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 | |
116c20d2 NC |
163 | #define N_TYPE 0x1f /* Type mask. */ |
164 | #define N_UNDF 0x00 /* Undefined. */ | |
165 | #define N_ABS 0x01 /* Absolute. */ | |
166 | #define N_TEXT 0x02 /* Text segment. */ | |
167 | #define N_DATA 0x03 /* Data segment. */ | |
168 | #define N_BSS 0x04 /* Bss segment. */ | |
169 | #define N_REG 0x14 /* Register symbol. */ | |
170 | #define N_FN 0x1f /* File name. */ | |
171 | #define N_EXT 0x20 /* External flag. */ | |
e135f41b NC |
172 | |
173 | #define RELOC_SIZE 2 | |
174 | ||
116c20d2 NC |
175 | #define RELFLG 0x0001 /* PC-relative flag. */ |
176 | #define RTYPE 0x000e /* Type mask. */ | |
177 | #define RIDXMASK 0xfff0 /* Index mask. */ | |
e135f41b | 178 | |
116c20d2 NC |
179 | #define RABS 0x00 /* Absolute. */ |
180 | #define RTEXT 0x02 /* Text. */ | |
181 | #define RDATA 0x04 /* Data. */ | |
182 | #define RBSS 0x06 /* Bss. */ | |
183 | #define REXT 0x08 /* External. */ | |
e135f41b NC |
184 | |
185 | #define RINDEX(x) (((x) & 0xfff0) >> 4) | |
186 | ||
e135f41b NC |
187 | #ifndef MY_final_link_relocate |
188 | #define MY_final_link_relocate _bfd_final_link_relocate | |
189 | #endif | |
190 | ||
191 | #ifndef MY_relocate_contents | |
192 | #define MY_relocate_contents _bfd_relocate_contents | |
193 | #endif | |
194 | ||
116c20d2 NC |
195 | /* A hash table used for header files with N_BINCL entries. */ |
196 | ||
197 | struct aout_link_includes_table | |
198 | { | |
199 | struct bfd_hash_table root; | |
200 | }; | |
201 | ||
202 | /* A linked list of totals that we have found for a particular header | |
203 | file. */ | |
204 | ||
205 | struct aout_link_includes_totals | |
206 | { | |
207 | struct aout_link_includes_totals *next; | |
208 | bfd_vma total; | |
209 | }; | |
210 | ||
211 | /* An entry in the header file hash table. */ | |
212 | ||
213 | struct aout_link_includes_entry | |
214 | { | |
215 | struct bfd_hash_entry root; | |
216 | /* List of totals we have found for this file. */ | |
217 | struct aout_link_includes_totals *totals; | |
218 | }; | |
219 | ||
220 | /* During the final link step we need to pass around a bunch of | |
221 | information, so we do it in an instance of this structure. */ | |
222 | ||
223 | struct aout_final_link_info | |
224 | { | |
225 | /* General link information. */ | |
226 | struct bfd_link_info *info; | |
227 | /* Output bfd. */ | |
228 | bfd *output_bfd; | |
229 | /* Reloc file positions. */ | |
230 | file_ptr treloff, dreloff; | |
231 | /* File position of symbols. */ | |
232 | file_ptr symoff; | |
233 | /* String table. */ | |
234 | struct bfd_strtab_hash *strtab; | |
235 | /* Header file hash table. */ | |
236 | struct aout_link_includes_table includes; | |
237 | /* A buffer large enough to hold the contents of any section. */ | |
238 | bfd_byte *contents; | |
239 | /* A buffer large enough to hold the relocs of any section. */ | |
240 | void * relocs; | |
241 | /* A buffer large enough to hold the symbol map of any input BFD. */ | |
242 | int *symbol_map; | |
243 | /* A buffer large enough to hold output symbols of any input BFD. */ | |
244 | struct external_nlist *output_syms; | |
245 | }; | |
246 | ||
fa1477dc SC |
247 | /* Copy of the link_info.separate_code boolean to select the output format with |
248 | separate instruction and data spaces selected by --imagic */ | |
249 | static bfd_boolean separate_i_d = FALSE; | |
250 | ||
e135f41b NC |
251 | reloc_howto_type howto_table_pdp11[] = |
252 | { | |
07d6d2b8 | 253 | /* type rs size bsz pcrel bitpos ovrf sf name part_inpl readmask setmask pcdone */ |
b34976b6 AM |
254 | HOWTO( 0, 0, 1, 16, FALSE, 0, complain_overflow_signed,0,"16", TRUE, 0x0000ffff,0x0000ffff, FALSE), |
255 | HOWTO( 1, 0, 1, 16, TRUE, 0, complain_overflow_signed,0,"DISP16", TRUE, 0x0000ffff,0x0000ffff, FALSE), | |
e135f41b NC |
256 | }; |
257 | ||
258 | #define TABLE_SIZE(TABLE) (sizeof(TABLE)/sizeof(TABLE[0])) | |
259 | ||
116c20d2 | 260 | |
13e570f8 | 261 | static bfd_boolean aout_link_check_archive_element (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, const char *, bfd_boolean *); |
07d6d2b8 AM |
262 | static bfd_boolean aout_link_add_object_symbols (bfd *, struct bfd_link_info *); |
263 | static bfd_boolean aout_link_add_symbols (bfd *, struct bfd_link_info *); | |
264 | static bfd_boolean aout_link_write_symbols (struct aout_final_link_info *, bfd *); | |
116c20d2 NC |
265 | |
266 | ||
e135f41b | 267 | reloc_howto_type * |
116c20d2 NC |
268 | NAME (aout, reloc_type_lookup) (bfd * abfd ATTRIBUTE_UNUSED, |
269 | bfd_reloc_code_real_type code) | |
e135f41b NC |
270 | { |
271 | switch (code) | |
272 | { | |
273 | case BFD_RELOC_16: | |
274 | return &howto_table_pdp11[0]; | |
275 | case BFD_RELOC_16_PCREL: | |
276 | return &howto_table_pdp11[1]; | |
277 | default: | |
116c20d2 | 278 | return NULL; |
e135f41b NC |
279 | } |
280 | } | |
281 | ||
157090f7 AM |
282 | reloc_howto_type * |
283 | NAME (aout, reloc_name_lookup) (bfd *abfd ATTRIBUTE_UNUSED, | |
284 | const char *r_name) | |
285 | { | |
286 | unsigned int i; | |
287 | ||
288 | for (i = 0; | |
289 | i < sizeof (howto_table_pdp11) / sizeof (howto_table_pdp11[0]); | |
290 | i++) | |
291 | if (howto_table_pdp11[i].name != NULL | |
292 | && strcasecmp (howto_table_pdp11[i].name, r_name) == 0) | |
293 | return &howto_table_pdp11[i]; | |
294 | ||
295 | return NULL; | |
296 | } | |
297 | ||
e135f41b | 298 | static int |
116c20d2 | 299 | pdp11_aout_write_headers (bfd *abfd, struct internal_exec *execp) |
e135f41b NC |
300 | { |
301 | struct external_exec exec_bytes; | |
e135f41b NC |
302 | |
303 | if (adata(abfd).magic == undecided_magic) | |
3a8c4a5b | 304 | NAME (aout, adjust_sizes_and_vmas) (abfd); |
e135f41b NC |
305 | |
306 | execp->a_syms = bfd_get_symcount (abfd) * EXTERNAL_NLIST_SIZE; | |
307 | execp->a_entry = bfd_get_start_address (abfd); | |
308 | ||
116c20d2 NC |
309 | if (obj_textsec (abfd)->reloc_count > 0 |
310 | || obj_datasec (abfd)->reloc_count > 0) | |
e135f41b NC |
311 | { |
312 | execp->a_trsize = execp->a_text; | |
313 | execp->a_drsize = execp->a_data; | |
314 | } | |
315 | else | |
316 | { | |
317 | execp->a_trsize = 0; | |
318 | execp->a_drsize = 0; | |
319 | } | |
320 | ||
116c20d2 | 321 | NAME (aout, swap_exec_header_out) (abfd, execp, & exec_bytes); |
e135f41b NC |
322 | |
323 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) | |
b34976b6 | 324 | return FALSE; |
e135f41b | 325 | |
116c20d2 | 326 | if (bfd_bwrite ((void *) &exec_bytes, (bfd_size_type) EXEC_BYTES_SIZE, abfd) |
e135f41b | 327 | != EXEC_BYTES_SIZE) |
b34976b6 | 328 | return FALSE; |
e135f41b | 329 | |
116c20d2 NC |
330 | /* Now write out reloc info, followed by syms and strings. */ |
331 | if (bfd_get_outsymbols (abfd) != NULL | |
e135f41b NC |
332 | && bfd_get_symcount (abfd) != 0) |
333 | { | |
bbb1afc8 | 334 | if (bfd_seek (abfd, (file_ptr) (N_SYMOFF (execp)), SEEK_SET) != 0) |
b34976b6 | 335 | return FALSE; |
e135f41b | 336 | |
116c20d2 | 337 | if (! NAME (aout, write_syms) (abfd)) |
b34976b6 | 338 | return FALSE; |
e135f41b NC |
339 | } |
340 | ||
116c20d2 NC |
341 | if (obj_textsec (abfd)->reloc_count > 0 |
342 | || obj_datasec (abfd)->reloc_count > 0) | |
e135f41b | 343 | { |
bbb1afc8 | 344 | if (bfd_seek (abfd, (file_ptr) (N_TRELOFF (execp)), SEEK_SET) != 0 |
116c20d2 | 345 | || !NAME (aout, squirt_out_relocs) (abfd, obj_textsec (abfd)) |
bbb1afc8 | 346 | || bfd_seek (abfd, (file_ptr) (N_DRELOFF (execp)), SEEK_SET) != 0 |
68ffbac6 | 347 | || !NAME (aout, squirt_out_relocs) (abfd, obj_datasec (abfd))) |
b34976b6 | 348 | return FALSE; |
e135f41b NC |
349 | } |
350 | ||
b34976b6 | 351 | return TRUE; |
dc810e39 | 352 | } |
e135f41b NC |
353 | |
354 | /* Write an object file. | |
355 | Section contents have already been written. We write the | |
356 | file header, symbols, and relocation. */ | |
357 | ||
b34976b6 | 358 | static bfd_boolean |
116c20d2 | 359 | MY(write_object_contents) (bfd *abfd) |
e135f41b NC |
360 | { |
361 | struct internal_exec *execp = exec_hdr (abfd); | |
362 | ||
363 | /* We must make certain that the magic number has been set. This | |
364 | will normally have been done by set_section_contents, but only if | |
365 | there actually are some section contents. */ | |
366 | if (! abfd->output_has_begun) | |
3a8c4a5b | 367 | NAME (aout, adjust_sizes_and_vmas) (abfd); |
e135f41b NC |
368 | |
369 | obj_reloc_entry_size (abfd) = RELOC_SIZE; | |
370 | ||
116c20d2 | 371 | return WRITE_HEADERS (abfd, execp); |
e135f41b NC |
372 | } |
373 | ||
116c20d2 NC |
374 | /* Swap the information in an executable header @var{raw_bytes} taken |
375 | from a raw byte stream memory image into the internal exec header | |
376 | structure "execp". */ | |
e135f41b NC |
377 | |
378 | #ifndef NAME_swap_exec_header_in | |
379 | void | |
116c20d2 NC |
380 | NAME (aout, swap_exec_header_in) (bfd *abfd, |
381 | struct external_exec *bytes, | |
382 | struct internal_exec *execp) | |
e135f41b | 383 | { |
e135f41b NC |
384 | /* The internal_exec structure has some fields that are unused in this |
385 | configuration (IE for i960), so ensure that all such uninitialized | |
386 | fields are zero'd out. There are places where two of these structs | |
116c20d2 NC |
387 | are memcmp'd, and thus the contents do matter. */ |
388 | memset ((void *) execp, 0, sizeof (struct internal_exec)); | |
e135f41b NC |
389 | /* Now fill in fields in the execp, from the bytes in the raw data. */ |
390 | execp->a_info = GET_MAGIC (abfd, bytes->e_info); | |
391 | execp->a_text = GET_WORD (abfd, bytes->e_text); | |
392 | execp->a_data = GET_WORD (abfd, bytes->e_data); | |
393 | execp->a_bss = GET_WORD (abfd, bytes->e_bss); | |
394 | execp->a_syms = GET_WORD (abfd, bytes->e_syms); | |
395 | execp->a_entry = GET_WORD (abfd, bytes->e_entry); | |
396 | ||
397 | if (GET_WORD (abfd, bytes->e_flag) & A_FLAG_RELOC_STRIPPED) | |
398 | { | |
399 | execp->a_trsize = 0; | |
400 | execp->a_drsize = 0; | |
401 | } | |
402 | else | |
403 | { | |
404 | execp->a_trsize = execp->a_text; | |
405 | execp->a_drsize = execp->a_data; | |
406 | } | |
407 | } | |
116c20d2 | 408 | #define NAME_swap_exec_header_in NAME (aout, swap_exec_header_in) |
e135f41b NC |
409 | #endif |
410 | ||
116c20d2 NC |
411 | /* Swap the information in an internal exec header structure |
412 | "execp" into the buffer "bytes" ready for writing to disk. */ | |
e135f41b | 413 | void |
116c20d2 NC |
414 | NAME (aout, swap_exec_header_out) (bfd *abfd, |
415 | struct internal_exec *execp, | |
416 | struct external_exec *bytes) | |
e135f41b | 417 | { |
116c20d2 | 418 | /* Now fill in fields in the raw data, from the fields in the exec struct. */ |
e135f41b NC |
419 | PUT_MAGIC (abfd, execp->a_info, bytes->e_info); |
420 | PUT_WORD (abfd, execp->a_text, bytes->e_text); | |
421 | PUT_WORD (abfd, execp->a_data, bytes->e_data); | |
422 | PUT_WORD (abfd, execp->a_bss, bytes->e_bss); | |
423 | PUT_WORD (abfd, execp->a_syms, bytes->e_syms); | |
424 | PUT_WORD (abfd, execp->a_entry, bytes->e_entry); | |
425 | PUT_WORD (abfd, 0, bytes->e_unused); | |
426 | ||
116c20d2 NC |
427 | if ((execp->a_trsize == 0 || execp->a_text == 0) |
428 | && (execp->a_drsize == 0 || execp->a_data == 0)) | |
429 | PUT_WORD (abfd, A_FLAG_RELOC_STRIPPED, bytes->e_flag); | |
430 | else if (execp->a_trsize == execp->a_text | |
431 | && execp->a_drsize == execp->a_data) | |
432 | PUT_WORD (abfd, 0, bytes->e_flag); | |
e135f41b NC |
433 | else |
434 | { | |
116c20d2 | 435 | /* TODO: print a proper warning message. */ |
e135f41b NC |
436 | fprintf (stderr, "BFD:%s:%d: internal error\n", __FILE__, __LINE__); |
437 | PUT_WORD (abfd, 0, bytes->e_flag); | |
438 | } | |
439 | } | |
440 | ||
441 | /* Make all the section for an a.out file. */ | |
442 | ||
b34976b6 | 443 | bfd_boolean |
116c20d2 | 444 | NAME (aout, make_sections) (bfd *abfd) |
e135f41b | 445 | { |
116c20d2 | 446 | if (obj_textsec (abfd) == NULL && bfd_make_section (abfd, ".text") == NULL) |
b34976b6 | 447 | return FALSE; |
116c20d2 | 448 | if (obj_datasec (abfd) == NULL && bfd_make_section (abfd, ".data") == NULL) |
b34976b6 | 449 | return FALSE; |
116c20d2 | 450 | if (obj_bsssec (abfd) == NULL && bfd_make_section (abfd, ".bss") == NULL) |
b34976b6 AM |
451 | return FALSE; |
452 | return TRUE; | |
e135f41b NC |
453 | } |
454 | ||
116c20d2 NC |
455 | /* Some a.out variant thinks that the file open in ABFD |
456 | checking is an a.out file. Do some more checking, and set up | |
457 | for access if it really is. Call back to the calling | |
458 | environment's "finish up" function just before returning, to | |
459 | handle any last-minute setup. */ | |
e135f41b | 460 | |
cb001c0d | 461 | bfd_cleanup |
116c20d2 NC |
462 | NAME (aout, some_aout_object_p) (bfd *abfd, |
463 | struct internal_exec *execp, | |
cb001c0d | 464 | bfd_cleanup (*callback_to_real_object_p) (bfd *)) |
e135f41b NC |
465 | { |
466 | struct aout_data_struct *rawptr, *oldrawptr; | |
cb001c0d | 467 | bfd_cleanup cleanup; |
986f0783 | 468 | size_t amt = sizeof (struct aout_data_struct); |
e135f41b | 469 | |
116c20d2 | 470 | rawptr = bfd_zalloc (abfd, amt); |
e135f41b NC |
471 | if (rawptr == NULL) |
472 | return 0; | |
473 | ||
474 | oldrawptr = abfd->tdata.aout_data; | |
475 | abfd->tdata.aout_data = rawptr; | |
476 | ||
dc12032b | 477 | /* Copy the contents of the old tdata struct. */ |
e135f41b NC |
478 | if (oldrawptr != NULL) |
479 | *abfd->tdata.aout_data = *oldrawptr; | |
480 | ||
481 | abfd->tdata.aout_data->a.hdr = &rawptr->e; | |
116c20d2 | 482 | *(abfd->tdata.aout_data->a.hdr) = *execp; /* Copy in the internal_exec struct. */ |
e135f41b NC |
483 | execp = abfd->tdata.aout_data->a.hdr; |
484 | ||
116c20d2 | 485 | /* Set the file flags. */ |
e135f41b NC |
486 | abfd->flags = BFD_NO_FLAGS; |
487 | if (execp->a_drsize || execp->a_trsize) | |
488 | abfd->flags |= HAS_RELOC; | |
116c20d2 | 489 | /* Setting of EXEC_P has been deferred to the bottom of this function. */ |
e135f41b NC |
490 | if (execp->a_syms) |
491 | abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS; | |
bbb1afc8 | 492 | if (N_DYNAMIC (execp)) |
e135f41b NC |
493 | abfd->flags |= DYNAMIC; |
494 | ||
bbb1afc8 | 495 | if (N_MAGIC (execp) == ZMAGIC) |
e135f41b NC |
496 | { |
497 | abfd->flags |= D_PAGED | WP_TEXT; | |
498 | adata (abfd).magic = z_magic; | |
499 | } | |
bbb1afc8 | 500 | else if (N_MAGIC (execp) == NMAGIC) |
e135f41b NC |
501 | { |
502 | abfd->flags |= WP_TEXT; | |
503 | adata (abfd).magic = n_magic; | |
504 | } | |
bbb1afc8 | 505 | else if (N_MAGIC (execp) == OMAGIC) |
e135f41b | 506 | adata (abfd).magic = o_magic; |
fa1477dc SC |
507 | else if (N_MAGIC (execp) == IMAGIC) |
508 | adata (abfd).magic = i_magic; | |
e135f41b NC |
509 | else |
510 | { | |
511 | /* Should have been checked with N_BADMAG before this routine | |
512 | was called. */ | |
513 | abort (); | |
514 | } | |
515 | ||
ed48ec2e | 516 | abfd->start_address = execp->a_entry; |
e135f41b | 517 | |
116c20d2 | 518 | obj_aout_symbols (abfd) = NULL; |
ed48ec2e | 519 | abfd->symcount = execp->a_syms / sizeof (struct external_nlist); |
e135f41b NC |
520 | |
521 | /* The default relocation entry size is that of traditional V7 Unix. */ | |
522 | obj_reloc_entry_size (abfd) = RELOC_SIZE; | |
523 | ||
116c20d2 | 524 | /* The default symbol entry size is that of traditional Unix. */ |
e135f41b NC |
525 | obj_symbol_entry_size (abfd) = EXTERNAL_NLIST_SIZE; |
526 | ||
527 | #ifdef USE_MMAP | |
528 | bfd_init_window (&obj_aout_sym_window (abfd)); | |
529 | bfd_init_window (&obj_aout_string_window (abfd)); | |
530 | #endif | |
116c20d2 | 531 | |
e135f41b NC |
532 | obj_aout_external_syms (abfd) = NULL; |
533 | obj_aout_external_strings (abfd) = NULL; | |
534 | obj_aout_sym_hashes (abfd) = NULL; | |
535 | ||
116c20d2 | 536 | if (! NAME (aout, make_sections) (abfd)) |
e135f41b NC |
537 | return NULL; |
538 | ||
eea6121a AM |
539 | obj_datasec (abfd)->size = execp->a_data; |
540 | obj_bsssec (abfd)->size = execp->a_bss; | |
e135f41b NC |
541 | |
542 | obj_textsec (abfd)->flags = | |
543 | (execp->a_trsize != 0 | |
544 | ? (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS | SEC_RELOC) | |
545 | : (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS)); | |
546 | obj_datasec (abfd)->flags = | |
547 | (execp->a_drsize != 0 | |
548 | ? (SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS | SEC_RELOC) | |
549 | : (SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS)); | |
550 | obj_bsssec (abfd)->flags = SEC_ALLOC; | |
551 | ||
552 | #ifdef THIS_IS_ONLY_DOCUMENTATION | |
553 | /* The common code can't fill in these things because they depend | |
554 | on either the start address of the text segment, the rounding | |
555 | up of virtual addresses between segments, or the starting file | |
556 | position of the text segment -- all of which varies among different | |
557 | versions of a.out. */ | |
558 | ||
559 | /* Call back to the format-dependent code to fill in the rest of the | |
560 | fields and do any further cleanup. Things that should be filled | |
561 | in by the callback: */ | |
e135f41b NC |
562 | struct exec *execp = exec_hdr (abfd); |
563 | ||
bbb1afc8 | 564 | obj_textsec (abfd)->size = N_TXTSIZE (execp); |
116c20d2 | 565 | /* Data and bss are already filled in since they're so standard. */ |
e135f41b | 566 | |
116c20d2 | 567 | /* The virtual memory addresses of the sections. */ |
bbb1afc8 AM |
568 | obj_textsec (abfd)->vma = N_TXTADDR (execp); |
569 | obj_datasec (abfd)->vma = N_DATADDR (execp); | |
570 | obj_bsssec (abfd)->vma = N_BSSADDR (execp); | |
e135f41b | 571 | |
116c20d2 | 572 | /* The file offsets of the sections. */ |
bbb1afc8 AM |
573 | obj_textsec (abfd)->filepos = N_TXTOFF (execp); |
574 | obj_datasec (abfd)->filepos = N_DATOFF (execp); | |
e135f41b | 575 | |
116c20d2 | 576 | /* The file offsets of the relocation info. */ |
bbb1afc8 AM |
577 | obj_textsec (abfd)->rel_filepos = N_TRELOFF (execp); |
578 | obj_datasec (abfd)->rel_filepos = N_DRELOFF (execp); | |
e135f41b NC |
579 | |
580 | /* The file offsets of the string table and symbol table. */ | |
bbb1afc8 AM |
581 | obj_str_filepos (abfd) = N_STROFF (execp); |
582 | obj_sym_filepos (abfd) = N_SYMOFF (execp); | |
e135f41b NC |
583 | |
584 | /* Determine the architecture and machine type of the object file. */ | |
585 | abfd->obj_arch = bfd_arch_obscure; | |
586 | ||
587 | adata(abfd)->page_size = TARGET_PAGE_SIZE; | |
588 | adata(abfd)->segment_size = SEGMENT_SIZE; | |
589 | adata(abfd)->exec_bytes_size = EXEC_BYTES_SIZE; | |
590 | ||
cb001c0d | 591 | return _bfd_no_cleanup; |
e135f41b NC |
592 | |
593 | /* The architecture is encoded in various ways in various a.out variants, | |
594 | or is not encoded at all in some of them. The relocation size depends | |
595 | on the architecture and the a.out variant. Finally, the return value | |
596 | is the bfd_target vector in use. If an error occurs, return zero and | |
597 | set bfd_error to the appropriate error code. | |
598 | ||
599 | Formats such as b.out, which have additional fields in the a.out | |
600 | header, should cope with them in this callback as well. */ | |
116c20d2 | 601 | #endif /* DOCUMENTATION */ |
e135f41b | 602 | |
cb001c0d | 603 | cleanup = (*callback_to_real_object_p)(abfd); |
e135f41b NC |
604 | |
605 | /* Now that the segment addresses have been worked out, take a better | |
606 | guess at whether the file is executable. If the entry point | |
607 | is within the text segment, assume it is. (This makes files | |
608 | executable even if their entry point address is 0, as long as | |
609 | their text starts at zero.). | |
610 | ||
611 | This test had to be changed to deal with systems where the text segment | |
612 | runs at a different location than the default. The problem is that the | |
613 | entry address can appear to be outside the text segment, thus causing an | |
614 | erroneous conclusion that the file isn't executable. | |
615 | ||
616 | To fix this, we now accept any non-zero entry point as an indication of | |
617 | executability. This will work most of the time, since only the linker | |
618 | sets the entry point, and that is likely to be non-zero for most systems. */ | |
619 | ||
620 | if (execp->a_entry != 0 | |
621 | || (execp->a_entry >= obj_textsec(abfd)->vma | |
eea6121a | 622 | && execp->a_entry < obj_textsec(abfd)->vma + obj_textsec(abfd)->size)) |
e135f41b NC |
623 | abfd->flags |= EXEC_P; |
624 | #ifdef STAT_FOR_EXEC | |
625 | else | |
626 | { | |
627 | struct stat stat_buf; | |
628 | ||
629 | /* The original heuristic doesn't work in some important cases. | |
07d6d2b8 AM |
630 | The a.out file has no information about the text start |
631 | address. For files (like kernels) linked to non-standard | |
632 | addresses (ld -Ttext nnn) the entry point may not be between | |
633 | the default text start (obj_textsec(abfd)->vma) and | |
634 | (obj_textsec(abfd)->vma) + text size. This is not just a mach | |
635 | issue. Many kernels are loaded at non standard addresses. */ | |
e135f41b NC |
636 | if (abfd->iostream != NULL |
637 | && (abfd->flags & BFD_IN_MEMORY) == 0 | |
638 | && (fstat(fileno((FILE *) (abfd->iostream)), &stat_buf) == 0) | |
639 | && ((stat_buf.st_mode & 0111) != 0)) | |
640 | abfd->flags |= EXEC_P; | |
641 | } | |
642 | #endif /* STAT_FOR_EXEC */ | |
643 | ||
cb001c0d | 644 | if (!cleanup) |
e135f41b NC |
645 | { |
646 | free (rawptr); | |
647 | abfd->tdata.aout_data = oldrawptr; | |
648 | } | |
cb001c0d | 649 | return cleanup; |
e135f41b NC |
650 | } |
651 | ||
116c20d2 | 652 | /* Initialize ABFD for use with a.out files. */ |
e135f41b | 653 | |
b34976b6 | 654 | bfd_boolean |
116c20d2 | 655 | NAME (aout, mkobject) (bfd *abfd) |
e135f41b NC |
656 | { |
657 | struct aout_data_struct *rawptr; | |
986f0783 | 658 | size_t amt = sizeof (struct aout_data_struct); |
e135f41b NC |
659 | |
660 | bfd_set_error (bfd_error_system_call); | |
661 | ||
116c20d2 NC |
662 | /* Use an intermediate variable for clarity. */ |
663 | rawptr = bfd_zalloc (abfd, amt); | |
e135f41b NC |
664 | |
665 | if (rawptr == NULL) | |
b34976b6 | 666 | return FALSE; |
e135f41b NC |
667 | |
668 | abfd->tdata.aout_data = rawptr; | |
669 | exec_hdr (abfd) = &(rawptr->e); | |
670 | ||
116c20d2 NC |
671 | obj_textsec (abfd) = NULL; |
672 | obj_datasec (abfd) = NULL; | |
673 | obj_bsssec (abfd) = NULL; | |
e135f41b | 674 | |
b34976b6 | 675 | return TRUE; |
e135f41b NC |
676 | } |
677 | ||
116c20d2 NC |
678 | /* Keep track of machine architecture and machine type for |
679 | a.out's. Return the <<machine_type>> for a particular | |
680 | architecture and machine, or <<M_UNKNOWN>> if that exact architecture | |
681 | and machine can't be represented in a.out format. | |
e135f41b | 682 | |
116c20d2 NC |
683 | If the architecture is understood, machine type 0 (default) |
684 | is always understood. */ | |
e135f41b NC |
685 | |
686 | enum machine_type | |
116c20d2 NC |
687 | NAME (aout, machine_type) (enum bfd_architecture arch, |
688 | unsigned long machine, | |
689 | bfd_boolean *unknown) | |
e135f41b NC |
690 | { |
691 | enum machine_type arch_flags; | |
692 | ||
693 | arch_flags = M_UNKNOWN; | |
b34976b6 | 694 | *unknown = TRUE; |
e135f41b NC |
695 | |
696 | switch (arch) | |
697 | { | |
698 | case bfd_arch_sparc: | |
699 | if (machine == 0 | |
700 | || machine == bfd_mach_sparc | |
701 | || machine == bfd_mach_sparc_sparclite | |
702 | || machine == bfd_mach_sparc_v9) | |
703 | arch_flags = M_SPARC; | |
704 | else if (machine == bfd_mach_sparc_sparclet) | |
705 | arch_flags = M_SPARCLET; | |
706 | break; | |
707 | ||
e135f41b | 708 | case bfd_arch_i386: |
250d94fd AM |
709 | if (machine == 0 |
710 | || machine == bfd_mach_i386_i386 | |
711 | || machine == bfd_mach_i386_i386_intel_syntax) | |
712 | arch_flags = M_386; | |
e135f41b NC |
713 | break; |
714 | ||
e135f41b NC |
715 | case bfd_arch_arm: |
716 | if (machine == 0) arch_flags = M_ARM; | |
717 | break; | |
718 | ||
719 | case bfd_arch_mips: | |
720 | switch (machine) | |
721 | { | |
722 | case 0: | |
723 | case 2000: | |
724 | case bfd_mach_mips3000: | |
07d6d2b8 | 725 | arch_flags = M_MIPS1; |
e135f41b | 726 | break; |
116c20d2 | 727 | case bfd_mach_mips4000: /* MIPS3 */ |
e135f41b | 728 | case bfd_mach_mips4400: |
116c20d2 NC |
729 | case bfd_mach_mips8000: /* MIPS4 */ |
730 | case bfd_mach_mips6000: /* Real MIPS2: */ | |
07d6d2b8 | 731 | arch_flags = M_MIPS2; |
e135f41b NC |
732 | break; |
733 | default: | |
734 | arch_flags = M_UNKNOWN; | |
735 | break; | |
736 | } | |
737 | break; | |
738 | ||
739 | case bfd_arch_ns32k: | |
740 | switch (machine) | |
741 | { | |
07d6d2b8 | 742 | case 0: arch_flags = M_NS32532; break; |
e135f41b NC |
743 | case 32032: arch_flags = M_NS32032; break; |
744 | case 32532: arch_flags = M_NS32532; break; | |
745 | default: arch_flags = M_UNKNOWN; break; | |
746 | } | |
747 | break; | |
748 | ||
749 | case bfd_arch_pdp11: | |
750 | /* TODO: arch_flags = M_PDP11; */ | |
b34976b6 | 751 | *unknown = FALSE; |
e135f41b NC |
752 | break; |
753 | ||
754 | case bfd_arch_vax: | |
b34976b6 | 755 | *unknown = FALSE; |
e135f41b | 756 | break; |
dc810e39 | 757 | |
e135f41b NC |
758 | default: |
759 | arch_flags = M_UNKNOWN; | |
760 | } | |
761 | ||
762 | if (arch_flags != M_UNKNOWN) | |
b34976b6 | 763 | *unknown = FALSE; |
e135f41b NC |
764 | |
765 | return arch_flags; | |
766 | } | |
767 | ||
116c20d2 NC |
768 | /* Set the architecture and the machine of the ABFD to the |
769 | values ARCH and MACHINE. Verify that @ABFD's format | |
770 | can support the architecture required. */ | |
e135f41b | 771 | |
b34976b6 | 772 | bfd_boolean |
116c20d2 NC |
773 | NAME (aout, set_arch_mach) (bfd *abfd, |
774 | enum bfd_architecture arch, | |
775 | unsigned long machine) | |
e135f41b NC |
776 | { |
777 | if (! bfd_default_set_arch_mach (abfd, arch, machine)) | |
b34976b6 | 778 | return FALSE; |
e135f41b NC |
779 | |
780 | if (arch != bfd_arch_unknown) | |
781 | { | |
b34976b6 | 782 | bfd_boolean unknown; |
e135f41b | 783 | |
116c20d2 | 784 | NAME (aout, machine_type) (arch, machine, &unknown); |
e135f41b | 785 | if (unknown) |
b34976b6 | 786 | return FALSE; |
e135f41b NC |
787 | } |
788 | ||
789 | obj_reloc_entry_size (abfd) = RELOC_SIZE; | |
790 | ||
791 | return (*aout_backend_info(abfd)->set_sizes) (abfd); | |
792 | } | |
793 | ||
794 | static void | |
116c20d2 | 795 | adjust_o_magic (bfd *abfd, struct internal_exec *execp) |
e135f41b NC |
796 | { |
797 | file_ptr pos = adata (abfd).exec_bytes_size; | |
798 | bfd_vma vma = 0; | |
799 | int pad = 0; | |
dda2980f AM |
800 | asection *text = obj_textsec (abfd); |
801 | asection *data = obj_datasec (abfd); | |
802 | asection *bss = obj_bsssec (abfd); | |
e135f41b NC |
803 | |
804 | /* Text. */ | |
dda2980f AM |
805 | text->filepos = pos; |
806 | if (!text->user_set_vma) | |
807 | text->vma = vma; | |
e135f41b | 808 | else |
dda2980f | 809 | vma = text->vma; |
e135f41b | 810 | |
dda2980f AM |
811 | pos += execp->a_text; |
812 | vma += execp->a_text; | |
e135f41b NC |
813 | |
814 | /* Data. */ | |
dda2980f | 815 | if (!data->user_set_vma) |
e135f41b | 816 | { |
e135f41b NC |
817 | pos += pad; |
818 | vma += pad; | |
dda2980f | 819 | data->vma = vma; |
e135f41b NC |
820 | } |
821 | else | |
dda2980f AM |
822 | vma = data->vma; |
823 | execp->a_text += pad; | |
824 | ||
825 | data->filepos = pos; | |
826 | pos += data->size; | |
827 | vma += data->size; | |
e135f41b NC |
828 | |
829 | /* BSS. */ | |
dda2980f | 830 | if (!bss->user_set_vma) |
e135f41b | 831 | { |
e135f41b NC |
832 | pos += pad; |
833 | vma += pad; | |
dda2980f | 834 | bss->vma = vma; |
e135f41b | 835 | } |
fa1477dc | 836 | else if (data->size > 0 || bss->size > 0) /* PR25677: for objcopy --extract-symbol */ |
e135f41b | 837 | { |
08da05b0 | 838 | /* The VMA of the .bss section is set by the VMA of the |
07d6d2b8 AM |
839 | .data section plus the size of the .data section. We may |
840 | need to add padding bytes to make this true. */ | |
dda2980f AM |
841 | pad = bss->vma - vma; |
842 | if (pad < 0) | |
843 | pad = 0; | |
844 | pos += pad; | |
e135f41b | 845 | } |
dda2980f AM |
846 | execp->a_data = data->size + pad; |
847 | bss->filepos = pos; | |
848 | execp->a_bss = bss->size; | |
e135f41b | 849 | |
bbb1afc8 | 850 | N_SET_MAGIC (execp, OMAGIC); |
e135f41b NC |
851 | } |
852 | ||
853 | static void | |
116c20d2 | 854 | adjust_z_magic (bfd *abfd, struct internal_exec *execp) |
e135f41b NC |
855 | { |
856 | bfd_size_type data_pad, text_pad; | |
857 | file_ptr text_end; | |
dc810e39 | 858 | const struct aout_backend_data *abdp; |
dda2980f AM |
859 | /* TRUE if text includes exec header. */ |
860 | bfd_boolean ztih; | |
861 | asection *text = obj_textsec (abfd); | |
862 | asection *data = obj_datasec (abfd); | |
863 | asection *bss = obj_bsssec (abfd); | |
dc810e39 | 864 | |
e135f41b NC |
865 | abdp = aout_backend_info (abfd); |
866 | ||
867 | /* Text. */ | |
868 | ztih = (abdp != NULL | |
869 | && (abdp->text_includes_header | |
870 | || obj_aout_subformat (abfd) == q_magic_format)); | |
dda2980f AM |
871 | text->filepos = (ztih |
872 | ? adata (abfd).exec_bytes_size | |
873 | : adata (abfd).zmagic_disk_block_size); | |
874 | if (!text->user_set_vma) | |
e135f41b NC |
875 | { |
876 | /* ?? Do we really need to check for relocs here? */ | |
dda2980f AM |
877 | text->vma = ((abfd->flags & HAS_RELOC) |
878 | ? 0 | |
879 | : (ztih | |
880 | ? abdp->default_text_vma + adata (abfd).exec_bytes_size | |
881 | : abdp->default_text_vma)); | |
e135f41b NC |
882 | text_pad = 0; |
883 | } | |
884 | else | |
885 | { | |
886 | /* The .text section is being loaded at an unusual address. We | |
07d6d2b8 AM |
887 | may need to pad it such that the .data section starts at a page |
888 | boundary. */ | |
e135f41b | 889 | if (ztih) |
dda2980f | 890 | text_pad = ((text->filepos - text->vma) |
e135f41b NC |
891 | & (adata (abfd).page_size - 1)); |
892 | else | |
dda2980f | 893 | text_pad = (-text->vma |
e135f41b NC |
894 | & (adata (abfd).page_size - 1)); |
895 | } | |
896 | ||
897 | /* Find start of data. */ | |
898 | if (ztih) | |
899 | { | |
dda2980f | 900 | text_end = text->filepos + execp->a_text; |
e135f41b NC |
901 | text_pad += BFD_ALIGN (text_end, adata (abfd).page_size) - text_end; |
902 | } | |
903 | else | |
904 | { | |
905 | /* Note that if page_size == zmagic_disk_block_size, then | |
906 | filepos == page_size, and this case is the same as the ztih | |
907 | case. */ | |
dda2980f | 908 | text_end = execp->a_text; |
e135f41b | 909 | text_pad += BFD_ALIGN (text_end, adata (abfd).page_size) - text_end; |
dda2980f | 910 | text_end += text->filepos; |
e135f41b | 911 | } |
dda2980f | 912 | execp->a_text += text_pad; |
e135f41b NC |
913 | |
914 | /* Data. */ | |
dda2980f | 915 | if (!data->user_set_vma) |
e135f41b NC |
916 | { |
917 | bfd_vma vma; | |
dda2980f AM |
918 | vma = text->vma + execp->a_text; |
919 | data->vma = BFD_ALIGN (vma, adata (abfd).segment_size); | |
e135f41b NC |
920 | } |
921 | if (abdp && abdp->zmagic_mapped_contiguous) | |
922 | { | |
dda2980f AM |
923 | text_pad = data->vma - (text->vma + execp->a_text); |
924 | /* Only pad the text section if the data | |
925 | section is going to be placed after it. */ | |
926 | if (text_pad > 0) | |
927 | execp->a_text += text_pad; | |
e135f41b | 928 | } |
dda2980f | 929 | data->filepos = text->filepos + execp->a_text; |
dc810e39 | 930 | |
e135f41b | 931 | /* Fix up exec header while we're at it. */ |
e135f41b | 932 | if (ztih && (!abdp || (abdp && !abdp->exec_header_not_counted))) |
dda2980f | 933 | execp->a_text += adata (abfd).exec_bytes_size; |
bbb1afc8 | 934 | N_SET_MAGIC (execp, ZMAGIC); |
e135f41b NC |
935 | |
936 | /* Spec says data section should be rounded up to page boundary. */ | |
dda2980f AM |
937 | execp->a_data = align_power (data->size, bss->alignment_power); |
938 | execp->a_data = BFD_ALIGN (execp->a_data, adata (abfd).page_size); | |
939 | data_pad = execp->a_data - data->size; | |
e135f41b NC |
940 | |
941 | /* BSS. */ | |
dda2980f AM |
942 | if (!bss->user_set_vma) |
943 | bss->vma = data->vma + execp->a_data; | |
e135f41b NC |
944 | /* If the BSS immediately follows the data section and extra space |
945 | in the page is left after the data section, fudge data | |
946 | in the header so that the bss section looks smaller by that | |
947 | amount. We'll start the bss section there, and lie to the OS. | |
948 | (Note that a linker script, as well as the above assignment, | |
949 | could have explicitly set the BSS vma to immediately follow | |
950 | the data section.) */ | |
dda2980f AM |
951 | if (align_power (bss->vma, bss->alignment_power) == data->vma + execp->a_data) |
952 | execp->a_bss = data_pad > bss->size ? 0 : bss->size - data_pad; | |
e135f41b | 953 | else |
dda2980f | 954 | execp->a_bss = bss->size; |
e135f41b NC |
955 | } |
956 | ||
957 | static void | |
116c20d2 | 958 | adjust_n_magic (bfd *abfd, struct internal_exec *execp) |
e135f41b | 959 | { |
dda2980f | 960 | file_ptr pos = adata (abfd).exec_bytes_size; |
e135f41b NC |
961 | bfd_vma vma = 0; |
962 | int pad; | |
dda2980f AM |
963 | asection *text = obj_textsec (abfd); |
964 | asection *data = obj_datasec (abfd); | |
965 | asection *bss = obj_bsssec (abfd); | |
dc810e39 | 966 | |
e135f41b | 967 | /* Text. */ |
dda2980f AM |
968 | text->filepos = pos; |
969 | if (!text->user_set_vma) | |
970 | text->vma = vma; | |
e135f41b | 971 | else |
dda2980f AM |
972 | vma = text->vma; |
973 | pos += execp->a_text; | |
974 | vma += execp->a_text; | |
e135f41b NC |
975 | |
976 | /* Data. */ | |
dda2980f AM |
977 | data->filepos = pos; |
978 | if (!data->user_set_vma) | |
979 | data->vma = BFD_ALIGN (vma, adata (abfd).segment_size); | |
980 | vma = data->vma; | |
dc810e39 | 981 | |
e135f41b | 982 | /* Since BSS follows data immediately, see if it needs alignment. */ |
dda2980f AM |
983 | vma += data->size; |
984 | pad = align_power (vma, bss->alignment_power) - vma; | |
985 | execp->a_data = data->size + pad; | |
986 | pos += execp->a_data; | |
e135f41b NC |
987 | |
988 | /* BSS. */ | |
dda2980f AM |
989 | if (!bss->user_set_vma) |
990 | bss->vma = vma; | |
e135f41b | 991 | else |
dda2980f | 992 | vma = bss->vma; |
e135f41b NC |
993 | |
994 | /* Fix up exec header. */ | |
dda2980f | 995 | execp->a_bss = bss->size; |
bbb1afc8 | 996 | N_SET_MAGIC (execp, NMAGIC); |
e135f41b NC |
997 | } |
998 | ||
fa1477dc SC |
999 | static void |
1000 | adjust_i_magic (bfd *abfd, struct internal_exec *execp) | |
1001 | { | |
1002 | file_ptr pos = adata (abfd).exec_bytes_size; | |
1003 | bfd_vma vma = 0; | |
1004 | int pad; | |
1005 | asection *text = obj_textsec (abfd); | |
1006 | asection *data = obj_datasec (abfd); | |
1007 | asection *bss = obj_bsssec (abfd); | |
1008 | ||
1009 | /* Text. */ | |
1010 | text->filepos = pos; | |
1011 | if (!text->user_set_vma) | |
1012 | text->vma = vma; | |
1013 | else | |
1014 | vma = text->vma; | |
1015 | pos += execp->a_text; | |
1016 | ||
1017 | /* Data. */ | |
1018 | data->filepos = pos; | |
1019 | if (!data->user_set_vma) | |
1020 | data->vma = 0; | |
1021 | vma = data->vma; | |
1022 | ||
1023 | /* Since BSS follows data immediately, see if it needs alignment. */ | |
1024 | vma += data->size; | |
1025 | pad = align_power (vma, bss->alignment_power) - vma; | |
1026 | execp->a_data = data->size + pad; | |
1027 | pos += execp->a_data; | |
1028 | ||
1029 | /* BSS. */ | |
1030 | if (!bss->user_set_vma) | |
1031 | bss->vma = vma; | |
1032 | else | |
1033 | vma = bss->vma; | |
1034 | ||
1035 | /* Fix up exec header. */ | |
1036 | execp->a_bss = bss->size; | |
1037 | N_SET_MAGIC (execp, IMAGIC); | |
1038 | } | |
1039 | ||
b34976b6 | 1040 | bfd_boolean |
3a8c4a5b | 1041 | NAME (aout, adjust_sizes_and_vmas) (bfd *abfd) |
e135f41b NC |
1042 | { |
1043 | struct internal_exec *execp = exec_hdr (abfd); | |
1044 | ||
116c20d2 | 1045 | if (! NAME (aout, make_sections) (abfd)) |
b34976b6 | 1046 | return FALSE; |
e135f41b | 1047 | |
dda2980f | 1048 | if (adata (abfd).magic != undecided_magic) |
b34976b6 | 1049 | return TRUE; |
e135f41b | 1050 | |
dda2980f AM |
1051 | execp->a_text = align_power (obj_textsec (abfd)->size, |
1052 | obj_textsec (abfd)->alignment_power); | |
e135f41b | 1053 | |
e135f41b NC |
1054 | /* Rule (heuristic) for when to pad to a new page. Note that there |
1055 | are (at least) two ways demand-paged (ZMAGIC) files have been | |
1056 | handled. Most Berkeley-based systems start the text segment at | |
1057 | (TARGET_PAGE_SIZE). However, newer versions of SUNOS start the text | |
1058 | segment right after the exec header; the latter is counted in the | |
1059 | text segment size, and is paged in by the kernel with the rest of | |
dda2980f | 1060 | the text. */ |
e135f41b NC |
1061 | |
1062 | /* This perhaps isn't the right way to do this, but made it simpler for me | |
1063 | to understand enough to implement it. Better would probably be to go | |
1064 | right from BFD flags to alignment/positioning characteristics. But the | |
1065 | old code was sloppy enough about handling the flags, and had enough | |
1066 | other magic, that it was a little hard for me to understand. I think | |
1067 | I understand it better now, but I haven't time to do the cleanup this | |
1068 | minute. */ | |
1069 | ||
fa1477dc SC |
1070 | if (separate_i_d) |
1071 | adata (abfd).magic = i_magic; | |
1072 | else if (abfd->flags & WP_TEXT) | |
dda2980f | 1073 | adata (abfd).magic = n_magic; |
e135f41b | 1074 | else |
dda2980f | 1075 | adata (abfd).magic = o_magic; |
e135f41b NC |
1076 | |
1077 | #ifdef BFD_AOUT_DEBUG /* requires gcc2 */ | |
1078 | #if __GNUC__ >= 2 | |
1079 | fprintf (stderr, "%s text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x,%x>\n", | |
1080 | ({ char *str; | |
dda2980f AM |
1081 | switch (adata (abfd).magic) |
1082 | { | |
1083 | case n_magic: str = "NMAGIC"; break; | |
1084 | case o_magic: str = "OMAGIC"; break; | |
fa1477dc | 1085 | case i_magic: str = "IMAGIC"; break; |
dda2980f AM |
1086 | case z_magic: str = "ZMAGIC"; break; |
1087 | default: abort (); | |
1088 | } | |
e135f41b NC |
1089 | str; |
1090 | }), | |
dda2980f AM |
1091 | obj_textsec (abfd)->vma, obj_textsec (abfd)->size, |
1092 | obj_textsec (abfd)->alignment_power, | |
1093 | obj_datasec (abfd)->vma, obj_datasec (abfd)->size, | |
1094 | obj_datasec (abfd)->alignment_power, | |
1095 | obj_bsssec (abfd)->vma, obj_bsssec (abfd)->size, | |
1096 | obj_bsssec (abfd)->alignment_power); | |
e135f41b NC |
1097 | #endif |
1098 | #endif | |
1099 | ||
dda2980f | 1100 | switch (adata (abfd).magic) |
e135f41b NC |
1101 | { |
1102 | case o_magic: | |
1103 | adjust_o_magic (abfd, execp); | |
1104 | break; | |
1105 | case z_magic: | |
1106 | adjust_z_magic (abfd, execp); | |
1107 | break; | |
1108 | case n_magic: | |
1109 | adjust_n_magic (abfd, execp); | |
1110 | break; | |
fa1477dc SC |
1111 | case i_magic: |
1112 | adjust_i_magic (abfd, execp); | |
1113 | break; | |
e135f41b NC |
1114 | default: |
1115 | abort (); | |
1116 | } | |
1117 | ||
1118 | #ifdef BFD_AOUT_DEBUG | |
1119 | fprintf (stderr, " text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x>\n", | |
dda2980f AM |
1120 | obj_textsec (abfd)->vma, execp->a_text, |
1121 | obj_textsec (abfd)->filepos, | |
1122 | obj_datasec (abfd)->vma, execp->a_data, | |
1123 | obj_datasec (abfd)->filepos, | |
1124 | obj_bsssec (abfd)->vma, execp->a_bss); | |
e135f41b NC |
1125 | #endif |
1126 | ||
b34976b6 | 1127 | return TRUE; |
e135f41b NC |
1128 | } |
1129 | ||
116c20d2 | 1130 | /* Called by the BFD in response to a bfd_make_section request. */ |
e135f41b | 1131 | |
b34976b6 | 1132 | bfd_boolean |
116c20d2 | 1133 | NAME (aout, new_section_hook) (bfd *abfd, asection *newsect) |
e135f41b | 1134 | { |
116c20d2 | 1135 | /* Align to double at least. */ |
e135f41b NC |
1136 | newsect->alignment_power = bfd_get_arch_info(abfd)->section_align_power; |
1137 | ||
e135f41b NC |
1138 | if (bfd_get_format (abfd) == bfd_object) |
1139 | { | |
1140 | if (obj_textsec (abfd) == NULL | |
f592407e | 1141 | && !strcmp (newsect->name, ".text")) |
e135f41b NC |
1142 | { |
1143 | obj_textsec(abfd)= newsect; | |
1144 | newsect->target_index = N_TEXT; | |
e135f41b | 1145 | } |
f592407e AM |
1146 | else if (obj_datasec (abfd) == NULL |
1147 | && !strcmp (newsect->name, ".data")) | |
1148 | { | |
1149 | obj_datasec (abfd) = newsect; | |
1150 | newsect->target_index = N_DATA; | |
1151 | } | |
1152 | else if (obj_bsssec (abfd) == NULL | |
1153 | && !strcmp (newsect->name, ".bss")) | |
1154 | { | |
1155 | obj_bsssec (abfd) = newsect; | |
1156 | newsect->target_index = N_BSS; | |
1157 | } | |
1158 | } | |
e135f41b | 1159 | |
116c20d2 | 1160 | /* We allow more than three sections internally. */ |
f592407e | 1161 | return _bfd_generic_new_section_hook (abfd, newsect); |
e135f41b NC |
1162 | } |
1163 | ||
b34976b6 | 1164 | bfd_boolean |
116c20d2 NC |
1165 | NAME (aout, set_section_contents) (bfd *abfd, |
1166 | sec_ptr section, | |
1167 | const void * location, | |
1168 | file_ptr offset, | |
1169 | bfd_size_type count) | |
e135f41b | 1170 | { |
e135f41b NC |
1171 | if (! abfd->output_has_begun) |
1172 | { | |
3a8c4a5b | 1173 | if (! NAME (aout, adjust_sizes_and_vmas) (abfd)) |
b34976b6 | 1174 | return FALSE; |
e135f41b NC |
1175 | } |
1176 | ||
1177 | if (section == obj_bsssec (abfd)) | |
1178 | { | |
1179 | bfd_set_error (bfd_error_no_contents); | |
b34976b6 | 1180 | return FALSE; |
e135f41b NC |
1181 | } |
1182 | ||
1183 | if (section != obj_textsec (abfd) | |
1184 | && section != obj_datasec (abfd)) | |
1185 | { | |
4eca0228 | 1186 | _bfd_error_handler |
695344c0 | 1187 | /* xgettext:c-format */ |
871b3ab2 | 1188 | (_("%pB: can not represent section `%pA' in a.out object file format"), |
dae82561 | 1189 | abfd, section); |
e135f41b | 1190 | bfd_set_error (bfd_error_nonrepresentable_section); |
b34976b6 | 1191 | return FALSE; |
e135f41b NC |
1192 | } |
1193 | ||
1194 | if (count != 0) | |
1195 | { | |
1196 | if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0 | |
dc810e39 | 1197 | || bfd_bwrite (location, count, abfd) != count) |
b34976b6 | 1198 | return FALSE; |
e135f41b NC |
1199 | } |
1200 | ||
b34976b6 | 1201 | return TRUE; |
e135f41b NC |
1202 | } |
1203 | \f | |
1204 | /* Read the external symbols from an a.out file. */ | |
1205 | ||
b34976b6 | 1206 | static bfd_boolean |
116c20d2 | 1207 | aout_get_external_symbols (bfd *abfd) |
e135f41b | 1208 | { |
116c20d2 | 1209 | if (obj_aout_external_syms (abfd) == NULL) |
e135f41b NC |
1210 | { |
1211 | bfd_size_type count; | |
1212 | struct external_nlist *syms; | |
1213 | ||
1214 | count = exec_hdr (abfd)->a_syms / EXTERNAL_NLIST_SIZE; | |
1215 | ||
37e3922e NC |
1216 | /* PR 17512: file: 011f5a08. */ |
1217 | if (count == 0) | |
49987e5c NC |
1218 | { |
1219 | obj_aout_external_syms (abfd) = NULL; | |
1220 | obj_aout_external_sym_count (abfd) = count; | |
1221 | return TRUE; | |
1222 | } | |
1223 | ||
e135f41b | 1224 | #ifdef USE_MMAP |
82e51918 AM |
1225 | if (! bfd_get_file_window (abfd, obj_sym_filepos (abfd), |
1226 | exec_hdr (abfd)->a_syms, | |
b34976b6 AM |
1227 | &obj_aout_sym_window (abfd), TRUE)) |
1228 | return FALSE; | |
e135f41b NC |
1229 | syms = (struct external_nlist *) obj_aout_sym_window (abfd).data; |
1230 | #else | |
1231 | /* We allocate using malloc to make the values easy to free | |
1232 | later on. If we put them on the objalloc it might not be | |
1233 | possible to free them. */ | |
2bb3687b AM |
1234 | if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0) |
1235 | return FALSE; | |
1236 | syms = (struct external_nlist *) | |
1237 | _bfd_malloc_and_read (abfd, count * EXTERNAL_NLIST_SIZE, | |
1238 | count * EXTERNAL_NLIST_SIZE); | |
116c20d2 | 1239 | if (syms == NULL && count != 0) |
b34976b6 | 1240 | return FALSE; |
e135f41b NC |
1241 | #endif |
1242 | ||
1243 | obj_aout_external_syms (abfd) = syms; | |
1244 | obj_aout_external_sym_count (abfd) = count; | |
1245 | } | |
dc810e39 | 1246 | |
e135f41b NC |
1247 | if (obj_aout_external_strings (abfd) == NULL |
1248 | && exec_hdr (abfd)->a_syms != 0) | |
1249 | { | |
1250 | unsigned char string_chars[BYTES_IN_LONG]; | |
1251 | bfd_size_type stringsize; | |
1252 | char *strings; | |
1253 | ||
1254 | /* Get the size of the strings. */ | |
1255 | if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0 | |
116c20d2 | 1256 | || (bfd_bread ((void *) string_chars, (bfd_size_type) BYTES_IN_LONG, |
dc810e39 | 1257 | abfd) != BYTES_IN_LONG)) |
b34976b6 | 1258 | return FALSE; |
dc810e39 | 1259 | stringsize = H_GET_32 (abfd, string_chars); |
e135f41b NC |
1260 | |
1261 | #ifdef USE_MMAP | |
82e51918 | 1262 | if (! bfd_get_file_window (abfd, obj_str_filepos (abfd), stringsize, |
b34976b6 AM |
1263 | &obj_aout_string_window (abfd), TRUE)) |
1264 | return FALSE; | |
e135f41b NC |
1265 | strings = (char *) obj_aout_string_window (abfd).data; |
1266 | #else | |
116c20d2 | 1267 | strings = bfd_malloc (stringsize + 1); |
e135f41b | 1268 | if (strings == NULL) |
b34976b6 | 1269 | return FALSE; |
e135f41b NC |
1270 | |
1271 | /* Skip space for the string count in the buffer for convenience | |
1272 | when using indexes. */ | |
dc810e39 | 1273 | if (bfd_bread (strings + 4, stringsize - 4, abfd) != stringsize - 4) |
e135f41b NC |
1274 | { |
1275 | free (strings); | |
b34976b6 | 1276 | return FALSE; |
e135f41b NC |
1277 | } |
1278 | #endif | |
e135f41b NC |
1279 | /* Ensure that a zero index yields an empty string. */ |
1280 | strings[0] = '\0'; | |
1281 | ||
1282 | strings[stringsize - 1] = 0; | |
1283 | ||
1284 | obj_aout_external_strings (abfd) = strings; | |
1285 | obj_aout_external_string_size (abfd) = stringsize; | |
1286 | } | |
1287 | ||
b34976b6 | 1288 | return TRUE; |
e135f41b NC |
1289 | } |
1290 | ||
1291 | /* Translate an a.out symbol into a BFD symbol. The desc, other, type | |
1292 | and symbol->value fields of CACHE_PTR will be set from the a.out | |
1293 | nlist structure. This function is responsible for setting | |
1294 | symbol->flags and symbol->section, and adjusting symbol->value. */ | |
1295 | ||
b34976b6 | 1296 | static bfd_boolean |
116c20d2 NC |
1297 | translate_from_native_sym_flags (bfd *abfd, |
1298 | aout_symbol_type *cache_ptr) | |
e135f41b NC |
1299 | { |
1300 | flagword visible; | |
1301 | ||
1302 | if (cache_ptr->type == N_FN) | |
1303 | { | |
1304 | asection *sec; | |
1305 | ||
1306 | /* This is a debugging symbol. */ | |
e135f41b NC |
1307 | cache_ptr->symbol.flags = BSF_DEBUGGING; |
1308 | ||
1309 | /* Work out the symbol section. */ | |
1310 | switch (cache_ptr->type & N_TYPE) | |
1311 | { | |
1312 | case N_TEXT: | |
1313 | case N_FN: | |
1314 | sec = obj_textsec (abfd); | |
1315 | break; | |
1316 | case N_DATA: | |
1317 | sec = obj_datasec (abfd); | |
1318 | break; | |
1319 | case N_BSS: | |
1320 | sec = obj_bsssec (abfd); | |
1321 | break; | |
1322 | default: | |
1323 | case N_ABS: | |
1324 | sec = bfd_abs_section_ptr; | |
1325 | break; | |
1326 | } | |
1327 | ||
1328 | cache_ptr->symbol.section = sec; | |
1329 | cache_ptr->symbol.value -= sec->vma; | |
1330 | ||
b34976b6 | 1331 | return TRUE; |
e135f41b NC |
1332 | } |
1333 | ||
1334 | /* Get the default visibility. This does not apply to all types, so | |
1335 | we just hold it in a local variable to use if wanted. */ | |
1336 | if ((cache_ptr->type & N_EXT) == 0) | |
1337 | visible = BSF_LOCAL; | |
1338 | else | |
1339 | visible = BSF_GLOBAL; | |
1340 | ||
1341 | switch (cache_ptr->type) | |
1342 | { | |
1343 | default: | |
1344 | case N_ABS: case N_ABS | N_EXT: | |
1345 | cache_ptr->symbol.section = bfd_abs_section_ptr; | |
1346 | cache_ptr->symbol.flags = visible; | |
1347 | break; | |
1348 | ||
1349 | case N_UNDF | N_EXT: | |
1350 | if (cache_ptr->symbol.value != 0) | |
1351 | { | |
1352 | /* This is a common symbol. */ | |
1353 | cache_ptr->symbol.flags = BSF_GLOBAL; | |
1354 | cache_ptr->symbol.section = bfd_com_section_ptr; | |
1355 | } | |
1356 | else | |
1357 | { | |
1358 | cache_ptr->symbol.flags = 0; | |
1359 | cache_ptr->symbol.section = bfd_und_section_ptr; | |
1360 | } | |
1361 | break; | |
1362 | ||
1363 | case N_TEXT: case N_TEXT | N_EXT: | |
1364 | cache_ptr->symbol.section = obj_textsec (abfd); | |
1365 | cache_ptr->symbol.value -= cache_ptr->symbol.section->vma; | |
1366 | cache_ptr->symbol.flags = visible; | |
1367 | break; | |
1368 | ||
1369 | case N_DATA: case N_DATA | N_EXT: | |
1370 | cache_ptr->symbol.section = obj_datasec (abfd); | |
1371 | cache_ptr->symbol.value -= cache_ptr->symbol.section->vma; | |
1372 | cache_ptr->symbol.flags = visible; | |
1373 | break; | |
1374 | ||
1375 | case N_BSS: case N_BSS | N_EXT: | |
1376 | cache_ptr->symbol.section = obj_bsssec (abfd); | |
1377 | cache_ptr->symbol.value -= cache_ptr->symbol.section->vma; | |
1378 | cache_ptr->symbol.flags = visible; | |
1379 | break; | |
1380 | } | |
1381 | ||
b34976b6 | 1382 | return TRUE; |
e135f41b NC |
1383 | } |
1384 | ||
1385 | /* Set the fields of SYM_POINTER according to CACHE_PTR. */ | |
1386 | ||
b34976b6 | 1387 | static bfd_boolean |
116c20d2 NC |
1388 | translate_to_native_sym_flags (bfd *abfd, |
1389 | asymbol *cache_ptr, | |
1390 | struct external_nlist *sym_pointer) | |
e135f41b NC |
1391 | { |
1392 | bfd_vma value = cache_ptr->value; | |
1393 | asection *sec; | |
1394 | bfd_vma off; | |
1395 | ||
1396 | /* Mask out any existing type bits in case copying from one section | |
1397 | to another. */ | |
1398 | sym_pointer->e_type[0] &= ~N_TYPE; | |
1399 | ||
e6f7f6d1 | 1400 | sec = bfd_asymbol_section (cache_ptr); |
e135f41b NC |
1401 | off = 0; |
1402 | ||
1403 | if (sec == NULL) | |
1404 | { | |
1405 | /* This case occurs, e.g., for the *DEBUG* section of a COFF | |
1406 | file. */ | |
4eca0228 | 1407 | _bfd_error_handler |
695344c0 | 1408 | /* xgettext:c-format */ |
871b3ab2 | 1409 | (_("%pB: can not represent section for symbol `%s' in a.out object file format"), |
d003868e | 1410 | abfd, cache_ptr->name != NULL ? cache_ptr->name : "*unknown*"); |
e135f41b | 1411 | bfd_set_error (bfd_error_nonrepresentable_section); |
b34976b6 | 1412 | return FALSE; |
e135f41b NC |
1413 | } |
1414 | ||
1415 | if (sec->output_section != NULL) | |
1416 | { | |
1417 | off = sec->output_offset; | |
1418 | sec = sec->output_section; | |
1419 | } | |
1420 | ||
1421 | if (bfd_is_abs_section (sec)) | |
1422 | sym_pointer->e_type[0] |= N_ABS; | |
1423 | else if (sec == obj_textsec (abfd)) | |
1424 | sym_pointer->e_type[0] |= N_TEXT; | |
1425 | else if (sec == obj_datasec (abfd)) | |
1426 | sym_pointer->e_type[0] |= N_DATA; | |
1427 | else if (sec == obj_bsssec (abfd)) | |
1428 | sym_pointer->e_type[0] |= N_BSS; | |
1429 | else if (bfd_is_und_section (sec)) | |
1430 | sym_pointer->e_type[0] = N_UNDF | N_EXT; | |
1431 | else if (bfd_is_com_section (sec)) | |
1432 | sym_pointer->e_type[0] = N_UNDF | N_EXT; | |
1433 | else | |
1434 | { | |
4eca0228 | 1435 | _bfd_error_handler |
695344c0 | 1436 | /* xgettext:c-format */ |
871b3ab2 | 1437 | (_("%pB: can not represent section `%pA' in a.out object file format"), |
d003868e | 1438 | abfd, sec); |
e135f41b | 1439 | bfd_set_error (bfd_error_nonrepresentable_section); |
b34976b6 | 1440 | return FALSE; |
e135f41b NC |
1441 | } |
1442 | ||
1443 | /* Turn the symbol from section relative to absolute again */ | |
1444 | value += sec->vma + off; | |
1445 | ||
1446 | if ((cache_ptr->flags & BSF_DEBUGGING) != 0) | |
1447 | sym_pointer->e_type[0] = ((aout_symbol_type *) cache_ptr)->type; | |
1448 | else if ((cache_ptr->flags & BSF_GLOBAL) != 0) | |
1449 | sym_pointer->e_type[0] |= N_EXT; | |
1450 | ||
e135f41b NC |
1451 | PUT_WORD(abfd, value, sym_pointer->e_value); |
1452 | ||
b34976b6 | 1453 | return TRUE; |
e135f41b NC |
1454 | } |
1455 | \f | |
1456 | /* Native-level interface to symbols. */ | |
1457 | ||
1458 | asymbol * | |
116c20d2 | 1459 | NAME (aout, make_empty_symbol) (bfd *abfd) |
e135f41b | 1460 | { |
986f0783 | 1461 | size_t amt = sizeof (aout_symbol_type); |
d3ce72d0 | 1462 | aout_symbol_type *new_symbol_type = bfd_zalloc (abfd, amt); |
116c20d2 | 1463 | |
d3ce72d0 | 1464 | if (!new_symbol_type) |
e135f41b | 1465 | return NULL; |
d3ce72d0 | 1466 | new_symbol_type->symbol.the_bfd = abfd; |
e135f41b | 1467 | |
d3ce72d0 | 1468 | return &new_symbol_type->symbol; |
e135f41b NC |
1469 | } |
1470 | ||
1471 | /* Translate a set of internal symbols into external symbols. */ | |
1472 | ||
b34976b6 | 1473 | bfd_boolean |
116c20d2 NC |
1474 | NAME (aout, translate_symbol_table) (bfd *abfd, |
1475 | aout_symbol_type *in, | |
1476 | struct external_nlist *ext, | |
1477 | bfd_size_type count, | |
1478 | char *str, | |
1479 | bfd_size_type strsize, | |
1480 | bfd_boolean dynamic) | |
e135f41b NC |
1481 | { |
1482 | struct external_nlist *ext_end; | |
1483 | ||
1484 | ext_end = ext + count; | |
1485 | for (; ext < ext_end; ext++, in++) | |
1486 | { | |
1487 | bfd_vma x; | |
1488 | ||
1489 | x = GET_WORD (abfd, ext->e_strx); | |
1490 | in->symbol.the_bfd = abfd; | |
1491 | ||
1492 | /* For the normal symbols, the zero index points at the number | |
1493 | of bytes in the string table but is to be interpreted as the | |
1494 | null string. For the dynamic symbols, the number of bytes in | |
1495 | the string table is stored in the __DYNAMIC structure and the | |
1496 | zero index points at an actual string. */ | |
1497 | if (x == 0 && ! dynamic) | |
1498 | in->symbol.name = ""; | |
1499 | else if (x < strsize) | |
1500 | in->symbol.name = str + x; | |
1501 | else | |
b34976b6 | 1502 | return FALSE; |
e135f41b NC |
1503 | |
1504 | in->symbol.value = GET_SWORD (abfd, ext->e_value); | |
116c20d2 | 1505 | /* TODO: is 0 a safe value here? */ |
e135f41b NC |
1506 | in->desc = 0; |
1507 | in->other = 0; | |
dc810e39 | 1508 | in->type = H_GET_8 (abfd, ext->e_type); |
e135f41b NC |
1509 | in->symbol.udata.p = NULL; |
1510 | ||
1511 | if (! translate_from_native_sym_flags (abfd, in)) | |
b34976b6 | 1512 | return FALSE; |
e135f41b NC |
1513 | |
1514 | if (dynamic) | |
1515 | in->symbol.flags |= BSF_DYNAMIC; | |
1516 | } | |
1517 | ||
b34976b6 | 1518 | return TRUE; |
e135f41b NC |
1519 | } |
1520 | ||
1521 | /* We read the symbols into a buffer, which is discarded when this | |
1522 | function exits. We read the strings into a buffer large enough to | |
116c20d2 | 1523 | hold them all plus all the cached symbol entries. */ |
e135f41b | 1524 | |
b34976b6 | 1525 | bfd_boolean |
116c20d2 | 1526 | NAME (aout, slurp_symbol_table) (bfd *abfd) |
e135f41b NC |
1527 | { |
1528 | struct external_nlist *old_external_syms; | |
1529 | aout_symbol_type *cached; | |
dc810e39 | 1530 | bfd_size_type cached_size; |
e135f41b | 1531 | |
116c20d2 NC |
1532 | /* If there's no work to be done, don't do any. */ |
1533 | if (obj_aout_symbols (abfd) != NULL) | |
b34976b6 | 1534 | return TRUE; |
e135f41b NC |
1535 | |
1536 | old_external_syms = obj_aout_external_syms (abfd); | |
1537 | ||
1538 | if (! aout_get_external_symbols (abfd)) | |
b34976b6 | 1539 | return FALSE; |
e135f41b | 1540 | |
dc810e39 AM |
1541 | cached_size = obj_aout_external_sym_count (abfd); |
1542 | cached_size *= sizeof (aout_symbol_type); | |
116c20d2 | 1543 | cached = bfd_zmalloc (cached_size); |
e135f41b | 1544 | if (cached == NULL && cached_size != 0) |
b34976b6 | 1545 | return FALSE; |
e135f41b NC |
1546 | |
1547 | /* Convert from external symbol information to internal. */ | |
116c20d2 | 1548 | if (! (NAME (aout, translate_symbol_table) |
e135f41b NC |
1549 | (abfd, cached, |
1550 | obj_aout_external_syms (abfd), | |
1551 | obj_aout_external_sym_count (abfd), | |
1552 | obj_aout_external_strings (abfd), | |
1553 | obj_aout_external_string_size (abfd), | |
b34976b6 | 1554 | FALSE))) |
e135f41b NC |
1555 | { |
1556 | free (cached); | |
b34976b6 | 1557 | return FALSE; |
e135f41b NC |
1558 | } |
1559 | ||
ed48ec2e | 1560 | abfd->symcount = obj_aout_external_sym_count (abfd); |
e135f41b NC |
1561 | |
1562 | obj_aout_symbols (abfd) = cached; | |
1563 | ||
1564 | /* It is very likely that anybody who calls this function will not | |
1565 | want the external symbol information, so if it was allocated | |
1566 | because of our call to aout_get_external_symbols, we free it up | |
1567 | right away to save space. */ | |
116c20d2 NC |
1568 | if (old_external_syms == NULL |
1569 | && obj_aout_external_syms (abfd) != NULL) | |
e135f41b NC |
1570 | { |
1571 | #ifdef USE_MMAP | |
1572 | bfd_free_window (&obj_aout_sym_window (abfd)); | |
1573 | #else | |
1574 | free (obj_aout_external_syms (abfd)); | |
1575 | #endif | |
1576 | obj_aout_external_syms (abfd) = NULL; | |
1577 | } | |
1578 | ||
b34976b6 | 1579 | return TRUE; |
e135f41b NC |
1580 | } |
1581 | \f | |
1582 | /* We use a hash table when writing out symbols so that we only write | |
1583 | out a particular string once. This helps particularly when the | |
1584 | linker writes out stabs debugging entries, because each different | |
1585 | contributing object file tends to have many duplicate stabs | |
1586 | strings. | |
1587 | ||
1588 | This hash table code breaks dbx on SunOS 4.1.3, so we don't do it | |
1589 | if BFD_TRADITIONAL_FORMAT is set. */ | |
1590 | ||
e135f41b NC |
1591 | /* Get the index of a string in a strtab, adding it if it is not |
1592 | already present. */ | |
1593 | ||
1594 | static INLINE bfd_size_type | |
116c20d2 NC |
1595 | add_to_stringtab (bfd *abfd, |
1596 | struct bfd_strtab_hash *tab, | |
1597 | const char *str, | |
1598 | bfd_boolean copy) | |
e135f41b | 1599 | { |
b34976b6 | 1600 | bfd_boolean hash; |
91d6fa6a | 1601 | bfd_size_type str_index; |
e135f41b NC |
1602 | |
1603 | /* An index of 0 always means the empty string. */ | |
1604 | if (str == 0 || *str == '\0') | |
1605 | return 0; | |
1606 | ||
1607 | /* Don't hash if BFD_TRADITIONAL_FORMAT is set, because SunOS dbx | |
1608 | doesn't understand a hashed string table. */ | |
b34976b6 | 1609 | hash = TRUE; |
e135f41b | 1610 | if ((abfd->flags & BFD_TRADITIONAL_FORMAT) != 0) |
b34976b6 | 1611 | hash = FALSE; |
e135f41b | 1612 | |
91d6fa6a | 1613 | str_index = _bfd_stringtab_add (tab, str, hash, copy); |
e135f41b | 1614 | |
91d6fa6a | 1615 | if (str_index != (bfd_size_type) -1) |
116c20d2 NC |
1616 | /* Add BYTES_IN_LONG to the return value to account for the |
1617 | space taken up by the string table size. */ | |
91d6fa6a | 1618 | str_index += BYTES_IN_LONG; |
e135f41b | 1619 | |
91d6fa6a | 1620 | return str_index; |
e135f41b NC |
1621 | } |
1622 | ||
1623 | /* Write out a strtab. ABFD is already at the right location in the | |
1624 | file. */ | |
1625 | ||
b34976b6 | 1626 | static bfd_boolean |
116c20d2 | 1627 | emit_stringtab (bfd *abfd, struct bfd_strtab_hash *tab) |
e135f41b NC |
1628 | { |
1629 | bfd_byte buffer[BYTES_IN_LONG]; | |
1630 | ||
1631 | /* The string table starts with the size. */ | |
dc810e39 | 1632 | H_PUT_32 (abfd, _bfd_stringtab_size (tab) + BYTES_IN_LONG, buffer); |
116c20d2 | 1633 | if (bfd_bwrite ((void *) buffer, (bfd_size_type) BYTES_IN_LONG, abfd) |
dc810e39 | 1634 | != BYTES_IN_LONG) |
b34976b6 | 1635 | return FALSE; |
e135f41b NC |
1636 | |
1637 | return _bfd_stringtab_emit (abfd, tab); | |
1638 | } | |
1639 | \f | |
b34976b6 | 1640 | bfd_boolean |
116c20d2 | 1641 | NAME (aout, write_syms) (bfd *abfd) |
e135f41b NC |
1642 | { |
1643 | unsigned int count ; | |
1644 | asymbol **generic = bfd_get_outsymbols (abfd); | |
1645 | struct bfd_strtab_hash *strtab; | |
1646 | ||
1647 | strtab = _bfd_stringtab_init (); | |
1648 | if (strtab == NULL) | |
b34976b6 | 1649 | return FALSE; |
e135f41b NC |
1650 | |
1651 | for (count = 0; count < bfd_get_symcount (abfd); count++) | |
1652 | { | |
1653 | asymbol *g = generic[count]; | |
1654 | bfd_size_type indx; | |
1655 | struct external_nlist nsp; | |
1656 | ||
dc810e39 | 1657 | PUT_WORD (abfd, 0, nsp.e_unused); |
e135f41b | 1658 | |
b34976b6 | 1659 | indx = add_to_stringtab (abfd, strtab, g->name, FALSE); |
e135f41b NC |
1660 | if (indx == (bfd_size_type) -1) |
1661 | goto error_return; | |
dc810e39 | 1662 | PUT_WORD (abfd, indx, nsp.e_strx); |
e135f41b NC |
1663 | |
1664 | if (bfd_asymbol_flavour(g) == abfd->xvec->flavour) | |
dc810e39 | 1665 | H_PUT_8 (abfd, aout_symbol(g)->type, nsp.e_type); |
e135f41b | 1666 | else |
dc810e39 | 1667 | H_PUT_8 (abfd, 0, nsp.e_type); |
e135f41b NC |
1668 | |
1669 | if (! translate_to_native_sym_flags (abfd, g, &nsp)) | |
1670 | goto error_return; | |
1671 | ||
dc810e39 | 1672 | H_PUT_8 (abfd, 0, nsp.e_ovly); |
e135f41b | 1673 | |
116c20d2 | 1674 | if (bfd_bwrite ((void *)&nsp, (bfd_size_type) EXTERNAL_NLIST_SIZE, abfd) |
e135f41b NC |
1675 | != EXTERNAL_NLIST_SIZE) |
1676 | goto error_return; | |
1677 | ||
1678 | /* NB: `KEEPIT' currently overlays `udata.p', so set this only | |
1679 | here, at the end. */ | |
1680 | g->KEEPIT = count; | |
1681 | } | |
1682 | ||
1683 | if (! emit_stringtab (abfd, strtab)) | |
1684 | goto error_return; | |
1685 | ||
1686 | _bfd_stringtab_free (strtab); | |
1687 | ||
b34976b6 | 1688 | return TRUE; |
e135f41b | 1689 | |
dc1e8a47 | 1690 | error_return: |
e135f41b | 1691 | _bfd_stringtab_free (strtab); |
b34976b6 | 1692 | return FALSE; |
e135f41b NC |
1693 | } |
1694 | ||
1695 | \f | |
1696 | long | |
116c20d2 | 1697 | NAME (aout, canonicalize_symtab) (bfd *abfd, asymbol **location) |
e135f41b | 1698 | { |
116c20d2 NC |
1699 | unsigned int counter = 0; |
1700 | aout_symbol_type *symbase; | |
e135f41b | 1701 | |
116c20d2 NC |
1702 | if (!NAME (aout, slurp_symbol_table) (abfd)) |
1703 | return -1; | |
e135f41b | 1704 | |
116c20d2 NC |
1705 | for (symbase = obj_aout_symbols (abfd); counter++ < bfd_get_symcount (abfd);) |
1706 | *(location++) = (asymbol *)(symbase++); | |
1707 | *location++ =0; | |
1708 | return bfd_get_symcount (abfd); | |
e135f41b NC |
1709 | } |
1710 | ||
1711 | \f | |
116c20d2 | 1712 | /* Output extended relocation information to a file in target byte order. */ |
e135f41b | 1713 | |
116c20d2 NC |
1714 | static void |
1715 | pdp11_aout_swap_reloc_out (bfd *abfd, arelent *g, bfd_byte *natptr) | |
e135f41b NC |
1716 | { |
1717 | int r_index; | |
1718 | int r_pcrel; | |
1719 | int reloc_entry; | |
1720 | int r_type; | |
1721 | asymbol *sym = *(g->sym_ptr_ptr); | |
1722 | asection *output_section = sym->section->output_section; | |
1723 | ||
1724 | if (g->addend != 0) | |
1725 | fprintf (stderr, "BFD: can't do this reloc addend stuff\n"); | |
1726 | ||
1727 | r_pcrel = g->howto->pc_relative; | |
1728 | ||
1729 | if (bfd_is_abs_section (output_section)) | |
1730 | r_type = RABS; | |
1731 | else if (output_section == obj_textsec (abfd)) | |
1732 | r_type = RTEXT; | |
1733 | else if (output_section == obj_datasec (abfd)) | |
1734 | r_type = RDATA; | |
1735 | else if (output_section == obj_bsssec (abfd)) | |
1736 | r_type = RBSS; | |
1737 | else if (bfd_is_und_section (output_section)) | |
1738 | r_type = REXT; | |
1739 | else if (bfd_is_com_section (output_section)) | |
1740 | r_type = REXT; | |
1741 | else | |
1742 | r_type = -1; | |
1743 | ||
1744 | BFD_ASSERT (r_type != -1); | |
1745 | ||
1746 | if (r_type == RABS) | |
1747 | r_index = 0; | |
1748 | else | |
1749 | r_index = (*(g->sym_ptr_ptr))->KEEPIT; | |
1750 | ||
e135f41b NC |
1751 | reloc_entry = r_index << 4 | r_type | r_pcrel; |
1752 | ||
9dadfa79 | 1753 | PUT_WORD (abfd, reloc_entry, natptr); |
e135f41b NC |
1754 | } |
1755 | ||
1756 | /* BFD deals internally with all things based from the section they're | |
1757 | in. so, something in 10 bytes into a text section with a base of | |
1758 | 50 would have a symbol (.text+10) and know .text vma was 50. | |
1759 | ||
1760 | Aout keeps all it's symbols based from zero, so the symbol would | |
1761 | contain 60. This macro subs the base of each section from the value | |
1762 | to give the true offset from the section */ | |
1763 | ||
1764 | ||
07d6d2b8 AM |
1765 | #define MOVE_ADDRESS(ad) \ |
1766 | if (r_extern) \ | |
e135f41b NC |
1767 | { \ |
1768 | /* Undefined symbol. */ \ | |
1769 | cache_ptr->sym_ptr_ptr = symbols + r_index; \ | |
1770 | cache_ptr->addend = ad; \ | |
1771 | } \ | |
1772 | else \ | |
1773 | { \ | |
07d6d2b8 | 1774 | /* Defined, section relative. replace symbol with pointer to \ |
e135f41b NC |
1775 | symbol which points to section. */ \ |
1776 | switch (r_index) \ | |
1777 | { \ | |
1778 | case N_TEXT: \ | |
1779 | case N_TEXT | N_EXT: \ | |
1780 | cache_ptr->sym_ptr_ptr = obj_textsec (abfd)->symbol_ptr_ptr; \ | |
1781 | cache_ptr->addend = ad - su->textsec->vma; \ | |
1782 | break; \ | |
1783 | case N_DATA: \ | |
1784 | case N_DATA | N_EXT: \ | |
1785 | cache_ptr->sym_ptr_ptr = obj_datasec (abfd)->symbol_ptr_ptr; \ | |
1786 | cache_ptr->addend = ad - su->datasec->vma; \ | |
1787 | break; \ | |
1788 | case N_BSS: \ | |
1789 | case N_BSS | N_EXT: \ | |
1790 | cache_ptr->sym_ptr_ptr = obj_bsssec (abfd)->symbol_ptr_ptr; \ | |
1791 | cache_ptr->addend = ad - su->bsssec->vma; \ | |
1792 | break; \ | |
1793 | default: \ | |
1794 | case N_ABS: \ | |
1795 | case N_ABS | N_EXT: \ | |
1796 | cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; \ | |
1797 | cache_ptr->addend = ad; \ | |
1798 | break; \ | |
1799 | } \ | |
dc810e39 | 1800 | } |
e135f41b | 1801 | |
116c20d2 | 1802 | static void |
07d6d2b8 AM |
1803 | pdp11_aout_swap_reloc_in (bfd * abfd, |
1804 | bfd_byte * bytes, | |
1805 | arelent * cache_ptr, | |
1806 | bfd_size_type offset, | |
1807 | asymbol ** symbols, | |
1808 | bfd_size_type symcount) | |
e135f41b NC |
1809 | { |
1810 | struct aoutdata *su = &(abfd->tdata.aout_data->a); | |
1811 | unsigned int r_index; | |
1812 | int reloc_entry; | |
1813 | int r_extern; | |
1814 | int r_pcrel; | |
1815 | ||
116c20d2 | 1816 | reloc_entry = GET_WORD (abfd, (void *) bytes); |
e135f41b NC |
1817 | |
1818 | r_pcrel = reloc_entry & RELFLG; | |
1819 | ||
1820 | cache_ptr->address = offset; | |
1821 | cache_ptr->howto = howto_table_pdp11 + (r_pcrel ? 1 : 0); | |
1822 | ||
1823 | if ((reloc_entry & RTYPE) == RABS) | |
1824 | r_index = N_ABS; | |
1825 | else | |
1826 | r_index = RINDEX (reloc_entry); | |
1827 | ||
1828 | /* r_extern reflects whether the symbol the reloc is against is | |
1829 | local or global. */ | |
1830 | r_extern = (reloc_entry & RTYPE) == REXT; | |
1831 | ||
1832 | if (r_extern && r_index > symcount) | |
1833 | { | |
1834 | /* We could arrange to return an error, but it might be useful | |
07d6d2b8 | 1835 | to see the file even if it is bad. */ |
e135f41b NC |
1836 | r_extern = 0; |
1837 | r_index = N_ABS; | |
1838 | } | |
1839 | ||
1840 | MOVE_ADDRESS(0); | |
1841 | } | |
1842 | ||
1843 | /* Read and swap the relocs for a section. */ | |
1844 | ||
b34976b6 | 1845 | bfd_boolean |
116c20d2 | 1846 | NAME (aout, slurp_reloc_table) (bfd *abfd, sec_ptr asect, asymbol **symbols) |
e135f41b | 1847 | { |
9dadfa79 | 1848 | bfd_byte *rptr; |
dc810e39 | 1849 | bfd_size_type count; |
e135f41b | 1850 | bfd_size_type reloc_size; |
116c20d2 | 1851 | void * relocs; |
e135f41b NC |
1852 | arelent *reloc_cache; |
1853 | size_t each_size; | |
1854 | unsigned int counter = 0; | |
1855 | arelent *cache_ptr; | |
1856 | ||
1857 | if (asect->relocation) | |
b34976b6 | 1858 | return TRUE; |
e135f41b NC |
1859 | |
1860 | if (asect->flags & SEC_CONSTRUCTOR) | |
b34976b6 | 1861 | return TRUE; |
e135f41b NC |
1862 | |
1863 | if (asect == obj_datasec (abfd)) | |
1864 | reloc_size = exec_hdr(abfd)->a_drsize; | |
1865 | else if (asect == obj_textsec (abfd)) | |
1866 | reloc_size = exec_hdr(abfd)->a_trsize; | |
1867 | else if (asect == obj_bsssec (abfd)) | |
1868 | reloc_size = 0; | |
1869 | else | |
1870 | { | |
1871 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 1872 | return FALSE; |
e135f41b NC |
1873 | } |
1874 | ||
1875 | if (bfd_seek (abfd, asect->rel_filepos, SEEK_SET) != 0) | |
b34976b6 | 1876 | return FALSE; |
2bb3687b | 1877 | relocs = _bfd_malloc_and_read (abfd, reloc_size, reloc_size); |
e135f41b | 1878 | if (relocs == NULL && reloc_size != 0) |
b34976b6 | 1879 | return FALSE; |
e135f41b | 1880 | |
2bb3687b | 1881 | each_size = obj_reloc_entry_size (abfd); |
e135f41b NC |
1882 | count = reloc_size / each_size; |
1883 | ||
116c20d2 | 1884 | /* Count the number of NON-ZERO relocs, this is the count we want. */ |
e135f41b NC |
1885 | { |
1886 | unsigned int real_count = 0; | |
1887 | ||
1888 | for (counter = 0; counter < count; counter++) | |
1889 | { | |
1890 | int x; | |
1891 | ||
973ffd63 | 1892 | x = GET_WORD (abfd, (char *) relocs + each_size * counter); |
e135f41b NC |
1893 | if (x != 0) |
1894 | real_count++; | |
1895 | } | |
1896 | ||
1897 | count = real_count; | |
1898 | } | |
1899 | ||
116c20d2 | 1900 | reloc_cache = bfd_zmalloc (count * sizeof (arelent)); |
e135f41b | 1901 | if (reloc_cache == NULL && count != 0) |
b34976b6 | 1902 | return FALSE; |
e135f41b NC |
1903 | |
1904 | cache_ptr = reloc_cache; | |
1905 | ||
9dadfa79 | 1906 | rptr = relocs; |
e135f41b NC |
1907 | for (counter = 0; |
1908 | counter < count; | |
9dadfa79 | 1909 | counter++, rptr += RELOC_SIZE, cache_ptr++) |
e135f41b | 1910 | { |
116c20d2 | 1911 | while (GET_WORD (abfd, (void *) rptr) == 0) |
e135f41b | 1912 | { |
9dadfa79 | 1913 | rptr += RELOC_SIZE; |
dc810e39 | 1914 | if ((char *) rptr >= (char *) relocs + reloc_size) |
e135f41b NC |
1915 | goto done; |
1916 | } | |
1917 | ||
1918 | pdp11_aout_swap_reloc_in (abfd, rptr, cache_ptr, | |
dc810e39 AM |
1919 | (bfd_size_type) ((char *) rptr - (char *) relocs), |
1920 | symbols, | |
1921 | (bfd_size_type) bfd_get_symcount (abfd)); | |
e135f41b NC |
1922 | } |
1923 | done: | |
1924 | /* Just in case, if rptr >= relocs + reloc_size should happen | |
116c20d2 | 1925 | too early. */ |
e135f41b NC |
1926 | BFD_ASSERT (counter == count); |
1927 | ||
1928 | free (relocs); | |
1929 | ||
1930 | asect->relocation = reloc_cache; | |
1931 | asect->reloc_count = cache_ptr - reloc_cache; | |
1932 | ||
b34976b6 | 1933 | return TRUE; |
e135f41b NC |
1934 | } |
1935 | ||
1936 | /* Write out a relocation section into an object file. */ | |
1937 | ||
b34976b6 | 1938 | bfd_boolean |
116c20d2 | 1939 | NAME (aout, squirt_out_relocs) (bfd *abfd, asection *section) |
e135f41b NC |
1940 | { |
1941 | arelent **generic; | |
1942 | unsigned char *native; | |
1943 | unsigned int count = section->reloc_count; | |
dc810e39 | 1944 | bfd_size_type natsize; |
e135f41b | 1945 | |
eea6121a | 1946 | natsize = section->size; |
116c20d2 | 1947 | native = bfd_zalloc (abfd, natsize); |
e135f41b | 1948 | if (!native) |
b34976b6 | 1949 | return FALSE; |
e135f41b | 1950 | |
e135f41b NC |
1951 | generic = section->orelocation; |
1952 | if (generic != NULL) | |
1953 | { | |
1954 | while (count > 0) | |
1955 | { | |
9dadfa79 | 1956 | bfd_byte *r; |
e135f41b | 1957 | |
9dadfa79 | 1958 | r = native + (*generic)->address; |
e135f41b NC |
1959 | pdp11_aout_swap_reloc_out (abfd, *generic, r); |
1960 | count--; | |
1961 | generic++; | |
1962 | } | |
1963 | } | |
1964 | ||
116c20d2 | 1965 | if (bfd_bwrite ((void *) native, natsize, abfd) != natsize) |
e135f41b | 1966 | { |
dc810e39 | 1967 | bfd_release (abfd, native); |
b34976b6 | 1968 | return FALSE; |
e135f41b NC |
1969 | } |
1970 | ||
1971 | bfd_release (abfd, native); | |
b34976b6 | 1972 | return TRUE; |
e135f41b NC |
1973 | } |
1974 | ||
116c20d2 NC |
1975 | /* This is stupid. This function should be a boolean predicate. */ |
1976 | ||
e135f41b | 1977 | long |
116c20d2 NC |
1978 | NAME (aout, canonicalize_reloc) (bfd *abfd, |
1979 | sec_ptr section, | |
1980 | arelent **relptr, | |
1981 | asymbol **symbols) | |
e135f41b NC |
1982 | { |
1983 | arelent *tblptr = section->relocation; | |
1984 | unsigned int count; | |
1985 | ||
1986 | if (section == obj_bsssec (abfd)) | |
1987 | { | |
1988 | *relptr = NULL; | |
1989 | return 0; | |
1990 | } | |
1991 | ||
116c20d2 | 1992 | if (!(tblptr || NAME (aout, slurp_reloc_table)(abfd, section, symbols))) |
e135f41b NC |
1993 | return -1; |
1994 | ||
1995 | if (section->flags & SEC_CONSTRUCTOR) | |
1996 | { | |
1997 | arelent_chain *chain = section->constructor_chain; | |
1998 | ||
1999 | for (count = 0; count < section->reloc_count; count ++) | |
2000 | { | |
2001 | *relptr ++ = &chain->relent; | |
2002 | chain = chain->next; | |
2003 | } | |
2004 | } | |
2005 | else | |
2006 | { | |
2007 | tblptr = section->relocation; | |
2008 | ||
2009 | for (count = 0; count++ < section->reloc_count;) | |
2010 | *relptr++ = tblptr++; | |
2011 | } | |
2012 | ||
2013 | *relptr = 0; | |
2014 | ||
2015 | return section->reloc_count; | |
2016 | } | |
2017 | ||
2018 | long | |
116c20d2 | 2019 | NAME (aout, get_reloc_upper_bound) (bfd *abfd, sec_ptr asect) |
e135f41b | 2020 | { |
7a6e0d89 AM |
2021 | bfd_size_type count; |
2022 | ||
e135f41b NC |
2023 | if (bfd_get_format (abfd) != bfd_object) |
2024 | { | |
2025 | bfd_set_error (bfd_error_invalid_operation); | |
2026 | return -1; | |
2027 | } | |
2028 | ||
dc810e39 | 2029 | if (asect->flags & SEC_CONSTRUCTOR) |
7a6e0d89 AM |
2030 | count = asect->reloc_count; |
2031 | else if (asect == obj_datasec (abfd)) | |
2032 | count = exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd); | |
2033 | else if (asect == obj_textsec (abfd)) | |
2034 | count = exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd); | |
2035 | else if (asect == obj_bsssec (abfd)) | |
2036 | count = 0; | |
2037 | else | |
2038 | { | |
2039 | bfd_set_error (bfd_error_invalid_operation); | |
2040 | return -1; | |
2041 | } | |
e135f41b | 2042 | |
7a6e0d89 AM |
2043 | if (count >= LONG_MAX / sizeof (arelent *)) |
2044 | { | |
2045 | bfd_set_error (bfd_error_file_too_big); | |
2046 | return -1; | |
2047 | } | |
2048 | return (count + 1) * sizeof (arelent *); | |
e135f41b NC |
2049 | } |
2050 | ||
2051 | \f | |
2052 | long | |
116c20d2 | 2053 | NAME (aout, get_symtab_upper_bound) (bfd *abfd) |
e135f41b | 2054 | { |
116c20d2 | 2055 | if (!NAME (aout, slurp_symbol_table) (abfd)) |
e135f41b NC |
2056 | return -1; |
2057 | ||
2058 | return (bfd_get_symcount (abfd) + 1) * (sizeof (aout_symbol_type *)); | |
2059 | } | |
2060 | ||
2061 | alent * | |
116c20d2 NC |
2062 | NAME (aout, get_lineno) (bfd * abfd ATTRIBUTE_UNUSED, |
2063 | asymbol * symbol ATTRIBUTE_UNUSED) | |
e135f41b | 2064 | { |
116c20d2 | 2065 | return NULL; |
e135f41b NC |
2066 | } |
2067 | ||
2068 | void | |
116c20d2 NC |
2069 | NAME (aout, get_symbol_info) (bfd * abfd ATTRIBUTE_UNUSED, |
2070 | asymbol *symbol, | |
2071 | symbol_info *ret) | |
e135f41b NC |
2072 | { |
2073 | bfd_symbol_info (symbol, ret); | |
2074 | ||
2075 | if (ret->type == '?') | |
2076 | { | |
2077 | int type_code = aout_symbol(symbol)->type & 0xff; | |
2078 | const char *stab_name = bfd_get_stab_name (type_code); | |
2079 | static char buf[10]; | |
2080 | ||
2081 | if (stab_name == NULL) | |
2082 | { | |
2083 | sprintf(buf, "(%d)", type_code); | |
2084 | stab_name = buf; | |
2085 | } | |
2086 | ret->type = '-'; | |
116c20d2 NC |
2087 | ret->stab_type = type_code; |
2088 | ret->stab_other = (unsigned) (aout_symbol(symbol)->other & 0xff); | |
2089 | ret->stab_desc = (unsigned) (aout_symbol(symbol)->desc & 0xffff); | |
2090 | ret->stab_name = stab_name; | |
e135f41b NC |
2091 | } |
2092 | } | |
2093 | ||
e135f41b | 2094 | void |
116c20d2 NC |
2095 | NAME (aout, print_symbol) (bfd * abfd, |
2096 | void * afile, | |
2097 | asymbol *symbol, | |
2098 | bfd_print_symbol_type how) | |
e135f41b | 2099 | { |
116c20d2 | 2100 | FILE *file = (FILE *) afile; |
e135f41b NC |
2101 | |
2102 | switch (how) | |
2103 | { | |
2104 | case bfd_print_symbol_name: | |
2105 | if (symbol->name) | |
2106 | fprintf(file,"%s", symbol->name); | |
2107 | break; | |
2108 | case bfd_print_symbol_more: | |
116c20d2 NC |
2109 | fprintf(file,"%4x %2x %2x", |
2110 | (unsigned) (aout_symbol (symbol)->desc & 0xffff), | |
2111 | (unsigned) (aout_symbol (symbol)->other & 0xff), | |
2112 | (unsigned) (aout_symbol (symbol)->type)); | |
e135f41b NC |
2113 | break; |
2114 | case bfd_print_symbol_all: | |
2115 | { | |
dc810e39 | 2116 | const char *section_name = symbol->section->name; |
e135f41b | 2117 | |
116c20d2 | 2118 | bfd_print_symbol_vandf (abfd, (void *) file, symbol); |
e135f41b NC |
2119 | |
2120 | fprintf (file," %-5s %04x %02x %02x", | |
2121 | section_name, | |
116c20d2 NC |
2122 | (unsigned) (aout_symbol (symbol)->desc & 0xffff), |
2123 | (unsigned) (aout_symbol (symbol)->other & 0xff), | |
2124 | (unsigned) (aout_symbol (symbol)->type & 0xff)); | |
e135f41b NC |
2125 | if (symbol->name) |
2126 | fprintf(file," %s", symbol->name); | |
2127 | } | |
2128 | break; | |
2129 | } | |
2130 | } | |
2131 | ||
2132 | /* If we don't have to allocate more than 1MB to hold the generic | |
2133 | symbols, we use the generic minisymbol method: it's faster, since | |
2134 | it only translates the symbols once, not multiple times. */ | |
2135 | #define MINISYM_THRESHOLD (1000000 / sizeof (asymbol)) | |
2136 | ||
2137 | /* Read minisymbols. For minisymbols, we use the unmodified a.out | |
2138 | symbols. The minisymbol_to_symbol function translates these into | |
2139 | BFD asymbol structures. */ | |
2140 | ||
2141 | long | |
116c20d2 NC |
2142 | NAME (aout, read_minisymbols) (bfd *abfd, |
2143 | bfd_boolean dynamic, | |
2144 | void * *minisymsp, | |
2145 | unsigned int *sizep) | |
e135f41b NC |
2146 | { |
2147 | if (dynamic) | |
116c20d2 NC |
2148 | /* We could handle the dynamic symbols here as well, but it's |
2149 | easier to hand them off. */ | |
2150 | return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep); | |
e135f41b NC |
2151 | |
2152 | if (! aout_get_external_symbols (abfd)) | |
2153 | return -1; | |
2154 | ||
2155 | if (obj_aout_external_sym_count (abfd) < MINISYM_THRESHOLD) | |
2156 | return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep); | |
2157 | ||
116c20d2 | 2158 | *minisymsp = (void *) obj_aout_external_syms (abfd); |
e135f41b NC |
2159 | |
2160 | /* By passing the external symbols back from this routine, we are | |
2161 | giving up control over the memory block. Clear | |
2162 | obj_aout_external_syms, so that we do not try to free it | |
2163 | ourselves. */ | |
2164 | obj_aout_external_syms (abfd) = NULL; | |
2165 | ||
2166 | *sizep = EXTERNAL_NLIST_SIZE; | |
2167 | return obj_aout_external_sym_count (abfd); | |
2168 | } | |
2169 | ||
2170 | /* Convert a minisymbol to a BFD asymbol. A minisymbol is just an | |
2171 | unmodified a.out symbol. The SYM argument is a structure returned | |
2172 | by bfd_make_empty_symbol, which we fill in here. */ | |
2173 | ||
2174 | asymbol * | |
116c20d2 NC |
2175 | NAME (aout, minisymbol_to_symbol) (bfd *abfd, |
2176 | bfd_boolean dynamic, | |
2177 | const void * minisym, | |
2178 | asymbol *sym) | |
e135f41b NC |
2179 | { |
2180 | if (dynamic | |
2181 | || obj_aout_external_sym_count (abfd) < MINISYM_THRESHOLD) | |
2182 | return _bfd_generic_minisymbol_to_symbol (abfd, dynamic, minisym, sym); | |
2183 | ||
2184 | memset (sym, 0, sizeof (aout_symbol_type)); | |
2185 | ||
2186 | /* We call translate_symbol_table to translate a single symbol. */ | |
116c20d2 | 2187 | if (! (NAME (aout, translate_symbol_table) |
e135f41b NC |
2188 | (abfd, |
2189 | (aout_symbol_type *) sym, | |
2190 | (struct external_nlist *) minisym, | |
2191 | (bfd_size_type) 1, | |
2192 | obj_aout_external_strings (abfd), | |
2193 | obj_aout_external_string_size (abfd), | |
b34976b6 | 2194 | FALSE))) |
e135f41b NC |
2195 | return NULL; |
2196 | ||
2197 | return sym; | |
2198 | } | |
2199 | ||
116c20d2 NC |
2200 | /* Provided a BFD, a section and an offset into the section, calculate |
2201 | and return the name of the source file and the line nearest to the | |
2202 | wanted location. */ | |
e135f41b | 2203 | |
b34976b6 | 2204 | bfd_boolean |
116c20d2 | 2205 | NAME (aout, find_nearest_line) (bfd *abfd, |
116c20d2 | 2206 | asymbol **symbols, |
fb167eb2 | 2207 | asection *section, |
116c20d2 NC |
2208 | bfd_vma offset, |
2209 | const char **filename_ptr, | |
2210 | const char **functionname_ptr, | |
fb167eb2 AM |
2211 | unsigned int *line_ptr, |
2212 | unsigned int *discriminator_ptr) | |
e135f41b | 2213 | { |
116c20d2 | 2214 | /* Run down the file looking for the filename, function and linenumber. */ |
e135f41b | 2215 | asymbol **p; |
dc810e39 AM |
2216 | const char *directory_name = NULL; |
2217 | const char *main_file_name = NULL; | |
2218 | const char *current_file_name = NULL; | |
116c20d2 | 2219 | const char *line_file_name = NULL; /* Value of current_file_name at line number. */ |
e135f41b NC |
2220 | bfd_vma low_line_vma = 0; |
2221 | bfd_vma low_func_vma = 0; | |
2222 | asymbol *func = 0; | |
2223 | size_t filelen, funclen; | |
2224 | char *buf; | |
2225 | ||
2226 | *filename_ptr = abfd->filename; | |
2227 | *functionname_ptr = 0; | |
2228 | *line_ptr = 0; | |
fb167eb2 AM |
2229 | if (discriminator_ptr) |
2230 | *discriminator_ptr = 0; | |
e135f41b | 2231 | |
116c20d2 | 2232 | if (symbols != NULL) |
e135f41b NC |
2233 | { |
2234 | for (p = symbols; *p; p++) | |
2235 | { | |
2236 | aout_symbol_type *q = (aout_symbol_type *)(*p); | |
2237 | next: | |
2238 | switch (q->type) | |
2239 | { | |
2240 | case N_TEXT: | |
2241 | /* If this looks like a file name symbol, and it comes after | |
2242 | the line number we have found so far, but before the | |
2243 | offset, then we have probably not found the right line | |
2244 | number. */ | |
2245 | if (q->symbol.value <= offset | |
2246 | && ((q->symbol.value > low_line_vma | |
2247 | && (line_file_name != NULL | |
2248 | || *line_ptr != 0)) | |
2249 | || (q->symbol.value > low_func_vma | |
2250 | && func != NULL))) | |
2251 | { | |
2252 | const char * symname; | |
2253 | ||
2254 | symname = q->symbol.name; | |
2255 | if (strcmp (symname + strlen (symname) - 2, ".o") == 0) | |
2256 | { | |
2257 | if (q->symbol.value > low_line_vma) | |
2258 | { | |
2259 | *line_ptr = 0; | |
2260 | line_file_name = NULL; | |
2261 | } | |
2262 | if (q->symbol.value > low_func_vma) | |
2263 | func = NULL; | |
2264 | } | |
2265 | } | |
2266 | break; | |
2267 | ||
2268 | case N_SO: | |
2269 | /* If this symbol is less than the offset, but greater than | |
2270 | the line number we have found so far, then we have not | |
2271 | found the right line number. */ | |
2272 | if (q->symbol.value <= offset) | |
2273 | { | |
2274 | if (q->symbol.value > low_line_vma) | |
2275 | { | |
2276 | *line_ptr = 0; | |
2277 | line_file_name = NULL; | |
2278 | } | |
2279 | if (q->symbol.value > low_func_vma) | |
2280 | func = NULL; | |
2281 | } | |
2282 | ||
2283 | main_file_name = current_file_name = q->symbol.name; | |
116c20d2 | 2284 | /* Look ahead to next symbol to check if that too is an N_SO. */ |
e135f41b NC |
2285 | p++; |
2286 | if (*p == NULL) | |
2287 | break; | |
2288 | q = (aout_symbol_type *)(*p); | |
116c20d2 | 2289 | if (q->type != (int) N_SO) |
e135f41b NC |
2290 | goto next; |
2291 | ||
116c20d2 | 2292 | /* Found a second N_SO First is directory; second is filename. */ |
e135f41b NC |
2293 | directory_name = current_file_name; |
2294 | main_file_name = current_file_name = q->symbol.name; | |
2295 | if (obj_textsec(abfd) != section) | |
2296 | goto done; | |
2297 | break; | |
2298 | case N_SOL: | |
2299 | current_file_name = q->symbol.name; | |
2300 | break; | |
2301 | ||
2302 | case N_SLINE: | |
2303 | case N_DSLINE: | |
2304 | case N_BSLINE: | |
2305 | /* We'll keep this if it resolves nearer than the one we have | |
2306 | already. */ | |
2307 | if (q->symbol.value >= low_line_vma | |
2308 | && q->symbol.value <= offset) | |
2309 | { | |
2310 | *line_ptr = q->desc; | |
2311 | low_line_vma = q->symbol.value; | |
2312 | line_file_name = current_file_name; | |
2313 | } | |
2314 | break; | |
2315 | ||
2316 | case N_FUN: | |
2317 | { | |
116c20d2 | 2318 | /* We'll keep this if it is nearer than the one we have already. */ |
e135f41b NC |
2319 | if (q->symbol.value >= low_func_vma && |
2320 | q->symbol.value <= offset) | |
2321 | { | |
2322 | low_func_vma = q->symbol.value; | |
116c20d2 | 2323 | func = (asymbol *) q; |
e135f41b NC |
2324 | } |
2325 | else if (q->symbol.value > offset) | |
2326 | goto done; | |
2327 | } | |
2328 | break; | |
2329 | } | |
2330 | } | |
2331 | } | |
2332 | ||
2333 | done: | |
2334 | if (*line_ptr != 0) | |
2335 | main_file_name = line_file_name; | |
2336 | ||
2337 | if (main_file_name == NULL | |
2338 | || main_file_name[0] == '/' | |
2339 | || directory_name == NULL) | |
2340 | filelen = 0; | |
2341 | else | |
2342 | filelen = strlen (directory_name) + strlen (main_file_name); | |
2343 | if (func == NULL) | |
2344 | funclen = 0; | |
2345 | else | |
2346 | funclen = strlen (bfd_asymbol_name (func)); | |
2347 | ||
2348 | if (adata (abfd).line_buf != NULL) | |
2349 | free (adata (abfd).line_buf); | |
2350 | if (filelen + funclen == 0) | |
2351 | adata (abfd).line_buf = buf = NULL; | |
2352 | else | |
2353 | { | |
116c20d2 | 2354 | buf = bfd_malloc ((bfd_size_type) filelen + funclen + 3); |
e135f41b NC |
2355 | adata (abfd).line_buf = buf; |
2356 | if (buf == NULL) | |
b34976b6 | 2357 | return FALSE; |
e135f41b NC |
2358 | } |
2359 | ||
2360 | if (main_file_name != NULL) | |
2361 | { | |
2362 | if (main_file_name[0] == '/' || directory_name == NULL) | |
2363 | *filename_ptr = main_file_name; | |
2364 | else | |
2365 | { | |
2366 | sprintf (buf, "%s%s", directory_name, main_file_name); | |
2367 | *filename_ptr = buf; | |
2368 | buf += filelen + 1; | |
2369 | } | |
2370 | } | |
2371 | ||
2372 | if (func) | |
2373 | { | |
2374 | const char *function = func->name; | |
dc810e39 | 2375 | char *colon; |
e135f41b NC |
2376 | |
2377 | /* The caller expects a symbol name. We actually have a | |
2378 | function name, without the leading underscore. Put the | |
2379 | underscore back in, so that the caller gets a symbol name. */ | |
2380 | if (bfd_get_symbol_leading_char (abfd) == '\0') | |
2381 | strcpy (buf, function); | |
2382 | else | |
2383 | { | |
2384 | buf[0] = bfd_get_symbol_leading_char (abfd); | |
2385 | strcpy (buf + 1, function); | |
2386 | } | |
2387 | ||
2388 | /* Have to remove : stuff. */ | |
dc810e39 AM |
2389 | colon = strchr (buf, ':'); |
2390 | if (colon != NULL) | |
2391 | *colon = '\0'; | |
e135f41b NC |
2392 | *functionname_ptr = buf; |
2393 | } | |
2394 | ||
b34976b6 | 2395 | return TRUE; |
e135f41b NC |
2396 | } |
2397 | ||
2398 | int | |
a6b96beb AM |
2399 | NAME (aout, sizeof_headers) (bfd *abfd, |
2400 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
e135f41b | 2401 | { |
116c20d2 | 2402 | return adata (abfd).exec_bytes_size; |
e135f41b NC |
2403 | } |
2404 | ||
2405 | /* Free all information we have cached for this BFD. We can always | |
2406 | read it again later if we need it. */ | |
2407 | ||
b34976b6 | 2408 | bfd_boolean |
116c20d2 | 2409 | NAME (aout, bfd_free_cached_info) (bfd *abfd) |
e135f41b NC |
2410 | { |
2411 | asection *o; | |
2412 | ||
2413 | if (bfd_get_format (abfd) != bfd_object) | |
b34976b6 | 2414 | return TRUE; |
e135f41b NC |
2415 | |
2416 | #define BFCI_FREE(x) if (x != NULL) { free (x); x = NULL; } | |
2417 | BFCI_FREE (obj_aout_symbols (abfd)); | |
116c20d2 | 2418 | |
e135f41b NC |
2419 | #ifdef USE_MMAP |
2420 | obj_aout_external_syms (abfd) = 0; | |
2421 | bfd_free_window (&obj_aout_sym_window (abfd)); | |
2422 | bfd_free_window (&obj_aout_string_window (abfd)); | |
2423 | obj_aout_external_strings (abfd) = 0; | |
2424 | #else | |
2425 | BFCI_FREE (obj_aout_external_syms (abfd)); | |
2426 | BFCI_FREE (obj_aout_external_strings (abfd)); | |
2427 | #endif | |
116c20d2 | 2428 | for (o = abfd->sections; o != NULL; o = o->next) |
e135f41b NC |
2429 | BFCI_FREE (o->relocation); |
2430 | #undef BFCI_FREE | |
2431 | ||
b34976b6 | 2432 | return TRUE; |
e135f41b NC |
2433 | } |
2434 | \f | |
e135f41b NC |
2435 | /* Routine to create an entry in an a.out link hash table. */ |
2436 | ||
2437 | struct bfd_hash_entry * | |
116c20d2 NC |
2438 | NAME (aout, link_hash_newfunc) (struct bfd_hash_entry *entry, |
2439 | struct bfd_hash_table *table, | |
2440 | const char *string) | |
e135f41b NC |
2441 | { |
2442 | struct aout_link_hash_entry *ret = (struct aout_link_hash_entry *) entry; | |
2443 | ||
2444 | /* Allocate the structure if it has not already been allocated by a | |
2445 | subclass. */ | |
116c20d2 NC |
2446 | if (ret == NULL) |
2447 | ret = bfd_hash_allocate (table, sizeof (* ret)); | |
2448 | if (ret == NULL) | |
2449 | return NULL; | |
e135f41b NC |
2450 | |
2451 | /* Call the allocation method of the superclass. */ | |
116c20d2 NC |
2452 | ret = (struct aout_link_hash_entry *) |
2453 | _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret, table, string); | |
e135f41b NC |
2454 | if (ret) |
2455 | { | |
2456 | /* Set local fields. */ | |
b34976b6 | 2457 | ret->written = FALSE; |
e135f41b NC |
2458 | ret->indx = -1; |
2459 | } | |
2460 | ||
2461 | return (struct bfd_hash_entry *) ret; | |
2462 | } | |
2463 | ||
2464 | /* Initialize an a.out link hash table. */ | |
2465 | ||
b34976b6 | 2466 | bfd_boolean |
116c20d2 NC |
2467 | NAME (aout, link_hash_table_init) (struct aout_link_hash_table *table, |
2468 | bfd *abfd, | |
2469 | struct bfd_hash_entry *(*newfunc) (struct bfd_hash_entry *, | |
2470 | struct bfd_hash_table *, | |
66eb6687 AM |
2471 | const char *), |
2472 | unsigned int entsize) | |
e135f41b | 2473 | { |
66eb6687 | 2474 | return _bfd_link_hash_table_init (&table->root, abfd, newfunc, entsize); |
e135f41b NC |
2475 | } |
2476 | ||
2477 | /* Create an a.out link hash table. */ | |
2478 | ||
2479 | struct bfd_link_hash_table * | |
116c20d2 | 2480 | NAME (aout, link_hash_table_create) (bfd *abfd) |
e135f41b NC |
2481 | { |
2482 | struct aout_link_hash_table *ret; | |
986f0783 | 2483 | size_t amt = sizeof (struct aout_link_hash_table); |
e135f41b | 2484 | |
22cdc249 | 2485 | ret = bfd_malloc (amt); |
e135f41b | 2486 | if (ret == NULL) |
116c20d2 NC |
2487 | return NULL; |
2488 | if (! NAME (aout, link_hash_table_init) (ret, abfd, | |
66eb6687 AM |
2489 | NAME (aout, link_hash_newfunc), |
2490 | sizeof (struct aout_link_hash_entry))) | |
e135f41b NC |
2491 | { |
2492 | free (ret); | |
116c20d2 | 2493 | return NULL; |
e135f41b NC |
2494 | } |
2495 | return &ret->root; | |
2496 | } | |
2497 | ||
116c20d2 NC |
2498 | /* Free up the internal symbols read from an a.out file. */ |
2499 | ||
2500 | static bfd_boolean | |
2501 | aout_link_free_symbols (bfd *abfd) | |
2502 | { | |
2503 | if (obj_aout_external_syms (abfd) != NULL) | |
2504 | { | |
2505 | #ifdef USE_MMAP | |
2506 | bfd_free_window (&obj_aout_sym_window (abfd)); | |
2507 | #else | |
2508 | free ((void *) obj_aout_external_syms (abfd)); | |
2509 | #endif | |
2510 | obj_aout_external_syms (abfd) = NULL; | |
2511 | } | |
2512 | ||
2513 | if (obj_aout_external_strings (abfd) != NULL) | |
2514 | { | |
2515 | #ifdef USE_MMAP | |
2516 | bfd_free_window (&obj_aout_string_window (abfd)); | |
2517 | #else | |
2518 | free ((void *) obj_aout_external_strings (abfd)); | |
2519 | #endif | |
2520 | obj_aout_external_strings (abfd) = NULL; | |
2521 | } | |
2522 | return TRUE; | |
2523 | } | |
2524 | ||
e135f41b NC |
2525 | /* Given an a.out BFD, add symbols to the global hash table as |
2526 | appropriate. */ | |
2527 | ||
b34976b6 | 2528 | bfd_boolean |
116c20d2 | 2529 | NAME (aout, link_add_symbols) (bfd *abfd, struct bfd_link_info *info) |
e135f41b NC |
2530 | { |
2531 | switch (bfd_get_format (abfd)) | |
2532 | { | |
2533 | case bfd_object: | |
2534 | return aout_link_add_object_symbols (abfd, info); | |
2535 | case bfd_archive: | |
2536 | return _bfd_generic_link_add_archive_symbols | |
2537 | (abfd, info, aout_link_check_archive_element); | |
2538 | default: | |
2539 | bfd_set_error (bfd_error_wrong_format); | |
b34976b6 | 2540 | return FALSE; |
e135f41b NC |
2541 | } |
2542 | } | |
2543 | ||
2544 | /* Add symbols from an a.out object file. */ | |
2545 | ||
b34976b6 | 2546 | static bfd_boolean |
116c20d2 | 2547 | aout_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info) |
e135f41b NC |
2548 | { |
2549 | if (! aout_get_external_symbols (abfd)) | |
b34976b6 | 2550 | return FALSE; |
e135f41b | 2551 | if (! aout_link_add_symbols (abfd, info)) |
b34976b6 | 2552 | return FALSE; |
e135f41b NC |
2553 | if (! info->keep_memory) |
2554 | { | |
2555 | if (! aout_link_free_symbols (abfd)) | |
b34976b6 | 2556 | return FALSE; |
e135f41b | 2557 | } |
b34976b6 | 2558 | return TRUE; |
e135f41b NC |
2559 | } |
2560 | ||
e135f41b NC |
2561 | /* Look through the internal symbols to see if this object file should |
2562 | be included in the link. We should include this object file if it | |
2563 | defines any symbols which are currently undefined. If this object | |
2564 | file defines a common symbol, then we may adjust the size of the | |
2565 | known symbol but we do not include the object file in the link | |
2566 | (unless there is some other reason to include it). */ | |
2567 | ||
b34976b6 | 2568 | static bfd_boolean |
116c20d2 NC |
2569 | aout_link_check_ar_symbols (bfd *abfd, |
2570 | struct bfd_link_info *info, | |
5d3236ee DK |
2571 | bfd_boolean *pneeded, |
2572 | bfd **subsbfd) | |
e135f41b | 2573 | { |
116c20d2 | 2574 | struct external_nlist *p; |
e135f41b NC |
2575 | struct external_nlist *pend; |
2576 | char *strings; | |
2577 | ||
b34976b6 | 2578 | *pneeded = FALSE; |
e135f41b NC |
2579 | |
2580 | /* Look through all the symbols. */ | |
2581 | p = obj_aout_external_syms (abfd); | |
2582 | pend = p + obj_aout_external_sym_count (abfd); | |
2583 | strings = obj_aout_external_strings (abfd); | |
2584 | for (; p < pend; p++) | |
2585 | { | |
dc810e39 | 2586 | int type = H_GET_8 (abfd, p->e_type); |
e135f41b NC |
2587 | const char *name; |
2588 | struct bfd_link_hash_entry *h; | |
2589 | ||
2590 | /* Ignore symbols that are not externally visible. This is an | |
2591 | optimization only, as we check the type more thoroughly | |
2592 | below. */ | |
2593 | if ((type & N_EXT) == 0 | |
2594 | || type == N_FN) | |
2595 | continue; | |
2596 | ||
2597 | name = strings + GET_WORD (abfd, p->e_strx); | |
b34976b6 | 2598 | h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE); |
e135f41b NC |
2599 | |
2600 | /* We are only interested in symbols that are currently | |
2601 | undefined or common. */ | |
116c20d2 | 2602 | if (h == NULL |
e135f41b NC |
2603 | || (h->type != bfd_link_hash_undefined |
2604 | && h->type != bfd_link_hash_common)) | |
2605 | continue; | |
2606 | ||
2607 | if (type == (N_TEXT | N_EXT) | |
2608 | || type == (N_DATA | N_EXT) | |
2609 | || type == (N_BSS | N_EXT) | |
2610 | || type == (N_ABS | N_EXT)) | |
2611 | { | |
2612 | /* This object file defines this symbol. We must link it | |
2613 | in. This is true regardless of whether the current | |
2614 | definition of the symbol is undefined or common. If the | |
2615 | current definition is common, we have a case in which we | |
2616 | have already seen an object file including | |
07d6d2b8 | 2617 | int a; |
e135f41b | 2618 | and this object file from the archive includes |
07d6d2b8 | 2619 | int a = 5; |
e135f41b NC |
2620 | In such a case we must include this object file. |
2621 | ||
2622 | FIXME: The SunOS 4.1.3 linker will pull in the archive | |
2623 | element if the symbol is defined in the .data section, | |
2624 | but not if it is defined in the .text section. That | |
2625 | seems a bit crazy to me, and I haven't implemented it. | |
2626 | However, it might be correct. */ | |
0e144ba7 AM |
2627 | if (!(*info->callbacks |
2628 | ->add_archive_element) (info, abfd, name, subsbfd)) | |
b95a0a31 | 2629 | continue; |
b34976b6 AM |
2630 | *pneeded = TRUE; |
2631 | return TRUE; | |
e135f41b NC |
2632 | } |
2633 | ||
2634 | if (type == (N_UNDF | N_EXT)) | |
2635 | { | |
2636 | bfd_vma value; | |
2637 | ||
2638 | value = GET_WORD (abfd, p->e_value); | |
2639 | if (value != 0) | |
2640 | { | |
2641 | /* This symbol is common in the object from the archive | |
2642 | file. */ | |
2643 | if (h->type == bfd_link_hash_undefined) | |
2644 | { | |
2645 | bfd *symbfd; | |
2646 | unsigned int power; | |
2647 | ||
2648 | symbfd = h->u.undef.abfd; | |
116c20d2 | 2649 | if (symbfd == NULL) |
e135f41b NC |
2650 | { |
2651 | /* This symbol was created as undefined from | |
2652 | outside BFD. We assume that we should link | |
2653 | in the object file. This is done for the -u | |
2654 | option in the linker. */ | |
0e144ba7 AM |
2655 | if (!(*info->callbacks |
2656 | ->add_archive_element) (info, abfd, name, subsbfd)) | |
b34976b6 AM |
2657 | return FALSE; |
2658 | *pneeded = TRUE; | |
2659 | return TRUE; | |
e135f41b NC |
2660 | } |
2661 | /* Turn the current link symbol into a common | |
2662 | symbol. It is already on the undefs list. */ | |
2663 | h->type = bfd_link_hash_common; | |
116c20d2 NC |
2664 | h->u.c.p = bfd_hash_allocate (&info->hash->table, |
2665 | sizeof (struct bfd_link_hash_common_entry)); | |
e135f41b | 2666 | if (h->u.c.p == NULL) |
b34976b6 | 2667 | return FALSE; |
e135f41b NC |
2668 | |
2669 | h->u.c.size = value; | |
2670 | ||
2671 | /* FIXME: This isn't quite right. The maximum | |
2672 | alignment of a common symbol should be set by the | |
2673 | architecture of the output file, not of the input | |
2674 | file. */ | |
2675 | power = bfd_log2 (value); | |
2676 | if (power > bfd_get_arch_info (abfd)->section_align_power) | |
2677 | power = bfd_get_arch_info (abfd)->section_align_power; | |
2678 | h->u.c.p->alignment_power = power; | |
2679 | ||
2680 | h->u.c.p->section = bfd_make_section_old_way (symbfd, | |
2681 | "COMMON"); | |
2682 | } | |
2683 | else | |
2684 | { | |
2685 | /* Adjust the size of the common symbol if | |
2686 | necessary. */ | |
2687 | if (value > h->u.c.size) | |
2688 | h->u.c.size = value; | |
2689 | } | |
2690 | } | |
2691 | } | |
2692 | } | |
2693 | ||
2694 | /* We do not need this object file. */ | |
b34976b6 | 2695 | return TRUE; |
e135f41b NC |
2696 | } |
2697 | ||
116c20d2 NC |
2698 | /* Check a single archive element to see if we need to include it in |
2699 | the link. *PNEEDED is set according to whether this element is | |
2700 | needed in the link or not. This is called from | |
2701 | _bfd_generic_link_add_archive_symbols. */ | |
2702 | ||
2703 | static bfd_boolean | |
2704 | aout_link_check_archive_element (bfd *abfd, | |
2705 | struct bfd_link_info *info, | |
13e570f8 AM |
2706 | struct bfd_link_hash_entry *h ATTRIBUTE_UNUSED, |
2707 | const char *name ATTRIBUTE_UNUSED, | |
116c20d2 NC |
2708 | bfd_boolean *pneeded) |
2709 | { | |
0e144ba7 AM |
2710 | bfd *oldbfd; |
2711 | bfd_boolean needed; | |
5d3236ee | 2712 | |
0e144ba7 | 2713 | if (!aout_get_external_symbols (abfd)) |
116c20d2 NC |
2714 | return FALSE; |
2715 | ||
0e144ba7 AM |
2716 | oldbfd = abfd; |
2717 | if (!aout_link_check_ar_symbols (abfd, info, pneeded, &abfd)) | |
116c20d2 NC |
2718 | return FALSE; |
2719 | ||
0e144ba7 AM |
2720 | needed = *pneeded; |
2721 | if (needed) | |
116c20d2 | 2722 | { |
5d3236ee DK |
2723 | /* Potentially, the add_archive_element hook may have set a |
2724 | substitute BFD for us. */ | |
0e144ba7 AM |
2725 | if (abfd != oldbfd) |
2726 | { | |
2727 | if (!info->keep_memory | |
2728 | && !aout_link_free_symbols (oldbfd)) | |
2729 | return FALSE; | |
2730 | if (!aout_get_external_symbols (abfd)) | |
2731 | return FALSE; | |
2732 | } | |
2733 | if (!aout_link_add_symbols (abfd, info)) | |
116c20d2 NC |
2734 | return FALSE; |
2735 | } | |
2736 | ||
0e144ba7 | 2737 | if (!info->keep_memory || !needed) |
116c20d2 | 2738 | { |
0e144ba7 | 2739 | if (!aout_link_free_symbols (abfd)) |
116c20d2 NC |
2740 | return FALSE; |
2741 | } | |
2742 | ||
2743 | return TRUE; | |
2744 | } | |
2745 | ||
e135f41b NC |
2746 | /* Add all symbols from an object file to the hash table. */ |
2747 | ||
b34976b6 | 2748 | static bfd_boolean |
116c20d2 | 2749 | aout_link_add_symbols (bfd *abfd, struct bfd_link_info *info) |
e135f41b | 2750 | { |
b34976b6 | 2751 | bfd_boolean (*add_one_symbol) |
116c20d2 NC |
2752 | (struct bfd_link_info *, bfd *, const char *, flagword, asection *, |
2753 | bfd_vma, const char *, bfd_boolean, bfd_boolean, | |
2754 | struct bfd_link_hash_entry **); | |
e135f41b NC |
2755 | struct external_nlist *syms; |
2756 | bfd_size_type sym_count; | |
2757 | char *strings; | |
b34976b6 | 2758 | bfd_boolean copy; |
e135f41b | 2759 | struct aout_link_hash_entry **sym_hash; |
116c20d2 | 2760 | struct external_nlist *p; |
e135f41b NC |
2761 | struct external_nlist *pend; |
2762 | ||
2763 | syms = obj_aout_external_syms (abfd); | |
2764 | sym_count = obj_aout_external_sym_count (abfd); | |
2765 | strings = obj_aout_external_strings (abfd); | |
2766 | if (info->keep_memory) | |
b34976b6 | 2767 | copy = FALSE; |
e135f41b | 2768 | else |
b34976b6 | 2769 | copy = TRUE; |
e135f41b NC |
2770 | |
2771 | if (aout_backend_info (abfd)->add_dynamic_symbols != NULL) | |
2772 | { | |
2773 | if (! ((*aout_backend_info (abfd)->add_dynamic_symbols) | |
2774 | (abfd, info, &syms, &sym_count, &strings))) | |
b34976b6 | 2775 | return FALSE; |
e135f41b NC |
2776 | } |
2777 | ||
2778 | /* We keep a list of the linker hash table entries that correspond | |
2779 | to particular symbols. We could just look them up in the hash | |
2780 | table, but keeping the list is more efficient. Perhaps this | |
2781 | should be conditional on info->keep_memory. */ | |
116c20d2 NC |
2782 | sym_hash = bfd_alloc (abfd, |
2783 | sym_count * sizeof (struct aout_link_hash_entry *)); | |
e135f41b | 2784 | if (sym_hash == NULL && sym_count != 0) |
b34976b6 | 2785 | return FALSE; |
e135f41b NC |
2786 | obj_aout_sym_hashes (abfd) = sym_hash; |
2787 | ||
2788 | add_one_symbol = aout_backend_info (abfd)->add_one_symbol; | |
2789 | if (add_one_symbol == NULL) | |
2790 | add_one_symbol = _bfd_generic_link_add_one_symbol; | |
2791 | ||
2792 | p = syms; | |
2793 | pend = p + sym_count; | |
2794 | for (; p < pend; p++, sym_hash++) | |
2795 | { | |
2796 | int type; | |
2797 | const char *name; | |
2798 | bfd_vma value; | |
2799 | asection *section; | |
2800 | flagword flags; | |
2801 | const char *string; | |
2802 | ||
2803 | *sym_hash = NULL; | |
2804 | ||
dc810e39 | 2805 | type = H_GET_8 (abfd, p->e_type); |
e135f41b | 2806 | |
e135f41b NC |
2807 | name = strings + GET_WORD (abfd, p->e_strx); |
2808 | value = GET_WORD (abfd, p->e_value); | |
2809 | flags = BSF_GLOBAL; | |
2810 | string = NULL; | |
2811 | switch (type) | |
2812 | { | |
2813 | default: | |
0c98115d PK |
2814 | /* Anything else should be a debugging symbol. */ |
2815 | BFD_ASSERT ((type & N_STAB) != 0); | |
2816 | continue; | |
e135f41b NC |
2817 | |
2818 | case N_UNDF: | |
2819 | case N_ABS: | |
2820 | case N_TEXT: | |
2821 | case N_DATA: | |
2822 | case N_BSS: | |
2823 | case N_REG: | |
2824 | case N_FN: | |
2825 | /* Ignore symbols that are not externally visible. */ | |
2826 | continue; | |
2827 | ||
2828 | case N_UNDF | N_EXT: | |
2829 | if (value == 0) | |
2830 | { | |
2831 | section = bfd_und_section_ptr; | |
2832 | flags = 0; | |
2833 | } | |
2834 | else | |
2835 | section = bfd_com_section_ptr; | |
2836 | break; | |
2837 | case N_ABS | N_EXT: | |
2838 | section = bfd_abs_section_ptr; | |
2839 | break; | |
2840 | case N_TEXT | N_EXT: | |
2841 | section = obj_textsec (abfd); | |
fd361982 | 2842 | value -= bfd_section_vma (section); |
e135f41b NC |
2843 | break; |
2844 | case N_DATA | N_EXT: | |
2845 | /* Treat N_SETV symbols as N_DATA symbol; see comment in | |
2846 | translate_from_native_sym_flags. */ | |
2847 | section = obj_datasec (abfd); | |
fd361982 | 2848 | value -= bfd_section_vma (section); |
e135f41b NC |
2849 | break; |
2850 | case N_BSS | N_EXT: | |
2851 | section = obj_bsssec (abfd); | |
fd361982 | 2852 | value -= bfd_section_vma (section); |
e135f41b NC |
2853 | break; |
2854 | } | |
2855 | ||
2856 | if (! ((*add_one_symbol) | |
b34976b6 | 2857 | (info, abfd, name, flags, section, value, string, copy, FALSE, |
e135f41b | 2858 | (struct bfd_link_hash_entry **) sym_hash))) |
b34976b6 | 2859 | return FALSE; |
e135f41b NC |
2860 | |
2861 | /* Restrict the maximum alignment of a common symbol based on | |
2862 | the architecture, since a.out has no way to represent | |
2863 | alignment requirements of a section in a .o file. FIXME: | |
2864 | This isn't quite right: it should use the architecture of the | |
2865 | output file, not the input files. */ | |
2866 | if ((*sym_hash)->root.type == bfd_link_hash_common | |
2867 | && ((*sym_hash)->root.u.c.p->alignment_power > | |
2868 | bfd_get_arch_info (abfd)->section_align_power)) | |
2869 | (*sym_hash)->root.u.c.p->alignment_power = | |
2870 | bfd_get_arch_info (abfd)->section_align_power; | |
2871 | ||
2872 | /* If this is a set symbol, and we are not building sets, then | |
2873 | it is possible for the hash entry to not have been set. In | |
2874 | such a case, treat the symbol as not globally defined. */ | |
2875 | if ((*sym_hash)->root.type == bfd_link_hash_new) | |
2876 | { | |
2877 | BFD_ASSERT ((flags & BSF_CONSTRUCTOR) != 0); | |
2878 | *sym_hash = NULL; | |
2879 | } | |
2880 | } | |
2881 | ||
b34976b6 | 2882 | return TRUE; |
e135f41b NC |
2883 | } |
2884 | \f | |
116c20d2 | 2885 | /* Look up an entry in an the header file hash table. */ |
e135f41b NC |
2886 | |
2887 | #define aout_link_includes_lookup(table, string, create, copy) \ | |
2888 | ((struct aout_link_includes_entry *) \ | |
2889 | bfd_hash_lookup (&(table)->root, (string), (create), (copy))) | |
2890 | ||
e135f41b NC |
2891 | /* The function to create a new entry in the header file hash table. */ |
2892 | ||
2893 | static struct bfd_hash_entry * | |
116c20d2 NC |
2894 | aout_link_includes_newfunc (struct bfd_hash_entry *entry, |
2895 | struct bfd_hash_table *table, | |
2896 | const char *string) | |
e135f41b | 2897 | { |
116c20d2 | 2898 | struct aout_link_includes_entry * ret = |
e135f41b NC |
2899 | (struct aout_link_includes_entry *) entry; |
2900 | ||
2901 | /* Allocate the structure if it has not already been allocated by a | |
2902 | subclass. */ | |
116c20d2 NC |
2903 | if (ret == NULL) |
2904 | ret = bfd_hash_allocate (table, | |
2905 | sizeof (struct aout_link_includes_entry)); | |
2906 | if (ret == NULL) | |
2907 | return NULL; | |
e135f41b NC |
2908 | |
2909 | /* Call the allocation method of the superclass. */ | |
2910 | ret = ((struct aout_link_includes_entry *) | |
2911 | bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string)); | |
2912 | if (ret) | |
116c20d2 NC |
2913 | /* Set local fields. */ |
2914 | ret->totals = NULL; | |
e135f41b NC |
2915 | |
2916 | return (struct bfd_hash_entry *) ret; | |
2917 | } | |
2918 | ||
116c20d2 | 2919 | static bfd_boolean |
7686d77d | 2920 | aout_link_write_other_symbol (struct bfd_hash_entry *bh, void *data) |
e135f41b | 2921 | { |
7686d77d | 2922 | struct aout_link_hash_entry *h = (struct aout_link_hash_entry *) bh; |
57402f1e | 2923 | struct aout_final_link_info *flaginfo = (struct aout_final_link_info *) data; |
116c20d2 NC |
2924 | bfd *output_bfd; |
2925 | int type; | |
2926 | bfd_vma val; | |
2927 | struct external_nlist outsym; | |
2928 | bfd_size_type indx; | |
986f0783 | 2929 | size_t amt; |
e135f41b | 2930 | |
116c20d2 NC |
2931 | if (h->root.type == bfd_link_hash_warning) |
2932 | { | |
2933 | h = (struct aout_link_hash_entry *) h->root.u.i.link; | |
2934 | if (h->root.type == bfd_link_hash_new) | |
2935 | return TRUE; | |
2936 | } | |
e135f41b | 2937 | |
57402f1e | 2938 | output_bfd = flaginfo->output_bfd; |
e135f41b | 2939 | |
116c20d2 | 2940 | if (aout_backend_info (output_bfd)->write_dynamic_symbol != NULL) |
e135f41b | 2941 | { |
116c20d2 | 2942 | if (! ((*aout_backend_info (output_bfd)->write_dynamic_symbol) |
57402f1e | 2943 | (output_bfd, flaginfo->info, h))) |
e135f41b | 2944 | { |
116c20d2 NC |
2945 | /* FIXME: No way to handle errors. */ |
2946 | abort (); | |
e135f41b | 2947 | } |
116c20d2 | 2948 | } |
e135f41b | 2949 | |
116c20d2 NC |
2950 | if (h->written) |
2951 | return TRUE; | |
e135f41b | 2952 | |
116c20d2 | 2953 | h->written = TRUE; |
e135f41b | 2954 | |
116c20d2 NC |
2955 | /* An indx of -2 means the symbol must be written. */ |
2956 | if (h->indx != -2 | |
57402f1e NC |
2957 | && (flaginfo->info->strip == strip_all |
2958 | || (flaginfo->info->strip == strip_some | |
2959 | && bfd_hash_lookup (flaginfo->info->keep_hash, h->root.root.string, | |
116c20d2 NC |
2960 | FALSE, FALSE) == NULL))) |
2961 | return TRUE; | |
e135f41b | 2962 | |
116c20d2 | 2963 | switch (h->root.type) |
e135f41b | 2964 | { |
116c20d2 NC |
2965 | default: |
2966 | abort (); | |
2967 | /* Avoid variable not initialized warnings. */ | |
2968 | return TRUE; | |
2969 | case bfd_link_hash_new: | |
2970 | /* This can happen for set symbols when sets are not being | |
07d6d2b8 | 2971 | built. */ |
116c20d2 NC |
2972 | return TRUE; |
2973 | case bfd_link_hash_undefined: | |
2974 | type = N_UNDF | N_EXT; | |
2975 | val = 0; | |
2976 | break; | |
2977 | case bfd_link_hash_defined: | |
2978 | case bfd_link_hash_defweak: | |
2979 | { | |
2980 | asection *sec; | |
2981 | ||
2982 | sec = h->root.u.def.section->output_section; | |
2983 | BFD_ASSERT (bfd_is_abs_section (sec) | |
2984 | || sec->owner == output_bfd); | |
2985 | if (sec == obj_textsec (output_bfd)) | |
2986 | type = h->root.type == bfd_link_hash_defined ? N_TEXT : N_WEAKT; | |
2987 | else if (sec == obj_datasec (output_bfd)) | |
2988 | type = h->root.type == bfd_link_hash_defined ? N_DATA : N_WEAKD; | |
2989 | else if (sec == obj_bsssec (output_bfd)) | |
2990 | type = h->root.type == bfd_link_hash_defined ? N_BSS : N_WEAKB; | |
2991 | else | |
2992 | type = h->root.type == bfd_link_hash_defined ? N_ABS : N_WEAKA; | |
2993 | type |= N_EXT; | |
2994 | val = (h->root.u.def.value | |
2995 | + sec->vma | |
2996 | + h->root.u.def.section->output_offset); | |
2997 | } | |
2998 | break; | |
2999 | case bfd_link_hash_common: | |
3000 | type = N_UNDF | N_EXT; | |
3001 | val = h->root.u.c.size; | |
3002 | break; | |
3003 | case bfd_link_hash_undefweak: | |
3004 | type = N_WEAKU; | |
3005 | val = 0; | |
1a0670f3 | 3006 | /* Fall through. */ |
116c20d2 NC |
3007 | case bfd_link_hash_indirect: |
3008 | case bfd_link_hash_warning: | |
3009 | /* FIXME: Ignore these for now. The circumstances under which | |
3010 | they should be written out are not clear to me. */ | |
3011 | return TRUE; | |
e135f41b NC |
3012 | } |
3013 | ||
116c20d2 | 3014 | H_PUT_8 (output_bfd, type, outsym.e_type); |
57402f1e | 3015 | indx = add_to_stringtab (output_bfd, flaginfo->strtab, h->root.root.string, |
116c20d2 NC |
3016 | FALSE); |
3017 | if (indx == (bfd_size_type) -1) | |
3018 | /* FIXME: No way to handle errors. */ | |
3019 | abort (); | |
e135f41b | 3020 | |
116c20d2 NC |
3021 | PUT_WORD (output_bfd, indx, outsym.e_strx); |
3022 | PUT_WORD (output_bfd, val, outsym.e_value); | |
e135f41b | 3023 | |
116c20d2 | 3024 | amt = EXTERNAL_NLIST_SIZE; |
57402f1e | 3025 | if (bfd_seek (output_bfd, flaginfo->symoff, SEEK_SET) != 0 |
116c20d2 NC |
3026 | || bfd_bwrite ((void *) &outsym, amt, output_bfd) != amt) |
3027 | /* FIXME: No way to handle errors. */ | |
3028 | abort (); | |
e135f41b | 3029 | |
57402f1e | 3030 | flaginfo->symoff += amt; |
116c20d2 NC |
3031 | h->indx = obj_aout_external_sym_count (output_bfd); |
3032 | ++obj_aout_external_sym_count (output_bfd); | |
e135f41b | 3033 | |
116c20d2 NC |
3034 | return TRUE; |
3035 | } | |
e135f41b | 3036 | |
116c20d2 | 3037 | /* Handle a link order which is supposed to generate a reloc. */ |
e135f41b | 3038 | |
116c20d2 | 3039 | static bfd_boolean |
57402f1e | 3040 | aout_link_reloc_link_order (struct aout_final_link_info *flaginfo, |
116c20d2 NC |
3041 | asection *o, |
3042 | struct bfd_link_order *p) | |
3043 | { | |
3044 | struct bfd_link_order_reloc *pr; | |
3045 | int r_index; | |
3046 | int r_extern; | |
3047 | reloc_howto_type *howto; | |
3048 | file_ptr *reloff_ptr; | |
3049 | struct reloc_std_external srel; | |
3050 | void * rel_ptr; | |
3051 | bfd_size_type rel_size; | |
e135f41b | 3052 | |
116c20d2 | 3053 | pr = p->u.reloc.p; |
e135f41b | 3054 | |
116c20d2 | 3055 | if (p->type == bfd_section_reloc_link_order) |
e135f41b | 3056 | { |
116c20d2 NC |
3057 | r_extern = 0; |
3058 | if (bfd_is_abs_section (pr->u.section)) | |
3059 | r_index = N_ABS | N_EXT; | |
3060 | else | |
e135f41b | 3061 | { |
57402f1e | 3062 | BFD_ASSERT (pr->u.section->owner == flaginfo->output_bfd); |
116c20d2 | 3063 | r_index = pr->u.section->target_index; |
e135f41b NC |
3064 | } |
3065 | } | |
116c20d2 | 3066 | else |
e135f41b | 3067 | { |
116c20d2 | 3068 | struct aout_link_hash_entry *h; |
e135f41b | 3069 | |
116c20d2 NC |
3070 | BFD_ASSERT (p->type == bfd_symbol_reloc_link_order); |
3071 | r_extern = 1; | |
3072 | h = ((struct aout_link_hash_entry *) | |
57402f1e | 3073 | bfd_wrapped_link_hash_lookup (flaginfo->output_bfd, flaginfo->info, |
116c20d2 NC |
3074 | pr->u.name, FALSE, FALSE, TRUE)); |
3075 | if (h != NULL | |
3076 | && h->indx >= 0) | |
3077 | r_index = h->indx; | |
3078 | else if (h != NULL) | |
3079 | { | |
3080 | /* We decided to strip this symbol, but it turns out that we | |
3081 | can't. Note that we lose the other and desc information | |
3082 | here. I don't think that will ever matter for a global | |
3083 | symbol. */ | |
3084 | h->indx = -2; | |
3085 | h->written = FALSE; | |
57402f1e | 3086 | if (!aout_link_write_other_symbol (&h->root.root, flaginfo)) |
116c20d2 NC |
3087 | return FALSE; |
3088 | r_index = h->indx; | |
e135f41b | 3089 | } |
116c20d2 | 3090 | else |
e135f41b | 3091 | { |
1a72702b AM |
3092 | (*flaginfo->info->callbacks->unattached_reloc) |
3093 | (flaginfo->info, pr->u.name, NULL, NULL, (bfd_vma) 0); | |
116c20d2 | 3094 | r_index = 0; |
e135f41b NC |
3095 | } |
3096 | } | |
3097 | ||
57402f1e | 3098 | howto = bfd_reloc_type_lookup (flaginfo->output_bfd, pr->reloc); |
116c20d2 | 3099 | if (howto == 0) |
e135f41b | 3100 | { |
116c20d2 NC |
3101 | bfd_set_error (bfd_error_bad_value); |
3102 | return FALSE; | |
e135f41b NC |
3103 | } |
3104 | ||
57402f1e NC |
3105 | if (o == obj_textsec (flaginfo->output_bfd)) |
3106 | reloff_ptr = &flaginfo->treloff; | |
3107 | else if (o == obj_datasec (flaginfo->output_bfd)) | |
3108 | reloff_ptr = &flaginfo->dreloff; | |
116c20d2 NC |
3109 | else |
3110 | abort (); | |
e135f41b | 3111 | |
116c20d2 | 3112 | #ifdef MY_put_reloc |
57402f1e | 3113 | MY_put_reloc(flaginfo->output_bfd, r_extern, r_index, p->offset, howto, |
116c20d2 NC |
3114 | &srel); |
3115 | #else | |
3116 | { | |
3117 | int r_pcrel; | |
3118 | int r_baserel; | |
3119 | int r_jmptable; | |
3120 | int r_relative; | |
3121 | int r_length; | |
e135f41b | 3122 | |
116c20d2 | 3123 | fprintf (stderr, "TODO: line %d in bfd/pdp11.c\n", __LINE__); |
e135f41b | 3124 | |
116c20d2 NC |
3125 | r_pcrel = howto->pc_relative; |
3126 | r_baserel = (howto->type & 8) != 0; | |
3127 | r_jmptable = (howto->type & 16) != 0; | |
3128 | r_relative = (howto->type & 32) != 0; | |
3129 | r_length = howto->size; | |
e135f41b | 3130 | |
57402f1e NC |
3131 | PUT_WORD (flaginfo->output_bfd, p->offset, srel.r_address); |
3132 | if (bfd_header_big_endian (flaginfo->output_bfd)) | |
116c20d2 NC |
3133 | { |
3134 | srel.r_index[0] = r_index >> 16; | |
3135 | srel.r_index[1] = r_index >> 8; | |
3136 | srel.r_index[2] = r_index; | |
3137 | srel.r_type[0] = | |
3138 | ((r_extern ? RELOC_STD_BITS_EXTERN_BIG : 0) | |
3139 | | (r_pcrel ? RELOC_STD_BITS_PCREL_BIG : 0) | |
3140 | | (r_baserel ? RELOC_STD_BITS_BASEREL_BIG : 0) | |
3141 | | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_BIG : 0) | |
3142 | | (r_relative ? RELOC_STD_BITS_RELATIVE_BIG : 0) | |
3143 | | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG)); | |
3144 | } | |
3145 | else | |
3146 | { | |
3147 | srel.r_index[2] = r_index >> 16; | |
3148 | srel.r_index[1] = r_index >> 8; | |
3149 | srel.r_index[0] = r_index; | |
3150 | srel.r_type[0] = | |
3151 | ((r_extern ? RELOC_STD_BITS_EXTERN_LITTLE : 0) | |
3152 | | (r_pcrel ? RELOC_STD_BITS_PCREL_LITTLE : 0) | |
3153 | | (r_baserel ? RELOC_STD_BITS_BASEREL_LITTLE : 0) | |
3154 | | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_LITTLE : 0) | |
3155 | | (r_relative ? RELOC_STD_BITS_RELATIVE_LITTLE : 0) | |
3156 | | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE)); | |
3157 | } | |
3158 | } | |
3159 | #endif | |
3160 | rel_ptr = (void *) &srel; | |
e135f41b | 3161 | |
116c20d2 NC |
3162 | /* We have to write the addend into the object file, since |
3163 | standard a.out relocs are in place. It would be more | |
3164 | reliable if we had the current contents of the file here, | |
3165 | rather than assuming zeroes, but we can't read the file since | |
3166 | it was opened using bfd_openw. */ | |
3167 | if (pr->addend != 0) | |
e135f41b | 3168 | { |
116c20d2 NC |
3169 | bfd_size_type size; |
3170 | bfd_reloc_status_type r; | |
3171 | bfd_byte *buf; | |
3172 | bfd_boolean ok; | |
3173 | ||
3174 | size = bfd_get_reloc_size (howto); | |
3175 | buf = bfd_zmalloc (size); | |
6346d5ca | 3176 | if (buf == NULL && size != 0) |
116c20d2 | 3177 | return FALSE; |
57402f1e | 3178 | r = MY_relocate_contents (howto, flaginfo->output_bfd, |
116c20d2 NC |
3179 | pr->addend, buf); |
3180 | switch (r) | |
3181 | { | |
3182 | case bfd_reloc_ok: | |
3183 | break; | |
3184 | default: | |
3185 | case bfd_reloc_outofrange: | |
3186 | abort (); | |
3187 | case bfd_reloc_overflow: | |
1a72702b AM |
3188 | (*flaginfo->info->callbacks->reloc_overflow) |
3189 | (flaginfo->info, NULL, | |
3190 | (p->type == bfd_section_reloc_link_order | |
fd361982 | 3191 | ? bfd_section_name (pr->u.section) |
1a72702b AM |
3192 | : pr->u.name), |
3193 | howto->name, pr->addend, NULL, | |
3194 | (asection *) NULL, (bfd_vma) 0); | |
116c20d2 NC |
3195 | break; |
3196 | } | |
57402f1e | 3197 | ok = bfd_set_section_contents (flaginfo->output_bfd, o, |
116c20d2 NC |
3198 | (void *) buf, |
3199 | (file_ptr) p->offset, | |
3200 | size); | |
3201 | free (buf); | |
3202 | if (! ok) | |
3203 | return FALSE; | |
e135f41b NC |
3204 | } |
3205 | ||
57402f1e NC |
3206 | rel_size = obj_reloc_entry_size (flaginfo->output_bfd); |
3207 | if (bfd_seek (flaginfo->output_bfd, *reloff_ptr, SEEK_SET) != 0 | |
3208 | || bfd_bwrite (rel_ptr, rel_size, flaginfo->output_bfd) != rel_size) | |
b34976b6 | 3209 | return FALSE; |
e135f41b | 3210 | |
116c20d2 | 3211 | *reloff_ptr += rel_size; |
e135f41b | 3212 | |
116c20d2 NC |
3213 | /* Assert that the relocs have not run into the symbols, and that n |
3214 | the text relocs have not run into the data relocs. */ | |
57402f1e NC |
3215 | BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (flaginfo->output_bfd) |
3216 | && (reloff_ptr != &flaginfo->treloff | |
116c20d2 | 3217 | || (*reloff_ptr |
57402f1e | 3218 | <= obj_datasec (flaginfo->output_bfd)->rel_filepos))); |
e135f41b | 3219 | |
116c20d2 NC |
3220 | return TRUE; |
3221 | } | |
e135f41b | 3222 | |
116c20d2 NC |
3223 | /* Get the section corresponding to a reloc index. */ |
3224 | ||
3225 | static inline asection * | |
3226 | aout_reloc_type_to_section (bfd *abfd, int type) | |
3227 | { | |
3228 | switch (type) | |
e135f41b | 3229 | { |
116c20d2 NC |
3230 | case RTEXT: return obj_textsec (abfd); |
3231 | case RDATA: return obj_datasec (abfd); | |
3232 | case RBSS: return obj_bsssec (abfd); | |
3233 | case RABS: return bfd_abs_section_ptr; | |
3234 | case REXT: return bfd_und_section_ptr; | |
3235 | default: abort (); | |
e135f41b | 3236 | } |
e135f41b NC |
3237 | } |
3238 | ||
b34976b6 | 3239 | static bfd_boolean |
57402f1e | 3240 | pdp11_aout_link_input_section (struct aout_final_link_info *flaginfo, |
116c20d2 NC |
3241 | bfd *input_bfd, |
3242 | asection *input_section, | |
3243 | bfd_byte *relocs, | |
3244 | bfd_size_type rel_size, | |
3245 | bfd_byte *contents) | |
e135f41b | 3246 | { |
116c20d2 NC |
3247 | bfd_boolean (*check_dynamic_reloc) |
3248 | (struct bfd_link_info *, bfd *, asection *, | |
3249 | struct aout_link_hash_entry *, void *, bfd_byte *, bfd_boolean *, | |
3250 | bfd_vma *); | |
e135f41b | 3251 | bfd *output_bfd; |
116c20d2 NC |
3252 | bfd_boolean relocatable; |
3253 | struct external_nlist *syms; | |
e135f41b | 3254 | char *strings; |
116c20d2 | 3255 | struct aout_link_hash_entry **sym_hashes; |
e135f41b | 3256 | int *symbol_map; |
116c20d2 NC |
3257 | bfd_byte *rel; |
3258 | bfd_byte *rel_end; | |
e135f41b | 3259 | |
57402f1e | 3260 | output_bfd = flaginfo->output_bfd; |
116c20d2 | 3261 | check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc; |
e135f41b | 3262 | |
116c20d2 NC |
3263 | BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_SIZE); |
3264 | BFD_ASSERT (input_bfd->xvec->header_byteorder | |
3265 | == output_bfd->xvec->header_byteorder); | |
e135f41b | 3266 | |
0e1862bb | 3267 | relocatable = bfd_link_relocatable (flaginfo->info); |
116c20d2 NC |
3268 | syms = obj_aout_external_syms (input_bfd); |
3269 | strings = obj_aout_external_strings (input_bfd); | |
3270 | sym_hashes = obj_aout_sym_hashes (input_bfd); | |
57402f1e | 3271 | symbol_map = flaginfo->symbol_map; |
116c20d2 | 3272 | |
116c20d2 NC |
3273 | rel = relocs; |
3274 | rel_end = rel + rel_size; | |
3275 | for (; rel < rel_end; rel += RELOC_SIZE) | |
e135f41b | 3276 | { |
116c20d2 NC |
3277 | bfd_vma r_addr; |
3278 | int r_index; | |
3279 | int r_type; | |
3280 | int r_pcrel; | |
3281 | int r_extern; | |
3282 | reloc_howto_type *howto; | |
3283 | struct aout_link_hash_entry *h = NULL; | |
3284 | bfd_vma relocation; | |
3285 | bfd_reloc_status_type r; | |
3286 | int reloc_entry; | |
e135f41b | 3287 | |
116c20d2 NC |
3288 | reloc_entry = GET_WORD (input_bfd, (void *) rel); |
3289 | if (reloc_entry == 0) | |
e135f41b NC |
3290 | continue; |
3291 | ||
116c20d2 NC |
3292 | { |
3293 | unsigned int howto_idx; | |
e135f41b | 3294 | |
116c20d2 NC |
3295 | r_index = (reloc_entry & RIDXMASK) >> 4; |
3296 | r_type = reloc_entry & RTYPE; | |
3297 | r_pcrel = reloc_entry & RELFLG; | |
3298 | r_addr = (char *) rel - (char *) relocs; | |
e135f41b | 3299 | |
116c20d2 | 3300 | r_extern = (r_type == REXT); |
e135f41b | 3301 | |
116c20d2 NC |
3302 | howto_idx = r_pcrel; |
3303 | BFD_ASSERT (howto_idx < TABLE_SIZE (howto_table_pdp11)); | |
3304 | howto = howto_table_pdp11 + howto_idx; | |
3305 | } | |
3306 | ||
3307 | if (relocatable) | |
e135f41b | 3308 | { |
116c20d2 NC |
3309 | /* We are generating a relocatable output file, and must |
3310 | modify the reloc accordingly. */ | |
3311 | if (r_extern) | |
3312 | { | |
3313 | /* If we know the symbol this relocation is against, | |
3314 | convert it into a relocation against a section. This | |
3315 | is what the native linker does. */ | |
3316 | h = sym_hashes[r_index]; | |
3317 | if (h != NULL | |
3318 | && (h->root.type == bfd_link_hash_defined | |
3319 | || h->root.type == bfd_link_hash_defweak)) | |
3320 | { | |
3321 | asection *output_section; | |
e135f41b | 3322 | |
116c20d2 NC |
3323 | /* Compute a new r_index. */ |
3324 | output_section = h->root.u.def.section->output_section; | |
e135f41b | 3325 | if (output_section == obj_textsec (output_bfd)) |
116c20d2 | 3326 | r_type = N_TEXT; |
e135f41b | 3327 | else if (output_section == obj_datasec (output_bfd)) |
116c20d2 | 3328 | r_type = N_DATA; |
e135f41b | 3329 | else if (output_section == obj_bsssec (output_bfd)) |
116c20d2 | 3330 | r_type = N_BSS; |
e135f41b | 3331 | else |
116c20d2 | 3332 | r_type = N_ABS; |
e135f41b | 3333 | |
116c20d2 NC |
3334 | /* Add the symbol value and the section VMA to the |
3335 | addend stored in the contents. */ | |
3336 | relocation = (h->root.u.def.value | |
3337 | + output_section->vma | |
3338 | + h->root.u.def.section->output_offset); | |
e135f41b | 3339 | } |
116c20d2 | 3340 | else |
e135f41b | 3341 | { |
116c20d2 NC |
3342 | /* We must change r_index according to the symbol |
3343 | map. */ | |
3344 | r_index = symbol_map[r_index]; | |
e135f41b | 3345 | |
116c20d2 | 3346 | if (r_index == -1) |
e135f41b | 3347 | { |
116c20d2 | 3348 | if (h != NULL) |
e135f41b | 3349 | { |
116c20d2 | 3350 | /* We decided to strip this symbol, but it |
07d6d2b8 AM |
3351 | turns out that we can't. Note that we |
3352 | lose the other and desc information here. | |
3353 | I don't think that will ever matter for a | |
3354 | global symbol. */ | |
116c20d2 | 3355 | if (h->indx < 0) |
e135f41b | 3356 | { |
116c20d2 NC |
3357 | h->indx = -2; |
3358 | h->written = FALSE; | |
7686d77d | 3359 | if (!aout_link_write_other_symbol (&h->root.root, |
57402f1e | 3360 | flaginfo)) |
116c20d2 | 3361 | return FALSE; |
e135f41b | 3362 | } |
116c20d2 NC |
3363 | r_index = h->indx; |
3364 | } | |
3365 | else | |
3366 | { | |
3367 | const char *name; | |
3368 | ||
3369 | name = strings + GET_WORD (input_bfd, | |
3370 | syms[r_index].e_strx); | |
1a72702b AM |
3371 | (*flaginfo->info->callbacks->unattached_reloc) |
3372 | (flaginfo->info, name, input_bfd, input_section, | |
3373 | r_addr); | |
116c20d2 | 3374 | r_index = 0; |
e135f41b NC |
3375 | } |
3376 | } | |
116c20d2 NC |
3377 | |
3378 | relocation = 0; | |
e135f41b NC |
3379 | } |
3380 | ||
116c20d2 NC |
3381 | /* Write out the new r_index value. */ |
3382 | reloc_entry = GET_WORD (input_bfd, rel); | |
3383 | reloc_entry &= RIDXMASK; | |
3384 | reloc_entry |= r_index << 4; | |
3385 | PUT_WORD (input_bfd, reloc_entry, rel); | |
3386 | } | |
3387 | else | |
3388 | { | |
3389 | asection *section; | |
3390 | ||
3391 | /* This is a relocation against a section. We must | |
3392 | adjust by the amount that the section moved. */ | |
3393 | section = aout_reloc_type_to_section (input_bfd, r_type); | |
3394 | relocation = (section->output_section->vma | |
3395 | + section->output_offset | |
3396 | - section->vma); | |
3397 | } | |
3398 | ||
3399 | /* Change the address of the relocation. */ | |
3400 | fprintf (stderr, "TODO: change the address of the relocation\n"); | |
3401 | ||
3402 | /* Adjust a PC relative relocation by removing the reference | |
3403 | to the original address in the section and including the | |
3404 | reference to the new address. */ | |
3405 | if (r_pcrel) | |
3406 | relocation -= (input_section->output_section->vma | |
3407 | + input_section->output_offset | |
3408 | - input_section->vma); | |
3409 | ||
3410 | #ifdef MY_relocatable_reloc | |
3411 | MY_relocatable_reloc (howto, output_bfd, rel, relocation, r_addr); | |
3412 | #endif | |
3413 | ||
3414 | if (relocation == 0) | |
3415 | r = bfd_reloc_ok; | |
3416 | else | |
3417 | r = MY_relocate_contents (howto, | |
3418 | input_bfd, relocation, | |
3419 | contents + r_addr); | |
3420 | } | |
3421 | else | |
3422 | { | |
3423 | bfd_boolean hundef; | |
3424 | ||
3425 | /* We are generating an executable, and must do a full | |
3426 | relocation. */ | |
3427 | hundef = FALSE; | |
3428 | if (r_extern) | |
3429 | { | |
3430 | h = sym_hashes[r_index]; | |
3431 | ||
3432 | if (h != NULL | |
3433 | && (h->root.type == bfd_link_hash_defined | |
3434 | || h->root.type == bfd_link_hash_defweak)) | |
e135f41b | 3435 | { |
116c20d2 NC |
3436 | relocation = (h->root.u.def.value |
3437 | + h->root.u.def.section->output_section->vma | |
3438 | + h->root.u.def.section->output_offset); | |
e135f41b | 3439 | } |
116c20d2 NC |
3440 | else if (h != NULL |
3441 | && h->root.type == bfd_link_hash_undefweak) | |
3442 | relocation = 0; | |
e135f41b NC |
3443 | else |
3444 | { | |
116c20d2 NC |
3445 | hundef = TRUE; |
3446 | relocation = 0; | |
3447 | } | |
3448 | } | |
3449 | else | |
3450 | { | |
3451 | asection *section; | |
e135f41b | 3452 | |
116c20d2 NC |
3453 | section = aout_reloc_type_to_section (input_bfd, r_type); |
3454 | relocation = (section->output_section->vma | |
3455 | + section->output_offset | |
3456 | - section->vma); | |
3457 | if (r_pcrel) | |
3458 | relocation += input_section->vma; | |
3459 | } | |
e135f41b | 3460 | |
116c20d2 NC |
3461 | if (check_dynamic_reloc != NULL) |
3462 | { | |
3463 | bfd_boolean skip; | |
e135f41b | 3464 | |
116c20d2 | 3465 | if (! ((*check_dynamic_reloc) |
57402f1e | 3466 | (flaginfo->info, input_bfd, input_section, h, |
116c20d2 NC |
3467 | (void *) rel, contents, &skip, &relocation))) |
3468 | return FALSE; | |
3469 | if (skip) | |
3470 | continue; | |
3471 | } | |
3472 | ||
3473 | /* Now warn if a global symbol is undefined. We could not | |
07d6d2b8 AM |
3474 | do this earlier, because check_dynamic_reloc might want |
3475 | to skip this reloc. */ | |
0e1862bb | 3476 | if (hundef && ! bfd_link_pic (flaginfo->info)) |
116c20d2 NC |
3477 | { |
3478 | const char *name; | |
3479 | ||
3480 | if (h != NULL) | |
3481 | name = h->root.root.string; | |
3482 | else | |
3483 | name = strings + GET_WORD (input_bfd, syms[r_index].e_strx); | |
1a72702b AM |
3484 | (*flaginfo->info->callbacks->undefined_symbol) |
3485 | (flaginfo->info, name, input_bfd, input_section, | |
3486 | r_addr, TRUE); | |
e135f41b | 3487 | } |
116c20d2 NC |
3488 | |
3489 | r = MY_final_link_relocate (howto, | |
3490 | input_bfd, input_section, | |
3491 | contents, r_addr, relocation, | |
3492 | (bfd_vma) 0); | |
e135f41b NC |
3493 | } |
3494 | ||
116c20d2 | 3495 | if (r != bfd_reloc_ok) |
e135f41b | 3496 | { |
116c20d2 NC |
3497 | switch (r) |
3498 | { | |
3499 | default: | |
3500 | case bfd_reloc_outofrange: | |
3501 | abort (); | |
3502 | case bfd_reloc_overflow: | |
3503 | { | |
3504 | const char *name; | |
3505 | ||
3506 | if (h != NULL) | |
3507 | name = NULL; | |
3508 | else if (r_extern) | |
3509 | name = strings + GET_WORD (input_bfd, | |
3510 | syms[r_index].e_strx); | |
3511 | else | |
3512 | { | |
3513 | asection *s; | |
3514 | ||
3515 | s = aout_reloc_type_to_section (input_bfd, r_type); | |
fd361982 | 3516 | name = bfd_section_name (s); |
116c20d2 | 3517 | } |
1a72702b AM |
3518 | (*flaginfo->info->callbacks->reloc_overflow) |
3519 | (flaginfo->info, (h ? &h->root : NULL), name, howto->name, | |
3520 | (bfd_vma) 0, input_bfd, input_section, r_addr); | |
116c20d2 NC |
3521 | } |
3522 | break; | |
3523 | } | |
e135f41b | 3524 | } |
e135f41b NC |
3525 | } |
3526 | ||
116c20d2 NC |
3527 | return TRUE; |
3528 | } | |
3529 | ||
3530 | /* Link an a.out section into the output file. */ | |
3531 | ||
3532 | static bfd_boolean | |
57402f1e | 3533 | aout_link_input_section (struct aout_final_link_info *flaginfo, |
116c20d2 NC |
3534 | bfd *input_bfd, |
3535 | asection *input_section, | |
3536 | file_ptr *reloff_ptr, | |
3537 | bfd_size_type rel_size) | |
3538 | { | |
3539 | bfd_size_type input_size; | |
3540 | void * relocs; | |
3541 | ||
3542 | /* Get the section contents. */ | |
3543 | input_size = input_section->size; | |
3544 | if (! bfd_get_section_contents (input_bfd, input_section, | |
57402f1e | 3545 | (void *) flaginfo->contents, |
116c20d2 NC |
3546 | (file_ptr) 0, input_size)) |
3547 | return FALSE; | |
3548 | ||
3549 | /* Read in the relocs if we haven't already done it. */ | |
3550 | if (aout_section_data (input_section) != NULL | |
3551 | && aout_section_data (input_section)->relocs != NULL) | |
3552 | relocs = aout_section_data (input_section)->relocs; | |
3553 | else | |
e135f41b | 3554 | { |
57402f1e | 3555 | relocs = flaginfo->relocs; |
116c20d2 NC |
3556 | if (rel_size > 0) |
3557 | { | |
3558 | if (bfd_seek (input_bfd, input_section->rel_filepos, SEEK_SET) != 0 | |
3559 | || bfd_bread (relocs, rel_size, input_bfd) != rel_size) | |
3560 | return FALSE; | |
3561 | } | |
3562 | } | |
e135f41b | 3563 | |
116c20d2 | 3564 | /* Relocate the section contents. */ |
57402f1e | 3565 | if (! pdp11_aout_link_input_section (flaginfo, input_bfd, input_section, |
116c20d2 | 3566 | (bfd_byte *) relocs, |
57402f1e | 3567 | rel_size, flaginfo->contents)) |
116c20d2 NC |
3568 | return FALSE; |
3569 | ||
3570 | /* Write out the section contents. */ | |
57402f1e | 3571 | if (! bfd_set_section_contents (flaginfo->output_bfd, |
116c20d2 | 3572 | input_section->output_section, |
57402f1e | 3573 | (void *) flaginfo->contents, |
116c20d2 NC |
3574 | (file_ptr) input_section->output_offset, |
3575 | input_size)) | |
3576 | return FALSE; | |
3577 | ||
3578 | /* If we are producing relocatable output, the relocs were | |
3579 | modified, and we now write them out. */ | |
0e1862bb | 3580 | if (bfd_link_relocatable (flaginfo->info) && rel_size > 0) |
116c20d2 | 3581 | { |
57402f1e | 3582 | if (bfd_seek (flaginfo->output_bfd, *reloff_ptr, SEEK_SET) != 0) |
116c20d2 | 3583 | return FALSE; |
57402f1e | 3584 | if (bfd_bwrite (relocs, rel_size, flaginfo->output_bfd) != rel_size) |
116c20d2 NC |
3585 | return FALSE; |
3586 | *reloff_ptr += rel_size; | |
3587 | ||
3588 | /* Assert that the relocs have not run into the symbols, and | |
3589 | that if these are the text relocs they have not run into the | |
3590 | data relocs. */ | |
57402f1e NC |
3591 | BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (flaginfo->output_bfd) |
3592 | && (reloff_ptr != &flaginfo->treloff | |
116c20d2 | 3593 | || (*reloff_ptr |
57402f1e | 3594 | <= obj_datasec (flaginfo->output_bfd)->rel_filepos))); |
116c20d2 NC |
3595 | } |
3596 | ||
3597 | return TRUE; | |
3598 | } | |
3599 | ||
3600 | /* Link an a.out input BFD into the output file. */ | |
3601 | ||
3602 | static bfd_boolean | |
57402f1e | 3603 | aout_link_input_bfd (struct aout_final_link_info *flaginfo, bfd *input_bfd) |
116c20d2 | 3604 | { |
116c20d2 NC |
3605 | BFD_ASSERT (bfd_get_format (input_bfd) == bfd_object); |
3606 | ||
3607 | /* If this is a dynamic object, it may need special handling. */ | |
3608 | if ((input_bfd->flags & DYNAMIC) != 0 | |
3609 | && aout_backend_info (input_bfd)->link_dynamic_object != NULL) | |
3610 | return ((*aout_backend_info (input_bfd)->link_dynamic_object) | |
57402f1e | 3611 | (flaginfo->info, input_bfd)); |
116c20d2 NC |
3612 | |
3613 | /* Get the symbols. We probably have them already, unless | |
57402f1e | 3614 | flaginfo->info->keep_memory is FALSE. */ |
116c20d2 NC |
3615 | if (! aout_get_external_symbols (input_bfd)) |
3616 | return FALSE; | |
3617 | ||
116c20d2 | 3618 | /* Write out the symbols and get a map of the new indices. The map |
57402f1e NC |
3619 | is placed into flaginfo->symbol_map. */ |
3620 | if (! aout_link_write_symbols (flaginfo, input_bfd)) | |
116c20d2 NC |
3621 | return FALSE; |
3622 | ||
3623 | /* Relocate and write out the sections. These functions use the | |
3624 | symbol map created by aout_link_write_symbols. The linker_mark | |
3625 | field will be set if these sections are to be included in the | |
3626 | link, which will normally be the case. */ | |
3627 | if (obj_textsec (input_bfd)->linker_mark) | |
3628 | { | |
57402f1e | 3629 | if (! aout_link_input_section (flaginfo, input_bfd, |
116c20d2 | 3630 | obj_textsec (input_bfd), |
57402f1e | 3631 | &flaginfo->treloff, |
116c20d2 NC |
3632 | exec_hdr (input_bfd)->a_trsize)) |
3633 | return FALSE; | |
3634 | } | |
3635 | if (obj_datasec (input_bfd)->linker_mark) | |
3636 | { | |
57402f1e | 3637 | if (! aout_link_input_section (flaginfo, input_bfd, |
116c20d2 | 3638 | obj_datasec (input_bfd), |
57402f1e | 3639 | &flaginfo->dreloff, |
116c20d2 | 3640 | exec_hdr (input_bfd)->a_drsize)) |
b34976b6 | 3641 | return FALSE; |
116c20d2 NC |
3642 | } |
3643 | ||
3644 | /* If we are not keeping memory, we don't need the symbols any | |
3645 | longer. We still need them if we are keeping memory, because the | |
3646 | strings in the hash table point into them. */ | |
57402f1e | 3647 | if (! flaginfo->info->keep_memory) |
116c20d2 NC |
3648 | { |
3649 | if (! aout_link_free_symbols (input_bfd)) | |
b34976b6 | 3650 | return FALSE; |
e135f41b NC |
3651 | } |
3652 | ||
b34976b6 | 3653 | return TRUE; |
e135f41b NC |
3654 | } |
3655 | ||
116c20d2 NC |
3656 | /* Do the final link step. This is called on the output BFD. The |
3657 | INFO structure should point to a list of BFDs linked through the | |
c72f2fb2 | 3658 | link.next field which can be used to find each BFD which takes part |
116c20d2 NC |
3659 | in the output. Also, each section in ABFD should point to a list |
3660 | of bfd_link_order structures which list all the input sections for | |
3661 | the output section. */ | |
e135f41b | 3662 | |
116c20d2 NC |
3663 | bfd_boolean |
3664 | NAME (aout, final_link) (bfd *abfd, | |
3665 | struct bfd_link_info *info, | |
3666 | void (*callback) (bfd *, file_ptr *, file_ptr *, file_ptr *)) | |
e135f41b | 3667 | { |
116c20d2 NC |
3668 | struct aout_final_link_info aout_info; |
3669 | bfd_boolean includes_hash_initialized = FALSE; | |
3670 | bfd *sub; | |
3671 | bfd_size_type trsize, drsize; | |
3672 | bfd_size_type max_contents_size; | |
3673 | bfd_size_type max_relocs_size; | |
3674 | bfd_size_type max_sym_count; | |
116c20d2 NC |
3675 | struct bfd_link_order *p; |
3676 | asection *o; | |
3677 | bfd_boolean have_link_order_relocs; | |
e135f41b | 3678 | |
0e1862bb | 3679 | if (bfd_link_pic (info)) |
116c20d2 | 3680 | abfd->flags |= DYNAMIC; |
e92d460e | 3681 | |
fa1477dc | 3682 | separate_i_d = info->separate_code; |
116c20d2 NC |
3683 | aout_info.info = info; |
3684 | aout_info.output_bfd = abfd; | |
3685 | aout_info.contents = NULL; | |
3686 | aout_info.relocs = NULL; | |
3687 | aout_info.symbol_map = NULL; | |
3688 | aout_info.output_syms = NULL; | |
e135f41b | 3689 | |
66eb6687 AM |
3690 | if (!bfd_hash_table_init_n (&aout_info.includes.root, |
3691 | aout_link_includes_newfunc, | |
3692 | sizeof (struct aout_link_includes_entry), | |
3693 | 251)) | |
116c20d2 NC |
3694 | goto error_return; |
3695 | includes_hash_initialized = TRUE; | |
3696 | ||
3697 | /* Figure out the largest section size. Also, if generating | |
3698 | relocatable output, count the relocs. */ | |
3699 | trsize = 0; | |
3700 | drsize = 0; | |
3701 | max_contents_size = 0; | |
3702 | max_relocs_size = 0; | |
3703 | max_sym_count = 0; | |
c72f2fb2 | 3704 | for (sub = info->input_bfds; sub != NULL; sub = sub->link.next) |
e135f41b | 3705 | { |
116c20d2 NC |
3706 | size_t sz; |
3707 | ||
0e1862bb | 3708 | if (bfd_link_relocatable (info)) |
e135f41b | 3709 | { |
116c20d2 NC |
3710 | if (bfd_get_flavour (sub) == bfd_target_aout_flavour) |
3711 | { | |
3712 | trsize += exec_hdr (sub)->a_trsize; | |
3713 | drsize += exec_hdr (sub)->a_drsize; | |
3714 | } | |
3715 | else | |
3716 | { | |
3717 | /* FIXME: We need to identify the .text and .data sections | |
3718 | and call get_reloc_upper_bound and canonicalize_reloc to | |
3719 | work out the number of relocs needed, and then multiply | |
3720 | by the reloc size. */ | |
4eca0228 | 3721 | _bfd_error_handler |
695344c0 | 3722 | /* xgettext:c-format */ |
871b3ab2 | 3723 | (_("%pB: relocatable link from %s to %s not supported"), |
dae82561 | 3724 | abfd, sub->xvec->name, abfd->xvec->name); |
116c20d2 NC |
3725 | bfd_set_error (bfd_error_invalid_operation); |
3726 | goto error_return; | |
3727 | } | |
e135f41b | 3728 | } |
e135f41b | 3729 | |
116c20d2 NC |
3730 | if (bfd_get_flavour (sub) == bfd_target_aout_flavour) |
3731 | { | |
3732 | sz = obj_textsec (sub)->size; | |
3733 | if (sz > max_contents_size) | |
3734 | max_contents_size = sz; | |
3735 | sz = obj_datasec (sub)->size; | |
3736 | if (sz > max_contents_size) | |
3737 | max_contents_size = sz; | |
e135f41b | 3738 | |
116c20d2 NC |
3739 | sz = exec_hdr (sub)->a_trsize; |
3740 | if (sz > max_relocs_size) | |
3741 | max_relocs_size = sz; | |
3742 | sz = exec_hdr (sub)->a_drsize; | |
3743 | if (sz > max_relocs_size) | |
3744 | max_relocs_size = sz; | |
e135f41b | 3745 | |
116c20d2 NC |
3746 | sz = obj_aout_external_sym_count (sub); |
3747 | if (sz > max_sym_count) | |
3748 | max_sym_count = sz; | |
3749 | } | |
e135f41b NC |
3750 | } |
3751 | ||
0e1862bb | 3752 | if (bfd_link_relocatable (info)) |
e135f41b | 3753 | { |
116c20d2 NC |
3754 | if (obj_textsec (abfd) != NULL) |
3755 | trsize += (_bfd_count_link_order_relocs (obj_textsec (abfd) | |
8423293d | 3756 | ->map_head.link_order) |
116c20d2 NC |
3757 | * obj_reloc_entry_size (abfd)); |
3758 | if (obj_datasec (abfd) != NULL) | |
3759 | drsize += (_bfd_count_link_order_relocs (obj_datasec (abfd) | |
8423293d | 3760 | ->map_head.link_order) |
116c20d2 | 3761 | * obj_reloc_entry_size (abfd)); |
e135f41b | 3762 | } |
e135f41b | 3763 | |
116c20d2 NC |
3764 | exec_hdr (abfd)->a_trsize = trsize; |
3765 | exec_hdr (abfd)->a_drsize = drsize; | |
3766 | exec_hdr (abfd)->a_entry = bfd_get_start_address (abfd); | |
3767 | ||
3768 | /* Adjust the section sizes and vmas according to the magic number. | |
3769 | This sets a_text, a_data and a_bss in the exec_hdr and sets the | |
3770 | filepos for each section. */ | |
3a8c4a5b | 3771 | if (! NAME (aout, adjust_sizes_and_vmas) (abfd)) |
116c20d2 NC |
3772 | goto error_return; |
3773 | ||
3774 | /* The relocation and symbol file positions differ among a.out | |
3775 | targets. We are passed a callback routine from the backend | |
3776 | specific code to handle this. | |
3777 | FIXME: At this point we do not know how much space the symbol | |
3778 | table will require. This will not work for any (nonstandard) | |
3779 | a.out target that needs to know the symbol table size before it | |
dc12032b | 3780 | can compute the relocation file positions. */ |
116c20d2 NC |
3781 | (*callback) (abfd, &aout_info.treloff, &aout_info.dreloff, |
3782 | &aout_info.symoff); | |
3783 | obj_textsec (abfd)->rel_filepos = aout_info.treloff; | |
3784 | obj_datasec (abfd)->rel_filepos = aout_info.dreloff; | |
3785 | obj_sym_filepos (abfd) = aout_info.symoff; | |
3786 | ||
3787 | /* We keep a count of the symbols as we output them. */ | |
3788 | obj_aout_external_sym_count (abfd) = 0; | |
3789 | ||
3790 | /* We accumulate the string table as we write out the symbols. */ | |
3791 | aout_info.strtab = _bfd_stringtab_init (); | |
3792 | if (aout_info.strtab == NULL) | |
3793 | goto error_return; | |
3794 | ||
3795 | /* Allocate buffers to hold section contents and relocs. */ | |
3796 | aout_info.contents = bfd_malloc (max_contents_size); | |
3797 | aout_info.relocs = bfd_malloc (max_relocs_size); | |
3798 | aout_info.symbol_map = bfd_malloc (max_sym_count * sizeof (int *)); | |
3799 | aout_info.output_syms = bfd_malloc ((max_sym_count + 1) | |
3800 | * sizeof (struct external_nlist)); | |
3801 | if ((aout_info.contents == NULL && max_contents_size != 0) | |
3802 | || (aout_info.relocs == NULL && max_relocs_size != 0) | |
3803 | || (aout_info.symbol_map == NULL && max_sym_count != 0) | |
3804 | || aout_info.output_syms == NULL) | |
3805 | goto error_return; | |
3806 | ||
3807 | /* If we have a symbol named __DYNAMIC, force it out now. This is | |
3808 | required by SunOS. Doing this here rather than in sunos.c is a | |
3809 | hack, but it's easier than exporting everything which would be | |
3810 | needed. */ | |
3811 | { | |
3812 | struct aout_link_hash_entry *h; | |
3813 | ||
3814 | h = aout_link_hash_lookup (aout_hash_table (info), "__DYNAMIC", | |
3815 | FALSE, FALSE, FALSE); | |
3816 | if (h != NULL) | |
7686d77d | 3817 | aout_link_write_other_symbol (&h->root.root, &aout_info); |
116c20d2 NC |
3818 | } |
3819 | ||
3820 | /* The most time efficient way to do the link would be to read all | |
3821 | the input object files into memory and then sort out the | |
3822 | information into the output file. Unfortunately, that will | |
3823 | probably use too much memory. Another method would be to step | |
3824 | through everything that composes the text section and write it | |
3825 | out, and then everything that composes the data section and write | |
3826 | it out, and then write out the relocs, and then write out the | |
3827 | symbols. Unfortunately, that requires reading stuff from each | |
3828 | input file several times, and we will not be able to keep all the | |
3829 | input files open simultaneously, and reopening them will be slow. | |
3830 | ||
3831 | What we do is basically process one input file at a time. We do | |
3832 | everything we need to do with an input file once--copy over the | |
3833 | section contents, handle the relocation information, and write | |
3834 | out the symbols--and then we throw away the information we read | |
3835 | from it. This approach requires a lot of lseeks of the output | |
3836 | file, which is unfortunate but still faster than reopening a lot | |
3837 | of files. | |
3838 | ||
3839 | We use the output_has_begun field of the input BFDs to see | |
3840 | whether we have already handled it. */ | |
c72f2fb2 | 3841 | for (sub = info->input_bfds; sub != NULL; sub = sub->link.next) |
116c20d2 NC |
3842 | sub->output_has_begun = FALSE; |
3843 | ||
3844 | /* Mark all sections which are to be included in the link. This | |
3845 | will normally be every section. We need to do this so that we | |
3846 | can identify any sections which the linker has decided to not | |
3847 | include. */ | |
3848 | for (o = abfd->sections; o != NULL; o = o->next) | |
e135f41b | 3849 | { |
8423293d | 3850 | for (p = o->map_head.link_order; p != NULL; p = p->next) |
116c20d2 NC |
3851 | if (p->type == bfd_indirect_link_order) |
3852 | p->u.indirect.section->linker_mark = TRUE; | |
e135f41b NC |
3853 | } |
3854 | ||
116c20d2 NC |
3855 | have_link_order_relocs = FALSE; |
3856 | for (o = abfd->sections; o != NULL; o = o->next) | |
3857 | { | |
8423293d | 3858 | for (p = o->map_head.link_order; |
116c20d2 NC |
3859 | p != NULL; |
3860 | p = p->next) | |
3861 | { | |
3862 | if (p->type == bfd_indirect_link_order | |
3863 | && (bfd_get_flavour (p->u.indirect.section->owner) | |
3864 | == bfd_target_aout_flavour)) | |
3865 | { | |
3866 | bfd *input_bfd; | |
e135f41b | 3867 | |
116c20d2 NC |
3868 | input_bfd = p->u.indirect.section->owner; |
3869 | if (! input_bfd->output_has_begun) | |
3870 | { | |
3871 | if (! aout_link_input_bfd (&aout_info, input_bfd)) | |
3872 | goto error_return; | |
3873 | input_bfd->output_has_begun = TRUE; | |
3874 | } | |
3875 | } | |
3876 | else if (p->type == bfd_section_reloc_link_order | |
3877 | || p->type == bfd_symbol_reloc_link_order) | |
3878 | /* These are handled below. */ | |
3879 | have_link_order_relocs = TRUE; | |
3880 | else | |
3881 | { | |
3882 | if (! _bfd_default_link_order (abfd, info, o, p)) | |
3883 | goto error_return; | |
3884 | } | |
3885 | } | |
3886 | } | |
e135f41b | 3887 | |
116c20d2 | 3888 | /* Write out any symbols that we have not already written out. */ |
7686d77d AM |
3889 | bfd_hash_traverse (&info->hash->table, |
3890 | aout_link_write_other_symbol, | |
3891 | &aout_info); | |
e135f41b | 3892 | |
116c20d2 NC |
3893 | /* Now handle any relocs we were asked to create by the linker. |
3894 | These did not come from any input file. We must do these after | |
3895 | we have written out all the symbols, so that we know the symbol | |
3896 | indices to use. */ | |
3897 | if (have_link_order_relocs) | |
e135f41b | 3898 | { |
116c20d2 | 3899 | for (o = abfd->sections; o != NULL; o = o->next) |
e135f41b | 3900 | { |
8423293d | 3901 | for (p = o->map_head.link_order; |
116c20d2 NC |
3902 | p != NULL; |
3903 | p = p->next) | |
3904 | { | |
3905 | if (p->type == bfd_section_reloc_link_order | |
3906 | || p->type == bfd_symbol_reloc_link_order) | |
3907 | { | |
3908 | if (! aout_link_reloc_link_order (&aout_info, o, p)) | |
3909 | goto error_return; | |
3910 | } | |
3911 | } | |
e135f41b NC |
3912 | } |
3913 | } | |
3914 | ||
116c20d2 NC |
3915 | if (aout_info.contents != NULL) |
3916 | { | |
3917 | free (aout_info.contents); | |
3918 | aout_info.contents = NULL; | |
3919 | } | |
3920 | if (aout_info.relocs != NULL) | |
3921 | { | |
3922 | free (aout_info.relocs); | |
3923 | aout_info.relocs = NULL; | |
3924 | } | |
3925 | if (aout_info.symbol_map != NULL) | |
3926 | { | |
3927 | free (aout_info.symbol_map); | |
3928 | aout_info.symbol_map = NULL; | |
3929 | } | |
3930 | if (aout_info.output_syms != NULL) | |
3931 | { | |
3932 | free (aout_info.output_syms); | |
3933 | aout_info.output_syms = NULL; | |
3934 | } | |
3935 | if (includes_hash_initialized) | |
3936 | { | |
3937 | bfd_hash_table_free (&aout_info.includes.root); | |
3938 | includes_hash_initialized = FALSE; | |
3939 | } | |
e135f41b | 3940 | |
116c20d2 NC |
3941 | /* Finish up any dynamic linking we may be doing. */ |
3942 | if (aout_backend_info (abfd)->finish_dynamic_link != NULL) | |
3943 | { | |
3944 | if (! (*aout_backend_info (abfd)->finish_dynamic_link) (abfd, info)) | |
3945 | goto error_return; | |
3946 | } | |
e135f41b | 3947 | |
116c20d2 NC |
3948 | /* Update the header information. */ |
3949 | abfd->symcount = obj_aout_external_sym_count (abfd); | |
3950 | exec_hdr (abfd)->a_syms = abfd->symcount * EXTERNAL_NLIST_SIZE; | |
3951 | obj_str_filepos (abfd) = obj_sym_filepos (abfd) + exec_hdr (abfd)->a_syms; | |
3952 | obj_textsec (abfd)->reloc_count = | |
3953 | exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd); | |
3954 | obj_datasec (abfd)->reloc_count = | |
3955 | exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd); | |
3956 | ||
3957 | /* Write out the string table, unless there are no symbols. */ | |
3958 | if (abfd->symcount > 0) | |
e135f41b | 3959 | { |
116c20d2 NC |
3960 | if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0 |
3961 | || ! emit_stringtab (abfd, aout_info.strtab)) | |
3962 | goto error_return; | |
3963 | } | |
3964 | else if (obj_textsec (abfd)->reloc_count == 0 | |
3965 | && obj_datasec (abfd)->reloc_count == 0) | |
3966 | { | |
dda2980f AM |
3967 | /* The layout of a typical a.out file is header, text, data, |
3968 | relocs, symbols, string table. When there are no relocs, | |
3969 | symbols or string table, the last thing in the file is data | |
3970 | and a_data may be rounded up. However we may have a smaller | |
3971 | sized .data section and thus not written final padding. The | |
3972 | same thing can happen with text if there is no data. Write | |
3973 | final padding here to extend the file. */ | |
3974 | file_ptr pos = 0; | |
3975 | ||
3976 | if (exec_hdr (abfd)->a_data > obj_datasec (abfd)->size) | |
3977 | pos = obj_datasec (abfd)->filepos + exec_hdr (abfd)->a_data; | |
3978 | else if (obj_datasec (abfd)->size == 0 | |
3979 | && exec_hdr (abfd)->a_text > obj_textsec (abfd)->size) | |
3980 | pos = obj_textsec (abfd)->filepos + exec_hdr (abfd)->a_text; | |
3981 | if (pos != 0) | |
3982 | { | |
3983 | bfd_byte b = 0; | |
e135f41b | 3984 | |
dda2980f AM |
3985 | if (bfd_seek (abfd, pos - 1, SEEK_SET) != 0 |
3986 | || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1) | |
3987 | goto error_return; | |
3988 | } | |
e135f41b NC |
3989 | } |
3990 | ||
b34976b6 | 3991 | return TRUE; |
e135f41b | 3992 | |
116c20d2 NC |
3993 | error_return: |
3994 | if (aout_info.contents != NULL) | |
3995 | free (aout_info.contents); | |
3996 | if (aout_info.relocs != NULL) | |
3997 | free (aout_info.relocs); | |
3998 | if (aout_info.symbol_map != NULL) | |
3999 | free (aout_info.symbol_map); | |
4000 | if (aout_info.output_syms != NULL) | |
4001 | free (aout_info.output_syms); | |
4002 | if (includes_hash_initialized) | |
4003 | bfd_hash_table_free (&aout_info.includes.root); | |
4004 | return FALSE; | |
e135f41b NC |
4005 | } |
4006 | ||
116c20d2 NC |
4007 | /* Adjust and write out the symbols for an a.out file. Set the new |
4008 | symbol indices into a symbol_map. */ | |
4009 | ||
b34976b6 | 4010 | static bfd_boolean |
57402f1e | 4011 | aout_link_write_symbols (struct aout_final_link_info *flaginfo, bfd *input_bfd) |
e135f41b | 4012 | { |
e135f41b | 4013 | bfd *output_bfd; |
116c20d2 | 4014 | bfd_size_type sym_count; |
e135f41b | 4015 | char *strings; |
116c20d2 NC |
4016 | enum bfd_link_strip strip; |
4017 | enum bfd_link_discard discard; | |
4018 | struct external_nlist *outsym; | |
4019 | bfd_size_type strtab_index; | |
4020 | struct external_nlist *sym; | |
4021 | struct external_nlist *sym_end; | |
4022 | struct aout_link_hash_entry **sym_hash; | |
e135f41b | 4023 | int *symbol_map; |
116c20d2 NC |
4024 | bfd_boolean pass; |
4025 | bfd_boolean skip_next; | |
e135f41b | 4026 | |
57402f1e | 4027 | output_bfd = flaginfo->output_bfd; |
116c20d2 | 4028 | sym_count = obj_aout_external_sym_count (input_bfd); |
e135f41b | 4029 | strings = obj_aout_external_strings (input_bfd); |
57402f1e NC |
4030 | strip = flaginfo->info->strip; |
4031 | discard = flaginfo->info->discard; | |
4032 | outsym = flaginfo->output_syms; | |
e135f41b | 4033 | |
116c20d2 NC |
4034 | /* First write out a symbol for this object file, unless we are |
4035 | discarding such symbols. */ | |
4036 | if (strip != strip_all | |
4037 | && (strip != strip_some | |
57402f1e | 4038 | || bfd_hash_lookup (flaginfo->info->keep_hash, input_bfd->filename, |
116c20d2 NC |
4039 | FALSE, FALSE) != NULL) |
4040 | && discard != discard_all) | |
4041 | { | |
4042 | H_PUT_8 (output_bfd, N_TEXT, outsym->e_type); | |
57402f1e | 4043 | strtab_index = add_to_stringtab (output_bfd, flaginfo->strtab, |
116c20d2 NC |
4044 | input_bfd->filename, FALSE); |
4045 | if (strtab_index == (bfd_size_type) -1) | |
4046 | return FALSE; | |
4047 | PUT_WORD (output_bfd, strtab_index, outsym->e_strx); | |
4048 | PUT_WORD (output_bfd, | |
fd361982 | 4049 | (bfd_section_vma (obj_textsec (input_bfd)->output_section) |
116c20d2 NC |
4050 | + obj_textsec (input_bfd)->output_offset), |
4051 | outsym->e_value); | |
4052 | ++obj_aout_external_sym_count (output_bfd); | |
4053 | ++outsym; | |
4054 | } | |
4055 | ||
4056 | pass = FALSE; | |
4057 | skip_next = FALSE; | |
4058 | sym = obj_aout_external_syms (input_bfd); | |
4059 | sym_end = sym + sym_count; | |
4060 | sym_hash = obj_aout_sym_hashes (input_bfd); | |
57402f1e | 4061 | symbol_map = flaginfo->symbol_map; |
116c20d2 NC |
4062 | memset (symbol_map, 0, (size_t) sym_count * sizeof *symbol_map); |
4063 | for (; sym < sym_end; sym++, sym_hash++, symbol_map++) | |
e135f41b | 4064 | { |
116c20d2 NC |
4065 | const char *name; |
4066 | int type; | |
4067 | struct aout_link_hash_entry *h; | |
4068 | bfd_boolean skip; | |
4069 | asection *symsec; | |
4070 | bfd_vma val = 0; | |
4071 | bfd_boolean copy; | |
e135f41b | 4072 | |
116c20d2 | 4073 | /* We set *symbol_map to 0 above for all symbols. If it has |
07d6d2b8 AM |
4074 | already been set to -1 for this symbol, it means that we are |
4075 | discarding it because it appears in a duplicate header file. | |
4076 | See the N_BINCL code below. */ | |
116c20d2 | 4077 | if (*symbol_map == -1) |
e135f41b NC |
4078 | continue; |
4079 | ||
116c20d2 | 4080 | /* Initialize *symbol_map to -1, which means that the symbol was |
07d6d2b8 AM |
4081 | not copied into the output file. We will change it later if |
4082 | we do copy the symbol over. */ | |
116c20d2 | 4083 | *symbol_map = -1; |
e135f41b | 4084 | |
116c20d2 NC |
4085 | type = H_GET_8 (input_bfd, sym->e_type); |
4086 | name = strings + GET_WORD (input_bfd, sym->e_strx); | |
e135f41b | 4087 | |
116c20d2 | 4088 | h = NULL; |
e135f41b | 4089 | |
116c20d2 | 4090 | if (pass) |
e135f41b | 4091 | { |
116c20d2 NC |
4092 | /* Pass this symbol through. It is the target of an |
4093 | indirect or warning symbol. */ | |
4094 | val = GET_WORD (input_bfd, sym->e_value); | |
4095 | pass = FALSE; | |
4096 | } | |
4097 | else if (skip_next) | |
4098 | { | |
4099 | /* Skip this symbol, which is the target of an indirect | |
4100 | symbol that we have changed to no longer be an indirect | |
4101 | symbol. */ | |
4102 | skip_next = FALSE; | |
4103 | continue; | |
4104 | } | |
4105 | else | |
4106 | { | |
4107 | struct aout_link_hash_entry *hresolve; | |
e135f41b | 4108 | |
116c20d2 NC |
4109 | /* We have saved the hash table entry for this symbol, if |
4110 | there is one. Note that we could just look it up again | |
4111 | in the hash table, provided we first check that it is an | |
4112 | external symbol. */ | |
4113 | h = *sym_hash; | |
e135f41b | 4114 | |
116c20d2 | 4115 | /* Use the name from the hash table, in case the symbol was |
07d6d2b8 | 4116 | wrapped. */ |
116c20d2 NC |
4117 | if (h != NULL) |
4118 | name = h->root.root.string; | |
e135f41b | 4119 | |
116c20d2 NC |
4120 | /* If this is an indirect or warning symbol, then change |
4121 | hresolve to the base symbol. We also change *sym_hash so | |
4122 | that the relocation routines relocate against the real | |
4123 | symbol. */ | |
4124 | hresolve = h; | |
4125 | if (h != NULL | |
4126 | && (h->root.type == bfd_link_hash_indirect | |
4127 | || h->root.type == bfd_link_hash_warning)) | |
4128 | { | |
4129 | hresolve = (struct aout_link_hash_entry *) h->root.u.i.link; | |
4130 | while (hresolve->root.type == bfd_link_hash_indirect | |
4131 | || hresolve->root.type == bfd_link_hash_warning) | |
4132 | hresolve = ((struct aout_link_hash_entry *) | |
4133 | hresolve->root.u.i.link); | |
4134 | *sym_hash = hresolve; | |
4135 | } | |
e135f41b | 4136 | |
116c20d2 NC |
4137 | /* If the symbol has already been written out, skip it. */ |
4138 | if (h != NULL | |
4139 | && h->root.type != bfd_link_hash_warning | |
4140 | && h->written) | |
4141 | { | |
4142 | if ((type & N_TYPE) == N_INDR | |
4143 | || type == N_WARNING) | |
4144 | skip_next = TRUE; | |
4145 | *symbol_map = h->indx; | |
4146 | continue; | |
4147 | } | |
e135f41b | 4148 | |
116c20d2 NC |
4149 | /* See if we are stripping this symbol. */ |
4150 | skip = FALSE; | |
4151 | switch (strip) | |
4152 | { | |
4153 | case strip_none: | |
4154 | break; | |
4155 | case strip_debugger: | |
4156 | if ((type & N_STAB) != 0) | |
4157 | skip = TRUE; | |
4158 | break; | |
4159 | case strip_some: | |
57402f1e | 4160 | if (bfd_hash_lookup (flaginfo->info->keep_hash, name, FALSE, FALSE) |
116c20d2 NC |
4161 | == NULL) |
4162 | skip = TRUE; | |
4163 | break; | |
4164 | case strip_all: | |
4165 | skip = TRUE; | |
4166 | break; | |
e135f41b | 4167 | } |
116c20d2 | 4168 | if (skip) |
e135f41b | 4169 | { |
116c20d2 NC |
4170 | if (h != NULL) |
4171 | h->written = TRUE; | |
4172 | continue; | |
4173 | } | |
e135f41b | 4174 | |
116c20d2 NC |
4175 | /* Get the value of the symbol. */ |
4176 | if ((type & N_TYPE) == N_TEXT | |
4177 | || type == N_WEAKT) | |
4178 | symsec = obj_textsec (input_bfd); | |
4179 | else if ((type & N_TYPE) == N_DATA | |
4180 | || type == N_WEAKD) | |
4181 | symsec = obj_datasec (input_bfd); | |
4182 | else if ((type & N_TYPE) == N_BSS | |
4183 | || type == N_WEAKB) | |
4184 | symsec = obj_bsssec (input_bfd); | |
4185 | else if ((type & N_TYPE) == N_ABS | |
4186 | || type == N_WEAKA) | |
4187 | symsec = bfd_abs_section_ptr; | |
4188 | else if (((type & N_TYPE) == N_INDR | |
4189 | && (hresolve == NULL | |
4190 | || (hresolve->root.type != bfd_link_hash_defined | |
4191 | && hresolve->root.type != bfd_link_hash_defweak | |
4192 | && hresolve->root.type != bfd_link_hash_common))) | |
4193 | || type == N_WARNING) | |
4194 | { | |
4195 | /* Pass the next symbol through unchanged. The | |
4196 | condition above for indirect symbols is so that if | |
4197 | the indirect symbol was defined, we output it with | |
4198 | the correct definition so the debugger will | |
4199 | understand it. */ | |
4200 | pass = TRUE; | |
4201 | val = GET_WORD (input_bfd, sym->e_value); | |
4202 | symsec = NULL; | |
4203 | } | |
4204 | else if ((type & N_STAB) != 0) | |
4205 | { | |
4206 | val = GET_WORD (input_bfd, sym->e_value); | |
4207 | symsec = NULL; | |
e135f41b | 4208 | } |
116c20d2 NC |
4209 | else |
4210 | { | |
4211 | /* If we get here with an indirect symbol, it means that | |
4212 | we are outputting it with a real definition. In such | |
4213 | a case we do not want to output the next symbol, | |
4214 | which is the target of the indirection. */ | |
4215 | if ((type & N_TYPE) == N_INDR) | |
4216 | skip_next = TRUE; | |
e135f41b | 4217 | |
116c20d2 | 4218 | symsec = NULL; |
e135f41b | 4219 | |
116c20d2 NC |
4220 | /* We need to get the value from the hash table. We use |
4221 | hresolve so that if we have defined an indirect | |
4222 | symbol we output the final definition. */ | |
4223 | if (h == NULL) | |
4224 | { | |
4225 | switch (type & N_TYPE) | |
4226 | { | |
4227 | case N_SETT: | |
4228 | symsec = obj_textsec (input_bfd); | |
4229 | break; | |
4230 | case N_SETD: | |
4231 | symsec = obj_datasec (input_bfd); | |
4232 | break; | |
4233 | case N_SETB: | |
4234 | symsec = obj_bsssec (input_bfd); | |
4235 | break; | |
4236 | case N_SETA: | |
4237 | symsec = bfd_abs_section_ptr; | |
4238 | break; | |
4239 | default: | |
4240 | val = 0; | |
4241 | break; | |
4242 | } | |
4243 | } | |
4244 | else if (hresolve->root.type == bfd_link_hash_defined | |
4245 | || hresolve->root.type == bfd_link_hash_defweak) | |
4246 | { | |
4247 | asection *input_section; | |
4248 | asection *output_section; | |
e135f41b | 4249 | |
116c20d2 NC |
4250 | /* This case usually means a common symbol which was |
4251 | turned into a defined symbol. */ | |
4252 | input_section = hresolve->root.u.def.section; | |
4253 | output_section = input_section->output_section; | |
4254 | BFD_ASSERT (bfd_is_abs_section (output_section) | |
4255 | || output_section->owner == output_bfd); | |
4256 | val = (hresolve->root.u.def.value | |
fd361982 | 4257 | + bfd_section_vma (output_section) |
116c20d2 | 4258 | + input_section->output_offset); |
e135f41b | 4259 | |
116c20d2 NC |
4260 | /* Get the correct type based on the section. If |
4261 | this is a constructed set, force it to be | |
4262 | globally visible. */ | |
4263 | if (type == N_SETT | |
4264 | || type == N_SETD | |
4265 | || type == N_SETB | |
4266 | || type == N_SETA) | |
4267 | type |= N_EXT; | |
e135f41b | 4268 | |
116c20d2 | 4269 | type &=~ N_TYPE; |
e135f41b | 4270 | |
116c20d2 NC |
4271 | if (output_section == obj_textsec (output_bfd)) |
4272 | type |= (hresolve->root.type == bfd_link_hash_defined | |
4273 | ? N_TEXT | |
4274 | : N_WEAKT); | |
4275 | else if (output_section == obj_datasec (output_bfd)) | |
4276 | type |= (hresolve->root.type == bfd_link_hash_defined | |
4277 | ? N_DATA | |
4278 | : N_WEAKD); | |
4279 | else if (output_section == obj_bsssec (output_bfd)) | |
4280 | type |= (hresolve->root.type == bfd_link_hash_defined | |
4281 | ? N_BSS | |
4282 | : N_WEAKB); | |
4283 | else | |
4284 | type |= (hresolve->root.type == bfd_link_hash_defined | |
4285 | ? N_ABS | |
4286 | : N_WEAKA); | |
e135f41b | 4287 | } |
116c20d2 NC |
4288 | else if (hresolve->root.type == bfd_link_hash_common) |
4289 | val = hresolve->root.u.c.size; | |
4290 | else if (hresolve->root.type == bfd_link_hash_undefweak) | |
e135f41b | 4291 | { |
116c20d2 NC |
4292 | val = 0; |
4293 | type = N_WEAKU; | |
e135f41b | 4294 | } |
116c20d2 NC |
4295 | else |
4296 | val = 0; | |
e135f41b | 4297 | } |
116c20d2 NC |
4298 | if (symsec != NULL) |
4299 | val = (symsec->output_section->vma | |
4300 | + symsec->output_offset | |
4301 | + (GET_WORD (input_bfd, sym->e_value) | |
4302 | - symsec->vma)); | |
e135f41b | 4303 | |
116c20d2 NC |
4304 | /* If this is a global symbol set the written flag, and if |
4305 | it is a local symbol see if we should discard it. */ | |
4306 | if (h != NULL) | |
e135f41b | 4307 | { |
116c20d2 NC |
4308 | h->written = TRUE; |
4309 | h->indx = obj_aout_external_sym_count (output_bfd); | |
e135f41b | 4310 | } |
116c20d2 NC |
4311 | else if ((type & N_TYPE) != N_SETT |
4312 | && (type & N_TYPE) != N_SETD | |
4313 | && (type & N_TYPE) != N_SETB | |
4314 | && (type & N_TYPE) != N_SETA) | |
e135f41b | 4315 | { |
116c20d2 NC |
4316 | switch (discard) |
4317 | { | |
4318 | case discard_none: | |
4319 | case discard_sec_merge: | |
4320 | break; | |
4321 | case discard_l: | |
4322 | if ((type & N_STAB) == 0 | |
4323 | && bfd_is_local_label_name (input_bfd, name)) | |
4324 | skip = TRUE; | |
4325 | break; | |
4326 | case discard_all: | |
4327 | skip = TRUE; | |
4328 | break; | |
4329 | } | |
4330 | if (skip) | |
4331 | { | |
4332 | pass = FALSE; | |
4333 | continue; | |
4334 | } | |
e135f41b NC |
4335 | } |
4336 | ||
116c20d2 NC |
4337 | /* An N_BINCL symbol indicates the start of the stabs |
4338 | entries for a header file. We need to scan ahead to the | |
4339 | next N_EINCL symbol, ignoring nesting, adding up all the | |
4340 | characters in the symbol names, not including the file | |
4341 | numbers in types (the first number after an open | |
4342 | parenthesis). */ | |
4343 | if (type == N_BINCL) | |
e135f41b | 4344 | { |
116c20d2 NC |
4345 | struct external_nlist *incl_sym; |
4346 | int nest; | |
4347 | struct aout_link_includes_entry *incl_entry; | |
4348 | struct aout_link_includes_totals *t; | |
e135f41b | 4349 | |
116c20d2 NC |
4350 | val = 0; |
4351 | nest = 0; | |
4352 | for (incl_sym = sym + 1; incl_sym < sym_end; incl_sym++) | |
4353 | { | |
4354 | int incl_type; | |
e135f41b | 4355 | |
116c20d2 NC |
4356 | incl_type = H_GET_8 (input_bfd, incl_sym->e_type); |
4357 | if (incl_type == N_EINCL) | |
4358 | { | |
4359 | if (nest == 0) | |
4360 | break; | |
4361 | --nest; | |
4362 | } | |
4363 | else if (incl_type == N_BINCL) | |
4364 | ++nest; | |
4365 | else if (nest == 0) | |
4366 | { | |
4367 | const char *s; | |
e135f41b | 4368 | |
116c20d2 NC |
4369 | s = strings + GET_WORD (input_bfd, incl_sym->e_strx); |
4370 | for (; *s != '\0'; s++) | |
4371 | { | |
4372 | val += *s; | |
4373 | if (*s == '(') | |
4374 | { | |
4375 | /* Skip the file number. */ | |
4376 | ++s; | |
4377 | while (ISDIGIT (*s)) | |
4378 | ++s; | |
4379 | --s; | |
4380 | } | |
4381 | } | |
4382 | } | |
4383 | } | |
e135f41b | 4384 | |
116c20d2 | 4385 | /* If we have already included a header file with the |
07d6d2b8 AM |
4386 | same value, then replace this one with an N_EXCL |
4387 | symbol. */ | |
57402f1e NC |
4388 | copy = ! flaginfo->info->keep_memory; |
4389 | incl_entry = aout_link_includes_lookup (&flaginfo->includes, | |
116c20d2 NC |
4390 | name, TRUE, copy); |
4391 | if (incl_entry == NULL) | |
4392 | return FALSE; | |
4393 | for (t = incl_entry->totals; t != NULL; t = t->next) | |
4394 | if (t->total == val) | |
4395 | break; | |
4396 | if (t == NULL) | |
4397 | { | |
4398 | /* This is the first time we have seen this header | |
07d6d2b8 | 4399 | file with this set of stabs strings. */ |
57402f1e | 4400 | t = bfd_hash_allocate (&flaginfo->includes.root, |
116c20d2 NC |
4401 | sizeof *t); |
4402 | if (t == NULL) | |
4403 | return FALSE; | |
4404 | t->total = val; | |
4405 | t->next = incl_entry->totals; | |
4406 | incl_entry->totals = t; | |
4407 | } | |
4408 | else | |
4409 | { | |
4410 | int *incl_map; | |
e135f41b | 4411 | |
116c20d2 | 4412 | /* This is a duplicate header file. We must change |
07d6d2b8 AM |
4413 | it to be an N_EXCL entry, and mark all the |
4414 | included symbols to prevent outputting them. */ | |
116c20d2 | 4415 | type = N_EXCL; |
e135f41b | 4416 | |
116c20d2 NC |
4417 | nest = 0; |
4418 | for (incl_sym = sym + 1, incl_map = symbol_map + 1; | |
4419 | incl_sym < sym_end; | |
4420 | incl_sym++, incl_map++) | |
4421 | { | |
4422 | int incl_type; | |
e135f41b | 4423 | |
116c20d2 NC |
4424 | incl_type = H_GET_8 (input_bfd, incl_sym->e_type); |
4425 | if (incl_type == N_EINCL) | |
4426 | { | |
4427 | if (nest == 0) | |
4428 | { | |
4429 | *incl_map = -1; | |
4430 | break; | |
4431 | } | |
4432 | --nest; | |
4433 | } | |
4434 | else if (incl_type == N_BINCL) | |
4435 | ++nest; | |
4436 | else if (nest == 0) | |
4437 | *incl_map = -1; | |
4438 | } | |
4439 | } | |
4440 | } | |
e135f41b | 4441 | } |
e135f41b | 4442 | |
116c20d2 NC |
4443 | /* Copy this symbol into the list of symbols we are going to |
4444 | write out. */ | |
4445 | H_PUT_8 (output_bfd, type, outsym->e_type); | |
4446 | copy = FALSE; | |
57402f1e | 4447 | if (! flaginfo->info->keep_memory) |
e135f41b | 4448 | { |
116c20d2 NC |
4449 | /* name points into a string table which we are going to |
4450 | free. If there is a hash table entry, use that string. | |
4451 | Otherwise, copy name into memory. */ | |
4452 | if (h != NULL) | |
4453 | name = h->root.root.string; | |
4454 | else | |
4455 | copy = TRUE; | |
e135f41b | 4456 | } |
57402f1e | 4457 | strtab_index = add_to_stringtab (output_bfd, flaginfo->strtab, |
116c20d2 NC |
4458 | name, copy); |
4459 | if (strtab_index == (bfd_size_type) -1) | |
4460 | return FALSE; | |
4461 | PUT_WORD (output_bfd, strtab_index, outsym->e_strx); | |
4462 | PUT_WORD (output_bfd, val, outsym->e_value); | |
4463 | *symbol_map = obj_aout_external_sym_count (output_bfd); | |
4464 | ++obj_aout_external_sym_count (output_bfd); | |
4465 | ++outsym; | |
e135f41b NC |
4466 | } |
4467 | ||
116c20d2 | 4468 | /* Write out the output symbols we have just constructed. */ |
57402f1e | 4469 | if (outsym > flaginfo->output_syms) |
e135f41b NC |
4470 | { |
4471 | bfd_size_type size; | |
e135f41b | 4472 | |
57402f1e | 4473 | if (bfd_seek (output_bfd, flaginfo->symoff, SEEK_SET) != 0) |
b34976b6 | 4474 | return FALSE; |
57402f1e | 4475 | size = outsym - flaginfo->output_syms; |
116c20d2 | 4476 | size *= EXTERNAL_NLIST_SIZE; |
57402f1e | 4477 | if (bfd_bwrite ((void *) flaginfo->output_syms, size, output_bfd) != size) |
b34976b6 | 4478 | return FALSE; |
57402f1e | 4479 | flaginfo->symoff += size; |
e135f41b NC |
4480 | } |
4481 | ||
b34976b6 | 4482 | return TRUE; |
e135f41b | 4483 | } |
116c20d2 NC |
4484 | |
4485 | /* Write out a symbol that was not associated with an a.out input | |
4486 | object. */ | |
e135f41b | 4487 | |
edeb6e24 AM |
4488 | static bfd_vma |
4489 | bfd_getp32 (const void *p) | |
e135f41b | 4490 | { |
edeb6e24 AM |
4491 | const bfd_byte *addr = p; |
4492 | unsigned long v; | |
116c20d2 | 4493 | |
edeb6e24 AM |
4494 | v = (unsigned long) addr[1] << 24; |
4495 | v |= (unsigned long) addr[0] << 16; | |
4496 | v |= (unsigned long) addr[3] << 8; | |
4497 | v |= (unsigned long) addr[2]; | |
4498 | return v; | |
e135f41b NC |
4499 | } |
4500 | ||
4501 | #define COERCE32(x) (((bfd_signed_vma) (x) ^ 0x80000000) - 0x80000000) | |
4502 | ||
edeb6e24 AM |
4503 | static bfd_signed_vma |
4504 | bfd_getp_signed_32 (const void *p) | |
e135f41b | 4505 | { |
edeb6e24 AM |
4506 | const bfd_byte *addr = p; |
4507 | unsigned long v; | |
116c20d2 | 4508 | |
edeb6e24 AM |
4509 | v = (unsigned long) addr[1] << 24; |
4510 | v |= (unsigned long) addr[0] << 16; | |
4511 | v |= (unsigned long) addr[3] << 8; | |
4512 | v |= (unsigned long) addr[2]; | |
4513 | return COERCE32 (v); | |
e135f41b NC |
4514 | } |
4515 | ||
edeb6e24 AM |
4516 | static void |
4517 | bfd_putp32 (bfd_vma data, void *p) | |
e135f41b | 4518 | { |
edeb6e24 | 4519 | bfd_byte *addr = p; |
116c20d2 | 4520 | |
edeb6e24 AM |
4521 | addr[0] = (data >> 16) & 0xff; |
4522 | addr[1] = (data >> 24) & 0xff; | |
4523 | addr[2] = (data >> 0) & 0xff; | |
4524 | addr[3] = (data >> 8) & 0xff; | |
e135f41b | 4525 | } |
116c20d2 NC |
4526 | |
4527 | const bfd_target MY (vec) = | |
4528 | { | |
4529 | TARGETNAME, /* Name. */ | |
4530 | bfd_target_aout_flavour, | |
4531 | BFD_ENDIAN_LITTLE, /* Target byte order (little). */ | |
4532 | BFD_ENDIAN_LITTLE, /* Target headers byte order (little). */ | |
4533 | (HAS_RELOC | EXEC_P | /* Object flags. */ | |
4534 | HAS_LINENO | HAS_DEBUG | | |
4535 | HAS_SYMS | HAS_LOCALS | WP_TEXT), | |
4536 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA), | |
4537 | MY_symbol_leading_char, | |
4538 | AR_PAD_CHAR, /* AR_pad_char. */ | |
4539 | 15, /* AR_max_namelen. */ | |
0aabe54e | 4540 | 0, /* match priority. */ |
116c20d2 NC |
4541 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, |
4542 | bfd_getp32, bfd_getp_signed_32, bfd_putp32, | |
4543 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Data. */ | |
4544 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, | |
4545 | bfd_getp32, bfd_getp_signed_32, bfd_putp32, | |
4546 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Headers. */ | |
d00dd7dc AM |
4547 | { /* bfd_check_format. */ |
4548 | _bfd_dummy_target, | |
4549 | MY_object_p, | |
4550 | bfd_generic_archive_p, | |
4551 | MY_core_file_p | |
4552 | }, | |
4553 | { /* bfd_set_format. */ | |
4554 | _bfd_bool_bfd_false_error, | |
4555 | MY_mkobject, | |
4556 | _bfd_generic_mkarchive, | |
4557 | _bfd_bool_bfd_false_error | |
4558 | }, | |
4559 | { /* bfd_write_contents. */ | |
4560 | _bfd_bool_bfd_false_error, | |
4561 | MY_write_object_contents, | |
4562 | _bfd_write_archive_contents, | |
4563 | _bfd_bool_bfd_false_error | |
4564 | }, | |
4565 | ||
4566 | BFD_JUMP_TABLE_GENERIC (MY), | |
4567 | BFD_JUMP_TABLE_COPY (MY), | |
4568 | BFD_JUMP_TABLE_CORE (MY), | |
4569 | BFD_JUMP_TABLE_ARCHIVE (MY), | |
4570 | BFD_JUMP_TABLE_SYMBOLS (MY), | |
4571 | BFD_JUMP_TABLE_RELOCS (MY), | |
4572 | BFD_JUMP_TABLE_WRITE (MY), | |
4573 | BFD_JUMP_TABLE_LINK (MY), | |
4574 | BFD_JUMP_TABLE_DYNAMIC (MY), | |
116c20d2 NC |
4575 | |
4576 | /* Alternative_target. */ | |
4577 | NULL, | |
4578 | ||
4579 | (void *) MY_backend_data | |
4580 | }; |