Go to most recent revision | Details | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
5197 | serge | 1 | /* Support for the generic parts of most COFF variants, for BFD. |
2 | Copyright 1990-2013 Free Software Foundation, Inc. |
||
3 | Written by Cygnus Support. |
||
4 | |||
5 | This file is part of BFD, the Binary File Descriptor library. |
||
6 | |||
7 | This program is free software; you can redistribute it and/or modify |
||
8 | it under the terms of the GNU General Public License as published by |
||
9 | the Free Software Foundation; either version 3 of the License, or |
||
10 | (at your option) any later version. |
||
11 | |||
12 | This program is distributed in the hope that it will be useful, |
||
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
||
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||
15 | GNU General Public License for more details. |
||
16 | |||
17 | You should have received a copy of the GNU General Public License |
||
18 | along with this program; if not, write to the Free Software |
||
19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
||
20 | MA 02110-1301, USA. */ |
||
21 | |||
22 | /* Most of this hacked by Steve Chamberlain, |
||
23 | sac@cygnus.com. */ |
||
24 | /* |
||
25 | SECTION |
||
26 | coff backends |
||
27 | |||
28 | BFD supports a number of different flavours of coff format. |
||
29 | The major differences between formats are the sizes and |
||
30 | alignments of fields in structures on disk, and the occasional |
||
31 | extra field. |
||
32 | |||
33 | Coff in all its varieties is implemented with a few common |
||
34 | files and a number of implementation specific files. For |
||
35 | example, The 88k bcs coff format is implemented in the file |
||
36 | @file{coff-m88k.c}. This file @code{#include}s |
||
37 | @file{coff/m88k.h} which defines the external structure of the |
||
38 | coff format for the 88k, and @file{coff/internal.h} which |
||
39 | defines the internal structure. @file{coff-m88k.c} also |
||
40 | defines the relocations used by the 88k format |
||
41 | @xref{Relocations}. |
||
42 | |||
43 | The Intel i960 processor version of coff is implemented in |
||
44 | @file{coff-i960.c}. This file has the same structure as |
||
45 | @file{coff-m88k.c}, except that it includes @file{coff/i960.h} |
||
46 | rather than @file{coff-m88k.h}. |
||
47 | |||
48 | SUBSECTION |
||
49 | Porting to a new version of coff |
||
50 | |||
51 | The recommended method is to select from the existing |
||
52 | implementations the version of coff which is most like the one |
||
53 | you want to use. For example, we'll say that i386 coff is |
||
54 | the one you select, and that your coff flavour is called foo. |
||
55 | Copy @file{i386coff.c} to @file{foocoff.c}, copy |
||
56 | @file{../include/coff/i386.h} to @file{../include/coff/foo.h}, |
||
57 | and add the lines to @file{targets.c} and @file{Makefile.in} |
||
58 | so that your new back end is used. Alter the shapes of the |
||
59 | structures in @file{../include/coff/foo.h} so that they match |
||
60 | what you need. You will probably also have to add |
||
61 | @code{#ifdef}s to the code in @file{coff/internal.h} and |
||
62 | @file{coffcode.h} if your version of coff is too wild. |
||
63 | |||
64 | You can verify that your new BFD backend works quite simply by |
||
65 | building @file{objdump} from the @file{binutils} directory, |
||
66 | and making sure that its version of what's going on and your |
||
67 | host system's idea (assuming it has the pretty standard coff |
||
68 | dump utility, usually called @code{att-dump} or just |
||
69 | @code{dump}) are the same. Then clean up your code, and send |
||
70 | what you've done to Cygnus. Then your stuff will be in the |
||
71 | next release, and you won't have to keep integrating it. |
||
72 | |||
73 | SUBSECTION |
||
74 | How the coff backend works |
||
75 | |||
76 | SUBSUBSECTION |
||
77 | File layout |
||
78 | |||
79 | The Coff backend is split into generic routines that are |
||
80 | applicable to any Coff target and routines that are specific |
||
81 | to a particular target. The target-specific routines are |
||
82 | further split into ones which are basically the same for all |
||
83 | Coff targets except that they use the external symbol format |
||
84 | or use different values for certain constants. |
||
85 | |||
86 | The generic routines are in @file{coffgen.c}. These routines |
||
87 | work for any Coff target. They use some hooks into the target |
||
88 | specific code; the hooks are in a @code{bfd_coff_backend_data} |
||
89 | structure, one of which exists for each target. |
||
90 | |||
91 | The essentially similar target-specific routines are in |
||
92 | @file{coffcode.h}. This header file includes executable C code. |
||
93 | The various Coff targets first include the appropriate Coff |
||
94 | header file, make any special defines that are needed, and |
||
95 | then include @file{coffcode.h}. |
||
96 | |||
97 | Some of the Coff targets then also have additional routines in |
||
98 | the target source file itself. |
||
99 | |||
100 | For example, @file{coff-i960.c} includes |
||
101 | @file{coff/internal.h} and @file{coff/i960.h}. It then |
||
102 | defines a few constants, such as @code{I960}, and includes |
||
103 | @file{coffcode.h}. Since the i960 has complex relocation |
||
104 | types, @file{coff-i960.c} also includes some code to |
||
105 | manipulate the i960 relocs. This code is not in |
||
106 | @file{coffcode.h} because it would not be used by any other |
||
107 | target. |
||
108 | |||
109 | SUBSUBSECTION |
||
110 | Coff long section names |
||
111 | |||
112 | In the standard Coff object format, section names are limited to |
||
113 | the eight bytes available in the @code{s_name} field of the |
||
114 | @code{SCNHDR} section header structure. The format requires the |
||
115 | field to be NUL-padded, but not necessarily NUL-terminated, so |
||
116 | the longest section names permitted are a full eight characters. |
||
117 | |||
118 | The Microsoft PE variants of the Coff object file format add |
||
119 | an extension to support the use of long section names. This |
||
120 | extension is defined in section 4 of the Microsoft PE/COFF |
||
121 | specification (rev 8.1). If a section name is too long to fit |
||
122 | into the section header's @code{s_name} field, it is instead |
||
123 | placed into the string table, and the @code{s_name} field is |
||
124 | filled with a slash ("/") followed by the ASCII decimal |
||
125 | representation of the offset of the full name relative to the |
||
126 | string table base. |
||
127 | |||
128 | Note that this implies that the extension can only be used in object |
||
129 | files, as executables do not contain a string table. The standard |
||
130 | specifies that long section names from objects emitted into executable |
||
131 | images are to be truncated. |
||
132 | |||
133 | However, as a GNU extension, BFD can generate executable images |
||
134 | that contain a string table and long section names. This |
||
135 | would appear to be technically valid, as the standard only says |
||
136 | that Coff debugging information is deprecated, not forbidden, |
||
137 | and in practice it works, although some tools that parse PE files |
||
138 | expecting the MS standard format may become confused; @file{PEview} is |
||
139 | one known example. |
||
140 | |||
141 | The functionality is supported in BFD by code implemented under |
||
142 | the control of the macro @code{COFF_LONG_SECTION_NAMES}. If not |
||
143 | defined, the format does not support long section names in any way. |
||
144 | If defined, it is used to initialise a flag, |
||
145 | @code{_bfd_coff_long_section_names}, and a hook function pointer, |
||
146 | @code{_bfd_coff_set_long_section_names}, in the Coff backend data |
||
147 | structure. The flag controls the generation of long section names |
||
148 | in output BFDs at runtime; if it is false, as it will be by default |
||
149 | when generating an executable image, long section names are truncated; |
||
150 | if true, the long section names extension is employed. The hook |
||
151 | points to a function that allows the value of the flag to be altered |
||
152 | at runtime, on formats that support long section names at all; on |
||
153 | other formats it points to a stub that returns an error indication. |
||
154 | |||
155 | With input BFDs, the flag is set according to whether any long section |
||
156 | names are detected while reading the section headers. For a completely |
||
157 | new BFD, the flag is set to the default for the target format. This |
||
158 | information can be used by a client of the BFD library when deciding |
||
159 | what output format to generate, and means that a BFD that is opened |
||
160 | for read and subsequently converted to a writeable BFD and modified |
||
161 | in-place will retain whatever format it had on input. |
||
162 | |||
163 | If @code{COFF_LONG_SECTION_NAMES} is simply defined (blank), or is |
||
164 | defined to the value "1", then long section names are enabled by |
||
165 | default; if it is defined to the value zero, they are disabled by |
||
166 | default (but still accepted in input BFDs). The header @file{coffcode.h} |
||
167 | defines a macro, @code{COFF_DEFAULT_LONG_SECTION_NAMES}, which is |
||
168 | used in the backends to initialise the backend data structure fields |
||
169 | appropriately; see the comments for further detail. |
||
170 | |||
171 | SUBSUBSECTION |
||
172 | Bit twiddling |
||
173 | |||
174 | Each flavour of coff supported in BFD has its own header file |
||
175 | describing the external layout of the structures. There is also |
||
176 | an internal description of the coff layout, in |
||
177 | @file{coff/internal.h}. A major function of the |
||
178 | coff backend is swapping the bytes and twiddling the bits to |
||
179 | translate the external form of the structures into the normal |
||
180 | internal form. This is all performed in the |
||
181 | @code{bfd_swap}_@i{thing}_@i{direction} routines. Some |
||
182 | elements are different sizes between different versions of |
||
183 | coff; it is the duty of the coff version specific include file |
||
184 | to override the definitions of various packing routines in |
||
185 | @file{coffcode.h}. E.g., the size of line number entry in coff is |
||
186 | sometimes 16 bits, and sometimes 32 bits. @code{#define}ing |
||
187 | @code{PUT_LNSZ_LNNO} and @code{GET_LNSZ_LNNO} will select the |
||
188 | correct one. No doubt, some day someone will find a version of |
||
189 | coff which has a varying field size not catered to at the |
||
190 | moment. To port BFD, that person will have to add more @code{#defines}. |
||
191 | Three of the bit twiddling routines are exported to |
||
192 | @code{gdb}; @code{coff_swap_aux_in}, @code{coff_swap_sym_in} |
||
193 | and @code{coff_swap_lineno_in}. @code{GDB} reads the symbol |
||
194 | table on its own, but uses BFD to fix things up. More of the |
||
195 | bit twiddlers are exported for @code{gas}; |
||
196 | @code{coff_swap_aux_out}, @code{coff_swap_sym_out}, |
||
197 | @code{coff_swap_lineno_out}, @code{coff_swap_reloc_out}, |
||
198 | @code{coff_swap_filehdr_out}, @code{coff_swap_aouthdr_out}, |
||
199 | @code{coff_swap_scnhdr_out}. @code{Gas} currently keeps track |
||
200 | of all the symbol table and reloc drudgery itself, thereby |
||
201 | saving the internal BFD overhead, but uses BFD to swap things |
||
202 | on the way out, making cross ports much safer. Doing so also |
||
203 | allows BFD (and thus the linker) to use the same header files |
||
204 | as @code{gas}, which makes one avenue to disaster disappear. |
||
205 | |||
206 | SUBSUBSECTION |
||
207 | Symbol reading |
||
208 | |||
209 | The simple canonical form for symbols used by BFD is not rich |
||
210 | enough to keep all the information available in a coff symbol |
||
211 | table. The back end gets around this problem by keeping the original |
||
212 | symbol table around, "behind the scenes". |
||
213 | |||
214 | When a symbol table is requested (through a call to |
||
215 | @code{bfd_canonicalize_symtab}), a request gets through to |
||
216 | @code{coff_get_normalized_symtab}. This reads the symbol table from |
||
217 | the coff file and swaps all the structures inside into the |
||
218 | internal form. It also fixes up all the pointers in the table |
||
219 | (represented in the file by offsets from the first symbol in |
||
220 | the table) into physical pointers to elements in the new |
||
221 | internal table. This involves some work since the meanings of |
||
222 | fields change depending upon context: a field that is a |
||
223 | pointer to another structure in the symbol table at one moment |
||
224 | may be the size in bytes of a structure at the next. Another |
||
225 | pass is made over the table. All symbols which mark file names |
||
226 | (< |
||
227 | string points to the value in the auxent (the real filename) |
||
228 | rather than the normal text associated with the symbol |
||
229 | (@code{".file"}). |
||
230 | |||
231 | At this time the symbol names are moved around. Coff stores |
||
232 | all symbols less than nine characters long physically |
||
233 | within the symbol table; longer strings are kept at the end of |
||
234 | the file in the string table. This pass moves all strings |
||
235 | into memory and replaces them with pointers to the strings. |
||
236 | |||
237 | The symbol table is massaged once again, this time to create |
||
238 | the canonical table used by the BFD application. Each symbol |
||
239 | is inspected in turn, and a decision made (using the |
||
240 | @code{sclass} field) about the various flags to set in the |
||
241 | @code{asymbol}. @xref{Symbols}. The generated canonical table |
||
242 | shares strings with the hidden internal symbol table. |
||
243 | |||
244 | Any linenumbers are read from the coff file too, and attached |
||
245 | to the symbols which own the functions the linenumbers belong to. |
||
246 | |||
247 | SUBSUBSECTION |
||
248 | Symbol writing |
||
249 | |||
250 | Writing a symbol to a coff file which didn't come from a coff |
||
251 | file will lose any debugging information. The @code{asymbol} |
||
252 | structure remembers the BFD from which the symbol was taken, and on |
||
253 | output the back end makes sure that the same destination target as |
||
254 | source target is present. |
||
255 | |||
256 | When the symbols have come from a coff file then all the |
||
257 | debugging information is preserved. |
||
258 | |||
259 | Symbol tables are provided for writing to the back end in a |
||
260 | vector of pointers to pointers. This allows applications like |
||
261 | the linker to accumulate and output large symbol tables |
||
262 | without having to do too much byte copying. |
||
263 | |||
264 | This function runs through the provided symbol table and |
||
265 | patches each symbol marked as a file place holder |
||
266 | (@code{C_FILE}) to point to the next file place holder in the |
||
267 | list. It also marks each @code{offset} field in the list with |
||
268 | the offset from the first symbol of the current symbol. |
||
269 | |||
270 | Another function of this procedure is to turn the canonical |
||
271 | value form of BFD into the form used by coff. Internally, BFD |
||
272 | expects symbol values to be offsets from a section base; so a |
||
273 | symbol physically at 0x120, but in a section starting at |
||
274 | 0x100, would have the value 0x20. Coff expects symbols to |
||
275 | contain their final value, so symbols have their values |
||
276 | changed at this point to reflect their sum with their owning |
||
277 | section. This transformation uses the |
||
278 | < |
||
279 | @code{asection} @xref{Sections}. |
||
280 | |||
281 | o < |
||
282 | |||
283 | This routine runs though the provided symbol table and uses |
||
284 | the offsets generated by the previous pass and the pointers |
||
285 | generated when the symbol table was read in to create the |
||
286 | structured hierarchy required by coff. It changes each pointer |
||
287 | to a symbol into the index into the symbol table of the asymbol. |
||
288 | |||
289 | o < |
||
290 | |||
291 | This routine runs through the symbol table and patches up the |
||
292 | symbols from their internal form into the coff way, calls the |
||
293 | bit twiddlers, and writes out the table to the file. |
||
294 | |||
295 | */ |
||
296 | |||
297 | /* |
||
298 | INTERNAL_DEFINITION |
||
299 | coff_symbol_type |
||
300 | |||
301 | DESCRIPTION |
||
302 | The hidden information for an < |
||
303 | < |
||
304 | |||
305 | CODE_FRAGMENT |
||
306 | . |
||
307 | .typedef struct coff_ptr_struct |
||
308 | .{ |
||
309 | . {* Remembers the offset from the first symbol in the file for |
||
310 | . this symbol. Generated by coff_renumber_symbols. *} |
||
311 | . unsigned int offset; |
||
312 | . |
||
313 | . {* Should the value of this symbol be renumbered. Used for |
||
314 | . XCOFF C_BSTAT symbols. Set by coff_slurp_symbol_table. *} |
||
315 | . unsigned int fix_value : 1; |
||
316 | . |
||
317 | . {* Should the tag field of this symbol be renumbered. |
||
318 | . Created by coff_pointerize_aux. *} |
||
319 | . unsigned int fix_tag : 1; |
||
320 | . |
||
321 | . {* Should the endidx field of this symbol be renumbered. |
||
322 | . Created by coff_pointerize_aux. *} |
||
323 | . unsigned int fix_end : 1; |
||
324 | . |
||
325 | . {* Should the x_csect.x_scnlen field be renumbered. |
||
326 | . Created by coff_pointerize_aux. *} |
||
327 | . unsigned int fix_scnlen : 1; |
||
328 | . |
||
329 | . {* Fix up an XCOFF C_BINCL/C_EINCL symbol. The value is the |
||
330 | . index into the line number entries. Set by coff_slurp_symbol_table. *} |
||
331 | . unsigned int fix_line : 1; |
||
332 | . |
||
333 | . {* The container for the symbol structure as read and translated |
||
334 | . from the file. *} |
||
335 | . union |
||
336 | . { |
||
337 | . union internal_auxent auxent; |
||
338 | . struct internal_syment syment; |
||
339 | . } u; |
||
340 | .} combined_entry_type; |
||
341 | . |
||
342 | . |
||
343 | .{* Each canonical asymbol really looks like this: *} |
||
344 | . |
||
345 | .typedef struct coff_symbol_struct |
||
346 | .{ |
||
347 | . {* The actual symbol which the rest of BFD works with *} |
||
348 | . asymbol symbol; |
||
349 | . |
||
350 | . {* A pointer to the hidden information for this symbol *} |
||
351 | . combined_entry_type *native; |
||
352 | . |
||
353 | . {* A pointer to the linenumber information for this symbol *} |
||
354 | . struct lineno_cache_entry *lineno; |
||
355 | . |
||
356 | . {* Have the line numbers been relocated yet ? *} |
||
357 | . bfd_boolean done_lineno; |
||
358 | .} coff_symbol_type; |
||
359 | |||
360 | */ |
||
361 | |||
362 | #include "libiberty.h" |
||
363 | |||
364 | #ifdef COFF_WITH_PE |
||
365 | #include "peicode.h" |
||
366 | #else |
||
367 | #include "coffswap.h" |
||
368 | #endif |
||
369 | |||
370 | #define STRING_SIZE_SIZE 4 |
||
371 | |||
372 | #define DOT_DEBUG ".debug" |
||
373 | #define DOT_ZDEBUG ".zdebug" |
||
374 | #define GNU_LINKONCE_WI ".gnu.linkonce.wi." |
||
375 | #define GNU_LINKONCE_WT ".gnu.linkonce.wt." |
||
376 | #define DOT_RELOC ".reloc" |
||
377 | |||
378 | #if defined (COFF_LONG_SECTION_NAMES) |
||
379 | /* Needed to expand the inputs to BLANKOR1TOODD. */ |
||
380 | #define COFFLONGSECTIONCATHELPER(x,y) x ## y |
||
381 | /* If the input macro Y is blank or '1', return an odd number; if it is |
||
382 | '0', return an even number. Result undefined in all other cases. */ |
||
383 | #define BLANKOR1TOODD(y) COFFLONGSECTIONCATHELPER(1,y) |
||
384 | /* Defined to numerical 0 or 1 according to whether generation of long |
||
385 | section names is disabled or enabled by default. */ |
||
386 | #define COFF_ENABLE_LONG_SECTION_NAMES (BLANKOR1TOODD(COFF_LONG_SECTION_NAMES) & 1) |
||
387 | /* Where long section names are supported, we allow them to be enabled |
||
388 | and disabled at runtime, so select an appropriate hook function for |
||
389 | _bfd_coff_set_long_section_names. */ |
||
390 | #define COFF_LONG_SECTION_NAMES_SETTER bfd_coff_set_long_section_names_allowed |
||
391 | #else /* !defined (COFF_LONG_SECTION_NAMES) */ |
||
392 | /* If long section names are not supported, this stub disallows any |
||
393 | attempt to enable them at run-time. */ |
||
394 | #define COFF_LONG_SECTION_NAMES_SETTER bfd_coff_set_long_section_names_disallowed |
||
395 | #endif /* defined (COFF_LONG_SECTION_NAMES) */ |
||
396 | |||
397 | /* Define a macro that can be used to initialise both the fields relating |
||
398 | to long section names in the backend data struct simultaneously. */ |
||
399 | #if COFF_ENABLE_LONG_SECTION_NAMES |
||
400 | #define COFF_DEFAULT_LONG_SECTION_NAMES (TRUE), COFF_LONG_SECTION_NAMES_SETTER |
||
401 | #else /* !COFF_ENABLE_LONG_SECTION_NAMES */ |
||
402 | #define COFF_DEFAULT_LONG_SECTION_NAMES (FALSE), COFF_LONG_SECTION_NAMES_SETTER |
||
403 | #endif /* COFF_ENABLE_LONG_SECTION_NAMES */ |
||
404 | |||
405 | #if defined (COFF_LONG_SECTION_NAMES) |
||
406 | static bfd_boolean bfd_coff_set_long_section_names_allowed |
||
407 | (bfd *, int); |
||
408 | #else /* !defined (COFF_LONG_SECTION_NAMES) */ |
||
409 | static bfd_boolean bfd_coff_set_long_section_names_disallowed |
||
410 | (bfd *, int); |
||
411 | #endif /* defined (COFF_LONG_SECTION_NAMES) */ |
||
412 | static long sec_to_styp_flags |
||
413 | (const char *, flagword); |
||
414 | static bfd_boolean styp_to_sec_flags |
||
415 | (bfd *, void *, const char *, asection *, flagword *); |
||
416 | static bfd_boolean coff_bad_format_hook |
||
417 | (bfd *, void *); |
||
418 | static void coff_set_custom_section_alignment |
||
419 | (bfd *, asection *, const struct coff_section_alignment_entry *, |
||
420 | const unsigned int); |
||
421 | static bfd_boolean coff_new_section_hook |
||
422 | (bfd *, asection *); |
||
423 | static bfd_boolean coff_set_arch_mach_hook |
||
424 | (bfd *, void *); |
||
425 | static bfd_boolean coff_write_relocs |
||
426 | (bfd *, int); |
||
427 | static bfd_boolean coff_set_flags |
||
428 | (bfd *, unsigned int *, unsigned short *); |
||
429 | static bfd_boolean coff_set_arch_mach |
||
430 | (bfd *, enum bfd_architecture, unsigned long) ATTRIBUTE_UNUSED; |
||
431 | static bfd_boolean coff_compute_section_file_positions |
||
432 | (bfd *); |
||
433 | static bfd_boolean coff_write_object_contents |
||
434 | (bfd *) ATTRIBUTE_UNUSED; |
||
435 | static bfd_boolean coff_set_section_contents |
||
436 | (bfd *, asection *, const void *, file_ptr, bfd_size_type); |
||
437 | static void * buy_and_read |
||
438 | (bfd *, file_ptr, bfd_size_type); |
||
439 | static bfd_boolean coff_slurp_line_table |
||
440 | (bfd *, asection *); |
||
441 | static bfd_boolean coff_slurp_symbol_table |
||
442 | (bfd *); |
||
443 | static enum coff_symbol_classification coff_classify_symbol |
||
444 | (bfd *, struct internal_syment *); |
||
445 | static bfd_boolean coff_slurp_reloc_table |
||
446 | (bfd *, asection *, asymbol **); |
||
447 | static long coff_canonicalize_reloc |
||
448 | (bfd *, asection *, arelent **, asymbol **); |
||
449 | #ifndef coff_mkobject_hook |
||
450 | static void * coff_mkobject_hook |
||
451 | (bfd *, void *, void *); |
||
452 | #endif |
||
453 | #ifdef COFF_WITH_PE |
||
454 | static flagword handle_COMDAT |
||
455 | (bfd *, flagword, void *, const char *, asection *); |
||
456 | #endif |
||
457 | #ifdef COFF_IMAGE_WITH_PE |
||
458 | static bfd_boolean coff_read_word |
||
459 | (bfd *, unsigned int *); |
||
460 | static unsigned int coff_compute_checksum |
||
461 | (bfd *); |
||
462 | static bfd_boolean coff_apply_checksum |
||
463 | (bfd *); |
||
464 | #endif |
||
465 | #ifdef TICOFF |
||
466 | static bfd_boolean ticoff0_bad_format_hook |
||
467 | (bfd *, void * ); |
||
468 | static bfd_boolean ticoff1_bad_format_hook |
||
469 | (bfd *, void * ); |
||
470 | #endif |
||
471 | |||
472 | /* void warning(); */ |
||
473 | |||
474 | #if defined (COFF_LONG_SECTION_NAMES) |
||
475 | static bfd_boolean |
||
476 | bfd_coff_set_long_section_names_allowed (bfd *abfd, int enable) |
||
477 | { |
||
478 | coff_backend_info (abfd)->_bfd_coff_long_section_names = enable; |
||
479 | return TRUE; |
||
480 | } |
||
481 | #else /* !defined (COFF_LONG_SECTION_NAMES) */ |
||
482 | static bfd_boolean |
||
483 | bfd_coff_set_long_section_names_disallowed (bfd *abfd, int enable) |
||
484 | { |
||
485 | (void) abfd; |
||
486 | (void) enable; |
||
487 | return FALSE; |
||
488 | } |
||
489 | #endif /* defined (COFF_LONG_SECTION_NAMES) */ |
||
490 | |||
491 | /* Return a word with STYP_* (scnhdr.s_flags) flags set to represent |
||
492 | the incoming SEC_* flags. The inverse of this function is |
||
493 | styp_to_sec_flags(). NOTE: If you add to/change this routine, you |
||
494 | should probably mirror the changes in styp_to_sec_flags(). */ |
||
495 | |||
496 | #ifndef COFF_WITH_PE |
||
497 | |||
498 | /* Macros for setting debugging flags. */ |
||
499 | |||
500 | #ifdef STYP_DEBUG |
||
501 | #define STYP_XCOFF_DEBUG STYP_DEBUG |
||
502 | #else |
||
503 | #define STYP_XCOFF_DEBUG STYP_INFO |
||
504 | #endif |
||
505 | |||
506 | #ifdef COFF_ALIGN_IN_S_FLAGS |
||
507 | #define STYP_DEBUG_INFO STYP_DSECT |
||
508 | #else |
||
509 | #define STYP_DEBUG_INFO STYP_INFO |
||
510 | #endif |
||
511 | |||
512 | static long |
||
513 | sec_to_styp_flags (const char *sec_name, flagword sec_flags) |
||
514 | { |
||
515 | long styp_flags = 0; |
||
516 | |||
517 | if (!strcmp (sec_name, _TEXT)) |
||
518 | { |
||
519 | styp_flags = STYP_TEXT; |
||
520 | } |
||
521 | else if (!strcmp (sec_name, _DATA)) |
||
522 | { |
||
523 | styp_flags = STYP_DATA; |
||
524 | } |
||
525 | else if (!strcmp (sec_name, _BSS)) |
||
526 | { |
||
527 | styp_flags = STYP_BSS; |
||
528 | #ifdef _COMMENT |
||
529 | } |
||
530 | else if (!strcmp (sec_name, _COMMENT)) |
||
531 | { |
||
532 | styp_flags = STYP_INFO; |
||
533 | #endif /* _COMMENT */ |
||
534 | #ifdef _LIB |
||
535 | } |
||
536 | else if (!strcmp (sec_name, _LIB)) |
||
537 | { |
||
538 | styp_flags = STYP_LIB; |
||
539 | #endif /* _LIB */ |
||
540 | #ifdef _LIT |
||
541 | } |
||
542 | else if (!strcmp (sec_name, _LIT)) |
||
543 | { |
||
544 | styp_flags = STYP_LIT; |
||
545 | #endif /* _LIT */ |
||
546 | } |
||
547 | else if (CONST_STRNEQ (sec_name, DOT_DEBUG) |
||
548 | || CONST_STRNEQ (sec_name, DOT_ZDEBUG)) |
||
549 | { |
||
550 | /* Handle the XCOFF debug section and DWARF2 debug sections. */ |
||
551 | if (!sec_name[6]) |
||
552 | styp_flags = STYP_XCOFF_DEBUG; |
||
553 | else |
||
554 | styp_flags = STYP_DEBUG_INFO; |
||
555 | } |
||
556 | else if (CONST_STRNEQ (sec_name, ".stab")) |
||
557 | { |
||
558 | styp_flags = STYP_DEBUG_INFO; |
||
559 | } |
||
560 | #ifdef COFF_LONG_SECTION_NAMES |
||
561 | else if (CONST_STRNEQ (sec_name, GNU_LINKONCE_WI) |
||
562 | || CONST_STRNEQ (sec_name, GNU_LINKONCE_WT)) |
||
563 | { |
||
564 | styp_flags = STYP_DEBUG_INFO; |
||
565 | } |
||
566 | #endif |
||
567 | #ifdef RS6000COFF_C |
||
568 | else if (!strcmp (sec_name, _PAD)) |
||
569 | { |
||
570 | styp_flags = STYP_PAD; |
||
571 | } |
||
572 | else if (!strcmp (sec_name, _LOADER)) |
||
573 | { |
||
574 | styp_flags = STYP_LOADER; |
||
575 | } |
||
576 | else if (!strcmp (sec_name, _EXCEPT)) |
||
577 | { |
||
578 | styp_flags = STYP_EXCEPT; |
||
579 | } |
||
580 | else if (!strcmp (sec_name, _TYPCHK)) |
||
581 | { |
||
582 | styp_flags = STYP_TYPCHK; |
||
583 | } |
||
584 | else if (sec_flags & SEC_DEBUGGING) |
||
585 | { |
||
586 | int i; |
||
587 | |||
588 | for (i = 0; i < XCOFF_DWSECT_NBR_NAMES; i++) |
||
589 | if (!strcmp (sec_name, xcoff_dwsect_names[i].name)) |
||
590 | { |
||
591 | styp_flags = STYP_DWARF | xcoff_dwsect_names[i].flag; |
||
592 | break; |
||
593 | } |
||
594 | } |
||
595 | #endif |
||
596 | /* Try and figure out what it should be */ |
||
597 | else if (sec_flags & SEC_CODE) |
||
598 | { |
||
599 | styp_flags = STYP_TEXT; |
||
600 | } |
||
601 | else if (sec_flags & SEC_DATA) |
||
602 | { |
||
603 | styp_flags = STYP_DATA; |
||
604 | } |
||
605 | else if (sec_flags & SEC_READONLY) |
||
606 | { |
||
607 | #ifdef STYP_LIT /* 29k readonly text/data section */ |
||
608 | styp_flags = STYP_LIT; |
||
609 | #else |
||
610 | styp_flags = STYP_TEXT; |
||
611 | #endif /* STYP_LIT */ |
||
612 | } |
||
613 | else if (sec_flags & SEC_LOAD) |
||
614 | { |
||
615 | styp_flags = STYP_TEXT; |
||
616 | } |
||
617 | else if (sec_flags & SEC_ALLOC) |
||
618 | { |
||
619 | styp_flags = STYP_BSS; |
||
620 | } |
||
621 | |||
622 | #ifdef STYP_CLINK |
||
623 | if (sec_flags & SEC_TIC54X_CLINK) |
||
624 | styp_flags |= STYP_CLINK; |
||
625 | #endif |
||
626 | |||
627 | #ifdef STYP_BLOCK |
||
628 | if (sec_flags & SEC_TIC54X_BLOCK) |
||
629 | styp_flags |= STYP_BLOCK; |
||
630 | #endif |
||
631 | |||
632 | #ifdef STYP_NOLOAD |
||
633 | if ((sec_flags & (SEC_NEVER_LOAD | SEC_COFF_SHARED_LIBRARY)) != 0) |
||
634 | styp_flags |= STYP_NOLOAD; |
||
635 | #endif |
||
636 | |||
637 | return styp_flags; |
||
638 | } |
||
639 | |||
640 | #else /* COFF_WITH_PE */ |
||
641 | |||
642 | /* The PE version; see above for the general comments. The non-PE |
||
643 | case seems to be more guessing, and breaks PE format; specifically, |
||
644 | .rdata is readonly, but it sure ain't text. Really, all this |
||
645 | should be set up properly in gas (or whatever assembler is in use), |
||
646 | and honor whatever objcopy/strip, etc. sent us as input. */ |
||
647 | |||
648 | static long |
||
649 | sec_to_styp_flags (const char *sec_name, flagword sec_flags) |
||
650 | { |
||
651 | long styp_flags = 0; |
||
652 | bfd_boolean is_dbg = FALSE; |
||
653 | |||
654 | if (CONST_STRNEQ (sec_name, DOT_DEBUG) |
||
655 | || CONST_STRNEQ (sec_name, DOT_ZDEBUG) |
||
656 | #ifdef COFF_LONG_SECTION_NAMES |
||
657 | || CONST_STRNEQ (sec_name, GNU_LINKONCE_WI) |
||
658 | || CONST_STRNEQ (sec_name, GNU_LINKONCE_WT) |
||
659 | #endif |
||
660 | || CONST_STRNEQ (sec_name, ".stab")) |
||
661 | is_dbg = TRUE; |
||
662 | |||
663 | /* caution: there are at least three groups of symbols that have |
||
664 | very similar bits and meanings: IMAGE_SCN*, SEC_*, and STYP_*. |
||
665 | SEC_* are the BFD internal flags, used for generic BFD |
||
666 | information. STYP_* are the COFF section flags which appear in |
||
667 | COFF files. IMAGE_SCN_* are the PE section flags which appear in |
||
668 | PE files. The STYP_* flags and the IMAGE_SCN_* flags overlap, |
||
669 | but there are more IMAGE_SCN_* flags. */ |
||
670 | |||
671 | /* FIXME: There is no gas syntax to specify the debug section flag. */ |
||
672 | if (is_dbg) |
||
673 | { |
||
674 | sec_flags &= (SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD |
||
675 | | SEC_LINK_DUPLICATES_SAME_CONTENTS |
||
676 | | SEC_LINK_DUPLICATES_SAME_SIZE); |
||
677 | sec_flags |= SEC_DEBUGGING | SEC_READONLY; |
||
678 | } |
||
679 | |||
680 | /* skip LOAD */ |
||
681 | /* READONLY later */ |
||
682 | /* skip RELOC */ |
||
683 | if ((sec_flags & SEC_CODE) != 0) |
||
684 | styp_flags |= IMAGE_SCN_CNT_CODE; |
||
685 | if ((sec_flags & (SEC_DATA | SEC_DEBUGGING)) != 0) |
||
686 | styp_flags |= IMAGE_SCN_CNT_INITIALIZED_DATA; |
||
687 | if ((sec_flags & SEC_ALLOC) != 0 && (sec_flags & SEC_LOAD) == 0) |
||
688 | styp_flags |= IMAGE_SCN_CNT_UNINITIALIZED_DATA; /* ==STYP_BSS */ |
||
689 | /* skip ROM */ |
||
690 | /* skip constRUCTOR */ |
||
691 | /* skip CONTENTS */ |
||
692 | if ((sec_flags & SEC_IS_COMMON) != 0) |
||
693 | styp_flags |= IMAGE_SCN_LNK_COMDAT; |
||
694 | if ((sec_flags & SEC_DEBUGGING) != 0) |
||
695 | styp_flags |= IMAGE_SCN_MEM_DISCARDABLE; |
||
696 | if ((sec_flags & SEC_EXCLUDE) != 0 && !is_dbg) |
||
697 | styp_flags |= IMAGE_SCN_LNK_REMOVE; |
||
698 | if ((sec_flags & SEC_NEVER_LOAD) != 0 && !is_dbg) |
||
699 | styp_flags |= IMAGE_SCN_LNK_REMOVE; |
||
700 | /* skip IN_MEMORY */ |
||
701 | /* skip SORT */ |
||
702 | if (sec_flags & SEC_LINK_ONCE) |
||
703 | styp_flags |= IMAGE_SCN_LNK_COMDAT; |
||
704 | if ((sec_flags |
||
705 | & (SEC_LINK_DUPLICATES_DISCARD | SEC_LINK_DUPLICATES_SAME_CONTENTS |
||
706 | | SEC_LINK_DUPLICATES_SAME_SIZE)) != 0) |
||
707 | styp_flags |= IMAGE_SCN_LNK_COMDAT; |
||
708 | |||
709 | /* skip LINKER_CREATED */ |
||
710 | |||
711 | if ((sec_flags & SEC_COFF_NOREAD) == 0) |
||
712 | styp_flags |= IMAGE_SCN_MEM_READ; /* Invert NOREAD for read. */ |
||
713 | if ((sec_flags & SEC_READONLY) == 0) |
||
714 | styp_flags |= IMAGE_SCN_MEM_WRITE; /* Invert READONLY for write. */ |
||
715 | if (sec_flags & SEC_CODE) |
||
716 | styp_flags |= IMAGE_SCN_MEM_EXECUTE; /* CODE->EXECUTE. */ |
||
717 | if (sec_flags & SEC_COFF_SHARED) |
||
718 | styp_flags |= IMAGE_SCN_MEM_SHARED; /* Shared remains meaningful. */ |
||
719 | |||
720 | return styp_flags; |
||
721 | } |
||
722 | |||
723 | #endif /* COFF_WITH_PE */ |
||
724 | |||
725 | /* Return a word with SEC_* flags set to represent the incoming STYP_* |
||
726 | flags (from scnhdr.s_flags). The inverse of this function is |
||
727 | sec_to_styp_flags(). NOTE: If you add to/change this routine, you |
||
728 | should probably mirror the changes in sec_to_styp_flags(). */ |
||
729 | |||
730 | #ifndef COFF_WITH_PE |
||
731 | |||
732 | static bfd_boolean |
||
733 | styp_to_sec_flags (bfd *abfd ATTRIBUTE_UNUSED, |
||
734 | void * hdr, |
||
735 | const char *name, |
||
736 | asection *section ATTRIBUTE_UNUSED, |
||
737 | flagword *flags_ptr) |
||
738 | { |
||
739 | struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr; |
||
740 | long styp_flags = internal_s->s_flags; |
||
741 | flagword sec_flags = 0; |
||
742 | |||
743 | #ifdef STYP_BLOCK |
||
744 | if (styp_flags & STYP_BLOCK) |
||
745 | sec_flags |= SEC_TIC54X_BLOCK; |
||
746 | #endif |
||
747 | |||
748 | #ifdef STYP_CLINK |
||
749 | if (styp_flags & STYP_CLINK) |
||
750 | sec_flags |= SEC_TIC54X_CLINK; |
||
751 | #endif |
||
752 | |||
753 | #ifdef STYP_NOLOAD |
||
754 | if (styp_flags & STYP_NOLOAD) |
||
755 | sec_flags |= SEC_NEVER_LOAD; |
||
756 | #endif /* STYP_NOLOAD */ |
||
757 | |||
758 | /* For 386 COFF, at least, an unloadable text or data section is |
||
759 | actually a shared library section. */ |
||
760 | if (styp_flags & STYP_TEXT) |
||
761 | { |
||
762 | if (sec_flags & SEC_NEVER_LOAD) |
||
763 | sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY; |
||
764 | else |
||
765 | sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; |
||
766 | } |
||
767 | else if (styp_flags & STYP_DATA) |
||
768 | { |
||
769 | if (sec_flags & SEC_NEVER_LOAD) |
||
770 | sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY; |
||
771 | else |
||
772 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; |
||
773 | } |
||
774 | else if (styp_flags & STYP_BSS) |
||
775 | { |
||
776 | #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY |
||
777 | if (sec_flags & SEC_NEVER_LOAD) |
||
778 | sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY; |
||
779 | else |
||
780 | #endif |
||
781 | sec_flags |= SEC_ALLOC; |
||
782 | } |
||
783 | else if (styp_flags & STYP_INFO) |
||
784 | { |
||
785 | /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is |
||
786 | defined. coff_compute_section_file_positions uses |
||
787 | COFF_PAGE_SIZE to ensure that the low order bits of the |
||
788 | section VMA and the file offset match. If we don't know |
||
789 | COFF_PAGE_SIZE, we can't ensure the correct correspondence, |
||
790 | and demand page loading of the file will fail. */ |
||
791 | #if defined (COFF_PAGE_SIZE) && !defined (COFF_ALIGN_IN_S_FLAGS) |
||
792 | sec_flags |= SEC_DEBUGGING; |
||
793 | #endif |
||
794 | } |
||
795 | else if (styp_flags & STYP_PAD) |
||
796 | sec_flags = 0; |
||
797 | #ifdef RS6000COFF_C |
||
798 | else if (styp_flags & STYP_EXCEPT) |
||
799 | sec_flags |= SEC_LOAD; |
||
800 | else if (styp_flags & STYP_LOADER) |
||
801 | sec_flags |= SEC_LOAD; |
||
802 | else if (styp_flags & STYP_TYPCHK) |
||
803 | sec_flags |= SEC_LOAD; |
||
804 | else if (styp_flags & STYP_DWARF) |
||
805 | sec_flags |= SEC_DEBUGGING; |
||
806 | #endif |
||
807 | else if (strcmp (name, _TEXT) == 0) |
||
808 | { |
||
809 | if (sec_flags & SEC_NEVER_LOAD) |
||
810 | sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY; |
||
811 | else |
||
812 | sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; |
||
813 | } |
||
814 | else if (strcmp (name, _DATA) == 0) |
||
815 | { |
||
816 | if (sec_flags & SEC_NEVER_LOAD) |
||
817 | sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY; |
||
818 | else |
||
819 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; |
||
820 | } |
||
821 | else if (strcmp (name, _BSS) == 0) |
||
822 | { |
||
823 | #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY |
||
824 | if (sec_flags & SEC_NEVER_LOAD) |
||
825 | sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY; |
||
826 | else |
||
827 | #endif |
||
828 | sec_flags |= SEC_ALLOC; |
||
829 | } |
||
830 | else if (CONST_STRNEQ (name, DOT_DEBUG) |
||
831 | || CONST_STRNEQ (name, DOT_ZDEBUG) |
||
832 | #ifdef _COMMENT |
||
833 | || strcmp (name, _COMMENT) == 0 |
||
834 | #endif |
||
835 | #ifdef COFF_LONG_SECTION_NAMES |
||
836 | || CONST_STRNEQ (name, GNU_LINKONCE_WI) |
||
837 | || CONST_STRNEQ (name, GNU_LINKONCE_WT) |
||
838 | #endif |
||
839 | || CONST_STRNEQ (name, ".stab")) |
||
840 | { |
||
841 | #ifdef COFF_PAGE_SIZE |
||
842 | sec_flags |= SEC_DEBUGGING; |
||
843 | #endif |
||
844 | } |
||
845 | #ifdef _LIB |
||
846 | else if (strcmp (name, _LIB) == 0) |
||
847 | ; |
||
848 | #endif |
||
849 | #ifdef _LIT |
||
850 | else if (strcmp (name, _LIT) == 0) |
||
851 | sec_flags = SEC_LOAD | SEC_ALLOC | SEC_READONLY; |
||
852 | #endif |
||
853 | else |
||
854 | sec_flags |= SEC_ALLOC | SEC_LOAD; |
||
855 | |||
856 | #ifdef STYP_LIT /* A29k readonly text/data section type. */ |
||
857 | if ((styp_flags & STYP_LIT) == STYP_LIT) |
||
858 | sec_flags = (SEC_LOAD | SEC_ALLOC | SEC_READONLY); |
||
859 | #endif /* STYP_LIT */ |
||
860 | |||
861 | #ifdef STYP_OTHER_LOAD /* Other loaded sections. */ |
||
862 | if (styp_flags & STYP_OTHER_LOAD) |
||
863 | sec_flags = (SEC_LOAD | SEC_ALLOC); |
||
864 | #endif /* STYP_SDATA */ |
||
865 | |||
866 | #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE) |
||
867 | /* As a GNU extension, if the name begins with .gnu.linkonce, we |
||
868 | only link a single copy of the section. This is used to support |
||
869 | g++. g++ will emit each template expansion in its own section. |
||
870 | The symbols will be defined as weak, so that multiple definitions |
||
871 | are permitted. The GNU linker extension is to actually discard |
||
872 | all but one of the sections. */ |
||
873 | if (CONST_STRNEQ (name, ".gnu.linkonce")) |
||
874 | sec_flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; |
||
875 | #endif |
||
876 | |||
877 | if (flags_ptr == NULL) |
||
878 | return FALSE; |
||
879 | |||
880 | * flags_ptr = sec_flags; |
||
881 | return TRUE; |
||
882 | } |
||
883 | |||
884 | #else /* COFF_WITH_PE */ |
||
885 | |||
886 | static flagword |
||
887 | handle_COMDAT (bfd * abfd, |
||
888 | flagword sec_flags, |
||
889 | void * hdr, |
||
890 | const char *name, |
||
891 | asection *section) |
||
892 | { |
||
893 | struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr; |
||
894 | bfd_byte *esymstart, *esym, *esymend; |
||
895 | int seen_state = 0; |
||
896 | char *target_name = NULL; |
||
897 | |||
898 | sec_flags |= SEC_LINK_ONCE; |
||
899 | |||
900 | /* Unfortunately, the PE format stores essential information in |
||
901 | the symbol table, of all places. We need to extract that |
||
902 | information now, so that objdump and the linker will know how |
||
903 | to handle the section without worrying about the symbols. We |
||
904 | can't call slurp_symtab, because the linker doesn't want the |
||
905 | swapped symbols. */ |
||
906 | |||
907 | /* COMDAT sections are special. The first symbol is the section |
||
908 | symbol, which tells what kind of COMDAT section it is. The |
||
909 | second symbol is the "comdat symbol" - the one with the |
||
910 | unique name. GNU uses the section symbol for the unique |
||
911 | name; MS uses ".text" for every comdat section. Sigh. - DJ */ |
||
912 | |||
913 | /* This is not mirrored in sec_to_styp_flags(), but there |
||
914 | doesn't seem to be a need to, either, and it would at best be |
||
915 | rather messy. */ |
||
916 | |||
917 | if (! _bfd_coff_get_external_symbols (abfd)) |
||
918 | return sec_flags; |
||
919 | |||
920 | esymstart = esym = (bfd_byte *) obj_coff_external_syms (abfd); |
||
921 | esymend = esym + obj_raw_syment_count (abfd) * bfd_coff_symesz (abfd); |
||
922 | |||
923 | while (esym < esymend) |
||
924 | { |
||
925 | struct internal_syment isym; |
||
926 | char buf[SYMNMLEN + 1]; |
||
927 | const char *symname; |
||
928 | |||
929 | bfd_coff_swap_sym_in (abfd, esym, & isym); |
||
930 | |||
931 | if (sizeof (internal_s->s_name) > SYMNMLEN) |
||
932 | { |
||
933 | /* This case implies that the matching |
||
934 | symbol name will be in the string table. */ |
||
935 | abort (); |
||
936 | } |
||
937 | |||
938 | if (isym.n_scnum == section->target_index) |
||
939 | { |
||
940 | /* According to the MSVC documentation, the first |
||
941 | TWO entries with the section # are both of |
||
942 | interest to us. The first one is the "section |
||
943 | symbol" (section name). The second is the comdat |
||
944 | symbol name. Here, we've found the first |
||
945 | qualifying entry; we distinguish it from the |
||
946 | second with a state flag. |
||
947 | |||
948 | In the case of gas-generated (at least until that |
||
949 | is fixed) .o files, it isn't necessarily the |
||
950 | second one. It may be some other later symbol. |
||
951 | |||
952 | Since gas also doesn't follow MS conventions and |
||
953 | emits the section similar to .text$ |
||
954 |
|
||
955 | distinguish the two as follows: |
||
956 | |||
957 | If the section name is simply a section name (no |
||
958 | $) we presume it's MS-generated, and look at |
||
959 | precisely the second symbol for the comdat name. |
||
960 | If the section name has a $, we assume it's |
||
961 | gas-generated, and look for |
||
962 | follows the $) as the comdat symbol. */ |
||
963 | |||
964 | /* All 3 branches use this. */ |
||
965 | symname = _bfd_coff_internal_syment_name (abfd, &isym, buf); |
||
966 | |||
967 | if (symname == NULL) |
||
968 | abort (); |
||
969 | |||
970 | switch (seen_state) |
||
971 | { |
||
972 | case 0: |
||
973 | { |
||
974 | /* The first time we've seen the symbol. */ |
||
975 | union internal_auxent aux; |
||
976 | |||
977 | /* If it isn't the stuff we're expecting, die; |
||
978 | The MS documentation is vague, but it |
||
979 | appears that the second entry serves BOTH |
||
980 | as the comdat symbol and the defining |
||
981 | symbol record (either C_STAT or C_EXT, |
||
982 | possibly with an aux entry with debug |
||
983 | information if it's a function.) It |
||
984 | appears the only way to find the second one |
||
985 | is to count. (On Intel, they appear to be |
||
986 | adjacent, but on Alpha, they have been |
||
987 | found separated.) |
||
988 | |||
989 | Here, we think we've found the first one, |
||
990 | but there's some checking we can do to be |
||
991 | sure. */ |
||
992 | |||
993 | if (! ((isym.n_sclass == C_STAT |
||
994 | || isym.n_sclass == C_EXT) |
||
995 | && BTYPE (isym.n_type) == T_NULL |
||
996 | && isym.n_value == 0)) |
||
997 | abort (); |
||
998 | |||
999 | /* FIXME LATER: MSVC generates section names |
||
1000 | like .text for comdats. Gas generates |
||
1001 | names like .text$foo__Fv (in the case of a |
||
1002 | function). See comment above for more. */ |
||
1003 | |||
1004 | if (isym.n_sclass == C_STAT && strcmp (name, symname) != 0) |
||
1005 | _bfd_error_handler (_("%B: warning: COMDAT symbol '%s' does not match section name '%s'"), |
||
1006 | abfd, symname, name); |
||
1007 | |||
1008 | seen_state = 1; |
||
1009 | |||
1010 | /* This is the section symbol. */ |
||
1011 | bfd_coff_swap_aux_in (abfd, (esym + bfd_coff_symesz (abfd)), |
||
1012 | isym.n_type, isym.n_sclass, |
||
1013 | 0, isym.n_numaux, & aux); |
||
1014 | |||
1015 | target_name = strchr (name, '$'); |
||
1016 | if (target_name != NULL) |
||
1017 | { |
||
1018 | /* Gas mode. */ |
||
1019 | seen_state = 2; |
||
1020 | /* Skip the `$'. */ |
||
1021 | target_name += 1; |
||
1022 | } |
||
1023 | |||
1024 | /* FIXME: Microsoft uses NODUPLICATES and |
||
1025 | ASSOCIATIVE, but gnu uses ANY and |
||
1026 | SAME_SIZE. Unfortunately, gnu doesn't do |
||
1027 | the comdat symbols right. So, until we can |
||
1028 | fix it to do the right thing, we are |
||
1029 | temporarily disabling comdats for the MS |
||
1030 | types (they're used in DLLs and C++, but we |
||
1031 | don't support *their* C++ libraries anyway |
||
1032 | - DJ. */ |
||
1033 | |||
1034 | /* Cygwin does not follow the MS style, and |
||
1035 | uses ANY and SAME_SIZE where NODUPLICATES |
||
1036 | and ASSOCIATIVE should be used. For |
||
1037 | Interix, we just do the right thing up |
||
1038 | front. */ |
||
1039 | |||
1040 | switch (aux.x_scn.x_comdat) |
||
1041 | { |
||
1042 | case IMAGE_COMDAT_SELECT_NODUPLICATES: |
||
1043 | #ifdef STRICT_PE_FORMAT |
||
1044 | sec_flags |= SEC_LINK_DUPLICATES_ONE_ONLY; |
||
1045 | #else |
||
1046 | sec_flags &= ~SEC_LINK_ONCE; |
||
1047 | #endif |
||
1048 | break; |
||
1049 | |||
1050 | case IMAGE_COMDAT_SELECT_ANY: |
||
1051 | sec_flags |= SEC_LINK_DUPLICATES_DISCARD; |
||
1052 | break; |
||
1053 | |||
1054 | case IMAGE_COMDAT_SELECT_SAME_SIZE: |
||
1055 | sec_flags |= SEC_LINK_DUPLICATES_SAME_SIZE; |
||
1056 | break; |
||
1057 | |||
1058 | case IMAGE_COMDAT_SELECT_EXACT_MATCH: |
||
1059 | /* Not yet fully implemented ??? */ |
||
1060 | sec_flags |= SEC_LINK_DUPLICATES_SAME_CONTENTS; |
||
1061 | break; |
||
1062 | |||
1063 | /* debug$S gets this case; other |
||
1064 | implications ??? */ |
||
1065 | |||
1066 | /* There may be no symbol... we'll search |
||
1067 | the whole table... Is this the right |
||
1068 | place to play this game? Or should we do |
||
1069 | it when reading it in. */ |
||
1070 | case IMAGE_COMDAT_SELECT_ASSOCIATIVE: |
||
1071 | #ifdef STRICT_PE_FORMAT |
||
1072 | /* FIXME: This is not currently implemented. */ |
||
1073 | sec_flags |= SEC_LINK_DUPLICATES_DISCARD; |
||
1074 | #else |
||
1075 | sec_flags &= ~SEC_LINK_ONCE; |
||
1076 | #endif |
||
1077 | break; |
||
1078 | |||
1079 | default: /* 0 means "no symbol" */ |
||
1080 | /* debug$F gets this case; other |
||
1081 | implications ??? */ |
||
1082 | sec_flags |= SEC_LINK_DUPLICATES_DISCARD; |
||
1083 | break; |
||
1084 | } |
||
1085 | } |
||
1086 | break; |
||
1087 | |||
1088 | case 2: |
||
1089 | /* Gas mode: the first matching on partial name. */ |
||
1090 | |||
1091 | #ifndef TARGET_UNDERSCORE |
||
1092 | #define TARGET_UNDERSCORE 0 |
||
1093 | #endif |
||
1094 | /* Is this the name we're looking for ? */ |
||
1095 | if (strcmp (target_name, |
||
1096 | symname + (TARGET_UNDERSCORE ? 1 : 0)) != 0) |
||
1097 | { |
||
1098 | /* Not the name we're looking for */ |
||
1099 | esym += (isym.n_numaux + 1) * bfd_coff_symesz (abfd); |
||
1100 | continue; |
||
1101 | } |
||
1102 | /* Fall through. */ |
||
1103 | case 1: |
||
1104 | /* MSVC mode: the lexically second symbol (or |
||
1105 | drop through from the above). */ |
||
1106 | { |
||
1107 | char *newname; |
||
1108 | bfd_size_type amt; |
||
1109 | |||
1110 | /* This must the second symbol with the |
||
1111 | section #. It is the actual symbol name. |
||
1112 | Intel puts the two adjacent, but Alpha (at |
||
1113 | least) spreads them out. */ |
||
1114 | |||
1115 | amt = sizeof (struct coff_comdat_info); |
||
1116 | coff_section_data (abfd, section)->comdat |
||
1117 | = (struct coff_comdat_info *) bfd_alloc (abfd, amt); |
||
1118 | if (coff_section_data (abfd, section)->comdat == NULL) |
||
1119 | abort (); |
||
1120 | |||
1121 | coff_section_data (abfd, section)->comdat->symbol = |
||
1122 | (esym - esymstart) / bfd_coff_symesz (abfd); |
||
1123 | |||
1124 | amt = strlen (symname) + 1; |
||
1125 | newname = (char *) bfd_alloc (abfd, amt); |
||
1126 | if (newname == NULL) |
||
1127 | abort (); |
||
1128 | |||
1129 | strcpy (newname, symname); |
||
1130 | coff_section_data (abfd, section)->comdat->name |
||
1131 | = newname; |
||
1132 | } |
||
1133 | |||
1134 | goto breakloop; |
||
1135 | } |
||
1136 | } |
||
1137 | |||
1138 | esym += (isym.n_numaux + 1) * bfd_coff_symesz (abfd); |
||
1139 | } |
||
1140 | |||
1141 | breakloop: |
||
1142 | return sec_flags; |
||
1143 | } |
||
1144 | |||
1145 | |||
1146 | /* The PE version; see above for the general comments. |
||
1147 | |||
1148 | Since to set the SEC_LINK_ONCE and associated flags, we have to |
||
1149 | look at the symbol table anyway, we return the symbol table index |
||
1150 | of the symbol being used as the COMDAT symbol. This is admittedly |
||
1151 | ugly, but there's really nowhere else that we have access to the |
||
1152 | required information. FIXME: Is the COMDAT symbol index used for |
||
1153 | any purpose other than objdump? */ |
||
1154 | |||
1155 | static bfd_boolean |
||
1156 | styp_to_sec_flags (bfd *abfd, |
||
1157 | void * hdr, |
||
1158 | const char *name, |
||
1159 | asection *section, |
||
1160 | flagword *flags_ptr) |
||
1161 | { |
||
1162 | struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr; |
||
1163 | long styp_flags = internal_s->s_flags; |
||
1164 | flagword sec_flags; |
||
1165 | bfd_boolean result = TRUE; |
||
1166 | bfd_boolean is_dbg = FALSE; |
||
1167 | |||
1168 | if (CONST_STRNEQ (name, DOT_DEBUG) |
||
1169 | || CONST_STRNEQ (name, DOT_ZDEBUG) |
||
1170 | #ifdef COFF_LONG_SECTION_NAMES |
||
1171 | || CONST_STRNEQ (name, GNU_LINKONCE_WI) |
||
1172 | || CONST_STRNEQ (name, GNU_LINKONCE_WT) |
||
1173 | #endif |
||
1174 | || CONST_STRNEQ (name, ".stab")) |
||
1175 | is_dbg = TRUE; |
||
1176 | /* Assume read only unless IMAGE_SCN_MEM_WRITE is specified. */ |
||
1177 | sec_flags = SEC_READONLY; |
||
1178 | |||
1179 | /* If section disallows read, then set the NOREAD flag. */ |
||
1180 | if ((styp_flags & IMAGE_SCN_MEM_READ) == 0) |
||
1181 | sec_flags |= SEC_COFF_NOREAD; |
||
1182 | |||
1183 | /* Process each flag bit in styp_flags in turn. */ |
||
1184 | while (styp_flags) |
||
1185 | { |
||
1186 | long flag = styp_flags & - styp_flags; |
||
1187 | char * unhandled = NULL; |
||
1188 | |||
1189 | styp_flags &= ~ flag; |
||
1190 | |||
1191 | /* We infer from the distinct read/write/execute bits the settings |
||
1192 | of some of the bfd flags; the actual values, should we need them, |
||
1193 | are also in pei_section_data (abfd, section)->pe_flags. */ |
||
1194 | |||
1195 | switch (flag) |
||
1196 | { |
||
1197 | case STYP_DSECT: |
||
1198 | unhandled = "STYP_DSECT"; |
||
1199 | break; |
||
1200 | case STYP_GROUP: |
||
1201 | unhandled = "STYP_GROUP"; |
||
1202 | break; |
||
1203 | case STYP_COPY: |
||
1204 | unhandled = "STYP_COPY"; |
||
1205 | break; |
||
1206 | case STYP_OVER: |
||
1207 | unhandled = "STYP_OVER"; |
||
1208 | break; |
||
1209 | #ifdef SEC_NEVER_LOAD |
||
1210 | case STYP_NOLOAD: |
||
1211 | sec_flags |= SEC_NEVER_LOAD; |
||
1212 | break; |
||
1213 | #endif |
||
1214 | case IMAGE_SCN_MEM_READ: |
||
1215 | sec_flags &= ~SEC_COFF_NOREAD; |
||
1216 | break; |
||
1217 | case IMAGE_SCN_TYPE_NO_PAD: |
||
1218 | /* Skip. */ |
||
1219 | break; |
||
1220 | case IMAGE_SCN_LNK_OTHER: |
||
1221 | unhandled = "IMAGE_SCN_LNK_OTHER"; |
||
1222 | break; |
||
1223 | case IMAGE_SCN_MEM_NOT_CACHED: |
||
1224 | unhandled = "IMAGE_SCN_MEM_NOT_CACHED"; |
||
1225 | break; |
||
1226 | case IMAGE_SCN_MEM_NOT_PAGED: |
||
1227 | /* Generate a warning message rather using the 'unhandled' |
||
1228 | variable as this will allow some .sys files generate by |
||
1229 | other toolchains to be processed. See bugzilla issue 196. */ |
||
1230 | _bfd_error_handler (_("%B: Warning: Ignoring section flag IMAGE_SCN_MEM_NOT_PAGED in section %s"), |
||
1231 | abfd, name); |
||
1232 | break; |
||
1233 | case IMAGE_SCN_MEM_EXECUTE: |
||
1234 | sec_flags |= SEC_CODE; |
||
1235 | break; |
||
1236 | case IMAGE_SCN_MEM_WRITE: |
||
1237 | sec_flags &= ~ SEC_READONLY; |
||
1238 | break; |
||
1239 | case IMAGE_SCN_MEM_DISCARDABLE: |
||
1240 | /* The MS PE spec says that debug sections are DISCARDABLE, |
||
1241 | but the presence of a DISCARDABLE flag does not necessarily |
||
1242 | mean that a given section contains debug information. Thus |
||
1243 | we only set the SEC_DEBUGGING flag on sections that we |
||
1244 | recognise as containing debug information. */ |
||
1245 | if (is_dbg |
||
1246 | #ifdef _COMMENT |
||
1247 | || strcmp (name, _COMMENT) == 0 |
||
1248 | #endif |
||
1249 | ) |
||
1250 | { |
||
1251 | sec_flags |= SEC_DEBUGGING | SEC_READONLY; |
||
1252 | } |
||
1253 | break; |
||
1254 | case IMAGE_SCN_MEM_SHARED: |
||
1255 | sec_flags |= SEC_COFF_SHARED; |
||
1256 | break; |
||
1257 | case IMAGE_SCN_LNK_REMOVE: |
||
1258 | if (!is_dbg) |
||
1259 | sec_flags |= SEC_EXCLUDE; |
||
1260 | break; |
||
1261 | case IMAGE_SCN_CNT_CODE: |
||
1262 | sec_flags |= SEC_CODE | SEC_ALLOC | SEC_LOAD; |
||
1263 | break; |
||
1264 | case IMAGE_SCN_CNT_INITIALIZED_DATA: |
||
1265 | if (is_dbg) |
||
1266 | sec_flags |= SEC_DEBUGGING; |
||
1267 | else |
||
1268 | sec_flags |= SEC_DATA | SEC_ALLOC | SEC_LOAD; |
||
1269 | break; |
||
1270 | case IMAGE_SCN_CNT_UNINITIALIZED_DATA: |
||
1271 | sec_flags |= SEC_ALLOC; |
||
1272 | break; |
||
1273 | case IMAGE_SCN_LNK_INFO: |
||
1274 | /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is |
||
1275 | defined. coff_compute_section_file_positions uses |
||
1276 | COFF_PAGE_SIZE to ensure that the low order bits of the |
||
1277 | section VMA and the file offset match. If we don't know |
||
1278 | COFF_PAGE_SIZE, we can't ensure the correct correspondence, |
||
1279 | and demand page loading of the file will fail. */ |
||
1280 | #ifdef COFF_PAGE_SIZE |
||
1281 | sec_flags |= SEC_DEBUGGING; |
||
1282 | #endif |
||
1283 | break; |
||
1284 | case IMAGE_SCN_LNK_COMDAT: |
||
1285 | /* COMDAT gets very special treatment. */ |
||
1286 | sec_flags = handle_COMDAT (abfd, sec_flags, hdr, name, section); |
||
1287 | break; |
||
1288 | default: |
||
1289 | /* Silently ignore for now. */ |
||
1290 | break; |
||
1291 | } |
||
1292 | |||
1293 | /* If the section flag was not handled, report it here. */ |
||
1294 | if (unhandled != NULL) |
||
1295 | { |
||
1296 | (*_bfd_error_handler) |
||
1297 | (_("%B (%s): Section flag %s (0x%x) ignored"), |
||
1298 | abfd, name, unhandled, flag); |
||
1299 | result = FALSE; |
||
1300 | } |
||
1301 | } |
||
1302 | |||
1303 | #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE) |
||
1304 | /* As a GNU extension, if the name begins with .gnu.linkonce, we |
||
1305 | only link a single copy of the section. This is used to support |
||
1306 | g++. g++ will emit each template expansion in its own section. |
||
1307 | The symbols will be defined as weak, so that multiple definitions |
||
1308 | are permitted. The GNU linker extension is to actually discard |
||
1309 | all but one of the sections. */ |
||
1310 | if (CONST_STRNEQ (name, ".gnu.linkonce")) |
||
1311 | sec_flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; |
||
1312 | #endif |
||
1313 | |||
1314 | if (flags_ptr) |
||
1315 | * flags_ptr = sec_flags; |
||
1316 | |||
1317 | return result; |
||
1318 | } |
||
1319 | |||
1320 | #endif /* COFF_WITH_PE */ |
||
1321 | |||
1322 | #define get_index(symbol) ((symbol)->udata.i) |
||
1323 | |||
1324 | /* |
||
1325 | INTERNAL_DEFINITION |
||
1326 | bfd_coff_backend_data |
||
1327 | |||
1328 | CODE_FRAGMENT |
||
1329 | |||
1330 | .{* COFF symbol classifications. *} |
||
1331 | . |
||
1332 | .enum coff_symbol_classification |
||
1333 | .{ |
||
1334 | . {* Global symbol. *} |
||
1335 | . COFF_SYMBOL_GLOBAL, |
||
1336 | . {* Common symbol. *} |
||
1337 | . COFF_SYMBOL_COMMON, |
||
1338 | . {* Undefined symbol. *} |
||
1339 | . COFF_SYMBOL_UNDEFINED, |
||
1340 | . {* Local symbol. *} |
||
1341 | . COFF_SYMBOL_LOCAL, |
||
1342 | . {* PE section symbol. *} |
||
1343 | . COFF_SYMBOL_PE_SECTION |
||
1344 | .}; |
||
1345 | . |
||
1346 | Special entry points for gdb to swap in coff symbol table parts: |
||
1347 | .typedef struct |
||
1348 | .{ |
||
1349 | . void (*_bfd_coff_swap_aux_in) |
||
1350 | . (bfd *, void *, int, int, int, int, void *); |
||
1351 | . |
||
1352 | . void (*_bfd_coff_swap_sym_in) |
||
1353 | . (bfd *, void *, void *); |
||
1354 | . |
||
1355 | . void (*_bfd_coff_swap_lineno_in) |
||
1356 | . (bfd *, void *, void *); |
||
1357 | . |
||
1358 | . unsigned int (*_bfd_coff_swap_aux_out) |
||
1359 | . (bfd *, void *, int, int, int, int, void *); |
||
1360 | . |
||
1361 | . unsigned int (*_bfd_coff_swap_sym_out) |
||
1362 | . (bfd *, void *, void *); |
||
1363 | . |
||
1364 | . unsigned int (*_bfd_coff_swap_lineno_out) |
||
1365 | . (bfd *, void *, void *); |
||
1366 | . |
||
1367 | . unsigned int (*_bfd_coff_swap_reloc_out) |
||
1368 | . (bfd *, void *, void *); |
||
1369 | . |
||
1370 | . unsigned int (*_bfd_coff_swap_filehdr_out) |
||
1371 | . (bfd *, void *, void *); |
||
1372 | . |
||
1373 | . unsigned int (*_bfd_coff_swap_aouthdr_out) |
||
1374 | . (bfd *, void *, void *); |
||
1375 | . |
||
1376 | . unsigned int (*_bfd_coff_swap_scnhdr_out) |
||
1377 | . (bfd *, void *, void *); |
||
1378 | . |
||
1379 | . unsigned int _bfd_filhsz; |
||
1380 | . unsigned int _bfd_aoutsz; |
||
1381 | . unsigned int _bfd_scnhsz; |
||
1382 | . unsigned int _bfd_symesz; |
||
1383 | . unsigned int _bfd_auxesz; |
||
1384 | . unsigned int _bfd_relsz; |
||
1385 | . unsigned int _bfd_linesz; |
||
1386 | . unsigned int _bfd_filnmlen; |
||
1387 | . bfd_boolean _bfd_coff_long_filenames; |
||
1388 | . |
||
1389 | . bfd_boolean _bfd_coff_long_section_names; |
||
1390 | . bfd_boolean (*_bfd_coff_set_long_section_names) |
||
1391 | . (bfd *, int); |
||
1392 | . |
||
1393 | . unsigned int _bfd_coff_default_section_alignment_power; |
||
1394 | . bfd_boolean _bfd_coff_force_symnames_in_strings; |
||
1395 | . unsigned int _bfd_coff_debug_string_prefix_length; |
||
1396 | . |
||
1397 | . void (*_bfd_coff_swap_filehdr_in) |
||
1398 | . (bfd *, void *, void *); |
||
1399 | . |
||
1400 | . void (*_bfd_coff_swap_aouthdr_in) |
||
1401 | . (bfd *, void *, void *); |
||
1402 | . |
||
1403 | . void (*_bfd_coff_swap_scnhdr_in) |
||
1404 | . (bfd *, void *, void *); |
||
1405 | . |
||
1406 | . void (*_bfd_coff_swap_reloc_in) |
||
1407 | . (bfd *abfd, void *, void *); |
||
1408 | . |
||
1409 | . bfd_boolean (*_bfd_coff_bad_format_hook) |
||
1410 | . (bfd *, void *); |
||
1411 | . |
||
1412 | . bfd_boolean (*_bfd_coff_set_arch_mach_hook) |
||
1413 | . (bfd *, void *); |
||
1414 | . |
||
1415 | . void * (*_bfd_coff_mkobject_hook) |
||
1416 | . (bfd *, void *, void *); |
||
1417 | . |
||
1418 | . bfd_boolean (*_bfd_styp_to_sec_flags_hook) |
||
1419 | . (bfd *, void *, const char *, asection *, flagword *); |
||
1420 | . |
||
1421 | . void (*_bfd_set_alignment_hook) |
||
1422 | . (bfd *, asection *, void *); |
||
1423 | . |
||
1424 | . bfd_boolean (*_bfd_coff_slurp_symbol_table) |
||
1425 | . (bfd *); |
||
1426 | . |
||
1427 | . bfd_boolean (*_bfd_coff_symname_in_debug) |
||
1428 | . (bfd *, struct internal_syment *); |
||
1429 | . |
||
1430 | . bfd_boolean (*_bfd_coff_pointerize_aux_hook) |
||
1431 | . (bfd *, combined_entry_type *, combined_entry_type *, |
||
1432 | . unsigned int, combined_entry_type *); |
||
1433 | . |
||
1434 | . bfd_boolean (*_bfd_coff_print_aux) |
||
1435 | . (bfd *, FILE *, combined_entry_type *, combined_entry_type *, |
||
1436 | . combined_entry_type *, unsigned int); |
||
1437 | . |
||
1438 | . void (*_bfd_coff_reloc16_extra_cases) |
||
1439 | . (bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *, |
||
1440 | . bfd_byte *, unsigned int *, unsigned int *); |
||
1441 | . |
||
1442 | . int (*_bfd_coff_reloc16_estimate) |
||
1443 | . (bfd *, asection *, arelent *, unsigned int, |
||
1444 | . struct bfd_link_info *); |
||
1445 | . |
||
1446 | . enum coff_symbol_classification (*_bfd_coff_classify_symbol) |
||
1447 | . (bfd *, struct internal_syment *); |
||
1448 | . |
||
1449 | . bfd_boolean (*_bfd_coff_compute_section_file_positions) |
||
1450 | . (bfd *); |
||
1451 | . |
||
1452 | . bfd_boolean (*_bfd_coff_start_final_link) |
||
1453 | . (bfd *, struct bfd_link_info *); |
||
1454 | . |
||
1455 | . bfd_boolean (*_bfd_coff_relocate_section) |
||
1456 | . (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, |
||
1457 | . struct internal_reloc *, struct internal_syment *, asection **); |
||
1458 | . |
||
1459 | . reloc_howto_type *(*_bfd_coff_rtype_to_howto) |
||
1460 | . (bfd *, asection *, struct internal_reloc *, |
||
1461 | . struct coff_link_hash_entry *, struct internal_syment *, |
||
1462 | . bfd_vma *); |
||
1463 | . |
||
1464 | . bfd_boolean (*_bfd_coff_adjust_symndx) |
||
1465 | . (bfd *, struct bfd_link_info *, bfd *, asection *, |
||
1466 | . struct internal_reloc *, bfd_boolean *); |
||
1467 | . |
||
1468 | . bfd_boolean (*_bfd_coff_link_add_one_symbol) |
||
1469 | . (struct bfd_link_info *, bfd *, const char *, flagword, |
||
1470 | . asection *, bfd_vma, const char *, bfd_boolean, bfd_boolean, |
||
1471 | . struct bfd_link_hash_entry **); |
||
1472 | . |
||
1473 | . bfd_boolean (*_bfd_coff_link_output_has_begun) |
||
1474 | . (bfd *, struct coff_final_link_info *); |
||
1475 | . |
||
1476 | . bfd_boolean (*_bfd_coff_final_link_postscript) |
||
1477 | . (bfd *, struct coff_final_link_info *); |
||
1478 | . |
||
1479 | . bfd_boolean (*_bfd_coff_print_pdata) |
||
1480 | . (bfd *, void *); |
||
1481 | . |
||
1482 | .} bfd_coff_backend_data; |
||
1483 | . |
||
1484 | .#define coff_backend_info(abfd) \ |
||
1485 | . ((bfd_coff_backend_data *) (abfd)->xvec->backend_data) |
||
1486 | . |
||
1487 | .#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \ |
||
1488 | . ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i)) |
||
1489 | . |
||
1490 | .#define bfd_coff_swap_sym_in(a,e,i) \ |
||
1491 | . ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i)) |
||
1492 | . |
||
1493 | .#define bfd_coff_swap_lineno_in(a,e,i) \ |
||
1494 | . ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i)) |
||
1495 | . |
||
1496 | .#define bfd_coff_swap_reloc_out(abfd, i, o) \ |
||
1497 | . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o)) |
||
1498 | . |
||
1499 | .#define bfd_coff_swap_lineno_out(abfd, i, o) \ |
||
1500 | . ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o)) |
||
1501 | . |
||
1502 | .#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \ |
||
1503 | . ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o)) |
||
1504 | . |
||
1505 | .#define bfd_coff_swap_sym_out(abfd, i,o) \ |
||
1506 | . ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o)) |
||
1507 | . |
||
1508 | .#define bfd_coff_swap_scnhdr_out(abfd, i,o) \ |
||
1509 | . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o)) |
||
1510 | . |
||
1511 | .#define bfd_coff_swap_filehdr_out(abfd, i,o) \ |
||
1512 | . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o)) |
||
1513 | . |
||
1514 | .#define bfd_coff_swap_aouthdr_out(abfd, i,o) \ |
||
1515 | . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o)) |
||
1516 | . |
||
1517 | .#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz) |
||
1518 | .#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz) |
||
1519 | .#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz) |
||
1520 | .#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz) |
||
1521 | .#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz) |
||
1522 | .#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz) |
||
1523 | .#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz) |
||
1524 | .#define bfd_coff_filnmlen(abfd) (coff_backend_info (abfd)->_bfd_filnmlen) |
||
1525 | .#define bfd_coff_long_filenames(abfd) \ |
||
1526 | . (coff_backend_info (abfd)->_bfd_coff_long_filenames) |
||
1527 | .#define bfd_coff_long_section_names(abfd) \ |
||
1528 | . (coff_backend_info (abfd)->_bfd_coff_long_section_names) |
||
1529 | .#define bfd_coff_set_long_section_names(abfd, enable) \ |
||
1530 | . ((coff_backend_info (abfd)->_bfd_coff_set_long_section_names) (abfd, enable)) |
||
1531 | .#define bfd_coff_default_section_alignment_power(abfd) \ |
||
1532 | . (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power) |
||
1533 | .#define bfd_coff_swap_filehdr_in(abfd, i,o) \ |
||
1534 | . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o)) |
||
1535 | . |
||
1536 | .#define bfd_coff_swap_aouthdr_in(abfd, i,o) \ |
||
1537 | . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o)) |
||
1538 | . |
||
1539 | .#define bfd_coff_swap_scnhdr_in(abfd, i,o) \ |
||
1540 | . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o)) |
||
1541 | . |
||
1542 | .#define bfd_coff_swap_reloc_in(abfd, i, o) \ |
||
1543 | . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o)) |
||
1544 | . |
||
1545 | .#define bfd_coff_bad_format_hook(abfd, filehdr) \ |
||
1546 | . ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr)) |
||
1547 | . |
||
1548 | .#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\ |
||
1549 | . ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr)) |
||
1550 | .#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\ |
||
1551 | . ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook)\ |
||
1552 | . (abfd, filehdr, aouthdr)) |
||
1553 | . |
||
1554 | .#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section, flags_ptr)\ |
||
1555 | . ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\ |
||
1556 | . (abfd, scnhdr, name, section, flags_ptr)) |
||
1557 | . |
||
1558 | .#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\ |
||
1559 | . ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr)) |
||
1560 | . |
||
1561 | .#define bfd_coff_slurp_symbol_table(abfd)\ |
||
1562 | . ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd)) |
||
1563 | . |
||
1564 | .#define bfd_coff_symname_in_debug(abfd, sym)\ |
||
1565 | . ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym)) |
||
1566 | . |
||
1567 | .#define bfd_coff_force_symnames_in_strings(abfd)\ |
||
1568 | . (coff_backend_info (abfd)->_bfd_coff_force_symnames_in_strings) |
||
1569 | . |
||
1570 | .#define bfd_coff_debug_string_prefix_length(abfd)\ |
||
1571 | . (coff_backend_info (abfd)->_bfd_coff_debug_string_prefix_length) |
||
1572 | . |
||
1573 | .#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\ |
||
1574 | . ((coff_backend_info (abfd)->_bfd_coff_print_aux)\ |
||
1575 | . (abfd, file, base, symbol, aux, indaux)) |
||
1576 | . |
||
1577 | .#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order,\ |
||
1578 | . reloc, data, src_ptr, dst_ptr)\ |
||
1579 | . ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\ |
||
1580 | . (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)) |
||
1581 | . |
||
1582 | .#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\ |
||
1583 | . ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\ |
||
1584 | . (abfd, section, reloc, shrink, link_info)) |
||
1585 | . |
||
1586 | .#define bfd_coff_classify_symbol(abfd, sym)\ |
||
1587 | . ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\ |
||
1588 | . (abfd, sym)) |
||
1589 | . |
||
1590 | .#define bfd_coff_compute_section_file_positions(abfd)\ |
||
1591 | . ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\ |
||
1592 | . (abfd)) |
||
1593 | . |
||
1594 | .#define bfd_coff_start_final_link(obfd, info)\ |
||
1595 | . ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\ |
||
1596 | . (obfd, info)) |
||
1597 | .#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\ |
||
1598 | . ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\ |
||
1599 | . (obfd, info, ibfd, o, con, rel, isyms, secs)) |
||
1600 | .#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\ |
||
1601 | . ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\ |
||
1602 | . (abfd, sec, rel, h, sym, addendp)) |
||
1603 | .#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\ |
||
1604 | . ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\ |
||
1605 | . (obfd, info, ibfd, sec, rel, adjustedp)) |
||
1606 | .#define bfd_coff_link_add_one_symbol(info, abfd, name, flags, section,\ |
||
1607 | . value, string, cp, coll, hashp)\ |
||
1608 | . ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\ |
||
1609 | . (info, abfd, name, flags, section, value, string, cp, coll, hashp)) |
||
1610 | . |
||
1611 | .#define bfd_coff_link_output_has_begun(a,p) \ |
||
1612 | . ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a, p)) |
||
1613 | .#define bfd_coff_final_link_postscript(a,p) \ |
||
1614 | . ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a, p)) |
||
1615 | . |
||
1616 | .#define bfd_coff_have_print_pdata(a) \ |
||
1617 | . (coff_backend_info (a)->_bfd_coff_print_pdata) |
||
1618 | .#define bfd_coff_print_pdata(a,p) \ |
||
1619 | . ((coff_backend_info (a)->_bfd_coff_print_pdata) (a, p)) |
||
1620 | . |
||
1621 | .{* Macro: Returns true if the bfd is a PE executable as opposed to a |
||
1622 | . PE object file. *} |
||
1623 | .#define bfd_pei_p(abfd) \ |
||
1624 | . (CONST_STRNEQ ((abfd)->xvec->name, "pei-")) |
||
1625 | */ |
||
1626 | |||
1627 | /* See whether the magic number matches. */ |
||
1628 | |||
1629 | static bfd_boolean |
||
1630 | coff_bad_format_hook (bfd * abfd ATTRIBUTE_UNUSED, void * filehdr) |
||
1631 | { |
||
1632 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; |
||
1633 | |||
1634 | if (BADMAG (*internal_f)) |
||
1635 | return FALSE; |
||
1636 | |||
1637 | /* If the optional header is NULL or not the correct size then |
||
1638 | quit; the only difference I can see between m88k dgux headers (MC88DMAGIC) |
||
1639 | and Intel 960 readwrite headers (I960WRMAGIC) is that the |
||
1640 | optional header is of a different size. |
||
1641 | |||
1642 | But the mips keeps extra stuff in it's opthdr, so dont check |
||
1643 | when doing that. */ |
||
1644 | |||
1645 | #if defined(M88) || defined(I960) |
||
1646 | if (internal_f->f_opthdr != 0 && bfd_coff_aoutsz (abfd) != internal_f->f_opthdr) |
||
1647 | return FALSE; |
||
1648 | #endif |
||
1649 | |||
1650 | return TRUE; |
||
1651 | } |
||
1652 | |||
1653 | #ifdef TICOFF |
||
1654 | static bfd_boolean |
||
1655 | ticoff0_bad_format_hook (bfd *abfd ATTRIBUTE_UNUSED, void * filehdr) |
||
1656 | { |
||
1657 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; |
||
1658 | |||
1659 | if (COFF0_BADMAG (*internal_f)) |
||
1660 | return FALSE; |
||
1661 | |||
1662 | return TRUE; |
||
1663 | } |
||
1664 | #endif |
||
1665 | |||
1666 | #ifdef TICOFF |
||
1667 | static bfd_boolean |
||
1668 | ticoff1_bad_format_hook (bfd *abfd ATTRIBUTE_UNUSED, void * filehdr) |
||
1669 | { |
||
1670 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; |
||
1671 | |||
1672 | if (COFF1_BADMAG (*internal_f)) |
||
1673 | return FALSE; |
||
1674 | |||
1675 | return TRUE; |
||
1676 | } |
||
1677 | #endif |
||
1678 | |||
1679 | /* Check whether this section uses an alignment other than the |
||
1680 | default. */ |
||
1681 | |||
1682 | static void |
||
1683 | coff_set_custom_section_alignment (bfd *abfd ATTRIBUTE_UNUSED, |
||
1684 | asection *section, |
||
1685 | const struct coff_section_alignment_entry *alignment_table, |
||
1686 | const unsigned int table_size) |
||
1687 | { |
||
1688 | const unsigned int default_alignment = COFF_DEFAULT_SECTION_ALIGNMENT_POWER; |
||
1689 | unsigned int i; |
||
1690 | |||
1691 | for (i = 0; i < table_size; ++i) |
||
1692 | { |
||
1693 | const char *secname = bfd_get_section_name (abfd, section); |
||
1694 | |||
1695 | if (alignment_table[i].comparison_length == (unsigned int) -1 |
||
1696 | ? strcmp (alignment_table[i].name, secname) == 0 |
||
1697 | : strncmp (alignment_table[i].name, secname, |
||
1698 | alignment_table[i].comparison_length) == 0) |
||
1699 | break; |
||
1700 | } |
||
1701 | if (i >= table_size) |
||
1702 | return; |
||
1703 | |||
1704 | if (alignment_table[i].default_alignment_min != COFF_ALIGNMENT_FIELD_EMPTY |
||
1705 | && default_alignment < alignment_table[i].default_alignment_min) |
||
1706 | return; |
||
1707 | |||
1708 | if (alignment_table[i].default_alignment_max != COFF_ALIGNMENT_FIELD_EMPTY |
||
1709 | #if COFF_DEFAULT_SECTION_ALIGNMENT_POWER != 0 |
||
1710 | && default_alignment > alignment_table[i].default_alignment_max |
||
1711 | #endif |
||
1712 | ) |
||
1713 | return; |
||
1714 | |||
1715 | section->alignment_power = alignment_table[i].alignment_power; |
||
1716 | } |
||
1717 | |||
1718 | /* Custom section alignment records. */ |
||
1719 | |||
1720 | static const struct coff_section_alignment_entry |
||
1721 | coff_section_alignment_table[] = |
||
1722 | { |
||
1723 | #ifdef COFF_SECTION_ALIGNMENT_ENTRIES |
||
1724 | COFF_SECTION_ALIGNMENT_ENTRIES, |
||
1725 | #endif |
||
1726 | /* There must not be any gaps between .stabstr sections. */ |
||
1727 | { COFF_SECTION_NAME_PARTIAL_MATCH (".stabstr"), |
||
1728 | 1, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, |
||
1729 | /* The .stab section must be aligned to 2**2 at most, to avoid gaps. */ |
||
1730 | { COFF_SECTION_NAME_PARTIAL_MATCH (".stab"), |
||
1731 | 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, |
||
1732 | /* Similarly for the .ctors and .dtors sections. */ |
||
1733 | { COFF_SECTION_NAME_EXACT_MATCH (".ctors"), |
||
1734 | 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, |
||
1735 | { COFF_SECTION_NAME_EXACT_MATCH (".dtors"), |
||
1736 | 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 } |
||
1737 | }; |
||
1738 | |||
1739 | static const unsigned int coff_section_alignment_table_size = |
||
1740 | sizeof coff_section_alignment_table / sizeof coff_section_alignment_table[0]; |
||
1741 | |||
1742 | /* Initialize a section structure with information peculiar to this |
||
1743 | particular implementation of COFF. */ |
||
1744 | |||
1745 | static bfd_boolean |
||
1746 | coff_new_section_hook (bfd * abfd, asection * section) |
||
1747 | { |
||
1748 | combined_entry_type *native; |
||
1749 | bfd_size_type amt; |
||
1750 | unsigned char sclass = C_STAT; |
||
1751 | |||
1752 | section->alignment_power = COFF_DEFAULT_SECTION_ALIGNMENT_POWER; |
||
1753 | |||
1754 | #ifdef RS6000COFF_C |
||
1755 | if (bfd_xcoff_text_align_power (abfd) != 0 |
||
1756 | && strcmp (bfd_get_section_name (abfd, section), ".text") == 0) |
||
1757 | section->alignment_power = bfd_xcoff_text_align_power (abfd); |
||
1758 | else if (bfd_xcoff_data_align_power (abfd) != 0 |
||
1759 | && strcmp (bfd_get_section_name (abfd, section), ".data") == 0) |
||
1760 | section->alignment_power = bfd_xcoff_data_align_power (abfd); |
||
1761 | else |
||
1762 | { |
||
1763 | int i; |
||
1764 | |||
1765 | for (i = 0; i < XCOFF_DWSECT_NBR_NAMES; i++) |
||
1766 | if (strcmp (bfd_get_section_name (abfd, section), |
||
1767 | xcoff_dwsect_names[i].name) == 0) |
||
1768 | { |
||
1769 | section->alignment_power = 0; |
||
1770 | sclass = C_DWARF; |
||
1771 | break; |
||
1772 | } |
||
1773 | } |
||
1774 | #endif |
||
1775 | |||
1776 | /* Set up the section symbol. */ |
||
1777 | if (!_bfd_generic_new_section_hook (abfd, section)) |
||
1778 | return FALSE; |
||
1779 | |||
1780 | /* Allocate aux records for section symbols, to store size and |
||
1781 | related info. |
||
1782 | |||
1783 | @@ The 10 is a guess at a plausible maximum number of aux entries |
||
1784 | (but shouldn't be a constant). */ |
||
1785 | amt = sizeof (combined_entry_type) * 10; |
||
1786 | native = (combined_entry_type *) bfd_zalloc (abfd, amt); |
||
1787 | if (native == NULL) |
||
1788 | return FALSE; |
||
1789 | |||
1790 | /* We don't need to set up n_name, n_value, or n_scnum in the native |
||
1791 | symbol information, since they'll be overridden by the BFD symbol |
||
1792 | anyhow. However, we do need to set the type and storage class, |
||
1793 | in case this symbol winds up getting written out. The value 0 |
||
1794 | for n_numaux is already correct. */ |
||
1795 | |||
1796 | native->u.syment.n_type = T_NULL; |
||
1797 | native->u.syment.n_sclass = sclass; |
||
1798 | |||
1799 | coffsymbol (section->symbol)->native = native; |
||
1800 | |||
1801 | coff_set_custom_section_alignment (abfd, section, |
||
1802 | coff_section_alignment_table, |
||
1803 | coff_section_alignment_table_size); |
||
1804 | |||
1805 | return TRUE; |
||
1806 | } |
||
1807 | |||
1808 | #ifdef COFF_ALIGN_IN_SECTION_HEADER |
||
1809 | |||
1810 | /* Set the alignment of a BFD section. */ |
||
1811 | |||
1812 | static void |
||
1813 | coff_set_alignment_hook (bfd * abfd ATTRIBUTE_UNUSED, |
||
1814 | asection * section, |
||
1815 | void * scnhdr) |
||
1816 | { |
||
1817 | struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr; |
||
1818 | unsigned int i; |
||
1819 | |||
1820 | #ifdef I960 |
||
1821 | /* Extract ALIGN from 2**ALIGN stored in section header. */ |
||
1822 | for (i = 0; i < 32; i++) |
||
1823 | if ((1 << i) >= hdr->s_align) |
||
1824 | break; |
||
1825 | #endif |
||
1826 | #ifdef TIC80COFF |
||
1827 | /* TI tools puts the alignment power in bits 8-11. */ |
||
1828 | i = (hdr->s_flags >> 8) & 0xF ; |
||
1829 | #endif |
||
1830 | #ifdef COFF_DECODE_ALIGNMENT |
||
1831 | i = COFF_DECODE_ALIGNMENT(hdr->s_flags); |
||
1832 | #endif |
||
1833 | section->alignment_power = i; |
||
1834 | |||
1835 | #ifdef coff_set_section_load_page |
||
1836 | coff_set_section_load_page (section, hdr->s_page); |
||
1837 | #endif |
||
1838 | } |
||
1839 | |||
1840 | #else /* ! COFF_ALIGN_IN_SECTION_HEADER */ |
||
1841 | #ifdef COFF_WITH_PE |
||
1842 | |||
1843 | static void |
||
1844 | coff_set_alignment_hook (bfd * abfd ATTRIBUTE_UNUSED, |
||
1845 | asection * section, |
||
1846 | void * scnhdr) |
||
1847 | { |
||
1848 | struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr; |
||
1849 | bfd_size_type amt; |
||
1850 | unsigned int alignment_power_const |
||
1851 | = hdr->s_flags & IMAGE_SCN_ALIGN_POWER_BIT_MASK; |
||
1852 | |||
1853 | switch (alignment_power_const) |
||
1854 | { |
||
1855 | case IMAGE_SCN_ALIGN_8192BYTES: |
||
1856 | case IMAGE_SCN_ALIGN_4096BYTES: |
||
1857 | case IMAGE_SCN_ALIGN_2048BYTES: |
||
1858 | case IMAGE_SCN_ALIGN_1024BYTES: |
||
1859 | case IMAGE_SCN_ALIGN_512BYTES: |
||
1860 | case IMAGE_SCN_ALIGN_256BYTES: |
||
1861 | case IMAGE_SCN_ALIGN_128BYTES: |
||
1862 | case IMAGE_SCN_ALIGN_64BYTES: |
||
1863 | case IMAGE_SCN_ALIGN_32BYTES: |
||
1864 | case IMAGE_SCN_ALIGN_16BYTES: |
||
1865 | case IMAGE_SCN_ALIGN_8BYTES: |
||
1866 | case IMAGE_SCN_ALIGN_4BYTES: |
||
1867 | case IMAGE_SCN_ALIGN_2BYTES: |
||
1868 | case IMAGE_SCN_ALIGN_1BYTES: |
||
1869 | section->alignment_power |
||
1870 | = IMAGE_SCN_ALIGN_POWER_NUM (alignment_power_const); |
||
1871 | break; |
||
1872 | default: |
||
1873 | break; |
||
1874 | } |
||
1875 | |||
1876 | /* In a PE image file, the s_paddr field holds the virtual size of a |
||
1877 | section, while the s_size field holds the raw size. We also keep |
||
1878 | the original section flag value, since not every bit can be |
||
1879 | mapped onto a generic BFD section bit. */ |
||
1880 | if (coff_section_data (abfd, section) == NULL) |
||
1881 | { |
||
1882 | amt = sizeof (struct coff_section_tdata); |
||
1883 | section->used_by_bfd = bfd_zalloc (abfd, amt); |
||
1884 | if (section->used_by_bfd == NULL) |
||
1885 | /* FIXME: Return error. */ |
||
1886 | abort (); |
||
1887 | } |
||
1888 | |||
1889 | if (pei_section_data (abfd, section) == NULL) |
||
1890 | { |
||
1891 | amt = sizeof (struct pei_section_tdata); |
||
1892 | coff_section_data (abfd, section)->tdata = bfd_zalloc (abfd, amt); |
||
1893 | if (coff_section_data (abfd, section)->tdata == NULL) |
||
1894 | /* FIXME: Return error. */ |
||
1895 | abort (); |
||
1896 | } |
||
1897 | pei_section_data (abfd, section)->virt_size = hdr->s_paddr; |
||
1898 | pei_section_data (abfd, section)->pe_flags = hdr->s_flags; |
||
1899 | |||
1900 | section->lma = hdr->s_vaddr; |
||
1901 | |||
1902 | /* Check for extended relocs. */ |
||
1903 | if (hdr->s_flags & IMAGE_SCN_LNK_NRELOC_OVFL) |
||
1904 | { |
||
1905 | struct external_reloc dst; |
||
1906 | struct internal_reloc n; |
||
1907 | file_ptr oldpos = bfd_tell (abfd); |
||
1908 | bfd_size_type relsz = bfd_coff_relsz (abfd); |
||
1909 | |||
1910 | if (bfd_seek (abfd, (file_ptr) hdr->s_relptr, 0) != 0) |
||
1911 | return; |
||
1912 | if (bfd_bread (& dst, relsz, abfd) != relsz) |
||
1913 | return; |
||
1914 | |||
1915 | coff_swap_reloc_in (abfd, &dst, &n); |
||
1916 | if (bfd_seek (abfd, oldpos, 0) != 0) |
||
1917 | return; |
||
1918 | section->reloc_count = hdr->s_nreloc = n.r_vaddr - 1; |
||
1919 | section->rel_filepos += relsz; |
||
1920 | } |
||
1921 | else if (hdr->s_nreloc == 0xffff) |
||
1922 | (*_bfd_error_handler) |
||
1923 | ("%s: warning: claims to have 0xffff relocs, without overflow", |
||
1924 | bfd_get_filename (abfd)); |
||
1925 | } |
||
1926 | #undef ALIGN_SET |
||
1927 | #undef ELIFALIGN_SET |
||
1928 | |||
1929 | #else /* ! COFF_WITH_PE */ |
||
1930 | #ifdef RS6000COFF_C |
||
1931 | |||
1932 | /* We grossly abuse this function to handle XCOFF overflow headers. |
||
1933 | When we see one, we correct the reloc and line number counts in the |
||
1934 | real header, and remove the section we just created. */ |
||
1935 | |||
1936 | static void |
||
1937 | coff_set_alignment_hook (bfd *abfd, asection *section, void * scnhdr) |
||
1938 | { |
||
1939 | struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr; |
||
1940 | asection *real_sec; |
||
1941 | |||
1942 | if ((hdr->s_flags & STYP_OVRFLO) == 0) |
||
1943 | return; |
||
1944 | |||
1945 | real_sec = coff_section_from_bfd_index (abfd, (int) hdr->s_nreloc); |
||
1946 | if (real_sec == NULL) |
||
1947 | return; |
||
1948 | |||
1949 | real_sec->reloc_count = hdr->s_paddr; |
||
1950 | real_sec->lineno_count = hdr->s_vaddr; |
||
1951 | |||
1952 | if (!bfd_section_removed_from_list (abfd, section)) |
||
1953 | { |
||
1954 | bfd_section_list_remove (abfd, section); |
||
1955 | --abfd->section_count; |
||
1956 | } |
||
1957 | } |
||
1958 | |||
1959 | #else /* ! RS6000COFF_C */ |
||
1960 | |||
1961 | #define coff_set_alignment_hook \ |
||
1962 | ((void (*) (bfd *, asection *, void *)) bfd_void) |
||
1963 | |||
1964 | #endif /* ! RS6000COFF_C */ |
||
1965 | #endif /* ! COFF_WITH_PE */ |
||
1966 | #endif /* ! COFF_ALIGN_IN_SECTION_HEADER */ |
||
1967 | |||
1968 | #ifndef coff_mkobject |
||
1969 | |||
1970 | static bfd_boolean |
||
1971 | coff_mkobject (bfd * abfd) |
||
1972 | { |
||
1973 | coff_data_type *coff; |
||
1974 | bfd_size_type amt = sizeof (coff_data_type); |
||
1975 | |||
1976 | abfd->tdata.coff_obj_data = bfd_zalloc (abfd, amt); |
||
1977 | if (abfd->tdata.coff_obj_data == NULL) |
||
1978 | return FALSE; |
||
1979 | coff = coff_data (abfd); |
||
1980 | coff->symbols = NULL; |
||
1981 | coff->conversion_table = NULL; |
||
1982 | coff->raw_syments = NULL; |
||
1983 | coff->relocbase = 0; |
||
1984 | coff->local_toc_sym_map = 0; |
||
1985 | |||
1986 | /* make_abs_section(abfd);*/ |
||
1987 | |||
1988 | return TRUE; |
||
1989 | } |
||
1990 | #endif |
||
1991 | |||
1992 | /* Create the COFF backend specific information. */ |
||
1993 | |||
1994 | #ifndef coff_mkobject_hook |
||
1995 | static void * |
||
1996 | coff_mkobject_hook (bfd * abfd, |
||
1997 | void * filehdr, |
||
1998 | void * aouthdr ATTRIBUTE_UNUSED) |
||
1999 | { |
||
2000 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; |
||
2001 | coff_data_type *coff; |
||
2002 | |||
2003 | if (! coff_mkobject (abfd)) |
||
2004 | return NULL; |
||
2005 | |||
2006 | coff = coff_data (abfd); |
||
2007 | |||
2008 | coff->sym_filepos = internal_f->f_symptr; |
||
2009 | |||
2010 | /* These members communicate important constants about the symbol |
||
2011 | table to GDB's symbol-reading code. These `constants' |
||
2012 | unfortunately vary among coff implementations... */ |
||
2013 | coff->local_n_btmask = N_BTMASK; |
||
2014 | coff->local_n_btshft = N_BTSHFT; |
||
2015 | coff->local_n_tmask = N_TMASK; |
||
2016 | coff->local_n_tshift = N_TSHIFT; |
||
2017 | coff->local_symesz = bfd_coff_symesz (abfd); |
||
2018 | coff->local_auxesz = bfd_coff_auxesz (abfd); |
||
2019 | coff->local_linesz = bfd_coff_linesz (abfd); |
||
2020 | |||
2021 | coff->timestamp = internal_f->f_timdat; |
||
2022 | |||
2023 | obj_raw_syment_count (abfd) = |
||
2024 | obj_conv_table_size (abfd) = |
||
2025 | internal_f->f_nsyms; |
||
2026 | |||
2027 | #ifdef RS6000COFF_C |
||
2028 | if ((internal_f->f_flags & F_SHROBJ) != 0) |
||
2029 | abfd->flags |= DYNAMIC; |
||
2030 | if (aouthdr != NULL && internal_f->f_opthdr >= bfd_coff_aoutsz (abfd)) |
||
2031 | { |
||
2032 | struct internal_aouthdr *internal_a = |
||
2033 | (struct internal_aouthdr *) aouthdr; |
||
2034 | struct xcoff_tdata *xcoff; |
||
2035 | |||
2036 | xcoff = xcoff_data (abfd); |
||
2037 | # ifdef U803XTOCMAGIC |
||
2038 | xcoff->xcoff64 = internal_f->f_magic == U803XTOCMAGIC; |
||
2039 | # else |
||
2040 | xcoff->xcoff64 = 0; |
||
2041 | # endif |
||
2042 | xcoff->full_aouthdr = TRUE; |
||
2043 | xcoff->toc = internal_a->o_toc; |
||
2044 | xcoff->sntoc = internal_a->o_sntoc; |
||
2045 | xcoff->snentry = internal_a->o_snentry; |
||
2046 | bfd_xcoff_text_align_power (abfd) = internal_a->o_algntext; |
||
2047 | bfd_xcoff_data_align_power (abfd) = internal_a->o_algndata; |
||
2048 | xcoff->modtype = internal_a->o_modtype; |
||
2049 | xcoff->cputype = internal_a->o_cputype; |
||
2050 | xcoff->maxdata = internal_a->o_maxdata; |
||
2051 | xcoff->maxstack = internal_a->o_maxstack; |
||
2052 | } |
||
2053 | #endif |
||
2054 | |||
2055 | #ifdef ARM |
||
2056 | /* Set the flags field from the COFF header read in. */ |
||
2057 | if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags)) |
||
2058 | coff->flags = 0; |
||
2059 | #endif |
||
2060 | |||
2061 | #ifdef COFF_WITH_PE |
||
2062 | /* FIXME: I'm not sure this is ever executed, since peicode.h |
||
2063 | defines coff_mkobject_hook. */ |
||
2064 | if ((internal_f->f_flags & IMAGE_FILE_DEBUG_STRIPPED) == 0) |
||
2065 | abfd->flags |= HAS_DEBUG; |
||
2066 | #endif |
||
2067 | |||
2068 | if ((internal_f->f_flags & F_GO32STUB) != 0) |
||
2069 | coff->go32stub = (char *) bfd_alloc (abfd, (bfd_size_type) GO32_STUBSIZE); |
||
2070 | if (coff->go32stub != NULL) |
||
2071 | memcpy (coff->go32stub, internal_f->go32stub, GO32_STUBSIZE); |
||
2072 | |||
2073 | return coff; |
||
2074 | } |
||
2075 | #endif |
||
2076 | |||
2077 | /* Determine the machine architecture and type. FIXME: This is target |
||
2078 | dependent because the magic numbers are defined in the target |
||
2079 | dependent header files. But there is no particular need for this. |
||
2080 | If the magic numbers were moved to a separate file, this function |
||
2081 | would be target independent and would also be much more successful |
||
2082 | at linking together COFF files for different architectures. */ |
||
2083 | |||
2084 | static bfd_boolean |
||
2085 | coff_set_arch_mach_hook (bfd *abfd, void * filehdr) |
||
2086 | { |
||
2087 | unsigned long machine; |
||
2088 | enum bfd_architecture arch; |
||
2089 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; |
||
2090 | |||
2091 | /* Zero selects the default machine for an arch. */ |
||
2092 | machine = 0; |
||
2093 | switch (internal_f->f_magic) |
||
2094 | { |
||
2095 | #ifdef OR32_MAGIC_BIG |
||
2096 | case OR32_MAGIC_BIG: |
||
2097 | case OR32_MAGIC_LITTLE: |
||
2098 | arch = bfd_arch_or32; |
||
2099 | break; |
||
2100 | #endif |
||
2101 | #ifdef PPCMAGIC |
||
2102 | case PPCMAGIC: |
||
2103 | arch = bfd_arch_powerpc; |
||
2104 | break; |
||
2105 | #endif |
||
2106 | #ifdef I386MAGIC |
||
2107 | case I386MAGIC: |
||
2108 | case I386PTXMAGIC: |
||
2109 | case I386AIXMAGIC: /* Danbury PS/2 AIX C Compiler. */ |
||
2110 | case LYNXCOFFMAGIC: /* Shadows the m68k Lynx number below, sigh. */ |
||
2111 | arch = bfd_arch_i386; |
||
2112 | break; |
||
2113 | #endif |
||
2114 | #ifdef AMD64MAGIC |
||
2115 | case AMD64MAGIC: |
||
2116 | arch = bfd_arch_i386; |
||
2117 | machine = bfd_mach_x86_64; |
||
2118 | break; |
||
2119 | #endif |
||
2120 | #ifdef IA64MAGIC |
||
2121 | case IA64MAGIC: |
||
2122 | arch = bfd_arch_ia64; |
||
2123 | break; |
||
2124 | #endif |
||
2125 | #ifdef ARMMAGIC |
||
2126 | case ARMMAGIC: |
||
2127 | case ARMPEMAGIC: |
||
2128 | case THUMBPEMAGIC: |
||
2129 | arch = bfd_arch_arm; |
||
2130 | machine = bfd_arm_get_mach_from_notes (abfd, ARM_NOTE_SECTION); |
||
2131 | if (machine == bfd_mach_arm_unknown) |
||
2132 | { |
||
2133 | switch (internal_f->f_flags & F_ARM_ARCHITECTURE_MASK) |
||
2134 | { |
||
2135 | case F_ARM_2: machine = bfd_mach_arm_2; break; |
||
2136 | case F_ARM_2a: machine = bfd_mach_arm_2a; break; |
||
2137 | case F_ARM_3: machine = bfd_mach_arm_3; break; |
||
2138 | default: |
||
2139 | case F_ARM_3M: machine = bfd_mach_arm_3M; break; |
||
2140 | case F_ARM_4: machine = bfd_mach_arm_4; break; |
||
2141 | case F_ARM_4T: machine = bfd_mach_arm_4T; break; |
||
2142 | /* The COFF header does not have enough bits available |
||
2143 | to cover all the different ARM architectures. So |
||
2144 | we interpret F_ARM_5, the highest flag value to mean |
||
2145 | "the highest ARM architecture known to BFD" which is |
||
2146 | currently the XScale. */ |
||
2147 | case F_ARM_5: machine = bfd_mach_arm_XScale; break; |
||
2148 | } |
||
2149 | } |
||
2150 | break; |
||
2151 | #endif |
||
2152 | #ifdef MC68MAGIC |
||
2153 | case MC68MAGIC: |
||
2154 | case M68MAGIC: |
||
2155 | #ifdef MC68KBCSMAGIC |
||
2156 | case MC68KBCSMAGIC: |
||
2157 | #endif |
||
2158 | #ifdef APOLLOM68KMAGIC |
||
2159 | case APOLLOM68KMAGIC: |
||
2160 | #endif |
||
2161 | #ifdef LYNXCOFFMAGIC |
||
2162 | case LYNXCOFFMAGIC: |
||
2163 | #endif |
||
2164 | arch = bfd_arch_m68k; |
||
2165 | machine = bfd_mach_m68020; |
||
2166 | break; |
||
2167 | #endif |
||
2168 | #ifdef MC88MAGIC |
||
2169 | case MC88MAGIC: |
||
2170 | case MC88DMAGIC: |
||
2171 | case MC88OMAGIC: |
||
2172 | arch = bfd_arch_m88k; |
||
2173 | machine = 88100; |
||
2174 | break; |
||
2175 | #endif |
||
2176 | #ifdef Z80MAGIC |
||
2177 | case Z80MAGIC: |
||
2178 | arch = bfd_arch_z80; |
||
2179 | switch (internal_f->f_flags & F_MACHMASK) |
||
2180 | { |
||
2181 | case 0: |
||
2182 | case bfd_mach_z80strict << 12: |
||
2183 | case bfd_mach_z80 << 12: |
||
2184 | case bfd_mach_z80full << 12: |
||
2185 | case bfd_mach_r800 << 12: |
||
2186 | machine = ((unsigned)internal_f->f_flags & F_MACHMASK) >> 12; |
||
2187 | break; |
||
2188 | default: |
||
2189 | return FALSE; |
||
2190 | } |
||
2191 | break; |
||
2192 | #endif |
||
2193 | #ifdef Z8KMAGIC |
||
2194 | case Z8KMAGIC: |
||
2195 | arch = bfd_arch_z8k; |
||
2196 | switch (internal_f->f_flags & F_MACHMASK) |
||
2197 | { |
||
2198 | case F_Z8001: |
||
2199 | machine = bfd_mach_z8001; |
||
2200 | break; |
||
2201 | case F_Z8002: |
||
2202 | machine = bfd_mach_z8002; |
||
2203 | break; |
||
2204 | default: |
||
2205 | return FALSE; |
||
2206 | } |
||
2207 | break; |
||
2208 | #endif |
||
2209 | #ifdef I860 |
||
2210 | case I860MAGIC: |
||
2211 | arch = bfd_arch_i860; |
||
2212 | break; |
||
2213 | #endif |
||
2214 | #ifdef I960 |
||
2215 | #ifdef I960ROMAGIC |
||
2216 | case I960ROMAGIC: |
||
2217 | case I960RWMAGIC: |
||
2218 | arch = bfd_arch_i960; |
||
2219 | switch (F_I960TYPE & internal_f->f_flags) |
||
2220 | { |
||
2221 | default: |
||
2222 | case F_I960CORE: |
||
2223 | machine = bfd_mach_i960_core; |
||
2224 | break; |
||
2225 | case F_I960KB: |
||
2226 | machine = bfd_mach_i960_kb_sb; |
||
2227 | break; |
||
2228 | case F_I960MC: |
||
2229 | machine = bfd_mach_i960_mc; |
||
2230 | break; |
||
2231 | case F_I960XA: |
||
2232 | machine = bfd_mach_i960_xa; |
||
2233 | break; |
||
2234 | case F_I960CA: |
||
2235 | machine = bfd_mach_i960_ca; |
||
2236 | break; |
||
2237 | case F_I960KA: |
||
2238 | machine = bfd_mach_i960_ka_sa; |
||
2239 | break; |
||
2240 | case F_I960JX: |
||
2241 | machine = bfd_mach_i960_jx; |
||
2242 | break; |
||
2243 | case F_I960HX: |
||
2244 | machine = bfd_mach_i960_hx; |
||
2245 | break; |
||
2246 | } |
||
2247 | break; |
||
2248 | #endif |
||
2249 | #endif |
||
2250 | |||
2251 | #ifdef RS6000COFF_C |
||
2252 | #ifdef XCOFF64 |
||
2253 | case U64_TOCMAGIC: |
||
2254 | case U803XTOCMAGIC: |
||
2255 | #else |
||
2256 | case U802ROMAGIC: |
||
2257 | case U802WRMAGIC: |
||
2258 | case U802TOCMAGIC: |
||
2259 | #endif |
||
2260 | { |
||
2261 | int cputype; |
||
2262 | |||
2263 | if (xcoff_data (abfd)->cputype != -1) |
||
2264 | cputype = xcoff_data (abfd)->cputype & 0xff; |
||
2265 | else |
||
2266 | { |
||
2267 | /* We did not get a value from the a.out header. If the |
||
2268 | file has not been stripped, we may be able to get the |
||
2269 | architecture information from the first symbol, if it |
||
2270 | is a .file symbol. */ |
||
2271 | if (obj_raw_syment_count (abfd) == 0) |
||
2272 | cputype = 0; |
||
2273 | else |
||
2274 | { |
||
2275 | bfd_byte *buf; |
||
2276 | struct internal_syment sym; |
||
2277 | bfd_size_type amt = bfd_coff_symesz (abfd); |
||
2278 | |||
2279 | buf = bfd_malloc (amt); |
||
2280 | if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0 |
||
2281 | || bfd_bread (buf, amt, abfd) != amt) |
||
2282 | { |
||
2283 | free (buf); |
||
2284 | return FALSE; |
||
2285 | } |
||
2286 | bfd_coff_swap_sym_in (abfd, buf, & sym); |
||
2287 | if (sym.n_sclass == C_FILE) |
||
2288 | cputype = sym.n_type & 0xff; |
||
2289 | else |
||
2290 | cputype = 0; |
||
2291 | free (buf); |
||
2292 | } |
||
2293 | } |
||
2294 | |||
2295 | /* FIXME: We don't handle all cases here. */ |
||
2296 | switch (cputype) |
||
2297 | { |
||
2298 | default: |
||
2299 | case 0: |
||
2300 | arch = bfd_xcoff_architecture (abfd); |
||
2301 | machine = bfd_xcoff_machine (abfd); |
||
2302 | break; |
||
2303 | |||
2304 | case 1: |
||
2305 | arch = bfd_arch_powerpc; |
||
2306 | machine = bfd_mach_ppc_601; |
||
2307 | break; |
||
2308 | case 2: /* 64 bit PowerPC */ |
||
2309 | arch = bfd_arch_powerpc; |
||
2310 | machine = bfd_mach_ppc_620; |
||
2311 | break; |
||
2312 | case 3: |
||
2313 | arch = bfd_arch_powerpc; |
||
2314 | machine = bfd_mach_ppc; |
||
2315 | break; |
||
2316 | case 4: |
||
2317 | arch = bfd_arch_rs6000; |
||
2318 | machine = bfd_mach_rs6k; |
||
2319 | break; |
||
2320 | } |
||
2321 | } |
||
2322 | break; |
||
2323 | #endif |
||
2324 | |||
2325 | #ifdef WE32KMAGIC |
||
2326 | case WE32KMAGIC: |
||
2327 | arch = bfd_arch_we32k; |
||
2328 | break; |
||
2329 | #endif |
||
2330 | |||
2331 | #ifdef H8300MAGIC |
||
2332 | case H8300MAGIC: |
||
2333 | arch = bfd_arch_h8300; |
||
2334 | machine = bfd_mach_h8300; |
||
2335 | /* !! FIXME this probably isn't the right place for this. */ |
||
2336 | abfd->flags |= BFD_IS_RELAXABLE; |
||
2337 | break; |
||
2338 | #endif |
||
2339 | |||
2340 | #ifdef H8300HMAGIC |
||
2341 | case H8300HMAGIC: |
||
2342 | arch = bfd_arch_h8300; |
||
2343 | machine = bfd_mach_h8300h; |
||
2344 | /* !! FIXME this probably isn't the right place for this. */ |
||
2345 | abfd->flags |= BFD_IS_RELAXABLE; |
||
2346 | break; |
||
2347 | #endif |
||
2348 | |||
2349 | #ifdef H8300SMAGIC |
||
2350 | case H8300SMAGIC: |
||
2351 | arch = bfd_arch_h8300; |
||
2352 | machine = bfd_mach_h8300s; |
||
2353 | /* !! FIXME this probably isn't the right place for this. */ |
||
2354 | abfd->flags |= BFD_IS_RELAXABLE; |
||
2355 | break; |
||
2356 | #endif |
||
2357 | |||
2358 | #ifdef H8300HNMAGIC |
||
2359 | case H8300HNMAGIC: |
||
2360 | arch = bfd_arch_h8300; |
||
2361 | machine = bfd_mach_h8300hn; |
||
2362 | /* !! FIXME this probably isn't the right place for this. */ |
||
2363 | abfd->flags |= BFD_IS_RELAXABLE; |
||
2364 | break; |
||
2365 | #endif |
||
2366 | |||
2367 | #ifdef H8300SNMAGIC |
||
2368 | case H8300SNMAGIC: |
||
2369 | arch = bfd_arch_h8300; |
||
2370 | machine = bfd_mach_h8300sn; |
||
2371 | /* !! FIXME this probably isn't the right place for this. */ |
||
2372 | abfd->flags |= BFD_IS_RELAXABLE; |
||
2373 | break; |
||
2374 | #endif |
||
2375 | |||
2376 | #ifdef SH_ARCH_MAGIC_BIG |
||
2377 | case SH_ARCH_MAGIC_BIG: |
||
2378 | case SH_ARCH_MAGIC_LITTLE: |
||
2379 | #ifdef COFF_WITH_PE |
||
2380 | case SH_ARCH_MAGIC_WINCE: |
||
2381 | #endif |
||
2382 | arch = bfd_arch_sh; |
||
2383 | break; |
||
2384 | #endif |
||
2385 | |||
2386 | #ifdef MIPS_ARCH_MAGIC_WINCE |
||
2387 | case MIPS_ARCH_MAGIC_WINCE: |
||
2388 | arch = bfd_arch_mips; |
||
2389 | break; |
||
2390 | #endif |
||
2391 | |||
2392 | #ifdef H8500MAGIC |
||
2393 | case H8500MAGIC: |
||
2394 | arch = bfd_arch_h8500; |
||
2395 | break; |
||
2396 | #endif |
||
2397 | |||
2398 | #ifdef SPARCMAGIC |
||
2399 | case SPARCMAGIC: |
||
2400 | #ifdef LYNXCOFFMAGIC |
||
2401 | case LYNXCOFFMAGIC: |
||
2402 | #endif |
||
2403 | arch = bfd_arch_sparc; |
||
2404 | break; |
||
2405 | #endif |
||
2406 | |||
2407 | #ifdef TIC30MAGIC |
||
2408 | case TIC30MAGIC: |
||
2409 | arch = bfd_arch_tic30; |
||
2410 | break; |
||
2411 | #endif |
||
2412 | |||
2413 | #ifdef TICOFF0MAGIC |
||
2414 | #ifdef TICOFF_TARGET_ARCH |
||
2415 | /* This TI COFF section should be used by all new TI COFF v0 targets. */ |
||
2416 | case TICOFF0MAGIC: |
||
2417 | arch = TICOFF_TARGET_ARCH; |
||
2418 | machine = TICOFF_TARGET_MACHINE_GET (internal_f->f_flags); |
||
2419 | break; |
||
2420 | #endif |
||
2421 | #endif |
||
2422 | |||
2423 | #ifdef TICOFF1MAGIC |
||
2424 | /* This TI COFF section should be used by all new TI COFF v1/2 targets. */ |
||
2425 | /* TI COFF1 and COFF2 use the target_id field to specify which arch. */ |
||
2426 | case TICOFF1MAGIC: |
||
2427 | case TICOFF2MAGIC: |
||
2428 | switch (internal_f->f_target_id) |
||
2429 | { |
||
2430 | #ifdef TI_TARGET_ID |
||
2431 | case TI_TARGET_ID: |
||
2432 | arch = TICOFF_TARGET_ARCH; |
||
2433 | machine = TICOFF_TARGET_MACHINE_GET (internal_f->f_flags); |
||
2434 | break; |
||
2435 | #endif |
||
2436 | default: |
||
2437 | arch = bfd_arch_obscure; |
||
2438 | (*_bfd_error_handler) |
||
2439 | (_("Unrecognized TI COFF target id '0x%x'"), |
||
2440 | internal_f->f_target_id); |
||
2441 | break; |
||
2442 | } |
||
2443 | break; |
||
2444 | #endif |
||
2445 | |||
2446 | #ifdef TIC80_ARCH_MAGIC |
||
2447 | case TIC80_ARCH_MAGIC: |
||
2448 | arch = bfd_arch_tic80; |
||
2449 | break; |
||
2450 | #endif |
||
2451 | |||
2452 | #ifdef MCOREMAGIC |
||
2453 | case MCOREMAGIC: |
||
2454 | arch = bfd_arch_mcore; |
||
2455 | break; |
||
2456 | #endif |
||
2457 | |||
2458 | #ifdef W65MAGIC |
||
2459 | case W65MAGIC: |
||
2460 | arch = bfd_arch_w65; |
||
2461 | break; |
||
2462 | #endif |
||
2463 | |||
2464 | default: /* Unreadable input file type. */ |
||
2465 | arch = bfd_arch_obscure; |
||
2466 | break; |
||
2467 | } |
||
2468 | |||
2469 | bfd_default_set_arch_mach (abfd, arch, machine); |
||
2470 | return TRUE; |
||
2471 | } |
||
2472 | |||
2473 | #ifdef SYMNAME_IN_DEBUG |
||
2474 | |||
2475 | static bfd_boolean |
||
2476 | symname_in_debug_hook (bfd * abfd ATTRIBUTE_UNUSED, struct internal_syment *sym) |
||
2477 | { |
||
2478 | return SYMNAME_IN_DEBUG (sym) != 0; |
||
2479 | } |
||
2480 | |||
2481 | #else |
||
2482 | |||
2483 | #define symname_in_debug_hook \ |
||
2484 | (bfd_boolean (*) (bfd *, struct internal_syment *)) bfd_false |
||
2485 | |||
2486 | #endif |
||
2487 | |||
2488 | #ifdef RS6000COFF_C |
||
2489 | |||
2490 | #ifdef XCOFF64 |
||
2491 | #define FORCE_SYMNAMES_IN_STRINGS |
||
2492 | #endif |
||
2493 | |||
2494 | /* Handle the csect auxent of a C_EXT, C_AIX_WEAKEXT or C_HIDEXT symbol. */ |
||
2495 | |||
2496 | static bfd_boolean |
||
2497 | coff_pointerize_aux_hook (bfd *abfd ATTRIBUTE_UNUSED, |
||
2498 | combined_entry_type *table_base, |
||
2499 | combined_entry_type *symbol, |
||
2500 | unsigned int indaux, |
||
2501 | combined_entry_type *aux) |
||
2502 | { |
||
2503 | int n_sclass = symbol->u.syment.n_sclass; |
||
2504 | |||
2505 | if (CSECT_SYM_P (n_sclass) |
||
2506 | && indaux + 1 == symbol->u.syment.n_numaux) |
||
2507 | { |
||
2508 | if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) == XTY_LD) |
||
2509 | { |
||
2510 | aux->u.auxent.x_csect.x_scnlen.p = |
||
2511 | table_base + aux->u.auxent.x_csect.x_scnlen.l; |
||
2512 | aux->fix_scnlen = 1; |
||
2513 | } |
||
2514 | |||
2515 | /* Return TRUE to indicate that the caller should not do any |
||
2516 | further work on this auxent. */ |
||
2517 | return TRUE; |
||
2518 | } |
||
2519 | |||
2520 | /* Return FALSE to indicate that this auxent should be handled by |
||
2521 | the caller. */ |
||
2522 | return FALSE; |
||
2523 | } |
||
2524 | |||
2525 | #else |
||
2526 | #ifdef I960 |
||
2527 | |||
2528 | /* We don't want to pointerize bal entries. */ |
||
2529 | |||
2530 | static bfd_boolean |
||
2531 | coff_pointerize_aux_hook (bfd *abfd ATTRIBUTE_UNUSED, |
||
2532 | combined_entry_type *table_base ATTRIBUTE_UNUSED, |
||
2533 | combined_entry_type *symbol, |
||
2534 | unsigned int indaux, |
||
2535 | combined_entry_type *aux ATTRIBUTE_UNUSED) |
||
2536 | { |
||
2537 | /* Return TRUE if we don't want to pointerize this aux entry, which |
||
2538 | is the case for the lastfirst aux entry for a C_LEAFPROC symbol. */ |
||
2539 | return (indaux == 1 |
||
2540 | && (symbol->u.syment.n_sclass == C_LEAFPROC |
||
2541 | || symbol->u.syment.n_sclass == C_LEAFSTAT |
||
2542 | || symbol->u.syment.n_sclass == C_LEAFEXT)); |
||
2543 | } |
||
2544 | |||
2545 | #else /* ! I960 */ |
||
2546 | |||
2547 | #define coff_pointerize_aux_hook 0 |
||
2548 | |||
2549 | #endif /* ! I960 */ |
||
2550 | #endif /* ! RS6000COFF_C */ |
||
2551 | |||
2552 | /* Print an aux entry. This returns TRUE if it has printed it. */ |
||
2553 | |||
2554 | static bfd_boolean |
||
2555 | coff_print_aux (bfd *abfd ATTRIBUTE_UNUSED, |
||
2556 | FILE *file ATTRIBUTE_UNUSED, |
||
2557 | combined_entry_type *table_base ATTRIBUTE_UNUSED, |
||
2558 | combined_entry_type *symbol ATTRIBUTE_UNUSED, |
||
2559 | combined_entry_type *aux ATTRIBUTE_UNUSED, |
||
2560 | unsigned int indaux ATTRIBUTE_UNUSED) |
||
2561 | { |
||
2562 | #ifdef RS6000COFF_C |
||
2563 | if (CSECT_SYM_P (symbol->u.syment.n_sclass) |
||
2564 | && indaux + 1 == symbol->u.syment.n_numaux) |
||
2565 | { |
||
2566 | /* This is a csect entry. */ |
||
2567 | fprintf (file, "AUX "); |
||
2568 | if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) != XTY_LD) |
||
2569 | { |
||
2570 | BFD_ASSERT (! aux->fix_scnlen); |
||
2571 | #ifdef XCOFF64 |
||
2572 | fprintf (file, "val %5lld", |
||
2573 | (long long) aux->u.auxent.x_csect.x_scnlen.l); |
||
2574 | #else |
||
2575 | fprintf (file, "val %5ld", (long) aux->u.auxent.x_csect.x_scnlen.l); |
||
2576 | #endif |
||
2577 | } |
||
2578 | else |
||
2579 | { |
||
2580 | fprintf (file, "indx "); |
||
2581 | if (! aux->fix_scnlen) |
||
2582 | #ifdef XCOFF64 |
||
2583 | fprintf (file, "%4lld", |
||
2584 | (long long) aux->u.auxent.x_csect.x_scnlen.l); |
||
2585 | #else |
||
2586 | fprintf (file, "%4ld", (long) aux->u.auxent.x_csect.x_scnlen.l); |
||
2587 | #endif |
||
2588 | else |
||
2589 | fprintf (file, "%4ld", |
||
2590 | (long) (aux->u.auxent.x_csect.x_scnlen.p - table_base)); |
||
2591 | } |
||
2592 | fprintf (file, |
||
2593 | " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u", |
||
2594 | aux->u.auxent.x_csect.x_parmhash, |
||
2595 | (unsigned int) aux->u.auxent.x_csect.x_snhash, |
||
2596 | SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp), |
||
2597 | SMTYP_ALIGN (aux->u.auxent.x_csect.x_smtyp), |
||
2598 | (unsigned int) aux->u.auxent.x_csect.x_smclas, |
||
2599 | aux->u.auxent.x_csect.x_stab, |
||
2600 | (unsigned int) aux->u.auxent.x_csect.x_snstab); |
||
2601 | return TRUE; |
||
2602 | } |
||
2603 | #endif |
||
2604 | |||
2605 | /* Return FALSE to indicate that no special action was taken. */ |
||
2606 | return FALSE; |
||
2607 | } |
||
2608 | |||
2609 | /* |
||
2610 | SUBSUBSECTION |
||
2611 | Writing relocations |
||
2612 | |||
2613 | To write relocations, the back end steps though the |
||
2614 | canonical relocation table and create an |
||
2615 | @code{internal_reloc}. The symbol index to use is removed from |
||
2616 | the @code{offset} field in the symbol table supplied. The |
||
2617 | address comes directly from the sum of the section base |
||
2618 | address and the relocation offset; the type is dug directly |
||
2619 | from the howto field. Then the @code{internal_reloc} is |
||
2620 | swapped into the shape of an @code{external_reloc} and written |
||
2621 | out to disk. |
||
2622 | |||
2623 | */ |
||
2624 | |||
2625 | #ifdef TARG_AUX |
||
2626 | |||
2627 | |||
2628 | /* AUX's ld wants relocations to be sorted. */ |
||
2629 | static int |
||
2630 | compare_arelent_ptr (const void * x, const void * y) |
||
2631 | { |
||
2632 | const arelent **a = (const arelent **) x; |
||
2633 | const arelent **b = (const arelent **) y; |
||
2634 | bfd_size_type aadr = (*a)->address; |
||
2635 | bfd_size_type badr = (*b)->address; |
||
2636 | |||
2637 | return (aadr < badr ? -1 : badr < aadr ? 1 : 0); |
||
2638 | } |
||
2639 | |||
2640 | #endif /* TARG_AUX */ |
||
2641 | |||
2642 | static bfd_boolean |
||
2643 | coff_write_relocs (bfd * abfd, int first_undef) |
||
2644 | { |
||
2645 | asection *s; |
||
2646 | |||
2647 | for (s = abfd->sections; s != NULL; s = s->next) |
||
2648 | { |
||
2649 | unsigned int i; |
||
2650 | struct external_reloc dst; |
||
2651 | arelent **p; |
||
2652 | |||
2653 | #ifndef TARG_AUX |
||
2654 | p = s->orelocation; |
||
2655 | #else |
||
2656 | { |
||
2657 | /* Sort relocations before we write them out. */ |
||
2658 | bfd_size_type amt; |
||
2659 | |||
2660 | amt = s->reloc_count; |
||
2661 | amt *= sizeof (arelent *); |
||
2662 | p = bfd_malloc (amt); |
||
2663 | if (p == NULL && s->reloc_count > 0) |
||
2664 | return FALSE; |
||
2665 | memcpy (p, s->orelocation, (size_t) amt); |
||
2666 | qsort (p, s->reloc_count, sizeof (arelent *), compare_arelent_ptr); |
||
2667 | } |
||
2668 | #endif |
||
2669 | |||
2670 | if (bfd_seek (abfd, s->rel_filepos, SEEK_SET) != 0) |
||
2671 | return FALSE; |
||
2672 | |||
2673 | #ifdef COFF_WITH_PE |
||
2674 | if (obj_pe (abfd) && s->reloc_count >= 0xffff) |
||
2675 | { |
||
2676 | /* Encode real count here as first reloc. */ |
||
2677 | struct internal_reloc n; |
||
2678 | |||
2679 | memset (& n, 0, sizeof (n)); |
||
2680 | /* Add one to count *this* reloc (grr). */ |
||
2681 | n.r_vaddr = s->reloc_count + 1; |
||
2682 | coff_swap_reloc_out (abfd, &n, &dst); |
||
2683 | if (bfd_bwrite (& dst, (bfd_size_type) bfd_coff_relsz (abfd), |
||
2684 | abfd) != bfd_coff_relsz (abfd)) |
||
2685 | return FALSE; |
||
2686 | } |
||
2687 | #endif |
||
2688 | |||
2689 | for (i = 0; i < s->reloc_count; i++) |
||
2690 | { |
||
2691 | struct internal_reloc n; |
||
2692 | arelent *q = p[i]; |
||
2693 | |||
2694 | memset (& n, 0, sizeof (n)); |
||
2695 | |||
2696 | /* Now we've renumbered the symbols we know where the |
||
2697 | undefined symbols live in the table. Check the reloc |
||
2698 | entries for symbols who's output bfd isn't the right one. |
||
2699 | This is because the symbol was undefined (which means |
||
2700 | that all the pointers are never made to point to the same |
||
2701 | place). This is a bad thing,'cause the symbols attached |
||
2702 | to the output bfd are indexed, so that the relocation |
||
2703 | entries know which symbol index they point to. So we |
||
2704 | have to look up the output symbol here. */ |
||
2705 | |||
2706 | if (q->sym_ptr_ptr[0] != NULL && q->sym_ptr_ptr[0]->the_bfd != abfd) |
||
2707 | { |
||
2708 | int j; |
||
2709 | const char *sname = q->sym_ptr_ptr[0]->name; |
||
2710 | asymbol **outsyms = abfd->outsymbols; |
||
2711 | |||
2712 | for (j = first_undef; outsyms[j]; j++) |
||
2713 | { |
||
2714 | const char *intable = outsyms[j]->name; |
||
2715 | |||
2716 | if (strcmp (intable, sname) == 0) |
||
2717 | { |
||
2718 | /* Got a hit, so repoint the reloc. */ |
||
2719 | q->sym_ptr_ptr = outsyms + j; |
||
2720 | break; |
||
2721 | } |
||
2722 | } |
||
2723 | } |
||
2724 | |||
2725 | n.r_vaddr = q->address + s->vma; |
||
2726 | |||
2727 | #ifdef R_IHCONST |
||
2728 | /* The 29k const/consth reloc pair is a real kludge. The consth |
||
2729 | part doesn't have a symbol; it has an offset. So rebuilt |
||
2730 | that here. */ |
||
2731 | if (q->howto->type == R_IHCONST) |
||
2732 | n.r_symndx = q->addend; |
||
2733 | else |
||
2734 | #endif |
||
2735 | if (q->sym_ptr_ptr && q->sym_ptr_ptr[0] != NULL) |
||
2736 | { |
||
2737 | #ifdef SECTION_RELATIVE_ABSOLUTE_SYMBOL_P |
||
2738 | if (SECTION_RELATIVE_ABSOLUTE_SYMBOL_P (q, s)) |
||
2739 | #else |
||
2740 | if ((*q->sym_ptr_ptr)->section == bfd_abs_section_ptr |
||
2741 | && ((*q->sym_ptr_ptr)->flags & BSF_SECTION_SYM) != 0) |
||
2742 | #endif |
||
2743 | /* This is a relocation relative to the absolute symbol. */ |
||
2744 | n.r_symndx = -1; |
||
2745 | else |
||
2746 | { |
||
2747 | n.r_symndx = get_index ((*(q->sym_ptr_ptr))); |
||
2748 | /* Check to see if the symbol reloc points to a symbol |
||
2749 | we don't have in our symbol table. */ |
||
2750 | if (n.r_symndx > obj_conv_table_size (abfd)) |
||
2751 | { |
||
2752 | bfd_set_error (bfd_error_bad_value); |
||
2753 | _bfd_error_handler (_("%B: reloc against a non-existant symbol index: %ld"), |
||
2754 | abfd, n.r_symndx); |
||
2755 | return FALSE; |
||
2756 | } |
||
2757 | } |
||
2758 | } |
||
2759 | |||
2760 | #ifdef SWAP_OUT_RELOC_OFFSET |
||
2761 | n.r_offset = q->addend; |
||
2762 | #endif |
||
2763 | |||
2764 | #ifdef SELECT_RELOC |
||
2765 | /* Work out reloc type from what is required. */ |
||
2766 | SELECT_RELOC (n, q->howto); |
||
2767 | #else |
||
2768 | n.r_type = q->howto->type; |
||
2769 | #endif |
||
2770 | coff_swap_reloc_out (abfd, &n, &dst); |
||
2771 | |||
2772 | if (bfd_bwrite (& dst, (bfd_size_type) bfd_coff_relsz (abfd), |
||
2773 | abfd) != bfd_coff_relsz (abfd)) |
||
2774 | return FALSE; |
||
2775 | } |
||
2776 | |||
2777 | #ifdef TARG_AUX |
||
2778 | if (p != NULL) |
||
2779 | free (p); |
||
2780 | #endif |
||
2781 | } |
||
2782 | |||
2783 | return TRUE; |
||
2784 | } |
||
2785 | |||
2786 | /* Set flags and magic number of a coff file from architecture and machine |
||
2787 | type. Result is TRUE if we can represent the arch&type, FALSE if not. */ |
||
2788 | |||
2789 | static bfd_boolean |
||
2790 | coff_set_flags (bfd * abfd, |
||
2791 | unsigned int *magicp ATTRIBUTE_UNUSED, |
||
2792 | unsigned short *flagsp ATTRIBUTE_UNUSED) |
||
2793 | { |
||
2794 | switch (bfd_get_arch (abfd)) |
||
2795 | { |
||
2796 | #ifdef Z80MAGIC |
||
2797 | case bfd_arch_z80: |
||
2798 | *magicp = Z80MAGIC; |
||
2799 | switch (bfd_get_mach (abfd)) |
||
2800 | { |
||
2801 | case 0: |
||
2802 | case bfd_mach_z80strict: |
||
2803 | case bfd_mach_z80: |
||
2804 | case bfd_mach_z80full: |
||
2805 | case bfd_mach_r800: |
||
2806 | *flagsp = bfd_get_mach (abfd) << 12; |
||
2807 | break; |
||
2808 | default: |
||
2809 | return FALSE; |
||
2810 | } |
||
2811 | return TRUE; |
||
2812 | #endif |
||
2813 | |||
2814 | #ifdef Z8KMAGIC |
||
2815 | case bfd_arch_z8k: |
||
2816 | *magicp = Z8KMAGIC; |
||
2817 | |||
2818 | switch (bfd_get_mach (abfd)) |
||
2819 | { |
||
2820 | case bfd_mach_z8001: *flagsp = F_Z8001; break; |
||
2821 | case bfd_mach_z8002: *flagsp = F_Z8002; break; |
||
2822 | default: return FALSE; |
||
2823 | } |
||
2824 | return TRUE; |
||
2825 | #endif |
||
2826 | |||
2827 | #ifdef I960ROMAGIC |
||
2828 | case bfd_arch_i960: |
||
2829 | |||
2830 | { |
||
2831 | unsigned flags; |
||
2832 | |||
2833 | *magicp = I960ROMAGIC; |
||
2834 | |||
2835 | switch (bfd_get_mach (abfd)) |
||
2836 | { |
||
2837 | case bfd_mach_i960_core: flags = F_I960CORE; break; |
||
2838 | case bfd_mach_i960_kb_sb: flags = F_I960KB; break; |
||
2839 | case bfd_mach_i960_mc: flags = F_I960MC; break; |
||
2840 | case bfd_mach_i960_xa: flags = F_I960XA; break; |
||
2841 | case bfd_mach_i960_ca: flags = F_I960CA; break; |
||
2842 | case bfd_mach_i960_ka_sa: flags = F_I960KA; break; |
||
2843 | case bfd_mach_i960_jx: flags = F_I960JX; break; |
||
2844 | case bfd_mach_i960_hx: flags = F_I960HX; break; |
||
2845 | default: return FALSE; |
||
2846 | } |
||
2847 | *flagsp = flags; |
||
2848 | return TRUE; |
||
2849 | } |
||
2850 | break; |
||
2851 | #endif |
||
2852 | |||
2853 | #ifdef TIC30MAGIC |
||
2854 | case bfd_arch_tic30: |
||
2855 | *magicp = TIC30MAGIC; |
||
2856 | return TRUE; |
||
2857 | #endif |
||
2858 | |||
2859 | #ifdef TICOFF_DEFAULT_MAGIC |
||
2860 | case TICOFF_TARGET_ARCH: |
||
2861 | /* If there's no indication of which version we want, use the default. */ |
||
2862 | if (!abfd->xvec ) |
||
2863 | *magicp = TICOFF_DEFAULT_MAGIC; |
||
2864 | else |
||
2865 | { |
||
2866 | /* We may want to output in a different COFF version. */ |
||
2867 | switch (abfd->xvec->name[4]) |
||
2868 | { |
||
2869 | case '0': |
||
2870 | *magicp = TICOFF0MAGIC; |
||
2871 | break; |
||
2872 | case '1': |
||
2873 | *magicp = TICOFF1MAGIC; |
||
2874 | break; |
||
2875 | case '2': |
||
2876 | *magicp = TICOFF2MAGIC; |
||
2877 | break; |
||
2878 | default: |
||
2879 | return FALSE; |
||
2880 | } |
||
2881 | } |
||
2882 | TICOFF_TARGET_MACHINE_SET (flagsp, bfd_get_mach (abfd)); |
||
2883 | return TRUE; |
||
2884 | #endif |
||
2885 | |||
2886 | #ifdef TIC80_ARCH_MAGIC |
||
2887 | case bfd_arch_tic80: |
||
2888 | *magicp = TIC80_ARCH_MAGIC; |
||
2889 | return TRUE; |
||
2890 | #endif |
||
2891 | |||
2892 | #ifdef ARMMAGIC |
||
2893 | case bfd_arch_arm: |
||
2894 | #ifdef ARM_WINCE |
||
2895 | * magicp = ARMPEMAGIC; |
||
2896 | #else |
||
2897 | * magicp = ARMMAGIC; |
||
2898 | #endif |
||
2899 | * flagsp = 0; |
||
2900 | if (APCS_SET (abfd)) |
||
2901 | { |
||
2902 | if (APCS_26_FLAG (abfd)) |
||
2903 | * flagsp |= F_APCS26; |
||
2904 | |||
2905 | if (APCS_FLOAT_FLAG (abfd)) |
||
2906 | * flagsp |= F_APCS_FLOAT; |
||
2907 | |||
2908 | if (PIC_FLAG (abfd)) |
||
2909 | * flagsp |= F_PIC; |
||
2910 | } |
||
2911 | if (INTERWORK_SET (abfd) && INTERWORK_FLAG (abfd)) |
||
2912 | * flagsp |= F_INTERWORK; |
||
2913 | switch (bfd_get_mach (abfd)) |
||
2914 | { |
||
2915 | case bfd_mach_arm_2: * flagsp |= F_ARM_2; break; |
||
2916 | case bfd_mach_arm_2a: * flagsp |= F_ARM_2a; break; |
||
2917 | case bfd_mach_arm_3: * flagsp |= F_ARM_3; break; |
||
2918 | case bfd_mach_arm_3M: * flagsp |= F_ARM_3M; break; |
||
2919 | case bfd_mach_arm_4: * flagsp |= F_ARM_4; break; |
||
2920 | case bfd_mach_arm_4T: * flagsp |= F_ARM_4T; break; |
||
2921 | case bfd_mach_arm_5: * flagsp |= F_ARM_5; break; |
||
2922 | /* FIXME: we do not have F_ARM vaues greater than F_ARM_5. |
||
2923 | See also the comment in coff_set_arch_mach_hook(). */ |
||
2924 | case bfd_mach_arm_5T: * flagsp |= F_ARM_5; break; |
||
2925 | case bfd_mach_arm_5TE: * flagsp |= F_ARM_5; break; |
||
2926 | case bfd_mach_arm_XScale: * flagsp |= F_ARM_5; break; |
||
2927 | } |
||
2928 | return TRUE; |
||
2929 | #endif |
||
2930 | |||
2931 | #ifdef PPCMAGIC |
||
2932 | case bfd_arch_powerpc: |
||
2933 | *magicp = PPCMAGIC; |
||
2934 | return TRUE; |
||
2935 | #endif |
||
2936 | |||
2937 | #if defined(I386MAGIC) || defined(AMD64MAGIC) |
||
2938 | case bfd_arch_i386: |
||
2939 | #if defined(I386MAGIC) |
||
2940 | *magicp = I386MAGIC; |
||
2941 | #endif |
||
2942 | #if defined LYNXOS |
||
2943 | /* Just overwrite the usual value if we're doing Lynx. */ |
||
2944 | *magicp = LYNXCOFFMAGIC; |
||
2945 | #endif |
||
2946 | #if defined AMD64MAGIC |
||
2947 | *magicp = AMD64MAGIC; |
||
2948 | #endif |
||
2949 | return TRUE; |
||
2950 | #endif |
||
2951 | |||
2952 | #ifdef I860MAGIC |
||
2953 | case bfd_arch_i860: |
||
2954 | *magicp = I860MAGIC; |
||
2955 | return TRUE; |
||
2956 | #endif |
||
2957 | |||
2958 | #ifdef IA64MAGIC |
||
2959 | case bfd_arch_ia64: |
||
2960 | *magicp = IA64MAGIC; |
||
2961 | return TRUE; |
||
2962 | #endif |
||
2963 | |||
2964 | #ifdef MC68MAGIC |
||
2965 | case bfd_arch_m68k: |
||
2966 | #ifdef APOLLOM68KMAGIC |
||
2967 | *magicp = APOLLO_COFF_VERSION_NUMBER; |
||
2968 | #else |
||
2969 | /* NAMES_HAVE_UNDERSCORE may be defined by coff-u68k.c. */ |
||
2970 | #ifdef NAMES_HAVE_UNDERSCORE |
||
2971 | *magicp = MC68KBCSMAGIC; |
||
2972 | #else |
||
2973 | *magicp = MC68MAGIC; |
||
2974 | #endif |
||
2975 | #endif |
||
2976 | #ifdef LYNXOS |
||
2977 | /* Just overwrite the usual value if we're doing Lynx. */ |
||
2978 | *magicp = LYNXCOFFMAGIC; |
||
2979 | #endif |
||
2980 | return TRUE; |
||
2981 | #endif |
||
2982 | |||
2983 | #ifdef MC88MAGIC |
||
2984 | case bfd_arch_m88k: |
||
2985 | *magicp = MC88OMAGIC; |
||
2986 | return TRUE; |
||
2987 | #endif |
||
2988 | |||
2989 | #ifdef H8300MAGIC |
||
2990 | case bfd_arch_h8300: |
||
2991 | switch (bfd_get_mach (abfd)) |
||
2992 | { |
||
2993 | case bfd_mach_h8300: *magicp = H8300MAGIC; return TRUE; |
||
2994 | case bfd_mach_h8300h: *magicp = H8300HMAGIC; return TRUE; |
||
2995 | case bfd_mach_h8300s: *magicp = H8300SMAGIC; return TRUE; |
||
2996 | case bfd_mach_h8300hn: *magicp = H8300HNMAGIC; return TRUE; |
||
2997 | case bfd_mach_h8300sn: *magicp = H8300SNMAGIC; return TRUE; |
||
2998 | default: break; |
||
2999 | } |
||
3000 | break; |
||
3001 | #endif |
||
3002 | |||
3003 | #ifdef SH_ARCH_MAGIC_BIG |
||
3004 | case bfd_arch_sh: |
||
3005 | #ifdef COFF_IMAGE_WITH_PE |
||
3006 | *magicp = SH_ARCH_MAGIC_WINCE; |
||
3007 | #else |
||
3008 | if (bfd_big_endian (abfd)) |
||
3009 | *magicp = SH_ARCH_MAGIC_BIG; |
||
3010 | else |
||
3011 | *magicp = SH_ARCH_MAGIC_LITTLE; |
||
3012 | #endif |
||
3013 | return TRUE; |
||
3014 | #endif |
||
3015 | |||
3016 | #ifdef MIPS_ARCH_MAGIC_WINCE |
||
3017 | case bfd_arch_mips: |
||
3018 | *magicp = MIPS_ARCH_MAGIC_WINCE; |
||
3019 | return TRUE; |
||
3020 | #endif |
||
3021 | |||
3022 | #ifdef SPARCMAGIC |
||
3023 | case bfd_arch_sparc: |
||
3024 | *magicp = SPARCMAGIC; |
||
3025 | #ifdef LYNXOS |
||
3026 | /* Just overwrite the usual value if we're doing Lynx. */ |
||
3027 | *magicp = LYNXCOFFMAGIC; |
||
3028 | #endif |
||
3029 | return TRUE; |
||
3030 | #endif |
||
3031 | |||
3032 | #ifdef H8500MAGIC |
||
3033 | case bfd_arch_h8500: |
||
3034 | *magicp = H8500MAGIC; |
||
3035 | return TRUE; |
||
3036 | break; |
||
3037 | #endif |
||
3038 | |||
3039 | #ifdef WE32KMAGIC |
||
3040 | case bfd_arch_we32k: |
||
3041 | *magicp = WE32KMAGIC; |
||
3042 | return TRUE; |
||
3043 | #endif |
||
3044 | |||
3045 | #ifdef RS6000COFF_C |
||
3046 | case bfd_arch_rs6000: |
||
3047 | #ifndef PPCMAGIC |
||
3048 | case bfd_arch_powerpc: |
||
3049 | #endif |
||
3050 | BFD_ASSERT (bfd_get_flavour (abfd) == bfd_target_xcoff_flavour); |
||
3051 | *magicp = bfd_xcoff_magic_number (abfd); |
||
3052 | return TRUE; |
||
3053 | #endif |
||
3054 | |||
3055 | #ifdef MCOREMAGIC |
||
3056 | case bfd_arch_mcore: |
||
3057 | * magicp = MCOREMAGIC; |
||
3058 | return TRUE; |
||
3059 | #endif |
||
3060 | |||
3061 | #ifdef W65MAGIC |
||
3062 | case bfd_arch_w65: |
||
3063 | *magicp = W65MAGIC; |
||
3064 | return TRUE; |
||
3065 | #endif |
||
3066 | |||
3067 | #ifdef OR32_MAGIC_BIG |
||
3068 | case bfd_arch_or32: |
||
3069 | if (bfd_big_endian (abfd)) |
||
3070 | * magicp = OR32_MAGIC_BIG; |
||
3071 | else |
||
3072 | * magicp = OR32_MAGIC_LITTLE; |
||
3073 | return TRUE; |
||
3074 | #endif |
||
3075 | |||
3076 | default: /* Unknown architecture. */ |
||
3077 | /* Fall through to "return FALSE" below, to avoid |
||
3078 | "statement never reached" errors on the one below. */ |
||
3079 | break; |
||
3080 | } |
||
3081 | |||
3082 | return FALSE; |
||
3083 | } |
||
3084 | |||
3085 | static bfd_boolean |
||
3086 | coff_set_arch_mach (bfd * abfd, |
||
3087 | enum bfd_architecture arch, |
||
3088 | unsigned long machine) |
||
3089 | { |
||
3090 | unsigned dummy1; |
||
3091 | unsigned short dummy2; |
||
3092 | |||
3093 | if (! bfd_default_set_arch_mach (abfd, arch, machine)) |
||
3094 | return FALSE; |
||
3095 | |||
3096 | if (arch != bfd_arch_unknown |
||
3097 | && ! coff_set_flags (abfd, &dummy1, &dummy2)) |
||
3098 | return FALSE; /* We can't represent this type. */ |
||
3099 | |||
3100 | return TRUE; /* We're easy... */ |
||
3101 | } |
||
3102 | |||
3103 | #ifdef COFF_IMAGE_WITH_PE |
||
3104 | |||
3105 | /* This is used to sort sections by VMA, as required by PE image |
||
3106 | files. */ |
||
3107 | |||
3108 | static int |
||
3109 | sort_by_secaddr (const void * arg1, const void * arg2) |
||
3110 | { |
||
3111 | const asection *a = *(const asection **) arg1; |
||
3112 | const asection *b = *(const asection **) arg2; |
||
3113 | |||
3114 | if (a->vma < b->vma) |
||
3115 | return -1; |
||
3116 | else if (a->vma > b->vma) |
||
3117 | return 1; |
||
3118 | |||
3119 | return 0; |
||
3120 | } |
||
3121 | |||
3122 | #endif /* COFF_IMAGE_WITH_PE */ |
||
3123 | |||
3124 | /* Calculate the file position for each section. */ |
||
3125 | |||
3126 | #ifndef I960 |
||
3127 | #define ALIGN_SECTIONS_IN_FILE |
||
3128 | #endif |
||
3129 | #if defined(TIC80COFF) || defined(TICOFF) |
||
3130 | #undef ALIGN_SECTIONS_IN_FILE |
||
3131 | #endif |
||
3132 | |||
3133 | static bfd_boolean |
||
3134 | coff_compute_section_file_positions (bfd * abfd) |
||
3135 | { |
||
3136 | asection *current; |
||
3137 | file_ptr sofar = bfd_coff_filhsz (abfd); |
||
3138 | bfd_boolean align_adjust; |
||
3139 | int target_index; |
||
3140 | #ifdef ALIGN_SECTIONS_IN_FILE |
||
3141 | asection *previous = NULL; |
||
3142 | file_ptr old_sofar; |
||
3143 | #endif |
||
3144 | |||
3145 | #ifdef COFF_IMAGE_WITH_PE |
||
3146 | int page_size; |
||
3147 | |||
3148 | if (coff_data (abfd)->link_info) |
||
3149 | { |
||
3150 | page_size = pe_data (abfd)->pe_opthdr.FileAlignment; |
||
3151 | |||
3152 | /* If no file alignment has been set, default to one. |
||
3153 | This repairs 'ld -r' for arm-wince-pe target. */ |
||
3154 | if (page_size == 0) |
||
3155 | page_size = 1; |
||
3156 | } |
||
3157 | else |
||
3158 | page_size = PE_DEF_FILE_ALIGNMENT; |
||
3159 | #else |
||
3160 | #ifdef COFF_PAGE_SIZE |
||
3161 | int page_size = COFF_PAGE_SIZE; |
||
3162 | #endif |
||
3163 | #endif |
||
3164 | |||
3165 | #ifdef RS6000COFF_C |
||
3166 | /* On XCOFF, if we have symbols, set up the .debug section. */ |
||
3167 | if (bfd_get_symcount (abfd) > 0) |
||
3168 | { |
||
3169 | bfd_size_type sz; |
||
3170 | bfd_size_type i, symcount; |
||
3171 | asymbol **symp; |
||
3172 | |||
3173 | sz = 0; |
||
3174 | symcount = bfd_get_symcount (abfd); |
||
3175 | for (symp = abfd->outsymbols, i = 0; i < symcount; symp++, i++) |
||
3176 | { |
||
3177 | coff_symbol_type *cf; |
||
3178 | |||
3179 | cf = coff_symbol_from (abfd, *symp); |
||
3180 | if (cf != NULL |
||
3181 | && cf->native != NULL |
||
3182 | && SYMNAME_IN_DEBUG (&cf->native->u.syment)) |
||
3183 | { |
||
3184 | size_t len; |
||
3185 | |||
3186 | len = strlen (bfd_asymbol_name (*symp)); |
||
3187 | if (len > SYMNMLEN || bfd_coff_force_symnames_in_strings (abfd)) |
||
3188 | sz += len + 1 + bfd_coff_debug_string_prefix_length (abfd); |
||
3189 | } |
||
3190 | } |
||
3191 | if (sz > 0) |
||
3192 | { |
||
3193 | asection *dsec; |
||
3194 | |||
3195 | dsec = bfd_make_section_old_way (abfd, DOT_DEBUG); |
||
3196 | if (dsec == NULL) |
||
3197 | abort (); |
||
3198 | dsec->size = sz; |
||
3199 | dsec->flags |= SEC_HAS_CONTENTS; |
||
3200 | } |
||
3201 | } |
||
3202 | #endif |
||
3203 | |||
3204 | if (bfd_get_start_address (abfd)) |
||
3205 | /* A start address may have been added to the original file. In this |
||
3206 | case it will need an optional header to record it. */ |
||
3207 | abfd->flags |= EXEC_P; |
||
3208 | |||
3209 | if (abfd->flags & EXEC_P) |
||
3210 | sofar += bfd_coff_aoutsz (abfd); |
||
3211 | #ifdef RS6000COFF_C |
||
3212 | else if (xcoff_data (abfd)->full_aouthdr) |
||
3213 | sofar += bfd_coff_aoutsz (abfd); |
||
3214 | else |
||
3215 | sofar += SMALL_AOUTSZ; |
||
3216 | #endif |
||
3217 | |||
3218 | sofar += abfd->section_count * bfd_coff_scnhsz (abfd); |
||
3219 | |||
3220 | #ifdef RS6000COFF_C |
||
3221 | /* XCOFF handles overflows in the reloc and line number count fields |
||
3222 | by allocating a new section header to hold the correct counts. */ |
||
3223 | for (current = abfd->sections; current != NULL; current = current->next) |
||
3224 | if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff) |
||
3225 | sofar += bfd_coff_scnhsz (abfd); |
||
3226 | #endif |
||
3227 | |||
3228 | #ifdef COFF_IMAGE_WITH_PE |
||
3229 | { |
||
3230 | /* PE requires the sections to be in memory order when listed in |
||
3231 | the section headers. It also does not like empty loadable |
||
3232 | sections. The sections apparently do not have to be in the |
||
3233 | right order in the image file itself, but we do need to get the |
||
3234 | target_index values right. */ |
||
3235 | |||
3236 | unsigned int count; |
||
3237 | asection **section_list; |
||
3238 | unsigned int i; |
||
3239 | bfd_size_type amt; |
||
3240 | |||
3241 | #ifdef COFF_PAGE_SIZE |
||
3242 | /* Clear D_PAGED if section alignment is smaller than |
||
3243 | COFF_PAGE_SIZE. */ |
||
3244 | if (pe_data (abfd)->pe_opthdr.SectionAlignment < COFF_PAGE_SIZE) |
||
3245 | abfd->flags &= ~D_PAGED; |
||
3246 | #endif |
||
3247 | |||
3248 | count = 0; |
||
3249 | for (current = abfd->sections; current != NULL; current = current->next) |
||
3250 | ++count; |
||
3251 | |||
3252 | /* We allocate an extra cell to simplify the final loop. */ |
||
3253 | amt = sizeof (struct asection *) * (count + 1); |
||
3254 | section_list = (asection **) bfd_malloc (amt); |
||
3255 | if (section_list == NULL) |
||
3256 | return FALSE; |
||
3257 | |||
3258 | i = 0; |
||
3259 | for (current = abfd->sections; current != NULL; current = current->next) |
||
3260 | { |
||
3261 | section_list[i] = current; |
||
3262 | ++i; |
||
3263 | } |
||
3264 | section_list[i] = NULL; |
||
3265 | |||
3266 | qsort (section_list, count, sizeof (asection *), sort_by_secaddr); |
||
3267 | |||
3268 | /* Rethread the linked list into sorted order; at the same time, |
||
3269 | assign target_index values. */ |
||
3270 | target_index = 1; |
||
3271 | abfd->sections = NULL; |
||
3272 | abfd->section_last = NULL; |
||
3273 | for (i = 0; i < count; i++) |
||
3274 | { |
||
3275 | current = section_list[i]; |
||
3276 | bfd_section_list_append (abfd, current); |
||
3277 | |||
3278 | /* Later, if the section has zero size, we'll be throwing it |
||
3279 | away, so we don't want to number it now. Note that having |
||
3280 | a zero size and having real contents are different |
||
3281 | concepts: .bss has no contents, but (usually) non-zero |
||
3282 | size. */ |
||
3283 | if (current->size == 0) |
||
3284 | { |
||
3285 | /* Discard. However, it still might have (valid) symbols |
||
3286 | in it, so arbitrarily set it to section 1 (indexing is |
||
3287 | 1-based here; usually .text). __end__ and other |
||
3288 | contents of .endsection really have this happen. |
||
3289 | FIXME: This seems somewhat dubious. */ |
||
3290 | current->target_index = 1; |
||
3291 | } |
||
3292 | else |
||
3293 | current->target_index = target_index++; |
||
3294 | } |
||
3295 | |||
3296 | free (section_list); |
||
3297 | } |
||
3298 | #else /* ! COFF_IMAGE_WITH_PE */ |
||
3299 | { |
||
3300 | /* Set the target_index field. */ |
||
3301 | target_index = 1; |
||
3302 | for (current = abfd->sections; current != NULL; current = current->next) |
||
3303 | current->target_index = target_index++; |
||
3304 | } |
||
3305 | #endif /* ! COFF_IMAGE_WITH_PE */ |
||
3306 | |||
3307 | if (target_index >= 32768) |
||
3308 | { |
||
3309 | bfd_set_error (bfd_error_file_too_big); |
||
3310 | (*_bfd_error_handler) |
||
3311 | (_("%B: too many sections (%d)"), abfd, target_index); |
||
3312 | return FALSE; |
||
3313 | } |
||
3314 | |||
3315 | align_adjust = FALSE; |
||
3316 | for (current = abfd->sections; |
||
3317 | current != NULL; |
||
3318 | current = current->next) |
||
3319 | { |
||
3320 | #ifdef COFF_IMAGE_WITH_PE |
||
3321 | /* With PE we have to pad each section to be a multiple of its |
||
3322 | page size too, and remember both sizes. */ |
||
3323 | if (coff_section_data (abfd, current) == NULL) |
||
3324 | { |
||
3325 | bfd_size_type amt = sizeof (struct coff_section_tdata); |
||
3326 | |||
3327 | current->used_by_bfd = bfd_zalloc (abfd, amt); |
||
3328 | if (current->used_by_bfd == NULL) |
||
3329 | return FALSE; |
||
3330 | } |
||
3331 | if (pei_section_data (abfd, current) == NULL) |
||
3332 | { |
||
3333 | bfd_size_type amt = sizeof (struct pei_section_tdata); |
||
3334 | |||
3335 | coff_section_data (abfd, current)->tdata = bfd_zalloc (abfd, amt); |
||
3336 | if (coff_section_data (abfd, current)->tdata == NULL) |
||
3337 | return FALSE; |
||
3338 | } |
||
3339 | if (pei_section_data (abfd, current)->virt_size == 0) |
||
3340 | pei_section_data (abfd, current)->virt_size = current->size; |
||
3341 | #endif |
||
3342 | |||
3343 | /* Only deal with sections which have contents. */ |
||
3344 | if (!(current->flags & SEC_HAS_CONTENTS)) |
||
3345 | continue; |
||
3346 | |||
3347 | current->rawsize = current->size; |
||
3348 | |||
3349 | #ifdef COFF_IMAGE_WITH_PE |
||
3350 | /* Make sure we skip empty sections in a PE image. */ |
||
3351 | if (current->size == 0) |
||
3352 | continue; |
||
3353 | #endif |
||
3354 | |||
3355 | /* Align the sections in the file to the same boundary on |
||
3356 | which they are aligned in virtual memory. I960 doesn't |
||
3357 | do this (FIXME) so we can stay in sync with Intel. 960 |
||
3358 | doesn't yet page from files... */ |
||
3359 | #ifdef ALIGN_SECTIONS_IN_FILE |
||
3360 | if ((abfd->flags & EXEC_P) != 0) |
||
3361 | { |
||
3362 | /* Make sure this section is aligned on the right boundary - by |
||
3363 | padding the previous section up if necessary. */ |
||
3364 | old_sofar = sofar; |
||
3365 | |||
3366 | sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); |
||
3367 | |||
3368 | #ifdef RS6000COFF_C |
||
3369 | /* Make sure the file offset and the vma of .text/.data are at the |
||
3370 | same page offset, so that the file can be mmap'ed without being |
||
3371 | relocated. Failing that, AIX is able to load and execute the |
||
3372 | program, but it will be silently relocated (possible as |
||
3373 | executables are PIE). But the relocation is slightly costly and |
||
3374 | complexify the use of addr2line or gdb. So better to avoid it, |
||
3375 | like does the native linker. Usually gnu ld makes sure that |
||
3376 | the vma of .text is the file offset so this issue shouldn't |
||
3377 | appear unless you are stripping such an executable. |
||
3378 | |||
3379 | AIX loader checks the text section alignment of (vma - filepos), |
||
3380 | and the native linker doesn't try to align the text sections. |
||
3381 | For example: |
||
3382 | |||
3383 | |||
3384 | CONTENTS, ALLOC, LOAD, CODE |
||
3385 | */ |
||
3386 | |||
3387 | if (!strcmp (current->name, _TEXT) |
||
3388 | || !strcmp (current->name, _DATA)) |
||
3389 | { |
||
3390 | bfd_vma align = 4096; |
||
3391 | bfd_vma sofar_off = sofar % align; |
||
3392 | bfd_vma vma_off = current->vma % align; |
||
3393 | |||
3394 | if (vma_off > sofar_off) |
||
3395 | sofar += vma_off - sofar_off; |
||
3396 | else if (vma_off < sofar_off) |
||
3397 | sofar += align + vma_off - sofar_off; |
||
3398 | } |
||
3399 | #endif |
||
3400 | if (previous != NULL) |
||
3401 | previous->size += sofar - old_sofar; |
||
3402 | } |
||
3403 | |||
3404 | #endif |
||
3405 | |||
3406 | /* In demand paged files the low order bits of the file offset |
||
3407 | must match the low order bits of the virtual address. */ |
||
3408 | #ifdef COFF_PAGE_SIZE |
||
3409 | if ((abfd->flags & D_PAGED) != 0 |
||
3410 | && (current->flags & SEC_ALLOC) != 0) |
||
3411 | sofar += (current->vma - (bfd_vma) sofar) % page_size; |
||
3412 | #endif |
||
3413 | current->filepos = sofar; |
||
3414 | |||
3415 | #ifdef COFF_IMAGE_WITH_PE |
||
3416 | /* Set the padded size. */ |
||
3417 | current->size = (current->size + page_size - 1) & -page_size; |
||
3418 | #endif |
||
3419 | |||
3420 | sofar += current->size; |
||
3421 | |||
3422 | #ifdef ALIGN_SECTIONS_IN_FILE |
||
3423 | /* Make sure that this section is of the right size too. */ |
||
3424 | if ((abfd->flags & EXEC_P) == 0) |
||
3425 | { |
||
3426 | bfd_size_type old_size; |
||
3427 | |||
3428 | old_size = current->size; |
||
3429 | current->size = BFD_ALIGN (current->size, |
||
3430 | 1 << current->alignment_power); |
||
3431 | align_adjust = current->size != old_size; |
||
3432 | sofar += current->size - old_size; |
||
3433 | } |
||
3434 | else |
||
3435 | { |
||
3436 | old_sofar = sofar; |
||
3437 | sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); |
||
3438 | align_adjust = sofar != old_sofar; |
||
3439 | current->size += sofar - old_sofar; |
||
3440 | } |
||
3441 | #endif |
||
3442 | |||
3443 | #ifdef COFF_IMAGE_WITH_PE |
||
3444 | /* For PE we need to make sure we pad out to the aligned |
||
3445 | size, in case the caller only writes out data to the |
||
3446 | unaligned size. */ |
||
3447 | if (pei_section_data (abfd, current)->virt_size < current->size) |
||
3448 | align_adjust = TRUE; |
||
3449 | #endif |
||
3450 | |||
3451 | #ifdef _LIB |
||
3452 | /* Force .lib sections to start at zero. The vma is then |
||
3453 | incremented in coff_set_section_contents. This is right for |
||
3454 | SVR3.2. */ |
||
3455 | if (strcmp (current->name, _LIB) == 0) |
||
3456 | (void) bfd_set_section_vma (abfd, current, 0); |
||
3457 | #endif |
||
3458 | |||
3459 | #ifdef ALIGN_SECTIONS_IN_FILE |
||
3460 | previous = current; |
||
3461 | #endif |
||
3462 | } |
||
3463 | |||
3464 | /* It is now safe to write to the output file. If we needed an |
||
3465 | alignment adjustment for the last section, then make sure that |
||
3466 | there is a byte at offset sofar. If there are no symbols and no |
||
3467 | relocs, then nothing follows the last section. If we don't force |
||
3468 | the last byte out, then the file may appear to be truncated. */ |
||
3469 | if (align_adjust) |
||
3470 | { |
||
3471 | bfd_byte b; |
||
3472 | |||
3473 | b = 0; |
||
3474 | if (bfd_seek (abfd, sofar - 1, SEEK_SET) != 0 |
||
3475 | || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1) |
||
3476 | return FALSE; |
||
3477 | } |
||
3478 | |||
3479 | /* Make sure the relocations are aligned. We don't need to make |
||
3480 | sure that this byte exists, because it will only matter if there |
||
3481 | really are relocs. */ |
||
3482 | sofar = BFD_ALIGN (sofar, 1 << COFF_DEFAULT_SECTION_ALIGNMENT_POWER); |
||
3483 | |||
3484 | obj_relocbase (abfd) = sofar; |
||
3485 | abfd->output_has_begun = TRUE; |
||
3486 | |||
3487 | return TRUE; |
||
3488 | } |
||
3489 | |||
3490 | #ifdef COFF_IMAGE_WITH_PE |
||
3491 | |||
3492 | static unsigned int pelength; |
||
3493 | static unsigned int peheader; |
||
3494 | |||
3495 | static bfd_boolean |
||
3496 | coff_read_word (bfd *abfd, unsigned int *value) |
||
3497 | { |
||
3498 | unsigned char b[2]; |
||
3499 | int status; |
||
3500 | |||
3501 | status = bfd_bread (b, (bfd_size_type) 2, abfd); |
||
3502 | if (status < 1) |
||
3503 | { |
||
3504 | *value = 0; |
||
3505 | return FALSE; |
||
3506 | } |
||
3507 | |||
3508 | if (status == 1) |
||
3509 | *value = (unsigned int) b[0]; |
||
3510 | else |
||
3511 | *value = (unsigned int) (b[0] + (b[1] << 8)); |
||
3512 | |||
3513 | pelength += (unsigned int) status; |
||
3514 | |||
3515 | return TRUE; |
||
3516 | } |
||
3517 | |||
3518 | static unsigned int |
||
3519 | coff_compute_checksum (bfd *abfd) |
||
3520 | { |
||
3521 | bfd_boolean more_data; |
||
3522 | file_ptr filepos; |
||
3523 | unsigned int value; |
||
3524 | unsigned int total; |
||
3525 | |||
3526 | total = 0; |
||
3527 | pelength = 0; |
||
3528 | filepos = (file_ptr) 0; |
||
3529 | |||
3530 | do |
||
3531 | { |
||
3532 | if (bfd_seek (abfd, filepos, SEEK_SET) != 0) |
||
3533 | return 0; |
||
3534 | |||
3535 | more_data = coff_read_word (abfd, &value); |
||
3536 | total += value; |
||
3537 | total = 0xffff & (total + (total >> 0x10)); |
||
3538 | filepos += 2; |
||
3539 | } |
||
3540 | while (more_data); |
||
3541 | |||
3542 | return (0xffff & (total + (total >> 0x10))); |
||
3543 | } |
||
3544 | |||
3545 | static bfd_boolean |
||
3546 | coff_apply_checksum (bfd *abfd) |
||
3547 | { |
||
3548 | unsigned int computed; |
||
3549 | unsigned int checksum = 0; |
||
3550 | |||
3551 | if (bfd_seek (abfd, 0x3c, SEEK_SET) != 0) |
||
3552 | return FALSE; |
||
3553 | |||
3554 | if (!coff_read_word (abfd, &peheader)) |
||
3555 | return FALSE; |
||
3556 | |||
3557 | if (bfd_seek (abfd, peheader + 0x58, SEEK_SET) != 0) |
||
3558 | return FALSE; |
||
3559 | |||
3560 | checksum = 0; |
||
3561 | bfd_bwrite (&checksum, (bfd_size_type) 4, abfd); |
||
3562 | |||
3563 | if (bfd_seek (abfd, peheader, SEEK_SET) != 0) |
||
3564 | return FALSE; |
||
3565 | |||
3566 | computed = coff_compute_checksum (abfd); |
||
3567 | |||
3568 | checksum = computed + pelength; |
||
3569 | |||
3570 | if (bfd_seek (abfd, peheader + 0x58, SEEK_SET) != 0) |
||
3571 | return FALSE; |
||
3572 | |||
3573 | bfd_bwrite (&checksum, (bfd_size_type) 4, abfd); |
||
3574 | |||
3575 | return TRUE; |
||
3576 | } |
||
3577 | |||
3578 | #endif /* COFF_IMAGE_WITH_PE */ |
||
3579 | |||
3580 | static bfd_boolean |
||
3581 | coff_write_object_contents (bfd * abfd) |
||
3582 | { |
||
3583 | asection *current; |
||
3584 | bfd_boolean hasrelocs = FALSE; |
||
3585 | bfd_boolean haslinno = FALSE; |
||
3586 | #ifdef COFF_IMAGE_WITH_PE |
||
3587 | bfd_boolean hasdebug = FALSE; |
||
3588 | #endif |
||
3589 | file_ptr scn_base; |
||
3590 | file_ptr reloc_base; |
||
3591 | file_ptr lineno_base; |
||
3592 | file_ptr sym_base; |
||
3593 | unsigned long reloc_size = 0, reloc_count = 0; |
||
3594 | unsigned long lnno_size = 0; |
||
3595 | bfd_boolean long_section_names; |
||
3596 | asection *text_sec = NULL; |
||
3597 | asection *data_sec = NULL; |
||
3598 | asection *bss_sec = NULL; |
||
3599 | struct internal_filehdr internal_f; |
||
3600 | struct internal_aouthdr internal_a; |
||
3601 | #ifdef COFF_LONG_SECTION_NAMES |
||
3602 | size_t string_size = STRING_SIZE_SIZE; |
||
3603 | #endif |
||
3604 | |||
3605 | bfd_set_error (bfd_error_system_call); |
||
3606 | |||
3607 | /* Make a pass through the symbol table to count line number entries and |
||
3608 | put them into the correct asections. */ |
||
3609 | lnno_size = coff_count_linenumbers (abfd) * bfd_coff_linesz (abfd); |
||
3610 | |||
3611 | if (! abfd->output_has_begun) |
||
3612 | { |
||
3613 | if (! coff_compute_section_file_positions (abfd)) |
||
3614 | return FALSE; |
||
3615 | } |
||
3616 | |||
3617 | reloc_base = obj_relocbase (abfd); |
||
3618 | |||
3619 | /* Work out the size of the reloc and linno areas. */ |
||
3620 | |||
3621 | for (current = abfd->sections; current != NULL; current = |
||
3622 | current->next) |
||
3623 | { |
||
3624 | #ifdef COFF_WITH_PE |
||
3625 | /* We store the actual reloc count in the first reloc's addr. */ |
||
3626 | if (obj_pe (abfd) && current->reloc_count >= 0xffff) |
||
3627 | reloc_count ++; |
||
3628 | #endif |
||
3629 | reloc_count += current->reloc_count; |
||
3630 | } |
||
3631 | |||
3632 | reloc_size = reloc_count * bfd_coff_relsz (abfd); |
||
3633 | |||
3634 | lineno_base = reloc_base + reloc_size; |
||
3635 | sym_base = lineno_base + lnno_size; |
||
3636 | |||
3637 | /* Indicate in each section->line_filepos its actual file address. */ |
||
3638 | for (current = abfd->sections; current != NULL; current = |
||
3639 | current->next) |
||
3640 | { |
||
3641 | if (current->lineno_count) |
||
3642 | { |
||
3643 | current->line_filepos = lineno_base; |
||
3644 | current->moving_line_filepos = lineno_base; |
||
3645 | lineno_base += current->lineno_count * bfd_coff_linesz (abfd); |
||
3646 | } |
||
3647 | else |
||
3648 | current->line_filepos = 0; |
||
3649 | |||
3650 | if (current->reloc_count) |
||
3651 | { |
||
3652 | current->rel_filepos = reloc_base; |
||
3653 | reloc_base += current->reloc_count * bfd_coff_relsz (abfd); |
||
3654 | #ifdef COFF_WITH_PE |
||
3655 | /* Extra reloc to hold real count. */ |
||
3656 | if (obj_pe (abfd) && current->reloc_count >= 0xffff) |
||
3657 | reloc_base += bfd_coff_relsz (abfd); |
||
3658 | #endif |
||
3659 | } |
||
3660 | else |
||
3661 | current->rel_filepos = 0; |
||
3662 | } |
||
3663 | |||
3664 | /* Write section headers to the file. */ |
||
3665 | internal_f.f_nscns = 0; |
||
3666 | |||
3667 | if ((abfd->flags & EXEC_P) != 0) |
||
3668 | scn_base = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd); |
||
3669 | else |
||
3670 | { |
||
3671 | scn_base = bfd_coff_filhsz (abfd); |
||
3672 | #ifdef RS6000COFF_C |
||
3673 | #ifndef XCOFF64 |
||
3674 | if (xcoff_data (abfd)->full_aouthdr) |
||
3675 | scn_base += bfd_coff_aoutsz (abfd); |
||
3676 | else |
||
3677 | scn_base += SMALL_AOUTSZ; |
||
3678 | #endif |
||
3679 | #endif |
||
3680 | } |
||
3681 | |||
3682 | if (bfd_seek (abfd, scn_base, SEEK_SET) != 0) |
||
3683 | return FALSE; |
||
3684 | |||
3685 | long_section_names = FALSE; |
||
3686 | for (current = abfd->sections; |
||
3687 | current != NULL; |
||
3688 | current = current->next) |
||
3689 | { |
||
3690 | struct internal_scnhdr section; |
||
3691 | #ifdef COFF_IMAGE_WITH_PE |
||
3692 | bfd_boolean is_reloc_section = FALSE; |
||
3693 | |||
3694 | if (strcmp (current->name, DOT_RELOC) == 0) |
||
3695 | { |
||
3696 | is_reloc_section = TRUE; |
||
3697 | hasrelocs = TRUE; |
||
3698 | pe_data (abfd)->has_reloc_section = 1; |
||
3699 | } |
||
3700 | #endif |
||
3701 | |||
3702 | internal_f.f_nscns++; |
||
3703 | |||
3704 | strncpy (section.s_name, current->name, SCNNMLEN); |
||
3705 | |||
3706 | #ifdef COFF_LONG_SECTION_NAMES |
||
3707 | /* Handle long section names as in PE. This must be compatible |
||
3708 | with the code in coff_write_symbols and _bfd_coff_final_link. */ |
||
3709 | if (bfd_coff_long_section_names (abfd)) |
||
3710 | { |
||
3711 | size_t len; |
||
3712 | |||
3713 | len = strlen (current->name); |
||
3714 | if (len > SCNNMLEN) |
||
3715 | { |
||
3716 | /* The s_name field is defined to be NUL-padded but need not be |
||
3717 | NUL-terminated. We use a temporary buffer so that we can still |
||
3718 | sprintf all eight chars without splatting a terminating NUL |
||
3719 | over the first byte of the following member (s_paddr). */ |
||
3720 | char s_name_buf[SCNNMLEN + 1]; |
||
3721 | |||
3722 | /* An inherent limitation of the /nnnnnnn notation used to indicate |
||
3723 | the offset of the long name in the string table is that we |
||
3724 | cannot address entries beyone the ten million byte boundary. */ |
||
3725 | if (string_size >= 10000000) |
||
3726 | { |
||
3727 | bfd_set_error (bfd_error_file_too_big); |
||
3728 | (*_bfd_error_handler) |
||
3729 | (_("%B: section %s: string table overflow at offset %ld"), |
||
3730 | abfd, current->name, string_size); |
||
3731 | return FALSE; |
||
3732 | } |
||
3733 | |||
3734 | /* snprintf not strictly necessary now we've verified the value |
||
3735 | has less than eight ASCII digits, but never mind. */ |
||
3736 | snprintf (s_name_buf, SCNNMLEN + 1, "/%lu", (unsigned long) string_size); |
||
3737 | /* Then strncpy takes care of any padding for us. */ |
||
3738 | strncpy (section.s_name, s_name_buf, SCNNMLEN); |
||
3739 | string_size += len + 1; |
||
3740 | long_section_names = TRUE; |
||
3741 | } |
||
3742 | } |
||
3743 | #endif |
||
3744 | |||
3745 | #ifdef _LIB |
||
3746 | /* Always set s_vaddr of .lib to 0. This is right for SVR3.2 |
||
3747 | Ian Taylor |
||
3748 | if (strcmp (current->name, _LIB) == 0) |
||
3749 | section.s_vaddr = 0; |
||
3750 | else |
||
3751 | #endif |
||
3752 | section.s_vaddr = current->vma; |
||
3753 | section.s_paddr = current->lma; |
||
3754 | section.s_size = current->size; |
||
3755 | #ifdef coff_get_section_load_page |
||
3756 | section.s_page = coff_get_section_load_page (current); |
||
3757 | #else |
||
3758 | section.s_page = 0; |
||
3759 | #endif |
||
3760 | |||
3761 | #ifdef COFF_WITH_PE |
||
3762 | section.s_paddr = 0; |
||
3763 | #endif |
||
3764 | #ifdef COFF_IMAGE_WITH_PE |
||
3765 | /* Reminder: s_paddr holds the virtual size of the section. */ |
||
3766 | if (coff_section_data (abfd, current) != NULL |
||
3767 | && pei_section_data (abfd, current) != NULL) |
||
3768 | section.s_paddr = pei_section_data (abfd, current)->virt_size; |
||
3769 | else |
||
3770 | section.s_paddr = 0; |
||
3771 | #endif |
||
3772 | |||
3773 | /* If this section has no size or is unloadable then the scnptr |
||
3774 | will be 0 too. */ |
||
3775 | if (current->size == 0 |
||
3776 | || (current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) |
||
3777 | section.s_scnptr = 0; |
||
3778 | else |
||
3779 | section.s_scnptr = current->filepos; |
||
3780 | |||
3781 | section.s_relptr = current->rel_filepos; |
||
3782 | section.s_lnnoptr = current->line_filepos; |
||
3783 | section.s_nreloc = current->reloc_count; |
||
3784 | section.s_nlnno = current->lineno_count; |
||
3785 | #ifndef COFF_IMAGE_WITH_PE |
||
3786 | /* In PEI, relocs come in the .reloc section. */ |
||
3787 | if (current->reloc_count != 0) |
||
3788 | hasrelocs = TRUE; |
||
3789 | #endif |
||
3790 | if (current->lineno_count != 0) |
||
3791 | haslinno = TRUE; |
||
3792 | #ifdef COFF_IMAGE_WITH_PE |
||
3793 | if ((current->flags & SEC_DEBUGGING) != 0 |
||
3794 | && ! is_reloc_section) |
||
3795 | hasdebug = TRUE; |
||
3796 | #endif |
||
3797 | |||
3798 | #ifdef RS6000COFF_C |
||
3799 | #ifndef XCOFF64 |
||
3800 | /* Indicate the use of an XCOFF overflow section header. */ |
||
3801 | if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff) |
||
3802 | { |
||
3803 | section.s_nreloc = 0xffff; |
||
3804 | section.s_nlnno = 0xffff; |
||
3805 | } |
||
3806 | #endif |
||
3807 | #endif |
||
3808 | |||
3809 | section.s_flags = sec_to_styp_flags (current->name, current->flags); |
||
3810 | |||
3811 | if (!strcmp (current->name, _TEXT)) |
||
3812 | text_sec = current; |
||
3813 | else if (!strcmp (current->name, _DATA)) |
||
3814 | data_sec = current; |
||
3815 | else if (!strcmp (current->name, _BSS)) |
||
3816 | bss_sec = current; |
||
3817 | |||
3818 | #ifdef I960 |
||
3819 | section.s_align = (current->alignment_power |
||
3820 | ? 1 << current->alignment_power |
||
3821 | : 0); |
||
3822 | #endif |
||
3823 | #ifdef TIC80COFF |
||
3824 | /* TI COFF puts the alignment power in bits 8-11 of the flags. */ |
||
3825 | section.s_flags |= (current->alignment_power & 0xF) << 8; |
||
3826 | #endif |
||
3827 | #ifdef COFF_ENCODE_ALIGNMENT |
||
3828 | COFF_ENCODE_ALIGNMENT(section, current->alignment_power); |
||
3829 | #endif |
||
3830 | |||
3831 | #ifdef COFF_IMAGE_WITH_PE |
||
3832 | /* Suppress output of the sections if they are null. ld |
||
3833 | includes the bss and data sections even if there is no size |
||
3834 | assigned to them. NT loader doesn't like it if these section |
||
3835 | headers are included if the sections themselves are not |
||
3836 | needed. See also coff_compute_section_file_positions. */ |
||
3837 | if (section.s_size == 0) |
||
3838 | internal_f.f_nscns--; |
||
3839 | else |
||
3840 | #endif |
||
3841 | { |
||
3842 | SCNHDR buff; |
||
3843 | bfd_size_type amt = bfd_coff_scnhsz (abfd); |
||
3844 | |||
3845 | if (coff_swap_scnhdr_out (abfd, §ion, &buff) == 0 |
||
3846 | || bfd_bwrite (& buff, amt, abfd) != amt) |
||
3847 | return FALSE; |
||
3848 | } |
||
3849 | |||
3850 | #ifdef COFF_WITH_PE |
||
3851 | /* PE stores COMDAT section information in the symbol table. If |
||
3852 | this section is supposed to have some COMDAT info, track down |
||
3853 | the symbol in the symbol table and modify it. */ |
||
3854 | if ((current->flags & SEC_LINK_ONCE) != 0) |
||
3855 | { |
||
3856 | unsigned int i, count; |
||
3857 | asymbol **psym; |
||
3858 | coff_symbol_type *csym = NULL; |
||
3859 | asymbol **psymsec; |
||
3860 | |||
3861 | psymsec = NULL; |
||
3862 | count = bfd_get_symcount (abfd); |
||
3863 | for (i = 0, psym = abfd->outsymbols; i < count; i++, psym++) |
||
3864 | { |
||
3865 | if ((*psym)->section != current) |
||
3866 | continue; |
||
3867 | |||
3868 | /* Remember the location of the first symbol in this |
||
3869 | section. */ |
||
3870 | if (psymsec == NULL) |
||
3871 | psymsec = psym; |
||
3872 | |||
3873 | /* See if this is the section symbol. */ |
||
3874 | if (strcmp ((*psym)->name, current->name) == 0) |
||
3875 | { |
||
3876 | csym = coff_symbol_from (abfd, *psym); |
||
3877 | if (csym == NULL |
||
3878 | || csym->native == NULL |
||
3879 | || csym->native->u.syment.n_numaux < 1 |
||
3880 | || csym->native->u.syment.n_sclass != C_STAT |
||
3881 | || csym->native->u.syment.n_type != T_NULL) |
||
3882 | continue; |
||
3883 | |||
3884 | /* Here *PSYM is the section symbol for CURRENT. */ |
||
3885 | |||
3886 | break; |
||
3887 | } |
||
3888 | } |
||
3889 | |||
3890 | /* Did we find it? |
||
3891 | Note that we might not if we're converting the file from |
||
3892 | some other object file format. */ |
||
3893 | if (i < count) |
||
3894 | { |
||
3895 | combined_entry_type *aux; |
||
3896 | |||
3897 | /* We don't touch the x_checksum field. The |
||
3898 | x_associated field is not currently supported. */ |
||
3899 | |||
3900 | aux = csym->native + 1; |
||
3901 | switch (current->flags & SEC_LINK_DUPLICATES) |
||
3902 | { |
||
3903 | case SEC_LINK_DUPLICATES_DISCARD: |
||
3904 | aux->u.auxent.x_scn.x_comdat = IMAGE_COMDAT_SELECT_ANY; |
||
3905 | break; |
||
3906 | |||
3907 | case SEC_LINK_DUPLICATES_ONE_ONLY: |
||
3908 | aux->u.auxent.x_scn.x_comdat = |
||
3909 | IMAGE_COMDAT_SELECT_NODUPLICATES; |
||
3910 | break; |
||
3911 | |||
3912 | case SEC_LINK_DUPLICATES_SAME_SIZE: |
||
3913 | aux->u.auxent.x_scn.x_comdat = |
||
3914 | IMAGE_COMDAT_SELECT_SAME_SIZE; |
||
3915 | break; |
||
3916 | |||
3917 | case SEC_LINK_DUPLICATES_SAME_CONTENTS: |
||
3918 | aux->u.auxent.x_scn.x_comdat = |
||
3919 | IMAGE_COMDAT_SELECT_EXACT_MATCH; |
||
3920 | break; |
||
3921 | } |
||
3922 | |||
3923 | /* The COMDAT symbol must be the first symbol from this |
||
3924 | section in the symbol table. In order to make this |
||
3925 | work, we move the COMDAT symbol before the first |
||
3926 | symbol we found in the search above. It's OK to |
||
3927 | rearrange the symbol table at this point, because |
||
3928 | coff_renumber_symbols is going to rearrange it |
||
3929 | further and fix up all the aux entries. */ |
||
3930 | if (psym != psymsec) |
||
3931 | { |
||
3932 | asymbol *hold; |
||
3933 | asymbol **pcopy; |
||
3934 | |||
3935 | hold = *psym; |
||
3936 | for (pcopy = psym; pcopy > psymsec; pcopy--) |
||
3937 | pcopy[0] = pcopy[-1]; |
||
3938 | *psymsec = hold; |
||
3939 | } |
||
3940 | } |
||
3941 | } |
||
3942 | #endif /* COFF_WITH_PE */ |
||
3943 | } |
||
3944 | |||
3945 | #ifdef RS6000COFF_C |
||
3946 | #ifndef XCOFF64 |
||
3947 | /* XCOFF handles overflows in the reloc and line number count fields |
||
3948 | by creating a new section header to hold the correct values. */ |
||
3949 | for (current = abfd->sections; current != NULL; current = current->next) |
||
3950 | { |
||
3951 | if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff) |
||
3952 | { |
||
3953 | struct internal_scnhdr scnhdr; |
||
3954 | SCNHDR buff; |
||
3955 | bfd_size_type amt; |
||
3956 | |||
3957 | internal_f.f_nscns++; |
||
3958 | memcpy (scnhdr.s_name, ".ovrflo", 8); |
||
3959 | scnhdr.s_paddr = current->reloc_count; |
||
3960 | scnhdr.s_vaddr = current->lineno_count; |
||
3961 | scnhdr.s_size = 0; |
||
3962 | scnhdr.s_scnptr = 0; |
||
3963 | scnhdr.s_relptr = current->rel_filepos; |
||
3964 | scnhdr.s_lnnoptr = current->line_filepos; |
||
3965 | scnhdr.s_nreloc = current->target_index; |
||
3966 | scnhdr.s_nlnno = current->target_index; |
||
3967 | scnhdr.s_flags = STYP_OVRFLO; |
||
3968 | amt = bfd_coff_scnhsz (abfd); |
||
3969 | if (coff_swap_scnhdr_out (abfd, &scnhdr, &buff) == 0 |
||
3970 | || bfd_bwrite (& buff, amt, abfd) != amt) |
||
3971 | return FALSE; |
||
3972 | } |
||
3973 | } |
||
3974 | #endif |
||
3975 | #endif |
||
3976 | |||
3977 | /* OK, now set up the filehdr... */ |
||
3978 | |||
3979 | /* Don't include the internal abs section in the section count */ |
||
3980 | |||
3981 | /* We will NOT put a fucking timestamp in the header here. Every time you |
||
3982 | put it back, I will come in and take it out again. I'm sorry. This |
||
3983 | field does not belong here. We fill it with a 0 so it compares the |
||
3984 | same but is not a reasonable time. -- gnu@cygnus.com */ |
||
3985 | internal_f.f_timdat = 0; |
||
3986 | internal_f.f_flags = 0; |
||
3987 | |||
3988 | if (abfd->flags & EXEC_P) |
||
3989 | internal_f.f_opthdr = bfd_coff_aoutsz (abfd); |
||
3990 | else |
||
3991 | { |
||
3992 | internal_f.f_opthdr = 0; |
||
3993 | #ifdef RS6000COFF_C |
||
3994 | #ifndef XCOFF64 |
||
3995 | if (xcoff_data (abfd)->full_aouthdr) |
||
3996 | internal_f.f_opthdr = bfd_coff_aoutsz (abfd); |
||
3997 | else |
||
3998 | internal_f.f_opthdr = SMALL_AOUTSZ; |
||
3999 | #endif |
||
4000 | #endif |
||
4001 | } |
||
4002 | |||
4003 | if (!hasrelocs) |
||
4004 | internal_f.f_flags |= F_RELFLG; |
||
4005 | if (!haslinno) |
||
4006 | internal_f.f_flags |= F_LNNO; |
||
4007 | if (abfd->flags & EXEC_P) |
||
4008 | internal_f.f_flags |= F_EXEC; |
||
4009 | #ifdef COFF_IMAGE_WITH_PE |
||
4010 | if (! hasdebug) |
||
4011 | internal_f.f_flags |= IMAGE_FILE_DEBUG_STRIPPED; |
||
4012 | if (pe_data (abfd)->real_flags & IMAGE_FILE_LARGE_ADDRESS_AWARE) |
||
4013 | internal_f.f_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE; |
||
4014 | #endif |
||
4015 | |||
4016 | #ifndef COFF_WITH_pex64 |
||
4017 | #ifdef COFF_WITH_PE |
||
4018 | internal_f.f_flags |= IMAGE_FILE_32BIT_MACHINE; |
||
4019 | #else |
||
4020 | if (bfd_little_endian (abfd)) |
||
4021 | internal_f.f_flags |= F_AR32WR; |
||
4022 | else |
||
4023 | internal_f.f_flags |= F_AR32W; |
||
4024 | #endif |
||
4025 | #endif |
||
4026 | |||
4027 | #ifdef TI_TARGET_ID |
||
4028 | /* Target id is used in TI COFF v1 and later; COFF0 won't use this field, |
||
4029 | but it doesn't hurt to set it internally. */ |
||
4030 | internal_f.f_target_id = TI_TARGET_ID; |
||
4031 | #endif |
||
4032 | #ifdef TIC80_TARGET_ID |
||
4033 | internal_f.f_target_id = TIC80_TARGET_ID; |
||
4034 | #endif |
||
4035 | |||
4036 | /* FIXME, should do something about the other byte orders and |
||
4037 | architectures. */ |
||
4038 | |||
4039 | #ifdef RS6000COFF_C |
||
4040 | if ((abfd->flags & DYNAMIC) != 0) |
||
4041 | internal_f.f_flags |= F_SHROBJ; |
||
4042 | if (bfd_get_section_by_name (abfd, _LOADER) != NULL) |
||
4043 | internal_f.f_flags |= F_DYNLOAD; |
||
4044 | #endif |
||
4045 | |||
4046 | memset (&internal_a, 0, sizeof internal_a); |
||
4047 | |||
4048 | /* Set up architecture-dependent stuff. */ |
||
4049 | { |
||
4050 | unsigned int magic = 0; |
||
4051 | unsigned short flags = 0; |
||
4052 | |||
4053 | coff_set_flags (abfd, &magic, &flags); |
||
4054 | internal_f.f_magic = magic; |
||
4055 | internal_f.f_flags |= flags; |
||
4056 | /* ...and the "opt"hdr... */ |
||
4057 | |||
4058 | #ifdef TICOFF_AOUT_MAGIC |
||
4059 | internal_a.magic = TICOFF_AOUT_MAGIC; |
||
4060 | #define __A_MAGIC_SET__ |
||
4061 | #endif |
||
4062 | #ifdef TIC80COFF |
||
4063 | internal_a.magic = TIC80_ARCH_MAGIC; |
||
4064 | #define __A_MAGIC_SET__ |
||
4065 | #endif /* TIC80 */ |
||
4066 | #ifdef I860 |
||
4067 | /* FIXME: What are the a.out magic numbers for the i860? */ |
||
4068 | internal_a.magic = 0; |
||
4069 | #define __A_MAGIC_SET__ |
||
4070 | #endif /* I860 */ |
||
4071 | #ifdef I960 |
||
4072 | internal_a.magic = (magic == I960ROMAGIC ? NMAGIC : OMAGIC); |
||
4073 | #define __A_MAGIC_SET__ |
||
4074 | #endif /* I960 */ |
||
4075 | #if M88 |
||
4076 | #define __A_MAGIC_SET__ |
||
4077 | internal_a.magic = PAGEMAGICBCS; |
||
4078 | #endif /* M88 */ |
||
4079 | |||
4080 | #if APOLLO_M68 |
||
4081 | #define __A_MAGIC_SET__ |
||
4082 | internal_a.magic = APOLLO_COFF_VERSION_NUMBER; |
||
4083 | #endif |
||
4084 | |||
4085 | #if defined(M68) || defined(WE32K) || defined(M68K) |
||
4086 | #define __A_MAGIC_SET__ |
||
4087 | #if defined(LYNXOS) |
||
4088 | internal_a.magic = LYNXCOFFMAGIC; |
||
4089 | #else |
||
4090 | #if defined(TARG_AUX) |
||
4091 | internal_a.magic = (abfd->flags & D_PAGED ? PAGEMAGICPEXECPAGED : |
||
4092 | abfd->flags & WP_TEXT ? PAGEMAGICPEXECSWAPPED : |
||
4093 | PAGEMAGICEXECSWAPPED); |
||
4094 | #else |
||
4095 | #if defined (PAGEMAGICPEXECPAGED) |
||
4096 | internal_a.magic = PAGEMAGICPEXECPAGED; |
||
4097 | #endif |
||
4098 | #endif /* TARG_AUX */ |
||
4099 | #endif /* LYNXOS */ |
||
4100 | #endif /* M68 || WE32K || M68K */ |
||
4101 | |||
4102 | #if defined(ARM) |
||
4103 | #define __A_MAGIC_SET__ |
||
4104 | internal_a.magic = ZMAGIC; |
||
4105 | #endif |
||
4106 | |||
4107 | #if defined(PPC_PE) |
||
4108 | #define __A_MAGIC_SET__ |
||
4109 | internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC; |
||
4110 | #endif |
||
4111 | |||
4112 | #if defined MCORE_PE |
||
4113 | #define __A_MAGIC_SET__ |
||
4114 | internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC; |
||
4115 | #endif |
||
4116 | |||
4117 | #if defined(I386) |
||
4118 | #define __A_MAGIC_SET__ |
||
4119 | #if defined LYNXOS |
||
4120 | internal_a.magic = LYNXCOFFMAGIC; |
||
4121 | #elif defined AMD64 |
||
4122 | internal_a.magic = IMAGE_NT_OPTIONAL_HDR64_MAGIC; |
||
4123 | #else |
||
4124 | internal_a.magic = ZMAGIC; |
||
4125 | #endif |
||
4126 | #endif /* I386 */ |
||
4127 | |||
4128 | #if defined(IA64) |
||
4129 | #define __A_MAGIC_SET__ |
||
4130 | internal_a.magic = PE32PMAGIC; |
||
4131 | #endif /* IA64 */ |
||
4132 | |||
4133 | #if defined(SPARC) |
||
4134 | #define __A_MAGIC_SET__ |
||
4135 | #if defined(LYNXOS) |
||
4136 | internal_a.magic = LYNXCOFFMAGIC; |
||
4137 | #endif /* LYNXOS */ |
||
4138 | #endif /* SPARC */ |
||
4139 | |||
4140 | #ifdef RS6000COFF_C |
||
4141 | #define __A_MAGIC_SET__ |
||
4142 | internal_a.magic = (abfd->flags & D_PAGED) ? RS6K_AOUTHDR_ZMAGIC : |
||
4143 | (abfd->flags & WP_TEXT) ? RS6K_AOUTHDR_NMAGIC : |
||
4144 | RS6K_AOUTHDR_OMAGIC; |
||
4145 | #endif |
||
4146 | |||
4147 | #if defined(SH) && defined(COFF_WITH_PE) |
||
4148 | #define __A_MAGIC_SET__ |
||
4149 | internal_a.magic = SH_PE_MAGIC; |
||
4150 | #endif |
||
4151 | |||
4152 | #if defined(MIPS) && defined(COFF_WITH_PE) |
||
4153 | #define __A_MAGIC_SET__ |
||
4154 | internal_a.magic = MIPS_PE_MAGIC; |
||
4155 | #endif |
||
4156 | |||
4157 | #ifdef OR32 |
||
4158 | #define __A_MAGIC_SET__ |
||
4159 | internal_a.magic = NMAGIC; /* Assume separate i/d. */ |
||
4160 | #endif |
||
4161 | |||
4162 | #ifndef __A_MAGIC_SET__ |
||
4163 | #include "Your aouthdr magic number is not being set!" |
||
4164 | #else |
||
4165 | #undef __A_MAGIC_SET__ |
||
4166 | #endif |
||
4167 | } |
||
4168 | |||
4169 | /* FIXME: Does anybody ever set this to another value? */ |
||
4170 | internal_a.vstamp = 0; |
||
4171 | |||
4172 | /* Now should write relocs, strings, syms. */ |
||
4173 | obj_sym_filepos (abfd) = sym_base; |
||
4174 | |||
4175 | if (bfd_get_symcount (abfd) != 0) |
||
4176 | { |
||
4177 | int firstundef; |
||
4178 | |||
4179 | if (!coff_renumber_symbols (abfd, &firstundef)) |
||
4180 | return FALSE; |
||
4181 | coff_mangle_symbols (abfd); |
||
4182 | if (! coff_write_symbols (abfd)) |
||
4183 | return FALSE; |
||
4184 | if (! coff_write_linenumbers (abfd)) |
||
4185 | return FALSE; |
||
4186 | if (! coff_write_relocs (abfd, firstundef)) |
||
4187 | return FALSE; |
||
4188 | } |
||
4189 | #ifdef COFF_LONG_SECTION_NAMES |
||
4190 | else if (long_section_names && ! obj_coff_strings_written (abfd)) |
||
4191 | { |
||
4192 | /* If we have long section names we have to write out the string |
||
4193 | table even if there are no symbols. */ |
||
4194 | if (! coff_write_symbols (abfd)) |
||
4195 | return FALSE; |
||
4196 | } |
||
4197 | #endif |
||
4198 | #ifdef COFF_IMAGE_WITH_PE |
||
4199 | #ifdef PPC_PE |
||
4200 | else if ((abfd->flags & EXEC_P) != 0) |
||
4201 | { |
||
4202 | bfd_byte b; |
||
4203 | |||
4204 | /* PowerPC PE appears to require that all executable files be |
||
4205 | rounded up to the page size. */ |
||
4206 | b = 0; |
||
4207 | if (bfd_seek (abfd, |
||
4208 | (file_ptr) BFD_ALIGN (sym_base, COFF_PAGE_SIZE) - 1, |
||
4209 | SEEK_SET) != 0 |
||
4210 | || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1) |
||
4211 | return FALSE; |
||
4212 | } |
||
4213 | #endif |
||
4214 | #endif |
||
4215 | |||
4216 | /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF |
||
4217 | backend linker, and obj_raw_syment_count is not valid until after |
||
4218 | coff_write_symbols is called. */ |
||
4219 | if (obj_raw_syment_count (abfd) != 0) |
||
4220 | { |
||
4221 | internal_f.f_symptr = sym_base; |
||
4222 | #ifdef RS6000COFF_C |
||
4223 | /* AIX appears to require that F_RELFLG not be set if there are |
||
4224 | local symbols but no relocations. */ |
||
4225 | internal_f.f_flags &=~ F_RELFLG; |
||
4226 | #endif |
||
4227 | } |
||
4228 | else |
||
4229 | { |
||
4230 | if (long_section_names) |
||
4231 | internal_f.f_symptr = sym_base; |
||
4232 | else |
||
4233 | internal_f.f_symptr = 0; |
||
4234 | internal_f.f_flags |= F_LSYMS; |
||
4235 | } |
||
4236 | |||
4237 | if (text_sec) |
||
4238 | { |
||
4239 | internal_a.tsize = text_sec->size; |
||
4240 | internal_a.text_start = internal_a.tsize ? text_sec->vma : 0; |
||
4241 | } |
||
4242 | if (data_sec) |
||
4243 | { |
||
4244 | internal_a.dsize = data_sec->size; |
||
4245 | internal_a.data_start = internal_a.dsize ? data_sec->vma : 0; |
||
4246 | } |
||
4247 | if (bss_sec) |
||
4248 | { |
||
4249 | internal_a.bsize = bss_sec->size; |
||
4250 | if (internal_a.bsize && bss_sec->vma < internal_a.data_start) |
||
4251 | internal_a.data_start = bss_sec->vma; |
||
4252 | } |
||
4253 | |||
4254 | internal_a.entry = bfd_get_start_address (abfd); |
||
4255 | internal_f.f_nsyms = obj_raw_syment_count (abfd); |
||
4256 | |||
4257 | #ifdef RS6000COFF_C |
||
4258 | if (xcoff_data (abfd)->full_aouthdr) |
||
4259 | { |
||
4260 | bfd_vma toc; |
||
4261 | asection *loader_sec; |
||
4262 | |||
4263 | internal_a.vstamp = 1; |
||
4264 | |||
4265 | internal_a.o_snentry = xcoff_data (abfd)->snentry; |
||
4266 | if (internal_a.o_snentry == 0) |
||
4267 | internal_a.entry = (bfd_vma) -1; |
||
4268 | |||
4269 | if (text_sec != NULL) |
||
4270 | { |
||
4271 | internal_a.o_sntext = text_sec->target_index; |
||
4272 | internal_a.o_algntext = bfd_get_section_alignment (abfd, text_sec); |
||
4273 | } |
||
4274 | else |
||
4275 | { |
||
4276 | internal_a.o_sntext = 0; |
||
4277 | internal_a.o_algntext = 0; |
||
4278 | } |
||
4279 | if (data_sec != NULL) |
||
4280 | { |
||
4281 | internal_a.o_sndata = data_sec->target_index; |
||
4282 | internal_a.o_algndata = bfd_get_section_alignment (abfd, data_sec); |
||
4283 | } |
||
4284 | else |
||
4285 | { |
||
4286 | internal_a.o_sndata = 0; |
||
4287 | internal_a.o_algndata = 0; |
||
4288 | } |
||
4289 | loader_sec = bfd_get_section_by_name (abfd, ".loader"); |
||
4290 | if (loader_sec != NULL) |
||
4291 | internal_a.o_snloader = loader_sec->target_index; |
||
4292 | else |
||
4293 | internal_a.o_snloader = 0; |
||
4294 | if (bss_sec != NULL) |
||
4295 | internal_a.o_snbss = bss_sec->target_index; |
||
4296 | else |
||
4297 | internal_a.o_snbss = 0; |
||
4298 | |||
4299 | toc = xcoff_data (abfd)->toc; |
||
4300 | internal_a.o_toc = toc; |
||
4301 | internal_a.o_sntoc = xcoff_data (abfd)->sntoc; |
||
4302 | |||
4303 | internal_a.o_modtype = xcoff_data (abfd)->modtype; |
||
4304 | if (xcoff_data (abfd)->cputype != -1) |
||
4305 | internal_a.o_cputype = xcoff_data (abfd)->cputype; |
||
4306 | else |
||
4307 | { |
||
4308 | switch (bfd_get_arch (abfd)) |
||
4309 | { |
||
4310 | case bfd_arch_rs6000: |
||
4311 | internal_a.o_cputype = 4; |
||
4312 | break; |
||
4313 | case bfd_arch_powerpc: |
||
4314 | if (bfd_get_mach (abfd) == bfd_mach_ppc) |
||
4315 | internal_a.o_cputype = 3; |
||
4316 | else |
||
4317 | internal_a.o_cputype = 1; |
||
4318 | break; |
||
4319 | default: |
||
4320 | abort (); |
||
4321 | } |
||
4322 | } |
||
4323 | internal_a.o_maxstack = xcoff_data (abfd)->maxstack; |
||
4324 | internal_a.o_maxdata = xcoff_data (abfd)->maxdata; |
||
4325 | } |
||
4326 | #endif |
||
4327 | |||
4328 | /* Now write them. */ |
||
4329 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) |
||
4330 | return FALSE; |
||
4331 | |||
4332 | { |
||
4333 | char * buff; |
||
4334 | bfd_size_type amount = bfd_coff_filhsz (abfd); |
||
4335 | |||
4336 | buff = (char *) bfd_malloc (amount); |
||
4337 | if (buff == NULL) |
||
4338 | return FALSE; |
||
4339 | |||
4340 | bfd_coff_swap_filehdr_out (abfd, & internal_f, buff); |
||
4341 | amount = bfd_bwrite (buff, amount, abfd); |
||
4342 | |||
4343 | free (buff); |
||
4344 | |||
4345 | if (amount != bfd_coff_filhsz (abfd)) |
||
4346 | return FALSE; |
||
4347 | } |
||
4348 | |||
4349 | if (abfd->flags & EXEC_P) |
||
4350 | { |
||
4351 | /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR. |
||
4352 | include/coff/pe.h sets AOUTSZ == sizeof (PEAOUTHDR)). */ |
||
4353 | char * buff; |
||
4354 | bfd_size_type amount = bfd_coff_aoutsz (abfd); |
||
4355 | |||
4356 | buff = (char *) bfd_malloc (amount); |
||
4357 | if (buff == NULL) |
||
4358 | return FALSE; |
||
4359 | |||
4360 | coff_swap_aouthdr_out (abfd, & internal_a, buff); |
||
4361 | amount = bfd_bwrite (buff, amount, abfd); |
||
4362 | |||
4363 | free (buff); |
||
4364 | |||
4365 | if (amount != bfd_coff_aoutsz (abfd)) |
||
4366 | return FALSE; |
||
4367 | |||
4368 | #ifdef COFF_IMAGE_WITH_PE |
||
4369 | if (! coff_apply_checksum (abfd)) |
||
4370 | return FALSE; |
||
4371 | #endif |
||
4372 | } |
||
4373 | #ifdef RS6000COFF_C |
||
4374 | else |
||
4375 | { |
||
4376 | AOUTHDR buff; |
||
4377 | size_t size; |
||
4378 | |||
4379 | /* XCOFF seems to always write at least a small a.out header. */ |
||
4380 | coff_swap_aouthdr_out (abfd, & internal_a, & buff); |
||
4381 | if (xcoff_data (abfd)->full_aouthdr) |
||
4382 | size = bfd_coff_aoutsz (abfd); |
||
4383 | else |
||
4384 | size = SMALL_AOUTSZ; |
||
4385 | if (bfd_bwrite (& buff, (bfd_size_type) size, abfd) != size) |
||
4386 | return FALSE; |
||
4387 | } |
||
4388 | #endif |
||
4389 | |||
4390 | return TRUE; |
||
4391 | } |
||
4392 | |||
4393 | static bfd_boolean |
||
4394 | coff_set_section_contents (bfd * abfd, |
||
4395 | sec_ptr section, |
||
4396 | const void * location, |
||
4397 | file_ptr offset, |
||
4398 | bfd_size_type count) |
||
4399 | { |
||
4400 | if (! abfd->output_has_begun) /* Set by bfd.c handler. */ |
||
4401 | { |
||
4402 | if (! coff_compute_section_file_positions (abfd)) |
||
4403 | return FALSE; |
||
4404 | } |
||
4405 | |||
4406 | #if defined(_LIB) && !defined(TARG_AUX) |
||
4407 | /* The physical address field of a .lib section is used to hold the |
||
4408 | number of shared libraries in the section. This code counts the |
||
4409 | number of sections being written, and increments the lma field |
||
4410 | with the number. |
||
4411 | |||
4412 | I have found no documentation on the contents of this section. |
||
4413 | Experimentation indicates that the section contains zero or more |
||
4414 | records, each of which has the following structure: |
||
4415 | |||
4416 | - a (four byte) word holding the length of this record, in words, |
||
4417 | - a word that always seems to be set to "2", |
||
4418 | - the path to a shared library, null-terminated and then padded |
||
4419 | to a whole word boundary. |
||
4420 | |||
4421 | bfd_assert calls have been added to alert if an attempt is made |
||
4422 | to write a section which doesn't follow these assumptions. The |
||
4423 | code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe |
||
4424 |
|
||
4425 | |||
4426 | Gvran Uddeborg |
||
4427 | if (strcmp (section->name, _LIB) == 0) |
||
4428 | { |
||
4429 | bfd_byte *rec, *recend; |
||
4430 | |||
4431 | rec = (bfd_byte *) location; |
||
4432 | recend = rec + count; |
||
4433 | while (rec < recend) |
||
4434 | { |
||
4435 | ++section->lma; |
||
4436 | rec += bfd_get_32 (abfd, rec) * 4; |
||
4437 | } |
||
4438 | |||
4439 | BFD_ASSERT (rec == recend); |
||
4440 | } |
||
4441 | #endif |
||
4442 | |||
4443 | /* Don't write out bss sections - one way to do this is to |
||
4444 | see if the filepos has not been set. */ |
||
4445 | if (section->filepos == 0) |
||
4446 | return TRUE; |
||
4447 | |||
4448 | if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0) |
||
4449 | return FALSE; |
||
4450 | |||
4451 | if (count == 0) |
||
4452 | return TRUE; |
||
4453 | |||
4454 | return bfd_bwrite (location, count, abfd) == count; |
||
4455 | } |
||
4456 | |||
4457 | static void * |
||
4458 | buy_and_read (bfd *abfd, file_ptr where, bfd_size_type size) |
||
4459 | { |
||
4460 | void * area = bfd_alloc (abfd, size); |
||
4461 | |||
4462 | if (!area) |
||
4463 | return (NULL); |
||
4464 | if (bfd_seek (abfd, where, SEEK_SET) != 0 |
||
4465 | || bfd_bread (area, size, abfd) != size) |
||
4466 | return (NULL); |
||
4467 | return (area); |
||
4468 | } |
||
4469 | |||
4470 | /* |
||
4471 | SUBSUBSECTION |
||
4472 | Reading linenumbers |
||
4473 | |||
4474 | Creating the linenumber table is done by reading in the entire |
||
4475 | coff linenumber table, and creating another table for internal use. |
||
4476 | |||
4477 | A coff linenumber table is structured so that each function |
||
4478 | is marked as having a line number of 0. Each line within the |
||
4479 | function is an offset from the first line in the function. The |
||
4480 | base of the line number information for the table is stored in |
||
4481 | the symbol associated with the function. |
||
4482 | |||
4483 | Note: The PE format uses line number 0 for a flag indicating a |
||
4484 | new source file. |
||
4485 | |||
4486 | The information is copied from the external to the internal |
||
4487 | table, and each symbol which marks a function is marked by |
||
4488 | pointing its... |
||
4489 | |||
4490 | How does this work ? |
||
4491 | */ |
||
4492 | |||
4493 | static int |
||
4494 | coff_sort_func_alent (const void * arg1, const void * arg2) |
||
4495 | { |
||
4496 | const alent *al1 = *(const alent **) arg1; |
||
4497 | const alent *al2 = *(const alent **) arg2; |
||
4498 | const coff_symbol_type *s1 = (const coff_symbol_type *) (al1->u.sym); |
||
4499 | const coff_symbol_type *s2 = (const coff_symbol_type *) (al2->u.sym); |
||
4500 | |||
4501 | if (s1->symbol.value < s2->symbol.value) |
||
4502 | return -1; |
||
4503 | else if (s1->symbol.value > s2->symbol.value) |
||
4504 | return 1; |
||
4505 | |||
4506 | return 0; |
||
4507 | } |
||
4508 | |||
4509 | static bfd_boolean |
||
4510 | coff_slurp_line_table (bfd *abfd, asection *asect) |
||
4511 | { |
||
4512 | LINENO *native_lineno; |
||
4513 | alent *lineno_cache; |
||
4514 | bfd_size_type amt; |
||
4515 | unsigned int counter; |
||
4516 | alent *cache_ptr; |
||
4517 | bfd_vma prev_offset = 0; |
||
4518 | int ordered = 1; |
||
4519 | unsigned int nbr_func; |
||
4520 | LINENO *src; |
||
4521 | |||
4522 | BFD_ASSERT (asect->lineno == NULL); |
||
4523 | |||
4524 | amt = ((bfd_size_type) asect->lineno_count + 1) * sizeof (alent); |
||
4525 | lineno_cache = (alent *) bfd_alloc (abfd, amt); |
||
4526 | if (lineno_cache == NULL) |
||
4527 | return FALSE; |
||
4528 | |||
4529 | amt = (bfd_size_type) bfd_coff_linesz (abfd) * asect->lineno_count; |
||
4530 | native_lineno = (LINENO *) buy_and_read (abfd, asect->line_filepos, amt); |
||
4531 | if (native_lineno == NULL) |
||
4532 | { |
||
4533 | (*_bfd_error_handler) |
||
4534 | (_("%B: warning: line number table read failed"), abfd); |
||
4535 | bfd_release (abfd, lineno_cache); |
||
4536 | return FALSE; |
||
4537 | } |
||
4538 | |||
4539 | cache_ptr = lineno_cache; |
||
4540 | asect->lineno = lineno_cache; |
||
4541 | src = native_lineno; |
||
4542 | nbr_func = 0; |
||
4543 | |||
4544 | for (counter = 0; counter < asect->lineno_count; counter++) |
||
4545 | { |
||
4546 | struct internal_lineno dst; |
||
4547 | |||
4548 | bfd_coff_swap_lineno_in (abfd, src, &dst); |
||
4549 | cache_ptr->line_number = dst.l_lnno; |
||
4550 | |||
4551 | if (cache_ptr->line_number == 0) |
||
4552 | { |
||
4553 | bfd_boolean warned; |
||
4554 | bfd_signed_vma symndx; |
||
4555 | coff_symbol_type *sym; |
||
4556 | |||
4557 | nbr_func++; |
||
4558 | warned = FALSE; |
||
4559 | symndx = dst.l_addr.l_symndx; |
||
4560 | if (symndx < 0 |
||
4561 | || (bfd_vma) symndx >= obj_raw_syment_count (abfd)) |
||
4562 | { |
||
4563 | (*_bfd_error_handler) |
||
4564 | (_("%B: warning: illegal symbol index %ld in line numbers"), |
||
4565 | abfd, (long) symndx); |
||
4566 | symndx = 0; |
||
4567 | warned = TRUE; |
||
4568 | } |
||
4569 | |||
4570 | /* FIXME: We should not be casting between ints and |
||
4571 | pointers like this. */ |
||
4572 | sym = ((coff_symbol_type *) |
||
4573 | ((symndx + obj_raw_syments (abfd)) |
||
4574 | ->u.syment._n._n_n._n_zeroes)); |
||
4575 | cache_ptr->u.sym = (asymbol *) sym; |
||
4576 | if (sym->lineno != NULL && ! warned) |
||
4577 | (*_bfd_error_handler) |
||
4578 | (_("%B: warning: duplicate line number information for `%s'"), |
||
4579 | abfd, bfd_asymbol_name (&sym->symbol)); |
||
4580 | |||
4581 | sym->lineno = cache_ptr; |
||
4582 | if (sym->symbol.value < prev_offset) |
||
4583 | ordered = 0; |
||
4584 | prev_offset = sym->symbol.value; |
||
4585 | } |
||
4586 | else |
||
4587 | cache_ptr->u.offset = dst.l_addr.l_paddr |
||
4588 | - bfd_section_vma (abfd, asect); |
||
4589 | |||
4590 | cache_ptr++; |
||
4591 | src++; |
||
4592 | } |
||
4593 | cache_ptr->line_number = 0; |
||
4594 | bfd_release (abfd, native_lineno); |
||
4595 | |||
4596 | /* On some systems (eg AIX5.3) the lineno table may not be sorted. */ |
||
4597 | if (!ordered) |
||
4598 | { |
||
4599 | /* Sort the table. */ |
||
4600 | alent **func_table; |
||
4601 | alent *n_lineno_cache; |
||
4602 | |||
4603 | /* Create a table of functions. */ |
||
4604 | func_table = (alent **) bfd_alloc (abfd, nbr_func * sizeof (alent *)); |
||
4605 | if (func_table != NULL) |
||
4606 | { |
||
4607 | alent **p = func_table; |
||
4608 | unsigned int i; |
||
4609 | |||
4610 | for (i = 0; i < counter; i++) |
||
4611 | if (lineno_cache[i].line_number == 0) |
||
4612 | *p++ = &lineno_cache[i]; |
||
4613 | |||
4614 | /* Sort by functions. */ |
||
4615 | qsort (func_table, nbr_func, sizeof (alent *), coff_sort_func_alent); |
||
4616 | |||
4617 | /* Create the new sorted table. */ |
||
4618 | amt = ((bfd_size_type) asect->lineno_count + 1) * sizeof (alent); |
||
4619 | n_lineno_cache = (alent *) bfd_alloc (abfd, amt); |
||
4620 | if (n_lineno_cache != NULL) |
||
4621 | { |
||
4622 | alent *n_cache_ptr = n_lineno_cache; |
||
4623 | |||
4624 | for (i = 0; i < nbr_func; i++) |
||
4625 | { |
||
4626 | coff_symbol_type *sym; |
||
4627 | alent *old_ptr = func_table[i]; |
||
4628 | |||
4629 | /* Copy the function entry and update it. */ |
||
4630 | *n_cache_ptr = *old_ptr; |
||
4631 | sym = (coff_symbol_type *)n_cache_ptr->u.sym; |
||
4632 | sym->lineno = n_cache_ptr; |
||
4633 | n_cache_ptr++; |
||
4634 | old_ptr++; |
||
4635 | |||
4636 | /* Copy the line number entries. */ |
||
4637 | while (old_ptr->line_number != 0) |
||
4638 | *n_cache_ptr++ = *old_ptr++; |
||
4639 | } |
||
4640 | n_cache_ptr->line_number = 0; |
||
4641 | memcpy (lineno_cache, n_lineno_cache, amt); |
||
4642 | } |
||
4643 | bfd_release (abfd, func_table); |
||
4644 | } |
||
4645 | } |
||
4646 | |||
4647 | return TRUE; |
||
4648 | } |
||
4649 | |||
4650 | /* Slurp in the symbol table, converting it to generic form. Note |
||
4651 | that if coff_relocate_section is defined, the linker will read |
||
4652 | symbols via coff_link_add_symbols, rather than via this routine. */ |
||
4653 | |||
4654 | static bfd_boolean |
||
4655 | coff_slurp_symbol_table (bfd * abfd) |
||
4656 | { |
||
4657 | combined_entry_type *native_symbols; |
||
4658 | coff_symbol_type *cached_area; |
||
4659 | unsigned int *table_ptr; |
||
4660 | bfd_size_type amt; |
||
4661 | unsigned int number_of_symbols = 0; |
||
4662 | |||
4663 | if (obj_symbols (abfd)) |
||
4664 | return TRUE; |
||
4665 | |||
4666 | /* Read in the symbol table. */ |
||
4667 | if ((native_symbols = coff_get_normalized_symtab (abfd)) == NULL) |
||
4668 | return FALSE; |
||
4669 | |||
4670 | /* Allocate enough room for all the symbols in cached form. */ |
||
4671 | amt = obj_raw_syment_count (abfd); |
||
4672 | amt *= sizeof (coff_symbol_type); |
||
4673 | cached_area = (coff_symbol_type *) bfd_alloc (abfd, amt); |
||
4674 | if (cached_area == NULL) |
||
4675 | return FALSE; |
||
4676 | |||
4677 | amt = obj_raw_syment_count (abfd); |
||
4678 | amt *= sizeof (unsigned int); |
||
4679 | table_ptr = (unsigned int *) bfd_alloc (abfd, amt); |
||
4680 | |||
4681 | if (table_ptr == NULL) |
||
4682 | return FALSE; |
||
4683 | else |
||
4684 | { |
||
4685 | coff_symbol_type *dst = cached_area; |
||
4686 | unsigned int last_native_index = obj_raw_syment_count (abfd); |
||
4687 | unsigned int this_index = 0; |
||
4688 | |||
4689 | while (this_index < last_native_index) |
||
4690 | { |
||
4691 | combined_entry_type *src = native_symbols + this_index; |
||
4692 | table_ptr[this_index] = number_of_symbols; |
||
4693 | dst->symbol.the_bfd = abfd; |
||
4694 | |||
4695 | dst->symbol.name = (char *) (src->u.syment._n._n_n._n_offset); |
||
4696 | /* We use the native name field to point to the cached field. */ |
||
4697 | src->u.syment._n._n_n._n_zeroes = (bfd_hostptr_t) dst; |
||
4698 | dst->symbol.section = coff_section_from_bfd_index (abfd, |
||
4699 | src->u.syment.n_scnum); |
||
4700 | dst->symbol.flags = 0; |
||
4701 | dst->done_lineno = FALSE; |
||
4702 | |||
4703 | switch (src->u.syment.n_sclass) |
||
4704 | { |
||
4705 | #ifdef I960 |
||
4706 | case C_LEAFEXT: |
||
4707 | /* Fall through to next case. */ |
||
4708 | #endif |
||
4709 | |||
4710 | case C_EXT: |
||
4711 | case C_WEAKEXT: |
||
4712 | #if defined ARM |
||
4713 | case C_THUMBEXT: |
||
4714 | case C_THUMBEXTFUNC: |
||
4715 | #endif |
||
4716 | #ifdef RS6000COFF_C |
||
4717 | case C_HIDEXT: |
||
4718 | #endif |
||
4719 | #ifdef C_SYSTEM |
||
4720 | case C_SYSTEM: /* System Wide variable. */ |
||
4721 | #endif |
||
4722 | #ifdef COFF_WITH_PE |
||
4723 | /* In PE, 0x68 (104) denotes a section symbol. */ |
||
4724 | case C_SECTION: |
||
4725 | /* In PE, 0x69 (105) denotes a weak external symbol. */ |
||
4726 | case C_NT_WEAK: |
||
4727 | #endif |
||
4728 | switch (coff_classify_symbol (abfd, &src->u.syment)) |
||
4729 | { |
||
4730 | case COFF_SYMBOL_GLOBAL: |
||
4731 | dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL; |
||
4732 | #if defined COFF_WITH_PE |
||
4733 | /* PE sets the symbol to a value relative to the |
||
4734 | start of the section. */ |
||
4735 | dst->symbol.value = src->u.syment.n_value; |
||
4736 | #else |
||
4737 | dst->symbol.value = (src->u.syment.n_value |
||
4738 | - dst->symbol.section->vma); |
||
4739 | #endif |
||
4740 | if (ISFCN ((src->u.syment.n_type))) |
||
4741 | /* A function ext does not go at the end of a |
||
4742 | file. */ |
||
4743 | dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION; |
||
4744 | break; |
||
4745 | |||
4746 | case COFF_SYMBOL_COMMON: |
||
4747 | dst->symbol.section = bfd_com_section_ptr; |
||
4748 | dst->symbol.value = src->u.syment.n_value; |
||
4749 | break; |
||
4750 | |||
4751 | case COFF_SYMBOL_UNDEFINED: |
||
4752 | dst->symbol.section = bfd_und_section_ptr; |
||
4753 | dst->symbol.value = 0; |
||
4754 | break; |
||
4755 | |||
4756 | case COFF_SYMBOL_PE_SECTION: |
||
4757 | dst->symbol.flags |= BSF_EXPORT | BSF_SECTION_SYM; |
||
4758 | dst->symbol.value = 0; |
||
4759 | break; |
||
4760 | |||
4761 | case COFF_SYMBOL_LOCAL: |
||
4762 | dst->symbol.flags = BSF_LOCAL; |
||
4763 | #if defined COFF_WITH_PE |
||
4764 | /* PE sets the symbol to a value relative to the |
||
4765 | start of the section. */ |
||
4766 | dst->symbol.value = src->u.syment.n_value; |
||
4767 | #else |
||
4768 | dst->symbol.value = (src->u.syment.n_value |
||
4769 | - dst->symbol.section->vma); |
||
4770 | #endif |
||
4771 | if (ISFCN ((src->u.syment.n_type))) |
||
4772 | dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION; |
||
4773 | break; |
||
4774 | } |
||
4775 | |||
4776 | #ifdef RS6000COFF_C |
||
4777 | /* A symbol with a csect entry should not go at the end. */ |
||
4778 | if (src->u.syment.n_numaux > 0) |
||
4779 | dst->symbol.flags |= BSF_NOT_AT_END; |
||
4780 | #endif |
||
4781 | |||
4782 | #ifdef COFF_WITH_PE |
||
4783 | if (src->u.syment.n_sclass == C_NT_WEAK) |
||
4784 | dst->symbol.flags |= BSF_WEAK; |
||
4785 | |||
4786 | if (src->u.syment.n_sclass == C_SECTION |
||
4787 | && src->u.syment.n_scnum > 0) |
||
4788 | dst->symbol.flags = BSF_LOCAL; |
||
4789 | #endif |
||
4790 | if (src->u.syment.n_sclass == C_WEAKEXT) |
||
4791 | dst->symbol.flags |= BSF_WEAK; |
||
4792 | |||
4793 | break; |
||
4794 | |||
4795 | case C_STAT: /* Static. */ |
||
4796 | #ifdef I960 |
||
4797 | case C_LEAFSTAT: /* Static leaf procedure. */ |
||
4798 | #endif |
||
4799 | #if defined ARM |
||
4800 | case C_THUMBSTAT: /* Thumb static. */ |
||
4801 | case C_THUMBLABEL: /* Thumb label. */ |
||
4802 | case C_THUMBSTATFUNC:/* Thumb static function. */ |
||
4803 | #endif |
||
4804 | #ifdef RS6000COFF_C |
||
4805 | case C_DWARF: /* A label in a dwarf section. */ |
||
4806 | case C_INFO: /* A label in a comment section. */ |
||
4807 | #endif |
||
4808 | case C_LABEL: /* Label. */ |
||
4809 | if (src->u.syment.n_scnum == N_DEBUG) |
||
4810 | dst->symbol.flags = BSF_DEBUGGING; |
||
4811 | else |
||
4812 | dst->symbol.flags = BSF_LOCAL; |
||
4813 | |||
4814 | /* Base the value as an index from the base of the |
||
4815 | section, if there is one. */ |
||
4816 | if (dst->symbol.section) |
||
4817 | { |
||
4818 | #if defined COFF_WITH_PE |
||
4819 | /* PE sets the symbol to a value relative to the |
||
4820 | start of the section. */ |
||
4821 | dst->symbol.value = src->u.syment.n_value; |
||
4822 | #else |
||
4823 | dst->symbol.value = (src->u.syment.n_value |
||
4824 | - dst->symbol.section->vma); |
||
4825 | #endif |
||
4826 | } |
||
4827 | else |
||
4828 | dst->symbol.value = src->u.syment.n_value; |
||
4829 | break; |
||
4830 | |||
4831 | case C_MOS: /* Member of structure. */ |
||
4832 | case C_EOS: /* End of structure. */ |
||
4833 | case C_REGPARM: /* Register parameter. */ |
||
4834 | case C_REG: /* register variable. */ |
||
4835 | /* C_AUTOARG conflicts with TI COFF C_UEXT. */ |
||
4836 | #if !defined (TIC80COFF) && !defined (TICOFF) |
||
4837 | #ifdef C_AUTOARG |
||
4838 | case C_AUTOARG: /* 960-specific storage class. */ |
||
4839 | #endif |
||
4840 | #endif |
||
4841 | case C_TPDEF: /* Type definition. */ |
||
4842 | case C_ARG: |
||
4843 | case C_AUTO: /* Automatic variable. */ |
||
4844 | case C_FIELD: /* Bit field. */ |
||
4845 | case C_ENTAG: /* Enumeration tag. */ |
||
4846 | case C_MOE: /* Member of enumeration. */ |
||
4847 | case C_MOU: /* Member of union. */ |
||
4848 | case C_UNTAG: /* Union tag. */ |
||
4849 | dst->symbol.flags = BSF_DEBUGGING; |
||
4850 | dst->symbol.value = (src->u.syment.n_value); |
||
4851 | break; |
||
4852 | |||
4853 | case C_FILE: /* File name. */ |
||
4854 | case C_STRTAG: /* Structure tag. */ |
||
4855 | #ifdef RS6000COFF_C |
||
4856 | case C_GSYM: |
||
4857 | case C_LSYM: |
||
4858 | case C_PSYM: |
||
4859 | case C_RSYM: |
||
4860 | case C_RPSYM: |
||
4861 | case C_STSYM: |
||
4862 | case C_TCSYM: |
||
4863 | case C_BCOMM: |
||
4864 | case C_ECOML: |
||
4865 | case C_ECOMM: |
||
4866 | case C_DECL: |
||
4867 | case C_ENTRY: |
||
4868 | case C_FUN: |
||
4869 | case C_ESTAT: |
||
4870 | #endif |
||
4871 | dst->symbol.flags = BSF_DEBUGGING; |
||
4872 | dst->symbol.value = (src->u.syment.n_value); |
||
4873 | break; |
||
4874 | |||
4875 | #ifdef RS6000COFF_C |
||
4876 | case C_BINCL: /* Beginning of include file. */ |
||
4877 | case C_EINCL: /* Ending of include file. */ |
||
4878 | /* The value is actually a pointer into the line numbers |
||
4879 | of the file. We locate the line number entry, and |
||
4880 | set the section to the section which contains it, and |
||
4881 | the value to the index in that section. */ |
||
4882 | { |
||
4883 | asection *sec; |
||
4884 | |||
4885 | dst->symbol.flags = BSF_DEBUGGING; |
||
4886 | for (sec = abfd->sections; sec != NULL; sec = sec->next) |
||
4887 | if (sec->line_filepos <= (file_ptr) src->u.syment.n_value |
||
4888 | && ((file_ptr) (sec->line_filepos |
||
4889 | + sec->lineno_count * bfd_coff_linesz (abfd)) |
||
4890 | > (file_ptr) src->u.syment.n_value)) |
||
4891 | break; |
||
4892 | if (sec == NULL) |
||
4893 | dst->symbol.value = 0; |
||
4894 | else |
||
4895 | { |
||
4896 | dst->symbol.section = sec; |
||
4897 | dst->symbol.value = ((src->u.syment.n_value |
||
4898 | - sec->line_filepos) |
||
4899 | / bfd_coff_linesz (abfd)); |
||
4900 | src->fix_line = 1; |
||
4901 | } |
||
4902 | } |
||
4903 | break; |
||
4904 | |||
4905 | case C_BSTAT: |
||
4906 | dst->symbol.flags = BSF_DEBUGGING; |
||
4907 | |||
4908 | /* The value is actually a symbol index. Save a pointer |
||
4909 | to the symbol instead of the index. FIXME: This |
||
4910 | should use a union. */ |
||
4911 | src->u.syment.n_value = |
||
4912 | (long) (intptr_t) (native_symbols + src->u.syment.n_value); |
||
4913 | dst->symbol.value = src->u.syment.n_value; |
||
4914 | src->fix_value = 1; |
||
4915 | break; |
||
4916 | #endif |
||
4917 | |||
4918 | case C_BLOCK: /* ".bb" or ".eb". */ |
||
4919 | case C_FCN: /* ".bf" or ".ef" (or PE ".lf"). */ |
||
4920 | case C_EFCN: /* Physical end of function. */ |
||
4921 | #if defined COFF_WITH_PE |
||
4922 | /* PE sets the symbol to a value relative to the start |
||
4923 | of the section. */ |
||
4924 | dst->symbol.value = src->u.syment.n_value; |
||
4925 | if (strcmp (dst->symbol.name, ".bf") != 0) |
||
4926 | { |
||
4927 | /* PE uses funny values for .ef and .lf; don't |
||
4928 | relocate them. */ |
||
4929 | dst->symbol.flags = BSF_DEBUGGING; |
||
4930 | } |
||
4931 | else |
||
4932 | dst->symbol.flags = BSF_DEBUGGING | BSF_DEBUGGING_RELOC; |
||
4933 | #else |
||
4934 | /* Base the value as an index from the base of the |
||
4935 | section. */ |
||
4936 | dst->symbol.flags = BSF_LOCAL; |
||
4937 | dst->symbol.value = (src->u.syment.n_value |
||
4938 | - dst->symbol.section->vma); |
||
4939 | #endif |
||
4940 | break; |
||
4941 | |||
4942 | case C_STATLAB: /* Static load time label. */ |
||
4943 | dst->symbol.value = src->u.syment.n_value; |
||
4944 | dst->symbol.flags = BSF_GLOBAL; |
||
4945 | break; |
||
4946 | |||
4947 | case C_NULL: |
||
4948 | /* PE DLLs sometimes have zeroed out symbols for some |
||
4949 | reason. Just ignore them without a warning. */ |
||
4950 | if (src->u.syment.n_type == 0 |
||
4951 | && src->u.syment.n_value == 0 |
||
4952 | && src->u.syment.n_scnum == 0) |
||
4953 | break; |
||
4954 | #ifdef RS6000COFF_C |
||
4955 | /* XCOFF specific: deleted entry. */ |
||
4956 | if (src->u.syment.n_value == C_NULL_VALUE) |
||
4957 | break; |
||
4958 | #endif |
||
4959 | /* Fall through. */ |
||
4960 | case C_EXTDEF: /* External definition. */ |
||
4961 | case C_ULABEL: /* Undefined label. */ |
||
4962 | case C_USTATIC: /* Undefined static. */ |
||
4963 | #ifndef COFF_WITH_PE |
||
4964 | /* C_LINE in regular coff is 0x68. NT has taken over this storage |
||
4965 | class to represent a section symbol. */ |
||
4966 | case C_LINE: /* line # reformatted as symbol table entry. */ |
||
4967 | /* NT uses 0x67 for a weak symbol, not C_ALIAS. */ |
||
4968 | case C_ALIAS: /* Duplicate tag. */ |
||
4969 | #endif |
||
4970 | /* New storage classes for TI COFF. */ |
||
4971 | #if defined(TIC80COFF) || defined(TICOFF) |
||
4972 | case C_UEXT: /* Tentative external definition. */ |
||
4973 | #endif |
||
4974 | case C_EXTLAB: /* External load time label. */ |
||
4975 | case C_HIDDEN: /* Ext symbol in dmert public lib. */ |
||
4976 | default: |
||
4977 | (*_bfd_error_handler) |
||
4978 | (_("%B: Unrecognized storage class %d for %s symbol `%s'"), |
||
4979 | abfd, src->u.syment.n_sclass, |
||
4980 | dst->symbol.section->name, dst->symbol.name); |
||
4981 | dst->symbol.flags = BSF_DEBUGGING; |
||
4982 | dst->symbol.value = (src->u.syment.n_value); |
||
4983 | break; |
||
4984 | } |
||
4985 | |||
4986 | dst->native = src; |
||
4987 | |||
4988 | dst->symbol.udata.i = 0; |
||
4989 | dst->lineno = NULL; |
||
4990 | this_index += (src->u.syment.n_numaux) + 1; |
||
4991 | dst++; |
||
4992 | number_of_symbols++; |
||
4993 | } |
||
4994 | } |
||
4995 | |||
4996 | obj_symbols (abfd) = cached_area; |
||
4997 | obj_raw_syments (abfd) = native_symbols; |
||
4998 | |||
4999 | bfd_get_symcount (abfd) = number_of_symbols; |
||
5000 | obj_convert (abfd) = table_ptr; |
||
5001 | /* Slurp the line tables for each section too. */ |
||
5002 | { |
||
5003 | asection *p; |
||
5004 | |||
5005 | p = abfd->sections; |
||
5006 | while (p) |
||
5007 | { |
||
5008 | coff_slurp_line_table (abfd, p); |
||
5009 | p = p->next; |
||
5010 | } |
||
5011 | } |
||
5012 | |||
5013 | return TRUE; |
||
5014 | } |
||
5015 | |||
5016 | /* Classify a COFF symbol. A couple of targets have globally visible |
||
5017 | symbols which are not class C_EXT, and this handles those. It also |
||
5018 | recognizes some special PE cases. */ |
||
5019 | |||
5020 | static enum coff_symbol_classification |
||
5021 | coff_classify_symbol (bfd *abfd, |
||
5022 | struct internal_syment *syment) |
||
5023 | { |
||
5024 | /* FIXME: This partially duplicates the switch in |
||
5025 | coff_slurp_symbol_table. */ |
||
5026 | switch (syment->n_sclass) |
||
5027 | { |
||
5028 | case C_EXT: |
||
5029 | case C_WEAKEXT: |
||
5030 | #ifdef I960 |
||
5031 | case C_LEAFEXT: |
||
5032 | #endif |
||
5033 | #ifdef ARM |
||
5034 | case C_THUMBEXT: |
||
5035 | case C_THUMBEXTFUNC: |
||
5036 | #endif |
||
5037 | #ifdef C_SYSTEM |
||
5038 | case C_SYSTEM: |
||
5039 | #endif |
||
5040 | #ifdef COFF_WITH_PE |
||
5041 | case C_NT_WEAK: |
||
5042 | #endif |
||
5043 | if (syment->n_scnum == 0) |
||
5044 | { |
||
5045 | if (syment->n_value == 0) |
||
5046 | return COFF_SYMBOL_UNDEFINED; |
||
5047 | else |
||
5048 | return COFF_SYMBOL_COMMON; |
||
5049 | } |
||
5050 | return COFF_SYMBOL_GLOBAL; |
||
5051 | |||
5052 | default: |
||
5053 | break; |
||
5054 | } |
||
5055 | |||
5056 | #ifdef COFF_WITH_PE |
||
5057 | if (syment->n_sclass == C_STAT) |
||
5058 | { |
||
5059 | if (syment->n_scnum == 0) |
||
5060 | /* The Microsoft compiler sometimes generates these if a |
||
5061 | small static function is inlined every time it is used. |
||
5062 | The function is discarded, but the symbol table entry |
||
5063 | remains. */ |
||
5064 | return COFF_SYMBOL_LOCAL; |
||
5065 | |||
5066 | #ifdef STRICT_PE_FORMAT |
||
5067 | /* This is correct for Microsoft generated objects, but it |
||
5068 | breaks gas generated objects. */ |
||
5069 | if (syment->n_value == 0) |
||
5070 | { |
||
5071 | asection *sec; |
||
5072 | char buf[SYMNMLEN + 1]; |
||
5073 | |||
5074 | sec = coff_section_from_bfd_index (abfd, syment->n_scnum); |
||
5075 | if (sec != NULL |
||
5076 | && (strcmp (bfd_get_section_name (abfd, sec), |
||
5077 | _bfd_coff_internal_syment_name (abfd, syment, buf)) |
||
5078 | == 0)) |
||
5079 | return COFF_SYMBOL_PE_SECTION; |
||
5080 | } |
||
5081 | #endif |
||
5082 | |||
5083 | return COFF_SYMBOL_LOCAL; |
||
5084 | } |
||
5085 | |||
5086 | if (syment->n_sclass == C_SECTION) |
||
5087 | { |
||
5088 | /* In some cases in a DLL generated by the Microsoft linker, the |
||
5089 | n_value field will contain garbage. FIXME: This should |
||
5090 | probably be handled by the swapping function instead. */ |
||
5091 | syment->n_value = 0; |
||
5092 | if (syment->n_scnum == 0) |
||
5093 | return COFF_SYMBOL_UNDEFINED; |
||
5094 | return COFF_SYMBOL_PE_SECTION; |
||
5095 | } |
||
5096 | #endif /* COFF_WITH_PE */ |
||
5097 | |||
5098 | /* If it is not a global symbol, we presume it is a local symbol. */ |
||
5099 | if (syment->n_scnum == 0) |
||
5100 | { |
||
5101 | char buf[SYMNMLEN + 1]; |
||
5102 | |||
5103 | (*_bfd_error_handler) |
||
5104 | (_("warning: %B: local symbol `%s' has no section"), |
||
5105 | abfd, _bfd_coff_internal_syment_name (abfd, syment, buf)); |
||
5106 | } |
||
5107 | |||
5108 | return COFF_SYMBOL_LOCAL; |
||
5109 | } |
||
5110 | |||
5111 | /* |
||
5112 | SUBSUBSECTION |
||
5113 | Reading relocations |
||
5114 | |||
5115 | Coff relocations are easily transformed into the internal BFD form |
||
5116 | (@code{arelent}). |
||
5117 | |||
5118 | Reading a coff relocation table is done in the following stages: |
||
5119 | |||
5120 | o Read the entire coff relocation table into memory. |
||
5121 | |||
5122 | o Process each relocation in turn; first swap it from the |
||
5123 | external to the internal form. |
||
5124 | |||
5125 | o Turn the symbol referenced in the relocation's symbol index |
||
5126 | into a pointer into the canonical symbol table. |
||
5127 | This table is the same as the one returned by a call to |
||
5128 | @code{bfd_canonicalize_symtab}. The back end will call that |
||
5129 | routine and save the result if a canonicalization hasn't been done. |
||
5130 | |||
5131 | o The reloc index is turned into a pointer to a howto |
||
5132 | structure, in a back end specific way. For instance, the 386 |
||
5133 | and 960 use the @code{r_type} to directly produce an index |
||
5134 | into a howto table vector; the 88k subtracts a number from the |
||
5135 | @code{r_type} field and creates an addend field. |
||
5136 | */ |
||
5137 | |||
5138 | #ifndef CALC_ADDEND |
||
5139 | #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \ |
||
5140 | { \ |
||
5141 | coff_symbol_type *coffsym = NULL; \ |
||
5142 | \ |
||
5143 | if (ptr && bfd_asymbol_bfd (ptr) != abfd) \ |
||
5144 | coffsym = (obj_symbols (abfd) \ |
||
5145 | + (cache_ptr->sym_ptr_ptr - symbols)); \ |
||
5146 | else if (ptr) \ |
||
5147 | coffsym = coff_symbol_from (abfd, ptr); \ |
||
5148 | if (coffsym != NULL \ |
||
5149 | && coffsym->native->u.syment.n_scnum == 0) \ |
||
5150 | cache_ptr->addend = 0; \ |
||
5151 | else if (ptr && bfd_asymbol_bfd (ptr) == abfd \ |
||
5152 | && ptr->section != NULL) \ |
||
5153 | cache_ptr->addend = - (ptr->section->vma + ptr->value); \ |
||
5154 | else \ |
||
5155 | cache_ptr->addend = 0; \ |
||
5156 | } |
||
5157 | #endif |
||
5158 | |||
5159 | static bfd_boolean |
||
5160 | coff_slurp_reloc_table (bfd * abfd, sec_ptr asect, asymbol ** symbols) |
||
5161 | { |
||
5162 | RELOC *native_relocs; |
||
5163 | arelent *reloc_cache; |
||
5164 | arelent *cache_ptr; |
||
5165 | unsigned int idx; |
||
5166 | bfd_size_type amt; |
||
5167 | |||
5168 | if (asect->relocation) |
||
5169 | return TRUE; |
||
5170 | if (asect->reloc_count == 0) |
||
5171 | return TRUE; |
||
5172 | if (asect->flags & SEC_CONSTRUCTOR) |
||
5173 | return TRUE; |
||
5174 | if (!coff_slurp_symbol_table (abfd)) |
||
5175 | return FALSE; |
||
5176 | |||
5177 | amt = (bfd_size_type) bfd_coff_relsz (abfd) * asect->reloc_count; |
||
5178 | native_relocs = (RELOC *) buy_and_read (abfd, asect->rel_filepos, amt); |
||
5179 | amt = (bfd_size_type) asect->reloc_count * sizeof (arelent); |
||
5180 | reloc_cache = (arelent *) bfd_alloc (abfd, amt); |
||
5181 | |||
5182 | if (reloc_cache == NULL || native_relocs == NULL) |
||
5183 | return FALSE; |
||
5184 | |||
5185 | for (idx = 0; idx < asect->reloc_count; idx++) |
||
5186 | { |
||
5187 | struct internal_reloc dst; |
||
5188 | struct external_reloc *src; |
||
5189 | #ifndef RELOC_PROCESSING |
||
5190 | asymbol *ptr; |
||
5191 | #endif |
||
5192 | |||
5193 | cache_ptr = reloc_cache + idx; |
||
5194 | src = native_relocs + idx; |
||
5195 | |||
5196 | dst.r_offset = 0; |
||
5197 | coff_swap_reloc_in (abfd, src, &dst); |
||
5198 | |||
5199 | #ifdef RELOC_PROCESSING |
||
5200 | RELOC_PROCESSING (cache_ptr, &dst, symbols, abfd, asect); |
||
5201 | #else |
||
5202 | cache_ptr->address = dst.r_vaddr; |
||
5203 | |||
5204 | if (dst.r_symndx != -1) |
||
5205 | { |
||
5206 | if (dst.r_symndx < 0 || dst.r_symndx >= obj_conv_table_size (abfd)) |
||
5207 | { |
||
5208 | (*_bfd_error_handler) |
||
5209 | (_("%B: warning: illegal symbol index %ld in relocs"), |
||
5210 | abfd, (long) dst.r_symndx); |
||
5211 | cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; |
||
5212 | ptr = NULL; |
||
5213 | } |
||
5214 | else |
||
5215 | { |
||
5216 | cache_ptr->sym_ptr_ptr = (symbols |
||
5217 | + obj_convert (abfd)[dst.r_symndx]); |
||
5218 | ptr = *(cache_ptr->sym_ptr_ptr); |
||
5219 | } |
||
5220 | } |
||
5221 | else |
||
5222 | { |
||
5223 | cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; |
||
5224 | ptr = NULL; |
||
5225 | } |
||
5226 | |||
5227 | /* The symbols definitions that we have read in have been |
||
5228 | relocated as if their sections started at 0. But the offsets |
||
5229 | refering to the symbols in the raw data have not been |
||
5230 | modified, so we have to have a negative addend to compensate. |
||
5231 | |||
5232 | Note that symbols which used to be common must be left alone. */ |
||
5233 | |||
5234 | /* Calculate any reloc addend by looking at the symbol. */ |
||
5235 | CALC_ADDEND (abfd, ptr, dst, cache_ptr); |
||
5236 | (void) ptr; |
||
5237 | |||
5238 | cache_ptr->address -= asect->vma; |
||
5239 | /* !! cache_ptr->section = NULL;*/ |
||
5240 | |||
5241 | /* Fill in the cache_ptr->howto field from dst.r_type. */ |
||
5242 | RTYPE2HOWTO (cache_ptr, &dst); |
||
5243 | #endif /* RELOC_PROCESSING */ |
||
5244 | |||
5245 | if (cache_ptr->howto == NULL) |
||
5246 | { |
||
5247 | (*_bfd_error_handler) |
||
5248 | (_("%B: illegal relocation type %d at address 0x%lx"), |
||
5249 | abfd, dst.r_type, (long) dst.r_vaddr); |
||
5250 | bfd_set_error (bfd_error_bad_value); |
||
5251 | return FALSE; |
||
5252 | } |
||
5253 | } |
||
5254 | |||
5255 | asect->relocation = reloc_cache; |
||
5256 | return TRUE; |
||
5257 | } |
||
5258 | |||
5259 | #ifndef coff_rtype_to_howto |
||
5260 | #ifdef RTYPE2HOWTO |
||
5261 | |||
5262 | /* Get the howto structure for a reloc. This is only used if the file |
||
5263 | including this one defines coff_relocate_section to be |
||
5264 | _bfd_coff_generic_relocate_section, so it is OK if it does not |
||
5265 | always work. It is the responsibility of the including file to |
||
5266 | make sure it is reasonable if it is needed. */ |
||
5267 | |||
5268 | static reloc_howto_type * |
||
5269 | coff_rtype_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
||
5270 | asection *sec ATTRIBUTE_UNUSED, |
||
5271 | struct internal_reloc *rel, |
||
5272 | struct coff_link_hash_entry *h ATTRIBUTE_UNUSED, |
||
5273 | struct internal_syment *sym ATTRIBUTE_UNUSED, |
||
5274 | bfd_vma *addendp ATTRIBUTE_UNUSED) |
||
5275 | { |
||
5276 | arelent genrel; |
||
5277 | |||
5278 | genrel.howto = NULL; |
||
5279 | RTYPE2HOWTO (&genrel, rel); |
||
5280 | return genrel.howto; |
||
5281 | } |
||
5282 | |||
5283 | #else /* ! defined (RTYPE2HOWTO) */ |
||
5284 | |||
5285 | #define coff_rtype_to_howto NULL |
||
5286 | |||
5287 | #endif /* ! defined (RTYPE2HOWTO) */ |
||
5288 | #endif /* ! defined (coff_rtype_to_howto) */ |
||
5289 | |||
5290 | /* This is stupid. This function should be a boolean predicate. */ |
||
5291 | |||
5292 | static long |
||
5293 | coff_canonicalize_reloc (bfd * abfd, |
||
5294 | sec_ptr section, |
||
5295 | arelent ** relptr, |
||
5296 | asymbol ** symbols) |
||
5297 | { |
||
5298 | arelent *tblptr = section->relocation; |
||
5299 | unsigned int count = 0; |
||
5300 | |||
5301 | if (section->flags & SEC_CONSTRUCTOR) |
||
5302 | { |
||
5303 | /* This section has relocs made up by us, they are not in the |
||
5304 | file, so take them out of their chain and place them into |
||
5305 | the data area provided. */ |
||
5306 | arelent_chain *chain = section->constructor_chain; |
||
5307 | |||
5308 | for (count = 0; count < section->reloc_count; count++) |
||
5309 | { |
||
5310 | *relptr++ = &chain->relent; |
||
5311 | chain = chain->next; |
||
5312 | } |
||
5313 | } |
||
5314 | else |
||
5315 | { |
||
5316 | if (! coff_slurp_reloc_table (abfd, section, symbols)) |
||
5317 | return -1; |
||
5318 | |||
5319 | tblptr = section->relocation; |
||
5320 | |||
5321 | for (; count++ < section->reloc_count;) |
||
5322 | *relptr++ = tblptr++; |
||
5323 | } |
||
5324 | *relptr = 0; |
||
5325 | return section->reloc_count; |
||
5326 | } |
||
5327 | |||
5328 | #ifndef coff_reloc16_estimate |
||
5329 | #define coff_reloc16_estimate dummy_reloc16_estimate |
||
5330 | |||
5331 | static int |
||
5332 | dummy_reloc16_estimate (bfd *abfd ATTRIBUTE_UNUSED, |
||
5333 | asection *input_section ATTRIBUTE_UNUSED, |
||
5334 | arelent *reloc ATTRIBUTE_UNUSED, |
||
5335 | unsigned int shrink ATTRIBUTE_UNUSED, |
||
5336 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED) |
||
5337 | { |
||
5338 | abort (); |
||
5339 | return 0; |
||
5340 | } |
||
5341 | |||
5342 | #endif |
||
5343 | |||
5344 | #ifndef coff_reloc16_extra_cases |
||
5345 | |||
5346 | #define coff_reloc16_extra_cases dummy_reloc16_extra_cases |
||
5347 | |||
5348 | /* This works even if abort is not declared in any header file. */ |
||
5349 | |||
5350 | static void |
||
5351 | dummy_reloc16_extra_cases (bfd *abfd ATTRIBUTE_UNUSED, |
||
5352 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED, |
||
5353 | struct bfd_link_order *link_order ATTRIBUTE_UNUSED, |
||
5354 | arelent *reloc ATTRIBUTE_UNUSED, |
||
5355 | bfd_byte *data ATTRIBUTE_UNUSED, |
||
5356 | unsigned int *src_ptr ATTRIBUTE_UNUSED, |
||
5357 | unsigned int *dst_ptr ATTRIBUTE_UNUSED) |
||
5358 | { |
||
5359 | abort (); |
||
5360 | } |
||
5361 | #endif |
||
5362 | |||
5363 | #ifndef coff_bfd_link_hash_table_free |
||
5364 | #define coff_bfd_link_hash_table_free _bfd_generic_link_hash_table_free |
||
5365 | #endif |
||
5366 | |||
5367 | /* If coff_relocate_section is defined, we can use the optimized COFF |
||
5368 | backend linker. Otherwise we must continue to use the old linker. */ |
||
5369 | |||
5370 | #ifdef coff_relocate_section |
||
5371 | |||
5372 | #ifndef coff_bfd_link_hash_table_create |
||
5373 | #define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create |
||
5374 | #endif |
||
5375 | #ifndef coff_bfd_link_add_symbols |
||
5376 | #define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols |
||
5377 | #endif |
||
5378 | #ifndef coff_bfd_final_link |
||
5379 | #define coff_bfd_final_link _bfd_coff_final_link |
||
5380 | #endif |
||
5381 | |||
5382 | #else /* ! defined (coff_relocate_section) */ |
||
5383 | |||
5384 | #define coff_relocate_section NULL |
||
5385 | #ifndef coff_bfd_link_hash_table_create |
||
5386 | #define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create |
||
5387 | #endif |
||
5388 | #ifndef coff_bfd_link_add_symbols |
||
5389 | #define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols |
||
5390 | #endif |
||
5391 | #define coff_bfd_final_link _bfd_generic_final_link |
||
5392 | |||
5393 | #endif /* ! defined (coff_relocate_section) */ |
||
5394 | |||
5395 | #define coff_bfd_link_just_syms _bfd_generic_link_just_syms |
||
5396 | #define coff_bfd_copy_link_hash_symbol_type \ |
||
5397 | _bfd_generic_copy_link_hash_symbol_type |
||
5398 | #define coff_bfd_link_split_section _bfd_generic_link_split_section |
||
5399 | |||
5400 | #ifndef coff_start_final_link |
||
5401 | #define coff_start_final_link NULL |
||
5402 | #endif |
||
5403 | |||
5404 | #ifndef coff_adjust_symndx |
||
5405 | #define coff_adjust_symndx NULL |
||
5406 | #endif |
||
5407 | |||
5408 | #ifndef coff_link_add_one_symbol |
||
5409 | #define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol |
||
5410 | #endif |
||
5411 | |||
5412 | #ifndef coff_link_output_has_begun |
||
5413 | |||
5414 | static bfd_boolean |
||
5415 | coff_link_output_has_begun (bfd * abfd, |
||
5416 | struct coff_final_link_info * info ATTRIBUTE_UNUSED) |
||
5417 | { |
||
5418 | return abfd->output_has_begun; |
||
5419 | } |
||
5420 | #endif |
||
5421 | |||
5422 | #ifndef coff_final_link_postscript |
||
5423 | |||
5424 | static bfd_boolean |
||
5425 | coff_final_link_postscript (bfd * abfd ATTRIBUTE_UNUSED, |
||
5426 | struct coff_final_link_info * pfinfo ATTRIBUTE_UNUSED) |
||
5427 | { |
||
5428 | return TRUE; |
||
5429 | } |
||
5430 | #endif |
||
5431 | |||
5432 | #ifndef coff_SWAP_aux_in |
||
5433 | #define coff_SWAP_aux_in coff_swap_aux_in |
||
5434 | #endif |
||
5435 | #ifndef coff_SWAP_sym_in |
||
5436 | #define coff_SWAP_sym_in coff_swap_sym_in |
||
5437 | #endif |
||
5438 | #ifndef coff_SWAP_lineno_in |
||
5439 | #define coff_SWAP_lineno_in coff_swap_lineno_in |
||
5440 | #endif |
||
5441 | #ifndef coff_SWAP_aux_out |
||
5442 | #define coff_SWAP_aux_out coff_swap_aux_out |
||
5443 | #endif |
||
5444 | #ifndef coff_SWAP_sym_out |
||
5445 | #define coff_SWAP_sym_out coff_swap_sym_out |
||
5446 | #endif |
||
5447 | #ifndef coff_SWAP_lineno_out |
||
5448 | #define coff_SWAP_lineno_out coff_swap_lineno_out |
||
5449 | #endif |
||
5450 | #ifndef coff_SWAP_reloc_out |
||
5451 | #define coff_SWAP_reloc_out coff_swap_reloc_out |
||
5452 | #endif |
||
5453 | #ifndef coff_SWAP_filehdr_out |
||
5454 | #define coff_SWAP_filehdr_out coff_swap_filehdr_out |
||
5455 | #endif |
||
5456 | #ifndef coff_SWAP_aouthdr_out |
||
5457 | #define coff_SWAP_aouthdr_out coff_swap_aouthdr_out |
||
5458 | #endif |
||
5459 | #ifndef coff_SWAP_scnhdr_out |
||
5460 | #define coff_SWAP_scnhdr_out coff_swap_scnhdr_out |
||
5461 | #endif |
||
5462 | #ifndef coff_SWAP_reloc_in |
||
5463 | #define coff_SWAP_reloc_in coff_swap_reloc_in |
||
5464 | #endif |
||
5465 | #ifndef coff_SWAP_filehdr_in |
||
5466 | #define coff_SWAP_filehdr_in coff_swap_filehdr_in |
||
5467 | #endif |
||
5468 | #ifndef coff_SWAP_aouthdr_in |
||
5469 | #define coff_SWAP_aouthdr_in coff_swap_aouthdr_in |
||
5470 | #endif |
||
5471 | #ifndef coff_SWAP_scnhdr_in |
||
5472 | #define coff_SWAP_scnhdr_in coff_swap_scnhdr_in |
||
5473 | #endif |
||
5474 | |||
5475 | static bfd_coff_backend_data bfd_coff_std_swap_table ATTRIBUTE_UNUSED = |
||
5476 | { |
||
5477 | coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in, |
||
5478 | coff_SWAP_aux_out, coff_SWAP_sym_out, |
||
5479 | coff_SWAP_lineno_out, coff_SWAP_reloc_out, |
||
5480 | coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out, |
||
5481 | coff_SWAP_scnhdr_out, |
||
5482 | FILHSZ, AOUTSZ, SCNHSZ, SYMESZ, AUXESZ, RELSZ, LINESZ, FILNMLEN, |
||
5483 | #ifdef COFF_LONG_FILENAMES |
||
5484 | TRUE, |
||
5485 | #else |
||
5486 | FALSE, |
||
5487 | #endif |
||
5488 | COFF_DEFAULT_LONG_SECTION_NAMES, |
||
5489 | COFF_DEFAULT_SECTION_ALIGNMENT_POWER, |
||
5490 | #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS |
||
5491 | TRUE, |
||
5492 | #else |
||
5493 | FALSE, |
||
5494 | #endif |
||
5495 | #ifdef COFF_DEBUG_STRING_WIDE_PREFIX |
||
5496 | 4, |
||
5497 | #else |
||
5498 | 2, |
||
5499 | #endif |
||
5500 | coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in, |
||
5501 | coff_SWAP_reloc_in, coff_bad_format_hook, coff_set_arch_mach_hook, |
||
5502 | coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook, |
||
5503 | coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook, |
||
5504 | coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate, |
||
5505 | coff_classify_symbol, coff_compute_section_file_positions, |
||
5506 | coff_start_final_link, coff_relocate_section, coff_rtype_to_howto, |
||
5507 | coff_adjust_symndx, coff_link_add_one_symbol, |
||
5508 | coff_link_output_has_begun, coff_final_link_postscript, |
||
5509 | bfd_pe_print_pdata |
||
5510 | }; |
||
5511 | |||
5512 | #ifdef TICOFF |
||
5513 | /* COFF0 differs in file/section header size and relocation entry size. */ |
||
5514 | |||
5515 | static bfd_coff_backend_data ticoff0_swap_table = |
||
5516 | { |
||
5517 | coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in, |
||
5518 | coff_SWAP_aux_out, coff_SWAP_sym_out, |
||
5519 | coff_SWAP_lineno_out, coff_SWAP_reloc_out, |
||
5520 | coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out, |
||
5521 | coff_SWAP_scnhdr_out, |
||
5522 | FILHSZ_V0, AOUTSZ, SCNHSZ_V01, SYMESZ, AUXESZ, RELSZ_V0, LINESZ, FILNMLEN, |
||
5523 | #ifdef COFF_LONG_FILENAMES |
||
5524 | TRUE, |
||
5525 | #else |
||
5526 | FALSE, |
||
5527 | #endif |
||
5528 | COFF_DEFAULT_LONG_SECTION_NAMES, |
||
5529 | COFF_DEFAULT_SECTION_ALIGNMENT_POWER, |
||
5530 | #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS |
||
5531 | TRUE, |
||
5532 | #else |
||
5533 | FALSE, |
||
5534 | #endif |
||
5535 | #ifdef COFF_DEBUG_STRING_WIDE_PREFIX |
||
5536 | 4, |
||
5537 | #else |
||
5538 | 2, |
||
5539 | #endif |
||
5540 | coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in, |
||
5541 | coff_SWAP_reloc_in, ticoff0_bad_format_hook, coff_set_arch_mach_hook, |
||
5542 | coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook, |
||
5543 | coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook, |
||
5544 | coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate, |
||
5545 | coff_classify_symbol, coff_compute_section_file_positions, |
||
5546 | coff_start_final_link, coff_relocate_section, coff_rtype_to_howto, |
||
5547 | coff_adjust_symndx, coff_link_add_one_symbol, |
||
5548 | coff_link_output_has_begun, coff_final_link_postscript, |
||
5549 | bfd_pe_print_pdata |
||
5550 | }; |
||
5551 | #endif |
||
5552 | |||
5553 | #ifdef TICOFF |
||
5554 | /* COFF1 differs in section header size. */ |
||
5555 | |||
5556 | static bfd_coff_backend_data ticoff1_swap_table = |
||
5557 | { |
||
5558 | coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in, |
||
5559 | coff_SWAP_aux_out, coff_SWAP_sym_out, |
||
5560 | coff_SWAP_lineno_out, coff_SWAP_reloc_out, |
||
5561 | coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out, |
||
5562 | coff_SWAP_scnhdr_out, |
||
5563 | FILHSZ, AOUTSZ, SCNHSZ_V01, SYMESZ, AUXESZ, RELSZ, LINESZ, FILNMLEN, |
||
5564 | #ifdef COFF_LONG_FILENAMES |
||
5565 | TRUE, |
||
5566 | #else |
||
5567 | FALSE, |
||
5568 | #endif |
||
5569 | COFF_DEFAULT_LONG_SECTION_NAMES, |
||
5570 | COFF_DEFAULT_SECTION_ALIGNMENT_POWER, |
||
5571 | #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS |
||
5572 | TRUE, |
||
5573 | #else |
||
5574 | FALSE, |
||
5575 | #endif |
||
5576 | #ifdef COFF_DEBUG_STRING_WIDE_PREFIX |
||
5577 | 4, |
||
5578 | #else |
||
5579 | 2, |
||
5580 | #endif |
||
5581 | coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in, |
||
5582 | coff_SWAP_reloc_in, ticoff1_bad_format_hook, coff_set_arch_mach_hook, |
||
5583 | coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook, |
||
5584 | coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook, |
||
5585 | coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate, |
||
5586 | coff_classify_symbol, coff_compute_section_file_positions, |
||
5587 | coff_start_final_link, coff_relocate_section, coff_rtype_to_howto, |
||
5588 | coff_adjust_symndx, coff_link_add_one_symbol, |
||
5589 | coff_link_output_has_begun, coff_final_link_postscript, |
||
5590 | bfd_pe_print_pdata /* huh */ |
||
5591 | }; |
||
5592 | #endif |
||
5593 | |||
5594 | #ifndef coff_close_and_cleanup |
||
5595 | #define coff_close_and_cleanup _bfd_generic_close_and_cleanup |
||
5596 | #endif |
||
5597 | |||
5598 | #ifndef coff_bfd_free_cached_info |
||
5599 | #define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info |
||
5600 | #endif |
||
5601 | |||
5602 | #ifndef coff_get_section_contents |
||
5603 | #define coff_get_section_contents _bfd_generic_get_section_contents |
||
5604 | #endif |
||
5605 | |||
5606 | #ifndef coff_bfd_copy_private_symbol_data |
||
5607 | #define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data |
||
5608 | #endif |
||
5609 | |||
5610 | #ifndef coff_bfd_copy_private_header_data |
||
5611 | #define coff_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data |
||
5612 | #endif |
||
5613 | |||
5614 | #ifndef coff_bfd_copy_private_section_data |
||
5615 | #define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data |
||
5616 | #endif |
||
5617 | |||
5618 | #ifndef coff_bfd_copy_private_bfd_data |
||
5619 | #define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data |
||
5620 | #endif |
||
5621 | |||
5622 | #ifndef coff_bfd_merge_private_bfd_data |
||
5623 | #define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data |
||
5624 | #endif |
||
5625 | |||
5626 | #ifndef coff_bfd_set_private_flags |
||
5627 | #define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags |
||
5628 | #endif |
||
5629 | |||
5630 | #ifndef coff_bfd_print_private_bfd_data |
||
5631 | #define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data |
||
5632 | #endif |
||
5633 | |||
5634 | #ifndef coff_bfd_is_local_label_name |
||
5635 | #define coff_bfd_is_local_label_name _bfd_coff_is_local_label_name |
||
5636 | #endif |
||
5637 | |||
5638 | #ifndef coff_bfd_is_target_special_symbol |
||
5639 | #define coff_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false) |
||
5640 | #endif |
||
5641 | |||
5642 | #ifndef coff_read_minisymbols |
||
5643 | #define coff_read_minisymbols _bfd_generic_read_minisymbols |
||
5644 | #endif |
||
5645 | |||
5646 | #ifndef coff_minisymbol_to_symbol |
||
5647 | #define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol |
||
5648 | #endif |
||
5649 | |||
5650 | /* The reloc lookup routine must be supplied by each individual COFF |
||
5651 | backend. */ |
||
5652 | #ifndef coff_bfd_reloc_type_lookup |
||
5653 | #define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup |
||
5654 | #endif |
||
5655 | #ifndef coff_bfd_reloc_name_lookup |
||
5656 | #define coff_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup |
||
5657 | #endif |
||
5658 | |||
5659 | #ifndef coff_bfd_get_relocated_section_contents |
||
5660 | #define coff_bfd_get_relocated_section_contents \ |
||
5661 | bfd_generic_get_relocated_section_contents |
||
5662 | #endif |
||
5663 | |||
5664 | #ifndef coff_bfd_relax_section |
||
5665 | #define coff_bfd_relax_section bfd_generic_relax_section |
||
5666 | #endif |
||
5667 | |||
5668 | #ifndef coff_bfd_gc_sections |
||
5669 | #define coff_bfd_gc_sections bfd_generic_gc_sections |
||
5670 | #endif |
||
5671 | |||
5672 | #ifndef coff_bfd_lookup_section_flags |
||
5673 | #define coff_bfd_lookup_section_flags bfd_generic_lookup_section_flags |
||
5674 | #endif |
||
5675 | |||
5676 | #ifndef coff_bfd_merge_sections |
||
5677 | #define coff_bfd_merge_sections bfd_generic_merge_sections |
||
5678 | #endif |
||
5679 | |||
5680 | #ifndef coff_bfd_is_group_section |
||
5681 | #define coff_bfd_is_group_section bfd_generic_is_group_section |
||
5682 | #endif |
||
5683 | |||
5684 | #ifndef coff_bfd_discard_group |
||
5685 | #define coff_bfd_discard_group bfd_generic_discard_group |
||
5686 | #endif |
||
5687 | |||
5688 | #ifndef coff_section_already_linked |
||
5689 | #define coff_section_already_linked \ |
||
5690 | _bfd_coff_section_already_linked |
||
5691 | #endif |
||
5692 | |||
5693 | #ifndef coff_bfd_define_common_symbol |
||
5694 | #define coff_bfd_define_common_symbol bfd_generic_define_common_symbol |
||
5695 | #endif |
||
5696 | |||
5697 | #define CREATE_BIG_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \ |
||
5698 | const bfd_target VAR = \ |
||
5699 | { \ |
||
5700 | NAME , \ |
||
5701 | bfd_target_coff_flavour, \ |
||
5702 | BFD_ENDIAN_BIG, /* Data byte order is big. */ \ |
||
5703 | BFD_ENDIAN_BIG, /* Header byte order is big. */ \ |
||
5704 | /* object flags */ \ |
||
5705 | (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \ |
||
5706 | HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \ |
||
5707 | /* section flags */ \ |
||
5708 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\ |
||
5709 | UNDER, /* Leading symbol underscore. */ \ |
||
5710 | '/', /* AR_pad_char. */ \ |
||
5711 | 15, /* AR_max_namelen. */ \ |
||
5712 | 0, /* match priority. */ \ |
||
5713 | \ |
||
5714 | /* Data conversion functions. */ \ |
||
5715 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, \ |
||
5716 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, \ |
||
5717 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, \ |
||
5718 | \ |
||
5719 | /* Header conversion functions. */ \ |
||
5720 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, \ |
||
5721 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, \ |
||
5722 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, \ |
||
5723 | \ |
||
5724 | /* bfd_check_format. */ \ |
||
5725 | { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \ |
||
5726 | _bfd_dummy_target }, \ |
||
5727 | /* bfd_set_format. */ \ |
||
5728 | { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \ |
||
5729 | /* bfd_write_contents. */ \ |
||
5730 | { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \ |
||
5731 | bfd_false }, \ |
||
5732 | \ |
||
5733 | BFD_JUMP_TABLE_GENERIC (coff), \ |
||
5734 | BFD_JUMP_TABLE_COPY (coff), \ |
||
5735 | BFD_JUMP_TABLE_CORE (_bfd_nocore), \ |
||
5736 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \ |
||
5737 | BFD_JUMP_TABLE_SYMBOLS (coff), \ |
||
5738 | BFD_JUMP_TABLE_RELOCS (coff), \ |
||
5739 | BFD_JUMP_TABLE_WRITE (coff), \ |
||
5740 | BFD_JUMP_TABLE_LINK (coff), \ |
||
5741 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \ |
||
5742 | \ |
||
5743 | ALTERNATIVE, \ |
||
5744 | \ |
||
5745 | SWAP_TABLE \ |
||
5746 | }; |
||
5747 | |||
5748 | #define CREATE_BIGHDR_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \ |
||
5749 | const bfd_target VAR = \ |
||
5750 | { \ |
||
5751 | NAME , \ |
||
5752 | bfd_target_coff_flavour, \ |
||
5753 | BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \ |
||
5754 | BFD_ENDIAN_BIG, /* Header byte order is big. */ \ |
||
5755 | /* object flags */ \ |
||
5756 | (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \ |
||
5757 | HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \ |
||
5758 | /* section flags */ \ |
||
5759 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\ |
||
5760 | UNDER, /* Leading symbol underscore. */ \ |
||
5761 | '/', /* AR_pad_char. */ \ |
||
5762 | 15, /* AR_max_namelen. */ \ |
||
5763 | 0, /* match priority. */ \ |
||
5764 | \ |
||
5765 | /* Data conversion functions. */ \ |
||
5766 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, \ |
||
5767 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, \ |
||
5768 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, \ |
||
5769 | \ |
||
5770 | /* Header conversion functions. */ \ |
||
5771 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, \ |
||
5772 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, \ |
||
5773 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, \ |
||
5774 | \ |
||
5775 | /* bfd_check_format. */ \ |
||
5776 | { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \ |
||
5777 | _bfd_dummy_target }, \ |
||
5778 | /* bfd_set_format. */ \ |
||
5779 | { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \ |
||
5780 | /* bfd_write_contents. */ \ |
||
5781 | { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \ |
||
5782 | bfd_false }, \ |
||
5783 | \ |
||
5784 | BFD_JUMP_TABLE_GENERIC (coff), \ |
||
5785 | BFD_JUMP_TABLE_COPY (coff), \ |
||
5786 | BFD_JUMP_TABLE_CORE (_bfd_nocore), \ |
||
5787 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \ |
||
5788 | BFD_JUMP_TABLE_SYMBOLS (coff), \ |
||
5789 | BFD_JUMP_TABLE_RELOCS (coff), \ |
||
5790 | BFD_JUMP_TABLE_WRITE (coff), \ |
||
5791 | BFD_JUMP_TABLE_LINK (coff), \ |
||
5792 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \ |
||
5793 | \ |
||
5794 | ALTERNATIVE, \ |
||
5795 | \ |
||
5796 | SWAP_TABLE \ |
||
5797 | }; |
||
5798 | |||
5799 | #define CREATE_LITTLE_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \ |
||
5800 | const bfd_target VAR = \ |
||
5801 | { \ |
||
5802 | NAME , \ |
||
5803 | bfd_target_coff_flavour, \ |
||
5804 | BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \ |
||
5805 | BFD_ENDIAN_LITTLE, /* Header byte order is little. */ \ |
||
5806 | /* object flags */ \ |
||
5807 | (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \ |
||
5808 | HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \ |
||
5809 | /* section flags */ \ |
||
5810 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\ |
||
5811 | UNDER, /* Leading symbol underscore. */ \ |
||
5812 | '/', /* AR_pad_char. */ \ |
||
5813 | 15, /* AR_max_namelen. */ \ |
||
5814 | 0, /* match priority. */ \ |
||
5815 | \ |
||
5816 | /* Data conversion functions. */ \ |
||
5817 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, \ |
||
5818 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, \ |
||
5819 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, \ |
||
5820 | /* Header conversion functions. */ \ |
||
5821 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, \ |
||
5822 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, \ |
||
5823 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, \ |
||
5824 | /* bfd_check_format. */ \ |
||
5825 | { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \ |
||
5826 | _bfd_dummy_target }, \ |
||
5827 | /* bfd_set_format. */ \ |
||
5828 | { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \ |
||
5829 | /* bfd_write_contents. */ \ |
||
5830 | { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \ |
||
5831 | bfd_false }, \ |
||
5832 | \ |
||
5833 | BFD_JUMP_TABLE_GENERIC (coff), \ |
||
5834 | BFD_JUMP_TABLE_COPY (coff), \ |
||
5835 | BFD_JUMP_TABLE_CORE (_bfd_nocore), \ |
||
5836 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \ |
||
5837 | BFD_JUMP_TABLE_SYMBOLS (coff), \ |
||
5838 | BFD_JUMP_TABLE_RELOCS (coff), \ |
||
5839 | BFD_JUMP_TABLE_WRITE (coff), \ |
||
5840 | BFD_JUMP_TABLE_LINK (coff), \ |
||
5841 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \ |
||
5842 | \ |
||
5843 | ALTERNATIVE, \ |
||
5844 | \ |
||
5845 | SWAP_TABLE \ |
||
5846 | };>>>>=>>>>>>>>>>>>>><>><>><>>><>>><>><>>><>>>>>><>>>>><>><>><>><>><>>>>>>> |