Commit | Line | Data |
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e135f41b | 1 | /* BFD back-end for PDP-11 a.out binaries. |
219d1afa | 2 | Copyright (C) 2001-2018 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 | ||
11b8aeb8 | 40 | #define TARGET_PAGE_SIZE 256 |
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" |
e135f41b NC |
69 | #include "bfd.h" |
70 | ||
71 | #define external_exec pdp11_external_exec | |
72 | struct pdp11_external_exec | |
116c20d2 NC |
73 | { |
74 | bfd_byte e_info[2]; /* Magic number. */ | |
75 | bfd_byte e_text[2]; /* Length of text section in bytes. */ | |
76 | bfd_byte e_data[2]; /* Length of data section in bytes. */ | |
77 | bfd_byte e_bss[2]; /* Length of bss area in bytes. */ | |
78 | bfd_byte e_syms[2]; /* Length of symbol table in bytes. */ | |
79 | bfd_byte e_entry[2]; /* Start address. */ | |
80 | bfd_byte e_unused[2]; /* Not used. */ | |
81 | bfd_byte e_flag[2]; /* Relocation info stripped. */ | |
07d6d2b8 | 82 | bfd_byte e_relocatable; /* Ugly hack. */ |
116c20d2 | 83 | }; |
e135f41b NC |
84 | |
85 | #define EXEC_BYTES_SIZE (8 * 2) | |
86 | ||
87 | #define A_MAGIC1 OMAGIC | |
88 | #define OMAGIC 0407 /* ...object file or impure executable. */ | |
89 | #define A_MAGIC2 NMAGIC | |
116c20d2 NC |
90 | #define NMAGIC 0410 /* Pure executable. */ |
91 | #define ZMAGIC 0413 /* Demand-paged executable. */ | |
92 | #define A_MAGIC3 0411 /* Separated I&D. */ | |
93 | #define A_MAGIC4 0405 /* Overlay. */ | |
94 | #define A_MAGIC5 0430 /* Auto-overlay (nonseparate). */ | |
95 | #define A_MAGIC6 0431 /* Auto-overlay (separate). */ | |
e135f41b NC |
96 | #define QMAGIC 0 |
97 | #define BMAGIC 0 | |
98 | ||
99 | #define A_FLAG_RELOC_STRIPPED 0x0001 | |
100 | ||
101 | #define external_nlist pdp11_external_nlist | |
102 | struct pdp11_external_nlist | |
116c20d2 NC |
103 | { |
104 | bfd_byte e_unused[2]; /* Unused. */ | |
105 | bfd_byte e_strx[2]; /* Index into string table of name. */ | |
106 | bfd_byte e_type[1]; /* Type of symbol. */ | |
107 | bfd_byte e_ovly[1]; /* Overlay number. */ | |
108 | bfd_byte e_value[2]; /* Value of symbol. */ | |
109 | }; | |
e135f41b NC |
110 | |
111 | #define EXTERNAL_NLIST_SIZE 8 | |
112 | ||
113 | #define N_TXTOFF(x) (EXEC_BYTES_SIZE) | |
bbb1afc8 AM |
114 | #define N_DATOFF(x) (N_TXTOFF(x) + (x)->a_text) |
115 | #define N_TRELOFF(x) (N_DATOFF(x) + (x)->a_data) | |
116 | #define N_DRELOFF(x) (N_TRELOFF(x) + (x)->a_trsize) | |
117 | #define N_SYMOFF(x) (N_DRELOFF(x) + (x)->a_drsize) | |
118 | #define N_STROFF(x) (N_SYMOFF(x) + (x)->a_syms) | |
e135f41b NC |
119 | |
120 | #define WRITE_HEADERS(abfd, execp) pdp11_aout_write_headers (abfd, execp) | |
121 | ||
e135f41b NC |
122 | #include "libbfd.h" |
123 | #include "libaout.h" | |
124 | ||
125 | #define SWAP_MAGIC(ext) bfd_getl16 (ext) | |
126 | ||
127 | #define MY_entry_is_text_address 1 | |
128 | ||
129 | #define MY_write_object_contents MY(write_object_contents) | |
116c20d2 | 130 | static bfd_boolean MY(write_object_contents) (bfd *); |
e135f41b NC |
131 | #define MY_text_includes_header 1 |
132 | ||
e135f41b NC |
133 | #define MY_BFD_TARGET |
134 | ||
135 | #include "aout-target.h" | |
136 | ||
116c20d2 | 137 | /* Start of modified aoutx.h. */ |
e135f41b NC |
138 | #define KEEPIT udata.i |
139 | ||
116c20d2 | 140 | #include <string.h> /* For strchr and friends. */ |
e135f41b NC |
141 | #include "bfd.h" |
142 | #include "sysdep.h" | |
3882b010 | 143 | #include "safe-ctype.h" |
e135f41b NC |
144 | #include "bfdlink.h" |
145 | ||
146 | #include "libaout.h" | |
e135f41b NC |
147 | #include "aout/aout64.h" |
148 | #include "aout/stab_gnu.h" | |
149 | #include "aout/ar.h" | |
150 | ||
151 | #undef N_TYPE | |
152 | #undef N_UNDF | |
153 | #undef N_ABS | |
154 | #undef N_TEXT | |
155 | #undef N_DATA | |
156 | #undef N_BSS | |
157 | #undef N_REG | |
158 | #undef N_FN | |
159 | #undef N_EXT | |
116c20d2 NC |
160 | #define N_TYPE 0x1f /* Type mask. */ |
161 | #define N_UNDF 0x00 /* Undefined. */ | |
162 | #define N_ABS 0x01 /* Absolute. */ | |
163 | #define N_TEXT 0x02 /* Text segment. */ | |
164 | #define N_DATA 0x03 /* Data segment. */ | |
165 | #define N_BSS 0x04 /* Bss segment. */ | |
166 | #define N_REG 0x14 /* Register symbol. */ | |
167 | #define N_FN 0x1f /* File name. */ | |
168 | #define N_EXT 0x20 /* External flag. */ | |
e135f41b NC |
169 | |
170 | #define RELOC_SIZE 2 | |
171 | ||
116c20d2 NC |
172 | #define RELFLG 0x0001 /* PC-relative flag. */ |
173 | #define RTYPE 0x000e /* Type mask. */ | |
174 | #define RIDXMASK 0xfff0 /* Index mask. */ | |
e135f41b | 175 | |
116c20d2 NC |
176 | #define RABS 0x00 /* Absolute. */ |
177 | #define RTEXT 0x02 /* Text. */ | |
178 | #define RDATA 0x04 /* Data. */ | |
179 | #define RBSS 0x06 /* Bss. */ | |
180 | #define REXT 0x08 /* External. */ | |
e135f41b NC |
181 | |
182 | #define RINDEX(x) (((x) & 0xfff0) >> 4) | |
183 | ||
e135f41b NC |
184 | #ifndef MY_final_link_relocate |
185 | #define MY_final_link_relocate _bfd_final_link_relocate | |
186 | #endif | |
187 | ||
188 | #ifndef MY_relocate_contents | |
189 | #define MY_relocate_contents _bfd_relocate_contents | |
190 | #endif | |
191 | ||
116c20d2 NC |
192 | /* A hash table used for header files with N_BINCL entries. */ |
193 | ||
194 | struct aout_link_includes_table | |
195 | { | |
196 | struct bfd_hash_table root; | |
197 | }; | |
198 | ||
199 | /* A linked list of totals that we have found for a particular header | |
200 | file. */ | |
201 | ||
202 | struct aout_link_includes_totals | |
203 | { | |
204 | struct aout_link_includes_totals *next; | |
205 | bfd_vma total; | |
206 | }; | |
207 | ||
208 | /* An entry in the header file hash table. */ | |
209 | ||
210 | struct aout_link_includes_entry | |
211 | { | |
212 | struct bfd_hash_entry root; | |
213 | /* List of totals we have found for this file. */ | |
214 | struct aout_link_includes_totals *totals; | |
215 | }; | |
216 | ||
217 | /* During the final link step we need to pass around a bunch of | |
218 | information, so we do it in an instance of this structure. */ | |
219 | ||
220 | struct aout_final_link_info | |
221 | { | |
222 | /* General link information. */ | |
223 | struct bfd_link_info *info; | |
224 | /* Output bfd. */ | |
225 | bfd *output_bfd; | |
226 | /* Reloc file positions. */ | |
227 | file_ptr treloff, dreloff; | |
228 | /* File position of symbols. */ | |
229 | file_ptr symoff; | |
230 | /* String table. */ | |
231 | struct bfd_strtab_hash *strtab; | |
232 | /* Header file hash table. */ | |
233 | struct aout_link_includes_table includes; | |
234 | /* A buffer large enough to hold the contents of any section. */ | |
235 | bfd_byte *contents; | |
236 | /* A buffer large enough to hold the relocs of any section. */ | |
237 | void * relocs; | |
238 | /* A buffer large enough to hold the symbol map of any input BFD. */ | |
239 | int *symbol_map; | |
240 | /* A buffer large enough to hold output symbols of any input BFD. */ | |
241 | struct external_nlist *output_syms; | |
242 | }; | |
243 | ||
e135f41b NC |
244 | reloc_howto_type howto_table_pdp11[] = |
245 | { | |
07d6d2b8 | 246 | /* type rs size bsz pcrel bitpos ovrf sf name part_inpl readmask setmask pcdone */ |
b34976b6 AM |
247 | HOWTO( 0, 0, 1, 16, FALSE, 0, complain_overflow_signed,0,"16", TRUE, 0x0000ffff,0x0000ffff, FALSE), |
248 | HOWTO( 1, 0, 1, 16, TRUE, 0, complain_overflow_signed,0,"DISP16", TRUE, 0x0000ffff,0x0000ffff, FALSE), | |
e135f41b NC |
249 | }; |
250 | ||
251 | #define TABLE_SIZE(TABLE) (sizeof(TABLE)/sizeof(TABLE[0])) | |
252 | ||
116c20d2 | 253 | |
13e570f8 | 254 | static bfd_boolean aout_link_check_archive_element (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, const char *, bfd_boolean *); |
07d6d2b8 AM |
255 | static bfd_boolean aout_link_add_object_symbols (bfd *, struct bfd_link_info *); |
256 | static bfd_boolean aout_link_add_symbols (bfd *, struct bfd_link_info *); | |
257 | static bfd_boolean aout_link_write_symbols (struct aout_final_link_info *, bfd *); | |
116c20d2 NC |
258 | |
259 | ||
e135f41b | 260 | reloc_howto_type * |
116c20d2 NC |
261 | NAME (aout, reloc_type_lookup) (bfd * abfd ATTRIBUTE_UNUSED, |
262 | bfd_reloc_code_real_type code) | |
e135f41b NC |
263 | { |
264 | switch (code) | |
265 | { | |
266 | case BFD_RELOC_16: | |
267 | return &howto_table_pdp11[0]; | |
268 | case BFD_RELOC_16_PCREL: | |
269 | return &howto_table_pdp11[1]; | |
270 | default: | |
116c20d2 | 271 | return NULL; |
e135f41b NC |
272 | } |
273 | } | |
274 | ||
157090f7 AM |
275 | reloc_howto_type * |
276 | NAME (aout, reloc_name_lookup) (bfd *abfd ATTRIBUTE_UNUSED, | |
277 | const char *r_name) | |
278 | { | |
279 | unsigned int i; | |
280 | ||
281 | for (i = 0; | |
282 | i < sizeof (howto_table_pdp11) / sizeof (howto_table_pdp11[0]); | |
283 | i++) | |
284 | if (howto_table_pdp11[i].name != NULL | |
285 | && strcasecmp (howto_table_pdp11[i].name, r_name) == 0) | |
286 | return &howto_table_pdp11[i]; | |
287 | ||
288 | return NULL; | |
289 | } | |
290 | ||
e135f41b | 291 | static int |
116c20d2 | 292 | pdp11_aout_write_headers (bfd *abfd, struct internal_exec *execp) |
e135f41b NC |
293 | { |
294 | struct external_exec exec_bytes; | |
e135f41b NC |
295 | |
296 | if (adata(abfd).magic == undecided_magic) | |
3a8c4a5b | 297 | NAME (aout, adjust_sizes_and_vmas) (abfd); |
e135f41b NC |
298 | |
299 | execp->a_syms = bfd_get_symcount (abfd) * EXTERNAL_NLIST_SIZE; | |
300 | execp->a_entry = bfd_get_start_address (abfd); | |
301 | ||
116c20d2 NC |
302 | if (obj_textsec (abfd)->reloc_count > 0 |
303 | || obj_datasec (abfd)->reloc_count > 0) | |
e135f41b NC |
304 | { |
305 | execp->a_trsize = execp->a_text; | |
306 | execp->a_drsize = execp->a_data; | |
307 | } | |
308 | else | |
309 | { | |
310 | execp->a_trsize = 0; | |
311 | execp->a_drsize = 0; | |
312 | } | |
313 | ||
116c20d2 | 314 | NAME (aout, swap_exec_header_out) (abfd, execp, & exec_bytes); |
e135f41b NC |
315 | |
316 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) | |
b34976b6 | 317 | return FALSE; |
e135f41b | 318 | |
116c20d2 | 319 | if (bfd_bwrite ((void *) &exec_bytes, (bfd_size_type) EXEC_BYTES_SIZE, abfd) |
e135f41b | 320 | != EXEC_BYTES_SIZE) |
b34976b6 | 321 | return FALSE; |
e135f41b | 322 | |
116c20d2 NC |
323 | /* Now write out reloc info, followed by syms and strings. */ |
324 | if (bfd_get_outsymbols (abfd) != NULL | |
e135f41b NC |
325 | && bfd_get_symcount (abfd) != 0) |
326 | { | |
bbb1afc8 | 327 | if (bfd_seek (abfd, (file_ptr) (N_SYMOFF (execp)), SEEK_SET) != 0) |
b34976b6 | 328 | return FALSE; |
e135f41b | 329 | |
116c20d2 | 330 | if (! NAME (aout, write_syms) (abfd)) |
b34976b6 | 331 | return FALSE; |
e135f41b NC |
332 | } |
333 | ||
116c20d2 NC |
334 | if (obj_textsec (abfd)->reloc_count > 0 |
335 | || obj_datasec (abfd)->reloc_count > 0) | |
e135f41b | 336 | { |
bbb1afc8 | 337 | if (bfd_seek (abfd, (file_ptr) (N_TRELOFF (execp)), SEEK_SET) != 0 |
116c20d2 | 338 | || !NAME (aout, squirt_out_relocs) (abfd, obj_textsec (abfd)) |
bbb1afc8 | 339 | || bfd_seek (abfd, (file_ptr) (N_DRELOFF (execp)), SEEK_SET) != 0 |
68ffbac6 | 340 | || !NAME (aout, squirt_out_relocs) (abfd, obj_datasec (abfd))) |
b34976b6 | 341 | return FALSE; |
e135f41b NC |
342 | } |
343 | ||
b34976b6 | 344 | return TRUE; |
dc810e39 | 345 | } |
e135f41b NC |
346 | |
347 | /* Write an object file. | |
348 | Section contents have already been written. We write the | |
349 | file header, symbols, and relocation. */ | |
350 | ||
b34976b6 | 351 | static bfd_boolean |
116c20d2 | 352 | MY(write_object_contents) (bfd *abfd) |
e135f41b NC |
353 | { |
354 | struct internal_exec *execp = exec_hdr (abfd); | |
355 | ||
356 | /* We must make certain that the magic number has been set. This | |
357 | will normally have been done by set_section_contents, but only if | |
358 | there actually are some section contents. */ | |
359 | if (! abfd->output_has_begun) | |
3a8c4a5b | 360 | NAME (aout, adjust_sizes_and_vmas) (abfd); |
e135f41b NC |
361 | |
362 | obj_reloc_entry_size (abfd) = RELOC_SIZE; | |
363 | ||
116c20d2 | 364 | return WRITE_HEADERS (abfd, execp); |
e135f41b NC |
365 | } |
366 | ||
116c20d2 NC |
367 | /* Swap the information in an executable header @var{raw_bytes} taken |
368 | from a raw byte stream memory image into the internal exec header | |
369 | structure "execp". */ | |
e135f41b NC |
370 | |
371 | #ifndef NAME_swap_exec_header_in | |
372 | void | |
116c20d2 NC |
373 | NAME (aout, swap_exec_header_in) (bfd *abfd, |
374 | struct external_exec *bytes, | |
375 | struct internal_exec *execp) | |
e135f41b | 376 | { |
e135f41b NC |
377 | /* The internal_exec structure has some fields that are unused in this |
378 | configuration (IE for i960), so ensure that all such uninitialized | |
379 | fields are zero'd out. There are places where two of these structs | |
116c20d2 NC |
380 | are memcmp'd, and thus the contents do matter. */ |
381 | memset ((void *) execp, 0, sizeof (struct internal_exec)); | |
e135f41b NC |
382 | /* Now fill in fields in the execp, from the bytes in the raw data. */ |
383 | execp->a_info = GET_MAGIC (abfd, bytes->e_info); | |
384 | execp->a_text = GET_WORD (abfd, bytes->e_text); | |
385 | execp->a_data = GET_WORD (abfd, bytes->e_data); | |
386 | execp->a_bss = GET_WORD (abfd, bytes->e_bss); | |
387 | execp->a_syms = GET_WORD (abfd, bytes->e_syms); | |
388 | execp->a_entry = GET_WORD (abfd, bytes->e_entry); | |
389 | ||
390 | if (GET_WORD (abfd, bytes->e_flag) & A_FLAG_RELOC_STRIPPED) | |
391 | { | |
392 | execp->a_trsize = 0; | |
393 | execp->a_drsize = 0; | |
394 | } | |
395 | else | |
396 | { | |
397 | execp->a_trsize = execp->a_text; | |
398 | execp->a_drsize = execp->a_data; | |
399 | } | |
400 | } | |
116c20d2 | 401 | #define NAME_swap_exec_header_in NAME (aout, swap_exec_header_in) |
e135f41b NC |
402 | #endif |
403 | ||
116c20d2 NC |
404 | /* Swap the information in an internal exec header structure |
405 | "execp" into the buffer "bytes" ready for writing to disk. */ | |
e135f41b | 406 | void |
116c20d2 NC |
407 | NAME (aout, swap_exec_header_out) (bfd *abfd, |
408 | struct internal_exec *execp, | |
409 | struct external_exec *bytes) | |
e135f41b | 410 | { |
116c20d2 | 411 | /* Now fill in fields in the raw data, from the fields in the exec struct. */ |
e135f41b NC |
412 | PUT_MAGIC (abfd, execp->a_info, bytes->e_info); |
413 | PUT_WORD (abfd, execp->a_text, bytes->e_text); | |
414 | PUT_WORD (abfd, execp->a_data, bytes->e_data); | |
415 | PUT_WORD (abfd, execp->a_bss, bytes->e_bss); | |
416 | PUT_WORD (abfd, execp->a_syms, bytes->e_syms); | |
417 | PUT_WORD (abfd, execp->a_entry, bytes->e_entry); | |
418 | PUT_WORD (abfd, 0, bytes->e_unused); | |
419 | ||
116c20d2 NC |
420 | if ((execp->a_trsize == 0 || execp->a_text == 0) |
421 | && (execp->a_drsize == 0 || execp->a_data == 0)) | |
422 | PUT_WORD (abfd, A_FLAG_RELOC_STRIPPED, bytes->e_flag); | |
423 | else if (execp->a_trsize == execp->a_text | |
424 | && execp->a_drsize == execp->a_data) | |
425 | PUT_WORD (abfd, 0, bytes->e_flag); | |
e135f41b NC |
426 | else |
427 | { | |
116c20d2 | 428 | /* TODO: print a proper warning message. */ |
e135f41b NC |
429 | fprintf (stderr, "BFD:%s:%d: internal error\n", __FILE__, __LINE__); |
430 | PUT_WORD (abfd, 0, bytes->e_flag); | |
431 | } | |
432 | } | |
433 | ||
434 | /* Make all the section for an a.out file. */ | |
435 | ||
b34976b6 | 436 | bfd_boolean |
116c20d2 | 437 | NAME (aout, make_sections) (bfd *abfd) |
e135f41b | 438 | { |
116c20d2 | 439 | if (obj_textsec (abfd) == NULL && bfd_make_section (abfd, ".text") == NULL) |
b34976b6 | 440 | return FALSE; |
116c20d2 | 441 | if (obj_datasec (abfd) == NULL && bfd_make_section (abfd, ".data") == NULL) |
b34976b6 | 442 | return FALSE; |
116c20d2 | 443 | if (obj_bsssec (abfd) == NULL && bfd_make_section (abfd, ".bss") == NULL) |
b34976b6 AM |
444 | return FALSE; |
445 | return TRUE; | |
e135f41b NC |
446 | } |
447 | ||
116c20d2 NC |
448 | /* Some a.out variant thinks that the file open in ABFD |
449 | checking is an a.out file. Do some more checking, and set up | |
450 | for access if it really is. Call back to the calling | |
451 | environment's "finish up" function just before returning, to | |
452 | handle any last-minute setup. */ | |
e135f41b NC |
453 | |
454 | const bfd_target * | |
116c20d2 NC |
455 | NAME (aout, some_aout_object_p) (bfd *abfd, |
456 | struct internal_exec *execp, | |
457 | const bfd_target *(*callback_to_real_object_p) (bfd *)) | |
e135f41b NC |
458 | { |
459 | struct aout_data_struct *rawptr, *oldrawptr; | |
460 | const bfd_target *result; | |
dc810e39 | 461 | bfd_size_type amt = sizeof (struct aout_data_struct); |
e135f41b | 462 | |
116c20d2 | 463 | rawptr = bfd_zalloc (abfd, amt); |
e135f41b NC |
464 | if (rawptr == NULL) |
465 | return 0; | |
466 | ||
467 | oldrawptr = abfd->tdata.aout_data; | |
468 | abfd->tdata.aout_data = rawptr; | |
469 | ||
dc12032b | 470 | /* Copy the contents of the old tdata struct. */ |
e135f41b NC |
471 | if (oldrawptr != NULL) |
472 | *abfd->tdata.aout_data = *oldrawptr; | |
473 | ||
474 | abfd->tdata.aout_data->a.hdr = &rawptr->e; | |
116c20d2 | 475 | *(abfd->tdata.aout_data->a.hdr) = *execp; /* Copy in the internal_exec struct. */ |
e135f41b NC |
476 | execp = abfd->tdata.aout_data->a.hdr; |
477 | ||
116c20d2 | 478 | /* Set the file flags. */ |
e135f41b NC |
479 | abfd->flags = BFD_NO_FLAGS; |
480 | if (execp->a_drsize || execp->a_trsize) | |
481 | abfd->flags |= HAS_RELOC; | |
116c20d2 | 482 | /* Setting of EXEC_P has been deferred to the bottom of this function. */ |
e135f41b NC |
483 | if (execp->a_syms) |
484 | abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS; | |
bbb1afc8 | 485 | if (N_DYNAMIC (execp)) |
e135f41b NC |
486 | abfd->flags |= DYNAMIC; |
487 | ||
bbb1afc8 | 488 | if (N_MAGIC (execp) == ZMAGIC) |
e135f41b NC |
489 | { |
490 | abfd->flags |= D_PAGED | WP_TEXT; | |
491 | adata (abfd).magic = z_magic; | |
492 | } | |
bbb1afc8 | 493 | else if (N_MAGIC (execp) == NMAGIC) |
e135f41b NC |
494 | { |
495 | abfd->flags |= WP_TEXT; | |
496 | adata (abfd).magic = n_magic; | |
497 | } | |
bbb1afc8 | 498 | else if (N_MAGIC (execp) == OMAGIC) |
e135f41b NC |
499 | adata (abfd).magic = o_magic; |
500 | else | |
501 | { | |
502 | /* Should have been checked with N_BADMAG before this routine | |
503 | was called. */ | |
504 | abort (); | |
505 | } | |
506 | ||
507 | bfd_get_start_address (abfd) = execp->a_entry; | |
508 | ||
116c20d2 | 509 | obj_aout_symbols (abfd) = NULL; |
e135f41b NC |
510 | bfd_get_symcount (abfd) = execp->a_syms / sizeof (struct external_nlist); |
511 | ||
512 | /* The default relocation entry size is that of traditional V7 Unix. */ | |
513 | obj_reloc_entry_size (abfd) = RELOC_SIZE; | |
514 | ||
116c20d2 | 515 | /* The default symbol entry size is that of traditional Unix. */ |
e135f41b NC |
516 | obj_symbol_entry_size (abfd) = EXTERNAL_NLIST_SIZE; |
517 | ||
518 | #ifdef USE_MMAP | |
519 | bfd_init_window (&obj_aout_sym_window (abfd)); | |
520 | bfd_init_window (&obj_aout_string_window (abfd)); | |
521 | #endif | |
116c20d2 | 522 | |
e135f41b NC |
523 | obj_aout_external_syms (abfd) = NULL; |
524 | obj_aout_external_strings (abfd) = NULL; | |
525 | obj_aout_sym_hashes (abfd) = NULL; | |
526 | ||
116c20d2 | 527 | if (! NAME (aout, make_sections) (abfd)) |
e135f41b NC |
528 | return NULL; |
529 | ||
eea6121a AM |
530 | obj_datasec (abfd)->size = execp->a_data; |
531 | obj_bsssec (abfd)->size = execp->a_bss; | |
e135f41b NC |
532 | |
533 | obj_textsec (abfd)->flags = | |
534 | (execp->a_trsize != 0 | |
535 | ? (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS | SEC_RELOC) | |
536 | : (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS)); | |
537 | obj_datasec (abfd)->flags = | |
538 | (execp->a_drsize != 0 | |
539 | ? (SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS | SEC_RELOC) | |
540 | : (SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS)); | |
541 | obj_bsssec (abfd)->flags = SEC_ALLOC; | |
542 | ||
543 | #ifdef THIS_IS_ONLY_DOCUMENTATION | |
544 | /* The common code can't fill in these things because they depend | |
545 | on either the start address of the text segment, the rounding | |
546 | up of virtual addresses between segments, or the starting file | |
547 | position of the text segment -- all of which varies among different | |
548 | versions of a.out. */ | |
549 | ||
550 | /* Call back to the format-dependent code to fill in the rest of the | |
551 | fields and do any further cleanup. Things that should be filled | |
552 | in by the callback: */ | |
e135f41b NC |
553 | struct exec *execp = exec_hdr (abfd); |
554 | ||
bbb1afc8 | 555 | obj_textsec (abfd)->size = N_TXTSIZE (execp); |
116c20d2 | 556 | /* Data and bss are already filled in since they're so standard. */ |
e135f41b | 557 | |
116c20d2 | 558 | /* The virtual memory addresses of the sections. */ |
bbb1afc8 AM |
559 | obj_textsec (abfd)->vma = N_TXTADDR (execp); |
560 | obj_datasec (abfd)->vma = N_DATADDR (execp); | |
561 | obj_bsssec (abfd)->vma = N_BSSADDR (execp); | |
e135f41b | 562 | |
116c20d2 | 563 | /* The file offsets of the sections. */ |
bbb1afc8 AM |
564 | obj_textsec (abfd)->filepos = N_TXTOFF (execp); |
565 | obj_datasec (abfd)->filepos = N_DATOFF (execp); | |
e135f41b | 566 | |
116c20d2 | 567 | /* The file offsets of the relocation info. */ |
bbb1afc8 AM |
568 | obj_textsec (abfd)->rel_filepos = N_TRELOFF (execp); |
569 | obj_datasec (abfd)->rel_filepos = N_DRELOFF (execp); | |
e135f41b NC |
570 | |
571 | /* The file offsets of the string table and symbol table. */ | |
bbb1afc8 AM |
572 | obj_str_filepos (abfd) = N_STROFF (execp); |
573 | obj_sym_filepos (abfd) = N_SYMOFF (execp); | |
e135f41b NC |
574 | |
575 | /* Determine the architecture and machine type of the object file. */ | |
576 | abfd->obj_arch = bfd_arch_obscure; | |
577 | ||
578 | adata(abfd)->page_size = TARGET_PAGE_SIZE; | |
579 | adata(abfd)->segment_size = SEGMENT_SIZE; | |
580 | adata(abfd)->exec_bytes_size = EXEC_BYTES_SIZE; | |
581 | ||
582 | return abfd->xvec; | |
583 | ||
584 | /* The architecture is encoded in various ways in various a.out variants, | |
585 | or is not encoded at all in some of them. The relocation size depends | |
586 | on the architecture and the a.out variant. Finally, the return value | |
587 | is the bfd_target vector in use. If an error occurs, return zero and | |
588 | set bfd_error to the appropriate error code. | |
589 | ||
590 | Formats such as b.out, which have additional fields in the a.out | |
591 | header, should cope with them in this callback as well. */ | |
116c20d2 | 592 | #endif /* DOCUMENTATION */ |
e135f41b NC |
593 | |
594 | result = (*callback_to_real_object_p)(abfd); | |
595 | ||
596 | /* Now that the segment addresses have been worked out, take a better | |
597 | guess at whether the file is executable. If the entry point | |
598 | is within the text segment, assume it is. (This makes files | |
599 | executable even if their entry point address is 0, as long as | |
600 | their text starts at zero.). | |
601 | ||
602 | This test had to be changed to deal with systems where the text segment | |
603 | runs at a different location than the default. The problem is that the | |
604 | entry address can appear to be outside the text segment, thus causing an | |
605 | erroneous conclusion that the file isn't executable. | |
606 | ||
607 | To fix this, we now accept any non-zero entry point as an indication of | |
608 | executability. This will work most of the time, since only the linker | |
609 | sets the entry point, and that is likely to be non-zero for most systems. */ | |
610 | ||
611 | if (execp->a_entry != 0 | |
612 | || (execp->a_entry >= obj_textsec(abfd)->vma | |
eea6121a | 613 | && execp->a_entry < obj_textsec(abfd)->vma + obj_textsec(abfd)->size)) |
e135f41b NC |
614 | abfd->flags |= EXEC_P; |
615 | #ifdef STAT_FOR_EXEC | |
616 | else | |
617 | { | |
618 | struct stat stat_buf; | |
619 | ||
620 | /* The original heuristic doesn't work in some important cases. | |
07d6d2b8 AM |
621 | The a.out file has no information about the text start |
622 | address. For files (like kernels) linked to non-standard | |
623 | addresses (ld -Ttext nnn) the entry point may not be between | |
624 | the default text start (obj_textsec(abfd)->vma) and | |
625 | (obj_textsec(abfd)->vma) + text size. This is not just a mach | |
626 | issue. Many kernels are loaded at non standard addresses. */ | |
e135f41b NC |
627 | if (abfd->iostream != NULL |
628 | && (abfd->flags & BFD_IN_MEMORY) == 0 | |
629 | && (fstat(fileno((FILE *) (abfd->iostream)), &stat_buf) == 0) | |
630 | && ((stat_buf.st_mode & 0111) != 0)) | |
631 | abfd->flags |= EXEC_P; | |
632 | } | |
633 | #endif /* STAT_FOR_EXEC */ | |
634 | ||
0e71e495 | 635 | if (!result) |
e135f41b NC |
636 | { |
637 | free (rawptr); | |
638 | abfd->tdata.aout_data = oldrawptr; | |
639 | } | |
640 | return result; | |
641 | } | |
642 | ||
116c20d2 | 643 | /* Initialize ABFD for use with a.out files. */ |
e135f41b | 644 | |
b34976b6 | 645 | bfd_boolean |
116c20d2 | 646 | NAME (aout, mkobject) (bfd *abfd) |
e135f41b NC |
647 | { |
648 | struct aout_data_struct *rawptr; | |
dc810e39 | 649 | bfd_size_type amt = sizeof (struct aout_data_struct); |
e135f41b NC |
650 | |
651 | bfd_set_error (bfd_error_system_call); | |
652 | ||
116c20d2 NC |
653 | /* Use an intermediate variable for clarity. */ |
654 | rawptr = bfd_zalloc (abfd, amt); | |
e135f41b NC |
655 | |
656 | if (rawptr == NULL) | |
b34976b6 | 657 | return FALSE; |
e135f41b NC |
658 | |
659 | abfd->tdata.aout_data = rawptr; | |
660 | exec_hdr (abfd) = &(rawptr->e); | |
661 | ||
116c20d2 NC |
662 | obj_textsec (abfd) = NULL; |
663 | obj_datasec (abfd) = NULL; | |
664 | obj_bsssec (abfd) = NULL; | |
e135f41b | 665 | |
b34976b6 | 666 | return TRUE; |
e135f41b NC |
667 | } |
668 | ||
116c20d2 NC |
669 | /* Keep track of machine architecture and machine type for |
670 | a.out's. Return the <<machine_type>> for a particular | |
671 | architecture and machine, or <<M_UNKNOWN>> if that exact architecture | |
672 | and machine can't be represented in a.out format. | |
e135f41b | 673 | |
116c20d2 NC |
674 | If the architecture is understood, machine type 0 (default) |
675 | is always understood. */ | |
e135f41b NC |
676 | |
677 | enum machine_type | |
116c20d2 NC |
678 | NAME (aout, machine_type) (enum bfd_architecture arch, |
679 | unsigned long machine, | |
680 | bfd_boolean *unknown) | |
e135f41b NC |
681 | { |
682 | enum machine_type arch_flags; | |
683 | ||
684 | arch_flags = M_UNKNOWN; | |
b34976b6 | 685 | *unknown = TRUE; |
e135f41b NC |
686 | |
687 | switch (arch) | |
688 | { | |
689 | case bfd_arch_sparc: | |
690 | if (machine == 0 | |
691 | || machine == bfd_mach_sparc | |
692 | || machine == bfd_mach_sparc_sparclite | |
693 | || machine == bfd_mach_sparc_v9) | |
694 | arch_flags = M_SPARC; | |
695 | else if (machine == bfd_mach_sparc_sparclet) | |
696 | arch_flags = M_SPARCLET; | |
697 | break; | |
698 | ||
e135f41b | 699 | case bfd_arch_i386: |
250d94fd AM |
700 | if (machine == 0 |
701 | || machine == bfd_mach_i386_i386 | |
702 | || machine == bfd_mach_i386_i386_intel_syntax) | |
703 | arch_flags = M_386; | |
e135f41b NC |
704 | break; |
705 | ||
e135f41b NC |
706 | case bfd_arch_arm: |
707 | if (machine == 0) arch_flags = M_ARM; | |
708 | break; | |
709 | ||
710 | case bfd_arch_mips: | |
711 | switch (machine) | |
712 | { | |
713 | case 0: | |
714 | case 2000: | |
715 | case bfd_mach_mips3000: | |
07d6d2b8 | 716 | arch_flags = M_MIPS1; |
e135f41b | 717 | break; |
116c20d2 | 718 | case bfd_mach_mips4000: /* MIPS3 */ |
e135f41b | 719 | case bfd_mach_mips4400: |
116c20d2 NC |
720 | case bfd_mach_mips8000: /* MIPS4 */ |
721 | case bfd_mach_mips6000: /* Real MIPS2: */ | |
07d6d2b8 | 722 | arch_flags = M_MIPS2; |
e135f41b NC |
723 | break; |
724 | default: | |
725 | arch_flags = M_UNKNOWN; | |
726 | break; | |
727 | } | |
728 | break; | |
729 | ||
730 | case bfd_arch_ns32k: | |
731 | switch (machine) | |
732 | { | |
07d6d2b8 | 733 | case 0: arch_flags = M_NS32532; break; |
e135f41b NC |
734 | case 32032: arch_flags = M_NS32032; break; |
735 | case 32532: arch_flags = M_NS32532; break; | |
736 | default: arch_flags = M_UNKNOWN; break; | |
737 | } | |
738 | break; | |
739 | ||
740 | case bfd_arch_pdp11: | |
741 | /* TODO: arch_flags = M_PDP11; */ | |
b34976b6 | 742 | *unknown = FALSE; |
e135f41b NC |
743 | break; |
744 | ||
745 | case bfd_arch_vax: | |
b34976b6 | 746 | *unknown = FALSE; |
e135f41b | 747 | break; |
dc810e39 | 748 | |
e135f41b NC |
749 | default: |
750 | arch_flags = M_UNKNOWN; | |
751 | } | |
752 | ||
753 | if (arch_flags != M_UNKNOWN) | |
b34976b6 | 754 | *unknown = FALSE; |
e135f41b NC |
755 | |
756 | return arch_flags; | |
757 | } | |
758 | ||
116c20d2 NC |
759 | /* Set the architecture and the machine of the ABFD to the |
760 | values ARCH and MACHINE. Verify that @ABFD's format | |
761 | can support the architecture required. */ | |
e135f41b | 762 | |
b34976b6 | 763 | bfd_boolean |
116c20d2 NC |
764 | NAME (aout, set_arch_mach) (bfd *abfd, |
765 | enum bfd_architecture arch, | |
766 | unsigned long machine) | |
e135f41b NC |
767 | { |
768 | if (! bfd_default_set_arch_mach (abfd, arch, machine)) | |
b34976b6 | 769 | return FALSE; |
e135f41b NC |
770 | |
771 | if (arch != bfd_arch_unknown) | |
772 | { | |
b34976b6 | 773 | bfd_boolean unknown; |
e135f41b | 774 | |
116c20d2 | 775 | NAME (aout, machine_type) (arch, machine, &unknown); |
e135f41b | 776 | if (unknown) |
b34976b6 | 777 | return FALSE; |
e135f41b NC |
778 | } |
779 | ||
780 | obj_reloc_entry_size (abfd) = RELOC_SIZE; | |
781 | ||
782 | return (*aout_backend_info(abfd)->set_sizes) (abfd); | |
783 | } | |
784 | ||
785 | static void | |
116c20d2 | 786 | adjust_o_magic (bfd *abfd, struct internal_exec *execp) |
e135f41b NC |
787 | { |
788 | file_ptr pos = adata (abfd).exec_bytes_size; | |
789 | bfd_vma vma = 0; | |
790 | int pad = 0; | |
791 | ||
792 | /* Text. */ | |
793 | obj_textsec (abfd)->filepos = pos; | |
794 | if (! obj_textsec (abfd)->user_set_vma) | |
795 | obj_textsec (abfd)->vma = vma; | |
796 | else | |
797 | vma = obj_textsec (abfd)->vma; | |
798 | ||
eea6121a AM |
799 | pos += obj_textsec (abfd)->size; |
800 | vma += obj_textsec (abfd)->size; | |
e135f41b NC |
801 | |
802 | /* Data. */ | |
803 | if (!obj_datasec (abfd)->user_set_vma) | |
804 | { | |
eea6121a | 805 | obj_textsec (abfd)->size += pad; |
e135f41b NC |
806 | pos += pad; |
807 | vma += pad; | |
808 | obj_datasec (abfd)->vma = vma; | |
809 | } | |
810 | else | |
811 | vma = obj_datasec (abfd)->vma; | |
812 | obj_datasec (abfd)->filepos = pos; | |
eea6121a AM |
813 | pos += obj_datasec (abfd)->size; |
814 | vma += obj_datasec (abfd)->size; | |
e135f41b NC |
815 | |
816 | /* BSS. */ | |
817 | if (! obj_bsssec (abfd)->user_set_vma) | |
818 | { | |
eea6121a | 819 | obj_datasec (abfd)->size += pad; |
e135f41b NC |
820 | pos += pad; |
821 | vma += pad; | |
822 | obj_bsssec (abfd)->vma = vma; | |
823 | } | |
824 | else | |
825 | { | |
08da05b0 | 826 | /* The VMA of the .bss section is set by the VMA of the |
07d6d2b8 AM |
827 | .data section plus the size of the .data section. We may |
828 | need to add padding bytes to make this true. */ | |
e135f41b NC |
829 | pad = obj_bsssec (abfd)->vma - vma; |
830 | if (pad > 0) | |
831 | { | |
eea6121a | 832 | obj_datasec (abfd)->size += pad; |
e135f41b NC |
833 | pos += pad; |
834 | } | |
835 | } | |
836 | obj_bsssec (abfd)->filepos = pos; | |
837 | ||
838 | /* Fix up the exec header. */ | |
eea6121a AM |
839 | execp->a_text = obj_textsec (abfd)->size; |
840 | execp->a_data = obj_datasec (abfd)->size; | |
841 | execp->a_bss = obj_bsssec (abfd)->size; | |
bbb1afc8 | 842 | N_SET_MAGIC (execp, OMAGIC); |
e135f41b NC |
843 | } |
844 | ||
845 | static void | |
116c20d2 | 846 | adjust_z_magic (bfd *abfd, struct internal_exec *execp) |
e135f41b NC |
847 | { |
848 | bfd_size_type data_pad, text_pad; | |
849 | file_ptr text_end; | |
dc810e39 | 850 | const struct aout_backend_data *abdp; |
e135f41b | 851 | int ztih; /* Nonzero if text includes exec header. */ |
dc810e39 | 852 | |
e135f41b NC |
853 | abdp = aout_backend_info (abfd); |
854 | ||
855 | /* Text. */ | |
856 | ztih = (abdp != NULL | |
857 | && (abdp->text_includes_header | |
858 | || obj_aout_subformat (abfd) == q_magic_format)); | |
859 | obj_textsec(abfd)->filepos = (ztih | |
860 | ? adata(abfd).exec_bytes_size | |
861 | : adata(abfd).zmagic_disk_block_size); | |
862 | if (! obj_textsec(abfd)->user_set_vma) | |
863 | { | |
864 | /* ?? Do we really need to check for relocs here? */ | |
865 | obj_textsec(abfd)->vma = ((abfd->flags & HAS_RELOC) | |
866 | ? 0 | |
867 | : (ztih | |
868 | ? (abdp->default_text_vma | |
869 | + adata (abfd).exec_bytes_size) | |
870 | : abdp->default_text_vma)); | |
871 | text_pad = 0; | |
872 | } | |
873 | else | |
874 | { | |
875 | /* The .text section is being loaded at an unusual address. We | |
07d6d2b8 AM |
876 | may need to pad it such that the .data section starts at a page |
877 | boundary. */ | |
e135f41b NC |
878 | if (ztih) |
879 | text_pad = ((obj_textsec (abfd)->filepos - obj_textsec (abfd)->vma) | |
880 | & (adata (abfd).page_size - 1)); | |
881 | else | |
882 | text_pad = ((- obj_textsec (abfd)->vma) | |
883 | & (adata (abfd).page_size - 1)); | |
884 | } | |
885 | ||
886 | /* Find start of data. */ | |
887 | if (ztih) | |
888 | { | |
eea6121a | 889 | text_end = obj_textsec (abfd)->filepos + obj_textsec (abfd)->size; |
e135f41b NC |
890 | text_pad += BFD_ALIGN (text_end, adata (abfd).page_size) - text_end; |
891 | } | |
892 | else | |
893 | { | |
894 | /* Note that if page_size == zmagic_disk_block_size, then | |
895 | filepos == page_size, and this case is the same as the ztih | |
896 | case. */ | |
eea6121a | 897 | text_end = obj_textsec (abfd)->size; |
e135f41b NC |
898 | text_pad += BFD_ALIGN (text_end, adata (abfd).page_size) - text_end; |
899 | text_end += obj_textsec (abfd)->filepos; | |
900 | } | |
901 | ||
eea6121a | 902 | obj_textsec (abfd)->size += text_pad; |
e135f41b NC |
903 | text_end += text_pad; |
904 | ||
905 | /* Data. */ | |
906 | if (!obj_datasec(abfd)->user_set_vma) | |
907 | { | |
908 | bfd_vma vma; | |
eea6121a | 909 | vma = obj_textsec(abfd)->vma + obj_textsec(abfd)->size; |
e135f41b NC |
910 | obj_datasec(abfd)->vma = BFD_ALIGN (vma, adata(abfd).segment_size); |
911 | } | |
912 | if (abdp && abdp->zmagic_mapped_contiguous) | |
913 | { | |
914 | text_pad = (obj_datasec(abfd)->vma | |
915 | - obj_textsec(abfd)->vma | |
eea6121a AM |
916 | - obj_textsec(abfd)->size); |
917 | obj_textsec(abfd)->size += text_pad; | |
e135f41b NC |
918 | } |
919 | obj_datasec (abfd)->filepos = (obj_textsec (abfd)->filepos | |
eea6121a | 920 | + obj_textsec (abfd)->size); |
dc810e39 | 921 | |
e135f41b | 922 | /* Fix up exec header while we're at it. */ |
eea6121a | 923 | execp->a_text = obj_textsec(abfd)->size; |
e135f41b NC |
924 | if (ztih && (!abdp || (abdp && !abdp->exec_header_not_counted))) |
925 | execp->a_text += adata(abfd).exec_bytes_size; | |
bbb1afc8 | 926 | N_SET_MAGIC (execp, ZMAGIC); |
e135f41b NC |
927 | |
928 | /* Spec says data section should be rounded up to page boundary. */ | |
eea6121a AM |
929 | obj_datasec(abfd)->size |
930 | = align_power (obj_datasec(abfd)->size, | |
e135f41b | 931 | obj_bsssec(abfd)->alignment_power); |
eea6121a | 932 | execp->a_data = BFD_ALIGN (obj_datasec(abfd)->size, |
e135f41b | 933 | adata(abfd).page_size); |
eea6121a | 934 | data_pad = execp->a_data - obj_datasec(abfd)->size; |
e135f41b NC |
935 | |
936 | /* BSS. */ | |
937 | if (!obj_bsssec(abfd)->user_set_vma) | |
938 | obj_bsssec(abfd)->vma = (obj_datasec(abfd)->vma | |
eea6121a | 939 | + obj_datasec(abfd)->size); |
e135f41b NC |
940 | /* If the BSS immediately follows the data section and extra space |
941 | in the page is left after the data section, fudge data | |
942 | in the header so that the bss section looks smaller by that | |
943 | amount. We'll start the bss section there, and lie to the OS. | |
944 | (Note that a linker script, as well as the above assignment, | |
945 | could have explicitly set the BSS vma to immediately follow | |
946 | the data section.) */ | |
947 | if (align_power (obj_bsssec(abfd)->vma, obj_bsssec(abfd)->alignment_power) | |
eea6121a AM |
948 | == obj_datasec(abfd)->vma + obj_datasec(abfd)->size) |
949 | execp->a_bss = (data_pad > obj_bsssec(abfd)->size) ? 0 : | |
950 | obj_bsssec(abfd)->size - data_pad; | |
e135f41b | 951 | else |
eea6121a | 952 | execp->a_bss = obj_bsssec(abfd)->size; |
e135f41b NC |
953 | } |
954 | ||
955 | static void | |
116c20d2 | 956 | adjust_n_magic (bfd *abfd, struct internal_exec *execp) |
e135f41b NC |
957 | { |
958 | file_ptr pos = adata(abfd).exec_bytes_size; | |
959 | bfd_vma vma = 0; | |
960 | int pad; | |
dc810e39 | 961 | |
e135f41b NC |
962 | /* Text. */ |
963 | obj_textsec(abfd)->filepos = pos; | |
964 | if (!obj_textsec(abfd)->user_set_vma) | |
965 | obj_textsec(abfd)->vma = vma; | |
966 | else | |
967 | vma = obj_textsec(abfd)->vma; | |
eea6121a AM |
968 | pos += obj_textsec(abfd)->size; |
969 | vma += obj_textsec(abfd)->size; | |
e135f41b NC |
970 | |
971 | /* Data. */ | |
972 | obj_datasec(abfd)->filepos = pos; | |
973 | if (!obj_datasec(abfd)->user_set_vma) | |
974 | obj_datasec(abfd)->vma = BFD_ALIGN (vma, adata(abfd).segment_size); | |
975 | vma = obj_datasec(abfd)->vma; | |
dc810e39 | 976 | |
e135f41b | 977 | /* Since BSS follows data immediately, see if it needs alignment. */ |
eea6121a | 978 | vma += obj_datasec(abfd)->size; |
e135f41b | 979 | pad = align_power (vma, obj_bsssec(abfd)->alignment_power) - vma; |
eea6121a AM |
980 | obj_datasec(abfd)->size += pad; |
981 | pos += obj_datasec(abfd)->size; | |
e135f41b NC |
982 | |
983 | /* BSS. */ | |
984 | if (!obj_bsssec(abfd)->user_set_vma) | |
985 | obj_bsssec(abfd)->vma = vma; | |
986 | else | |
987 | vma = obj_bsssec(abfd)->vma; | |
988 | ||
989 | /* Fix up exec header. */ | |
eea6121a AM |
990 | execp->a_text = obj_textsec(abfd)->size; |
991 | execp->a_data = obj_datasec(abfd)->size; | |
992 | execp->a_bss = obj_bsssec(abfd)->size; | |
bbb1afc8 | 993 | N_SET_MAGIC (execp, NMAGIC); |
e135f41b NC |
994 | } |
995 | ||
b34976b6 | 996 | bfd_boolean |
3a8c4a5b | 997 | NAME (aout, adjust_sizes_and_vmas) (bfd *abfd) |
e135f41b NC |
998 | { |
999 | struct internal_exec *execp = exec_hdr (abfd); | |
1000 | ||
116c20d2 | 1001 | if (! NAME (aout, make_sections) (abfd)) |
b34976b6 | 1002 | return FALSE; |
e135f41b NC |
1003 | |
1004 | if (adata(abfd).magic != undecided_magic) | |
b34976b6 | 1005 | return TRUE; |
e135f41b | 1006 | |
eea6121a AM |
1007 | obj_textsec(abfd)->size = |
1008 | align_power(obj_textsec(abfd)->size, | |
e135f41b NC |
1009 | obj_textsec(abfd)->alignment_power); |
1010 | ||
e135f41b NC |
1011 | /* Rule (heuristic) for when to pad to a new page. Note that there |
1012 | are (at least) two ways demand-paged (ZMAGIC) files have been | |
1013 | handled. Most Berkeley-based systems start the text segment at | |
1014 | (TARGET_PAGE_SIZE). However, newer versions of SUNOS start the text | |
1015 | segment right after the exec header; the latter is counted in the | |
1016 | text segment size, and is paged in by the kernel with the rest of | |
1017 | the text. */ | |
1018 | ||
1019 | /* This perhaps isn't the right way to do this, but made it simpler for me | |
1020 | to understand enough to implement it. Better would probably be to go | |
1021 | right from BFD flags to alignment/positioning characteristics. But the | |
1022 | old code was sloppy enough about handling the flags, and had enough | |
1023 | other magic, that it was a little hard for me to understand. I think | |
1024 | I understand it better now, but I haven't time to do the cleanup this | |
1025 | minute. */ | |
1026 | ||
1027 | if (abfd->flags & WP_TEXT) | |
1028 | adata(abfd).magic = n_magic; | |
1029 | else | |
1030 | adata(abfd).magic = o_magic; | |
1031 | ||
1032 | #ifdef BFD_AOUT_DEBUG /* requires gcc2 */ | |
1033 | #if __GNUC__ >= 2 | |
1034 | fprintf (stderr, "%s text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x,%x>\n", | |
1035 | ({ char *str; | |
1036 | switch (adata(abfd).magic) { | |
1037 | case n_magic: str = "NMAGIC"; break; | |
1038 | case o_magic: str = "OMAGIC"; break; | |
1039 | case z_magic: str = "ZMAGIC"; break; | |
1040 | default: abort (); | |
1041 | } | |
1042 | str; | |
1043 | }), | |
eea6121a | 1044 | obj_textsec(abfd)->vma, obj_textsec(abfd)->size, |
07d6d2b8 | 1045 | obj_textsec(abfd)->alignment_power, |
eea6121a | 1046 | obj_datasec(abfd)->vma, obj_datasec(abfd)->size, |
07d6d2b8 | 1047 | obj_datasec(abfd)->alignment_power, |
eea6121a | 1048 | obj_bsssec(abfd)->vma, obj_bsssec(abfd)->size, |
07d6d2b8 | 1049 | obj_bsssec(abfd)->alignment_power); |
e135f41b NC |
1050 | #endif |
1051 | #endif | |
1052 | ||
1053 | switch (adata(abfd).magic) | |
1054 | { | |
1055 | case o_magic: | |
1056 | adjust_o_magic (abfd, execp); | |
1057 | break; | |
1058 | case z_magic: | |
1059 | adjust_z_magic (abfd, execp); | |
1060 | break; | |
1061 | case n_magic: | |
1062 | adjust_n_magic (abfd, execp); | |
1063 | break; | |
1064 | default: | |
1065 | abort (); | |
1066 | } | |
1067 | ||
1068 | #ifdef BFD_AOUT_DEBUG | |
1069 | fprintf (stderr, " text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x>\n", | |
eea6121a | 1070 | obj_textsec(abfd)->vma, obj_textsec(abfd)->size, |
07d6d2b8 | 1071 | obj_textsec(abfd)->filepos, |
eea6121a | 1072 | obj_datasec(abfd)->vma, obj_datasec(abfd)->size, |
07d6d2b8 | 1073 | obj_datasec(abfd)->filepos, |
eea6121a | 1074 | obj_bsssec(abfd)->vma, obj_bsssec(abfd)->size); |
e135f41b NC |
1075 | #endif |
1076 | ||
b34976b6 | 1077 | return TRUE; |
e135f41b NC |
1078 | } |
1079 | ||
116c20d2 | 1080 | /* Called by the BFD in response to a bfd_make_section request. */ |
e135f41b | 1081 | |
b34976b6 | 1082 | bfd_boolean |
116c20d2 | 1083 | NAME (aout, new_section_hook) (bfd *abfd, asection *newsect) |
e135f41b | 1084 | { |
116c20d2 | 1085 | /* Align to double at least. */ |
e135f41b NC |
1086 | newsect->alignment_power = bfd_get_arch_info(abfd)->section_align_power; |
1087 | ||
e135f41b NC |
1088 | if (bfd_get_format (abfd) == bfd_object) |
1089 | { | |
1090 | if (obj_textsec (abfd) == NULL | |
f592407e | 1091 | && !strcmp (newsect->name, ".text")) |
e135f41b NC |
1092 | { |
1093 | obj_textsec(abfd)= newsect; | |
1094 | newsect->target_index = N_TEXT; | |
e135f41b | 1095 | } |
f592407e AM |
1096 | else if (obj_datasec (abfd) == NULL |
1097 | && !strcmp (newsect->name, ".data")) | |
1098 | { | |
1099 | obj_datasec (abfd) = newsect; | |
1100 | newsect->target_index = N_DATA; | |
1101 | } | |
1102 | else if (obj_bsssec (abfd) == NULL | |
1103 | && !strcmp (newsect->name, ".bss")) | |
1104 | { | |
1105 | obj_bsssec (abfd) = newsect; | |
1106 | newsect->target_index = N_BSS; | |
1107 | } | |
1108 | } | |
e135f41b | 1109 | |
116c20d2 | 1110 | /* We allow more than three sections internally. */ |
f592407e | 1111 | return _bfd_generic_new_section_hook (abfd, newsect); |
e135f41b NC |
1112 | } |
1113 | ||
b34976b6 | 1114 | bfd_boolean |
116c20d2 NC |
1115 | NAME (aout, set_section_contents) (bfd *abfd, |
1116 | sec_ptr section, | |
1117 | const void * location, | |
1118 | file_ptr offset, | |
1119 | bfd_size_type count) | |
e135f41b | 1120 | { |
e135f41b NC |
1121 | if (! abfd->output_has_begun) |
1122 | { | |
3a8c4a5b | 1123 | if (! NAME (aout, adjust_sizes_and_vmas) (abfd)) |
b34976b6 | 1124 | return FALSE; |
e135f41b NC |
1125 | } |
1126 | ||
1127 | if (section == obj_bsssec (abfd)) | |
1128 | { | |
1129 | bfd_set_error (bfd_error_no_contents); | |
b34976b6 | 1130 | return FALSE; |
e135f41b NC |
1131 | } |
1132 | ||
1133 | if (section != obj_textsec (abfd) | |
1134 | && section != obj_datasec (abfd)) | |
1135 | { | |
4eca0228 | 1136 | _bfd_error_handler |
695344c0 | 1137 | /* xgettext:c-format */ |
871b3ab2 | 1138 | (_("%pB: can not represent section `%pA' in a.out object file format"), |
dae82561 | 1139 | abfd, section); |
e135f41b | 1140 | bfd_set_error (bfd_error_nonrepresentable_section); |
b34976b6 | 1141 | return FALSE; |
e135f41b NC |
1142 | } |
1143 | ||
1144 | if (count != 0) | |
1145 | { | |
1146 | if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0 | |
dc810e39 | 1147 | || bfd_bwrite (location, count, abfd) != count) |
b34976b6 | 1148 | return FALSE; |
3ad797fd NC |
1149 | |
1150 | /* If necessary, pad the section to its aligned size. */ | |
1151 | if ((section == obj_datasec (abfd) | |
1152 | || section == obj_textsec (abfd)) | |
1153 | && count < section->size | |
1154 | && (bfd_seek (abfd, section->filepos + offset + section->size - 1, SEEK_SET) != 0 | |
1155 | || bfd_bwrite ("", 1, abfd) != 1)) | |
1156 | return FALSE; | |
e135f41b NC |
1157 | } |
1158 | ||
b34976b6 | 1159 | return TRUE; |
e135f41b NC |
1160 | } |
1161 | \f | |
1162 | /* Read the external symbols from an a.out file. */ | |
1163 | ||
b34976b6 | 1164 | static bfd_boolean |
116c20d2 | 1165 | aout_get_external_symbols (bfd *abfd) |
e135f41b | 1166 | { |
116c20d2 | 1167 | if (obj_aout_external_syms (abfd) == NULL) |
e135f41b NC |
1168 | { |
1169 | bfd_size_type count; | |
1170 | struct external_nlist *syms; | |
1171 | ||
1172 | count = exec_hdr (abfd)->a_syms / EXTERNAL_NLIST_SIZE; | |
1173 | ||
37e3922e NC |
1174 | /* PR 17512: file: 011f5a08. */ |
1175 | if (count == 0) | |
49987e5c NC |
1176 | { |
1177 | obj_aout_external_syms (abfd) = NULL; | |
1178 | obj_aout_external_sym_count (abfd) = count; | |
1179 | return TRUE; | |
1180 | } | |
1181 | ||
e135f41b | 1182 | #ifdef USE_MMAP |
82e51918 AM |
1183 | if (! bfd_get_file_window (abfd, obj_sym_filepos (abfd), |
1184 | exec_hdr (abfd)->a_syms, | |
b34976b6 AM |
1185 | &obj_aout_sym_window (abfd), TRUE)) |
1186 | return FALSE; | |
e135f41b NC |
1187 | syms = (struct external_nlist *) obj_aout_sym_window (abfd).data; |
1188 | #else | |
1189 | /* We allocate using malloc to make the values easy to free | |
1190 | later on. If we put them on the objalloc it might not be | |
1191 | possible to free them. */ | |
116c20d2 NC |
1192 | syms = bfd_malloc (count * EXTERNAL_NLIST_SIZE); |
1193 | if (syms == NULL && count != 0) | |
b34976b6 | 1194 | return FALSE; |
e135f41b NC |
1195 | |
1196 | if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0 | |
dc810e39 | 1197 | || (bfd_bread (syms, exec_hdr (abfd)->a_syms, abfd) |
e135f41b NC |
1198 | != exec_hdr (abfd)->a_syms)) |
1199 | { | |
1200 | free (syms); | |
b34976b6 | 1201 | return FALSE; |
e135f41b NC |
1202 | } |
1203 | #endif | |
1204 | ||
1205 | obj_aout_external_syms (abfd) = syms; | |
1206 | obj_aout_external_sym_count (abfd) = count; | |
1207 | } | |
dc810e39 | 1208 | |
e135f41b NC |
1209 | if (obj_aout_external_strings (abfd) == NULL |
1210 | && exec_hdr (abfd)->a_syms != 0) | |
1211 | { | |
1212 | unsigned char string_chars[BYTES_IN_LONG]; | |
1213 | bfd_size_type stringsize; | |
1214 | char *strings; | |
1215 | ||
1216 | /* Get the size of the strings. */ | |
1217 | if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0 | |
116c20d2 | 1218 | || (bfd_bread ((void *) string_chars, (bfd_size_type) BYTES_IN_LONG, |
dc810e39 | 1219 | abfd) != BYTES_IN_LONG)) |
b34976b6 | 1220 | return FALSE; |
dc810e39 | 1221 | stringsize = H_GET_32 (abfd, string_chars); |
e135f41b NC |
1222 | |
1223 | #ifdef USE_MMAP | |
82e51918 | 1224 | if (! bfd_get_file_window (abfd, obj_str_filepos (abfd), stringsize, |
b34976b6 AM |
1225 | &obj_aout_string_window (abfd), TRUE)) |
1226 | return FALSE; | |
e135f41b NC |
1227 | strings = (char *) obj_aout_string_window (abfd).data; |
1228 | #else | |
116c20d2 | 1229 | strings = bfd_malloc (stringsize + 1); |
e135f41b | 1230 | if (strings == NULL) |
b34976b6 | 1231 | return FALSE; |
e135f41b NC |
1232 | |
1233 | /* Skip space for the string count in the buffer for convenience | |
1234 | when using indexes. */ | |
dc810e39 | 1235 | if (bfd_bread (strings + 4, stringsize - 4, abfd) != stringsize - 4) |
e135f41b NC |
1236 | { |
1237 | free (strings); | |
b34976b6 | 1238 | return FALSE; |
e135f41b NC |
1239 | } |
1240 | #endif | |
e135f41b NC |
1241 | /* Ensure that a zero index yields an empty string. */ |
1242 | strings[0] = '\0'; | |
1243 | ||
1244 | strings[stringsize - 1] = 0; | |
1245 | ||
1246 | obj_aout_external_strings (abfd) = strings; | |
1247 | obj_aout_external_string_size (abfd) = stringsize; | |
1248 | } | |
1249 | ||
b34976b6 | 1250 | return TRUE; |
e135f41b NC |
1251 | } |
1252 | ||
1253 | /* Translate an a.out symbol into a BFD symbol. The desc, other, type | |
1254 | and symbol->value fields of CACHE_PTR will be set from the a.out | |
1255 | nlist structure. This function is responsible for setting | |
1256 | symbol->flags and symbol->section, and adjusting symbol->value. */ | |
1257 | ||
b34976b6 | 1258 | static bfd_boolean |
116c20d2 NC |
1259 | translate_from_native_sym_flags (bfd *abfd, |
1260 | aout_symbol_type *cache_ptr) | |
e135f41b NC |
1261 | { |
1262 | flagword visible; | |
1263 | ||
1264 | if (cache_ptr->type == N_FN) | |
1265 | { | |
1266 | asection *sec; | |
1267 | ||
1268 | /* This is a debugging symbol. */ | |
e135f41b NC |
1269 | cache_ptr->symbol.flags = BSF_DEBUGGING; |
1270 | ||
1271 | /* Work out the symbol section. */ | |
1272 | switch (cache_ptr->type & N_TYPE) | |
1273 | { | |
1274 | case N_TEXT: | |
1275 | case N_FN: | |
1276 | sec = obj_textsec (abfd); | |
1277 | break; | |
1278 | case N_DATA: | |
1279 | sec = obj_datasec (abfd); | |
1280 | break; | |
1281 | case N_BSS: | |
1282 | sec = obj_bsssec (abfd); | |
1283 | break; | |
1284 | default: | |
1285 | case N_ABS: | |
1286 | sec = bfd_abs_section_ptr; | |
1287 | break; | |
1288 | } | |
1289 | ||
1290 | cache_ptr->symbol.section = sec; | |
1291 | cache_ptr->symbol.value -= sec->vma; | |
1292 | ||
b34976b6 | 1293 | return TRUE; |
e135f41b NC |
1294 | } |
1295 | ||
1296 | /* Get the default visibility. This does not apply to all types, so | |
1297 | we just hold it in a local variable to use if wanted. */ | |
1298 | if ((cache_ptr->type & N_EXT) == 0) | |
1299 | visible = BSF_LOCAL; | |
1300 | else | |
1301 | visible = BSF_GLOBAL; | |
1302 | ||
1303 | switch (cache_ptr->type) | |
1304 | { | |
1305 | default: | |
1306 | case N_ABS: case N_ABS | N_EXT: | |
1307 | cache_ptr->symbol.section = bfd_abs_section_ptr; | |
1308 | cache_ptr->symbol.flags = visible; | |
1309 | break; | |
1310 | ||
1311 | case N_UNDF | N_EXT: | |
1312 | if (cache_ptr->symbol.value != 0) | |
1313 | { | |
1314 | /* This is a common symbol. */ | |
1315 | cache_ptr->symbol.flags = BSF_GLOBAL; | |
1316 | cache_ptr->symbol.section = bfd_com_section_ptr; | |
1317 | } | |
1318 | else | |
1319 | { | |
1320 | cache_ptr->symbol.flags = 0; | |
1321 | cache_ptr->symbol.section = bfd_und_section_ptr; | |
1322 | } | |
1323 | break; | |
1324 | ||
1325 | case N_TEXT: case N_TEXT | N_EXT: | |
1326 | cache_ptr->symbol.section = obj_textsec (abfd); | |
1327 | cache_ptr->symbol.value -= cache_ptr->symbol.section->vma; | |
1328 | cache_ptr->symbol.flags = visible; | |
1329 | break; | |
1330 | ||
1331 | case N_DATA: case N_DATA | N_EXT: | |
1332 | cache_ptr->symbol.section = obj_datasec (abfd); | |
1333 | cache_ptr->symbol.value -= cache_ptr->symbol.section->vma; | |
1334 | cache_ptr->symbol.flags = visible; | |
1335 | break; | |
1336 | ||
1337 | case N_BSS: case N_BSS | N_EXT: | |
1338 | cache_ptr->symbol.section = obj_bsssec (abfd); | |
1339 | cache_ptr->symbol.value -= cache_ptr->symbol.section->vma; | |
1340 | cache_ptr->symbol.flags = visible; | |
1341 | break; | |
1342 | } | |
1343 | ||
b34976b6 | 1344 | return TRUE; |
e135f41b NC |
1345 | } |
1346 | ||
1347 | /* Set the fields of SYM_POINTER according to CACHE_PTR. */ | |
1348 | ||
b34976b6 | 1349 | static bfd_boolean |
116c20d2 NC |
1350 | translate_to_native_sym_flags (bfd *abfd, |
1351 | asymbol *cache_ptr, | |
1352 | struct external_nlist *sym_pointer) | |
e135f41b NC |
1353 | { |
1354 | bfd_vma value = cache_ptr->value; | |
1355 | asection *sec; | |
1356 | bfd_vma off; | |
1357 | ||
1358 | /* Mask out any existing type bits in case copying from one section | |
1359 | to another. */ | |
1360 | sym_pointer->e_type[0] &= ~N_TYPE; | |
1361 | ||
1362 | sec = bfd_get_section (cache_ptr); | |
1363 | off = 0; | |
1364 | ||
1365 | if (sec == NULL) | |
1366 | { | |
1367 | /* This case occurs, e.g., for the *DEBUG* section of a COFF | |
1368 | file. */ | |
4eca0228 | 1369 | _bfd_error_handler |
695344c0 | 1370 | /* xgettext:c-format */ |
871b3ab2 | 1371 | (_("%pB: can not represent section for symbol `%s' in a.out object file format"), |
d003868e | 1372 | abfd, cache_ptr->name != NULL ? cache_ptr->name : "*unknown*"); |
e135f41b | 1373 | bfd_set_error (bfd_error_nonrepresentable_section); |
b34976b6 | 1374 | return FALSE; |
e135f41b NC |
1375 | } |
1376 | ||
1377 | if (sec->output_section != NULL) | |
1378 | { | |
1379 | off = sec->output_offset; | |
1380 | sec = sec->output_section; | |
1381 | } | |
1382 | ||
1383 | if (bfd_is_abs_section (sec)) | |
1384 | sym_pointer->e_type[0] |= N_ABS; | |
1385 | else if (sec == obj_textsec (abfd)) | |
1386 | sym_pointer->e_type[0] |= N_TEXT; | |
1387 | else if (sec == obj_datasec (abfd)) | |
1388 | sym_pointer->e_type[0] |= N_DATA; | |
1389 | else if (sec == obj_bsssec (abfd)) | |
1390 | sym_pointer->e_type[0] |= N_BSS; | |
1391 | else if (bfd_is_und_section (sec)) | |
1392 | sym_pointer->e_type[0] = N_UNDF | N_EXT; | |
1393 | else if (bfd_is_com_section (sec)) | |
1394 | sym_pointer->e_type[0] = N_UNDF | N_EXT; | |
1395 | else | |
1396 | { | |
4eca0228 | 1397 | _bfd_error_handler |
695344c0 | 1398 | /* xgettext:c-format */ |
871b3ab2 | 1399 | (_("%pB: can not represent section `%pA' in a.out object file format"), |
d003868e | 1400 | abfd, sec); |
e135f41b | 1401 | bfd_set_error (bfd_error_nonrepresentable_section); |
b34976b6 | 1402 | return FALSE; |
e135f41b NC |
1403 | } |
1404 | ||
1405 | /* Turn the symbol from section relative to absolute again */ | |
1406 | value += sec->vma + off; | |
1407 | ||
1408 | if ((cache_ptr->flags & BSF_DEBUGGING) != 0) | |
1409 | sym_pointer->e_type[0] = ((aout_symbol_type *) cache_ptr)->type; | |
1410 | else if ((cache_ptr->flags & BSF_GLOBAL) != 0) | |
1411 | sym_pointer->e_type[0] |= N_EXT; | |
1412 | ||
e135f41b NC |
1413 | PUT_WORD(abfd, value, sym_pointer->e_value); |
1414 | ||
b34976b6 | 1415 | return TRUE; |
e135f41b NC |
1416 | } |
1417 | \f | |
1418 | /* Native-level interface to symbols. */ | |
1419 | ||
1420 | asymbol * | |
116c20d2 | 1421 | NAME (aout, make_empty_symbol) (bfd *abfd) |
e135f41b | 1422 | { |
dc810e39 | 1423 | bfd_size_type amt = sizeof (aout_symbol_type); |
d3ce72d0 | 1424 | aout_symbol_type *new_symbol_type = bfd_zalloc (abfd, amt); |
116c20d2 | 1425 | |
d3ce72d0 | 1426 | if (!new_symbol_type) |
e135f41b | 1427 | return NULL; |
d3ce72d0 | 1428 | new_symbol_type->symbol.the_bfd = abfd; |
e135f41b | 1429 | |
d3ce72d0 | 1430 | return &new_symbol_type->symbol; |
e135f41b NC |
1431 | } |
1432 | ||
1433 | /* Translate a set of internal symbols into external symbols. */ | |
1434 | ||
b34976b6 | 1435 | bfd_boolean |
116c20d2 NC |
1436 | NAME (aout, translate_symbol_table) (bfd *abfd, |
1437 | aout_symbol_type *in, | |
1438 | struct external_nlist *ext, | |
1439 | bfd_size_type count, | |
1440 | char *str, | |
1441 | bfd_size_type strsize, | |
1442 | bfd_boolean dynamic) | |
e135f41b NC |
1443 | { |
1444 | struct external_nlist *ext_end; | |
1445 | ||
1446 | ext_end = ext + count; | |
1447 | for (; ext < ext_end; ext++, in++) | |
1448 | { | |
1449 | bfd_vma x; | |
1450 | ||
1451 | x = GET_WORD (abfd, ext->e_strx); | |
1452 | in->symbol.the_bfd = abfd; | |
1453 | ||
1454 | /* For the normal symbols, the zero index points at the number | |
1455 | of bytes in the string table but is to be interpreted as the | |
1456 | null string. For the dynamic symbols, the number of bytes in | |
1457 | the string table is stored in the __DYNAMIC structure and the | |
1458 | zero index points at an actual string. */ | |
1459 | if (x == 0 && ! dynamic) | |
1460 | in->symbol.name = ""; | |
1461 | else if (x < strsize) | |
1462 | in->symbol.name = str + x; | |
1463 | else | |
b34976b6 | 1464 | return FALSE; |
e135f41b NC |
1465 | |
1466 | in->symbol.value = GET_SWORD (abfd, ext->e_value); | |
116c20d2 | 1467 | /* TODO: is 0 a safe value here? */ |
e135f41b NC |
1468 | in->desc = 0; |
1469 | in->other = 0; | |
dc810e39 | 1470 | in->type = H_GET_8 (abfd, ext->e_type); |
e135f41b NC |
1471 | in->symbol.udata.p = NULL; |
1472 | ||
1473 | if (! translate_from_native_sym_flags (abfd, in)) | |
b34976b6 | 1474 | return FALSE; |
e135f41b NC |
1475 | |
1476 | if (dynamic) | |
1477 | in->symbol.flags |= BSF_DYNAMIC; | |
1478 | } | |
1479 | ||
b34976b6 | 1480 | return TRUE; |
e135f41b NC |
1481 | } |
1482 | ||
1483 | /* We read the symbols into a buffer, which is discarded when this | |
1484 | function exits. We read the strings into a buffer large enough to | |
116c20d2 | 1485 | hold them all plus all the cached symbol entries. */ |
e135f41b | 1486 | |
b34976b6 | 1487 | bfd_boolean |
116c20d2 | 1488 | NAME (aout, slurp_symbol_table) (bfd *abfd) |
e135f41b NC |
1489 | { |
1490 | struct external_nlist *old_external_syms; | |
1491 | aout_symbol_type *cached; | |
dc810e39 | 1492 | bfd_size_type cached_size; |
e135f41b | 1493 | |
116c20d2 NC |
1494 | /* If there's no work to be done, don't do any. */ |
1495 | if (obj_aout_symbols (abfd) != NULL) | |
b34976b6 | 1496 | return TRUE; |
e135f41b NC |
1497 | |
1498 | old_external_syms = obj_aout_external_syms (abfd); | |
1499 | ||
1500 | if (! aout_get_external_symbols (abfd)) | |
b34976b6 | 1501 | return FALSE; |
e135f41b | 1502 | |
dc810e39 AM |
1503 | cached_size = obj_aout_external_sym_count (abfd); |
1504 | cached_size *= sizeof (aout_symbol_type); | |
116c20d2 | 1505 | cached = bfd_zmalloc (cached_size); |
e135f41b | 1506 | if (cached == NULL && cached_size != 0) |
b34976b6 | 1507 | return FALSE; |
e135f41b NC |
1508 | |
1509 | /* Convert from external symbol information to internal. */ | |
116c20d2 | 1510 | if (! (NAME (aout, translate_symbol_table) |
e135f41b NC |
1511 | (abfd, cached, |
1512 | obj_aout_external_syms (abfd), | |
1513 | obj_aout_external_sym_count (abfd), | |
1514 | obj_aout_external_strings (abfd), | |
1515 | obj_aout_external_string_size (abfd), | |
b34976b6 | 1516 | FALSE))) |
e135f41b NC |
1517 | { |
1518 | free (cached); | |
b34976b6 | 1519 | return FALSE; |
e135f41b NC |
1520 | } |
1521 | ||
1522 | bfd_get_symcount (abfd) = obj_aout_external_sym_count (abfd); | |
1523 | ||
1524 | obj_aout_symbols (abfd) = cached; | |
1525 | ||
1526 | /* It is very likely that anybody who calls this function will not | |
1527 | want the external symbol information, so if it was allocated | |
1528 | because of our call to aout_get_external_symbols, we free it up | |
1529 | right away to save space. */ | |
116c20d2 NC |
1530 | if (old_external_syms == NULL |
1531 | && obj_aout_external_syms (abfd) != NULL) | |
e135f41b NC |
1532 | { |
1533 | #ifdef USE_MMAP | |
1534 | bfd_free_window (&obj_aout_sym_window (abfd)); | |
1535 | #else | |
1536 | free (obj_aout_external_syms (abfd)); | |
1537 | #endif | |
1538 | obj_aout_external_syms (abfd) = NULL; | |
1539 | } | |
1540 | ||
b34976b6 | 1541 | return TRUE; |
e135f41b NC |
1542 | } |
1543 | \f | |
1544 | /* We use a hash table when writing out symbols so that we only write | |
1545 | out a particular string once. This helps particularly when the | |
1546 | linker writes out stabs debugging entries, because each different | |
1547 | contributing object file tends to have many duplicate stabs | |
1548 | strings. | |
1549 | ||
1550 | This hash table code breaks dbx on SunOS 4.1.3, so we don't do it | |
1551 | if BFD_TRADITIONAL_FORMAT is set. */ | |
1552 | ||
e135f41b NC |
1553 | /* Get the index of a string in a strtab, adding it if it is not |
1554 | already present. */ | |
1555 | ||
1556 | static INLINE bfd_size_type | |
116c20d2 NC |
1557 | add_to_stringtab (bfd *abfd, |
1558 | struct bfd_strtab_hash *tab, | |
1559 | const char *str, | |
1560 | bfd_boolean copy) | |
e135f41b | 1561 | { |
b34976b6 | 1562 | bfd_boolean hash; |
91d6fa6a | 1563 | bfd_size_type str_index; |
e135f41b NC |
1564 | |
1565 | /* An index of 0 always means the empty string. */ | |
1566 | if (str == 0 || *str == '\0') | |
1567 | return 0; | |
1568 | ||
1569 | /* Don't hash if BFD_TRADITIONAL_FORMAT is set, because SunOS dbx | |
1570 | doesn't understand a hashed string table. */ | |
b34976b6 | 1571 | hash = TRUE; |
e135f41b | 1572 | if ((abfd->flags & BFD_TRADITIONAL_FORMAT) != 0) |
b34976b6 | 1573 | hash = FALSE; |
e135f41b | 1574 | |
91d6fa6a | 1575 | str_index = _bfd_stringtab_add (tab, str, hash, copy); |
e135f41b | 1576 | |
91d6fa6a | 1577 | if (str_index != (bfd_size_type) -1) |
116c20d2 NC |
1578 | /* Add BYTES_IN_LONG to the return value to account for the |
1579 | space taken up by the string table size. */ | |
91d6fa6a | 1580 | str_index += BYTES_IN_LONG; |
e135f41b | 1581 | |
91d6fa6a | 1582 | return str_index; |
e135f41b NC |
1583 | } |
1584 | ||
1585 | /* Write out a strtab. ABFD is already at the right location in the | |
1586 | file. */ | |
1587 | ||
b34976b6 | 1588 | static bfd_boolean |
116c20d2 | 1589 | emit_stringtab (bfd *abfd, struct bfd_strtab_hash *tab) |
e135f41b NC |
1590 | { |
1591 | bfd_byte buffer[BYTES_IN_LONG]; | |
1592 | ||
1593 | /* The string table starts with the size. */ | |
dc810e39 | 1594 | H_PUT_32 (abfd, _bfd_stringtab_size (tab) + BYTES_IN_LONG, buffer); |
116c20d2 | 1595 | if (bfd_bwrite ((void *) buffer, (bfd_size_type) BYTES_IN_LONG, abfd) |
dc810e39 | 1596 | != BYTES_IN_LONG) |
b34976b6 | 1597 | return FALSE; |
e135f41b NC |
1598 | |
1599 | return _bfd_stringtab_emit (abfd, tab); | |
1600 | } | |
1601 | \f | |
b34976b6 | 1602 | bfd_boolean |
116c20d2 | 1603 | NAME (aout, write_syms) (bfd *abfd) |
e135f41b NC |
1604 | { |
1605 | unsigned int count ; | |
1606 | asymbol **generic = bfd_get_outsymbols (abfd); | |
1607 | struct bfd_strtab_hash *strtab; | |
1608 | ||
1609 | strtab = _bfd_stringtab_init (); | |
1610 | if (strtab == NULL) | |
b34976b6 | 1611 | return FALSE; |
e135f41b NC |
1612 | |
1613 | for (count = 0; count < bfd_get_symcount (abfd); count++) | |
1614 | { | |
1615 | asymbol *g = generic[count]; | |
1616 | bfd_size_type indx; | |
1617 | struct external_nlist nsp; | |
1618 | ||
dc810e39 | 1619 | PUT_WORD (abfd, 0, nsp.e_unused); |
e135f41b | 1620 | |
b34976b6 | 1621 | indx = add_to_stringtab (abfd, strtab, g->name, FALSE); |
e135f41b NC |
1622 | if (indx == (bfd_size_type) -1) |
1623 | goto error_return; | |
dc810e39 | 1624 | PUT_WORD (abfd, indx, nsp.e_strx); |
e135f41b NC |
1625 | |
1626 | if (bfd_asymbol_flavour(g) == abfd->xvec->flavour) | |
dc810e39 | 1627 | H_PUT_8 (abfd, aout_symbol(g)->type, nsp.e_type); |
e135f41b | 1628 | else |
dc810e39 | 1629 | H_PUT_8 (abfd, 0, nsp.e_type); |
e135f41b NC |
1630 | |
1631 | if (! translate_to_native_sym_flags (abfd, g, &nsp)) | |
1632 | goto error_return; | |
1633 | ||
dc810e39 | 1634 | H_PUT_8 (abfd, 0, nsp.e_ovly); |
e135f41b | 1635 | |
116c20d2 | 1636 | if (bfd_bwrite ((void *)&nsp, (bfd_size_type) EXTERNAL_NLIST_SIZE, abfd) |
e135f41b NC |
1637 | != EXTERNAL_NLIST_SIZE) |
1638 | goto error_return; | |
1639 | ||
1640 | /* NB: `KEEPIT' currently overlays `udata.p', so set this only | |
1641 | here, at the end. */ | |
1642 | g->KEEPIT = count; | |
1643 | } | |
1644 | ||
1645 | if (! emit_stringtab (abfd, strtab)) | |
1646 | goto error_return; | |
1647 | ||
1648 | _bfd_stringtab_free (strtab); | |
1649 | ||
b34976b6 | 1650 | return TRUE; |
e135f41b NC |
1651 | |
1652 | error_return: | |
1653 | _bfd_stringtab_free (strtab); | |
b34976b6 | 1654 | return FALSE; |
e135f41b NC |
1655 | } |
1656 | ||
1657 | \f | |
1658 | long | |
116c20d2 | 1659 | NAME (aout, canonicalize_symtab) (bfd *abfd, asymbol **location) |
e135f41b | 1660 | { |
116c20d2 NC |
1661 | unsigned int counter = 0; |
1662 | aout_symbol_type *symbase; | |
e135f41b | 1663 | |
116c20d2 NC |
1664 | if (!NAME (aout, slurp_symbol_table) (abfd)) |
1665 | return -1; | |
e135f41b | 1666 | |
116c20d2 NC |
1667 | for (symbase = obj_aout_symbols (abfd); counter++ < bfd_get_symcount (abfd);) |
1668 | *(location++) = (asymbol *)(symbase++); | |
1669 | *location++ =0; | |
1670 | return bfd_get_symcount (abfd); | |
e135f41b NC |
1671 | } |
1672 | ||
1673 | \f | |
116c20d2 | 1674 | /* Output extended relocation information to a file in target byte order. */ |
e135f41b | 1675 | |
116c20d2 NC |
1676 | static void |
1677 | pdp11_aout_swap_reloc_out (bfd *abfd, arelent *g, bfd_byte *natptr) | |
e135f41b NC |
1678 | { |
1679 | int r_index; | |
1680 | int r_pcrel; | |
1681 | int reloc_entry; | |
1682 | int r_type; | |
1683 | asymbol *sym = *(g->sym_ptr_ptr); | |
1684 | asection *output_section = sym->section->output_section; | |
1685 | ||
1686 | if (g->addend != 0) | |
1687 | fprintf (stderr, "BFD: can't do this reloc addend stuff\n"); | |
1688 | ||
1689 | r_pcrel = g->howto->pc_relative; | |
1690 | ||
1691 | if (bfd_is_abs_section (output_section)) | |
1692 | r_type = RABS; | |
1693 | else if (output_section == obj_textsec (abfd)) | |
1694 | r_type = RTEXT; | |
1695 | else if (output_section == obj_datasec (abfd)) | |
1696 | r_type = RDATA; | |
1697 | else if (output_section == obj_bsssec (abfd)) | |
1698 | r_type = RBSS; | |
1699 | else if (bfd_is_und_section (output_section)) | |
1700 | r_type = REXT; | |
1701 | else if (bfd_is_com_section (output_section)) | |
1702 | r_type = REXT; | |
1703 | else | |
1704 | r_type = -1; | |
1705 | ||
1706 | BFD_ASSERT (r_type != -1); | |
1707 | ||
1708 | if (r_type == RABS) | |
1709 | r_index = 0; | |
1710 | else | |
1711 | r_index = (*(g->sym_ptr_ptr))->KEEPIT; | |
1712 | ||
e135f41b NC |
1713 | reloc_entry = r_index << 4 | r_type | r_pcrel; |
1714 | ||
9dadfa79 | 1715 | PUT_WORD (abfd, reloc_entry, natptr); |
e135f41b NC |
1716 | } |
1717 | ||
1718 | /* BFD deals internally with all things based from the section they're | |
1719 | in. so, something in 10 bytes into a text section with a base of | |
1720 | 50 would have a symbol (.text+10) and know .text vma was 50. | |
1721 | ||
1722 | Aout keeps all it's symbols based from zero, so the symbol would | |
1723 | contain 60. This macro subs the base of each section from the value | |
1724 | to give the true offset from the section */ | |
1725 | ||
1726 | ||
07d6d2b8 AM |
1727 | #define MOVE_ADDRESS(ad) \ |
1728 | if (r_extern) \ | |
e135f41b NC |
1729 | { \ |
1730 | /* Undefined symbol. */ \ | |
1731 | cache_ptr->sym_ptr_ptr = symbols + r_index; \ | |
1732 | cache_ptr->addend = ad; \ | |
1733 | } \ | |
1734 | else \ | |
1735 | { \ | |
07d6d2b8 | 1736 | /* Defined, section relative. replace symbol with pointer to \ |
e135f41b NC |
1737 | symbol which points to section. */ \ |
1738 | switch (r_index) \ | |
1739 | { \ | |
1740 | case N_TEXT: \ | |
1741 | case N_TEXT | N_EXT: \ | |
1742 | cache_ptr->sym_ptr_ptr = obj_textsec (abfd)->symbol_ptr_ptr; \ | |
1743 | cache_ptr->addend = ad - su->textsec->vma; \ | |
1744 | break; \ | |
1745 | case N_DATA: \ | |
1746 | case N_DATA | N_EXT: \ | |
1747 | cache_ptr->sym_ptr_ptr = obj_datasec (abfd)->symbol_ptr_ptr; \ | |
1748 | cache_ptr->addend = ad - su->datasec->vma; \ | |
1749 | break; \ | |
1750 | case N_BSS: \ | |
1751 | case N_BSS | N_EXT: \ | |
1752 | cache_ptr->sym_ptr_ptr = obj_bsssec (abfd)->symbol_ptr_ptr; \ | |
1753 | cache_ptr->addend = ad - su->bsssec->vma; \ | |
1754 | break; \ | |
1755 | default: \ | |
1756 | case N_ABS: \ | |
1757 | case N_ABS | N_EXT: \ | |
1758 | cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; \ | |
1759 | cache_ptr->addend = ad; \ | |
1760 | break; \ | |
1761 | } \ | |
dc810e39 | 1762 | } |
e135f41b | 1763 | |
116c20d2 | 1764 | static void |
07d6d2b8 AM |
1765 | pdp11_aout_swap_reloc_in (bfd * abfd, |
1766 | bfd_byte * bytes, | |
1767 | arelent * cache_ptr, | |
1768 | bfd_size_type offset, | |
1769 | asymbol ** symbols, | |
1770 | bfd_size_type symcount) | |
e135f41b NC |
1771 | { |
1772 | struct aoutdata *su = &(abfd->tdata.aout_data->a); | |
1773 | unsigned int r_index; | |
1774 | int reloc_entry; | |
1775 | int r_extern; | |
1776 | int r_pcrel; | |
1777 | ||
116c20d2 | 1778 | reloc_entry = GET_WORD (abfd, (void *) bytes); |
e135f41b NC |
1779 | |
1780 | r_pcrel = reloc_entry & RELFLG; | |
1781 | ||
1782 | cache_ptr->address = offset; | |
1783 | cache_ptr->howto = howto_table_pdp11 + (r_pcrel ? 1 : 0); | |
1784 | ||
1785 | if ((reloc_entry & RTYPE) == RABS) | |
1786 | r_index = N_ABS; | |
1787 | else | |
1788 | r_index = RINDEX (reloc_entry); | |
1789 | ||
1790 | /* r_extern reflects whether the symbol the reloc is against is | |
1791 | local or global. */ | |
1792 | r_extern = (reloc_entry & RTYPE) == REXT; | |
1793 | ||
1794 | if (r_extern && r_index > symcount) | |
1795 | { | |
1796 | /* We could arrange to return an error, but it might be useful | |
07d6d2b8 | 1797 | to see the file even if it is bad. */ |
e135f41b NC |
1798 | r_extern = 0; |
1799 | r_index = N_ABS; | |
1800 | } | |
1801 | ||
1802 | MOVE_ADDRESS(0); | |
1803 | } | |
1804 | ||
1805 | /* Read and swap the relocs for a section. */ | |
1806 | ||
b34976b6 | 1807 | bfd_boolean |
116c20d2 | 1808 | NAME (aout, slurp_reloc_table) (bfd *abfd, sec_ptr asect, asymbol **symbols) |
e135f41b | 1809 | { |
9dadfa79 | 1810 | bfd_byte *rptr; |
dc810e39 | 1811 | bfd_size_type count; |
e135f41b | 1812 | bfd_size_type reloc_size; |
116c20d2 | 1813 | void * relocs; |
e135f41b NC |
1814 | arelent *reloc_cache; |
1815 | size_t each_size; | |
1816 | unsigned int counter = 0; | |
1817 | arelent *cache_ptr; | |
1818 | ||
1819 | if (asect->relocation) | |
b34976b6 | 1820 | return TRUE; |
e135f41b NC |
1821 | |
1822 | if (asect->flags & SEC_CONSTRUCTOR) | |
b34976b6 | 1823 | return TRUE; |
e135f41b NC |
1824 | |
1825 | if (asect == obj_datasec (abfd)) | |
1826 | reloc_size = exec_hdr(abfd)->a_drsize; | |
1827 | else if (asect == obj_textsec (abfd)) | |
1828 | reloc_size = exec_hdr(abfd)->a_trsize; | |
1829 | else if (asect == obj_bsssec (abfd)) | |
1830 | reloc_size = 0; | |
1831 | else | |
1832 | { | |
1833 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 1834 | return FALSE; |
e135f41b NC |
1835 | } |
1836 | ||
1837 | if (bfd_seek (abfd, asect->rel_filepos, SEEK_SET) != 0) | |
b34976b6 | 1838 | return FALSE; |
e135f41b NC |
1839 | |
1840 | each_size = obj_reloc_entry_size (abfd); | |
1841 | ||
dc810e39 | 1842 | relocs = bfd_malloc (reloc_size); |
e135f41b | 1843 | if (relocs == NULL && reloc_size != 0) |
b34976b6 | 1844 | return FALSE; |
e135f41b | 1845 | |
dc810e39 | 1846 | if (bfd_bread (relocs, reloc_size, abfd) != reloc_size) |
e135f41b NC |
1847 | { |
1848 | free (relocs); | |
b34976b6 | 1849 | return FALSE; |
e135f41b NC |
1850 | } |
1851 | ||
1852 | count = reloc_size / each_size; | |
1853 | ||
116c20d2 | 1854 | /* Count the number of NON-ZERO relocs, this is the count we want. */ |
e135f41b NC |
1855 | { |
1856 | unsigned int real_count = 0; | |
1857 | ||
1858 | for (counter = 0; counter < count; counter++) | |
1859 | { | |
1860 | int x; | |
1861 | ||
973ffd63 | 1862 | x = GET_WORD (abfd, (char *) relocs + each_size * counter); |
e135f41b NC |
1863 | if (x != 0) |
1864 | real_count++; | |
1865 | } | |
1866 | ||
1867 | count = real_count; | |
1868 | } | |
1869 | ||
116c20d2 | 1870 | reloc_cache = bfd_zmalloc (count * sizeof (arelent)); |
e135f41b | 1871 | if (reloc_cache == NULL && count != 0) |
b34976b6 | 1872 | return FALSE; |
e135f41b NC |
1873 | |
1874 | cache_ptr = reloc_cache; | |
1875 | ||
9dadfa79 | 1876 | rptr = relocs; |
e135f41b NC |
1877 | for (counter = 0; |
1878 | counter < count; | |
9dadfa79 | 1879 | counter++, rptr += RELOC_SIZE, cache_ptr++) |
e135f41b | 1880 | { |
116c20d2 | 1881 | while (GET_WORD (abfd, (void *) rptr) == 0) |
e135f41b | 1882 | { |
9dadfa79 | 1883 | rptr += RELOC_SIZE; |
dc810e39 | 1884 | if ((char *) rptr >= (char *) relocs + reloc_size) |
e135f41b NC |
1885 | goto done; |
1886 | } | |
1887 | ||
1888 | pdp11_aout_swap_reloc_in (abfd, rptr, cache_ptr, | |
dc810e39 AM |
1889 | (bfd_size_type) ((char *) rptr - (char *) relocs), |
1890 | symbols, | |
1891 | (bfd_size_type) bfd_get_symcount (abfd)); | |
e135f41b NC |
1892 | } |
1893 | done: | |
1894 | /* Just in case, if rptr >= relocs + reloc_size should happen | |
116c20d2 | 1895 | too early. */ |
e135f41b NC |
1896 | BFD_ASSERT (counter == count); |
1897 | ||
1898 | free (relocs); | |
1899 | ||
1900 | asect->relocation = reloc_cache; | |
1901 | asect->reloc_count = cache_ptr - reloc_cache; | |
1902 | ||
b34976b6 | 1903 | return TRUE; |
e135f41b NC |
1904 | } |
1905 | ||
1906 | /* Write out a relocation section into an object file. */ | |
1907 | ||
b34976b6 | 1908 | bfd_boolean |
116c20d2 | 1909 | NAME (aout, squirt_out_relocs) (bfd *abfd, asection *section) |
e135f41b NC |
1910 | { |
1911 | arelent **generic; | |
1912 | unsigned char *native; | |
1913 | unsigned int count = section->reloc_count; | |
dc810e39 | 1914 | bfd_size_type natsize; |
e135f41b | 1915 | |
eea6121a | 1916 | natsize = section->size; |
116c20d2 | 1917 | native = bfd_zalloc (abfd, natsize); |
e135f41b | 1918 | if (!native) |
b34976b6 | 1919 | return FALSE; |
e135f41b | 1920 | |
e135f41b NC |
1921 | generic = section->orelocation; |
1922 | if (generic != NULL) | |
1923 | { | |
1924 | while (count > 0) | |
1925 | { | |
9dadfa79 | 1926 | bfd_byte *r; |
e135f41b | 1927 | |
9dadfa79 | 1928 | r = native + (*generic)->address; |
e135f41b NC |
1929 | pdp11_aout_swap_reloc_out (abfd, *generic, r); |
1930 | count--; | |
1931 | generic++; | |
1932 | } | |
1933 | } | |
1934 | ||
116c20d2 | 1935 | if (bfd_bwrite ((void *) native, natsize, abfd) != natsize) |
e135f41b | 1936 | { |
dc810e39 | 1937 | bfd_release (abfd, native); |
b34976b6 | 1938 | return FALSE; |
e135f41b NC |
1939 | } |
1940 | ||
1941 | bfd_release (abfd, native); | |
b34976b6 | 1942 | return TRUE; |
e135f41b NC |
1943 | } |
1944 | ||
116c20d2 NC |
1945 | /* This is stupid. This function should be a boolean predicate. */ |
1946 | ||
e135f41b | 1947 | long |
116c20d2 NC |
1948 | NAME (aout, canonicalize_reloc) (bfd *abfd, |
1949 | sec_ptr section, | |
1950 | arelent **relptr, | |
1951 | asymbol **symbols) | |
e135f41b NC |
1952 | { |
1953 | arelent *tblptr = section->relocation; | |
1954 | unsigned int count; | |
1955 | ||
1956 | if (section == obj_bsssec (abfd)) | |
1957 | { | |
1958 | *relptr = NULL; | |
1959 | return 0; | |
1960 | } | |
1961 | ||
116c20d2 | 1962 | if (!(tblptr || NAME (aout, slurp_reloc_table)(abfd, section, symbols))) |
e135f41b NC |
1963 | return -1; |
1964 | ||
1965 | if (section->flags & SEC_CONSTRUCTOR) | |
1966 | { | |
1967 | arelent_chain *chain = section->constructor_chain; | |
1968 | ||
1969 | for (count = 0; count < section->reloc_count; count ++) | |
1970 | { | |
1971 | *relptr ++ = &chain->relent; | |
1972 | chain = chain->next; | |
1973 | } | |
1974 | } | |
1975 | else | |
1976 | { | |
1977 | tblptr = section->relocation; | |
1978 | ||
1979 | for (count = 0; count++ < section->reloc_count;) | |
1980 | *relptr++ = tblptr++; | |
1981 | } | |
1982 | ||
1983 | *relptr = 0; | |
1984 | ||
1985 | return section->reloc_count; | |
1986 | } | |
1987 | ||
1988 | long | |
116c20d2 | 1989 | NAME (aout, get_reloc_upper_bound) (bfd *abfd, sec_ptr asect) |
e135f41b NC |
1990 | { |
1991 | if (bfd_get_format (abfd) != bfd_object) | |
1992 | { | |
1993 | bfd_set_error (bfd_error_invalid_operation); | |
1994 | return -1; | |
1995 | } | |
1996 | ||
dc810e39 | 1997 | if (asect->flags & SEC_CONSTRUCTOR) |
116c20d2 | 1998 | return (sizeof (arelent *) * (asect->reloc_count + 1)); |
e135f41b NC |
1999 | |
2000 | if (asect == obj_datasec (abfd)) | |
2001 | return (sizeof (arelent *) | |
116c20d2 | 2002 | * ((exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd)) |
e135f41b NC |
2003 | + 1)); |
2004 | ||
2005 | if (asect == obj_textsec (abfd)) | |
2006 | return (sizeof (arelent *) | |
116c20d2 | 2007 | * ((exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd)) |
e135f41b NC |
2008 | + 1)); |
2009 | ||
2010 | /* TODO: why are there two if statements for obj_bsssec()? */ | |
2011 | ||
2012 | if (asect == obj_bsssec (abfd)) | |
2013 | return sizeof (arelent *); | |
2014 | ||
2015 | if (asect == obj_bsssec (abfd)) | |
2016 | return 0; | |
2017 | ||
2018 | bfd_set_error (bfd_error_invalid_operation); | |
2019 | return -1; | |
2020 | } | |
2021 | ||
2022 | \f | |
2023 | long | |
116c20d2 | 2024 | NAME (aout, get_symtab_upper_bound) (bfd *abfd) |
e135f41b | 2025 | { |
116c20d2 | 2026 | if (!NAME (aout, slurp_symbol_table) (abfd)) |
e135f41b NC |
2027 | return -1; |
2028 | ||
2029 | return (bfd_get_symcount (abfd) + 1) * (sizeof (aout_symbol_type *)); | |
2030 | } | |
2031 | ||
2032 | alent * | |
116c20d2 NC |
2033 | NAME (aout, get_lineno) (bfd * abfd ATTRIBUTE_UNUSED, |
2034 | asymbol * symbol ATTRIBUTE_UNUSED) | |
e135f41b | 2035 | { |
116c20d2 | 2036 | return NULL; |
e135f41b NC |
2037 | } |
2038 | ||
2039 | void | |
116c20d2 NC |
2040 | NAME (aout, get_symbol_info) (bfd * abfd ATTRIBUTE_UNUSED, |
2041 | asymbol *symbol, | |
2042 | symbol_info *ret) | |
e135f41b NC |
2043 | { |
2044 | bfd_symbol_info (symbol, ret); | |
2045 | ||
2046 | if (ret->type == '?') | |
2047 | { | |
2048 | int type_code = aout_symbol(symbol)->type & 0xff; | |
2049 | const char *stab_name = bfd_get_stab_name (type_code); | |
2050 | static char buf[10]; | |
2051 | ||
2052 | if (stab_name == NULL) | |
2053 | { | |
2054 | sprintf(buf, "(%d)", type_code); | |
2055 | stab_name = buf; | |
2056 | } | |
2057 | ret->type = '-'; | |
116c20d2 NC |
2058 | ret->stab_type = type_code; |
2059 | ret->stab_other = (unsigned) (aout_symbol(symbol)->other & 0xff); | |
2060 | ret->stab_desc = (unsigned) (aout_symbol(symbol)->desc & 0xffff); | |
2061 | ret->stab_name = stab_name; | |
e135f41b NC |
2062 | } |
2063 | } | |
2064 | ||
e135f41b | 2065 | void |
116c20d2 NC |
2066 | NAME (aout, print_symbol) (bfd * abfd, |
2067 | void * afile, | |
2068 | asymbol *symbol, | |
2069 | bfd_print_symbol_type how) | |
e135f41b | 2070 | { |
116c20d2 | 2071 | FILE *file = (FILE *) afile; |
e135f41b NC |
2072 | |
2073 | switch (how) | |
2074 | { | |
2075 | case bfd_print_symbol_name: | |
2076 | if (symbol->name) | |
2077 | fprintf(file,"%s", symbol->name); | |
2078 | break; | |
2079 | case bfd_print_symbol_more: | |
116c20d2 NC |
2080 | fprintf(file,"%4x %2x %2x", |
2081 | (unsigned) (aout_symbol (symbol)->desc & 0xffff), | |
2082 | (unsigned) (aout_symbol (symbol)->other & 0xff), | |
2083 | (unsigned) (aout_symbol (symbol)->type)); | |
e135f41b NC |
2084 | break; |
2085 | case bfd_print_symbol_all: | |
2086 | { | |
dc810e39 | 2087 | const char *section_name = symbol->section->name; |
e135f41b | 2088 | |
116c20d2 | 2089 | bfd_print_symbol_vandf (abfd, (void *) file, symbol); |
e135f41b NC |
2090 | |
2091 | fprintf (file," %-5s %04x %02x %02x", | |
2092 | section_name, | |
116c20d2 NC |
2093 | (unsigned) (aout_symbol (symbol)->desc & 0xffff), |
2094 | (unsigned) (aout_symbol (symbol)->other & 0xff), | |
2095 | (unsigned) (aout_symbol (symbol)->type & 0xff)); | |
e135f41b NC |
2096 | if (symbol->name) |
2097 | fprintf(file," %s", symbol->name); | |
2098 | } | |
2099 | break; | |
2100 | } | |
2101 | } | |
2102 | ||
2103 | /* If we don't have to allocate more than 1MB to hold the generic | |
2104 | symbols, we use the generic minisymbol method: it's faster, since | |
2105 | it only translates the symbols once, not multiple times. */ | |
2106 | #define MINISYM_THRESHOLD (1000000 / sizeof (asymbol)) | |
2107 | ||
2108 | /* Read minisymbols. For minisymbols, we use the unmodified a.out | |
2109 | symbols. The minisymbol_to_symbol function translates these into | |
2110 | BFD asymbol structures. */ | |
2111 | ||
2112 | long | |
116c20d2 NC |
2113 | NAME (aout, read_minisymbols) (bfd *abfd, |
2114 | bfd_boolean dynamic, | |
2115 | void * *minisymsp, | |
2116 | unsigned int *sizep) | |
e135f41b NC |
2117 | { |
2118 | if (dynamic) | |
116c20d2 NC |
2119 | /* We could handle the dynamic symbols here as well, but it's |
2120 | easier to hand them off. */ | |
2121 | return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep); | |
e135f41b NC |
2122 | |
2123 | if (! aout_get_external_symbols (abfd)) | |
2124 | return -1; | |
2125 | ||
2126 | if (obj_aout_external_sym_count (abfd) < MINISYM_THRESHOLD) | |
2127 | return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep); | |
2128 | ||
116c20d2 | 2129 | *minisymsp = (void *) obj_aout_external_syms (abfd); |
e135f41b NC |
2130 | |
2131 | /* By passing the external symbols back from this routine, we are | |
2132 | giving up control over the memory block. Clear | |
2133 | obj_aout_external_syms, so that we do not try to free it | |
2134 | ourselves. */ | |
2135 | obj_aout_external_syms (abfd) = NULL; | |
2136 | ||
2137 | *sizep = EXTERNAL_NLIST_SIZE; | |
2138 | return obj_aout_external_sym_count (abfd); | |
2139 | } | |
2140 | ||
2141 | /* Convert a minisymbol to a BFD asymbol. A minisymbol is just an | |
2142 | unmodified a.out symbol. The SYM argument is a structure returned | |
2143 | by bfd_make_empty_symbol, which we fill in here. */ | |
2144 | ||
2145 | asymbol * | |
116c20d2 NC |
2146 | NAME (aout, minisymbol_to_symbol) (bfd *abfd, |
2147 | bfd_boolean dynamic, | |
2148 | const void * minisym, | |
2149 | asymbol *sym) | |
e135f41b NC |
2150 | { |
2151 | if (dynamic | |
2152 | || obj_aout_external_sym_count (abfd) < MINISYM_THRESHOLD) | |
2153 | return _bfd_generic_minisymbol_to_symbol (abfd, dynamic, minisym, sym); | |
2154 | ||
2155 | memset (sym, 0, sizeof (aout_symbol_type)); | |
2156 | ||
2157 | /* We call translate_symbol_table to translate a single symbol. */ | |
116c20d2 | 2158 | if (! (NAME (aout, translate_symbol_table) |
e135f41b NC |
2159 | (abfd, |
2160 | (aout_symbol_type *) sym, | |
2161 | (struct external_nlist *) minisym, | |
2162 | (bfd_size_type) 1, | |
2163 | obj_aout_external_strings (abfd), | |
2164 | obj_aout_external_string_size (abfd), | |
b34976b6 | 2165 | FALSE))) |
e135f41b NC |
2166 | return NULL; |
2167 | ||
2168 | return sym; | |
2169 | } | |
2170 | ||
116c20d2 NC |
2171 | /* Provided a BFD, a section and an offset into the section, calculate |
2172 | and return the name of the source file and the line nearest to the | |
2173 | wanted location. */ | |
e135f41b | 2174 | |
b34976b6 | 2175 | bfd_boolean |
116c20d2 | 2176 | NAME (aout, find_nearest_line) (bfd *abfd, |
116c20d2 | 2177 | asymbol **symbols, |
fb167eb2 | 2178 | asection *section, |
116c20d2 NC |
2179 | bfd_vma offset, |
2180 | const char **filename_ptr, | |
2181 | const char **functionname_ptr, | |
fb167eb2 AM |
2182 | unsigned int *line_ptr, |
2183 | unsigned int *discriminator_ptr) | |
e135f41b | 2184 | { |
116c20d2 | 2185 | /* Run down the file looking for the filename, function and linenumber. */ |
e135f41b | 2186 | asymbol **p; |
dc810e39 AM |
2187 | const char *directory_name = NULL; |
2188 | const char *main_file_name = NULL; | |
2189 | const char *current_file_name = NULL; | |
116c20d2 | 2190 | const char *line_file_name = NULL; /* Value of current_file_name at line number. */ |
e135f41b NC |
2191 | bfd_vma low_line_vma = 0; |
2192 | bfd_vma low_func_vma = 0; | |
2193 | asymbol *func = 0; | |
2194 | size_t filelen, funclen; | |
2195 | char *buf; | |
2196 | ||
2197 | *filename_ptr = abfd->filename; | |
2198 | *functionname_ptr = 0; | |
2199 | *line_ptr = 0; | |
fb167eb2 AM |
2200 | if (discriminator_ptr) |
2201 | *discriminator_ptr = 0; | |
e135f41b | 2202 | |
116c20d2 | 2203 | if (symbols != NULL) |
e135f41b NC |
2204 | { |
2205 | for (p = symbols; *p; p++) | |
2206 | { | |
2207 | aout_symbol_type *q = (aout_symbol_type *)(*p); | |
2208 | next: | |
2209 | switch (q->type) | |
2210 | { | |
2211 | case N_TEXT: | |
2212 | /* If this looks like a file name symbol, and it comes after | |
2213 | the line number we have found so far, but before the | |
2214 | offset, then we have probably not found the right line | |
2215 | number. */ | |
2216 | if (q->symbol.value <= offset | |
2217 | && ((q->symbol.value > low_line_vma | |
2218 | && (line_file_name != NULL | |
2219 | || *line_ptr != 0)) | |
2220 | || (q->symbol.value > low_func_vma | |
2221 | && func != NULL))) | |
2222 | { | |
2223 | const char * symname; | |
2224 | ||
2225 | symname = q->symbol.name; | |
2226 | if (strcmp (symname + strlen (symname) - 2, ".o") == 0) | |
2227 | { | |
2228 | if (q->symbol.value > low_line_vma) | |
2229 | { | |
2230 | *line_ptr = 0; | |
2231 | line_file_name = NULL; | |
2232 | } | |
2233 | if (q->symbol.value > low_func_vma) | |
2234 | func = NULL; | |
2235 | } | |
2236 | } | |
2237 | break; | |
2238 | ||
2239 | case N_SO: | |
2240 | /* If this symbol is less than the offset, but greater than | |
2241 | the line number we have found so far, then we have not | |
2242 | found the right line number. */ | |
2243 | if (q->symbol.value <= offset) | |
2244 | { | |
2245 | if (q->symbol.value > low_line_vma) | |
2246 | { | |
2247 | *line_ptr = 0; | |
2248 | line_file_name = NULL; | |
2249 | } | |
2250 | if (q->symbol.value > low_func_vma) | |
2251 | func = NULL; | |
2252 | } | |
2253 | ||
2254 | main_file_name = current_file_name = q->symbol.name; | |
116c20d2 | 2255 | /* Look ahead to next symbol to check if that too is an N_SO. */ |
e135f41b NC |
2256 | p++; |
2257 | if (*p == NULL) | |
2258 | break; | |
2259 | q = (aout_symbol_type *)(*p); | |
116c20d2 | 2260 | if (q->type != (int) N_SO) |
e135f41b NC |
2261 | goto next; |
2262 | ||
116c20d2 | 2263 | /* Found a second N_SO First is directory; second is filename. */ |
e135f41b NC |
2264 | directory_name = current_file_name; |
2265 | main_file_name = current_file_name = q->symbol.name; | |
2266 | if (obj_textsec(abfd) != section) | |
2267 | goto done; | |
2268 | break; | |
2269 | case N_SOL: | |
2270 | current_file_name = q->symbol.name; | |
2271 | break; | |
2272 | ||
2273 | case N_SLINE: | |
2274 | case N_DSLINE: | |
2275 | case N_BSLINE: | |
2276 | /* We'll keep this if it resolves nearer than the one we have | |
2277 | already. */ | |
2278 | if (q->symbol.value >= low_line_vma | |
2279 | && q->symbol.value <= offset) | |
2280 | { | |
2281 | *line_ptr = q->desc; | |
2282 | low_line_vma = q->symbol.value; | |
2283 | line_file_name = current_file_name; | |
2284 | } | |
2285 | break; | |
2286 | ||
2287 | case N_FUN: | |
2288 | { | |
116c20d2 | 2289 | /* We'll keep this if it is nearer than the one we have already. */ |
e135f41b NC |
2290 | if (q->symbol.value >= low_func_vma && |
2291 | q->symbol.value <= offset) | |
2292 | { | |
2293 | low_func_vma = q->symbol.value; | |
116c20d2 | 2294 | func = (asymbol *) q; |
e135f41b NC |
2295 | } |
2296 | else if (q->symbol.value > offset) | |
2297 | goto done; | |
2298 | } | |
2299 | break; | |
2300 | } | |
2301 | } | |
2302 | } | |
2303 | ||
2304 | done: | |
2305 | if (*line_ptr != 0) | |
2306 | main_file_name = line_file_name; | |
2307 | ||
2308 | if (main_file_name == NULL | |
2309 | || main_file_name[0] == '/' | |
2310 | || directory_name == NULL) | |
2311 | filelen = 0; | |
2312 | else | |
2313 | filelen = strlen (directory_name) + strlen (main_file_name); | |
2314 | if (func == NULL) | |
2315 | funclen = 0; | |
2316 | else | |
2317 | funclen = strlen (bfd_asymbol_name (func)); | |
2318 | ||
2319 | if (adata (abfd).line_buf != NULL) | |
2320 | free (adata (abfd).line_buf); | |
2321 | if (filelen + funclen == 0) | |
2322 | adata (abfd).line_buf = buf = NULL; | |
2323 | else | |
2324 | { | |
116c20d2 | 2325 | buf = bfd_malloc ((bfd_size_type) filelen + funclen + 3); |
e135f41b NC |
2326 | adata (abfd).line_buf = buf; |
2327 | if (buf == NULL) | |
b34976b6 | 2328 | return FALSE; |
e135f41b NC |
2329 | } |
2330 | ||
2331 | if (main_file_name != NULL) | |
2332 | { | |
2333 | if (main_file_name[0] == '/' || directory_name == NULL) | |
2334 | *filename_ptr = main_file_name; | |
2335 | else | |
2336 | { | |
2337 | sprintf (buf, "%s%s", directory_name, main_file_name); | |
2338 | *filename_ptr = buf; | |
2339 | buf += filelen + 1; | |
2340 | } | |
2341 | } | |
2342 | ||
2343 | if (func) | |
2344 | { | |
2345 | const char *function = func->name; | |
dc810e39 | 2346 | char *colon; |
e135f41b NC |
2347 | |
2348 | /* The caller expects a symbol name. We actually have a | |
2349 | function name, without the leading underscore. Put the | |
2350 | underscore back in, so that the caller gets a symbol name. */ | |
2351 | if (bfd_get_symbol_leading_char (abfd) == '\0') | |
2352 | strcpy (buf, function); | |
2353 | else | |
2354 | { | |
2355 | buf[0] = bfd_get_symbol_leading_char (abfd); | |
2356 | strcpy (buf + 1, function); | |
2357 | } | |
2358 | ||
2359 | /* Have to remove : stuff. */ | |
dc810e39 AM |
2360 | colon = strchr (buf, ':'); |
2361 | if (colon != NULL) | |
2362 | *colon = '\0'; | |
e135f41b NC |
2363 | *functionname_ptr = buf; |
2364 | } | |
2365 | ||
b34976b6 | 2366 | return TRUE; |
e135f41b NC |
2367 | } |
2368 | ||
2369 | int | |
a6b96beb AM |
2370 | NAME (aout, sizeof_headers) (bfd *abfd, |
2371 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
e135f41b | 2372 | { |
116c20d2 | 2373 | return adata (abfd).exec_bytes_size; |
e135f41b NC |
2374 | } |
2375 | ||
2376 | /* Free all information we have cached for this BFD. We can always | |
2377 | read it again later if we need it. */ | |
2378 | ||
b34976b6 | 2379 | bfd_boolean |
116c20d2 | 2380 | NAME (aout, bfd_free_cached_info) (bfd *abfd) |
e135f41b NC |
2381 | { |
2382 | asection *o; | |
2383 | ||
2384 | if (bfd_get_format (abfd) != bfd_object) | |
b34976b6 | 2385 | return TRUE; |
e135f41b NC |
2386 | |
2387 | #define BFCI_FREE(x) if (x != NULL) { free (x); x = NULL; } | |
2388 | BFCI_FREE (obj_aout_symbols (abfd)); | |
116c20d2 | 2389 | |
e135f41b NC |
2390 | #ifdef USE_MMAP |
2391 | obj_aout_external_syms (abfd) = 0; | |
2392 | bfd_free_window (&obj_aout_sym_window (abfd)); | |
2393 | bfd_free_window (&obj_aout_string_window (abfd)); | |
2394 | obj_aout_external_strings (abfd) = 0; | |
2395 | #else | |
2396 | BFCI_FREE (obj_aout_external_syms (abfd)); | |
2397 | BFCI_FREE (obj_aout_external_strings (abfd)); | |
2398 | #endif | |
116c20d2 | 2399 | for (o = abfd->sections; o != NULL; o = o->next) |
e135f41b NC |
2400 | BFCI_FREE (o->relocation); |
2401 | #undef BFCI_FREE | |
2402 | ||
b34976b6 | 2403 | return TRUE; |
e135f41b NC |
2404 | } |
2405 | \f | |
e135f41b NC |
2406 | /* Routine to create an entry in an a.out link hash table. */ |
2407 | ||
2408 | struct bfd_hash_entry * | |
116c20d2 NC |
2409 | NAME (aout, link_hash_newfunc) (struct bfd_hash_entry *entry, |
2410 | struct bfd_hash_table *table, | |
2411 | const char *string) | |
e135f41b NC |
2412 | { |
2413 | struct aout_link_hash_entry *ret = (struct aout_link_hash_entry *) entry; | |
2414 | ||
2415 | /* Allocate the structure if it has not already been allocated by a | |
2416 | subclass. */ | |
116c20d2 NC |
2417 | if (ret == NULL) |
2418 | ret = bfd_hash_allocate (table, sizeof (* ret)); | |
2419 | if (ret == NULL) | |
2420 | return NULL; | |
e135f41b NC |
2421 | |
2422 | /* Call the allocation method of the superclass. */ | |
116c20d2 NC |
2423 | ret = (struct aout_link_hash_entry *) |
2424 | _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret, table, string); | |
e135f41b NC |
2425 | if (ret) |
2426 | { | |
2427 | /* Set local fields. */ | |
b34976b6 | 2428 | ret->written = FALSE; |
e135f41b NC |
2429 | ret->indx = -1; |
2430 | } | |
2431 | ||
2432 | return (struct bfd_hash_entry *) ret; | |
2433 | } | |
2434 | ||
2435 | /* Initialize an a.out link hash table. */ | |
2436 | ||
b34976b6 | 2437 | bfd_boolean |
116c20d2 NC |
2438 | NAME (aout, link_hash_table_init) (struct aout_link_hash_table *table, |
2439 | bfd *abfd, | |
2440 | struct bfd_hash_entry *(*newfunc) (struct bfd_hash_entry *, | |
2441 | struct bfd_hash_table *, | |
66eb6687 AM |
2442 | const char *), |
2443 | unsigned int entsize) | |
e135f41b | 2444 | { |
66eb6687 | 2445 | return _bfd_link_hash_table_init (&table->root, abfd, newfunc, entsize); |
e135f41b NC |
2446 | } |
2447 | ||
2448 | /* Create an a.out link hash table. */ | |
2449 | ||
2450 | struct bfd_link_hash_table * | |
116c20d2 | 2451 | NAME (aout, link_hash_table_create) (bfd *abfd) |
e135f41b NC |
2452 | { |
2453 | struct aout_link_hash_table *ret; | |
dc810e39 | 2454 | bfd_size_type amt = sizeof (struct aout_link_hash_table); |
e135f41b | 2455 | |
22cdc249 | 2456 | ret = bfd_malloc (amt); |
e135f41b | 2457 | if (ret == NULL) |
116c20d2 NC |
2458 | return NULL; |
2459 | if (! NAME (aout, link_hash_table_init) (ret, abfd, | |
66eb6687 AM |
2460 | NAME (aout, link_hash_newfunc), |
2461 | sizeof (struct aout_link_hash_entry))) | |
e135f41b NC |
2462 | { |
2463 | free (ret); | |
116c20d2 | 2464 | return NULL; |
e135f41b NC |
2465 | } |
2466 | return &ret->root; | |
2467 | } | |
2468 | ||
116c20d2 NC |
2469 | /* Free up the internal symbols read from an a.out file. */ |
2470 | ||
2471 | static bfd_boolean | |
2472 | aout_link_free_symbols (bfd *abfd) | |
2473 | { | |
2474 | if (obj_aout_external_syms (abfd) != NULL) | |
2475 | { | |
2476 | #ifdef USE_MMAP | |
2477 | bfd_free_window (&obj_aout_sym_window (abfd)); | |
2478 | #else | |
2479 | free ((void *) obj_aout_external_syms (abfd)); | |
2480 | #endif | |
2481 | obj_aout_external_syms (abfd) = NULL; | |
2482 | } | |
2483 | ||
2484 | if (obj_aout_external_strings (abfd) != NULL) | |
2485 | { | |
2486 | #ifdef USE_MMAP | |
2487 | bfd_free_window (&obj_aout_string_window (abfd)); | |
2488 | #else | |
2489 | free ((void *) obj_aout_external_strings (abfd)); | |
2490 | #endif | |
2491 | obj_aout_external_strings (abfd) = NULL; | |
2492 | } | |
2493 | return TRUE; | |
2494 | } | |
2495 | ||
e135f41b NC |
2496 | /* Given an a.out BFD, add symbols to the global hash table as |
2497 | appropriate. */ | |
2498 | ||
b34976b6 | 2499 | bfd_boolean |
116c20d2 | 2500 | NAME (aout, link_add_symbols) (bfd *abfd, struct bfd_link_info *info) |
e135f41b NC |
2501 | { |
2502 | switch (bfd_get_format (abfd)) | |
2503 | { | |
2504 | case bfd_object: | |
2505 | return aout_link_add_object_symbols (abfd, info); | |
2506 | case bfd_archive: | |
2507 | return _bfd_generic_link_add_archive_symbols | |
2508 | (abfd, info, aout_link_check_archive_element); | |
2509 | default: | |
2510 | bfd_set_error (bfd_error_wrong_format); | |
b34976b6 | 2511 | return FALSE; |
e135f41b NC |
2512 | } |
2513 | } | |
2514 | ||
2515 | /* Add symbols from an a.out object file. */ | |
2516 | ||
b34976b6 | 2517 | static bfd_boolean |
116c20d2 | 2518 | aout_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info) |
e135f41b NC |
2519 | { |
2520 | if (! aout_get_external_symbols (abfd)) | |
b34976b6 | 2521 | return FALSE; |
e135f41b | 2522 | if (! aout_link_add_symbols (abfd, info)) |
b34976b6 | 2523 | return FALSE; |
e135f41b NC |
2524 | if (! info->keep_memory) |
2525 | { | |
2526 | if (! aout_link_free_symbols (abfd)) | |
b34976b6 | 2527 | return FALSE; |
e135f41b | 2528 | } |
b34976b6 | 2529 | return TRUE; |
e135f41b NC |
2530 | } |
2531 | ||
e135f41b NC |
2532 | /* Look through the internal symbols to see if this object file should |
2533 | be included in the link. We should include this object file if it | |
2534 | defines any symbols which are currently undefined. If this object | |
2535 | file defines a common symbol, then we may adjust the size of the | |
2536 | known symbol but we do not include the object file in the link | |
2537 | (unless there is some other reason to include it). */ | |
2538 | ||
b34976b6 | 2539 | static bfd_boolean |
116c20d2 NC |
2540 | aout_link_check_ar_symbols (bfd *abfd, |
2541 | struct bfd_link_info *info, | |
5d3236ee DK |
2542 | bfd_boolean *pneeded, |
2543 | bfd **subsbfd) | |
e135f41b | 2544 | { |
116c20d2 | 2545 | struct external_nlist *p; |
e135f41b NC |
2546 | struct external_nlist *pend; |
2547 | char *strings; | |
2548 | ||
b34976b6 | 2549 | *pneeded = FALSE; |
e135f41b NC |
2550 | |
2551 | /* Look through all the symbols. */ | |
2552 | p = obj_aout_external_syms (abfd); | |
2553 | pend = p + obj_aout_external_sym_count (abfd); | |
2554 | strings = obj_aout_external_strings (abfd); | |
2555 | for (; p < pend; p++) | |
2556 | { | |
dc810e39 | 2557 | int type = H_GET_8 (abfd, p->e_type); |
e135f41b NC |
2558 | const char *name; |
2559 | struct bfd_link_hash_entry *h; | |
2560 | ||
2561 | /* Ignore symbols that are not externally visible. This is an | |
2562 | optimization only, as we check the type more thoroughly | |
2563 | below. */ | |
2564 | if ((type & N_EXT) == 0 | |
2565 | || type == N_FN) | |
2566 | continue; | |
2567 | ||
2568 | name = strings + GET_WORD (abfd, p->e_strx); | |
b34976b6 | 2569 | h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE); |
e135f41b NC |
2570 | |
2571 | /* We are only interested in symbols that are currently | |
2572 | undefined or common. */ | |
116c20d2 | 2573 | if (h == NULL |
e135f41b NC |
2574 | || (h->type != bfd_link_hash_undefined |
2575 | && h->type != bfd_link_hash_common)) | |
2576 | continue; | |
2577 | ||
2578 | if (type == (N_TEXT | N_EXT) | |
2579 | || type == (N_DATA | N_EXT) | |
2580 | || type == (N_BSS | N_EXT) | |
2581 | || type == (N_ABS | N_EXT)) | |
2582 | { | |
2583 | /* This object file defines this symbol. We must link it | |
2584 | in. This is true regardless of whether the current | |
2585 | definition of the symbol is undefined or common. If the | |
2586 | current definition is common, we have a case in which we | |
2587 | have already seen an object file including | |
07d6d2b8 | 2588 | int a; |
e135f41b | 2589 | and this object file from the archive includes |
07d6d2b8 | 2590 | int a = 5; |
e135f41b NC |
2591 | In such a case we must include this object file. |
2592 | ||
2593 | FIXME: The SunOS 4.1.3 linker will pull in the archive | |
2594 | element if the symbol is defined in the .data section, | |
2595 | but not if it is defined in the .text section. That | |
2596 | seems a bit crazy to me, and I haven't implemented it. | |
2597 | However, it might be correct. */ | |
0e144ba7 AM |
2598 | if (!(*info->callbacks |
2599 | ->add_archive_element) (info, abfd, name, subsbfd)) | |
b95a0a31 | 2600 | continue; |
b34976b6 AM |
2601 | *pneeded = TRUE; |
2602 | return TRUE; | |
e135f41b NC |
2603 | } |
2604 | ||
2605 | if (type == (N_UNDF | N_EXT)) | |
2606 | { | |
2607 | bfd_vma value; | |
2608 | ||
2609 | value = GET_WORD (abfd, p->e_value); | |
2610 | if (value != 0) | |
2611 | { | |
2612 | /* This symbol is common in the object from the archive | |
2613 | file. */ | |
2614 | if (h->type == bfd_link_hash_undefined) | |
2615 | { | |
2616 | bfd *symbfd; | |
2617 | unsigned int power; | |
2618 | ||
2619 | symbfd = h->u.undef.abfd; | |
116c20d2 | 2620 | if (symbfd == NULL) |
e135f41b NC |
2621 | { |
2622 | /* This symbol was created as undefined from | |
2623 | outside BFD. We assume that we should link | |
2624 | in the object file. This is done for the -u | |
2625 | option in the linker. */ | |
0e144ba7 AM |
2626 | if (!(*info->callbacks |
2627 | ->add_archive_element) (info, abfd, name, subsbfd)) | |
b34976b6 AM |
2628 | return FALSE; |
2629 | *pneeded = TRUE; | |
2630 | return TRUE; | |
e135f41b NC |
2631 | } |
2632 | /* Turn the current link symbol into a common | |
2633 | symbol. It is already on the undefs list. */ | |
2634 | h->type = bfd_link_hash_common; | |
116c20d2 NC |
2635 | h->u.c.p = bfd_hash_allocate (&info->hash->table, |
2636 | sizeof (struct bfd_link_hash_common_entry)); | |
e135f41b | 2637 | if (h->u.c.p == NULL) |
b34976b6 | 2638 | return FALSE; |
e135f41b NC |
2639 | |
2640 | h->u.c.size = value; | |
2641 | ||
2642 | /* FIXME: This isn't quite right. The maximum | |
2643 | alignment of a common symbol should be set by the | |
2644 | architecture of the output file, not of the input | |
2645 | file. */ | |
2646 | power = bfd_log2 (value); | |
2647 | if (power > bfd_get_arch_info (abfd)->section_align_power) | |
2648 | power = bfd_get_arch_info (abfd)->section_align_power; | |
2649 | h->u.c.p->alignment_power = power; | |
2650 | ||
2651 | h->u.c.p->section = bfd_make_section_old_way (symbfd, | |
2652 | "COMMON"); | |
2653 | } | |
2654 | else | |
2655 | { | |
2656 | /* Adjust the size of the common symbol if | |
2657 | necessary. */ | |
2658 | if (value > h->u.c.size) | |
2659 | h->u.c.size = value; | |
2660 | } | |
2661 | } | |
2662 | } | |
2663 | } | |
2664 | ||
2665 | /* We do not need this object file. */ | |
b34976b6 | 2666 | return TRUE; |
e135f41b NC |
2667 | } |
2668 | ||
116c20d2 NC |
2669 | /* Check a single archive element to see if we need to include it in |
2670 | the link. *PNEEDED is set according to whether this element is | |
2671 | needed in the link or not. This is called from | |
2672 | _bfd_generic_link_add_archive_symbols. */ | |
2673 | ||
2674 | static bfd_boolean | |
2675 | aout_link_check_archive_element (bfd *abfd, | |
2676 | struct bfd_link_info *info, | |
13e570f8 AM |
2677 | struct bfd_link_hash_entry *h ATTRIBUTE_UNUSED, |
2678 | const char *name ATTRIBUTE_UNUSED, | |
116c20d2 NC |
2679 | bfd_boolean *pneeded) |
2680 | { | |
0e144ba7 AM |
2681 | bfd *oldbfd; |
2682 | bfd_boolean needed; | |
5d3236ee | 2683 | |
0e144ba7 | 2684 | if (!aout_get_external_symbols (abfd)) |
116c20d2 NC |
2685 | return FALSE; |
2686 | ||
0e144ba7 AM |
2687 | oldbfd = abfd; |
2688 | if (!aout_link_check_ar_symbols (abfd, info, pneeded, &abfd)) | |
116c20d2 NC |
2689 | return FALSE; |
2690 | ||
0e144ba7 AM |
2691 | needed = *pneeded; |
2692 | if (needed) | |
116c20d2 | 2693 | { |
5d3236ee DK |
2694 | /* Potentially, the add_archive_element hook may have set a |
2695 | substitute BFD for us. */ | |
0e144ba7 AM |
2696 | if (abfd != oldbfd) |
2697 | { | |
2698 | if (!info->keep_memory | |
2699 | && !aout_link_free_symbols (oldbfd)) | |
2700 | return FALSE; | |
2701 | if (!aout_get_external_symbols (abfd)) | |
2702 | return FALSE; | |
2703 | } | |
2704 | if (!aout_link_add_symbols (abfd, info)) | |
116c20d2 NC |
2705 | return FALSE; |
2706 | } | |
2707 | ||
0e144ba7 | 2708 | if (!info->keep_memory || !needed) |
116c20d2 | 2709 | { |
0e144ba7 | 2710 | if (!aout_link_free_symbols (abfd)) |
116c20d2 NC |
2711 | return FALSE; |
2712 | } | |
2713 | ||
2714 | return TRUE; | |
2715 | } | |
2716 | ||
e135f41b NC |
2717 | /* Add all symbols from an object file to the hash table. */ |
2718 | ||
b34976b6 | 2719 | static bfd_boolean |
116c20d2 | 2720 | aout_link_add_symbols (bfd *abfd, struct bfd_link_info *info) |
e135f41b | 2721 | { |
b34976b6 | 2722 | bfd_boolean (*add_one_symbol) |
116c20d2 NC |
2723 | (struct bfd_link_info *, bfd *, const char *, flagword, asection *, |
2724 | bfd_vma, const char *, bfd_boolean, bfd_boolean, | |
2725 | struct bfd_link_hash_entry **); | |
e135f41b NC |
2726 | struct external_nlist *syms; |
2727 | bfd_size_type sym_count; | |
2728 | char *strings; | |
b34976b6 | 2729 | bfd_boolean copy; |
e135f41b | 2730 | struct aout_link_hash_entry **sym_hash; |
116c20d2 | 2731 | struct external_nlist *p; |
e135f41b NC |
2732 | struct external_nlist *pend; |
2733 | ||
2734 | syms = obj_aout_external_syms (abfd); | |
2735 | sym_count = obj_aout_external_sym_count (abfd); | |
2736 | strings = obj_aout_external_strings (abfd); | |
2737 | if (info->keep_memory) | |
b34976b6 | 2738 | copy = FALSE; |
e135f41b | 2739 | else |
b34976b6 | 2740 | copy = TRUE; |
e135f41b NC |
2741 | |
2742 | if (aout_backend_info (abfd)->add_dynamic_symbols != NULL) | |
2743 | { | |
2744 | if (! ((*aout_backend_info (abfd)->add_dynamic_symbols) | |
2745 | (abfd, info, &syms, &sym_count, &strings))) | |
b34976b6 | 2746 | return FALSE; |
e135f41b NC |
2747 | } |
2748 | ||
2749 | /* We keep a list of the linker hash table entries that correspond | |
2750 | to particular symbols. We could just look them up in the hash | |
2751 | table, but keeping the list is more efficient. Perhaps this | |
2752 | should be conditional on info->keep_memory. */ | |
116c20d2 NC |
2753 | sym_hash = bfd_alloc (abfd, |
2754 | sym_count * sizeof (struct aout_link_hash_entry *)); | |
e135f41b | 2755 | if (sym_hash == NULL && sym_count != 0) |
b34976b6 | 2756 | return FALSE; |
e135f41b NC |
2757 | obj_aout_sym_hashes (abfd) = sym_hash; |
2758 | ||
2759 | add_one_symbol = aout_backend_info (abfd)->add_one_symbol; | |
2760 | if (add_one_symbol == NULL) | |
2761 | add_one_symbol = _bfd_generic_link_add_one_symbol; | |
2762 | ||
2763 | p = syms; | |
2764 | pend = p + sym_count; | |
2765 | for (; p < pend; p++, sym_hash++) | |
2766 | { | |
2767 | int type; | |
2768 | const char *name; | |
2769 | bfd_vma value; | |
2770 | asection *section; | |
2771 | flagword flags; | |
2772 | const char *string; | |
2773 | ||
2774 | *sym_hash = NULL; | |
2775 | ||
dc810e39 | 2776 | type = H_GET_8 (abfd, p->e_type); |
e135f41b | 2777 | |
e135f41b NC |
2778 | name = strings + GET_WORD (abfd, p->e_strx); |
2779 | value = GET_WORD (abfd, p->e_value); | |
2780 | flags = BSF_GLOBAL; | |
2781 | string = NULL; | |
2782 | switch (type) | |
2783 | { | |
2784 | default: | |
0c98115d PK |
2785 | /* Anything else should be a debugging symbol. */ |
2786 | BFD_ASSERT ((type & N_STAB) != 0); | |
2787 | continue; | |
e135f41b NC |
2788 | |
2789 | case N_UNDF: | |
2790 | case N_ABS: | |
2791 | case N_TEXT: | |
2792 | case N_DATA: | |
2793 | case N_BSS: | |
2794 | case N_REG: | |
2795 | case N_FN: | |
2796 | /* Ignore symbols that are not externally visible. */ | |
2797 | continue; | |
2798 | ||
2799 | case N_UNDF | N_EXT: | |
2800 | if (value == 0) | |
2801 | { | |
2802 | section = bfd_und_section_ptr; | |
2803 | flags = 0; | |
2804 | } | |
2805 | else | |
2806 | section = bfd_com_section_ptr; | |
2807 | break; | |
2808 | case N_ABS | N_EXT: | |
2809 | section = bfd_abs_section_ptr; | |
2810 | break; | |
2811 | case N_TEXT | N_EXT: | |
2812 | section = obj_textsec (abfd); | |
2813 | value -= bfd_get_section_vma (abfd, section); | |
2814 | break; | |
2815 | case N_DATA | N_EXT: | |
2816 | /* Treat N_SETV symbols as N_DATA symbol; see comment in | |
2817 | translate_from_native_sym_flags. */ | |
2818 | section = obj_datasec (abfd); | |
2819 | value -= bfd_get_section_vma (abfd, section); | |
2820 | break; | |
2821 | case N_BSS | N_EXT: | |
2822 | section = obj_bsssec (abfd); | |
2823 | value -= bfd_get_section_vma (abfd, section); | |
2824 | break; | |
2825 | } | |
2826 | ||
2827 | if (! ((*add_one_symbol) | |
b34976b6 | 2828 | (info, abfd, name, flags, section, value, string, copy, FALSE, |
e135f41b | 2829 | (struct bfd_link_hash_entry **) sym_hash))) |
b34976b6 | 2830 | return FALSE; |
e135f41b NC |
2831 | |
2832 | /* Restrict the maximum alignment of a common symbol based on | |
2833 | the architecture, since a.out has no way to represent | |
2834 | alignment requirements of a section in a .o file. FIXME: | |
2835 | This isn't quite right: it should use the architecture of the | |
2836 | output file, not the input files. */ | |
2837 | if ((*sym_hash)->root.type == bfd_link_hash_common | |
2838 | && ((*sym_hash)->root.u.c.p->alignment_power > | |
2839 | bfd_get_arch_info (abfd)->section_align_power)) | |
2840 | (*sym_hash)->root.u.c.p->alignment_power = | |
2841 | bfd_get_arch_info (abfd)->section_align_power; | |
2842 | ||
2843 | /* If this is a set symbol, and we are not building sets, then | |
2844 | it is possible for the hash entry to not have been set. In | |
2845 | such a case, treat the symbol as not globally defined. */ | |
2846 | if ((*sym_hash)->root.type == bfd_link_hash_new) | |
2847 | { | |
2848 | BFD_ASSERT ((flags & BSF_CONSTRUCTOR) != 0); | |
2849 | *sym_hash = NULL; | |
2850 | } | |
2851 | } | |
2852 | ||
b34976b6 | 2853 | return TRUE; |
e135f41b NC |
2854 | } |
2855 | \f | |
116c20d2 | 2856 | /* Look up an entry in an the header file hash table. */ |
e135f41b NC |
2857 | |
2858 | #define aout_link_includes_lookup(table, string, create, copy) \ | |
2859 | ((struct aout_link_includes_entry *) \ | |
2860 | bfd_hash_lookup (&(table)->root, (string), (create), (copy))) | |
2861 | ||
e135f41b NC |
2862 | /* The function to create a new entry in the header file hash table. */ |
2863 | ||
2864 | static struct bfd_hash_entry * | |
116c20d2 NC |
2865 | aout_link_includes_newfunc (struct bfd_hash_entry *entry, |
2866 | struct bfd_hash_table *table, | |
2867 | const char *string) | |
e135f41b | 2868 | { |
116c20d2 | 2869 | struct aout_link_includes_entry * ret = |
e135f41b NC |
2870 | (struct aout_link_includes_entry *) entry; |
2871 | ||
2872 | /* Allocate the structure if it has not already been allocated by a | |
2873 | subclass. */ | |
116c20d2 NC |
2874 | if (ret == NULL) |
2875 | ret = bfd_hash_allocate (table, | |
2876 | sizeof (struct aout_link_includes_entry)); | |
2877 | if (ret == NULL) | |
2878 | return NULL; | |
e135f41b NC |
2879 | |
2880 | /* Call the allocation method of the superclass. */ | |
2881 | ret = ((struct aout_link_includes_entry *) | |
2882 | bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string)); | |
2883 | if (ret) | |
116c20d2 NC |
2884 | /* Set local fields. */ |
2885 | ret->totals = NULL; | |
e135f41b NC |
2886 | |
2887 | return (struct bfd_hash_entry *) ret; | |
2888 | } | |
2889 | ||
116c20d2 | 2890 | static bfd_boolean |
7686d77d | 2891 | aout_link_write_other_symbol (struct bfd_hash_entry *bh, void *data) |
e135f41b | 2892 | { |
7686d77d | 2893 | struct aout_link_hash_entry *h = (struct aout_link_hash_entry *) bh; |
57402f1e | 2894 | struct aout_final_link_info *flaginfo = (struct aout_final_link_info *) data; |
116c20d2 NC |
2895 | bfd *output_bfd; |
2896 | int type; | |
2897 | bfd_vma val; | |
2898 | struct external_nlist outsym; | |
2899 | bfd_size_type indx; | |
2900 | bfd_size_type amt; | |
e135f41b | 2901 | |
116c20d2 NC |
2902 | if (h->root.type == bfd_link_hash_warning) |
2903 | { | |
2904 | h = (struct aout_link_hash_entry *) h->root.u.i.link; | |
2905 | if (h->root.type == bfd_link_hash_new) | |
2906 | return TRUE; | |
2907 | } | |
e135f41b | 2908 | |
57402f1e | 2909 | output_bfd = flaginfo->output_bfd; |
e135f41b | 2910 | |
116c20d2 | 2911 | if (aout_backend_info (output_bfd)->write_dynamic_symbol != NULL) |
e135f41b | 2912 | { |
116c20d2 | 2913 | if (! ((*aout_backend_info (output_bfd)->write_dynamic_symbol) |
57402f1e | 2914 | (output_bfd, flaginfo->info, h))) |
e135f41b | 2915 | { |
116c20d2 NC |
2916 | /* FIXME: No way to handle errors. */ |
2917 | abort (); | |
e135f41b | 2918 | } |
116c20d2 | 2919 | } |
e135f41b | 2920 | |
116c20d2 NC |
2921 | if (h->written) |
2922 | return TRUE; | |
e135f41b | 2923 | |
116c20d2 | 2924 | h->written = TRUE; |
e135f41b | 2925 | |
116c20d2 NC |
2926 | /* An indx of -2 means the symbol must be written. */ |
2927 | if (h->indx != -2 | |
57402f1e NC |
2928 | && (flaginfo->info->strip == strip_all |
2929 | || (flaginfo->info->strip == strip_some | |
2930 | && bfd_hash_lookup (flaginfo->info->keep_hash, h->root.root.string, | |
116c20d2 NC |
2931 | FALSE, FALSE) == NULL))) |
2932 | return TRUE; | |
e135f41b | 2933 | |
116c20d2 | 2934 | switch (h->root.type) |
e135f41b | 2935 | { |
116c20d2 NC |
2936 | default: |
2937 | abort (); | |
2938 | /* Avoid variable not initialized warnings. */ | |
2939 | return TRUE; | |
2940 | case bfd_link_hash_new: | |
2941 | /* This can happen for set symbols when sets are not being | |
07d6d2b8 | 2942 | built. */ |
116c20d2 NC |
2943 | return TRUE; |
2944 | case bfd_link_hash_undefined: | |
2945 | type = N_UNDF | N_EXT; | |
2946 | val = 0; | |
2947 | break; | |
2948 | case bfd_link_hash_defined: | |
2949 | case bfd_link_hash_defweak: | |
2950 | { | |
2951 | asection *sec; | |
2952 | ||
2953 | sec = h->root.u.def.section->output_section; | |
2954 | BFD_ASSERT (bfd_is_abs_section (sec) | |
2955 | || sec->owner == output_bfd); | |
2956 | if (sec == obj_textsec (output_bfd)) | |
2957 | type = h->root.type == bfd_link_hash_defined ? N_TEXT : N_WEAKT; | |
2958 | else if (sec == obj_datasec (output_bfd)) | |
2959 | type = h->root.type == bfd_link_hash_defined ? N_DATA : N_WEAKD; | |
2960 | else if (sec == obj_bsssec (output_bfd)) | |
2961 | type = h->root.type == bfd_link_hash_defined ? N_BSS : N_WEAKB; | |
2962 | else | |
2963 | type = h->root.type == bfd_link_hash_defined ? N_ABS : N_WEAKA; | |
2964 | type |= N_EXT; | |
2965 | val = (h->root.u.def.value | |
2966 | + sec->vma | |
2967 | + h->root.u.def.section->output_offset); | |
2968 | } | |
2969 | break; | |
2970 | case bfd_link_hash_common: | |
2971 | type = N_UNDF | N_EXT; | |
2972 | val = h->root.u.c.size; | |
2973 | break; | |
2974 | case bfd_link_hash_undefweak: | |
2975 | type = N_WEAKU; | |
2976 | val = 0; | |
1a0670f3 | 2977 | /* Fall through. */ |
116c20d2 NC |
2978 | case bfd_link_hash_indirect: |
2979 | case bfd_link_hash_warning: | |
2980 | /* FIXME: Ignore these for now. The circumstances under which | |
2981 | they should be written out are not clear to me. */ | |
2982 | return TRUE; | |
e135f41b NC |
2983 | } |
2984 | ||
116c20d2 | 2985 | H_PUT_8 (output_bfd, type, outsym.e_type); |
57402f1e | 2986 | indx = add_to_stringtab (output_bfd, flaginfo->strtab, h->root.root.string, |
116c20d2 NC |
2987 | FALSE); |
2988 | if (indx == (bfd_size_type) -1) | |
2989 | /* FIXME: No way to handle errors. */ | |
2990 | abort (); | |
e135f41b | 2991 | |
116c20d2 NC |
2992 | PUT_WORD (output_bfd, indx, outsym.e_strx); |
2993 | PUT_WORD (output_bfd, val, outsym.e_value); | |
e135f41b | 2994 | |
116c20d2 | 2995 | amt = EXTERNAL_NLIST_SIZE; |
57402f1e | 2996 | if (bfd_seek (output_bfd, flaginfo->symoff, SEEK_SET) != 0 |
116c20d2 NC |
2997 | || bfd_bwrite ((void *) &outsym, amt, output_bfd) != amt) |
2998 | /* FIXME: No way to handle errors. */ | |
2999 | abort (); | |
e135f41b | 3000 | |
57402f1e | 3001 | flaginfo->symoff += amt; |
116c20d2 NC |
3002 | h->indx = obj_aout_external_sym_count (output_bfd); |
3003 | ++obj_aout_external_sym_count (output_bfd); | |
e135f41b | 3004 | |
116c20d2 NC |
3005 | return TRUE; |
3006 | } | |
e135f41b | 3007 | |
116c20d2 | 3008 | /* Handle a link order which is supposed to generate a reloc. */ |
e135f41b | 3009 | |
116c20d2 | 3010 | static bfd_boolean |
57402f1e | 3011 | aout_link_reloc_link_order (struct aout_final_link_info *flaginfo, |
116c20d2 NC |
3012 | asection *o, |
3013 | struct bfd_link_order *p) | |
3014 | { | |
3015 | struct bfd_link_order_reloc *pr; | |
3016 | int r_index; | |
3017 | int r_extern; | |
3018 | reloc_howto_type *howto; | |
3019 | file_ptr *reloff_ptr; | |
3020 | struct reloc_std_external srel; | |
3021 | void * rel_ptr; | |
3022 | bfd_size_type rel_size; | |
e135f41b | 3023 | |
116c20d2 | 3024 | pr = p->u.reloc.p; |
e135f41b | 3025 | |
116c20d2 | 3026 | if (p->type == bfd_section_reloc_link_order) |
e135f41b | 3027 | { |
116c20d2 NC |
3028 | r_extern = 0; |
3029 | if (bfd_is_abs_section (pr->u.section)) | |
3030 | r_index = N_ABS | N_EXT; | |
3031 | else | |
e135f41b | 3032 | { |
57402f1e | 3033 | BFD_ASSERT (pr->u.section->owner == flaginfo->output_bfd); |
116c20d2 | 3034 | r_index = pr->u.section->target_index; |
e135f41b NC |
3035 | } |
3036 | } | |
116c20d2 | 3037 | else |
e135f41b | 3038 | { |
116c20d2 | 3039 | struct aout_link_hash_entry *h; |
e135f41b | 3040 | |
116c20d2 NC |
3041 | BFD_ASSERT (p->type == bfd_symbol_reloc_link_order); |
3042 | r_extern = 1; | |
3043 | h = ((struct aout_link_hash_entry *) | |
57402f1e | 3044 | bfd_wrapped_link_hash_lookup (flaginfo->output_bfd, flaginfo->info, |
116c20d2 NC |
3045 | pr->u.name, FALSE, FALSE, TRUE)); |
3046 | if (h != NULL | |
3047 | && h->indx >= 0) | |
3048 | r_index = h->indx; | |
3049 | else if (h != NULL) | |
3050 | { | |
3051 | /* We decided to strip this symbol, but it turns out that we | |
3052 | can't. Note that we lose the other and desc information | |
3053 | here. I don't think that will ever matter for a global | |
3054 | symbol. */ | |
3055 | h->indx = -2; | |
3056 | h->written = FALSE; | |
57402f1e | 3057 | if (!aout_link_write_other_symbol (&h->root.root, flaginfo)) |
116c20d2 NC |
3058 | return FALSE; |
3059 | r_index = h->indx; | |
e135f41b | 3060 | } |
116c20d2 | 3061 | else |
e135f41b | 3062 | { |
1a72702b AM |
3063 | (*flaginfo->info->callbacks->unattached_reloc) |
3064 | (flaginfo->info, pr->u.name, NULL, NULL, (bfd_vma) 0); | |
116c20d2 | 3065 | r_index = 0; |
e135f41b NC |
3066 | } |
3067 | } | |
3068 | ||
57402f1e | 3069 | howto = bfd_reloc_type_lookup (flaginfo->output_bfd, pr->reloc); |
116c20d2 | 3070 | if (howto == 0) |
e135f41b | 3071 | { |
116c20d2 NC |
3072 | bfd_set_error (bfd_error_bad_value); |
3073 | return FALSE; | |
e135f41b NC |
3074 | } |
3075 | ||
57402f1e NC |
3076 | if (o == obj_textsec (flaginfo->output_bfd)) |
3077 | reloff_ptr = &flaginfo->treloff; | |
3078 | else if (o == obj_datasec (flaginfo->output_bfd)) | |
3079 | reloff_ptr = &flaginfo->dreloff; | |
116c20d2 NC |
3080 | else |
3081 | abort (); | |
e135f41b | 3082 | |
116c20d2 | 3083 | #ifdef MY_put_reloc |
57402f1e | 3084 | MY_put_reloc(flaginfo->output_bfd, r_extern, r_index, p->offset, howto, |
116c20d2 NC |
3085 | &srel); |
3086 | #else | |
3087 | { | |
3088 | int r_pcrel; | |
3089 | int r_baserel; | |
3090 | int r_jmptable; | |
3091 | int r_relative; | |
3092 | int r_length; | |
e135f41b | 3093 | |
116c20d2 | 3094 | fprintf (stderr, "TODO: line %d in bfd/pdp11.c\n", __LINE__); |
e135f41b | 3095 | |
116c20d2 NC |
3096 | r_pcrel = howto->pc_relative; |
3097 | r_baserel = (howto->type & 8) != 0; | |
3098 | r_jmptable = (howto->type & 16) != 0; | |
3099 | r_relative = (howto->type & 32) != 0; | |
3100 | r_length = howto->size; | |
e135f41b | 3101 | |
57402f1e NC |
3102 | PUT_WORD (flaginfo->output_bfd, p->offset, srel.r_address); |
3103 | if (bfd_header_big_endian (flaginfo->output_bfd)) | |
116c20d2 NC |
3104 | { |
3105 | srel.r_index[0] = r_index >> 16; | |
3106 | srel.r_index[1] = r_index >> 8; | |
3107 | srel.r_index[2] = r_index; | |
3108 | srel.r_type[0] = | |
3109 | ((r_extern ? RELOC_STD_BITS_EXTERN_BIG : 0) | |
3110 | | (r_pcrel ? RELOC_STD_BITS_PCREL_BIG : 0) | |
3111 | | (r_baserel ? RELOC_STD_BITS_BASEREL_BIG : 0) | |
3112 | | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_BIG : 0) | |
3113 | | (r_relative ? RELOC_STD_BITS_RELATIVE_BIG : 0) | |
3114 | | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG)); | |
3115 | } | |
3116 | else | |
3117 | { | |
3118 | srel.r_index[2] = r_index >> 16; | |
3119 | srel.r_index[1] = r_index >> 8; | |
3120 | srel.r_index[0] = r_index; | |
3121 | srel.r_type[0] = | |
3122 | ((r_extern ? RELOC_STD_BITS_EXTERN_LITTLE : 0) | |
3123 | | (r_pcrel ? RELOC_STD_BITS_PCREL_LITTLE : 0) | |
3124 | | (r_baserel ? RELOC_STD_BITS_BASEREL_LITTLE : 0) | |
3125 | | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_LITTLE : 0) | |
3126 | | (r_relative ? RELOC_STD_BITS_RELATIVE_LITTLE : 0) | |
3127 | | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE)); | |
3128 | } | |
3129 | } | |
3130 | #endif | |
3131 | rel_ptr = (void *) &srel; | |
e135f41b | 3132 | |
116c20d2 NC |
3133 | /* We have to write the addend into the object file, since |
3134 | standard a.out relocs are in place. It would be more | |
3135 | reliable if we had the current contents of the file here, | |
3136 | rather than assuming zeroes, but we can't read the file since | |
3137 | it was opened using bfd_openw. */ | |
3138 | if (pr->addend != 0) | |
e135f41b | 3139 | { |
116c20d2 NC |
3140 | bfd_size_type size; |
3141 | bfd_reloc_status_type r; | |
3142 | bfd_byte *buf; | |
3143 | bfd_boolean ok; | |
3144 | ||
3145 | size = bfd_get_reloc_size (howto); | |
3146 | buf = bfd_zmalloc (size); | |
6346d5ca | 3147 | if (buf == NULL && size != 0) |
116c20d2 | 3148 | return FALSE; |
57402f1e | 3149 | r = MY_relocate_contents (howto, flaginfo->output_bfd, |
116c20d2 NC |
3150 | pr->addend, buf); |
3151 | switch (r) | |
3152 | { | |
3153 | case bfd_reloc_ok: | |
3154 | break; | |
3155 | default: | |
3156 | case bfd_reloc_outofrange: | |
3157 | abort (); | |
3158 | case bfd_reloc_overflow: | |
1a72702b AM |
3159 | (*flaginfo->info->callbacks->reloc_overflow) |
3160 | (flaginfo->info, NULL, | |
3161 | (p->type == bfd_section_reloc_link_order | |
3162 | ? bfd_section_name (flaginfo->output_bfd, | |
3163 | pr->u.section) | |
3164 | : pr->u.name), | |
3165 | howto->name, pr->addend, NULL, | |
3166 | (asection *) NULL, (bfd_vma) 0); | |
116c20d2 NC |
3167 | break; |
3168 | } | |
57402f1e | 3169 | ok = bfd_set_section_contents (flaginfo->output_bfd, o, |
116c20d2 NC |
3170 | (void *) buf, |
3171 | (file_ptr) p->offset, | |
3172 | size); | |
3173 | free (buf); | |
3174 | if (! ok) | |
3175 | return FALSE; | |
e135f41b NC |
3176 | } |
3177 | ||
57402f1e NC |
3178 | rel_size = obj_reloc_entry_size (flaginfo->output_bfd); |
3179 | if (bfd_seek (flaginfo->output_bfd, *reloff_ptr, SEEK_SET) != 0 | |
3180 | || bfd_bwrite (rel_ptr, rel_size, flaginfo->output_bfd) != rel_size) | |
b34976b6 | 3181 | return FALSE; |
e135f41b | 3182 | |
116c20d2 | 3183 | *reloff_ptr += rel_size; |
e135f41b | 3184 | |
116c20d2 NC |
3185 | /* Assert that the relocs have not run into the symbols, and that n |
3186 | the text relocs have not run into the data relocs. */ | |
57402f1e NC |
3187 | BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (flaginfo->output_bfd) |
3188 | && (reloff_ptr != &flaginfo->treloff | |
116c20d2 | 3189 | || (*reloff_ptr |
57402f1e | 3190 | <= obj_datasec (flaginfo->output_bfd)->rel_filepos))); |
e135f41b | 3191 | |
116c20d2 NC |
3192 | return TRUE; |
3193 | } | |
e135f41b | 3194 | |
116c20d2 NC |
3195 | /* Get the section corresponding to a reloc index. */ |
3196 | ||
3197 | static inline asection * | |
3198 | aout_reloc_type_to_section (bfd *abfd, int type) | |
3199 | { | |
3200 | switch (type) | |
e135f41b | 3201 | { |
116c20d2 NC |
3202 | case RTEXT: return obj_textsec (abfd); |
3203 | case RDATA: return obj_datasec (abfd); | |
3204 | case RBSS: return obj_bsssec (abfd); | |
3205 | case RABS: return bfd_abs_section_ptr; | |
3206 | case REXT: return bfd_und_section_ptr; | |
3207 | default: abort (); | |
e135f41b | 3208 | } |
e135f41b NC |
3209 | } |
3210 | ||
b34976b6 | 3211 | static bfd_boolean |
57402f1e | 3212 | pdp11_aout_link_input_section (struct aout_final_link_info *flaginfo, |
116c20d2 NC |
3213 | bfd *input_bfd, |
3214 | asection *input_section, | |
3215 | bfd_byte *relocs, | |
3216 | bfd_size_type rel_size, | |
3217 | bfd_byte *contents) | |
e135f41b | 3218 | { |
116c20d2 NC |
3219 | bfd_boolean (*check_dynamic_reloc) |
3220 | (struct bfd_link_info *, bfd *, asection *, | |
3221 | struct aout_link_hash_entry *, void *, bfd_byte *, bfd_boolean *, | |
3222 | bfd_vma *); | |
e135f41b | 3223 | bfd *output_bfd; |
116c20d2 NC |
3224 | bfd_boolean relocatable; |
3225 | struct external_nlist *syms; | |
e135f41b | 3226 | char *strings; |
116c20d2 | 3227 | struct aout_link_hash_entry **sym_hashes; |
e135f41b | 3228 | int *symbol_map; |
116c20d2 NC |
3229 | bfd_byte *rel; |
3230 | bfd_byte *rel_end; | |
e135f41b | 3231 | |
57402f1e | 3232 | output_bfd = flaginfo->output_bfd; |
116c20d2 | 3233 | check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc; |
e135f41b | 3234 | |
116c20d2 NC |
3235 | BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_SIZE); |
3236 | BFD_ASSERT (input_bfd->xvec->header_byteorder | |
3237 | == output_bfd->xvec->header_byteorder); | |
e135f41b | 3238 | |
0e1862bb | 3239 | relocatable = bfd_link_relocatable (flaginfo->info); |
116c20d2 NC |
3240 | syms = obj_aout_external_syms (input_bfd); |
3241 | strings = obj_aout_external_strings (input_bfd); | |
3242 | sym_hashes = obj_aout_sym_hashes (input_bfd); | |
57402f1e | 3243 | symbol_map = flaginfo->symbol_map; |
116c20d2 | 3244 | |
116c20d2 NC |
3245 | rel = relocs; |
3246 | rel_end = rel + rel_size; | |
3247 | for (; rel < rel_end; rel += RELOC_SIZE) | |
e135f41b | 3248 | { |
116c20d2 NC |
3249 | bfd_vma r_addr; |
3250 | int r_index; | |
3251 | int r_type; | |
3252 | int r_pcrel; | |
3253 | int r_extern; | |
3254 | reloc_howto_type *howto; | |
3255 | struct aout_link_hash_entry *h = NULL; | |
3256 | bfd_vma relocation; | |
3257 | bfd_reloc_status_type r; | |
3258 | int reloc_entry; | |
e135f41b | 3259 | |
116c20d2 NC |
3260 | reloc_entry = GET_WORD (input_bfd, (void *) rel); |
3261 | if (reloc_entry == 0) | |
e135f41b NC |
3262 | continue; |
3263 | ||
116c20d2 NC |
3264 | { |
3265 | unsigned int howto_idx; | |
e135f41b | 3266 | |
116c20d2 NC |
3267 | r_index = (reloc_entry & RIDXMASK) >> 4; |
3268 | r_type = reloc_entry & RTYPE; | |
3269 | r_pcrel = reloc_entry & RELFLG; | |
3270 | r_addr = (char *) rel - (char *) relocs; | |
e135f41b | 3271 | |
116c20d2 | 3272 | r_extern = (r_type == REXT); |
e135f41b | 3273 | |
116c20d2 NC |
3274 | howto_idx = r_pcrel; |
3275 | BFD_ASSERT (howto_idx < TABLE_SIZE (howto_table_pdp11)); | |
3276 | howto = howto_table_pdp11 + howto_idx; | |
3277 | } | |
3278 | ||
3279 | if (relocatable) | |
e135f41b | 3280 | { |
116c20d2 NC |
3281 | /* We are generating a relocatable output file, and must |
3282 | modify the reloc accordingly. */ | |
3283 | if (r_extern) | |
3284 | { | |
3285 | /* If we know the symbol this relocation is against, | |
3286 | convert it into a relocation against a section. This | |
3287 | is what the native linker does. */ | |
3288 | h = sym_hashes[r_index]; | |
3289 | if (h != NULL | |
3290 | && (h->root.type == bfd_link_hash_defined | |
3291 | || h->root.type == bfd_link_hash_defweak)) | |
3292 | { | |
3293 | asection *output_section; | |
e135f41b | 3294 | |
116c20d2 NC |
3295 | /* Compute a new r_index. */ |
3296 | output_section = h->root.u.def.section->output_section; | |
e135f41b | 3297 | if (output_section == obj_textsec (output_bfd)) |
116c20d2 | 3298 | r_type = N_TEXT; |
e135f41b | 3299 | else if (output_section == obj_datasec (output_bfd)) |
116c20d2 | 3300 | r_type = N_DATA; |
e135f41b | 3301 | else if (output_section == obj_bsssec (output_bfd)) |
116c20d2 | 3302 | r_type = N_BSS; |
e135f41b | 3303 | else |
116c20d2 | 3304 | r_type = N_ABS; |
e135f41b | 3305 | |
116c20d2 NC |
3306 | /* Add the symbol value and the section VMA to the |
3307 | addend stored in the contents. */ | |
3308 | relocation = (h->root.u.def.value | |
3309 | + output_section->vma | |
3310 | + h->root.u.def.section->output_offset); | |
e135f41b | 3311 | } |
116c20d2 | 3312 | else |
e135f41b | 3313 | { |
116c20d2 NC |
3314 | /* We must change r_index according to the symbol |
3315 | map. */ | |
3316 | r_index = symbol_map[r_index]; | |
e135f41b | 3317 | |
116c20d2 | 3318 | if (r_index == -1) |
e135f41b | 3319 | { |
116c20d2 | 3320 | if (h != NULL) |
e135f41b | 3321 | { |
116c20d2 | 3322 | /* We decided to strip this symbol, but it |
07d6d2b8 AM |
3323 | turns out that we can't. Note that we |
3324 | lose the other and desc information here. | |
3325 | I don't think that will ever matter for a | |
3326 | global symbol. */ | |
116c20d2 | 3327 | if (h->indx < 0) |
e135f41b | 3328 | { |
116c20d2 NC |
3329 | h->indx = -2; |
3330 | h->written = FALSE; | |
7686d77d | 3331 | if (!aout_link_write_other_symbol (&h->root.root, |
57402f1e | 3332 | flaginfo)) |
116c20d2 | 3333 | return FALSE; |
e135f41b | 3334 | } |
116c20d2 NC |
3335 | r_index = h->indx; |
3336 | } | |
3337 | else | |
3338 | { | |
3339 | const char *name; | |
3340 | ||
3341 | name = strings + GET_WORD (input_bfd, | |
3342 | syms[r_index].e_strx); | |
1a72702b AM |
3343 | (*flaginfo->info->callbacks->unattached_reloc) |
3344 | (flaginfo->info, name, input_bfd, input_section, | |
3345 | r_addr); | |
116c20d2 | 3346 | r_index = 0; |
e135f41b NC |
3347 | } |
3348 | } | |
116c20d2 NC |
3349 | |
3350 | relocation = 0; | |
e135f41b NC |
3351 | } |
3352 | ||
116c20d2 NC |
3353 | /* Write out the new r_index value. */ |
3354 | reloc_entry = GET_WORD (input_bfd, rel); | |
3355 | reloc_entry &= RIDXMASK; | |
3356 | reloc_entry |= r_index << 4; | |
3357 | PUT_WORD (input_bfd, reloc_entry, rel); | |
3358 | } | |
3359 | else | |
3360 | { | |
3361 | asection *section; | |
3362 | ||
3363 | /* This is a relocation against a section. We must | |
3364 | adjust by the amount that the section moved. */ | |
3365 | section = aout_reloc_type_to_section (input_bfd, r_type); | |
3366 | relocation = (section->output_section->vma | |
3367 | + section->output_offset | |
3368 | - section->vma); | |
3369 | } | |
3370 | ||
3371 | /* Change the address of the relocation. */ | |
3372 | fprintf (stderr, "TODO: change the address of the relocation\n"); | |
3373 | ||
3374 | /* Adjust a PC relative relocation by removing the reference | |
3375 | to the original address in the section and including the | |
3376 | reference to the new address. */ | |
3377 | if (r_pcrel) | |
3378 | relocation -= (input_section->output_section->vma | |
3379 | + input_section->output_offset | |
3380 | - input_section->vma); | |
3381 | ||
3382 | #ifdef MY_relocatable_reloc | |
3383 | MY_relocatable_reloc (howto, output_bfd, rel, relocation, r_addr); | |
3384 | #endif | |
3385 | ||
3386 | if (relocation == 0) | |
3387 | r = bfd_reloc_ok; | |
3388 | else | |
3389 | r = MY_relocate_contents (howto, | |
3390 | input_bfd, relocation, | |
3391 | contents + r_addr); | |
3392 | } | |
3393 | else | |
3394 | { | |
3395 | bfd_boolean hundef; | |
3396 | ||
3397 | /* We are generating an executable, and must do a full | |
3398 | relocation. */ | |
3399 | hundef = FALSE; | |
3400 | if (r_extern) | |
3401 | { | |
3402 | h = sym_hashes[r_index]; | |
3403 | ||
3404 | if (h != NULL | |
3405 | && (h->root.type == bfd_link_hash_defined | |
3406 | || h->root.type == bfd_link_hash_defweak)) | |
e135f41b | 3407 | { |
116c20d2 NC |
3408 | relocation = (h->root.u.def.value |
3409 | + h->root.u.def.section->output_section->vma | |
3410 | + h->root.u.def.section->output_offset); | |
e135f41b | 3411 | } |
116c20d2 NC |
3412 | else if (h != NULL |
3413 | && h->root.type == bfd_link_hash_undefweak) | |
3414 | relocation = 0; | |
e135f41b NC |
3415 | else |
3416 | { | |
116c20d2 NC |
3417 | hundef = TRUE; |
3418 | relocation = 0; | |
3419 | } | |
3420 | } | |
3421 | else | |
3422 | { | |
3423 | asection *section; | |
e135f41b | 3424 | |
116c20d2 NC |
3425 | section = aout_reloc_type_to_section (input_bfd, r_type); |
3426 | relocation = (section->output_section->vma | |
3427 | + section->output_offset | |
3428 | - section->vma); | |
3429 | if (r_pcrel) | |
3430 | relocation += input_section->vma; | |
3431 | } | |
e135f41b | 3432 | |
116c20d2 NC |
3433 | if (check_dynamic_reloc != NULL) |
3434 | { | |
3435 | bfd_boolean skip; | |
e135f41b | 3436 | |
116c20d2 | 3437 | if (! ((*check_dynamic_reloc) |
57402f1e | 3438 | (flaginfo->info, input_bfd, input_section, h, |
116c20d2 NC |
3439 | (void *) rel, contents, &skip, &relocation))) |
3440 | return FALSE; | |
3441 | if (skip) | |
3442 | continue; | |
3443 | } | |
3444 | ||
3445 | /* Now warn if a global symbol is undefined. We could not | |
07d6d2b8 AM |
3446 | do this earlier, because check_dynamic_reloc might want |
3447 | to skip this reloc. */ | |
0e1862bb | 3448 | if (hundef && ! bfd_link_pic (flaginfo->info)) |
116c20d2 NC |
3449 | { |
3450 | const char *name; | |
3451 | ||
3452 | if (h != NULL) | |
3453 | name = h->root.root.string; | |
3454 | else | |
3455 | name = strings + GET_WORD (input_bfd, syms[r_index].e_strx); | |
1a72702b AM |
3456 | (*flaginfo->info->callbacks->undefined_symbol) |
3457 | (flaginfo->info, name, input_bfd, input_section, | |
3458 | r_addr, TRUE); | |
e135f41b | 3459 | } |
116c20d2 NC |
3460 | |
3461 | r = MY_final_link_relocate (howto, | |
3462 | input_bfd, input_section, | |
3463 | contents, r_addr, relocation, | |
3464 | (bfd_vma) 0); | |
e135f41b NC |
3465 | } |
3466 | ||
116c20d2 | 3467 | if (r != bfd_reloc_ok) |
e135f41b | 3468 | { |
116c20d2 NC |
3469 | switch (r) |
3470 | { | |
3471 | default: | |
3472 | case bfd_reloc_outofrange: | |
3473 | abort (); | |
3474 | case bfd_reloc_overflow: | |
3475 | { | |
3476 | const char *name; | |
3477 | ||
3478 | if (h != NULL) | |
3479 | name = NULL; | |
3480 | else if (r_extern) | |
3481 | name = strings + GET_WORD (input_bfd, | |
3482 | syms[r_index].e_strx); | |
3483 | else | |
3484 | { | |
3485 | asection *s; | |
3486 | ||
3487 | s = aout_reloc_type_to_section (input_bfd, r_type); | |
3488 | name = bfd_section_name (input_bfd, s); | |
3489 | } | |
1a72702b AM |
3490 | (*flaginfo->info->callbacks->reloc_overflow) |
3491 | (flaginfo->info, (h ? &h->root : NULL), name, howto->name, | |
3492 | (bfd_vma) 0, input_bfd, input_section, r_addr); | |
116c20d2 NC |
3493 | } |
3494 | break; | |
3495 | } | |
e135f41b | 3496 | } |
e135f41b NC |
3497 | } |
3498 | ||
116c20d2 NC |
3499 | return TRUE; |
3500 | } | |
3501 | ||
3502 | /* Link an a.out section into the output file. */ | |
3503 | ||
3504 | static bfd_boolean | |
57402f1e | 3505 | aout_link_input_section (struct aout_final_link_info *flaginfo, |
116c20d2 NC |
3506 | bfd *input_bfd, |
3507 | asection *input_section, | |
3508 | file_ptr *reloff_ptr, | |
3509 | bfd_size_type rel_size) | |
3510 | { | |
3511 | bfd_size_type input_size; | |
3512 | void * relocs; | |
3513 | ||
3514 | /* Get the section contents. */ | |
3515 | input_size = input_section->size; | |
3516 | if (! bfd_get_section_contents (input_bfd, input_section, | |
57402f1e | 3517 | (void *) flaginfo->contents, |
116c20d2 NC |
3518 | (file_ptr) 0, input_size)) |
3519 | return FALSE; | |
3520 | ||
3521 | /* Read in the relocs if we haven't already done it. */ | |
3522 | if (aout_section_data (input_section) != NULL | |
3523 | && aout_section_data (input_section)->relocs != NULL) | |
3524 | relocs = aout_section_data (input_section)->relocs; | |
3525 | else | |
e135f41b | 3526 | { |
57402f1e | 3527 | relocs = flaginfo->relocs; |
116c20d2 NC |
3528 | if (rel_size > 0) |
3529 | { | |
3530 | if (bfd_seek (input_bfd, input_section->rel_filepos, SEEK_SET) != 0 | |
3531 | || bfd_bread (relocs, rel_size, input_bfd) != rel_size) | |
3532 | return FALSE; | |
3533 | } | |
3534 | } | |
e135f41b | 3535 | |
116c20d2 | 3536 | /* Relocate the section contents. */ |
57402f1e | 3537 | if (! pdp11_aout_link_input_section (flaginfo, input_bfd, input_section, |
116c20d2 | 3538 | (bfd_byte *) relocs, |
57402f1e | 3539 | rel_size, flaginfo->contents)) |
116c20d2 NC |
3540 | return FALSE; |
3541 | ||
3542 | /* Write out the section contents. */ | |
57402f1e | 3543 | if (! bfd_set_section_contents (flaginfo->output_bfd, |
116c20d2 | 3544 | input_section->output_section, |
57402f1e | 3545 | (void *) flaginfo->contents, |
116c20d2 NC |
3546 | (file_ptr) input_section->output_offset, |
3547 | input_size)) | |
3548 | return FALSE; | |
3549 | ||
3550 | /* If we are producing relocatable output, the relocs were | |
3551 | modified, and we now write them out. */ | |
0e1862bb | 3552 | if (bfd_link_relocatable (flaginfo->info) && rel_size > 0) |
116c20d2 | 3553 | { |
57402f1e | 3554 | if (bfd_seek (flaginfo->output_bfd, *reloff_ptr, SEEK_SET) != 0) |
116c20d2 | 3555 | return FALSE; |
57402f1e | 3556 | if (bfd_bwrite (relocs, rel_size, flaginfo->output_bfd) != rel_size) |
116c20d2 NC |
3557 | return FALSE; |
3558 | *reloff_ptr += rel_size; | |
3559 | ||
3560 | /* Assert that the relocs have not run into the symbols, and | |
3561 | that if these are the text relocs they have not run into the | |
3562 | data relocs. */ | |
57402f1e NC |
3563 | BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (flaginfo->output_bfd) |
3564 | && (reloff_ptr != &flaginfo->treloff | |
116c20d2 | 3565 | || (*reloff_ptr |
57402f1e | 3566 | <= obj_datasec (flaginfo->output_bfd)->rel_filepos))); |
116c20d2 NC |
3567 | } |
3568 | ||
3569 | return TRUE; | |
3570 | } | |
3571 | ||
3572 | /* Link an a.out input BFD into the output file. */ | |
3573 | ||
3574 | static bfd_boolean | |
57402f1e | 3575 | aout_link_input_bfd (struct aout_final_link_info *flaginfo, bfd *input_bfd) |
116c20d2 | 3576 | { |
116c20d2 NC |
3577 | BFD_ASSERT (bfd_get_format (input_bfd) == bfd_object); |
3578 | ||
3579 | /* If this is a dynamic object, it may need special handling. */ | |
3580 | if ((input_bfd->flags & DYNAMIC) != 0 | |
3581 | && aout_backend_info (input_bfd)->link_dynamic_object != NULL) | |
3582 | return ((*aout_backend_info (input_bfd)->link_dynamic_object) | |
57402f1e | 3583 | (flaginfo->info, input_bfd)); |
116c20d2 NC |
3584 | |
3585 | /* Get the symbols. We probably have them already, unless | |
57402f1e | 3586 | flaginfo->info->keep_memory is FALSE. */ |
116c20d2 NC |
3587 | if (! aout_get_external_symbols (input_bfd)) |
3588 | return FALSE; | |
3589 | ||
116c20d2 | 3590 | /* Write out the symbols and get a map of the new indices. The map |
57402f1e NC |
3591 | is placed into flaginfo->symbol_map. */ |
3592 | if (! aout_link_write_symbols (flaginfo, input_bfd)) | |
116c20d2 NC |
3593 | return FALSE; |
3594 | ||
3595 | /* Relocate and write out the sections. These functions use the | |
3596 | symbol map created by aout_link_write_symbols. The linker_mark | |
3597 | field will be set if these sections are to be included in the | |
3598 | link, which will normally be the case. */ | |
3599 | if (obj_textsec (input_bfd)->linker_mark) | |
3600 | { | |
57402f1e | 3601 | if (! aout_link_input_section (flaginfo, input_bfd, |
116c20d2 | 3602 | obj_textsec (input_bfd), |
57402f1e | 3603 | &flaginfo->treloff, |
116c20d2 NC |
3604 | exec_hdr (input_bfd)->a_trsize)) |
3605 | return FALSE; | |
3606 | } | |
3607 | if (obj_datasec (input_bfd)->linker_mark) | |
3608 | { | |
57402f1e | 3609 | if (! aout_link_input_section (flaginfo, input_bfd, |
116c20d2 | 3610 | obj_datasec (input_bfd), |
57402f1e | 3611 | &flaginfo->dreloff, |
116c20d2 | 3612 | exec_hdr (input_bfd)->a_drsize)) |
b34976b6 | 3613 | return FALSE; |
116c20d2 NC |
3614 | } |
3615 | ||
3616 | /* If we are not keeping memory, we don't need the symbols any | |
3617 | longer. We still need them if we are keeping memory, because the | |
3618 | strings in the hash table point into them. */ | |
57402f1e | 3619 | if (! flaginfo->info->keep_memory) |
116c20d2 NC |
3620 | { |
3621 | if (! aout_link_free_symbols (input_bfd)) | |
b34976b6 | 3622 | return FALSE; |
e135f41b NC |
3623 | } |
3624 | ||
b34976b6 | 3625 | return TRUE; |
e135f41b NC |
3626 | } |
3627 | ||
116c20d2 NC |
3628 | /* Do the final link step. This is called on the output BFD. The |
3629 | INFO structure should point to a list of BFDs linked through the | |
c72f2fb2 | 3630 | link.next field which can be used to find each BFD which takes part |
116c20d2 NC |
3631 | in the output. Also, each section in ABFD should point to a list |
3632 | of bfd_link_order structures which list all the input sections for | |
3633 | the output section. */ | |
e135f41b | 3634 | |
116c20d2 NC |
3635 | bfd_boolean |
3636 | NAME (aout, final_link) (bfd *abfd, | |
3637 | struct bfd_link_info *info, | |
3638 | void (*callback) (bfd *, file_ptr *, file_ptr *, file_ptr *)) | |
e135f41b | 3639 | { |
116c20d2 NC |
3640 | struct aout_final_link_info aout_info; |
3641 | bfd_boolean includes_hash_initialized = FALSE; | |
3642 | bfd *sub; | |
3643 | bfd_size_type trsize, drsize; | |
3644 | bfd_size_type max_contents_size; | |
3645 | bfd_size_type max_relocs_size; | |
3646 | bfd_size_type max_sym_count; | |
116c20d2 NC |
3647 | struct bfd_link_order *p; |
3648 | asection *o; | |
3649 | bfd_boolean have_link_order_relocs; | |
e135f41b | 3650 | |
0e1862bb | 3651 | if (bfd_link_pic (info)) |
116c20d2 | 3652 | abfd->flags |= DYNAMIC; |
e92d460e | 3653 | |
116c20d2 NC |
3654 | aout_info.info = info; |
3655 | aout_info.output_bfd = abfd; | |
3656 | aout_info.contents = NULL; | |
3657 | aout_info.relocs = NULL; | |
3658 | aout_info.symbol_map = NULL; | |
3659 | aout_info.output_syms = NULL; | |
e135f41b | 3660 | |
66eb6687 AM |
3661 | if (!bfd_hash_table_init_n (&aout_info.includes.root, |
3662 | aout_link_includes_newfunc, | |
3663 | sizeof (struct aout_link_includes_entry), | |
3664 | 251)) | |
116c20d2 NC |
3665 | goto error_return; |
3666 | includes_hash_initialized = TRUE; | |
3667 | ||
3668 | /* Figure out the largest section size. Also, if generating | |
3669 | relocatable output, count the relocs. */ | |
3670 | trsize = 0; | |
3671 | drsize = 0; | |
3672 | max_contents_size = 0; | |
3673 | max_relocs_size = 0; | |
3674 | max_sym_count = 0; | |
c72f2fb2 | 3675 | for (sub = info->input_bfds; sub != NULL; sub = sub->link.next) |
e135f41b | 3676 | { |
116c20d2 NC |
3677 | size_t sz; |
3678 | ||
0e1862bb | 3679 | if (bfd_link_relocatable (info)) |
e135f41b | 3680 | { |
116c20d2 NC |
3681 | if (bfd_get_flavour (sub) == bfd_target_aout_flavour) |
3682 | { | |
3683 | trsize += exec_hdr (sub)->a_trsize; | |
3684 | drsize += exec_hdr (sub)->a_drsize; | |
3685 | } | |
3686 | else | |
3687 | { | |
3688 | /* FIXME: We need to identify the .text and .data sections | |
3689 | and call get_reloc_upper_bound and canonicalize_reloc to | |
3690 | work out the number of relocs needed, and then multiply | |
3691 | by the reloc size. */ | |
4eca0228 | 3692 | _bfd_error_handler |
695344c0 | 3693 | /* xgettext:c-format */ |
871b3ab2 | 3694 | (_("%pB: relocatable link from %s to %s not supported"), |
dae82561 | 3695 | abfd, sub->xvec->name, abfd->xvec->name); |
116c20d2 NC |
3696 | bfd_set_error (bfd_error_invalid_operation); |
3697 | goto error_return; | |
3698 | } | |
e135f41b | 3699 | } |
e135f41b | 3700 | |
116c20d2 NC |
3701 | if (bfd_get_flavour (sub) == bfd_target_aout_flavour) |
3702 | { | |
3703 | sz = obj_textsec (sub)->size; | |
3704 | if (sz > max_contents_size) | |
3705 | max_contents_size = sz; | |
3706 | sz = obj_datasec (sub)->size; | |
3707 | if (sz > max_contents_size) | |
3708 | max_contents_size = sz; | |
e135f41b | 3709 | |
116c20d2 NC |
3710 | sz = exec_hdr (sub)->a_trsize; |
3711 | if (sz > max_relocs_size) | |
3712 | max_relocs_size = sz; | |
3713 | sz = exec_hdr (sub)->a_drsize; | |
3714 | if (sz > max_relocs_size) | |
3715 | max_relocs_size = sz; | |
e135f41b | 3716 | |
116c20d2 NC |
3717 | sz = obj_aout_external_sym_count (sub); |
3718 | if (sz > max_sym_count) | |
3719 | max_sym_count = sz; | |
3720 | } | |
e135f41b NC |
3721 | } |
3722 | ||
0e1862bb | 3723 | if (bfd_link_relocatable (info)) |
e135f41b | 3724 | { |
116c20d2 NC |
3725 | if (obj_textsec (abfd) != NULL) |
3726 | trsize += (_bfd_count_link_order_relocs (obj_textsec (abfd) | |
8423293d | 3727 | ->map_head.link_order) |
116c20d2 NC |
3728 | * obj_reloc_entry_size (abfd)); |
3729 | if (obj_datasec (abfd) != NULL) | |
3730 | drsize += (_bfd_count_link_order_relocs (obj_datasec (abfd) | |
8423293d | 3731 | ->map_head.link_order) |
116c20d2 | 3732 | * obj_reloc_entry_size (abfd)); |
e135f41b | 3733 | } |
e135f41b | 3734 | |
116c20d2 NC |
3735 | exec_hdr (abfd)->a_trsize = trsize; |
3736 | exec_hdr (abfd)->a_drsize = drsize; | |
3737 | exec_hdr (abfd)->a_entry = bfd_get_start_address (abfd); | |
3738 | ||
3739 | /* Adjust the section sizes and vmas according to the magic number. | |
3740 | This sets a_text, a_data and a_bss in the exec_hdr and sets the | |
3741 | filepos for each section. */ | |
3a8c4a5b | 3742 | if (! NAME (aout, adjust_sizes_and_vmas) (abfd)) |
116c20d2 NC |
3743 | goto error_return; |
3744 | ||
3745 | /* The relocation and symbol file positions differ among a.out | |
3746 | targets. We are passed a callback routine from the backend | |
3747 | specific code to handle this. | |
3748 | FIXME: At this point we do not know how much space the symbol | |
3749 | table will require. This will not work for any (nonstandard) | |
3750 | a.out target that needs to know the symbol table size before it | |
dc12032b | 3751 | can compute the relocation file positions. */ |
116c20d2 NC |
3752 | (*callback) (abfd, &aout_info.treloff, &aout_info.dreloff, |
3753 | &aout_info.symoff); | |
3754 | obj_textsec (abfd)->rel_filepos = aout_info.treloff; | |
3755 | obj_datasec (abfd)->rel_filepos = aout_info.dreloff; | |
3756 | obj_sym_filepos (abfd) = aout_info.symoff; | |
3757 | ||
3758 | /* We keep a count of the symbols as we output them. */ | |
3759 | obj_aout_external_sym_count (abfd) = 0; | |
3760 | ||
3761 | /* We accumulate the string table as we write out the symbols. */ | |
3762 | aout_info.strtab = _bfd_stringtab_init (); | |
3763 | if (aout_info.strtab == NULL) | |
3764 | goto error_return; | |
3765 | ||
3766 | /* Allocate buffers to hold section contents and relocs. */ | |
3767 | aout_info.contents = bfd_malloc (max_contents_size); | |
3768 | aout_info.relocs = bfd_malloc (max_relocs_size); | |
3769 | aout_info.symbol_map = bfd_malloc (max_sym_count * sizeof (int *)); | |
3770 | aout_info.output_syms = bfd_malloc ((max_sym_count + 1) | |
3771 | * sizeof (struct external_nlist)); | |
3772 | if ((aout_info.contents == NULL && max_contents_size != 0) | |
3773 | || (aout_info.relocs == NULL && max_relocs_size != 0) | |
3774 | || (aout_info.symbol_map == NULL && max_sym_count != 0) | |
3775 | || aout_info.output_syms == NULL) | |
3776 | goto error_return; | |
3777 | ||
3778 | /* If we have a symbol named __DYNAMIC, force it out now. This is | |
3779 | required by SunOS. Doing this here rather than in sunos.c is a | |
3780 | hack, but it's easier than exporting everything which would be | |
3781 | needed. */ | |
3782 | { | |
3783 | struct aout_link_hash_entry *h; | |
3784 | ||
3785 | h = aout_link_hash_lookup (aout_hash_table (info), "__DYNAMIC", | |
3786 | FALSE, FALSE, FALSE); | |
3787 | if (h != NULL) | |
7686d77d | 3788 | aout_link_write_other_symbol (&h->root.root, &aout_info); |
116c20d2 NC |
3789 | } |
3790 | ||
3791 | /* The most time efficient way to do the link would be to read all | |
3792 | the input object files into memory and then sort out the | |
3793 | information into the output file. Unfortunately, that will | |
3794 | probably use too much memory. Another method would be to step | |
3795 | through everything that composes the text section and write it | |
3796 | out, and then everything that composes the data section and write | |
3797 | it out, and then write out the relocs, and then write out the | |
3798 | symbols. Unfortunately, that requires reading stuff from each | |
3799 | input file several times, and we will not be able to keep all the | |
3800 | input files open simultaneously, and reopening them will be slow. | |
3801 | ||
3802 | What we do is basically process one input file at a time. We do | |
3803 | everything we need to do with an input file once--copy over the | |
3804 | section contents, handle the relocation information, and write | |
3805 | out the symbols--and then we throw away the information we read | |
3806 | from it. This approach requires a lot of lseeks of the output | |
3807 | file, which is unfortunate but still faster than reopening a lot | |
3808 | of files. | |
3809 | ||
3810 | We use the output_has_begun field of the input BFDs to see | |
3811 | whether we have already handled it. */ | |
c72f2fb2 | 3812 | for (sub = info->input_bfds; sub != NULL; sub = sub->link.next) |
116c20d2 NC |
3813 | sub->output_has_begun = FALSE; |
3814 | ||
3815 | /* Mark all sections which are to be included in the link. This | |
3816 | will normally be every section. We need to do this so that we | |
3817 | can identify any sections which the linker has decided to not | |
3818 | include. */ | |
3819 | for (o = abfd->sections; o != NULL; o = o->next) | |
e135f41b | 3820 | { |
8423293d | 3821 | for (p = o->map_head.link_order; p != NULL; p = p->next) |
116c20d2 NC |
3822 | if (p->type == bfd_indirect_link_order) |
3823 | p->u.indirect.section->linker_mark = TRUE; | |
e135f41b NC |
3824 | } |
3825 | ||
116c20d2 NC |
3826 | have_link_order_relocs = FALSE; |
3827 | for (o = abfd->sections; o != NULL; o = o->next) | |
3828 | { | |
8423293d | 3829 | for (p = o->map_head.link_order; |
116c20d2 NC |
3830 | p != NULL; |
3831 | p = p->next) | |
3832 | { | |
3833 | if (p->type == bfd_indirect_link_order | |
3834 | && (bfd_get_flavour (p->u.indirect.section->owner) | |
3835 | == bfd_target_aout_flavour)) | |
3836 | { | |
3837 | bfd *input_bfd; | |
e135f41b | 3838 | |
116c20d2 NC |
3839 | input_bfd = p->u.indirect.section->owner; |
3840 | if (! input_bfd->output_has_begun) | |
3841 | { | |
3842 | if (! aout_link_input_bfd (&aout_info, input_bfd)) | |
3843 | goto error_return; | |
3844 | input_bfd->output_has_begun = TRUE; | |
3845 | } | |
3846 | } | |
3847 | else if (p->type == bfd_section_reloc_link_order | |
3848 | || p->type == bfd_symbol_reloc_link_order) | |
3849 | /* These are handled below. */ | |
3850 | have_link_order_relocs = TRUE; | |
3851 | else | |
3852 | { | |
3853 | if (! _bfd_default_link_order (abfd, info, o, p)) | |
3854 | goto error_return; | |
3855 | } | |
3856 | } | |
3857 | } | |
e135f41b | 3858 | |
116c20d2 | 3859 | /* Write out any symbols that we have not already written out. */ |
7686d77d AM |
3860 | bfd_hash_traverse (&info->hash->table, |
3861 | aout_link_write_other_symbol, | |
3862 | &aout_info); | |
e135f41b | 3863 | |
116c20d2 NC |
3864 | /* Now handle any relocs we were asked to create by the linker. |
3865 | These did not come from any input file. We must do these after | |
3866 | we have written out all the symbols, so that we know the symbol | |
3867 | indices to use. */ | |
3868 | if (have_link_order_relocs) | |
e135f41b | 3869 | { |
116c20d2 | 3870 | for (o = abfd->sections; o != NULL; o = o->next) |
e135f41b | 3871 | { |
8423293d | 3872 | for (p = o->map_head.link_order; |
116c20d2 NC |
3873 | p != NULL; |
3874 | p = p->next) | |
3875 | { | |
3876 | if (p->type == bfd_section_reloc_link_order | |
3877 | || p->type == bfd_symbol_reloc_link_order) | |
3878 | { | |
3879 | if (! aout_link_reloc_link_order (&aout_info, o, p)) | |
3880 | goto error_return; | |
3881 | } | |
3882 | } | |
e135f41b NC |
3883 | } |
3884 | } | |
3885 | ||
116c20d2 NC |
3886 | if (aout_info.contents != NULL) |
3887 | { | |
3888 | free (aout_info.contents); | |
3889 | aout_info.contents = NULL; | |
3890 | } | |
3891 | if (aout_info.relocs != NULL) | |
3892 | { | |
3893 | free (aout_info.relocs); | |
3894 | aout_info.relocs = NULL; | |
3895 | } | |
3896 | if (aout_info.symbol_map != NULL) | |
3897 | { | |
3898 | free (aout_info.symbol_map); | |
3899 | aout_info.symbol_map = NULL; | |
3900 | } | |
3901 | if (aout_info.output_syms != NULL) | |
3902 | { | |
3903 | free (aout_info.output_syms); | |
3904 | aout_info.output_syms = NULL; | |
3905 | } | |
3906 | if (includes_hash_initialized) | |
3907 | { | |
3908 | bfd_hash_table_free (&aout_info.includes.root); | |
3909 | includes_hash_initialized = FALSE; | |
3910 | } | |
e135f41b | 3911 | |
116c20d2 NC |
3912 | /* Finish up any dynamic linking we may be doing. */ |
3913 | if (aout_backend_info (abfd)->finish_dynamic_link != NULL) | |
3914 | { | |
3915 | if (! (*aout_backend_info (abfd)->finish_dynamic_link) (abfd, info)) | |
3916 | goto error_return; | |
3917 | } | |
e135f41b | 3918 | |
116c20d2 NC |
3919 | /* Update the header information. */ |
3920 | abfd->symcount = obj_aout_external_sym_count (abfd); | |
3921 | exec_hdr (abfd)->a_syms = abfd->symcount * EXTERNAL_NLIST_SIZE; | |
3922 | obj_str_filepos (abfd) = obj_sym_filepos (abfd) + exec_hdr (abfd)->a_syms; | |
3923 | obj_textsec (abfd)->reloc_count = | |
3924 | exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd); | |
3925 | obj_datasec (abfd)->reloc_count = | |
3926 | exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd); | |
3927 | ||
3928 | /* Write out the string table, unless there are no symbols. */ | |
3929 | if (abfd->symcount > 0) | |
e135f41b | 3930 | { |
116c20d2 NC |
3931 | if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0 |
3932 | || ! emit_stringtab (abfd, aout_info.strtab)) | |
3933 | goto error_return; | |
3934 | } | |
3935 | else if (obj_textsec (abfd)->reloc_count == 0 | |
3936 | && obj_datasec (abfd)->reloc_count == 0) | |
3937 | { | |
3938 | bfd_byte b; | |
e135f41b | 3939 | |
116c20d2 NC |
3940 | b = 0; |
3941 | if (bfd_seek (abfd, | |
3942 | (file_ptr) (obj_datasec (abfd)->filepos | |
3943 | + exec_hdr (abfd)->a_data | |
3944 | - 1), | |
3945 | SEEK_SET) != 0 | |
3946 | || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1) | |
3947 | goto error_return; | |
e135f41b NC |
3948 | } |
3949 | ||
b34976b6 | 3950 | return TRUE; |
e135f41b | 3951 | |
116c20d2 NC |
3952 | error_return: |
3953 | if (aout_info.contents != NULL) | |
3954 | free (aout_info.contents); | |
3955 | if (aout_info.relocs != NULL) | |
3956 | free (aout_info.relocs); | |
3957 | if (aout_info.symbol_map != NULL) | |
3958 | free (aout_info.symbol_map); | |
3959 | if (aout_info.output_syms != NULL) | |
3960 | free (aout_info.output_syms); | |
3961 | if (includes_hash_initialized) | |
3962 | bfd_hash_table_free (&aout_info.includes.root); | |
3963 | return FALSE; | |
e135f41b NC |
3964 | } |
3965 | ||
116c20d2 NC |
3966 | /* Adjust and write out the symbols for an a.out file. Set the new |
3967 | symbol indices into a symbol_map. */ | |
3968 | ||
b34976b6 | 3969 | static bfd_boolean |
57402f1e | 3970 | aout_link_write_symbols (struct aout_final_link_info *flaginfo, bfd *input_bfd) |
e135f41b | 3971 | { |
e135f41b | 3972 | bfd *output_bfd; |
116c20d2 | 3973 | bfd_size_type sym_count; |
e135f41b | 3974 | char *strings; |
116c20d2 NC |
3975 | enum bfd_link_strip strip; |
3976 | enum bfd_link_discard discard; | |
3977 | struct external_nlist *outsym; | |
3978 | bfd_size_type strtab_index; | |
3979 | struct external_nlist *sym; | |
3980 | struct external_nlist *sym_end; | |
3981 | struct aout_link_hash_entry **sym_hash; | |
e135f41b | 3982 | int *symbol_map; |
116c20d2 NC |
3983 | bfd_boolean pass; |
3984 | bfd_boolean skip_next; | |
e135f41b | 3985 | |
57402f1e | 3986 | output_bfd = flaginfo->output_bfd; |
116c20d2 | 3987 | sym_count = obj_aout_external_sym_count (input_bfd); |
e135f41b | 3988 | strings = obj_aout_external_strings (input_bfd); |
57402f1e NC |
3989 | strip = flaginfo->info->strip; |
3990 | discard = flaginfo->info->discard; | |
3991 | outsym = flaginfo->output_syms; | |
e135f41b | 3992 | |
116c20d2 NC |
3993 | /* First write out a symbol for this object file, unless we are |
3994 | discarding such symbols. */ | |
3995 | if (strip != strip_all | |
3996 | && (strip != strip_some | |
57402f1e | 3997 | || bfd_hash_lookup (flaginfo->info->keep_hash, input_bfd->filename, |
116c20d2 NC |
3998 | FALSE, FALSE) != NULL) |
3999 | && discard != discard_all) | |
4000 | { | |
4001 | H_PUT_8 (output_bfd, N_TEXT, outsym->e_type); | |
57402f1e | 4002 | strtab_index = add_to_stringtab (output_bfd, flaginfo->strtab, |
116c20d2 NC |
4003 | input_bfd->filename, FALSE); |
4004 | if (strtab_index == (bfd_size_type) -1) | |
4005 | return FALSE; | |
4006 | PUT_WORD (output_bfd, strtab_index, outsym->e_strx); | |
4007 | PUT_WORD (output_bfd, | |
4008 | (bfd_get_section_vma (output_bfd, | |
4009 | obj_textsec (input_bfd)->output_section) | |
4010 | + obj_textsec (input_bfd)->output_offset), | |
4011 | outsym->e_value); | |
4012 | ++obj_aout_external_sym_count (output_bfd); | |
4013 | ++outsym; | |
4014 | } | |
4015 | ||
4016 | pass = FALSE; | |
4017 | skip_next = FALSE; | |
4018 | sym = obj_aout_external_syms (input_bfd); | |
4019 | sym_end = sym + sym_count; | |
4020 | sym_hash = obj_aout_sym_hashes (input_bfd); | |
57402f1e | 4021 | symbol_map = flaginfo->symbol_map; |
116c20d2 NC |
4022 | memset (symbol_map, 0, (size_t) sym_count * sizeof *symbol_map); |
4023 | for (; sym < sym_end; sym++, sym_hash++, symbol_map++) | |
e135f41b | 4024 | { |
116c20d2 NC |
4025 | const char *name; |
4026 | int type; | |
4027 | struct aout_link_hash_entry *h; | |
4028 | bfd_boolean skip; | |
4029 | asection *symsec; | |
4030 | bfd_vma val = 0; | |
4031 | bfd_boolean copy; | |
e135f41b | 4032 | |
116c20d2 | 4033 | /* We set *symbol_map to 0 above for all symbols. If it has |
07d6d2b8 AM |
4034 | already been set to -1 for this symbol, it means that we are |
4035 | discarding it because it appears in a duplicate header file. | |
4036 | See the N_BINCL code below. */ | |
116c20d2 | 4037 | if (*symbol_map == -1) |
e135f41b NC |
4038 | continue; |
4039 | ||
116c20d2 | 4040 | /* Initialize *symbol_map to -1, which means that the symbol was |
07d6d2b8 AM |
4041 | not copied into the output file. We will change it later if |
4042 | we do copy the symbol over. */ | |
116c20d2 | 4043 | *symbol_map = -1; |
e135f41b | 4044 | |
116c20d2 NC |
4045 | type = H_GET_8 (input_bfd, sym->e_type); |
4046 | name = strings + GET_WORD (input_bfd, sym->e_strx); | |
e135f41b | 4047 | |
116c20d2 | 4048 | h = NULL; |
e135f41b | 4049 | |
116c20d2 | 4050 | if (pass) |
e135f41b | 4051 | { |
116c20d2 NC |
4052 | /* Pass this symbol through. It is the target of an |
4053 | indirect or warning symbol. */ | |
4054 | val = GET_WORD (input_bfd, sym->e_value); | |
4055 | pass = FALSE; | |
4056 | } | |
4057 | else if (skip_next) | |
4058 | { | |
4059 | /* Skip this symbol, which is the target of an indirect | |
4060 | symbol that we have changed to no longer be an indirect | |
4061 | symbol. */ | |
4062 | skip_next = FALSE; | |
4063 | continue; | |
4064 | } | |
4065 | else | |
4066 | { | |
4067 | struct aout_link_hash_entry *hresolve; | |
e135f41b | 4068 | |
116c20d2 NC |
4069 | /* We have saved the hash table entry for this symbol, if |
4070 | there is one. Note that we could just look it up again | |
4071 | in the hash table, provided we first check that it is an | |
4072 | external symbol. */ | |
4073 | h = *sym_hash; | |
e135f41b | 4074 | |
116c20d2 | 4075 | /* Use the name from the hash table, in case the symbol was |
07d6d2b8 | 4076 | wrapped. */ |
116c20d2 NC |
4077 | if (h != NULL) |
4078 | name = h->root.root.string; | |
e135f41b | 4079 | |
116c20d2 NC |
4080 | /* If this is an indirect or warning symbol, then change |
4081 | hresolve to the base symbol. We also change *sym_hash so | |
4082 | that the relocation routines relocate against the real | |
4083 | symbol. */ | |
4084 | hresolve = h; | |
4085 | if (h != NULL | |
4086 | && (h->root.type == bfd_link_hash_indirect | |
4087 | || h->root.type == bfd_link_hash_warning)) | |
4088 | { | |
4089 | hresolve = (struct aout_link_hash_entry *) h->root.u.i.link; | |
4090 | while (hresolve->root.type == bfd_link_hash_indirect | |
4091 | || hresolve->root.type == bfd_link_hash_warning) | |
4092 | hresolve = ((struct aout_link_hash_entry *) | |
4093 | hresolve->root.u.i.link); | |
4094 | *sym_hash = hresolve; | |
4095 | } | |
e135f41b | 4096 | |
116c20d2 NC |
4097 | /* If the symbol has already been written out, skip it. */ |
4098 | if (h != NULL | |
4099 | && h->root.type != bfd_link_hash_warning | |
4100 | && h->written) | |
4101 | { | |
4102 | if ((type & N_TYPE) == N_INDR | |
4103 | || type == N_WARNING) | |
4104 | skip_next = TRUE; | |
4105 | *symbol_map = h->indx; | |
4106 | continue; | |
4107 | } | |
e135f41b | 4108 | |
116c20d2 NC |
4109 | /* See if we are stripping this symbol. */ |
4110 | skip = FALSE; | |
4111 | switch (strip) | |
4112 | { | |
4113 | case strip_none: | |
4114 | break; | |
4115 | case strip_debugger: | |
4116 | if ((type & N_STAB) != 0) | |
4117 | skip = TRUE; | |
4118 | break; | |
4119 | case strip_some: | |
57402f1e | 4120 | if (bfd_hash_lookup (flaginfo->info->keep_hash, name, FALSE, FALSE) |
116c20d2 NC |
4121 | == NULL) |
4122 | skip = TRUE; | |
4123 | break; | |
4124 | case strip_all: | |
4125 | skip = TRUE; | |
4126 | break; | |
e135f41b | 4127 | } |
116c20d2 | 4128 | if (skip) |
e135f41b | 4129 | { |
116c20d2 NC |
4130 | if (h != NULL) |
4131 | h->written = TRUE; | |
4132 | continue; | |
4133 | } | |
e135f41b | 4134 | |
116c20d2 NC |
4135 | /* Get the value of the symbol. */ |
4136 | if ((type & N_TYPE) == N_TEXT | |
4137 | || type == N_WEAKT) | |
4138 | symsec = obj_textsec (input_bfd); | |
4139 | else if ((type & N_TYPE) == N_DATA | |
4140 | || type == N_WEAKD) | |
4141 | symsec = obj_datasec (input_bfd); | |
4142 | else if ((type & N_TYPE) == N_BSS | |
4143 | || type == N_WEAKB) | |
4144 | symsec = obj_bsssec (input_bfd); | |
4145 | else if ((type & N_TYPE) == N_ABS | |
4146 | || type == N_WEAKA) | |
4147 | symsec = bfd_abs_section_ptr; | |
4148 | else if (((type & N_TYPE) == N_INDR | |
4149 | && (hresolve == NULL | |
4150 | || (hresolve->root.type != bfd_link_hash_defined | |
4151 | && hresolve->root.type != bfd_link_hash_defweak | |
4152 | && hresolve->root.type != bfd_link_hash_common))) | |
4153 | || type == N_WARNING) | |
4154 | { | |
4155 | /* Pass the next symbol through unchanged. The | |
4156 | condition above for indirect symbols is so that if | |
4157 | the indirect symbol was defined, we output it with | |
4158 | the correct definition so the debugger will | |
4159 | understand it. */ | |
4160 | pass = TRUE; | |
4161 | val = GET_WORD (input_bfd, sym->e_value); | |
4162 | symsec = NULL; | |
4163 | } | |
4164 | else if ((type & N_STAB) != 0) | |
4165 | { | |
4166 | val = GET_WORD (input_bfd, sym->e_value); | |
4167 | symsec = NULL; | |
e135f41b | 4168 | } |
116c20d2 NC |
4169 | else |
4170 | { | |
4171 | /* If we get here with an indirect symbol, it means that | |
4172 | we are outputting it with a real definition. In such | |
4173 | a case we do not want to output the next symbol, | |
4174 | which is the target of the indirection. */ | |
4175 | if ((type & N_TYPE) == N_INDR) | |
4176 | skip_next = TRUE; | |
e135f41b | 4177 | |
116c20d2 | 4178 | symsec = NULL; |
e135f41b | 4179 | |
116c20d2 NC |
4180 | /* We need to get the value from the hash table. We use |
4181 | hresolve so that if we have defined an indirect | |
4182 | symbol we output the final definition. */ | |
4183 | if (h == NULL) | |
4184 | { | |
4185 | switch (type & N_TYPE) | |
4186 | { | |
4187 | case N_SETT: | |
4188 | symsec = obj_textsec (input_bfd); | |
4189 | break; | |
4190 | case N_SETD: | |
4191 | symsec = obj_datasec (input_bfd); | |
4192 | break; | |
4193 | case N_SETB: | |
4194 | symsec = obj_bsssec (input_bfd); | |
4195 | break; | |
4196 | case N_SETA: | |
4197 | symsec = bfd_abs_section_ptr; | |
4198 | break; | |
4199 | default: | |
4200 | val = 0; | |
4201 | break; | |
4202 | } | |
4203 | } | |
4204 | else if (hresolve->root.type == bfd_link_hash_defined | |
4205 | || hresolve->root.type == bfd_link_hash_defweak) | |
4206 | { | |
4207 | asection *input_section; | |
4208 | asection *output_section; | |
e135f41b | 4209 | |
116c20d2 NC |
4210 | /* This case usually means a common symbol which was |
4211 | turned into a defined symbol. */ | |
4212 | input_section = hresolve->root.u.def.section; | |
4213 | output_section = input_section->output_section; | |
4214 | BFD_ASSERT (bfd_is_abs_section (output_section) | |
4215 | || output_section->owner == output_bfd); | |
4216 | val = (hresolve->root.u.def.value | |
4217 | + bfd_get_section_vma (output_bfd, output_section) | |
4218 | + input_section->output_offset); | |
e135f41b | 4219 | |
116c20d2 NC |
4220 | /* Get the correct type based on the section. If |
4221 | this is a constructed set, force it to be | |
4222 | globally visible. */ | |
4223 | if (type == N_SETT | |
4224 | || type == N_SETD | |
4225 | || type == N_SETB | |
4226 | || type == N_SETA) | |
4227 | type |= N_EXT; | |
e135f41b | 4228 | |
116c20d2 | 4229 | type &=~ N_TYPE; |
e135f41b | 4230 | |
116c20d2 NC |
4231 | if (output_section == obj_textsec (output_bfd)) |
4232 | type |= (hresolve->root.type == bfd_link_hash_defined | |
4233 | ? N_TEXT | |
4234 | : N_WEAKT); | |
4235 | else if (output_section == obj_datasec (output_bfd)) | |
4236 | type |= (hresolve->root.type == bfd_link_hash_defined | |
4237 | ? N_DATA | |
4238 | : N_WEAKD); | |
4239 | else if (output_section == obj_bsssec (output_bfd)) | |
4240 | type |= (hresolve->root.type == bfd_link_hash_defined | |
4241 | ? N_BSS | |
4242 | : N_WEAKB); | |
4243 | else | |
4244 | type |= (hresolve->root.type == bfd_link_hash_defined | |
4245 | ? N_ABS | |
4246 | : N_WEAKA); | |
e135f41b | 4247 | } |
116c20d2 NC |
4248 | else if (hresolve->root.type == bfd_link_hash_common) |
4249 | val = hresolve->root.u.c.size; | |
4250 | else if (hresolve->root.type == bfd_link_hash_undefweak) | |
e135f41b | 4251 | { |
116c20d2 NC |
4252 | val = 0; |
4253 | type = N_WEAKU; | |
e135f41b | 4254 | } |
116c20d2 NC |
4255 | else |
4256 | val = 0; | |
e135f41b | 4257 | } |
116c20d2 NC |
4258 | if (symsec != NULL) |
4259 | val = (symsec->output_section->vma | |
4260 | + symsec->output_offset | |
4261 | + (GET_WORD (input_bfd, sym->e_value) | |
4262 | - symsec->vma)); | |
e135f41b | 4263 | |
116c20d2 NC |
4264 | /* If this is a global symbol set the written flag, and if |
4265 | it is a local symbol see if we should discard it. */ | |
4266 | if (h != NULL) | |
e135f41b | 4267 | { |
116c20d2 NC |
4268 | h->written = TRUE; |
4269 | h->indx = obj_aout_external_sym_count (output_bfd); | |
e135f41b | 4270 | } |
116c20d2 NC |
4271 | else if ((type & N_TYPE) != N_SETT |
4272 | && (type & N_TYPE) != N_SETD | |
4273 | && (type & N_TYPE) != N_SETB | |
4274 | && (type & N_TYPE) != N_SETA) | |
e135f41b | 4275 | { |
116c20d2 NC |
4276 | switch (discard) |
4277 | { | |
4278 | case discard_none: | |
4279 | case discard_sec_merge: | |
4280 | break; | |
4281 | case discard_l: | |
4282 | if ((type & N_STAB) == 0 | |
4283 | && bfd_is_local_label_name (input_bfd, name)) | |
4284 | skip = TRUE; | |
4285 | break; | |
4286 | case discard_all: | |
4287 | skip = TRUE; | |
4288 | break; | |
4289 | } | |
4290 | if (skip) | |
4291 | { | |
4292 | pass = FALSE; | |
4293 | continue; | |
4294 | } | |
e135f41b NC |
4295 | } |
4296 | ||
116c20d2 NC |
4297 | /* An N_BINCL symbol indicates the start of the stabs |
4298 | entries for a header file. We need to scan ahead to the | |
4299 | next N_EINCL symbol, ignoring nesting, adding up all the | |
4300 | characters in the symbol names, not including the file | |
4301 | numbers in types (the first number after an open | |
4302 | parenthesis). */ | |
4303 | if (type == N_BINCL) | |
e135f41b | 4304 | { |
116c20d2 NC |
4305 | struct external_nlist *incl_sym; |
4306 | int nest; | |
4307 | struct aout_link_includes_entry *incl_entry; | |
4308 | struct aout_link_includes_totals *t; | |
e135f41b | 4309 | |
116c20d2 NC |
4310 | val = 0; |
4311 | nest = 0; | |
4312 | for (incl_sym = sym + 1; incl_sym < sym_end; incl_sym++) | |
4313 | { | |
4314 | int incl_type; | |
e135f41b | 4315 | |
116c20d2 NC |
4316 | incl_type = H_GET_8 (input_bfd, incl_sym->e_type); |
4317 | if (incl_type == N_EINCL) | |
4318 | { | |
4319 | if (nest == 0) | |
4320 | break; | |
4321 | --nest; | |
4322 | } | |
4323 | else if (incl_type == N_BINCL) | |
4324 | ++nest; | |
4325 | else if (nest == 0) | |
4326 | { | |
4327 | const char *s; | |
e135f41b | 4328 | |
116c20d2 NC |
4329 | s = strings + GET_WORD (input_bfd, incl_sym->e_strx); |
4330 | for (; *s != '\0'; s++) | |
4331 | { | |
4332 | val += *s; | |
4333 | if (*s == '(') | |
4334 | { | |
4335 | /* Skip the file number. */ | |
4336 | ++s; | |
4337 | while (ISDIGIT (*s)) | |
4338 | ++s; | |
4339 | --s; | |
4340 | } | |
4341 | } | |
4342 | } | |
4343 | } | |
e135f41b | 4344 | |
116c20d2 | 4345 | /* If we have already included a header file with the |
07d6d2b8 AM |
4346 | same value, then replace this one with an N_EXCL |
4347 | symbol. */ | |
57402f1e NC |
4348 | copy = ! flaginfo->info->keep_memory; |
4349 | incl_entry = aout_link_includes_lookup (&flaginfo->includes, | |
116c20d2 NC |
4350 | name, TRUE, copy); |
4351 | if (incl_entry == NULL) | |
4352 | return FALSE; | |
4353 | for (t = incl_entry->totals; t != NULL; t = t->next) | |
4354 | if (t->total == val) | |
4355 | break; | |
4356 | if (t == NULL) | |
4357 | { | |
4358 | /* This is the first time we have seen this header | |
07d6d2b8 | 4359 | file with this set of stabs strings. */ |
57402f1e | 4360 | t = bfd_hash_allocate (&flaginfo->includes.root, |
116c20d2 NC |
4361 | sizeof *t); |
4362 | if (t == NULL) | |
4363 | return FALSE; | |
4364 | t->total = val; | |
4365 | t->next = incl_entry->totals; | |
4366 | incl_entry->totals = t; | |
4367 | } | |
4368 | else | |
4369 | { | |
4370 | int *incl_map; | |
e135f41b | 4371 | |
116c20d2 | 4372 | /* This is a duplicate header file. We must change |
07d6d2b8 AM |
4373 | it to be an N_EXCL entry, and mark all the |
4374 | included symbols to prevent outputting them. */ | |
116c20d2 | 4375 | type = N_EXCL; |
e135f41b | 4376 | |
116c20d2 NC |
4377 | nest = 0; |
4378 | for (incl_sym = sym + 1, incl_map = symbol_map + 1; | |
4379 | incl_sym < sym_end; | |
4380 | incl_sym++, incl_map++) | |
4381 | { | |
4382 | int incl_type; | |
e135f41b | 4383 | |
116c20d2 NC |
4384 | incl_type = H_GET_8 (input_bfd, incl_sym->e_type); |
4385 | if (incl_type == N_EINCL) | |
4386 | { | |
4387 | if (nest == 0) | |
4388 | { | |
4389 | *incl_map = -1; | |
4390 | break; | |
4391 | } | |
4392 | --nest; | |
4393 | } | |
4394 | else if (incl_type == N_BINCL) | |
4395 | ++nest; | |
4396 | else if (nest == 0) | |
4397 | *incl_map = -1; | |
4398 | } | |
4399 | } | |
4400 | } | |
e135f41b | 4401 | } |
e135f41b | 4402 | |
116c20d2 NC |
4403 | /* Copy this symbol into the list of symbols we are going to |
4404 | write out. */ | |
4405 | H_PUT_8 (output_bfd, type, outsym->e_type); | |
4406 | copy = FALSE; | |
57402f1e | 4407 | if (! flaginfo->info->keep_memory) |
e135f41b | 4408 | { |
116c20d2 NC |
4409 | /* name points into a string table which we are going to |
4410 | free. If there is a hash table entry, use that string. | |
4411 | Otherwise, copy name into memory. */ | |
4412 | if (h != NULL) | |
4413 | name = h->root.root.string; | |
4414 | else | |
4415 | copy = TRUE; | |
e135f41b | 4416 | } |
57402f1e | 4417 | strtab_index = add_to_stringtab (output_bfd, flaginfo->strtab, |
116c20d2 NC |
4418 | name, copy); |
4419 | if (strtab_index == (bfd_size_type) -1) | |
4420 | return FALSE; | |
4421 | PUT_WORD (output_bfd, strtab_index, outsym->e_strx); | |
4422 | PUT_WORD (output_bfd, val, outsym->e_value); | |
4423 | *symbol_map = obj_aout_external_sym_count (output_bfd); | |
4424 | ++obj_aout_external_sym_count (output_bfd); | |
4425 | ++outsym; | |
e135f41b NC |
4426 | } |
4427 | ||
116c20d2 | 4428 | /* Write out the output symbols we have just constructed. */ |
57402f1e | 4429 | if (outsym > flaginfo->output_syms) |
e135f41b NC |
4430 | { |
4431 | bfd_size_type size; | |
e135f41b | 4432 | |
57402f1e | 4433 | if (bfd_seek (output_bfd, flaginfo->symoff, SEEK_SET) != 0) |
b34976b6 | 4434 | return FALSE; |
57402f1e | 4435 | size = outsym - flaginfo->output_syms; |
116c20d2 | 4436 | size *= EXTERNAL_NLIST_SIZE; |
57402f1e | 4437 | if (bfd_bwrite ((void *) flaginfo->output_syms, size, output_bfd) != size) |
b34976b6 | 4438 | return FALSE; |
57402f1e | 4439 | flaginfo->symoff += size; |
e135f41b NC |
4440 | } |
4441 | ||
b34976b6 | 4442 | return TRUE; |
e135f41b | 4443 | } |
116c20d2 NC |
4444 | |
4445 | /* Write out a symbol that was not associated with an a.out input | |
4446 | object. */ | |
e135f41b | 4447 | |
edeb6e24 AM |
4448 | static bfd_vma |
4449 | bfd_getp32 (const void *p) | |
e135f41b | 4450 | { |
edeb6e24 AM |
4451 | const bfd_byte *addr = p; |
4452 | unsigned long v; | |
116c20d2 | 4453 | |
edeb6e24 AM |
4454 | v = (unsigned long) addr[1] << 24; |
4455 | v |= (unsigned long) addr[0] << 16; | |
4456 | v |= (unsigned long) addr[3] << 8; | |
4457 | v |= (unsigned long) addr[2]; | |
4458 | return v; | |
e135f41b NC |
4459 | } |
4460 | ||
4461 | #define COERCE32(x) (((bfd_signed_vma) (x) ^ 0x80000000) - 0x80000000) | |
4462 | ||
edeb6e24 AM |
4463 | static bfd_signed_vma |
4464 | bfd_getp_signed_32 (const void *p) | |
e135f41b | 4465 | { |
edeb6e24 AM |
4466 | const bfd_byte *addr = p; |
4467 | unsigned long v; | |
116c20d2 | 4468 | |
edeb6e24 AM |
4469 | v = (unsigned long) addr[1] << 24; |
4470 | v |= (unsigned long) addr[0] << 16; | |
4471 | v |= (unsigned long) addr[3] << 8; | |
4472 | v |= (unsigned long) addr[2]; | |
4473 | return COERCE32 (v); | |
e135f41b NC |
4474 | } |
4475 | ||
edeb6e24 AM |
4476 | static void |
4477 | bfd_putp32 (bfd_vma data, void *p) | |
e135f41b | 4478 | { |
edeb6e24 | 4479 | bfd_byte *addr = p; |
116c20d2 | 4480 | |
edeb6e24 AM |
4481 | addr[0] = (data >> 16) & 0xff; |
4482 | addr[1] = (data >> 24) & 0xff; | |
4483 | addr[2] = (data >> 0) & 0xff; | |
4484 | addr[3] = (data >> 8) & 0xff; | |
e135f41b | 4485 | } |
116c20d2 NC |
4486 | |
4487 | const bfd_target MY (vec) = | |
4488 | { | |
4489 | TARGETNAME, /* Name. */ | |
4490 | bfd_target_aout_flavour, | |
4491 | BFD_ENDIAN_LITTLE, /* Target byte order (little). */ | |
4492 | BFD_ENDIAN_LITTLE, /* Target headers byte order (little). */ | |
4493 | (HAS_RELOC | EXEC_P | /* Object flags. */ | |
4494 | HAS_LINENO | HAS_DEBUG | | |
4495 | HAS_SYMS | HAS_LOCALS | WP_TEXT), | |
4496 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA), | |
4497 | MY_symbol_leading_char, | |
4498 | AR_PAD_CHAR, /* AR_pad_char. */ | |
4499 | 15, /* AR_max_namelen. */ | |
0aabe54e | 4500 | 0, /* match priority. */ |
116c20d2 NC |
4501 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, |
4502 | bfd_getp32, bfd_getp_signed_32, bfd_putp32, | |
4503 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Data. */ | |
4504 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, | |
4505 | bfd_getp32, bfd_getp_signed_32, bfd_putp32, | |
4506 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Headers. */ | |
d00dd7dc AM |
4507 | { /* bfd_check_format. */ |
4508 | _bfd_dummy_target, | |
4509 | MY_object_p, | |
4510 | bfd_generic_archive_p, | |
4511 | MY_core_file_p | |
4512 | }, | |
4513 | { /* bfd_set_format. */ | |
4514 | _bfd_bool_bfd_false_error, | |
4515 | MY_mkobject, | |
4516 | _bfd_generic_mkarchive, | |
4517 | _bfd_bool_bfd_false_error | |
4518 | }, | |
4519 | { /* bfd_write_contents. */ | |
4520 | _bfd_bool_bfd_false_error, | |
4521 | MY_write_object_contents, | |
4522 | _bfd_write_archive_contents, | |
4523 | _bfd_bool_bfd_false_error | |
4524 | }, | |
4525 | ||
4526 | BFD_JUMP_TABLE_GENERIC (MY), | |
4527 | BFD_JUMP_TABLE_COPY (MY), | |
4528 | BFD_JUMP_TABLE_CORE (MY), | |
4529 | BFD_JUMP_TABLE_ARCHIVE (MY), | |
4530 | BFD_JUMP_TABLE_SYMBOLS (MY), | |
4531 | BFD_JUMP_TABLE_RELOCS (MY), | |
4532 | BFD_JUMP_TABLE_WRITE (MY), | |
4533 | BFD_JUMP_TABLE_LINK (MY), | |
4534 | BFD_JUMP_TABLE_DYNAMIC (MY), | |
116c20d2 NC |
4535 | |
4536 | /* Alternative_target. */ | |
4537 | NULL, | |
4538 | ||
4539 | (void *) MY_backend_data | |
4540 | }; |