |
b34976b6 | 112 | return FALSE; |
dc810e39 | 113 | amt = nlm_variable_header (abfd)->screenNameLength + 1; |
7920ce38 | 114 | if (bfd_bread ((void *) nlm_variable_header (abfd)->screenName, |
dc810e39 | 115 | amt, abfd) != amt) |
b34976b6 | 116 | return FALSE; |
252b5132 | 117 | |
1518639e | 118 | /* Read the thread name length and text members. */ |
dc810e39 | 119 | amt = sizeof (nlm_variable_header (abfd)->threadNameLength); |
7920ce38 | 120 | if (bfd_bread ((void *) & nlm_variable_header (abfd)->threadNameLength, |
dc810e39 | 121 | amt, abfd) != amt) |
b34976b6 | 122 | return FALSE; |
dc810e39 | 123 | amt = nlm_variable_header (abfd)->threadNameLength + 1; |
7920ce38 | 124 | if (bfd_bread ((void *) nlm_variable_header (abfd)->threadName, |
dc810e39 | 125 | amt, abfd) != amt) |
b34976b6 AM |
126 | return FALSE; |
127 | return TRUE; | |
252b5132 RH |
128 | } |
129 | ||
7920ce38 | 130 | /* Add a section to the bfd. */ |
252b5132 | 131 | |
b34976b6 | 132 | static bfd_boolean |
7920ce38 NC |
133 | add_bfd_section (bfd *abfd, |
134 | char *name, | |
135 | file_ptr offset, | |
136 | bfd_size_type size, | |
137 | flagword flags) | |
252b5132 | 138 | { |
7920ce38 | 139 | asection *newsect; |
252b5132 | 140 | |
117ed4f8 | 141 | newsect = bfd_make_section_with_flags (abfd, name, flags); |
7920ce38 | 142 | if (newsect == NULL) |
b34976b6 | 143 | return FALSE; |
252b5132 | 144 | |
7920ce38 NC |
145 | newsect->vma = 0; /* NLM's are relocatable. */ |
146 | newsect->size = size; | |
147 | newsect->filepos = offset; | |
7920ce38 | 148 | newsect->alignment_power = bfd_log2 ((bfd_vma) 0); /* FIXME */ |
252b5132 | 149 | |
b34976b6 | 150 | return TRUE; |
252b5132 RH |
151 | } |
152 | ||
153 | /* Read and swap in the contents of all the auxiliary headers. Because of | |
154 | the braindead design, we have to do strcmps on strings of indeterminate | |
155 | length to figure out what each auxiliary header is. Even worse, we have | |
156 | no way of knowing how many auxiliary headers there are or where the end | |
157 | of the auxiliary headers are, except by finding something that doesn't | |
158 | look like a known auxiliary header. This means that the first new type | |
159 | of auxiliary header added will break all existing tools that don't | |
1518639e | 160 | recognize it. */ |
252b5132 | 161 | |
b34976b6 | 162 | static bfd_boolean |
7920ce38 | 163 | nlm_swap_auxiliary_headers_in (bfd *abfd) |
252b5132 RH |
164 | { |
165 | char tempstr[16]; | |
dc810e39 AM |
166 | file_ptr position; |
167 | bfd_size_type amt; | |
252b5132 RH |
168 | |
169 | for (;;) | |
170 | { | |
171 | position = bfd_tell (abfd); | |
dc810e39 | 172 | amt = sizeof (tempstr); |
7920ce38 | 173 | if (bfd_bread ((void *) tempstr, amt, abfd) != amt) |
b34976b6 | 174 | return FALSE; |
dc810e39 | 175 | if (bfd_seek (abfd, position, SEEK_SET) != 0) |
b34976b6 | 176 | return FALSE; |
0112cd26 | 177 | if (CONST_STRNEQ (tempstr, "VeRsIoN#")) |
252b5132 RH |
178 | { |
179 | Nlm_External_Version_Header thdr; | |
dc810e39 AM |
180 | |
181 | amt = sizeof (thdr); | |
7920ce38 | 182 | if (bfd_bread ((void *) &thdr, amt, abfd) != amt) |
b34976b6 | 183 | return FALSE; |
252b5132 RH |
184 | memcpy (nlm_version_header (abfd)->stamp, thdr.stamp, |
185 | sizeof (thdr.stamp)); | |
186 | nlm_version_header (abfd)->majorVersion = | |
187 | get_word (abfd, (bfd_byte *) thdr.majorVersion); | |
188 | nlm_version_header (abfd)->minorVersion = | |
189 | get_word (abfd, (bfd_byte *) thdr.minorVersion); | |
190 | nlm_version_header (abfd)->revision = | |
191 | get_word (abfd, (bfd_byte *) thdr.revision); | |
192 | nlm_version_header (abfd)->year = | |
193 | get_word (abfd, (bfd_byte *) thdr.year); | |
194 | nlm_version_header (abfd)->month = | |
195 | get_word (abfd, (bfd_byte *) thdr.month); | |
196 | nlm_version_header (abfd)->day = | |
197 | get_word (abfd, (bfd_byte *) thdr.day); | |
198 | } | |
0112cd26 | 199 | else if (CONST_STRNEQ (tempstr, "MeSsAgEs")) |
252b5132 RH |
200 | { |
201 | Nlm_External_Extended_Header thdr; | |
dc810e39 AM |
202 | |
203 | amt = sizeof (thdr); | |
7920ce38 | 204 | if (bfd_bread ((void *) &thdr, amt, abfd) != amt) |
b34976b6 | 205 | return FALSE; |
252b5132 RH |
206 | memcpy (nlm_extended_header (abfd)->stamp, thdr.stamp, |
207 | sizeof (thdr.stamp)); | |
208 | nlm_extended_header (abfd)->languageID = | |
209 | get_word (abfd, (bfd_byte *) thdr.languageID); | |
210 | nlm_extended_header (abfd)->messageFileOffset = | |
211 | get_word (abfd, (bfd_byte *) thdr.messageFileOffset); | |
212 | nlm_extended_header (abfd)->messageFileLength = | |
213 | get_word (abfd, (bfd_byte *) thdr.messageFileLength); | |
214 | nlm_extended_header (abfd)->messageCount = | |
215 | get_word (abfd, (bfd_byte *) thdr.messageCount); | |
216 | nlm_extended_header (abfd)->helpFileOffset = | |
217 | get_word (abfd, (bfd_byte *) thdr.helpFileOffset); | |
218 | nlm_extended_header (abfd)->helpFileLength = | |
219 | get_word (abfd, (bfd_byte *) thdr.helpFileLength); | |
220 | nlm_extended_header (abfd)->RPCDataOffset = | |
221 | get_word (abfd, (bfd_byte *) thdr.RPCDataOffset); | |
222 | nlm_extended_header (abfd)->RPCDataLength = | |
223 | get_word (abfd, (bfd_byte *) thdr.RPCDataLength); | |
224 | nlm_extended_header (abfd)->sharedCodeOffset = | |
225 | get_word (abfd, (bfd_byte *) thdr.sharedCodeOffset); | |
226 | nlm_extended_header (abfd)->sharedCodeLength = | |
227 | get_word (abfd, (bfd_byte *) thdr.sharedCodeLength); | |
228 | nlm_extended_header (abfd)->sharedDataOffset = | |
229 | get_word (abfd, (bfd_byte *) thdr.sharedDataOffset); | |
230 | nlm_extended_header (abfd)->sharedDataLength = | |
231 | get_word (abfd, (bfd_byte *) thdr.sharedDataLength); | |
232 | nlm_extended_header (abfd)->sharedRelocationFixupOffset = | |
233 | get_word (abfd, (bfd_byte *) thdr.sharedRelocationFixupOffset); | |
234 | nlm_extended_header (abfd)->sharedRelocationFixupCount = | |
235 | get_word (abfd, (bfd_byte *) thdr.sharedRelocationFixupCount); | |
236 | nlm_extended_header (abfd)->sharedExternalReferenceOffset = | |
237 | get_word (abfd, (bfd_byte *) thdr.sharedExternalReferenceOffset); | |
238 | nlm_extended_header (abfd)->sharedExternalReferenceCount = | |
239 | get_word (abfd, (bfd_byte *) thdr.sharedExternalReferenceCount); | |
240 | nlm_extended_header (abfd)->sharedPublicsOffset = | |
241 | get_word (abfd, (bfd_byte *) thdr.sharedPublicsOffset); | |
242 | nlm_extended_header (abfd)->sharedPublicsCount = | |
243 | get_word (abfd, (bfd_byte *) thdr.sharedPublicsCount); | |
244 | nlm_extended_header (abfd)->sharedDebugRecordOffset = | |
245 | get_word (abfd, (bfd_byte *) thdr.sharedDebugRecordOffset); | |
246 | nlm_extended_header (abfd)->sharedDebugRecordCount = | |
247 | get_word (abfd, (bfd_byte *) thdr.sharedDebugRecordCount); | |
248 | nlm_extended_header (abfd)->SharedInitializationOffset = | |
249 | get_word (abfd, (bfd_byte *) thdr.sharedInitializationOffset); | |
250 | nlm_extended_header (abfd)->SharedExitProcedureOffset = | |
251 | get_word (abfd, (bfd_byte *) thdr.SharedExitProcedureOffset); | |
252 | nlm_extended_header (abfd)->productID = | |
253 | get_word (abfd, (bfd_byte *) thdr.productID); | |
254 | nlm_extended_header (abfd)->reserved0 = | |
255 | get_word (abfd, (bfd_byte *) thdr.reserved0); | |
256 | nlm_extended_header (abfd)->reserved1 = | |
257 | get_word (abfd, (bfd_byte *) thdr.reserved1); | |
258 | nlm_extended_header (abfd)->reserved2 = | |
259 | get_word (abfd, (bfd_byte *) thdr.reserved2); | |
260 | nlm_extended_header (abfd)->reserved3 = | |
261 | get_word (abfd, (bfd_byte *) thdr.reserved3); | |
262 | nlm_extended_header (abfd)->reserved4 = | |
263 | get_word (abfd, (bfd_byte *) thdr.reserved4); | |
264 | nlm_extended_header (abfd)->reserved5 = | |
265 | get_word (abfd, (bfd_byte *) thdr.reserved5); | |
266 | } | |
0112cd26 | 267 | else if (CONST_STRNEQ (tempstr, "CoPyRiGhT=")) |
252b5132 | 268 | { |
dc810e39 | 269 | amt = sizeof (nlm_copyright_header (abfd)->stamp); |
7920ce38 | 270 | if (bfd_bread ((void *) nlm_copyright_header (abfd)->stamp, |
dc810e39 | 271 | amt, abfd) != amt) |
b34976b6 | 272 | return FALSE; |
7920ce38 | 273 | if (bfd_bread ((void *) &(nlm_copyright_header (abfd) |
dc810e39 AM |
274 | ->copyrightMessageLength), |
275 | (bfd_size_type) 1, abfd) != 1) | |
b34976b6 | 276 | return FALSE; |
1518639e | 277 | /* The copyright message is a variable length string. */ |
dc810e39 | 278 | amt = nlm_copyright_header (abfd)->copyrightMessageLength + 1; |
7920ce38 | 279 | if (bfd_bread ((void *) nlm_copyright_header (abfd)->copyrightMessage, |
dc810e39 | 280 | amt, abfd) != amt) |
b34976b6 | 281 | return FALSE; |
252b5132 | 282 | } |
0112cd26 | 283 | else if (CONST_STRNEQ (tempstr, "CuStHeAd")) |
252b5132 RH |
284 | { |
285 | Nlm_External_Custom_Header thdr; | |
286 | bfd_size_type hdrLength; | |
287 | file_ptr dataOffset; | |
288 | bfd_size_type dataLength; | |
289 | char dataStamp[8]; | |
7920ce38 | 290 | void * hdr; |
252b5132 RH |
291 | |
292 | /* Read the stamp ("CuStHeAd"). */ | |
dc810e39 | 293 | amt = sizeof (thdr.stamp); |
7920ce38 | 294 | if (bfd_bread ((void *) thdr.stamp, amt, abfd) != amt) |
b34976b6 | 295 | return FALSE; |
252b5132 | 296 | /* Read the length of this custom header. */ |
dc810e39 | 297 | amt = sizeof (thdr.length); |
7920ce38 | 298 | if (bfd_bread ((void *) thdr.length, amt, abfd) != amt) |
b34976b6 | 299 | return FALSE; |
252b5132 RH |
300 | hdrLength = get_word (abfd, (bfd_byte *) thdr.length); |
301 | /* Read further fields if we have them. */ | |
302 | if (hdrLength < NLM_TARGET_LONG_SIZE) | |
303 | dataOffset = 0; | |
304 | else | |
305 | { | |
dc810e39 | 306 | amt = sizeof (thdr.dataOffset); |
7920ce38 | 307 | if (bfd_bread ((void *) thdr.dataOffset, amt, abfd) != amt) |
b34976b6 | 308 | return FALSE; |
252b5132 RH |
309 | dataOffset = get_word (abfd, (bfd_byte *) thdr.dataOffset); |
310 | } | |
311 | if (hdrLength < 2 * NLM_TARGET_LONG_SIZE) | |
312 | dataLength = 0; | |
313 | else | |
314 | { | |
dc810e39 | 315 | amt = sizeof (thdr.dataLength); |
7920ce38 | 316 | if (bfd_bread ((void *) thdr.dataLength, amt, abfd) != amt) |
b34976b6 | 317 | return FALSE; |
252b5132 RH |
318 | dataLength = get_word (abfd, (bfd_byte *) thdr.dataLength); |
319 | } | |
320 | if (hdrLength < 2 * NLM_TARGET_LONG_SIZE + 8) | |
321 | memset (dataStamp, 0, sizeof (dataStamp)); | |
322 | else | |
323 | { | |
dc810e39 | 324 | amt = sizeof (dataStamp); |
7920ce38 | 325 | if (bfd_bread ((void *) dataStamp, amt, abfd) != amt) |
b34976b6 | 326 | return FALSE; |
252b5132 RH |
327 | } |
328 | ||
329 | /* Read the rest of the header, if any. */ | |
330 | if (hdrLength <= 2 * NLM_TARGET_LONG_SIZE + 8) | |
331 | { | |
332 | hdr = NULL; | |
333 | hdrLength = 0; | |
334 | } | |
335 | else | |
336 | { | |
337 | hdrLength -= 2 * NLM_TARGET_LONG_SIZE + 8; | |
338 | hdr = bfd_alloc (abfd, hdrLength); | |
339 | if (hdr == NULL) | |
b34976b6 | 340 | return FALSE; |
dc810e39 | 341 | if (bfd_bread (hdr, hdrLength, abfd) != hdrLength) |
b34976b6 | 342 | return FALSE; |
252b5132 RH |
343 | } |
344 | ||
345 | /* If we have found a Cygnus header, process it. Otherwise, | |
346 | just save the associated data without trying to interpret | |
347 | it. */ | |
0112cd26 | 348 | if (CONST_STRNEQ (dataStamp, "CyGnUsEx")) |
252b5132 RH |
349 | { |
350 | file_ptr pos; | |
351 | bfd_byte *contents; | |
352 | bfd_byte *p, *pend; | |
353 | ||
8bdf0be1 NC |
354 | /* See PR 21840 for a reproducer. */ |
355 | if (hdrLength != 0 || hdr != NULL) | |
356 | return FALSE; | |
252b5132 RH |
357 | |
358 | pos = bfd_tell (abfd); | |
359 | if (bfd_seek (abfd, dataOffset, SEEK_SET) != 0) | |
b34976b6 | 360 | return FALSE; |
7920ce38 | 361 | contents = bfd_alloc (abfd, dataLength); |
252b5132 | 362 | if (contents == NULL) |
b34976b6 | 363 | return FALSE; |
dc810e39 | 364 | if (bfd_bread (contents, dataLength, abfd) != dataLength) |
b34976b6 | 365 | return FALSE; |
252b5132 | 366 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) |
b34976b6 | 367 | return FALSE; |
252b5132 | 368 | |
ea9986ff | 369 | LITMEMCPY (nlm_cygnus_ext_header (abfd), "CyGnUsEx"); |
252b5132 RH |
370 | nlm_cygnus_ext_header (abfd)->offset = dataOffset; |
371 | nlm_cygnus_ext_header (abfd)->length = dataLength; | |
372 | ||
373 | /* This data this header points to provides a list of | |
374 | the sections which were in the original object file | |
375 | which was converted to become an NLM. We locate | |
376 | those sections and add them to the BFD. Note that | |
377 | this is likely to create a second .text, .data and | |
378 | .bss section; retrieving the sections by name will | |
379 | get the actual NLM sections, which is what we want to | |
380 | happen. The sections from the original file, which | |
381 | may be subsets of the NLM section, can only be found | |
382 | using bfd_map_over_sections. */ | |
383 | p = contents; | |
384 | pend = p + dataLength; | |
385 | while (p < pend) | |
386 | { | |
387 | char *name; | |
388 | size_t l; | |
389 | file_ptr filepos; | |
390 | bfd_size_type size; | |
391 | asection *newsec; | |
392 | ||
393 | /* The format of this information is | |
394 | null terminated section name | |
395 | zeroes to adjust to 4 byte boundary | |
396 | 4 byte section data file pointer | |
7920ce38 | 397 | 4 byte section size. */ |
252b5132 RH |
398 | |
399 | name = (char *) p; | |
400 | l = strlen (name) + 1; | |
dc810e39 | 401 | l = (l + 3) &~ (size_t) 3; |
252b5132 | 402 | p += l; |
dc810e39 | 403 | filepos = H_GET_32 (abfd, p); |
252b5132 | 404 | p += 4; |
dc810e39 | 405 | size = H_GET_32 (abfd, p); |
252b5132 RH |
406 | p += 4; |
407 | ||
408 | newsec = bfd_make_section_anyway (abfd, name); | |
7920ce38 | 409 | if (newsec == NULL) |
b34976b6 | 410 | return FALSE; |
eea6121a | 411 | newsec->size = size; |
252b5132 RH |
412 | if (filepos != 0) |
413 | { | |
414 | newsec->filepos = filepos; | |
415 | newsec->flags |= SEC_HAS_CONTENTS; | |
416 | } | |
417 | } | |
418 | } | |
419 | else | |
420 | { | |
421 | memcpy (nlm_custom_header (abfd)->stamp, thdr.stamp, | |
422 | sizeof (thdr.stamp)); | |
423 | nlm_custom_header (abfd)->hdrLength = hdrLength; | |
424 | nlm_custom_header (abfd)->dataOffset = dataOffset; | |
425 | nlm_custom_header (abfd)->dataLength = dataLength; | |
426 | memcpy (nlm_custom_header (abfd)->dataStamp, dataStamp, | |
427 | sizeof (dataStamp)); | |
428 | nlm_custom_header (abfd)->hdr = hdr; | |
429 | } | |
430 | } | |
431 | else | |
9e12c7db | 432 | break; |
252b5132 | 433 | } |
b34976b6 | 434 | return TRUE; |
252b5132 RH |
435 | } |
436 | ||
7920ce38 NC |
437 | const bfd_target * |
438 | nlm_object_p (bfd *abfd) | |
439 | { | |
440 | struct nlm_obj_tdata *preserved_tdata = nlm_tdata (abfd); | |
441 | bfd_boolean (*backend_object_p) (bfd *); | |
442 | void * x_fxdhdr = NULL; | |
443 | Nlm_Internal_Fixed_Header *i_fxdhdrp; | |
444 | struct nlm_obj_tdata *new_tdata = NULL; | |
445 | const char *signature; | |
446 | enum bfd_architecture arch; | |
447 | bfd_size_type amt; | |
448 | ||
449 | /* Some NLM formats have a prefix before the standard NLM fixed | |
450 | header. */ | |
451 | backend_object_p = nlm_backend_object_p_func (abfd); | |
452 | if (backend_object_p) | |
453 | { | |
454 | if (!(*backend_object_p) (abfd)) | |
455 | goto got_wrong_format_error; | |
456 | } | |
457 | ||
458 | /* Read in the fixed length portion of the NLM header in external format. */ | |
459 | amt = nlm_fixed_header_size (abfd); | |
460 | x_fxdhdr = bfd_malloc (amt); | |
461 | if (x_fxdhdr == NULL) | |
462 | goto got_no_match; | |
463 | ||
464 | if (bfd_bread ((void *) x_fxdhdr, amt, abfd) != amt) | |
465 | { | |
466 | if (bfd_get_error () != bfd_error_system_call) | |
467 | goto got_wrong_format_error; | |
468 | else | |
469 | goto got_no_match; | |
470 | } | |
471 | ||
472 | /* Allocate an instance of the nlm_obj_tdata structure and hook it up to | |
473 | the tdata pointer in the bfd. */ | |
474 | amt = sizeof (struct nlm_obj_tdata); | |
475 | new_tdata = bfd_zalloc (abfd, amt); | |
476 | if (new_tdata == NULL) | |
477 | goto got_no_match; | |
478 | ||
479 | nlm_tdata (abfd) = new_tdata; | |
480 | ||
481 | i_fxdhdrp = nlm_fixed_header (abfd); | |
482 | nlm_swap_fixed_header_in (abfd, x_fxdhdr, i_fxdhdrp); | |
483 | free (x_fxdhdr); | |
484 | x_fxdhdr = NULL; | |
485 | ||
486 | /* Check to see if we have an NLM file for this backend by matching | |
487 | the NLM signature. */ | |
488 | signature = nlm_signature (abfd); | |
489 | if (signature != NULL | |
490 | && *signature != '\0' | |
491 | && strncmp ((char *) i_fxdhdrp->signature, signature, | |
492 | NLM_SIGNATURE_SIZE) != 0) | |
493 | goto got_wrong_format_error; | |
494 | ||
cc643b88 | 495 | /* There's no supported way to discover the endianness of an NLM, so test for |
7920ce38 NC |
496 | a sane version number after doing byte swapping appropriate for this |
497 | XVEC. (Hack alert!) */ | |
498 | if (i_fxdhdrp->version > 0xFFFF) | |
499 | goto got_wrong_format_error; | |
500 | ||
501 | /* There's no supported way to check for 32 bit versus 64 bit addresses, | |
502 | so ignore this distinction for now. (FIXME) */ | |
503 | /* Swap in the rest of the required header. */ | |
504 | if (!nlm_swap_variable_header_in (abfd)) | |
505 | { | |
506 | if (bfd_get_error () != bfd_error_system_call) | |
507 | goto got_wrong_format_error; | |
508 | else | |
509 | goto got_no_match; | |
510 | } | |
511 | ||
512 | /* Add the sections supplied by all NLM's, and then read in the | |
513 | auxiliary headers. Reading the auxiliary headers may create | |
514 | additional sections described in the cygnus_ext header. | |
515 | From this point on we assume that we have an NLM, and do not | |
516 | treat errors as indicating the wrong format. */ | |
517 | if (!add_bfd_section (abfd, NLM_CODE_NAME, | |
518 | i_fxdhdrp->codeImageOffset, | |
519 | i_fxdhdrp->codeImageSize, | |
520 | (SEC_CODE | SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | |
521 | | SEC_RELOC)) | |
522 | || !add_bfd_section (abfd, NLM_INITIALIZED_DATA_NAME, | |
523 | i_fxdhdrp->dataImageOffset, | |
524 | i_fxdhdrp->dataImageSize, | |
525 | (SEC_DATA | SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | |
526 | | SEC_RELOC)) | |
527 | || !add_bfd_section (abfd, NLM_UNINITIALIZED_DATA_NAME, | |
528 | (file_ptr) 0, | |
529 | i_fxdhdrp->uninitializedDataSize, | |
530 | SEC_ALLOC)) | |
531 | goto got_no_match; | |
532 | ||
533 | if (!nlm_swap_auxiliary_headers_in (abfd)) | |
534 | goto got_no_match; | |
535 | ||
536 | if (nlm_fixed_header (abfd)->numberOfRelocationFixups != 0 | |
537 | || nlm_fixed_header (abfd)->numberOfExternalReferences != 0) | |
538 | abfd->flags |= HAS_RELOC; | |
539 | if (nlm_fixed_header (abfd)->numberOfPublics != 0 | |
540 | || nlm_fixed_header (abfd)->numberOfDebugRecords != 0 | |
541 | || nlm_fixed_header (abfd)->numberOfExternalReferences != 0) | |
542 | abfd->flags |= HAS_SYMS; | |
543 | ||
544 | arch = nlm_architecture (abfd); | |
545 | if (arch != bfd_arch_unknown) | |
546 | bfd_default_set_arch_mach (abfd, arch, (unsigned long) 0); | |
547 | ||
548 | abfd->flags |= EXEC_P; | |
549 | bfd_get_start_address (abfd) = nlm_fixed_header (abfd)->codeStartOffset; | |
550 | ||
551 | return abfd->xvec; | |
552 | ||
553 | got_wrong_format_error: | |
554 | bfd_set_error (bfd_error_wrong_format); | |
555 | got_no_match: | |
556 | nlm_tdata (abfd) = preserved_tdata; | |
557 | if (new_tdata != NULL) | |
558 | bfd_release (abfd, new_tdata); | |
559 | if (x_fxdhdr != NULL) | |
560 | free (x_fxdhdr); | |
561 | ||
562 | return NULL; | |
563 | } | |
564 | ||
565 | /* Swap and write out the variable length header. All the fields must | |
566 | exist in the NLM, and must exist in this order. */ | |
567 | ||
568 | static bfd_boolean | |
569 | nlm_swap_variable_header_out (bfd *abfd) | |
570 | { | |
571 | bfd_byte temp[NLM_TARGET_LONG_SIZE]; | |
572 | bfd_size_type amt; | |
573 | ||
574 | /* Write the description length and text members. */ | |
575 | amt = sizeof (nlm_variable_header (abfd)->descriptionLength); | |
576 | if (bfd_bwrite (& nlm_variable_header (abfd)->descriptionLength, amt, | |
577 | abfd) != amt) | |
578 | return FALSE; | |
579 | amt = nlm_variable_header (abfd)->descriptionLength + 1; | |
580 | if (bfd_bwrite ((void *) nlm_variable_header (abfd)->descriptionText, amt, | |
581 | abfd) != amt) | |
582 | return FALSE; | |
583 | ||
584 | /* Convert and write the stackSize field. */ | |
585 | put_word (abfd, (bfd_vma) nlm_variable_header (abfd)->stackSize, temp); | |
586 | amt = sizeof (temp); | |
587 | if (bfd_bwrite (temp, amt, abfd) != amt) | |
588 | return FALSE; | |
589 | ||
590 | /* Convert and write the reserved field. */ | |
591 | put_word (abfd, (bfd_vma) nlm_variable_header (abfd)->reserved, temp); | |
592 | amt = sizeof (temp); | |
593 | if (bfd_bwrite (temp, amt, abfd) != amt) | |
594 | return FALSE; | |
595 | ||
596 | /* Write the oldThreadName field. This field is a fixed length string. */ | |
597 | amt = sizeof (nlm_variable_header (abfd)->oldThreadName); | |
598 | if (bfd_bwrite (nlm_variable_header (abfd)->oldThreadName, amt, | |
599 | abfd) != amt) | |
600 | return FALSE; | |
601 | ||
602 | /* Write the screen name length and text members. */ | |
603 | amt = sizeof (nlm_variable_header (abfd)->screenNameLength); | |
604 | if (bfd_bwrite (& nlm_variable_header (abfd)->screenNameLength, amt, | |
605 | abfd) != amt) | |
606 | return FALSE; | |
607 | amt = nlm_variable_header (abfd)->screenNameLength + 1; | |
608 | if (bfd_bwrite (nlm_variable_header (abfd)->screenName, amt, abfd) != amt) | |
609 | return FALSE; | |
610 | ||
611 | /* Write the thread name length and text members. */ | |
612 | amt = sizeof (nlm_variable_header (abfd)->threadNameLength); | |
613 | if (bfd_bwrite (& nlm_variable_header (abfd)->threadNameLength, amt, | |
614 | abfd) != amt) | |
615 | return FALSE; | |
616 | amt = nlm_variable_header (abfd)->threadNameLength + 1; | |
617 | if (bfd_bwrite (nlm_variable_header (abfd)->threadName, amt, abfd) != amt) | |
618 | return FALSE; | |
619 | return TRUE; | |
620 | } | |
621 | ||
252b5132 RH |
622 | /* Return whether there is a non-zero byte in a memory block. */ |
623 | ||
b34976b6 | 624 | static bfd_boolean |
7920ce38 | 625 | find_nonzero (void * buf, size_t size) |
252b5132 RH |
626 | { |
627 | char *p = (char *) buf; | |
628 | ||
629 | while (size-- != 0) | |
630 | if (*p++ != 0) | |
b34976b6 AM |
631 | return TRUE; |
632 | return FALSE; | |
252b5132 RH |
633 | } |
634 | ||
635 | /* Swap out the contents of the auxiliary headers. We create those | |
636 | auxiliary headers which have been set non-zero. We do not require | |
637 | the caller to set up the stamp fields. */ | |
638 | ||
b34976b6 | 639 | static bfd_boolean |
7920ce38 | 640 | nlm_swap_auxiliary_headers_out (bfd *abfd) |
252b5132 | 641 | { |
dc810e39 AM |
642 | bfd_size_type amt; |
643 | ||
252b5132 | 644 | /* Write out the version header if there is one. */ |
7920ce38 | 645 | if (find_nonzero (nlm_version_header (abfd), |
252b5132 RH |
646 | sizeof (Nlm_Internal_Version_Header))) |
647 | { | |
648 | Nlm_External_Version_Header thdr; | |
649 | ||
ea9986ff | 650 | LITMEMCPY (thdr.stamp, "VeRsIoN#"); |
252b5132 RH |
651 | put_word (abfd, (bfd_vma) nlm_version_header (abfd)->majorVersion, |
652 | (bfd_byte *) thdr.majorVersion); | |
653 | put_word (abfd, (bfd_vma) nlm_version_header (abfd)->minorVersion, | |
654 | (bfd_byte *) thdr.minorVersion); | |
655 | put_word (abfd, (bfd_vma) nlm_version_header (abfd)->revision, | |
656 | (bfd_byte *) thdr.revision); | |
657 | put_word (abfd, (bfd_vma) nlm_version_header (abfd)->year, | |
658 | (bfd_byte *) thdr.year); | |
659 | put_word (abfd, (bfd_vma) nlm_version_header (abfd)->month, | |
660 | (bfd_byte *) thdr.month); | |
661 | put_word (abfd, (bfd_vma) nlm_version_header (abfd)->day, | |
662 | (bfd_byte *) thdr.day); | |
7920ce38 | 663 | if (bfd_bwrite ((void *) &thdr, (bfd_size_type) sizeof (thdr), abfd) |
dc810e39 | 664 | != sizeof (thdr)) |
b34976b6 | 665 | return FALSE; |
252b5132 RH |
666 | } |
667 | ||
9e12c7db NC |
668 | /* Note - the CoPyRiGhT tag is emitted before the MeSsAgEs |
669 | tag in order to make the NW4.x and NW5.x loaders happy. */ | |
670 | ||
671 | /* Write out the copyright header if there is one. */ | |
7920ce38 | 672 | if (find_nonzero (nlm_copyright_header (abfd), |
9e12c7db NC |
673 | sizeof (Nlm_Internal_Copyright_Header))) |
674 | { | |
675 | Nlm_External_Copyright_Header thdr; | |
676 | ||
ea9986ff | 677 | LITMEMCPY (thdr.stamp, "CoPyRiGhT="); |
9e12c7db | 678 | amt = sizeof (thdr.stamp); |
7920ce38 | 679 | if (bfd_bwrite ((void *) thdr.stamp, amt, abfd) != amt) |
b34976b6 | 680 | return FALSE; |
9e12c7db NC |
681 | thdr.copyrightMessageLength[0] = |
682 | nlm_copyright_header (abfd)->copyrightMessageLength; | |
683 | amt = 1; | |
7920ce38 | 684 | if (bfd_bwrite ((void *) thdr.copyrightMessageLength, amt, abfd) != amt) |
b34976b6 | 685 | return FALSE; |
9e12c7db NC |
686 | /* The copyright message is a variable length string. */ |
687 | amt = nlm_copyright_header (abfd)->copyrightMessageLength + 1; | |
7920ce38 | 688 | if (bfd_bwrite ((void *) nlm_copyright_header (abfd)->copyrightMessage, |
9e12c7db | 689 | amt, abfd) != amt) |
b34976b6 | 690 | return FALSE; |
9e12c7db NC |
691 | } |
692 | ||
252b5132 | 693 | /* Write out the extended header if there is one. */ |
7920ce38 | 694 | if (find_nonzero (nlm_extended_header (abfd), |
252b5132 RH |
695 | sizeof (Nlm_Internal_Extended_Header))) |
696 | { | |
697 | Nlm_External_Extended_Header thdr; | |
698 | ||
ea9986ff | 699 | LITMEMCPY (thdr.stamp, "MeSsAgEs"); |
252b5132 RH |
700 | put_word (abfd, |
701 | (bfd_vma) nlm_extended_header (abfd)->languageID, | |
702 | (bfd_byte *) thdr.languageID); | |
703 | put_word (abfd, | |
704 | (bfd_vma) nlm_extended_header (abfd)->messageFileOffset, | |
705 | (bfd_byte *) thdr.messageFileOffset); | |
706 | put_word (abfd, | |
707 | (bfd_vma) nlm_extended_header (abfd)->messageFileLength, | |
708 | (bfd_byte *) thdr.messageFileLength); | |
709 | put_word (abfd, | |
710 | (bfd_vma) nlm_extended_header (abfd)->messageCount, | |
711 | (bfd_byte *) thdr.messageCount); | |
712 | put_word (abfd, | |
713 | (bfd_vma) nlm_extended_header (abfd)->helpFileOffset, | |
714 | (bfd_byte *) thdr.helpFileOffset); | |
715 | put_word (abfd, | |
716 | (bfd_vma) nlm_extended_header (abfd)->helpFileLength, | |
717 | (bfd_byte *) thdr.helpFileLength); | |
718 | put_word (abfd, | |
719 | (bfd_vma) nlm_extended_header (abfd)->RPCDataOffset, | |
720 | (bfd_byte *) thdr.RPCDataOffset); | |
721 | put_word (abfd, | |
722 | (bfd_vma) nlm_extended_header (abfd)->RPCDataLength, | |
723 | (bfd_byte *) thdr.RPCDataLength); | |
724 | put_word (abfd, | |
725 | (bfd_vma) nlm_extended_header (abfd)->sharedCodeOffset, | |
726 | (bfd_byte *) thdr.sharedCodeOffset); | |
727 | put_word (abfd, | |
728 | (bfd_vma) nlm_extended_header (abfd)->sharedCodeLength, | |
729 | (bfd_byte *) thdr.sharedCodeLength); | |
730 | put_word (abfd, | |
731 | (bfd_vma) nlm_extended_header (abfd)->sharedDataOffset, | |
732 | (bfd_byte *) thdr.sharedDataOffset); | |
733 | put_word (abfd, | |
734 | (bfd_vma) nlm_extended_header (abfd)->sharedDataLength, | |
735 | (bfd_byte *) thdr.sharedDataLength); | |
736 | put_word (abfd, | |
737 | (bfd_vma) nlm_extended_header (abfd)->sharedRelocationFixupOffset, | |
738 | (bfd_byte *) thdr.sharedRelocationFixupOffset); | |
739 | put_word (abfd, | |
740 | (bfd_vma) nlm_extended_header (abfd)->sharedRelocationFixupCount, | |
741 | (bfd_byte *) thdr.sharedRelocationFixupCount); | |
742 | put_word (abfd, | |
743 | (bfd_vma) nlm_extended_header (abfd)->sharedExternalReferenceOffset, | |
744 | (bfd_byte *) thdr.sharedExternalReferenceOffset); | |
745 | put_word (abfd, | |
746 | (bfd_vma) nlm_extended_header (abfd)->sharedExternalReferenceCount, | |
747 | (bfd_byte *) thdr.sharedExternalReferenceCount); | |
748 | put_word (abfd, | |
749 | (bfd_vma) nlm_extended_header (abfd)->sharedPublicsOffset, | |
750 | (bfd_byte *) thdr.sharedPublicsOffset); | |
751 | put_word (abfd, | |
752 | (bfd_vma) nlm_extended_header (abfd)->sharedPublicsCount, | |
753 | (bfd_byte *) thdr.sharedPublicsCount); | |
754 | put_word (abfd, | |
755 | (bfd_vma) nlm_extended_header (abfd)->sharedDebugRecordOffset, | |
756 | (bfd_byte *) thdr.sharedDebugRecordOffset); | |
757 | put_word (abfd, | |
758 | (bfd_vma) nlm_extended_header (abfd)->sharedDebugRecordCount, | |
759 | (bfd_byte *) thdr.sharedDebugRecordCount); | |
760 | put_word (abfd, | |
761 | (bfd_vma) nlm_extended_header (abfd)->SharedInitializationOffset, | |
762 | (bfd_byte *) thdr.sharedInitializationOffset); | |
763 | put_word (abfd, | |
764 | (bfd_vma) nlm_extended_header (abfd)->SharedExitProcedureOffset, | |
765 | (bfd_byte *) thdr.SharedExitProcedureOffset); | |
766 | put_word (abfd, | |
767 | (bfd_vma) nlm_extended_header (abfd)->productID, | |
768 | (bfd_byte *) thdr.productID); | |
769 | put_word (abfd, | |
770 | (bfd_vma) nlm_extended_header (abfd)->reserved0, | |
771 | (bfd_byte *) thdr.reserved0); | |
772 | put_word (abfd, | |
773 | (bfd_vma) nlm_extended_header (abfd)->reserved1, | |
774 | (bfd_byte *) thdr.reserved1); | |
775 | put_word (abfd, | |
776 | (bfd_vma) nlm_extended_header (abfd)->reserved2, | |
777 | (bfd_byte *) thdr.reserved2); | |
778 | put_word (abfd, | |
779 | (bfd_vma) nlm_extended_header (abfd)->reserved3, | |
780 | (bfd_byte *) thdr.reserved3); | |
781 | put_word (abfd, | |
782 | (bfd_vma) nlm_extended_header (abfd)->reserved4, | |
783 | (bfd_byte *) thdr.reserved4); | |
784 | put_word (abfd, | |
785 | (bfd_vma) nlm_extended_header (abfd)->reserved5, | |
786 | (bfd_byte *) thdr.reserved5); | |
7920ce38 | 787 | if (bfd_bwrite ((void *) &thdr, (bfd_size_type) sizeof (thdr), abfd) |
dc810e39 | 788 | != sizeof (thdr)) |
b34976b6 | 789 | return FALSE; |
252b5132 RH |
790 | } |
791 | ||
252b5132 | 792 | /* Write out the custom header if there is one. */ |
7920ce38 | 793 | if (find_nonzero (nlm_custom_header (abfd), |
252b5132 RH |
794 | sizeof (Nlm_Internal_Custom_Header))) |
795 | { | |
796 | Nlm_External_Custom_Header thdr; | |
b34976b6 | 797 | bfd_boolean ds; |
252b5132 RH |
798 | bfd_size_type hdrLength; |
799 | ||
7920ce38 | 800 | ds = find_nonzero (nlm_custom_header (abfd)->dataStamp, |
252b5132 | 801 | sizeof (nlm_custom_header (abfd)->dataStamp)); |
ea9986ff | 802 | LITMEMCPY (thdr.stamp, "CuStHeAd"); |
252b5132 RH |
803 | hdrLength = (2 * NLM_TARGET_LONG_SIZE + (ds ? 8 : 0) |
804 | + nlm_custom_header (abfd)->hdrLength); | |
805 | put_word (abfd, hdrLength, thdr.length); | |
806 | put_word (abfd, (bfd_vma) nlm_custom_header (abfd)->dataOffset, | |
807 | thdr.dataOffset); | |
808 | put_word (abfd, (bfd_vma) nlm_custom_header (abfd)->dataLength, | |
809 | thdr.dataLength); | |
810 | if (! ds) | |
811 | { | |
812 | BFD_ASSERT (nlm_custom_header (abfd)->hdrLength == 0); | |
dc810e39 | 813 | amt = sizeof (thdr) - sizeof (thdr.dataStamp); |
7920ce38 | 814 | if (bfd_bwrite ((void *) &thdr, amt, abfd) != amt) |
b34976b6 | 815 | return FALSE; |
252b5132 RH |
816 | } |
817 | else | |
818 | { | |
819 | memcpy (thdr.dataStamp, nlm_custom_header (abfd)->dataStamp, | |
820 | sizeof (thdr.dataStamp)); | |
dc810e39 | 821 | amt = sizeof (thdr); |
7920ce38 | 822 | if (bfd_bwrite ((void *) &thdr, amt, abfd) != amt) |
b34976b6 | 823 | return FALSE; |
dc810e39 AM |
824 | amt = nlm_custom_header (abfd)->hdrLength; |
825 | if (bfd_bwrite (nlm_custom_header (abfd)->hdr, amt, abfd) != amt) | |
b34976b6 | 826 | return FALSE; |
252b5132 RH |
827 | } |
828 | } | |
829 | ||
830 | /* Write out the Cygnus debugging header if there is one. */ | |
7920ce38 | 831 | if (find_nonzero (nlm_cygnus_ext_header (abfd), |
252b5132 RH |
832 | sizeof (Nlm_Internal_Cygnus_Ext_Header))) |
833 | { | |
834 | Nlm_External_Custom_Header thdr; | |
835 | ||
ea9986ff | 836 | LITMEMCPY (thdr.stamp, "CuStHeAd"); |
252b5132 RH |
837 | put_word (abfd, (bfd_vma) 2 * NLM_TARGET_LONG_SIZE + 8, |
838 | (bfd_byte *) thdr.length); | |
839 | put_word (abfd, (bfd_vma) nlm_cygnus_ext_header (abfd)->offset, | |
840 | (bfd_byte *) thdr.dataOffset); | |
841 | put_word (abfd, (bfd_vma) nlm_cygnus_ext_header (abfd)->length, | |
842 | (bfd_byte *) thdr.dataLength); | |
ea9986ff | 843 | LITMEMCPY (thdr.dataStamp, "CyGnUsEx"); |
dc810e39 | 844 | amt = sizeof (thdr); |
7920ce38 | 845 | if (bfd_bwrite ((void *) &thdr, amt, abfd) != amt) |
b34976b6 | 846 | return FALSE; |
252b5132 RH |
847 | } |
848 | ||
b34976b6 | 849 | return TRUE; |
252b5132 RH |
850 | } |
851 | ||
852 | /* We read the NLM's public symbols and use it to generate a bfd symbol | |
853 | table (hey, it's better than nothing) on a one-for-one basis. Thus | |
854 | use the number of public symbols as the number of bfd symbols we will | |
855 | have once we actually get around to reading them in. | |
856 | ||
857 | Return the number of bytes required to hold the symtab vector, based on | |
858 | the count plus 1, since we will NULL terminate the vector allocated based | |
1518639e | 859 | on this size. */ |
252b5132 RH |
860 | |
861 | long | |
7920ce38 | 862 | nlm_get_symtab_upper_bound (bfd *abfd) |
252b5132 | 863 | { |
9e12c7db | 864 | Nlm_Internal_Fixed_Header *i_fxdhdrp; /* Nlm file header, internal form. */ |
252b5132 RH |
865 | long symcount; |
866 | long symtab_size = 0; | |
867 | ||
868 | i_fxdhdrp = nlm_fixed_header (abfd); | |
869 | symcount = (i_fxdhdrp->numberOfPublics | |
870 | + i_fxdhdrp->numberOfDebugRecords | |
871 | + i_fxdhdrp->numberOfExternalReferences); | |
872 | symtab_size = (symcount + 1) * (sizeof (asymbol)); | |
7920ce38 | 873 | return symtab_size; |
252b5132 RH |
874 | } |
875 | ||
876 | /* Slurp in nlm symbol table. | |
877 | ||
878 | In the external (in-file) form, NLM export records are variable length, | |
879 | with the following form: | |
880 | ||
881 | 1 byte length of the symbol name (N) | |
882 | N bytes the symbol name | |
883 | 4 bytes the symbol offset from start of it's section | |
884 | ||
885 | We also read in the debugging symbols and import records. Import | |
886 | records are treated as undefined symbols. As we read the import | |
887 | records we also read in the associated reloc information, which is | |
888 | attached to the symbol. | |
889 | ||
7920ce38 | 890 | The bfd symbols are copied to SYMvoid *S. |
252b5132 RH |
891 | |
892 | When we return, the bfd symcount is either zero or contains the correct | |
9e12c7db | 893 | number of symbols. */ |
252b5132 | 894 | |
b34976b6 | 895 | static bfd_boolean |
7920ce38 | 896 | nlm_slurp_symbol_table (bfd *abfd) |
252b5132 | 897 | { |
9e12c7db NC |
898 | Nlm_Internal_Fixed_Header *i_fxdhdrp; /* Nlm file header, internal form. */ |
899 | bfd_size_type totsymcount; /* Number of NLM symbols. */ | |
900 | bfd_size_type symcount; /* Counter of NLM symbols. */ | |
901 | nlm_symbol_type *sym; /* Pointer to current bfd symbol. */ | |
902 | unsigned char symlength; /* Symbol length read into here. */ | |
903 | unsigned char symtype; /* Type of debugging symbol. */ | |
904 | bfd_byte temp[NLM_TARGET_LONG_SIZE]; /* Symbol offsets read into here. */ | |
7920ce38 NC |
905 | bfd_boolean (*read_import_func) (bfd *, nlm_symbol_type *); |
906 | bfd_boolean (*set_public_section_func) (bfd *, nlm_symbol_type *); | |
dc810e39 | 907 | bfd_size_type amt; |
252b5132 RH |
908 | |
909 | if (nlm_get_symbols (abfd) != NULL) | |
b34976b6 | 910 | return TRUE; |
252b5132 RH |
911 | |
912 | /* Read each raw NLM symbol, using the information to create a canonical bfd | |
913 | symbol table entry. | |
914 | ||
915 | Note that we allocate the initial bfd canonical symbol buffer based on a | |
916 | one-to-one mapping of the NLM symbols to canonical symbols. We actually | |
917 | use all the NLM symbols, so there will be no space left over at the end. | |
1518639e | 918 | When we have all the symbols, we build the caller's pointer vector. */ |
252b5132 RH |
919 | |
920 | abfd->symcount = 0; | |
921 | i_fxdhdrp = nlm_fixed_header (abfd); | |
922 | totsymcount = (i_fxdhdrp->numberOfPublics | |
923 | + i_fxdhdrp->numberOfDebugRecords | |
924 | + i_fxdhdrp->numberOfExternalReferences); | |
925 | if (totsymcount == 0) | |
b34976b6 | 926 | return TRUE; |
252b5132 | 927 | |
dc810e39 | 928 | if (bfd_seek (abfd, i_fxdhdrp->publicsOffset, SEEK_SET) != 0) |
b34976b6 | 929 | return FALSE; |
252b5132 | 930 | |
dc810e39 | 931 | amt = totsymcount * sizeof (nlm_symbol_type); |
7920ce38 | 932 | sym = bfd_zalloc (abfd, amt); |
252b5132 | 933 | if (!sym) |
b34976b6 | 934 | return FALSE; |
252b5132 RH |
935 | nlm_set_symbols (abfd, sym); |
936 | ||
937 | /* We use the bfd's symcount directly as the control count, so that early | |
938 | termination of the loop leaves the symcount correct for the symbols that | |
1518639e | 939 | were read. */ |
252b5132 RH |
940 | |
941 | set_public_section_func = nlm_set_public_section_func (abfd); | |
942 | symcount = i_fxdhdrp->numberOfPublics; | |
943 | while (abfd->symcount < symcount) | |
944 | { | |
dc810e39 | 945 | amt = sizeof (symlength); |
7920ce38 | 946 | if (bfd_bread ((void *) &symlength, amt, abfd) != amt) |
b34976b6 | 947 | return FALSE; |
dc810e39 | 948 | amt = symlength; |
252b5132 | 949 | sym->symbol.the_bfd = abfd; |
dc810e39 | 950 | sym->symbol.name = bfd_alloc (abfd, amt + 1); |
252b5132 | 951 | if (!sym->symbol.name) |
b34976b6 | 952 | return FALSE; |
7920ce38 | 953 | if (bfd_bread ((void *) sym->symbol.name, amt, abfd) != amt) |
b34976b6 | 954 | return FALSE; |
252b5132 RH |
955 | /* Cast away const. */ |
956 | ((char *) (sym->symbol.name))[symlength] = '\0'; | |
dc810e39 | 957 | amt = sizeof (temp); |
7920ce38 | 958 | if (bfd_bread ((void *) temp, amt, abfd) != amt) |
b34976b6 | 959 | return FALSE; |
252b5132 RH |
960 | sym->symbol.flags = BSF_GLOBAL | BSF_EXPORT; |
961 | sym->symbol.value = get_word (abfd, temp); | |
962 | if (set_public_section_func) | |
963 | { | |
964 | /* Most backends can use the code below, but unfortunately | |
965 | some use a different scheme. */ | |
82e51918 | 966 | if (! (*set_public_section_func) (abfd, sym)) |
b34976b6 | 967 | return FALSE; |
252b5132 RH |
968 | } |
969 | else | |
970 | { | |
971 | if (sym->symbol.value & NLM_HIBIT) | |
972 | { | |
973 | sym->symbol.value &= ~NLM_HIBIT; | |
974 | sym->symbol.flags |= BSF_FUNCTION; | |
975 | sym->symbol.section = | |
976 | bfd_get_section_by_name (abfd, NLM_CODE_NAME); | |
977 | } | |
978 | else | |
7920ce38 NC |
979 | sym->symbol.section = |
980 | bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_NAME); | |
252b5132 RH |
981 | } |
982 | sym->rcnt = 0; | |
983 | abfd->symcount++; | |
984 | sym++; | |
985 | } | |
986 | ||
987 | /* Read the debugging records. */ | |
988 | ||
989 | if (i_fxdhdrp->numberOfDebugRecords > 0) | |
990 | { | |
dc810e39 | 991 | if (bfd_seek (abfd, i_fxdhdrp->debugInfoOffset, SEEK_SET) != 0) |
b34976b6 | 992 | return FALSE; |
252b5132 RH |
993 | |
994 | symcount += i_fxdhdrp->numberOfDebugRecords; | |
995 | while (abfd->symcount < symcount) | |
996 | { | |
dc810e39 | 997 | amt = sizeof (symtype); |
7920ce38 | 998 | if (bfd_bread ((void *) &symtype, amt, abfd) != amt) |
b34976b6 | 999 | return FALSE; |
dc810e39 | 1000 | amt = sizeof (temp); |
7920ce38 | 1001 | if (bfd_bread ((void *) temp, amt, abfd) != amt) |
b34976b6 | 1002 | return FALSE; |
dc810e39 | 1003 | amt = sizeof (symlength); |
7920ce38 | 1004 | if (bfd_bread ((void *) &symlength, amt, abfd) != amt) |
b34976b6 | 1005 | return FALSE; |
dc810e39 | 1006 | amt = symlength; |
252b5132 | 1007 | sym->symbol.the_bfd = abfd; |
dc810e39 | 1008 | sym->symbol.name = bfd_alloc (abfd, amt + 1); |
252b5132 | 1009 | if (!sym->symbol.name) |
b34976b6 | 1010 | return FALSE; |
7920ce38 | 1011 | if (bfd_bread ((void *) sym->symbol.name, amt, abfd) != amt) |
b34976b6 | 1012 | return FALSE; |
252b5132 RH |
1013 | /* Cast away const. */ |
1014 | ((char *) (sym->symbol.name))[symlength] = '\0'; | |
1015 | sym->symbol.flags = BSF_LOCAL; | |
1016 | sym->symbol.value = get_word (abfd, temp); | |
7920ce38 | 1017 | |
252b5132 | 1018 | if (symtype == 0) |
7920ce38 NC |
1019 | sym->symbol.section = |
1020 | bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_NAME); | |
252b5132 RH |
1021 | else if (symtype == 1) |
1022 | { | |
1023 | sym->symbol.flags |= BSF_FUNCTION; | |
1024 | sym->symbol.section = | |
1025 | bfd_get_section_by_name (abfd, NLM_CODE_NAME); | |
1026 | } | |
1027 | else | |
7920ce38 NC |
1028 | sym->symbol.section = bfd_abs_section_ptr; |
1029 | ||
252b5132 RH |
1030 | sym->rcnt = 0; |
1031 | abfd->symcount++; | |
1032 | sym++; | |
1033 | } | |
1034 | } | |
1035 | ||
1036 | /* Read in the import records. We can only do this if we know how | |
1037 | to read relocs for this target. */ | |
252b5132 RH |
1038 | read_import_func = nlm_read_import_func (abfd); |
1039 | if (read_import_func != NULL) | |
1040 | { | |
dc810e39 | 1041 | if (bfd_seek (abfd, i_fxdhdrp->externalReferencesOffset, SEEK_SET) != 0) |
b34976b6 | 1042 | return FALSE; |
252b5132 RH |
1043 | |
1044 | symcount += i_fxdhdrp->numberOfExternalReferences; | |
1045 | while (abfd->symcount < symcount) | |
1046 | { | |
82e51918 | 1047 | if (! (*read_import_func) (abfd, sym)) |
b34976b6 | 1048 | return FALSE; |
252b5132 RH |
1049 | sym++; |
1050 | abfd->symcount++; | |
1051 | } | |
1052 | } | |
1053 | ||
b34976b6 | 1054 | return TRUE; |
252b5132 | 1055 | } |
7920ce38 NC |
1056 | |
1057 | /* Note that bfd_get_symcount is guaranteed to be zero if slurping the | |
1058 | symbol table fails. */ | |
1059 | ||
1060 | long | |
1061 | nlm_canonicalize_symtab (bfd *abfd, asymbol **alocation) | |
1062 | { | |
1063 | nlm_symbol_type *symbase; | |
1064 | bfd_size_type counter = 0; | |
1065 | ||
1066 | if (! nlm_slurp_symbol_table (abfd)) | |
1067 | return -1; | |
1068 | symbase = nlm_get_symbols (abfd); | |
1069 | while (counter < bfd_get_symcount (abfd)) | |
1070 | { | |
1071 | *alocation++ = &symbase->symbol; | |
1072 | symbase++; | |
1073 | counter++; | |
1074 | } | |
1075 | *alocation = NULL; | |
1076 | return bfd_get_symcount (abfd); | |
1077 | } | |
1078 | ||
1079 | /* Make an NLM symbol. There is nothing special to do here. */ | |
1080 | ||
1081 | asymbol * | |
1082 | nlm_make_empty_symbol (bfd *abfd) | |
1083 | { | |
1084 | bfd_size_type amt = sizeof (nlm_symbol_type); | |
1085 | nlm_symbol_type *new = bfd_zalloc (abfd, amt); | |
1086 | ||
1087 | if (new == NULL) | |
1088 | return NULL; | |
1089 | new->symbol.the_bfd = abfd; | |
1090 | return & new->symbol; | |
1091 | } | |
1092 | ||
1093 | /* Get symbol information. */ | |
1094 | ||
1095 | void | |
1096 | nlm_get_symbol_info (bfd *ignore_abfd ATTRIBUTE_UNUSED, | |
1097 | asymbol *symbol, | |
1098 | symbol_info *ret) | |
1099 | { | |
1100 | bfd_symbol_info (symbol, ret); | |
1101 | } | |
1102 | ||
1103 | /* Print symbol information. */ | |
1104 | ||
1105 | void | |
1106 | nlm_print_symbol (bfd *abfd, | |
1107 | void * afile, | |
1108 | asymbol *symbol, | |
1109 | bfd_print_symbol_type how) | |
1110 | { | |
1111 | FILE *file = (FILE *) afile; | |
1112 | ||
1113 | switch (how) | |
1114 | { | |
1115 | case bfd_print_symbol_name: | |
1116 | case bfd_print_symbol_more: | |
1117 | if (symbol->name) | |
1118 | fprintf (file, "%s", symbol->name); | |
1119 | break; | |
1120 | case bfd_print_symbol_all: | |
1121 | bfd_print_symbol_vandf (abfd, (void *) file, symbol); | |
1122 | fprintf (file, " %-5s", symbol->section->name); | |
1123 | if (symbol->name) | |
1124 | fprintf (file, " %s", symbol->name); | |
1125 | break; | |
1126 | } | |
1127 | } | |
252b5132 RH |
1128 | \f |
1129 | /* Get the relocs for an NLM file. There are two types of relocs. | |
1130 | Imports are relocs against symbols defined in other NLM files. We | |
1131 | treat these as relocs against global symbols. Relocation fixups | |
1132 | are internal relocs. | |
1133 | ||
1134 | The actual format used to store the relocs is machine specific. */ | |
1135 | ||
1136 | /* Read in the relocation fixup information. This is stored in | |
1137 | nlm_relocation_fixups, an array of arelent structures, and | |
1138 | nlm_relocation_fixup_secs, an array of section pointers. The | |
1139 | section pointers are needed because the relocs are not sorted by | |
1140 | section. */ | |
1141 | ||
b34976b6 | 1142 | static bfd_boolean |
7920ce38 | 1143 | nlm_slurp_reloc_fixups (bfd *abfd) |
252b5132 | 1144 | { |
7920ce38 | 1145 | bfd_boolean (*read_func) (bfd *, nlm_symbol_type *, asection **, arelent *); |
dc810e39 | 1146 | bfd_size_type count, amt; |
252b5132 RH |
1147 | arelent *rels; |
1148 | asection **secs; | |
1149 | ||
1150 | if (nlm_relocation_fixups (abfd) != NULL) | |
b34976b6 | 1151 | return TRUE; |
252b5132 RH |
1152 | read_func = nlm_read_reloc_func (abfd); |
1153 | if (read_func == NULL) | |
b34976b6 | 1154 | return TRUE; |
252b5132 RH |
1155 | |
1156 | if (bfd_seek (abfd, nlm_fixed_header (abfd)->relocationFixupOffset, | |
1157 | SEEK_SET) != 0) | |
b34976b6 | 1158 | return FALSE; |
252b5132 RH |
1159 | |
1160 | count = nlm_fixed_header (abfd)->numberOfRelocationFixups; | |
dc810e39 | 1161 | amt = count * sizeof (arelent); |
7920ce38 | 1162 | rels = bfd_alloc (abfd, amt); |
dc810e39 | 1163 | amt = count * sizeof (asection *); |
7920ce38 | 1164 | secs = bfd_alloc (abfd, amt); |
252b5132 | 1165 | if ((rels == NULL || secs == NULL) && count != 0) |
b34976b6 | 1166 | return FALSE; |
252b5132 RH |
1167 | nlm_relocation_fixups (abfd) = rels; |
1168 | nlm_relocation_fixup_secs (abfd) = secs; | |
1169 | ||
1170 | /* We have to read piece by piece, because we don't know how large | |
1171 | the machine specific reloc information is. */ | |
1172 | while (count-- != 0) | |
1173 | { | |
7920ce38 | 1174 | if (! (*read_func) (abfd, NULL, secs, rels)) |
252b5132 RH |
1175 | { |
1176 | nlm_relocation_fixups (abfd) = NULL; | |
1177 | nlm_relocation_fixup_secs (abfd) = NULL; | |
b34976b6 | 1178 | return FALSE; |
252b5132 RH |
1179 | } |
1180 | ++secs; | |
1181 | ++rels; | |
1182 | } | |
1183 | ||
b34976b6 | 1184 | return TRUE; |
252b5132 RH |
1185 | } |
1186 | ||
1187 | /* Get the number of relocs. This really just returns an upper bound, | |
1188 | since it does not attempt to distinguish them based on the section. | |
1189 | That will be handled when they are actually read. */ | |
1190 | ||
1191 | long | |
7920ce38 | 1192 | nlm_get_reloc_upper_bound (bfd *abfd, asection *sec) |
252b5132 RH |
1193 | { |
1194 | nlm_symbol_type *syms; | |
1195 | bfd_size_type count; | |
1196 | unsigned int ret; | |
1197 | ||
1198 | /* If we don't know how to read relocs, just return 0. */ | |
1199 | if (nlm_read_reloc_func (abfd) == NULL) | |
1200 | return -1; | |
1201 | /* Make sure we have either the code or the data section. */ | |
1202 | if ((bfd_get_section_flags (abfd, sec) & (SEC_CODE | SEC_DATA)) == 0) | |
1203 | return 0; | |
1204 | ||
1205 | syms = nlm_get_symbols (abfd); | |
1206 | if (syms == NULL) | |
1207 | { | |
82e51918 | 1208 | if (! nlm_slurp_symbol_table (abfd)) |
252b5132 RH |
1209 | return -1; |
1210 | syms = nlm_get_symbols (abfd); | |
1211 | } | |
1212 | ||
1213 | ret = nlm_fixed_header (abfd)->numberOfRelocationFixups; | |
1214 | ||
1215 | count = bfd_get_symcount (abfd); | |
1216 | while (count-- != 0) | |
1217 | { | |
1218 | ret += syms->rcnt; | |
1219 | ++syms; | |
1220 | } | |
1221 | ||
1222 | return (ret + 1) * sizeof (arelent *); | |
1223 | } | |
1224 | ||
1225 | /* Get the relocs themselves. */ | |
1226 | ||
1227 | long | |
7920ce38 NC |
1228 | nlm_canonicalize_reloc (bfd *abfd, |
1229 | asection *sec, | |
1230 | arelent **relptr, | |
1231 | asymbol **symbols) | |
252b5132 RH |
1232 | { |
1233 | arelent *rels; | |
1234 | asection **secs; | |
1235 | bfd_size_type count, i; | |
7920ce38 | 1236 | long ret; |
252b5132 RH |
1237 | |
1238 | /* Get the relocation fixups. */ | |
1239 | rels = nlm_relocation_fixups (abfd); | |
1240 | if (rels == NULL) | |
1241 | { | |
82e51918 | 1242 | if (! nlm_slurp_reloc_fixups (abfd)) |
252b5132 RH |
1243 | return -1; |
1244 | rels = nlm_relocation_fixups (abfd); | |
1245 | } | |
1246 | secs = nlm_relocation_fixup_secs (abfd); | |
1247 | ||
1248 | ret = 0; | |
1249 | count = nlm_fixed_header (abfd)->numberOfRelocationFixups; | |
1250 | for (i = 0; i < count; i++, rels++, secs++) | |
1251 | { | |
1252 | if (*secs == sec) | |
1253 | { | |
1254 | *relptr++ = rels; | |
1255 | ++ret; | |
1256 | } | |
1257 | } | |
1258 | ||
1259 | /* Get the import symbols. */ | |
1260 | count = bfd_get_symcount (abfd); | |
1261 | for (i = 0; i < count; i++, symbols++) | |
1262 | { | |
1263 | asymbol *sym; | |
1264 | ||
1265 | sym = *symbols; | |
1266 | if (bfd_asymbol_flavour (sym) == bfd_target_nlm_flavour) | |
1267 | { | |
1268 | nlm_symbol_type *nlm_sym; | |
1269 | bfd_size_type j; | |
1270 | ||
1271 | nlm_sym = (nlm_symbol_type *) sym; | |
1272 | for (j = 0; j < nlm_sym->rcnt; j++) | |
1273 | { | |
1274 | if (nlm_sym->relocs[j].section == sec) | |
1275 | { | |
1276 | *relptr = &nlm_sym->relocs[j].reloc; | |
1277 | (*relptr)->sym_ptr_ptr = symbols; | |
1278 | ++relptr; | |
1279 | ++ret; | |
1280 | } | |
1281 | } | |
1282 | } | |
1283 | } | |
1284 | ||
1285 | *relptr = NULL; | |
1286 | ||
1287 | return ret; | |
1288 | } | |
1289 | \f | |
1290 | /* Compute the section file positions for an NLM file. All variable | |
1291 | length data in the file headers must be set before this function is | |
1292 | called. If the variable length data is changed later, the | |
1293 | resulting object file will be incorrect. Unfortunately, there is | |
1294 | no way to check this. | |
1295 | ||
1296 | This routine also sets the Size and Offset fields in the fixed | |
1297 | header. | |
1298 | ||
1299 | It also looks over the symbols and moves any common symbols into | |
1300 | the .bss section; NLM has no way to represent a common symbol. | |
1301 | This approach means that either the symbols must already have been | |
1302 | set at this point, or there must be no common symbols. We need to | |
1303 | move the symbols at this point so that mangle_relocs can see the | |
1304 | final values. */ | |
1305 | ||
b34976b6 | 1306 | static bfd_boolean |
7920ce38 | 1307 | nlm_compute_section_file_positions (bfd *abfd) |
252b5132 RH |
1308 | { |
1309 | file_ptr sofar; | |
1310 | asection *sec; | |
1311 | bfd_vma text, data, bss; | |
1312 | bfd_vma text_low, data_low; | |
1313 | unsigned int text_align, data_align, other_align; | |
1314 | file_ptr text_ptr, data_ptr, other_ptr; | |
1315 | asection *bss_sec; | |
1316 | asymbol **sym_ptr_ptr; | |
1317 | ||
82e51918 | 1318 | if (abfd->output_has_begun) |
b34976b6 | 1319 | return TRUE; |
252b5132 RH |
1320 | |
1321 | /* Make sure we have a section to hold uninitialized data. */ | |
1322 | bss_sec = bfd_get_section_by_name (abfd, NLM_UNINITIALIZED_DATA_NAME); | |
1323 | if (bss_sec == NULL) | |
1324 | { | |
1325 | if (!add_bfd_section (abfd, NLM_UNINITIALIZED_DATA_NAME, | |
1326 | (file_ptr) 0, (bfd_size_type) 0, | |
1327 | SEC_ALLOC)) | |
b34976b6 | 1328 | return FALSE; |
252b5132 RH |
1329 | bss_sec = bfd_get_section_by_name (abfd, NLM_UNINITIALIZED_DATA_NAME); |
1330 | } | |
1331 | ||
b34976b6 | 1332 | abfd->output_has_begun = TRUE; |
252b5132 RH |
1333 | |
1334 | /* The fixed header. */ | |
1335 | sofar = nlm_optional_prefix_size (abfd) + nlm_fixed_header_size (abfd); | |
1336 | ||
1337 | /* The variable header. */ | |
1338 | sofar += (sizeof (nlm_variable_header (abfd)->descriptionLength) | |
1339 | + nlm_variable_header (abfd)->descriptionLength + 1 | |
1340 | + NLM_TARGET_LONG_SIZE /* stackSize */ | |
1341 | + NLM_TARGET_LONG_SIZE /* reserved */ | |
1342 | + sizeof (nlm_variable_header (abfd)->oldThreadName) | |
1343 | + sizeof (nlm_variable_header (abfd)->screenNameLength) | |
1344 | + nlm_variable_header (abfd)->screenNameLength + 1 | |
1345 | + sizeof (nlm_variable_header (abfd)->threadNameLength) | |
1346 | + nlm_variable_header (abfd)->threadNameLength + 1); | |
1347 | ||
1348 | /* The auxiliary headers. */ | |
7920ce38 | 1349 | if (find_nonzero (nlm_version_header (abfd), |
252b5132 RH |
1350 | sizeof (Nlm_Internal_Version_Header))) |
1351 | sofar += sizeof (Nlm_External_Version_Header); | |
7920ce38 | 1352 | if (find_nonzero (nlm_extended_header (abfd), |
252b5132 RH |
1353 | sizeof (Nlm_Internal_Extended_Header))) |
1354 | sofar += sizeof (Nlm_External_Extended_Header); | |
7920ce38 | 1355 | if (find_nonzero (nlm_copyright_header (abfd), |
252b5132 RH |
1356 | sizeof (Nlm_Internal_Copyright_Header))) |
1357 | sofar += (sizeof (Nlm_External_Copyright_Header) | |
1358 | + nlm_copyright_header (abfd)->copyrightMessageLength + 1); | |
7920ce38 | 1359 | if (find_nonzero (nlm_custom_header (abfd), |
252b5132 RH |
1360 | sizeof (Nlm_Internal_Custom_Header))) |
1361 | sofar += (sizeof (Nlm_External_Custom_Header) | |
1362 | + nlm_custom_header (abfd)->hdrLength); | |
7920ce38 | 1363 | if (find_nonzero (nlm_cygnus_ext_header (abfd), |
252b5132 RH |
1364 | sizeof (Nlm_Internal_Cygnus_Ext_Header))) |
1365 | sofar += sizeof (Nlm_External_Custom_Header); | |
1366 | ||
1367 | /* Compute the section file positions in two passes. First get the | |
1368 | sizes of the text and data sections, and then set the file | |
1369 | positions. This code aligns the sections in the file using the | |
1370 | same alignment restrictions that apply to the sections in memory; | |
1371 | this may not be necessary. */ | |
1372 | text = 0; | |
1373 | text_low = (bfd_vma) - 1; | |
1374 | text_align = 0; | |
1375 | data = 0; | |
1376 | data_low = (bfd_vma) - 1; | |
1377 | data_align = 0; | |
1378 | bss = 0; | |
1379 | other_align = 0; | |
7920ce38 | 1380 | for (sec = abfd->sections; sec != NULL; sec = sec->next) |
252b5132 RH |
1381 | { |
1382 | flagword f; | |
1383 | ||
eea6121a | 1384 | sec->size = BFD_ALIGN (sec->size, 1 << sec->alignment_power); |
252b5132 RH |
1385 | |
1386 | f = bfd_get_section_flags (abfd, sec); | |
1387 | if (f & SEC_CODE) | |
1388 | { | |
eea6121a | 1389 | text += sec->size; |
252b5132 RH |
1390 | if (bfd_get_section_vma (abfd, sec) < text_low) |
1391 | text_low = bfd_get_section_vma (abfd, sec); | |
1392 | if (sec->alignment_power > text_align) | |
1393 | text_align = sec->alignment_power; | |
1394 | } | |
1395 | else if (f & SEC_DATA) | |
1396 | { | |
eea6121a | 1397 | data += sec->size; |
252b5132 RH |
1398 | if (bfd_get_section_vma (abfd, sec) < data_low) |
1399 | data_low = bfd_get_section_vma (abfd, sec); | |
1400 | if (sec->alignment_power > data_align) | |
1401 | data_align = sec->alignment_power; | |
1402 | } | |
1403 | else if (f & SEC_HAS_CONTENTS) | |
1404 | { | |
1405 | if (sec->alignment_power > other_align) | |
1406 | other_align = sec->alignment_power; | |
1407 | } | |
1408 | else if (f & SEC_ALLOC) | |
eea6121a | 1409 | bss += sec->size; |
252b5132 RH |
1410 | } |
1411 | ||
1412 | nlm_set_text_low (abfd, text_low); | |
1413 | nlm_set_data_low (abfd, data_low); | |
1414 | ||
1415 | if (nlm_no_uninitialized_data (abfd)) | |
1416 | { | |
1417 | /* This NetWare format does not use uninitialized data. We must | |
1418 | increase the size of the data section. We will never wind up | |
1419 | writing those file locations, so they will remain zero. */ | |
1420 | data += bss; | |
1421 | bss = 0; | |
1422 | } | |
1423 | ||
1424 | text_ptr = BFD_ALIGN (sofar, 1 << text_align); | |
1425 | data_ptr = BFD_ALIGN (text_ptr + text, 1 << data_align); | |
1426 | other_ptr = BFD_ALIGN (data_ptr + data, 1 << other_align); | |
1427 | ||
1428 | /* Fill in some fields in the header for which we now have the | |
1429 | information. */ | |
1430 | nlm_fixed_header (abfd)->codeImageOffset = text_ptr; | |
1431 | nlm_fixed_header (abfd)->codeImageSize = text; | |
1432 | nlm_fixed_header (abfd)->dataImageOffset = data_ptr; | |
1433 | nlm_fixed_header (abfd)->dataImageSize = data; | |
1434 | nlm_fixed_header (abfd)->uninitializedDataSize = bss; | |
1435 | ||
7920ce38 | 1436 | for (sec = abfd->sections; sec != NULL; sec = sec->next) |
252b5132 RH |
1437 | { |
1438 | flagword f; | |
1439 | ||
1440 | f = bfd_get_section_flags (abfd, sec); | |
1441 | ||
1442 | if (f & SEC_CODE) | |
1443 | { | |
1444 | sec->filepos = text_ptr; | |
eea6121a | 1445 | text_ptr += sec->size; |
252b5132 RH |
1446 | } |
1447 | else if (f & SEC_DATA) | |
1448 | { | |
1449 | sec->filepos = data_ptr; | |
eea6121a | 1450 | data_ptr += sec->size; |
252b5132 RH |
1451 | } |
1452 | else if (f & SEC_HAS_CONTENTS) | |
1453 | { | |
1454 | sec->filepos = other_ptr; | |
eea6121a | 1455 | other_ptr += sec->size; |
252b5132 RH |
1456 | } |
1457 | } | |
1458 | ||
1459 | nlm_fixed_header (abfd)->relocationFixupOffset = other_ptr; | |
1460 | ||
1461 | /* Move all common symbols into the .bss section. */ | |
1462 | ||
1463 | sym_ptr_ptr = bfd_get_outsymbols (abfd); | |
1464 | if (sym_ptr_ptr != NULL) | |
1465 | { | |
1466 | asymbol **sym_end; | |
1467 | bfd_vma add; | |
1468 | ||
1469 | sym_end = sym_ptr_ptr + bfd_get_symcount (abfd); | |
1470 | add = 0; | |
1471 | for (; sym_ptr_ptr < sym_end; sym_ptr_ptr++) | |
1472 | { | |
1473 | asymbol *sym; | |
1474 | bfd_vma size; | |
1475 | ||
1476 | sym = *sym_ptr_ptr; | |
1477 | ||
1478 | if (!bfd_is_com_section (bfd_get_section (sym))) | |
1479 | continue; | |
1480 | ||
1481 | /* Put the common symbol in the .bss section, and increase | |
1482 | the size of the .bss section by the size of the common | |
1483 | symbol (which is the old value of the symbol). */ | |
1484 | sym->section = bss_sec; | |
1485 | size = sym->value; | |
eea6121a | 1486 | sym->value = bss_sec->size + add; |
252b5132 RH |
1487 | add += size; |
1488 | add = BFD_ALIGN (add, 1 << bss_sec->alignment_power); | |
1489 | } | |
1490 | if (add != 0) | |
1491 | { | |
1492 | if (nlm_no_uninitialized_data (abfd)) | |
1493 | { | |
1494 | /* We could handle this case, but so far it hasn't been | |
1495 | necessary. */ | |
1496 | abort (); | |
1497 | } | |
1498 | nlm_fixed_header (abfd)->uninitializedDataSize += add; | |
eea6121a | 1499 | bss_sec->size += add; |
252b5132 RH |
1500 | } |
1501 | } | |
1502 | ||
b34976b6 | 1503 | return TRUE; |
252b5132 RH |
1504 | } |
1505 | ||
1506 | /* Set the contents of a section. To do this we need to know where | |
1507 | the section is going to be located in the output file. That means | |
1508 | that the sizes of all the sections must be set, and all the | |
1509 | variable size header information must be known. */ | |
1510 | ||
b34976b6 | 1511 | bfd_boolean |
7920ce38 NC |
1512 | nlm_set_section_contents (bfd *abfd, |
1513 | asection *section, | |
1514 | const void * location, | |
1515 | file_ptr offset, | |
1516 | bfd_size_type count) | |
252b5132 | 1517 | { |
82e51918 AM |
1518 | if (! abfd->output_has_begun |
1519 | && ! nlm_compute_section_file_positions (abfd)) | |
b34976b6 | 1520 | return FALSE; |
252b5132 RH |
1521 | |
1522 | if (count == 0) | |
b34976b6 | 1523 | return TRUE; |
252b5132 RH |
1524 | |
1525 | /* i386 NetWare has a very restricted set of relocs. In order for | |
1526 | objcopy to work, the NLM i386 backend needs a chance to rework | |
1527 | the section contents so that its set of relocs will work. If all | |
1528 | the relocs are already acceptable, this will not do anything. */ | |
1529 | if (section->reloc_count != 0) | |
1530 | { | |
b34976b6 | 1531 | bfd_boolean (*mangle_relocs_func) |
7920ce38 | 1532 | (bfd *, asection *, const void *, bfd_vma, bfd_size_type); |
252b5132 RH |
1533 | |
1534 | mangle_relocs_func = nlm_mangle_relocs_func (abfd); | |
1535 | if (mangle_relocs_func != NULL) | |
1536 | { | |
1537 | if (!(*mangle_relocs_func) (abfd, section, location, | |
1538 | (bfd_vma) offset, count)) | |
b34976b6 | 1539 | return FALSE; |
252b5132 RH |
1540 | } |
1541 | } | |
1542 | ||
dc810e39 AM |
1543 | if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0 |
1544 | || bfd_bwrite (location, count, abfd) != count) | |
b34976b6 | 1545 | return FALSE; |
252b5132 | 1546 | |
b34976b6 | 1547 | return TRUE; |
252b5132 RH |
1548 | } |
1549 | ||
1550 | /* We need to sort a list of relocs associated with sections when we | |
1551 | write out the external relocs. */ | |
1552 | ||
1553 | static int | |
7920ce38 | 1554 | nlm_external_reloc_compare (const void *p1, const void *p2) |
252b5132 RH |
1555 | { |
1556 | const struct reloc_and_sec *r1 = (const struct reloc_and_sec *) p1; | |
1557 | const struct reloc_and_sec *r2 = (const struct reloc_and_sec *) p2; | |
1558 | int cmp; | |
1559 | ||
1560 | cmp = strcmp ((*r1->rel->sym_ptr_ptr)->name, | |
1561 | (*r2->rel->sym_ptr_ptr)->name); | |
1562 | if (cmp != 0) | |
1563 | return cmp; | |
1564 | ||
1565 | /* We sort by address within symbol to make the sort more stable and | |
1566 | increase the chances that different hosts will generate bit for | |
1567 | bit equivalent results. */ | |
1568 | return (int) (r1->rel->address - r2->rel->address); | |
1569 | } | |
1570 | ||
1571 | /* Write out an NLM file. We write out the information in this order: | |
1572 | fixed header | |
1573 | variable header | |
1574 | auxiliary headers | |
1575 | code sections | |
1576 | data sections | |
1577 | other sections (custom data, messages, help, shared NLM, RPC, | |
1578 | module dependencies) | |
1579 | relocation fixups | |
1580 | external references (imports) | |
1581 | public symbols (exports) | |
1582 | debugging records | |
1583 | This is similar to the order used by the NetWare tools; the | |
1584 | difference is that NetWare puts the sections other than code, data | |
1585 | and custom data at the end of the NLM. It is convenient for us to | |
1586 | know where the sections are going to be before worrying about the | |
1587 | size of the other information. | |
1588 | ||
1589 | By the time this function is called, all the section data should | |
1590 | have been output using set_section_contents. Note that custom | |
1591 | data, the message file, the help file, the shared NLM file, the RPC | |
1592 | data, and the module dependencies are all considered to be | |
1593 | sections; the caller is responsible for filling in the offset and | |
1594 | length fields in the NLM headers. The relocation fixups and | |
1595 | imports are both obtained from the list of relocs attached to each | |
1596 | section. The exports and debugging records are obtained from the | |
1597 | list of outsymbols. */ | |
1598 | ||
b34976b6 | 1599 | bfd_boolean |
7920ce38 | 1600 | nlm_write_object_contents (bfd *abfd) |
252b5132 RH |
1601 | { |
1602 | asection *sec; | |
7920ce38 | 1603 | bfd_boolean (*write_import_func) (bfd *, asection *, arelent *); |
252b5132 RH |
1604 | bfd_size_type external_reloc_count, internal_reloc_count, i, c; |
1605 | struct reloc_and_sec *external_relocs; | |
1606 | asymbol **sym_ptr_ptr; | |
1607 | file_ptr last; | |
7920ce38 | 1608 | bfd_boolean (*write_prefix_func) (bfd *); |
252b5132 | 1609 | unsigned char *fixed_header = NULL; |
dc810e39 AM |
1610 | file_ptr pos; |
1611 | bfd_size_type amt; | |
252b5132 | 1612 | |
7920ce38 | 1613 | fixed_header = bfd_malloc (nlm_fixed_header_size (abfd)); |
252b5132 RH |
1614 | if (fixed_header == NULL) |
1615 | goto error_return; | |
1616 | ||
82e51918 AM |
1617 | if (! abfd->output_has_begun |
1618 | && ! nlm_compute_section_file_positions (abfd)) | |
252b5132 RH |
1619 | goto error_return; |
1620 | ||
1621 | /* Write out the variable length headers. */ | |
dc810e39 AM |
1622 | pos = nlm_optional_prefix_size (abfd) + nlm_fixed_header_size (abfd); |
1623 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
252b5132 | 1624 | goto error_return; |
82e51918 AM |
1625 | if (! nlm_swap_variable_header_out (abfd) |
1626 | || ! nlm_swap_auxiliary_headers_out (abfd)) | |
252b5132 RH |
1627 | { |
1628 | bfd_set_error (bfd_error_system_call); | |
1629 | goto error_return; | |
1630 | } | |
1631 | ||
1632 | /* A weak check on whether the section file positions were | |
1633 | reasonable. */ | |
de52dba4 | 1634 | if (bfd_tell (abfd) > nlm_fixed_header (abfd)->codeImageOffset) |
252b5132 RH |
1635 | { |
1636 | bfd_set_error (bfd_error_invalid_operation); | |
1637 | goto error_return; | |
1638 | } | |
1639 | ||
1640 | /* Advance to the relocs. */ | |
1641 | if (bfd_seek (abfd, nlm_fixed_header (abfd)->relocationFixupOffset, | |
1642 | SEEK_SET) != 0) | |
1643 | goto error_return; | |
1644 | ||
1645 | /* The format of the relocation entries is dependent upon the | |
1646 | particular target. We use an external routine to write the reloc | |
1647 | out. */ | |
1648 | write_import_func = nlm_write_import_func (abfd); | |
1649 | ||
1650 | /* Write out the internal relocation fixups. While we're looping | |
1651 | over the relocs, we also count the external relocs, which is | |
1652 | needed when they are written out below. */ | |
1653 | internal_reloc_count = 0; | |
1654 | external_reloc_count = 0; | |
7920ce38 | 1655 | for (sec = abfd->sections; sec != NULL; sec = sec->next) |
252b5132 RH |
1656 | { |
1657 | arelent **rel_ptr_ptr, **rel_end; | |
1658 | ||
1659 | if (sec->reloc_count == 0) | |
1660 | continue; | |
1661 | ||
1662 | /* We can only represent relocs within a code or data | |
1663 | section. We ignore them for a debugging section. */ | |
1664 | if ((bfd_get_section_flags (abfd, sec) & (SEC_CODE | SEC_DATA)) == 0) | |
1665 | continue; | |
1666 | ||
1667 | /* We need to know how to write out imports */ | |
1668 | if (write_import_func == NULL) | |
1669 | { | |
1670 | bfd_set_error (bfd_error_invalid_operation); | |
1671 | goto error_return; | |
1672 | } | |
1673 | ||
1674 | rel_ptr_ptr = sec->orelocation; | |
1675 | rel_end = rel_ptr_ptr + sec->reloc_count; | |
1676 | for (; rel_ptr_ptr < rel_end; rel_ptr_ptr++) | |
1677 | { | |
1678 | arelent *rel; | |
1679 | asymbol *sym; | |
1680 | ||
1681 | rel = *rel_ptr_ptr; | |
1682 | sym = *rel->sym_ptr_ptr; | |
1683 | ||
1684 | if (! bfd_is_und_section (bfd_get_section (sym))) | |
1685 | { | |
1686 | ++internal_reloc_count; | |
82e51918 | 1687 | if (! (*write_import_func) (abfd, sec, rel)) |
252b5132 RH |
1688 | goto error_return; |
1689 | } | |
1690 | else | |
1691 | ++external_reloc_count; | |
1692 | } | |
1693 | } | |
1694 | nlm_fixed_header (abfd)->numberOfRelocationFixups = internal_reloc_count; | |
1695 | ||
1696 | /* Write out the imports (relocs against external symbols). These | |
1697 | are output as a symbol name followed by all the relocs for that | |
1698 | symbol, so we must first gather together all the relocs against | |
1699 | external symbols and sort them. */ | |
dc810e39 | 1700 | amt = external_reloc_count * sizeof (struct reloc_and_sec); |
7920ce38 NC |
1701 | external_relocs = bfd_alloc (abfd, amt); |
1702 | if (external_relocs == NULL) | |
252b5132 RH |
1703 | goto error_return; |
1704 | i = 0; | |
7920ce38 | 1705 | for (sec = abfd->sections; sec != NULL; sec = sec->next) |
252b5132 RH |
1706 | { |
1707 | arelent **rel_ptr_ptr, **rel_end; | |
1708 | ||
1709 | if (sec->reloc_count == 0) | |
1710 | continue; | |
1711 | ||
1712 | rel_ptr_ptr = sec->orelocation; | |
1713 | rel_end = rel_ptr_ptr + sec->reloc_count; | |
1714 | for (; rel_ptr_ptr < rel_end; rel_ptr_ptr++) | |
1715 | { | |
1716 | arelent *rel; | |
1717 | asymbol *sym; | |
1718 | ||
1719 | rel = *rel_ptr_ptr; | |
1720 | sym = *rel->sym_ptr_ptr; | |
1721 | ||
1722 | if (! bfd_is_und_section (bfd_get_section (sym))) | |
1723 | continue; | |
1724 | ||
1725 | external_relocs[i].rel = rel; | |
1726 | external_relocs[i].sec = sec; | |
1727 | ++i; | |
1728 | } | |
1729 | } | |
1730 | ||
1731 | BFD_ASSERT (i == external_reloc_count); | |
1732 | ||
1733 | /* Sort the external relocs by name. */ | |
7920ce38 | 1734 | qsort (external_relocs, (size_t) external_reloc_count, |
252b5132 RH |
1735 | sizeof (struct reloc_and_sec), nlm_external_reloc_compare); |
1736 | ||
1737 | /* Write out the external relocs. */ | |
1738 | nlm_fixed_header (abfd)->externalReferencesOffset = bfd_tell (abfd); | |
1739 | c = 0; | |
1740 | i = 0; | |
1741 | while (i < external_reloc_count) | |
1742 | { | |
1743 | arelent *rel; | |
1744 | asymbol *sym; | |
1745 | bfd_size_type j, cnt; | |
1746 | ||
1747 | ++c; | |
1748 | ||
1749 | rel = external_relocs[i].rel; | |
1750 | sym = *rel->sym_ptr_ptr; | |
1751 | ||
1752 | cnt = 0; | |
1753 | for (j = i; | |
1754 | (j < external_reloc_count | |
1755 | && *external_relocs[j].rel->sym_ptr_ptr == sym); | |
1756 | j++) | |
1757 | ++cnt; | |
1758 | ||
82e51918 AM |
1759 | if (! (*nlm_write_external_func (abfd)) (abfd, cnt, sym, |
1760 | &external_relocs[i])) | |
252b5132 RH |
1761 | goto error_return; |
1762 | ||
1763 | i += cnt; | |
1764 | } | |
1765 | ||
1766 | nlm_fixed_header (abfd)->numberOfExternalReferences = c; | |
1767 | ||
1768 | /* Write out the public symbols (exports). */ | |
1769 | sym_ptr_ptr = bfd_get_outsymbols (abfd); | |
7920ce38 | 1770 | if (sym_ptr_ptr != NULL) |
252b5132 | 1771 | { |
7920ce38 NC |
1772 | bfd_vma (*get_public_offset_func) (bfd *, asymbol *); |
1773 | bfd_boolean (*write_export_func) (bfd *, asymbol *, bfd_vma); | |
252b5132 RH |
1774 | |
1775 | asymbol **sym_end; | |
1776 | ||
1777 | nlm_fixed_header (abfd)->publicsOffset = bfd_tell (abfd); | |
1778 | get_public_offset_func = nlm_get_public_offset_func (abfd); | |
1779 | write_export_func = nlm_write_export_func (abfd); | |
1780 | c = 0; | |
1781 | sym_end = sym_ptr_ptr + bfd_get_symcount (abfd); | |
1782 | for (; sym_ptr_ptr < sym_end; sym_ptr_ptr++) | |
1783 | { | |
1784 | asymbol *sym; | |
1785 | bfd_byte len; | |
1786 | bfd_vma offset; | |
1787 | bfd_byte temp[NLM_TARGET_LONG_SIZE]; | |
1788 | ||
1789 | sym = *sym_ptr_ptr; | |
1790 | ||
1791 | if ((sym->flags & (BSF_EXPORT | BSF_GLOBAL)) == 0 | |
1792 | || bfd_is_und_section (bfd_get_section (sym))) | |
1793 | continue; | |
1794 | ||
1795 | ++c; | |
1796 | ||
1797 | if (get_public_offset_func) | |
1798 | { | |
1799 | /* Most backends can use the code below, but | |
1800 | unfortunately some use a different scheme. */ | |
1801 | offset = (*get_public_offset_func) (abfd, sym); | |
1802 | } | |
1803 | else | |
1804 | { | |
1805 | offset = bfd_asymbol_value (sym); | |
1806 | sec = sym->section; | |
1807 | if (sec->flags & SEC_CODE) | |
1808 | { | |
1809 | offset -= nlm_get_text_low (abfd); | |
1810 | offset |= NLM_HIBIT; | |
1811 | } | |
1812 | else if (sec->flags & (SEC_DATA | SEC_ALLOC)) | |
1813 | { | |
1814 | /* SEC_ALLOC is for the .bss section. */ | |
1815 | offset -= nlm_get_data_low (abfd); | |
1816 | } | |
1817 | else | |
1818 | { | |
1819 | /* We can't handle an exported symbol that is not in | |
1820 | the code or data segment. */ | |
1821 | bfd_set_error (bfd_error_invalid_operation); | |
1822 | goto error_return; | |
1823 | } | |
1824 | } | |
1825 | ||
1826 | if (write_export_func) | |
1827 | { | |
82e51918 | 1828 | if (! (*write_export_func) (abfd, sym, offset)) |
252b5132 RH |
1829 | goto error_return; |
1830 | } | |
1831 | else | |
1832 | { | |
1833 | len = strlen (sym->name); | |
dc810e39 | 1834 | if ((bfd_bwrite (&len, (bfd_size_type) sizeof (bfd_byte), abfd) |
252b5132 | 1835 | != sizeof (bfd_byte)) |
dc810e39 | 1836 | || bfd_bwrite (sym->name, (bfd_size_type) len, abfd) != len) |
252b5132 RH |
1837 | goto error_return; |
1838 | ||
1839 | put_word (abfd, offset, temp); | |
dc810e39 AM |
1840 | if (bfd_bwrite (temp, (bfd_size_type) sizeof (temp), abfd) |
1841 | != sizeof (temp)) | |
252b5132 RH |
1842 | goto error_return; |
1843 | } | |
1844 | } | |
1845 | nlm_fixed_header (abfd)->numberOfPublics = c; | |
1846 | ||
1847 | /* Write out the debugging records. The NLM conversion program | |
1848 | wants to be able to inhibit this, so as a special hack if | |
1849 | debugInfoOffset is set to -1 we don't write any debugging | |
1850 | information. This can not be handled by fiddling with the | |
1851 | symbol table, because exported symbols appear in both the | |
1852 | exported symbol list and the debugging information. */ | |
1853 | if (nlm_fixed_header (abfd)->debugInfoOffset == (file_ptr) - 1) | |
1854 | { | |
1855 | nlm_fixed_header (abfd)->debugInfoOffset = 0; | |
1856 | nlm_fixed_header (abfd)->numberOfDebugRecords = 0; | |
1857 | } | |
1858 | else | |
1859 | { | |
1860 | nlm_fixed_header (abfd)->debugInfoOffset = bfd_tell (abfd); | |
1861 | c = 0; | |
1862 | sym_ptr_ptr = bfd_get_outsymbols (abfd); | |
1863 | sym_end = sym_ptr_ptr + bfd_get_symcount (abfd); | |
1864 | for (; sym_ptr_ptr < sym_end; sym_ptr_ptr++) | |
1865 | { | |
1866 | asymbol *sym; | |
1867 | bfd_byte type, len; | |
1868 | bfd_vma offset; | |
1869 | bfd_byte temp[NLM_TARGET_LONG_SIZE]; | |
1870 | ||
1871 | sym = *sym_ptr_ptr; | |
1872 | ||
1873 | /* The NLM notion of a debugging symbol is actually what | |
1874 | BFD calls a local or global symbol. What BFD calls a | |
1875 | debugging symbol NLM does not understand at all. */ | |
1876 | if ((sym->flags & (BSF_LOCAL | BSF_GLOBAL | BSF_EXPORT)) == 0 | |
1877 | || (sym->flags & BSF_DEBUGGING) != 0 | |
1878 | || bfd_is_und_section (bfd_get_section (sym))) | |
1879 | continue; | |
1880 | ||
1881 | ++c; | |
1882 | ||
1883 | offset = bfd_asymbol_value (sym); | |
1884 | sec = sym->section; | |
1885 | if (sec->flags & SEC_CODE) | |
1886 | { | |
1887 | offset -= nlm_get_text_low (abfd); | |
1888 | type = 1; | |
1889 | } | |
1890 | else if (sec->flags & (SEC_DATA | SEC_ALLOC)) | |
1891 | { | |
1892 | /* SEC_ALLOC is for the .bss section. */ | |
1893 | offset -= nlm_get_data_low (abfd); | |
1894 | type = 0; | |
1895 | } | |
1896 | else | |
1897 | type = 2; | |
1898 | ||
1899 | /* The type is 0 for data, 1 for code, 2 for absolute. */ | |
dc810e39 | 1900 | if (bfd_bwrite (&type, (bfd_size_type) sizeof (bfd_byte), abfd) |
252b5132 RH |
1901 | != sizeof (bfd_byte)) |
1902 | goto error_return; | |
1903 | ||
1904 | put_word (abfd, offset, temp); | |
dc810e39 AM |
1905 | if (bfd_bwrite (temp, (bfd_size_type) sizeof (temp), abfd) |
1906 | != sizeof (temp)) | |
252b5132 RH |
1907 | goto error_return; |
1908 | ||
1909 | len = strlen (sym->name); | |
dc810e39 | 1910 | if ((bfd_bwrite (&len, (bfd_size_type) sizeof (bfd_byte), abfd) |
252b5132 | 1911 | != sizeof (bfd_byte)) |
dc810e39 | 1912 | || bfd_bwrite (sym->name, (bfd_size_type) len, abfd) != len) |
252b5132 RH |
1913 | goto error_return; |
1914 | } | |
1915 | nlm_fixed_header (abfd)->numberOfDebugRecords = c; | |
1916 | } | |
1917 | } | |
1918 | ||
1919 | /* NLMLINK fills in offset values even if there is no data, so we do | |
1920 | the same. */ | |
1921 | last = bfd_tell (abfd); | |
1922 | if (nlm_fixed_header (abfd)->codeImageOffset == 0) | |
1923 | nlm_fixed_header (abfd)->codeImageOffset = last; | |
1924 | if (nlm_fixed_header (abfd)->dataImageOffset == 0) | |
1925 | nlm_fixed_header (abfd)->dataImageOffset = last; | |
1926 | if (nlm_fixed_header (abfd)->customDataOffset == 0) | |
1927 | nlm_fixed_header (abfd)->customDataOffset = last; | |
1928 | if (nlm_fixed_header (abfd)->moduleDependencyOffset == 0) | |
1929 | nlm_fixed_header (abfd)->moduleDependencyOffset = last; | |
1930 | if (nlm_fixed_header (abfd)->relocationFixupOffset == 0) | |
1931 | nlm_fixed_header (abfd)->relocationFixupOffset = last; | |
1932 | if (nlm_fixed_header (abfd)->externalReferencesOffset == 0) | |
1933 | nlm_fixed_header (abfd)->externalReferencesOffset = last; | |
1934 | if (nlm_fixed_header (abfd)->publicsOffset == 0) | |
1935 | nlm_fixed_header (abfd)->publicsOffset = last; | |
1936 | if (nlm_fixed_header (abfd)->debugInfoOffset == 0) | |
1937 | nlm_fixed_header (abfd)->debugInfoOffset = last; | |
1938 | ||
1939 | /* At this point everything has been written out except the fixed | |
1940 | header. */ | |
1941 | memcpy (nlm_fixed_header (abfd)->signature, nlm_signature (abfd), | |
1942 | NLM_SIGNATURE_SIZE); | |
1943 | nlm_fixed_header (abfd)->version = NLM_HEADER_VERSION; | |
1944 | nlm_fixed_header (abfd)->codeStartOffset = | |
1945 | (bfd_get_start_address (abfd) | |
1946 | - nlm_get_text_low (abfd)); | |
1947 | ||
1948 | /* We have no convenient way for the caller to pass in the exit | |
1949 | procedure or the check unload procedure, so the caller must set | |
1950 | the values in the header to the values of the symbols. */ | |
1951 | nlm_fixed_header (abfd)->exitProcedureOffset -= nlm_get_text_low (abfd); | |
1952 | if (nlm_fixed_header (abfd)->checkUnloadProcedureOffset != 0) | |
1953 | nlm_fixed_header (abfd)->checkUnloadProcedureOffset -= | |
1954 | nlm_get_text_low (abfd); | |
1955 | ||
dc810e39 | 1956 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) |
252b5132 RH |
1957 | goto error_return; |
1958 | ||
1959 | write_prefix_func = nlm_write_prefix_func (abfd); | |
1960 | if (write_prefix_func) | |
1961 | { | |
82e51918 | 1962 | if (! (*write_prefix_func) (abfd)) |
252b5132 RH |
1963 | goto error_return; |
1964 | } | |
1965 | ||
1966 | BFD_ASSERT ((bfd_size_type) bfd_tell (abfd) | |
1967 | == nlm_optional_prefix_size (abfd)); | |
1968 | ||
1969 | nlm_swap_fixed_header_out (abfd, nlm_fixed_header (abfd), fixed_header); | |
dc810e39 | 1970 | if (bfd_bwrite (fixed_header, nlm_fixed_header_size (abfd), abfd) |
252b5132 RH |
1971 | != nlm_fixed_header_size (abfd)) |
1972 | goto error_return; | |
1973 | ||
1974 | if (fixed_header != NULL) | |
1975 | free (fixed_header); | |
b34976b6 | 1976 | return TRUE; |
252b5132 RH |
1977 | |
1978 | error_return: | |
1979 | if (fixed_header != NULL) | |
1980 | free (fixed_header); | |
b34976b6 | 1981 | return FALSE; |
252b5132 | 1982 | } |