1 /* Support for the generic parts of most COFF variants, for BFD.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
4 Free Software Foundation, Inc.
5 Written by Cygnus Support.
7 This file is part of BFD, the Binary File Descriptor library.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
22 MA 02110-1301, USA. */
24 /* Most of this hacked by Steve Chamberlain,
30 BFD supports a number of different flavours of coff format.
31 The major differences between formats are the sizes and
32 alignments of fields in structures on disk, and the occasional
35 Coff in all its varieties is implemented with a few common
36 files and a number of implementation specific files. For
37 example, The 88k bcs coff format is implemented in the file
38 @file{coff-m88k.c}. This file @code{#include}s
39 @file{coff/m88k.h} which defines the external structure of the
40 coff format for the 88k, and @file{coff/internal.h} which
41 defines the internal structure. @file{coff-m88k.c} also
42 defines the relocations used by the 88k format
45 The Intel i960 processor version of coff is implemented in
46 @file{coff-i960.c}. This file has the same structure as
47 @file{coff-m88k.c}, except that it includes @file{coff/i960.h}
48 rather than @file{coff-m88k.h}.
51 Porting to a new version of coff
53 The recommended method is to select from the existing
54 implementations the version of coff which is most like the one
55 you want to use. For example, we'll say that i386 coff is
56 the one you select, and that your coff flavour is called foo.
57 Copy @file{i386coff.c} to @file{foocoff.c}, copy
58 @file{../include/coff/i386.h} to @file{../include/coff/foo.h},
59 and add the lines to @file{targets.c} and @file{Makefile.in}
60 so that your new back end is used. Alter the shapes of the
61 structures in @file{../include/coff/foo.h} so that they match
62 what you need. You will probably also have to add
63 @code{#ifdef}s to the code in @file{coff/internal.h} and
64 @file{coffcode.h} if your version of coff is too wild.
66 You can verify that your new BFD backend works quite simply by
67 building @file{objdump} from the @file{binutils} directory,
68 and making sure that its version of what's going on and your
69 host system's idea (assuming it has the pretty standard coff
70 dump utility, usually called @code{att-dump} or just
71 @code{dump}) are the same. Then clean up your code, and send
72 what you've done to Cygnus. Then your stuff will be in the
73 next release, and you won't have to keep integrating it.
76 How the coff backend works
81 The Coff backend is split into generic routines that are
82 applicable to any Coff target and routines that are specific
83 to a particular target. The target-specific routines are
84 further split into ones which are basically the same for all
85 Coff targets except that they use the external symbol format
86 or use different values for certain constants.
88 The generic routines are in @file{coffgen.c}. These routines
89 work for any Coff target. They use some hooks into the target
90 specific code; the hooks are in a @code{bfd_coff_backend_data}
91 structure, one of which exists for each target.
93 The essentially similar target-specific routines are in
94 @file{coffcode.h}. This header file includes executable C code.
95 The various Coff targets first include the appropriate Coff
96 header file, make any special defines that are needed, and
97 then include @file{coffcode.h}.
99 Some of the Coff targets then also have additional routines in
100 the target source file itself.
102 For example, @file{coff-i960.c} includes
103 @file{coff/internal.h} and @file{coff/i960.h}. It then
104 defines a few constants, such as @code{I960}, and includes
105 @file{coffcode.h}. Since the i960 has complex relocation
106 types, @file{coff-i960.c} also includes some code to
107 manipulate the i960 relocs. This code is not in
108 @file{coffcode.h} because it would not be used by any other
112 Coff long section names
114 In the standard Coff object format, section names are limited to
115 the eight bytes available in the @code{s_name} field of the
116 @code{SCNHDR} section header structure. The format requires the
117 field to be NUL-padded, but not necessarily NUL-terminated, so
118 the longest section names permitted are a full eight characters.
120 The Microsoft PE variants of the Coff object file format add
121 an extension to support the use of long section names. This
122 extension is defined in section 4 of the Microsoft PE/COFF
123 specification (rev 8.1). If a section name is too long to fit
124 into the section header's @code{s_name} field, it is instead
125 placed into the string table, and the @code{s_name} field is
126 filled with a slash ("/") followed by the ASCII decimal
127 representation of the offset of the full name relative to the
130 Note that this implies that the extension can only be used in object
131 files, as executables do not contain a string table. The standard
132 specifies that long section names from objects emitted into executable
133 images are to be truncated.
135 However, as a GNU extension, BFD can generate executable images
136 that contain a string table and long section names. This
137 would appear to be technically valid, as the standard only says
138 that Coff debugging information is deprecated, not forbidden,
139 and in practice it works, although some tools that parse PE files
140 expecting the MS standard format may become confused; @file{PEview} is
143 The functionality is supported in BFD by code implemented under
144 the control of the macro @code{COFF_LONG_SECTION_NAMES}. If not
145 defined, the format does not support long section names in any way.
146 If defined, it is used to initialise a flag,
147 @code{_bfd_coff_long_section_names}, and a hook function pointer,
148 @code{_bfd_coff_set_long_section_names}, in the Coff backend data
149 structure. The flag controls the generation of long section names
150 in output BFDs at runtime; if it is false, as it will be by default
151 when generating an executable image, long section names are truncated;
152 if true, the long section names extension is employed. The hook
153 points to a function that allows the value of the flag to be altered
154 at runtime, on formats that support long section names at all; on
155 other formats it points to a stub that returns an error indication.
157 If @code{COFF_LONG_SECTION_NAMES} is simply defined (blank), or is
158 defined to the value "1", then long section names are enabled by
159 default; if it is defined to the value zero, they are disabled by
160 default (but still accepted in input BFDs). The header @file{coffcode.h}
161 defines a macro, @code{COFF_DEFAULT_LONG_SECTION_NAMES}, which is
162 used in the backends to initialise the backend data structure fields
163 appropriately; see the comments for further detail.
168 Each flavour of coff supported in BFD has its own header file
169 describing the external layout of the structures. There is also
170 an internal description of the coff layout, in
171 @file{coff/internal.h}. A major function of the
172 coff backend is swapping the bytes and twiddling the bits to
173 translate the external form of the structures into the normal
174 internal form. This is all performed in the
175 @code{bfd_swap}_@i{thing}_@i{direction} routines. Some
176 elements are different sizes between different versions of
177 coff; it is the duty of the coff version specific include file
178 to override the definitions of various packing routines in
179 @file{coffcode.h}. E.g., the size of line number entry in coff is
180 sometimes 16 bits, and sometimes 32 bits. @code{#define}ing
181 @code{PUT_LNSZ_LNNO} and @code{GET_LNSZ_LNNO} will select the
182 correct one. No doubt, some day someone will find a version of
183 coff which has a varying field size not catered to at the
184 moment. To port BFD, that person will have to add more @code{#defines}.
185 Three of the bit twiddling routines are exported to
186 @code{gdb}; @code{coff_swap_aux_in}, @code{coff_swap_sym_in}
187 and @code{coff_swap_lineno_in}. @code{GDB} reads the symbol
188 table on its own, but uses BFD to fix things up. More of the
189 bit twiddlers are exported for @code{gas};
190 @code{coff_swap_aux_out}, @code{coff_swap_sym_out},
191 @code{coff_swap_lineno_out}, @code{coff_swap_reloc_out},
192 @code{coff_swap_filehdr_out}, @code{coff_swap_aouthdr_out},
193 @code{coff_swap_scnhdr_out}. @code{Gas} currently keeps track
194 of all the symbol table and reloc drudgery itself, thereby
195 saving the internal BFD overhead, but uses BFD to swap things
196 on the way out, making cross ports much safer. Doing so also
197 allows BFD (and thus the linker) to use the same header files
198 as @code{gas}, which makes one avenue to disaster disappear.
203 The simple canonical form for symbols used by BFD is not rich
204 enough to keep all the information available in a coff symbol
205 table. The back end gets around this problem by keeping the original
206 symbol table around, "behind the scenes".
208 When a symbol table is requested (through a call to
209 @code{bfd_canonicalize_symtab}), a request gets through to
210 @code{coff_get_normalized_symtab}. This reads the symbol table from
211 the coff file and swaps all the structures inside into the
212 internal form. It also fixes up all the pointers in the table
213 (represented in the file by offsets from the first symbol in
214 the table) into physical pointers to elements in the new
215 internal table. This involves some work since the meanings of
216 fields change depending upon context: a field that is a
217 pointer to another structure in the symbol table at one moment
218 may be the size in bytes of a structure at the next. Another
219 pass is made over the table. All symbols which mark file names
220 (<<C_FILE>> symbols) are modified so that the internal
221 string points to the value in the auxent (the real filename)
222 rather than the normal text associated with the symbol
225 At this time the symbol names are moved around. Coff stores
226 all symbols less than nine characters long physically
227 within the symbol table; longer strings are kept at the end of
228 the file in the string table. This pass moves all strings
229 into memory and replaces them with pointers to the strings.
231 The symbol table is massaged once again, this time to create
232 the canonical table used by the BFD application. Each symbol
233 is inspected in turn, and a decision made (using the
234 @code{sclass} field) about the various flags to set in the
235 @code{asymbol}. @xref{Symbols}. The generated canonical table
236 shares strings with the hidden internal symbol table.
238 Any linenumbers are read from the coff file too, and attached
239 to the symbols which own the functions the linenumbers belong to.
244 Writing a symbol to a coff file which didn't come from a coff
245 file will lose any debugging information. The @code{asymbol}
246 structure remembers the BFD from which the symbol was taken, and on
247 output the back end makes sure that the same destination target as
248 source target is present.
250 When the symbols have come from a coff file then all the
251 debugging information is preserved.
253 Symbol tables are provided for writing to the back end in a
254 vector of pointers to pointers. This allows applications like
255 the linker to accumulate and output large symbol tables
256 without having to do too much byte copying.
258 This function runs through the provided symbol table and
259 patches each symbol marked as a file place holder
260 (@code{C_FILE}) to point to the next file place holder in the
261 list. It also marks each @code{offset} field in the list with
262 the offset from the first symbol of the current symbol.
264 Another function of this procedure is to turn the canonical
265 value form of BFD into the form used by coff. Internally, BFD
266 expects symbol values to be offsets from a section base; so a
267 symbol physically at 0x120, but in a section starting at
268 0x100, would have the value 0x20. Coff expects symbols to
269 contain their final value, so symbols have their values
270 changed at this point to reflect their sum with their owning
271 section. This transformation uses the
272 <<output_section>> field of the @code{asymbol}'s
273 @code{asection} @xref{Sections}.
275 o <<coff_mangle_symbols>>
277 This routine runs though the provided symbol table and uses
278 the offsets generated by the previous pass and the pointers
279 generated when the symbol table was read in to create the
280 structured hierarchy required by coff. It changes each pointer
281 to a symbol into the index into the symbol table of the asymbol.
283 o <<coff_write_symbols>>
285 This routine runs through the symbol table and patches up the
286 symbols from their internal form into the coff way, calls the
287 bit twiddlers, and writes out the table to the file.
296 The hidden information for an <<asymbol>> is described in a
297 <<combined_entry_type>>:
301 .typedef struct coff_ptr_struct
303 . {* Remembers the offset from the first symbol in the file for
304 . this symbol. Generated by coff_renumber_symbols. *}
305 . unsigned int offset;
307 . {* Should the value of this symbol be renumbered. Used for
308 . XCOFF C_BSTAT symbols. Set by coff_slurp_symbol_table. *}
309 . unsigned int fix_value : 1;
311 . {* Should the tag field of this symbol be renumbered.
312 . Created by coff_pointerize_aux. *}
313 . unsigned int fix_tag : 1;
315 . {* Should the endidx field of this symbol be renumbered.
316 . Created by coff_pointerize_aux. *}
317 . unsigned int fix_end : 1;
319 . {* Should the x_csect.x_scnlen field be renumbered.
320 . Created by coff_pointerize_aux. *}
321 . unsigned int fix_scnlen : 1;
323 . {* Fix up an XCOFF C_BINCL/C_EINCL symbol. The value is the
324 . index into the line number entries. Set by coff_slurp_symbol_table. *}
325 . unsigned int fix_line : 1;
327 . {* The container for the symbol structure as read and translated
331 . union internal_auxent auxent;
332 . struct internal_syment syment;
334 .} combined_entry_type;
337 .{* Each canonical asymbol really looks like this: *}
339 .typedef struct coff_symbol_struct
341 . {* The actual symbol which the rest of BFD works with *}
344 . {* A pointer to the hidden information for this symbol *}
345 . combined_entry_type *native;
347 . {* A pointer to the linenumber information for this symbol *}
348 . struct lineno_cache_entry *lineno;
350 . {* Have the line numbers been relocated yet ? *}
351 . bfd_boolean done_lineno;
359 #include "coffswap.h"
362 #define STRING_SIZE_SIZE 4
364 #define DOT_DEBUG ".debug"
365 #define GNU_LINKONCE_WI ".gnu.linkonce.wi."
367 #if defined (COFF_LONG_SECTION_NAMES)
368 /* Needed to expand the inputs to BLANKOR1TOODD. */
369 #define COFFLONGSECTIONCATHELPER(x,y) x ## y
370 /* If the input macro Y is blank or '1', return an odd number; if it is
371 '0', return an even number. Result undefined in all other cases. */
372 #define BLANKOR1TOODD(y) COFFLONGSECTIONCATHELPER(1,y)
373 /* Defined to numerical 0 or 1 according to whether generation of long
374 section names is disabled or enabled by default. */
375 #define COFF_ENABLE_LONG_SECTION_NAMES (BLANKOR1TOODD(COFF_LONG_SECTION_NAMES) & 1)
376 /* Where long section names are supported, we allow them to be enabled
377 and disabled at runtime, so select an appropriate hook function for
378 _bfd_coff_set_long_section_names. */
379 #define COFF_LONG_SECTION_NAMES_SETTER bfd_coff_set_long_section_names_allowed
380 #else /* !defined (COFF_LONG_SECTION_NAMES) */
381 /* If long section names are not supported, this stub disallows any
382 attempt to enable them at run-time. */
383 #define COFF_LONG_SECTION_NAMES_SETTER bfd_coff_set_long_section_names_disallowed
384 #endif /* defined (COFF_LONG_SECTION_NAMES) */
386 /* Define a macro that can be used to initialise both the fields relating
387 to long section names in the backend data struct simultaneously. */
388 #if COFF_ENABLE_LONG_SECTION_NAMES
389 #define COFF_DEFAULT_LONG_SECTION_NAMES (TRUE), COFF_LONG_SECTION_NAMES_SETTER
390 #else /* !COFF_ENABLE_LONG_SECTION_NAMES */
391 #define COFF_DEFAULT_LONG_SECTION_NAMES (FALSE), COFF_LONG_SECTION_NAMES_SETTER
392 #endif /* COFF_ENABLE_LONG_SECTION_NAMES */
394 #if defined (COFF_LONG_SECTION_NAMES)
395 static bfd_boolean bfd_coff_set_long_section_names_allowed
397 #else /* !defined (COFF_LONG_SECTION_NAMES) */
398 static bfd_boolean bfd_coff_set_long_section_names_disallowed
400 #endif /* defined (COFF_LONG_SECTION_NAMES) */
401 static long sec_to_styp_flags
402 (const char *, flagword
);
403 static bfd_boolean styp_to_sec_flags
404 (bfd
*, void *, const char *, asection
*, flagword
*);
405 static bfd_boolean coff_bad_format_hook
407 static void coff_set_custom_section_alignment
408 (bfd
*, asection
*, const struct coff_section_alignment_entry
*,
410 static bfd_boolean coff_new_section_hook
412 static bfd_boolean coff_set_arch_mach_hook
414 static bfd_boolean coff_write_relocs
416 static bfd_boolean coff_set_flags
417 (bfd
*, unsigned int *, unsigned short *);
418 static bfd_boolean coff_set_arch_mach
419 (bfd
*, enum bfd_architecture
, unsigned long) ATTRIBUTE_UNUSED
;
420 static bfd_boolean coff_compute_section_file_positions
422 static bfd_boolean coff_write_object_contents
423 (bfd
*) ATTRIBUTE_UNUSED
;
424 static bfd_boolean coff_set_section_contents
425 (bfd
*, asection
*, const void *, file_ptr
, bfd_size_type
);
426 static void * buy_and_read
427 (bfd
*, file_ptr
, bfd_size_type
);
428 static bfd_boolean coff_slurp_line_table
430 static bfd_boolean coff_slurp_symbol_table
432 static enum coff_symbol_classification coff_classify_symbol
433 (bfd
*, struct internal_syment
*);
434 static bfd_boolean coff_slurp_reloc_table
435 (bfd
*, asection
*, asymbol
**);
436 static long coff_canonicalize_reloc
437 (bfd
*, asection
*, arelent
**, asymbol
**);
438 #ifndef coff_mkobject_hook
439 static void * coff_mkobject_hook
440 (bfd
*, void *, void *);
443 static flagword handle_COMDAT
444 (bfd
*, flagword
, void *, const char *, asection
*);
446 #ifdef COFF_IMAGE_WITH_PE
447 static bfd_boolean coff_read_word
448 (bfd
*, unsigned int *);
449 static unsigned int coff_compute_checksum
451 static bfd_boolean coff_apply_checksum
455 static bfd_boolean ticoff0_bad_format_hook
457 static bfd_boolean ticoff1_bad_format_hook
461 /* void warning(); */
463 #if defined (COFF_LONG_SECTION_NAMES)
465 bfd_coff_set_long_section_names_allowed (bfd
*abfd
, int enable
)
467 coff_backend_info (abfd
)->_bfd_coff_long_section_names
= enable
;
470 #else /* !defined (COFF_LONG_SECTION_NAMES) */
472 bfd_coff_set_long_section_names_disallowed (bfd
*abfd
, int enable
)
478 #endif /* defined (COFF_LONG_SECTION_NAMES) */
480 /* Return a word with STYP_* (scnhdr.s_flags) flags set to represent
481 the incoming SEC_* flags. The inverse of this function is
482 styp_to_sec_flags(). NOTE: If you add to/change this routine, you
483 should probably mirror the changes in styp_to_sec_flags(). */
487 /* Macros for setting debugging flags. */
490 #define STYP_XCOFF_DEBUG STYP_DEBUG
492 #define STYP_XCOFF_DEBUG STYP_INFO
495 #ifdef COFF_ALIGN_IN_S_FLAGS
496 #define STYP_DEBUG_INFO STYP_DSECT
498 #define STYP_DEBUG_INFO STYP_INFO
502 sec_to_styp_flags (const char *sec_name
, flagword sec_flags
)
506 if (!strcmp (sec_name
, _TEXT
))
508 styp_flags
= STYP_TEXT
;
510 else if (!strcmp (sec_name
, _DATA
))
512 styp_flags
= STYP_DATA
;
514 else if (!strcmp (sec_name
, _BSS
))
516 styp_flags
= STYP_BSS
;
519 else if (!strcmp (sec_name
, _COMMENT
))
521 styp_flags
= STYP_INFO
;
522 #endif /* _COMMENT */
525 else if (!strcmp (sec_name
, _LIB
))
527 styp_flags
= STYP_LIB
;
531 else if (!strcmp (sec_name
, _LIT
))
533 styp_flags
= STYP_LIT
;
536 else if (CONST_STRNEQ (sec_name
, DOT_DEBUG
))
538 /* Handle the XCOFF debug section and DWARF2 debug sections. */
540 styp_flags
= STYP_XCOFF_DEBUG
;
542 styp_flags
= STYP_DEBUG_INFO
;
544 else if (CONST_STRNEQ (sec_name
, ".stab"))
546 styp_flags
= STYP_DEBUG_INFO
;
548 #ifdef COFF_LONG_SECTION_NAMES
549 else if (CONST_STRNEQ (sec_name
, GNU_LINKONCE_WI
))
551 styp_flags
= STYP_DEBUG_INFO
;
555 else if (!strcmp (sec_name
, _PAD
))
557 styp_flags
= STYP_PAD
;
559 else if (!strcmp (sec_name
, _LOADER
))
561 styp_flags
= STYP_LOADER
;
563 else if (!strcmp (sec_name
, _EXCEPT
))
565 styp_flags
= STYP_EXCEPT
;
567 else if (!strcmp (sec_name
, _TYPCHK
))
569 styp_flags
= STYP_TYPCHK
;
572 /* Try and figure out what it should be */
573 else if (sec_flags
& SEC_CODE
)
575 styp_flags
= STYP_TEXT
;
577 else if (sec_flags
& SEC_DATA
)
579 styp_flags
= STYP_DATA
;
581 else if (sec_flags
& SEC_READONLY
)
583 #ifdef STYP_LIT /* 29k readonly text/data section */
584 styp_flags
= STYP_LIT
;
586 styp_flags
= STYP_TEXT
;
587 #endif /* STYP_LIT */
589 else if (sec_flags
& SEC_LOAD
)
591 styp_flags
= STYP_TEXT
;
593 else if (sec_flags
& SEC_ALLOC
)
595 styp_flags
= STYP_BSS
;
599 if (sec_flags
& SEC_TIC54X_CLINK
)
600 styp_flags
|= STYP_CLINK
;
604 if (sec_flags
& SEC_TIC54X_BLOCK
)
605 styp_flags
|= STYP_BLOCK
;
609 if ((sec_flags
& (SEC_NEVER_LOAD
| SEC_COFF_SHARED_LIBRARY
)) != 0)
610 styp_flags
|= STYP_NOLOAD
;
616 #else /* COFF_WITH_PE */
618 /* The PE version; see above for the general comments. The non-PE
619 case seems to be more guessing, and breaks PE format; specifically,
620 .rdata is readonly, but it sure ain't text. Really, all this
621 should be set up properly in gas (or whatever assembler is in use),
622 and honor whatever objcopy/strip, etc. sent us as input. */
625 sec_to_styp_flags (const char *sec_name
, flagword sec_flags
)
629 /* caution: there are at least three groups of symbols that have
630 very similar bits and meanings: IMAGE_SCN*, SEC_*, and STYP_*.
631 SEC_* are the BFD internal flags, used for generic BFD
632 information. STYP_* are the COFF section flags which appear in
633 COFF files. IMAGE_SCN_* are the PE section flags which appear in
634 PE files. The STYP_* flags and the IMAGE_SCN_* flags overlap,
635 but there are more IMAGE_SCN_* flags. */
637 /* FIXME: There is no gas syntax to specify the debug section flag. */
638 if (CONST_STRNEQ (sec_name
, DOT_DEBUG
)
639 || CONST_STRNEQ (sec_name
, GNU_LINKONCE_WI
))
640 sec_flags
= SEC_DEBUGGING
;
645 if ((sec_flags
& SEC_CODE
) != 0)
646 styp_flags
|= IMAGE_SCN_CNT_CODE
;
647 if ((sec_flags
& SEC_DATA
) != 0)
648 styp_flags
|= IMAGE_SCN_CNT_INITIALIZED_DATA
;
649 if ((sec_flags
& SEC_ALLOC
) != 0 && (sec_flags
& SEC_LOAD
) == 0)
650 styp_flags
|= IMAGE_SCN_CNT_UNINITIALIZED_DATA
; /* ==STYP_BSS */
652 /* skip constRUCTOR */
654 if ((sec_flags
& SEC_IS_COMMON
) != 0)
655 styp_flags
|= IMAGE_SCN_LNK_COMDAT
;
656 if ((sec_flags
& SEC_DEBUGGING
) != 0)
657 styp_flags
|= IMAGE_SCN_MEM_DISCARDABLE
;
658 if ((sec_flags
& SEC_EXCLUDE
) != 0)
659 styp_flags
|= IMAGE_SCN_LNK_REMOVE
;
660 if ((sec_flags
& SEC_NEVER_LOAD
) != 0)
661 styp_flags
|= IMAGE_SCN_LNK_REMOVE
;
664 if (sec_flags
& SEC_LINK_ONCE
)
665 styp_flags
|= IMAGE_SCN_LNK_COMDAT
;
666 /* skip LINK_DUPLICATES */
667 /* skip LINKER_CREATED */
669 if (sec_flags
& (SEC_ALLOC
| SEC_LOAD
))
671 /* For now, the read/write bits are mapped onto SEC_READONLY, even
672 though the semantics don't quite match. The bits from the input
673 are retained in pei_section_data(abfd, section)->pe_flags. */
674 styp_flags
|= IMAGE_SCN_MEM_READ
; /* Always readable. */
675 if ((sec_flags
& SEC_READONLY
) == 0)
676 styp_flags
|= IMAGE_SCN_MEM_WRITE
; /* Invert READONLY for write. */
677 if (sec_flags
& SEC_CODE
)
678 styp_flags
|= IMAGE_SCN_MEM_EXECUTE
; /* CODE->EXECUTE. */
679 if (sec_flags
& SEC_COFF_SHARED
)
680 styp_flags
|= IMAGE_SCN_MEM_SHARED
; /* Shared remains meaningful. */
686 #endif /* COFF_WITH_PE */
688 /* Return a word with SEC_* flags set to represent the incoming STYP_*
689 flags (from scnhdr.s_flags). The inverse of this function is
690 sec_to_styp_flags(). NOTE: If you add to/change this routine, you
691 should probably mirror the changes in sec_to_styp_flags(). */
696 styp_to_sec_flags (bfd
*abfd ATTRIBUTE_UNUSED
,
699 asection
*section ATTRIBUTE_UNUSED
,
702 struct internal_scnhdr
*internal_s
= (struct internal_scnhdr
*) hdr
;
703 long styp_flags
= internal_s
->s_flags
;
704 flagword sec_flags
= 0;
707 if (styp_flags
& STYP_BLOCK
)
708 sec_flags
|= SEC_TIC54X_BLOCK
;
712 if (styp_flags
& STYP_CLINK
)
713 sec_flags
|= SEC_TIC54X_CLINK
;
717 if (styp_flags
& STYP_NOLOAD
)
718 sec_flags
|= SEC_NEVER_LOAD
;
719 #endif /* STYP_NOLOAD */
721 /* For 386 COFF, at least, an unloadable text or data section is
722 actually a shared library section. */
723 if (styp_flags
& STYP_TEXT
)
725 if (sec_flags
& SEC_NEVER_LOAD
)
726 sec_flags
|= SEC_CODE
| SEC_COFF_SHARED_LIBRARY
;
728 sec_flags
|= SEC_CODE
| SEC_LOAD
| SEC_ALLOC
;
730 else if (styp_flags
& STYP_DATA
)
732 if (sec_flags
& SEC_NEVER_LOAD
)
733 sec_flags
|= SEC_DATA
| SEC_COFF_SHARED_LIBRARY
;
735 sec_flags
|= SEC_DATA
| SEC_LOAD
| SEC_ALLOC
;
737 else if (styp_flags
& STYP_BSS
)
739 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
740 if (sec_flags
& SEC_NEVER_LOAD
)
741 sec_flags
|= SEC_ALLOC
| SEC_COFF_SHARED_LIBRARY
;
744 sec_flags
|= SEC_ALLOC
;
746 else if (styp_flags
& STYP_INFO
)
748 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
749 defined. coff_compute_section_file_positions uses
750 COFF_PAGE_SIZE to ensure that the low order bits of the
751 section VMA and the file offset match. If we don't know
752 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
753 and demand page loading of the file will fail. */
754 #if defined (COFF_PAGE_SIZE) && !defined (COFF_ALIGN_IN_S_FLAGS)
755 sec_flags
|= SEC_DEBUGGING
;
758 else if (styp_flags
& STYP_PAD
)
760 else if (strcmp (name
, _TEXT
) == 0)
762 if (sec_flags
& SEC_NEVER_LOAD
)
763 sec_flags
|= SEC_CODE
| SEC_COFF_SHARED_LIBRARY
;
765 sec_flags
|= SEC_CODE
| SEC_LOAD
| SEC_ALLOC
;
767 else if (strcmp (name
, _DATA
) == 0)
769 if (sec_flags
& SEC_NEVER_LOAD
)
770 sec_flags
|= SEC_DATA
| SEC_COFF_SHARED_LIBRARY
;
772 sec_flags
|= SEC_DATA
| SEC_LOAD
| SEC_ALLOC
;
774 else if (strcmp (name
, _BSS
) == 0)
776 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
777 if (sec_flags
& SEC_NEVER_LOAD
)
778 sec_flags
|= SEC_ALLOC
| SEC_COFF_SHARED_LIBRARY
;
781 sec_flags
|= SEC_ALLOC
;
783 else if (CONST_STRNEQ (name
, DOT_DEBUG
)
785 || strcmp (name
, _COMMENT
) == 0
787 #ifdef COFF_LONG_SECTION_NAMES
788 || CONST_STRNEQ (name
, GNU_LINKONCE_WI
)
790 || CONST_STRNEQ (name
, ".stab"))
792 #ifdef COFF_PAGE_SIZE
793 sec_flags
|= SEC_DEBUGGING
;
797 else if (strcmp (name
, _LIB
) == 0)
801 else if (strcmp (name
, _LIT
) == 0)
802 sec_flags
= SEC_LOAD
| SEC_ALLOC
| SEC_READONLY
;
805 sec_flags
|= SEC_ALLOC
| SEC_LOAD
;
807 #ifdef STYP_LIT /* A29k readonly text/data section type. */
808 if ((styp_flags
& STYP_LIT
) == STYP_LIT
)
809 sec_flags
= (SEC_LOAD
| SEC_ALLOC
| SEC_READONLY
);
810 #endif /* STYP_LIT */
812 #ifdef STYP_OTHER_LOAD /* Other loaded sections. */
813 if (styp_flags
& STYP_OTHER_LOAD
)
814 sec_flags
= (SEC_LOAD
| SEC_ALLOC
);
815 #endif /* STYP_SDATA */
817 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
818 /* As a GNU extension, if the name begins with .gnu.linkonce, we
819 only link a single copy of the section. This is used to support
820 g++. g++ will emit each template expansion in its own section.
821 The symbols will be defined as weak, so that multiple definitions
822 are permitted. The GNU linker extension is to actually discard
823 all but one of the sections. */
824 if (CONST_STRNEQ (name
, ".gnu.linkonce"))
825 sec_flags
|= SEC_LINK_ONCE
| SEC_LINK_DUPLICATES_DISCARD
;
828 if (flags_ptr
== NULL
)
831 * flags_ptr
= sec_flags
;
835 #else /* COFF_WITH_PE */
838 handle_COMDAT (bfd
* abfd
,
844 struct internal_scnhdr
*internal_s
= (struct internal_scnhdr
*) hdr
;
845 bfd_byte
*esymstart
, *esym
, *esymend
;
847 char *target_name
= NULL
;
849 sec_flags
|= SEC_LINK_ONCE
;
851 /* Unfortunately, the PE format stores essential information in
852 the symbol table, of all places. We need to extract that
853 information now, so that objdump and the linker will know how
854 to handle the section without worrying about the symbols. We
855 can't call slurp_symtab, because the linker doesn't want the
858 /* COMDAT sections are special. The first symbol is the section
859 symbol, which tells what kind of COMDAT section it is. The
860 second symbol is the "comdat symbol" - the one with the
861 unique name. GNU uses the section symbol for the unique
862 name; MS uses ".text" for every comdat section. Sigh. - DJ */
864 /* This is not mirrored in sec_to_styp_flags(), but there
865 doesn't seem to be a need to, either, and it would at best be
868 if (! _bfd_coff_get_external_symbols (abfd
))
871 esymstart
= esym
= (bfd_byte
*) obj_coff_external_syms (abfd
);
872 esymend
= esym
+ obj_raw_syment_count (abfd
) * bfd_coff_symesz (abfd
);
874 while (esym
< esymend
)
876 struct internal_syment isym
;
877 char buf
[SYMNMLEN
+ 1];
880 bfd_coff_swap_sym_in (abfd
, esym
, & isym
);
882 if (sizeof (internal_s
->s_name
) > SYMNMLEN
)
884 /* This case implies that the matching
885 symbol name will be in the string table. */
889 if (isym
.n_scnum
== section
->target_index
)
891 /* According to the MSVC documentation, the first
892 TWO entries with the section # are both of
893 interest to us. The first one is the "section
894 symbol" (section name). The second is the comdat
895 symbol name. Here, we've found the first
896 qualifying entry; we distinguish it from the
897 second with a state flag.
899 In the case of gas-generated (at least until that
900 is fixed) .o files, it isn't necessarily the
901 second one. It may be some other later symbol.
903 Since gas also doesn't follow MS conventions and
904 emits the section similar to .text$<name>, where
905 <something> is the name we're looking for, we
906 distinguish the two as follows:
908 If the section name is simply a section name (no
909 $) we presume it's MS-generated, and look at
910 precisely the second symbol for the comdat name.
911 If the section name has a $, we assume it's
912 gas-generated, and look for <something> (whatever
913 follows the $) as the comdat symbol. */
915 /* All 3 branches use this. */
916 symname
= _bfd_coff_internal_syment_name (abfd
, &isym
, buf
);
925 /* The first time we've seen the symbol. */
926 union internal_auxent aux
;
928 /* If it isn't the stuff we're expecting, die;
929 The MS documentation is vague, but it
930 appears that the second entry serves BOTH
931 as the comdat symbol and the defining
932 symbol record (either C_STAT or C_EXT,
933 possibly with an aux entry with debug
934 information if it's a function.) It
935 appears the only way to find the second one
936 is to count. (On Intel, they appear to be
937 adjacent, but on Alpha, they have been
940 Here, we think we've found the first one,
941 but there's some checking we can do to be
944 if (! (isym
.n_sclass
== C_STAT
945 && isym
.n_type
== T_NULL
946 && isym
.n_value
== 0))
949 /* FIXME LATER: MSVC generates section names
950 like .text for comdats. Gas generates
951 names like .text$foo__Fv (in the case of a
952 function). See comment above for more. */
954 if (strcmp (name
, symname
) != 0)
955 _bfd_error_handler (_("%B: warning: COMDAT symbol '%s' does not match section name '%s'"),
956 abfd
, symname
, name
);
960 /* This is the section symbol. */
961 bfd_coff_swap_aux_in (abfd
, (esym
+ bfd_coff_symesz (abfd
)),
962 isym
.n_type
, isym
.n_sclass
,
963 0, isym
.n_numaux
, & aux
);
965 target_name
= strchr (name
, '$');
966 if (target_name
!= NULL
)
974 /* FIXME: Microsoft uses NODUPLICATES and
975 ASSOCIATIVE, but gnu uses ANY and
976 SAME_SIZE. Unfortunately, gnu doesn't do
977 the comdat symbols right. So, until we can
978 fix it to do the right thing, we are
979 temporarily disabling comdats for the MS
980 types (they're used in DLLs and C++, but we
981 don't support *their* C++ libraries anyway
984 /* Cygwin does not follow the MS style, and
985 uses ANY and SAME_SIZE where NODUPLICATES
986 and ASSOCIATIVE should be used. For
987 Interix, we just do the right thing up
990 switch (aux
.x_scn
.x_comdat
)
992 case IMAGE_COMDAT_SELECT_NODUPLICATES
:
993 #ifdef STRICT_PE_FORMAT
994 sec_flags
|= SEC_LINK_DUPLICATES_ONE_ONLY
;
996 sec_flags
&= ~SEC_LINK_ONCE
;
1000 case IMAGE_COMDAT_SELECT_ANY
:
1001 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
1004 case IMAGE_COMDAT_SELECT_SAME_SIZE
:
1005 sec_flags
|= SEC_LINK_DUPLICATES_SAME_SIZE
;
1008 case IMAGE_COMDAT_SELECT_EXACT_MATCH
:
1009 /* Not yet fully implemented ??? */
1010 sec_flags
|= SEC_LINK_DUPLICATES_SAME_CONTENTS
;
1013 /* debug$S gets this case; other
1016 /* There may be no symbol... we'll search
1017 the whole table... Is this the right
1018 place to play this game? Or should we do
1019 it when reading it in. */
1020 case IMAGE_COMDAT_SELECT_ASSOCIATIVE
:
1021 #ifdef STRICT_PE_FORMAT
1022 /* FIXME: This is not currently implemented. */
1023 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
1025 sec_flags
&= ~SEC_LINK_ONCE
;
1029 default: /* 0 means "no symbol" */
1030 /* debug$F gets this case; other
1032 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
1039 /* Gas mode: the first matching on partial name. */
1041 #ifndef TARGET_UNDERSCORE
1042 #define TARGET_UNDERSCORE 0
1044 /* Is this the name we're looking for ? */
1045 if (strcmp (target_name
,
1046 symname
+ (TARGET_UNDERSCORE
? 1 : 0)) != 0)
1048 /* Not the name we're looking for */
1049 esym
+= (isym
.n_numaux
+ 1) * bfd_coff_symesz (abfd
);
1054 /* MSVC mode: the lexically second symbol (or
1055 drop through from the above). */
1060 /* This must the second symbol with the
1061 section #. It is the actual symbol name.
1062 Intel puts the two adjacent, but Alpha (at
1063 least) spreads them out. */
1065 amt
= sizeof (struct coff_comdat_info
);
1066 coff_section_data (abfd
, section
)->comdat
1067 = bfd_alloc (abfd
, amt
);
1068 if (coff_section_data (abfd
, section
)->comdat
== NULL
)
1071 coff_section_data (abfd
, section
)->comdat
->symbol
=
1072 (esym
- esymstart
) / bfd_coff_symesz (abfd
);
1074 amt
= strlen (symname
) + 1;
1075 newname
= bfd_alloc (abfd
, amt
);
1076 if (newname
== NULL
)
1079 strcpy (newname
, symname
);
1080 coff_section_data (abfd
, section
)->comdat
->name
1088 esym
+= (isym
.n_numaux
+ 1) * bfd_coff_symesz (abfd
);
1096 /* The PE version; see above for the general comments.
1098 Since to set the SEC_LINK_ONCE and associated flags, we have to
1099 look at the symbol table anyway, we return the symbol table index
1100 of the symbol being used as the COMDAT symbol. This is admittedly
1101 ugly, but there's really nowhere else that we have access to the
1102 required information. FIXME: Is the COMDAT symbol index used for
1103 any purpose other than objdump? */
1106 styp_to_sec_flags (bfd
*abfd
,
1110 flagword
*flags_ptr
)
1112 struct internal_scnhdr
*internal_s
= (struct internal_scnhdr
*) hdr
;
1113 long styp_flags
= internal_s
->s_flags
;
1115 bfd_boolean result
= TRUE
;
1117 /* Assume read only unless IMAGE_SCN_MEM_WRITE is specified. */
1118 sec_flags
= SEC_READONLY
;
1120 /* Process each flag bit in styp_flags in turn. */
1123 long flag
= styp_flags
& - styp_flags
;
1124 char * unhandled
= NULL
;
1126 styp_flags
&= ~ flag
;
1128 /* We infer from the distinct read/write/execute bits the settings
1129 of some of the bfd flags; the actual values, should we need them,
1130 are also in pei_section_data (abfd, section)->pe_flags. */
1135 unhandled
= "STYP_DSECT";
1138 unhandled
= "STYP_GROUP";
1141 unhandled
= "STYP_COPY";
1144 unhandled
= "STYP_OVER";
1146 #ifdef SEC_NEVER_LOAD
1148 sec_flags
|= SEC_NEVER_LOAD
;
1151 case IMAGE_SCN_MEM_READ
:
1152 /* Ignored, assume it always to be true. */
1154 case IMAGE_SCN_TYPE_NO_PAD
:
1157 case IMAGE_SCN_LNK_OTHER
:
1158 unhandled
= "IMAGE_SCN_LNK_OTHER";
1160 case IMAGE_SCN_MEM_NOT_CACHED
:
1161 unhandled
= "IMAGE_SCN_MEM_NOT_CACHED";
1163 case IMAGE_SCN_MEM_NOT_PAGED
:
1164 /* Generate a warning message rather using the 'unhandled'
1165 variable as this will allow some .sys files generate by
1166 other toolchains to be processed. See bugzilla issue 196. */
1167 _bfd_error_handler (_("%B: Warning: Ignoring section flag IMAGE_SCN_MEM_NOT_PAGED in section %s"),
1170 case IMAGE_SCN_MEM_EXECUTE
:
1171 sec_flags
|= SEC_CODE
;
1173 case IMAGE_SCN_MEM_WRITE
:
1174 sec_flags
&= ~ SEC_READONLY
;
1176 case IMAGE_SCN_MEM_DISCARDABLE
:
1177 /* The MS PE spec says that debug sections are DISCARDABLE,
1178 but the presence of a DISCARDABLE flag does not necessarily
1179 mean that a given section contains debug information. Thus
1180 we only set the SEC_DEBUGGING flag on sections that we
1181 recognise as containing debug information. */
1182 if (CONST_STRNEQ (name
, DOT_DEBUG
)
1184 || strcmp (name
, _COMMENT
) == 0
1186 #ifdef COFF_LONG_SECTION_NAMES
1187 || CONST_STRNEQ (name
, GNU_LINKONCE_WI
)
1189 || CONST_STRNEQ (name
, ".stab"))
1190 sec_flags
|= SEC_DEBUGGING
;
1192 case IMAGE_SCN_MEM_SHARED
:
1193 sec_flags
|= SEC_COFF_SHARED
;
1195 case IMAGE_SCN_LNK_REMOVE
:
1196 sec_flags
|= SEC_EXCLUDE
;
1198 case IMAGE_SCN_CNT_CODE
:
1199 sec_flags
|= SEC_CODE
| SEC_ALLOC
| SEC_LOAD
;
1201 case IMAGE_SCN_CNT_INITIALIZED_DATA
:
1202 sec_flags
|= SEC_DATA
| SEC_ALLOC
| SEC_LOAD
;
1204 case IMAGE_SCN_CNT_UNINITIALIZED_DATA
:
1205 sec_flags
|= SEC_ALLOC
;
1207 case IMAGE_SCN_LNK_INFO
:
1208 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
1209 defined. coff_compute_section_file_positions uses
1210 COFF_PAGE_SIZE to ensure that the low order bits of the
1211 section VMA and the file offset match. If we don't know
1212 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
1213 and demand page loading of the file will fail. */
1214 #ifdef COFF_PAGE_SIZE
1215 sec_flags
|= SEC_DEBUGGING
;
1218 case IMAGE_SCN_LNK_COMDAT
:
1219 /* COMDAT gets very special treatment. */
1220 sec_flags
= handle_COMDAT (abfd
, sec_flags
, hdr
, name
, section
);
1223 /* Silently ignore for now. */
1227 /* If the section flag was not handled, report it here. */
1228 if (unhandled
!= NULL
)
1230 (*_bfd_error_handler
)
1231 (_("%B (%s): Section flag %s (0x%x) ignored"),
1232 abfd
, name
, unhandled
, flag
);
1237 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
1238 /* As a GNU extension, if the name begins with .gnu.linkonce, we
1239 only link a single copy of the section. This is used to support
1240 g++. g++ will emit each template expansion in its own section.
1241 The symbols will be defined as weak, so that multiple definitions
1242 are permitted. The GNU linker extension is to actually discard
1243 all but one of the sections. */
1244 if (CONST_STRNEQ (name
, ".gnu.linkonce"))
1245 sec_flags
|= SEC_LINK_ONCE
| SEC_LINK_DUPLICATES_DISCARD
;
1249 * flags_ptr
= sec_flags
;
1254 #endif /* COFF_WITH_PE */
1256 #define get_index(symbol) ((symbol)->udata.i)
1260 bfd_coff_backend_data
1264 .{* COFF symbol classifications. *}
1266 .enum coff_symbol_classification
1268 . {* Global symbol. *}
1269 . COFF_SYMBOL_GLOBAL,
1270 . {* Common symbol. *}
1271 . COFF_SYMBOL_COMMON,
1272 . {* Undefined symbol. *}
1273 . COFF_SYMBOL_UNDEFINED,
1274 . {* Local symbol. *}
1275 . COFF_SYMBOL_LOCAL,
1276 . {* PE section symbol. *}
1277 . COFF_SYMBOL_PE_SECTION
1280 Special entry points for gdb to swap in coff symbol table parts:
1283 . void (*_bfd_coff_swap_aux_in)
1284 . (bfd *, void *, int, int, int, int, void *);
1286 . void (*_bfd_coff_swap_sym_in)
1287 . (bfd *, void *, void *);
1289 . void (*_bfd_coff_swap_lineno_in)
1290 . (bfd *, void *, void *);
1292 . unsigned int (*_bfd_coff_swap_aux_out)
1293 . (bfd *, void *, int, int, int, int, void *);
1295 . unsigned int (*_bfd_coff_swap_sym_out)
1296 . (bfd *, void *, void *);
1298 . unsigned int (*_bfd_coff_swap_lineno_out)
1299 . (bfd *, void *, void *);
1301 . unsigned int (*_bfd_coff_swap_reloc_out)
1302 . (bfd *, void *, void *);
1304 . unsigned int (*_bfd_coff_swap_filehdr_out)
1305 . (bfd *, void *, void *);
1307 . unsigned int (*_bfd_coff_swap_aouthdr_out)
1308 . (bfd *, void *, void *);
1310 . unsigned int (*_bfd_coff_swap_scnhdr_out)
1311 . (bfd *, void *, void *);
1313 . unsigned int _bfd_filhsz;
1314 . unsigned int _bfd_aoutsz;
1315 . unsigned int _bfd_scnhsz;
1316 . unsigned int _bfd_symesz;
1317 . unsigned int _bfd_auxesz;
1318 . unsigned int _bfd_relsz;
1319 . unsigned int _bfd_linesz;
1320 . unsigned int _bfd_filnmlen;
1321 . bfd_boolean _bfd_coff_long_filenames;
1323 . bfd_boolean _bfd_coff_long_section_names;
1324 . bfd_boolean (*_bfd_coff_set_long_section_names)
1327 . unsigned int _bfd_coff_default_section_alignment_power;
1328 . bfd_boolean _bfd_coff_force_symnames_in_strings;
1329 . unsigned int _bfd_coff_debug_string_prefix_length;
1331 . void (*_bfd_coff_swap_filehdr_in)
1332 . (bfd *, void *, void *);
1334 . void (*_bfd_coff_swap_aouthdr_in)
1335 . (bfd *, void *, void *);
1337 . void (*_bfd_coff_swap_scnhdr_in)
1338 . (bfd *, void *, void *);
1340 . void (*_bfd_coff_swap_reloc_in)
1341 . (bfd *abfd, void *, void *);
1343 . bfd_boolean (*_bfd_coff_bad_format_hook)
1346 . bfd_boolean (*_bfd_coff_set_arch_mach_hook)
1349 . void * (*_bfd_coff_mkobject_hook)
1350 . (bfd *, void *, void *);
1352 . bfd_boolean (*_bfd_styp_to_sec_flags_hook)
1353 . (bfd *, void *, const char *, asection *, flagword *);
1355 . void (*_bfd_set_alignment_hook)
1356 . (bfd *, asection *, void *);
1358 . bfd_boolean (*_bfd_coff_slurp_symbol_table)
1361 . bfd_boolean (*_bfd_coff_symname_in_debug)
1362 . (bfd *, struct internal_syment *);
1364 . bfd_boolean (*_bfd_coff_pointerize_aux_hook)
1365 . (bfd *, combined_entry_type *, combined_entry_type *,
1366 . unsigned int, combined_entry_type *);
1368 . bfd_boolean (*_bfd_coff_print_aux)
1369 . (bfd *, FILE *, combined_entry_type *, combined_entry_type *,
1370 . combined_entry_type *, unsigned int);
1372 . void (*_bfd_coff_reloc16_extra_cases)
1373 . (bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *,
1374 . bfd_byte *, unsigned int *, unsigned int *);
1376 . int (*_bfd_coff_reloc16_estimate)
1377 . (bfd *, asection *, arelent *, unsigned int,
1378 . struct bfd_link_info *);
1380 . enum coff_symbol_classification (*_bfd_coff_classify_symbol)
1381 . (bfd *, struct internal_syment *);
1383 . bfd_boolean (*_bfd_coff_compute_section_file_positions)
1386 . bfd_boolean (*_bfd_coff_start_final_link)
1387 . (bfd *, struct bfd_link_info *);
1389 . bfd_boolean (*_bfd_coff_relocate_section)
1390 . (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
1391 . struct internal_reloc *, struct internal_syment *, asection **);
1393 . reloc_howto_type *(*_bfd_coff_rtype_to_howto)
1394 . (bfd *, asection *, struct internal_reloc *,
1395 . struct coff_link_hash_entry *, struct internal_syment *,
1398 . bfd_boolean (*_bfd_coff_adjust_symndx)
1399 . (bfd *, struct bfd_link_info *, bfd *, asection *,
1400 . struct internal_reloc *, bfd_boolean *);
1402 . bfd_boolean (*_bfd_coff_link_add_one_symbol)
1403 . (struct bfd_link_info *, bfd *, const char *, flagword,
1404 . asection *, bfd_vma, const char *, bfd_boolean, bfd_boolean,
1405 . struct bfd_link_hash_entry **);
1407 . bfd_boolean (*_bfd_coff_link_output_has_begun)
1408 . (bfd *, struct coff_final_link_info *);
1410 . bfd_boolean (*_bfd_coff_final_link_postscript)
1411 . (bfd *, struct coff_final_link_info *);
1413 . bfd_boolean (*_bfd_coff_print_pdata)
1416 .} bfd_coff_backend_data;
1418 .#define coff_backend_info(abfd) \
1419 . ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
1421 .#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \
1422 . ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i))
1424 .#define bfd_coff_swap_sym_in(a,e,i) \
1425 . ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))
1427 .#define bfd_coff_swap_lineno_in(a,e,i) \
1428 . ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))
1430 .#define bfd_coff_swap_reloc_out(abfd, i, o) \
1431 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))
1433 .#define bfd_coff_swap_lineno_out(abfd, i, o) \
1434 . ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))
1436 .#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \
1437 . ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o))
1439 .#define bfd_coff_swap_sym_out(abfd, i,o) \
1440 . ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))
1442 .#define bfd_coff_swap_scnhdr_out(abfd, i,o) \
1443 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))
1445 .#define bfd_coff_swap_filehdr_out(abfd, i,o) \
1446 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))
1448 .#define bfd_coff_swap_aouthdr_out(abfd, i,o) \
1449 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
1451 .#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
1452 .#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
1453 .#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
1454 .#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
1455 .#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
1456 .#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz)
1457 .#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
1458 .#define bfd_coff_filnmlen(abfd) (coff_backend_info (abfd)->_bfd_filnmlen)
1459 .#define bfd_coff_long_filenames(abfd) \
1460 . (coff_backend_info (abfd)->_bfd_coff_long_filenames)
1461 .#define bfd_coff_long_section_names(abfd) \
1462 . (coff_backend_info (abfd)->_bfd_coff_long_section_names)
1463 .#define bfd_coff_set_long_section_names(abfd, enable) \
1464 . ((coff_backend_info (abfd)->_bfd_coff_set_long_section_names) (abfd, enable))
1465 .#define bfd_coff_default_section_alignment_power(abfd) \
1466 . (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power)
1467 .#define bfd_coff_swap_filehdr_in(abfd, i,o) \
1468 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
1470 .#define bfd_coff_swap_aouthdr_in(abfd, i,o) \
1471 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))
1473 .#define bfd_coff_swap_scnhdr_in(abfd, i,o) \
1474 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
1476 .#define bfd_coff_swap_reloc_in(abfd, i, o) \
1477 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))
1479 .#define bfd_coff_bad_format_hook(abfd, filehdr) \
1480 . ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
1482 .#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
1483 . ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
1484 .#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\
1485 . ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook)\
1486 . (abfd, filehdr, aouthdr))
1488 .#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section, flags_ptr)\
1489 . ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\
1490 . (abfd, scnhdr, name, section, flags_ptr))
1492 .#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
1493 . ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
1495 .#define bfd_coff_slurp_symbol_table(abfd)\
1496 . ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))
1498 .#define bfd_coff_symname_in_debug(abfd, sym)\
1499 . ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
1501 .#define bfd_coff_force_symnames_in_strings(abfd)\
1502 . (coff_backend_info (abfd)->_bfd_coff_force_symnames_in_strings)
1504 .#define bfd_coff_debug_string_prefix_length(abfd)\
1505 . (coff_backend_info (abfd)->_bfd_coff_debug_string_prefix_length)
1507 .#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\
1508 . ((coff_backend_info (abfd)->_bfd_coff_print_aux)\
1509 . (abfd, file, base, symbol, aux, indaux))
1511 .#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order,\
1512 . reloc, data, src_ptr, dst_ptr)\
1513 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
1514 . (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))
1516 .#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\
1517 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
1518 . (abfd, section, reloc, shrink, link_info))
1520 .#define bfd_coff_classify_symbol(abfd, sym)\
1521 . ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\
1524 .#define bfd_coff_compute_section_file_positions(abfd)\
1525 . ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
1528 .#define bfd_coff_start_final_link(obfd, info)\
1529 . ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\
1531 .#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
1532 . ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
1533 . (obfd, info, ibfd, o, con, rel, isyms, secs))
1534 .#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\
1535 . ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\
1536 . (abfd, sec, rel, h, sym, addendp))
1537 .#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\
1538 . ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\
1539 . (obfd, info, ibfd, sec, rel, adjustedp))
1540 .#define bfd_coff_link_add_one_symbol(info, abfd, name, flags, section,\
1541 . value, string, cp, coll, hashp)\
1542 . ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\
1543 . (info, abfd, name, flags, section, value, string, cp, coll, hashp))
1545 .#define bfd_coff_link_output_has_begun(a,p) \
1546 . ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a, p))
1547 .#define bfd_coff_final_link_postscript(a,p) \
1548 . ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a, p))
1550 .#define bfd_coff_have_print_pdata(a) \
1551 . (coff_backend_info (a)->_bfd_coff_print_pdata)
1552 .#define bfd_coff_print_pdata(a,p) \
1553 . ((coff_backend_info (a)->_bfd_coff_print_pdata) (a, p))
1557 /* See whether the magic number matches. */
1560 coff_bad_format_hook (bfd
* abfd ATTRIBUTE_UNUSED
, void * filehdr
)
1562 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1564 if (BADMAG (*internal_f
))
1567 /* If the optional header is NULL or not the correct size then
1568 quit; the only difference I can see between m88k dgux headers (MC88DMAGIC)
1569 and Intel 960 readwrite headers (I960WRMAGIC) is that the
1570 optional header is of a different size.
1572 But the mips keeps extra stuff in it's opthdr, so dont check
1575 #if defined(M88) || defined(I960)
1576 if (internal_f
->f_opthdr
!= 0 && bfd_coff_aoutsz (abfd
) != internal_f
->f_opthdr
)
1585 ticoff0_bad_format_hook (bfd
*abfd ATTRIBUTE_UNUSED
, void * filehdr
)
1587 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1589 if (COFF0_BADMAG (*internal_f
))
1598 ticoff1_bad_format_hook (bfd
*abfd ATTRIBUTE_UNUSED
, void * filehdr
)
1600 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1602 if (COFF1_BADMAG (*internal_f
))
1609 /* Check whether this section uses an alignment other than the
1613 coff_set_custom_section_alignment (bfd
*abfd ATTRIBUTE_UNUSED
,
1615 const struct coff_section_alignment_entry
*alignment_table
,
1616 const unsigned int table_size
)
1618 const unsigned int default_alignment
= COFF_DEFAULT_SECTION_ALIGNMENT_POWER
;
1621 for (i
= 0; i
< table_size
; ++i
)
1623 const char *secname
= bfd_get_section_name (abfd
, section
);
1625 if (alignment_table
[i
].comparison_length
== (unsigned int) -1
1626 ? strcmp (alignment_table
[i
].name
, secname
) == 0
1627 : strncmp (alignment_table
[i
].name
, secname
,
1628 alignment_table
[i
].comparison_length
) == 0)
1631 if (i
>= table_size
)
1634 if (alignment_table
[i
].default_alignment_min
!= COFF_ALIGNMENT_FIELD_EMPTY
1635 && default_alignment
< alignment_table
[i
].default_alignment_min
)
1638 if (alignment_table
[i
].default_alignment_max
!= COFF_ALIGNMENT_FIELD_EMPTY
1639 #if COFF_DEFAULT_SECTION_ALIGNMENT_POWER != 0
1640 && default_alignment
> alignment_table
[i
].default_alignment_max
1645 section
->alignment_power
= alignment_table
[i
].alignment_power
;
1648 /* Custom section alignment records. */
1650 static const struct coff_section_alignment_entry
1651 coff_section_alignment_table
[] =
1653 #ifdef COFF_SECTION_ALIGNMENT_ENTRIES
1654 COFF_SECTION_ALIGNMENT_ENTRIES
,
1656 /* There must not be any gaps between .stabstr sections. */
1657 { COFF_SECTION_NAME_PARTIAL_MATCH (".stabstr"),
1658 1, COFF_ALIGNMENT_FIELD_EMPTY
, 0 },
1659 /* The .stab section must be aligned to 2**2 at most, to avoid gaps. */
1660 { COFF_SECTION_NAME_PARTIAL_MATCH (".stab"),
1661 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 },
1662 /* Similarly for the .ctors and .dtors sections. */
1663 { COFF_SECTION_NAME_EXACT_MATCH (".ctors"),
1664 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 },
1665 { COFF_SECTION_NAME_EXACT_MATCH (".dtors"),
1666 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 }
1669 static const unsigned int coff_section_alignment_table_size
=
1670 sizeof coff_section_alignment_table
/ sizeof coff_section_alignment_table
[0];
1672 /* Initialize a section structure with information peculiar to this
1673 particular implementation of COFF. */
1676 coff_new_section_hook (bfd
* abfd
, asection
* section
)
1678 combined_entry_type
*native
;
1681 section
->alignment_power
= COFF_DEFAULT_SECTION_ALIGNMENT_POWER
;
1684 if (bfd_xcoff_text_align_power (abfd
) != 0
1685 && strcmp (bfd_get_section_name (abfd
, section
), ".text") == 0)
1686 section
->alignment_power
= bfd_xcoff_text_align_power (abfd
);
1687 if (bfd_xcoff_data_align_power (abfd
) != 0
1688 && strcmp (bfd_get_section_name (abfd
, section
), ".data") == 0)
1689 section
->alignment_power
= bfd_xcoff_data_align_power (abfd
);
1692 /* Set up the section symbol. */
1693 if (!_bfd_generic_new_section_hook (abfd
, section
))
1696 /* Allocate aux records for section symbols, to store size and
1699 @@ The 10 is a guess at a plausible maximum number of aux entries
1700 (but shouldn't be a constant). */
1701 amt
= sizeof (combined_entry_type
) * 10;
1702 native
= bfd_zalloc (abfd
, amt
);
1706 /* We don't need to set up n_name, n_value, or n_scnum in the native
1707 symbol information, since they'll be overridden by the BFD symbol
1708 anyhow. However, we do need to set the type and storage class,
1709 in case this symbol winds up getting written out. The value 0
1710 for n_numaux is already correct. */
1712 native
->u
.syment
.n_type
= T_NULL
;
1713 native
->u
.syment
.n_sclass
= C_STAT
;
1715 coffsymbol (section
->symbol
)->native
= native
;
1717 coff_set_custom_section_alignment (abfd
, section
,
1718 coff_section_alignment_table
,
1719 coff_section_alignment_table_size
);
1724 #ifdef COFF_ALIGN_IN_SECTION_HEADER
1726 /* Set the alignment of a BFD section. */
1729 coff_set_alignment_hook (bfd
* abfd ATTRIBUTE_UNUSED
,
1733 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1737 /* Extract ALIGN from 2**ALIGN stored in section header. */
1738 for (i
= 0; i
< 32; i
++)
1739 if ((1 << i
) >= hdr
->s_align
)
1743 /* TI tools puts the alignment power in bits 8-11. */
1744 i
= (hdr
->s_flags
>> 8) & 0xF ;
1746 #ifdef COFF_DECODE_ALIGNMENT
1747 i
= COFF_DECODE_ALIGNMENT(hdr
->s_flags
);
1749 section
->alignment_power
= i
;
1751 #ifdef coff_set_section_load_page
1752 coff_set_section_load_page (section
, hdr
->s_page
);
1756 #else /* ! COFF_ALIGN_IN_SECTION_HEADER */
1760 coff_set_alignment_hook (bfd
* abfd ATTRIBUTE_UNUSED
,
1764 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1766 unsigned int alignment_power_const
1767 = hdr
->s_flags
& IMAGE_SCN_ALIGN_POWER_BIT_MASK
;
1769 switch (alignment_power_const
)
1771 case IMAGE_SCN_ALIGN_8192BYTES
:
1772 case IMAGE_SCN_ALIGN_4096BYTES
:
1773 case IMAGE_SCN_ALIGN_2048BYTES
:
1774 case IMAGE_SCN_ALIGN_1024BYTES
:
1775 case IMAGE_SCN_ALIGN_512BYTES
:
1776 case IMAGE_SCN_ALIGN_256BYTES
:
1777 case IMAGE_SCN_ALIGN_128BYTES
:
1778 case IMAGE_SCN_ALIGN_64BYTES
:
1779 case IMAGE_SCN_ALIGN_32BYTES
:
1780 case IMAGE_SCN_ALIGN_16BYTES
:
1781 case IMAGE_SCN_ALIGN_8BYTES
:
1782 case IMAGE_SCN_ALIGN_4BYTES
:
1783 case IMAGE_SCN_ALIGN_2BYTES
:
1784 case IMAGE_SCN_ALIGN_1BYTES
:
1785 section
->alignment_power
1786 = IMAGE_SCN_ALIGN_POWER_NUM (alignment_power_const
);
1792 /* In a PE image file, the s_paddr field holds the virtual size of a
1793 section, while the s_size field holds the raw size. We also keep
1794 the original section flag value, since not every bit can be
1795 mapped onto a generic BFD section bit. */
1796 if (coff_section_data (abfd
, section
) == NULL
)
1798 amt
= sizeof (struct coff_section_tdata
);
1799 section
->used_by_bfd
= bfd_zalloc (abfd
, amt
);
1800 if (section
->used_by_bfd
== NULL
)
1801 /* FIXME: Return error. */
1805 if (pei_section_data (abfd
, section
) == NULL
)
1807 amt
= sizeof (struct pei_section_tdata
);
1808 coff_section_data (abfd
, section
)->tdata
= bfd_zalloc (abfd
, amt
);
1809 if (coff_section_data (abfd
, section
)->tdata
== NULL
)
1810 /* FIXME: Return error. */
1813 pei_section_data (abfd
, section
)->virt_size
= hdr
->s_paddr
;
1814 pei_section_data (abfd
, section
)->pe_flags
= hdr
->s_flags
;
1816 section
->lma
= hdr
->s_vaddr
;
1818 /* Check for extended relocs. */
1819 if (hdr
->s_flags
& IMAGE_SCN_LNK_NRELOC_OVFL
)
1821 struct external_reloc dst
;
1822 struct internal_reloc n
;
1823 file_ptr oldpos
= bfd_tell (abfd
);
1824 bfd_size_type relsz
= bfd_coff_relsz (abfd
);
1826 bfd_seek (abfd
, (file_ptr
) hdr
->s_relptr
, 0);
1827 if (bfd_bread (& dst
, relsz
, abfd
) != relsz
)
1830 coff_swap_reloc_in (abfd
, &dst
, &n
);
1831 bfd_seek (abfd
, oldpos
, 0);
1832 section
->reloc_count
= hdr
->s_nreloc
= n
.r_vaddr
- 1;
1833 section
->rel_filepos
+= relsz
;
1835 else if (hdr
->s_nreloc
== 0xffff)
1836 (*_bfd_error_handler
)
1837 ("%s: warning: claims to have 0xffff relocs, without overflow",
1838 bfd_get_filename (abfd
));
1841 #undef ELIFALIGN_SET
1843 #else /* ! COFF_WITH_PE */
1846 /* We grossly abuse this function to handle XCOFF overflow headers.
1847 When we see one, we correct the reloc and line number counts in the
1848 real header, and remove the section we just created. */
1851 coff_set_alignment_hook (bfd
*abfd
, asection
*section
, void * scnhdr
)
1853 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1856 if ((hdr
->s_flags
& STYP_OVRFLO
) == 0)
1859 real_sec
= coff_section_from_bfd_index (abfd
, (int) hdr
->s_nreloc
);
1860 if (real_sec
== NULL
)
1863 real_sec
->reloc_count
= hdr
->s_paddr
;
1864 real_sec
->lineno_count
= hdr
->s_vaddr
;
1866 if (!bfd_section_removed_from_list (abfd
, section
))
1868 bfd_section_list_remove (abfd
, section
);
1869 --abfd
->section_count
;
1873 #else /* ! RS6000COFF_C */
1875 #define coff_set_alignment_hook \
1876 ((void (*) (bfd *, asection *, void *)) bfd_void)
1878 #endif /* ! RS6000COFF_C */
1879 #endif /* ! COFF_WITH_PE */
1880 #endif /* ! COFF_ALIGN_IN_SECTION_HEADER */
1882 #ifndef coff_mkobject
1885 coff_mkobject (bfd
* abfd
)
1887 coff_data_type
*coff
;
1888 bfd_size_type amt
= sizeof (coff_data_type
);
1890 abfd
->tdata
.coff_obj_data
= bfd_zalloc (abfd
, amt
);
1891 if (abfd
->tdata
.coff_obj_data
== NULL
)
1893 coff
= coff_data (abfd
);
1894 coff
->symbols
= NULL
;
1895 coff
->conversion_table
= NULL
;
1896 coff
->raw_syments
= NULL
;
1897 coff
->relocbase
= 0;
1898 coff
->local_toc_sym_map
= 0;
1900 /* make_abs_section(abfd);*/
1906 /* Create the COFF backend specific information. */
1908 #ifndef coff_mkobject_hook
1910 coff_mkobject_hook (bfd
* abfd
,
1912 void * aouthdr ATTRIBUTE_UNUSED
)
1914 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1915 coff_data_type
*coff
;
1917 if (! coff_mkobject (abfd
))
1920 coff
= coff_data (abfd
);
1922 coff
->sym_filepos
= internal_f
->f_symptr
;
1924 /* These members communicate important constants about the symbol
1925 table to GDB's symbol-reading code. These `constants'
1926 unfortunately vary among coff implementations... */
1927 coff
->local_n_btmask
= N_BTMASK
;
1928 coff
->local_n_btshft
= N_BTSHFT
;
1929 coff
->local_n_tmask
= N_TMASK
;
1930 coff
->local_n_tshift
= N_TSHIFT
;
1931 coff
->local_symesz
= bfd_coff_symesz (abfd
);
1932 coff
->local_auxesz
= bfd_coff_auxesz (abfd
);
1933 coff
->local_linesz
= bfd_coff_linesz (abfd
);
1935 coff
->timestamp
= internal_f
->f_timdat
;
1937 obj_raw_syment_count (abfd
) =
1938 obj_conv_table_size (abfd
) =
1939 internal_f
->f_nsyms
;
1942 if ((internal_f
->f_flags
& F_SHROBJ
) != 0)
1943 abfd
->flags
|= DYNAMIC
;
1944 if (aouthdr
!= NULL
&& internal_f
->f_opthdr
>= bfd_coff_aoutsz (abfd
))
1946 struct internal_aouthdr
*internal_a
=
1947 (struct internal_aouthdr
*) aouthdr
;
1948 struct xcoff_tdata
*xcoff
;
1950 xcoff
= xcoff_data (abfd
);
1951 # ifdef U803XTOCMAGIC
1952 xcoff
->xcoff64
= internal_f
->f_magic
== U803XTOCMAGIC
;
1956 xcoff
->full_aouthdr
= TRUE
;
1957 xcoff
->toc
= internal_a
->o_toc
;
1958 xcoff
->sntoc
= internal_a
->o_sntoc
;
1959 xcoff
->snentry
= internal_a
->o_snentry
;
1960 bfd_xcoff_text_align_power (abfd
) = internal_a
->o_algntext
;
1961 bfd_xcoff_data_align_power (abfd
) = internal_a
->o_algndata
;
1962 xcoff
->modtype
= internal_a
->o_modtype
;
1963 xcoff
->cputype
= internal_a
->o_cputype
;
1964 xcoff
->maxdata
= internal_a
->o_maxdata
;
1965 xcoff
->maxstack
= internal_a
->o_maxstack
;
1970 /* Set the flags field from the COFF header read in. */
1971 if (! _bfd_coff_arm_set_private_flags (abfd
, internal_f
->f_flags
))
1976 /* FIXME: I'm not sure this is ever executed, since peicode.h
1977 defines coff_mkobject_hook. */
1978 if ((internal_f
->f_flags
& IMAGE_FILE_DEBUG_STRIPPED
) == 0)
1979 abfd
->flags
|= HAS_DEBUG
;
1986 /* Determine the machine architecture and type. FIXME: This is target
1987 dependent because the magic numbers are defined in the target
1988 dependent header files. But there is no particular need for this.
1989 If the magic numbers were moved to a separate file, this function
1990 would be target independent and would also be much more successful
1991 at linking together COFF files for different architectures. */
1994 coff_set_arch_mach_hook (bfd
*abfd
, void * filehdr
)
1996 unsigned long machine
;
1997 enum bfd_architecture arch
;
1998 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
2000 /* Zero selects the default machine for an arch. */
2002 switch (internal_f
->f_magic
)
2004 #ifdef OR32_MAGIC_BIG
2005 case OR32_MAGIC_BIG
:
2006 case OR32_MAGIC_LITTLE
:
2007 arch
= bfd_arch_or32
;
2012 arch
= bfd_arch_powerpc
;
2018 case I386AIXMAGIC
: /* Danbury PS/2 AIX C Compiler. */
2019 case LYNXCOFFMAGIC
: /* Shadows the m68k Lynx number below, sigh. */
2020 arch
= bfd_arch_i386
;
2025 arch
= bfd_arch_i386
;
2026 machine
= bfd_mach_x86_64
;
2031 arch
= bfd_arch_ia64
;
2038 arch
= bfd_arch_arm
;
2039 machine
= bfd_arm_get_mach_from_notes (abfd
, ARM_NOTE_SECTION
);
2040 if (machine
== bfd_mach_arm_unknown
)
2042 switch (internal_f
->f_flags
& F_ARM_ARCHITECTURE_MASK
)
2044 case F_ARM_2
: machine
= bfd_mach_arm_2
; break;
2045 case F_ARM_2a
: machine
= bfd_mach_arm_2a
; break;
2046 case F_ARM_3
: machine
= bfd_mach_arm_3
; break;
2048 case F_ARM_3M
: machine
= bfd_mach_arm_3M
; break;
2049 case F_ARM_4
: machine
= bfd_mach_arm_4
; break;
2050 case F_ARM_4T
: machine
= bfd_mach_arm_4T
; break;
2051 /* The COFF header does not have enough bits available
2052 to cover all the different ARM architectures. So
2053 we interpret F_ARM_5, the highest flag value to mean
2054 "the highest ARM architecture known to BFD" which is
2055 currently the XScale. */
2056 case F_ARM_5
: machine
= bfd_mach_arm_XScale
; break;
2064 #ifdef MC68KBCSMAGIC
2067 #ifdef APOLLOM68KMAGIC
2068 case APOLLOM68KMAGIC
:
2070 #ifdef LYNXCOFFMAGIC
2073 arch
= bfd_arch_m68k
;
2074 machine
= bfd_mach_m68020
;
2079 arch
= bfd_arch_maxq
;
2080 switch (internal_f
->f_flags
& F_MACHMASK
)
2083 machine
= bfd_mach_maxq10
;
2086 machine
= bfd_mach_maxq20
;
2097 arch
= bfd_arch_m88k
;
2103 arch
= bfd_arch_z80
;
2104 switch (internal_f
->f_flags
& F_MACHMASK
)
2107 case bfd_mach_z80strict
<< 12:
2108 case bfd_mach_z80
<< 12:
2109 case bfd_mach_z80full
<< 12:
2110 case bfd_mach_r800
<< 12:
2111 machine
= ((unsigned)internal_f
->f_flags
& F_MACHMASK
) >> 12;
2120 arch
= bfd_arch_z8k
;
2121 switch (internal_f
->f_flags
& F_MACHMASK
)
2124 machine
= bfd_mach_z8001
;
2127 machine
= bfd_mach_z8002
;
2136 arch
= bfd_arch_i860
;
2143 arch
= bfd_arch_i960
;
2144 switch (F_I960TYPE
& internal_f
->f_flags
)
2148 machine
= bfd_mach_i960_core
;
2151 machine
= bfd_mach_i960_kb_sb
;
2154 machine
= bfd_mach_i960_mc
;
2157 machine
= bfd_mach_i960_xa
;
2160 machine
= bfd_mach_i960_ca
;
2163 machine
= bfd_mach_i960_ka_sa
;
2166 machine
= bfd_mach_i960_jx
;
2169 machine
= bfd_mach_i960_hx
;
2188 if (xcoff_data (abfd
)->cputype
!= -1)
2189 cputype
= xcoff_data (abfd
)->cputype
& 0xff;
2192 /* We did not get a value from the a.out header. If the
2193 file has not been stripped, we may be able to get the
2194 architecture information from the first symbol, if it
2195 is a .file symbol. */
2196 if (obj_raw_syment_count (abfd
) == 0)
2201 struct internal_syment sym
;
2202 bfd_size_type amt
= bfd_coff_symesz (abfd
);
2204 buf
= bfd_malloc (amt
);
2205 if (bfd_seek (abfd
, obj_sym_filepos (abfd
), SEEK_SET
) != 0
2206 || bfd_bread (buf
, amt
, abfd
) != amt
)
2211 bfd_coff_swap_sym_in (abfd
, buf
, & sym
);
2212 if (sym
.n_sclass
== C_FILE
)
2213 cputype
= sym
.n_type
& 0xff;
2220 /* FIXME: We don't handle all cases here. */
2225 arch
= bfd_xcoff_architecture (abfd
);
2226 machine
= bfd_xcoff_machine (abfd
);
2230 arch
= bfd_arch_powerpc
;
2231 machine
= bfd_mach_ppc_601
;
2233 case 2: /* 64 bit PowerPC */
2234 arch
= bfd_arch_powerpc
;
2235 machine
= bfd_mach_ppc_620
;
2238 arch
= bfd_arch_powerpc
;
2239 machine
= bfd_mach_ppc
;
2242 arch
= bfd_arch_rs6000
;
2243 machine
= bfd_mach_rs6k
;
2252 arch
= bfd_arch_we32k
;
2258 arch
= bfd_arch_h8300
;
2259 machine
= bfd_mach_h8300
;
2260 /* !! FIXME this probably isn't the right place for this. */
2261 abfd
->flags
|= BFD_IS_RELAXABLE
;
2267 arch
= bfd_arch_h8300
;
2268 machine
= bfd_mach_h8300h
;
2269 /* !! FIXME this probably isn't the right place for this. */
2270 abfd
->flags
|= BFD_IS_RELAXABLE
;
2276 arch
= bfd_arch_h8300
;
2277 machine
= bfd_mach_h8300s
;
2278 /* !! FIXME this probably isn't the right place for this. */
2279 abfd
->flags
|= BFD_IS_RELAXABLE
;
2285 arch
= bfd_arch_h8300
;
2286 machine
= bfd_mach_h8300hn
;
2287 /* !! FIXME this probably isn't the right place for this. */
2288 abfd
->flags
|= BFD_IS_RELAXABLE
;
2294 arch
= bfd_arch_h8300
;
2295 machine
= bfd_mach_h8300sn
;
2296 /* !! FIXME this probably isn't the right place for this. */
2297 abfd
->flags
|= BFD_IS_RELAXABLE
;
2301 #ifdef SH_ARCH_MAGIC_BIG
2302 case SH_ARCH_MAGIC_BIG
:
2303 case SH_ARCH_MAGIC_LITTLE
:
2305 case SH_ARCH_MAGIC_WINCE
:
2311 #ifdef MIPS_ARCH_MAGIC_WINCE
2312 case MIPS_ARCH_MAGIC_WINCE
:
2313 arch
= bfd_arch_mips
;
2319 arch
= bfd_arch_h8500
;
2325 #ifdef LYNXCOFFMAGIC
2328 arch
= bfd_arch_sparc
;
2334 arch
= bfd_arch_tic30
;
2339 #ifdef TICOFF_TARGET_ARCH
2340 /* This TI COFF section should be used by all new TI COFF v0 targets. */
2342 arch
= TICOFF_TARGET_ARCH
;
2343 machine
= TICOFF_TARGET_MACHINE_GET (internal_f
->f_flags
);
2349 /* This TI COFF section should be used by all new TI COFF v1/2 targets. */
2350 /* TI COFF1 and COFF2 use the target_id field to specify which arch. */
2353 switch (internal_f
->f_target_id
)
2357 arch
= TICOFF_TARGET_ARCH
;
2358 machine
= TICOFF_TARGET_MACHINE_GET (internal_f
->f_flags
);
2362 arch
= bfd_arch_obscure
;
2363 (*_bfd_error_handler
)
2364 (_("Unrecognized TI COFF target id '0x%x'"),
2365 internal_f
->f_target_id
);
2371 #ifdef TIC80_ARCH_MAGIC
2372 case TIC80_ARCH_MAGIC
:
2373 arch
= bfd_arch_tic80
;
2379 arch
= bfd_arch_mcore
;
2385 arch
= bfd_arch_w65
;
2389 default: /* Unreadable input file type. */
2390 arch
= bfd_arch_obscure
;
2394 bfd_default_set_arch_mach (abfd
, arch
, machine
);
2398 #ifdef SYMNAME_IN_DEBUG
2401 symname_in_debug_hook (bfd
* abfd ATTRIBUTE_UNUSED
, struct internal_syment
*sym
)
2403 return SYMNAME_IN_DEBUG (sym
) != 0;
2408 #define symname_in_debug_hook \
2409 (bfd_boolean (*) (bfd *, struct internal_syment *)) bfd_false
2416 #define FORCE_SYMNAMES_IN_STRINGS
2419 /* Handle the csect auxent of a C_EXT or C_HIDEXT symbol. */
2422 coff_pointerize_aux_hook (bfd
*abfd ATTRIBUTE_UNUSED
,
2423 combined_entry_type
*table_base
,
2424 combined_entry_type
*symbol
,
2425 unsigned int indaux
,
2426 combined_entry_type
*aux
)
2428 int class = symbol
->u
.syment
.n_sclass
;
2430 if ((class == C_EXT
|| class == C_HIDEXT
)
2431 && indaux
+ 1 == symbol
->u
.syment
.n_numaux
)
2433 if (SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
) == XTY_LD
)
2435 aux
->u
.auxent
.x_csect
.x_scnlen
.p
=
2436 table_base
+ aux
->u
.auxent
.x_csect
.x_scnlen
.l
;
2437 aux
->fix_scnlen
= 1;
2440 /* Return TRUE to indicate that the caller should not do any
2441 further work on this auxent. */
2445 /* Return FALSE to indicate that this auxent should be handled by
2453 /* We don't want to pointerize bal entries. */
2456 coff_pointerize_aux_hook (bfd
*abfd ATTRIBUTE_UNUSED
,
2457 combined_entry_type
*table_base ATTRIBUTE_UNUSED
,
2458 combined_entry_type
*symbol
,
2459 unsigned int indaux
,
2460 combined_entry_type
*aux ATTRIBUTE_UNUSED
)
2462 /* Return TRUE if we don't want to pointerize this aux entry, which
2463 is the case for the lastfirst aux entry for a C_LEAFPROC symbol. */
2465 && (symbol
->u
.syment
.n_sclass
== C_LEAFPROC
2466 || symbol
->u
.syment
.n_sclass
== C_LEAFSTAT
2467 || symbol
->u
.syment
.n_sclass
== C_LEAFEXT
));
2472 #define coff_pointerize_aux_hook 0
2475 #endif /* ! RS6000COFF_C */
2477 /* Print an aux entry. This returns TRUE if it has printed it. */
2480 coff_print_aux (bfd
*abfd ATTRIBUTE_UNUSED
,
2481 FILE *file ATTRIBUTE_UNUSED
,
2482 combined_entry_type
*table_base ATTRIBUTE_UNUSED
,
2483 combined_entry_type
*symbol ATTRIBUTE_UNUSED
,
2484 combined_entry_type
*aux ATTRIBUTE_UNUSED
,
2485 unsigned int indaux ATTRIBUTE_UNUSED
)
2488 if ((symbol
->u
.syment
.n_sclass
== C_EXT
2489 || symbol
->u
.syment
.n_sclass
== C_HIDEXT
)
2490 && indaux
+ 1 == symbol
->u
.syment
.n_numaux
)
2492 /* This is a csect entry. */
2493 fprintf (file
, "AUX ");
2494 if (SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
) != XTY_LD
)
2496 BFD_ASSERT (! aux
->fix_scnlen
);
2498 fprintf (file
, "val %5lld",
2499 (long long) aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2501 fprintf (file
, "val %5ld", (long) aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2506 fprintf (file
, "indx ");
2507 if (! aux
->fix_scnlen
)
2509 fprintf (file
, "%4lld",
2510 (long long) aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2512 fprintf (file
, "%4ld", (long) aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2515 fprintf (file
, "%4ld",
2516 (long) (aux
->u
.auxent
.x_csect
.x_scnlen
.p
- table_base
));
2519 " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u",
2520 aux
->u
.auxent
.x_csect
.x_parmhash
,
2521 (unsigned int) aux
->u
.auxent
.x_csect
.x_snhash
,
2522 SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
),
2523 SMTYP_ALIGN (aux
->u
.auxent
.x_csect
.x_smtyp
),
2524 (unsigned int) aux
->u
.auxent
.x_csect
.x_smclas
,
2525 aux
->u
.auxent
.x_csect
.x_stab
,
2526 (unsigned int) aux
->u
.auxent
.x_csect
.x_snstab
);
2531 /* Return FALSE to indicate that no special action was taken. */
2539 To write relocations, the back end steps though the
2540 canonical relocation table and create an
2541 @code{internal_reloc}. The symbol index to use is removed from
2542 the @code{offset} field in the symbol table supplied. The
2543 address comes directly from the sum of the section base
2544 address and the relocation offset; the type is dug directly
2545 from the howto field. Then the @code{internal_reloc} is
2546 swapped into the shape of an @code{external_reloc} and written
2554 /* AUX's ld wants relocations to be sorted. */
2556 compare_arelent_ptr (const void * x
, const void * y
)
2558 const arelent
**a
= (const arelent
**) x
;
2559 const arelent
**b
= (const arelent
**) y
;
2560 bfd_size_type aadr
= (*a
)->address
;
2561 bfd_size_type badr
= (*b
)->address
;
2563 return (aadr
< badr
? -1 : badr
< aadr
? 1 : 0);
2566 #endif /* TARG_AUX */
2569 coff_write_relocs (bfd
* abfd
, int first_undef
)
2573 for (s
= abfd
->sections
; s
!= NULL
; s
= s
->next
)
2576 struct external_reloc dst
;
2583 /* Sort relocations before we write them out. */
2586 amt
= s
->reloc_count
;
2587 amt
*= sizeof (arelent
*);
2588 p
= bfd_malloc (amt
);
2589 if (p
== NULL
&& s
->reloc_count
> 0)
2591 memcpy (p
, s
->orelocation
, (size_t) amt
);
2592 qsort (p
, s
->reloc_count
, sizeof (arelent
*), compare_arelent_ptr
);
2596 if (bfd_seek (abfd
, s
->rel_filepos
, SEEK_SET
) != 0)
2600 if (obj_pe (abfd
) && s
->reloc_count
>= 0xffff)
2602 /* Encode real count here as first reloc. */
2603 struct internal_reloc n
;
2605 memset (& n
, 0, sizeof (n
));
2606 /* Add one to count *this* reloc (grr). */
2607 n
.r_vaddr
= s
->reloc_count
+ 1;
2608 coff_swap_reloc_out (abfd
, &n
, &dst
);
2609 if (bfd_bwrite (& dst
, (bfd_size_type
) bfd_coff_relsz (abfd
),
2610 abfd
) != bfd_coff_relsz (abfd
))
2615 for (i
= 0; i
< s
->reloc_count
; i
++)
2617 struct internal_reloc n
;
2620 memset (& n
, 0, sizeof (n
));
2622 /* Now we've renumbered the symbols we know where the
2623 undefined symbols live in the table. Check the reloc
2624 entries for symbols who's output bfd isn't the right one.
2625 This is because the symbol was undefined (which means
2626 that all the pointers are never made to point to the same
2627 place). This is a bad thing,'cause the symbols attached
2628 to the output bfd are indexed, so that the relocation
2629 entries know which symbol index they point to. So we
2630 have to look up the output symbol here. */
2632 if (q
->sym_ptr_ptr
[0]->the_bfd
!= abfd
)
2635 const char *sname
= q
->sym_ptr_ptr
[0]->name
;
2636 asymbol
**outsyms
= abfd
->outsymbols
;
2638 for (j
= first_undef
; outsyms
[j
]; j
++)
2640 const char *intable
= outsyms
[j
]->name
;
2642 if (strcmp (intable
, sname
) == 0)
2644 /* Got a hit, so repoint the reloc. */
2645 q
->sym_ptr_ptr
= outsyms
+ j
;
2651 n
.r_vaddr
= q
->address
+ s
->vma
;
2654 /* The 29k const/consth reloc pair is a real kludge. The consth
2655 part doesn't have a symbol; it has an offset. So rebuilt
2657 if (q
->howto
->type
== R_IHCONST
)
2658 n
.r_symndx
= q
->addend
;
2663 #ifdef SECTION_RELATIVE_ABSOLUTE_SYMBOL_P
2664 if (SECTION_RELATIVE_ABSOLUTE_SYMBOL_P (q
, s
))
2666 if ((*q
->sym_ptr_ptr
)->section
== bfd_abs_section_ptr
2667 && ((*q
->sym_ptr_ptr
)->flags
& BSF_SECTION_SYM
) != 0)
2669 /* This is a relocation relative to the absolute symbol. */
2673 n
.r_symndx
= get_index ((*(q
->sym_ptr_ptr
)));
2674 /* Check to see if the symbol reloc points to a symbol
2675 we don't have in our symbol table. */
2676 if (n
.r_symndx
> obj_conv_table_size (abfd
))
2678 bfd_set_error (bfd_error_bad_value
);
2679 _bfd_error_handler (_("%B: reloc against a non-existant symbol index: %ld"),
2686 #ifdef SWAP_OUT_RELOC_OFFSET
2687 n
.r_offset
= q
->addend
;
2691 /* Work out reloc type from what is required. */
2692 SELECT_RELOC (n
, q
->howto
);
2694 n
.r_type
= q
->howto
->type
;
2696 coff_swap_reloc_out (abfd
, &n
, &dst
);
2698 if (bfd_bwrite (& dst
, (bfd_size_type
) bfd_coff_relsz (abfd
),
2699 abfd
) != bfd_coff_relsz (abfd
))
2712 /* Set flags and magic number of a coff file from architecture and machine
2713 type. Result is TRUE if we can represent the arch&type, FALSE if not. */
2716 coff_set_flags (bfd
* abfd
,
2717 unsigned int *magicp ATTRIBUTE_UNUSED
,
2718 unsigned short *flagsp ATTRIBUTE_UNUSED
)
2720 switch (bfd_get_arch (abfd
))
2725 switch (bfd_get_mach (abfd
))
2728 case bfd_mach_z80strict
:
2730 case bfd_mach_z80full
:
2732 *flagsp
= bfd_get_mach (abfd
) << 12;
2744 switch (bfd_get_mach (abfd
))
2746 case bfd_mach_z8001
: *flagsp
= F_Z8001
; break;
2747 case bfd_mach_z8002
: *flagsp
= F_Z8002
; break;
2748 default: return FALSE
;
2759 *magicp
= I960ROMAGIC
;
2761 switch (bfd_get_mach (abfd
))
2763 case bfd_mach_i960_core
: flags
= F_I960CORE
; break;
2764 case bfd_mach_i960_kb_sb
: flags
= F_I960KB
; break;
2765 case bfd_mach_i960_mc
: flags
= F_I960MC
; break;
2766 case bfd_mach_i960_xa
: flags
= F_I960XA
; break;
2767 case bfd_mach_i960_ca
: flags
= F_I960CA
; break;
2768 case bfd_mach_i960_ka_sa
: flags
= F_I960KA
; break;
2769 case bfd_mach_i960_jx
: flags
= F_I960JX
; break;
2770 case bfd_mach_i960_hx
: flags
= F_I960HX
; break;
2771 default: return FALSE
;
2780 case bfd_arch_tic30
:
2781 *magicp
= TIC30MAGIC
;
2785 #ifdef TICOFF_DEFAULT_MAGIC
2786 case TICOFF_TARGET_ARCH
:
2787 /* If there's no indication of which version we want, use the default. */
2789 *magicp
= TICOFF_DEFAULT_MAGIC
;
2792 /* We may want to output in a different COFF version. */
2793 switch (abfd
->xvec
->name
[4])
2796 *magicp
= TICOFF0MAGIC
;
2799 *magicp
= TICOFF1MAGIC
;
2802 *magicp
= TICOFF2MAGIC
;
2808 TICOFF_TARGET_MACHINE_SET (flagsp
, bfd_get_mach (abfd
));
2812 #ifdef TIC80_ARCH_MAGIC
2813 case bfd_arch_tic80
:
2814 *magicp
= TIC80_ARCH_MAGIC
;
2821 * magicp
= ARMPEMAGIC
;
2823 * magicp
= ARMMAGIC
;
2826 if (APCS_SET (abfd
))
2828 if (APCS_26_FLAG (abfd
))
2829 * flagsp
|= F_APCS26
;
2831 if (APCS_FLOAT_FLAG (abfd
))
2832 * flagsp
|= F_APCS_FLOAT
;
2834 if (PIC_FLAG (abfd
))
2837 if (INTERWORK_SET (abfd
) && INTERWORK_FLAG (abfd
))
2838 * flagsp
|= F_INTERWORK
;
2839 switch (bfd_get_mach (abfd
))
2841 case bfd_mach_arm_2
: * flagsp
|= F_ARM_2
; break;
2842 case bfd_mach_arm_2a
: * flagsp
|= F_ARM_2a
; break;
2843 case bfd_mach_arm_3
: * flagsp
|= F_ARM_3
; break;
2844 case bfd_mach_arm_3M
: * flagsp
|= F_ARM_3M
; break;
2845 case bfd_mach_arm_4
: * flagsp
|= F_ARM_4
; break;
2846 case bfd_mach_arm_4T
: * flagsp
|= F_ARM_4T
; break;
2847 case bfd_mach_arm_5
: * flagsp
|= F_ARM_5
; break;
2848 /* FIXME: we do not have F_ARM vaues greater than F_ARM_5.
2849 See also the comment in coff_set_arch_mach_hook(). */
2850 case bfd_mach_arm_5T
: * flagsp
|= F_ARM_5
; break;
2851 case bfd_mach_arm_5TE
: * flagsp
|= F_ARM_5
; break;
2852 case bfd_mach_arm_XScale
: * flagsp
|= F_ARM_5
; break;
2858 case bfd_arch_powerpc
:
2863 #if defined(I386MAGIC) || defined(AMD64MAGIC)
2865 #if defined(I386MAGIC)
2866 *magicp
= I386MAGIC
;
2869 /* Just overwrite the usual value if we're doing Lynx. */
2870 *magicp
= LYNXCOFFMAGIC
;
2872 #if defined AMD64MAGIC
2873 *magicp
= AMD64MAGIC
;
2880 *magicp
= I860MAGIC
;
2886 *magicp
= IA64MAGIC
;
2892 #ifdef APOLLOM68KMAGIC
2893 *magicp
= APOLLO_COFF_VERSION_NUMBER
;
2895 /* NAMES_HAVE_UNDERSCORE may be defined by coff-u68k.c. */
2896 #ifdef NAMES_HAVE_UNDERSCORE
2897 *magicp
= MC68KBCSMAGIC
;
2899 *magicp
= MC68MAGIC
;
2903 /* Just overwrite the usual value if we're doing Lynx. */
2904 *magicp
= LYNXCOFFMAGIC
;
2911 *magicp
= MC88OMAGIC
;
2916 case bfd_arch_h8300
:
2917 switch (bfd_get_mach (abfd
))
2919 case bfd_mach_h8300
: *magicp
= H8300MAGIC
; return TRUE
;
2920 case bfd_mach_h8300h
: *magicp
= H8300HMAGIC
; return TRUE
;
2921 case bfd_mach_h8300s
: *magicp
= H8300SMAGIC
; return TRUE
;
2922 case bfd_mach_h8300hn
: *magicp
= H8300HNMAGIC
; return TRUE
;
2923 case bfd_mach_h8300sn
: *magicp
= H8300SNMAGIC
; return TRUE
;
2929 #ifdef SH_ARCH_MAGIC_BIG
2931 #ifdef COFF_IMAGE_WITH_PE
2932 *magicp
= SH_ARCH_MAGIC_WINCE
;
2934 if (bfd_big_endian (abfd
))
2935 *magicp
= SH_ARCH_MAGIC_BIG
;
2937 *magicp
= SH_ARCH_MAGIC_LITTLE
;
2942 #ifdef MIPS_ARCH_MAGIC_WINCE
2944 *magicp
= MIPS_ARCH_MAGIC_WINCE
;
2949 case bfd_arch_sparc
:
2950 *magicp
= SPARCMAGIC
;
2952 /* Just overwrite the usual value if we're doing Lynx. */
2953 *magicp
= LYNXCOFFMAGIC
;
2959 case bfd_arch_h8500
:
2960 *magicp
= H8500MAGIC
;
2966 case bfd_arch_we32k
:
2967 *magicp
= WE32KMAGIC
;
2972 case bfd_arch_rs6000
:
2974 case bfd_arch_powerpc
:
2976 BFD_ASSERT (bfd_get_flavour (abfd
) == bfd_target_xcoff_flavour
);
2977 *magicp
= bfd_xcoff_magic_number (abfd
);
2982 case bfd_arch_mcore
:
2983 * magicp
= MCOREMAGIC
;
2993 #ifdef OR32_MAGIC_BIG
2995 if (bfd_big_endian (abfd
))
2996 * magicp
= OR32_MAGIC_BIG
;
2998 * magicp
= OR32_MAGIC_LITTLE
;
3004 * magicp
= MAXQ20MAGIC
;
3005 switch (bfd_get_mach (abfd
))
3007 case bfd_mach_maxq10
: * flagsp
= F_MAXQ10
; return TRUE
;
3008 case bfd_mach_maxq20
: * flagsp
= F_MAXQ20
; return TRUE
;
3009 default: return FALSE
;
3013 default: /* Unknown architecture. */
3014 /* Fall through to "return FALSE" below, to avoid
3015 "statement never reached" errors on the one below. */
3023 coff_set_arch_mach (bfd
* abfd
,
3024 enum bfd_architecture arch
,
3025 unsigned long machine
)
3028 unsigned short dummy2
;
3030 if (! bfd_default_set_arch_mach (abfd
, arch
, machine
))
3033 if (arch
!= bfd_arch_unknown
3034 && ! coff_set_flags (abfd
, &dummy1
, &dummy2
))
3035 return FALSE
; /* We can't represent this type. */
3037 return TRUE
; /* We're easy... */
3040 #ifdef COFF_IMAGE_WITH_PE
3042 /* This is used to sort sections by VMA, as required by PE image
3046 sort_by_secaddr (const void * arg1
, const void * arg2
)
3048 const asection
*a
= *(const asection
**) arg1
;
3049 const asection
*b
= *(const asection
**) arg2
;
3051 if (a
->vma
< b
->vma
)
3053 else if (a
->vma
> b
->vma
)
3059 #endif /* COFF_IMAGE_WITH_PE */
3061 /* Calculate the file position for each section. */
3064 #define ALIGN_SECTIONS_IN_FILE
3066 #if defined(TIC80COFF) || defined(TICOFF)
3067 #undef ALIGN_SECTIONS_IN_FILE
3071 coff_compute_section_file_positions (bfd
* abfd
)
3074 asection
*previous
= NULL
;
3075 file_ptr sofar
= bfd_coff_filhsz (abfd
);
3076 bfd_boolean align_adjust
;
3077 #ifdef ALIGN_SECTIONS_IN_FILE
3082 /* On XCOFF, if we have symbols, set up the .debug section. */
3083 if (bfd_get_symcount (abfd
) > 0)
3086 bfd_size_type i
, symcount
;
3090 symcount
= bfd_get_symcount (abfd
);
3091 for (symp
= abfd
->outsymbols
, i
= 0; i
< symcount
; symp
++, i
++)
3093 coff_symbol_type
*cf
;
3095 cf
= coff_symbol_from (abfd
, *symp
);
3097 && cf
->native
!= NULL
3098 && SYMNAME_IN_DEBUG (&cf
->native
->u
.syment
))
3102 len
= strlen (bfd_asymbol_name (*symp
));
3103 if (len
> SYMNMLEN
|| bfd_coff_force_symnames_in_strings (abfd
))
3104 sz
+= len
+ 1 + bfd_coff_debug_string_prefix_length (abfd
);
3111 dsec
= bfd_make_section_old_way (abfd
, DOT_DEBUG
);
3115 dsec
->flags
|= SEC_HAS_CONTENTS
;
3120 #ifdef COFF_IMAGE_WITH_PE
3123 if (coff_data (abfd
)->link_info
)
3125 page_size
= pe_data (abfd
)->pe_opthdr
.FileAlignment
;
3127 /* If no file alignment has been set, default to one.
3128 This repairs 'ld -r' for arm-wince-pe target. */
3133 page_size
= PE_DEF_FILE_ALIGNMENT
;
3135 #ifdef COFF_PAGE_SIZE
3136 int page_size
= COFF_PAGE_SIZE
;
3140 if (bfd_get_start_address (abfd
))
3141 /* A start address may have been added to the original file. In this
3142 case it will need an optional header to record it. */
3143 abfd
->flags
|= EXEC_P
;
3145 if (abfd
->flags
& EXEC_P
)
3146 sofar
+= bfd_coff_aoutsz (abfd
);
3148 else if (xcoff_data (abfd
)->full_aouthdr
)
3149 sofar
+= bfd_coff_aoutsz (abfd
);
3151 sofar
+= SMALL_AOUTSZ
;
3154 sofar
+= abfd
->section_count
* bfd_coff_scnhsz (abfd
);
3157 /* XCOFF handles overflows in the reloc and line number count fields
3158 by allocating a new section header to hold the correct counts. */
3159 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3160 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3161 sofar
+= bfd_coff_scnhsz (abfd
);
3164 #ifdef COFF_IMAGE_WITH_PE
3166 /* PE requires the sections to be in memory order when listed in
3167 the section headers. It also does not like empty loadable
3168 sections. The sections apparently do not have to be in the
3169 right order in the image file itself, but we do need to get the
3170 target_index values right. */
3173 asection
**section_list
;
3179 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3182 /* We allocate an extra cell to simplify the final loop. */
3183 amt
= sizeof (struct asection
*) * (count
+ 1);
3184 section_list
= bfd_malloc (amt
);
3185 if (section_list
== NULL
)
3189 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3191 section_list
[i
] = current
;
3194 section_list
[i
] = NULL
;
3196 qsort (section_list
, count
, sizeof (asection
*), sort_by_secaddr
);
3198 /* Rethread the linked list into sorted order; at the same time,
3199 assign target_index values. */
3201 abfd
->sections
= NULL
;
3202 abfd
->section_last
= NULL
;
3203 for (i
= 0; i
< count
; i
++)
3205 current
= section_list
[i
];
3206 bfd_section_list_append (abfd
, current
);
3208 /* Later, if the section has zero size, we'll be throwing it
3209 away, so we don't want to number it now. Note that having
3210 a zero size and having real contents are different
3211 concepts: .bss has no contents, but (usually) non-zero
3213 if (current
->size
== 0)
3215 /* Discard. However, it still might have (valid) symbols
3216 in it, so arbitrarily set it to section 1 (indexing is
3217 1-based here; usually .text). __end__ and other
3218 contents of .endsection really have this happen.
3219 FIXME: This seems somewhat dubious. */
3220 current
->target_index
= 1;
3223 current
->target_index
= target_index
++;
3226 free (section_list
);
3228 #else /* ! COFF_IMAGE_WITH_PE */
3230 /* Set the target_index field. */
3234 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3235 current
->target_index
= target_index
++;
3237 #endif /* ! COFF_IMAGE_WITH_PE */
3239 align_adjust
= FALSE
;
3240 for (current
= abfd
->sections
;
3242 current
= current
->next
)
3244 #ifdef COFF_IMAGE_WITH_PE
3245 /* With PE we have to pad each section to be a multiple of its
3246 page size too, and remember both sizes. */
3247 if (coff_section_data (abfd
, current
) == NULL
)
3249 bfd_size_type amt
= sizeof (struct coff_section_tdata
);
3251 current
->used_by_bfd
= bfd_zalloc (abfd
, amt
);
3252 if (current
->used_by_bfd
== NULL
)
3255 if (pei_section_data (abfd
, current
) == NULL
)
3257 bfd_size_type amt
= sizeof (struct pei_section_tdata
);
3259 coff_section_data (abfd
, current
)->tdata
= bfd_zalloc (abfd
, amt
);
3260 if (coff_section_data (abfd
, current
)->tdata
== NULL
)
3263 if (pei_section_data (abfd
, current
)->virt_size
== 0)
3264 pei_section_data (abfd
, current
)->virt_size
= current
->size
;
3267 /* Only deal with sections which have contents. */
3268 if (!(current
->flags
& SEC_HAS_CONTENTS
))
3271 #ifdef COFF_IMAGE_WITH_PE
3272 /* Make sure we skip empty sections in a PE image. */
3273 if (current
->size
== 0)
3277 /* Align the sections in the file to the same boundary on
3278 which they are aligned in virtual memory. I960 doesn't
3279 do this (FIXME) so we can stay in sync with Intel. 960
3280 doesn't yet page from files... */
3281 #ifdef ALIGN_SECTIONS_IN_FILE
3282 if ((abfd
->flags
& EXEC_P
) != 0)
3284 /* Make sure this section is aligned on the right boundary - by
3285 padding the previous section up if necessary. */
3289 /* AIX loader checks the text section alignment of (vma - filepos)
3290 So even though the filepos may be aligned wrt the o_algntext, for
3291 AIX executables, this check fails. This shows up when a native
3292 AIX executable is stripped with gnu strip because the default vma
3293 of native is 0x10000150 but default for gnu is 0x10000140. Gnu
3294 stripped gnu excutable passes this check because the filepos is
3295 0x0140. This problem also show up with 64 bit shared objects. The
3296 data section must also be aligned. */
3297 if (!strcmp (current
->name
, _TEXT
)
3298 || !strcmp (current
->name
, _DATA
))
3303 sofar
= BFD_ALIGN (sofar
, 1 << current
->alignment_power
);
3305 align
= 1 << current
->alignment_power
;
3306 pad
= abs (current
->vma
- sofar
) % align
;
3317 sofar
= BFD_ALIGN (sofar
, 1 << current
->alignment_power
);
3320 if (previous
!= NULL
)
3321 previous
->size
+= sofar
- old_sofar
;
3326 /* In demand paged files the low order bits of the file offset
3327 must match the low order bits of the virtual address. */
3328 #ifdef COFF_PAGE_SIZE
3329 if ((abfd
->flags
& D_PAGED
) != 0
3330 && (current
->flags
& SEC_ALLOC
) != 0)
3331 sofar
+= (current
->vma
- (bfd_vma
) sofar
) % page_size
;
3333 current
->filepos
= sofar
;
3335 #ifdef COFF_IMAGE_WITH_PE
3336 /* Set the padded size. */
3337 current
->size
= (current
->size
+ page_size
-1) & -page_size
;
3340 sofar
+= current
->size
;
3342 #ifdef ALIGN_SECTIONS_IN_FILE
3343 /* Make sure that this section is of the right size too. */
3344 if ((abfd
->flags
& EXEC_P
) == 0)
3346 bfd_size_type old_size
;
3348 old_size
= current
->size
;
3349 current
->size
= BFD_ALIGN (current
->size
,
3350 1 << current
->alignment_power
);
3351 align_adjust
= current
->size
!= old_size
;
3352 sofar
+= current
->size
- old_size
;
3357 sofar
= BFD_ALIGN (sofar
, 1 << current
->alignment_power
);
3358 align_adjust
= sofar
!= old_sofar
;
3359 current
->size
+= sofar
- old_sofar
;
3363 #ifdef COFF_IMAGE_WITH_PE
3364 /* For PE we need to make sure we pad out to the aligned
3365 size, in case the caller only writes out data to the
3367 if (pei_section_data (abfd
, current
)->virt_size
< current
->size
)
3368 align_adjust
= TRUE
;
3372 /* Force .lib sections to start at zero. The vma is then
3373 incremented in coff_set_section_contents. This is right for
3375 if (strcmp (current
->name
, _LIB
) == 0)
3376 bfd_set_section_vma (abfd
, current
, 0);
3382 /* It is now safe to write to the output file. If we needed an
3383 alignment adjustment for the last section, then make sure that
3384 there is a byte at offset sofar. If there are no symbols and no
3385 relocs, then nothing follows the last section. If we don't force
3386 the last byte out, then the file may appear to be truncated. */
3392 if (bfd_seek (abfd
, sofar
- 1, SEEK_SET
) != 0
3393 || bfd_bwrite (&b
, (bfd_size_type
) 1, abfd
) != 1)
3397 /* Make sure the relocations are aligned. We don't need to make
3398 sure that this byte exists, because it will only matter if there
3399 really are relocs. */
3400 sofar
= BFD_ALIGN (sofar
, 1 << COFF_DEFAULT_SECTION_ALIGNMENT_POWER
);
3402 obj_relocbase (abfd
) = sofar
;
3403 abfd
->output_has_begun
= TRUE
;
3408 #ifdef COFF_IMAGE_WITH_PE
3410 static unsigned int pelength
;
3411 static unsigned int peheader
;
3414 coff_read_word (bfd
*abfd
, unsigned int *value
)
3419 status
= bfd_bread (b
, (bfd_size_type
) 2, abfd
);
3427 *value
= (unsigned int) b
[0];
3429 *value
= (unsigned int) (b
[0] + (b
[1] << 8));
3431 pelength
+= (unsigned int) status
;
3437 coff_compute_checksum (bfd
*abfd
)
3439 bfd_boolean more_data
;
3446 filepos
= (file_ptr
) 0;
3450 if (bfd_seek (abfd
, filepos
, SEEK_SET
) != 0)
3453 more_data
= coff_read_word (abfd
, &value
);
3455 total
= 0xffff & (total
+ (total
>> 0x10));
3460 return (0xffff & (total
+ (total
>> 0x10)));
3464 coff_apply_checksum (bfd
*abfd
)
3466 unsigned int computed
;
3467 unsigned int checksum
= 0;
3469 if (bfd_seek (abfd
, 0x3c, SEEK_SET
) != 0)
3472 if (!coff_read_word (abfd
, &peheader
))
3475 if (bfd_seek (abfd
, peheader
+ 0x58, SEEK_SET
) != 0)
3479 bfd_bwrite (&checksum
, (bfd_size_type
) 4, abfd
);
3481 if (bfd_seek (abfd
, peheader
, SEEK_SET
) != 0)
3484 computed
= coff_compute_checksum (abfd
);
3486 checksum
= computed
+ pelength
;
3488 if (bfd_seek (abfd
, peheader
+ 0x58, SEEK_SET
) != 0)
3491 bfd_bwrite (&checksum
, (bfd_size_type
) 4, abfd
);
3496 #endif /* COFF_IMAGE_WITH_PE */
3499 coff_write_object_contents (bfd
* abfd
)
3502 bfd_boolean hasrelocs
= FALSE
;
3503 bfd_boolean haslinno
= FALSE
;
3504 bfd_boolean hasdebug
= FALSE
;
3506 file_ptr reloc_base
;
3507 file_ptr lineno_base
;
3509 unsigned long reloc_size
= 0, reloc_count
= 0;
3510 unsigned long lnno_size
= 0;
3511 bfd_boolean long_section_names
;
3512 asection
*text_sec
= NULL
;
3513 asection
*data_sec
= NULL
;
3514 asection
*bss_sec
= NULL
;
3515 struct internal_filehdr internal_f
;
3516 struct internal_aouthdr internal_a
;
3517 #ifdef COFF_LONG_SECTION_NAMES
3518 size_t string_size
= STRING_SIZE_SIZE
;
3521 bfd_set_error (bfd_error_system_call
);
3523 /* Make a pass through the symbol table to count line number entries and
3524 put them into the correct asections. */
3525 lnno_size
= coff_count_linenumbers (abfd
) * bfd_coff_linesz (abfd
);
3527 if (! abfd
->output_has_begun
)
3529 if (! coff_compute_section_file_positions (abfd
))
3533 reloc_base
= obj_relocbase (abfd
);
3535 /* Work out the size of the reloc and linno areas. */
3537 for (current
= abfd
->sections
; current
!= NULL
; current
=
3541 /* We store the actual reloc count in the first reloc's addr. */
3542 if (obj_pe (abfd
) && current
->reloc_count
>= 0xffff)
3545 reloc_count
+= current
->reloc_count
;
3548 reloc_size
= reloc_count
* bfd_coff_relsz (abfd
);
3550 lineno_base
= reloc_base
+ reloc_size
;
3551 sym_base
= lineno_base
+ lnno_size
;
3553 /* Indicate in each section->line_filepos its actual file address. */
3554 for (current
= abfd
->sections
; current
!= NULL
; current
=
3557 if (current
->lineno_count
)
3559 current
->line_filepos
= lineno_base
;
3560 current
->moving_line_filepos
= lineno_base
;
3561 lineno_base
+= current
->lineno_count
* bfd_coff_linesz (abfd
);
3564 current
->line_filepos
= 0;
3566 if (current
->reloc_count
)
3568 current
->rel_filepos
= reloc_base
;
3569 reloc_base
+= current
->reloc_count
* bfd_coff_relsz (abfd
);
3571 /* Extra reloc to hold real count. */
3572 if (obj_pe (abfd
) && current
->reloc_count
>= 0xffff)
3573 reloc_base
+= bfd_coff_relsz (abfd
);
3577 current
->rel_filepos
= 0;
3580 /* Write section headers to the file. */
3581 internal_f
.f_nscns
= 0;
3583 if ((abfd
->flags
& EXEC_P
) != 0)
3584 scn_base
= bfd_coff_filhsz (abfd
) + bfd_coff_aoutsz (abfd
);
3587 scn_base
= bfd_coff_filhsz (abfd
);
3590 if (xcoff_data (abfd
)->full_aouthdr
)
3591 scn_base
+= bfd_coff_aoutsz (abfd
);
3593 scn_base
+= SMALL_AOUTSZ
;
3598 if (bfd_seek (abfd
, scn_base
, SEEK_SET
) != 0)
3601 long_section_names
= FALSE
;
3602 for (current
= abfd
->sections
;
3604 current
= current
->next
)
3606 struct internal_scnhdr section
;
3607 bfd_boolean is_reloc_section
= FALSE
;
3609 #ifdef COFF_IMAGE_WITH_PE
3610 if (strcmp (current
->name
, ".reloc") == 0)
3612 is_reloc_section
= TRUE
;
3614 pe_data (abfd
)->has_reloc_section
= 1;
3618 internal_f
.f_nscns
++;
3620 strncpy (section
.s_name
, current
->name
, SCNNMLEN
);
3622 #ifdef COFF_LONG_SECTION_NAMES
3623 /* Handle long section names as in PE. This must be compatible
3624 with the code in coff_write_symbols and _bfd_coff_final_link. */
3625 if (bfd_coff_long_section_names (abfd
))
3629 len
= strlen (current
->name
);
3632 memset (section
.s_name
, 0, SCNNMLEN
);
3633 sprintf (section
.s_name
, "/%lu", (unsigned long) string_size
);
3634 string_size
+= len
+ 1;
3635 long_section_names
= TRUE
;
3641 /* Always set s_vaddr of .lib to 0. This is right for SVR3.2
3642 Ian Taylor <ian@cygnus.com>. */
3643 if (strcmp (current
->name
, _LIB
) == 0)
3644 section
.s_vaddr
= 0;
3647 section
.s_vaddr
= current
->vma
;
3648 section
.s_paddr
= current
->lma
;
3649 section
.s_size
= current
->size
;
3650 #ifdef coff_get_section_load_page
3651 section
.s_page
= coff_get_section_load_page (current
);
3657 section
.s_paddr
= 0;
3659 #ifdef COFF_IMAGE_WITH_PE
3660 /* Reminder: s_paddr holds the virtual size of the section. */
3661 if (coff_section_data (abfd
, current
) != NULL
3662 && pei_section_data (abfd
, current
) != NULL
)
3663 section
.s_paddr
= pei_section_data (abfd
, current
)->virt_size
;
3665 section
.s_paddr
= 0;
3668 /* If this section has no size or is unloadable then the scnptr
3670 if (current
->size
== 0
3671 || (current
->flags
& (SEC_LOAD
| SEC_HAS_CONTENTS
)) == 0)
3672 section
.s_scnptr
= 0;
3674 section
.s_scnptr
= current
->filepos
;
3676 section
.s_relptr
= current
->rel_filepos
;
3677 section
.s_lnnoptr
= current
->line_filepos
;
3678 section
.s_nreloc
= current
->reloc_count
;
3679 section
.s_nlnno
= current
->lineno_count
;
3680 #ifndef COFF_IMAGE_WITH_PE
3681 /* In PEI, relocs come in the .reloc section. */
3682 if (current
->reloc_count
!= 0)
3685 if (current
->lineno_count
!= 0)
3687 if ((current
->flags
& SEC_DEBUGGING
) != 0
3688 && ! is_reloc_section
)
3693 /* Indicate the use of an XCOFF overflow section header. */
3694 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3696 section
.s_nreloc
= 0xffff;
3697 section
.s_nlnno
= 0xffff;
3702 section
.s_flags
= sec_to_styp_flags (current
->name
, current
->flags
);
3704 if (!strcmp (current
->name
, _TEXT
))
3706 else if (!strcmp (current
->name
, _DATA
))
3708 else if (!strcmp (current
->name
, _BSS
))
3712 section
.s_align
= (current
->alignment_power
3713 ? 1 << current
->alignment_power
3717 /* TI COFF puts the alignment power in bits 8-11 of the flags. */
3718 section
.s_flags
|= (current
->alignment_power
& 0xF) << 8;
3720 #ifdef COFF_ENCODE_ALIGNMENT
3721 COFF_ENCODE_ALIGNMENT(section
, current
->alignment_power
);
3724 #ifdef COFF_IMAGE_WITH_PE
3725 /* Suppress output of the sections if they are null. ld
3726 includes the bss and data sections even if there is no size
3727 assigned to them. NT loader doesn't like it if these section
3728 headers are included if the sections themselves are not
3729 needed. See also coff_compute_section_file_positions. */
3730 if (section
.s_size
== 0)
3731 internal_f
.f_nscns
--;
3736 bfd_size_type amt
= bfd_coff_scnhsz (abfd
);
3738 if (coff_swap_scnhdr_out (abfd
, §ion
, &buff
) == 0
3739 || bfd_bwrite (& buff
, amt
, abfd
) != amt
)
3744 /* PE stores COMDAT section information in the symbol table. If
3745 this section is supposed to have some COMDAT info, track down
3746 the symbol in the symbol table and modify it. */
3747 if ((current
->flags
& SEC_LINK_ONCE
) != 0)
3749 unsigned int i
, count
;
3751 coff_symbol_type
*csym
= NULL
;
3755 count
= bfd_get_symcount (abfd
);
3756 for (i
= 0, psym
= abfd
->outsymbols
; i
< count
; i
++, psym
++)
3758 if ((*psym
)->section
!= current
)
3761 /* Remember the location of the first symbol in this
3763 if (psymsec
== NULL
)
3766 /* See if this is the section symbol. */
3767 if (strcmp ((*psym
)->name
, current
->name
) == 0)
3769 csym
= coff_symbol_from (abfd
, *psym
);
3771 || csym
->native
== NULL
3772 || csym
->native
->u
.syment
.n_numaux
< 1
3773 || csym
->native
->u
.syment
.n_sclass
!= C_STAT
3774 || csym
->native
->u
.syment
.n_type
!= T_NULL
)
3777 /* Here *PSYM is the section symbol for CURRENT. */
3784 Note that we might not if we're converting the file from
3785 some other object file format. */
3788 combined_entry_type
*aux
;
3790 /* We don't touch the x_checksum field. The
3791 x_associated field is not currently supported. */
3793 aux
= csym
->native
+ 1;
3794 switch (current
->flags
& SEC_LINK_DUPLICATES
)
3796 case SEC_LINK_DUPLICATES_DISCARD
:
3797 aux
->u
.auxent
.x_scn
.x_comdat
= IMAGE_COMDAT_SELECT_ANY
;
3800 case SEC_LINK_DUPLICATES_ONE_ONLY
:
3801 aux
->u
.auxent
.x_scn
.x_comdat
=
3802 IMAGE_COMDAT_SELECT_NODUPLICATES
;
3805 case SEC_LINK_DUPLICATES_SAME_SIZE
:
3806 aux
->u
.auxent
.x_scn
.x_comdat
=
3807 IMAGE_COMDAT_SELECT_SAME_SIZE
;
3810 case SEC_LINK_DUPLICATES_SAME_CONTENTS
:
3811 aux
->u
.auxent
.x_scn
.x_comdat
=
3812 IMAGE_COMDAT_SELECT_EXACT_MATCH
;
3816 /* The COMDAT symbol must be the first symbol from this
3817 section in the symbol table. In order to make this
3818 work, we move the COMDAT symbol before the first
3819 symbol we found in the search above. It's OK to
3820 rearrange the symbol table at this point, because
3821 coff_renumber_symbols is going to rearrange it
3822 further and fix up all the aux entries. */
3823 if (psym
!= psymsec
)
3829 for (pcopy
= psym
; pcopy
> psymsec
; pcopy
--)
3830 pcopy
[0] = pcopy
[-1];
3835 #endif /* COFF_WITH_PE */
3840 /* XCOFF handles overflows in the reloc and line number count fields
3841 by creating a new section header to hold the correct values. */
3842 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3844 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3846 struct internal_scnhdr scnhdr
;
3850 internal_f
.f_nscns
++;
3851 strncpy (&(scnhdr
.s_name
[0]), current
->name
, 8);
3852 scnhdr
.s_paddr
= current
->reloc_count
;
3853 scnhdr
.s_vaddr
= current
->lineno_count
;
3855 scnhdr
.s_scnptr
= 0;
3856 scnhdr
.s_relptr
= current
->rel_filepos
;
3857 scnhdr
.s_lnnoptr
= current
->line_filepos
;
3858 scnhdr
.s_nreloc
= current
->target_index
;
3859 scnhdr
.s_nlnno
= current
->target_index
;
3860 scnhdr
.s_flags
= STYP_OVRFLO
;
3861 amt
= bfd_coff_scnhsz (abfd
);
3862 if (coff_swap_scnhdr_out (abfd
, &scnhdr
, &buff
) == 0
3863 || bfd_bwrite (& buff
, amt
, abfd
) != amt
)
3870 /* OK, now set up the filehdr... */
3872 /* Don't include the internal abs section in the section count */
3874 /* We will NOT put a fucking timestamp in the header here. Every time you
3875 put it back, I will come in and take it out again. I'm sorry. This
3876 field does not belong here. We fill it with a 0 so it compares the
3877 same but is not a reasonable time. -- gnu@cygnus.com */
3878 internal_f
.f_timdat
= 0;
3879 internal_f
.f_flags
= 0;
3881 if (abfd
->flags
& EXEC_P
)
3882 internal_f
.f_opthdr
= bfd_coff_aoutsz (abfd
);
3885 internal_f
.f_opthdr
= 0;
3888 if (xcoff_data (abfd
)->full_aouthdr
)
3889 internal_f
.f_opthdr
= bfd_coff_aoutsz (abfd
);
3891 internal_f
.f_opthdr
= SMALL_AOUTSZ
;
3897 internal_f
.f_flags
|= F_RELFLG
;
3899 internal_f
.f_flags
|= F_LNNO
;
3900 if (abfd
->flags
& EXEC_P
)
3901 internal_f
.f_flags
|= F_EXEC
;
3902 #ifdef COFF_IMAGE_WITH_PE
3904 internal_f
.f_flags
|= IMAGE_FILE_DEBUG_STRIPPED
;
3905 if (pe_data (abfd
)->real_flags
& IMAGE_FILE_LARGE_ADDRESS_AWARE
)
3906 internal_f
.f_flags
|= IMAGE_FILE_LARGE_ADDRESS_AWARE
;
3909 #ifndef COFF_WITH_pex64
3911 internal_f
.f_flags
|= IMAGE_FILE_32BIT_MACHINE
;
3913 if (bfd_little_endian (abfd
))
3914 internal_f
.f_flags
|= F_AR32WR
;
3916 internal_f
.f_flags
|= F_AR32W
;
3921 /* Target id is used in TI COFF v1 and later; COFF0 won't use this field,
3922 but it doesn't hurt to set it internally. */
3923 internal_f
.f_target_id
= TI_TARGET_ID
;
3925 #ifdef TIC80_TARGET_ID
3926 internal_f
.f_target_id
= TIC80_TARGET_ID
;
3929 /* FIXME, should do something about the other byte orders and
3933 if ((abfd
->flags
& DYNAMIC
) != 0)
3934 internal_f
.f_flags
|= F_SHROBJ
;
3935 if (bfd_get_section_by_name (abfd
, _LOADER
) != NULL
)
3936 internal_f
.f_flags
|= F_DYNLOAD
;
3939 memset (&internal_a
, 0, sizeof internal_a
);
3941 /* Set up architecture-dependent stuff. */
3943 unsigned int magic
= 0;
3944 unsigned short flags
= 0;
3946 coff_set_flags (abfd
, &magic
, &flags
);
3947 internal_f
.f_magic
= magic
;
3948 internal_f
.f_flags
|= flags
;
3949 /* ...and the "opt"hdr... */
3951 #ifdef TICOFF_AOUT_MAGIC
3952 internal_a
.magic
= TICOFF_AOUT_MAGIC
;
3953 #define __A_MAGIC_SET__
3956 internal_a
.magic
= TIC80_ARCH_MAGIC
;
3957 #define __A_MAGIC_SET__
3960 /* FIXME: What are the a.out magic numbers for the i860? */
3961 internal_a
.magic
= 0;
3962 #define __A_MAGIC_SET__
3965 internal_a
.magic
= (magic
== I960ROMAGIC
? NMAGIC
: OMAGIC
);
3966 #define __A_MAGIC_SET__
3969 #define __A_MAGIC_SET__
3970 internal_a
.magic
= PAGEMAGICBCS
;
3974 #define __A_MAGIC_SET__
3975 internal_a
.magic
= APOLLO_COFF_VERSION_NUMBER
;
3978 #if defined(M68) || defined(WE32K) || defined(M68K)
3979 #define __A_MAGIC_SET__
3981 internal_a
.magic
= LYNXCOFFMAGIC
;
3983 #if defined(TARG_AUX)
3984 internal_a
.magic
= (abfd
->flags
& D_PAGED
? PAGEMAGICPEXECPAGED
:
3985 abfd
->flags
& WP_TEXT
? PAGEMAGICPEXECSWAPPED
:
3986 PAGEMAGICEXECSWAPPED
);
3988 #if defined (PAGEMAGICPEXECPAGED)
3989 internal_a
.magic
= PAGEMAGICPEXECPAGED
;
3991 #endif /* TARG_AUX */
3993 #endif /* M68 || WE32K || M68K */
3996 #define __A_MAGIC_SET__
3997 internal_a
.magic
= ZMAGIC
;
4001 #define __A_MAGIC_SET__
4002 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR_MAGIC
;
4005 #if defined MCORE_PE
4006 #define __A_MAGIC_SET__
4007 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR_MAGIC
;
4011 #define __A_MAGIC_SET__
4013 internal_a
.magic
= LYNXCOFFMAGIC
;
4015 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR64_MAGIC
;
4017 internal_a
.magic
= ZMAGIC
;
4022 #define __A_MAGIC_SET__
4023 internal_a
.magic
= PE32PMAGIC
;
4027 #define __A_MAGIC_SET__
4029 internal_a
.magic
= LYNXCOFFMAGIC
;
4034 #define __A_MAGIC_SET__
4035 internal_a
.magic
= (abfd
->flags
& D_PAGED
) ? RS6K_AOUTHDR_ZMAGIC
:
4036 (abfd
->flags
& WP_TEXT
) ? RS6K_AOUTHDR_NMAGIC
:
4037 RS6K_AOUTHDR_OMAGIC
;
4040 #if defined(SH) && defined(COFF_WITH_PE)
4041 #define __A_MAGIC_SET__
4042 internal_a
.magic
= SH_PE_MAGIC
;
4045 #if defined(MIPS) && defined(COFF_WITH_PE)
4046 #define __A_MAGIC_SET__
4047 internal_a
.magic
= MIPS_PE_MAGIC
;
4051 #define __A_MAGIC_SET__
4052 internal_a
.magic
= NMAGIC
; /* Assume separate i/d. */
4056 #define __A_MAGIC_SET__
4057 internal_a
.magic
= MAXQ20MAGIC
;
4060 #ifndef __A_MAGIC_SET__
4061 #include "Your aouthdr magic number is not being set!"
4063 #undef __A_MAGIC_SET__
4067 /* FIXME: Does anybody ever set this to another value? */
4068 internal_a
.vstamp
= 0;
4070 /* Now should write relocs, strings, syms. */
4071 obj_sym_filepos (abfd
) = sym_base
;
4073 if (bfd_get_symcount (abfd
) != 0)
4077 if (!coff_renumber_symbols (abfd
, &firstundef
))
4079 coff_mangle_symbols (abfd
);
4080 if (! coff_write_symbols (abfd
))
4082 if (! coff_write_linenumbers (abfd
))
4084 if (! coff_write_relocs (abfd
, firstundef
))
4087 #ifdef COFF_LONG_SECTION_NAMES
4088 else if (long_section_names
&& ! obj_coff_strings_written (abfd
))
4090 /* If we have long section names we have to write out the string
4091 table even if there are no symbols. */
4092 if (! coff_write_symbols (abfd
))
4096 #ifdef COFF_IMAGE_WITH_PE
4098 else if ((abfd
->flags
& EXEC_P
) != 0)
4102 /* PowerPC PE appears to require that all executable files be
4103 rounded up to the page size. */
4106 (file_ptr
) BFD_ALIGN (sym_base
, COFF_PAGE_SIZE
) - 1,
4108 || bfd_bwrite (&b
, (bfd_size_type
) 1, abfd
) != 1)
4114 /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF
4115 backend linker, and obj_raw_syment_count is not valid until after
4116 coff_write_symbols is called. */
4117 if (obj_raw_syment_count (abfd
) != 0)
4119 internal_f
.f_symptr
= sym_base
;
4121 /* AIX appears to require that F_RELFLG not be set if there are
4122 local symbols but no relocations. */
4123 internal_f
.f_flags
&=~ F_RELFLG
;
4128 if (long_section_names
)
4129 internal_f
.f_symptr
= sym_base
;
4131 internal_f
.f_symptr
= 0;
4132 internal_f
.f_flags
|= F_LSYMS
;
4137 internal_a
.tsize
= text_sec
->size
;
4138 internal_a
.text_start
= internal_a
.tsize
? text_sec
->vma
: 0;
4142 internal_a
.dsize
= data_sec
->size
;
4143 internal_a
.data_start
= internal_a
.dsize
? data_sec
->vma
: 0;
4147 internal_a
.bsize
= bss_sec
->size
;
4148 if (internal_a
.bsize
&& bss_sec
->vma
< internal_a
.data_start
)
4149 internal_a
.data_start
= bss_sec
->vma
;
4152 internal_a
.entry
= bfd_get_start_address (abfd
);
4153 internal_f
.f_nsyms
= obj_raw_syment_count (abfd
);
4156 if (xcoff_data (abfd
)->full_aouthdr
)
4159 asection
*loader_sec
;
4161 internal_a
.vstamp
= 1;
4163 internal_a
.o_snentry
= xcoff_data (abfd
)->snentry
;
4164 if (internal_a
.o_snentry
== 0)
4165 internal_a
.entry
= (bfd_vma
) -1;
4167 if (text_sec
!= NULL
)
4169 internal_a
.o_sntext
= text_sec
->target_index
;
4170 internal_a
.o_algntext
= bfd_get_section_alignment (abfd
, text_sec
);
4174 internal_a
.o_sntext
= 0;
4175 internal_a
.o_algntext
= 0;
4177 if (data_sec
!= NULL
)
4179 internal_a
.o_sndata
= data_sec
->target_index
;
4180 internal_a
.o_algndata
= bfd_get_section_alignment (abfd
, data_sec
);
4184 internal_a
.o_sndata
= 0;
4185 internal_a
.o_algndata
= 0;
4187 loader_sec
= bfd_get_section_by_name (abfd
, ".loader");
4188 if (loader_sec
!= NULL
)
4189 internal_a
.o_snloader
= loader_sec
->target_index
;
4191 internal_a
.o_snloader
= 0;
4192 if (bss_sec
!= NULL
)
4193 internal_a
.o_snbss
= bss_sec
->target_index
;
4195 internal_a
.o_snbss
= 0;
4197 toc
= xcoff_data (abfd
)->toc
;
4198 internal_a
.o_toc
= toc
;
4199 internal_a
.o_sntoc
= xcoff_data (abfd
)->sntoc
;
4201 internal_a
.o_modtype
= xcoff_data (abfd
)->modtype
;
4202 if (xcoff_data (abfd
)->cputype
!= -1)
4203 internal_a
.o_cputype
= xcoff_data (abfd
)->cputype
;
4206 switch (bfd_get_arch (abfd
))
4208 case bfd_arch_rs6000
:
4209 internal_a
.o_cputype
= 4;
4211 case bfd_arch_powerpc
:
4212 if (bfd_get_mach (abfd
) == bfd_mach_ppc
)
4213 internal_a
.o_cputype
= 3;
4215 internal_a
.o_cputype
= 1;
4221 internal_a
.o_maxstack
= xcoff_data (abfd
)->maxstack
;
4222 internal_a
.o_maxdata
= xcoff_data (abfd
)->maxdata
;
4226 /* Now write them. */
4227 if (bfd_seek (abfd
, (file_ptr
) 0, SEEK_SET
) != 0)
4232 bfd_size_type amount
= bfd_coff_filhsz (abfd
);
4234 buff
= bfd_malloc (amount
);
4238 bfd_coff_swap_filehdr_out (abfd
, & internal_f
, buff
);
4239 amount
= bfd_bwrite (buff
, amount
, abfd
);
4243 if (amount
!= bfd_coff_filhsz (abfd
))
4247 if (abfd
->flags
& EXEC_P
)
4249 /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR.
4250 include/coff/pe.h sets AOUTSZ == sizeof (PEAOUTHDR)). */
4252 bfd_size_type amount
= bfd_coff_aoutsz (abfd
);
4254 buff
= bfd_malloc (amount
);
4258 coff_swap_aouthdr_out (abfd
, & internal_a
, buff
);
4259 amount
= bfd_bwrite (buff
, amount
, abfd
);
4263 if (amount
!= bfd_coff_aoutsz (abfd
))
4266 #ifdef COFF_IMAGE_WITH_PE
4267 if (! coff_apply_checksum (abfd
))
4277 /* XCOFF seems to always write at least a small a.out header. */
4278 coff_swap_aouthdr_out (abfd
, & internal_a
, & buff
);
4279 if (xcoff_data (abfd
)->full_aouthdr
)
4280 size
= bfd_coff_aoutsz (abfd
);
4282 size
= SMALL_AOUTSZ
;
4283 if (bfd_bwrite (& buff
, (bfd_size_type
) size
, abfd
) != size
)
4292 coff_set_section_contents (bfd
* abfd
,
4294 const void * location
,
4296 bfd_size_type count
)
4298 if (! abfd
->output_has_begun
) /* Set by bfd.c handler. */
4300 if (! coff_compute_section_file_positions (abfd
))
4304 #if defined(_LIB) && !defined(TARG_AUX)
4305 /* The physical address field of a .lib section is used to hold the
4306 number of shared libraries in the section. This code counts the
4307 number of sections being written, and increments the lma field
4310 I have found no documentation on the contents of this section.
4311 Experimentation indicates that the section contains zero or more
4312 records, each of which has the following structure:
4314 - a (four byte) word holding the length of this record, in words,
4315 - a word that always seems to be set to "2",
4316 - the path to a shared library, null-terminated and then padded
4317 to a whole word boundary.
4319 bfd_assert calls have been added to alert if an attempt is made
4320 to write a section which doesn't follow these assumptions. The
4321 code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe
4322 <robertl@arnet.com> (Thanks!).
4324 Gvran Uddeborg <gvran@uddeborg.pp.se>. */
4325 if (strcmp (section
->name
, _LIB
) == 0)
4327 bfd_byte
*rec
, *recend
;
4329 rec
= (bfd_byte
*) location
;
4330 recend
= rec
+ count
;
4331 while (rec
< recend
)
4334 rec
+= bfd_get_32 (abfd
, rec
) * 4;
4337 BFD_ASSERT (rec
== recend
);
4341 /* Don't write out bss sections - one way to do this is to
4342 see if the filepos has not been set. */
4343 if (section
->filepos
== 0)
4346 if (bfd_seek (abfd
, section
->filepos
+ offset
, SEEK_SET
) != 0)
4352 return bfd_bwrite (location
, count
, abfd
) == count
;
4356 buy_and_read (bfd
*abfd
, file_ptr where
, bfd_size_type size
)
4358 void * area
= bfd_alloc (abfd
, size
);
4362 if (bfd_seek (abfd
, where
, SEEK_SET
) != 0
4363 || bfd_bread (area
, size
, abfd
) != size
)
4372 Creating the linenumber table is done by reading in the entire
4373 coff linenumber table, and creating another table for internal use.
4375 A coff linenumber table is structured so that each function
4376 is marked as having a line number of 0. Each line within the
4377 function is an offset from the first line in the function. The
4378 base of the line number information for the table is stored in
4379 the symbol associated with the function.
4381 Note: The PE format uses line number 0 for a flag indicating a
4384 The information is copied from the external to the internal
4385 table, and each symbol which marks a function is marked by
4388 How does this work ?
4392 coff_sort_func_alent (const void * arg1
, const void * arg2
)
4394 const alent
*al1
= *(const alent
**) arg1
;
4395 const alent
*al2
= *(const alent
**) arg2
;
4396 const coff_symbol_type
*s1
= (const coff_symbol_type
*) (al1
->u
.sym
);
4397 const coff_symbol_type
*s2
= (const coff_symbol_type
*) (al2
->u
.sym
);
4399 if (s1
->symbol
.value
< s2
->symbol
.value
)
4401 else if (s1
->symbol
.value
> s2
->symbol
.value
)
4408 coff_slurp_line_table (bfd
*abfd
, asection
*asect
)
4410 LINENO
*native_lineno
;
4411 alent
*lineno_cache
;
4413 unsigned int counter
;
4415 bfd_vma prev_offset
= 0;
4417 unsigned int nbr_func
;
4420 BFD_ASSERT (asect
->lineno
== NULL
);
4422 amt
= ((bfd_size_type
) asect
->lineno_count
+ 1) * sizeof (alent
);
4423 lineno_cache
= bfd_alloc (abfd
, amt
);
4424 if (lineno_cache
== NULL
)
4427 amt
= (bfd_size_type
) bfd_coff_linesz (abfd
) * asect
->lineno_count
;
4428 native_lineno
= (LINENO
*) buy_and_read (abfd
, asect
->line_filepos
, amt
);
4429 if (native_lineno
== NULL
)
4431 (*_bfd_error_handler
)
4432 (_("%B: warning: line number table read failed"), abfd
);
4433 bfd_release (abfd
, lineno_cache
);
4437 cache_ptr
= lineno_cache
;
4438 asect
->lineno
= lineno_cache
;
4439 src
= native_lineno
;
4442 for (counter
= 0; counter
< asect
->lineno_count
; counter
++)
4444 struct internal_lineno dst
;
4446 bfd_coff_swap_lineno_in (abfd
, src
, &dst
);
4447 cache_ptr
->line_number
= dst
.l_lnno
;
4449 if (cache_ptr
->line_number
== 0)
4452 bfd_signed_vma symndx
;
4453 coff_symbol_type
*sym
;
4457 symndx
= dst
.l_addr
.l_symndx
;
4459 || (bfd_vma
) symndx
>= obj_raw_syment_count (abfd
))
4461 (*_bfd_error_handler
)
4462 (_("%B: warning: illegal symbol index %ld in line numbers"),
4463 abfd
, dst
.l_addr
.l_symndx
);
4468 /* FIXME: We should not be casting between ints and
4469 pointers like this. */
4470 sym
= ((coff_symbol_type
*)
4471 ((symndx
+ obj_raw_syments (abfd
))
4472 ->u
.syment
._n
._n_n
._n_zeroes
));
4473 cache_ptr
->u
.sym
= (asymbol
*) sym
;
4474 if (sym
->lineno
!= NULL
&& ! warned
)
4475 (*_bfd_error_handler
)
4476 (_("%B: warning: duplicate line number information for `%s'"),
4477 abfd
, bfd_asymbol_name (&sym
->symbol
));
4479 sym
->lineno
= cache_ptr
;
4480 if (sym
->symbol
.value
< prev_offset
)
4482 prev_offset
= sym
->symbol
.value
;
4485 cache_ptr
->u
.offset
= dst
.l_addr
.l_paddr
4486 - bfd_section_vma (abfd
, asect
);
4491 cache_ptr
->line_number
= 0;
4492 bfd_release (abfd
, native_lineno
);
4494 /* On some systems (eg AIX5.3) the lineno table may not be sorted. */
4497 /* Sort the table. */
4499 alent
*n_lineno_cache
;
4501 /* Create a table of functions. */
4502 func_table
= bfd_alloc (abfd
, nbr_func
* sizeof (alent
*));
4503 if (func_table
!= NULL
)
4505 alent
**p
= func_table
;
4508 for (i
= 0; i
< counter
; i
++)
4509 if (lineno_cache
[i
].line_number
== 0)
4510 *p
++ = &lineno_cache
[i
];
4512 /* Sort by functions. */
4513 qsort (func_table
, nbr_func
, sizeof (alent
*), coff_sort_func_alent
);
4515 /* Create the new sorted table. */
4516 amt
= ((bfd_size_type
) asect
->lineno_count
+ 1) * sizeof (alent
);
4517 n_lineno_cache
= bfd_alloc (abfd
, amt
);
4518 if (n_lineno_cache
!= NULL
)
4520 alent
*n_cache_ptr
= n_lineno_cache
;
4522 for (i
= 0; i
< nbr_func
; i
++)
4524 coff_symbol_type
*sym
;
4525 alent
*old_ptr
= func_table
[i
];
4527 /* Copy the function entry and update it. */
4528 *n_cache_ptr
= *old_ptr
;
4529 sym
= (coff_symbol_type
*)n_cache_ptr
->u
.sym
;
4530 sym
->lineno
= n_cache_ptr
;
4534 /* Copy the line number entries. */
4535 while (old_ptr
->line_number
!= 0)
4536 *n_cache_ptr
++ = *old_ptr
++;
4538 n_cache_ptr
->line_number
= 0;
4539 memcpy (lineno_cache
, n_lineno_cache
, amt
);
4541 bfd_release (abfd
, func_table
);
4548 /* Slurp in the symbol table, converting it to generic form. Note
4549 that if coff_relocate_section is defined, the linker will read
4550 symbols via coff_link_add_symbols, rather than via this routine. */
4553 coff_slurp_symbol_table (bfd
* abfd
)
4555 combined_entry_type
*native_symbols
;
4556 coff_symbol_type
*cached_area
;
4557 unsigned int *table_ptr
;
4559 unsigned int number_of_symbols
= 0;
4561 if (obj_symbols (abfd
))
4564 /* Read in the symbol table. */
4565 if ((native_symbols
= coff_get_normalized_symtab (abfd
)) == NULL
)
4568 /* Allocate enough room for all the symbols in cached form. */
4569 amt
= obj_raw_syment_count (abfd
);
4570 amt
*= sizeof (coff_symbol_type
);
4571 cached_area
= bfd_alloc (abfd
, amt
);
4572 if (cached_area
== NULL
)
4575 amt
= obj_raw_syment_count (abfd
);
4576 amt
*= sizeof (unsigned int);
4577 table_ptr
= bfd_alloc (abfd
, amt
);
4579 if (table_ptr
== NULL
)
4583 coff_symbol_type
*dst
= cached_area
;
4584 unsigned int last_native_index
= obj_raw_syment_count (abfd
);
4585 unsigned int this_index
= 0;
4587 while (this_index
< last_native_index
)
4589 combined_entry_type
*src
= native_symbols
+ this_index
;
4590 table_ptr
[this_index
] = number_of_symbols
;
4591 dst
->symbol
.the_bfd
= abfd
;
4593 dst
->symbol
.name
= (char *) (src
->u
.syment
._n
._n_n
._n_offset
);
4594 /* We use the native name field to point to the cached field. */
4595 src
->u
.syment
._n
._n_n
._n_zeroes
= (bfd_hostptr_t
) dst
;
4596 dst
->symbol
.section
= coff_section_from_bfd_index (abfd
,
4597 src
->u
.syment
.n_scnum
);
4598 dst
->symbol
.flags
= 0;
4599 dst
->done_lineno
= FALSE
;
4601 switch (src
->u
.syment
.n_sclass
)
4605 /* Fall through to next case. */
4612 case C_THUMBEXTFUNC
:
4618 case C_SYSTEM
: /* System Wide variable. */
4621 /* In PE, 0x68 (104) denotes a section symbol. */
4623 /* In PE, 0x69 (105) denotes a weak external symbol. */
4626 switch (coff_classify_symbol (abfd
, &src
->u
.syment
))
4628 case COFF_SYMBOL_GLOBAL
:
4629 dst
->symbol
.flags
= BSF_EXPORT
| BSF_GLOBAL
;
4630 #if defined COFF_WITH_PE
4631 /* PE sets the symbol to a value relative to the
4632 start of the section. */
4633 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4635 dst
->symbol
.value
= (src
->u
.syment
.n_value
4636 - dst
->symbol
.section
->vma
);
4638 if (ISFCN ((src
->u
.syment
.n_type
)))
4639 /* A function ext does not go at the end of a
4641 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
4644 case COFF_SYMBOL_COMMON
:
4645 dst
->symbol
.section
= bfd_com_section_ptr
;
4646 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4649 case COFF_SYMBOL_UNDEFINED
:
4650 dst
->symbol
.section
= bfd_und_section_ptr
;
4651 dst
->symbol
.value
= 0;
4654 case COFF_SYMBOL_PE_SECTION
:
4655 dst
->symbol
.flags
|= BSF_EXPORT
| BSF_SECTION_SYM
;
4656 dst
->symbol
.value
= 0;
4659 case COFF_SYMBOL_LOCAL
:
4660 dst
->symbol
.flags
= BSF_LOCAL
;
4661 #if defined COFF_WITH_PE
4662 /* PE sets the symbol to a value relative to the
4663 start of the section. */
4664 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4666 dst
->symbol
.value
= (src
->u
.syment
.n_value
4667 - dst
->symbol
.section
->vma
);
4669 if (ISFCN ((src
->u
.syment
.n_type
)))
4670 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
4675 /* A symbol with a csect entry should not go at the end. */
4676 if (src
->u
.syment
.n_numaux
> 0)
4677 dst
->symbol
.flags
|= BSF_NOT_AT_END
;
4681 if (src
->u
.syment
.n_sclass
== C_NT_WEAK
)
4682 dst
->symbol
.flags
|= BSF_WEAK
;
4684 if (src
->u
.syment
.n_sclass
== C_SECTION
4685 && src
->u
.syment
.n_scnum
> 0)
4686 dst
->symbol
.flags
= BSF_LOCAL
;
4688 if (src
->u
.syment
.n_sclass
== C_WEAKEXT
)
4689 dst
->symbol
.flags
|= BSF_WEAK
;
4693 case C_STAT
: /* Static. */
4695 case C_LEAFSTAT
: /* Static leaf procedure. */
4698 case C_THUMBSTAT
: /* Thumb static. */
4699 case C_THUMBLABEL
: /* Thumb label. */
4700 case C_THUMBSTATFUNC
:/* Thumb static function. */
4702 case C_LABEL
: /* Label. */
4703 if (src
->u
.syment
.n_scnum
== N_DEBUG
)
4704 dst
->symbol
.flags
= BSF_DEBUGGING
;
4706 dst
->symbol
.flags
= BSF_LOCAL
;
4708 /* Base the value as an index from the base of the
4709 section, if there is one. */
4710 if (dst
->symbol
.section
)
4712 #if defined COFF_WITH_PE
4713 /* PE sets the symbol to a value relative to the
4714 start of the section. */
4715 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4717 dst
->symbol
.value
= (src
->u
.syment
.n_value
4718 - dst
->symbol
.section
->vma
);
4722 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4725 case C_MOS
: /* Member of structure. */
4726 case C_EOS
: /* End of structure. */
4727 case C_REGPARM
: /* Register parameter. */
4728 case C_REG
: /* register variable. */
4729 /* C_AUTOARG conflicts with TI COFF C_UEXT. */
4730 #if !defined (TIC80COFF) && !defined (TICOFF)
4732 case C_AUTOARG
: /* 960-specific storage class. */
4735 case C_TPDEF
: /* Type definition. */
4737 case C_AUTO
: /* Automatic variable. */
4738 case C_FIELD
: /* Bit field. */
4739 case C_ENTAG
: /* Enumeration tag. */
4740 case C_MOE
: /* Member of enumeration. */
4741 case C_MOU
: /* Member of union. */
4742 case C_UNTAG
: /* Union tag. */
4743 dst
->symbol
.flags
= BSF_DEBUGGING
;
4744 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4747 case C_FILE
: /* File name. */
4748 case C_STRTAG
: /* Structure tag. */
4765 dst
->symbol
.flags
= BSF_DEBUGGING
;
4766 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4770 case C_BINCL
: /* Beginning of include file. */
4771 case C_EINCL
: /* Ending of include file. */
4772 /* The value is actually a pointer into the line numbers
4773 of the file. We locate the line number entry, and
4774 set the section to the section which contains it, and
4775 the value to the index in that section. */
4779 dst
->symbol
.flags
= BSF_DEBUGGING
;
4780 for (sec
= abfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
4781 if (sec
->line_filepos
<= (file_ptr
) src
->u
.syment
.n_value
4782 && ((file_ptr
) (sec
->line_filepos
4783 + sec
->lineno_count
* bfd_coff_linesz (abfd
))
4784 > (file_ptr
) src
->u
.syment
.n_value
))
4787 dst
->symbol
.value
= 0;
4790 dst
->symbol
.section
= sec
;
4791 dst
->symbol
.value
= ((src
->u
.syment
.n_value
4792 - sec
->line_filepos
)
4793 / bfd_coff_linesz (abfd
));
4800 dst
->symbol
.flags
= BSF_DEBUGGING
;
4802 /* The value is actually a symbol index. Save a pointer
4803 to the symbol instead of the index. FIXME: This
4804 should use a union. */
4805 src
->u
.syment
.n_value
=
4806 (long) (native_symbols
+ src
->u
.syment
.n_value
);
4807 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4812 case C_BLOCK
: /* ".bb" or ".eb". */
4813 case C_FCN
: /* ".bf" or ".ef" (or PE ".lf"). */
4814 case C_EFCN
: /* Physical end of function. */
4815 #if defined COFF_WITH_PE
4816 /* PE sets the symbol to a value relative to the start
4818 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4819 if (strcmp (dst
->symbol
.name
, ".bf") != 0)
4821 /* PE uses funny values for .ef and .lf; don't
4823 dst
->symbol
.flags
= BSF_DEBUGGING
;
4826 dst
->symbol
.flags
= BSF_DEBUGGING
| BSF_DEBUGGING_RELOC
;
4828 /* Base the value as an index from the base of the
4830 dst
->symbol
.flags
= BSF_LOCAL
;
4831 dst
->symbol
.value
= (src
->u
.syment
.n_value
4832 - dst
->symbol
.section
->vma
);
4836 case C_STATLAB
: /* Static load time label. */
4837 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4838 dst
->symbol
.flags
= BSF_GLOBAL
;
4842 /* PE DLLs sometimes have zeroed out symbols for some
4843 reason. Just ignore them without a warning. */
4844 if (src
->u
.syment
.n_type
== 0
4845 && src
->u
.syment
.n_value
== 0
4846 && src
->u
.syment
.n_scnum
== 0)
4849 case C_EXTDEF
: /* External definition. */
4850 case C_ULABEL
: /* Undefined label. */
4851 case C_USTATIC
: /* Undefined static. */
4852 #ifndef COFF_WITH_PE
4853 /* C_LINE in regular coff is 0x68. NT has taken over this storage
4854 class to represent a section symbol. */
4855 case C_LINE
: /* line # reformatted as symbol table entry. */
4856 /* NT uses 0x67 for a weak symbol, not C_ALIAS. */
4857 case C_ALIAS
: /* Duplicate tag. */
4859 /* New storage classes for TI COFF. */
4860 #if defined(TIC80COFF) || defined(TICOFF)
4861 case C_UEXT
: /* Tentative external definition. */
4863 case C_EXTLAB
: /* External load time label. */
4864 case C_HIDDEN
: /* Ext symbol in dmert public lib. */
4866 (*_bfd_error_handler
)
4867 (_("%B: Unrecognized storage class %d for %s symbol `%s'"),
4868 abfd
, src
->u
.syment
.n_sclass
,
4869 dst
->symbol
.section
->name
, dst
->symbol
.name
);
4870 dst
->symbol
.flags
= BSF_DEBUGGING
;
4871 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4877 dst
->symbol
.udata
.i
= 0;
4879 this_index
+= (src
->u
.syment
.n_numaux
) + 1;
4881 number_of_symbols
++;
4885 obj_symbols (abfd
) = cached_area
;
4886 obj_raw_syments (abfd
) = native_symbols
;
4888 bfd_get_symcount (abfd
) = number_of_symbols
;
4889 obj_convert (abfd
) = table_ptr
;
4890 /* Slurp the line tables for each section too. */
4897 coff_slurp_line_table (abfd
, p
);
4905 /* Classify a COFF symbol. A couple of targets have globally visible
4906 symbols which are not class C_EXT, and this handles those. It also
4907 recognizes some special PE cases. */
4909 static enum coff_symbol_classification
4910 coff_classify_symbol (bfd
*abfd
,
4911 struct internal_syment
*syment
)
4913 /* FIXME: This partially duplicates the switch in
4914 coff_slurp_symbol_table. */
4915 switch (syment
->n_sclass
)
4924 case C_THUMBEXTFUNC
:
4932 if (syment
->n_scnum
== 0)
4934 if (syment
->n_value
== 0)
4935 return COFF_SYMBOL_UNDEFINED
;
4937 return COFF_SYMBOL_COMMON
;
4939 return COFF_SYMBOL_GLOBAL
;
4946 if (syment
->n_sclass
== C_STAT
)
4948 if (syment
->n_scnum
== 0)
4949 /* The Microsoft compiler sometimes generates these if a
4950 small static function is inlined every time it is used.
4951 The function is discarded, but the symbol table entry
4953 return COFF_SYMBOL_LOCAL
;
4955 #ifdef STRICT_PE_FORMAT
4956 /* This is correct for Microsoft generated objects, but it
4957 breaks gas generated objects. */
4958 if (syment
->n_value
== 0)
4961 char buf
[SYMNMLEN
+ 1];
4963 sec
= coff_section_from_bfd_index (abfd
, syment
->n_scnum
);
4965 && (strcmp (bfd_get_section_name (abfd
, sec
),
4966 _bfd_coff_internal_syment_name (abfd
, syment
, buf
))
4968 return COFF_SYMBOL_PE_SECTION
;
4972 return COFF_SYMBOL_LOCAL
;
4975 if (syment
->n_sclass
== C_SECTION
)
4977 /* In some cases in a DLL generated by the Microsoft linker, the
4978 n_value field will contain garbage. FIXME: This should
4979 probably be handled by the swapping function instead. */
4980 syment
->n_value
= 0;
4981 if (syment
->n_scnum
== 0)
4982 return COFF_SYMBOL_UNDEFINED
;
4983 return COFF_SYMBOL_PE_SECTION
;
4985 #endif /* COFF_WITH_PE */
4987 /* If it is not a global symbol, we presume it is a local symbol. */
4988 if (syment
->n_scnum
== 0)
4990 char buf
[SYMNMLEN
+ 1];
4992 (*_bfd_error_handler
)
4993 (_("warning: %B: local symbol `%s' has no section"),
4994 abfd
, _bfd_coff_internal_syment_name (abfd
, syment
, buf
));
4997 return COFF_SYMBOL_LOCAL
;
5004 Coff relocations are easily transformed into the internal BFD form
5007 Reading a coff relocation table is done in the following stages:
5009 o Read the entire coff relocation table into memory.
5011 o Process each relocation in turn; first swap it from the
5012 external to the internal form.
5014 o Turn the symbol referenced in the relocation's symbol index
5015 into a pointer into the canonical symbol table.
5016 This table is the same as the one returned by a call to
5017 @code{bfd_canonicalize_symtab}. The back end will call that
5018 routine and save the result if a canonicalization hasn't been done.
5020 o The reloc index is turned into a pointer to a howto
5021 structure, in a back end specific way. For instance, the 386
5022 and 960 use the @code{r_type} to directly produce an index
5023 into a howto table vector; the 88k subtracts a number from the
5024 @code{r_type} field and creates an addend field.
5028 #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
5030 coff_symbol_type *coffsym = NULL; \
5032 if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
5033 coffsym = (obj_symbols (abfd) \
5034 + (cache_ptr->sym_ptr_ptr - symbols)); \
5036 coffsym = coff_symbol_from (abfd, ptr); \
5037 if (coffsym != NULL \
5038 && coffsym->native->u.syment.n_scnum == 0) \
5039 cache_ptr->addend = 0; \
5040 else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
5041 && ptr->section != NULL) \
5042 cache_ptr->addend = - (ptr->section->vma + ptr->value); \
5044 cache_ptr->addend = 0; \
5049 coff_slurp_reloc_table (bfd
* abfd
, sec_ptr asect
, asymbol
** symbols
)
5051 RELOC
*native_relocs
;
5052 arelent
*reloc_cache
;
5057 if (asect
->relocation
)
5059 if (asect
->reloc_count
== 0)
5061 if (asect
->flags
& SEC_CONSTRUCTOR
)
5063 if (!coff_slurp_symbol_table (abfd
))
5066 amt
= (bfd_size_type
) bfd_coff_relsz (abfd
) * asect
->reloc_count
;
5067 native_relocs
= (RELOC
*) buy_and_read (abfd
, asect
->rel_filepos
, amt
);
5068 amt
= (bfd_size_type
) asect
->reloc_count
* sizeof (arelent
);
5069 reloc_cache
= bfd_alloc (abfd
, amt
);
5071 if (reloc_cache
== NULL
|| native_relocs
== NULL
)
5074 for (idx
= 0; idx
< asect
->reloc_count
; idx
++)
5076 struct internal_reloc dst
;
5077 struct external_reloc
*src
;
5078 #ifndef RELOC_PROCESSING
5082 cache_ptr
= reloc_cache
+ idx
;
5083 src
= native_relocs
+ idx
;
5086 coff_swap_reloc_in (abfd
, src
, &dst
);
5088 #ifdef RELOC_PROCESSING
5089 RELOC_PROCESSING (cache_ptr
, &dst
, symbols
, abfd
, asect
);
5091 cache_ptr
->address
= dst
.r_vaddr
;
5093 if (dst
.r_symndx
!= -1)
5095 if (dst
.r_symndx
< 0 || dst
.r_symndx
>= obj_conv_table_size (abfd
))
5097 (*_bfd_error_handler
)
5098 (_("%B: warning: illegal symbol index %ld in relocs"),
5099 abfd
, dst
.r_symndx
);
5100 cache_ptr
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
5105 cache_ptr
->sym_ptr_ptr
= (symbols
5106 + obj_convert (abfd
)[dst
.r_symndx
]);
5107 ptr
= *(cache_ptr
->sym_ptr_ptr
);
5112 cache_ptr
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
5116 /* The symbols definitions that we have read in have been
5117 relocated as if their sections started at 0. But the offsets
5118 refering to the symbols in the raw data have not been
5119 modified, so we have to have a negative addend to compensate.
5121 Note that symbols which used to be common must be left alone. */
5123 /* Calculate any reloc addend by looking at the symbol. */
5124 CALC_ADDEND (abfd
, ptr
, dst
, cache_ptr
);
5126 cache_ptr
->address
-= asect
->vma
;
5127 /* !! cache_ptr->section = NULL;*/
5129 /* Fill in the cache_ptr->howto field from dst.r_type. */
5130 RTYPE2HOWTO (cache_ptr
, &dst
);
5131 #endif /* RELOC_PROCESSING */
5133 if (cache_ptr
->howto
== NULL
)
5135 (*_bfd_error_handler
)
5136 (_("%B: illegal relocation type %d at address 0x%lx"),
5137 abfd
, dst
.r_type
, (long) dst
.r_vaddr
);
5138 bfd_set_error (bfd_error_bad_value
);
5143 asect
->relocation
= reloc_cache
;
5147 #ifndef coff_rtype_to_howto
5150 /* Get the howto structure for a reloc. This is only used if the file
5151 including this one defines coff_relocate_section to be
5152 _bfd_coff_generic_relocate_section, so it is OK if it does not
5153 always work. It is the responsibility of the including file to
5154 make sure it is reasonable if it is needed. */
5156 static reloc_howto_type
*
5157 coff_rtype_to_howto (bfd
*abfd ATTRIBUTE_UNUSED
,
5158 asection
*sec ATTRIBUTE_UNUSED
,
5159 struct internal_reloc
*rel
,
5160 struct coff_link_hash_entry
*h ATTRIBUTE_UNUSED
,
5161 struct internal_syment
*sym ATTRIBUTE_UNUSED
,
5162 bfd_vma
*addendp ATTRIBUTE_UNUSED
)
5166 genrel
.howto
= NULL
;
5167 RTYPE2HOWTO (&genrel
, rel
);
5168 return genrel
.howto
;
5171 #else /* ! defined (RTYPE2HOWTO) */
5173 #define coff_rtype_to_howto NULL
5175 #endif /* ! defined (RTYPE2HOWTO) */
5176 #endif /* ! defined (coff_rtype_to_howto) */
5178 /* This is stupid. This function should be a boolean predicate. */
5181 coff_canonicalize_reloc (bfd
* abfd
,
5186 arelent
*tblptr
= section
->relocation
;
5187 unsigned int count
= 0;
5189 if (section
->flags
& SEC_CONSTRUCTOR
)
5191 /* This section has relocs made up by us, they are not in the
5192 file, so take them out of their chain and place them into
5193 the data area provided. */
5194 arelent_chain
*chain
= section
->constructor_chain
;
5196 for (count
= 0; count
< section
->reloc_count
; count
++)
5198 *relptr
++ = &chain
->relent
;
5199 chain
= chain
->next
;
5204 if (! coff_slurp_reloc_table (abfd
, section
, symbols
))
5207 tblptr
= section
->relocation
;
5209 for (; count
++ < section
->reloc_count
;)
5210 *relptr
++ = tblptr
++;
5213 return section
->reloc_count
;
5216 #ifndef coff_reloc16_estimate
5217 #define coff_reloc16_estimate dummy_reloc16_estimate
5220 dummy_reloc16_estimate (bfd
*abfd ATTRIBUTE_UNUSED
,
5221 asection
*input_section ATTRIBUTE_UNUSED
,
5222 arelent
*reloc ATTRIBUTE_UNUSED
,
5223 unsigned int shrink ATTRIBUTE_UNUSED
,
5224 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
)
5232 #ifndef coff_reloc16_extra_cases
5234 #define coff_reloc16_extra_cases dummy_reloc16_extra_cases
5236 /* This works even if abort is not declared in any header file. */
5239 dummy_reloc16_extra_cases (bfd
*abfd ATTRIBUTE_UNUSED
,
5240 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
,
5241 struct bfd_link_order
*link_order ATTRIBUTE_UNUSED
,
5242 arelent
*reloc ATTRIBUTE_UNUSED
,
5243 bfd_byte
*data ATTRIBUTE_UNUSED
,
5244 unsigned int *src_ptr ATTRIBUTE_UNUSED
,
5245 unsigned int *dst_ptr ATTRIBUTE_UNUSED
)
5251 #ifndef coff_bfd_link_hash_table_free
5252 #define coff_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
5255 /* If coff_relocate_section is defined, we can use the optimized COFF
5256 backend linker. Otherwise we must continue to use the old linker. */
5258 #ifdef coff_relocate_section
5260 #ifndef coff_bfd_link_hash_table_create
5261 #define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create
5263 #ifndef coff_bfd_link_add_symbols
5264 #define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols
5266 #ifndef coff_bfd_final_link
5267 #define coff_bfd_final_link _bfd_coff_final_link
5270 #else /* ! defined (coff_relocate_section) */
5272 #define coff_relocate_section NULL
5273 #ifndef coff_bfd_link_hash_table_create
5274 #define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
5276 #ifndef coff_bfd_link_add_symbols
5277 #define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols
5279 #define coff_bfd_final_link _bfd_generic_final_link
5281 #endif /* ! defined (coff_relocate_section) */
5283 #define coff_bfd_link_just_syms _bfd_generic_link_just_syms
5284 #define coff_bfd_link_split_section _bfd_generic_link_split_section
5286 #ifndef coff_start_final_link
5287 #define coff_start_final_link NULL
5290 #ifndef coff_adjust_symndx
5291 #define coff_adjust_symndx NULL
5294 #ifndef coff_link_add_one_symbol
5295 #define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol
5298 #ifndef coff_link_output_has_begun
5301 coff_link_output_has_begun (bfd
* abfd
,
5302 struct coff_final_link_info
* info ATTRIBUTE_UNUSED
)
5304 return abfd
->output_has_begun
;
5308 #ifndef coff_final_link_postscript
5311 coff_final_link_postscript (bfd
* abfd ATTRIBUTE_UNUSED
,
5312 struct coff_final_link_info
* pfinfo ATTRIBUTE_UNUSED
)
5318 #ifndef coff_SWAP_aux_in
5319 #define coff_SWAP_aux_in coff_swap_aux_in
5321 #ifndef coff_SWAP_sym_in
5322 #define coff_SWAP_sym_in coff_swap_sym_in
5324 #ifndef coff_SWAP_lineno_in
5325 #define coff_SWAP_lineno_in coff_swap_lineno_in
5327 #ifndef coff_SWAP_aux_out
5328 #define coff_SWAP_aux_out coff_swap_aux_out
5330 #ifndef coff_SWAP_sym_out
5331 #define coff_SWAP_sym_out coff_swap_sym_out
5333 #ifndef coff_SWAP_lineno_out
5334 #define coff_SWAP_lineno_out coff_swap_lineno_out
5336 #ifndef coff_SWAP_reloc_out
5337 #define coff_SWAP_reloc_out coff_swap_reloc_out
5339 #ifndef coff_SWAP_filehdr_out
5340 #define coff_SWAP_filehdr_out coff_swap_filehdr_out
5342 #ifndef coff_SWAP_aouthdr_out
5343 #define coff_SWAP_aouthdr_out coff_swap_aouthdr_out
5345 #ifndef coff_SWAP_scnhdr_out
5346 #define coff_SWAP_scnhdr_out coff_swap_scnhdr_out
5348 #ifndef coff_SWAP_reloc_in
5349 #define coff_SWAP_reloc_in coff_swap_reloc_in
5351 #ifndef coff_SWAP_filehdr_in
5352 #define coff_SWAP_filehdr_in coff_swap_filehdr_in
5354 #ifndef coff_SWAP_aouthdr_in
5355 #define coff_SWAP_aouthdr_in coff_swap_aouthdr_in
5357 #ifndef coff_SWAP_scnhdr_in
5358 #define coff_SWAP_scnhdr_in coff_swap_scnhdr_in
5361 static bfd_coff_backend_data bfd_coff_std_swap_table ATTRIBUTE_UNUSED
=
5363 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
5364 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
5365 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5366 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
5367 coff_SWAP_scnhdr_out
,
5368 FILHSZ
, AOUTSZ
, SCNHSZ
, SYMESZ
, AUXESZ
, RELSZ
, LINESZ
, FILNMLEN
,
5369 #ifdef COFF_LONG_FILENAMES
5374 COFF_DEFAULT_LONG_SECTION_NAMES
,
5375 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5376 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5381 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5386 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5387 coff_SWAP_reloc_in
, coff_bad_format_hook
, coff_set_arch_mach_hook
,
5388 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5389 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5390 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5391 coff_classify_symbol
, coff_compute_section_file_positions
,
5392 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5393 coff_adjust_symndx
, coff_link_add_one_symbol
,
5394 coff_link_output_has_begun
, coff_final_link_postscript
,
5399 /* COFF0 differs in file/section header size and relocation entry size. */
5401 static bfd_coff_backend_data ticoff0_swap_table
=
5403 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
5404 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
5405 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5406 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
5407 coff_SWAP_scnhdr_out
,
5408 FILHSZ_V0
, AOUTSZ
, SCNHSZ_V01
, SYMESZ
, AUXESZ
, RELSZ_V0
, LINESZ
, FILNMLEN
,
5409 #ifdef COFF_LONG_FILENAMES
5414 COFF_DEFAULT_LONG_SECTION_NAMES
,
5415 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5416 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5421 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5426 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5427 coff_SWAP_reloc_in
, ticoff0_bad_format_hook
, coff_set_arch_mach_hook
,
5428 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5429 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5430 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5431 coff_classify_symbol
, coff_compute_section_file_positions
,
5432 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5433 coff_adjust_symndx
, coff_link_add_one_symbol
,
5434 coff_link_output_has_begun
, coff_final_link_postscript
,
5440 /* COFF1 differs in section header size. */
5442 static bfd_coff_backend_data ticoff1_swap_table
=
5444 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
5445 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
5446 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5447 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
5448 coff_SWAP_scnhdr_out
,
5449 FILHSZ
, AOUTSZ
, SCNHSZ_V01
, SYMESZ
, AUXESZ
, RELSZ
, LINESZ
, FILNMLEN
,
5450 #ifdef COFF_LONG_FILENAMES
5455 COFF_DEFAULT_LONG_SECTION_NAMES
,
5456 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5457 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5462 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5467 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5468 coff_SWAP_reloc_in
, ticoff1_bad_format_hook
, coff_set_arch_mach_hook
,
5469 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5470 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5471 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5472 coff_classify_symbol
, coff_compute_section_file_positions
,
5473 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5474 coff_adjust_symndx
, coff_link_add_one_symbol
,
5475 coff_link_output_has_begun
, coff_final_link_postscript
,
5476 bfd_pe_print_pdata
/* huh */
5480 #ifndef coff_close_and_cleanup
5481 #define coff_close_and_cleanup _bfd_generic_close_and_cleanup
5484 #ifndef coff_bfd_free_cached_info
5485 #define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
5488 #ifndef coff_get_section_contents
5489 #define coff_get_section_contents _bfd_generic_get_section_contents
5492 #ifndef coff_bfd_copy_private_symbol_data
5493 #define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data
5496 #ifndef coff_bfd_copy_private_header_data
5497 #define coff_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data
5500 #ifndef coff_bfd_copy_private_section_data
5501 #define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data
5504 #ifndef coff_bfd_copy_private_bfd_data
5505 #define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
5508 #ifndef coff_bfd_merge_private_bfd_data
5509 #define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
5512 #ifndef coff_bfd_set_private_flags
5513 #define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
5516 #ifndef coff_bfd_print_private_bfd_data
5517 #define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
5520 #ifndef coff_bfd_is_local_label_name
5521 #define coff_bfd_is_local_label_name _bfd_coff_is_local_label_name
5524 #ifndef coff_bfd_is_target_special_symbol
5525 #define coff_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
5528 #ifndef coff_read_minisymbols
5529 #define coff_read_minisymbols _bfd_generic_read_minisymbols
5532 #ifndef coff_minisymbol_to_symbol
5533 #define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
5536 /* The reloc lookup routine must be supplied by each individual COFF
5538 #ifndef coff_bfd_reloc_type_lookup
5539 #define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
5541 #ifndef coff_bfd_reloc_name_lookup
5542 #define coff_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
5545 #ifndef coff_bfd_get_relocated_section_contents
5546 #define coff_bfd_get_relocated_section_contents \
5547 bfd_generic_get_relocated_section_contents
5550 #ifndef coff_bfd_relax_section
5551 #define coff_bfd_relax_section bfd_generic_relax_section
5554 #ifndef coff_bfd_gc_sections
5555 #define coff_bfd_gc_sections bfd_generic_gc_sections
5558 #ifndef coff_bfd_merge_sections
5559 #define coff_bfd_merge_sections bfd_generic_merge_sections
5562 #ifndef coff_bfd_is_group_section
5563 #define coff_bfd_is_group_section bfd_generic_is_group_section
5566 #ifndef coff_bfd_discard_group
5567 #define coff_bfd_discard_group bfd_generic_discard_group
5570 #ifndef coff_section_already_linked
5571 #define coff_section_already_linked \
5572 _bfd_generic_section_already_linked
5575 #define CREATE_BIG_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5576 const bfd_target VAR = \
5579 bfd_target_coff_flavour, \
5580 BFD_ENDIAN_BIG, /* Data byte order is big. */ \
5581 BFD_ENDIAN_BIG, /* Header byte order is big. */ \
5582 /* object flags */ \
5583 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5584 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5585 /* section flags */ \
5586 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5587 UNDER, /* Leading symbol underscore. */ \
5588 '/', /* AR_pad_char. */ \
5589 15, /* AR_max_namelen. */ \
5591 /* Data conversion functions. */ \
5592 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5593 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5594 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5596 /* Header conversion functions. */ \
5597 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5598 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5599 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5601 /* bfd_check_format. */ \
5602 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5603 _bfd_dummy_target }, \
5604 /* bfd_set_format. */ \
5605 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
5606 /* bfd_write_contents. */ \
5607 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5610 BFD_JUMP_TABLE_GENERIC (coff), \
5611 BFD_JUMP_TABLE_COPY (coff), \
5612 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5613 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5614 BFD_JUMP_TABLE_SYMBOLS (coff), \
5615 BFD_JUMP_TABLE_RELOCS (coff), \
5616 BFD_JUMP_TABLE_WRITE (coff), \
5617 BFD_JUMP_TABLE_LINK (coff), \
5618 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5625 #define CREATE_BIGHDR_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5626 const bfd_target VAR = \
5629 bfd_target_coff_flavour, \
5630 BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \
5631 BFD_ENDIAN_BIG, /* Header byte order is big. */ \
5632 /* object flags */ \
5633 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5634 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5635 /* section flags */ \
5636 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5637 UNDER, /* Leading symbol underscore. */ \
5638 '/', /* AR_pad_char. */ \
5639 15, /* AR_max_namelen. */ \
5641 /* Data conversion functions. */ \
5642 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5643 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5644 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5646 /* Header conversion functions. */ \
5647 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5648 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5649 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5651 /* bfd_check_format. */ \
5652 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5653 _bfd_dummy_target }, \
5654 /* bfd_set_format. */ \
5655 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
5656 /* bfd_write_contents. */ \
5657 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5660 BFD_JUMP_TABLE_GENERIC (coff), \
5661 BFD_JUMP_TABLE_COPY (coff), \
5662 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5663 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5664 BFD_JUMP_TABLE_SYMBOLS (coff), \
5665 BFD_JUMP_TABLE_RELOCS (coff), \
5666 BFD_JUMP_TABLE_WRITE (coff), \
5667 BFD_JUMP_TABLE_LINK (coff), \
5668 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5675 #define CREATE_LITTLE_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5676 const bfd_target VAR = \
5679 bfd_target_coff_flavour, \
5680 BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \
5681 BFD_ENDIAN_LITTLE, /* Header byte order is little. */ \
5682 /* object flags */ \
5683 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5684 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5685 /* section flags */ \
5686 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5687 UNDER, /* Leading symbol underscore. */ \
5688 '/', /* AR_pad_char. */ \
5689 15, /* AR_max_namelen. */ \
5691 /* Data conversion functions. */ \
5692 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
5693 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
5694 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
5695 /* Header conversion functions. */ \
5696 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
5697 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
5698 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
5699 /* bfd_check_format. */ \
5700 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5701 _bfd_dummy_target }, \
5702 /* bfd_set_format. */ \
5703 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
5704 /* bfd_write_contents. */ \
5705 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5708 BFD_JUMP_TABLE_GENERIC (coff), \
5709 BFD_JUMP_TABLE_COPY (coff), \
5710 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5711 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5712 BFD_JUMP_TABLE_SYMBOLS (coff), \
5713 BFD_JUMP_TABLE_RELOCS (coff), \
5714 BFD_JUMP_TABLE_WRITE (coff), \
5715 BFD_JUMP_TABLE_LINK (coff), \
5716 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \