Commit | Line | Data |
---|---|---|
7ed4093a SC |
1 | |
2 | /* BFD semi-generic back-end for a.out binaries */ | |
3 | ||
4 | /* Copyright (C) 1990, 1991 Free Software Foundation, Inc. | |
5 | ||
6 | This file is part of BFD, the Binary File Diddler. | |
7 | ||
8 | BFD is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 1, or (at your option) | |
11 | any later version. | |
12 | ||
13 | BFD is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with BFD; see the file COPYING. If not, write to | |
20 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
21 | ||
22 | ||
6f715d66 SC |
23 | /*doc* |
24 | @section a.out backends | |
25 | ||
26 | BFD supports a number of different flavours of a.out format, though | |
27 | the major differences are only the sizes of the structures on disk, | |
28 | and the shape of the relocation information. | |
29 | ||
30 | The support is split into a basic support file @code{aoutx.h} and | |
31 | other files which derive functions from the base. One derivation file | |
32 | is @code{aoutf1.h} (for a.out flavour 1), and adds to the basic a.out | |
33 | functions support for sun3, sun4, 386 and 29k a.out files, to create a | |
34 | target jump vector for a specific target. | |
35 | ||
36 | This information is further split out into more specific files for each | |
37 | machine, including @code{sunos.c} - for sun3 and sun4 and | |
38 | @code{demo64} for a demonstration of a 64 bit a.out format. | |
39 | ||
40 | The base file @code{aoutx.h} defines general mechanisms for reading | |
41 | and writing records to and from disk, and various other methods which | |
42 | bfd requires. It is included by @code{aout32.c} and @code{aout64.c} to | |
43 | form the names aout_32_swap_exec_header_in, | |
44 | aout_64_swap_exec_header_in, etc. | |
45 | ||
46 | As an example, this is what goes on to make the back end for a sun4, from aout32.c | |
47 | ||
48 | @example | |
49 | #define ARCH_SIZE 32 | |
50 | #include "aoutx.h" | |
51 | @end example | |
52 | ||
53 | Which exports names: | |
54 | @example | |
55 | ... | |
56 | aout_32_canonicalize_reloc | |
57 | aout_32_find_nearest_line | |
58 | aout_32_get_lineno | |
59 | aout_32_get_reloc_upper_bound | |
60 | ... | |
61 | @end example | |
62 | ||
63 | from sunos.c | |
64 | ||
65 | @example | |
66 | #define ARCH 32 | |
67 | #define TARGET_NAME "a.out-sunos-big" | |
68 | #define VECNAME sunos_big_vec | |
69 | #include "aoutf1.h" | |
70 | @end example | |
71 | requires all the names from aout32.c, and produces the jump vector | |
72 | ||
73 | @example | |
74 | sunos_big_vec | |
75 | @end example | |
76 | ||
77 | */ | |
78 | ||
7ed4093a SC |
79 | #include <sysdep.h> |
80 | #include <ansidecl.h> | |
81 | ||
82 | ||
83 | #include "bfd.h" | |
84 | struct external_exec; | |
6f715d66 | 85 | #include "libaout.h" |
7ed4093a SC |
86 | #include "libbfd.h" |
87 | #include "aout64.h" | |
88 | #include "stab.gnu.h" | |
89 | #include "ar.h" | |
90 | ||
91 | void (*bfd_error_trap)(); | |
92 | ||
6f715d66 SC |
93 | /*doc* |
94 | @subsection relocations | |
95 | The file @code{aoutx.h} caters for both the @emph{standard} and | |
96 | @emph{extended} forms of a.out relocation records. | |
7ed4093a | 97 | |
6f715d66 SC |
98 | The standard records are characterised by containing only an address, |
99 | a symbol index and a type field. The extended records (used on 29ks | |
100 | and sparcs) also have a full integer for an addend. | |
101 | */ | |
7ed4093a SC |
102 | #define CTOR_TABLE_RELOC_IDX 2 |
103 | static reloc_howto_type howto_table_ext[] = | |
104 | { | |
105 | HOWTO(RELOC_8, 0, 0, 8, false, 0, true, true,0,"8", false, 0,0x000000ff, false), | |
106 | HOWTO(RELOC_16, 0, 1, 16, false, 0, true, true,0,"16", false, 0,0x0000ffff, false), | |
107 | HOWTO(RELOC_32, 0, 2, 32, false, 0, true, true,0,"32", false, 0,0xffffffff, false), | |
108 | HOWTO(RELOC_DISP8, 0, 0, 8, true, 0, false, true,0,"DISP8", false, 0,0x000000ff, false), | |
109 | HOWTO(RELOC_DISP16, 0, 1, 16, true, 0, false, true,0,"DISP16", false, 0,0x0000ffff, false), | |
110 | HOWTO(RELOC_DISP32, 0, 2, 32, true, 0, false, true,0,"DISP32", false, 0,0xffffffff, false), | |
111 | HOWTO(RELOC_WDISP30,2, 2, 30, true, 0, false, true,0,"WDISP30", false, 0,0x3fffffff, false), | |
112 | HOWTO(RELOC_WDISP22,2, 2, 22, true, 0, false, true,0,"WDISP22", false, 0,0x003fffff, false), | |
113 | HOWTO(RELOC_HI22, 10, 2, 22, false, 0, false, true,0,"HI22", false, 0,0x003fffff, false), | |
114 | HOWTO(RELOC_22, 0, 2, 22, false, 0, false, true,0,"22", false, 0,0x003fffff, false), | |
115 | HOWTO(RELOC_13, 0, 2, 13, false, 0, false, true,0,"13", false, 0,0x00001fff, false), | |
116 | HOWTO(RELOC_LO10, 0, 2, 10, false, 0, false, true,0,"LO10", false, 0,0x000003ff, false), | |
117 | HOWTO(RELOC_SFA_BASE,0, 2, 32, false, 0, false, true,0,"SFA_BASE", false, 0,0xffffffff, false), | |
118 | HOWTO(RELOC_SFA_OFF13,0,2, 32, false, 0, false, true,0,"SFA_OFF13",false, 0,0xffffffff, false), | |
119 | HOWTO(RELOC_BASE10, 0, 2, 16, false, 0, false, true,0,"BASE10", false, 0,0x0000ffff, false), | |
120 | HOWTO(RELOC_BASE13, 0, 2, 13, false, 0, false, true,0,"BASE13", false, 0,0x00001fff, false), | |
121 | HOWTO(RELOC_BASE22, 0, 2, 0, false, 0, false, true,0,"BASE22", false, 0,0x00000000, false), | |
122 | HOWTO(RELOC_PC10, 0, 2, 10, false, 0, false, true,0,"PC10", false, 0,0x000003ff, false), | |
123 | HOWTO(RELOC_PC22, 0, 2, 22, false, 0, false, true,0,"PC22", false, 0,0x003fffff, false), | |
124 | HOWTO(RELOC_JMP_TBL,0, 2, 32, false, 0, false, true,0,"JMP_TBL", false, 0,0xffffffff, false), | |
125 | HOWTO(RELOC_SEGOFF16,0, 2, 0, false, 0, false, true,0,"SEGOFF16", false, 0,0x00000000, false), | |
126 | HOWTO(RELOC_GLOB_DAT,0, 2, 0, false, 0, false, true,0,"GLOB_DAT", false, 0,0x00000000, false), | |
127 | HOWTO(RELOC_JMP_SLOT,0, 2, 0, false, 0, false, true,0,"JMP_SLOT", false, 0,0x00000000, false), | |
128 | HOWTO(RELOC_RELATIVE,0, 2, 0, false, 0, false, true,0,"RELATIVE", false, 0,0x00000000, false), | |
129 | HOWTO(RELOC_JUMPTARG,2, 13, 16, true, 0, false, true,0,"JUMPTARG", false, 0,0x0000ffff, false), | |
130 | HOWTO(RELOC_CONST, 0, 13, 16, false, 0, false, true,0,"CONST", false, 0,0x0000ffff, false), | |
131 | HOWTO(RELOC_CONSTH, 16, 13, 16, false, 0, false, true,0,"CONSTH", false, 0,0x0000ffff, false), | |
132 | }; | |
133 | ||
134 | /* Convert standard reloc records to "arelent" format (incl byte swap). */ | |
135 | ||
136 | static reloc_howto_type howto_table_std[] = { | |
137 | /* type rs size bsz pcrel bitpos abs ovrf sf name part_inpl readmask setmask pcdone */ | |
138 | HOWTO( 0, 0, 0, 8, false, 0, true, true,0,"8", true, 0x000000ff,0x000000ff, false), | |
139 | HOWTO( 1, 0, 1, 16, false, 0, true, true,0,"16", true, 0x0000ffff,0x0000ffff, false), | |
140 | HOWTO( 2, 0, 2, 32, false, 0, true, true,0,"32", true, 0xffffffff,0xffffffff, false), | |
141 | HOWTO( 3, 0, 3, 64, false, 0, true, true,0,"64", true, 0xdeaddead,0xdeaddead, false), | |
142 | HOWTO( 4, 0, 0, 8, true, 0, false, true,0,"DISP8", true, 0x000000ff,0x000000ff, false), | |
143 | HOWTO( 5, 0, 1, 16, true, 0, false, true,0,"DISP16", true, 0x0000ffff,0x0000ffff, false), | |
144 | HOWTO( 6, 0, 2, 32, true, 0, false, true,0,"DISP32", true, 0xffffffff,0xffffffff, false), | |
145 | HOWTO( 7, 0, 3, 64, true, 0, false, true,0,"DISP64", true, 0xfeedface,0xfeedface, false), | |
146 | }; | |
147 | ||
148 | ||
149 | bfd_error_vector_type bfd_error_vector; | |
6f715d66 SC |
150 | |
151 | /*doc* | |
152 | @subsection Internal Entry Points | |
153 | @code{aoutx.h} exports several routines for accessing the contents of | |
154 | an a.out file, which are gathered and exported in turn by various | |
155 | format specific files (eg sunos.c). | |
156 | */ | |
157 | ||
158 | /*doc* | |
159 | *i aout_<size>_swap_exec_header_in | |
160 | Swaps the information in an executable header taken from a raw byte stream memory image, | |
161 | into the internal exec_header structure. | |
162 | *; PROTO(void, aout_<size>_swap_exec_header_in, | |
163 | (bfd *abfd, | |
164 | struct external_exec *raw_bytes, | |
165 | struct internal_exec *execp)); | |
166 | */ | |
167 | ||
7ed4093a SC |
168 | void |
169 | DEFUN(NAME(aout,swap_exec_header_in),(abfd, raw_bytes, execp), | |
170 | bfd *abfd AND | |
171 | struct external_exec *raw_bytes AND | |
172 | struct internal_exec *execp) | |
173 | { | |
174 | struct external_exec *bytes = (struct external_exec *)raw_bytes; | |
175 | ||
176 | /* Now fill in fields in the execp, from the bytes in the raw data. */ | |
177 | execp->a_info = bfd_h_get_32 (abfd, bytes->e_info); | |
178 | execp->a_text = GET_WORD (abfd, bytes->e_text); | |
179 | execp->a_data = GET_WORD (abfd, bytes->e_data); | |
180 | execp->a_bss = GET_WORD (abfd, bytes->e_bss); | |
181 | execp->a_syms = GET_WORD (abfd, bytes->e_syms); | |
182 | execp->a_entry = GET_WORD (abfd, bytes->e_entry); | |
183 | execp->a_trsize = GET_WORD (abfd, bytes->e_trsize); | |
184 | execp->a_drsize = GET_WORD (abfd, bytes->e_drsize); | |
185 | } | |
186 | ||
6f715d66 SC |
187 | /*doc* |
188 | *i aout_<size>_swap_exec_header_out | |
189 | Swaps the information in an internal exec header structure into the | |
190 | supplied buffer ready for writing to disk. | |
191 | *; PROTO(void, aout_<size>_swap_exec_header_out, | |
192 | (bfd *abfd, | |
193 | struct internal_exec *execp, | |
194 | struct external_exec *raw_bytes)); | |
195 | */ | |
7ed4093a SC |
196 | void |
197 | DEFUN(NAME(aout,swap_exec_header_out),(abfd, execp, raw_bytes), | |
198 | bfd *abfd AND | |
199 | struct internal_exec *execp AND | |
200 | struct external_exec *raw_bytes) | |
201 | { | |
202 | struct external_exec *bytes = (struct external_exec *)raw_bytes; | |
203 | ||
204 | /* Now fill in fields in the raw data, from the fields in the exec struct. */ | |
205 | bfd_h_put_32 (abfd, execp->a_info , bytes->e_info); | |
206 | PUT_WORD (abfd, execp->a_text , bytes->e_text); | |
207 | PUT_WORD (abfd, execp->a_data , bytes->e_data); | |
208 | PUT_WORD (abfd, execp->a_bss , bytes->e_bss); | |
209 | PUT_WORD (abfd, execp->a_syms , bytes->e_syms); | |
210 | PUT_WORD (abfd, execp->a_entry , bytes->e_entry); | |
211 | PUT_WORD (abfd, execp->a_trsize, bytes->e_trsize); | |
212 | PUT_WORD (abfd, execp->a_drsize, bytes->e_drsize); | |
213 | } | |
214 | ||
215 | struct container { | |
216 | struct aoutdata a; | |
217 | struct internal_exec e; | |
218 | }; | |
219 | ||
6f715d66 SC |
220 | |
221 | /*doc* | |
222 | *i aout_<size>_some_aout_object_p | |
223 | ||
224 | Some A.OUT variant thinks that the file whose format we're checking | |
225 | is an a.out file. Do some more checking, and set up for access if | |
226 | it really is. Call back to the calling environments "finish up" | |
227 | function just before returning, to handle any last-minute setup. | |
228 | ||
229 | *; PROTO(bfd_target *, aout_<size>_some_aout_object_p, | |
230 | (bfd *abfd, | |
231 | bfd_target *(*callback_to_real_object_p)())); | |
232 | */ | |
7ed4093a SC |
233 | |
234 | bfd_target * | |
235 | DEFUN(NAME(aout,some_aout_object_p),(abfd, callback_to_real_object_p), | |
236 | bfd *abfd AND | |
237 | bfd_target *(*callback_to_real_object_p) ()) | |
238 | { | |
239 | struct external_exec exec_bytes; | |
240 | struct internal_exec *execp; | |
241 | struct container *rawptr; | |
242 | ||
243 | if (bfd_seek (abfd, 0L, false) < 0) { | |
244 | bfd_error = system_call_error; | |
245 | return 0; | |
246 | } | |
247 | ||
248 | if (bfd_read ((PTR) &exec_bytes, 1, EXEC_BYTES_SIZE, abfd) | |
249 | != EXEC_BYTES_SIZE) { | |
250 | bfd_error = wrong_format; | |
251 | return 0; | |
252 | } | |
253 | ||
254 | /* Use an intermediate variable for clarity */ | |
255 | rawptr = (struct container *) bfd_zalloc (abfd, sizeof (struct container)); | |
256 | ||
257 | if (rawptr == NULL) { | |
258 | bfd_error = no_memory; | |
259 | return 0; | |
260 | } | |
261 | ||
262 | set_tdata (abfd, rawptr); | |
263 | exec_hdr (abfd) = execp = &(rawptr->e); | |
264 | NAME(aout,swap_exec_header_in)(abfd, &exec_bytes, execp); | |
265 | ||
266 | /* Set the file flags */ | |
267 | abfd->flags = NO_FLAGS; | |
268 | if (execp->a_drsize || execp->a_trsize) | |
269 | abfd->flags |= HAS_RELOC; | |
270 | if (execp->a_entry) | |
271 | abfd->flags |= EXEC_P; | |
272 | if (execp->a_syms) | |
273 | abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS; | |
274 | ||
275 | if (N_MAGIC (*execp) == ZMAGIC) abfd->flags |= D_PAGED; | |
276 | if (N_MAGIC (*execp) == NMAGIC) abfd->flags |= WP_TEXT; | |
277 | ||
278 | bfd_get_start_address (abfd) = execp->a_entry; | |
279 | ||
280 | obj_aout_symbols (abfd) = (aout_symbol_type *)NULL; | |
281 | bfd_get_symcount (abfd) = execp->a_syms / sizeof (struct external_nlist); | |
282 | ||
283 | /* Set the default architecture and machine type. These can be | |
284 | overridden in the callback routine. */ | |
285 | abfd->obj_arch = bfd_arch_unknown; | |
286 | abfd->obj_machine = 0; | |
287 | ||
288 | /* The default relocation entry size is that of traditional V7 Unix. */ | |
289 | obj_reloc_entry_size (abfd) = RELOC_STD_SIZE; | |
290 | ||
291 | /* create the sections. This is raunchy, but bfd_close wants to reclaim | |
292 | them */ | |
293 | obj_textsec (abfd) = (asection *)NULL; | |
294 | obj_datasec (abfd) = (asection *)NULL; | |
295 | obj_bsssec (abfd) = (asection *)NULL; | |
296 | (void)bfd_make_section(abfd, ".text"); | |
297 | (void)bfd_make_section(abfd, ".data"); | |
298 | (void)bfd_make_section(abfd, ".bss"); | |
299 | ||
300 | abfd->sections = obj_textsec (abfd); | |
301 | obj_textsec (abfd)->next = obj_datasec (abfd); | |
302 | obj_datasec (abfd)->next = obj_bsssec (abfd); | |
303 | ||
304 | obj_datasec (abfd)->size = execp->a_data; | |
305 | obj_bsssec (abfd)->size = execp->a_bss; | |
306 | obj_textsec (abfd)->size = execp->a_text; | |
307 | ||
308 | if (abfd->flags & D_PAGED) { | |
309 | obj_textsec (abfd)->size -= EXEC_BYTES_SIZE; | |
310 | } | |
311 | ||
312 | ||
313 | obj_textsec (abfd)->flags = (execp->a_trsize != 0 ? | |
314 | (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_HAS_CONTENTS) : | |
315 | (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS)); | |
316 | obj_datasec (abfd)->flags = (execp->a_drsize != 0 ? | |
317 | (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_HAS_CONTENTS) : | |
318 | (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS)); | |
319 | obj_bsssec (abfd)->flags = SEC_ALLOC; | |
320 | ||
321 | #ifdef THIS_IS_ONLY_DOCUMENTATION | |
322 | /* Call back to the format-dependent code to fill in the rest of the | |
323 | fields and do any further cleanup. Things that should be filled | |
324 | in by the callback: */ | |
325 | ||
326 | struct exec *execp = exec_hdr (abfd); | |
327 | ||
328 | /* The virtual memory addresses of the sections */ | |
329 | obj_datasec (abfd)->vma = N_DATADDR(*execp); | |
330 | obj_bsssec (abfd)->vma = N_BSSADDR(*execp); | |
331 | obj_textsec (abfd)->vma = N_TXTADDR(*execp); | |
332 | ||
333 | /* The file offsets of the sections */ | |
334 | obj_textsec (abfd)->filepos = N_TXTOFF(*execp); | |
335 | obj_datasec (abfd)->filepos = N_DATOFF(*execp); | |
336 | ||
337 | /* The file offsets of the relocation info */ | |
338 | obj_textsec (abfd)->rel_filepos = N_TRELOFF(*execp); | |
339 | obj_datasec (abfd)->rel_filepos = N_DRELOFF(*execp); | |
340 | ||
341 | /* The file offsets of the string table and symbol table. */ | |
342 | obj_str_filepos (abfd) = N_STROFF (*execp); | |
343 | obj_sym_filepos (abfd) = N_SYMOFF (*execp); | |
344 | ||
345 | /* This common code can't fill in those things because they depend | |
346 | on either the start address of the text segment, the rounding | |
347 | up of virtual addersses between segments, or the starting file | |
348 | position of the text segment -- all of which varies among different | |
349 | versions of a.out. */ | |
350 | ||
351 | /* Determine the architecture and machine type of the object file. */ | |
352 | switch (N_MACHTYPE (*exec_hdr (abfd))) { | |
353 | default: | |
354 | abfd->obj_arch = bfd_arch_obscure; | |
355 | break; | |
356 | } | |
357 | ||
358 | /* Determine the size of a relocation entry */ | |
359 | switch (abfd->obj_arch) { | |
360 | case bfd_arch_sparc: | |
361 | case bfd_arch_a29k: | |
362 | obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE; | |
363 | default: | |
364 | obj_reloc_entry_size (abfd) = RELOC_STD_SIZE; | |
365 | } | |
366 | ||
367 | return abfd->xvec; | |
368 | ||
369 | /* The architecture is encoded in various ways in various a.out variants, | |
370 | or is not encoded at all in some of them. The relocation size depends | |
371 | on the architecture and the a.out variant. Finally, the return value | |
372 | is the bfd_target vector in use. If an error occurs, return zero and | |
373 | set bfd_error to the appropriate error code. | |
374 | ||
375 | Formats such as b.out, which have additional fields in the a.out | |
376 | header, should cope with them in this callback as well. */ | |
377 | #endif /* DOCUMENTATION */ | |
378 | ||
379 | ||
380 | return (*callback_to_real_object_p)(abfd); | |
381 | } | |
382 | ||
6f715d66 SC |
383 | /*doc* |
384 | *i aout_<size>_mkobject | |
385 | ||
386 | This routine initializes a bfd for use with a.out files. | |
387 | ||
388 | *; PROTO(boolean, aout_<size>_mkobject, (bfd *)); | |
389 | */ | |
7ed4093a SC |
390 | |
391 | boolean | |
392 | DEFUN(NAME(aout,mkobject),(abfd), | |
393 | bfd *abfd) | |
394 | { | |
395 | struct container *rawptr; | |
396 | ||
397 | bfd_error = system_call_error; | |
398 | ||
399 | /* Use an intermediate variable for clarity */ | |
400 | rawptr = (struct container *)bfd_zalloc (abfd, sizeof (struct container)); | |
401 | ||
402 | if (rawptr == NULL) { | |
403 | bfd_error = no_memory; | |
404 | return false; | |
405 | } | |
406 | ||
407 | set_tdata (abfd, rawptr); | |
408 | exec_hdr (abfd) = &(rawptr->e); | |
409 | ||
410 | /* For simplicity's sake we just make all the sections right here. */ | |
411 | ||
412 | obj_textsec (abfd) = (asection *)NULL; | |
413 | obj_datasec (abfd) = (asection *)NULL; | |
414 | obj_bsssec (abfd) = (asection *)NULL; | |
415 | bfd_make_section (abfd, ".text"); | |
416 | bfd_make_section (abfd, ".data"); | |
417 | bfd_make_section (abfd, ".bss"); | |
418 | ||
419 | return true; | |
420 | } | |
421 | ||
6f715d66 SC |
422 | |
423 | /*doc* | |
424 | *i aout_<size>_machine_type | |
425 | ||
426 | Keep track of machine architecture and machine type for a.out's. | |
7ed4093a SC |
427 | Return the machine_type for a particular arch&machine, or M_UNKNOWN |
428 | if that exact arch&machine can't be represented in a.out format. | |
429 | ||
430 | If the architecture is understood, machine type 0 (default) should | |
6f715d66 SC |
431 | always be understood. |
432 | ||
433 | *; PROTO(enum machine_type, aout_<size>_machine_type, | |
434 | (enum bfd_architecture arch, | |
435 | unsigned long machine)); | |
436 | */ | |
7ed4093a SC |
437 | |
438 | enum machine_type | |
439 | DEFUN(NAME(aout,machine_type),(arch, machine), | |
440 | enum bfd_architecture arch AND | |
441 | unsigned long machine) | |
442 | { | |
443 | enum machine_type arch_flags; | |
444 | ||
445 | arch_flags = M_UNKNOWN; | |
446 | ||
447 | switch (arch) { | |
448 | case bfd_arch_sparc: | |
449 | if (machine == 0) arch_flags = M_SPARC; | |
450 | break; | |
451 | ||
452 | case bfd_arch_m68k: | |
453 | switch (machine) { | |
454 | case 0: arch_flags = M_68010; break; | |
455 | case 68000: arch_flags = M_UNKNOWN; break; | |
456 | case 68010: arch_flags = M_68010; break; | |
457 | case 68020: arch_flags = M_68020; break; | |
458 | default: arch_flags = M_UNKNOWN; break; | |
459 | } | |
460 | break; | |
461 | ||
462 | case bfd_arch_i386: | |
463 | if (machine == 0) arch_flags = M_386; | |
464 | break; | |
465 | ||
466 | case bfd_arch_a29k: | |
467 | if (machine == 0) arch_flags = M_29K; | |
468 | break; | |
469 | ||
470 | default: | |
471 | arch_flags = M_UNKNOWN; | |
472 | break; | |
473 | } | |
474 | return arch_flags; | |
475 | } | |
476 | ||
6f715d66 SC |
477 | /*doc* |
478 | *i aout_<size>_set_arch_mach | |
479 | ||
480 | Sets the architecture and the machine of the bfd to those values | |
481 | supplied. Verifies that the format can support the architecture | |
482 | required. | |
483 | ||
484 | *; PROTO(boolean, aout_<size>_set_arch_mach, | |
485 | (bfd *, | |
486 | enum bfd_architecture, | |
487 | unsigned long machine)); | |
488 | */ | |
489 | ||
7ed4093a SC |
490 | boolean |
491 | DEFUN(NAME(aout,set_arch_mach),(abfd, arch, machine), | |
492 | bfd *abfd AND | |
493 | enum bfd_architecture arch AND | |
494 | unsigned long machine) | |
495 | { | |
496 | abfd->obj_arch = arch; | |
497 | abfd->obj_machine = machine; | |
498 | if (arch != bfd_arch_unknown && | |
499 | NAME(aout,machine_type) (arch, machine) == M_UNKNOWN) | |
500 | return false; /* We can't represent this type */ | |
501 | return true; /* We're easy ... */ | |
502 | } | |
7ed4093a | 503 | |
6f715d66 SC |
504 | /*doc* |
505 | *i aout_<size>new_section_hook | |
506 | ||
507 | Called by the bfd in response to a @code{bfd_make_section} request. | |
508 | *; PROTO(boolean, aout_<size>_new_section_hook, | |
509 | (bfd *abfd, | |
510 | asection *newsect)); | |
511 | */ | |
7ed4093a SC |
512 | boolean |
513 | DEFUN(NAME(aout,new_section_hook),(abfd, newsect), | |
514 | bfd *abfd AND | |
515 | asection *newsect) | |
516 | { | |
517 | /* align to double at least */ | |
518 | newsect->alignment_power = 3; | |
519 | ||
520 | if (bfd_get_format (abfd) == bfd_object) { | |
521 | if (obj_textsec(abfd) == NULL && !strcmp(newsect->name, ".text")) { | |
522 | obj_textsec(abfd)= newsect; | |
523 | return true; | |
524 | } | |
525 | ||
526 | if (obj_datasec(abfd) == NULL && !strcmp(newsect->name, ".data")) { | |
527 | obj_datasec(abfd) = newsect; | |
528 | return true; | |
529 | } | |
530 | ||
531 | if (obj_bsssec(abfd) == NULL && !strcmp(newsect->name, ".bss")) { | |
532 | obj_bsssec(abfd) = newsect; | |
533 | return true; | |
534 | } | |
535 | } | |
536 | ||
537 | /* We allow more than three sections internally */ | |
538 | return true; | |
539 | } | |
540 | ||
541 | boolean | |
542 | DEFUN(NAME(aout,set_section_contents),(abfd, section, location, offset, count), | |
543 | bfd *abfd AND | |
544 | sec_ptr section AND | |
545 | PTR location AND | |
546 | file_ptr offset AND | |
547 | bfd_size_type count) | |
548 | { | |
549 | if (abfd->output_has_begun == false) | |
550 | { /* set by bfd.c handler */ | |
551 | if ((obj_textsec (abfd) == NULL) || (obj_datasec (abfd) == NULL)) | |
552 | { | |
553 | bfd_error = invalid_operation; | |
554 | return false; | |
555 | } | |
556 | /* if (abfd->flags & D_PAGED) { | |
557 | obj_textsec(abfd)->filepos = 0; | |
558 | } | |
559 | else*/ { | |
560 | obj_textsec(abfd)->filepos = EXEC_BYTES_SIZE; | |
561 | } | |
562 | obj_textsec(abfd)->size = align_power(obj_textsec(abfd)->size, | |
563 | obj_textsec(abfd)->alignment_power); | |
564 | obj_datasec(abfd)->filepos = obj_textsec (abfd)->size + EXEC_BYTES_SIZE; | |
565 | obj_datasec(abfd)->size = align_power(obj_datasec(abfd)->size, | |
566 | obj_datasec(abfd)->alignment_power); | |
567 | ||
568 | ||
569 | } | |
570 | /* regardless, once we know what we're doing, we might as well get going */ | |
571 | if (section != obj_bsssec(abfd)) | |
572 | { | |
573 | bfd_seek (abfd, section->filepos + offset, SEEK_SET); | |
574 | ||
575 | if (count) { | |
576 | return (bfd_write ((PTR)location, 1, count, abfd) == count) ? | |
577 | true : false; | |
578 | } | |
579 | return false; | |
580 | } | |
581 | return true; | |
582 | } | |
583 | \f | |
584 | /* Classify stabs symbols */ | |
585 | ||
586 | #define sym_in_text_section(sym) \ | |
587 | (((sym)->type & (N_ABS | N_TEXT | N_DATA | N_BSS))== N_TEXT) | |
588 | ||
589 | #define sym_in_data_section(sym) \ | |
590 | (((sym)->type & (N_ABS | N_TEXT | N_DATA | N_BSS))== N_DATA) | |
591 | ||
592 | #define sym_in_bss_section(sym) \ | |
593 | (((sym)->type & (N_ABS | N_TEXT | N_DATA | N_BSS))== N_BSS) | |
594 | ||
595 | /* Symbol is undefined if type is N_UNDF|N_EXT and if it has | |
596 | zero in the "value" field. Nonzeroes there are fortrancommon | |
597 | symbols. */ | |
598 | #define sym_is_undefined(sym) \ | |
599 | ((sym)->type == (N_UNDF | N_EXT) && (sym)->symbol.value == 0) | |
600 | ||
601 | /* Symbol is a global definition if N_EXT is on and if it has | |
602 | a nonzero type field. */ | |
603 | #define sym_is_global_defn(sym) \ | |
604 | (((sym)->type & N_EXT) && (sym)->type & N_TYPE) | |
605 | ||
606 | /* Symbol is debugger info if any bits outside N_TYPE or N_EXT | |
607 | are on. */ | |
608 | #define sym_is_debugger_info(sym) \ | |
609 | ((sym)->type & ~(N_EXT | N_TYPE)) | |
610 | ||
611 | #define sym_is_fortrancommon(sym) \ | |
612 | (((sym)->type == (N_EXT)) && (sym)->symbol.value != 0) | |
613 | ||
614 | /* Symbol is absolute if it has N_ABS set */ | |
615 | #define sym_is_absolute(sym) \ | |
616 | (((sym)->type & N_TYPE)== N_ABS) | |
617 | ||
618 | ||
619 | #define sym_is_indirect(sym) \ | |
620 | (((sym)->type & N_ABS)== N_ABS) | |
621 | ||
622 | /* Only in their own functions for ease of debugging; when sym flags have | |
623 | stabilised these should be inlined into their (single) caller */ | |
624 | ||
625 | static void | |
626 | DEFUN(translate_from_native_sym_flags,(sym_pointer, cache_ptr, abfd), | |
627 | struct external_nlist *sym_pointer AND | |
628 | aout_symbol_type *cache_ptr AND | |
629 | bfd *abfd) | |
630 | { | |
631 | switch (cache_ptr->type & N_TYPE) { | |
632 | case N_SETA: | |
633 | case N_SETT: | |
634 | case N_SETD: | |
635 | case N_SETB: | |
636 | { | |
637 | asection *section = bfd_make_section(abfd, | |
638 | cache_ptr->symbol.name); | |
639 | arelent_chain *reloc = (arelent_chain *)bfd_alloc(abfd, sizeof(arelent_chain)); | |
640 | ||
641 | switch ( (cache_ptr->type & N_TYPE) ) { | |
642 | case N_SETA: | |
643 | reloc->relent.section = (asection *)NULL; | |
644 | cache_ptr->symbol.section = (asection *)NULL; | |
645 | break; | |
646 | case N_SETT: | |
647 | reloc->relent.section = (asection *)obj_textsec(abfd); | |
648 | cache_ptr->symbol.value -= reloc->relent.section->vma; | |
649 | break; | |
650 | case N_SETD: | |
651 | reloc->relent.section = (asection *)obj_datasec(abfd); | |
652 | cache_ptr->symbol.value -= reloc->relent.section->vma; | |
653 | break; | |
654 | case N_SETB: | |
655 | reloc->relent.section = (asection *)obj_bsssec(abfd); | |
656 | cache_ptr->symbol.value -= reloc->relent.section->vma; | |
657 | break; | |
658 | } | |
659 | cache_ptr->symbol.section = reloc->relent.section; | |
660 | reloc->relent.addend = cache_ptr->symbol.value ; | |
661 | ||
662 | /* We modify the symbol to belong to a section depending upon the | |
663 | name of the symbol - probably __CTOR__ or __DTOR__ but we don't | |
664 | really care, and add to the size of the section to contain a | |
665 | pointer to the symbol. Build a reloc entry to relocate to this | |
666 | symbol attached to this section. */ | |
667 | ||
668 | section->flags = SEC_CONSTRUCTOR; | |
669 | section->reloc_count++; | |
670 | section->alignment_power = 2; | |
671 | reloc->relent.sym_ptr_ptr = (asymbol **)NULL; | |
672 | reloc->next = section->constructor_chain; | |
673 | section->constructor_chain = reloc; | |
674 | reloc->relent.address = section->size; | |
675 | section->size += sizeof(int *); | |
676 | ||
677 | reloc->relent.howto = howto_table_ext +CTOR_TABLE_RELOC_IDX; | |
678 | cache_ptr->symbol.flags |= BSF_DEBUGGING ; | |
679 | } | |
680 | break; | |
681 | default: | |
682 | ||
683 | if (sym_is_debugger_info (cache_ptr)) { | |
684 | cache_ptr->symbol.flags = BSF_DEBUGGING ; | |
685 | /* Work out the section correct for this symbol */ | |
686 | switch (cache_ptr->type & N_TYPE) | |
687 | { | |
688 | case N_TEXT: | |
689 | case N_FN: | |
690 | cache_ptr->symbol.section = obj_textsec (abfd); | |
691 | cache_ptr->symbol.value -= obj_textsec(abfd)->vma; | |
692 | break; | |
693 | case N_DATA: | |
694 | cache_ptr->symbol.value -= obj_datasec(abfd)->vma; | |
695 | cache_ptr->symbol.section = obj_datasec (abfd); | |
696 | break; | |
697 | case N_BSS : | |
698 | cache_ptr->symbol.section = obj_bsssec (abfd); | |
699 | cache_ptr->symbol.value -= obj_bsssec(abfd)->vma; | |
700 | break; | |
701 | case N_ABS: | |
702 | default: | |
703 | cache_ptr->symbol.section = 0; | |
704 | break; | |
705 | } | |
706 | } | |
707 | else { | |
708 | if (sym_is_fortrancommon (cache_ptr)) | |
709 | { | |
710 | cache_ptr->symbol.flags = BSF_FORT_COMM; | |
711 | cache_ptr->symbol.section = (asection *)NULL; | |
712 | } | |
713 | else { | |
714 | if (sym_is_undefined (cache_ptr)) { | |
715 | cache_ptr->symbol.flags = BSF_UNDEFINED; | |
716 | } | |
717 | else if (sym_is_global_defn (cache_ptr)) { | |
718 | cache_ptr->symbol.flags = BSF_GLOBAL | BSF_EXPORT; | |
719 | } | |
720 | ||
721 | else if (sym_is_absolute (cache_ptr)) { | |
722 | cache_ptr->symbol.flags = BSF_ABSOLUTE; | |
723 | } | |
724 | else { | |
725 | cache_ptr->symbol.flags = BSF_LOCAL; | |
726 | } | |
727 | ||
728 | /* In a.out, the value of a symbol is always relative to the | |
729 | * start of the file, if this is a data symbol we'll subtract | |
730 | * the size of the text section to get the section relative | |
731 | * value. If this is a bss symbol (which would be strange) | |
732 | * we'll subtract the size of the previous two sections | |
733 | * to find the section relative address. | |
734 | */ | |
735 | ||
736 | if (sym_in_text_section (cache_ptr)) { | |
737 | cache_ptr->symbol.value -= obj_textsec(abfd)->vma; | |
738 | cache_ptr->symbol.section = obj_textsec (abfd); | |
739 | } | |
740 | else if (sym_in_data_section (cache_ptr)){ | |
741 | cache_ptr->symbol.value -= obj_datasec(abfd)->vma; | |
742 | cache_ptr->symbol.section = obj_datasec (abfd); | |
743 | } | |
744 | else if (sym_in_bss_section(cache_ptr)) { | |
745 | cache_ptr->symbol.section = obj_bsssec (abfd); | |
746 | cache_ptr->symbol.value -= obj_bsssec(abfd)->vma; | |
747 | } | |
748 | else { | |
749 | cache_ptr->symbol.section = (asection *)NULL; | |
750 | cache_ptr->symbol.flags |= BSF_ABSOLUTE; | |
751 | } | |
752 | } | |
753 | } | |
754 | } | |
755 | } | |
756 | ||
757 | static void | |
758 | DEFUN(translate_to_native_sym_flags,(sym_pointer, cache_ptr, abfd), | |
759 | struct external_nlist *sym_pointer AND | |
760 | asymbol *cache_ptr AND | |
761 | bfd *abfd) | |
762 | { | |
763 | bfd_vma value = cache_ptr->value; | |
764 | ||
765 | if (bfd_get_section(cache_ptr)) { | |
766 | if (bfd_get_output_section(cache_ptr) == obj_bsssec (abfd)) { | |
767 | sym_pointer->e_type[0] |= N_BSS; | |
768 | } | |
769 | else if (bfd_get_output_section(cache_ptr) == obj_datasec (abfd)) { | |
770 | sym_pointer->e_type[0] |= N_DATA; | |
771 | } | |
772 | else if (bfd_get_output_section(cache_ptr) == obj_textsec (abfd)) { | |
773 | sym_pointer->e_type[0] |= N_TEXT; | |
774 | } | |
775 | else { | |
776 | bfd_error_vector.nonrepresentable_section(abfd, | |
777 | bfd_get_output_section(cache_ptr)->name); | |
778 | } | |
779 | /* Turn the symbol from section relative to absolute again */ | |
780 | ||
781 | value += | |
782 | cache_ptr->section->output_section->vma | |
783 | + cache_ptr->section->output_offset ; | |
784 | } | |
785 | else { | |
786 | sym_pointer->e_type[0] |= N_ABS; | |
787 | } | |
788 | ||
789 | if (cache_ptr->flags & (BSF_FORT_COMM | BSF_UNDEFINED)) { | |
790 | sym_pointer->e_type[0] = (N_UNDF | N_EXT); | |
791 | } | |
792 | else { | |
793 | if (cache_ptr->flags & BSF_ABSOLUTE) { | |
794 | sym_pointer->e_type[0] |= N_ABS; | |
795 | } | |
796 | ||
797 | if (cache_ptr->flags & (BSF_GLOBAL | BSF_EXPORT)) { | |
798 | sym_pointer->e_type[0] |= N_EXT; | |
799 | } | |
800 | if (cache_ptr->flags & BSF_DEBUGGING) { | |
801 | sym_pointer->e_type [0]= ((aout_symbol_type *)cache_ptr)->type; | |
802 | } | |
803 | } | |
804 | PUT_WORD(abfd, value, sym_pointer->e_value); | |
805 | } | |
806 | \f | |
807 | /* Native-level interface to symbols. */ | |
808 | ||
809 | /* We read the symbols into a buffer, which is discarded when this | |
810 | function exits. We read the strings into a buffer large enough to | |
811 | hold them all plus all the cached symbol entries. */ | |
812 | ||
813 | asymbol * | |
814 | DEFUN(NAME(aout,make_empty_symbol),(abfd), | |
815 | bfd *abfd) | |
816 | { | |
817 | aout_symbol_type *new = | |
818 | (aout_symbol_type *)bfd_zalloc (abfd, sizeof (aout_symbol_type)); | |
819 | new->symbol.the_bfd = abfd; | |
820 | ||
821 | return &new->symbol; | |
822 | } | |
823 | ||
824 | boolean | |
825 | DEFUN(NAME(aout,slurp_symbol_table),(abfd), | |
826 | bfd *abfd) | |
827 | { | |
828 | bfd_size_type symbol_size; | |
829 | bfd_size_type string_size; | |
830 | unsigned char string_chars[BYTES_IN_WORD]; | |
831 | struct external_nlist *syms; | |
832 | char *strings; | |
833 | aout_symbol_type *cached; | |
834 | ||
835 | /* If there's no work to be done, don't do any */ | |
836 | if (obj_aout_symbols (abfd) != (aout_symbol_type *)NULL) return true; | |
837 | symbol_size = exec_hdr(abfd)->a_syms; | |
838 | if (symbol_size == 0) { | |
839 | bfd_error = no_symbols; | |
840 | return false; | |
841 | } | |
842 | ||
843 | bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET); | |
844 | if (bfd_read ((PTR)string_chars, BYTES_IN_WORD, 1, abfd) != BYTES_IN_WORD) | |
845 | return false; | |
846 | string_size = GET_WORD (abfd, string_chars); | |
847 | ||
848 | strings =(char *) bfd_alloc(abfd, string_size + 1); | |
849 | cached = (aout_symbol_type *) | |
850 | bfd_zalloc(abfd, (bfd_size_type)(bfd_get_symcount (abfd) * sizeof(aout_symbol_type))); | |
851 | /* Alloc this last, so we can free it if obstack is in use. */ | |
852 | syms = (struct external_nlist *) bfd_alloc(abfd, symbol_size); | |
853 | ||
854 | bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET); | |
855 | if (bfd_read ((PTR)syms, 1, symbol_size, abfd) != symbol_size) { | |
856 | bailout: | |
857 | if (syms) bfd_release (abfd, syms); | |
858 | if (cached) bfd_release (abfd, cached); | |
859 | if (strings)bfd_release (abfd, strings); | |
860 | return false; | |
861 | } | |
862 | ||
863 | bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET); | |
864 | if (bfd_read ((PTR)strings, 1, string_size, abfd) != string_size) { | |
865 | goto bailout; | |
866 | } | |
867 | ||
868 | /* OK, now walk the new symtable, cacheing symbol properties */ | |
869 | { | |
870 | register struct external_nlist *sym_pointer; | |
871 | register struct external_nlist *sym_end = syms + bfd_get_symcount (abfd); | |
872 | register aout_symbol_type *cache_ptr = cached; | |
873 | ||
874 | /* Run through table and copy values */ | |
875 | for (sym_pointer = syms, cache_ptr = cached; | |
876 | sym_pointer < sym_end; sym_pointer++, cache_ptr++) | |
877 | { | |
878 | bfd_vma x = GET_WORD(abfd, sym_pointer->e_strx); | |
879 | cache_ptr->symbol.the_bfd = abfd; | |
880 | if (x) | |
881 | cache_ptr->symbol.name = x + strings; | |
882 | else | |
883 | cache_ptr->symbol.name = (char *)NULL; | |
884 | ||
885 | cache_ptr->symbol.value = GET_SWORD(abfd, sym_pointer->e_value); | |
886 | cache_ptr->desc = bfd_get_16(abfd, sym_pointer->e_desc); | |
887 | cache_ptr->other =bfd_get_8(abfd, sym_pointer->e_other); | |
888 | cache_ptr->type = bfd_get_8(abfd, sym_pointer->e_type); | |
889 | cache_ptr->symbol.udata = 0; | |
890 | translate_from_native_sym_flags (sym_pointer, cache_ptr, abfd); | |
891 | } | |
892 | } | |
893 | ||
894 | obj_aout_symbols (abfd) = cached; | |
895 | bfd_release (abfd, (PTR)syms); | |
896 | ||
897 | return true; | |
898 | } | |
899 | ||
900 | ||
901 | void | |
902 | DEFUN(NAME(aout,write_syms),(abfd), | |
903 | bfd *abfd) | |
904 | { | |
905 | unsigned int count ; | |
906 | asymbol **generic = bfd_get_outsymbols (abfd); | |
907 | ||
908 | bfd_size_type stindex = BYTES_IN_WORD; /* initial string length */ | |
909 | ||
910 | for (count = 0; count < bfd_get_symcount (abfd); count++) { | |
911 | asymbol *g = generic[count]; | |
912 | struct external_nlist nsp; | |
913 | ||
914 | ||
915 | if (g->name) { | |
916 | unsigned int length = strlen(g->name) +1; | |
917 | PUT_WORD (abfd, stindex, (unsigned char *)nsp.e_strx); | |
918 | stindex += length; | |
919 | } | |
920 | else { | |
921 | PUT_WORD (abfd, 0, (unsigned char *)nsp.e_strx); | |
922 | } | |
923 | ||
924 | if (g->the_bfd->xvec->flavour == abfd->xvec->flavour) | |
925 | { | |
926 | bfd_h_put_16(abfd, aout_symbol(g)->desc, nsp.e_desc); | |
927 | bfd_h_put_8(abfd, aout_symbol(g)->other, nsp.e_other); | |
928 | bfd_h_put_8(abfd, aout_symbol(g)->type, nsp.e_type); | |
929 | } | |
930 | else | |
931 | { | |
932 | bfd_h_put_16(abfd,0, nsp.e_desc); | |
933 | bfd_h_put_8(abfd, 0, nsp.e_other); | |
934 | bfd_h_put_8(abfd, 0, nsp.e_type); | |
935 | } | |
936 | ||
937 | ||
938 | ||
939 | translate_to_native_sym_flags (&nsp, (PTR)g, abfd); | |
940 | ||
941 | bfd_write((PTR)&nsp,1,EXTERNAL_LIST_SIZE, abfd); | |
942 | } | |
943 | ||
944 | ||
945 | /* Now output the strings. Be sure to put string length into correct | |
946 | * byte ordering before writing it. | |
947 | */ | |
948 | { | |
949 | char buffer[BYTES_IN_WORD]; | |
950 | PUT_WORD (abfd, stindex, (unsigned char *)buffer); | |
951 | ||
952 | bfd_write((PTR)buffer, 1, BYTES_IN_WORD, abfd); | |
953 | } | |
954 | generic = bfd_get_outsymbols(abfd); | |
955 | for (count = 0; count < bfd_get_symcount(abfd); count++) | |
956 | { | |
957 | asymbol *g = *(generic++); | |
958 | ||
959 | if (g->name) | |
960 | { | |
961 | size_t length = strlen(g->name)+1; | |
962 | bfd_write((PTR)g->name, 1, length, abfd); | |
963 | } | |
964 | if ((g->flags & BSF_FAKE)==0) { | |
965 | g->name = itos(count); /* smash the generic symbol */ | |
966 | } | |
967 | } | |
968 | } | |
969 | ||
970 | ||
971 | ||
972 | unsigned int | |
973 | DEFUN(NAME(aout,get_symtab),(abfd, location), | |
974 | bfd *abfd AND | |
975 | asymbol **location) | |
976 | { | |
977 | unsigned int counter = 0; | |
978 | aout_symbol_type *symbase; | |
979 | ||
980 | if (!NAME(aout,slurp_symbol_table)(abfd)) return 0; | |
981 | ||
982 | for (symbase = obj_aout_symbols(abfd); counter++ < bfd_get_symcount (abfd);) | |
983 | *(location++) = (asymbol *)( symbase++); | |
984 | *location++ =0; | |
985 | return bfd_get_symcount(abfd); | |
986 | } | |
987 | ||
988 | \f | |
989 | /* Standard reloc stuff */ | |
990 | /* Output standard relocation information to a file in target byte order. */ | |
991 | ||
992 | void | |
993 | DEFUN(NAME(aout,swap_std_reloc_out),(abfd, g, natptr), | |
994 | bfd *abfd AND | |
995 | arelent *g AND | |
996 | struct reloc_std_external *natptr) | |
997 | { | |
998 | int r_index; | |
999 | int r_extern; | |
1000 | unsigned int r_length; | |
1001 | int r_pcrel; | |
1002 | int r_baserel, r_jmptable, r_relative; | |
1003 | unsigned int r_addend; | |
1004 | ||
1005 | PUT_WORD(abfd, g->address, natptr->r_address); | |
1006 | ||
1007 | r_length = g->howto->size ; /* Size as a power of two */ | |
1008 | r_pcrel = (int) g->howto->pc_relative; /* Relative to PC? */ | |
1009 | /* r_baserel, r_jmptable, r_relative??? FIXME-soon */ | |
1010 | r_baserel = 0; | |
1011 | r_jmptable = 0; | |
1012 | r_relative = 0; | |
1013 | ||
1014 | r_addend = g->addend; /* Start here, see how it goes */ | |
1015 | ||
1016 | /* name was clobbered by aout_write_syms to be symbol index */ | |
1017 | ||
1018 | if (g->sym_ptr_ptr != NULL) | |
1019 | { | |
1020 | if ((*(g->sym_ptr_ptr))->section) { | |
1021 | /* put the section offset into the addend for output */ | |
1022 | r_addend += (*(g->sym_ptr_ptr))->section->vma; | |
1023 | } | |
1024 | ||
1025 | r_index = stoi((*(g->sym_ptr_ptr))->name); | |
1026 | r_extern = 1; | |
1027 | } | |
1028 | else { | |
1029 | r_extern = 0; | |
1030 | if (g->section == NULL) { | |
1031 | /* It is possible to have a reloc with nothing, we generate an | |
1032 | abs + 0 */ | |
1033 | r_addend = 0; | |
1034 | r_index = N_ABS | N_EXT; | |
1035 | } | |
1036 | else if(g->section->output_section == obj_textsec(abfd)) { | |
1037 | r_index = N_TEXT | N_EXT; | |
1038 | r_addend += g->section->output_section->vma; | |
1039 | } | |
1040 | else if (g->section->output_section == obj_datasec(abfd)) { | |
1041 | r_index = N_DATA | N_EXT; | |
1042 | r_addend += g->section->output_section->vma; | |
1043 | } | |
1044 | else if (g->section->output_section == obj_bsssec(abfd)) { | |
1045 | r_index = N_BSS | N_EXT ; | |
1046 | r_addend += g->section->output_section->vma; | |
1047 | } | |
1048 | else { | |
1049 | BFD_ASSERT(0); | |
1050 | } | |
1051 | } | |
1052 | ||
1053 | /* now the fun stuff */ | |
1054 | if (abfd->xvec->header_byteorder_big_p != false) { | |
1055 | natptr->r_index[0] = r_index >> 16; | |
1056 | natptr->r_index[1] = r_index >> 8; | |
1057 | natptr->r_index[2] = r_index; | |
1058 | natptr->r_type[0] = | |
1059 | (r_extern? RELOC_STD_BITS_EXTERN_BIG: 0) | |
1060 | | (r_pcrel? RELOC_STD_BITS_PCREL_BIG: 0) | |
1061 | | (r_baserel? RELOC_STD_BITS_BASEREL_BIG: 0) | |
1062 | | (r_jmptable? RELOC_STD_BITS_JMPTABLE_BIG: 0) | |
1063 | | (r_relative? RELOC_STD_BITS_RELATIVE_BIG: 0) | |
1064 | | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG); | |
1065 | } else { | |
1066 | natptr->r_index[2] = r_index >> 16; | |
1067 | natptr->r_index[1] = r_index >> 8; | |
1068 | natptr->r_index[0] = r_index; | |
1069 | natptr->r_type[0] = | |
1070 | (r_extern? RELOC_STD_BITS_EXTERN_LITTLE: 0) | |
1071 | | (r_pcrel? RELOC_STD_BITS_PCREL_LITTLE: 0) | |
1072 | | (r_baserel? RELOC_STD_BITS_BASEREL_LITTLE: 0) | |
1073 | | (r_jmptable? RELOC_STD_BITS_JMPTABLE_LITTLE: 0) | |
1074 | | (r_relative? RELOC_STD_BITS_RELATIVE_LITTLE: 0) | |
1075 | | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE); | |
1076 | } | |
1077 | } | |
1078 | ||
1079 | ||
1080 | /* Extended stuff */ | |
1081 | /* Output extended relocation information to a file in target byte order. */ | |
1082 | ||
1083 | void | |
1084 | DEFUN(NAME(aout,swap_ext_reloc_out),(abfd, g, natptr), | |
1085 | bfd *abfd AND | |
1086 | arelent *g AND | |
1087 | register struct reloc_ext_external *natptr) | |
1088 | { | |
1089 | int r_index; | |
1090 | int r_extern; | |
1091 | unsigned int r_type; | |
1092 | unsigned int r_addend; | |
1093 | ||
1094 | PUT_WORD (abfd, g->address, natptr->r_address); | |
1095 | ||
1096 | /* Find a type in the output format which matches the input howto - | |
1097 | at the moment we assume input format == output format FIXME!! */ | |
1098 | r_type = (enum reloc_type) g->howto->type; | |
1099 | ||
1100 | r_addend = g->addend; /* Start here, see how it goes */ | |
1101 | ||
1102 | /* name was clobbered by aout_write_syms to be symbol index*/ | |
1103 | ||
1104 | if (g->sym_ptr_ptr != NULL) | |
1105 | { | |
1106 | if ((*(g->sym_ptr_ptr))->section) { | |
1107 | /* put the section offset into the addend for output */ | |
1108 | r_addend += (*(g->sym_ptr_ptr))->section->vma; | |
1109 | } | |
1110 | ||
1111 | r_index = stoi((*(g->sym_ptr_ptr))->name); | |
1112 | r_extern = 1; | |
1113 | } | |
1114 | else { | |
1115 | r_extern = 0; | |
1116 | if (g->section == NULL) { | |
1117 | BFD_ASSERT(0); | |
1118 | r_index = N_ABS | N_EXT; | |
1119 | } | |
1120 | else if(g->section->output_section == obj_textsec(abfd)) { | |
1121 | r_index = N_TEXT | N_EXT; | |
1122 | r_addend += g->section->output_section->vma; | |
1123 | } | |
1124 | else if (g->section->output_section == obj_datasec(abfd)) { | |
1125 | r_index = N_DATA | N_EXT; | |
1126 | r_addend += g->section->output_section->vma; | |
1127 | } | |
1128 | else if (g->section->output_section == obj_bsssec(abfd)) { | |
1129 | r_index = N_BSS | N_EXT ; | |
1130 | r_addend += g->section->output_section->vma; | |
1131 | } | |
1132 | else { | |
1133 | BFD_ASSERT(0); | |
1134 | } | |
1135 | } | |
1136 | ||
1137 | /* now the fun stuff */ | |
1138 | if (abfd->xvec->header_byteorder_big_p != false) { | |
1139 | natptr->r_index[0] = r_index >> 16; | |
1140 | natptr->r_index[1] = r_index >> 8; | |
1141 | natptr->r_index[2] = r_index; | |
1142 | natptr->r_type[0] = | |
1143 | (r_extern? RELOC_EXT_BITS_EXTERN_BIG: 0) | |
1144 | | (r_type << RELOC_EXT_BITS_TYPE_SH_BIG); | |
1145 | } else { | |
1146 | natptr->r_index[2] = r_index >> 16; | |
1147 | natptr->r_index[1] = r_index >> 8; | |
1148 | natptr->r_index[0] = r_index; | |
1149 | natptr->r_type[0] = | |
1150 | (r_extern? RELOC_EXT_BITS_EXTERN_LITTLE: 0) | |
1151 | | (r_type << RELOC_EXT_BITS_TYPE_SH_LITTLE); | |
1152 | } | |
1153 | ||
1154 | PUT_WORD (abfd, r_addend, natptr->r_addend); | |
1155 | } | |
1156 | ||
1157 | #define MOVE_ADDRESS(ad) \ | |
1158 | if (r_extern) { \ | |
1159 | cache_ptr->sym_ptr_ptr = symbols + r_index; \ | |
1160 | cache_ptr->section = (asection *)NULL; \ | |
1161 | cache_ptr->addend = ad; \ | |
1162 | } else { \ | |
1163 | cache_ptr->sym_ptr_ptr = (asymbol **)NULL; \ | |
1164 | switch (r_index) { \ | |
1165 | case N_TEXT: \ | |
1166 | case N_TEXT | N_EXT: \ | |
1167 | cache_ptr->section = obj_textsec(abfd); \ | |
1168 | cache_ptr->addend = ad - su->textsec->vma; \ | |
1169 | break; \ | |
1170 | case N_DATA: \ | |
1171 | case N_DATA | N_EXT: \ | |
1172 | cache_ptr->section = obj_datasec(abfd); \ | |
1173 | cache_ptr->addend = ad - su->datasec->vma; \ | |
1174 | break; \ | |
1175 | case N_BSS: \ | |
1176 | case N_BSS | N_EXT: \ | |
1177 | cache_ptr->section = obj_bsssec(abfd); \ | |
1178 | cache_ptr->addend = ad - su->bsssec->vma; \ | |
1179 | break; \ | |
1180 | case N_ABS: \ | |
1181 | case N_ABS | N_EXT: \ | |
1182 | cache_ptr->section = NULL; /* No section */ \ | |
1183 | cache_ptr->addend = ad; /* FIXME, is this right? */ \ | |
1184 | BFD_ASSERT(1); \ | |
1185 | break; \ | |
1186 | default: \ | |
1187 | cache_ptr->section = NULL; /* No section */ \ | |
1188 | cache_ptr->addend = ad; /* FIXME, is this right? */ \ | |
1189 | BFD_ASSERT(1); \ | |
1190 | break; \ | |
1191 | } \ | |
1192 | } \ | |
1193 | ||
1194 | void | |
1195 | DEFUN(NAME(aout,swap_ext_reloc_in), (abfd, bytes, cache_ptr, symbols), | |
1196 | bfd *abfd AND | |
1197 | struct reloc_ext_external *bytes AND | |
1198 | arelent *cache_ptr AND | |
1199 | asymbol **symbols) | |
1200 | { | |
1201 | int r_index; | |
1202 | int r_extern; | |
1203 | unsigned int r_type; | |
1204 | struct aoutdata *su = (struct aoutdata *)(abfd->tdata); | |
1205 | ||
1206 | cache_ptr->address = (GET_SWORD (abfd, bytes->r_address)); | |
1207 | ||
1208 | /* now the fun stuff */ | |
1209 | if (abfd->xvec->header_byteorder_big_p != false) { | |
1210 | r_index = (bytes->r_index[0] << 16) | |
1211 | | (bytes->r_index[1] << 8) | |
1212 | | bytes->r_index[2]; | |
1213 | r_extern = (0 != (bytes->r_type[0] & RELOC_EXT_BITS_EXTERN_BIG)); | |
1214 | r_type = (bytes->r_type[0] & RELOC_EXT_BITS_TYPE_BIG) | |
1215 | >> RELOC_EXT_BITS_TYPE_SH_BIG; | |
1216 | } else { | |
1217 | r_index = (bytes->r_index[2] << 16) | |
1218 | | (bytes->r_index[1] << 8) | |
1219 | | bytes->r_index[0]; | |
1220 | r_extern = (0 != (bytes->r_type[0] & RELOC_EXT_BITS_EXTERN_LITTLE)); | |
1221 | r_type = (bytes->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE) | |
1222 | >> RELOC_EXT_BITS_TYPE_SH_LITTLE; | |
1223 | } | |
1224 | ||
1225 | cache_ptr->howto = howto_table_ext + r_type; | |
1226 | MOVE_ADDRESS(GET_SWORD(abfd,bytes->r_addend)); | |
1227 | } | |
1228 | ||
1229 | void | |
1230 | DEFUN(NAME(aout,swap_std_reloc_in), (abfd, bytes, cache_ptr, symbols), | |
1231 | bfd *abfd AND | |
1232 | struct reloc_std_external *bytes AND | |
1233 | arelent *cache_ptr AND | |
1234 | asymbol **symbols) | |
1235 | { | |
1236 | int r_index; | |
1237 | int r_extern; | |
1238 | unsigned int r_length; | |
1239 | int r_pcrel; | |
1240 | int r_baserel, r_jmptable, r_relative; | |
1241 | struct aoutdata *su = (struct aoutdata *)(abfd->tdata); | |
1242 | ||
1243 | cache_ptr->address = (int32_type)(bfd_h_get_32 (abfd, bytes->r_address)); | |
1244 | ||
1245 | /* now the fun stuff */ | |
1246 | if (abfd->xvec->header_byteorder_big_p != false) { | |
1247 | r_index = (bytes->r_index[0] << 16) | |
1248 | | (bytes->r_index[1] << 8) | |
1249 | | bytes->r_index[2]; | |
1250 | r_extern = (0 != (bytes->r_type[0] & RELOC_STD_BITS_EXTERN_BIG)); | |
1251 | r_pcrel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_PCREL_BIG)); | |
1252 | r_baserel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_BASEREL_BIG)); | |
1253 | r_jmptable= (0 != (bytes->r_type[0] & RELOC_STD_BITS_JMPTABLE_BIG)); | |
1254 | r_relative= (0 != (bytes->r_type[0] & RELOC_STD_BITS_RELATIVE_BIG)); | |
1255 | r_length = (bytes->r_type[0] & RELOC_STD_BITS_LENGTH_BIG) | |
1256 | >> RELOC_STD_BITS_LENGTH_SH_BIG; | |
1257 | } else { | |
1258 | r_index = (bytes->r_index[2] << 16) | |
1259 | | (bytes->r_index[1] << 8) | |
1260 | | bytes->r_index[0]; | |
1261 | r_extern = (0 != (bytes->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE)); | |
1262 | r_pcrel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE)); | |
1263 | r_baserel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_BASEREL_LITTLE)); | |
1264 | r_jmptable= (0 != (bytes->r_type[0] & RELOC_STD_BITS_JMPTABLE_LITTLE)); | |
1265 | r_relative= (0 != (bytes->r_type[0] & RELOC_STD_BITS_RELATIVE_LITTLE)); | |
1266 | r_length = (bytes->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE) | |
1267 | >> RELOC_STD_BITS_LENGTH_SH_LITTLE; | |
1268 | } | |
1269 | ||
1270 | cache_ptr->howto = howto_table_std + r_length + 4 * r_pcrel; | |
1271 | /* FIXME-soon: Roll baserel, jmptable, relative bits into howto setting */ | |
1272 | ||
1273 | MOVE_ADDRESS(0); | |
1274 | } | |
1275 | ||
1276 | /* Reloc hackery */ | |
1277 | ||
1278 | boolean | |
1279 | DEFUN(NAME(aout,slurp_reloc_table),(abfd, asect, symbols), | |
1280 | bfd *abfd AND | |
1281 | sec_ptr asect AND | |
1282 | asymbol **symbols) | |
1283 | { | |
1284 | unsigned int count; | |
1285 | bfd_size_type reloc_size; | |
1286 | PTR relocs; | |
1287 | arelent *reloc_cache; | |
1288 | size_t each_size; | |
1289 | ||
1290 | if (asect->relocation) return true; | |
1291 | ||
1292 | if (asect->flags & SEC_CONSTRUCTOR) return true; | |
1293 | ||
1294 | if (asect == obj_datasec (abfd)) { | |
1295 | reloc_size = exec_hdr(abfd)->a_drsize; | |
1296 | goto doit; | |
1297 | } | |
1298 | ||
1299 | if (asect == obj_textsec (abfd)) { | |
1300 | reloc_size = exec_hdr(abfd)->a_trsize; | |
1301 | goto doit; | |
1302 | } | |
1303 | ||
1304 | bfd_error = invalid_operation; | |
1305 | return false; | |
1306 | ||
1307 | doit: | |
1308 | bfd_seek (abfd, asect->rel_filepos, SEEK_SET); | |
1309 | each_size = obj_reloc_entry_size (abfd); | |
1310 | ||
1311 | count = reloc_size / each_size; | |
1312 | ||
1313 | ||
1314 | reloc_cache = (arelent *) bfd_zalloc (abfd, (size_t)(count * sizeof | |
1315 | (arelent))); | |
1316 | if (!reloc_cache) { | |
1317 | nomem: | |
1318 | bfd_error = no_memory; | |
1319 | return false; | |
1320 | } | |
1321 | ||
1322 | relocs = (PTR) bfd_alloc (abfd, reloc_size); | |
1323 | if (!relocs) { | |
1324 | bfd_release (abfd, reloc_cache); | |
1325 | goto nomem; | |
1326 | } | |
1327 | ||
1328 | if (bfd_read (relocs, 1, reloc_size, abfd) != reloc_size) { | |
1329 | bfd_release (abfd, relocs); | |
1330 | bfd_release (abfd, reloc_cache); | |
1331 | bfd_error = system_call_error; | |
1332 | return false; | |
1333 | } | |
1334 | ||
1335 | if (each_size == RELOC_EXT_SIZE) { | |
1336 | register struct reloc_ext_external *rptr = (struct reloc_ext_external *) relocs; | |
1337 | unsigned int counter = 0; | |
1338 | arelent *cache_ptr = reloc_cache; | |
1339 | ||
1340 | for (; counter < count; counter++, rptr++, cache_ptr++) { | |
1341 | NAME(aout,swap_ext_reloc_in)(abfd, rptr, cache_ptr, symbols); | |
1342 | } | |
1343 | } else { | |
1344 | register struct reloc_std_external *rptr = (struct reloc_std_external*) relocs; | |
1345 | unsigned int counter = 0; | |
1346 | arelent *cache_ptr = reloc_cache; | |
1347 | ||
1348 | for (; counter < count; counter++, rptr++, cache_ptr++) { | |
1349 | NAME(aout,swap_std_reloc_in)(abfd, rptr, cache_ptr, symbols); | |
1350 | } | |
1351 | ||
1352 | } | |
1353 | ||
1354 | bfd_release (abfd,relocs); | |
1355 | asect->relocation = reloc_cache; | |
1356 | asect->reloc_count = count; | |
1357 | return true; | |
1358 | } | |
1359 | ||
1360 | ||
1361 | ||
1362 | /* Write out a relocation section into an object file. */ | |
1363 | ||
1364 | boolean | |
1365 | DEFUN(NAME(aout,squirt_out_relocs),(abfd, section), | |
1366 | bfd *abfd AND | |
1367 | asection *section) | |
1368 | { | |
1369 | arelent **generic; | |
1370 | unsigned char *native, *natptr; | |
1371 | size_t each_size; | |
1372 | ||
1373 | unsigned int count = section->reloc_count; | |
1374 | size_t natsize; | |
1375 | ||
1376 | if (count == 0) return true; | |
1377 | ||
1378 | each_size = obj_reloc_entry_size (abfd); | |
1379 | natsize = each_size * count; | |
1380 | native = (unsigned char *) bfd_zalloc (abfd, natsize); | |
1381 | if (!native) { | |
1382 | bfd_error = no_memory; | |
1383 | return false; | |
1384 | } | |
1385 | ||
1386 | generic = section->orelocation; | |
1387 | ||
1388 | if (each_size == RELOC_EXT_SIZE) | |
1389 | { | |
1390 | for (natptr = native; | |
1391 | count != 0; | |
1392 | --count, natptr += each_size, ++generic) | |
1393 | NAME(aout,swap_ext_reloc_out) (abfd, *generic, (struct reloc_ext_external *)natptr); | |
1394 | } | |
1395 | else | |
1396 | { | |
1397 | for (natptr = native; | |
1398 | count != 0; | |
1399 | --count, natptr += each_size, ++generic) | |
1400 | NAME(aout,swap_std_reloc_out)(abfd, *generic, (struct reloc_std_external *)natptr); | |
1401 | } | |
1402 | ||
1403 | if ( bfd_write ((PTR) native, 1, natsize, abfd) != natsize) { | |
1404 | bfd_release(abfd, native); | |
1405 | return false; | |
1406 | } | |
1407 | bfd_release (abfd, native); | |
1408 | ||
1409 | return true; | |
1410 | } | |
1411 | ||
1412 | /* This is stupid. This function should be a boolean predicate */ | |
1413 | unsigned int | |
1414 | DEFUN(NAME(aout,canonicalize_reloc),(abfd, section, relptr, symbols), | |
1415 | bfd *abfd AND | |
1416 | sec_ptr section AND | |
1417 | arelent **relptr AND | |
1418 | asymbol **symbols) | |
1419 | { | |
1420 | arelent *tblptr = section->relocation; | |
1421 | unsigned int count; | |
1422 | ||
1423 | if (!(tblptr || NAME(aout,slurp_reloc_table)(abfd, section, symbols))) | |
1424 | return 0; | |
1425 | ||
1426 | if (section->flags & SEC_CONSTRUCTOR) { | |
1427 | arelent_chain *chain = section->constructor_chain; | |
1428 | for (count = 0; count < section->reloc_count; count ++) { | |
1429 | *relptr ++ = &chain->relent; | |
1430 | chain = chain->next; | |
1431 | } | |
1432 | } | |
1433 | else { | |
1434 | tblptr = section->relocation; | |
1435 | if (!tblptr) return 0; | |
1436 | ||
1437 | for (count = 0; count++ < section->reloc_count;) | |
1438 | { | |
1439 | *relptr++ = tblptr++; | |
1440 | } | |
1441 | } | |
1442 | *relptr = 0; | |
1443 | ||
1444 | return section->reloc_count; | |
1445 | } | |
1446 | ||
1447 | unsigned int | |
1448 | DEFUN(NAME(aout,get_reloc_upper_bound),(abfd, asect), | |
1449 | bfd *abfd AND | |
1450 | sec_ptr asect) | |
1451 | { | |
1452 | if (bfd_get_format (abfd) != bfd_object) { | |
1453 | bfd_error = invalid_operation; | |
1454 | return 0; | |
1455 | } | |
1456 | if (asect->flags & SEC_CONSTRUCTOR) { | |
1457 | return (sizeof (arelent *) * (asect->reloc_count+1)); | |
1458 | } | |
1459 | ||
1460 | ||
1461 | if (asect == obj_datasec (abfd)) | |
1462 | return (sizeof (arelent *) * | |
1463 | ((exec_hdr(abfd)->a_drsize / obj_reloc_entry_size (abfd)) | |
1464 | +1)); | |
1465 | ||
1466 | if (asect == obj_textsec (abfd)) | |
1467 | return (sizeof (arelent *) * | |
1468 | ((exec_hdr(abfd)->a_trsize / obj_reloc_entry_size (abfd)) | |
1469 | +1)); | |
1470 | ||
1471 | bfd_error = invalid_operation; | |
1472 | return 0; | |
1473 | } | |
1474 | ||
1475 | \f | |
1476 | unsigned int | |
1477 | DEFUN(NAME(aout,get_symtab_upper_bound),(abfd), | |
1478 | bfd *abfd) | |
1479 | { | |
1480 | if (!NAME(aout,slurp_symbol_table)(abfd)) return 0; | |
1481 | ||
1482 | return (bfd_get_symcount (abfd)+1) * (sizeof (aout_symbol_type *)); | |
1483 | } | |
1484 | alent * | |
1485 | DEFUN(NAME(aout,get_lineno),(ignore_abfd, ignore_symbol), | |
1486 | bfd *ignore_abfd AND | |
1487 | asymbol *ignore_symbol) | |
1488 | { | |
1489 | return (alent *)NULL; | |
1490 | } | |
1491 | ||
1492 | ||
1493 | void | |
1494 | DEFUN(NAME(aout,print_symbol),(ignore_abfd, afile, symbol, how), | |
1495 | bfd *ignore_abfd AND | |
1496 | PTR afile AND | |
1497 | asymbol *symbol AND | |
1498 | bfd_print_symbol_enum_type how) | |
1499 | { | |
1500 | FILE *file = (FILE *)afile; | |
1501 | ||
1502 | switch (how) { | |
1503 | case bfd_print_symbol_name_enum: | |
1504 | fprintf(file,"%s", symbol->name); | |
1505 | break; | |
1506 | case bfd_print_symbol_type_enum: | |
1507 | fprintf(file,"%4x %2x %2x",(unsigned)(aout_symbol(symbol)->desc & 0xffff), | |
1508 | (unsigned)(aout_symbol(symbol)->other & 0xff), | |
1509 | (unsigned)(aout_symbol(symbol)->type)); | |
1510 | break; | |
1511 | case bfd_print_symbol_all_enum: | |
1512 | { | |
1513 | CONST char *section_name = symbol->section == (asection *)NULL ? | |
1514 | "*abs" : symbol->section->name; | |
1515 | ||
1516 | bfd_print_symbol_vandf((PTR)file,symbol); | |
1517 | ||
1518 | fprintf(file," %-5s %04x %02x %02x %s", | |
1519 | section_name, | |
1520 | (unsigned)(aout_symbol(symbol)->desc & 0xffff), | |
1521 | (unsigned)(aout_symbol(symbol)->other & 0xff), | |
1522 | (unsigned)(aout_symbol(symbol)->type & 0xff), | |
1523 | symbol->name); | |
1524 | } | |
1525 | break; | |
1526 | } | |
1527 | } | |
1528 | ||
1529 | /* | |
1530 | provided a bfd, a section and an offset into the section, calculate | |
1531 | and return the name of the source file and the line nearest to the | |
1532 | wanted location. | |
1533 | */ | |
1534 | ||
1535 | boolean | |
1536 | DEFUN(NAME(aout,find_nearest_line),(abfd, | |
1537 | section, | |
1538 | symbols, | |
1539 | offset, | |
1540 | filename_ptr, | |
1541 | functionname_ptr, | |
1542 | line_ptr), | |
1543 | bfd *abfd AND | |
1544 | asection *section AND | |
1545 | asymbol **symbols AND | |
1546 | bfd_vma offset AND | |
1547 | CONST char **filename_ptr AND | |
1548 | CONST char **functionname_ptr AND | |
1549 | unsigned int *line_ptr) | |
1550 | { | |
1551 | /* Run down the file looking for the filename, function and linenumber */ | |
1552 | asymbol **p; | |
1553 | static char buffer[100]; | |
1554 | bfd_vma high_line_vma = ~0; | |
1555 | bfd_vma low_func_vma = 0; | |
1556 | asymbol *func = 0; | |
1557 | *filename_ptr = abfd->filename; | |
1558 | *functionname_ptr = 0; | |
1559 | *line_ptr = 0; | |
1560 | if (symbols != (asymbol **)NULL) { | |
1561 | for (p = symbols; *p; p++) { | |
1562 | aout_symbol_type *q = (aout_symbol_type *)(*p); | |
1563 | switch (q->type){ | |
1564 | case N_SO: | |
1565 | *filename_ptr = q->symbol.name; | |
1566 | if (obj_textsec(abfd) != section) { | |
1567 | return true; | |
1568 | } | |
1569 | break; | |
1570 | case N_SLINE: | |
1571 | ||
1572 | case N_DSLINE: | |
1573 | case N_BSLINE: | |
1574 | /* We'll keep this if it resolves nearer than the one we have already */ | |
1575 | if (q->symbol.value >= offset && | |
1576 | q->symbol.value < high_line_vma) { | |
1577 | *line_ptr = q->desc; | |
1578 | high_line_vma = q->symbol.value; | |
1579 | } | |
1580 | break; | |
1581 | case N_FUN: | |
1582 | { | |
1583 | /* We'll keep this if it is nearer than the one we have already */ | |
1584 | if (q->symbol.value >= low_func_vma && | |
1585 | q->symbol.value <= offset) { | |
1586 | low_func_vma = q->symbol.value; | |
1587 | func = (asymbol *)q; | |
1588 | } | |
1589 | if (*line_ptr && func) { | |
1590 | CONST char *function = func->name; | |
1591 | char *p; | |
1592 | strncpy(buffer, function, sizeof(buffer)-1); | |
1593 | buffer[sizeof(buffer)-1] = 0; | |
1594 | /* Have to remove : stuff */ | |
1595 | p = strchr(buffer,':'); | |
6f715d66 | 1596 | if (p != NULL) { *p = NULL; } |
7ed4093a SC |
1597 | *functionname_ptr = buffer; |
1598 | return true; | |
1599 | ||
1600 | } | |
1601 | } | |
1602 | break; | |
1603 | } | |
1604 | } | |
1605 | } | |
1606 | ||
1607 | return true; | |
1608 | ||
1609 | } | |
1610 | ||
1611 | int | |
1612 | DEFUN(NAME(aout,sizeof_headers),(ignore_abfd, execable), | |
1613 | bfd *ignore_abfd AND | |
1614 | boolean execable) | |
1615 | { | |
1616 | return EXEC_BYTES_SIZE; | |
1617 | } |