1 /* Support for the generic parts of most COFF variants, for BFD.
2 Copyright (C) 1990-2022 Free Software Foundation, Inc.
3 Written by Cygnus Support.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
22 /* Most of this hacked by Steve Chamberlain,
28 BFD supports a number of different flavours of coff format.
29 The major differences between formats are the sizes and
30 alignments of fields in structures on disk, and the occasional
33 Coff in all its varieties is implemented with a few common
34 files and a number of implementation specific files. For
35 example, the i386 coff format is implemented in the file
36 @file{coff-i386.c}. This file @code{#include}s
37 @file{coff/i386.h} which defines the external structure of the
38 coff format for the i386, and @file{coff/internal.h} which
39 defines the internal structure. @file{coff-i386.c} also
40 defines the relocations used by the i386 coff format
44 Porting to a new version of coff
46 The recommended method is to select from the existing
47 implementations the version of coff which is most like the one
48 you want to use. For example, we'll say that i386 coff is
49 the one you select, and that your coff flavour is called foo.
50 Copy @file{i386coff.c} to @file{foocoff.c}, copy
51 @file{../include/coff/i386.h} to @file{../include/coff/foo.h},
52 and add the lines to @file{targets.c} and @file{Makefile.in}
53 so that your new back end is used. Alter the shapes of the
54 structures in @file{../include/coff/foo.h} so that they match
55 what you need. You will probably also have to add
56 @code{#ifdef}s to the code in @file{coff/internal.h} and
57 @file{coffcode.h} if your version of coff is too wild.
59 You can verify that your new BFD backend works quite simply by
60 building @file{objdump} from the @file{binutils} directory,
61 and making sure that its version of what's going on and your
62 host system's idea (assuming it has the pretty standard coff
63 dump utility, usually called @code{att-dump} or just
64 @code{dump}) are the same. Then clean up your code, and send
65 what you've done to Cygnus. Then your stuff will be in the
66 next release, and you won't have to keep integrating it.
69 How the coff backend works
74 The Coff backend is split into generic routines that are
75 applicable to any Coff target and routines that are specific
76 to a particular target. The target-specific routines are
77 further split into ones which are basically the same for all
78 Coff targets except that they use the external symbol format
79 or use different values for certain constants.
81 The generic routines are in @file{coffgen.c}. These routines
82 work for any Coff target. They use some hooks into the target
83 specific code; the hooks are in a @code{bfd_coff_backend_data}
84 structure, one of which exists for each target.
86 The essentially similar target-specific routines are in
87 @file{coffcode.h}. This header file includes executable C code.
88 The various Coff targets first include the appropriate Coff
89 header file, make any special defines that are needed, and
90 then include @file{coffcode.h}.
92 Some of the Coff targets then also have additional routines in
93 the target source file itself.
96 Coff long section names
98 In the standard Coff object format, section names are limited to
99 the eight bytes available in the @code{s_name} field of the
100 @code{SCNHDR} section header structure. The format requires the
101 field to be NUL-padded, but not necessarily NUL-terminated, so
102 the longest section names permitted are a full eight characters.
104 The Microsoft PE variants of the Coff object file format add
105 an extension to support the use of long section names. This
106 extension is defined in section 4 of the Microsoft PE/COFF
107 specification (rev 8.1). If a section name is too long to fit
108 into the section header's @code{s_name} field, it is instead
109 placed into the string table, and the @code{s_name} field is
110 filled with a slash ("/") followed by the ASCII decimal
111 representation of the offset of the full name relative to the
114 Note that this implies that the extension can only be used in object
115 files, as executables do not contain a string table. The standard
116 specifies that long section names from objects emitted into executable
117 images are to be truncated.
119 However, as a GNU extension, BFD can generate executable images
120 that contain a string table and long section names. This
121 would appear to be technically valid, as the standard only says
122 that Coff debugging information is deprecated, not forbidden,
123 and in practice it works, although some tools that parse PE files
124 expecting the MS standard format may become confused; @file{PEview} is
127 The functionality is supported in BFD by code implemented under
128 the control of the macro @code{COFF_LONG_SECTION_NAMES}. If not
129 defined, the format does not support long section names in any way.
130 If defined, it is used to initialise a flag,
131 @code{_bfd_coff_long_section_names}, and a hook function pointer,
132 @code{_bfd_coff_set_long_section_names}, in the Coff backend data
133 structure. The flag controls the generation of long section names
134 in output BFDs at runtime; if it is false, as it will be by default
135 when generating an executable image, long section names are truncated;
136 if true, the long section names extension is employed. The hook
137 points to a function that allows the value of the flag to be altered
138 at runtime, on formats that support long section names at all; on
139 other formats it points to a stub that returns an error indication.
141 With input BFDs, the flag is set according to whether any long section
142 names are detected while reading the section headers. For a completely
143 new BFD, the flag is set to the default for the target format. This
144 information can be used by a client of the BFD library when deciding
145 what output format to generate, and means that a BFD that is opened
146 for read and subsequently converted to a writeable BFD and modified
147 in-place will retain whatever format it had on input.
149 If @code{COFF_LONG_SECTION_NAMES} is simply defined (blank), or is
150 defined to the value "1", then long section names are enabled by
151 default; if it is defined to the value zero, they are disabled by
152 default (but still accepted in input BFDs). The header @file{coffcode.h}
153 defines a macro, @code{COFF_DEFAULT_LONG_SECTION_NAMES}, which is
154 used in the backends to initialise the backend data structure fields
155 appropriately; see the comments for further detail.
160 Each flavour of coff supported in BFD has its own header file
161 describing the external layout of the structures. There is also
162 an internal description of the coff layout, in
163 @file{coff/internal.h}. A major function of the
164 coff backend is swapping the bytes and twiddling the bits to
165 translate the external form of the structures into the normal
166 internal form. This is all performed in the
167 @code{bfd_swap}_@i{thing}_@i{direction} routines. Some
168 elements are different sizes between different versions of
169 coff; it is the duty of the coff version specific include file
170 to override the definitions of various packing routines in
171 @file{coffcode.h}. E.g., the size of line number entry in coff is
172 sometimes 16 bits, and sometimes 32 bits. @code{#define}ing
173 @code{PUT_LNSZ_LNNO} and @code{GET_LNSZ_LNNO} will select the
174 correct one. No doubt, some day someone will find a version of
175 coff which has a varying field size not catered to at the
176 moment. To port BFD, that person will have to add more @code{#defines}.
177 Three of the bit twiddling routines are exported to
178 @code{gdb}; @code{coff_swap_aux_in}, @code{coff_swap_sym_in}
179 and @code{coff_swap_lineno_in}. @code{GDB} reads the symbol
180 table on its own, but uses BFD to fix things up. More of the
181 bit twiddlers are exported for @code{gas};
182 @code{coff_swap_aux_out}, @code{coff_swap_sym_out},
183 @code{coff_swap_lineno_out}, @code{coff_swap_reloc_out},
184 @code{coff_swap_filehdr_out}, @code{coff_swap_aouthdr_out},
185 @code{coff_swap_scnhdr_out}. @code{Gas} currently keeps track
186 of all the symbol table and reloc drudgery itself, thereby
187 saving the internal BFD overhead, but uses BFD to swap things
188 on the way out, making cross ports much safer. Doing so also
189 allows BFD (and thus the linker) to use the same header files
190 as @code{gas}, which makes one avenue to disaster disappear.
195 The simple canonical form for symbols used by BFD is not rich
196 enough to keep all the information available in a coff symbol
197 table. The back end gets around this problem by keeping the original
198 symbol table around, "behind the scenes".
200 When a symbol table is requested (through a call to
201 @code{bfd_canonicalize_symtab}), a request gets through to
202 @code{coff_get_normalized_symtab}. This reads the symbol table from
203 the coff file and swaps all the structures inside into the
204 internal form. It also fixes up all the pointers in the table
205 (represented in the file by offsets from the first symbol in
206 the table) into physical pointers to elements in the new
207 internal table. This involves some work since the meanings of
208 fields change depending upon context: a field that is a
209 pointer to another structure in the symbol table at one moment
210 may be the size in bytes of a structure at the next. Another
211 pass is made over the table. All symbols which mark file names
212 (<<C_FILE>> symbols) are modified so that the internal
213 string points to the value in the auxent (the real filename)
214 rather than the normal text associated with the symbol
217 At this time the symbol names are moved around. Coff stores
218 all symbols less than nine characters long physically
219 within the symbol table; longer strings are kept at the end of
220 the file in the string table. This pass moves all strings
221 into memory and replaces them with pointers to the strings.
223 The symbol table is massaged once again, this time to create
224 the canonical table used by the BFD application. Each symbol
225 is inspected in turn, and a decision made (using the
226 @code{sclass} field) about the various flags to set in the
227 @code{asymbol}. @xref{Symbols}. The generated canonical table
228 shares strings with the hidden internal symbol table.
230 Any linenumbers are read from the coff file too, and attached
231 to the symbols which own the functions the linenumbers belong to.
236 Writing a symbol to a coff file which didn't come from a coff
237 file will lose any debugging information. The @code{asymbol}
238 structure remembers the BFD from which the symbol was taken, and on
239 output the back end makes sure that the same destination target as
240 source target is present.
242 When the symbols have come from a coff file then all the
243 debugging information is preserved.
245 Symbol tables are provided for writing to the back end in a
246 vector of pointers to pointers. This allows applications like
247 the linker to accumulate and output large symbol tables
248 without having to do too much byte copying.
250 This function runs through the provided symbol table and
251 patches each symbol marked as a file place holder
252 (@code{C_FILE}) to point to the next file place holder in the
253 list. It also marks each @code{offset} field in the list with
254 the offset from the first symbol of the current symbol.
256 Another function of this procedure is to turn the canonical
257 value form of BFD into the form used by coff. Internally, BFD
258 expects symbol values to be offsets from a section base; so a
259 symbol physically at 0x120, but in a section starting at
260 0x100, would have the value 0x20. Coff expects symbols to
261 contain their final value, so symbols have their values
262 changed at this point to reflect their sum with their owning
263 section. This transformation uses the
264 <<output_section>> field of the @code{asymbol}'s
265 @code{asection} @xref{Sections}.
267 o <<coff_mangle_symbols>>
269 This routine runs though the provided symbol table and uses
270 the offsets generated by the previous pass and the pointers
271 generated when the symbol table was read in to create the
272 structured hierarchy required by coff. It changes each pointer
273 to a symbol into the index into the symbol table of the asymbol.
275 o <<coff_write_symbols>>
277 This routine runs through the symbol table and patches up the
278 symbols from their internal form into the coff way, calls the
279 bit twiddlers, and writes out the table to the file.
288 The hidden information for an <<asymbol>> is described in a
289 <<combined_entry_type>>:
293 .typedef struct coff_ptr_struct
295 . {* Remembers the offset from the first symbol in the file for
296 . this symbol. Generated by coff_renumber_symbols. *}
297 . unsigned int offset;
299 . {* Should the value of this symbol be renumbered. Used for
300 . XCOFF C_BSTAT symbols. Set by coff_slurp_symbol_table. *}
301 . unsigned int fix_value : 1;
303 . {* Should the tag field of this symbol be renumbered.
304 . Created by coff_pointerize_aux. *}
305 . unsigned int fix_tag : 1;
307 . {* Should the endidx field of this symbol be renumbered.
308 . Created by coff_pointerize_aux. *}
309 . unsigned int fix_end : 1;
311 . {* Should the x_csect.x_scnlen field be renumbered.
312 . Created by coff_pointerize_aux. *}
313 . unsigned int fix_scnlen : 1;
315 . {* Fix up an XCOFF C_BINCL/C_EINCL symbol. The value is the
316 . index into the line number entries. Set by coff_slurp_symbol_table. *}
317 . unsigned int fix_line : 1;
319 . {* The container for the symbol structure as read and translated
323 . union internal_auxent auxent;
324 . struct internal_syment syment;
327 . {* Selector for the union above. *}
330 . {* An extra pointer which can used by format based on COFF (like XCOFF)
331 . to provide extra information to their backend. *}
333 .} combined_entry_type;
336 .{* Each canonical asymbol really looks like this: *}
338 .typedef struct coff_symbol_struct
340 . {* The actual symbol which the rest of BFD works with *}
343 . {* A pointer to the hidden information for this symbol *}
344 . combined_entry_type *native;
346 . {* A pointer to the linenumber information for this symbol *}
347 . struct lineno_cache_entry *lineno;
349 . {* Have the line numbers been relocated yet ? *}
355 #include "libiberty.h"
360 #include "coffswap.h"
363 #define STRING_SIZE_SIZE 4
365 #define DOT_DEBUG ".debug"
366 #define DOT_ZDEBUG ".zdebug"
367 #define GNU_LINKONCE_WI ".gnu.linkonce.wi."
368 #define GNU_LINKONCE_WT ".gnu.linkonce.wt."
369 #define DOT_RELOC ".reloc"
371 #if defined(COFF_WITH_PE) || defined(COFF_GO32_EXE) || defined(COFF_GO32)
372 # define COFF_WITH_EXTENDED_RELOC_COUNTER
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 bool bfd_coff_set_long_section_names_allowed
405 #else /* !defined (COFF_LONG_SECTION_NAMES) */
406 static bool 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 bool styp_to_sec_flags
412 (bfd
*, void *, const char *, asection
*, flagword
*);
413 static bool coff_bad_format_hook
415 static void coff_set_custom_section_alignment
416 (bfd
*, asection
*, const struct coff_section_alignment_entry
*,
418 static bool coff_new_section_hook
420 static bool coff_set_arch_mach_hook
422 static bool coff_write_relocs
424 static bool coff_set_flags
425 (bfd
*, unsigned int *, unsigned short *);
426 static bool coff_set_arch_mach
427 (bfd
*, enum bfd_architecture
, unsigned long) ATTRIBUTE_UNUSED
;
428 static bool coff_compute_section_file_positions
430 static bool coff_write_object_contents
431 (bfd
*) ATTRIBUTE_UNUSED
;
432 static bool coff_set_section_contents
433 (bfd
*, asection
*, const void *, file_ptr
, bfd_size_type
);
434 static bool coff_slurp_line_table
436 static bool coff_slurp_symbol_table
438 static enum coff_symbol_classification coff_classify_symbol
439 (bfd
*, struct internal_syment
*);
440 static bool coff_slurp_reloc_table
441 (bfd
*, asection
*, asymbol
**);
442 static long coff_canonicalize_reloc
443 (bfd
*, asection
*, arelent
**, asymbol
**);
444 #ifndef coff_mkobject_hook
445 static void * coff_mkobject_hook
446 (bfd
*, void *, void *);
449 static flagword handle_COMDAT
450 (bfd
*, flagword
, void *, const char *, asection
*);
453 static bool ticoff0_bad_format_hook
455 static bool ticoff1_bad_format_hook
459 /* void warning(); */
461 #if defined (COFF_LONG_SECTION_NAMES)
463 bfd_coff_set_long_section_names_allowed (bfd
*abfd
, int enable
)
465 coff_backend_info (abfd
)->_bfd_coff_long_section_names
= enable
;
468 #else /* !defined (COFF_LONG_SECTION_NAMES) */
470 bfd_coff_set_long_section_names_disallowed (bfd
*abfd
, int enable
)
476 #endif /* defined (COFF_LONG_SECTION_NAMES) */
478 /* Return a word with STYP_* (scnhdr.s_flags) flags set to represent
479 the incoming SEC_* flags. The inverse of this function is
480 styp_to_sec_flags(). NOTE: If you add to/change this routine, you
481 should probably mirror the changes in styp_to_sec_flags(). */
485 /* Macros for setting debugging flags. */
488 #define STYP_XCOFF_DEBUG STYP_DEBUG
490 #define STYP_XCOFF_DEBUG STYP_INFO
493 #ifdef COFF_ALIGN_IN_S_FLAGS
494 #define STYP_DEBUG_INFO STYP_DSECT
496 #define STYP_DEBUG_INFO STYP_INFO
500 sec_to_styp_flags (const char *sec_name
, flagword sec_flags
)
504 if (!strcmp (sec_name
, _TEXT
))
506 styp_flags
= STYP_TEXT
;
508 else if (!strcmp (sec_name
, _DATA
))
510 styp_flags
= STYP_DATA
;
512 else if (!strcmp (sec_name
, _BSS
))
514 styp_flags
= STYP_BSS
;
517 else if (!strcmp (sec_name
, _COMMENT
))
519 styp_flags
= STYP_INFO
;
520 #endif /* _COMMENT */
523 else if (!strcmp (sec_name
, _LIB
))
525 styp_flags
= STYP_LIB
;
529 else if (!strcmp (sec_name
, _LIT
))
531 styp_flags
= STYP_LIT
;
534 else if (startswith (sec_name
, DOT_DEBUG
)
535 || startswith (sec_name
, DOT_ZDEBUG
))
537 /* Handle the XCOFF debug section and DWARF2 debug sections. */
539 styp_flags
= STYP_XCOFF_DEBUG
;
541 styp_flags
= STYP_DEBUG_INFO
;
543 else if (startswith (sec_name
, ".stab"))
545 styp_flags
= STYP_DEBUG_INFO
;
547 #ifdef COFF_LONG_SECTION_NAMES
548 else if (startswith (sec_name
, GNU_LINKONCE_WI
)
549 || startswith (sec_name
, GNU_LINKONCE_WT
))
551 styp_flags
= STYP_DEBUG_INFO
;
555 else if (!strcmp (sec_name
, _TDATA
))
557 styp_flags
= STYP_TDATA
;
559 else if (!strcmp (sec_name
, _TBSS
))
561 styp_flags
= STYP_TBSS
;
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
;
579 else if (sec_flags
& SEC_DEBUGGING
)
583 for (i
= 0; i
< XCOFF_DWSECT_NBR_NAMES
; i
++)
584 if (!strcmp (sec_name
, xcoff_dwsect_names
[i
].xcoff_name
))
586 styp_flags
= STYP_DWARF
| xcoff_dwsect_names
[i
].flag
;
591 /* Try and figure out what it should be */
592 else if (sec_flags
& SEC_CODE
)
594 styp_flags
= STYP_TEXT
;
596 else if (sec_flags
& SEC_DATA
)
598 styp_flags
= STYP_DATA
;
600 else if (sec_flags
& SEC_READONLY
)
602 #ifdef STYP_LIT /* 29k readonly text/data section */
603 styp_flags
= STYP_LIT
;
605 styp_flags
= STYP_TEXT
;
606 #endif /* STYP_LIT */
608 else if (sec_flags
& SEC_LOAD
)
610 styp_flags
= STYP_TEXT
;
612 else if (sec_flags
& SEC_ALLOC
)
614 styp_flags
= STYP_BSS
;
618 if (sec_flags
& SEC_TIC54X_CLINK
)
619 styp_flags
|= STYP_CLINK
;
623 if (sec_flags
& SEC_TIC54X_BLOCK
)
624 styp_flags
|= STYP_BLOCK
;
628 if ((sec_flags
& (SEC_NEVER_LOAD
| SEC_COFF_SHARED_LIBRARY
)) != 0)
629 styp_flags
|= STYP_NOLOAD
;
635 #else /* COFF_WITH_PE */
637 /* The PE version; see above for the general comments. The non-PE
638 case seems to be more guessing, and breaks PE format; specifically,
639 .rdata is readonly, but it sure ain't text. Really, all this
640 should be set up properly in gas (or whatever assembler is in use),
641 and honor whatever objcopy/strip, etc. sent us as input. */
644 sec_to_styp_flags (const char *sec_name
, flagword sec_flags
)
649 if (startswith (sec_name
, DOT_DEBUG
)
650 || startswith (sec_name
, DOT_ZDEBUG
)
651 #ifdef COFF_LONG_SECTION_NAMES
652 || startswith (sec_name
, GNU_LINKONCE_WI
)
653 || startswith (sec_name
, GNU_LINKONCE_WT
)
655 || startswith (sec_name
, ".stab"))
658 /* caution: there are at least three groups of symbols that have
659 very similar bits and meanings: IMAGE_SCN*, SEC_*, and STYP_*.
660 SEC_* are the BFD internal flags, used for generic BFD
661 information. STYP_* are the COFF section flags which appear in
662 COFF files. IMAGE_SCN_* are the PE section flags which appear in
663 PE files. The STYP_* flags and the IMAGE_SCN_* flags overlap,
664 but there are more IMAGE_SCN_* flags. */
666 /* FIXME: There is no gas syntax to specify the debug section flag. */
669 sec_flags
&= (SEC_LINK_ONCE
| SEC_LINK_DUPLICATES_DISCARD
670 | SEC_LINK_DUPLICATES_SAME_CONTENTS
671 | SEC_LINK_DUPLICATES_SAME_SIZE
);
672 sec_flags
|= SEC_DEBUGGING
| SEC_READONLY
;
678 if ((sec_flags
& SEC_CODE
) != 0)
679 styp_flags
|= IMAGE_SCN_CNT_CODE
;
680 if ((sec_flags
& (SEC_DATA
| SEC_DEBUGGING
)) != 0)
681 styp_flags
|= IMAGE_SCN_CNT_INITIALIZED_DATA
;
682 if ((sec_flags
& SEC_ALLOC
) != 0 && (sec_flags
& SEC_LOAD
) == 0)
683 styp_flags
|= IMAGE_SCN_CNT_UNINITIALIZED_DATA
; /* ==STYP_BSS */
685 /* skip constRUCTOR */
687 #ifndef COFF_IMAGE_WITH_PE
688 /* I don't think any of the IMAGE_SCN_LNK_* flags set below should be set
689 when the output is PE. Only object files should have them, for the linker
691 if ((sec_flags
& SEC_IS_COMMON
) != 0)
692 styp_flags
|= IMAGE_SCN_LNK_COMDAT
;
694 if ((sec_flags
& SEC_DEBUGGING
) != 0)
695 styp_flags
|= IMAGE_SCN_MEM_DISCARDABLE
;
696 if ((sec_flags
& (SEC_EXCLUDE
| SEC_NEVER_LOAD
)) != 0 && !is_dbg
)
697 #ifdef COFF_IMAGE_WITH_PE
698 styp_flags
|= IMAGE_SCN_MEM_DISCARDABLE
;
700 styp_flags
|= IMAGE_SCN_LNK_REMOVE
;
704 #ifndef COFF_IMAGE_WITH_PE
705 if (sec_flags
& SEC_LINK_ONCE
)
706 styp_flags
|= IMAGE_SCN_LNK_COMDAT
;
708 & (SEC_LINK_DUPLICATES_DISCARD
| SEC_LINK_DUPLICATES_SAME_CONTENTS
709 | SEC_LINK_DUPLICATES_SAME_SIZE
)) != 0)
710 styp_flags
|= IMAGE_SCN_LNK_COMDAT
;
713 /* skip LINKER_CREATED */
715 if ((sec_flags
& SEC_COFF_NOREAD
) == 0)
716 styp_flags
|= IMAGE_SCN_MEM_READ
; /* Invert NOREAD for read. */
717 if ((sec_flags
& SEC_READONLY
) == 0)
718 styp_flags
|= IMAGE_SCN_MEM_WRITE
; /* Invert READONLY for write. */
719 if (sec_flags
& SEC_CODE
)
720 styp_flags
|= IMAGE_SCN_MEM_EXECUTE
; /* CODE->EXECUTE. */
721 if (sec_flags
& SEC_COFF_SHARED
)
722 styp_flags
|= IMAGE_SCN_MEM_SHARED
; /* Shared remains meaningful. */
727 #endif /* COFF_WITH_PE */
729 /* Return a word with SEC_* flags set to represent the incoming STYP_*
730 flags (from scnhdr.s_flags). The inverse of this function is
731 sec_to_styp_flags(). NOTE: If you add to/change this routine, you
732 should probably mirror the changes in sec_to_styp_flags(). */
737 styp_to_sec_flags (bfd
*abfd
,
740 asection
*section ATTRIBUTE_UNUSED
,
743 struct internal_scnhdr
*internal_s
= (struct internal_scnhdr
*) hdr
;
744 unsigned long styp_flags
= internal_s
->s_flags
;
745 flagword sec_flags
= 0;
748 if (styp_flags
& STYP_BLOCK
)
749 sec_flags
|= SEC_TIC54X_BLOCK
;
753 if (styp_flags
& STYP_CLINK
)
754 sec_flags
|= SEC_TIC54X_CLINK
;
758 if (styp_flags
& STYP_NOLOAD
)
759 sec_flags
|= SEC_NEVER_LOAD
;
760 #endif /* STYP_NOLOAD */
762 /* For 386 COFF, at least, an unloadable text or data section is
763 actually a shared library section. */
764 if (styp_flags
& STYP_TEXT
)
766 if (sec_flags
& SEC_NEVER_LOAD
)
767 sec_flags
|= SEC_CODE
| SEC_COFF_SHARED_LIBRARY
;
769 sec_flags
|= SEC_CODE
| SEC_LOAD
| SEC_ALLOC
;
771 else if (styp_flags
& STYP_DATA
)
773 if (sec_flags
& SEC_NEVER_LOAD
)
774 sec_flags
|= SEC_DATA
| SEC_COFF_SHARED_LIBRARY
;
776 sec_flags
|= SEC_DATA
| SEC_LOAD
| SEC_ALLOC
;
778 else if (styp_flags
& STYP_BSS
)
780 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
781 if (sec_flags
& SEC_NEVER_LOAD
)
782 sec_flags
|= SEC_ALLOC
| SEC_COFF_SHARED_LIBRARY
;
785 sec_flags
|= SEC_ALLOC
;
787 else if (styp_flags
& STYP_INFO
)
789 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
790 defined. coff_compute_section_file_positions uses
791 COFF_PAGE_SIZE to ensure that the low order bits of the
792 section VMA and the file offset match. If we don't know
793 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
794 and demand page loading of the file will fail. */
795 #if defined (COFF_PAGE_SIZE) && !defined (COFF_ALIGN_IN_S_FLAGS)
796 sec_flags
|= SEC_DEBUGGING
;
799 else if (styp_flags
& STYP_PAD
)
802 else if (styp_flags
& STYP_TDATA
)
804 if (sec_flags
& SEC_NEVER_LOAD
)
805 sec_flags
|= SEC_DATA
| SEC_THREAD_LOCAL
| SEC_COFF_SHARED_LIBRARY
;
807 sec_flags
|= SEC_DATA
| SEC_THREAD_LOCAL
| SEC_LOAD
| SEC_ALLOC
;
809 else if (styp_flags
& STYP_TBSS
)
811 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
812 if (sec_flags
& SEC_NEVER_LOAD
)
813 sec_flags
|= SEC_ALLOC
| SEC_THREAD_LOCAL
| SEC_COFF_SHARED_LIBRARY
;
816 sec_flags
|= SEC_ALLOC
| SEC_THREAD_LOCAL
;
818 else if (styp_flags
& STYP_EXCEPT
)
819 sec_flags
|= SEC_LOAD
;
820 else if (styp_flags
& STYP_LOADER
)
821 sec_flags
|= SEC_LOAD
;
822 else if (styp_flags
& STYP_TYPCHK
)
823 sec_flags
|= SEC_LOAD
;
824 else if (styp_flags
& STYP_DWARF
)
825 sec_flags
|= SEC_DEBUGGING
;
827 else if (strcmp (name
, _TEXT
) == 0)
829 if (sec_flags
& SEC_NEVER_LOAD
)
830 sec_flags
|= SEC_CODE
| SEC_COFF_SHARED_LIBRARY
;
832 sec_flags
|= SEC_CODE
| SEC_LOAD
| SEC_ALLOC
;
834 else if (strcmp (name
, _DATA
) == 0)
836 if (sec_flags
& SEC_NEVER_LOAD
)
837 sec_flags
|= SEC_DATA
| SEC_COFF_SHARED_LIBRARY
;
839 sec_flags
|= SEC_DATA
| SEC_LOAD
| SEC_ALLOC
;
841 else if (strcmp (name
, _BSS
) == 0)
843 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
844 if (sec_flags
& SEC_NEVER_LOAD
)
845 sec_flags
|= SEC_ALLOC
| SEC_COFF_SHARED_LIBRARY
;
848 sec_flags
|= SEC_ALLOC
;
850 else if (startswith (name
, DOT_DEBUG
)
851 || startswith (name
, DOT_ZDEBUG
)
853 || strcmp (name
, _COMMENT
) == 0
855 #ifdef COFF_LONG_SECTION_NAMES
856 || startswith (name
, GNU_LINKONCE_WI
)
857 || startswith (name
, GNU_LINKONCE_WT
)
859 || startswith (name
, ".stab"))
861 #ifdef COFF_PAGE_SIZE
862 sec_flags
|= SEC_DEBUGGING
;
866 else if (strcmp (name
, _LIB
) == 0)
870 else if (strcmp (name
, _LIT
) == 0)
871 sec_flags
= SEC_LOAD
| SEC_ALLOC
| SEC_READONLY
;
874 sec_flags
|= SEC_ALLOC
| SEC_LOAD
;
876 #ifdef STYP_LIT /* A29k readonly text/data section type. */
877 if ((styp_flags
& STYP_LIT
) == STYP_LIT
)
878 sec_flags
= (SEC_LOAD
| SEC_ALLOC
| SEC_READONLY
);
879 #endif /* STYP_LIT */
881 #ifdef STYP_OTHER_LOAD /* Other loaded sections. */
882 if (styp_flags
& STYP_OTHER_LOAD
)
883 sec_flags
= (SEC_LOAD
| SEC_ALLOC
);
884 #endif /* STYP_SDATA */
886 if ((bfd_applicable_section_flags (abfd
) & SEC_SMALL_DATA
) != 0
887 && (startswith (name
, ".sbss")
888 || startswith (name
, ".sdata")))
889 sec_flags
|= SEC_SMALL_DATA
;
891 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
892 /* As a GNU extension, if the name begins with .gnu.linkonce, we
893 only link a single copy of the section. This is used to support
894 g++. g++ will emit each template expansion in its own section.
895 The symbols will be defined as weak, so that multiple definitions
896 are permitted. The GNU linker extension is to actually discard
897 all but one of the sections. */
898 if (startswith (name
, ".gnu.linkonce"))
899 sec_flags
|= SEC_LINK_ONCE
| SEC_LINK_DUPLICATES_DISCARD
;
902 if (flags_ptr
== NULL
)
905 * flags_ptr
= sec_flags
;
909 #else /* COFF_WITH_PE */
912 handle_COMDAT (bfd
* abfd
,
918 struct internal_scnhdr
*internal_s
= (struct internal_scnhdr
*) hdr
;
919 bfd_byte
*esymstart
, *esym
, *esymend
;
921 char *target_name
= NULL
;
923 sec_flags
|= SEC_LINK_ONCE
;
925 /* Unfortunately, the PE format stores essential information in
926 the symbol table, of all places. We need to extract that
927 information now, so that objdump and the linker will know how
928 to handle the section without worrying about the symbols. We
929 can't call slurp_symtab, because the linker doesn't want the
932 /* COMDAT sections are special. The first symbol is the section
933 symbol, which tells what kind of COMDAT section it is. The
934 second symbol is the "comdat symbol" - the one with the
935 unique name. GNU uses the section symbol for the unique
936 name; MS uses ".text" for every comdat section. Sigh. - DJ */
938 /* This is not mirrored in sec_to_styp_flags(), but there
939 doesn't seem to be a need to, either, and it would at best be
942 if (! _bfd_coff_get_external_symbols (abfd
))
945 esymstart
= esym
= (bfd_byte
*) obj_coff_external_syms (abfd
);
946 esymend
= esym
+ obj_raw_syment_count (abfd
) * bfd_coff_symesz (abfd
);
948 while (esym
< esymend
)
950 struct internal_syment isym
;
951 char buf
[SYMNMLEN
+ 1];
954 bfd_coff_swap_sym_in (abfd
, esym
, & isym
);
956 BFD_ASSERT (sizeof (internal_s
->s_name
) <= SYMNMLEN
);
958 if (isym
.n_scnum
== section
->target_index
)
960 /* According to the MSVC documentation, the first
961 TWO entries with the section # are both of
962 interest to us. The first one is the "section
963 symbol" (section name). The second is the comdat
964 symbol name. Here, we've found the first
965 qualifying entry; we distinguish it from the
966 second with a state flag.
968 In the case of gas-generated (at least until that
969 is fixed) .o files, it isn't necessarily the
970 second one. It may be some other later symbol.
972 Since gas also doesn't follow MS conventions and
973 emits the section similar to .text$<name>, where
974 <something> is the name we're looking for, we
975 distinguish the two as follows:
977 If the section name is simply a section name (no
978 $) we presume it's MS-generated, and look at
979 precisely the second symbol for the comdat name.
980 If the section name has a $, we assume it's
981 gas-generated, and look for <something> (whatever
982 follows the $) as the comdat symbol. */
984 /* All 3 branches use this. */
985 symname
= _bfd_coff_internal_syment_name (abfd
, &isym
, buf
);
987 /* PR 17512 file: 078-11867-0.004 */
990 _bfd_error_handler (_("%pB: unable to load COMDAT section name"),
999 /* The first time we've seen the symbol. */
1000 union internal_auxent aux
;
1002 /* If it isn't the stuff we're expecting, die;
1003 The MS documentation is vague, but it
1004 appears that the second entry serves BOTH
1005 as the comdat symbol and the defining
1006 symbol record (either C_STAT or C_EXT,
1007 possibly with an aux entry with debug
1008 information if it's a function.) It
1009 appears the only way to find the second one
1010 is to count. (On Intel, they appear to be
1011 adjacent, but on Alpha, they have been
1014 Here, we think we've found the first one,
1015 but there's some checking we can do to be
1018 if (! ((isym
.n_sclass
== C_STAT
1019 || isym
.n_sclass
== C_EXT
)
1020 && BTYPE (isym
.n_type
) == T_NULL
1021 && isym
.n_value
== 0))
1023 /* Malformed input files can trigger this test.
1025 _bfd_error_handler (_("%pB: error: unexpected symbol '%s' in COMDAT section"),
1030 /* FIXME LATER: MSVC generates section names
1031 like .text for comdats. Gas generates
1032 names like .text$foo__Fv (in the case of a
1033 function). See comment above for more. */
1035 if (isym
.n_sclass
== C_STAT
&& strcmp (name
, symname
) != 0)
1036 /* xgettext:c-format */
1037 _bfd_error_handler (_("%pB: warning: COMDAT symbol '%s'"
1038 " does not match section name '%s'"),
1039 abfd
, symname
, name
);
1043 /* PR 17512: file: e2cfe54f. */
1044 if (esym
+ bfd_coff_symesz (abfd
) >= esymend
)
1046 /* xgettext:c-format */
1047 _bfd_error_handler (_("%pB: warning: no symbol for"
1048 " section '%s' found"),
1052 /* This is the section symbol. */
1053 bfd_coff_swap_aux_in (abfd
, (esym
+ bfd_coff_symesz (abfd
)),
1054 isym
.n_type
, isym
.n_sclass
,
1055 0, isym
.n_numaux
, & aux
);
1057 target_name
= strchr (name
, '$');
1058 if (target_name
!= NULL
)
1066 /* FIXME: Microsoft uses NODUPLICATES and
1067 ASSOCIATIVE, but gnu uses ANY and
1068 SAME_SIZE. Unfortunately, gnu doesn't do
1069 the comdat symbols right. So, until we can
1070 fix it to do the right thing, we are
1071 temporarily disabling comdats for the MS
1072 types (they're used in DLLs and C++, but we
1073 don't support *their* C++ libraries anyway
1076 /* Cygwin does not follow the MS style, and
1077 uses ANY and SAME_SIZE where NODUPLICATES
1078 and ASSOCIATIVE should be used. For
1079 Interix, we just do the right thing up
1082 switch (aux
.x_scn
.x_comdat
)
1084 case IMAGE_COMDAT_SELECT_NODUPLICATES
:
1085 #ifdef STRICT_PE_FORMAT
1086 sec_flags
|= SEC_LINK_DUPLICATES_ONE_ONLY
;
1088 sec_flags
&= ~SEC_LINK_ONCE
;
1092 case IMAGE_COMDAT_SELECT_ANY
:
1093 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
1096 case IMAGE_COMDAT_SELECT_SAME_SIZE
:
1097 sec_flags
|= SEC_LINK_DUPLICATES_SAME_SIZE
;
1100 case IMAGE_COMDAT_SELECT_EXACT_MATCH
:
1101 /* Not yet fully implemented ??? */
1102 sec_flags
|= SEC_LINK_DUPLICATES_SAME_CONTENTS
;
1105 /* debug$S gets this case; other
1108 /* There may be no symbol... we'll search
1109 the whole table... Is this the right
1110 place to play this game? Or should we do
1111 it when reading it in. */
1112 case IMAGE_COMDAT_SELECT_ASSOCIATIVE
:
1113 #ifdef STRICT_PE_FORMAT
1114 /* FIXME: This is not currently implemented. */
1115 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
1117 sec_flags
&= ~SEC_LINK_ONCE
;
1121 default: /* 0 means "no symbol" */
1122 /* debug$F gets this case; other
1124 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
1131 /* Gas mode: the first matching on partial name. */
1133 #ifndef TARGET_UNDERSCORE
1134 #define TARGET_UNDERSCORE 0
1136 /* Is this the name we're looking for ? */
1137 if (strcmp (target_name
,
1138 symname
+ (TARGET_UNDERSCORE
? 1 : 0)) != 0)
1140 /* Not the name we're looking for */
1141 esym
+= (isym
.n_numaux
+ 1) * bfd_coff_symesz (abfd
);
1146 /* MSVC mode: the lexically second symbol (or
1147 drop through from the above). */
1152 /* This must the second symbol with the
1153 section #. It is the actual symbol name.
1154 Intel puts the two adjacent, but Alpha (at
1155 least) spreads them out. */
1157 amt
= sizeof (struct coff_comdat_info
);
1158 coff_section_data (abfd
, section
)->comdat
1159 = (struct coff_comdat_info
*) bfd_alloc (abfd
, amt
);
1160 if (coff_section_data (abfd
, section
)->comdat
== NULL
)
1163 coff_section_data (abfd
, section
)->comdat
->symbol
=
1164 (esym
- esymstart
) / bfd_coff_symesz (abfd
);
1166 amt
= strlen (symname
) + 1;
1167 newname
= (char *) bfd_alloc (abfd
, amt
);
1168 if (newname
== NULL
)
1171 strcpy (newname
, symname
);
1172 coff_section_data (abfd
, section
)->comdat
->name
1180 esym
+= (isym
.n_numaux
+ 1) * bfd_coff_symesz (abfd
);
1188 /* The PE version; see above for the general comments.
1190 Since to set the SEC_LINK_ONCE and associated flags, we have to
1191 look at the symbol table anyway, we return the symbol table index
1192 of the symbol being used as the COMDAT symbol. This is admittedly
1193 ugly, but there's really nowhere else that we have access to the
1194 required information. FIXME: Is the COMDAT symbol index used for
1195 any purpose other than objdump? */
1198 styp_to_sec_flags (bfd
*abfd
,
1202 flagword
*flags_ptr
)
1204 struct internal_scnhdr
*internal_s
= (struct internal_scnhdr
*) hdr
;
1205 unsigned long styp_flags
= internal_s
->s_flags
;
1208 bool is_dbg
= false;
1210 if (startswith (name
, DOT_DEBUG
)
1211 || startswith (name
, DOT_ZDEBUG
)
1212 #ifdef COFF_LONG_SECTION_NAMES
1213 || startswith (name
, GNU_LINKONCE_WI
)
1214 || startswith (name
, GNU_LINKONCE_WT
)
1215 /* FIXME: These definitions ought to be in a header file. */
1216 #define GNU_DEBUGLINK ".gnu_debuglink"
1217 #define GNU_DEBUGALTLINK ".gnu_debugaltlink"
1218 || startswith (name
, GNU_DEBUGLINK
)
1219 || startswith (name
, GNU_DEBUGALTLINK
)
1221 || startswith (name
, ".stab"))
1223 /* Assume read only unless IMAGE_SCN_MEM_WRITE is specified. */
1224 sec_flags
= SEC_READONLY
;
1226 /* If section disallows read, then set the NOREAD flag. */
1227 if ((styp_flags
& IMAGE_SCN_MEM_READ
) == 0)
1228 sec_flags
|= SEC_COFF_NOREAD
;
1230 /* Process each flag bit in styp_flags in turn. */
1233 unsigned long flag
= styp_flags
& - styp_flags
;
1234 char * unhandled
= NULL
;
1236 styp_flags
&= ~ flag
;
1238 /* We infer from the distinct read/write/execute bits the settings
1239 of some of the bfd flags; the actual values, should we need them,
1240 are also in pei_section_data (abfd, section)->pe_flags. */
1245 unhandled
= "STYP_DSECT";
1248 unhandled
= "STYP_GROUP";
1251 unhandled
= "STYP_COPY";
1254 unhandled
= "STYP_OVER";
1256 #ifdef SEC_NEVER_LOAD
1258 sec_flags
|= SEC_NEVER_LOAD
;
1261 case IMAGE_SCN_MEM_READ
:
1262 sec_flags
&= ~SEC_COFF_NOREAD
;
1264 case IMAGE_SCN_TYPE_NO_PAD
:
1267 case IMAGE_SCN_LNK_OTHER
:
1268 unhandled
= "IMAGE_SCN_LNK_OTHER";
1270 case IMAGE_SCN_MEM_NOT_CACHED
:
1271 unhandled
= "IMAGE_SCN_MEM_NOT_CACHED";
1273 case IMAGE_SCN_MEM_NOT_PAGED
:
1274 /* Generate a warning message rather using the 'unhandled'
1275 variable as this will allow some .sys files generate by
1276 other toolchains to be processed. See bugzilla issue 196. */
1277 /* xgettext:c-format */
1278 _bfd_error_handler (_("%pB: warning: ignoring section flag"
1279 " %s in section %s"),
1280 abfd
, "IMAGE_SCN_MEM_NOT_PAGED", name
);
1282 case IMAGE_SCN_MEM_EXECUTE
:
1283 sec_flags
|= SEC_CODE
;
1285 case IMAGE_SCN_MEM_WRITE
:
1286 sec_flags
&= ~ SEC_READONLY
;
1288 case IMAGE_SCN_MEM_DISCARDABLE
:
1289 /* The MS PE spec says that debug sections are DISCARDABLE,
1290 but the presence of a DISCARDABLE flag does not necessarily
1291 mean that a given section contains debug information. Thus
1292 we only set the SEC_DEBUGGING flag on sections that we
1293 recognise as containing debug information. */
1296 || strcmp (name
, _COMMENT
) == 0
1300 sec_flags
|= SEC_DEBUGGING
| SEC_READONLY
;
1303 case IMAGE_SCN_MEM_SHARED
:
1304 sec_flags
|= SEC_COFF_SHARED
;
1306 case IMAGE_SCN_LNK_REMOVE
:
1308 sec_flags
|= SEC_EXCLUDE
;
1310 case IMAGE_SCN_CNT_CODE
:
1311 sec_flags
|= SEC_CODE
| SEC_ALLOC
| SEC_LOAD
;
1313 case IMAGE_SCN_CNT_INITIALIZED_DATA
:
1315 sec_flags
|= SEC_DEBUGGING
;
1317 sec_flags
|= SEC_DATA
| SEC_ALLOC
| SEC_LOAD
;
1319 case IMAGE_SCN_CNT_UNINITIALIZED_DATA
:
1320 sec_flags
|= SEC_ALLOC
;
1322 case IMAGE_SCN_LNK_INFO
:
1323 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
1324 defined. coff_compute_section_file_positions uses
1325 COFF_PAGE_SIZE to ensure that the low order bits of the
1326 section VMA and the file offset match. If we don't know
1327 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
1328 and demand page loading of the file will fail. */
1329 #ifdef COFF_PAGE_SIZE
1330 sec_flags
|= SEC_DEBUGGING
;
1333 case IMAGE_SCN_LNK_COMDAT
:
1334 /* COMDAT gets very special treatment. */
1335 sec_flags
= handle_COMDAT (abfd
, sec_flags
, hdr
, name
, section
);
1338 /* Silently ignore for now. */
1342 /* If the section flag was not handled, report it here. */
1343 if (unhandled
!= NULL
)
1346 /* xgettext:c-format */
1347 (_("%pB (%s): section flag %s (%#lx) ignored"),
1348 abfd
, name
, unhandled
, flag
);
1353 if ((bfd_applicable_section_flags (abfd
) & SEC_SMALL_DATA
) != 0
1354 && (startswith (name
, ".sbss")
1355 || startswith (name
, ".sdata")))
1356 sec_flags
|= SEC_SMALL_DATA
;
1358 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
1359 /* As a GNU extension, if the name begins with .gnu.linkonce, we
1360 only link a single copy of the section. This is used to support
1361 g++. g++ will emit each template expansion in its own section.
1362 The symbols will be defined as weak, so that multiple definitions
1363 are permitted. The GNU linker extension is to actually discard
1364 all but one of the sections. */
1365 if (startswith (name
, ".gnu.linkonce"))
1366 sec_flags
|= SEC_LINK_ONCE
| SEC_LINK_DUPLICATES_DISCARD
;
1370 * flags_ptr
= sec_flags
;
1375 #endif /* COFF_WITH_PE */
1377 #define get_index(symbol) ((symbol)->udata.i)
1381 bfd_coff_backend_data
1385 .{* COFF symbol classifications. *}
1387 .enum coff_symbol_classification
1389 . {* Global symbol. *}
1390 . COFF_SYMBOL_GLOBAL,
1391 . {* Common symbol. *}
1392 . COFF_SYMBOL_COMMON,
1393 . {* Undefined symbol. *}
1394 . COFF_SYMBOL_UNDEFINED,
1395 . {* Local symbol. *}
1396 . COFF_SYMBOL_LOCAL,
1397 . {* PE section symbol. *}
1398 . COFF_SYMBOL_PE_SECTION
1401 .typedef asection * (*coff_gc_mark_hook_fn)
1402 . (asection *, struct bfd_link_info *, struct internal_reloc *,
1403 . struct coff_link_hash_entry *, struct internal_syment *);
1405 Special entry points for gdb to swap in coff symbol table parts:
1408 . void (*_bfd_coff_swap_aux_in)
1409 . (bfd *, void *, int, int, int, int, void *);
1411 . void (*_bfd_coff_swap_sym_in)
1412 . (bfd *, void *, void *);
1414 . void (*_bfd_coff_swap_lineno_in)
1415 . (bfd *, void *, void *);
1417 . unsigned int (*_bfd_coff_swap_aux_out)
1418 . (bfd *, void *, int, int, int, int, void *);
1420 . unsigned int (*_bfd_coff_swap_sym_out)
1421 . (bfd *, void *, void *);
1423 . unsigned int (*_bfd_coff_swap_lineno_out)
1424 . (bfd *, void *, void *);
1426 . unsigned int (*_bfd_coff_swap_reloc_out)
1427 . (bfd *, void *, void *);
1429 . unsigned int (*_bfd_coff_swap_filehdr_out)
1430 . (bfd *, void *, void *);
1432 . unsigned int (*_bfd_coff_swap_aouthdr_out)
1433 . (bfd *, void *, void *);
1435 . unsigned int (*_bfd_coff_swap_scnhdr_out)
1436 . (bfd *, void *, void *);
1438 . unsigned int _bfd_filhsz;
1439 . unsigned int _bfd_aoutsz;
1440 . unsigned int _bfd_scnhsz;
1441 . unsigned int _bfd_symesz;
1442 . unsigned int _bfd_auxesz;
1443 . unsigned int _bfd_relsz;
1444 . unsigned int _bfd_linesz;
1445 . unsigned int _bfd_filnmlen;
1446 . bool _bfd_coff_long_filenames;
1448 . bool _bfd_coff_long_section_names;
1449 . bool (*_bfd_coff_set_long_section_names)
1452 . unsigned int _bfd_coff_default_section_alignment_power;
1453 . bool _bfd_coff_force_symnames_in_strings;
1454 . unsigned int _bfd_coff_debug_string_prefix_length;
1455 . unsigned int _bfd_coff_max_nscns;
1457 . void (*_bfd_coff_swap_filehdr_in)
1458 . (bfd *, void *, void *);
1460 . void (*_bfd_coff_swap_aouthdr_in)
1461 . (bfd *, void *, void *);
1463 . void (*_bfd_coff_swap_scnhdr_in)
1464 . (bfd *, void *, void *);
1466 . void (*_bfd_coff_swap_reloc_in)
1467 . (bfd *abfd, void *, void *);
1469 . bool (*_bfd_coff_bad_format_hook)
1472 . bool (*_bfd_coff_set_arch_mach_hook)
1475 . void * (*_bfd_coff_mkobject_hook)
1476 . (bfd *, void *, void *);
1478 . bool (*_bfd_styp_to_sec_flags_hook)
1479 . (bfd *, void *, const char *, asection *, flagword *);
1481 . void (*_bfd_set_alignment_hook)
1482 . (bfd *, asection *, void *);
1484 . bool (*_bfd_coff_slurp_symbol_table)
1487 . bool (*_bfd_coff_symname_in_debug)
1488 . (bfd *, struct internal_syment *);
1490 . bool (*_bfd_coff_pointerize_aux_hook)
1491 . (bfd *, combined_entry_type *, combined_entry_type *,
1492 . unsigned int, combined_entry_type *);
1494 . bool (*_bfd_coff_print_aux)
1495 . (bfd *, FILE *, combined_entry_type *, combined_entry_type *,
1496 . combined_entry_type *, unsigned int);
1498 . void (*_bfd_coff_reloc16_extra_cases)
1499 . (bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *,
1500 . bfd_byte *, unsigned int *, unsigned int *);
1502 . int (*_bfd_coff_reloc16_estimate)
1503 . (bfd *, asection *, arelent *, unsigned int,
1504 . struct bfd_link_info *);
1506 . enum coff_symbol_classification (*_bfd_coff_classify_symbol)
1507 . (bfd *, struct internal_syment *);
1509 . bool (*_bfd_coff_compute_section_file_positions)
1512 . bool (*_bfd_coff_start_final_link)
1513 . (bfd *, struct bfd_link_info *);
1515 . bool (*_bfd_coff_relocate_section)
1516 . (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
1517 . struct internal_reloc *, struct internal_syment *, asection **);
1519 . reloc_howto_type *(*_bfd_coff_rtype_to_howto)
1520 . (bfd *, asection *, struct internal_reloc *,
1521 . struct coff_link_hash_entry *, struct internal_syment *, bfd_vma *);
1523 . bool (*_bfd_coff_adjust_symndx)
1524 . (bfd *, struct bfd_link_info *, bfd *, asection *,
1525 . struct internal_reloc *, bool *);
1527 . bool (*_bfd_coff_link_add_one_symbol)
1528 . (struct bfd_link_info *, bfd *, const char *, flagword,
1529 . asection *, bfd_vma, const char *, bool, bool,
1530 . struct bfd_link_hash_entry **);
1532 . bool (*_bfd_coff_link_output_has_begun)
1533 . (bfd *, struct coff_final_link_info *);
1535 . bool (*_bfd_coff_final_link_postscript)
1536 . (bfd *, struct coff_final_link_info *);
1538 . bool (*_bfd_coff_print_pdata)
1541 .} bfd_coff_backend_data;
1543 .#define coff_backend_info(abfd) \
1544 . ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
1546 .#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \
1547 . ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i))
1549 .#define bfd_coff_swap_sym_in(a,e,i) \
1550 . ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))
1552 .#define bfd_coff_swap_lineno_in(a,e,i) \
1553 . ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))
1555 .#define bfd_coff_swap_reloc_out(abfd, i, o) \
1556 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))
1558 .#define bfd_coff_swap_lineno_out(abfd, i, o) \
1559 . ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))
1561 .#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \
1562 . ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o))
1564 .#define bfd_coff_swap_sym_out(abfd, i,o) \
1565 . ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))
1567 .#define bfd_coff_swap_scnhdr_out(abfd, i,o) \
1568 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))
1570 .#define bfd_coff_swap_filehdr_out(abfd, i,o) \
1571 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))
1573 .#define bfd_coff_swap_aouthdr_out(abfd, i,o) \
1574 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
1576 .#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
1577 .#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
1578 .#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
1579 .#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
1580 .#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
1581 .#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz)
1582 .#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
1583 .#define bfd_coff_filnmlen(abfd) (coff_backend_info (abfd)->_bfd_filnmlen)
1584 .#define bfd_coff_long_filenames(abfd) \
1585 . (coff_backend_info (abfd)->_bfd_coff_long_filenames)
1586 .#define bfd_coff_long_section_names(abfd) \
1587 . (coff_backend_info (abfd)->_bfd_coff_long_section_names)
1588 .#define bfd_coff_set_long_section_names(abfd, enable) \
1589 . ((coff_backend_info (abfd)->_bfd_coff_set_long_section_names) (abfd, enable))
1590 .#define bfd_coff_default_section_alignment_power(abfd) \
1591 . (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power)
1592 .#define bfd_coff_max_nscns(abfd) \
1593 . (coff_backend_info (abfd)->_bfd_coff_max_nscns)
1595 .#define bfd_coff_swap_filehdr_in(abfd, i,o) \
1596 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
1598 .#define bfd_coff_swap_aouthdr_in(abfd, i,o) \
1599 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))
1601 .#define bfd_coff_swap_scnhdr_in(abfd, i,o) \
1602 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
1604 .#define bfd_coff_swap_reloc_in(abfd, i, o) \
1605 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))
1607 .#define bfd_coff_bad_format_hook(abfd, filehdr) \
1608 . ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
1610 .#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
1611 . ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
1612 .#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\
1613 . ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook)\
1614 . (abfd, filehdr, aouthdr))
1616 .#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section, flags_ptr)\
1617 . ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\
1618 . (abfd, scnhdr, name, section, flags_ptr))
1620 .#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
1621 . ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
1623 .#define bfd_coff_slurp_symbol_table(abfd)\
1624 . ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))
1626 .#define bfd_coff_symname_in_debug(abfd, sym)\
1627 . ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
1629 .#define bfd_coff_force_symnames_in_strings(abfd)\
1630 . (coff_backend_info (abfd)->_bfd_coff_force_symnames_in_strings)
1632 .#define bfd_coff_debug_string_prefix_length(abfd)\
1633 . (coff_backend_info (abfd)->_bfd_coff_debug_string_prefix_length)
1635 .#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\
1636 . ((coff_backend_info (abfd)->_bfd_coff_print_aux)\
1637 . (abfd, file, base, symbol, aux, indaux))
1639 .#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order,\
1640 . reloc, data, src_ptr, dst_ptr)\
1641 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
1642 . (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))
1644 .#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\
1645 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
1646 . (abfd, section, reloc, shrink, link_info))
1648 .#define bfd_coff_classify_symbol(abfd, sym)\
1649 . ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\
1652 .#define bfd_coff_compute_section_file_positions(abfd)\
1653 . ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
1656 .#define bfd_coff_start_final_link(obfd, info)\
1657 . ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\
1659 .#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
1660 . ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
1661 . (obfd, info, ibfd, o, con, rel, isyms, secs))
1662 .#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\
1663 . ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\
1664 . (abfd, sec, rel, h, sym, addendp))
1665 .#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\
1666 . ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\
1667 . (obfd, info, ibfd, sec, rel, adjustedp))
1668 .#define bfd_coff_link_add_one_symbol(info, abfd, name, flags, section,\
1669 . value, string, cp, coll, hashp)\
1670 . ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\
1671 . (info, abfd, name, flags, section, value, string, cp, coll, hashp))
1673 .#define bfd_coff_link_output_has_begun(a,p) \
1674 . ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a, p))
1675 .#define bfd_coff_final_link_postscript(a,p) \
1676 . ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a, p))
1678 .#define bfd_coff_have_print_pdata(a) \
1679 . (coff_backend_info (a)->_bfd_coff_print_pdata)
1680 .#define bfd_coff_print_pdata(a,p) \
1681 . ((coff_backend_info (a)->_bfd_coff_print_pdata) (a, p))
1683 .{* Macro: Returns true if the bfd is a PE executable as opposed to a
1684 . PE object file. *}
1685 .#define bfd_pei_p(abfd) \
1686 . (startswith ((abfd)->xvec->name, "pei-"))
1689 /* See whether the magic number matches. */
1692 coff_bad_format_hook (bfd
* abfd ATTRIBUTE_UNUSED
, void * filehdr
)
1694 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1696 if (BADMAG (*internal_f
))
1704 ticoff0_bad_format_hook (bfd
*abfd ATTRIBUTE_UNUSED
, void * filehdr
)
1706 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1708 if (COFF0_BADMAG (*internal_f
))
1717 ticoff1_bad_format_hook (bfd
*abfd ATTRIBUTE_UNUSED
, void * filehdr
)
1719 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1721 if (COFF1_BADMAG (*internal_f
))
1728 /* Check whether this section uses an alignment other than the
1732 coff_set_custom_section_alignment (bfd
*abfd ATTRIBUTE_UNUSED
,
1734 const struct coff_section_alignment_entry
*alignment_table
,
1735 const unsigned int table_size
)
1737 const unsigned int default_alignment
= COFF_DEFAULT_SECTION_ALIGNMENT_POWER
;
1740 for (i
= 0; i
< table_size
; ++i
)
1742 const char *secname
= bfd_section_name (section
);
1744 if (alignment_table
[i
].comparison_length
== (unsigned int) -1
1745 ? strcmp (alignment_table
[i
].name
, secname
) == 0
1746 : strncmp (alignment_table
[i
].name
, secname
,
1747 alignment_table
[i
].comparison_length
) == 0)
1750 if (i
>= table_size
)
1753 if (alignment_table
[i
].default_alignment_min
!= COFF_ALIGNMENT_FIELD_EMPTY
1754 && default_alignment
< alignment_table
[i
].default_alignment_min
)
1757 if (alignment_table
[i
].default_alignment_max
!= COFF_ALIGNMENT_FIELD_EMPTY
1758 #if COFF_DEFAULT_SECTION_ALIGNMENT_POWER != 0
1759 && default_alignment
> alignment_table
[i
].default_alignment_max
1764 section
->alignment_power
= alignment_table
[i
].alignment_power
;
1767 /* Custom section alignment records. */
1769 static const struct coff_section_alignment_entry
1770 coff_section_alignment_table
[] =
1772 #ifdef COFF_SECTION_ALIGNMENT_ENTRIES
1773 COFF_SECTION_ALIGNMENT_ENTRIES
,
1775 /* There must not be any gaps between .stabstr sections. */
1776 { COFF_SECTION_NAME_PARTIAL_MATCH (".stabstr"),
1777 1, COFF_ALIGNMENT_FIELD_EMPTY
, 0 },
1778 /* The .stab section must be aligned to 2**2 at most, to avoid gaps. */
1779 { COFF_SECTION_NAME_PARTIAL_MATCH (".stab"),
1780 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 },
1781 /* Similarly for the .ctors and .dtors sections. */
1782 { COFF_SECTION_NAME_EXACT_MATCH (".ctors"),
1783 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 },
1784 { COFF_SECTION_NAME_EXACT_MATCH (".dtors"),
1785 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 }
1788 static const unsigned int coff_section_alignment_table_size
=
1789 sizeof coff_section_alignment_table
/ sizeof coff_section_alignment_table
[0];
1791 /* Initialize a section structure with information peculiar to this
1792 particular implementation of COFF. */
1795 coff_new_section_hook (bfd
* abfd
, asection
* section
)
1797 combined_entry_type
*native
;
1799 unsigned char sclass
= C_STAT
;
1801 section
->alignment_power
= COFF_DEFAULT_SECTION_ALIGNMENT_POWER
;
1804 if (bfd_xcoff_text_align_power (abfd
) != 0
1805 && strcmp (bfd_section_name (section
), ".text") == 0)
1806 section
->alignment_power
= bfd_xcoff_text_align_power (abfd
);
1807 else if (bfd_xcoff_data_align_power (abfd
) != 0
1808 && strcmp (bfd_section_name (section
), ".data") == 0)
1809 section
->alignment_power
= bfd_xcoff_data_align_power (abfd
);
1814 for (i
= 0; i
< XCOFF_DWSECT_NBR_NAMES
; i
++)
1815 if (strcmp (bfd_section_name (section
),
1816 xcoff_dwsect_names
[i
].xcoff_name
) == 0)
1818 section
->alignment_power
= 0;
1825 /* Set up the section symbol. */
1826 if (!_bfd_generic_new_section_hook (abfd
, section
))
1829 /* Allocate aux records for section symbols, to store size and
1832 @@ The 10 is a guess at a plausible maximum number of aux entries
1833 (but shouldn't be a constant). */
1834 amt
= sizeof (combined_entry_type
) * 10;
1835 native
= (combined_entry_type
*) bfd_zalloc (abfd
, amt
);
1839 /* We don't need to set up n_name, n_value, or n_scnum in the native
1840 symbol information, since they'll be overridden by the BFD symbol
1841 anyhow. However, we do need to set the type and storage class,
1842 in case this symbol winds up getting written out. The value 0
1843 for n_numaux is already correct. */
1845 native
->is_sym
= true;
1846 native
->u
.syment
.n_type
= T_NULL
;
1847 native
->u
.syment
.n_sclass
= sclass
;
1849 coffsymbol (section
->symbol
)->native
= native
;
1851 coff_set_custom_section_alignment (abfd
, section
,
1852 coff_section_alignment_table
,
1853 coff_section_alignment_table_size
);
1858 #ifdef COFF_ALIGN_IN_SECTION_HEADER
1860 /* Set the alignment of a BFD section. */
1863 coff_set_alignment_hook (bfd
* abfd ATTRIBUTE_UNUSED
,
1867 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1870 #ifdef COFF_DECODE_ALIGNMENT
1871 i
= COFF_DECODE_ALIGNMENT(hdr
->s_flags
);
1873 section
->alignment_power
= i
;
1875 #ifdef coff_set_section_load_page
1876 coff_set_section_load_page (section
, hdr
->s_page
);
1880 #else /* ! COFF_ALIGN_IN_SECTION_HEADER */
1884 coff_set_alignment_hook (bfd
* abfd ATTRIBUTE_UNUSED
,
1888 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1890 unsigned int alignment_power_const
1891 = hdr
->s_flags
& IMAGE_SCN_ALIGN_POWER_BIT_MASK
;
1893 switch (alignment_power_const
)
1895 case IMAGE_SCN_ALIGN_8192BYTES
:
1896 case IMAGE_SCN_ALIGN_4096BYTES
:
1897 case IMAGE_SCN_ALIGN_2048BYTES
:
1898 case IMAGE_SCN_ALIGN_1024BYTES
:
1899 case IMAGE_SCN_ALIGN_512BYTES
:
1900 case IMAGE_SCN_ALIGN_256BYTES
:
1901 case IMAGE_SCN_ALIGN_128BYTES
:
1902 case IMAGE_SCN_ALIGN_64BYTES
:
1903 case IMAGE_SCN_ALIGN_32BYTES
:
1904 case IMAGE_SCN_ALIGN_16BYTES
:
1905 case IMAGE_SCN_ALIGN_8BYTES
:
1906 case IMAGE_SCN_ALIGN_4BYTES
:
1907 case IMAGE_SCN_ALIGN_2BYTES
:
1908 case IMAGE_SCN_ALIGN_1BYTES
:
1909 section
->alignment_power
1910 = IMAGE_SCN_ALIGN_POWER_NUM (alignment_power_const
);
1916 /* In a PE image file, the s_paddr field holds the virtual size of a
1917 section, while the s_size field holds the raw size. We also keep
1918 the original section flag value, since not every bit can be
1919 mapped onto a generic BFD section bit. */
1920 if (coff_section_data (abfd
, section
) == NULL
)
1922 amt
= sizeof (struct coff_section_tdata
);
1923 section
->used_by_bfd
= bfd_zalloc (abfd
, amt
);
1924 if (section
->used_by_bfd
== NULL
)
1925 /* FIXME: Return error. */
1929 if (pei_section_data (abfd
, section
) == NULL
)
1931 amt
= sizeof (struct pei_section_tdata
);
1932 coff_section_data (abfd
, section
)->tdata
= bfd_zalloc (abfd
, amt
);
1933 if (coff_section_data (abfd
, section
)->tdata
== NULL
)
1934 /* FIXME: Return error. */
1937 pei_section_data (abfd
, section
)->virt_size
= hdr
->s_paddr
;
1938 pei_section_data (abfd
, section
)->pe_flags
= hdr
->s_flags
;
1940 section
->lma
= hdr
->s_vaddr
;
1942 /* Check for extended relocs. */
1943 if (hdr
->s_flags
& IMAGE_SCN_LNK_NRELOC_OVFL
)
1945 struct external_reloc dst
;
1946 struct internal_reloc n
;
1947 file_ptr oldpos
= bfd_tell (abfd
);
1948 bfd_size_type relsz
= bfd_coff_relsz (abfd
);
1950 if (bfd_seek (abfd
, (file_ptr
) hdr
->s_relptr
, 0) != 0)
1952 if (bfd_bread (& dst
, relsz
, abfd
) != relsz
)
1955 bfd_coff_swap_reloc_in (abfd
, &dst
, &n
);
1956 if (bfd_seek (abfd
, oldpos
, 0) != 0)
1958 if (n
.r_vaddr
< 0x10000)
1960 _bfd_error_handler (_("%pB: overflow reloc count too small"), abfd
);
1961 bfd_set_error (bfd_error_bad_value
);
1964 section
->reloc_count
= hdr
->s_nreloc
= n
.r_vaddr
- 1;
1965 section
->rel_filepos
+= relsz
;
1967 else if (hdr
->s_nreloc
== 0xffff)
1969 (_("%pB: warning: claims to have 0xffff relocs, without overflow"),
1973 #undef ELIFALIGN_SET
1975 #else /* ! COFF_WITH_PE */
1978 /* We grossly abuse this function to handle XCOFF overflow headers.
1979 When we see one, we correct the reloc and line number counts in the
1980 real header, and remove the section we just created. */
1983 coff_set_alignment_hook (bfd
*abfd
, asection
*section
, void * scnhdr
)
1985 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1988 if ((hdr
->s_flags
& STYP_OVRFLO
) == 0)
1991 real_sec
= coff_section_from_bfd_index (abfd
, (int) hdr
->s_nreloc
);
1992 if (real_sec
== NULL
)
1995 real_sec
->reloc_count
= hdr
->s_paddr
;
1996 real_sec
->lineno_count
= hdr
->s_vaddr
;
1998 if (!bfd_section_removed_from_list (abfd
, section
))
2000 bfd_section_list_remove (abfd
, section
);
2001 --abfd
->section_count
;
2005 #else /* ! RS6000COFF_C */
2006 #if defined (COFF_GO32_EXE) || defined (COFF_GO32)
2009 coff_set_alignment_hook (bfd
* abfd
, asection
* section
, void * scnhdr
)
2011 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
2013 /* Check for extended relocs. */
2014 if (hdr
->s_flags
& IMAGE_SCN_LNK_NRELOC_OVFL
)
2016 struct external_reloc dst
;
2017 struct internal_reloc n
;
2018 const file_ptr oldpos
= bfd_tell (abfd
);
2019 const bfd_size_type relsz
= bfd_coff_relsz (abfd
);
2021 if (bfd_seek (abfd
, (file_ptr
) hdr
->s_relptr
, 0) != 0)
2023 if (bfd_bread (& dst
, relsz
, abfd
) != relsz
)
2026 bfd_coff_swap_reloc_in (abfd
, &dst
, &n
);
2027 if (bfd_seek (abfd
, oldpos
, 0) != 0)
2029 section
->reloc_count
= hdr
->s_nreloc
= n
.r_vaddr
- 1;
2030 section
->rel_filepos
+= relsz
;
2032 else if (hdr
->s_nreloc
== 0xffff)
2034 (_("%pB: warning: claims to have 0xffff relocs, without overflow"),
2038 #else /* ! COFF_GO32_EXE && ! COFF_GO32 */
2041 coff_set_alignment_hook (bfd
*abfd ATTRIBUTE_UNUSED
,
2042 asection
*section ATTRIBUTE_UNUSED
,
2043 void *scnhdr ATTRIBUTE_UNUSED
)
2047 #endif /* ! COFF_GO32_EXE && ! COFF_GO32 */
2048 #endif /* ! RS6000COFF_C */
2049 #endif /* ! COFF_WITH_PE */
2050 #endif /* ! COFF_ALIGN_IN_SECTION_HEADER */
2052 #ifndef coff_mkobject
2055 coff_mkobject (bfd
* abfd
)
2057 coff_data_type
*coff
;
2058 size_t amt
= sizeof (coff_data_type
);
2060 abfd
->tdata
.coff_obj_data
= bfd_zalloc (abfd
, amt
);
2061 if (abfd
->tdata
.coff_obj_data
== NULL
)
2063 coff
= coff_data (abfd
);
2064 coff
->symbols
= NULL
;
2065 coff
->conversion_table
= NULL
;
2066 coff
->raw_syments
= NULL
;
2067 coff
->relocbase
= 0;
2068 coff
->local_toc_sym_map
= 0;
2070 /* make_abs_section(abfd);*/
2076 /* Create the COFF backend specific information. */
2078 #ifndef coff_mkobject_hook
2080 coff_mkobject_hook (bfd
* abfd
,
2082 void * aouthdr ATTRIBUTE_UNUSED
)
2084 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
2085 coff_data_type
*coff
;
2087 if (! coff_mkobject (abfd
))
2090 coff
= coff_data (abfd
);
2092 coff
->sym_filepos
= internal_f
->f_symptr
;
2094 /* These members communicate important constants about the symbol
2095 table to GDB's symbol-reading code. These `constants'
2096 unfortunately vary among coff implementations... */
2097 coff
->local_n_btmask
= N_BTMASK
;
2098 coff
->local_n_btshft
= N_BTSHFT
;
2099 coff
->local_n_tmask
= N_TMASK
;
2100 coff
->local_n_tshift
= N_TSHIFT
;
2101 coff
->local_symesz
= bfd_coff_symesz (abfd
);
2102 coff
->local_auxesz
= bfd_coff_auxesz (abfd
);
2103 coff
->local_linesz
= bfd_coff_linesz (abfd
);
2105 coff
->timestamp
= internal_f
->f_timdat
;
2107 obj_raw_syment_count (abfd
) =
2108 obj_conv_table_size (abfd
) =
2109 internal_f
->f_nsyms
;
2112 if ((internal_f
->f_flags
& F_SHROBJ
) != 0)
2113 abfd
->flags
|= DYNAMIC
;
2114 if (aouthdr
!= NULL
&& internal_f
->f_opthdr
>= bfd_coff_aoutsz (abfd
))
2116 struct internal_aouthdr
*internal_a
=
2117 (struct internal_aouthdr
*) aouthdr
;
2118 struct xcoff_tdata
*xcoff
;
2120 xcoff
= xcoff_data (abfd
);
2121 # ifdef U803XTOCMAGIC
2122 xcoff
->xcoff64
= internal_f
->f_magic
== U803XTOCMAGIC
;
2126 xcoff
->full_aouthdr
= true;
2127 xcoff
->toc
= internal_a
->o_toc
;
2128 xcoff
->sntoc
= internal_a
->o_sntoc
;
2129 xcoff
->snentry
= internal_a
->o_snentry
;
2130 bfd_xcoff_text_align_power (abfd
) = internal_a
->o_algntext
;
2131 bfd_xcoff_data_align_power (abfd
) = internal_a
->o_algndata
;
2132 xcoff
->modtype
= internal_a
->o_modtype
;
2133 xcoff
->cputype
= internal_a
->o_cputype
;
2134 xcoff
->maxdata
= internal_a
->o_maxdata
;
2135 xcoff
->maxstack
= internal_a
->o_maxstack
;
2140 /* Set the flags field from the COFF header read in. */
2141 if (! _bfd_coff_arm_set_private_flags (abfd
, internal_f
->f_flags
))
2146 /* FIXME: I'm not sure this is ever executed, since peicode.h
2147 defines coff_mkobject_hook. */
2148 if ((internal_f
->f_flags
& IMAGE_FILE_DEBUG_STRIPPED
) == 0)
2149 abfd
->flags
|= HAS_DEBUG
;
2156 /* Determine the machine architecture and type. FIXME: This is target
2157 dependent because the magic numbers are defined in the target
2158 dependent header files. But there is no particular need for this.
2159 If the magic numbers were moved to a separate file, this function
2160 would be target independent and would also be much more successful
2161 at linking together COFF files for different architectures. */
2164 coff_set_arch_mach_hook (bfd
*abfd
, void * filehdr
)
2166 unsigned long machine
;
2167 enum bfd_architecture arch
;
2168 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
2170 /* Zero selects the default machine for an arch. */
2172 switch (internal_f
->f_magic
)
2177 case I386AIXMAGIC
: /* Danbury PS/2 AIX C Compiler. */
2179 case I386_APPLE_MAGIC
:
2180 case I386_FREEBSD_MAGIC
:
2181 case I386_LINUX_MAGIC
:
2182 case I386_NETBSD_MAGIC
:
2183 arch
= bfd_arch_i386
;
2188 case AMD64_APPLE_MAGIC
:
2189 case AMD64_FREEBSD_MAGIC
:
2190 case AMD64_LINUX_MAGIC
:
2191 case AMD64_NETBSD_MAGIC
:
2192 arch
= bfd_arch_i386
;
2193 machine
= bfd_mach_x86_64
;
2198 arch
= bfd_arch_ia64
;
2205 arch
= bfd_arch_arm
;
2206 machine
= bfd_arm_get_mach_from_notes (abfd
, ARM_NOTE_SECTION
);
2207 if (machine
== bfd_mach_arm_unknown
)
2209 switch (internal_f
->f_flags
& F_ARM_ARCHITECTURE_MASK
)
2211 case F_ARM_2
: machine
= bfd_mach_arm_2
; break;
2212 case F_ARM_2a
: machine
= bfd_mach_arm_2a
; break;
2213 case F_ARM_3
: machine
= bfd_mach_arm_3
; break;
2215 case F_ARM_3M
: machine
= bfd_mach_arm_3M
; break;
2216 case F_ARM_4
: machine
= bfd_mach_arm_4
; break;
2217 case F_ARM_4T
: machine
= bfd_mach_arm_4T
; break;
2218 /* The COFF header does not have enough bits available
2219 to cover all the different ARM architectures. So
2220 we interpret F_ARM_5, the highest flag value to mean
2221 "the highest ARM architecture known to BFD" which is
2222 currently the XScale. */
2223 case F_ARM_5
: machine
= bfd_mach_arm_XScale
; break;
2230 arch
= bfd_arch_aarch64
;
2231 machine
= internal_f
->f_flags
& F_AARCH64_ARCHITECTURE_MASK
;
2236 arch
= bfd_arch_z80
;
2237 switch (internal_f
->f_flags
& F_MACHMASK
)
2239 case bfd_mach_z80strict
<< 12:
2240 case bfd_mach_z80
<< 12:
2241 case bfd_mach_z80n
<< 12:
2242 case bfd_mach_z80full
<< 12:
2243 case bfd_mach_r800
<< 12:
2244 case bfd_mach_gbz80
<< 12:
2245 case bfd_mach_z180
<< 12:
2246 case bfd_mach_ez80_z80
<< 12:
2247 case bfd_mach_ez80_adl
<< 12:
2248 machine
= ((unsigned)internal_f
->f_flags
& F_MACHMASK
) >> 12;
2257 arch
= bfd_arch_z8k
;
2258 switch (internal_f
->f_flags
& F_MACHMASK
)
2261 machine
= bfd_mach_z8001
;
2264 machine
= bfd_mach_z8002
;
2284 if (xcoff_data (abfd
)->cputype
!= -1)
2285 cputype
= xcoff_data (abfd
)->cputype
& 0xff;
2288 /* We did not get a value from the a.out header. If the
2289 file has not been stripped, we may be able to get the
2290 architecture information from the first symbol, if it
2291 is a .file symbol. */
2292 if (obj_raw_syment_count (abfd
) == 0)
2297 struct internal_syment sym
;
2298 bfd_size_type amt
= bfd_coff_symesz (abfd
);
2300 if (bfd_seek (abfd
, obj_sym_filepos (abfd
), SEEK_SET
) != 0)
2302 buf
= _bfd_malloc_and_read (abfd
, amt
, amt
);
2305 bfd_coff_swap_sym_in (abfd
, buf
, & sym
);
2306 if (sym
.n_sclass
== C_FILE
)
2307 cputype
= sym
.n_type
& 0xff;
2314 /* FIXME: We don't handle all cases here. */
2319 arch
= bfd_xcoff_architecture (abfd
);
2320 machine
= bfd_xcoff_machine (abfd
);
2324 arch
= bfd_arch_powerpc
;
2325 machine
= bfd_mach_ppc_601
;
2327 case 2: /* 64 bit PowerPC */
2328 arch
= bfd_arch_powerpc
;
2329 machine
= bfd_mach_ppc_620
;
2332 arch
= bfd_arch_powerpc
;
2333 machine
= bfd_mach_ppc
;
2336 arch
= bfd_arch_rs6000
;
2337 machine
= bfd_mach_rs6k
;
2344 #ifdef SH_ARCH_MAGIC_BIG
2345 case SH_ARCH_MAGIC_BIG
:
2346 case SH_ARCH_MAGIC_LITTLE
:
2348 case SH_ARCH_MAGIC_WINCE
:
2354 #ifdef MIPS_ARCH_MAGIC_WINCE
2355 case MIPS_ARCH_MAGIC_WINCE
:
2356 arch
= bfd_arch_mips
;
2362 #ifdef LYNXCOFFMAGIC
2365 arch
= bfd_arch_sparc
;
2371 arch
= bfd_arch_tic30
;
2376 #ifdef TICOFF_TARGET_ARCH
2377 /* This TI COFF section should be used by all new TI COFF v0 targets. */
2379 arch
= TICOFF_TARGET_ARCH
;
2380 machine
= TICOFF_TARGET_MACHINE_GET (internal_f
->f_flags
);
2386 /* This TI COFF section should be used by all new TI COFF v1/2 targets. */
2387 /* TI COFF1 and COFF2 use the target_id field to specify which arch. */
2390 switch (internal_f
->f_target_id
)
2394 arch
= TICOFF_TARGET_ARCH
;
2395 machine
= TICOFF_TARGET_MACHINE_GET (internal_f
->f_flags
);
2399 arch
= bfd_arch_obscure
;
2401 (_("unrecognized TI COFF target id '0x%x'"),
2402 internal_f
->f_target_id
);
2410 arch
= bfd_arch_mcore
;
2414 default: /* Unreadable input file type. */
2415 arch
= bfd_arch_obscure
;
2419 bfd_default_set_arch_mach (abfd
, arch
, machine
);
2424 symname_in_debug_hook (bfd
*abfd ATTRIBUTE_UNUSED
,
2425 struct internal_syment
*sym ATTRIBUTE_UNUSED
)
2427 #ifdef SYMNAME_IN_DEBUG
2428 return SYMNAME_IN_DEBUG (sym
) != 0;
2437 #define FORCE_SYMNAMES_IN_STRINGS
2440 /* Handle the csect auxent of a C_EXT, C_AIX_WEAKEXT or C_HIDEXT symbol. */
2443 coff_pointerize_aux_hook (bfd
*abfd ATTRIBUTE_UNUSED
,
2444 combined_entry_type
*table_base
,
2445 combined_entry_type
*symbol
,
2446 unsigned int indaux
,
2447 combined_entry_type
*aux
)
2449 BFD_ASSERT (symbol
->is_sym
);
2450 int n_sclass
= symbol
->u
.syment
.n_sclass
;
2452 if (CSECT_SYM_P (n_sclass
)
2453 && indaux
+ 1 == symbol
->u
.syment
.n_numaux
)
2455 BFD_ASSERT (! aux
->is_sym
);
2456 if (SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
) == XTY_LD
)
2458 aux
->u
.auxent
.x_csect
.x_scnlen
.p
=
2459 table_base
+ aux
->u
.auxent
.x_csect
.x_scnlen
.l
;
2460 aux
->fix_scnlen
= 1;
2463 /* Return TRUE to indicate that the caller should not do any
2464 further work on this auxent. */
2468 /* Return FALSE to indicate that this auxent should be handled by
2474 #define coff_pointerize_aux_hook 0
2475 #endif /* ! RS6000COFF_C */
2477 /* Print an aux entry. This returns TRUE if it has printed it. */
2480 coff_print_aux (bfd
*abfd ATTRIBUTE_UNUSED
,
2481 FILE *file ATTRIBUTE_UNUSED
,
2482 combined_entry_type
*table_base ATTRIBUTE_UNUSED
,
2483 combined_entry_type
*symbol ATTRIBUTE_UNUSED
,
2484 combined_entry_type
*aux ATTRIBUTE_UNUSED
,
2485 unsigned int indaux ATTRIBUTE_UNUSED
)
2487 BFD_ASSERT (symbol
->is_sym
);
2488 BFD_ASSERT (! aux
->is_sym
);
2490 if (CSECT_SYM_P (symbol
->u
.syment
.n_sclass
)
2491 && indaux
+ 1 == symbol
->u
.syment
.n_numaux
)
2493 /* This is a csect entry. */
2494 fprintf (file
, "AUX ");
2495 if (SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
) != XTY_LD
)
2497 BFD_ASSERT (! aux
->fix_scnlen
);
2498 fprintf (file
, "val %5" PRId64
,
2499 (int64_t) aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2503 fprintf (file
, "indx ");
2504 if (! aux
->fix_scnlen
)
2505 fprintf (file
, "%4" PRId64
,
2506 (int64_t) aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2508 fprintf (file
, "%4ld",
2509 (long) (aux
->u
.auxent
.x_csect
.x_scnlen
.p
- table_base
));
2512 " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u",
2513 aux
->u
.auxent
.x_csect
.x_parmhash
,
2514 (unsigned int) aux
->u
.auxent
.x_csect
.x_snhash
,
2515 SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
),
2516 SMTYP_ALIGN (aux
->u
.auxent
.x_csect
.x_smtyp
),
2517 (unsigned int) aux
->u
.auxent
.x_csect
.x_smclas
,
2518 aux
->u
.auxent
.x_csect
.x_stab
,
2519 (unsigned int) aux
->u
.auxent
.x_csect
.x_snstab
);
2524 /* Return FALSE to indicate that no special action was taken. */
2532 To write relocations, the back end steps though the
2533 canonical relocation table and create an
2534 @code{internal_reloc}. The symbol index to use is removed from
2535 the @code{offset} field in the symbol table supplied. The
2536 address comes directly from the sum of the section base
2537 address and the relocation offset; the type is dug directly
2538 from the howto field. Then the @code{internal_reloc} is
2539 swapped into the shape of an @code{external_reloc} and written
2547 /* AUX's ld wants relocations to be sorted. */
2549 compare_arelent_ptr (const void * x
, const void * y
)
2551 const arelent
**a
= (const arelent
**) x
;
2552 const arelent
**b
= (const arelent
**) y
;
2553 bfd_size_type aadr
= (*a
)->address
;
2554 bfd_size_type badr
= (*b
)->address
;
2556 return (aadr
< badr
? -1 : badr
< aadr
? 1 : 0);
2559 #endif /* TARG_AUX */
2562 coff_write_relocs (bfd
* abfd
, int first_undef
)
2566 for (s
= abfd
->sections
; s
!= NULL
; s
= s
->next
)
2569 struct external_reloc dst
;
2576 /* Sort relocations before we write them out. */
2579 amt
= s
->reloc_count
;
2580 amt
*= sizeof (arelent
*);
2581 p
= bfd_malloc (amt
);
2584 if (s
->reloc_count
> 0)
2589 memcpy (p
, s
->orelocation
, (size_t) amt
);
2590 qsort (p
, s
->reloc_count
, sizeof (arelent
*), compare_arelent_ptr
);
2595 if (bfd_seek (abfd
, s
->rel_filepos
, SEEK_SET
) != 0)
2598 #ifdef COFF_WITH_EXTENDED_RELOC_COUNTER
2599 if ((obj_pe (abfd
) || obj_go32 (abfd
)) && s
->reloc_count
>= 0xffff)
2601 /* Encode real count here as first reloc. */
2602 struct internal_reloc n
;
2604 memset (& n
, 0, sizeof (n
));
2605 /* Add one to count *this* reloc (grr). */
2606 n
.r_vaddr
= s
->reloc_count
+ 1;
2607 coff_swap_reloc_out (abfd
, &n
, &dst
);
2608 if (bfd_bwrite (& dst
, (bfd_size_type
) bfd_coff_relsz (abfd
),
2609 abfd
) != bfd_coff_relsz (abfd
))
2614 for (i
= 0; i
< s
->reloc_count
; i
++)
2616 struct internal_reloc n
;
2619 memset (& n
, 0, sizeof (n
));
2621 /* Now we've renumbered the symbols we know where the
2622 undefined symbols live in the table. Check the reloc
2623 entries for symbols who's output bfd isn't the right one.
2624 This is because the symbol was undefined (which means
2625 that all the pointers are never made to point to the same
2626 place). This is a bad thing,'cause the symbols attached
2627 to the output bfd are indexed, so that the relocation
2628 entries know which symbol index they point to. So we
2629 have to look up the output symbol here. */
2631 if (q
->sym_ptr_ptr
[0] != NULL
&& q
->sym_ptr_ptr
[0]->the_bfd
!= abfd
)
2634 const char *sname
= q
->sym_ptr_ptr
[0]->name
;
2635 asymbol
**outsyms
= abfd
->outsymbols
;
2637 for (j
= first_undef
; outsyms
[j
]; j
++)
2639 const char *intable
= outsyms
[j
]->name
;
2641 if (strcmp (intable
, sname
) == 0)
2643 /* Got a hit, so repoint the reloc. */
2644 q
->sym_ptr_ptr
= outsyms
+ j
;
2650 n
.r_vaddr
= q
->address
+ s
->vma
;
2653 /* The 29k const/consth reloc pair is a real kludge. The consth
2654 part doesn't have a symbol; it has an offset. So rebuilt
2656 if (q
->howto
->type
== R_IHCONST
)
2657 n
.r_symndx
= q
->addend
;
2660 if (q
->sym_ptr_ptr
&& q
->sym_ptr_ptr
[0] != NULL
)
2662 #ifdef SECTION_RELATIVE_ABSOLUTE_SYMBOL_P
2663 if (SECTION_RELATIVE_ABSOLUTE_SYMBOL_P (q
, s
))
2665 if ((*q
->sym_ptr_ptr
)->section
== bfd_abs_section_ptr
2666 && ((*q
->sym_ptr_ptr
)->flags
& BSF_SECTION_SYM
) != 0)
2668 /* This is a relocation relative to the absolute symbol. */
2672 n
.r_symndx
= get_index ((*(q
->sym_ptr_ptr
)));
2673 /* Check to see if the symbol reloc points to a symbol
2674 we don't have in our symbol table. */
2675 if (n
.r_symndx
> obj_conv_table_size (abfd
))
2677 bfd_set_error (bfd_error_bad_value
);
2678 /* xgettext:c-format */
2679 _bfd_error_handler (_("%pB: reloc against a non-existent"
2680 " symbol index: %ld"),
2687 #ifdef SWAP_OUT_RELOC_OFFSET
2688 n
.r_offset
= q
->addend
;
2692 /* Work out reloc type from what is required. */
2694 SELECT_RELOC (n
, q
->howto
);
2697 n
.r_type
= q
->howto
->type
;
2699 coff_swap_reloc_out (abfd
, &n
, &dst
);
2701 if (bfd_bwrite (& dst
, (bfd_size_type
) bfd_coff_relsz (abfd
),
2702 abfd
) != bfd_coff_relsz (abfd
))
2714 /* Set flags and magic number of a coff file from architecture and machine
2715 type. Result is TRUE if we can represent the arch&type, FALSE if not. */
2718 coff_set_flags (bfd
* abfd
,
2719 unsigned int *magicp ATTRIBUTE_UNUSED
,
2720 unsigned short *flagsp ATTRIBUTE_UNUSED
)
2722 switch (bfd_get_arch (abfd
))
2727 switch (bfd_get_mach (abfd
))
2729 case bfd_mach_z80strict
:
2732 case bfd_mach_z80full
:
2734 case bfd_mach_gbz80
:
2736 case bfd_mach_ez80_z80
:
2737 case bfd_mach_ez80_adl
:
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;
2760 case bfd_arch_tic30
:
2761 *magicp
= TIC30MAGIC
;
2765 #ifdef TICOFF_DEFAULT_MAGIC
2766 case TICOFF_TARGET_ARCH
:
2767 /* If there's no indication of which version we want, use the default. */
2769 *magicp
= TICOFF_DEFAULT_MAGIC
;
2772 /* We may want to output in a different COFF version. */
2773 switch (abfd
->xvec
->name
[4])
2776 *magicp
= TICOFF0MAGIC
;
2779 *magicp
= TICOFF1MAGIC
;
2782 *magicp
= TICOFF2MAGIC
;
2788 TICOFF_TARGET_MACHINE_SET (flagsp
, bfd_get_mach (abfd
));
2793 case bfd_arch_aarch64
:
2794 * magicp
= AARCH64MAGIC
;
2801 * magicp
= ARMPEMAGIC
;
2803 * magicp
= ARMMAGIC
;
2806 if (APCS_SET (abfd
))
2808 if (APCS_26_FLAG (abfd
))
2809 * flagsp
|= F_APCS26
;
2811 if (APCS_FLOAT_FLAG (abfd
))
2812 * flagsp
|= F_APCS_FLOAT
;
2814 if (PIC_FLAG (abfd
))
2817 if (INTERWORK_SET (abfd
) && INTERWORK_FLAG (abfd
))
2818 * flagsp
|= F_INTERWORK
;
2819 switch (bfd_get_mach (abfd
))
2821 case bfd_mach_arm_2
: * flagsp
|= F_ARM_2
; break;
2822 case bfd_mach_arm_2a
: * flagsp
|= F_ARM_2a
; break;
2823 case bfd_mach_arm_3
: * flagsp
|= F_ARM_3
; break;
2824 case bfd_mach_arm_3M
: * flagsp
|= F_ARM_3M
; break;
2825 case bfd_mach_arm_4
: * flagsp
|= F_ARM_4
; break;
2826 case bfd_mach_arm_4T
: * flagsp
|= F_ARM_4T
; break;
2827 case bfd_mach_arm_5
: * flagsp
|= F_ARM_5
; break;
2828 /* FIXME: we do not have F_ARM vaues greater than F_ARM_5.
2829 See also the comment in coff_set_arch_mach_hook(). */
2830 case bfd_mach_arm_5T
: * flagsp
|= F_ARM_5
; break;
2831 case bfd_mach_arm_5TE
: * flagsp
|= F_ARM_5
; break;
2832 case bfd_mach_arm_XScale
: * flagsp
|= F_ARM_5
; break;
2837 #if defined(I386MAGIC) || defined(AMD64MAGIC)
2839 #if defined(I386MAGIC)
2840 *magicp
= I386MAGIC
;
2843 /* Just overwrite the usual value if we're doing Lynx. */
2844 *magicp
= LYNXCOFFMAGIC
;
2846 #if defined AMD64MAGIC
2847 *magicp
= AMD64MAGIC
;
2854 *magicp
= IA64MAGIC
;
2858 #ifdef SH_ARCH_MAGIC_BIG
2860 #ifdef COFF_IMAGE_WITH_PE
2861 *magicp
= SH_ARCH_MAGIC_WINCE
;
2863 if (bfd_big_endian (abfd
))
2864 *magicp
= SH_ARCH_MAGIC_BIG
;
2866 *magicp
= SH_ARCH_MAGIC_LITTLE
;
2871 #ifdef MIPS_ARCH_MAGIC_WINCE
2873 *magicp
= MIPS_ARCH_MAGIC_WINCE
;
2878 case bfd_arch_sparc
:
2879 *magicp
= SPARCMAGIC
;
2881 /* Just overwrite the usual value if we're doing Lynx. */
2882 *magicp
= LYNXCOFFMAGIC
;
2888 case bfd_arch_rs6000
:
2889 case bfd_arch_powerpc
:
2890 BFD_ASSERT (bfd_get_flavour (abfd
) == bfd_target_xcoff_flavour
);
2891 *magicp
= bfd_xcoff_magic_number (abfd
);
2896 case bfd_arch_mcore
:
2897 * magicp
= MCOREMAGIC
;
2901 default: /* Unknown architecture. */
2909 coff_set_arch_mach (bfd
* abfd
,
2910 enum bfd_architecture arch
,
2911 unsigned long machine
)
2914 unsigned short dummy2
;
2916 if (! bfd_default_set_arch_mach (abfd
, arch
, machine
))
2919 if (arch
!= bfd_arch_unknown
2920 && ! coff_set_flags (abfd
, &dummy1
, &dummy2
))
2921 return false; /* We can't represent this type. */
2923 return true; /* We're easy... */
2926 #ifdef COFF_IMAGE_WITH_PE
2928 /* This is used to sort sections by VMA, as required by PE image
2932 sort_by_secaddr (const void * arg1
, const void * arg2
)
2934 const asection
*a
= *(const asection
**) arg1
;
2935 const asection
*b
= *(const asection
**) arg2
;
2937 if (a
->vma
< b
->vma
)
2939 else if (a
->vma
> b
->vma
)
2945 #endif /* COFF_IMAGE_WITH_PE */
2947 /* Calculate the file position for each section. */
2949 #define ALIGN_SECTIONS_IN_FILE
2951 #undef ALIGN_SECTIONS_IN_FILE
2955 coff_compute_section_file_positions (bfd
* abfd
)
2958 file_ptr sofar
= bfd_coff_filhsz (abfd
);
2960 unsigned int target_index
;
2961 #ifdef ALIGN_SECTIONS_IN_FILE
2962 asection
*previous
= NULL
;
2966 #ifdef COFF_IMAGE_WITH_PE
2967 unsigned int page_size
;
2969 if (coff_data (abfd
)->link_info
2970 || (pe_data (abfd
) && pe_data (abfd
)->pe_opthdr
.FileAlignment
))
2972 page_size
= pe_data (abfd
)->pe_opthdr
.FileAlignment
;
2974 /* If no file alignment has been set, default to one.
2975 This repairs 'ld -r' for arm-wince-pe target. */
2980 page_size
= PE_DEF_FILE_ALIGNMENT
;
2982 #ifdef COFF_PAGE_SIZE
2983 unsigned int page_size
= COFF_PAGE_SIZE
;
2988 /* On XCOFF, if we have symbols, set up the .debug section. */
2989 if (bfd_get_symcount (abfd
) > 0)
2992 bfd_size_type i
, symcount
;
2996 symcount
= bfd_get_symcount (abfd
);
2997 for (symp
= abfd
->outsymbols
, i
= 0; i
< symcount
; symp
++, i
++)
2999 coff_symbol_type
*cf
;
3001 cf
= coff_symbol_from (*symp
);
3003 && cf
->native
!= NULL
3004 && cf
->native
->is_sym
3005 && SYMNAME_IN_DEBUG (&cf
->native
->u
.syment
))
3009 len
= strlen (bfd_asymbol_name (*symp
));
3010 if (len
> SYMNMLEN
|| bfd_coff_force_symnames_in_strings (abfd
))
3011 sz
+= len
+ 1 + bfd_coff_debug_string_prefix_length (abfd
);
3018 dsec
= bfd_make_section_old_way (abfd
, DOT_DEBUG
);
3022 dsec
->flags
|= SEC_HAS_CONTENTS
;
3027 if (bfd_get_start_address (abfd
))
3028 /* A start address may have been added to the original file. In this
3029 case it will need an optional header to record it. */
3030 abfd
->flags
|= EXEC_P
;
3032 if (abfd
->flags
& EXEC_P
)
3033 sofar
+= bfd_coff_aoutsz (abfd
);
3035 else if (xcoff_data (abfd
)->full_aouthdr
)
3036 sofar
+= bfd_coff_aoutsz (abfd
);
3038 sofar
+= SMALL_AOUTSZ
;
3041 sofar
+= abfd
->section_count
* bfd_coff_scnhsz (abfd
);
3044 /* XCOFF handles overflows in the reloc and line number count fields
3045 by allocating a new section header to hold the correct counts. */
3046 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3047 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3048 sofar
+= bfd_coff_scnhsz (abfd
);
3051 #ifdef COFF_IMAGE_WITH_PE
3053 /* PE requires the sections to be in memory order when listed in
3054 the section headers. It also does not like empty loadable
3055 sections. The sections apparently do not have to be in the
3056 right order in the image file itself, but we do need to get the
3057 target_index values right. */
3060 asection
**section_list
;
3064 #ifdef COFF_PAGE_SIZE
3065 /* Clear D_PAGED if section / file alignment aren't suitable for
3066 paging at COFF_PAGE_SIZE granularity. */
3067 if (pe_data (abfd
)->pe_opthdr
.SectionAlignment
< COFF_PAGE_SIZE
3068 || page_size
< COFF_PAGE_SIZE
)
3069 abfd
->flags
&= ~D_PAGED
;
3073 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3076 /* We allocate an extra cell to simplify the final loop. */
3077 amt
= sizeof (struct asection
*) * (count
+ 1);
3078 section_list
= (asection
**) bfd_malloc (amt
);
3079 if (section_list
== NULL
)
3083 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3085 section_list
[i
] = current
;
3088 section_list
[i
] = NULL
;
3090 qsort (section_list
, count
, sizeof (asection
*), sort_by_secaddr
);
3092 /* Rethread the linked list into sorted order; at the same time,
3093 assign target_index values. */
3095 abfd
->sections
= NULL
;
3096 abfd
->section_last
= NULL
;
3097 for (i
= 0; i
< count
; i
++)
3099 current
= section_list
[i
];
3100 bfd_section_list_append (abfd
, current
);
3102 /* Later, if the section has zero size, we'll be throwing it
3103 away, so we don't want to number it now. Note that having
3104 a zero size and having real contents are different
3105 concepts: .bss has no contents, but (usually) non-zero
3107 if (current
->size
== 0)
3109 /* Discard. However, it still might have (valid) symbols
3110 in it, so arbitrarily set it to section 1 (indexing is
3111 1-based here; usually .text). __end__ and other
3112 contents of .endsection really have this happen.
3113 FIXME: This seems somewhat dubious. */
3114 current
->target_index
= 1;
3117 current
->target_index
= target_index
++;
3120 free (section_list
);
3122 #else /* ! COFF_IMAGE_WITH_PE */
3124 /* Set the target_index field. */
3126 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3127 current
->target_index
= target_index
++;
3129 #endif /* ! COFF_IMAGE_WITH_PE */
3131 if (target_index
>= bfd_coff_max_nscns (abfd
))
3133 bfd_set_error (bfd_error_file_too_big
);
3135 /* xgettext:c-format */
3136 (_("%pB: too many sections (%d)"), abfd
, target_index
);
3140 align_adjust
= false;
3141 for (current
= abfd
->sections
;
3143 current
= current
->next
)
3145 #ifdef COFF_IMAGE_WITH_PE
3146 /* With PE we have to pad each section to be a multiple of its
3147 page size too, and remember both sizes. */
3148 if (coff_section_data (abfd
, current
) == NULL
)
3150 size_t amt
= sizeof (struct coff_section_tdata
);
3152 current
->used_by_bfd
= bfd_zalloc (abfd
, amt
);
3153 if (current
->used_by_bfd
== NULL
)
3156 if (pei_section_data (abfd
, current
) == NULL
)
3158 size_t amt
= sizeof (struct pei_section_tdata
);
3160 coff_section_data (abfd
, current
)->tdata
= bfd_zalloc (abfd
, amt
);
3161 if (coff_section_data (abfd
, current
)->tdata
== NULL
)
3164 if (pei_section_data (abfd
, current
)->virt_size
== 0)
3165 pei_section_data (abfd
, current
)->virt_size
= current
->size
;
3168 /* Only deal with sections which have contents. */
3169 if (!(current
->flags
& SEC_HAS_CONTENTS
))
3172 current
->rawsize
= current
->size
;
3174 #ifdef COFF_IMAGE_WITH_PE
3175 /* Make sure we skip empty sections in a PE image. */
3176 if (current
->size
== 0)
3180 /* Align the sections in the file to the same boundary on
3181 which they are aligned in virtual memory. */
3182 #ifdef ALIGN_SECTIONS_IN_FILE
3183 if ((abfd
->flags
& EXEC_P
) != 0)
3185 /* Make sure this section is aligned on the right boundary - by
3186 padding the previous section up if necessary. */
3189 #ifdef COFF_IMAGE_WITH_PE
3190 sofar
= BFD_ALIGN (sofar
, page_size
);
3192 sofar
= BFD_ALIGN (sofar
, 1 << current
->alignment_power
);
3196 /* Make sure the file offset and the vma of .text/.data are at the
3197 same page offset, so that the file can be mmap'ed without being
3198 relocated. Failing that, AIX is able to load and execute the
3199 program, but it will be silently relocated (possible as
3200 executables are PIE). But the relocation is slightly costly and
3201 complexify the use of addr2line or gdb. So better to avoid it,
3202 like does the native linker. Usually gnu ld makes sure that
3203 the vma of .text is the file offset so this issue shouldn't
3204 appear unless you are stripping such an executable.
3206 AIX loader checks the text section alignment of (vma - filepos),
3207 and the native linker doesn't try to align the text sections.
3210 0 .text 000054cc 10000128 10000128 00000128 2**5
3211 CONTENTS, ALLOC, LOAD, CODE
3213 Don't perform the above tweak if the previous one is .tdata,
3214 as it will increase the memory allocated for every threads
3215 created and not just improve performances with gdb.
3218 if ((!strcmp (current
->name
, _TEXT
)
3219 || !strcmp (current
->name
, _DATA
))
3220 && (previous
== NULL
|| strcmp(previous
->name
, _TDATA
)))
3222 bfd_vma align
= 4096;
3223 bfd_vma sofar_off
= sofar
% align
;
3224 bfd_vma vma_off
= current
->vma
% align
;
3226 if (vma_off
> sofar_off
)
3227 sofar
+= vma_off
- sofar_off
;
3228 else if (vma_off
< sofar_off
)
3229 sofar
+= align
+ vma_off
- sofar_off
;
3232 if (previous
!= NULL
)
3233 previous
->size
+= sofar
- old_sofar
;
3238 /* In demand paged files the low order bits of the file offset
3239 must match the low order bits of the virtual address. */
3240 #ifdef COFF_PAGE_SIZE
3241 if ((abfd
->flags
& D_PAGED
) != 0
3242 && (current
->flags
& SEC_ALLOC
) != 0)
3243 sofar
+= (current
->vma
- (bfd_vma
) sofar
) % page_size
;
3245 current
->filepos
= sofar
;
3247 #ifdef COFF_IMAGE_WITH_PE
3248 /* Set the padded size. */
3249 current
->size
= (current
->size
+ page_size
- 1) & -page_size
;
3252 sofar
+= current
->size
;
3254 #ifdef ALIGN_SECTIONS_IN_FILE
3255 /* Make sure that this section is of the right size too. */
3256 if ((abfd
->flags
& EXEC_P
) == 0)
3258 bfd_size_type old_size
;
3260 old_size
= current
->size
;
3261 current
->size
= BFD_ALIGN (current
->size
,
3262 1 << current
->alignment_power
);
3263 align_adjust
= current
->size
!= old_size
;
3264 sofar
+= current
->size
- old_size
;
3269 #ifdef COFF_IMAGE_WITH_PE
3270 sofar
= BFD_ALIGN (sofar
, page_size
);
3272 sofar
= BFD_ALIGN (sofar
, 1 << current
->alignment_power
);
3274 align_adjust
= sofar
!= old_sofar
;
3275 current
->size
+= sofar
- old_sofar
;
3279 #ifdef COFF_IMAGE_WITH_PE
3280 /* For PE we need to make sure we pad out to the aligned
3281 size, in case the caller only writes out data to the
3283 if (pei_section_data (abfd
, current
)->virt_size
< current
->size
)
3284 align_adjust
= true;
3288 /* Force .lib sections to start at zero. The vma is then
3289 incremented in coff_set_section_contents. This is right for
3291 if (strcmp (current
->name
, _LIB
) == 0)
3292 bfd_set_section_vma (current
, 0);
3295 #ifdef ALIGN_SECTIONS_IN_FILE
3300 /* It is now safe to write to the output file. If we needed an
3301 alignment adjustment for the last section, then make sure that
3302 there is a byte at offset sofar. If there are no symbols and no
3303 relocs, then nothing follows the last section. If we don't force
3304 the last byte out, then the file may appear to be truncated. */
3310 if (bfd_seek (abfd
, sofar
- 1, SEEK_SET
) != 0
3311 || bfd_bwrite (&b
, (bfd_size_type
) 1, abfd
) != 1)
3315 /* Make sure the relocations are aligned. We don't need to make
3316 sure that this byte exists, because it will only matter if there
3317 really are relocs. */
3318 sofar
= BFD_ALIGN (sofar
, 1 << COFF_DEFAULT_SECTION_ALIGNMENT_POWER
);
3320 obj_relocbase (abfd
) = sofar
;
3321 abfd
->output_has_begun
= true;
3326 #ifdef COFF_IMAGE_WITH_PE
3329 coff_read_word (bfd
*abfd
, unsigned int *value
, unsigned int *pelength
)
3334 status
= bfd_bread (b
, (bfd_size_type
) 2, abfd
);
3342 *value
= (unsigned int) b
[0];
3344 *value
= (unsigned int) (b
[0] + (b
[1] << 8));
3346 *pelength
+= status
;
3352 coff_compute_checksum (bfd
*abfd
, unsigned int *pelength
)
3361 filepos
= (file_ptr
) 0;
3365 if (bfd_seek (abfd
, filepos
, SEEK_SET
) != 0)
3368 more_data
= coff_read_word (abfd
, &value
, pelength
);
3370 total
= 0xffff & (total
+ (total
>> 0x10));
3375 return (0xffff & (total
+ (total
>> 0x10)));
3379 coff_apply_checksum (bfd
*abfd
)
3381 unsigned int computed
;
3382 unsigned int checksum
= 0;
3383 unsigned int peheader
;
3384 unsigned int pelength
;
3386 if (bfd_seek (abfd
, 0x3c, SEEK_SET
) != 0)
3389 if (!coff_read_word (abfd
, &peheader
, &pelength
))
3392 if (bfd_seek (abfd
, peheader
+ 0x58, SEEK_SET
) != 0)
3396 bfd_bwrite (&checksum
, (bfd_size_type
) 4, abfd
);
3398 if (bfd_seek (abfd
, peheader
, SEEK_SET
) != 0)
3401 computed
= coff_compute_checksum (abfd
, &pelength
);
3403 checksum
= computed
+ pelength
;
3405 if (bfd_seek (abfd
, peheader
+ 0x58, SEEK_SET
) != 0)
3408 bfd_bwrite (&checksum
, (bfd_size_type
) 4, abfd
);
3413 #endif /* COFF_IMAGE_WITH_PE */
3416 coff_write_object_contents (bfd
* abfd
)
3419 bool hasrelocs
= false;
3420 bool haslinno
= false;
3421 #ifdef COFF_IMAGE_WITH_PE
3422 bool hasdebug
= false;
3425 file_ptr reloc_base
;
3426 file_ptr lineno_base
;
3428 unsigned long reloc_size
= 0, reloc_count
= 0;
3429 unsigned long lnno_size
= 0;
3430 bool long_section_names
;
3431 asection
*text_sec
= NULL
;
3432 asection
*data_sec
= NULL
;
3433 asection
*bss_sec
= NULL
;
3435 asection
*tdata_sec
= NULL
;
3436 asection
*tbss_sec
= NULL
;
3438 struct internal_filehdr internal_f
;
3439 struct internal_aouthdr internal_a
;
3440 #ifdef COFF_LONG_SECTION_NAMES
3441 size_t string_size
= STRING_SIZE_SIZE
;
3444 bfd_set_error (bfd_error_system_call
);
3446 /* Make a pass through the symbol table to count line number entries and
3447 put them into the correct asections. */
3448 lnno_size
= coff_count_linenumbers (abfd
) * bfd_coff_linesz (abfd
);
3450 if (! abfd
->output_has_begun
)
3452 if (! coff_compute_section_file_positions (abfd
))
3456 reloc_base
= obj_relocbase (abfd
);
3458 /* Work out the size of the reloc and linno areas. */
3460 for (current
= abfd
->sections
; current
!= NULL
; current
=
3463 #ifdef COFF_WITH_EXTENDED_RELOC_COUNTER
3464 /* We store the actual reloc count in the first reloc's addr. */
3465 if ((obj_pe (abfd
) || obj_go32 (abfd
)) && current
->reloc_count
>= 0xffff)
3468 reloc_count
+= current
->reloc_count
;
3471 reloc_size
= reloc_count
* bfd_coff_relsz (abfd
);
3473 lineno_base
= reloc_base
+ reloc_size
;
3474 sym_base
= lineno_base
+ lnno_size
;
3476 /* Indicate in each section->line_filepos its actual file address. */
3477 for (current
= abfd
->sections
; current
!= NULL
; current
=
3480 if (current
->lineno_count
)
3482 current
->line_filepos
= lineno_base
;
3483 current
->moving_line_filepos
= lineno_base
;
3484 lineno_base
+= current
->lineno_count
* bfd_coff_linesz (abfd
);
3487 current
->line_filepos
= 0;
3489 if (current
->reloc_count
)
3491 current
->rel_filepos
= reloc_base
;
3492 reloc_base
+= current
->reloc_count
* bfd_coff_relsz (abfd
);
3493 #ifdef COFF_WITH_EXTENDED_RELOC_COUNTER
3494 /* Extra reloc to hold real count. */
3495 if ((obj_pe (abfd
) || obj_go32 (abfd
)) && current
->reloc_count
>= 0xffff)
3496 reloc_base
+= bfd_coff_relsz (abfd
);
3500 current
->rel_filepos
= 0;
3503 /* Write section headers to the file. */
3504 internal_f
.f_nscns
= 0;
3506 if ((abfd
->flags
& EXEC_P
) != 0)
3507 scn_base
= bfd_coff_filhsz (abfd
) + bfd_coff_aoutsz (abfd
);
3510 scn_base
= bfd_coff_filhsz (abfd
);
3513 if (xcoff_data (abfd
)->full_aouthdr
)
3514 scn_base
+= bfd_coff_aoutsz (abfd
);
3516 scn_base
+= SMALL_AOUTSZ
;
3521 if (bfd_seek (abfd
, scn_base
, SEEK_SET
) != 0)
3524 long_section_names
= false;
3525 for (current
= abfd
->sections
;
3527 current
= current
->next
)
3529 struct internal_scnhdr section
;
3530 #ifdef COFF_IMAGE_WITH_PE
3531 bool is_reloc_section
= false;
3533 if (strcmp (current
->name
, DOT_RELOC
) == 0)
3535 is_reloc_section
= true;
3537 pe_data (abfd
)->has_reloc_section
= 1;
3541 internal_f
.f_nscns
++;
3543 strncpy (section
.s_name
, current
->name
, SCNNMLEN
);
3545 #ifdef COFF_LONG_SECTION_NAMES
3546 /* Handle long section names as in PE. This must be compatible
3547 with the code in coff_write_symbols and _bfd_coff_final_link. */
3548 if (bfd_coff_long_section_names (abfd
))
3552 len
= strlen (current
->name
);
3555 /* The s_name field is defined to be NUL-padded but need not be
3556 NUL-terminated. We use a temporary buffer so that we can still
3557 sprintf all eight chars without splatting a terminating NUL
3558 over the first byte of the following member (s_paddr). */
3559 /* PR 21096: The +20 is to stop a bogus warning from gcc7 about
3560 a possible buffer overflow. */
3561 char s_name_buf
[SCNNMLEN
+ 1 + 20];
3563 /* An inherent limitation of the /nnnnnnn notation used to indicate
3564 the offset of the long name in the string table is that we
3565 cannot address entries beyone the ten million byte boundary. */
3566 if (string_size
>= 10000000)
3568 bfd_set_error (bfd_error_file_too_big
);
3570 /* xgettext:c-format */
3571 (_("%pB: section %pA: string table overflow at offset %ld"),
3572 abfd
, current
, (unsigned long) string_size
);
3576 /* We do not need to use snprintf here as we have already verfied
3577 that string_size is not too big, plus we have an overlarge
3578 buffer, just in case. */
3579 sprintf (s_name_buf
, "/%lu", (unsigned long) string_size
);
3580 /* Then strncpy takes care of any padding for us. */
3581 strncpy (section
.s_name
, s_name_buf
, SCNNMLEN
);
3582 string_size
+= len
+ 1;
3583 long_section_names
= true;
3589 /* Always set s_vaddr of .lib to 0. This is right for SVR3.2
3590 Ian Taylor <ian@cygnus.com>. */
3591 if (strcmp (current
->name
, _LIB
) == 0)
3592 section
.s_vaddr
= 0;
3595 section
.s_vaddr
= current
->vma
;
3596 section
.s_paddr
= current
->lma
;
3597 section
.s_size
= current
->size
;
3598 #ifdef coff_get_section_load_page
3599 section
.s_page
= coff_get_section_load_page (current
);
3605 section
.s_paddr
= 0;
3607 #ifdef COFF_IMAGE_WITH_PE
3608 /* Reminder: s_paddr holds the virtual size of the section. */
3609 if (coff_section_data (abfd
, current
) != NULL
3610 && pei_section_data (abfd
, current
) != NULL
)
3611 section
.s_paddr
= pei_section_data (abfd
, current
)->virt_size
;
3613 section
.s_paddr
= 0;
3616 /* If this section has no size or is unloadable then the scnptr
3618 if (current
->size
== 0
3619 || (current
->flags
& (SEC_LOAD
| SEC_HAS_CONTENTS
)) == 0)
3620 section
.s_scnptr
= 0;
3622 section
.s_scnptr
= current
->filepos
;
3624 section
.s_relptr
= current
->rel_filepos
;
3625 section
.s_lnnoptr
= current
->line_filepos
;
3626 section
.s_nreloc
= current
->reloc_count
;
3627 section
.s_nlnno
= current
->lineno_count
;
3628 #ifndef COFF_IMAGE_WITH_PE
3629 /* In PEI, relocs come in the .reloc section. */
3630 if (current
->reloc_count
!= 0)
3633 if (current
->lineno_count
!= 0)
3635 #ifdef COFF_IMAGE_WITH_PE
3636 if ((current
->flags
& SEC_DEBUGGING
) != 0
3637 && ! is_reloc_section
)
3643 /* Indicate the use of an XCOFF overflow section header. */
3644 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3646 section
.s_nreloc
= 0xffff;
3647 section
.s_nlnno
= 0xffff;
3652 section
.s_flags
= sec_to_styp_flags (current
->name
, current
->flags
);
3654 if (!strcmp (current
->name
, _TEXT
))
3656 else if (!strcmp (current
->name
, _DATA
))
3658 else if (!strcmp (current
->name
, _BSS
))
3661 else if (!strcmp (current
->name
, _TDATA
))
3662 tdata_sec
= current
;
3663 else if (!strcmp (current
->name
, _TBSS
))
3668 #ifdef COFF_ENCODE_ALIGNMENT
3669 if (COFF_ENCODE_ALIGNMENT (abfd
, section
, current
->alignment_power
)
3670 && (COFF_DECODE_ALIGNMENT (section
.s_flags
)
3671 != current
->alignment_power
))
3673 bool warn
= (coff_data (abfd
)->link_info
3674 && !bfd_link_relocatable (coff_data (abfd
)->link_info
));
3677 /* xgettext:c-format */
3678 (_("%pB:%s section %s: alignment 2**%u not representable"),
3679 abfd
, warn
? " warning:" : "", current
->name
,
3680 current
->alignment_power
);
3683 bfd_set_error (bfd_error_nonrepresentable_section
);
3689 #ifdef COFF_IMAGE_WITH_PE
3690 /* Suppress output of the sections if they are null. ld
3691 includes the bss and data sections even if there is no size
3692 assigned to them. NT loader doesn't like it if these section
3693 headers are included if the sections themselves are not
3694 needed. See also coff_compute_section_file_positions. */
3695 if (section
.s_size
== 0)
3696 internal_f
.f_nscns
--;
3701 bfd_size_type amt
= bfd_coff_scnhsz (abfd
);
3703 if (bfd_coff_swap_scnhdr_out (abfd
, §ion
, &buff
) == 0
3704 || bfd_bwrite (& buff
, amt
, abfd
) != amt
)
3709 /* PE stores COMDAT section information in the symbol table. If
3710 this section is supposed to have some COMDAT info, track down
3711 the symbol in the symbol table and modify it. */
3712 if ((current
->flags
& SEC_LINK_ONCE
) != 0)
3714 unsigned int i
, count
;
3716 coff_symbol_type
*csym
= NULL
;
3720 count
= bfd_get_symcount (abfd
);
3721 for (i
= 0, psym
= abfd
->outsymbols
; i
< count
; i
++, psym
++)
3723 if ((*psym
)->section
!= current
)
3726 /* Remember the location of the first symbol in this
3728 if (psymsec
== NULL
)
3731 /* See if this is the section symbol. */
3732 if (strcmp ((*psym
)->name
, current
->name
) == 0)
3734 csym
= coff_symbol_from (*psym
);
3736 || csym
->native
== NULL
3737 || ! csym
->native
->is_sym
3738 || csym
->native
->u
.syment
.n_numaux
< 1
3739 || csym
->native
->u
.syment
.n_sclass
!= C_STAT
3740 || csym
->native
->u
.syment
.n_type
!= T_NULL
)
3743 /* Here *PSYM is the section symbol for CURRENT. */
3750 Note that we might not if we're converting the file from
3751 some other object file format. */
3754 combined_entry_type
*aux
;
3756 /* We don't touch the x_checksum field. The
3757 x_associated field is not currently supported. */
3759 aux
= csym
->native
+ 1;
3760 BFD_ASSERT (! aux
->is_sym
);
3761 switch (current
->flags
& SEC_LINK_DUPLICATES
)
3763 case SEC_LINK_DUPLICATES_DISCARD
:
3764 aux
->u
.auxent
.x_scn
.x_comdat
= IMAGE_COMDAT_SELECT_ANY
;
3767 case SEC_LINK_DUPLICATES_ONE_ONLY
:
3768 aux
->u
.auxent
.x_scn
.x_comdat
=
3769 IMAGE_COMDAT_SELECT_NODUPLICATES
;
3772 case SEC_LINK_DUPLICATES_SAME_SIZE
:
3773 aux
->u
.auxent
.x_scn
.x_comdat
=
3774 IMAGE_COMDAT_SELECT_SAME_SIZE
;
3777 case SEC_LINK_DUPLICATES_SAME_CONTENTS
:
3778 aux
->u
.auxent
.x_scn
.x_comdat
=
3779 IMAGE_COMDAT_SELECT_EXACT_MATCH
;
3783 /* The COMDAT symbol must be the first symbol from this
3784 section in the symbol table. In order to make this
3785 work, we move the COMDAT symbol before the first
3786 symbol we found in the search above. It's OK to
3787 rearrange the symbol table at this point, because
3788 coff_renumber_symbols is going to rearrange it
3789 further and fix up all the aux entries. */
3790 if (psym
!= psymsec
)
3796 for (pcopy
= psym
; pcopy
> psymsec
; pcopy
--)
3797 pcopy
[0] = pcopy
[-1];
3802 #endif /* COFF_WITH_PE */
3807 /* XCOFF handles overflows in the reloc and line number count fields
3808 by creating a new section header to hold the correct values. */
3809 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3811 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3813 struct internal_scnhdr scnhdr
;
3817 internal_f
.f_nscns
++;
3818 memcpy (scnhdr
.s_name
, ".ovrflo", 8);
3819 scnhdr
.s_paddr
= current
->reloc_count
;
3820 scnhdr
.s_vaddr
= current
->lineno_count
;
3822 scnhdr
.s_scnptr
= 0;
3823 scnhdr
.s_relptr
= current
->rel_filepos
;
3824 scnhdr
.s_lnnoptr
= current
->line_filepos
;
3825 scnhdr
.s_nreloc
= current
->target_index
;
3826 scnhdr
.s_nlnno
= current
->target_index
;
3827 scnhdr
.s_flags
= STYP_OVRFLO
;
3828 amt
= bfd_coff_scnhsz (abfd
);
3829 if (bfd_coff_swap_scnhdr_out (abfd
, &scnhdr
, &buff
) == 0
3830 || bfd_bwrite (& buff
, amt
, abfd
) != amt
)
3837 #if defined (COFF_GO32_EXE) || defined (COFF_GO32)
3838 /* Pad section headers. */
3839 if ((abfd
->flags
& EXEC_P
) && abfd
->sections
!= NULL
)
3841 file_ptr cur_ptr
= scn_base
3842 + abfd
->section_count
* bfd_coff_scnhsz (abfd
);
3843 long fill_size
= (abfd
->sections
->filepos
- cur_ptr
);
3844 bfd_byte
*b
= bfd_zmalloc (fill_size
);
3847 bfd_bwrite (b
, fill_size
, abfd
);
3853 /* OK, now set up the filehdr... */
3855 /* Don't include the internal abs section in the section count */
3857 /* We will NOT put a fucking timestamp in the header here. Every time you
3858 put it back, I will come in and take it out again. I'm sorry. This
3859 field does not belong here. We fill it with a 0 so it compares the
3860 same but is not a reasonable time. -- gnu@cygnus.com */
3861 internal_f
.f_timdat
= 0;
3862 internal_f
.f_flags
= 0;
3864 if (abfd
->flags
& EXEC_P
)
3865 internal_f
.f_opthdr
= bfd_coff_aoutsz (abfd
);
3868 internal_f
.f_opthdr
= 0;
3871 if (xcoff_data (abfd
)->full_aouthdr
)
3872 internal_f
.f_opthdr
= bfd_coff_aoutsz (abfd
);
3874 internal_f
.f_opthdr
= SMALL_AOUTSZ
;
3880 internal_f
.f_flags
|= F_RELFLG
;
3882 internal_f
.f_flags
|= F_LNNO
;
3883 if (abfd
->flags
& EXEC_P
)
3884 internal_f
.f_flags
|= F_EXEC
;
3885 #ifdef COFF_IMAGE_WITH_PE
3887 internal_f
.f_flags
|= IMAGE_FILE_DEBUG_STRIPPED
;
3888 if (pe_data (abfd
)->real_flags
& IMAGE_FILE_LARGE_ADDRESS_AWARE
)
3889 internal_f
.f_flags
|= IMAGE_FILE_LARGE_ADDRESS_AWARE
;
3892 #if !defined(COFF_WITH_pex64) && !defined(COFF_WITH_peAArch64)
3894 internal_f
.f_flags
|= IMAGE_FILE_32BIT_MACHINE
;
3896 if (bfd_little_endian (abfd
))
3897 internal_f
.f_flags
|= F_AR32WR
;
3899 internal_f
.f_flags
|= F_AR32W
;
3904 /* Target id is used in TI COFF v1 and later; COFF0 won't use this field,
3905 but it doesn't hurt to set it internally. */
3906 internal_f
.f_target_id
= TI_TARGET_ID
;
3909 /* FIXME, should do something about the other byte orders and
3913 if ((abfd
->flags
& DYNAMIC
) != 0)
3914 internal_f
.f_flags
|= F_SHROBJ
;
3915 if (bfd_get_section_by_name (abfd
, _LOADER
) != NULL
)
3916 internal_f
.f_flags
|= F_DYNLOAD
;
3919 memset (&internal_a
, 0, sizeof internal_a
);
3921 /* Set up architecture-dependent stuff. */
3923 unsigned int magic
= 0;
3924 unsigned short flags
= 0;
3926 coff_set_flags (abfd
, &magic
, &flags
);
3927 internal_f
.f_magic
= magic
;
3928 internal_f
.f_flags
|= flags
;
3929 /* ...and the "opt"hdr... */
3931 #ifdef TICOFF_AOUT_MAGIC
3932 internal_a
.magic
= TICOFF_AOUT_MAGIC
;
3933 #define __A_MAGIC_SET__
3937 #define __A_MAGIC_SET__
3938 internal_a
.magic
= ZMAGIC
;
3941 #if defined(AARCH64)
3942 #define __A_MAGIC_SET__
3943 internal_a
.magic
= ZMAGIC
;
3946 #if defined MCORE_PE
3947 #define __A_MAGIC_SET__
3948 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR_MAGIC
;
3952 #define __A_MAGIC_SET__
3954 internal_a
.magic
= LYNXCOFFMAGIC
;
3956 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR64_MAGIC
;
3958 internal_a
.magic
= ZMAGIC
;
3963 #define __A_MAGIC_SET__
3964 internal_a
.magic
= PE32PMAGIC
;
3968 #define __A_MAGIC_SET__
3970 internal_a
.magic
= LYNXCOFFMAGIC
;
3975 #define __A_MAGIC_SET__
3976 internal_a
.magic
= (abfd
->flags
& D_PAGED
) ? RS6K_AOUTHDR_ZMAGIC
:
3977 (abfd
->flags
& WP_TEXT
) ? RS6K_AOUTHDR_NMAGIC
:
3978 RS6K_AOUTHDR_OMAGIC
;
3981 #if defined(SH) && defined(COFF_WITH_PE)
3982 #define __A_MAGIC_SET__
3983 internal_a
.magic
= SH_PE_MAGIC
;
3986 #if defined(MIPS) && defined(COFF_WITH_PE)
3987 #define __A_MAGIC_SET__
3988 internal_a
.magic
= MIPS_PE_MAGIC
;
3991 #ifndef __A_MAGIC_SET__
3992 #include "Your aouthdr magic number is not being set!"
3994 #undef __A_MAGIC_SET__
3999 /* XCOFF 32bit needs this to have new behaviour for n_type field. */
4000 internal_a
.vstamp
= 2;
4002 /* FIXME: Does anybody ever set this to another value? */
4003 internal_a
.vstamp
= 0;
4006 /* Now should write relocs, strings, syms. */
4007 obj_sym_filepos (abfd
) = sym_base
;
4009 if (bfd_get_symcount (abfd
) != 0)
4013 if (!coff_renumber_symbols (abfd
, &firstundef
))
4015 coff_mangle_symbols (abfd
);
4016 if (! coff_write_symbols (abfd
))
4018 if (! coff_write_linenumbers (abfd
))
4020 if (! coff_write_relocs (abfd
, firstundef
))
4023 #ifdef COFF_LONG_SECTION_NAMES
4024 else if (long_section_names
&& ! obj_coff_strings_written (abfd
))
4026 /* If we have long section names we have to write out the string
4027 table even if there are no symbols. */
4028 if (! coff_write_symbols (abfd
))
4032 /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF
4033 backend linker, and obj_raw_syment_count is not valid until after
4034 coff_write_symbols is called. */
4035 if (obj_raw_syment_count (abfd
) != 0)
4037 internal_f
.f_symptr
= sym_base
;
4039 /* AIX appears to require that F_RELFLG not be set if there are
4040 local symbols but no relocations. */
4041 internal_f
.f_flags
&=~ F_RELFLG
;
4046 if (long_section_names
)
4047 internal_f
.f_symptr
= sym_base
;
4049 internal_f
.f_symptr
= 0;
4050 internal_f
.f_flags
|= F_LSYMS
;
4055 internal_a
.tsize
= text_sec
->size
;
4056 internal_a
.text_start
= internal_a
.tsize
? text_sec
->vma
: 0;
4060 internal_a
.dsize
= data_sec
->size
;
4061 internal_a
.data_start
= internal_a
.dsize
? data_sec
->vma
: 0;
4065 internal_a
.bsize
= bss_sec
->size
;
4066 if (internal_a
.bsize
&& bss_sec
->vma
< internal_a
.data_start
)
4067 internal_a
.data_start
= bss_sec
->vma
;
4070 internal_a
.entry
= bfd_get_start_address (abfd
);
4071 internal_f
.f_nsyms
= obj_raw_syment_count (abfd
);
4074 if (xcoff_data (abfd
)->full_aouthdr
)
4077 asection
*loader_sec
;
4079 internal_a
.vstamp
= 2;
4081 internal_a
.o_snentry
= xcoff_data (abfd
)->snentry
;
4082 if (internal_a
.o_snentry
== 0)
4083 internal_a
.entry
= (bfd_vma
) -1;
4085 if (text_sec
!= NULL
)
4087 internal_a
.o_sntext
= text_sec
->target_index
;
4088 internal_a
.o_algntext
= bfd_section_alignment (text_sec
);
4092 internal_a
.o_sntext
= 0;
4093 internal_a
.o_algntext
= 0;
4095 if (data_sec
!= NULL
)
4097 internal_a
.o_sndata
= data_sec
->target_index
;
4098 internal_a
.o_algndata
= bfd_section_alignment (data_sec
);
4102 internal_a
.o_sndata
= 0;
4103 internal_a
.o_algndata
= 0;
4105 loader_sec
= bfd_get_section_by_name (abfd
, ".loader");
4106 if (loader_sec
!= NULL
)
4107 internal_a
.o_snloader
= loader_sec
->target_index
;
4109 internal_a
.o_snloader
= 0;
4110 if (bss_sec
!= NULL
)
4111 internal_a
.o_snbss
= bss_sec
->target_index
;
4113 internal_a
.o_snbss
= 0;
4115 if (tdata_sec
!= NULL
)
4117 internal_a
.o_sntdata
= tdata_sec
->target_index
;
4118 /* TODO: o_flags should be set to RS6K_AOUTHDR_TLS_LE
4119 if there is at least one R_TLS_LE relocations. */
4120 internal_a
.o_flags
= 0;
4122 internal_a
.o_x64flags
= 0;
4127 internal_a
.o_sntdata
= 0;
4128 internal_a
.o_flags
= 0;
4130 internal_a
.o_x64flags
= 0;
4133 if (tbss_sec
!= NULL
)
4134 internal_a
.o_sntbss
= tbss_sec
->target_index
;
4136 internal_a
.o_sntbss
= 0;
4138 toc
= xcoff_data (abfd
)->toc
;
4139 internal_a
.o_toc
= toc
;
4140 internal_a
.o_sntoc
= xcoff_data (abfd
)->sntoc
;
4142 internal_a
.o_modtype
= xcoff_data (abfd
)->modtype
;
4143 if (xcoff_data (abfd
)->cputype
!= -1)
4144 internal_a
.o_cputype
= xcoff_data (abfd
)->cputype
;
4147 switch (bfd_get_arch (abfd
))
4149 case bfd_arch_rs6000
:
4150 internal_a
.o_cputype
= 4;
4152 case bfd_arch_powerpc
:
4153 if (bfd_get_mach (abfd
) == bfd_mach_ppc
)
4154 internal_a
.o_cputype
= 3;
4155 else if (bfd_get_mach (abfd
) == bfd_mach_ppc_620
)
4156 internal_a
.o_cputype
= 2;
4158 internal_a
.o_cputype
= 1;
4164 internal_a
.o_maxstack
= xcoff_data (abfd
)->maxstack
;
4165 internal_a
.o_maxdata
= xcoff_data (abfd
)->maxdata
;
4171 /* After object contents are finalized so we can compute a reasonable hash,
4172 but before header is written so we can update it to point to debug directory. */
4173 struct pe_tdata
*pe
= pe_data (abfd
);
4175 if (pe
->build_id
.after_write_object_contents
!= NULL
)
4176 (*pe
->build_id
.after_write_object_contents
) (abfd
);
4180 /* Now write header. */
4181 if (bfd_seek (abfd
, (file_ptr
) 0, SEEK_SET
) != 0)
4186 bfd_size_type amount
= bfd_coff_filhsz (abfd
);
4188 buff
= (char *) bfd_malloc (amount
);
4192 bfd_coff_swap_filehdr_out (abfd
, & internal_f
, buff
);
4193 amount
= bfd_bwrite (buff
, amount
, abfd
);
4197 if (amount
!= bfd_coff_filhsz (abfd
))
4201 if (abfd
->flags
& EXEC_P
)
4203 /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR.
4204 include/coff/pe.h sets AOUTSZ == sizeof (PEAOUTHDR)). */
4206 bfd_size_type amount
= bfd_coff_aoutsz (abfd
);
4208 buff
= (char *) bfd_malloc (amount
);
4212 coff_swap_aouthdr_out (abfd
, & internal_a
, buff
);
4213 amount
= bfd_bwrite (buff
, amount
, abfd
);
4217 if (amount
!= bfd_coff_aoutsz (abfd
))
4220 #ifdef COFF_IMAGE_WITH_PE
4221 if (! coff_apply_checksum (abfd
))
4232 /* XCOFF32 seems to always write at least a small a.out header. */
4233 coff_swap_aouthdr_out (abfd
, & internal_a
, & buff
);
4234 if (xcoff_data (abfd
)->full_aouthdr
)
4235 size
= bfd_coff_aoutsz (abfd
);
4237 size
= SMALL_AOUTSZ
;
4238 if (bfd_bwrite (& buff
, (bfd_size_type
) size
, abfd
) != size
)
4248 coff_set_section_contents (bfd
* abfd
,
4250 const void * location
,
4252 bfd_size_type count
)
4254 if (! abfd
->output_has_begun
) /* Set by bfd.c handler. */
4256 if (! coff_compute_section_file_positions (abfd
))
4260 #if defined(_LIB) && !defined(TARG_AUX)
4261 /* The physical address field of a .lib section is used to hold the
4262 number of shared libraries in the section. This code counts the
4263 number of sections being written, and increments the lma field
4266 I have found no documentation on the contents of this section.
4267 Experimentation indicates that the section contains zero or more
4268 records, each of which has the following structure:
4270 - a (four byte) word holding the length of this record, in words,
4271 - a word that always seems to be set to "2",
4272 - the path to a shared library, null-terminated and then padded
4273 to a whole word boundary.
4275 bfd_assert calls have been added to alert if an attempt is made
4276 to write a section which doesn't follow these assumptions. The
4277 code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe
4278 <robertl@arnet.com> (Thanks!).
4280 Gvran Uddeborg <gvran@uddeborg.pp.se>. */
4281 if (strcmp (section
->name
, _LIB
) == 0)
4283 bfd_byte
*rec
, *recend
;
4285 rec
= (bfd_byte
*) location
;
4286 recend
= rec
+ count
;
4287 while (rec
< recend
)
4290 rec
+= bfd_get_32 (abfd
, rec
) * 4;
4293 BFD_ASSERT (rec
== recend
);
4297 /* Don't write out bss sections - one way to do this is to
4298 see if the filepos has not been set. */
4299 if (section
->filepos
== 0)
4302 if (bfd_seek (abfd
, section
->filepos
+ offset
, SEEK_SET
) != 0)
4308 return bfd_bwrite (location
, count
, abfd
) == count
;
4312 buy_and_read (bfd
*abfd
, file_ptr where
,
4313 bfd_size_type nmemb
, bfd_size_type size
)
4317 if (_bfd_mul_overflow (nmemb
, size
, &amt
))
4319 bfd_set_error (bfd_error_file_too_big
);
4322 if (bfd_seek (abfd
, where
, SEEK_SET
) != 0)
4324 return _bfd_malloc_and_read (abfd
, amt
, amt
);
4331 Creating the linenumber table is done by reading in the entire
4332 coff linenumber table, and creating another table for internal use.
4334 A coff linenumber table is structured so that each function
4335 is marked as having a line number of 0. Each line within the
4336 function is an offset from the first line in the function. The
4337 base of the line number information for the table is stored in
4338 the symbol associated with the function.
4340 Note: The PE format uses line number 0 for a flag indicating a
4343 The information is copied from the external to the internal
4344 table, and each symbol which marks a function is marked by
4347 How does this work ?
4351 coff_sort_func_alent (const void * arg1
, const void * arg2
)
4353 const alent
*al1
= *(const alent
**) arg1
;
4354 const alent
*al2
= *(const alent
**) arg2
;
4355 const coff_symbol_type
*s1
= (const coff_symbol_type
*) (al1
->u
.sym
);
4356 const coff_symbol_type
*s2
= (const coff_symbol_type
*) (al2
->u
.sym
);
4358 if (s1
== NULL
|| s2
== NULL
)
4360 if (s1
->symbol
.value
< s2
->symbol
.value
)
4362 else if (s1
->symbol
.value
> s2
->symbol
.value
)
4369 coff_slurp_line_table (bfd
*abfd
, asection
*asect
)
4371 LINENO
*native_lineno
;
4372 alent
*lineno_cache
;
4373 unsigned int counter
;
4375 bfd_vma prev_offset
= 0;
4376 bool ordered
= true;
4377 unsigned int nbr_func
;
4383 if (asect
->lineno_count
== 0)
4386 BFD_ASSERT (asect
->lineno
== NULL
);
4388 native_lineno
= (LINENO
*) buy_and_read (abfd
, asect
->line_filepos
,
4389 asect
->lineno_count
,
4390 bfd_coff_linesz (abfd
));
4391 if (native_lineno
== NULL
)
4394 (_("%pB: warning: line number table read failed"), abfd
);
4398 if (_bfd_mul_overflow (asect
->lineno_count
+ 1, sizeof (alent
), &amt
))
4400 bfd_set_error (bfd_error_file_too_big
);
4401 free (native_lineno
);
4404 lineno_cache
= (alent
*) bfd_alloc (abfd
, amt
);
4405 if (lineno_cache
== NULL
)
4407 free (native_lineno
);
4411 cache_ptr
= lineno_cache
;
4412 asect
->lineno
= lineno_cache
;
4413 src
= native_lineno
;
4417 for (counter
= 0; counter
< asect
->lineno_count
; counter
++, src
++)
4419 struct internal_lineno dst
;
4421 bfd_coff_swap_lineno_in (abfd
, src
, &dst
);
4422 cache_ptr
->line_number
= dst
.l_lnno
;
4423 /* Appease memory checkers that get all excited about
4424 uninitialised memory when copying alents if u.offset is
4425 larger than u.sym. (64-bit BFD on 32-bit host.) */
4426 memset (&cache_ptr
->u
, 0, sizeof (cache_ptr
->u
));
4428 if (cache_ptr
->line_number
== 0)
4430 combined_entry_type
* ent
;
4431 unsigned long symndx
;
4432 coff_symbol_type
*sym
;
4435 symndx
= dst
.l_addr
.l_symndx
;
4436 if (symndx
>= obj_raw_syment_count (abfd
))
4439 /* xgettext:c-format */
4440 (_("%pB: warning: illegal symbol index 0x%lx in line number entry %d"),
4441 abfd
, symndx
, counter
);
4442 cache_ptr
->line_number
= -1;
4447 ent
= obj_raw_syments (abfd
) + symndx
;
4448 /* FIXME: We should not be casting between ints and
4449 pointers like this. */
4453 /* xgettext:c-format */
4454 (_("%pB: warning: illegal symbol index 0x%lx in line number entry %d"),
4455 abfd
, symndx
, counter
);
4456 cache_ptr
->line_number
= -1;
4460 sym
= (coff_symbol_type
*) (ent
->u
.syment
._n
._n_n
._n_zeroes
);
4462 /* PR 17512 file: 078-10659-0.004 */
4463 if (sym
< obj_symbols (abfd
)
4464 || sym
>= obj_symbols (abfd
) + bfd_get_symcount (abfd
))
4467 /* xgettext:c-format */
4468 (_("%pB: warning: illegal symbol in line number entry %d"),
4470 cache_ptr
->line_number
= -1;
4477 cache_ptr
->u
.sym
= (asymbol
*) sym
;
4478 if (sym
->lineno
!= NULL
)
4480 /* xgettext:c-format */
4481 (_("%pB: warning: duplicate line number information for `%s'"),
4482 abfd
, bfd_asymbol_name (&sym
->symbol
));
4484 sym
->lineno
= cache_ptr
;
4485 if (sym
->symbol
.value
< prev_offset
)
4487 prev_offset
= sym
->symbol
.value
;
4489 else if (!have_func
)
4490 /* Drop line information that has no associated function.
4491 PR 17521: file: 078-10659-0.004. */
4494 cache_ptr
->u
.offset
= dst
.l_addr
.l_paddr
- bfd_section_vma (asect
);
4498 asect
->lineno_count
= cache_ptr
- lineno_cache
;
4499 memset (cache_ptr
, 0, sizeof (*cache_ptr
));
4500 free (native_lineno
);
4502 /* On some systems (eg AIX5.3) the lineno table may not be sorted. */
4505 /* Sort the table. */
4507 alent
*n_lineno_cache
;
4509 /* Create a table of functions. */
4510 if (_bfd_mul_overflow (nbr_func
, sizeof (alent
*), &amt
))
4512 bfd_set_error (bfd_error_file_too_big
);
4515 else if ((func_table
= (alent
**) bfd_alloc (abfd
, amt
)) != NULL
)
4517 alent
**p
= func_table
;
4520 for (i
= 0; i
< asect
->lineno_count
; i
++)
4521 if (lineno_cache
[i
].line_number
== 0)
4522 *p
++ = &lineno_cache
[i
];
4524 BFD_ASSERT ((unsigned int) (p
- func_table
) == nbr_func
);
4526 /* Sort by functions. */
4527 qsort (func_table
, nbr_func
, sizeof (alent
*), coff_sort_func_alent
);
4529 /* Create the new sorted table. */
4530 if (_bfd_mul_overflow (asect
->lineno_count
, sizeof (alent
), &amt
))
4532 bfd_set_error (bfd_error_file_too_big
);
4535 else if ((n_lineno_cache
= (alent
*) bfd_alloc (abfd
, amt
)) != NULL
)
4537 alent
*n_cache_ptr
= n_lineno_cache
;
4539 for (i
= 0; i
< nbr_func
; i
++)
4541 coff_symbol_type
*sym
;
4542 alent
*old_ptr
= func_table
[i
];
4544 /* Update the function entry. */
4545 sym
= (coff_symbol_type
*) old_ptr
->u
.sym
;
4546 /* PR binutils/17512: Point the lineno to where
4547 this entry will be after the memcpy below. */
4548 sym
->lineno
= lineno_cache
+ (n_cache_ptr
- n_lineno_cache
);
4549 /* Copy the function and line number entries. */
4551 *n_cache_ptr
++ = *old_ptr
++;
4552 while (old_ptr
->line_number
!= 0);
4555 memcpy (lineno_cache
, n_lineno_cache
,
4556 asect
->lineno_count
* sizeof (alent
));
4560 bfd_release (abfd
, func_table
);
4569 /* Slurp in the symbol table, converting it to generic form. Note
4570 that if coff_relocate_section is defined, the linker will read
4571 symbols via coff_link_add_symbols, rather than via this routine. */
4574 coff_slurp_symbol_table (bfd
* abfd
)
4576 combined_entry_type
*native_symbols
;
4577 coff_symbol_type
*cached_area
;
4578 unsigned int *table_ptr
;
4579 unsigned int number_of_symbols
= 0;
4583 if (obj_symbols (abfd
))
4586 /* Read in the symbol table. */
4587 if ((native_symbols
= coff_get_normalized_symtab (abfd
)) == NULL
)
4590 /* Allocate enough room for all the symbols in cached form. */
4591 if (_bfd_mul_overflow (obj_raw_syment_count (abfd
),
4592 sizeof (*cached_area
), &amt
))
4594 bfd_set_error (bfd_error_file_too_big
);
4597 cached_area
= (coff_symbol_type
*) bfd_alloc (abfd
, amt
);
4598 if (cached_area
== NULL
)
4601 if (_bfd_mul_overflow (obj_raw_syment_count (abfd
),
4602 sizeof (*table_ptr
), &amt
))
4604 bfd_set_error (bfd_error_file_too_big
);
4607 table_ptr
= (unsigned int *) bfd_zalloc (abfd
, amt
);
4608 if (table_ptr
== NULL
)
4612 coff_symbol_type
*dst
= cached_area
;
4613 unsigned int last_native_index
= obj_raw_syment_count (abfd
);
4614 unsigned int this_index
= 0;
4616 while (this_index
< last_native_index
)
4618 combined_entry_type
*src
= native_symbols
+ this_index
;
4619 table_ptr
[this_index
] = number_of_symbols
;
4621 dst
->symbol
.the_bfd
= abfd
;
4622 BFD_ASSERT (src
->is_sym
);
4623 dst
->symbol
.name
= (char *) (src
->u
.syment
._n
._n_n
._n_offset
);
4624 /* We use the native name field to point to the cached field. */
4625 src
->u
.syment
._n
._n_n
._n_zeroes
= (uintptr_t) dst
;
4626 dst
->symbol
.section
= coff_section_from_bfd_index (abfd
,
4627 src
->u
.syment
.n_scnum
);
4628 dst
->symbol
.flags
= 0;
4629 /* PR 17512: file: 079-7098-0.001:0.1. */
4630 dst
->symbol
.value
= 0;
4631 dst
->done_lineno
= false;
4633 switch (src
->u
.syment
.n_sclass
)
4639 case C_THUMBEXTFUNC
:
4643 #if ! defined _AIX52 && ! defined AIX_WEAK_SUPPORT
4648 case C_SYSTEM
: /* System Wide variable. */
4651 /* In PE, 0x68 (104) denotes a section symbol. */
4653 /* In PE, 0x69 (105) denotes a weak external symbol. */
4656 switch (coff_classify_symbol (abfd
, &src
->u
.syment
))
4658 case COFF_SYMBOL_GLOBAL
:
4659 dst
->symbol
.flags
= BSF_EXPORT
| BSF_GLOBAL
;
4660 #if defined COFF_WITH_PE
4661 /* PE sets the symbol to a value relative to the
4662 start of the section. */
4663 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4665 dst
->symbol
.value
= (src
->u
.syment
.n_value
4666 - dst
->symbol
.section
->vma
);
4668 if (ISFCN ((src
->u
.syment
.n_type
)))
4669 /* A function ext does not go at the end of a
4671 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
4674 case COFF_SYMBOL_COMMON
:
4675 dst
->symbol
.section
= bfd_com_section_ptr
;
4676 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4679 case COFF_SYMBOL_UNDEFINED
:
4680 dst
->symbol
.section
= bfd_und_section_ptr
;
4681 dst
->symbol
.value
= 0;
4684 case COFF_SYMBOL_PE_SECTION
:
4685 dst
->symbol
.flags
|= BSF_EXPORT
| BSF_SECTION_SYM
;
4686 dst
->symbol
.value
= 0;
4689 case COFF_SYMBOL_LOCAL
:
4690 dst
->symbol
.flags
= BSF_LOCAL
;
4691 #if defined COFF_WITH_PE
4692 /* PE sets the symbol to a value relative to the
4693 start of the section. */
4694 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4696 dst
->symbol
.value
= (src
->u
.syment
.n_value
4697 - dst
->symbol
.section
->vma
);
4699 if (ISFCN ((src
->u
.syment
.n_type
)))
4700 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
4705 /* A symbol with a csect entry should not go at the end. */
4706 if (src
->u
.syment
.n_numaux
> 0)
4707 dst
->symbol
.flags
|= BSF_NOT_AT_END
;
4711 if (src
->u
.syment
.n_sclass
== C_NT_WEAK
)
4712 dst
->symbol
.flags
|= BSF_WEAK
;
4714 if (src
->u
.syment
.n_sclass
== C_SECTION
4715 && src
->u
.syment
.n_scnum
> 0)
4716 dst
->symbol
.flags
= BSF_LOCAL
;
4718 if (src
->u
.syment
.n_sclass
== C_WEAKEXT
4720 || src
->u
.syment
.n_sclass
== C_AIX_WEAKEXT
4723 dst
->symbol
.flags
|= BSF_WEAK
;
4727 case C_STAT
: /* Static. */
4729 case C_THUMBSTAT
: /* Thumb static. */
4730 case C_THUMBLABEL
: /* Thumb label. */
4731 case C_THUMBSTATFUNC
:/* Thumb static function. */
4734 case C_DWARF
: /* A label in a dwarf section. */
4735 case C_INFO
: /* A label in a comment section. */
4737 case C_LABEL
: /* Label. */
4738 if (src
->u
.syment
.n_scnum
== N_DEBUG
)
4739 dst
->symbol
.flags
= BSF_DEBUGGING
;
4741 dst
->symbol
.flags
= BSF_LOCAL
;
4743 /* Base the value as an index from the base of the
4744 section, if there is one. */
4745 if (dst
->symbol
.section
)
4747 #if defined COFF_WITH_PE
4748 /* PE sets the symbol to a value relative to the
4749 start of the section. */
4750 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4752 dst
->symbol
.value
= (src
->u
.syment
.n_value
4753 - dst
->symbol
.section
->vma
);
4757 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4760 case C_FILE
: /* File name. */
4761 dst
->symbol
.flags
= BSF_FILE
;
4763 case C_MOS
: /* Member of structure. */
4764 case C_EOS
: /* End of structure. */
4765 case C_REGPARM
: /* Register parameter. */
4766 case C_REG
: /* register variable. */
4767 /* C_AUTOARG conflicts with TI COFF C_UEXT. */
4768 case C_TPDEF
: /* Type definition. */
4770 case C_AUTO
: /* Automatic variable. */
4771 case C_FIELD
: /* Bit field. */
4772 case C_ENTAG
: /* Enumeration tag. */
4773 case C_MOE
: /* Member of enumeration. */
4774 case C_MOU
: /* Member of union. */
4775 case C_UNTAG
: /* Union tag. */
4776 case C_STRTAG
: /* Structure tag. */
4793 dst
->symbol
.flags
|= BSF_DEBUGGING
;
4794 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4798 case C_BINCL
: /* Beginning of include file. */
4799 case C_EINCL
: /* Ending of include file. */
4800 /* The value is actually a pointer into the line numbers
4801 of the file. We locate the line number entry, and
4802 set the section to the section which contains it, and
4803 the value to the index in that section. */
4807 dst
->symbol
.flags
= BSF_DEBUGGING
;
4808 for (sec
= abfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
4809 if (sec
->line_filepos
<= (file_ptr
) src
->u
.syment
.n_value
4810 && ((file_ptr
) (sec
->line_filepos
4811 + sec
->lineno_count
* bfd_coff_linesz (abfd
))
4812 > (file_ptr
) src
->u
.syment
.n_value
))
4815 dst
->symbol
.value
= 0;
4818 dst
->symbol
.section
= sec
;
4819 dst
->symbol
.value
= ((src
->u
.syment
.n_value
4820 - sec
->line_filepos
)
4821 / bfd_coff_linesz (abfd
));
4828 dst
->symbol
.flags
= BSF_DEBUGGING
;
4830 /* The value is actually a symbol index. Save a pointer
4831 to the symbol instead of the index. FIXME: This
4832 should use a union. */
4833 src
->u
.syment
.n_value
4834 = (uintptr_t) (native_symbols
+ src
->u
.syment
.n_value
);
4835 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4840 case C_BLOCK
: /* ".bb" or ".eb". */
4841 case C_FCN
: /* ".bf" or ".ef" (or PE ".lf"). */
4842 case C_EFCN
: /* Physical end of function. */
4843 #if defined COFF_WITH_PE
4844 /* PE sets the symbol to a value relative to the start
4846 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4847 if (strcmp (dst
->symbol
.name
, ".bf") != 0)
4849 /* PE uses funny values for .ef and .lf; don't
4851 dst
->symbol
.flags
= BSF_DEBUGGING
;
4854 dst
->symbol
.flags
= BSF_DEBUGGING
| BSF_DEBUGGING_RELOC
;
4856 /* Base the value as an index from the base of the
4858 dst
->symbol
.flags
= BSF_LOCAL
;
4859 dst
->symbol
.value
= (src
->u
.syment
.n_value
4860 - dst
->symbol
.section
->vma
);
4864 case C_STATLAB
: /* Static load time label. */
4865 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4866 dst
->symbol
.flags
= BSF_GLOBAL
;
4870 /* PE DLLs sometimes have zeroed out symbols for some
4871 reason. Just ignore them without a warning. */
4872 if (src
->u
.syment
.n_type
== 0
4873 && src
->u
.syment
.n_value
== 0
4874 && src
->u
.syment
.n_scnum
== 0)
4877 /* XCOFF specific: deleted entry. */
4878 if (src
->u
.syment
.n_value
== C_NULL_VALUE
)
4882 case C_EXTDEF
: /* External definition. */
4883 case C_ULABEL
: /* Undefined label. */
4884 case C_USTATIC
: /* Undefined static. */
4885 #ifndef COFF_WITH_PE
4886 /* C_LINE in regular coff is 0x68. NT has taken over this storage
4887 class to represent a section symbol. */
4888 case C_LINE
: /* line # reformatted as symbol table entry. */
4889 /* NT uses 0x67 for a weak symbol, not C_ALIAS. */
4890 case C_ALIAS
: /* Duplicate tag. */
4892 /* New storage classes for TI COFF. */
4894 case C_UEXT
: /* Tentative external definition. */
4896 case C_EXTLAB
: /* External load time label. */
4899 /* xgettext:c-format */
4900 (_("%pB: unrecognized storage class %d for %s symbol `%s'"),
4901 abfd
, src
->u
.syment
.n_sclass
,
4902 dst
->symbol
.section
->name
, dst
->symbol
.name
);
4905 case C_HIDDEN
: /* Ext symbol in dmert public lib. */
4906 /* PR 20722: These symbols can also be generated by
4907 building DLLs with --gc-sections enabled. */
4908 dst
->symbol
.flags
= BSF_DEBUGGING
;
4909 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4914 dst
->symbol
.udata
.i
= 0;
4917 this_index
+= (src
->u
.syment
.n_numaux
) + 1;
4919 number_of_symbols
++;
4923 obj_symbols (abfd
) = cached_area
;
4924 obj_raw_syments (abfd
) = native_symbols
;
4926 abfd
->symcount
= number_of_symbols
;
4927 obj_convert (abfd
) = table_ptr
;
4928 /* Slurp the line tables for each section too. */
4935 if (! coff_slurp_line_table (abfd
, p
))
4944 /* Classify a COFF symbol. A couple of targets have globally visible
4945 symbols which are not class C_EXT, and this handles those. It also
4946 recognizes some special PE cases. */
4948 static enum coff_symbol_classification
4949 coff_classify_symbol (bfd
*abfd
,
4950 struct internal_syment
*syment
)
4952 /* FIXME: This partially duplicates the switch in
4953 coff_slurp_symbol_table. */
4954 switch (syment
->n_sclass
)
4960 case C_THUMBEXTFUNC
:
4964 #if ! defined _AIX52 && ! defined AIX_WEAK_SUPPORT
4974 if (syment
->n_scnum
== 0)
4976 if (syment
->n_value
== 0)
4977 return COFF_SYMBOL_UNDEFINED
;
4979 return COFF_SYMBOL_COMMON
;
4982 if (syment
->n_sclass
== C_HIDEXT
)
4983 return COFF_SYMBOL_LOCAL
;
4985 return COFF_SYMBOL_GLOBAL
;
4992 if (syment
->n_sclass
== C_STAT
)
4994 if (syment
->n_scnum
== 0)
4995 /* The Microsoft compiler sometimes generates these if a
4996 small static function is inlined every time it is used.
4997 The function is discarded, but the symbol table entry
4999 return COFF_SYMBOL_LOCAL
;
5001 #ifdef STRICT_PE_FORMAT
5002 /* This is correct for Microsoft generated objects, but it
5003 breaks gas generated objects. */
5004 if (syment
->n_value
== 0)
5008 char buf
[SYMNMLEN
+ 1];
5010 name
= _bfd_coff_internal_syment_name (abfd
, syment
, buf
)
5011 sec
= coff_section_from_bfd_index (abfd
, syment
->n_scnum
);
5012 if (sec
!= NULL
&& name
!= NULL
5013 && (strcmp (bfd_section_name (sec
), name
) == 0))
5014 return COFF_SYMBOL_PE_SECTION
;
5018 return COFF_SYMBOL_LOCAL
;
5021 if (syment
->n_sclass
== C_SECTION
)
5023 /* In some cases in a DLL generated by the Microsoft linker, the
5024 n_value field will contain garbage. FIXME: This should
5025 probably be handled by the swapping function instead. */
5026 syment
->n_value
= 0;
5027 if (syment
->n_scnum
== 0)
5028 return COFF_SYMBOL_UNDEFINED
;
5029 return COFF_SYMBOL_PE_SECTION
;
5031 #endif /* COFF_WITH_PE */
5033 /* If it is not a global symbol, we presume it is a local symbol. */
5034 if (syment
->n_scnum
== 0)
5036 char buf
[SYMNMLEN
+ 1];
5039 /* xgettext:c-format */
5040 (_("warning: %pB: local symbol `%s' has no section"),
5041 abfd
, _bfd_coff_internal_syment_name (abfd
, syment
, buf
));
5044 return COFF_SYMBOL_LOCAL
;
5051 Coff relocations are easily transformed into the internal BFD form
5054 Reading a coff relocation table is done in the following stages:
5056 o Read the entire coff relocation table into memory.
5058 o Process each relocation in turn; first swap it from the
5059 external to the internal form.
5061 o Turn the symbol referenced in the relocation's symbol index
5062 into a pointer into the canonical symbol table.
5063 This table is the same as the one returned by a call to
5064 @code{bfd_canonicalize_symtab}. The back end will call that
5065 routine and save the result if a canonicalization hasn't been done.
5067 o The reloc index is turned into a pointer to a howto
5068 structure, in a back end specific way. For instance, the 386
5069 uses the @code{r_type} to directly produce an index
5070 into a howto table vector.
5074 #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
5076 coff_symbol_type *coffsym = NULL; \
5078 if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
5079 coffsym = (obj_symbols (abfd) \
5080 + (cache_ptr->sym_ptr_ptr - symbols)); \
5082 coffsym = coff_symbol_from (ptr); \
5083 if (coffsym != NULL \
5084 && coffsym->native->is_sym \
5085 && coffsym->native->u.syment.n_scnum == 0) \
5086 cache_ptr->addend = 0; \
5087 else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
5088 && ptr->section != NULL) \
5089 cache_ptr->addend = - (ptr->section->vma + ptr->value); \
5091 cache_ptr->addend = 0; \
5096 coff_slurp_reloc_table (bfd
* abfd
, sec_ptr asect
, asymbol
** symbols
)
5098 bfd_byte
*native_relocs
;
5099 arelent
*reloc_cache
;
5104 if (asect
->relocation
)
5106 if (asect
->reloc_count
== 0)
5108 if (asect
->flags
& SEC_CONSTRUCTOR
)
5110 if (!coff_slurp_symbol_table (abfd
))
5113 native_relocs
= (bfd_byte
*) buy_and_read (abfd
, asect
->rel_filepos
,
5115 bfd_coff_relsz (abfd
));
5116 if (native_relocs
== NULL
)
5119 if (_bfd_mul_overflow (asect
->reloc_count
, sizeof (arelent
), &amt
))
5121 bfd_set_error (bfd_error_file_too_big
);
5124 reloc_cache
= (arelent
*) bfd_alloc (abfd
, amt
);
5125 if (reloc_cache
== NULL
)
5127 free (native_relocs
);
5131 for (idx
= 0; idx
< asect
->reloc_count
; idx
++)
5133 struct internal_reloc dst
;
5135 #ifndef RELOC_PROCESSING
5139 cache_ptr
= reloc_cache
+ idx
;
5140 src
= native_relocs
+ idx
* (size_t) bfd_coff_relsz (abfd
);
5143 bfd_coff_swap_reloc_in (abfd
, src
, &dst
);
5145 #ifdef RELOC_PROCESSING
5146 RELOC_PROCESSING (cache_ptr
, &dst
, symbols
, abfd
, asect
);
5148 cache_ptr
->address
= dst
.r_vaddr
;
5150 if (dst
.r_symndx
!= -1 && symbols
!= NULL
)
5152 if (dst
.r_symndx
< 0 || dst
.r_symndx
>= obj_conv_table_size (abfd
))
5155 /* xgettext:c-format */
5156 (_("%pB: warning: illegal symbol index %ld in relocs"),
5157 abfd
, dst
.r_symndx
);
5158 cache_ptr
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
5163 cache_ptr
->sym_ptr_ptr
= (symbols
5164 + obj_convert (abfd
)[dst
.r_symndx
]);
5165 ptr
= *(cache_ptr
->sym_ptr_ptr
);
5170 cache_ptr
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
5174 /* The symbols definitions that we have read in have been
5175 relocated as if their sections started at 0. But the offsets
5176 refering to the symbols in the raw data have not been
5177 modified, so we have to have a negative addend to compensate.
5179 Note that symbols which used to be common must be left alone. */
5181 /* Calculate any reloc addend by looking at the symbol. */
5182 CALC_ADDEND (abfd
, ptr
, dst
, cache_ptr
);
5185 cache_ptr
->address
-= asect
->vma
;
5186 /* !! cache_ptr->section = NULL;*/
5188 /* Fill in the cache_ptr->howto field from dst.r_type. */
5189 RTYPE2HOWTO (cache_ptr
, &dst
);
5190 #endif /* RELOC_PROCESSING */
5192 if (cache_ptr
->howto
== NULL
)
5195 /* xgettext:c-format */
5196 (_("%pB: illegal relocation type %d at address %#" PRIx64
),
5197 abfd
, dst
.r_type
, (uint64_t) dst
.r_vaddr
);
5198 bfd_set_error (bfd_error_bad_value
);
5199 free (native_relocs
);
5204 free (native_relocs
);
5205 asect
->relocation
= reloc_cache
;
5209 #ifndef coff_rtype_to_howto
5212 /* Get the howto structure for a reloc. This is only used if the file
5213 including this one defines coff_relocate_section to be
5214 _bfd_coff_generic_relocate_section, so it is OK if it does not
5215 always work. It is the responsibility of the including file to
5216 make sure it is reasonable if it is needed. */
5218 static reloc_howto_type
*
5219 coff_rtype_to_howto (bfd
*abfd ATTRIBUTE_UNUSED
,
5220 asection
*sec ATTRIBUTE_UNUSED
,
5221 struct internal_reloc
*rel ATTRIBUTE_UNUSED
,
5222 struct coff_link_hash_entry
*h ATTRIBUTE_UNUSED
,
5223 struct internal_syment
*sym ATTRIBUTE_UNUSED
,
5224 bfd_vma
*addendp ATTRIBUTE_UNUSED
)
5228 genrel
.howto
= NULL
;
5229 RTYPE2HOWTO (&genrel
, rel
);
5230 return genrel
.howto
;
5233 #else /* ! defined (RTYPE2HOWTO) */
5235 #define coff_rtype_to_howto NULL
5237 #endif /* ! defined (RTYPE2HOWTO) */
5238 #endif /* ! defined (coff_rtype_to_howto) */
5240 /* This is stupid. This function should be a boolean predicate. */
5243 coff_canonicalize_reloc (bfd
* abfd
,
5248 arelent
*tblptr
= section
->relocation
;
5249 unsigned int count
= 0;
5251 if (section
->flags
& SEC_CONSTRUCTOR
)
5253 /* This section has relocs made up by us, they are not in the
5254 file, so take them out of their chain and place them into
5255 the data area provided. */
5256 arelent_chain
*chain
= section
->constructor_chain
;
5258 for (count
= 0; count
< section
->reloc_count
; count
++)
5260 *relptr
++ = &chain
->relent
;
5261 chain
= chain
->next
;
5266 if (! coff_slurp_reloc_table (abfd
, section
, symbols
))
5269 tblptr
= section
->relocation
;
5271 for (; count
++ < section
->reloc_count
;)
5272 *relptr
++ = tblptr
++;
5275 return section
->reloc_count
;
5278 #ifndef coff_set_reloc
5279 #define coff_set_reloc _bfd_generic_set_reloc
5282 #ifndef coff_reloc16_estimate
5283 #define coff_reloc16_estimate dummy_reloc16_estimate
5286 dummy_reloc16_estimate (bfd
*abfd ATTRIBUTE_UNUSED
,
5287 asection
*input_section ATTRIBUTE_UNUSED
,
5288 arelent
*reloc ATTRIBUTE_UNUSED
,
5289 unsigned int shrink ATTRIBUTE_UNUSED
,
5290 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
)
5298 #ifndef coff_reloc16_extra_cases
5300 #define coff_reloc16_extra_cases dummy_reloc16_extra_cases
5302 /* This works even if abort is not declared in any header file. */
5305 dummy_reloc16_extra_cases (bfd
*abfd ATTRIBUTE_UNUSED
,
5306 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
,
5307 struct bfd_link_order
*link_order ATTRIBUTE_UNUSED
,
5308 arelent
*reloc ATTRIBUTE_UNUSED
,
5309 bfd_byte
*data ATTRIBUTE_UNUSED
,
5310 unsigned int *src_ptr ATTRIBUTE_UNUSED
,
5311 unsigned int *dst_ptr ATTRIBUTE_UNUSED
)
5317 /* If coff_relocate_section is defined, we can use the optimized COFF
5318 backend linker. Otherwise we must continue to use the old linker. */
5320 #ifdef coff_relocate_section
5322 #ifndef coff_bfd_link_hash_table_create
5323 #define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create
5325 #ifndef coff_bfd_link_add_symbols
5326 #define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols
5328 #ifndef coff_bfd_final_link
5329 #define coff_bfd_final_link _bfd_coff_final_link
5332 #else /* ! defined (coff_relocate_section) */
5334 #define coff_relocate_section NULL
5335 #ifndef coff_bfd_link_hash_table_create
5336 #define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
5338 #ifndef coff_bfd_link_add_symbols
5339 #define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols
5341 #define coff_bfd_final_link _bfd_generic_final_link
5343 #endif /* ! defined (coff_relocate_section) */
5345 #define coff_bfd_link_just_syms _bfd_generic_link_just_syms
5346 #define coff_bfd_copy_link_hash_symbol_type \
5347 _bfd_generic_copy_link_hash_symbol_type
5348 #define coff_bfd_link_split_section _bfd_generic_link_split_section
5350 #define coff_bfd_link_check_relocs _bfd_generic_link_check_relocs
5352 #ifndef coff_start_final_link
5353 #define coff_start_final_link NULL
5356 #ifndef coff_adjust_symndx
5357 #define coff_adjust_symndx NULL
5360 #ifndef coff_link_add_one_symbol
5361 #define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol
5364 #ifndef coff_link_output_has_begun
5367 coff_link_output_has_begun (bfd
* abfd
,
5368 struct coff_final_link_info
* info ATTRIBUTE_UNUSED
)
5370 return abfd
->output_has_begun
;
5374 #ifndef coff_final_link_postscript
5377 coff_final_link_postscript (bfd
* abfd ATTRIBUTE_UNUSED
,
5378 struct coff_final_link_info
* pfinfo ATTRIBUTE_UNUSED
)
5384 #ifndef coff_SWAP_aux_in
5385 #define coff_SWAP_aux_in coff_swap_aux_in
5387 #ifndef coff_SWAP_sym_in
5388 #define coff_SWAP_sym_in coff_swap_sym_in
5390 #ifndef coff_SWAP_lineno_in
5391 #define coff_SWAP_lineno_in coff_swap_lineno_in
5393 #ifndef coff_SWAP_aux_out
5394 #define coff_SWAP_aux_out coff_swap_aux_out
5396 #ifndef coff_SWAP_sym_out
5397 #define coff_SWAP_sym_out coff_swap_sym_out
5399 #ifndef coff_SWAP_lineno_out
5400 #define coff_SWAP_lineno_out coff_swap_lineno_out
5402 #ifndef coff_SWAP_reloc_out
5403 #define coff_SWAP_reloc_out coff_swap_reloc_out
5405 #ifndef coff_SWAP_filehdr_out
5406 #define coff_SWAP_filehdr_out coff_swap_filehdr_out
5408 #ifndef coff_SWAP_aouthdr_out
5409 #define coff_SWAP_aouthdr_out coff_swap_aouthdr_out
5411 #ifndef coff_SWAP_scnhdr_out
5412 #define coff_SWAP_scnhdr_out coff_swap_scnhdr_out
5414 #ifndef coff_SWAP_reloc_in
5415 #define coff_SWAP_reloc_in coff_swap_reloc_in
5417 #ifndef coff_SWAP_filehdr_in
5418 #define coff_SWAP_filehdr_in coff_swap_filehdr_in
5420 #ifndef coff_SWAP_aouthdr_in
5421 #define coff_SWAP_aouthdr_in coff_swap_aouthdr_in
5423 #ifndef coff_SWAP_scnhdr_in
5424 #define coff_SWAP_scnhdr_in coff_swap_scnhdr_in
5427 static bfd_coff_backend_data bfd_coff_std_swap_table ATTRIBUTE_UNUSED
=
5429 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
5430 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
5431 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5432 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
5433 coff_SWAP_scnhdr_out
,
5434 FILHSZ
, AOUTSZ
, SCNHSZ
, SYMESZ
, AUXESZ
, RELSZ
, LINESZ
, FILNMLEN
,
5435 #ifdef COFF_LONG_FILENAMES
5440 COFF_DEFAULT_LONG_SECTION_NAMES
,
5441 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5442 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5447 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5453 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5454 coff_SWAP_reloc_in
, coff_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
,
5466 /* COFF0 differs in file/section header size and relocation entry size. */
5468 static bfd_coff_backend_data ticoff0_swap_table
=
5470 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
5471 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
5472 coff_SWAP_lineno_out
, coff_swap_reloc_v0_out
,
5473 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
5474 coff_SWAP_scnhdr_out
,
5475 FILHSZ_V0
, AOUTSZ
, SCNHSZ_V01
, SYMESZ
, AUXESZ
, RELSZ_V0
, LINESZ
, FILNMLEN
,
5476 #ifdef COFF_LONG_FILENAMES
5481 COFF_DEFAULT_LONG_SECTION_NAMES
,
5482 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5483 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5488 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5494 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5495 coff_swap_reloc_v0_in
, ticoff0_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
,
5508 /* COFF1 differs in section header size. */
5510 static bfd_coff_backend_data ticoff1_swap_table
=
5512 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
5513 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
5514 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5515 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
5516 coff_SWAP_scnhdr_out
,
5517 FILHSZ
, AOUTSZ
, SCNHSZ_V01
, SYMESZ
, AUXESZ
, RELSZ
, LINESZ
, FILNMLEN
,
5518 #ifdef COFF_LONG_FILENAMES
5523 COFF_DEFAULT_LONG_SECTION_NAMES
,
5524 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5525 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5530 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5536 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5537 coff_SWAP_reloc_in
, ticoff1_bad_format_hook
, coff_set_arch_mach_hook
,
5538 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5539 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5540 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5541 coff_classify_symbol
, coff_compute_section_file_positions
,
5542 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5543 coff_adjust_symndx
, coff_link_add_one_symbol
,
5544 coff_link_output_has_begun
, coff_final_link_postscript
,
5545 bfd_pe_print_pdata
/* huh */
5549 #ifdef COFF_WITH_PE_BIGOBJ
5550 /* The UID for bigobj files. */
5552 static const char header_bigobj_classid
[16] =
5554 0xC7, 0xA1, 0xBA, 0xD1,
5558 0xFA, 0xF6, 0x6A, 0xA4, 0xDC, 0xB8
5561 /* Swap routines. */
5564 coff_bigobj_swap_filehdr_in (bfd
* abfd
, void * src
, void * dst
)
5566 struct external_ANON_OBJECT_HEADER_BIGOBJ
*filehdr_src
=
5567 (struct external_ANON_OBJECT_HEADER_BIGOBJ
*) src
;
5568 struct internal_filehdr
*filehdr_dst
= (struct internal_filehdr
*) dst
;
5570 filehdr_dst
->f_magic
= H_GET_16 (abfd
, filehdr_src
->Machine
);
5571 filehdr_dst
->f_nscns
= H_GET_32 (abfd
, filehdr_src
->NumberOfSections
);
5572 filehdr_dst
->f_timdat
= H_GET_32 (abfd
, filehdr_src
->TimeDateStamp
);
5573 filehdr_dst
->f_symptr
=
5574 GET_FILEHDR_SYMPTR (abfd
, filehdr_src
->PointerToSymbolTable
);
5575 filehdr_dst
->f_nsyms
= H_GET_32 (abfd
, filehdr_src
->NumberOfSymbols
);
5576 filehdr_dst
->f_opthdr
= 0;
5577 filehdr_dst
->f_flags
= 0;
5579 /* Check other magic numbers. */
5580 if (H_GET_16 (abfd
, filehdr_src
->Sig1
) != IMAGE_FILE_MACHINE_UNKNOWN
5581 || H_GET_16 (abfd
, filehdr_src
->Sig2
) != 0xffff
5582 || H_GET_16 (abfd
, filehdr_src
->Version
) != 2
5583 || memcmp (filehdr_src
->ClassID
, header_bigobj_classid
, 16) != 0)
5584 filehdr_dst
->f_opthdr
= 0xffff;
5586 /* Note that CLR metadata are ignored. */
5590 coff_bigobj_swap_filehdr_out (bfd
*abfd
, void * in
, void * out
)
5592 struct internal_filehdr
*filehdr_in
= (struct internal_filehdr
*) in
;
5593 struct external_ANON_OBJECT_HEADER_BIGOBJ
*filehdr_out
=
5594 (struct external_ANON_OBJECT_HEADER_BIGOBJ
*) out
;
5596 memset (filehdr_out
, 0, sizeof (*filehdr_out
));
5598 H_PUT_16 (abfd
, IMAGE_FILE_MACHINE_UNKNOWN
, filehdr_out
->Sig1
);
5599 H_PUT_16 (abfd
, 0xffff, filehdr_out
->Sig2
);
5600 H_PUT_16 (abfd
, 2, filehdr_out
->Version
);
5601 memcpy (filehdr_out
->ClassID
, header_bigobj_classid
, 16);
5602 H_PUT_16 (abfd
, filehdr_in
->f_magic
, filehdr_out
->Machine
);
5603 H_PUT_32 (abfd
, filehdr_in
->f_nscns
, filehdr_out
->NumberOfSections
);
5604 H_PUT_32 (abfd
, filehdr_in
->f_timdat
, filehdr_out
->TimeDateStamp
);
5605 PUT_FILEHDR_SYMPTR (abfd
, filehdr_in
->f_symptr
,
5606 filehdr_out
->PointerToSymbolTable
);
5607 H_PUT_32 (abfd
, filehdr_in
->f_nsyms
, filehdr_out
->NumberOfSymbols
);
5609 return bfd_coff_filhsz (abfd
);
5613 coff_bigobj_swap_sym_in (bfd
* abfd
, void * ext1
, void * in1
)
5615 SYMENT_BIGOBJ
*ext
= (SYMENT_BIGOBJ
*) ext1
;
5616 struct internal_syment
*in
= (struct internal_syment
*) in1
;
5618 if (ext
->e
.e_name
[0] == 0)
5620 in
->_n
._n_n
._n_zeroes
= 0;
5621 in
->_n
._n_n
._n_offset
= H_GET_32 (abfd
, ext
->e
.e
.e_offset
);
5625 #if SYMNMLEN != E_SYMNMLEN
5626 #error we need to cope with truncating or extending SYMNMLEN
5628 memcpy (in
->_n
._n_name
, ext
->e
.e_name
, SYMNMLEN
);
5632 in
->n_value
= H_GET_32 (abfd
, ext
->e_value
);
5633 BFD_ASSERT (sizeof (in
->n_scnum
) >= 4);
5634 in
->n_scnum
= H_GET_32 (abfd
, ext
->e_scnum
);
5635 in
->n_type
= H_GET_16 (abfd
, ext
->e_type
);
5636 in
->n_sclass
= H_GET_8 (abfd
, ext
->e_sclass
);
5637 in
->n_numaux
= H_GET_8 (abfd
, ext
->e_numaux
);
5641 coff_bigobj_swap_sym_out (bfd
* abfd
, void * inp
, void * extp
)
5643 struct internal_syment
*in
= (struct internal_syment
*) inp
;
5644 SYMENT_BIGOBJ
*ext
= (SYMENT_BIGOBJ
*) extp
;
5646 if (in
->_n
._n_name
[0] == 0)
5648 H_PUT_32 (abfd
, 0, ext
->e
.e
.e_zeroes
);
5649 H_PUT_32 (abfd
, in
->_n
._n_n
._n_offset
, ext
->e
.e
.e_offset
);
5653 #if SYMNMLEN != E_SYMNMLEN
5654 #error we need to cope with truncating or extending SYMNMLEN
5656 memcpy (ext
->e
.e_name
, in
->_n
._n_name
, SYMNMLEN
);
5660 H_PUT_32 (abfd
, in
->n_value
, ext
->e_value
);
5661 H_PUT_32 (abfd
, in
->n_scnum
, ext
->e_scnum
);
5663 H_PUT_16 (abfd
, in
->n_type
, ext
->e_type
);
5664 H_PUT_8 (abfd
, in
->n_sclass
, ext
->e_sclass
);
5665 H_PUT_8 (abfd
, in
->n_numaux
, ext
->e_numaux
);
5667 return SYMESZ_BIGOBJ
;
5671 coff_bigobj_swap_aux_in (bfd
*abfd
,
5679 AUXENT_BIGOBJ
*ext
= (AUXENT_BIGOBJ
*) ext1
;
5680 union internal_auxent
*in
= (union internal_auxent
*) in1
;
5682 /* Make sure that all fields in the aux structure are
5684 memset (in
, 0, sizeof * in
);
5691 memcpy (in
->x_file
.x_n
.x_fname
, ext
->File
.Name
,
5692 numaux
* sizeof (AUXENT_BIGOBJ
));
5695 memcpy (in
->x_file
.x_n
.x_fname
, ext
->File
.Name
, sizeof (ext
->File
.Name
));
5703 in
->x_scn
.x_scnlen
= H_GET_32 (abfd
, ext
->Section
.Length
);
5704 in
->x_scn
.x_nreloc
=
5705 H_GET_16 (abfd
, ext
->Section
.NumberOfRelocations
);
5706 in
->x_scn
.x_nlinno
=
5707 H_GET_16 (abfd
, ext
->Section
.NumberOfLinenumbers
);
5708 in
->x_scn
.x_checksum
= H_GET_32 (abfd
, ext
->Section
.Checksum
);
5709 in
->x_scn
.x_associated
= H_GET_16 (abfd
, ext
->Section
.Number
)
5710 | (H_GET_16 (abfd
, ext
->Section
.HighNumber
) << 16);
5711 in
->x_scn
.x_comdat
= H_GET_8 (abfd
, ext
->Section
.Selection
);
5717 in
->x_sym
.x_tagndx
.l
= H_GET_32 (abfd
, ext
->Sym
.WeakDefaultSymIndex
);
5718 /* Characteristics is ignored. */
5724 coff_bigobj_swap_aux_out (bfd
* abfd
,
5728 int indx ATTRIBUTE_UNUSED
,
5729 int numaux ATTRIBUTE_UNUSED
,
5732 union internal_auxent
* in
= (union internal_auxent
*) inp
;
5733 AUXENT_BIGOBJ
*ext
= (AUXENT_BIGOBJ
*) extp
;
5735 memset (ext
, 0, AUXESZ
);
5740 memcpy (ext
->File
.Name
, in
->x_file
.x_n
.x_fname
, sizeof (ext
->File
.Name
));
5749 H_PUT_32 (abfd
, in
->x_scn
.x_scnlen
, ext
->Section
.Length
);
5750 H_PUT_16 (abfd
, in
->x_scn
.x_nreloc
,
5751 ext
->Section
.NumberOfRelocations
);
5752 H_PUT_16 (abfd
, in
->x_scn
.x_nlinno
,
5753 ext
->Section
.NumberOfLinenumbers
);
5754 H_PUT_32 (abfd
, in
->x_scn
.x_checksum
, ext
->Section
.Checksum
);
5755 H_PUT_16 (abfd
, in
->x_scn
.x_associated
& 0xffff,
5756 ext
->Section
.Number
);
5757 H_PUT_16 (abfd
, (in
->x_scn
.x_associated
>> 16),
5758 ext
->Section
.HighNumber
);
5759 H_PUT_8 (abfd
, in
->x_scn
.x_comdat
, ext
->Section
.Selection
);
5765 H_PUT_32 (abfd
, in
->x_sym
.x_tagndx
.l
, ext
->Sym
.WeakDefaultSymIndex
);
5766 H_PUT_32 (abfd
, 1, ext
->Sym
.WeakSearchType
);
5771 static bfd_coff_backend_data bigobj_swap_table
=
5773 coff_bigobj_swap_aux_in
, coff_bigobj_swap_sym_in
, coff_SWAP_lineno_in
,
5774 coff_bigobj_swap_aux_out
, coff_bigobj_swap_sym_out
,
5775 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5776 coff_bigobj_swap_filehdr_out
, coff_SWAP_aouthdr_out
,
5777 coff_SWAP_scnhdr_out
,
5778 FILHSZ_BIGOBJ
, AOUTSZ
, SCNHSZ
, SYMESZ_BIGOBJ
, AUXESZ_BIGOBJ
,
5779 RELSZ
, LINESZ
, FILNMLEN_BIGOBJ
,
5781 COFF_DEFAULT_LONG_SECTION_NAMES
,
5782 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5786 coff_bigobj_swap_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5787 coff_SWAP_reloc_in
, coff_bad_format_hook
, coff_set_arch_mach_hook
,
5788 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5789 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5790 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5791 coff_classify_symbol
, coff_compute_section_file_positions
,
5792 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5793 coff_adjust_symndx
, coff_link_add_one_symbol
,
5794 coff_link_output_has_begun
, coff_final_link_postscript
,
5795 bfd_pe_print_pdata
/* huh */
5798 #endif /* COFF_WITH_PE_BIGOBJ */
5800 #ifndef coff_close_and_cleanup
5801 #define coff_close_and_cleanup _bfd_coff_close_and_cleanup
5804 #ifndef coff_bfd_free_cached_info
5805 #define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
5808 #ifndef coff_get_section_contents
5809 #define coff_get_section_contents _bfd_generic_get_section_contents
5812 #ifndef coff_bfd_copy_private_symbol_data
5813 #define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data
5816 #ifndef coff_bfd_copy_private_header_data
5817 #define coff_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data
5820 #ifndef coff_bfd_copy_private_section_data
5821 #define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data
5824 #ifndef coff_bfd_copy_private_bfd_data
5825 #define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
5828 #ifndef coff_bfd_merge_private_bfd_data
5829 #define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
5832 #ifndef coff_bfd_set_private_flags
5833 #define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
5836 #ifndef coff_bfd_print_private_bfd_data
5837 #define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
5840 #ifndef coff_bfd_is_local_label_name
5841 #define coff_bfd_is_local_label_name _bfd_coff_is_local_label_name
5844 #ifndef coff_bfd_is_target_special_symbol
5845 #define coff_bfd_is_target_special_symbol _bfd_bool_bfd_asymbol_false
5848 #ifndef coff_read_minisymbols
5849 #define coff_read_minisymbols _bfd_generic_read_minisymbols
5852 #ifndef coff_minisymbol_to_symbol
5853 #define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
5856 /* The reloc lookup routine must be supplied by each individual COFF
5858 #ifndef coff_bfd_reloc_type_lookup
5859 #define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
5861 #ifndef coff_bfd_reloc_name_lookup
5862 #define coff_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
5865 #ifndef coff_bfd_get_relocated_section_contents
5866 #define coff_bfd_get_relocated_section_contents \
5867 bfd_generic_get_relocated_section_contents
5870 #ifndef coff_bfd_relax_section
5871 #define coff_bfd_relax_section bfd_generic_relax_section
5874 #ifndef coff_bfd_gc_sections
5875 #define coff_bfd_gc_sections bfd_coff_gc_sections
5878 #ifndef coff_bfd_lookup_section_flags
5879 #define coff_bfd_lookup_section_flags bfd_generic_lookup_section_flags
5882 #ifndef coff_bfd_merge_sections
5883 #define coff_bfd_merge_sections bfd_generic_merge_sections
5886 #ifndef coff_bfd_is_group_section
5887 #define coff_bfd_is_group_section bfd_generic_is_group_section
5890 #ifndef coff_bfd_group_name
5891 #define coff_bfd_group_name bfd_coff_group_name
5894 #ifndef coff_bfd_discard_group
5895 #define coff_bfd_discard_group bfd_generic_discard_group
5898 #ifndef coff_section_already_linked
5899 #define coff_section_already_linked \
5900 _bfd_coff_section_already_linked
5903 #ifndef coff_bfd_define_common_symbol
5904 #define coff_bfd_define_common_symbol bfd_generic_define_common_symbol
5907 #ifndef coff_bfd_link_hide_symbol
5908 #define coff_bfd_link_hide_symbol _bfd_generic_link_hide_symbol
5911 #ifndef coff_bfd_define_start_stop
5912 #define coff_bfd_define_start_stop bfd_generic_define_start_stop
5915 #define CREATE_BIG_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5916 const bfd_target VAR = \
5919 bfd_target_coff_flavour, \
5920 BFD_ENDIAN_BIG, /* Data byte order is big. */ \
5921 BFD_ENDIAN_BIG, /* Header byte order is big. */ \
5922 /* object flags */ \
5923 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5924 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5925 /* section flags */ \
5926 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5927 UNDER, /* Leading symbol underscore. */ \
5928 '/', /* AR_pad_char. */ \
5929 15, /* AR_max_namelen. */ \
5930 0, /* match priority. */ \
5931 TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */ \
5933 /* Data conversion functions. */ \
5934 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5935 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5936 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5938 /* Header conversion functions. */ \
5939 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5940 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5941 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5943 { /* bfd_check_format. */ \
5944 _bfd_dummy_target, \
5946 bfd_generic_archive_p, \
5949 { /* bfd_set_format. */ \
5950 _bfd_bool_bfd_false_error, \
5952 _bfd_generic_mkarchive, \
5953 _bfd_bool_bfd_false_error \
5955 { /* bfd_write_contents. */ \
5956 _bfd_bool_bfd_false_error, \
5957 coff_write_object_contents, \
5958 _bfd_write_archive_contents, \
5959 _bfd_bool_bfd_false_error \
5962 BFD_JUMP_TABLE_GENERIC (coff), \
5963 BFD_JUMP_TABLE_COPY (coff), \
5964 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5965 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5966 BFD_JUMP_TABLE_SYMBOLS (coff), \
5967 BFD_JUMP_TABLE_RELOCS (coff), \
5968 BFD_JUMP_TABLE_WRITE (coff), \
5969 BFD_JUMP_TABLE_LINK (coff), \
5970 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5977 #define CREATE_BIGHDR_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5978 const bfd_target VAR = \
5981 bfd_target_coff_flavour, \
5982 BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \
5983 BFD_ENDIAN_BIG, /* Header byte order is big. */ \
5984 /* object flags */ \
5985 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5986 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5987 /* section flags */ \
5988 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5989 UNDER, /* Leading symbol underscore. */ \
5990 '/', /* AR_pad_char. */ \
5991 15, /* AR_max_namelen. */ \
5992 0, /* match priority. */ \
5993 TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */ \
5995 /* Data conversion functions. */ \
5996 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5997 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5998 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
6000 /* Header conversion functions. */ \
6001 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
6002 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
6003 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
6005 { /* bfd_check_format. */ \
6006 _bfd_dummy_target, \
6008 bfd_generic_archive_p, \
6011 { /* bfd_set_format. */ \
6012 _bfd_bool_bfd_false_error, \
6014 _bfd_generic_mkarchive, \
6015 _bfd_bool_bfd_false_error \
6017 { /* bfd_write_contents. */ \
6018 _bfd_bool_bfd_false_error, \
6019 coff_write_object_contents, \
6020 _bfd_write_archive_contents, \
6021 _bfd_bool_bfd_false_error \
6024 BFD_JUMP_TABLE_GENERIC (coff), \
6025 BFD_JUMP_TABLE_COPY (coff), \
6026 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
6027 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
6028 BFD_JUMP_TABLE_SYMBOLS (coff), \
6029 BFD_JUMP_TABLE_RELOCS (coff), \
6030 BFD_JUMP_TABLE_WRITE (coff), \
6031 BFD_JUMP_TABLE_LINK (coff), \
6032 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
6039 #define CREATE_LITTLE_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
6040 const bfd_target VAR = \
6043 bfd_target_coff_flavour, \
6044 BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \
6045 BFD_ENDIAN_LITTLE, /* Header byte order is little. */ \
6046 /* object flags */ \
6047 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
6048 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
6049 /* section flags */ \
6050 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
6051 UNDER, /* Leading symbol underscore. */ \
6052 '/', /* AR_pad_char. */ \
6053 15, /* AR_max_namelen. */ \
6054 0, /* match priority. */ \
6055 TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */ \
6057 /* Data conversion functions. */ \
6058 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
6059 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
6060 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
6061 /* Header conversion functions. */ \
6062 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
6063 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
6064 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
6066 { /* bfd_check_format. */ \
6067 _bfd_dummy_target, \
6069 bfd_generic_archive_p, \
6072 { /* bfd_set_format. */ \
6073 _bfd_bool_bfd_false_error, \
6075 _bfd_generic_mkarchive, \
6076 _bfd_bool_bfd_false_error \
6078 { /* bfd_write_contents. */ \
6079 _bfd_bool_bfd_false_error, \
6080 coff_write_object_contents, \
6081 _bfd_write_archive_contents, \
6082 _bfd_bool_bfd_false_error \
6085 BFD_JUMP_TABLE_GENERIC (coff), \
6086 BFD_JUMP_TABLE_COPY (coff), \
6087 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
6088 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
6089 BFD_JUMP_TABLE_SYMBOLS (coff), \
6090 BFD_JUMP_TABLE_RELOCS (coff), \
6091 BFD_JUMP_TABLE_WRITE (coff), \
6092 BFD_JUMP_TABLE_LINK (coff), \
6093 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \