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252b5132 | 1 | /* Support for the generic parts of most COFF variants, for BFD. |
7898deda | 2 | Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
9e7b37b3 | 3 | 2000, 2001, 2002 |
252b5132 RH |
4 | Free Software Foundation, Inc. |
5 | Written by Cygnus Support. | |
6 | ||
7 | This file is part of BFD, the Binary File Descriptor library. | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
22 | ||
23 | /* | |
24 | Most of this hacked by Steve Chamberlain, | |
25 | sac@cygnus.com | |
26 | */ | |
27 | /* | |
28 | ||
29 | SECTION | |
30 | coff backends | |
31 | ||
32 | BFD supports a number of different flavours of coff format. | |
33 | The major differences between formats are the sizes and | |
34 | alignments of fields in structures on disk, and the occasional | |
35 | extra field. | |
36 | ||
37 | Coff in all its varieties is implemented with a few common | |
38 | files and a number of implementation specific files. For | |
39 | example, The 88k bcs coff format is implemented in the file | |
40 | @file{coff-m88k.c}. This file @code{#include}s | |
41 | @file{coff/m88k.h} which defines the external structure of the | |
42 | coff format for the 88k, and @file{coff/internal.h} which | |
43 | defines the internal structure. @file{coff-m88k.c} also | |
44 | defines the relocations used by the 88k format | |
45 | @xref{Relocations}. | |
46 | ||
47 | The Intel i960 processor version of coff is implemented in | |
48 | @file{coff-i960.c}. This file has the same structure as | |
49 | @file{coff-m88k.c}, except that it includes @file{coff/i960.h} | |
50 | rather than @file{coff-m88k.h}. | |
51 | ||
52 | SUBSECTION | |
53 | Porting to a new version of coff | |
54 | ||
55 | The recommended method is to select from the existing | |
56 | implementations the version of coff which is most like the one | |
57 | you want to use. For example, we'll say that i386 coff is | |
58 | the one you select, and that your coff flavour is called foo. | |
59 | Copy @file{i386coff.c} to @file{foocoff.c}, copy | |
60 | @file{../include/coff/i386.h} to @file{../include/coff/foo.h}, | |
61 | and add the lines to @file{targets.c} and @file{Makefile.in} | |
62 | so that your new back end is used. Alter the shapes of the | |
63 | structures in @file{../include/coff/foo.h} so that they match | |
64 | what you need. You will probably also have to add | |
65 | @code{#ifdef}s to the code in @file{coff/internal.h} and | |
66 | @file{coffcode.h} if your version of coff is too wild. | |
67 | ||
68 | You can verify that your new BFD backend works quite simply by | |
69 | building @file{objdump} from the @file{binutils} directory, | |
70 | and making sure that its version of what's going on and your | |
71 | host system's idea (assuming it has the pretty standard coff | |
72 | dump utility, usually called @code{att-dump} or just | |
73 | @code{dump}) are the same. Then clean up your code, and send | |
74 | what you've done to Cygnus. Then your stuff will be in the | |
75 | next release, and you won't have to keep integrating it. | |
76 | ||
77 | SUBSECTION | |
78 | How the coff backend works | |
79 | ||
80 | SUBSUBSECTION | |
81 | File layout | |
82 | ||
83 | The Coff backend is split into generic routines that are | |
84 | applicable to any Coff target and routines that are specific | |
85 | to a particular target. The target-specific routines are | |
86 | further split into ones which are basically the same for all | |
87 | Coff targets except that they use the external symbol format | |
88 | or use different values for certain constants. | |
89 | ||
90 | The generic routines are in @file{coffgen.c}. These routines | |
91 | work for any Coff target. They use some hooks into the target | |
92 | specific code; the hooks are in a @code{bfd_coff_backend_data} | |
93 | structure, one of which exists for each target. | |
94 | ||
95 | The essentially similar target-specific routines are in | |
96 | @file{coffcode.h}. This header file includes executable C code. | |
97 | The various Coff targets first include the appropriate Coff | |
98 | header file, make any special defines that are needed, and | |
99 | then include @file{coffcode.h}. | |
100 | ||
101 | Some of the Coff targets then also have additional routines in | |
102 | the target source file itself. | |
103 | ||
104 | For example, @file{coff-i960.c} includes | |
105 | @file{coff/internal.h} and @file{coff/i960.h}. It then | |
106 | defines a few constants, such as @code{I960}, and includes | |
107 | @file{coffcode.h}. Since the i960 has complex relocation | |
108 | types, @file{coff-i960.c} also includes some code to | |
109 | manipulate the i960 relocs. This code is not in | |
110 | @file{coffcode.h} because it would not be used by any other | |
111 | target. | |
112 | ||
113 | SUBSUBSECTION | |
114 | Bit twiddling | |
115 | ||
116 | Each flavour of coff supported in BFD has its own header file | |
117 | describing the external layout of the structures. There is also | |
118 | an internal description of the coff layout, in | |
119 | @file{coff/internal.h}. A major function of the | |
120 | coff backend is swapping the bytes and twiddling the bits to | |
121 | translate the external form of the structures into the normal | |
122 | internal form. This is all performed in the | |
123 | @code{bfd_swap}_@i{thing}_@i{direction} routines. Some | |
124 | elements are different sizes between different versions of | |
125 | coff; it is the duty of the coff version specific include file | |
126 | to override the definitions of various packing routines in | |
127 | @file{coffcode.h}. E.g., the size of line number entry in coff is | |
128 | sometimes 16 bits, and sometimes 32 bits. @code{#define}ing | |
129 | @code{PUT_LNSZ_LNNO} and @code{GET_LNSZ_LNNO} will select the | |
130 | correct one. No doubt, some day someone will find a version of | |
131 | coff which has a varying field size not catered to at the | |
132 | moment. To port BFD, that person will have to add more @code{#defines}. | |
133 | Three of the bit twiddling routines are exported to | |
134 | @code{gdb}; @code{coff_swap_aux_in}, @code{coff_swap_sym_in} | |
00692651 | 135 | and @code{coff_swap_lineno_in}. @code{GDB} reads the symbol |
252b5132 RH |
136 | table on its own, but uses BFD to fix things up. More of the |
137 | bit twiddlers are exported for @code{gas}; | |
138 | @code{coff_swap_aux_out}, @code{coff_swap_sym_out}, | |
139 | @code{coff_swap_lineno_out}, @code{coff_swap_reloc_out}, | |
140 | @code{coff_swap_filehdr_out}, @code{coff_swap_aouthdr_out}, | |
141 | @code{coff_swap_scnhdr_out}. @code{Gas} currently keeps track | |
142 | of all the symbol table and reloc drudgery itself, thereby | |
143 | saving the internal BFD overhead, but uses BFD to swap things | |
144 | on the way out, making cross ports much safer. Doing so also | |
145 | allows BFD (and thus the linker) to use the same header files | |
146 | as @code{gas}, which makes one avenue to disaster disappear. | |
147 | ||
148 | SUBSUBSECTION | |
149 | Symbol reading | |
150 | ||
151 | The simple canonical form for symbols used by BFD is not rich | |
152 | enough to keep all the information available in a coff symbol | |
153 | table. The back end gets around this problem by keeping the original | |
154 | symbol table around, "behind the scenes". | |
155 | ||
156 | When a symbol table is requested (through a call to | |
157 | @code{bfd_canonicalize_symtab}), a request gets through to | |
158 | @code{coff_get_normalized_symtab}. This reads the symbol table from | |
159 | the coff file and swaps all the structures inside into the | |
160 | internal form. It also fixes up all the pointers in the table | |
161 | (represented in the file by offsets from the first symbol in | |
162 | the table) into physical pointers to elements in the new | |
163 | internal table. This involves some work since the meanings of | |
164 | fields change depending upon context: a field that is a | |
165 | pointer to another structure in the symbol table at one moment | |
166 | may be the size in bytes of a structure at the next. Another | |
167 | pass is made over the table. All symbols which mark file names | |
168 | (<<C_FILE>> symbols) are modified so that the internal | |
169 | string points to the value in the auxent (the real filename) | |
170 | rather than the normal text associated with the symbol | |
171 | (@code{".file"}). | |
172 | ||
173 | At this time the symbol names are moved around. Coff stores | |
174 | all symbols less than nine characters long physically | |
175 | within the symbol table; longer strings are kept at the end of | |
176 | the file in the string table. This pass moves all strings | |
177 | into memory and replaces them with pointers to the strings. | |
178 | ||
252b5132 RH |
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 | .{ | |
dc810e39 AM |
251 | . {* Remembers the offset from the first symbol in the file for |
252 | . this symbol. Generated by coff_renumber_symbols. *} | |
253 | . unsigned int offset; | |
252b5132 | 254 | . |
dc810e39 AM |
255 | . {* Should the value of this symbol be renumbered. Used for |
256 | . XCOFF C_BSTAT symbols. Set by coff_slurp_symbol_table. *} | |
257 | . unsigned int fix_value : 1; | |
252b5132 | 258 | . |
dc810e39 AM |
259 | . {* Should the tag field of this symbol be renumbered. |
260 | . Created by coff_pointerize_aux. *} | |
261 | . unsigned int fix_tag : 1; | |
252b5132 | 262 | . |
dc810e39 AM |
263 | . {* Should the endidx field of this symbol be renumbered. |
264 | . Created by coff_pointerize_aux. *} | |
265 | . unsigned int fix_end : 1; | |
252b5132 | 266 | . |
dc810e39 AM |
267 | . {* Should the x_csect.x_scnlen field be renumbered. |
268 | . Created by coff_pointerize_aux. *} | |
269 | . unsigned int fix_scnlen : 1; | |
252b5132 | 270 | . |
dc810e39 AM |
271 | . {* Fix up an XCOFF C_BINCL/C_EINCL symbol. The value is the |
272 | . index into the line number entries. Set by coff_slurp_symbol_table. *} | |
273 | . unsigned int fix_line : 1; | |
252b5132 | 274 | . |
dc810e39 AM |
275 | . {* The container for the symbol structure as read and translated |
276 | . from the file. *} | |
277 | . union | |
278 | . { | |
279 | . union internal_auxent auxent; | |
280 | . struct internal_syment syment; | |
281 | . } u; | |
252b5132 RH |
282 | .} combined_entry_type; |
283 | . | |
284 | . | |
285 | .{* Each canonical asymbol really looks like this: *} | |
286 | . | |
287 | .typedef struct coff_symbol_struct | |
288 | .{ | |
dc810e39 AM |
289 | . {* The actual symbol which the rest of BFD works with *} |
290 | . asymbol symbol; | |
252b5132 | 291 | . |
dc810e39 AM |
292 | . {* A pointer to the hidden information for this symbol *} |
293 | . combined_entry_type *native; | |
252b5132 | 294 | . |
dc810e39 AM |
295 | . {* A pointer to the linenumber information for this symbol *} |
296 | . struct lineno_cache_entry *lineno; | |
252b5132 | 297 | . |
dc810e39 AM |
298 | . {* Have the line numbers been relocated yet ? *} |
299 | . boolean done_lineno; | |
252b5132 RH |
300 | .} coff_symbol_type; |
301 | ||
252b5132 RH |
302 | */ |
303 | ||
304 | #ifdef COFF_WITH_PE | |
305 | #include "peicode.h" | |
306 | #else | |
307 | #include "coffswap.h" | |
308 | #endif | |
309 | ||
310 | #define STRING_SIZE_SIZE (4) | |
311 | ||
312 | static long sec_to_styp_flags PARAMS ((const char *, flagword)); | |
7c8ca0e4 NC |
313 | static boolean styp_to_sec_flags |
314 | PARAMS ((bfd *, PTR, const char *, asection *, flagword *)); | |
252b5132 | 315 | static boolean coff_bad_format_hook PARAMS ((bfd *, PTR)); |
5dccc1dd ILT |
316 | static void coff_set_custom_section_alignment |
317 | PARAMS ((bfd *, asection *, const struct coff_section_alignment_entry *, | |
8a1ad8e7 | 318 | const unsigned int)); |
252b5132 RH |
319 | static boolean coff_new_section_hook PARAMS ((bfd *, asection *)); |
320 | static boolean coff_set_arch_mach_hook PARAMS ((bfd *, PTR)); | |
321 | static boolean coff_write_relocs PARAMS ((bfd *, int)); | |
322 | static boolean coff_set_flags | |
323 | PARAMS ((bfd *, unsigned int *, unsigned short *)); | |
324 | static boolean coff_set_arch_mach | |
dc810e39 | 325 | PARAMS ((bfd *, enum bfd_architecture, unsigned long)) ATTRIBUTE_UNUSED; |
252b5132 | 326 | static boolean coff_compute_section_file_positions PARAMS ((bfd *)); |
cea4409c | 327 | static boolean coff_write_object_contents PARAMS ((bfd *)) ATTRIBUTE_UNUSED; |
252b5132 RH |
328 | static boolean coff_set_section_contents |
329 | PARAMS ((bfd *, asection *, PTR, file_ptr, bfd_size_type)); | |
dc810e39 | 330 | static PTR buy_and_read PARAMS ((bfd *, file_ptr, bfd_size_type)); |
252b5132 RH |
331 | static boolean coff_slurp_line_table PARAMS ((bfd *, asection *)); |
332 | static boolean coff_slurp_symbol_table PARAMS ((bfd *)); | |
5d54c628 ILT |
333 | static enum coff_symbol_classification coff_classify_symbol |
334 | PARAMS ((bfd *, struct internal_syment *)); | |
252b5132 RH |
335 | static boolean coff_slurp_reloc_table PARAMS ((bfd *, asection *, asymbol **)); |
336 | static long coff_canonicalize_reloc | |
337 | PARAMS ((bfd *, asection *, arelent **, asymbol **)); | |
338 | #ifndef coff_mkobject_hook | |
339 | static PTR coff_mkobject_hook PARAMS ((bfd *, PTR, PTR)); | |
340 | #endif | |
1276aefa NC |
341 | #ifdef COFF_WITH_PE |
342 | static flagword handle_COMDAT PARAMS ((bfd *, flagword, PTR, const char *, asection *)); | |
343 | #endif | |
252b5132 RH |
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 | ||
51db3708 NC |
354 | /* Macros for setting debugging flags. */ |
355 | #ifdef STYP_DEBUG | |
356 | #define STYP_XCOFF_DEBUG STYP_DEBUG | |
357 | #else | |
358 | #define STYP_XCOFF_DEBUG STYP_INFO | |
359 | #endif | |
360 | ||
361 | #ifdef COFF_ALIGN_IN_S_FLAGS | |
362 | #define STYP_DEBUG_INFO STYP_DSECT | |
363 | #else | |
364 | #define STYP_DEBUG_INFO STYP_INFO | |
365 | #endif | |
366 | ||
252b5132 RH |
367 | static long |
368 | sec_to_styp_flags (sec_name, sec_flags) | |
dc810e39 | 369 | const char *sec_name; |
252b5132 RH |
370 | flagword sec_flags; |
371 | { | |
372 | long styp_flags = 0; | |
373 | ||
374 | if (!strcmp (sec_name, _TEXT)) | |
375 | { | |
376 | styp_flags = STYP_TEXT; | |
377 | } | |
378 | else if (!strcmp (sec_name, _DATA)) | |
379 | { | |
380 | styp_flags = STYP_DATA; | |
381 | } | |
382 | else if (!strcmp (sec_name, _BSS)) | |
383 | { | |
384 | styp_flags = STYP_BSS; | |
385 | #ifdef _COMMENT | |
386 | } | |
387 | else if (!strcmp (sec_name, _COMMENT)) | |
388 | { | |
389 | styp_flags = STYP_INFO; | |
390 | #endif /* _COMMENT */ | |
391 | #ifdef _LIB | |
392 | } | |
393 | else if (!strcmp (sec_name, _LIB)) | |
394 | { | |
395 | styp_flags = STYP_LIB; | |
396 | #endif /* _LIB */ | |
397 | #ifdef _LIT | |
398 | } | |
399 | else if (!strcmp (sec_name, _LIT)) | |
400 | { | |
401 | styp_flags = STYP_LIT; | |
402 | #endif /* _LIT */ | |
403 | } | |
51db3708 | 404 | else if (!strncmp (sec_name, ".debug", 6)) |
252b5132 | 405 | { |
51db3708 NC |
406 | /* Handle the XCOFF debug section and DWARF2 debug sections. */ |
407 | if (!sec_name[6]) | |
408 | styp_flags = STYP_XCOFF_DEBUG; | |
409 | else | |
410 | styp_flags = STYP_DEBUG_INFO; | |
252b5132 RH |
411 | } |
412 | else if (!strncmp (sec_name, ".stab", 5)) | |
413 | { | |
51db3708 NC |
414 | styp_flags = STYP_DEBUG_INFO; |
415 | } | |
416 | #ifdef COFF_LONG_SECTION_NAMES | |
417 | else if (!strncmp (sec_name, ".gnu.linkonce.wi.", 17)) | |
418 | { | |
419 | styp_flags = STYP_DEBUG_INFO; | |
252b5132 | 420 | } |
51db3708 | 421 | #endif |
252b5132 RH |
422 | #ifdef RS6000COFF_C |
423 | else if (!strcmp (sec_name, _PAD)) | |
424 | { | |
425 | styp_flags = STYP_PAD; | |
426 | } | |
427 | else if (!strcmp (sec_name, _LOADER)) | |
428 | { | |
429 | styp_flags = STYP_LOADER; | |
430 | } | |
67fdeebe TR |
431 | else if (!strcmp (sec_name, _EXCEPT)) |
432 | { | |
433 | styp_flags = STYP_EXCEPT; | |
434 | } | |
435 | else if (!strcmp (sec_name, _TYPCHK)) | |
436 | { | |
437 | styp_flags = STYP_TYPCHK; | |
438 | } | |
252b5132 RH |
439 | #endif |
440 | /* Try and figure out what it should be */ | |
441 | else if (sec_flags & SEC_CODE) | |
442 | { | |
443 | styp_flags = STYP_TEXT; | |
444 | } | |
445 | else if (sec_flags & SEC_DATA) | |
446 | { | |
447 | styp_flags = STYP_DATA; | |
448 | } | |
449 | else if (sec_flags & SEC_READONLY) | |
450 | { | |
451 | #ifdef STYP_LIT /* 29k readonly text/data section */ | |
452 | styp_flags = STYP_LIT; | |
453 | #else | |
454 | styp_flags = STYP_TEXT; | |
455 | #endif /* STYP_LIT */ | |
456 | } | |
457 | else if (sec_flags & SEC_LOAD) | |
458 | { | |
459 | styp_flags = STYP_TEXT; | |
460 | } | |
461 | else if (sec_flags & SEC_ALLOC) | |
462 | { | |
463 | styp_flags = STYP_BSS; | |
464 | } | |
465 | ||
34cbe64e TW |
466 | #ifdef STYP_CLINK |
467 | if (sec_flags & SEC_CLINK) | |
468 | styp_flags |= STYP_CLINK; | |
469 | #endif | |
470 | ||
471 | #ifdef STYP_BLOCK | |
472 | if (sec_flags & SEC_BLOCK) | |
473 | styp_flags |= STYP_BLOCK; | |
474 | #endif | |
475 | ||
252b5132 RH |
476 | #ifdef STYP_NOLOAD |
477 | if ((sec_flags & (SEC_NEVER_LOAD | SEC_COFF_SHARED_LIBRARY)) != 0) | |
478 | styp_flags |= STYP_NOLOAD; | |
479 | #endif | |
480 | ||
41733515 ILT |
481 | return styp_flags; |
482 | } | |
483 | ||
484 | #else /* COFF_WITH_PE */ | |
485 | ||
486 | /* The PE version; see above for the general comments. The non-PE | |
487 | case seems to be more guessing, and breaks PE format; specifically, | |
488 | .rdata is readonly, but it sure ain't text. Really, all this | |
489 | should be set up properly in gas (or whatever assembler is in use), | |
490 | and honor whatever objcopy/strip, etc. sent us as input. */ | |
491 | ||
492 | static long | |
493 | sec_to_styp_flags (sec_name, sec_flags) | |
494 | const char *sec_name ATTRIBUTE_UNUSED; | |
495 | flagword sec_flags; | |
496 | { | |
497 | long styp_flags = 0; | |
498 | ||
499 | /* caution: there are at least three groups of symbols that have | |
500 | very similar bits and meanings: IMAGE_SCN*, SEC_*, and STYP_*. | |
501 | SEC_* are the BFD internal flags, used for generic BFD | |
502 | information. STYP_* are the COFF section flags which appear in | |
503 | COFF files. IMAGE_SCN_* are the PE section flags which appear in | |
504 | PE files. The STYP_* flags and the IMAGE_SCN_* flags overlap, | |
505 | but there are more IMAGE_SCN_* flags. */ | |
506 | ||
507 | /* skip LOAD */ | |
508 | /* READONLY later */ | |
509 | /* skip RELOC */ | |
510 | if ((sec_flags & SEC_CODE) != 0) | |
511 | styp_flags |= IMAGE_SCN_CNT_CODE; | |
512 | if ((sec_flags & SEC_DATA) != 0) | |
513 | styp_flags |= IMAGE_SCN_CNT_INITIALIZED_DATA; | |
514 | if ((sec_flags & SEC_ALLOC) != 0 && (sec_flags & SEC_LOAD) == 0) | |
515 | styp_flags |= IMAGE_SCN_CNT_UNINITIALIZED_DATA; /* ==STYP_BSS */ | |
516 | /* skip ROM */ | |
dc810e39 | 517 | /* skip constRUCTOR */ |
41733515 ILT |
518 | /* skip CONTENTS */ |
519 | #ifdef STYP_NOLOAD | |
520 | if ((sec_flags & (SEC_NEVER_LOAD | SEC_COFF_SHARED_LIBRARY)) != 0) | |
521 | styp_flags |= STYP_NOLOAD; | |
522 | #endif | |
523 | if ((sec_flags & SEC_IS_COMMON) != 0) | |
252b5132 | 524 | styp_flags |= IMAGE_SCN_LNK_COMDAT; |
41733515 ILT |
525 | if ((sec_flags & SEC_DEBUGGING) != 0) |
526 | styp_flags |= IMAGE_SCN_MEM_DISCARDABLE; | |
527 | if ((sec_flags & SEC_EXCLUDE) != 0) | |
528 | styp_flags |= IMAGE_SCN_LNK_REMOVE; | |
529 | if ((sec_flags & SEC_NEVER_LOAD) != 0) | |
530 | styp_flags |= IMAGE_SCN_LNK_REMOVE; | |
531 | /* skip IN_MEMORY */ | |
532 | /* skip SORT */ | |
e60b52c6 KH |
533 | if (sec_flags & SEC_LINK_ONCE) |
534 | styp_flags |= IMAGE_SCN_LNK_COMDAT; | |
41733515 ILT |
535 | /* skip LINK_DUPLICATES */ |
536 | /* skip LINKER_CREATED */ | |
537 | ||
538 | /* For now, the read/write bits are mapped onto SEC_READONLY, even | |
539 | though the semantics don't quite match. The bits from the input | |
540 | are retained in pei_section_data(abfd, section)->pe_flags */ | |
541 | ||
e60b52c6 | 542 | styp_flags |= IMAGE_SCN_MEM_READ; /* always readable. */ |
41733515 ILT |
543 | if ((sec_flags & SEC_READONLY) == 0) |
544 | styp_flags |= IMAGE_SCN_MEM_WRITE; /* Invert READONLY for write */ | |
545 | if (sec_flags & SEC_CODE) | |
546 | styp_flags |= IMAGE_SCN_MEM_EXECUTE; /* CODE->EXECUTE */ | |
bd826630 | 547 | if (sec_flags & SEC_SHARED) |
41733515 | 548 | styp_flags |= IMAGE_SCN_MEM_SHARED; /* Shared remains meaningful */ |
252b5132 | 549 | |
e60b52c6 | 550 | return styp_flags; |
252b5132 | 551 | } |
41733515 ILT |
552 | |
553 | #endif /* COFF_WITH_PE */ | |
554 | ||
555 | /* Return a word with SEC_* flags set to represent the incoming STYP_* | |
556 | flags (from scnhdr.s_flags). The inverse of this function is | |
557 | sec_to_styp_flags(). NOTE: If you add to/change this routine, you | |
558 | should probably mirror the changes in sec_to_styp_flags(). */ | |
559 | ||
560 | #ifndef COFF_WITH_PE | |
561 | ||
7c8ca0e4 NC |
562 | static boolean |
563 | styp_to_sec_flags (abfd, hdr, name, section, flags_ptr) | |
5f771d47 | 564 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
565 | PTR hdr; |
566 | const char *name; | |
41733515 | 567 | asection *section ATTRIBUTE_UNUSED; |
7c8ca0e4 | 568 | flagword *flags_ptr; |
252b5132 RH |
569 | { |
570 | struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr; | |
571 | long styp_flags = internal_s->s_flags; | |
572 | flagword sec_flags = 0; | |
573 | ||
34cbe64e TW |
574 | #ifdef STYP_BLOCK |
575 | if (styp_flags & STYP_BLOCK) | |
7c8ca0e4 | 576 | sec_flags |= SEC_BLOCK; |
e60b52c6 | 577 | #endif |
34cbe64e TW |
578 | |
579 | #ifdef STYP_CLINK | |
580 | if (styp_flags & STYP_CLINK) | |
7c8ca0e4 | 581 | sec_flags |= SEC_CLINK; |
e60b52c6 | 582 | #endif |
34cbe64e | 583 | |
252b5132 RH |
584 | #ifdef STYP_NOLOAD |
585 | if (styp_flags & STYP_NOLOAD) | |
7c8ca0e4 | 586 | sec_flags |= SEC_NEVER_LOAD; |
252b5132 RH |
587 | #endif /* STYP_NOLOAD */ |
588 | ||
589 | /* For 386 COFF, at least, an unloadable text or data section is | |
590 | actually a shared library section. */ | |
591 | if (styp_flags & STYP_TEXT) | |
592 | { | |
593 | if (sec_flags & SEC_NEVER_LOAD) | |
594 | sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY; | |
595 | else | |
596 | sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
597 | } | |
598 | else if (styp_flags & STYP_DATA) | |
599 | { | |
600 | if (sec_flags & SEC_NEVER_LOAD) | |
601 | sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY; | |
602 | else | |
603 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
604 | } | |
605 | else if (styp_flags & STYP_BSS) | |
606 | { | |
607 | #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY | |
608 | if (sec_flags & SEC_NEVER_LOAD) | |
609 | sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY; | |
610 | else | |
611 | #endif | |
612 | sec_flags |= SEC_ALLOC; | |
613 | } | |
614 | else if (styp_flags & STYP_INFO) | |
615 | { | |
616 | /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is | |
617 | defined. coff_compute_section_file_positions uses | |
618 | COFF_PAGE_SIZE to ensure that the low order bits of the | |
619 | section VMA and the file offset match. If we don't know | |
620 | COFF_PAGE_SIZE, we can't ensure the correct correspondence, | |
621 | and demand page loading of the file will fail. */ | |
622 | #if defined (COFF_PAGE_SIZE) && !defined (COFF_ALIGN_IN_S_FLAGS) | |
623 | sec_flags |= SEC_DEBUGGING; | |
624 | #endif | |
625 | } | |
626 | else if (styp_flags & STYP_PAD) | |
7c8ca0e4 | 627 | sec_flags = 0; |
252b5132 RH |
628 | else if (strcmp (name, _TEXT) == 0) |
629 | { | |
630 | if (sec_flags & SEC_NEVER_LOAD) | |
631 | sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY; | |
632 | else | |
633 | sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
634 | } | |
635 | else if (strcmp (name, _DATA) == 0) | |
636 | { | |
637 | if (sec_flags & SEC_NEVER_LOAD) | |
638 | sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY; | |
639 | else | |
640 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
641 | } | |
642 | else if (strcmp (name, _BSS) == 0) | |
643 | { | |
644 | #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY | |
645 | if (sec_flags & SEC_NEVER_LOAD) | |
646 | sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY; | |
647 | else | |
648 | #endif | |
649 | sec_flags |= SEC_ALLOC; | |
650 | } | |
51db3708 | 651 | else if (strncmp (name, ".debug", 6) == 0 |
252b5132 RH |
652 | #ifdef _COMMENT |
653 | || strcmp (name, _COMMENT) == 0 | |
51db3708 NC |
654 | #endif |
655 | #ifdef COFF_LONG_SECTION_NAMES | |
656 | || strncmp (name, ".gnu.linkonce.wi.", 17) == 0 | |
252b5132 RH |
657 | #endif |
658 | || strncmp (name, ".stab", 5) == 0) | |
659 | { | |
660 | #ifdef COFF_PAGE_SIZE | |
661 | sec_flags |= SEC_DEBUGGING; | |
662 | #endif | |
663 | } | |
664 | #ifdef _LIB | |
665 | else if (strcmp (name, _LIB) == 0) | |
666 | ; | |
667 | #endif | |
668 | #ifdef _LIT | |
669 | else if (strcmp (name, _LIT) == 0) | |
7c8ca0e4 | 670 | sec_flags = SEC_LOAD | SEC_ALLOC | SEC_READONLY; |
252b5132 RH |
671 | #endif |
672 | else | |
7c8ca0e4 | 673 | sec_flags |= SEC_ALLOC | SEC_LOAD; |
252b5132 RH |
674 | |
675 | #ifdef STYP_LIT /* A29k readonly text/data section type */ | |
676 | if ((styp_flags & STYP_LIT) == STYP_LIT) | |
7c8ca0e4 | 677 | sec_flags = (SEC_LOAD | SEC_ALLOC | SEC_READONLY); |
252b5132 | 678 | #endif /* STYP_LIT */ |
7c8ca0e4 | 679 | |
252b5132 RH |
680 | #ifdef STYP_OTHER_LOAD /* Other loaded sections */ |
681 | if (styp_flags & STYP_OTHER_LOAD) | |
7c8ca0e4 | 682 | sec_flags = (SEC_LOAD | SEC_ALLOC); |
252b5132 RH |
683 | #endif /* STYP_SDATA */ |
684 | ||
41733515 ILT |
685 | #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE) |
686 | /* As a GNU extension, if the name begins with .gnu.linkonce, we | |
687 | only link a single copy of the section. This is used to support | |
688 | g++. g++ will emit each template expansion in its own section. | |
689 | The symbols will be defined as weak, so that multiple definitions | |
690 | are permitted. The GNU linker extension is to actually discard | |
691 | all but one of the sections. */ | |
692 | if (strncmp (name, ".gnu.linkonce", sizeof ".gnu.linkonce" - 1) == 0) | |
693 | sec_flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
694 | #endif | |
695 | ||
7c8ca0e4 NC |
696 | if (flags_ptr == NULL) |
697 | return false; | |
698 | ||
699 | * flags_ptr = sec_flags; | |
700 | return true; | |
41733515 ILT |
701 | } |
702 | ||
703 | #else /* COFF_WITH_PE */ | |
704 | ||
41733515 | 705 | static flagword |
1276aefa NC |
706 | handle_COMDAT (abfd, sec_flags, hdr, name, section) |
707 | bfd * abfd; | |
708 | flagword sec_flags; | |
41733515 ILT |
709 | PTR hdr; |
710 | const char *name; | |
711 | asection *section; | |
712 | { | |
713 | struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr; | |
1276aefa NC |
714 | bfd_byte *esymstart, *esym, *esymend; |
715 | int seen_state = 0; | |
716 | char *target_name = NULL; | |
717 | ||
718 | sec_flags |= SEC_LINK_ONCE; | |
719 | ||
720 | /* Unfortunately, the PE format stores essential information in | |
721 | the symbol table, of all places. We need to extract that | |
722 | information now, so that objdump and the linker will know how | |
723 | to handle the section without worrying about the symbols. We | |
724 | can't call slurp_symtab, because the linker doesn't want the | |
725 | swapped symbols. */ | |
726 | ||
727 | /* COMDAT sections are special. The first symbol is the section | |
728 | symbol, which tells what kind of COMDAT section it is. The | |
729 | second symbol is the "comdat symbol" - the one with the | |
730 | unique name. GNU uses the section symbol for the unique | |
731 | name; MS uses ".text" for every comdat section. Sigh. - DJ */ | |
732 | ||
733 | /* This is not mirrored in sec_to_styp_flags(), but there | |
734 | doesn't seem to be a need to, either, and it would at best be | |
735 | rather messy. */ | |
736 | ||
737 | if (! _bfd_coff_get_external_symbols (abfd)) | |
738 | return sec_flags; | |
dc810e39 | 739 | |
1276aefa NC |
740 | esymstart = esym = (bfd_byte *) obj_coff_external_syms (abfd); |
741 | esymend = esym + obj_raw_syment_count (abfd) * bfd_coff_symesz (abfd); | |
742 | ||
743 | while (esym < esymend) | |
41733515 | 744 | { |
1276aefa NC |
745 | struct internal_syment isym; |
746 | char buf[SYMNMLEN + 1]; | |
747 | const char *symname; | |
252b5132 | 748 | |
1276aefa | 749 | bfd_coff_swap_sym_in (abfd, (PTR) esym, (PTR) &isym); |
252b5132 | 750 | |
1276aefa NC |
751 | if (sizeof (internal_s->s_name) > SYMNMLEN) |
752 | { | |
753 | /* This case implies that the matching | |
754 | symbol name will be in the string table. */ | |
755 | abort (); | |
756 | } | |
757 | ||
758 | if (isym.n_scnum == section->target_index) | |
759 | { | |
760 | /* According to the MSVC documentation, the first | |
761 | TWO entries with the section # are both of | |
762 | interest to us. The first one is the "section | |
763 | symbol" (section name). The second is the comdat | |
764 | symbol name. Here, we've found the first | |
765 | qualifying entry; we distinguish it from the | |
766 | second with a state flag. | |
767 | ||
768 | In the case of gas-generated (at least until that | |
769 | is fixed) .o files, it isn't necessarily the | |
770 | second one. It may be some other later symbol. | |
771 | ||
772 | Since gas also doesn't follow MS conventions and | |
773 | emits the section similar to .text$<name>, where | |
774 | <something> is the name we're looking for, we | |
775 | distinguish the two as follows: | |
776 | ||
777 | If the section name is simply a section name (no | |
778 | $) we presume it's MS-generated, and look at | |
779 | precisely the second symbol for the comdat name. | |
780 | If the section name has a $, we assume it's | |
781 | gas-generated, and look for <something> (whatever | |
782 | follows the $) as the comdat symbol. */ | |
783 | ||
784 | /* All 3 branches use this */ | |
785 | symname = _bfd_coff_internal_syment_name (abfd, &isym, buf); | |
786 | ||
787 | if (symname == NULL) | |
788 | abort (); | |
789 | ||
790 | switch (seen_state) | |
252b5132 | 791 | { |
1276aefa NC |
792 | case 0: |
793 | { | |
794 | /* The first time we've seen the symbol. */ | |
795 | union internal_auxent aux; | |
796 | ||
797 | seen_state = 1; | |
798 | ||
799 | /* If it isn't the stuff we're expecting, die; | |
800 | The MS documentation is vague, but it | |
801 | appears that the second entry serves BOTH | |
802 | as the comdat symbol and the defining | |
803 | symbol record (either C_STAT or C_EXT, | |
804 | possibly with an aux entry with debug | |
805 | information if it's a function.) It | |
806 | appears the only way to find the second one | |
807 | is to count. (On Intel, they appear to be | |
808 | adjacent, but on Alpha, they have been | |
809 | found separated.) | |
810 | ||
811 | Here, we think we've found the first one, | |
812 | but there's some checking we can do to be | |
813 | sure. */ | |
814 | ||
815 | if (! (isym.n_sclass == C_STAT | |
816 | && isym.n_type == T_NULL | |
817 | && isym.n_value == 0)) | |
818 | abort (); | |
252b5132 | 819 | |
1276aefa NC |
820 | /* FIXME LATER: MSVC generates section names |
821 | like .text for comdats. Gas generates | |
822 | names like .text$foo__Fv (in the case of a | |
823 | function). See comment above for more. */ | |
252b5132 | 824 | |
1276aefa | 825 | if (strcmp (name, symname) != 0) |
252b5132 | 826 | abort (); |
252b5132 | 827 | |
1276aefa NC |
828 | /* This is the section symbol. */ |
829 | bfd_coff_swap_aux_in (abfd, (PTR) (esym + bfd_coff_symesz (abfd)), | |
830 | isym.n_type, isym.n_sclass, | |
831 | 0, isym.n_numaux, (PTR) &aux); | |
832 | ||
833 | target_name = strchr (name, '$'); | |
834 | if (target_name != NULL) | |
835 | { | |
836 | /* Gas mode. */ | |
837 | seen_state = 2; | |
838 | /* Skip the `$'. */ | |
839 | target_name += 1; | |
840 | } | |
841 | ||
842 | /* FIXME: Microsoft uses NODUPLICATES and | |
843 | ASSOCIATIVE, but gnu uses ANY and | |
844 | SAME_SIZE. Unfortunately, gnu doesn't do | |
845 | the comdat symbols right. So, until we can | |
846 | fix it to do the right thing, we are | |
847 | temporarily disabling comdats for the MS | |
848 | types (they're used in DLLs and C++, but we | |
849 | don't support *their* C++ libraries anyway | |
850 | - DJ. */ | |
851 | ||
852 | /* Cygwin does not follow the MS style, and | |
853 | uses ANY and SAME_SIZE where NODUPLICATES | |
854 | and ASSOCIATIVE should be used. For | |
855 | Interix, we just do the right thing up | |
856 | front. */ | |
857 | ||
858 | switch (aux.x_scn.x_comdat) | |
859 | { | |
860 | case IMAGE_COMDAT_SELECT_NODUPLICATES: | |
e60b52c6 | 861 | #ifdef STRICT_PE_FORMAT |
1276aefa | 862 | sec_flags |= SEC_LINK_DUPLICATES_ONE_ONLY; |
ec0ef80e | 863 | #else |
1276aefa | 864 | sec_flags &= ~SEC_LINK_ONCE; |
ec0ef80e | 865 | #endif |
1276aefa | 866 | break; |
252b5132 | 867 | |
1276aefa NC |
868 | case IMAGE_COMDAT_SELECT_ANY: |
869 | sec_flags |= SEC_LINK_DUPLICATES_DISCARD; | |
870 | break; | |
252b5132 | 871 | |
1276aefa NC |
872 | case IMAGE_COMDAT_SELECT_SAME_SIZE: |
873 | sec_flags |= SEC_LINK_DUPLICATES_SAME_SIZE; | |
874 | break; | |
252b5132 | 875 | |
1276aefa NC |
876 | case IMAGE_COMDAT_SELECT_EXACT_MATCH: |
877 | /* Not yet fully implemented ??? */ | |
878 | sec_flags |= SEC_LINK_DUPLICATES_SAME_CONTENTS; | |
879 | break; | |
252b5132 | 880 | |
1276aefa NC |
881 | /* debug$S gets this case; other |
882 | implications ??? */ | |
e5db213d | 883 | |
1276aefa NC |
884 | /* There may be no symbol... we'll search |
885 | the whole table... Is this the right | |
886 | place to play this game? Or should we do | |
887 | it when reading it in. */ | |
888 | case IMAGE_COMDAT_SELECT_ASSOCIATIVE: | |
0717ebb7 | 889 | #ifdef STRICT_PE_FORMAT |
1276aefa NC |
890 | /* FIXME: This is not currently implemented. */ |
891 | sec_flags |= SEC_LINK_DUPLICATES_DISCARD; | |
ec0ef80e | 892 | #else |
1276aefa | 893 | sec_flags &= ~SEC_LINK_ONCE; |
ec0ef80e | 894 | #endif |
1276aefa | 895 | break; |
e5db213d | 896 | |
1276aefa NC |
897 | default: /* 0 means "no symbol" */ |
898 | /* debug$F gets this case; other | |
899 | implications ??? */ | |
900 | sec_flags |= SEC_LINK_DUPLICATES_DISCARD; | |
901 | break; | |
902 | } | |
903 | } | |
904 | break; | |
41733515 | 905 | |
1276aefa NC |
906 | case 2: |
907 | /* Gas mode: the first matching on partial name. */ | |
252b5132 | 908 | |
e5db213d ILT |
909 | #ifndef TARGET_UNDERSCORE |
910 | #define TARGET_UNDERSCORE 0 | |
911 | #endif | |
1276aefa NC |
912 | /* Is this the name we're looking for? */ |
913 | if (strcmp (target_name, | |
914 | symname + (TARGET_UNDERSCORE ? 1 : 0)) != 0) | |
915 | { | |
916 | /* Not the name we're looking for */ | |
917 | esym += (isym.n_numaux + 1) * bfd_coff_symesz (abfd); | |
918 | continue; | |
252b5132 | 919 | } |
1276aefa NC |
920 | /* Fall through. */ |
921 | case 1: | |
922 | /* MSVC mode: the lexically second symbol (or | |
923 | drop through from the above). */ | |
924 | { | |
925 | char *newname; | |
dc810e39 | 926 | bfd_size_type amt; |
1276aefa | 927 | |
08da05b0 | 928 | /* This must the second symbol with the |
1276aefa NC |
929 | section #. It is the actual symbol name. |
930 | Intel puts the two adjacent, but Alpha (at | |
931 | least) spreads them out. */ | |
932 | ||
dc810e39 AM |
933 | amt = sizeof (struct bfd_comdat_info); |
934 | section->comdat = bfd_alloc (abfd, amt); | |
1276aefa NC |
935 | if (section->comdat == NULL) |
936 | abort (); | |
937 | ||
938 | section->comdat->symbol = | |
939 | (esym - esymstart) / bfd_coff_symesz (abfd); | |
940 | ||
dc810e39 AM |
941 | amt = strlen (symname) + 1; |
942 | newname = bfd_alloc (abfd, amt); | |
1276aefa NC |
943 | if (newname == NULL) |
944 | abort (); | |
945 | ||
946 | strcpy (newname, symname); | |
947 | section->comdat->name = newname; | |
948 | } | |
252b5132 | 949 | |
1276aefa | 950 | goto breakloop; |
252b5132 RH |
951 | } |
952 | } | |
1276aefa NC |
953 | |
954 | esym += (isym.n_numaux + 1) * bfd_coff_symesz (abfd); | |
955 | } | |
956 | ||
957 | breakloop: | |
958 | return sec_flags; | |
959 | } | |
960 | ||
961 | ||
962 | /* The PE version; see above for the general comments. | |
963 | ||
964 | Since to set the SEC_LINK_ONCE and associated flags, we have to | |
965 | look at the symbol table anyway, we return the symbol table index | |
966 | of the symbol being used as the COMDAT symbol. This is admittedly | |
967 | ugly, but there's really nowhere else that we have access to the | |
968 | required information. FIXME: Is the COMDAT symbol index used for | |
969 | any purpose other than objdump? */ | |
970 | ||
7c8ca0e4 NC |
971 | static boolean |
972 | styp_to_sec_flags (abfd, hdr, name, section, flags_ptr) | |
1276aefa NC |
973 | bfd *abfd; |
974 | PTR hdr; | |
975 | const char *name; | |
976 | asection *section; | |
7c8ca0e4 | 977 | flagword *flags_ptr; |
1276aefa NC |
978 | { |
979 | struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr; | |
980 | long styp_flags = internal_s->s_flags; | |
981 | flagword sec_flags; | |
7c8ca0e4 | 982 | boolean result = true; |
1276aefa NC |
983 | |
984 | /* Assume read only unless IMAGE_SCN_MEM_WRITE is specified. */ | |
985 | sec_flags = SEC_READONLY; | |
986 | ||
987 | /* Process each flag bit in styp_flags in turn. */ | |
988 | while (styp_flags) | |
989 | { | |
990 | long flag = styp_flags & - styp_flags; | |
991 | char * unhandled = NULL; | |
dc810e39 | 992 | |
1276aefa NC |
993 | styp_flags &= ~ flag; |
994 | ||
995 | /* We infer from the distinct read/write/execute bits the settings | |
996 | of some of the bfd flags; the actual values, should we need them, | |
997 | are also in pei_section_data (abfd, section)->pe_flags. */ | |
998 | ||
999 | switch (flag) | |
1000 | { | |
1001 | case STYP_DSECT: | |
1002 | unhandled = "STYP_DSECT"; | |
1003 | break; | |
1004 | case STYP_GROUP: | |
1005 | unhandled = "STYP_GROUP"; | |
1006 | break; | |
1007 | case STYP_COPY: | |
1008 | unhandled = "STYP_COPY"; | |
1009 | break; | |
1010 | case STYP_OVER: | |
1011 | unhandled = "STYP_OVER"; | |
1012 | break; | |
1013 | #ifdef SEC_NEVER_LOAD | |
1014 | case STYP_NOLOAD: | |
1015 | sec_flags |= SEC_NEVER_LOAD; | |
1016 | break; | |
dc810e39 | 1017 | #endif |
1276aefa NC |
1018 | case IMAGE_SCN_MEM_READ: |
1019 | /* Ignored, assume it always to be true. */ | |
1020 | break; | |
1021 | case IMAGE_SCN_TYPE_NO_PAD: | |
1022 | /* Skip. */ | |
1023 | break; | |
1024 | case IMAGE_SCN_LNK_OTHER: | |
1025 | unhandled = "IMAGE_SCN_LNK_OTHER"; | |
1026 | break; | |
1027 | case IMAGE_SCN_MEM_NOT_CACHED: | |
1028 | unhandled = "IMAGE_SCN_MEM_NOT_CACHED"; | |
1029 | break; | |
1030 | case IMAGE_SCN_MEM_NOT_PAGED: | |
1031 | unhandled = "IMAGE_SCN_MEM_NOT_PAGED"; | |
1032 | break; | |
1033 | case IMAGE_SCN_MEM_EXECUTE: | |
1034 | sec_flags |= SEC_CODE; | |
1035 | break; | |
1036 | case IMAGE_SCN_MEM_WRITE: | |
1037 | sec_flags &= ~ SEC_READONLY; | |
1038 | break; | |
1039 | case IMAGE_SCN_MEM_DISCARDABLE: | |
1040 | sec_flags |= SEC_DEBUGGING; | |
1041 | break; | |
1042 | case IMAGE_SCN_MEM_SHARED: | |
1043 | sec_flags |= SEC_SHARED; | |
1044 | break; | |
1045 | case IMAGE_SCN_LNK_REMOVE: | |
1046 | sec_flags |= SEC_EXCLUDE; | |
1047 | break; | |
1048 | case IMAGE_SCN_CNT_CODE: | |
1049 | sec_flags |= SEC_CODE | SEC_ALLOC | SEC_LOAD; | |
1050 | break; | |
1051 | case IMAGE_SCN_CNT_INITIALIZED_DATA: | |
1052 | sec_flags |= SEC_DATA | SEC_ALLOC | SEC_LOAD; | |
1053 | break; | |
1054 | case IMAGE_SCN_CNT_UNINITIALIZED_DATA: | |
1055 | sec_flags |= SEC_ALLOC; | |
1056 | break; | |
1057 | case IMAGE_SCN_LNK_INFO: | |
1058 | /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is | |
1059 | defined. coff_compute_section_file_positions uses | |
1060 | COFF_PAGE_SIZE to ensure that the low order bits of the | |
1061 | section VMA and the file offset match. If we don't know | |
1062 | COFF_PAGE_SIZE, we can't ensure the correct correspondence, | |
1063 | and demand page loading of the file will fail. */ | |
1064 | #ifdef COFF_PAGE_SIZE | |
1065 | sec_flags |= SEC_DEBUGGING; | |
1066 | #endif | |
1067 | break; | |
1068 | case IMAGE_SCN_LNK_COMDAT: | |
1069 | /* COMDAT gets very special treatment. */ | |
1070 | sec_flags = handle_COMDAT (abfd, sec_flags, hdr, name, section); | |
1071 | break; | |
1072 | default: | |
1073 | /* Silently ignore for now. */ | |
dc810e39 | 1074 | break; |
1276aefa NC |
1075 | } |
1076 | ||
7c8ca0e4 | 1077 | /* If the section flag was not handled, report it here. */ |
1276aefa | 1078 | if (unhandled != NULL) |
7c8ca0e4 NC |
1079 | { |
1080 | (*_bfd_error_handler) | |
1081 | (_("%s (%s): Section flag %s (0x%x) ignored"), | |
8f615d07 | 1082 | bfd_archive_filename (abfd), name, unhandled, flag); |
7c8ca0e4 NC |
1083 | result = false; |
1084 | } | |
252b5132 | 1085 | } |
252b5132 | 1086 | |
242eabea ILT |
1087 | #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE) |
1088 | /* As a GNU extension, if the name begins with .gnu.linkonce, we | |
1089 | only link a single copy of the section. This is used to support | |
1090 | g++. g++ will emit each template expansion in its own section. | |
1091 | The symbols will be defined as weak, so that multiple definitions | |
1092 | are permitted. The GNU linker extension is to actually discard | |
1093 | all but one of the sections. */ | |
1094 | if (strncmp (name, ".gnu.linkonce", sizeof ".gnu.linkonce" - 1) == 0) | |
1095 | sec_flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
1096 | #endif | |
1097 | ||
7c8ca0e4 NC |
1098 | if (flags_ptr) |
1099 | * flags_ptr = sec_flags; | |
dc810e39 | 1100 | |
7c8ca0e4 | 1101 | return result; |
252b5132 RH |
1102 | } |
1103 | ||
41733515 ILT |
1104 | #endif /* COFF_WITH_PE */ |
1105 | ||
252b5132 RH |
1106 | #define get_index(symbol) ((symbol)->udata.i) |
1107 | ||
1108 | /* | |
1109 | INTERNAL_DEFINITION | |
1110 | bfd_coff_backend_data | |
1111 | ||
1112 | CODE_FRAGMENT | |
1113 | ||
5d54c628 ILT |
1114 | .{* COFF symbol classifications. *} |
1115 | . | |
1116 | .enum coff_symbol_classification | |
1117 | .{ | |
1118 | . {* Global symbol. *} | |
1119 | . COFF_SYMBOL_GLOBAL, | |
1120 | . {* Common symbol. *} | |
1121 | . COFF_SYMBOL_COMMON, | |
1122 | . {* Undefined symbol. *} | |
1123 | . COFF_SYMBOL_UNDEFINED, | |
1124 | . {* Local symbol. *} | |
1125 | . COFF_SYMBOL_LOCAL, | |
1126 | . {* PE section symbol. *} | |
1127 | . COFF_SYMBOL_PE_SECTION | |
1128 | .}; | |
1129 | . | |
252b5132 RH |
1130 | Special entry points for gdb to swap in coff symbol table parts: |
1131 | .typedef struct | |
1132 | .{ | |
dc810e39 AM |
1133 | . void (*_bfd_coff_swap_aux_in) |
1134 | . PARAMS ((bfd *, PTR, int, int, int, int, PTR)); | |
252b5132 | 1135 | . |
dc810e39 AM |
1136 | . void (*_bfd_coff_swap_sym_in) |
1137 | . PARAMS ((bfd *, PTR, PTR)); | |
252b5132 | 1138 | . |
dc810e39 AM |
1139 | . void (*_bfd_coff_swap_lineno_in) |
1140 | . PARAMS ((bfd *, PTR, PTR)); | |
252b5132 | 1141 | . |
dc810e39 AM |
1142 | . unsigned int (*_bfd_coff_swap_aux_out) |
1143 | . PARAMS ((bfd *, PTR, int, int, int, int, PTR)); | |
252b5132 | 1144 | . |
dc810e39 AM |
1145 | . unsigned int (*_bfd_coff_swap_sym_out) |
1146 | . PARAMS ((bfd *, PTR, PTR)); | |
252b5132 | 1147 | . |
dc810e39 AM |
1148 | . unsigned int (*_bfd_coff_swap_lineno_out) |
1149 | . PARAMS ((bfd *, PTR, PTR)); | |
252b5132 | 1150 | . |
dc810e39 AM |
1151 | . unsigned int (*_bfd_coff_swap_reloc_out) |
1152 | . PARAMS ((bfd *, PTR, PTR)); | |
252b5132 | 1153 | . |
dc810e39 AM |
1154 | . unsigned int (*_bfd_coff_swap_filehdr_out) |
1155 | . PARAMS ((bfd *, PTR, PTR)); | |
252b5132 | 1156 | . |
dc810e39 AM |
1157 | . unsigned int (*_bfd_coff_swap_aouthdr_out) |
1158 | . PARAMS ((bfd *, PTR, PTR)); | |
252b5132 | 1159 | . |
dc810e39 AM |
1160 | . unsigned int (*_bfd_coff_swap_scnhdr_out) |
1161 | . PARAMS ((bfd *, PTR, PTR)); | |
252b5132 | 1162 | . |
dc810e39 AM |
1163 | . unsigned int _bfd_filhsz; |
1164 | . unsigned int _bfd_aoutsz; | |
1165 | . unsigned int _bfd_scnhsz; | |
1166 | . unsigned int _bfd_symesz; | |
1167 | . unsigned int _bfd_auxesz; | |
1168 | . unsigned int _bfd_relsz; | |
1169 | . unsigned int _bfd_linesz; | |
1170 | . unsigned int _bfd_filnmlen; | |
1171 | . boolean _bfd_coff_long_filenames; | |
1172 | . boolean _bfd_coff_long_section_names; | |
1173 | . unsigned int _bfd_coff_default_section_alignment_power; | |
1174 | . boolean _bfd_coff_force_symnames_in_strings; | |
1175 | . unsigned int _bfd_coff_debug_string_prefix_length; | |
1176 | . | |
1177 | . void (*_bfd_coff_swap_filehdr_in) | |
1178 | . PARAMS ((bfd *, PTR, PTR)); | |
1179 | . | |
1180 | . void (*_bfd_coff_swap_aouthdr_in) | |
1181 | . PARAMS ((bfd *, PTR, PTR)); | |
1182 | . | |
1183 | . void (*_bfd_coff_swap_scnhdr_in) | |
1184 | . PARAMS ((bfd *, PTR, PTR)); | |
1185 | . | |
1186 | . void (*_bfd_coff_swap_reloc_in) | |
1187 | . PARAMS ((bfd *abfd, PTR, PTR)); | |
1188 | . | |
1189 | . boolean (*_bfd_coff_bad_format_hook) | |
1190 | . PARAMS ((bfd *, PTR)); | |
1191 | . | |
1192 | . boolean (*_bfd_coff_set_arch_mach_hook) | |
1193 | . PARAMS ((bfd *, PTR)); | |
1194 | . | |
1195 | . PTR (*_bfd_coff_mkobject_hook) | |
1196 | . PARAMS ((bfd *, PTR, PTR)); | |
1197 | . | |
1198 | . boolean (*_bfd_styp_to_sec_flags_hook) | |
1199 | . PARAMS ((bfd *, PTR, const char *, asection *, flagword *)); | |
1200 | . | |
1201 | . void (*_bfd_set_alignment_hook) | |
1202 | . PARAMS ((bfd *, asection *, PTR)); | |
1203 | . | |
1204 | . boolean (*_bfd_coff_slurp_symbol_table) | |
1205 | . PARAMS ((bfd *)); | |
1206 | . | |
1207 | . boolean (*_bfd_coff_symname_in_debug) | |
1208 | . PARAMS ((bfd *, struct internal_syment *)); | |
1209 | . | |
1210 | . boolean (*_bfd_coff_pointerize_aux_hook) | |
1211 | . PARAMS ((bfd *, combined_entry_type *, combined_entry_type *, | |
1212 | . unsigned int, combined_entry_type *)); | |
1213 | . | |
1214 | . boolean (*_bfd_coff_print_aux) | |
1215 | . PARAMS ((bfd *, FILE *, combined_entry_type *, combined_entry_type *, | |
1216 | . combined_entry_type *, unsigned int)); | |
1217 | . | |
1218 | . void (*_bfd_coff_reloc16_extra_cases) | |
1219 | . PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *, | |
1220 | . bfd_byte *, unsigned int *, unsigned int *)); | |
1221 | . | |
1222 | . int (*_bfd_coff_reloc16_estimate) | |
1223 | . PARAMS ((bfd *, asection *, arelent *, unsigned int, | |
1224 | . struct bfd_link_info *)); | |
1225 | . | |
1226 | . enum coff_symbol_classification (*_bfd_coff_classify_symbol) | |
1227 | . PARAMS ((bfd *, struct internal_syment *)); | |
1228 | . | |
1229 | . boolean (*_bfd_coff_compute_section_file_positions) | |
1230 | . PARAMS ((bfd *)); | |
252b5132 | 1231 | . |
dc810e39 AM |
1232 | . boolean (*_bfd_coff_start_final_link) |
1233 | . PARAMS ((bfd *, struct bfd_link_info *)); | |
1234 | . | |
1235 | . boolean (*_bfd_coff_relocate_section) | |
1236 | . PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, | |
1237 | . struct internal_reloc *, struct internal_syment *, asection **)); | |
1238 | . | |
1239 | . reloc_howto_type *(*_bfd_coff_rtype_to_howto) | |
1240 | . PARAMS ((bfd *, asection *, struct internal_reloc *, | |
1241 | . struct coff_link_hash_entry *, struct internal_syment *, | |
1242 | . bfd_vma *)); | |
1243 | . | |
1244 | . boolean (*_bfd_coff_adjust_symndx)\ | |
1245 | . PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, | |
1246 | . struct internal_reloc *, boolean *)); | |
1247 | . | |
1248 | . boolean (*_bfd_coff_link_add_one_symbol) | |
1249 | . PARAMS ((struct bfd_link_info *, bfd *, const char *, flagword, | |
1250 | . asection *, bfd_vma, const char *, boolean, boolean, | |
1251 | . struct bfd_link_hash_entry **)); | |
1252 | . | |
1253 | . boolean (*_bfd_coff_link_output_has_begun) | |
1254 | . PARAMS ((bfd *, struct coff_final_link_info *)); | |
1255 | . | |
1256 | . boolean (*_bfd_coff_final_link_postscript) | |
1257 | . PARAMS ((bfd *, struct coff_final_link_info *)); | |
252b5132 RH |
1258 | . |
1259 | .} bfd_coff_backend_data; | |
1260 | . | |
dc810e39 AM |
1261 | .#define coff_backend_info(abfd) \ |
1262 | . ((bfd_coff_backend_data *) (abfd)->xvec->backend_data) | |
252b5132 RH |
1263 | . |
1264 | .#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \ | |
dc810e39 | 1265 | . ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i)) |
252b5132 RH |
1266 | . |
1267 | .#define bfd_coff_swap_sym_in(a,e,i) \ | |
dc810e39 | 1268 | . ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i)) |
252b5132 RH |
1269 | . |
1270 | .#define bfd_coff_swap_lineno_in(a,e,i) \ | |
dc810e39 | 1271 | . ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i)) |
252b5132 RH |
1272 | . |
1273 | .#define bfd_coff_swap_reloc_out(abfd, i, o) \ | |
dc810e39 | 1274 | . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o)) |
252b5132 RH |
1275 | . |
1276 | .#define bfd_coff_swap_lineno_out(abfd, i, o) \ | |
dc810e39 | 1277 | . ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o)) |
252b5132 RH |
1278 | . |
1279 | .#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \ | |
dc810e39 | 1280 | . ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o)) |
252b5132 RH |
1281 | . |
1282 | .#define bfd_coff_swap_sym_out(abfd, i,o) \ | |
dc810e39 | 1283 | . ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o)) |
252b5132 RH |
1284 | . |
1285 | .#define bfd_coff_swap_scnhdr_out(abfd, i,o) \ | |
dc810e39 | 1286 | . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o)) |
252b5132 RH |
1287 | . |
1288 | .#define bfd_coff_swap_filehdr_out(abfd, i,o) \ | |
dc810e39 | 1289 | . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o)) |
252b5132 RH |
1290 | . |
1291 | .#define bfd_coff_swap_aouthdr_out(abfd, i,o) \ | |
dc810e39 | 1292 | . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o)) |
252b5132 RH |
1293 | . |
1294 | .#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz) | |
1295 | .#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz) | |
1296 | .#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz) | |
1297 | .#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz) | |
1298 | .#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz) | |
1299 | .#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz) | |
1300 | .#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz) | |
692b7d62 | 1301 | .#define bfd_coff_filnmlen(abfd) (coff_backend_info (abfd)->_bfd_filnmlen) |
dc810e39 AM |
1302 | .#define bfd_coff_long_filenames(abfd) \ |
1303 | . (coff_backend_info (abfd)->_bfd_coff_long_filenames) | |
252b5132 | 1304 | .#define bfd_coff_long_section_names(abfd) \ |
dc810e39 | 1305 | . (coff_backend_info (abfd)->_bfd_coff_long_section_names) |
252b5132 | 1306 | .#define bfd_coff_default_section_alignment_power(abfd) \ |
dc810e39 | 1307 | . (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power) |
252b5132 | 1308 | .#define bfd_coff_swap_filehdr_in(abfd, i,o) \ |
dc810e39 | 1309 | . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o)) |
252b5132 RH |
1310 | . |
1311 | .#define bfd_coff_swap_aouthdr_in(abfd, i,o) \ | |
dc810e39 | 1312 | . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o)) |
252b5132 RH |
1313 | . |
1314 | .#define bfd_coff_swap_scnhdr_in(abfd, i,o) \ | |
dc810e39 | 1315 | . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o)) |
252b5132 RH |
1316 | . |
1317 | .#define bfd_coff_swap_reloc_in(abfd, i, o) \ | |
dc810e39 | 1318 | . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o)) |
252b5132 RH |
1319 | . |
1320 | .#define bfd_coff_bad_format_hook(abfd, filehdr) \ | |
dc810e39 | 1321 | . ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr)) |
252b5132 RH |
1322 | . |
1323 | .#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\ | |
dc810e39 | 1324 | . ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr)) |
252b5132 | 1325 | .#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\ |
dc810e39 | 1326 | . ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook) (abfd, filehdr, aouthdr)) |
252b5132 | 1327 | . |
7c8ca0e4 | 1328 | .#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section, flags_ptr)\ |
dc810e39 AM |
1329 | . ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\ |
1330 | . (abfd, scnhdr, name, section, flags_ptr)) | |
252b5132 RH |
1331 | . |
1332 | .#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\ | |
dc810e39 | 1333 | . ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr)) |
252b5132 RH |
1334 | . |
1335 | .#define bfd_coff_slurp_symbol_table(abfd)\ | |
dc810e39 | 1336 | . ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd)) |
252b5132 RH |
1337 | . |
1338 | .#define bfd_coff_symname_in_debug(abfd, sym)\ | |
dc810e39 | 1339 | . ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym)) |
252b5132 | 1340 | . |
2243c419 | 1341 | .#define bfd_coff_force_symnames_in_strings(abfd)\ |
dc810e39 | 1342 | . (coff_backend_info (abfd)->_bfd_coff_force_symnames_in_strings) |
2243c419 CP |
1343 | . |
1344 | .#define bfd_coff_debug_string_prefix_length(abfd)\ | |
dc810e39 | 1345 | . (coff_backend_info (abfd)->_bfd_coff_debug_string_prefix_length) |
2243c419 | 1346 | . |
252b5132 | 1347 | .#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\ |
dc810e39 AM |
1348 | . ((coff_backend_info (abfd)->_bfd_coff_print_aux)\ |
1349 | . (abfd, file, base, symbol, aux, indaux)) | |
252b5132 RH |
1350 | . |
1351 | .#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)\ | |
dc810e39 AM |
1352 | . ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\ |
1353 | . (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)) | |
252b5132 RH |
1354 | . |
1355 | .#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\ | |
dc810e39 AM |
1356 | . ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\ |
1357 | . (abfd, section, reloc, shrink, link_info)) | |
252b5132 | 1358 | . |
5d54c628 | 1359 | .#define bfd_coff_classify_symbol(abfd, sym)\ |
dc810e39 AM |
1360 | . ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\ |
1361 | . (abfd, sym)) | |
252b5132 RH |
1362 | . |
1363 | .#define bfd_coff_compute_section_file_positions(abfd)\ | |
dc810e39 AM |
1364 | . ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\ |
1365 | . (abfd)) | |
252b5132 RH |
1366 | . |
1367 | .#define bfd_coff_start_final_link(obfd, info)\ | |
dc810e39 AM |
1368 | . ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\ |
1369 | . (obfd, info)) | |
252b5132 | 1370 | .#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\ |
dc810e39 AM |
1371 | . ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\ |
1372 | . (obfd, info, ibfd, o, con, rel, isyms, secs)) | |
252b5132 | 1373 | .#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\ |
dc810e39 AM |
1374 | . ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\ |
1375 | . (abfd, sec, rel, h, sym, addendp)) | |
252b5132 | 1376 | .#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\ |
dc810e39 AM |
1377 | . ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\ |
1378 | . (obfd, info, ibfd, sec, rel, adjustedp)) | |
252b5132 | 1379 | .#define bfd_coff_link_add_one_symbol(info,abfd,name,flags,section,value,string,cp,coll,hashp)\ |
dc810e39 AM |
1380 | . ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\ |
1381 | . (info, abfd, name, flags, section, value, string, cp, coll, hashp)) | |
252b5132 RH |
1382 | . |
1383 | .#define bfd_coff_link_output_has_begun(a,p) \ | |
dc810e39 | 1384 | . ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a,p)) |
252b5132 | 1385 | .#define bfd_coff_final_link_postscript(a,p) \ |
dc810e39 | 1386 | . ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a,p)) |
252b5132 RH |
1387 | . |
1388 | */ | |
1389 | ||
1390 | /* See whether the magic number matches. */ | |
1391 | ||
1392 | static boolean | |
1393 | coff_bad_format_hook (abfd, filehdr) | |
5f771d47 | 1394 | bfd * abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
1395 | PTR filehdr; |
1396 | { | |
1397 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
1398 | ||
1399 | if (BADMAG (*internal_f)) | |
1400 | return false; | |
1401 | ||
1402 | /* if the optional header is NULL or not the correct size then | |
1403 | quit; the only difference I can see between m88k dgux headers (MC88DMAGIC) | |
1404 | and Intel 960 readwrite headers (I960WRMAGIC) is that the | |
1405 | optional header is of a different size. | |
1406 | ||
1407 | But the mips keeps extra stuff in it's opthdr, so dont check | |
1408 | when doing that | |
1409 | */ | |
1410 | ||
1411 | #if defined(M88) || defined(I960) | |
6b3b007b | 1412 | if (internal_f->f_opthdr != 0 && bfd_coff_aoutsz (abfd) != internal_f->f_opthdr) |
252b5132 RH |
1413 | return false; |
1414 | #endif | |
1415 | ||
1416 | return true; | |
1417 | } | |
1418 | ||
5dccc1dd ILT |
1419 | /* Check whether this section uses an alignment other than the |
1420 | default. */ | |
1421 | ||
1422 | static void | |
1423 | coff_set_custom_section_alignment (abfd, section, alignment_table, table_size) | |
1424 | bfd *abfd ATTRIBUTE_UNUSED; | |
1425 | asection *section; | |
1426 | const struct coff_section_alignment_entry *alignment_table; | |
1427 | const unsigned int table_size; | |
1428 | { | |
1429 | const unsigned int default_alignment = COFF_DEFAULT_SECTION_ALIGNMENT_POWER; | |
1430 | unsigned int i; | |
1431 | ||
1432 | for (i = 0; i < table_size; ++i) | |
1433 | { | |
1434 | const char *secname = bfd_get_section_name (abfd, section); | |
1435 | if (alignment_table[i].comparison_length == (unsigned int) -1 | |
1436 | ? strcmp (alignment_table[i].name, secname) == 0 | |
1437 | : strncmp (alignment_table[i].name, secname, | |
1438 | alignment_table[i].comparison_length) == 0) | |
1439 | break; | |
1440 | } | |
1441 | if (i >= table_size) | |
1442 | return; | |
1443 | ||
1444 | if (alignment_table[i].default_alignment_min != COFF_ALIGNMENT_FIELD_EMPTY | |
1445 | && default_alignment < alignment_table[i].default_alignment_min) | |
1446 | return; | |
1447 | ||
1448 | if (alignment_table[i].default_alignment_max != COFF_ALIGNMENT_FIELD_EMPTY | |
1e738b87 NC |
1449 | #if COFF_DEFAULT_SECTION_ALIGNMENT_POWER != 0 |
1450 | && default_alignment > alignment_table[i].default_alignment_max | |
1451 | #endif | |
1452 | ) | |
5dccc1dd ILT |
1453 | return; |
1454 | ||
1455 | section->alignment_power = alignment_table[i].alignment_power; | |
1456 | } | |
1457 | ||
1458 | /* Custom section alignment records. */ | |
1459 | ||
1460 | static const struct coff_section_alignment_entry | |
1461 | coff_section_alignment_table[] = | |
1462 | { | |
1463 | #ifdef COFF_SECTION_ALIGNMENT_ENTRIES | |
1464 | COFF_SECTION_ALIGNMENT_ENTRIES, | |
1465 | #endif | |
1466 | /* There must not be any gaps between .stabstr sections. */ | |
1467 | { COFF_SECTION_NAME_PARTIAL_MATCH (".stabstr"), | |
1468 | 1, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, | |
1469 | /* The .stab section must be aligned to 2**2 at most, to avoid gaps. */ | |
1470 | { COFF_SECTION_NAME_PARTIAL_MATCH (".stab"), | |
1471 | 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, | |
1472 | /* Similarly for the .ctors and .dtors sections. */ | |
1473 | { COFF_SECTION_NAME_EXACT_MATCH (".ctors"), | |
1474 | 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, | |
1475 | { COFF_SECTION_NAME_EXACT_MATCH (".dtors"), | |
1476 | 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 } | |
1477 | }; | |
1478 | ||
1479 | static const unsigned int coff_section_alignment_table_size = | |
1480 | sizeof coff_section_alignment_table / sizeof coff_section_alignment_table[0]; | |
1481 | ||
1482 | /* Initialize a section structure with information peculiar to this | |
1483 | particular implementation of COFF. */ | |
252b5132 RH |
1484 | |
1485 | static boolean | |
1486 | coff_new_section_hook (abfd, section) | |
60bcf0fa NC |
1487 | bfd * abfd; |
1488 | asection * section; | |
252b5132 RH |
1489 | { |
1490 | combined_entry_type *native; | |
dc810e39 | 1491 | bfd_size_type amt; |
252b5132 RH |
1492 | |
1493 | section->alignment_power = COFF_DEFAULT_SECTION_ALIGNMENT_POWER; | |
1494 | ||
1495 | #ifdef RS6000COFF_C | |
eb1e0e80 | 1496 | if (bfd_xcoff_text_align_power (abfd) != 0 |
252b5132 | 1497 | && strcmp (bfd_get_section_name (abfd, section), ".text") == 0) |
eb1e0e80 NC |
1498 | section->alignment_power = bfd_xcoff_text_align_power (abfd); |
1499 | if (bfd_xcoff_data_align_power (abfd) != 0 | |
252b5132 | 1500 | && strcmp (bfd_get_section_name (abfd, section), ".data") == 0) |
eb1e0e80 | 1501 | section->alignment_power = bfd_xcoff_data_align_power (abfd); |
252b5132 RH |
1502 | #endif |
1503 | ||
1504 | /* Allocate aux records for section symbols, to store size and | |
1505 | related info. | |
1506 | ||
1507 | @@ The 10 is a guess at a plausible maximum number of aux entries | |
1508 | (but shouldn't be a constant). */ | |
dc810e39 AM |
1509 | amt = sizeof (combined_entry_type) * 10; |
1510 | native = (combined_entry_type *) bfd_zalloc (abfd, amt); | |
252b5132 RH |
1511 | if (native == NULL) |
1512 | return false; | |
1513 | ||
1514 | /* We don't need to set up n_name, n_value, or n_scnum in the native | |
1515 | symbol information, since they'll be overriden by the BFD symbol | |
1516 | anyhow. However, we do need to set the type and storage class, | |
1517 | in case this symbol winds up getting written out. The value 0 | |
1518 | for n_numaux is already correct. */ | |
1519 | ||
1520 | native->u.syment.n_type = T_NULL; | |
1521 | native->u.syment.n_sclass = C_STAT; | |
1522 | ||
1523 | coffsymbol (section->symbol)->native = native; | |
1524 | ||
5dccc1dd ILT |
1525 | coff_set_custom_section_alignment (abfd, section, |
1526 | coff_section_alignment_table, | |
1527 | coff_section_alignment_table_size); | |
252b5132 RH |
1528 | |
1529 | return true; | |
1530 | } | |
1531 | ||
1532 | #ifdef COFF_ALIGN_IN_SECTION_HEADER | |
1533 | ||
1534 | /* Set the alignment of a BFD section. */ | |
1535 | ||
1536 | static void coff_set_alignment_hook PARAMS ((bfd *, asection *, PTR)); | |
1537 | ||
1538 | static void | |
1539 | coff_set_alignment_hook (abfd, section, scnhdr) | |
5f771d47 | 1540 | bfd * abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
1541 | asection * section; |
1542 | PTR scnhdr; | |
1543 | { | |
1544 | struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr; | |
1545 | unsigned int i; | |
1546 | ||
1547 | #ifdef I960 | |
1548 | /* Extract ALIGN from 2**ALIGN stored in section header */ | |
1549 | for (i = 0; i < 32; i++) | |
1550 | if ((1 << i) >= hdr->s_align) | |
1551 | break; | |
1552 | #endif | |
1553 | #ifdef TIC80COFF | |
81635ce4 | 1554 | /* TI tools puts the alignment power in bits 8-11 */ |
252b5132 | 1555 | i = (hdr->s_flags >> 8) & 0xF ; |
81635ce4 TW |
1556 | #endif |
1557 | #ifdef COFF_DECODE_ALIGNMENT | |
1558 | i = COFF_DECODE_ALIGNMENT(hdr->s_flags); | |
252b5132 RH |
1559 | #endif |
1560 | section->alignment_power = i; | |
b9af77f5 TW |
1561 | |
1562 | #ifdef coff_set_section_load_page | |
1563 | coff_set_section_load_page (section, hdr->s_page); | |
1564 | #endif | |
252b5132 RH |
1565 | } |
1566 | ||
1567 | #else /* ! COFF_ALIGN_IN_SECTION_HEADER */ | |
1568 | #ifdef COFF_WITH_PE | |
1569 | ||
1570 | /* a couple of macros to help setting the alignment power field */ | |
1571 | #define ALIGN_SET(field,x,y) \ | |
1572 | if (((field) & IMAGE_SCN_ALIGN_64BYTES) == x )\ | |
1573 | {\ | |
1574 | section->alignment_power = y;\ | |
1575 | } | |
1576 | ||
1577 | #define ELIFALIGN_SET(field,x,y) \ | |
1578 | else if (( (field) & IMAGE_SCN_ALIGN_64BYTES) == x ) \ | |
1579 | {\ | |
1580 | section->alignment_power = y;\ | |
1581 | } | |
1582 | ||
1583 | static void coff_set_alignment_hook PARAMS ((bfd *, asection *, PTR)); | |
1584 | ||
1585 | static void | |
1586 | coff_set_alignment_hook (abfd, section, scnhdr) | |
5f771d47 | 1587 | bfd * abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
1588 | asection * section; |
1589 | PTR scnhdr; | |
1590 | { | |
1591 | struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr; | |
dc810e39 | 1592 | bfd_size_type amt; |
252b5132 RH |
1593 | |
1594 | ALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_64BYTES, 6) | |
1595 | ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_32BYTES, 5) | |
1596 | ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_16BYTES, 4) | |
1597 | ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_8BYTES, 3) | |
1598 | ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_4BYTES, 2) | |
1599 | ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_2BYTES, 1) | |
1600 | ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_1BYTES, 0) | |
1601 | ||
252b5132 | 1602 | /* In a PE image file, the s_paddr field holds the virtual size of a |
8d3ad4e1 ILT |
1603 | section, while the s_size field holds the raw size. We also keep |
1604 | the original section flag value, since not every bit can be | |
1605 | mapped onto a generic BFD section bit. */ | |
1606 | if (coff_section_data (abfd, section) == NULL) | |
252b5132 | 1607 | { |
dc810e39 AM |
1608 | amt = sizeof (struct coff_section_tdata); |
1609 | section->used_by_bfd = (PTR) bfd_zalloc (abfd, amt); | |
8d3ad4e1 | 1610 | if (section->used_by_bfd == NULL) |
252b5132 | 1611 | { |
8d3ad4e1 ILT |
1612 | /* FIXME: Return error. */ |
1613 | abort (); | |
252b5132 | 1614 | } |
8d3ad4e1 ILT |
1615 | } |
1616 | if (pei_section_data (abfd, section) == NULL) | |
1617 | { | |
dc810e39 AM |
1618 | amt = sizeof (struct pei_section_tdata); |
1619 | coff_section_data (abfd, section)->tdata = (PTR) bfd_zalloc (abfd, amt); | |
8d3ad4e1 | 1620 | if (coff_section_data (abfd, section)->tdata == NULL) |
252b5132 | 1621 | { |
8d3ad4e1 ILT |
1622 | /* FIXME: Return error. */ |
1623 | abort (); | |
252b5132 | 1624 | } |
252b5132 | 1625 | } |
8d3ad4e1 ILT |
1626 | pei_section_data (abfd, section)->virt_size = hdr->s_paddr; |
1627 | pei_section_data (abfd, section)->pe_flags = hdr->s_flags; | |
252b5132 | 1628 | |
9d8cefa9 | 1629 | section->lma = hdr->s_vaddr; |
3e4554a2 DD |
1630 | |
1631 | /* check for extended relocs */ | |
1632 | if (hdr->s_flags & IMAGE_SCN_LNK_NRELOC_OVFL) | |
1633 | { | |
1634 | struct external_reloc dst; | |
1635 | struct internal_reloc n; | |
dc810e39 AM |
1636 | file_ptr oldpos = bfd_tell (abfd); |
1637 | bfd_seek (abfd, (file_ptr) hdr->s_relptr, 0); | |
1638 | if (bfd_bread ((PTR) &dst, (bfd_size_type) bfd_coff_relsz (abfd), abfd) | |
3e4554a2 DD |
1639 | != bfd_coff_relsz (abfd)) |
1640 | return; | |
e60b52c6 | 1641 | |
3e4554a2 DD |
1642 | coff_swap_reloc_in (abfd, &dst, &n); |
1643 | bfd_seek (abfd, oldpos, 0); | |
dc810e39 | 1644 | section->reloc_count = hdr->s_nreloc = n.r_vaddr; |
3e4554a2 | 1645 | } |
252b5132 RH |
1646 | } |
1647 | #undef ALIGN_SET | |
1648 | #undef ELIFALIGN_SET | |
1649 | ||
1650 | #else /* ! COFF_WITH_PE */ | |
1651 | #ifdef RS6000COFF_C | |
1652 | ||
1653 | /* We grossly abuse this function to handle XCOFF overflow headers. | |
1654 | When we see one, we correct the reloc and line number counts in the | |
1655 | real header, and remove the section we just created. */ | |
1656 | ||
1657 | static void coff_set_alignment_hook PARAMS ((bfd *, asection *, PTR)); | |
1658 | ||
1659 | static void | |
1660 | coff_set_alignment_hook (abfd, section, scnhdr) | |
1661 | bfd *abfd; | |
1662 | asection *section; | |
1663 | PTR scnhdr; | |
1664 | { | |
1665 | struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr; | |
1666 | asection *real_sec; | |
1667 | asection **ps; | |
1668 | ||
1669 | if ((hdr->s_flags & STYP_OVRFLO) == 0) | |
1670 | return; | |
1671 | ||
dc810e39 | 1672 | real_sec = coff_section_from_bfd_index (abfd, (int) hdr->s_nreloc); |
252b5132 RH |
1673 | if (real_sec == NULL) |
1674 | return; | |
1675 | ||
1676 | real_sec->reloc_count = hdr->s_paddr; | |
1677 | real_sec->lineno_count = hdr->s_vaddr; | |
1678 | ||
1679 | for (ps = &abfd->sections; *ps != NULL; ps = &(*ps)->next) | |
1680 | { | |
1681 | if (*ps == section) | |
1682 | { | |
9e7b37b3 | 1683 | bfd_section_list_remove (abfd, ps); |
252b5132 RH |
1684 | --abfd->section_count; |
1685 | break; | |
1686 | } | |
1687 | } | |
1688 | } | |
1689 | ||
1690 | #else /* ! RS6000COFF_C */ | |
1691 | ||
1692 | #define coff_set_alignment_hook \ | |
1693 | ((void (*) PARAMS ((bfd *, asection *, PTR))) bfd_void) | |
1694 | ||
1695 | #endif /* ! RS6000COFF_C */ | |
1696 | #endif /* ! COFF_WITH_PE */ | |
1697 | #endif /* ! COFF_ALIGN_IN_SECTION_HEADER */ | |
1698 | ||
1699 | #ifndef coff_mkobject | |
1700 | ||
1701 | static boolean coff_mkobject PARAMS ((bfd *)); | |
1702 | ||
1703 | static boolean | |
1704 | coff_mkobject (abfd) | |
1705 | bfd * abfd; | |
1706 | { | |
1707 | coff_data_type *coff; | |
dc810e39 | 1708 | bfd_size_type amt = sizeof (coff_data_type); |
252b5132 | 1709 | |
dc810e39 | 1710 | abfd->tdata.coff_obj_data = (struct coff_tdata *) bfd_zalloc (abfd, amt); |
252b5132 RH |
1711 | if (abfd->tdata.coff_obj_data == 0) |
1712 | return false; | |
1713 | coff = coff_data (abfd); | |
1714 | coff->symbols = (coff_symbol_type *) NULL; | |
1715 | coff->conversion_table = (unsigned int *) NULL; | |
1716 | coff->raw_syments = (struct coff_ptr_struct *) NULL; | |
1717 | coff->relocbase = 0; | |
1718 | coff->local_toc_sym_map = 0; | |
1719 | ||
1720 | /* make_abs_section(abfd);*/ | |
1721 | ||
1722 | return true; | |
1723 | } | |
1724 | #endif | |
1725 | ||
1726 | /* Create the COFF backend specific information. */ | |
1727 | #ifndef coff_mkobject_hook | |
1728 | static PTR | |
1729 | coff_mkobject_hook (abfd, filehdr, aouthdr) | |
1730 | bfd * abfd; | |
1731 | PTR filehdr; | |
5f771d47 | 1732 | PTR aouthdr ATTRIBUTE_UNUSED; |
252b5132 RH |
1733 | { |
1734 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
1735 | coff_data_type *coff; | |
1736 | ||
1737 | if (coff_mkobject (abfd) == false) | |
1738 | return NULL; | |
1739 | ||
1740 | coff = coff_data (abfd); | |
1741 | ||
1742 | coff->sym_filepos = internal_f->f_symptr; | |
1743 | ||
1744 | /* These members communicate important constants about the symbol | |
1745 | table to GDB's symbol-reading code. These `constants' | |
1746 | unfortunately vary among coff implementations... */ | |
1747 | coff->local_n_btmask = N_BTMASK; | |
1748 | coff->local_n_btshft = N_BTSHFT; | |
1749 | coff->local_n_tmask = N_TMASK; | |
1750 | coff->local_n_tshift = N_TSHIFT; | |
6b3b007b NC |
1751 | coff->local_symesz = bfd_coff_symesz (abfd); |
1752 | coff->local_auxesz = bfd_coff_auxesz (abfd); | |
1753 | coff->local_linesz = bfd_coff_linesz (abfd); | |
252b5132 | 1754 | |
1135238b ILT |
1755 | coff->timestamp = internal_f->f_timdat; |
1756 | ||
252b5132 RH |
1757 | obj_raw_syment_count (abfd) = |
1758 | obj_conv_table_size (abfd) = | |
1759 | internal_f->f_nsyms; | |
1760 | ||
1761 | #ifdef RS6000COFF_C | |
1762 | if ((internal_f->f_flags & F_SHROBJ) != 0) | |
1763 | abfd->flags |= DYNAMIC; | |
6b3b007b | 1764 | if (aouthdr != NULL && internal_f->f_opthdr >= bfd_coff_aoutsz (abfd)) |
252b5132 RH |
1765 | { |
1766 | struct internal_aouthdr *internal_a = | |
1767 | (struct internal_aouthdr *) aouthdr; | |
1768 | struct xcoff_tdata *xcoff; | |
1769 | ||
1770 | xcoff = xcoff_data (abfd); | |
a2fdf270 ND |
1771 | # ifdef U803XTOCMAGIC |
1772 | xcoff->xcoff64 = internal_f->f_magic == U803XTOCMAGIC; | |
1773 | # else | |
1774 | xcoff->xcoff64 = 0; | |
1775 | # endif | |
252b5132 RH |
1776 | xcoff->full_aouthdr = true; |
1777 | xcoff->toc = internal_a->o_toc; | |
1778 | xcoff->sntoc = internal_a->o_sntoc; | |
1779 | xcoff->snentry = internal_a->o_snentry; | |
1780 | xcoff->text_align_power = internal_a->o_algntext; | |
1781 | xcoff->data_align_power = internal_a->o_algndata; | |
1782 | xcoff->modtype = internal_a->o_modtype; | |
1783 | xcoff->cputype = internal_a->o_cputype; | |
1784 | xcoff->maxdata = internal_a->o_maxdata; | |
1785 | xcoff->maxstack = internal_a->o_maxstack; | |
1786 | } | |
1787 | #endif | |
1788 | ||
e60b52c6 | 1789 | #ifdef ARM |
f13b834e | 1790 | /* Set the flags field from the COFF header read in. */ |
252b5132 RH |
1791 | if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags)) |
1792 | coff->flags = 0; | |
1793 | #endif | |
e60b52c6 | 1794 | |
4cfec37b ILT |
1795 | #ifdef COFF_WITH_PE |
1796 | /* FIXME: I'm not sure this is ever executed, since peicode.h | |
1797 | defines coff_mkobject_hook. */ | |
1798 | if ((internal_f->f_flags & IMAGE_FILE_DEBUG_STRIPPED) == 0) | |
1799 | abfd->flags |= HAS_DEBUG; | |
1800 | #endif | |
1801 | ||
252b5132 RH |
1802 | return (PTR) coff; |
1803 | } | |
1804 | #endif | |
1805 | ||
1806 | /* Determine the machine architecture and type. FIXME: This is target | |
1807 | dependent because the magic numbers are defined in the target | |
1808 | dependent header files. But there is no particular need for this. | |
1809 | If the magic numbers were moved to a separate file, this function | |
1810 | would be target independent and would also be much more successful | |
1811 | at linking together COFF files for different architectures. */ | |
1812 | ||
1813 | static boolean | |
1814 | coff_set_arch_mach_hook (abfd, filehdr) | |
1815 | bfd *abfd; | |
1816 | PTR filehdr; | |
1817 | { | |
dc810e39 | 1818 | unsigned long machine; |
252b5132 RH |
1819 | enum bfd_architecture arch; |
1820 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
1821 | ||
1822 | machine = 0; | |
1823 | switch (internal_f->f_magic) | |
1824 | { | |
3b16e843 NC |
1825 | #ifdef OR32_MAGIC_BIG |
1826 | case OR32_MAGIC_BIG: | |
1827 | case OR32_MAGIC_LITTLE: | |
1828 | arch = bfd_arch_or32; | |
1829 | machine = 0; | |
1830 | break; | |
1831 | #endif | |
252b5132 RH |
1832 | #ifdef PPCMAGIC |
1833 | case PPCMAGIC: | |
1834 | arch = bfd_arch_powerpc; | |
1835 | machine = 0; /* what does this mean? (krk) */ | |
e60b52c6 | 1836 | break; |
252b5132 RH |
1837 | #endif |
1838 | #ifdef I386MAGIC | |
1839 | case I386MAGIC: | |
1840 | case I386PTXMAGIC: | |
1841 | case I386AIXMAGIC: /* Danbury PS/2 AIX C Compiler */ | |
1842 | case LYNXCOFFMAGIC: /* shadows the m68k Lynx number below, sigh */ | |
1843 | arch = bfd_arch_i386; | |
1844 | machine = 0; | |
1845 | break; | |
1846 | #endif | |
fac41780 JW |
1847 | #ifdef IA64MAGIC |
1848 | case IA64MAGIC: | |
1849 | arch = bfd_arch_ia64; | |
1850 | machine = 0; | |
1851 | break; | |
1852 | #endif | |
252b5132 RH |
1853 | #ifdef A29K_MAGIC_BIG |
1854 | case A29K_MAGIC_BIG: | |
1855 | case A29K_MAGIC_LITTLE: | |
1856 | arch = bfd_arch_a29k; | |
1857 | machine = 0; | |
1858 | break; | |
1859 | #endif | |
1860 | #ifdef ARMMAGIC | |
1861 | case ARMMAGIC: | |
17505c5c NC |
1862 | case ARMPEMAGIC: |
1863 | case THUMBPEMAGIC: | |
252b5132 RH |
1864 | arch = bfd_arch_arm; |
1865 | switch (internal_f->f_flags & F_ARM_ARCHITECTURE_MASK) | |
1866 | { | |
948221a8 NC |
1867 | case F_ARM_2: machine = bfd_mach_arm_2; break; |
1868 | case F_ARM_2a: machine = bfd_mach_arm_2a; break; | |
1869 | case F_ARM_3: machine = bfd_mach_arm_3; break; | |
1870 | default: | |
1871 | case F_ARM_3M: machine = bfd_mach_arm_3M; break; | |
1872 | case F_ARM_4: machine = bfd_mach_arm_4; break; | |
1873 | case F_ARM_4T: machine = bfd_mach_arm_4T; break; | |
f13b834e NC |
1874 | /* The COFF header does not have enough bits available |
1875 | to cover all the different ARM architectures. So | |
1876 | we interpret F_ARM_5, the highest flag value to mean | |
1877 | "the highest ARM architecture known to BFD" which is | |
1878 | currently the XScale. */ | |
1879 | case F_ARM_5: machine = bfd_mach_arm_XScale; break; | |
252b5132 RH |
1880 | } |
1881 | break; | |
1882 | #endif | |
1883 | #ifdef MC68MAGIC | |
1884 | case MC68MAGIC: | |
1885 | case M68MAGIC: | |
1886 | #ifdef MC68KBCSMAGIC | |
1887 | case MC68KBCSMAGIC: | |
1888 | #endif | |
1889 | #ifdef APOLLOM68KMAGIC | |
1890 | case APOLLOM68KMAGIC: | |
1891 | #endif | |
1892 | #ifdef LYNXCOFFMAGIC | |
1893 | case LYNXCOFFMAGIC: | |
1894 | #endif | |
1895 | arch = bfd_arch_m68k; | |
1896 | machine = bfd_mach_m68020; | |
1897 | break; | |
1898 | #endif | |
1899 | #ifdef MC88MAGIC | |
1900 | case MC88MAGIC: | |
1901 | case MC88DMAGIC: | |
1902 | case MC88OMAGIC: | |
1903 | arch = bfd_arch_m88k; | |
1904 | machine = 88100; | |
1905 | break; | |
1906 | #endif | |
1907 | #ifdef Z8KMAGIC | |
1908 | case Z8KMAGIC: | |
1909 | arch = bfd_arch_z8k; | |
1910 | switch (internal_f->f_flags & F_MACHMASK) | |
1911 | { | |
1912 | case F_Z8001: | |
1913 | machine = bfd_mach_z8001; | |
1914 | break; | |
1915 | case F_Z8002: | |
1916 | machine = bfd_mach_z8002; | |
1917 | break; | |
1918 | default: | |
1919 | return false; | |
1920 | } | |
1921 | break; | |
1922 | #endif | |
1923 | #ifdef I860 | |
1924 | case I860MAGIC: | |
1925 | arch = bfd_arch_i860; | |
1926 | break; | |
1927 | #endif | |
1928 | #ifdef I960 | |
1929 | #ifdef I960ROMAGIC | |
1930 | case I960ROMAGIC: | |
1931 | case I960RWMAGIC: | |
1932 | arch = bfd_arch_i960; | |
1933 | switch (F_I960TYPE & internal_f->f_flags) | |
1934 | { | |
1935 | default: | |
1936 | case F_I960CORE: | |
1937 | machine = bfd_mach_i960_core; | |
1938 | break; | |
1939 | case F_I960KB: | |
1940 | machine = bfd_mach_i960_kb_sb; | |
1941 | break; | |
1942 | case F_I960MC: | |
1943 | machine = bfd_mach_i960_mc; | |
1944 | break; | |
1945 | case F_I960XA: | |
1946 | machine = bfd_mach_i960_xa; | |
1947 | break; | |
1948 | case F_I960CA: | |
1949 | machine = bfd_mach_i960_ca; | |
1950 | break; | |
1951 | case F_I960KA: | |
1952 | machine = bfd_mach_i960_ka_sa; | |
1953 | break; | |
1954 | case F_I960JX: | |
1955 | machine = bfd_mach_i960_jx; | |
1956 | break; | |
1957 | case F_I960HX: | |
1958 | machine = bfd_mach_i960_hx; | |
1959 | break; | |
1960 | } | |
1961 | break; | |
1962 | #endif | |
1963 | #endif | |
1964 | ||
1965 | #ifdef RS6000COFF_C | |
7f6d05e8 | 1966 | #ifdef XCOFF64 |
eb1e0e80 | 1967 | case U64_TOCMAGIC: |
c6664dfb | 1968 | case U803XTOCMAGIC: |
7f6d05e8 | 1969 | #else |
252b5132 RH |
1970 | case U802ROMAGIC: |
1971 | case U802WRMAGIC: | |
1972 | case U802TOCMAGIC: | |
7f6d05e8 | 1973 | #endif |
252b5132 RH |
1974 | { |
1975 | int cputype; | |
1976 | ||
1977 | if (xcoff_data (abfd)->cputype != -1) | |
1978 | cputype = xcoff_data (abfd)->cputype & 0xff; | |
1979 | else | |
1980 | { | |
1981 | /* We did not get a value from the a.out header. If the | |
1982 | file has not been stripped, we may be able to get the | |
1983 | architecture information from the first symbol, if it | |
1984 | is a .file symbol. */ | |
1985 | if (obj_raw_syment_count (abfd) == 0) | |
1986 | cputype = 0; | |
1987 | else | |
1988 | { | |
5ea1af0d | 1989 | bfd_byte *buf; |
252b5132 | 1990 | struct internal_syment sym; |
dc810e39 | 1991 | bfd_size_type amt = bfd_coff_symesz (abfd); |
252b5132 | 1992 | |
dc810e39 | 1993 | buf = (bfd_byte *) bfd_malloc (amt); |
252b5132 | 1994 | if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0 |
dc810e39 | 1995 | || bfd_bread (buf, amt, abfd) != amt) |
5ea1af0d | 1996 | { |
2fca4467 | 1997 | free (buf); |
5ea1af0d GK |
1998 | return false; |
1999 | } | |
7f6d05e8 | 2000 | bfd_coff_swap_sym_in (abfd, (PTR) buf, (PTR) &sym); |
252b5132 RH |
2001 | if (sym.n_sclass == C_FILE) |
2002 | cputype = sym.n_type & 0xff; | |
2003 | else | |
2004 | cputype = 0; | |
2fca4467 | 2005 | free (buf); |
252b5132 RH |
2006 | } |
2007 | } | |
2008 | ||
2009 | /* FIXME: We don't handle all cases here. */ | |
2010 | switch (cputype) | |
2011 | { | |
2012 | default: | |
2013 | case 0: | |
beb1bf64 TR |
2014 | arch = bfd_xcoff_architecture (abfd); |
2015 | machine = bfd_xcoff_machine (abfd); | |
252b5132 RH |
2016 | break; |
2017 | ||
2018 | case 1: | |
2019 | arch = bfd_arch_powerpc; | |
87f33987 | 2020 | machine = bfd_mach_ppc_601; |
252b5132 RH |
2021 | break; |
2022 | case 2: /* 64 bit PowerPC */ | |
2023 | arch = bfd_arch_powerpc; | |
87f33987 | 2024 | machine = bfd_mach_ppc_620; |
252b5132 RH |
2025 | break; |
2026 | case 3: | |
2027 | arch = bfd_arch_powerpc; | |
87f33987 | 2028 | machine = bfd_mach_ppc; |
252b5132 RH |
2029 | break; |
2030 | case 4: | |
2031 | arch = bfd_arch_rs6000; | |
87f33987 | 2032 | machine = bfd_mach_rs6k; |
252b5132 RH |
2033 | break; |
2034 | } | |
2035 | } | |
2036 | break; | |
2037 | #endif | |
2038 | ||
2039 | #ifdef WE32KMAGIC | |
2040 | case WE32KMAGIC: | |
2041 | arch = bfd_arch_we32k; | |
2042 | machine = 0; | |
2043 | break; | |
2044 | #endif | |
2045 | ||
2046 | #ifdef H8300MAGIC | |
2047 | case H8300MAGIC: | |
2048 | arch = bfd_arch_h8300; | |
2049 | machine = bfd_mach_h8300; | |
2050 | /* !! FIXME this probably isn't the right place for this */ | |
2051 | abfd->flags |= BFD_IS_RELAXABLE; | |
2052 | break; | |
2053 | #endif | |
2054 | ||
2055 | #ifdef H8300HMAGIC | |
2056 | case H8300HMAGIC: | |
2057 | arch = bfd_arch_h8300; | |
2058 | machine = bfd_mach_h8300h; | |
2059 | /* !! FIXME this probably isn't the right place for this */ | |
2060 | abfd->flags |= BFD_IS_RELAXABLE; | |
2061 | break; | |
2062 | #endif | |
2063 | ||
2064 | #ifdef H8300SMAGIC | |
2065 | case H8300SMAGIC: | |
2066 | arch = bfd_arch_h8300; | |
2067 | machine = bfd_mach_h8300s; | |
2068 | /* !! FIXME this probably isn't the right place for this */ | |
2069 | abfd->flags |= BFD_IS_RELAXABLE; | |
2070 | break; | |
2071 | #endif | |
2072 | ||
2073 | #ifdef SH_ARCH_MAGIC_BIG | |
2074 | case SH_ARCH_MAGIC_BIG: | |
2075 | case SH_ARCH_MAGIC_LITTLE: | |
17505c5c NC |
2076 | #ifdef COFF_WITH_PE |
2077 | case SH_ARCH_MAGIC_WINCE: | |
2078 | #endif | |
252b5132 RH |
2079 | arch = bfd_arch_sh; |
2080 | machine = 0; | |
2081 | break; | |
2082 | #endif | |
2083 | ||
17505c5c NC |
2084 | #ifdef MIPS_ARCH_MAGIC_WINCE |
2085 | case MIPS_ARCH_MAGIC_WINCE: | |
2086 | arch = bfd_arch_mips; | |
2087 | machine = 0; | |
2088 | break; | |
2089 | #endif | |
2090 | ||
252b5132 RH |
2091 | #ifdef H8500MAGIC |
2092 | case H8500MAGIC: | |
2093 | arch = bfd_arch_h8500; | |
2094 | machine = 0; | |
2095 | break; | |
2096 | #endif | |
2097 | ||
2098 | #ifdef SPARCMAGIC | |
2099 | case SPARCMAGIC: | |
2100 | #ifdef LYNXCOFFMAGIC | |
2101 | case LYNXCOFFMAGIC: | |
2102 | #endif | |
2103 | arch = bfd_arch_sparc; | |
2104 | machine = 0; | |
2105 | break; | |
2106 | #endif | |
2107 | ||
2108 | #ifdef TIC30MAGIC | |
2109 | case TIC30MAGIC: | |
2110 | arch = bfd_arch_tic30; | |
2111 | break; | |
2112 | #endif | |
2113 | ||
81635ce4 TW |
2114 | #ifdef TICOFF0MAGIC |
2115 | #ifdef TICOFF_TARGET_ARCH | |
2116 | /* this TI COFF section should be used by all new TI COFF v0 targets */ | |
2117 | case TICOFF0MAGIC: | |
2118 | arch = TICOFF_TARGET_ARCH; | |
2119 | break; | |
2120 | #endif | |
2121 | #endif | |
2122 | ||
2123 | #ifdef TICOFF1MAGIC | |
2124 | /* this TI COFF section should be used by all new TI COFF v1/2 targets */ | |
2125 | /* TI COFF1 and COFF2 use the target_id field to specify which arch */ | |
2126 | case TICOFF1MAGIC: | |
2127 | case TICOFF2MAGIC: | |
2128 | switch (internal_f->f_target_id) | |
2129 | { | |
2130 | #ifdef TI_TARGET_ID | |
2131 | case TI_TARGET_ID: | |
2132 | arch = TICOFF_TARGET_ARCH; | |
2133 | break; | |
2134 | #endif | |
2135 | default: | |
4af1d5f6 | 2136 | arch = bfd_arch_obscure; |
81635ce4 | 2137 | (*_bfd_error_handler) |
e60b52c6 | 2138 | (_("Unrecognized TI COFF target id '0x%x'"), |
81635ce4 TW |
2139 | internal_f->f_target_id); |
2140 | break; | |
2141 | } | |
2142 | break; | |
2143 | #endif | |
2144 | ||
252b5132 RH |
2145 | #ifdef TIC80_ARCH_MAGIC |
2146 | case TIC80_ARCH_MAGIC: | |
2147 | arch = bfd_arch_tic80; | |
2148 | break; | |
2149 | #endif | |
2150 | ||
2151 | #ifdef MCOREMAGIC | |
2152 | case MCOREMAGIC: | |
2153 | arch = bfd_arch_mcore; | |
2154 | break; | |
2155 | #endif | |
2156 | default: /* Unreadable input file type */ | |
2157 | arch = bfd_arch_obscure; | |
2158 | break; | |
2159 | } | |
2160 | ||
2161 | bfd_default_set_arch_mach (abfd, arch, machine); | |
2162 | return true; | |
2163 | } | |
2164 | ||
2165 | #ifdef SYMNAME_IN_DEBUG | |
2166 | ||
2167 | static boolean symname_in_debug_hook | |
2168 | PARAMS ((bfd *, struct internal_syment *)); | |
2169 | ||
2170 | static boolean | |
2171 | symname_in_debug_hook (abfd, sym) | |
5f771d47 | 2172 | bfd * abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
2173 | struct internal_syment *sym; |
2174 | { | |
2175 | return SYMNAME_IN_DEBUG (sym) ? true : false; | |
2176 | } | |
2177 | ||
2178 | #else | |
2179 | ||
2180 | #define symname_in_debug_hook \ | |
2181 | (boolean (*) PARAMS ((bfd *, struct internal_syment *))) bfd_false | |
2182 | ||
2183 | #endif | |
2184 | ||
2185 | #ifdef RS6000COFF_C | |
2186 | ||
7f6d05e8 CP |
2187 | #ifdef XCOFF64 |
2188 | #define FORCE_SYMNAMES_IN_STRINGS | |
2189 | #endif | |
a022216b | 2190 | |
252b5132 RH |
2191 | /* Handle the csect auxent of a C_EXT or C_HIDEXT symbol. */ |
2192 | ||
2193 | static boolean coff_pointerize_aux_hook | |
2194 | PARAMS ((bfd *, combined_entry_type *, combined_entry_type *, | |
2195 | unsigned int, combined_entry_type *)); | |
2196 | ||
2197 | /*ARGSUSED*/ | |
2198 | static boolean | |
2199 | coff_pointerize_aux_hook (abfd, table_base, symbol, indaux, aux) | |
5f771d47 | 2200 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
2201 | combined_entry_type *table_base; |
2202 | combined_entry_type *symbol; | |
2203 | unsigned int indaux; | |
2204 | combined_entry_type *aux; | |
2205 | { | |
2206 | int class = symbol->u.syment.n_sclass; | |
2207 | ||
2208 | if ((class == C_EXT || class == C_HIDEXT) | |
2209 | && indaux + 1 == symbol->u.syment.n_numaux) | |
2210 | { | |
2211 | if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) == XTY_LD) | |
2212 | { | |
2213 | aux->u.auxent.x_csect.x_scnlen.p = | |
2214 | table_base + aux->u.auxent.x_csect.x_scnlen.l; | |
2215 | aux->fix_scnlen = 1; | |
2216 | } | |
2217 | ||
2218 | /* Return true to indicate that the caller should not do any | |
2219 | further work on this auxent. */ | |
2220 | return true; | |
2221 | } | |
2222 | ||
2223 | /* Return false to indicate that this auxent should be handled by | |
2224 | the caller. */ | |
2225 | return false; | |
2226 | } | |
2227 | ||
2228 | #else | |
2229 | #ifdef I960 | |
2230 | ||
2231 | /* We don't want to pointerize bal entries. */ | |
2232 | ||
2233 | static boolean coff_pointerize_aux_hook | |
2234 | PARAMS ((bfd *, combined_entry_type *, combined_entry_type *, | |
2235 | unsigned int, combined_entry_type *)); | |
2236 | ||
2237 | /*ARGSUSED*/ | |
2238 | static boolean | |
2239 | coff_pointerize_aux_hook (abfd, table_base, symbol, indaux, aux) | |
5f771d47 ILT |
2240 | bfd *abfd ATTRIBUTE_UNUSED; |
2241 | combined_entry_type *table_base ATTRIBUTE_UNUSED; | |
252b5132 RH |
2242 | combined_entry_type *symbol; |
2243 | unsigned int indaux; | |
5f771d47 | 2244 | combined_entry_type *aux ATTRIBUTE_UNUSED; |
252b5132 RH |
2245 | { |
2246 | /* Return true if we don't want to pointerize this aux entry, which | |
2247 | is the case for the lastfirst aux entry for a C_LEAFPROC symbol. */ | |
2248 | return (indaux == 1 | |
2249 | && (symbol->u.syment.n_sclass == C_LEAFPROC | |
2250 | || symbol->u.syment.n_sclass == C_LEAFSTAT | |
2251 | || symbol->u.syment.n_sclass == C_LEAFEXT)); | |
2252 | } | |
2253 | ||
2254 | #else /* ! I960 */ | |
2255 | ||
2256 | #define coff_pointerize_aux_hook 0 | |
2257 | ||
2258 | #endif /* ! I960 */ | |
2259 | #endif /* ! RS6000COFF_C */ | |
2260 | ||
2261 | /* Print an aux entry. This returns true if it has printed it. */ | |
2262 | ||
2263 | static boolean coff_print_aux | |
2264 | PARAMS ((bfd *, FILE *, combined_entry_type *, combined_entry_type *, | |
2265 | combined_entry_type *, unsigned int)); | |
2266 | ||
2267 | static boolean | |
2268 | coff_print_aux (abfd, file, table_base, symbol, aux, indaux) | |
5f771d47 ILT |
2269 | bfd *abfd ATTRIBUTE_UNUSED; |
2270 | FILE *file ATTRIBUTE_UNUSED; | |
2271 | combined_entry_type *table_base ATTRIBUTE_UNUSED; | |
2272 | combined_entry_type *symbol ATTRIBUTE_UNUSED; | |
2273 | combined_entry_type *aux ATTRIBUTE_UNUSED; | |
2274 | unsigned int indaux ATTRIBUTE_UNUSED; | |
252b5132 RH |
2275 | { |
2276 | #ifdef RS6000COFF_C | |
2277 | if ((symbol->u.syment.n_sclass == C_EXT | |
2278 | || symbol->u.syment.n_sclass == C_HIDEXT) | |
2279 | && indaux + 1 == symbol->u.syment.n_numaux) | |
2280 | { | |
2281 | /* This is a csect entry. */ | |
2282 | fprintf (file, "AUX "); | |
2283 | if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) != XTY_LD) | |
2284 | { | |
2285 | BFD_ASSERT (! aux->fix_scnlen); | |
dc810e39 | 2286 | #ifdef XCOFF64 |
beb1bf64 TR |
2287 | fprintf (file, "val %5lld", aux->u.auxent.x_csect.x_scnlen.l); |
2288 | #else | |
2289 | fprintf (file, "val %5ld", (long) aux->u.auxent.x_csect.x_scnlen.l); | |
2290 | #endif | |
252b5132 RH |
2291 | } |
2292 | else | |
2293 | { | |
2294 | fprintf (file, "indx "); | |
2295 | if (! aux->fix_scnlen) | |
beb1bf64 TR |
2296 | #ifdef XCOFF64 |
2297 | fprintf (file, "%4lld", aux->u.auxent.x_csect.x_scnlen.l); | |
2298 | #else | |
2299 | fprintf (file, "%4ld", (long) aux->u.auxent.x_csect.x_scnlen.l); | |
2300 | #endif | |
252b5132 RH |
2301 | else |
2302 | fprintf (file, "%4ld", | |
2303 | (long) (aux->u.auxent.x_csect.x_scnlen.p - table_base)); | |
2304 | } | |
2305 | fprintf (file, | |
2306 | " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u", | |
2307 | aux->u.auxent.x_csect.x_parmhash, | |
2308 | (unsigned int) aux->u.auxent.x_csect.x_snhash, | |
2309 | SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp), | |
2310 | SMTYP_ALIGN (aux->u.auxent.x_csect.x_smtyp), | |
2311 | (unsigned int) aux->u.auxent.x_csect.x_smclas, | |
2312 | aux->u.auxent.x_csect.x_stab, | |
2313 | (unsigned int) aux->u.auxent.x_csect.x_snstab); | |
2314 | return true; | |
2315 | } | |
2316 | #endif | |
2317 | ||
2318 | /* Return false to indicate that no special action was taken. */ | |
2319 | return false; | |
2320 | } | |
2321 | ||
2322 | /* | |
2323 | SUBSUBSECTION | |
2324 | Writing relocations | |
2325 | ||
2326 | To write relocations, the back end steps though the | |
2327 | canonical relocation table and create an | |
2328 | @code{internal_reloc}. The symbol index to use is removed from | |
2329 | the @code{offset} field in the symbol table supplied. The | |
2330 | address comes directly from the sum of the section base | |
2331 | address and the relocation offset; the type is dug directly | |
2332 | from the howto field. Then the @code{internal_reloc} is | |
2333 | swapped into the shape of an @code{external_reloc} and written | |
2334 | out to disk. | |
2335 | ||
2336 | */ | |
2337 | ||
2338 | #ifdef TARG_AUX | |
2339 | ||
2340 | static int compare_arelent_ptr PARAMS ((const PTR, const PTR)); | |
2341 | ||
2342 | /* AUX's ld wants relocations to be sorted */ | |
2343 | static int | |
2344 | compare_arelent_ptr (x, y) | |
2345 | const PTR x; | |
2346 | const PTR y; | |
2347 | { | |
2348 | const arelent **a = (const arelent **) x; | |
2349 | const arelent **b = (const arelent **) y; | |
2350 | bfd_size_type aadr = (*a)->address; | |
2351 | bfd_size_type badr = (*b)->address; | |
2352 | ||
2353 | return (aadr < badr ? -1 : badr < aadr ? 1 : 0); | |
2354 | } | |
2355 | ||
2356 | #endif /* TARG_AUX */ | |
2357 | ||
2358 | static boolean | |
2359 | coff_write_relocs (abfd, first_undef) | |
2360 | bfd * abfd; | |
2361 | int first_undef; | |
2362 | { | |
2363 | asection *s; | |
2364 | ||
2365 | for (s = abfd->sections; s != (asection *) NULL; s = s->next) | |
2366 | { | |
2367 | unsigned int i; | |
2368 | struct external_reloc dst; | |
2369 | arelent **p; | |
2370 | ||
2371 | #ifndef TARG_AUX | |
2372 | p = s->orelocation; | |
2373 | #else | |
dc810e39 AM |
2374 | { |
2375 | /* sort relocations before we write them out */ | |
2376 | bfd_size_type amt; | |
2377 | ||
2378 | amt = s->reloc_count; | |
2379 | amt *= sizeof (arelent *); | |
2380 | p = (arelent **) bfd_malloc (amt); | |
2381 | if (p == NULL && s->reloc_count > 0) | |
2382 | return false; | |
2383 | memcpy (p, s->orelocation, (size_t) amt); | |
2384 | qsort (p, s->reloc_count, sizeof (arelent *), compare_arelent_ptr); | |
2385 | } | |
252b5132 RH |
2386 | #endif |
2387 | ||
2388 | if (bfd_seek (abfd, s->rel_filepos, SEEK_SET) != 0) | |
2389 | return false; | |
3e4554a2 DD |
2390 | |
2391 | #ifdef COFF_WITH_PE | |
2392 | if (s->reloc_count > 0xffff) | |
2393 | { | |
2394 | /* encode real count here as first reloc */ | |
2395 | struct internal_reloc n; | |
2396 | memset ((PTR) & n, 0, sizeof (n)); | |
2397 | /* add one to count *this* reloc (grr) */ | |
2398 | n.r_vaddr = s->reloc_count + 1; | |
2399 | coff_swap_reloc_out (abfd, &n, &dst); | |
dc810e39 AM |
2400 | if (bfd_bwrite ((PTR) & dst, (bfd_size_type) bfd_coff_relsz (abfd), |
2401 | abfd) != bfd_coff_relsz (abfd)) | |
3e4554a2 DD |
2402 | return false; |
2403 | } | |
2404 | #endif | |
2405 | ||
252b5132 RH |
2406 | for (i = 0; i < s->reloc_count; i++) |
2407 | { | |
2408 | struct internal_reloc n; | |
2409 | arelent *q = p[i]; | |
2410 | memset ((PTR) & n, 0, sizeof (n)); | |
2411 | ||
2412 | /* Now we've renumbered the symbols we know where the | |
2413 | undefined symbols live in the table. Check the reloc | |
2414 | entries for symbols who's output bfd isn't the right one. | |
2415 | This is because the symbol was undefined (which means | |
2416 | that all the pointers are never made to point to the same | |
2417 | place). This is a bad thing,'cause the symbols attached | |
2418 | to the output bfd are indexed, so that the relocation | |
2419 | entries know which symbol index they point to. So we | |
e60b52c6 | 2420 | have to look up the output symbol here. */ |
252b5132 RH |
2421 | |
2422 | if (q->sym_ptr_ptr[0]->the_bfd != abfd) | |
2423 | { | |
dc810e39 | 2424 | int j; |
252b5132 RH |
2425 | const char *sname = q->sym_ptr_ptr[0]->name; |
2426 | asymbol **outsyms = abfd->outsymbols; | |
dc810e39 | 2427 | for (j = first_undef; outsyms[j]; j++) |
252b5132 | 2428 | { |
dc810e39 | 2429 | const char *intable = outsyms[j]->name; |
252b5132 RH |
2430 | if (strcmp (intable, sname) == 0) { |
2431 | /* got a hit, so repoint the reloc */ | |
dc810e39 | 2432 | q->sym_ptr_ptr = outsyms + j; |
252b5132 RH |
2433 | break; |
2434 | } | |
2435 | } | |
2436 | } | |
2437 | ||
2438 | n.r_vaddr = q->address + s->vma; | |
2439 | ||
2440 | #ifdef R_IHCONST | |
2441 | /* The 29k const/consth reloc pair is a real kludge. The consth | |
2442 | part doesn't have a symbol; it has an offset. So rebuilt | |
2443 | that here. */ | |
2444 | if (q->howto->type == R_IHCONST) | |
2445 | n.r_symndx = q->addend; | |
2446 | else | |
2447 | #endif | |
2448 | if (q->sym_ptr_ptr) | |
2449 | { | |
6c784c9a TW |
2450 | #ifdef SECTION_RELATIVE_ABSOLUTE_SYMBOL_P |
2451 | if (SECTION_RELATIVE_ABSOLUTE_SYMBOL_P (q,s)) | |
2452 | #else | |
252b5132 | 2453 | if (q->sym_ptr_ptr == bfd_abs_section_ptr->symbol_ptr_ptr) |
6c784c9a | 2454 | #endif |
252b5132 RH |
2455 | /* This is a relocation relative to the absolute symbol. */ |
2456 | n.r_symndx = -1; | |
2457 | else | |
2458 | { | |
2459 | n.r_symndx = get_index ((*(q->sym_ptr_ptr))); | |
2460 | /* Take notice if the symbol reloc points to a symbol | |
2461 | we don't have in our symbol table. What should we | |
2462 | do for this?? */ | |
2463 | if (n.r_symndx > obj_conv_table_size (abfd)) | |
2464 | abort (); | |
2465 | } | |
2466 | } | |
2467 | ||
2468 | #ifdef SWAP_OUT_RELOC_OFFSET | |
2469 | n.r_offset = q->addend; | |
2470 | #endif | |
2471 | ||
2472 | #ifdef SELECT_RELOC | |
2473 | /* Work out reloc type from what is required */ | |
2474 | SELECT_RELOC (n, q->howto); | |
2475 | #else | |
2476 | n.r_type = q->howto->type; | |
2477 | #endif | |
2478 | coff_swap_reloc_out (abfd, &n, &dst); | |
dc810e39 AM |
2479 | if (bfd_bwrite ((PTR) & dst, (bfd_size_type) bfd_coff_relsz (abfd), |
2480 | abfd) != bfd_coff_relsz (abfd)) | |
252b5132 RH |
2481 | return false; |
2482 | } | |
2483 | ||
2484 | #ifdef TARG_AUX | |
2485 | if (p != NULL) | |
2486 | free (p); | |
2487 | #endif | |
2488 | } | |
2489 | ||
2490 | return true; | |
2491 | } | |
2492 | ||
2493 | /* Set flags and magic number of a coff file from architecture and machine | |
2494 | type. Result is true if we can represent the arch&type, false if not. */ | |
2495 | ||
2496 | static boolean | |
2497 | coff_set_flags (abfd, magicp, flagsp) | |
2498 | bfd * abfd; | |
5f771d47 ILT |
2499 | unsigned int *magicp ATTRIBUTE_UNUSED; |
2500 | unsigned short *flagsp ATTRIBUTE_UNUSED; | |
252b5132 RH |
2501 | { |
2502 | switch (bfd_get_arch (abfd)) | |
2503 | { | |
2504 | #ifdef Z8KMAGIC | |
2505 | case bfd_arch_z8k: | |
2506 | *magicp = Z8KMAGIC; | |
2507 | switch (bfd_get_mach (abfd)) | |
2508 | { | |
2509 | case bfd_mach_z8001: | |
2510 | *flagsp = F_Z8001; | |
2511 | break; | |
2512 | case bfd_mach_z8002: | |
2513 | *flagsp = F_Z8002; | |
2514 | break; | |
2515 | default: | |
2516 | return false; | |
2517 | } | |
2518 | return true; | |
2519 | #endif | |
2520 | #ifdef I960ROMAGIC | |
2521 | ||
2522 | case bfd_arch_i960: | |
2523 | ||
2524 | { | |
2525 | unsigned flags; | |
2526 | *magicp = I960ROMAGIC; | |
2527 | /* | |
2528 | ((bfd_get_file_flags(abfd) & WP_TEXT) ? I960ROMAGIC : | |
2529 | I960RWMAGIC); FIXME??? | |
2530 | */ | |
2531 | switch (bfd_get_mach (abfd)) | |
2532 | { | |
2533 | case bfd_mach_i960_core: | |
2534 | flags = F_I960CORE; | |
2535 | break; | |
2536 | case bfd_mach_i960_kb_sb: | |
2537 | flags = F_I960KB; | |
2538 | break; | |
2539 | case bfd_mach_i960_mc: | |
2540 | flags = F_I960MC; | |
2541 | break; | |
2542 | case bfd_mach_i960_xa: | |
2543 | flags = F_I960XA; | |
2544 | break; | |
2545 | case bfd_mach_i960_ca: | |
2546 | flags = F_I960CA; | |
2547 | break; | |
2548 | case bfd_mach_i960_ka_sa: | |
2549 | flags = F_I960KA; | |
2550 | break; | |
2551 | case bfd_mach_i960_jx: | |
2552 | flags = F_I960JX; | |
2553 | break; | |
2554 | case bfd_mach_i960_hx: | |
2555 | flags = F_I960HX; | |
2556 | break; | |
2557 | default: | |
2558 | return false; | |
2559 | } | |
2560 | *flagsp = flags; | |
2561 | return true; | |
2562 | } | |
2563 | break; | |
2564 | #endif | |
2565 | ||
2566 | #ifdef TIC30MAGIC | |
2567 | case bfd_arch_tic30: | |
2568 | *magicp = TIC30MAGIC; | |
2569 | return true; | |
2570 | #endif | |
81635ce4 TW |
2571 | |
2572 | #ifdef TICOFF_DEFAULT_MAGIC | |
2573 | case TICOFF_TARGET_ARCH: | |
2574 | /* if there's no indication of which version we want, use the default */ | |
2575 | if (!abfd->xvec ) | |
2576 | *magicp = TICOFF_DEFAULT_MAGIC; | |
2577 | else | |
2578 | { | |
2579 | /* we may want to output in a different COFF version */ | |
2580 | switch (abfd->xvec->name[4]) | |
2581 | { | |
2582 | case '0': | |
2583 | *magicp = TICOFF0MAGIC; | |
2584 | break; | |
2585 | case '1': | |
2586 | *magicp = TICOFF1MAGIC; | |
2587 | break; | |
2588 | case '2': | |
2589 | *magicp = TICOFF2MAGIC; | |
2590 | break; | |
2591 | default: | |
2592 | return false; | |
2593 | } | |
2594 | } | |
2595 | return true; | |
2596 | #endif | |
2597 | ||
252b5132 RH |
2598 | #ifdef TIC80_ARCH_MAGIC |
2599 | case bfd_arch_tic80: | |
2600 | *magicp = TIC80_ARCH_MAGIC; | |
2601 | return true; | |
2602 | #endif | |
2603 | #ifdef ARMMAGIC | |
2604 | case bfd_arch_arm: | |
17505c5c NC |
2605 | #ifdef ARM_WINCE |
2606 | * magicp = ARMPEMAGIC; | |
2607 | #else | |
252b5132 | 2608 | * magicp = ARMMAGIC; |
17505c5c | 2609 | #endif |
252b5132 RH |
2610 | * flagsp = 0; |
2611 | if (APCS_SET (abfd)) | |
2612 | { | |
2613 | if (APCS_26_FLAG (abfd)) | |
2614 | * flagsp |= F_APCS26; | |
e60b52c6 | 2615 | |
252b5132 RH |
2616 | if (APCS_FLOAT_FLAG (abfd)) |
2617 | * flagsp |= F_APCS_FLOAT; | |
e60b52c6 | 2618 | |
252b5132 | 2619 | if (PIC_FLAG (abfd)) |
948221a8 | 2620 | * flagsp |= F_PIC; |
252b5132 RH |
2621 | } |
2622 | if (INTERWORK_SET (abfd) && INTERWORK_FLAG (abfd)) | |
2623 | * flagsp |= F_INTERWORK; | |
2624 | switch (bfd_get_mach (abfd)) | |
2625 | { | |
2626 | case bfd_mach_arm_2: * flagsp |= F_ARM_2; break; | |
2627 | case bfd_mach_arm_2a: * flagsp |= F_ARM_2a; break; | |
2628 | case bfd_mach_arm_3: * flagsp |= F_ARM_3; break; | |
2629 | case bfd_mach_arm_3M: * flagsp |= F_ARM_3M; break; | |
2630 | case bfd_mach_arm_4: * flagsp |= F_ARM_4; break; | |
2631 | case bfd_mach_arm_4T: * flagsp |= F_ARM_4T; break; | |
478d07d6 | 2632 | case bfd_mach_arm_5: * flagsp |= F_ARM_5; break; |
f13b834e NC |
2633 | /* FIXME: we do not have F_ARM vaues greater than F_ARM_5. |
2634 | See also the comment in coff_set_arch_mach_hook(). */ | |
077b8428 NC |
2635 | case bfd_mach_arm_5T: * flagsp |= F_ARM_5; break; |
2636 | case bfd_mach_arm_5TE: * flagsp |= F_ARM_5; break; | |
2637 | case bfd_mach_arm_XScale: * flagsp |= F_ARM_5; break; | |
252b5132 RH |
2638 | } |
2639 | return true; | |
2640 | #endif | |
2641 | #ifdef PPCMAGIC | |
2642 | case bfd_arch_powerpc: | |
2643 | *magicp = PPCMAGIC; | |
2644 | return true; | |
2645 | break; | |
2646 | #endif | |
2647 | #ifdef I386MAGIC | |
2648 | case bfd_arch_i386: | |
2649 | *magicp = I386MAGIC; | |
2650 | #ifdef LYNXOS | |
e60b52c6 | 2651 | /* Just overwrite the usual value if we're doing Lynx. */ |
252b5132 RH |
2652 | *magicp = LYNXCOFFMAGIC; |
2653 | #endif | |
2654 | return true; | |
2655 | break; | |
2656 | #endif | |
2657 | #ifdef I860MAGIC | |
2658 | case bfd_arch_i860: | |
2659 | *magicp = I860MAGIC; | |
2660 | return true; | |
2661 | break; | |
2662 | #endif | |
fac41780 JW |
2663 | #ifdef IA64MAGIC |
2664 | case bfd_arch_ia64: | |
2665 | *magicp = IA64MAGIC; | |
2666 | return true; | |
2667 | break; | |
2668 | #endif | |
252b5132 RH |
2669 | #ifdef MC68MAGIC |
2670 | case bfd_arch_m68k: | |
2671 | #ifdef APOLLOM68KMAGIC | |
2672 | *magicp = APOLLO_COFF_VERSION_NUMBER; | |
2673 | #else | |
2674 | /* NAMES_HAVE_UNDERSCORE may be defined by coff-u68k.c. */ | |
2675 | #ifdef NAMES_HAVE_UNDERSCORE | |
2676 | *magicp = MC68KBCSMAGIC; | |
2677 | #else | |
2678 | *magicp = MC68MAGIC; | |
2679 | #endif | |
2680 | #endif | |
2681 | #ifdef LYNXOS | |
e60b52c6 | 2682 | /* Just overwrite the usual value if we're doing Lynx. */ |
252b5132 RH |
2683 | *magicp = LYNXCOFFMAGIC; |
2684 | #endif | |
2685 | return true; | |
2686 | break; | |
2687 | #endif | |
2688 | ||
2689 | #ifdef MC88MAGIC | |
2690 | case bfd_arch_m88k: | |
2691 | *magicp = MC88OMAGIC; | |
2692 | return true; | |
2693 | break; | |
2694 | #endif | |
2695 | #ifdef H8300MAGIC | |
2696 | case bfd_arch_h8300: | |
2697 | switch (bfd_get_mach (abfd)) | |
2698 | { | |
2699 | case bfd_mach_h8300: | |
2700 | *magicp = H8300MAGIC; | |
2701 | return true; | |
2702 | case bfd_mach_h8300h: | |
2703 | *magicp = H8300HMAGIC; | |
2704 | return true; | |
2705 | case bfd_mach_h8300s: | |
2706 | *magicp = H8300SMAGIC; | |
2707 | return true; | |
2708 | } | |
2709 | break; | |
2710 | #endif | |
2711 | ||
2712 | #ifdef SH_ARCH_MAGIC_BIG | |
2713 | case bfd_arch_sh: | |
17505c5c NC |
2714 | #ifdef COFF_IMAGE_WITH_PE |
2715 | *magicp = SH_ARCH_MAGIC_WINCE; | |
2716 | #else | |
252b5132 RH |
2717 | if (bfd_big_endian (abfd)) |
2718 | *magicp = SH_ARCH_MAGIC_BIG; | |
2719 | else | |
2720 | *magicp = SH_ARCH_MAGIC_LITTLE; | |
17505c5c NC |
2721 | #endif |
2722 | return true; | |
2723 | break; | |
2724 | #endif | |
2725 | ||
2726 | #ifdef MIPS_ARCH_MAGIC_WINCE | |
2727 | case bfd_arch_mips: | |
2728 | *magicp = MIPS_ARCH_MAGIC_WINCE; | |
252b5132 RH |
2729 | return true; |
2730 | break; | |
2731 | #endif | |
2732 | ||
2733 | #ifdef SPARCMAGIC | |
2734 | case bfd_arch_sparc: | |
2735 | *magicp = SPARCMAGIC; | |
2736 | #ifdef LYNXOS | |
e60b52c6 | 2737 | /* Just overwrite the usual value if we're doing Lynx. */ |
252b5132 RH |
2738 | *magicp = LYNXCOFFMAGIC; |
2739 | #endif | |
2740 | return true; | |
2741 | break; | |
2742 | #endif | |
2743 | ||
2744 | #ifdef H8500MAGIC | |
2745 | case bfd_arch_h8500: | |
2746 | *magicp = H8500MAGIC; | |
2747 | return true; | |
2748 | break; | |
2749 | #endif | |
2750 | #ifdef A29K_MAGIC_BIG | |
2751 | case bfd_arch_a29k: | |
2752 | if (bfd_big_endian (abfd)) | |
2753 | *magicp = A29K_MAGIC_BIG; | |
2754 | else | |
2755 | *magicp = A29K_MAGIC_LITTLE; | |
2756 | return true; | |
2757 | break; | |
2758 | #endif | |
2759 | ||
2760 | #ifdef WE32KMAGIC | |
2761 | case bfd_arch_we32k: | |
2762 | *magicp = WE32KMAGIC; | |
2763 | return true; | |
2764 | break; | |
2765 | #endif | |
2766 | ||
7f6d05e8 | 2767 | #ifdef RS6000COFF_C |
252b5132 RH |
2768 | case bfd_arch_rs6000: |
2769 | #ifndef PPCMAGIC | |
2770 | case bfd_arch_powerpc: | |
2771 | #endif | |
eb1e0e80 NC |
2772 | BFD_ASSERT (bfd_get_flavour (abfd) == bfd_target_xcoff_flavour); |
2773 | *magicp = bfd_xcoff_magic_number (abfd); | |
252b5132 RH |
2774 | return true; |
2775 | break; | |
2776 | #endif | |
2777 | ||
2778 | #ifdef MCOREMAGIC | |
2779 | case bfd_arch_mcore: | |
2780 | * magicp = MCOREMAGIC; | |
2781 | return true; | |
2782 | #endif | |
e60b52c6 | 2783 | |
371e71b8 NC |
2784 | #ifdef W65MAGIC |
2785 | case bfd_arch_w65: | |
2786 | *magicp = W65MAGIC; | |
2787 | return true; | |
2788 | #endif | |
2789 | ||
3b16e843 NC |
2790 | #ifdef OR32_MAGIC_BIG |
2791 | case bfd_arch_or32: | |
2792 | if (bfd_big_endian (abfd)) | |
2793 | * magicp = OR32_MAGIC_BIG; | |
2794 | else | |
2795 | * magicp = OR32_MAGIC_LITTLE; | |
2796 | return true; | |
2797 | #endif | |
2798 | ||
371e71b8 NC |
2799 | default: /* Unknown architecture. */ |
2800 | /* Fall through to "return false" below, to avoid | |
2801 | "statement never reached" errors on the one below. */ | |
252b5132 RH |
2802 | break; |
2803 | } | |
2804 | ||
2805 | return false; | |
2806 | } | |
2807 | ||
252b5132 RH |
2808 | static boolean |
2809 | coff_set_arch_mach (abfd, arch, machine) | |
2810 | bfd * abfd; | |
2811 | enum bfd_architecture arch; | |
2812 | unsigned long machine; | |
2813 | { | |
2814 | unsigned dummy1; | |
2815 | unsigned short dummy2; | |
2816 | ||
2817 | if (! bfd_default_set_arch_mach (abfd, arch, machine)) | |
2818 | return false; | |
2819 | ||
2820 | if (arch != bfd_arch_unknown && | |
2821 | coff_set_flags (abfd, &dummy1, &dummy2) != true) | |
2822 | return false; /* We can't represent this type */ | |
2823 | ||
e60b52c6 | 2824 | return true; /* We're easy ... */ |
252b5132 RH |
2825 | } |
2826 | ||
75cc7189 ILT |
2827 | #ifdef COFF_IMAGE_WITH_PE |
2828 | ||
2829 | /* This is used to sort sections by VMA, as required by PE image | |
2830 | files. */ | |
2831 | ||
2832 | static int sort_by_secaddr PARAMS ((const PTR, const PTR)); | |
2833 | ||
2834 | static int | |
2835 | sort_by_secaddr (arg1, arg2) | |
2836 | const PTR arg1; | |
2837 | const PTR arg2; | |
2838 | { | |
2839 | const asection *a = *(const asection **) arg1; | |
2840 | const asection *b = *(const asection **) arg2; | |
2841 | ||
2842 | if (a->vma < b->vma) | |
2843 | return -1; | |
2844 | else if (a->vma > b->vma) | |
2845 | return 1; | |
2846 | else | |
2847 | return 0; | |
2848 | } | |
2849 | ||
2850 | #endif /* COFF_IMAGE_WITH_PE */ | |
252b5132 | 2851 | |
e60b52c6 | 2852 | /* Calculate the file position for each section. */ |
252b5132 RH |
2853 | |
2854 | #ifndef I960 | |
2855 | #define ALIGN_SECTIONS_IN_FILE | |
2856 | #endif | |
81635ce4 | 2857 | #if defined(TIC80COFF) || defined(TICOFF) |
252b5132 RH |
2858 | #undef ALIGN_SECTIONS_IN_FILE |
2859 | #endif | |
2860 | ||
2861 | static boolean | |
2862 | coff_compute_section_file_positions (abfd) | |
2863 | bfd * abfd; | |
2864 | { | |
2865 | asection *current; | |
2866 | asection *previous = (asection *) NULL; | |
6b3b007b | 2867 | file_ptr sofar = bfd_coff_filhsz (abfd); |
252b5132 | 2868 | boolean align_adjust; |
252b5132 RH |
2869 | #ifdef ALIGN_SECTIONS_IN_FILE |
2870 | file_ptr old_sofar; | |
2871 | #endif | |
2872 | ||
2873 | #ifdef RS6000COFF_C | |
2874 | /* On XCOFF, if we have symbols, set up the .debug section. */ | |
2875 | if (bfd_get_symcount (abfd) > 0) | |
2876 | { | |
2877 | bfd_size_type sz; | |
2878 | bfd_size_type i, symcount; | |
2879 | asymbol **symp; | |
2880 | ||
2881 | sz = 0; | |
2882 | symcount = bfd_get_symcount (abfd); | |
2883 | for (symp = abfd->outsymbols, i = 0; i < symcount; symp++, i++) | |
2884 | { | |
2885 | coff_symbol_type *cf; | |
2886 | ||
2887 | cf = coff_symbol_from (abfd, *symp); | |
2888 | if (cf != NULL | |
2889 | && cf->native != NULL | |
2890 | && SYMNAME_IN_DEBUG (&cf->native->u.syment)) | |
2891 | { | |
2892 | size_t len; | |
2893 | ||
2894 | len = strlen (bfd_asymbol_name (*symp)); | |
7f6d05e8 CP |
2895 | if (len > SYMNMLEN || bfd_coff_force_symnames_in_strings (abfd)) |
2896 | sz += len + 1 + bfd_coff_debug_string_prefix_length (abfd); | |
252b5132 RH |
2897 | } |
2898 | } | |
2899 | if (sz > 0) | |
2900 | { | |
2901 | asection *dsec; | |
2902 | ||
2903 | dsec = bfd_make_section_old_way (abfd, ".debug"); | |
2904 | if (dsec == NULL) | |
2905 | abort (); | |
2906 | dsec->_raw_size = sz; | |
2907 | dsec->flags |= SEC_HAS_CONTENTS; | |
2908 | } | |
2909 | } | |
2910 | #endif | |
2911 | ||
2912 | #ifdef COFF_IMAGE_WITH_PE | |
2913 | int page_size; | |
e60b52c6 | 2914 | if (coff_data (abfd)->link_info) |
252b5132 RH |
2915 | { |
2916 | page_size = pe_data (abfd)->pe_opthdr.FileAlignment; | |
2917 | } | |
2918 | else | |
2919 | page_size = PE_DEF_FILE_ALIGNMENT; | |
2920 | #else | |
2921 | #ifdef COFF_PAGE_SIZE | |
2922 | int page_size = COFF_PAGE_SIZE; | |
2923 | #endif | |
2924 | #endif | |
2925 | ||
2926 | if (bfd_get_start_address (abfd)) | |
2927 | { | |
2928 | /* A start address may have been added to the original file. In this | |
2929 | case it will need an optional header to record it. */ | |
2930 | abfd->flags |= EXEC_P; | |
2931 | } | |
2932 | ||
2933 | if (abfd->flags & EXEC_P) | |
6b3b007b | 2934 | sofar += bfd_coff_aoutsz (abfd); |
252b5132 RH |
2935 | #ifdef RS6000COFF_C |
2936 | else if (xcoff_data (abfd)->full_aouthdr) | |
6b3b007b | 2937 | sofar += bfd_coff_aoutsz (abfd); |
252b5132 RH |
2938 | else |
2939 | sofar += SMALL_AOUTSZ; | |
2940 | #endif | |
2941 | ||
6b3b007b | 2942 | sofar += abfd->section_count * bfd_coff_scnhsz (abfd); |
252b5132 RH |
2943 | |
2944 | #ifdef RS6000COFF_C | |
2945 | /* XCOFF handles overflows in the reloc and line number count fields | |
2946 | by allocating a new section header to hold the correct counts. */ | |
2947 | for (current = abfd->sections; current != NULL; current = current->next) | |
2948 | if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff) | |
6b3b007b | 2949 | sofar += bfd_coff_scnhsz (abfd); |
252b5132 RH |
2950 | #endif |
2951 | ||
75cc7189 ILT |
2952 | #ifdef COFF_IMAGE_WITH_PE |
2953 | { | |
2954 | /* PE requires the sections to be in memory order when listed in | |
2955 | the section headers. It also does not like empty loadable | |
2956 | sections. The sections apparently do not have to be in the | |
2957 | right order in the image file itself, but we do need to get the | |
2958 | target_index values right. */ | |
2959 | ||
dc810e39 | 2960 | unsigned int count; |
75cc7189 | 2961 | asection **section_list; |
dc810e39 | 2962 | unsigned int i; |
75cc7189 | 2963 | int target_index; |
dc810e39 | 2964 | bfd_size_type amt; |
75cc7189 ILT |
2965 | |
2966 | count = 0; | |
2967 | for (current = abfd->sections; current != NULL; current = current->next) | |
2968 | ++count; | |
2969 | ||
2970 | /* We allocate an extra cell to simplify the final loop. */ | |
dc810e39 AM |
2971 | amt = sizeof (struct asection *) * (count + 1); |
2972 | section_list = bfd_malloc (amt); | |
75cc7189 ILT |
2973 | if (section_list == NULL) |
2974 | return false; | |
2975 | ||
2976 | i = 0; | |
2977 | for (current = abfd->sections; current != NULL; current = current->next) | |
2978 | { | |
2979 | section_list[i] = current; | |
2980 | ++i; | |
2981 | } | |
2982 | section_list[i] = NULL; | |
2983 | ||
2984 | qsort (section_list, count, sizeof (asection *), sort_by_secaddr); | |
2985 | ||
2986 | /* Rethread the linked list into sorted order; at the same time, | |
2987 | assign target_index values. */ | |
2988 | target_index = 1; | |
2989 | abfd->sections = section_list[0]; | |
2990 | for (i = 0; i < count; i++) | |
2991 | { | |
2992 | current = section_list[i]; | |
2993 | current->next = section_list[i + 1]; | |
2994 | ||
2995 | /* Later, if the section has zero size, we'll be throwing it | |
2996 | away, so we don't want to number it now. Note that having | |
2997 | a zero size and having real contents are different | |
2998 | concepts: .bss has no contents, but (usually) non-zero | |
2999 | size. */ | |
3000 | if (current->_raw_size == 0) | |
3001 | { | |
3002 | /* Discard. However, it still might have (valid) symbols | |
3003 | in it, so arbitrarily set it to section 1 (indexing is | |
3004 | 1-based here; usually .text). __end__ and other | |
3005 | contents of .endsection really have this happen. | |
3006 | FIXME: This seems somewhat dubious. */ | |
3007 | current->target_index = 1; | |
3008 | } | |
3009 | else | |
3010 | current->target_index = target_index++; | |
3011 | } | |
3012 | ||
2fca4467 | 3013 | free (section_list); |
75cc7189 ILT |
3014 | } |
3015 | #else /* ! COFF_IMAGE_WITH_PE */ | |
3016 | { | |
3017 | /* Set the target_index field. */ | |
3018 | int target_index; | |
3019 | ||
3020 | target_index = 1; | |
3021 | for (current = abfd->sections; current != NULL; current = current->next) | |
3022 | current->target_index = target_index++; | |
3023 | } | |
3024 | #endif /* ! COFF_IMAGE_WITH_PE */ | |
3025 | ||
252b5132 | 3026 | align_adjust = false; |
75cc7189 | 3027 | for (current = abfd->sections; |
252b5132 | 3028 | current != (asection *) NULL; |
75cc7189 | 3029 | current = current->next) |
252b5132 RH |
3030 | { |
3031 | #ifdef COFF_IMAGE_WITH_PE | |
75cc7189 ILT |
3032 | /* With PE we have to pad each section to be a multiple of its |
3033 | page size too, and remember both sizes. */ | |
3034 | if (coff_section_data (abfd, current) == NULL) | |
252b5132 | 3035 | { |
dc810e39 AM |
3036 | bfd_size_type amt = sizeof (struct coff_section_tdata); |
3037 | current->used_by_bfd = (PTR) bfd_zalloc (abfd, amt); | |
75cc7189 ILT |
3038 | if (current->used_by_bfd == NULL) |
3039 | return false; | |
252b5132 | 3040 | } |
75cc7189 ILT |
3041 | if (pei_section_data (abfd, current) == NULL) |
3042 | { | |
dc810e39 AM |
3043 | bfd_size_type amt = sizeof (struct pei_section_tdata); |
3044 | coff_section_data (abfd, current)->tdata | |
3045 | = (PTR) bfd_zalloc (abfd, amt); | |
75cc7189 ILT |
3046 | if (coff_section_data (abfd, current)->tdata == NULL) |
3047 | return false; | |
3048 | } | |
3049 | if (pei_section_data (abfd, current)->virt_size == 0) | |
3050 | pei_section_data (abfd, current)->virt_size = current->_raw_size; | |
252b5132 RH |
3051 | #endif |
3052 | ||
75cc7189 | 3053 | /* Only deal with sections which have contents. */ |
252b5132 RH |
3054 | if (!(current->flags & SEC_HAS_CONTENTS)) |
3055 | continue; | |
3056 | ||
75cc7189 ILT |
3057 | #ifdef COFF_IMAGE_WITH_PE |
3058 | /* Make sure we skip empty sections in a PE image. */ | |
3059 | if (current->_raw_size == 0) | |
3060 | continue; | |
3061 | #endif | |
3062 | ||
252b5132 RH |
3063 | /* Align the sections in the file to the same boundary on |
3064 | which they are aligned in virtual memory. I960 doesn't | |
3065 | do this (FIXME) so we can stay in sync with Intel. 960 | |
e60b52c6 | 3066 | doesn't yet page from files... */ |
252b5132 RH |
3067 | #ifdef ALIGN_SECTIONS_IN_FILE |
3068 | if ((abfd->flags & EXEC_P) != 0) | |
3069 | { | |
3070 | /* make sure this section is aligned on the right boundary - by | |
3071 | padding the previous section up if necessary */ | |
3072 | ||
3073 | old_sofar = sofar; | |
47ede03a TR |
3074 | #ifdef RS6000COFF_C |
3075 | /* AIX loader checks the text section alignment of (vma - filepos) | |
3076 | So even though the filepos may be aligned wrt the o_algntext, for | |
3077 | AIX executables, this check fails. This shows up when an native | |
3078 | AIX executable is stripped with gnu strip because the default vma | |
3079 | of native is 0x10000150 but default for gnu is 0x10000140. Gnu | |
3080 | stripped gnu excutable passes this check because the filepos is | |
3081 | 0x0140. */ | |
3082 | if (!strcmp (current->name, _TEXT)) | |
3083 | { | |
3084 | bfd_vma pad; | |
3085 | bfd_vma align; | |
3086 | ||
3087 | sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); | |
3088 | ||
3089 | align = 1 << current->alignment_power; | |
3090 | pad = abs (current->vma - sofar) % align; | |
3091 | ||
3092 | if (pad) | |
3093 | { | |
3094 | pad = align - pad; | |
3095 | sofar += pad; | |
3096 | } | |
3097 | } | |
3098 | else | |
3099 | #else | |
3100 | { | |
3101 | sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); | |
3102 | } | |
3103 | #endif | |
252b5132 RH |
3104 | if (previous != (asection *) NULL) |
3105 | { | |
3106 | previous->_raw_size += sofar - old_sofar; | |
3107 | } | |
3108 | } | |
3109 | ||
3110 | #endif | |
3111 | ||
3112 | /* In demand paged files the low order bits of the file offset | |
3113 | must match the low order bits of the virtual address. */ | |
3114 | #ifdef COFF_PAGE_SIZE | |
3115 | if ((abfd->flags & D_PAGED) != 0 | |
3116 | && (current->flags & SEC_ALLOC) != 0) | |
3117 | sofar += (current->vma - sofar) % page_size; | |
3118 | #endif | |
3119 | current->filepos = sofar; | |
3120 | ||
3121 | #ifdef COFF_IMAGE_WITH_PE | |
75cc7189 | 3122 | /* Set the padded size. */ |
252b5132 RH |
3123 | current->_raw_size = (current->_raw_size + page_size -1) & -page_size; |
3124 | #endif | |
3125 | ||
3126 | sofar += current->_raw_size; | |
3127 | ||
3128 | #ifdef ALIGN_SECTIONS_IN_FILE | |
3129 | /* make sure that this section is of the right size too */ | |
3130 | if ((abfd->flags & EXEC_P) == 0) | |
3131 | { | |
3132 | bfd_size_type old_size; | |
3133 | ||
3134 | old_size = current->_raw_size; | |
3135 | current->_raw_size = BFD_ALIGN (current->_raw_size, | |
3136 | 1 << current->alignment_power); | |
3137 | align_adjust = current->_raw_size != old_size; | |
3138 | sofar += current->_raw_size - old_size; | |
3139 | } | |
3140 | else | |
3141 | { | |
3142 | old_sofar = sofar; | |
3143 | sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); | |
3144 | align_adjust = sofar != old_sofar; | |
3145 | current->_raw_size += sofar - old_sofar; | |
3146 | } | |
3147 | #endif | |
3148 | ||
3149 | #ifdef COFF_IMAGE_WITH_PE | |
3150 | /* For PE we need to make sure we pad out to the aligned | |
3151 | _raw_size, in case the caller only writes out data to the | |
3152 | unaligned _raw_size. */ | |
3153 | if (pei_section_data (abfd, current)->virt_size < current->_raw_size) | |
3154 | align_adjust = true; | |
3155 | #endif | |
3156 | ||
3157 | #ifdef _LIB | |
3158 | /* Force .lib sections to start at zero. The vma is then | |
3159 | incremented in coff_set_section_contents. This is right for | |
3160 | SVR3.2. */ | |
3161 | if (strcmp (current->name, _LIB) == 0) | |
3162 | bfd_set_section_vma (abfd, current, 0); | |
3163 | #endif | |
3164 | ||
3165 | previous = current; | |
3166 | } | |
3167 | ||
3168 | /* It is now safe to write to the output file. If we needed an | |
3169 | alignment adjustment for the last section, then make sure that | |
3170 | there is a byte at offset sofar. If there are no symbols and no | |
3171 | relocs, then nothing follows the last section. If we don't force | |
3172 | the last byte out, then the file may appear to be truncated. */ | |
3173 | if (align_adjust) | |
3174 | { | |
3175 | bfd_byte b; | |
3176 | ||
3177 | b = 0; | |
3178 | if (bfd_seek (abfd, sofar - 1, SEEK_SET) != 0 | |
dc810e39 | 3179 | || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1) |
252b5132 RH |
3180 | return false; |
3181 | } | |
3182 | ||
3183 | /* Make sure the relocations are aligned. We don't need to make | |
3184 | sure that this byte exists, because it will only matter if there | |
3185 | really are relocs. */ | |
3186 | sofar = BFD_ALIGN (sofar, 1 << COFF_DEFAULT_SECTION_ALIGNMENT_POWER); | |
3187 | ||
3188 | obj_relocbase (abfd) = sofar; | |
3189 | abfd->output_has_begun = true; | |
3190 | ||
3191 | return true; | |
3192 | } | |
3193 | ||
3194 | #if 0 | |
3195 | ||
3196 | /* This can never work, because it is called too late--after the | |
3197 | section positions have been set. I can't figure out what it is | |
3198 | for, so I am going to disable it--Ian Taylor 20 March 1996. */ | |
3199 | ||
3200 | /* If .file, .text, .data, .bss symbols are missing, add them. */ | |
3201 | /* @@ Should we only be adding missing symbols, or overriding the aux | |
3202 | values for existing section symbols? */ | |
3203 | static boolean | |
3204 | coff_add_missing_symbols (abfd) | |
3205 | bfd *abfd; | |
3206 | { | |
3207 | unsigned int nsyms = bfd_get_symcount (abfd); | |
3208 | asymbol **sympp = abfd->outsymbols; | |
3209 | asymbol **sympp2; | |
3210 | unsigned int i; | |
3211 | int need_text = 1, need_data = 1, need_bss = 1, need_file = 1; | |
dc810e39 | 3212 | bfd_size_type amt; |
252b5132 RH |
3213 | |
3214 | for (i = 0; i < nsyms; i++) | |
3215 | { | |
3216 | coff_symbol_type *csym = coff_symbol_from (abfd, sympp[i]); | |
dc810e39 | 3217 | const char *name; |
252b5132 RH |
3218 | if (csym) |
3219 | { | |
3220 | /* only do this if there is a coff representation of the input | |
3221 | symbol */ | |
3222 | if (csym->native && csym->native->u.syment.n_sclass == C_FILE) | |
3223 | { | |
3224 | need_file = 0; | |
3225 | continue; | |
3226 | } | |
3227 | name = csym->symbol.name; | |
3228 | if (!name) | |
3229 | continue; | |
3230 | if (!strcmp (name, _TEXT)) | |
3231 | need_text = 0; | |
3232 | #ifdef APOLLO_M68 | |
3233 | else if (!strcmp (name, ".wtext")) | |
3234 | need_text = 0; | |
3235 | #endif | |
3236 | else if (!strcmp (name, _DATA)) | |
3237 | need_data = 0; | |
3238 | else if (!strcmp (name, _BSS)) | |
3239 | need_bss = 0; | |
3240 | } | |
3241 | } | |
3242 | /* Now i == bfd_get_symcount (abfd). */ | |
3243 | /* @@ For now, don't deal with .file symbol. */ | |
3244 | need_file = 0; | |
3245 | ||
3246 | if (!need_text && !need_data && !need_bss && !need_file) | |
3247 | return true; | |
3248 | nsyms += need_text + need_data + need_bss + need_file; | |
dc810e39 AM |
3249 | amt = nsyms; |
3250 | amt *= sizeof (asymbol *); | |
3251 | sympp2 = (asymbol **) bfd_alloc (abfd, amt); | |
252b5132 RH |
3252 | if (!sympp2) |
3253 | return false; | |
3254 | memcpy (sympp2, sympp, i * sizeof (asymbol *)); | |
3255 | if (need_file) | |
3256 | { | |
3257 | /* @@ Generate fake .file symbol, in sympp2[i], and increment i. */ | |
3258 | abort (); | |
3259 | } | |
3260 | if (need_text) | |
3261 | sympp2[i++] = coff_section_symbol (abfd, _TEXT); | |
3262 | if (need_data) | |
3263 | sympp2[i++] = coff_section_symbol (abfd, _DATA); | |
3264 | if (need_bss) | |
3265 | sympp2[i++] = coff_section_symbol (abfd, _BSS); | |
3266 | BFD_ASSERT (i == nsyms); | |
3267 | bfd_set_symtab (abfd, sympp2, nsyms); | |
3268 | return true; | |
3269 | } | |
3270 | ||
3271 | #endif /* 0 */ | |
3272 | ||
3273 | /* SUPPRESS 558 */ | |
3274 | /* SUPPRESS 529 */ | |
3275 | static boolean | |
3276 | coff_write_object_contents (abfd) | |
3277 | bfd * abfd; | |
3278 | { | |
3279 | asection *current; | |
3280 | boolean hasrelocs = false; | |
3281 | boolean haslinno = false; | |
4cfec37b | 3282 | boolean hasdebug = false; |
252b5132 RH |
3283 | file_ptr scn_base; |
3284 | file_ptr reloc_base; | |
3285 | file_ptr lineno_base; | |
3286 | file_ptr sym_base; | |
3e4554a2 | 3287 | unsigned long reloc_size = 0, reloc_count = 0; |
252b5132 RH |
3288 | unsigned long lnno_size = 0; |
3289 | boolean long_section_names; | |
3290 | asection *text_sec = NULL; | |
3291 | asection *data_sec = NULL; | |
3292 | asection *bss_sec = NULL; | |
3293 | struct internal_filehdr internal_f; | |
3294 | struct internal_aouthdr internal_a; | |
3295 | #ifdef COFF_LONG_SECTION_NAMES | |
3296 | size_t string_size = STRING_SIZE_SIZE; | |
3297 | #endif | |
3298 | ||
3299 | bfd_set_error (bfd_error_system_call); | |
3300 | ||
3301 | /* Make a pass through the symbol table to count line number entries and | |
3302 | put them into the correct asections */ | |
3303 | ||
6b3b007b | 3304 | lnno_size = coff_count_linenumbers (abfd) * bfd_coff_linesz (abfd); |
252b5132 RH |
3305 | |
3306 | if (abfd->output_has_begun == false) | |
3307 | { | |
3308 | if (! coff_compute_section_file_positions (abfd)) | |
3309 | return false; | |
3310 | } | |
3311 | ||
3312 | reloc_base = obj_relocbase (abfd); | |
3313 | ||
3314 | /* Work out the size of the reloc and linno areas */ | |
3315 | ||
3316 | for (current = abfd->sections; current != NULL; current = | |
3317 | current->next) | |
3e4554a2 DD |
3318 | { |
3319 | #ifdef COFF_WITH_PE | |
3320 | /* we store the actual reloc count in the first reloc's addr */ | |
3321 | if (current->reloc_count > 0xffff) | |
3322 | reloc_count ++; | |
3323 | #endif | |
3324 | reloc_count += current->reloc_count; | |
3325 | } | |
3326 | ||
3327 | reloc_size = reloc_count * bfd_coff_relsz (abfd); | |
252b5132 RH |
3328 | |
3329 | lineno_base = reloc_base + reloc_size; | |
3330 | sym_base = lineno_base + lnno_size; | |
3331 | ||
3332 | /* Indicate in each section->line_filepos its actual file address */ | |
3333 | for (current = abfd->sections; current != NULL; current = | |
3334 | current->next) | |
3335 | { | |
3336 | if (current->lineno_count) | |
3337 | { | |
3338 | current->line_filepos = lineno_base; | |
3339 | current->moving_line_filepos = lineno_base; | |
6b3b007b | 3340 | lineno_base += current->lineno_count * bfd_coff_linesz (abfd); |
252b5132 RH |
3341 | } |
3342 | else | |
3343 | { | |
3344 | current->line_filepos = 0; | |
3345 | } | |
3346 | if (current->reloc_count) | |
3347 | { | |
3348 | current->rel_filepos = reloc_base; | |
6b3b007b | 3349 | reloc_base += current->reloc_count * bfd_coff_relsz (abfd); |
3e4554a2 DD |
3350 | #ifdef COFF_WITH_PE |
3351 | /* extra reloc to hold real count */ | |
3352 | if (current->reloc_count > 0xffff) | |
3353 | reloc_base += bfd_coff_relsz (abfd); | |
3354 | #endif | |
252b5132 RH |
3355 | } |
3356 | else | |
3357 | { | |
3358 | current->rel_filepos = 0; | |
3359 | } | |
3360 | } | |
3361 | ||
3362 | /* Write section headers to the file. */ | |
3363 | internal_f.f_nscns = 0; | |
3364 | ||
3365 | if ((abfd->flags & EXEC_P) != 0) | |
6b3b007b | 3366 | scn_base = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd); |
252b5132 RH |
3367 | else |
3368 | { | |
6b3b007b | 3369 | scn_base = bfd_coff_filhsz (abfd); |
252b5132 | 3370 | #ifdef RS6000COFF_C |
dc810e39 | 3371 | #ifndef XCOFF64 |
252b5132 | 3372 | if (xcoff_data (abfd)->full_aouthdr) |
6b3b007b | 3373 | scn_base += bfd_coff_aoutsz (abfd); |
252b5132 RH |
3374 | else |
3375 | scn_base += SMALL_AOUTSZ; | |
dc810e39 | 3376 | #endif |
252b5132 RH |
3377 | #endif |
3378 | } | |
3379 | ||
3380 | if (bfd_seek (abfd, scn_base, SEEK_SET) != 0) | |
3381 | return false; | |
3382 | ||
3383 | long_section_names = false; | |
3384 | for (current = abfd->sections; | |
3385 | current != NULL; | |
3386 | current = current->next) | |
3387 | { | |
3388 | struct internal_scnhdr section; | |
4cfec37b | 3389 | boolean is_reloc_section = false; |
252b5132 RH |
3390 | |
3391 | #ifdef COFF_IMAGE_WITH_PE | |
3392 | if (strcmp (current->name, ".reloc") == 0) | |
3393 | { | |
4cfec37b ILT |
3394 | is_reloc_section = true; |
3395 | hasrelocs = true; | |
252b5132 RH |
3396 | pe_data (abfd)->has_reloc_section = 1; |
3397 | } | |
3398 | #endif | |
3399 | ||
252b5132 RH |
3400 | internal_f.f_nscns++; |
3401 | ||
3402 | strncpy (section.s_name, current->name, SCNNMLEN); | |
3403 | ||
3404 | #ifdef COFF_LONG_SECTION_NAMES | |
3405 | /* Handle long section names as in PE. This must be compatible | |
00692651 | 3406 | with the code in coff_write_symbols and _bfd_coff_final_link. */ |
252b5132 RH |
3407 | { |
3408 | size_t len; | |
3409 | ||
3410 | len = strlen (current->name); | |
3411 | if (len > SCNNMLEN) | |
3412 | { | |
3413 | memset (section.s_name, 0, SCNNMLEN); | |
3414 | sprintf (section.s_name, "/%lu", (unsigned long) string_size); | |
3415 | string_size += len + 1; | |
3416 | long_section_names = true; | |
3417 | } | |
3418 | } | |
3419 | #endif | |
3420 | ||
3421 | #ifdef _LIB | |
3422 | /* Always set s_vaddr of .lib to 0. This is right for SVR3.2 | |
3423 | Ian Taylor <ian@cygnus.com>. */ | |
3424 | if (strcmp (current->name, _LIB) == 0) | |
3425 | section.s_vaddr = 0; | |
3426 | else | |
3427 | #endif | |
3428 | section.s_vaddr = current->vma; | |
3429 | section.s_paddr = current->lma; | |
3430 | section.s_size = current->_raw_size; | |
b9af77f5 | 3431 | #ifdef coff_get_section_load_page |
e60b52c6 | 3432 | section.s_page = coff_get_section_load_page (current); |
b9af77f5 | 3433 | #endif |
252b5132 RH |
3434 | |
3435 | #ifdef COFF_WITH_PE | |
3436 | section.s_paddr = 0; | |
3437 | #endif | |
3438 | #ifdef COFF_IMAGE_WITH_PE | |
3439 | /* Reminder: s_paddr holds the virtual size of the section. */ | |
3440 | if (coff_section_data (abfd, current) != NULL | |
3441 | && pei_section_data (abfd, current) != NULL) | |
3442 | section.s_paddr = pei_section_data (abfd, current)->virt_size; | |
3443 | else | |
3444 | section.s_paddr = 0; | |
3445 | #endif | |
3446 | ||
3447 | /* | |
3448 | If this section has no size or is unloadable then the scnptr | |
3449 | will be 0 too | |
3450 | */ | |
3451 | if (current->_raw_size == 0 || | |
3452 | (current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
3453 | { | |
3454 | section.s_scnptr = 0; | |
3455 | } | |
3456 | else | |
3457 | { | |
3458 | section.s_scnptr = current->filepos; | |
3459 | } | |
3460 | section.s_relptr = current->rel_filepos; | |
3461 | section.s_lnnoptr = current->line_filepos; | |
3462 | section.s_nreloc = current->reloc_count; | |
3463 | section.s_nlnno = current->lineno_count; | |
79207490 ILT |
3464 | #ifndef COFF_IMAGE_WITH_PE |
3465 | /* In PEI, relocs come in the .reloc section. */ | |
252b5132 RH |
3466 | if (current->reloc_count != 0) |
3467 | hasrelocs = true; | |
79207490 | 3468 | #endif |
252b5132 RH |
3469 | if (current->lineno_count != 0) |
3470 | haslinno = true; | |
4cfec37b ILT |
3471 | if ((current->flags & SEC_DEBUGGING) != 0 |
3472 | && ! is_reloc_section) | |
3473 | hasdebug = true; | |
252b5132 | 3474 | |
60bcf0fa | 3475 | #ifdef RS6000COFF_C |
7f6d05e8 | 3476 | #ifndef XCOFF64 |
252b5132 RH |
3477 | /* Indicate the use of an XCOFF overflow section header. */ |
3478 | if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff) | |
3479 | { | |
3480 | section.s_nreloc = 0xffff; | |
3481 | section.s_nlnno = 0xffff; | |
3482 | } | |
7f6d05e8 | 3483 | #endif |
252b5132 RH |
3484 | #endif |
3485 | ||
3486 | section.s_flags = sec_to_styp_flags (current->name, current->flags); | |
3487 | ||
3488 | if (!strcmp (current->name, _TEXT)) | |
3489 | { | |
3490 | text_sec = current; | |
3491 | } | |
3492 | else if (!strcmp (current->name, _DATA)) | |
3493 | { | |
3494 | data_sec = current; | |
3495 | } | |
3496 | else if (!strcmp (current->name, _BSS)) | |
3497 | { | |
3498 | bss_sec = current; | |
3499 | } | |
3500 | ||
3501 | #ifdef I960 | |
3502 | section.s_align = (current->alignment_power | |
3503 | ? 1 << current->alignment_power | |
3504 | : 0); | |
81635ce4 | 3505 | #endif |
e60b52c6 | 3506 | #ifdef TIC80COFF |
81635ce4 | 3507 | /* TI COFF puts the alignment power in bits 8-11 of the flags */ |
252b5132 RH |
3508 | section.s_flags |= (current->alignment_power & 0xF) << 8; |
3509 | #endif | |
81635ce4 TW |
3510 | #ifdef COFF_ENCODE_ALIGNMENT |
3511 | COFF_ENCODE_ALIGNMENT(section, current->alignment_power); | |
252b5132 RH |
3512 | #endif |
3513 | ||
3514 | #ifdef COFF_IMAGE_WITH_PE | |
00692651 ILT |
3515 | /* Suppress output of the sections if they are null. ld |
3516 | includes the bss and data sections even if there is no size | |
3517 | assigned to them. NT loader doesn't like it if these section | |
3518 | headers are included if the sections themselves are not | |
3519 | needed. See also coff_compute_section_file_positions. */ | |
252b5132 RH |
3520 | if (section.s_size == 0) |
3521 | internal_f.f_nscns--; | |
3522 | else | |
3523 | #endif | |
3524 | { | |
3525 | SCNHDR buff; | |
dc810e39 AM |
3526 | bfd_size_type amt = bfd_coff_scnhsz (abfd); |
3527 | ||
252b5132 | 3528 | if (coff_swap_scnhdr_out (abfd, §ion, &buff) == 0 |
dc810e39 | 3529 | || bfd_bwrite ((PTR) &buff, amt, abfd) != amt) |
252b5132 RH |
3530 | return false; |
3531 | } | |
3532 | ||
3533 | #ifdef COFF_WITH_PE | |
3534 | /* PE stores COMDAT section information in the symbol table. If | |
3535 | this section is supposed to have some COMDAT info, track down | |
3536 | the symbol in the symbol table and modify it. */ | |
3537 | if ((current->flags & SEC_LINK_ONCE) != 0) | |
3538 | { | |
3539 | unsigned int i, count; | |
3540 | asymbol **psym; | |
3541 | coff_symbol_type *csym = NULL; | |
3542 | asymbol **psymsec; | |
3543 | ||
3544 | psymsec = NULL; | |
3545 | count = bfd_get_symcount (abfd); | |
3546 | for (i = 0, psym = abfd->outsymbols; i < count; i++, psym++) | |
3547 | { | |
3548 | if ((*psym)->section != current) | |
3549 | continue; | |
3550 | ||
3551 | /* Remember the location of the first symbol in this | |
3552 | section. */ | |
3553 | if (psymsec == NULL) | |
3554 | psymsec = psym; | |
3555 | ||
3556 | /* See if this is the section symbol. */ | |
3557 | if (strcmp ((*psym)->name, current->name) == 0) | |
3558 | { | |
3559 | csym = coff_symbol_from (abfd, *psym); | |
3560 | if (csym == NULL | |
3561 | || csym->native == NULL | |
3562 | || csym->native->u.syment.n_numaux < 1 | |
3563 | || csym->native->u.syment.n_sclass != C_STAT | |
3564 | || csym->native->u.syment.n_type != T_NULL) | |
3565 | continue; | |
3566 | ||
3567 | /* Here *PSYM is the section symbol for CURRENT. */ | |
3568 | ||
3569 | break; | |
3570 | } | |
3571 | } | |
3572 | ||
3573 | /* Did we find it? | |
3574 | Note that we might not if we're converting the file from | |
3575 | some other object file format. */ | |
3576 | if (i < count) | |
3577 | { | |
3578 | combined_entry_type *aux; | |
3579 | ||
3580 | /* We don't touch the x_checksum field. The | |
3581 | x_associated field is not currently supported. */ | |
3582 | ||
3583 | aux = csym->native + 1; | |
3584 | switch (current->flags & SEC_LINK_DUPLICATES) | |
3585 | { | |
3586 | case SEC_LINK_DUPLICATES_DISCARD: | |
3587 | aux->u.auxent.x_scn.x_comdat = IMAGE_COMDAT_SELECT_ANY; | |
3588 | break; | |
3589 | ||
3590 | case SEC_LINK_DUPLICATES_ONE_ONLY: | |
3591 | aux->u.auxent.x_scn.x_comdat = | |
3592 | IMAGE_COMDAT_SELECT_NODUPLICATES; | |
3593 | break; | |
3594 | ||
3595 | case SEC_LINK_DUPLICATES_SAME_SIZE: | |
3596 | aux->u.auxent.x_scn.x_comdat = | |
3597 | IMAGE_COMDAT_SELECT_SAME_SIZE; | |
3598 | break; | |
3599 | ||
3600 | case SEC_LINK_DUPLICATES_SAME_CONTENTS: | |
3601 | aux->u.auxent.x_scn.x_comdat = | |
3602 | IMAGE_COMDAT_SELECT_EXACT_MATCH; | |
3603 | break; | |
3604 | } | |
3605 | ||
3606 | /* The COMDAT symbol must be the first symbol from this | |
3607 | section in the symbol table. In order to make this | |
3608 | work, we move the COMDAT symbol before the first | |
3609 | symbol we found in the search above. It's OK to | |
3610 | rearrange the symbol table at this point, because | |
3611 | coff_renumber_symbols is going to rearrange it | |
3612 | further and fix up all the aux entries. */ | |
3613 | if (psym != psymsec) | |
3614 | { | |
3615 | asymbol *hold; | |
3616 | asymbol **pcopy; | |
3617 | ||
3618 | hold = *psym; | |
3619 | for (pcopy = psym; pcopy > psymsec; pcopy--) | |
3620 | pcopy[0] = pcopy[-1]; | |
3621 | *psymsec = hold; | |
3622 | } | |
3623 | } | |
3624 | } | |
3625 | #endif /* COFF_WITH_PE */ | |
3626 | } | |
3627 | ||
3628 | #ifdef RS6000COFF_C | |
dc810e39 | 3629 | #ifndef XCOFF64 |
252b5132 RH |
3630 | /* XCOFF handles overflows in the reloc and line number count fields |
3631 | by creating a new section header to hold the correct values. */ | |
3632 | for (current = abfd->sections; current != NULL; current = current->next) | |
3633 | { | |
3634 | if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff) | |
3635 | { | |
3636 | struct internal_scnhdr scnhdr; | |
3637 | SCNHDR buff; | |
dc810e39 | 3638 | bfd_size_type amt; |
252b5132 RH |
3639 | |
3640 | internal_f.f_nscns++; | |
3641 | strncpy (&(scnhdr.s_name[0]), current->name, 8); | |
3642 | scnhdr.s_paddr = current->reloc_count; | |
3643 | scnhdr.s_vaddr = current->lineno_count; | |
3644 | scnhdr.s_size = 0; | |
3645 | scnhdr.s_scnptr = 0; | |
3646 | scnhdr.s_relptr = current->rel_filepos; | |
3647 | scnhdr.s_lnnoptr = current->line_filepos; | |
3648 | scnhdr.s_nreloc = current->target_index; | |
3649 | scnhdr.s_nlnno = current->target_index; | |
3650 | scnhdr.s_flags = STYP_OVRFLO; | |
dc810e39 | 3651 | amt = bfd_coff_scnhsz (abfd); |
252b5132 | 3652 | if (coff_swap_scnhdr_out (abfd, &scnhdr, &buff) == 0 |
dc810e39 | 3653 | || bfd_bwrite ((PTR) &buff, amt, abfd) != amt) |
252b5132 RH |
3654 | return false; |
3655 | } | |
3656 | } | |
beb1bf64 | 3657 | #endif |
252b5132 RH |
3658 | #endif |
3659 | ||
e60b52c6 | 3660 | /* OK, now set up the filehdr... */ |
252b5132 RH |
3661 | |
3662 | /* Don't include the internal abs section in the section count */ | |
3663 | ||
3664 | /* | |
3665 | We will NOT put a fucking timestamp in the header here. Every time you | |
3666 | put it back, I will come in and take it out again. I'm sorry. This | |
3667 | field does not belong here. We fill it with a 0 so it compares the | |
3668 | same but is not a reasonable time. -- gnu@cygnus.com | |
3669 | */ | |
3670 | internal_f.f_timdat = 0; | |
3671 | ||
3672 | internal_f.f_flags = 0; | |
3673 | ||
3674 | if (abfd->flags & EXEC_P) | |
6b3b007b | 3675 | internal_f.f_opthdr = bfd_coff_aoutsz (abfd); |
252b5132 RH |
3676 | else |
3677 | { | |
3678 | internal_f.f_opthdr = 0; | |
3679 | #ifdef RS6000COFF_C | |
dc810e39 | 3680 | #ifndef XCOFF64 |
252b5132 | 3681 | if (xcoff_data (abfd)->full_aouthdr) |
6b3b007b | 3682 | internal_f.f_opthdr = bfd_coff_aoutsz (abfd); |
252b5132 RH |
3683 | else |
3684 | internal_f.f_opthdr = SMALL_AOUTSZ; | |
dc810e39 | 3685 | #endif |
252b5132 RH |
3686 | #endif |
3687 | } | |
3688 | ||
3689 | if (!hasrelocs) | |
3690 | internal_f.f_flags |= F_RELFLG; | |
3691 | if (!haslinno) | |
3692 | internal_f.f_flags |= F_LNNO; | |
3693 | if (abfd->flags & EXEC_P) | |
3694 | internal_f.f_flags |= F_EXEC; | |
4cfec37b ILT |
3695 | #ifdef COFF_IMAGE_WITH_PE |
3696 | if (! hasdebug) | |
3697 | internal_f.f_flags |= IMAGE_FILE_DEBUG_STRIPPED; | |
3698 | #endif | |
252b5132 | 3699 | |
8a1ad8e7 | 3700 | #ifndef COFF_WITH_PE |
252b5132 RH |
3701 | if (bfd_little_endian (abfd)) |
3702 | internal_f.f_flags |= F_AR32WR; | |
3703 | else | |
3704 | internal_f.f_flags |= F_AR32W; | |
8a1ad8e7 | 3705 | #endif |
252b5132 | 3706 | |
81635ce4 TW |
3707 | #ifdef TI_TARGET_ID |
3708 | /* target id is used in TI COFF v1 and later; COFF0 won't use this field, | |
3709 | but it doesn't hurt to set it internally */ | |
3710 | internal_f.f_target_id = TI_TARGET_ID; | |
3711 | #endif | |
252b5132 RH |
3712 | #ifdef TIC80_TARGET_ID |
3713 | internal_f.f_target_id = TIC80_TARGET_ID; | |
3714 | #endif | |
3715 | ||
3716 | /* | |
3717 | FIXME, should do something about the other byte orders and | |
3718 | architectures. | |
3719 | */ | |
3720 | ||
3721 | #ifdef RS6000COFF_C | |
3722 | if ((abfd->flags & DYNAMIC) != 0) | |
3723 | internal_f.f_flags |= F_SHROBJ; | |
3724 | if (bfd_get_section_by_name (abfd, _LOADER) != NULL) | |
3725 | internal_f.f_flags |= F_DYNLOAD; | |
3726 | #endif | |
3727 | ||
3728 | memset (&internal_a, 0, sizeof internal_a); | |
3729 | ||
3730 | /* Set up architecture-dependent stuff */ | |
3731 | ||
3732 | { | |
3733 | unsigned int magic = 0; | |
3734 | unsigned short flags = 0; | |
3735 | coff_set_flags (abfd, &magic, &flags); | |
3736 | internal_f.f_magic = magic; | |
3737 | internal_f.f_flags |= flags; | |
e60b52c6 | 3738 | /* ...and the "opt"hdr... */ |
252b5132 RH |
3739 | |
3740 | #ifdef A29K | |
3741 | #ifdef ULTRA3 /* NYU's machine */ | |
3742 | /* FIXME: This is a bogus check. I really want to see if there | |
3743 | * is a .shbss or a .shdata section, if so then set the magic | |
3744 | * number to indicate a shared data executable. | |
3745 | */ | |
3746 | if (internal_f.f_nscns >= 7) | |
3747 | internal_a.magic = SHMAGIC; /* Shared magic */ | |
3748 | else | |
3749 | #endif /* ULTRA3 */ | |
3750 | internal_a.magic = NMAGIC; /* Assume separate i/d */ | |
3751 | #define __A_MAGIC_SET__ | |
3752 | #endif /* A29K */ | |
81635ce4 TW |
3753 | #ifdef TICOFF_AOUT_MAGIC |
3754 | internal_a.magic = TICOFF_AOUT_MAGIC; | |
3755 | #define __A_MAGIC_SET__ | |
3756 | #endif | |
252b5132 RH |
3757 | #ifdef TIC80COFF |
3758 | internal_a.magic = TIC80_ARCH_MAGIC; | |
3759 | #define __A_MAGIC_SET__ | |
3760 | #endif /* TIC80 */ | |
3761 | #ifdef I860 | |
3762 | /* FIXME: What are the a.out magic numbers for the i860? */ | |
3763 | internal_a.magic = 0; | |
3764 | #define __A_MAGIC_SET__ | |
3765 | #endif /* I860 */ | |
3766 | #ifdef I960 | |
3767 | internal_a.magic = (magic == I960ROMAGIC ? NMAGIC : OMAGIC); | |
3768 | #define __A_MAGIC_SET__ | |
3769 | #endif /* I960 */ | |
3770 | #if M88 | |
3771 | #define __A_MAGIC_SET__ | |
3772 | internal_a.magic = PAGEMAGICBCS; | |
3773 | #endif /* M88 */ | |
3774 | ||
3775 | #if APOLLO_M68 | |
3776 | #define __A_MAGIC_SET__ | |
3777 | internal_a.magic = APOLLO_COFF_VERSION_NUMBER; | |
3778 | #endif | |
3779 | ||
3780 | #if defined(M68) || defined(WE32K) || defined(M68K) | |
3781 | #define __A_MAGIC_SET__ | |
3782 | #if defined(LYNXOS) | |
3783 | internal_a.magic = LYNXCOFFMAGIC; | |
3784 | #else | |
3785 | #if defined(TARG_AUX) | |
3786 | internal_a.magic = (abfd->flags & D_PAGED ? PAGEMAGICPEXECPAGED : | |
3787 | abfd->flags & WP_TEXT ? PAGEMAGICPEXECSWAPPED : | |
3788 | PAGEMAGICEXECSWAPPED); | |
3789 | #else | |
3790 | #if defined (PAGEMAGICPEXECPAGED) | |
3791 | internal_a.magic = PAGEMAGICPEXECPAGED; | |
3792 | #endif | |
3793 | #endif /* TARG_AUX */ | |
3794 | #endif /* LYNXOS */ | |
3795 | #endif /* M68 || WE32K || M68K */ | |
3796 | ||
3797 | #if defined(ARM) | |
3798 | #define __A_MAGIC_SET__ | |
3799 | internal_a.magic = ZMAGIC; | |
e60b52c6 | 3800 | #endif |
252b5132 RH |
3801 | |
3802 | #if defined(PPC_PE) | |
3803 | #define __A_MAGIC_SET__ | |
3804 | internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC; | |
3805 | #endif | |
3806 | ||
3807 | #if defined MCORE_PE | |
3808 | #define __A_MAGIC_SET__ | |
3809 | internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC; | |
e60b52c6 | 3810 | #endif |
252b5132 RH |
3811 | |
3812 | #if defined(I386) | |
3813 | #define __A_MAGIC_SET__ | |
3814 | #if defined(LYNXOS) | |
3815 | internal_a.magic = LYNXCOFFMAGIC; | |
3816 | #else /* LYNXOS */ | |
3817 | internal_a.magic = ZMAGIC; | |
3818 | #endif /* LYNXOS */ | |
3819 | #endif /* I386 */ | |
3820 | ||
fac41780 JW |
3821 | #if defined(IA64) |
3822 | #define __A_MAGIC_SET__ | |
3823 | internal_a.magic = ZMAGIC; | |
3824 | #endif /* IA64 */ | |
3825 | ||
252b5132 RH |
3826 | #if defined(SPARC) |
3827 | #define __A_MAGIC_SET__ | |
3828 | #if defined(LYNXOS) | |
3829 | internal_a.magic = LYNXCOFFMAGIC; | |
3830 | #endif /* LYNXOS */ | |
3831 | #endif /* SPARC */ | |
3832 | ||
3833 | #ifdef RS6000COFF_C | |
3834 | #define __A_MAGIC_SET__ | |
3835 | internal_a.magic = (abfd->flags & D_PAGED) ? RS6K_AOUTHDR_ZMAGIC : | |
3836 | (abfd->flags & WP_TEXT) ? RS6K_AOUTHDR_NMAGIC : | |
3837 | RS6K_AOUTHDR_OMAGIC; | |
3838 | #endif | |
3839 | ||
17505c5c NC |
3840 | #if defined(SH) && defined(COFF_WITH_PE) |
3841 | #define __A_MAGIC_SET__ | |
3842 | internal_a.magic = SH_PE_MAGIC; | |
3843 | #endif | |
3844 | ||
3845 | #if defined(MIPS) && defined(COFF_WITH_PE) | |
3846 | #define __A_MAGIC_SET__ | |
3847 | internal_a.magic = MIPS_PE_MAGIC; | |
3848 | #endif | |
3849 | ||
3b16e843 NC |
3850 | #ifdef OR32 |
3851 | #define __A_MAGIC_SET__ | |
3852 | internal_a.magic = NMAGIC; /* Assume separate i/d. */ | |
3853 | #endif | |
3854 | ||
252b5132 RH |
3855 | #ifndef __A_MAGIC_SET__ |
3856 | #include "Your aouthdr magic number is not being set!" | |
3857 | #else | |
3858 | #undef __A_MAGIC_SET__ | |
3859 | #endif | |
3860 | } | |
3861 | ||
3862 | /* FIXME: Does anybody ever set this to another value? */ | |
3863 | internal_a.vstamp = 0; | |
3864 | ||
3865 | /* Now should write relocs, strings, syms */ | |
3866 | obj_sym_filepos (abfd) = sym_base; | |
3867 | ||
3868 | if (bfd_get_symcount (abfd) != 0) | |
3869 | { | |
3870 | int firstundef; | |
3871 | #if 0 | |
3872 | if (!coff_add_missing_symbols (abfd)) | |
3873 | return false; | |
3874 | #endif | |
3875 | if (!coff_renumber_symbols (abfd, &firstundef)) | |
3876 | return false; | |
3877 | coff_mangle_symbols (abfd); | |
3878 | if (! coff_write_symbols (abfd)) | |
3879 | return false; | |
3880 | if (! coff_write_linenumbers (abfd)) | |
3881 | return false; | |
3882 | if (! coff_write_relocs (abfd, firstundef)) | |
3883 | return false; | |
3884 | } | |
3885 | #ifdef COFF_LONG_SECTION_NAMES | |
d71f672e | 3886 | else if (long_section_names && ! obj_coff_strings_written (abfd)) |
252b5132 RH |
3887 | { |
3888 | /* If we have long section names we have to write out the string | |
3889 | table even if there are no symbols. */ | |
3890 | if (! coff_write_symbols (abfd)) | |
3891 | return false; | |
3892 | } | |
3893 | #endif | |
3894 | #ifdef COFF_IMAGE_WITH_PE | |
3895 | #ifdef PPC_PE | |
3896 | else if ((abfd->flags & EXEC_P) != 0) | |
3897 | { | |
3898 | bfd_byte b; | |
3899 | ||
3900 | /* PowerPC PE appears to require that all executable files be | |
3901 | rounded up to the page size. */ | |
3902 | b = 0; | |
3903 | if (bfd_seek (abfd, | |
dc810e39 | 3904 | (file_ptr) BFD_ALIGN (sym_base, COFF_PAGE_SIZE) - 1, |
252b5132 | 3905 | SEEK_SET) != 0 |
dc810e39 | 3906 | || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1) |
252b5132 RH |
3907 | return false; |
3908 | } | |
3909 | #endif | |
3910 | #endif | |
3911 | ||
3912 | /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF | |
3913 | backend linker, and obj_raw_syment_count is not valid until after | |
3914 | coff_write_symbols is called. */ | |
3915 | if (obj_raw_syment_count (abfd) != 0) | |
3916 | { | |
3917 | internal_f.f_symptr = sym_base; | |
3918 | #ifdef RS6000COFF_C | |
3919 | /* AIX appears to require that F_RELFLG not be set if there are | |
3920 | local symbols but no relocations. */ | |
3921 | internal_f.f_flags &=~ F_RELFLG; | |
3922 | #endif | |
3923 | } | |
3924 | else | |
3925 | { | |
3926 | if (long_section_names) | |
3927 | internal_f.f_symptr = sym_base; | |
3928 | else | |
3929 | internal_f.f_symptr = 0; | |
3930 | internal_f.f_flags |= F_LSYMS; | |
3931 | } | |
3932 | ||
3933 | if (text_sec) | |
3934 | { | |
3935 | internal_a.tsize = bfd_get_section_size_before_reloc (text_sec); | |
3936 | internal_a.text_start = internal_a.tsize ? text_sec->vma : 0; | |
3937 | } | |
3938 | if (data_sec) | |
3939 | { | |
3940 | internal_a.dsize = bfd_get_section_size_before_reloc (data_sec); | |
3941 | internal_a.data_start = internal_a.dsize ? data_sec->vma : 0; | |
3942 | } | |
3943 | if (bss_sec) | |
3944 | { | |
3945 | internal_a.bsize = bfd_get_section_size_before_reloc (bss_sec); | |
3946 | if (internal_a.bsize && bss_sec->vma < internal_a.data_start) | |
3947 | internal_a.data_start = bss_sec->vma; | |
3948 | } | |
3949 | ||
3950 | internal_a.entry = bfd_get_start_address (abfd); | |
3951 | internal_f.f_nsyms = obj_raw_syment_count (abfd); | |
3952 | ||
3953 | #ifdef RS6000COFF_C | |
3954 | if (xcoff_data (abfd)->full_aouthdr) | |
3955 | { | |
3956 | bfd_vma toc; | |
3957 | asection *loader_sec; | |
3958 | ||
3959 | internal_a.vstamp = 1; | |
3960 | ||
3961 | internal_a.o_snentry = xcoff_data (abfd)->snentry; | |
3962 | if (internal_a.o_snentry == 0) | |
3963 | internal_a.entry = (bfd_vma) -1; | |
3964 | ||
3965 | if (text_sec != NULL) | |
3966 | { | |
3967 | internal_a.o_sntext = text_sec->target_index; | |
3968 | internal_a.o_algntext = bfd_get_section_alignment (abfd, text_sec); | |
3969 | } | |
3970 | else | |
3971 | { | |
3972 | internal_a.o_sntext = 0; | |
3973 | internal_a.o_algntext = 0; | |
3974 | } | |
3975 | if (data_sec != NULL) | |
3976 | { | |
3977 | internal_a.o_sndata = data_sec->target_index; | |
3978 | internal_a.o_algndata = bfd_get_section_alignment (abfd, data_sec); | |
3979 | } | |
3980 | else | |
3981 | { | |
3982 | internal_a.o_sndata = 0; | |
3983 | internal_a.o_algndata = 0; | |
3984 | } | |
3985 | loader_sec = bfd_get_section_by_name (abfd, ".loader"); | |
3986 | if (loader_sec != NULL) | |
3987 | internal_a.o_snloader = loader_sec->target_index; | |
3988 | else | |
3989 | internal_a.o_snloader = 0; | |
3990 | if (bss_sec != NULL) | |
3991 | internal_a.o_snbss = bss_sec->target_index; | |
3992 | else | |
3993 | internal_a.o_snbss = 0; | |
3994 | ||
3995 | toc = xcoff_data (abfd)->toc; | |
3996 | internal_a.o_toc = toc; | |
3997 | internal_a.o_sntoc = xcoff_data (abfd)->sntoc; | |
3998 | ||
3999 | internal_a.o_modtype = xcoff_data (abfd)->modtype; | |
4000 | if (xcoff_data (abfd)->cputype != -1) | |
4001 | internal_a.o_cputype = xcoff_data (abfd)->cputype; | |
4002 | else | |
4003 | { | |
4004 | switch (bfd_get_arch (abfd)) | |
4005 | { | |
4006 | case bfd_arch_rs6000: | |
4007 | internal_a.o_cputype = 4; | |
4008 | break; | |
4009 | case bfd_arch_powerpc: | |
4010 | if (bfd_get_mach (abfd) == 0) | |
4011 | internal_a.o_cputype = 3; | |
4012 | else | |
4013 | internal_a.o_cputype = 1; | |
4014 | break; | |
4015 | default: | |
4016 | abort (); | |
4017 | } | |
4018 | } | |
4019 | internal_a.o_maxstack = xcoff_data (abfd)->maxstack; | |
4020 | internal_a.o_maxdata = xcoff_data (abfd)->maxdata; | |
4021 | } | |
4022 | #endif | |
4023 | ||
4024 | /* now write them */ | |
4025 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) | |
4026 | return false; | |
e60b52c6 | 4027 | |
252b5132 | 4028 | { |
b5f303f0 | 4029 | char * buff; |
dc810e39 | 4030 | bfd_size_type amount = bfd_coff_filhsz (abfd); |
e60b52c6 | 4031 | |
dc810e39 | 4032 | buff = bfd_malloc (amount); |
e60b52c6 | 4033 | if (buff == NULL) |
b5f303f0 | 4034 | return false; |
e60b52c6 | 4035 | |
dc810e39 AM |
4036 | bfd_coff_swap_filehdr_out (abfd, (PTR) &internal_f, (PTR) buff); |
4037 | amount = bfd_bwrite ((PTR) buff, amount, abfd); | |
e60b52c6 | 4038 | |
2fca4467 | 4039 | free (buff); |
e60b52c6 | 4040 | |
b5f303f0 | 4041 | if (amount != bfd_coff_filhsz (abfd)) |
252b5132 RH |
4042 | return false; |
4043 | } | |
e60b52c6 | 4044 | |
252b5132 RH |
4045 | if (abfd->flags & EXEC_P) |
4046 | { | |
e60b52c6 KH |
4047 | /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR. |
4048 | include/coff/pe.h sets AOUTSZ == sizeof (PEAOUTHDR)) */ | |
b5f303f0 | 4049 | char * buff; |
dc810e39 | 4050 | bfd_size_type amount = bfd_coff_aoutsz (abfd); |
b5f303f0 | 4051 | |
dc810e39 | 4052 | buff = bfd_malloc (amount); |
e60b52c6 | 4053 | if (buff == NULL) |
b5f303f0 | 4054 | return false; |
e60b52c6 | 4055 | |
dc810e39 AM |
4056 | coff_swap_aouthdr_out (abfd, (PTR) &internal_a, (PTR) buff); |
4057 | amount = bfd_bwrite ((PTR) buff, amount, abfd); | |
e60b52c6 | 4058 | |
2fca4467 | 4059 | free (buff); |
e60b52c6 | 4060 | |
b5f303f0 | 4061 | if (amount != bfd_coff_aoutsz (abfd)) |
252b5132 RH |
4062 | return false; |
4063 | } | |
4064 | #ifdef RS6000COFF_C | |
4065 | else | |
4066 | { | |
4067 | AOUTHDR buff; | |
4068 | size_t size; | |
4069 | ||
4070 | /* XCOFF seems to always write at least a small a.out header. */ | |
4071 | coff_swap_aouthdr_out (abfd, (PTR) &internal_a, (PTR) &buff); | |
4072 | if (xcoff_data (abfd)->full_aouthdr) | |
6b3b007b | 4073 | size = bfd_coff_aoutsz (abfd); |
252b5132 RH |
4074 | else |
4075 | size = SMALL_AOUTSZ; | |
dc810e39 | 4076 | if (bfd_bwrite ((PTR) &buff, (bfd_size_type) size, abfd) != size) |
252b5132 RH |
4077 | return false; |
4078 | } | |
4079 | #endif | |
4080 | ||
4081 | return true; | |
4082 | } | |
4083 | ||
4084 | static boolean | |
4085 | coff_set_section_contents (abfd, section, location, offset, count) | |
4086 | bfd * abfd; | |
4087 | sec_ptr section; | |
4088 | PTR location; | |
4089 | file_ptr offset; | |
4090 | bfd_size_type count; | |
4091 | { | |
4092 | if (abfd->output_has_begun == false) /* set by bfd.c handler */ | |
4093 | { | |
4094 | if (! coff_compute_section_file_positions (abfd)) | |
4095 | return false; | |
4096 | } | |
4097 | ||
4098 | #if defined(_LIB) && !defined(TARG_AUX) | |
4099 | ||
4100 | /* The physical address field of a .lib section is used to hold the | |
4101 | number of shared libraries in the section. This code counts the | |
4102 | number of sections being written, and increments the lma field | |
4103 | with the number. | |
4104 | ||
4105 | I have found no documentation on the contents of this section. | |
4106 | Experimentation indicates that the section contains zero or more | |
4107 | records, each of which has the following structure: | |
4108 | ||
4109 | - a (four byte) word holding the length of this record, in words, | |
4110 | - a word that always seems to be set to "2", | |
4111 | - the path to a shared library, null-terminated and then padded | |
4112 | to a whole word boundary. | |
4113 | ||
4114 | bfd_assert calls have been added to alert if an attempt is made | |
4115 | to write a section which doesn't follow these assumptions. The | |
4116 | code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe | |
4117 | <robertl@arnet.com> (Thanks!). | |
e60b52c6 | 4118 | |
252b5132 RH |
4119 | Gvran Uddeborg <gvran@uddeborg.pp.se> */ |
4120 | ||
4121 | if (strcmp (section->name, _LIB) == 0) | |
4122 | { | |
4123 | bfd_byte *rec, *recend; | |
4124 | ||
4125 | rec = (bfd_byte *) location; | |
4126 | recend = rec + count; | |
4127 | while (rec < recend) | |
4128 | { | |
4129 | ++section->lma; | |
4130 | rec += bfd_get_32 (abfd, rec) * 4; | |
4131 | } | |
4132 | ||
4133 | BFD_ASSERT (rec == recend); | |
4134 | } | |
4135 | ||
4136 | #endif | |
4137 | ||
4138 | /* Don't write out bss sections - one way to do this is to | |
e60b52c6 | 4139 | see if the filepos has not been set. */ |
252b5132 RH |
4140 | if (section->filepos == 0) |
4141 | return true; | |
4142 | ||
dc810e39 | 4143 | if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0) |
252b5132 RH |
4144 | return false; |
4145 | ||
dc810e39 AM |
4146 | if (count == 0) |
4147 | return true; | |
4148 | ||
4149 | return bfd_bwrite (location, count, abfd) == count; | |
252b5132 RH |
4150 | } |
4151 | #if 0 | |
4152 | static boolean | |
4153 | coff_close_and_cleanup (abfd) | |
4154 | bfd *abfd; | |
4155 | { | |
4156 | if (!bfd_read_p (abfd)) | |
4157 | switch (abfd->format) | |
4158 | { | |
4159 | case bfd_archive: | |
4160 | if (!_bfd_write_archive_contents (abfd)) | |
4161 | return false; | |
4162 | break; | |
4163 | case bfd_object: | |
4164 | if (!coff_write_object_contents (abfd)) | |
4165 | return false; | |
4166 | break; | |
4167 | default: | |
4168 | bfd_set_error (bfd_error_invalid_operation); | |
4169 | return false; | |
4170 | } | |
4171 | ||
4172 | /* We depend on bfd_close to free all the memory on the objalloc. */ | |
4173 | return true; | |
4174 | } | |
4175 | ||
4176 | #endif | |
4177 | ||
4178 | static PTR | |
dc810e39 | 4179 | buy_and_read (abfd, where, size) |
252b5132 RH |
4180 | bfd *abfd; |
4181 | file_ptr where; | |
dc810e39 | 4182 | bfd_size_type size; |
252b5132 RH |
4183 | { |
4184 | PTR area = (PTR) bfd_alloc (abfd, size); | |
4185 | if (!area) | |
4186 | return (NULL); | |
dc810e39 AM |
4187 | if (bfd_seek (abfd, where, SEEK_SET) != 0 |
4188 | || bfd_bread (area, size, abfd) != size) | |
252b5132 RH |
4189 | return (NULL); |
4190 | return (area); | |
4191 | } /* buy_and_read() */ | |
4192 | ||
4193 | /* | |
4194 | SUBSUBSECTION | |
4195 | Reading linenumbers | |
4196 | ||
4197 | Creating the linenumber table is done by reading in the entire | |
4198 | coff linenumber table, and creating another table for internal use. | |
4199 | ||
4200 | A coff linenumber table is structured so that each function | |
4201 | is marked as having a line number of 0. Each line within the | |
4202 | function is an offset from the first line in the function. The | |
4203 | base of the line number information for the table is stored in | |
4204 | the symbol associated with the function. | |
4205 | ||
00692651 ILT |
4206 | Note: The PE format uses line number 0 for a flag indicating a |
4207 | new source file. | |
4208 | ||
252b5132 RH |
4209 | The information is copied from the external to the internal |
4210 | table, and each symbol which marks a function is marked by | |
4211 | pointing its... | |
4212 | ||
4213 | How does this work ? | |
4214 | ||
4215 | */ | |
4216 | ||
4217 | static boolean | |
4218 | coff_slurp_line_table (abfd, asect) | |
4219 | bfd *abfd; | |
4220 | asection *asect; | |
4221 | { | |
4222 | LINENO *native_lineno; | |
4223 | alent *lineno_cache; | |
dc810e39 | 4224 | bfd_size_type amt; |
252b5132 RH |
4225 | |
4226 | BFD_ASSERT (asect->lineno == (alent *) NULL); | |
4227 | ||
dc810e39 AM |
4228 | amt = (bfd_size_type) bfd_coff_linesz (abfd) * asect->lineno_count; |
4229 | native_lineno = (LINENO *) buy_and_read (abfd, asect->line_filepos, amt); | |
4230 | amt = ((bfd_size_type) asect->lineno_count + 1) * sizeof (alent); | |
4231 | lineno_cache = (alent *) bfd_alloc (abfd, amt); | |
252b5132 RH |
4232 | if (lineno_cache == NULL) |
4233 | return false; | |
4234 | else | |
4235 | { | |
4236 | unsigned int counter = 0; | |
4237 | alent *cache_ptr = lineno_cache; | |
4238 | LINENO *src = native_lineno; | |
4239 | ||
4240 | while (counter < asect->lineno_count) | |
4241 | { | |
4242 | struct internal_lineno dst; | |
7f6d05e8 | 4243 | bfd_coff_swap_lineno_in (abfd, src, &dst); |
252b5132 RH |
4244 | cache_ptr->line_number = dst.l_lnno; |
4245 | ||
4246 | if (cache_ptr->line_number == 0) | |
4247 | { | |
4248 | boolean warned; | |
beb1bf64 | 4249 | bfd_signed_vma symndx; |
252b5132 RH |
4250 | coff_symbol_type *sym; |
4251 | ||
4252 | warned = false; | |
4253 | symndx = dst.l_addr.l_symndx; | |
4254 | if (symndx < 0 | |
beb1bf64 | 4255 | || (bfd_vma) symndx >= obj_raw_syment_count (abfd)) |
252b5132 RH |
4256 | { |
4257 | (*_bfd_error_handler) | |
4258 | (_("%s: warning: illegal symbol index %ld in line numbers"), | |
8f615d07 | 4259 | bfd_archive_filename (abfd), dst.l_addr.l_symndx); |
252b5132 RH |
4260 | symndx = 0; |
4261 | warned = true; | |
4262 | } | |
4263 | /* FIXME: We should not be casting between ints and | |
4264 | pointers like this. */ | |
4265 | sym = ((coff_symbol_type *) | |
4266 | ((symndx + obj_raw_syments (abfd)) | |
4267 | ->u.syment._n._n_n._n_zeroes)); | |
4268 | cache_ptr->u.sym = (asymbol *) sym; | |
4269 | if (sym->lineno != NULL && ! warned) | |
4270 | { | |
4271 | (*_bfd_error_handler) | |
4272 | (_("%s: warning: duplicate line number information for `%s'"), | |
8f615d07 | 4273 | bfd_archive_filename (abfd), |
252b5132 RH |
4274 | bfd_asymbol_name (&sym->symbol)); |
4275 | } | |
4276 | sym->lineno = cache_ptr; | |
4277 | } | |
4278 | else | |
4279 | { | |
4280 | cache_ptr->u.offset = dst.l_addr.l_paddr | |
4281 | - bfd_section_vma (abfd, asect); | |
4282 | } /* If no linenumber expect a symbol index */ | |
4283 | ||
4284 | cache_ptr++; | |
4285 | src++; | |
4286 | counter++; | |
4287 | } | |
4288 | cache_ptr->line_number = 0; | |
4289 | ||
4290 | } | |
4291 | asect->lineno = lineno_cache; | |
e60b52c6 | 4292 | /* FIXME, free native_lineno here, or use alloca or something. */ |
252b5132 RH |
4293 | return true; |
4294 | } | |
4295 | ||
00692651 ILT |
4296 | /* Slurp in the symbol table, converting it to generic form. Note |
4297 | that if coff_relocate_section is defined, the linker will read | |
4298 | symbols via coff_link_add_symbols, rather than via this routine. */ | |
4299 | ||
252b5132 RH |
4300 | static boolean |
4301 | coff_slurp_symbol_table (abfd) | |
4302 | bfd * abfd; | |
4303 | { | |
4304 | combined_entry_type *native_symbols; | |
4305 | coff_symbol_type *cached_area; | |
4306 | unsigned int *table_ptr; | |
dc810e39 | 4307 | bfd_size_type amt; |
252b5132 RH |
4308 | |
4309 | unsigned int number_of_symbols = 0; | |
4310 | ||
4311 | if (obj_symbols (abfd)) | |
4312 | return true; | |
4313 | ||
4314 | /* Read in the symbol table */ | |
4315 | if ((native_symbols = coff_get_normalized_symtab (abfd)) == NULL) | |
4316 | { | |
4317 | return (false); | |
4318 | } /* on error */ | |
4319 | ||
4320 | /* Allocate enough room for all the symbols in cached form */ | |
dc810e39 AM |
4321 | amt = obj_raw_syment_count (abfd); |
4322 | amt *= sizeof (coff_symbol_type); | |
4323 | cached_area = (coff_symbol_type *) bfd_alloc (abfd, amt); | |
252b5132 RH |
4324 | if (cached_area == NULL) |
4325 | return false; | |
dc810e39 AM |
4326 | |
4327 | amt = obj_raw_syment_count (abfd); | |
4328 | amt *= sizeof (unsigned int); | |
4329 | table_ptr = (unsigned int *) bfd_alloc (abfd, amt); | |
252b5132 RH |
4330 | |
4331 | if (table_ptr == NULL) | |
4332 | return false; | |
4333 | else | |
4334 | { | |
4335 | coff_symbol_type *dst = cached_area; | |
4336 | unsigned int last_native_index = obj_raw_syment_count (abfd); | |
4337 | unsigned int this_index = 0; | |
4338 | while (this_index < last_native_index) | |
4339 | { | |
4340 | combined_entry_type *src = native_symbols + this_index; | |
4341 | table_ptr[this_index] = number_of_symbols; | |
4342 | dst->symbol.the_bfd = abfd; | |
4343 | ||
4344 | dst->symbol.name = (char *) (src->u.syment._n._n_n._n_offset); | |
4345 | /* We use the native name field to point to the cached field. */ | |
4346 | src->u.syment._n._n_n._n_zeroes = (long) dst; | |
4347 | dst->symbol.section = coff_section_from_bfd_index (abfd, | |
4348 | src->u.syment.n_scnum); | |
4349 | dst->symbol.flags = 0; | |
4350 | dst->done_lineno = false; | |
4351 | ||
4352 | switch (src->u.syment.n_sclass) | |
4353 | { | |
4354 | #ifdef I960 | |
4355 | case C_LEAFEXT: | |
4356 | #if 0 | |
4357 | dst->symbol.value = src->u.syment.n_value - dst->symbol.section->vma; | |
4358 | dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL; | |
4359 | dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION; | |
4360 | #endif | |
4361 | /* Fall through to next case */ | |
4362 | ||
4363 | #endif | |
4364 | ||
4365 | case C_EXT: | |
4366 | case C_WEAKEXT: | |
4367 | #if defined ARM | |
4368 | case C_THUMBEXT: | |
4369 | case C_THUMBEXTFUNC: | |
4370 | #endif | |
4371 | #ifdef RS6000COFF_C | |
4372 | case C_HIDEXT: | |
4373 | #endif | |
4374 | #ifdef C_SYSTEM | |
4375 | case C_SYSTEM: /* System Wide variable */ | |
4376 | #endif | |
4377 | #ifdef COFF_WITH_PE | |
5d54c628 | 4378 | /* In PE, 0x68 (104) denotes a section symbol */ |
252b5132 | 4379 | case C_SECTION: |
5d54c628 | 4380 | /* In PE, 0x69 (105) denotes a weak external symbol. */ |
252b5132 RH |
4381 | case C_NT_WEAK: |
4382 | #endif | |
5d54c628 | 4383 | switch (coff_classify_symbol (abfd, &src->u.syment)) |
252b5132 | 4384 | { |
5d54c628 | 4385 | case COFF_SYMBOL_GLOBAL: |
252b5132 | 4386 | dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL; |
252b5132 RH |
4387 | #if defined COFF_WITH_PE |
4388 | /* PE sets the symbol to a value relative to the | |
4389 | start of the section. */ | |
4390 | dst->symbol.value = src->u.syment.n_value; | |
4391 | #else | |
4392 | dst->symbol.value = (src->u.syment.n_value | |
4393 | - dst->symbol.section->vma); | |
4394 | #endif | |
252b5132 RH |
4395 | if (ISFCN ((src->u.syment.n_type))) |
4396 | { | |
4397 | /* A function ext does not go at the end of a | |
4398 | file. */ | |
4399 | dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION; | |
4400 | } | |
5d54c628 ILT |
4401 | break; |
4402 | ||
4403 | case COFF_SYMBOL_COMMON: | |
4404 | dst->symbol.section = bfd_com_section_ptr; | |
4405 | dst->symbol.value = src->u.syment.n_value; | |
4406 | break; | |
4407 | ||
4408 | case COFF_SYMBOL_UNDEFINED: | |
4409 | dst->symbol.section = bfd_und_section_ptr; | |
4410 | dst->symbol.value = 0; | |
e60b52c6 | 4411 | break; |
5d54c628 ILT |
4412 | |
4413 | case COFF_SYMBOL_PE_SECTION: | |
4414 | dst->symbol.flags |= BSF_EXPORT | BSF_SECTION_SYM; | |
4415 | dst->symbol.value = 0; | |
4416 | break; | |
4417 | ||
4418 | case COFF_SYMBOL_LOCAL: | |
4419 | dst->symbol.flags = BSF_LOCAL; | |
4420 | #if defined COFF_WITH_PE | |
4421 | /* PE sets the symbol to a value relative to the | |
4422 | start of the section. */ | |
4423 | dst->symbol.value = src->u.syment.n_value; | |
4424 | #else | |
4425 | dst->symbol.value = (src->u.syment.n_value | |
4426 | - dst->symbol.section->vma); | |
4427 | #endif | |
4428 | if (ISFCN ((src->u.syment.n_type))) | |
4429 | dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION; | |
4430 | break; | |
252b5132 RH |
4431 | } |
4432 | ||
4433 | #ifdef RS6000COFF_C | |
252b5132 RH |
4434 | /* A symbol with a csect entry should not go at the end. */ |
4435 | if (src->u.syment.n_numaux > 0) | |
4436 | dst->symbol.flags |= BSF_NOT_AT_END; | |
4437 | #endif | |
4438 | ||
4439 | #ifdef COFF_WITH_PE | |
4440 | if (src->u.syment.n_sclass == C_NT_WEAK) | |
a181be0a NC |
4441 | dst->symbol.flags |= BSF_WEAK; |
4442 | ||
ec0ef80e DD |
4443 | if (src->u.syment.n_sclass == C_SECTION |
4444 | && src->u.syment.n_scnum > 0) | |
eb1e0e80 | 4445 | dst->symbol.flags = BSF_LOCAL; |
252b5132 | 4446 | #endif |
252b5132 | 4447 | if (src->u.syment.n_sclass == C_WEAKEXT) |
a181be0a | 4448 | dst->symbol.flags |= BSF_WEAK; |
252b5132 RH |
4449 | |
4450 | break; | |
4451 | ||
4452 | case C_STAT: /* static */ | |
4453 | #ifdef I960 | |
4454 | case C_LEAFSTAT: /* static leaf procedure */ | |
4455 | #endif | |
e60b52c6 | 4456 | #if defined ARM |
252b5132 RH |
4457 | case C_THUMBSTAT: /* Thumb static */ |
4458 | case C_THUMBLABEL: /* Thumb label */ | |
4459 | case C_THUMBSTATFUNC:/* Thumb static function */ | |
4460 | #endif | |
4461 | case C_LABEL: /* label */ | |
00692651 | 4462 | if (src->u.syment.n_scnum == N_DEBUG) |
252b5132 RH |
4463 | dst->symbol.flags = BSF_DEBUGGING; |
4464 | else | |
4465 | dst->symbol.flags = BSF_LOCAL; | |
4466 | ||
4467 | /* Base the value as an index from the base of the | |
4468 | section, if there is one. */ | |
4469 | if (dst->symbol.section) | |
4470 | { | |
4471 | #if defined COFF_WITH_PE | |
4472 | /* PE sets the symbol to a value relative to the | |
4473 | start of the section. */ | |
4474 | dst->symbol.value = src->u.syment.n_value; | |
4475 | #else | |
4476 | dst->symbol.value = (src->u.syment.n_value | |
4477 | - dst->symbol.section->vma); | |
4478 | #endif | |
4479 | } | |
4480 | else | |
4481 | dst->symbol.value = src->u.syment.n_value; | |
4482 | break; | |
4483 | ||
4484 | case C_MOS: /* member of structure */ | |
4485 | case C_EOS: /* end of structure */ | |
4486 | #ifdef NOTDEF /* C_AUTOARG has the same value */ | |
4487 | #ifdef C_GLBLREG | |
4488 | case C_GLBLREG: /* A29k-specific storage class */ | |
4489 | #endif | |
4490 | #endif | |
4491 | case C_REGPARM: /* register parameter */ | |
4492 | case C_REG: /* register variable */ | |
81635ce4 TW |
4493 | /* C_AUTOARG conflictes with TI COFF C_UEXT */ |
4494 | #if !defined (TIC80COFF) && !defined (TICOFF) | |
252b5132 RH |
4495 | #ifdef C_AUTOARG |
4496 | case C_AUTOARG: /* 960-specific storage class */ | |
4497 | #endif | |
4498 | #endif | |
4499 | case C_TPDEF: /* type definition */ | |
4500 | case C_ARG: | |
4501 | case C_AUTO: /* automatic variable */ | |
4502 | case C_FIELD: /* bit field */ | |
4503 | case C_ENTAG: /* enumeration tag */ | |
4504 | case C_MOE: /* member of enumeration */ | |
4505 | case C_MOU: /* member of union */ | |
4506 | case C_UNTAG: /* union tag */ | |
4507 | dst->symbol.flags = BSF_DEBUGGING; | |
4508 | dst->symbol.value = (src->u.syment.n_value); | |
4509 | break; | |
4510 | ||
4511 | case C_FILE: /* file name */ | |
4512 | case C_STRTAG: /* structure tag */ | |
4513 | #ifdef RS6000COFF_C | |
4514 | case C_GSYM: | |
4515 | case C_LSYM: | |
4516 | case C_PSYM: | |
4517 | case C_RSYM: | |
4518 | case C_RPSYM: | |
4519 | case C_STSYM: | |
4520 | case C_BCOMM: | |
4521 | case C_ECOMM: | |
4522 | case C_DECL: | |
4523 | case C_ENTRY: | |
4524 | case C_FUN: | |
4525 | case C_ESTAT: | |
4526 | #endif | |
4527 | dst->symbol.flags = BSF_DEBUGGING; | |
4528 | dst->symbol.value = (src->u.syment.n_value); | |
4529 | break; | |
4530 | ||
4531 | #ifdef RS6000COFF_C | |
4532 | case C_BINCL: /* beginning of include file */ | |
4533 | case C_EINCL: /* ending of include file */ | |
4534 | /* The value is actually a pointer into the line numbers | |
4535 | of the file. We locate the line number entry, and | |
4536 | set the section to the section which contains it, and | |
4537 | the value to the index in that section. */ | |
4538 | { | |
4539 | asection *sec; | |
4540 | ||
4541 | dst->symbol.flags = BSF_DEBUGGING; | |
4542 | for (sec = abfd->sections; sec != NULL; sec = sec->next) | |
4543 | if (sec->line_filepos <= (file_ptr) src->u.syment.n_value | |
4544 | && ((file_ptr) (sec->line_filepos | |
6b3b007b | 4545 | + sec->lineno_count * bfd_coff_linesz (abfd)) |
252b5132 RH |
4546 | > (file_ptr) src->u.syment.n_value)) |
4547 | break; | |
4548 | if (sec == NULL) | |
4549 | dst->symbol.value = 0; | |
4550 | else | |
4551 | { | |
4552 | dst->symbol.section = sec; | |
4553 | dst->symbol.value = ((src->u.syment.n_value | |
4554 | - sec->line_filepos) | |
6b3b007b | 4555 | / bfd_coff_linesz (abfd)); |
252b5132 RH |
4556 | src->fix_line = 1; |
4557 | } | |
4558 | } | |
4559 | break; | |
4560 | ||
4561 | case C_BSTAT: | |
4562 | dst->symbol.flags = BSF_DEBUGGING; | |
4563 | ||
4564 | /* The value is actually a symbol index. Save a pointer | |
4565 | to the symbol instead of the index. FIXME: This | |
4566 | should use a union. */ | |
4567 | src->u.syment.n_value = | |
4568 | (long) (native_symbols + src->u.syment.n_value); | |
4569 | dst->symbol.value = src->u.syment.n_value; | |
4570 | src->fix_value = 1; | |
4571 | break; | |
4572 | #endif | |
4573 | ||
4574 | case C_BLOCK: /* ".bb" or ".eb" */ | |
60bcf0fa | 4575 | case C_FCN: /* ".bf" or ".ef" (or PE ".lf") */ |
252b5132 | 4576 | case C_EFCN: /* physical end of function */ |
252b5132 RH |
4577 | #if defined COFF_WITH_PE |
4578 | /* PE sets the symbol to a value relative to the start | |
4579 | of the section. */ | |
4580 | dst->symbol.value = src->u.syment.n_value; | |
d510f9a6 ILT |
4581 | if (strcmp (dst->symbol.name, ".bf") != 0) |
4582 | { | |
4583 | /* PE uses funny values for .ef and .lf; don't | |
4584 | relocate them. */ | |
4585 | dst->symbol.flags = BSF_DEBUGGING; | |
4586 | } | |
4587 | else | |
4588 | dst->symbol.flags = BSF_DEBUGGING | BSF_DEBUGGING_RELOC; | |
252b5132 RH |
4589 | #else |
4590 | /* Base the value as an index from the base of the | |
4591 | section. */ | |
d510f9a6 | 4592 | dst->symbol.flags = BSF_LOCAL; |
252b5132 RH |
4593 | dst->symbol.value = (src->u.syment.n_value |
4594 | - dst->symbol.section->vma); | |
4595 | #endif | |
4596 | break; | |
4597 | ||
34cbe64e TW |
4598 | case C_STATLAB: /* Static load time label */ |
4599 | dst->symbol.value = src->u.syment.n_value; | |
4600 | dst->symbol.flags = BSF_GLOBAL; | |
4601 | break; | |
4602 | ||
252b5132 | 4603 | case C_NULL: |
00692651 ILT |
4604 | /* PE DLLs sometimes have zeroed out symbols for some |
4605 | reason. Just ignore them without a warning. */ | |
4606 | if (src->u.syment.n_type == 0 | |
4607 | && src->u.syment.n_value == 0 | |
4608 | && src->u.syment.n_scnum == 0) | |
4609 | break; | |
4610 | /* Fall through. */ | |
252b5132 RH |
4611 | case C_EXTDEF: /* external definition */ |
4612 | case C_ULABEL: /* undefined label */ | |
4613 | case C_USTATIC: /* undefined static */ | |
4614 | #ifndef COFF_WITH_PE | |
4615 | /* C_LINE in regular coff is 0x68. NT has taken over this storage | |
4616 | class to represent a section symbol */ | |
4617 | case C_LINE: /* line # reformatted as symbol table entry */ | |
4618 | /* NT uses 0x67 for a weak symbol, not C_ALIAS. */ | |
4619 | case C_ALIAS: /* duplicate tag */ | |
4620 | #endif | |
e60b52c6 | 4621 | /* New storage classes for TI COFF */ |
81635ce4 | 4622 | #if defined(TIC80COFF) || defined(TICOFF) |
252b5132 RH |
4623 | case C_UEXT: /* Tentative external definition */ |
4624 | #endif | |
252b5132 RH |
4625 | case C_EXTLAB: /* External load time label */ |
4626 | case C_HIDDEN: /* ext symbol in dmert public lib */ | |
4627 | default: | |
4628 | (*_bfd_error_handler) | |
4629 | (_("%s: Unrecognized storage class %d for %s symbol `%s'"), | |
8f615d07 | 4630 | bfd_archive_filename (abfd), src->u.syment.n_sclass, |
252b5132 RH |
4631 | dst->symbol.section->name, dst->symbol.name); |
4632 | dst->symbol.flags = BSF_DEBUGGING; | |
4633 | dst->symbol.value = (src->u.syment.n_value); | |
4634 | break; | |
4635 | } | |
4636 | ||
4637 | /* BFD_ASSERT(dst->symbol.flags != 0);*/ | |
4638 | ||
4639 | dst->native = src; | |
4640 | ||
4641 | dst->symbol.udata.i = 0; | |
4642 | dst->lineno = (alent *) NULL; | |
4643 | this_index += (src->u.syment.n_numaux) + 1; | |
4644 | dst++; | |
4645 | number_of_symbols++; | |
4646 | } /* walk the native symtab */ | |
4647 | } /* bfdize the native symtab */ | |
4648 | ||
4649 | obj_symbols (abfd) = cached_area; | |
4650 | obj_raw_syments (abfd) = native_symbols; | |
4651 | ||
4652 | bfd_get_symcount (abfd) = number_of_symbols; | |
4653 | obj_convert (abfd) = table_ptr; | |
4654 | /* Slurp the line tables for each section too */ | |
4655 | { | |
4656 | asection *p; | |
4657 | p = abfd->sections; | |
4658 | while (p) | |
4659 | { | |
4660 | coff_slurp_line_table (abfd, p); | |
4661 | p = p->next; | |
4662 | } | |
4663 | } | |
4664 | return true; | |
4665 | } /* coff_slurp_symbol_table() */ | |
4666 | ||
5d54c628 ILT |
4667 | /* Classify a COFF symbol. A couple of targets have globally visible |
4668 | symbols which are not class C_EXT, and this handles those. It also | |
4669 | recognizes some special PE cases. */ | |
252b5132 | 4670 | |
5d54c628 ILT |
4671 | static enum coff_symbol_classification |
4672 | coff_classify_symbol (abfd, syment) | |
4673 | bfd *abfd; | |
4674 | struct internal_syment *syment; | |
4675 | { | |
4676 | /* FIXME: This partially duplicates the switch in | |
4677 | coff_slurp_symbol_table. */ | |
4678 | switch (syment->n_sclass) | |
4679 | { | |
4680 | case C_EXT: | |
4681 | case C_WEAKEXT: | |
252b5132 | 4682 | #ifdef I960 |
5d54c628 | 4683 | case C_LEAFEXT: |
252b5132 | 4684 | #endif |
5d54c628 ILT |
4685 | #ifdef ARM |
4686 | case C_THUMBEXT: | |
4687 | case C_THUMBEXTFUNC: | |
252b5132 | 4688 | #endif |
5d54c628 ILT |
4689 | #ifdef C_SYSTEM |
4690 | case C_SYSTEM: | |
252b5132 | 4691 | #endif |
5d54c628 ILT |
4692 | #ifdef COFF_WITH_PE |
4693 | case C_NT_WEAK: | |
4694 | #endif | |
4695 | if (syment->n_scnum == 0) | |
4696 | { | |
4697 | if (syment->n_value == 0) | |
4698 | return COFF_SYMBOL_UNDEFINED; | |
4699 | else | |
4700 | return COFF_SYMBOL_COMMON; | |
4701 | } | |
4702 | return COFF_SYMBOL_GLOBAL; | |
4703 | ||
4704 | default: | |
4705 | break; | |
4706 | } | |
252b5132 | 4707 | |
5d54c628 ILT |
4708 | #ifdef COFF_WITH_PE |
4709 | if (syment->n_sclass == C_STAT) | |
4710 | { | |
4711 | if (syment->n_scnum == 0) | |
4712 | { | |
4713 | /* The Microsoft compiler sometimes generates these if a | |
4714 | small static function is inlined every time it is used. | |
4715 | The function is discarded, but the symbol table entry | |
4716 | remains. */ | |
4717 | return COFF_SYMBOL_LOCAL; | |
4718 | } | |
252b5132 | 4719 | |
0717ebb7 | 4720 | #ifdef STRICT_PE_FORMAT |
bd826630 ILT |
4721 | /* This is correct for Microsoft generated objects, but it |
4722 | breaks gas generated objects. */ | |
4723 | ||
5d54c628 ILT |
4724 | if (syment->n_value == 0) |
4725 | { | |
4726 | asection *sec; | |
4727 | char buf[SYMNMLEN + 1]; | |
4728 | ||
4729 | sec = coff_section_from_bfd_index (abfd, syment->n_scnum); | |
4730 | if (sec != NULL | |
4731 | && (strcmp (bfd_get_section_name (abfd, sec), | |
4732 | _bfd_coff_internal_syment_name (abfd, syment, buf)) | |
4733 | == 0)) | |
4734 | return COFF_SYMBOL_PE_SECTION; | |
4735 | } | |
bd826630 | 4736 | #endif |
252b5132 | 4737 | |
5d54c628 ILT |
4738 | return COFF_SYMBOL_LOCAL; |
4739 | } | |
252b5132 | 4740 | |
5d54c628 ILT |
4741 | if (syment->n_sclass == C_SECTION) |
4742 | { | |
4743 | /* In some cases in a DLL generated by the Microsoft linker, the | |
4744 | n_value field will contain garbage. FIXME: This should | |
4745 | probably be handled by the swapping function instead. */ | |
4746 | syment->n_value = 0; | |
4747 | if (syment->n_scnum == 0) | |
4748 | return COFF_SYMBOL_UNDEFINED; | |
4749 | return COFF_SYMBOL_PE_SECTION; | |
4750 | } | |
4751 | #endif /* COFF_WITH_PE */ | |
252b5132 | 4752 | |
5d54c628 | 4753 | /* If it is not a global symbol, we presume it is a local symbol. */ |
252b5132 | 4754 | |
5d54c628 ILT |
4755 | if (syment->n_scnum == 0) |
4756 | { | |
4757 | char buf[SYMNMLEN + 1]; | |
252b5132 | 4758 | |
5d54c628 ILT |
4759 | (*_bfd_error_handler) |
4760 | (_("warning: %s: local symbol `%s' has no section"), | |
8f615d07 | 4761 | bfd_archive_filename (abfd), |
5d54c628 ILT |
4762 | _bfd_coff_internal_syment_name (abfd, syment, buf)); |
4763 | } | |
252b5132 | 4764 | |
5d54c628 ILT |
4765 | return COFF_SYMBOL_LOCAL; |
4766 | } | |
252b5132 RH |
4767 | |
4768 | /* | |
4769 | SUBSUBSECTION | |
4770 | Reading relocations | |
4771 | ||
4772 | Coff relocations are easily transformed into the internal BFD form | |
4773 | (@code{arelent}). | |
4774 | ||
4775 | Reading a coff relocation table is done in the following stages: | |
4776 | ||
4777 | o Read the entire coff relocation table into memory. | |
4778 | ||
4779 | o Process each relocation in turn; first swap it from the | |
4780 | external to the internal form. | |
4781 | ||
4782 | o Turn the symbol referenced in the relocation's symbol index | |
4783 | into a pointer into the canonical symbol table. | |
4784 | This table is the same as the one returned by a call to | |
4785 | @code{bfd_canonicalize_symtab}. The back end will call that | |
4786 | routine and save the result if a canonicalization hasn't been done. | |
4787 | ||
4788 | o The reloc index is turned into a pointer to a howto | |
4789 | structure, in a back end specific way. For instance, the 386 | |
4790 | and 960 use the @code{r_type} to directly produce an index | |
4791 | into a howto table vector; the 88k subtracts a number from the | |
4792 | @code{r_type} field and creates an addend field. | |
4793 | ||
252b5132 RH |
4794 | */ |
4795 | ||
4796 | #ifndef CALC_ADDEND | |
4797 | #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \ | |
4798 | { \ | |
4799 | coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \ | |
4800 | if (ptr && bfd_asymbol_bfd (ptr) != abfd) \ | |
4801 | coffsym = (obj_symbols (abfd) \ | |
4802 | + (cache_ptr->sym_ptr_ptr - symbols)); \ | |
4803 | else if (ptr) \ | |
4804 | coffsym = coff_symbol_from (abfd, ptr); \ | |
4805 | if (coffsym != (coff_symbol_type *) NULL \ | |
4806 | && coffsym->native->u.syment.n_scnum == 0) \ | |
4807 | cache_ptr->addend = 0; \ | |
4808 | else if (ptr && bfd_asymbol_bfd (ptr) == abfd \ | |
4809 | && ptr->section != (asection *) NULL) \ | |
4810 | cache_ptr->addend = - (ptr->section->vma + ptr->value); \ | |
4811 | else \ | |
4812 | cache_ptr->addend = 0; \ | |
4813 | } | |
4814 | #endif | |
4815 | ||
4816 | static boolean | |
4817 | coff_slurp_reloc_table (abfd, asect, symbols) | |
4818 | bfd * abfd; | |
4819 | sec_ptr asect; | |
4820 | asymbol ** symbols; | |
4821 | { | |
4822 | RELOC *native_relocs; | |
4823 | arelent *reloc_cache; | |
4824 | arelent *cache_ptr; | |
252b5132 | 4825 | unsigned int idx; |
dc810e39 | 4826 | bfd_size_type amt; |
252b5132 RH |
4827 | |
4828 | if (asect->relocation) | |
4829 | return true; | |
4830 | if (asect->reloc_count == 0) | |
4831 | return true; | |
4832 | if (asect->flags & SEC_CONSTRUCTOR) | |
4833 | return true; | |
4834 | if (!coff_slurp_symbol_table (abfd)) | |
4835 | return false; | |
dc810e39 AM |
4836 | amt = (bfd_size_type) bfd_coff_relsz (abfd) * asect->reloc_count; |
4837 | native_relocs = (RELOC *) buy_and_read (abfd, asect->rel_filepos, amt); | |
4838 | amt = (bfd_size_type) asect->reloc_count * sizeof (arelent); | |
4839 | reloc_cache = (arelent *) bfd_alloc (abfd, amt); | |
252b5132 RH |
4840 | |
4841 | if (reloc_cache == NULL) | |
4842 | return false; | |
4843 | ||
252b5132 RH |
4844 | for (idx = 0; idx < asect->reloc_count; idx++) |
4845 | { | |
4846 | struct internal_reloc dst; | |
4847 | struct external_reloc *src; | |
4848 | #ifndef RELOC_PROCESSING | |
4849 | asymbol *ptr; | |
4850 | #endif | |
4851 | ||
4852 | cache_ptr = reloc_cache + idx; | |
4853 | src = native_relocs + idx; | |
4854 | ||
4855 | coff_swap_reloc_in (abfd, src, &dst); | |
4856 | ||
4857 | #ifdef RELOC_PROCESSING | |
4858 | RELOC_PROCESSING (cache_ptr, &dst, symbols, abfd, asect); | |
4859 | #else | |
4860 | cache_ptr->address = dst.r_vaddr; | |
4861 | ||
4862 | if (dst.r_symndx != -1) | |
4863 | { | |
4864 | if (dst.r_symndx < 0 || dst.r_symndx >= obj_conv_table_size (abfd)) | |
4865 | { | |
4866 | (*_bfd_error_handler) | |
4867 | (_("%s: warning: illegal symbol index %ld in relocs"), | |
8f615d07 | 4868 | bfd_archive_filename (abfd), dst.r_symndx); |
252b5132 RH |
4869 | cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; |
4870 | ptr = NULL; | |
4871 | } | |
4872 | else | |
4873 | { | |
4874 | cache_ptr->sym_ptr_ptr = (symbols | |
4875 | + obj_convert (abfd)[dst.r_symndx]); | |
4876 | ptr = *(cache_ptr->sym_ptr_ptr); | |
4877 | } | |
4878 | } | |
4879 | else | |
4880 | { | |
4881 | cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; | |
4882 | ptr = NULL; | |
4883 | } | |
4884 | ||
4885 | /* The symbols definitions that we have read in have been | |
4886 | relocated as if their sections started at 0. But the offsets | |
4887 | refering to the symbols in the raw data have not been | |
4888 | modified, so we have to have a negative addend to compensate. | |
4889 | ||
4890 | Note that symbols which used to be common must be left alone */ | |
4891 | ||
4892 | /* Calculate any reloc addend by looking at the symbol */ | |
4893 | CALC_ADDEND (abfd, ptr, dst, cache_ptr); | |
4894 | ||
4895 | cache_ptr->address -= asect->vma; | |
4896 | /* !! cache_ptr->section = (asection *) NULL;*/ | |
4897 | ||
4898 | /* Fill in the cache_ptr->howto field from dst.r_type */ | |
4899 | RTYPE2HOWTO (cache_ptr, &dst); | |
4900 | #endif /* RELOC_PROCESSING */ | |
4901 | ||
4902 | if (cache_ptr->howto == NULL) | |
4903 | { | |
4904 | (*_bfd_error_handler) | |
4905 | (_("%s: illegal relocation type %d at address 0x%lx"), | |
8f615d07 | 4906 | bfd_archive_filename (abfd), dst.r_type, (long) dst.r_vaddr); |
252b5132 RH |
4907 | bfd_set_error (bfd_error_bad_value); |
4908 | return false; | |
4909 | } | |
4910 | } | |
4911 | ||
4912 | asect->relocation = reloc_cache; | |
4913 | return true; | |
4914 | } | |
4915 | ||
4916 | #ifndef coff_rtype_to_howto | |
4917 | #ifdef RTYPE2HOWTO | |
4918 | ||
4919 | /* Get the howto structure for a reloc. This is only used if the file | |
4920 | including this one defines coff_relocate_section to be | |
4921 | _bfd_coff_generic_relocate_section, so it is OK if it does not | |
4922 | always work. It is the responsibility of the including file to | |
4923 | make sure it is reasonable if it is needed. */ | |
4924 | ||
4925 | static reloc_howto_type *coff_rtype_to_howto | |
4926 | PARAMS ((bfd *, asection *, struct internal_reloc *, | |
4927 | struct coff_link_hash_entry *, struct internal_syment *, | |
4928 | bfd_vma *)); | |
4929 | ||
4930 | /*ARGSUSED*/ | |
4931 | static reloc_howto_type * | |
4932 | coff_rtype_to_howto (abfd, sec, rel, h, sym, addendp) | |
5f771d47 ILT |
4933 | bfd *abfd ATTRIBUTE_UNUSED; |
4934 | asection *sec ATTRIBUTE_UNUSED; | |
252b5132 | 4935 | struct internal_reloc *rel; |
5f771d47 ILT |
4936 | struct coff_link_hash_entry *h ATTRIBUTE_UNUSED; |
4937 | struct internal_syment *sym ATTRIBUTE_UNUSED; | |
4938 | bfd_vma *addendp ATTRIBUTE_UNUSED; | |
252b5132 RH |
4939 | { |
4940 | arelent genrel; | |
4941 | ||
4942 | RTYPE2HOWTO (&genrel, rel); | |
4943 | return genrel.howto; | |
4944 | } | |
4945 | ||
4946 | #else /* ! defined (RTYPE2HOWTO) */ | |
4947 | ||
4948 | #define coff_rtype_to_howto NULL | |
4949 | ||
4950 | #endif /* ! defined (RTYPE2HOWTO) */ | |
4951 | #endif /* ! defined (coff_rtype_to_howto) */ | |
4952 | ||
4953 | /* This is stupid. This function should be a boolean predicate. */ | |
4954 | static long | |
4955 | coff_canonicalize_reloc (abfd, section, relptr, symbols) | |
4956 | bfd * abfd; | |
4957 | sec_ptr section; | |
4958 | arelent ** relptr; | |
4959 | asymbol ** symbols; | |
4960 | { | |
4961 | arelent *tblptr = section->relocation; | |
4962 | unsigned int count = 0; | |
4963 | ||
252b5132 RH |
4964 | if (section->flags & SEC_CONSTRUCTOR) |
4965 | { | |
4966 | /* this section has relocs made up by us, they are not in the | |
4967 | file, so take them out of their chain and place them into | |
4968 | the data area provided */ | |
4969 | arelent_chain *chain = section->constructor_chain; | |
4970 | for (count = 0; count < section->reloc_count; count++) | |
4971 | { | |
4972 | *relptr++ = &chain->relent; | |
4973 | chain = chain->next; | |
4974 | } | |
4975 | ||
4976 | } | |
4977 | else | |
4978 | { | |
4979 | if (! coff_slurp_reloc_table (abfd, section, symbols)) | |
4980 | return -1; | |
4981 | ||
4982 | tblptr = section->relocation; | |
4983 | ||
4984 | for (; count++ < section->reloc_count;) | |
4985 | *relptr++ = tblptr++; | |
252b5132 RH |
4986 | } |
4987 | *relptr = 0; | |
4988 | return section->reloc_count; | |
4989 | } | |
4990 | ||
4991 | #ifdef GNU960 | |
4992 | file_ptr | |
4993 | coff_sym_filepos (abfd) | |
4994 | bfd *abfd; | |
4995 | { | |
4996 | return obj_sym_filepos (abfd); | |
4997 | } | |
4998 | #endif | |
4999 | ||
5000 | #ifndef coff_reloc16_estimate | |
5001 | #define coff_reloc16_estimate dummy_reloc16_estimate | |
5002 | ||
5003 | static int dummy_reloc16_estimate | |
5004 | PARAMS ((bfd *, asection *, arelent *, unsigned int, | |
5005 | struct bfd_link_info *)); | |
5006 | ||
5007 | static int | |
5008 | dummy_reloc16_estimate (abfd, input_section, reloc, shrink, link_info) | |
5f771d47 ILT |
5009 | bfd *abfd ATTRIBUTE_UNUSED; |
5010 | asection *input_section ATTRIBUTE_UNUSED; | |
5011 | arelent *reloc ATTRIBUTE_UNUSED; | |
5012 | unsigned int shrink ATTRIBUTE_UNUSED; | |
5013 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED; | |
252b5132 RH |
5014 | { |
5015 | abort (); | |
00692651 | 5016 | return 0; |
252b5132 RH |
5017 | } |
5018 | ||
5019 | #endif | |
5020 | ||
5021 | #ifndef coff_reloc16_extra_cases | |
5022 | ||
5023 | #define coff_reloc16_extra_cases dummy_reloc16_extra_cases | |
5024 | ||
5025 | /* This works even if abort is not declared in any header file. */ | |
5026 | ||
5027 | static void dummy_reloc16_extra_cases | |
5028 | PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *, | |
5029 | bfd_byte *, unsigned int *, unsigned int *)); | |
5030 | ||
5031 | static void | |
5032 | dummy_reloc16_extra_cases (abfd, link_info, link_order, reloc, data, src_ptr, | |
5033 | dst_ptr) | |
5f771d47 ILT |
5034 | bfd *abfd ATTRIBUTE_UNUSED; |
5035 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED; | |
5036 | struct bfd_link_order *link_order ATTRIBUTE_UNUSED; | |
5037 | arelent *reloc ATTRIBUTE_UNUSED; | |
5038 | bfd_byte *data ATTRIBUTE_UNUSED; | |
5039 | unsigned int *src_ptr ATTRIBUTE_UNUSED; | |
5040 | unsigned int *dst_ptr ATTRIBUTE_UNUSED; | |
252b5132 RH |
5041 | { |
5042 | abort (); | |
5043 | } | |
5044 | #endif | |
5045 | ||
5046 | /* If coff_relocate_section is defined, we can use the optimized COFF | |
5047 | backend linker. Otherwise we must continue to use the old linker. */ | |
5048 | #ifdef coff_relocate_section | |
5049 | #ifndef coff_bfd_link_hash_table_create | |
5050 | #define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create | |
5051 | #endif | |
5052 | #ifndef coff_bfd_link_add_symbols | |
5053 | #define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols | |
5054 | #endif | |
5055 | #ifndef coff_bfd_final_link | |
5056 | #define coff_bfd_final_link _bfd_coff_final_link | |
5057 | #endif | |
5058 | #else /* ! defined (coff_relocate_section) */ | |
5059 | #define coff_relocate_section NULL | |
5060 | #ifndef coff_bfd_link_hash_table_create | |
5061 | #define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create | |
5062 | #endif | |
5063 | #ifndef coff_bfd_link_add_symbols | |
5064 | #define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols | |
5065 | #endif | |
5066 | #define coff_bfd_final_link _bfd_generic_final_link | |
5067 | #endif /* ! defined (coff_relocate_section) */ | |
5068 | ||
5069 | #define coff_bfd_link_split_section _bfd_generic_link_split_section | |
5070 | ||
5071 | #ifndef coff_start_final_link | |
5072 | #define coff_start_final_link NULL | |
5073 | #endif | |
5074 | ||
5075 | #ifndef coff_adjust_symndx | |
5076 | #define coff_adjust_symndx NULL | |
5077 | #endif | |
5078 | ||
5079 | #ifndef coff_link_add_one_symbol | |
5080 | #define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol | |
5081 | #endif | |
5082 | ||
5083 | #ifndef coff_link_output_has_begun | |
5084 | ||
5085 | static boolean coff_link_output_has_begun | |
5086 | PARAMS ((bfd *, struct coff_final_link_info *)); | |
5087 | ||
5088 | static boolean | |
5089 | coff_link_output_has_begun (abfd, info) | |
5090 | bfd * abfd; | |
5f771d47 | 5091 | struct coff_final_link_info * info ATTRIBUTE_UNUSED; |
252b5132 RH |
5092 | { |
5093 | return abfd->output_has_begun; | |
5094 | } | |
5095 | #endif | |
5096 | ||
5097 | #ifndef coff_final_link_postscript | |
5098 | ||
5099 | static boolean coff_final_link_postscript | |
5100 | PARAMS ((bfd *, struct coff_final_link_info *)); | |
5101 | ||
5102 | static boolean | |
5103 | coff_final_link_postscript (abfd, pfinfo) | |
5f771d47 ILT |
5104 | bfd * abfd ATTRIBUTE_UNUSED; |
5105 | struct coff_final_link_info * pfinfo ATTRIBUTE_UNUSED; | |
252b5132 RH |
5106 | { |
5107 | return true; | |
5108 | } | |
5109 | #endif | |
5110 | ||
5111 | #ifndef coff_SWAP_aux_in | |
5112 | #define coff_SWAP_aux_in coff_swap_aux_in | |
5113 | #endif | |
5114 | #ifndef coff_SWAP_sym_in | |
5115 | #define coff_SWAP_sym_in coff_swap_sym_in | |
5116 | #endif | |
5117 | #ifndef coff_SWAP_lineno_in | |
5118 | #define coff_SWAP_lineno_in coff_swap_lineno_in | |
5119 | #endif | |
5120 | #ifndef coff_SWAP_aux_out | |
5121 | #define coff_SWAP_aux_out coff_swap_aux_out | |
5122 | #endif | |
5123 | #ifndef coff_SWAP_sym_out | |
5124 | #define coff_SWAP_sym_out coff_swap_sym_out | |
5125 | #endif | |
5126 | #ifndef coff_SWAP_lineno_out | |
5127 | #define coff_SWAP_lineno_out coff_swap_lineno_out | |
5128 | #endif | |
5129 | #ifndef coff_SWAP_reloc_out | |
5130 | #define coff_SWAP_reloc_out coff_swap_reloc_out | |
5131 | #endif | |
5132 | #ifndef coff_SWAP_filehdr_out | |
5133 | #define coff_SWAP_filehdr_out coff_swap_filehdr_out | |
5134 | #endif | |
5135 | #ifndef coff_SWAP_aouthdr_out | |
5136 | #define coff_SWAP_aouthdr_out coff_swap_aouthdr_out | |
5137 | #endif | |
5138 | #ifndef coff_SWAP_scnhdr_out | |
5139 | #define coff_SWAP_scnhdr_out coff_swap_scnhdr_out | |
5140 | #endif | |
5141 | #ifndef coff_SWAP_reloc_in | |
5142 | #define coff_SWAP_reloc_in coff_swap_reloc_in | |
5143 | #endif | |
5144 | #ifndef coff_SWAP_filehdr_in | |
5145 | #define coff_SWAP_filehdr_in coff_swap_filehdr_in | |
5146 | #endif | |
5147 | #ifndef coff_SWAP_aouthdr_in | |
5148 | #define coff_SWAP_aouthdr_in coff_swap_aouthdr_in | |
5149 | #endif | |
5150 | #ifndef coff_SWAP_scnhdr_in | |
5151 | #define coff_SWAP_scnhdr_in coff_swap_scnhdr_in | |
5152 | #endif | |
5153 | ||
692b7d62 | 5154 | static const bfd_coff_backend_data bfd_coff_std_swap_table = |
252b5132 RH |
5155 | { |
5156 | coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in, | |
5157 | coff_SWAP_aux_out, coff_SWAP_sym_out, | |
5158 | coff_SWAP_lineno_out, coff_SWAP_reloc_out, | |
5159 | coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out, | |
5160 | coff_SWAP_scnhdr_out, | |
692b7d62 | 5161 | FILHSZ, AOUTSZ, SCNHSZ, SYMESZ, AUXESZ, RELSZ, LINESZ, FILNMLEN, |
252b5132 RH |
5162 | #ifdef COFF_LONG_FILENAMES |
5163 | true, | |
5164 | #else | |
5165 | false, | |
5166 | #endif | |
5167 | #ifdef COFF_LONG_SECTION_NAMES | |
5168 | true, | |
5169 | #else | |
5170 | false, | |
5171 | #endif | |
a022216b | 5172 | COFF_DEFAULT_SECTION_ALIGNMENT_POWER, |
7f6d05e8 CP |
5173 | #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS |
5174 | true, | |
5175 | #else | |
5176 | false, | |
5177 | #endif | |
5178 | #ifdef COFF_DEBUG_STRING_WIDE_PREFIX | |
5179 | 4, | |
5180 | #else | |
5181 | 2, | |
5182 | #endif | |
252b5132 RH |
5183 | coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in, |
5184 | coff_SWAP_reloc_in, coff_bad_format_hook, coff_set_arch_mach_hook, | |
5185 | coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook, | |
5186 | coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook, | |
5187 | coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate, | |
5d54c628 | 5188 | coff_classify_symbol, coff_compute_section_file_positions, |
252b5132 RH |
5189 | coff_start_final_link, coff_relocate_section, coff_rtype_to_howto, |
5190 | coff_adjust_symndx, coff_link_add_one_symbol, | |
5191 | coff_link_output_has_begun, coff_final_link_postscript | |
5192 | }; | |
5193 | ||
5194 | #ifndef coff_close_and_cleanup | |
5195 | #define coff_close_and_cleanup _bfd_generic_close_and_cleanup | |
5196 | #endif | |
5197 | ||
5198 | #ifndef coff_bfd_free_cached_info | |
5199 | #define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info | |
5200 | #endif | |
5201 | ||
5202 | #ifndef coff_get_section_contents | |
5203 | #define coff_get_section_contents _bfd_generic_get_section_contents | |
5204 | #endif | |
5205 | ||
5206 | #ifndef coff_bfd_copy_private_symbol_data | |
5207 | #define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data | |
5208 | #endif | |
5209 | ||
5210 | #ifndef coff_bfd_copy_private_section_data | |
5211 | #define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data | |
5212 | #endif | |
5213 | ||
e60b52c6 | 5214 | #ifndef coff_bfd_copy_private_bfd_data |
252b5132 RH |
5215 | #define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data |
5216 | #endif | |
5217 | ||
5218 | #ifndef coff_bfd_merge_private_bfd_data | |
5219 | #define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data | |
5220 | #endif | |
5221 | ||
5222 | #ifndef coff_bfd_set_private_flags | |
5223 | #define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags | |
5224 | #endif | |
5225 | ||
e60b52c6 | 5226 | #ifndef coff_bfd_print_private_bfd_data |
252b5132 RH |
5227 | #define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data |
5228 | #endif | |
5229 | ||
5230 | #ifndef coff_bfd_is_local_label_name | |
5231 | #define coff_bfd_is_local_label_name _bfd_coff_is_local_label_name | |
5232 | #endif | |
5233 | ||
5234 | #ifndef coff_read_minisymbols | |
5235 | #define coff_read_minisymbols _bfd_generic_read_minisymbols | |
5236 | #endif | |
5237 | ||
5238 | #ifndef coff_minisymbol_to_symbol | |
5239 | #define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol | |
5240 | #endif | |
5241 | ||
5242 | /* The reloc lookup routine must be supplied by each individual COFF | |
5243 | backend. */ | |
5244 | #ifndef coff_bfd_reloc_type_lookup | |
5245 | #define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup | |
5246 | #endif | |
5247 | ||
5248 | #ifndef coff_bfd_get_relocated_section_contents | |
5249 | #define coff_bfd_get_relocated_section_contents \ | |
5250 | bfd_generic_get_relocated_section_contents | |
5251 | #endif | |
5252 | ||
5253 | #ifndef coff_bfd_relax_section | |
5254 | #define coff_bfd_relax_section bfd_generic_relax_section | |
5255 | #endif | |
5256 | ||
5257 | #ifndef coff_bfd_gc_sections | |
5258 | #define coff_bfd_gc_sections bfd_generic_gc_sections | |
5259 | #endif | |
c3c89269 | 5260 | |
8550eb6e JJ |
5261 | #ifndef coff_bfd_merge_sections |
5262 | #define coff_bfd_merge_sections bfd_generic_merge_sections | |
5263 | #endif | |
5264 | ||
c3c89269 | 5265 | #define CREATE_BIG_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE) \ |
4c117b10 ILT |
5266 | const bfd_target VAR = \ |
5267 | { \ | |
5268 | NAME , \ | |
5269 | bfd_target_coff_flavour, \ | |
5270 | BFD_ENDIAN_BIG, /* data byte order is big */ \ | |
5271 | BFD_ENDIAN_BIG, /* header byte order is big */ \ | |
5272 | /* object flags */ \ | |
5273 | (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \ | |
5274 | HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \ | |
5275 | /* section flags */ \ | |
5276 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\ | |
5277 | UNDER, /* leading symbol underscore */ \ | |
5278 | '/', /* ar_pad_char */ \ | |
5279 | 15, /* ar_max_namelen */ \ | |
5280 | \ | |
5281 | /* Data conversion functions. */ \ | |
5282 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, \ | |
5283 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, \ | |
5284 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, \ | |
5285 | \ | |
5286 | /* Header conversion functions. */ \ | |
5287 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, \ | |
5288 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, \ | |
5289 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, \ | |
5290 | \ | |
5291 | /* bfd_check_format */ \ | |
5292 | { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \ | |
5293 | _bfd_dummy_target }, \ | |
5294 | /* bfd_set_format */ \ | |
5295 | { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \ | |
5296 | /* bfd_write_contents */ \ | |
5297 | { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \ | |
5298 | bfd_false }, \ | |
5299 | \ | |
5300 | BFD_JUMP_TABLE_GENERIC (coff), \ | |
5301 | BFD_JUMP_TABLE_COPY (coff), \ | |
5302 | BFD_JUMP_TABLE_CORE (_bfd_nocore), \ | |
5303 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \ | |
5304 | BFD_JUMP_TABLE_SYMBOLS (coff), \ | |
5305 | BFD_JUMP_TABLE_RELOCS (coff), \ | |
5306 | BFD_JUMP_TABLE_WRITE (coff), \ | |
5307 | BFD_JUMP_TABLE_LINK (coff), \ | |
5308 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \ | |
5309 | \ | |
5310 | ALTERNATIVE, \ | |
5311 | \ | |
5312 | COFF_SWAP_TABLE \ | |
c3c89269 NC |
5313 | }; |
5314 | ||
5315 | #define CREATE_LITTLE_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE) \ | |
4c117b10 ILT |
5316 | const bfd_target VAR = \ |
5317 | { \ | |
5318 | NAME , \ | |
5319 | bfd_target_coff_flavour, \ | |
5320 | BFD_ENDIAN_LITTLE, /* data byte order is little */ \ | |
5321 | BFD_ENDIAN_LITTLE, /* header byte order is little */ \ | |
5322 | /* object flags */ \ | |
5323 | (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \ | |
5324 | HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \ | |
5325 | /* section flags */ \ | |
5326 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\ | |
5327 | UNDER, /* leading symbol underscore */ \ | |
5328 | '/', /* ar_pad_char */ \ | |
5329 | 15, /* ar_max_namelen */ \ | |
5330 | \ | |
5331 | /* Data conversion functions. */ \ | |
5332 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, \ | |
5333 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, \ | |
5334 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, \ | |
5335 | /* Header conversion functions. */ \ | |
5336 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, \ | |
5337 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, \ | |
5338 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, \ | |
5339 | /* bfd_check_format */ \ | |
5340 | { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \ | |
5341 | _bfd_dummy_target }, \ | |
5342 | /* bfd_set_format */ \ | |
5343 | { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \ | |
5344 | /* bfd_write_contents */ \ | |
5345 | { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \ | |
5346 | bfd_false }, \ | |
5347 | \ | |
5348 | BFD_JUMP_TABLE_GENERIC (coff), \ | |
5349 | BFD_JUMP_TABLE_COPY (coff), \ | |
5350 | BFD_JUMP_TABLE_CORE (_bfd_nocore), \ | |
5351 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \ | |
5352 | BFD_JUMP_TABLE_SYMBOLS (coff), \ | |
5353 | BFD_JUMP_TABLE_RELOCS (coff), \ | |
5354 | BFD_JUMP_TABLE_WRITE (coff), \ | |
5355 | BFD_JUMP_TABLE_LINK (coff), \ | |
5356 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \ | |
5357 | \ | |
5358 | ALTERNATIVE, \ | |
5359 | \ | |
5360 | COFF_SWAP_TABLE \ | |
c3c89269 | 5361 | }; |