1 /* Support for the generic parts of most COFF variants, for BFD.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
4 Free Software Foundation, Inc.
5 Written by Cygnus Support.
7 This file is part of BFD, the Binary File Descriptor library.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
22 MA 02110-1301, USA. */
24 /* Most of this hacked by Steve Chamberlain,
30 BFD supports a number of different flavours of coff format.
31 The major differences between formats are the sizes and
32 alignments of fields in structures on disk, and the occasional
35 Coff in all its varieties is implemented with a few common
36 files and a number of implementation specific files. For
37 example, The 88k bcs coff format is implemented in the file
38 @file{coff-m88k.c}. This file @code{#include}s
39 @file{coff/m88k.h} which defines the external structure of the
40 coff format for the 88k, and @file{coff/internal.h} which
41 defines the internal structure. @file{coff-m88k.c} also
42 defines the relocations used by the 88k format
45 The Intel i960 processor version of coff is implemented in
46 @file{coff-i960.c}. This file has the same structure as
47 @file{coff-m88k.c}, except that it includes @file{coff/i960.h}
48 rather than @file{coff-m88k.h}.
51 Porting to a new version of coff
53 The recommended method is to select from the existing
54 implementations the version of coff which is most like the one
55 you want to use. For example, we'll say that i386 coff is
56 the one you select, and that your coff flavour is called foo.
57 Copy @file{i386coff.c} to @file{foocoff.c}, copy
58 @file{../include/coff/i386.h} to @file{../include/coff/foo.h},
59 and add the lines to @file{targets.c} and @file{Makefile.in}
60 so that your new back end is used. Alter the shapes of the
61 structures in @file{../include/coff/foo.h} so that they match
62 what you need. You will probably also have to add
63 @code{#ifdef}s to the code in @file{coff/internal.h} and
64 @file{coffcode.h} if your version of coff is too wild.
66 You can verify that your new BFD backend works quite simply by
67 building @file{objdump} from the @file{binutils} directory,
68 and making sure that its version of what's going on and your
69 host system's idea (assuming it has the pretty standard coff
70 dump utility, usually called @code{att-dump} or just
71 @code{dump}) are the same. Then clean up your code, and send
72 what you've done to Cygnus. Then your stuff will be in the
73 next release, and you won't have to keep integrating it.
76 How the coff backend works
81 The Coff backend is split into generic routines that are
82 applicable to any Coff target and routines that are specific
83 to a particular target. The target-specific routines are
84 further split into ones which are basically the same for all
85 Coff targets except that they use the external symbol format
86 or use different values for certain constants.
88 The generic routines are in @file{coffgen.c}. These routines
89 work for any Coff target. They use some hooks into the target
90 specific code; the hooks are in a @code{bfd_coff_backend_data}
91 structure, one of which exists for each target.
93 The essentially similar target-specific routines are in
94 @file{coffcode.h}. This header file includes executable C code.
95 The various Coff targets first include the appropriate Coff
96 header file, make any special defines that are needed, and
97 then include @file{coffcode.h}.
99 Some of the Coff targets then also have additional routines in
100 the target source file itself.
102 For example, @file{coff-i960.c} includes
103 @file{coff/internal.h} and @file{coff/i960.h}. It then
104 defines a few constants, such as @code{I960}, and includes
105 @file{coffcode.h}. Since the i960 has complex relocation
106 types, @file{coff-i960.c} also includes some code to
107 manipulate the i960 relocs. This code is not in
108 @file{coffcode.h} because it would not be used by any other
112 Coff long section names
114 In the standard Coff object format, section names are limited to
115 the eight bytes available in the @code{s_name} field of the
116 @code{SCNHDR} section header structure. The format requires the
117 field to be NUL-padded, but not necessarily NUL-terminated, so
118 the longest section names permitted are a full eight characters.
120 The Microsoft PE variants of the Coff object file format add
121 an extension to support the use of long section names. This
122 extension is defined in section 4 of the Microsoft PE/COFF
123 specification (rev 8.1). If a section name is too long to fit
124 into the section header's @code{s_name} field, it is instead
125 placed into the string table, and the @code{s_name} field is
126 filled with a slash ("/") followed by the ASCII decimal
127 representation of the offset of the full name relative to the
130 Note that this implies that the extension can only be used in object
131 files, as executables do not contain a string table. The standard
132 specifies that long section names from objects emitted into executable
133 images are to be truncated.
135 However, as a GNU extension, BFD can generate executable images
136 that contain a string table and long section names. This
137 would appear to be technically valid, as the standard only says
138 that Coff debugging information is deprecated, not forbidden,
139 and in practice it works, although some tools that parse PE files
140 expecting the MS standard format may become confused; @file{PEview} is
143 The functionality is supported in BFD by code implemented under
144 the control of the macro @code{COFF_LONG_SECTION_NAMES}. If not
145 defined, the format does not support long section names in any way.
146 If defined, it is used to initialise a flag,
147 @code{_bfd_coff_long_section_names}, and a hook function pointer,
148 @code{_bfd_coff_set_long_section_names}, in the Coff backend data
149 structure. The flag controls the generation of long section names
150 in output BFDs at runtime; if it is false, as it will be by default
151 when generating an executable image, long section names are truncated;
152 if true, the long section names extension is employed. The hook
153 points to a function that allows the value of the flag to be altered
154 at runtime, on formats that support long section names at all; on
155 other formats it points to a stub that returns an error indication.
157 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;
367 #include "coffswap.h"
370 #define STRING_SIZE_SIZE 4
372 #define DOT_DEBUG ".debug"
373 #define GNU_LINKONCE_WI ".gnu.linkonce.wi."
375 #if defined (COFF_LONG_SECTION_NAMES)
376 /* Needed to expand the inputs to BLANKOR1TOODD. */
377 #define COFFLONGSECTIONCATHELPER(x,y) x ## y
378 /* If the input macro Y is blank or '1', return an odd number; if it is
379 '0', return an even number. Result undefined in all other cases. */
380 #define BLANKOR1TOODD(y) COFFLONGSECTIONCATHELPER(1,y)
381 /* Defined to numerical 0 or 1 according to whether generation of long
382 section names is disabled or enabled by default. */
383 #define COFF_ENABLE_LONG_SECTION_NAMES (BLANKOR1TOODD(COFF_LONG_SECTION_NAMES) & 1)
384 /* Where long section names are supported, we allow them to be enabled
385 and disabled at runtime, so select an appropriate hook function for
386 _bfd_coff_set_long_section_names. */
387 #define COFF_LONG_SECTION_NAMES_SETTER bfd_coff_set_long_section_names_allowed
388 #else /* !defined (COFF_LONG_SECTION_NAMES) */
389 /* If long section names are not supported, this stub disallows any
390 attempt to enable them at run-time. */
391 #define COFF_LONG_SECTION_NAMES_SETTER bfd_coff_set_long_section_names_disallowed
392 #endif /* defined (COFF_LONG_SECTION_NAMES) */
394 /* Define a macro that can be used to initialise both the fields relating
395 to long section names in the backend data struct simultaneously. */
396 #if COFF_ENABLE_LONG_SECTION_NAMES
397 #define COFF_DEFAULT_LONG_SECTION_NAMES (TRUE), COFF_LONG_SECTION_NAMES_SETTER
398 #else /* !COFF_ENABLE_LONG_SECTION_NAMES */
399 #define COFF_DEFAULT_LONG_SECTION_NAMES (FALSE), COFF_LONG_SECTION_NAMES_SETTER
400 #endif /* COFF_ENABLE_LONG_SECTION_NAMES */
402 #if defined (COFF_LONG_SECTION_NAMES)
403 static bfd_boolean bfd_coff_set_long_section_names_allowed
405 #else /* !defined (COFF_LONG_SECTION_NAMES) */
406 static bfd_boolean bfd_coff_set_long_section_names_disallowed
408 #endif /* defined (COFF_LONG_SECTION_NAMES) */
409 static long sec_to_styp_flags
410 (const char *, flagword);
411 static bfd_boolean styp_to_sec_flags
412 (bfd *, void *, const char *, asection *, flagword *);
413 static bfd_boolean coff_bad_format_hook
415 static void coff_set_custom_section_alignment
416 (bfd *, asection *, const struct coff_section_alignment_entry *,
418 static bfd_boolean coff_new_section_hook
420 static bfd_boolean coff_set_arch_mach_hook
422 static bfd_boolean coff_write_relocs
424 static bfd_boolean coff_set_flags
425 (bfd *, unsigned int *, unsigned short *);
426 static bfd_boolean coff_set_arch_mach
427 (bfd *, enum bfd_architecture, unsigned long) ATTRIBUTE_UNUSED;
428 static bfd_boolean coff_compute_section_file_positions
430 static bfd_boolean coff_write_object_contents
431 (bfd *) ATTRIBUTE_UNUSED;
432 static bfd_boolean coff_set_section_contents
433 (bfd *, asection *, const void *, file_ptr, bfd_size_type);
434 static void * buy_and_read
435 (bfd *, file_ptr, bfd_size_type);
436 static bfd_boolean coff_slurp_line_table
438 static bfd_boolean coff_slurp_symbol_table
440 static enum coff_symbol_classification coff_classify_symbol
441 (bfd *, struct internal_syment *);
442 static bfd_boolean coff_slurp_reloc_table
443 (bfd *, asection *, asymbol **);
444 static long coff_canonicalize_reloc
445 (bfd *, asection *, arelent **, asymbol **);
446 #ifndef coff_mkobject_hook
447 static void * coff_mkobject_hook
448 (bfd *, void *, void *);
451 static flagword handle_COMDAT
452 (bfd *, flagword, void *, const char *, asection *);
454 #ifdef COFF_IMAGE_WITH_PE
455 static bfd_boolean coff_read_word
456 (bfd *, unsigned int *);
457 static unsigned int coff_compute_checksum
459 static bfd_boolean coff_apply_checksum
463 static bfd_boolean ticoff0_bad_format_hook
465 static bfd_boolean ticoff1_bad_format_hook
469 /* void warning(); */
471 #if defined (COFF_LONG_SECTION_NAMES)
473 bfd_coff_set_long_section_names_allowed (bfd *abfd, int enable)
475 coff_backend_info (abfd)->_bfd_coff_long_section_names = enable;
478 #else /* !defined (COFF_LONG_SECTION_NAMES) */
480 bfd_coff_set_long_section_names_disallowed (bfd *abfd, int enable)
486 #endif /* defined (COFF_LONG_SECTION_NAMES) */
488 /* Return a word with STYP_* (scnhdr.s_flags) flags set to represent
489 the incoming SEC_* flags. The inverse of this function is
490 styp_to_sec_flags(). NOTE: If you add to/change this routine, you
491 should probably mirror the changes in styp_to_sec_flags(). */
495 /* Macros for setting debugging flags. */
498 #define STYP_XCOFF_DEBUG STYP_DEBUG
500 #define STYP_XCOFF_DEBUG STYP_INFO
503 #ifdef COFF_ALIGN_IN_S_FLAGS
504 #define STYP_DEBUG_INFO STYP_DSECT
506 #define STYP_DEBUG_INFO STYP_INFO
510 sec_to_styp_flags (const char *sec_name, flagword sec_flags)
514 if (!strcmp (sec_name, _TEXT))
516 styp_flags = STYP_TEXT;
518 else if (!strcmp (sec_name, _DATA))
520 styp_flags = STYP_DATA;
522 else if (!strcmp (sec_name, _BSS))
524 styp_flags = STYP_BSS;
527 else if (!strcmp (sec_name, _COMMENT))
529 styp_flags = STYP_INFO;
530 #endif /* _COMMENT */
533 else if (!strcmp (sec_name, _LIB))
535 styp_flags = STYP_LIB;
539 else if (!strcmp (sec_name, _LIT))
541 styp_flags = STYP_LIT;
544 else if (CONST_STRNEQ (sec_name, DOT_DEBUG))
546 /* Handle the XCOFF debug section and DWARF2 debug sections. */
548 styp_flags = STYP_XCOFF_DEBUG;
550 styp_flags = STYP_DEBUG_INFO;
552 else if (CONST_STRNEQ (sec_name, ".stab"))
554 styp_flags = STYP_DEBUG_INFO;
556 #ifdef COFF_LONG_SECTION_NAMES
557 else if (CONST_STRNEQ (sec_name, GNU_LINKONCE_WI))
559 styp_flags = STYP_DEBUG_INFO;
563 else if (!strcmp (sec_name, _PAD))
565 styp_flags = STYP_PAD;
567 else if (!strcmp (sec_name, _LOADER))
569 styp_flags = STYP_LOADER;
571 else if (!strcmp (sec_name, _EXCEPT))
573 styp_flags = STYP_EXCEPT;
575 else if (!strcmp (sec_name, _TYPCHK))
577 styp_flags = STYP_TYPCHK;
580 /* Try and figure out what it should be */
581 else if (sec_flags & SEC_CODE)
583 styp_flags = STYP_TEXT;
585 else if (sec_flags & SEC_DATA)
587 styp_flags = STYP_DATA;
589 else if (sec_flags & SEC_READONLY)
591 #ifdef STYP_LIT /* 29k readonly text/data section */
592 styp_flags = STYP_LIT;
594 styp_flags = STYP_TEXT;
595 #endif /* STYP_LIT */
597 else if (sec_flags & SEC_LOAD)
599 styp_flags = STYP_TEXT;
601 else if (sec_flags & SEC_ALLOC)
603 styp_flags = STYP_BSS;
607 if (sec_flags & SEC_TIC54X_CLINK)
608 styp_flags |= STYP_CLINK;
612 if (sec_flags & SEC_TIC54X_BLOCK)
613 styp_flags |= STYP_BLOCK;
617 if ((sec_flags & (SEC_NEVER_LOAD | SEC_COFF_SHARED_LIBRARY)) != 0)
618 styp_flags |= STYP_NOLOAD;
624 #else /* COFF_WITH_PE */
626 /* The PE version; see above for the general comments. The non-PE
627 case seems to be more guessing, and breaks PE format; specifically,
628 .rdata is readonly, but it sure ain't text. Really, all this
629 should be set up properly in gas (or whatever assembler is in use),
630 and honor whatever objcopy/strip, etc. sent us as input. */
633 sec_to_styp_flags (const char *sec_name, flagword sec_flags)
637 /* caution: there are at least three groups of symbols that have
638 very similar bits and meanings: IMAGE_SCN*, SEC_*, and STYP_*.
639 SEC_* are the BFD internal flags, used for generic BFD
640 information. STYP_* are the COFF section flags which appear in
641 COFF files. IMAGE_SCN_* are the PE section flags which appear in
642 PE files. The STYP_* flags and the IMAGE_SCN_* flags overlap,
643 but there are more IMAGE_SCN_* flags. */
645 /* FIXME: There is no gas syntax to specify the debug section flag. */
646 if (CONST_STRNEQ (sec_name, DOT_DEBUG)
647 || CONST_STRNEQ (sec_name, GNU_LINKONCE_WI))
648 sec_flags = SEC_DEBUGGING | SEC_READONLY;
653 if ((sec_flags & SEC_CODE) != 0)
654 styp_flags |= IMAGE_SCN_CNT_CODE;
655 if ((sec_flags & SEC_DATA) != 0)
656 styp_flags |= IMAGE_SCN_CNT_INITIALIZED_DATA;
657 if ((sec_flags & SEC_ALLOC) != 0 && (sec_flags & SEC_LOAD) == 0)
658 styp_flags |= IMAGE_SCN_CNT_UNINITIALIZED_DATA; /* ==STYP_BSS */
660 /* skip constRUCTOR */
662 if ((sec_flags & SEC_IS_COMMON) != 0)
663 styp_flags |= IMAGE_SCN_LNK_COMDAT;
664 if ((sec_flags & SEC_DEBUGGING) != 0)
665 styp_flags |= IMAGE_SCN_MEM_DISCARDABLE;
666 if ((sec_flags & SEC_EXCLUDE) != 0)
667 styp_flags |= IMAGE_SCN_LNK_REMOVE;
668 if ((sec_flags & SEC_NEVER_LOAD) != 0)
669 styp_flags |= IMAGE_SCN_LNK_REMOVE;
672 if (sec_flags & SEC_LINK_ONCE)
673 styp_flags |= IMAGE_SCN_LNK_COMDAT;
674 /* skip LINK_DUPLICATES */
675 /* skip LINKER_CREATED */
677 if ((sec_flags & SEC_COFF_NOREAD) == 0)
678 styp_flags |= IMAGE_SCN_MEM_READ; /* Invert NOREAD for read. */
679 if ((sec_flags & SEC_READONLY) == 0)
680 styp_flags |= IMAGE_SCN_MEM_WRITE; /* Invert READONLY for write. */
681 if (sec_flags & SEC_CODE)
682 styp_flags |= IMAGE_SCN_MEM_EXECUTE; /* CODE->EXECUTE. */
683 if (sec_flags & SEC_COFF_SHARED)
684 styp_flags |= IMAGE_SCN_MEM_SHARED; /* Shared remains meaningful. */
689 #endif /* COFF_WITH_PE */
691 /* Return a word with SEC_* flags set to represent the incoming STYP_*
692 flags (from scnhdr.s_flags). The inverse of this function is
693 sec_to_styp_flags(). NOTE: If you add to/change this routine, you
694 should probably mirror the changes in sec_to_styp_flags(). */
699 styp_to_sec_flags (bfd *abfd ATTRIBUTE_UNUSED,
702 asection *section ATTRIBUTE_UNUSED,
705 struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
706 long styp_flags = internal_s->s_flags;
707 flagword sec_flags = 0;
710 if (styp_flags & STYP_BLOCK)
711 sec_flags |= SEC_TIC54X_BLOCK;
715 if (styp_flags & STYP_CLINK)
716 sec_flags |= SEC_TIC54X_CLINK;
720 if (styp_flags & STYP_NOLOAD)
721 sec_flags |= SEC_NEVER_LOAD;
722 #endif /* STYP_NOLOAD */
724 /* For 386 COFF, at least, an unloadable text or data section is
725 actually a shared library section. */
726 if (styp_flags & STYP_TEXT)
728 if (sec_flags & SEC_NEVER_LOAD)
729 sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY;
731 sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC;
733 else if (styp_flags & STYP_DATA)
735 if (sec_flags & SEC_NEVER_LOAD)
736 sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY;
738 sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC;
740 else if (styp_flags & STYP_BSS)
742 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
743 if (sec_flags & SEC_NEVER_LOAD)
744 sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY;
747 sec_flags |= SEC_ALLOC;
749 else if (styp_flags & STYP_INFO)
751 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
752 defined. coff_compute_section_file_positions uses
753 COFF_PAGE_SIZE to ensure that the low order bits of the
754 section VMA and the file offset match. If we don't know
755 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
756 and demand page loading of the file will fail. */
757 #if defined (COFF_PAGE_SIZE) && !defined (COFF_ALIGN_IN_S_FLAGS)
758 sec_flags |= SEC_DEBUGGING;
761 else if (styp_flags & STYP_PAD)
763 else if (strcmp (name, _TEXT) == 0)
765 if (sec_flags & SEC_NEVER_LOAD)
766 sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY;
768 sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC;
770 else if (strcmp (name, _DATA) == 0)
772 if (sec_flags & SEC_NEVER_LOAD)
773 sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY;
775 sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC;
777 else if (strcmp (name, _BSS) == 0)
779 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
780 if (sec_flags & SEC_NEVER_LOAD)
781 sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY;
784 sec_flags |= SEC_ALLOC;
786 else if (CONST_STRNEQ (name, DOT_DEBUG)
788 || strcmp (name, _COMMENT) == 0
790 #ifdef COFF_LONG_SECTION_NAMES
791 || CONST_STRNEQ (name, GNU_LINKONCE_WI)
793 || CONST_STRNEQ (name, ".stab"))
795 #ifdef COFF_PAGE_SIZE
796 sec_flags |= SEC_DEBUGGING;
800 else if (strcmp (name, _LIB) == 0)
804 else if (strcmp (name, _LIT) == 0)
805 sec_flags = SEC_LOAD | SEC_ALLOC | SEC_READONLY;
808 sec_flags |= SEC_ALLOC | SEC_LOAD;
810 #ifdef STYP_LIT /* A29k readonly text/data section type. */
811 if ((styp_flags & STYP_LIT) == STYP_LIT)
812 sec_flags = (SEC_LOAD | SEC_ALLOC | SEC_READONLY);
813 #endif /* STYP_LIT */
815 #ifdef STYP_OTHER_LOAD /* Other loaded sections. */
816 if (styp_flags & STYP_OTHER_LOAD)
817 sec_flags = (SEC_LOAD | SEC_ALLOC);
818 #endif /* STYP_SDATA */
820 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
821 /* As a GNU extension, if the name begins with .gnu.linkonce, we
822 only link a single copy of the section. This is used to support
823 g++. g++ will emit each template expansion in its own section.
824 The symbols will be defined as weak, so that multiple definitions
825 are permitted. The GNU linker extension is to actually discard
826 all but one of the sections. */
827 if (CONST_STRNEQ (name, ".gnu.linkonce"))
828 sec_flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD;
831 if (flags_ptr == NULL)
834 * flags_ptr = sec_flags;
838 #else /* COFF_WITH_PE */
841 handle_COMDAT (bfd * abfd,
847 struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
848 bfd_byte *esymstart, *esym, *esymend;
850 char *target_name = NULL;
852 sec_flags |= SEC_LINK_ONCE;
854 /* Unfortunately, the PE format stores essential information in
855 the symbol table, of all places. We need to extract that
856 information now, so that objdump and the linker will know how
857 to handle the section without worrying about the symbols. We
858 can't call slurp_symtab, because the linker doesn't want the
861 /* COMDAT sections are special. The first symbol is the section
862 symbol, which tells what kind of COMDAT section it is. The
863 second symbol is the "comdat symbol" - the one with the
864 unique name. GNU uses the section symbol for the unique
865 name; MS uses ".text" for every comdat section. Sigh. - DJ */
867 /* This is not mirrored in sec_to_styp_flags(), but there
868 doesn't seem to be a need to, either, and it would at best be
871 if (! _bfd_coff_get_external_symbols (abfd))
874 esymstart = esym = (bfd_byte *) obj_coff_external_syms (abfd);
875 esymend = esym + obj_raw_syment_count (abfd) * bfd_coff_symesz (abfd);
877 while (esym < esymend)
879 struct internal_syment isym;
880 char buf[SYMNMLEN + 1];
883 bfd_coff_swap_sym_in (abfd, esym, & isym);
885 if (sizeof (internal_s->s_name) > SYMNMLEN)
887 /* This case implies that the matching
888 symbol name will be in the string table. */
892 if (isym.n_scnum == section->target_index)
894 /* According to the MSVC documentation, the first
895 TWO entries with the section # are both of
896 interest to us. The first one is the "section
897 symbol" (section name). The second is the comdat
898 symbol name. Here, we've found the first
899 qualifying entry; we distinguish it from the
900 second with a state flag.
902 In the case of gas-generated (at least until that
903 is fixed) .o files, it isn't necessarily the
904 second one. It may be some other later symbol.
906 Since gas also doesn't follow MS conventions and
907 emits the section similar to .text$<name>, where
908 <something> is the name we're looking for, we
909 distinguish the two as follows:
911 If the section name is simply a section name (no
912 $) we presume it's MS-generated, and look at
913 precisely the second symbol for the comdat name.
914 If the section name has a $, we assume it's
915 gas-generated, and look for <something> (whatever
916 follows the $) as the comdat symbol. */
918 /* All 3 branches use this. */
919 symname = _bfd_coff_internal_syment_name (abfd, &isym, buf);
928 /* The first time we've seen the symbol. */
929 union internal_auxent aux;
931 /* If it isn't the stuff we're expecting, die;
932 The MS documentation is vague, but it
933 appears that the second entry serves BOTH
934 as the comdat symbol and the defining
935 symbol record (either C_STAT or C_EXT,
936 possibly with an aux entry with debug
937 information if it's a function.) It
938 appears the only way to find the second one
939 is to count. (On Intel, they appear to be
940 adjacent, but on Alpha, they have been
943 Here, we think we've found the first one,
944 but there's some checking we can do to be
947 if (! (isym.n_sclass == C_STAT
948 && isym.n_type == T_NULL
949 && isym.n_value == 0))
952 /* FIXME LATER: MSVC generates section names
953 like .text for comdats. Gas generates
954 names like .text$foo__Fv (in the case of a
955 function). See comment above for more. */
957 if (strcmp (name, symname) != 0)
958 _bfd_error_handler (_("%B: warning: COMDAT symbol '%s' does not match section name '%s'"),
959 abfd, symname, name);
963 /* This is the section symbol. */
964 bfd_coff_swap_aux_in (abfd, (esym + bfd_coff_symesz (abfd)),
965 isym.n_type, isym.n_sclass,
966 0, isym.n_numaux, & aux);
968 target_name = strchr (name, '$');
969 if (target_name != NULL)
977 /* FIXME: Microsoft uses NODUPLICATES and
978 ASSOCIATIVE, but gnu uses ANY and
979 SAME_SIZE. Unfortunately, gnu doesn't do
980 the comdat symbols right. So, until we can
981 fix it to do the right thing, we are
982 temporarily disabling comdats for the MS
983 types (they're used in DLLs and C++, but we
984 don't support *their* C++ libraries anyway
987 /* Cygwin does not follow the MS style, and
988 uses ANY and SAME_SIZE where NODUPLICATES
989 and ASSOCIATIVE should be used. For
990 Interix, we just do the right thing up
993 switch (aux.x_scn.x_comdat)
995 case IMAGE_COMDAT_SELECT_NODUPLICATES:
996 #ifdef STRICT_PE_FORMAT
997 sec_flags |= SEC_LINK_DUPLICATES_ONE_ONLY;
999 sec_flags &= ~SEC_LINK_ONCE;
1003 case IMAGE_COMDAT_SELECT_ANY:
1004 sec_flags |= SEC_LINK_DUPLICATES_DISCARD;
1007 case IMAGE_COMDAT_SELECT_SAME_SIZE:
1008 sec_flags |= SEC_LINK_DUPLICATES_SAME_SIZE;
1011 case IMAGE_COMDAT_SELECT_EXACT_MATCH:
1012 /* Not yet fully implemented ??? */
1013 sec_flags |= SEC_LINK_DUPLICATES_SAME_CONTENTS;
1016 /* debug$S gets this case; other
1019 /* There may be no symbol... we'll search
1020 the whole table... Is this the right
1021 place to play this game? Or should we do
1022 it when reading it in. */
1023 case IMAGE_COMDAT_SELECT_ASSOCIATIVE:
1024 #ifdef STRICT_PE_FORMAT
1025 /* FIXME: This is not currently implemented. */
1026 sec_flags |= SEC_LINK_DUPLICATES_DISCARD;
1028 sec_flags &= ~SEC_LINK_ONCE;
1032 default: /* 0 means "no symbol" */
1033 /* debug$F gets this case; other
1035 sec_flags |= SEC_LINK_DUPLICATES_DISCARD;
1042 /* Gas mode: the first matching on partial name. */
1044 #ifndef TARGET_UNDERSCORE
1045 #define TARGET_UNDERSCORE 0
1047 /* Is this the name we're looking for ? */
1048 if (strcmp (target_name,
1049 symname + (TARGET_UNDERSCORE ? 1 : 0)) != 0)
1051 /* Not the name we're looking for */
1052 esym += (isym.n_numaux + 1) * bfd_coff_symesz (abfd);
1057 /* MSVC mode: the lexically second symbol (or
1058 drop through from the above). */
1063 /* This must the second symbol with the
1064 section #. It is the actual symbol name.
1065 Intel puts the two adjacent, but Alpha (at
1066 least) spreads them out. */
1068 amt = sizeof (struct coff_comdat_info);
1069 coff_section_data (abfd, section)->comdat
1070 = bfd_alloc (abfd, amt);
1071 if (coff_section_data (abfd, section)->comdat == NULL)
1074 coff_section_data (abfd, section)->comdat->symbol =
1075 (esym - esymstart) / bfd_coff_symesz (abfd);
1077 amt = strlen (symname) + 1;
1078 newname = bfd_alloc (abfd, amt);
1079 if (newname == NULL)
1082 strcpy (newname, symname);
1083 coff_section_data (abfd, section)->comdat->name
1091 esym += (isym.n_numaux + 1) * bfd_coff_symesz (abfd);
1099 /* The PE version; see above for the general comments.
1101 Since to set the SEC_LINK_ONCE and associated flags, we have to
1102 look at the symbol table anyway, we return the symbol table index
1103 of the symbol being used as the COMDAT symbol. This is admittedly
1104 ugly, but there's really nowhere else that we have access to the
1105 required information. FIXME: Is the COMDAT symbol index used for
1106 any purpose other than objdump? */
1109 styp_to_sec_flags (bfd *abfd,
1113 flagword *flags_ptr)
1115 struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
1116 long styp_flags = internal_s->s_flags;
1118 bfd_boolean result = TRUE;
1120 /* Assume read only unless IMAGE_SCN_MEM_WRITE is specified. */
1121 sec_flags = SEC_READONLY;
1123 /* If section disallows read, then set the NOREAD flag. */
1124 if ((styp_flags & IMAGE_SCN_MEM_READ) == 0)
1125 sec_flags |= SEC_COFF_NOREAD;
1127 /* Process each flag bit in styp_flags in turn. */
1130 long flag = styp_flags & - styp_flags;
1131 char * unhandled = NULL;
1133 styp_flags &= ~ flag;
1135 /* We infer from the distinct read/write/execute bits the settings
1136 of some of the bfd flags; the actual values, should we need them,
1137 are also in pei_section_data (abfd, section)->pe_flags. */
1142 unhandled = "STYP_DSECT";
1145 unhandled = "STYP_GROUP";
1148 unhandled = "STYP_COPY";
1151 unhandled = "STYP_OVER";
1153 #ifdef SEC_NEVER_LOAD
1155 sec_flags |= SEC_NEVER_LOAD;
1158 case IMAGE_SCN_MEM_READ:
1159 sec_flags &= ~SEC_COFF_NOREAD;
1161 case IMAGE_SCN_TYPE_NO_PAD:
1164 case IMAGE_SCN_LNK_OTHER:
1165 unhandled = "IMAGE_SCN_LNK_OTHER";
1167 case IMAGE_SCN_MEM_NOT_CACHED:
1168 unhandled = "IMAGE_SCN_MEM_NOT_CACHED";
1170 case IMAGE_SCN_MEM_NOT_PAGED:
1171 /* Generate a warning message rather using the 'unhandled'
1172 variable as this will allow some .sys files generate by
1173 other toolchains to be processed. See bugzilla issue 196. */
1174 _bfd_error_handler (_("%B: Warning: Ignoring section flag IMAGE_SCN_MEM_NOT_PAGED in section %s"),
1177 case IMAGE_SCN_MEM_EXECUTE:
1178 sec_flags |= SEC_CODE;
1180 case IMAGE_SCN_MEM_WRITE:
1181 sec_flags &= ~ SEC_READONLY;
1183 case IMAGE_SCN_MEM_DISCARDABLE:
1184 /* The MS PE spec says that debug sections are DISCARDABLE,
1185 but the presence of a DISCARDABLE flag does not necessarily
1186 mean that a given section contains debug information. Thus
1187 we only set the SEC_DEBUGGING flag on sections that we
1188 recognise as containing debug information. */
1189 if (CONST_STRNEQ (name, DOT_DEBUG)
1191 || strcmp (name, _COMMENT) == 0
1193 #ifdef COFF_LONG_SECTION_NAMES
1194 || CONST_STRNEQ (name, GNU_LINKONCE_WI)
1196 || CONST_STRNEQ (name, ".stab"))
1197 sec_flags |= SEC_DEBUGGING;
1199 case IMAGE_SCN_MEM_SHARED:
1200 sec_flags |= SEC_COFF_SHARED;
1202 case IMAGE_SCN_LNK_REMOVE:
1203 sec_flags |= SEC_EXCLUDE;
1205 case IMAGE_SCN_CNT_CODE:
1206 sec_flags |= SEC_CODE | SEC_ALLOC | SEC_LOAD;
1208 case IMAGE_SCN_CNT_INITIALIZED_DATA:
1209 sec_flags |= SEC_DATA | SEC_ALLOC | SEC_LOAD;
1211 case IMAGE_SCN_CNT_UNINITIALIZED_DATA:
1212 sec_flags |= SEC_ALLOC;
1214 case IMAGE_SCN_LNK_INFO:
1215 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
1216 defined. coff_compute_section_file_positions uses
1217 COFF_PAGE_SIZE to ensure that the low order bits of the
1218 section VMA and the file offset match. If we don't know
1219 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
1220 and demand page loading of the file will fail. */
1221 #ifdef COFF_PAGE_SIZE
1222 sec_flags |= SEC_DEBUGGING;
1225 case IMAGE_SCN_LNK_COMDAT:
1226 /* COMDAT gets very special treatment. */
1227 sec_flags = handle_COMDAT (abfd, sec_flags, hdr, name, section);
1230 /* Silently ignore for now. */
1234 /* If the section flag was not handled, report it here. */
1235 if (unhandled != NULL)
1237 (*_bfd_error_handler)
1238 (_("%B (%s): Section flag %s (0x%x) ignored"),
1239 abfd, name, unhandled, flag);
1244 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
1245 /* As a GNU extension, if the name begins with .gnu.linkonce, we
1246 only link a single copy of the section. This is used to support
1247 g++. g++ will emit each template expansion in its own section.
1248 The symbols will be defined as weak, so that multiple definitions
1249 are permitted. The GNU linker extension is to actually discard
1250 all but one of the sections. */
1251 if (CONST_STRNEQ (name, ".gnu.linkonce"))
1252 sec_flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD;
1256 * flags_ptr = sec_flags;
1261 #endif /* COFF_WITH_PE */
1263 #define get_index(symbol) ((symbol)->udata.i)
1267 bfd_coff_backend_data
1271 .{* COFF symbol classifications. *}
1273 .enum coff_symbol_classification
1275 . {* Global symbol. *}
1276 . COFF_SYMBOL_GLOBAL,
1277 . {* Common symbol. *}
1278 . COFF_SYMBOL_COMMON,
1279 . {* Undefined symbol. *}
1280 . COFF_SYMBOL_UNDEFINED,
1281 . {* Local symbol. *}
1282 . COFF_SYMBOL_LOCAL,
1283 . {* PE section symbol. *}
1284 . COFF_SYMBOL_PE_SECTION
1287 Special entry points for gdb to swap in coff symbol table parts:
1290 . void (*_bfd_coff_swap_aux_in)
1291 . (bfd *, void *, int, int, int, int, void *);
1293 . void (*_bfd_coff_swap_sym_in)
1294 . (bfd *, void *, void *);
1296 . void (*_bfd_coff_swap_lineno_in)
1297 . (bfd *, void *, void *);
1299 . unsigned int (*_bfd_coff_swap_aux_out)
1300 . (bfd *, void *, int, int, int, int, void *);
1302 . unsigned int (*_bfd_coff_swap_sym_out)
1303 . (bfd *, void *, void *);
1305 . unsigned int (*_bfd_coff_swap_lineno_out)
1306 . (bfd *, void *, void *);
1308 . unsigned int (*_bfd_coff_swap_reloc_out)
1309 . (bfd *, void *, void *);
1311 . unsigned int (*_bfd_coff_swap_filehdr_out)
1312 . (bfd *, void *, void *);
1314 . unsigned int (*_bfd_coff_swap_aouthdr_out)
1315 . (bfd *, void *, void *);
1317 . unsigned int (*_bfd_coff_swap_scnhdr_out)
1318 . (bfd *, void *, void *);
1320 . unsigned int _bfd_filhsz;
1321 . unsigned int _bfd_aoutsz;
1322 . unsigned int _bfd_scnhsz;
1323 . unsigned int _bfd_symesz;
1324 . unsigned int _bfd_auxesz;
1325 . unsigned int _bfd_relsz;
1326 . unsigned int _bfd_linesz;
1327 . unsigned int _bfd_filnmlen;
1328 . bfd_boolean _bfd_coff_long_filenames;
1330 . bfd_boolean _bfd_coff_long_section_names;
1331 . bfd_boolean (*_bfd_coff_set_long_section_names)
1334 . unsigned int _bfd_coff_default_section_alignment_power;
1335 . bfd_boolean _bfd_coff_force_symnames_in_strings;
1336 . unsigned int _bfd_coff_debug_string_prefix_length;
1338 . void (*_bfd_coff_swap_filehdr_in)
1339 . (bfd *, void *, void *);
1341 . void (*_bfd_coff_swap_aouthdr_in)
1342 . (bfd *, void *, void *);
1344 . void (*_bfd_coff_swap_scnhdr_in)
1345 . (bfd *, void *, void *);
1347 . void (*_bfd_coff_swap_reloc_in)
1348 . (bfd *abfd, void *, void *);
1350 . bfd_boolean (*_bfd_coff_bad_format_hook)
1353 . bfd_boolean (*_bfd_coff_set_arch_mach_hook)
1356 . void * (*_bfd_coff_mkobject_hook)
1357 . (bfd *, void *, void *);
1359 . bfd_boolean (*_bfd_styp_to_sec_flags_hook)
1360 . (bfd *, void *, const char *, asection *, flagword *);
1362 . void (*_bfd_set_alignment_hook)
1363 . (bfd *, asection *, void *);
1365 . bfd_boolean (*_bfd_coff_slurp_symbol_table)
1368 . bfd_boolean (*_bfd_coff_symname_in_debug)
1369 . (bfd *, struct internal_syment *);
1371 . bfd_boolean (*_bfd_coff_pointerize_aux_hook)
1372 . (bfd *, combined_entry_type *, combined_entry_type *,
1373 . unsigned int, combined_entry_type *);
1375 . bfd_boolean (*_bfd_coff_print_aux)
1376 . (bfd *, FILE *, combined_entry_type *, combined_entry_type *,
1377 . combined_entry_type *, unsigned int);
1379 . void (*_bfd_coff_reloc16_extra_cases)
1380 . (bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *,
1381 . bfd_byte *, unsigned int *, unsigned int *);
1383 . int (*_bfd_coff_reloc16_estimate)
1384 . (bfd *, asection *, arelent *, unsigned int,
1385 . struct bfd_link_info *);
1387 . enum coff_symbol_classification (*_bfd_coff_classify_symbol)
1388 . (bfd *, struct internal_syment *);
1390 . bfd_boolean (*_bfd_coff_compute_section_file_positions)
1393 . bfd_boolean (*_bfd_coff_start_final_link)
1394 . (bfd *, struct bfd_link_info *);
1396 . bfd_boolean (*_bfd_coff_relocate_section)
1397 . (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
1398 . struct internal_reloc *, struct internal_syment *, asection **);
1400 . reloc_howto_type *(*_bfd_coff_rtype_to_howto)
1401 . (bfd *, asection *, struct internal_reloc *,
1402 . struct coff_link_hash_entry *, struct internal_syment *,
1405 . bfd_boolean (*_bfd_coff_adjust_symndx)
1406 . (bfd *, struct bfd_link_info *, bfd *, asection *,
1407 . struct internal_reloc *, bfd_boolean *);
1409 . bfd_boolean (*_bfd_coff_link_add_one_symbol)
1410 . (struct bfd_link_info *, bfd *, const char *, flagword,
1411 . asection *, bfd_vma, const char *, bfd_boolean, bfd_boolean,
1412 . struct bfd_link_hash_entry **);
1414 . bfd_boolean (*_bfd_coff_link_output_has_begun)
1415 . (bfd *, struct coff_final_link_info *);
1417 . bfd_boolean (*_bfd_coff_final_link_postscript)
1418 . (bfd *, struct coff_final_link_info *);
1420 . bfd_boolean (*_bfd_coff_print_pdata)
1423 .} bfd_coff_backend_data;
1425 .#define coff_backend_info(abfd) \
1426 . ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
1428 .#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \
1429 . ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i))
1431 .#define bfd_coff_swap_sym_in(a,e,i) \
1432 . ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))
1434 .#define bfd_coff_swap_lineno_in(a,e,i) \
1435 . ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))
1437 .#define bfd_coff_swap_reloc_out(abfd, i, o) \
1438 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))
1440 .#define bfd_coff_swap_lineno_out(abfd, i, o) \
1441 . ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))
1443 .#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \
1444 . ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o))
1446 .#define bfd_coff_swap_sym_out(abfd, i,o) \
1447 . ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))
1449 .#define bfd_coff_swap_scnhdr_out(abfd, i,o) \
1450 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))
1452 .#define bfd_coff_swap_filehdr_out(abfd, i,o) \
1453 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))
1455 .#define bfd_coff_swap_aouthdr_out(abfd, i,o) \
1456 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
1458 .#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
1459 .#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
1460 .#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
1461 .#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
1462 .#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
1463 .#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz)
1464 .#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
1465 .#define bfd_coff_filnmlen(abfd) (coff_backend_info (abfd)->_bfd_filnmlen)
1466 .#define bfd_coff_long_filenames(abfd) \
1467 . (coff_backend_info (abfd)->_bfd_coff_long_filenames)
1468 .#define bfd_coff_long_section_names(abfd) \
1469 . (coff_backend_info (abfd)->_bfd_coff_long_section_names)
1470 .#define bfd_coff_set_long_section_names(abfd, enable) \
1471 . ((coff_backend_info (abfd)->_bfd_coff_set_long_section_names) (abfd, enable))
1472 .#define bfd_coff_default_section_alignment_power(abfd) \
1473 . (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power)
1474 .#define bfd_coff_swap_filehdr_in(abfd, i,o) \
1475 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
1477 .#define bfd_coff_swap_aouthdr_in(abfd, i,o) \
1478 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))
1480 .#define bfd_coff_swap_scnhdr_in(abfd, i,o) \
1481 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
1483 .#define bfd_coff_swap_reloc_in(abfd, i, o) \
1484 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))
1486 .#define bfd_coff_bad_format_hook(abfd, filehdr) \
1487 . ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
1489 .#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
1490 . ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
1491 .#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\
1492 . ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook)\
1493 . (abfd, filehdr, aouthdr))
1495 .#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section, flags_ptr)\
1496 . ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\
1497 . (abfd, scnhdr, name, section, flags_ptr))
1499 .#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
1500 . ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
1502 .#define bfd_coff_slurp_symbol_table(abfd)\
1503 . ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))
1505 .#define bfd_coff_symname_in_debug(abfd, sym)\
1506 . ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
1508 .#define bfd_coff_force_symnames_in_strings(abfd)\
1509 . (coff_backend_info (abfd)->_bfd_coff_force_symnames_in_strings)
1511 .#define bfd_coff_debug_string_prefix_length(abfd)\
1512 . (coff_backend_info (abfd)->_bfd_coff_debug_string_prefix_length)
1514 .#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\
1515 . ((coff_backend_info (abfd)->_bfd_coff_print_aux)\
1516 . (abfd, file, base, symbol, aux, indaux))
1518 .#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order,\
1519 . reloc, data, src_ptr, dst_ptr)\
1520 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
1521 . (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))
1523 .#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\
1524 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
1525 . (abfd, section, reloc, shrink, link_info))
1527 .#define bfd_coff_classify_symbol(abfd, sym)\
1528 . ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\
1531 .#define bfd_coff_compute_section_file_positions(abfd)\
1532 . ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
1535 .#define bfd_coff_start_final_link(obfd, info)\
1536 . ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\
1538 .#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
1539 . ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
1540 . (obfd, info, ibfd, o, con, rel, isyms, secs))
1541 .#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\
1542 . ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\
1543 . (abfd, sec, rel, h, sym, addendp))
1544 .#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\
1545 . ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\
1546 . (obfd, info, ibfd, sec, rel, adjustedp))
1547 .#define bfd_coff_link_add_one_symbol(info, abfd, name, flags, section,\
1548 . value, string, cp, coll, hashp)\
1549 . ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\
1550 . (info, abfd, name, flags, section, value, string, cp, coll, hashp))
1552 .#define bfd_coff_link_output_has_begun(a,p) \
1553 . ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a, p))
1554 .#define bfd_coff_final_link_postscript(a,p) \
1555 . ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a, p))
1557 .#define bfd_coff_have_print_pdata(a) \
1558 . (coff_backend_info (a)->_bfd_coff_print_pdata)
1559 .#define bfd_coff_print_pdata(a,p) \
1560 . ((coff_backend_info (a)->_bfd_coff_print_pdata) (a, p))
1564 /* See whether the magic number matches. */
1567 coff_bad_format_hook (bfd * abfd ATTRIBUTE_UNUSED, void * filehdr)
1569 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1571 if (BADMAG (*internal_f))
1574 /* If the optional header is NULL or not the correct size then
1575 quit; the only difference I can see between m88k dgux headers (MC88DMAGIC)
1576 and Intel 960 readwrite headers (I960WRMAGIC) is that the
1577 optional header is of a different size.
1579 But the mips keeps extra stuff in it's opthdr, so dont check
1582 #if defined(M88) || defined(I960)
1583 if (internal_f->f_opthdr != 0 && bfd_coff_aoutsz (abfd) != internal_f->f_opthdr)
1592 ticoff0_bad_format_hook (bfd *abfd ATTRIBUTE_UNUSED, void * filehdr)
1594 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1596 if (COFF0_BADMAG (*internal_f))
1605 ticoff1_bad_format_hook (bfd *abfd ATTRIBUTE_UNUSED, void * filehdr)
1607 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1609 if (COFF1_BADMAG (*internal_f))
1616 /* Check whether this section uses an alignment other than the
1620 coff_set_custom_section_alignment (bfd *abfd ATTRIBUTE_UNUSED,
1622 const struct coff_section_alignment_entry *alignment_table,
1623 const unsigned int table_size)
1625 const unsigned int default_alignment = COFF_DEFAULT_SECTION_ALIGNMENT_POWER;
1628 for (i = 0; i < table_size; ++i)
1630 const char *secname = bfd_get_section_name (abfd, section);
1632 if (alignment_table[i].comparison_length == (unsigned int) -1
1633 ? strcmp (alignment_table[i].name, secname) == 0
1634 : strncmp (alignment_table[i].name, secname,
1635 alignment_table[i].comparison_length) == 0)
1638 if (i >= table_size)
1641 if (alignment_table[i].default_alignment_min != COFF_ALIGNMENT_FIELD_EMPTY
1642 && default_alignment < alignment_table[i].default_alignment_min)
1645 if (alignment_table[i].default_alignment_max != COFF_ALIGNMENT_FIELD_EMPTY
1646 #if COFF_DEFAULT_SECTION_ALIGNMENT_POWER != 0
1647 && default_alignment > alignment_table[i].default_alignment_max
1652 section->alignment_power = alignment_table[i].alignment_power;
1655 /* Custom section alignment records. */
1657 static const struct coff_section_alignment_entry
1658 coff_section_alignment_table[] =
1660 #ifdef COFF_SECTION_ALIGNMENT_ENTRIES
1661 COFF_SECTION_ALIGNMENT_ENTRIES,
1663 /* There must not be any gaps between .stabstr sections. */
1664 { COFF_SECTION_NAME_PARTIAL_MATCH (".stabstr"),
1665 1, COFF_ALIGNMENT_FIELD_EMPTY, 0 },
1666 /* The .stab section must be aligned to 2**2 at most, to avoid gaps. */
1667 { COFF_SECTION_NAME_PARTIAL_MATCH (".stab"),
1668 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 },
1669 /* Similarly for the .ctors and .dtors sections. */
1670 { COFF_SECTION_NAME_EXACT_MATCH (".ctors"),
1671 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 },
1672 { COFF_SECTION_NAME_EXACT_MATCH (".dtors"),
1673 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 }
1676 static const unsigned int coff_section_alignment_table_size =
1677 sizeof coff_section_alignment_table / sizeof coff_section_alignment_table[0];
1679 /* Initialize a section structure with information peculiar to this
1680 particular implementation of COFF. */
1683 coff_new_section_hook (bfd * abfd, asection * section)
1685 combined_entry_type *native;
1688 section->alignment_power = COFF_DEFAULT_SECTION_ALIGNMENT_POWER;
1691 if (bfd_xcoff_text_align_power (abfd) != 0
1692 && strcmp (bfd_get_section_name (abfd, section), ".text") == 0)
1693 section->alignment_power = bfd_xcoff_text_align_power (abfd);
1694 if (bfd_xcoff_data_align_power (abfd) != 0
1695 && strcmp (bfd_get_section_name (abfd, section), ".data") == 0)
1696 section->alignment_power = bfd_xcoff_data_align_power (abfd);
1699 /* Set up the section symbol. */
1700 if (!_bfd_generic_new_section_hook (abfd, section))
1703 /* Allocate aux records for section symbols, to store size and
1706 @@ The 10 is a guess at a plausible maximum number of aux entries
1707 (but shouldn't be a constant). */
1708 amt = sizeof (combined_entry_type) * 10;
1709 native = bfd_zalloc (abfd, amt);
1713 /* We don't need to set up n_name, n_value, or n_scnum in the native
1714 symbol information, since they'll be overridden by the BFD symbol
1715 anyhow. However, we do need to set the type and storage class,
1716 in case this symbol winds up getting written out. The value 0
1717 for n_numaux is already correct. */
1719 native->u.syment.n_type = T_NULL;
1720 native->u.syment.n_sclass = C_STAT;
1722 coffsymbol (section->symbol)->native = native;
1724 coff_set_custom_section_alignment (abfd, section,
1725 coff_section_alignment_table,
1726 coff_section_alignment_table_size);
1731 #ifdef COFF_ALIGN_IN_SECTION_HEADER
1733 /* Set the alignment of a BFD section. */
1736 coff_set_alignment_hook (bfd * abfd ATTRIBUTE_UNUSED,
1740 struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
1744 /* Extract ALIGN from 2**ALIGN stored in section header. */
1745 for (i = 0; i < 32; i++)
1746 if ((1 << i) >= hdr->s_align)
1750 /* TI tools puts the alignment power in bits 8-11. */
1751 i = (hdr->s_flags >> 8) & 0xF ;
1753 #ifdef COFF_DECODE_ALIGNMENT
1754 i = COFF_DECODE_ALIGNMENT(hdr->s_flags);
1756 section->alignment_power = i;
1758 #ifdef coff_set_section_load_page
1759 coff_set_section_load_page (section, hdr->s_page);
1763 #else /* ! COFF_ALIGN_IN_SECTION_HEADER */
1767 coff_set_alignment_hook (bfd * abfd ATTRIBUTE_UNUSED,
1771 struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
1773 unsigned int alignment_power_const
1774 = hdr->s_flags & IMAGE_SCN_ALIGN_POWER_BIT_MASK;
1776 switch (alignment_power_const)
1778 case IMAGE_SCN_ALIGN_8192BYTES:
1779 case IMAGE_SCN_ALIGN_4096BYTES:
1780 case IMAGE_SCN_ALIGN_2048BYTES:
1781 case IMAGE_SCN_ALIGN_1024BYTES:
1782 case IMAGE_SCN_ALIGN_512BYTES:
1783 case IMAGE_SCN_ALIGN_256BYTES:
1784 case IMAGE_SCN_ALIGN_128BYTES:
1785 case IMAGE_SCN_ALIGN_64BYTES:
1786 case IMAGE_SCN_ALIGN_32BYTES:
1787 case IMAGE_SCN_ALIGN_16BYTES:
1788 case IMAGE_SCN_ALIGN_8BYTES:
1789 case IMAGE_SCN_ALIGN_4BYTES:
1790 case IMAGE_SCN_ALIGN_2BYTES:
1791 case IMAGE_SCN_ALIGN_1BYTES:
1792 section->alignment_power
1793 = IMAGE_SCN_ALIGN_POWER_NUM (alignment_power_const);
1799 /* In a PE image file, the s_paddr field holds the virtual size of a
1800 section, while the s_size field holds the raw size. We also keep
1801 the original section flag value, since not every bit can be
1802 mapped onto a generic BFD section bit. */
1803 if (coff_section_data (abfd, section) == NULL)
1805 amt = sizeof (struct coff_section_tdata);
1806 section->used_by_bfd = bfd_zalloc (abfd, amt);
1807 if (section->used_by_bfd == NULL)
1808 /* FIXME: Return error. */
1812 if (pei_section_data (abfd, section) == NULL)
1814 amt = sizeof (struct pei_section_tdata);
1815 coff_section_data (abfd, section)->tdata = bfd_zalloc (abfd, amt);
1816 if (coff_section_data (abfd, section)->tdata == NULL)
1817 /* FIXME: Return error. */
1820 pei_section_data (abfd, section)->virt_size = hdr->s_paddr;
1821 pei_section_data (abfd, section)->pe_flags = hdr->s_flags;
1823 section->lma = hdr->s_vaddr;
1825 /* Check for extended relocs. */
1826 if (hdr->s_flags & IMAGE_SCN_LNK_NRELOC_OVFL)
1828 struct external_reloc dst;
1829 struct internal_reloc n;
1830 file_ptr oldpos = bfd_tell (abfd);
1831 bfd_size_type relsz = bfd_coff_relsz (abfd);
1833 bfd_seek (abfd, (file_ptr) hdr->s_relptr, 0);
1834 if (bfd_bread (& dst, relsz, abfd) != relsz)
1837 coff_swap_reloc_in (abfd, &dst, &n);
1838 bfd_seek (abfd, oldpos, 0);
1839 section->reloc_count = hdr->s_nreloc = n.r_vaddr - 1;
1840 section->rel_filepos += relsz;
1842 else if (hdr->s_nreloc == 0xffff)
1843 (*_bfd_error_handler)
1844 ("%s: warning: claims to have 0xffff relocs, without overflow",
1845 bfd_get_filename (abfd));
1848 #undef ELIFALIGN_SET
1850 #else /* ! COFF_WITH_PE */
1853 /* We grossly abuse this function to handle XCOFF overflow headers.
1854 When we see one, we correct the reloc and line number counts in the
1855 real header, and remove the section we just created. */
1858 coff_set_alignment_hook (bfd *abfd, asection *section, void * scnhdr)
1860 struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
1863 if ((hdr->s_flags & STYP_OVRFLO) == 0)
1866 real_sec = coff_section_from_bfd_index (abfd, (int) hdr->s_nreloc);
1867 if (real_sec == NULL)
1870 real_sec->reloc_count = hdr->s_paddr;
1871 real_sec->lineno_count = hdr->s_vaddr;
1873 if (!bfd_section_removed_from_list (abfd, section))
1875 bfd_section_list_remove (abfd, section);
1876 --abfd->section_count;
1880 #else /* ! RS6000COFF_C */
1882 #define coff_set_alignment_hook \
1883 ((void (*) (bfd *, asection *, void *)) bfd_void)
1885 #endif /* ! RS6000COFF_C */
1886 #endif /* ! COFF_WITH_PE */
1887 #endif /* ! COFF_ALIGN_IN_SECTION_HEADER */
1889 #ifndef coff_mkobject
1892 coff_mkobject (bfd * abfd)
1894 coff_data_type *coff;
1895 bfd_size_type amt = sizeof (coff_data_type);
1897 abfd->tdata.coff_obj_data = bfd_zalloc (abfd, amt);
1898 if (abfd->tdata.coff_obj_data == NULL)
1900 coff = coff_data (abfd);
1901 coff->symbols = NULL;
1902 coff->conversion_table = NULL;
1903 coff->raw_syments = NULL;
1904 coff->relocbase = 0;
1905 coff->local_toc_sym_map = 0;
1907 /* make_abs_section(abfd);*/
1913 /* Create the COFF backend specific information. */
1915 #ifndef coff_mkobject_hook
1917 coff_mkobject_hook (bfd * abfd,
1919 void * aouthdr ATTRIBUTE_UNUSED)
1921 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1922 coff_data_type *coff;
1924 if (! coff_mkobject (abfd))
1927 coff = coff_data (abfd);
1929 coff->sym_filepos = internal_f->f_symptr;
1931 /* These members communicate important constants about the symbol
1932 table to GDB's symbol-reading code. These `constants'
1933 unfortunately vary among coff implementations... */
1934 coff->local_n_btmask = N_BTMASK;
1935 coff->local_n_btshft = N_BTSHFT;
1936 coff->local_n_tmask = N_TMASK;
1937 coff->local_n_tshift = N_TSHIFT;
1938 coff->local_symesz = bfd_coff_symesz (abfd);
1939 coff->local_auxesz = bfd_coff_auxesz (abfd);
1940 coff->local_linesz = bfd_coff_linesz (abfd);
1942 coff->timestamp = internal_f->f_timdat;
1944 obj_raw_syment_count (abfd) =
1945 obj_conv_table_size (abfd) =
1946 internal_f->f_nsyms;
1949 if ((internal_f->f_flags & F_SHROBJ) != 0)
1950 abfd->flags |= DYNAMIC;
1951 if (aouthdr != NULL && internal_f->f_opthdr >= bfd_coff_aoutsz (abfd))
1953 struct internal_aouthdr *internal_a =
1954 (struct internal_aouthdr *) aouthdr;
1955 struct xcoff_tdata *xcoff;
1957 xcoff = xcoff_data (abfd);
1958 # ifdef U803XTOCMAGIC
1959 xcoff->xcoff64 = internal_f->f_magic == U803XTOCMAGIC;
1963 xcoff->full_aouthdr = TRUE;
1964 xcoff->toc = internal_a->o_toc;
1965 xcoff->sntoc = internal_a->o_sntoc;
1966 xcoff->snentry = internal_a->o_snentry;
1967 bfd_xcoff_text_align_power (abfd) = internal_a->o_algntext;
1968 bfd_xcoff_data_align_power (abfd) = internal_a->o_algndata;
1969 xcoff->modtype = internal_a->o_modtype;
1970 xcoff->cputype = internal_a->o_cputype;
1971 xcoff->maxdata = internal_a->o_maxdata;
1972 xcoff->maxstack = internal_a->o_maxstack;
1977 /* Set the flags field from the COFF header read in. */
1978 if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags))
1983 /* FIXME: I'm not sure this is ever executed, since peicode.h
1984 defines coff_mkobject_hook. */
1985 if ((internal_f->f_flags & IMAGE_FILE_DEBUG_STRIPPED) == 0)
1986 abfd->flags |= HAS_DEBUG;
1993 /* Determine the machine architecture and type. FIXME: This is target
1994 dependent because the magic numbers are defined in the target
1995 dependent header files. But there is no particular need for this.
1996 If the magic numbers were moved to a separate file, this function
1997 would be target independent and would also be much more successful
1998 at linking together COFF files for different architectures. */
2001 coff_set_arch_mach_hook (bfd *abfd, void * filehdr)
2003 unsigned long machine;
2004 enum bfd_architecture arch;
2005 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
2007 /* Zero selects the default machine for an arch. */
2009 switch (internal_f->f_magic)
2011 #ifdef OR32_MAGIC_BIG
2012 case OR32_MAGIC_BIG:
2013 case OR32_MAGIC_LITTLE:
2014 arch = bfd_arch_or32;
2019 arch = bfd_arch_powerpc;
2025 case I386AIXMAGIC: /* Danbury PS/2 AIX C Compiler. */
2026 case LYNXCOFFMAGIC: /* Shadows the m68k Lynx number below, sigh. */
2027 arch = bfd_arch_i386;
2032 arch = bfd_arch_i386;
2033 machine = bfd_mach_x86_64;
2038 arch = bfd_arch_ia64;
2045 arch = bfd_arch_arm;
2046 machine = bfd_arm_get_mach_from_notes (abfd, ARM_NOTE_SECTION);
2047 if (machine == bfd_mach_arm_unknown)
2049 switch (internal_f->f_flags & F_ARM_ARCHITECTURE_MASK)
2051 case F_ARM_2: machine = bfd_mach_arm_2; break;
2052 case F_ARM_2a: machine = bfd_mach_arm_2a; break;
2053 case F_ARM_3: machine = bfd_mach_arm_3; break;
2055 case F_ARM_3M: machine = bfd_mach_arm_3M; break;
2056 case F_ARM_4: machine = bfd_mach_arm_4; break;
2057 case F_ARM_4T: machine = bfd_mach_arm_4T; break;
2058 /* The COFF header does not have enough bits available
2059 to cover all the different ARM architectures. So
2060 we interpret F_ARM_5, the highest flag value to mean
2061 "the highest ARM architecture known to BFD" which is
2062 currently the XScale. */
2063 case F_ARM_5: machine = bfd_mach_arm_XScale; break;
2071 #ifdef MC68KBCSMAGIC
2074 #ifdef APOLLOM68KMAGIC
2075 case APOLLOM68KMAGIC:
2077 #ifdef LYNXCOFFMAGIC
2080 arch = bfd_arch_m68k;
2081 machine = bfd_mach_m68020;
2086 arch = bfd_arch_maxq;
2087 switch (internal_f->f_flags & F_MACHMASK)
2090 machine = bfd_mach_maxq10;
2093 machine = bfd_mach_maxq20;
2104 arch = bfd_arch_m88k;
2110 arch = bfd_arch_z80;
2111 switch (internal_f->f_flags & F_MACHMASK)
2114 case bfd_mach_z80strict << 12:
2115 case bfd_mach_z80 << 12:
2116 case bfd_mach_z80full << 12:
2117 case bfd_mach_r800 << 12:
2118 machine = ((unsigned)internal_f->f_flags & F_MACHMASK) >> 12;
2127 arch = bfd_arch_z8k;
2128 switch (internal_f->f_flags & F_MACHMASK)
2131 machine = bfd_mach_z8001;
2134 machine = bfd_mach_z8002;
2143 arch = bfd_arch_i860;
2150 arch = bfd_arch_i960;
2151 switch (F_I960TYPE & internal_f->f_flags)
2155 machine = bfd_mach_i960_core;
2158 machine = bfd_mach_i960_kb_sb;
2161 machine = bfd_mach_i960_mc;
2164 machine = bfd_mach_i960_xa;
2167 machine = bfd_mach_i960_ca;
2170 machine = bfd_mach_i960_ka_sa;
2173 machine = bfd_mach_i960_jx;
2176 machine = bfd_mach_i960_hx;
2195 if (xcoff_data (abfd)->cputype != -1)
2196 cputype = xcoff_data (abfd)->cputype & 0xff;
2199 /* We did not get a value from the a.out header. If the
2200 file has not been stripped, we may be able to get the
2201 architecture information from the first symbol, if it
2202 is a .file symbol. */
2203 if (obj_raw_syment_count (abfd) == 0)
2208 struct internal_syment sym;
2209 bfd_size_type amt = bfd_coff_symesz (abfd);
2211 buf = bfd_malloc (amt);
2212 if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0
2213 || bfd_bread (buf, amt, abfd) != amt)
2218 bfd_coff_swap_sym_in (abfd, buf, & sym);
2219 if (sym.n_sclass == C_FILE)
2220 cputype = sym.n_type & 0xff;
2227 /* FIXME: We don't handle all cases here. */
2232 arch = bfd_xcoff_architecture (abfd);
2233 machine = bfd_xcoff_machine (abfd);
2237 arch = bfd_arch_powerpc;
2238 machine = bfd_mach_ppc_601;
2240 case 2: /* 64 bit PowerPC */
2241 arch = bfd_arch_powerpc;
2242 machine = bfd_mach_ppc_620;
2245 arch = bfd_arch_powerpc;
2246 machine = bfd_mach_ppc;
2249 arch = bfd_arch_rs6000;
2250 machine = bfd_mach_rs6k;
2259 arch = bfd_arch_we32k;
2265 arch = bfd_arch_h8300;
2266 machine = bfd_mach_h8300;
2267 /* !! FIXME this probably isn't the right place for this. */
2268 abfd->flags |= BFD_IS_RELAXABLE;
2274 arch = bfd_arch_h8300;
2275 machine = bfd_mach_h8300h;
2276 /* !! FIXME this probably isn't the right place for this. */
2277 abfd->flags |= BFD_IS_RELAXABLE;
2283 arch = bfd_arch_h8300;
2284 machine = bfd_mach_h8300s;
2285 /* !! FIXME this probably isn't the right place for this. */
2286 abfd->flags |= BFD_IS_RELAXABLE;
2292 arch = bfd_arch_h8300;
2293 machine = bfd_mach_h8300hn;
2294 /* !! FIXME this probably isn't the right place for this. */
2295 abfd->flags |= BFD_IS_RELAXABLE;
2301 arch = bfd_arch_h8300;
2302 machine = bfd_mach_h8300sn;
2303 /* !! FIXME this probably isn't the right place for this. */
2304 abfd->flags |= BFD_IS_RELAXABLE;
2308 #ifdef SH_ARCH_MAGIC_BIG
2309 case SH_ARCH_MAGIC_BIG:
2310 case SH_ARCH_MAGIC_LITTLE:
2312 case SH_ARCH_MAGIC_WINCE:
2318 #ifdef MIPS_ARCH_MAGIC_WINCE
2319 case MIPS_ARCH_MAGIC_WINCE:
2320 arch = bfd_arch_mips;
2326 arch = bfd_arch_h8500;
2332 #ifdef LYNXCOFFMAGIC
2335 arch = bfd_arch_sparc;
2341 arch = bfd_arch_tic30;
2346 #ifdef TICOFF_TARGET_ARCH
2347 /* This TI COFF section should be used by all new TI COFF v0 targets. */
2349 arch = TICOFF_TARGET_ARCH;
2350 machine = TICOFF_TARGET_MACHINE_GET (internal_f->f_flags);
2356 /* This TI COFF section should be used by all new TI COFF v1/2 targets. */
2357 /* TI COFF1 and COFF2 use the target_id field to specify which arch. */
2360 switch (internal_f->f_target_id)
2364 arch = TICOFF_TARGET_ARCH;
2365 machine = TICOFF_TARGET_MACHINE_GET (internal_f->f_flags);
2369 arch = bfd_arch_obscure;
2370 (*_bfd_error_handler)
2371 (_("Unrecognized TI COFF target id '0x%x'"),
2372 internal_f->f_target_id);
2378 #ifdef TIC80_ARCH_MAGIC
2379 case TIC80_ARCH_MAGIC:
2380 arch = bfd_arch_tic80;
2386 arch = bfd_arch_mcore;
2392 arch = bfd_arch_w65;
2396 default: /* Unreadable input file type. */
2397 arch = bfd_arch_obscure;
2401 bfd_default_set_arch_mach (abfd, arch, machine);
2405 #ifdef SYMNAME_IN_DEBUG
2408 symname_in_debug_hook (bfd * abfd ATTRIBUTE_UNUSED, struct internal_syment *sym)
2410 return SYMNAME_IN_DEBUG (sym) != 0;
2415 #define symname_in_debug_hook \
2416 (bfd_boolean (*) (bfd *, struct internal_syment *)) bfd_false
2423 #define FORCE_SYMNAMES_IN_STRINGS
2426 /* Handle the csect auxent of a C_EXT, C_AIX_WEAKEXT or C_HIDEXT symbol. */
2429 coff_pointerize_aux_hook (bfd *abfd ATTRIBUTE_UNUSED,
2430 combined_entry_type *table_base,
2431 combined_entry_type *symbol,
2432 unsigned int indaux,
2433 combined_entry_type *aux)
2435 int class = symbol->u.syment.n_sclass;
2437 if (CSECT_SYM_P (class)
2438 && indaux + 1 == symbol->u.syment.n_numaux)
2440 if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) == XTY_LD)
2442 aux->u.auxent.x_csect.x_scnlen.p =
2443 table_base + aux->u.auxent.x_csect.x_scnlen.l;
2444 aux->fix_scnlen = 1;
2447 /* Return TRUE to indicate that the caller should not do any
2448 further work on this auxent. */
2452 /* Return FALSE to indicate that this auxent should be handled by
2460 /* We don't want to pointerize bal entries. */
2463 coff_pointerize_aux_hook (bfd *abfd ATTRIBUTE_UNUSED,
2464 combined_entry_type *table_base ATTRIBUTE_UNUSED,
2465 combined_entry_type *symbol,
2466 unsigned int indaux,
2467 combined_entry_type *aux ATTRIBUTE_UNUSED)
2469 /* Return TRUE if we don't want to pointerize this aux entry, which
2470 is the case for the lastfirst aux entry for a C_LEAFPROC symbol. */
2472 && (symbol->u.syment.n_sclass == C_LEAFPROC
2473 || symbol->u.syment.n_sclass == C_LEAFSTAT
2474 || symbol->u.syment.n_sclass == C_LEAFEXT));
2479 #define coff_pointerize_aux_hook 0
2482 #endif /* ! RS6000COFF_C */
2484 /* Print an aux entry. This returns TRUE if it has printed it. */
2487 coff_print_aux (bfd *abfd ATTRIBUTE_UNUSED,
2488 FILE *file ATTRIBUTE_UNUSED,
2489 combined_entry_type *table_base ATTRIBUTE_UNUSED,
2490 combined_entry_type *symbol ATTRIBUTE_UNUSED,
2491 combined_entry_type *aux ATTRIBUTE_UNUSED,
2492 unsigned int indaux ATTRIBUTE_UNUSED)
2495 if (CSECT_SYM_P (symbol->u.syment.n_sclass)
2496 && indaux + 1 == symbol->u.syment.n_numaux)
2498 /* This is a csect entry. */
2499 fprintf (file, "AUX ");
2500 if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) != XTY_LD)
2502 BFD_ASSERT (! aux->fix_scnlen);
2504 fprintf (file, "val %5lld",
2505 (long long) aux->u.auxent.x_csect.x_scnlen.l);
2507 fprintf (file, "val %5ld", (long) aux->u.auxent.x_csect.x_scnlen.l);
2512 fprintf (file, "indx ");
2513 if (! aux->fix_scnlen)
2515 fprintf (file, "%4lld",
2516 (long long) aux->u.auxent.x_csect.x_scnlen.l);
2518 fprintf (file, "%4ld", (long) aux->u.auxent.x_csect.x_scnlen.l);
2521 fprintf (file, "%4ld",
2522 (long) (aux->u.auxent.x_csect.x_scnlen.p - table_base));
2525 " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u",
2526 aux->u.auxent.x_csect.x_parmhash,
2527 (unsigned int) aux->u.auxent.x_csect.x_snhash,
2528 SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp),
2529 SMTYP_ALIGN (aux->u.auxent.x_csect.x_smtyp),
2530 (unsigned int) aux->u.auxent.x_csect.x_smclas,
2531 aux->u.auxent.x_csect.x_stab,
2532 (unsigned int) aux->u.auxent.x_csect.x_snstab);
2537 /* Return FALSE to indicate that no special action was taken. */
2545 To write relocations, the back end steps though the
2546 canonical relocation table and create an
2547 @code{internal_reloc}. The symbol index to use is removed from
2548 the @code{offset} field in the symbol table supplied. The
2549 address comes directly from the sum of the section base
2550 address and the relocation offset; the type is dug directly
2551 from the howto field. Then the @code{internal_reloc} is
2552 swapped into the shape of an @code{external_reloc} and written
2560 /* AUX's ld wants relocations to be sorted. */
2562 compare_arelent_ptr (const void * x, const void * y)
2564 const arelent **a = (const arelent **) x;
2565 const arelent **b = (const arelent **) y;
2566 bfd_size_type aadr = (*a)->address;
2567 bfd_size_type badr = (*b)->address;
2569 return (aadr < badr ? -1 : badr < aadr ? 1 : 0);
2572 #endif /* TARG_AUX */
2575 coff_write_relocs (bfd * abfd, int first_undef)
2579 for (s = abfd->sections; s != NULL; s = s->next)
2582 struct external_reloc dst;
2589 /* Sort relocations before we write them out. */
2592 amt = s->reloc_count;
2593 amt *= sizeof (arelent *);
2594 p = bfd_malloc (amt);
2595 if (p == NULL && s->reloc_count > 0)
2597 memcpy (p, s->orelocation, (size_t) amt);
2598 qsort (p, s->reloc_count, sizeof (arelent *), compare_arelent_ptr);
2602 if (bfd_seek (abfd, s->rel_filepos, SEEK_SET) != 0)
2606 if (obj_pe (abfd) && s->reloc_count >= 0xffff)
2608 /* Encode real count here as first reloc. */
2609 struct internal_reloc n;
2611 memset (& n, 0, sizeof (n));
2612 /* Add one to count *this* reloc (grr). */
2613 n.r_vaddr = s->reloc_count + 1;
2614 coff_swap_reloc_out (abfd, &n, &dst);
2615 if (bfd_bwrite (& dst, (bfd_size_type) bfd_coff_relsz (abfd),
2616 abfd) != bfd_coff_relsz (abfd))
2621 for (i = 0; i < s->reloc_count; i++)
2623 struct internal_reloc n;
2626 memset (& n, 0, sizeof (n));
2628 /* Now we've renumbered the symbols we know where the
2629 undefined symbols live in the table. Check the reloc
2630 entries for symbols who's output bfd isn't the right one.
2631 This is because the symbol was undefined (which means
2632 that all the pointers are never made to point to the same
2633 place). This is a bad thing,'cause the symbols attached
2634 to the output bfd are indexed, so that the relocation
2635 entries know which symbol index they point to. So we
2636 have to look up the output symbol here. */
2638 if (q->sym_ptr_ptr[0]->the_bfd != abfd)
2641 const char *sname = q->sym_ptr_ptr[0]->name;
2642 asymbol **outsyms = abfd->outsymbols;
2644 for (j = first_undef; outsyms[j]; j++)
2646 const char *intable = outsyms[j]->name;
2648 if (strcmp (intable, sname) == 0)
2650 /* Got a hit, so repoint the reloc. */
2651 q->sym_ptr_ptr = outsyms + j;
2657 n.r_vaddr = q->address + s->vma;
2660 /* The 29k const/consth reloc pair is a real kludge. The consth
2661 part doesn't have a symbol; it has an offset. So rebuilt
2663 if (q->howto->type == R_IHCONST)
2664 n.r_symndx = q->addend;
2669 #ifdef SECTION_RELATIVE_ABSOLUTE_SYMBOL_P
2670 if (SECTION_RELATIVE_ABSOLUTE_SYMBOL_P (q, s))
2672 if ((*q->sym_ptr_ptr)->section == bfd_abs_section_ptr
2673 && ((*q->sym_ptr_ptr)->flags & BSF_SECTION_SYM) != 0)
2675 /* This is a relocation relative to the absolute symbol. */
2679 n.r_symndx = get_index ((*(q->sym_ptr_ptr)));
2680 /* Check to see if the symbol reloc points to a symbol
2681 we don't have in our symbol table. */
2682 if (n.r_symndx > obj_conv_table_size (abfd))
2684 bfd_set_error (bfd_error_bad_value);
2685 _bfd_error_handler (_("%B: reloc against a non-existant symbol index: %ld"),
2692 #ifdef SWAP_OUT_RELOC_OFFSET
2693 n.r_offset = q->addend;
2697 /* Work out reloc type from what is required. */
2698 SELECT_RELOC (n, q->howto);
2700 n.r_type = q->howto->type;
2702 coff_swap_reloc_out (abfd, &n, &dst);
2704 if (bfd_bwrite (& dst, (bfd_size_type) bfd_coff_relsz (abfd),
2705 abfd) != bfd_coff_relsz (abfd))
2718 /* Set flags and magic number of a coff file from architecture and machine
2719 type. Result is TRUE if we can represent the arch&type, FALSE if not. */
2722 coff_set_flags (bfd * abfd,
2723 unsigned int *magicp ATTRIBUTE_UNUSED,
2724 unsigned short *flagsp ATTRIBUTE_UNUSED)
2726 switch (bfd_get_arch (abfd))
2731 switch (bfd_get_mach (abfd))
2734 case bfd_mach_z80strict:
2736 case bfd_mach_z80full:
2738 *flagsp = bfd_get_mach (abfd) << 12;
2750 switch (bfd_get_mach (abfd))
2752 case bfd_mach_z8001: *flagsp = F_Z8001; break;
2753 case bfd_mach_z8002: *flagsp = F_Z8002; break;
2754 default: return FALSE;
2765 *magicp = I960ROMAGIC;
2767 switch (bfd_get_mach (abfd))
2769 case bfd_mach_i960_core: flags = F_I960CORE; break;
2770 case bfd_mach_i960_kb_sb: flags = F_I960KB; break;
2771 case bfd_mach_i960_mc: flags = F_I960MC; break;
2772 case bfd_mach_i960_xa: flags = F_I960XA; break;
2773 case bfd_mach_i960_ca: flags = F_I960CA; break;
2774 case bfd_mach_i960_ka_sa: flags = F_I960KA; break;
2775 case bfd_mach_i960_jx: flags = F_I960JX; break;
2776 case bfd_mach_i960_hx: flags = F_I960HX; break;
2777 default: return FALSE;
2786 case bfd_arch_tic30:
2787 *magicp = TIC30MAGIC;
2791 #ifdef TICOFF_DEFAULT_MAGIC
2792 case TICOFF_TARGET_ARCH:
2793 /* If there's no indication of which version we want, use the default. */
2795 *magicp = TICOFF_DEFAULT_MAGIC;
2798 /* We may want to output in a different COFF version. */
2799 switch (abfd->xvec->name[4])
2802 *magicp = TICOFF0MAGIC;
2805 *magicp = TICOFF1MAGIC;
2808 *magicp = TICOFF2MAGIC;
2814 TICOFF_TARGET_MACHINE_SET (flagsp, bfd_get_mach (abfd));
2818 #ifdef TIC80_ARCH_MAGIC
2819 case bfd_arch_tic80:
2820 *magicp = TIC80_ARCH_MAGIC;
2827 * magicp = ARMPEMAGIC;
2829 * magicp = ARMMAGIC;
2832 if (APCS_SET (abfd))
2834 if (APCS_26_FLAG (abfd))
2835 * flagsp |= F_APCS26;
2837 if (APCS_FLOAT_FLAG (abfd))
2838 * flagsp |= F_APCS_FLOAT;
2840 if (PIC_FLAG (abfd))
2843 if (INTERWORK_SET (abfd) && INTERWORK_FLAG (abfd))
2844 * flagsp |= F_INTERWORK;
2845 switch (bfd_get_mach (abfd))
2847 case bfd_mach_arm_2: * flagsp |= F_ARM_2; break;
2848 case bfd_mach_arm_2a: * flagsp |= F_ARM_2a; break;
2849 case bfd_mach_arm_3: * flagsp |= F_ARM_3; break;
2850 case bfd_mach_arm_3M: * flagsp |= F_ARM_3M; break;
2851 case bfd_mach_arm_4: * flagsp |= F_ARM_4; break;
2852 case bfd_mach_arm_4T: * flagsp |= F_ARM_4T; break;
2853 case bfd_mach_arm_5: * flagsp |= F_ARM_5; break;
2854 /* FIXME: we do not have F_ARM vaues greater than F_ARM_5.
2855 See also the comment in coff_set_arch_mach_hook(). */
2856 case bfd_mach_arm_5T: * flagsp |= F_ARM_5; break;
2857 case bfd_mach_arm_5TE: * flagsp |= F_ARM_5; break;
2858 case bfd_mach_arm_XScale: * flagsp |= F_ARM_5; break;
2864 case bfd_arch_powerpc:
2869 #if defined(I386MAGIC) || defined(AMD64MAGIC)
2871 #if defined(I386MAGIC)
2872 *magicp = I386MAGIC;
2875 /* Just overwrite the usual value if we're doing Lynx. */
2876 *magicp = LYNXCOFFMAGIC;
2878 #if defined AMD64MAGIC
2879 *magicp = AMD64MAGIC;
2886 *magicp = I860MAGIC;
2892 *magicp = IA64MAGIC;
2898 #ifdef APOLLOM68KMAGIC
2899 *magicp = APOLLO_COFF_VERSION_NUMBER;
2901 /* NAMES_HAVE_UNDERSCORE may be defined by coff-u68k.c. */
2902 #ifdef NAMES_HAVE_UNDERSCORE
2903 *magicp = MC68KBCSMAGIC;
2905 *magicp = MC68MAGIC;
2909 /* Just overwrite the usual value if we're doing Lynx. */
2910 *magicp = LYNXCOFFMAGIC;
2917 *magicp = MC88OMAGIC;
2922 case bfd_arch_h8300:
2923 switch (bfd_get_mach (abfd))
2925 case bfd_mach_h8300: *magicp = H8300MAGIC; return TRUE;
2926 case bfd_mach_h8300h: *magicp = H8300HMAGIC; return TRUE;
2927 case bfd_mach_h8300s: *magicp = H8300SMAGIC; return TRUE;
2928 case bfd_mach_h8300hn: *magicp = H8300HNMAGIC; return TRUE;
2929 case bfd_mach_h8300sn: *magicp = H8300SNMAGIC; return TRUE;
2935 #ifdef SH_ARCH_MAGIC_BIG
2937 #ifdef COFF_IMAGE_WITH_PE
2938 *magicp = SH_ARCH_MAGIC_WINCE;
2940 if (bfd_big_endian (abfd))
2941 *magicp = SH_ARCH_MAGIC_BIG;
2943 *magicp = SH_ARCH_MAGIC_LITTLE;
2948 #ifdef MIPS_ARCH_MAGIC_WINCE
2950 *magicp = MIPS_ARCH_MAGIC_WINCE;
2955 case bfd_arch_sparc:
2956 *magicp = SPARCMAGIC;
2958 /* Just overwrite the usual value if we're doing Lynx. */
2959 *magicp = LYNXCOFFMAGIC;
2965 case bfd_arch_h8500:
2966 *magicp = H8500MAGIC;
2972 case bfd_arch_we32k:
2973 *magicp = WE32KMAGIC;
2978 case bfd_arch_rs6000:
2980 case bfd_arch_powerpc:
2982 BFD_ASSERT (bfd_get_flavour (abfd) == bfd_target_xcoff_flavour);
2983 *magicp = bfd_xcoff_magic_number (abfd);
2988 case bfd_arch_mcore:
2989 * magicp = MCOREMAGIC;
2999 #ifdef OR32_MAGIC_BIG
3001 if (bfd_big_endian (abfd))
3002 * magicp = OR32_MAGIC_BIG;
3004 * magicp = OR32_MAGIC_LITTLE;
3010 * magicp = MAXQ20MAGIC;
3011 switch (bfd_get_mach (abfd))
3013 case bfd_mach_maxq10: * flagsp = F_MAXQ10; return TRUE;
3014 case bfd_mach_maxq20: * flagsp = F_MAXQ20; return TRUE;
3015 default: return FALSE;
3019 default: /* Unknown architecture. */
3020 /* Fall through to "return FALSE" below, to avoid
3021 "statement never reached" errors on the one below. */
3029 coff_set_arch_mach (bfd * abfd,
3030 enum bfd_architecture arch,
3031 unsigned long machine)
3034 unsigned short dummy2;
3036 if (! bfd_default_set_arch_mach (abfd, arch, machine))
3039 if (arch != bfd_arch_unknown
3040 && ! coff_set_flags (abfd, &dummy1, &dummy2))
3041 return FALSE; /* We can't represent this type. */
3043 return TRUE; /* We're easy... */
3046 #ifdef COFF_IMAGE_WITH_PE
3048 /* This is used to sort sections by VMA, as required by PE image
3052 sort_by_secaddr (const void * arg1, const void * arg2)
3054 const asection *a = *(const asection **) arg1;
3055 const asection *b = *(const asection **) arg2;
3057 if (a->vma < b->vma)
3059 else if (a->vma > b->vma)
3065 #endif /* COFF_IMAGE_WITH_PE */
3067 /* Calculate the file position for each section. */
3070 #define ALIGN_SECTIONS_IN_FILE
3072 #if defined(TIC80COFF) || defined(TICOFF)
3073 #undef ALIGN_SECTIONS_IN_FILE
3077 coff_compute_section_file_positions (bfd * abfd)
3080 asection *previous = NULL;
3081 file_ptr sofar = bfd_coff_filhsz (abfd);
3082 bfd_boolean align_adjust;
3083 #ifdef ALIGN_SECTIONS_IN_FILE
3088 /* On XCOFF, if we have symbols, set up the .debug section. */
3089 if (bfd_get_symcount (abfd) > 0)
3092 bfd_size_type i, symcount;
3096 symcount = bfd_get_symcount (abfd);
3097 for (symp = abfd->outsymbols, i = 0; i < symcount; symp++, i++)
3099 coff_symbol_type *cf;
3101 cf = coff_symbol_from (abfd, *symp);
3103 && cf->native != NULL
3104 && SYMNAME_IN_DEBUG (&cf->native->u.syment))
3108 len = strlen (bfd_asymbol_name (*symp));
3109 if (len > SYMNMLEN || bfd_coff_force_symnames_in_strings (abfd))
3110 sz += len + 1 + bfd_coff_debug_string_prefix_length (abfd);
3117 dsec = bfd_make_section_old_way (abfd, DOT_DEBUG);
3121 dsec->flags |= SEC_HAS_CONTENTS;
3126 #ifdef COFF_IMAGE_WITH_PE
3129 if (coff_data (abfd)->link_info)
3131 page_size = pe_data (abfd)->pe_opthdr.FileAlignment;
3133 /* If no file alignment has been set, default to one.
3134 This repairs 'ld -r' for arm-wince-pe target. */
3139 page_size = PE_DEF_FILE_ALIGNMENT;
3141 #ifdef COFF_PAGE_SIZE
3142 int page_size = COFF_PAGE_SIZE;
3146 if (bfd_get_start_address (abfd))
3147 /* A start address may have been added to the original file. In this
3148 case it will need an optional header to record it. */
3149 abfd->flags |= EXEC_P;
3151 if (abfd->flags & EXEC_P)
3152 sofar += bfd_coff_aoutsz (abfd);
3154 else if (xcoff_data (abfd)->full_aouthdr)
3155 sofar += bfd_coff_aoutsz (abfd);
3157 sofar += SMALL_AOUTSZ;
3160 sofar += abfd->section_count * bfd_coff_scnhsz (abfd);
3163 /* XCOFF handles overflows in the reloc and line number count fields
3164 by allocating a new section header to hold the correct counts. */
3165 for (current = abfd->sections; current != NULL; current = current->next)
3166 if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
3167 sofar += bfd_coff_scnhsz (abfd);
3170 #ifdef COFF_IMAGE_WITH_PE
3172 /* PE requires the sections to be in memory order when listed in
3173 the section headers. It also does not like empty loadable
3174 sections. The sections apparently do not have to be in the
3175 right order in the image file itself, but we do need to get the
3176 target_index values right. */
3179 asection **section_list;
3185 for (current = abfd->sections; current != NULL; current = current->next)
3188 /* We allocate an extra cell to simplify the final loop. */
3189 amt = sizeof (struct asection *) * (count + 1);
3190 section_list = bfd_malloc (amt);
3191 if (section_list == NULL)
3195 for (current = abfd->sections; current != NULL; current = current->next)
3197 section_list[i] = current;
3200 section_list[i] = NULL;
3202 qsort (section_list, count, sizeof (asection *), sort_by_secaddr);
3204 /* Rethread the linked list into sorted order; at the same time,
3205 assign target_index values. */
3207 abfd->sections = NULL;
3208 abfd->section_last = NULL;
3209 for (i = 0; i < count; i++)
3211 current = section_list[i];
3212 bfd_section_list_append (abfd, current);
3214 /* Later, if the section has zero size, we'll be throwing it
3215 away, so we don't want to number it now. Note that having
3216 a zero size and having real contents are different
3217 concepts: .bss has no contents, but (usually) non-zero
3219 if (current->size == 0)
3221 /* Discard. However, it still might have (valid) symbols
3222 in it, so arbitrarily set it to section 1 (indexing is
3223 1-based here; usually .text). __end__ and other
3224 contents of .endsection really have this happen.
3225 FIXME: This seems somewhat dubious. */
3226 current->target_index = 1;
3229 current->target_index = target_index++;
3232 free (section_list);
3234 #else /* ! COFF_IMAGE_WITH_PE */
3236 /* Set the target_index field. */
3240 for (current = abfd->sections; current != NULL; current = current->next)
3241 current->target_index = target_index++;
3243 #endif /* ! COFF_IMAGE_WITH_PE */
3245 align_adjust = FALSE;
3246 for (current = abfd->sections;
3248 current = current->next)
3250 #ifdef COFF_IMAGE_WITH_PE
3251 /* With PE we have to pad each section to be a multiple of its
3252 page size too, and remember both sizes. */
3253 if (coff_section_data (abfd, current) == NULL)
3255 bfd_size_type amt = sizeof (struct coff_section_tdata);
3257 current->used_by_bfd = bfd_zalloc (abfd, amt);
3258 if (current->used_by_bfd == NULL)
3261 if (pei_section_data (abfd, current) == NULL)
3263 bfd_size_type amt = sizeof (struct pei_section_tdata);
3265 coff_section_data (abfd, current)->tdata = bfd_zalloc (abfd, amt);
3266 if (coff_section_data (abfd, current)->tdata == NULL)
3269 if (pei_section_data (abfd, current)->virt_size == 0)
3270 pei_section_data (abfd, current)->virt_size = current->size;
3273 /* Only deal with sections which have contents. */
3274 if (!(current->flags & SEC_HAS_CONTENTS))
3277 #ifdef COFF_IMAGE_WITH_PE
3278 /* Make sure we skip empty sections in a PE image. */
3279 if (current->size == 0)
3283 /* Align the sections in the file to the same boundary on
3284 which they are aligned in virtual memory. I960 doesn't
3285 do this (FIXME) so we can stay in sync with Intel. 960
3286 doesn't yet page from files... */
3287 #ifdef ALIGN_SECTIONS_IN_FILE
3288 if ((abfd->flags & EXEC_P) != 0)
3290 /* Make sure this section is aligned on the right boundary - by
3291 padding the previous section up if necessary. */
3295 /* AIX loader checks the text section alignment of (vma - filepos)
3296 So even though the filepos may be aligned wrt the o_algntext, for
3297 AIX executables, this check fails. This shows up when a native
3298 AIX executable is stripped with gnu strip because the default vma
3299 of native is 0x10000150 but default for gnu is 0x10000140. Gnu
3300 stripped gnu excutable passes this check because the filepos is
3301 0x0140. This problem also show up with 64 bit shared objects. The
3302 data section must also be aligned. */
3303 if (!strcmp (current->name, _TEXT)
3304 || !strcmp (current->name, _DATA))
3309 sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
3311 align = 1 << current->alignment_power;
3312 pad = abs (current->vma - sofar) % align;
3323 sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
3326 if (previous != NULL)
3327 previous->size += sofar - old_sofar;
3332 /* In demand paged files the low order bits of the file offset
3333 must match the low order bits of the virtual address. */
3334 #ifdef COFF_PAGE_SIZE
3335 if ((abfd->flags & D_PAGED) != 0
3336 && (current->flags & SEC_ALLOC) != 0)
3337 sofar += (current->vma - (bfd_vma) sofar) % page_size;
3339 current->filepos = sofar;
3341 #ifdef COFF_IMAGE_WITH_PE
3342 /* Set the padded size. */
3343 current->size = (current->size + page_size -1) & -page_size;
3346 sofar += current->size;
3348 #ifdef ALIGN_SECTIONS_IN_FILE
3349 /* Make sure that this section is of the right size too. */
3350 if ((abfd->flags & EXEC_P) == 0)
3352 bfd_size_type old_size;
3354 old_size = current->size;
3355 current->size = BFD_ALIGN (current->size,
3356 1 << current->alignment_power);
3357 align_adjust = current->size != old_size;
3358 sofar += current->size - old_size;
3363 sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
3364 align_adjust = sofar != old_sofar;
3365 current->size += sofar - old_sofar;
3369 #ifdef COFF_IMAGE_WITH_PE
3370 /* For PE we need to make sure we pad out to the aligned
3371 size, in case the caller only writes out data to the
3373 if (pei_section_data (abfd, current)->virt_size < current->size)
3374 align_adjust = TRUE;
3378 /* Force .lib sections to start at zero. The vma is then
3379 incremented in coff_set_section_contents. This is right for
3381 if (strcmp (current->name, _LIB) == 0)
3382 bfd_set_section_vma (abfd, current, 0);
3388 /* It is now safe to write to the output file. If we needed an
3389 alignment adjustment for the last section, then make sure that
3390 there is a byte at offset sofar. If there are no symbols and no
3391 relocs, then nothing follows the last section. If we don't force
3392 the last byte out, then the file may appear to be truncated. */
3398 if (bfd_seek (abfd, sofar - 1, SEEK_SET) != 0
3399 || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1)
3403 /* Make sure the relocations are aligned. We don't need to make
3404 sure that this byte exists, because it will only matter if there
3405 really are relocs. */
3406 sofar = BFD_ALIGN (sofar, 1 << COFF_DEFAULT_SECTION_ALIGNMENT_POWER);
3408 obj_relocbase (abfd) = sofar;
3409 abfd->output_has_begun = TRUE;
3414 #ifdef COFF_IMAGE_WITH_PE
3416 static unsigned int pelength;
3417 static unsigned int peheader;
3420 coff_read_word (bfd *abfd, unsigned int *value)
3425 status = bfd_bread (b, (bfd_size_type) 2, abfd);
3433 *value = (unsigned int) b[0];
3435 *value = (unsigned int) (b[0] + (b[1] << 8));
3437 pelength += (unsigned int) status;
3443 coff_compute_checksum (bfd *abfd)
3445 bfd_boolean more_data;
3452 filepos = (file_ptr) 0;
3456 if (bfd_seek (abfd, filepos, SEEK_SET) != 0)
3459 more_data = coff_read_word (abfd, &value);
3461 total = 0xffff & (total + (total >> 0x10));
3466 return (0xffff & (total + (total >> 0x10)));
3470 coff_apply_checksum (bfd *abfd)
3472 unsigned int computed;
3473 unsigned int checksum = 0;
3475 if (bfd_seek (abfd, 0x3c, SEEK_SET) != 0)
3478 if (!coff_read_word (abfd, &peheader))
3481 if (bfd_seek (abfd, peheader + 0x58, SEEK_SET) != 0)
3485 bfd_bwrite (&checksum, (bfd_size_type) 4, abfd);
3487 if (bfd_seek (abfd, peheader, SEEK_SET) != 0)
3490 computed = coff_compute_checksum (abfd);
3492 checksum = computed + pelength;
3494 if (bfd_seek (abfd, peheader + 0x58, SEEK_SET) != 0)
3497 bfd_bwrite (&checksum, (bfd_size_type) 4, abfd);
3502 #endif /* COFF_IMAGE_WITH_PE */
3505 coff_write_object_contents (bfd * abfd)
3508 bfd_boolean hasrelocs = FALSE;
3509 bfd_boolean haslinno = FALSE;
3510 bfd_boolean hasdebug = FALSE;
3512 file_ptr reloc_base;
3513 file_ptr lineno_base;
3515 unsigned long reloc_size = 0, reloc_count = 0;
3516 unsigned long lnno_size = 0;
3517 bfd_boolean long_section_names;
3518 asection *text_sec = NULL;
3519 asection *data_sec = NULL;
3520 asection *bss_sec = NULL;
3521 struct internal_filehdr internal_f;
3522 struct internal_aouthdr internal_a;
3523 #ifdef COFF_LONG_SECTION_NAMES
3524 size_t string_size = STRING_SIZE_SIZE;
3527 bfd_set_error (bfd_error_system_call);
3529 /* Make a pass through the symbol table to count line number entries and
3530 put them into the correct asections. */
3531 lnno_size = coff_count_linenumbers (abfd) * bfd_coff_linesz (abfd);
3533 if (! abfd->output_has_begun)
3535 if (! coff_compute_section_file_positions (abfd))
3539 reloc_base = obj_relocbase (abfd);
3541 /* Work out the size of the reloc and linno areas. */
3543 for (current = abfd->sections; current != NULL; current =
3547 /* We store the actual reloc count in the first reloc's addr. */
3548 if (obj_pe (abfd) && current->reloc_count >= 0xffff)
3551 reloc_count += current->reloc_count;
3554 reloc_size = reloc_count * bfd_coff_relsz (abfd);
3556 lineno_base = reloc_base + reloc_size;
3557 sym_base = lineno_base + lnno_size;
3559 /* Indicate in each section->line_filepos its actual file address. */
3560 for (current = abfd->sections; current != NULL; current =
3563 if (current->lineno_count)
3565 current->line_filepos = lineno_base;
3566 current->moving_line_filepos = lineno_base;
3567 lineno_base += current->lineno_count * bfd_coff_linesz (abfd);
3570 current->line_filepos = 0;
3572 if (current->reloc_count)
3574 current->rel_filepos = reloc_base;
3575 reloc_base += current->reloc_count * bfd_coff_relsz (abfd);
3577 /* Extra reloc to hold real count. */
3578 if (obj_pe (abfd) && current->reloc_count >= 0xffff)
3579 reloc_base += bfd_coff_relsz (abfd);
3583 current->rel_filepos = 0;
3586 /* Write section headers to the file. */
3587 internal_f.f_nscns = 0;
3589 if ((abfd->flags & EXEC_P) != 0)
3590 scn_base = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd);
3593 scn_base = bfd_coff_filhsz (abfd);
3596 if (xcoff_data (abfd)->full_aouthdr)
3597 scn_base += bfd_coff_aoutsz (abfd);
3599 scn_base += SMALL_AOUTSZ;
3604 if (bfd_seek (abfd, scn_base, SEEK_SET) != 0)
3607 long_section_names = FALSE;
3608 for (current = abfd->sections;
3610 current = current->next)
3612 struct internal_scnhdr section;
3613 bfd_boolean is_reloc_section = FALSE;
3615 #ifdef COFF_IMAGE_WITH_PE
3616 if (strcmp (current->name, ".reloc") == 0)
3618 is_reloc_section = TRUE;
3620 pe_data (abfd)->has_reloc_section = 1;
3624 internal_f.f_nscns++;
3626 strncpy (section.s_name, current->name, SCNNMLEN);
3628 #ifdef COFF_LONG_SECTION_NAMES
3629 /* Handle long section names as in PE. This must be compatible
3630 with the code in coff_write_symbols and _bfd_coff_final_link. */
3631 if (bfd_coff_long_section_names (abfd))
3635 len = strlen (current->name);
3638 /* The s_name field is defined to be NUL-padded but need not be
3639 NUL-terminated. We use a temporary buffer so that we can still
3640 sprintf all eight chars without splatting a terminating NUL
3641 over the first byte of the following member (s_paddr). */
3642 char s_name_buf[SCNNMLEN + 1];
3644 /* An inherent limitation of the /nnnnnnn notation used to indicate
3645 the offset of the long name in the string table is that we
3646 cannot address entries beyone the ten million byte boundary. */
3647 if (string_size >= 10000000)
3649 bfd_set_error (bfd_error_file_too_big);
3650 (*_bfd_error_handler)
3651 (_("%B: section %s: string table overflow at offset %ld"),
3652 abfd, current->name, string_size);
3656 /* snprintf not strictly necessary now we've verified the value
3657 has less than eight ASCII digits, but never mind. */
3658 snprintf (s_name_buf, SCNNMLEN + 1, "/%lu", (unsigned long) string_size);
3659 /* Then strncpy takes care of any padding for us. */
3660 strncpy (section.s_name, s_name_buf, SCNNMLEN);
3661 string_size += len + 1;
3662 long_section_names = TRUE;
3668 /* Always set s_vaddr of .lib to 0. This is right for SVR3.2
3669 Ian Taylor <ian@cygnus.com>. */
3670 if (strcmp (current->name, _LIB) == 0)
3671 section.s_vaddr = 0;
3674 section.s_vaddr = current->vma;
3675 section.s_paddr = current->lma;
3676 section.s_size = current->size;
3677 #ifdef coff_get_section_load_page
3678 section.s_page = coff_get_section_load_page (current);
3684 section.s_paddr = 0;
3686 #ifdef COFF_IMAGE_WITH_PE
3687 /* Reminder: s_paddr holds the virtual size of the section. */
3688 if (coff_section_data (abfd, current) != NULL
3689 && pei_section_data (abfd, current) != NULL)
3690 section.s_paddr = pei_section_data (abfd, current)->virt_size;
3692 section.s_paddr = 0;
3695 /* If this section has no size or is unloadable then the scnptr
3697 if (current->size == 0
3698 || (current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
3699 section.s_scnptr = 0;
3701 section.s_scnptr = current->filepos;
3703 section.s_relptr = current->rel_filepos;
3704 section.s_lnnoptr = current->line_filepos;
3705 section.s_nreloc = current->reloc_count;
3706 section.s_nlnno = current->lineno_count;
3707 #ifndef COFF_IMAGE_WITH_PE
3708 /* In PEI, relocs come in the .reloc section. */
3709 if (current->reloc_count != 0)
3712 if (current->lineno_count != 0)
3714 if ((current->flags & SEC_DEBUGGING) != 0
3715 && ! is_reloc_section)
3720 /* Indicate the use of an XCOFF overflow section header. */
3721 if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
3723 section.s_nreloc = 0xffff;
3724 section.s_nlnno = 0xffff;
3729 section.s_flags = sec_to_styp_flags (current->name, current->flags);
3731 if (!strcmp (current->name, _TEXT))
3733 else if (!strcmp (current->name, _DATA))
3735 else if (!strcmp (current->name, _BSS))
3739 section.s_align = (current->alignment_power
3740 ? 1 << current->alignment_power
3744 /* TI COFF puts the alignment power in bits 8-11 of the flags. */
3745 section.s_flags |= (current->alignment_power & 0xF) << 8;
3747 #ifdef COFF_ENCODE_ALIGNMENT
3748 COFF_ENCODE_ALIGNMENT(section, current->alignment_power);
3751 #ifdef COFF_IMAGE_WITH_PE
3752 /* Suppress output of the sections if they are null. ld
3753 includes the bss and data sections even if there is no size
3754 assigned to them. NT loader doesn't like it if these section
3755 headers are included if the sections themselves are not
3756 needed. See also coff_compute_section_file_positions. */
3757 if (section.s_size == 0)
3758 internal_f.f_nscns--;
3763 bfd_size_type amt = bfd_coff_scnhsz (abfd);
3765 if (coff_swap_scnhdr_out (abfd, §ion, &buff) == 0
3766 || bfd_bwrite (& buff, amt, abfd) != amt)
3771 /* PE stores COMDAT section information in the symbol table. If
3772 this section is supposed to have some COMDAT info, track down
3773 the symbol in the symbol table and modify it. */
3774 if ((current->flags & SEC_LINK_ONCE) != 0)
3776 unsigned int i, count;
3778 coff_symbol_type *csym = NULL;
3782 count = bfd_get_symcount (abfd);
3783 for (i = 0, psym = abfd->outsymbols; i < count; i++, psym++)
3785 if ((*psym)->section != current)
3788 /* Remember the location of the first symbol in this
3790 if (psymsec == NULL)
3793 /* See if this is the section symbol. */
3794 if (strcmp ((*psym)->name, current->name) == 0)
3796 csym = coff_symbol_from (abfd, *psym);
3798 || csym->native == NULL
3799 || csym->native->u.syment.n_numaux < 1
3800 || csym->native->u.syment.n_sclass != C_STAT
3801 || csym->native->u.syment.n_type != T_NULL)
3804 /* Here *PSYM is the section symbol for CURRENT. */
3811 Note that we might not if we're converting the file from
3812 some other object file format. */
3815 combined_entry_type *aux;
3817 /* We don't touch the x_checksum field. The
3818 x_associated field is not currently supported. */
3820 aux = csym->native + 1;
3821 switch (current->flags & SEC_LINK_DUPLICATES)
3823 case SEC_LINK_DUPLICATES_DISCARD:
3824 aux->u.auxent.x_scn.x_comdat = IMAGE_COMDAT_SELECT_ANY;
3827 case SEC_LINK_DUPLICATES_ONE_ONLY:
3828 aux->u.auxent.x_scn.x_comdat =
3829 IMAGE_COMDAT_SELECT_NODUPLICATES;
3832 case SEC_LINK_DUPLICATES_SAME_SIZE:
3833 aux->u.auxent.x_scn.x_comdat =
3834 IMAGE_COMDAT_SELECT_SAME_SIZE;
3837 case SEC_LINK_DUPLICATES_SAME_CONTENTS:
3838 aux->u.auxent.x_scn.x_comdat =
3839 IMAGE_COMDAT_SELECT_EXACT_MATCH;
3843 /* The COMDAT symbol must be the first symbol from this
3844 section in the symbol table. In order to make this
3845 work, we move the COMDAT symbol before the first
3846 symbol we found in the search above. It's OK to
3847 rearrange the symbol table at this point, because
3848 coff_renumber_symbols is going to rearrange it
3849 further and fix up all the aux entries. */
3850 if (psym != psymsec)
3856 for (pcopy = psym; pcopy > psymsec; pcopy--)
3857 pcopy[0] = pcopy[-1];
3862 #endif /* COFF_WITH_PE */
3867 /* XCOFF handles overflows in the reloc and line number count fields
3868 by creating a new section header to hold the correct values. */
3869 for (current = abfd->sections; current != NULL; current = current->next)
3871 if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
3873 struct internal_scnhdr scnhdr;
3877 internal_f.f_nscns++;
3878 strncpy (&(scnhdr.s_name[0]), current->name, 8);
3879 scnhdr.s_paddr = current->reloc_count;
3880 scnhdr.s_vaddr = current->lineno_count;
3882 scnhdr.s_scnptr = 0;
3883 scnhdr.s_relptr = current->rel_filepos;
3884 scnhdr.s_lnnoptr = current->line_filepos;
3885 scnhdr.s_nreloc = current->target_index;
3886 scnhdr.s_nlnno = current->target_index;
3887 scnhdr.s_flags = STYP_OVRFLO;
3888 amt = bfd_coff_scnhsz (abfd);
3889 if (coff_swap_scnhdr_out (abfd, &scnhdr, &buff) == 0
3890 || bfd_bwrite (& buff, amt, abfd) != amt)
3897 /* OK, now set up the filehdr... */
3899 /* Don't include the internal abs section in the section count */
3901 /* We will NOT put a fucking timestamp in the header here. Every time you
3902 put it back, I will come in and take it out again. I'm sorry. This
3903 field does not belong here. We fill it with a 0 so it compares the
3904 same but is not a reasonable time. -- gnu@cygnus.com */
3905 internal_f.f_timdat = 0;
3906 internal_f.f_flags = 0;
3908 if (abfd->flags & EXEC_P)
3909 internal_f.f_opthdr = bfd_coff_aoutsz (abfd);
3912 internal_f.f_opthdr = 0;
3915 if (xcoff_data (abfd)->full_aouthdr)
3916 internal_f.f_opthdr = bfd_coff_aoutsz (abfd);
3918 internal_f.f_opthdr = SMALL_AOUTSZ;
3924 internal_f.f_flags |= F_RELFLG;
3926 internal_f.f_flags |= F_LNNO;
3927 if (abfd->flags & EXEC_P)
3928 internal_f.f_flags |= F_EXEC;
3929 #ifdef COFF_IMAGE_WITH_PE
3931 internal_f.f_flags |= IMAGE_FILE_DEBUG_STRIPPED;
3932 if (pe_data (abfd)->real_flags & IMAGE_FILE_LARGE_ADDRESS_AWARE)
3933 internal_f.f_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE;
3936 #ifndef COFF_WITH_pex64
3938 internal_f.f_flags |= IMAGE_FILE_32BIT_MACHINE;
3940 if (bfd_little_endian (abfd))
3941 internal_f.f_flags |= F_AR32WR;
3943 internal_f.f_flags |= F_AR32W;
3948 /* Target id is used in TI COFF v1 and later; COFF0 won't use this field,
3949 but it doesn't hurt to set it internally. */
3950 internal_f.f_target_id = TI_TARGET_ID;
3952 #ifdef TIC80_TARGET_ID
3953 internal_f.f_target_id = TIC80_TARGET_ID;
3956 /* FIXME, should do something about the other byte orders and
3960 if ((abfd->flags & DYNAMIC) != 0)
3961 internal_f.f_flags |= F_SHROBJ;
3962 if (bfd_get_section_by_name (abfd, _LOADER) != NULL)
3963 internal_f.f_flags |= F_DYNLOAD;
3966 memset (&internal_a, 0, sizeof internal_a);
3968 /* Set up architecture-dependent stuff. */
3970 unsigned int magic = 0;
3971 unsigned short flags = 0;
3973 coff_set_flags (abfd, &magic, &flags);
3974 internal_f.f_magic = magic;
3975 internal_f.f_flags |= flags;
3976 /* ...and the "opt"hdr... */
3978 #ifdef TICOFF_AOUT_MAGIC
3979 internal_a.magic = TICOFF_AOUT_MAGIC;
3980 #define __A_MAGIC_SET__
3983 internal_a.magic = TIC80_ARCH_MAGIC;
3984 #define __A_MAGIC_SET__
3987 /* FIXME: What are the a.out magic numbers for the i860? */
3988 internal_a.magic = 0;
3989 #define __A_MAGIC_SET__
3992 internal_a.magic = (magic == I960ROMAGIC ? NMAGIC : OMAGIC);
3993 #define __A_MAGIC_SET__
3996 #define __A_MAGIC_SET__
3997 internal_a.magic = PAGEMAGICBCS;
4001 #define __A_MAGIC_SET__
4002 internal_a.magic = APOLLO_COFF_VERSION_NUMBER;
4005 #if defined(M68) || defined(WE32K) || defined(M68K)
4006 #define __A_MAGIC_SET__
4008 internal_a.magic = LYNXCOFFMAGIC;
4010 #if defined(TARG_AUX)
4011 internal_a.magic = (abfd->flags & D_PAGED ? PAGEMAGICPEXECPAGED :
4012 abfd->flags & WP_TEXT ? PAGEMAGICPEXECSWAPPED :
4013 PAGEMAGICEXECSWAPPED);
4015 #if defined (PAGEMAGICPEXECPAGED)
4016 internal_a.magic = PAGEMAGICPEXECPAGED;
4018 #endif /* TARG_AUX */
4020 #endif /* M68 || WE32K || M68K */
4023 #define __A_MAGIC_SET__
4024 internal_a.magic = ZMAGIC;
4028 #define __A_MAGIC_SET__
4029 internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC;
4032 #if defined MCORE_PE
4033 #define __A_MAGIC_SET__
4034 internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC;
4038 #define __A_MAGIC_SET__
4040 internal_a.magic = LYNXCOFFMAGIC;
4042 internal_a.magic = IMAGE_NT_OPTIONAL_HDR64_MAGIC;
4044 internal_a.magic = ZMAGIC;
4049 #define __A_MAGIC_SET__
4050 internal_a.magic = PE32PMAGIC;
4054 #define __A_MAGIC_SET__
4056 internal_a.magic = LYNXCOFFMAGIC;
4061 #define __A_MAGIC_SET__
4062 internal_a.magic = (abfd->flags & D_PAGED) ? RS6K_AOUTHDR_ZMAGIC :
4063 (abfd->flags & WP_TEXT) ? RS6K_AOUTHDR_NMAGIC :
4064 RS6K_AOUTHDR_OMAGIC;
4067 #if defined(SH) && defined(COFF_WITH_PE)
4068 #define __A_MAGIC_SET__
4069 internal_a.magic = SH_PE_MAGIC;
4072 #if defined(MIPS) && defined(COFF_WITH_PE)
4073 #define __A_MAGIC_SET__
4074 internal_a.magic = MIPS_PE_MAGIC;
4078 #define __A_MAGIC_SET__
4079 internal_a.magic = NMAGIC; /* Assume separate i/d. */
4083 #define __A_MAGIC_SET__
4084 internal_a.magic = MAXQ20MAGIC;
4087 #ifndef __A_MAGIC_SET__
4088 #include "Your aouthdr magic number is not being set!"
4090 #undef __A_MAGIC_SET__
4094 /* FIXME: Does anybody ever set this to another value? */
4095 internal_a.vstamp = 0;
4097 /* Now should write relocs, strings, syms. */
4098 obj_sym_filepos (abfd) = sym_base;
4100 if (bfd_get_symcount (abfd) != 0)
4104 if (!coff_renumber_symbols (abfd, &firstundef))
4106 coff_mangle_symbols (abfd);
4107 if (! coff_write_symbols (abfd))
4109 if (! coff_write_linenumbers (abfd))
4111 if (! coff_write_relocs (abfd, firstundef))
4114 #ifdef COFF_LONG_SECTION_NAMES
4115 else if (long_section_names && ! obj_coff_strings_written (abfd))
4117 /* If we have long section names we have to write out the string
4118 table even if there are no symbols. */
4119 if (! coff_write_symbols (abfd))
4123 #ifdef COFF_IMAGE_WITH_PE
4125 else if ((abfd->flags & EXEC_P) != 0)
4129 /* PowerPC PE appears to require that all executable files be
4130 rounded up to the page size. */
4133 (file_ptr) BFD_ALIGN (sym_base, COFF_PAGE_SIZE) - 1,
4135 || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1)
4141 /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF
4142 backend linker, and obj_raw_syment_count is not valid until after
4143 coff_write_symbols is called. */
4144 if (obj_raw_syment_count (abfd) != 0)
4146 internal_f.f_symptr = sym_base;
4148 /* AIX appears to require that F_RELFLG not be set if there are
4149 local symbols but no relocations. */
4150 internal_f.f_flags &=~ F_RELFLG;
4155 if (long_section_names)
4156 internal_f.f_symptr = sym_base;
4158 internal_f.f_symptr = 0;
4159 internal_f.f_flags |= F_LSYMS;
4164 internal_a.tsize = text_sec->size;
4165 internal_a.text_start = internal_a.tsize ? text_sec->vma : 0;
4169 internal_a.dsize = data_sec->size;
4170 internal_a.data_start = internal_a.dsize ? data_sec->vma : 0;
4174 internal_a.bsize = bss_sec->size;
4175 if (internal_a.bsize && bss_sec->vma < internal_a.data_start)
4176 internal_a.data_start = bss_sec->vma;
4179 internal_a.entry = bfd_get_start_address (abfd);
4180 internal_f.f_nsyms = obj_raw_syment_count (abfd);
4183 if (xcoff_data (abfd)->full_aouthdr)
4186 asection *loader_sec;
4188 internal_a.vstamp = 1;
4190 internal_a.o_snentry = xcoff_data (abfd)->snentry;
4191 if (internal_a.o_snentry == 0)
4192 internal_a.entry = (bfd_vma) -1;
4194 if (text_sec != NULL)
4196 internal_a.o_sntext = text_sec->target_index;
4197 internal_a.o_algntext = bfd_get_section_alignment (abfd, text_sec);
4201 internal_a.o_sntext = 0;
4202 internal_a.o_algntext = 0;
4204 if (data_sec != NULL)
4206 internal_a.o_sndata = data_sec->target_index;
4207 internal_a.o_algndata = bfd_get_section_alignment (abfd, data_sec);
4211 internal_a.o_sndata = 0;
4212 internal_a.o_algndata = 0;
4214 loader_sec = bfd_get_section_by_name (abfd, ".loader");
4215 if (loader_sec != NULL)
4216 internal_a.o_snloader = loader_sec->target_index;
4218 internal_a.o_snloader = 0;
4219 if (bss_sec != NULL)
4220 internal_a.o_snbss = bss_sec->target_index;
4222 internal_a.o_snbss = 0;
4224 toc = xcoff_data (abfd)->toc;
4225 internal_a.o_toc = toc;
4226 internal_a.o_sntoc = xcoff_data (abfd)->sntoc;
4228 internal_a.o_modtype = xcoff_data (abfd)->modtype;
4229 if (xcoff_data (abfd)->cputype != -1)
4230 internal_a.o_cputype = xcoff_data (abfd)->cputype;
4233 switch (bfd_get_arch (abfd))
4235 case bfd_arch_rs6000:
4236 internal_a.o_cputype = 4;
4238 case bfd_arch_powerpc:
4239 if (bfd_get_mach (abfd) == bfd_mach_ppc)
4240 internal_a.o_cputype = 3;
4242 internal_a.o_cputype = 1;
4248 internal_a.o_maxstack = xcoff_data (abfd)->maxstack;
4249 internal_a.o_maxdata = xcoff_data (abfd)->maxdata;
4253 /* Now write them. */
4254 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
4259 bfd_size_type amount = bfd_coff_filhsz (abfd);
4261 buff = bfd_malloc (amount);
4265 bfd_coff_swap_filehdr_out (abfd, & internal_f, buff);
4266 amount = bfd_bwrite (buff, amount, abfd);
4270 if (amount != bfd_coff_filhsz (abfd))
4274 if (abfd->flags & EXEC_P)
4276 /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR.
4277 include/coff/pe.h sets AOUTSZ == sizeof (PEAOUTHDR)). */
4279 bfd_size_type amount = bfd_coff_aoutsz (abfd);
4281 buff = bfd_malloc (amount);
4285 coff_swap_aouthdr_out (abfd, & internal_a, buff);
4286 amount = bfd_bwrite (buff, amount, abfd);
4290 if (amount != bfd_coff_aoutsz (abfd))
4293 #ifdef COFF_IMAGE_WITH_PE
4294 if (! coff_apply_checksum (abfd))
4304 /* XCOFF seems to always write at least a small a.out header. */
4305 coff_swap_aouthdr_out (abfd, & internal_a, & buff);
4306 if (xcoff_data (abfd)->full_aouthdr)
4307 size = bfd_coff_aoutsz (abfd);
4309 size = SMALL_AOUTSZ;
4310 if (bfd_bwrite (& buff, (bfd_size_type) size, abfd) != size)
4319 coff_set_section_contents (bfd * abfd,
4321 const void * location,
4323 bfd_size_type count)
4325 if (! abfd->output_has_begun) /* Set by bfd.c handler. */
4327 if (! coff_compute_section_file_positions (abfd))
4331 #if defined(_LIB) && !defined(TARG_AUX)
4332 /* The physical address field of a .lib section is used to hold the
4333 number of shared libraries in the section. This code counts the
4334 number of sections being written, and increments the lma field
4337 I have found no documentation on the contents of this section.
4338 Experimentation indicates that the section contains zero or more
4339 records, each of which has the following structure:
4341 - a (four byte) word holding the length of this record, in words,
4342 - a word that always seems to be set to "2",
4343 - the path to a shared library, null-terminated and then padded
4344 to a whole word boundary.
4346 bfd_assert calls have been added to alert if an attempt is made
4347 to write a section which doesn't follow these assumptions. The
4348 code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe
4349 <robertl@arnet.com> (Thanks!).
4351 Gvran Uddeborg <gvran@uddeborg.pp.se>. */
4352 if (strcmp (section->name, _LIB) == 0)
4354 bfd_byte *rec, *recend;
4356 rec = (bfd_byte *) location;
4357 recend = rec + count;
4358 while (rec < recend)
4361 rec += bfd_get_32 (abfd, rec) * 4;
4364 BFD_ASSERT (rec == recend);
4368 /* Don't write out bss sections - one way to do this is to
4369 see if the filepos has not been set. */
4370 if (section->filepos == 0)
4373 if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0)
4379 return bfd_bwrite (location, count, abfd) == count;
4383 buy_and_read (bfd *abfd, file_ptr where, bfd_size_type size)
4385 void * area = bfd_alloc (abfd, size);
4389 if (bfd_seek (abfd, where, SEEK_SET) != 0
4390 || bfd_bread (area, size, abfd) != size)
4399 Creating the linenumber table is done by reading in the entire
4400 coff linenumber table, and creating another table for internal use.
4402 A coff linenumber table is structured so that each function
4403 is marked as having a line number of 0. Each line within the
4404 function is an offset from the first line in the function. The
4405 base of the line number information for the table is stored in
4406 the symbol associated with the function.
4408 Note: The PE format uses line number 0 for a flag indicating a
4411 The information is copied from the external to the internal
4412 table, and each symbol which marks a function is marked by
4415 How does this work ?
4419 coff_sort_func_alent (const void * arg1, const void * arg2)
4421 const alent *al1 = *(const alent **) arg1;
4422 const alent *al2 = *(const alent **) arg2;
4423 const coff_symbol_type *s1 = (const coff_symbol_type *) (al1->u.sym);
4424 const coff_symbol_type *s2 = (const coff_symbol_type *) (al2->u.sym);
4426 if (s1->symbol.value < s2->symbol.value)
4428 else if (s1->symbol.value > s2->symbol.value)
4435 coff_slurp_line_table (bfd *abfd, asection *asect)
4437 LINENO *native_lineno;
4438 alent *lineno_cache;
4440 unsigned int counter;
4442 bfd_vma prev_offset = 0;
4444 unsigned int nbr_func;
4447 BFD_ASSERT (asect->lineno == NULL);
4449 amt = ((bfd_size_type) asect->lineno_count + 1) * sizeof (alent);
4450 lineno_cache = bfd_alloc (abfd, amt);
4451 if (lineno_cache == NULL)
4454 amt = (bfd_size_type) bfd_coff_linesz (abfd) * asect->lineno_count;
4455 native_lineno = (LINENO *) buy_and_read (abfd, asect->line_filepos, amt);
4456 if (native_lineno == NULL)
4458 (*_bfd_error_handler)
4459 (_("%B: warning: line number table read failed"), abfd);
4460 bfd_release (abfd, lineno_cache);
4464 cache_ptr = lineno_cache;
4465 asect->lineno = lineno_cache;
4466 src = native_lineno;
4469 for (counter = 0; counter < asect->lineno_count; counter++)
4471 struct internal_lineno dst;
4473 bfd_coff_swap_lineno_in (abfd, src, &dst);
4474 cache_ptr->line_number = dst.l_lnno;
4476 if (cache_ptr->line_number == 0)
4479 bfd_signed_vma symndx;
4480 coff_symbol_type *sym;
4484 symndx = dst.l_addr.l_symndx;
4486 || (bfd_vma) symndx >= obj_raw_syment_count (abfd))
4488 (*_bfd_error_handler)
4489 (_("%B: warning: illegal symbol index %ld in line numbers"),
4490 abfd, dst.l_addr.l_symndx);
4495 /* FIXME: We should not be casting between ints and
4496 pointers like this. */
4497 sym = ((coff_symbol_type *)
4498 ((symndx + obj_raw_syments (abfd))
4499 ->u.syment._n._n_n._n_zeroes));
4500 cache_ptr->u.sym = (asymbol *) sym;
4501 if (sym->lineno != NULL && ! warned)
4502 (*_bfd_error_handler)
4503 (_("%B: warning: duplicate line number information for `%s'"),
4504 abfd, bfd_asymbol_name (&sym->symbol));
4506 sym->lineno = cache_ptr;
4507 if (sym->symbol.value < prev_offset)
4509 prev_offset = sym->symbol.value;
4512 cache_ptr->u.offset = dst.l_addr.l_paddr
4513 - bfd_section_vma (abfd, asect);
4518 cache_ptr->line_number = 0;
4519 bfd_release (abfd, native_lineno);
4521 /* On some systems (eg AIX5.3) the lineno table may not be sorted. */
4524 /* Sort the table. */
4526 alent *n_lineno_cache;
4528 /* Create a table of functions. */
4529 func_table = bfd_alloc (abfd, nbr_func * sizeof (alent *));
4530 if (func_table != NULL)
4532 alent **p = func_table;
4535 for (i = 0; i < counter; i++)
4536 if (lineno_cache[i].line_number == 0)
4537 *p++ = &lineno_cache[i];
4539 /* Sort by functions. */
4540 qsort (func_table, nbr_func, sizeof (alent *), coff_sort_func_alent);
4542 /* Create the new sorted table. */
4543 amt = ((bfd_size_type) asect->lineno_count + 1) * sizeof (alent);
4544 n_lineno_cache = bfd_alloc (abfd, amt);
4545 if (n_lineno_cache != NULL)
4547 alent *n_cache_ptr = n_lineno_cache;
4549 for (i = 0; i < nbr_func; i++)
4551 coff_symbol_type *sym;
4552 alent *old_ptr = func_table[i];
4554 /* Copy the function entry and update it. */
4555 *n_cache_ptr = *old_ptr;
4556 sym = (coff_symbol_type *)n_cache_ptr->u.sym;
4557 sym->lineno = n_cache_ptr;
4561 /* Copy the line number entries. */
4562 while (old_ptr->line_number != 0)
4563 *n_cache_ptr++ = *old_ptr++;
4565 n_cache_ptr->line_number = 0;
4566 memcpy (lineno_cache, n_lineno_cache, amt);
4568 bfd_release (abfd, func_table);
4575 /* Slurp in the symbol table, converting it to generic form. Note
4576 that if coff_relocate_section is defined, the linker will read
4577 symbols via coff_link_add_symbols, rather than via this routine. */
4580 coff_slurp_symbol_table (bfd * abfd)
4582 combined_entry_type *native_symbols;
4583 coff_symbol_type *cached_area;
4584 unsigned int *table_ptr;
4586 unsigned int number_of_symbols = 0;
4588 if (obj_symbols (abfd))
4591 /* Read in the symbol table. */
4592 if ((native_symbols = coff_get_normalized_symtab (abfd)) == NULL)
4595 /* Allocate enough room for all the symbols in cached form. */
4596 amt = obj_raw_syment_count (abfd);
4597 amt *= sizeof (coff_symbol_type);
4598 cached_area = bfd_alloc (abfd, amt);
4599 if (cached_area == NULL)
4602 amt = obj_raw_syment_count (abfd);
4603 amt *= sizeof (unsigned int);
4604 table_ptr = bfd_alloc (abfd, amt);
4606 if (table_ptr == NULL)
4610 coff_symbol_type *dst = cached_area;
4611 unsigned int last_native_index = obj_raw_syment_count (abfd);
4612 unsigned int this_index = 0;
4614 while (this_index < last_native_index)
4616 combined_entry_type *src = native_symbols + this_index;
4617 table_ptr[this_index] = number_of_symbols;
4618 dst->symbol.the_bfd = abfd;
4620 dst->symbol.name = (char *) (src->u.syment._n._n_n._n_offset);
4621 /* We use the native name field to point to the cached field. */
4622 src->u.syment._n._n_n._n_zeroes = (bfd_hostptr_t) dst;
4623 dst->symbol.section = coff_section_from_bfd_index (abfd,
4624 src->u.syment.n_scnum);
4625 dst->symbol.flags = 0;
4626 dst->done_lineno = FALSE;
4628 switch (src->u.syment.n_sclass)
4632 /* Fall through to next case. */
4639 case C_THUMBEXTFUNC:
4645 case C_SYSTEM: /* System Wide variable. */
4648 /* In PE, 0x68 (104) denotes a section symbol. */
4650 /* In PE, 0x69 (105) denotes a weak external symbol. */
4653 switch (coff_classify_symbol (abfd, &src->u.syment))
4655 case COFF_SYMBOL_GLOBAL:
4656 dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL;
4657 #if defined COFF_WITH_PE
4658 /* PE sets the symbol to a value relative to the
4659 start of the section. */
4660 dst->symbol.value = src->u.syment.n_value;
4662 dst->symbol.value = (src->u.syment.n_value
4663 - dst->symbol.section->vma);
4665 if (ISFCN ((src->u.syment.n_type)))
4666 /* A function ext does not go at the end of a
4668 dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION;
4671 case COFF_SYMBOL_COMMON:
4672 dst->symbol.section = bfd_com_section_ptr;
4673 dst->symbol.value = src->u.syment.n_value;
4676 case COFF_SYMBOL_UNDEFINED:
4677 dst->symbol.section = bfd_und_section_ptr;
4678 dst->symbol.value = 0;
4681 case COFF_SYMBOL_PE_SECTION:
4682 dst->symbol.flags |= BSF_EXPORT | BSF_SECTION_SYM;
4683 dst->symbol.value = 0;
4686 case COFF_SYMBOL_LOCAL:
4687 dst->symbol.flags = BSF_LOCAL;
4688 #if defined COFF_WITH_PE
4689 /* PE sets the symbol to a value relative to the
4690 start of the section. */
4691 dst->symbol.value = src->u.syment.n_value;
4693 dst->symbol.value = (src->u.syment.n_value
4694 - dst->symbol.section->vma);
4696 if (ISFCN ((src->u.syment.n_type)))
4697 dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION;
4702 /* A symbol with a csect entry should not go at the end. */
4703 if (src->u.syment.n_numaux > 0)
4704 dst->symbol.flags |= BSF_NOT_AT_END;
4708 if (src->u.syment.n_sclass == C_NT_WEAK)
4709 dst->symbol.flags |= BSF_WEAK;
4711 if (src->u.syment.n_sclass == C_SECTION
4712 && src->u.syment.n_scnum > 0)
4713 dst->symbol.flags = BSF_LOCAL;
4715 if (src->u.syment.n_sclass == C_WEAKEXT)
4716 dst->symbol.flags |= BSF_WEAK;
4720 case C_STAT: /* Static. */
4722 case C_LEAFSTAT: /* Static leaf procedure. */
4725 case C_THUMBSTAT: /* Thumb static. */
4726 case C_THUMBLABEL: /* Thumb label. */
4727 case C_THUMBSTATFUNC:/* Thumb static function. */
4729 case C_LABEL: /* Label. */
4730 if (src->u.syment.n_scnum == N_DEBUG)
4731 dst->symbol.flags = BSF_DEBUGGING;
4733 dst->symbol.flags = BSF_LOCAL;
4735 /* Base the value as an index from the base of the
4736 section, if there is one. */
4737 if (dst->symbol.section)
4739 #if defined COFF_WITH_PE
4740 /* PE sets the symbol to a value relative to the
4741 start of the section. */
4742 dst->symbol.value = src->u.syment.n_value;
4744 dst->symbol.value = (src->u.syment.n_value
4745 - dst->symbol.section->vma);
4749 dst->symbol.value = src->u.syment.n_value;
4752 case C_MOS: /* Member of structure. */
4753 case C_EOS: /* End of structure. */
4754 case C_REGPARM: /* Register parameter. */
4755 case C_REG: /* register variable. */
4756 /* C_AUTOARG conflicts with TI COFF C_UEXT. */
4757 #if !defined (TIC80COFF) && !defined (TICOFF)
4759 case C_AUTOARG: /* 960-specific storage class. */
4762 case C_TPDEF: /* Type definition. */
4764 case C_AUTO: /* Automatic variable. */
4765 case C_FIELD: /* Bit field. */
4766 case C_ENTAG: /* Enumeration tag. */
4767 case C_MOE: /* Member of enumeration. */
4768 case C_MOU: /* Member of union. */
4769 case C_UNTAG: /* Union tag. */
4770 dst->symbol.flags = BSF_DEBUGGING;
4771 dst->symbol.value = (src->u.syment.n_value);
4774 case C_FILE: /* File name. */
4775 case C_STRTAG: /* Structure tag. */
4792 dst->symbol.flags = BSF_DEBUGGING;
4793 dst->symbol.value = (src->u.syment.n_value);
4797 case C_BINCL: /* Beginning of include file. */
4798 case C_EINCL: /* Ending of include file. */
4799 /* The value is actually a pointer into the line numbers
4800 of the file. We locate the line number entry, and
4801 set the section to the section which contains it, and
4802 the value to the index in that section. */
4806 dst->symbol.flags = BSF_DEBUGGING;
4807 for (sec = abfd->sections; sec != NULL; sec = sec->next)
4808 if (sec->line_filepos <= (file_ptr) src->u.syment.n_value
4809 && ((file_ptr) (sec->line_filepos
4810 + sec->lineno_count * bfd_coff_linesz (abfd))
4811 > (file_ptr) src->u.syment.n_value))
4814 dst->symbol.value = 0;
4817 dst->symbol.section = sec;
4818 dst->symbol.value = ((src->u.syment.n_value
4819 - sec->line_filepos)
4820 / bfd_coff_linesz (abfd));
4827 dst->symbol.flags = BSF_DEBUGGING;
4829 /* The value is actually a symbol index. Save a pointer
4830 to the symbol instead of the index. FIXME: This
4831 should use a union. */
4832 src->u.syment.n_value =
4833 (long) (native_symbols + src->u.syment.n_value);
4834 dst->symbol.value = src->u.syment.n_value;
4839 case C_BLOCK: /* ".bb" or ".eb". */
4840 case C_FCN: /* ".bf" or ".ef" (or PE ".lf"). */
4841 case C_EFCN: /* Physical end of function. */
4842 #if defined COFF_WITH_PE
4843 /* PE sets the symbol to a value relative to the start
4845 dst->symbol.value = src->u.syment.n_value;
4846 if (strcmp (dst->symbol.name, ".bf") != 0)
4848 /* PE uses funny values for .ef and .lf; don't
4850 dst->symbol.flags = BSF_DEBUGGING;
4853 dst->symbol.flags = BSF_DEBUGGING | BSF_DEBUGGING_RELOC;
4855 /* Base the value as an index from the base of the
4857 dst->symbol.flags = BSF_LOCAL;
4858 dst->symbol.value = (src->u.syment.n_value
4859 - dst->symbol.section->vma);
4863 case C_STATLAB: /* Static load time label. */
4864 dst->symbol.value = src->u.syment.n_value;
4865 dst->symbol.flags = BSF_GLOBAL;
4869 /* PE DLLs sometimes have zeroed out symbols for some
4870 reason. Just ignore them without a warning. */
4871 if (src->u.syment.n_type == 0
4872 && src->u.syment.n_value == 0
4873 && src->u.syment.n_scnum == 0)
4876 case C_EXTDEF: /* External definition. */
4877 case C_ULABEL: /* Undefined label. */
4878 case C_USTATIC: /* Undefined static. */
4879 #ifndef COFF_WITH_PE
4880 /* C_LINE in regular coff is 0x68. NT has taken over this storage
4881 class to represent a section symbol. */
4882 case C_LINE: /* line # reformatted as symbol table entry. */
4883 /* NT uses 0x67 for a weak symbol, not C_ALIAS. */
4884 case C_ALIAS: /* Duplicate tag. */
4886 /* New storage classes for TI COFF. */
4887 #if defined(TIC80COFF) || defined(TICOFF)
4888 case C_UEXT: /* Tentative external definition. */
4890 case C_EXTLAB: /* External load time label. */
4891 case C_HIDDEN: /* Ext symbol in dmert public lib. */
4893 (*_bfd_error_handler)
4894 (_("%B: Unrecognized storage class %d for %s symbol `%s'"),
4895 abfd, src->u.syment.n_sclass,
4896 dst->symbol.section->name, dst->symbol.name);
4897 dst->symbol.flags = BSF_DEBUGGING;
4898 dst->symbol.value = (src->u.syment.n_value);
4904 dst->symbol.udata.i = 0;
4906 this_index += (src->u.syment.n_numaux) + 1;
4908 number_of_symbols++;
4912 obj_symbols (abfd) = cached_area;
4913 obj_raw_syments (abfd) = native_symbols;
4915 bfd_get_symcount (abfd) = number_of_symbols;
4916 obj_convert (abfd) = table_ptr;
4917 /* Slurp the line tables for each section too. */
4924 coff_slurp_line_table (abfd, p);
4932 /* Classify a COFF symbol. A couple of targets have globally visible
4933 symbols which are not class C_EXT, and this handles those. It also
4934 recognizes some special PE cases. */
4936 static enum coff_symbol_classification
4937 coff_classify_symbol (bfd *abfd,
4938 struct internal_syment *syment)
4940 /* FIXME: This partially duplicates the switch in
4941 coff_slurp_symbol_table. */
4942 switch (syment->n_sclass)
4951 case C_THUMBEXTFUNC:
4959 if (syment->n_scnum == 0)
4961 if (syment->n_value == 0)
4962 return COFF_SYMBOL_UNDEFINED;
4964 return COFF_SYMBOL_COMMON;
4966 return COFF_SYMBOL_GLOBAL;
4973 if (syment->n_sclass == C_STAT)
4975 if (syment->n_scnum == 0)
4976 /* The Microsoft compiler sometimes generates these if a
4977 small static function is inlined every time it is used.
4978 The function is discarded, but the symbol table entry
4980 return COFF_SYMBOL_LOCAL;
4982 #ifdef STRICT_PE_FORMAT
4983 /* This is correct for Microsoft generated objects, but it
4984 breaks gas generated objects. */
4985 if (syment->n_value == 0)
4988 char buf[SYMNMLEN + 1];
4990 sec = coff_section_from_bfd_index (abfd, syment->n_scnum);
4992 && (strcmp (bfd_get_section_name (abfd, sec),
4993 _bfd_coff_internal_syment_name (abfd, syment, buf))
4995 return COFF_SYMBOL_PE_SECTION;
4999 return COFF_SYMBOL_LOCAL;
5002 if (syment->n_sclass == C_SECTION)
5004 /* In some cases in a DLL generated by the Microsoft linker, the
5005 n_value field will contain garbage. FIXME: This should
5006 probably be handled by the swapping function instead. */
5007 syment->n_value = 0;
5008 if (syment->n_scnum == 0)
5009 return COFF_SYMBOL_UNDEFINED;
5010 return COFF_SYMBOL_PE_SECTION;
5012 #endif /* COFF_WITH_PE */
5014 /* If it is not a global symbol, we presume it is a local symbol. */
5015 if (syment->n_scnum == 0)
5017 char buf[SYMNMLEN + 1];
5019 (*_bfd_error_handler)
5020 (_("warning: %B: local symbol `%s' has no section"),
5021 abfd, _bfd_coff_internal_syment_name (abfd, syment, buf));
5024 return COFF_SYMBOL_LOCAL;
5031 Coff relocations are easily transformed into the internal BFD form
5034 Reading a coff relocation table is done in the following stages:
5036 o Read the entire coff relocation table into memory.
5038 o Process each relocation in turn; first swap it from the
5039 external to the internal form.
5041 o Turn the symbol referenced in the relocation's symbol index
5042 into a pointer into the canonical symbol table.
5043 This table is the same as the one returned by a call to
5044 @code{bfd_canonicalize_symtab}. The back end will call that
5045 routine and save the result if a canonicalization hasn't been done.
5047 o The reloc index is turned into a pointer to a howto
5048 structure, in a back end specific way. For instance, the 386
5049 and 960 use the @code{r_type} to directly produce an index
5050 into a howto table vector; the 88k subtracts a number from the
5051 @code{r_type} field and creates an addend field.
5055 #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
5057 coff_symbol_type *coffsym = NULL; \
5059 if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
5060 coffsym = (obj_symbols (abfd) \
5061 + (cache_ptr->sym_ptr_ptr - symbols)); \
5063 coffsym = coff_symbol_from (abfd, ptr); \
5064 if (coffsym != NULL \
5065 && coffsym->native->u.syment.n_scnum == 0) \
5066 cache_ptr->addend = 0; \
5067 else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
5068 && ptr->section != NULL) \
5069 cache_ptr->addend = - (ptr->section->vma + ptr->value); \
5071 cache_ptr->addend = 0; \
5076 coff_slurp_reloc_table (bfd * abfd, sec_ptr asect, asymbol ** symbols)
5078 RELOC *native_relocs;
5079 arelent *reloc_cache;
5084 if (asect->relocation)
5086 if (asect->reloc_count == 0)
5088 if (asect->flags & SEC_CONSTRUCTOR)
5090 if (!coff_slurp_symbol_table (abfd))
5093 amt = (bfd_size_type) bfd_coff_relsz (abfd) * asect->reloc_count;
5094 native_relocs = (RELOC *) buy_and_read (abfd, asect->rel_filepos, amt);
5095 amt = (bfd_size_type) asect->reloc_count * sizeof (arelent);
5096 reloc_cache = bfd_alloc (abfd, amt);
5098 if (reloc_cache == NULL || native_relocs == NULL)
5101 for (idx = 0; idx < asect->reloc_count; idx++)
5103 struct internal_reloc dst;
5104 struct external_reloc *src;
5105 #ifndef RELOC_PROCESSING
5109 cache_ptr = reloc_cache + idx;
5110 src = native_relocs + idx;
5113 coff_swap_reloc_in (abfd, src, &dst);
5115 #ifdef RELOC_PROCESSING
5116 RELOC_PROCESSING (cache_ptr, &dst, symbols, abfd, asect);
5118 cache_ptr->address = dst.r_vaddr;
5120 if (dst.r_symndx != -1)
5122 if (dst.r_symndx < 0 || dst.r_symndx >= obj_conv_table_size (abfd))
5124 (*_bfd_error_handler)
5125 (_("%B: warning: illegal symbol index %ld in relocs"),
5126 abfd, dst.r_symndx);
5127 cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
5132 cache_ptr->sym_ptr_ptr = (symbols
5133 + obj_convert (abfd)[dst.r_symndx]);
5134 ptr = *(cache_ptr->sym_ptr_ptr);
5139 cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
5143 /* The symbols definitions that we have read in have been
5144 relocated as if their sections started at 0. But the offsets
5145 refering to the symbols in the raw data have not been
5146 modified, so we have to have a negative addend to compensate.
5148 Note that symbols which used to be common must be left alone. */
5150 /* Calculate any reloc addend by looking at the symbol. */
5151 CALC_ADDEND (abfd, ptr, dst, cache_ptr);
5153 cache_ptr->address -= asect->vma;
5154 /* !! cache_ptr->section = NULL;*/
5156 /* Fill in the cache_ptr->howto field from dst.r_type. */
5157 RTYPE2HOWTO (cache_ptr, &dst);
5158 #endif /* RELOC_PROCESSING */
5160 if (cache_ptr->howto == NULL)
5162 (*_bfd_error_handler)
5163 (_("%B: illegal relocation type %d at address 0x%lx"),
5164 abfd, dst.r_type, (long) dst.r_vaddr);
5165 bfd_set_error (bfd_error_bad_value);
5170 asect->relocation = reloc_cache;
5174 #ifndef coff_rtype_to_howto
5177 /* Get the howto structure for a reloc. This is only used if the file
5178 including this one defines coff_relocate_section to be
5179 _bfd_coff_generic_relocate_section, so it is OK if it does not
5180 always work. It is the responsibility of the including file to
5181 make sure it is reasonable if it is needed. */
5183 static reloc_howto_type *
5184 coff_rtype_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
5185 asection *sec ATTRIBUTE_UNUSED,
5186 struct internal_reloc *rel,
5187 struct coff_link_hash_entry *h ATTRIBUTE_UNUSED,
5188 struct internal_syment *sym ATTRIBUTE_UNUSED,
5189 bfd_vma *addendp ATTRIBUTE_UNUSED)
5193 genrel.howto = NULL;
5194 RTYPE2HOWTO (&genrel, rel);
5195 return genrel.howto;
5198 #else /* ! defined (RTYPE2HOWTO) */
5200 #define coff_rtype_to_howto NULL
5202 #endif /* ! defined (RTYPE2HOWTO) */
5203 #endif /* ! defined (coff_rtype_to_howto) */
5205 /* This is stupid. This function should be a boolean predicate. */
5208 coff_canonicalize_reloc (bfd * abfd,
5213 arelent *tblptr = section->relocation;
5214 unsigned int count = 0;
5216 if (section->flags & SEC_CONSTRUCTOR)
5218 /* This section has relocs made up by us, they are not in the
5219 file, so take them out of their chain and place them into
5220 the data area provided. */
5221 arelent_chain *chain = section->constructor_chain;
5223 for (count = 0; count < section->reloc_count; count++)
5225 *relptr++ = &chain->relent;
5226 chain = chain->next;
5231 if (! coff_slurp_reloc_table (abfd, section, symbols))
5234 tblptr = section->relocation;
5236 for (; count++ < section->reloc_count;)
5237 *relptr++ = tblptr++;
5240 return section->reloc_count;
5243 #ifndef coff_reloc16_estimate
5244 #define coff_reloc16_estimate dummy_reloc16_estimate
5247 dummy_reloc16_estimate (bfd *abfd ATTRIBUTE_UNUSED,
5248 asection *input_section ATTRIBUTE_UNUSED,
5249 arelent *reloc ATTRIBUTE_UNUSED,
5250 unsigned int shrink ATTRIBUTE_UNUSED,
5251 struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
5259 #ifndef coff_reloc16_extra_cases
5261 #define coff_reloc16_extra_cases dummy_reloc16_extra_cases
5263 /* This works even if abort is not declared in any header file. */
5266 dummy_reloc16_extra_cases (bfd *abfd ATTRIBUTE_UNUSED,
5267 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
5268 struct bfd_link_order *link_order ATTRIBUTE_UNUSED,
5269 arelent *reloc ATTRIBUTE_UNUSED,
5270 bfd_byte *data ATTRIBUTE_UNUSED,
5271 unsigned int *src_ptr ATTRIBUTE_UNUSED,
5272 unsigned int *dst_ptr ATTRIBUTE_UNUSED)
5278 #ifndef coff_bfd_link_hash_table_free
5279 #define coff_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
5282 /* If coff_relocate_section is defined, we can use the optimized COFF
5283 backend linker. Otherwise we must continue to use the old linker. */
5285 #ifdef coff_relocate_section
5287 #ifndef coff_bfd_link_hash_table_create
5288 #define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create
5290 #ifndef coff_bfd_link_add_symbols
5291 #define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols
5293 #ifndef coff_bfd_final_link
5294 #define coff_bfd_final_link _bfd_coff_final_link
5297 #else /* ! defined (coff_relocate_section) */
5299 #define coff_relocate_section NULL
5300 #ifndef coff_bfd_link_hash_table_create
5301 #define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
5303 #ifndef coff_bfd_link_add_symbols
5304 #define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols
5306 #define coff_bfd_final_link _bfd_generic_final_link
5308 #endif /* ! defined (coff_relocate_section) */
5310 #define coff_bfd_link_just_syms _bfd_generic_link_just_syms
5311 #define coff_bfd_link_split_section _bfd_generic_link_split_section
5313 #ifndef coff_start_final_link
5314 #define coff_start_final_link NULL
5317 #ifndef coff_adjust_symndx
5318 #define coff_adjust_symndx NULL
5321 #ifndef coff_link_add_one_symbol
5322 #define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol
5325 #ifndef coff_link_output_has_begun
5328 coff_link_output_has_begun (bfd * abfd,
5329 struct coff_final_link_info * info ATTRIBUTE_UNUSED)
5331 return abfd->output_has_begun;
5335 #ifndef coff_final_link_postscript
5338 coff_final_link_postscript (bfd * abfd ATTRIBUTE_UNUSED,
5339 struct coff_final_link_info * pfinfo ATTRIBUTE_UNUSED)
5345 #ifndef coff_SWAP_aux_in
5346 #define coff_SWAP_aux_in coff_swap_aux_in
5348 #ifndef coff_SWAP_sym_in
5349 #define coff_SWAP_sym_in coff_swap_sym_in
5351 #ifndef coff_SWAP_lineno_in
5352 #define coff_SWAP_lineno_in coff_swap_lineno_in
5354 #ifndef coff_SWAP_aux_out
5355 #define coff_SWAP_aux_out coff_swap_aux_out
5357 #ifndef coff_SWAP_sym_out
5358 #define coff_SWAP_sym_out coff_swap_sym_out
5360 #ifndef coff_SWAP_lineno_out
5361 #define coff_SWAP_lineno_out coff_swap_lineno_out
5363 #ifndef coff_SWAP_reloc_out
5364 #define coff_SWAP_reloc_out coff_swap_reloc_out
5366 #ifndef coff_SWAP_filehdr_out
5367 #define coff_SWAP_filehdr_out coff_swap_filehdr_out
5369 #ifndef coff_SWAP_aouthdr_out
5370 #define coff_SWAP_aouthdr_out coff_swap_aouthdr_out
5372 #ifndef coff_SWAP_scnhdr_out
5373 #define coff_SWAP_scnhdr_out coff_swap_scnhdr_out
5375 #ifndef coff_SWAP_reloc_in
5376 #define coff_SWAP_reloc_in coff_swap_reloc_in
5378 #ifndef coff_SWAP_filehdr_in
5379 #define coff_SWAP_filehdr_in coff_swap_filehdr_in
5381 #ifndef coff_SWAP_aouthdr_in
5382 #define coff_SWAP_aouthdr_in coff_swap_aouthdr_in
5384 #ifndef coff_SWAP_scnhdr_in
5385 #define coff_SWAP_scnhdr_in coff_swap_scnhdr_in
5388 static bfd_coff_backend_data bfd_coff_std_swap_table ATTRIBUTE_UNUSED =
5390 coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in,
5391 coff_SWAP_aux_out, coff_SWAP_sym_out,
5392 coff_SWAP_lineno_out, coff_SWAP_reloc_out,
5393 coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out,
5394 coff_SWAP_scnhdr_out,
5395 FILHSZ, AOUTSZ, SCNHSZ, SYMESZ, AUXESZ, RELSZ, LINESZ, FILNMLEN,
5396 #ifdef COFF_LONG_FILENAMES
5401 COFF_DEFAULT_LONG_SECTION_NAMES,
5402 COFF_DEFAULT_SECTION_ALIGNMENT_POWER,
5403 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5408 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5413 coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in,
5414 coff_SWAP_reloc_in, coff_bad_format_hook, coff_set_arch_mach_hook,
5415 coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook,
5416 coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook,
5417 coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate,
5418 coff_classify_symbol, coff_compute_section_file_positions,
5419 coff_start_final_link, coff_relocate_section, coff_rtype_to_howto,
5420 coff_adjust_symndx, coff_link_add_one_symbol,
5421 coff_link_output_has_begun, coff_final_link_postscript,
5426 /* COFF0 differs in file/section header size and relocation entry size. */
5428 static bfd_coff_backend_data ticoff0_swap_table =
5430 coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in,
5431 coff_SWAP_aux_out, coff_SWAP_sym_out,
5432 coff_SWAP_lineno_out, coff_SWAP_reloc_out,
5433 coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out,
5434 coff_SWAP_scnhdr_out,
5435 FILHSZ_V0, AOUTSZ, SCNHSZ_V01, SYMESZ, AUXESZ, RELSZ_V0, LINESZ, FILNMLEN,
5436 #ifdef COFF_LONG_FILENAMES
5441 COFF_DEFAULT_LONG_SECTION_NAMES,
5442 COFF_DEFAULT_SECTION_ALIGNMENT_POWER,
5443 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5448 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5453 coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in,
5454 coff_SWAP_reloc_in, ticoff0_bad_format_hook, coff_set_arch_mach_hook,
5455 coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook,
5456 coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook,
5457 coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate,
5458 coff_classify_symbol, coff_compute_section_file_positions,
5459 coff_start_final_link, coff_relocate_section, coff_rtype_to_howto,
5460 coff_adjust_symndx, coff_link_add_one_symbol,
5461 coff_link_output_has_begun, coff_final_link_postscript,
5467 /* COFF1 differs in section header size. */
5469 static bfd_coff_backend_data ticoff1_swap_table =
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_V01, 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, ticoff1_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,
5503 bfd_pe_print_pdata /* huh */
5507 #ifndef coff_close_and_cleanup
5508 #define coff_close_and_cleanup _bfd_generic_close_and_cleanup
5511 #ifndef coff_bfd_free_cached_info
5512 #define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
5515 #ifndef coff_get_section_contents
5516 #define coff_get_section_contents _bfd_generic_get_section_contents
5519 #ifndef coff_bfd_copy_private_symbol_data
5520 #define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data
5523 #ifndef coff_bfd_copy_private_header_data
5524 #define coff_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data
5527 #ifndef coff_bfd_copy_private_section_data
5528 #define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data
5531 #ifndef coff_bfd_copy_private_bfd_data
5532 #define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
5535 #ifndef coff_bfd_merge_private_bfd_data
5536 #define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
5539 #ifndef coff_bfd_set_private_flags
5540 #define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
5543 #ifndef coff_bfd_print_private_bfd_data
5544 #define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
5547 #ifndef coff_bfd_is_local_label_name
5548 #define coff_bfd_is_local_label_name _bfd_coff_is_local_label_name
5551 #ifndef coff_bfd_is_target_special_symbol
5552 #define coff_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
5555 #ifndef coff_read_minisymbols
5556 #define coff_read_minisymbols _bfd_generic_read_minisymbols
5559 #ifndef coff_minisymbol_to_symbol
5560 #define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
5563 /* The reloc lookup routine must be supplied by each individual COFF
5565 #ifndef coff_bfd_reloc_type_lookup
5566 #define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
5568 #ifndef coff_bfd_reloc_name_lookup
5569 #define coff_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
5572 #ifndef coff_bfd_get_relocated_section_contents
5573 #define coff_bfd_get_relocated_section_contents \
5574 bfd_generic_get_relocated_section_contents
5577 #ifndef coff_bfd_relax_section
5578 #define coff_bfd_relax_section bfd_generic_relax_section
5581 #ifndef coff_bfd_gc_sections
5582 #define coff_bfd_gc_sections bfd_generic_gc_sections
5585 #ifndef coff_bfd_merge_sections
5586 #define coff_bfd_merge_sections bfd_generic_merge_sections
5589 #ifndef coff_bfd_is_group_section
5590 #define coff_bfd_is_group_section bfd_generic_is_group_section
5593 #ifndef coff_bfd_discard_group
5594 #define coff_bfd_discard_group bfd_generic_discard_group
5597 #ifndef coff_section_already_linked
5598 #define coff_section_already_linked \
5599 _bfd_generic_section_already_linked
5602 #define CREATE_BIG_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5603 const bfd_target VAR = \
5606 bfd_target_coff_flavour, \
5607 BFD_ENDIAN_BIG, /* Data byte order is big. */ \
5608 BFD_ENDIAN_BIG, /* Header byte order is big. */ \
5609 /* object flags */ \
5610 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5611 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5612 /* section flags */ \
5613 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5614 UNDER, /* Leading symbol underscore. */ \
5615 '/', /* AR_pad_char. */ \
5616 15, /* AR_max_namelen. */ \
5618 /* Data conversion functions. */ \
5619 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5620 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5621 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5623 /* Header conversion functions. */ \
5624 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5625 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5626 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5628 /* bfd_check_format. */ \
5629 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5630 _bfd_dummy_target }, \
5631 /* bfd_set_format. */ \
5632 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
5633 /* bfd_write_contents. */ \
5634 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5637 BFD_JUMP_TABLE_GENERIC (coff), \
5638 BFD_JUMP_TABLE_COPY (coff), \
5639 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5640 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5641 BFD_JUMP_TABLE_SYMBOLS (coff), \
5642 BFD_JUMP_TABLE_RELOCS (coff), \
5643 BFD_JUMP_TABLE_WRITE (coff), \
5644 BFD_JUMP_TABLE_LINK (coff), \
5645 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5652 #define CREATE_BIGHDR_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5653 const bfd_target VAR = \
5656 bfd_target_coff_flavour, \
5657 BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \
5658 BFD_ENDIAN_BIG, /* Header byte order is big. */ \
5659 /* object flags */ \
5660 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5661 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5662 /* section flags */ \
5663 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5664 UNDER, /* Leading symbol underscore. */ \
5665 '/', /* AR_pad_char. */ \
5666 15, /* AR_max_namelen. */ \
5668 /* Data conversion functions. */ \
5669 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5670 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5671 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5673 /* Header conversion functions. */ \
5674 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5675 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5676 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5678 /* bfd_check_format. */ \
5679 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5680 _bfd_dummy_target }, \
5681 /* bfd_set_format. */ \
5682 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
5683 /* bfd_write_contents. */ \
5684 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5687 BFD_JUMP_TABLE_GENERIC (coff), \
5688 BFD_JUMP_TABLE_COPY (coff), \
5689 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5690 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5691 BFD_JUMP_TABLE_SYMBOLS (coff), \
5692 BFD_JUMP_TABLE_RELOCS (coff), \
5693 BFD_JUMP_TABLE_WRITE (coff), \
5694 BFD_JUMP_TABLE_LINK (coff), \
5695 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5702 #define CREATE_LITTLE_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5703 const bfd_target VAR = \
5706 bfd_target_coff_flavour, \
5707 BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \
5708 BFD_ENDIAN_LITTLE, /* Header byte order is little. */ \
5709 /* object flags */ \
5710 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5711 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5712 /* section flags */ \
5713 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5714 UNDER, /* Leading symbol underscore. */ \
5715 '/', /* AR_pad_char. */ \
5716 15, /* AR_max_namelen. */ \
5718 /* Data conversion functions. */ \
5719 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
5720 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
5721 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
5722 /* Header conversion functions. */ \
5723 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
5724 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
5725 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
5726 /* bfd_check_format. */ \
5727 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5728 _bfd_dummy_target }, \
5729 /* bfd_set_format. */ \
5730 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
5731 /* bfd_write_contents. */ \
5732 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5735 BFD_JUMP_TABLE_GENERIC (coff), \
5736 BFD_JUMP_TABLE_COPY (coff), \
5737 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5738 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5739 BFD_JUMP_TABLE_SYMBOLS (coff), \
5740 BFD_JUMP_TABLE_RELOCS (coff), \
5741 BFD_JUMP_TABLE_WRITE (coff), \
5742 BFD_JUMP_TABLE_LINK (coff), \
5743 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \