Commit | Line | Data |
---|---|---|
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 \ | |
66 | && N_MAGIC(x) != ZMAGIC) | |
e135f41b | 67 | |
3db64b00 | 68 | #include "sysdep.h" |
7a6e0d89 | 69 | #include <limits.h> |
e135f41b NC |
70 | #include "bfd.h" |
71 | ||
72 | #define external_exec pdp11_external_exec | |
73 | struct pdp11_external_exec | |
116c20d2 NC |
74 | { |
75 | bfd_byte e_info[2]; /* Magic number. */ | |
76 | bfd_byte e_text[2]; /* Length of text section in bytes. */ | |
77 | bfd_byte e_data[2]; /* Length of data section in bytes. */ | |
78 | bfd_byte e_bss[2]; /* Length of bss area in bytes. */ | |
79 | bfd_byte e_syms[2]; /* Length of symbol table in bytes. */ | |
80 | bfd_byte e_entry[2]; /* Start address. */ | |
81 | bfd_byte e_unused[2]; /* Not used. */ | |
82 | bfd_byte e_flag[2]; /* Relocation info stripped. */ | |
07d6d2b8 | 83 | bfd_byte e_relocatable; /* Ugly hack. */ |
116c20d2 | 84 | }; |
e135f41b NC |
85 | |
86 | #define EXEC_BYTES_SIZE (8 * 2) | |
87 | ||
88 | #define A_MAGIC1 OMAGIC | |
89 | #define OMAGIC 0407 /* ...object file or impure executable. */ | |
90 | #define A_MAGIC2 NMAGIC | |
116c20d2 NC |
91 | #define NMAGIC 0410 /* Pure executable. */ |
92 | #define ZMAGIC 0413 /* Demand-paged executable. */ | |
93 | #define A_MAGIC3 0411 /* Separated I&D. */ | |
94 | #define A_MAGIC4 0405 /* Overlay. */ | |
95 | #define A_MAGIC5 0430 /* Auto-overlay (nonseparate). */ | |
96 | #define A_MAGIC6 0431 /* Auto-overlay (separate). */ | |
e135f41b NC |
97 | #define QMAGIC 0 |
98 | #define BMAGIC 0 | |
99 | ||
100 | #define A_FLAG_RELOC_STRIPPED 0x0001 | |
101 | ||
102 | #define external_nlist pdp11_external_nlist | |
103 | struct pdp11_external_nlist | |
116c20d2 NC |
104 | { |
105 | bfd_byte e_unused[2]; /* Unused. */ | |
106 | bfd_byte e_strx[2]; /* Index into string table of name. */ | |
107 | bfd_byte e_type[1]; /* Type of symbol. */ | |
108 | bfd_byte e_ovly[1]; /* Overlay number. */ | |
109 | bfd_byte e_value[2]; /* Value of symbol. */ | |
110 | }; | |
e135f41b NC |
111 | |
112 | #define EXTERNAL_NLIST_SIZE 8 | |
113 | ||
114 | #define N_TXTOFF(x) (EXEC_BYTES_SIZE) | |
bbb1afc8 AM |
115 | #define N_DATOFF(x) (N_TXTOFF(x) + (x)->a_text) |
116 | #define N_TRELOFF(x) (N_DATOFF(x) + (x)->a_data) | |
117 | #define N_DRELOFF(x) (N_TRELOFF(x) + (x)->a_trsize) | |
118 | #define N_SYMOFF(x) (N_DRELOFF(x) + (x)->a_drsize) | |
119 | #define N_STROFF(x) (N_SYMOFF(x) + (x)->a_syms) | |
e135f41b NC |
120 | |
121 | #define WRITE_HEADERS(abfd, execp) pdp11_aout_write_headers (abfd, execp) | |
122 | ||
e135f41b NC |
123 | #include "libbfd.h" |
124 | #include "libaout.h" | |
125 | ||
126 | #define SWAP_MAGIC(ext) bfd_getl16 (ext) | |
127 | ||
128 | #define MY_entry_is_text_address 1 | |
129 | ||
130 | #define MY_write_object_contents MY(write_object_contents) | |
116c20d2 | 131 | static bfd_boolean MY(write_object_contents) (bfd *); |
e135f41b NC |
132 | #define MY_text_includes_header 1 |
133 | ||
e135f41b NC |
134 | #define MY_BFD_TARGET |
135 | ||
136 | #include "aout-target.h" | |
137 | ||
116c20d2 | 138 | /* Start of modified aoutx.h. */ |
e135f41b NC |
139 | #define KEEPIT udata.i |
140 | ||
116c20d2 | 141 | #include <string.h> /* For strchr and friends. */ |
e135f41b NC |
142 | #include "bfd.h" |
143 | #include "sysdep.h" | |
3882b010 | 144 | #include "safe-ctype.h" |
e135f41b NC |
145 | #include "bfdlink.h" |
146 | ||
147 | #include "libaout.h" | |
e135f41b NC |
148 | #include "aout/aout64.h" |
149 | #include "aout/stab_gnu.h" | |
150 | #include "aout/ar.h" | |
151 | ||
152 | #undef N_TYPE | |
153 | #undef N_UNDF | |
154 | #undef N_ABS | |
155 | #undef N_TEXT | |
156 | #undef N_DATA | |
157 | #undef N_BSS | |
158 | #undef N_REG | |
159 | #undef N_FN | |
160 | #undef N_EXT | |
116c20d2 NC |
161 | #define N_TYPE 0x1f /* Type mask. */ |
162 | #define N_UNDF 0x00 /* Undefined. */ | |
163 | #define N_ABS 0x01 /* Absolute. */ | |
164 | #define N_TEXT 0x02 /* Text segment. */ | |
165 | #define N_DATA 0x03 /* Data segment. */ | |
166 | #define N_BSS 0x04 /* Bss segment. */ | |
167 | #define N_REG 0x14 /* Register symbol. */ | |
168 | #define N_FN 0x1f /* File name. */ | |
169 | #define N_EXT 0x20 /* External flag. */ | |
e135f41b NC |
170 | |
171 | #define RELOC_SIZE 2 | |
172 | ||
116c20d2 NC |
173 | #define RELFLG 0x0001 /* PC-relative flag. */ |
174 | #define RTYPE 0x000e /* Type mask. */ | |
175 | #define RIDXMASK 0xfff0 /* Index mask. */ | |
e135f41b | 176 | |
116c20d2 NC |
177 | #define RABS 0x00 /* Absolute. */ |
178 | #define RTEXT 0x02 /* Text. */ | |
179 | #define RDATA 0x04 /* Data. */ | |
180 | #define RBSS 0x06 /* Bss. */ | |
181 | #define REXT 0x08 /* External. */ | |
e135f41b NC |
182 | |
183 | #define RINDEX(x) (((x) & 0xfff0) >> 4) | |
184 | ||
e135f41b NC |
185 | #ifndef MY_final_link_relocate |
186 | #define MY_final_link_relocate _bfd_final_link_relocate | |
187 | #endif | |
188 | ||
189 | #ifndef MY_relocate_contents | |
190 | #define MY_relocate_contents _bfd_relocate_contents | |
191 | #endif | |
192 | ||
116c20d2 NC |
193 | /* A hash table used for header files with N_BINCL entries. */ |
194 | ||
195 | struct aout_link_includes_table | |
196 | { | |
197 | struct bfd_hash_table root; | |
198 | }; | |
199 | ||
200 | /* A linked list of totals that we have found for a particular header | |
201 | file. */ | |
202 | ||
203 | struct aout_link_includes_totals | |
204 | { | |
205 | struct aout_link_includes_totals *next; | |
206 | bfd_vma total; | |
207 | }; | |
208 | ||
209 | /* An entry in the header file hash table. */ | |
210 | ||
211 | struct aout_link_includes_entry | |
212 | { | |
213 | struct bfd_hash_entry root; | |
214 | /* List of totals we have found for this file. */ | |
215 | struct aout_link_includes_totals *totals; | |
216 | }; | |
217 | ||
218 | /* During the final link step we need to pass around a bunch of | |
219 | information, so we do it in an instance of this structure. */ | |
220 | ||
221 | struct aout_final_link_info | |
222 | { | |
223 | /* General link information. */ | |
224 | struct bfd_link_info *info; | |
225 | /* Output bfd. */ | |
226 | bfd *output_bfd; | |
227 | /* Reloc file positions. */ | |
228 | file_ptr treloff, dreloff; | |
229 | /* File position of symbols. */ | |
230 | file_ptr symoff; | |
231 | /* String table. */ | |
232 | struct bfd_strtab_hash *strtab; | |
233 | /* Header file hash table. */ | |
234 | struct aout_link_includes_table includes; | |
235 | /* A buffer large enough to hold the contents of any section. */ | |
236 | bfd_byte *contents; | |
237 | /* A buffer large enough to hold the relocs of any section. */ | |
238 | void * relocs; | |
239 | /* A buffer large enough to hold the symbol map of any input BFD. */ | |
240 | int *symbol_map; | |
241 | /* A buffer large enough to hold output symbols of any input BFD. */ | |
242 | struct external_nlist *output_syms; | |
243 | }; | |
244 | ||
e135f41b NC |
245 | reloc_howto_type howto_table_pdp11[] = |
246 | { | |
07d6d2b8 | 247 | /* type rs size bsz pcrel bitpos ovrf sf name part_inpl readmask setmask pcdone */ |
b34976b6 AM |
248 | HOWTO( 0, 0, 1, 16, FALSE, 0, complain_overflow_signed,0,"16", TRUE, 0x0000ffff,0x0000ffff, FALSE), |
249 | HOWTO( 1, 0, 1, 16, TRUE, 0, complain_overflow_signed,0,"DISP16", TRUE, 0x0000ffff,0x0000ffff, FALSE), | |
e135f41b NC |
250 | }; |
251 | ||
252 | #define TABLE_SIZE(TABLE) (sizeof(TABLE)/sizeof(TABLE[0])) | |
253 | ||
116c20d2 | 254 | |
13e570f8 | 255 | static bfd_boolean aout_link_check_archive_element (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, const char *, bfd_boolean *); |
07d6d2b8 AM |
256 | static bfd_boolean aout_link_add_object_symbols (bfd *, struct bfd_link_info *); |
257 | static bfd_boolean aout_link_add_symbols (bfd *, struct bfd_link_info *); | |
258 | static bfd_boolean aout_link_write_symbols (struct aout_final_link_info *, bfd *); | |
116c20d2 NC |
259 | |
260 | ||
e135f41b | 261 | reloc_howto_type * |
116c20d2 NC |
262 | NAME (aout, reloc_type_lookup) (bfd * abfd ATTRIBUTE_UNUSED, |
263 | bfd_reloc_code_real_type code) | |
e135f41b NC |
264 | { |
265 | switch (code) | |
266 | { | |
267 | case BFD_RELOC_16: | |
268 | return &howto_table_pdp11[0]; | |
269 | case BFD_RELOC_16_PCREL: | |
270 | return &howto_table_pdp11[1]; | |
271 | default: | |
116c20d2 | 272 | return NULL; |
e135f41b NC |
273 | } |
274 | } | |
275 | ||
157090f7 AM |
276 | reloc_howto_type * |
277 | NAME (aout, reloc_name_lookup) (bfd *abfd ATTRIBUTE_UNUSED, | |
278 | const char *r_name) | |
279 | { | |
280 | unsigned int i; | |
281 | ||
282 | for (i = 0; | |
283 | i < sizeof (howto_table_pdp11) / sizeof (howto_table_pdp11[0]); | |
284 | i++) | |
285 | if (howto_table_pdp11[i].name != NULL | |
286 | && strcasecmp (howto_table_pdp11[i].name, r_name) == 0) | |
287 | return &howto_table_pdp11[i]; | |
288 | ||
289 | return NULL; | |
290 | } | |
291 | ||
e135f41b | 292 | static int |
116c20d2 | 293 | pdp11_aout_write_headers (bfd *abfd, struct internal_exec *execp) |
e135f41b NC |
294 | { |
295 | struct external_exec exec_bytes; | |
e135f41b NC |
296 | |
297 | if (adata(abfd).magic == undecided_magic) | |
3a8c4a5b | 298 | NAME (aout, adjust_sizes_and_vmas) (abfd); |
e135f41b NC |
299 | |
300 | execp->a_syms = bfd_get_symcount (abfd) * EXTERNAL_NLIST_SIZE; | |
301 | execp->a_entry = bfd_get_start_address (abfd); | |
302 | ||
116c20d2 NC |
303 | if (obj_textsec (abfd)->reloc_count > 0 |
304 | || obj_datasec (abfd)->reloc_count > 0) | |
e135f41b NC |
305 | { |
306 | execp->a_trsize = execp->a_text; | |
307 | execp->a_drsize = execp->a_data; | |
308 | } | |
309 | else | |
310 | { | |
311 | execp->a_trsize = 0; | |
312 | execp->a_drsize = 0; | |
313 | } | |
314 | ||
116c20d2 | 315 | NAME (aout, swap_exec_header_out) (abfd, execp, & exec_bytes); |
e135f41b NC |
316 | |
317 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) | |
b34976b6 | 318 | return FALSE; |
e135f41b | 319 | |
116c20d2 | 320 | if (bfd_bwrite ((void *) &exec_bytes, (bfd_size_type) EXEC_BYTES_SIZE, abfd) |
e135f41b | 321 | != EXEC_BYTES_SIZE) |
b34976b6 | 322 | return FALSE; |
e135f41b | 323 | |
116c20d2 NC |
324 | /* Now write out reloc info, followed by syms and strings. */ |
325 | if (bfd_get_outsymbols (abfd) != NULL | |
e135f41b NC |
326 | && bfd_get_symcount (abfd) != 0) |
327 | { | |
bbb1afc8 | 328 | if (bfd_seek (abfd, (file_ptr) (N_SYMOFF (execp)), SEEK_SET) != 0) |
b34976b6 | 329 | return FALSE; |
e135f41b | 330 | |
116c20d2 | 331 | if (! NAME (aout, write_syms) (abfd)) |
b34976b6 | 332 | return FALSE; |
e135f41b NC |
333 | } |
334 | ||
116c20d2 NC |
335 | if (obj_textsec (abfd)->reloc_count > 0 |
336 | || obj_datasec (abfd)->reloc_count > 0) | |
e135f41b | 337 | { |
bbb1afc8 | 338 | if (bfd_seek (abfd, (file_ptr) (N_TRELOFF (execp)), SEEK_SET) != 0 |
116c20d2 | 339 | || !NAME (aout, squirt_out_relocs) (abfd, obj_textsec (abfd)) |
bbb1afc8 | 340 | || bfd_seek (abfd, (file_ptr) (N_DRELOFF (execp)), SEEK_SET) != 0 |
68ffbac6 | 341 | || !NAME (aout, squirt_out_relocs) (abfd, obj_datasec (abfd))) |
b34976b6 | 342 | return FALSE; |
e135f41b NC |
343 | } |
344 | ||
b34976b6 | 345 | return TRUE; |
dc810e39 | 346 | } |
e135f41b NC |
347 | |
348 | /* Write an object file. | |
349 | Section contents have already been written. We write the | |
350 | file header, symbols, and relocation. */ | |
351 | ||
b34976b6 | 352 | static bfd_boolean |
116c20d2 | 353 | MY(write_object_contents) (bfd *abfd) |
e135f41b NC |
354 | { |
355 | struct internal_exec *execp = exec_hdr (abfd); | |
356 | ||
357 | /* We must make certain that the magic number has been set. This | |
358 | will normally have been done by set_section_contents, but only if | |
359 | there actually are some section contents. */ | |
360 | if (! abfd->output_has_begun) | |
3a8c4a5b | 361 | NAME (aout, adjust_sizes_and_vmas) (abfd); |
e135f41b NC |
362 | |
363 | obj_reloc_entry_size (abfd) = RELOC_SIZE; | |
364 | ||
116c20d2 | 365 | return WRITE_HEADERS (abfd, execp); |
e135f41b NC |
366 | } |
367 | ||
116c20d2 NC |
368 | /* Swap the information in an executable header @var{raw_bytes} taken |
369 | from a raw byte stream memory image into the internal exec header | |
370 | structure "execp". */ | |
e135f41b NC |
371 | |
372 | #ifndef NAME_swap_exec_header_in | |
373 | void | |
116c20d2 NC |
374 | NAME (aout, swap_exec_header_in) (bfd *abfd, |
375 | struct external_exec *bytes, | |
376 | struct internal_exec *execp) | |
e135f41b | 377 | { |
e135f41b NC |
378 | /* The internal_exec structure has some fields that are unused in this |
379 | configuration (IE for i960), so ensure that all such uninitialized | |
380 | fields are zero'd out. There are places where two of these structs | |
116c20d2 NC |
381 | are memcmp'd, and thus the contents do matter. */ |
382 | memset ((void *) execp, 0, sizeof (struct internal_exec)); | |
e135f41b NC |
383 | /* Now fill in fields in the execp, from the bytes in the raw data. */ |
384 | execp->a_info = GET_MAGIC (abfd, bytes->e_info); | |
385 | execp->a_text = GET_WORD (abfd, bytes->e_text); | |
386 | execp->a_data = GET_WORD (abfd, bytes->e_data); | |
387 | execp->a_bss = GET_WORD (abfd, bytes->e_bss); | |
388 | execp->a_syms = GET_WORD (abfd, bytes->e_syms); | |
389 | execp->a_entry = GET_WORD (abfd, bytes->e_entry); | |
390 | ||
391 | if (GET_WORD (abfd, bytes->e_flag) & A_FLAG_RELOC_STRIPPED) | |
392 | { | |
393 | execp->a_trsize = 0; | |
394 | execp->a_drsize = 0; | |
395 | } | |
396 | else | |
397 | { | |
398 | execp->a_trsize = execp->a_text; | |
399 | execp->a_drsize = execp->a_data; | |
400 | } | |
401 | } | |
116c20d2 | 402 | #define NAME_swap_exec_header_in NAME (aout, swap_exec_header_in) |
e135f41b NC |
403 | #endif |
404 | ||
116c20d2 NC |
405 | /* Swap the information in an internal exec header structure |
406 | "execp" into the buffer "bytes" ready for writing to disk. */ | |
e135f41b | 407 | void |
116c20d2 NC |
408 | NAME (aout, swap_exec_header_out) (bfd *abfd, |
409 | struct internal_exec *execp, | |
410 | struct external_exec *bytes) | |
e135f41b | 411 | { |
116c20d2 | 412 | /* Now fill in fields in the raw data, from the fields in the exec struct. */ |
e135f41b NC |
413 | PUT_MAGIC (abfd, execp->a_info, bytes->e_info); |
414 | PUT_WORD (abfd, execp->a_text, bytes->e_text); | |
415 | PUT_WORD (abfd, execp->a_data, bytes->e_data); | |
416 | PUT_WORD (abfd, execp->a_bss, bytes->e_bss); | |
417 | PUT_WORD (abfd, execp->a_syms, bytes->e_syms); | |
418 | PUT_WORD (abfd, execp->a_entry, bytes->e_entry); | |
419 | PUT_WORD (abfd, 0, bytes->e_unused); | |
420 | ||
116c20d2 NC |
421 | if ((execp->a_trsize == 0 || execp->a_text == 0) |
422 | && (execp->a_drsize == 0 || execp->a_data == 0)) | |
423 | PUT_WORD (abfd, A_FLAG_RELOC_STRIPPED, bytes->e_flag); | |
424 | else if (execp->a_trsize == execp->a_text | |
425 | && execp->a_drsize == execp->a_data) | |
426 | PUT_WORD (abfd, 0, bytes->e_flag); | |
e135f41b NC |
427 | else |
428 | { | |
116c20d2 | 429 | /* TODO: print a proper warning message. */ |
e135f41b NC |
430 | fprintf (stderr, "BFD:%s:%d: internal error\n", __FILE__, __LINE__); |
431 | PUT_WORD (abfd, 0, bytes->e_flag); | |
432 | } | |
433 | } | |
434 | ||
435 | /* Make all the section for an a.out file. */ | |
436 | ||
b34976b6 | 437 | bfd_boolean |
116c20d2 | 438 | NAME (aout, make_sections) (bfd *abfd) |
e135f41b | 439 | { |
116c20d2 | 440 | if (obj_textsec (abfd) == NULL && bfd_make_section (abfd, ".text") == NULL) |
b34976b6 | 441 | return FALSE; |
116c20d2 | 442 | if (obj_datasec (abfd) == NULL && bfd_make_section (abfd, ".data") == NULL) |
b34976b6 | 443 | return FALSE; |
116c20d2 | 444 | if (obj_bsssec (abfd) == NULL && bfd_make_section (abfd, ".bss") == NULL) |
b34976b6 AM |
445 | return FALSE; |
446 | return TRUE; | |
e135f41b NC |
447 | } |
448 | ||
116c20d2 NC |
449 | /* Some a.out variant thinks that the file open in ABFD |
450 | checking is an a.out file. Do some more checking, and set up | |
451 | for access if it really is. Call back to the calling | |
452 | environment's "finish up" function just before returning, to | |
453 | handle any last-minute setup. */ | |
e135f41b NC |
454 | |
455 | const bfd_target * | |
116c20d2 NC |
456 | NAME (aout, some_aout_object_p) (bfd *abfd, |
457 | struct internal_exec *execp, | |
458 | const bfd_target *(*callback_to_real_object_p) (bfd *)) | |
e135f41b NC |
459 | { |
460 | struct aout_data_struct *rawptr, *oldrawptr; | |
461 | const bfd_target *result; | |
986f0783 | 462 | size_t amt = sizeof (struct aout_data_struct); |
e135f41b | 463 | |
116c20d2 | 464 | rawptr = bfd_zalloc (abfd, amt); |
e135f41b NC |
465 | if (rawptr == NULL) |
466 | return 0; | |
467 | ||
468 | oldrawptr = abfd->tdata.aout_data; | |
469 | abfd->tdata.aout_data = rawptr; | |
470 | ||
dc12032b | 471 | /* Copy the contents of the old tdata struct. */ |
e135f41b NC |
472 | if (oldrawptr != NULL) |
473 | *abfd->tdata.aout_data = *oldrawptr; | |
474 | ||
475 | abfd->tdata.aout_data->a.hdr = &rawptr->e; | |
116c20d2 | 476 | *(abfd->tdata.aout_data->a.hdr) = *execp; /* Copy in the internal_exec struct. */ |
e135f41b NC |
477 | execp = abfd->tdata.aout_data->a.hdr; |
478 | ||
116c20d2 | 479 | /* Set the file flags. */ |
e135f41b NC |
480 | abfd->flags = BFD_NO_FLAGS; |
481 | if (execp->a_drsize || execp->a_trsize) | |
482 | abfd->flags |= HAS_RELOC; | |
116c20d2 | 483 | /* Setting of EXEC_P has been deferred to the bottom of this function. */ |
e135f41b NC |
484 | if (execp->a_syms) |
485 | abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS; | |
bbb1afc8 | 486 | if (N_DYNAMIC (execp)) |
e135f41b NC |
487 | abfd->flags |= DYNAMIC; |
488 | ||
bbb1afc8 | 489 | if (N_MAGIC (execp) == ZMAGIC) |
e135f41b NC |
490 | { |
491 | abfd->flags |= D_PAGED | WP_TEXT; | |
492 | adata (abfd).magic = z_magic; | |
493 | } | |
bbb1afc8 | 494 | else if (N_MAGIC (execp) == NMAGIC) |
e135f41b NC |
495 | { |
496 | abfd->flags |= WP_TEXT; | |
497 | adata (abfd).magic = n_magic; | |
498 | } | |
bbb1afc8 | 499 | else if (N_MAGIC (execp) == OMAGIC) |
e135f41b NC |
500 | adata (abfd).magic = o_magic; |
501 | else | |
502 | { | |
503 | /* Should have been checked with N_BADMAG before this routine | |
504 | was called. */ | |
505 | abort (); | |
506 | } | |
507 | ||
ed48ec2e | 508 | abfd->start_address = execp->a_entry; |
e135f41b | 509 | |
116c20d2 | 510 | obj_aout_symbols (abfd) = NULL; |
ed48ec2e | 511 | abfd->symcount = execp->a_syms / sizeof (struct external_nlist); |
e135f41b NC |
512 | |
513 | /* The default relocation entry size is that of traditional V7 Unix. */ | |
514 | obj_reloc_entry_size (abfd) = RELOC_SIZE; | |
515 | ||
116c20d2 | 516 | /* The default symbol entry size is that of traditional Unix. */ |
e135f41b NC |
517 | obj_symbol_entry_size (abfd) = EXTERNAL_NLIST_SIZE; |
518 | ||
519 | #ifdef USE_MMAP | |
520 | bfd_init_window (&obj_aout_sym_window (abfd)); | |
521 | bfd_init_window (&obj_aout_string_window (abfd)); | |
522 | #endif | |
116c20d2 | 523 | |
e135f41b NC |
524 | obj_aout_external_syms (abfd) = NULL; |
525 | obj_aout_external_strings (abfd) = NULL; | |
526 | obj_aout_sym_hashes (abfd) = NULL; | |
527 | ||
116c20d2 | 528 | if (! NAME (aout, make_sections) (abfd)) |
e135f41b NC |
529 | return NULL; |
530 | ||
eea6121a AM |
531 | obj_datasec (abfd)->size = execp->a_data; |
532 | obj_bsssec (abfd)->size = execp->a_bss; | |
e135f41b NC |
533 | |
534 | obj_textsec (abfd)->flags = | |
535 | (execp->a_trsize != 0 | |
536 | ? (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS | SEC_RELOC) | |
537 | : (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS)); | |
538 | obj_datasec (abfd)->flags = | |
539 | (execp->a_drsize != 0 | |
540 | ? (SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS | SEC_RELOC) | |
541 | : (SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS)); | |
542 | obj_bsssec (abfd)->flags = SEC_ALLOC; | |
543 | ||
544 | #ifdef THIS_IS_ONLY_DOCUMENTATION | |
545 | /* The common code can't fill in these things because they depend | |
546 | on either the start address of the text segment, the rounding | |
547 | up of virtual addresses between segments, or the starting file | |
548 | position of the text segment -- all of which varies among different | |
549 | versions of a.out. */ | |
550 | ||
551 | /* Call back to the format-dependent code to fill in the rest of the | |
552 | fields and do any further cleanup. Things that should be filled | |
553 | in by the callback: */ | |
e135f41b NC |
554 | struct exec *execp = exec_hdr (abfd); |
555 | ||
bbb1afc8 | 556 | obj_textsec (abfd)->size = N_TXTSIZE (execp); |
116c20d2 | 557 | /* Data and bss are already filled in since they're so standard. */ |
e135f41b | 558 | |
116c20d2 | 559 | /* The virtual memory addresses of the sections. */ |
bbb1afc8 AM |
560 | obj_textsec (abfd)->vma = N_TXTADDR (execp); |
561 | obj_datasec (abfd)->vma = N_DATADDR (execp); | |
562 | obj_bsssec (abfd)->vma = N_BSSADDR (execp); | |
e135f41b | 563 | |
116c20d2 | 564 | /* The file offsets of the sections. */ |
bbb1afc8 AM |
565 | obj_textsec (abfd)->filepos = N_TXTOFF (execp); |
566 | obj_datasec (abfd)->filepos = N_DATOFF (execp); | |
e135f41b | 567 | |
116c20d2 | 568 | /* The file offsets of the relocation info. */ |
bbb1afc8 AM |
569 | obj_textsec (abfd)->rel_filepos = N_TRELOFF (execp); |
570 | obj_datasec (abfd)->rel_filepos = N_DRELOFF (execp); | |
e135f41b NC |
571 | |
572 | /* The file offsets of the string table and symbol table. */ | |
bbb1afc8 AM |
573 | obj_str_filepos (abfd) = N_STROFF (execp); |
574 | obj_sym_filepos (abfd) = N_SYMOFF (execp); | |
e135f41b NC |
575 | |
576 | /* Determine the architecture and machine type of the object file. */ | |
577 | abfd->obj_arch = bfd_arch_obscure; | |
578 | ||
579 | adata(abfd)->page_size = TARGET_PAGE_SIZE; | |
580 | adata(abfd)->segment_size = SEGMENT_SIZE; | |
581 | adata(abfd)->exec_bytes_size = EXEC_BYTES_SIZE; | |
582 | ||
583 | return abfd->xvec; | |
584 | ||
585 | /* The architecture is encoded in various ways in various a.out variants, | |
586 | or is not encoded at all in some of them. The relocation size depends | |
587 | on the architecture and the a.out variant. Finally, the return value | |
588 | is the bfd_target vector in use. If an error occurs, return zero and | |
589 | set bfd_error to the appropriate error code. | |
590 | ||
591 | Formats such as b.out, which have additional fields in the a.out | |
592 | header, should cope with them in this callback as well. */ | |
116c20d2 | 593 | #endif /* DOCUMENTATION */ |
e135f41b NC |
594 | |
595 | result = (*callback_to_real_object_p)(abfd); | |
596 | ||
597 | /* Now that the segment addresses have been worked out, take a better | |
598 | guess at whether the file is executable. If the entry point | |
599 | is within the text segment, assume it is. (This makes files | |
600 | executable even if their entry point address is 0, as long as | |
601 | their text starts at zero.). | |
602 | ||
603 | This test had to be changed to deal with systems where the text segment | |
604 | runs at a different location than the default. The problem is that the | |
605 | entry address can appear to be outside the text segment, thus causing an | |
606 | erroneous conclusion that the file isn't executable. | |
607 | ||
608 | To fix this, we now accept any non-zero entry point as an indication of | |
609 | executability. This will work most of the time, since only the linker | |
610 | sets the entry point, and that is likely to be non-zero for most systems. */ | |
611 | ||
612 | if (execp->a_entry != 0 | |
613 | || (execp->a_entry >= obj_textsec(abfd)->vma | |
eea6121a | 614 | && execp->a_entry < obj_textsec(abfd)->vma + obj_textsec(abfd)->size)) |
e135f41b NC |
615 | abfd->flags |= EXEC_P; |
616 | #ifdef STAT_FOR_EXEC | |
617 | else | |
618 | { | |
619 | struct stat stat_buf; | |
620 | ||
621 | /* The original heuristic doesn't work in some important cases. | |
07d6d2b8 AM |
622 | The a.out file has no information about the text start |
623 | address. For files (like kernels) linked to non-standard | |
624 | addresses (ld -Ttext nnn) the entry point may not be between | |
625 | the default text start (obj_textsec(abfd)->vma) and | |
626 | (obj_textsec(abfd)->vma) + text size. This is not just a mach | |
627 | issue. Many kernels are loaded at non standard addresses. */ | |
e135f41b NC |
628 | if (abfd->iostream != NULL |
629 | && (abfd->flags & BFD_IN_MEMORY) == 0 | |
630 | && (fstat(fileno((FILE *) (abfd->iostream)), &stat_buf) == 0) | |
631 | && ((stat_buf.st_mode & 0111) != 0)) | |
632 | abfd->flags |= EXEC_P; | |
633 | } | |
634 | #endif /* STAT_FOR_EXEC */ | |
635 | ||
0e71e495 | 636 | if (!result) |
e135f41b NC |
637 | { |
638 | free (rawptr); | |
639 | abfd->tdata.aout_data = oldrawptr; | |
640 | } | |
641 | return result; | |
642 | } | |
643 | ||
116c20d2 | 644 | /* Initialize ABFD for use with a.out files. */ |
e135f41b | 645 | |
b34976b6 | 646 | bfd_boolean |
116c20d2 | 647 | NAME (aout, mkobject) (bfd *abfd) |
e135f41b NC |
648 | { |
649 | struct aout_data_struct *rawptr; | |
986f0783 | 650 | size_t amt = sizeof (struct aout_data_struct); |
e135f41b NC |
651 | |
652 | bfd_set_error (bfd_error_system_call); | |
653 | ||
116c20d2 NC |
654 | /* Use an intermediate variable for clarity. */ |
655 | rawptr = bfd_zalloc (abfd, amt); | |
e135f41b NC |
656 | |
657 | if (rawptr == NULL) | |
b34976b6 | 658 | return FALSE; |
e135f41b NC |
659 | |
660 | abfd->tdata.aout_data = rawptr; | |
661 | exec_hdr (abfd) = &(rawptr->e); | |
662 | ||
116c20d2 NC |
663 | obj_textsec (abfd) = NULL; |
664 | obj_datasec (abfd) = NULL; | |
665 | obj_bsssec (abfd) = NULL; | |
e135f41b | 666 | |
b34976b6 | 667 | return TRUE; |
e135f41b NC |
668 | } |
669 | ||
116c20d2 NC |
670 | /* Keep track of machine architecture and machine type for |
671 | a.out's. Return the <<machine_type>> for a particular | |
672 | architecture and machine, or <<M_UNKNOWN>> if that exact architecture | |
673 | and machine can't be represented in a.out format. | |
e135f41b | 674 | |
116c20d2 NC |
675 | If the architecture is understood, machine type 0 (default) |
676 | is always understood. */ | |
e135f41b NC |
677 | |
678 | enum machine_type | |
116c20d2 NC |
679 | NAME (aout, machine_type) (enum bfd_architecture arch, |
680 | unsigned long machine, | |
681 | bfd_boolean *unknown) | |
e135f41b NC |
682 | { |
683 | enum machine_type arch_flags; | |
684 | ||
685 | arch_flags = M_UNKNOWN; | |
b34976b6 | 686 | *unknown = TRUE; |
e135f41b NC |
687 | |
688 | switch (arch) | |
689 | { | |
690 | case bfd_arch_sparc: | |
691 | if (machine == 0 | |
692 | || machine == bfd_mach_sparc | |
693 | || machine == bfd_mach_sparc_sparclite | |
694 | || machine == bfd_mach_sparc_v9) | |
695 | arch_flags = M_SPARC; | |
696 | else if (machine == bfd_mach_sparc_sparclet) | |
697 | arch_flags = M_SPARCLET; | |
698 | break; | |
699 | ||
e135f41b | 700 | case bfd_arch_i386: |
250d94fd AM |
701 | if (machine == 0 |
702 | || machine == bfd_mach_i386_i386 | |
703 | || machine == bfd_mach_i386_i386_intel_syntax) | |
704 | arch_flags = M_386; | |
e135f41b NC |
705 | break; |
706 | ||
e135f41b NC |
707 | case bfd_arch_arm: |
708 | if (machine == 0) arch_flags = M_ARM; | |
709 | break; | |
710 | ||
711 | case bfd_arch_mips: | |
712 | switch (machine) | |
713 | { | |
714 | case 0: | |
715 | case 2000: | |
716 | case bfd_mach_mips3000: | |
07d6d2b8 | 717 | arch_flags = M_MIPS1; |
e135f41b | 718 | break; |
116c20d2 | 719 | case bfd_mach_mips4000: /* MIPS3 */ |
e135f41b | 720 | case bfd_mach_mips4400: |
116c20d2 NC |
721 | case bfd_mach_mips8000: /* MIPS4 */ |
722 | case bfd_mach_mips6000: /* Real MIPS2: */ | |
07d6d2b8 | 723 | arch_flags = M_MIPS2; |
e135f41b NC |
724 | break; |
725 | default: | |
726 | arch_flags = M_UNKNOWN; | |
727 | break; | |
728 | } | |
729 | break; | |
730 | ||
731 | case bfd_arch_ns32k: | |
732 | switch (machine) | |
733 | { | |
07d6d2b8 | 734 | case 0: arch_flags = M_NS32532; break; |
e135f41b NC |
735 | case 32032: arch_flags = M_NS32032; break; |
736 | case 32532: arch_flags = M_NS32532; break; | |
737 | default: arch_flags = M_UNKNOWN; break; | |
738 | } | |
739 | break; | |
740 | ||
741 | case bfd_arch_pdp11: | |
742 | /* TODO: arch_flags = M_PDP11; */ | |
b34976b6 | 743 | *unknown = FALSE; |
e135f41b NC |
744 | break; |
745 | ||
746 | case bfd_arch_vax: | |
b34976b6 | 747 | *unknown = FALSE; |
e135f41b | 748 | break; |
dc810e39 | 749 | |
e135f41b NC |
750 | default: |
751 | arch_flags = M_UNKNOWN; | |
752 | } | |
753 | ||
754 | if (arch_flags != M_UNKNOWN) | |
b34976b6 | 755 | *unknown = FALSE; |
e135f41b NC |
756 | |
757 | return arch_flags; | |
758 | } | |
759 | ||
116c20d2 NC |
760 | /* Set the architecture and the machine of the ABFD to the |
761 | values ARCH and MACHINE. Verify that @ABFD's format | |
762 | can support the architecture required. */ | |
e135f41b | 763 | |
b34976b6 | 764 | bfd_boolean |
116c20d2 NC |
765 | NAME (aout, set_arch_mach) (bfd *abfd, |
766 | enum bfd_architecture arch, | |
767 | unsigned long machine) | |
e135f41b NC |
768 | { |
769 | if (! bfd_default_set_arch_mach (abfd, arch, machine)) | |
b34976b6 | 770 | return FALSE; |
e135f41b NC |
771 | |
772 | if (arch != bfd_arch_unknown) | |
773 | { | |
b34976b6 | 774 | bfd_boolean unknown; |
e135f41b | 775 | |
116c20d2 | 776 | NAME (aout, machine_type) (arch, machine, &unknown); |
e135f41b | 777 | if (unknown) |
b34976b6 | 778 | return FALSE; |
e135f41b NC |
779 | } |
780 | ||
781 | obj_reloc_entry_size (abfd) = RELOC_SIZE; | |
782 | ||
783 | return (*aout_backend_info(abfd)->set_sizes) (abfd); | |
784 | } | |
785 | ||
786 | static void | |
116c20d2 | 787 | adjust_o_magic (bfd *abfd, struct internal_exec *execp) |
e135f41b NC |
788 | { |
789 | file_ptr pos = adata (abfd).exec_bytes_size; | |
790 | bfd_vma vma = 0; | |
791 | int pad = 0; | |
792 | ||
793 | /* Text. */ | |
794 | obj_textsec (abfd)->filepos = pos; | |
795 | if (! obj_textsec (abfd)->user_set_vma) | |
796 | obj_textsec (abfd)->vma = vma; | |
797 | else | |
798 | vma = obj_textsec (abfd)->vma; | |
799 | ||
eea6121a AM |
800 | pos += obj_textsec (abfd)->size; |
801 | vma += obj_textsec (abfd)->size; | |
e135f41b NC |
802 | |
803 | /* Data. */ | |
804 | if (!obj_datasec (abfd)->user_set_vma) | |
805 | { | |
eea6121a | 806 | obj_textsec (abfd)->size += pad; |
e135f41b NC |
807 | pos += pad; |
808 | vma += pad; | |
809 | obj_datasec (abfd)->vma = vma; | |
810 | } | |
811 | else | |
812 | vma = obj_datasec (abfd)->vma; | |
813 | obj_datasec (abfd)->filepos = pos; | |
eea6121a AM |
814 | pos += obj_datasec (abfd)->size; |
815 | vma += obj_datasec (abfd)->size; | |
e135f41b NC |
816 | |
817 | /* BSS. */ | |
818 | if (! obj_bsssec (abfd)->user_set_vma) | |
819 | { | |
eea6121a | 820 | obj_datasec (abfd)->size += pad; |
e135f41b NC |
821 | pos += pad; |
822 | vma += pad; | |
823 | obj_bsssec (abfd)->vma = vma; | |
824 | } | |
825 | else | |
826 | { | |
08da05b0 | 827 | /* The VMA of the .bss section is set by the VMA of the |
07d6d2b8 AM |
828 | .data section plus the size of the .data section. We may |
829 | need to add padding bytes to make this true. */ | |
e135f41b NC |
830 | pad = obj_bsssec (abfd)->vma - vma; |
831 | if (pad > 0) | |
832 | { | |
eea6121a | 833 | obj_datasec (abfd)->size += pad; |
e135f41b NC |
834 | pos += pad; |
835 | } | |
836 | } | |
837 | obj_bsssec (abfd)->filepos = pos; | |
838 | ||
839 | /* Fix up the exec header. */ | |
eea6121a AM |
840 | execp->a_text = obj_textsec (abfd)->size; |
841 | execp->a_data = obj_datasec (abfd)->size; | |
842 | execp->a_bss = obj_bsssec (abfd)->size; | |
bbb1afc8 | 843 | N_SET_MAGIC (execp, OMAGIC); |
e135f41b NC |
844 | } |
845 | ||
846 | static void | |
116c20d2 | 847 | adjust_z_magic (bfd *abfd, struct internal_exec *execp) |
e135f41b NC |
848 | { |
849 | bfd_size_type data_pad, text_pad; | |
850 | file_ptr text_end; | |
dc810e39 | 851 | const struct aout_backend_data *abdp; |
e135f41b | 852 | int ztih; /* Nonzero if text includes exec header. */ |
dc810e39 | 853 | |
e135f41b NC |
854 | abdp = aout_backend_info (abfd); |
855 | ||
856 | /* Text. */ | |
857 | ztih = (abdp != NULL | |
858 | && (abdp->text_includes_header | |
859 | || obj_aout_subformat (abfd) == q_magic_format)); | |
860 | obj_textsec(abfd)->filepos = (ztih | |
861 | ? adata(abfd).exec_bytes_size | |
862 | : adata(abfd).zmagic_disk_block_size); | |
863 | if (! obj_textsec(abfd)->user_set_vma) | |
864 | { | |
865 | /* ?? Do we really need to check for relocs here? */ | |
866 | obj_textsec(abfd)->vma = ((abfd->flags & HAS_RELOC) | |
867 | ? 0 | |
868 | : (ztih | |
869 | ? (abdp->default_text_vma | |
870 | + adata (abfd).exec_bytes_size) | |
871 | : abdp->default_text_vma)); | |
872 | text_pad = 0; | |
873 | } | |
874 | else | |
875 | { | |
876 | /* The .text section is being loaded at an unusual address. We | |
07d6d2b8 AM |
877 | may need to pad it such that the .data section starts at a page |
878 | boundary. */ | |
e135f41b NC |
879 | if (ztih) |
880 | text_pad = ((obj_textsec (abfd)->filepos - obj_textsec (abfd)->vma) | |
881 | & (adata (abfd).page_size - 1)); | |
882 | else | |
883 | text_pad = ((- obj_textsec (abfd)->vma) | |
884 | & (adata (abfd).page_size - 1)); | |
885 | } | |
886 | ||
887 | /* Find start of data. */ | |
888 | if (ztih) | |
889 | { | |
eea6121a | 890 | text_end = obj_textsec (abfd)->filepos + obj_textsec (abfd)->size; |
e135f41b NC |
891 | text_pad += BFD_ALIGN (text_end, adata (abfd).page_size) - text_end; |
892 | } | |
893 | else | |
894 | { | |
895 | /* Note that if page_size == zmagic_disk_block_size, then | |
896 | filepos == page_size, and this case is the same as the ztih | |
897 | case. */ | |
eea6121a | 898 | text_end = obj_textsec (abfd)->size; |
e135f41b NC |
899 | text_pad += BFD_ALIGN (text_end, adata (abfd).page_size) - text_end; |
900 | text_end += obj_textsec (abfd)->filepos; | |
901 | } | |
902 | ||
eea6121a | 903 | obj_textsec (abfd)->size += text_pad; |
e135f41b NC |
904 | text_end += text_pad; |
905 | ||
906 | /* Data. */ | |
907 | if (!obj_datasec(abfd)->user_set_vma) | |
908 | { | |
909 | bfd_vma vma; | |
eea6121a | 910 | vma = obj_textsec(abfd)->vma + obj_textsec(abfd)->size; |
e135f41b NC |
911 | obj_datasec(abfd)->vma = BFD_ALIGN (vma, adata(abfd).segment_size); |
912 | } | |
913 | if (abdp && abdp->zmagic_mapped_contiguous) | |
914 | { | |
915 | text_pad = (obj_datasec(abfd)->vma | |
916 | - obj_textsec(abfd)->vma | |
eea6121a AM |
917 | - obj_textsec(abfd)->size); |
918 | obj_textsec(abfd)->size += text_pad; | |
e135f41b NC |
919 | } |
920 | obj_datasec (abfd)->filepos = (obj_textsec (abfd)->filepos | |
eea6121a | 921 | + obj_textsec (abfd)->size); |
dc810e39 | 922 | |
e135f41b | 923 | /* Fix up exec header while we're at it. */ |
eea6121a | 924 | execp->a_text = obj_textsec(abfd)->size; |
e135f41b NC |
925 | if (ztih && (!abdp || (abdp && !abdp->exec_header_not_counted))) |
926 | execp->a_text += adata(abfd).exec_bytes_size; | |
bbb1afc8 | 927 | N_SET_MAGIC (execp, ZMAGIC); |
e135f41b NC |
928 | |
929 | /* Spec says data section should be rounded up to page boundary. */ | |
eea6121a AM |
930 | obj_datasec(abfd)->size |
931 | = align_power (obj_datasec(abfd)->size, | |
e135f41b | 932 | obj_bsssec(abfd)->alignment_power); |
eea6121a | 933 | execp->a_data = BFD_ALIGN (obj_datasec(abfd)->size, |
e135f41b | 934 | adata(abfd).page_size); |
eea6121a | 935 | data_pad = execp->a_data - obj_datasec(abfd)->size; |
e135f41b NC |
936 | |
937 | /* BSS. */ | |
938 | if (!obj_bsssec(abfd)->user_set_vma) | |
939 | obj_bsssec(abfd)->vma = (obj_datasec(abfd)->vma | |
eea6121a | 940 | + obj_datasec(abfd)->size); |
e135f41b NC |
941 | /* If the BSS immediately follows the data section and extra space |
942 | in the page is left after the data section, fudge data | |
943 | in the header so that the bss section looks smaller by that | |
944 | amount. We'll start the bss section there, and lie to the OS. | |
945 | (Note that a linker script, as well as the above assignment, | |
946 | could have explicitly set the BSS vma to immediately follow | |
947 | the data section.) */ | |
948 | if (align_power (obj_bsssec(abfd)->vma, obj_bsssec(abfd)->alignment_power) | |
eea6121a AM |
949 | == obj_datasec(abfd)->vma + obj_datasec(abfd)->size) |
950 | execp->a_bss = (data_pad > obj_bsssec(abfd)->size) ? 0 : | |
951 | obj_bsssec(abfd)->size - data_pad; | |
e135f41b | 952 | else |
eea6121a | 953 | execp->a_bss = obj_bsssec(abfd)->size; |
e135f41b NC |
954 | } |
955 | ||
956 | static void | |
116c20d2 | 957 | adjust_n_magic (bfd *abfd, struct internal_exec *execp) |
e135f41b NC |
958 | { |
959 | file_ptr pos = adata(abfd).exec_bytes_size; | |
960 | bfd_vma vma = 0; | |
961 | int pad; | |
dc810e39 | 962 | |
e135f41b NC |
963 | /* Text. */ |
964 | obj_textsec(abfd)->filepos = pos; | |
965 | if (!obj_textsec(abfd)->user_set_vma) | |
966 | obj_textsec(abfd)->vma = vma; | |
967 | else | |
968 | vma = obj_textsec(abfd)->vma; | |
eea6121a AM |
969 | pos += obj_textsec(abfd)->size; |
970 | vma += obj_textsec(abfd)->size; | |
e135f41b NC |
971 | |
972 | /* Data. */ | |
973 | obj_datasec(abfd)->filepos = pos; | |
974 | if (!obj_datasec(abfd)->user_set_vma) | |
975 | obj_datasec(abfd)->vma = BFD_ALIGN (vma, adata(abfd).segment_size); | |
976 | vma = obj_datasec(abfd)->vma; | |
dc810e39 | 977 | |
e135f41b | 978 | /* Since BSS follows data immediately, see if it needs alignment. */ |
eea6121a | 979 | vma += obj_datasec(abfd)->size; |
e135f41b | 980 | pad = align_power (vma, obj_bsssec(abfd)->alignment_power) - vma; |
eea6121a AM |
981 | obj_datasec(abfd)->size += pad; |
982 | pos += obj_datasec(abfd)->size; | |
e135f41b NC |
983 | |
984 | /* BSS. */ | |
985 | if (!obj_bsssec(abfd)->user_set_vma) | |
986 | obj_bsssec(abfd)->vma = vma; | |
987 | else | |
988 | vma = obj_bsssec(abfd)->vma; | |
989 | ||
990 | /* Fix up exec header. */ | |
eea6121a AM |
991 | execp->a_text = obj_textsec(abfd)->size; |
992 | execp->a_data = obj_datasec(abfd)->size; | |
993 | execp->a_bss = obj_bsssec(abfd)->size; | |
bbb1afc8 | 994 | N_SET_MAGIC (execp, NMAGIC); |
e135f41b NC |
995 | } |
996 | ||
b34976b6 | 997 | bfd_boolean |
3a8c4a5b | 998 | NAME (aout, adjust_sizes_and_vmas) (bfd *abfd) |
e135f41b NC |
999 | { |
1000 | struct internal_exec *execp = exec_hdr (abfd); | |
1001 | ||
116c20d2 | 1002 | if (! NAME (aout, make_sections) (abfd)) |
b34976b6 | 1003 | return FALSE; |
e135f41b NC |
1004 | |
1005 | if (adata(abfd).magic != undecided_magic) | |
b34976b6 | 1006 | return TRUE; |
e135f41b | 1007 | |
eea6121a AM |
1008 | obj_textsec(abfd)->size = |
1009 | align_power(obj_textsec(abfd)->size, | |
e135f41b NC |
1010 | obj_textsec(abfd)->alignment_power); |
1011 | ||
e135f41b NC |
1012 | /* Rule (heuristic) for when to pad to a new page. Note that there |
1013 | are (at least) two ways demand-paged (ZMAGIC) files have been | |
1014 | handled. Most Berkeley-based systems start the text segment at | |
1015 | (TARGET_PAGE_SIZE). However, newer versions of SUNOS start the text | |
1016 | segment right after the exec header; the latter is counted in the | |
1017 | text segment size, and is paged in by the kernel with the rest of | |
1018 | the text. */ | |
1019 | ||
1020 | /* This perhaps isn't the right way to do this, but made it simpler for me | |
1021 | to understand enough to implement it. Better would probably be to go | |
1022 | right from BFD flags to alignment/positioning characteristics. But the | |
1023 | old code was sloppy enough about handling the flags, and had enough | |
1024 | other magic, that it was a little hard for me to understand. I think | |
1025 | I understand it better now, but I haven't time to do the cleanup this | |
1026 | minute. */ | |
1027 | ||
1028 | if (abfd->flags & WP_TEXT) | |
1029 | adata(abfd).magic = n_magic; | |
1030 | else | |
1031 | adata(abfd).magic = o_magic; | |
1032 | ||
1033 | #ifdef BFD_AOUT_DEBUG /* requires gcc2 */ | |
1034 | #if __GNUC__ >= 2 | |
1035 | fprintf (stderr, "%s text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x,%x>\n", | |
1036 | ({ char *str; | |
1037 | switch (adata(abfd).magic) { | |
1038 | case n_magic: str = "NMAGIC"; break; | |
1039 | case o_magic: str = "OMAGIC"; break; | |
1040 | case z_magic: str = "ZMAGIC"; break; | |
1041 | default: abort (); | |
1042 | } | |
1043 | str; | |
1044 | }), | |
eea6121a | 1045 | obj_textsec(abfd)->vma, obj_textsec(abfd)->size, |
07d6d2b8 | 1046 | obj_textsec(abfd)->alignment_power, |
eea6121a | 1047 | obj_datasec(abfd)->vma, obj_datasec(abfd)->size, |
07d6d2b8 | 1048 | obj_datasec(abfd)->alignment_power, |
eea6121a | 1049 | obj_bsssec(abfd)->vma, obj_bsssec(abfd)->size, |
07d6d2b8 | 1050 | obj_bsssec(abfd)->alignment_power); |
e135f41b NC |
1051 | #endif |
1052 | #endif | |
1053 | ||
1054 | switch (adata(abfd).magic) | |
1055 | { | |
1056 | case o_magic: | |
1057 | adjust_o_magic (abfd, execp); | |
1058 | break; | |
1059 | case z_magic: | |
1060 | adjust_z_magic (abfd, execp); | |
1061 | break; | |
1062 | case n_magic: | |
1063 | adjust_n_magic (abfd, execp); | |
1064 | break; | |
1065 | default: | |
1066 | abort (); | |
1067 | } | |
1068 | ||
1069 | #ifdef BFD_AOUT_DEBUG | |
1070 | fprintf (stderr, " text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x>\n", | |
eea6121a | 1071 | obj_textsec(abfd)->vma, obj_textsec(abfd)->size, |
07d6d2b8 | 1072 | obj_textsec(abfd)->filepos, |
eea6121a | 1073 | obj_datasec(abfd)->vma, obj_datasec(abfd)->size, |
07d6d2b8 | 1074 | obj_datasec(abfd)->filepos, |
eea6121a | 1075 | obj_bsssec(abfd)->vma, obj_bsssec(abfd)->size); |
e135f41b NC |
1076 | #endif |
1077 | ||
b34976b6 | 1078 | return TRUE; |
e135f41b NC |
1079 | } |
1080 | ||
116c20d2 | 1081 | /* Called by the BFD in response to a bfd_make_section request. */ |
e135f41b | 1082 | |
b34976b6 | 1083 | bfd_boolean |
116c20d2 | 1084 | NAME (aout, new_section_hook) (bfd *abfd, asection *newsect) |
e135f41b | 1085 | { |
116c20d2 | 1086 | /* Align to double at least. */ |
e135f41b NC |
1087 | newsect->alignment_power = bfd_get_arch_info(abfd)->section_align_power; |
1088 | ||
e135f41b NC |
1089 | if (bfd_get_format (abfd) == bfd_object) |
1090 | { | |
1091 | if (obj_textsec (abfd) == NULL | |
f592407e | 1092 | && !strcmp (newsect->name, ".text")) |
e135f41b NC |
1093 | { |
1094 | obj_textsec(abfd)= newsect; | |
1095 | newsect->target_index = N_TEXT; | |
e135f41b | 1096 | } |
f592407e AM |
1097 | else if (obj_datasec (abfd) == NULL |
1098 | && !strcmp (newsect->name, ".data")) | |
1099 | { | |
1100 | obj_datasec (abfd) = newsect; | |
1101 | newsect->target_index = N_DATA; | |
1102 | } | |
1103 | else if (obj_bsssec (abfd) == NULL | |
1104 | && !strcmp (newsect->name, ".bss")) | |
1105 | { | |
1106 | obj_bsssec (abfd) = newsect; | |
1107 | newsect->target_index = N_BSS; | |
1108 | } | |
1109 | } | |
e135f41b | 1110 | |
116c20d2 | 1111 | /* We allow more than three sections internally. */ |
f592407e | 1112 | return _bfd_generic_new_section_hook (abfd, newsect); |
e135f41b NC |
1113 | } |
1114 | ||
b34976b6 | 1115 | bfd_boolean |
116c20d2 NC |
1116 | NAME (aout, set_section_contents) (bfd *abfd, |
1117 | sec_ptr section, | |
1118 | const void * location, | |
1119 | file_ptr offset, | |
1120 | bfd_size_type count) | |
e135f41b | 1121 | { |
e135f41b NC |
1122 | if (! abfd->output_has_begun) |
1123 | { | |
3a8c4a5b | 1124 | if (! NAME (aout, adjust_sizes_and_vmas) (abfd)) |
b34976b6 | 1125 | return FALSE; |
e135f41b NC |
1126 | } |
1127 | ||
1128 | if (section == obj_bsssec (abfd)) | |
1129 | { | |
1130 | bfd_set_error (bfd_error_no_contents); | |
b34976b6 | 1131 | return FALSE; |
e135f41b NC |
1132 | } |
1133 | ||
1134 | if (section != obj_textsec (abfd) | |
1135 | && section != obj_datasec (abfd)) | |
1136 | { | |
4eca0228 | 1137 | _bfd_error_handler |
695344c0 | 1138 | /* xgettext:c-format */ |
871b3ab2 | 1139 | (_("%pB: can not represent section `%pA' in a.out object file format"), |
dae82561 | 1140 | abfd, section); |
e135f41b | 1141 | bfd_set_error (bfd_error_nonrepresentable_section); |
b34976b6 | 1142 | return FALSE; |
e135f41b NC |
1143 | } |
1144 | ||
1145 | if (count != 0) | |
1146 | { | |
1147 | if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0 | |
dc810e39 | 1148 | || bfd_bwrite (location, count, abfd) != count) |
b34976b6 | 1149 | return FALSE; |
e135f41b NC |
1150 | } |
1151 | ||
b34976b6 | 1152 | return TRUE; |
e135f41b NC |
1153 | } |
1154 | \f | |
1155 | /* Read the external symbols from an a.out file. */ | |
1156 | ||
b34976b6 | 1157 | static bfd_boolean |
116c20d2 | 1158 | aout_get_external_symbols (bfd *abfd) |
e135f41b | 1159 | { |
116c20d2 | 1160 | if (obj_aout_external_syms (abfd) == NULL) |
e135f41b NC |
1161 | { |
1162 | bfd_size_type count; | |
1163 | struct external_nlist *syms; | |
1164 | ||
1165 | count = exec_hdr (abfd)->a_syms / EXTERNAL_NLIST_SIZE; | |
1166 | ||
37e3922e NC |
1167 | /* PR 17512: file: 011f5a08. */ |
1168 | if (count == 0) | |
49987e5c NC |
1169 | { |
1170 | obj_aout_external_syms (abfd) = NULL; | |
1171 | obj_aout_external_sym_count (abfd) = count; | |
1172 | return TRUE; | |
1173 | } | |
1174 | ||
e135f41b | 1175 | #ifdef USE_MMAP |
82e51918 AM |
1176 | if (! bfd_get_file_window (abfd, obj_sym_filepos (abfd), |
1177 | exec_hdr (abfd)->a_syms, | |
b34976b6 AM |
1178 | &obj_aout_sym_window (abfd), TRUE)) |
1179 | return FALSE; | |
e135f41b NC |
1180 | syms = (struct external_nlist *) obj_aout_sym_window (abfd).data; |
1181 | #else | |
1182 | /* We allocate using malloc to make the values easy to free | |
1183 | later on. If we put them on the objalloc it might not be | |
1184 | possible to free them. */ | |
2bb3687b AM |
1185 | if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0) |
1186 | return FALSE; | |
1187 | syms = (struct external_nlist *) | |
1188 | _bfd_malloc_and_read (abfd, count * EXTERNAL_NLIST_SIZE, | |
1189 | count * EXTERNAL_NLIST_SIZE); | |
116c20d2 | 1190 | if (syms == NULL && count != 0) |
b34976b6 | 1191 | return FALSE; |
e135f41b NC |
1192 | #endif |
1193 | ||
1194 | obj_aout_external_syms (abfd) = syms; | |
1195 | obj_aout_external_sym_count (abfd) = count; | |
1196 | } | |
dc810e39 | 1197 | |
e135f41b NC |
1198 | if (obj_aout_external_strings (abfd) == NULL |
1199 | && exec_hdr (abfd)->a_syms != 0) | |
1200 | { | |
1201 | unsigned char string_chars[BYTES_IN_LONG]; | |
1202 | bfd_size_type stringsize; | |
1203 | char *strings; | |
1204 | ||
1205 | /* Get the size of the strings. */ | |
1206 | if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0 | |
116c20d2 | 1207 | || (bfd_bread ((void *) string_chars, (bfd_size_type) BYTES_IN_LONG, |
dc810e39 | 1208 | abfd) != BYTES_IN_LONG)) |
b34976b6 | 1209 | return FALSE; |
dc810e39 | 1210 | stringsize = H_GET_32 (abfd, string_chars); |
e135f41b NC |
1211 | |
1212 | #ifdef USE_MMAP | |
82e51918 | 1213 | if (! bfd_get_file_window (abfd, obj_str_filepos (abfd), stringsize, |
b34976b6 AM |
1214 | &obj_aout_string_window (abfd), TRUE)) |
1215 | return FALSE; | |
e135f41b NC |
1216 | strings = (char *) obj_aout_string_window (abfd).data; |
1217 | #else | |
116c20d2 | 1218 | strings = bfd_malloc (stringsize + 1); |
e135f41b | 1219 | if (strings == NULL) |
b34976b6 | 1220 | return FALSE; |
e135f41b NC |
1221 | |
1222 | /* Skip space for the string count in the buffer for convenience | |
1223 | when using indexes. */ | |
dc810e39 | 1224 | if (bfd_bread (strings + 4, stringsize - 4, abfd) != stringsize - 4) |
e135f41b NC |
1225 | { |
1226 | free (strings); | |
b34976b6 | 1227 | return FALSE; |
e135f41b NC |
1228 | } |
1229 | #endif | |
e135f41b NC |
1230 | /* Ensure that a zero index yields an empty string. */ |
1231 | strings[0] = '\0'; | |
1232 | ||
1233 | strings[stringsize - 1] = 0; | |
1234 | ||
1235 | obj_aout_external_strings (abfd) = strings; | |
1236 | obj_aout_external_string_size (abfd) = stringsize; | |
1237 | } | |
1238 | ||
b34976b6 | 1239 | return TRUE; |
e135f41b NC |
1240 | } |
1241 | ||
1242 | /* Translate an a.out symbol into a BFD symbol. The desc, other, type | |
1243 | and symbol->value fields of CACHE_PTR will be set from the a.out | |
1244 | nlist structure. This function is responsible for setting | |
1245 | symbol->flags and symbol->section, and adjusting symbol->value. */ | |
1246 | ||
b34976b6 | 1247 | static bfd_boolean |
116c20d2 NC |
1248 | translate_from_native_sym_flags (bfd *abfd, |
1249 | aout_symbol_type *cache_ptr) | |
e135f41b NC |
1250 | { |
1251 | flagword visible; | |
1252 | ||
1253 | if (cache_ptr->type == N_FN) | |
1254 | { | |
1255 | asection *sec; | |
1256 | ||
1257 | /* This is a debugging symbol. */ | |
e135f41b NC |
1258 | cache_ptr->symbol.flags = BSF_DEBUGGING; |
1259 | ||
1260 | /* Work out the symbol section. */ | |
1261 | switch (cache_ptr->type & N_TYPE) | |
1262 | { | |
1263 | case N_TEXT: | |
1264 | case N_FN: | |
1265 | sec = obj_textsec (abfd); | |
1266 | break; | |
1267 | case N_DATA: | |
1268 | sec = obj_datasec (abfd); | |
1269 | break; | |
1270 | case N_BSS: | |
1271 | sec = obj_bsssec (abfd); | |
1272 | break; | |
1273 | default: | |
1274 | case N_ABS: | |
1275 | sec = bfd_abs_section_ptr; | |
1276 | break; | |
1277 | } | |
1278 | ||
1279 | cache_ptr->symbol.section = sec; | |
1280 | cache_ptr->symbol.value -= sec->vma; | |
1281 | ||
b34976b6 | 1282 | return TRUE; |
e135f41b NC |
1283 | } |
1284 | ||
1285 | /* Get the default visibility. This does not apply to all types, so | |
1286 | we just hold it in a local variable to use if wanted. */ | |
1287 | if ((cache_ptr->type & N_EXT) == 0) | |
1288 | visible = BSF_LOCAL; | |
1289 | else | |
1290 | visible = BSF_GLOBAL; | |
1291 | ||
1292 | switch (cache_ptr->type) | |
1293 | { | |
1294 | default: | |
1295 | case N_ABS: case N_ABS | N_EXT: | |
1296 | cache_ptr->symbol.section = bfd_abs_section_ptr; | |
1297 | cache_ptr->symbol.flags = visible; | |
1298 | break; | |
1299 | ||
1300 | case N_UNDF | N_EXT: | |
1301 | if (cache_ptr->symbol.value != 0) | |
1302 | { | |
1303 | /* This is a common symbol. */ | |
1304 | cache_ptr->symbol.flags = BSF_GLOBAL; | |
1305 | cache_ptr->symbol.section = bfd_com_section_ptr; | |
1306 | } | |
1307 | else | |
1308 | { | |
1309 | cache_ptr->symbol.flags = 0; | |
1310 | cache_ptr->symbol.section = bfd_und_section_ptr; | |
1311 | } | |
1312 | break; | |
1313 | ||
1314 | case N_TEXT: case N_TEXT | N_EXT: | |
1315 | cache_ptr->symbol.section = obj_textsec (abfd); | |
1316 | cache_ptr->symbol.value -= cache_ptr->symbol.section->vma; | |
1317 | cache_ptr->symbol.flags = visible; | |
1318 | break; | |
1319 | ||
1320 | case N_DATA: case N_DATA | N_EXT: | |
1321 | cache_ptr->symbol.section = obj_datasec (abfd); | |
1322 | cache_ptr->symbol.value -= cache_ptr->symbol.section->vma; | |
1323 | cache_ptr->symbol.flags = visible; | |
1324 | break; | |
1325 | ||
1326 | case N_BSS: case N_BSS | N_EXT: | |
1327 | cache_ptr->symbol.section = obj_bsssec (abfd); | |
1328 | cache_ptr->symbol.value -= cache_ptr->symbol.section->vma; | |
1329 | cache_ptr->symbol.flags = visible; | |
1330 | break; | |
1331 | } | |
1332 | ||
b34976b6 | 1333 | return TRUE; |
e135f41b NC |
1334 | } |
1335 | ||
1336 | /* Set the fields of SYM_POINTER according to CACHE_PTR. */ | |
1337 | ||
b34976b6 | 1338 | static bfd_boolean |
116c20d2 NC |
1339 | translate_to_native_sym_flags (bfd *abfd, |
1340 | asymbol *cache_ptr, | |
1341 | struct external_nlist *sym_pointer) | |
e135f41b NC |
1342 | { |
1343 | bfd_vma value = cache_ptr->value; | |
1344 | asection *sec; | |
1345 | bfd_vma off; | |
1346 | ||
1347 | /* Mask out any existing type bits in case copying from one section | |
1348 | to another. */ | |
1349 | sym_pointer->e_type[0] &= ~N_TYPE; | |
1350 | ||
e6f7f6d1 | 1351 | sec = bfd_asymbol_section (cache_ptr); |
e135f41b NC |
1352 | off = 0; |
1353 | ||
1354 | if (sec == NULL) | |
1355 | { | |
1356 | /* This case occurs, e.g., for the *DEBUG* section of a COFF | |
1357 | file. */ | |
4eca0228 | 1358 | _bfd_error_handler |
695344c0 | 1359 | /* xgettext:c-format */ |
871b3ab2 | 1360 | (_("%pB: can not represent section for symbol `%s' in a.out object file format"), |
d003868e | 1361 | abfd, cache_ptr->name != NULL ? cache_ptr->name : "*unknown*"); |
e135f41b | 1362 | bfd_set_error (bfd_error_nonrepresentable_section); |
b34976b6 | 1363 | return FALSE; |
e135f41b NC |
1364 | } |
1365 | ||
1366 | if (sec->output_section != NULL) | |
1367 | { | |
1368 | off = sec->output_offset; | |
1369 | sec = sec->output_section; | |
1370 | } | |
1371 | ||
1372 | if (bfd_is_abs_section (sec)) | |
1373 | sym_pointer->e_type[0] |= N_ABS; | |
1374 | else if (sec == obj_textsec (abfd)) | |
1375 | sym_pointer->e_type[0] |= N_TEXT; | |
1376 | else if (sec == obj_datasec (abfd)) | |
1377 | sym_pointer->e_type[0] |= N_DATA; | |
1378 | else if (sec == obj_bsssec (abfd)) | |
1379 | sym_pointer->e_type[0] |= N_BSS; | |
1380 | else if (bfd_is_und_section (sec)) | |
1381 | sym_pointer->e_type[0] = N_UNDF | N_EXT; | |
1382 | else if (bfd_is_com_section (sec)) | |
1383 | sym_pointer->e_type[0] = N_UNDF | N_EXT; | |
1384 | else | |
1385 | { | |
4eca0228 | 1386 | _bfd_error_handler |
695344c0 | 1387 | /* xgettext:c-format */ |
871b3ab2 | 1388 | (_("%pB: can not represent section `%pA' in a.out object file format"), |
d003868e | 1389 | abfd, sec); |
e135f41b | 1390 | bfd_set_error (bfd_error_nonrepresentable_section); |
b34976b6 | 1391 | return FALSE; |
e135f41b NC |
1392 | } |
1393 | ||
1394 | /* Turn the symbol from section relative to absolute again */ | |
1395 | value += sec->vma + off; | |
1396 | ||
1397 | if ((cache_ptr->flags & BSF_DEBUGGING) != 0) | |
1398 | sym_pointer->e_type[0] = ((aout_symbol_type *) cache_ptr)->type; | |
1399 | else if ((cache_ptr->flags & BSF_GLOBAL) != 0) | |
1400 | sym_pointer->e_type[0] |= N_EXT; | |
1401 | ||
e135f41b NC |
1402 | PUT_WORD(abfd, value, sym_pointer->e_value); |
1403 | ||
b34976b6 | 1404 | return TRUE; |
e135f41b NC |
1405 | } |
1406 | \f | |
1407 | /* Native-level interface to symbols. */ | |
1408 | ||
1409 | asymbol * | |
116c20d2 | 1410 | NAME (aout, make_empty_symbol) (bfd *abfd) |
e135f41b | 1411 | { |
986f0783 | 1412 | size_t amt = sizeof (aout_symbol_type); |
d3ce72d0 | 1413 | aout_symbol_type *new_symbol_type = bfd_zalloc (abfd, amt); |
116c20d2 | 1414 | |
d3ce72d0 | 1415 | if (!new_symbol_type) |
e135f41b | 1416 | return NULL; |
d3ce72d0 | 1417 | new_symbol_type->symbol.the_bfd = abfd; |
e135f41b | 1418 | |
d3ce72d0 | 1419 | return &new_symbol_type->symbol; |
e135f41b NC |
1420 | } |
1421 | ||
1422 | /* Translate a set of internal symbols into external symbols. */ | |
1423 | ||
b34976b6 | 1424 | bfd_boolean |
116c20d2 NC |
1425 | NAME (aout, translate_symbol_table) (bfd *abfd, |
1426 | aout_symbol_type *in, | |
1427 | struct external_nlist *ext, | |
1428 | bfd_size_type count, | |
1429 | char *str, | |
1430 | bfd_size_type strsize, | |
1431 | bfd_boolean dynamic) | |
e135f41b NC |
1432 | { |
1433 | struct external_nlist *ext_end; | |
1434 | ||
1435 | ext_end = ext + count; | |
1436 | for (; ext < ext_end; ext++, in++) | |
1437 | { | |
1438 | bfd_vma x; | |
1439 | ||
1440 | x = GET_WORD (abfd, ext->e_strx); | |
1441 | in->symbol.the_bfd = abfd; | |
1442 | ||
1443 | /* For the normal symbols, the zero index points at the number | |
1444 | of bytes in the string table but is to be interpreted as the | |
1445 | null string. For the dynamic symbols, the number of bytes in | |
1446 | the string table is stored in the __DYNAMIC structure and the | |
1447 | zero index points at an actual string. */ | |
1448 | if (x == 0 && ! dynamic) | |
1449 | in->symbol.name = ""; | |
1450 | else if (x < strsize) | |
1451 | in->symbol.name = str + x; | |
1452 | else | |
b34976b6 | 1453 | return FALSE; |
e135f41b NC |
1454 | |
1455 | in->symbol.value = GET_SWORD (abfd, ext->e_value); | |
116c20d2 | 1456 | /* TODO: is 0 a safe value here? */ |
e135f41b NC |
1457 | in->desc = 0; |
1458 | in->other = 0; | |
dc810e39 | 1459 | in->type = H_GET_8 (abfd, ext->e_type); |
e135f41b NC |
1460 | in->symbol.udata.p = NULL; |
1461 | ||
1462 | if (! translate_from_native_sym_flags (abfd, in)) | |
b34976b6 | 1463 | return FALSE; |
e135f41b NC |
1464 | |
1465 | if (dynamic) | |
1466 | in->symbol.flags |= BSF_DYNAMIC; | |
1467 | } | |
1468 | ||
b34976b6 | 1469 | return TRUE; |
e135f41b NC |
1470 | } |
1471 | ||
1472 | /* We read the symbols into a buffer, which is discarded when this | |
1473 | function exits. We read the strings into a buffer large enough to | |
116c20d2 | 1474 | hold them all plus all the cached symbol entries. */ |
e135f41b | 1475 | |
b34976b6 | 1476 | bfd_boolean |
116c20d2 | 1477 | NAME (aout, slurp_symbol_table) (bfd *abfd) |
e135f41b NC |
1478 | { |
1479 | struct external_nlist *old_external_syms; | |
1480 | aout_symbol_type *cached; | |
dc810e39 | 1481 | bfd_size_type cached_size; |
e135f41b | 1482 | |
116c20d2 NC |
1483 | /* If there's no work to be done, don't do any. */ |
1484 | if (obj_aout_symbols (abfd) != NULL) | |
b34976b6 | 1485 | return TRUE; |
e135f41b NC |
1486 | |
1487 | old_external_syms = obj_aout_external_syms (abfd); | |
1488 | ||
1489 | if (! aout_get_external_symbols (abfd)) | |
b34976b6 | 1490 | return FALSE; |
e135f41b | 1491 | |
dc810e39 AM |
1492 | cached_size = obj_aout_external_sym_count (abfd); |
1493 | cached_size *= sizeof (aout_symbol_type); | |
116c20d2 | 1494 | cached = bfd_zmalloc (cached_size); |
e135f41b | 1495 | if (cached == NULL && cached_size != 0) |
b34976b6 | 1496 | return FALSE; |
e135f41b NC |
1497 | |
1498 | /* Convert from external symbol information to internal. */ | |
116c20d2 | 1499 | if (! (NAME (aout, translate_symbol_table) |
e135f41b NC |
1500 | (abfd, cached, |
1501 | obj_aout_external_syms (abfd), | |
1502 | obj_aout_external_sym_count (abfd), | |
1503 | obj_aout_external_strings (abfd), | |
1504 | obj_aout_external_string_size (abfd), | |
b34976b6 | 1505 | FALSE))) |
e135f41b NC |
1506 | { |
1507 | free (cached); | |
b34976b6 | 1508 | return FALSE; |
e135f41b NC |
1509 | } |
1510 | ||
ed48ec2e | 1511 | abfd->symcount = obj_aout_external_sym_count (abfd); |
e135f41b NC |
1512 | |
1513 | obj_aout_symbols (abfd) = cached; | |
1514 | ||
1515 | /* It is very likely that anybody who calls this function will not | |
1516 | want the external symbol information, so if it was allocated | |
1517 | because of our call to aout_get_external_symbols, we free it up | |
1518 | right away to save space. */ | |
116c20d2 NC |
1519 | if (old_external_syms == NULL |
1520 | && obj_aout_external_syms (abfd) != NULL) | |
e135f41b NC |
1521 | { |
1522 | #ifdef USE_MMAP | |
1523 | bfd_free_window (&obj_aout_sym_window (abfd)); | |
1524 | #else | |
1525 | free (obj_aout_external_syms (abfd)); | |
1526 | #endif | |
1527 | obj_aout_external_syms (abfd) = NULL; | |
1528 | } | |
1529 | ||
b34976b6 | 1530 | return TRUE; |
e135f41b NC |
1531 | } |
1532 | \f | |
1533 | /* We use a hash table when writing out symbols so that we only write | |
1534 | out a particular string once. This helps particularly when the | |
1535 | linker writes out stabs debugging entries, because each different | |
1536 | contributing object file tends to have many duplicate stabs | |
1537 | strings. | |
1538 | ||
1539 | This hash table code breaks dbx on SunOS 4.1.3, so we don't do it | |
1540 | if BFD_TRADITIONAL_FORMAT is set. */ | |
1541 | ||
e135f41b NC |
1542 | /* Get the index of a string in a strtab, adding it if it is not |
1543 | already present. */ | |
1544 | ||
1545 | static INLINE bfd_size_type | |
116c20d2 NC |
1546 | add_to_stringtab (bfd *abfd, |
1547 | struct bfd_strtab_hash *tab, | |
1548 | const char *str, | |
1549 | bfd_boolean copy) | |
e135f41b | 1550 | { |
b34976b6 | 1551 | bfd_boolean hash; |
91d6fa6a | 1552 | bfd_size_type str_index; |
e135f41b NC |
1553 | |
1554 | /* An index of 0 always means the empty string. */ | |
1555 | if (str == 0 || *str == '\0') | |
1556 | return 0; | |
1557 | ||
1558 | /* Don't hash if BFD_TRADITIONAL_FORMAT is set, because SunOS dbx | |
1559 | doesn't understand a hashed string table. */ | |
b34976b6 | 1560 | hash = TRUE; |
e135f41b | 1561 | if ((abfd->flags & BFD_TRADITIONAL_FORMAT) != 0) |
b34976b6 | 1562 | hash = FALSE; |
e135f41b | 1563 | |
91d6fa6a | 1564 | str_index = _bfd_stringtab_add (tab, str, hash, copy); |
e135f41b | 1565 | |
91d6fa6a | 1566 | if (str_index != (bfd_size_type) -1) |
116c20d2 NC |
1567 | /* Add BYTES_IN_LONG to the return value to account for the |
1568 | space taken up by the string table size. */ | |
91d6fa6a | 1569 | str_index += BYTES_IN_LONG; |
e135f41b | 1570 | |
91d6fa6a | 1571 | return str_index; |
e135f41b NC |
1572 | } |
1573 | ||
1574 | /* Write out a strtab. ABFD is already at the right location in the | |
1575 | file. */ | |
1576 | ||
b34976b6 | 1577 | static bfd_boolean |
116c20d2 | 1578 | emit_stringtab (bfd *abfd, struct bfd_strtab_hash *tab) |
e135f41b NC |
1579 | { |
1580 | bfd_byte buffer[BYTES_IN_LONG]; | |
1581 | ||
1582 | /* The string table starts with the size. */ | |
dc810e39 | 1583 | H_PUT_32 (abfd, _bfd_stringtab_size (tab) + BYTES_IN_LONG, buffer); |
116c20d2 | 1584 | if (bfd_bwrite ((void *) buffer, (bfd_size_type) BYTES_IN_LONG, abfd) |
dc810e39 | 1585 | != BYTES_IN_LONG) |
b34976b6 | 1586 | return FALSE; |
e135f41b NC |
1587 | |
1588 | return _bfd_stringtab_emit (abfd, tab); | |
1589 | } | |
1590 | \f | |
b34976b6 | 1591 | bfd_boolean |
116c20d2 | 1592 | NAME (aout, write_syms) (bfd *abfd) |
e135f41b NC |
1593 | { |
1594 | unsigned int count ; | |
1595 | asymbol **generic = bfd_get_outsymbols (abfd); | |
1596 | struct bfd_strtab_hash *strtab; | |
1597 | ||
1598 | strtab = _bfd_stringtab_init (); | |
1599 | if (strtab == NULL) | |
b34976b6 | 1600 | return FALSE; |
e135f41b NC |
1601 | |
1602 | for (count = 0; count < bfd_get_symcount (abfd); count++) | |
1603 | { | |
1604 | asymbol *g = generic[count]; | |
1605 | bfd_size_type indx; | |
1606 | struct external_nlist nsp; | |
1607 | ||
dc810e39 | 1608 | PUT_WORD (abfd, 0, nsp.e_unused); |
e135f41b | 1609 | |
b34976b6 | 1610 | indx = add_to_stringtab (abfd, strtab, g->name, FALSE); |
e135f41b NC |
1611 | if (indx == (bfd_size_type) -1) |
1612 | goto error_return; | |
dc810e39 | 1613 | PUT_WORD (abfd, indx, nsp.e_strx); |
e135f41b NC |
1614 | |
1615 | if (bfd_asymbol_flavour(g) == abfd->xvec->flavour) | |
dc810e39 | 1616 | H_PUT_8 (abfd, aout_symbol(g)->type, nsp.e_type); |
e135f41b | 1617 | else |
dc810e39 | 1618 | H_PUT_8 (abfd, 0, nsp.e_type); |
e135f41b NC |
1619 | |
1620 | if (! translate_to_native_sym_flags (abfd, g, &nsp)) | |
1621 | goto error_return; | |
1622 | ||
dc810e39 | 1623 | H_PUT_8 (abfd, 0, nsp.e_ovly); |
e135f41b | 1624 | |
116c20d2 | 1625 | if (bfd_bwrite ((void *)&nsp, (bfd_size_type) EXTERNAL_NLIST_SIZE, abfd) |
e135f41b NC |
1626 | != EXTERNAL_NLIST_SIZE) |
1627 | goto error_return; | |
1628 | ||
1629 | /* NB: `KEEPIT' currently overlays `udata.p', so set this only | |
1630 | here, at the end. */ | |
1631 | g->KEEPIT = count; | |
1632 | } | |
1633 | ||
1634 | if (! emit_stringtab (abfd, strtab)) | |
1635 | goto error_return; | |
1636 | ||
1637 | _bfd_stringtab_free (strtab); | |
1638 | ||
b34976b6 | 1639 | return TRUE; |
e135f41b NC |
1640 | |
1641 | error_return: | |
1642 | _bfd_stringtab_free (strtab); | |
b34976b6 | 1643 | return FALSE; |
e135f41b NC |
1644 | } |
1645 | ||
1646 | \f | |
1647 | long | |
116c20d2 | 1648 | NAME (aout, canonicalize_symtab) (bfd *abfd, asymbol **location) |
e135f41b | 1649 | { |
116c20d2 NC |
1650 | unsigned int counter = 0; |
1651 | aout_symbol_type *symbase; | |
e135f41b | 1652 | |
116c20d2 NC |
1653 | if (!NAME (aout, slurp_symbol_table) (abfd)) |
1654 | return -1; | |
e135f41b | 1655 | |
116c20d2 NC |
1656 | for (symbase = obj_aout_symbols (abfd); counter++ < bfd_get_symcount (abfd);) |
1657 | *(location++) = (asymbol *)(symbase++); | |
1658 | *location++ =0; | |
1659 | return bfd_get_symcount (abfd); | |
e135f41b NC |
1660 | } |
1661 | ||
1662 | \f | |
116c20d2 | 1663 | /* Output extended relocation information to a file in target byte order. */ |
e135f41b | 1664 | |
116c20d2 NC |
1665 | static void |
1666 | pdp11_aout_swap_reloc_out (bfd *abfd, arelent *g, bfd_byte *natptr) | |
e135f41b NC |
1667 | { |
1668 | int r_index; | |
1669 | int r_pcrel; | |
1670 | int reloc_entry; | |
1671 | int r_type; | |
1672 | asymbol *sym = *(g->sym_ptr_ptr); | |
1673 | asection *output_section = sym->section->output_section; | |
1674 | ||
1675 | if (g->addend != 0) | |
1676 | fprintf (stderr, "BFD: can't do this reloc addend stuff\n"); | |
1677 | ||
1678 | r_pcrel = g->howto->pc_relative; | |
1679 | ||
1680 | if (bfd_is_abs_section (output_section)) | |
1681 | r_type = RABS; | |
1682 | else if (output_section == obj_textsec (abfd)) | |
1683 | r_type = RTEXT; | |
1684 | else if (output_section == obj_datasec (abfd)) | |
1685 | r_type = RDATA; | |
1686 | else if (output_section == obj_bsssec (abfd)) | |
1687 | r_type = RBSS; | |
1688 | else if (bfd_is_und_section (output_section)) | |
1689 | r_type = REXT; | |
1690 | else if (bfd_is_com_section (output_section)) | |
1691 | r_type = REXT; | |
1692 | else | |
1693 | r_type = -1; | |
1694 | ||
1695 | BFD_ASSERT (r_type != -1); | |
1696 | ||
1697 | if (r_type == RABS) | |
1698 | r_index = 0; | |
1699 | else | |
1700 | r_index = (*(g->sym_ptr_ptr))->KEEPIT; | |
1701 | ||
e135f41b NC |
1702 | reloc_entry = r_index << 4 | r_type | r_pcrel; |
1703 | ||
9dadfa79 | 1704 | PUT_WORD (abfd, reloc_entry, natptr); |
e135f41b NC |
1705 | } |
1706 | ||
1707 | /* BFD deals internally with all things based from the section they're | |
1708 | in. so, something in 10 bytes into a text section with a base of | |
1709 | 50 would have a symbol (.text+10) and know .text vma was 50. | |
1710 | ||
1711 | Aout keeps all it's symbols based from zero, so the symbol would | |
1712 | contain 60. This macro subs the base of each section from the value | |
1713 | to give the true offset from the section */ | |
1714 | ||
1715 | ||
07d6d2b8 AM |
1716 | #define MOVE_ADDRESS(ad) \ |
1717 | if (r_extern) \ | |
e135f41b NC |
1718 | { \ |
1719 | /* Undefined symbol. */ \ | |
1720 | cache_ptr->sym_ptr_ptr = symbols + r_index; \ | |
1721 | cache_ptr->addend = ad; \ | |
1722 | } \ | |
1723 | else \ | |
1724 | { \ | |
07d6d2b8 | 1725 | /* Defined, section relative. replace symbol with pointer to \ |
e135f41b NC |
1726 | symbol which points to section. */ \ |
1727 | switch (r_index) \ | |
1728 | { \ | |
1729 | case N_TEXT: \ | |
1730 | case N_TEXT | N_EXT: \ | |
1731 | cache_ptr->sym_ptr_ptr = obj_textsec (abfd)->symbol_ptr_ptr; \ | |
1732 | cache_ptr->addend = ad - su->textsec->vma; \ | |
1733 | break; \ | |
1734 | case N_DATA: \ | |
1735 | case N_DATA | N_EXT: \ | |
1736 | cache_ptr->sym_ptr_ptr = obj_datasec (abfd)->symbol_ptr_ptr; \ | |
1737 | cache_ptr->addend = ad - su->datasec->vma; \ | |
1738 | break; \ | |
1739 | case N_BSS: \ | |
1740 | case N_BSS | N_EXT: \ | |
1741 | cache_ptr->sym_ptr_ptr = obj_bsssec (abfd)->symbol_ptr_ptr; \ | |
1742 | cache_ptr->addend = ad - su->bsssec->vma; \ | |
1743 | break; \ | |
1744 | default: \ | |
1745 | case N_ABS: \ | |
1746 | case N_ABS | N_EXT: \ | |
1747 | cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; \ | |
1748 | cache_ptr->addend = ad; \ | |
1749 | break; \ | |
1750 | } \ | |
dc810e39 | 1751 | } |
e135f41b | 1752 | |
116c20d2 | 1753 | static void |
07d6d2b8 AM |
1754 | pdp11_aout_swap_reloc_in (bfd * abfd, |
1755 | bfd_byte * bytes, | |
1756 | arelent * cache_ptr, | |
1757 | bfd_size_type offset, | |
1758 | asymbol ** symbols, | |
1759 | bfd_size_type symcount) | |
e135f41b NC |
1760 | { |
1761 | struct aoutdata *su = &(abfd->tdata.aout_data->a); | |
1762 | unsigned int r_index; | |
1763 | int reloc_entry; | |
1764 | int r_extern; | |
1765 | int r_pcrel; | |
1766 | ||
116c20d2 | 1767 | reloc_entry = GET_WORD (abfd, (void *) bytes); |
e135f41b NC |
1768 | |
1769 | r_pcrel = reloc_entry & RELFLG; | |
1770 | ||
1771 | cache_ptr->address = offset; | |
1772 | cache_ptr->howto = howto_table_pdp11 + (r_pcrel ? 1 : 0); | |
1773 | ||
1774 | if ((reloc_entry & RTYPE) == RABS) | |
1775 | r_index = N_ABS; | |
1776 | else | |
1777 | r_index = RINDEX (reloc_entry); | |
1778 | ||
1779 | /* r_extern reflects whether the symbol the reloc is against is | |
1780 | local or global. */ | |
1781 | r_extern = (reloc_entry & RTYPE) == REXT; | |
1782 | ||
1783 | if (r_extern && r_index > symcount) | |
1784 | { | |
1785 | /* We could arrange to return an error, but it might be useful | |
07d6d2b8 | 1786 | to see the file even if it is bad. */ |
e135f41b NC |
1787 | r_extern = 0; |
1788 | r_index = N_ABS; | |
1789 | } | |
1790 | ||
1791 | MOVE_ADDRESS(0); | |
1792 | } | |
1793 | ||
1794 | /* Read and swap the relocs for a section. */ | |
1795 | ||
b34976b6 | 1796 | bfd_boolean |
116c20d2 | 1797 | NAME (aout, slurp_reloc_table) (bfd *abfd, sec_ptr asect, asymbol **symbols) |
e135f41b | 1798 | { |
9dadfa79 | 1799 | bfd_byte *rptr; |
dc810e39 | 1800 | bfd_size_type count; |
e135f41b | 1801 | bfd_size_type reloc_size; |
116c20d2 | 1802 | void * relocs; |
e135f41b NC |
1803 | arelent *reloc_cache; |
1804 | size_t each_size; | |
1805 | unsigned int counter = 0; | |
1806 | arelent *cache_ptr; | |
1807 | ||
1808 | if (asect->relocation) | |
b34976b6 | 1809 | return TRUE; |
e135f41b NC |
1810 | |
1811 | if (asect->flags & SEC_CONSTRUCTOR) | |
b34976b6 | 1812 | return TRUE; |
e135f41b NC |
1813 | |
1814 | if (asect == obj_datasec (abfd)) | |
1815 | reloc_size = exec_hdr(abfd)->a_drsize; | |
1816 | else if (asect == obj_textsec (abfd)) | |
1817 | reloc_size = exec_hdr(abfd)->a_trsize; | |
1818 | else if (asect == obj_bsssec (abfd)) | |
1819 | reloc_size = 0; | |
1820 | else | |
1821 | { | |
1822 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 1823 | return FALSE; |
e135f41b NC |
1824 | } |
1825 | ||
1826 | if (bfd_seek (abfd, asect->rel_filepos, SEEK_SET) != 0) | |
b34976b6 | 1827 | return FALSE; |
2bb3687b | 1828 | relocs = _bfd_malloc_and_read (abfd, reloc_size, reloc_size); |
e135f41b | 1829 | if (relocs == NULL && reloc_size != 0) |
b34976b6 | 1830 | return FALSE; |
e135f41b | 1831 | |
2bb3687b | 1832 | each_size = obj_reloc_entry_size (abfd); |
e135f41b NC |
1833 | count = reloc_size / each_size; |
1834 | ||
116c20d2 | 1835 | /* Count the number of NON-ZERO relocs, this is the count we want. */ |
e135f41b NC |
1836 | { |
1837 | unsigned int real_count = 0; | |
1838 | ||
1839 | for (counter = 0; counter < count; counter++) | |
1840 | { | |
1841 | int x; | |
1842 | ||
973ffd63 | 1843 | x = GET_WORD (abfd, (char *) relocs + each_size * counter); |
e135f41b NC |
1844 | if (x != 0) |
1845 | real_count++; | |
1846 | } | |
1847 | ||
1848 | count = real_count; | |
1849 | } | |
1850 | ||
116c20d2 | 1851 | reloc_cache = bfd_zmalloc (count * sizeof (arelent)); |
e135f41b | 1852 | if (reloc_cache == NULL && count != 0) |
b34976b6 | 1853 | return FALSE; |
e135f41b NC |
1854 | |
1855 | cache_ptr = reloc_cache; | |
1856 | ||
9dadfa79 | 1857 | rptr = relocs; |
e135f41b NC |
1858 | for (counter = 0; |
1859 | counter < count; | |
9dadfa79 | 1860 | counter++, rptr += RELOC_SIZE, cache_ptr++) |
e135f41b | 1861 | { |
116c20d2 | 1862 | while (GET_WORD (abfd, (void *) rptr) == 0) |
e135f41b | 1863 | { |
9dadfa79 | 1864 | rptr += RELOC_SIZE; |
dc810e39 | 1865 | if ((char *) rptr >= (char *) relocs + reloc_size) |
e135f41b NC |
1866 | goto done; |
1867 | } | |
1868 | ||
1869 | pdp11_aout_swap_reloc_in (abfd, rptr, cache_ptr, | |
dc810e39 AM |
1870 | (bfd_size_type) ((char *) rptr - (char *) relocs), |
1871 | symbols, | |
1872 | (bfd_size_type) bfd_get_symcount (abfd)); | |
e135f41b NC |
1873 | } |
1874 | done: | |
1875 | /* Just in case, if rptr >= relocs + reloc_size should happen | |
116c20d2 | 1876 | too early. */ |
e135f41b NC |
1877 | BFD_ASSERT (counter == count); |
1878 | ||
1879 | free (relocs); | |
1880 | ||
1881 | asect->relocation = reloc_cache; | |
1882 | asect->reloc_count = cache_ptr - reloc_cache; | |
1883 | ||
b34976b6 | 1884 | return TRUE; |
e135f41b NC |
1885 | } |
1886 | ||
1887 | /* Write out a relocation section into an object file. */ | |
1888 | ||
b34976b6 | 1889 | bfd_boolean |
116c20d2 | 1890 | NAME (aout, squirt_out_relocs) (bfd *abfd, asection *section) |
e135f41b NC |
1891 | { |
1892 | arelent **generic; | |
1893 | unsigned char *native; | |
1894 | unsigned int count = section->reloc_count; | |
dc810e39 | 1895 | bfd_size_type natsize; |
e135f41b | 1896 | |
eea6121a | 1897 | natsize = section->size; |
116c20d2 | 1898 | native = bfd_zalloc (abfd, natsize); |
e135f41b | 1899 | if (!native) |
b34976b6 | 1900 | return FALSE; |
e135f41b | 1901 | |
e135f41b NC |
1902 | generic = section->orelocation; |
1903 | if (generic != NULL) | |
1904 | { | |
1905 | while (count > 0) | |
1906 | { | |
9dadfa79 | 1907 | bfd_byte *r; |
e135f41b | 1908 | |
9dadfa79 | 1909 | r = native + (*generic)->address; |
e135f41b NC |
1910 | pdp11_aout_swap_reloc_out (abfd, *generic, r); |
1911 | count--; | |
1912 | generic++; | |
1913 | } | |
1914 | } | |
1915 | ||
116c20d2 | 1916 | if (bfd_bwrite ((void *) native, natsize, abfd) != natsize) |
e135f41b | 1917 | { |
dc810e39 | 1918 | bfd_release (abfd, native); |
b34976b6 | 1919 | return FALSE; |
e135f41b NC |
1920 | } |
1921 | ||
1922 | bfd_release (abfd, native); | |
b34976b6 | 1923 | return TRUE; |
e135f41b NC |
1924 | } |
1925 | ||
116c20d2 NC |
1926 | /* This is stupid. This function should be a boolean predicate. */ |
1927 | ||
e135f41b | 1928 | long |
116c20d2 NC |
1929 | NAME (aout, canonicalize_reloc) (bfd *abfd, |
1930 | sec_ptr section, | |
1931 | arelent **relptr, | |
1932 | asymbol **symbols) | |
e135f41b NC |
1933 | { |
1934 | arelent *tblptr = section->relocation; | |
1935 | unsigned int count; | |
1936 | ||
1937 | if (section == obj_bsssec (abfd)) | |
1938 | { | |
1939 | *relptr = NULL; | |
1940 | return 0; | |
1941 | } | |
1942 | ||
116c20d2 | 1943 | if (!(tblptr || NAME (aout, slurp_reloc_table)(abfd, section, symbols))) |
e135f41b NC |
1944 | return -1; |
1945 | ||
1946 | if (section->flags & SEC_CONSTRUCTOR) | |
1947 | { | |
1948 | arelent_chain *chain = section->constructor_chain; | |
1949 | ||
1950 | for (count = 0; count < section->reloc_count; count ++) | |
1951 | { | |
1952 | *relptr ++ = &chain->relent; | |
1953 | chain = chain->next; | |
1954 | } | |
1955 | } | |
1956 | else | |
1957 | { | |
1958 | tblptr = section->relocation; | |
1959 | ||
1960 | for (count = 0; count++ < section->reloc_count;) | |
1961 | *relptr++ = tblptr++; | |
1962 | } | |
1963 | ||
1964 | *relptr = 0; | |
1965 | ||
1966 | return section->reloc_count; | |
1967 | } | |
1968 | ||
1969 | long | |
116c20d2 | 1970 | NAME (aout, get_reloc_upper_bound) (bfd *abfd, sec_ptr asect) |
e135f41b | 1971 | { |
7a6e0d89 AM |
1972 | bfd_size_type count; |
1973 | ||
e135f41b NC |
1974 | if (bfd_get_format (abfd) != bfd_object) |
1975 | { | |
1976 | bfd_set_error (bfd_error_invalid_operation); | |
1977 | return -1; | |
1978 | } | |
1979 | ||
dc810e39 | 1980 | if (asect->flags & SEC_CONSTRUCTOR) |
7a6e0d89 AM |
1981 | count = asect->reloc_count; |
1982 | else if (asect == obj_datasec (abfd)) | |
1983 | count = exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd); | |
1984 | else if (asect == obj_textsec (abfd)) | |
1985 | count = exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd); | |
1986 | else if (asect == obj_bsssec (abfd)) | |
1987 | count = 0; | |
1988 | else | |
1989 | { | |
1990 | bfd_set_error (bfd_error_invalid_operation); | |
1991 | return -1; | |
1992 | } | |
e135f41b | 1993 | |
7a6e0d89 AM |
1994 | if (count >= LONG_MAX / sizeof (arelent *)) |
1995 | { | |
1996 | bfd_set_error (bfd_error_file_too_big); | |
1997 | return -1; | |
1998 | } | |
1999 | return (count + 1) * sizeof (arelent *); | |
e135f41b NC |
2000 | } |
2001 | ||
2002 | \f | |
2003 | long | |
116c20d2 | 2004 | NAME (aout, get_symtab_upper_bound) (bfd *abfd) |
e135f41b | 2005 | { |
116c20d2 | 2006 | if (!NAME (aout, slurp_symbol_table) (abfd)) |
e135f41b NC |
2007 | return -1; |
2008 | ||
2009 | return (bfd_get_symcount (abfd) + 1) * (sizeof (aout_symbol_type *)); | |
2010 | } | |
2011 | ||
2012 | alent * | |
116c20d2 NC |
2013 | NAME (aout, get_lineno) (bfd * abfd ATTRIBUTE_UNUSED, |
2014 | asymbol * symbol ATTRIBUTE_UNUSED) | |
e135f41b | 2015 | { |
116c20d2 | 2016 | return NULL; |
e135f41b NC |
2017 | } |
2018 | ||
2019 | void | |
116c20d2 NC |
2020 | NAME (aout, get_symbol_info) (bfd * abfd ATTRIBUTE_UNUSED, |
2021 | asymbol *symbol, | |
2022 | symbol_info *ret) | |
e135f41b NC |
2023 | { |
2024 | bfd_symbol_info (symbol, ret); | |
2025 | ||
2026 | if (ret->type == '?') | |
2027 | { | |
2028 | int type_code = aout_symbol(symbol)->type & 0xff; | |
2029 | const char *stab_name = bfd_get_stab_name (type_code); | |
2030 | static char buf[10]; | |
2031 | ||
2032 | if (stab_name == NULL) | |
2033 | { | |
2034 | sprintf(buf, "(%d)", type_code); | |
2035 | stab_name = buf; | |
2036 | } | |
2037 | ret->type = '-'; | |
116c20d2 NC |
2038 | ret->stab_type = type_code; |
2039 | ret->stab_other = (unsigned) (aout_symbol(symbol)->other & 0xff); | |
2040 | ret->stab_desc = (unsigned) (aout_symbol(symbol)->desc & 0xffff); | |
2041 | ret->stab_name = stab_name; | |
e135f41b NC |
2042 | } |
2043 | } | |
2044 | ||
e135f41b | 2045 | void |
116c20d2 NC |
2046 | NAME (aout, print_symbol) (bfd * abfd, |
2047 | void * afile, | |
2048 | asymbol *symbol, | |
2049 | bfd_print_symbol_type how) | |
e135f41b | 2050 | { |
116c20d2 | 2051 | FILE *file = (FILE *) afile; |
e135f41b NC |
2052 | |
2053 | switch (how) | |
2054 | { | |
2055 | case bfd_print_symbol_name: | |
2056 | if (symbol->name) | |
2057 | fprintf(file,"%s", symbol->name); | |
2058 | break; | |
2059 | case bfd_print_symbol_more: | |
116c20d2 NC |
2060 | fprintf(file,"%4x %2x %2x", |
2061 | (unsigned) (aout_symbol (symbol)->desc & 0xffff), | |
2062 | (unsigned) (aout_symbol (symbol)->other & 0xff), | |
2063 | (unsigned) (aout_symbol (symbol)->type)); | |
e135f41b NC |
2064 | break; |
2065 | case bfd_print_symbol_all: | |
2066 | { | |
dc810e39 | 2067 | const char *section_name = symbol->section->name; |
e135f41b | 2068 | |
116c20d2 | 2069 | bfd_print_symbol_vandf (abfd, (void *) file, symbol); |
e135f41b NC |
2070 | |
2071 | fprintf (file," %-5s %04x %02x %02x", | |
2072 | section_name, | |
116c20d2 NC |
2073 | (unsigned) (aout_symbol (symbol)->desc & 0xffff), |
2074 | (unsigned) (aout_symbol (symbol)->other & 0xff), | |
2075 | (unsigned) (aout_symbol (symbol)->type & 0xff)); | |
e135f41b NC |
2076 | if (symbol->name) |
2077 | fprintf(file," %s", symbol->name); | |
2078 | } | |
2079 | break; | |
2080 | } | |
2081 | } | |
2082 | ||
2083 | /* If we don't have to allocate more than 1MB to hold the generic | |
2084 | symbols, we use the generic minisymbol method: it's faster, since | |
2085 | it only translates the symbols once, not multiple times. */ | |
2086 | #define MINISYM_THRESHOLD (1000000 / sizeof (asymbol)) | |
2087 | ||
2088 | /* Read minisymbols. For minisymbols, we use the unmodified a.out | |
2089 | symbols. The minisymbol_to_symbol function translates these into | |
2090 | BFD asymbol structures. */ | |
2091 | ||
2092 | long | |
116c20d2 NC |
2093 | NAME (aout, read_minisymbols) (bfd *abfd, |
2094 | bfd_boolean dynamic, | |
2095 | void * *minisymsp, | |
2096 | unsigned int *sizep) | |
e135f41b NC |
2097 | { |
2098 | if (dynamic) | |
116c20d2 NC |
2099 | /* We could handle the dynamic symbols here as well, but it's |
2100 | easier to hand them off. */ | |
2101 | return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep); | |
e135f41b NC |
2102 | |
2103 | if (! aout_get_external_symbols (abfd)) | |
2104 | return -1; | |
2105 | ||
2106 | if (obj_aout_external_sym_count (abfd) < MINISYM_THRESHOLD) | |
2107 | return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep); | |
2108 | ||
116c20d2 | 2109 | *minisymsp = (void *) obj_aout_external_syms (abfd); |
e135f41b NC |
2110 | |
2111 | /* By passing the external symbols back from this routine, we are | |
2112 | giving up control over the memory block. Clear | |
2113 | obj_aout_external_syms, so that we do not try to free it | |
2114 | ourselves. */ | |
2115 | obj_aout_external_syms (abfd) = NULL; | |
2116 | ||
2117 | *sizep = EXTERNAL_NLIST_SIZE; | |
2118 | return obj_aout_external_sym_count (abfd); | |
2119 | } | |
2120 | ||
2121 | /* Convert a minisymbol to a BFD asymbol. A minisymbol is just an | |
2122 | unmodified a.out symbol. The SYM argument is a structure returned | |
2123 | by bfd_make_empty_symbol, which we fill in here. */ | |
2124 | ||
2125 | asymbol * | |
116c20d2 NC |
2126 | NAME (aout, minisymbol_to_symbol) (bfd *abfd, |
2127 | bfd_boolean dynamic, | |
2128 | const void * minisym, | |
2129 | asymbol *sym) | |
e135f41b NC |
2130 | { |
2131 | if (dynamic | |
2132 | || obj_aout_external_sym_count (abfd) < MINISYM_THRESHOLD) | |
2133 | return _bfd_generic_minisymbol_to_symbol (abfd, dynamic, minisym, sym); | |
2134 | ||
2135 | memset (sym, 0, sizeof (aout_symbol_type)); | |
2136 | ||
2137 | /* We call translate_symbol_table to translate a single symbol. */ | |
116c20d2 | 2138 | if (! (NAME (aout, translate_symbol_table) |
e135f41b NC |
2139 | (abfd, |
2140 | (aout_symbol_type *) sym, | |
2141 | (struct external_nlist *) minisym, | |
2142 | (bfd_size_type) 1, | |
2143 | obj_aout_external_strings (abfd), | |
2144 | obj_aout_external_string_size (abfd), | |
b34976b6 | 2145 | FALSE))) |
e135f41b NC |
2146 | return NULL; |
2147 | ||
2148 | return sym; | |
2149 | } | |
2150 | ||
116c20d2 NC |
2151 | /* Provided a BFD, a section and an offset into the section, calculate |
2152 | and return the name of the source file and the line nearest to the | |
2153 | wanted location. */ | |
e135f41b | 2154 | |
b34976b6 | 2155 | bfd_boolean |
116c20d2 | 2156 | NAME (aout, find_nearest_line) (bfd *abfd, |
116c20d2 | 2157 | asymbol **symbols, |
fb167eb2 | 2158 | asection *section, |
116c20d2 NC |
2159 | bfd_vma offset, |
2160 | const char **filename_ptr, | |
2161 | const char **functionname_ptr, | |
fb167eb2 AM |
2162 | unsigned int *line_ptr, |
2163 | unsigned int *discriminator_ptr) | |
e135f41b | 2164 | { |
116c20d2 | 2165 | /* Run down the file looking for the filename, function and linenumber. */ |
e135f41b | 2166 | asymbol **p; |
dc810e39 AM |
2167 | const char *directory_name = NULL; |
2168 | const char *main_file_name = NULL; | |
2169 | const char *current_file_name = NULL; | |
116c20d2 | 2170 | const char *line_file_name = NULL; /* Value of current_file_name at line number. */ |
e135f41b NC |
2171 | bfd_vma low_line_vma = 0; |
2172 | bfd_vma low_func_vma = 0; | |
2173 | asymbol *func = 0; | |
2174 | size_t filelen, funclen; | |
2175 | char *buf; | |
2176 | ||
2177 | *filename_ptr = abfd->filename; | |
2178 | *functionname_ptr = 0; | |
2179 | *line_ptr = 0; | |
fb167eb2 AM |
2180 | if (discriminator_ptr) |
2181 | *discriminator_ptr = 0; | |
e135f41b | 2182 | |
116c20d2 | 2183 | if (symbols != NULL) |
e135f41b NC |
2184 | { |
2185 | for (p = symbols; *p; p++) | |
2186 | { | |
2187 | aout_symbol_type *q = (aout_symbol_type *)(*p); | |
2188 | next: | |
2189 | switch (q->type) | |
2190 | { | |
2191 | case N_TEXT: | |
2192 | /* If this looks like a file name symbol, and it comes after | |
2193 | the line number we have found so far, but before the | |
2194 | offset, then we have probably not found the right line | |
2195 | number. */ | |
2196 | if (q->symbol.value <= offset | |
2197 | && ((q->symbol.value > low_line_vma | |
2198 | && (line_file_name != NULL | |
2199 | || *line_ptr != 0)) | |
2200 | || (q->symbol.value > low_func_vma | |
2201 | && func != NULL))) | |
2202 | { | |
2203 | const char * symname; | |
2204 | ||
2205 | symname = q->symbol.name; | |
2206 | if (strcmp (symname + strlen (symname) - 2, ".o") == 0) | |
2207 | { | |
2208 | if (q->symbol.value > low_line_vma) | |
2209 | { | |
2210 | *line_ptr = 0; | |
2211 | line_file_name = NULL; | |
2212 | } | |
2213 | if (q->symbol.value > low_func_vma) | |
2214 | func = NULL; | |
2215 | } | |
2216 | } | |
2217 | break; | |
2218 | ||
2219 | case N_SO: | |
2220 | /* If this symbol is less than the offset, but greater than | |
2221 | the line number we have found so far, then we have not | |
2222 | found the right line number. */ | |
2223 | if (q->symbol.value <= offset) | |
2224 | { | |
2225 | if (q->symbol.value > low_line_vma) | |
2226 | { | |
2227 | *line_ptr = 0; | |
2228 | line_file_name = NULL; | |
2229 | } | |
2230 | if (q->symbol.value > low_func_vma) | |
2231 | func = NULL; | |
2232 | } | |
2233 | ||
2234 | main_file_name = current_file_name = q->symbol.name; | |
116c20d2 | 2235 | /* Look ahead to next symbol to check if that too is an N_SO. */ |
e135f41b NC |
2236 | p++; |
2237 | if (*p == NULL) | |
2238 | break; | |
2239 | q = (aout_symbol_type *)(*p); | |
116c20d2 | 2240 | if (q->type != (int) N_SO) |
e135f41b NC |
2241 | goto next; |
2242 | ||
116c20d2 | 2243 | /* Found a second N_SO First is directory; second is filename. */ |
e135f41b NC |
2244 | directory_name = current_file_name; |
2245 | main_file_name = current_file_name = q->symbol.name; | |
2246 | if (obj_textsec(abfd) != section) | |
2247 | goto done; | |
2248 | break; | |
2249 | case N_SOL: | |
2250 | current_file_name = q->symbol.name; | |
2251 | break; | |
2252 | ||
2253 | case N_SLINE: | |
2254 | case N_DSLINE: | |
2255 | case N_BSLINE: | |
2256 | /* We'll keep this if it resolves nearer than the one we have | |
2257 | already. */ | |
2258 | if (q->symbol.value >= low_line_vma | |
2259 | && q->symbol.value <= offset) | |
2260 | { | |
2261 | *line_ptr = q->desc; | |
2262 | low_line_vma = q->symbol.value; | |
2263 | line_file_name = current_file_name; | |
2264 | } | |
2265 | break; | |
2266 | ||
2267 | case N_FUN: | |
2268 | { | |
116c20d2 | 2269 | /* We'll keep this if it is nearer than the one we have already. */ |
e135f41b NC |
2270 | if (q->symbol.value >= low_func_vma && |
2271 | q->symbol.value <= offset) | |
2272 | { | |
2273 | low_func_vma = q->symbol.value; | |
116c20d2 | 2274 | func = (asymbol *) q; |
e135f41b NC |
2275 | } |
2276 | else if (q->symbol.value > offset) | |
2277 | goto done; | |
2278 | } | |
2279 | break; | |
2280 | } | |
2281 | } | |
2282 | } | |
2283 | ||
2284 | done: | |
2285 | if (*line_ptr != 0) | |
2286 | main_file_name = line_file_name; | |
2287 | ||
2288 | if (main_file_name == NULL | |
2289 | || main_file_name[0] == '/' | |
2290 | || directory_name == NULL) | |
2291 | filelen = 0; | |
2292 | else | |
2293 | filelen = strlen (directory_name) + strlen (main_file_name); | |
2294 | if (func == NULL) | |
2295 | funclen = 0; | |
2296 | else | |
2297 | funclen = strlen (bfd_asymbol_name (func)); | |
2298 | ||
2299 | if (adata (abfd).line_buf != NULL) | |
2300 | free (adata (abfd).line_buf); | |
2301 | if (filelen + funclen == 0) | |
2302 | adata (abfd).line_buf = buf = NULL; | |
2303 | else | |
2304 | { | |
116c20d2 | 2305 | buf = bfd_malloc ((bfd_size_type) filelen + funclen + 3); |
e135f41b NC |
2306 | adata (abfd).line_buf = buf; |
2307 | if (buf == NULL) | |
b34976b6 | 2308 | return FALSE; |
e135f41b NC |
2309 | } |
2310 | ||
2311 | if (main_file_name != NULL) | |
2312 | { | |
2313 | if (main_file_name[0] == '/' || directory_name == NULL) | |
2314 | *filename_ptr = main_file_name; | |
2315 | else | |
2316 | { | |
2317 | sprintf (buf, "%s%s", directory_name, main_file_name); | |
2318 | *filename_ptr = buf; | |
2319 | buf += filelen + 1; | |
2320 | } | |
2321 | } | |
2322 | ||
2323 | if (func) | |
2324 | { | |
2325 | const char *function = func->name; | |
dc810e39 | 2326 | char *colon; |
e135f41b NC |
2327 | |
2328 | /* The caller expects a symbol name. We actually have a | |
2329 | function name, without the leading underscore. Put the | |
2330 | underscore back in, so that the caller gets a symbol name. */ | |
2331 | if (bfd_get_symbol_leading_char (abfd) == '\0') | |
2332 | strcpy (buf, function); | |
2333 | else | |
2334 | { | |
2335 | buf[0] = bfd_get_symbol_leading_char (abfd); | |
2336 | strcpy (buf + 1, function); | |
2337 | } | |
2338 | ||
2339 | /* Have to remove : stuff. */ | |
dc810e39 AM |
2340 | colon = strchr (buf, ':'); |
2341 | if (colon != NULL) | |
2342 | *colon = '\0'; | |
e135f41b NC |
2343 | *functionname_ptr = buf; |
2344 | } | |
2345 | ||
b34976b6 | 2346 | return TRUE; |
e135f41b NC |
2347 | } |
2348 | ||
2349 | int | |
a6b96beb AM |
2350 | NAME (aout, sizeof_headers) (bfd *abfd, |
2351 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
e135f41b | 2352 | { |
116c20d2 | 2353 | return adata (abfd).exec_bytes_size; |
e135f41b NC |
2354 | } |
2355 | ||
2356 | /* Free all information we have cached for this BFD. We can always | |
2357 | read it again later if we need it. */ | |
2358 | ||
b34976b6 | 2359 | bfd_boolean |
116c20d2 | 2360 | NAME (aout, bfd_free_cached_info) (bfd *abfd) |
e135f41b NC |
2361 | { |
2362 | asection *o; | |
2363 | ||
2364 | if (bfd_get_format (abfd) != bfd_object) | |
b34976b6 | 2365 | return TRUE; |
e135f41b NC |
2366 | |
2367 | #define BFCI_FREE(x) if (x != NULL) { free (x); x = NULL; } | |
2368 | BFCI_FREE (obj_aout_symbols (abfd)); | |
116c20d2 | 2369 | |
e135f41b NC |
2370 | #ifdef USE_MMAP |
2371 | obj_aout_external_syms (abfd) = 0; | |
2372 | bfd_free_window (&obj_aout_sym_window (abfd)); | |
2373 | bfd_free_window (&obj_aout_string_window (abfd)); | |
2374 | obj_aout_external_strings (abfd) = 0; | |
2375 | #else | |
2376 | BFCI_FREE (obj_aout_external_syms (abfd)); | |
2377 | BFCI_FREE (obj_aout_external_strings (abfd)); | |
2378 | #endif | |
116c20d2 | 2379 | for (o = abfd->sections; o != NULL; o = o->next) |
e135f41b NC |
2380 | BFCI_FREE (o->relocation); |
2381 | #undef BFCI_FREE | |
2382 | ||
b34976b6 | 2383 | return TRUE; |
e135f41b NC |
2384 | } |
2385 | \f | |
e135f41b NC |
2386 | /* Routine to create an entry in an a.out link hash table. */ |
2387 | ||
2388 | struct bfd_hash_entry * | |
116c20d2 NC |
2389 | NAME (aout, link_hash_newfunc) (struct bfd_hash_entry *entry, |
2390 | struct bfd_hash_table *table, | |
2391 | const char *string) | |
e135f41b NC |
2392 | { |
2393 | struct aout_link_hash_entry *ret = (struct aout_link_hash_entry *) entry; | |
2394 | ||
2395 | /* Allocate the structure if it has not already been allocated by a | |
2396 | subclass. */ | |
116c20d2 NC |
2397 | if (ret == NULL) |
2398 | ret = bfd_hash_allocate (table, sizeof (* ret)); | |
2399 | if (ret == NULL) | |
2400 | return NULL; | |
e135f41b NC |
2401 | |
2402 | /* Call the allocation method of the superclass. */ | |
116c20d2 NC |
2403 | ret = (struct aout_link_hash_entry *) |
2404 | _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret, table, string); | |
e135f41b NC |
2405 | if (ret) |
2406 | { | |
2407 | /* Set local fields. */ | |
b34976b6 | 2408 | ret->written = FALSE; |
e135f41b NC |
2409 | ret->indx = -1; |
2410 | } | |
2411 | ||
2412 | return (struct bfd_hash_entry *) ret; | |
2413 | } | |
2414 | ||
2415 | /* Initialize an a.out link hash table. */ | |
2416 | ||
b34976b6 | 2417 | bfd_boolean |
116c20d2 NC |
2418 | NAME (aout, link_hash_table_init) (struct aout_link_hash_table *table, |
2419 | bfd *abfd, | |
2420 | struct bfd_hash_entry *(*newfunc) (struct bfd_hash_entry *, | |
2421 | struct bfd_hash_table *, | |
66eb6687 AM |
2422 | const char *), |
2423 | unsigned int entsize) | |
e135f41b | 2424 | { |
66eb6687 | 2425 | return _bfd_link_hash_table_init (&table->root, abfd, newfunc, entsize); |
e135f41b NC |
2426 | } |
2427 | ||
2428 | /* Create an a.out link hash table. */ | |
2429 | ||
2430 | struct bfd_link_hash_table * | |
116c20d2 | 2431 | NAME (aout, link_hash_table_create) (bfd *abfd) |
e135f41b NC |
2432 | { |
2433 | struct aout_link_hash_table *ret; | |
986f0783 | 2434 | size_t amt = sizeof (struct aout_link_hash_table); |
e135f41b | 2435 | |
22cdc249 | 2436 | ret = bfd_malloc (amt); |
e135f41b | 2437 | if (ret == NULL) |
116c20d2 NC |
2438 | return NULL; |
2439 | if (! NAME (aout, link_hash_table_init) (ret, abfd, | |
66eb6687 AM |
2440 | NAME (aout, link_hash_newfunc), |
2441 | sizeof (struct aout_link_hash_entry))) | |
e135f41b NC |
2442 | { |
2443 | free (ret); | |
116c20d2 | 2444 | return NULL; |
e135f41b NC |
2445 | } |
2446 | return &ret->root; | |
2447 | } | |
2448 | ||
116c20d2 NC |
2449 | /* Free up the internal symbols read from an a.out file. */ |
2450 | ||
2451 | static bfd_boolean | |
2452 | aout_link_free_symbols (bfd *abfd) | |
2453 | { | |
2454 | if (obj_aout_external_syms (abfd) != NULL) | |
2455 | { | |
2456 | #ifdef USE_MMAP | |
2457 | bfd_free_window (&obj_aout_sym_window (abfd)); | |
2458 | #else | |
2459 | free ((void *) obj_aout_external_syms (abfd)); | |
2460 | #endif | |
2461 | obj_aout_external_syms (abfd) = NULL; | |
2462 | } | |
2463 | ||
2464 | if (obj_aout_external_strings (abfd) != NULL) | |
2465 | { | |
2466 | #ifdef USE_MMAP | |
2467 | bfd_free_window (&obj_aout_string_window (abfd)); | |
2468 | #else | |
2469 | free ((void *) obj_aout_external_strings (abfd)); | |
2470 | #endif | |
2471 | obj_aout_external_strings (abfd) = NULL; | |
2472 | } | |
2473 | return TRUE; | |
2474 | } | |
2475 | ||
e135f41b NC |
2476 | /* Given an a.out BFD, add symbols to the global hash table as |
2477 | appropriate. */ | |
2478 | ||
b34976b6 | 2479 | bfd_boolean |
116c20d2 | 2480 | NAME (aout, link_add_symbols) (bfd *abfd, struct bfd_link_info *info) |
e135f41b NC |
2481 | { |
2482 | switch (bfd_get_format (abfd)) | |
2483 | { | |
2484 | case bfd_object: | |
2485 | return aout_link_add_object_symbols (abfd, info); | |
2486 | case bfd_archive: | |
2487 | return _bfd_generic_link_add_archive_symbols | |
2488 | (abfd, info, aout_link_check_archive_element); | |
2489 | default: | |
2490 | bfd_set_error (bfd_error_wrong_format); | |
b34976b6 | 2491 | return FALSE; |
e135f41b NC |
2492 | } |
2493 | } | |
2494 | ||
2495 | /* Add symbols from an a.out object file. */ | |
2496 | ||
b34976b6 | 2497 | static bfd_boolean |
116c20d2 | 2498 | aout_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info) |
e135f41b NC |
2499 | { |
2500 | if (! aout_get_external_symbols (abfd)) | |
b34976b6 | 2501 | return FALSE; |
e135f41b | 2502 | if (! aout_link_add_symbols (abfd, info)) |
b34976b6 | 2503 | return FALSE; |
e135f41b NC |
2504 | if (! info->keep_memory) |
2505 | { | |
2506 | if (! aout_link_free_symbols (abfd)) | |
b34976b6 | 2507 | return FALSE; |
e135f41b | 2508 | } |
b34976b6 | 2509 | return TRUE; |
e135f41b NC |
2510 | } |
2511 | ||
e135f41b NC |
2512 | /* Look through the internal symbols to see if this object file should |
2513 | be included in the link. We should include this object file if it | |
2514 | defines any symbols which are currently undefined. If this object | |
2515 | file defines a common symbol, then we may adjust the size of the | |
2516 | known symbol but we do not include the object file in the link | |
2517 | (unless there is some other reason to include it). */ | |
2518 | ||
b34976b6 | 2519 | static bfd_boolean |
116c20d2 NC |
2520 | aout_link_check_ar_symbols (bfd *abfd, |
2521 | struct bfd_link_info *info, | |
5d3236ee DK |
2522 | bfd_boolean *pneeded, |
2523 | bfd **subsbfd) | |
e135f41b | 2524 | { |
116c20d2 | 2525 | struct external_nlist *p; |
e135f41b NC |
2526 | struct external_nlist *pend; |
2527 | char *strings; | |
2528 | ||
b34976b6 | 2529 | *pneeded = FALSE; |
e135f41b NC |
2530 | |
2531 | /* Look through all the symbols. */ | |
2532 | p = obj_aout_external_syms (abfd); | |
2533 | pend = p + obj_aout_external_sym_count (abfd); | |
2534 | strings = obj_aout_external_strings (abfd); | |
2535 | for (; p < pend; p++) | |
2536 | { | |
dc810e39 | 2537 | int type = H_GET_8 (abfd, p->e_type); |
e135f41b NC |
2538 | const char *name; |
2539 | struct bfd_link_hash_entry *h; | |
2540 | ||
2541 | /* Ignore symbols that are not externally visible. This is an | |
2542 | optimization only, as we check the type more thoroughly | |
2543 | below. */ | |
2544 | if ((type & N_EXT) == 0 | |
2545 | || type == N_FN) | |
2546 | continue; | |
2547 | ||
2548 | name = strings + GET_WORD (abfd, p->e_strx); | |
b34976b6 | 2549 | h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE); |
e135f41b NC |
2550 | |
2551 | /* We are only interested in symbols that are currently | |
2552 | undefined or common. */ | |
116c20d2 | 2553 | if (h == NULL |
e135f41b NC |
2554 | || (h->type != bfd_link_hash_undefined |
2555 | && h->type != bfd_link_hash_common)) | |
2556 | continue; | |
2557 | ||
2558 | if (type == (N_TEXT | N_EXT) | |
2559 | || type == (N_DATA | N_EXT) | |
2560 | || type == (N_BSS | N_EXT) | |
2561 | || type == (N_ABS | N_EXT)) | |
2562 | { | |
2563 | /* This object file defines this symbol. We must link it | |
2564 | in. This is true regardless of whether the current | |
2565 | definition of the symbol is undefined or common. If the | |
2566 | current definition is common, we have a case in which we | |
2567 | have already seen an object file including | |
07d6d2b8 | 2568 | int a; |
e135f41b | 2569 | and this object file from the archive includes |
07d6d2b8 | 2570 | int a = 5; |
e135f41b NC |
2571 | In such a case we must include this object file. |
2572 | ||
2573 | FIXME: The SunOS 4.1.3 linker will pull in the archive | |
2574 | element if the symbol is defined in the .data section, | |
2575 | but not if it is defined in the .text section. That | |
2576 | seems a bit crazy to me, and I haven't implemented it. | |
2577 | However, it might be correct. */ | |
0e144ba7 AM |
2578 | if (!(*info->callbacks |
2579 | ->add_archive_element) (info, abfd, name, subsbfd)) | |
b95a0a31 | 2580 | continue; |
b34976b6 AM |
2581 | *pneeded = TRUE; |
2582 | return TRUE; | |
e135f41b NC |
2583 | } |
2584 | ||
2585 | if (type == (N_UNDF | N_EXT)) | |
2586 | { | |
2587 | bfd_vma value; | |
2588 | ||
2589 | value = GET_WORD (abfd, p->e_value); | |
2590 | if (value != 0) | |
2591 | { | |
2592 | /* This symbol is common in the object from the archive | |
2593 | file. */ | |
2594 | if (h->type == bfd_link_hash_undefined) | |
2595 | { | |
2596 | bfd *symbfd; | |
2597 | unsigned int power; | |
2598 | ||
2599 | symbfd = h->u.undef.abfd; | |
116c20d2 | 2600 | if (symbfd == NULL) |
e135f41b NC |
2601 | { |
2602 | /* This symbol was created as undefined from | |
2603 | outside BFD. We assume that we should link | |
2604 | in the object file. This is done for the -u | |
2605 | option in the linker. */ | |
0e144ba7 AM |
2606 | if (!(*info->callbacks |
2607 | ->add_archive_element) (info, abfd, name, subsbfd)) | |
b34976b6 AM |
2608 | return FALSE; |
2609 | *pneeded = TRUE; | |
2610 | return TRUE; | |
e135f41b NC |
2611 | } |
2612 | /* Turn the current link symbol into a common | |
2613 | symbol. It is already on the undefs list. */ | |
2614 | h->type = bfd_link_hash_common; | |
116c20d2 NC |
2615 | h->u.c.p = bfd_hash_allocate (&info->hash->table, |
2616 | sizeof (struct bfd_link_hash_common_entry)); | |
e135f41b | 2617 | if (h->u.c.p == NULL) |
b34976b6 | 2618 | return FALSE; |
e135f41b NC |
2619 | |
2620 | h->u.c.size = value; | |
2621 | ||
2622 | /* FIXME: This isn't quite right. The maximum | |
2623 | alignment of a common symbol should be set by the | |
2624 | architecture of the output file, not of the input | |
2625 | file. */ | |
2626 | power = bfd_log2 (value); | |
2627 | if (power > bfd_get_arch_info (abfd)->section_align_power) | |
2628 | power = bfd_get_arch_info (abfd)->section_align_power; | |
2629 | h->u.c.p->alignment_power = power; | |
2630 | ||
2631 | h->u.c.p->section = bfd_make_section_old_way (symbfd, | |
2632 | "COMMON"); | |
2633 | } | |
2634 | else | |
2635 | { | |
2636 | /* Adjust the size of the common symbol if | |
2637 | necessary. */ | |
2638 | if (value > h->u.c.size) | |
2639 | h->u.c.size = value; | |
2640 | } | |
2641 | } | |
2642 | } | |
2643 | } | |
2644 | ||
2645 | /* We do not need this object file. */ | |
b34976b6 | 2646 | return TRUE; |
e135f41b NC |
2647 | } |
2648 | ||
116c20d2 NC |
2649 | /* Check a single archive element to see if we need to include it in |
2650 | the link. *PNEEDED is set according to whether this element is | |
2651 | needed in the link or not. This is called from | |
2652 | _bfd_generic_link_add_archive_symbols. */ | |
2653 | ||
2654 | static bfd_boolean | |
2655 | aout_link_check_archive_element (bfd *abfd, | |
2656 | struct bfd_link_info *info, | |
13e570f8 AM |
2657 | struct bfd_link_hash_entry *h ATTRIBUTE_UNUSED, |
2658 | const char *name ATTRIBUTE_UNUSED, | |
116c20d2 NC |
2659 | bfd_boolean *pneeded) |
2660 | { | |
0e144ba7 AM |
2661 | bfd *oldbfd; |
2662 | bfd_boolean needed; | |
5d3236ee | 2663 | |
0e144ba7 | 2664 | if (!aout_get_external_symbols (abfd)) |
116c20d2 NC |
2665 | return FALSE; |
2666 | ||
0e144ba7 AM |
2667 | oldbfd = abfd; |
2668 | if (!aout_link_check_ar_symbols (abfd, info, pneeded, &abfd)) | |
116c20d2 NC |
2669 | return FALSE; |
2670 | ||
0e144ba7 AM |
2671 | needed = *pneeded; |
2672 | if (needed) | |
116c20d2 | 2673 | { |
5d3236ee DK |
2674 | /* Potentially, the add_archive_element hook may have set a |
2675 | substitute BFD for us. */ | |
0e144ba7 AM |
2676 | if (abfd != oldbfd) |
2677 | { | |
2678 | if (!info->keep_memory | |
2679 | && !aout_link_free_symbols (oldbfd)) | |
2680 | return FALSE; | |
2681 | if (!aout_get_external_symbols (abfd)) | |
2682 | return FALSE; | |
2683 | } | |
2684 | if (!aout_link_add_symbols (abfd, info)) | |
116c20d2 NC |
2685 | return FALSE; |
2686 | } | |
2687 | ||
0e144ba7 | 2688 | if (!info->keep_memory || !needed) |
116c20d2 | 2689 | { |
0e144ba7 | 2690 | if (!aout_link_free_symbols (abfd)) |
116c20d2 NC |
2691 | return FALSE; |
2692 | } | |
2693 | ||
2694 | return TRUE; | |
2695 | } | |
2696 | ||
e135f41b NC |
2697 | /* Add all symbols from an object file to the hash table. */ |
2698 | ||
b34976b6 | 2699 | static bfd_boolean |
116c20d2 | 2700 | aout_link_add_symbols (bfd *abfd, struct bfd_link_info *info) |
e135f41b | 2701 | { |
b34976b6 | 2702 | bfd_boolean (*add_one_symbol) |
116c20d2 NC |
2703 | (struct bfd_link_info *, bfd *, const char *, flagword, asection *, |
2704 | bfd_vma, const char *, bfd_boolean, bfd_boolean, | |
2705 | struct bfd_link_hash_entry **); | |
e135f41b NC |
2706 | struct external_nlist *syms; |
2707 | bfd_size_type sym_count; | |
2708 | char *strings; | |
b34976b6 | 2709 | bfd_boolean copy; |
e135f41b | 2710 | struct aout_link_hash_entry **sym_hash; |
116c20d2 | 2711 | struct external_nlist *p; |
e135f41b NC |
2712 | struct external_nlist *pend; |
2713 | ||
2714 | syms = obj_aout_external_syms (abfd); | |
2715 | sym_count = obj_aout_external_sym_count (abfd); | |
2716 | strings = obj_aout_external_strings (abfd); | |
2717 | if (info->keep_memory) | |
b34976b6 | 2718 | copy = FALSE; |
e135f41b | 2719 | else |
b34976b6 | 2720 | copy = TRUE; |
e135f41b NC |
2721 | |
2722 | if (aout_backend_info (abfd)->add_dynamic_symbols != NULL) | |
2723 | { | |
2724 | if (! ((*aout_backend_info (abfd)->add_dynamic_symbols) | |
2725 | (abfd, info, &syms, &sym_count, &strings))) | |
b34976b6 | 2726 | return FALSE; |
e135f41b NC |
2727 | } |
2728 | ||
2729 | /* We keep a list of the linker hash table entries that correspond | |
2730 | to particular symbols. We could just look them up in the hash | |
2731 | table, but keeping the list is more efficient. Perhaps this | |
2732 | should be conditional on info->keep_memory. */ | |
116c20d2 NC |
2733 | sym_hash = bfd_alloc (abfd, |
2734 | sym_count * sizeof (struct aout_link_hash_entry *)); | |
e135f41b | 2735 | if (sym_hash == NULL && sym_count != 0) |
b34976b6 | 2736 | return FALSE; |
e135f41b NC |
2737 | obj_aout_sym_hashes (abfd) = sym_hash; |
2738 | ||
2739 | add_one_symbol = aout_backend_info (abfd)->add_one_symbol; | |
2740 | if (add_one_symbol == NULL) | |
2741 | add_one_symbol = _bfd_generic_link_add_one_symbol; | |
2742 | ||
2743 | p = syms; | |
2744 | pend = p + sym_count; | |
2745 | for (; p < pend; p++, sym_hash++) | |
2746 | { | |
2747 | int type; | |
2748 | const char *name; | |
2749 | bfd_vma value; | |
2750 | asection *section; | |
2751 | flagword flags; | |
2752 | const char *string; | |
2753 | ||
2754 | *sym_hash = NULL; | |
2755 | ||
dc810e39 | 2756 | type = H_GET_8 (abfd, p->e_type); |
e135f41b | 2757 | |
e135f41b NC |
2758 | name = strings + GET_WORD (abfd, p->e_strx); |
2759 | value = GET_WORD (abfd, p->e_value); | |
2760 | flags = BSF_GLOBAL; | |
2761 | string = NULL; | |
2762 | switch (type) | |
2763 | { | |
2764 | default: | |
0c98115d PK |
2765 | /* Anything else should be a debugging symbol. */ |
2766 | BFD_ASSERT ((type & N_STAB) != 0); | |
2767 | continue; | |
e135f41b NC |
2768 | |
2769 | case N_UNDF: | |
2770 | case N_ABS: | |
2771 | case N_TEXT: | |
2772 | case N_DATA: | |
2773 | case N_BSS: | |
2774 | case N_REG: | |
2775 | case N_FN: | |
2776 | /* Ignore symbols that are not externally visible. */ | |
2777 | continue; | |
2778 | ||
2779 | case N_UNDF | N_EXT: | |
2780 | if (value == 0) | |
2781 | { | |
2782 | section = bfd_und_section_ptr; | |
2783 | flags = 0; | |
2784 | } | |
2785 | else | |
2786 | section = bfd_com_section_ptr; | |
2787 | break; | |
2788 | case N_ABS | N_EXT: | |
2789 | section = bfd_abs_section_ptr; | |
2790 | break; | |
2791 | case N_TEXT | N_EXT: | |
2792 | section = obj_textsec (abfd); | |
fd361982 | 2793 | value -= bfd_section_vma (section); |
e135f41b NC |
2794 | break; |
2795 | case N_DATA | N_EXT: | |
2796 | /* Treat N_SETV symbols as N_DATA symbol; see comment in | |
2797 | translate_from_native_sym_flags. */ | |
2798 | section = obj_datasec (abfd); | |
fd361982 | 2799 | value -= bfd_section_vma (section); |
e135f41b NC |
2800 | break; |
2801 | case N_BSS | N_EXT: | |
2802 | section = obj_bsssec (abfd); | |
fd361982 | 2803 | value -= bfd_section_vma (section); |
e135f41b NC |
2804 | break; |
2805 | } | |
2806 | ||
2807 | if (! ((*add_one_symbol) | |
b34976b6 | 2808 | (info, abfd, name, flags, section, value, string, copy, FALSE, |
e135f41b | 2809 | (struct bfd_link_hash_entry **) sym_hash))) |
b34976b6 | 2810 | return FALSE; |
e135f41b NC |
2811 | |
2812 | /* Restrict the maximum alignment of a common symbol based on | |
2813 | the architecture, since a.out has no way to represent | |
2814 | alignment requirements of a section in a .o file. FIXME: | |
2815 | This isn't quite right: it should use the architecture of the | |
2816 | output file, not the input files. */ | |
2817 | if ((*sym_hash)->root.type == bfd_link_hash_common | |
2818 | && ((*sym_hash)->root.u.c.p->alignment_power > | |
2819 | bfd_get_arch_info (abfd)->section_align_power)) | |
2820 | (*sym_hash)->root.u.c.p->alignment_power = | |
2821 | bfd_get_arch_info (abfd)->section_align_power; | |
2822 | ||
2823 | /* If this is a set symbol, and we are not building sets, then | |
2824 | it is possible for the hash entry to not have been set. In | |
2825 | such a case, treat the symbol as not globally defined. */ | |
2826 | if ((*sym_hash)->root.type == bfd_link_hash_new) | |
2827 | { | |
2828 | BFD_ASSERT ((flags & BSF_CONSTRUCTOR) != 0); | |
2829 | *sym_hash = NULL; | |
2830 | } | |
2831 | } | |
2832 | ||
b34976b6 | 2833 | return TRUE; |
e135f41b NC |
2834 | } |
2835 | \f | |
116c20d2 | 2836 | /* Look up an entry in an the header file hash table. */ |
e135f41b NC |
2837 | |
2838 | #define aout_link_includes_lookup(table, string, create, copy) \ | |
2839 | ((struct aout_link_includes_entry *) \ | |
2840 | bfd_hash_lookup (&(table)->root, (string), (create), (copy))) | |
2841 | ||
e135f41b NC |
2842 | /* The function to create a new entry in the header file hash table. */ |
2843 | ||
2844 | static struct bfd_hash_entry * | |
116c20d2 NC |
2845 | aout_link_includes_newfunc (struct bfd_hash_entry *entry, |
2846 | struct bfd_hash_table *table, | |
2847 | const char *string) | |
e135f41b | 2848 | { |
116c20d2 | 2849 | struct aout_link_includes_entry * ret = |
e135f41b NC |
2850 | (struct aout_link_includes_entry *) entry; |
2851 | ||
2852 | /* Allocate the structure if it has not already been allocated by a | |
2853 | subclass. */ | |
116c20d2 NC |
2854 | if (ret == NULL) |
2855 | ret = bfd_hash_allocate (table, | |
2856 | sizeof (struct aout_link_includes_entry)); | |
2857 | if (ret == NULL) | |
2858 | return NULL; | |
e135f41b NC |
2859 | |
2860 | /* Call the allocation method of the superclass. */ | |
2861 | ret = ((struct aout_link_includes_entry *) | |
2862 | bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string)); | |
2863 | if (ret) | |
116c20d2 NC |
2864 | /* Set local fields. */ |
2865 | ret->totals = NULL; | |
e135f41b NC |
2866 | |
2867 | return (struct bfd_hash_entry *) ret; | |
2868 | } | |
2869 | ||
116c20d2 | 2870 | static bfd_boolean |
7686d77d | 2871 | aout_link_write_other_symbol (struct bfd_hash_entry *bh, void *data) |
e135f41b | 2872 | { |
7686d77d | 2873 | struct aout_link_hash_entry *h = (struct aout_link_hash_entry *) bh; |
57402f1e | 2874 | struct aout_final_link_info *flaginfo = (struct aout_final_link_info *) data; |
116c20d2 NC |
2875 | bfd *output_bfd; |
2876 | int type; | |
2877 | bfd_vma val; | |
2878 | struct external_nlist outsym; | |
2879 | bfd_size_type indx; | |
986f0783 | 2880 | size_t amt; |
e135f41b | 2881 | |
116c20d2 NC |
2882 | if (h->root.type == bfd_link_hash_warning) |
2883 | { | |
2884 | h = (struct aout_link_hash_entry *) h->root.u.i.link; | |
2885 | if (h->root.type == bfd_link_hash_new) | |
2886 | return TRUE; | |
2887 | } | |
e135f41b | 2888 | |
57402f1e | 2889 | output_bfd = flaginfo->output_bfd; |
e135f41b | 2890 | |
116c20d2 | 2891 | if (aout_backend_info (output_bfd)->write_dynamic_symbol != NULL) |
e135f41b | 2892 | { |
116c20d2 | 2893 | if (! ((*aout_backend_info (output_bfd)->write_dynamic_symbol) |
57402f1e | 2894 | (output_bfd, flaginfo->info, h))) |
e135f41b | 2895 | { |
116c20d2 NC |
2896 | /* FIXME: No way to handle errors. */ |
2897 | abort (); | |
e135f41b | 2898 | } |
116c20d2 | 2899 | } |
e135f41b | 2900 | |
116c20d2 NC |
2901 | if (h->written) |
2902 | return TRUE; | |
e135f41b | 2903 | |
116c20d2 | 2904 | h->written = TRUE; |
e135f41b | 2905 | |
116c20d2 NC |
2906 | /* An indx of -2 means the symbol must be written. */ |
2907 | if (h->indx != -2 | |
57402f1e NC |
2908 | && (flaginfo->info->strip == strip_all |
2909 | || (flaginfo->info->strip == strip_some | |
2910 | && bfd_hash_lookup (flaginfo->info->keep_hash, h->root.root.string, | |
116c20d2 NC |
2911 | FALSE, FALSE) == NULL))) |
2912 | return TRUE; | |
e135f41b | 2913 | |
116c20d2 | 2914 | switch (h->root.type) |
e135f41b | 2915 | { |
116c20d2 NC |
2916 | default: |
2917 | abort (); | |
2918 | /* Avoid variable not initialized warnings. */ | |
2919 | return TRUE; | |
2920 | case bfd_link_hash_new: | |
2921 | /* This can happen for set symbols when sets are not being | |
07d6d2b8 | 2922 | built. */ |
116c20d2 NC |
2923 | return TRUE; |
2924 | case bfd_link_hash_undefined: | |
2925 | type = N_UNDF | N_EXT; | |
2926 | val = 0; | |
2927 | break; | |
2928 | case bfd_link_hash_defined: | |
2929 | case bfd_link_hash_defweak: | |
2930 | { | |
2931 | asection *sec; | |
2932 | ||
2933 | sec = h->root.u.def.section->output_section; | |
2934 | BFD_ASSERT (bfd_is_abs_section (sec) | |
2935 | || sec->owner == output_bfd); | |
2936 | if (sec == obj_textsec (output_bfd)) | |
2937 | type = h->root.type == bfd_link_hash_defined ? N_TEXT : N_WEAKT; | |
2938 | else if (sec == obj_datasec (output_bfd)) | |
2939 | type = h->root.type == bfd_link_hash_defined ? N_DATA : N_WEAKD; | |
2940 | else if (sec == obj_bsssec (output_bfd)) | |
2941 | type = h->root.type == bfd_link_hash_defined ? N_BSS : N_WEAKB; | |
2942 | else | |
2943 | type = h->root.type == bfd_link_hash_defined ? N_ABS : N_WEAKA; | |
2944 | type |= N_EXT; | |
2945 | val = (h->root.u.def.value | |
2946 | + sec->vma | |
2947 | + h->root.u.def.section->output_offset); | |
2948 | } | |
2949 | break; | |
2950 | case bfd_link_hash_common: | |
2951 | type = N_UNDF | N_EXT; | |
2952 | val = h->root.u.c.size; | |
2953 | break; | |
2954 | case bfd_link_hash_undefweak: | |
2955 | type = N_WEAKU; | |
2956 | val = 0; | |
1a0670f3 | 2957 | /* Fall through. */ |
116c20d2 NC |
2958 | case bfd_link_hash_indirect: |
2959 | case bfd_link_hash_warning: | |
2960 | /* FIXME: Ignore these for now. The circumstances under which | |
2961 | they should be written out are not clear to me. */ | |
2962 | return TRUE; | |
e135f41b NC |
2963 | } |
2964 | ||
116c20d2 | 2965 | H_PUT_8 (output_bfd, type, outsym.e_type); |
57402f1e | 2966 | indx = add_to_stringtab (output_bfd, flaginfo->strtab, h->root.root.string, |
116c20d2 NC |
2967 | FALSE); |
2968 | if (indx == (bfd_size_type) -1) | |
2969 | /* FIXME: No way to handle errors. */ | |
2970 | abort (); | |
e135f41b | 2971 | |
116c20d2 NC |
2972 | PUT_WORD (output_bfd, indx, outsym.e_strx); |
2973 | PUT_WORD (output_bfd, val, outsym.e_value); | |
e135f41b | 2974 | |
116c20d2 | 2975 | amt = EXTERNAL_NLIST_SIZE; |
57402f1e | 2976 | if (bfd_seek (output_bfd, flaginfo->symoff, SEEK_SET) != 0 |
116c20d2 NC |
2977 | || bfd_bwrite ((void *) &outsym, amt, output_bfd) != amt) |
2978 | /* FIXME: No way to handle errors. */ | |
2979 | abort (); | |
e135f41b | 2980 | |
57402f1e | 2981 | flaginfo->symoff += amt; |
116c20d2 NC |
2982 | h->indx = obj_aout_external_sym_count (output_bfd); |
2983 | ++obj_aout_external_sym_count (output_bfd); | |
e135f41b | 2984 | |
116c20d2 NC |
2985 | return TRUE; |
2986 | } | |
e135f41b | 2987 | |
116c20d2 | 2988 | /* Handle a link order which is supposed to generate a reloc. */ |
e135f41b | 2989 | |
116c20d2 | 2990 | static bfd_boolean |
57402f1e | 2991 | aout_link_reloc_link_order (struct aout_final_link_info *flaginfo, |
116c20d2 NC |
2992 | asection *o, |
2993 | struct bfd_link_order *p) | |
2994 | { | |
2995 | struct bfd_link_order_reloc *pr; | |
2996 | int r_index; | |
2997 | int r_extern; | |
2998 | reloc_howto_type *howto; | |
2999 | file_ptr *reloff_ptr; | |
3000 | struct reloc_std_external srel; | |
3001 | void * rel_ptr; | |
3002 | bfd_size_type rel_size; | |
e135f41b | 3003 | |
116c20d2 | 3004 | pr = p->u.reloc.p; |
e135f41b | 3005 | |
116c20d2 | 3006 | if (p->type == bfd_section_reloc_link_order) |
e135f41b | 3007 | { |
116c20d2 NC |
3008 | r_extern = 0; |
3009 | if (bfd_is_abs_section (pr->u.section)) | |
3010 | r_index = N_ABS | N_EXT; | |
3011 | else | |
e135f41b | 3012 | { |
57402f1e | 3013 | BFD_ASSERT (pr->u.section->owner == flaginfo->output_bfd); |
116c20d2 | 3014 | r_index = pr->u.section->target_index; |
e135f41b NC |
3015 | } |
3016 | } | |
116c20d2 | 3017 | else |
e135f41b | 3018 | { |
116c20d2 | 3019 | struct aout_link_hash_entry *h; |
e135f41b | 3020 | |
116c20d2 NC |
3021 | BFD_ASSERT (p->type == bfd_symbol_reloc_link_order); |
3022 | r_extern = 1; | |
3023 | h = ((struct aout_link_hash_entry *) | |
57402f1e | 3024 | bfd_wrapped_link_hash_lookup (flaginfo->output_bfd, flaginfo->info, |
116c20d2 NC |
3025 | pr->u.name, FALSE, FALSE, TRUE)); |
3026 | if (h != NULL | |
3027 | && h->indx >= 0) | |
3028 | r_index = h->indx; | |
3029 | else if (h != NULL) | |
3030 | { | |
3031 | /* We decided to strip this symbol, but it turns out that we | |
3032 | can't. Note that we lose the other and desc information | |
3033 | here. I don't think that will ever matter for a global | |
3034 | symbol. */ | |
3035 | h->indx = -2; | |
3036 | h->written = FALSE; | |
57402f1e | 3037 | if (!aout_link_write_other_symbol (&h->root.root, flaginfo)) |
116c20d2 NC |
3038 | return FALSE; |
3039 | r_index = h->indx; | |
e135f41b | 3040 | } |
116c20d2 | 3041 | else |
e135f41b | 3042 | { |
1a72702b AM |
3043 | (*flaginfo->info->callbacks->unattached_reloc) |
3044 | (flaginfo->info, pr->u.name, NULL, NULL, (bfd_vma) 0); | |
116c20d2 | 3045 | r_index = 0; |
e135f41b NC |
3046 | } |
3047 | } | |
3048 | ||
57402f1e | 3049 | howto = bfd_reloc_type_lookup (flaginfo->output_bfd, pr->reloc); |
116c20d2 | 3050 | if (howto == 0) |
e135f41b | 3051 | { |
116c20d2 NC |
3052 | bfd_set_error (bfd_error_bad_value); |
3053 | return FALSE; | |
e135f41b NC |
3054 | } |
3055 | ||
57402f1e NC |
3056 | if (o == obj_textsec (flaginfo->output_bfd)) |
3057 | reloff_ptr = &flaginfo->treloff; | |
3058 | else if (o == obj_datasec (flaginfo->output_bfd)) | |
3059 | reloff_ptr = &flaginfo->dreloff; | |
116c20d2 NC |
3060 | else |
3061 | abort (); | |
e135f41b | 3062 | |
116c20d2 | 3063 | #ifdef MY_put_reloc |
57402f1e | 3064 | MY_put_reloc(flaginfo->output_bfd, r_extern, r_index, p->offset, howto, |
116c20d2 NC |
3065 | &srel); |
3066 | #else | |
3067 | { | |
3068 | int r_pcrel; | |
3069 | int r_baserel; | |
3070 | int r_jmptable; | |
3071 | int r_relative; | |
3072 | int r_length; | |
e135f41b | 3073 | |
116c20d2 | 3074 | fprintf (stderr, "TODO: line %d in bfd/pdp11.c\n", __LINE__); |
e135f41b | 3075 | |
116c20d2 NC |
3076 | r_pcrel = howto->pc_relative; |
3077 | r_baserel = (howto->type & 8) != 0; | |
3078 | r_jmptable = (howto->type & 16) != 0; | |
3079 | r_relative = (howto->type & 32) != 0; | |
3080 | r_length = howto->size; | |
e135f41b | 3081 | |
57402f1e NC |
3082 | PUT_WORD (flaginfo->output_bfd, p->offset, srel.r_address); |
3083 | if (bfd_header_big_endian (flaginfo->output_bfd)) | |
116c20d2 NC |
3084 | { |
3085 | srel.r_index[0] = r_index >> 16; | |
3086 | srel.r_index[1] = r_index >> 8; | |
3087 | srel.r_index[2] = r_index; | |
3088 | srel.r_type[0] = | |
3089 | ((r_extern ? RELOC_STD_BITS_EXTERN_BIG : 0) | |
3090 | | (r_pcrel ? RELOC_STD_BITS_PCREL_BIG : 0) | |
3091 | | (r_baserel ? RELOC_STD_BITS_BASEREL_BIG : 0) | |
3092 | | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_BIG : 0) | |
3093 | | (r_relative ? RELOC_STD_BITS_RELATIVE_BIG : 0) | |
3094 | | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG)); | |
3095 | } | |
3096 | else | |
3097 | { | |
3098 | srel.r_index[2] = r_index >> 16; | |
3099 | srel.r_index[1] = r_index >> 8; | |
3100 | srel.r_index[0] = r_index; | |
3101 | srel.r_type[0] = | |
3102 | ((r_extern ? RELOC_STD_BITS_EXTERN_LITTLE : 0) | |
3103 | | (r_pcrel ? RELOC_STD_BITS_PCREL_LITTLE : 0) | |
3104 | | (r_baserel ? RELOC_STD_BITS_BASEREL_LITTLE : 0) | |
3105 | | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_LITTLE : 0) | |
3106 | | (r_relative ? RELOC_STD_BITS_RELATIVE_LITTLE : 0) | |
3107 | | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE)); | |
3108 | } | |
3109 | } | |
3110 | #endif | |
3111 | rel_ptr = (void *) &srel; | |
e135f41b | 3112 | |
116c20d2 NC |
3113 | /* We have to write the addend into the object file, since |
3114 | standard a.out relocs are in place. It would be more | |
3115 | reliable if we had the current contents of the file here, | |
3116 | rather than assuming zeroes, but we can't read the file since | |
3117 | it was opened using bfd_openw. */ | |
3118 | if (pr->addend != 0) | |
e135f41b | 3119 | { |
116c20d2 NC |
3120 | bfd_size_type size; |
3121 | bfd_reloc_status_type r; | |
3122 | bfd_byte *buf; | |
3123 | bfd_boolean ok; | |
3124 | ||
3125 | size = bfd_get_reloc_size (howto); | |
3126 | buf = bfd_zmalloc (size); | |
6346d5ca | 3127 | if (buf == NULL && size != 0) |
116c20d2 | 3128 | return FALSE; |
57402f1e | 3129 | r = MY_relocate_contents (howto, flaginfo->output_bfd, |
116c20d2 NC |
3130 | pr->addend, buf); |
3131 | switch (r) | |
3132 | { | |
3133 | case bfd_reloc_ok: | |
3134 | break; | |
3135 | default: | |
3136 | case bfd_reloc_outofrange: | |
3137 | abort (); | |
3138 | case bfd_reloc_overflow: | |
1a72702b AM |
3139 | (*flaginfo->info->callbacks->reloc_overflow) |
3140 | (flaginfo->info, NULL, | |
3141 | (p->type == bfd_section_reloc_link_order | |
fd361982 | 3142 | ? bfd_section_name (pr->u.section) |
1a72702b AM |
3143 | : pr->u.name), |
3144 | howto->name, pr->addend, NULL, | |
3145 | (asection *) NULL, (bfd_vma) 0); | |
116c20d2 NC |
3146 | break; |
3147 | } | |
57402f1e | 3148 | ok = bfd_set_section_contents (flaginfo->output_bfd, o, |
116c20d2 NC |
3149 | (void *) buf, |
3150 | (file_ptr) p->offset, | |
3151 | size); | |
3152 | free (buf); | |
3153 | if (! ok) | |
3154 | return FALSE; | |
e135f41b NC |
3155 | } |
3156 | ||
57402f1e NC |
3157 | rel_size = obj_reloc_entry_size (flaginfo->output_bfd); |
3158 | if (bfd_seek (flaginfo->output_bfd, *reloff_ptr, SEEK_SET) != 0 | |
3159 | || bfd_bwrite (rel_ptr, rel_size, flaginfo->output_bfd) != rel_size) | |
b34976b6 | 3160 | return FALSE; |
e135f41b | 3161 | |
116c20d2 | 3162 | *reloff_ptr += rel_size; |
e135f41b | 3163 | |
116c20d2 NC |
3164 | /* Assert that the relocs have not run into the symbols, and that n |
3165 | the text relocs have not run into the data relocs. */ | |
57402f1e NC |
3166 | BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (flaginfo->output_bfd) |
3167 | && (reloff_ptr != &flaginfo->treloff | |
116c20d2 | 3168 | || (*reloff_ptr |
57402f1e | 3169 | <= obj_datasec (flaginfo->output_bfd)->rel_filepos))); |
e135f41b | 3170 | |
116c20d2 NC |
3171 | return TRUE; |
3172 | } | |
e135f41b | 3173 | |
116c20d2 NC |
3174 | /* Get the section corresponding to a reloc index. */ |
3175 | ||
3176 | static inline asection * | |
3177 | aout_reloc_type_to_section (bfd *abfd, int type) | |
3178 | { | |
3179 | switch (type) | |
e135f41b | 3180 | { |
116c20d2 NC |
3181 | case RTEXT: return obj_textsec (abfd); |
3182 | case RDATA: return obj_datasec (abfd); | |
3183 | case RBSS: return obj_bsssec (abfd); | |
3184 | case RABS: return bfd_abs_section_ptr; | |
3185 | case REXT: return bfd_und_section_ptr; | |
3186 | default: abort (); | |
e135f41b | 3187 | } |
e135f41b NC |
3188 | } |
3189 | ||
b34976b6 | 3190 | static bfd_boolean |
57402f1e | 3191 | pdp11_aout_link_input_section (struct aout_final_link_info *flaginfo, |
116c20d2 NC |
3192 | bfd *input_bfd, |
3193 | asection *input_section, | |
3194 | bfd_byte *relocs, | |
3195 | bfd_size_type rel_size, | |
3196 | bfd_byte *contents) | |
e135f41b | 3197 | { |
116c20d2 NC |
3198 | bfd_boolean (*check_dynamic_reloc) |
3199 | (struct bfd_link_info *, bfd *, asection *, | |
3200 | struct aout_link_hash_entry *, void *, bfd_byte *, bfd_boolean *, | |
3201 | bfd_vma *); | |
e135f41b | 3202 | bfd *output_bfd; |
116c20d2 NC |
3203 | bfd_boolean relocatable; |
3204 | struct external_nlist *syms; | |
e135f41b | 3205 | char *strings; |
116c20d2 | 3206 | struct aout_link_hash_entry **sym_hashes; |
e135f41b | 3207 | int *symbol_map; |
116c20d2 NC |
3208 | bfd_byte *rel; |
3209 | bfd_byte *rel_end; | |
e135f41b | 3210 | |
57402f1e | 3211 | output_bfd = flaginfo->output_bfd; |
116c20d2 | 3212 | check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc; |
e135f41b | 3213 | |
116c20d2 NC |
3214 | BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_SIZE); |
3215 | BFD_ASSERT (input_bfd->xvec->header_byteorder | |
3216 | == output_bfd->xvec->header_byteorder); | |
e135f41b | 3217 | |
0e1862bb | 3218 | relocatable = bfd_link_relocatable (flaginfo->info); |
116c20d2 NC |
3219 | syms = obj_aout_external_syms (input_bfd); |
3220 | strings = obj_aout_external_strings (input_bfd); | |
3221 | sym_hashes = obj_aout_sym_hashes (input_bfd); | |
57402f1e | 3222 | symbol_map = flaginfo->symbol_map; |
116c20d2 | 3223 | |
116c20d2 NC |
3224 | rel = relocs; |
3225 | rel_end = rel + rel_size; | |
3226 | for (; rel < rel_end; rel += RELOC_SIZE) | |
e135f41b | 3227 | { |
116c20d2 NC |
3228 | bfd_vma r_addr; |
3229 | int r_index; | |
3230 | int r_type; | |
3231 | int r_pcrel; | |
3232 | int r_extern; | |
3233 | reloc_howto_type *howto; | |
3234 | struct aout_link_hash_entry *h = NULL; | |
3235 | bfd_vma relocation; | |
3236 | bfd_reloc_status_type r; | |
3237 | int reloc_entry; | |
e135f41b | 3238 | |
116c20d2 NC |
3239 | reloc_entry = GET_WORD (input_bfd, (void *) rel); |
3240 | if (reloc_entry == 0) | |
e135f41b NC |
3241 | continue; |
3242 | ||
116c20d2 NC |
3243 | { |
3244 | unsigned int howto_idx; | |
e135f41b | 3245 | |
116c20d2 NC |
3246 | r_index = (reloc_entry & RIDXMASK) >> 4; |
3247 | r_type = reloc_entry & RTYPE; | |
3248 | r_pcrel = reloc_entry & RELFLG; | |
3249 | r_addr = (char *) rel - (char *) relocs; | |
e135f41b | 3250 | |
116c20d2 | 3251 | r_extern = (r_type == REXT); |
e135f41b | 3252 | |
116c20d2 NC |
3253 | howto_idx = r_pcrel; |
3254 | BFD_ASSERT (howto_idx < TABLE_SIZE (howto_table_pdp11)); | |
3255 | howto = howto_table_pdp11 + howto_idx; | |
3256 | } | |
3257 | ||
3258 | if (relocatable) | |
e135f41b | 3259 | { |
116c20d2 NC |
3260 | /* We are generating a relocatable output file, and must |
3261 | modify the reloc accordingly. */ | |
3262 | if (r_extern) | |
3263 | { | |
3264 | /* If we know the symbol this relocation is against, | |
3265 | convert it into a relocation against a section. This | |
3266 | is what the native linker does. */ | |
3267 | h = sym_hashes[r_index]; | |
3268 | if (h != NULL | |
3269 | && (h->root.type == bfd_link_hash_defined | |
3270 | || h->root.type == bfd_link_hash_defweak)) | |
3271 | { | |
3272 | asection *output_section; | |
e135f41b | 3273 | |
116c20d2 NC |
3274 | /* Compute a new r_index. */ |
3275 | output_section = h->root.u.def.section->output_section; | |
e135f41b | 3276 | if (output_section == obj_textsec (output_bfd)) |
116c20d2 | 3277 | r_type = N_TEXT; |
e135f41b | 3278 | else if (output_section == obj_datasec (output_bfd)) |
116c20d2 | 3279 | r_type = N_DATA; |
e135f41b | 3280 | else if (output_section == obj_bsssec (output_bfd)) |
116c20d2 | 3281 | r_type = N_BSS; |
e135f41b | 3282 | else |
116c20d2 | 3283 | r_type = N_ABS; |
e135f41b | 3284 | |
116c20d2 NC |
3285 | /* Add the symbol value and the section VMA to the |
3286 | addend stored in the contents. */ | |
3287 | relocation = (h->root.u.def.value | |
3288 | + output_section->vma | |
3289 | + h->root.u.def.section->output_offset); | |
e135f41b | 3290 | } |
116c20d2 | 3291 | else |
e135f41b | 3292 | { |
116c20d2 NC |
3293 | /* We must change r_index according to the symbol |
3294 | map. */ | |
3295 | r_index = symbol_map[r_index]; | |
e135f41b | 3296 | |
116c20d2 | 3297 | if (r_index == -1) |
e135f41b | 3298 | { |
116c20d2 | 3299 | if (h != NULL) |
e135f41b | 3300 | { |
116c20d2 | 3301 | /* We decided to strip this symbol, but it |
07d6d2b8 AM |
3302 | turns out that we can't. Note that we |
3303 | lose the other and desc information here. | |
3304 | I don't think that will ever matter for a | |
3305 | global symbol. */ | |
116c20d2 | 3306 | if (h->indx < 0) |
e135f41b | 3307 | { |
116c20d2 NC |
3308 | h->indx = -2; |
3309 | h->written = FALSE; | |
7686d77d | 3310 | if (!aout_link_write_other_symbol (&h->root.root, |
57402f1e | 3311 | flaginfo)) |
116c20d2 | 3312 | return FALSE; |
e135f41b | 3313 | } |
116c20d2 NC |
3314 | r_index = h->indx; |
3315 | } | |
3316 | else | |
3317 | { | |
3318 | const char *name; | |
3319 | ||
3320 | name = strings + GET_WORD (input_bfd, | |
3321 | syms[r_index].e_strx); | |
1a72702b AM |
3322 | (*flaginfo->info->callbacks->unattached_reloc) |
3323 | (flaginfo->info, name, input_bfd, input_section, | |
3324 | r_addr); | |
116c20d2 | 3325 | r_index = 0; |
e135f41b NC |
3326 | } |
3327 | } | |
116c20d2 NC |
3328 | |
3329 | relocation = 0; | |
e135f41b NC |
3330 | } |
3331 | ||
116c20d2 NC |
3332 | /* Write out the new r_index value. */ |
3333 | reloc_entry = GET_WORD (input_bfd, rel); | |
3334 | reloc_entry &= RIDXMASK; | |
3335 | reloc_entry |= r_index << 4; | |
3336 | PUT_WORD (input_bfd, reloc_entry, rel); | |
3337 | } | |
3338 | else | |
3339 | { | |
3340 | asection *section; | |
3341 | ||
3342 | /* This is a relocation against a section. We must | |
3343 | adjust by the amount that the section moved. */ | |
3344 | section = aout_reloc_type_to_section (input_bfd, r_type); | |
3345 | relocation = (section->output_section->vma | |
3346 | + section->output_offset | |
3347 | - section->vma); | |
3348 | } | |
3349 | ||
3350 | /* Change the address of the relocation. */ | |
3351 | fprintf (stderr, "TODO: change the address of the relocation\n"); | |
3352 | ||
3353 | /* Adjust a PC relative relocation by removing the reference | |
3354 | to the original address in the section and including the | |
3355 | reference to the new address. */ | |
3356 | if (r_pcrel) | |
3357 | relocation -= (input_section->output_section->vma | |
3358 | + input_section->output_offset | |
3359 | - input_section->vma); | |
3360 | ||
3361 | #ifdef MY_relocatable_reloc | |
3362 | MY_relocatable_reloc (howto, output_bfd, rel, relocation, r_addr); | |
3363 | #endif | |
3364 | ||
3365 | if (relocation == 0) | |
3366 | r = bfd_reloc_ok; | |
3367 | else | |
3368 | r = MY_relocate_contents (howto, | |
3369 | input_bfd, relocation, | |
3370 | contents + r_addr); | |
3371 | } | |
3372 | else | |
3373 | { | |
3374 | bfd_boolean hundef; | |
3375 | ||
3376 | /* We are generating an executable, and must do a full | |
3377 | relocation. */ | |
3378 | hundef = FALSE; | |
3379 | if (r_extern) | |
3380 | { | |
3381 | h = sym_hashes[r_index]; | |
3382 | ||
3383 | if (h != NULL | |
3384 | && (h->root.type == bfd_link_hash_defined | |
3385 | || h->root.type == bfd_link_hash_defweak)) | |
e135f41b | 3386 | { |
116c20d2 NC |
3387 | relocation = (h->root.u.def.value |
3388 | + h->root.u.def.section->output_section->vma | |
3389 | + h->root.u.def.section->output_offset); | |
e135f41b | 3390 | } |
116c20d2 NC |
3391 | else if (h != NULL |
3392 | && h->root.type == bfd_link_hash_undefweak) | |
3393 | relocation = 0; | |
e135f41b NC |
3394 | else |
3395 | { | |
116c20d2 NC |
3396 | hundef = TRUE; |
3397 | relocation = 0; | |
3398 | } | |
3399 | } | |
3400 | else | |
3401 | { | |
3402 | asection *section; | |
e135f41b | 3403 | |
116c20d2 NC |
3404 | section = aout_reloc_type_to_section (input_bfd, r_type); |
3405 | relocation = (section->output_section->vma | |
3406 | + section->output_offset | |
3407 | - section->vma); | |
3408 | if (r_pcrel) | |
3409 | relocation += input_section->vma; | |
3410 | } | |
e135f41b | 3411 | |
116c20d2 NC |
3412 | if (check_dynamic_reloc != NULL) |
3413 | { | |
3414 | bfd_boolean skip; | |
e135f41b | 3415 | |
116c20d2 | 3416 | if (! ((*check_dynamic_reloc) |
57402f1e | 3417 | (flaginfo->info, input_bfd, input_section, h, |
116c20d2 NC |
3418 | (void *) rel, contents, &skip, &relocation))) |
3419 | return FALSE; | |
3420 | if (skip) | |
3421 | continue; | |
3422 | } | |
3423 | ||
3424 | /* Now warn if a global symbol is undefined. We could not | |
07d6d2b8 AM |
3425 | do this earlier, because check_dynamic_reloc might want |
3426 | to skip this reloc. */ | |
0e1862bb | 3427 | if (hundef && ! bfd_link_pic (flaginfo->info)) |
116c20d2 NC |
3428 | { |
3429 | const char *name; | |
3430 | ||
3431 | if (h != NULL) | |
3432 | name = h->root.root.string; | |
3433 | else | |
3434 | name = strings + GET_WORD (input_bfd, syms[r_index].e_strx); | |
1a72702b AM |
3435 | (*flaginfo->info->callbacks->undefined_symbol) |
3436 | (flaginfo->info, name, input_bfd, input_section, | |
3437 | r_addr, TRUE); | |
e135f41b | 3438 | } |
116c20d2 NC |
3439 | |
3440 | r = MY_final_link_relocate (howto, | |
3441 | input_bfd, input_section, | |
3442 | contents, r_addr, relocation, | |
3443 | (bfd_vma) 0); | |
e135f41b NC |
3444 | } |
3445 | ||
116c20d2 | 3446 | if (r != bfd_reloc_ok) |
e135f41b | 3447 | { |
116c20d2 NC |
3448 | switch (r) |
3449 | { | |
3450 | default: | |
3451 | case bfd_reloc_outofrange: | |
3452 | abort (); | |
3453 | case bfd_reloc_overflow: | |
3454 | { | |
3455 | const char *name; | |
3456 | ||
3457 | if (h != NULL) | |
3458 | name = NULL; | |
3459 | else if (r_extern) | |
3460 | name = strings + GET_WORD (input_bfd, | |
3461 | syms[r_index].e_strx); | |
3462 | else | |
3463 | { | |
3464 | asection *s; | |
3465 | ||
3466 | s = aout_reloc_type_to_section (input_bfd, r_type); | |
fd361982 | 3467 | name = bfd_section_name (s); |
116c20d2 | 3468 | } |
1a72702b AM |
3469 | (*flaginfo->info->callbacks->reloc_overflow) |
3470 | (flaginfo->info, (h ? &h->root : NULL), name, howto->name, | |
3471 | (bfd_vma) 0, input_bfd, input_section, r_addr); | |
116c20d2 NC |
3472 | } |
3473 | break; | |
3474 | } | |
e135f41b | 3475 | } |
e135f41b NC |
3476 | } |
3477 | ||
116c20d2 NC |
3478 | return TRUE; |
3479 | } | |
3480 | ||
3481 | /* Link an a.out section into the output file. */ | |
3482 | ||
3483 | static bfd_boolean | |
57402f1e | 3484 | aout_link_input_section (struct aout_final_link_info *flaginfo, |
116c20d2 NC |
3485 | bfd *input_bfd, |
3486 | asection *input_section, | |
3487 | file_ptr *reloff_ptr, | |
3488 | bfd_size_type rel_size) | |
3489 | { | |
3490 | bfd_size_type input_size; | |
3491 | void * relocs; | |
3492 | ||
3493 | /* Get the section contents. */ | |
3494 | input_size = input_section->size; | |
3495 | if (! bfd_get_section_contents (input_bfd, input_section, | |
57402f1e | 3496 | (void *) flaginfo->contents, |
116c20d2 NC |
3497 | (file_ptr) 0, input_size)) |
3498 | return FALSE; | |
3499 | ||
3500 | /* Read in the relocs if we haven't already done it. */ | |
3501 | if (aout_section_data (input_section) != NULL | |
3502 | && aout_section_data (input_section)->relocs != NULL) | |
3503 | relocs = aout_section_data (input_section)->relocs; | |
3504 | else | |
e135f41b | 3505 | { |
57402f1e | 3506 | relocs = flaginfo->relocs; |
116c20d2 NC |
3507 | if (rel_size > 0) |
3508 | { | |
3509 | if (bfd_seek (input_bfd, input_section->rel_filepos, SEEK_SET) != 0 | |
3510 | || bfd_bread (relocs, rel_size, input_bfd) != rel_size) | |
3511 | return FALSE; | |
3512 | } | |
3513 | } | |
e135f41b | 3514 | |
116c20d2 | 3515 | /* Relocate the section contents. */ |
57402f1e | 3516 | if (! pdp11_aout_link_input_section (flaginfo, input_bfd, input_section, |
116c20d2 | 3517 | (bfd_byte *) relocs, |
57402f1e | 3518 | rel_size, flaginfo->contents)) |
116c20d2 NC |
3519 | return FALSE; |
3520 | ||
3521 | /* Write out the section contents. */ | |
57402f1e | 3522 | if (! bfd_set_section_contents (flaginfo->output_bfd, |
116c20d2 | 3523 | input_section->output_section, |
57402f1e | 3524 | (void *) flaginfo->contents, |
116c20d2 NC |
3525 | (file_ptr) input_section->output_offset, |
3526 | input_size)) | |
3527 | return FALSE; | |
3528 | ||
3529 | /* If we are producing relocatable output, the relocs were | |
3530 | modified, and we now write them out. */ | |
0e1862bb | 3531 | if (bfd_link_relocatable (flaginfo->info) && rel_size > 0) |
116c20d2 | 3532 | { |
57402f1e | 3533 | if (bfd_seek (flaginfo->output_bfd, *reloff_ptr, SEEK_SET) != 0) |
116c20d2 | 3534 | return FALSE; |
57402f1e | 3535 | if (bfd_bwrite (relocs, rel_size, flaginfo->output_bfd) != rel_size) |
116c20d2 NC |
3536 | return FALSE; |
3537 | *reloff_ptr += rel_size; | |
3538 | ||
3539 | /* Assert that the relocs have not run into the symbols, and | |
3540 | that if these are the text relocs they have not run into the | |
3541 | data relocs. */ | |
57402f1e NC |
3542 | BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (flaginfo->output_bfd) |
3543 | && (reloff_ptr != &flaginfo->treloff | |
116c20d2 | 3544 | || (*reloff_ptr |
57402f1e | 3545 | <= obj_datasec (flaginfo->output_bfd)->rel_filepos))); |
116c20d2 NC |
3546 | } |
3547 | ||
3548 | return TRUE; | |
3549 | } | |
3550 | ||
3551 | /* Link an a.out input BFD into the output file. */ | |
3552 | ||
3553 | static bfd_boolean | |
57402f1e | 3554 | aout_link_input_bfd (struct aout_final_link_info *flaginfo, bfd *input_bfd) |
116c20d2 | 3555 | { |
116c20d2 NC |
3556 | BFD_ASSERT (bfd_get_format (input_bfd) == bfd_object); |
3557 | ||
3558 | /* If this is a dynamic object, it may need special handling. */ | |
3559 | if ((input_bfd->flags & DYNAMIC) != 0 | |
3560 | && aout_backend_info (input_bfd)->link_dynamic_object != NULL) | |
3561 | return ((*aout_backend_info (input_bfd)->link_dynamic_object) | |
57402f1e | 3562 | (flaginfo->info, input_bfd)); |
116c20d2 NC |
3563 | |
3564 | /* Get the symbols. We probably have them already, unless | |
57402f1e | 3565 | flaginfo->info->keep_memory is FALSE. */ |
116c20d2 NC |
3566 | if (! aout_get_external_symbols (input_bfd)) |
3567 | return FALSE; | |
3568 | ||
116c20d2 | 3569 | /* Write out the symbols and get a map of the new indices. The map |
57402f1e NC |
3570 | is placed into flaginfo->symbol_map. */ |
3571 | if (! aout_link_write_symbols (flaginfo, input_bfd)) | |
116c20d2 NC |
3572 | return FALSE; |
3573 | ||
3574 | /* Relocate and write out the sections. These functions use the | |
3575 | symbol map created by aout_link_write_symbols. The linker_mark | |
3576 | field will be set if these sections are to be included in the | |
3577 | link, which will normally be the case. */ | |
3578 | if (obj_textsec (input_bfd)->linker_mark) | |
3579 | { | |
57402f1e | 3580 | if (! aout_link_input_section (flaginfo, input_bfd, |
116c20d2 | 3581 | obj_textsec (input_bfd), |
57402f1e | 3582 | &flaginfo->treloff, |
116c20d2 NC |
3583 | exec_hdr (input_bfd)->a_trsize)) |
3584 | return FALSE; | |
3585 | } | |
3586 | if (obj_datasec (input_bfd)->linker_mark) | |
3587 | { | |
57402f1e | 3588 | if (! aout_link_input_section (flaginfo, input_bfd, |
116c20d2 | 3589 | obj_datasec (input_bfd), |
57402f1e | 3590 | &flaginfo->dreloff, |
116c20d2 | 3591 | exec_hdr (input_bfd)->a_drsize)) |
b34976b6 | 3592 | return FALSE; |
116c20d2 NC |
3593 | } |
3594 | ||
3595 | /* If we are not keeping memory, we don't need the symbols any | |
3596 | longer. We still need them if we are keeping memory, because the | |
3597 | strings in the hash table point into them. */ | |
57402f1e | 3598 | if (! flaginfo->info->keep_memory) |
116c20d2 NC |
3599 | { |
3600 | if (! aout_link_free_symbols (input_bfd)) | |
b34976b6 | 3601 | return FALSE; |
e135f41b NC |
3602 | } |
3603 | ||
b34976b6 | 3604 | return TRUE; |
e135f41b NC |
3605 | } |
3606 | ||
116c20d2 NC |
3607 | /* Do the final link step. This is called on the output BFD. The |
3608 | INFO structure should point to a list of BFDs linked through the | |
c72f2fb2 | 3609 | link.next field which can be used to find each BFD which takes part |
116c20d2 NC |
3610 | in the output. Also, each section in ABFD should point to a list |
3611 | of bfd_link_order structures which list all the input sections for | |
3612 | the output section. */ | |
e135f41b | 3613 | |
116c20d2 NC |
3614 | bfd_boolean |
3615 | NAME (aout, final_link) (bfd *abfd, | |
3616 | struct bfd_link_info *info, | |
3617 | void (*callback) (bfd *, file_ptr *, file_ptr *, file_ptr *)) | |
e135f41b | 3618 | { |
116c20d2 NC |
3619 | struct aout_final_link_info aout_info; |
3620 | bfd_boolean includes_hash_initialized = FALSE; | |
3621 | bfd *sub; | |
3622 | bfd_size_type trsize, drsize; | |
3623 | bfd_size_type max_contents_size; | |
3624 | bfd_size_type max_relocs_size; | |
3625 | bfd_size_type max_sym_count; | |
116c20d2 NC |
3626 | struct bfd_link_order *p; |
3627 | asection *o; | |
3628 | bfd_boolean have_link_order_relocs; | |
e135f41b | 3629 | |
0e1862bb | 3630 | if (bfd_link_pic (info)) |
116c20d2 | 3631 | abfd->flags |= DYNAMIC; |
e92d460e | 3632 | |
116c20d2 NC |
3633 | aout_info.info = info; |
3634 | aout_info.output_bfd = abfd; | |
3635 | aout_info.contents = NULL; | |
3636 | aout_info.relocs = NULL; | |
3637 | aout_info.symbol_map = NULL; | |
3638 | aout_info.output_syms = NULL; | |
e135f41b | 3639 | |
66eb6687 AM |
3640 | if (!bfd_hash_table_init_n (&aout_info.includes.root, |
3641 | aout_link_includes_newfunc, | |
3642 | sizeof (struct aout_link_includes_entry), | |
3643 | 251)) | |
116c20d2 NC |
3644 | goto error_return; |
3645 | includes_hash_initialized = TRUE; | |
3646 | ||
3647 | /* Figure out the largest section size. Also, if generating | |
3648 | relocatable output, count the relocs. */ | |
3649 | trsize = 0; | |
3650 | drsize = 0; | |
3651 | max_contents_size = 0; | |
3652 | max_relocs_size = 0; | |
3653 | max_sym_count = 0; | |
c72f2fb2 | 3654 | for (sub = info->input_bfds; sub != NULL; sub = sub->link.next) |
e135f41b | 3655 | { |
116c20d2 NC |
3656 | size_t sz; |
3657 | ||
0e1862bb | 3658 | if (bfd_link_relocatable (info)) |
e135f41b | 3659 | { |
116c20d2 NC |
3660 | if (bfd_get_flavour (sub) == bfd_target_aout_flavour) |
3661 | { | |
3662 | trsize += exec_hdr (sub)->a_trsize; | |
3663 | drsize += exec_hdr (sub)->a_drsize; | |
3664 | } | |
3665 | else | |
3666 | { | |
3667 | /* FIXME: We need to identify the .text and .data sections | |
3668 | and call get_reloc_upper_bound and canonicalize_reloc to | |
3669 | work out the number of relocs needed, and then multiply | |
3670 | by the reloc size. */ | |
4eca0228 | 3671 | _bfd_error_handler |
695344c0 | 3672 | /* xgettext:c-format */ |
871b3ab2 | 3673 | (_("%pB: relocatable link from %s to %s not supported"), |
dae82561 | 3674 | abfd, sub->xvec->name, abfd->xvec->name); |
116c20d2 NC |
3675 | bfd_set_error (bfd_error_invalid_operation); |
3676 | goto error_return; | |
3677 | } | |
e135f41b | 3678 | } |
e135f41b | 3679 | |
116c20d2 NC |
3680 | if (bfd_get_flavour (sub) == bfd_target_aout_flavour) |
3681 | { | |
3682 | sz = obj_textsec (sub)->size; | |
3683 | if (sz > max_contents_size) | |
3684 | max_contents_size = sz; | |
3685 | sz = obj_datasec (sub)->size; | |
3686 | if (sz > max_contents_size) | |
3687 | max_contents_size = sz; | |
e135f41b | 3688 | |
116c20d2 NC |
3689 | sz = exec_hdr (sub)->a_trsize; |
3690 | if (sz > max_relocs_size) | |
3691 | max_relocs_size = sz; | |
3692 | sz = exec_hdr (sub)->a_drsize; | |
3693 | if (sz > max_relocs_size) | |
3694 | max_relocs_size = sz; | |
e135f41b | 3695 | |
116c20d2 NC |
3696 | sz = obj_aout_external_sym_count (sub); |
3697 | if (sz > max_sym_count) | |
3698 | max_sym_count = sz; | |
3699 | } | |
e135f41b NC |
3700 | } |
3701 | ||
0e1862bb | 3702 | if (bfd_link_relocatable (info)) |
e135f41b | 3703 | { |
116c20d2 NC |
3704 | if (obj_textsec (abfd) != NULL) |
3705 | trsize += (_bfd_count_link_order_relocs (obj_textsec (abfd) | |
8423293d | 3706 | ->map_head.link_order) |
116c20d2 NC |
3707 | * obj_reloc_entry_size (abfd)); |
3708 | if (obj_datasec (abfd) != NULL) | |
3709 | drsize += (_bfd_count_link_order_relocs (obj_datasec (abfd) | |
8423293d | 3710 | ->map_head.link_order) |
116c20d2 | 3711 | * obj_reloc_entry_size (abfd)); |
e135f41b | 3712 | } |
e135f41b | 3713 | |
116c20d2 NC |
3714 | exec_hdr (abfd)->a_trsize = trsize; |
3715 | exec_hdr (abfd)->a_drsize = drsize; | |
3716 | exec_hdr (abfd)->a_entry = bfd_get_start_address (abfd); | |
3717 | ||
3718 | /* Adjust the section sizes and vmas according to the magic number. | |
3719 | This sets a_text, a_data and a_bss in the exec_hdr and sets the | |
3720 | filepos for each section. */ | |
3a8c4a5b | 3721 | if (! NAME (aout, adjust_sizes_and_vmas) (abfd)) |
116c20d2 NC |
3722 | goto error_return; |
3723 | ||
3724 | /* The relocation and symbol file positions differ among a.out | |
3725 | targets. We are passed a callback routine from the backend | |
3726 | specific code to handle this. | |
3727 | FIXME: At this point we do not know how much space the symbol | |
3728 | table will require. This will not work for any (nonstandard) | |
3729 | a.out target that needs to know the symbol table size before it | |
dc12032b | 3730 | can compute the relocation file positions. */ |
116c20d2 NC |
3731 | (*callback) (abfd, &aout_info.treloff, &aout_info.dreloff, |
3732 | &aout_info.symoff); | |
3733 | obj_textsec (abfd)->rel_filepos = aout_info.treloff; | |
3734 | obj_datasec (abfd)->rel_filepos = aout_info.dreloff; | |
3735 | obj_sym_filepos (abfd) = aout_info.symoff; | |
3736 | ||
3737 | /* We keep a count of the symbols as we output them. */ | |
3738 | obj_aout_external_sym_count (abfd) = 0; | |
3739 | ||
3740 | /* We accumulate the string table as we write out the symbols. */ | |
3741 | aout_info.strtab = _bfd_stringtab_init (); | |
3742 | if (aout_info.strtab == NULL) | |
3743 | goto error_return; | |
3744 | ||
3745 | /* Allocate buffers to hold section contents and relocs. */ | |
3746 | aout_info.contents = bfd_malloc (max_contents_size); | |
3747 | aout_info.relocs = bfd_malloc (max_relocs_size); | |
3748 | aout_info.symbol_map = bfd_malloc (max_sym_count * sizeof (int *)); | |
3749 | aout_info.output_syms = bfd_malloc ((max_sym_count + 1) | |
3750 | * sizeof (struct external_nlist)); | |
3751 | if ((aout_info.contents == NULL && max_contents_size != 0) | |
3752 | || (aout_info.relocs == NULL && max_relocs_size != 0) | |
3753 | || (aout_info.symbol_map == NULL && max_sym_count != 0) | |
3754 | || aout_info.output_syms == NULL) | |
3755 | goto error_return; | |
3756 | ||
3757 | /* If we have a symbol named __DYNAMIC, force it out now. This is | |
3758 | required by SunOS. Doing this here rather than in sunos.c is a | |
3759 | hack, but it's easier than exporting everything which would be | |
3760 | needed. */ | |
3761 | { | |
3762 | struct aout_link_hash_entry *h; | |
3763 | ||
3764 | h = aout_link_hash_lookup (aout_hash_table (info), "__DYNAMIC", | |
3765 | FALSE, FALSE, FALSE); | |
3766 | if (h != NULL) | |
7686d77d | 3767 | aout_link_write_other_symbol (&h->root.root, &aout_info); |
116c20d2 NC |
3768 | } |
3769 | ||
3770 | /* The most time efficient way to do the link would be to read all | |
3771 | the input object files into memory and then sort out the | |
3772 | information into the output file. Unfortunately, that will | |
3773 | probably use too much memory. Another method would be to step | |
3774 | through everything that composes the text section and write it | |
3775 | out, and then everything that composes the data section and write | |
3776 | it out, and then write out the relocs, and then write out the | |
3777 | symbols. Unfortunately, that requires reading stuff from each | |
3778 | input file several times, and we will not be able to keep all the | |
3779 | input files open simultaneously, and reopening them will be slow. | |
3780 | ||
3781 | What we do is basically process one input file at a time. We do | |
3782 | everything we need to do with an input file once--copy over the | |
3783 | section contents, handle the relocation information, and write | |
3784 | out the symbols--and then we throw away the information we read | |
3785 | from it. This approach requires a lot of lseeks of the output | |
3786 | file, which is unfortunate but still faster than reopening a lot | |
3787 | of files. | |
3788 | ||
3789 | We use the output_has_begun field of the input BFDs to see | |
3790 | whether we have already handled it. */ | |
c72f2fb2 | 3791 | for (sub = info->input_bfds; sub != NULL; sub = sub->link.next) |
116c20d2 NC |
3792 | sub->output_has_begun = FALSE; |
3793 | ||
3794 | /* Mark all sections which are to be included in the link. This | |
3795 | will normally be every section. We need to do this so that we | |
3796 | can identify any sections which the linker has decided to not | |
3797 | include. */ | |
3798 | for (o = abfd->sections; o != NULL; o = o->next) | |
e135f41b | 3799 | { |
8423293d | 3800 | for (p = o->map_head.link_order; p != NULL; p = p->next) |
116c20d2 NC |
3801 | if (p->type == bfd_indirect_link_order) |
3802 | p->u.indirect.section->linker_mark = TRUE; | |
e135f41b NC |
3803 | } |
3804 | ||
116c20d2 NC |
3805 | have_link_order_relocs = FALSE; |
3806 | for (o = abfd->sections; o != NULL; o = o->next) | |
3807 | { | |
8423293d | 3808 | for (p = o->map_head.link_order; |
116c20d2 NC |
3809 | p != NULL; |
3810 | p = p->next) | |
3811 | { | |
3812 | if (p->type == bfd_indirect_link_order | |
3813 | && (bfd_get_flavour (p->u.indirect.section->owner) | |
3814 | == bfd_target_aout_flavour)) | |
3815 | { | |
3816 | bfd *input_bfd; | |
e135f41b | 3817 | |
116c20d2 NC |
3818 | input_bfd = p->u.indirect.section->owner; |
3819 | if (! input_bfd->output_has_begun) | |
3820 | { | |
3821 | if (! aout_link_input_bfd (&aout_info, input_bfd)) | |
3822 | goto error_return; | |
3823 | input_bfd->output_has_begun = TRUE; | |
3824 | } | |
3825 | } | |
3826 | else if (p->type == bfd_section_reloc_link_order | |
3827 | || p->type == bfd_symbol_reloc_link_order) | |
3828 | /* These are handled below. */ | |
3829 | have_link_order_relocs = TRUE; | |
3830 | else | |
3831 | { | |
3832 | if (! _bfd_default_link_order (abfd, info, o, p)) | |
3833 | goto error_return; | |
3834 | } | |
3835 | } | |
3836 | } | |
e135f41b | 3837 | |
116c20d2 | 3838 | /* Write out any symbols that we have not already written out. */ |
7686d77d AM |
3839 | bfd_hash_traverse (&info->hash->table, |
3840 | aout_link_write_other_symbol, | |
3841 | &aout_info); | |
e135f41b | 3842 | |
116c20d2 NC |
3843 | /* Now handle any relocs we were asked to create by the linker. |
3844 | These did not come from any input file. We must do these after | |
3845 | we have written out all the symbols, so that we know the symbol | |
3846 | indices to use. */ | |
3847 | if (have_link_order_relocs) | |
e135f41b | 3848 | { |
116c20d2 | 3849 | for (o = abfd->sections; o != NULL; o = o->next) |
e135f41b | 3850 | { |
8423293d | 3851 | for (p = o->map_head.link_order; |
116c20d2 NC |
3852 | p != NULL; |
3853 | p = p->next) | |
3854 | { | |
3855 | if (p->type == bfd_section_reloc_link_order | |
3856 | || p->type == bfd_symbol_reloc_link_order) | |
3857 | { | |
3858 | if (! aout_link_reloc_link_order (&aout_info, o, p)) | |
3859 | goto error_return; | |
3860 | } | |
3861 | } | |
e135f41b NC |
3862 | } |
3863 | } | |
3864 | ||
116c20d2 NC |
3865 | if (aout_info.contents != NULL) |
3866 | { | |
3867 | free (aout_info.contents); | |
3868 | aout_info.contents = NULL; | |
3869 | } | |
3870 | if (aout_info.relocs != NULL) | |
3871 | { | |
3872 | free (aout_info.relocs); | |
3873 | aout_info.relocs = NULL; | |
3874 | } | |
3875 | if (aout_info.symbol_map != NULL) | |
3876 | { | |
3877 | free (aout_info.symbol_map); | |
3878 | aout_info.symbol_map = NULL; | |
3879 | } | |
3880 | if (aout_info.output_syms != NULL) | |
3881 | { | |
3882 | free (aout_info.output_syms); | |
3883 | aout_info.output_syms = NULL; | |
3884 | } | |
3885 | if (includes_hash_initialized) | |
3886 | { | |
3887 | bfd_hash_table_free (&aout_info.includes.root); | |
3888 | includes_hash_initialized = FALSE; | |
3889 | } | |
e135f41b | 3890 | |
116c20d2 NC |
3891 | /* Finish up any dynamic linking we may be doing. */ |
3892 | if (aout_backend_info (abfd)->finish_dynamic_link != NULL) | |
3893 | { | |
3894 | if (! (*aout_backend_info (abfd)->finish_dynamic_link) (abfd, info)) | |
3895 | goto error_return; | |
3896 | } | |
e135f41b | 3897 | |
116c20d2 NC |
3898 | /* Update the header information. */ |
3899 | abfd->symcount = obj_aout_external_sym_count (abfd); | |
3900 | exec_hdr (abfd)->a_syms = abfd->symcount * EXTERNAL_NLIST_SIZE; | |
3901 | obj_str_filepos (abfd) = obj_sym_filepos (abfd) + exec_hdr (abfd)->a_syms; | |
3902 | obj_textsec (abfd)->reloc_count = | |
3903 | exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd); | |
3904 | obj_datasec (abfd)->reloc_count = | |
3905 | exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd); | |
3906 | ||
3907 | /* Write out the string table, unless there are no symbols. */ | |
3908 | if (abfd->symcount > 0) | |
e135f41b | 3909 | { |
116c20d2 NC |
3910 | if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0 |
3911 | || ! emit_stringtab (abfd, aout_info.strtab)) | |
3912 | goto error_return; | |
3913 | } | |
3914 | else if (obj_textsec (abfd)->reloc_count == 0 | |
3915 | && obj_datasec (abfd)->reloc_count == 0) | |
3916 | { | |
3917 | bfd_byte b; | |
e135f41b | 3918 | |
116c20d2 NC |
3919 | b = 0; |
3920 | if (bfd_seek (abfd, | |
3921 | (file_ptr) (obj_datasec (abfd)->filepos | |
3922 | + exec_hdr (abfd)->a_data | |
3923 | - 1), | |
3924 | SEEK_SET) != 0 | |
3925 | || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1) | |
3926 | goto error_return; | |
e135f41b NC |
3927 | } |
3928 | ||
b34976b6 | 3929 | return TRUE; |
e135f41b | 3930 | |
116c20d2 NC |
3931 | error_return: |
3932 | if (aout_info.contents != NULL) | |
3933 | free (aout_info.contents); | |
3934 | if (aout_info.relocs != NULL) | |
3935 | free (aout_info.relocs); | |
3936 | if (aout_info.symbol_map != NULL) | |
3937 | free (aout_info.symbol_map); | |
3938 | if (aout_info.output_syms != NULL) | |
3939 | free (aout_info.output_syms); | |
3940 | if (includes_hash_initialized) | |
3941 | bfd_hash_table_free (&aout_info.includes.root); | |
3942 | return FALSE; | |
e135f41b NC |
3943 | } |
3944 | ||
116c20d2 NC |
3945 | /* Adjust and write out the symbols for an a.out file. Set the new |
3946 | symbol indices into a symbol_map. */ | |
3947 | ||
b34976b6 | 3948 | static bfd_boolean |
57402f1e | 3949 | aout_link_write_symbols (struct aout_final_link_info *flaginfo, bfd *input_bfd) |
e135f41b | 3950 | { |
e135f41b | 3951 | bfd *output_bfd; |
116c20d2 | 3952 | bfd_size_type sym_count; |
e135f41b | 3953 | char *strings; |
116c20d2 NC |
3954 | enum bfd_link_strip strip; |
3955 | enum bfd_link_discard discard; | |
3956 | struct external_nlist *outsym; | |
3957 | bfd_size_type strtab_index; | |
3958 | struct external_nlist *sym; | |
3959 | struct external_nlist *sym_end; | |
3960 | struct aout_link_hash_entry **sym_hash; | |
e135f41b | 3961 | int *symbol_map; |
116c20d2 NC |
3962 | bfd_boolean pass; |
3963 | bfd_boolean skip_next; | |
e135f41b | 3964 | |
57402f1e | 3965 | output_bfd = flaginfo->output_bfd; |
116c20d2 | 3966 | sym_count = obj_aout_external_sym_count (input_bfd); |
e135f41b | 3967 | strings = obj_aout_external_strings (input_bfd); |
57402f1e NC |
3968 | strip = flaginfo->info->strip; |
3969 | discard = flaginfo->info->discard; | |
3970 | outsym = flaginfo->output_syms; | |
e135f41b | 3971 | |
116c20d2 NC |
3972 | /* First write out a symbol for this object file, unless we are |
3973 | discarding such symbols. */ | |
3974 | if (strip != strip_all | |
3975 | && (strip != strip_some | |
57402f1e | 3976 | || bfd_hash_lookup (flaginfo->info->keep_hash, input_bfd->filename, |
116c20d2 NC |
3977 | FALSE, FALSE) != NULL) |
3978 | && discard != discard_all) | |
3979 | { | |
3980 | H_PUT_8 (output_bfd, N_TEXT, outsym->e_type); | |
57402f1e | 3981 | strtab_index = add_to_stringtab (output_bfd, flaginfo->strtab, |
116c20d2 NC |
3982 | input_bfd->filename, FALSE); |
3983 | if (strtab_index == (bfd_size_type) -1) | |
3984 | return FALSE; | |
3985 | PUT_WORD (output_bfd, strtab_index, outsym->e_strx); | |
3986 | PUT_WORD (output_bfd, | |
fd361982 | 3987 | (bfd_section_vma (obj_textsec (input_bfd)->output_section) |
116c20d2 NC |
3988 | + obj_textsec (input_bfd)->output_offset), |
3989 | outsym->e_value); | |
3990 | ++obj_aout_external_sym_count (output_bfd); | |
3991 | ++outsym; | |
3992 | } | |
3993 | ||
3994 | pass = FALSE; | |
3995 | skip_next = FALSE; | |
3996 | sym = obj_aout_external_syms (input_bfd); | |
3997 | sym_end = sym + sym_count; | |
3998 | sym_hash = obj_aout_sym_hashes (input_bfd); | |
57402f1e | 3999 | symbol_map = flaginfo->symbol_map; |
116c20d2 NC |
4000 | memset (symbol_map, 0, (size_t) sym_count * sizeof *symbol_map); |
4001 | for (; sym < sym_end; sym++, sym_hash++, symbol_map++) | |
e135f41b | 4002 | { |
116c20d2 NC |
4003 | const char *name; |
4004 | int type; | |
4005 | struct aout_link_hash_entry *h; | |
4006 | bfd_boolean skip; | |
4007 | asection *symsec; | |
4008 | bfd_vma val = 0; | |
4009 | bfd_boolean copy; | |
e135f41b | 4010 | |
116c20d2 | 4011 | /* We set *symbol_map to 0 above for all symbols. If it has |
07d6d2b8 AM |
4012 | already been set to -1 for this symbol, it means that we are |
4013 | discarding it because it appears in a duplicate header file. | |
4014 | See the N_BINCL code below. */ | |
116c20d2 | 4015 | if (*symbol_map == -1) |
e135f41b NC |
4016 | continue; |
4017 | ||
116c20d2 | 4018 | /* Initialize *symbol_map to -1, which means that the symbol was |
07d6d2b8 AM |
4019 | not copied into the output file. We will change it later if |
4020 | we do copy the symbol over. */ | |
116c20d2 | 4021 | *symbol_map = -1; |
e135f41b | 4022 | |
116c20d2 NC |
4023 | type = H_GET_8 (input_bfd, sym->e_type); |
4024 | name = strings + GET_WORD (input_bfd, sym->e_strx); | |
e135f41b | 4025 | |
116c20d2 | 4026 | h = NULL; |
e135f41b | 4027 | |
116c20d2 | 4028 | if (pass) |
e135f41b | 4029 | { |
116c20d2 NC |
4030 | /* Pass this symbol through. It is the target of an |
4031 | indirect or warning symbol. */ | |
4032 | val = GET_WORD (input_bfd, sym->e_value); | |
4033 | pass = FALSE; | |
4034 | } | |
4035 | else if (skip_next) | |
4036 | { | |
4037 | /* Skip this symbol, which is the target of an indirect | |
4038 | symbol that we have changed to no longer be an indirect | |
4039 | symbol. */ | |
4040 | skip_next = FALSE; | |
4041 | continue; | |
4042 | } | |
4043 | else | |
4044 | { | |
4045 | struct aout_link_hash_entry *hresolve; | |
e135f41b | 4046 | |
116c20d2 NC |
4047 | /* We have saved the hash table entry for this symbol, if |
4048 | there is one. Note that we could just look it up again | |
4049 | in the hash table, provided we first check that it is an | |
4050 | external symbol. */ | |
4051 | h = *sym_hash; | |
e135f41b | 4052 | |
116c20d2 | 4053 | /* Use the name from the hash table, in case the symbol was |
07d6d2b8 | 4054 | wrapped. */ |
116c20d2 NC |
4055 | if (h != NULL) |
4056 | name = h->root.root.string; | |
e135f41b | 4057 | |
116c20d2 NC |
4058 | /* If this is an indirect or warning symbol, then change |
4059 | hresolve to the base symbol. We also change *sym_hash so | |
4060 | that the relocation routines relocate against the real | |
4061 | symbol. */ | |
4062 | hresolve = h; | |
4063 | if (h != NULL | |
4064 | && (h->root.type == bfd_link_hash_indirect | |
4065 | || h->root.type == bfd_link_hash_warning)) | |
4066 | { | |
4067 | hresolve = (struct aout_link_hash_entry *) h->root.u.i.link; | |
4068 | while (hresolve->root.type == bfd_link_hash_indirect | |
4069 | || hresolve->root.type == bfd_link_hash_warning) | |
4070 | hresolve = ((struct aout_link_hash_entry *) | |
4071 | hresolve->root.u.i.link); | |
4072 | *sym_hash = hresolve; | |
4073 | } | |
e135f41b | 4074 | |
116c20d2 NC |
4075 | /* If the symbol has already been written out, skip it. */ |
4076 | if (h != NULL | |
4077 | && h->root.type != bfd_link_hash_warning | |
4078 | && h->written) | |
4079 | { | |
4080 | if ((type & N_TYPE) == N_INDR | |
4081 | || type == N_WARNING) | |
4082 | skip_next = TRUE; | |
4083 | *symbol_map = h->indx; | |
4084 | continue; | |
4085 | } | |
e135f41b | 4086 | |
116c20d2 NC |
4087 | /* See if we are stripping this symbol. */ |
4088 | skip = FALSE; | |
4089 | switch (strip) | |
4090 | { | |
4091 | case strip_none: | |
4092 | break; | |
4093 | case strip_debugger: | |
4094 | if ((type & N_STAB) != 0) | |
4095 | skip = TRUE; | |
4096 | break; | |
4097 | case strip_some: | |
57402f1e | 4098 | if (bfd_hash_lookup (flaginfo->info->keep_hash, name, FALSE, FALSE) |
116c20d2 NC |
4099 | == NULL) |
4100 | skip = TRUE; | |
4101 | break; | |
4102 | case strip_all: | |
4103 | skip = TRUE; | |
4104 | break; | |
e135f41b | 4105 | } |
116c20d2 | 4106 | if (skip) |
e135f41b | 4107 | { |
116c20d2 NC |
4108 | if (h != NULL) |
4109 | h->written = TRUE; | |
4110 | continue; | |
4111 | } | |
e135f41b | 4112 | |
116c20d2 NC |
4113 | /* Get the value of the symbol. */ |
4114 | if ((type & N_TYPE) == N_TEXT | |
4115 | || type == N_WEAKT) | |
4116 | symsec = obj_textsec (input_bfd); | |
4117 | else if ((type & N_TYPE) == N_DATA | |
4118 | || type == N_WEAKD) | |
4119 | symsec = obj_datasec (input_bfd); | |
4120 | else if ((type & N_TYPE) == N_BSS | |
4121 | || type == N_WEAKB) | |
4122 | symsec = obj_bsssec (input_bfd); | |
4123 | else if ((type & N_TYPE) == N_ABS | |
4124 | || type == N_WEAKA) | |
4125 | symsec = bfd_abs_section_ptr; | |
4126 | else if (((type & N_TYPE) == N_INDR | |
4127 | && (hresolve == NULL | |
4128 | || (hresolve->root.type != bfd_link_hash_defined | |
4129 | && hresolve->root.type != bfd_link_hash_defweak | |
4130 | && hresolve->root.type != bfd_link_hash_common))) | |
4131 | || type == N_WARNING) | |
4132 | { | |
4133 | /* Pass the next symbol through unchanged. The | |
4134 | condition above for indirect symbols is so that if | |
4135 | the indirect symbol was defined, we output it with | |
4136 | the correct definition so the debugger will | |
4137 | understand it. */ | |
4138 | pass = TRUE; | |
4139 | val = GET_WORD (input_bfd, sym->e_value); | |
4140 | symsec = NULL; | |
4141 | } | |
4142 | else if ((type & N_STAB) != 0) | |
4143 | { | |
4144 | val = GET_WORD (input_bfd, sym->e_value); | |
4145 | symsec = NULL; | |
e135f41b | 4146 | } |
116c20d2 NC |
4147 | else |
4148 | { | |
4149 | /* If we get here with an indirect symbol, it means that | |
4150 | we are outputting it with a real definition. In such | |
4151 | a case we do not want to output the next symbol, | |
4152 | which is the target of the indirection. */ | |
4153 | if ((type & N_TYPE) == N_INDR) | |
4154 | skip_next = TRUE; | |
e135f41b | 4155 | |
116c20d2 | 4156 | symsec = NULL; |
e135f41b | 4157 | |
116c20d2 NC |
4158 | /* We need to get the value from the hash table. We use |
4159 | hresolve so that if we have defined an indirect | |
4160 | symbol we output the final definition. */ | |
4161 | if (h == NULL) | |
4162 | { | |
4163 | switch (type & N_TYPE) | |
4164 | { | |
4165 | case N_SETT: | |
4166 | symsec = obj_textsec (input_bfd); | |
4167 | break; | |
4168 | case N_SETD: | |
4169 | symsec = obj_datasec (input_bfd); | |
4170 | break; | |
4171 | case N_SETB: | |
4172 | symsec = obj_bsssec (input_bfd); | |
4173 | break; | |
4174 | case N_SETA: | |
4175 | symsec = bfd_abs_section_ptr; | |
4176 | break; | |
4177 | default: | |
4178 | val = 0; | |
4179 | break; | |
4180 | } | |
4181 | } | |
4182 | else if (hresolve->root.type == bfd_link_hash_defined | |
4183 | || hresolve->root.type == bfd_link_hash_defweak) | |
4184 | { | |
4185 | asection *input_section; | |
4186 | asection *output_section; | |
e135f41b | 4187 | |
116c20d2 NC |
4188 | /* This case usually means a common symbol which was |
4189 | turned into a defined symbol. */ | |
4190 | input_section = hresolve->root.u.def.section; | |
4191 | output_section = input_section->output_section; | |
4192 | BFD_ASSERT (bfd_is_abs_section (output_section) | |
4193 | || output_section->owner == output_bfd); | |
4194 | val = (hresolve->root.u.def.value | |
fd361982 | 4195 | + bfd_section_vma (output_section) |
116c20d2 | 4196 | + input_section->output_offset); |
e135f41b | 4197 | |
116c20d2 NC |
4198 | /* Get the correct type based on the section. If |
4199 | this is a constructed set, force it to be | |
4200 | globally visible. */ | |
4201 | if (type == N_SETT | |
4202 | || type == N_SETD | |
4203 | || type == N_SETB | |
4204 | || type == N_SETA) | |
4205 | type |= N_EXT; | |
e135f41b | 4206 | |
116c20d2 | 4207 | type &=~ N_TYPE; |
e135f41b | 4208 | |
116c20d2 NC |
4209 | if (output_section == obj_textsec (output_bfd)) |
4210 | type |= (hresolve->root.type == bfd_link_hash_defined | |
4211 | ? N_TEXT | |
4212 | : N_WEAKT); | |
4213 | else if (output_section == obj_datasec (output_bfd)) | |
4214 | type |= (hresolve->root.type == bfd_link_hash_defined | |
4215 | ? N_DATA | |
4216 | : N_WEAKD); | |
4217 | else if (output_section == obj_bsssec (output_bfd)) | |
4218 | type |= (hresolve->root.type == bfd_link_hash_defined | |
4219 | ? N_BSS | |
4220 | : N_WEAKB); | |
4221 | else | |
4222 | type |= (hresolve->root.type == bfd_link_hash_defined | |
4223 | ? N_ABS | |
4224 | : N_WEAKA); | |
e135f41b | 4225 | } |
116c20d2 NC |
4226 | else if (hresolve->root.type == bfd_link_hash_common) |
4227 | val = hresolve->root.u.c.size; | |
4228 | else if (hresolve->root.type == bfd_link_hash_undefweak) | |
e135f41b | 4229 | { |
116c20d2 NC |
4230 | val = 0; |
4231 | type = N_WEAKU; | |
e135f41b | 4232 | } |
116c20d2 NC |
4233 | else |
4234 | val = 0; | |
e135f41b | 4235 | } |
116c20d2 NC |
4236 | if (symsec != NULL) |
4237 | val = (symsec->output_section->vma | |
4238 | + symsec->output_offset | |
4239 | + (GET_WORD (input_bfd, sym->e_value) | |
4240 | - symsec->vma)); | |
e135f41b | 4241 | |
116c20d2 NC |
4242 | /* If this is a global symbol set the written flag, and if |
4243 | it is a local symbol see if we should discard it. */ | |
4244 | if (h != NULL) | |
e135f41b | 4245 | { |
116c20d2 NC |
4246 | h->written = TRUE; |
4247 | h->indx = obj_aout_external_sym_count (output_bfd); | |
e135f41b | 4248 | } |
116c20d2 NC |
4249 | else if ((type & N_TYPE) != N_SETT |
4250 | && (type & N_TYPE) != N_SETD | |
4251 | && (type & N_TYPE) != N_SETB | |
4252 | && (type & N_TYPE) != N_SETA) | |
e135f41b | 4253 | { |
116c20d2 NC |
4254 | switch (discard) |
4255 | { | |
4256 | case discard_none: | |
4257 | case discard_sec_merge: | |
4258 | break; | |
4259 | case discard_l: | |
4260 | if ((type & N_STAB) == 0 | |
4261 | && bfd_is_local_label_name (input_bfd, name)) | |
4262 | skip = TRUE; | |
4263 | break; | |
4264 | case discard_all: | |
4265 | skip = TRUE; | |
4266 | break; | |
4267 | } | |
4268 | if (skip) | |
4269 | { | |
4270 | pass = FALSE; | |
4271 | continue; | |
4272 | } | |
e135f41b NC |
4273 | } |
4274 | ||
116c20d2 NC |
4275 | /* An N_BINCL symbol indicates the start of the stabs |
4276 | entries for a header file. We need to scan ahead to the | |
4277 | next N_EINCL symbol, ignoring nesting, adding up all the | |
4278 | characters in the symbol names, not including the file | |
4279 | numbers in types (the first number after an open | |
4280 | parenthesis). */ | |
4281 | if (type == N_BINCL) | |
e135f41b | 4282 | { |
116c20d2 NC |
4283 | struct external_nlist *incl_sym; |
4284 | int nest; | |
4285 | struct aout_link_includes_entry *incl_entry; | |
4286 | struct aout_link_includes_totals *t; | |
e135f41b | 4287 | |
116c20d2 NC |
4288 | val = 0; |
4289 | nest = 0; | |
4290 | for (incl_sym = sym + 1; incl_sym < sym_end; incl_sym++) | |
4291 | { | |
4292 | int incl_type; | |
e135f41b | 4293 | |
116c20d2 NC |
4294 | incl_type = H_GET_8 (input_bfd, incl_sym->e_type); |
4295 | if (incl_type == N_EINCL) | |
4296 | { | |
4297 | if (nest == 0) | |
4298 | break; | |
4299 | --nest; | |
4300 | } | |
4301 | else if (incl_type == N_BINCL) | |
4302 | ++nest; | |
4303 | else if (nest == 0) | |
4304 | { | |
4305 | const char *s; | |
e135f41b | 4306 | |
116c20d2 NC |
4307 | s = strings + GET_WORD (input_bfd, incl_sym->e_strx); |
4308 | for (; *s != '\0'; s++) | |
4309 | { | |
4310 | val += *s; | |
4311 | if (*s == '(') | |
4312 | { | |
4313 | /* Skip the file number. */ | |
4314 | ++s; | |
4315 | while (ISDIGIT (*s)) | |
4316 | ++s; | |
4317 | --s; | |
4318 | } | |
4319 | } | |
4320 | } | |
4321 | } | |
e135f41b | 4322 | |
116c20d2 | 4323 | /* If we have already included a header file with the |
07d6d2b8 AM |
4324 | same value, then replace this one with an N_EXCL |
4325 | symbol. */ | |
57402f1e NC |
4326 | copy = ! flaginfo->info->keep_memory; |
4327 | incl_entry = aout_link_includes_lookup (&flaginfo->includes, | |
116c20d2 NC |
4328 | name, TRUE, copy); |
4329 | if (incl_entry == NULL) | |
4330 | return FALSE; | |
4331 | for (t = incl_entry->totals; t != NULL; t = t->next) | |
4332 | if (t->total == val) | |
4333 | break; | |
4334 | if (t == NULL) | |
4335 | { | |
4336 | /* This is the first time we have seen this header | |
07d6d2b8 | 4337 | file with this set of stabs strings. */ |
57402f1e | 4338 | t = bfd_hash_allocate (&flaginfo->includes.root, |
116c20d2 NC |
4339 | sizeof *t); |
4340 | if (t == NULL) | |
4341 | return FALSE; | |
4342 | t->total = val; | |
4343 | t->next = incl_entry->totals; | |
4344 | incl_entry->totals = t; | |
4345 | } | |
4346 | else | |
4347 | { | |
4348 | int *incl_map; | |
e135f41b | 4349 | |
116c20d2 | 4350 | /* This is a duplicate header file. We must change |
07d6d2b8 AM |
4351 | it to be an N_EXCL entry, and mark all the |
4352 | included symbols to prevent outputting them. */ | |
116c20d2 | 4353 | type = N_EXCL; |
e135f41b | 4354 | |
116c20d2 NC |
4355 | nest = 0; |
4356 | for (incl_sym = sym + 1, incl_map = symbol_map + 1; | |
4357 | incl_sym < sym_end; | |
4358 | incl_sym++, incl_map++) | |
4359 | { | |
4360 | int incl_type; | |
e135f41b | 4361 | |
116c20d2 NC |
4362 | incl_type = H_GET_8 (input_bfd, incl_sym->e_type); |
4363 | if (incl_type == N_EINCL) | |
4364 | { | |
4365 | if (nest == 0) | |
4366 | { | |
4367 | *incl_map = -1; | |
4368 | break; | |
4369 | } | |
4370 | --nest; | |
4371 | } | |
4372 | else if (incl_type == N_BINCL) | |
4373 | ++nest; | |
4374 | else if (nest == 0) | |
4375 | *incl_map = -1; | |
4376 | } | |
4377 | } | |
4378 | } | |
e135f41b | 4379 | } |
e135f41b | 4380 | |
116c20d2 NC |
4381 | /* Copy this symbol into the list of symbols we are going to |
4382 | write out. */ | |
4383 | H_PUT_8 (output_bfd, type, outsym->e_type); | |
4384 | copy = FALSE; | |
57402f1e | 4385 | if (! flaginfo->info->keep_memory) |
e135f41b | 4386 | { |
116c20d2 NC |
4387 | /* name points into a string table which we are going to |
4388 | free. If there is a hash table entry, use that string. | |
4389 | Otherwise, copy name into memory. */ | |
4390 | if (h != NULL) | |
4391 | name = h->root.root.string; | |
4392 | else | |
4393 | copy = TRUE; | |
e135f41b | 4394 | } |
57402f1e | 4395 | strtab_index = add_to_stringtab (output_bfd, flaginfo->strtab, |
116c20d2 NC |
4396 | name, copy); |
4397 | if (strtab_index == (bfd_size_type) -1) | |
4398 | return FALSE; | |
4399 | PUT_WORD (output_bfd, strtab_index, outsym->e_strx); | |
4400 | PUT_WORD (output_bfd, val, outsym->e_value); | |
4401 | *symbol_map = obj_aout_external_sym_count (output_bfd); | |
4402 | ++obj_aout_external_sym_count (output_bfd); | |
4403 | ++outsym; | |
e135f41b NC |
4404 | } |
4405 | ||
116c20d2 | 4406 | /* Write out the output symbols we have just constructed. */ |
57402f1e | 4407 | if (outsym > flaginfo->output_syms) |
e135f41b NC |
4408 | { |
4409 | bfd_size_type size; | |
e135f41b | 4410 | |
57402f1e | 4411 | if (bfd_seek (output_bfd, flaginfo->symoff, SEEK_SET) != 0) |
b34976b6 | 4412 | return FALSE; |
57402f1e | 4413 | size = outsym - flaginfo->output_syms; |
116c20d2 | 4414 | size *= EXTERNAL_NLIST_SIZE; |
57402f1e | 4415 | if (bfd_bwrite ((void *) flaginfo->output_syms, size, output_bfd) != size) |
b34976b6 | 4416 | return FALSE; |
57402f1e | 4417 | flaginfo->symoff += size; |
e135f41b NC |
4418 | } |
4419 | ||
b34976b6 | 4420 | return TRUE; |
e135f41b | 4421 | } |
116c20d2 NC |
4422 | |
4423 | /* Write out a symbol that was not associated with an a.out input | |
4424 | object. */ | |
e135f41b | 4425 | |
edeb6e24 AM |
4426 | static bfd_vma |
4427 | bfd_getp32 (const void *p) | |
e135f41b | 4428 | { |
edeb6e24 AM |
4429 | const bfd_byte *addr = p; |
4430 | unsigned long v; | |
116c20d2 | 4431 | |
edeb6e24 AM |
4432 | v = (unsigned long) addr[1] << 24; |
4433 | v |= (unsigned long) addr[0] << 16; | |
4434 | v |= (unsigned long) addr[3] << 8; | |
4435 | v |= (unsigned long) addr[2]; | |
4436 | return v; | |
e135f41b NC |
4437 | } |
4438 | ||
4439 | #define COERCE32(x) (((bfd_signed_vma) (x) ^ 0x80000000) - 0x80000000) | |
4440 | ||
edeb6e24 AM |
4441 | static bfd_signed_vma |
4442 | bfd_getp_signed_32 (const void *p) | |
e135f41b | 4443 | { |
edeb6e24 AM |
4444 | const bfd_byte *addr = p; |
4445 | unsigned long v; | |
116c20d2 | 4446 | |
edeb6e24 AM |
4447 | v = (unsigned long) addr[1] << 24; |
4448 | v |= (unsigned long) addr[0] << 16; | |
4449 | v |= (unsigned long) addr[3] << 8; | |
4450 | v |= (unsigned long) addr[2]; | |
4451 | return COERCE32 (v); | |
e135f41b NC |
4452 | } |
4453 | ||
edeb6e24 AM |
4454 | static void |
4455 | bfd_putp32 (bfd_vma data, void *p) | |
e135f41b | 4456 | { |
edeb6e24 | 4457 | bfd_byte *addr = p; |
116c20d2 | 4458 | |
edeb6e24 AM |
4459 | addr[0] = (data >> 16) & 0xff; |
4460 | addr[1] = (data >> 24) & 0xff; | |
4461 | addr[2] = (data >> 0) & 0xff; | |
4462 | addr[3] = (data >> 8) & 0xff; | |
e135f41b | 4463 | } |
116c20d2 NC |
4464 | |
4465 | const bfd_target MY (vec) = | |
4466 | { | |
4467 | TARGETNAME, /* Name. */ | |
4468 | bfd_target_aout_flavour, | |
4469 | BFD_ENDIAN_LITTLE, /* Target byte order (little). */ | |
4470 | BFD_ENDIAN_LITTLE, /* Target headers byte order (little). */ | |
4471 | (HAS_RELOC | EXEC_P | /* Object flags. */ | |
4472 | HAS_LINENO | HAS_DEBUG | | |
4473 | HAS_SYMS | HAS_LOCALS | WP_TEXT), | |
4474 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA), | |
4475 | MY_symbol_leading_char, | |
4476 | AR_PAD_CHAR, /* AR_pad_char. */ | |
4477 | 15, /* AR_max_namelen. */ | |
0aabe54e | 4478 | 0, /* match priority. */ |
116c20d2 NC |
4479 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, |
4480 | bfd_getp32, bfd_getp_signed_32, bfd_putp32, | |
4481 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Data. */ | |
4482 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, | |
4483 | bfd_getp32, bfd_getp_signed_32, bfd_putp32, | |
4484 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Headers. */ | |
d00dd7dc AM |
4485 | { /* bfd_check_format. */ |
4486 | _bfd_dummy_target, | |
4487 | MY_object_p, | |
4488 | bfd_generic_archive_p, | |
4489 | MY_core_file_p | |
4490 | }, | |
4491 | { /* bfd_set_format. */ | |
4492 | _bfd_bool_bfd_false_error, | |
4493 | MY_mkobject, | |
4494 | _bfd_generic_mkarchive, | |
4495 | _bfd_bool_bfd_false_error | |
4496 | }, | |
4497 | { /* bfd_write_contents. */ | |
4498 | _bfd_bool_bfd_false_error, | |
4499 | MY_write_object_contents, | |
4500 | _bfd_write_archive_contents, | |
4501 | _bfd_bool_bfd_false_error | |
4502 | }, | |
4503 | ||
4504 | BFD_JUMP_TABLE_GENERIC (MY), | |
4505 | BFD_JUMP_TABLE_COPY (MY), | |
4506 | BFD_JUMP_TABLE_CORE (MY), | |
4507 | BFD_JUMP_TABLE_ARCHIVE (MY), | |
4508 | BFD_JUMP_TABLE_SYMBOLS (MY), | |
4509 | BFD_JUMP_TABLE_RELOCS (MY), | |
4510 | BFD_JUMP_TABLE_WRITE (MY), | |
4511 | BFD_JUMP_TABLE_LINK (MY), | |
4512 | BFD_JUMP_TABLE_DYNAMIC (MY), | |
116c20d2 NC |
4513 | |
4514 | /* Alternative_target. */ | |
4515 | NULL, | |
4516 | ||
4517 | (void *) MY_backend_data | |
4518 | }; |