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252b5132 | 1 | /* Support for the generic parts of most COFF variants, for BFD. |
17505c5c | 2 | Copyright 1990, 91, 92, 93, 94, 95, 96, 97, 98, 99, 2000 |
252b5132 RH |
3 | Free Software Foundation, Inc. |
4 | Written by Cygnus Support. | |
5 | ||
6 | This file is part of BFD, the Binary File Descriptor library. | |
7 | ||
8 | This program 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 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program 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 this program; if not, write to the Free Software | |
20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
21 | ||
22 | /* | |
23 | Most of this hacked by Steve Chamberlain, | |
24 | sac@cygnus.com | |
25 | */ | |
26 | /* | |
27 | ||
28 | SECTION | |
29 | coff backends | |
30 | ||
31 | BFD supports a number of different flavours of coff format. | |
32 | The major differences between formats are the sizes and | |
33 | alignments of fields in structures on disk, and the occasional | |
34 | extra field. | |
35 | ||
36 | Coff in all its varieties is implemented with a few common | |
37 | files and a number of implementation specific files. For | |
38 | example, The 88k bcs coff format is implemented in the file | |
39 | @file{coff-m88k.c}. This file @code{#include}s | |
40 | @file{coff/m88k.h} which defines the external structure of the | |
41 | coff format for the 88k, and @file{coff/internal.h} which | |
42 | defines the internal structure. @file{coff-m88k.c} also | |
43 | defines the relocations used by the 88k format | |
44 | @xref{Relocations}. | |
45 | ||
46 | The Intel i960 processor version of coff is implemented in | |
47 | @file{coff-i960.c}. This file has the same structure as | |
48 | @file{coff-m88k.c}, except that it includes @file{coff/i960.h} | |
49 | rather than @file{coff-m88k.h}. | |
50 | ||
51 | SUBSECTION | |
52 | Porting to a new version of coff | |
53 | ||
54 | The recommended method is to select from the existing | |
55 | implementations the version of coff which is most like the one | |
56 | you want to use. For example, we'll say that i386 coff is | |
57 | the one you select, and that your coff flavour is called foo. | |
58 | Copy @file{i386coff.c} to @file{foocoff.c}, copy | |
59 | @file{../include/coff/i386.h} to @file{../include/coff/foo.h}, | |
60 | and add the lines to @file{targets.c} and @file{Makefile.in} | |
61 | so that your new back end is used. Alter the shapes of the | |
62 | structures in @file{../include/coff/foo.h} so that they match | |
63 | what you need. You will probably also have to add | |
64 | @code{#ifdef}s to the code in @file{coff/internal.h} and | |
65 | @file{coffcode.h} if your version of coff is too wild. | |
66 | ||
67 | You can verify that your new BFD backend works quite simply by | |
68 | building @file{objdump} from the @file{binutils} directory, | |
69 | and making sure that its version of what's going on and your | |
70 | host system's idea (assuming it has the pretty standard coff | |
71 | dump utility, usually called @code{att-dump} or just | |
72 | @code{dump}) are the same. Then clean up your code, and send | |
73 | what you've done to Cygnus. Then your stuff will be in the | |
74 | next release, and you won't have to keep integrating it. | |
75 | ||
76 | SUBSECTION | |
77 | How the coff backend works | |
78 | ||
79 | SUBSUBSECTION | |
80 | File layout | |
81 | ||
82 | The Coff backend is split into generic routines that are | |
83 | applicable to any Coff target and routines that are specific | |
84 | to a particular target. The target-specific routines are | |
85 | further split into ones which are basically the same for all | |
86 | Coff targets except that they use the external symbol format | |
87 | or use different values for certain constants. | |
88 | ||
89 | The generic routines are in @file{coffgen.c}. These routines | |
90 | work for any Coff target. They use some hooks into the target | |
91 | specific code; the hooks are in a @code{bfd_coff_backend_data} | |
92 | structure, one of which exists for each target. | |
93 | ||
94 | The essentially similar target-specific routines are in | |
95 | @file{coffcode.h}. This header file includes executable C code. | |
96 | The various Coff targets first include the appropriate Coff | |
97 | header file, make any special defines that are needed, and | |
98 | then include @file{coffcode.h}. | |
99 | ||
100 | Some of the Coff targets then also have additional routines in | |
101 | the target source file itself. | |
102 | ||
103 | For example, @file{coff-i960.c} includes | |
104 | @file{coff/internal.h} and @file{coff/i960.h}. It then | |
105 | defines a few constants, such as @code{I960}, and includes | |
106 | @file{coffcode.h}. Since the i960 has complex relocation | |
107 | types, @file{coff-i960.c} also includes some code to | |
108 | manipulate the i960 relocs. This code is not in | |
109 | @file{coffcode.h} because it would not be used by any other | |
110 | target. | |
111 | ||
112 | SUBSUBSECTION | |
113 | Bit twiddling | |
114 | ||
115 | Each flavour of coff supported in BFD has its own header file | |
116 | describing the external layout of the structures. There is also | |
117 | an internal description of the coff layout, in | |
118 | @file{coff/internal.h}. A major function of the | |
119 | coff backend is swapping the bytes and twiddling the bits to | |
120 | translate the external form of the structures into the normal | |
121 | internal form. This is all performed in the | |
122 | @code{bfd_swap}_@i{thing}_@i{direction} routines. Some | |
123 | elements are different sizes between different versions of | |
124 | coff; it is the duty of the coff version specific include file | |
125 | to override the definitions of various packing routines in | |
126 | @file{coffcode.h}. E.g., the size of line number entry in coff is | |
127 | sometimes 16 bits, and sometimes 32 bits. @code{#define}ing | |
128 | @code{PUT_LNSZ_LNNO} and @code{GET_LNSZ_LNNO} will select the | |
129 | correct one. No doubt, some day someone will find a version of | |
130 | coff which has a varying field size not catered to at the | |
131 | moment. To port BFD, that person will have to add more @code{#defines}. | |
132 | Three of the bit twiddling routines are exported to | |
133 | @code{gdb}; @code{coff_swap_aux_in}, @code{coff_swap_sym_in} | |
00692651 | 134 | and @code{coff_swap_lineno_in}. @code{GDB} reads the symbol |
252b5132 RH |
135 | table on its own, but uses BFD to fix things up. More of the |
136 | bit twiddlers are exported for @code{gas}; | |
137 | @code{coff_swap_aux_out}, @code{coff_swap_sym_out}, | |
138 | @code{coff_swap_lineno_out}, @code{coff_swap_reloc_out}, | |
139 | @code{coff_swap_filehdr_out}, @code{coff_swap_aouthdr_out}, | |
140 | @code{coff_swap_scnhdr_out}. @code{Gas} currently keeps track | |
141 | of all the symbol table and reloc drudgery itself, thereby | |
142 | saving the internal BFD overhead, but uses BFD to swap things | |
143 | on the way out, making cross ports much safer. Doing so also | |
144 | allows BFD (and thus the linker) to use the same header files | |
145 | as @code{gas}, which makes one avenue to disaster disappear. | |
146 | ||
147 | SUBSUBSECTION | |
148 | Symbol reading | |
149 | ||
150 | The simple canonical form for symbols used by BFD is not rich | |
151 | enough to keep all the information available in a coff symbol | |
152 | table. The back end gets around this problem by keeping the original | |
153 | symbol table around, "behind the scenes". | |
154 | ||
155 | When a symbol table is requested (through a call to | |
156 | @code{bfd_canonicalize_symtab}), a request gets through to | |
157 | @code{coff_get_normalized_symtab}. This reads the symbol table from | |
158 | the coff file and swaps all the structures inside into the | |
159 | internal form. It also fixes up all the pointers in the table | |
160 | (represented in the file by offsets from the first symbol in | |
161 | the table) into physical pointers to elements in the new | |
162 | internal table. This involves some work since the meanings of | |
163 | fields change depending upon context: a field that is a | |
164 | pointer to another structure in the symbol table at one moment | |
165 | may be the size in bytes of a structure at the next. Another | |
166 | pass is made over the table. All symbols which mark file names | |
167 | (<<C_FILE>> symbols) are modified so that the internal | |
168 | string points to the value in the auxent (the real filename) | |
169 | rather than the normal text associated with the symbol | |
170 | (@code{".file"}). | |
171 | ||
172 | At this time the symbol names are moved around. Coff stores | |
173 | all symbols less than nine characters long physically | |
174 | within the symbol table; longer strings are kept at the end of | |
175 | the file in the string table. This pass moves all strings | |
176 | into memory and replaces them with pointers to the strings. | |
177 | ||
178 | ||
179 | The symbol table is massaged once again, this time to create | |
180 | the canonical table used by the BFD application. Each symbol | |
181 | is inspected in turn, and a decision made (using the | |
182 | @code{sclass} field) about the various flags to set in the | |
183 | @code{asymbol}. @xref{Symbols}. The generated canonical table | |
184 | shares strings with the hidden internal symbol table. | |
185 | ||
186 | Any linenumbers are read from the coff file too, and attached | |
187 | to the symbols which own the functions the linenumbers belong to. | |
188 | ||
189 | SUBSUBSECTION | |
190 | Symbol writing | |
191 | ||
192 | Writing a symbol to a coff file which didn't come from a coff | |
193 | file will lose any debugging information. The @code{asymbol} | |
194 | structure remembers the BFD from which the symbol was taken, and on | |
195 | output the back end makes sure that the same destination target as | |
196 | source target is present. | |
197 | ||
198 | When the symbols have come from a coff file then all the | |
199 | debugging information is preserved. | |
200 | ||
201 | Symbol tables are provided for writing to the back end in a | |
202 | vector of pointers to pointers. This allows applications like | |
203 | the linker to accumulate and output large symbol tables | |
204 | without having to do too much byte copying. | |
205 | ||
206 | This function runs through the provided symbol table and | |
207 | patches each symbol marked as a file place holder | |
208 | (@code{C_FILE}) to point to the next file place holder in the | |
209 | list. It also marks each @code{offset} field in the list with | |
210 | the offset from the first symbol of the current symbol. | |
211 | ||
212 | Another function of this procedure is to turn the canonical | |
213 | value form of BFD into the form used by coff. Internally, BFD | |
214 | expects symbol values to be offsets from a section base; so a | |
215 | symbol physically at 0x120, but in a section starting at | |
216 | 0x100, would have the value 0x20. Coff expects symbols to | |
217 | contain their final value, so symbols have their values | |
218 | changed at this point to reflect their sum with their owning | |
219 | section. This transformation uses the | |
220 | <<output_section>> field of the @code{asymbol}'s | |
221 | @code{asection} @xref{Sections}. | |
222 | ||
223 | o <<coff_mangle_symbols>> | |
224 | ||
225 | This routine runs though the provided symbol table and uses | |
226 | the offsets generated by the previous pass and the pointers | |
227 | generated when the symbol table was read in to create the | |
228 | structured hierachy required by coff. It changes each pointer | |
229 | to a symbol into the index into the symbol table of the asymbol. | |
230 | ||
231 | o <<coff_write_symbols>> | |
232 | ||
233 | This routine runs through the symbol table and patches up the | |
234 | symbols from their internal form into the coff way, calls the | |
235 | bit twiddlers, and writes out the table to the file. | |
236 | ||
237 | */ | |
238 | ||
239 | /* | |
240 | INTERNAL_DEFINITION | |
241 | coff_symbol_type | |
242 | ||
243 | DESCRIPTION | |
244 | The hidden information for an <<asymbol>> is described in a | |
245 | <<combined_entry_type>>: | |
246 | ||
247 | CODE_FRAGMENT | |
248 | . | |
249 | .typedef struct coff_ptr_struct | |
250 | .{ | |
251 | . | |
252 | . {* Remembers the offset from the first symbol in the file for | |
253 | . this symbol. Generated by coff_renumber_symbols. *} | |
254 | .unsigned int offset; | |
255 | . | |
256 | . {* Should the value of this symbol be renumbered. Used for | |
257 | . XCOFF C_BSTAT symbols. Set by coff_slurp_symbol_table. *} | |
258 | .unsigned int fix_value : 1; | |
259 | . | |
260 | . {* Should the tag field of this symbol be renumbered. | |
261 | . Created by coff_pointerize_aux. *} | |
262 | .unsigned int fix_tag : 1; | |
263 | . | |
264 | . {* Should the endidx field of this symbol be renumbered. | |
265 | . Created by coff_pointerize_aux. *} | |
266 | .unsigned int fix_end : 1; | |
267 | . | |
268 | . {* Should the x_csect.x_scnlen field be renumbered. | |
269 | . Created by coff_pointerize_aux. *} | |
270 | .unsigned int fix_scnlen : 1; | |
271 | . | |
272 | . {* Fix up an XCOFF C_BINCL/C_EINCL symbol. The value is the | |
273 | . index into the line number entries. Set by | |
274 | . coff_slurp_symbol_table. *} | |
275 | .unsigned int fix_line : 1; | |
276 | . | |
277 | . {* The container for the symbol structure as read and translated | |
278 | . from the file. *} | |
279 | . | |
280 | .union { | |
281 | . union internal_auxent auxent; | |
282 | . struct internal_syment syment; | |
283 | . } u; | |
284 | .} combined_entry_type; | |
285 | . | |
286 | . | |
287 | .{* Each canonical asymbol really looks like this: *} | |
288 | . | |
289 | .typedef struct coff_symbol_struct | |
290 | .{ | |
291 | . {* The actual symbol which the rest of BFD works with *} | |
292 | .asymbol symbol; | |
293 | . | |
294 | . {* A pointer to the hidden information for this symbol *} | |
295 | .combined_entry_type *native; | |
296 | . | |
297 | . {* A pointer to the linenumber information for this symbol *} | |
298 | .struct lineno_cache_entry *lineno; | |
299 | . | |
300 | . {* Have the line numbers been relocated yet ? *} | |
301 | .boolean done_lineno; | |
302 | .} coff_symbol_type; | |
303 | ||
304 | ||
305 | */ | |
306 | ||
307 | #ifdef COFF_WITH_PE | |
308 | #include "peicode.h" | |
309 | #else | |
310 | #include "coffswap.h" | |
311 | #endif | |
312 | ||
313 | #define STRING_SIZE_SIZE (4) | |
314 | ||
315 | static long sec_to_styp_flags PARAMS ((const char *, flagword)); | |
41733515 ILT |
316 | static flagword styp_to_sec_flags |
317 | PARAMS ((bfd *, PTR, const char *, asection *)); | |
252b5132 | 318 | static boolean coff_bad_format_hook PARAMS ((bfd *, PTR)); |
5dccc1dd ILT |
319 | static void coff_set_custom_section_alignment |
320 | PARAMS ((bfd *, asection *, const struct coff_section_alignment_entry *, | |
8a1ad8e7 | 321 | const unsigned int)); |
252b5132 RH |
322 | static boolean coff_new_section_hook PARAMS ((bfd *, asection *)); |
323 | static boolean coff_set_arch_mach_hook PARAMS ((bfd *, PTR)); | |
324 | static boolean coff_write_relocs PARAMS ((bfd *, int)); | |
325 | static boolean coff_set_flags | |
326 | PARAMS ((bfd *, unsigned int *, unsigned short *)); | |
327 | static boolean coff_set_arch_mach | |
328 | PARAMS ((bfd *, enum bfd_architecture, unsigned long)); | |
329 | static boolean coff_compute_section_file_positions PARAMS ((bfd *)); | |
330 | static boolean coff_write_object_contents PARAMS ((bfd *)); | |
331 | static boolean coff_set_section_contents | |
332 | PARAMS ((bfd *, asection *, PTR, file_ptr, bfd_size_type)); | |
333 | static PTR buy_and_read PARAMS ((bfd *, file_ptr, int, size_t)); | |
334 | static boolean coff_slurp_line_table PARAMS ((bfd *, asection *)); | |
335 | static boolean coff_slurp_symbol_table PARAMS ((bfd *)); | |
5d54c628 ILT |
336 | static enum coff_symbol_classification coff_classify_symbol |
337 | PARAMS ((bfd *, struct internal_syment *)); | |
252b5132 RH |
338 | static boolean coff_slurp_reloc_table PARAMS ((bfd *, asection *, asymbol **)); |
339 | static long coff_canonicalize_reloc | |
340 | PARAMS ((bfd *, asection *, arelent **, asymbol **)); | |
341 | #ifndef coff_mkobject_hook | |
342 | static PTR coff_mkobject_hook PARAMS ((bfd *, PTR, PTR)); | |
343 | #endif | |
344 | \f | |
345 | /* void warning(); */ | |
346 | ||
41733515 ILT |
347 | /* Return a word with STYP_* (scnhdr.s_flags) flags set to represent |
348 | the incoming SEC_* flags. The inverse of this function is | |
349 | styp_to_sec_flags(). NOTE: If you add to/change this routine, you | |
350 | should probably mirror the changes in styp_to_sec_flags(). */ | |
351 | ||
352 | #ifndef COFF_WITH_PE | |
353 | ||
252b5132 RH |
354 | static long |
355 | sec_to_styp_flags (sec_name, sec_flags) | |
356 | CONST char *sec_name; | |
357 | flagword sec_flags; | |
358 | { | |
359 | long styp_flags = 0; | |
360 | ||
361 | if (!strcmp (sec_name, _TEXT)) | |
362 | { | |
363 | styp_flags = STYP_TEXT; | |
364 | } | |
365 | else if (!strcmp (sec_name, _DATA)) | |
366 | { | |
367 | styp_flags = STYP_DATA; | |
368 | } | |
369 | else if (!strcmp (sec_name, _BSS)) | |
370 | { | |
371 | styp_flags = STYP_BSS; | |
372 | #ifdef _COMMENT | |
373 | } | |
374 | else if (!strcmp (sec_name, _COMMENT)) | |
375 | { | |
376 | styp_flags = STYP_INFO; | |
377 | #endif /* _COMMENT */ | |
378 | #ifdef _LIB | |
379 | } | |
380 | else if (!strcmp (sec_name, _LIB)) | |
381 | { | |
382 | styp_flags = STYP_LIB; | |
383 | #endif /* _LIB */ | |
384 | #ifdef _LIT | |
385 | } | |
386 | else if (!strcmp (sec_name, _LIT)) | |
387 | { | |
388 | styp_flags = STYP_LIT; | |
389 | #endif /* _LIT */ | |
390 | } | |
391 | else if (!strcmp (sec_name, ".debug")) | |
392 | { | |
393 | #ifdef STYP_DEBUG | |
394 | styp_flags = STYP_DEBUG; | |
395 | #else | |
396 | styp_flags = STYP_INFO; | |
397 | #endif | |
398 | } | |
399 | else if (!strncmp (sec_name, ".stab", 5)) | |
400 | { | |
401 | styp_flags = STYP_INFO; | |
402 | } | |
252b5132 RH |
403 | #ifdef RS6000COFF_C |
404 | else if (!strcmp (sec_name, _PAD)) | |
405 | { | |
406 | styp_flags = STYP_PAD; | |
407 | } | |
408 | else if (!strcmp (sec_name, _LOADER)) | |
409 | { | |
410 | styp_flags = STYP_LOADER; | |
411 | } | |
412 | #endif | |
413 | /* Try and figure out what it should be */ | |
414 | else if (sec_flags & SEC_CODE) | |
415 | { | |
416 | styp_flags = STYP_TEXT; | |
417 | } | |
418 | else if (sec_flags & SEC_DATA) | |
419 | { | |
420 | styp_flags = STYP_DATA; | |
421 | } | |
422 | else if (sec_flags & SEC_READONLY) | |
423 | { | |
424 | #ifdef STYP_LIT /* 29k readonly text/data section */ | |
425 | styp_flags = STYP_LIT; | |
426 | #else | |
427 | styp_flags = STYP_TEXT; | |
428 | #endif /* STYP_LIT */ | |
429 | } | |
430 | else if (sec_flags & SEC_LOAD) | |
431 | { | |
432 | styp_flags = STYP_TEXT; | |
433 | } | |
434 | else if (sec_flags & SEC_ALLOC) | |
435 | { | |
436 | styp_flags = STYP_BSS; | |
437 | } | |
438 | ||
439 | #ifdef STYP_NOLOAD | |
440 | if ((sec_flags & (SEC_NEVER_LOAD | SEC_COFF_SHARED_LIBRARY)) != 0) | |
441 | styp_flags |= STYP_NOLOAD; | |
442 | #endif | |
443 | ||
41733515 ILT |
444 | return styp_flags; |
445 | } | |
446 | ||
447 | #else /* COFF_WITH_PE */ | |
448 | ||
449 | /* The PE version; see above for the general comments. The non-PE | |
450 | case seems to be more guessing, and breaks PE format; specifically, | |
451 | .rdata is readonly, but it sure ain't text. Really, all this | |
452 | should be set up properly in gas (or whatever assembler is in use), | |
453 | and honor whatever objcopy/strip, etc. sent us as input. */ | |
454 | ||
455 | static long | |
456 | sec_to_styp_flags (sec_name, sec_flags) | |
457 | const char *sec_name ATTRIBUTE_UNUSED; | |
458 | flagword sec_flags; | |
459 | { | |
460 | long styp_flags = 0; | |
461 | ||
462 | /* caution: there are at least three groups of symbols that have | |
463 | very similar bits and meanings: IMAGE_SCN*, SEC_*, and STYP_*. | |
464 | SEC_* are the BFD internal flags, used for generic BFD | |
465 | information. STYP_* are the COFF section flags which appear in | |
466 | COFF files. IMAGE_SCN_* are the PE section flags which appear in | |
467 | PE files. The STYP_* flags and the IMAGE_SCN_* flags overlap, | |
468 | but there are more IMAGE_SCN_* flags. */ | |
469 | ||
470 | /* skip LOAD */ | |
471 | /* READONLY later */ | |
472 | /* skip RELOC */ | |
473 | if ((sec_flags & SEC_CODE) != 0) | |
474 | styp_flags |= IMAGE_SCN_CNT_CODE; | |
475 | if ((sec_flags & SEC_DATA) != 0) | |
476 | styp_flags |= IMAGE_SCN_CNT_INITIALIZED_DATA; | |
477 | if ((sec_flags & SEC_ALLOC) != 0 && (sec_flags & SEC_LOAD) == 0) | |
478 | styp_flags |= IMAGE_SCN_CNT_UNINITIALIZED_DATA; /* ==STYP_BSS */ | |
479 | /* skip ROM */ | |
480 | /* skip CONSTRUCTOR */ | |
481 | /* skip CONTENTS */ | |
482 | #ifdef STYP_NOLOAD | |
483 | if ((sec_flags & (SEC_NEVER_LOAD | SEC_COFF_SHARED_LIBRARY)) != 0) | |
484 | styp_flags |= STYP_NOLOAD; | |
485 | #endif | |
486 | if ((sec_flags & SEC_IS_COMMON) != 0) | |
252b5132 | 487 | styp_flags |= IMAGE_SCN_LNK_COMDAT; |
41733515 ILT |
488 | if ((sec_flags & SEC_DEBUGGING) != 0) |
489 | styp_flags |= IMAGE_SCN_MEM_DISCARDABLE; | |
490 | if ((sec_flags & SEC_EXCLUDE) != 0) | |
491 | styp_flags |= IMAGE_SCN_LNK_REMOVE; | |
492 | if ((sec_flags & SEC_NEVER_LOAD) != 0) | |
493 | styp_flags |= IMAGE_SCN_LNK_REMOVE; | |
494 | /* skip IN_MEMORY */ | |
495 | /* skip SORT */ | |
496 | if (sec_flags & SEC_LINK_ONCE) | |
497 | styp_flags |= IMAGE_SCN_LNK_COMDAT; | |
498 | /* skip LINK_DUPLICATES */ | |
499 | /* skip LINKER_CREATED */ | |
500 | ||
501 | /* For now, the read/write bits are mapped onto SEC_READONLY, even | |
502 | though the semantics don't quite match. The bits from the input | |
503 | are retained in pei_section_data(abfd, section)->pe_flags */ | |
504 | ||
505 | styp_flags |= IMAGE_SCN_MEM_READ; /* always readable. */ | |
506 | if ((sec_flags & SEC_READONLY) == 0) | |
507 | styp_flags |= IMAGE_SCN_MEM_WRITE; /* Invert READONLY for write */ | |
508 | if (sec_flags & SEC_CODE) | |
509 | styp_flags |= IMAGE_SCN_MEM_EXECUTE; /* CODE->EXECUTE */ | |
bd826630 | 510 | if (sec_flags & SEC_SHARED) |
41733515 | 511 | styp_flags |= IMAGE_SCN_MEM_SHARED; /* Shared remains meaningful */ |
252b5132 | 512 | |
41733515 | 513 | return styp_flags; |
252b5132 | 514 | } |
41733515 ILT |
515 | |
516 | #endif /* COFF_WITH_PE */ | |
517 | ||
518 | /* Return a word with SEC_* flags set to represent the incoming STYP_* | |
519 | flags (from scnhdr.s_flags). The inverse of this function is | |
520 | sec_to_styp_flags(). NOTE: If you add to/change this routine, you | |
521 | should probably mirror the changes in sec_to_styp_flags(). */ | |
522 | ||
523 | #ifndef COFF_WITH_PE | |
524 | ||
252b5132 | 525 | static flagword |
41733515 | 526 | styp_to_sec_flags (abfd, hdr, name, section) |
5f771d47 | 527 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
528 | PTR hdr; |
529 | const char *name; | |
41733515 | 530 | asection *section ATTRIBUTE_UNUSED; |
252b5132 RH |
531 | { |
532 | struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr; | |
533 | long styp_flags = internal_s->s_flags; | |
534 | flagword sec_flags = 0; | |
535 | ||
536 | #ifdef STYP_NOLOAD | |
537 | if (styp_flags & STYP_NOLOAD) | |
538 | { | |
539 | sec_flags |= SEC_NEVER_LOAD; | |
540 | } | |
541 | #endif /* STYP_NOLOAD */ | |
542 | ||
543 | /* For 386 COFF, at least, an unloadable text or data section is | |
544 | actually a shared library section. */ | |
545 | if (styp_flags & STYP_TEXT) | |
546 | { | |
547 | if (sec_flags & SEC_NEVER_LOAD) | |
548 | sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY; | |
549 | else | |
550 | sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
551 | } | |
552 | else if (styp_flags & STYP_DATA) | |
553 | { | |
554 | if (sec_flags & SEC_NEVER_LOAD) | |
555 | sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY; | |
556 | else | |
557 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
558 | } | |
559 | else if (styp_flags & STYP_BSS) | |
560 | { | |
561 | #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY | |
562 | if (sec_flags & SEC_NEVER_LOAD) | |
563 | sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY; | |
564 | else | |
565 | #endif | |
566 | sec_flags |= SEC_ALLOC; | |
567 | } | |
568 | else if (styp_flags & STYP_INFO) | |
569 | { | |
570 | /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is | |
571 | defined. coff_compute_section_file_positions uses | |
572 | COFF_PAGE_SIZE to ensure that the low order bits of the | |
573 | section VMA and the file offset match. If we don't know | |
574 | COFF_PAGE_SIZE, we can't ensure the correct correspondence, | |
575 | and demand page loading of the file will fail. */ | |
576 | #if defined (COFF_PAGE_SIZE) && !defined (COFF_ALIGN_IN_S_FLAGS) | |
577 | sec_flags |= SEC_DEBUGGING; | |
578 | #endif | |
579 | } | |
580 | else if (styp_flags & STYP_PAD) | |
581 | { | |
582 | sec_flags = 0; | |
583 | } | |
584 | else if (strcmp (name, _TEXT) == 0) | |
585 | { | |
586 | if (sec_flags & SEC_NEVER_LOAD) | |
587 | sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY; | |
588 | else | |
589 | sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
590 | } | |
591 | else if (strcmp (name, _DATA) == 0) | |
592 | { | |
593 | if (sec_flags & SEC_NEVER_LOAD) | |
594 | sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY; | |
595 | else | |
596 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
597 | } | |
598 | else if (strcmp (name, _BSS) == 0) | |
599 | { | |
600 | #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY | |
601 | if (sec_flags & SEC_NEVER_LOAD) | |
602 | sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY; | |
603 | else | |
604 | #endif | |
605 | sec_flags |= SEC_ALLOC; | |
606 | } | |
607 | else if (strcmp (name, ".debug") == 0 | |
608 | #ifdef _COMMENT | |
609 | || strcmp (name, _COMMENT) == 0 | |
610 | #endif | |
611 | || strncmp (name, ".stab", 5) == 0) | |
612 | { | |
613 | #ifdef COFF_PAGE_SIZE | |
614 | sec_flags |= SEC_DEBUGGING; | |
615 | #endif | |
616 | } | |
617 | #ifdef _LIB | |
618 | else if (strcmp (name, _LIB) == 0) | |
619 | ; | |
620 | #endif | |
621 | #ifdef _LIT | |
622 | else if (strcmp (name, _LIT) == 0) | |
623 | { | |
624 | sec_flags = SEC_LOAD | SEC_ALLOC | SEC_READONLY; | |
625 | } | |
626 | #endif | |
627 | else | |
628 | { | |
629 | sec_flags |= SEC_ALLOC | SEC_LOAD; | |
630 | } | |
631 | ||
632 | #ifdef STYP_LIT /* A29k readonly text/data section type */ | |
633 | if ((styp_flags & STYP_LIT) == STYP_LIT) | |
634 | { | |
635 | sec_flags = (SEC_LOAD | SEC_ALLOC | SEC_READONLY); | |
636 | } | |
637 | #endif /* STYP_LIT */ | |
638 | #ifdef STYP_OTHER_LOAD /* Other loaded sections */ | |
639 | if (styp_flags & STYP_OTHER_LOAD) | |
640 | { | |
641 | sec_flags = (SEC_LOAD | SEC_ALLOC); | |
642 | } | |
643 | #endif /* STYP_SDATA */ | |
644 | ||
41733515 ILT |
645 | #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE) |
646 | /* As a GNU extension, if the name begins with .gnu.linkonce, we | |
647 | only link a single copy of the section. This is used to support | |
648 | g++. g++ will emit each template expansion in its own section. | |
649 | The symbols will be defined as weak, so that multiple definitions | |
650 | are permitted. The GNU linker extension is to actually discard | |
651 | all but one of the sections. */ | |
652 | if (strncmp (name, ".gnu.linkonce", sizeof ".gnu.linkonce" - 1) == 0) | |
653 | sec_flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
654 | #endif | |
655 | ||
656 | return sec_flags; | |
657 | } | |
658 | ||
659 | #else /* COFF_WITH_PE */ | |
660 | ||
661 | /* The PE version; see above for the general comments. | |
662 | ||
663 | Since to set the SEC_LINK_ONCE and associated flags, we have to | |
664 | look at the symbol table anyway, we return the symbol table index | |
665 | of the symbol being used as the COMDAT symbol. This is admittedly | |
666 | ugly, but there's really nowhere else that we have access to the | |
667 | required information. FIXME: Is the COMDAT symbol index used for | |
668 | any purpose other than objdump? */ | |
669 | ||
670 | static flagword | |
671 | styp_to_sec_flags (abfd, hdr, name, section) | |
672 | bfd *abfd ATTRIBUTE_UNUSED; | |
673 | PTR hdr; | |
674 | const char *name; | |
675 | asection *section; | |
676 | { | |
677 | struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr; | |
678 | long styp_flags = internal_s->s_flags; | |
679 | flagword sec_flags = 0; | |
680 | ||
681 | if (styp_flags & STYP_DSECT) | |
682 | abort (); /* Don't know what to do */ | |
683 | #ifdef SEC_NEVER_LOAD | |
684 | if (styp_flags & STYP_NOLOAD) | |
685 | sec_flags |= SEC_NEVER_LOAD; | |
686 | #endif | |
687 | if (styp_flags & STYP_GROUP) | |
688 | abort (); /* Don't know what to do */ | |
689 | /* skip IMAGE_SCN_TYPE_NO_PAD */ | |
690 | if (styp_flags & STYP_COPY) | |
691 | abort (); /* Don't know what to do */ | |
692 | if (styp_flags & IMAGE_SCN_CNT_CODE) | |
693 | sec_flags |= SEC_CODE | SEC_ALLOC | SEC_LOAD; | |
694 | if (styp_flags & IMAGE_SCN_CNT_INITIALIZED_DATA) | |
695 | sec_flags |= SEC_DATA | SEC_ALLOC | SEC_LOAD; | |
696 | if (styp_flags & IMAGE_SCN_CNT_UNINITIALIZED_DATA) | |
697 | sec_flags |= SEC_ALLOC; | |
698 | if (styp_flags & IMAGE_SCN_LNK_OTHER) | |
699 | abort (); /* Don't know what to do */ | |
700 | if (styp_flags & IMAGE_SCN_LNK_INFO) | |
701 | { | |
702 | /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is | |
703 | defined. coff_compute_section_file_positions uses | |
704 | COFF_PAGE_SIZE to ensure that the low order bits of the | |
705 | section VMA and the file offset match. If we don't know | |
706 | COFF_PAGE_SIZE, we can't ensure the correct correspondence, | |
707 | and demand page loading of the file will fail. */ | |
708 | #ifdef COFF_PAGE_SIZE | |
709 | sec_flags |= SEC_DEBUGGING; | |
710 | #endif | |
711 | } | |
712 | if (styp_flags & STYP_OVER) | |
713 | abort (); /* Don't know what to do */ | |
252b5132 RH |
714 | if (styp_flags & IMAGE_SCN_LNK_REMOVE) |
715 | sec_flags |= SEC_EXCLUDE; | |
716 | ||
bd826630 ILT |
717 | if (styp_flags & IMAGE_SCN_MEM_SHARED) |
718 | sec_flags |= SEC_SHARED; | |
41733515 ILT |
719 | /* COMDAT: see below */ |
720 | if (styp_flags & IMAGE_SCN_MEM_DISCARDABLE) | |
721 | sec_flags |= SEC_DEBUGGING; | |
722 | if (styp_flags & IMAGE_SCN_MEM_NOT_CACHED) | |
723 | abort ();/* Don't know what to do */ | |
724 | if (styp_flags & IMAGE_SCN_MEM_NOT_PAGED) | |
725 | abort (); /* Don't know what to do */ | |
726 | ||
727 | /* We infer from the distinct read/write/execute bits the settings | |
728 | of some of the bfd flags; the actual values, should we need them, | |
729 | are also in pei_section_data (abfd, section)->pe_flags. */ | |
730 | ||
731 | if (styp_flags & IMAGE_SCN_MEM_EXECUTE) | |
732 | sec_flags |= SEC_CODE; /* Probably redundant */ | |
733 | /* IMAGE_SCN_MEM_READ is simply ignored, assuming it always to be true. */ | |
734 | if ((styp_flags & IMAGE_SCN_MEM_WRITE) == 0) | |
735 | sec_flags |= SEC_READONLY; | |
736 | ||
737 | /* COMDAT gets very special treatment. */ | |
252b5132 RH |
738 | if (styp_flags & IMAGE_SCN_LNK_COMDAT) |
739 | { | |
740 | sec_flags |= SEC_LINK_ONCE; | |
741 | ||
742 | /* Unfortunately, the PE format stores essential information in | |
743 | the symbol table, of all places. We need to extract that | |
744 | information now, so that objdump and the linker will know how | |
745 | to handle the section without worrying about the symbols. We | |
746 | can't call slurp_symtab, because the linker doesn't want the | |
747 | swapped symbols. */ | |
748 | ||
ec0ef80e DD |
749 | /* COMDAT sections are special. The first symbol is the section |
750 | symbol, which tells what kind of COMDAT section it is. The | |
41733515 | 751 | second symbol is the "comdat symbol" - the one with the |
ec0ef80e DD |
752 | unique name. GNU uses the section symbol for the unique |
753 | name; MS uses ".text" for every comdat section. Sigh. - DJ */ | |
754 | ||
41733515 ILT |
755 | /* This is not mirrored in sec_to_styp_flags(), but there |
756 | doesn't seem to be a need to, either, and it would at best be | |
757 | rather messy. */ | |
758 | ||
252b5132 RH |
759 | if (_bfd_coff_get_external_symbols (abfd)) |
760 | { | |
41733515 | 761 | bfd_byte *esymstart, *esym, *esymend; |
e5db213d | 762 | int seen_state = 0; |
86033394 | 763 | char *target_name = NULL; |
252b5132 | 764 | |
41733515 | 765 | esymstart = esym = (bfd_byte *) obj_coff_external_syms (abfd); |
6b3b007b | 766 | esymend = esym + obj_raw_syment_count (abfd) * bfd_coff_symesz (abfd); |
252b5132 RH |
767 | |
768 | while (esym < esymend) | |
769 | { | |
770 | struct internal_syment isym; | |
41733515 ILT |
771 | char buf[SYMNMLEN + 1]; |
772 | const char *symname; | |
252b5132 RH |
773 | |
774 | bfd_coff_swap_sym_in (abfd, (PTR) esym, (PTR) &isym); | |
775 | ||
776 | if (sizeof (internal_s->s_name) > SYMNMLEN) | |
777 | { | |
778 | /* This case implies that the matching symbol name | |
779 | will be in the string table. */ | |
780 | abort (); | |
781 | } | |
782 | ||
e5db213d | 783 | if (isym.n_scnum == section->target_index) |
252b5132 | 784 | { |
e5db213d ILT |
785 | /* According to the MSVC documentation, the first |
786 | TWO entries with the section # are both of | |
787 | interest to us. The first one is the "section | |
41733515 | 788 | symbol" (section name). The second is the comdat |
e5db213d ILT |
789 | symbol name. Here, we've found the first |
790 | qualifying entry; we distinguish it from the | |
791 | second with a state flag. | |
252b5132 | 792 | |
e5db213d ILT |
793 | In the case of gas-generated (at least until that |
794 | is fixed) .o files, it isn't necessarily the | |
795 | second one. It may be some other later symbol. | |
41733515 | 796 | |
e5db213d ILT |
797 | Since gas also doesn't follow MS conventions and |
798 | emits the section similar to .text$<name>, where | |
799 | <something> is the name we're looking for, we | |
800 | distinguish the two as follows: | |
41733515 | 801 | |
e5db213d ILT |
802 | If the section name is simply a section name (no |
803 | $) we presume it's MS-generated, and look at | |
804 | precisely the second symbol for the comdat name. | |
805 | If the section name has a $, we assume it's | |
806 | gas-generated, and look for <something> (whatever | |
807 | follows the $) as the comdat symbol. */ | |
252b5132 | 808 | |
e5db213d ILT |
809 | /* All 3 branches use this */ |
810 | symname = _bfd_coff_internal_syment_name (abfd, &isym, buf); | |
252b5132 | 811 | |
e5db213d ILT |
812 | if (symname == NULL) |
813 | abort (); | |
ec0ef80e | 814 | |
e5db213d ILT |
815 | switch (seen_state) |
816 | { | |
817 | case 0: | |
818 | { | |
819 | /* The first time we've seen the symbol. */ | |
820 | union internal_auxent aux; | |
821 | ||
822 | seen_state = 1; | |
823 | ||
824 | /* If it isn't the stuff we're expecting, die; | |
825 | The MS documentation is vague, but it | |
826 | appears that the second entry serves BOTH | |
827 | as the comdat symbol and the defining | |
828 | symbol record (either C_STAT or C_EXT, | |
829 | possibly with an aux entry with debug | |
830 | information if it's a function.) It | |
831 | appears the only way to find the second one | |
832 | is to count. (On Intel, they appear to be | |
833 | adjacent, but on Alpha, they have been | |
834 | found separated.) | |
835 | ||
836 | Here, we think we've found the first one, | |
837 | but there's some checking we can do to be | |
838 | sure. */ | |
839 | ||
840 | if (! (isym.n_sclass == C_STAT | |
841 | && isym.n_type == T_NULL | |
842 | && isym.n_value == 0)) | |
843 | abort (); | |
844 | ||
845 | /* FIXME LATER: MSVC generates section names | |
846 | like .text for comdats. Gas generates | |
847 | names like .text$foo__Fv (in the case of a | |
848 | function). See comment above for more. */ | |
849 | ||
850 | if (strcmp (name, symname) != 0) | |
851 | abort (); | |
852 | ||
853 | /* This is the section symbol. */ | |
854 | ||
6b3b007b | 855 | bfd_coff_swap_aux_in (abfd, (PTR) (esym + bfd_coff_symesz (abfd)), |
e5db213d ILT |
856 | isym.n_type, isym.n_sclass, |
857 | 0, isym.n_numaux, (PTR) &aux); | |
858 | ||
859 | target_name = strchr (name, '$'); | |
860 | if (target_name != NULL) | |
861 | { | |
862 | /* Gas mode. */ | |
863 | seen_state = 2; | |
864 | /* Skip the `$'. */ | |
865 | target_name += 1; | |
866 | } | |
867 | ||
868 | /* FIXME: Microsoft uses NODUPLICATES and | |
869 | ASSOCIATIVE, but gnu uses ANY and | |
870 | SAME_SIZE. Unfortunately, gnu doesn't do | |
871 | the comdat symbols right. So, until we can | |
872 | fix it to do the right thing, we are | |
873 | temporarily disabling comdats for the MS | |
874 | types (they're used in DLLs and C++, but we | |
875 | don't support *their* C++ libraries anyway | |
876 | - DJ. */ | |
877 | ||
878 | /* Cygwin does not follow the MS style, and | |
879 | uses ANY and SAME_SIZE where NODUPLICATES | |
880 | and ASSOCIATIVE should be used. For | |
881 | Interix, we just do the right thing up | |
882 | front. */ | |
883 | ||
884 | switch (aux.x_scn.x_comdat) | |
885 | { | |
886 | case IMAGE_COMDAT_SELECT_NODUPLICATES: | |
887 | #ifdef STRICT_PE_FORMAT | |
888 | sec_flags |= SEC_LINK_DUPLICATES_ONE_ONLY; | |
ec0ef80e | 889 | #else |
e5db213d | 890 | sec_flags &= ~SEC_LINK_ONCE; |
ec0ef80e | 891 | #endif |
e5db213d | 892 | break; |
252b5132 | 893 | |
e5db213d ILT |
894 | case IMAGE_COMDAT_SELECT_ANY: |
895 | sec_flags |= SEC_LINK_DUPLICATES_DISCARD; | |
896 | break; | |
252b5132 | 897 | |
e5db213d ILT |
898 | case IMAGE_COMDAT_SELECT_SAME_SIZE: |
899 | sec_flags |= SEC_LINK_DUPLICATES_SAME_SIZE; | |
900 | break; | |
252b5132 | 901 | |
e5db213d ILT |
902 | case IMAGE_COMDAT_SELECT_EXACT_MATCH: |
903 | /* Not yet fully implemented ??? */ | |
904 | sec_flags |= SEC_LINK_DUPLICATES_SAME_CONTENTS; | |
905 | break; | |
252b5132 | 906 | |
e5db213d ILT |
907 | /* debug$S gets this case; other |
908 | implications ??? */ | |
909 | ||
910 | /* There may be no symbol... we'll search | |
911 | the whole table... Is this the right | |
912 | place to play this game? Or should we do | |
913 | it when reading it in. */ | |
914 | case IMAGE_COMDAT_SELECT_ASSOCIATIVE: | |
0717ebb7 | 915 | #ifdef STRICT_PE_FORMAT |
e5db213d ILT |
916 | /* FIXME: This is not currently implemented. */ |
917 | sec_flags |= SEC_LINK_DUPLICATES_DISCARD; | |
ec0ef80e | 918 | #else |
e5db213d | 919 | sec_flags &= ~SEC_LINK_ONCE; |
ec0ef80e | 920 | #endif |
e5db213d ILT |
921 | break; |
922 | ||
923 | default: /* 0 means "no symbol" */ | |
924 | /* debug$F gets this case; other | |
925 | implications ??? */ | |
926 | sec_flags |= SEC_LINK_DUPLICATES_DISCARD; | |
927 | break; | |
928 | } | |
929 | } | |
930 | break; | |
41733515 | 931 | |
e5db213d ILT |
932 | case 2: |
933 | /* Gas mode: the first matching on partial name. */ | |
252b5132 | 934 | |
e5db213d ILT |
935 | #ifndef TARGET_UNDERSCORE |
936 | #define TARGET_UNDERSCORE 0 | |
937 | #endif | |
938 | /* Is this the name we're looking for? */ | |
939 | if (strcmp (target_name, | |
940 | symname + (TARGET_UNDERSCORE ? 1 : 0)) != 0) | |
941 | { | |
942 | /* Not the name we're looking for */ | |
6b3b007b | 943 | esym += (isym.n_numaux + 1) * bfd_coff_symesz (abfd); |
e5db213d ILT |
944 | continue; |
945 | } | |
946 | /* Fall through. */ | |
947 | case 1: | |
948 | /* MSVC mode: the lexically second symbol (or | |
949 | drop through from the above). */ | |
950 | { | |
951 | char *newname; | |
952 | ||
953 | /* This must the the second symbol with the | |
954 | section #. It is the actual symbol name. | |
955 | Intel puts the two adjacent, but Alpha (at | |
956 | least) spreads them out. */ | |
957 | ||
958 | section->comdat = | |
959 | bfd_alloc (abfd, sizeof (struct bfd_comdat_info)); | |
960 | if (section->comdat == NULL) | |
961 | abort (); | |
962 | section->comdat->symbol = | |
6b3b007b | 963 | (esym - esymstart) / bfd_coff_symesz (abfd); |
e5db213d ILT |
964 | |
965 | newname = bfd_alloc (abfd, strlen (symname) + 1); | |
966 | if (newname == NULL) | |
967 | abort (); | |
968 | ||
969 | strcpy (newname, symname); | |
970 | section->comdat->name = newname; | |
971 | ||
972 | } | |
973 | ||
974 | goto breakloop; | |
252b5132 RH |
975 | } |
976 | } | |
977 | ||
6b3b007b | 978 | esym += (isym.n_numaux + 1) * bfd_coff_symesz (abfd); |
252b5132 | 979 | } |
e5db213d | 980 | breakloop: |
252b5132 RH |
981 | } |
982 | } | |
252b5132 | 983 | |
242eabea ILT |
984 | #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE) |
985 | /* As a GNU extension, if the name begins with .gnu.linkonce, we | |
986 | only link a single copy of the section. This is used to support | |
987 | g++. g++ will emit each template expansion in its own section. | |
988 | The symbols will be defined as weak, so that multiple definitions | |
989 | are permitted. The GNU linker extension is to actually discard | |
990 | all but one of the sections. */ | |
991 | if (strncmp (name, ".gnu.linkonce", sizeof ".gnu.linkonce" - 1) == 0) | |
992 | sec_flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
993 | #endif | |
994 | ||
41733515 | 995 | return sec_flags; |
252b5132 RH |
996 | } |
997 | ||
41733515 ILT |
998 | #endif /* COFF_WITH_PE */ |
999 | ||
252b5132 RH |
1000 | #define get_index(symbol) ((symbol)->udata.i) |
1001 | ||
1002 | /* | |
1003 | INTERNAL_DEFINITION | |
1004 | bfd_coff_backend_data | |
1005 | ||
1006 | CODE_FRAGMENT | |
1007 | ||
5d54c628 ILT |
1008 | .{* COFF symbol classifications. *} |
1009 | . | |
1010 | .enum coff_symbol_classification | |
1011 | .{ | |
1012 | . {* Global symbol. *} | |
1013 | . COFF_SYMBOL_GLOBAL, | |
1014 | . {* Common symbol. *} | |
1015 | . COFF_SYMBOL_COMMON, | |
1016 | . {* Undefined symbol. *} | |
1017 | . COFF_SYMBOL_UNDEFINED, | |
1018 | . {* Local symbol. *} | |
1019 | . COFF_SYMBOL_LOCAL, | |
1020 | . {* PE section symbol. *} | |
1021 | . COFF_SYMBOL_PE_SECTION | |
1022 | .}; | |
1023 | . | |
252b5132 RH |
1024 | Special entry points for gdb to swap in coff symbol table parts: |
1025 | .typedef struct | |
1026 | .{ | |
1027 | . void (*_bfd_coff_swap_aux_in) PARAMS (( | |
1028 | . bfd *abfd, | |
1029 | . PTR ext, | |
1030 | . int type, | |
1031 | . int class, | |
1032 | . int indaux, | |
1033 | . int numaux, | |
1034 | . PTR in)); | |
1035 | . | |
1036 | . void (*_bfd_coff_swap_sym_in) PARAMS (( | |
1037 | . bfd *abfd , | |
1038 | . PTR ext, | |
1039 | . PTR in)); | |
1040 | . | |
1041 | . void (*_bfd_coff_swap_lineno_in) PARAMS (( | |
1042 | . bfd *abfd, | |
1043 | . PTR ext, | |
1044 | . PTR in)); | |
1045 | . | |
1046 | ||
1047 | Special entry points for gas to swap out coff parts: | |
1048 | ||
1049 | . unsigned int (*_bfd_coff_swap_aux_out) PARAMS (( | |
1050 | . bfd *abfd, | |
1051 | . PTR in, | |
1052 | . int type, | |
1053 | . int class, | |
1054 | . int indaux, | |
1055 | . int numaux, | |
1056 | . PTR ext)); | |
1057 | . | |
1058 | . unsigned int (*_bfd_coff_swap_sym_out) PARAMS (( | |
1059 | . bfd *abfd, | |
1060 | . PTR in, | |
1061 | . PTR ext)); | |
1062 | . | |
1063 | . unsigned int (*_bfd_coff_swap_lineno_out) PARAMS (( | |
1064 | . bfd *abfd, | |
1065 | . PTR in, | |
1066 | . PTR ext)); | |
1067 | . | |
1068 | . unsigned int (*_bfd_coff_swap_reloc_out) PARAMS (( | |
1069 | . bfd *abfd, | |
1070 | . PTR src, | |
1071 | . PTR dst)); | |
1072 | . | |
1073 | . unsigned int (*_bfd_coff_swap_filehdr_out) PARAMS (( | |
1074 | . bfd *abfd, | |
1075 | . PTR in, | |
1076 | . PTR out)); | |
1077 | . | |
1078 | . unsigned int (*_bfd_coff_swap_aouthdr_out) PARAMS (( | |
1079 | . bfd *abfd, | |
1080 | . PTR in, | |
1081 | . PTR out)); | |
1082 | . | |
1083 | . unsigned int (*_bfd_coff_swap_scnhdr_out) PARAMS (( | |
1084 | . bfd *abfd, | |
1085 | . PTR in, | |
1086 | . PTR out)); | |
1087 | . | |
1088 | ||
1089 | Special entry points for generic COFF routines to call target | |
1090 | dependent COFF routines: | |
1091 | ||
1092 | . unsigned int _bfd_filhsz; | |
1093 | . unsigned int _bfd_aoutsz; | |
1094 | . unsigned int _bfd_scnhsz; | |
1095 | . unsigned int _bfd_symesz; | |
1096 | . unsigned int _bfd_auxesz; | |
1097 | . unsigned int _bfd_relsz; | |
1098 | . unsigned int _bfd_linesz; | |
692b7d62 | 1099 | . unsigned int _bfd_filnmlen; |
252b5132 RH |
1100 | . boolean _bfd_coff_long_filenames; |
1101 | . boolean _bfd_coff_long_section_names; | |
1102 | . unsigned int _bfd_coff_default_section_alignment_power; | |
1103 | . void (*_bfd_coff_swap_filehdr_in) PARAMS (( | |
1104 | . bfd *abfd, | |
1105 | . PTR ext, | |
1106 | . PTR in)); | |
1107 | . void (*_bfd_coff_swap_aouthdr_in) PARAMS (( | |
1108 | . bfd *abfd, | |
1109 | . PTR ext, | |
1110 | . PTR in)); | |
1111 | . void (*_bfd_coff_swap_scnhdr_in) PARAMS (( | |
1112 | . bfd *abfd, | |
1113 | . PTR ext, | |
1114 | . PTR in)); | |
1115 | . void (*_bfd_coff_swap_reloc_in) PARAMS (( | |
1116 | . bfd *abfd, | |
1117 | . PTR ext, | |
1118 | . PTR in)); | |
1119 | . boolean (*_bfd_coff_bad_format_hook) PARAMS (( | |
1120 | . bfd *abfd, | |
1121 | . PTR internal_filehdr)); | |
1122 | . boolean (*_bfd_coff_set_arch_mach_hook) PARAMS (( | |
1123 | . bfd *abfd, | |
1124 | . PTR internal_filehdr)); | |
1125 | . PTR (*_bfd_coff_mkobject_hook) PARAMS (( | |
1126 | . bfd *abfd, | |
1127 | . PTR internal_filehdr, | |
1128 | . PTR internal_aouthdr)); | |
1129 | . flagword (*_bfd_styp_to_sec_flags_hook) PARAMS (( | |
1130 | . bfd *abfd, | |
1131 | . PTR internal_scnhdr, | |
41733515 ILT |
1132 | . const char *name, |
1133 | . asection *section)); | |
252b5132 RH |
1134 | . void (*_bfd_set_alignment_hook) PARAMS (( |
1135 | . bfd *abfd, | |
1136 | . asection *sec, | |
1137 | . PTR internal_scnhdr)); | |
1138 | . boolean (*_bfd_coff_slurp_symbol_table) PARAMS (( | |
1139 | . bfd *abfd)); | |
1140 | . boolean (*_bfd_coff_symname_in_debug) PARAMS (( | |
1141 | . bfd *abfd, | |
1142 | . struct internal_syment *sym)); | |
1143 | . boolean (*_bfd_coff_pointerize_aux_hook) PARAMS (( | |
1144 | . bfd *abfd, | |
1145 | . combined_entry_type *table_base, | |
1146 | . combined_entry_type *symbol, | |
1147 | . unsigned int indaux, | |
1148 | . combined_entry_type *aux)); | |
1149 | . boolean (*_bfd_coff_print_aux) PARAMS (( | |
1150 | . bfd *abfd, | |
1151 | . FILE *file, | |
1152 | . combined_entry_type *table_base, | |
1153 | . combined_entry_type *symbol, | |
1154 | . combined_entry_type *aux, | |
1155 | . unsigned int indaux)); | |
1156 | . void (*_bfd_coff_reloc16_extra_cases) PARAMS (( | |
1157 | . bfd *abfd, | |
1158 | . struct bfd_link_info *link_info, | |
1159 | . struct bfd_link_order *link_order, | |
1160 | . arelent *reloc, | |
1161 | . bfd_byte *data, | |
1162 | . unsigned int *src_ptr, | |
1163 | . unsigned int *dst_ptr)); | |
1164 | . int (*_bfd_coff_reloc16_estimate) PARAMS (( | |
1165 | . bfd *abfd, | |
1166 | . asection *input_section, | |
1167 | . arelent *r, | |
1168 | . unsigned int shrink, | |
1169 | . struct bfd_link_info *link_info)); | |
5d54c628 | 1170 | . enum coff_symbol_classification (*_bfd_coff_classify_symbol) PARAMS (( |
252b5132 RH |
1171 | . bfd *abfd, |
1172 | . struct internal_syment *)); | |
1173 | . boolean (*_bfd_coff_compute_section_file_positions) PARAMS (( | |
1174 | . bfd *abfd)); | |
1175 | . boolean (*_bfd_coff_start_final_link) PARAMS (( | |
1176 | . bfd *output_bfd, | |
1177 | . struct bfd_link_info *info)); | |
1178 | . boolean (*_bfd_coff_relocate_section) PARAMS (( | |
1179 | . bfd *output_bfd, | |
1180 | . struct bfd_link_info *info, | |
1181 | . bfd *input_bfd, | |
1182 | . asection *input_section, | |
1183 | . bfd_byte *contents, | |
1184 | . struct internal_reloc *relocs, | |
1185 | . struct internal_syment *syms, | |
1186 | . asection **sections)); | |
1187 | . reloc_howto_type *(*_bfd_coff_rtype_to_howto) PARAMS (( | |
1188 | . bfd *abfd, | |
1189 | . asection *sec, | |
1190 | . struct internal_reloc *rel, | |
1191 | . struct coff_link_hash_entry *h, | |
1192 | . struct internal_syment *sym, | |
1193 | . bfd_vma *addendp)); | |
1194 | . boolean (*_bfd_coff_adjust_symndx) PARAMS (( | |
1195 | . bfd *obfd, | |
1196 | . struct bfd_link_info *info, | |
1197 | . bfd *ibfd, | |
1198 | . asection *sec, | |
1199 | . struct internal_reloc *reloc, | |
1200 | . boolean *adjustedp)); | |
1201 | . boolean (*_bfd_coff_link_add_one_symbol) PARAMS (( | |
1202 | . struct bfd_link_info *info, | |
1203 | . bfd *abfd, | |
1204 | . const char *name, | |
1205 | . flagword flags, | |
1206 | . asection *section, | |
1207 | . bfd_vma value, | |
1208 | . const char *string, | |
1209 | . boolean copy, | |
1210 | . boolean collect, | |
1211 | . struct bfd_link_hash_entry **hashp)); | |
1212 | . | |
1213 | . boolean (*_bfd_coff_link_output_has_begun) PARAMS (( | |
1214 | . bfd * abfd, | |
1215 | . struct coff_final_link_info * pfinfo)); | |
1216 | . boolean (*_bfd_coff_final_link_postscript) PARAMS (( | |
1217 | . bfd * abfd, | |
1218 | . struct coff_final_link_info * pfinfo)); | |
1219 | . | |
1220 | .} bfd_coff_backend_data; | |
1221 | . | |
1222 | .#define coff_backend_info(abfd) ((bfd_coff_backend_data *) (abfd)->xvec->backend_data) | |
1223 | . | |
1224 | .#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \ | |
1225 | . ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i)) | |
1226 | . | |
1227 | .#define bfd_coff_swap_sym_in(a,e,i) \ | |
1228 | . ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i)) | |
1229 | . | |
1230 | .#define bfd_coff_swap_lineno_in(a,e,i) \ | |
1231 | . ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i)) | |
1232 | . | |
1233 | .#define bfd_coff_swap_reloc_out(abfd, i, o) \ | |
1234 | . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o)) | |
1235 | . | |
1236 | .#define bfd_coff_swap_lineno_out(abfd, i, o) \ | |
1237 | . ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o)) | |
1238 | . | |
1239 | .#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \ | |
1240 | . ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o)) | |
1241 | . | |
1242 | .#define bfd_coff_swap_sym_out(abfd, i,o) \ | |
1243 | . ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o)) | |
1244 | . | |
1245 | .#define bfd_coff_swap_scnhdr_out(abfd, i,o) \ | |
1246 | . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o)) | |
1247 | . | |
1248 | .#define bfd_coff_swap_filehdr_out(abfd, i,o) \ | |
1249 | . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o)) | |
1250 | . | |
1251 | .#define bfd_coff_swap_aouthdr_out(abfd, i,o) \ | |
1252 | . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o)) | |
1253 | . | |
1254 | .#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz) | |
1255 | .#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz) | |
1256 | .#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz) | |
1257 | .#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz) | |
1258 | .#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz) | |
1259 | .#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz) | |
1260 | .#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz) | |
692b7d62 | 1261 | .#define bfd_coff_filnmlen(abfd) (coff_backend_info (abfd)->_bfd_filnmlen) |
252b5132 RH |
1262 | .#define bfd_coff_long_filenames(abfd) (coff_backend_info (abfd)->_bfd_coff_long_filenames) |
1263 | .#define bfd_coff_long_section_names(abfd) \ | |
1264 | . (coff_backend_info (abfd)->_bfd_coff_long_section_names) | |
1265 | .#define bfd_coff_default_section_alignment_power(abfd) \ | |
1266 | . (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power) | |
1267 | .#define bfd_coff_swap_filehdr_in(abfd, i,o) \ | |
1268 | . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o)) | |
1269 | . | |
1270 | .#define bfd_coff_swap_aouthdr_in(abfd, i,o) \ | |
1271 | . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o)) | |
1272 | . | |
1273 | .#define bfd_coff_swap_scnhdr_in(abfd, i,o) \ | |
1274 | . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o)) | |
1275 | . | |
1276 | .#define bfd_coff_swap_reloc_in(abfd, i, o) \ | |
1277 | . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o)) | |
1278 | . | |
1279 | .#define bfd_coff_bad_format_hook(abfd, filehdr) \ | |
1280 | . ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr)) | |
1281 | . | |
1282 | .#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\ | |
1283 | . ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr)) | |
1284 | .#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\ | |
1285 | . ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook) (abfd, filehdr, aouthdr)) | |
1286 | . | |
41733515 ILT |
1287 | .#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section)\ |
1288 | . ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\ | |
1289 | . (abfd, scnhdr, name, section)) | |
252b5132 RH |
1290 | . |
1291 | .#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\ | |
1292 | . ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr)) | |
1293 | . | |
1294 | .#define bfd_coff_slurp_symbol_table(abfd)\ | |
1295 | . ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd)) | |
1296 | . | |
1297 | .#define bfd_coff_symname_in_debug(abfd, sym)\ | |
1298 | . ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym)) | |
1299 | . | |
1300 | .#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\ | |
1301 | . ((coff_backend_info (abfd)->_bfd_coff_print_aux)\ | |
1302 | . (abfd, file, base, symbol, aux, indaux)) | |
1303 | . | |
1304 | .#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)\ | |
1305 | . ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\ | |
1306 | . (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)) | |
1307 | . | |
1308 | .#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\ | |
1309 | . ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\ | |
1310 | . (abfd, section, reloc, shrink, link_info)) | |
1311 | . | |
5d54c628 ILT |
1312 | .#define bfd_coff_classify_symbol(abfd, sym)\ |
1313 | . ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\ | |
252b5132 RH |
1314 | . (abfd, sym)) |
1315 | . | |
1316 | .#define bfd_coff_compute_section_file_positions(abfd)\ | |
1317 | . ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\ | |
1318 | . (abfd)) | |
1319 | . | |
1320 | .#define bfd_coff_start_final_link(obfd, info)\ | |
1321 | . ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\ | |
1322 | . (obfd, info)) | |
1323 | .#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\ | |
1324 | . ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\ | |
1325 | . (obfd, info, ibfd, o, con, rel, isyms, secs)) | |
1326 | .#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\ | |
1327 | . ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\ | |
1328 | . (abfd, sec, rel, h, sym, addendp)) | |
1329 | .#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\ | |
1330 | . ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\ | |
1331 | . (obfd, info, ibfd, sec, rel, adjustedp)) | |
1332 | .#define bfd_coff_link_add_one_symbol(info,abfd,name,flags,section,value,string,cp,coll,hashp)\ | |
1333 | . ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\ | |
1334 | . (info, abfd, name, flags, section, value, string, cp, coll, hashp)) | |
1335 | . | |
1336 | .#define bfd_coff_link_output_has_begun(a,p) \ | |
1337 | . ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a,p)) | |
1338 | .#define bfd_coff_final_link_postscript(a,p) \ | |
1339 | . ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a,p)) | |
1340 | . | |
1341 | */ | |
1342 | ||
1343 | /* See whether the magic number matches. */ | |
1344 | ||
1345 | static boolean | |
1346 | coff_bad_format_hook (abfd, filehdr) | |
5f771d47 | 1347 | bfd * abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
1348 | PTR filehdr; |
1349 | { | |
1350 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
1351 | ||
1352 | if (BADMAG (*internal_f)) | |
1353 | return false; | |
1354 | ||
1355 | /* if the optional header is NULL or not the correct size then | |
1356 | quit; the only difference I can see between m88k dgux headers (MC88DMAGIC) | |
1357 | and Intel 960 readwrite headers (I960WRMAGIC) is that the | |
1358 | optional header is of a different size. | |
1359 | ||
1360 | But the mips keeps extra stuff in it's opthdr, so dont check | |
1361 | when doing that | |
1362 | */ | |
1363 | ||
1364 | #if defined(M88) || defined(I960) | |
6b3b007b | 1365 | if (internal_f->f_opthdr != 0 && bfd_coff_aoutsz (abfd) != internal_f->f_opthdr) |
252b5132 RH |
1366 | return false; |
1367 | #endif | |
1368 | ||
1369 | return true; | |
1370 | } | |
1371 | ||
5dccc1dd ILT |
1372 | /* Check whether this section uses an alignment other than the |
1373 | default. */ | |
1374 | ||
1375 | static void | |
1376 | coff_set_custom_section_alignment (abfd, section, alignment_table, table_size) | |
1377 | bfd *abfd ATTRIBUTE_UNUSED; | |
1378 | asection *section; | |
1379 | const struct coff_section_alignment_entry *alignment_table; | |
1380 | const unsigned int table_size; | |
1381 | { | |
1382 | const unsigned int default_alignment = COFF_DEFAULT_SECTION_ALIGNMENT_POWER; | |
1383 | unsigned int i; | |
1384 | ||
1385 | for (i = 0; i < table_size; ++i) | |
1386 | { | |
1387 | const char *secname = bfd_get_section_name (abfd, section); | |
1388 | if (alignment_table[i].comparison_length == (unsigned int) -1 | |
1389 | ? strcmp (alignment_table[i].name, secname) == 0 | |
1390 | : strncmp (alignment_table[i].name, secname, | |
1391 | alignment_table[i].comparison_length) == 0) | |
1392 | break; | |
1393 | } | |
1394 | if (i >= table_size) | |
1395 | return; | |
1396 | ||
1397 | if (alignment_table[i].default_alignment_min != COFF_ALIGNMENT_FIELD_EMPTY | |
1398 | && default_alignment < alignment_table[i].default_alignment_min) | |
1399 | return; | |
1400 | ||
1401 | if (alignment_table[i].default_alignment_max != COFF_ALIGNMENT_FIELD_EMPTY | |
1402 | && default_alignment > alignment_table[i].default_alignment_max) | |
1403 | return; | |
1404 | ||
1405 | section->alignment_power = alignment_table[i].alignment_power; | |
1406 | } | |
1407 | ||
1408 | /* Custom section alignment records. */ | |
1409 | ||
1410 | static const struct coff_section_alignment_entry | |
1411 | coff_section_alignment_table[] = | |
1412 | { | |
1413 | #ifdef COFF_SECTION_ALIGNMENT_ENTRIES | |
1414 | COFF_SECTION_ALIGNMENT_ENTRIES, | |
1415 | #endif | |
1416 | /* There must not be any gaps between .stabstr sections. */ | |
1417 | { COFF_SECTION_NAME_PARTIAL_MATCH (".stabstr"), | |
1418 | 1, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, | |
1419 | /* The .stab section must be aligned to 2**2 at most, to avoid gaps. */ | |
1420 | { COFF_SECTION_NAME_PARTIAL_MATCH (".stab"), | |
1421 | 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, | |
1422 | /* Similarly for the .ctors and .dtors sections. */ | |
1423 | { COFF_SECTION_NAME_EXACT_MATCH (".ctors"), | |
1424 | 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, | |
1425 | { COFF_SECTION_NAME_EXACT_MATCH (".dtors"), | |
1426 | 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 } | |
1427 | }; | |
1428 | ||
1429 | static const unsigned int coff_section_alignment_table_size = | |
1430 | sizeof coff_section_alignment_table / sizeof coff_section_alignment_table[0]; | |
1431 | ||
1432 | /* Initialize a section structure with information peculiar to this | |
1433 | particular implementation of COFF. */ | |
252b5132 RH |
1434 | |
1435 | static boolean | |
1436 | coff_new_section_hook (abfd, section) | |
5dccc1dd ILT |
1437 | bfd *abfd; |
1438 | asection *section; | |
252b5132 RH |
1439 | { |
1440 | combined_entry_type *native; | |
1441 | ||
1442 | section->alignment_power = COFF_DEFAULT_SECTION_ALIGNMENT_POWER; | |
1443 | ||
1444 | #ifdef RS6000COFF_C | |
1445 | if (xcoff_data (abfd)->text_align_power != 0 | |
1446 | && strcmp (bfd_get_section_name (abfd, section), ".text") == 0) | |
1447 | section->alignment_power = xcoff_data (abfd)->text_align_power; | |
1448 | if (xcoff_data (abfd)->data_align_power != 0 | |
1449 | && strcmp (bfd_get_section_name (abfd, section), ".data") == 0) | |
1450 | section->alignment_power = xcoff_data (abfd)->data_align_power; | |
1451 | #endif | |
1452 | ||
1453 | /* Allocate aux records for section symbols, to store size and | |
1454 | related info. | |
1455 | ||
1456 | @@ The 10 is a guess at a plausible maximum number of aux entries | |
1457 | (but shouldn't be a constant). */ | |
1458 | native = ((combined_entry_type *) | |
1459 | bfd_zalloc (abfd, sizeof (combined_entry_type) * 10)); | |
1460 | if (native == NULL) | |
1461 | return false; | |
1462 | ||
1463 | /* We don't need to set up n_name, n_value, or n_scnum in the native | |
1464 | symbol information, since they'll be overriden by the BFD symbol | |
1465 | anyhow. However, we do need to set the type and storage class, | |
1466 | in case this symbol winds up getting written out. The value 0 | |
1467 | for n_numaux is already correct. */ | |
1468 | ||
1469 | native->u.syment.n_type = T_NULL; | |
1470 | native->u.syment.n_sclass = C_STAT; | |
1471 | ||
1472 | coffsymbol (section->symbol)->native = native; | |
1473 | ||
5dccc1dd ILT |
1474 | coff_set_custom_section_alignment (abfd, section, |
1475 | coff_section_alignment_table, | |
1476 | coff_section_alignment_table_size); | |
252b5132 RH |
1477 | |
1478 | return true; | |
1479 | } | |
1480 | ||
1481 | #ifdef COFF_ALIGN_IN_SECTION_HEADER | |
1482 | ||
1483 | /* Set the alignment of a BFD section. */ | |
1484 | ||
1485 | static void coff_set_alignment_hook PARAMS ((bfd *, asection *, PTR)); | |
1486 | ||
1487 | static void | |
1488 | coff_set_alignment_hook (abfd, section, scnhdr) | |
5f771d47 | 1489 | bfd * abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
1490 | asection * section; |
1491 | PTR scnhdr; | |
1492 | { | |
1493 | struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr; | |
1494 | unsigned int i; | |
1495 | ||
1496 | #ifdef I960 | |
1497 | /* Extract ALIGN from 2**ALIGN stored in section header */ | |
1498 | for (i = 0; i < 32; i++) | |
1499 | if ((1 << i) >= hdr->s_align) | |
1500 | break; | |
1501 | #endif | |
1502 | #ifdef TIC80COFF | |
1503 | /* TI tools hijack bits 8-11 for the alignment */ | |
1504 | i = (hdr->s_flags >> 8) & 0xF ; | |
1505 | #endif | |
1506 | section->alignment_power = i; | |
1507 | } | |
1508 | ||
1509 | #else /* ! COFF_ALIGN_IN_SECTION_HEADER */ | |
1510 | #ifdef COFF_WITH_PE | |
1511 | ||
1512 | /* a couple of macros to help setting the alignment power field */ | |
1513 | #define ALIGN_SET(field,x,y) \ | |
1514 | if (((field) & IMAGE_SCN_ALIGN_64BYTES) == x )\ | |
1515 | {\ | |
1516 | section->alignment_power = y;\ | |
1517 | } | |
1518 | ||
1519 | #define ELIFALIGN_SET(field,x,y) \ | |
1520 | else if (( (field) & IMAGE_SCN_ALIGN_64BYTES) == x ) \ | |
1521 | {\ | |
1522 | section->alignment_power = y;\ | |
1523 | } | |
1524 | ||
1525 | static void coff_set_alignment_hook PARAMS ((bfd *, asection *, PTR)); | |
1526 | ||
1527 | static void | |
1528 | coff_set_alignment_hook (abfd, section, scnhdr) | |
5f771d47 | 1529 | bfd * abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
1530 | asection * section; |
1531 | PTR scnhdr; | |
1532 | { | |
1533 | struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr; | |
1534 | ||
1535 | ALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_64BYTES, 6) | |
1536 | ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_32BYTES, 5) | |
1537 | ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_16BYTES, 4) | |
1538 | ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_8BYTES, 3) | |
1539 | ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_4BYTES, 2) | |
1540 | ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_2BYTES, 1) | |
1541 | ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_1BYTES, 0) | |
1542 | ||
252b5132 | 1543 | /* In a PE image file, the s_paddr field holds the virtual size of a |
8d3ad4e1 ILT |
1544 | section, while the s_size field holds the raw size. We also keep |
1545 | the original section flag value, since not every bit can be | |
1546 | mapped onto a generic BFD section bit. */ | |
1547 | if (coff_section_data (abfd, section) == NULL) | |
252b5132 | 1548 | { |
8d3ad4e1 ILT |
1549 | section->used_by_bfd = |
1550 | (PTR) bfd_zalloc (abfd, sizeof (struct coff_section_tdata)); | |
1551 | if (section->used_by_bfd == NULL) | |
252b5132 | 1552 | { |
8d3ad4e1 ILT |
1553 | /* FIXME: Return error. */ |
1554 | abort (); | |
252b5132 | 1555 | } |
8d3ad4e1 ILT |
1556 | } |
1557 | if (pei_section_data (abfd, section) == NULL) | |
1558 | { | |
1559 | coff_section_data (abfd, section)->tdata = | |
1560 | (PTR) bfd_zalloc (abfd, sizeof (struct pei_section_tdata)); | |
1561 | if (coff_section_data (abfd, section)->tdata == NULL) | |
252b5132 | 1562 | { |
8d3ad4e1 ILT |
1563 | /* FIXME: Return error. */ |
1564 | abort (); | |
252b5132 | 1565 | } |
252b5132 | 1566 | } |
8d3ad4e1 ILT |
1567 | pei_section_data (abfd, section)->virt_size = hdr->s_paddr; |
1568 | pei_section_data (abfd, section)->pe_flags = hdr->s_flags; | |
252b5132 | 1569 | |
9d8cefa9 | 1570 | section->lma = hdr->s_vaddr; |
252b5132 RH |
1571 | } |
1572 | #undef ALIGN_SET | |
1573 | #undef ELIFALIGN_SET | |
1574 | ||
1575 | #else /* ! COFF_WITH_PE */ | |
1576 | #ifdef RS6000COFF_C | |
1577 | ||
1578 | /* We grossly abuse this function to handle XCOFF overflow headers. | |
1579 | When we see one, we correct the reloc and line number counts in the | |
1580 | real header, and remove the section we just created. */ | |
1581 | ||
1582 | static void coff_set_alignment_hook PARAMS ((bfd *, asection *, PTR)); | |
1583 | ||
1584 | static void | |
1585 | coff_set_alignment_hook (abfd, section, scnhdr) | |
1586 | bfd *abfd; | |
1587 | asection *section; | |
1588 | PTR scnhdr; | |
1589 | { | |
1590 | struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr; | |
1591 | asection *real_sec; | |
1592 | asection **ps; | |
1593 | ||
1594 | if ((hdr->s_flags & STYP_OVRFLO) == 0) | |
1595 | return; | |
1596 | ||
1597 | real_sec = coff_section_from_bfd_index (abfd, hdr->s_nreloc); | |
1598 | if (real_sec == NULL) | |
1599 | return; | |
1600 | ||
1601 | real_sec->reloc_count = hdr->s_paddr; | |
1602 | real_sec->lineno_count = hdr->s_vaddr; | |
1603 | ||
1604 | for (ps = &abfd->sections; *ps != NULL; ps = &(*ps)->next) | |
1605 | { | |
1606 | if (*ps == section) | |
1607 | { | |
1608 | *ps = (*ps)->next; | |
1609 | --abfd->section_count; | |
1610 | break; | |
1611 | } | |
1612 | } | |
1613 | } | |
1614 | ||
1615 | #else /* ! RS6000COFF_C */ | |
1616 | ||
1617 | #define coff_set_alignment_hook \ | |
1618 | ((void (*) PARAMS ((bfd *, asection *, PTR))) bfd_void) | |
1619 | ||
1620 | #endif /* ! RS6000COFF_C */ | |
1621 | #endif /* ! COFF_WITH_PE */ | |
1622 | #endif /* ! COFF_ALIGN_IN_SECTION_HEADER */ | |
1623 | ||
1624 | #ifndef coff_mkobject | |
1625 | ||
1626 | static boolean coff_mkobject PARAMS ((bfd *)); | |
1627 | ||
1628 | static boolean | |
1629 | coff_mkobject (abfd) | |
1630 | bfd * abfd; | |
1631 | { | |
1632 | coff_data_type *coff; | |
1633 | ||
1634 | abfd->tdata.coff_obj_data = (struct coff_tdata *) bfd_zalloc (abfd, sizeof (coff_data_type)); | |
1635 | if (abfd->tdata.coff_obj_data == 0) | |
1636 | return false; | |
1637 | coff = coff_data (abfd); | |
1638 | coff->symbols = (coff_symbol_type *) NULL; | |
1639 | coff->conversion_table = (unsigned int *) NULL; | |
1640 | coff->raw_syments = (struct coff_ptr_struct *) NULL; | |
1641 | coff->relocbase = 0; | |
1642 | coff->local_toc_sym_map = 0; | |
1643 | ||
1644 | /* make_abs_section(abfd);*/ | |
1645 | ||
1646 | return true; | |
1647 | } | |
1648 | #endif | |
1649 | ||
1650 | /* Create the COFF backend specific information. */ | |
1651 | #ifndef coff_mkobject_hook | |
1652 | static PTR | |
1653 | coff_mkobject_hook (abfd, filehdr, aouthdr) | |
1654 | bfd * abfd; | |
1655 | PTR filehdr; | |
5f771d47 | 1656 | PTR aouthdr ATTRIBUTE_UNUSED; |
252b5132 RH |
1657 | { |
1658 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
1659 | coff_data_type *coff; | |
1660 | ||
1661 | if (coff_mkobject (abfd) == false) | |
1662 | return NULL; | |
1663 | ||
1664 | coff = coff_data (abfd); | |
1665 | ||
1666 | coff->sym_filepos = internal_f->f_symptr; | |
1667 | ||
1668 | /* These members communicate important constants about the symbol | |
1669 | table to GDB's symbol-reading code. These `constants' | |
1670 | unfortunately vary among coff implementations... */ | |
1671 | coff->local_n_btmask = N_BTMASK; | |
1672 | coff->local_n_btshft = N_BTSHFT; | |
1673 | coff->local_n_tmask = N_TMASK; | |
1674 | coff->local_n_tshift = N_TSHIFT; | |
6b3b007b NC |
1675 | coff->local_symesz = bfd_coff_symesz (abfd); |
1676 | coff->local_auxesz = bfd_coff_auxesz (abfd); | |
1677 | coff->local_linesz = bfd_coff_linesz (abfd); | |
252b5132 | 1678 | |
1135238b ILT |
1679 | coff->timestamp = internal_f->f_timdat; |
1680 | ||
252b5132 RH |
1681 | obj_raw_syment_count (abfd) = |
1682 | obj_conv_table_size (abfd) = | |
1683 | internal_f->f_nsyms; | |
1684 | ||
1685 | #ifdef RS6000COFF_C | |
1686 | if ((internal_f->f_flags & F_SHROBJ) != 0) | |
1687 | abfd->flags |= DYNAMIC; | |
6b3b007b | 1688 | if (aouthdr != NULL && internal_f->f_opthdr >= bfd_coff_aoutsz (abfd)) |
252b5132 RH |
1689 | { |
1690 | struct internal_aouthdr *internal_a = | |
1691 | (struct internal_aouthdr *) aouthdr; | |
1692 | struct xcoff_tdata *xcoff; | |
1693 | ||
1694 | xcoff = xcoff_data (abfd); | |
1695 | xcoff->full_aouthdr = true; | |
1696 | xcoff->toc = internal_a->o_toc; | |
1697 | xcoff->sntoc = internal_a->o_sntoc; | |
1698 | xcoff->snentry = internal_a->o_snentry; | |
1699 | xcoff->text_align_power = internal_a->o_algntext; | |
1700 | xcoff->data_align_power = internal_a->o_algndata; | |
1701 | xcoff->modtype = internal_a->o_modtype; | |
1702 | xcoff->cputype = internal_a->o_cputype; | |
1703 | xcoff->maxdata = internal_a->o_maxdata; | |
1704 | xcoff->maxstack = internal_a->o_maxstack; | |
1705 | } | |
1706 | #endif | |
1707 | ||
1708 | #ifdef ARM | |
1709 | /* Set the flags field from the COFF header read in */ | |
1710 | if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags)) | |
1711 | coff->flags = 0; | |
1712 | #endif | |
1713 | ||
4cfec37b ILT |
1714 | #ifdef COFF_WITH_PE |
1715 | /* FIXME: I'm not sure this is ever executed, since peicode.h | |
1716 | defines coff_mkobject_hook. */ | |
1717 | if ((internal_f->f_flags & IMAGE_FILE_DEBUG_STRIPPED) == 0) | |
1718 | abfd->flags |= HAS_DEBUG; | |
1719 | #endif | |
1720 | ||
252b5132 RH |
1721 | return (PTR) coff; |
1722 | } | |
1723 | #endif | |
1724 | ||
1725 | /* Determine the machine architecture and type. FIXME: This is target | |
1726 | dependent because the magic numbers are defined in the target | |
1727 | dependent header files. But there is no particular need for this. | |
1728 | If the magic numbers were moved to a separate file, this function | |
1729 | would be target independent and would also be much more successful | |
1730 | at linking together COFF files for different architectures. */ | |
1731 | ||
1732 | static boolean | |
1733 | coff_set_arch_mach_hook (abfd, filehdr) | |
1734 | bfd *abfd; | |
1735 | PTR filehdr; | |
1736 | { | |
1737 | long machine; | |
1738 | enum bfd_architecture arch; | |
1739 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
1740 | ||
1741 | machine = 0; | |
1742 | switch (internal_f->f_magic) | |
1743 | { | |
1744 | #ifdef PPCMAGIC | |
1745 | case PPCMAGIC: | |
1746 | arch = bfd_arch_powerpc; | |
1747 | machine = 0; /* what does this mean? (krk) */ | |
1748 | break; | |
1749 | #endif | |
1750 | #ifdef I386MAGIC | |
1751 | case I386MAGIC: | |
1752 | case I386PTXMAGIC: | |
1753 | case I386AIXMAGIC: /* Danbury PS/2 AIX C Compiler */ | |
1754 | case LYNXCOFFMAGIC: /* shadows the m68k Lynx number below, sigh */ | |
1755 | arch = bfd_arch_i386; | |
1756 | machine = 0; | |
1757 | break; | |
1758 | #endif | |
1759 | #ifdef A29K_MAGIC_BIG | |
1760 | case A29K_MAGIC_BIG: | |
1761 | case A29K_MAGIC_LITTLE: | |
1762 | arch = bfd_arch_a29k; | |
1763 | machine = 0; | |
1764 | break; | |
1765 | #endif | |
1766 | #ifdef ARMMAGIC | |
1767 | case ARMMAGIC: | |
17505c5c NC |
1768 | case ARMPEMAGIC: |
1769 | case THUMBPEMAGIC: | |
252b5132 RH |
1770 | arch = bfd_arch_arm; |
1771 | switch (internal_f->f_flags & F_ARM_ARCHITECTURE_MASK) | |
1772 | { | |
948221a8 NC |
1773 | case F_ARM_2: machine = bfd_mach_arm_2; break; |
1774 | case F_ARM_2a: machine = bfd_mach_arm_2a; break; | |
1775 | case F_ARM_3: machine = bfd_mach_arm_3; break; | |
1776 | default: | |
1777 | case F_ARM_3M: machine = bfd_mach_arm_3M; break; | |
1778 | case F_ARM_4: machine = bfd_mach_arm_4; break; | |
1779 | case F_ARM_4T: machine = bfd_mach_arm_4T; break; | |
478d07d6 | 1780 | case F_ARM_5: machine = bfd_mach_arm_5; break; |
252b5132 RH |
1781 | } |
1782 | break; | |
1783 | #endif | |
1784 | #ifdef MC68MAGIC | |
1785 | case MC68MAGIC: | |
1786 | case M68MAGIC: | |
1787 | #ifdef MC68KBCSMAGIC | |
1788 | case MC68KBCSMAGIC: | |
1789 | #endif | |
1790 | #ifdef APOLLOM68KMAGIC | |
1791 | case APOLLOM68KMAGIC: | |
1792 | #endif | |
1793 | #ifdef LYNXCOFFMAGIC | |
1794 | case LYNXCOFFMAGIC: | |
1795 | #endif | |
1796 | arch = bfd_arch_m68k; | |
1797 | machine = bfd_mach_m68020; | |
1798 | break; | |
1799 | #endif | |
1800 | #ifdef MC88MAGIC | |
1801 | case MC88MAGIC: | |
1802 | case MC88DMAGIC: | |
1803 | case MC88OMAGIC: | |
1804 | arch = bfd_arch_m88k; | |
1805 | machine = 88100; | |
1806 | break; | |
1807 | #endif | |
1808 | #ifdef Z8KMAGIC | |
1809 | case Z8KMAGIC: | |
1810 | arch = bfd_arch_z8k; | |
1811 | switch (internal_f->f_flags & F_MACHMASK) | |
1812 | { | |
1813 | case F_Z8001: | |
1814 | machine = bfd_mach_z8001; | |
1815 | break; | |
1816 | case F_Z8002: | |
1817 | machine = bfd_mach_z8002; | |
1818 | break; | |
1819 | default: | |
1820 | return false; | |
1821 | } | |
1822 | break; | |
1823 | #endif | |
1824 | #ifdef I860 | |
1825 | case I860MAGIC: | |
1826 | arch = bfd_arch_i860; | |
1827 | break; | |
1828 | #endif | |
1829 | #ifdef I960 | |
1830 | #ifdef I960ROMAGIC | |
1831 | case I960ROMAGIC: | |
1832 | case I960RWMAGIC: | |
1833 | arch = bfd_arch_i960; | |
1834 | switch (F_I960TYPE & internal_f->f_flags) | |
1835 | { | |
1836 | default: | |
1837 | case F_I960CORE: | |
1838 | machine = bfd_mach_i960_core; | |
1839 | break; | |
1840 | case F_I960KB: | |
1841 | machine = bfd_mach_i960_kb_sb; | |
1842 | break; | |
1843 | case F_I960MC: | |
1844 | machine = bfd_mach_i960_mc; | |
1845 | break; | |
1846 | case F_I960XA: | |
1847 | machine = bfd_mach_i960_xa; | |
1848 | break; | |
1849 | case F_I960CA: | |
1850 | machine = bfd_mach_i960_ca; | |
1851 | break; | |
1852 | case F_I960KA: | |
1853 | machine = bfd_mach_i960_ka_sa; | |
1854 | break; | |
1855 | case F_I960JX: | |
1856 | machine = bfd_mach_i960_jx; | |
1857 | break; | |
1858 | case F_I960HX: | |
1859 | machine = bfd_mach_i960_hx; | |
1860 | break; | |
1861 | } | |
1862 | break; | |
1863 | #endif | |
1864 | #endif | |
1865 | ||
1866 | #ifdef RS6000COFF_C | |
1867 | case U802ROMAGIC: | |
1868 | case U802WRMAGIC: | |
1869 | case U802TOCMAGIC: | |
1870 | { | |
1871 | int cputype; | |
1872 | ||
1873 | if (xcoff_data (abfd)->cputype != -1) | |
1874 | cputype = xcoff_data (abfd)->cputype & 0xff; | |
1875 | else | |
1876 | { | |
1877 | /* We did not get a value from the a.out header. If the | |
1878 | file has not been stripped, we may be able to get the | |
1879 | architecture information from the first symbol, if it | |
1880 | is a .file symbol. */ | |
1881 | if (obj_raw_syment_count (abfd) == 0) | |
1882 | cputype = 0; | |
1883 | else | |
1884 | { | |
5ea1af0d | 1885 | bfd_byte *buf; |
252b5132 RH |
1886 | struct internal_syment sym; |
1887 | ||
5ea1af0d | 1888 | buf = (bfd_byte *) bfd_malloc (bfd_coff_symesz (abfd)); |
252b5132 | 1889 | if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0 |
5ea1af0d GK |
1890 | || (bfd_read (buf, 1, bfd_coff_symesz (abfd), abfd) |
1891 | != bfd_coff_symesz (abfd))) | |
1892 | { | |
2fca4467 | 1893 | free (buf); |
5ea1af0d GK |
1894 | return false; |
1895 | } | |
252b5132 RH |
1896 | coff_swap_sym_in (abfd, (PTR) buf, (PTR) &sym); |
1897 | if (sym.n_sclass == C_FILE) | |
1898 | cputype = sym.n_type & 0xff; | |
1899 | else | |
1900 | cputype = 0; | |
2fca4467 | 1901 | free (buf); |
252b5132 RH |
1902 | } |
1903 | } | |
1904 | ||
1905 | /* FIXME: We don't handle all cases here. */ | |
1906 | switch (cputype) | |
1907 | { | |
1908 | default: | |
1909 | case 0: | |
1910 | #ifdef POWERMAC | |
1911 | /* PowerPC Macs use the same magic numbers as RS/6000 | |
1912 | (because that's how they were bootstrapped originally), | |
1913 | but they are always PowerPC architecture. */ | |
1914 | arch = bfd_arch_powerpc; | |
1915 | machine = 0; | |
1916 | #else | |
1917 | arch = bfd_arch_rs6000; | |
1918 | machine = 6000; | |
1919 | #endif /* POWERMAC */ | |
1920 | break; | |
1921 | ||
1922 | case 1: | |
1923 | arch = bfd_arch_powerpc; | |
1924 | machine = 601; | |
1925 | break; | |
1926 | case 2: /* 64 bit PowerPC */ | |
1927 | arch = bfd_arch_powerpc; | |
1928 | machine = 620; | |
1929 | break; | |
1930 | case 3: | |
1931 | arch = bfd_arch_powerpc; | |
1932 | machine = 0; | |
1933 | break; | |
1934 | case 4: | |
1935 | arch = bfd_arch_rs6000; | |
1936 | machine = 6000; | |
1937 | break; | |
1938 | } | |
1939 | } | |
1940 | break; | |
1941 | #endif | |
1942 | ||
1943 | #ifdef WE32KMAGIC | |
1944 | case WE32KMAGIC: | |
1945 | arch = bfd_arch_we32k; | |
1946 | machine = 0; | |
1947 | break; | |
1948 | #endif | |
1949 | ||
1950 | #ifdef H8300MAGIC | |
1951 | case H8300MAGIC: | |
1952 | arch = bfd_arch_h8300; | |
1953 | machine = bfd_mach_h8300; | |
1954 | /* !! FIXME this probably isn't the right place for this */ | |
1955 | abfd->flags |= BFD_IS_RELAXABLE; | |
1956 | break; | |
1957 | #endif | |
1958 | ||
1959 | #ifdef H8300HMAGIC | |
1960 | case H8300HMAGIC: | |
1961 | arch = bfd_arch_h8300; | |
1962 | machine = bfd_mach_h8300h; | |
1963 | /* !! FIXME this probably isn't the right place for this */ | |
1964 | abfd->flags |= BFD_IS_RELAXABLE; | |
1965 | break; | |
1966 | #endif | |
1967 | ||
1968 | #ifdef H8300SMAGIC | |
1969 | case H8300SMAGIC: | |
1970 | arch = bfd_arch_h8300; | |
1971 | machine = bfd_mach_h8300s; | |
1972 | /* !! FIXME this probably isn't the right place for this */ | |
1973 | abfd->flags |= BFD_IS_RELAXABLE; | |
1974 | break; | |
1975 | #endif | |
1976 | ||
1977 | #ifdef SH_ARCH_MAGIC_BIG | |
1978 | case SH_ARCH_MAGIC_BIG: | |
1979 | case SH_ARCH_MAGIC_LITTLE: | |
17505c5c NC |
1980 | #ifdef COFF_WITH_PE |
1981 | case SH_ARCH_MAGIC_WINCE: | |
1982 | #endif | |
252b5132 RH |
1983 | arch = bfd_arch_sh; |
1984 | machine = 0; | |
1985 | break; | |
1986 | #endif | |
1987 | ||
17505c5c NC |
1988 | #ifdef MIPS_ARCH_MAGIC_WINCE |
1989 | case MIPS_ARCH_MAGIC_WINCE: | |
1990 | arch = bfd_arch_mips; | |
1991 | machine = 0; | |
1992 | break; | |
1993 | #endif | |
1994 | ||
252b5132 RH |
1995 | #ifdef H8500MAGIC |
1996 | case H8500MAGIC: | |
1997 | arch = bfd_arch_h8500; | |
1998 | machine = 0; | |
1999 | break; | |
2000 | #endif | |
2001 | ||
2002 | #ifdef SPARCMAGIC | |
2003 | case SPARCMAGIC: | |
2004 | #ifdef LYNXCOFFMAGIC | |
2005 | case LYNXCOFFMAGIC: | |
2006 | #endif | |
2007 | arch = bfd_arch_sparc; | |
2008 | machine = 0; | |
2009 | break; | |
2010 | #endif | |
2011 | ||
2012 | #ifdef TIC30MAGIC | |
2013 | case TIC30MAGIC: | |
2014 | arch = bfd_arch_tic30; | |
2015 | break; | |
2016 | #endif | |
2017 | ||
2018 | #ifdef TIC80_ARCH_MAGIC | |
2019 | case TIC80_ARCH_MAGIC: | |
2020 | arch = bfd_arch_tic80; | |
2021 | break; | |
2022 | #endif | |
2023 | ||
2024 | #ifdef MCOREMAGIC | |
2025 | case MCOREMAGIC: | |
2026 | arch = bfd_arch_mcore; | |
2027 | break; | |
2028 | #endif | |
2029 | default: /* Unreadable input file type */ | |
2030 | arch = bfd_arch_obscure; | |
2031 | break; | |
2032 | } | |
2033 | ||
2034 | bfd_default_set_arch_mach (abfd, arch, machine); | |
2035 | return true; | |
2036 | } | |
2037 | ||
2038 | #ifdef SYMNAME_IN_DEBUG | |
2039 | ||
2040 | static boolean symname_in_debug_hook | |
2041 | PARAMS ((bfd *, struct internal_syment *)); | |
2042 | ||
2043 | static boolean | |
2044 | symname_in_debug_hook (abfd, sym) | |
5f771d47 | 2045 | bfd * abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
2046 | struct internal_syment *sym; |
2047 | { | |
2048 | return SYMNAME_IN_DEBUG (sym) ? true : false; | |
2049 | } | |
2050 | ||
2051 | #else | |
2052 | ||
2053 | #define symname_in_debug_hook \ | |
2054 | (boolean (*) PARAMS ((bfd *, struct internal_syment *))) bfd_false | |
2055 | ||
2056 | #endif | |
2057 | ||
2058 | #ifdef RS6000COFF_C | |
2059 | ||
2060 | /* Handle the csect auxent of a C_EXT or C_HIDEXT symbol. */ | |
2061 | ||
2062 | static boolean coff_pointerize_aux_hook | |
2063 | PARAMS ((bfd *, combined_entry_type *, combined_entry_type *, | |
2064 | unsigned int, combined_entry_type *)); | |
2065 | ||
2066 | /*ARGSUSED*/ | |
2067 | static boolean | |
2068 | coff_pointerize_aux_hook (abfd, table_base, symbol, indaux, aux) | |
5f771d47 | 2069 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
2070 | combined_entry_type *table_base; |
2071 | combined_entry_type *symbol; | |
2072 | unsigned int indaux; | |
2073 | combined_entry_type *aux; | |
2074 | { | |
2075 | int class = symbol->u.syment.n_sclass; | |
2076 | ||
2077 | if ((class == C_EXT || class == C_HIDEXT) | |
2078 | && indaux + 1 == symbol->u.syment.n_numaux) | |
2079 | { | |
2080 | if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) == XTY_LD) | |
2081 | { | |
2082 | aux->u.auxent.x_csect.x_scnlen.p = | |
2083 | table_base + aux->u.auxent.x_csect.x_scnlen.l; | |
2084 | aux->fix_scnlen = 1; | |
2085 | } | |
2086 | ||
2087 | /* Return true to indicate that the caller should not do any | |
2088 | further work on this auxent. */ | |
2089 | return true; | |
2090 | } | |
2091 | ||
2092 | /* Return false to indicate that this auxent should be handled by | |
2093 | the caller. */ | |
2094 | return false; | |
2095 | } | |
2096 | ||
2097 | #else | |
2098 | #ifdef I960 | |
2099 | ||
2100 | /* We don't want to pointerize bal entries. */ | |
2101 | ||
2102 | static boolean coff_pointerize_aux_hook | |
2103 | PARAMS ((bfd *, combined_entry_type *, combined_entry_type *, | |
2104 | unsigned int, combined_entry_type *)); | |
2105 | ||
2106 | /*ARGSUSED*/ | |
2107 | static boolean | |
2108 | coff_pointerize_aux_hook (abfd, table_base, symbol, indaux, aux) | |
5f771d47 ILT |
2109 | bfd *abfd ATTRIBUTE_UNUSED; |
2110 | combined_entry_type *table_base ATTRIBUTE_UNUSED; | |
252b5132 RH |
2111 | combined_entry_type *symbol; |
2112 | unsigned int indaux; | |
5f771d47 | 2113 | combined_entry_type *aux ATTRIBUTE_UNUSED; |
252b5132 RH |
2114 | { |
2115 | /* Return true if we don't want to pointerize this aux entry, which | |
2116 | is the case for the lastfirst aux entry for a C_LEAFPROC symbol. */ | |
2117 | return (indaux == 1 | |
2118 | && (symbol->u.syment.n_sclass == C_LEAFPROC | |
2119 | || symbol->u.syment.n_sclass == C_LEAFSTAT | |
2120 | || symbol->u.syment.n_sclass == C_LEAFEXT)); | |
2121 | } | |
2122 | ||
2123 | #else /* ! I960 */ | |
2124 | ||
2125 | #define coff_pointerize_aux_hook 0 | |
2126 | ||
2127 | #endif /* ! I960 */ | |
2128 | #endif /* ! RS6000COFF_C */ | |
2129 | ||
2130 | /* Print an aux entry. This returns true if it has printed it. */ | |
2131 | ||
2132 | static boolean coff_print_aux | |
2133 | PARAMS ((bfd *, FILE *, combined_entry_type *, combined_entry_type *, | |
2134 | combined_entry_type *, unsigned int)); | |
2135 | ||
2136 | static boolean | |
2137 | coff_print_aux (abfd, file, table_base, symbol, aux, indaux) | |
5f771d47 ILT |
2138 | bfd *abfd ATTRIBUTE_UNUSED; |
2139 | FILE *file ATTRIBUTE_UNUSED; | |
2140 | combined_entry_type *table_base ATTRIBUTE_UNUSED; | |
2141 | combined_entry_type *symbol ATTRIBUTE_UNUSED; | |
2142 | combined_entry_type *aux ATTRIBUTE_UNUSED; | |
2143 | unsigned int indaux ATTRIBUTE_UNUSED; | |
252b5132 RH |
2144 | { |
2145 | #ifdef RS6000COFF_C | |
2146 | if ((symbol->u.syment.n_sclass == C_EXT | |
2147 | || symbol->u.syment.n_sclass == C_HIDEXT) | |
2148 | && indaux + 1 == symbol->u.syment.n_numaux) | |
2149 | { | |
2150 | /* This is a csect entry. */ | |
2151 | fprintf (file, "AUX "); | |
2152 | if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) != XTY_LD) | |
2153 | { | |
2154 | BFD_ASSERT (! aux->fix_scnlen); | |
2155 | fprintf (file, "val %5ld", aux->u.auxent.x_csect.x_scnlen.l); | |
2156 | } | |
2157 | else | |
2158 | { | |
2159 | fprintf (file, "indx "); | |
2160 | if (! aux->fix_scnlen) | |
2161 | fprintf (file, "%4ld", aux->u.auxent.x_csect.x_scnlen.l); | |
2162 | else | |
2163 | fprintf (file, "%4ld", | |
2164 | (long) (aux->u.auxent.x_csect.x_scnlen.p - table_base)); | |
2165 | } | |
2166 | fprintf (file, | |
2167 | " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u", | |
2168 | aux->u.auxent.x_csect.x_parmhash, | |
2169 | (unsigned int) aux->u.auxent.x_csect.x_snhash, | |
2170 | SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp), | |
2171 | SMTYP_ALIGN (aux->u.auxent.x_csect.x_smtyp), | |
2172 | (unsigned int) aux->u.auxent.x_csect.x_smclas, | |
2173 | aux->u.auxent.x_csect.x_stab, | |
2174 | (unsigned int) aux->u.auxent.x_csect.x_snstab); | |
2175 | return true; | |
2176 | } | |
2177 | #endif | |
2178 | ||
2179 | /* Return false to indicate that no special action was taken. */ | |
2180 | return false; | |
2181 | } | |
2182 | ||
2183 | /* | |
2184 | SUBSUBSECTION | |
2185 | Writing relocations | |
2186 | ||
2187 | To write relocations, the back end steps though the | |
2188 | canonical relocation table and create an | |
2189 | @code{internal_reloc}. The symbol index to use is removed from | |
2190 | the @code{offset} field in the symbol table supplied. The | |
2191 | address comes directly from the sum of the section base | |
2192 | address and the relocation offset; the type is dug directly | |
2193 | from the howto field. Then the @code{internal_reloc} is | |
2194 | swapped into the shape of an @code{external_reloc} and written | |
2195 | out to disk. | |
2196 | ||
2197 | */ | |
2198 | ||
2199 | #ifdef TARG_AUX | |
2200 | ||
2201 | static int compare_arelent_ptr PARAMS ((const PTR, const PTR)); | |
2202 | ||
2203 | /* AUX's ld wants relocations to be sorted */ | |
2204 | static int | |
2205 | compare_arelent_ptr (x, y) | |
2206 | const PTR x; | |
2207 | const PTR y; | |
2208 | { | |
2209 | const arelent **a = (const arelent **) x; | |
2210 | const arelent **b = (const arelent **) y; | |
2211 | bfd_size_type aadr = (*a)->address; | |
2212 | bfd_size_type badr = (*b)->address; | |
2213 | ||
2214 | return (aadr < badr ? -1 : badr < aadr ? 1 : 0); | |
2215 | } | |
2216 | ||
2217 | #endif /* TARG_AUX */ | |
2218 | ||
2219 | static boolean | |
2220 | coff_write_relocs (abfd, first_undef) | |
2221 | bfd * abfd; | |
2222 | int first_undef; | |
2223 | { | |
2224 | asection *s; | |
2225 | ||
2226 | for (s = abfd->sections; s != (asection *) NULL; s = s->next) | |
2227 | { | |
2228 | unsigned int i; | |
2229 | struct external_reloc dst; | |
2230 | arelent **p; | |
2231 | ||
2232 | #ifndef TARG_AUX | |
2233 | p = s->orelocation; | |
2234 | #else | |
2235 | /* sort relocations before we write them out */ | |
2236 | p = (arelent **) bfd_malloc (s->reloc_count * sizeof (arelent *)); | |
2237 | if (p == NULL && s->reloc_count > 0) | |
2238 | return false; | |
2239 | memcpy (p, s->orelocation, s->reloc_count * sizeof (arelent *)); | |
2240 | qsort (p, s->reloc_count, sizeof (arelent *), compare_arelent_ptr); | |
2241 | #endif | |
2242 | ||
2243 | if (bfd_seek (abfd, s->rel_filepos, SEEK_SET) != 0) | |
2244 | return false; | |
2245 | for (i = 0; i < s->reloc_count; i++) | |
2246 | { | |
2247 | struct internal_reloc n; | |
2248 | arelent *q = p[i]; | |
2249 | memset ((PTR) & n, 0, sizeof (n)); | |
2250 | ||
2251 | /* Now we've renumbered the symbols we know where the | |
2252 | undefined symbols live in the table. Check the reloc | |
2253 | entries for symbols who's output bfd isn't the right one. | |
2254 | This is because the symbol was undefined (which means | |
2255 | that all the pointers are never made to point to the same | |
2256 | place). This is a bad thing,'cause the symbols attached | |
2257 | to the output bfd are indexed, so that the relocation | |
2258 | entries know which symbol index they point to. So we | |
2259 | have to look up the output symbol here. */ | |
2260 | ||
2261 | if (q->sym_ptr_ptr[0]->the_bfd != abfd) | |
2262 | { | |
2263 | int i; | |
2264 | const char *sname = q->sym_ptr_ptr[0]->name; | |
2265 | asymbol **outsyms = abfd->outsymbols; | |
2266 | for (i = first_undef; outsyms[i]; i++) | |
2267 | { | |
2268 | const char *intable = outsyms[i]->name; | |
2269 | if (strcmp (intable, sname) == 0) { | |
2270 | /* got a hit, so repoint the reloc */ | |
2271 | q->sym_ptr_ptr = outsyms + i; | |
2272 | break; | |
2273 | } | |
2274 | } | |
2275 | } | |
2276 | ||
2277 | n.r_vaddr = q->address + s->vma; | |
2278 | ||
2279 | #ifdef R_IHCONST | |
2280 | /* The 29k const/consth reloc pair is a real kludge. The consth | |
2281 | part doesn't have a symbol; it has an offset. So rebuilt | |
2282 | that here. */ | |
2283 | if (q->howto->type == R_IHCONST) | |
2284 | n.r_symndx = q->addend; | |
2285 | else | |
2286 | #endif | |
2287 | if (q->sym_ptr_ptr) | |
2288 | { | |
6c784c9a TW |
2289 | #ifdef SECTION_RELATIVE_ABSOLUTE_SYMBOL_P |
2290 | if (SECTION_RELATIVE_ABSOLUTE_SYMBOL_P (q,s)) | |
2291 | #else | |
252b5132 | 2292 | if (q->sym_ptr_ptr == bfd_abs_section_ptr->symbol_ptr_ptr) |
6c784c9a | 2293 | #endif |
252b5132 RH |
2294 | /* This is a relocation relative to the absolute symbol. */ |
2295 | n.r_symndx = -1; | |
2296 | else | |
2297 | { | |
2298 | n.r_symndx = get_index ((*(q->sym_ptr_ptr))); | |
2299 | /* Take notice if the symbol reloc points to a symbol | |
2300 | we don't have in our symbol table. What should we | |
2301 | do for this?? */ | |
2302 | if (n.r_symndx > obj_conv_table_size (abfd)) | |
2303 | abort (); | |
2304 | } | |
2305 | } | |
2306 | ||
2307 | #ifdef SWAP_OUT_RELOC_OFFSET | |
2308 | n.r_offset = q->addend; | |
2309 | #endif | |
2310 | ||
2311 | #ifdef SELECT_RELOC | |
2312 | /* Work out reloc type from what is required */ | |
2313 | SELECT_RELOC (n, q->howto); | |
2314 | #else | |
2315 | n.r_type = q->howto->type; | |
2316 | #endif | |
2317 | coff_swap_reloc_out (abfd, &n, &dst); | |
6b3b007b NC |
2318 | if (bfd_write ((PTR) & dst, 1, bfd_coff_relsz (abfd), abfd) |
2319 | != bfd_coff_relsz (abfd)) | |
252b5132 RH |
2320 | return false; |
2321 | } | |
2322 | ||
2323 | #ifdef TARG_AUX | |
2324 | if (p != NULL) | |
2325 | free (p); | |
2326 | #endif | |
2327 | } | |
2328 | ||
2329 | return true; | |
2330 | } | |
2331 | ||
2332 | /* Set flags and magic number of a coff file from architecture and machine | |
2333 | type. Result is true if we can represent the arch&type, false if not. */ | |
2334 | ||
2335 | static boolean | |
2336 | coff_set_flags (abfd, magicp, flagsp) | |
2337 | bfd * abfd; | |
5f771d47 ILT |
2338 | unsigned int *magicp ATTRIBUTE_UNUSED; |
2339 | unsigned short *flagsp ATTRIBUTE_UNUSED; | |
252b5132 RH |
2340 | { |
2341 | switch (bfd_get_arch (abfd)) | |
2342 | { | |
2343 | #ifdef Z8KMAGIC | |
2344 | case bfd_arch_z8k: | |
2345 | *magicp = Z8KMAGIC; | |
2346 | switch (bfd_get_mach (abfd)) | |
2347 | { | |
2348 | case bfd_mach_z8001: | |
2349 | *flagsp = F_Z8001; | |
2350 | break; | |
2351 | case bfd_mach_z8002: | |
2352 | *flagsp = F_Z8002; | |
2353 | break; | |
2354 | default: | |
2355 | return false; | |
2356 | } | |
2357 | return true; | |
2358 | #endif | |
2359 | #ifdef I960ROMAGIC | |
2360 | ||
2361 | case bfd_arch_i960: | |
2362 | ||
2363 | { | |
2364 | unsigned flags; | |
2365 | *magicp = I960ROMAGIC; | |
2366 | /* | |
2367 | ((bfd_get_file_flags(abfd) & WP_TEXT) ? I960ROMAGIC : | |
2368 | I960RWMAGIC); FIXME??? | |
2369 | */ | |
2370 | switch (bfd_get_mach (abfd)) | |
2371 | { | |
2372 | case bfd_mach_i960_core: | |
2373 | flags = F_I960CORE; | |
2374 | break; | |
2375 | case bfd_mach_i960_kb_sb: | |
2376 | flags = F_I960KB; | |
2377 | break; | |
2378 | case bfd_mach_i960_mc: | |
2379 | flags = F_I960MC; | |
2380 | break; | |
2381 | case bfd_mach_i960_xa: | |
2382 | flags = F_I960XA; | |
2383 | break; | |
2384 | case bfd_mach_i960_ca: | |
2385 | flags = F_I960CA; | |
2386 | break; | |
2387 | case bfd_mach_i960_ka_sa: | |
2388 | flags = F_I960KA; | |
2389 | break; | |
2390 | case bfd_mach_i960_jx: | |
2391 | flags = F_I960JX; | |
2392 | break; | |
2393 | case bfd_mach_i960_hx: | |
2394 | flags = F_I960HX; | |
2395 | break; | |
2396 | default: | |
2397 | return false; | |
2398 | } | |
2399 | *flagsp = flags; | |
2400 | return true; | |
2401 | } | |
2402 | break; | |
2403 | #endif | |
2404 | ||
2405 | #ifdef TIC30MAGIC | |
2406 | case bfd_arch_tic30: | |
2407 | *magicp = TIC30MAGIC; | |
2408 | return true; | |
2409 | #endif | |
2410 | #ifdef TIC80_ARCH_MAGIC | |
2411 | case bfd_arch_tic80: | |
2412 | *magicp = TIC80_ARCH_MAGIC; | |
2413 | return true; | |
2414 | #endif | |
2415 | #ifdef ARMMAGIC | |
2416 | case bfd_arch_arm: | |
17505c5c NC |
2417 | #ifdef ARM_WINCE |
2418 | * magicp = ARMPEMAGIC; | |
2419 | #else | |
252b5132 | 2420 | * magicp = ARMMAGIC; |
17505c5c | 2421 | #endif |
252b5132 RH |
2422 | * flagsp = 0; |
2423 | if (APCS_SET (abfd)) | |
2424 | { | |
2425 | if (APCS_26_FLAG (abfd)) | |
2426 | * flagsp |= F_APCS26; | |
2427 | ||
2428 | if (APCS_FLOAT_FLAG (abfd)) | |
2429 | * flagsp |= F_APCS_FLOAT; | |
2430 | ||
2431 | if (PIC_FLAG (abfd)) | |
948221a8 | 2432 | * flagsp |= F_PIC; |
252b5132 RH |
2433 | } |
2434 | if (INTERWORK_SET (abfd) && INTERWORK_FLAG (abfd)) | |
2435 | * flagsp |= F_INTERWORK; | |
2436 | switch (bfd_get_mach (abfd)) | |
2437 | { | |
2438 | case bfd_mach_arm_2: * flagsp |= F_ARM_2; break; | |
2439 | case bfd_mach_arm_2a: * flagsp |= F_ARM_2a; break; | |
2440 | case bfd_mach_arm_3: * flagsp |= F_ARM_3; break; | |
2441 | case bfd_mach_arm_3M: * flagsp |= F_ARM_3M; break; | |
2442 | case bfd_mach_arm_4: * flagsp |= F_ARM_4; break; | |
2443 | case bfd_mach_arm_4T: * flagsp |= F_ARM_4T; break; | |
478d07d6 NC |
2444 | case bfd_mach_arm_5: * flagsp |= F_ARM_5; break; |
2445 | case bfd_mach_arm_5T: * flagsp |= F_ARM_5; break; /* XXX - we do not have an F_ARM_5T */ | |
252b5132 RH |
2446 | } |
2447 | return true; | |
2448 | #endif | |
2449 | #ifdef PPCMAGIC | |
2450 | case bfd_arch_powerpc: | |
2451 | *magicp = PPCMAGIC; | |
2452 | return true; | |
2453 | break; | |
2454 | #endif | |
2455 | #ifdef I386MAGIC | |
2456 | case bfd_arch_i386: | |
2457 | *magicp = I386MAGIC; | |
2458 | #ifdef LYNXOS | |
2459 | /* Just overwrite the usual value if we're doing Lynx. */ | |
2460 | *magicp = LYNXCOFFMAGIC; | |
2461 | #endif | |
2462 | return true; | |
2463 | break; | |
2464 | #endif | |
2465 | #ifdef I860MAGIC | |
2466 | case bfd_arch_i860: | |
2467 | *magicp = I860MAGIC; | |
2468 | return true; | |
2469 | break; | |
2470 | #endif | |
2471 | #ifdef MC68MAGIC | |
2472 | case bfd_arch_m68k: | |
2473 | #ifdef APOLLOM68KMAGIC | |
2474 | *magicp = APOLLO_COFF_VERSION_NUMBER; | |
2475 | #else | |
2476 | /* NAMES_HAVE_UNDERSCORE may be defined by coff-u68k.c. */ | |
2477 | #ifdef NAMES_HAVE_UNDERSCORE | |
2478 | *magicp = MC68KBCSMAGIC; | |
2479 | #else | |
2480 | *magicp = MC68MAGIC; | |
2481 | #endif | |
2482 | #endif | |
2483 | #ifdef LYNXOS | |
2484 | /* Just overwrite the usual value if we're doing Lynx. */ | |
2485 | *magicp = LYNXCOFFMAGIC; | |
2486 | #endif | |
2487 | return true; | |
2488 | break; | |
2489 | #endif | |
2490 | ||
2491 | #ifdef MC88MAGIC | |
2492 | case bfd_arch_m88k: | |
2493 | *magicp = MC88OMAGIC; | |
2494 | return true; | |
2495 | break; | |
2496 | #endif | |
2497 | #ifdef H8300MAGIC | |
2498 | case bfd_arch_h8300: | |
2499 | switch (bfd_get_mach (abfd)) | |
2500 | { | |
2501 | case bfd_mach_h8300: | |
2502 | *magicp = H8300MAGIC; | |
2503 | return true; | |
2504 | case bfd_mach_h8300h: | |
2505 | *magicp = H8300HMAGIC; | |
2506 | return true; | |
2507 | case bfd_mach_h8300s: | |
2508 | *magicp = H8300SMAGIC; | |
2509 | return true; | |
2510 | } | |
2511 | break; | |
2512 | #endif | |
2513 | ||
2514 | #ifdef SH_ARCH_MAGIC_BIG | |
2515 | case bfd_arch_sh: | |
17505c5c NC |
2516 | #ifdef COFF_IMAGE_WITH_PE |
2517 | *magicp = SH_ARCH_MAGIC_WINCE; | |
2518 | #else | |
252b5132 RH |
2519 | if (bfd_big_endian (abfd)) |
2520 | *magicp = SH_ARCH_MAGIC_BIG; | |
2521 | else | |
2522 | *magicp = SH_ARCH_MAGIC_LITTLE; | |
17505c5c NC |
2523 | #endif |
2524 | return true; | |
2525 | break; | |
2526 | #endif | |
2527 | ||
2528 | #ifdef MIPS_ARCH_MAGIC_WINCE | |
2529 | case bfd_arch_mips: | |
2530 | *magicp = MIPS_ARCH_MAGIC_WINCE; | |
252b5132 RH |
2531 | return true; |
2532 | break; | |
2533 | #endif | |
2534 | ||
2535 | #ifdef SPARCMAGIC | |
2536 | case bfd_arch_sparc: | |
2537 | *magicp = SPARCMAGIC; | |
2538 | #ifdef LYNXOS | |
2539 | /* Just overwrite the usual value if we're doing Lynx. */ | |
2540 | *magicp = LYNXCOFFMAGIC; | |
2541 | #endif | |
2542 | return true; | |
2543 | break; | |
2544 | #endif | |
2545 | ||
2546 | #ifdef H8500MAGIC | |
2547 | case bfd_arch_h8500: | |
2548 | *magicp = H8500MAGIC; | |
2549 | return true; | |
2550 | break; | |
2551 | #endif | |
2552 | #ifdef A29K_MAGIC_BIG | |
2553 | case bfd_arch_a29k: | |
2554 | if (bfd_big_endian (abfd)) | |
2555 | *magicp = A29K_MAGIC_BIG; | |
2556 | else | |
2557 | *magicp = A29K_MAGIC_LITTLE; | |
2558 | return true; | |
2559 | break; | |
2560 | #endif | |
2561 | ||
2562 | #ifdef WE32KMAGIC | |
2563 | case bfd_arch_we32k: | |
2564 | *magicp = WE32KMAGIC; | |
2565 | return true; | |
2566 | break; | |
2567 | #endif | |
2568 | ||
2569 | #ifdef U802TOCMAGIC | |
2570 | case bfd_arch_rs6000: | |
2571 | #ifndef PPCMAGIC | |
2572 | case bfd_arch_powerpc: | |
2573 | #endif | |
2574 | *magicp = U802TOCMAGIC; | |
2575 | return true; | |
2576 | break; | |
2577 | #endif | |
2578 | ||
2579 | #ifdef MCOREMAGIC | |
2580 | case bfd_arch_mcore: | |
2581 | * magicp = MCOREMAGIC; | |
2582 | return true; | |
2583 | #endif | |
2584 | ||
2585 | default: /* Unknown architecture */ | |
2586 | /* return false; -- fall through to "return false" below, to avoid | |
2587 | "statement never reached" errors on the one below. */ | |
2588 | break; | |
2589 | } | |
2590 | ||
2591 | return false; | |
2592 | } | |
2593 | ||
2594 | ||
2595 | static boolean | |
2596 | coff_set_arch_mach (abfd, arch, machine) | |
2597 | bfd * abfd; | |
2598 | enum bfd_architecture arch; | |
2599 | unsigned long machine; | |
2600 | { | |
2601 | unsigned dummy1; | |
2602 | unsigned short dummy2; | |
2603 | ||
2604 | if (! bfd_default_set_arch_mach (abfd, arch, machine)) | |
2605 | return false; | |
2606 | ||
2607 | if (arch != bfd_arch_unknown && | |
2608 | coff_set_flags (abfd, &dummy1, &dummy2) != true) | |
2609 | return false; /* We can't represent this type */ | |
2610 | ||
2611 | return true; /* We're easy ... */ | |
2612 | } | |
2613 | ||
75cc7189 ILT |
2614 | #ifdef COFF_IMAGE_WITH_PE |
2615 | ||
2616 | /* This is used to sort sections by VMA, as required by PE image | |
2617 | files. */ | |
2618 | ||
2619 | static int sort_by_secaddr PARAMS ((const PTR, const PTR)); | |
2620 | ||
2621 | static int | |
2622 | sort_by_secaddr (arg1, arg2) | |
2623 | const PTR arg1; | |
2624 | const PTR arg2; | |
2625 | { | |
2626 | const asection *a = *(const asection **) arg1; | |
2627 | const asection *b = *(const asection **) arg2; | |
2628 | ||
2629 | if (a->vma < b->vma) | |
2630 | return -1; | |
2631 | else if (a->vma > b->vma) | |
2632 | return 1; | |
2633 | else | |
2634 | return 0; | |
2635 | } | |
2636 | ||
2637 | #endif /* COFF_IMAGE_WITH_PE */ | |
252b5132 RH |
2638 | |
2639 | /* Calculate the file position for each section. */ | |
2640 | ||
2641 | #ifndef I960 | |
2642 | #define ALIGN_SECTIONS_IN_FILE | |
2643 | #endif | |
2644 | #ifdef TIC80COFF | |
2645 | #undef ALIGN_SECTIONS_IN_FILE | |
2646 | #endif | |
2647 | ||
2648 | static boolean | |
2649 | coff_compute_section_file_positions (abfd) | |
2650 | bfd * abfd; | |
2651 | { | |
2652 | asection *current; | |
2653 | asection *previous = (asection *) NULL; | |
6b3b007b | 2654 | file_ptr sofar = bfd_coff_filhsz (abfd); |
252b5132 | 2655 | boolean align_adjust; |
252b5132 RH |
2656 | #ifdef ALIGN_SECTIONS_IN_FILE |
2657 | file_ptr old_sofar; | |
2658 | #endif | |
2659 | ||
2660 | #ifdef RS6000COFF_C | |
2661 | /* On XCOFF, if we have symbols, set up the .debug section. */ | |
2662 | if (bfd_get_symcount (abfd) > 0) | |
2663 | { | |
2664 | bfd_size_type sz; | |
2665 | bfd_size_type i, symcount; | |
2666 | asymbol **symp; | |
2667 | ||
2668 | sz = 0; | |
2669 | symcount = bfd_get_symcount (abfd); | |
2670 | for (symp = abfd->outsymbols, i = 0; i < symcount; symp++, i++) | |
2671 | { | |
2672 | coff_symbol_type *cf; | |
2673 | ||
2674 | cf = coff_symbol_from (abfd, *symp); | |
2675 | if (cf != NULL | |
2676 | && cf->native != NULL | |
2677 | && SYMNAME_IN_DEBUG (&cf->native->u.syment)) | |
2678 | { | |
2679 | size_t len; | |
2680 | ||
2681 | len = strlen (bfd_asymbol_name (*symp)); | |
2682 | if (len > SYMNMLEN) | |
2683 | sz += len + 3; | |
2684 | } | |
2685 | } | |
2686 | if (sz > 0) | |
2687 | { | |
2688 | asection *dsec; | |
2689 | ||
2690 | dsec = bfd_make_section_old_way (abfd, ".debug"); | |
2691 | if (dsec == NULL) | |
2692 | abort (); | |
2693 | dsec->_raw_size = sz; | |
2694 | dsec->flags |= SEC_HAS_CONTENTS; | |
2695 | } | |
2696 | } | |
2697 | #endif | |
2698 | ||
2699 | #ifdef COFF_IMAGE_WITH_PE | |
2700 | int page_size; | |
2701 | if (coff_data (abfd)->link_info) | |
2702 | { | |
2703 | page_size = pe_data (abfd)->pe_opthdr.FileAlignment; | |
2704 | } | |
2705 | else | |
2706 | page_size = PE_DEF_FILE_ALIGNMENT; | |
2707 | #else | |
2708 | #ifdef COFF_PAGE_SIZE | |
2709 | int page_size = COFF_PAGE_SIZE; | |
2710 | #endif | |
2711 | #endif | |
2712 | ||
2713 | if (bfd_get_start_address (abfd)) | |
2714 | { | |
2715 | /* A start address may have been added to the original file. In this | |
2716 | case it will need an optional header to record it. */ | |
2717 | abfd->flags |= EXEC_P; | |
2718 | } | |
2719 | ||
2720 | if (abfd->flags & EXEC_P) | |
6b3b007b | 2721 | sofar += bfd_coff_aoutsz (abfd); |
252b5132 RH |
2722 | #ifdef RS6000COFF_C |
2723 | else if (xcoff_data (abfd)->full_aouthdr) | |
6b3b007b | 2724 | sofar += bfd_coff_aoutsz (abfd); |
252b5132 RH |
2725 | else |
2726 | sofar += SMALL_AOUTSZ; | |
2727 | #endif | |
2728 | ||
6b3b007b | 2729 | sofar += abfd->section_count * bfd_coff_scnhsz (abfd); |
252b5132 RH |
2730 | |
2731 | #ifdef RS6000COFF_C | |
2732 | /* XCOFF handles overflows in the reloc and line number count fields | |
2733 | by allocating a new section header to hold the correct counts. */ | |
2734 | for (current = abfd->sections; current != NULL; current = current->next) | |
2735 | if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff) | |
6b3b007b | 2736 | sofar += bfd_coff_scnhsz (abfd); |
252b5132 RH |
2737 | #endif |
2738 | ||
75cc7189 ILT |
2739 | #ifdef COFF_IMAGE_WITH_PE |
2740 | { | |
2741 | /* PE requires the sections to be in memory order when listed in | |
2742 | the section headers. It also does not like empty loadable | |
2743 | sections. The sections apparently do not have to be in the | |
2744 | right order in the image file itself, but we do need to get the | |
2745 | target_index values right. */ | |
2746 | ||
2747 | int count; | |
2748 | asection **section_list; | |
2749 | int i; | |
2750 | int target_index; | |
2751 | ||
2752 | count = 0; | |
2753 | for (current = abfd->sections; current != NULL; current = current->next) | |
2754 | ++count; | |
2755 | ||
2756 | /* We allocate an extra cell to simplify the final loop. */ | |
2757 | section_list = bfd_malloc (sizeof (struct asection *) * (count + 1)); | |
2758 | if (section_list == NULL) | |
2759 | return false; | |
2760 | ||
2761 | i = 0; | |
2762 | for (current = abfd->sections; current != NULL; current = current->next) | |
2763 | { | |
2764 | section_list[i] = current; | |
2765 | ++i; | |
2766 | } | |
2767 | section_list[i] = NULL; | |
2768 | ||
2769 | qsort (section_list, count, sizeof (asection *), sort_by_secaddr); | |
2770 | ||
2771 | /* Rethread the linked list into sorted order; at the same time, | |
2772 | assign target_index values. */ | |
2773 | target_index = 1; | |
2774 | abfd->sections = section_list[0]; | |
2775 | for (i = 0; i < count; i++) | |
2776 | { | |
2777 | current = section_list[i]; | |
2778 | current->next = section_list[i + 1]; | |
2779 | ||
2780 | /* Later, if the section has zero size, we'll be throwing it | |
2781 | away, so we don't want to number it now. Note that having | |
2782 | a zero size and having real contents are different | |
2783 | concepts: .bss has no contents, but (usually) non-zero | |
2784 | size. */ | |
2785 | if (current->_raw_size == 0) | |
2786 | { | |
2787 | /* Discard. However, it still might have (valid) symbols | |
2788 | in it, so arbitrarily set it to section 1 (indexing is | |
2789 | 1-based here; usually .text). __end__ and other | |
2790 | contents of .endsection really have this happen. | |
2791 | FIXME: This seems somewhat dubious. */ | |
2792 | current->target_index = 1; | |
2793 | } | |
2794 | else | |
2795 | current->target_index = target_index++; | |
2796 | } | |
2797 | ||
2fca4467 | 2798 | free (section_list); |
75cc7189 ILT |
2799 | } |
2800 | #else /* ! COFF_IMAGE_WITH_PE */ | |
2801 | { | |
2802 | /* Set the target_index field. */ | |
2803 | int target_index; | |
2804 | ||
2805 | target_index = 1; | |
2806 | for (current = abfd->sections; current != NULL; current = current->next) | |
2807 | current->target_index = target_index++; | |
2808 | } | |
2809 | #endif /* ! COFF_IMAGE_WITH_PE */ | |
2810 | ||
252b5132 | 2811 | align_adjust = false; |
75cc7189 | 2812 | for (current = abfd->sections; |
252b5132 | 2813 | current != (asection *) NULL; |
75cc7189 | 2814 | current = current->next) |
252b5132 RH |
2815 | { |
2816 | #ifdef COFF_IMAGE_WITH_PE | |
75cc7189 ILT |
2817 | /* With PE we have to pad each section to be a multiple of its |
2818 | page size too, and remember both sizes. */ | |
2819 | if (coff_section_data (abfd, current) == NULL) | |
252b5132 | 2820 | { |
75cc7189 ILT |
2821 | current->used_by_bfd = |
2822 | (PTR) bfd_zalloc (abfd, sizeof (struct coff_section_tdata)); | |
2823 | if (current->used_by_bfd == NULL) | |
2824 | return false; | |
252b5132 | 2825 | } |
75cc7189 ILT |
2826 | if (pei_section_data (abfd, current) == NULL) |
2827 | { | |
2828 | coff_section_data (abfd, current)->tdata = | |
2829 | (PTR) bfd_zalloc (abfd, sizeof (struct pei_section_tdata)); | |
2830 | if (coff_section_data (abfd, current)->tdata == NULL) | |
2831 | return false; | |
2832 | } | |
2833 | if (pei_section_data (abfd, current)->virt_size == 0) | |
2834 | pei_section_data (abfd, current)->virt_size = current->_raw_size; | |
252b5132 RH |
2835 | #endif |
2836 | ||
75cc7189 | 2837 | /* Only deal with sections which have contents. */ |
252b5132 RH |
2838 | if (!(current->flags & SEC_HAS_CONTENTS)) |
2839 | continue; | |
2840 | ||
75cc7189 ILT |
2841 | #ifdef COFF_IMAGE_WITH_PE |
2842 | /* Make sure we skip empty sections in a PE image. */ | |
2843 | if (current->_raw_size == 0) | |
2844 | continue; | |
2845 | #endif | |
2846 | ||
252b5132 RH |
2847 | /* Align the sections in the file to the same boundary on |
2848 | which they are aligned in virtual memory. I960 doesn't | |
2849 | do this (FIXME) so we can stay in sync with Intel. 960 | |
2850 | doesn't yet page from files... */ | |
2851 | #ifdef ALIGN_SECTIONS_IN_FILE | |
2852 | if ((abfd->flags & EXEC_P) != 0) | |
2853 | { | |
2854 | /* make sure this section is aligned on the right boundary - by | |
2855 | padding the previous section up if necessary */ | |
2856 | ||
2857 | old_sofar = sofar; | |
2858 | sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); | |
2859 | if (previous != (asection *) NULL) | |
2860 | { | |
2861 | previous->_raw_size += sofar - old_sofar; | |
2862 | } | |
2863 | } | |
2864 | ||
2865 | #endif | |
2866 | ||
2867 | /* In demand paged files the low order bits of the file offset | |
2868 | must match the low order bits of the virtual address. */ | |
2869 | #ifdef COFF_PAGE_SIZE | |
2870 | if ((abfd->flags & D_PAGED) != 0 | |
2871 | && (current->flags & SEC_ALLOC) != 0) | |
2872 | sofar += (current->vma - sofar) % page_size; | |
2873 | #endif | |
2874 | current->filepos = sofar; | |
2875 | ||
2876 | #ifdef COFF_IMAGE_WITH_PE | |
75cc7189 | 2877 | /* Set the padded size. */ |
252b5132 RH |
2878 | current->_raw_size = (current->_raw_size + page_size -1) & -page_size; |
2879 | #endif | |
2880 | ||
2881 | sofar += current->_raw_size; | |
2882 | ||
2883 | #ifdef ALIGN_SECTIONS_IN_FILE | |
2884 | /* make sure that this section is of the right size too */ | |
2885 | if ((abfd->flags & EXEC_P) == 0) | |
2886 | { | |
2887 | bfd_size_type old_size; | |
2888 | ||
2889 | old_size = current->_raw_size; | |
2890 | current->_raw_size = BFD_ALIGN (current->_raw_size, | |
2891 | 1 << current->alignment_power); | |
2892 | align_adjust = current->_raw_size != old_size; | |
2893 | sofar += current->_raw_size - old_size; | |
2894 | } | |
2895 | else | |
2896 | { | |
2897 | old_sofar = sofar; | |
2898 | sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); | |
2899 | align_adjust = sofar != old_sofar; | |
2900 | current->_raw_size += sofar - old_sofar; | |
2901 | } | |
2902 | #endif | |
2903 | ||
2904 | #ifdef COFF_IMAGE_WITH_PE | |
2905 | /* For PE we need to make sure we pad out to the aligned | |
2906 | _raw_size, in case the caller only writes out data to the | |
2907 | unaligned _raw_size. */ | |
2908 | if (pei_section_data (abfd, current)->virt_size < current->_raw_size) | |
2909 | align_adjust = true; | |
2910 | #endif | |
2911 | ||
2912 | #ifdef _LIB | |
2913 | /* Force .lib sections to start at zero. The vma is then | |
2914 | incremented in coff_set_section_contents. This is right for | |
2915 | SVR3.2. */ | |
2916 | if (strcmp (current->name, _LIB) == 0) | |
2917 | bfd_set_section_vma (abfd, current, 0); | |
2918 | #endif | |
2919 | ||
2920 | previous = current; | |
2921 | } | |
2922 | ||
2923 | /* It is now safe to write to the output file. If we needed an | |
2924 | alignment adjustment for the last section, then make sure that | |
2925 | there is a byte at offset sofar. If there are no symbols and no | |
2926 | relocs, then nothing follows the last section. If we don't force | |
2927 | the last byte out, then the file may appear to be truncated. */ | |
2928 | if (align_adjust) | |
2929 | { | |
2930 | bfd_byte b; | |
2931 | ||
2932 | b = 0; | |
2933 | if (bfd_seek (abfd, sofar - 1, SEEK_SET) != 0 | |
2934 | || bfd_write (&b, 1, 1, abfd) != 1) | |
2935 | return false; | |
2936 | } | |
2937 | ||
2938 | /* Make sure the relocations are aligned. We don't need to make | |
2939 | sure that this byte exists, because it will only matter if there | |
2940 | really are relocs. */ | |
2941 | sofar = BFD_ALIGN (sofar, 1 << COFF_DEFAULT_SECTION_ALIGNMENT_POWER); | |
2942 | ||
2943 | obj_relocbase (abfd) = sofar; | |
2944 | abfd->output_has_begun = true; | |
2945 | ||
2946 | return true; | |
2947 | } | |
2948 | ||
2949 | #if 0 | |
2950 | ||
2951 | /* This can never work, because it is called too late--after the | |
2952 | section positions have been set. I can't figure out what it is | |
2953 | for, so I am going to disable it--Ian Taylor 20 March 1996. */ | |
2954 | ||
2955 | /* If .file, .text, .data, .bss symbols are missing, add them. */ | |
2956 | /* @@ Should we only be adding missing symbols, or overriding the aux | |
2957 | values for existing section symbols? */ | |
2958 | static boolean | |
2959 | coff_add_missing_symbols (abfd) | |
2960 | bfd *abfd; | |
2961 | { | |
2962 | unsigned int nsyms = bfd_get_symcount (abfd); | |
2963 | asymbol **sympp = abfd->outsymbols; | |
2964 | asymbol **sympp2; | |
2965 | unsigned int i; | |
2966 | int need_text = 1, need_data = 1, need_bss = 1, need_file = 1; | |
2967 | ||
2968 | for (i = 0; i < nsyms; i++) | |
2969 | { | |
2970 | coff_symbol_type *csym = coff_symbol_from (abfd, sympp[i]); | |
2971 | CONST char *name; | |
2972 | if (csym) | |
2973 | { | |
2974 | /* only do this if there is a coff representation of the input | |
2975 | symbol */ | |
2976 | if (csym->native && csym->native->u.syment.n_sclass == C_FILE) | |
2977 | { | |
2978 | need_file = 0; | |
2979 | continue; | |
2980 | } | |
2981 | name = csym->symbol.name; | |
2982 | if (!name) | |
2983 | continue; | |
2984 | if (!strcmp (name, _TEXT)) | |
2985 | need_text = 0; | |
2986 | #ifdef APOLLO_M68 | |
2987 | else if (!strcmp (name, ".wtext")) | |
2988 | need_text = 0; | |
2989 | #endif | |
2990 | else if (!strcmp (name, _DATA)) | |
2991 | need_data = 0; | |
2992 | else if (!strcmp (name, _BSS)) | |
2993 | need_bss = 0; | |
2994 | } | |
2995 | } | |
2996 | /* Now i == bfd_get_symcount (abfd). */ | |
2997 | /* @@ For now, don't deal with .file symbol. */ | |
2998 | need_file = 0; | |
2999 | ||
3000 | if (!need_text && !need_data && !need_bss && !need_file) | |
3001 | return true; | |
3002 | nsyms += need_text + need_data + need_bss + need_file; | |
3003 | sympp2 = (asymbol **) bfd_alloc (abfd, nsyms * sizeof (asymbol *)); | |
3004 | if (!sympp2) | |
3005 | return false; | |
3006 | memcpy (sympp2, sympp, i * sizeof (asymbol *)); | |
3007 | if (need_file) | |
3008 | { | |
3009 | /* @@ Generate fake .file symbol, in sympp2[i], and increment i. */ | |
3010 | abort (); | |
3011 | } | |
3012 | if (need_text) | |
3013 | sympp2[i++] = coff_section_symbol (abfd, _TEXT); | |
3014 | if (need_data) | |
3015 | sympp2[i++] = coff_section_symbol (abfd, _DATA); | |
3016 | if (need_bss) | |
3017 | sympp2[i++] = coff_section_symbol (abfd, _BSS); | |
3018 | BFD_ASSERT (i == nsyms); | |
3019 | bfd_set_symtab (abfd, sympp2, nsyms); | |
3020 | return true; | |
3021 | } | |
3022 | ||
3023 | #endif /* 0 */ | |
3024 | ||
3025 | /* SUPPRESS 558 */ | |
3026 | /* SUPPRESS 529 */ | |
3027 | static boolean | |
3028 | coff_write_object_contents (abfd) | |
3029 | bfd * abfd; | |
3030 | { | |
3031 | asection *current; | |
3032 | boolean hasrelocs = false; | |
3033 | boolean haslinno = false; | |
4cfec37b | 3034 | boolean hasdebug = false; |
252b5132 RH |
3035 | file_ptr scn_base; |
3036 | file_ptr reloc_base; | |
3037 | file_ptr lineno_base; | |
3038 | file_ptr sym_base; | |
3039 | unsigned long reloc_size = 0; | |
3040 | unsigned long lnno_size = 0; | |
3041 | boolean long_section_names; | |
3042 | asection *text_sec = NULL; | |
3043 | asection *data_sec = NULL; | |
3044 | asection *bss_sec = NULL; | |
3045 | struct internal_filehdr internal_f; | |
3046 | struct internal_aouthdr internal_a; | |
3047 | #ifdef COFF_LONG_SECTION_NAMES | |
3048 | size_t string_size = STRING_SIZE_SIZE; | |
3049 | #endif | |
3050 | ||
3051 | bfd_set_error (bfd_error_system_call); | |
3052 | ||
3053 | /* Make a pass through the symbol table to count line number entries and | |
3054 | put them into the correct asections */ | |
3055 | ||
6b3b007b | 3056 | lnno_size = coff_count_linenumbers (abfd) * bfd_coff_linesz (abfd); |
252b5132 RH |
3057 | |
3058 | if (abfd->output_has_begun == false) | |
3059 | { | |
3060 | if (! coff_compute_section_file_positions (abfd)) | |
3061 | return false; | |
3062 | } | |
3063 | ||
3064 | reloc_base = obj_relocbase (abfd); | |
3065 | ||
3066 | /* Work out the size of the reloc and linno areas */ | |
3067 | ||
3068 | for (current = abfd->sections; current != NULL; current = | |
3069 | current->next) | |
6b3b007b | 3070 | reloc_size += current->reloc_count * bfd_coff_relsz (abfd); |
252b5132 RH |
3071 | |
3072 | lineno_base = reloc_base + reloc_size; | |
3073 | sym_base = lineno_base + lnno_size; | |
3074 | ||
3075 | /* Indicate in each section->line_filepos its actual file address */ | |
3076 | for (current = abfd->sections; current != NULL; current = | |
3077 | current->next) | |
3078 | { | |
3079 | if (current->lineno_count) | |
3080 | { | |
3081 | current->line_filepos = lineno_base; | |
3082 | current->moving_line_filepos = lineno_base; | |
6b3b007b | 3083 | lineno_base += current->lineno_count * bfd_coff_linesz (abfd); |
252b5132 RH |
3084 | } |
3085 | else | |
3086 | { | |
3087 | current->line_filepos = 0; | |
3088 | } | |
3089 | if (current->reloc_count) | |
3090 | { | |
3091 | current->rel_filepos = reloc_base; | |
6b3b007b | 3092 | reloc_base += current->reloc_count * bfd_coff_relsz (abfd); |
252b5132 RH |
3093 | } |
3094 | else | |
3095 | { | |
3096 | current->rel_filepos = 0; | |
3097 | } | |
3098 | } | |
3099 | ||
3100 | /* Write section headers to the file. */ | |
3101 | internal_f.f_nscns = 0; | |
3102 | ||
3103 | if ((abfd->flags & EXEC_P) != 0) | |
6b3b007b | 3104 | scn_base = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd); |
252b5132 RH |
3105 | else |
3106 | { | |
6b3b007b | 3107 | scn_base = bfd_coff_filhsz (abfd); |
252b5132 RH |
3108 | #ifdef RS6000COFF_C |
3109 | if (xcoff_data (abfd)->full_aouthdr) | |
6b3b007b | 3110 | scn_base += bfd_coff_aoutsz (abfd); |
252b5132 RH |
3111 | else |
3112 | scn_base += SMALL_AOUTSZ; | |
3113 | #endif | |
3114 | } | |
3115 | ||
3116 | if (bfd_seek (abfd, scn_base, SEEK_SET) != 0) | |
3117 | return false; | |
3118 | ||
3119 | long_section_names = false; | |
3120 | for (current = abfd->sections; | |
3121 | current != NULL; | |
3122 | current = current->next) | |
3123 | { | |
3124 | struct internal_scnhdr section; | |
4cfec37b | 3125 | boolean is_reloc_section = false; |
252b5132 RH |
3126 | |
3127 | #ifdef COFF_IMAGE_WITH_PE | |
3128 | if (strcmp (current->name, ".reloc") == 0) | |
3129 | { | |
4cfec37b ILT |
3130 | is_reloc_section = true; |
3131 | hasrelocs = true; | |
252b5132 RH |
3132 | pe_data (abfd)->has_reloc_section = 1; |
3133 | } | |
3134 | #endif | |
3135 | ||
252b5132 RH |
3136 | internal_f.f_nscns++; |
3137 | ||
3138 | strncpy (section.s_name, current->name, SCNNMLEN); | |
3139 | ||
3140 | #ifdef COFF_LONG_SECTION_NAMES | |
3141 | /* Handle long section names as in PE. This must be compatible | |
00692651 | 3142 | with the code in coff_write_symbols and _bfd_coff_final_link. */ |
252b5132 RH |
3143 | { |
3144 | size_t len; | |
3145 | ||
3146 | len = strlen (current->name); | |
3147 | if (len > SCNNMLEN) | |
3148 | { | |
3149 | memset (section.s_name, 0, SCNNMLEN); | |
3150 | sprintf (section.s_name, "/%lu", (unsigned long) string_size); | |
3151 | string_size += len + 1; | |
3152 | long_section_names = true; | |
3153 | } | |
3154 | } | |
3155 | #endif | |
3156 | ||
3157 | #ifdef _LIB | |
3158 | /* Always set s_vaddr of .lib to 0. This is right for SVR3.2 | |
3159 | Ian Taylor <ian@cygnus.com>. */ | |
3160 | if (strcmp (current->name, _LIB) == 0) | |
3161 | section.s_vaddr = 0; | |
3162 | else | |
3163 | #endif | |
3164 | section.s_vaddr = current->vma; | |
3165 | section.s_paddr = current->lma; | |
3166 | section.s_size = current->_raw_size; | |
3167 | ||
3168 | #ifdef COFF_WITH_PE | |
3169 | section.s_paddr = 0; | |
3170 | #endif | |
3171 | #ifdef COFF_IMAGE_WITH_PE | |
3172 | /* Reminder: s_paddr holds the virtual size of the section. */ | |
3173 | if (coff_section_data (abfd, current) != NULL | |
3174 | && pei_section_data (abfd, current) != NULL) | |
3175 | section.s_paddr = pei_section_data (abfd, current)->virt_size; | |
3176 | else | |
3177 | section.s_paddr = 0; | |
3178 | #endif | |
3179 | ||
3180 | /* | |
3181 | If this section has no size or is unloadable then the scnptr | |
3182 | will be 0 too | |
3183 | */ | |
3184 | if (current->_raw_size == 0 || | |
3185 | (current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
3186 | { | |
3187 | section.s_scnptr = 0; | |
3188 | } | |
3189 | else | |
3190 | { | |
3191 | section.s_scnptr = current->filepos; | |
3192 | } | |
3193 | section.s_relptr = current->rel_filepos; | |
3194 | section.s_lnnoptr = current->line_filepos; | |
3195 | section.s_nreloc = current->reloc_count; | |
3196 | section.s_nlnno = current->lineno_count; | |
79207490 ILT |
3197 | #ifndef COFF_IMAGE_WITH_PE |
3198 | /* In PEI, relocs come in the .reloc section. */ | |
252b5132 RH |
3199 | if (current->reloc_count != 0) |
3200 | hasrelocs = true; | |
79207490 | 3201 | #endif |
252b5132 RH |
3202 | if (current->lineno_count != 0) |
3203 | haslinno = true; | |
4cfec37b ILT |
3204 | if ((current->flags & SEC_DEBUGGING) != 0 |
3205 | && ! is_reloc_section) | |
3206 | hasdebug = true; | |
252b5132 RH |
3207 | |
3208 | #ifdef RS6000COFF_C | |
3209 | /* Indicate the use of an XCOFF overflow section header. */ | |
3210 | if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff) | |
3211 | { | |
3212 | section.s_nreloc = 0xffff; | |
3213 | section.s_nlnno = 0xffff; | |
3214 | } | |
3215 | #endif | |
3216 | ||
3217 | section.s_flags = sec_to_styp_flags (current->name, current->flags); | |
3218 | ||
3219 | if (!strcmp (current->name, _TEXT)) | |
3220 | { | |
3221 | text_sec = current; | |
3222 | } | |
3223 | else if (!strcmp (current->name, _DATA)) | |
3224 | { | |
3225 | data_sec = current; | |
3226 | } | |
3227 | else if (!strcmp (current->name, _BSS)) | |
3228 | { | |
3229 | bss_sec = current; | |
3230 | } | |
3231 | ||
3232 | #ifdef I960 | |
3233 | section.s_align = (current->alignment_power | |
3234 | ? 1 << current->alignment_power | |
3235 | : 0); | |
3236 | #else | |
3237 | #ifdef TIC80COFF | |
3238 | section.s_flags |= (current->alignment_power & 0xF) << 8; | |
3239 | #endif | |
3240 | #endif | |
3241 | ||
3242 | #ifdef COFF_IMAGE_WITH_PE | |
00692651 ILT |
3243 | /* Suppress output of the sections if they are null. ld |
3244 | includes the bss and data sections even if there is no size | |
3245 | assigned to them. NT loader doesn't like it if these section | |
3246 | headers are included if the sections themselves are not | |
3247 | needed. See also coff_compute_section_file_positions. */ | |
252b5132 RH |
3248 | if (section.s_size == 0) |
3249 | internal_f.f_nscns--; | |
3250 | else | |
3251 | #endif | |
3252 | { | |
3253 | SCNHDR buff; | |
3254 | if (coff_swap_scnhdr_out (abfd, §ion, &buff) == 0 | |
6b3b007b NC |
3255 | || bfd_write ((PTR) (&buff), 1, bfd_coff_scnhsz (abfd), abfd) |
3256 | != bfd_coff_scnhsz (abfd)) | |
252b5132 RH |
3257 | return false; |
3258 | } | |
3259 | ||
3260 | #ifdef COFF_WITH_PE | |
3261 | /* PE stores COMDAT section information in the symbol table. If | |
3262 | this section is supposed to have some COMDAT info, track down | |
3263 | the symbol in the symbol table and modify it. */ | |
3264 | if ((current->flags & SEC_LINK_ONCE) != 0) | |
3265 | { | |
3266 | unsigned int i, count; | |
3267 | asymbol **psym; | |
3268 | coff_symbol_type *csym = NULL; | |
3269 | asymbol **psymsec; | |
3270 | ||
3271 | psymsec = NULL; | |
3272 | count = bfd_get_symcount (abfd); | |
3273 | for (i = 0, psym = abfd->outsymbols; i < count; i++, psym++) | |
3274 | { | |
3275 | if ((*psym)->section != current) | |
3276 | continue; | |
3277 | ||
3278 | /* Remember the location of the first symbol in this | |
3279 | section. */ | |
3280 | if (psymsec == NULL) | |
3281 | psymsec = psym; | |
3282 | ||
3283 | /* See if this is the section symbol. */ | |
3284 | if (strcmp ((*psym)->name, current->name) == 0) | |
3285 | { | |
3286 | csym = coff_symbol_from (abfd, *psym); | |
3287 | if (csym == NULL | |
3288 | || csym->native == NULL | |
3289 | || csym->native->u.syment.n_numaux < 1 | |
3290 | || csym->native->u.syment.n_sclass != C_STAT | |
3291 | || csym->native->u.syment.n_type != T_NULL) | |
3292 | continue; | |
3293 | ||
3294 | /* Here *PSYM is the section symbol for CURRENT. */ | |
3295 | ||
3296 | break; | |
3297 | } | |
3298 | } | |
3299 | ||
3300 | /* Did we find it? | |
3301 | Note that we might not if we're converting the file from | |
3302 | some other object file format. */ | |
3303 | if (i < count) | |
3304 | { | |
3305 | combined_entry_type *aux; | |
3306 | ||
3307 | /* We don't touch the x_checksum field. The | |
3308 | x_associated field is not currently supported. */ | |
3309 | ||
3310 | aux = csym->native + 1; | |
3311 | switch (current->flags & SEC_LINK_DUPLICATES) | |
3312 | { | |
3313 | case SEC_LINK_DUPLICATES_DISCARD: | |
3314 | aux->u.auxent.x_scn.x_comdat = IMAGE_COMDAT_SELECT_ANY; | |
3315 | break; | |
3316 | ||
3317 | case SEC_LINK_DUPLICATES_ONE_ONLY: | |
3318 | aux->u.auxent.x_scn.x_comdat = | |
3319 | IMAGE_COMDAT_SELECT_NODUPLICATES; | |
3320 | break; | |
3321 | ||
3322 | case SEC_LINK_DUPLICATES_SAME_SIZE: | |
3323 | aux->u.auxent.x_scn.x_comdat = | |
3324 | IMAGE_COMDAT_SELECT_SAME_SIZE; | |
3325 | break; | |
3326 | ||
3327 | case SEC_LINK_DUPLICATES_SAME_CONTENTS: | |
3328 | aux->u.auxent.x_scn.x_comdat = | |
3329 | IMAGE_COMDAT_SELECT_EXACT_MATCH; | |
3330 | break; | |
3331 | } | |
3332 | ||
3333 | /* The COMDAT symbol must be the first symbol from this | |
3334 | section in the symbol table. In order to make this | |
3335 | work, we move the COMDAT symbol before the first | |
3336 | symbol we found in the search above. It's OK to | |
3337 | rearrange the symbol table at this point, because | |
3338 | coff_renumber_symbols is going to rearrange it | |
3339 | further and fix up all the aux entries. */ | |
3340 | if (psym != psymsec) | |
3341 | { | |
3342 | asymbol *hold; | |
3343 | asymbol **pcopy; | |
3344 | ||
3345 | hold = *psym; | |
3346 | for (pcopy = psym; pcopy > psymsec; pcopy--) | |
3347 | pcopy[0] = pcopy[-1]; | |
3348 | *psymsec = hold; | |
3349 | } | |
3350 | } | |
3351 | } | |
3352 | #endif /* COFF_WITH_PE */ | |
3353 | } | |
3354 | ||
3355 | #ifdef RS6000COFF_C | |
3356 | /* XCOFF handles overflows in the reloc and line number count fields | |
3357 | by creating a new section header to hold the correct values. */ | |
3358 | for (current = abfd->sections; current != NULL; current = current->next) | |
3359 | { | |
3360 | if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff) | |
3361 | { | |
3362 | struct internal_scnhdr scnhdr; | |
3363 | SCNHDR buff; | |
3364 | ||
3365 | internal_f.f_nscns++; | |
3366 | strncpy (&(scnhdr.s_name[0]), current->name, 8); | |
3367 | scnhdr.s_paddr = current->reloc_count; | |
3368 | scnhdr.s_vaddr = current->lineno_count; | |
3369 | scnhdr.s_size = 0; | |
3370 | scnhdr.s_scnptr = 0; | |
3371 | scnhdr.s_relptr = current->rel_filepos; | |
3372 | scnhdr.s_lnnoptr = current->line_filepos; | |
3373 | scnhdr.s_nreloc = current->target_index; | |
3374 | scnhdr.s_nlnno = current->target_index; | |
3375 | scnhdr.s_flags = STYP_OVRFLO; | |
3376 | if (coff_swap_scnhdr_out (abfd, &scnhdr, &buff) == 0 | |
6b3b007b NC |
3377 | || bfd_write ((PTR) &buff, 1, bfd_coff_scnhsz (abfd), abfd) |
3378 | != bfd_coff_scnhsz (abfd)) | |
252b5132 RH |
3379 | return false; |
3380 | } | |
3381 | } | |
3382 | #endif | |
3383 | ||
3384 | /* OK, now set up the filehdr... */ | |
3385 | ||
3386 | /* Don't include the internal abs section in the section count */ | |
3387 | ||
3388 | /* | |
3389 | We will NOT put a fucking timestamp in the header here. Every time you | |
3390 | put it back, I will come in and take it out again. I'm sorry. This | |
3391 | field does not belong here. We fill it with a 0 so it compares the | |
3392 | same but is not a reasonable time. -- gnu@cygnus.com | |
3393 | */ | |
3394 | internal_f.f_timdat = 0; | |
3395 | ||
3396 | internal_f.f_flags = 0; | |
3397 | ||
3398 | if (abfd->flags & EXEC_P) | |
6b3b007b | 3399 | internal_f.f_opthdr = bfd_coff_aoutsz (abfd); |
252b5132 RH |
3400 | else |
3401 | { | |
3402 | internal_f.f_opthdr = 0; | |
3403 | #ifdef RS6000COFF_C | |
3404 | if (xcoff_data (abfd)->full_aouthdr) | |
6b3b007b | 3405 | internal_f.f_opthdr = bfd_coff_aoutsz (abfd); |
252b5132 RH |
3406 | else |
3407 | internal_f.f_opthdr = SMALL_AOUTSZ; | |
3408 | #endif | |
3409 | } | |
3410 | ||
3411 | if (!hasrelocs) | |
3412 | internal_f.f_flags |= F_RELFLG; | |
3413 | if (!haslinno) | |
3414 | internal_f.f_flags |= F_LNNO; | |
3415 | if (abfd->flags & EXEC_P) | |
3416 | internal_f.f_flags |= F_EXEC; | |
4cfec37b ILT |
3417 | #ifdef COFF_IMAGE_WITH_PE |
3418 | if (! hasdebug) | |
3419 | internal_f.f_flags |= IMAGE_FILE_DEBUG_STRIPPED; | |
3420 | #endif | |
252b5132 | 3421 | |
8a1ad8e7 | 3422 | #ifndef COFF_WITH_PE |
252b5132 RH |
3423 | if (bfd_little_endian (abfd)) |
3424 | internal_f.f_flags |= F_AR32WR; | |
3425 | else | |
3426 | internal_f.f_flags |= F_AR32W; | |
8a1ad8e7 | 3427 | #endif |
252b5132 RH |
3428 | |
3429 | #ifdef TIC80_TARGET_ID | |
3430 | internal_f.f_target_id = TIC80_TARGET_ID; | |
3431 | #endif | |
3432 | ||
3433 | /* | |
3434 | FIXME, should do something about the other byte orders and | |
3435 | architectures. | |
3436 | */ | |
3437 | ||
3438 | #ifdef RS6000COFF_C | |
3439 | if ((abfd->flags & DYNAMIC) != 0) | |
3440 | internal_f.f_flags |= F_SHROBJ; | |
3441 | if (bfd_get_section_by_name (abfd, _LOADER) != NULL) | |
3442 | internal_f.f_flags |= F_DYNLOAD; | |
3443 | #endif | |
3444 | ||
3445 | memset (&internal_a, 0, sizeof internal_a); | |
3446 | ||
3447 | /* Set up architecture-dependent stuff */ | |
3448 | ||
3449 | { | |
3450 | unsigned int magic = 0; | |
3451 | unsigned short flags = 0; | |
3452 | coff_set_flags (abfd, &magic, &flags); | |
3453 | internal_f.f_magic = magic; | |
3454 | internal_f.f_flags |= flags; | |
3455 | /* ...and the "opt"hdr... */ | |
3456 | ||
3457 | #ifdef A29K | |
3458 | #ifdef ULTRA3 /* NYU's machine */ | |
3459 | /* FIXME: This is a bogus check. I really want to see if there | |
3460 | * is a .shbss or a .shdata section, if so then set the magic | |
3461 | * number to indicate a shared data executable. | |
3462 | */ | |
3463 | if (internal_f.f_nscns >= 7) | |
3464 | internal_a.magic = SHMAGIC; /* Shared magic */ | |
3465 | else | |
3466 | #endif /* ULTRA3 */ | |
3467 | internal_a.magic = NMAGIC; /* Assume separate i/d */ | |
3468 | #define __A_MAGIC_SET__ | |
3469 | #endif /* A29K */ | |
3470 | #ifdef TIC80COFF | |
3471 | internal_a.magic = TIC80_ARCH_MAGIC; | |
3472 | #define __A_MAGIC_SET__ | |
3473 | #endif /* TIC80 */ | |
3474 | #ifdef I860 | |
3475 | /* FIXME: What are the a.out magic numbers for the i860? */ | |
3476 | internal_a.magic = 0; | |
3477 | #define __A_MAGIC_SET__ | |
3478 | #endif /* I860 */ | |
3479 | #ifdef I960 | |
3480 | internal_a.magic = (magic == I960ROMAGIC ? NMAGIC : OMAGIC); | |
3481 | #define __A_MAGIC_SET__ | |
3482 | #endif /* I960 */ | |
3483 | #if M88 | |
3484 | #define __A_MAGIC_SET__ | |
3485 | internal_a.magic = PAGEMAGICBCS; | |
3486 | #endif /* M88 */ | |
3487 | ||
3488 | #if APOLLO_M68 | |
3489 | #define __A_MAGIC_SET__ | |
3490 | internal_a.magic = APOLLO_COFF_VERSION_NUMBER; | |
3491 | #endif | |
3492 | ||
3493 | #if defined(M68) || defined(WE32K) || defined(M68K) | |
3494 | #define __A_MAGIC_SET__ | |
3495 | #if defined(LYNXOS) | |
3496 | internal_a.magic = LYNXCOFFMAGIC; | |
3497 | #else | |
3498 | #if defined(TARG_AUX) | |
3499 | internal_a.magic = (abfd->flags & D_PAGED ? PAGEMAGICPEXECPAGED : | |
3500 | abfd->flags & WP_TEXT ? PAGEMAGICPEXECSWAPPED : | |
3501 | PAGEMAGICEXECSWAPPED); | |
3502 | #else | |
3503 | #if defined (PAGEMAGICPEXECPAGED) | |
3504 | internal_a.magic = PAGEMAGICPEXECPAGED; | |
3505 | #endif | |
3506 | #endif /* TARG_AUX */ | |
3507 | #endif /* LYNXOS */ | |
3508 | #endif /* M68 || WE32K || M68K */ | |
3509 | ||
3510 | #if defined(ARM) | |
3511 | #define __A_MAGIC_SET__ | |
3512 | internal_a.magic = ZMAGIC; | |
3513 | #endif | |
3514 | ||
3515 | #if defined(PPC_PE) | |
3516 | #define __A_MAGIC_SET__ | |
3517 | internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC; | |
3518 | #endif | |
3519 | ||
3520 | #if defined MCORE_PE | |
3521 | #define __A_MAGIC_SET__ | |
3522 | internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC; | |
3523 | #endif | |
3524 | ||
3525 | #if defined(I386) | |
3526 | #define __A_MAGIC_SET__ | |
3527 | #if defined(LYNXOS) | |
3528 | internal_a.magic = LYNXCOFFMAGIC; | |
3529 | #else /* LYNXOS */ | |
3530 | internal_a.magic = ZMAGIC; | |
3531 | #endif /* LYNXOS */ | |
3532 | #endif /* I386 */ | |
3533 | ||
3534 | #if defined(SPARC) | |
3535 | #define __A_MAGIC_SET__ | |
3536 | #if defined(LYNXOS) | |
3537 | internal_a.magic = LYNXCOFFMAGIC; | |
3538 | #endif /* LYNXOS */ | |
3539 | #endif /* SPARC */ | |
3540 | ||
3541 | #ifdef RS6000COFF_C | |
3542 | #define __A_MAGIC_SET__ | |
3543 | internal_a.magic = (abfd->flags & D_PAGED) ? RS6K_AOUTHDR_ZMAGIC : | |
3544 | (abfd->flags & WP_TEXT) ? RS6K_AOUTHDR_NMAGIC : | |
3545 | RS6K_AOUTHDR_OMAGIC; | |
3546 | #endif | |
3547 | ||
17505c5c NC |
3548 | #if defined(SH) && defined(COFF_WITH_PE) |
3549 | #define __A_MAGIC_SET__ | |
3550 | internal_a.magic = SH_PE_MAGIC; | |
3551 | #endif | |
3552 | ||
3553 | #if defined(MIPS) && defined(COFF_WITH_PE) | |
3554 | #define __A_MAGIC_SET__ | |
3555 | internal_a.magic = MIPS_PE_MAGIC; | |
3556 | #endif | |
3557 | ||
252b5132 RH |
3558 | #ifndef __A_MAGIC_SET__ |
3559 | #include "Your aouthdr magic number is not being set!" | |
3560 | #else | |
3561 | #undef __A_MAGIC_SET__ | |
3562 | #endif | |
3563 | } | |
3564 | ||
3565 | /* FIXME: Does anybody ever set this to another value? */ | |
3566 | internal_a.vstamp = 0; | |
3567 | ||
3568 | /* Now should write relocs, strings, syms */ | |
3569 | obj_sym_filepos (abfd) = sym_base; | |
3570 | ||
3571 | if (bfd_get_symcount (abfd) != 0) | |
3572 | { | |
3573 | int firstundef; | |
3574 | #if 0 | |
3575 | if (!coff_add_missing_symbols (abfd)) | |
3576 | return false; | |
3577 | #endif | |
3578 | if (!coff_renumber_symbols (abfd, &firstundef)) | |
3579 | return false; | |
3580 | coff_mangle_symbols (abfd); | |
3581 | if (! coff_write_symbols (abfd)) | |
3582 | return false; | |
3583 | if (! coff_write_linenumbers (abfd)) | |
3584 | return false; | |
3585 | if (! coff_write_relocs (abfd, firstundef)) | |
3586 | return false; | |
3587 | } | |
3588 | #ifdef COFF_LONG_SECTION_NAMES | |
3589 | else if (long_section_names) | |
3590 | { | |
3591 | /* If we have long section names we have to write out the string | |
3592 | table even if there are no symbols. */ | |
3593 | if (! coff_write_symbols (abfd)) | |
3594 | return false; | |
3595 | } | |
3596 | #endif | |
3597 | #ifdef COFF_IMAGE_WITH_PE | |
3598 | #ifdef PPC_PE | |
3599 | else if ((abfd->flags & EXEC_P) != 0) | |
3600 | { | |
3601 | bfd_byte b; | |
3602 | ||
3603 | /* PowerPC PE appears to require that all executable files be | |
3604 | rounded up to the page size. */ | |
3605 | b = 0; | |
3606 | if (bfd_seek (abfd, | |
3607 | BFD_ALIGN (sym_base, COFF_PAGE_SIZE) - 1, | |
3608 | SEEK_SET) != 0 | |
3609 | || bfd_write (&b, 1, 1, abfd) != 1) | |
3610 | return false; | |
3611 | } | |
3612 | #endif | |
3613 | #endif | |
3614 | ||
3615 | /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF | |
3616 | backend linker, and obj_raw_syment_count is not valid until after | |
3617 | coff_write_symbols is called. */ | |
3618 | if (obj_raw_syment_count (abfd) != 0) | |
3619 | { | |
3620 | internal_f.f_symptr = sym_base; | |
3621 | #ifdef RS6000COFF_C | |
3622 | /* AIX appears to require that F_RELFLG not be set if there are | |
3623 | local symbols but no relocations. */ | |
3624 | internal_f.f_flags &=~ F_RELFLG; | |
3625 | #endif | |
3626 | } | |
3627 | else | |
3628 | { | |
3629 | if (long_section_names) | |
3630 | internal_f.f_symptr = sym_base; | |
3631 | else | |
3632 | internal_f.f_symptr = 0; | |
3633 | internal_f.f_flags |= F_LSYMS; | |
3634 | } | |
3635 | ||
3636 | if (text_sec) | |
3637 | { | |
3638 | internal_a.tsize = bfd_get_section_size_before_reloc (text_sec); | |
3639 | internal_a.text_start = internal_a.tsize ? text_sec->vma : 0; | |
3640 | } | |
3641 | if (data_sec) | |
3642 | { | |
3643 | internal_a.dsize = bfd_get_section_size_before_reloc (data_sec); | |
3644 | internal_a.data_start = internal_a.dsize ? data_sec->vma : 0; | |
3645 | } | |
3646 | if (bss_sec) | |
3647 | { | |
3648 | internal_a.bsize = bfd_get_section_size_before_reloc (bss_sec); | |
3649 | if (internal_a.bsize && bss_sec->vma < internal_a.data_start) | |
3650 | internal_a.data_start = bss_sec->vma; | |
3651 | } | |
3652 | ||
3653 | internal_a.entry = bfd_get_start_address (abfd); | |
3654 | internal_f.f_nsyms = obj_raw_syment_count (abfd); | |
3655 | ||
3656 | #ifdef RS6000COFF_C | |
3657 | if (xcoff_data (abfd)->full_aouthdr) | |
3658 | { | |
3659 | bfd_vma toc; | |
3660 | asection *loader_sec; | |
3661 | ||
3662 | internal_a.vstamp = 1; | |
3663 | ||
3664 | internal_a.o_snentry = xcoff_data (abfd)->snentry; | |
3665 | if (internal_a.o_snentry == 0) | |
3666 | internal_a.entry = (bfd_vma) -1; | |
3667 | ||
3668 | if (text_sec != NULL) | |
3669 | { | |
3670 | internal_a.o_sntext = text_sec->target_index; | |
3671 | internal_a.o_algntext = bfd_get_section_alignment (abfd, text_sec); | |
3672 | } | |
3673 | else | |
3674 | { | |
3675 | internal_a.o_sntext = 0; | |
3676 | internal_a.o_algntext = 0; | |
3677 | } | |
3678 | if (data_sec != NULL) | |
3679 | { | |
3680 | internal_a.o_sndata = data_sec->target_index; | |
3681 | internal_a.o_algndata = bfd_get_section_alignment (abfd, data_sec); | |
3682 | } | |
3683 | else | |
3684 | { | |
3685 | internal_a.o_sndata = 0; | |
3686 | internal_a.o_algndata = 0; | |
3687 | } | |
3688 | loader_sec = bfd_get_section_by_name (abfd, ".loader"); | |
3689 | if (loader_sec != NULL) | |
3690 | internal_a.o_snloader = loader_sec->target_index; | |
3691 | else | |
3692 | internal_a.o_snloader = 0; | |
3693 | if (bss_sec != NULL) | |
3694 | internal_a.o_snbss = bss_sec->target_index; | |
3695 | else | |
3696 | internal_a.o_snbss = 0; | |
3697 | ||
3698 | toc = xcoff_data (abfd)->toc; | |
3699 | internal_a.o_toc = toc; | |
3700 | internal_a.o_sntoc = xcoff_data (abfd)->sntoc; | |
3701 | ||
3702 | internal_a.o_modtype = xcoff_data (abfd)->modtype; | |
3703 | if (xcoff_data (abfd)->cputype != -1) | |
3704 | internal_a.o_cputype = xcoff_data (abfd)->cputype; | |
3705 | else | |
3706 | { | |
3707 | switch (bfd_get_arch (abfd)) | |
3708 | { | |
3709 | case bfd_arch_rs6000: | |
3710 | internal_a.o_cputype = 4; | |
3711 | break; | |
3712 | case bfd_arch_powerpc: | |
3713 | if (bfd_get_mach (abfd) == 0) | |
3714 | internal_a.o_cputype = 3; | |
3715 | else | |
3716 | internal_a.o_cputype = 1; | |
3717 | break; | |
3718 | default: | |
3719 | abort (); | |
3720 | } | |
3721 | } | |
3722 | internal_a.o_maxstack = xcoff_data (abfd)->maxstack; | |
3723 | internal_a.o_maxdata = xcoff_data (abfd)->maxdata; | |
3724 | } | |
3725 | #endif | |
3726 | ||
3727 | /* now write them */ | |
3728 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) | |
3729 | return false; | |
b5f303f0 | 3730 | |
252b5132 | 3731 | { |
b5f303f0 NC |
3732 | char * buff; |
3733 | bfd_size_type amount; | |
3734 | ||
3735 | buff = bfd_malloc (bfd_coff_filhsz (abfd)); | |
3736 | if (buff == NULL) | |
3737 | return false; | |
3738 | ||
252b5132 | 3739 | coff_swap_filehdr_out (abfd, (PTR) & internal_f, (PTR) buff); |
b5f303f0 NC |
3740 | amount = bfd_write ((PTR) buff, 1, bfd_coff_filhsz (abfd), abfd); |
3741 | ||
2fca4467 | 3742 | free (buff); |
b5f303f0 NC |
3743 | |
3744 | if (amount != bfd_coff_filhsz (abfd)) | |
252b5132 RH |
3745 | return false; |
3746 | } | |
b5f303f0 | 3747 | |
252b5132 RH |
3748 | if (abfd->flags & EXEC_P) |
3749 | { | |
3750 | /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR. | |
3751 | include/coff/pe.h sets AOUTSZ == sizeof(PEAOUTHDR)) */ | |
b5f303f0 NC |
3752 | char * buff; |
3753 | bfd_size_type amount; | |
3754 | ||
3755 | buff = bfd_malloc (bfd_coff_aoutsz (abfd)); | |
3756 | if (buff == NULL) | |
3757 | return false; | |
3758 | ||
252b5132 | 3759 | coff_swap_aouthdr_out (abfd, (PTR) & internal_a, (PTR) buff); |
b5f303f0 NC |
3760 | amount = bfd_write ((PTR) buff, 1, bfd_coff_aoutsz (abfd), abfd); |
3761 | ||
2fca4467 | 3762 | free (buff); |
b5f303f0 NC |
3763 | |
3764 | if (amount != bfd_coff_aoutsz (abfd)) | |
252b5132 RH |
3765 | return false; |
3766 | } | |
3767 | #ifdef RS6000COFF_C | |
3768 | else | |
3769 | { | |
3770 | AOUTHDR buff; | |
3771 | size_t size; | |
3772 | ||
3773 | /* XCOFF seems to always write at least a small a.out header. */ | |
3774 | coff_swap_aouthdr_out (abfd, (PTR) &internal_a, (PTR) &buff); | |
3775 | if (xcoff_data (abfd)->full_aouthdr) | |
6b3b007b | 3776 | size = bfd_coff_aoutsz (abfd); |
252b5132 RH |
3777 | else |
3778 | size = SMALL_AOUTSZ; | |
3779 | if (bfd_write ((PTR) &buff, 1, size, abfd) != size) | |
3780 | return false; | |
3781 | } | |
3782 | #endif | |
3783 | ||
3784 | return true; | |
3785 | } | |
3786 | ||
3787 | static boolean | |
3788 | coff_set_section_contents (abfd, section, location, offset, count) | |
3789 | bfd * abfd; | |
3790 | sec_ptr section; | |
3791 | PTR location; | |
3792 | file_ptr offset; | |
3793 | bfd_size_type count; | |
3794 | { | |
3795 | if (abfd->output_has_begun == false) /* set by bfd.c handler */ | |
3796 | { | |
3797 | if (! coff_compute_section_file_positions (abfd)) | |
3798 | return false; | |
3799 | } | |
3800 | ||
3801 | #if defined(_LIB) && !defined(TARG_AUX) | |
3802 | ||
3803 | /* The physical address field of a .lib section is used to hold the | |
3804 | number of shared libraries in the section. This code counts the | |
3805 | number of sections being written, and increments the lma field | |
3806 | with the number. | |
3807 | ||
3808 | I have found no documentation on the contents of this section. | |
3809 | Experimentation indicates that the section contains zero or more | |
3810 | records, each of which has the following structure: | |
3811 | ||
3812 | - a (four byte) word holding the length of this record, in words, | |
3813 | - a word that always seems to be set to "2", | |
3814 | - the path to a shared library, null-terminated and then padded | |
3815 | to a whole word boundary. | |
3816 | ||
3817 | bfd_assert calls have been added to alert if an attempt is made | |
3818 | to write a section which doesn't follow these assumptions. The | |
3819 | code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe | |
3820 | <robertl@arnet.com> (Thanks!). | |
3821 | ||
3822 | Gvran Uddeborg <gvran@uddeborg.pp.se> */ | |
3823 | ||
3824 | if (strcmp (section->name, _LIB) == 0) | |
3825 | { | |
3826 | bfd_byte *rec, *recend; | |
3827 | ||
3828 | rec = (bfd_byte *) location; | |
3829 | recend = rec + count; | |
3830 | while (rec < recend) | |
3831 | { | |
3832 | ++section->lma; | |
3833 | rec += bfd_get_32 (abfd, rec) * 4; | |
3834 | } | |
3835 | ||
3836 | BFD_ASSERT (rec == recend); | |
3837 | } | |
3838 | ||
3839 | #endif | |
3840 | ||
3841 | /* Don't write out bss sections - one way to do this is to | |
3842 | see if the filepos has not been set. */ | |
3843 | if (section->filepos == 0) | |
3844 | return true; | |
3845 | ||
3846 | if (bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET) != 0) | |
3847 | return false; | |
3848 | ||
3849 | if (count != 0) | |
3850 | { | |
3851 | return (bfd_write (location, 1, count, abfd) == count) ? true : false; | |
3852 | } | |
3853 | return true; | |
3854 | } | |
3855 | #if 0 | |
3856 | static boolean | |
3857 | coff_close_and_cleanup (abfd) | |
3858 | bfd *abfd; | |
3859 | { | |
3860 | if (!bfd_read_p (abfd)) | |
3861 | switch (abfd->format) | |
3862 | { | |
3863 | case bfd_archive: | |
3864 | if (!_bfd_write_archive_contents (abfd)) | |
3865 | return false; | |
3866 | break; | |
3867 | case bfd_object: | |
3868 | if (!coff_write_object_contents (abfd)) | |
3869 | return false; | |
3870 | break; | |
3871 | default: | |
3872 | bfd_set_error (bfd_error_invalid_operation); | |
3873 | return false; | |
3874 | } | |
3875 | ||
3876 | /* We depend on bfd_close to free all the memory on the objalloc. */ | |
3877 | return true; | |
3878 | } | |
3879 | ||
3880 | #endif | |
3881 | ||
3882 | static PTR | |
3883 | buy_and_read (abfd, where, seek_direction, size) | |
3884 | bfd *abfd; | |
3885 | file_ptr where; | |
3886 | int seek_direction; | |
3887 | size_t size; | |
3888 | { | |
3889 | PTR area = (PTR) bfd_alloc (abfd, size); | |
3890 | if (!area) | |
3891 | return (NULL); | |
3892 | if (bfd_seek (abfd, where, seek_direction) != 0 | |
3893 | || bfd_read (area, 1, size, abfd) != size) | |
3894 | return (NULL); | |
3895 | return (area); | |
3896 | } /* buy_and_read() */ | |
3897 | ||
3898 | /* | |
3899 | SUBSUBSECTION | |
3900 | Reading linenumbers | |
3901 | ||
3902 | Creating the linenumber table is done by reading in the entire | |
3903 | coff linenumber table, and creating another table for internal use. | |
3904 | ||
3905 | A coff linenumber table is structured so that each function | |
3906 | is marked as having a line number of 0. Each line within the | |
3907 | function is an offset from the first line in the function. The | |
3908 | base of the line number information for the table is stored in | |
3909 | the symbol associated with the function. | |
3910 | ||
00692651 ILT |
3911 | Note: The PE format uses line number 0 for a flag indicating a |
3912 | new source file. | |
3913 | ||
252b5132 RH |
3914 | The information is copied from the external to the internal |
3915 | table, and each symbol which marks a function is marked by | |
3916 | pointing its... | |
3917 | ||
3918 | How does this work ? | |
3919 | ||
3920 | */ | |
3921 | ||
3922 | static boolean | |
3923 | coff_slurp_line_table (abfd, asect) | |
3924 | bfd *abfd; | |
3925 | asection *asect; | |
3926 | { | |
3927 | LINENO *native_lineno; | |
3928 | alent *lineno_cache; | |
3929 | ||
3930 | BFD_ASSERT (asect->lineno == (alent *) NULL); | |
3931 | ||
3932 | native_lineno = (LINENO *) buy_and_read (abfd, | |
3933 | asect->line_filepos, | |
3934 | SEEK_SET, | |
6b3b007b | 3935 | (size_t) (bfd_coff_linesz (abfd) * |
252b5132 RH |
3936 | asect->lineno_count)); |
3937 | lineno_cache = | |
3938 | (alent *) bfd_alloc (abfd, (size_t) ((asect->lineno_count + 1) * sizeof (alent))); | |
3939 | if (lineno_cache == NULL) | |
3940 | return false; | |
3941 | else | |
3942 | { | |
3943 | unsigned int counter = 0; | |
3944 | alent *cache_ptr = lineno_cache; | |
3945 | LINENO *src = native_lineno; | |
3946 | ||
3947 | while (counter < asect->lineno_count) | |
3948 | { | |
3949 | struct internal_lineno dst; | |
3950 | coff_swap_lineno_in (abfd, src, &dst); | |
3951 | cache_ptr->line_number = dst.l_lnno; | |
3952 | ||
3953 | if (cache_ptr->line_number == 0) | |
3954 | { | |
3955 | boolean warned; | |
3956 | long symndx; | |
3957 | coff_symbol_type *sym; | |
3958 | ||
3959 | warned = false; | |
3960 | symndx = dst.l_addr.l_symndx; | |
3961 | if (symndx < 0 | |
3962 | || (unsigned long) symndx >= obj_raw_syment_count (abfd)) | |
3963 | { | |
3964 | (*_bfd_error_handler) | |
3965 | (_("%s: warning: illegal symbol index %ld in line numbers"), | |
3966 | bfd_get_filename (abfd), dst.l_addr.l_symndx); | |
3967 | symndx = 0; | |
3968 | warned = true; | |
3969 | } | |
3970 | /* FIXME: We should not be casting between ints and | |
3971 | pointers like this. */ | |
3972 | sym = ((coff_symbol_type *) | |
3973 | ((symndx + obj_raw_syments (abfd)) | |
3974 | ->u.syment._n._n_n._n_zeroes)); | |
3975 | cache_ptr->u.sym = (asymbol *) sym; | |
3976 | if (sym->lineno != NULL && ! warned) | |
3977 | { | |
3978 | (*_bfd_error_handler) | |
3979 | (_("%s: warning: duplicate line number information for `%s'"), | |
3980 | bfd_get_filename (abfd), | |
3981 | bfd_asymbol_name (&sym->symbol)); | |
3982 | } | |
3983 | sym->lineno = cache_ptr; | |
3984 | } | |
3985 | else | |
3986 | { | |
3987 | cache_ptr->u.offset = dst.l_addr.l_paddr | |
3988 | - bfd_section_vma (abfd, asect); | |
3989 | } /* If no linenumber expect a symbol index */ | |
3990 | ||
3991 | cache_ptr++; | |
3992 | src++; | |
3993 | counter++; | |
3994 | } | |
3995 | cache_ptr->line_number = 0; | |
3996 | ||
3997 | } | |
3998 | asect->lineno = lineno_cache; | |
3999 | /* FIXME, free native_lineno here, or use alloca or something. */ | |
4000 | return true; | |
4001 | } | |
4002 | ||
00692651 ILT |
4003 | /* Slurp in the symbol table, converting it to generic form. Note |
4004 | that if coff_relocate_section is defined, the linker will read | |
4005 | symbols via coff_link_add_symbols, rather than via this routine. */ | |
4006 | ||
252b5132 RH |
4007 | static boolean |
4008 | coff_slurp_symbol_table (abfd) | |
4009 | bfd * abfd; | |
4010 | { | |
4011 | combined_entry_type *native_symbols; | |
4012 | coff_symbol_type *cached_area; | |
4013 | unsigned int *table_ptr; | |
4014 | ||
4015 | unsigned int number_of_symbols = 0; | |
4016 | ||
4017 | if (obj_symbols (abfd)) | |
4018 | return true; | |
4019 | ||
4020 | /* Read in the symbol table */ | |
4021 | if ((native_symbols = coff_get_normalized_symtab (abfd)) == NULL) | |
4022 | { | |
4023 | return (false); | |
4024 | } /* on error */ | |
4025 | ||
4026 | /* Allocate enough room for all the symbols in cached form */ | |
4027 | cached_area = ((coff_symbol_type *) | |
4028 | bfd_alloc (abfd, | |
4029 | (obj_raw_syment_count (abfd) | |
4030 | * sizeof (coff_symbol_type)))); | |
4031 | ||
4032 | if (cached_area == NULL) | |
4033 | return false; | |
4034 | table_ptr = ((unsigned int *) | |
4035 | bfd_alloc (abfd, | |
4036 | (obj_raw_syment_count (abfd) | |
4037 | * sizeof (unsigned int)))); | |
4038 | ||
4039 | if (table_ptr == NULL) | |
4040 | return false; | |
4041 | else | |
4042 | { | |
4043 | coff_symbol_type *dst = cached_area; | |
4044 | unsigned int last_native_index = obj_raw_syment_count (abfd); | |
4045 | unsigned int this_index = 0; | |
4046 | while (this_index < last_native_index) | |
4047 | { | |
4048 | combined_entry_type *src = native_symbols + this_index; | |
4049 | table_ptr[this_index] = number_of_symbols; | |
4050 | dst->symbol.the_bfd = abfd; | |
4051 | ||
4052 | dst->symbol.name = (char *) (src->u.syment._n._n_n._n_offset); | |
4053 | /* We use the native name field to point to the cached field. */ | |
4054 | src->u.syment._n._n_n._n_zeroes = (long) dst; | |
4055 | dst->symbol.section = coff_section_from_bfd_index (abfd, | |
4056 | src->u.syment.n_scnum); | |
4057 | dst->symbol.flags = 0; | |
4058 | dst->done_lineno = false; | |
4059 | ||
4060 | switch (src->u.syment.n_sclass) | |
4061 | { | |
4062 | #ifdef I960 | |
4063 | case C_LEAFEXT: | |
4064 | #if 0 | |
4065 | dst->symbol.value = src->u.syment.n_value - dst->symbol.section->vma; | |
4066 | dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL; | |
4067 | dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION; | |
4068 | #endif | |
4069 | /* Fall through to next case */ | |
4070 | ||
4071 | #endif | |
4072 | ||
4073 | case C_EXT: | |
4074 | case C_WEAKEXT: | |
4075 | #if defined ARM | |
4076 | case C_THUMBEXT: | |
4077 | case C_THUMBEXTFUNC: | |
4078 | #endif | |
4079 | #ifdef RS6000COFF_C | |
4080 | case C_HIDEXT: | |
4081 | #endif | |
4082 | #ifdef C_SYSTEM | |
4083 | case C_SYSTEM: /* System Wide variable */ | |
4084 | #endif | |
4085 | #ifdef COFF_WITH_PE | |
5d54c628 | 4086 | /* In PE, 0x68 (104) denotes a section symbol */ |
252b5132 | 4087 | case C_SECTION: |
5d54c628 | 4088 | /* In PE, 0x69 (105) denotes a weak external symbol. */ |
252b5132 RH |
4089 | case C_NT_WEAK: |
4090 | #endif | |
5d54c628 | 4091 | switch (coff_classify_symbol (abfd, &src->u.syment)) |
252b5132 | 4092 | { |
5d54c628 | 4093 | case COFF_SYMBOL_GLOBAL: |
252b5132 | 4094 | dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL; |
252b5132 RH |
4095 | #if defined COFF_WITH_PE |
4096 | /* PE sets the symbol to a value relative to the | |
4097 | start of the section. */ | |
4098 | dst->symbol.value = src->u.syment.n_value; | |
4099 | #else | |
4100 | dst->symbol.value = (src->u.syment.n_value | |
4101 | - dst->symbol.section->vma); | |
4102 | #endif | |
252b5132 RH |
4103 | if (ISFCN ((src->u.syment.n_type))) |
4104 | { | |
4105 | /* A function ext does not go at the end of a | |
4106 | file. */ | |
4107 | dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION; | |
4108 | } | |
5d54c628 ILT |
4109 | break; |
4110 | ||
4111 | case COFF_SYMBOL_COMMON: | |
4112 | dst->symbol.section = bfd_com_section_ptr; | |
4113 | dst->symbol.value = src->u.syment.n_value; | |
4114 | break; | |
4115 | ||
4116 | case COFF_SYMBOL_UNDEFINED: | |
4117 | dst->symbol.section = bfd_und_section_ptr; | |
4118 | dst->symbol.value = 0; | |
4119 | break; | |
4120 | ||
4121 | case COFF_SYMBOL_PE_SECTION: | |
4122 | dst->symbol.flags |= BSF_EXPORT | BSF_SECTION_SYM; | |
4123 | dst->symbol.value = 0; | |
4124 | break; | |
4125 | ||
4126 | case COFF_SYMBOL_LOCAL: | |
4127 | dst->symbol.flags = BSF_LOCAL; | |
4128 | #if defined COFF_WITH_PE | |
4129 | /* PE sets the symbol to a value relative to the | |
4130 | start of the section. */ | |
4131 | dst->symbol.value = src->u.syment.n_value; | |
4132 | #else | |
4133 | dst->symbol.value = (src->u.syment.n_value | |
4134 | - dst->symbol.section->vma); | |
4135 | #endif | |
4136 | if (ISFCN ((src->u.syment.n_type))) | |
4137 | dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION; | |
4138 | break; | |
252b5132 RH |
4139 | } |
4140 | ||
4141 | #ifdef RS6000COFF_C | |
252b5132 RH |
4142 | /* A symbol with a csect entry should not go at the end. */ |
4143 | if (src->u.syment.n_numaux > 0) | |
4144 | dst->symbol.flags |= BSF_NOT_AT_END; | |
4145 | #endif | |
4146 | ||
4147 | #ifdef COFF_WITH_PE | |
4148 | if (src->u.syment.n_sclass == C_NT_WEAK) | |
4149 | dst->symbol.flags = BSF_WEAK; | |
ec0ef80e DD |
4150 | if (src->u.syment.n_sclass == C_SECTION |
4151 | && src->u.syment.n_scnum > 0) | |
4152 | { | |
4153 | dst->symbol.flags = BSF_LOCAL; | |
4154 | } | |
252b5132 RH |
4155 | #endif |
4156 | ||
4157 | if (src->u.syment.n_sclass == C_WEAKEXT) | |
4158 | dst->symbol.flags = BSF_WEAK; | |
4159 | ||
4160 | break; | |
4161 | ||
4162 | case C_STAT: /* static */ | |
4163 | #ifdef I960 | |
4164 | case C_LEAFSTAT: /* static leaf procedure */ | |
4165 | #endif | |
4166 | #if defined ARM | |
4167 | case C_THUMBSTAT: /* Thumb static */ | |
4168 | case C_THUMBLABEL: /* Thumb label */ | |
4169 | case C_THUMBSTATFUNC:/* Thumb static function */ | |
4170 | #endif | |
4171 | case C_LABEL: /* label */ | |
00692651 | 4172 | if (src->u.syment.n_scnum == N_DEBUG) |
252b5132 RH |
4173 | dst->symbol.flags = BSF_DEBUGGING; |
4174 | else | |
4175 | dst->symbol.flags = BSF_LOCAL; | |
4176 | ||
4177 | /* Base the value as an index from the base of the | |
4178 | section, if there is one. */ | |
4179 | if (dst->symbol.section) | |
4180 | { | |
4181 | #if defined COFF_WITH_PE | |
4182 | /* PE sets the symbol to a value relative to the | |
4183 | start of the section. */ | |
4184 | dst->symbol.value = src->u.syment.n_value; | |
4185 | #else | |
4186 | dst->symbol.value = (src->u.syment.n_value | |
4187 | - dst->symbol.section->vma); | |
4188 | #endif | |
4189 | } | |
4190 | else | |
4191 | dst->symbol.value = src->u.syment.n_value; | |
4192 | break; | |
4193 | ||
4194 | case C_MOS: /* member of structure */ | |
4195 | case C_EOS: /* end of structure */ | |
4196 | #ifdef NOTDEF /* C_AUTOARG has the same value */ | |
4197 | #ifdef C_GLBLREG | |
4198 | case C_GLBLREG: /* A29k-specific storage class */ | |
4199 | #endif | |
4200 | #endif | |
4201 | case C_REGPARM: /* register parameter */ | |
4202 | case C_REG: /* register variable */ | |
4203 | #ifndef TIC80COFF | |
4204 | #ifdef C_AUTOARG | |
4205 | case C_AUTOARG: /* 960-specific storage class */ | |
4206 | #endif | |
4207 | #endif | |
4208 | case C_TPDEF: /* type definition */ | |
4209 | case C_ARG: | |
4210 | case C_AUTO: /* automatic variable */ | |
4211 | case C_FIELD: /* bit field */ | |
4212 | case C_ENTAG: /* enumeration tag */ | |
4213 | case C_MOE: /* member of enumeration */ | |
4214 | case C_MOU: /* member of union */ | |
4215 | case C_UNTAG: /* union tag */ | |
4216 | dst->symbol.flags = BSF_DEBUGGING; | |
4217 | dst->symbol.value = (src->u.syment.n_value); | |
4218 | break; | |
4219 | ||
4220 | case C_FILE: /* file name */ | |
4221 | case C_STRTAG: /* structure tag */ | |
4222 | #ifdef RS6000COFF_C | |
4223 | case C_GSYM: | |
4224 | case C_LSYM: | |
4225 | case C_PSYM: | |
4226 | case C_RSYM: | |
4227 | case C_RPSYM: | |
4228 | case C_STSYM: | |
4229 | case C_BCOMM: | |
4230 | case C_ECOMM: | |
4231 | case C_DECL: | |
4232 | case C_ENTRY: | |
4233 | case C_FUN: | |
4234 | case C_ESTAT: | |
4235 | #endif | |
4236 | dst->symbol.flags = BSF_DEBUGGING; | |
4237 | dst->symbol.value = (src->u.syment.n_value); | |
4238 | break; | |
4239 | ||
4240 | #ifdef RS6000COFF_C | |
4241 | case C_BINCL: /* beginning of include file */ | |
4242 | case C_EINCL: /* ending of include file */ | |
4243 | /* The value is actually a pointer into the line numbers | |
4244 | of the file. We locate the line number entry, and | |
4245 | set the section to the section which contains it, and | |
4246 | the value to the index in that section. */ | |
4247 | { | |
4248 | asection *sec; | |
4249 | ||
4250 | dst->symbol.flags = BSF_DEBUGGING; | |
4251 | for (sec = abfd->sections; sec != NULL; sec = sec->next) | |
4252 | if (sec->line_filepos <= (file_ptr) src->u.syment.n_value | |
4253 | && ((file_ptr) (sec->line_filepos | |
6b3b007b | 4254 | + sec->lineno_count * bfd_coff_linesz (abfd)) |
252b5132 RH |
4255 | > (file_ptr) src->u.syment.n_value)) |
4256 | break; | |
4257 | if (sec == NULL) | |
4258 | dst->symbol.value = 0; | |
4259 | else | |
4260 | { | |
4261 | dst->symbol.section = sec; | |
4262 | dst->symbol.value = ((src->u.syment.n_value | |
4263 | - sec->line_filepos) | |
6b3b007b | 4264 | / bfd_coff_linesz (abfd)); |
252b5132 RH |
4265 | src->fix_line = 1; |
4266 | } | |
4267 | } | |
4268 | break; | |
4269 | ||
4270 | case C_BSTAT: | |
4271 | dst->symbol.flags = BSF_DEBUGGING; | |
4272 | ||
4273 | /* The value is actually a symbol index. Save a pointer | |
4274 | to the symbol instead of the index. FIXME: This | |
4275 | should use a union. */ | |
4276 | src->u.syment.n_value = | |
4277 | (long) (native_symbols + src->u.syment.n_value); | |
4278 | dst->symbol.value = src->u.syment.n_value; | |
4279 | src->fix_value = 1; | |
4280 | break; | |
4281 | #endif | |
4282 | ||
4283 | case C_BLOCK: /* ".bb" or ".eb" */ | |
d510f9a6 | 4284 | case C_FCN: /* ".bf" or ".ef" (or PE ".lf") */ |
252b5132 | 4285 | case C_EFCN: /* physical end of function */ |
252b5132 RH |
4286 | #if defined COFF_WITH_PE |
4287 | /* PE sets the symbol to a value relative to the start | |
4288 | of the section. */ | |
4289 | dst->symbol.value = src->u.syment.n_value; | |
d510f9a6 ILT |
4290 | if (strcmp (dst->symbol.name, ".bf") != 0) |
4291 | { | |
4292 | /* PE uses funny values for .ef and .lf; don't | |
4293 | relocate them. */ | |
4294 | dst->symbol.flags = BSF_DEBUGGING; | |
4295 | } | |
4296 | else | |
4297 | dst->symbol.flags = BSF_DEBUGGING | BSF_DEBUGGING_RELOC; | |
252b5132 RH |
4298 | #else |
4299 | /* Base the value as an index from the base of the | |
4300 | section. */ | |
d510f9a6 | 4301 | dst->symbol.flags = BSF_LOCAL; |
252b5132 RH |
4302 | dst->symbol.value = (src->u.syment.n_value |
4303 | - dst->symbol.section->vma); | |
4304 | #endif | |
4305 | break; | |
4306 | ||
4307 | case C_NULL: | |
00692651 ILT |
4308 | /* PE DLLs sometimes have zeroed out symbols for some |
4309 | reason. Just ignore them without a warning. */ | |
4310 | if (src->u.syment.n_type == 0 | |
4311 | && src->u.syment.n_value == 0 | |
4312 | && src->u.syment.n_scnum == 0) | |
4313 | break; | |
4314 | /* Fall through. */ | |
252b5132 RH |
4315 | case C_EXTDEF: /* external definition */ |
4316 | case C_ULABEL: /* undefined label */ | |
4317 | case C_USTATIC: /* undefined static */ | |
4318 | #ifndef COFF_WITH_PE | |
4319 | /* C_LINE in regular coff is 0x68. NT has taken over this storage | |
4320 | class to represent a section symbol */ | |
4321 | case C_LINE: /* line # reformatted as symbol table entry */ | |
4322 | /* NT uses 0x67 for a weak symbol, not C_ALIAS. */ | |
4323 | case C_ALIAS: /* duplicate tag */ | |
4324 | #endif | |
4325 | /* New storage classes for TIc80 */ | |
4326 | #ifdef TIC80COFF | |
4327 | case C_UEXT: /* Tentative external definition */ | |
4328 | #endif | |
4329 | case C_STATLAB: /* Static load time label */ | |
4330 | case C_EXTLAB: /* External load time label */ | |
4331 | case C_HIDDEN: /* ext symbol in dmert public lib */ | |
4332 | default: | |
4333 | (*_bfd_error_handler) | |
4334 | (_("%s: Unrecognized storage class %d for %s symbol `%s'"), | |
4335 | bfd_get_filename (abfd), src->u.syment.n_sclass, | |
4336 | dst->symbol.section->name, dst->symbol.name); | |
4337 | dst->symbol.flags = BSF_DEBUGGING; | |
4338 | dst->symbol.value = (src->u.syment.n_value); | |
4339 | break; | |
4340 | } | |
4341 | ||
4342 | /* BFD_ASSERT(dst->symbol.flags != 0);*/ | |
4343 | ||
4344 | dst->native = src; | |
4345 | ||
4346 | dst->symbol.udata.i = 0; | |
4347 | dst->lineno = (alent *) NULL; | |
4348 | this_index += (src->u.syment.n_numaux) + 1; | |
4349 | dst++; | |
4350 | number_of_symbols++; | |
4351 | } /* walk the native symtab */ | |
4352 | } /* bfdize the native symtab */ | |
4353 | ||
4354 | obj_symbols (abfd) = cached_area; | |
4355 | obj_raw_syments (abfd) = native_symbols; | |
4356 | ||
4357 | bfd_get_symcount (abfd) = number_of_symbols; | |
4358 | obj_convert (abfd) = table_ptr; | |
4359 | /* Slurp the line tables for each section too */ | |
4360 | { | |
4361 | asection *p; | |
4362 | p = abfd->sections; | |
4363 | while (p) | |
4364 | { | |
4365 | coff_slurp_line_table (abfd, p); | |
4366 | p = p->next; | |
4367 | } | |
4368 | } | |
4369 | return true; | |
4370 | } /* coff_slurp_symbol_table() */ | |
4371 | ||
5d54c628 ILT |
4372 | /* Classify a COFF symbol. A couple of targets have globally visible |
4373 | symbols which are not class C_EXT, and this handles those. It also | |
4374 | recognizes some special PE cases. */ | |
252b5132 | 4375 | |
5d54c628 ILT |
4376 | static enum coff_symbol_classification |
4377 | coff_classify_symbol (abfd, syment) | |
4378 | bfd *abfd; | |
4379 | struct internal_syment *syment; | |
4380 | { | |
4381 | /* FIXME: This partially duplicates the switch in | |
4382 | coff_slurp_symbol_table. */ | |
4383 | switch (syment->n_sclass) | |
4384 | { | |
4385 | case C_EXT: | |
4386 | case C_WEAKEXT: | |
252b5132 | 4387 | #ifdef I960 |
5d54c628 | 4388 | case C_LEAFEXT: |
252b5132 | 4389 | #endif |
5d54c628 ILT |
4390 | #ifdef ARM |
4391 | case C_THUMBEXT: | |
4392 | case C_THUMBEXTFUNC: | |
252b5132 | 4393 | #endif |
5d54c628 ILT |
4394 | #ifdef C_SYSTEM |
4395 | case C_SYSTEM: | |
252b5132 | 4396 | #endif |
5d54c628 ILT |
4397 | #ifdef COFF_WITH_PE |
4398 | case C_NT_WEAK: | |
4399 | #endif | |
4400 | if (syment->n_scnum == 0) | |
4401 | { | |
4402 | if (syment->n_value == 0) | |
4403 | return COFF_SYMBOL_UNDEFINED; | |
4404 | else | |
4405 | return COFF_SYMBOL_COMMON; | |
4406 | } | |
4407 | return COFF_SYMBOL_GLOBAL; | |
4408 | ||
4409 | default: | |
4410 | break; | |
4411 | } | |
252b5132 | 4412 | |
5d54c628 ILT |
4413 | #ifdef COFF_WITH_PE |
4414 | if (syment->n_sclass == C_STAT) | |
4415 | { | |
4416 | if (syment->n_scnum == 0) | |
4417 | { | |
4418 | /* The Microsoft compiler sometimes generates these if a | |
4419 | small static function is inlined every time it is used. | |
4420 | The function is discarded, but the symbol table entry | |
4421 | remains. */ | |
4422 | return COFF_SYMBOL_LOCAL; | |
4423 | } | |
252b5132 | 4424 | |
0717ebb7 | 4425 | #ifdef STRICT_PE_FORMAT |
bd826630 ILT |
4426 | /* This is correct for Microsoft generated objects, but it |
4427 | breaks gas generated objects. */ | |
4428 | ||
5d54c628 ILT |
4429 | if (syment->n_value == 0) |
4430 | { | |
4431 | asection *sec; | |
4432 | char buf[SYMNMLEN + 1]; | |
4433 | ||
4434 | sec = coff_section_from_bfd_index (abfd, syment->n_scnum); | |
4435 | if (sec != NULL | |
4436 | && (strcmp (bfd_get_section_name (abfd, sec), | |
4437 | _bfd_coff_internal_syment_name (abfd, syment, buf)) | |
4438 | == 0)) | |
4439 | return COFF_SYMBOL_PE_SECTION; | |
4440 | } | |
bd826630 | 4441 | #endif |
252b5132 | 4442 | |
5d54c628 ILT |
4443 | return COFF_SYMBOL_LOCAL; |
4444 | } | |
252b5132 | 4445 | |
5d54c628 ILT |
4446 | if (syment->n_sclass == C_SECTION) |
4447 | { | |
4448 | /* In some cases in a DLL generated by the Microsoft linker, the | |
4449 | n_value field will contain garbage. FIXME: This should | |
4450 | probably be handled by the swapping function instead. */ | |
4451 | syment->n_value = 0; | |
4452 | if (syment->n_scnum == 0) | |
4453 | return COFF_SYMBOL_UNDEFINED; | |
4454 | return COFF_SYMBOL_PE_SECTION; | |
4455 | } | |
4456 | #endif /* COFF_WITH_PE */ | |
252b5132 | 4457 | |
5d54c628 | 4458 | /* If it is not a global symbol, we presume it is a local symbol. */ |
252b5132 | 4459 | |
5d54c628 ILT |
4460 | if (syment->n_scnum == 0) |
4461 | { | |
4462 | char buf[SYMNMLEN + 1]; | |
252b5132 | 4463 | |
5d54c628 ILT |
4464 | (*_bfd_error_handler) |
4465 | (_("warning: %s: local symbol `%s' has no section"), | |
4466 | bfd_get_filename (abfd), | |
4467 | _bfd_coff_internal_syment_name (abfd, syment, buf)); | |
4468 | } | |
252b5132 | 4469 | |
5d54c628 ILT |
4470 | return COFF_SYMBOL_LOCAL; |
4471 | } | |
252b5132 RH |
4472 | |
4473 | /* | |
4474 | SUBSUBSECTION | |
4475 | Reading relocations | |
4476 | ||
4477 | Coff relocations are easily transformed into the internal BFD form | |
4478 | (@code{arelent}). | |
4479 | ||
4480 | Reading a coff relocation table is done in the following stages: | |
4481 | ||
4482 | o Read the entire coff relocation table into memory. | |
4483 | ||
4484 | o Process each relocation in turn; first swap it from the | |
4485 | external to the internal form. | |
4486 | ||
4487 | o Turn the symbol referenced in the relocation's symbol index | |
4488 | into a pointer into the canonical symbol table. | |
4489 | This table is the same as the one returned by a call to | |
4490 | @code{bfd_canonicalize_symtab}. The back end will call that | |
4491 | routine and save the result if a canonicalization hasn't been done. | |
4492 | ||
4493 | o The reloc index is turned into a pointer to a howto | |
4494 | structure, in a back end specific way. For instance, the 386 | |
4495 | and 960 use the @code{r_type} to directly produce an index | |
4496 | into a howto table vector; the 88k subtracts a number from the | |
4497 | @code{r_type} field and creates an addend field. | |
4498 | ||
4499 | ||
4500 | */ | |
4501 | ||
4502 | #ifndef CALC_ADDEND | |
4503 | #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \ | |
4504 | { \ | |
4505 | coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \ | |
4506 | if (ptr && bfd_asymbol_bfd (ptr) != abfd) \ | |
4507 | coffsym = (obj_symbols (abfd) \ | |
4508 | + (cache_ptr->sym_ptr_ptr - symbols)); \ | |
4509 | else if (ptr) \ | |
4510 | coffsym = coff_symbol_from (abfd, ptr); \ | |
4511 | if (coffsym != (coff_symbol_type *) NULL \ | |
4512 | && coffsym->native->u.syment.n_scnum == 0) \ | |
4513 | cache_ptr->addend = 0; \ | |
4514 | else if (ptr && bfd_asymbol_bfd (ptr) == abfd \ | |
4515 | && ptr->section != (asection *) NULL) \ | |
4516 | cache_ptr->addend = - (ptr->section->vma + ptr->value); \ | |
4517 | else \ | |
4518 | cache_ptr->addend = 0; \ | |
4519 | } | |
4520 | #endif | |
4521 | ||
4522 | static boolean | |
4523 | coff_slurp_reloc_table (abfd, asect, symbols) | |
4524 | bfd * abfd; | |
4525 | sec_ptr asect; | |
4526 | asymbol ** symbols; | |
4527 | { | |
4528 | RELOC *native_relocs; | |
4529 | arelent *reloc_cache; | |
4530 | arelent *cache_ptr; | |
4531 | ||
4532 | unsigned int idx; | |
4533 | ||
4534 | if (asect->relocation) | |
4535 | return true; | |
4536 | if (asect->reloc_count == 0) | |
4537 | return true; | |
4538 | if (asect->flags & SEC_CONSTRUCTOR) | |
4539 | return true; | |
4540 | if (!coff_slurp_symbol_table (abfd)) | |
4541 | return false; | |
4542 | native_relocs = | |
4543 | (RELOC *) buy_and_read (abfd, | |
4544 | asect->rel_filepos, | |
4545 | SEEK_SET, | |
6b3b007b | 4546 | (size_t) (bfd_coff_relsz (abfd) * |
252b5132 RH |
4547 | asect->reloc_count)); |
4548 | reloc_cache = (arelent *) | |
4549 | bfd_alloc (abfd, (size_t) (asect->reloc_count * sizeof (arelent))); | |
4550 | ||
4551 | if (reloc_cache == NULL) | |
4552 | return false; | |
4553 | ||
4554 | ||
4555 | for (idx = 0; idx < asect->reloc_count; idx++) | |
4556 | { | |
4557 | struct internal_reloc dst; | |
4558 | struct external_reloc *src; | |
4559 | #ifndef RELOC_PROCESSING | |
4560 | asymbol *ptr; | |
4561 | #endif | |
4562 | ||
4563 | cache_ptr = reloc_cache + idx; | |
4564 | src = native_relocs + idx; | |
4565 | ||
4566 | coff_swap_reloc_in (abfd, src, &dst); | |
4567 | ||
4568 | #ifdef RELOC_PROCESSING | |
4569 | RELOC_PROCESSING (cache_ptr, &dst, symbols, abfd, asect); | |
4570 | #else | |
4571 | cache_ptr->address = dst.r_vaddr; | |
4572 | ||
4573 | if (dst.r_symndx != -1) | |
4574 | { | |
4575 | if (dst.r_symndx < 0 || dst.r_symndx >= obj_conv_table_size (abfd)) | |
4576 | { | |
4577 | (*_bfd_error_handler) | |
4578 | (_("%s: warning: illegal symbol index %ld in relocs"), | |
4579 | bfd_get_filename (abfd), dst.r_symndx); | |
4580 | cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; | |
4581 | ptr = NULL; | |
4582 | } | |
4583 | else | |
4584 | { | |
4585 | cache_ptr->sym_ptr_ptr = (symbols | |
4586 | + obj_convert (abfd)[dst.r_symndx]); | |
4587 | ptr = *(cache_ptr->sym_ptr_ptr); | |
4588 | } | |
4589 | } | |
4590 | else | |
4591 | { | |
4592 | cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; | |
4593 | ptr = NULL; | |
4594 | } | |
4595 | ||
4596 | /* The symbols definitions that we have read in have been | |
4597 | relocated as if their sections started at 0. But the offsets | |
4598 | refering to the symbols in the raw data have not been | |
4599 | modified, so we have to have a negative addend to compensate. | |
4600 | ||
4601 | Note that symbols which used to be common must be left alone */ | |
4602 | ||
4603 | /* Calculate any reloc addend by looking at the symbol */ | |
4604 | CALC_ADDEND (abfd, ptr, dst, cache_ptr); | |
4605 | ||
4606 | cache_ptr->address -= asect->vma; | |
4607 | /* !! cache_ptr->section = (asection *) NULL;*/ | |
4608 | ||
4609 | /* Fill in the cache_ptr->howto field from dst.r_type */ | |
4610 | RTYPE2HOWTO (cache_ptr, &dst); | |
4611 | #endif /* RELOC_PROCESSING */ | |
4612 | ||
4613 | if (cache_ptr->howto == NULL) | |
4614 | { | |
4615 | (*_bfd_error_handler) | |
4616 | (_("%s: illegal relocation type %d at address 0x%lx"), | |
4617 | bfd_get_filename (abfd), dst.r_type, (long) dst.r_vaddr); | |
4618 | bfd_set_error (bfd_error_bad_value); | |
4619 | return false; | |
4620 | } | |
4621 | } | |
4622 | ||
4623 | asect->relocation = reloc_cache; | |
4624 | return true; | |
4625 | } | |
4626 | ||
4627 | #ifndef coff_rtype_to_howto | |
4628 | #ifdef RTYPE2HOWTO | |
4629 | ||
4630 | /* Get the howto structure for a reloc. This is only used if the file | |
4631 | including this one defines coff_relocate_section to be | |
4632 | _bfd_coff_generic_relocate_section, so it is OK if it does not | |
4633 | always work. It is the responsibility of the including file to | |
4634 | make sure it is reasonable if it is needed. */ | |
4635 | ||
4636 | static reloc_howto_type *coff_rtype_to_howto | |
4637 | PARAMS ((bfd *, asection *, struct internal_reloc *, | |
4638 | struct coff_link_hash_entry *, struct internal_syment *, | |
4639 | bfd_vma *)); | |
4640 | ||
4641 | /*ARGSUSED*/ | |
4642 | static reloc_howto_type * | |
4643 | coff_rtype_to_howto (abfd, sec, rel, h, sym, addendp) | |
5f771d47 ILT |
4644 | bfd *abfd ATTRIBUTE_UNUSED; |
4645 | asection *sec ATTRIBUTE_UNUSED; | |
252b5132 | 4646 | struct internal_reloc *rel; |
5f771d47 ILT |
4647 | struct coff_link_hash_entry *h ATTRIBUTE_UNUSED; |
4648 | struct internal_syment *sym ATTRIBUTE_UNUSED; | |
4649 | bfd_vma *addendp ATTRIBUTE_UNUSED; | |
252b5132 RH |
4650 | { |
4651 | arelent genrel; | |
4652 | ||
4653 | RTYPE2HOWTO (&genrel, rel); | |
4654 | return genrel.howto; | |
4655 | } | |
4656 | ||
4657 | #else /* ! defined (RTYPE2HOWTO) */ | |
4658 | ||
4659 | #define coff_rtype_to_howto NULL | |
4660 | ||
4661 | #endif /* ! defined (RTYPE2HOWTO) */ | |
4662 | #endif /* ! defined (coff_rtype_to_howto) */ | |
4663 | ||
4664 | /* This is stupid. This function should be a boolean predicate. */ | |
4665 | static long | |
4666 | coff_canonicalize_reloc (abfd, section, relptr, symbols) | |
4667 | bfd * abfd; | |
4668 | sec_ptr section; | |
4669 | arelent ** relptr; | |
4670 | asymbol ** symbols; | |
4671 | { | |
4672 | arelent *tblptr = section->relocation; | |
4673 | unsigned int count = 0; | |
4674 | ||
4675 | ||
4676 | if (section->flags & SEC_CONSTRUCTOR) | |
4677 | { | |
4678 | /* this section has relocs made up by us, they are not in the | |
4679 | file, so take them out of their chain and place them into | |
4680 | the data area provided */ | |
4681 | arelent_chain *chain = section->constructor_chain; | |
4682 | for (count = 0; count < section->reloc_count; count++) | |
4683 | { | |
4684 | *relptr++ = &chain->relent; | |
4685 | chain = chain->next; | |
4686 | } | |
4687 | ||
4688 | } | |
4689 | else | |
4690 | { | |
4691 | if (! coff_slurp_reloc_table (abfd, section, symbols)) | |
4692 | return -1; | |
4693 | ||
4694 | tblptr = section->relocation; | |
4695 | ||
4696 | for (; count++ < section->reloc_count;) | |
4697 | *relptr++ = tblptr++; | |
4698 | ||
4699 | ||
4700 | } | |
4701 | *relptr = 0; | |
4702 | return section->reloc_count; | |
4703 | } | |
4704 | ||
4705 | #ifdef GNU960 | |
4706 | file_ptr | |
4707 | coff_sym_filepos (abfd) | |
4708 | bfd *abfd; | |
4709 | { | |
4710 | return obj_sym_filepos (abfd); | |
4711 | } | |
4712 | #endif | |
4713 | ||
4714 | #ifndef coff_reloc16_estimate | |
4715 | #define coff_reloc16_estimate dummy_reloc16_estimate | |
4716 | ||
4717 | static int dummy_reloc16_estimate | |
4718 | PARAMS ((bfd *, asection *, arelent *, unsigned int, | |
4719 | struct bfd_link_info *)); | |
4720 | ||
4721 | static int | |
4722 | dummy_reloc16_estimate (abfd, input_section, reloc, shrink, link_info) | |
5f771d47 ILT |
4723 | bfd *abfd ATTRIBUTE_UNUSED; |
4724 | asection *input_section ATTRIBUTE_UNUSED; | |
4725 | arelent *reloc ATTRIBUTE_UNUSED; | |
4726 | unsigned int shrink ATTRIBUTE_UNUSED; | |
4727 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED; | |
252b5132 RH |
4728 | { |
4729 | abort (); | |
00692651 | 4730 | return 0; |
252b5132 RH |
4731 | } |
4732 | ||
4733 | #endif | |
4734 | ||
4735 | #ifndef coff_reloc16_extra_cases | |
4736 | ||
4737 | #define coff_reloc16_extra_cases dummy_reloc16_extra_cases | |
4738 | ||
4739 | /* This works even if abort is not declared in any header file. */ | |
4740 | ||
4741 | static void dummy_reloc16_extra_cases | |
4742 | PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *, | |
4743 | bfd_byte *, unsigned int *, unsigned int *)); | |
4744 | ||
4745 | static void | |
4746 | dummy_reloc16_extra_cases (abfd, link_info, link_order, reloc, data, src_ptr, | |
4747 | dst_ptr) | |
5f771d47 ILT |
4748 | bfd *abfd ATTRIBUTE_UNUSED; |
4749 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED; | |
4750 | struct bfd_link_order *link_order ATTRIBUTE_UNUSED; | |
4751 | arelent *reloc ATTRIBUTE_UNUSED; | |
4752 | bfd_byte *data ATTRIBUTE_UNUSED; | |
4753 | unsigned int *src_ptr ATTRIBUTE_UNUSED; | |
4754 | unsigned int *dst_ptr ATTRIBUTE_UNUSED; | |
252b5132 RH |
4755 | { |
4756 | abort (); | |
4757 | } | |
4758 | #endif | |
4759 | ||
4760 | /* If coff_relocate_section is defined, we can use the optimized COFF | |
4761 | backend linker. Otherwise we must continue to use the old linker. */ | |
4762 | #ifdef coff_relocate_section | |
4763 | #ifndef coff_bfd_link_hash_table_create | |
4764 | #define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create | |
4765 | #endif | |
4766 | #ifndef coff_bfd_link_add_symbols | |
4767 | #define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols | |
4768 | #endif | |
4769 | #ifndef coff_bfd_final_link | |
4770 | #define coff_bfd_final_link _bfd_coff_final_link | |
4771 | #endif | |
4772 | #else /* ! defined (coff_relocate_section) */ | |
4773 | #define coff_relocate_section NULL | |
4774 | #ifndef coff_bfd_link_hash_table_create | |
4775 | #define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create | |
4776 | #endif | |
4777 | #ifndef coff_bfd_link_add_symbols | |
4778 | #define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols | |
4779 | #endif | |
4780 | #define coff_bfd_final_link _bfd_generic_final_link | |
4781 | #endif /* ! defined (coff_relocate_section) */ | |
4782 | ||
4783 | #define coff_bfd_link_split_section _bfd_generic_link_split_section | |
4784 | ||
4785 | #ifndef coff_start_final_link | |
4786 | #define coff_start_final_link NULL | |
4787 | #endif | |
4788 | ||
4789 | #ifndef coff_adjust_symndx | |
4790 | #define coff_adjust_symndx NULL | |
4791 | #endif | |
4792 | ||
4793 | #ifndef coff_link_add_one_symbol | |
4794 | #define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol | |
4795 | #endif | |
4796 | ||
4797 | #ifndef coff_link_output_has_begun | |
4798 | ||
4799 | static boolean coff_link_output_has_begun | |
4800 | PARAMS ((bfd *, struct coff_final_link_info *)); | |
4801 | ||
4802 | static boolean | |
4803 | coff_link_output_has_begun (abfd, info) | |
4804 | bfd * abfd; | |
5f771d47 | 4805 | struct coff_final_link_info * info ATTRIBUTE_UNUSED; |
252b5132 RH |
4806 | { |
4807 | return abfd->output_has_begun; | |
4808 | } | |
4809 | #endif | |
4810 | ||
4811 | #ifndef coff_final_link_postscript | |
4812 | ||
4813 | static boolean coff_final_link_postscript | |
4814 | PARAMS ((bfd *, struct coff_final_link_info *)); | |
4815 | ||
4816 | static boolean | |
4817 | coff_final_link_postscript (abfd, pfinfo) | |
5f771d47 ILT |
4818 | bfd * abfd ATTRIBUTE_UNUSED; |
4819 | struct coff_final_link_info * pfinfo ATTRIBUTE_UNUSED; | |
252b5132 RH |
4820 | { |
4821 | return true; | |
4822 | } | |
4823 | #endif | |
4824 | ||
4825 | #ifndef coff_SWAP_aux_in | |
4826 | #define coff_SWAP_aux_in coff_swap_aux_in | |
4827 | #endif | |
4828 | #ifndef coff_SWAP_sym_in | |
4829 | #define coff_SWAP_sym_in coff_swap_sym_in | |
4830 | #endif | |
4831 | #ifndef coff_SWAP_lineno_in | |
4832 | #define coff_SWAP_lineno_in coff_swap_lineno_in | |
4833 | #endif | |
4834 | #ifndef coff_SWAP_aux_out | |
4835 | #define coff_SWAP_aux_out coff_swap_aux_out | |
4836 | #endif | |
4837 | #ifndef coff_SWAP_sym_out | |
4838 | #define coff_SWAP_sym_out coff_swap_sym_out | |
4839 | #endif | |
4840 | #ifndef coff_SWAP_lineno_out | |
4841 | #define coff_SWAP_lineno_out coff_swap_lineno_out | |
4842 | #endif | |
4843 | #ifndef coff_SWAP_reloc_out | |
4844 | #define coff_SWAP_reloc_out coff_swap_reloc_out | |
4845 | #endif | |
4846 | #ifndef coff_SWAP_filehdr_out | |
4847 | #define coff_SWAP_filehdr_out coff_swap_filehdr_out | |
4848 | #endif | |
4849 | #ifndef coff_SWAP_aouthdr_out | |
4850 | #define coff_SWAP_aouthdr_out coff_swap_aouthdr_out | |
4851 | #endif | |
4852 | #ifndef coff_SWAP_scnhdr_out | |
4853 | #define coff_SWAP_scnhdr_out coff_swap_scnhdr_out | |
4854 | #endif | |
4855 | #ifndef coff_SWAP_reloc_in | |
4856 | #define coff_SWAP_reloc_in coff_swap_reloc_in | |
4857 | #endif | |
4858 | #ifndef coff_SWAP_filehdr_in | |
4859 | #define coff_SWAP_filehdr_in coff_swap_filehdr_in | |
4860 | #endif | |
4861 | #ifndef coff_SWAP_aouthdr_in | |
4862 | #define coff_SWAP_aouthdr_in coff_swap_aouthdr_in | |
4863 | #endif | |
4864 | #ifndef coff_SWAP_scnhdr_in | |
4865 | #define coff_SWAP_scnhdr_in coff_swap_scnhdr_in | |
4866 | #endif | |
4867 | ||
692b7d62 | 4868 | static const bfd_coff_backend_data bfd_coff_std_swap_table = |
252b5132 RH |
4869 | { |
4870 | coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in, | |
4871 | coff_SWAP_aux_out, coff_SWAP_sym_out, | |
4872 | coff_SWAP_lineno_out, coff_SWAP_reloc_out, | |
4873 | coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out, | |
4874 | coff_SWAP_scnhdr_out, | |
692b7d62 | 4875 | FILHSZ, AOUTSZ, SCNHSZ, SYMESZ, AUXESZ, RELSZ, LINESZ, FILNMLEN, |
252b5132 RH |
4876 | #ifdef COFF_LONG_FILENAMES |
4877 | true, | |
4878 | #else | |
4879 | false, | |
4880 | #endif | |
4881 | #ifdef COFF_LONG_SECTION_NAMES | |
4882 | true, | |
4883 | #else | |
4884 | false, | |
4885 | #endif | |
4886 | COFF_DEFAULT_SECTION_ALIGNMENT_POWER, | |
4887 | coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in, | |
4888 | coff_SWAP_reloc_in, coff_bad_format_hook, coff_set_arch_mach_hook, | |
4889 | coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook, | |
4890 | coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook, | |
4891 | coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate, | |
5d54c628 | 4892 | coff_classify_symbol, coff_compute_section_file_positions, |
252b5132 RH |
4893 | coff_start_final_link, coff_relocate_section, coff_rtype_to_howto, |
4894 | coff_adjust_symndx, coff_link_add_one_symbol, | |
4895 | coff_link_output_has_begun, coff_final_link_postscript | |
4896 | }; | |
4897 | ||
4898 | #ifndef coff_close_and_cleanup | |
4899 | #define coff_close_and_cleanup _bfd_generic_close_and_cleanup | |
4900 | #endif | |
4901 | ||
4902 | #ifndef coff_bfd_free_cached_info | |
4903 | #define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info | |
4904 | #endif | |
4905 | ||
4906 | #ifndef coff_get_section_contents | |
4907 | #define coff_get_section_contents _bfd_generic_get_section_contents | |
4908 | #endif | |
4909 | ||
4910 | #ifndef coff_bfd_copy_private_symbol_data | |
4911 | #define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data | |
4912 | #endif | |
4913 | ||
4914 | #ifndef coff_bfd_copy_private_section_data | |
4915 | #define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data | |
4916 | #endif | |
4917 | ||
4918 | #ifndef coff_bfd_copy_private_bfd_data | |
4919 | #define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data | |
4920 | #endif | |
4921 | ||
4922 | #ifndef coff_bfd_merge_private_bfd_data | |
4923 | #define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data | |
4924 | #endif | |
4925 | ||
4926 | #ifndef coff_bfd_set_private_flags | |
4927 | #define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags | |
4928 | #endif | |
4929 | ||
4930 | #ifndef coff_bfd_print_private_bfd_data | |
4931 | #define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data | |
4932 | #endif | |
4933 | ||
4934 | #ifndef coff_bfd_is_local_label_name | |
4935 | #define coff_bfd_is_local_label_name _bfd_coff_is_local_label_name | |
4936 | #endif | |
4937 | ||
4938 | #ifndef coff_read_minisymbols | |
4939 | #define coff_read_minisymbols _bfd_generic_read_minisymbols | |
4940 | #endif | |
4941 | ||
4942 | #ifndef coff_minisymbol_to_symbol | |
4943 | #define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol | |
4944 | #endif | |
4945 | ||
4946 | /* The reloc lookup routine must be supplied by each individual COFF | |
4947 | backend. */ | |
4948 | #ifndef coff_bfd_reloc_type_lookup | |
4949 | #define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup | |
4950 | #endif | |
4951 | ||
4952 | #ifndef coff_bfd_get_relocated_section_contents | |
4953 | #define coff_bfd_get_relocated_section_contents \ | |
4954 | bfd_generic_get_relocated_section_contents | |
4955 | #endif | |
4956 | ||
4957 | #ifndef coff_bfd_relax_section | |
4958 | #define coff_bfd_relax_section bfd_generic_relax_section | |
4959 | #endif | |
4960 | ||
4961 | #ifndef coff_bfd_gc_sections | |
4962 | #define coff_bfd_gc_sections bfd_generic_gc_sections | |
4963 | #endif | |
c3c89269 NC |
4964 | |
4965 | #define CREATE_BIG_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE) \ | |
4c117b10 ILT |
4966 | const bfd_target VAR = \ |
4967 | { \ | |
4968 | NAME , \ | |
4969 | bfd_target_coff_flavour, \ | |
4970 | BFD_ENDIAN_BIG, /* data byte order is big */ \ | |
4971 | BFD_ENDIAN_BIG, /* header byte order is big */ \ | |
4972 | /* object flags */ \ | |
4973 | (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \ | |
4974 | HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \ | |
4975 | /* section flags */ \ | |
4976 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\ | |
4977 | UNDER, /* leading symbol underscore */ \ | |
4978 | '/', /* ar_pad_char */ \ | |
4979 | 15, /* ar_max_namelen */ \ | |
4980 | \ | |
4981 | /* Data conversion functions. */ \ | |
4982 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, \ | |
4983 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, \ | |
4984 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, \ | |
4985 | \ | |
4986 | /* Header conversion functions. */ \ | |
4987 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, \ | |
4988 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, \ | |
4989 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, \ | |
4990 | \ | |
4991 | /* bfd_check_format */ \ | |
4992 | { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \ | |
4993 | _bfd_dummy_target }, \ | |
4994 | /* bfd_set_format */ \ | |
4995 | { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \ | |
4996 | /* bfd_write_contents */ \ | |
4997 | { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \ | |
4998 | bfd_false }, \ | |
4999 | \ | |
5000 | BFD_JUMP_TABLE_GENERIC (coff), \ | |
5001 | BFD_JUMP_TABLE_COPY (coff), \ | |
5002 | BFD_JUMP_TABLE_CORE (_bfd_nocore), \ | |
5003 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \ | |
5004 | BFD_JUMP_TABLE_SYMBOLS (coff), \ | |
5005 | BFD_JUMP_TABLE_RELOCS (coff), \ | |
5006 | BFD_JUMP_TABLE_WRITE (coff), \ | |
5007 | BFD_JUMP_TABLE_LINK (coff), \ | |
5008 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \ | |
5009 | \ | |
5010 | ALTERNATIVE, \ | |
5011 | \ | |
5012 | COFF_SWAP_TABLE \ | |
c3c89269 NC |
5013 | }; |
5014 | ||
5015 | #define CREATE_LITTLE_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE) \ | |
4c117b10 ILT |
5016 | const bfd_target VAR = \ |
5017 | { \ | |
5018 | NAME , \ | |
5019 | bfd_target_coff_flavour, \ | |
5020 | BFD_ENDIAN_LITTLE, /* data byte order is little */ \ | |
5021 | BFD_ENDIAN_LITTLE, /* header byte order is little */ \ | |
5022 | /* object flags */ \ | |
5023 | (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \ | |
5024 | HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \ | |
5025 | /* section flags */ \ | |
5026 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\ | |
5027 | UNDER, /* leading symbol underscore */ \ | |
5028 | '/', /* ar_pad_char */ \ | |
5029 | 15, /* ar_max_namelen */ \ | |
5030 | \ | |
5031 | /* Data conversion functions. */ \ | |
5032 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, \ | |
5033 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, \ | |
5034 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, \ | |
5035 | /* Header conversion functions. */ \ | |
5036 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, \ | |
5037 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, \ | |
5038 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, \ | |
5039 | /* bfd_check_format */ \ | |
5040 | { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \ | |
5041 | _bfd_dummy_target }, \ | |
5042 | /* bfd_set_format */ \ | |
5043 | { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \ | |
5044 | /* bfd_write_contents */ \ | |
5045 | { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \ | |
5046 | bfd_false }, \ | |
5047 | \ | |
5048 | BFD_JUMP_TABLE_GENERIC (coff), \ | |
5049 | BFD_JUMP_TABLE_COPY (coff), \ | |
5050 | BFD_JUMP_TABLE_CORE (_bfd_nocore), \ | |
5051 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \ | |
5052 | BFD_JUMP_TABLE_SYMBOLS (coff), \ | |
5053 | BFD_JUMP_TABLE_RELOCS (coff), \ | |
5054 | BFD_JUMP_TABLE_WRITE (coff), \ | |
5055 | BFD_JUMP_TABLE_LINK (coff), \ | |
5056 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \ | |
5057 | \ | |
5058 | ALTERNATIVE, \ | |
5059 | \ | |
5060 | COFF_SWAP_TABLE \ | |
c3c89269 | 5061 | }; |