1 /* Support for the generic parts of most COFF variants, for BFD.
2 Copyright 1990-2013 Free Software Foundation, Inc.
3 Written by Cygnus Support.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
22 /* Most of this hacked by Steve Chamberlain,
28 BFD supports a number of different flavours of coff format.
29 The major differences between formats are the sizes and
30 alignments of fields in structures on disk, and the occasional
33 Coff in all its varieties is implemented with a few common
34 files and a number of implementation specific files. For
35 example, The 88k bcs coff format is implemented in the file
36 @file{coff-m88k.c}. This file @code{#include}s
37 @file{coff/m88k.h} which defines the external structure of the
38 coff format for the 88k, and @file{coff/internal.h} which
39 defines the internal structure. @file{coff-m88k.c} also
40 defines the relocations used by the 88k format
43 The Intel i960 processor version of coff is implemented in
44 @file{coff-i960.c}. This file has the same structure as
45 @file{coff-m88k.c}, except that it includes @file{coff/i960.h}
46 rather than @file{coff-m88k.h}.
49 Porting to a new version of coff
51 The recommended method is to select from the existing
52 implementations the version of coff which is most like the one
53 you want to use. For example, we'll say that i386 coff is
54 the one you select, and that your coff flavour is called foo.
55 Copy @file{i386coff.c} to @file{foocoff.c}, copy
56 @file{../include/coff/i386.h} to @file{../include/coff/foo.h},
57 and add the lines to @file{targets.c} and @file{Makefile.in}
58 so that your new back end is used. Alter the shapes of the
59 structures in @file{../include/coff/foo.h} so that they match
60 what you need. You will probably also have to add
61 @code{#ifdef}s to the code in @file{coff/internal.h} and
62 @file{coffcode.h} if your version of coff is too wild.
64 You can verify that your new BFD backend works quite simply by
65 building @file{objdump} from the @file{binutils} directory,
66 and making sure that its version of what's going on and your
67 host system's idea (assuming it has the pretty standard coff
68 dump utility, usually called @code{att-dump} or just
69 @code{dump}) are the same. Then clean up your code, and send
70 what you've done to Cygnus. Then your stuff will be in the
71 next release, and you won't have to keep integrating it.
74 How the coff backend works
79 The Coff backend is split into generic routines that are
80 applicable to any Coff target and routines that are specific
81 to a particular target. The target-specific routines are
82 further split into ones which are basically the same for all
83 Coff targets except that they use the external symbol format
84 or use different values for certain constants.
86 The generic routines are in @file{coffgen.c}. These routines
87 work for any Coff target. They use some hooks into the target
88 specific code; the hooks are in a @code{bfd_coff_backend_data}
89 structure, one of which exists for each target.
91 The essentially similar target-specific routines are in
92 @file{coffcode.h}. This header file includes executable C code.
93 The various Coff targets first include the appropriate Coff
94 header file, make any special defines that are needed, and
95 then include @file{coffcode.h}.
97 Some of the Coff targets then also have additional routines in
98 the target source file itself.
100 For example, @file{coff-i960.c} includes
101 @file{coff/internal.h} and @file{coff/i960.h}. It then
102 defines a few constants, such as @code{I960}, and includes
103 @file{coffcode.h}. Since the i960 has complex relocation
104 types, @file{coff-i960.c} also includes some code to
105 manipulate the i960 relocs. This code is not in
106 @file{coffcode.h} because it would not be used by any other
110 Coff long section names
112 In the standard Coff object format, section names are limited to
113 the eight bytes available in the @code{s_name} field of the
114 @code{SCNHDR} section header structure. The format requires the
115 field to be NUL-padded, but not necessarily NUL-terminated, so
116 the longest section names permitted are a full eight characters.
118 The Microsoft PE variants of the Coff object file format add
119 an extension to support the use of long section names. This
120 extension is defined in section 4 of the Microsoft PE/COFF
121 specification (rev 8.1). If a section name is too long to fit
122 into the section header's @code{s_name} field, it is instead
123 placed into the string table, and the @code{s_name} field is
124 filled with a slash ("/") followed by the ASCII decimal
125 representation of the offset of the full name relative to the
128 Note that this implies that the extension can only be used in object
129 files, as executables do not contain a string table. The standard
130 specifies that long section names from objects emitted into executable
131 images are to be truncated.
133 However, as a GNU extension, BFD can generate executable images
134 that contain a string table and long section names. This
135 would appear to be technically valid, as the standard only says
136 that Coff debugging information is deprecated, not forbidden,
137 and in practice it works, although some tools that parse PE files
138 expecting the MS standard format may become confused; @file{PEview} is
141 The functionality is supported in BFD by code implemented under
142 the control of the macro @code{COFF_LONG_SECTION_NAMES}. If not
143 defined, the format does not support long section names in any way.
144 If defined, it is used to initialise a flag,
145 @code{_bfd_coff_long_section_names}, and a hook function pointer,
146 @code{_bfd_coff_set_long_section_names}, in the Coff backend data
147 structure. The flag controls the generation of long section names
148 in output BFDs at runtime; if it is false, as it will be by default
149 when generating an executable image, long section names are truncated;
150 if true, the long section names extension is employed. The hook
151 points to a function that allows the value of the flag to be altered
152 at runtime, on formats that support long section names at all; on
153 other formats it points to a stub that returns an error indication.
155 With input BFDs, the flag is set according to whether any long section
156 names are detected while reading the section headers. For a completely
157 new BFD, the flag is set to the default for the target format. This
158 information can be used by a client of the BFD library when deciding
159 what output format to generate, and means that a BFD that is opened
160 for read and subsequently converted to a writeable BFD and modified
161 in-place will retain whatever format it had on input.
163 If @code{COFF_LONG_SECTION_NAMES} is simply defined (blank), or is
164 defined to the value "1", then long section names are enabled by
165 default; if it is defined to the value zero, they are disabled by
166 default (but still accepted in input BFDs). The header @file{coffcode.h}
167 defines a macro, @code{COFF_DEFAULT_LONG_SECTION_NAMES}, which is
168 used in the backends to initialise the backend data structure fields
169 appropriately; see the comments for further detail.
174 Each flavour of coff supported in BFD has its own header file
175 describing the external layout of the structures. There is also
176 an internal description of the coff layout, in
177 @file{coff/internal.h}. A major function of the
178 coff backend is swapping the bytes and twiddling the bits to
179 translate the external form of the structures into the normal
180 internal form. This is all performed in the
181 @code{bfd_swap}_@i{thing}_@i{direction} routines. Some
182 elements are different sizes between different versions of
183 coff; it is the duty of the coff version specific include file
184 to override the definitions of various packing routines in
185 @file{coffcode.h}. E.g., the size of line number entry in coff is
186 sometimes 16 bits, and sometimes 32 bits. @code{#define}ing
187 @code{PUT_LNSZ_LNNO} and @code{GET_LNSZ_LNNO} will select the
188 correct one. No doubt, some day someone will find a version of
189 coff which has a varying field size not catered to at the
190 moment. To port BFD, that person will have to add more @code{#defines}.
191 Three of the bit twiddling routines are exported to
192 @code{gdb}; @code{coff_swap_aux_in}, @code{coff_swap_sym_in}
193 and @code{coff_swap_lineno_in}. @code{GDB} reads the symbol
194 table on its own, but uses BFD to fix things up. More of the
195 bit twiddlers are exported for @code{gas};
196 @code{coff_swap_aux_out}, @code{coff_swap_sym_out},
197 @code{coff_swap_lineno_out}, @code{coff_swap_reloc_out},
198 @code{coff_swap_filehdr_out}, @code{coff_swap_aouthdr_out},
199 @code{coff_swap_scnhdr_out}. @code{Gas} currently keeps track
200 of all the symbol table and reloc drudgery itself, thereby
201 saving the internal BFD overhead, but uses BFD to swap things
202 on the way out, making cross ports much safer. Doing so also
203 allows BFD (and thus the linker) to use the same header files
204 as @code{gas}, which makes one avenue to disaster disappear.
209 The simple canonical form for symbols used by BFD is not rich
210 enough to keep all the information available in a coff symbol
211 table. The back end gets around this problem by keeping the original
212 symbol table around, "behind the scenes".
214 When a symbol table is requested (through a call to
215 @code{bfd_canonicalize_symtab}), a request gets through to
216 @code{coff_get_normalized_symtab}. This reads the symbol table from
217 the coff file and swaps all the structures inside into the
218 internal form. It also fixes up all the pointers in the table
219 (represented in the file by offsets from the first symbol in
220 the table) into physical pointers to elements in the new
221 internal table. This involves some work since the meanings of
222 fields change depending upon context: a field that is a
223 pointer to another structure in the symbol table at one moment
224 may be the size in bytes of a structure at the next. Another
225 pass is made over the table. All symbols which mark file names
226 (<<C_FILE>> symbols) are modified so that the internal
227 string points to the value in the auxent (the real filename)
228 rather than the normal text associated with the symbol
231 At this time the symbol names are moved around. Coff stores
232 all symbols less than nine characters long physically
233 within the symbol table; longer strings are kept at the end of
234 the file in the string table. This pass moves all strings
235 into memory and replaces them with pointers to the strings.
237 The symbol table is massaged once again, this time to create
238 the canonical table used by the BFD application. Each symbol
239 is inspected in turn, and a decision made (using the
240 @code{sclass} field) about the various flags to set in the
241 @code{asymbol}. @xref{Symbols}. The generated canonical table
242 shares strings with the hidden internal symbol table.
244 Any linenumbers are read from the coff file too, and attached
245 to the symbols which own the functions the linenumbers belong to.
250 Writing a symbol to a coff file which didn't come from a coff
251 file will lose any debugging information. The @code{asymbol}
252 structure remembers the BFD from which the symbol was taken, and on
253 output the back end makes sure that the same destination target as
254 source target is present.
256 When the symbols have come from a coff file then all the
257 debugging information is preserved.
259 Symbol tables are provided for writing to the back end in a
260 vector of pointers to pointers. This allows applications like
261 the linker to accumulate and output large symbol tables
262 without having to do too much byte copying.
264 This function runs through the provided symbol table and
265 patches each symbol marked as a file place holder
266 (@code{C_FILE}) to point to the next file place holder in the
267 list. It also marks each @code{offset} field in the list with
268 the offset from the first symbol of the current symbol.
270 Another function of this procedure is to turn the canonical
271 value form of BFD into the form used by coff. Internally, BFD
272 expects symbol values to be offsets from a section base; so a
273 symbol physically at 0x120, but in a section starting at
274 0x100, would have the value 0x20. Coff expects symbols to
275 contain their final value, so symbols have their values
276 changed at this point to reflect their sum with their owning
277 section. This transformation uses the
278 <<output_section>> field of the @code{asymbol}'s
279 @code{asection} @xref{Sections}.
281 o <<coff_mangle_symbols>>
283 This routine runs though the provided symbol table and uses
284 the offsets generated by the previous pass and the pointers
285 generated when the symbol table was read in to create the
286 structured hierarchy required by coff. It changes each pointer
287 to a symbol into the index into the symbol table of the asymbol.
289 o <<coff_write_symbols>>
291 This routine runs through the symbol table and patches up the
292 symbols from their internal form into the coff way, calls the
293 bit twiddlers, and writes out the table to the file.
302 The hidden information for an <<asymbol>> is described in a
303 <<combined_entry_type>>:
307 .typedef struct coff_ptr_struct
309 . {* Remembers the offset from the first symbol in the file for
310 . this symbol. Generated by coff_renumber_symbols. *}
311 . unsigned int offset;
313 . {* Should the value of this symbol be renumbered. Used for
314 . XCOFF C_BSTAT symbols. Set by coff_slurp_symbol_table. *}
315 . unsigned int fix_value : 1;
317 . {* Should the tag field of this symbol be renumbered.
318 . Created by coff_pointerize_aux. *}
319 . unsigned int fix_tag : 1;
321 . {* Should the endidx field of this symbol be renumbered.
322 . Created by coff_pointerize_aux. *}
323 . unsigned int fix_end : 1;
325 . {* Should the x_csect.x_scnlen field be renumbered.
326 . Created by coff_pointerize_aux. *}
327 . unsigned int fix_scnlen : 1;
329 . {* Fix up an XCOFF C_BINCL/C_EINCL symbol. The value is the
330 . index into the line number entries. Set by coff_slurp_symbol_table. *}
331 . unsigned int fix_line : 1;
333 . {* The container for the symbol structure as read and translated
337 . union internal_auxent auxent;
338 . struct internal_syment syment;
340 .} combined_entry_type;
343 .{* Each canonical asymbol really looks like this: *}
345 .typedef struct coff_symbol_struct
347 . {* The actual symbol which the rest of BFD works with *}
350 . {* A pointer to the hidden information for this symbol *}
351 . combined_entry_type *native;
353 . {* A pointer to the linenumber information for this symbol *}
354 . struct lineno_cache_entry *lineno;
356 . {* Have the line numbers been relocated yet ? *}
357 . bfd_boolean done_lineno;
362 #include "libiberty.h"
367 #include "coffswap.h"
370 #define STRING_SIZE_SIZE 4
372 #define DOT_DEBUG ".debug"
373 #define DOT_ZDEBUG ".zdebug"
374 #define GNU_LINKONCE_WI ".gnu.linkonce.wi."
375 #define GNU_LINKONCE_WT ".gnu.linkonce.wt."
376 #define DOT_RELOC ".reloc"
378 #if defined (COFF_LONG_SECTION_NAMES)
379 /* Needed to expand the inputs to BLANKOR1TOODD. */
380 #define COFFLONGSECTIONCATHELPER(x,y) x ## y
381 /* If the input macro Y is blank or '1', return an odd number; if it is
382 '0', return an even number. Result undefined in all other cases. */
383 #define BLANKOR1TOODD(y) COFFLONGSECTIONCATHELPER(1,y)
384 /* Defined to numerical 0 or 1 according to whether generation of long
385 section names is disabled or enabled by default. */
386 #define COFF_ENABLE_LONG_SECTION_NAMES (BLANKOR1TOODD(COFF_LONG_SECTION_NAMES) & 1)
387 /* Where long section names are supported, we allow them to be enabled
388 and disabled at runtime, so select an appropriate hook function for
389 _bfd_coff_set_long_section_names. */
390 #define COFF_LONG_SECTION_NAMES_SETTER bfd_coff_set_long_section_names_allowed
391 #else /* !defined (COFF_LONG_SECTION_NAMES) */
392 /* If long section names are not supported, this stub disallows any
393 attempt to enable them at run-time. */
394 #define COFF_LONG_SECTION_NAMES_SETTER bfd_coff_set_long_section_names_disallowed
395 #endif /* defined (COFF_LONG_SECTION_NAMES) */
397 /* Define a macro that can be used to initialise both the fields relating
398 to long section names in the backend data struct simultaneously. */
399 #if COFF_ENABLE_LONG_SECTION_NAMES
400 #define COFF_DEFAULT_LONG_SECTION_NAMES (TRUE), COFF_LONG_SECTION_NAMES_SETTER
401 #else /* !COFF_ENABLE_LONG_SECTION_NAMES */
402 #define COFF_DEFAULT_LONG_SECTION_NAMES (FALSE), COFF_LONG_SECTION_NAMES_SETTER
403 #endif /* COFF_ENABLE_LONG_SECTION_NAMES */
405 #if defined (COFF_LONG_SECTION_NAMES)
406 static bfd_boolean bfd_coff_set_long_section_names_allowed
408 #else /* !defined (COFF_LONG_SECTION_NAMES) */
409 static bfd_boolean bfd_coff_set_long_section_names_disallowed
411 #endif /* defined (COFF_LONG_SECTION_NAMES) */
412 static long sec_to_styp_flags
413 (const char *, flagword);
414 static bfd_boolean styp_to_sec_flags
415 (bfd *, void *, const char *, asection *, flagword *);
416 static bfd_boolean coff_bad_format_hook
418 static void coff_set_custom_section_alignment
419 (bfd *, asection *, const struct coff_section_alignment_entry *,
421 static bfd_boolean coff_new_section_hook
423 static bfd_boolean coff_set_arch_mach_hook
425 static bfd_boolean coff_write_relocs
427 static bfd_boolean coff_set_flags
428 (bfd *, unsigned int *, unsigned short *);
429 static bfd_boolean coff_set_arch_mach
430 (bfd *, enum bfd_architecture, unsigned long) ATTRIBUTE_UNUSED;
431 static bfd_boolean coff_compute_section_file_positions
433 static bfd_boolean coff_write_object_contents
434 (bfd *) ATTRIBUTE_UNUSED;
435 static bfd_boolean coff_set_section_contents
436 (bfd *, asection *, const void *, file_ptr, bfd_size_type);
437 static void * buy_and_read
438 (bfd *, file_ptr, bfd_size_type);
439 static bfd_boolean coff_slurp_line_table
441 static bfd_boolean coff_slurp_symbol_table
443 static enum coff_symbol_classification coff_classify_symbol
444 (bfd *, struct internal_syment *);
445 static bfd_boolean coff_slurp_reloc_table
446 (bfd *, asection *, asymbol **);
447 static long coff_canonicalize_reloc
448 (bfd *, asection *, arelent **, asymbol **);
449 #ifndef coff_mkobject_hook
450 static void * coff_mkobject_hook
451 (bfd *, void *, void *);
454 static flagword handle_COMDAT
455 (bfd *, flagword, void *, const char *, asection *);
457 #ifdef COFF_IMAGE_WITH_PE
458 static bfd_boolean coff_read_word
459 (bfd *, unsigned int *);
460 static unsigned int coff_compute_checksum
462 static bfd_boolean coff_apply_checksum
466 static bfd_boolean ticoff0_bad_format_hook
468 static bfd_boolean ticoff1_bad_format_hook
472 /* void warning(); */
474 #if defined (COFF_LONG_SECTION_NAMES)
476 bfd_coff_set_long_section_names_allowed (bfd *abfd, int enable)
478 coff_backend_info (abfd)->_bfd_coff_long_section_names = enable;
481 #else /* !defined (COFF_LONG_SECTION_NAMES) */
483 bfd_coff_set_long_section_names_disallowed (bfd *abfd, int enable)
489 #endif /* defined (COFF_LONG_SECTION_NAMES) */
491 /* Return a word with STYP_* (scnhdr.s_flags) flags set to represent
492 the incoming SEC_* flags. The inverse of this function is
493 styp_to_sec_flags(). NOTE: If you add to/change this routine, you
494 should probably mirror the changes in styp_to_sec_flags(). */
498 /* Macros for setting debugging flags. */
501 #define STYP_XCOFF_DEBUG STYP_DEBUG
503 #define STYP_XCOFF_DEBUG STYP_INFO
506 #ifdef COFF_ALIGN_IN_S_FLAGS
507 #define STYP_DEBUG_INFO STYP_DSECT
509 #define STYP_DEBUG_INFO STYP_INFO
513 sec_to_styp_flags (const char *sec_name, flagword sec_flags)
517 if (!strcmp (sec_name, _TEXT))
519 styp_flags = STYP_TEXT;
521 else if (!strcmp (sec_name, _DATA))
523 styp_flags = STYP_DATA;
525 else if (!strcmp (sec_name, _BSS))
527 styp_flags = STYP_BSS;
530 else if (!strcmp (sec_name, _COMMENT))
532 styp_flags = STYP_INFO;
533 #endif /* _COMMENT */
536 else if (!strcmp (sec_name, _LIB))
538 styp_flags = STYP_LIB;
542 else if (!strcmp (sec_name, _LIT))
544 styp_flags = STYP_LIT;
547 else if (CONST_STRNEQ (sec_name, DOT_DEBUG)
548 || CONST_STRNEQ (sec_name, DOT_ZDEBUG))
550 /* Handle the XCOFF debug section and DWARF2 debug sections. */
552 styp_flags = STYP_XCOFF_DEBUG;
554 styp_flags = STYP_DEBUG_INFO;
556 else if (CONST_STRNEQ (sec_name, ".stab"))
558 styp_flags = STYP_DEBUG_INFO;
560 #ifdef COFF_LONG_SECTION_NAMES
561 else if (CONST_STRNEQ (sec_name, GNU_LINKONCE_WI)
562 || CONST_STRNEQ (sec_name, GNU_LINKONCE_WT))
564 styp_flags = STYP_DEBUG_INFO;
568 else if (!strcmp (sec_name, _PAD))
570 styp_flags = STYP_PAD;
572 else if (!strcmp (sec_name, _LOADER))
574 styp_flags = STYP_LOADER;
576 else if (!strcmp (sec_name, _EXCEPT))
578 styp_flags = STYP_EXCEPT;
580 else if (!strcmp (sec_name, _TYPCHK))
582 styp_flags = STYP_TYPCHK;
584 else if (sec_flags & SEC_DEBUGGING)
588 for (i = 0; i < XCOFF_DWSECT_NBR_NAMES; i++)
589 if (!strcmp (sec_name, xcoff_dwsect_names[i].name))
591 styp_flags = STYP_DWARF | xcoff_dwsect_names[i].flag;
596 /* Try and figure out what it should be */
597 else if (sec_flags & SEC_CODE)
599 styp_flags = STYP_TEXT;
601 else if (sec_flags & SEC_DATA)
603 styp_flags = STYP_DATA;
605 else if (sec_flags & SEC_READONLY)
607 #ifdef STYP_LIT /* 29k readonly text/data section */
608 styp_flags = STYP_LIT;
610 styp_flags = STYP_TEXT;
611 #endif /* STYP_LIT */
613 else if (sec_flags & SEC_LOAD)
615 styp_flags = STYP_TEXT;
617 else if (sec_flags & SEC_ALLOC)
619 styp_flags = STYP_BSS;
623 if (sec_flags & SEC_TIC54X_CLINK)
624 styp_flags |= STYP_CLINK;
628 if (sec_flags & SEC_TIC54X_BLOCK)
629 styp_flags |= STYP_BLOCK;
633 if ((sec_flags & (SEC_NEVER_LOAD | SEC_COFF_SHARED_LIBRARY)) != 0)
634 styp_flags |= STYP_NOLOAD;
640 #else /* COFF_WITH_PE */
642 /* The PE version; see above for the general comments. The non-PE
643 case seems to be more guessing, and breaks PE format; specifically,
644 .rdata is readonly, but it sure ain't text. Really, all this
645 should be set up properly in gas (or whatever assembler is in use),
646 and honor whatever objcopy/strip, etc. sent us as input. */
649 sec_to_styp_flags (const char *sec_name, flagword sec_flags)
652 bfd_boolean is_dbg = FALSE;
654 if (CONST_STRNEQ (sec_name, DOT_DEBUG)
655 || CONST_STRNEQ (sec_name, DOT_ZDEBUG)
656 #ifdef COFF_LONG_SECTION_NAMES
657 || CONST_STRNEQ (sec_name, GNU_LINKONCE_WI)
658 || CONST_STRNEQ (sec_name, GNU_LINKONCE_WT)
660 || CONST_STRNEQ (sec_name, ".stab"))
663 /* caution: there are at least three groups of symbols that have
664 very similar bits and meanings: IMAGE_SCN*, SEC_*, and STYP_*.
665 SEC_* are the BFD internal flags, used for generic BFD
666 information. STYP_* are the COFF section flags which appear in
667 COFF files. IMAGE_SCN_* are the PE section flags which appear in
668 PE files. The STYP_* flags and the IMAGE_SCN_* flags overlap,
669 but there are more IMAGE_SCN_* flags. */
671 /* FIXME: There is no gas syntax to specify the debug section flag. */
674 sec_flags &= (SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD
675 | SEC_LINK_DUPLICATES_SAME_CONTENTS
676 | SEC_LINK_DUPLICATES_SAME_SIZE);
677 sec_flags |= SEC_DEBUGGING | SEC_READONLY;
683 if ((sec_flags & SEC_CODE) != 0)
684 styp_flags |= IMAGE_SCN_CNT_CODE;
685 if ((sec_flags & (SEC_DATA | SEC_DEBUGGING)) != 0)
686 styp_flags |= IMAGE_SCN_CNT_INITIALIZED_DATA;
687 if ((sec_flags & SEC_ALLOC) != 0 && (sec_flags & SEC_LOAD) == 0)
688 styp_flags |= IMAGE_SCN_CNT_UNINITIALIZED_DATA; /* ==STYP_BSS */
690 /* skip constRUCTOR */
692 if ((sec_flags & SEC_IS_COMMON) != 0)
693 styp_flags |= IMAGE_SCN_LNK_COMDAT;
694 if ((sec_flags & SEC_DEBUGGING) != 0)
695 styp_flags |= IMAGE_SCN_MEM_DISCARDABLE;
696 if ((sec_flags & SEC_EXCLUDE) != 0 && !is_dbg)
697 styp_flags |= IMAGE_SCN_LNK_REMOVE;
698 if ((sec_flags & SEC_NEVER_LOAD) != 0 && !is_dbg)
699 styp_flags |= IMAGE_SCN_LNK_REMOVE;
702 if (sec_flags & SEC_LINK_ONCE)
703 styp_flags |= IMAGE_SCN_LNK_COMDAT;
705 & (SEC_LINK_DUPLICATES_DISCARD | SEC_LINK_DUPLICATES_SAME_CONTENTS
706 | SEC_LINK_DUPLICATES_SAME_SIZE)) != 0)
707 styp_flags |= IMAGE_SCN_LNK_COMDAT;
709 /* skip LINKER_CREATED */
711 if ((sec_flags & SEC_COFF_NOREAD) == 0)
712 styp_flags |= IMAGE_SCN_MEM_READ; /* Invert NOREAD for read. */
713 if ((sec_flags & SEC_READONLY) == 0)
714 styp_flags |= IMAGE_SCN_MEM_WRITE; /* Invert READONLY for write. */
715 if (sec_flags & SEC_CODE)
716 styp_flags |= IMAGE_SCN_MEM_EXECUTE; /* CODE->EXECUTE. */
717 if (sec_flags & SEC_COFF_SHARED)
718 styp_flags |= IMAGE_SCN_MEM_SHARED; /* Shared remains meaningful. */
723 #endif /* COFF_WITH_PE */
725 /* Return a word with SEC_* flags set to represent the incoming STYP_*
726 flags (from scnhdr.s_flags). The inverse of this function is
727 sec_to_styp_flags(). NOTE: If you add to/change this routine, you
728 should probably mirror the changes in sec_to_styp_flags(). */
733 styp_to_sec_flags (bfd *abfd ATTRIBUTE_UNUSED,
736 asection *section ATTRIBUTE_UNUSED,
739 struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
740 long styp_flags = internal_s->s_flags;
741 flagword sec_flags = 0;
744 if (styp_flags & STYP_BLOCK)
745 sec_flags |= SEC_TIC54X_BLOCK;
749 if (styp_flags & STYP_CLINK)
750 sec_flags |= SEC_TIC54X_CLINK;
754 if (styp_flags & STYP_NOLOAD)
755 sec_flags |= SEC_NEVER_LOAD;
756 #endif /* STYP_NOLOAD */
758 /* For 386 COFF, at least, an unloadable text or data section is
759 actually a shared library section. */
760 if (styp_flags & STYP_TEXT)
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 (styp_flags & STYP_DATA)
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 (styp_flags & STYP_BSS)
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 (styp_flags & STYP_INFO)
785 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
786 defined. coff_compute_section_file_positions uses
787 COFF_PAGE_SIZE to ensure that the low order bits of the
788 section VMA and the file offset match. If we don't know
789 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
790 and demand page loading of the file will fail. */
791 #if defined (COFF_PAGE_SIZE) && !defined (COFF_ALIGN_IN_S_FLAGS)
792 sec_flags |= SEC_DEBUGGING;
795 else if (styp_flags & STYP_PAD)
798 else if (styp_flags & STYP_EXCEPT)
799 sec_flags |= SEC_LOAD;
800 else if (styp_flags & STYP_LOADER)
801 sec_flags |= SEC_LOAD;
802 else if (styp_flags & STYP_TYPCHK)
803 sec_flags |= SEC_LOAD;
804 else if (styp_flags & STYP_DWARF)
805 sec_flags |= SEC_DEBUGGING;
807 else if (strcmp (name, _TEXT) == 0)
809 if (sec_flags & SEC_NEVER_LOAD)
810 sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY;
812 sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC;
814 else if (strcmp (name, _DATA) == 0)
816 if (sec_flags & SEC_NEVER_LOAD)
817 sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY;
819 sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC;
821 else if (strcmp (name, _BSS) == 0)
823 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
824 if (sec_flags & SEC_NEVER_LOAD)
825 sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY;
828 sec_flags |= SEC_ALLOC;
830 else if (CONST_STRNEQ (name, DOT_DEBUG)
831 || CONST_STRNEQ (name, DOT_ZDEBUG)
833 || strcmp (name, _COMMENT) == 0
835 #ifdef COFF_LONG_SECTION_NAMES
836 || CONST_STRNEQ (name, GNU_LINKONCE_WI)
837 || CONST_STRNEQ (name, GNU_LINKONCE_WT)
839 || CONST_STRNEQ (name, ".stab"))
841 #ifdef COFF_PAGE_SIZE
842 sec_flags |= SEC_DEBUGGING;
846 else if (strcmp (name, _LIB) == 0)
850 else if (strcmp (name, _LIT) == 0)
851 sec_flags = SEC_LOAD | SEC_ALLOC | SEC_READONLY;
854 sec_flags |= SEC_ALLOC | SEC_LOAD;
856 #ifdef STYP_LIT /* A29k readonly text/data section type. */
857 if ((styp_flags & STYP_LIT) == STYP_LIT)
858 sec_flags = (SEC_LOAD | SEC_ALLOC | SEC_READONLY);
859 #endif /* STYP_LIT */
861 #ifdef STYP_OTHER_LOAD /* Other loaded sections. */
862 if (styp_flags & STYP_OTHER_LOAD)
863 sec_flags = (SEC_LOAD | SEC_ALLOC);
864 #endif /* STYP_SDATA */
866 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
867 /* As a GNU extension, if the name begins with .gnu.linkonce, we
868 only link a single copy of the section. This is used to support
869 g++. g++ will emit each template expansion in its own section.
870 The symbols will be defined as weak, so that multiple definitions
871 are permitted. The GNU linker extension is to actually discard
872 all but one of the sections. */
873 if (CONST_STRNEQ (name, ".gnu.linkonce"))
874 sec_flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD;
877 if (flags_ptr == NULL)
880 * flags_ptr = sec_flags;
884 #else /* COFF_WITH_PE */
887 handle_COMDAT (bfd * abfd,
893 struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
894 bfd_byte *esymstart, *esym, *esymend;
896 char *target_name = NULL;
898 sec_flags |= SEC_LINK_ONCE;
900 /* Unfortunately, the PE format stores essential information in
901 the symbol table, of all places. We need to extract that
902 information now, so that objdump and the linker will know how
903 to handle the section without worrying about the symbols. We
904 can't call slurp_symtab, because the linker doesn't want the
907 /* COMDAT sections are special. The first symbol is the section
908 symbol, which tells what kind of COMDAT section it is. The
909 second symbol is the "comdat symbol" - the one with the
910 unique name. GNU uses the section symbol for the unique
911 name; MS uses ".text" for every comdat section. Sigh. - DJ */
913 /* This is not mirrored in sec_to_styp_flags(), but there
914 doesn't seem to be a need to, either, and it would at best be
917 if (! _bfd_coff_get_external_symbols (abfd))
920 esymstart = esym = (bfd_byte *) obj_coff_external_syms (abfd);
921 esymend = esym + obj_raw_syment_count (abfd) * bfd_coff_symesz (abfd);
923 while (esym < esymend)
925 struct internal_syment isym;
926 char buf[SYMNMLEN + 1];
929 bfd_coff_swap_sym_in (abfd, esym, & isym);
931 if (sizeof (internal_s->s_name) > SYMNMLEN)
933 /* This case implies that the matching
934 symbol name will be in the string table. */
938 if (isym.n_scnum == section->target_index)
940 /* According to the MSVC documentation, the first
941 TWO entries with the section # are both of
942 interest to us. The first one is the "section
943 symbol" (section name). The second is the comdat
944 symbol name. Here, we've found the first
945 qualifying entry; we distinguish it from the
946 second with a state flag.
948 In the case of gas-generated (at least until that
949 is fixed) .o files, it isn't necessarily the
950 second one. It may be some other later symbol.
952 Since gas also doesn't follow MS conventions and
953 emits the section similar to .text$<name>, where
954 <something> is the name we're looking for, we
955 distinguish the two as follows:
957 If the section name is simply a section name (no
958 $) we presume it's MS-generated, and look at
959 precisely the second symbol for the comdat name.
960 If the section name has a $, we assume it's
961 gas-generated, and look for <something> (whatever
962 follows the $) as the comdat symbol. */
964 /* All 3 branches use this. */
965 symname = _bfd_coff_internal_syment_name (abfd, &isym, buf);
974 /* The first time we've seen the symbol. */
975 union internal_auxent aux;
977 /* If it isn't the stuff we're expecting, die;
978 The MS documentation is vague, but it
979 appears that the second entry serves BOTH
980 as the comdat symbol and the defining
981 symbol record (either C_STAT or C_EXT,
982 possibly with an aux entry with debug
983 information if it's a function.) It
984 appears the only way to find the second one
985 is to count. (On Intel, they appear to be
986 adjacent, but on Alpha, they have been
989 Here, we think we've found the first one,
990 but there's some checking we can do to be
993 if (! ((isym.n_sclass == C_STAT
994 || isym.n_sclass == C_EXT)
995 && BTYPE (isym.n_type) == T_NULL
996 && isym.n_value == 0))
999 /* FIXME LATER: MSVC generates section names
1000 like .text for comdats. Gas generates
1001 names like .text$foo__Fv (in the case of a
1002 function). See comment above for more. */
1004 if (isym.n_sclass == C_STAT && strcmp (name, symname) != 0)
1005 _bfd_error_handler (_("%B: warning: COMDAT symbol '%s' does not match section name '%s'"),
1006 abfd, symname, name);
1010 /* This is the section symbol. */
1011 bfd_coff_swap_aux_in (abfd, (esym + bfd_coff_symesz (abfd)),
1012 isym.n_type, isym.n_sclass,
1013 0, isym.n_numaux, & aux);
1015 target_name = strchr (name, '$');
1016 if (target_name != NULL)
1024 /* FIXME: Microsoft uses NODUPLICATES and
1025 ASSOCIATIVE, but gnu uses ANY and
1026 SAME_SIZE. Unfortunately, gnu doesn't do
1027 the comdat symbols right. So, until we can
1028 fix it to do the right thing, we are
1029 temporarily disabling comdats for the MS
1030 types (they're used in DLLs and C++, but we
1031 don't support *their* C++ libraries anyway
1034 /* Cygwin does not follow the MS style, and
1035 uses ANY and SAME_SIZE where NODUPLICATES
1036 and ASSOCIATIVE should be used. For
1037 Interix, we just do the right thing up
1040 switch (aux.x_scn.x_comdat)
1042 case IMAGE_COMDAT_SELECT_NODUPLICATES:
1043 #ifdef STRICT_PE_FORMAT
1044 sec_flags |= SEC_LINK_DUPLICATES_ONE_ONLY;
1046 sec_flags &= ~SEC_LINK_ONCE;
1050 case IMAGE_COMDAT_SELECT_ANY:
1051 sec_flags |= SEC_LINK_DUPLICATES_DISCARD;
1054 case IMAGE_COMDAT_SELECT_SAME_SIZE:
1055 sec_flags |= SEC_LINK_DUPLICATES_SAME_SIZE;
1058 case IMAGE_COMDAT_SELECT_EXACT_MATCH:
1059 /* Not yet fully implemented ??? */
1060 sec_flags |= SEC_LINK_DUPLICATES_SAME_CONTENTS;
1063 /* debug$S gets this case; other
1066 /* There may be no symbol... we'll search
1067 the whole table... Is this the right
1068 place to play this game? Or should we do
1069 it when reading it in. */
1070 case IMAGE_COMDAT_SELECT_ASSOCIATIVE:
1071 #ifdef STRICT_PE_FORMAT
1072 /* FIXME: This is not currently implemented. */
1073 sec_flags |= SEC_LINK_DUPLICATES_DISCARD;
1075 sec_flags &= ~SEC_LINK_ONCE;
1079 default: /* 0 means "no symbol" */
1080 /* debug$F gets this case; other
1082 sec_flags |= SEC_LINK_DUPLICATES_DISCARD;
1089 /* Gas mode: the first matching on partial name. */
1091 #ifndef TARGET_UNDERSCORE
1092 #define TARGET_UNDERSCORE 0
1094 /* Is this the name we're looking for ? */
1095 if (strcmp (target_name,
1096 symname + (TARGET_UNDERSCORE ? 1 : 0)) != 0)
1098 /* Not the name we're looking for */
1099 esym += (isym.n_numaux + 1) * bfd_coff_symesz (abfd);
1104 /* MSVC mode: the lexically second symbol (or
1105 drop through from the above). */
1110 /* This must the second symbol with the
1111 section #. It is the actual symbol name.
1112 Intel puts the two adjacent, but Alpha (at
1113 least) spreads them out. */
1115 amt = sizeof (struct coff_comdat_info);
1116 coff_section_data (abfd, section)->comdat
1117 = (struct coff_comdat_info *) bfd_alloc (abfd, amt);
1118 if (coff_section_data (abfd, section)->comdat == NULL)
1121 coff_section_data (abfd, section)->comdat->symbol =
1122 (esym - esymstart) / bfd_coff_symesz (abfd);
1124 amt = strlen (symname) + 1;
1125 newname = (char *) bfd_alloc (abfd, amt);
1126 if (newname == NULL)
1129 strcpy (newname, symname);
1130 coff_section_data (abfd, section)->comdat->name
1138 esym += (isym.n_numaux + 1) * bfd_coff_symesz (abfd);
1146 /* The PE version; see above for the general comments.
1148 Since to set the SEC_LINK_ONCE and associated flags, we have to
1149 look at the symbol table anyway, we return the symbol table index
1150 of the symbol being used as the COMDAT symbol. This is admittedly
1151 ugly, but there's really nowhere else that we have access to the
1152 required information. FIXME: Is the COMDAT symbol index used for
1153 any purpose other than objdump? */
1156 styp_to_sec_flags (bfd *abfd,
1160 flagword *flags_ptr)
1162 struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
1163 long styp_flags = internal_s->s_flags;
1165 bfd_boolean result = TRUE;
1166 bfd_boolean is_dbg = FALSE;
1168 if (CONST_STRNEQ (name, DOT_DEBUG)
1169 || CONST_STRNEQ (name, DOT_ZDEBUG)
1170 #ifdef COFF_LONG_SECTION_NAMES
1171 || CONST_STRNEQ (name, GNU_LINKONCE_WI)
1172 || CONST_STRNEQ (name, GNU_LINKONCE_WT)
1174 || CONST_STRNEQ (name, ".stab"))
1176 /* Assume read only unless IMAGE_SCN_MEM_WRITE is specified. */
1177 sec_flags = SEC_READONLY;
1179 /* If section disallows read, then set the NOREAD flag. */
1180 if ((styp_flags & IMAGE_SCN_MEM_READ) == 0)
1181 sec_flags |= SEC_COFF_NOREAD;
1183 /* Process each flag bit in styp_flags in turn. */
1186 long flag = styp_flags & - styp_flags;
1187 char * unhandled = NULL;
1189 styp_flags &= ~ flag;
1191 /* We infer from the distinct read/write/execute bits the settings
1192 of some of the bfd flags; the actual values, should we need them,
1193 are also in pei_section_data (abfd, section)->pe_flags. */
1198 unhandled = "STYP_DSECT";
1201 unhandled = "STYP_GROUP";
1204 unhandled = "STYP_COPY";
1207 unhandled = "STYP_OVER";
1209 #ifdef SEC_NEVER_LOAD
1211 sec_flags |= SEC_NEVER_LOAD;
1214 case IMAGE_SCN_MEM_READ:
1215 sec_flags &= ~SEC_COFF_NOREAD;
1217 case IMAGE_SCN_TYPE_NO_PAD:
1220 case IMAGE_SCN_LNK_OTHER:
1221 unhandled = "IMAGE_SCN_LNK_OTHER";
1223 case IMAGE_SCN_MEM_NOT_CACHED:
1224 unhandled = "IMAGE_SCN_MEM_NOT_CACHED";
1226 case IMAGE_SCN_MEM_NOT_PAGED:
1227 /* Generate a warning message rather using the 'unhandled'
1228 variable as this will allow some .sys files generate by
1229 other toolchains to be processed. See bugzilla issue 196. */
1230 _bfd_error_handler (_("%B: Warning: Ignoring section flag IMAGE_SCN_MEM_NOT_PAGED in section %s"),
1233 case IMAGE_SCN_MEM_EXECUTE:
1234 sec_flags |= SEC_CODE;
1236 case IMAGE_SCN_MEM_WRITE:
1237 sec_flags &= ~ SEC_READONLY;
1239 case IMAGE_SCN_MEM_DISCARDABLE:
1240 /* The MS PE spec says that debug sections are DISCARDABLE,
1241 but the presence of a DISCARDABLE flag does not necessarily
1242 mean that a given section contains debug information. Thus
1243 we only set the SEC_DEBUGGING flag on sections that we
1244 recognise as containing debug information. */
1247 || strcmp (name, _COMMENT) == 0
1251 sec_flags |= SEC_DEBUGGING | SEC_READONLY;
1254 case IMAGE_SCN_MEM_SHARED:
1255 sec_flags |= SEC_COFF_SHARED;
1257 case IMAGE_SCN_LNK_REMOVE:
1259 sec_flags |= SEC_EXCLUDE;
1261 case IMAGE_SCN_CNT_CODE:
1262 sec_flags |= SEC_CODE | SEC_ALLOC | SEC_LOAD;
1264 case IMAGE_SCN_CNT_INITIALIZED_DATA:
1266 sec_flags |= SEC_DEBUGGING;
1268 sec_flags |= SEC_DATA | SEC_ALLOC | SEC_LOAD;
1270 case IMAGE_SCN_CNT_UNINITIALIZED_DATA:
1271 sec_flags |= SEC_ALLOC;
1273 case IMAGE_SCN_LNK_INFO:
1274 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
1275 defined. coff_compute_section_file_positions uses
1276 COFF_PAGE_SIZE to ensure that the low order bits of the
1277 section VMA and the file offset match. If we don't know
1278 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
1279 and demand page loading of the file will fail. */
1280 #ifdef COFF_PAGE_SIZE
1281 sec_flags |= SEC_DEBUGGING;
1284 case IMAGE_SCN_LNK_COMDAT:
1285 /* COMDAT gets very special treatment. */
1286 sec_flags = handle_COMDAT (abfd, sec_flags, hdr, name, section);
1289 /* Silently ignore for now. */
1293 /* If the section flag was not handled, report it here. */
1294 if (unhandled != NULL)
1296 (*_bfd_error_handler)
1297 (_("%B (%s): Section flag %s (0x%x) ignored"),
1298 abfd, name, unhandled, flag);
1303 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
1304 /* As a GNU extension, if the name begins with .gnu.linkonce, we
1305 only link a single copy of the section. This is used to support
1306 g++. g++ will emit each template expansion in its own section.
1307 The symbols will be defined as weak, so that multiple definitions
1308 are permitted. The GNU linker extension is to actually discard
1309 all but one of the sections. */
1310 if (CONST_STRNEQ (name, ".gnu.linkonce"))
1311 sec_flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD;
1315 * flags_ptr = sec_flags;
1320 #endif /* COFF_WITH_PE */
1322 #define get_index(symbol) ((symbol)->udata.i)
1326 bfd_coff_backend_data
1330 .{* COFF symbol classifications. *}
1332 .enum coff_symbol_classification
1334 . {* Global symbol. *}
1335 . COFF_SYMBOL_GLOBAL,
1336 . {* Common symbol. *}
1337 . COFF_SYMBOL_COMMON,
1338 . {* Undefined symbol. *}
1339 . COFF_SYMBOL_UNDEFINED,
1340 . {* Local symbol. *}
1341 . COFF_SYMBOL_LOCAL,
1342 . {* PE section symbol. *}
1343 . COFF_SYMBOL_PE_SECTION
1346 Special entry points for gdb to swap in coff symbol table parts:
1349 . void (*_bfd_coff_swap_aux_in)
1350 . (bfd *, void *, int, int, int, int, void *);
1352 . void (*_bfd_coff_swap_sym_in)
1353 . (bfd *, void *, void *);
1355 . void (*_bfd_coff_swap_lineno_in)
1356 . (bfd *, void *, void *);
1358 . unsigned int (*_bfd_coff_swap_aux_out)
1359 . (bfd *, void *, int, int, int, int, void *);
1361 . unsigned int (*_bfd_coff_swap_sym_out)
1362 . (bfd *, void *, void *);
1364 . unsigned int (*_bfd_coff_swap_lineno_out)
1365 . (bfd *, void *, void *);
1367 . unsigned int (*_bfd_coff_swap_reloc_out)
1368 . (bfd *, void *, void *);
1370 . unsigned int (*_bfd_coff_swap_filehdr_out)
1371 . (bfd *, void *, void *);
1373 . unsigned int (*_bfd_coff_swap_aouthdr_out)
1374 . (bfd *, void *, void *);
1376 . unsigned int (*_bfd_coff_swap_scnhdr_out)
1377 . (bfd *, void *, void *);
1379 . unsigned int _bfd_filhsz;
1380 . unsigned int _bfd_aoutsz;
1381 . unsigned int _bfd_scnhsz;
1382 . unsigned int _bfd_symesz;
1383 . unsigned int _bfd_auxesz;
1384 . unsigned int _bfd_relsz;
1385 . unsigned int _bfd_linesz;
1386 . unsigned int _bfd_filnmlen;
1387 . bfd_boolean _bfd_coff_long_filenames;
1389 . bfd_boolean _bfd_coff_long_section_names;
1390 . bfd_boolean (*_bfd_coff_set_long_section_names)
1393 . unsigned int _bfd_coff_default_section_alignment_power;
1394 . bfd_boolean _bfd_coff_force_symnames_in_strings;
1395 . unsigned int _bfd_coff_debug_string_prefix_length;
1397 . void (*_bfd_coff_swap_filehdr_in)
1398 . (bfd *, void *, void *);
1400 . void (*_bfd_coff_swap_aouthdr_in)
1401 . (bfd *, void *, void *);
1403 . void (*_bfd_coff_swap_scnhdr_in)
1404 . (bfd *, void *, void *);
1406 . void (*_bfd_coff_swap_reloc_in)
1407 . (bfd *abfd, void *, void *);
1409 . bfd_boolean (*_bfd_coff_bad_format_hook)
1412 . bfd_boolean (*_bfd_coff_set_arch_mach_hook)
1415 . void * (*_bfd_coff_mkobject_hook)
1416 . (bfd *, void *, void *);
1418 . bfd_boolean (*_bfd_styp_to_sec_flags_hook)
1419 . (bfd *, void *, const char *, asection *, flagword *);
1421 . void (*_bfd_set_alignment_hook)
1422 . (bfd *, asection *, void *);
1424 . bfd_boolean (*_bfd_coff_slurp_symbol_table)
1427 . bfd_boolean (*_bfd_coff_symname_in_debug)
1428 . (bfd *, struct internal_syment *);
1430 . bfd_boolean (*_bfd_coff_pointerize_aux_hook)
1431 . (bfd *, combined_entry_type *, combined_entry_type *,
1432 . unsigned int, combined_entry_type *);
1434 . bfd_boolean (*_bfd_coff_print_aux)
1435 . (bfd *, FILE *, combined_entry_type *, combined_entry_type *,
1436 . combined_entry_type *, unsigned int);
1438 . void (*_bfd_coff_reloc16_extra_cases)
1439 . (bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *,
1440 . bfd_byte *, unsigned int *, unsigned int *);
1442 . int (*_bfd_coff_reloc16_estimate)
1443 . (bfd *, asection *, arelent *, unsigned int,
1444 . struct bfd_link_info *);
1446 . enum coff_symbol_classification (*_bfd_coff_classify_symbol)
1447 . (bfd *, struct internal_syment *);
1449 . bfd_boolean (*_bfd_coff_compute_section_file_positions)
1452 . bfd_boolean (*_bfd_coff_start_final_link)
1453 . (bfd *, struct bfd_link_info *);
1455 . bfd_boolean (*_bfd_coff_relocate_section)
1456 . (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
1457 . struct internal_reloc *, struct internal_syment *, asection **);
1459 . reloc_howto_type *(*_bfd_coff_rtype_to_howto)
1460 . (bfd *, asection *, struct internal_reloc *,
1461 . struct coff_link_hash_entry *, struct internal_syment *,
1464 . bfd_boolean (*_bfd_coff_adjust_symndx)
1465 . (bfd *, struct bfd_link_info *, bfd *, asection *,
1466 . struct internal_reloc *, bfd_boolean *);
1468 . bfd_boolean (*_bfd_coff_link_add_one_symbol)
1469 . (struct bfd_link_info *, bfd *, const char *, flagword,
1470 . asection *, bfd_vma, const char *, bfd_boolean, bfd_boolean,
1471 . struct bfd_link_hash_entry **);
1473 . bfd_boolean (*_bfd_coff_link_output_has_begun)
1474 . (bfd *, struct coff_final_link_info *);
1476 . bfd_boolean (*_bfd_coff_final_link_postscript)
1477 . (bfd *, struct coff_final_link_info *);
1479 . bfd_boolean (*_bfd_coff_print_pdata)
1482 .} bfd_coff_backend_data;
1484 .#define coff_backend_info(abfd) \
1485 . ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
1487 .#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \
1488 . ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i))
1490 .#define bfd_coff_swap_sym_in(a,e,i) \
1491 . ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))
1493 .#define bfd_coff_swap_lineno_in(a,e,i) \
1494 . ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))
1496 .#define bfd_coff_swap_reloc_out(abfd, i, o) \
1497 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))
1499 .#define bfd_coff_swap_lineno_out(abfd, i, o) \
1500 . ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))
1502 .#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \
1503 . ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o))
1505 .#define bfd_coff_swap_sym_out(abfd, i,o) \
1506 . ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))
1508 .#define bfd_coff_swap_scnhdr_out(abfd, i,o) \
1509 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))
1511 .#define bfd_coff_swap_filehdr_out(abfd, i,o) \
1512 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))
1514 .#define bfd_coff_swap_aouthdr_out(abfd, i,o) \
1515 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
1517 .#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
1518 .#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
1519 .#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
1520 .#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
1521 .#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
1522 .#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz)
1523 .#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
1524 .#define bfd_coff_filnmlen(abfd) (coff_backend_info (abfd)->_bfd_filnmlen)
1525 .#define bfd_coff_long_filenames(abfd) \
1526 . (coff_backend_info (abfd)->_bfd_coff_long_filenames)
1527 .#define bfd_coff_long_section_names(abfd) \
1528 . (coff_backend_info (abfd)->_bfd_coff_long_section_names)
1529 .#define bfd_coff_set_long_section_names(abfd, enable) \
1530 . ((coff_backend_info (abfd)->_bfd_coff_set_long_section_names) (abfd, enable))
1531 .#define bfd_coff_default_section_alignment_power(abfd) \
1532 . (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power)
1533 .#define bfd_coff_swap_filehdr_in(abfd, i,o) \
1534 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
1536 .#define bfd_coff_swap_aouthdr_in(abfd, i,o) \
1537 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))
1539 .#define bfd_coff_swap_scnhdr_in(abfd, i,o) \
1540 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
1542 .#define bfd_coff_swap_reloc_in(abfd, i, o) \
1543 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))
1545 .#define bfd_coff_bad_format_hook(abfd, filehdr) \
1546 . ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
1548 .#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
1549 . ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
1550 .#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\
1551 . ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook)\
1552 . (abfd, filehdr, aouthdr))
1554 .#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section, flags_ptr)\
1555 . ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\
1556 . (abfd, scnhdr, name, section, flags_ptr))
1558 .#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
1559 . ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
1561 .#define bfd_coff_slurp_symbol_table(abfd)\
1562 . ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))
1564 .#define bfd_coff_symname_in_debug(abfd, sym)\
1565 . ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
1567 .#define bfd_coff_force_symnames_in_strings(abfd)\
1568 . (coff_backend_info (abfd)->_bfd_coff_force_symnames_in_strings)
1570 .#define bfd_coff_debug_string_prefix_length(abfd)\
1571 . (coff_backend_info (abfd)->_bfd_coff_debug_string_prefix_length)
1573 .#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\
1574 . ((coff_backend_info (abfd)->_bfd_coff_print_aux)\
1575 . (abfd, file, base, symbol, aux, indaux))
1577 .#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order,\
1578 . reloc, data, src_ptr, dst_ptr)\
1579 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
1580 . (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))
1582 .#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\
1583 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
1584 . (abfd, section, reloc, shrink, link_info))
1586 .#define bfd_coff_classify_symbol(abfd, sym)\
1587 . ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\
1590 .#define bfd_coff_compute_section_file_positions(abfd)\
1591 . ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
1594 .#define bfd_coff_start_final_link(obfd, info)\
1595 . ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\
1597 .#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
1598 . ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
1599 . (obfd, info, ibfd, o, con, rel, isyms, secs))
1600 .#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\
1601 . ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\
1602 . (abfd, sec, rel, h, sym, addendp))
1603 .#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\
1604 . ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\
1605 . (obfd, info, ibfd, sec, rel, adjustedp))
1606 .#define bfd_coff_link_add_one_symbol(info, abfd, name, flags, section,\
1607 . value, string, cp, coll, hashp)\
1608 . ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\
1609 . (info, abfd, name, flags, section, value, string, cp, coll, hashp))
1611 .#define bfd_coff_link_output_has_begun(a,p) \
1612 . ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a, p))
1613 .#define bfd_coff_final_link_postscript(a,p) \
1614 . ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a, p))
1616 .#define bfd_coff_have_print_pdata(a) \
1617 . (coff_backend_info (a)->_bfd_coff_print_pdata)
1618 .#define bfd_coff_print_pdata(a,p) \
1619 . ((coff_backend_info (a)->_bfd_coff_print_pdata) (a, p))
1621 .{* Macro: Returns true if the bfd is a PE executable as opposed to a
1622 . PE object file. *}
1623 .#define bfd_pei_p(abfd) \
1624 . (CONST_STRNEQ ((abfd)->xvec->name, "pei-"))
1627 /* See whether the magic number matches. */
1630 coff_bad_format_hook (bfd * abfd ATTRIBUTE_UNUSED, void * filehdr)
1632 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1634 if (BADMAG (*internal_f))
1637 /* If the optional header is NULL or not the correct size then
1638 quit; the only difference I can see between m88k dgux headers (MC88DMAGIC)
1639 and Intel 960 readwrite headers (I960WRMAGIC) is that the
1640 optional header is of a different size.
1642 But the mips keeps extra stuff in it's opthdr, so dont check
1645 #if defined(M88) || defined(I960)
1646 if (internal_f->f_opthdr != 0 && bfd_coff_aoutsz (abfd) != internal_f->f_opthdr)
1655 ticoff0_bad_format_hook (bfd *abfd ATTRIBUTE_UNUSED, void * filehdr)
1657 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1659 if (COFF0_BADMAG (*internal_f))
1668 ticoff1_bad_format_hook (bfd *abfd ATTRIBUTE_UNUSED, void * filehdr)
1670 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1672 if (COFF1_BADMAG (*internal_f))
1679 /* Check whether this section uses an alignment other than the
1683 coff_set_custom_section_alignment (bfd *abfd ATTRIBUTE_UNUSED,
1685 const struct coff_section_alignment_entry *alignment_table,
1686 const unsigned int table_size)
1688 const unsigned int default_alignment = COFF_DEFAULT_SECTION_ALIGNMENT_POWER;
1691 for (i = 0; i < table_size; ++i)
1693 const char *secname = bfd_get_section_name (abfd, section);
1695 if (alignment_table[i].comparison_length == (unsigned int) -1
1696 ? strcmp (alignment_table[i].name, secname) == 0
1697 : strncmp (alignment_table[i].name, secname,
1698 alignment_table[i].comparison_length) == 0)
1701 if (i >= table_size)
1704 if (alignment_table[i].default_alignment_min != COFF_ALIGNMENT_FIELD_EMPTY
1705 && default_alignment < alignment_table[i].default_alignment_min)
1708 if (alignment_table[i].default_alignment_max != COFF_ALIGNMENT_FIELD_EMPTY
1709 #if COFF_DEFAULT_SECTION_ALIGNMENT_POWER != 0
1710 && default_alignment > alignment_table[i].default_alignment_max
1715 section->alignment_power = alignment_table[i].alignment_power;
1718 /* Custom section alignment records. */
1720 static const struct coff_section_alignment_entry
1721 coff_section_alignment_table[] =
1723 #ifdef COFF_SECTION_ALIGNMENT_ENTRIES
1724 COFF_SECTION_ALIGNMENT_ENTRIES,
1726 /* There must not be any gaps between .stabstr sections. */
1727 { COFF_SECTION_NAME_PARTIAL_MATCH (".stabstr"),
1728 1, COFF_ALIGNMENT_FIELD_EMPTY, 0 },
1729 /* The .stab section must be aligned to 2**2 at most, to avoid gaps. */
1730 { COFF_SECTION_NAME_PARTIAL_MATCH (".stab"),
1731 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 },
1732 /* Similarly for the .ctors and .dtors sections. */
1733 { COFF_SECTION_NAME_EXACT_MATCH (".ctors"),
1734 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 },
1735 { COFF_SECTION_NAME_EXACT_MATCH (".dtors"),
1736 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 }
1739 static const unsigned int coff_section_alignment_table_size =
1740 sizeof coff_section_alignment_table / sizeof coff_section_alignment_table[0];
1742 /* Initialize a section structure with information peculiar to this
1743 particular implementation of COFF. */
1746 coff_new_section_hook (bfd * abfd, asection * section)
1748 combined_entry_type *native;
1750 unsigned char sclass = C_STAT;
1752 section->alignment_power = COFF_DEFAULT_SECTION_ALIGNMENT_POWER;
1755 if (bfd_xcoff_text_align_power (abfd) != 0
1756 && strcmp (bfd_get_section_name (abfd, section), ".text") == 0)
1757 section->alignment_power = bfd_xcoff_text_align_power (abfd);
1758 else if (bfd_xcoff_data_align_power (abfd) != 0
1759 && strcmp (bfd_get_section_name (abfd, section), ".data") == 0)
1760 section->alignment_power = bfd_xcoff_data_align_power (abfd);
1765 for (i = 0; i < XCOFF_DWSECT_NBR_NAMES; i++)
1766 if (strcmp (bfd_get_section_name (abfd, section),
1767 xcoff_dwsect_names[i].name) == 0)
1769 section->alignment_power = 0;
1776 /* Set up the section symbol. */
1777 if (!_bfd_generic_new_section_hook (abfd, section))
1780 /* Allocate aux records for section symbols, to store size and
1783 @@ The 10 is a guess at a plausible maximum number of aux entries
1784 (but shouldn't be a constant). */
1785 amt = sizeof (combined_entry_type) * 10;
1786 native = (combined_entry_type *) bfd_zalloc (abfd, amt);
1790 /* We don't need to set up n_name, n_value, or n_scnum in the native
1791 symbol information, since they'll be overridden by the BFD symbol
1792 anyhow. However, we do need to set the type and storage class,
1793 in case this symbol winds up getting written out. The value 0
1794 for n_numaux is already correct. */
1796 native->u.syment.n_type = T_NULL;
1797 native->u.syment.n_sclass = sclass;
1799 coffsymbol (section->symbol)->native = native;
1801 coff_set_custom_section_alignment (abfd, section,
1802 coff_section_alignment_table,
1803 coff_section_alignment_table_size);
1808 #ifdef COFF_ALIGN_IN_SECTION_HEADER
1810 /* Set the alignment of a BFD section. */
1813 coff_set_alignment_hook (bfd * abfd ATTRIBUTE_UNUSED,
1817 struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
1821 /* Extract ALIGN from 2**ALIGN stored in section header. */
1822 for (i = 0; i < 32; i++)
1823 if ((1 << i) >= hdr->s_align)
1827 /* TI tools puts the alignment power in bits 8-11. */
1828 i = (hdr->s_flags >> 8) & 0xF ;
1830 #ifdef COFF_DECODE_ALIGNMENT
1831 i = COFF_DECODE_ALIGNMENT(hdr->s_flags);
1833 section->alignment_power = i;
1835 #ifdef coff_set_section_load_page
1836 coff_set_section_load_page (section, hdr->s_page);
1840 #else /* ! COFF_ALIGN_IN_SECTION_HEADER */
1844 coff_set_alignment_hook (bfd * abfd ATTRIBUTE_UNUSED,
1848 struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
1850 unsigned int alignment_power_const
1851 = hdr->s_flags & IMAGE_SCN_ALIGN_POWER_BIT_MASK;
1853 switch (alignment_power_const)
1855 case IMAGE_SCN_ALIGN_8192BYTES:
1856 case IMAGE_SCN_ALIGN_4096BYTES:
1857 case IMAGE_SCN_ALIGN_2048BYTES:
1858 case IMAGE_SCN_ALIGN_1024BYTES:
1859 case IMAGE_SCN_ALIGN_512BYTES:
1860 case IMAGE_SCN_ALIGN_256BYTES:
1861 case IMAGE_SCN_ALIGN_128BYTES:
1862 case IMAGE_SCN_ALIGN_64BYTES:
1863 case IMAGE_SCN_ALIGN_32BYTES:
1864 case IMAGE_SCN_ALIGN_16BYTES:
1865 case IMAGE_SCN_ALIGN_8BYTES:
1866 case IMAGE_SCN_ALIGN_4BYTES:
1867 case IMAGE_SCN_ALIGN_2BYTES:
1868 case IMAGE_SCN_ALIGN_1BYTES:
1869 section->alignment_power
1870 = IMAGE_SCN_ALIGN_POWER_NUM (alignment_power_const);
1876 /* In a PE image file, the s_paddr field holds the virtual size of a
1877 section, while the s_size field holds the raw size. We also keep
1878 the original section flag value, since not every bit can be
1879 mapped onto a generic BFD section bit. */
1880 if (coff_section_data (abfd, section) == NULL)
1882 amt = sizeof (struct coff_section_tdata);
1883 section->used_by_bfd = bfd_zalloc (abfd, amt);
1884 if (section->used_by_bfd == NULL)
1885 /* FIXME: Return error. */
1889 if (pei_section_data (abfd, section) == NULL)
1891 amt = sizeof (struct pei_section_tdata);
1892 coff_section_data (abfd, section)->tdata = bfd_zalloc (abfd, amt);
1893 if (coff_section_data (abfd, section)->tdata == NULL)
1894 /* FIXME: Return error. */
1897 pei_section_data (abfd, section)->virt_size = hdr->s_paddr;
1898 pei_section_data (abfd, section)->pe_flags = hdr->s_flags;
1900 section->lma = hdr->s_vaddr;
1902 /* Check for extended relocs. */
1903 if (hdr->s_flags & IMAGE_SCN_LNK_NRELOC_OVFL)
1905 struct external_reloc dst;
1906 struct internal_reloc n;
1907 file_ptr oldpos = bfd_tell (abfd);
1908 bfd_size_type relsz = bfd_coff_relsz (abfd);
1910 if (bfd_seek (abfd, (file_ptr) hdr->s_relptr, 0) != 0)
1912 if (bfd_bread (& dst, relsz, abfd) != relsz)
1915 coff_swap_reloc_in (abfd, &dst, &n);
1916 if (bfd_seek (abfd, oldpos, 0) != 0)
1918 section->reloc_count = hdr->s_nreloc = n.r_vaddr - 1;
1919 section->rel_filepos += relsz;
1921 else if (hdr->s_nreloc == 0xffff)
1922 (*_bfd_error_handler)
1923 ("%s: warning: claims to have 0xffff relocs, without overflow",
1924 bfd_get_filename (abfd));
1927 #undef ELIFALIGN_SET
1929 #else /* ! COFF_WITH_PE */
1932 /* We grossly abuse this function to handle XCOFF overflow headers.
1933 When we see one, we correct the reloc and line number counts in the
1934 real header, and remove the section we just created. */
1937 coff_set_alignment_hook (bfd *abfd, asection *section, void * scnhdr)
1939 struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
1942 if ((hdr->s_flags & STYP_OVRFLO) == 0)
1945 real_sec = coff_section_from_bfd_index (abfd, (int) hdr->s_nreloc);
1946 if (real_sec == NULL)
1949 real_sec->reloc_count = hdr->s_paddr;
1950 real_sec->lineno_count = hdr->s_vaddr;
1952 if (!bfd_section_removed_from_list (abfd, section))
1954 bfd_section_list_remove (abfd, section);
1955 --abfd->section_count;
1959 #else /* ! RS6000COFF_C */
1961 #define coff_set_alignment_hook \
1962 ((void (*) (bfd *, asection *, void *)) bfd_void)
1964 #endif /* ! RS6000COFF_C */
1965 #endif /* ! COFF_WITH_PE */
1966 #endif /* ! COFF_ALIGN_IN_SECTION_HEADER */
1968 #ifndef coff_mkobject
1971 coff_mkobject (bfd * abfd)
1973 coff_data_type *coff;
1974 bfd_size_type amt = sizeof (coff_data_type);
1976 abfd->tdata.coff_obj_data = bfd_zalloc (abfd, amt);
1977 if (abfd->tdata.coff_obj_data == NULL)
1979 coff = coff_data (abfd);
1980 coff->symbols = NULL;
1981 coff->conversion_table = NULL;
1982 coff->raw_syments = NULL;
1983 coff->relocbase = 0;
1984 coff->local_toc_sym_map = 0;
1986 /* make_abs_section(abfd);*/
1992 /* Create the COFF backend specific information. */
1994 #ifndef coff_mkobject_hook
1996 coff_mkobject_hook (bfd * abfd,
1998 void * aouthdr ATTRIBUTE_UNUSED)
2000 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
2001 coff_data_type *coff;
2003 if (! coff_mkobject (abfd))
2006 coff = coff_data (abfd);
2008 coff->sym_filepos = internal_f->f_symptr;
2010 /* These members communicate important constants about the symbol
2011 table to GDB's symbol-reading code. These `constants'
2012 unfortunately vary among coff implementations... */
2013 coff->local_n_btmask = N_BTMASK;
2014 coff->local_n_btshft = N_BTSHFT;
2015 coff->local_n_tmask = N_TMASK;
2016 coff->local_n_tshift = N_TSHIFT;
2017 coff->local_symesz = bfd_coff_symesz (abfd);
2018 coff->local_auxesz = bfd_coff_auxesz (abfd);
2019 coff->local_linesz = bfd_coff_linesz (abfd);
2021 coff->timestamp = internal_f->f_timdat;
2023 obj_raw_syment_count (abfd) =
2024 obj_conv_table_size (abfd) =
2025 internal_f->f_nsyms;
2028 if ((internal_f->f_flags & F_SHROBJ) != 0)
2029 abfd->flags |= DYNAMIC;
2030 if (aouthdr != NULL && internal_f->f_opthdr >= bfd_coff_aoutsz (abfd))
2032 struct internal_aouthdr *internal_a =
2033 (struct internal_aouthdr *) aouthdr;
2034 struct xcoff_tdata *xcoff;
2036 xcoff = xcoff_data (abfd);
2037 # ifdef U803XTOCMAGIC
2038 xcoff->xcoff64 = internal_f->f_magic == U803XTOCMAGIC;
2042 xcoff->full_aouthdr = TRUE;
2043 xcoff->toc = internal_a->o_toc;
2044 xcoff->sntoc = internal_a->o_sntoc;
2045 xcoff->snentry = internal_a->o_snentry;
2046 bfd_xcoff_text_align_power (abfd) = internal_a->o_algntext;
2047 bfd_xcoff_data_align_power (abfd) = internal_a->o_algndata;
2048 xcoff->modtype = internal_a->o_modtype;
2049 xcoff->cputype = internal_a->o_cputype;
2050 xcoff->maxdata = internal_a->o_maxdata;
2051 xcoff->maxstack = internal_a->o_maxstack;
2056 /* Set the flags field from the COFF header read in. */
2057 if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags))
2062 /* FIXME: I'm not sure this is ever executed, since peicode.h
2063 defines coff_mkobject_hook. */
2064 if ((internal_f->f_flags & IMAGE_FILE_DEBUG_STRIPPED) == 0)
2065 abfd->flags |= HAS_DEBUG;
2068 if ((internal_f->f_flags & F_GO32STUB) != 0)
2069 coff->go32stub = (char *) bfd_alloc (abfd, (bfd_size_type) GO32_STUBSIZE);
2070 if (coff->go32stub != NULL)
2071 memcpy (coff->go32stub, internal_f->go32stub, GO32_STUBSIZE);
2077 /* Determine the machine architecture and type. FIXME: This is target
2078 dependent because the magic numbers are defined in the target
2079 dependent header files. But there is no particular need for this.
2080 If the magic numbers were moved to a separate file, this function
2081 would be target independent and would also be much more successful
2082 at linking together COFF files for different architectures. */
2085 coff_set_arch_mach_hook (bfd *abfd, void * filehdr)
2087 unsigned long machine;
2088 enum bfd_architecture arch;
2089 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
2091 /* Zero selects the default machine for an arch. */
2093 switch (internal_f->f_magic)
2095 #ifdef OR32_MAGIC_BIG
2096 case OR32_MAGIC_BIG:
2097 case OR32_MAGIC_LITTLE:
2098 arch = bfd_arch_or32;
2103 arch = bfd_arch_powerpc;
2109 case I386AIXMAGIC: /* Danbury PS/2 AIX C Compiler. */
2110 case LYNXCOFFMAGIC: /* Shadows the m68k Lynx number below, sigh. */
2111 arch = bfd_arch_i386;
2116 arch = bfd_arch_i386;
2117 machine = bfd_mach_x86_64;
2122 arch = bfd_arch_ia64;
2129 arch = bfd_arch_arm;
2130 machine = bfd_arm_get_mach_from_notes (abfd, ARM_NOTE_SECTION);
2131 if (machine == bfd_mach_arm_unknown)
2133 switch (internal_f->f_flags & F_ARM_ARCHITECTURE_MASK)
2135 case F_ARM_2: machine = bfd_mach_arm_2; break;
2136 case F_ARM_2a: machine = bfd_mach_arm_2a; break;
2137 case F_ARM_3: machine = bfd_mach_arm_3; break;
2139 case F_ARM_3M: machine = bfd_mach_arm_3M; break;
2140 case F_ARM_4: machine = bfd_mach_arm_4; break;
2141 case F_ARM_4T: machine = bfd_mach_arm_4T; break;
2142 /* The COFF header does not have enough bits available
2143 to cover all the different ARM architectures. So
2144 we interpret F_ARM_5, the highest flag value to mean
2145 "the highest ARM architecture known to BFD" which is
2146 currently the XScale. */
2147 case F_ARM_5: machine = bfd_mach_arm_XScale; break;
2155 #ifdef MC68KBCSMAGIC
2158 #ifdef APOLLOM68KMAGIC
2159 case APOLLOM68KMAGIC:
2161 #ifdef LYNXCOFFMAGIC
2164 arch = bfd_arch_m68k;
2165 machine = bfd_mach_m68020;
2172 arch = bfd_arch_m88k;
2178 arch = bfd_arch_z80;
2179 switch (internal_f->f_flags & F_MACHMASK)
2182 case bfd_mach_z80strict << 12:
2183 case bfd_mach_z80 << 12:
2184 case bfd_mach_z80full << 12:
2185 case bfd_mach_r800 << 12:
2186 machine = ((unsigned)internal_f->f_flags & F_MACHMASK) >> 12;
2195 arch = bfd_arch_z8k;
2196 switch (internal_f->f_flags & F_MACHMASK)
2199 machine = bfd_mach_z8001;
2202 machine = bfd_mach_z8002;
2211 arch = bfd_arch_i860;
2218 arch = bfd_arch_i960;
2219 switch (F_I960TYPE & internal_f->f_flags)
2223 machine = bfd_mach_i960_core;
2226 machine = bfd_mach_i960_kb_sb;
2229 machine = bfd_mach_i960_mc;
2232 machine = bfd_mach_i960_xa;
2235 machine = bfd_mach_i960_ca;
2238 machine = bfd_mach_i960_ka_sa;
2241 machine = bfd_mach_i960_jx;
2244 machine = bfd_mach_i960_hx;
2263 if (xcoff_data (abfd)->cputype != -1)
2264 cputype = xcoff_data (abfd)->cputype & 0xff;
2267 /* We did not get a value from the a.out header. If the
2268 file has not been stripped, we may be able to get the
2269 architecture information from the first symbol, if it
2270 is a .file symbol. */
2271 if (obj_raw_syment_count (abfd) == 0)
2276 struct internal_syment sym;
2277 bfd_size_type amt = bfd_coff_symesz (abfd);
2279 buf = bfd_malloc (amt);
2280 if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0
2281 || bfd_bread (buf, amt, abfd) != amt)
2286 bfd_coff_swap_sym_in (abfd, buf, & sym);
2287 if (sym.n_sclass == C_FILE)
2288 cputype = sym.n_type & 0xff;
2295 /* FIXME: We don't handle all cases here. */
2300 arch = bfd_xcoff_architecture (abfd);
2301 machine = bfd_xcoff_machine (abfd);
2305 arch = bfd_arch_powerpc;
2306 machine = bfd_mach_ppc_601;
2308 case 2: /* 64 bit PowerPC */
2309 arch = bfd_arch_powerpc;
2310 machine = bfd_mach_ppc_620;
2313 arch = bfd_arch_powerpc;
2314 machine = bfd_mach_ppc;
2317 arch = bfd_arch_rs6000;
2318 machine = bfd_mach_rs6k;
2327 arch = bfd_arch_we32k;
2333 arch = bfd_arch_h8300;
2334 machine = bfd_mach_h8300;
2335 /* !! FIXME this probably isn't the right place for this. */
2336 abfd->flags |= BFD_IS_RELAXABLE;
2342 arch = bfd_arch_h8300;
2343 machine = bfd_mach_h8300h;
2344 /* !! FIXME this probably isn't the right place for this. */
2345 abfd->flags |= BFD_IS_RELAXABLE;
2351 arch = bfd_arch_h8300;
2352 machine = bfd_mach_h8300s;
2353 /* !! FIXME this probably isn't the right place for this. */
2354 abfd->flags |= BFD_IS_RELAXABLE;
2360 arch = bfd_arch_h8300;
2361 machine = bfd_mach_h8300hn;
2362 /* !! FIXME this probably isn't the right place for this. */
2363 abfd->flags |= BFD_IS_RELAXABLE;
2369 arch = bfd_arch_h8300;
2370 machine = bfd_mach_h8300sn;
2371 /* !! FIXME this probably isn't the right place for this. */
2372 abfd->flags |= BFD_IS_RELAXABLE;
2376 #ifdef SH_ARCH_MAGIC_BIG
2377 case SH_ARCH_MAGIC_BIG:
2378 case SH_ARCH_MAGIC_LITTLE:
2380 case SH_ARCH_MAGIC_WINCE:
2386 #ifdef MIPS_ARCH_MAGIC_WINCE
2387 case MIPS_ARCH_MAGIC_WINCE:
2388 arch = bfd_arch_mips;
2394 arch = bfd_arch_h8500;
2400 #ifdef LYNXCOFFMAGIC
2403 arch = bfd_arch_sparc;
2409 arch = bfd_arch_tic30;
2414 #ifdef TICOFF_TARGET_ARCH
2415 /* This TI COFF section should be used by all new TI COFF v0 targets. */
2417 arch = TICOFF_TARGET_ARCH;
2418 machine = TICOFF_TARGET_MACHINE_GET (internal_f->f_flags);
2424 /* This TI COFF section should be used by all new TI COFF v1/2 targets. */
2425 /* TI COFF1 and COFF2 use the target_id field to specify which arch. */
2428 switch (internal_f->f_target_id)
2432 arch = TICOFF_TARGET_ARCH;
2433 machine = TICOFF_TARGET_MACHINE_GET (internal_f->f_flags);
2437 arch = bfd_arch_obscure;
2438 (*_bfd_error_handler)
2439 (_("Unrecognized TI COFF target id '0x%x'"),
2440 internal_f->f_target_id);
2446 #ifdef TIC80_ARCH_MAGIC
2447 case TIC80_ARCH_MAGIC:
2448 arch = bfd_arch_tic80;
2454 arch = bfd_arch_mcore;
2460 arch = bfd_arch_w65;
2464 default: /* Unreadable input file type. */
2465 arch = bfd_arch_obscure;
2469 bfd_default_set_arch_mach (abfd, arch, machine);
2473 #ifdef SYMNAME_IN_DEBUG
2476 symname_in_debug_hook (bfd * abfd ATTRIBUTE_UNUSED, struct internal_syment *sym)
2478 return SYMNAME_IN_DEBUG (sym) != 0;
2483 #define symname_in_debug_hook \
2484 (bfd_boolean (*) (bfd *, struct internal_syment *)) bfd_false
2491 #define FORCE_SYMNAMES_IN_STRINGS
2494 /* Handle the csect auxent of a C_EXT, C_AIX_WEAKEXT or C_HIDEXT symbol. */
2497 coff_pointerize_aux_hook (bfd *abfd ATTRIBUTE_UNUSED,
2498 combined_entry_type *table_base,
2499 combined_entry_type *symbol,
2500 unsigned int indaux,
2501 combined_entry_type *aux)
2503 int n_sclass = symbol->u.syment.n_sclass;
2505 if (CSECT_SYM_P (n_sclass)
2506 && indaux + 1 == symbol->u.syment.n_numaux)
2508 if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) == XTY_LD)
2510 aux->u.auxent.x_csect.x_scnlen.p =
2511 table_base + aux->u.auxent.x_csect.x_scnlen.l;
2512 aux->fix_scnlen = 1;
2515 /* Return TRUE to indicate that the caller should not do any
2516 further work on this auxent. */
2520 /* Return FALSE to indicate that this auxent should be handled by
2528 /* We don't want to pointerize bal entries. */
2531 coff_pointerize_aux_hook (bfd *abfd ATTRIBUTE_UNUSED,
2532 combined_entry_type *table_base ATTRIBUTE_UNUSED,
2533 combined_entry_type *symbol,
2534 unsigned int indaux,
2535 combined_entry_type *aux ATTRIBUTE_UNUSED)
2537 /* Return TRUE if we don't want to pointerize this aux entry, which
2538 is the case for the lastfirst aux entry for a C_LEAFPROC symbol. */
2540 && (symbol->u.syment.n_sclass == C_LEAFPROC
2541 || symbol->u.syment.n_sclass == C_LEAFSTAT
2542 || symbol->u.syment.n_sclass == C_LEAFEXT));
2547 #define coff_pointerize_aux_hook 0
2550 #endif /* ! RS6000COFF_C */
2552 /* Print an aux entry. This returns TRUE if it has printed it. */
2555 coff_print_aux (bfd *abfd ATTRIBUTE_UNUSED,
2556 FILE *file ATTRIBUTE_UNUSED,
2557 combined_entry_type *table_base ATTRIBUTE_UNUSED,
2558 combined_entry_type *symbol ATTRIBUTE_UNUSED,
2559 combined_entry_type *aux ATTRIBUTE_UNUSED,
2560 unsigned int indaux ATTRIBUTE_UNUSED)
2563 if (CSECT_SYM_P (symbol->u.syment.n_sclass)
2564 && indaux + 1 == symbol->u.syment.n_numaux)
2566 /* This is a csect entry. */
2567 fprintf (file, "AUX ");
2568 if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) != XTY_LD)
2570 BFD_ASSERT (! aux->fix_scnlen);
2572 fprintf (file, "val %5lld",
2573 (long long) aux->u.auxent.x_csect.x_scnlen.l);
2575 fprintf (file, "val %5ld", (long) aux->u.auxent.x_csect.x_scnlen.l);
2580 fprintf (file, "indx ");
2581 if (! aux->fix_scnlen)
2583 fprintf (file, "%4lld",
2584 (long long) aux->u.auxent.x_csect.x_scnlen.l);
2586 fprintf (file, "%4ld", (long) aux->u.auxent.x_csect.x_scnlen.l);
2589 fprintf (file, "%4ld",
2590 (long) (aux->u.auxent.x_csect.x_scnlen.p - table_base));
2593 " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u",
2594 aux->u.auxent.x_csect.x_parmhash,
2595 (unsigned int) aux->u.auxent.x_csect.x_snhash,
2596 SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp),
2597 SMTYP_ALIGN (aux->u.auxent.x_csect.x_smtyp),
2598 (unsigned int) aux->u.auxent.x_csect.x_smclas,
2599 aux->u.auxent.x_csect.x_stab,
2600 (unsigned int) aux->u.auxent.x_csect.x_snstab);
2605 /* Return FALSE to indicate that no special action was taken. */
2613 To write relocations, the back end steps though the
2614 canonical relocation table and create an
2615 @code{internal_reloc}. The symbol index to use is removed from
2616 the @code{offset} field in the symbol table supplied. The
2617 address comes directly from the sum of the section base
2618 address and the relocation offset; the type is dug directly
2619 from the howto field. Then the @code{internal_reloc} is
2620 swapped into the shape of an @code{external_reloc} and written
2628 /* AUX's ld wants relocations to be sorted. */
2630 compare_arelent_ptr (const void * x, const void * y)
2632 const arelent **a = (const arelent **) x;
2633 const arelent **b = (const arelent **) y;
2634 bfd_size_type aadr = (*a)->address;
2635 bfd_size_type badr = (*b)->address;
2637 return (aadr < badr ? -1 : badr < aadr ? 1 : 0);
2640 #endif /* TARG_AUX */
2643 coff_write_relocs (bfd * abfd, int first_undef)
2647 for (s = abfd->sections; s != NULL; s = s->next)
2650 struct external_reloc dst;
2657 /* Sort relocations before we write them out. */
2660 amt = s->reloc_count;
2661 amt *= sizeof (arelent *);
2662 p = bfd_malloc (amt);
2663 if (p == NULL && s->reloc_count > 0)
2665 memcpy (p, s->orelocation, (size_t) amt);
2666 qsort (p, s->reloc_count, sizeof (arelent *), compare_arelent_ptr);
2670 if (bfd_seek (abfd, s->rel_filepos, SEEK_SET) != 0)
2674 if (obj_pe (abfd) && s->reloc_count >= 0xffff)
2676 /* Encode real count here as first reloc. */
2677 struct internal_reloc n;
2679 memset (& n, 0, sizeof (n));
2680 /* Add one to count *this* reloc (grr). */
2681 n.r_vaddr = s->reloc_count + 1;
2682 coff_swap_reloc_out (abfd, &n, &dst);
2683 if (bfd_bwrite (& dst, (bfd_size_type) bfd_coff_relsz (abfd),
2684 abfd) != bfd_coff_relsz (abfd))
2689 for (i = 0; i < s->reloc_count; i++)
2691 struct internal_reloc n;
2694 memset (& n, 0, sizeof (n));
2696 /* Now we've renumbered the symbols we know where the
2697 undefined symbols live in the table. Check the reloc
2698 entries for symbols who's output bfd isn't the right one.
2699 This is because the symbol was undefined (which means
2700 that all the pointers are never made to point to the same
2701 place). This is a bad thing,'cause the symbols attached
2702 to the output bfd are indexed, so that the relocation
2703 entries know which symbol index they point to. So we
2704 have to look up the output symbol here. */
2706 if (q->sym_ptr_ptr[0] != NULL && q->sym_ptr_ptr[0]->the_bfd != abfd)
2709 const char *sname = q->sym_ptr_ptr[0]->name;
2710 asymbol **outsyms = abfd->outsymbols;
2712 for (j = first_undef; outsyms[j]; j++)
2714 const char *intable = outsyms[j]->name;
2716 if (strcmp (intable, sname) == 0)
2718 /* Got a hit, so repoint the reloc. */
2719 q->sym_ptr_ptr = outsyms + j;
2725 n.r_vaddr = q->address + s->vma;
2728 /* The 29k const/consth reloc pair is a real kludge. The consth
2729 part doesn't have a symbol; it has an offset. So rebuilt
2731 if (q->howto->type == R_IHCONST)
2732 n.r_symndx = q->addend;
2735 if (q->sym_ptr_ptr && q->sym_ptr_ptr[0] != NULL)
2737 #ifdef SECTION_RELATIVE_ABSOLUTE_SYMBOL_P
2738 if (SECTION_RELATIVE_ABSOLUTE_SYMBOL_P (q, s))
2740 if ((*q->sym_ptr_ptr)->section == bfd_abs_section_ptr
2741 && ((*q->sym_ptr_ptr)->flags & BSF_SECTION_SYM) != 0)
2743 /* This is a relocation relative to the absolute symbol. */
2747 n.r_symndx = get_index ((*(q->sym_ptr_ptr)));
2748 /* Check to see if the symbol reloc points to a symbol
2749 we don't have in our symbol table. */
2750 if (n.r_symndx > obj_conv_table_size (abfd))
2752 bfd_set_error (bfd_error_bad_value);
2753 _bfd_error_handler (_("%B: reloc against a non-existant symbol index: %ld"),
2760 #ifdef SWAP_OUT_RELOC_OFFSET
2761 n.r_offset = q->addend;
2765 /* Work out reloc type from what is required. */
2766 SELECT_RELOC (n, q->howto);
2768 n.r_type = q->howto->type;
2770 coff_swap_reloc_out (abfd, &n, &dst);
2772 if (bfd_bwrite (& dst, (bfd_size_type) bfd_coff_relsz (abfd),
2773 abfd) != bfd_coff_relsz (abfd))
2786 /* Set flags and magic number of a coff file from architecture and machine
2787 type. Result is TRUE if we can represent the arch&type, FALSE if not. */
2790 coff_set_flags (bfd * abfd,
2791 unsigned int *magicp ATTRIBUTE_UNUSED,
2792 unsigned short *flagsp ATTRIBUTE_UNUSED)
2794 switch (bfd_get_arch (abfd))
2799 switch (bfd_get_mach (abfd))
2802 case bfd_mach_z80strict:
2804 case bfd_mach_z80full:
2806 *flagsp = bfd_get_mach (abfd) << 12;
2818 switch (bfd_get_mach (abfd))
2820 case bfd_mach_z8001: *flagsp = F_Z8001; break;
2821 case bfd_mach_z8002: *flagsp = F_Z8002; break;
2822 default: return FALSE;
2833 *magicp = I960ROMAGIC;
2835 switch (bfd_get_mach (abfd))
2837 case bfd_mach_i960_core: flags = F_I960CORE; break;
2838 case bfd_mach_i960_kb_sb: flags = F_I960KB; break;
2839 case bfd_mach_i960_mc: flags = F_I960MC; break;
2840 case bfd_mach_i960_xa: flags = F_I960XA; break;
2841 case bfd_mach_i960_ca: flags = F_I960CA; break;
2842 case bfd_mach_i960_ka_sa: flags = F_I960KA; break;
2843 case bfd_mach_i960_jx: flags = F_I960JX; break;
2844 case bfd_mach_i960_hx: flags = F_I960HX; break;
2845 default: return FALSE;
2854 case bfd_arch_tic30:
2855 *magicp = TIC30MAGIC;
2859 #ifdef TICOFF_DEFAULT_MAGIC
2860 case TICOFF_TARGET_ARCH:
2861 /* If there's no indication of which version we want, use the default. */
2863 *magicp = TICOFF_DEFAULT_MAGIC;
2866 /* We may want to output in a different COFF version. */
2867 switch (abfd->xvec->name[4])
2870 *magicp = TICOFF0MAGIC;
2873 *magicp = TICOFF1MAGIC;
2876 *magicp = TICOFF2MAGIC;
2882 TICOFF_TARGET_MACHINE_SET (flagsp, bfd_get_mach (abfd));
2886 #ifdef TIC80_ARCH_MAGIC
2887 case bfd_arch_tic80:
2888 *magicp = TIC80_ARCH_MAGIC;
2895 * magicp = ARMPEMAGIC;
2897 * magicp = ARMMAGIC;
2900 if (APCS_SET (abfd))
2902 if (APCS_26_FLAG (abfd))
2903 * flagsp |= F_APCS26;
2905 if (APCS_FLOAT_FLAG (abfd))
2906 * flagsp |= F_APCS_FLOAT;
2908 if (PIC_FLAG (abfd))
2911 if (INTERWORK_SET (abfd) && INTERWORK_FLAG (abfd))
2912 * flagsp |= F_INTERWORK;
2913 switch (bfd_get_mach (abfd))
2915 case bfd_mach_arm_2: * flagsp |= F_ARM_2; break;
2916 case bfd_mach_arm_2a: * flagsp |= F_ARM_2a; break;
2917 case bfd_mach_arm_3: * flagsp |= F_ARM_3; break;
2918 case bfd_mach_arm_3M: * flagsp |= F_ARM_3M; break;
2919 case bfd_mach_arm_4: * flagsp |= F_ARM_4; break;
2920 case bfd_mach_arm_4T: * flagsp |= F_ARM_4T; break;
2921 case bfd_mach_arm_5: * flagsp |= F_ARM_5; break;
2922 /* FIXME: we do not have F_ARM vaues greater than F_ARM_5.
2923 See also the comment in coff_set_arch_mach_hook(). */
2924 case bfd_mach_arm_5T: * flagsp |= F_ARM_5; break;
2925 case bfd_mach_arm_5TE: * flagsp |= F_ARM_5; break;
2926 case bfd_mach_arm_XScale: * flagsp |= F_ARM_5; break;
2932 case bfd_arch_powerpc:
2937 #if defined(I386MAGIC) || defined(AMD64MAGIC)
2939 #if defined(I386MAGIC)
2940 *magicp = I386MAGIC;
2943 /* Just overwrite the usual value if we're doing Lynx. */
2944 *magicp = LYNXCOFFMAGIC;
2946 #if defined AMD64MAGIC
2947 *magicp = AMD64MAGIC;
2954 *magicp = I860MAGIC;
2960 *magicp = IA64MAGIC;
2966 #ifdef APOLLOM68KMAGIC
2967 *magicp = APOLLO_COFF_VERSION_NUMBER;
2969 /* NAMES_HAVE_UNDERSCORE may be defined by coff-u68k.c. */
2970 #ifdef NAMES_HAVE_UNDERSCORE
2971 *magicp = MC68KBCSMAGIC;
2973 *magicp = MC68MAGIC;
2977 /* Just overwrite the usual value if we're doing Lynx. */
2978 *magicp = LYNXCOFFMAGIC;
2985 *magicp = MC88OMAGIC;
2990 case bfd_arch_h8300:
2991 switch (bfd_get_mach (abfd))
2993 case bfd_mach_h8300: *magicp = H8300MAGIC; return TRUE;
2994 case bfd_mach_h8300h: *magicp = H8300HMAGIC; return TRUE;
2995 case bfd_mach_h8300s: *magicp = H8300SMAGIC; return TRUE;
2996 case bfd_mach_h8300hn: *magicp = H8300HNMAGIC; return TRUE;
2997 case bfd_mach_h8300sn: *magicp = H8300SNMAGIC; return TRUE;
3003 #ifdef SH_ARCH_MAGIC_BIG
3005 #ifdef COFF_IMAGE_WITH_PE
3006 *magicp = SH_ARCH_MAGIC_WINCE;
3008 if (bfd_big_endian (abfd))
3009 *magicp = SH_ARCH_MAGIC_BIG;
3011 *magicp = SH_ARCH_MAGIC_LITTLE;
3016 #ifdef MIPS_ARCH_MAGIC_WINCE
3018 *magicp = MIPS_ARCH_MAGIC_WINCE;
3023 case bfd_arch_sparc:
3024 *magicp = SPARCMAGIC;
3026 /* Just overwrite the usual value if we're doing Lynx. */
3027 *magicp = LYNXCOFFMAGIC;
3033 case bfd_arch_h8500:
3034 *magicp = H8500MAGIC;
3040 case bfd_arch_we32k:
3041 *magicp = WE32KMAGIC;
3046 case bfd_arch_rs6000:
3048 case bfd_arch_powerpc:
3050 BFD_ASSERT (bfd_get_flavour (abfd) == bfd_target_xcoff_flavour);
3051 *magicp = bfd_xcoff_magic_number (abfd);
3056 case bfd_arch_mcore:
3057 * magicp = MCOREMAGIC;
3067 #ifdef OR32_MAGIC_BIG
3069 if (bfd_big_endian (abfd))
3070 * magicp = OR32_MAGIC_BIG;
3072 * magicp = OR32_MAGIC_LITTLE;
3076 default: /* Unknown architecture. */
3077 /* Fall through to "return FALSE" below, to avoid
3078 "statement never reached" errors on the one below. */
3086 coff_set_arch_mach (bfd * abfd,
3087 enum bfd_architecture arch,
3088 unsigned long machine)
3091 unsigned short dummy2;
3093 if (! bfd_default_set_arch_mach (abfd, arch, machine))
3096 if (arch != bfd_arch_unknown
3097 && ! coff_set_flags (abfd, &dummy1, &dummy2))
3098 return FALSE; /* We can't represent this type. */
3100 return TRUE; /* We're easy... */
3103 #ifdef COFF_IMAGE_WITH_PE
3105 /* This is used to sort sections by VMA, as required by PE image
3109 sort_by_secaddr (const void * arg1, const void * arg2)
3111 const asection *a = *(const asection **) arg1;
3112 const asection *b = *(const asection **) arg2;
3114 if (a->vma < b->vma)
3116 else if (a->vma > b->vma)
3122 #endif /* COFF_IMAGE_WITH_PE */
3124 /* Calculate the file position for each section. */
3127 #define ALIGN_SECTIONS_IN_FILE
3129 #if defined(TIC80COFF) || defined(TICOFF)
3130 #undef ALIGN_SECTIONS_IN_FILE
3134 coff_compute_section_file_positions (bfd * abfd)
3137 file_ptr sofar = bfd_coff_filhsz (abfd);
3138 bfd_boolean align_adjust;
3140 #ifdef ALIGN_SECTIONS_IN_FILE
3141 asection *previous = NULL;
3145 #ifdef COFF_IMAGE_WITH_PE
3148 if (coff_data (abfd)->link_info)
3150 page_size = pe_data (abfd)->pe_opthdr.FileAlignment;
3152 /* If no file alignment has been set, default to one.
3153 This repairs 'ld -r' for arm-wince-pe target. */
3158 page_size = PE_DEF_FILE_ALIGNMENT;
3160 #ifdef COFF_PAGE_SIZE
3161 int page_size = COFF_PAGE_SIZE;
3166 /* On XCOFF, if we have symbols, set up the .debug section. */
3167 if (bfd_get_symcount (abfd) > 0)
3170 bfd_size_type i, symcount;
3174 symcount = bfd_get_symcount (abfd);
3175 for (symp = abfd->outsymbols, i = 0; i < symcount; symp++, i++)
3177 coff_symbol_type *cf;
3179 cf = coff_symbol_from (abfd, *symp);
3181 && cf->native != NULL
3182 && SYMNAME_IN_DEBUG (&cf->native->u.syment))
3186 len = strlen (bfd_asymbol_name (*symp));
3187 if (len > SYMNMLEN || bfd_coff_force_symnames_in_strings (abfd))
3188 sz += len + 1 + bfd_coff_debug_string_prefix_length (abfd);
3195 dsec = bfd_make_section_old_way (abfd, DOT_DEBUG);
3199 dsec->flags |= SEC_HAS_CONTENTS;
3204 if (bfd_get_start_address (abfd))
3205 /* A start address may have been added to the original file. In this
3206 case it will need an optional header to record it. */
3207 abfd->flags |= EXEC_P;
3209 if (abfd->flags & EXEC_P)
3210 sofar += bfd_coff_aoutsz (abfd);
3212 else if (xcoff_data (abfd)->full_aouthdr)
3213 sofar += bfd_coff_aoutsz (abfd);
3215 sofar += SMALL_AOUTSZ;
3218 sofar += abfd->section_count * bfd_coff_scnhsz (abfd);
3221 /* XCOFF handles overflows in the reloc and line number count fields
3222 by allocating a new section header to hold the correct counts. */
3223 for (current = abfd->sections; current != NULL; current = current->next)
3224 if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
3225 sofar += bfd_coff_scnhsz (abfd);
3228 #ifdef COFF_IMAGE_WITH_PE
3230 /* PE requires the sections to be in memory order when listed in
3231 the section headers. It also does not like empty loadable
3232 sections. The sections apparently do not have to be in the
3233 right order in the image file itself, but we do need to get the
3234 target_index values right. */
3237 asection **section_list;
3241 #ifdef COFF_PAGE_SIZE
3242 /* Clear D_PAGED if section alignment is smaller than
3244 if (pe_data (abfd)->pe_opthdr.SectionAlignment < COFF_PAGE_SIZE)
3245 abfd->flags &= ~D_PAGED;
3249 for (current = abfd->sections; current != NULL; current = current->next)
3252 /* We allocate an extra cell to simplify the final loop. */
3253 amt = sizeof (struct asection *) * (count + 1);
3254 section_list = (asection **) bfd_malloc (amt);
3255 if (section_list == NULL)
3259 for (current = abfd->sections; current != NULL; current = current->next)
3261 section_list[i] = current;
3264 section_list[i] = NULL;
3266 qsort (section_list, count, sizeof (asection *), sort_by_secaddr);
3268 /* Rethread the linked list into sorted order; at the same time,
3269 assign target_index values. */
3271 abfd->sections = NULL;
3272 abfd->section_last = NULL;
3273 for (i = 0; i < count; i++)
3275 current = section_list[i];
3276 bfd_section_list_append (abfd, current);
3278 /* Later, if the section has zero size, we'll be throwing it
3279 away, so we don't want to number it now. Note that having
3280 a zero size and having real contents are different
3281 concepts: .bss has no contents, but (usually) non-zero
3283 if (current->size == 0)
3285 /* Discard. However, it still might have (valid) symbols
3286 in it, so arbitrarily set it to section 1 (indexing is
3287 1-based here; usually .text). __end__ and other
3288 contents of .endsection really have this happen.
3289 FIXME: This seems somewhat dubious. */
3290 current->target_index = 1;
3293 current->target_index = target_index++;
3296 free (section_list);
3298 #else /* ! COFF_IMAGE_WITH_PE */
3300 /* Set the target_index field. */
3302 for (current = abfd->sections; current != NULL; current = current->next)
3303 current->target_index = target_index++;
3305 #endif /* ! COFF_IMAGE_WITH_PE */
3307 if (target_index >= 32768)
3309 bfd_set_error (bfd_error_file_too_big);
3310 (*_bfd_error_handler)
3311 (_("%B: too many sections (%d)"), abfd, target_index);
3315 align_adjust = FALSE;
3316 for (current = abfd->sections;
3318 current = current->next)
3320 #ifdef COFF_IMAGE_WITH_PE
3321 /* With PE we have to pad each section to be a multiple of its
3322 page size too, and remember both sizes. */
3323 if (coff_section_data (abfd, current) == NULL)
3325 bfd_size_type amt = sizeof (struct coff_section_tdata);
3327 current->used_by_bfd = bfd_zalloc (abfd, amt);
3328 if (current->used_by_bfd == NULL)
3331 if (pei_section_data (abfd, current) == NULL)
3333 bfd_size_type amt = sizeof (struct pei_section_tdata);
3335 coff_section_data (abfd, current)->tdata = bfd_zalloc (abfd, amt);
3336 if (coff_section_data (abfd, current)->tdata == NULL)
3339 if (pei_section_data (abfd, current)->virt_size == 0)
3340 pei_section_data (abfd, current)->virt_size = current->size;
3343 /* Only deal with sections which have contents. */
3344 if (!(current->flags & SEC_HAS_CONTENTS))
3347 current->rawsize = current->size;
3349 #ifdef COFF_IMAGE_WITH_PE
3350 /* Make sure we skip empty sections in a PE image. */
3351 if (current->size == 0)
3355 /* Align the sections in the file to the same boundary on
3356 which they are aligned in virtual memory. I960 doesn't
3357 do this (FIXME) so we can stay in sync with Intel. 960
3358 doesn't yet page from files... */
3359 #ifdef ALIGN_SECTIONS_IN_FILE
3360 if ((abfd->flags & EXEC_P) != 0)
3362 /* Make sure this section is aligned on the right boundary - by
3363 padding the previous section up if necessary. */
3367 /* AIX loader checks the text section alignment of (vma - filepos)
3368 So even though the filepos may be aligned wrt the o_algntext, for
3369 AIX executables, this check fails. This shows up when a native
3370 AIX executable is stripped with gnu strip because the default vma
3371 of native is 0x10000150 but default for gnu is 0x10000140. Gnu
3372 stripped gnu excutable passes this check because the filepos is
3373 0x0140. This problem also show up with 64 bit shared objects. The
3374 data section must also be aligned. */
3375 if (!strcmp (current->name, _TEXT)
3376 || !strcmp (current->name, _DATA))
3381 sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
3383 align = 1 << current->alignment_power;
3384 pad = abs (current->vma - sofar) % align;
3395 sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
3398 if (previous != NULL)
3399 previous->size += sofar - old_sofar;
3404 /* In demand paged files the low order bits of the file offset
3405 must match the low order bits of the virtual address. */
3406 #ifdef COFF_PAGE_SIZE
3407 if ((abfd->flags & D_PAGED) != 0
3408 && (current->flags & SEC_ALLOC) != 0)
3409 sofar += (current->vma - (bfd_vma) sofar) % page_size;
3411 current->filepos = sofar;
3413 #ifdef COFF_IMAGE_WITH_PE
3414 /* Set the padded size. */
3415 current->size = (current->size + page_size - 1) & -page_size;
3418 sofar += current->size;
3420 #ifdef ALIGN_SECTIONS_IN_FILE
3421 /* Make sure that this section is of the right size too. */
3422 if ((abfd->flags & EXEC_P) == 0)
3424 bfd_size_type old_size;
3426 old_size = current->size;
3427 current->size = BFD_ALIGN (current->size,
3428 1 << current->alignment_power);
3429 align_adjust = current->size != old_size;
3430 sofar += current->size - old_size;
3435 sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
3436 align_adjust = sofar != old_sofar;
3437 current->size += sofar - old_sofar;
3441 #ifdef COFF_IMAGE_WITH_PE
3442 /* For PE we need to make sure we pad out to the aligned
3443 size, in case the caller only writes out data to the
3445 if (pei_section_data (abfd, current)->virt_size < current->size)
3446 align_adjust = TRUE;
3450 /* Force .lib sections to start at zero. The vma is then
3451 incremented in coff_set_section_contents. This is right for
3453 if (strcmp (current->name, _LIB) == 0)
3454 (void) bfd_set_section_vma (abfd, current, 0);
3457 #ifdef ALIGN_SECTIONS_IN_FILE
3462 /* It is now safe to write to the output file. If we needed an
3463 alignment adjustment for the last section, then make sure that
3464 there is a byte at offset sofar. If there are no symbols and no
3465 relocs, then nothing follows the last section. If we don't force
3466 the last byte out, then the file may appear to be truncated. */
3472 if (bfd_seek (abfd, sofar - 1, SEEK_SET) != 0
3473 || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1)
3477 /* Make sure the relocations are aligned. We don't need to make
3478 sure that this byte exists, because it will only matter if there
3479 really are relocs. */
3480 sofar = BFD_ALIGN (sofar, 1 << COFF_DEFAULT_SECTION_ALIGNMENT_POWER);
3482 obj_relocbase (abfd) = sofar;
3483 abfd->output_has_begun = TRUE;
3488 #ifdef COFF_IMAGE_WITH_PE
3490 static unsigned int pelength;
3491 static unsigned int peheader;
3494 coff_read_word (bfd *abfd, unsigned int *value)
3499 status = bfd_bread (b, (bfd_size_type) 2, abfd);
3507 *value = (unsigned int) b[0];
3509 *value = (unsigned int) (b[0] + (b[1] << 8));
3511 pelength += (unsigned int) status;
3517 coff_compute_checksum (bfd *abfd)
3519 bfd_boolean more_data;
3526 filepos = (file_ptr) 0;
3530 if (bfd_seek (abfd, filepos, SEEK_SET) != 0)
3533 more_data = coff_read_word (abfd, &value);
3535 total = 0xffff & (total + (total >> 0x10));
3540 return (0xffff & (total + (total >> 0x10)));
3544 coff_apply_checksum (bfd *abfd)
3546 unsigned int computed;
3547 unsigned int checksum = 0;
3549 if (bfd_seek (abfd, 0x3c, SEEK_SET) != 0)
3552 if (!coff_read_word (abfd, &peheader))
3555 if (bfd_seek (abfd, peheader + 0x58, SEEK_SET) != 0)
3559 bfd_bwrite (&checksum, (bfd_size_type) 4, abfd);
3561 if (bfd_seek (abfd, peheader, SEEK_SET) != 0)
3564 computed = coff_compute_checksum (abfd);
3566 checksum = computed + pelength;
3568 if (bfd_seek (abfd, peheader + 0x58, SEEK_SET) != 0)
3571 bfd_bwrite (&checksum, (bfd_size_type) 4, abfd);
3576 #endif /* COFF_IMAGE_WITH_PE */
3579 coff_write_object_contents (bfd * abfd)
3582 bfd_boolean hasrelocs = FALSE;
3583 bfd_boolean haslinno = FALSE;
3584 #ifdef COFF_IMAGE_WITH_PE
3585 bfd_boolean hasdebug = FALSE;
3588 file_ptr reloc_base;
3589 file_ptr lineno_base;
3591 unsigned long reloc_size = 0, reloc_count = 0;
3592 unsigned long lnno_size = 0;
3593 bfd_boolean long_section_names;
3594 asection *text_sec = NULL;
3595 asection *data_sec = NULL;
3596 asection *bss_sec = NULL;
3597 struct internal_filehdr internal_f;
3598 struct internal_aouthdr internal_a;
3599 #ifdef COFF_LONG_SECTION_NAMES
3600 size_t string_size = STRING_SIZE_SIZE;
3603 bfd_set_error (bfd_error_system_call);
3605 /* Make a pass through the symbol table to count line number entries and
3606 put them into the correct asections. */
3607 lnno_size = coff_count_linenumbers (abfd) * bfd_coff_linesz (abfd);
3609 if (! abfd->output_has_begun)
3611 if (! coff_compute_section_file_positions (abfd))
3615 reloc_base = obj_relocbase (abfd);
3617 /* Work out the size of the reloc and linno areas. */
3619 for (current = abfd->sections; current != NULL; current =
3623 /* We store the actual reloc count in the first reloc's addr. */
3624 if (obj_pe (abfd) && current->reloc_count >= 0xffff)
3627 reloc_count += current->reloc_count;
3630 reloc_size = reloc_count * bfd_coff_relsz (abfd);
3632 lineno_base = reloc_base + reloc_size;
3633 sym_base = lineno_base + lnno_size;
3635 /* Indicate in each section->line_filepos its actual file address. */
3636 for (current = abfd->sections; current != NULL; current =
3639 if (current->lineno_count)
3641 current->line_filepos = lineno_base;
3642 current->moving_line_filepos = lineno_base;
3643 lineno_base += current->lineno_count * bfd_coff_linesz (abfd);
3646 current->line_filepos = 0;
3648 if (current->reloc_count)
3650 current->rel_filepos = reloc_base;
3651 reloc_base += current->reloc_count * bfd_coff_relsz (abfd);
3653 /* Extra reloc to hold real count. */
3654 if (obj_pe (abfd) && current->reloc_count >= 0xffff)
3655 reloc_base += bfd_coff_relsz (abfd);
3659 current->rel_filepos = 0;
3662 /* Write section headers to the file. */
3663 internal_f.f_nscns = 0;
3665 if ((abfd->flags & EXEC_P) != 0)
3666 scn_base = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd);
3669 scn_base = bfd_coff_filhsz (abfd);
3672 if (xcoff_data (abfd)->full_aouthdr)
3673 scn_base += bfd_coff_aoutsz (abfd);
3675 scn_base += SMALL_AOUTSZ;
3680 if (bfd_seek (abfd, scn_base, SEEK_SET) != 0)
3683 long_section_names = FALSE;
3684 for (current = abfd->sections;
3686 current = current->next)
3688 struct internal_scnhdr section;
3689 #ifdef COFF_IMAGE_WITH_PE
3690 bfd_boolean is_reloc_section = FALSE;
3692 if (strcmp (current->name, DOT_RELOC) == 0)
3694 is_reloc_section = TRUE;
3696 pe_data (abfd)->has_reloc_section = 1;
3700 internal_f.f_nscns++;
3702 strncpy (section.s_name, current->name, SCNNMLEN);
3704 #ifdef COFF_LONG_SECTION_NAMES
3705 /* Handle long section names as in PE. This must be compatible
3706 with the code in coff_write_symbols and _bfd_coff_final_link. */
3707 if (bfd_coff_long_section_names (abfd))
3711 len = strlen (current->name);
3714 /* The s_name field is defined to be NUL-padded but need not be
3715 NUL-terminated. We use a temporary buffer so that we can still
3716 sprintf all eight chars without splatting a terminating NUL
3717 over the first byte of the following member (s_paddr). */
3718 char s_name_buf[SCNNMLEN + 1];
3720 /* An inherent limitation of the /nnnnnnn notation used to indicate
3721 the offset of the long name in the string table is that we
3722 cannot address entries beyone the ten million byte boundary. */
3723 if (string_size >= 10000000)
3725 bfd_set_error (bfd_error_file_too_big);
3726 (*_bfd_error_handler)
3727 (_("%B: section %s: string table overflow at offset %ld"),
3728 abfd, current->name, string_size);
3732 /* snprintf not strictly necessary now we've verified the value
3733 has less than eight ASCII digits, but never mind. */
3734 snprintf (s_name_buf, SCNNMLEN + 1, "/%lu", (unsigned long) string_size);
3735 /* Then strncpy takes care of any padding for us. */
3736 strncpy (section.s_name, s_name_buf, SCNNMLEN);
3737 string_size += len + 1;
3738 long_section_names = TRUE;
3744 /* Always set s_vaddr of .lib to 0. This is right for SVR3.2
3745 Ian Taylor <ian@cygnus.com>. */
3746 if (strcmp (current->name, _LIB) == 0)
3747 section.s_vaddr = 0;
3750 section.s_vaddr = current->vma;
3751 section.s_paddr = current->lma;
3752 section.s_size = current->size;
3753 #ifdef coff_get_section_load_page
3754 section.s_page = coff_get_section_load_page (current);
3760 section.s_paddr = 0;
3762 #ifdef COFF_IMAGE_WITH_PE
3763 /* Reminder: s_paddr holds the virtual size of the section. */
3764 if (coff_section_data (abfd, current) != NULL
3765 && pei_section_data (abfd, current) != NULL)
3766 section.s_paddr = pei_section_data (abfd, current)->virt_size;
3768 section.s_paddr = 0;
3771 /* If this section has no size or is unloadable then the scnptr
3773 if (current->size == 0
3774 || (current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
3775 section.s_scnptr = 0;
3777 section.s_scnptr = current->filepos;
3779 section.s_relptr = current->rel_filepos;
3780 section.s_lnnoptr = current->line_filepos;
3781 section.s_nreloc = current->reloc_count;
3782 section.s_nlnno = current->lineno_count;
3783 #ifndef COFF_IMAGE_WITH_PE
3784 /* In PEI, relocs come in the .reloc section. */
3785 if (current->reloc_count != 0)
3788 if (current->lineno_count != 0)
3790 #ifdef COFF_IMAGE_WITH_PE
3791 if ((current->flags & SEC_DEBUGGING) != 0
3792 && ! is_reloc_section)
3798 /* Indicate the use of an XCOFF overflow section header. */
3799 if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
3801 section.s_nreloc = 0xffff;
3802 section.s_nlnno = 0xffff;
3807 section.s_flags = sec_to_styp_flags (current->name, current->flags);
3809 if (!strcmp (current->name, _TEXT))
3811 else if (!strcmp (current->name, _DATA))
3813 else if (!strcmp (current->name, _BSS))
3817 section.s_align = (current->alignment_power
3818 ? 1 << current->alignment_power
3822 /* TI COFF puts the alignment power in bits 8-11 of the flags. */
3823 section.s_flags |= (current->alignment_power & 0xF) << 8;
3825 #ifdef COFF_ENCODE_ALIGNMENT
3826 COFF_ENCODE_ALIGNMENT(section, current->alignment_power);
3829 #ifdef COFF_IMAGE_WITH_PE
3830 /* Suppress output of the sections if they are null. ld
3831 includes the bss and data sections even if there is no size
3832 assigned to them. NT loader doesn't like it if these section
3833 headers are included if the sections themselves are not
3834 needed. See also coff_compute_section_file_positions. */
3835 if (section.s_size == 0)
3836 internal_f.f_nscns--;
3841 bfd_size_type amt = bfd_coff_scnhsz (abfd);
3843 if (coff_swap_scnhdr_out (abfd, §ion, &buff) == 0
3844 || bfd_bwrite (& buff, amt, abfd) != amt)
3849 /* PE stores COMDAT section information in the symbol table. If
3850 this section is supposed to have some COMDAT info, track down
3851 the symbol in the symbol table and modify it. */
3852 if ((current->flags & SEC_LINK_ONCE) != 0)
3854 unsigned int i, count;
3856 coff_symbol_type *csym = NULL;
3860 count = bfd_get_symcount (abfd);
3861 for (i = 0, psym = abfd->outsymbols; i < count; i++, psym++)
3863 if ((*psym)->section != current)
3866 /* Remember the location of the first symbol in this
3868 if (psymsec == NULL)
3871 /* See if this is the section symbol. */
3872 if (strcmp ((*psym)->name, current->name) == 0)
3874 csym = coff_symbol_from (abfd, *psym);
3876 || csym->native == NULL
3877 || csym->native->u.syment.n_numaux < 1
3878 || csym->native->u.syment.n_sclass != C_STAT
3879 || csym->native->u.syment.n_type != T_NULL)
3882 /* Here *PSYM is the section symbol for CURRENT. */
3889 Note that we might not if we're converting the file from
3890 some other object file format. */
3893 combined_entry_type *aux;
3895 /* We don't touch the x_checksum field. The
3896 x_associated field is not currently supported. */
3898 aux = csym->native + 1;
3899 switch (current->flags & SEC_LINK_DUPLICATES)
3901 case SEC_LINK_DUPLICATES_DISCARD:
3902 aux->u.auxent.x_scn.x_comdat = IMAGE_COMDAT_SELECT_ANY;
3905 case SEC_LINK_DUPLICATES_ONE_ONLY:
3906 aux->u.auxent.x_scn.x_comdat =
3907 IMAGE_COMDAT_SELECT_NODUPLICATES;
3910 case SEC_LINK_DUPLICATES_SAME_SIZE:
3911 aux->u.auxent.x_scn.x_comdat =
3912 IMAGE_COMDAT_SELECT_SAME_SIZE;
3915 case SEC_LINK_DUPLICATES_SAME_CONTENTS:
3916 aux->u.auxent.x_scn.x_comdat =
3917 IMAGE_COMDAT_SELECT_EXACT_MATCH;
3921 /* The COMDAT symbol must be the first symbol from this
3922 section in the symbol table. In order to make this
3923 work, we move the COMDAT symbol before the first
3924 symbol we found in the search above. It's OK to
3925 rearrange the symbol table at this point, because
3926 coff_renumber_symbols is going to rearrange it
3927 further and fix up all the aux entries. */
3928 if (psym != psymsec)
3934 for (pcopy = psym; pcopy > psymsec; pcopy--)
3935 pcopy[0] = pcopy[-1];
3940 #endif /* COFF_WITH_PE */
3945 /* XCOFF handles overflows in the reloc and line number count fields
3946 by creating a new section header to hold the correct values. */
3947 for (current = abfd->sections; current != NULL; current = current->next)
3949 if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
3951 struct internal_scnhdr scnhdr;
3955 internal_f.f_nscns++;
3956 strncpy (&(scnhdr.s_name[0]), current->name, 8);
3957 scnhdr.s_paddr = current->reloc_count;
3958 scnhdr.s_vaddr = current->lineno_count;
3960 scnhdr.s_scnptr = 0;
3961 scnhdr.s_relptr = current->rel_filepos;
3962 scnhdr.s_lnnoptr = current->line_filepos;
3963 scnhdr.s_nreloc = current->target_index;
3964 scnhdr.s_nlnno = current->target_index;
3965 scnhdr.s_flags = STYP_OVRFLO;
3966 amt = bfd_coff_scnhsz (abfd);
3967 if (coff_swap_scnhdr_out (abfd, &scnhdr, &buff) == 0
3968 || bfd_bwrite (& buff, amt, abfd) != amt)
3975 /* OK, now set up the filehdr... */
3977 /* Don't include the internal abs section in the section count */
3979 /* We will NOT put a fucking timestamp in the header here. Every time you
3980 put it back, I will come in and take it out again. I'm sorry. This
3981 field does not belong here. We fill it with a 0 so it compares the
3982 same but is not a reasonable time. -- gnu@cygnus.com */
3983 internal_f.f_timdat = 0;
3984 internal_f.f_flags = 0;
3986 if (abfd->flags & EXEC_P)
3987 internal_f.f_opthdr = bfd_coff_aoutsz (abfd);
3990 internal_f.f_opthdr = 0;
3993 if (xcoff_data (abfd)->full_aouthdr)
3994 internal_f.f_opthdr = bfd_coff_aoutsz (abfd);
3996 internal_f.f_opthdr = SMALL_AOUTSZ;
4002 internal_f.f_flags |= F_RELFLG;
4004 internal_f.f_flags |= F_LNNO;
4005 if (abfd->flags & EXEC_P)
4006 internal_f.f_flags |= F_EXEC;
4007 #ifdef COFF_IMAGE_WITH_PE
4009 internal_f.f_flags |= IMAGE_FILE_DEBUG_STRIPPED;
4010 if (pe_data (abfd)->real_flags & IMAGE_FILE_LARGE_ADDRESS_AWARE)
4011 internal_f.f_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE;
4014 #ifndef COFF_WITH_pex64
4016 internal_f.f_flags |= IMAGE_FILE_32BIT_MACHINE;
4018 if (bfd_little_endian (abfd))
4019 internal_f.f_flags |= F_AR32WR;
4021 internal_f.f_flags |= F_AR32W;
4026 /* Target id is used in TI COFF v1 and later; COFF0 won't use this field,
4027 but it doesn't hurt to set it internally. */
4028 internal_f.f_target_id = TI_TARGET_ID;
4030 #ifdef TIC80_TARGET_ID
4031 internal_f.f_target_id = TIC80_TARGET_ID;
4034 /* FIXME, should do something about the other byte orders and
4038 if ((abfd->flags & DYNAMIC) != 0)
4039 internal_f.f_flags |= F_SHROBJ;
4040 if (bfd_get_section_by_name (abfd, _LOADER) != NULL)
4041 internal_f.f_flags |= F_DYNLOAD;
4044 memset (&internal_a, 0, sizeof internal_a);
4046 /* Set up architecture-dependent stuff. */
4048 unsigned int magic = 0;
4049 unsigned short flags = 0;
4051 coff_set_flags (abfd, &magic, &flags);
4052 internal_f.f_magic = magic;
4053 internal_f.f_flags |= flags;
4054 /* ...and the "opt"hdr... */
4056 #ifdef TICOFF_AOUT_MAGIC
4057 internal_a.magic = TICOFF_AOUT_MAGIC;
4058 #define __A_MAGIC_SET__
4061 internal_a.magic = TIC80_ARCH_MAGIC;
4062 #define __A_MAGIC_SET__
4065 /* FIXME: What are the a.out magic numbers for the i860? */
4066 internal_a.magic = 0;
4067 #define __A_MAGIC_SET__
4070 internal_a.magic = (magic == I960ROMAGIC ? NMAGIC : OMAGIC);
4071 #define __A_MAGIC_SET__
4074 #define __A_MAGIC_SET__
4075 internal_a.magic = PAGEMAGICBCS;
4079 #define __A_MAGIC_SET__
4080 internal_a.magic = APOLLO_COFF_VERSION_NUMBER;
4083 #if defined(M68) || defined(WE32K) || defined(M68K)
4084 #define __A_MAGIC_SET__
4086 internal_a.magic = LYNXCOFFMAGIC;
4088 #if defined(TARG_AUX)
4089 internal_a.magic = (abfd->flags & D_PAGED ? PAGEMAGICPEXECPAGED :
4090 abfd->flags & WP_TEXT ? PAGEMAGICPEXECSWAPPED :
4091 PAGEMAGICEXECSWAPPED);
4093 #if defined (PAGEMAGICPEXECPAGED)
4094 internal_a.magic = PAGEMAGICPEXECPAGED;
4096 #endif /* TARG_AUX */
4098 #endif /* M68 || WE32K || M68K */
4101 #define __A_MAGIC_SET__
4102 internal_a.magic = ZMAGIC;
4106 #define __A_MAGIC_SET__
4107 internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC;
4110 #if defined MCORE_PE
4111 #define __A_MAGIC_SET__
4112 internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC;
4116 #define __A_MAGIC_SET__
4118 internal_a.magic = LYNXCOFFMAGIC;
4120 internal_a.magic = IMAGE_NT_OPTIONAL_HDR64_MAGIC;
4122 internal_a.magic = ZMAGIC;
4127 #define __A_MAGIC_SET__
4128 internal_a.magic = PE32PMAGIC;
4132 #define __A_MAGIC_SET__
4134 internal_a.magic = LYNXCOFFMAGIC;
4139 #define __A_MAGIC_SET__
4140 internal_a.magic = (abfd->flags & D_PAGED) ? RS6K_AOUTHDR_ZMAGIC :
4141 (abfd->flags & WP_TEXT) ? RS6K_AOUTHDR_NMAGIC :
4142 RS6K_AOUTHDR_OMAGIC;
4145 #if defined(SH) && defined(COFF_WITH_PE)
4146 #define __A_MAGIC_SET__
4147 internal_a.magic = SH_PE_MAGIC;
4150 #if defined(MIPS) && defined(COFF_WITH_PE)
4151 #define __A_MAGIC_SET__
4152 internal_a.magic = MIPS_PE_MAGIC;
4156 #define __A_MAGIC_SET__
4157 internal_a.magic = NMAGIC; /* Assume separate i/d. */
4160 #ifndef __A_MAGIC_SET__
4161 #include "Your aouthdr magic number is not being set!"
4163 #undef __A_MAGIC_SET__
4167 /* FIXME: Does anybody ever set this to another value? */
4168 internal_a.vstamp = 0;
4170 /* Now should write relocs, strings, syms. */
4171 obj_sym_filepos (abfd) = sym_base;
4173 if (bfd_get_symcount (abfd) != 0)
4177 if (!coff_renumber_symbols (abfd, &firstundef))
4179 coff_mangle_symbols (abfd);
4180 if (! coff_write_symbols (abfd))
4182 if (! coff_write_linenumbers (abfd))
4184 if (! coff_write_relocs (abfd, firstundef))
4187 #ifdef COFF_LONG_SECTION_NAMES
4188 else if (long_section_names && ! obj_coff_strings_written (abfd))
4190 /* If we have long section names we have to write out the string
4191 table even if there are no symbols. */
4192 if (! coff_write_symbols (abfd))
4196 #ifdef COFF_IMAGE_WITH_PE
4198 else if ((abfd->flags & EXEC_P) != 0)
4202 /* PowerPC PE appears to require that all executable files be
4203 rounded up to the page size. */
4206 (file_ptr) BFD_ALIGN (sym_base, COFF_PAGE_SIZE) - 1,
4208 || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1)
4214 /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF
4215 backend linker, and obj_raw_syment_count is not valid until after
4216 coff_write_symbols is called. */
4217 if (obj_raw_syment_count (abfd) != 0)
4219 internal_f.f_symptr = sym_base;
4221 /* AIX appears to require that F_RELFLG not be set if there are
4222 local symbols but no relocations. */
4223 internal_f.f_flags &=~ F_RELFLG;
4228 if (long_section_names)
4229 internal_f.f_symptr = sym_base;
4231 internal_f.f_symptr = 0;
4232 internal_f.f_flags |= F_LSYMS;
4237 internal_a.tsize = text_sec->size;
4238 internal_a.text_start = internal_a.tsize ? text_sec->vma : 0;
4242 internal_a.dsize = data_sec->size;
4243 internal_a.data_start = internal_a.dsize ? data_sec->vma : 0;
4247 internal_a.bsize = bss_sec->size;
4248 if (internal_a.bsize && bss_sec->vma < internal_a.data_start)
4249 internal_a.data_start = bss_sec->vma;
4252 internal_a.entry = bfd_get_start_address (abfd);
4253 internal_f.f_nsyms = obj_raw_syment_count (abfd);
4256 if (xcoff_data (abfd)->full_aouthdr)
4259 asection *loader_sec;
4261 internal_a.vstamp = 1;
4263 internal_a.o_snentry = xcoff_data (abfd)->snentry;
4264 if (internal_a.o_snentry == 0)
4265 internal_a.entry = (bfd_vma) -1;
4267 if (text_sec != NULL)
4269 internal_a.o_sntext = text_sec->target_index;
4270 internal_a.o_algntext = bfd_get_section_alignment (abfd, text_sec);
4274 internal_a.o_sntext = 0;
4275 internal_a.o_algntext = 0;
4277 if (data_sec != NULL)
4279 internal_a.o_sndata = data_sec->target_index;
4280 internal_a.o_algndata = bfd_get_section_alignment (abfd, data_sec);
4284 internal_a.o_sndata = 0;
4285 internal_a.o_algndata = 0;
4287 loader_sec = bfd_get_section_by_name (abfd, ".loader");
4288 if (loader_sec != NULL)
4289 internal_a.o_snloader = loader_sec->target_index;
4291 internal_a.o_snloader = 0;
4292 if (bss_sec != NULL)
4293 internal_a.o_snbss = bss_sec->target_index;
4295 internal_a.o_snbss = 0;
4297 toc = xcoff_data (abfd)->toc;
4298 internal_a.o_toc = toc;
4299 internal_a.o_sntoc = xcoff_data (abfd)->sntoc;
4301 internal_a.o_modtype = xcoff_data (abfd)->modtype;
4302 if (xcoff_data (abfd)->cputype != -1)
4303 internal_a.o_cputype = xcoff_data (abfd)->cputype;
4306 switch (bfd_get_arch (abfd))
4308 case bfd_arch_rs6000:
4309 internal_a.o_cputype = 4;
4311 case bfd_arch_powerpc:
4312 if (bfd_get_mach (abfd) == bfd_mach_ppc)
4313 internal_a.o_cputype = 3;
4315 internal_a.o_cputype = 1;
4321 internal_a.o_maxstack = xcoff_data (abfd)->maxstack;
4322 internal_a.o_maxdata = xcoff_data (abfd)->maxdata;
4326 /* Now write them. */
4327 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
4332 bfd_size_type amount = bfd_coff_filhsz (abfd);
4334 buff = (char *) bfd_malloc (amount);
4338 bfd_coff_swap_filehdr_out (abfd, & internal_f, buff);
4339 amount = bfd_bwrite (buff, amount, abfd);
4343 if (amount != bfd_coff_filhsz (abfd))
4347 if (abfd->flags & EXEC_P)
4349 /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR.
4350 include/coff/pe.h sets AOUTSZ == sizeof (PEAOUTHDR)). */
4352 bfd_size_type amount = bfd_coff_aoutsz (abfd);
4354 buff = (char *) bfd_malloc (amount);
4358 coff_swap_aouthdr_out (abfd, & internal_a, buff);
4359 amount = bfd_bwrite (buff, amount, abfd);
4363 if (amount != bfd_coff_aoutsz (abfd))
4366 #ifdef COFF_IMAGE_WITH_PE
4367 if (! coff_apply_checksum (abfd))
4377 /* XCOFF seems to always write at least a small a.out header. */
4378 coff_swap_aouthdr_out (abfd, & internal_a, & buff);
4379 if (xcoff_data (abfd)->full_aouthdr)
4380 size = bfd_coff_aoutsz (abfd);
4382 size = SMALL_AOUTSZ;
4383 if (bfd_bwrite (& buff, (bfd_size_type) size, abfd) != size)
4392 coff_set_section_contents (bfd * abfd,
4394 const void * location,
4396 bfd_size_type count)
4398 if (! abfd->output_has_begun) /* Set by bfd.c handler. */
4400 if (! coff_compute_section_file_positions (abfd))
4404 #if defined(_LIB) && !defined(TARG_AUX)
4405 /* The physical address field of a .lib section is used to hold the
4406 number of shared libraries in the section. This code counts the
4407 number of sections being written, and increments the lma field
4410 I have found no documentation on the contents of this section.
4411 Experimentation indicates that the section contains zero or more
4412 records, each of which has the following structure:
4414 - a (four byte) word holding the length of this record, in words,
4415 - a word that always seems to be set to "2",
4416 - the path to a shared library, null-terminated and then padded
4417 to a whole word boundary.
4419 bfd_assert calls have been added to alert if an attempt is made
4420 to write a section which doesn't follow these assumptions. The
4421 code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe
4422 <robertl@arnet.com> (Thanks!).
4424 Gvran Uddeborg <gvran@uddeborg.pp.se>. */
4425 if (strcmp (section->name, _LIB) == 0)
4427 bfd_byte *rec, *recend;
4429 rec = (bfd_byte *) location;
4430 recend = rec + count;
4431 while (rec < recend)
4434 rec += bfd_get_32 (abfd, rec) * 4;
4437 BFD_ASSERT (rec == recend);
4441 /* Don't write out bss sections - one way to do this is to
4442 see if the filepos has not been set. */
4443 if (section->filepos == 0)
4446 if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0)
4452 return bfd_bwrite (location, count, abfd) == count;
4456 buy_and_read (bfd *abfd, file_ptr where, bfd_size_type size)
4458 void * area = bfd_alloc (abfd, size);
4462 if (bfd_seek (abfd, where, SEEK_SET) != 0
4463 || bfd_bread (area, size, abfd) != size)
4472 Creating the linenumber table is done by reading in the entire
4473 coff linenumber table, and creating another table for internal use.
4475 A coff linenumber table is structured so that each function
4476 is marked as having a line number of 0. Each line within the
4477 function is an offset from the first line in the function. The
4478 base of the line number information for the table is stored in
4479 the symbol associated with the function.
4481 Note: The PE format uses line number 0 for a flag indicating a
4484 The information is copied from the external to the internal
4485 table, and each symbol which marks a function is marked by
4488 How does this work ?
4492 coff_sort_func_alent (const void * arg1, const void * arg2)
4494 const alent *al1 = *(const alent **) arg1;
4495 const alent *al2 = *(const alent **) arg2;
4496 const coff_symbol_type *s1 = (const coff_symbol_type *) (al1->u.sym);
4497 const coff_symbol_type *s2 = (const coff_symbol_type *) (al2->u.sym);
4499 if (s1->symbol.value < s2->symbol.value)
4501 else if (s1->symbol.value > s2->symbol.value)
4508 coff_slurp_line_table (bfd *abfd, asection *asect)
4510 LINENO *native_lineno;
4511 alent *lineno_cache;
4513 unsigned int counter;
4515 bfd_vma prev_offset = 0;
4517 unsigned int nbr_func;
4520 BFD_ASSERT (asect->lineno == NULL);
4522 amt = ((bfd_size_type) asect->lineno_count + 1) * sizeof (alent);
4523 lineno_cache = (alent *) bfd_alloc (abfd, amt);
4524 if (lineno_cache == NULL)
4527 amt = (bfd_size_type) bfd_coff_linesz (abfd) * asect->lineno_count;
4528 native_lineno = (LINENO *) buy_and_read (abfd, asect->line_filepos, amt);
4529 if (native_lineno == NULL)
4531 (*_bfd_error_handler)
4532 (_("%B: warning: line number table read failed"), abfd);
4533 bfd_release (abfd, lineno_cache);
4537 cache_ptr = lineno_cache;
4538 asect->lineno = lineno_cache;
4539 src = native_lineno;
4542 for (counter = 0; counter < asect->lineno_count; counter++)
4544 struct internal_lineno dst;
4546 bfd_coff_swap_lineno_in (abfd, src, &dst);
4547 cache_ptr->line_number = dst.l_lnno;
4549 if (cache_ptr->line_number == 0)
4552 bfd_signed_vma symndx;
4553 coff_symbol_type *sym;
4557 symndx = dst.l_addr.l_symndx;
4559 || (bfd_vma) symndx >= obj_raw_syment_count (abfd))
4561 (*_bfd_error_handler)
4562 (_("%B: warning: illegal symbol index %ld in line numbers"),
4563 abfd, (long) symndx);
4568 /* FIXME: We should not be casting between ints and
4569 pointers like this. */
4570 sym = ((coff_symbol_type *)
4571 ((symndx + obj_raw_syments (abfd))
4572 ->u.syment._n._n_n._n_zeroes));
4573 cache_ptr->u.sym = (asymbol *) sym;
4574 if (sym->lineno != NULL && ! warned)
4575 (*_bfd_error_handler)
4576 (_("%B: warning: duplicate line number information for `%s'"),
4577 abfd, bfd_asymbol_name (&sym->symbol));
4579 sym->lineno = cache_ptr;
4580 if (sym->symbol.value < prev_offset)
4582 prev_offset = sym->symbol.value;
4585 cache_ptr->u.offset = dst.l_addr.l_paddr
4586 - bfd_section_vma (abfd, asect);
4591 cache_ptr->line_number = 0;
4592 bfd_release (abfd, native_lineno);
4594 /* On some systems (eg AIX5.3) the lineno table may not be sorted. */
4597 /* Sort the table. */
4599 alent *n_lineno_cache;
4601 /* Create a table of functions. */
4602 func_table = (alent **) bfd_alloc (abfd, nbr_func * sizeof (alent *));
4603 if (func_table != NULL)
4605 alent **p = func_table;
4608 for (i = 0; i < counter; i++)
4609 if (lineno_cache[i].line_number == 0)
4610 *p++ = &lineno_cache[i];
4612 /* Sort by functions. */
4613 qsort (func_table, nbr_func, sizeof (alent *), coff_sort_func_alent);
4615 /* Create the new sorted table. */
4616 amt = ((bfd_size_type) asect->lineno_count + 1) * sizeof (alent);
4617 n_lineno_cache = (alent *) bfd_alloc (abfd, amt);
4618 if (n_lineno_cache != NULL)
4620 alent *n_cache_ptr = n_lineno_cache;
4622 for (i = 0; i < nbr_func; i++)
4624 coff_symbol_type *sym;
4625 alent *old_ptr = func_table[i];
4627 /* Copy the function entry and update it. */
4628 *n_cache_ptr = *old_ptr;
4629 sym = (coff_symbol_type *)n_cache_ptr->u.sym;
4630 sym->lineno = n_cache_ptr;
4634 /* Copy the line number entries. */
4635 while (old_ptr->line_number != 0)
4636 *n_cache_ptr++ = *old_ptr++;
4638 n_cache_ptr->line_number = 0;
4639 memcpy (lineno_cache, n_lineno_cache, amt);
4641 bfd_release (abfd, func_table);
4648 /* Slurp in the symbol table, converting it to generic form. Note
4649 that if coff_relocate_section is defined, the linker will read
4650 symbols via coff_link_add_symbols, rather than via this routine. */
4653 coff_slurp_symbol_table (bfd * abfd)
4655 combined_entry_type *native_symbols;
4656 coff_symbol_type *cached_area;
4657 unsigned int *table_ptr;
4659 unsigned int number_of_symbols = 0;
4661 if (obj_symbols (abfd))
4664 /* Read in the symbol table. */
4665 if ((native_symbols = coff_get_normalized_symtab (abfd)) == NULL)
4668 /* Allocate enough room for all the symbols in cached form. */
4669 amt = obj_raw_syment_count (abfd);
4670 amt *= sizeof (coff_symbol_type);
4671 cached_area = (coff_symbol_type *) bfd_alloc (abfd, amt);
4672 if (cached_area == NULL)
4675 amt = obj_raw_syment_count (abfd);
4676 amt *= sizeof (unsigned int);
4677 table_ptr = (unsigned int *) bfd_alloc (abfd, amt);
4679 if (table_ptr == NULL)
4683 coff_symbol_type *dst = cached_area;
4684 unsigned int last_native_index = obj_raw_syment_count (abfd);
4685 unsigned int this_index = 0;
4687 while (this_index < last_native_index)
4689 combined_entry_type *src = native_symbols + this_index;
4690 table_ptr[this_index] = number_of_symbols;
4691 dst->symbol.the_bfd = abfd;
4693 dst->symbol.name = (char *) (src->u.syment._n._n_n._n_offset);
4694 /* We use the native name field to point to the cached field. */
4695 src->u.syment._n._n_n._n_zeroes = (bfd_hostptr_t) dst;
4696 dst->symbol.section = coff_section_from_bfd_index (abfd,
4697 src->u.syment.n_scnum);
4698 dst->symbol.flags = 0;
4699 dst->done_lineno = FALSE;
4701 switch (src->u.syment.n_sclass)
4705 /* Fall through to next case. */
4712 case C_THUMBEXTFUNC:
4718 case C_SYSTEM: /* System Wide variable. */
4721 /* In PE, 0x68 (104) denotes a section symbol. */
4723 /* In PE, 0x69 (105) denotes a weak external symbol. */
4726 switch (coff_classify_symbol (abfd, &src->u.syment))
4728 case COFF_SYMBOL_GLOBAL:
4729 dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL;
4730 #if defined COFF_WITH_PE
4731 /* PE sets the symbol to a value relative to the
4732 start of the section. */
4733 dst->symbol.value = src->u.syment.n_value;
4735 dst->symbol.value = (src->u.syment.n_value
4736 - dst->symbol.section->vma);
4738 if (ISFCN ((src->u.syment.n_type)))
4739 /* A function ext does not go at the end of a
4741 dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION;
4744 case COFF_SYMBOL_COMMON:
4745 dst->symbol.section = bfd_com_section_ptr;
4746 dst->symbol.value = src->u.syment.n_value;
4749 case COFF_SYMBOL_UNDEFINED:
4750 dst->symbol.section = bfd_und_section_ptr;
4751 dst->symbol.value = 0;
4754 case COFF_SYMBOL_PE_SECTION:
4755 dst->symbol.flags |= BSF_EXPORT | BSF_SECTION_SYM;
4756 dst->symbol.value = 0;
4759 case COFF_SYMBOL_LOCAL:
4760 dst->symbol.flags = BSF_LOCAL;
4761 #if defined COFF_WITH_PE
4762 /* PE sets the symbol to a value relative to the
4763 start of the section. */
4764 dst->symbol.value = src->u.syment.n_value;
4766 dst->symbol.value = (src->u.syment.n_value
4767 - dst->symbol.section->vma);
4769 if (ISFCN ((src->u.syment.n_type)))
4770 dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION;
4775 /* A symbol with a csect entry should not go at the end. */
4776 if (src->u.syment.n_numaux > 0)
4777 dst->symbol.flags |= BSF_NOT_AT_END;
4781 if (src->u.syment.n_sclass == C_NT_WEAK)
4782 dst->symbol.flags |= BSF_WEAK;
4784 if (src->u.syment.n_sclass == C_SECTION
4785 && src->u.syment.n_scnum > 0)
4786 dst->symbol.flags = BSF_LOCAL;
4788 if (src->u.syment.n_sclass == C_WEAKEXT)
4789 dst->symbol.flags |= BSF_WEAK;
4793 case C_STAT: /* Static. */
4795 case C_LEAFSTAT: /* Static leaf procedure. */
4798 case C_THUMBSTAT: /* Thumb static. */
4799 case C_THUMBLABEL: /* Thumb label. */
4800 case C_THUMBSTATFUNC:/* Thumb static function. */
4803 case C_DWARF: /* A label in a dwarf section. */
4804 case C_INFO: /* A label in a comment section. */
4806 case C_LABEL: /* Label. */
4807 if (src->u.syment.n_scnum == N_DEBUG)
4808 dst->symbol.flags = BSF_DEBUGGING;
4810 dst->symbol.flags = BSF_LOCAL;
4812 /* Base the value as an index from the base of the
4813 section, if there is one. */
4814 if (dst->symbol.section)
4816 #if defined COFF_WITH_PE
4817 /* PE sets the symbol to a value relative to the
4818 start of the section. */
4819 dst->symbol.value = src->u.syment.n_value;
4821 dst->symbol.value = (src->u.syment.n_value
4822 - dst->symbol.section->vma);
4826 dst->symbol.value = src->u.syment.n_value;
4829 case C_MOS: /* Member of structure. */
4830 case C_EOS: /* End of structure. */
4831 case C_REGPARM: /* Register parameter. */
4832 case C_REG: /* register variable. */
4833 /* C_AUTOARG conflicts with TI COFF C_UEXT. */
4834 #if !defined (TIC80COFF) && !defined (TICOFF)
4836 case C_AUTOARG: /* 960-specific storage class. */
4839 case C_TPDEF: /* Type definition. */
4841 case C_AUTO: /* Automatic variable. */
4842 case C_FIELD: /* Bit field. */
4843 case C_ENTAG: /* Enumeration tag. */
4844 case C_MOE: /* Member of enumeration. */
4845 case C_MOU: /* Member of union. */
4846 case C_UNTAG: /* Union tag. */
4847 dst->symbol.flags = BSF_DEBUGGING;
4848 dst->symbol.value = (src->u.syment.n_value);
4851 case C_FILE: /* File name. */
4852 case C_STRTAG: /* Structure tag. */
4869 dst->symbol.flags = BSF_DEBUGGING;
4870 dst->symbol.value = (src->u.syment.n_value);
4874 case C_BINCL: /* Beginning of include file. */
4875 case C_EINCL: /* Ending of include file. */
4876 /* The value is actually a pointer into the line numbers
4877 of the file. We locate the line number entry, and
4878 set the section to the section which contains it, and
4879 the value to the index in that section. */
4883 dst->symbol.flags = BSF_DEBUGGING;
4884 for (sec = abfd->sections; sec != NULL; sec = sec->next)
4885 if (sec->line_filepos <= (file_ptr) src->u.syment.n_value
4886 && ((file_ptr) (sec->line_filepos
4887 + sec->lineno_count * bfd_coff_linesz (abfd))
4888 > (file_ptr) src->u.syment.n_value))
4891 dst->symbol.value = 0;
4894 dst->symbol.section = sec;
4895 dst->symbol.value = ((src->u.syment.n_value
4896 - sec->line_filepos)
4897 / bfd_coff_linesz (abfd));
4904 dst->symbol.flags = BSF_DEBUGGING;
4906 /* The value is actually a symbol index. Save a pointer
4907 to the symbol instead of the index. FIXME: This
4908 should use a union. */
4909 src->u.syment.n_value =
4910 (long) (intptr_t) (native_symbols + src->u.syment.n_value);
4911 dst->symbol.value = src->u.syment.n_value;
4916 case C_BLOCK: /* ".bb" or ".eb". */
4917 case C_FCN: /* ".bf" or ".ef" (or PE ".lf"). */
4918 case C_EFCN: /* Physical end of function. */
4919 #if defined COFF_WITH_PE
4920 /* PE sets the symbol to a value relative to the start
4922 dst->symbol.value = src->u.syment.n_value;
4923 if (strcmp (dst->symbol.name, ".bf") != 0)
4925 /* PE uses funny values for .ef and .lf; don't
4927 dst->symbol.flags = BSF_DEBUGGING;
4930 dst->symbol.flags = BSF_DEBUGGING | BSF_DEBUGGING_RELOC;
4932 /* Base the value as an index from the base of the
4934 dst->symbol.flags = BSF_LOCAL;
4935 dst->symbol.value = (src->u.syment.n_value
4936 - dst->symbol.section->vma);
4940 case C_STATLAB: /* Static load time label. */
4941 dst->symbol.value = src->u.syment.n_value;
4942 dst->symbol.flags = BSF_GLOBAL;
4946 /* PE DLLs sometimes have zeroed out symbols for some
4947 reason. Just ignore them without a warning. */
4948 if (src->u.syment.n_type == 0
4949 && src->u.syment.n_value == 0
4950 && src->u.syment.n_scnum == 0)
4953 /* XCOFF specific: deleted entry. */
4954 if (src->u.syment.n_value == C_NULL_VALUE)
4958 case C_EXTDEF: /* External definition. */
4959 case C_ULABEL: /* Undefined label. */
4960 case C_USTATIC: /* Undefined static. */
4961 #ifndef COFF_WITH_PE
4962 /* C_LINE in regular coff is 0x68. NT has taken over this storage
4963 class to represent a section symbol. */
4964 case C_LINE: /* line # reformatted as symbol table entry. */
4965 /* NT uses 0x67 for a weak symbol, not C_ALIAS. */
4966 case C_ALIAS: /* Duplicate tag. */
4968 /* New storage classes for TI COFF. */
4969 #if defined(TIC80COFF) || defined(TICOFF)
4970 case C_UEXT: /* Tentative external definition. */
4972 case C_EXTLAB: /* External load time label. */
4973 case C_HIDDEN: /* Ext symbol in dmert public lib. */
4975 (*_bfd_error_handler)
4976 (_("%B: Unrecognized storage class %d for %s symbol `%s'"),
4977 abfd, src->u.syment.n_sclass,
4978 dst->symbol.section->name, dst->symbol.name);
4979 dst->symbol.flags = BSF_DEBUGGING;
4980 dst->symbol.value = (src->u.syment.n_value);
4986 dst->symbol.udata.i = 0;
4988 this_index += (src->u.syment.n_numaux) + 1;
4990 number_of_symbols++;
4994 obj_symbols (abfd) = cached_area;
4995 obj_raw_syments (abfd) = native_symbols;
4997 bfd_get_symcount (abfd) = number_of_symbols;
4998 obj_convert (abfd) = table_ptr;
4999 /* Slurp the line tables for each section too. */
5006 coff_slurp_line_table (abfd, p);
5014 /* Classify a COFF symbol. A couple of targets have globally visible
5015 symbols which are not class C_EXT, and this handles those. It also
5016 recognizes some special PE cases. */
5018 static enum coff_symbol_classification
5019 coff_classify_symbol (bfd *abfd,
5020 struct internal_syment *syment)
5022 /* FIXME: This partially duplicates the switch in
5023 coff_slurp_symbol_table. */
5024 switch (syment->n_sclass)
5033 case C_THUMBEXTFUNC:
5041 if (syment->n_scnum == 0)
5043 if (syment->n_value == 0)
5044 return COFF_SYMBOL_UNDEFINED;
5046 return COFF_SYMBOL_COMMON;
5048 return COFF_SYMBOL_GLOBAL;
5055 if (syment->n_sclass == C_STAT)
5057 if (syment->n_scnum == 0)
5058 /* The Microsoft compiler sometimes generates these if a
5059 small static function is inlined every time it is used.
5060 The function is discarded, but the symbol table entry
5062 return COFF_SYMBOL_LOCAL;
5064 #ifdef STRICT_PE_FORMAT
5065 /* This is correct for Microsoft generated objects, but it
5066 breaks gas generated objects. */
5067 if (syment->n_value == 0)
5070 char buf[SYMNMLEN + 1];
5072 sec = coff_section_from_bfd_index (abfd, syment->n_scnum);
5074 && (strcmp (bfd_get_section_name (abfd, sec),
5075 _bfd_coff_internal_syment_name (abfd, syment, buf))
5077 return COFF_SYMBOL_PE_SECTION;
5081 return COFF_SYMBOL_LOCAL;
5084 if (syment->n_sclass == C_SECTION)
5086 /* In some cases in a DLL generated by the Microsoft linker, the
5087 n_value field will contain garbage. FIXME: This should
5088 probably be handled by the swapping function instead. */
5089 syment->n_value = 0;
5090 if (syment->n_scnum == 0)
5091 return COFF_SYMBOL_UNDEFINED;
5092 return COFF_SYMBOL_PE_SECTION;
5094 #endif /* COFF_WITH_PE */
5096 /* If it is not a global symbol, we presume it is a local symbol. */
5097 if (syment->n_scnum == 0)
5099 char buf[SYMNMLEN + 1];
5101 (*_bfd_error_handler)
5102 (_("warning: %B: local symbol `%s' has no section"),
5103 abfd, _bfd_coff_internal_syment_name (abfd, syment, buf));
5106 return COFF_SYMBOL_LOCAL;
5113 Coff relocations are easily transformed into the internal BFD form
5116 Reading a coff relocation table is done in the following stages:
5118 o Read the entire coff relocation table into memory.
5120 o Process each relocation in turn; first swap it from the
5121 external to the internal form.
5123 o Turn the symbol referenced in the relocation's symbol index
5124 into a pointer into the canonical symbol table.
5125 This table is the same as the one returned by a call to
5126 @code{bfd_canonicalize_symtab}. The back end will call that
5127 routine and save the result if a canonicalization hasn't been done.
5129 o The reloc index is turned into a pointer to a howto
5130 structure, in a back end specific way. For instance, the 386
5131 and 960 use the @code{r_type} to directly produce an index
5132 into a howto table vector; the 88k subtracts a number from the
5133 @code{r_type} field and creates an addend field.
5137 #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
5139 coff_symbol_type *coffsym = NULL; \
5141 if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
5142 coffsym = (obj_symbols (abfd) \
5143 + (cache_ptr->sym_ptr_ptr - symbols)); \
5145 coffsym = coff_symbol_from (abfd, ptr); \
5146 if (coffsym != NULL \
5147 && coffsym->native->u.syment.n_scnum == 0) \
5148 cache_ptr->addend = 0; \
5149 else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
5150 && ptr->section != NULL) \
5151 cache_ptr->addend = - (ptr->section->vma + ptr->value); \
5153 cache_ptr->addend = 0; \
5158 coff_slurp_reloc_table (bfd * abfd, sec_ptr asect, asymbol ** symbols)
5160 RELOC *native_relocs;
5161 arelent *reloc_cache;
5166 if (asect->relocation)
5168 if (asect->reloc_count == 0)
5170 if (asect->flags & SEC_CONSTRUCTOR)
5172 if (!coff_slurp_symbol_table (abfd))
5175 amt = (bfd_size_type) bfd_coff_relsz (abfd) * asect->reloc_count;
5176 native_relocs = (RELOC *) buy_and_read (abfd, asect->rel_filepos, amt);
5177 amt = (bfd_size_type) asect->reloc_count * sizeof (arelent);
5178 reloc_cache = (arelent *) bfd_alloc (abfd, amt);
5180 if (reloc_cache == NULL || native_relocs == NULL)
5183 for (idx = 0; idx < asect->reloc_count; idx++)
5185 struct internal_reloc dst;
5186 struct external_reloc *src;
5187 #ifndef RELOC_PROCESSING
5191 cache_ptr = reloc_cache + idx;
5192 src = native_relocs + idx;
5195 coff_swap_reloc_in (abfd, src, &dst);
5197 #ifdef RELOC_PROCESSING
5198 RELOC_PROCESSING (cache_ptr, &dst, symbols, abfd, asect);
5200 cache_ptr->address = dst.r_vaddr;
5202 if (dst.r_symndx != -1)
5204 if (dst.r_symndx < 0 || dst.r_symndx >= obj_conv_table_size (abfd))
5206 (*_bfd_error_handler)
5207 (_("%B: warning: illegal symbol index %ld in relocs"),
5208 abfd, (long) dst.r_symndx);
5209 cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
5214 cache_ptr->sym_ptr_ptr = (symbols
5215 + obj_convert (abfd)[dst.r_symndx]);
5216 ptr = *(cache_ptr->sym_ptr_ptr);
5221 cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
5225 /* The symbols definitions that we have read in have been
5226 relocated as if their sections started at 0. But the offsets
5227 refering to the symbols in the raw data have not been
5228 modified, so we have to have a negative addend to compensate.
5230 Note that symbols which used to be common must be left alone. */
5232 /* Calculate any reloc addend by looking at the symbol. */
5233 CALC_ADDEND (abfd, ptr, dst, cache_ptr);
5236 cache_ptr->address -= asect->vma;
5237 /* !! cache_ptr->section = NULL;*/
5239 /* Fill in the cache_ptr->howto field from dst.r_type. */
5240 RTYPE2HOWTO (cache_ptr, &dst);
5241 #endif /* RELOC_PROCESSING */
5243 if (cache_ptr->howto == NULL)
5245 (*_bfd_error_handler)
5246 (_("%B: illegal relocation type %d at address 0x%lx"),
5247 abfd, dst.r_type, (long) dst.r_vaddr);
5248 bfd_set_error (bfd_error_bad_value);
5253 asect->relocation = reloc_cache;
5257 #ifndef coff_rtype_to_howto
5260 /* Get the howto structure for a reloc. This is only used if the file
5261 including this one defines coff_relocate_section to be
5262 _bfd_coff_generic_relocate_section, so it is OK if it does not
5263 always work. It is the responsibility of the including file to
5264 make sure it is reasonable if it is needed. */
5266 static reloc_howto_type *
5267 coff_rtype_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
5268 asection *sec ATTRIBUTE_UNUSED,
5269 struct internal_reloc *rel,
5270 struct coff_link_hash_entry *h ATTRIBUTE_UNUSED,
5271 struct internal_syment *sym ATTRIBUTE_UNUSED,
5272 bfd_vma *addendp ATTRIBUTE_UNUSED)
5276 genrel.howto = NULL;
5277 RTYPE2HOWTO (&genrel, rel);
5278 return genrel.howto;
5281 #else /* ! defined (RTYPE2HOWTO) */
5283 #define coff_rtype_to_howto NULL
5285 #endif /* ! defined (RTYPE2HOWTO) */
5286 #endif /* ! defined (coff_rtype_to_howto) */
5288 /* This is stupid. This function should be a boolean predicate. */
5291 coff_canonicalize_reloc (bfd * abfd,
5296 arelent *tblptr = section->relocation;
5297 unsigned int count = 0;
5299 if (section->flags & SEC_CONSTRUCTOR)
5301 /* This section has relocs made up by us, they are not in the
5302 file, so take them out of their chain and place them into
5303 the data area provided. */
5304 arelent_chain *chain = section->constructor_chain;
5306 for (count = 0; count < section->reloc_count; count++)
5308 *relptr++ = &chain->relent;
5309 chain = chain->next;
5314 if (! coff_slurp_reloc_table (abfd, section, symbols))
5317 tblptr = section->relocation;
5319 for (; count++ < section->reloc_count;)
5320 *relptr++ = tblptr++;
5323 return section->reloc_count;
5326 #ifndef coff_reloc16_estimate
5327 #define coff_reloc16_estimate dummy_reloc16_estimate
5330 dummy_reloc16_estimate (bfd *abfd ATTRIBUTE_UNUSED,
5331 asection *input_section ATTRIBUTE_UNUSED,
5332 arelent *reloc ATTRIBUTE_UNUSED,
5333 unsigned int shrink ATTRIBUTE_UNUSED,
5334 struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
5342 #ifndef coff_reloc16_extra_cases
5344 #define coff_reloc16_extra_cases dummy_reloc16_extra_cases
5346 /* This works even if abort is not declared in any header file. */
5349 dummy_reloc16_extra_cases (bfd *abfd ATTRIBUTE_UNUSED,
5350 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
5351 struct bfd_link_order *link_order ATTRIBUTE_UNUSED,
5352 arelent *reloc ATTRIBUTE_UNUSED,
5353 bfd_byte *data ATTRIBUTE_UNUSED,
5354 unsigned int *src_ptr ATTRIBUTE_UNUSED,
5355 unsigned int *dst_ptr ATTRIBUTE_UNUSED)
5361 #ifndef coff_bfd_link_hash_table_free
5362 #define coff_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
5365 /* If coff_relocate_section is defined, we can use the optimized COFF
5366 backend linker. Otherwise we must continue to use the old linker. */
5368 #ifdef coff_relocate_section
5370 #ifndef coff_bfd_link_hash_table_create
5371 #define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create
5373 #ifndef coff_bfd_link_add_symbols
5374 #define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols
5376 #ifndef coff_bfd_final_link
5377 #define coff_bfd_final_link _bfd_coff_final_link
5380 #else /* ! defined (coff_relocate_section) */
5382 #define coff_relocate_section NULL
5383 #ifndef coff_bfd_link_hash_table_create
5384 #define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
5386 #ifndef coff_bfd_link_add_symbols
5387 #define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols
5389 #define coff_bfd_final_link _bfd_generic_final_link
5391 #endif /* ! defined (coff_relocate_section) */
5393 #define coff_bfd_link_just_syms _bfd_generic_link_just_syms
5394 #define coff_bfd_copy_link_hash_symbol_type \
5395 _bfd_generic_copy_link_hash_symbol_type
5396 #define coff_bfd_link_split_section _bfd_generic_link_split_section
5398 #ifndef coff_start_final_link
5399 #define coff_start_final_link NULL
5402 #ifndef coff_adjust_symndx
5403 #define coff_adjust_symndx NULL
5406 #ifndef coff_link_add_one_symbol
5407 #define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol
5410 #ifndef coff_link_output_has_begun
5413 coff_link_output_has_begun (bfd * abfd,
5414 struct coff_final_link_info * info ATTRIBUTE_UNUSED)
5416 return abfd->output_has_begun;
5420 #ifndef coff_final_link_postscript
5423 coff_final_link_postscript (bfd * abfd ATTRIBUTE_UNUSED,
5424 struct coff_final_link_info * pfinfo ATTRIBUTE_UNUSED)
5430 #ifndef coff_SWAP_aux_in
5431 #define coff_SWAP_aux_in coff_swap_aux_in
5433 #ifndef coff_SWAP_sym_in
5434 #define coff_SWAP_sym_in coff_swap_sym_in
5436 #ifndef coff_SWAP_lineno_in
5437 #define coff_SWAP_lineno_in coff_swap_lineno_in
5439 #ifndef coff_SWAP_aux_out
5440 #define coff_SWAP_aux_out coff_swap_aux_out
5442 #ifndef coff_SWAP_sym_out
5443 #define coff_SWAP_sym_out coff_swap_sym_out
5445 #ifndef coff_SWAP_lineno_out
5446 #define coff_SWAP_lineno_out coff_swap_lineno_out
5448 #ifndef coff_SWAP_reloc_out
5449 #define coff_SWAP_reloc_out coff_swap_reloc_out
5451 #ifndef coff_SWAP_filehdr_out
5452 #define coff_SWAP_filehdr_out coff_swap_filehdr_out
5454 #ifndef coff_SWAP_aouthdr_out
5455 #define coff_SWAP_aouthdr_out coff_swap_aouthdr_out
5457 #ifndef coff_SWAP_scnhdr_out
5458 #define coff_SWAP_scnhdr_out coff_swap_scnhdr_out
5460 #ifndef coff_SWAP_reloc_in
5461 #define coff_SWAP_reloc_in coff_swap_reloc_in
5463 #ifndef coff_SWAP_filehdr_in
5464 #define coff_SWAP_filehdr_in coff_swap_filehdr_in
5466 #ifndef coff_SWAP_aouthdr_in
5467 #define coff_SWAP_aouthdr_in coff_swap_aouthdr_in
5469 #ifndef coff_SWAP_scnhdr_in
5470 #define coff_SWAP_scnhdr_in coff_swap_scnhdr_in
5473 static bfd_coff_backend_data bfd_coff_std_swap_table ATTRIBUTE_UNUSED =
5475 coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in,
5476 coff_SWAP_aux_out, coff_SWAP_sym_out,
5477 coff_SWAP_lineno_out, coff_SWAP_reloc_out,
5478 coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out,
5479 coff_SWAP_scnhdr_out,
5480 FILHSZ, AOUTSZ, SCNHSZ, SYMESZ, AUXESZ, RELSZ, LINESZ, FILNMLEN,
5481 #ifdef COFF_LONG_FILENAMES
5486 COFF_DEFAULT_LONG_SECTION_NAMES,
5487 COFF_DEFAULT_SECTION_ALIGNMENT_POWER,
5488 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5493 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5498 coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in,
5499 coff_SWAP_reloc_in, coff_bad_format_hook, coff_set_arch_mach_hook,
5500 coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook,
5501 coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook,
5502 coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate,
5503 coff_classify_symbol, coff_compute_section_file_positions,
5504 coff_start_final_link, coff_relocate_section, coff_rtype_to_howto,
5505 coff_adjust_symndx, coff_link_add_one_symbol,
5506 coff_link_output_has_begun, coff_final_link_postscript,
5511 /* COFF0 differs in file/section header size and relocation entry size. */
5513 static bfd_coff_backend_data ticoff0_swap_table =
5515 coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in,
5516 coff_SWAP_aux_out, coff_SWAP_sym_out,
5517 coff_SWAP_lineno_out, coff_SWAP_reloc_out,
5518 coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out,
5519 coff_SWAP_scnhdr_out,
5520 FILHSZ_V0, AOUTSZ, SCNHSZ_V01, SYMESZ, AUXESZ, RELSZ_V0, LINESZ, FILNMLEN,
5521 #ifdef COFF_LONG_FILENAMES
5526 COFF_DEFAULT_LONG_SECTION_NAMES,
5527 COFF_DEFAULT_SECTION_ALIGNMENT_POWER,
5528 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5533 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5538 coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in,
5539 coff_SWAP_reloc_in, ticoff0_bad_format_hook, coff_set_arch_mach_hook,
5540 coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook,
5541 coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook,
5542 coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate,
5543 coff_classify_symbol, coff_compute_section_file_positions,
5544 coff_start_final_link, coff_relocate_section, coff_rtype_to_howto,
5545 coff_adjust_symndx, coff_link_add_one_symbol,
5546 coff_link_output_has_begun, coff_final_link_postscript,
5552 /* COFF1 differs in section header size. */
5554 static bfd_coff_backend_data ticoff1_swap_table =
5556 coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in,
5557 coff_SWAP_aux_out, coff_SWAP_sym_out,
5558 coff_SWAP_lineno_out, coff_SWAP_reloc_out,
5559 coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out,
5560 coff_SWAP_scnhdr_out,
5561 FILHSZ, AOUTSZ, SCNHSZ_V01, SYMESZ, AUXESZ, RELSZ, LINESZ, FILNMLEN,
5562 #ifdef COFF_LONG_FILENAMES
5567 COFF_DEFAULT_LONG_SECTION_NAMES,
5568 COFF_DEFAULT_SECTION_ALIGNMENT_POWER,
5569 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5574 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5579 coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in,
5580 coff_SWAP_reloc_in, ticoff1_bad_format_hook, coff_set_arch_mach_hook,
5581 coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook,
5582 coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook,
5583 coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate,
5584 coff_classify_symbol, coff_compute_section_file_positions,
5585 coff_start_final_link, coff_relocate_section, coff_rtype_to_howto,
5586 coff_adjust_symndx, coff_link_add_one_symbol,
5587 coff_link_output_has_begun, coff_final_link_postscript,
5588 bfd_pe_print_pdata /* huh */
5592 #ifndef coff_close_and_cleanup
5593 #define coff_close_and_cleanup _bfd_generic_close_and_cleanup
5596 #ifndef coff_bfd_free_cached_info
5597 #define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
5600 #ifndef coff_get_section_contents
5601 #define coff_get_section_contents _bfd_generic_get_section_contents
5604 #ifndef coff_bfd_copy_private_symbol_data
5605 #define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data
5608 #ifndef coff_bfd_copy_private_header_data
5609 #define coff_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data
5612 #ifndef coff_bfd_copy_private_section_data
5613 #define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data
5616 #ifndef coff_bfd_copy_private_bfd_data
5617 #define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
5620 #ifndef coff_bfd_merge_private_bfd_data
5621 #define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
5624 #ifndef coff_bfd_set_private_flags
5625 #define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
5628 #ifndef coff_bfd_print_private_bfd_data
5629 #define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
5632 #ifndef coff_bfd_is_local_label_name
5633 #define coff_bfd_is_local_label_name _bfd_coff_is_local_label_name
5636 #ifndef coff_bfd_is_target_special_symbol
5637 #define coff_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
5640 #ifndef coff_read_minisymbols
5641 #define coff_read_minisymbols _bfd_generic_read_minisymbols
5644 #ifndef coff_minisymbol_to_symbol
5645 #define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
5648 /* The reloc lookup routine must be supplied by each individual COFF
5650 #ifndef coff_bfd_reloc_type_lookup
5651 #define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
5653 #ifndef coff_bfd_reloc_name_lookup
5654 #define coff_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
5657 #ifndef coff_bfd_get_relocated_section_contents
5658 #define coff_bfd_get_relocated_section_contents \
5659 bfd_generic_get_relocated_section_contents
5662 #ifndef coff_bfd_relax_section
5663 #define coff_bfd_relax_section bfd_generic_relax_section
5666 #ifndef coff_bfd_gc_sections
5667 #define coff_bfd_gc_sections bfd_generic_gc_sections
5670 #ifndef coff_bfd_lookup_section_flags
5671 #define coff_bfd_lookup_section_flags bfd_generic_lookup_section_flags
5674 #ifndef coff_bfd_merge_sections
5675 #define coff_bfd_merge_sections bfd_generic_merge_sections
5678 #ifndef coff_bfd_is_group_section
5679 #define coff_bfd_is_group_section bfd_generic_is_group_section
5682 #ifndef coff_bfd_discard_group
5683 #define coff_bfd_discard_group bfd_generic_discard_group
5686 #ifndef coff_section_already_linked
5687 #define coff_section_already_linked \
5688 _bfd_coff_section_already_linked
5691 #ifndef coff_bfd_define_common_symbol
5692 #define coff_bfd_define_common_symbol bfd_generic_define_common_symbol
5695 #define CREATE_BIG_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5696 const bfd_target VAR = \
5699 bfd_target_coff_flavour, \
5700 BFD_ENDIAN_BIG, /* Data byte order is big. */ \
5701 BFD_ENDIAN_BIG, /* Header byte order is big. */ \
5702 /* object flags */ \
5703 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5704 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5705 /* section flags */ \
5706 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5707 UNDER, /* Leading symbol underscore. */ \
5708 '/', /* AR_pad_char. */ \
5709 15, /* AR_max_namelen. */ \
5710 0, /* match priority. */ \
5712 /* Data conversion functions. */ \
5713 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5714 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5715 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5717 /* Header conversion functions. */ \
5718 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5719 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5720 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5722 /* bfd_check_format. */ \
5723 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5724 _bfd_dummy_target }, \
5725 /* bfd_set_format. */ \
5726 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
5727 /* bfd_write_contents. */ \
5728 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5731 BFD_JUMP_TABLE_GENERIC (coff), \
5732 BFD_JUMP_TABLE_COPY (coff), \
5733 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5734 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5735 BFD_JUMP_TABLE_SYMBOLS (coff), \
5736 BFD_JUMP_TABLE_RELOCS (coff), \
5737 BFD_JUMP_TABLE_WRITE (coff), \
5738 BFD_JUMP_TABLE_LINK (coff), \
5739 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5746 #define CREATE_BIGHDR_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5747 const bfd_target VAR = \
5750 bfd_target_coff_flavour, \
5751 BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \
5752 BFD_ENDIAN_BIG, /* Header byte order is big. */ \
5753 /* object flags */ \
5754 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5755 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5756 /* section flags */ \
5757 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5758 UNDER, /* Leading symbol underscore. */ \
5759 '/', /* AR_pad_char. */ \
5760 15, /* AR_max_namelen. */ \
5761 0, /* match priority. */ \
5763 /* Data conversion functions. */ \
5764 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5765 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5766 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5768 /* Header conversion functions. */ \
5769 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5770 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5771 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5773 /* bfd_check_format. */ \
5774 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5775 _bfd_dummy_target }, \
5776 /* bfd_set_format. */ \
5777 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
5778 /* bfd_write_contents. */ \
5779 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5782 BFD_JUMP_TABLE_GENERIC (coff), \
5783 BFD_JUMP_TABLE_COPY (coff), \
5784 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5785 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5786 BFD_JUMP_TABLE_SYMBOLS (coff), \
5787 BFD_JUMP_TABLE_RELOCS (coff), \
5788 BFD_JUMP_TABLE_WRITE (coff), \
5789 BFD_JUMP_TABLE_LINK (coff), \
5790 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5797 #define CREATE_LITTLE_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5798 const bfd_target VAR = \
5801 bfd_target_coff_flavour, \
5802 BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \
5803 BFD_ENDIAN_LITTLE, /* Header byte order is little. */ \
5804 /* object flags */ \
5805 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5806 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5807 /* section flags */ \
5808 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5809 UNDER, /* Leading symbol underscore. */ \
5810 '/', /* AR_pad_char. */ \
5811 15, /* AR_max_namelen. */ \
5812 0, /* match priority. */ \
5814 /* Data conversion functions. */ \
5815 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
5816 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
5817 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
5818 /* Header conversion functions. */ \
5819 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
5820 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
5821 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
5822 /* bfd_check_format. */ \
5823 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5824 _bfd_dummy_target }, \
5825 /* bfd_set_format. */ \
5826 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
5827 /* bfd_write_contents. */ \
5828 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5831 BFD_JUMP_TABLE_GENERIC (coff), \
5832 BFD_JUMP_TABLE_COPY (coff), \
5833 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5834 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5835 BFD_JUMP_TABLE_SYMBOLS (coff), \
5836 BFD_JUMP_TABLE_RELOCS (coff), \
5837 BFD_JUMP_TABLE_WRITE (coff), \
5838 BFD_JUMP_TABLE_LINK (coff), \
5839 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \