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
;
2234 #ifdef LOONGARCH64MAGIC
2235 case LOONGARCH64MAGIC
:
2236 arch
= bfd_arch_loongarch
;
2237 machine
= internal_f
->f_flags
& F_LOONGARCH64_ARCHITECTURE_MASK
;
2242 arch
= bfd_arch_z80
;
2243 switch (internal_f
->f_flags
& F_MACHMASK
)
2245 case bfd_mach_z80strict
<< 12:
2246 case bfd_mach_z80
<< 12:
2247 case bfd_mach_z80n
<< 12:
2248 case bfd_mach_z80full
<< 12:
2249 case bfd_mach_r800
<< 12:
2250 case bfd_mach_gbz80
<< 12:
2251 case bfd_mach_z180
<< 12:
2252 case bfd_mach_ez80_z80
<< 12:
2253 case bfd_mach_ez80_adl
<< 12:
2254 machine
= ((unsigned)internal_f
->f_flags
& F_MACHMASK
) >> 12;
2263 arch
= bfd_arch_z8k
;
2264 switch (internal_f
->f_flags
& F_MACHMASK
)
2267 machine
= bfd_mach_z8001
;
2270 machine
= bfd_mach_z8002
;
2290 if (xcoff_data (abfd
)->cputype
!= -1)
2291 cputype
= xcoff_data (abfd
)->cputype
& 0xff;
2294 /* We did not get a value from the a.out header. If the
2295 file has not been stripped, we may be able to get the
2296 architecture information from the first symbol, if it
2297 is a .file symbol. */
2298 if (obj_raw_syment_count (abfd
) == 0)
2303 struct internal_syment sym
;
2304 bfd_size_type amt
= bfd_coff_symesz (abfd
);
2306 if (bfd_seek (abfd
, obj_sym_filepos (abfd
), SEEK_SET
) != 0)
2308 buf
= _bfd_malloc_and_read (abfd
, amt
, amt
);
2311 bfd_coff_swap_sym_in (abfd
, buf
, & sym
);
2312 if (sym
.n_sclass
== C_FILE
)
2313 cputype
= sym
.n_type
& 0xff;
2320 /* FIXME: We don't handle all cases here. */
2325 arch
= bfd_xcoff_architecture (abfd
);
2326 machine
= bfd_xcoff_machine (abfd
);
2330 arch
= bfd_arch_powerpc
;
2331 machine
= bfd_mach_ppc_601
;
2333 case 2: /* 64 bit PowerPC */
2334 arch
= bfd_arch_powerpc
;
2335 machine
= bfd_mach_ppc_620
;
2338 arch
= bfd_arch_powerpc
;
2339 machine
= bfd_mach_ppc
;
2342 arch
= bfd_arch_rs6000
;
2343 machine
= bfd_mach_rs6k
;
2350 #ifdef SH_ARCH_MAGIC_BIG
2351 case SH_ARCH_MAGIC_BIG
:
2352 case SH_ARCH_MAGIC_LITTLE
:
2354 case SH_ARCH_MAGIC_WINCE
:
2360 #ifdef MIPS_ARCH_MAGIC_WINCE
2361 case MIPS_ARCH_MAGIC_WINCE
:
2362 arch
= bfd_arch_mips
;
2368 #ifdef LYNXCOFFMAGIC
2371 arch
= bfd_arch_sparc
;
2377 arch
= bfd_arch_tic30
;
2382 #ifdef TICOFF_TARGET_ARCH
2383 /* This TI COFF section should be used by all new TI COFF v0 targets. */
2385 arch
= TICOFF_TARGET_ARCH
;
2386 machine
= TICOFF_TARGET_MACHINE_GET (internal_f
->f_flags
);
2392 /* This TI COFF section should be used by all new TI COFF v1/2 targets. */
2393 /* TI COFF1 and COFF2 use the target_id field to specify which arch. */
2396 switch (internal_f
->f_target_id
)
2400 arch
= TICOFF_TARGET_ARCH
;
2401 machine
= TICOFF_TARGET_MACHINE_GET (internal_f
->f_flags
);
2405 arch
= bfd_arch_obscure
;
2407 (_("unrecognized TI COFF target id '0x%x'"),
2408 internal_f
->f_target_id
);
2416 arch
= bfd_arch_mcore
;
2420 default: /* Unreadable input file type. */
2421 arch
= bfd_arch_obscure
;
2425 bfd_default_set_arch_mach (abfd
, arch
, machine
);
2430 symname_in_debug_hook (bfd
*abfd ATTRIBUTE_UNUSED
,
2431 struct internal_syment
*sym ATTRIBUTE_UNUSED
)
2433 #ifdef SYMNAME_IN_DEBUG
2434 return SYMNAME_IN_DEBUG (sym
) != 0;
2443 #define FORCE_SYMNAMES_IN_STRINGS
2446 /* Handle the csect auxent of a C_EXT, C_AIX_WEAKEXT or C_HIDEXT symbol. */
2449 coff_pointerize_aux_hook (bfd
*abfd ATTRIBUTE_UNUSED
,
2450 combined_entry_type
*table_base
,
2451 combined_entry_type
*symbol
,
2452 unsigned int indaux
,
2453 combined_entry_type
*aux
)
2455 BFD_ASSERT (symbol
->is_sym
);
2456 int n_sclass
= symbol
->u
.syment
.n_sclass
;
2458 if (CSECT_SYM_P (n_sclass
)
2459 && indaux
+ 1 == symbol
->u
.syment
.n_numaux
)
2461 BFD_ASSERT (! aux
->is_sym
);
2462 if (SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
) == XTY_LD
)
2464 aux
->u
.auxent
.x_csect
.x_scnlen
.p
=
2465 table_base
+ aux
->u
.auxent
.x_csect
.x_scnlen
.l
;
2466 aux
->fix_scnlen
= 1;
2469 /* Return TRUE to indicate that the caller should not do any
2470 further work on this auxent. */
2474 /* Return FALSE to indicate that this auxent should be handled by
2480 #define coff_pointerize_aux_hook 0
2481 #endif /* ! RS6000COFF_C */
2483 /* Print an aux entry. This returns TRUE if it has printed it. */
2486 coff_print_aux (bfd
*abfd ATTRIBUTE_UNUSED
,
2487 FILE *file ATTRIBUTE_UNUSED
,
2488 combined_entry_type
*table_base ATTRIBUTE_UNUSED
,
2489 combined_entry_type
*symbol ATTRIBUTE_UNUSED
,
2490 combined_entry_type
*aux ATTRIBUTE_UNUSED
,
2491 unsigned int indaux ATTRIBUTE_UNUSED
)
2493 BFD_ASSERT (symbol
->is_sym
);
2494 BFD_ASSERT (! aux
->is_sym
);
2496 if (CSECT_SYM_P (symbol
->u
.syment
.n_sclass
)
2497 && indaux
+ 1 == symbol
->u
.syment
.n_numaux
)
2499 /* This is a csect entry. */
2500 fprintf (file
, "AUX ");
2501 if (SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
) != XTY_LD
)
2503 BFD_ASSERT (! aux
->fix_scnlen
);
2504 fprintf (file
, "val %5" PRId64
,
2505 (int64_t) aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2509 fprintf (file
, "indx ");
2510 if (! aux
->fix_scnlen
)
2511 fprintf (file
, "%4" PRId64
,
2512 (int64_t) aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2514 fprintf (file
, "%4ld",
2515 (long) (aux
->u
.auxent
.x_csect
.x_scnlen
.p
- table_base
));
2518 " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u",
2519 aux
->u
.auxent
.x_csect
.x_parmhash
,
2520 (unsigned int) aux
->u
.auxent
.x_csect
.x_snhash
,
2521 SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
),
2522 SMTYP_ALIGN (aux
->u
.auxent
.x_csect
.x_smtyp
),
2523 (unsigned int) aux
->u
.auxent
.x_csect
.x_smclas
,
2524 aux
->u
.auxent
.x_csect
.x_stab
,
2525 (unsigned int) aux
->u
.auxent
.x_csect
.x_snstab
);
2530 /* Return FALSE to indicate that no special action was taken. */
2538 To write relocations, the back end steps though the
2539 canonical relocation table and create an
2540 @code{internal_reloc}. The symbol index to use is removed from
2541 the @code{offset} field in the symbol table supplied. The
2542 address comes directly from the sum of the section base
2543 address and the relocation offset; the type is dug directly
2544 from the howto field. Then the @code{internal_reloc} is
2545 swapped into the shape of an @code{external_reloc} and written
2553 /* AUX's ld wants relocations to be sorted. */
2555 compare_arelent_ptr (const void * x
, const void * y
)
2557 const arelent
**a
= (const arelent
**) x
;
2558 const arelent
**b
= (const arelent
**) y
;
2559 bfd_size_type aadr
= (*a
)->address
;
2560 bfd_size_type badr
= (*b
)->address
;
2562 return (aadr
< badr
? -1 : badr
< aadr
? 1 : 0);
2565 #endif /* TARG_AUX */
2568 coff_write_relocs (bfd
* abfd
, int first_undef
)
2572 for (s
= abfd
->sections
; s
!= NULL
; s
= s
->next
)
2575 struct external_reloc dst
;
2582 /* Sort relocations before we write them out. */
2585 amt
= s
->reloc_count
;
2586 amt
*= sizeof (arelent
*);
2587 p
= bfd_malloc (amt
);
2590 if (s
->reloc_count
> 0)
2595 memcpy (p
, s
->orelocation
, (size_t) amt
);
2596 qsort (p
, s
->reloc_count
, sizeof (arelent
*), compare_arelent_ptr
);
2601 if (bfd_seek (abfd
, s
->rel_filepos
, SEEK_SET
) != 0)
2604 #ifdef COFF_WITH_EXTENDED_RELOC_COUNTER
2605 if ((obj_pe (abfd
) || obj_go32 (abfd
)) && s
->reloc_count
>= 0xffff)
2607 /* Encode real count here as first reloc. */
2608 struct internal_reloc n
;
2610 memset (& n
, 0, sizeof (n
));
2611 /* Add one to count *this* reloc (grr). */
2612 n
.r_vaddr
= s
->reloc_count
+ 1;
2613 coff_swap_reloc_out (abfd
, &n
, &dst
);
2614 if (bfd_bwrite (& dst
, (bfd_size_type
) bfd_coff_relsz (abfd
),
2615 abfd
) != bfd_coff_relsz (abfd
))
2620 for (i
= 0; i
< s
->reloc_count
; i
++)
2622 struct internal_reloc n
;
2625 memset (& n
, 0, sizeof (n
));
2627 /* Now we've renumbered the symbols we know where the
2628 undefined symbols live in the table. Check the reloc
2629 entries for symbols who's output bfd isn't the right one.
2630 This is because the symbol was undefined (which means
2631 that all the pointers are never made to point to the same
2632 place). This is a bad thing,'cause the symbols attached
2633 to the output bfd are indexed, so that the relocation
2634 entries know which symbol index they point to. So we
2635 have to look up the output symbol here. */
2637 if (q
->sym_ptr_ptr
[0] != NULL
&& q
->sym_ptr_ptr
[0]->the_bfd
!= abfd
)
2640 const char *sname
= q
->sym_ptr_ptr
[0]->name
;
2641 asymbol
**outsyms
= abfd
->outsymbols
;
2643 for (j
= first_undef
; outsyms
[j
]; j
++)
2645 const char *intable
= outsyms
[j
]->name
;
2647 if (strcmp (intable
, sname
) == 0)
2649 /* Got a hit, so repoint the reloc. */
2650 q
->sym_ptr_ptr
= outsyms
+ j
;
2656 n
.r_vaddr
= q
->address
+ s
->vma
;
2659 /* The 29k const/consth reloc pair is a real kludge. The consth
2660 part doesn't have a symbol; it has an offset. So rebuilt
2662 if (q
->howto
->type
== R_IHCONST
)
2663 n
.r_symndx
= q
->addend
;
2666 if (q
->sym_ptr_ptr
&& q
->sym_ptr_ptr
[0] != NULL
)
2668 #ifdef SECTION_RELATIVE_ABSOLUTE_SYMBOL_P
2669 if (SECTION_RELATIVE_ABSOLUTE_SYMBOL_P (q
, s
))
2671 if ((*q
->sym_ptr_ptr
)->section
== bfd_abs_section_ptr
2672 && ((*q
->sym_ptr_ptr
)->flags
& BSF_SECTION_SYM
) != 0)
2674 /* This is a relocation relative to the absolute symbol. */
2678 n
.r_symndx
= get_index ((*(q
->sym_ptr_ptr
)));
2679 /* Check to see if the symbol reloc points to a symbol
2680 we don't have in our symbol table. */
2681 if (n
.r_symndx
> obj_conv_table_size (abfd
))
2683 bfd_set_error (bfd_error_bad_value
);
2684 /* xgettext:c-format */
2685 _bfd_error_handler (_("%pB: reloc against a non-existent"
2686 " symbol index: %ld"),
2693 #ifdef SWAP_OUT_RELOC_OFFSET
2694 n
.r_offset
= q
->addend
;
2698 /* Work out reloc type from what is required. */
2700 SELECT_RELOC (n
, q
->howto
);
2703 n
.r_type
= q
->howto
->type
;
2705 coff_swap_reloc_out (abfd
, &n
, &dst
);
2707 if (bfd_bwrite (& dst
, (bfd_size_type
) bfd_coff_relsz (abfd
),
2708 abfd
) != bfd_coff_relsz (abfd
))
2720 /* Set flags and magic number of a coff file from architecture and machine
2721 type. Result is TRUE if we can represent the arch&type, FALSE if not. */
2724 coff_set_flags (bfd
* abfd
,
2725 unsigned int *magicp ATTRIBUTE_UNUSED
,
2726 unsigned short *flagsp ATTRIBUTE_UNUSED
)
2728 switch (bfd_get_arch (abfd
))
2733 switch (bfd_get_mach (abfd
))
2735 case bfd_mach_z80strict
:
2738 case bfd_mach_z80full
:
2740 case bfd_mach_gbz80
:
2742 case bfd_mach_ez80_z80
:
2743 case bfd_mach_ez80_adl
:
2744 *flagsp
= bfd_get_mach (abfd
) << 12;
2756 switch (bfd_get_mach (abfd
))
2758 case bfd_mach_z8001
: *flagsp
= F_Z8001
; break;
2759 case bfd_mach_z8002
: *flagsp
= F_Z8002
; break;
2760 default: return false;
2766 case bfd_arch_tic30
:
2767 *magicp
= TIC30MAGIC
;
2771 #ifdef TICOFF_DEFAULT_MAGIC
2772 case TICOFF_TARGET_ARCH
:
2773 /* If there's no indication of which version we want, use the default. */
2775 *magicp
= TICOFF_DEFAULT_MAGIC
;
2778 /* We may want to output in a different COFF version. */
2779 switch (abfd
->xvec
->name
[4])
2782 *magicp
= TICOFF0MAGIC
;
2785 *magicp
= TICOFF1MAGIC
;
2788 *magicp
= TICOFF2MAGIC
;
2794 TICOFF_TARGET_MACHINE_SET (flagsp
, bfd_get_mach (abfd
));
2799 case bfd_arch_aarch64
:
2800 * magicp
= AARCH64MAGIC
;
2804 #ifdef LOONGARCH64MAGIC
2805 case bfd_arch_loongarch
:
2806 * magicp
= LOONGARCH64MAGIC
;
2813 * magicp
= ARMPEMAGIC
;
2815 * magicp
= ARMMAGIC
;
2818 if (APCS_SET (abfd
))
2820 if (APCS_26_FLAG (abfd
))
2821 * flagsp
|= F_APCS26
;
2823 if (APCS_FLOAT_FLAG (abfd
))
2824 * flagsp
|= F_APCS_FLOAT
;
2826 if (PIC_FLAG (abfd
))
2829 if (INTERWORK_SET (abfd
) && INTERWORK_FLAG (abfd
))
2830 * flagsp
|= F_INTERWORK
;
2831 switch (bfd_get_mach (abfd
))
2833 case bfd_mach_arm_2
: * flagsp
|= F_ARM_2
; break;
2834 case bfd_mach_arm_2a
: * flagsp
|= F_ARM_2a
; break;
2835 case bfd_mach_arm_3
: * flagsp
|= F_ARM_3
; break;
2836 case bfd_mach_arm_3M
: * flagsp
|= F_ARM_3M
; break;
2837 case bfd_mach_arm_4
: * flagsp
|= F_ARM_4
; break;
2838 case bfd_mach_arm_4T
: * flagsp
|= F_ARM_4T
; break;
2839 case bfd_mach_arm_5
: * flagsp
|= F_ARM_5
; break;
2840 /* FIXME: we do not have F_ARM vaues greater than F_ARM_5.
2841 See also the comment in coff_set_arch_mach_hook(). */
2842 case bfd_mach_arm_5T
: * flagsp
|= F_ARM_5
; break;
2843 case bfd_mach_arm_5TE
: * flagsp
|= F_ARM_5
; break;
2844 case bfd_mach_arm_XScale
: * flagsp
|= F_ARM_5
; break;
2849 #if defined(I386MAGIC) || defined(AMD64MAGIC)
2851 #if defined(I386MAGIC)
2852 *magicp
= I386MAGIC
;
2855 /* Just overwrite the usual value if we're doing Lynx. */
2856 *magicp
= LYNXCOFFMAGIC
;
2858 #if defined AMD64MAGIC
2859 *magicp
= AMD64MAGIC
;
2866 *magicp
= IA64MAGIC
;
2870 #ifdef SH_ARCH_MAGIC_BIG
2872 #ifdef COFF_IMAGE_WITH_PE
2873 *magicp
= SH_ARCH_MAGIC_WINCE
;
2875 if (bfd_big_endian (abfd
))
2876 *magicp
= SH_ARCH_MAGIC_BIG
;
2878 *magicp
= SH_ARCH_MAGIC_LITTLE
;
2883 #ifdef MIPS_ARCH_MAGIC_WINCE
2885 *magicp
= MIPS_ARCH_MAGIC_WINCE
;
2890 case bfd_arch_sparc
:
2891 *magicp
= SPARCMAGIC
;
2893 /* Just overwrite the usual value if we're doing Lynx. */
2894 *magicp
= LYNXCOFFMAGIC
;
2900 case bfd_arch_rs6000
:
2901 case bfd_arch_powerpc
:
2902 BFD_ASSERT (bfd_get_flavour (abfd
) == bfd_target_xcoff_flavour
);
2903 *magicp
= bfd_xcoff_magic_number (abfd
);
2908 case bfd_arch_mcore
:
2909 * magicp
= MCOREMAGIC
;
2913 default: /* Unknown architecture. */
2921 coff_set_arch_mach (bfd
* abfd
,
2922 enum bfd_architecture arch
,
2923 unsigned long machine
)
2926 unsigned short dummy2
;
2928 if (! bfd_default_set_arch_mach (abfd
, arch
, machine
))
2931 if (arch
!= bfd_arch_unknown
2932 && ! coff_set_flags (abfd
, &dummy1
, &dummy2
))
2933 return false; /* We can't represent this type. */
2935 return true; /* We're easy... */
2938 #ifdef COFF_IMAGE_WITH_PE
2940 /* This is used to sort sections by VMA, as required by PE image
2944 sort_by_secaddr (const void * arg1
, const void * arg2
)
2946 const asection
*a
= *(const asection
**) arg1
;
2947 const asection
*b
= *(const asection
**) arg2
;
2949 if (a
->vma
< b
->vma
)
2951 else if (a
->vma
> b
->vma
)
2957 #endif /* COFF_IMAGE_WITH_PE */
2959 /* Calculate the file position for each section. */
2961 #define ALIGN_SECTIONS_IN_FILE
2963 #undef ALIGN_SECTIONS_IN_FILE
2967 coff_compute_section_file_positions (bfd
* abfd
)
2970 file_ptr sofar
= bfd_coff_filhsz (abfd
);
2972 unsigned int target_index
;
2973 #ifdef ALIGN_SECTIONS_IN_FILE
2974 asection
*previous
= NULL
;
2978 #ifdef COFF_IMAGE_WITH_PE
2979 unsigned int page_size
;
2981 if (coff_data (abfd
)->link_info
2982 || (pe_data (abfd
) && pe_data (abfd
)->pe_opthdr
.FileAlignment
))
2984 page_size
= pe_data (abfd
)->pe_opthdr
.FileAlignment
;
2986 /* If no file alignment has been set, default to one.
2987 This repairs 'ld -r' for arm-wince-pe target. */
2992 page_size
= PE_DEF_FILE_ALIGNMENT
;
2994 #ifdef COFF_PAGE_SIZE
2995 unsigned int page_size
= COFF_PAGE_SIZE
;
3000 /* On XCOFF, if we have symbols, set up the .debug section. */
3001 if (bfd_get_symcount (abfd
) > 0)
3004 bfd_size_type i
, symcount
;
3008 symcount
= bfd_get_symcount (abfd
);
3009 for (symp
= abfd
->outsymbols
, i
= 0; i
< symcount
; symp
++, i
++)
3011 coff_symbol_type
*cf
;
3013 cf
= coff_symbol_from (*symp
);
3015 && cf
->native
!= NULL
3016 && cf
->native
->is_sym
3017 && SYMNAME_IN_DEBUG (&cf
->native
->u
.syment
))
3021 len
= strlen (bfd_asymbol_name (*symp
));
3022 if (len
> SYMNMLEN
|| bfd_coff_force_symnames_in_strings (abfd
))
3023 sz
+= len
+ 1 + bfd_coff_debug_string_prefix_length (abfd
);
3030 dsec
= bfd_make_section_old_way (abfd
, DOT_DEBUG
);
3034 dsec
->flags
|= SEC_HAS_CONTENTS
;
3039 if (bfd_get_start_address (abfd
))
3040 /* A start address may have been added to the original file. In this
3041 case it will need an optional header to record it. */
3042 abfd
->flags
|= EXEC_P
;
3044 if (abfd
->flags
& EXEC_P
)
3045 sofar
+= bfd_coff_aoutsz (abfd
);
3047 else if (xcoff_data (abfd
)->full_aouthdr
)
3048 sofar
+= bfd_coff_aoutsz (abfd
);
3050 sofar
+= SMALL_AOUTSZ
;
3053 sofar
+= abfd
->section_count
* bfd_coff_scnhsz (abfd
);
3056 /* XCOFF handles overflows in the reloc and line number count fields
3057 by allocating a new section header to hold the correct counts. */
3058 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3059 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3060 sofar
+= bfd_coff_scnhsz (abfd
);
3063 #ifdef COFF_IMAGE_WITH_PE
3065 /* PE requires the sections to be in memory order when listed in
3066 the section headers. It also does not like empty loadable
3067 sections. The sections apparently do not have to be in the
3068 right order in the image file itself, but we do need to get the
3069 target_index values right. */
3072 asection
**section_list
;
3076 #ifdef COFF_PAGE_SIZE
3077 /* Clear D_PAGED if section / file alignment aren't suitable for
3078 paging at COFF_PAGE_SIZE granularity. */
3079 if (pe_data (abfd
)->pe_opthdr
.SectionAlignment
< COFF_PAGE_SIZE
3080 || page_size
< COFF_PAGE_SIZE
)
3081 abfd
->flags
&= ~D_PAGED
;
3085 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3088 /* We allocate an extra cell to simplify the final loop. */
3089 amt
= sizeof (struct asection
*) * (count
+ 1);
3090 section_list
= (asection
**) bfd_malloc (amt
);
3091 if (section_list
== NULL
)
3095 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3097 section_list
[i
] = current
;
3100 section_list
[i
] = NULL
;
3102 qsort (section_list
, count
, sizeof (asection
*), sort_by_secaddr
);
3104 /* Rethread the linked list into sorted order; at the same time,
3105 assign target_index values. */
3107 abfd
->sections
= NULL
;
3108 abfd
->section_last
= NULL
;
3109 for (i
= 0; i
< count
; i
++)
3111 current
= section_list
[i
];
3112 bfd_section_list_append (abfd
, current
);
3114 /* Later, if the section has zero size, we'll be throwing it
3115 away, so we don't want to number it now. Note that having
3116 a zero size and having real contents are different
3117 concepts: .bss has no contents, but (usually) non-zero
3119 if (current
->size
== 0)
3121 /* Discard. However, it still might have (valid) symbols
3122 in it, so arbitrarily set it to section 1 (indexing is
3123 1-based here; usually .text). __end__ and other
3124 contents of .endsection really have this happen.
3125 FIXME: This seems somewhat dubious. */
3126 current
->target_index
= 1;
3129 current
->target_index
= target_index
++;
3132 free (section_list
);
3134 #else /* ! COFF_IMAGE_WITH_PE */
3136 /* Set the target_index field. */
3138 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3139 current
->target_index
= target_index
++;
3141 #endif /* ! COFF_IMAGE_WITH_PE */
3143 if (target_index
>= bfd_coff_max_nscns (abfd
))
3145 bfd_set_error (bfd_error_file_too_big
);
3147 /* xgettext:c-format */
3148 (_("%pB: too many sections (%d)"), abfd
, target_index
);
3152 align_adjust
= false;
3153 for (current
= abfd
->sections
;
3155 current
= current
->next
)
3157 #ifdef COFF_IMAGE_WITH_PE
3158 /* With PE we have to pad each section to be a multiple of its
3159 page size too, and remember both sizes. */
3160 if (coff_section_data (abfd
, current
) == NULL
)
3162 size_t amt
= sizeof (struct coff_section_tdata
);
3164 current
->used_by_bfd
= bfd_zalloc (abfd
, amt
);
3165 if (current
->used_by_bfd
== NULL
)
3168 if (pei_section_data (abfd
, current
) == NULL
)
3170 size_t amt
= sizeof (struct pei_section_tdata
);
3172 coff_section_data (abfd
, current
)->tdata
= bfd_zalloc (abfd
, amt
);
3173 if (coff_section_data (abfd
, current
)->tdata
== NULL
)
3176 if (pei_section_data (abfd
, current
)->virt_size
== 0)
3177 pei_section_data (abfd
, current
)->virt_size
= current
->size
;
3180 /* Only deal with sections which have contents. */
3181 if (!(current
->flags
& SEC_HAS_CONTENTS
))
3184 current
->rawsize
= current
->size
;
3186 #ifdef COFF_IMAGE_WITH_PE
3187 /* Make sure we skip empty sections in a PE image. */
3188 if (current
->size
== 0)
3192 /* Align the sections in the file to the same boundary on
3193 which they are aligned in virtual memory. */
3194 #ifdef ALIGN_SECTIONS_IN_FILE
3195 if ((abfd
->flags
& EXEC_P
) != 0)
3197 /* Make sure this section is aligned on the right boundary - by
3198 padding the previous section up if necessary. */
3201 #ifdef COFF_IMAGE_WITH_PE
3202 sofar
= BFD_ALIGN (sofar
, page_size
);
3204 sofar
= BFD_ALIGN (sofar
, (bfd_vma
) 1 << current
->alignment_power
);
3208 /* Make sure the file offset and the vma of .text/.data are at the
3209 same page offset, so that the file can be mmap'ed without being
3210 relocated. Failing that, AIX is able to load and execute the
3211 program, but it will be silently relocated (possible as
3212 executables are PIE). But the relocation is slightly costly and
3213 complexify the use of addr2line or gdb. So better to avoid it,
3214 like does the native linker. Usually gnu ld makes sure that
3215 the vma of .text is the file offset so this issue shouldn't
3216 appear unless you are stripping such an executable.
3218 AIX loader checks the text section alignment of (vma - filepos),
3219 and the native linker doesn't try to align the text sections.
3222 0 .text 000054cc 10000128 10000128 00000128 2**5
3223 CONTENTS, ALLOC, LOAD, CODE
3225 Don't perform the above tweak if the previous one is .tdata,
3226 as it will increase the memory allocated for every threads
3227 created and not just improve performances with gdb.
3230 if ((!strcmp (current
->name
, _TEXT
)
3231 || !strcmp (current
->name
, _DATA
))
3232 && (previous
== NULL
|| strcmp(previous
->name
, _TDATA
)))
3234 bfd_vma align
= 4096;
3235 bfd_vma sofar_off
= sofar
% align
;
3236 bfd_vma vma_off
= current
->vma
% align
;
3238 if (vma_off
> sofar_off
)
3239 sofar
+= vma_off
- sofar_off
;
3240 else if (vma_off
< sofar_off
)
3241 sofar
+= align
+ vma_off
- sofar_off
;
3244 if (previous
!= NULL
)
3245 previous
->size
+= sofar
- old_sofar
;
3250 /* In demand paged files the low order bits of the file offset
3251 must match the low order bits of the virtual address. */
3252 #ifdef COFF_PAGE_SIZE
3253 if ((abfd
->flags
& D_PAGED
) != 0
3254 && (current
->flags
& SEC_ALLOC
) != 0)
3255 sofar
+= (current
->vma
- (bfd_vma
) sofar
) % page_size
;
3257 current
->filepos
= sofar
;
3259 #ifdef COFF_IMAGE_WITH_PE
3260 /* Set the padded size. */
3261 current
->size
= (current
->size
+ page_size
- 1) & -page_size
;
3264 sofar
+= current
->size
;
3266 #ifdef ALIGN_SECTIONS_IN_FILE
3267 /* Make sure that this section is of the right size too. */
3268 if ((abfd
->flags
& EXEC_P
) == 0)
3270 bfd_size_type old_size
;
3272 old_size
= current
->size
;
3273 current
->size
= BFD_ALIGN (current
->size
,
3274 (bfd_vma
) 1 << current
->alignment_power
);
3275 align_adjust
= current
->size
!= old_size
;
3276 sofar
+= current
->size
- old_size
;
3281 #ifdef COFF_IMAGE_WITH_PE
3282 sofar
= BFD_ALIGN (sofar
, page_size
);
3284 sofar
= BFD_ALIGN (sofar
, (bfd_vma
) 1 << current
->alignment_power
);
3286 align_adjust
= sofar
!= old_sofar
;
3287 current
->size
+= sofar
- old_sofar
;
3291 #ifdef COFF_IMAGE_WITH_PE
3292 /* For PE we need to make sure we pad out to the aligned
3293 size, in case the caller only writes out data to the
3295 if (pei_section_data (abfd
, current
)->virt_size
< current
->size
)
3296 align_adjust
= true;
3300 /* Force .lib sections to start at zero. The vma is then
3301 incremented in coff_set_section_contents. This is right for
3303 if (strcmp (current
->name
, _LIB
) == 0)
3304 bfd_set_section_vma (current
, 0);
3307 #ifdef ALIGN_SECTIONS_IN_FILE
3312 /* It is now safe to write to the output file. If we needed an
3313 alignment adjustment for the last section, then make sure that
3314 there is a byte at offset sofar. If there are no symbols and no
3315 relocs, then nothing follows the last section. If we don't force
3316 the last byte out, then the file may appear to be truncated. */
3322 if (bfd_seek (abfd
, sofar
- 1, SEEK_SET
) != 0
3323 || bfd_bwrite (&b
, (bfd_size_type
) 1, abfd
) != 1)
3327 /* Make sure the relocations are aligned. We don't need to make
3328 sure that this byte exists, because it will only matter if there
3329 really are relocs. */
3330 sofar
= BFD_ALIGN (sofar
,
3331 (bfd_vma
) 1 << COFF_DEFAULT_SECTION_ALIGNMENT_POWER
);
3333 obj_relocbase (abfd
) = sofar
;
3334 abfd
->output_has_begun
= true;
3339 #ifdef COFF_IMAGE_WITH_PE
3342 coff_read_word (bfd
*abfd
, unsigned int *value
, unsigned int *pelength
)
3347 status
= bfd_bread (b
, (bfd_size_type
) 2, abfd
);
3355 *value
= (unsigned int) b
[0];
3357 *value
= (unsigned int) (b
[0] + (b
[1] << 8));
3359 *pelength
+= status
;
3365 coff_compute_checksum (bfd
*abfd
, unsigned int *pelength
)
3374 filepos
= (file_ptr
) 0;
3378 if (bfd_seek (abfd
, filepos
, SEEK_SET
) != 0)
3381 more_data
= coff_read_word (abfd
, &value
, pelength
);
3383 total
= 0xffff & (total
+ (total
>> 0x10));
3388 return (0xffff & (total
+ (total
>> 0x10)));
3392 coff_apply_checksum (bfd
*abfd
)
3394 unsigned int computed
;
3395 unsigned int checksum
= 0;
3396 unsigned int peheader
;
3397 unsigned int pelength
;
3399 if (bfd_seek (abfd
, 0x3c, SEEK_SET
) != 0)
3402 if (!coff_read_word (abfd
, &peheader
, &pelength
))
3405 if (bfd_seek (abfd
, peheader
+ 0x58, SEEK_SET
) != 0)
3409 bfd_bwrite (&checksum
, (bfd_size_type
) 4, abfd
);
3411 if (bfd_seek (abfd
, peheader
, SEEK_SET
) != 0)
3414 computed
= coff_compute_checksum (abfd
, &pelength
);
3416 checksum
= computed
+ pelength
;
3418 if (bfd_seek (abfd
, peheader
+ 0x58, SEEK_SET
) != 0)
3421 bfd_bwrite (&checksum
, (bfd_size_type
) 4, abfd
);
3426 #endif /* COFF_IMAGE_WITH_PE */
3429 coff_write_object_contents (bfd
* abfd
)
3432 bool hasrelocs
= false;
3433 bool haslinno
= false;
3434 #ifdef COFF_IMAGE_WITH_PE
3435 bool hasdebug
= false;
3438 file_ptr reloc_base
;
3439 file_ptr lineno_base
;
3441 unsigned long reloc_size
= 0, reloc_count
= 0;
3442 unsigned long lnno_size
= 0;
3443 bool long_section_names
;
3444 asection
*text_sec
= NULL
;
3445 asection
*data_sec
= NULL
;
3446 asection
*bss_sec
= NULL
;
3448 asection
*tdata_sec
= NULL
;
3449 asection
*tbss_sec
= NULL
;
3451 struct internal_filehdr internal_f
;
3452 struct internal_aouthdr internal_a
;
3453 #ifdef COFF_LONG_SECTION_NAMES
3454 size_t string_size
= STRING_SIZE_SIZE
;
3457 bfd_set_error (bfd_error_system_call
);
3459 /* Make a pass through the symbol table to count line number entries and
3460 put them into the correct asections. */
3461 lnno_size
= coff_count_linenumbers (abfd
) * bfd_coff_linesz (abfd
);
3463 if (! abfd
->output_has_begun
)
3465 if (! coff_compute_section_file_positions (abfd
))
3469 reloc_base
= obj_relocbase (abfd
);
3471 /* Work out the size of the reloc and linno areas. */
3473 for (current
= abfd
->sections
; current
!= NULL
; current
=
3476 #ifdef COFF_WITH_EXTENDED_RELOC_COUNTER
3477 /* We store the actual reloc count in the first reloc's addr. */
3478 if ((obj_pe (abfd
) || obj_go32 (abfd
)) && current
->reloc_count
>= 0xffff)
3481 reloc_count
+= current
->reloc_count
;
3484 reloc_size
= reloc_count
* bfd_coff_relsz (abfd
);
3486 lineno_base
= reloc_base
+ reloc_size
;
3487 sym_base
= lineno_base
+ lnno_size
;
3489 /* Indicate in each section->line_filepos its actual file address. */
3490 for (current
= abfd
->sections
; current
!= NULL
; current
=
3493 if (current
->lineno_count
)
3495 current
->line_filepos
= lineno_base
;
3496 current
->moving_line_filepos
= lineno_base
;
3497 lineno_base
+= current
->lineno_count
* bfd_coff_linesz (abfd
);
3500 current
->line_filepos
= 0;
3502 if (current
->reloc_count
)
3504 current
->rel_filepos
= reloc_base
;
3505 reloc_base
+= current
->reloc_count
* bfd_coff_relsz (abfd
);
3506 #ifdef COFF_WITH_EXTENDED_RELOC_COUNTER
3507 /* Extra reloc to hold real count. */
3508 if ((obj_pe (abfd
) || obj_go32 (abfd
)) && current
->reloc_count
>= 0xffff)
3509 reloc_base
+= bfd_coff_relsz (abfd
);
3513 current
->rel_filepos
= 0;
3516 /* Write section headers to the file. */
3517 internal_f
.f_nscns
= 0;
3519 if ((abfd
->flags
& EXEC_P
) != 0)
3520 scn_base
= bfd_coff_filhsz (abfd
) + bfd_coff_aoutsz (abfd
);
3523 scn_base
= bfd_coff_filhsz (abfd
);
3526 if (xcoff_data (abfd
)->full_aouthdr
)
3527 scn_base
+= bfd_coff_aoutsz (abfd
);
3529 scn_base
+= SMALL_AOUTSZ
;
3534 if (bfd_seek (abfd
, scn_base
, SEEK_SET
) != 0)
3537 long_section_names
= false;
3538 for (current
= abfd
->sections
;
3540 current
= current
->next
)
3542 struct internal_scnhdr section
;
3543 #ifdef COFF_IMAGE_WITH_PE
3544 bool is_reloc_section
= false;
3546 if (strcmp (current
->name
, DOT_RELOC
) == 0)
3548 is_reloc_section
= true;
3550 pe_data (abfd
)->has_reloc_section
= 1;
3554 internal_f
.f_nscns
++;
3556 strncpy (section
.s_name
, current
->name
, SCNNMLEN
);
3558 #ifdef COFF_LONG_SECTION_NAMES
3559 /* Handle long section names as in PE. This must be compatible
3560 with the code in coff_write_symbols and _bfd_coff_final_link. */
3561 if (bfd_coff_long_section_names (abfd
))
3565 len
= strlen (current
->name
);
3568 /* The s_name field is defined to be NUL-padded but need not be
3569 NUL-terminated. We use a temporary buffer so that we can still
3570 sprintf all eight chars without splatting a terminating NUL
3571 over the first byte of the following member (s_paddr). */
3572 /* PR 21096: The +20 is to stop a bogus warning from gcc7 about
3573 a possible buffer overflow. */
3574 char s_name_buf
[SCNNMLEN
+ 1 + 20];
3576 /* An inherent limitation of the /nnnnnnn notation used to indicate
3577 the offset of the long name in the string table is that we
3578 cannot address entries beyone the ten million byte boundary. */
3579 if (string_size
>= 10000000)
3581 bfd_set_error (bfd_error_file_too_big
);
3583 /* xgettext:c-format */
3584 (_("%pB: section %pA: string table overflow at offset %ld"),
3585 abfd
, current
, (unsigned long) string_size
);
3589 /* We do not need to use snprintf here as we have already verfied
3590 that string_size is not too big, plus we have an overlarge
3591 buffer, just in case. */
3592 sprintf (s_name_buf
, "/%lu", (unsigned long) string_size
);
3593 /* Then strncpy takes care of any padding for us. */
3594 strncpy (section
.s_name
, s_name_buf
, SCNNMLEN
);
3595 string_size
+= len
+ 1;
3596 long_section_names
= true;
3602 /* Always set s_vaddr of .lib to 0. This is right for SVR3.2
3603 Ian Taylor <ian@cygnus.com>. */
3604 if (strcmp (current
->name
, _LIB
) == 0)
3605 section
.s_vaddr
= 0;
3608 section
.s_vaddr
= current
->vma
;
3609 section
.s_paddr
= current
->lma
;
3610 section
.s_size
= current
->size
;
3611 #ifdef coff_get_section_load_page
3612 section
.s_page
= coff_get_section_load_page (current
);
3618 section
.s_paddr
= 0;
3620 #ifdef COFF_IMAGE_WITH_PE
3621 /* Reminder: s_paddr holds the virtual size of the section. */
3622 if (coff_section_data (abfd
, current
) != NULL
3623 && pei_section_data (abfd
, current
) != NULL
)
3624 section
.s_paddr
= pei_section_data (abfd
, current
)->virt_size
;
3626 section
.s_paddr
= 0;
3629 /* If this section has no size or is unloadable then the scnptr
3631 if (current
->size
== 0
3632 || (current
->flags
& (SEC_LOAD
| SEC_HAS_CONTENTS
)) == 0)
3633 section
.s_scnptr
= 0;
3635 section
.s_scnptr
= current
->filepos
;
3637 section
.s_relptr
= current
->rel_filepos
;
3638 section
.s_lnnoptr
= current
->line_filepos
;
3639 section
.s_nreloc
= current
->reloc_count
;
3640 section
.s_nlnno
= current
->lineno_count
;
3641 #ifndef COFF_IMAGE_WITH_PE
3642 /* In PEI, relocs come in the .reloc section. */
3643 if (current
->reloc_count
!= 0)
3646 if (current
->lineno_count
!= 0)
3648 #ifdef COFF_IMAGE_WITH_PE
3649 if ((current
->flags
& SEC_DEBUGGING
) != 0
3650 && ! is_reloc_section
)
3656 /* Indicate the use of an XCOFF overflow section header. */
3657 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3659 section
.s_nreloc
= 0xffff;
3660 section
.s_nlnno
= 0xffff;
3665 section
.s_flags
= sec_to_styp_flags (current
->name
, current
->flags
);
3667 if (!strcmp (current
->name
, _TEXT
))
3669 else if (!strcmp (current
->name
, _DATA
))
3671 else if (!strcmp (current
->name
, _BSS
))
3674 else if (!strcmp (current
->name
, _TDATA
))
3675 tdata_sec
= current
;
3676 else if (!strcmp (current
->name
, _TBSS
))
3681 #ifdef COFF_ENCODE_ALIGNMENT
3682 if (COFF_ENCODE_ALIGNMENT (abfd
, section
, current
->alignment_power
)
3683 && (COFF_DECODE_ALIGNMENT (section
.s_flags
)
3684 != current
->alignment_power
))
3686 bool warn
= (coff_data (abfd
)->link_info
3687 && !bfd_link_relocatable (coff_data (abfd
)->link_info
));
3690 /* xgettext:c-format */
3691 (_("%pB:%s section %s: alignment 2**%u not representable"),
3692 abfd
, warn
? " warning:" : "", current
->name
,
3693 current
->alignment_power
);
3696 bfd_set_error (bfd_error_nonrepresentable_section
);
3702 #ifdef COFF_IMAGE_WITH_PE
3703 /* Suppress output of the sections if they are null. ld
3704 includes the bss and data sections even if there is no size
3705 assigned to them. NT loader doesn't like it if these section
3706 headers are included if the sections themselves are not
3707 needed. See also coff_compute_section_file_positions. */
3708 if (section
.s_size
== 0)
3709 internal_f
.f_nscns
--;
3714 bfd_size_type amt
= bfd_coff_scnhsz (abfd
);
3716 if (bfd_coff_swap_scnhdr_out (abfd
, §ion
, &buff
) == 0
3717 || bfd_bwrite (& buff
, amt
, abfd
) != amt
)
3722 /* PE stores COMDAT section information in the symbol table. If
3723 this section is supposed to have some COMDAT info, track down
3724 the symbol in the symbol table and modify it. */
3725 if ((current
->flags
& SEC_LINK_ONCE
) != 0)
3727 unsigned int i
, count
;
3729 coff_symbol_type
*csym
= NULL
;
3733 count
= bfd_get_symcount (abfd
);
3734 for (i
= 0, psym
= abfd
->outsymbols
; i
< count
; i
++, psym
++)
3736 if ((*psym
)->section
!= current
)
3739 /* Remember the location of the first symbol in this
3741 if (psymsec
== NULL
)
3744 /* See if this is the section symbol. */
3745 if (strcmp ((*psym
)->name
, current
->name
) == 0)
3747 csym
= coff_symbol_from (*psym
);
3749 || csym
->native
== NULL
3750 || ! csym
->native
->is_sym
3751 || csym
->native
->u
.syment
.n_numaux
< 1
3752 || csym
->native
->u
.syment
.n_sclass
!= C_STAT
3753 || csym
->native
->u
.syment
.n_type
!= T_NULL
)
3756 /* Here *PSYM is the section symbol for CURRENT. */
3763 Note that we might not if we're converting the file from
3764 some other object file format. */
3767 combined_entry_type
*aux
;
3769 /* We don't touch the x_checksum field. The
3770 x_associated field is not currently supported. */
3772 aux
= csym
->native
+ 1;
3773 BFD_ASSERT (! aux
->is_sym
);
3774 switch (current
->flags
& SEC_LINK_DUPLICATES
)
3776 case SEC_LINK_DUPLICATES_DISCARD
:
3777 aux
->u
.auxent
.x_scn
.x_comdat
= IMAGE_COMDAT_SELECT_ANY
;
3780 case SEC_LINK_DUPLICATES_ONE_ONLY
:
3781 aux
->u
.auxent
.x_scn
.x_comdat
=
3782 IMAGE_COMDAT_SELECT_NODUPLICATES
;
3785 case SEC_LINK_DUPLICATES_SAME_SIZE
:
3786 aux
->u
.auxent
.x_scn
.x_comdat
=
3787 IMAGE_COMDAT_SELECT_SAME_SIZE
;
3790 case SEC_LINK_DUPLICATES_SAME_CONTENTS
:
3791 aux
->u
.auxent
.x_scn
.x_comdat
=
3792 IMAGE_COMDAT_SELECT_EXACT_MATCH
;
3796 /* The COMDAT symbol must be the first symbol from this
3797 section in the symbol table. In order to make this
3798 work, we move the COMDAT symbol before the first
3799 symbol we found in the search above. It's OK to
3800 rearrange the symbol table at this point, because
3801 coff_renumber_symbols is going to rearrange it
3802 further and fix up all the aux entries. */
3803 if (psym
!= psymsec
)
3809 for (pcopy
= psym
; pcopy
> psymsec
; pcopy
--)
3810 pcopy
[0] = pcopy
[-1];
3815 #endif /* COFF_WITH_PE */
3820 /* XCOFF handles overflows in the reloc and line number count fields
3821 by creating a new section header to hold the correct values. */
3822 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3824 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3826 struct internal_scnhdr scnhdr
;
3830 internal_f
.f_nscns
++;
3831 memcpy (scnhdr
.s_name
, ".ovrflo", 8);
3832 scnhdr
.s_paddr
= current
->reloc_count
;
3833 scnhdr
.s_vaddr
= current
->lineno_count
;
3835 scnhdr
.s_scnptr
= 0;
3836 scnhdr
.s_relptr
= current
->rel_filepos
;
3837 scnhdr
.s_lnnoptr
= current
->line_filepos
;
3838 scnhdr
.s_nreloc
= current
->target_index
;
3839 scnhdr
.s_nlnno
= current
->target_index
;
3840 scnhdr
.s_flags
= STYP_OVRFLO
;
3841 amt
= bfd_coff_scnhsz (abfd
);
3842 if (bfd_coff_swap_scnhdr_out (abfd
, &scnhdr
, &buff
) == 0
3843 || bfd_bwrite (& buff
, amt
, abfd
) != amt
)
3850 #if defined (COFF_GO32_EXE) || defined (COFF_GO32)
3851 /* Pad section headers. */
3852 if ((abfd
->flags
& EXEC_P
) && abfd
->sections
!= NULL
)
3854 file_ptr cur_ptr
= scn_base
3855 + abfd
->section_count
* bfd_coff_scnhsz (abfd
);
3856 long fill_size
= (abfd
->sections
->filepos
- cur_ptr
);
3857 bfd_byte
*b
= bfd_zmalloc (fill_size
);
3860 bfd_bwrite (b
, fill_size
, abfd
);
3866 /* OK, now set up the filehdr... */
3868 /* Don't include the internal abs section in the section count */
3870 /* We will NOT put a fucking timestamp in the header here. Every time you
3871 put it back, I will come in and take it out again. I'm sorry. This
3872 field does not belong here. We fill it with a 0 so it compares the
3873 same but is not a reasonable time. -- gnu@cygnus.com */
3874 internal_f
.f_timdat
= 0;
3875 internal_f
.f_flags
= 0;
3877 if (abfd
->flags
& EXEC_P
)
3878 internal_f
.f_opthdr
= bfd_coff_aoutsz (abfd
);
3881 internal_f
.f_opthdr
= 0;
3884 if (xcoff_data (abfd
)->full_aouthdr
)
3885 internal_f
.f_opthdr
= bfd_coff_aoutsz (abfd
);
3887 internal_f
.f_opthdr
= SMALL_AOUTSZ
;
3893 internal_f
.f_flags
|= F_RELFLG
;
3895 internal_f
.f_flags
|= F_LNNO
;
3896 if (abfd
->flags
& EXEC_P
)
3897 internal_f
.f_flags
|= F_EXEC
;
3898 #ifdef COFF_IMAGE_WITH_PE
3900 internal_f
.f_flags
|= IMAGE_FILE_DEBUG_STRIPPED
;
3901 if (pe_data (abfd
)->real_flags
& IMAGE_FILE_LARGE_ADDRESS_AWARE
)
3902 internal_f
.f_flags
|= IMAGE_FILE_LARGE_ADDRESS_AWARE
;
3905 #if !defined(COFF_WITH_pex64) && !defined(COFF_WITH_peAArch64) && !defined(COFF_WITH_peLoongArch64)
3907 internal_f
.f_flags
|= IMAGE_FILE_32BIT_MACHINE
;
3909 if (bfd_little_endian (abfd
))
3910 internal_f
.f_flags
|= F_AR32WR
;
3912 internal_f
.f_flags
|= F_AR32W
;
3917 /* Target id is used in TI COFF v1 and later; COFF0 won't use this field,
3918 but it doesn't hurt to set it internally. */
3919 internal_f
.f_target_id
= TI_TARGET_ID
;
3922 /* FIXME, should do something about the other byte orders and
3926 if ((abfd
->flags
& DYNAMIC
) != 0)
3927 internal_f
.f_flags
|= F_SHROBJ
;
3928 if (bfd_get_section_by_name (abfd
, _LOADER
) != NULL
)
3929 internal_f
.f_flags
|= F_DYNLOAD
;
3932 memset (&internal_a
, 0, sizeof internal_a
);
3934 /* Set up architecture-dependent stuff. */
3936 unsigned int magic
= 0;
3937 unsigned short flags
= 0;
3939 coff_set_flags (abfd
, &magic
, &flags
);
3940 internal_f
.f_magic
= magic
;
3941 internal_f
.f_flags
|= flags
;
3942 /* ...and the "opt"hdr... */
3944 #ifdef TICOFF_AOUT_MAGIC
3945 internal_a
.magic
= TICOFF_AOUT_MAGIC
;
3946 #define __A_MAGIC_SET__
3950 #define __A_MAGIC_SET__
3951 internal_a
.magic
= ZMAGIC
;
3954 #if defined(AARCH64)
3955 #define __A_MAGIC_SET__
3956 internal_a
.magic
= ZMAGIC
;
3959 #if defined(LOONGARCH64)
3960 #define __A_MAGIC_SET__
3961 internal_a
.magic
= ZMAGIC
;
3964 #if defined MCORE_PE
3965 #define __A_MAGIC_SET__
3966 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR_MAGIC
;
3970 #define __A_MAGIC_SET__
3972 internal_a
.magic
= LYNXCOFFMAGIC
;
3974 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR64_MAGIC
;
3976 internal_a
.magic
= ZMAGIC
;
3981 #define __A_MAGIC_SET__
3982 internal_a
.magic
= PE32PMAGIC
;
3986 #define __A_MAGIC_SET__
3988 internal_a
.magic
= LYNXCOFFMAGIC
;
3993 #define __A_MAGIC_SET__
3994 internal_a
.magic
= (abfd
->flags
& D_PAGED
) ? RS6K_AOUTHDR_ZMAGIC
:
3995 (abfd
->flags
& WP_TEXT
) ? RS6K_AOUTHDR_NMAGIC
:
3996 RS6K_AOUTHDR_OMAGIC
;
3999 #if defined(SH) && defined(COFF_WITH_PE)
4000 #define __A_MAGIC_SET__
4001 internal_a
.magic
= SH_PE_MAGIC
;
4004 #if defined(MIPS) && defined(COFF_WITH_PE)
4005 #define __A_MAGIC_SET__
4006 internal_a
.magic
= MIPS_PE_MAGIC
;
4009 #ifndef __A_MAGIC_SET__
4010 #include "Your aouthdr magic number is not being set!"
4012 #undef __A_MAGIC_SET__
4017 /* XCOFF 32bit needs this to have new behaviour for n_type field. */
4018 internal_a
.vstamp
= 2;
4020 /* FIXME: Does anybody ever set this to another value? */
4021 internal_a
.vstamp
= 0;
4024 /* Now should write relocs, strings, syms. */
4025 obj_sym_filepos (abfd
) = sym_base
;
4027 if (bfd_get_symcount (abfd
) != 0)
4031 if (!coff_renumber_symbols (abfd
, &firstundef
))
4033 coff_mangle_symbols (abfd
);
4034 if (! coff_write_symbols (abfd
))
4036 if (! coff_write_linenumbers (abfd
))
4038 if (! coff_write_relocs (abfd
, firstundef
))
4041 #ifdef COFF_LONG_SECTION_NAMES
4042 else if (long_section_names
&& ! obj_coff_strings_written (abfd
))
4044 /* If we have long section names we have to write out the string
4045 table even if there are no symbols. */
4046 if (! coff_write_symbols (abfd
))
4050 /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF
4051 backend linker, and obj_raw_syment_count is not valid until after
4052 coff_write_symbols is called. */
4053 if (obj_raw_syment_count (abfd
) != 0)
4055 internal_f
.f_symptr
= sym_base
;
4057 /* AIX appears to require that F_RELFLG not be set if there are
4058 local symbols but no relocations. */
4059 internal_f
.f_flags
&=~ F_RELFLG
;
4064 if (long_section_names
)
4065 internal_f
.f_symptr
= sym_base
;
4067 internal_f
.f_symptr
= 0;
4068 internal_f
.f_flags
|= F_LSYMS
;
4073 internal_a
.tsize
= text_sec
->size
;
4074 internal_a
.text_start
= internal_a
.tsize
? text_sec
->vma
: 0;
4078 internal_a
.dsize
= data_sec
->size
;
4079 internal_a
.data_start
= internal_a
.dsize
? data_sec
->vma
: 0;
4083 internal_a
.bsize
= bss_sec
->size
;
4084 if (internal_a
.bsize
&& bss_sec
->vma
< internal_a
.data_start
)
4085 internal_a
.data_start
= bss_sec
->vma
;
4088 internal_a
.entry
= bfd_get_start_address (abfd
);
4089 internal_f
.f_nsyms
= obj_raw_syment_count (abfd
);
4092 if (xcoff_data (abfd
)->full_aouthdr
)
4095 asection
*loader_sec
;
4097 internal_a
.vstamp
= 2;
4099 internal_a
.o_snentry
= xcoff_data (abfd
)->snentry
;
4100 if (internal_a
.o_snentry
== 0)
4101 internal_a
.entry
= (bfd_vma
) -1;
4103 if (text_sec
!= NULL
)
4105 internal_a
.o_sntext
= text_sec
->target_index
;
4106 internal_a
.o_algntext
= bfd_section_alignment (text_sec
);
4110 internal_a
.o_sntext
= 0;
4111 internal_a
.o_algntext
= 0;
4113 if (data_sec
!= NULL
)
4115 internal_a
.o_sndata
= data_sec
->target_index
;
4116 internal_a
.o_algndata
= bfd_section_alignment (data_sec
);
4120 internal_a
.o_sndata
= 0;
4121 internal_a
.o_algndata
= 0;
4123 loader_sec
= bfd_get_section_by_name (abfd
, ".loader");
4124 if (loader_sec
!= NULL
)
4125 internal_a
.o_snloader
= loader_sec
->target_index
;
4127 internal_a
.o_snloader
= 0;
4128 if (bss_sec
!= NULL
)
4129 internal_a
.o_snbss
= bss_sec
->target_index
;
4131 internal_a
.o_snbss
= 0;
4133 if (tdata_sec
!= NULL
)
4135 internal_a
.o_sntdata
= tdata_sec
->target_index
;
4136 /* TODO: o_flags should be set to RS6K_AOUTHDR_TLS_LE
4137 if there is at least one R_TLS_LE relocations. */
4138 internal_a
.o_flags
= 0;
4140 internal_a
.o_x64flags
= 0;
4145 internal_a
.o_sntdata
= 0;
4146 internal_a
.o_flags
= 0;
4148 internal_a
.o_x64flags
= 0;
4151 if (tbss_sec
!= NULL
)
4152 internal_a
.o_sntbss
= tbss_sec
->target_index
;
4154 internal_a
.o_sntbss
= 0;
4156 toc
= xcoff_data (abfd
)->toc
;
4157 internal_a
.o_toc
= toc
;
4158 internal_a
.o_sntoc
= xcoff_data (abfd
)->sntoc
;
4160 internal_a
.o_modtype
= xcoff_data (abfd
)->modtype
;
4161 if (xcoff_data (abfd
)->cputype
!= -1)
4162 internal_a
.o_cputype
= xcoff_data (abfd
)->cputype
;
4165 switch (bfd_get_arch (abfd
))
4167 case bfd_arch_rs6000
:
4168 internal_a
.o_cputype
= 4;
4170 case bfd_arch_powerpc
:
4171 if (bfd_get_mach (abfd
) == bfd_mach_ppc
)
4172 internal_a
.o_cputype
= 3;
4173 else if (bfd_get_mach (abfd
) == bfd_mach_ppc_620
)
4174 internal_a
.o_cputype
= 2;
4176 internal_a
.o_cputype
= 1;
4182 internal_a
.o_maxstack
= xcoff_data (abfd
)->maxstack
;
4183 internal_a
.o_maxdata
= xcoff_data (abfd
)->maxdata
;
4189 /* After object contents are finalized so we can compute a reasonable hash,
4190 but before header is written so we can update it to point to debug directory. */
4191 struct pe_tdata
*pe
= pe_data (abfd
);
4193 if (pe
->build_id
.after_write_object_contents
!= NULL
)
4194 (*pe
->build_id
.after_write_object_contents
) (abfd
);
4198 /* Now write header. */
4199 if (bfd_seek (abfd
, (file_ptr
) 0, SEEK_SET
) != 0)
4204 bfd_size_type amount
= bfd_coff_filhsz (abfd
);
4206 buff
= (char *) bfd_malloc (amount
);
4210 bfd_coff_swap_filehdr_out (abfd
, & internal_f
, buff
);
4211 amount
= bfd_bwrite (buff
, amount
, abfd
);
4215 if (amount
!= bfd_coff_filhsz (abfd
))
4219 if (abfd
->flags
& EXEC_P
)
4221 /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR.
4222 include/coff/pe.h sets AOUTSZ == sizeof (PEAOUTHDR)). */
4224 bfd_size_type amount
= bfd_coff_aoutsz (abfd
);
4226 buff
= (char *) bfd_malloc (amount
);
4230 coff_swap_aouthdr_out (abfd
, & internal_a
, buff
);
4231 amount
= bfd_bwrite (buff
, amount
, abfd
);
4235 if (amount
!= bfd_coff_aoutsz (abfd
))
4238 #ifdef COFF_IMAGE_WITH_PE
4239 if (! coff_apply_checksum (abfd
))
4250 /* XCOFF32 seems to always write at least a small a.out header. */
4251 coff_swap_aouthdr_out (abfd
, & internal_a
, & buff
);
4252 if (xcoff_data (abfd
)->full_aouthdr
)
4253 size
= bfd_coff_aoutsz (abfd
);
4255 size
= SMALL_AOUTSZ
;
4256 if (bfd_bwrite (& buff
, (bfd_size_type
) size
, abfd
) != size
)
4266 coff_set_section_contents (bfd
* abfd
,
4268 const void * location
,
4270 bfd_size_type count
)
4272 if (! abfd
->output_has_begun
) /* Set by bfd.c handler. */
4274 if (! coff_compute_section_file_positions (abfd
))
4278 #if defined(_LIB) && !defined(TARG_AUX)
4279 /* The physical address field of a .lib section is used to hold the
4280 number of shared libraries in the section. This code counts the
4281 number of sections being written, and increments the lma field
4284 I have found no documentation on the contents of this section.
4285 Experimentation indicates that the section contains zero or more
4286 records, each of which has the following structure:
4288 - a (four byte) word holding the length of this record, in words,
4289 - a word that always seems to be set to "2",
4290 - the path to a shared library, null-terminated and then padded
4291 to a whole word boundary.
4293 bfd_assert calls have been added to alert if an attempt is made
4294 to write a section which doesn't follow these assumptions. The
4295 code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe
4296 <robertl@arnet.com> (Thanks!).
4298 Gvran Uddeborg <gvran@uddeborg.pp.se>. */
4299 if (strcmp (section
->name
, _LIB
) == 0)
4301 bfd_byte
*rec
, *recend
;
4303 rec
= (bfd_byte
*) location
;
4304 recend
= rec
+ count
;
4305 while (rec
< recend
)
4308 rec
+= bfd_get_32 (abfd
, rec
) * 4;
4311 BFD_ASSERT (rec
== recend
);
4315 /* Don't write out bss sections - one way to do this is to
4316 see if the filepos has not been set. */
4317 if (section
->filepos
== 0)
4320 if (bfd_seek (abfd
, section
->filepos
+ offset
, SEEK_SET
) != 0)
4326 return bfd_bwrite (location
, count
, abfd
) == count
;
4330 buy_and_read (bfd
*abfd
, file_ptr where
,
4331 bfd_size_type nmemb
, bfd_size_type size
)
4335 if (_bfd_mul_overflow (nmemb
, size
, &amt
))
4337 bfd_set_error (bfd_error_file_too_big
);
4340 if (bfd_seek (abfd
, where
, SEEK_SET
) != 0)
4342 return _bfd_malloc_and_read (abfd
, amt
, amt
);
4349 Creating the linenumber table is done by reading in the entire
4350 coff linenumber table, and creating another table for internal use.
4352 A coff linenumber table is structured so that each function
4353 is marked as having a line number of 0. Each line within the
4354 function is an offset from the first line in the function. The
4355 base of the line number information for the table is stored in
4356 the symbol associated with the function.
4358 Note: The PE format uses line number 0 for a flag indicating a
4361 The information is copied from the external to the internal
4362 table, and each symbol which marks a function is marked by
4365 How does this work ?
4369 coff_sort_func_alent (const void * arg1
, const void * arg2
)
4371 const alent
*al1
= *(const alent
**) arg1
;
4372 const alent
*al2
= *(const alent
**) arg2
;
4373 const coff_symbol_type
*s1
= (const coff_symbol_type
*) (al1
->u
.sym
);
4374 const coff_symbol_type
*s2
= (const coff_symbol_type
*) (al2
->u
.sym
);
4376 if (s1
== NULL
|| s2
== NULL
)
4378 if (s1
->symbol
.value
< s2
->symbol
.value
)
4380 else if (s1
->symbol
.value
> s2
->symbol
.value
)
4387 coff_slurp_line_table (bfd
*abfd
, asection
*asect
)
4389 LINENO
*native_lineno
;
4390 alent
*lineno_cache
;
4391 unsigned int counter
;
4393 bfd_vma prev_offset
= 0;
4394 bool ordered
= true;
4395 unsigned int nbr_func
;
4401 if (asect
->lineno_count
== 0)
4404 BFD_ASSERT (asect
->lineno
== NULL
);
4406 native_lineno
= (LINENO
*) buy_and_read (abfd
, asect
->line_filepos
,
4407 asect
->lineno_count
,
4408 bfd_coff_linesz (abfd
));
4409 if (native_lineno
== NULL
)
4412 (_("%pB: warning: line number table read failed"), abfd
);
4416 if (_bfd_mul_overflow (asect
->lineno_count
+ 1, sizeof (alent
), &amt
))
4418 bfd_set_error (bfd_error_file_too_big
);
4419 free (native_lineno
);
4422 lineno_cache
= (alent
*) bfd_alloc (abfd
, amt
);
4423 if (lineno_cache
== NULL
)
4425 free (native_lineno
);
4429 cache_ptr
= lineno_cache
;
4430 asect
->lineno
= lineno_cache
;
4431 src
= native_lineno
;
4435 for (counter
= 0; counter
< asect
->lineno_count
; counter
++, src
++)
4437 struct internal_lineno dst
;
4439 bfd_coff_swap_lineno_in (abfd
, src
, &dst
);
4440 cache_ptr
->line_number
= dst
.l_lnno
;
4441 /* Appease memory checkers that get all excited about
4442 uninitialised memory when copying alents if u.offset is
4443 larger than u.sym. (64-bit BFD on 32-bit host.) */
4444 memset (&cache_ptr
->u
, 0, sizeof (cache_ptr
->u
));
4446 if (cache_ptr
->line_number
== 0)
4448 combined_entry_type
* ent
;
4449 unsigned long symndx
;
4450 coff_symbol_type
*sym
;
4453 symndx
= dst
.l_addr
.l_symndx
;
4454 if (symndx
>= obj_raw_syment_count (abfd
))
4457 /* xgettext:c-format */
4458 (_("%pB: warning: illegal symbol index 0x%lx in line number entry %d"),
4459 abfd
, symndx
, counter
);
4460 cache_ptr
->line_number
= -1;
4465 ent
= obj_raw_syments (abfd
) + symndx
;
4466 /* FIXME: We should not be casting between ints and
4467 pointers like this. */
4471 /* xgettext:c-format */
4472 (_("%pB: warning: illegal symbol index 0x%lx in line number entry %d"),
4473 abfd
, symndx
, counter
);
4474 cache_ptr
->line_number
= -1;
4478 sym
= (coff_symbol_type
*) (ent
->u
.syment
._n
._n_n
._n_zeroes
);
4480 /* PR 17512 file: 078-10659-0.004 */
4481 if (sym
< obj_symbols (abfd
)
4482 || sym
>= obj_symbols (abfd
) + bfd_get_symcount (abfd
))
4485 /* xgettext:c-format */
4486 (_("%pB: warning: illegal symbol in line number entry %d"),
4488 cache_ptr
->line_number
= -1;
4495 cache_ptr
->u
.sym
= (asymbol
*) sym
;
4496 if (sym
->lineno
!= NULL
)
4498 /* xgettext:c-format */
4499 (_("%pB: warning: duplicate line number information for `%s'"),
4500 abfd
, bfd_asymbol_name (&sym
->symbol
));
4502 sym
->lineno
= cache_ptr
;
4503 if (sym
->symbol
.value
< prev_offset
)
4505 prev_offset
= sym
->symbol
.value
;
4507 else if (!have_func
)
4508 /* Drop line information that has no associated function.
4509 PR 17521: file: 078-10659-0.004. */
4512 cache_ptr
->u
.offset
= dst
.l_addr
.l_paddr
- bfd_section_vma (asect
);
4516 asect
->lineno_count
= cache_ptr
- lineno_cache
;
4517 memset (cache_ptr
, 0, sizeof (*cache_ptr
));
4518 free (native_lineno
);
4520 /* On some systems (eg AIX5.3) the lineno table may not be sorted. */
4523 /* Sort the table. */
4525 alent
*n_lineno_cache
;
4527 /* Create a table of functions. */
4528 if (_bfd_mul_overflow (nbr_func
, sizeof (alent
*), &amt
))
4530 bfd_set_error (bfd_error_file_too_big
);
4533 else if ((func_table
= (alent
**) bfd_alloc (abfd
, amt
)) != NULL
)
4535 alent
**p
= func_table
;
4538 for (i
= 0; i
< asect
->lineno_count
; i
++)
4539 if (lineno_cache
[i
].line_number
== 0)
4540 *p
++ = &lineno_cache
[i
];
4542 BFD_ASSERT ((unsigned int) (p
- func_table
) == nbr_func
);
4544 /* Sort by functions. */
4545 qsort (func_table
, nbr_func
, sizeof (alent
*), coff_sort_func_alent
);
4547 /* Create the new sorted table. */
4548 if (_bfd_mul_overflow (asect
->lineno_count
, sizeof (alent
), &amt
))
4550 bfd_set_error (bfd_error_file_too_big
);
4553 else if ((n_lineno_cache
= (alent
*) bfd_alloc (abfd
, amt
)) != NULL
)
4555 alent
*n_cache_ptr
= n_lineno_cache
;
4557 for (i
= 0; i
< nbr_func
; i
++)
4559 coff_symbol_type
*sym
;
4560 alent
*old_ptr
= func_table
[i
];
4562 /* Update the function entry. */
4563 sym
= (coff_symbol_type
*) old_ptr
->u
.sym
;
4564 /* PR binutils/17512: Point the lineno to where
4565 this entry will be after the memcpy below. */
4566 sym
->lineno
= lineno_cache
+ (n_cache_ptr
- n_lineno_cache
);
4567 /* Copy the function and line number entries. */
4569 *n_cache_ptr
++ = *old_ptr
++;
4570 while (old_ptr
->line_number
!= 0);
4573 memcpy (lineno_cache
, n_lineno_cache
,
4574 asect
->lineno_count
* sizeof (alent
));
4578 bfd_release (abfd
, func_table
);
4587 /* Slurp in the symbol table, converting it to generic form. Note
4588 that if coff_relocate_section is defined, the linker will read
4589 symbols via coff_link_add_symbols, rather than via this routine. */
4592 coff_slurp_symbol_table (bfd
* abfd
)
4594 combined_entry_type
*native_symbols
;
4595 coff_symbol_type
*cached_area
;
4596 unsigned int *table_ptr
;
4597 unsigned int number_of_symbols
= 0;
4601 if (obj_symbols (abfd
))
4604 /* Read in the symbol table. */
4605 if ((native_symbols
= coff_get_normalized_symtab (abfd
)) == NULL
)
4608 /* Allocate enough room for all the symbols in cached form. */
4609 if (_bfd_mul_overflow (obj_raw_syment_count (abfd
),
4610 sizeof (*cached_area
), &amt
))
4612 bfd_set_error (bfd_error_file_too_big
);
4615 cached_area
= (coff_symbol_type
*) bfd_alloc (abfd
, amt
);
4616 if (cached_area
== NULL
)
4619 if (_bfd_mul_overflow (obj_raw_syment_count (abfd
),
4620 sizeof (*table_ptr
), &amt
))
4622 bfd_set_error (bfd_error_file_too_big
);
4625 table_ptr
= (unsigned int *) bfd_zalloc (abfd
, amt
);
4626 if (table_ptr
== NULL
)
4630 coff_symbol_type
*dst
= cached_area
;
4631 unsigned int last_native_index
= obj_raw_syment_count (abfd
);
4632 unsigned int this_index
= 0;
4634 while (this_index
< last_native_index
)
4636 combined_entry_type
*src
= native_symbols
+ this_index
;
4637 table_ptr
[this_index
] = number_of_symbols
;
4639 dst
->symbol
.the_bfd
= abfd
;
4640 BFD_ASSERT (src
->is_sym
);
4641 dst
->symbol
.name
= (char *) (src
->u
.syment
._n
._n_n
._n_offset
);
4642 /* We use the native name field to point to the cached field. */
4643 src
->u
.syment
._n
._n_n
._n_zeroes
= (uintptr_t) dst
;
4644 dst
->symbol
.section
= coff_section_from_bfd_index (abfd
,
4645 src
->u
.syment
.n_scnum
);
4646 dst
->symbol
.flags
= 0;
4647 /* PR 17512: file: 079-7098-0.001:0.1. */
4648 dst
->symbol
.value
= 0;
4649 dst
->done_lineno
= false;
4651 switch (src
->u
.syment
.n_sclass
)
4657 case C_THUMBEXTFUNC
:
4661 #if ! defined _AIX52 && ! defined AIX_WEAK_SUPPORT
4666 case C_SYSTEM
: /* System Wide variable. */
4669 /* In PE, 0x68 (104) denotes a section symbol. */
4671 /* In PE, 0x69 (105) denotes a weak external symbol. */
4674 switch (coff_classify_symbol (abfd
, &src
->u
.syment
))
4676 case COFF_SYMBOL_GLOBAL
:
4677 dst
->symbol
.flags
= BSF_EXPORT
| BSF_GLOBAL
;
4678 #if defined COFF_WITH_PE
4679 /* PE sets the symbol to a value relative to the
4680 start of the section. */
4681 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4683 dst
->symbol
.value
= (src
->u
.syment
.n_value
4684 - dst
->symbol
.section
->vma
);
4686 if (ISFCN ((src
->u
.syment
.n_type
)))
4687 /* A function ext does not go at the end of a
4689 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
4692 case COFF_SYMBOL_COMMON
:
4693 dst
->symbol
.section
= bfd_com_section_ptr
;
4694 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4697 case COFF_SYMBOL_UNDEFINED
:
4698 dst
->symbol
.section
= bfd_und_section_ptr
;
4699 dst
->symbol
.value
= 0;
4702 case COFF_SYMBOL_PE_SECTION
:
4703 dst
->symbol
.flags
|= BSF_EXPORT
| BSF_SECTION_SYM
;
4704 dst
->symbol
.value
= 0;
4707 case COFF_SYMBOL_LOCAL
:
4708 dst
->symbol
.flags
= BSF_LOCAL
;
4709 #if defined COFF_WITH_PE
4710 /* PE sets the symbol to a value relative to the
4711 start of the section. */
4712 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4714 dst
->symbol
.value
= (src
->u
.syment
.n_value
4715 - dst
->symbol
.section
->vma
);
4717 if (ISFCN ((src
->u
.syment
.n_type
)))
4718 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
4723 /* A symbol with a csect entry should not go at the end. */
4724 if (src
->u
.syment
.n_numaux
> 0)
4725 dst
->symbol
.flags
|= BSF_NOT_AT_END
;
4729 if (src
->u
.syment
.n_sclass
== C_NT_WEAK
)
4730 dst
->symbol
.flags
|= BSF_WEAK
;
4732 if (src
->u
.syment
.n_sclass
== C_SECTION
4733 && src
->u
.syment
.n_scnum
> 0)
4734 dst
->symbol
.flags
= BSF_LOCAL
;
4736 if (src
->u
.syment
.n_sclass
== C_WEAKEXT
4738 || src
->u
.syment
.n_sclass
== C_AIX_WEAKEXT
4741 dst
->symbol
.flags
|= BSF_WEAK
;
4745 case C_STAT
: /* Static. */
4747 case C_THUMBSTAT
: /* Thumb static. */
4748 case C_THUMBLABEL
: /* Thumb label. */
4749 case C_THUMBSTATFUNC
:/* Thumb static function. */
4752 case C_DWARF
: /* A label in a dwarf section. */
4753 case C_INFO
: /* A label in a comment section. */
4755 case C_LABEL
: /* Label. */
4756 if (src
->u
.syment
.n_scnum
== N_DEBUG
)
4757 dst
->symbol
.flags
= BSF_DEBUGGING
;
4759 dst
->symbol
.flags
= BSF_LOCAL
;
4761 /* Base the value as an index from the base of the
4762 section, if there is one. */
4763 if (dst
->symbol
.section
)
4765 #if defined COFF_WITH_PE
4766 /* PE sets the symbol to a value relative to the
4767 start of the section. */
4768 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4770 dst
->symbol
.value
= (src
->u
.syment
.n_value
4771 - dst
->symbol
.section
->vma
);
4775 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4778 case C_FILE
: /* File name. */
4779 dst
->symbol
.flags
= BSF_FILE
;
4781 case C_MOS
: /* Member of structure. */
4782 case C_EOS
: /* End of structure. */
4783 case C_REGPARM
: /* Register parameter. */
4784 case C_REG
: /* register variable. */
4785 /* C_AUTOARG conflicts with TI COFF C_UEXT. */
4786 case C_TPDEF
: /* Type definition. */
4788 case C_AUTO
: /* Automatic variable. */
4789 case C_FIELD
: /* Bit field. */
4790 case C_ENTAG
: /* Enumeration tag. */
4791 case C_MOE
: /* Member of enumeration. */
4792 case C_MOU
: /* Member of union. */
4793 case C_UNTAG
: /* Union tag. */
4794 case C_STRTAG
: /* Structure tag. */
4811 dst
->symbol
.flags
|= BSF_DEBUGGING
;
4812 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4816 case C_BINCL
: /* Beginning of include file. */
4817 case C_EINCL
: /* Ending of include file. */
4818 /* The value is actually a pointer into the line numbers
4819 of the file. We locate the line number entry, and
4820 set the section to the section which contains it, and
4821 the value to the index in that section. */
4825 dst
->symbol
.flags
= BSF_DEBUGGING
;
4826 for (sec
= abfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
4827 if (sec
->line_filepos
<= (file_ptr
) src
->u
.syment
.n_value
4828 && ((file_ptr
) (sec
->line_filepos
4829 + sec
->lineno_count
* bfd_coff_linesz (abfd
))
4830 > (file_ptr
) src
->u
.syment
.n_value
))
4833 dst
->symbol
.value
= 0;
4836 dst
->symbol
.section
= sec
;
4837 dst
->symbol
.value
= ((src
->u
.syment
.n_value
4838 - sec
->line_filepos
)
4839 / bfd_coff_linesz (abfd
));
4846 dst
->symbol
.flags
= BSF_DEBUGGING
;
4848 /* The value is actually a symbol index. Save a pointer
4849 to the symbol instead of the index. FIXME: This
4850 should use a union. */
4851 src
->u
.syment
.n_value
4852 = (uintptr_t) (native_symbols
+ src
->u
.syment
.n_value
);
4853 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4858 case C_BLOCK
: /* ".bb" or ".eb". */
4859 case C_FCN
: /* ".bf" or ".ef" (or PE ".lf"). */
4860 case C_EFCN
: /* Physical end of function. */
4861 #if defined COFF_WITH_PE
4862 /* PE sets the symbol to a value relative to the start
4864 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4865 if (strcmp (dst
->symbol
.name
, ".bf") != 0)
4867 /* PE uses funny values for .ef and .lf; don't
4869 dst
->symbol
.flags
= BSF_DEBUGGING
;
4872 dst
->symbol
.flags
= BSF_DEBUGGING
| BSF_DEBUGGING_RELOC
;
4874 /* Base the value as an index from the base of the
4876 dst
->symbol
.flags
= BSF_LOCAL
;
4877 dst
->symbol
.value
= (src
->u
.syment
.n_value
4878 - dst
->symbol
.section
->vma
);
4882 case C_STATLAB
: /* Static load time label. */
4883 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4884 dst
->symbol
.flags
= BSF_GLOBAL
;
4888 /* PE DLLs sometimes have zeroed out symbols for some
4889 reason. Just ignore them without a warning. */
4890 if (src
->u
.syment
.n_type
== 0
4891 && src
->u
.syment
.n_value
== 0
4892 && src
->u
.syment
.n_scnum
== 0)
4895 /* XCOFF specific: deleted entry. */
4896 if (src
->u
.syment
.n_value
== C_NULL_VALUE
)
4900 case C_EXTDEF
: /* External definition. */
4901 case C_ULABEL
: /* Undefined label. */
4902 case C_USTATIC
: /* Undefined static. */
4903 #ifndef COFF_WITH_PE
4904 /* C_LINE in regular coff is 0x68. NT has taken over this storage
4905 class to represent a section symbol. */
4906 case C_LINE
: /* line # reformatted as symbol table entry. */
4907 /* NT uses 0x67 for a weak symbol, not C_ALIAS. */
4908 case C_ALIAS
: /* Duplicate tag. */
4910 /* New storage classes for TI COFF. */
4912 case C_UEXT
: /* Tentative external definition. */
4914 case C_EXTLAB
: /* External load time label. */
4917 /* xgettext:c-format */
4918 (_("%pB: unrecognized storage class %d for %s symbol `%s'"),
4919 abfd
, src
->u
.syment
.n_sclass
,
4920 dst
->symbol
.section
->name
, dst
->symbol
.name
);
4923 case C_HIDDEN
: /* Ext symbol in dmert public lib. */
4924 /* PR 20722: These symbols can also be generated by
4925 building DLLs with --gc-sections enabled. */
4926 dst
->symbol
.flags
= BSF_DEBUGGING
;
4927 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4932 dst
->symbol
.udata
.i
= 0;
4935 this_index
+= (src
->u
.syment
.n_numaux
) + 1;
4937 number_of_symbols
++;
4941 obj_symbols (abfd
) = cached_area
;
4942 obj_raw_syments (abfd
) = native_symbols
;
4944 abfd
->symcount
= number_of_symbols
;
4945 obj_convert (abfd
) = table_ptr
;
4946 /* Slurp the line tables for each section too. */
4953 if (! coff_slurp_line_table (abfd
, p
))
4962 /* Classify a COFF symbol. A couple of targets have globally visible
4963 symbols which are not class C_EXT, and this handles those. It also
4964 recognizes some special PE cases. */
4966 static enum coff_symbol_classification
4967 coff_classify_symbol (bfd
*abfd
,
4968 struct internal_syment
*syment
)
4970 /* FIXME: This partially duplicates the switch in
4971 coff_slurp_symbol_table. */
4972 switch (syment
->n_sclass
)
4978 case C_THUMBEXTFUNC
:
4982 #if ! defined _AIX52 && ! defined AIX_WEAK_SUPPORT
4992 if (syment
->n_scnum
== 0)
4994 if (syment
->n_value
== 0)
4995 return COFF_SYMBOL_UNDEFINED
;
4997 return COFF_SYMBOL_COMMON
;
5000 if (syment
->n_sclass
== C_HIDEXT
)
5001 return COFF_SYMBOL_LOCAL
;
5003 return COFF_SYMBOL_GLOBAL
;
5010 if (syment
->n_sclass
== C_STAT
)
5012 if (syment
->n_scnum
== 0)
5013 /* The Microsoft compiler sometimes generates these if a
5014 small static function is inlined every time it is used.
5015 The function is discarded, but the symbol table entry
5017 return COFF_SYMBOL_LOCAL
;
5019 #ifdef STRICT_PE_FORMAT
5020 /* This is correct for Microsoft generated objects, but it
5021 breaks gas generated objects. */
5022 if (syment
->n_value
== 0)
5026 char buf
[SYMNMLEN
+ 1];
5028 name
= _bfd_coff_internal_syment_name (abfd
, syment
, buf
)
5029 sec
= coff_section_from_bfd_index (abfd
, syment
->n_scnum
);
5030 if (sec
!= NULL
&& name
!= NULL
5031 && (strcmp (bfd_section_name (sec
), name
) == 0))
5032 return COFF_SYMBOL_PE_SECTION
;
5036 return COFF_SYMBOL_LOCAL
;
5039 if (syment
->n_sclass
== C_SECTION
)
5041 /* In some cases in a DLL generated by the Microsoft linker, the
5042 n_value field will contain garbage. FIXME: This should
5043 probably be handled by the swapping function instead. */
5044 syment
->n_value
= 0;
5045 if (syment
->n_scnum
== 0)
5046 return COFF_SYMBOL_UNDEFINED
;
5047 return COFF_SYMBOL_PE_SECTION
;
5049 #endif /* COFF_WITH_PE */
5051 /* If it is not a global symbol, we presume it is a local symbol. */
5052 if (syment
->n_scnum
== 0)
5054 char buf
[SYMNMLEN
+ 1];
5057 /* xgettext:c-format */
5058 (_("warning: %pB: local symbol `%s' has no section"),
5059 abfd
, _bfd_coff_internal_syment_name (abfd
, syment
, buf
));
5062 return COFF_SYMBOL_LOCAL
;
5069 Coff relocations are easily transformed into the internal BFD form
5072 Reading a coff relocation table is done in the following stages:
5074 o Read the entire coff relocation table into memory.
5076 o Process each relocation in turn; first swap it from the
5077 external to the internal form.
5079 o Turn the symbol referenced in the relocation's symbol index
5080 into a pointer into the canonical symbol table.
5081 This table is the same as the one returned by a call to
5082 @code{bfd_canonicalize_symtab}. The back end will call that
5083 routine and save the result if a canonicalization hasn't been done.
5085 o The reloc index is turned into a pointer to a howto
5086 structure, in a back end specific way. For instance, the 386
5087 uses the @code{r_type} to directly produce an index
5088 into a howto table vector.
5092 #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
5094 coff_symbol_type *coffsym = NULL; \
5096 if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
5097 coffsym = (obj_symbols (abfd) \
5098 + (cache_ptr->sym_ptr_ptr - symbols)); \
5100 coffsym = coff_symbol_from (ptr); \
5101 if (coffsym != NULL \
5102 && coffsym->native->is_sym \
5103 && coffsym->native->u.syment.n_scnum == 0) \
5104 cache_ptr->addend = 0; \
5105 else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
5106 && ptr->section != NULL) \
5107 cache_ptr->addend = - (ptr->section->vma + ptr->value); \
5109 cache_ptr->addend = 0; \
5114 coff_slurp_reloc_table (bfd
* abfd
, sec_ptr asect
, asymbol
** symbols
)
5116 bfd_byte
*native_relocs
;
5117 arelent
*reloc_cache
;
5122 if (asect
->relocation
)
5124 if (asect
->reloc_count
== 0)
5126 if (asect
->flags
& SEC_CONSTRUCTOR
)
5128 if (!coff_slurp_symbol_table (abfd
))
5131 native_relocs
= (bfd_byte
*) buy_and_read (abfd
, asect
->rel_filepos
,
5133 bfd_coff_relsz (abfd
));
5134 if (native_relocs
== NULL
)
5137 if (_bfd_mul_overflow (asect
->reloc_count
, sizeof (arelent
), &amt
))
5139 bfd_set_error (bfd_error_file_too_big
);
5142 reloc_cache
= (arelent
*) bfd_alloc (abfd
, amt
);
5143 if (reloc_cache
== NULL
)
5145 free (native_relocs
);
5149 for (idx
= 0; idx
< asect
->reloc_count
; idx
++)
5151 struct internal_reloc dst
;
5153 #ifndef RELOC_PROCESSING
5157 cache_ptr
= reloc_cache
+ idx
;
5158 src
= native_relocs
+ idx
* (size_t) bfd_coff_relsz (abfd
);
5161 bfd_coff_swap_reloc_in (abfd
, src
, &dst
);
5163 #ifdef RELOC_PROCESSING
5164 RELOC_PROCESSING (cache_ptr
, &dst
, symbols
, abfd
, asect
);
5166 cache_ptr
->address
= dst
.r_vaddr
;
5168 if (dst
.r_symndx
!= -1 && symbols
!= NULL
)
5170 if (dst
.r_symndx
< 0 || dst
.r_symndx
>= obj_conv_table_size (abfd
))
5173 /* xgettext:c-format */
5174 (_("%pB: warning: illegal symbol index %ld in relocs"),
5175 abfd
, dst
.r_symndx
);
5176 cache_ptr
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
5181 cache_ptr
->sym_ptr_ptr
= (symbols
5182 + obj_convert (abfd
)[dst
.r_symndx
]);
5183 ptr
= *(cache_ptr
->sym_ptr_ptr
);
5188 cache_ptr
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
5192 /* The symbols definitions that we have read in have been
5193 relocated as if their sections started at 0. But the offsets
5194 refering to the symbols in the raw data have not been
5195 modified, so we have to have a negative addend to compensate.
5197 Note that symbols which used to be common must be left alone. */
5199 /* Calculate any reloc addend by looking at the symbol. */
5200 CALC_ADDEND (abfd
, ptr
, dst
, cache_ptr
);
5203 cache_ptr
->address
-= asect
->vma
;
5204 /* !! cache_ptr->section = NULL;*/
5206 /* Fill in the cache_ptr->howto field from dst.r_type. */
5207 RTYPE2HOWTO (cache_ptr
, &dst
);
5208 #endif /* RELOC_PROCESSING */
5210 if (cache_ptr
->howto
== NULL
)
5213 /* xgettext:c-format */
5214 (_("%pB: illegal relocation type %d at address %#" PRIx64
),
5215 abfd
, dst
.r_type
, (uint64_t) dst
.r_vaddr
);
5216 bfd_set_error (bfd_error_bad_value
);
5217 free (native_relocs
);
5222 free (native_relocs
);
5223 asect
->relocation
= reloc_cache
;
5227 #ifndef coff_rtype_to_howto
5230 /* Get the howto structure for a reloc. This is only used if the file
5231 including this one defines coff_relocate_section to be
5232 _bfd_coff_generic_relocate_section, so it is OK if it does not
5233 always work. It is the responsibility of the including file to
5234 make sure it is reasonable if it is needed. */
5236 static reloc_howto_type
*
5237 coff_rtype_to_howto (bfd
*abfd ATTRIBUTE_UNUSED
,
5238 asection
*sec ATTRIBUTE_UNUSED
,
5239 struct internal_reloc
*rel ATTRIBUTE_UNUSED
,
5240 struct coff_link_hash_entry
*h ATTRIBUTE_UNUSED
,
5241 struct internal_syment
*sym ATTRIBUTE_UNUSED
,
5242 bfd_vma
*addendp ATTRIBUTE_UNUSED
)
5246 genrel
.howto
= NULL
;
5247 RTYPE2HOWTO (&genrel
, rel
);
5248 return genrel
.howto
;
5251 #else /* ! defined (RTYPE2HOWTO) */
5253 #define coff_rtype_to_howto NULL
5255 #endif /* ! defined (RTYPE2HOWTO) */
5256 #endif /* ! defined (coff_rtype_to_howto) */
5258 /* This is stupid. This function should be a boolean predicate. */
5261 coff_canonicalize_reloc (bfd
* abfd
,
5266 arelent
*tblptr
= section
->relocation
;
5267 unsigned int count
= 0;
5269 if (section
->flags
& SEC_CONSTRUCTOR
)
5271 /* This section has relocs made up by us, they are not in the
5272 file, so take them out of their chain and place them into
5273 the data area provided. */
5274 arelent_chain
*chain
= section
->constructor_chain
;
5276 for (count
= 0; count
< section
->reloc_count
; count
++)
5278 *relptr
++ = &chain
->relent
;
5279 chain
= chain
->next
;
5284 if (! coff_slurp_reloc_table (abfd
, section
, symbols
))
5287 tblptr
= section
->relocation
;
5289 for (; count
++ < section
->reloc_count
;)
5290 *relptr
++ = tblptr
++;
5293 return section
->reloc_count
;
5296 #ifndef coff_set_reloc
5297 #define coff_set_reloc _bfd_generic_set_reloc
5300 #ifndef coff_reloc16_estimate
5301 #define coff_reloc16_estimate dummy_reloc16_estimate
5304 dummy_reloc16_estimate (bfd
*abfd ATTRIBUTE_UNUSED
,
5305 asection
*input_section ATTRIBUTE_UNUSED
,
5306 arelent
*reloc ATTRIBUTE_UNUSED
,
5307 unsigned int shrink ATTRIBUTE_UNUSED
,
5308 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
)
5316 #ifndef coff_reloc16_extra_cases
5318 #define coff_reloc16_extra_cases dummy_reloc16_extra_cases
5320 /* This works even if abort is not declared in any header file. */
5323 dummy_reloc16_extra_cases (bfd
*abfd ATTRIBUTE_UNUSED
,
5324 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
,
5325 struct bfd_link_order
*link_order ATTRIBUTE_UNUSED
,
5326 arelent
*reloc ATTRIBUTE_UNUSED
,
5327 bfd_byte
*data ATTRIBUTE_UNUSED
,
5328 unsigned int *src_ptr ATTRIBUTE_UNUSED
,
5329 unsigned int *dst_ptr ATTRIBUTE_UNUSED
)
5335 /* If coff_relocate_section is defined, we can use the optimized COFF
5336 backend linker. Otherwise we must continue to use the old linker. */
5338 #ifdef coff_relocate_section
5340 #ifndef coff_bfd_link_hash_table_create
5341 #define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create
5343 #ifndef coff_bfd_link_add_symbols
5344 #define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols
5346 #ifndef coff_bfd_final_link
5347 #define coff_bfd_final_link _bfd_coff_final_link
5350 #else /* ! defined (coff_relocate_section) */
5352 #define coff_relocate_section NULL
5353 #ifndef coff_bfd_link_hash_table_create
5354 #define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
5356 #ifndef coff_bfd_link_add_symbols
5357 #define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols
5359 #define coff_bfd_final_link _bfd_generic_final_link
5361 #endif /* ! defined (coff_relocate_section) */
5363 #define coff_bfd_link_just_syms _bfd_generic_link_just_syms
5364 #define coff_bfd_copy_link_hash_symbol_type \
5365 _bfd_generic_copy_link_hash_symbol_type
5366 #define coff_bfd_link_split_section _bfd_generic_link_split_section
5368 #define coff_bfd_link_check_relocs _bfd_generic_link_check_relocs
5370 #ifndef coff_start_final_link
5371 #define coff_start_final_link NULL
5374 #ifndef coff_adjust_symndx
5375 #define coff_adjust_symndx NULL
5378 #ifndef coff_link_add_one_symbol
5379 #define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol
5382 #ifndef coff_link_output_has_begun
5385 coff_link_output_has_begun (bfd
* abfd
,
5386 struct coff_final_link_info
* info ATTRIBUTE_UNUSED
)
5388 return abfd
->output_has_begun
;
5392 #ifndef coff_final_link_postscript
5395 coff_final_link_postscript (bfd
* abfd ATTRIBUTE_UNUSED
,
5396 struct coff_final_link_info
* pfinfo ATTRIBUTE_UNUSED
)
5402 #ifndef coff_SWAP_aux_in
5403 #define coff_SWAP_aux_in coff_swap_aux_in
5405 #ifndef coff_SWAP_sym_in
5406 #define coff_SWAP_sym_in coff_swap_sym_in
5408 #ifndef coff_SWAP_lineno_in
5409 #define coff_SWAP_lineno_in coff_swap_lineno_in
5411 #ifndef coff_SWAP_aux_out
5412 #define coff_SWAP_aux_out coff_swap_aux_out
5414 #ifndef coff_SWAP_sym_out
5415 #define coff_SWAP_sym_out coff_swap_sym_out
5417 #ifndef coff_SWAP_lineno_out
5418 #define coff_SWAP_lineno_out coff_swap_lineno_out
5420 #ifndef coff_SWAP_reloc_out
5421 #define coff_SWAP_reloc_out coff_swap_reloc_out
5423 #ifndef coff_SWAP_filehdr_out
5424 #define coff_SWAP_filehdr_out coff_swap_filehdr_out
5426 #ifndef coff_SWAP_aouthdr_out
5427 #define coff_SWAP_aouthdr_out coff_swap_aouthdr_out
5429 #ifndef coff_SWAP_scnhdr_out
5430 #define coff_SWAP_scnhdr_out coff_swap_scnhdr_out
5432 #ifndef coff_SWAP_reloc_in
5433 #define coff_SWAP_reloc_in coff_swap_reloc_in
5435 #ifndef coff_SWAP_filehdr_in
5436 #define coff_SWAP_filehdr_in coff_swap_filehdr_in
5438 #ifndef coff_SWAP_aouthdr_in
5439 #define coff_SWAP_aouthdr_in coff_swap_aouthdr_in
5441 #ifndef coff_SWAP_scnhdr_in
5442 #define coff_SWAP_scnhdr_in coff_swap_scnhdr_in
5445 static bfd_coff_backend_data bfd_coff_std_swap_table ATTRIBUTE_UNUSED
=
5447 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
5448 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
5449 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5450 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
5451 coff_SWAP_scnhdr_out
,
5452 FILHSZ
, AOUTSZ
, SCNHSZ
, SYMESZ
, AUXESZ
, RELSZ
, LINESZ
, FILNMLEN
,
5453 #ifdef COFF_LONG_FILENAMES
5458 COFF_DEFAULT_LONG_SECTION_NAMES
,
5459 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5460 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5465 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5471 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5472 coff_SWAP_reloc_in
, coff_bad_format_hook
, coff_set_arch_mach_hook
,
5473 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5474 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5475 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5476 coff_classify_symbol
, coff_compute_section_file_positions
,
5477 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5478 coff_adjust_symndx
, coff_link_add_one_symbol
,
5479 coff_link_output_has_begun
, coff_final_link_postscript
,
5484 /* COFF0 differs in file/section header size and relocation entry size. */
5486 static bfd_coff_backend_data ticoff0_swap_table
=
5488 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
5489 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
5490 coff_SWAP_lineno_out
, coff_swap_reloc_v0_out
,
5491 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
5492 coff_SWAP_scnhdr_out
,
5493 FILHSZ_V0
, AOUTSZ
, SCNHSZ_V01
, SYMESZ
, AUXESZ
, RELSZ_V0
, LINESZ
, FILNMLEN
,
5494 #ifdef COFF_LONG_FILENAMES
5499 COFF_DEFAULT_LONG_SECTION_NAMES
,
5500 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5501 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5506 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5512 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5513 coff_swap_reloc_v0_in
, ticoff0_bad_format_hook
, coff_set_arch_mach_hook
,
5514 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5515 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5516 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5517 coff_classify_symbol
, coff_compute_section_file_positions
,
5518 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5519 coff_adjust_symndx
, coff_link_add_one_symbol
,
5520 coff_link_output_has_begun
, coff_final_link_postscript
,
5526 /* COFF1 differs in section header size. */
5528 static bfd_coff_backend_data ticoff1_swap_table
=
5530 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
5531 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
5532 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5533 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
5534 coff_SWAP_scnhdr_out
,
5535 FILHSZ
, AOUTSZ
, SCNHSZ_V01
, SYMESZ
, AUXESZ
, RELSZ
, LINESZ
, FILNMLEN
,
5536 #ifdef COFF_LONG_FILENAMES
5541 COFF_DEFAULT_LONG_SECTION_NAMES
,
5542 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5543 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5548 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5554 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5555 coff_SWAP_reloc_in
, ticoff1_bad_format_hook
, coff_set_arch_mach_hook
,
5556 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5557 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5558 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5559 coff_classify_symbol
, coff_compute_section_file_positions
,
5560 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5561 coff_adjust_symndx
, coff_link_add_one_symbol
,
5562 coff_link_output_has_begun
, coff_final_link_postscript
,
5563 bfd_pe_print_pdata
/* huh */
5567 #ifdef COFF_WITH_PE_BIGOBJ
5568 /* The UID for bigobj files. */
5570 static const char header_bigobj_classid
[16] =
5572 0xC7, 0xA1, 0xBA, 0xD1,
5576 0xFA, 0xF6, 0x6A, 0xA4, 0xDC, 0xB8
5579 /* Swap routines. */
5582 coff_bigobj_swap_filehdr_in (bfd
* abfd
, void * src
, void * dst
)
5584 struct external_ANON_OBJECT_HEADER_BIGOBJ
*filehdr_src
=
5585 (struct external_ANON_OBJECT_HEADER_BIGOBJ
*) src
;
5586 struct internal_filehdr
*filehdr_dst
= (struct internal_filehdr
*) dst
;
5588 filehdr_dst
->f_magic
= H_GET_16 (abfd
, filehdr_src
->Machine
);
5589 filehdr_dst
->f_nscns
= H_GET_32 (abfd
, filehdr_src
->NumberOfSections
);
5590 filehdr_dst
->f_timdat
= H_GET_32 (abfd
, filehdr_src
->TimeDateStamp
);
5591 filehdr_dst
->f_symptr
=
5592 GET_FILEHDR_SYMPTR (abfd
, filehdr_src
->PointerToSymbolTable
);
5593 filehdr_dst
->f_nsyms
= H_GET_32 (abfd
, filehdr_src
->NumberOfSymbols
);
5594 filehdr_dst
->f_opthdr
= 0;
5595 filehdr_dst
->f_flags
= 0;
5597 /* Check other magic numbers. */
5598 if (H_GET_16 (abfd
, filehdr_src
->Sig1
) != IMAGE_FILE_MACHINE_UNKNOWN
5599 || H_GET_16 (abfd
, filehdr_src
->Sig2
) != 0xffff
5600 || H_GET_16 (abfd
, filehdr_src
->Version
) != 2
5601 || memcmp (filehdr_src
->ClassID
, header_bigobj_classid
, 16) != 0)
5602 filehdr_dst
->f_opthdr
= 0xffff;
5604 /* Note that CLR metadata are ignored. */
5608 coff_bigobj_swap_filehdr_out (bfd
*abfd
, void * in
, void * out
)
5610 struct internal_filehdr
*filehdr_in
= (struct internal_filehdr
*) in
;
5611 struct external_ANON_OBJECT_HEADER_BIGOBJ
*filehdr_out
=
5612 (struct external_ANON_OBJECT_HEADER_BIGOBJ
*) out
;
5614 memset (filehdr_out
, 0, sizeof (*filehdr_out
));
5616 H_PUT_16 (abfd
, IMAGE_FILE_MACHINE_UNKNOWN
, filehdr_out
->Sig1
);
5617 H_PUT_16 (abfd
, 0xffff, filehdr_out
->Sig2
);
5618 H_PUT_16 (abfd
, 2, filehdr_out
->Version
);
5619 memcpy (filehdr_out
->ClassID
, header_bigobj_classid
, 16);
5620 H_PUT_16 (abfd
, filehdr_in
->f_magic
, filehdr_out
->Machine
);
5621 H_PUT_32 (abfd
, filehdr_in
->f_nscns
, filehdr_out
->NumberOfSections
);
5622 H_PUT_32 (abfd
, filehdr_in
->f_timdat
, filehdr_out
->TimeDateStamp
);
5623 PUT_FILEHDR_SYMPTR (abfd
, filehdr_in
->f_symptr
,
5624 filehdr_out
->PointerToSymbolTable
);
5625 H_PUT_32 (abfd
, filehdr_in
->f_nsyms
, filehdr_out
->NumberOfSymbols
);
5627 return bfd_coff_filhsz (abfd
);
5631 coff_bigobj_swap_sym_in (bfd
* abfd
, void * ext1
, void * in1
)
5633 SYMENT_BIGOBJ
*ext
= (SYMENT_BIGOBJ
*) ext1
;
5634 struct internal_syment
*in
= (struct internal_syment
*) in1
;
5636 if (ext
->e
.e_name
[0] == 0)
5638 in
->_n
._n_n
._n_zeroes
= 0;
5639 in
->_n
._n_n
._n_offset
= H_GET_32 (abfd
, ext
->e
.e
.e_offset
);
5643 #if SYMNMLEN != E_SYMNMLEN
5644 #error we need to cope with truncating or extending SYMNMLEN
5646 memcpy (in
->_n
._n_name
, ext
->e
.e_name
, SYMNMLEN
);
5650 in
->n_value
= H_GET_32 (abfd
, ext
->e_value
);
5651 BFD_ASSERT (sizeof (in
->n_scnum
) >= 4);
5652 in
->n_scnum
= H_GET_32 (abfd
, ext
->e_scnum
);
5653 in
->n_type
= H_GET_16 (abfd
, ext
->e_type
);
5654 in
->n_sclass
= H_GET_8 (abfd
, ext
->e_sclass
);
5655 in
->n_numaux
= H_GET_8 (abfd
, ext
->e_numaux
);
5659 coff_bigobj_swap_sym_out (bfd
* abfd
, void * inp
, void * extp
)
5661 struct internal_syment
*in
= (struct internal_syment
*) inp
;
5662 SYMENT_BIGOBJ
*ext
= (SYMENT_BIGOBJ
*) extp
;
5664 if (in
->_n
._n_name
[0] == 0)
5666 H_PUT_32 (abfd
, 0, ext
->e
.e
.e_zeroes
);
5667 H_PUT_32 (abfd
, in
->_n
._n_n
._n_offset
, ext
->e
.e
.e_offset
);
5671 #if SYMNMLEN != E_SYMNMLEN
5672 #error we need to cope with truncating or extending SYMNMLEN
5674 memcpy (ext
->e
.e_name
, in
->_n
._n_name
, SYMNMLEN
);
5678 H_PUT_32 (abfd
, in
->n_value
, ext
->e_value
);
5679 H_PUT_32 (abfd
, in
->n_scnum
, ext
->e_scnum
);
5681 H_PUT_16 (abfd
, in
->n_type
, ext
->e_type
);
5682 H_PUT_8 (abfd
, in
->n_sclass
, ext
->e_sclass
);
5683 H_PUT_8 (abfd
, in
->n_numaux
, ext
->e_numaux
);
5685 return SYMESZ_BIGOBJ
;
5689 coff_bigobj_swap_aux_in (bfd
*abfd
,
5697 AUXENT_BIGOBJ
*ext
= (AUXENT_BIGOBJ
*) ext1
;
5698 union internal_auxent
*in
= (union internal_auxent
*) in1
;
5700 /* Make sure that all fields in the aux structure are
5702 memset (in
, 0, sizeof * in
);
5709 memcpy (in
->x_file
.x_n
.x_fname
, ext
->File
.Name
,
5710 numaux
* sizeof (AUXENT_BIGOBJ
));
5713 memcpy (in
->x_file
.x_n
.x_fname
, ext
->File
.Name
, sizeof (ext
->File
.Name
));
5721 in
->x_scn
.x_scnlen
= H_GET_32 (abfd
, ext
->Section
.Length
);
5722 in
->x_scn
.x_nreloc
=
5723 H_GET_16 (abfd
, ext
->Section
.NumberOfRelocations
);
5724 in
->x_scn
.x_nlinno
=
5725 H_GET_16 (abfd
, ext
->Section
.NumberOfLinenumbers
);
5726 in
->x_scn
.x_checksum
= H_GET_32 (abfd
, ext
->Section
.Checksum
);
5727 in
->x_scn
.x_associated
= H_GET_16 (abfd
, ext
->Section
.Number
)
5728 | (H_GET_16 (abfd
, ext
->Section
.HighNumber
) << 16);
5729 in
->x_scn
.x_comdat
= H_GET_8 (abfd
, ext
->Section
.Selection
);
5735 in
->x_sym
.x_tagndx
.l
= H_GET_32 (abfd
, ext
->Sym
.WeakDefaultSymIndex
);
5736 /* Characteristics is ignored. */
5742 coff_bigobj_swap_aux_out (bfd
* abfd
,
5746 int indx ATTRIBUTE_UNUSED
,
5747 int numaux ATTRIBUTE_UNUSED
,
5750 union internal_auxent
* in
= (union internal_auxent
*) inp
;
5751 AUXENT_BIGOBJ
*ext
= (AUXENT_BIGOBJ
*) extp
;
5753 memset (ext
, 0, AUXESZ
);
5758 memcpy (ext
->File
.Name
, in
->x_file
.x_n
.x_fname
, sizeof (ext
->File
.Name
));
5767 H_PUT_32 (abfd
, in
->x_scn
.x_scnlen
, ext
->Section
.Length
);
5768 H_PUT_16 (abfd
, in
->x_scn
.x_nreloc
,
5769 ext
->Section
.NumberOfRelocations
);
5770 H_PUT_16 (abfd
, in
->x_scn
.x_nlinno
,
5771 ext
->Section
.NumberOfLinenumbers
);
5772 H_PUT_32 (abfd
, in
->x_scn
.x_checksum
, ext
->Section
.Checksum
);
5773 H_PUT_16 (abfd
, in
->x_scn
.x_associated
& 0xffff,
5774 ext
->Section
.Number
);
5775 H_PUT_16 (abfd
, (in
->x_scn
.x_associated
>> 16),
5776 ext
->Section
.HighNumber
);
5777 H_PUT_8 (abfd
, in
->x_scn
.x_comdat
, ext
->Section
.Selection
);
5783 H_PUT_32 (abfd
, in
->x_sym
.x_tagndx
.l
, ext
->Sym
.WeakDefaultSymIndex
);
5784 H_PUT_32 (abfd
, 1, ext
->Sym
.WeakSearchType
);
5789 static bfd_coff_backend_data bigobj_swap_table
=
5791 coff_bigobj_swap_aux_in
, coff_bigobj_swap_sym_in
, coff_SWAP_lineno_in
,
5792 coff_bigobj_swap_aux_out
, coff_bigobj_swap_sym_out
,
5793 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5794 coff_bigobj_swap_filehdr_out
, coff_SWAP_aouthdr_out
,
5795 coff_SWAP_scnhdr_out
,
5796 FILHSZ_BIGOBJ
, AOUTSZ
, SCNHSZ
, SYMESZ_BIGOBJ
, AUXESZ_BIGOBJ
,
5797 RELSZ
, LINESZ
, FILNMLEN_BIGOBJ
,
5799 COFF_DEFAULT_LONG_SECTION_NAMES
,
5800 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5804 coff_bigobj_swap_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5805 coff_SWAP_reloc_in
, coff_bad_format_hook
, coff_set_arch_mach_hook
,
5806 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5807 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5808 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5809 coff_classify_symbol
, coff_compute_section_file_positions
,
5810 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5811 coff_adjust_symndx
, coff_link_add_one_symbol
,
5812 coff_link_output_has_begun
, coff_final_link_postscript
,
5813 bfd_pe_print_pdata
/* huh */
5816 #endif /* COFF_WITH_PE_BIGOBJ */
5818 #ifndef coff_close_and_cleanup
5819 #define coff_close_and_cleanup _bfd_coff_close_and_cleanup
5822 #ifndef coff_bfd_free_cached_info
5823 #define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
5826 #ifndef coff_get_section_contents
5827 #define coff_get_section_contents _bfd_generic_get_section_contents
5830 #ifndef coff_bfd_copy_private_symbol_data
5831 #define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data
5834 #ifndef coff_bfd_copy_private_header_data
5835 #define coff_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data
5838 #ifndef coff_bfd_copy_private_section_data
5839 #define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data
5842 #ifndef coff_bfd_copy_private_bfd_data
5843 #define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
5846 #ifndef coff_bfd_merge_private_bfd_data
5847 #define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
5850 #ifndef coff_bfd_set_private_flags
5851 #define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
5854 #ifndef coff_bfd_print_private_bfd_data
5855 #define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
5858 #ifndef coff_bfd_is_local_label_name
5859 #define coff_bfd_is_local_label_name _bfd_coff_is_local_label_name
5862 #ifndef coff_bfd_is_target_special_symbol
5863 #define coff_bfd_is_target_special_symbol _bfd_bool_bfd_asymbol_false
5866 #ifndef coff_read_minisymbols
5867 #define coff_read_minisymbols _bfd_generic_read_minisymbols
5870 #ifndef coff_minisymbol_to_symbol
5871 #define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
5874 /* The reloc lookup routine must be supplied by each individual COFF
5876 #ifndef coff_bfd_reloc_type_lookup
5877 #define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
5879 #ifndef coff_bfd_reloc_name_lookup
5880 #define coff_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
5883 #ifndef coff_bfd_get_relocated_section_contents
5884 #define coff_bfd_get_relocated_section_contents \
5885 bfd_generic_get_relocated_section_contents
5888 #ifndef coff_bfd_relax_section
5889 #define coff_bfd_relax_section bfd_generic_relax_section
5892 #ifndef coff_bfd_gc_sections
5893 #define coff_bfd_gc_sections bfd_coff_gc_sections
5896 #ifndef coff_bfd_lookup_section_flags
5897 #define coff_bfd_lookup_section_flags bfd_generic_lookup_section_flags
5900 #ifndef coff_bfd_merge_sections
5901 #define coff_bfd_merge_sections bfd_generic_merge_sections
5904 #ifndef coff_bfd_is_group_section
5905 #define coff_bfd_is_group_section bfd_generic_is_group_section
5908 #ifndef coff_bfd_group_name
5909 #define coff_bfd_group_name bfd_coff_group_name
5912 #ifndef coff_bfd_discard_group
5913 #define coff_bfd_discard_group bfd_generic_discard_group
5916 #ifndef coff_section_already_linked
5917 #define coff_section_already_linked \
5918 _bfd_coff_section_already_linked
5921 #ifndef coff_bfd_define_common_symbol
5922 #define coff_bfd_define_common_symbol bfd_generic_define_common_symbol
5925 #ifndef coff_bfd_link_hide_symbol
5926 #define coff_bfd_link_hide_symbol _bfd_generic_link_hide_symbol
5929 #ifndef coff_bfd_define_start_stop
5930 #define coff_bfd_define_start_stop bfd_generic_define_start_stop
5933 #define CREATE_BIG_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5934 const bfd_target VAR = \
5937 bfd_target_coff_flavour, \
5938 BFD_ENDIAN_BIG, /* Data byte order is big. */ \
5939 BFD_ENDIAN_BIG, /* Header byte order is big. */ \
5940 /* object flags */ \
5941 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5942 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5943 /* section flags */ \
5944 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5945 UNDER, /* Leading symbol underscore. */ \
5946 '/', /* AR_pad_char. */ \
5947 15, /* AR_max_namelen. */ \
5948 0, /* match priority. */ \
5949 TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */ \
5951 /* Data conversion functions. */ \
5952 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5953 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5954 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5956 /* Header conversion functions. */ \
5957 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5958 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5959 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5961 { /* bfd_check_format. */ \
5962 _bfd_dummy_target, \
5964 bfd_generic_archive_p, \
5967 { /* bfd_set_format. */ \
5968 _bfd_bool_bfd_false_error, \
5970 _bfd_generic_mkarchive, \
5971 _bfd_bool_bfd_false_error \
5973 { /* bfd_write_contents. */ \
5974 _bfd_bool_bfd_false_error, \
5975 coff_write_object_contents, \
5976 _bfd_write_archive_contents, \
5977 _bfd_bool_bfd_false_error \
5980 BFD_JUMP_TABLE_GENERIC (coff), \
5981 BFD_JUMP_TABLE_COPY (coff), \
5982 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5983 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5984 BFD_JUMP_TABLE_SYMBOLS (coff), \
5985 BFD_JUMP_TABLE_RELOCS (coff), \
5986 BFD_JUMP_TABLE_WRITE (coff), \
5987 BFD_JUMP_TABLE_LINK (coff), \
5988 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5995 #define CREATE_BIGHDR_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5996 const bfd_target VAR = \
5999 bfd_target_coff_flavour, \
6000 BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \
6001 BFD_ENDIAN_BIG, /* Header byte order is big. */ \
6002 /* object flags */ \
6003 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
6004 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
6005 /* section flags */ \
6006 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
6007 UNDER, /* Leading symbol underscore. */ \
6008 '/', /* AR_pad_char. */ \
6009 15, /* AR_max_namelen. */ \
6010 0, /* match priority. */ \
6011 TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */ \
6013 /* Data conversion functions. */ \
6014 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
6015 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
6016 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
6018 /* Header conversion functions. */ \
6019 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
6020 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
6021 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
6023 { /* bfd_check_format. */ \
6024 _bfd_dummy_target, \
6026 bfd_generic_archive_p, \
6029 { /* bfd_set_format. */ \
6030 _bfd_bool_bfd_false_error, \
6032 _bfd_generic_mkarchive, \
6033 _bfd_bool_bfd_false_error \
6035 { /* bfd_write_contents. */ \
6036 _bfd_bool_bfd_false_error, \
6037 coff_write_object_contents, \
6038 _bfd_write_archive_contents, \
6039 _bfd_bool_bfd_false_error \
6042 BFD_JUMP_TABLE_GENERIC (coff), \
6043 BFD_JUMP_TABLE_COPY (coff), \
6044 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
6045 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
6046 BFD_JUMP_TABLE_SYMBOLS (coff), \
6047 BFD_JUMP_TABLE_RELOCS (coff), \
6048 BFD_JUMP_TABLE_WRITE (coff), \
6049 BFD_JUMP_TABLE_LINK (coff), \
6050 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
6057 #define CREATE_LITTLE_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
6058 const bfd_target VAR = \
6061 bfd_target_coff_flavour, \
6062 BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \
6063 BFD_ENDIAN_LITTLE, /* Header byte order is little. */ \
6064 /* object flags */ \
6065 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
6066 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
6067 /* section flags */ \
6068 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
6069 UNDER, /* Leading symbol underscore. */ \
6070 '/', /* AR_pad_char. */ \
6071 15, /* AR_max_namelen. */ \
6072 0, /* match priority. */ \
6073 TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */ \
6075 /* Data conversion functions. */ \
6076 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
6077 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
6078 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
6079 /* Header conversion functions. */ \
6080 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
6081 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
6082 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
6084 { /* bfd_check_format. */ \
6085 _bfd_dummy_target, \
6087 bfd_generic_archive_p, \
6090 { /* bfd_set_format. */ \
6091 _bfd_bool_bfd_false_error, \
6093 _bfd_generic_mkarchive, \
6094 _bfd_bool_bfd_false_error \
6096 { /* bfd_write_contents. */ \
6097 _bfd_bool_bfd_false_error, \
6098 coff_write_object_contents, \
6099 _bfd_write_archive_contents, \
6100 _bfd_bool_bfd_false_error \
6103 BFD_JUMP_TABLE_GENERIC (coff), \
6104 BFD_JUMP_TABLE_COPY (coff), \
6105 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
6106 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
6107 BFD_JUMP_TABLE_SYMBOLS (coff), \
6108 BFD_JUMP_TABLE_RELOCS (coff), \
6109 BFD_JUMP_TABLE_WRITE (coff), \
6110 BFD_JUMP_TABLE_LINK (coff), \
6111 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \