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