1 /* Support for the generic parts of most COFF variants, for BFD.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
4 Free Software Foundation, Inc.
5 Written by Cygnus Support.
7 This file is part of BFD, the Binary File Descriptor library.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
22 MA 02110-1301, USA. */
24 /* Most of this hacked by Steve Chamberlain,
30 BFD supports a number of different flavours of coff format.
31 The major differences between formats are the sizes and
32 alignments of fields in structures on disk, and the occasional
35 Coff in all its varieties is implemented with a few common
36 files and a number of implementation specific files. For
37 example, The 88k bcs coff format is implemented in the file
38 @file{coff-m88k.c}. This file @code{#include}s
39 @file{coff/m88k.h} which defines the external structure of the
40 coff format for the 88k, and @file{coff/internal.h} which
41 defines the internal structure. @file{coff-m88k.c} also
42 defines the relocations used by the 88k format
45 The Intel i960 processor version of coff is implemented in
46 @file{coff-i960.c}. This file has the same structure as
47 @file{coff-m88k.c}, except that it includes @file{coff/i960.h}
48 rather than @file{coff-m88k.h}.
51 Porting to a new version of coff
53 The recommended method is to select from the existing
54 implementations the version of coff which is most like the one
55 you want to use. For example, we'll say that i386 coff is
56 the one you select, and that your coff flavour is called foo.
57 Copy @file{i386coff.c} to @file{foocoff.c}, copy
58 @file{../include/coff/i386.h} to @file{../include/coff/foo.h},
59 and add the lines to @file{targets.c} and @file{Makefile.in}
60 so that your new back end is used. Alter the shapes of the
61 structures in @file{../include/coff/foo.h} so that they match
62 what you need. You will probably also have to add
63 @code{#ifdef}s to the code in @file{coff/internal.h} and
64 @file{coffcode.h} if your version of coff is too wild.
66 You can verify that your new BFD backend works quite simply by
67 building @file{objdump} from the @file{binutils} directory,
68 and making sure that its version of what's going on and your
69 host system's idea (assuming it has the pretty standard coff
70 dump utility, usually called @code{att-dump} or just
71 @code{dump}) are the same. Then clean up your code, and send
72 what you've done to Cygnus. Then your stuff will be in the
73 next release, and you won't have to keep integrating it.
76 How the coff backend works
81 The Coff backend is split into generic routines that are
82 applicable to any Coff target and routines that are specific
83 to a particular target. The target-specific routines are
84 further split into ones which are basically the same for all
85 Coff targets except that they use the external symbol format
86 or use different values for certain constants.
88 The generic routines are in @file{coffgen.c}. These routines
89 work for any Coff target. They use some hooks into the target
90 specific code; the hooks are in a @code{bfd_coff_backend_data}
91 structure, one of which exists for each target.
93 The essentially similar target-specific routines are in
94 @file{coffcode.h}. This header file includes executable C code.
95 The various Coff targets first include the appropriate Coff
96 header file, make any special defines that are needed, and
97 then include @file{coffcode.h}.
99 Some of the Coff targets then also have additional routines in
100 the target source file itself.
102 For example, @file{coff-i960.c} includes
103 @file{coff/internal.h} and @file{coff/i960.h}. It then
104 defines a few constants, such as @code{I960}, and includes
105 @file{coffcode.h}. Since the i960 has complex relocation
106 types, @file{coff-i960.c} also includes some code to
107 manipulate the i960 relocs. This code is not in
108 @file{coffcode.h} because it would not be used by any other
112 Coff long section names
114 In the standard Coff object format, section names are limited to
115 the eight bytes available in the @code{s_name} field of the
116 @code{SCNHDR} section header structure. The format requires the
117 field to be NUL-padded, but not necessarily NUL-terminated, so
118 the longest section names permitted are a full eight characters.
120 The Microsoft PE variants of the Coff object file format add
121 an extension to support the use of long section names. This
122 extension is defined in section 4 of the Microsoft PE/COFF
123 specification (rev 8.1). If a section name is too long to fit
124 into the section header's @code{s_name} field, it is instead
125 placed into the string table, and the @code{s_name} field is
126 filled with a slash ("/") followed by the ASCII decimal
127 representation of the offset of the full name relative to the
130 Note that this implies that the extension can only be used in object
131 files, as executables do not contain a string table. The standard
132 specifies that long section names from objects emitted into executable
133 images are to be truncated.
135 However, as a GNU extension, BFD can generate executable images
136 that contain a string table and long section names. This
137 would appear to be technically valid, as the standard only says
138 that Coff debugging information is deprecated, not forbidden,
139 and in practice it works, although some tools that parse PE files
140 expecting the MS standard format may become confused; @file{PEview} is
143 The functionality is supported in BFD by code implemented under
144 the control of the macro @code{COFF_LONG_SECTION_NAMES}. If not
145 defined, the format does not support long section names in any way.
146 If defined, it is used to initialise a flag,
147 @code{_bfd_coff_long_section_names}, and a hook function pointer,
148 @code{_bfd_coff_set_long_section_names}, in the Coff backend data
149 structure. The flag controls the generation of long section names
150 in output BFDs at runtime; if it is false, as it will be by default
151 when generating an executable image, long section names are truncated;
152 if true, the long section names extension is employed. The hook
153 points to a function that allows the value of the flag to be altered
154 at runtime, on formats that support long section names at all; on
155 other formats it points to a stub that returns an error indication.
157 With input BFDs, the flag is set according to whether any long section
158 names are detected while reading the section headers. For a completely
159 new BFD, the flag is set to the default for the target format. This
160 information can be used by a client of the BFD library when deciding
161 what output format to generate, and means that a BFD that is opened
162 for read and subsequently converted to a writeable BFD and modified
163 in-place will retain whatever format it had on input.
165 If @code{COFF_LONG_SECTION_NAMES} is simply defined (blank), or is
166 defined to the value "1", then long section names are enabled by
167 default; if it is defined to the value zero, they are disabled by
168 default (but still accepted in input BFDs). The header @file{coffcode.h}
169 defines a macro, @code{COFF_DEFAULT_LONG_SECTION_NAMES}, which is
170 used in the backends to initialise the backend data structure fields
171 appropriately; see the comments for further detail.
176 Each flavour of coff supported in BFD has its own header file
177 describing the external layout of the structures. There is also
178 an internal description of the coff layout, in
179 @file{coff/internal.h}. A major function of the
180 coff backend is swapping the bytes and twiddling the bits to
181 translate the external form of the structures into the normal
182 internal form. This is all performed in the
183 @code{bfd_swap}_@i{thing}_@i{direction} routines. Some
184 elements are different sizes between different versions of
185 coff; it is the duty of the coff version specific include file
186 to override the definitions of various packing routines in
187 @file{coffcode.h}. E.g., the size of line number entry in coff is
188 sometimes 16 bits, and sometimes 32 bits. @code{#define}ing
189 @code{PUT_LNSZ_LNNO} and @code{GET_LNSZ_LNNO} will select the
190 correct one. No doubt, some day someone will find a version of
191 coff which has a varying field size not catered to at the
192 moment. To port BFD, that person will have to add more @code{#defines}.
193 Three of the bit twiddling routines are exported to
194 @code{gdb}; @code{coff_swap_aux_in}, @code{coff_swap_sym_in}
195 and @code{coff_swap_lineno_in}. @code{GDB} reads the symbol
196 table on its own, but uses BFD to fix things up. More of the
197 bit twiddlers are exported for @code{gas};
198 @code{coff_swap_aux_out}, @code{coff_swap_sym_out},
199 @code{coff_swap_lineno_out}, @code{coff_swap_reloc_out},
200 @code{coff_swap_filehdr_out}, @code{coff_swap_aouthdr_out},
201 @code{coff_swap_scnhdr_out}. @code{Gas} currently keeps track
202 of all the symbol table and reloc drudgery itself, thereby
203 saving the internal BFD overhead, but uses BFD to swap things
204 on the way out, making cross ports much safer. Doing so also
205 allows BFD (and thus the linker) to use the same header files
206 as @code{gas}, which makes one avenue to disaster disappear.
211 The simple canonical form for symbols used by BFD is not rich
212 enough to keep all the information available in a coff symbol
213 table. The back end gets around this problem by keeping the original
214 symbol table around, "behind the scenes".
216 When a symbol table is requested (through a call to
217 @code{bfd_canonicalize_symtab}), a request gets through to
218 @code{coff_get_normalized_symtab}. This reads the symbol table from
219 the coff file and swaps all the structures inside into the
220 internal form. It also fixes up all the pointers in the table
221 (represented in the file by offsets from the first symbol in
222 the table) into physical pointers to elements in the new
223 internal table. This involves some work since the meanings of
224 fields change depending upon context: a field that is a
225 pointer to another structure in the symbol table at one moment
226 may be the size in bytes of a structure at the next. Another
227 pass is made over the table. All symbols which mark file names
228 (<<C_FILE>> symbols) are modified so that the internal
229 string points to the value in the auxent (the real filename)
230 rather than the normal text associated with the symbol
233 At this time the symbol names are moved around. Coff stores
234 all symbols less than nine characters long physically
235 within the symbol table; longer strings are kept at the end of
236 the file in the string table. This pass moves all strings
237 into memory and replaces them with pointers to the strings.
239 The symbol table is massaged once again, this time to create
240 the canonical table used by the BFD application. Each symbol
241 is inspected in turn, and a decision made (using the
242 @code{sclass} field) about the various flags to set in the
243 @code{asymbol}. @xref{Symbols}. The generated canonical table
244 shares strings with the hidden internal symbol table.
246 Any linenumbers are read from the coff file too, and attached
247 to the symbols which own the functions the linenumbers belong to.
252 Writing a symbol to a coff file which didn't come from a coff
253 file will lose any debugging information. The @code{asymbol}
254 structure remembers the BFD from which the symbol was taken, and on
255 output the back end makes sure that the same destination target as
256 source target is present.
258 When the symbols have come from a coff file then all the
259 debugging information is preserved.
261 Symbol tables are provided for writing to the back end in a
262 vector of pointers to pointers. This allows applications like
263 the linker to accumulate and output large symbol tables
264 without having to do too much byte copying.
266 This function runs through the provided symbol table and
267 patches each symbol marked as a file place holder
268 (@code{C_FILE}) to point to the next file place holder in the
269 list. It also marks each @code{offset} field in the list with
270 the offset from the first symbol of the current symbol.
272 Another function of this procedure is to turn the canonical
273 value form of BFD into the form used by coff. Internally, BFD
274 expects symbol values to be offsets from a section base; so a
275 symbol physically at 0x120, but in a section starting at
276 0x100, would have the value 0x20. Coff expects symbols to
277 contain their final value, so symbols have their values
278 changed at this point to reflect their sum with their owning
279 section. This transformation uses the
280 <<output_section>> field of the @code{asymbol}'s
281 @code{asection} @xref{Sections}.
283 o <<coff_mangle_symbols>>
285 This routine runs though the provided symbol table and uses
286 the offsets generated by the previous pass and the pointers
287 generated when the symbol table was read in to create the
288 structured hierarchy required by coff. It changes each pointer
289 to a symbol into the index into the symbol table of the asymbol.
291 o <<coff_write_symbols>>
293 This routine runs through the symbol table and patches up the
294 symbols from their internal form into the coff way, calls the
295 bit twiddlers, and writes out the table to the file.
304 The hidden information for an <<asymbol>> is described in a
305 <<combined_entry_type>>:
309 .typedef struct coff_ptr_struct
311 . {* Remembers the offset from the first symbol in the file for
312 . this symbol. Generated by coff_renumber_symbols. *}
313 . unsigned int offset;
315 . {* Should the value of this symbol be renumbered. Used for
316 . XCOFF C_BSTAT symbols. Set by coff_slurp_symbol_table. *}
317 . unsigned int fix_value : 1;
319 . {* Should the tag field of this symbol be renumbered.
320 . Created by coff_pointerize_aux. *}
321 . unsigned int fix_tag : 1;
323 . {* Should the endidx field of this symbol be renumbered.
324 . Created by coff_pointerize_aux. *}
325 . unsigned int fix_end : 1;
327 . {* Should the x_csect.x_scnlen field be renumbered.
328 . Created by coff_pointerize_aux. *}
329 . unsigned int fix_scnlen : 1;
331 . {* Fix up an XCOFF C_BINCL/C_EINCL symbol. The value is the
332 . index into the line number entries. Set by coff_slurp_symbol_table. *}
333 . unsigned int fix_line : 1;
335 . {* The container for the symbol structure as read and translated
339 . union internal_auxent auxent;
340 . struct internal_syment syment;
342 .} combined_entry_type;
345 .{* Each canonical asymbol really looks like this: *}
347 .typedef struct coff_symbol_struct
349 . {* The actual symbol which the rest of BFD works with *}
352 . {* A pointer to the hidden information for this symbol *}
353 . combined_entry_type *native;
355 . {* A pointer to the linenumber information for this symbol *}
356 . struct lineno_cache_entry *lineno;
358 . {* Have the line numbers been relocated yet ? *}
359 . bfd_boolean done_lineno;
364 #include "libiberty.h"
369 #include "coffswap.h"
372 #define STRING_SIZE_SIZE 4
374 #define DOT_DEBUG ".debug"
375 #define DOT_ZDEBUG ".zdebug"
376 #define GNU_LINKONCE_WI ".gnu.linkonce.wi."
377 #define GNU_LINKONCE_WT ".gnu.linkonce.wt."
378 #define DOT_RELOC ".reloc"
380 #if defined (COFF_LONG_SECTION_NAMES)
381 /* Needed to expand the inputs to BLANKOR1TOODD. */
382 #define COFFLONGSECTIONCATHELPER(x,y) x ## y
383 /* If the input macro Y is blank or '1', return an odd number; if it is
384 '0', return an even number. Result undefined in all other cases. */
385 #define BLANKOR1TOODD(y) COFFLONGSECTIONCATHELPER(1,y)
386 /* Defined to numerical 0 or 1 according to whether generation of long
387 section names is disabled or enabled by default. */
388 #define COFF_ENABLE_LONG_SECTION_NAMES (BLANKOR1TOODD(COFF_LONG_SECTION_NAMES) & 1)
389 /* Where long section names are supported, we allow them to be enabled
390 and disabled at runtime, so select an appropriate hook function for
391 _bfd_coff_set_long_section_names. */
392 #define COFF_LONG_SECTION_NAMES_SETTER bfd_coff_set_long_section_names_allowed
393 #else /* !defined (COFF_LONG_SECTION_NAMES) */
394 /* If long section names are not supported, this stub disallows any
395 attempt to enable them at run-time. */
396 #define COFF_LONG_SECTION_NAMES_SETTER bfd_coff_set_long_section_names_disallowed
397 #endif /* defined (COFF_LONG_SECTION_NAMES) */
399 /* Define a macro that can be used to initialise both the fields relating
400 to long section names in the backend data struct simultaneously. */
401 #if COFF_ENABLE_LONG_SECTION_NAMES
402 #define COFF_DEFAULT_LONG_SECTION_NAMES (TRUE), COFF_LONG_SECTION_NAMES_SETTER
403 #else /* !COFF_ENABLE_LONG_SECTION_NAMES */
404 #define COFF_DEFAULT_LONG_SECTION_NAMES (FALSE), COFF_LONG_SECTION_NAMES_SETTER
405 #endif /* COFF_ENABLE_LONG_SECTION_NAMES */
407 #if defined (COFF_LONG_SECTION_NAMES)
408 static bfd_boolean bfd_coff_set_long_section_names_allowed
410 #else /* !defined (COFF_LONG_SECTION_NAMES) */
411 static bfd_boolean bfd_coff_set_long_section_names_disallowed
413 #endif /* defined (COFF_LONG_SECTION_NAMES) */
414 static long sec_to_styp_flags
415 (const char *, flagword);
416 static bfd_boolean styp_to_sec_flags
417 (bfd *, void *, const char *, asection *, flagword *);
418 static bfd_boolean coff_bad_format_hook
420 static void coff_set_custom_section_alignment
421 (bfd *, asection *, const struct coff_section_alignment_entry *,
423 static bfd_boolean coff_new_section_hook
425 static bfd_boolean coff_set_arch_mach_hook
427 static bfd_boolean coff_write_relocs
429 static bfd_boolean coff_set_flags
430 (bfd *, unsigned int *, unsigned short *);
431 static bfd_boolean coff_set_arch_mach
432 (bfd *, enum bfd_architecture, unsigned long) ATTRIBUTE_UNUSED;
433 static bfd_boolean coff_compute_section_file_positions
435 static bfd_boolean coff_write_object_contents
436 (bfd *) ATTRIBUTE_UNUSED;
437 static bfd_boolean coff_set_section_contents
438 (bfd *, asection *, const void *, file_ptr, bfd_size_type);
439 static void * buy_and_read
440 (bfd *, file_ptr, bfd_size_type);
441 static bfd_boolean coff_slurp_line_table
443 static bfd_boolean coff_slurp_symbol_table
445 static enum coff_symbol_classification coff_classify_symbol
446 (bfd *, struct internal_syment *);
447 static bfd_boolean coff_slurp_reloc_table
448 (bfd *, asection *, asymbol **);
449 static long coff_canonicalize_reloc
450 (bfd *, asection *, arelent **, asymbol **);
451 #ifndef coff_mkobject_hook
452 static void * coff_mkobject_hook
453 (bfd *, void *, void *);
456 static flagword handle_COMDAT
457 (bfd *, flagword, void *, const char *, asection *);
459 #ifdef COFF_IMAGE_WITH_PE
460 static bfd_boolean coff_read_word
461 (bfd *, unsigned int *);
462 static unsigned int coff_compute_checksum
464 static bfd_boolean coff_apply_checksum
468 static bfd_boolean ticoff0_bad_format_hook
470 static bfd_boolean ticoff1_bad_format_hook
474 /* void warning(); */
476 #if defined (COFF_LONG_SECTION_NAMES)
478 bfd_coff_set_long_section_names_allowed (bfd *abfd, int enable)
480 coff_backend_info (abfd)->_bfd_coff_long_section_names = enable;
483 #else /* !defined (COFF_LONG_SECTION_NAMES) */
485 bfd_coff_set_long_section_names_disallowed (bfd *abfd, int enable)
491 #endif /* defined (COFF_LONG_SECTION_NAMES) */
493 /* Return a word with STYP_* (scnhdr.s_flags) flags set to represent
494 the incoming SEC_* flags. The inverse of this function is
495 styp_to_sec_flags(). NOTE: If you add to/change this routine, you
496 should probably mirror the changes in styp_to_sec_flags(). */
500 /* Macros for setting debugging flags. */
503 #define STYP_XCOFF_DEBUG STYP_DEBUG
505 #define STYP_XCOFF_DEBUG STYP_INFO
508 #ifdef COFF_ALIGN_IN_S_FLAGS
509 #define STYP_DEBUG_INFO STYP_DSECT
511 #define STYP_DEBUG_INFO STYP_INFO
515 sec_to_styp_flags (const char *sec_name, flagword sec_flags)
519 if (!strcmp (sec_name, _TEXT))
521 styp_flags = STYP_TEXT;
523 else if (!strcmp (sec_name, _DATA))
525 styp_flags = STYP_DATA;
527 else if (!strcmp (sec_name, _BSS))
529 styp_flags = STYP_BSS;
532 else if (!strcmp (sec_name, _COMMENT))
534 styp_flags = STYP_INFO;
535 #endif /* _COMMENT */
538 else if (!strcmp (sec_name, _LIB))
540 styp_flags = STYP_LIB;
544 else if (!strcmp (sec_name, _LIT))
546 styp_flags = STYP_LIT;
549 else if (CONST_STRNEQ (sec_name, DOT_DEBUG)
550 || CONST_STRNEQ (sec_name, DOT_ZDEBUG))
552 /* Handle the XCOFF debug section and DWARF2 debug sections. */
554 styp_flags = STYP_XCOFF_DEBUG;
556 styp_flags = STYP_DEBUG_INFO;
558 else if (CONST_STRNEQ (sec_name, ".stab"))
560 styp_flags = STYP_DEBUG_INFO;
562 #ifdef COFF_LONG_SECTION_NAMES
563 else if (CONST_STRNEQ (sec_name, GNU_LINKONCE_WI)
564 || CONST_STRNEQ (sec_name, GNU_LINKONCE_WT))
566 styp_flags = STYP_DEBUG_INFO;
570 else if (!strcmp (sec_name, _PAD))
572 styp_flags = STYP_PAD;
574 else if (!strcmp (sec_name, _LOADER))
576 styp_flags = STYP_LOADER;
578 else if (!strcmp (sec_name, _EXCEPT))
580 styp_flags = STYP_EXCEPT;
582 else if (!strcmp (sec_name, _TYPCHK))
584 styp_flags = STYP_TYPCHK;
586 else if (sec_flags & SEC_DEBUGGING)
590 for (i = 0; i < XCOFF_DWSECT_NBR_NAMES; i++)
591 if (!strcmp (sec_name, xcoff_dwsect_names[i].name))
593 styp_flags = STYP_DWARF | xcoff_dwsect_names[i].flag;
598 /* Try and figure out what it should be */
599 else if (sec_flags & SEC_CODE)
601 styp_flags = STYP_TEXT;
603 else if (sec_flags & SEC_DATA)
605 styp_flags = STYP_DATA;
607 else if (sec_flags & SEC_READONLY)
609 #ifdef STYP_LIT /* 29k readonly text/data section */
610 styp_flags = STYP_LIT;
612 styp_flags = STYP_TEXT;
613 #endif /* STYP_LIT */
615 else if (sec_flags & SEC_LOAD)
617 styp_flags = STYP_TEXT;
619 else if (sec_flags & SEC_ALLOC)
621 styp_flags = STYP_BSS;
625 if (sec_flags & SEC_TIC54X_CLINK)
626 styp_flags |= STYP_CLINK;
630 if (sec_flags & SEC_TIC54X_BLOCK)
631 styp_flags |= STYP_BLOCK;
635 if ((sec_flags & (SEC_NEVER_LOAD | SEC_COFF_SHARED_LIBRARY)) != 0)
636 styp_flags |= STYP_NOLOAD;
642 #else /* COFF_WITH_PE */
644 /* The PE version; see above for the general comments. The non-PE
645 case seems to be more guessing, and breaks PE format; specifically,
646 .rdata is readonly, but it sure ain't text. Really, all this
647 should be set up properly in gas (or whatever assembler is in use),
648 and honor whatever objcopy/strip, etc. sent us as input. */
651 sec_to_styp_flags (const char *sec_name, flagword sec_flags)
654 bfd_boolean is_dbg = FALSE;
656 if (CONST_STRNEQ (sec_name, DOT_DEBUG)
657 || CONST_STRNEQ (sec_name, DOT_ZDEBUG)
658 #ifdef COFF_LONG_SECTION_NAMES
659 || CONST_STRNEQ (sec_name, GNU_LINKONCE_WI)
660 || CONST_STRNEQ (sec_name, GNU_LINKONCE_WT)
662 || CONST_STRNEQ (sec_name, ".stab"))
665 /* caution: there are at least three groups of symbols that have
666 very similar bits and meanings: IMAGE_SCN*, SEC_*, and STYP_*.
667 SEC_* are the BFD internal flags, used for generic BFD
668 information. STYP_* are the COFF section flags which appear in
669 COFF files. IMAGE_SCN_* are the PE section flags which appear in
670 PE files. The STYP_* flags and the IMAGE_SCN_* flags overlap,
671 but there are more IMAGE_SCN_* flags. */
673 /* FIXME: There is no gas syntax to specify the debug section flag. */
676 sec_flags &= (SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD
677 | SEC_LINK_DUPLICATES_SAME_CONTENTS
678 | SEC_LINK_DUPLICATES_SAME_SIZE);
679 sec_flags |= SEC_DEBUGGING | SEC_READONLY;
685 if ((sec_flags & SEC_CODE) != 0)
686 styp_flags |= IMAGE_SCN_CNT_CODE;
687 if ((sec_flags & (SEC_DATA | SEC_DEBUGGING)) != 0)
688 styp_flags |= IMAGE_SCN_CNT_INITIALIZED_DATA;
689 if ((sec_flags & SEC_ALLOC) != 0 && (sec_flags & SEC_LOAD) == 0)
690 styp_flags |= IMAGE_SCN_CNT_UNINITIALIZED_DATA; /* ==STYP_BSS */
692 /* skip constRUCTOR */
694 if ((sec_flags & SEC_IS_COMMON) != 0)
695 styp_flags |= IMAGE_SCN_LNK_COMDAT;
696 if ((sec_flags & SEC_DEBUGGING) != 0)
697 styp_flags |= IMAGE_SCN_MEM_DISCARDABLE;
698 if ((sec_flags & SEC_EXCLUDE) != 0 && !is_dbg)
699 styp_flags |= IMAGE_SCN_LNK_REMOVE;
700 if ((sec_flags & SEC_NEVER_LOAD) != 0 && !is_dbg)
701 styp_flags |= IMAGE_SCN_LNK_REMOVE;
704 if (sec_flags & SEC_LINK_ONCE)
705 styp_flags |= IMAGE_SCN_LNK_COMDAT;
707 & (SEC_LINK_DUPLICATES_DISCARD | SEC_LINK_DUPLICATES_SAME_CONTENTS
708 | SEC_LINK_DUPLICATES_SAME_SIZE)) != 0)
709 styp_flags |= IMAGE_SCN_LNK_COMDAT;
711 /* skip LINKER_CREATED */
713 if ((sec_flags & SEC_COFF_NOREAD) == 0)
714 styp_flags |= IMAGE_SCN_MEM_READ; /* Invert NOREAD for read. */
715 if ((sec_flags & SEC_READONLY) == 0)
716 styp_flags |= IMAGE_SCN_MEM_WRITE; /* Invert READONLY for write. */
717 if (sec_flags & SEC_CODE)
718 styp_flags |= IMAGE_SCN_MEM_EXECUTE; /* CODE->EXECUTE. */
719 if (sec_flags & SEC_COFF_SHARED)
720 styp_flags |= IMAGE_SCN_MEM_SHARED; /* Shared remains meaningful. */
725 #endif /* COFF_WITH_PE */
727 /* Return a word with SEC_* flags set to represent the incoming STYP_*
728 flags (from scnhdr.s_flags). The inverse of this function is
729 sec_to_styp_flags(). NOTE: If you add to/change this routine, you
730 should probably mirror the changes in sec_to_styp_flags(). */
735 styp_to_sec_flags (bfd *abfd ATTRIBUTE_UNUSED,
738 asection *section ATTRIBUTE_UNUSED,
741 struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
742 long styp_flags = internal_s->s_flags;
743 flagword sec_flags = 0;
746 if (styp_flags & STYP_BLOCK)
747 sec_flags |= SEC_TIC54X_BLOCK;
751 if (styp_flags & STYP_CLINK)
752 sec_flags |= SEC_TIC54X_CLINK;
756 if (styp_flags & STYP_NOLOAD)
757 sec_flags |= SEC_NEVER_LOAD;
758 #endif /* STYP_NOLOAD */
760 /* For 386 COFF, at least, an unloadable text or data section is
761 actually a shared library section. */
762 if (styp_flags & STYP_TEXT)
764 if (sec_flags & SEC_NEVER_LOAD)
765 sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY;
767 sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC;
769 else if (styp_flags & STYP_DATA)
771 if (sec_flags & SEC_NEVER_LOAD)
772 sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY;
774 sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC;
776 else if (styp_flags & STYP_BSS)
778 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
779 if (sec_flags & SEC_NEVER_LOAD)
780 sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY;
783 sec_flags |= SEC_ALLOC;
785 else if (styp_flags & STYP_INFO)
787 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
788 defined. coff_compute_section_file_positions uses
789 COFF_PAGE_SIZE to ensure that the low order bits of the
790 section VMA and the file offset match. If we don't know
791 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
792 and demand page loading of the file will fail. */
793 #if defined (COFF_PAGE_SIZE) && !defined (COFF_ALIGN_IN_S_FLAGS)
794 sec_flags |= SEC_DEBUGGING;
797 else if (styp_flags & STYP_PAD)
800 else if (styp_flags & STYP_DWARF)
801 sec_flags |= SEC_DEBUGGING;
803 else if (strcmp (name, _TEXT) == 0)
805 if (sec_flags & SEC_NEVER_LOAD)
806 sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY;
808 sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC;
810 else if (strcmp (name, _DATA) == 0)
812 if (sec_flags & SEC_NEVER_LOAD)
813 sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY;
815 sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC;
817 else if (strcmp (name, _BSS) == 0)
819 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
820 if (sec_flags & SEC_NEVER_LOAD)
821 sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY;
824 sec_flags |= SEC_ALLOC;
826 else if (CONST_STRNEQ (name, DOT_DEBUG)
827 || CONST_STRNEQ (name, DOT_ZDEBUG)
829 || strcmp (name, _COMMENT) == 0
831 #ifdef COFF_LONG_SECTION_NAMES
832 || CONST_STRNEQ (name, GNU_LINKONCE_WI)
833 || CONST_STRNEQ (name, GNU_LINKONCE_WT)
835 || CONST_STRNEQ (name, ".stab"))
837 #ifdef COFF_PAGE_SIZE
838 sec_flags |= SEC_DEBUGGING;
842 else if (strcmp (name, _LIB) == 0)
846 else if (strcmp (name, _LIT) == 0)
847 sec_flags = SEC_LOAD | SEC_ALLOC | SEC_READONLY;
850 sec_flags |= SEC_ALLOC | SEC_LOAD;
852 #ifdef STYP_LIT /* A29k readonly text/data section type. */
853 if ((styp_flags & STYP_LIT) == STYP_LIT)
854 sec_flags = (SEC_LOAD | SEC_ALLOC | SEC_READONLY);
855 #endif /* STYP_LIT */
857 #ifdef STYP_OTHER_LOAD /* Other loaded sections. */
858 if (styp_flags & STYP_OTHER_LOAD)
859 sec_flags = (SEC_LOAD | SEC_ALLOC);
860 #endif /* STYP_SDATA */
862 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
863 /* As a GNU extension, if the name begins with .gnu.linkonce, we
864 only link a single copy of the section. This is used to support
865 g++. g++ will emit each template expansion in its own section.
866 The symbols will be defined as weak, so that multiple definitions
867 are permitted. The GNU linker extension is to actually discard
868 all but one of the sections. */
869 if (CONST_STRNEQ (name, ".gnu.linkonce"))
870 sec_flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD;
873 if (flags_ptr == NULL)
876 * flags_ptr = sec_flags;
880 #else /* COFF_WITH_PE */
883 handle_COMDAT (bfd * abfd,
889 struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
890 bfd_byte *esymstart, *esym, *esymend;
892 char *target_name = NULL;
894 sec_flags |= SEC_LINK_ONCE;
896 /* Unfortunately, the PE format stores essential information in
897 the symbol table, of all places. We need to extract that
898 information now, so that objdump and the linker will know how
899 to handle the section without worrying about the symbols. We
900 can't call slurp_symtab, because the linker doesn't want the
903 /* COMDAT sections are special. The first symbol is the section
904 symbol, which tells what kind of COMDAT section it is. The
905 second symbol is the "comdat symbol" - the one with the
906 unique name. GNU uses the section symbol for the unique
907 name; MS uses ".text" for every comdat section. Sigh. - DJ */
909 /* This is not mirrored in sec_to_styp_flags(), but there
910 doesn't seem to be a need to, either, and it would at best be
913 if (! _bfd_coff_get_external_symbols (abfd))
916 esymstart = esym = (bfd_byte *) obj_coff_external_syms (abfd);
917 esymend = esym + obj_raw_syment_count (abfd) * bfd_coff_symesz (abfd);
919 while (esym < esymend)
921 struct internal_syment isym;
922 char buf[SYMNMLEN + 1];
925 bfd_coff_swap_sym_in (abfd, esym, & isym);
927 if (sizeof (internal_s->s_name) > SYMNMLEN)
929 /* This case implies that the matching
930 symbol name will be in the string table. */
934 if (isym.n_scnum == section->target_index)
936 /* According to the MSVC documentation, the first
937 TWO entries with the section # are both of
938 interest to us. The first one is the "section
939 symbol" (section name). The second is the comdat
940 symbol name. Here, we've found the first
941 qualifying entry; we distinguish it from the
942 second with a state flag.
944 In the case of gas-generated (at least until that
945 is fixed) .o files, it isn't necessarily the
946 second one. It may be some other later symbol.
948 Since gas also doesn't follow MS conventions and
949 emits the section similar to .text$<name>, where
950 <something> is the name we're looking for, we
951 distinguish the two as follows:
953 If the section name is simply a section name (no
954 $) we presume it's MS-generated, and look at
955 precisely the second symbol for the comdat name.
956 If the section name has a $, we assume it's
957 gas-generated, and look for <something> (whatever
958 follows the $) as the comdat symbol. */
960 /* All 3 branches use this. */
961 symname = _bfd_coff_internal_syment_name (abfd, &isym, buf);
970 /* The first time we've seen the symbol. */
971 union internal_auxent aux;
973 /* If it isn't the stuff we're expecting, die;
974 The MS documentation is vague, but it
975 appears that the second entry serves BOTH
976 as the comdat symbol and the defining
977 symbol record (either C_STAT or C_EXT,
978 possibly with an aux entry with debug
979 information if it's a function.) It
980 appears the only way to find the second one
981 is to count. (On Intel, they appear to be
982 adjacent, but on Alpha, they have been
985 Here, we think we've found the first one,
986 but there's some checking we can do to be
989 if (! ((isym.n_sclass == C_STAT
990 || isym.n_sclass == C_EXT)
991 && BTYPE (isym.n_type) == T_NULL
992 && isym.n_value == 0))
995 /* FIXME LATER: MSVC generates section names
996 like .text for comdats. Gas generates
997 names like .text$foo__Fv (in the case of a
998 function). See comment above for more. */
1000 if (isym.n_sclass == C_STAT && strcmp (name, symname) != 0)
1001 _bfd_error_handler (_("%B: warning: COMDAT symbol '%s' does not match section name '%s'"),
1002 abfd, symname, name);
1006 /* This is the section symbol. */
1007 bfd_coff_swap_aux_in (abfd, (esym + bfd_coff_symesz (abfd)),
1008 isym.n_type, isym.n_sclass,
1009 0, isym.n_numaux, & aux);
1011 target_name = strchr (name, '$');
1012 if (target_name != NULL)
1020 /* FIXME: Microsoft uses NODUPLICATES and
1021 ASSOCIATIVE, but gnu uses ANY and
1022 SAME_SIZE. Unfortunately, gnu doesn't do
1023 the comdat symbols right. So, until we can
1024 fix it to do the right thing, we are
1025 temporarily disabling comdats for the MS
1026 types (they're used in DLLs and C++, but we
1027 don't support *their* C++ libraries anyway
1030 /* Cygwin does not follow the MS style, and
1031 uses ANY and SAME_SIZE where NODUPLICATES
1032 and ASSOCIATIVE should be used. For
1033 Interix, we just do the right thing up
1036 switch (aux.x_scn.x_comdat)
1038 case IMAGE_COMDAT_SELECT_NODUPLICATES:
1039 #ifdef STRICT_PE_FORMAT
1040 sec_flags |= SEC_LINK_DUPLICATES_ONE_ONLY;
1042 sec_flags &= ~SEC_LINK_ONCE;
1046 case IMAGE_COMDAT_SELECT_ANY:
1047 sec_flags |= SEC_LINK_DUPLICATES_DISCARD;
1050 case IMAGE_COMDAT_SELECT_SAME_SIZE:
1051 sec_flags |= SEC_LINK_DUPLICATES_SAME_SIZE;
1054 case IMAGE_COMDAT_SELECT_EXACT_MATCH:
1055 /* Not yet fully implemented ??? */
1056 sec_flags |= SEC_LINK_DUPLICATES_SAME_CONTENTS;
1059 /* debug$S gets this case; other
1062 /* There may be no symbol... we'll search
1063 the whole table... Is this the right
1064 place to play this game? Or should we do
1065 it when reading it in. */
1066 case IMAGE_COMDAT_SELECT_ASSOCIATIVE:
1067 #ifdef STRICT_PE_FORMAT
1068 /* FIXME: This is not currently implemented. */
1069 sec_flags |= SEC_LINK_DUPLICATES_DISCARD;
1071 sec_flags &= ~SEC_LINK_ONCE;
1075 default: /* 0 means "no symbol" */
1076 /* debug$F gets this case; other
1078 sec_flags |= SEC_LINK_DUPLICATES_DISCARD;
1085 /* Gas mode: the first matching on partial name. */
1087 #ifndef TARGET_UNDERSCORE
1088 #define TARGET_UNDERSCORE 0
1090 /* Is this the name we're looking for ? */
1091 if (strcmp (target_name,
1092 symname + (TARGET_UNDERSCORE ? 1 : 0)) != 0)
1094 /* Not the name we're looking for */
1095 esym += (isym.n_numaux + 1) * bfd_coff_symesz (abfd);
1100 /* MSVC mode: the lexically second symbol (or
1101 drop through from the above). */
1106 /* This must the second symbol with the
1107 section #. It is the actual symbol name.
1108 Intel puts the two adjacent, but Alpha (at
1109 least) spreads them out. */
1111 amt = sizeof (struct coff_comdat_info);
1112 coff_section_data (abfd, section)->comdat
1113 = (struct coff_comdat_info *) bfd_alloc (abfd, amt);
1114 if (coff_section_data (abfd, section)->comdat == NULL)
1117 coff_section_data (abfd, section)->comdat->symbol =
1118 (esym - esymstart) / bfd_coff_symesz (abfd);
1120 amt = strlen (symname) + 1;
1121 newname = (char *) bfd_alloc (abfd, amt);
1122 if (newname == NULL)
1125 strcpy (newname, symname);
1126 coff_section_data (abfd, section)->comdat->name
1134 esym += (isym.n_numaux + 1) * bfd_coff_symesz (abfd);
1142 /* The PE version; see above for the general comments.
1144 Since to set the SEC_LINK_ONCE and associated flags, we have to
1145 look at the symbol table anyway, we return the symbol table index
1146 of the symbol being used as the COMDAT symbol. This is admittedly
1147 ugly, but there's really nowhere else that we have access to the
1148 required information. FIXME: Is the COMDAT symbol index used for
1149 any purpose other than objdump? */
1152 styp_to_sec_flags (bfd *abfd,
1156 flagword *flags_ptr)
1158 struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
1159 long styp_flags = internal_s->s_flags;
1161 bfd_boolean result = TRUE;
1162 bfd_boolean is_dbg = FALSE;
1164 if (CONST_STRNEQ (name, DOT_DEBUG)
1165 || CONST_STRNEQ (name, DOT_ZDEBUG)
1166 #ifdef COFF_LONG_SECTION_NAMES
1167 || CONST_STRNEQ (name, GNU_LINKONCE_WI)
1168 || CONST_STRNEQ (name, GNU_LINKONCE_WT)
1170 || CONST_STRNEQ (name, ".stab"))
1172 /* Assume read only unless IMAGE_SCN_MEM_WRITE is specified. */
1173 sec_flags = SEC_READONLY;
1175 /* If section disallows read, then set the NOREAD flag. */
1176 if ((styp_flags & IMAGE_SCN_MEM_READ) == 0)
1177 sec_flags |= SEC_COFF_NOREAD;
1179 /* Process each flag bit in styp_flags in turn. */
1182 long flag = styp_flags & - styp_flags;
1183 char * unhandled = NULL;
1185 styp_flags &= ~ flag;
1187 /* We infer from the distinct read/write/execute bits the settings
1188 of some of the bfd flags; the actual values, should we need them,
1189 are also in pei_section_data (abfd, section)->pe_flags. */
1194 unhandled = "STYP_DSECT";
1197 unhandled = "STYP_GROUP";
1200 unhandled = "STYP_COPY";
1203 unhandled = "STYP_OVER";
1205 #ifdef SEC_NEVER_LOAD
1207 sec_flags |= SEC_NEVER_LOAD;
1210 case IMAGE_SCN_MEM_READ:
1211 sec_flags &= ~SEC_COFF_NOREAD;
1213 case IMAGE_SCN_TYPE_NO_PAD:
1216 case IMAGE_SCN_LNK_OTHER:
1217 unhandled = "IMAGE_SCN_LNK_OTHER";
1219 case IMAGE_SCN_MEM_NOT_CACHED:
1220 unhandled = "IMAGE_SCN_MEM_NOT_CACHED";
1222 case IMAGE_SCN_MEM_NOT_PAGED:
1223 /* Generate a warning message rather using the 'unhandled'
1224 variable as this will allow some .sys files generate by
1225 other toolchains to be processed. See bugzilla issue 196. */
1226 _bfd_error_handler (_("%B: Warning: Ignoring section flag IMAGE_SCN_MEM_NOT_PAGED in section %s"),
1229 case IMAGE_SCN_MEM_EXECUTE:
1230 sec_flags |= SEC_CODE;
1232 case IMAGE_SCN_MEM_WRITE:
1233 sec_flags &= ~ SEC_READONLY;
1235 case IMAGE_SCN_MEM_DISCARDABLE:
1236 /* The MS PE spec says that debug sections are DISCARDABLE,
1237 but the presence of a DISCARDABLE flag does not necessarily
1238 mean that a given section contains debug information. Thus
1239 we only set the SEC_DEBUGGING flag on sections that we
1240 recognise as containing debug information. */
1243 || strcmp (name, _COMMENT) == 0
1247 sec_flags |= SEC_DEBUGGING | SEC_READONLY;
1250 case IMAGE_SCN_MEM_SHARED:
1251 sec_flags |= SEC_COFF_SHARED;
1253 case IMAGE_SCN_LNK_REMOVE:
1255 sec_flags |= SEC_EXCLUDE;
1257 case IMAGE_SCN_CNT_CODE:
1258 sec_flags |= SEC_CODE | SEC_ALLOC | SEC_LOAD;
1260 case IMAGE_SCN_CNT_INITIALIZED_DATA:
1262 sec_flags |= SEC_DEBUGGING;
1264 sec_flags |= SEC_DATA | SEC_ALLOC | SEC_LOAD;
1266 case IMAGE_SCN_CNT_UNINITIALIZED_DATA:
1267 sec_flags |= SEC_ALLOC;
1269 case IMAGE_SCN_LNK_INFO:
1270 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
1271 defined. coff_compute_section_file_positions uses
1272 COFF_PAGE_SIZE to ensure that the low order bits of the
1273 section VMA and the file offset match. If we don't know
1274 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
1275 and demand page loading of the file will fail. */
1276 #ifdef COFF_PAGE_SIZE
1277 sec_flags |= SEC_DEBUGGING;
1280 case IMAGE_SCN_LNK_COMDAT:
1281 /* COMDAT gets very special treatment. */
1282 sec_flags = handle_COMDAT (abfd, sec_flags, hdr, name, section);
1285 /* Silently ignore for now. */
1289 /* If the section flag was not handled, report it here. */
1290 if (unhandled != NULL)
1292 (*_bfd_error_handler)
1293 (_("%B (%s): Section flag %s (0x%x) ignored"),
1294 abfd, name, unhandled, flag);
1299 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
1300 /* As a GNU extension, if the name begins with .gnu.linkonce, we
1301 only link a single copy of the section. This is used to support
1302 g++. g++ will emit each template expansion in its own section.
1303 The symbols will be defined as weak, so that multiple definitions
1304 are permitted. The GNU linker extension is to actually discard
1305 all but one of the sections. */
1306 if (CONST_STRNEQ (name, ".gnu.linkonce"))
1307 sec_flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD;
1311 * flags_ptr = sec_flags;
1316 #endif /* COFF_WITH_PE */
1318 #define get_index(symbol) ((symbol)->udata.i)
1322 bfd_coff_backend_data
1326 .{* COFF symbol classifications. *}
1328 .enum coff_symbol_classification
1330 . {* Global symbol. *}
1331 . COFF_SYMBOL_GLOBAL,
1332 . {* Common symbol. *}
1333 . COFF_SYMBOL_COMMON,
1334 . {* Undefined symbol. *}
1335 . COFF_SYMBOL_UNDEFINED,
1336 . {* Local symbol. *}
1337 . COFF_SYMBOL_LOCAL,
1338 . {* PE section symbol. *}
1339 . COFF_SYMBOL_PE_SECTION
1342 Special entry points for gdb to swap in coff symbol table parts:
1345 . void (*_bfd_coff_swap_aux_in)
1346 . (bfd *, void *, int, int, int, int, void *);
1348 . void (*_bfd_coff_swap_sym_in)
1349 . (bfd *, void *, void *);
1351 . void (*_bfd_coff_swap_lineno_in)
1352 . (bfd *, void *, void *);
1354 . unsigned int (*_bfd_coff_swap_aux_out)
1355 . (bfd *, void *, int, int, int, int, void *);
1357 . unsigned int (*_bfd_coff_swap_sym_out)
1358 . (bfd *, void *, void *);
1360 . unsigned int (*_bfd_coff_swap_lineno_out)
1361 . (bfd *, void *, void *);
1363 . unsigned int (*_bfd_coff_swap_reloc_out)
1364 . (bfd *, void *, void *);
1366 . unsigned int (*_bfd_coff_swap_filehdr_out)
1367 . (bfd *, void *, void *);
1369 . unsigned int (*_bfd_coff_swap_aouthdr_out)
1370 . (bfd *, void *, void *);
1372 . unsigned int (*_bfd_coff_swap_scnhdr_out)
1373 . (bfd *, void *, void *);
1375 . unsigned int _bfd_filhsz;
1376 . unsigned int _bfd_aoutsz;
1377 . unsigned int _bfd_scnhsz;
1378 . unsigned int _bfd_symesz;
1379 . unsigned int _bfd_auxesz;
1380 . unsigned int _bfd_relsz;
1381 . unsigned int _bfd_linesz;
1382 . unsigned int _bfd_filnmlen;
1383 . bfd_boolean _bfd_coff_long_filenames;
1385 . bfd_boolean _bfd_coff_long_section_names;
1386 . bfd_boolean (*_bfd_coff_set_long_section_names)
1389 . unsigned int _bfd_coff_default_section_alignment_power;
1390 . bfd_boolean _bfd_coff_force_symnames_in_strings;
1391 . unsigned int _bfd_coff_debug_string_prefix_length;
1393 . void (*_bfd_coff_swap_filehdr_in)
1394 . (bfd *, void *, void *);
1396 . void (*_bfd_coff_swap_aouthdr_in)
1397 . (bfd *, void *, void *);
1399 . void (*_bfd_coff_swap_scnhdr_in)
1400 . (bfd *, void *, void *);
1402 . void (*_bfd_coff_swap_reloc_in)
1403 . (bfd *abfd, void *, void *);
1405 . bfd_boolean (*_bfd_coff_bad_format_hook)
1408 . bfd_boolean (*_bfd_coff_set_arch_mach_hook)
1411 . void * (*_bfd_coff_mkobject_hook)
1412 . (bfd *, void *, void *);
1414 . bfd_boolean (*_bfd_styp_to_sec_flags_hook)
1415 . (bfd *, void *, const char *, asection *, flagword *);
1417 . void (*_bfd_set_alignment_hook)
1418 . (bfd *, asection *, void *);
1420 . bfd_boolean (*_bfd_coff_slurp_symbol_table)
1423 . bfd_boolean (*_bfd_coff_symname_in_debug)
1424 . (bfd *, struct internal_syment *);
1426 . bfd_boolean (*_bfd_coff_pointerize_aux_hook)
1427 . (bfd *, combined_entry_type *, combined_entry_type *,
1428 . unsigned int, combined_entry_type *);
1430 . bfd_boolean (*_bfd_coff_print_aux)
1431 . (bfd *, FILE *, combined_entry_type *, combined_entry_type *,
1432 . combined_entry_type *, unsigned int);
1434 . void (*_bfd_coff_reloc16_extra_cases)
1435 . (bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *,
1436 . bfd_byte *, unsigned int *, unsigned int *);
1438 . int (*_bfd_coff_reloc16_estimate)
1439 . (bfd *, asection *, arelent *, unsigned int,
1440 . struct bfd_link_info *);
1442 . enum coff_symbol_classification (*_bfd_coff_classify_symbol)
1443 . (bfd *, struct internal_syment *);
1445 . bfd_boolean (*_bfd_coff_compute_section_file_positions)
1448 . bfd_boolean (*_bfd_coff_start_final_link)
1449 . (bfd *, struct bfd_link_info *);
1451 . bfd_boolean (*_bfd_coff_relocate_section)
1452 . (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
1453 . struct internal_reloc *, struct internal_syment *, asection **);
1455 . reloc_howto_type *(*_bfd_coff_rtype_to_howto)
1456 . (bfd *, asection *, struct internal_reloc *,
1457 . struct coff_link_hash_entry *, struct internal_syment *,
1460 . bfd_boolean (*_bfd_coff_adjust_symndx)
1461 . (bfd *, struct bfd_link_info *, bfd *, asection *,
1462 . struct internal_reloc *, bfd_boolean *);
1464 . bfd_boolean (*_bfd_coff_link_add_one_symbol)
1465 . (struct bfd_link_info *, bfd *, const char *, flagword,
1466 . asection *, bfd_vma, const char *, bfd_boolean, bfd_boolean,
1467 . struct bfd_link_hash_entry **);
1469 . bfd_boolean (*_bfd_coff_link_output_has_begun)
1470 . (bfd *, struct coff_final_link_info *);
1472 . bfd_boolean (*_bfd_coff_final_link_postscript)
1473 . (bfd *, struct coff_final_link_info *);
1475 . bfd_boolean (*_bfd_coff_print_pdata)
1478 .} bfd_coff_backend_data;
1480 .#define coff_backend_info(abfd) \
1481 . ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
1483 .#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \
1484 . ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i))
1486 .#define bfd_coff_swap_sym_in(a,e,i) \
1487 . ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))
1489 .#define bfd_coff_swap_lineno_in(a,e,i) \
1490 . ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))
1492 .#define bfd_coff_swap_reloc_out(abfd, i, o) \
1493 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))
1495 .#define bfd_coff_swap_lineno_out(abfd, i, o) \
1496 . ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))
1498 .#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \
1499 . ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o))
1501 .#define bfd_coff_swap_sym_out(abfd, i,o) \
1502 . ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))
1504 .#define bfd_coff_swap_scnhdr_out(abfd, i,o) \
1505 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))
1507 .#define bfd_coff_swap_filehdr_out(abfd, i,o) \
1508 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))
1510 .#define bfd_coff_swap_aouthdr_out(abfd, i,o) \
1511 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
1513 .#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
1514 .#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
1515 .#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
1516 .#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
1517 .#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
1518 .#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz)
1519 .#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
1520 .#define bfd_coff_filnmlen(abfd) (coff_backend_info (abfd)->_bfd_filnmlen)
1521 .#define bfd_coff_long_filenames(abfd) \
1522 . (coff_backend_info (abfd)->_bfd_coff_long_filenames)
1523 .#define bfd_coff_long_section_names(abfd) \
1524 . (coff_backend_info (abfd)->_bfd_coff_long_section_names)
1525 .#define bfd_coff_set_long_section_names(abfd, enable) \
1526 . ((coff_backend_info (abfd)->_bfd_coff_set_long_section_names) (abfd, enable))
1527 .#define bfd_coff_default_section_alignment_power(abfd) \
1528 . (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power)
1529 .#define bfd_coff_swap_filehdr_in(abfd, i,o) \
1530 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
1532 .#define bfd_coff_swap_aouthdr_in(abfd, i,o) \
1533 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))
1535 .#define bfd_coff_swap_scnhdr_in(abfd, i,o) \
1536 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
1538 .#define bfd_coff_swap_reloc_in(abfd, i, o) \
1539 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))
1541 .#define bfd_coff_bad_format_hook(abfd, filehdr) \
1542 . ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
1544 .#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
1545 . ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
1546 .#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\
1547 . ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook)\
1548 . (abfd, filehdr, aouthdr))
1550 .#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section, flags_ptr)\
1551 . ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\
1552 . (abfd, scnhdr, name, section, flags_ptr))
1554 .#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
1555 . ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
1557 .#define bfd_coff_slurp_symbol_table(abfd)\
1558 . ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))
1560 .#define bfd_coff_symname_in_debug(abfd, sym)\
1561 . ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
1563 .#define bfd_coff_force_symnames_in_strings(abfd)\
1564 . (coff_backend_info (abfd)->_bfd_coff_force_symnames_in_strings)
1566 .#define bfd_coff_debug_string_prefix_length(abfd)\
1567 . (coff_backend_info (abfd)->_bfd_coff_debug_string_prefix_length)
1569 .#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\
1570 . ((coff_backend_info (abfd)->_bfd_coff_print_aux)\
1571 . (abfd, file, base, symbol, aux, indaux))
1573 .#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order,\
1574 . reloc, data, src_ptr, dst_ptr)\
1575 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
1576 . (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))
1578 .#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\
1579 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
1580 . (abfd, section, reloc, shrink, link_info))
1582 .#define bfd_coff_classify_symbol(abfd, sym)\
1583 . ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\
1586 .#define bfd_coff_compute_section_file_positions(abfd)\
1587 . ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
1590 .#define bfd_coff_start_final_link(obfd, info)\
1591 . ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\
1593 .#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
1594 . ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
1595 . (obfd, info, ibfd, o, con, rel, isyms, secs))
1596 .#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\
1597 . ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\
1598 . (abfd, sec, rel, h, sym, addendp))
1599 .#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\
1600 . ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\
1601 . (obfd, info, ibfd, sec, rel, adjustedp))
1602 .#define bfd_coff_link_add_one_symbol(info, abfd, name, flags, section,\
1603 . value, string, cp, coll, hashp)\
1604 . ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\
1605 . (info, abfd, name, flags, section, value, string, cp, coll, hashp))
1607 .#define bfd_coff_link_output_has_begun(a,p) \
1608 . ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a, p))
1609 .#define bfd_coff_final_link_postscript(a,p) \
1610 . ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a, p))
1612 .#define bfd_coff_have_print_pdata(a) \
1613 . (coff_backend_info (a)->_bfd_coff_print_pdata)
1614 .#define bfd_coff_print_pdata(a,p) \
1615 . ((coff_backend_info (a)->_bfd_coff_print_pdata) (a, p))
1617 .{* Macro: Returns true if the bfd is a PE executable as opposed to a
1618 . PE object file. *}
1619 .#define bfd_pei_p(abfd) \
1620 . (CONST_STRNEQ ((abfd)->xvec->name, "pei-"))
1623 /* See whether the magic number matches. */
1626 coff_bad_format_hook (bfd * abfd ATTRIBUTE_UNUSED, void * filehdr)
1628 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1630 if (BADMAG (*internal_f))
1633 /* If the optional header is NULL or not the correct size then
1634 quit; the only difference I can see between m88k dgux headers (MC88DMAGIC)
1635 and Intel 960 readwrite headers (I960WRMAGIC) is that the
1636 optional header is of a different size.
1638 But the mips keeps extra stuff in it's opthdr, so dont check
1641 #if defined(M88) || defined(I960)
1642 if (internal_f->f_opthdr != 0 && bfd_coff_aoutsz (abfd) != internal_f->f_opthdr)
1651 ticoff0_bad_format_hook (bfd *abfd ATTRIBUTE_UNUSED, void * filehdr)
1653 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1655 if (COFF0_BADMAG (*internal_f))
1664 ticoff1_bad_format_hook (bfd *abfd ATTRIBUTE_UNUSED, void * filehdr)
1666 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1668 if (COFF1_BADMAG (*internal_f))
1675 /* Check whether this section uses an alignment other than the
1679 coff_set_custom_section_alignment (bfd *abfd ATTRIBUTE_UNUSED,
1681 const struct coff_section_alignment_entry *alignment_table,
1682 const unsigned int table_size)
1684 const unsigned int default_alignment = COFF_DEFAULT_SECTION_ALIGNMENT_POWER;
1687 for (i = 0; i < table_size; ++i)
1689 const char *secname = bfd_get_section_name (abfd, section);
1691 if (alignment_table[i].comparison_length == (unsigned int) -1
1692 ? strcmp (alignment_table[i].name, secname) == 0
1693 : strncmp (alignment_table[i].name, secname,
1694 alignment_table[i].comparison_length) == 0)
1697 if (i >= table_size)
1700 if (alignment_table[i].default_alignment_min != COFF_ALIGNMENT_FIELD_EMPTY
1701 && default_alignment < alignment_table[i].default_alignment_min)
1704 if (alignment_table[i].default_alignment_max != COFF_ALIGNMENT_FIELD_EMPTY
1705 #if COFF_DEFAULT_SECTION_ALIGNMENT_POWER != 0
1706 && default_alignment > alignment_table[i].default_alignment_max
1711 section->alignment_power = alignment_table[i].alignment_power;
1714 /* Custom section alignment records. */
1716 static const struct coff_section_alignment_entry
1717 coff_section_alignment_table[] =
1719 #ifdef COFF_SECTION_ALIGNMENT_ENTRIES
1720 COFF_SECTION_ALIGNMENT_ENTRIES,
1722 /* There must not be any gaps between .stabstr sections. */
1723 { COFF_SECTION_NAME_PARTIAL_MATCH (".stabstr"),
1724 1, COFF_ALIGNMENT_FIELD_EMPTY, 0 },
1725 /* The .stab section must be aligned to 2**2 at most, to avoid gaps. */
1726 { COFF_SECTION_NAME_PARTIAL_MATCH (".stab"),
1727 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 },
1728 /* Similarly for the .ctors and .dtors sections. */
1729 { COFF_SECTION_NAME_EXACT_MATCH (".ctors"),
1730 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 },
1731 { COFF_SECTION_NAME_EXACT_MATCH (".dtors"),
1732 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 }
1735 static const unsigned int coff_section_alignment_table_size =
1736 sizeof coff_section_alignment_table / sizeof coff_section_alignment_table[0];
1738 /* Initialize a section structure with information peculiar to this
1739 particular implementation of COFF. */
1742 coff_new_section_hook (bfd * abfd, asection * section)
1744 combined_entry_type *native;
1746 unsigned char sclass = C_STAT;
1748 section->alignment_power = COFF_DEFAULT_SECTION_ALIGNMENT_POWER;
1751 if (bfd_xcoff_text_align_power (abfd) != 0
1752 && strcmp (bfd_get_section_name (abfd, section), ".text") == 0)
1753 section->alignment_power = bfd_xcoff_text_align_power (abfd);
1754 else if (bfd_xcoff_data_align_power (abfd) != 0
1755 && strcmp (bfd_get_section_name (abfd, section), ".data") == 0)
1756 section->alignment_power = bfd_xcoff_data_align_power (abfd);
1761 for (i = 0; i < XCOFF_DWSECT_NBR_NAMES; i++)
1762 if (strcmp (bfd_get_section_name (abfd, section),
1763 xcoff_dwsect_names[i].name) == 0)
1765 section->alignment_power = 0;
1772 /* Set up the section symbol. */
1773 if (!_bfd_generic_new_section_hook (abfd, section))
1776 /* Allocate aux records for section symbols, to store size and
1779 @@ The 10 is a guess at a plausible maximum number of aux entries
1780 (but shouldn't be a constant). */
1781 amt = sizeof (combined_entry_type) * 10;
1782 native = (combined_entry_type *) bfd_zalloc (abfd, amt);
1786 /* We don't need to set up n_name, n_value, or n_scnum in the native
1787 symbol information, since they'll be overridden by the BFD symbol
1788 anyhow. However, we do need to set the type and storage class,
1789 in case this symbol winds up getting written out. The value 0
1790 for n_numaux is already correct. */
1792 native->u.syment.n_type = T_NULL;
1793 native->u.syment.n_sclass = sclass;
1795 coffsymbol (section->symbol)->native = native;
1797 coff_set_custom_section_alignment (abfd, section,
1798 coff_section_alignment_table,
1799 coff_section_alignment_table_size);
1804 #ifdef COFF_ALIGN_IN_SECTION_HEADER
1806 /* Set the alignment of a BFD section. */
1809 coff_set_alignment_hook (bfd * abfd ATTRIBUTE_UNUSED,
1813 struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
1817 /* Extract ALIGN from 2**ALIGN stored in section header. */
1818 for (i = 0; i < 32; i++)
1819 if ((1 << i) >= hdr->s_align)
1823 /* TI tools puts the alignment power in bits 8-11. */
1824 i = (hdr->s_flags >> 8) & 0xF ;
1826 #ifdef COFF_DECODE_ALIGNMENT
1827 i = COFF_DECODE_ALIGNMENT(hdr->s_flags);
1829 section->alignment_power = i;
1831 #ifdef coff_set_section_load_page
1832 coff_set_section_load_page (section, hdr->s_page);
1836 #else /* ! COFF_ALIGN_IN_SECTION_HEADER */
1840 coff_set_alignment_hook (bfd * abfd ATTRIBUTE_UNUSED,
1844 struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
1846 unsigned int alignment_power_const
1847 = hdr->s_flags & IMAGE_SCN_ALIGN_POWER_BIT_MASK;
1849 switch (alignment_power_const)
1851 case IMAGE_SCN_ALIGN_8192BYTES:
1852 case IMAGE_SCN_ALIGN_4096BYTES:
1853 case IMAGE_SCN_ALIGN_2048BYTES:
1854 case IMAGE_SCN_ALIGN_1024BYTES:
1855 case IMAGE_SCN_ALIGN_512BYTES:
1856 case IMAGE_SCN_ALIGN_256BYTES:
1857 case IMAGE_SCN_ALIGN_128BYTES:
1858 case IMAGE_SCN_ALIGN_64BYTES:
1859 case IMAGE_SCN_ALIGN_32BYTES:
1860 case IMAGE_SCN_ALIGN_16BYTES:
1861 case IMAGE_SCN_ALIGN_8BYTES:
1862 case IMAGE_SCN_ALIGN_4BYTES:
1863 case IMAGE_SCN_ALIGN_2BYTES:
1864 case IMAGE_SCN_ALIGN_1BYTES:
1865 section->alignment_power
1866 = IMAGE_SCN_ALIGN_POWER_NUM (alignment_power_const);
1872 /* In a PE image file, the s_paddr field holds the virtual size of a
1873 section, while the s_size field holds the raw size. We also keep
1874 the original section flag value, since not every bit can be
1875 mapped onto a generic BFD section bit. */
1876 if (coff_section_data (abfd, section) == NULL)
1878 amt = sizeof (struct coff_section_tdata);
1879 section->used_by_bfd = bfd_zalloc (abfd, amt);
1880 if (section->used_by_bfd == NULL)
1881 /* FIXME: Return error. */
1885 if (pei_section_data (abfd, section) == NULL)
1887 amt = sizeof (struct pei_section_tdata);
1888 coff_section_data (abfd, section)->tdata = bfd_zalloc (abfd, amt);
1889 if (coff_section_data (abfd, section)->tdata == NULL)
1890 /* FIXME: Return error. */
1893 pei_section_data (abfd, section)->virt_size = hdr->s_paddr;
1894 pei_section_data (abfd, section)->pe_flags = hdr->s_flags;
1896 section->lma = hdr->s_vaddr;
1898 /* Check for extended relocs. */
1899 if (hdr->s_flags & IMAGE_SCN_LNK_NRELOC_OVFL)
1901 struct external_reloc dst;
1902 struct internal_reloc n;
1903 file_ptr oldpos = bfd_tell (abfd);
1904 bfd_size_type relsz = bfd_coff_relsz (abfd);
1906 if (bfd_seek (abfd, (file_ptr) hdr->s_relptr, 0) != 0)
1908 if (bfd_bread (& dst, relsz, abfd) != relsz)
1911 coff_swap_reloc_in (abfd, &dst, &n);
1912 if (bfd_seek (abfd, oldpos, 0) != 0)
1914 section->reloc_count = hdr->s_nreloc = n.r_vaddr - 1;
1915 section->rel_filepos += relsz;
1917 else if (hdr->s_nreloc == 0xffff)
1918 (*_bfd_error_handler)
1919 ("%s: warning: claims to have 0xffff relocs, without overflow",
1920 bfd_get_filename (abfd));
1923 #undef ELIFALIGN_SET
1925 #else /* ! COFF_WITH_PE */
1928 /* We grossly abuse this function to handle XCOFF overflow headers.
1929 When we see one, we correct the reloc and line number counts in the
1930 real header, and remove the section we just created. */
1933 coff_set_alignment_hook (bfd *abfd, asection *section, void * scnhdr)
1935 struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
1938 if ((hdr->s_flags & STYP_OVRFLO) == 0)
1941 real_sec = coff_section_from_bfd_index (abfd, (int) hdr->s_nreloc);
1942 if (real_sec == NULL)
1945 real_sec->reloc_count = hdr->s_paddr;
1946 real_sec->lineno_count = hdr->s_vaddr;
1948 if (!bfd_section_removed_from_list (abfd, section))
1950 bfd_section_list_remove (abfd, section);
1951 --abfd->section_count;
1955 #else /* ! RS6000COFF_C */
1957 #define coff_set_alignment_hook \
1958 ((void (*) (bfd *, asection *, void *)) bfd_void)
1960 #endif /* ! RS6000COFF_C */
1961 #endif /* ! COFF_WITH_PE */
1962 #endif /* ! COFF_ALIGN_IN_SECTION_HEADER */
1964 #ifndef coff_mkobject
1967 coff_mkobject (bfd * abfd)
1969 coff_data_type *coff;
1970 bfd_size_type amt = sizeof (coff_data_type);
1972 abfd->tdata.coff_obj_data = bfd_zalloc (abfd, amt);
1973 if (abfd->tdata.coff_obj_data == NULL)
1975 coff = coff_data (abfd);
1976 coff->symbols = NULL;
1977 coff->conversion_table = NULL;
1978 coff->raw_syments = NULL;
1979 coff->relocbase = 0;
1980 coff->local_toc_sym_map = 0;
1982 /* make_abs_section(abfd);*/
1988 /* Create the COFF backend specific information. */
1990 #ifndef coff_mkobject_hook
1992 coff_mkobject_hook (bfd * abfd,
1994 void * aouthdr ATTRIBUTE_UNUSED)
1996 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1997 coff_data_type *coff;
1999 if (! coff_mkobject (abfd))
2002 coff = coff_data (abfd);
2004 coff->sym_filepos = internal_f->f_symptr;
2006 /* These members communicate important constants about the symbol
2007 table to GDB's symbol-reading code. These `constants'
2008 unfortunately vary among coff implementations... */
2009 coff->local_n_btmask = N_BTMASK;
2010 coff->local_n_btshft = N_BTSHFT;
2011 coff->local_n_tmask = N_TMASK;
2012 coff->local_n_tshift = N_TSHIFT;
2013 coff->local_symesz = bfd_coff_symesz (abfd);
2014 coff->local_auxesz = bfd_coff_auxesz (abfd);
2015 coff->local_linesz = bfd_coff_linesz (abfd);
2017 coff->timestamp = internal_f->f_timdat;
2019 obj_raw_syment_count (abfd) =
2020 obj_conv_table_size (abfd) =
2021 internal_f->f_nsyms;
2024 if ((internal_f->f_flags & F_SHROBJ) != 0)
2025 abfd->flags |= DYNAMIC;
2026 if (aouthdr != NULL && internal_f->f_opthdr >= bfd_coff_aoutsz (abfd))
2028 struct internal_aouthdr *internal_a =
2029 (struct internal_aouthdr *) aouthdr;
2030 struct xcoff_tdata *xcoff;
2032 xcoff = xcoff_data (abfd);
2033 # ifdef U803XTOCMAGIC
2034 xcoff->xcoff64 = internal_f->f_magic == U803XTOCMAGIC;
2038 xcoff->full_aouthdr = TRUE;
2039 xcoff->toc = internal_a->o_toc;
2040 xcoff->sntoc = internal_a->o_sntoc;
2041 xcoff->snentry = internal_a->o_snentry;
2042 bfd_xcoff_text_align_power (abfd) = internal_a->o_algntext;
2043 bfd_xcoff_data_align_power (abfd) = internal_a->o_algndata;
2044 xcoff->modtype = internal_a->o_modtype;
2045 xcoff->cputype = internal_a->o_cputype;
2046 xcoff->maxdata = internal_a->o_maxdata;
2047 xcoff->maxstack = internal_a->o_maxstack;
2052 /* Set the flags field from the COFF header read in. */
2053 if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags))
2058 /* FIXME: I'm not sure this is ever executed, since peicode.h
2059 defines coff_mkobject_hook. */
2060 if ((internal_f->f_flags & IMAGE_FILE_DEBUG_STRIPPED) == 0)
2061 abfd->flags |= HAS_DEBUG;
2064 if ((internal_f->f_flags & F_GO32STUB) != 0)
2065 coff->go32stub = (char *) bfd_alloc (abfd, (bfd_size_type) GO32_STUBSIZE);
2066 if (coff->go32stub != NULL)
2067 memcpy (coff->go32stub, internal_f->go32stub, GO32_STUBSIZE);
2073 /* Determine the machine architecture and type. FIXME: This is target
2074 dependent because the magic numbers are defined in the target
2075 dependent header files. But there is no particular need for this.
2076 If the magic numbers were moved to a separate file, this function
2077 would be target independent and would also be much more successful
2078 at linking together COFF files for different architectures. */
2081 coff_set_arch_mach_hook (bfd *abfd, void * filehdr)
2083 unsigned long machine;
2084 enum bfd_architecture arch;
2085 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
2087 /* Zero selects the default machine for an arch. */
2089 switch (internal_f->f_magic)
2091 #ifdef OR32_MAGIC_BIG
2092 case OR32_MAGIC_BIG:
2093 case OR32_MAGIC_LITTLE:
2094 arch = bfd_arch_or32;
2099 arch = bfd_arch_powerpc;
2105 case I386AIXMAGIC: /* Danbury PS/2 AIX C Compiler. */
2106 case LYNXCOFFMAGIC: /* Shadows the m68k Lynx number below, sigh. */
2107 arch = bfd_arch_i386;
2112 arch = bfd_arch_i386;
2113 machine = bfd_mach_x86_64;
2118 arch = bfd_arch_ia64;
2125 arch = bfd_arch_arm;
2126 machine = bfd_arm_get_mach_from_notes (abfd, ARM_NOTE_SECTION);
2127 if (machine == bfd_mach_arm_unknown)
2129 switch (internal_f->f_flags & F_ARM_ARCHITECTURE_MASK)
2131 case F_ARM_2: machine = bfd_mach_arm_2; break;
2132 case F_ARM_2a: machine = bfd_mach_arm_2a; break;
2133 case F_ARM_3: machine = bfd_mach_arm_3; break;
2135 case F_ARM_3M: machine = bfd_mach_arm_3M; break;
2136 case F_ARM_4: machine = bfd_mach_arm_4; break;
2137 case F_ARM_4T: machine = bfd_mach_arm_4T; break;
2138 /* The COFF header does not have enough bits available
2139 to cover all the different ARM architectures. So
2140 we interpret F_ARM_5, the highest flag value to mean
2141 "the highest ARM architecture known to BFD" which is
2142 currently the XScale. */
2143 case F_ARM_5: machine = bfd_mach_arm_XScale; break;
2151 #ifdef MC68KBCSMAGIC
2154 #ifdef APOLLOM68KMAGIC
2155 case APOLLOM68KMAGIC:
2157 #ifdef LYNXCOFFMAGIC
2160 arch = bfd_arch_m68k;
2161 machine = bfd_mach_m68020;
2168 arch = bfd_arch_m88k;
2174 arch = bfd_arch_z80;
2175 switch (internal_f->f_flags & F_MACHMASK)
2178 case bfd_mach_z80strict << 12:
2179 case bfd_mach_z80 << 12:
2180 case bfd_mach_z80full << 12:
2181 case bfd_mach_r800 << 12:
2182 machine = ((unsigned)internal_f->f_flags & F_MACHMASK) >> 12;
2191 arch = bfd_arch_z8k;
2192 switch (internal_f->f_flags & F_MACHMASK)
2195 machine = bfd_mach_z8001;
2198 machine = bfd_mach_z8002;
2207 arch = bfd_arch_i860;
2214 arch = bfd_arch_i960;
2215 switch (F_I960TYPE & internal_f->f_flags)
2219 machine = bfd_mach_i960_core;
2222 machine = bfd_mach_i960_kb_sb;
2225 machine = bfd_mach_i960_mc;
2228 machine = bfd_mach_i960_xa;
2231 machine = bfd_mach_i960_ca;
2234 machine = bfd_mach_i960_ka_sa;
2237 machine = bfd_mach_i960_jx;
2240 machine = bfd_mach_i960_hx;
2259 if (xcoff_data (abfd)->cputype != -1)
2260 cputype = xcoff_data (abfd)->cputype & 0xff;
2263 /* We did not get a value from the a.out header. If the
2264 file has not been stripped, we may be able to get the
2265 architecture information from the first symbol, if it
2266 is a .file symbol. */
2267 if (obj_raw_syment_count (abfd) == 0)
2272 struct internal_syment sym;
2273 bfd_size_type amt = bfd_coff_symesz (abfd);
2275 buf = bfd_malloc (amt);
2276 if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0
2277 || bfd_bread (buf, amt, abfd) != amt)
2282 bfd_coff_swap_sym_in (abfd, buf, & sym);
2283 if (sym.n_sclass == C_FILE)
2284 cputype = sym.n_type & 0xff;
2291 /* FIXME: We don't handle all cases here. */
2296 arch = bfd_xcoff_architecture (abfd);
2297 machine = bfd_xcoff_machine (abfd);
2301 arch = bfd_arch_powerpc;
2302 machine = bfd_mach_ppc_601;
2304 case 2: /* 64 bit PowerPC */
2305 arch = bfd_arch_powerpc;
2306 machine = bfd_mach_ppc_620;
2309 arch = bfd_arch_powerpc;
2310 machine = bfd_mach_ppc;
2313 arch = bfd_arch_rs6000;
2314 machine = bfd_mach_rs6k;
2323 arch = bfd_arch_we32k;
2329 arch = bfd_arch_h8300;
2330 machine = bfd_mach_h8300;
2331 /* !! FIXME this probably isn't the right place for this. */
2332 abfd->flags |= BFD_IS_RELAXABLE;
2338 arch = bfd_arch_h8300;
2339 machine = bfd_mach_h8300h;
2340 /* !! FIXME this probably isn't the right place for this. */
2341 abfd->flags |= BFD_IS_RELAXABLE;
2347 arch = bfd_arch_h8300;
2348 machine = bfd_mach_h8300s;
2349 /* !! FIXME this probably isn't the right place for this. */
2350 abfd->flags |= BFD_IS_RELAXABLE;
2356 arch = bfd_arch_h8300;
2357 machine = bfd_mach_h8300hn;
2358 /* !! FIXME this probably isn't the right place for this. */
2359 abfd->flags |= BFD_IS_RELAXABLE;
2365 arch = bfd_arch_h8300;
2366 machine = bfd_mach_h8300sn;
2367 /* !! FIXME this probably isn't the right place for this. */
2368 abfd->flags |= BFD_IS_RELAXABLE;
2372 #ifdef SH_ARCH_MAGIC_BIG
2373 case SH_ARCH_MAGIC_BIG:
2374 case SH_ARCH_MAGIC_LITTLE:
2376 case SH_ARCH_MAGIC_WINCE:
2382 #ifdef MIPS_ARCH_MAGIC_WINCE
2383 case MIPS_ARCH_MAGIC_WINCE:
2384 arch = bfd_arch_mips;
2390 arch = bfd_arch_h8500;
2396 #ifdef LYNXCOFFMAGIC
2399 arch = bfd_arch_sparc;
2405 arch = bfd_arch_tic30;
2410 #ifdef TICOFF_TARGET_ARCH
2411 /* This TI COFF section should be used by all new TI COFF v0 targets. */
2413 arch = TICOFF_TARGET_ARCH;
2414 machine = TICOFF_TARGET_MACHINE_GET (internal_f->f_flags);
2420 /* This TI COFF section should be used by all new TI COFF v1/2 targets. */
2421 /* TI COFF1 and COFF2 use the target_id field to specify which arch. */
2424 switch (internal_f->f_target_id)
2428 arch = TICOFF_TARGET_ARCH;
2429 machine = TICOFF_TARGET_MACHINE_GET (internal_f->f_flags);
2433 arch = bfd_arch_obscure;
2434 (*_bfd_error_handler)
2435 (_("Unrecognized TI COFF target id '0x%x'"),
2436 internal_f->f_target_id);
2442 #ifdef TIC80_ARCH_MAGIC
2443 case TIC80_ARCH_MAGIC:
2444 arch = bfd_arch_tic80;
2450 arch = bfd_arch_mcore;
2456 arch = bfd_arch_w65;
2460 default: /* Unreadable input file type. */
2461 arch = bfd_arch_obscure;
2465 bfd_default_set_arch_mach (abfd, arch, machine);
2469 #ifdef SYMNAME_IN_DEBUG
2472 symname_in_debug_hook (bfd * abfd ATTRIBUTE_UNUSED, struct internal_syment *sym)
2474 return SYMNAME_IN_DEBUG (sym) != 0;
2479 #define symname_in_debug_hook \
2480 (bfd_boolean (*) (bfd *, struct internal_syment *)) bfd_false
2487 #define FORCE_SYMNAMES_IN_STRINGS
2490 /* Handle the csect auxent of a C_EXT, C_AIX_WEAKEXT or C_HIDEXT symbol. */
2493 coff_pointerize_aux_hook (bfd *abfd ATTRIBUTE_UNUSED,
2494 combined_entry_type *table_base,
2495 combined_entry_type *symbol,
2496 unsigned int indaux,
2497 combined_entry_type *aux)
2499 int n_sclass = symbol->u.syment.n_sclass;
2501 if (CSECT_SYM_P (n_sclass)
2502 && indaux + 1 == symbol->u.syment.n_numaux)
2504 if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) == XTY_LD)
2506 aux->u.auxent.x_csect.x_scnlen.p =
2507 table_base + aux->u.auxent.x_csect.x_scnlen.l;
2508 aux->fix_scnlen = 1;
2511 /* Return TRUE to indicate that the caller should not do any
2512 further work on this auxent. */
2516 /* Return FALSE to indicate that this auxent should be handled by
2524 /* We don't want to pointerize bal entries. */
2527 coff_pointerize_aux_hook (bfd *abfd ATTRIBUTE_UNUSED,
2528 combined_entry_type *table_base ATTRIBUTE_UNUSED,
2529 combined_entry_type *symbol,
2530 unsigned int indaux,
2531 combined_entry_type *aux ATTRIBUTE_UNUSED)
2533 /* Return TRUE if we don't want to pointerize this aux entry, which
2534 is the case for the lastfirst aux entry for a C_LEAFPROC symbol. */
2536 && (symbol->u.syment.n_sclass == C_LEAFPROC
2537 || symbol->u.syment.n_sclass == C_LEAFSTAT
2538 || symbol->u.syment.n_sclass == C_LEAFEXT));
2543 #define coff_pointerize_aux_hook 0
2546 #endif /* ! RS6000COFF_C */
2548 /* Print an aux entry. This returns TRUE if it has printed it. */
2551 coff_print_aux (bfd *abfd ATTRIBUTE_UNUSED,
2552 FILE *file ATTRIBUTE_UNUSED,
2553 combined_entry_type *table_base ATTRIBUTE_UNUSED,
2554 combined_entry_type *symbol ATTRIBUTE_UNUSED,
2555 combined_entry_type *aux ATTRIBUTE_UNUSED,
2556 unsigned int indaux ATTRIBUTE_UNUSED)
2559 if (CSECT_SYM_P (symbol->u.syment.n_sclass)
2560 && indaux + 1 == symbol->u.syment.n_numaux)
2562 /* This is a csect entry. */
2563 fprintf (file, "AUX ");
2564 if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) != XTY_LD)
2566 BFD_ASSERT (! aux->fix_scnlen);
2568 fprintf (file, "val %5lld",
2569 (long long) aux->u.auxent.x_csect.x_scnlen.l);
2571 fprintf (file, "val %5ld", (long) aux->u.auxent.x_csect.x_scnlen.l);
2576 fprintf (file, "indx ");
2577 if (! aux->fix_scnlen)
2579 fprintf (file, "%4lld",
2580 (long long) aux->u.auxent.x_csect.x_scnlen.l);
2582 fprintf (file, "%4ld", (long) aux->u.auxent.x_csect.x_scnlen.l);
2585 fprintf (file, "%4ld",
2586 (long) (aux->u.auxent.x_csect.x_scnlen.p - table_base));
2589 " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u",
2590 aux->u.auxent.x_csect.x_parmhash,
2591 (unsigned int) aux->u.auxent.x_csect.x_snhash,
2592 SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp),
2593 SMTYP_ALIGN (aux->u.auxent.x_csect.x_smtyp),
2594 (unsigned int) aux->u.auxent.x_csect.x_smclas,
2595 aux->u.auxent.x_csect.x_stab,
2596 (unsigned int) aux->u.auxent.x_csect.x_snstab);
2601 /* Return FALSE to indicate that no special action was taken. */
2609 To write relocations, the back end steps though the
2610 canonical relocation table and create an
2611 @code{internal_reloc}. The symbol index to use is removed from
2612 the @code{offset} field in the symbol table supplied. The
2613 address comes directly from the sum of the section base
2614 address and the relocation offset; the type is dug directly
2615 from the howto field. Then the @code{internal_reloc} is
2616 swapped into the shape of an @code{external_reloc} and written
2624 /* AUX's ld wants relocations to be sorted. */
2626 compare_arelent_ptr (const void * x, const void * y)
2628 const arelent **a = (const arelent **) x;
2629 const arelent **b = (const arelent **) y;
2630 bfd_size_type aadr = (*a)->address;
2631 bfd_size_type badr = (*b)->address;
2633 return (aadr < badr ? -1 : badr < aadr ? 1 : 0);
2636 #endif /* TARG_AUX */
2639 coff_write_relocs (bfd * abfd, int first_undef)
2643 for (s = abfd->sections; s != NULL; s = s->next)
2646 struct external_reloc dst;
2653 /* Sort relocations before we write them out. */
2656 amt = s->reloc_count;
2657 amt *= sizeof (arelent *);
2658 p = bfd_malloc (amt);
2659 if (p == NULL && s->reloc_count > 0)
2661 memcpy (p, s->orelocation, (size_t) amt);
2662 qsort (p, s->reloc_count, sizeof (arelent *), compare_arelent_ptr);
2666 if (bfd_seek (abfd, s->rel_filepos, SEEK_SET) != 0)
2670 if (obj_pe (abfd) && s->reloc_count >= 0xffff)
2672 /* Encode real count here as first reloc. */
2673 struct internal_reloc n;
2675 memset (& n, 0, sizeof (n));
2676 /* Add one to count *this* reloc (grr). */
2677 n.r_vaddr = s->reloc_count + 1;
2678 coff_swap_reloc_out (abfd, &n, &dst);
2679 if (bfd_bwrite (& dst, (bfd_size_type) bfd_coff_relsz (abfd),
2680 abfd) != bfd_coff_relsz (abfd))
2685 for (i = 0; i < s->reloc_count; i++)
2687 struct internal_reloc n;
2690 memset (& n, 0, sizeof (n));
2692 /* Now we've renumbered the symbols we know where the
2693 undefined symbols live in the table. Check the reloc
2694 entries for symbols who's output bfd isn't the right one.
2695 This is because the symbol was undefined (which means
2696 that all the pointers are never made to point to the same
2697 place). This is a bad thing,'cause the symbols attached
2698 to the output bfd are indexed, so that the relocation
2699 entries know which symbol index they point to. So we
2700 have to look up the output symbol here. */
2702 if (q->sym_ptr_ptr[0] != NULL && q->sym_ptr_ptr[0]->the_bfd != abfd)
2705 const char *sname = q->sym_ptr_ptr[0]->name;
2706 asymbol **outsyms = abfd->outsymbols;
2708 for (j = first_undef; outsyms[j]; j++)
2710 const char *intable = outsyms[j]->name;
2712 if (strcmp (intable, sname) == 0)
2714 /* Got a hit, so repoint the reloc. */
2715 q->sym_ptr_ptr = outsyms + j;
2721 n.r_vaddr = q->address + s->vma;
2724 /* The 29k const/consth reloc pair is a real kludge. The consth
2725 part doesn't have a symbol; it has an offset. So rebuilt
2727 if (q->howto->type == R_IHCONST)
2728 n.r_symndx = q->addend;
2731 if (q->sym_ptr_ptr && q->sym_ptr_ptr[0] != NULL)
2733 #ifdef SECTION_RELATIVE_ABSOLUTE_SYMBOL_P
2734 if (SECTION_RELATIVE_ABSOLUTE_SYMBOL_P (q, s))
2736 if ((*q->sym_ptr_ptr)->section == bfd_abs_section_ptr
2737 && ((*q->sym_ptr_ptr)->flags & BSF_SECTION_SYM) != 0)
2739 /* This is a relocation relative to the absolute symbol. */
2743 n.r_symndx = get_index ((*(q->sym_ptr_ptr)));
2744 /* Check to see if the symbol reloc points to a symbol
2745 we don't have in our symbol table. */
2746 if (n.r_symndx > obj_conv_table_size (abfd))
2748 bfd_set_error (bfd_error_bad_value);
2749 _bfd_error_handler (_("%B: reloc against a non-existant symbol index: %ld"),
2756 #ifdef SWAP_OUT_RELOC_OFFSET
2757 n.r_offset = q->addend;
2761 /* Work out reloc type from what is required. */
2762 SELECT_RELOC (n, q->howto);
2764 n.r_type = q->howto->type;
2766 coff_swap_reloc_out (abfd, &n, &dst);
2768 if (bfd_bwrite (& dst, (bfd_size_type) bfd_coff_relsz (abfd),
2769 abfd) != bfd_coff_relsz (abfd))
2782 /* Set flags and magic number of a coff file from architecture and machine
2783 type. Result is TRUE if we can represent the arch&type, FALSE if not. */
2786 coff_set_flags (bfd * abfd,
2787 unsigned int *magicp ATTRIBUTE_UNUSED,
2788 unsigned short *flagsp ATTRIBUTE_UNUSED)
2790 switch (bfd_get_arch (abfd))
2795 switch (bfd_get_mach (abfd))
2798 case bfd_mach_z80strict:
2800 case bfd_mach_z80full:
2802 *flagsp = bfd_get_mach (abfd) << 12;
2814 switch (bfd_get_mach (abfd))
2816 case bfd_mach_z8001: *flagsp = F_Z8001; break;
2817 case bfd_mach_z8002: *flagsp = F_Z8002; break;
2818 default: return FALSE;
2829 *magicp = I960ROMAGIC;
2831 switch (bfd_get_mach (abfd))
2833 case bfd_mach_i960_core: flags = F_I960CORE; break;
2834 case bfd_mach_i960_kb_sb: flags = F_I960KB; break;
2835 case bfd_mach_i960_mc: flags = F_I960MC; break;
2836 case bfd_mach_i960_xa: flags = F_I960XA; break;
2837 case bfd_mach_i960_ca: flags = F_I960CA; break;
2838 case bfd_mach_i960_ka_sa: flags = F_I960KA; break;
2839 case bfd_mach_i960_jx: flags = F_I960JX; break;
2840 case bfd_mach_i960_hx: flags = F_I960HX; break;
2841 default: return FALSE;
2850 case bfd_arch_tic30:
2851 *magicp = TIC30MAGIC;
2855 #ifdef TICOFF_DEFAULT_MAGIC
2856 case TICOFF_TARGET_ARCH:
2857 /* If there's no indication of which version we want, use the default. */
2859 *magicp = TICOFF_DEFAULT_MAGIC;
2862 /* We may want to output in a different COFF version. */
2863 switch (abfd->xvec->name[4])
2866 *magicp = TICOFF0MAGIC;
2869 *magicp = TICOFF1MAGIC;
2872 *magicp = TICOFF2MAGIC;
2878 TICOFF_TARGET_MACHINE_SET (flagsp, bfd_get_mach (abfd));
2882 #ifdef TIC80_ARCH_MAGIC
2883 case bfd_arch_tic80:
2884 *magicp = TIC80_ARCH_MAGIC;
2891 * magicp = ARMPEMAGIC;
2893 * magicp = ARMMAGIC;
2896 if (APCS_SET (abfd))
2898 if (APCS_26_FLAG (abfd))
2899 * flagsp |= F_APCS26;
2901 if (APCS_FLOAT_FLAG (abfd))
2902 * flagsp |= F_APCS_FLOAT;
2904 if (PIC_FLAG (abfd))
2907 if (INTERWORK_SET (abfd) && INTERWORK_FLAG (abfd))
2908 * flagsp |= F_INTERWORK;
2909 switch (bfd_get_mach (abfd))
2911 case bfd_mach_arm_2: * flagsp |= F_ARM_2; break;
2912 case bfd_mach_arm_2a: * flagsp |= F_ARM_2a; break;
2913 case bfd_mach_arm_3: * flagsp |= F_ARM_3; break;
2914 case bfd_mach_arm_3M: * flagsp |= F_ARM_3M; break;
2915 case bfd_mach_arm_4: * flagsp |= F_ARM_4; break;
2916 case bfd_mach_arm_4T: * flagsp |= F_ARM_4T; break;
2917 case bfd_mach_arm_5: * flagsp |= F_ARM_5; break;
2918 /* FIXME: we do not have F_ARM vaues greater than F_ARM_5.
2919 See also the comment in coff_set_arch_mach_hook(). */
2920 case bfd_mach_arm_5T: * flagsp |= F_ARM_5; break;
2921 case bfd_mach_arm_5TE: * flagsp |= F_ARM_5; break;
2922 case bfd_mach_arm_XScale: * flagsp |= F_ARM_5; break;
2928 case bfd_arch_powerpc:
2933 #if defined(I386MAGIC) || defined(AMD64MAGIC)
2935 #if defined(I386MAGIC)
2936 *magicp = I386MAGIC;
2939 /* Just overwrite the usual value if we're doing Lynx. */
2940 *magicp = LYNXCOFFMAGIC;
2942 #if defined AMD64MAGIC
2943 *magicp = AMD64MAGIC;
2950 *magicp = I860MAGIC;
2956 *magicp = IA64MAGIC;
2962 #ifdef APOLLOM68KMAGIC
2963 *magicp = APOLLO_COFF_VERSION_NUMBER;
2965 /* NAMES_HAVE_UNDERSCORE may be defined by coff-u68k.c. */
2966 #ifdef NAMES_HAVE_UNDERSCORE
2967 *magicp = MC68KBCSMAGIC;
2969 *magicp = MC68MAGIC;
2973 /* Just overwrite the usual value if we're doing Lynx. */
2974 *magicp = LYNXCOFFMAGIC;
2981 *magicp = MC88OMAGIC;
2986 case bfd_arch_h8300:
2987 switch (bfd_get_mach (abfd))
2989 case bfd_mach_h8300: *magicp = H8300MAGIC; return TRUE;
2990 case bfd_mach_h8300h: *magicp = H8300HMAGIC; return TRUE;
2991 case bfd_mach_h8300s: *magicp = H8300SMAGIC; return TRUE;
2992 case bfd_mach_h8300hn: *magicp = H8300HNMAGIC; return TRUE;
2993 case bfd_mach_h8300sn: *magicp = H8300SNMAGIC; return TRUE;
2999 #ifdef SH_ARCH_MAGIC_BIG
3001 #ifdef COFF_IMAGE_WITH_PE
3002 *magicp = SH_ARCH_MAGIC_WINCE;
3004 if (bfd_big_endian (abfd))
3005 *magicp = SH_ARCH_MAGIC_BIG;
3007 *magicp = SH_ARCH_MAGIC_LITTLE;
3012 #ifdef MIPS_ARCH_MAGIC_WINCE
3014 *magicp = MIPS_ARCH_MAGIC_WINCE;
3019 case bfd_arch_sparc:
3020 *magicp = SPARCMAGIC;
3022 /* Just overwrite the usual value if we're doing Lynx. */
3023 *magicp = LYNXCOFFMAGIC;
3029 case bfd_arch_h8500:
3030 *magicp = H8500MAGIC;
3036 case bfd_arch_we32k:
3037 *magicp = WE32KMAGIC;
3042 case bfd_arch_rs6000:
3044 case bfd_arch_powerpc:
3046 BFD_ASSERT (bfd_get_flavour (abfd) == bfd_target_xcoff_flavour);
3047 *magicp = bfd_xcoff_magic_number (abfd);
3052 case bfd_arch_mcore:
3053 * magicp = MCOREMAGIC;
3063 #ifdef OR32_MAGIC_BIG
3065 if (bfd_big_endian (abfd))
3066 * magicp = OR32_MAGIC_BIG;
3068 * magicp = OR32_MAGIC_LITTLE;
3072 default: /* Unknown architecture. */
3073 /* Fall through to "return FALSE" below, to avoid
3074 "statement never reached" errors on the one below. */
3082 coff_set_arch_mach (bfd * abfd,
3083 enum bfd_architecture arch,
3084 unsigned long machine)
3087 unsigned short dummy2;
3089 if (! bfd_default_set_arch_mach (abfd, arch, machine))
3092 if (arch != bfd_arch_unknown
3093 && ! coff_set_flags (abfd, &dummy1, &dummy2))
3094 return FALSE; /* We can't represent this type. */
3096 return TRUE; /* We're easy... */
3099 #ifdef COFF_IMAGE_WITH_PE
3101 /* This is used to sort sections by VMA, as required by PE image
3105 sort_by_secaddr (const void * arg1, const void * arg2)
3107 const asection *a = *(const asection **) arg1;
3108 const asection *b = *(const asection **) arg2;
3110 if (a->vma < b->vma)
3112 else if (a->vma > b->vma)
3118 #endif /* COFF_IMAGE_WITH_PE */
3120 /* Calculate the file position for each section. */
3123 #define ALIGN_SECTIONS_IN_FILE
3125 #if defined(TIC80COFF) || defined(TICOFF)
3126 #undef ALIGN_SECTIONS_IN_FILE
3130 coff_compute_section_file_positions (bfd * abfd)
3133 file_ptr sofar = bfd_coff_filhsz (abfd);
3134 bfd_boolean align_adjust;
3136 #ifdef ALIGN_SECTIONS_IN_FILE
3137 asection *previous = NULL;
3141 #ifdef COFF_IMAGE_WITH_PE
3144 if (coff_data (abfd)->link_info)
3146 page_size = pe_data (abfd)->pe_opthdr.FileAlignment;
3148 /* If no file alignment has been set, default to one.
3149 This repairs 'ld -r' for arm-wince-pe target. */
3154 page_size = PE_DEF_FILE_ALIGNMENT;
3156 #ifdef COFF_PAGE_SIZE
3157 int page_size = COFF_PAGE_SIZE;
3162 /* On XCOFF, if we have symbols, set up the .debug section. */
3163 if (bfd_get_symcount (abfd) > 0)
3166 bfd_size_type i, symcount;
3170 symcount = bfd_get_symcount (abfd);
3171 for (symp = abfd->outsymbols, i = 0; i < symcount; symp++, i++)
3173 coff_symbol_type *cf;
3175 cf = coff_symbol_from (abfd, *symp);
3177 && cf->native != NULL
3178 && SYMNAME_IN_DEBUG (&cf->native->u.syment))
3182 len = strlen (bfd_asymbol_name (*symp));
3183 if (len > SYMNMLEN || bfd_coff_force_symnames_in_strings (abfd))
3184 sz += len + 1 + bfd_coff_debug_string_prefix_length (abfd);
3191 dsec = bfd_make_section_old_way (abfd, DOT_DEBUG);
3195 dsec->flags |= SEC_HAS_CONTENTS;
3200 if (bfd_get_start_address (abfd))
3201 /* A start address may have been added to the original file. In this
3202 case it will need an optional header to record it. */
3203 abfd->flags |= EXEC_P;
3205 if (abfd->flags & EXEC_P)
3206 sofar += bfd_coff_aoutsz (abfd);
3208 else if (xcoff_data (abfd)->full_aouthdr)
3209 sofar += bfd_coff_aoutsz (abfd);
3211 sofar += SMALL_AOUTSZ;
3214 sofar += abfd->section_count * bfd_coff_scnhsz (abfd);
3217 /* XCOFF handles overflows in the reloc and line number count fields
3218 by allocating a new section header to hold the correct counts. */
3219 for (current = abfd->sections; current != NULL; current = current->next)
3220 if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
3221 sofar += bfd_coff_scnhsz (abfd);
3224 #ifdef COFF_IMAGE_WITH_PE
3226 /* PE requires the sections to be in memory order when listed in
3227 the section headers. It also does not like empty loadable
3228 sections. The sections apparently do not have to be in the
3229 right order in the image file itself, but we do need to get the
3230 target_index values right. */
3233 asection **section_list;
3237 #ifdef COFF_PAGE_SIZE
3238 /* Clear D_PAGED if section alignment is smaller than
3240 if (pe_data (abfd)->pe_opthdr.SectionAlignment < COFF_PAGE_SIZE)
3241 abfd->flags &= ~D_PAGED;
3245 for (current = abfd->sections; current != NULL; current = current->next)
3248 /* We allocate an extra cell to simplify the final loop. */
3249 amt = sizeof (struct asection *) * (count + 1);
3250 section_list = (asection **) bfd_malloc (amt);
3251 if (section_list == NULL)
3255 for (current = abfd->sections; current != NULL; current = current->next)
3257 section_list[i] = current;
3260 section_list[i] = NULL;
3262 qsort (section_list, count, sizeof (asection *), sort_by_secaddr);
3264 /* Rethread the linked list into sorted order; at the same time,
3265 assign target_index values. */
3267 abfd->sections = NULL;
3268 abfd->section_last = NULL;
3269 for (i = 0; i < count; i++)
3271 current = section_list[i];
3272 bfd_section_list_append (abfd, current);
3274 /* Later, if the section has zero size, we'll be throwing it
3275 away, so we don't want to number it now. Note that having
3276 a zero size and having real contents are different
3277 concepts: .bss has no contents, but (usually) non-zero
3279 if (current->size == 0)
3281 /* Discard. However, it still might have (valid) symbols
3282 in it, so arbitrarily set it to section 1 (indexing is
3283 1-based here; usually .text). __end__ and other
3284 contents of .endsection really have this happen.
3285 FIXME: This seems somewhat dubious. */
3286 current->target_index = 1;
3289 current->target_index = target_index++;
3292 free (section_list);
3294 #else /* ! COFF_IMAGE_WITH_PE */
3296 /* Set the target_index field. */
3298 for (current = abfd->sections; current != NULL; current = current->next)
3299 current->target_index = target_index++;
3301 #endif /* ! COFF_IMAGE_WITH_PE */
3303 if (target_index >= 32768)
3305 bfd_set_error (bfd_error_file_too_big);
3306 (*_bfd_error_handler)
3307 (_("%B: too many sections (%d)"), abfd, target_index);
3311 align_adjust = FALSE;
3312 for (current = abfd->sections;
3314 current = current->next)
3316 #ifdef COFF_IMAGE_WITH_PE
3317 /* With PE we have to pad each section to be a multiple of its
3318 page size too, and remember both sizes. */
3319 if (coff_section_data (abfd, current) == NULL)
3321 bfd_size_type amt = sizeof (struct coff_section_tdata);
3323 current->used_by_bfd = bfd_zalloc (abfd, amt);
3324 if (current->used_by_bfd == NULL)
3327 if (pei_section_data (abfd, current) == NULL)
3329 bfd_size_type amt = sizeof (struct pei_section_tdata);
3331 coff_section_data (abfd, current)->tdata = bfd_zalloc (abfd, amt);
3332 if (coff_section_data (abfd, current)->tdata == NULL)
3335 if (pei_section_data (abfd, current)->virt_size == 0)
3336 pei_section_data (abfd, current)->virt_size = current->size;
3339 /* Only deal with sections which have contents. */
3340 if (!(current->flags & SEC_HAS_CONTENTS))
3343 current->rawsize = current->size;
3345 #ifdef COFF_IMAGE_WITH_PE
3346 /* Make sure we skip empty sections in a PE image. */
3347 if (current->size == 0)
3351 /* Align the sections in the file to the same boundary on
3352 which they are aligned in virtual memory. I960 doesn't
3353 do this (FIXME) so we can stay in sync with Intel. 960
3354 doesn't yet page from files... */
3355 #ifdef ALIGN_SECTIONS_IN_FILE
3356 if ((abfd->flags & EXEC_P) != 0)
3358 /* Make sure this section is aligned on the right boundary - by
3359 padding the previous section up if necessary. */
3363 /* AIX loader checks the text section alignment of (vma - filepos)
3364 So even though the filepos may be aligned wrt the o_algntext, for
3365 AIX executables, this check fails. This shows up when a native
3366 AIX executable is stripped with gnu strip because the default vma
3367 of native is 0x10000150 but default for gnu is 0x10000140. Gnu
3368 stripped gnu excutable passes this check because the filepos is
3369 0x0140. This problem also show up with 64 bit shared objects. The
3370 data section must also be aligned. */
3371 if (!strcmp (current->name, _TEXT)
3372 || !strcmp (current->name, _DATA))
3377 sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
3379 align = 1 << current->alignment_power;
3380 pad = abs (current->vma - sofar) % align;
3391 sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
3394 if (previous != NULL)
3395 previous->size += sofar - old_sofar;
3400 /* In demand paged files the low order bits of the file offset
3401 must match the low order bits of the virtual address. */
3402 #ifdef COFF_PAGE_SIZE
3403 if ((abfd->flags & D_PAGED) != 0
3404 && (current->flags & SEC_ALLOC) != 0)
3405 sofar += (current->vma - (bfd_vma) sofar) % page_size;
3407 current->filepos = sofar;
3409 #ifdef COFF_IMAGE_WITH_PE
3410 /* Set the padded size. */
3411 current->size = (current->size + page_size - 1) & -page_size;
3414 sofar += current->size;
3416 #ifdef ALIGN_SECTIONS_IN_FILE
3417 /* Make sure that this section is of the right size too. */
3418 if ((abfd->flags & EXEC_P) == 0)
3420 bfd_size_type old_size;
3422 old_size = current->size;
3423 current->size = BFD_ALIGN (current->size,
3424 1 << current->alignment_power);
3425 align_adjust = current->size != old_size;
3426 sofar += current->size - old_size;
3431 sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
3432 align_adjust = sofar != old_sofar;
3433 current->size += sofar - old_sofar;
3437 #ifdef COFF_IMAGE_WITH_PE
3438 /* For PE we need to make sure we pad out to the aligned
3439 size, in case the caller only writes out data to the
3441 if (pei_section_data (abfd, current)->virt_size < current->size)
3442 align_adjust = TRUE;
3446 /* Force .lib sections to start at zero. The vma is then
3447 incremented in coff_set_section_contents. This is right for
3449 if (strcmp (current->name, _LIB) == 0)
3450 bfd_set_section_vma (abfd, current, 0);
3453 #ifdef ALIGN_SECTIONS_IN_FILE
3458 /* It is now safe to write to the output file. If we needed an
3459 alignment adjustment for the last section, then make sure that
3460 there is a byte at offset sofar. If there are no symbols and no
3461 relocs, then nothing follows the last section. If we don't force
3462 the last byte out, then the file may appear to be truncated. */
3468 if (bfd_seek (abfd, sofar - 1, SEEK_SET) != 0
3469 || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1)
3473 /* Make sure the relocations are aligned. We don't need to make
3474 sure that this byte exists, because it will only matter if there
3475 really are relocs. */
3476 sofar = BFD_ALIGN (sofar, 1 << COFF_DEFAULT_SECTION_ALIGNMENT_POWER);
3478 obj_relocbase (abfd) = sofar;
3479 abfd->output_has_begun = TRUE;
3484 #ifdef COFF_IMAGE_WITH_PE
3486 static unsigned int pelength;
3487 static unsigned int peheader;
3490 coff_read_word (bfd *abfd, unsigned int *value)
3495 status = bfd_bread (b, (bfd_size_type) 2, abfd);
3503 *value = (unsigned int) b[0];
3505 *value = (unsigned int) (b[0] + (b[1] << 8));
3507 pelength += (unsigned int) status;
3513 coff_compute_checksum (bfd *abfd)
3515 bfd_boolean more_data;
3522 filepos = (file_ptr) 0;
3526 if (bfd_seek (abfd, filepos, SEEK_SET) != 0)
3529 more_data = coff_read_word (abfd, &value);
3531 total = 0xffff & (total + (total >> 0x10));
3536 return (0xffff & (total + (total >> 0x10)));
3540 coff_apply_checksum (bfd *abfd)
3542 unsigned int computed;
3543 unsigned int checksum = 0;
3545 if (bfd_seek (abfd, 0x3c, SEEK_SET) != 0)
3548 if (!coff_read_word (abfd, &peheader))
3551 if (bfd_seek (abfd, peheader + 0x58, SEEK_SET) != 0)
3555 bfd_bwrite (&checksum, (bfd_size_type) 4, abfd);
3557 if (bfd_seek (abfd, peheader, SEEK_SET) != 0)
3560 computed = coff_compute_checksum (abfd);
3562 checksum = computed + pelength;
3564 if (bfd_seek (abfd, peheader + 0x58, SEEK_SET) != 0)
3567 bfd_bwrite (&checksum, (bfd_size_type) 4, abfd);
3572 #endif /* COFF_IMAGE_WITH_PE */
3575 coff_write_object_contents (bfd * abfd)
3578 bfd_boolean hasrelocs = FALSE;
3579 bfd_boolean haslinno = FALSE;
3580 #ifdef COFF_IMAGE_WITH_PE
3581 bfd_boolean hasdebug = FALSE;
3584 file_ptr reloc_base;
3585 file_ptr lineno_base;
3587 unsigned long reloc_size = 0, reloc_count = 0;
3588 unsigned long lnno_size = 0;
3589 bfd_boolean long_section_names;
3590 asection *text_sec = NULL;
3591 asection *data_sec = NULL;
3592 asection *bss_sec = NULL;
3593 struct internal_filehdr internal_f;
3594 struct internal_aouthdr internal_a;
3595 #ifdef COFF_LONG_SECTION_NAMES
3596 size_t string_size = STRING_SIZE_SIZE;
3599 bfd_set_error (bfd_error_system_call);
3601 /* Make a pass through the symbol table to count line number entries and
3602 put them into the correct asections. */
3603 lnno_size = coff_count_linenumbers (abfd) * bfd_coff_linesz (abfd);
3605 if (! abfd->output_has_begun)
3607 if (! coff_compute_section_file_positions (abfd))
3611 reloc_base = obj_relocbase (abfd);
3613 /* Work out the size of the reloc and linno areas. */
3615 for (current = abfd->sections; current != NULL; current =
3619 /* We store the actual reloc count in the first reloc's addr. */
3620 if (obj_pe (abfd) && current->reloc_count >= 0xffff)
3623 reloc_count += current->reloc_count;
3626 reloc_size = reloc_count * bfd_coff_relsz (abfd);
3628 lineno_base = reloc_base + reloc_size;
3629 sym_base = lineno_base + lnno_size;
3631 /* Indicate in each section->line_filepos its actual file address. */
3632 for (current = abfd->sections; current != NULL; current =
3635 if (current->lineno_count)
3637 current->line_filepos = lineno_base;
3638 current->moving_line_filepos = lineno_base;
3639 lineno_base += current->lineno_count * bfd_coff_linesz (abfd);
3642 current->line_filepos = 0;
3644 if (current->reloc_count)
3646 current->rel_filepos = reloc_base;
3647 reloc_base += current->reloc_count * bfd_coff_relsz (abfd);
3649 /* Extra reloc to hold real count. */
3650 if (obj_pe (abfd) && current->reloc_count >= 0xffff)
3651 reloc_base += bfd_coff_relsz (abfd);
3655 current->rel_filepos = 0;
3658 /* Write section headers to the file. */
3659 internal_f.f_nscns = 0;
3661 if ((abfd->flags & EXEC_P) != 0)
3662 scn_base = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd);
3665 scn_base = bfd_coff_filhsz (abfd);
3668 if (xcoff_data (abfd)->full_aouthdr)
3669 scn_base += bfd_coff_aoutsz (abfd);
3671 scn_base += SMALL_AOUTSZ;
3676 if (bfd_seek (abfd, scn_base, SEEK_SET) != 0)
3679 long_section_names = FALSE;
3680 for (current = abfd->sections;
3682 current = current->next)
3684 struct internal_scnhdr section;
3685 #ifdef COFF_IMAGE_WITH_PE
3686 bfd_boolean is_reloc_section = FALSE;
3688 if (strcmp (current->name, DOT_RELOC) == 0)
3690 is_reloc_section = TRUE;
3692 pe_data (abfd)->has_reloc_section = 1;
3696 internal_f.f_nscns++;
3698 strncpy (section.s_name, current->name, SCNNMLEN);
3700 #ifdef COFF_LONG_SECTION_NAMES
3701 /* Handle long section names as in PE. This must be compatible
3702 with the code in coff_write_symbols and _bfd_coff_final_link. */
3703 if (bfd_coff_long_section_names (abfd))
3707 len = strlen (current->name);
3710 /* The s_name field is defined to be NUL-padded but need not be
3711 NUL-terminated. We use a temporary buffer so that we can still
3712 sprintf all eight chars without splatting a terminating NUL
3713 over the first byte of the following member (s_paddr). */
3714 char s_name_buf[SCNNMLEN + 1];
3716 /* An inherent limitation of the /nnnnnnn notation used to indicate
3717 the offset of the long name in the string table is that we
3718 cannot address entries beyone the ten million byte boundary. */
3719 if (string_size >= 10000000)
3721 bfd_set_error (bfd_error_file_too_big);
3722 (*_bfd_error_handler)
3723 (_("%B: section %s: string table overflow at offset %ld"),
3724 abfd, current->name, string_size);
3728 /* snprintf not strictly necessary now we've verified the value
3729 has less than eight ASCII digits, but never mind. */
3730 snprintf (s_name_buf, SCNNMLEN + 1, "/%lu", (unsigned long) string_size);
3731 /* Then strncpy takes care of any padding for us. */
3732 strncpy (section.s_name, s_name_buf, SCNNMLEN);
3733 string_size += len + 1;
3734 long_section_names = TRUE;
3740 /* Always set s_vaddr of .lib to 0. This is right for SVR3.2
3741 Ian Taylor <ian@cygnus.com>. */
3742 if (strcmp (current->name, _LIB) == 0)
3743 section.s_vaddr = 0;
3746 section.s_vaddr = current->vma;
3747 section.s_paddr = current->lma;
3748 section.s_size = current->size;
3749 #ifdef coff_get_section_load_page
3750 section.s_page = coff_get_section_load_page (current);
3756 section.s_paddr = 0;
3758 #ifdef COFF_IMAGE_WITH_PE
3759 /* Reminder: s_paddr holds the virtual size of the section. */
3760 if (coff_section_data (abfd, current) != NULL
3761 && pei_section_data (abfd, current) != NULL)
3762 section.s_paddr = pei_section_data (abfd, current)->virt_size;
3764 section.s_paddr = 0;
3767 /* If this section has no size or is unloadable then the scnptr
3769 if (current->size == 0
3770 || (current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
3771 section.s_scnptr = 0;
3773 section.s_scnptr = current->filepos;
3775 section.s_relptr = current->rel_filepos;
3776 section.s_lnnoptr = current->line_filepos;
3777 section.s_nreloc = current->reloc_count;
3778 section.s_nlnno = current->lineno_count;
3779 #ifndef COFF_IMAGE_WITH_PE
3780 /* In PEI, relocs come in the .reloc section. */
3781 if (current->reloc_count != 0)
3784 if (current->lineno_count != 0)
3786 #ifdef COFF_IMAGE_WITH_PE
3787 if ((current->flags & SEC_DEBUGGING) != 0
3788 && ! is_reloc_section)
3794 /* Indicate the use of an XCOFF overflow section header. */
3795 if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
3797 section.s_nreloc = 0xffff;
3798 section.s_nlnno = 0xffff;
3803 section.s_flags = sec_to_styp_flags (current->name, current->flags);
3805 if (!strcmp (current->name, _TEXT))
3807 else if (!strcmp (current->name, _DATA))
3809 else if (!strcmp (current->name, _BSS))
3813 section.s_align = (current->alignment_power
3814 ? 1 << current->alignment_power
3818 /* TI COFF puts the alignment power in bits 8-11 of the flags. */
3819 section.s_flags |= (current->alignment_power & 0xF) << 8;
3821 #ifdef COFF_ENCODE_ALIGNMENT
3822 COFF_ENCODE_ALIGNMENT(section, current->alignment_power);
3825 #ifdef COFF_IMAGE_WITH_PE
3826 /* Suppress output of the sections if they are null. ld
3827 includes the bss and data sections even if there is no size
3828 assigned to them. NT loader doesn't like it if these section
3829 headers are included if the sections themselves are not
3830 needed. See also coff_compute_section_file_positions. */
3831 if (section.s_size == 0)
3832 internal_f.f_nscns--;
3837 bfd_size_type amt = bfd_coff_scnhsz (abfd);
3839 if (coff_swap_scnhdr_out (abfd, §ion, &buff) == 0
3840 || bfd_bwrite (& buff, amt, abfd) != amt)
3845 /* PE stores COMDAT section information in the symbol table. If
3846 this section is supposed to have some COMDAT info, track down
3847 the symbol in the symbol table and modify it. */
3848 if ((current->flags & SEC_LINK_ONCE) != 0)
3850 unsigned int i, count;
3852 coff_symbol_type *csym = NULL;
3856 count = bfd_get_symcount (abfd);
3857 for (i = 0, psym = abfd->outsymbols; i < count; i++, psym++)
3859 if ((*psym)->section != current)
3862 /* Remember the location of the first symbol in this
3864 if (psymsec == NULL)
3867 /* See if this is the section symbol. */
3868 if (strcmp ((*psym)->name, current->name) == 0)
3870 csym = coff_symbol_from (abfd, *psym);
3872 || csym->native == NULL
3873 || csym->native->u.syment.n_numaux < 1
3874 || csym->native->u.syment.n_sclass != C_STAT
3875 || csym->native->u.syment.n_type != T_NULL)
3878 /* Here *PSYM is the section symbol for CURRENT. */
3885 Note that we might not if we're converting the file from
3886 some other object file format. */
3889 combined_entry_type *aux;
3891 /* We don't touch the x_checksum field. The
3892 x_associated field is not currently supported. */
3894 aux = csym->native + 1;
3895 switch (current->flags & SEC_LINK_DUPLICATES)
3897 case SEC_LINK_DUPLICATES_DISCARD:
3898 aux->u.auxent.x_scn.x_comdat = IMAGE_COMDAT_SELECT_ANY;
3901 case SEC_LINK_DUPLICATES_ONE_ONLY:
3902 aux->u.auxent.x_scn.x_comdat =
3903 IMAGE_COMDAT_SELECT_NODUPLICATES;
3906 case SEC_LINK_DUPLICATES_SAME_SIZE:
3907 aux->u.auxent.x_scn.x_comdat =
3908 IMAGE_COMDAT_SELECT_SAME_SIZE;
3911 case SEC_LINK_DUPLICATES_SAME_CONTENTS:
3912 aux->u.auxent.x_scn.x_comdat =
3913 IMAGE_COMDAT_SELECT_EXACT_MATCH;
3917 /* The COMDAT symbol must be the first symbol from this
3918 section in the symbol table. In order to make this
3919 work, we move the COMDAT symbol before the first
3920 symbol we found in the search above. It's OK to
3921 rearrange the symbol table at this point, because
3922 coff_renumber_symbols is going to rearrange it
3923 further and fix up all the aux entries. */
3924 if (psym != psymsec)
3930 for (pcopy = psym; pcopy > psymsec; pcopy--)
3931 pcopy[0] = pcopy[-1];
3936 #endif /* COFF_WITH_PE */
3941 /* XCOFF handles overflows in the reloc and line number count fields
3942 by creating a new section header to hold the correct values. */
3943 for (current = abfd->sections; current != NULL; current = current->next)
3945 if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
3947 struct internal_scnhdr scnhdr;
3951 internal_f.f_nscns++;
3952 strncpy (&(scnhdr.s_name[0]), current->name, 8);
3953 scnhdr.s_paddr = current->reloc_count;
3954 scnhdr.s_vaddr = current->lineno_count;
3956 scnhdr.s_scnptr = 0;
3957 scnhdr.s_relptr = current->rel_filepos;
3958 scnhdr.s_lnnoptr = current->line_filepos;
3959 scnhdr.s_nreloc = current->target_index;
3960 scnhdr.s_nlnno = current->target_index;
3961 scnhdr.s_flags = STYP_OVRFLO;
3962 amt = bfd_coff_scnhsz (abfd);
3963 if (coff_swap_scnhdr_out (abfd, &scnhdr, &buff) == 0
3964 || bfd_bwrite (& buff, amt, abfd) != amt)
3971 /* OK, now set up the filehdr... */
3973 /* Don't include the internal abs section in the section count */
3975 /* We will NOT put a fucking timestamp in the header here. Every time you
3976 put it back, I will come in and take it out again. I'm sorry. This
3977 field does not belong here. We fill it with a 0 so it compares the
3978 same but is not a reasonable time. -- gnu@cygnus.com */
3979 internal_f.f_timdat = 0;
3980 internal_f.f_flags = 0;
3982 if (abfd->flags & EXEC_P)
3983 internal_f.f_opthdr = bfd_coff_aoutsz (abfd);
3986 internal_f.f_opthdr = 0;
3989 if (xcoff_data (abfd)->full_aouthdr)
3990 internal_f.f_opthdr = bfd_coff_aoutsz (abfd);
3992 internal_f.f_opthdr = SMALL_AOUTSZ;
3998 internal_f.f_flags |= F_RELFLG;
4000 internal_f.f_flags |= F_LNNO;
4001 if (abfd->flags & EXEC_P)
4002 internal_f.f_flags |= F_EXEC;
4003 #ifdef COFF_IMAGE_WITH_PE
4005 internal_f.f_flags |= IMAGE_FILE_DEBUG_STRIPPED;
4006 if (pe_data (abfd)->real_flags & IMAGE_FILE_LARGE_ADDRESS_AWARE)
4007 internal_f.f_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE;
4010 #ifndef COFF_WITH_pex64
4012 internal_f.f_flags |= IMAGE_FILE_32BIT_MACHINE;
4014 if (bfd_little_endian (abfd))
4015 internal_f.f_flags |= F_AR32WR;
4017 internal_f.f_flags |= F_AR32W;
4022 /* Target id is used in TI COFF v1 and later; COFF0 won't use this field,
4023 but it doesn't hurt to set it internally. */
4024 internal_f.f_target_id = TI_TARGET_ID;
4026 #ifdef TIC80_TARGET_ID
4027 internal_f.f_target_id = TIC80_TARGET_ID;
4030 /* FIXME, should do something about the other byte orders and
4034 if ((abfd->flags & DYNAMIC) != 0)
4035 internal_f.f_flags |= F_SHROBJ;
4036 if (bfd_get_section_by_name (abfd, _LOADER) != NULL)
4037 internal_f.f_flags |= F_DYNLOAD;
4040 memset (&internal_a, 0, sizeof internal_a);
4042 /* Set up architecture-dependent stuff. */
4044 unsigned int magic = 0;
4045 unsigned short flags = 0;
4047 coff_set_flags (abfd, &magic, &flags);
4048 internal_f.f_magic = magic;
4049 internal_f.f_flags |= flags;
4050 /* ...and the "opt"hdr... */
4052 #ifdef TICOFF_AOUT_MAGIC
4053 internal_a.magic = TICOFF_AOUT_MAGIC;
4054 #define __A_MAGIC_SET__
4057 internal_a.magic = TIC80_ARCH_MAGIC;
4058 #define __A_MAGIC_SET__
4061 /* FIXME: What are the a.out magic numbers for the i860? */
4062 internal_a.magic = 0;
4063 #define __A_MAGIC_SET__
4066 internal_a.magic = (magic == I960ROMAGIC ? NMAGIC : OMAGIC);
4067 #define __A_MAGIC_SET__
4070 #define __A_MAGIC_SET__
4071 internal_a.magic = PAGEMAGICBCS;
4075 #define __A_MAGIC_SET__
4076 internal_a.magic = APOLLO_COFF_VERSION_NUMBER;
4079 #if defined(M68) || defined(WE32K) || defined(M68K)
4080 #define __A_MAGIC_SET__
4082 internal_a.magic = LYNXCOFFMAGIC;
4084 #if defined(TARG_AUX)
4085 internal_a.magic = (abfd->flags & D_PAGED ? PAGEMAGICPEXECPAGED :
4086 abfd->flags & WP_TEXT ? PAGEMAGICPEXECSWAPPED :
4087 PAGEMAGICEXECSWAPPED);
4089 #if defined (PAGEMAGICPEXECPAGED)
4090 internal_a.magic = PAGEMAGICPEXECPAGED;
4092 #endif /* TARG_AUX */
4094 #endif /* M68 || WE32K || M68K */
4097 #define __A_MAGIC_SET__
4098 internal_a.magic = ZMAGIC;
4102 #define __A_MAGIC_SET__
4103 internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC;
4106 #if defined MCORE_PE
4107 #define __A_MAGIC_SET__
4108 internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC;
4112 #define __A_MAGIC_SET__
4114 internal_a.magic = LYNXCOFFMAGIC;
4116 internal_a.magic = IMAGE_NT_OPTIONAL_HDR64_MAGIC;
4118 internal_a.magic = ZMAGIC;
4123 #define __A_MAGIC_SET__
4124 internal_a.magic = PE32PMAGIC;
4128 #define __A_MAGIC_SET__
4130 internal_a.magic = LYNXCOFFMAGIC;
4135 #define __A_MAGIC_SET__
4136 internal_a.magic = (abfd->flags & D_PAGED) ? RS6K_AOUTHDR_ZMAGIC :
4137 (abfd->flags & WP_TEXT) ? RS6K_AOUTHDR_NMAGIC :
4138 RS6K_AOUTHDR_OMAGIC;
4141 #if defined(SH) && defined(COFF_WITH_PE)
4142 #define __A_MAGIC_SET__
4143 internal_a.magic = SH_PE_MAGIC;
4146 #if defined(MIPS) && defined(COFF_WITH_PE)
4147 #define __A_MAGIC_SET__
4148 internal_a.magic = MIPS_PE_MAGIC;
4152 #define __A_MAGIC_SET__
4153 internal_a.magic = NMAGIC; /* Assume separate i/d. */
4156 #ifndef __A_MAGIC_SET__
4157 #include "Your aouthdr magic number is not being set!"
4159 #undef __A_MAGIC_SET__
4163 /* FIXME: Does anybody ever set this to another value? */
4164 internal_a.vstamp = 0;
4166 /* Now should write relocs, strings, syms. */
4167 obj_sym_filepos (abfd) = sym_base;
4169 if (bfd_get_symcount (abfd) != 0)
4173 if (!coff_renumber_symbols (abfd, &firstundef))
4175 coff_mangle_symbols (abfd);
4176 if (! coff_write_symbols (abfd))
4178 if (! coff_write_linenumbers (abfd))
4180 if (! coff_write_relocs (abfd, firstundef))
4183 #ifdef COFF_LONG_SECTION_NAMES
4184 else if (long_section_names && ! obj_coff_strings_written (abfd))
4186 /* If we have long section names we have to write out the string
4187 table even if there are no symbols. */
4188 if (! coff_write_symbols (abfd))
4192 #ifdef COFF_IMAGE_WITH_PE
4194 else if ((abfd->flags & EXEC_P) != 0)
4198 /* PowerPC PE appears to require that all executable files be
4199 rounded up to the page size. */
4202 (file_ptr) BFD_ALIGN (sym_base, COFF_PAGE_SIZE) - 1,
4204 || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1)
4210 /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF
4211 backend linker, and obj_raw_syment_count is not valid until after
4212 coff_write_symbols is called. */
4213 if (obj_raw_syment_count (abfd) != 0)
4215 internal_f.f_symptr = sym_base;
4217 /* AIX appears to require that F_RELFLG not be set if there are
4218 local symbols but no relocations. */
4219 internal_f.f_flags &=~ F_RELFLG;
4224 if (long_section_names)
4225 internal_f.f_symptr = sym_base;
4227 internal_f.f_symptr = 0;
4228 internal_f.f_flags |= F_LSYMS;
4233 internal_a.tsize = text_sec->size;
4234 internal_a.text_start = internal_a.tsize ? text_sec->vma : 0;
4238 internal_a.dsize = data_sec->size;
4239 internal_a.data_start = internal_a.dsize ? data_sec->vma : 0;
4243 internal_a.bsize = bss_sec->size;
4244 if (internal_a.bsize && bss_sec->vma < internal_a.data_start)
4245 internal_a.data_start = bss_sec->vma;
4248 internal_a.entry = bfd_get_start_address (abfd);
4249 internal_f.f_nsyms = obj_raw_syment_count (abfd);
4252 if (xcoff_data (abfd)->full_aouthdr)
4255 asection *loader_sec;
4257 internal_a.vstamp = 1;
4259 internal_a.o_snentry = xcoff_data (abfd)->snentry;
4260 if (internal_a.o_snentry == 0)
4261 internal_a.entry = (bfd_vma) -1;
4263 if (text_sec != NULL)
4265 internal_a.o_sntext = text_sec->target_index;
4266 internal_a.o_algntext = bfd_get_section_alignment (abfd, text_sec);
4270 internal_a.o_sntext = 0;
4271 internal_a.o_algntext = 0;
4273 if (data_sec != NULL)
4275 internal_a.o_sndata = data_sec->target_index;
4276 internal_a.o_algndata = bfd_get_section_alignment (abfd, data_sec);
4280 internal_a.o_sndata = 0;
4281 internal_a.o_algndata = 0;
4283 loader_sec = bfd_get_section_by_name (abfd, ".loader");
4284 if (loader_sec != NULL)
4285 internal_a.o_snloader = loader_sec->target_index;
4287 internal_a.o_snloader = 0;
4288 if (bss_sec != NULL)
4289 internal_a.o_snbss = bss_sec->target_index;
4291 internal_a.o_snbss = 0;
4293 toc = xcoff_data (abfd)->toc;
4294 internal_a.o_toc = toc;
4295 internal_a.o_sntoc = xcoff_data (abfd)->sntoc;
4297 internal_a.o_modtype = xcoff_data (abfd)->modtype;
4298 if (xcoff_data (abfd)->cputype != -1)
4299 internal_a.o_cputype = xcoff_data (abfd)->cputype;
4302 switch (bfd_get_arch (abfd))
4304 case bfd_arch_rs6000:
4305 internal_a.o_cputype = 4;
4307 case bfd_arch_powerpc:
4308 if (bfd_get_mach (abfd) == bfd_mach_ppc)
4309 internal_a.o_cputype = 3;
4311 internal_a.o_cputype = 1;
4317 internal_a.o_maxstack = xcoff_data (abfd)->maxstack;
4318 internal_a.o_maxdata = xcoff_data (abfd)->maxdata;
4322 /* Now write them. */
4323 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
4328 bfd_size_type amount = bfd_coff_filhsz (abfd);
4330 buff = (char *) bfd_malloc (amount);
4334 bfd_coff_swap_filehdr_out (abfd, & internal_f, buff);
4335 amount = bfd_bwrite (buff, amount, abfd);
4339 if (amount != bfd_coff_filhsz (abfd))
4343 if (abfd->flags & EXEC_P)
4345 /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR.
4346 include/coff/pe.h sets AOUTSZ == sizeof (PEAOUTHDR)). */
4348 bfd_size_type amount = bfd_coff_aoutsz (abfd);
4350 buff = (char *) bfd_malloc (amount);
4354 coff_swap_aouthdr_out (abfd, & internal_a, buff);
4355 amount = bfd_bwrite (buff, amount, abfd);
4359 if (amount != bfd_coff_aoutsz (abfd))
4362 #ifdef COFF_IMAGE_WITH_PE
4363 if (! coff_apply_checksum (abfd))
4373 /* XCOFF seems to always write at least a small a.out header. */
4374 coff_swap_aouthdr_out (abfd, & internal_a, & buff);
4375 if (xcoff_data (abfd)->full_aouthdr)
4376 size = bfd_coff_aoutsz (abfd);
4378 size = SMALL_AOUTSZ;
4379 if (bfd_bwrite (& buff, (bfd_size_type) size, abfd) != size)
4388 coff_set_section_contents (bfd * abfd,
4390 const void * location,
4392 bfd_size_type count)
4394 if (! abfd->output_has_begun) /* Set by bfd.c handler. */
4396 if (! coff_compute_section_file_positions (abfd))
4400 #if defined(_LIB) && !defined(TARG_AUX)
4401 /* The physical address field of a .lib section is used to hold the
4402 number of shared libraries in the section. This code counts the
4403 number of sections being written, and increments the lma field
4406 I have found no documentation on the contents of this section.
4407 Experimentation indicates that the section contains zero or more
4408 records, each of which has the following structure:
4410 - a (four byte) word holding the length of this record, in words,
4411 - a word that always seems to be set to "2",
4412 - the path to a shared library, null-terminated and then padded
4413 to a whole word boundary.
4415 bfd_assert calls have been added to alert if an attempt is made
4416 to write a section which doesn't follow these assumptions. The
4417 code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe
4418 <robertl@arnet.com> (Thanks!).
4420 Gvran Uddeborg <gvran@uddeborg.pp.se>. */
4421 if (strcmp (section->name, _LIB) == 0)
4423 bfd_byte *rec, *recend;
4425 rec = (bfd_byte *) location;
4426 recend = rec + count;
4427 while (rec < recend)
4430 rec += bfd_get_32 (abfd, rec) * 4;
4433 BFD_ASSERT (rec == recend);
4437 /* Don't write out bss sections - one way to do this is to
4438 see if the filepos has not been set. */
4439 if (section->filepos == 0)
4442 if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0)
4448 return bfd_bwrite (location, count, abfd) == count;
4452 buy_and_read (bfd *abfd, file_ptr where, bfd_size_type size)
4454 void * area = bfd_alloc (abfd, size);
4458 if (bfd_seek (abfd, where, SEEK_SET) != 0
4459 || bfd_bread (area, size, abfd) != size)
4468 Creating the linenumber table is done by reading in the entire
4469 coff linenumber table, and creating another table for internal use.
4471 A coff linenumber table is structured so that each function
4472 is marked as having a line number of 0. Each line within the
4473 function is an offset from the first line in the function. The
4474 base of the line number information for the table is stored in
4475 the symbol associated with the function.
4477 Note: The PE format uses line number 0 for a flag indicating a
4480 The information is copied from the external to the internal
4481 table, and each symbol which marks a function is marked by
4484 How does this work ?
4488 coff_sort_func_alent (const void * arg1, const void * arg2)
4490 const alent *al1 = *(const alent **) arg1;
4491 const alent *al2 = *(const alent **) arg2;
4492 const coff_symbol_type *s1 = (const coff_symbol_type *) (al1->u.sym);
4493 const coff_symbol_type *s2 = (const coff_symbol_type *) (al2->u.sym);
4495 if (s1->symbol.value < s2->symbol.value)
4497 else if (s1->symbol.value > s2->symbol.value)
4504 coff_slurp_line_table (bfd *abfd, asection *asect)
4506 LINENO *native_lineno;
4507 alent *lineno_cache;
4509 unsigned int counter;
4511 bfd_vma prev_offset = 0;
4513 unsigned int nbr_func;
4516 BFD_ASSERT (asect->lineno == NULL);
4518 amt = ((bfd_size_type) asect->lineno_count + 1) * sizeof (alent);
4519 lineno_cache = (alent *) bfd_alloc (abfd, amt);
4520 if (lineno_cache == NULL)
4523 amt = (bfd_size_type) bfd_coff_linesz (abfd) * asect->lineno_count;
4524 native_lineno = (LINENO *) buy_and_read (abfd, asect->line_filepos, amt);
4525 if (native_lineno == NULL)
4527 (*_bfd_error_handler)
4528 (_("%B: warning: line number table read failed"), abfd);
4529 bfd_release (abfd, lineno_cache);
4533 cache_ptr = lineno_cache;
4534 asect->lineno = lineno_cache;
4535 src = native_lineno;
4538 for (counter = 0; counter < asect->lineno_count; counter++)
4540 struct internal_lineno dst;
4542 bfd_coff_swap_lineno_in (abfd, src, &dst);
4543 cache_ptr->line_number = dst.l_lnno;
4545 if (cache_ptr->line_number == 0)
4548 bfd_signed_vma symndx;
4549 coff_symbol_type *sym;
4553 symndx = dst.l_addr.l_symndx;
4555 || (bfd_vma) symndx >= obj_raw_syment_count (abfd))
4557 (*_bfd_error_handler)
4558 (_("%B: warning: illegal symbol index %ld in line numbers"),
4559 abfd, (long) symndx);
4564 /* FIXME: We should not be casting between ints and
4565 pointers like this. */
4566 sym = ((coff_symbol_type *)
4567 ((symndx + obj_raw_syments (abfd))
4568 ->u.syment._n._n_n._n_zeroes));
4569 cache_ptr->u.sym = (asymbol *) sym;
4570 if (sym->lineno != NULL && ! warned)
4571 (*_bfd_error_handler)
4572 (_("%B: warning: duplicate line number information for `%s'"),
4573 abfd, bfd_asymbol_name (&sym->symbol));
4575 sym->lineno = cache_ptr;
4576 if (sym->symbol.value < prev_offset)
4578 prev_offset = sym->symbol.value;
4581 cache_ptr->u.offset = dst.l_addr.l_paddr
4582 - bfd_section_vma (abfd, asect);
4587 cache_ptr->line_number = 0;
4588 bfd_release (abfd, native_lineno);
4590 /* On some systems (eg AIX5.3) the lineno table may not be sorted. */
4593 /* Sort the table. */
4595 alent *n_lineno_cache;
4597 /* Create a table of functions. */
4598 func_table = (alent **) bfd_alloc (abfd, nbr_func * sizeof (alent *));
4599 if (func_table != NULL)
4601 alent **p = func_table;
4604 for (i = 0; i < counter; i++)
4605 if (lineno_cache[i].line_number == 0)
4606 *p++ = &lineno_cache[i];
4608 /* Sort by functions. */
4609 qsort (func_table, nbr_func, sizeof (alent *), coff_sort_func_alent);
4611 /* Create the new sorted table. */
4612 amt = ((bfd_size_type) asect->lineno_count + 1) * sizeof (alent);
4613 n_lineno_cache = (alent *) bfd_alloc (abfd, amt);
4614 if (n_lineno_cache != NULL)
4616 alent *n_cache_ptr = n_lineno_cache;
4618 for (i = 0; i < nbr_func; i++)
4620 coff_symbol_type *sym;
4621 alent *old_ptr = func_table[i];
4623 /* Copy the function entry and update it. */
4624 *n_cache_ptr = *old_ptr;
4625 sym = (coff_symbol_type *)n_cache_ptr->u.sym;
4626 sym->lineno = n_cache_ptr;
4630 /* Copy the line number entries. */
4631 while (old_ptr->line_number != 0)
4632 *n_cache_ptr++ = *old_ptr++;
4634 n_cache_ptr->line_number = 0;
4635 memcpy (lineno_cache, n_lineno_cache, amt);
4637 bfd_release (abfd, func_table);
4644 /* Slurp in the symbol table, converting it to generic form. Note
4645 that if coff_relocate_section is defined, the linker will read
4646 symbols via coff_link_add_symbols, rather than via this routine. */
4649 coff_slurp_symbol_table (bfd * abfd)
4651 combined_entry_type *native_symbols;
4652 coff_symbol_type *cached_area;
4653 unsigned int *table_ptr;
4655 unsigned int number_of_symbols = 0;
4657 if (obj_symbols (abfd))
4660 /* Read in the symbol table. */
4661 if ((native_symbols = coff_get_normalized_symtab (abfd)) == NULL)
4664 /* Allocate enough room for all the symbols in cached form. */
4665 amt = obj_raw_syment_count (abfd);
4666 amt *= sizeof (coff_symbol_type);
4667 cached_area = (coff_symbol_type *) bfd_alloc (abfd, amt);
4668 if (cached_area == NULL)
4671 amt = obj_raw_syment_count (abfd);
4672 amt *= sizeof (unsigned int);
4673 table_ptr = (unsigned int *) bfd_alloc (abfd, amt);
4675 if (table_ptr == NULL)
4679 coff_symbol_type *dst = cached_area;
4680 unsigned int last_native_index = obj_raw_syment_count (abfd);
4681 unsigned int this_index = 0;
4683 while (this_index < last_native_index)
4685 combined_entry_type *src = native_symbols + this_index;
4686 table_ptr[this_index] = number_of_symbols;
4687 dst->symbol.the_bfd = abfd;
4689 dst->symbol.name = (char *) (src->u.syment._n._n_n._n_offset);
4690 /* We use the native name field to point to the cached field. */
4691 src->u.syment._n._n_n._n_zeroes = (bfd_hostptr_t) dst;
4692 dst->symbol.section = coff_section_from_bfd_index (abfd,
4693 src->u.syment.n_scnum);
4694 dst->symbol.flags = 0;
4695 dst->done_lineno = FALSE;
4697 switch (src->u.syment.n_sclass)
4701 /* Fall through to next case. */
4708 case C_THUMBEXTFUNC:
4714 case C_SYSTEM: /* System Wide variable. */
4717 /* In PE, 0x68 (104) denotes a section symbol. */
4719 /* In PE, 0x69 (105) denotes a weak external symbol. */
4722 switch (coff_classify_symbol (abfd, &src->u.syment))
4724 case COFF_SYMBOL_GLOBAL:
4725 dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL;
4726 #if defined COFF_WITH_PE
4727 /* PE sets the symbol to a value relative to the
4728 start of the section. */
4729 dst->symbol.value = src->u.syment.n_value;
4731 dst->symbol.value = (src->u.syment.n_value
4732 - dst->symbol.section->vma);
4734 if (ISFCN ((src->u.syment.n_type)))
4735 /* A function ext does not go at the end of a
4737 dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION;
4740 case COFF_SYMBOL_COMMON:
4741 dst->symbol.section = bfd_com_section_ptr;
4742 dst->symbol.value = src->u.syment.n_value;
4745 case COFF_SYMBOL_UNDEFINED:
4746 dst->symbol.section = bfd_und_section_ptr;
4747 dst->symbol.value = 0;
4750 case COFF_SYMBOL_PE_SECTION:
4751 dst->symbol.flags |= BSF_EXPORT | BSF_SECTION_SYM;
4752 dst->symbol.value = 0;
4755 case COFF_SYMBOL_LOCAL:
4756 dst->symbol.flags = BSF_LOCAL;
4757 #if defined COFF_WITH_PE
4758 /* PE sets the symbol to a value relative to the
4759 start of the section. */
4760 dst->symbol.value = src->u.syment.n_value;
4762 dst->symbol.value = (src->u.syment.n_value
4763 - dst->symbol.section->vma);
4765 if (ISFCN ((src->u.syment.n_type)))
4766 dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION;
4771 /* A symbol with a csect entry should not go at the end. */
4772 if (src->u.syment.n_numaux > 0)
4773 dst->symbol.flags |= BSF_NOT_AT_END;
4777 if (src->u.syment.n_sclass == C_NT_WEAK)
4778 dst->symbol.flags |= BSF_WEAK;
4780 if (src->u.syment.n_sclass == C_SECTION
4781 && src->u.syment.n_scnum > 0)
4782 dst->symbol.flags = BSF_LOCAL;
4784 if (src->u.syment.n_sclass == C_WEAKEXT)
4785 dst->symbol.flags |= BSF_WEAK;
4789 case C_STAT: /* Static. */
4791 case C_LEAFSTAT: /* Static leaf procedure. */
4794 case C_THUMBSTAT: /* Thumb static. */
4795 case C_THUMBLABEL: /* Thumb label. */
4796 case C_THUMBSTATFUNC:/* Thumb static function. */
4799 case C_DWARF: /* A label in a dwarf section. */
4800 case C_INFO: /* A label in a comment section. */
4802 case C_LABEL: /* Label. */
4803 if (src->u.syment.n_scnum == N_DEBUG)
4804 dst->symbol.flags = BSF_DEBUGGING;
4806 dst->symbol.flags = BSF_LOCAL;
4808 /* Base the value as an index from the base of the
4809 section, if there is one. */
4810 if (dst->symbol.section)
4812 #if defined COFF_WITH_PE
4813 /* PE sets the symbol to a value relative to the
4814 start of the section. */
4815 dst->symbol.value = src->u.syment.n_value;
4817 dst->symbol.value = (src->u.syment.n_value
4818 - dst->symbol.section->vma);
4822 dst->symbol.value = src->u.syment.n_value;
4825 case C_MOS: /* Member of structure. */
4826 case C_EOS: /* End of structure. */
4827 case C_REGPARM: /* Register parameter. */
4828 case C_REG: /* register variable. */
4829 /* C_AUTOARG conflicts with TI COFF C_UEXT. */
4830 #if !defined (TIC80COFF) && !defined (TICOFF)
4832 case C_AUTOARG: /* 960-specific storage class. */
4835 case C_TPDEF: /* Type definition. */
4837 case C_AUTO: /* Automatic variable. */
4838 case C_FIELD: /* Bit field. */
4839 case C_ENTAG: /* Enumeration tag. */
4840 case C_MOE: /* Member of enumeration. */
4841 case C_MOU: /* Member of union. */
4842 case C_UNTAG: /* Union tag. */
4843 dst->symbol.flags = BSF_DEBUGGING;
4844 dst->symbol.value = (src->u.syment.n_value);
4847 case C_FILE: /* File name. */
4848 case C_STRTAG: /* Structure tag. */
4865 dst->symbol.flags = BSF_DEBUGGING;
4866 dst->symbol.value = (src->u.syment.n_value);
4870 case C_BINCL: /* Beginning of include file. */
4871 case C_EINCL: /* Ending of include file. */
4872 /* The value is actually a pointer into the line numbers
4873 of the file. We locate the line number entry, and
4874 set the section to the section which contains it, and
4875 the value to the index in that section. */
4879 dst->symbol.flags = BSF_DEBUGGING;
4880 for (sec = abfd->sections; sec != NULL; sec = sec->next)
4881 if (sec->line_filepos <= (file_ptr) src->u.syment.n_value
4882 && ((file_ptr) (sec->line_filepos
4883 + sec->lineno_count * bfd_coff_linesz (abfd))
4884 > (file_ptr) src->u.syment.n_value))
4887 dst->symbol.value = 0;
4890 dst->symbol.section = sec;
4891 dst->symbol.value = ((src->u.syment.n_value
4892 - sec->line_filepos)
4893 / bfd_coff_linesz (abfd));
4900 dst->symbol.flags = BSF_DEBUGGING;
4902 /* The value is actually a symbol index. Save a pointer
4903 to the symbol instead of the index. FIXME: This
4904 should use a union. */
4905 src->u.syment.n_value =
4906 (long) (intptr_t) (native_symbols + src->u.syment.n_value);
4907 dst->symbol.value = src->u.syment.n_value;
4912 case C_BLOCK: /* ".bb" or ".eb". */
4913 case C_FCN: /* ".bf" or ".ef" (or PE ".lf"). */
4914 case C_EFCN: /* Physical end of function. */
4915 #if defined COFF_WITH_PE
4916 /* PE sets the symbol to a value relative to the start
4918 dst->symbol.value = src->u.syment.n_value;
4919 if (strcmp (dst->symbol.name, ".bf") != 0)
4921 /* PE uses funny values for .ef and .lf; don't
4923 dst->symbol.flags = BSF_DEBUGGING;
4926 dst->symbol.flags = BSF_DEBUGGING | BSF_DEBUGGING_RELOC;
4928 /* Base the value as an index from the base of the
4930 dst->symbol.flags = BSF_LOCAL;
4931 dst->symbol.value = (src->u.syment.n_value
4932 - dst->symbol.section->vma);
4936 case C_STATLAB: /* Static load time label. */
4937 dst->symbol.value = src->u.syment.n_value;
4938 dst->symbol.flags = BSF_GLOBAL;
4942 /* PE DLLs sometimes have zeroed out symbols for some
4943 reason. Just ignore them without a warning. */
4944 if (src->u.syment.n_type == 0
4945 && src->u.syment.n_value == 0
4946 && src->u.syment.n_scnum == 0)
4949 /* XCOFF specific: deleted entry. */
4950 if (src->u.syment.n_value == C_NULL_VALUE)
4954 case C_EXTDEF: /* External definition. */
4955 case C_ULABEL: /* Undefined label. */
4956 case C_USTATIC: /* Undefined static. */
4957 #ifndef COFF_WITH_PE
4958 /* C_LINE in regular coff is 0x68. NT has taken over this storage
4959 class to represent a section symbol. */
4960 case C_LINE: /* line # reformatted as symbol table entry. */
4961 /* NT uses 0x67 for a weak symbol, not C_ALIAS. */
4962 case C_ALIAS: /* Duplicate tag. */
4964 /* New storage classes for TI COFF. */
4965 #if defined(TIC80COFF) || defined(TICOFF)
4966 case C_UEXT: /* Tentative external definition. */
4968 case C_EXTLAB: /* External load time label. */
4969 case C_HIDDEN: /* Ext symbol in dmert public lib. */
4971 (*_bfd_error_handler)
4972 (_("%B: Unrecognized storage class %d for %s symbol `%s'"),
4973 abfd, src->u.syment.n_sclass,
4974 dst->symbol.section->name, dst->symbol.name);
4975 dst->symbol.flags = BSF_DEBUGGING;
4976 dst->symbol.value = (src->u.syment.n_value);
4982 dst->symbol.udata.i = 0;
4984 this_index += (src->u.syment.n_numaux) + 1;
4986 number_of_symbols++;
4990 obj_symbols (abfd) = cached_area;
4991 obj_raw_syments (abfd) = native_symbols;
4993 bfd_get_symcount (abfd) = number_of_symbols;
4994 obj_convert (abfd) = table_ptr;
4995 /* Slurp the line tables for each section too. */
5002 coff_slurp_line_table (abfd, p);
5010 /* Classify a COFF symbol. A couple of targets have globally visible
5011 symbols which are not class C_EXT, and this handles those. It also
5012 recognizes some special PE cases. */
5014 static enum coff_symbol_classification
5015 coff_classify_symbol (bfd *abfd,
5016 struct internal_syment *syment)
5018 /* FIXME: This partially duplicates the switch in
5019 coff_slurp_symbol_table. */
5020 switch (syment->n_sclass)
5029 case C_THUMBEXTFUNC:
5037 if (syment->n_scnum == 0)
5039 if (syment->n_value == 0)
5040 return COFF_SYMBOL_UNDEFINED;
5042 return COFF_SYMBOL_COMMON;
5044 return COFF_SYMBOL_GLOBAL;
5051 if (syment->n_sclass == C_STAT)
5053 if (syment->n_scnum == 0)
5054 /* The Microsoft compiler sometimes generates these if a
5055 small static function is inlined every time it is used.
5056 The function is discarded, but the symbol table entry
5058 return COFF_SYMBOL_LOCAL;
5060 #ifdef STRICT_PE_FORMAT
5061 /* This is correct for Microsoft generated objects, but it
5062 breaks gas generated objects. */
5063 if (syment->n_value == 0)
5066 char buf[SYMNMLEN + 1];
5068 sec = coff_section_from_bfd_index (abfd, syment->n_scnum);
5070 && (strcmp (bfd_get_section_name (abfd, sec),
5071 _bfd_coff_internal_syment_name (abfd, syment, buf))
5073 return COFF_SYMBOL_PE_SECTION;
5077 return COFF_SYMBOL_LOCAL;
5080 if (syment->n_sclass == C_SECTION)
5082 /* In some cases in a DLL generated by the Microsoft linker, the
5083 n_value field will contain garbage. FIXME: This should
5084 probably be handled by the swapping function instead. */
5085 syment->n_value = 0;
5086 if (syment->n_scnum == 0)
5087 return COFF_SYMBOL_UNDEFINED;
5088 return COFF_SYMBOL_PE_SECTION;
5090 #endif /* COFF_WITH_PE */
5092 /* If it is not a global symbol, we presume it is a local symbol. */
5093 if (syment->n_scnum == 0)
5095 char buf[SYMNMLEN + 1];
5097 (*_bfd_error_handler)
5098 (_("warning: %B: local symbol `%s' has no section"),
5099 abfd, _bfd_coff_internal_syment_name (abfd, syment, buf));
5102 return COFF_SYMBOL_LOCAL;
5109 Coff relocations are easily transformed into the internal BFD form
5112 Reading a coff relocation table is done in the following stages:
5114 o Read the entire coff relocation table into memory.
5116 o Process each relocation in turn; first swap it from the
5117 external to the internal form.
5119 o Turn the symbol referenced in the relocation's symbol index
5120 into a pointer into the canonical symbol table.
5121 This table is the same as the one returned by a call to
5122 @code{bfd_canonicalize_symtab}. The back end will call that
5123 routine and save the result if a canonicalization hasn't been done.
5125 o The reloc index is turned into a pointer to a howto
5126 structure, in a back end specific way. For instance, the 386
5127 and 960 use the @code{r_type} to directly produce an index
5128 into a howto table vector; the 88k subtracts a number from the
5129 @code{r_type} field and creates an addend field.
5133 #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
5135 coff_symbol_type *coffsym = NULL; \
5137 if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
5138 coffsym = (obj_symbols (abfd) \
5139 + (cache_ptr->sym_ptr_ptr - symbols)); \
5141 coffsym = coff_symbol_from (abfd, ptr); \
5142 if (coffsym != NULL \
5143 && coffsym->native->u.syment.n_scnum == 0) \
5144 cache_ptr->addend = 0; \
5145 else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
5146 && ptr->section != NULL) \
5147 cache_ptr->addend = - (ptr->section->vma + ptr->value); \
5149 cache_ptr->addend = 0; \
5154 coff_slurp_reloc_table (bfd * abfd, sec_ptr asect, asymbol ** symbols)
5156 RELOC *native_relocs;
5157 arelent *reloc_cache;
5162 if (asect->relocation)
5164 if (asect->reloc_count == 0)
5166 if (asect->flags & SEC_CONSTRUCTOR)
5168 if (!coff_slurp_symbol_table (abfd))
5171 amt = (bfd_size_type) bfd_coff_relsz (abfd) * asect->reloc_count;
5172 native_relocs = (RELOC *) buy_and_read (abfd, asect->rel_filepos, amt);
5173 amt = (bfd_size_type) asect->reloc_count * sizeof (arelent);
5174 reloc_cache = (arelent *) bfd_alloc (abfd, amt);
5176 if (reloc_cache == NULL || native_relocs == NULL)
5179 for (idx = 0; idx < asect->reloc_count; idx++)
5181 struct internal_reloc dst;
5182 struct external_reloc *src;
5183 #ifndef RELOC_PROCESSING
5187 cache_ptr = reloc_cache + idx;
5188 src = native_relocs + idx;
5191 coff_swap_reloc_in (abfd, src, &dst);
5193 #ifdef RELOC_PROCESSING
5194 RELOC_PROCESSING (cache_ptr, &dst, symbols, abfd, asect);
5196 cache_ptr->address = dst.r_vaddr;
5198 if (dst.r_symndx != -1)
5200 if (dst.r_symndx < 0 || dst.r_symndx >= obj_conv_table_size (abfd))
5202 (*_bfd_error_handler)
5203 (_("%B: warning: illegal symbol index %ld in relocs"),
5204 abfd, (long) dst.r_symndx);
5205 cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
5210 cache_ptr->sym_ptr_ptr = (symbols
5211 + obj_convert (abfd)[dst.r_symndx]);
5212 ptr = *(cache_ptr->sym_ptr_ptr);
5217 cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
5221 /* The symbols definitions that we have read in have been
5222 relocated as if their sections started at 0. But the offsets
5223 refering to the symbols in the raw data have not been
5224 modified, so we have to have a negative addend to compensate.
5226 Note that symbols which used to be common must be left alone. */
5228 /* Calculate any reloc addend by looking at the symbol. */
5229 CALC_ADDEND (abfd, ptr, dst, cache_ptr);
5232 cache_ptr->address -= asect->vma;
5233 /* !! cache_ptr->section = NULL;*/
5235 /* Fill in the cache_ptr->howto field from dst.r_type. */
5236 RTYPE2HOWTO (cache_ptr, &dst);
5237 #endif /* RELOC_PROCESSING */
5239 if (cache_ptr->howto == NULL)
5241 (*_bfd_error_handler)
5242 (_("%B: illegal relocation type %d at address 0x%lx"),
5243 abfd, dst.r_type, (long) dst.r_vaddr);
5244 bfd_set_error (bfd_error_bad_value);
5249 asect->relocation = reloc_cache;
5253 #ifndef coff_rtype_to_howto
5256 /* Get the howto structure for a reloc. This is only used if the file
5257 including this one defines coff_relocate_section to be
5258 _bfd_coff_generic_relocate_section, so it is OK if it does not
5259 always work. It is the responsibility of the including file to
5260 make sure it is reasonable if it is needed. */
5262 static reloc_howto_type *
5263 coff_rtype_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
5264 asection *sec ATTRIBUTE_UNUSED,
5265 struct internal_reloc *rel,
5266 struct coff_link_hash_entry *h ATTRIBUTE_UNUSED,
5267 struct internal_syment *sym ATTRIBUTE_UNUSED,
5268 bfd_vma *addendp ATTRIBUTE_UNUSED)
5272 genrel.howto = NULL;
5273 RTYPE2HOWTO (&genrel, rel);
5274 return genrel.howto;
5277 #else /* ! defined (RTYPE2HOWTO) */
5279 #define coff_rtype_to_howto NULL
5281 #endif /* ! defined (RTYPE2HOWTO) */
5282 #endif /* ! defined (coff_rtype_to_howto) */
5284 /* This is stupid. This function should be a boolean predicate. */
5287 coff_canonicalize_reloc (bfd * abfd,
5292 arelent *tblptr = section->relocation;
5293 unsigned int count = 0;
5295 if (section->flags & SEC_CONSTRUCTOR)
5297 /* This section has relocs made up by us, they are not in the
5298 file, so take them out of their chain and place them into
5299 the data area provided. */
5300 arelent_chain *chain = section->constructor_chain;
5302 for (count = 0; count < section->reloc_count; count++)
5304 *relptr++ = &chain->relent;
5305 chain = chain->next;
5310 if (! coff_slurp_reloc_table (abfd, section, symbols))
5313 tblptr = section->relocation;
5315 for (; count++ < section->reloc_count;)
5316 *relptr++ = tblptr++;
5319 return section->reloc_count;
5322 #ifndef coff_reloc16_estimate
5323 #define coff_reloc16_estimate dummy_reloc16_estimate
5326 dummy_reloc16_estimate (bfd *abfd ATTRIBUTE_UNUSED,
5327 asection *input_section ATTRIBUTE_UNUSED,
5328 arelent *reloc ATTRIBUTE_UNUSED,
5329 unsigned int shrink ATTRIBUTE_UNUSED,
5330 struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
5338 #ifndef coff_reloc16_extra_cases
5340 #define coff_reloc16_extra_cases dummy_reloc16_extra_cases
5342 /* This works even if abort is not declared in any header file. */
5345 dummy_reloc16_extra_cases (bfd *abfd ATTRIBUTE_UNUSED,
5346 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
5347 struct bfd_link_order *link_order ATTRIBUTE_UNUSED,
5348 arelent *reloc ATTRIBUTE_UNUSED,
5349 bfd_byte *data ATTRIBUTE_UNUSED,
5350 unsigned int *src_ptr ATTRIBUTE_UNUSED,
5351 unsigned int *dst_ptr ATTRIBUTE_UNUSED)
5357 #ifndef coff_bfd_link_hash_table_free
5358 #define coff_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
5361 /* If coff_relocate_section is defined, we can use the optimized COFF
5362 backend linker. Otherwise we must continue to use the old linker. */
5364 #ifdef coff_relocate_section
5366 #ifndef coff_bfd_link_hash_table_create
5367 #define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create
5369 #ifndef coff_bfd_link_add_symbols
5370 #define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols
5372 #ifndef coff_bfd_final_link
5373 #define coff_bfd_final_link _bfd_coff_final_link
5376 #else /* ! defined (coff_relocate_section) */
5378 #define coff_relocate_section NULL
5379 #ifndef coff_bfd_link_hash_table_create
5380 #define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
5382 #ifndef coff_bfd_link_add_symbols
5383 #define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols
5385 #define coff_bfd_final_link _bfd_generic_final_link
5387 #endif /* ! defined (coff_relocate_section) */
5389 #define coff_bfd_link_just_syms _bfd_generic_link_just_syms
5390 #define coff_bfd_copy_link_hash_symbol_type \
5391 _bfd_generic_copy_link_hash_symbol_type
5392 #define coff_bfd_link_split_section _bfd_generic_link_split_section
5394 #ifndef coff_start_final_link
5395 #define coff_start_final_link NULL
5398 #ifndef coff_adjust_symndx
5399 #define coff_adjust_symndx NULL
5402 #ifndef coff_link_add_one_symbol
5403 #define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol
5406 #ifndef coff_link_output_has_begun
5409 coff_link_output_has_begun (bfd * abfd,
5410 struct coff_final_link_info * info ATTRIBUTE_UNUSED)
5412 return abfd->output_has_begun;
5416 #ifndef coff_final_link_postscript
5419 coff_final_link_postscript (bfd * abfd ATTRIBUTE_UNUSED,
5420 struct coff_final_link_info * pfinfo ATTRIBUTE_UNUSED)
5426 #ifndef coff_SWAP_aux_in
5427 #define coff_SWAP_aux_in coff_swap_aux_in
5429 #ifndef coff_SWAP_sym_in
5430 #define coff_SWAP_sym_in coff_swap_sym_in
5432 #ifndef coff_SWAP_lineno_in
5433 #define coff_SWAP_lineno_in coff_swap_lineno_in
5435 #ifndef coff_SWAP_aux_out
5436 #define coff_SWAP_aux_out coff_swap_aux_out
5438 #ifndef coff_SWAP_sym_out
5439 #define coff_SWAP_sym_out coff_swap_sym_out
5441 #ifndef coff_SWAP_lineno_out
5442 #define coff_SWAP_lineno_out coff_swap_lineno_out
5444 #ifndef coff_SWAP_reloc_out
5445 #define coff_SWAP_reloc_out coff_swap_reloc_out
5447 #ifndef coff_SWAP_filehdr_out
5448 #define coff_SWAP_filehdr_out coff_swap_filehdr_out
5450 #ifndef coff_SWAP_aouthdr_out
5451 #define coff_SWAP_aouthdr_out coff_swap_aouthdr_out
5453 #ifndef coff_SWAP_scnhdr_out
5454 #define coff_SWAP_scnhdr_out coff_swap_scnhdr_out
5456 #ifndef coff_SWAP_reloc_in
5457 #define coff_SWAP_reloc_in coff_swap_reloc_in
5459 #ifndef coff_SWAP_filehdr_in
5460 #define coff_SWAP_filehdr_in coff_swap_filehdr_in
5462 #ifndef coff_SWAP_aouthdr_in
5463 #define coff_SWAP_aouthdr_in coff_swap_aouthdr_in
5465 #ifndef coff_SWAP_scnhdr_in
5466 #define coff_SWAP_scnhdr_in coff_swap_scnhdr_in
5469 static bfd_coff_backend_data bfd_coff_std_swap_table ATTRIBUTE_UNUSED =
5471 coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in,
5472 coff_SWAP_aux_out, coff_SWAP_sym_out,
5473 coff_SWAP_lineno_out, coff_SWAP_reloc_out,
5474 coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out,
5475 coff_SWAP_scnhdr_out,
5476 FILHSZ, AOUTSZ, SCNHSZ, SYMESZ, AUXESZ, RELSZ, LINESZ, FILNMLEN,
5477 #ifdef COFF_LONG_FILENAMES
5482 COFF_DEFAULT_LONG_SECTION_NAMES,
5483 COFF_DEFAULT_SECTION_ALIGNMENT_POWER,
5484 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5489 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5494 coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in,
5495 coff_SWAP_reloc_in, coff_bad_format_hook, coff_set_arch_mach_hook,
5496 coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook,
5497 coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook,
5498 coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate,
5499 coff_classify_symbol, coff_compute_section_file_positions,
5500 coff_start_final_link, coff_relocate_section, coff_rtype_to_howto,
5501 coff_adjust_symndx, coff_link_add_one_symbol,
5502 coff_link_output_has_begun, coff_final_link_postscript,
5507 /* COFF0 differs in file/section header size and relocation entry size. */
5509 static bfd_coff_backend_data ticoff0_swap_table =
5511 coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in,
5512 coff_SWAP_aux_out, coff_SWAP_sym_out,
5513 coff_SWAP_lineno_out, coff_SWAP_reloc_out,
5514 coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out,
5515 coff_SWAP_scnhdr_out,
5516 FILHSZ_V0, AOUTSZ, SCNHSZ_V01, SYMESZ, AUXESZ, RELSZ_V0, LINESZ, FILNMLEN,
5517 #ifdef COFF_LONG_FILENAMES
5522 COFF_DEFAULT_LONG_SECTION_NAMES,
5523 COFF_DEFAULT_SECTION_ALIGNMENT_POWER,
5524 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5529 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5534 coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in,
5535 coff_SWAP_reloc_in, ticoff0_bad_format_hook, coff_set_arch_mach_hook,
5536 coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook,
5537 coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook,
5538 coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate,
5539 coff_classify_symbol, coff_compute_section_file_positions,
5540 coff_start_final_link, coff_relocate_section, coff_rtype_to_howto,
5541 coff_adjust_symndx, coff_link_add_one_symbol,
5542 coff_link_output_has_begun, coff_final_link_postscript,
5548 /* COFF1 differs in section header size. */
5550 static bfd_coff_backend_data ticoff1_swap_table =
5552 coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in,
5553 coff_SWAP_aux_out, coff_SWAP_sym_out,
5554 coff_SWAP_lineno_out, coff_SWAP_reloc_out,
5555 coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out,
5556 coff_SWAP_scnhdr_out,
5557 FILHSZ, AOUTSZ, SCNHSZ_V01, SYMESZ, AUXESZ, RELSZ, LINESZ, FILNMLEN,
5558 #ifdef COFF_LONG_FILENAMES
5563 COFF_DEFAULT_LONG_SECTION_NAMES,
5564 COFF_DEFAULT_SECTION_ALIGNMENT_POWER,
5565 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5570 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5575 coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in,
5576 coff_SWAP_reloc_in, ticoff1_bad_format_hook, coff_set_arch_mach_hook,
5577 coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook,
5578 coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook,
5579 coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate,
5580 coff_classify_symbol, coff_compute_section_file_positions,
5581 coff_start_final_link, coff_relocate_section, coff_rtype_to_howto,
5582 coff_adjust_symndx, coff_link_add_one_symbol,
5583 coff_link_output_has_begun, coff_final_link_postscript,
5584 bfd_pe_print_pdata /* huh */
5588 #ifndef coff_close_and_cleanup
5589 #define coff_close_and_cleanup _bfd_generic_close_and_cleanup
5592 #ifndef coff_bfd_free_cached_info
5593 #define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
5596 #ifndef coff_get_section_contents
5597 #define coff_get_section_contents _bfd_generic_get_section_contents
5600 #ifndef coff_bfd_copy_private_symbol_data
5601 #define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data
5604 #ifndef coff_bfd_copy_private_header_data
5605 #define coff_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data
5608 #ifndef coff_bfd_copy_private_section_data
5609 #define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data
5612 #ifndef coff_bfd_copy_private_bfd_data
5613 #define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
5616 #ifndef coff_bfd_merge_private_bfd_data
5617 #define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
5620 #ifndef coff_bfd_set_private_flags
5621 #define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
5624 #ifndef coff_bfd_print_private_bfd_data
5625 #define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
5628 #ifndef coff_bfd_is_local_label_name
5629 #define coff_bfd_is_local_label_name _bfd_coff_is_local_label_name
5632 #ifndef coff_bfd_is_target_special_symbol
5633 #define coff_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
5636 #ifndef coff_read_minisymbols
5637 #define coff_read_minisymbols _bfd_generic_read_minisymbols
5640 #ifndef coff_minisymbol_to_symbol
5641 #define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
5644 /* The reloc lookup routine must be supplied by each individual COFF
5646 #ifndef coff_bfd_reloc_type_lookup
5647 #define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
5649 #ifndef coff_bfd_reloc_name_lookup
5650 #define coff_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
5653 #ifndef coff_bfd_get_relocated_section_contents
5654 #define coff_bfd_get_relocated_section_contents \
5655 bfd_generic_get_relocated_section_contents
5658 #ifndef coff_bfd_relax_section
5659 #define coff_bfd_relax_section bfd_generic_relax_section
5662 #ifndef coff_bfd_gc_sections
5663 #define coff_bfd_gc_sections bfd_generic_gc_sections
5666 #ifndef coff_bfd_lookup_section_flags
5667 #define coff_bfd_lookup_section_flags bfd_generic_lookup_section_flags
5670 #ifndef coff_bfd_merge_sections
5671 #define coff_bfd_merge_sections bfd_generic_merge_sections
5674 #ifndef coff_bfd_is_group_section
5675 #define coff_bfd_is_group_section bfd_generic_is_group_section
5678 #ifndef coff_bfd_discard_group
5679 #define coff_bfd_discard_group bfd_generic_discard_group
5682 #ifndef coff_section_already_linked
5683 #define coff_section_already_linked \
5684 _bfd_coff_section_already_linked
5687 #ifndef coff_bfd_define_common_symbol
5688 #define coff_bfd_define_common_symbol bfd_generic_define_common_symbol
5691 #define CREATE_BIG_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5692 const bfd_target VAR = \
5695 bfd_target_coff_flavour, \
5696 BFD_ENDIAN_BIG, /* Data byte order is big. */ \
5697 BFD_ENDIAN_BIG, /* Header byte order is big. */ \
5698 /* object flags */ \
5699 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5700 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5701 /* section flags */ \
5702 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5703 UNDER, /* Leading symbol underscore. */ \
5704 '/', /* AR_pad_char. */ \
5705 15, /* AR_max_namelen. */ \
5706 0, /* match priority. */ \
5708 /* Data conversion functions. */ \
5709 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5710 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5711 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5713 /* Header conversion functions. */ \
5714 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5715 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5716 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5718 /* bfd_check_format. */ \
5719 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5720 _bfd_dummy_target }, \
5721 /* bfd_set_format. */ \
5722 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
5723 /* bfd_write_contents. */ \
5724 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5727 BFD_JUMP_TABLE_GENERIC (coff), \
5728 BFD_JUMP_TABLE_COPY (coff), \
5729 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5730 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5731 BFD_JUMP_TABLE_SYMBOLS (coff), \
5732 BFD_JUMP_TABLE_RELOCS (coff), \
5733 BFD_JUMP_TABLE_WRITE (coff), \
5734 BFD_JUMP_TABLE_LINK (coff), \
5735 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5742 #define CREATE_BIGHDR_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5743 const bfd_target VAR = \
5746 bfd_target_coff_flavour, \
5747 BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \
5748 BFD_ENDIAN_BIG, /* Header byte order is big. */ \
5749 /* object flags */ \
5750 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5751 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5752 /* section flags */ \
5753 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5754 UNDER, /* Leading symbol underscore. */ \
5755 '/', /* AR_pad_char. */ \
5756 15, /* AR_max_namelen. */ \
5757 0, /* match priority. */ \
5759 /* Data conversion functions. */ \
5760 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5761 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5762 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5764 /* Header conversion functions. */ \
5765 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5766 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5767 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5769 /* bfd_check_format. */ \
5770 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5771 _bfd_dummy_target }, \
5772 /* bfd_set_format. */ \
5773 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
5774 /* bfd_write_contents. */ \
5775 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5778 BFD_JUMP_TABLE_GENERIC (coff), \
5779 BFD_JUMP_TABLE_COPY (coff), \
5780 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5781 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5782 BFD_JUMP_TABLE_SYMBOLS (coff), \
5783 BFD_JUMP_TABLE_RELOCS (coff), \
5784 BFD_JUMP_TABLE_WRITE (coff), \
5785 BFD_JUMP_TABLE_LINK (coff), \
5786 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5793 #define CREATE_LITTLE_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5794 const bfd_target VAR = \
5797 bfd_target_coff_flavour, \
5798 BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \
5799 BFD_ENDIAN_LITTLE, /* Header byte order is little. */ \
5800 /* object flags */ \
5801 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5802 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5803 /* section flags */ \
5804 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5805 UNDER, /* Leading symbol underscore. */ \
5806 '/', /* AR_pad_char. */ \
5807 15, /* AR_max_namelen. */ \
5808 0, /* match priority. */ \
5810 /* Data conversion functions. */ \
5811 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
5812 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
5813 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
5814 /* Header 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 /* bfd_check_format. */ \
5819 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5820 _bfd_dummy_target }, \
5821 /* bfd_set_format. */ \
5822 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
5823 /* bfd_write_contents. */ \
5824 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5827 BFD_JUMP_TABLE_GENERIC (coff), \
5828 BFD_JUMP_TABLE_COPY (coff), \
5829 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5830 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5831 BFD_JUMP_TABLE_SYMBOLS (coff), \
5832 BFD_JUMP_TABLE_RELOCS (coff), \
5833 BFD_JUMP_TABLE_WRITE (coff), \
5834 BFD_JUMP_TABLE_LINK (coff), \
5835 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \