Commit | Line | Data |
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e135f41b | 1 | /* BFD back-end for PDP-11 a.out binaries. |
b3adc24a | 2 | Copyright (C) 2001-2020 Free Software Foundation, Inc. |
e135f41b | 3 | |
42ef282f | 4 | This file is part of BFD, the Binary File Descriptor library. |
e135f41b | 5 | |
42ef282f NC |
6 | This program is free software; you can redistribute it and/or modify |
7 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 8 | the Free Software Foundation; either version 3 of the License, or |
42ef282f | 9 | (at your option) any later version. |
e135f41b | 10 | |
42ef282f NC |
11 | This program is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
e135f41b | 15 | |
42ef282f NC |
16 | You should have received a copy of the GNU General Public License |
17 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
19 | MA 02110-1301, USA. */ | |
20 | ||
e135f41b NC |
21 | |
22 | /* BFD backend for PDP-11, running 2.11BSD in particular. | |
23 | ||
24 | This file was hacked up by looking hard at the existing vaxnetbsd | |
25 | back end and the header files in 2.11BSD. | |
26 | ||
27 | TODO | |
28 | * support for V7 file formats | |
29 | * support for overlay object files (see 2.11 a.out(5)) | |
30 | * support for old and very old archives | |
31 | (see 2.11 ar(5), historical section) | |
dc810e39 | 32 | |
e135f41b NC |
33 | Search for TODO to find other areas needing more work. */ |
34 | ||
35 | #define BYTES_IN_WORD 2 | |
36 | #define BYTES_IN_LONG 4 | |
37 | #define ARCH_SIZE 16 | |
38 | #undef TARGET_IS_BIG_ENDIAN_P | |
39 | ||
0d1cc75d | 40 | #define TARGET_PAGE_SIZE 8192 |
e135f41b NC |
41 | #define SEGMENT__SIZE TARGET_PAGE_SIZE |
42 | ||
43 | #define DEFAULT_ARCH bfd_arch_pdp11 | |
07d6d2b8 | 44 | #define DEFAULT_MID M_PDP11 |
e135f41b | 45 | |
e43d48cc AM |
46 | /* Do not "beautify" the CONCAT* macro args. Traditional C will not |
47 | remove whitespace added here, and thus will fail to concatenate | |
48 | the tokens. */ | |
49 | #define MY(OP) CONCAT2 (pdp11_aout_,OP) | |
50 | ||
e135f41b NC |
51 | /* This needs to start with a.out so GDB knows it is an a.out variant. */ |
52 | #define TARGETNAME "a.out-pdp11" | |
53 | ||
54 | /* This is the normal load address for executables. */ | |
55 | #define TEXT_START_ADDR 0 | |
56 | ||
57 | /* The header is not included in the text segment. */ | |
58 | #define N_HEADER_IN_TEXT(x) 0 | |
59 | ||
e135f41b | 60 | /* There is no flags field. */ |
bbb1afc8 | 61 | #define N_FLAGS(execp) 0 |
e135f41b | 62 | |
bbb1afc8 | 63 | #define N_SET_FLAGS(execp, flags) do { } while (0) |
a77e83b7 AM |
64 | #define N_BADMAG(x) (N_MAGIC(x) != OMAGIC \ |
65 | && N_MAGIC(x) != NMAGIC \ | |
fa1477dc | 66 | && N_MAGIC(x) != IMAGIC \ |
a77e83b7 | 67 | && N_MAGIC(x) != ZMAGIC) |
e135f41b | 68 | |
3db64b00 | 69 | #include "sysdep.h" |
7a6e0d89 | 70 | #include <limits.h> |
e135f41b NC |
71 | #include "bfd.h" |
72 | ||
73 | #define external_exec pdp11_external_exec | |
74 | struct pdp11_external_exec | |
116c20d2 NC |
75 | { |
76 | bfd_byte e_info[2]; /* Magic number. */ | |
77 | bfd_byte e_text[2]; /* Length of text section in bytes. */ | |
78 | bfd_byte e_data[2]; /* Length of data section in bytes. */ | |
79 | bfd_byte e_bss[2]; /* Length of bss area in bytes. */ | |
80 | bfd_byte e_syms[2]; /* Length of symbol table in bytes. */ | |
81 | bfd_byte e_entry[2]; /* Start address. */ | |
82 | bfd_byte e_unused[2]; /* Not used. */ | |
83 | bfd_byte e_flag[2]; /* Relocation info stripped. */ | |
07d6d2b8 | 84 | bfd_byte e_relocatable; /* Ugly hack. */ |
116c20d2 | 85 | }; |
e135f41b NC |
86 | |
87 | #define EXEC_BYTES_SIZE (8 * 2) | |
88 | ||
89 | #define A_MAGIC1 OMAGIC | |
90 | #define OMAGIC 0407 /* ...object file or impure executable. */ | |
91 | #define A_MAGIC2 NMAGIC | |
116c20d2 NC |
92 | #define NMAGIC 0410 /* Pure executable. */ |
93 | #define ZMAGIC 0413 /* Demand-paged executable. */ | |
fa1477dc SC |
94 | #define IMAGIC 0411 /* Separated I&D. */ |
95 | #define A_MAGIC3 IMAGIC | |
116c20d2 NC |
96 | #define A_MAGIC4 0405 /* Overlay. */ |
97 | #define A_MAGIC5 0430 /* Auto-overlay (nonseparate). */ | |
98 | #define A_MAGIC6 0431 /* Auto-overlay (separate). */ | |
e135f41b NC |
99 | #define QMAGIC 0 |
100 | #define BMAGIC 0 | |
101 | ||
102 | #define A_FLAG_RELOC_STRIPPED 0x0001 | |
103 | ||
104 | #define external_nlist pdp11_external_nlist | |
105 | struct pdp11_external_nlist | |
116c20d2 NC |
106 | { |
107 | bfd_byte e_unused[2]; /* Unused. */ | |
108 | bfd_byte e_strx[2]; /* Index into string table of name. */ | |
109 | bfd_byte e_type[1]; /* Type of symbol. */ | |
110 | bfd_byte e_ovly[1]; /* Overlay number. */ | |
111 | bfd_byte e_value[2]; /* Value of symbol. */ | |
112 | }; | |
e135f41b NC |
113 | |
114 | #define EXTERNAL_NLIST_SIZE 8 | |
115 | ||
116 | #define N_TXTOFF(x) (EXEC_BYTES_SIZE) | |
bbb1afc8 AM |
117 | #define N_DATOFF(x) (N_TXTOFF(x) + (x)->a_text) |
118 | #define N_TRELOFF(x) (N_DATOFF(x) + (x)->a_data) | |
119 | #define N_DRELOFF(x) (N_TRELOFF(x) + (x)->a_trsize) | |
120 | #define N_SYMOFF(x) (N_DRELOFF(x) + (x)->a_drsize) | |
121 | #define N_STROFF(x) (N_SYMOFF(x) + (x)->a_syms) | |
e135f41b NC |
122 | |
123 | #define WRITE_HEADERS(abfd, execp) pdp11_aout_write_headers (abfd, execp) | |
124 | ||
e135f41b NC |
125 | #include "libbfd.h" |
126 | #include "libaout.h" | |
127 | ||
128 | #define SWAP_MAGIC(ext) bfd_getl16 (ext) | |
129 | ||
130 | #define MY_entry_is_text_address 1 | |
131 | ||
132 | #define MY_write_object_contents MY(write_object_contents) | |
116c20d2 | 133 | static bfd_boolean MY(write_object_contents) (bfd *); |
e135f41b NC |
134 | #define MY_text_includes_header 1 |
135 | ||
e135f41b NC |
136 | #define MY_BFD_TARGET |
137 | ||
138 | #include "aout-target.h" | |
139 | ||
116c20d2 | 140 | /* Start of modified aoutx.h. */ |
e135f41b NC |
141 | #define KEEPIT udata.i |
142 | ||
116c20d2 | 143 | #include <string.h> /* For strchr and friends. */ |
e135f41b NC |
144 | #include "bfd.h" |
145 | #include "sysdep.h" | |
3882b010 | 146 | #include "safe-ctype.h" |
e135f41b NC |
147 | #include "bfdlink.h" |
148 | ||
149 | #include "libaout.h" | |
e135f41b NC |
150 | #include "aout/aout64.h" |
151 | #include "aout/stab_gnu.h" | |
152 | #include "aout/ar.h" | |
153 | ||
154 | #undef N_TYPE | |
155 | #undef N_UNDF | |
156 | #undef N_ABS | |
157 | #undef N_TEXT | |
158 | #undef N_DATA | |
159 | #undef N_BSS | |
160 | #undef N_REG | |
161 | #undef N_FN | |
162 | #undef N_EXT | |
23c8270e | 163 | #undef N_STAB |
116c20d2 NC |
164 | #define N_TYPE 0x1f /* Type mask. */ |
165 | #define N_UNDF 0x00 /* Undefined. */ | |
166 | #define N_ABS 0x01 /* Absolute. */ | |
167 | #define N_TEXT 0x02 /* Text segment. */ | |
168 | #define N_DATA 0x03 /* Data segment. */ | |
169 | #define N_BSS 0x04 /* Bss segment. */ | |
170 | #define N_REG 0x14 /* Register symbol. */ | |
171 | #define N_FN 0x1f /* File name. */ | |
172 | #define N_EXT 0x20 /* External flag. */ | |
23c8270e | 173 | #define N_STAB 0xc0 /* Not relevant; modified aout64.h's 0xe0 to avoid N_EXT. */ |
e135f41b NC |
174 | |
175 | #define RELOC_SIZE 2 | |
176 | ||
116c20d2 NC |
177 | #define RELFLG 0x0001 /* PC-relative flag. */ |
178 | #define RTYPE 0x000e /* Type mask. */ | |
179 | #define RIDXMASK 0xfff0 /* Index mask. */ | |
e135f41b | 180 | |
116c20d2 NC |
181 | #define RABS 0x00 /* Absolute. */ |
182 | #define RTEXT 0x02 /* Text. */ | |
183 | #define RDATA 0x04 /* Data. */ | |
184 | #define RBSS 0x06 /* Bss. */ | |
185 | #define REXT 0x08 /* External. */ | |
e135f41b NC |
186 | |
187 | #define RINDEX(x) (((x) & 0xfff0) >> 4) | |
188 | ||
e135f41b NC |
189 | #ifndef MY_final_link_relocate |
190 | #define MY_final_link_relocate _bfd_final_link_relocate | |
191 | #endif | |
192 | ||
193 | #ifndef MY_relocate_contents | |
194 | #define MY_relocate_contents _bfd_relocate_contents | |
195 | #endif | |
196 | ||
116c20d2 NC |
197 | /* A hash table used for header files with N_BINCL entries. */ |
198 | ||
199 | struct aout_link_includes_table | |
200 | { | |
201 | struct bfd_hash_table root; | |
202 | }; | |
203 | ||
204 | /* A linked list of totals that we have found for a particular header | |
205 | file. */ | |
206 | ||
207 | struct aout_link_includes_totals | |
208 | { | |
209 | struct aout_link_includes_totals *next; | |
210 | bfd_vma total; | |
211 | }; | |
212 | ||
213 | /* An entry in the header file hash table. */ | |
214 | ||
215 | struct aout_link_includes_entry | |
216 | { | |
217 | struct bfd_hash_entry root; | |
218 | /* List of totals we have found for this file. */ | |
219 | struct aout_link_includes_totals *totals; | |
220 | }; | |
221 | ||
222 | /* During the final link step we need to pass around a bunch of | |
223 | information, so we do it in an instance of this structure. */ | |
224 | ||
225 | struct aout_final_link_info | |
226 | { | |
227 | /* General link information. */ | |
228 | struct bfd_link_info *info; | |
229 | /* Output bfd. */ | |
230 | bfd *output_bfd; | |
231 | /* Reloc file positions. */ | |
232 | file_ptr treloff, dreloff; | |
233 | /* File position of symbols. */ | |
234 | file_ptr symoff; | |
235 | /* String table. */ | |
236 | struct bfd_strtab_hash *strtab; | |
237 | /* Header file hash table. */ | |
238 | struct aout_link_includes_table includes; | |
239 | /* A buffer large enough to hold the contents of any section. */ | |
240 | bfd_byte *contents; | |
241 | /* A buffer large enough to hold the relocs of any section. */ | |
242 | void * relocs; | |
243 | /* A buffer large enough to hold the symbol map of any input BFD. */ | |
244 | int *symbol_map; | |
245 | /* A buffer large enough to hold output symbols of any input BFD. */ | |
246 | struct external_nlist *output_syms; | |
247 | }; | |
248 | ||
fa1477dc SC |
249 | /* Copy of the link_info.separate_code boolean to select the output format with |
250 | separate instruction and data spaces selected by --imagic */ | |
251 | static bfd_boolean separate_i_d = FALSE; | |
252 | ||
e135f41b NC |
253 | reloc_howto_type howto_table_pdp11[] = |
254 | { | |
07d6d2b8 | 255 | /* type rs size bsz pcrel bitpos ovrf sf name part_inpl readmask setmask pcdone */ |
b34976b6 AM |
256 | HOWTO( 0, 0, 1, 16, FALSE, 0, complain_overflow_signed,0,"16", TRUE, 0x0000ffff,0x0000ffff, FALSE), |
257 | HOWTO( 1, 0, 1, 16, TRUE, 0, complain_overflow_signed,0,"DISP16", TRUE, 0x0000ffff,0x0000ffff, FALSE), | |
e135f41b NC |
258 | }; |
259 | ||
260 | #define TABLE_SIZE(TABLE) (sizeof(TABLE)/sizeof(TABLE[0])) | |
261 | ||
116c20d2 | 262 | |
13e570f8 | 263 | static bfd_boolean aout_link_check_archive_element (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, const char *, bfd_boolean *); |
07d6d2b8 AM |
264 | static bfd_boolean aout_link_add_object_symbols (bfd *, struct bfd_link_info *); |
265 | static bfd_boolean aout_link_add_symbols (bfd *, struct bfd_link_info *); | |
266 | static bfd_boolean aout_link_write_symbols (struct aout_final_link_info *, bfd *); | |
116c20d2 NC |
267 | |
268 | ||
e135f41b | 269 | reloc_howto_type * |
116c20d2 NC |
270 | NAME (aout, reloc_type_lookup) (bfd * abfd ATTRIBUTE_UNUSED, |
271 | bfd_reloc_code_real_type code) | |
e135f41b NC |
272 | { |
273 | switch (code) | |
274 | { | |
275 | case BFD_RELOC_16: | |
276 | return &howto_table_pdp11[0]; | |
277 | case BFD_RELOC_16_PCREL: | |
278 | return &howto_table_pdp11[1]; | |
279 | default: | |
116c20d2 | 280 | return NULL; |
e135f41b NC |
281 | } |
282 | } | |
283 | ||
157090f7 AM |
284 | reloc_howto_type * |
285 | NAME (aout, reloc_name_lookup) (bfd *abfd ATTRIBUTE_UNUSED, | |
286 | const char *r_name) | |
287 | { | |
288 | unsigned int i; | |
289 | ||
290 | for (i = 0; | |
291 | i < sizeof (howto_table_pdp11) / sizeof (howto_table_pdp11[0]); | |
292 | i++) | |
293 | if (howto_table_pdp11[i].name != NULL | |
294 | && strcasecmp (howto_table_pdp11[i].name, r_name) == 0) | |
295 | return &howto_table_pdp11[i]; | |
296 | ||
297 | return NULL; | |
298 | } | |
299 | ||
e135f41b | 300 | static int |
116c20d2 | 301 | pdp11_aout_write_headers (bfd *abfd, struct internal_exec *execp) |
e135f41b NC |
302 | { |
303 | struct external_exec exec_bytes; | |
e135f41b NC |
304 | |
305 | if (adata(abfd).magic == undecided_magic) | |
3a8c4a5b | 306 | NAME (aout, adjust_sizes_and_vmas) (abfd); |
e135f41b NC |
307 | |
308 | execp->a_syms = bfd_get_symcount (abfd) * EXTERNAL_NLIST_SIZE; | |
309 | execp->a_entry = bfd_get_start_address (abfd); | |
310 | ||
116c20d2 NC |
311 | if (obj_textsec (abfd)->reloc_count > 0 |
312 | || obj_datasec (abfd)->reloc_count > 0) | |
e135f41b NC |
313 | { |
314 | execp->a_trsize = execp->a_text; | |
315 | execp->a_drsize = execp->a_data; | |
316 | } | |
317 | else | |
318 | { | |
319 | execp->a_trsize = 0; | |
320 | execp->a_drsize = 0; | |
321 | } | |
322 | ||
116c20d2 | 323 | NAME (aout, swap_exec_header_out) (abfd, execp, & exec_bytes); |
e135f41b NC |
324 | |
325 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) | |
b34976b6 | 326 | return FALSE; |
e135f41b | 327 | |
116c20d2 | 328 | if (bfd_bwrite ((void *) &exec_bytes, (bfd_size_type) EXEC_BYTES_SIZE, abfd) |
e135f41b | 329 | != EXEC_BYTES_SIZE) |
b34976b6 | 330 | return FALSE; |
e135f41b | 331 | |
116c20d2 NC |
332 | /* Now write out reloc info, followed by syms and strings. */ |
333 | if (bfd_get_outsymbols (abfd) != NULL | |
e135f41b NC |
334 | && bfd_get_symcount (abfd) != 0) |
335 | { | |
bbb1afc8 | 336 | if (bfd_seek (abfd, (file_ptr) (N_SYMOFF (execp)), SEEK_SET) != 0) |
b34976b6 | 337 | return FALSE; |
e135f41b | 338 | |
116c20d2 | 339 | if (! NAME (aout, write_syms) (abfd)) |
b34976b6 | 340 | return FALSE; |
e135f41b NC |
341 | } |
342 | ||
116c20d2 NC |
343 | if (obj_textsec (abfd)->reloc_count > 0 |
344 | || obj_datasec (abfd)->reloc_count > 0) | |
e135f41b | 345 | { |
bbb1afc8 | 346 | if (bfd_seek (abfd, (file_ptr) (N_TRELOFF (execp)), SEEK_SET) != 0 |
116c20d2 | 347 | || !NAME (aout, squirt_out_relocs) (abfd, obj_textsec (abfd)) |
bbb1afc8 | 348 | || bfd_seek (abfd, (file_ptr) (N_DRELOFF (execp)), SEEK_SET) != 0 |
68ffbac6 | 349 | || !NAME (aout, squirt_out_relocs) (abfd, obj_datasec (abfd))) |
b34976b6 | 350 | return FALSE; |
e135f41b NC |
351 | } |
352 | ||
b34976b6 | 353 | return TRUE; |
dc810e39 | 354 | } |
e135f41b NC |
355 | |
356 | /* Write an object file. | |
357 | Section contents have already been written. We write the | |
358 | file header, symbols, and relocation. */ | |
359 | ||
b34976b6 | 360 | static bfd_boolean |
116c20d2 | 361 | MY(write_object_contents) (bfd *abfd) |
e135f41b NC |
362 | { |
363 | struct internal_exec *execp = exec_hdr (abfd); | |
364 | ||
365 | /* We must make certain that the magic number has been set. This | |
366 | will normally have been done by set_section_contents, but only if | |
367 | there actually are some section contents. */ | |
368 | if (! abfd->output_has_begun) | |
3a8c4a5b | 369 | NAME (aout, adjust_sizes_and_vmas) (abfd); |
e135f41b NC |
370 | |
371 | obj_reloc_entry_size (abfd) = RELOC_SIZE; | |
372 | ||
116c20d2 | 373 | return WRITE_HEADERS (abfd, execp); |
e135f41b NC |
374 | } |
375 | ||
116c20d2 NC |
376 | /* Swap the information in an executable header @var{raw_bytes} taken |
377 | from a raw byte stream memory image into the internal exec header | |
378 | structure "execp". */ | |
e135f41b NC |
379 | |
380 | #ifndef NAME_swap_exec_header_in | |
381 | void | |
116c20d2 NC |
382 | NAME (aout, swap_exec_header_in) (bfd *abfd, |
383 | struct external_exec *bytes, | |
384 | struct internal_exec *execp) | |
e135f41b | 385 | { |
e135f41b NC |
386 | /* The internal_exec structure has some fields that are unused in this |
387 | configuration (IE for i960), so ensure that all such uninitialized | |
388 | fields are zero'd out. There are places where two of these structs | |
116c20d2 NC |
389 | are memcmp'd, and thus the contents do matter. */ |
390 | memset ((void *) execp, 0, sizeof (struct internal_exec)); | |
e135f41b NC |
391 | /* Now fill in fields in the execp, from the bytes in the raw data. */ |
392 | execp->a_info = GET_MAGIC (abfd, bytes->e_info); | |
393 | execp->a_text = GET_WORD (abfd, bytes->e_text); | |
394 | execp->a_data = GET_WORD (abfd, bytes->e_data); | |
395 | execp->a_bss = GET_WORD (abfd, bytes->e_bss); | |
396 | execp->a_syms = GET_WORD (abfd, bytes->e_syms); | |
397 | execp->a_entry = GET_WORD (abfd, bytes->e_entry); | |
398 | ||
399 | if (GET_WORD (abfd, bytes->e_flag) & A_FLAG_RELOC_STRIPPED) | |
400 | { | |
401 | execp->a_trsize = 0; | |
402 | execp->a_drsize = 0; | |
403 | } | |
404 | else | |
405 | { | |
406 | execp->a_trsize = execp->a_text; | |
407 | execp->a_drsize = execp->a_data; | |
408 | } | |
409 | } | |
116c20d2 | 410 | #define NAME_swap_exec_header_in NAME (aout, swap_exec_header_in) |
e135f41b NC |
411 | #endif |
412 | ||
116c20d2 NC |
413 | /* Swap the information in an internal exec header structure |
414 | "execp" into the buffer "bytes" ready for writing to disk. */ | |
e135f41b | 415 | void |
116c20d2 NC |
416 | NAME (aout, swap_exec_header_out) (bfd *abfd, |
417 | struct internal_exec *execp, | |
418 | struct external_exec *bytes) | |
e135f41b | 419 | { |
116c20d2 | 420 | /* Now fill in fields in the raw data, from the fields in the exec struct. */ |
e135f41b NC |
421 | PUT_MAGIC (abfd, execp->a_info, bytes->e_info); |
422 | PUT_WORD (abfd, execp->a_text, bytes->e_text); | |
423 | PUT_WORD (abfd, execp->a_data, bytes->e_data); | |
424 | PUT_WORD (abfd, execp->a_bss, bytes->e_bss); | |
425 | PUT_WORD (abfd, execp->a_syms, bytes->e_syms); | |
426 | PUT_WORD (abfd, execp->a_entry, bytes->e_entry); | |
427 | PUT_WORD (abfd, 0, bytes->e_unused); | |
428 | ||
116c20d2 NC |
429 | if ((execp->a_trsize == 0 || execp->a_text == 0) |
430 | && (execp->a_drsize == 0 || execp->a_data == 0)) | |
431 | PUT_WORD (abfd, A_FLAG_RELOC_STRIPPED, bytes->e_flag); | |
432 | else if (execp->a_trsize == execp->a_text | |
433 | && execp->a_drsize == execp->a_data) | |
434 | PUT_WORD (abfd, 0, bytes->e_flag); | |
e135f41b NC |
435 | else |
436 | { | |
116c20d2 | 437 | /* TODO: print a proper warning message. */ |
e135f41b NC |
438 | fprintf (stderr, "BFD:%s:%d: internal error\n", __FILE__, __LINE__); |
439 | PUT_WORD (abfd, 0, bytes->e_flag); | |
440 | } | |
441 | } | |
442 | ||
443 | /* Make all the section for an a.out file. */ | |
444 | ||
b34976b6 | 445 | bfd_boolean |
116c20d2 | 446 | NAME (aout, make_sections) (bfd *abfd) |
e135f41b | 447 | { |
116c20d2 | 448 | if (obj_textsec (abfd) == NULL && bfd_make_section (abfd, ".text") == NULL) |
b34976b6 | 449 | return FALSE; |
116c20d2 | 450 | if (obj_datasec (abfd) == NULL && bfd_make_section (abfd, ".data") == NULL) |
b34976b6 | 451 | return FALSE; |
116c20d2 | 452 | if (obj_bsssec (abfd) == NULL && bfd_make_section (abfd, ".bss") == NULL) |
b34976b6 AM |
453 | return FALSE; |
454 | return TRUE; | |
e135f41b NC |
455 | } |
456 | ||
116c20d2 NC |
457 | /* Some a.out variant thinks that the file open in ABFD |
458 | checking is an a.out file. Do some more checking, and set up | |
459 | for access if it really is. Call back to the calling | |
460 | environment's "finish up" function just before returning, to | |
461 | handle any last-minute setup. */ | |
e135f41b | 462 | |
cb001c0d | 463 | bfd_cleanup |
116c20d2 NC |
464 | NAME (aout, some_aout_object_p) (bfd *abfd, |
465 | struct internal_exec *execp, | |
cb001c0d | 466 | bfd_cleanup (*callback_to_real_object_p) (bfd *)) |
e135f41b NC |
467 | { |
468 | struct aout_data_struct *rawptr, *oldrawptr; | |
cb001c0d | 469 | bfd_cleanup cleanup; |
986f0783 | 470 | size_t amt = sizeof (struct aout_data_struct); |
e135f41b | 471 | |
116c20d2 | 472 | rawptr = bfd_zalloc (abfd, amt); |
e135f41b NC |
473 | if (rawptr == NULL) |
474 | return 0; | |
475 | ||
476 | oldrawptr = abfd->tdata.aout_data; | |
477 | abfd->tdata.aout_data = rawptr; | |
478 | ||
dc12032b | 479 | /* Copy the contents of the old tdata struct. */ |
e135f41b NC |
480 | if (oldrawptr != NULL) |
481 | *abfd->tdata.aout_data = *oldrawptr; | |
482 | ||
483 | abfd->tdata.aout_data->a.hdr = &rawptr->e; | |
116c20d2 | 484 | *(abfd->tdata.aout_data->a.hdr) = *execp; /* Copy in the internal_exec struct. */ |
e135f41b NC |
485 | execp = abfd->tdata.aout_data->a.hdr; |
486 | ||
116c20d2 | 487 | /* Set the file flags. */ |
e135f41b NC |
488 | abfd->flags = BFD_NO_FLAGS; |
489 | if (execp->a_drsize || execp->a_trsize) | |
490 | abfd->flags |= HAS_RELOC; | |
116c20d2 | 491 | /* Setting of EXEC_P has been deferred to the bottom of this function. */ |
e135f41b NC |
492 | if (execp->a_syms) |
493 | abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS; | |
bbb1afc8 | 494 | if (N_DYNAMIC (execp)) |
e135f41b NC |
495 | abfd->flags |= DYNAMIC; |
496 | ||
bbb1afc8 | 497 | if (N_MAGIC (execp) == ZMAGIC) |
e135f41b NC |
498 | { |
499 | abfd->flags |= D_PAGED | WP_TEXT; | |
500 | adata (abfd).magic = z_magic; | |
501 | } | |
bbb1afc8 | 502 | else if (N_MAGIC (execp) == NMAGIC) |
e135f41b NC |
503 | { |
504 | abfd->flags |= WP_TEXT; | |
505 | adata (abfd).magic = n_magic; | |
506 | } | |
bbb1afc8 | 507 | else if (N_MAGIC (execp) == OMAGIC) |
e135f41b | 508 | adata (abfd).magic = o_magic; |
fa1477dc SC |
509 | else if (N_MAGIC (execp) == IMAGIC) |
510 | adata (abfd).magic = i_magic; | |
e135f41b NC |
511 | else |
512 | { | |
513 | /* Should have been checked with N_BADMAG before this routine | |
514 | was called. */ | |
515 | abort (); | |
516 | } | |
517 | ||
ed48ec2e | 518 | abfd->start_address = execp->a_entry; |
e135f41b | 519 | |
116c20d2 | 520 | obj_aout_symbols (abfd) = NULL; |
ed48ec2e | 521 | abfd->symcount = execp->a_syms / sizeof (struct external_nlist); |
e135f41b NC |
522 | |
523 | /* The default relocation entry size is that of traditional V7 Unix. */ | |
524 | obj_reloc_entry_size (abfd) = RELOC_SIZE; | |
525 | ||
116c20d2 | 526 | /* The default symbol entry size is that of traditional Unix. */ |
e135f41b NC |
527 | obj_symbol_entry_size (abfd) = EXTERNAL_NLIST_SIZE; |
528 | ||
529 | #ifdef USE_MMAP | |
530 | bfd_init_window (&obj_aout_sym_window (abfd)); | |
531 | bfd_init_window (&obj_aout_string_window (abfd)); | |
532 | #endif | |
116c20d2 | 533 | |
e135f41b NC |
534 | obj_aout_external_syms (abfd) = NULL; |
535 | obj_aout_external_strings (abfd) = NULL; | |
536 | obj_aout_sym_hashes (abfd) = NULL; | |
537 | ||
116c20d2 | 538 | if (! NAME (aout, make_sections) (abfd)) |
e135f41b NC |
539 | return NULL; |
540 | ||
eea6121a AM |
541 | obj_datasec (abfd)->size = execp->a_data; |
542 | obj_bsssec (abfd)->size = execp->a_bss; | |
e135f41b NC |
543 | |
544 | obj_textsec (abfd)->flags = | |
545 | (execp->a_trsize != 0 | |
546 | ? (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS | SEC_RELOC) | |
547 | : (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS)); | |
548 | obj_datasec (abfd)->flags = | |
549 | (execp->a_drsize != 0 | |
550 | ? (SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS | SEC_RELOC) | |
551 | : (SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS)); | |
552 | obj_bsssec (abfd)->flags = SEC_ALLOC; | |
553 | ||
554 | #ifdef THIS_IS_ONLY_DOCUMENTATION | |
555 | /* The common code can't fill in these things because they depend | |
556 | on either the start address of the text segment, the rounding | |
557 | up of virtual addresses between segments, or the starting file | |
558 | position of the text segment -- all of which varies among different | |
559 | versions of a.out. */ | |
560 | ||
561 | /* Call back to the format-dependent code to fill in the rest of the | |
562 | fields and do any further cleanup. Things that should be filled | |
563 | in by the callback: */ | |
e135f41b NC |
564 | struct exec *execp = exec_hdr (abfd); |
565 | ||
bbb1afc8 | 566 | obj_textsec (abfd)->size = N_TXTSIZE (execp); |
116c20d2 | 567 | /* Data and bss are already filled in since they're so standard. */ |
e135f41b | 568 | |
116c20d2 | 569 | /* The virtual memory addresses of the sections. */ |
bbb1afc8 AM |
570 | obj_textsec (abfd)->vma = N_TXTADDR (execp); |
571 | obj_datasec (abfd)->vma = N_DATADDR (execp); | |
572 | obj_bsssec (abfd)->vma = N_BSSADDR (execp); | |
e135f41b | 573 | |
116c20d2 | 574 | /* The file offsets of the sections. */ |
bbb1afc8 AM |
575 | obj_textsec (abfd)->filepos = N_TXTOFF (execp); |
576 | obj_datasec (abfd)->filepos = N_DATOFF (execp); | |
e135f41b | 577 | |
116c20d2 | 578 | /* The file offsets of the relocation info. */ |
bbb1afc8 AM |
579 | obj_textsec (abfd)->rel_filepos = N_TRELOFF (execp); |
580 | obj_datasec (abfd)->rel_filepos = N_DRELOFF (execp); | |
e135f41b NC |
581 | |
582 | /* The file offsets of the string table and symbol table. */ | |
bbb1afc8 AM |
583 | obj_str_filepos (abfd) = N_STROFF (execp); |
584 | obj_sym_filepos (abfd) = N_SYMOFF (execp); | |
e135f41b NC |
585 | |
586 | /* Determine the architecture and machine type of the object file. */ | |
587 | abfd->obj_arch = bfd_arch_obscure; | |
588 | ||
589 | adata(abfd)->page_size = TARGET_PAGE_SIZE; | |
590 | adata(abfd)->segment_size = SEGMENT_SIZE; | |
591 | adata(abfd)->exec_bytes_size = EXEC_BYTES_SIZE; | |
592 | ||
cb001c0d | 593 | return _bfd_no_cleanup; |
e135f41b NC |
594 | |
595 | /* The architecture is encoded in various ways in various a.out variants, | |
596 | or is not encoded at all in some of them. The relocation size depends | |
597 | on the architecture and the a.out variant. Finally, the return value | |
598 | is the bfd_target vector in use. If an error occurs, return zero and | |
599 | set bfd_error to the appropriate error code. | |
600 | ||
601 | Formats such as b.out, which have additional fields in the a.out | |
602 | header, should cope with them in this callback as well. */ | |
116c20d2 | 603 | #endif /* DOCUMENTATION */ |
e135f41b | 604 | |
cb001c0d | 605 | cleanup = (*callback_to_real_object_p)(abfd); |
e135f41b NC |
606 | |
607 | /* Now that the segment addresses have been worked out, take a better | |
608 | guess at whether the file is executable. If the entry point | |
609 | is within the text segment, assume it is. (This makes files | |
610 | executable even if their entry point address is 0, as long as | |
611 | their text starts at zero.). | |
612 | ||
613 | This test had to be changed to deal with systems where the text segment | |
614 | runs at a different location than the default. The problem is that the | |
615 | entry address can appear to be outside the text segment, thus causing an | |
616 | erroneous conclusion that the file isn't executable. | |
617 | ||
618 | To fix this, we now accept any non-zero entry point as an indication of | |
619 | executability. This will work most of the time, since only the linker | |
620 | sets the entry point, and that is likely to be non-zero for most systems. */ | |
621 | ||
622 | if (execp->a_entry != 0 | |
623 | || (execp->a_entry >= obj_textsec(abfd)->vma | |
eea6121a | 624 | && execp->a_entry < obj_textsec(abfd)->vma + obj_textsec(abfd)->size)) |
e135f41b NC |
625 | abfd->flags |= EXEC_P; |
626 | #ifdef STAT_FOR_EXEC | |
627 | else | |
628 | { | |
629 | struct stat stat_buf; | |
630 | ||
631 | /* The original heuristic doesn't work in some important cases. | |
07d6d2b8 AM |
632 | The a.out file has no information about the text start |
633 | address. For files (like kernels) linked to non-standard | |
634 | addresses (ld -Ttext nnn) the entry point may not be between | |
635 | the default text start (obj_textsec(abfd)->vma) and | |
636 | (obj_textsec(abfd)->vma) + text size. This is not just a mach | |
637 | issue. Many kernels are loaded at non standard addresses. */ | |
e135f41b NC |
638 | if (abfd->iostream != NULL |
639 | && (abfd->flags & BFD_IN_MEMORY) == 0 | |
640 | && (fstat(fileno((FILE *) (abfd->iostream)), &stat_buf) == 0) | |
641 | && ((stat_buf.st_mode & 0111) != 0)) | |
642 | abfd->flags |= EXEC_P; | |
643 | } | |
644 | #endif /* STAT_FOR_EXEC */ | |
645 | ||
cb001c0d | 646 | if (!cleanup) |
e135f41b NC |
647 | { |
648 | free (rawptr); | |
649 | abfd->tdata.aout_data = oldrawptr; | |
650 | } | |
cb001c0d | 651 | return cleanup; |
e135f41b NC |
652 | } |
653 | ||
116c20d2 | 654 | /* Initialize ABFD for use with a.out files. */ |
e135f41b | 655 | |
b34976b6 | 656 | bfd_boolean |
116c20d2 | 657 | NAME (aout, mkobject) (bfd *abfd) |
e135f41b NC |
658 | { |
659 | struct aout_data_struct *rawptr; | |
986f0783 | 660 | size_t amt = sizeof (struct aout_data_struct); |
e135f41b NC |
661 | |
662 | bfd_set_error (bfd_error_system_call); | |
663 | ||
116c20d2 NC |
664 | /* Use an intermediate variable for clarity. */ |
665 | rawptr = bfd_zalloc (abfd, amt); | |
e135f41b NC |
666 | |
667 | if (rawptr == NULL) | |
b34976b6 | 668 | return FALSE; |
e135f41b NC |
669 | |
670 | abfd->tdata.aout_data = rawptr; | |
671 | exec_hdr (abfd) = &(rawptr->e); | |
672 | ||
116c20d2 NC |
673 | obj_textsec (abfd) = NULL; |
674 | obj_datasec (abfd) = NULL; | |
675 | obj_bsssec (abfd) = NULL; | |
e135f41b | 676 | |
b34976b6 | 677 | return TRUE; |
e135f41b NC |
678 | } |
679 | ||
116c20d2 NC |
680 | /* Keep track of machine architecture and machine type for |
681 | a.out's. Return the <<machine_type>> for a particular | |
682 | architecture and machine, or <<M_UNKNOWN>> if that exact architecture | |
683 | and machine can't be represented in a.out format. | |
e135f41b | 684 | |
116c20d2 NC |
685 | If the architecture is understood, machine type 0 (default) |
686 | is always understood. */ | |
e135f41b NC |
687 | |
688 | enum machine_type | |
116c20d2 NC |
689 | NAME (aout, machine_type) (enum bfd_architecture arch, |
690 | unsigned long machine, | |
691 | bfd_boolean *unknown) | |
e135f41b NC |
692 | { |
693 | enum machine_type arch_flags; | |
694 | ||
695 | arch_flags = M_UNKNOWN; | |
b34976b6 | 696 | *unknown = TRUE; |
e135f41b NC |
697 | |
698 | switch (arch) | |
699 | { | |
700 | case bfd_arch_sparc: | |
701 | if (machine == 0 | |
702 | || machine == bfd_mach_sparc | |
703 | || machine == bfd_mach_sparc_sparclite | |
704 | || machine == bfd_mach_sparc_v9) | |
705 | arch_flags = M_SPARC; | |
706 | else if (machine == bfd_mach_sparc_sparclet) | |
707 | arch_flags = M_SPARCLET; | |
708 | break; | |
709 | ||
e135f41b | 710 | case bfd_arch_i386: |
250d94fd AM |
711 | if (machine == 0 |
712 | || machine == bfd_mach_i386_i386 | |
713 | || machine == bfd_mach_i386_i386_intel_syntax) | |
714 | arch_flags = M_386; | |
e135f41b NC |
715 | break; |
716 | ||
e135f41b NC |
717 | case bfd_arch_arm: |
718 | if (machine == 0) arch_flags = M_ARM; | |
719 | break; | |
720 | ||
721 | case bfd_arch_mips: | |
722 | switch (machine) | |
723 | { | |
724 | case 0: | |
725 | case 2000: | |
726 | case bfd_mach_mips3000: | |
07d6d2b8 | 727 | arch_flags = M_MIPS1; |
e135f41b | 728 | break; |
116c20d2 | 729 | case bfd_mach_mips4000: /* MIPS3 */ |
e135f41b | 730 | case bfd_mach_mips4400: |
116c20d2 NC |
731 | case bfd_mach_mips8000: /* MIPS4 */ |
732 | case bfd_mach_mips6000: /* Real MIPS2: */ | |
07d6d2b8 | 733 | arch_flags = M_MIPS2; |
e135f41b NC |
734 | break; |
735 | default: | |
736 | arch_flags = M_UNKNOWN; | |
737 | break; | |
738 | } | |
739 | break; | |
740 | ||
741 | case bfd_arch_ns32k: | |
742 | switch (machine) | |
743 | { | |
07d6d2b8 | 744 | case 0: arch_flags = M_NS32532; break; |
e135f41b NC |
745 | case 32032: arch_flags = M_NS32032; break; |
746 | case 32532: arch_flags = M_NS32532; break; | |
747 | default: arch_flags = M_UNKNOWN; break; | |
748 | } | |
749 | break; | |
750 | ||
751 | case bfd_arch_pdp11: | |
752 | /* TODO: arch_flags = M_PDP11; */ | |
b34976b6 | 753 | *unknown = FALSE; |
e135f41b NC |
754 | break; |
755 | ||
756 | case bfd_arch_vax: | |
b34976b6 | 757 | *unknown = FALSE; |
e135f41b | 758 | break; |
dc810e39 | 759 | |
e135f41b NC |
760 | default: |
761 | arch_flags = M_UNKNOWN; | |
762 | } | |
763 | ||
764 | if (arch_flags != M_UNKNOWN) | |
b34976b6 | 765 | *unknown = FALSE; |
e135f41b NC |
766 | |
767 | return arch_flags; | |
768 | } | |
769 | ||
116c20d2 NC |
770 | /* Set the architecture and the machine of the ABFD to the |
771 | values ARCH and MACHINE. Verify that @ABFD's format | |
772 | can support the architecture required. */ | |
e135f41b | 773 | |
b34976b6 | 774 | bfd_boolean |
116c20d2 NC |
775 | NAME (aout, set_arch_mach) (bfd *abfd, |
776 | enum bfd_architecture arch, | |
777 | unsigned long machine) | |
e135f41b NC |
778 | { |
779 | if (! bfd_default_set_arch_mach (abfd, arch, machine)) | |
b34976b6 | 780 | return FALSE; |
e135f41b NC |
781 | |
782 | if (arch != bfd_arch_unknown) | |
783 | { | |
b34976b6 | 784 | bfd_boolean unknown; |
e135f41b | 785 | |
116c20d2 | 786 | NAME (aout, machine_type) (arch, machine, &unknown); |
e135f41b | 787 | if (unknown) |
b34976b6 | 788 | return FALSE; |
e135f41b NC |
789 | } |
790 | ||
791 | obj_reloc_entry_size (abfd) = RELOC_SIZE; | |
792 | ||
793 | return (*aout_backend_info(abfd)->set_sizes) (abfd); | |
794 | } | |
795 | ||
796 | static void | |
116c20d2 | 797 | adjust_o_magic (bfd *abfd, struct internal_exec *execp) |
e135f41b NC |
798 | { |
799 | file_ptr pos = adata (abfd).exec_bytes_size; | |
800 | bfd_vma vma = 0; | |
801 | int pad = 0; | |
dda2980f AM |
802 | asection *text = obj_textsec (abfd); |
803 | asection *data = obj_datasec (abfd); | |
804 | asection *bss = obj_bsssec (abfd); | |
e135f41b NC |
805 | |
806 | /* Text. */ | |
dda2980f AM |
807 | text->filepos = pos; |
808 | if (!text->user_set_vma) | |
809 | text->vma = vma; | |
e135f41b | 810 | else |
dda2980f | 811 | vma = text->vma; |
e135f41b | 812 | |
dda2980f AM |
813 | pos += execp->a_text; |
814 | vma += execp->a_text; | |
e135f41b NC |
815 | |
816 | /* Data. */ | |
dda2980f | 817 | if (!data->user_set_vma) |
e135f41b | 818 | { |
e135f41b NC |
819 | pos += pad; |
820 | vma += pad; | |
dda2980f | 821 | data->vma = vma; |
e135f41b NC |
822 | } |
823 | else | |
dda2980f AM |
824 | vma = data->vma; |
825 | execp->a_text += pad; | |
826 | ||
827 | data->filepos = pos; | |
828 | pos += data->size; | |
829 | vma += data->size; | |
e135f41b NC |
830 | |
831 | /* BSS. */ | |
dda2980f | 832 | if (!bss->user_set_vma) |
e135f41b | 833 | { |
e135f41b NC |
834 | pos += pad; |
835 | vma += pad; | |
dda2980f | 836 | bss->vma = vma; |
e135f41b | 837 | } |
fa1477dc | 838 | else if (data->size > 0 || bss->size > 0) /* PR25677: for objcopy --extract-symbol */ |
e135f41b | 839 | { |
08da05b0 | 840 | /* The VMA of the .bss section is set by the VMA of the |
07d6d2b8 AM |
841 | .data section plus the size of the .data section. We may |
842 | need to add padding bytes to make this true. */ | |
dda2980f AM |
843 | pad = bss->vma - vma; |
844 | if (pad < 0) | |
845 | pad = 0; | |
846 | pos += pad; | |
e135f41b | 847 | } |
dda2980f AM |
848 | execp->a_data = data->size + pad; |
849 | bss->filepos = pos; | |
850 | execp->a_bss = bss->size; | |
e135f41b | 851 | |
bbb1afc8 | 852 | N_SET_MAGIC (execp, OMAGIC); |
e135f41b NC |
853 | } |
854 | ||
855 | static void | |
116c20d2 | 856 | adjust_z_magic (bfd *abfd, struct internal_exec *execp) |
e135f41b NC |
857 | { |
858 | bfd_size_type data_pad, text_pad; | |
859 | file_ptr text_end; | |
dc810e39 | 860 | const struct aout_backend_data *abdp; |
dda2980f AM |
861 | /* TRUE if text includes exec header. */ |
862 | bfd_boolean ztih; | |
863 | asection *text = obj_textsec (abfd); | |
864 | asection *data = obj_datasec (abfd); | |
865 | asection *bss = obj_bsssec (abfd); | |
dc810e39 | 866 | |
e135f41b NC |
867 | abdp = aout_backend_info (abfd); |
868 | ||
869 | /* Text. */ | |
870 | ztih = (abdp != NULL | |
871 | && (abdp->text_includes_header | |
872 | || obj_aout_subformat (abfd) == q_magic_format)); | |
dda2980f AM |
873 | text->filepos = (ztih |
874 | ? adata (abfd).exec_bytes_size | |
875 | : adata (abfd).zmagic_disk_block_size); | |
876 | if (!text->user_set_vma) | |
e135f41b NC |
877 | { |
878 | /* ?? Do we really need to check for relocs here? */ | |
dda2980f AM |
879 | text->vma = ((abfd->flags & HAS_RELOC) |
880 | ? 0 | |
881 | : (ztih | |
882 | ? abdp->default_text_vma + adata (abfd).exec_bytes_size | |
883 | : abdp->default_text_vma)); | |
e135f41b NC |
884 | text_pad = 0; |
885 | } | |
886 | else | |
887 | { | |
888 | /* The .text section is being loaded at an unusual address. We | |
07d6d2b8 AM |
889 | may need to pad it such that the .data section starts at a page |
890 | boundary. */ | |
e135f41b | 891 | if (ztih) |
dda2980f | 892 | text_pad = ((text->filepos - text->vma) |
e135f41b NC |
893 | & (adata (abfd).page_size - 1)); |
894 | else | |
dda2980f | 895 | text_pad = (-text->vma |
e135f41b NC |
896 | & (adata (abfd).page_size - 1)); |
897 | } | |
898 | ||
899 | /* Find start of data. */ | |
900 | if (ztih) | |
901 | { | |
dda2980f | 902 | text_end = text->filepos + execp->a_text; |
e135f41b NC |
903 | text_pad += BFD_ALIGN (text_end, adata (abfd).page_size) - text_end; |
904 | } | |
905 | else | |
906 | { | |
907 | /* Note that if page_size == zmagic_disk_block_size, then | |
908 | filepos == page_size, and this case is the same as the ztih | |
909 | case. */ | |
dda2980f | 910 | text_end = execp->a_text; |
e135f41b | 911 | text_pad += BFD_ALIGN (text_end, adata (abfd).page_size) - text_end; |
dda2980f | 912 | text_end += text->filepos; |
e135f41b | 913 | } |
dda2980f | 914 | execp->a_text += text_pad; |
e135f41b NC |
915 | |
916 | /* Data. */ | |
dda2980f | 917 | if (!data->user_set_vma) |
e135f41b NC |
918 | { |
919 | bfd_vma vma; | |
dda2980f AM |
920 | vma = text->vma + execp->a_text; |
921 | data->vma = BFD_ALIGN (vma, adata (abfd).segment_size); | |
e135f41b NC |
922 | } |
923 | if (abdp && abdp->zmagic_mapped_contiguous) | |
924 | { | |
dda2980f AM |
925 | text_pad = data->vma - (text->vma + execp->a_text); |
926 | /* Only pad the text section if the data | |
927 | section is going to be placed after it. */ | |
928 | if (text_pad > 0) | |
929 | execp->a_text += text_pad; | |
e135f41b | 930 | } |
dda2980f | 931 | data->filepos = text->filepos + execp->a_text; |
dc810e39 | 932 | |
e135f41b | 933 | /* Fix up exec header while we're at it. */ |
e135f41b | 934 | if (ztih && (!abdp || (abdp && !abdp->exec_header_not_counted))) |
dda2980f | 935 | execp->a_text += adata (abfd).exec_bytes_size; |
bbb1afc8 | 936 | N_SET_MAGIC (execp, ZMAGIC); |
e135f41b NC |
937 | |
938 | /* Spec says data section should be rounded up to page boundary. */ | |
dda2980f AM |
939 | execp->a_data = align_power (data->size, bss->alignment_power); |
940 | execp->a_data = BFD_ALIGN (execp->a_data, adata (abfd).page_size); | |
941 | data_pad = execp->a_data - data->size; | |
e135f41b NC |
942 | |
943 | /* BSS. */ | |
dda2980f AM |
944 | if (!bss->user_set_vma) |
945 | bss->vma = data->vma + execp->a_data; | |
e135f41b NC |
946 | /* If the BSS immediately follows the data section and extra space |
947 | in the page is left after the data section, fudge data | |
948 | in the header so that the bss section looks smaller by that | |
949 | amount. We'll start the bss section there, and lie to the OS. | |
950 | (Note that a linker script, as well as the above assignment, | |
951 | could have explicitly set the BSS vma to immediately follow | |
952 | the data section.) */ | |
dda2980f AM |
953 | if (align_power (bss->vma, bss->alignment_power) == data->vma + execp->a_data) |
954 | execp->a_bss = data_pad > bss->size ? 0 : bss->size - data_pad; | |
e135f41b | 955 | else |
dda2980f | 956 | execp->a_bss = bss->size; |
e135f41b NC |
957 | } |
958 | ||
959 | static void | |
116c20d2 | 960 | adjust_n_magic (bfd *abfd, struct internal_exec *execp) |
e135f41b | 961 | { |
dda2980f | 962 | file_ptr pos = adata (abfd).exec_bytes_size; |
e135f41b NC |
963 | bfd_vma vma = 0; |
964 | int pad; | |
dda2980f AM |
965 | asection *text = obj_textsec (abfd); |
966 | asection *data = obj_datasec (abfd); | |
967 | asection *bss = obj_bsssec (abfd); | |
dc810e39 | 968 | |
e135f41b | 969 | /* Text. */ |
dda2980f AM |
970 | text->filepos = pos; |
971 | if (!text->user_set_vma) | |
972 | text->vma = vma; | |
e135f41b | 973 | else |
dda2980f AM |
974 | vma = text->vma; |
975 | pos += execp->a_text; | |
976 | vma += execp->a_text; | |
e135f41b NC |
977 | |
978 | /* Data. */ | |
dda2980f AM |
979 | data->filepos = pos; |
980 | if (!data->user_set_vma) | |
981 | data->vma = BFD_ALIGN (vma, adata (abfd).segment_size); | |
982 | vma = data->vma; | |
dc810e39 | 983 | |
e135f41b | 984 | /* Since BSS follows data immediately, see if it needs alignment. */ |
dda2980f AM |
985 | vma += data->size; |
986 | pad = align_power (vma, bss->alignment_power) - vma; | |
987 | execp->a_data = data->size + pad; | |
988 | pos += execp->a_data; | |
e135f41b NC |
989 | |
990 | /* BSS. */ | |
dda2980f AM |
991 | if (!bss->user_set_vma) |
992 | bss->vma = vma; | |
e135f41b | 993 | else |
dda2980f | 994 | vma = bss->vma; |
e135f41b NC |
995 | |
996 | /* Fix up exec header. */ | |
dda2980f | 997 | execp->a_bss = bss->size; |
bbb1afc8 | 998 | N_SET_MAGIC (execp, NMAGIC); |
e135f41b NC |
999 | } |
1000 | ||
fa1477dc SC |
1001 | static void |
1002 | adjust_i_magic (bfd *abfd, struct internal_exec *execp) | |
1003 | { | |
1004 | file_ptr pos = adata (abfd).exec_bytes_size; | |
1005 | bfd_vma vma = 0; | |
1006 | int pad; | |
1007 | asection *text = obj_textsec (abfd); | |
1008 | asection *data = obj_datasec (abfd); | |
1009 | asection *bss = obj_bsssec (abfd); | |
1010 | ||
1011 | /* Text. */ | |
1012 | text->filepos = pos; | |
1013 | if (!text->user_set_vma) | |
1014 | text->vma = vma; | |
1015 | else | |
1016 | vma = text->vma; | |
1017 | pos += execp->a_text; | |
1018 | ||
1019 | /* Data. */ | |
1020 | data->filepos = pos; | |
1021 | if (!data->user_set_vma) | |
1022 | data->vma = 0; | |
1023 | vma = data->vma; | |
1024 | ||
1025 | /* Since BSS follows data immediately, see if it needs alignment. */ | |
1026 | vma += data->size; | |
1027 | pad = align_power (vma, bss->alignment_power) - vma; | |
1028 | execp->a_data = data->size + pad; | |
1029 | pos += execp->a_data; | |
1030 | ||
1031 | /* BSS. */ | |
1032 | if (!bss->user_set_vma) | |
1033 | bss->vma = vma; | |
1034 | else | |
1035 | vma = bss->vma; | |
1036 | ||
1037 | /* Fix up exec header. */ | |
1038 | execp->a_bss = bss->size; | |
1039 | N_SET_MAGIC (execp, IMAGIC); | |
1040 | } | |
1041 | ||
b34976b6 | 1042 | bfd_boolean |
3a8c4a5b | 1043 | NAME (aout, adjust_sizes_and_vmas) (bfd *abfd) |
e135f41b NC |
1044 | { |
1045 | struct internal_exec *execp = exec_hdr (abfd); | |
1046 | ||
116c20d2 | 1047 | if (! NAME (aout, make_sections) (abfd)) |
b34976b6 | 1048 | return FALSE; |
e135f41b | 1049 | |
dda2980f | 1050 | if (adata (abfd).magic != undecided_magic) |
b34976b6 | 1051 | return TRUE; |
e135f41b | 1052 | |
dda2980f AM |
1053 | execp->a_text = align_power (obj_textsec (abfd)->size, |
1054 | obj_textsec (abfd)->alignment_power); | |
e135f41b | 1055 | |
e135f41b NC |
1056 | /* Rule (heuristic) for when to pad to a new page. Note that there |
1057 | are (at least) two ways demand-paged (ZMAGIC) files have been | |
1058 | handled. Most Berkeley-based systems start the text segment at | |
1059 | (TARGET_PAGE_SIZE). However, newer versions of SUNOS start the text | |
1060 | segment right after the exec header; the latter is counted in the | |
1061 | text segment size, and is paged in by the kernel with the rest of | |
dda2980f | 1062 | the text. */ |
e135f41b NC |
1063 | |
1064 | /* This perhaps isn't the right way to do this, but made it simpler for me | |
1065 | to understand enough to implement it. Better would probably be to go | |
1066 | right from BFD flags to alignment/positioning characteristics. But the | |
1067 | old code was sloppy enough about handling the flags, and had enough | |
1068 | other magic, that it was a little hard for me to understand. I think | |
1069 | I understand it better now, but I haven't time to do the cleanup this | |
1070 | minute. */ | |
1071 | ||
fa1477dc SC |
1072 | if (separate_i_d) |
1073 | adata (abfd).magic = i_magic; | |
1074 | else if (abfd->flags & WP_TEXT) | |
dda2980f | 1075 | adata (abfd).magic = n_magic; |
e135f41b | 1076 | else |
dda2980f | 1077 | adata (abfd).magic = o_magic; |
e135f41b NC |
1078 | |
1079 | #ifdef BFD_AOUT_DEBUG /* requires gcc2 */ | |
1080 | #if __GNUC__ >= 2 | |
1081 | fprintf (stderr, "%s text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x,%x>\n", | |
1082 | ({ char *str; | |
dda2980f AM |
1083 | switch (adata (abfd).magic) |
1084 | { | |
1085 | case n_magic: str = "NMAGIC"; break; | |
1086 | case o_magic: str = "OMAGIC"; break; | |
fa1477dc | 1087 | case i_magic: str = "IMAGIC"; break; |
dda2980f AM |
1088 | case z_magic: str = "ZMAGIC"; break; |
1089 | default: abort (); | |
1090 | } | |
e135f41b NC |
1091 | str; |
1092 | }), | |
dda2980f AM |
1093 | obj_textsec (abfd)->vma, obj_textsec (abfd)->size, |
1094 | obj_textsec (abfd)->alignment_power, | |
1095 | obj_datasec (abfd)->vma, obj_datasec (abfd)->size, | |
1096 | obj_datasec (abfd)->alignment_power, | |
1097 | obj_bsssec (abfd)->vma, obj_bsssec (abfd)->size, | |
1098 | obj_bsssec (abfd)->alignment_power); | |
e135f41b NC |
1099 | #endif |
1100 | #endif | |
1101 | ||
dda2980f | 1102 | switch (adata (abfd).magic) |
e135f41b NC |
1103 | { |
1104 | case o_magic: | |
1105 | adjust_o_magic (abfd, execp); | |
1106 | break; | |
1107 | case z_magic: | |
1108 | adjust_z_magic (abfd, execp); | |
1109 | break; | |
1110 | case n_magic: | |
1111 | adjust_n_magic (abfd, execp); | |
1112 | break; | |
fa1477dc SC |
1113 | case i_magic: |
1114 | adjust_i_magic (abfd, execp); | |
1115 | break; | |
e135f41b NC |
1116 | default: |
1117 | abort (); | |
1118 | } | |
1119 | ||
1120 | #ifdef BFD_AOUT_DEBUG | |
1121 | fprintf (stderr, " text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x>\n", | |
dda2980f AM |
1122 | obj_textsec (abfd)->vma, execp->a_text, |
1123 | obj_textsec (abfd)->filepos, | |
1124 | obj_datasec (abfd)->vma, execp->a_data, | |
1125 | obj_datasec (abfd)->filepos, | |
1126 | obj_bsssec (abfd)->vma, execp->a_bss); | |
e135f41b NC |
1127 | #endif |
1128 | ||
b34976b6 | 1129 | return TRUE; |
e135f41b NC |
1130 | } |
1131 | ||
116c20d2 | 1132 | /* Called by the BFD in response to a bfd_make_section request. */ |
e135f41b | 1133 | |
b34976b6 | 1134 | bfd_boolean |
116c20d2 | 1135 | NAME (aout, new_section_hook) (bfd *abfd, asection *newsect) |
e135f41b | 1136 | { |
116c20d2 | 1137 | /* Align to double at least. */ |
e135f41b NC |
1138 | newsect->alignment_power = bfd_get_arch_info(abfd)->section_align_power; |
1139 | ||
e135f41b NC |
1140 | if (bfd_get_format (abfd) == bfd_object) |
1141 | { | |
1142 | if (obj_textsec (abfd) == NULL | |
f592407e | 1143 | && !strcmp (newsect->name, ".text")) |
e135f41b NC |
1144 | { |
1145 | obj_textsec(abfd)= newsect; | |
1146 | newsect->target_index = N_TEXT; | |
e135f41b | 1147 | } |
f592407e AM |
1148 | else if (obj_datasec (abfd) == NULL |
1149 | && !strcmp (newsect->name, ".data")) | |
1150 | { | |
1151 | obj_datasec (abfd) = newsect; | |
1152 | newsect->target_index = N_DATA; | |
1153 | } | |
1154 | else if (obj_bsssec (abfd) == NULL | |
1155 | && !strcmp (newsect->name, ".bss")) | |
1156 | { | |
1157 | obj_bsssec (abfd) = newsect; | |
1158 | newsect->target_index = N_BSS; | |
1159 | } | |
1160 | } | |
e135f41b | 1161 | |
116c20d2 | 1162 | /* We allow more than three sections internally. */ |
f592407e | 1163 | return _bfd_generic_new_section_hook (abfd, newsect); |
e135f41b NC |
1164 | } |
1165 | ||
b34976b6 | 1166 | bfd_boolean |
116c20d2 NC |
1167 | NAME (aout, set_section_contents) (bfd *abfd, |
1168 | sec_ptr section, | |
1169 | const void * location, | |
1170 | file_ptr offset, | |
1171 | bfd_size_type count) | |
e135f41b | 1172 | { |
e135f41b NC |
1173 | if (! abfd->output_has_begun) |
1174 | { | |
3a8c4a5b | 1175 | if (! NAME (aout, adjust_sizes_and_vmas) (abfd)) |
b34976b6 | 1176 | return FALSE; |
e135f41b NC |
1177 | } |
1178 | ||
1179 | if (section == obj_bsssec (abfd)) | |
1180 | { | |
1181 | bfd_set_error (bfd_error_no_contents); | |
b34976b6 | 1182 | return FALSE; |
e135f41b NC |
1183 | } |
1184 | ||
1185 | if (section != obj_textsec (abfd) | |
1186 | && section != obj_datasec (abfd)) | |
1187 | { | |
4eca0228 | 1188 | _bfd_error_handler |
695344c0 | 1189 | /* xgettext:c-format */ |
871b3ab2 | 1190 | (_("%pB: can not represent section `%pA' in a.out object file format"), |
dae82561 | 1191 | abfd, section); |
e135f41b | 1192 | bfd_set_error (bfd_error_nonrepresentable_section); |
b34976b6 | 1193 | return FALSE; |
e135f41b NC |
1194 | } |
1195 | ||
1196 | if (count != 0) | |
1197 | { | |
1198 | if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0 | |
dc810e39 | 1199 | || bfd_bwrite (location, count, abfd) != count) |
b34976b6 | 1200 | return FALSE; |
e135f41b NC |
1201 | } |
1202 | ||
b34976b6 | 1203 | return TRUE; |
e135f41b NC |
1204 | } |
1205 | \f | |
1206 | /* Read the external symbols from an a.out file. */ | |
1207 | ||
b34976b6 | 1208 | static bfd_boolean |
116c20d2 | 1209 | aout_get_external_symbols (bfd *abfd) |
e135f41b | 1210 | { |
116c20d2 | 1211 | if (obj_aout_external_syms (abfd) == NULL) |
e135f41b NC |
1212 | { |
1213 | bfd_size_type count; | |
1214 | struct external_nlist *syms; | |
1215 | ||
1216 | count = exec_hdr (abfd)->a_syms / EXTERNAL_NLIST_SIZE; | |
1217 | ||
37e3922e NC |
1218 | /* PR 17512: file: 011f5a08. */ |
1219 | if (count == 0) | |
49987e5c NC |
1220 | { |
1221 | obj_aout_external_syms (abfd) = NULL; | |
1222 | obj_aout_external_sym_count (abfd) = count; | |
1223 | return TRUE; | |
1224 | } | |
1225 | ||
e135f41b | 1226 | #ifdef USE_MMAP |
82e51918 AM |
1227 | if (! bfd_get_file_window (abfd, obj_sym_filepos (abfd), |
1228 | exec_hdr (abfd)->a_syms, | |
b34976b6 AM |
1229 | &obj_aout_sym_window (abfd), TRUE)) |
1230 | return FALSE; | |
e135f41b NC |
1231 | syms = (struct external_nlist *) obj_aout_sym_window (abfd).data; |
1232 | #else | |
1233 | /* We allocate using malloc to make the values easy to free | |
1234 | later on. If we put them on the objalloc it might not be | |
1235 | possible to free them. */ | |
2bb3687b AM |
1236 | if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0) |
1237 | return FALSE; | |
1238 | syms = (struct external_nlist *) | |
1239 | _bfd_malloc_and_read (abfd, count * EXTERNAL_NLIST_SIZE, | |
1240 | count * EXTERNAL_NLIST_SIZE); | |
116c20d2 | 1241 | if (syms == NULL && count != 0) |
b34976b6 | 1242 | return FALSE; |
e135f41b NC |
1243 | #endif |
1244 | ||
1245 | obj_aout_external_syms (abfd) = syms; | |
1246 | obj_aout_external_sym_count (abfd) = count; | |
1247 | } | |
dc810e39 | 1248 | |
e135f41b NC |
1249 | if (obj_aout_external_strings (abfd) == NULL |
1250 | && exec_hdr (abfd)->a_syms != 0) | |
1251 | { | |
1252 | unsigned char string_chars[BYTES_IN_LONG]; | |
1253 | bfd_size_type stringsize; | |
1254 | char *strings; | |
1255 | ||
1256 | /* Get the size of the strings. */ | |
1257 | if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0 | |
116c20d2 | 1258 | || (bfd_bread ((void *) string_chars, (bfd_size_type) BYTES_IN_LONG, |
dc810e39 | 1259 | abfd) != BYTES_IN_LONG)) |
b34976b6 | 1260 | return FALSE; |
dc810e39 | 1261 | stringsize = H_GET_32 (abfd, string_chars); |
e135f41b NC |
1262 | |
1263 | #ifdef USE_MMAP | |
82e51918 | 1264 | if (! bfd_get_file_window (abfd, obj_str_filepos (abfd), stringsize, |
b34976b6 AM |
1265 | &obj_aout_string_window (abfd), TRUE)) |
1266 | return FALSE; | |
e135f41b NC |
1267 | strings = (char *) obj_aout_string_window (abfd).data; |
1268 | #else | |
116c20d2 | 1269 | strings = bfd_malloc (stringsize + 1); |
e135f41b | 1270 | if (strings == NULL) |
b34976b6 | 1271 | return FALSE; |
e135f41b NC |
1272 | |
1273 | /* Skip space for the string count in the buffer for convenience | |
1274 | when using indexes. */ | |
dc810e39 | 1275 | if (bfd_bread (strings + 4, stringsize - 4, abfd) != stringsize - 4) |
e135f41b NC |
1276 | { |
1277 | free (strings); | |
b34976b6 | 1278 | return FALSE; |
e135f41b NC |
1279 | } |
1280 | #endif | |
e135f41b NC |
1281 | /* Ensure that a zero index yields an empty string. */ |
1282 | strings[0] = '\0'; | |
1283 | ||
1284 | strings[stringsize - 1] = 0; | |
1285 | ||
1286 | obj_aout_external_strings (abfd) = strings; | |
1287 | obj_aout_external_string_size (abfd) = stringsize; | |
1288 | } | |
1289 | ||
b34976b6 | 1290 | return TRUE; |
e135f41b NC |
1291 | } |
1292 | ||
1293 | /* Translate an a.out symbol into a BFD symbol. The desc, other, type | |
1294 | and symbol->value fields of CACHE_PTR will be set from the a.out | |
1295 | nlist structure. This function is responsible for setting | |
1296 | symbol->flags and symbol->section, and adjusting symbol->value. */ | |
1297 | ||
b34976b6 | 1298 | static bfd_boolean |
116c20d2 NC |
1299 | translate_from_native_sym_flags (bfd *abfd, |
1300 | aout_symbol_type *cache_ptr) | |
e135f41b NC |
1301 | { |
1302 | flagword visible; | |
1303 | ||
1304 | if (cache_ptr->type == N_FN) | |
1305 | { | |
1306 | asection *sec; | |
1307 | ||
1308 | /* This is a debugging symbol. */ | |
e135f41b NC |
1309 | cache_ptr->symbol.flags = BSF_DEBUGGING; |
1310 | ||
1311 | /* Work out the symbol section. */ | |
1312 | switch (cache_ptr->type & N_TYPE) | |
1313 | { | |
1314 | case N_TEXT: | |
1315 | case N_FN: | |
1316 | sec = obj_textsec (abfd); | |
1317 | break; | |
1318 | case N_DATA: | |
1319 | sec = obj_datasec (abfd); | |
1320 | break; | |
1321 | case N_BSS: | |
1322 | sec = obj_bsssec (abfd); | |
1323 | break; | |
1324 | default: | |
1325 | case N_ABS: | |
1326 | sec = bfd_abs_section_ptr; | |
1327 | break; | |
1328 | } | |
1329 | ||
1330 | cache_ptr->symbol.section = sec; | |
1331 | cache_ptr->symbol.value -= sec->vma; | |
1332 | ||
b34976b6 | 1333 | return TRUE; |
e135f41b NC |
1334 | } |
1335 | ||
1336 | /* Get the default visibility. This does not apply to all types, so | |
1337 | we just hold it in a local variable to use if wanted. */ | |
1338 | if ((cache_ptr->type & N_EXT) == 0) | |
1339 | visible = BSF_LOCAL; | |
1340 | else | |
1341 | visible = BSF_GLOBAL; | |
1342 | ||
1343 | switch (cache_ptr->type) | |
1344 | { | |
1345 | default: | |
1346 | case N_ABS: case N_ABS | N_EXT: | |
1347 | cache_ptr->symbol.section = bfd_abs_section_ptr; | |
1348 | cache_ptr->symbol.flags = visible; | |
1349 | break; | |
1350 | ||
1351 | case N_UNDF | N_EXT: | |
1352 | if (cache_ptr->symbol.value != 0) | |
1353 | { | |
1354 | /* This is a common symbol. */ | |
1355 | cache_ptr->symbol.flags = BSF_GLOBAL; | |
1356 | cache_ptr->symbol.section = bfd_com_section_ptr; | |
1357 | } | |
1358 | else | |
1359 | { | |
1360 | cache_ptr->symbol.flags = 0; | |
1361 | cache_ptr->symbol.section = bfd_und_section_ptr; | |
1362 | } | |
1363 | break; | |
1364 | ||
1365 | case N_TEXT: case N_TEXT | N_EXT: | |
1366 | cache_ptr->symbol.section = obj_textsec (abfd); | |
1367 | cache_ptr->symbol.value -= cache_ptr->symbol.section->vma; | |
1368 | cache_ptr->symbol.flags = visible; | |
1369 | break; | |
1370 | ||
1371 | case N_DATA: case N_DATA | N_EXT: | |
1372 | cache_ptr->symbol.section = obj_datasec (abfd); | |
1373 | cache_ptr->symbol.value -= cache_ptr->symbol.section->vma; | |
1374 | cache_ptr->symbol.flags = visible; | |
1375 | break; | |
1376 | ||
1377 | case N_BSS: case N_BSS | N_EXT: | |
1378 | cache_ptr->symbol.section = obj_bsssec (abfd); | |
1379 | cache_ptr->symbol.value -= cache_ptr->symbol.section->vma; | |
1380 | cache_ptr->symbol.flags = visible; | |
1381 | break; | |
1382 | } | |
1383 | ||
b34976b6 | 1384 | return TRUE; |
e135f41b NC |
1385 | } |
1386 | ||
1387 | /* Set the fields of SYM_POINTER according to CACHE_PTR. */ | |
1388 | ||
b34976b6 | 1389 | static bfd_boolean |
116c20d2 NC |
1390 | translate_to_native_sym_flags (bfd *abfd, |
1391 | asymbol *cache_ptr, | |
1392 | struct external_nlist *sym_pointer) | |
e135f41b NC |
1393 | { |
1394 | bfd_vma value = cache_ptr->value; | |
1395 | asection *sec; | |
1396 | bfd_vma off; | |
1397 | ||
1398 | /* Mask out any existing type bits in case copying from one section | |
1399 | to another. */ | |
1400 | sym_pointer->e_type[0] &= ~N_TYPE; | |
1401 | ||
e6f7f6d1 | 1402 | sec = bfd_asymbol_section (cache_ptr); |
e135f41b NC |
1403 | off = 0; |
1404 | ||
1405 | if (sec == NULL) | |
1406 | { | |
1407 | /* This case occurs, e.g., for the *DEBUG* section of a COFF | |
1408 | file. */ | |
4eca0228 | 1409 | _bfd_error_handler |
695344c0 | 1410 | /* xgettext:c-format */ |
871b3ab2 | 1411 | (_("%pB: can not represent section for symbol `%s' in a.out object file format"), |
d003868e | 1412 | abfd, cache_ptr->name != NULL ? cache_ptr->name : "*unknown*"); |
e135f41b | 1413 | bfd_set_error (bfd_error_nonrepresentable_section); |
b34976b6 | 1414 | return FALSE; |
e135f41b NC |
1415 | } |
1416 | ||
1417 | if (sec->output_section != NULL) | |
1418 | { | |
1419 | off = sec->output_offset; | |
1420 | sec = sec->output_section; | |
1421 | } | |
1422 | ||
1423 | if (bfd_is_abs_section (sec)) | |
1424 | sym_pointer->e_type[0] |= N_ABS; | |
1425 | else if (sec == obj_textsec (abfd)) | |
1426 | sym_pointer->e_type[0] |= N_TEXT; | |
1427 | else if (sec == obj_datasec (abfd)) | |
1428 | sym_pointer->e_type[0] |= N_DATA; | |
1429 | else if (sec == obj_bsssec (abfd)) | |
1430 | sym_pointer->e_type[0] |= N_BSS; | |
1431 | else if (bfd_is_und_section (sec)) | |
1432 | sym_pointer->e_type[0] = N_UNDF | N_EXT; | |
1433 | else if (bfd_is_com_section (sec)) | |
1434 | sym_pointer->e_type[0] = N_UNDF | N_EXT; | |
1435 | else | |
1436 | { | |
4eca0228 | 1437 | _bfd_error_handler |
695344c0 | 1438 | /* xgettext:c-format */ |
871b3ab2 | 1439 | (_("%pB: can not represent section `%pA' in a.out object file format"), |
d003868e | 1440 | abfd, sec); |
e135f41b | 1441 | bfd_set_error (bfd_error_nonrepresentable_section); |
b34976b6 | 1442 | return FALSE; |
e135f41b NC |
1443 | } |
1444 | ||
1445 | /* Turn the symbol from section relative to absolute again */ | |
1446 | value += sec->vma + off; | |
1447 | ||
1448 | if ((cache_ptr->flags & BSF_DEBUGGING) != 0) | |
1449 | sym_pointer->e_type[0] = ((aout_symbol_type *) cache_ptr)->type; | |
1450 | else if ((cache_ptr->flags & BSF_GLOBAL) != 0) | |
1451 | sym_pointer->e_type[0] |= N_EXT; | |
1452 | ||
e135f41b NC |
1453 | PUT_WORD(abfd, value, sym_pointer->e_value); |
1454 | ||
b34976b6 | 1455 | return TRUE; |
e135f41b NC |
1456 | } |
1457 | \f | |
1458 | /* Native-level interface to symbols. */ | |
1459 | ||
1460 | asymbol * | |
116c20d2 | 1461 | NAME (aout, make_empty_symbol) (bfd *abfd) |
e135f41b | 1462 | { |
986f0783 | 1463 | size_t amt = sizeof (aout_symbol_type); |
d3ce72d0 | 1464 | aout_symbol_type *new_symbol_type = bfd_zalloc (abfd, amt); |
116c20d2 | 1465 | |
d3ce72d0 | 1466 | if (!new_symbol_type) |
e135f41b | 1467 | return NULL; |
d3ce72d0 | 1468 | new_symbol_type->symbol.the_bfd = abfd; |
e135f41b | 1469 | |
d3ce72d0 | 1470 | return &new_symbol_type->symbol; |
e135f41b NC |
1471 | } |
1472 | ||
1473 | /* Translate a set of internal symbols into external symbols. */ | |
1474 | ||
b34976b6 | 1475 | bfd_boolean |
116c20d2 NC |
1476 | NAME (aout, translate_symbol_table) (bfd *abfd, |
1477 | aout_symbol_type *in, | |
1478 | struct external_nlist *ext, | |
1479 | bfd_size_type count, | |
1480 | char *str, | |
1481 | bfd_size_type strsize, | |
1482 | bfd_boolean dynamic) | |
e135f41b NC |
1483 | { |
1484 | struct external_nlist *ext_end; | |
1485 | ||
1486 | ext_end = ext + count; | |
1487 | for (; ext < ext_end; ext++, in++) | |
1488 | { | |
1489 | bfd_vma x; | |
1490 | ||
1491 | x = GET_WORD (abfd, ext->e_strx); | |
1492 | in->symbol.the_bfd = abfd; | |
1493 | ||
1494 | /* For the normal symbols, the zero index points at the number | |
1495 | of bytes in the string table but is to be interpreted as the | |
1496 | null string. For the dynamic symbols, the number of bytes in | |
1497 | the string table is stored in the __DYNAMIC structure and the | |
1498 | zero index points at an actual string. */ | |
1499 | if (x == 0 && ! dynamic) | |
1500 | in->symbol.name = ""; | |
1501 | else if (x < strsize) | |
1502 | in->symbol.name = str + x; | |
1503 | else | |
b34976b6 | 1504 | return FALSE; |
e135f41b | 1505 | |
23c8270e | 1506 | in->symbol.value = GET_WORD (abfd, ext->e_value); |
116c20d2 | 1507 | /* TODO: is 0 a safe value here? */ |
e135f41b NC |
1508 | in->desc = 0; |
1509 | in->other = 0; | |
dc810e39 | 1510 | in->type = H_GET_8 (abfd, ext->e_type); |
e135f41b NC |
1511 | in->symbol.udata.p = NULL; |
1512 | ||
1513 | if (! translate_from_native_sym_flags (abfd, in)) | |
b34976b6 | 1514 | return FALSE; |
e135f41b NC |
1515 | |
1516 | if (dynamic) | |
1517 | in->symbol.flags |= BSF_DYNAMIC; | |
1518 | } | |
1519 | ||
b34976b6 | 1520 | return TRUE; |
e135f41b NC |
1521 | } |
1522 | ||
1523 | /* We read the symbols into a buffer, which is discarded when this | |
1524 | function exits. We read the strings into a buffer large enough to | |
116c20d2 | 1525 | hold them all plus all the cached symbol entries. */ |
e135f41b | 1526 | |
b34976b6 | 1527 | bfd_boolean |
116c20d2 | 1528 | NAME (aout, slurp_symbol_table) (bfd *abfd) |
e135f41b NC |
1529 | { |
1530 | struct external_nlist *old_external_syms; | |
1531 | aout_symbol_type *cached; | |
dc810e39 | 1532 | bfd_size_type cached_size; |
e135f41b | 1533 | |
116c20d2 NC |
1534 | /* If there's no work to be done, don't do any. */ |
1535 | if (obj_aout_symbols (abfd) != NULL) | |
b34976b6 | 1536 | return TRUE; |
e135f41b NC |
1537 | |
1538 | old_external_syms = obj_aout_external_syms (abfd); | |
1539 | ||
1540 | if (! aout_get_external_symbols (abfd)) | |
b34976b6 | 1541 | return FALSE; |
e135f41b | 1542 | |
dc810e39 AM |
1543 | cached_size = obj_aout_external_sym_count (abfd); |
1544 | cached_size *= sizeof (aout_symbol_type); | |
116c20d2 | 1545 | cached = bfd_zmalloc (cached_size); |
e135f41b | 1546 | if (cached == NULL && cached_size != 0) |
b34976b6 | 1547 | return FALSE; |
e135f41b NC |
1548 | |
1549 | /* Convert from external symbol information to internal. */ | |
116c20d2 | 1550 | if (! (NAME (aout, translate_symbol_table) |
e135f41b NC |
1551 | (abfd, cached, |
1552 | obj_aout_external_syms (abfd), | |
1553 | obj_aout_external_sym_count (abfd), | |
1554 | obj_aout_external_strings (abfd), | |
1555 | obj_aout_external_string_size (abfd), | |
b34976b6 | 1556 | FALSE))) |
e135f41b NC |
1557 | { |
1558 | free (cached); | |
b34976b6 | 1559 | return FALSE; |
e135f41b NC |
1560 | } |
1561 | ||
ed48ec2e | 1562 | abfd->symcount = obj_aout_external_sym_count (abfd); |
e135f41b NC |
1563 | |
1564 | obj_aout_symbols (abfd) = cached; | |
1565 | ||
1566 | /* It is very likely that anybody who calls this function will not | |
1567 | want the external symbol information, so if it was allocated | |
1568 | because of our call to aout_get_external_symbols, we free it up | |
1569 | right away to save space. */ | |
116c20d2 NC |
1570 | if (old_external_syms == NULL |
1571 | && obj_aout_external_syms (abfd) != NULL) | |
e135f41b NC |
1572 | { |
1573 | #ifdef USE_MMAP | |
1574 | bfd_free_window (&obj_aout_sym_window (abfd)); | |
1575 | #else | |
1576 | free (obj_aout_external_syms (abfd)); | |
1577 | #endif | |
1578 | obj_aout_external_syms (abfd) = NULL; | |
1579 | } | |
1580 | ||
b34976b6 | 1581 | return TRUE; |
e135f41b NC |
1582 | } |
1583 | \f | |
1584 | /* We use a hash table when writing out symbols so that we only write | |
1585 | out a particular string once. This helps particularly when the | |
1586 | linker writes out stabs debugging entries, because each different | |
1587 | contributing object file tends to have many duplicate stabs | |
1588 | strings. | |
1589 | ||
1590 | This hash table code breaks dbx on SunOS 4.1.3, so we don't do it | |
1591 | if BFD_TRADITIONAL_FORMAT is set. */ | |
1592 | ||
e135f41b NC |
1593 | /* Get the index of a string in a strtab, adding it if it is not |
1594 | already present. */ | |
1595 | ||
1596 | static INLINE bfd_size_type | |
116c20d2 NC |
1597 | add_to_stringtab (bfd *abfd, |
1598 | struct bfd_strtab_hash *tab, | |
1599 | const char *str, | |
1600 | bfd_boolean copy) | |
e135f41b | 1601 | { |
b34976b6 | 1602 | bfd_boolean hash; |
91d6fa6a | 1603 | bfd_size_type str_index; |
e135f41b NC |
1604 | |
1605 | /* An index of 0 always means the empty string. */ | |
1606 | if (str == 0 || *str == '\0') | |
1607 | return 0; | |
1608 | ||
1609 | /* Don't hash if BFD_TRADITIONAL_FORMAT is set, because SunOS dbx | |
1610 | doesn't understand a hashed string table. */ | |
b34976b6 | 1611 | hash = TRUE; |
e135f41b | 1612 | if ((abfd->flags & BFD_TRADITIONAL_FORMAT) != 0) |
b34976b6 | 1613 | hash = FALSE; |
e135f41b | 1614 | |
91d6fa6a | 1615 | str_index = _bfd_stringtab_add (tab, str, hash, copy); |
e135f41b | 1616 | |
91d6fa6a | 1617 | if (str_index != (bfd_size_type) -1) |
116c20d2 NC |
1618 | /* Add BYTES_IN_LONG to the return value to account for the |
1619 | space taken up by the string table size. */ | |
91d6fa6a | 1620 | str_index += BYTES_IN_LONG; |
e135f41b | 1621 | |
91d6fa6a | 1622 | return str_index; |
e135f41b NC |
1623 | } |
1624 | ||
1625 | /* Write out a strtab. ABFD is already at the right location in the | |
1626 | file. */ | |
1627 | ||
b34976b6 | 1628 | static bfd_boolean |
116c20d2 | 1629 | emit_stringtab (bfd *abfd, struct bfd_strtab_hash *tab) |
e135f41b NC |
1630 | { |
1631 | bfd_byte buffer[BYTES_IN_LONG]; | |
1632 | ||
1633 | /* The string table starts with the size. */ | |
dc810e39 | 1634 | H_PUT_32 (abfd, _bfd_stringtab_size (tab) + BYTES_IN_LONG, buffer); |
116c20d2 | 1635 | if (bfd_bwrite ((void *) buffer, (bfd_size_type) BYTES_IN_LONG, abfd) |
dc810e39 | 1636 | != BYTES_IN_LONG) |
b34976b6 | 1637 | return FALSE; |
e135f41b NC |
1638 | |
1639 | return _bfd_stringtab_emit (abfd, tab); | |
1640 | } | |
1641 | \f | |
b34976b6 | 1642 | bfd_boolean |
116c20d2 | 1643 | NAME (aout, write_syms) (bfd *abfd) |
e135f41b NC |
1644 | { |
1645 | unsigned int count ; | |
1646 | asymbol **generic = bfd_get_outsymbols (abfd); | |
1647 | struct bfd_strtab_hash *strtab; | |
1648 | ||
1649 | strtab = _bfd_stringtab_init (); | |
1650 | if (strtab == NULL) | |
b34976b6 | 1651 | return FALSE; |
e135f41b NC |
1652 | |
1653 | for (count = 0; count < bfd_get_symcount (abfd); count++) | |
1654 | { | |
1655 | asymbol *g = generic[count]; | |
1656 | bfd_size_type indx; | |
1657 | struct external_nlist nsp; | |
1658 | ||
dc810e39 | 1659 | PUT_WORD (abfd, 0, nsp.e_unused); |
e135f41b | 1660 | |
b34976b6 | 1661 | indx = add_to_stringtab (abfd, strtab, g->name, FALSE); |
e135f41b NC |
1662 | if (indx == (bfd_size_type) -1) |
1663 | goto error_return; | |
dc810e39 | 1664 | PUT_WORD (abfd, indx, nsp.e_strx); |
e135f41b NC |
1665 | |
1666 | if (bfd_asymbol_flavour(g) == abfd->xvec->flavour) | |
dc810e39 | 1667 | H_PUT_8 (abfd, aout_symbol(g)->type, nsp.e_type); |
e135f41b | 1668 | else |
dc810e39 | 1669 | H_PUT_8 (abfd, 0, nsp.e_type); |
e135f41b NC |
1670 | |
1671 | if (! translate_to_native_sym_flags (abfd, g, &nsp)) | |
1672 | goto error_return; | |
1673 | ||
dc810e39 | 1674 | H_PUT_8 (abfd, 0, nsp.e_ovly); |
e135f41b | 1675 | |
116c20d2 | 1676 | if (bfd_bwrite ((void *)&nsp, (bfd_size_type) EXTERNAL_NLIST_SIZE, abfd) |
e135f41b NC |
1677 | != EXTERNAL_NLIST_SIZE) |
1678 | goto error_return; | |
1679 | ||
1680 | /* NB: `KEEPIT' currently overlays `udata.p', so set this only | |
1681 | here, at the end. */ | |
1682 | g->KEEPIT = count; | |
1683 | } | |
1684 | ||
1685 | if (! emit_stringtab (abfd, strtab)) | |
1686 | goto error_return; | |
1687 | ||
1688 | _bfd_stringtab_free (strtab); | |
1689 | ||
b34976b6 | 1690 | return TRUE; |
e135f41b | 1691 | |
dc1e8a47 | 1692 | error_return: |
e135f41b | 1693 | _bfd_stringtab_free (strtab); |
b34976b6 | 1694 | return FALSE; |
e135f41b NC |
1695 | } |
1696 | ||
1697 | \f | |
1698 | long | |
116c20d2 | 1699 | NAME (aout, canonicalize_symtab) (bfd *abfd, asymbol **location) |
e135f41b | 1700 | { |
116c20d2 NC |
1701 | unsigned int counter = 0; |
1702 | aout_symbol_type *symbase; | |
e135f41b | 1703 | |
116c20d2 NC |
1704 | if (!NAME (aout, slurp_symbol_table) (abfd)) |
1705 | return -1; | |
e135f41b | 1706 | |
116c20d2 NC |
1707 | for (symbase = obj_aout_symbols (abfd); counter++ < bfd_get_symcount (abfd);) |
1708 | *(location++) = (asymbol *)(symbase++); | |
1709 | *location++ =0; | |
1710 | return bfd_get_symcount (abfd); | |
e135f41b NC |
1711 | } |
1712 | ||
1713 | \f | |
116c20d2 | 1714 | /* Output extended relocation information to a file in target byte order. */ |
e135f41b | 1715 | |
116c20d2 NC |
1716 | static void |
1717 | pdp11_aout_swap_reloc_out (bfd *abfd, arelent *g, bfd_byte *natptr) | |
e135f41b NC |
1718 | { |
1719 | int r_index; | |
1720 | int r_pcrel; | |
1721 | int reloc_entry; | |
1722 | int r_type; | |
1723 | asymbol *sym = *(g->sym_ptr_ptr); | |
1724 | asection *output_section = sym->section->output_section; | |
1725 | ||
1726 | if (g->addend != 0) | |
1727 | fprintf (stderr, "BFD: can't do this reloc addend stuff\n"); | |
1728 | ||
1729 | r_pcrel = g->howto->pc_relative; | |
1730 | ||
1731 | if (bfd_is_abs_section (output_section)) | |
1732 | r_type = RABS; | |
1733 | else if (output_section == obj_textsec (abfd)) | |
1734 | r_type = RTEXT; | |
1735 | else if (output_section == obj_datasec (abfd)) | |
1736 | r_type = RDATA; | |
1737 | else if (output_section == obj_bsssec (abfd)) | |
1738 | r_type = RBSS; | |
1739 | else if (bfd_is_und_section (output_section)) | |
1740 | r_type = REXT; | |
1741 | else if (bfd_is_com_section (output_section)) | |
1742 | r_type = REXT; | |
1743 | else | |
1744 | r_type = -1; | |
1745 | ||
1746 | BFD_ASSERT (r_type != -1); | |
1747 | ||
1748 | if (r_type == RABS) | |
1749 | r_index = 0; | |
1750 | else | |
1751 | r_index = (*(g->sym_ptr_ptr))->KEEPIT; | |
1752 | ||
e135f41b NC |
1753 | reloc_entry = r_index << 4 | r_type | r_pcrel; |
1754 | ||
9dadfa79 | 1755 | PUT_WORD (abfd, reloc_entry, natptr); |
e135f41b NC |
1756 | } |
1757 | ||
1758 | /* BFD deals internally with all things based from the section they're | |
1759 | in. so, something in 10 bytes into a text section with a base of | |
1760 | 50 would have a symbol (.text+10) and know .text vma was 50. | |
1761 | ||
1762 | Aout keeps all it's symbols based from zero, so the symbol would | |
1763 | contain 60. This macro subs the base of each section from the value | |
1764 | to give the true offset from the section */ | |
1765 | ||
1766 | ||
07d6d2b8 AM |
1767 | #define MOVE_ADDRESS(ad) \ |
1768 | if (r_extern) \ | |
e135f41b NC |
1769 | { \ |
1770 | /* Undefined symbol. */ \ | |
1771 | cache_ptr->sym_ptr_ptr = symbols + r_index; \ | |
1772 | cache_ptr->addend = ad; \ | |
1773 | } \ | |
1774 | else \ | |
1775 | { \ | |
07d6d2b8 | 1776 | /* Defined, section relative. replace symbol with pointer to \ |
e135f41b NC |
1777 | symbol which points to section. */ \ |
1778 | switch (r_index) \ | |
1779 | { \ | |
1780 | case N_TEXT: \ | |
1781 | case N_TEXT | N_EXT: \ | |
1782 | cache_ptr->sym_ptr_ptr = obj_textsec (abfd)->symbol_ptr_ptr; \ | |
1783 | cache_ptr->addend = ad - su->textsec->vma; \ | |
1784 | break; \ | |
1785 | case N_DATA: \ | |
1786 | case N_DATA | N_EXT: \ | |
1787 | cache_ptr->sym_ptr_ptr = obj_datasec (abfd)->symbol_ptr_ptr; \ | |
1788 | cache_ptr->addend = ad - su->datasec->vma; \ | |
1789 | break; \ | |
1790 | case N_BSS: \ | |
1791 | case N_BSS | N_EXT: \ | |
1792 | cache_ptr->sym_ptr_ptr = obj_bsssec (abfd)->symbol_ptr_ptr; \ | |
1793 | cache_ptr->addend = ad - su->bsssec->vma; \ | |
1794 | break; \ | |
1795 | default: \ | |
1796 | case N_ABS: \ | |
1797 | case N_ABS | N_EXT: \ | |
1798 | cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; \ | |
1799 | cache_ptr->addend = ad; \ | |
1800 | break; \ | |
1801 | } \ | |
dc810e39 | 1802 | } |
e135f41b | 1803 | |
116c20d2 | 1804 | static void |
07d6d2b8 AM |
1805 | pdp11_aout_swap_reloc_in (bfd * abfd, |
1806 | bfd_byte * bytes, | |
1807 | arelent * cache_ptr, | |
1808 | bfd_size_type offset, | |
1809 | asymbol ** symbols, | |
1810 | bfd_size_type symcount) | |
e135f41b NC |
1811 | { |
1812 | struct aoutdata *su = &(abfd->tdata.aout_data->a); | |
1813 | unsigned int r_index; | |
1814 | int reloc_entry; | |
1815 | int r_extern; | |
1816 | int r_pcrel; | |
1817 | ||
116c20d2 | 1818 | reloc_entry = GET_WORD (abfd, (void *) bytes); |
e135f41b NC |
1819 | |
1820 | r_pcrel = reloc_entry & RELFLG; | |
1821 | ||
1822 | cache_ptr->address = offset; | |
1823 | cache_ptr->howto = howto_table_pdp11 + (r_pcrel ? 1 : 0); | |
1824 | ||
1825 | if ((reloc_entry & RTYPE) == RABS) | |
1826 | r_index = N_ABS; | |
1827 | else | |
1828 | r_index = RINDEX (reloc_entry); | |
1829 | ||
1830 | /* r_extern reflects whether the symbol the reloc is against is | |
1831 | local or global. */ | |
1832 | r_extern = (reloc_entry & RTYPE) == REXT; | |
1833 | ||
1834 | if (r_extern && r_index > symcount) | |
1835 | { | |
1836 | /* We could arrange to return an error, but it might be useful | |
07d6d2b8 | 1837 | to see the file even if it is bad. */ |
e135f41b NC |
1838 | r_extern = 0; |
1839 | r_index = N_ABS; | |
1840 | } | |
1841 | ||
1842 | MOVE_ADDRESS(0); | |
1843 | } | |
1844 | ||
1845 | /* Read and swap the relocs for a section. */ | |
1846 | ||
b34976b6 | 1847 | bfd_boolean |
116c20d2 | 1848 | NAME (aout, slurp_reloc_table) (bfd *abfd, sec_ptr asect, asymbol **symbols) |
e135f41b | 1849 | { |
9dadfa79 | 1850 | bfd_byte *rptr; |
dc810e39 | 1851 | bfd_size_type count; |
e135f41b | 1852 | bfd_size_type reloc_size; |
116c20d2 | 1853 | void * relocs; |
e135f41b NC |
1854 | arelent *reloc_cache; |
1855 | size_t each_size; | |
1856 | unsigned int counter = 0; | |
1857 | arelent *cache_ptr; | |
1858 | ||
1859 | if (asect->relocation) | |
b34976b6 | 1860 | return TRUE; |
e135f41b NC |
1861 | |
1862 | if (asect->flags & SEC_CONSTRUCTOR) | |
b34976b6 | 1863 | return TRUE; |
e135f41b NC |
1864 | |
1865 | if (asect == obj_datasec (abfd)) | |
1866 | reloc_size = exec_hdr(abfd)->a_drsize; | |
1867 | else if (asect == obj_textsec (abfd)) | |
1868 | reloc_size = exec_hdr(abfd)->a_trsize; | |
1869 | else if (asect == obj_bsssec (abfd)) | |
1870 | reloc_size = 0; | |
1871 | else | |
1872 | { | |
1873 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 1874 | return FALSE; |
e135f41b NC |
1875 | } |
1876 | ||
1877 | if (bfd_seek (abfd, asect->rel_filepos, SEEK_SET) != 0) | |
b34976b6 | 1878 | return FALSE; |
2bb3687b | 1879 | relocs = _bfd_malloc_and_read (abfd, reloc_size, reloc_size); |
e135f41b | 1880 | if (relocs == NULL && reloc_size != 0) |
b34976b6 | 1881 | return FALSE; |
e135f41b | 1882 | |
2bb3687b | 1883 | each_size = obj_reloc_entry_size (abfd); |
e135f41b NC |
1884 | count = reloc_size / each_size; |
1885 | ||
116c20d2 | 1886 | /* Count the number of NON-ZERO relocs, this is the count we want. */ |
e135f41b NC |
1887 | { |
1888 | unsigned int real_count = 0; | |
1889 | ||
1890 | for (counter = 0; counter < count; counter++) | |
1891 | { | |
1892 | int x; | |
1893 | ||
973ffd63 | 1894 | x = GET_WORD (abfd, (char *) relocs + each_size * counter); |
e135f41b NC |
1895 | if (x != 0) |
1896 | real_count++; | |
1897 | } | |
1898 | ||
1899 | count = real_count; | |
1900 | } | |
1901 | ||
116c20d2 | 1902 | reloc_cache = bfd_zmalloc (count * sizeof (arelent)); |
e135f41b | 1903 | if (reloc_cache == NULL && count != 0) |
b34976b6 | 1904 | return FALSE; |
e135f41b NC |
1905 | |
1906 | cache_ptr = reloc_cache; | |
1907 | ||
9dadfa79 | 1908 | rptr = relocs; |
e135f41b NC |
1909 | for (counter = 0; |
1910 | counter < count; | |
9dadfa79 | 1911 | counter++, rptr += RELOC_SIZE, cache_ptr++) |
e135f41b | 1912 | { |
116c20d2 | 1913 | while (GET_WORD (abfd, (void *) rptr) == 0) |
e135f41b | 1914 | { |
9dadfa79 | 1915 | rptr += RELOC_SIZE; |
dc810e39 | 1916 | if ((char *) rptr >= (char *) relocs + reloc_size) |
e135f41b NC |
1917 | goto done; |
1918 | } | |
1919 | ||
1920 | pdp11_aout_swap_reloc_in (abfd, rptr, cache_ptr, | |
dc810e39 AM |
1921 | (bfd_size_type) ((char *) rptr - (char *) relocs), |
1922 | symbols, | |
1923 | (bfd_size_type) bfd_get_symcount (abfd)); | |
e135f41b NC |
1924 | } |
1925 | done: | |
1926 | /* Just in case, if rptr >= relocs + reloc_size should happen | |
116c20d2 | 1927 | too early. */ |
e135f41b NC |
1928 | BFD_ASSERT (counter == count); |
1929 | ||
1930 | free (relocs); | |
1931 | ||
1932 | asect->relocation = reloc_cache; | |
1933 | asect->reloc_count = cache_ptr - reloc_cache; | |
1934 | ||
b34976b6 | 1935 | return TRUE; |
e135f41b NC |
1936 | } |
1937 | ||
1938 | /* Write out a relocation section into an object file. */ | |
1939 | ||
b34976b6 | 1940 | bfd_boolean |
116c20d2 | 1941 | NAME (aout, squirt_out_relocs) (bfd *abfd, asection *section) |
e135f41b NC |
1942 | { |
1943 | arelent **generic; | |
1944 | unsigned char *native; | |
1945 | unsigned int count = section->reloc_count; | |
dc810e39 | 1946 | bfd_size_type natsize; |
e135f41b | 1947 | |
eea6121a | 1948 | natsize = section->size; |
116c20d2 | 1949 | native = bfd_zalloc (abfd, natsize); |
e135f41b | 1950 | if (!native) |
b34976b6 | 1951 | return FALSE; |
e135f41b | 1952 | |
e135f41b NC |
1953 | generic = section->orelocation; |
1954 | if (generic != NULL) | |
1955 | { | |
1956 | while (count > 0) | |
1957 | { | |
9dadfa79 | 1958 | bfd_byte *r; |
e135f41b | 1959 | |
9dadfa79 | 1960 | r = native + (*generic)->address; |
e135f41b NC |
1961 | pdp11_aout_swap_reloc_out (abfd, *generic, r); |
1962 | count--; | |
1963 | generic++; | |
1964 | } | |
1965 | } | |
1966 | ||
116c20d2 | 1967 | if (bfd_bwrite ((void *) native, natsize, abfd) != natsize) |
e135f41b | 1968 | { |
dc810e39 | 1969 | bfd_release (abfd, native); |
b34976b6 | 1970 | return FALSE; |
e135f41b NC |
1971 | } |
1972 | ||
1973 | bfd_release (abfd, native); | |
b34976b6 | 1974 | return TRUE; |
e135f41b NC |
1975 | } |
1976 | ||
116c20d2 NC |
1977 | /* This is stupid. This function should be a boolean predicate. */ |
1978 | ||
e135f41b | 1979 | long |
116c20d2 NC |
1980 | NAME (aout, canonicalize_reloc) (bfd *abfd, |
1981 | sec_ptr section, | |
1982 | arelent **relptr, | |
1983 | asymbol **symbols) | |
e135f41b NC |
1984 | { |
1985 | arelent *tblptr = section->relocation; | |
1986 | unsigned int count; | |
1987 | ||
1988 | if (section == obj_bsssec (abfd)) | |
1989 | { | |
1990 | *relptr = NULL; | |
1991 | return 0; | |
1992 | } | |
1993 | ||
116c20d2 | 1994 | if (!(tblptr || NAME (aout, slurp_reloc_table)(abfd, section, symbols))) |
e135f41b NC |
1995 | return -1; |
1996 | ||
1997 | if (section->flags & SEC_CONSTRUCTOR) | |
1998 | { | |
1999 | arelent_chain *chain = section->constructor_chain; | |
2000 | ||
2001 | for (count = 0; count < section->reloc_count; count ++) | |
2002 | { | |
2003 | *relptr ++ = &chain->relent; | |
2004 | chain = chain->next; | |
2005 | } | |
2006 | } | |
2007 | else | |
2008 | { | |
2009 | tblptr = section->relocation; | |
2010 | ||
2011 | for (count = 0; count++ < section->reloc_count;) | |
2012 | *relptr++ = tblptr++; | |
2013 | } | |
2014 | ||
2015 | *relptr = 0; | |
2016 | ||
2017 | return section->reloc_count; | |
2018 | } | |
2019 | ||
2020 | long | |
116c20d2 | 2021 | NAME (aout, get_reloc_upper_bound) (bfd *abfd, sec_ptr asect) |
e135f41b | 2022 | { |
7a6e0d89 AM |
2023 | bfd_size_type count; |
2024 | ||
e135f41b NC |
2025 | if (bfd_get_format (abfd) != bfd_object) |
2026 | { | |
2027 | bfd_set_error (bfd_error_invalid_operation); | |
2028 | return -1; | |
2029 | } | |
2030 | ||
dc810e39 | 2031 | if (asect->flags & SEC_CONSTRUCTOR) |
7a6e0d89 AM |
2032 | count = asect->reloc_count; |
2033 | else if (asect == obj_datasec (abfd)) | |
2034 | count = exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd); | |
2035 | else if (asect == obj_textsec (abfd)) | |
2036 | count = exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd); | |
2037 | else if (asect == obj_bsssec (abfd)) | |
2038 | count = 0; | |
2039 | else | |
2040 | { | |
2041 | bfd_set_error (bfd_error_invalid_operation); | |
2042 | return -1; | |
2043 | } | |
e135f41b | 2044 | |
7a6e0d89 AM |
2045 | if (count >= LONG_MAX / sizeof (arelent *)) |
2046 | { | |
2047 | bfd_set_error (bfd_error_file_too_big); | |
2048 | return -1; | |
2049 | } | |
2050 | return (count + 1) * sizeof (arelent *); | |
e135f41b NC |
2051 | } |
2052 | ||
2053 | \f | |
2054 | long | |
116c20d2 | 2055 | NAME (aout, get_symtab_upper_bound) (bfd *abfd) |
e135f41b | 2056 | { |
116c20d2 | 2057 | if (!NAME (aout, slurp_symbol_table) (abfd)) |
e135f41b NC |
2058 | return -1; |
2059 | ||
2060 | return (bfd_get_symcount (abfd) + 1) * (sizeof (aout_symbol_type *)); | |
2061 | } | |
2062 | ||
2063 | alent * | |
116c20d2 NC |
2064 | NAME (aout, get_lineno) (bfd * abfd ATTRIBUTE_UNUSED, |
2065 | asymbol * symbol ATTRIBUTE_UNUSED) | |
e135f41b | 2066 | { |
116c20d2 | 2067 | return NULL; |
e135f41b NC |
2068 | } |
2069 | ||
2070 | void | |
116c20d2 NC |
2071 | NAME (aout, get_symbol_info) (bfd * abfd ATTRIBUTE_UNUSED, |
2072 | asymbol *symbol, | |
2073 | symbol_info *ret) | |
e135f41b NC |
2074 | { |
2075 | bfd_symbol_info (symbol, ret); | |
2076 | ||
2077 | if (ret->type == '?') | |
2078 | { | |
2079 | int type_code = aout_symbol(symbol)->type & 0xff; | |
2080 | const char *stab_name = bfd_get_stab_name (type_code); | |
2081 | static char buf[10]; | |
2082 | ||
2083 | if (stab_name == NULL) | |
2084 | { | |
2085 | sprintf(buf, "(%d)", type_code); | |
2086 | stab_name = buf; | |
2087 | } | |
2088 | ret->type = '-'; | |
116c20d2 NC |
2089 | ret->stab_type = type_code; |
2090 | ret->stab_other = (unsigned) (aout_symbol(symbol)->other & 0xff); | |
2091 | ret->stab_desc = (unsigned) (aout_symbol(symbol)->desc & 0xffff); | |
2092 | ret->stab_name = stab_name; | |
e135f41b NC |
2093 | } |
2094 | } | |
2095 | ||
e135f41b | 2096 | void |
116c20d2 NC |
2097 | NAME (aout, print_symbol) (bfd * abfd, |
2098 | void * afile, | |
2099 | asymbol *symbol, | |
2100 | bfd_print_symbol_type how) | |
e135f41b | 2101 | { |
116c20d2 | 2102 | FILE *file = (FILE *) afile; |
e135f41b NC |
2103 | |
2104 | switch (how) | |
2105 | { | |
2106 | case bfd_print_symbol_name: | |
2107 | if (symbol->name) | |
2108 | fprintf(file,"%s", symbol->name); | |
2109 | break; | |
2110 | case bfd_print_symbol_more: | |
116c20d2 NC |
2111 | fprintf(file,"%4x %2x %2x", |
2112 | (unsigned) (aout_symbol (symbol)->desc & 0xffff), | |
2113 | (unsigned) (aout_symbol (symbol)->other & 0xff), | |
2114 | (unsigned) (aout_symbol (symbol)->type)); | |
e135f41b NC |
2115 | break; |
2116 | case bfd_print_symbol_all: | |
2117 | { | |
dc810e39 | 2118 | const char *section_name = symbol->section->name; |
e135f41b | 2119 | |
116c20d2 | 2120 | bfd_print_symbol_vandf (abfd, (void *) file, symbol); |
e135f41b NC |
2121 | |
2122 | fprintf (file," %-5s %04x %02x %02x", | |
2123 | section_name, | |
116c20d2 NC |
2124 | (unsigned) (aout_symbol (symbol)->desc & 0xffff), |
2125 | (unsigned) (aout_symbol (symbol)->other & 0xff), | |
2126 | (unsigned) (aout_symbol (symbol)->type & 0xff)); | |
e135f41b NC |
2127 | if (symbol->name) |
2128 | fprintf(file," %s", symbol->name); | |
2129 | } | |
2130 | break; | |
2131 | } | |
2132 | } | |
2133 | ||
2134 | /* If we don't have to allocate more than 1MB to hold the generic | |
2135 | symbols, we use the generic minisymbol method: it's faster, since | |
2136 | it only translates the symbols once, not multiple times. */ | |
2137 | #define MINISYM_THRESHOLD (1000000 / sizeof (asymbol)) | |
2138 | ||
2139 | /* Read minisymbols. For minisymbols, we use the unmodified a.out | |
2140 | symbols. The minisymbol_to_symbol function translates these into | |
2141 | BFD asymbol structures. */ | |
2142 | ||
2143 | long | |
116c20d2 NC |
2144 | NAME (aout, read_minisymbols) (bfd *abfd, |
2145 | bfd_boolean dynamic, | |
2146 | void * *minisymsp, | |
2147 | unsigned int *sizep) | |
e135f41b NC |
2148 | { |
2149 | if (dynamic) | |
116c20d2 NC |
2150 | /* We could handle the dynamic symbols here as well, but it's |
2151 | easier to hand them off. */ | |
2152 | return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep); | |
e135f41b NC |
2153 | |
2154 | if (! aout_get_external_symbols (abfd)) | |
2155 | return -1; | |
2156 | ||
2157 | if (obj_aout_external_sym_count (abfd) < MINISYM_THRESHOLD) | |
2158 | return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep); | |
2159 | ||
116c20d2 | 2160 | *minisymsp = (void *) obj_aout_external_syms (abfd); |
e135f41b NC |
2161 | |
2162 | /* By passing the external symbols back from this routine, we are | |
2163 | giving up control over the memory block. Clear | |
2164 | obj_aout_external_syms, so that we do not try to free it | |
2165 | ourselves. */ | |
2166 | obj_aout_external_syms (abfd) = NULL; | |
2167 | ||
2168 | *sizep = EXTERNAL_NLIST_SIZE; | |
2169 | return obj_aout_external_sym_count (abfd); | |
2170 | } | |
2171 | ||
2172 | /* Convert a minisymbol to a BFD asymbol. A minisymbol is just an | |
2173 | unmodified a.out symbol. The SYM argument is a structure returned | |
2174 | by bfd_make_empty_symbol, which we fill in here. */ | |
2175 | ||
2176 | asymbol * | |
116c20d2 NC |
2177 | NAME (aout, minisymbol_to_symbol) (bfd *abfd, |
2178 | bfd_boolean dynamic, | |
2179 | const void * minisym, | |
2180 | asymbol *sym) | |
e135f41b NC |
2181 | { |
2182 | if (dynamic | |
2183 | || obj_aout_external_sym_count (abfd) < MINISYM_THRESHOLD) | |
2184 | return _bfd_generic_minisymbol_to_symbol (abfd, dynamic, minisym, sym); | |
2185 | ||
2186 | memset (sym, 0, sizeof (aout_symbol_type)); | |
2187 | ||
2188 | /* We call translate_symbol_table to translate a single symbol. */ | |
116c20d2 | 2189 | if (! (NAME (aout, translate_symbol_table) |
e135f41b NC |
2190 | (abfd, |
2191 | (aout_symbol_type *) sym, | |
2192 | (struct external_nlist *) minisym, | |
2193 | (bfd_size_type) 1, | |
2194 | obj_aout_external_strings (abfd), | |
2195 | obj_aout_external_string_size (abfd), | |
b34976b6 | 2196 | FALSE))) |
e135f41b NC |
2197 | return NULL; |
2198 | ||
2199 | return sym; | |
2200 | } | |
2201 | ||
116c20d2 NC |
2202 | /* Provided a BFD, a section and an offset into the section, calculate |
2203 | and return the name of the source file and the line nearest to the | |
2204 | wanted location. */ | |
e135f41b | 2205 | |
b34976b6 | 2206 | bfd_boolean |
116c20d2 | 2207 | NAME (aout, find_nearest_line) (bfd *abfd, |
116c20d2 | 2208 | asymbol **symbols, |
fb167eb2 | 2209 | asection *section, |
116c20d2 NC |
2210 | bfd_vma offset, |
2211 | const char **filename_ptr, | |
2212 | const char **functionname_ptr, | |
fb167eb2 AM |
2213 | unsigned int *line_ptr, |
2214 | unsigned int *discriminator_ptr) | |
e135f41b | 2215 | { |
116c20d2 | 2216 | /* Run down the file looking for the filename, function and linenumber. */ |
e135f41b | 2217 | asymbol **p; |
dc810e39 AM |
2218 | const char *directory_name = NULL; |
2219 | const char *main_file_name = NULL; | |
2220 | const char *current_file_name = NULL; | |
116c20d2 | 2221 | const char *line_file_name = NULL; /* Value of current_file_name at line number. */ |
e135f41b NC |
2222 | bfd_vma low_line_vma = 0; |
2223 | bfd_vma low_func_vma = 0; | |
2224 | asymbol *func = 0; | |
2225 | size_t filelen, funclen; | |
2226 | char *buf; | |
2227 | ||
765cf5f6 | 2228 | *filename_ptr = bfd_get_filename (abfd); |
e135f41b NC |
2229 | *functionname_ptr = 0; |
2230 | *line_ptr = 0; | |
fb167eb2 AM |
2231 | if (discriminator_ptr) |
2232 | *discriminator_ptr = 0; | |
e135f41b | 2233 | |
116c20d2 | 2234 | if (symbols != NULL) |
e135f41b NC |
2235 | { |
2236 | for (p = symbols; *p; p++) | |
2237 | { | |
2238 | aout_symbol_type *q = (aout_symbol_type *)(*p); | |
2239 | next: | |
2240 | switch (q->type) | |
2241 | { | |
2242 | case N_TEXT: | |
2243 | /* If this looks like a file name symbol, and it comes after | |
2244 | the line number we have found so far, but before the | |
2245 | offset, then we have probably not found the right line | |
2246 | number. */ | |
2247 | if (q->symbol.value <= offset | |
2248 | && ((q->symbol.value > low_line_vma | |
2249 | && (line_file_name != NULL | |
2250 | || *line_ptr != 0)) | |
2251 | || (q->symbol.value > low_func_vma | |
2252 | && func != NULL))) | |
2253 | { | |
2254 | const char * symname; | |
2255 | ||
2256 | symname = q->symbol.name; | |
2257 | if (strcmp (symname + strlen (symname) - 2, ".o") == 0) | |
2258 | { | |
2259 | if (q->symbol.value > low_line_vma) | |
2260 | { | |
2261 | *line_ptr = 0; | |
2262 | line_file_name = NULL; | |
2263 | } | |
2264 | if (q->symbol.value > low_func_vma) | |
2265 | func = NULL; | |
2266 | } | |
2267 | } | |
2268 | break; | |
2269 | ||
2270 | case N_SO: | |
2271 | /* If this symbol is less than the offset, but greater than | |
2272 | the line number we have found so far, then we have not | |
2273 | found the right line number. */ | |
2274 | if (q->symbol.value <= offset) | |
2275 | { | |
2276 | if (q->symbol.value > low_line_vma) | |
2277 | { | |
2278 | *line_ptr = 0; | |
2279 | line_file_name = NULL; | |
2280 | } | |
2281 | if (q->symbol.value > low_func_vma) | |
2282 | func = NULL; | |
2283 | } | |
2284 | ||
2285 | main_file_name = current_file_name = q->symbol.name; | |
116c20d2 | 2286 | /* Look ahead to next symbol to check if that too is an N_SO. */ |
e135f41b NC |
2287 | p++; |
2288 | if (*p == NULL) | |
2289 | break; | |
2290 | q = (aout_symbol_type *)(*p); | |
116c20d2 | 2291 | if (q->type != (int) N_SO) |
e135f41b NC |
2292 | goto next; |
2293 | ||
116c20d2 | 2294 | /* Found a second N_SO First is directory; second is filename. */ |
e135f41b NC |
2295 | directory_name = current_file_name; |
2296 | main_file_name = current_file_name = q->symbol.name; | |
2297 | if (obj_textsec(abfd) != section) | |
2298 | goto done; | |
2299 | break; | |
2300 | case N_SOL: | |
2301 | current_file_name = q->symbol.name; | |
2302 | break; | |
2303 | ||
2304 | case N_SLINE: | |
2305 | case N_DSLINE: | |
2306 | case N_BSLINE: | |
2307 | /* We'll keep this if it resolves nearer than the one we have | |
2308 | already. */ | |
2309 | if (q->symbol.value >= low_line_vma | |
2310 | && q->symbol.value <= offset) | |
2311 | { | |
2312 | *line_ptr = q->desc; | |
2313 | low_line_vma = q->symbol.value; | |
2314 | line_file_name = current_file_name; | |
2315 | } | |
2316 | break; | |
2317 | ||
2318 | case N_FUN: | |
2319 | { | |
116c20d2 | 2320 | /* We'll keep this if it is nearer than the one we have already. */ |
e135f41b NC |
2321 | if (q->symbol.value >= low_func_vma && |
2322 | q->symbol.value <= offset) | |
2323 | { | |
2324 | low_func_vma = q->symbol.value; | |
116c20d2 | 2325 | func = (asymbol *) q; |
e135f41b NC |
2326 | } |
2327 | else if (q->symbol.value > offset) | |
2328 | goto done; | |
2329 | } | |
2330 | break; | |
2331 | } | |
2332 | } | |
2333 | } | |
2334 | ||
2335 | done: | |
2336 | if (*line_ptr != 0) | |
2337 | main_file_name = line_file_name; | |
2338 | ||
2339 | if (main_file_name == NULL | |
2340 | || main_file_name[0] == '/' | |
2341 | || directory_name == NULL) | |
2342 | filelen = 0; | |
2343 | else | |
2344 | filelen = strlen (directory_name) + strlen (main_file_name); | |
2345 | if (func == NULL) | |
2346 | funclen = 0; | |
2347 | else | |
2348 | funclen = strlen (bfd_asymbol_name (func)); | |
2349 | ||
c9594989 | 2350 | free (adata (abfd).line_buf); |
e135f41b NC |
2351 | if (filelen + funclen == 0) |
2352 | adata (abfd).line_buf = buf = NULL; | |
2353 | else | |
2354 | { | |
116c20d2 | 2355 | buf = bfd_malloc ((bfd_size_type) filelen + funclen + 3); |
e135f41b NC |
2356 | adata (abfd).line_buf = buf; |
2357 | if (buf == NULL) | |
b34976b6 | 2358 | return FALSE; |
e135f41b NC |
2359 | } |
2360 | ||
2361 | if (main_file_name != NULL) | |
2362 | { | |
2363 | if (main_file_name[0] == '/' || directory_name == NULL) | |
2364 | *filename_ptr = main_file_name; | |
2365 | else | |
2366 | { | |
2367 | sprintf (buf, "%s%s", directory_name, main_file_name); | |
2368 | *filename_ptr = buf; | |
2369 | buf += filelen + 1; | |
2370 | } | |
2371 | } | |
2372 | ||
2373 | if (func) | |
2374 | { | |
2375 | const char *function = func->name; | |
dc810e39 | 2376 | char *colon; |
e135f41b NC |
2377 | |
2378 | /* The caller expects a symbol name. We actually have a | |
2379 | function name, without the leading underscore. Put the | |
2380 | underscore back in, so that the caller gets a symbol name. */ | |
2381 | if (bfd_get_symbol_leading_char (abfd) == '\0') | |
2382 | strcpy (buf, function); | |
2383 | else | |
2384 | { | |
2385 | buf[0] = bfd_get_symbol_leading_char (abfd); | |
2386 | strcpy (buf + 1, function); | |
2387 | } | |
2388 | ||
2389 | /* Have to remove : stuff. */ | |
dc810e39 AM |
2390 | colon = strchr (buf, ':'); |
2391 | if (colon != NULL) | |
2392 | *colon = '\0'; | |
e135f41b NC |
2393 | *functionname_ptr = buf; |
2394 | } | |
2395 | ||
b34976b6 | 2396 | return TRUE; |
e135f41b NC |
2397 | } |
2398 | ||
2399 | int | |
a6b96beb AM |
2400 | NAME (aout, sizeof_headers) (bfd *abfd, |
2401 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
e135f41b | 2402 | { |
116c20d2 | 2403 | return adata (abfd).exec_bytes_size; |
e135f41b NC |
2404 | } |
2405 | ||
2406 | /* Free all information we have cached for this BFD. We can always | |
2407 | read it again later if we need it. */ | |
2408 | ||
b34976b6 | 2409 | bfd_boolean |
116c20d2 | 2410 | NAME (aout, bfd_free_cached_info) (bfd *abfd) |
e135f41b NC |
2411 | { |
2412 | asection *o; | |
2413 | ||
2414 | if (bfd_get_format (abfd) != bfd_object) | |
b34976b6 | 2415 | return TRUE; |
e135f41b | 2416 | |
c9594989 | 2417 | #define BFCI_FREE(x) do { free (x); x = NULL; } while (0) |
e135f41b | 2418 | BFCI_FREE (obj_aout_symbols (abfd)); |
116c20d2 | 2419 | |
e135f41b NC |
2420 | #ifdef USE_MMAP |
2421 | obj_aout_external_syms (abfd) = 0; | |
2422 | bfd_free_window (&obj_aout_sym_window (abfd)); | |
2423 | bfd_free_window (&obj_aout_string_window (abfd)); | |
2424 | obj_aout_external_strings (abfd) = 0; | |
2425 | #else | |
2426 | BFCI_FREE (obj_aout_external_syms (abfd)); | |
2427 | BFCI_FREE (obj_aout_external_strings (abfd)); | |
2428 | #endif | |
116c20d2 | 2429 | for (o = abfd->sections; o != NULL; o = o->next) |
e135f41b NC |
2430 | BFCI_FREE (o->relocation); |
2431 | #undef BFCI_FREE | |
2432 | ||
b34976b6 | 2433 | return TRUE; |
e135f41b NC |
2434 | } |
2435 | \f | |
e135f41b NC |
2436 | /* Routine to create an entry in an a.out link hash table. */ |
2437 | ||
2438 | struct bfd_hash_entry * | |
116c20d2 NC |
2439 | NAME (aout, link_hash_newfunc) (struct bfd_hash_entry *entry, |
2440 | struct bfd_hash_table *table, | |
2441 | const char *string) | |
e135f41b NC |
2442 | { |
2443 | struct aout_link_hash_entry *ret = (struct aout_link_hash_entry *) entry; | |
2444 | ||
2445 | /* Allocate the structure if it has not already been allocated by a | |
2446 | subclass. */ | |
116c20d2 NC |
2447 | if (ret == NULL) |
2448 | ret = bfd_hash_allocate (table, sizeof (* ret)); | |
2449 | if (ret == NULL) | |
2450 | return NULL; | |
e135f41b NC |
2451 | |
2452 | /* Call the allocation method of the superclass. */ | |
116c20d2 NC |
2453 | ret = (struct aout_link_hash_entry *) |
2454 | _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret, table, string); | |
e135f41b NC |
2455 | if (ret) |
2456 | { | |
2457 | /* Set local fields. */ | |
b34976b6 | 2458 | ret->written = FALSE; |
e135f41b NC |
2459 | ret->indx = -1; |
2460 | } | |
2461 | ||
2462 | return (struct bfd_hash_entry *) ret; | |
2463 | } | |
2464 | ||
2465 | /* Initialize an a.out link hash table. */ | |
2466 | ||
b34976b6 | 2467 | bfd_boolean |
116c20d2 NC |
2468 | NAME (aout, link_hash_table_init) (struct aout_link_hash_table *table, |
2469 | bfd *abfd, | |
2470 | struct bfd_hash_entry *(*newfunc) (struct bfd_hash_entry *, | |
2471 | struct bfd_hash_table *, | |
66eb6687 AM |
2472 | const char *), |
2473 | unsigned int entsize) | |
e135f41b | 2474 | { |
66eb6687 | 2475 | return _bfd_link_hash_table_init (&table->root, abfd, newfunc, entsize); |
e135f41b NC |
2476 | } |
2477 | ||
2478 | /* Create an a.out link hash table. */ | |
2479 | ||
2480 | struct bfd_link_hash_table * | |
116c20d2 | 2481 | NAME (aout, link_hash_table_create) (bfd *abfd) |
e135f41b NC |
2482 | { |
2483 | struct aout_link_hash_table *ret; | |
986f0783 | 2484 | size_t amt = sizeof (struct aout_link_hash_table); |
e135f41b | 2485 | |
22cdc249 | 2486 | ret = bfd_malloc (amt); |
e135f41b | 2487 | if (ret == NULL) |
116c20d2 NC |
2488 | return NULL; |
2489 | if (! NAME (aout, link_hash_table_init) (ret, abfd, | |
66eb6687 AM |
2490 | NAME (aout, link_hash_newfunc), |
2491 | sizeof (struct aout_link_hash_entry))) | |
e135f41b NC |
2492 | { |
2493 | free (ret); | |
116c20d2 | 2494 | return NULL; |
e135f41b NC |
2495 | } |
2496 | return &ret->root; | |
2497 | } | |
2498 | ||
116c20d2 NC |
2499 | /* Free up the internal symbols read from an a.out file. */ |
2500 | ||
2501 | static bfd_boolean | |
2502 | aout_link_free_symbols (bfd *abfd) | |
2503 | { | |
2504 | if (obj_aout_external_syms (abfd) != NULL) | |
2505 | { | |
2506 | #ifdef USE_MMAP | |
2507 | bfd_free_window (&obj_aout_sym_window (abfd)); | |
2508 | #else | |
2509 | free ((void *) obj_aout_external_syms (abfd)); | |
2510 | #endif | |
2511 | obj_aout_external_syms (abfd) = NULL; | |
2512 | } | |
2513 | ||
2514 | if (obj_aout_external_strings (abfd) != NULL) | |
2515 | { | |
2516 | #ifdef USE_MMAP | |
2517 | bfd_free_window (&obj_aout_string_window (abfd)); | |
2518 | #else | |
2519 | free ((void *) obj_aout_external_strings (abfd)); | |
2520 | #endif | |
2521 | obj_aout_external_strings (abfd) = NULL; | |
2522 | } | |
2523 | return TRUE; | |
2524 | } | |
2525 | ||
e135f41b NC |
2526 | /* Given an a.out BFD, add symbols to the global hash table as |
2527 | appropriate. */ | |
2528 | ||
b34976b6 | 2529 | bfd_boolean |
116c20d2 | 2530 | NAME (aout, link_add_symbols) (bfd *abfd, struct bfd_link_info *info) |
e135f41b NC |
2531 | { |
2532 | switch (bfd_get_format (abfd)) | |
2533 | { | |
2534 | case bfd_object: | |
2535 | return aout_link_add_object_symbols (abfd, info); | |
2536 | case bfd_archive: | |
2537 | return _bfd_generic_link_add_archive_symbols | |
2538 | (abfd, info, aout_link_check_archive_element); | |
2539 | default: | |
2540 | bfd_set_error (bfd_error_wrong_format); | |
b34976b6 | 2541 | return FALSE; |
e135f41b NC |
2542 | } |
2543 | } | |
2544 | ||
2545 | /* Add symbols from an a.out object file. */ | |
2546 | ||
b34976b6 | 2547 | static bfd_boolean |
116c20d2 | 2548 | aout_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info) |
e135f41b NC |
2549 | { |
2550 | if (! aout_get_external_symbols (abfd)) | |
b34976b6 | 2551 | return FALSE; |
e135f41b | 2552 | if (! aout_link_add_symbols (abfd, info)) |
b34976b6 | 2553 | return FALSE; |
e135f41b NC |
2554 | if (! info->keep_memory) |
2555 | { | |
2556 | if (! aout_link_free_symbols (abfd)) | |
b34976b6 | 2557 | return FALSE; |
e135f41b | 2558 | } |
b34976b6 | 2559 | return TRUE; |
e135f41b NC |
2560 | } |
2561 | ||
e135f41b NC |
2562 | /* Look through the internal symbols to see if this object file should |
2563 | be included in the link. We should include this object file if it | |
2564 | defines any symbols which are currently undefined. If this object | |
2565 | file defines a common symbol, then we may adjust the size of the | |
2566 | known symbol but we do not include the object file in the link | |
2567 | (unless there is some other reason to include it). */ | |
2568 | ||
b34976b6 | 2569 | static bfd_boolean |
116c20d2 NC |
2570 | aout_link_check_ar_symbols (bfd *abfd, |
2571 | struct bfd_link_info *info, | |
5d3236ee DK |
2572 | bfd_boolean *pneeded, |
2573 | bfd **subsbfd) | |
e135f41b | 2574 | { |
116c20d2 | 2575 | struct external_nlist *p; |
e135f41b NC |
2576 | struct external_nlist *pend; |
2577 | char *strings; | |
2578 | ||
b34976b6 | 2579 | *pneeded = FALSE; |
e135f41b NC |
2580 | |
2581 | /* Look through all the symbols. */ | |
2582 | p = obj_aout_external_syms (abfd); | |
2583 | pend = p + obj_aout_external_sym_count (abfd); | |
2584 | strings = obj_aout_external_strings (abfd); | |
2585 | for (; p < pend; p++) | |
2586 | { | |
dc810e39 | 2587 | int type = H_GET_8 (abfd, p->e_type); |
e135f41b NC |
2588 | const char *name; |
2589 | struct bfd_link_hash_entry *h; | |
2590 | ||
2591 | /* Ignore symbols that are not externally visible. This is an | |
2592 | optimization only, as we check the type more thoroughly | |
2593 | below. */ | |
2594 | if ((type & N_EXT) == 0 | |
2595 | || type == N_FN) | |
2596 | continue; | |
2597 | ||
2598 | name = strings + GET_WORD (abfd, p->e_strx); | |
b34976b6 | 2599 | h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE); |
e135f41b NC |
2600 | |
2601 | /* We are only interested in symbols that are currently | |
2602 | undefined or common. */ | |
116c20d2 | 2603 | if (h == NULL |
e135f41b NC |
2604 | || (h->type != bfd_link_hash_undefined |
2605 | && h->type != bfd_link_hash_common)) | |
2606 | continue; | |
2607 | ||
2608 | if (type == (N_TEXT | N_EXT) | |
2609 | || type == (N_DATA | N_EXT) | |
2610 | || type == (N_BSS | N_EXT) | |
2611 | || type == (N_ABS | N_EXT)) | |
2612 | { | |
2613 | /* This object file defines this symbol. We must link it | |
2614 | in. This is true regardless of whether the current | |
2615 | definition of the symbol is undefined or common. If the | |
2616 | current definition is common, we have a case in which we | |
2617 | have already seen an object file including | |
07d6d2b8 | 2618 | int a; |
e135f41b | 2619 | and this object file from the archive includes |
07d6d2b8 | 2620 | int a = 5; |
e135f41b NC |
2621 | In such a case we must include this object file. |
2622 | ||
2623 | FIXME: The SunOS 4.1.3 linker will pull in the archive | |
2624 | element if the symbol is defined in the .data section, | |
2625 | but not if it is defined in the .text section. That | |
2626 | seems a bit crazy to me, and I haven't implemented it. | |
2627 | However, it might be correct. */ | |
0e144ba7 AM |
2628 | if (!(*info->callbacks |
2629 | ->add_archive_element) (info, abfd, name, subsbfd)) | |
b95a0a31 | 2630 | continue; |
b34976b6 AM |
2631 | *pneeded = TRUE; |
2632 | return TRUE; | |
e135f41b NC |
2633 | } |
2634 | ||
2635 | if (type == (N_UNDF | N_EXT)) | |
2636 | { | |
2637 | bfd_vma value; | |
2638 | ||
2639 | value = GET_WORD (abfd, p->e_value); | |
2640 | if (value != 0) | |
2641 | { | |
2642 | /* This symbol is common in the object from the archive | |
2643 | file. */ | |
2644 | if (h->type == bfd_link_hash_undefined) | |
2645 | { | |
2646 | bfd *symbfd; | |
2647 | unsigned int power; | |
2648 | ||
2649 | symbfd = h->u.undef.abfd; | |
116c20d2 | 2650 | if (symbfd == NULL) |
e135f41b NC |
2651 | { |
2652 | /* This symbol was created as undefined from | |
2653 | outside BFD. We assume that we should link | |
2654 | in the object file. This is done for the -u | |
2655 | option in the linker. */ | |
0e144ba7 AM |
2656 | if (!(*info->callbacks |
2657 | ->add_archive_element) (info, abfd, name, subsbfd)) | |
b34976b6 AM |
2658 | return FALSE; |
2659 | *pneeded = TRUE; | |
2660 | return TRUE; | |
e135f41b NC |
2661 | } |
2662 | /* Turn the current link symbol into a common | |
2663 | symbol. It is already on the undefs list. */ | |
2664 | h->type = bfd_link_hash_common; | |
116c20d2 NC |
2665 | h->u.c.p = bfd_hash_allocate (&info->hash->table, |
2666 | sizeof (struct bfd_link_hash_common_entry)); | |
e135f41b | 2667 | if (h->u.c.p == NULL) |
b34976b6 | 2668 | return FALSE; |
e135f41b NC |
2669 | |
2670 | h->u.c.size = value; | |
2671 | ||
2672 | /* FIXME: This isn't quite right. The maximum | |
2673 | alignment of a common symbol should be set by the | |
2674 | architecture of the output file, not of the input | |
2675 | file. */ | |
2676 | power = bfd_log2 (value); | |
2677 | if (power > bfd_get_arch_info (abfd)->section_align_power) | |
2678 | power = bfd_get_arch_info (abfd)->section_align_power; | |
2679 | h->u.c.p->alignment_power = power; | |
2680 | ||
2681 | h->u.c.p->section = bfd_make_section_old_way (symbfd, | |
2682 | "COMMON"); | |
2683 | } | |
2684 | else | |
2685 | { | |
2686 | /* Adjust the size of the common symbol if | |
2687 | necessary. */ | |
2688 | if (value > h->u.c.size) | |
2689 | h->u.c.size = value; | |
2690 | } | |
2691 | } | |
2692 | } | |
2693 | } | |
2694 | ||
2695 | /* We do not need this object file. */ | |
b34976b6 | 2696 | return TRUE; |
e135f41b NC |
2697 | } |
2698 | ||
116c20d2 NC |
2699 | /* Check a single archive element to see if we need to include it in |
2700 | the link. *PNEEDED is set according to whether this element is | |
2701 | needed in the link or not. This is called from | |
2702 | _bfd_generic_link_add_archive_symbols. */ | |
2703 | ||
2704 | static bfd_boolean | |
2705 | aout_link_check_archive_element (bfd *abfd, | |
2706 | struct bfd_link_info *info, | |
13e570f8 AM |
2707 | struct bfd_link_hash_entry *h ATTRIBUTE_UNUSED, |
2708 | const char *name ATTRIBUTE_UNUSED, | |
116c20d2 NC |
2709 | bfd_boolean *pneeded) |
2710 | { | |
0e144ba7 AM |
2711 | bfd *oldbfd; |
2712 | bfd_boolean needed; | |
5d3236ee | 2713 | |
0e144ba7 | 2714 | if (!aout_get_external_symbols (abfd)) |
116c20d2 NC |
2715 | return FALSE; |
2716 | ||
0e144ba7 AM |
2717 | oldbfd = abfd; |
2718 | if (!aout_link_check_ar_symbols (abfd, info, pneeded, &abfd)) | |
116c20d2 NC |
2719 | return FALSE; |
2720 | ||
0e144ba7 AM |
2721 | needed = *pneeded; |
2722 | if (needed) | |
116c20d2 | 2723 | { |
5d3236ee DK |
2724 | /* Potentially, the add_archive_element hook may have set a |
2725 | substitute BFD for us. */ | |
0e144ba7 AM |
2726 | if (abfd != oldbfd) |
2727 | { | |
2728 | if (!info->keep_memory | |
2729 | && !aout_link_free_symbols (oldbfd)) | |
2730 | return FALSE; | |
2731 | if (!aout_get_external_symbols (abfd)) | |
2732 | return FALSE; | |
2733 | } | |
2734 | if (!aout_link_add_symbols (abfd, info)) | |
116c20d2 NC |
2735 | return FALSE; |
2736 | } | |
2737 | ||
0e144ba7 | 2738 | if (!info->keep_memory || !needed) |
116c20d2 | 2739 | { |
0e144ba7 | 2740 | if (!aout_link_free_symbols (abfd)) |
116c20d2 NC |
2741 | return FALSE; |
2742 | } | |
2743 | ||
2744 | return TRUE; | |
2745 | } | |
2746 | ||
e135f41b NC |
2747 | /* Add all symbols from an object file to the hash table. */ |
2748 | ||
b34976b6 | 2749 | static bfd_boolean |
116c20d2 | 2750 | aout_link_add_symbols (bfd *abfd, struct bfd_link_info *info) |
e135f41b | 2751 | { |
b34976b6 | 2752 | bfd_boolean (*add_one_symbol) |
116c20d2 NC |
2753 | (struct bfd_link_info *, bfd *, const char *, flagword, asection *, |
2754 | bfd_vma, const char *, bfd_boolean, bfd_boolean, | |
2755 | struct bfd_link_hash_entry **); | |
e135f41b NC |
2756 | struct external_nlist *syms; |
2757 | bfd_size_type sym_count; | |
2758 | char *strings; | |
b34976b6 | 2759 | bfd_boolean copy; |
e135f41b | 2760 | struct aout_link_hash_entry **sym_hash; |
116c20d2 | 2761 | struct external_nlist *p; |
e135f41b NC |
2762 | struct external_nlist *pend; |
2763 | ||
2764 | syms = obj_aout_external_syms (abfd); | |
2765 | sym_count = obj_aout_external_sym_count (abfd); | |
2766 | strings = obj_aout_external_strings (abfd); | |
2767 | if (info->keep_memory) | |
b34976b6 | 2768 | copy = FALSE; |
e135f41b | 2769 | else |
b34976b6 | 2770 | copy = TRUE; |
e135f41b NC |
2771 | |
2772 | if (aout_backend_info (abfd)->add_dynamic_symbols != NULL) | |
2773 | { | |
2774 | if (! ((*aout_backend_info (abfd)->add_dynamic_symbols) | |
2775 | (abfd, info, &syms, &sym_count, &strings))) | |
b34976b6 | 2776 | return FALSE; |
e135f41b NC |
2777 | } |
2778 | ||
2779 | /* We keep a list of the linker hash table entries that correspond | |
2780 | to particular symbols. We could just look them up in the hash | |
2781 | table, but keeping the list is more efficient. Perhaps this | |
2782 | should be conditional on info->keep_memory. */ | |
116c20d2 NC |
2783 | sym_hash = bfd_alloc (abfd, |
2784 | sym_count * sizeof (struct aout_link_hash_entry *)); | |
e135f41b | 2785 | if (sym_hash == NULL && sym_count != 0) |
b34976b6 | 2786 | return FALSE; |
e135f41b NC |
2787 | obj_aout_sym_hashes (abfd) = sym_hash; |
2788 | ||
2789 | add_one_symbol = aout_backend_info (abfd)->add_one_symbol; | |
2790 | if (add_one_symbol == NULL) | |
2791 | add_one_symbol = _bfd_generic_link_add_one_symbol; | |
2792 | ||
2793 | p = syms; | |
2794 | pend = p + sym_count; | |
2795 | for (; p < pend; p++, sym_hash++) | |
2796 | { | |
2797 | int type; | |
2798 | const char *name; | |
2799 | bfd_vma value; | |
2800 | asection *section; | |
2801 | flagword flags; | |
2802 | const char *string; | |
2803 | ||
2804 | *sym_hash = NULL; | |
2805 | ||
dc810e39 | 2806 | type = H_GET_8 (abfd, p->e_type); |
e135f41b | 2807 | |
e135f41b NC |
2808 | name = strings + GET_WORD (abfd, p->e_strx); |
2809 | value = GET_WORD (abfd, p->e_value); | |
2810 | flags = BSF_GLOBAL; | |
2811 | string = NULL; | |
2812 | switch (type) | |
2813 | { | |
2814 | default: | |
0c98115d PK |
2815 | /* Anything else should be a debugging symbol. */ |
2816 | BFD_ASSERT ((type & N_STAB) != 0); | |
2817 | continue; | |
e135f41b NC |
2818 | |
2819 | case N_UNDF: | |
2820 | case N_ABS: | |
2821 | case N_TEXT: | |
2822 | case N_DATA: | |
2823 | case N_BSS: | |
2824 | case N_REG: | |
2825 | case N_FN: | |
2826 | /* Ignore symbols that are not externally visible. */ | |
2827 | continue; | |
2828 | ||
2829 | case N_UNDF | N_EXT: | |
2830 | if (value == 0) | |
2831 | { | |
2832 | section = bfd_und_section_ptr; | |
2833 | flags = 0; | |
2834 | } | |
2835 | else | |
2836 | section = bfd_com_section_ptr; | |
2837 | break; | |
2838 | case N_ABS | N_EXT: | |
2839 | section = bfd_abs_section_ptr; | |
2840 | break; | |
2841 | case N_TEXT | N_EXT: | |
2842 | section = obj_textsec (abfd); | |
fd361982 | 2843 | value -= bfd_section_vma (section); |
e135f41b NC |
2844 | break; |
2845 | case N_DATA | N_EXT: | |
2846 | /* Treat N_SETV symbols as N_DATA symbol; see comment in | |
2847 | translate_from_native_sym_flags. */ | |
2848 | section = obj_datasec (abfd); | |
fd361982 | 2849 | value -= bfd_section_vma (section); |
e135f41b NC |
2850 | break; |
2851 | case N_BSS | N_EXT: | |
2852 | section = obj_bsssec (abfd); | |
fd361982 | 2853 | value -= bfd_section_vma (section); |
e135f41b NC |
2854 | break; |
2855 | } | |
2856 | ||
2857 | if (! ((*add_one_symbol) | |
b34976b6 | 2858 | (info, abfd, name, flags, section, value, string, copy, FALSE, |
e135f41b | 2859 | (struct bfd_link_hash_entry **) sym_hash))) |
b34976b6 | 2860 | return FALSE; |
e135f41b NC |
2861 | |
2862 | /* Restrict the maximum alignment of a common symbol based on | |
2863 | the architecture, since a.out has no way to represent | |
2864 | alignment requirements of a section in a .o file. FIXME: | |
2865 | This isn't quite right: it should use the architecture of the | |
2866 | output file, not the input files. */ | |
2867 | if ((*sym_hash)->root.type == bfd_link_hash_common | |
2868 | && ((*sym_hash)->root.u.c.p->alignment_power > | |
2869 | bfd_get_arch_info (abfd)->section_align_power)) | |
2870 | (*sym_hash)->root.u.c.p->alignment_power = | |
2871 | bfd_get_arch_info (abfd)->section_align_power; | |
2872 | ||
2873 | /* If this is a set symbol, and we are not building sets, then | |
2874 | it is possible for the hash entry to not have been set. In | |
2875 | such a case, treat the symbol as not globally defined. */ | |
2876 | if ((*sym_hash)->root.type == bfd_link_hash_new) | |
2877 | { | |
2878 | BFD_ASSERT ((flags & BSF_CONSTRUCTOR) != 0); | |
2879 | *sym_hash = NULL; | |
2880 | } | |
2881 | } | |
2882 | ||
b34976b6 | 2883 | return TRUE; |
e135f41b NC |
2884 | } |
2885 | \f | |
116c20d2 | 2886 | /* Look up an entry in an the header file hash table. */ |
e135f41b NC |
2887 | |
2888 | #define aout_link_includes_lookup(table, string, create, copy) \ | |
2889 | ((struct aout_link_includes_entry *) \ | |
2890 | bfd_hash_lookup (&(table)->root, (string), (create), (copy))) | |
2891 | ||
e135f41b NC |
2892 | /* The function to create a new entry in the header file hash table. */ |
2893 | ||
2894 | static struct bfd_hash_entry * | |
116c20d2 NC |
2895 | aout_link_includes_newfunc (struct bfd_hash_entry *entry, |
2896 | struct bfd_hash_table *table, | |
2897 | const char *string) | |
e135f41b | 2898 | { |
116c20d2 | 2899 | struct aout_link_includes_entry * ret = |
e135f41b NC |
2900 | (struct aout_link_includes_entry *) entry; |
2901 | ||
2902 | /* Allocate the structure if it has not already been allocated by a | |
2903 | subclass. */ | |
116c20d2 NC |
2904 | if (ret == NULL) |
2905 | ret = bfd_hash_allocate (table, | |
2906 | sizeof (struct aout_link_includes_entry)); | |
2907 | if (ret == NULL) | |
2908 | return NULL; | |
e135f41b NC |
2909 | |
2910 | /* Call the allocation method of the superclass. */ | |
2911 | ret = ((struct aout_link_includes_entry *) | |
2912 | bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string)); | |
2913 | if (ret) | |
116c20d2 NC |
2914 | /* Set local fields. */ |
2915 | ret->totals = NULL; | |
e135f41b NC |
2916 | |
2917 | return (struct bfd_hash_entry *) ret; | |
2918 | } | |
2919 | ||
116c20d2 | 2920 | static bfd_boolean |
7686d77d | 2921 | aout_link_write_other_symbol (struct bfd_hash_entry *bh, void *data) |
e135f41b | 2922 | { |
7686d77d | 2923 | struct aout_link_hash_entry *h = (struct aout_link_hash_entry *) bh; |
57402f1e | 2924 | struct aout_final_link_info *flaginfo = (struct aout_final_link_info *) data; |
116c20d2 NC |
2925 | bfd *output_bfd; |
2926 | int type; | |
2927 | bfd_vma val; | |
2928 | struct external_nlist outsym; | |
2929 | bfd_size_type indx; | |
986f0783 | 2930 | size_t amt; |
e135f41b | 2931 | |
116c20d2 NC |
2932 | if (h->root.type == bfd_link_hash_warning) |
2933 | { | |
2934 | h = (struct aout_link_hash_entry *) h->root.u.i.link; | |
2935 | if (h->root.type == bfd_link_hash_new) | |
2936 | return TRUE; | |
2937 | } | |
e135f41b | 2938 | |
57402f1e | 2939 | output_bfd = flaginfo->output_bfd; |
e135f41b | 2940 | |
116c20d2 | 2941 | if (aout_backend_info (output_bfd)->write_dynamic_symbol != NULL) |
e135f41b | 2942 | { |
116c20d2 | 2943 | if (! ((*aout_backend_info (output_bfd)->write_dynamic_symbol) |
57402f1e | 2944 | (output_bfd, flaginfo->info, h))) |
e135f41b | 2945 | { |
116c20d2 NC |
2946 | /* FIXME: No way to handle errors. */ |
2947 | abort (); | |
e135f41b | 2948 | } |
116c20d2 | 2949 | } |
e135f41b | 2950 | |
116c20d2 NC |
2951 | if (h->written) |
2952 | return TRUE; | |
e135f41b | 2953 | |
116c20d2 | 2954 | h->written = TRUE; |
e135f41b | 2955 | |
116c20d2 NC |
2956 | /* An indx of -2 means the symbol must be written. */ |
2957 | if (h->indx != -2 | |
57402f1e NC |
2958 | && (flaginfo->info->strip == strip_all |
2959 | || (flaginfo->info->strip == strip_some | |
2960 | && bfd_hash_lookup (flaginfo->info->keep_hash, h->root.root.string, | |
116c20d2 NC |
2961 | FALSE, FALSE) == NULL))) |
2962 | return TRUE; | |
e135f41b | 2963 | |
116c20d2 | 2964 | switch (h->root.type) |
e135f41b | 2965 | { |
116c20d2 NC |
2966 | default: |
2967 | abort (); | |
2968 | /* Avoid variable not initialized warnings. */ | |
2969 | return TRUE; | |
2970 | case bfd_link_hash_new: | |
2971 | /* This can happen for set symbols when sets are not being | |
07d6d2b8 | 2972 | built. */ |
116c20d2 NC |
2973 | return TRUE; |
2974 | case bfd_link_hash_undefined: | |
2975 | type = N_UNDF | N_EXT; | |
2976 | val = 0; | |
2977 | break; | |
2978 | case bfd_link_hash_defined: | |
2979 | case bfd_link_hash_defweak: | |
2980 | { | |
2981 | asection *sec; | |
2982 | ||
2983 | sec = h->root.u.def.section->output_section; | |
2984 | BFD_ASSERT (bfd_is_abs_section (sec) | |
2985 | || sec->owner == output_bfd); | |
2986 | if (sec == obj_textsec (output_bfd)) | |
2987 | type = h->root.type == bfd_link_hash_defined ? N_TEXT : N_WEAKT; | |
2988 | else if (sec == obj_datasec (output_bfd)) | |
2989 | type = h->root.type == bfd_link_hash_defined ? N_DATA : N_WEAKD; | |
2990 | else if (sec == obj_bsssec (output_bfd)) | |
2991 | type = h->root.type == bfd_link_hash_defined ? N_BSS : N_WEAKB; | |
2992 | else | |
2993 | type = h->root.type == bfd_link_hash_defined ? N_ABS : N_WEAKA; | |
2994 | type |= N_EXT; | |
2995 | val = (h->root.u.def.value | |
2996 | + sec->vma | |
2997 | + h->root.u.def.section->output_offset); | |
2998 | } | |
2999 | break; | |
3000 | case bfd_link_hash_common: | |
3001 | type = N_UNDF | N_EXT; | |
3002 | val = h->root.u.c.size; | |
3003 | break; | |
3004 | case bfd_link_hash_undefweak: | |
3005 | type = N_WEAKU; | |
3006 | val = 0; | |
1a0670f3 | 3007 | /* Fall through. */ |
116c20d2 NC |
3008 | case bfd_link_hash_indirect: |
3009 | case bfd_link_hash_warning: | |
3010 | /* FIXME: Ignore these for now. The circumstances under which | |
3011 | they should be written out are not clear to me. */ | |
3012 | return TRUE; | |
e135f41b NC |
3013 | } |
3014 | ||
116c20d2 | 3015 | H_PUT_8 (output_bfd, type, outsym.e_type); |
57402f1e | 3016 | indx = add_to_stringtab (output_bfd, flaginfo->strtab, h->root.root.string, |
116c20d2 NC |
3017 | FALSE); |
3018 | if (indx == (bfd_size_type) -1) | |
3019 | /* FIXME: No way to handle errors. */ | |
3020 | abort (); | |
e135f41b | 3021 | |
116c20d2 NC |
3022 | PUT_WORD (output_bfd, indx, outsym.e_strx); |
3023 | PUT_WORD (output_bfd, val, outsym.e_value); | |
e135f41b | 3024 | |
116c20d2 | 3025 | amt = EXTERNAL_NLIST_SIZE; |
57402f1e | 3026 | if (bfd_seek (output_bfd, flaginfo->symoff, SEEK_SET) != 0 |
116c20d2 NC |
3027 | || bfd_bwrite ((void *) &outsym, amt, output_bfd) != amt) |
3028 | /* FIXME: No way to handle errors. */ | |
3029 | abort (); | |
e135f41b | 3030 | |
57402f1e | 3031 | flaginfo->symoff += amt; |
116c20d2 NC |
3032 | h->indx = obj_aout_external_sym_count (output_bfd); |
3033 | ++obj_aout_external_sym_count (output_bfd); | |
e135f41b | 3034 | |
116c20d2 NC |
3035 | return TRUE; |
3036 | } | |
e135f41b | 3037 | |
116c20d2 | 3038 | /* Handle a link order which is supposed to generate a reloc. */ |
e135f41b | 3039 | |
116c20d2 | 3040 | static bfd_boolean |
57402f1e | 3041 | aout_link_reloc_link_order (struct aout_final_link_info *flaginfo, |
116c20d2 NC |
3042 | asection *o, |
3043 | struct bfd_link_order *p) | |
3044 | { | |
3045 | struct bfd_link_order_reloc *pr; | |
3046 | int r_index; | |
3047 | int r_extern; | |
3048 | reloc_howto_type *howto; | |
3049 | file_ptr *reloff_ptr; | |
3050 | struct reloc_std_external srel; | |
3051 | void * rel_ptr; | |
3052 | bfd_size_type rel_size; | |
e135f41b | 3053 | |
116c20d2 | 3054 | pr = p->u.reloc.p; |
e135f41b | 3055 | |
116c20d2 | 3056 | if (p->type == bfd_section_reloc_link_order) |
e135f41b | 3057 | { |
116c20d2 NC |
3058 | r_extern = 0; |
3059 | if (bfd_is_abs_section (pr->u.section)) | |
3060 | r_index = N_ABS | N_EXT; | |
3061 | else | |
e135f41b | 3062 | { |
57402f1e | 3063 | BFD_ASSERT (pr->u.section->owner == flaginfo->output_bfd); |
116c20d2 | 3064 | r_index = pr->u.section->target_index; |
e135f41b NC |
3065 | } |
3066 | } | |
116c20d2 | 3067 | else |
e135f41b | 3068 | { |
116c20d2 | 3069 | struct aout_link_hash_entry *h; |
e135f41b | 3070 | |
116c20d2 NC |
3071 | BFD_ASSERT (p->type == bfd_symbol_reloc_link_order); |
3072 | r_extern = 1; | |
3073 | h = ((struct aout_link_hash_entry *) | |
57402f1e | 3074 | bfd_wrapped_link_hash_lookup (flaginfo->output_bfd, flaginfo->info, |
116c20d2 NC |
3075 | pr->u.name, FALSE, FALSE, TRUE)); |
3076 | if (h != NULL | |
3077 | && h->indx >= 0) | |
3078 | r_index = h->indx; | |
3079 | else if (h != NULL) | |
3080 | { | |
3081 | /* We decided to strip this symbol, but it turns out that we | |
3082 | can't. Note that we lose the other and desc information | |
3083 | here. I don't think that will ever matter for a global | |
3084 | symbol. */ | |
3085 | h->indx = -2; | |
3086 | h->written = FALSE; | |
57402f1e | 3087 | if (!aout_link_write_other_symbol (&h->root.root, flaginfo)) |
116c20d2 NC |
3088 | return FALSE; |
3089 | r_index = h->indx; | |
e135f41b | 3090 | } |
116c20d2 | 3091 | else |
e135f41b | 3092 | { |
1a72702b AM |
3093 | (*flaginfo->info->callbacks->unattached_reloc) |
3094 | (flaginfo->info, pr->u.name, NULL, NULL, (bfd_vma) 0); | |
116c20d2 | 3095 | r_index = 0; |
e135f41b NC |
3096 | } |
3097 | } | |
3098 | ||
57402f1e | 3099 | howto = bfd_reloc_type_lookup (flaginfo->output_bfd, pr->reloc); |
116c20d2 | 3100 | if (howto == 0) |
e135f41b | 3101 | { |
116c20d2 NC |
3102 | bfd_set_error (bfd_error_bad_value); |
3103 | return FALSE; | |
e135f41b NC |
3104 | } |
3105 | ||
57402f1e NC |
3106 | if (o == obj_textsec (flaginfo->output_bfd)) |
3107 | reloff_ptr = &flaginfo->treloff; | |
3108 | else if (o == obj_datasec (flaginfo->output_bfd)) | |
3109 | reloff_ptr = &flaginfo->dreloff; | |
116c20d2 NC |
3110 | else |
3111 | abort (); | |
e135f41b | 3112 | |
116c20d2 | 3113 | #ifdef MY_put_reloc |
57402f1e | 3114 | MY_put_reloc(flaginfo->output_bfd, r_extern, r_index, p->offset, howto, |
116c20d2 NC |
3115 | &srel); |
3116 | #else | |
3117 | { | |
3118 | int r_pcrel; | |
3119 | int r_baserel; | |
3120 | int r_jmptable; | |
3121 | int r_relative; | |
3122 | int r_length; | |
e135f41b | 3123 | |
116c20d2 | 3124 | fprintf (stderr, "TODO: line %d in bfd/pdp11.c\n", __LINE__); |
e135f41b | 3125 | |
116c20d2 NC |
3126 | r_pcrel = howto->pc_relative; |
3127 | r_baserel = (howto->type & 8) != 0; | |
3128 | r_jmptable = (howto->type & 16) != 0; | |
3129 | r_relative = (howto->type & 32) != 0; | |
3130 | r_length = howto->size; | |
e135f41b | 3131 | |
57402f1e NC |
3132 | PUT_WORD (flaginfo->output_bfd, p->offset, srel.r_address); |
3133 | if (bfd_header_big_endian (flaginfo->output_bfd)) | |
116c20d2 NC |
3134 | { |
3135 | srel.r_index[0] = r_index >> 16; | |
3136 | srel.r_index[1] = r_index >> 8; | |
3137 | srel.r_index[2] = r_index; | |
3138 | srel.r_type[0] = | |
3139 | ((r_extern ? RELOC_STD_BITS_EXTERN_BIG : 0) | |
3140 | | (r_pcrel ? RELOC_STD_BITS_PCREL_BIG : 0) | |
3141 | | (r_baserel ? RELOC_STD_BITS_BASEREL_BIG : 0) | |
3142 | | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_BIG : 0) | |
3143 | | (r_relative ? RELOC_STD_BITS_RELATIVE_BIG : 0) | |
3144 | | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG)); | |
3145 | } | |
3146 | else | |
3147 | { | |
3148 | srel.r_index[2] = r_index >> 16; | |
3149 | srel.r_index[1] = r_index >> 8; | |
3150 | srel.r_index[0] = r_index; | |
3151 | srel.r_type[0] = | |
3152 | ((r_extern ? RELOC_STD_BITS_EXTERN_LITTLE : 0) | |
3153 | | (r_pcrel ? RELOC_STD_BITS_PCREL_LITTLE : 0) | |
3154 | | (r_baserel ? RELOC_STD_BITS_BASEREL_LITTLE : 0) | |
3155 | | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_LITTLE : 0) | |
3156 | | (r_relative ? RELOC_STD_BITS_RELATIVE_LITTLE : 0) | |
3157 | | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE)); | |
3158 | } | |
3159 | } | |
3160 | #endif | |
3161 | rel_ptr = (void *) &srel; | |
e135f41b | 3162 | |
116c20d2 NC |
3163 | /* We have to write the addend into the object file, since |
3164 | standard a.out relocs are in place. It would be more | |
3165 | reliable if we had the current contents of the file here, | |
3166 | rather than assuming zeroes, but we can't read the file since | |
3167 | it was opened using bfd_openw. */ | |
3168 | if (pr->addend != 0) | |
e135f41b | 3169 | { |
116c20d2 NC |
3170 | bfd_size_type size; |
3171 | bfd_reloc_status_type r; | |
3172 | bfd_byte *buf; | |
3173 | bfd_boolean ok; | |
3174 | ||
3175 | size = bfd_get_reloc_size (howto); | |
3176 | buf = bfd_zmalloc (size); | |
6346d5ca | 3177 | if (buf == NULL && size != 0) |
116c20d2 | 3178 | return FALSE; |
57402f1e | 3179 | r = MY_relocate_contents (howto, flaginfo->output_bfd, |
116c20d2 NC |
3180 | pr->addend, buf); |
3181 | switch (r) | |
3182 | { | |
3183 | case bfd_reloc_ok: | |
3184 | break; | |
3185 | default: | |
3186 | case bfd_reloc_outofrange: | |
3187 | abort (); | |
3188 | case bfd_reloc_overflow: | |
1a72702b AM |
3189 | (*flaginfo->info->callbacks->reloc_overflow) |
3190 | (flaginfo->info, NULL, | |
3191 | (p->type == bfd_section_reloc_link_order | |
fd361982 | 3192 | ? bfd_section_name (pr->u.section) |
1a72702b AM |
3193 | : pr->u.name), |
3194 | howto->name, pr->addend, NULL, | |
3195 | (asection *) NULL, (bfd_vma) 0); | |
116c20d2 NC |
3196 | break; |
3197 | } | |
57402f1e | 3198 | ok = bfd_set_section_contents (flaginfo->output_bfd, o, |
116c20d2 NC |
3199 | (void *) buf, |
3200 | (file_ptr) p->offset, | |
3201 | size); | |
3202 | free (buf); | |
3203 | if (! ok) | |
3204 | return FALSE; | |
e135f41b NC |
3205 | } |
3206 | ||
57402f1e NC |
3207 | rel_size = obj_reloc_entry_size (flaginfo->output_bfd); |
3208 | if (bfd_seek (flaginfo->output_bfd, *reloff_ptr, SEEK_SET) != 0 | |
3209 | || bfd_bwrite (rel_ptr, rel_size, flaginfo->output_bfd) != rel_size) | |
b34976b6 | 3210 | return FALSE; |
e135f41b | 3211 | |
116c20d2 | 3212 | *reloff_ptr += rel_size; |
e135f41b | 3213 | |
116c20d2 NC |
3214 | /* Assert that the relocs have not run into the symbols, and that n |
3215 | the text relocs have not run into the data relocs. */ | |
57402f1e NC |
3216 | BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (flaginfo->output_bfd) |
3217 | && (reloff_ptr != &flaginfo->treloff | |
116c20d2 | 3218 | || (*reloff_ptr |
57402f1e | 3219 | <= obj_datasec (flaginfo->output_bfd)->rel_filepos))); |
e135f41b | 3220 | |
116c20d2 NC |
3221 | return TRUE; |
3222 | } | |
e135f41b | 3223 | |
116c20d2 NC |
3224 | /* Get the section corresponding to a reloc index. */ |
3225 | ||
3226 | static inline asection * | |
3227 | aout_reloc_type_to_section (bfd *abfd, int type) | |
3228 | { | |
3229 | switch (type) | |
e135f41b | 3230 | { |
116c20d2 NC |
3231 | case RTEXT: return obj_textsec (abfd); |
3232 | case RDATA: return obj_datasec (abfd); | |
3233 | case RBSS: return obj_bsssec (abfd); | |
3234 | case RABS: return bfd_abs_section_ptr; | |
3235 | case REXT: return bfd_und_section_ptr; | |
3236 | default: abort (); | |
e135f41b | 3237 | } |
e135f41b NC |
3238 | } |
3239 | ||
b34976b6 | 3240 | static bfd_boolean |
57402f1e | 3241 | pdp11_aout_link_input_section (struct aout_final_link_info *flaginfo, |
116c20d2 NC |
3242 | bfd *input_bfd, |
3243 | asection *input_section, | |
3244 | bfd_byte *relocs, | |
3245 | bfd_size_type rel_size, | |
3246 | bfd_byte *contents) | |
e135f41b | 3247 | { |
116c20d2 NC |
3248 | bfd_boolean (*check_dynamic_reloc) |
3249 | (struct bfd_link_info *, bfd *, asection *, | |
3250 | struct aout_link_hash_entry *, void *, bfd_byte *, bfd_boolean *, | |
3251 | bfd_vma *); | |
e135f41b | 3252 | bfd *output_bfd; |
116c20d2 NC |
3253 | bfd_boolean relocatable; |
3254 | struct external_nlist *syms; | |
e135f41b | 3255 | char *strings; |
116c20d2 | 3256 | struct aout_link_hash_entry **sym_hashes; |
e135f41b | 3257 | int *symbol_map; |
116c20d2 NC |
3258 | bfd_byte *rel; |
3259 | bfd_byte *rel_end; | |
e135f41b | 3260 | |
57402f1e | 3261 | output_bfd = flaginfo->output_bfd; |
116c20d2 | 3262 | check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc; |
e135f41b | 3263 | |
116c20d2 NC |
3264 | BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_SIZE); |
3265 | BFD_ASSERT (input_bfd->xvec->header_byteorder | |
3266 | == output_bfd->xvec->header_byteorder); | |
e135f41b | 3267 | |
0e1862bb | 3268 | relocatable = bfd_link_relocatable (flaginfo->info); |
116c20d2 NC |
3269 | syms = obj_aout_external_syms (input_bfd); |
3270 | strings = obj_aout_external_strings (input_bfd); | |
3271 | sym_hashes = obj_aout_sym_hashes (input_bfd); | |
57402f1e | 3272 | symbol_map = flaginfo->symbol_map; |
116c20d2 | 3273 | |
116c20d2 NC |
3274 | rel = relocs; |
3275 | rel_end = rel + rel_size; | |
3276 | for (; rel < rel_end; rel += RELOC_SIZE) | |
e135f41b | 3277 | { |
116c20d2 NC |
3278 | bfd_vma r_addr; |
3279 | int r_index; | |
3280 | int r_type; | |
3281 | int r_pcrel; | |
3282 | int r_extern; | |
3283 | reloc_howto_type *howto; | |
3284 | struct aout_link_hash_entry *h = NULL; | |
3285 | bfd_vma relocation; | |
3286 | bfd_reloc_status_type r; | |
3287 | int reloc_entry; | |
e135f41b | 3288 | |
116c20d2 NC |
3289 | reloc_entry = GET_WORD (input_bfd, (void *) rel); |
3290 | if (reloc_entry == 0) | |
e135f41b NC |
3291 | continue; |
3292 | ||
116c20d2 NC |
3293 | { |
3294 | unsigned int howto_idx; | |
e135f41b | 3295 | |
116c20d2 NC |
3296 | r_index = (reloc_entry & RIDXMASK) >> 4; |
3297 | r_type = reloc_entry & RTYPE; | |
3298 | r_pcrel = reloc_entry & RELFLG; | |
3299 | r_addr = (char *) rel - (char *) relocs; | |
e135f41b | 3300 | |
116c20d2 | 3301 | r_extern = (r_type == REXT); |
e135f41b | 3302 | |
116c20d2 NC |
3303 | howto_idx = r_pcrel; |
3304 | BFD_ASSERT (howto_idx < TABLE_SIZE (howto_table_pdp11)); | |
3305 | howto = howto_table_pdp11 + howto_idx; | |
3306 | } | |
3307 | ||
3308 | if (relocatable) | |
e135f41b | 3309 | { |
116c20d2 NC |
3310 | /* We are generating a relocatable output file, and must |
3311 | modify the reloc accordingly. */ | |
3312 | if (r_extern) | |
3313 | { | |
3314 | /* If we know the symbol this relocation is against, | |
3315 | convert it into a relocation against a section. This | |
3316 | is what the native linker does. */ | |
3317 | h = sym_hashes[r_index]; | |
3318 | if (h != NULL | |
3319 | && (h->root.type == bfd_link_hash_defined | |
3320 | || h->root.type == bfd_link_hash_defweak)) | |
3321 | { | |
3322 | asection *output_section; | |
e135f41b | 3323 | |
116c20d2 NC |
3324 | /* Compute a new r_index. */ |
3325 | output_section = h->root.u.def.section->output_section; | |
e135f41b | 3326 | if (output_section == obj_textsec (output_bfd)) |
116c20d2 | 3327 | r_type = N_TEXT; |
e135f41b | 3328 | else if (output_section == obj_datasec (output_bfd)) |
116c20d2 | 3329 | r_type = N_DATA; |
e135f41b | 3330 | else if (output_section == obj_bsssec (output_bfd)) |
116c20d2 | 3331 | r_type = N_BSS; |
e135f41b | 3332 | else |
116c20d2 | 3333 | r_type = N_ABS; |
e135f41b | 3334 | |
116c20d2 NC |
3335 | /* Add the symbol value and the section VMA to the |
3336 | addend stored in the contents. */ | |
3337 | relocation = (h->root.u.def.value | |
3338 | + output_section->vma | |
3339 | + h->root.u.def.section->output_offset); | |
e135f41b | 3340 | } |
116c20d2 | 3341 | else |
e135f41b | 3342 | { |
116c20d2 NC |
3343 | /* We must change r_index according to the symbol |
3344 | map. */ | |
3345 | r_index = symbol_map[r_index]; | |
e135f41b | 3346 | |
116c20d2 | 3347 | if (r_index == -1) |
e135f41b | 3348 | { |
116c20d2 | 3349 | if (h != NULL) |
e135f41b | 3350 | { |
116c20d2 | 3351 | /* We decided to strip this symbol, but it |
07d6d2b8 AM |
3352 | turns out that we can't. Note that we |
3353 | lose the other and desc information here. | |
3354 | I don't think that will ever matter for a | |
3355 | global symbol. */ | |
116c20d2 | 3356 | if (h->indx < 0) |
e135f41b | 3357 | { |
116c20d2 NC |
3358 | h->indx = -2; |
3359 | h->written = FALSE; | |
7686d77d | 3360 | if (!aout_link_write_other_symbol (&h->root.root, |
57402f1e | 3361 | flaginfo)) |
116c20d2 | 3362 | return FALSE; |
e135f41b | 3363 | } |
116c20d2 NC |
3364 | r_index = h->indx; |
3365 | } | |
3366 | else | |
3367 | { | |
3368 | const char *name; | |
3369 | ||
3370 | name = strings + GET_WORD (input_bfd, | |
3371 | syms[r_index].e_strx); | |
1a72702b AM |
3372 | (*flaginfo->info->callbacks->unattached_reloc) |
3373 | (flaginfo->info, name, input_bfd, input_section, | |
3374 | r_addr); | |
116c20d2 | 3375 | r_index = 0; |
e135f41b NC |
3376 | } |
3377 | } | |
116c20d2 NC |
3378 | |
3379 | relocation = 0; | |
e135f41b NC |
3380 | } |
3381 | ||
116c20d2 NC |
3382 | /* Write out the new r_index value. */ |
3383 | reloc_entry = GET_WORD (input_bfd, rel); | |
3384 | reloc_entry &= RIDXMASK; | |
3385 | reloc_entry |= r_index << 4; | |
3386 | PUT_WORD (input_bfd, reloc_entry, rel); | |
3387 | } | |
3388 | else | |
3389 | { | |
3390 | asection *section; | |
3391 | ||
3392 | /* This is a relocation against a section. We must | |
3393 | adjust by the amount that the section moved. */ | |
3394 | section = aout_reloc_type_to_section (input_bfd, r_type); | |
3395 | relocation = (section->output_section->vma | |
3396 | + section->output_offset | |
3397 | - section->vma); | |
3398 | } | |
3399 | ||
3400 | /* Change the address of the relocation. */ | |
3401 | fprintf (stderr, "TODO: change the address of the relocation\n"); | |
3402 | ||
3403 | /* Adjust a PC relative relocation by removing the reference | |
3404 | to the original address in the section and including the | |
3405 | reference to the new address. */ | |
3406 | if (r_pcrel) | |
3407 | relocation -= (input_section->output_section->vma | |
3408 | + input_section->output_offset | |
3409 | - input_section->vma); | |
3410 | ||
3411 | #ifdef MY_relocatable_reloc | |
3412 | MY_relocatable_reloc (howto, output_bfd, rel, relocation, r_addr); | |
3413 | #endif | |
3414 | ||
3415 | if (relocation == 0) | |
3416 | r = bfd_reloc_ok; | |
3417 | else | |
3418 | r = MY_relocate_contents (howto, | |
3419 | input_bfd, relocation, | |
3420 | contents + r_addr); | |
3421 | } | |
3422 | else | |
3423 | { | |
3424 | bfd_boolean hundef; | |
3425 | ||
3426 | /* We are generating an executable, and must do a full | |
3427 | relocation. */ | |
3428 | hundef = FALSE; | |
3429 | if (r_extern) | |
3430 | { | |
3431 | h = sym_hashes[r_index]; | |
3432 | ||
3433 | if (h != NULL | |
3434 | && (h->root.type == bfd_link_hash_defined | |
3435 | || h->root.type == bfd_link_hash_defweak)) | |
e135f41b | 3436 | { |
116c20d2 NC |
3437 | relocation = (h->root.u.def.value |
3438 | + h->root.u.def.section->output_section->vma | |
3439 | + h->root.u.def.section->output_offset); | |
e135f41b | 3440 | } |
116c20d2 NC |
3441 | else if (h != NULL |
3442 | && h->root.type == bfd_link_hash_undefweak) | |
3443 | relocation = 0; | |
e135f41b NC |
3444 | else |
3445 | { | |
116c20d2 NC |
3446 | hundef = TRUE; |
3447 | relocation = 0; | |
3448 | } | |
3449 | } | |
3450 | else | |
3451 | { | |
3452 | asection *section; | |
e135f41b | 3453 | |
116c20d2 NC |
3454 | section = aout_reloc_type_to_section (input_bfd, r_type); |
3455 | relocation = (section->output_section->vma | |
3456 | + section->output_offset | |
3457 | - section->vma); | |
3458 | if (r_pcrel) | |
3459 | relocation += input_section->vma; | |
3460 | } | |
e135f41b | 3461 | |
116c20d2 NC |
3462 | if (check_dynamic_reloc != NULL) |
3463 | { | |
3464 | bfd_boolean skip; | |
e135f41b | 3465 | |
116c20d2 | 3466 | if (! ((*check_dynamic_reloc) |
57402f1e | 3467 | (flaginfo->info, input_bfd, input_section, h, |
116c20d2 NC |
3468 | (void *) rel, contents, &skip, &relocation))) |
3469 | return FALSE; | |
3470 | if (skip) | |
3471 | continue; | |
3472 | } | |
3473 | ||
3474 | /* Now warn if a global symbol is undefined. We could not | |
07d6d2b8 AM |
3475 | do this earlier, because check_dynamic_reloc might want |
3476 | to skip this reloc. */ | |
0e1862bb | 3477 | if (hundef && ! bfd_link_pic (flaginfo->info)) |
116c20d2 NC |
3478 | { |
3479 | const char *name; | |
3480 | ||
3481 | if (h != NULL) | |
3482 | name = h->root.root.string; | |
3483 | else | |
3484 | name = strings + GET_WORD (input_bfd, syms[r_index].e_strx); | |
1a72702b AM |
3485 | (*flaginfo->info->callbacks->undefined_symbol) |
3486 | (flaginfo->info, name, input_bfd, input_section, | |
3487 | r_addr, TRUE); | |
e135f41b | 3488 | } |
116c20d2 NC |
3489 | |
3490 | r = MY_final_link_relocate (howto, | |
3491 | input_bfd, input_section, | |
3492 | contents, r_addr, relocation, | |
3493 | (bfd_vma) 0); | |
e135f41b NC |
3494 | } |
3495 | ||
116c20d2 | 3496 | if (r != bfd_reloc_ok) |
e135f41b | 3497 | { |
116c20d2 NC |
3498 | switch (r) |
3499 | { | |
3500 | default: | |
3501 | case bfd_reloc_outofrange: | |
3502 | abort (); | |
3503 | case bfd_reloc_overflow: | |
3504 | { | |
3505 | const char *name; | |
3506 | ||
3507 | if (h != NULL) | |
3508 | name = NULL; | |
3509 | else if (r_extern) | |
3510 | name = strings + GET_WORD (input_bfd, | |
3511 | syms[r_index].e_strx); | |
3512 | else | |
3513 | { | |
3514 | asection *s; | |
3515 | ||
3516 | s = aout_reloc_type_to_section (input_bfd, r_type); | |
fd361982 | 3517 | name = bfd_section_name (s); |
116c20d2 | 3518 | } |
1a72702b AM |
3519 | (*flaginfo->info->callbacks->reloc_overflow) |
3520 | (flaginfo->info, (h ? &h->root : NULL), name, howto->name, | |
3521 | (bfd_vma) 0, input_bfd, input_section, r_addr); | |
116c20d2 NC |
3522 | } |
3523 | break; | |
3524 | } | |
e135f41b | 3525 | } |
e135f41b NC |
3526 | } |
3527 | ||
116c20d2 NC |
3528 | return TRUE; |
3529 | } | |
3530 | ||
3531 | /* Link an a.out section into the output file. */ | |
3532 | ||
3533 | static bfd_boolean | |
57402f1e | 3534 | aout_link_input_section (struct aout_final_link_info *flaginfo, |
116c20d2 NC |
3535 | bfd *input_bfd, |
3536 | asection *input_section, | |
3537 | file_ptr *reloff_ptr, | |
3538 | bfd_size_type rel_size) | |
3539 | { | |
3540 | bfd_size_type input_size; | |
3541 | void * relocs; | |
3542 | ||
3543 | /* Get the section contents. */ | |
3544 | input_size = input_section->size; | |
3545 | if (! bfd_get_section_contents (input_bfd, input_section, | |
57402f1e | 3546 | (void *) flaginfo->contents, |
116c20d2 NC |
3547 | (file_ptr) 0, input_size)) |
3548 | return FALSE; | |
3549 | ||
3550 | /* Read in the relocs if we haven't already done it. */ | |
3551 | if (aout_section_data (input_section) != NULL | |
3552 | && aout_section_data (input_section)->relocs != NULL) | |
3553 | relocs = aout_section_data (input_section)->relocs; | |
3554 | else | |
e135f41b | 3555 | { |
57402f1e | 3556 | relocs = flaginfo->relocs; |
116c20d2 NC |
3557 | if (rel_size > 0) |
3558 | { | |
3559 | if (bfd_seek (input_bfd, input_section->rel_filepos, SEEK_SET) != 0 | |
3560 | || bfd_bread (relocs, rel_size, input_bfd) != rel_size) | |
3561 | return FALSE; | |
3562 | } | |
3563 | } | |
e135f41b | 3564 | |
116c20d2 | 3565 | /* Relocate the section contents. */ |
57402f1e | 3566 | if (! pdp11_aout_link_input_section (flaginfo, input_bfd, input_section, |
116c20d2 | 3567 | (bfd_byte *) relocs, |
57402f1e | 3568 | rel_size, flaginfo->contents)) |
116c20d2 NC |
3569 | return FALSE; |
3570 | ||
3571 | /* Write out the section contents. */ | |
57402f1e | 3572 | if (! bfd_set_section_contents (flaginfo->output_bfd, |
116c20d2 | 3573 | input_section->output_section, |
57402f1e | 3574 | (void *) flaginfo->contents, |
116c20d2 NC |
3575 | (file_ptr) input_section->output_offset, |
3576 | input_size)) | |
3577 | return FALSE; | |
3578 | ||
3579 | /* If we are producing relocatable output, the relocs were | |
3580 | modified, and we now write them out. */ | |
0e1862bb | 3581 | if (bfd_link_relocatable (flaginfo->info) && rel_size > 0) |
116c20d2 | 3582 | { |
57402f1e | 3583 | if (bfd_seek (flaginfo->output_bfd, *reloff_ptr, SEEK_SET) != 0) |
116c20d2 | 3584 | return FALSE; |
57402f1e | 3585 | if (bfd_bwrite (relocs, rel_size, flaginfo->output_bfd) != rel_size) |
116c20d2 NC |
3586 | return FALSE; |
3587 | *reloff_ptr += rel_size; | |
3588 | ||
3589 | /* Assert that the relocs have not run into the symbols, and | |
3590 | that if these are the text relocs they have not run into the | |
3591 | data relocs. */ | |
57402f1e NC |
3592 | BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (flaginfo->output_bfd) |
3593 | && (reloff_ptr != &flaginfo->treloff | |
116c20d2 | 3594 | || (*reloff_ptr |
57402f1e | 3595 | <= obj_datasec (flaginfo->output_bfd)->rel_filepos))); |
116c20d2 NC |
3596 | } |
3597 | ||
3598 | return TRUE; | |
3599 | } | |
3600 | ||
3601 | /* Link an a.out input BFD into the output file. */ | |
3602 | ||
3603 | static bfd_boolean | |
57402f1e | 3604 | aout_link_input_bfd (struct aout_final_link_info *flaginfo, bfd *input_bfd) |
116c20d2 | 3605 | { |
116c20d2 NC |
3606 | BFD_ASSERT (bfd_get_format (input_bfd) == bfd_object); |
3607 | ||
3608 | /* If this is a dynamic object, it may need special handling. */ | |
3609 | if ((input_bfd->flags & DYNAMIC) != 0 | |
3610 | && aout_backend_info (input_bfd)->link_dynamic_object != NULL) | |
3611 | return ((*aout_backend_info (input_bfd)->link_dynamic_object) | |
57402f1e | 3612 | (flaginfo->info, input_bfd)); |
116c20d2 NC |
3613 | |
3614 | /* Get the symbols. We probably have them already, unless | |
57402f1e | 3615 | flaginfo->info->keep_memory is FALSE. */ |
116c20d2 NC |
3616 | if (! aout_get_external_symbols (input_bfd)) |
3617 | return FALSE; | |
3618 | ||
116c20d2 | 3619 | /* Write out the symbols and get a map of the new indices. The map |
57402f1e NC |
3620 | is placed into flaginfo->symbol_map. */ |
3621 | if (! aout_link_write_symbols (flaginfo, input_bfd)) | |
116c20d2 NC |
3622 | return FALSE; |
3623 | ||
3624 | /* Relocate and write out the sections. These functions use the | |
3625 | symbol map created by aout_link_write_symbols. The linker_mark | |
3626 | field will be set if these sections are to be included in the | |
3627 | link, which will normally be the case. */ | |
3628 | if (obj_textsec (input_bfd)->linker_mark) | |
3629 | { | |
57402f1e | 3630 | if (! aout_link_input_section (flaginfo, input_bfd, |
116c20d2 | 3631 | obj_textsec (input_bfd), |
57402f1e | 3632 | &flaginfo->treloff, |
116c20d2 NC |
3633 | exec_hdr (input_bfd)->a_trsize)) |
3634 | return FALSE; | |
3635 | } | |
3636 | if (obj_datasec (input_bfd)->linker_mark) | |
3637 | { | |
57402f1e | 3638 | if (! aout_link_input_section (flaginfo, input_bfd, |
116c20d2 | 3639 | obj_datasec (input_bfd), |
57402f1e | 3640 | &flaginfo->dreloff, |
116c20d2 | 3641 | exec_hdr (input_bfd)->a_drsize)) |
b34976b6 | 3642 | return FALSE; |
116c20d2 NC |
3643 | } |
3644 | ||
3645 | /* If we are not keeping memory, we don't need the symbols any | |
3646 | longer. We still need them if we are keeping memory, because the | |
3647 | strings in the hash table point into them. */ | |
57402f1e | 3648 | if (! flaginfo->info->keep_memory) |
116c20d2 NC |
3649 | { |
3650 | if (! aout_link_free_symbols (input_bfd)) | |
b34976b6 | 3651 | return FALSE; |
e135f41b NC |
3652 | } |
3653 | ||
b34976b6 | 3654 | return TRUE; |
e135f41b NC |
3655 | } |
3656 | ||
116c20d2 NC |
3657 | /* Do the final link step. This is called on the output BFD. The |
3658 | INFO structure should point to a list of BFDs linked through the | |
c72f2fb2 | 3659 | link.next field which can be used to find each BFD which takes part |
116c20d2 NC |
3660 | in the output. Also, each section in ABFD should point to a list |
3661 | of bfd_link_order structures which list all the input sections for | |
3662 | the output section. */ | |
e135f41b | 3663 | |
116c20d2 NC |
3664 | bfd_boolean |
3665 | NAME (aout, final_link) (bfd *abfd, | |
3666 | struct bfd_link_info *info, | |
3667 | void (*callback) (bfd *, file_ptr *, file_ptr *, file_ptr *)) | |
e135f41b | 3668 | { |
116c20d2 NC |
3669 | struct aout_final_link_info aout_info; |
3670 | bfd_boolean includes_hash_initialized = FALSE; | |
3671 | bfd *sub; | |
3672 | bfd_size_type trsize, drsize; | |
3673 | bfd_size_type max_contents_size; | |
3674 | bfd_size_type max_relocs_size; | |
3675 | bfd_size_type max_sym_count; | |
116c20d2 NC |
3676 | struct bfd_link_order *p; |
3677 | asection *o; | |
3678 | bfd_boolean have_link_order_relocs; | |
e135f41b | 3679 | |
0e1862bb | 3680 | if (bfd_link_pic (info)) |
116c20d2 | 3681 | abfd->flags |= DYNAMIC; |
e92d460e | 3682 | |
fa1477dc | 3683 | separate_i_d = info->separate_code; |
116c20d2 NC |
3684 | aout_info.info = info; |
3685 | aout_info.output_bfd = abfd; | |
3686 | aout_info.contents = NULL; | |
3687 | aout_info.relocs = NULL; | |
3688 | aout_info.symbol_map = NULL; | |
3689 | aout_info.output_syms = NULL; | |
e135f41b | 3690 | |
66eb6687 AM |
3691 | if (!bfd_hash_table_init_n (&aout_info.includes.root, |
3692 | aout_link_includes_newfunc, | |
3693 | sizeof (struct aout_link_includes_entry), | |
3694 | 251)) | |
116c20d2 NC |
3695 | goto error_return; |
3696 | includes_hash_initialized = TRUE; | |
3697 | ||
3698 | /* Figure out the largest section size. Also, if generating | |
3699 | relocatable output, count the relocs. */ | |
3700 | trsize = 0; | |
3701 | drsize = 0; | |
3702 | max_contents_size = 0; | |
3703 | max_relocs_size = 0; | |
3704 | max_sym_count = 0; | |
c72f2fb2 | 3705 | for (sub = info->input_bfds; sub != NULL; sub = sub->link.next) |
e135f41b | 3706 | { |
116c20d2 NC |
3707 | size_t sz; |
3708 | ||
0e1862bb | 3709 | if (bfd_link_relocatable (info)) |
e135f41b | 3710 | { |
116c20d2 NC |
3711 | if (bfd_get_flavour (sub) == bfd_target_aout_flavour) |
3712 | { | |
3713 | trsize += exec_hdr (sub)->a_trsize; | |
3714 | drsize += exec_hdr (sub)->a_drsize; | |
3715 | } | |
3716 | else | |
3717 | { | |
3718 | /* FIXME: We need to identify the .text and .data sections | |
3719 | and call get_reloc_upper_bound and canonicalize_reloc to | |
3720 | work out the number of relocs needed, and then multiply | |
3721 | by the reloc size. */ | |
4eca0228 | 3722 | _bfd_error_handler |
695344c0 | 3723 | /* xgettext:c-format */ |
871b3ab2 | 3724 | (_("%pB: relocatable link from %s to %s not supported"), |
dae82561 | 3725 | abfd, sub->xvec->name, abfd->xvec->name); |
116c20d2 NC |
3726 | bfd_set_error (bfd_error_invalid_operation); |
3727 | goto error_return; | |
3728 | } | |
e135f41b | 3729 | } |
e135f41b | 3730 | |
116c20d2 NC |
3731 | if (bfd_get_flavour (sub) == bfd_target_aout_flavour) |
3732 | { | |
3733 | sz = obj_textsec (sub)->size; | |
3734 | if (sz > max_contents_size) | |
3735 | max_contents_size = sz; | |
3736 | sz = obj_datasec (sub)->size; | |
3737 | if (sz > max_contents_size) | |
3738 | max_contents_size = sz; | |
e135f41b | 3739 | |
116c20d2 NC |
3740 | sz = exec_hdr (sub)->a_trsize; |
3741 | if (sz > max_relocs_size) | |
3742 | max_relocs_size = sz; | |
3743 | sz = exec_hdr (sub)->a_drsize; | |
3744 | if (sz > max_relocs_size) | |
3745 | max_relocs_size = sz; | |
e135f41b | 3746 | |
116c20d2 NC |
3747 | sz = obj_aout_external_sym_count (sub); |
3748 | if (sz > max_sym_count) | |
3749 | max_sym_count = sz; | |
3750 | } | |
e135f41b NC |
3751 | } |
3752 | ||
0e1862bb | 3753 | if (bfd_link_relocatable (info)) |
e135f41b | 3754 | { |
116c20d2 NC |
3755 | if (obj_textsec (abfd) != NULL) |
3756 | trsize += (_bfd_count_link_order_relocs (obj_textsec (abfd) | |
8423293d | 3757 | ->map_head.link_order) |
116c20d2 NC |
3758 | * obj_reloc_entry_size (abfd)); |
3759 | if (obj_datasec (abfd) != NULL) | |
3760 | drsize += (_bfd_count_link_order_relocs (obj_datasec (abfd) | |
8423293d | 3761 | ->map_head.link_order) |
116c20d2 | 3762 | * obj_reloc_entry_size (abfd)); |
e135f41b | 3763 | } |
e135f41b | 3764 | |
116c20d2 NC |
3765 | exec_hdr (abfd)->a_trsize = trsize; |
3766 | exec_hdr (abfd)->a_drsize = drsize; | |
3767 | exec_hdr (abfd)->a_entry = bfd_get_start_address (abfd); | |
3768 | ||
3769 | /* Adjust the section sizes and vmas according to the magic number. | |
3770 | This sets a_text, a_data and a_bss in the exec_hdr and sets the | |
3771 | filepos for each section. */ | |
3a8c4a5b | 3772 | if (! NAME (aout, adjust_sizes_and_vmas) (abfd)) |
116c20d2 NC |
3773 | goto error_return; |
3774 | ||
3775 | /* The relocation and symbol file positions differ among a.out | |
3776 | targets. We are passed a callback routine from the backend | |
3777 | specific code to handle this. | |
3778 | FIXME: At this point we do not know how much space the symbol | |
3779 | table will require. This will not work for any (nonstandard) | |
3780 | a.out target that needs to know the symbol table size before it | |
dc12032b | 3781 | can compute the relocation file positions. */ |
116c20d2 NC |
3782 | (*callback) (abfd, &aout_info.treloff, &aout_info.dreloff, |
3783 | &aout_info.symoff); | |
3784 | obj_textsec (abfd)->rel_filepos = aout_info.treloff; | |
3785 | obj_datasec (abfd)->rel_filepos = aout_info.dreloff; | |
3786 | obj_sym_filepos (abfd) = aout_info.symoff; | |
3787 | ||
3788 | /* We keep a count of the symbols as we output them. */ | |
3789 | obj_aout_external_sym_count (abfd) = 0; | |
3790 | ||
3791 | /* We accumulate the string table as we write out the symbols. */ | |
3792 | aout_info.strtab = _bfd_stringtab_init (); | |
3793 | if (aout_info.strtab == NULL) | |
3794 | goto error_return; | |
3795 | ||
3796 | /* Allocate buffers to hold section contents and relocs. */ | |
3797 | aout_info.contents = bfd_malloc (max_contents_size); | |
3798 | aout_info.relocs = bfd_malloc (max_relocs_size); | |
3799 | aout_info.symbol_map = bfd_malloc (max_sym_count * sizeof (int *)); | |
3800 | aout_info.output_syms = bfd_malloc ((max_sym_count + 1) | |
3801 | * sizeof (struct external_nlist)); | |
3802 | if ((aout_info.contents == NULL && max_contents_size != 0) | |
3803 | || (aout_info.relocs == NULL && max_relocs_size != 0) | |
3804 | || (aout_info.symbol_map == NULL && max_sym_count != 0) | |
3805 | || aout_info.output_syms == NULL) | |
3806 | goto error_return; | |
3807 | ||
3808 | /* If we have a symbol named __DYNAMIC, force it out now. This is | |
3809 | required by SunOS. Doing this here rather than in sunos.c is a | |
3810 | hack, but it's easier than exporting everything which would be | |
3811 | needed. */ | |
3812 | { | |
3813 | struct aout_link_hash_entry *h; | |
3814 | ||
3815 | h = aout_link_hash_lookup (aout_hash_table (info), "__DYNAMIC", | |
3816 | FALSE, FALSE, FALSE); | |
3817 | if (h != NULL) | |
7686d77d | 3818 | aout_link_write_other_symbol (&h->root.root, &aout_info); |
116c20d2 NC |
3819 | } |
3820 | ||
3821 | /* The most time efficient way to do the link would be to read all | |
3822 | the input object files into memory and then sort out the | |
3823 | information into the output file. Unfortunately, that will | |
3824 | probably use too much memory. Another method would be to step | |
3825 | through everything that composes the text section and write it | |
3826 | out, and then everything that composes the data section and write | |
3827 | it out, and then write out the relocs, and then write out the | |
3828 | symbols. Unfortunately, that requires reading stuff from each | |
3829 | input file several times, and we will not be able to keep all the | |
3830 | input files open simultaneously, and reopening them will be slow. | |
3831 | ||
3832 | What we do is basically process one input file at a time. We do | |
3833 | everything we need to do with an input file once--copy over the | |
3834 | section contents, handle the relocation information, and write | |
3835 | out the symbols--and then we throw away the information we read | |
3836 | from it. This approach requires a lot of lseeks of the output | |
3837 | file, which is unfortunate but still faster than reopening a lot | |
3838 | of files. | |
3839 | ||
3840 | We use the output_has_begun field of the input BFDs to see | |
3841 | whether we have already handled it. */ | |
c72f2fb2 | 3842 | for (sub = info->input_bfds; sub != NULL; sub = sub->link.next) |
116c20d2 NC |
3843 | sub->output_has_begun = FALSE; |
3844 | ||
3845 | /* Mark all sections which are to be included in the link. This | |
3846 | will normally be every section. We need to do this so that we | |
3847 | can identify any sections which the linker has decided to not | |
3848 | include. */ | |
3849 | for (o = abfd->sections; o != NULL; o = o->next) | |
e135f41b | 3850 | { |
8423293d | 3851 | for (p = o->map_head.link_order; p != NULL; p = p->next) |
116c20d2 NC |
3852 | if (p->type == bfd_indirect_link_order) |
3853 | p->u.indirect.section->linker_mark = TRUE; | |
e135f41b NC |
3854 | } |
3855 | ||
116c20d2 NC |
3856 | have_link_order_relocs = FALSE; |
3857 | for (o = abfd->sections; o != NULL; o = o->next) | |
3858 | { | |
8423293d | 3859 | for (p = o->map_head.link_order; |
116c20d2 NC |
3860 | p != NULL; |
3861 | p = p->next) | |
3862 | { | |
3863 | if (p->type == bfd_indirect_link_order | |
3864 | && (bfd_get_flavour (p->u.indirect.section->owner) | |
3865 | == bfd_target_aout_flavour)) | |
3866 | { | |
3867 | bfd *input_bfd; | |
e135f41b | 3868 | |
116c20d2 NC |
3869 | input_bfd = p->u.indirect.section->owner; |
3870 | if (! input_bfd->output_has_begun) | |
3871 | { | |
3872 | if (! aout_link_input_bfd (&aout_info, input_bfd)) | |
3873 | goto error_return; | |
3874 | input_bfd->output_has_begun = TRUE; | |
3875 | } | |
3876 | } | |
3877 | else if (p->type == bfd_section_reloc_link_order | |
3878 | || p->type == bfd_symbol_reloc_link_order) | |
3879 | /* These are handled below. */ | |
3880 | have_link_order_relocs = TRUE; | |
3881 | else | |
3882 | { | |
3883 | if (! _bfd_default_link_order (abfd, info, o, p)) | |
3884 | goto error_return; | |
3885 | } | |
3886 | } | |
3887 | } | |
e135f41b | 3888 | |
116c20d2 | 3889 | /* Write out any symbols that we have not already written out. */ |
7686d77d AM |
3890 | bfd_hash_traverse (&info->hash->table, |
3891 | aout_link_write_other_symbol, | |
3892 | &aout_info); | |
e135f41b | 3893 | |
116c20d2 NC |
3894 | /* Now handle any relocs we were asked to create by the linker. |
3895 | These did not come from any input file. We must do these after | |
3896 | we have written out all the symbols, so that we know the symbol | |
3897 | indices to use. */ | |
3898 | if (have_link_order_relocs) | |
e135f41b | 3899 | { |
116c20d2 | 3900 | for (o = abfd->sections; o != NULL; o = o->next) |
e135f41b | 3901 | { |
8423293d | 3902 | for (p = o->map_head.link_order; |
116c20d2 NC |
3903 | p != NULL; |
3904 | p = p->next) | |
3905 | { | |
3906 | if (p->type == bfd_section_reloc_link_order | |
3907 | || p->type == bfd_symbol_reloc_link_order) | |
3908 | { | |
3909 | if (! aout_link_reloc_link_order (&aout_info, o, p)) | |
3910 | goto error_return; | |
3911 | } | |
3912 | } | |
e135f41b NC |
3913 | } |
3914 | } | |
3915 | ||
c9594989 AM |
3916 | free (aout_info.contents); |
3917 | aout_info.contents = NULL; | |
3918 | free (aout_info.relocs); | |
3919 | aout_info.relocs = NULL; | |
3920 | free (aout_info.symbol_map); | |
3921 | aout_info.symbol_map = NULL; | |
3922 | free (aout_info.output_syms); | |
3923 | aout_info.output_syms = NULL; | |
116c20d2 NC |
3924 | if (includes_hash_initialized) |
3925 | { | |
3926 | bfd_hash_table_free (&aout_info.includes.root); | |
3927 | includes_hash_initialized = FALSE; | |
3928 | } | |
e135f41b | 3929 | |
116c20d2 NC |
3930 | /* Finish up any dynamic linking we may be doing. */ |
3931 | if (aout_backend_info (abfd)->finish_dynamic_link != NULL) | |
3932 | { | |
3933 | if (! (*aout_backend_info (abfd)->finish_dynamic_link) (abfd, info)) | |
3934 | goto error_return; | |
3935 | } | |
e135f41b | 3936 | |
116c20d2 NC |
3937 | /* Update the header information. */ |
3938 | abfd->symcount = obj_aout_external_sym_count (abfd); | |
3939 | exec_hdr (abfd)->a_syms = abfd->symcount * EXTERNAL_NLIST_SIZE; | |
3940 | obj_str_filepos (abfd) = obj_sym_filepos (abfd) + exec_hdr (abfd)->a_syms; | |
3941 | obj_textsec (abfd)->reloc_count = | |
3942 | exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd); | |
3943 | obj_datasec (abfd)->reloc_count = | |
3944 | exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd); | |
3945 | ||
3946 | /* Write out the string table, unless there are no symbols. */ | |
3947 | if (abfd->symcount > 0) | |
e135f41b | 3948 | { |
116c20d2 NC |
3949 | if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0 |
3950 | || ! emit_stringtab (abfd, aout_info.strtab)) | |
3951 | goto error_return; | |
3952 | } | |
3953 | else if (obj_textsec (abfd)->reloc_count == 0 | |
3954 | && obj_datasec (abfd)->reloc_count == 0) | |
3955 | { | |
dda2980f AM |
3956 | /* The layout of a typical a.out file is header, text, data, |
3957 | relocs, symbols, string table. When there are no relocs, | |
3958 | symbols or string table, the last thing in the file is data | |
3959 | and a_data may be rounded up. However we may have a smaller | |
3960 | sized .data section and thus not written final padding. The | |
3961 | same thing can happen with text if there is no data. Write | |
3962 | final padding here to extend the file. */ | |
3963 | file_ptr pos = 0; | |
3964 | ||
3965 | if (exec_hdr (abfd)->a_data > obj_datasec (abfd)->size) | |
3966 | pos = obj_datasec (abfd)->filepos + exec_hdr (abfd)->a_data; | |
3967 | else if (obj_datasec (abfd)->size == 0 | |
3968 | && exec_hdr (abfd)->a_text > obj_textsec (abfd)->size) | |
3969 | pos = obj_textsec (abfd)->filepos + exec_hdr (abfd)->a_text; | |
3970 | if (pos != 0) | |
3971 | { | |
3972 | bfd_byte b = 0; | |
e135f41b | 3973 | |
dda2980f AM |
3974 | if (bfd_seek (abfd, pos - 1, SEEK_SET) != 0 |
3975 | || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1) | |
3976 | goto error_return; | |
3977 | } | |
e135f41b NC |
3978 | } |
3979 | ||
b34976b6 | 3980 | return TRUE; |
e135f41b | 3981 | |
116c20d2 | 3982 | error_return: |
c9594989 AM |
3983 | free (aout_info.contents); |
3984 | free (aout_info.relocs); | |
3985 | free (aout_info.symbol_map); | |
3986 | free (aout_info.output_syms); | |
116c20d2 NC |
3987 | if (includes_hash_initialized) |
3988 | bfd_hash_table_free (&aout_info.includes.root); | |
3989 | return FALSE; | |
e135f41b NC |
3990 | } |
3991 | ||
116c20d2 NC |
3992 | /* Adjust and write out the symbols for an a.out file. Set the new |
3993 | symbol indices into a symbol_map. */ | |
3994 | ||
b34976b6 | 3995 | static bfd_boolean |
57402f1e | 3996 | aout_link_write_symbols (struct aout_final_link_info *flaginfo, bfd *input_bfd) |
e135f41b | 3997 | { |
e135f41b | 3998 | bfd *output_bfd; |
116c20d2 | 3999 | bfd_size_type sym_count; |
e135f41b | 4000 | char *strings; |
116c20d2 NC |
4001 | enum bfd_link_strip strip; |
4002 | enum bfd_link_discard discard; | |
4003 | struct external_nlist *outsym; | |
4004 | bfd_size_type strtab_index; | |
4005 | struct external_nlist *sym; | |
4006 | struct external_nlist *sym_end; | |
4007 | struct aout_link_hash_entry **sym_hash; | |
e135f41b | 4008 | int *symbol_map; |
116c20d2 NC |
4009 | bfd_boolean pass; |
4010 | bfd_boolean skip_next; | |
e135f41b | 4011 | |
57402f1e | 4012 | output_bfd = flaginfo->output_bfd; |
116c20d2 | 4013 | sym_count = obj_aout_external_sym_count (input_bfd); |
e135f41b | 4014 | strings = obj_aout_external_strings (input_bfd); |
57402f1e NC |
4015 | strip = flaginfo->info->strip; |
4016 | discard = flaginfo->info->discard; | |
4017 | outsym = flaginfo->output_syms; | |
e135f41b | 4018 | |
116c20d2 NC |
4019 | /* First write out a symbol for this object file, unless we are |
4020 | discarding such symbols. */ | |
4021 | if (strip != strip_all | |
4022 | && (strip != strip_some | |
765cf5f6 AM |
4023 | || bfd_hash_lookup (flaginfo->info->keep_hash, |
4024 | bfd_get_filename (input_bfd), | |
116c20d2 NC |
4025 | FALSE, FALSE) != NULL) |
4026 | && discard != discard_all) | |
4027 | { | |
4028 | H_PUT_8 (output_bfd, N_TEXT, outsym->e_type); | |
57402f1e | 4029 | strtab_index = add_to_stringtab (output_bfd, flaginfo->strtab, |
765cf5f6 | 4030 | bfd_get_filename (input_bfd), FALSE); |
116c20d2 NC |
4031 | if (strtab_index == (bfd_size_type) -1) |
4032 | return FALSE; | |
4033 | PUT_WORD (output_bfd, strtab_index, outsym->e_strx); | |
4034 | PUT_WORD (output_bfd, | |
fd361982 | 4035 | (bfd_section_vma (obj_textsec (input_bfd)->output_section) |
116c20d2 NC |
4036 | + obj_textsec (input_bfd)->output_offset), |
4037 | outsym->e_value); | |
4038 | ++obj_aout_external_sym_count (output_bfd); | |
4039 | ++outsym; | |
4040 | } | |
4041 | ||
4042 | pass = FALSE; | |
4043 | skip_next = FALSE; | |
4044 | sym = obj_aout_external_syms (input_bfd); | |
4045 | sym_end = sym + sym_count; | |
4046 | sym_hash = obj_aout_sym_hashes (input_bfd); | |
57402f1e | 4047 | symbol_map = flaginfo->symbol_map; |
116c20d2 NC |
4048 | memset (symbol_map, 0, (size_t) sym_count * sizeof *symbol_map); |
4049 | for (; sym < sym_end; sym++, sym_hash++, symbol_map++) | |
e135f41b | 4050 | { |
116c20d2 NC |
4051 | const char *name; |
4052 | int type; | |
4053 | struct aout_link_hash_entry *h; | |
4054 | bfd_boolean skip; | |
4055 | asection *symsec; | |
4056 | bfd_vma val = 0; | |
4057 | bfd_boolean copy; | |
e135f41b | 4058 | |
116c20d2 | 4059 | /* We set *symbol_map to 0 above for all symbols. If it has |
07d6d2b8 AM |
4060 | already been set to -1 for this symbol, it means that we are |
4061 | discarding it because it appears in a duplicate header file. | |
4062 | See the N_BINCL code below. */ | |
116c20d2 | 4063 | if (*symbol_map == -1) |
e135f41b NC |
4064 | continue; |
4065 | ||
116c20d2 | 4066 | /* Initialize *symbol_map to -1, which means that the symbol was |
07d6d2b8 AM |
4067 | not copied into the output file. We will change it later if |
4068 | we do copy the symbol over. */ | |
116c20d2 | 4069 | *symbol_map = -1; |
e135f41b | 4070 | |
116c20d2 NC |
4071 | type = H_GET_8 (input_bfd, sym->e_type); |
4072 | name = strings + GET_WORD (input_bfd, sym->e_strx); | |
e135f41b | 4073 | |
116c20d2 | 4074 | h = NULL; |
e135f41b | 4075 | |
116c20d2 | 4076 | if (pass) |
e135f41b | 4077 | { |
116c20d2 NC |
4078 | /* Pass this symbol through. It is the target of an |
4079 | indirect or warning symbol. */ | |
4080 | val = GET_WORD (input_bfd, sym->e_value); | |
4081 | pass = FALSE; | |
4082 | } | |
4083 | else if (skip_next) | |
4084 | { | |
4085 | /* Skip this symbol, which is the target of an indirect | |
4086 | symbol that we have changed to no longer be an indirect | |
4087 | symbol. */ | |
4088 | skip_next = FALSE; | |
4089 | continue; | |
4090 | } | |
4091 | else | |
4092 | { | |
4093 | struct aout_link_hash_entry *hresolve; | |
e135f41b | 4094 | |
116c20d2 NC |
4095 | /* We have saved the hash table entry for this symbol, if |
4096 | there is one. Note that we could just look it up again | |
4097 | in the hash table, provided we first check that it is an | |
4098 | external symbol. */ | |
4099 | h = *sym_hash; | |
e135f41b | 4100 | |
116c20d2 | 4101 | /* Use the name from the hash table, in case the symbol was |
07d6d2b8 | 4102 | wrapped. */ |
116c20d2 NC |
4103 | if (h != NULL) |
4104 | name = h->root.root.string; | |
e135f41b | 4105 | |
116c20d2 NC |
4106 | /* If this is an indirect or warning symbol, then change |
4107 | hresolve to the base symbol. We also change *sym_hash so | |
4108 | that the relocation routines relocate against the real | |
4109 | symbol. */ | |
4110 | hresolve = h; | |
4111 | if (h != NULL | |
4112 | && (h->root.type == bfd_link_hash_indirect | |
4113 | || h->root.type == bfd_link_hash_warning)) | |
4114 | { | |
4115 | hresolve = (struct aout_link_hash_entry *) h->root.u.i.link; | |
4116 | while (hresolve->root.type == bfd_link_hash_indirect | |
4117 | || hresolve->root.type == bfd_link_hash_warning) | |
4118 | hresolve = ((struct aout_link_hash_entry *) | |
4119 | hresolve->root.u.i.link); | |
4120 | *sym_hash = hresolve; | |
4121 | } | |
e135f41b | 4122 | |
116c20d2 NC |
4123 | /* If the symbol has already been written out, skip it. */ |
4124 | if (h != NULL | |
4125 | && h->root.type != bfd_link_hash_warning | |
4126 | && h->written) | |
4127 | { | |
4128 | if ((type & N_TYPE) == N_INDR | |
4129 | || type == N_WARNING) | |
4130 | skip_next = TRUE; | |
4131 | *symbol_map = h->indx; | |
4132 | continue; | |
4133 | } | |
e135f41b | 4134 | |
116c20d2 NC |
4135 | /* See if we are stripping this symbol. */ |
4136 | skip = FALSE; | |
4137 | switch (strip) | |
4138 | { | |
4139 | case strip_none: | |
4140 | break; | |
4141 | case strip_debugger: | |
4142 | if ((type & N_STAB) != 0) | |
4143 | skip = TRUE; | |
4144 | break; | |
4145 | case strip_some: | |
57402f1e | 4146 | if (bfd_hash_lookup (flaginfo->info->keep_hash, name, FALSE, FALSE) |
116c20d2 NC |
4147 | == NULL) |
4148 | skip = TRUE; | |
4149 | break; | |
4150 | case strip_all: | |
4151 | skip = TRUE; | |
4152 | break; | |
e135f41b | 4153 | } |
116c20d2 | 4154 | if (skip) |
e135f41b | 4155 | { |
116c20d2 NC |
4156 | if (h != NULL) |
4157 | h->written = TRUE; | |
4158 | continue; | |
4159 | } | |
e135f41b | 4160 | |
116c20d2 NC |
4161 | /* Get the value of the symbol. */ |
4162 | if ((type & N_TYPE) == N_TEXT | |
4163 | || type == N_WEAKT) | |
4164 | symsec = obj_textsec (input_bfd); | |
4165 | else if ((type & N_TYPE) == N_DATA | |
4166 | || type == N_WEAKD) | |
4167 | symsec = obj_datasec (input_bfd); | |
4168 | else if ((type & N_TYPE) == N_BSS | |
4169 | || type == N_WEAKB) | |
4170 | symsec = obj_bsssec (input_bfd); | |
4171 | else if ((type & N_TYPE) == N_ABS | |
4172 | || type == N_WEAKA) | |
4173 | symsec = bfd_abs_section_ptr; | |
4174 | else if (((type & N_TYPE) == N_INDR | |
4175 | && (hresolve == NULL | |
4176 | || (hresolve->root.type != bfd_link_hash_defined | |
4177 | && hresolve->root.type != bfd_link_hash_defweak | |
4178 | && hresolve->root.type != bfd_link_hash_common))) | |
4179 | || type == N_WARNING) | |
4180 | { | |
4181 | /* Pass the next symbol through unchanged. The | |
4182 | condition above for indirect symbols is so that if | |
4183 | the indirect symbol was defined, we output it with | |
4184 | the correct definition so the debugger will | |
4185 | understand it. */ | |
4186 | pass = TRUE; | |
4187 | val = GET_WORD (input_bfd, sym->e_value); | |
4188 | symsec = NULL; | |
4189 | } | |
4190 | else if ((type & N_STAB) != 0) | |
4191 | { | |
4192 | val = GET_WORD (input_bfd, sym->e_value); | |
4193 | symsec = NULL; | |
e135f41b | 4194 | } |
116c20d2 NC |
4195 | else |
4196 | { | |
4197 | /* If we get here with an indirect symbol, it means that | |
4198 | we are outputting it with a real definition. In such | |
4199 | a case we do not want to output the next symbol, | |
4200 | which is the target of the indirection. */ | |
4201 | if ((type & N_TYPE) == N_INDR) | |
4202 | skip_next = TRUE; | |
e135f41b | 4203 | |
116c20d2 | 4204 | symsec = NULL; |
e135f41b | 4205 | |
116c20d2 NC |
4206 | /* We need to get the value from the hash table. We use |
4207 | hresolve so that if we have defined an indirect | |
4208 | symbol we output the final definition. */ | |
4209 | if (h == NULL) | |
4210 | { | |
4211 | switch (type & N_TYPE) | |
4212 | { | |
4213 | case N_SETT: | |
4214 | symsec = obj_textsec (input_bfd); | |
4215 | break; | |
4216 | case N_SETD: | |
4217 | symsec = obj_datasec (input_bfd); | |
4218 | break; | |
4219 | case N_SETB: | |
4220 | symsec = obj_bsssec (input_bfd); | |
4221 | break; | |
4222 | case N_SETA: | |
4223 | symsec = bfd_abs_section_ptr; | |
4224 | break; | |
4225 | default: | |
4226 | val = 0; | |
4227 | break; | |
4228 | } | |
4229 | } | |
4230 | else if (hresolve->root.type == bfd_link_hash_defined | |
4231 | || hresolve->root.type == bfd_link_hash_defweak) | |
4232 | { | |
4233 | asection *input_section; | |
4234 | asection *output_section; | |
e135f41b | 4235 | |
116c20d2 NC |
4236 | /* This case usually means a common symbol which was |
4237 | turned into a defined symbol. */ | |
4238 | input_section = hresolve->root.u.def.section; | |
4239 | output_section = input_section->output_section; | |
4240 | BFD_ASSERT (bfd_is_abs_section (output_section) | |
4241 | || output_section->owner == output_bfd); | |
4242 | val = (hresolve->root.u.def.value | |
fd361982 | 4243 | + bfd_section_vma (output_section) |
116c20d2 | 4244 | + input_section->output_offset); |
e135f41b | 4245 | |
116c20d2 NC |
4246 | /* Get the correct type based on the section. If |
4247 | this is a constructed set, force it to be | |
4248 | globally visible. */ | |
4249 | if (type == N_SETT | |
4250 | || type == N_SETD | |
4251 | || type == N_SETB | |
4252 | || type == N_SETA) | |
4253 | type |= N_EXT; | |
e135f41b | 4254 | |
116c20d2 | 4255 | type &=~ N_TYPE; |
e135f41b | 4256 | |
116c20d2 NC |
4257 | if (output_section == obj_textsec (output_bfd)) |
4258 | type |= (hresolve->root.type == bfd_link_hash_defined | |
4259 | ? N_TEXT | |
4260 | : N_WEAKT); | |
4261 | else if (output_section == obj_datasec (output_bfd)) | |
4262 | type |= (hresolve->root.type == bfd_link_hash_defined | |
4263 | ? N_DATA | |
4264 | : N_WEAKD); | |
4265 | else if (output_section == obj_bsssec (output_bfd)) | |
4266 | type |= (hresolve->root.type == bfd_link_hash_defined | |
4267 | ? N_BSS | |
4268 | : N_WEAKB); | |
4269 | else | |
4270 | type |= (hresolve->root.type == bfd_link_hash_defined | |
4271 | ? N_ABS | |
4272 | : N_WEAKA); | |
e135f41b | 4273 | } |
116c20d2 NC |
4274 | else if (hresolve->root.type == bfd_link_hash_common) |
4275 | val = hresolve->root.u.c.size; | |
4276 | else if (hresolve->root.type == bfd_link_hash_undefweak) | |
e135f41b | 4277 | { |
116c20d2 NC |
4278 | val = 0; |
4279 | type = N_WEAKU; | |
e135f41b | 4280 | } |
116c20d2 NC |
4281 | else |
4282 | val = 0; | |
e135f41b | 4283 | } |
116c20d2 NC |
4284 | if (symsec != NULL) |
4285 | val = (symsec->output_section->vma | |
4286 | + symsec->output_offset | |
4287 | + (GET_WORD (input_bfd, sym->e_value) | |
4288 | - symsec->vma)); | |
e135f41b | 4289 | |
116c20d2 NC |
4290 | /* If this is a global symbol set the written flag, and if |
4291 | it is a local symbol see if we should discard it. */ | |
4292 | if (h != NULL) | |
e135f41b | 4293 | { |
116c20d2 NC |
4294 | h->written = TRUE; |
4295 | h->indx = obj_aout_external_sym_count (output_bfd); | |
e135f41b | 4296 | } |
116c20d2 NC |
4297 | else if ((type & N_TYPE) != N_SETT |
4298 | && (type & N_TYPE) != N_SETD | |
4299 | && (type & N_TYPE) != N_SETB | |
4300 | && (type & N_TYPE) != N_SETA) | |
e135f41b | 4301 | { |
116c20d2 NC |
4302 | switch (discard) |
4303 | { | |
4304 | case discard_none: | |
4305 | case discard_sec_merge: | |
4306 | break; | |
4307 | case discard_l: | |
4308 | if ((type & N_STAB) == 0 | |
4309 | && bfd_is_local_label_name (input_bfd, name)) | |
4310 | skip = TRUE; | |
4311 | break; | |
4312 | case discard_all: | |
4313 | skip = TRUE; | |
4314 | break; | |
4315 | } | |
4316 | if (skip) | |
4317 | { | |
4318 | pass = FALSE; | |
4319 | continue; | |
4320 | } | |
e135f41b NC |
4321 | } |
4322 | ||
116c20d2 NC |
4323 | /* An N_BINCL symbol indicates the start of the stabs |
4324 | entries for a header file. We need to scan ahead to the | |
4325 | next N_EINCL symbol, ignoring nesting, adding up all the | |
4326 | characters in the symbol names, not including the file | |
4327 | numbers in types (the first number after an open | |
4328 | parenthesis). */ | |
4329 | if (type == N_BINCL) | |
e135f41b | 4330 | { |
116c20d2 NC |
4331 | struct external_nlist *incl_sym; |
4332 | int nest; | |
4333 | struct aout_link_includes_entry *incl_entry; | |
4334 | struct aout_link_includes_totals *t; | |
e135f41b | 4335 | |
116c20d2 NC |
4336 | val = 0; |
4337 | nest = 0; | |
4338 | for (incl_sym = sym + 1; incl_sym < sym_end; incl_sym++) | |
4339 | { | |
4340 | int incl_type; | |
e135f41b | 4341 | |
116c20d2 NC |
4342 | incl_type = H_GET_8 (input_bfd, incl_sym->e_type); |
4343 | if (incl_type == N_EINCL) | |
4344 | { | |
4345 | if (nest == 0) | |
4346 | break; | |
4347 | --nest; | |
4348 | } | |
4349 | else if (incl_type == N_BINCL) | |
4350 | ++nest; | |
4351 | else if (nest == 0) | |
4352 | { | |
4353 | const char *s; | |
e135f41b | 4354 | |
116c20d2 NC |
4355 | s = strings + GET_WORD (input_bfd, incl_sym->e_strx); |
4356 | for (; *s != '\0'; s++) | |
4357 | { | |
4358 | val += *s; | |
4359 | if (*s == '(') | |
4360 | { | |
4361 | /* Skip the file number. */ | |
4362 | ++s; | |
4363 | while (ISDIGIT (*s)) | |
4364 | ++s; | |
4365 | --s; | |
4366 | } | |
4367 | } | |
4368 | } | |
4369 | } | |
e135f41b | 4370 | |
116c20d2 | 4371 | /* If we have already included a header file with the |
07d6d2b8 AM |
4372 | same value, then replace this one with an N_EXCL |
4373 | symbol. */ | |
57402f1e NC |
4374 | copy = ! flaginfo->info->keep_memory; |
4375 | incl_entry = aout_link_includes_lookup (&flaginfo->includes, | |
116c20d2 NC |
4376 | name, TRUE, copy); |
4377 | if (incl_entry == NULL) | |
4378 | return FALSE; | |
4379 | for (t = incl_entry->totals; t != NULL; t = t->next) | |
4380 | if (t->total == val) | |
4381 | break; | |
4382 | if (t == NULL) | |
4383 | { | |
4384 | /* This is the first time we have seen this header | |
07d6d2b8 | 4385 | file with this set of stabs strings. */ |
57402f1e | 4386 | t = bfd_hash_allocate (&flaginfo->includes.root, |
116c20d2 NC |
4387 | sizeof *t); |
4388 | if (t == NULL) | |
4389 | return FALSE; | |
4390 | t->total = val; | |
4391 | t->next = incl_entry->totals; | |
4392 | incl_entry->totals = t; | |
4393 | } | |
4394 | else | |
4395 | { | |
4396 | int *incl_map; | |
e135f41b | 4397 | |
116c20d2 | 4398 | /* This is a duplicate header file. We must change |
07d6d2b8 AM |
4399 | it to be an N_EXCL entry, and mark all the |
4400 | included symbols to prevent outputting them. */ | |
116c20d2 | 4401 | type = N_EXCL; |
e135f41b | 4402 | |
116c20d2 NC |
4403 | nest = 0; |
4404 | for (incl_sym = sym + 1, incl_map = symbol_map + 1; | |
4405 | incl_sym < sym_end; | |
4406 | incl_sym++, incl_map++) | |
4407 | { | |
4408 | int incl_type; | |
e135f41b | 4409 | |
116c20d2 NC |
4410 | incl_type = H_GET_8 (input_bfd, incl_sym->e_type); |
4411 | if (incl_type == N_EINCL) | |
4412 | { | |
4413 | if (nest == 0) | |
4414 | { | |
4415 | *incl_map = -1; | |
4416 | break; | |
4417 | } | |
4418 | --nest; | |
4419 | } | |
4420 | else if (incl_type == N_BINCL) | |
4421 | ++nest; | |
4422 | else if (nest == 0) | |
4423 | *incl_map = -1; | |
4424 | } | |
4425 | } | |
4426 | } | |
e135f41b | 4427 | } |
e135f41b | 4428 | |
116c20d2 NC |
4429 | /* Copy this symbol into the list of symbols we are going to |
4430 | write out. */ | |
4431 | H_PUT_8 (output_bfd, type, outsym->e_type); | |
4432 | copy = FALSE; | |
57402f1e | 4433 | if (! flaginfo->info->keep_memory) |
e135f41b | 4434 | { |
116c20d2 NC |
4435 | /* name points into a string table which we are going to |
4436 | free. If there is a hash table entry, use that string. | |
4437 | Otherwise, copy name into memory. */ | |
4438 | if (h != NULL) | |
4439 | name = h->root.root.string; | |
4440 | else | |
4441 | copy = TRUE; | |
e135f41b | 4442 | } |
57402f1e | 4443 | strtab_index = add_to_stringtab (output_bfd, flaginfo->strtab, |
116c20d2 NC |
4444 | name, copy); |
4445 | if (strtab_index == (bfd_size_type) -1) | |
4446 | return FALSE; | |
4447 | PUT_WORD (output_bfd, strtab_index, outsym->e_strx); | |
4448 | PUT_WORD (output_bfd, val, outsym->e_value); | |
4449 | *symbol_map = obj_aout_external_sym_count (output_bfd); | |
4450 | ++obj_aout_external_sym_count (output_bfd); | |
4451 | ++outsym; | |
e135f41b NC |
4452 | } |
4453 | ||
116c20d2 | 4454 | /* Write out the output symbols we have just constructed. */ |
57402f1e | 4455 | if (outsym > flaginfo->output_syms) |
e135f41b NC |
4456 | { |
4457 | bfd_size_type size; | |
e135f41b | 4458 | |
57402f1e | 4459 | if (bfd_seek (output_bfd, flaginfo->symoff, SEEK_SET) != 0) |
b34976b6 | 4460 | return FALSE; |
57402f1e | 4461 | size = outsym - flaginfo->output_syms; |
116c20d2 | 4462 | size *= EXTERNAL_NLIST_SIZE; |
57402f1e | 4463 | if (bfd_bwrite ((void *) flaginfo->output_syms, size, output_bfd) != size) |
b34976b6 | 4464 | return FALSE; |
57402f1e | 4465 | flaginfo->symoff += size; |
e135f41b NC |
4466 | } |
4467 | ||
b34976b6 | 4468 | return TRUE; |
e135f41b | 4469 | } |
116c20d2 NC |
4470 | |
4471 | /* Write out a symbol that was not associated with an a.out input | |
4472 | object. */ | |
e135f41b | 4473 | |
edeb6e24 AM |
4474 | static bfd_vma |
4475 | bfd_getp32 (const void *p) | |
e135f41b | 4476 | { |
edeb6e24 AM |
4477 | const bfd_byte *addr = p; |
4478 | unsigned long v; | |
116c20d2 | 4479 | |
edeb6e24 AM |
4480 | v = (unsigned long) addr[1] << 24; |
4481 | v |= (unsigned long) addr[0] << 16; | |
4482 | v |= (unsigned long) addr[3] << 8; | |
4483 | v |= (unsigned long) addr[2]; | |
4484 | return v; | |
e135f41b NC |
4485 | } |
4486 | ||
4487 | #define COERCE32(x) (((bfd_signed_vma) (x) ^ 0x80000000) - 0x80000000) | |
4488 | ||
edeb6e24 AM |
4489 | static bfd_signed_vma |
4490 | bfd_getp_signed_32 (const void *p) | |
e135f41b | 4491 | { |
edeb6e24 AM |
4492 | const bfd_byte *addr = p; |
4493 | unsigned long v; | |
116c20d2 | 4494 | |
edeb6e24 AM |
4495 | v = (unsigned long) addr[1] << 24; |
4496 | v |= (unsigned long) addr[0] << 16; | |
4497 | v |= (unsigned long) addr[3] << 8; | |
4498 | v |= (unsigned long) addr[2]; | |
4499 | return COERCE32 (v); | |
e135f41b NC |
4500 | } |
4501 | ||
edeb6e24 AM |
4502 | static void |
4503 | bfd_putp32 (bfd_vma data, void *p) | |
e135f41b | 4504 | { |
edeb6e24 | 4505 | bfd_byte *addr = p; |
116c20d2 | 4506 | |
edeb6e24 AM |
4507 | addr[0] = (data >> 16) & 0xff; |
4508 | addr[1] = (data >> 24) & 0xff; | |
4509 | addr[2] = (data >> 0) & 0xff; | |
4510 | addr[3] = (data >> 8) & 0xff; | |
e135f41b | 4511 | } |
116c20d2 NC |
4512 | |
4513 | const bfd_target MY (vec) = | |
4514 | { | |
4515 | TARGETNAME, /* Name. */ | |
4516 | bfd_target_aout_flavour, | |
4517 | BFD_ENDIAN_LITTLE, /* Target byte order (little). */ | |
4518 | BFD_ENDIAN_LITTLE, /* Target headers byte order (little). */ | |
4519 | (HAS_RELOC | EXEC_P | /* Object flags. */ | |
4520 | HAS_LINENO | HAS_DEBUG | | |
4521 | HAS_SYMS | HAS_LOCALS | WP_TEXT), | |
4522 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA), | |
4523 | MY_symbol_leading_char, | |
4524 | AR_PAD_CHAR, /* AR_pad_char. */ | |
4525 | 15, /* AR_max_namelen. */ | |
0aabe54e | 4526 | 0, /* match priority. */ |
116c20d2 NC |
4527 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, |
4528 | bfd_getp32, bfd_getp_signed_32, bfd_putp32, | |
4529 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Data. */ | |
4530 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, | |
4531 | bfd_getp32, bfd_getp_signed_32, bfd_putp32, | |
4532 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Headers. */ | |
d00dd7dc AM |
4533 | { /* bfd_check_format. */ |
4534 | _bfd_dummy_target, | |
4535 | MY_object_p, | |
4536 | bfd_generic_archive_p, | |
4537 | MY_core_file_p | |
4538 | }, | |
4539 | { /* bfd_set_format. */ | |
4540 | _bfd_bool_bfd_false_error, | |
4541 | MY_mkobject, | |
4542 | _bfd_generic_mkarchive, | |
4543 | _bfd_bool_bfd_false_error | |
4544 | }, | |
4545 | { /* bfd_write_contents. */ | |
4546 | _bfd_bool_bfd_false_error, | |
4547 | MY_write_object_contents, | |
4548 | _bfd_write_archive_contents, | |
4549 | _bfd_bool_bfd_false_error | |
4550 | }, | |
4551 | ||
4552 | BFD_JUMP_TABLE_GENERIC (MY), | |
4553 | BFD_JUMP_TABLE_COPY (MY), | |
4554 | BFD_JUMP_TABLE_CORE (MY), | |
4555 | BFD_JUMP_TABLE_ARCHIVE (MY), | |
4556 | BFD_JUMP_TABLE_SYMBOLS (MY), | |
4557 | BFD_JUMP_TABLE_RELOCS (MY), | |
4558 | BFD_JUMP_TABLE_WRITE (MY), | |
4559 | BFD_JUMP_TABLE_LINK (MY), | |
4560 | BFD_JUMP_TABLE_DYNAMIC (MY), | |
116c20d2 NC |
4561 | |
4562 | /* Alternative_target. */ | |
4563 | NULL, | |
4564 | ||
4565 | (void *) MY_backend_data | |
4566 | }; |