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252b5132 1/* Support for the generic parts of most COFF variants, for BFD.
7898deda 2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
0aabe54e 3 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
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4 Free Software Foundation, Inc.
5 Written by Cygnus Support.
6
ed781d5d 7 This file is part of BFD, the Binary File Descriptor library.
252b5132 8
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9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
cd123cb7 11 the Free Software Foundation; either version 3 of the License, or
ed781d5d 12 (at your option) any later version.
252b5132 13
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14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
252b5132 18
ed781d5d
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19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
cd123cb7
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21 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
22 MA 02110-1301, USA. */
252b5132 23
7920ce38
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24/* Most of this hacked by Steve Chamberlain,
25 sac@cygnus.com. */
252b5132 26/*
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27SECTION
28 coff backends
29
30 BFD supports a number of different flavours of coff format.
31 The major differences between formats are the sizes and
32 alignments of fields in structures on disk, and the occasional
33 extra field.
34
35 Coff in all its varieties is implemented with a few common
36 files and a number of implementation specific files. For
37 example, The 88k bcs coff format is implemented in the file
38 @file{coff-m88k.c}. This file @code{#include}s
39 @file{coff/m88k.h} which defines the external structure of the
40 coff format for the 88k, and @file{coff/internal.h} which
41 defines the internal structure. @file{coff-m88k.c} also
42 defines the relocations used by the 88k format
43 @xref{Relocations}.
44
45 The Intel i960 processor version of coff is implemented in
46 @file{coff-i960.c}. This file has the same structure as
47 @file{coff-m88k.c}, except that it includes @file{coff/i960.h}
48 rather than @file{coff-m88k.h}.
49
50SUBSECTION
51 Porting to a new version of coff
52
53 The recommended method is to select from the existing
54 implementations the version of coff which is most like the one
55 you want to use. For example, we'll say that i386 coff is
56 the one you select, and that your coff flavour is called foo.
57 Copy @file{i386coff.c} to @file{foocoff.c}, copy
58 @file{../include/coff/i386.h} to @file{../include/coff/foo.h},
59 and add the lines to @file{targets.c} and @file{Makefile.in}
60 so that your new back end is used. Alter the shapes of the
61 structures in @file{../include/coff/foo.h} so that they match
62 what you need. You will probably also have to add
63 @code{#ifdef}s to the code in @file{coff/internal.h} and
64 @file{coffcode.h} if your version of coff is too wild.
65
66 You can verify that your new BFD backend works quite simply by
67 building @file{objdump} from the @file{binutils} directory,
68 and making sure that its version of what's going on and your
69 host system's idea (assuming it has the pretty standard coff
70 dump utility, usually called @code{att-dump} or just
71 @code{dump}) are the same. Then clean up your code, and send
72 what you've done to Cygnus. Then your stuff will be in the
73 next release, and you won't have to keep integrating it.
74
75SUBSECTION
76 How the coff backend works
77
78SUBSUBSECTION
79 File layout
80
81 The Coff backend is split into generic routines that are
82 applicable to any Coff target and routines that are specific
83 to a particular target. The target-specific routines are
84 further split into ones which are basically the same for all
85 Coff targets except that they use the external symbol format
86 or use different values for certain constants.
87
88 The generic routines are in @file{coffgen.c}. These routines
89 work for any Coff target. They use some hooks into the target
90 specific code; the hooks are in a @code{bfd_coff_backend_data}
91 structure, one of which exists for each target.
92
93 The essentially similar target-specific routines are in
94 @file{coffcode.h}. This header file includes executable C code.
95 The various Coff targets first include the appropriate Coff
96 header file, make any special defines that are needed, and
97 then include @file{coffcode.h}.
98
99 Some of the Coff targets then also have additional routines in
100 the target source file itself.
101
102 For example, @file{coff-i960.c} includes
103 @file{coff/internal.h} and @file{coff/i960.h}. It then
104 defines a few constants, such as @code{I960}, and includes
105 @file{coffcode.h}. Since the i960 has complex relocation
106 types, @file{coff-i960.c} also includes some code to
107 manipulate the i960 relocs. This code is not in
108 @file{coffcode.h} because it would not be used by any other
109 target.
110
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111SUBSUBSECTION
112 Coff long section names
113
114 In the standard Coff object format, section names are limited to
115 the eight bytes available in the @code{s_name} field of the
116 @code{SCNHDR} section header structure. The format requires the
117 field to be NUL-padded, but not necessarily NUL-terminated, so
118 the longest section names permitted are a full eight characters.
119
120 The Microsoft PE variants of the Coff object file format add
121 an extension to support the use of long section names. This
122 extension is defined in section 4 of the Microsoft PE/COFF
123 specification (rev 8.1). If a section name is too long to fit
124 into the section header's @code{s_name} field, it is instead
125 placed into the string table, and the @code{s_name} field is
126 filled with a slash ("/") followed by the ASCII decimal
127 representation of the offset of the full name relative to the
128 string table base.
129
130 Note that this implies that the extension can only be used in object
131 files, as executables do not contain a string table. The standard
132 specifies that long section names from objects emitted into executable
133 images are to be truncated.
134
135 However, as a GNU extension, BFD can generate executable images
136 that contain a string table and long section names. This
137 would appear to be technically valid, as the standard only says
138 that Coff debugging information is deprecated, not forbidden,
139 and in practice it works, although some tools that parse PE files
140 expecting the MS standard format may become confused; @file{PEview} is
141 one known example.
142
143 The functionality is supported in BFD by code implemented under
144 the control of the macro @code{COFF_LONG_SECTION_NAMES}. If not
145 defined, the format does not support long section names in any way.
146 If defined, it is used to initialise a flag,
147 @code{_bfd_coff_long_section_names}, and a hook function pointer,
148 @code{_bfd_coff_set_long_section_names}, in the Coff backend data
149 structure. The flag controls the generation of long section names
150 in output BFDs at runtime; if it is false, as it will be by default
151 when generating an executable image, long section names are truncated;
152 if true, the long section names extension is employed. The hook
153 points to a function that allows the value of the flag to be altered
154 at runtime, on formats that support long section names at all; on
155 other formats it points to a stub that returns an error indication.
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156
157 With input BFDs, the flag is set according to whether any long section
158 names are detected while reading the section headers. For a completely
159 new BFD, the flag is set to the default for the target format. This
160 information can be used by a client of the BFD library when deciding
161 what output format to generate, and means that a BFD that is opened
162 for read and subsequently converted to a writeable BFD and modified
163 in-place will retain whatever format it had on input.
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164
165 If @code{COFF_LONG_SECTION_NAMES} is simply defined (blank), or is
166 defined to the value "1", then long section names are enabled by
167 default; if it is defined to the value zero, they are disabled by
168 default (but still accepted in input BFDs). The header @file{coffcode.h}
169 defines a macro, @code{COFF_DEFAULT_LONG_SECTION_NAMES}, which is
170 used in the backends to initialise the backend data structure fields
171 appropriately; see the comments for further detail.
172
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173SUBSUBSECTION
174 Bit twiddling
175
176 Each flavour of coff supported in BFD has its own header file
177 describing the external layout of the structures. There is also
178 an internal description of the coff layout, in
179 @file{coff/internal.h}. A major function of the
180 coff backend is swapping the bytes and twiddling the bits to
181 translate the external form of the structures into the normal
182 internal form. This is all performed in the
183 @code{bfd_swap}_@i{thing}_@i{direction} routines. Some
184 elements are different sizes between different versions of
185 coff; it is the duty of the coff version specific include file
186 to override the definitions of various packing routines in
187 @file{coffcode.h}. E.g., the size of line number entry in coff is
188 sometimes 16 bits, and sometimes 32 bits. @code{#define}ing
189 @code{PUT_LNSZ_LNNO} and @code{GET_LNSZ_LNNO} will select the
190 correct one. No doubt, some day someone will find a version of
191 coff which has a varying field size not catered to at the
192 moment. To port BFD, that person will have to add more @code{#defines}.
193 Three of the bit twiddling routines are exported to
194 @code{gdb}; @code{coff_swap_aux_in}, @code{coff_swap_sym_in}
00692651 195 and @code{coff_swap_lineno_in}. @code{GDB} reads the symbol
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196 table on its own, but uses BFD to fix things up. More of the
197 bit twiddlers are exported for @code{gas};
198 @code{coff_swap_aux_out}, @code{coff_swap_sym_out},
199 @code{coff_swap_lineno_out}, @code{coff_swap_reloc_out},
200 @code{coff_swap_filehdr_out}, @code{coff_swap_aouthdr_out},
201 @code{coff_swap_scnhdr_out}. @code{Gas} currently keeps track
202 of all the symbol table and reloc drudgery itself, thereby
203 saving the internal BFD overhead, but uses BFD to swap things
204 on the way out, making cross ports much safer. Doing so also
205 allows BFD (and thus the linker) to use the same header files
206 as @code{gas}, which makes one avenue to disaster disappear.
207
208SUBSUBSECTION
209 Symbol reading
210
211 The simple canonical form for symbols used by BFD is not rich
212 enough to keep all the information available in a coff symbol
213 table. The back end gets around this problem by keeping the original
214 symbol table around, "behind the scenes".
215
216 When a symbol table is requested (through a call to
217 @code{bfd_canonicalize_symtab}), a request gets through to
218 @code{coff_get_normalized_symtab}. This reads the symbol table from
219 the coff file and swaps all the structures inside into the
220 internal form. It also fixes up all the pointers in the table
221 (represented in the file by offsets from the first symbol in
222 the table) into physical pointers to elements in the new
223 internal table. This involves some work since the meanings of
224 fields change depending upon context: a field that is a
225 pointer to another structure in the symbol table at one moment
226 may be the size in bytes of a structure at the next. Another
227 pass is made over the table. All symbols which mark file names
228 (<<C_FILE>> symbols) are modified so that the internal
229 string points to the value in the auxent (the real filename)
230 rather than the normal text associated with the symbol
231 (@code{".file"}).
232
233 At this time the symbol names are moved around. Coff stores
234 all symbols less than nine characters long physically
235 within the symbol table; longer strings are kept at the end of
46f2f11d 236 the file in the string table. This pass moves all strings
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237 into memory and replaces them with pointers to the strings.
238
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239 The symbol table is massaged once again, this time to create
240 the canonical table used by the BFD application. Each symbol
241 is inspected in turn, and a decision made (using the
242 @code{sclass} field) about the various flags to set in the
243 @code{asymbol}. @xref{Symbols}. The generated canonical table
244 shares strings with the hidden internal symbol table.
245
246 Any linenumbers are read from the coff file too, and attached
247 to the symbols which own the functions the linenumbers belong to.
248
249SUBSUBSECTION
250 Symbol writing
251
252 Writing a symbol to a coff file which didn't come from a coff
253 file will lose any debugging information. The @code{asymbol}
254 structure remembers the BFD from which the symbol was taken, and on
255 output the back end makes sure that the same destination target as
256 source target is present.
257
258 When the symbols have come from a coff file then all the
259 debugging information is preserved.
260
261 Symbol tables are provided for writing to the back end in a
262 vector of pointers to pointers. This allows applications like
263 the linker to accumulate and output large symbol tables
264 without having to do too much byte copying.
265
266 This function runs through the provided symbol table and
267 patches each symbol marked as a file place holder
268 (@code{C_FILE}) to point to the next file place holder in the
269 list. It also marks each @code{offset} field in the list with
270 the offset from the first symbol of the current symbol.
271
272 Another function of this procedure is to turn the canonical
273 value form of BFD into the form used by coff. Internally, BFD
274 expects symbol values to be offsets from a section base; so a
275 symbol physically at 0x120, but in a section starting at
276 0x100, would have the value 0x20. Coff expects symbols to
277 contain their final value, so symbols have their values
278 changed at this point to reflect their sum with their owning
279 section. This transformation uses the
280 <<output_section>> field of the @code{asymbol}'s
281 @code{asection} @xref{Sections}.
282
283 o <<coff_mangle_symbols>>
284
285 This routine runs though the provided symbol table and uses
286 the offsets generated by the previous pass and the pointers
287 generated when the symbol table was read in to create the
ed781d5d 288 structured hierarchy required by coff. It changes each pointer
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289 to a symbol into the index into the symbol table of the asymbol.
290
291 o <<coff_write_symbols>>
292
293 This routine runs through the symbol table and patches up the
294 symbols from their internal form into the coff way, calls the
295 bit twiddlers, and writes out the table to the file.
296
297*/
298
299/*
300INTERNAL_DEFINITION
301 coff_symbol_type
302
303DESCRIPTION
304 The hidden information for an <<asymbol>> is described in a
305 <<combined_entry_type>>:
306
307CODE_FRAGMENT
308.
309.typedef struct coff_ptr_struct
310.{
dc810e39
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311. {* Remembers the offset from the first symbol in the file for
312. this symbol. Generated by coff_renumber_symbols. *}
313. unsigned int offset;
252b5132 314.
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315. {* Should the value of this symbol be renumbered. Used for
316. XCOFF C_BSTAT symbols. Set by coff_slurp_symbol_table. *}
317. unsigned int fix_value : 1;
252b5132 318.
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319. {* Should the tag field of this symbol be renumbered.
320. Created by coff_pointerize_aux. *}
321. unsigned int fix_tag : 1;
252b5132 322.
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323. {* Should the endidx field of this symbol be renumbered.
324. Created by coff_pointerize_aux. *}
325. unsigned int fix_end : 1;
252b5132 326.
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327. {* Should the x_csect.x_scnlen field be renumbered.
328. Created by coff_pointerize_aux. *}
329. unsigned int fix_scnlen : 1;
252b5132 330.
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331. {* Fix up an XCOFF C_BINCL/C_EINCL symbol. The value is the
332. index into the line number entries. Set by coff_slurp_symbol_table. *}
333. unsigned int fix_line : 1;
252b5132 334.
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335. {* The container for the symbol structure as read and translated
336. from the file. *}
337. union
338. {
339. union internal_auxent auxent;
340. struct internal_syment syment;
341. } u;
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342.} combined_entry_type;
343.
344.
345.{* Each canonical asymbol really looks like this: *}
346.
347.typedef struct coff_symbol_struct
348.{
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349. {* The actual symbol which the rest of BFD works with *}
350. asymbol symbol;
252b5132 351.
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352. {* A pointer to the hidden information for this symbol *}
353. combined_entry_type *native;
252b5132 354.
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355. {* A pointer to the linenumber information for this symbol *}
356. struct lineno_cache_entry *lineno;
252b5132 357.
dc810e39 358. {* Have the line numbers been relocated yet ? *}
b34976b6 359. bfd_boolean done_lineno;
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360.} coff_symbol_type;
361
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362*/
363
3d03da9a
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364#include "libiberty.h"
365
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366#ifdef COFF_WITH_PE
367#include "peicode.h"
368#else
369#include "coffswap.h"
370#endif
371
b5b2699c 372#define STRING_SIZE_SIZE 4
252b5132 373
8a7140c3
NC
374#define DOT_DEBUG ".debug"
375#define GNU_LINKONCE_WI ".gnu.linkonce.wi."
802d4822 376#define GNU_LINKONCE_WT ".gnu.linkonce.wt."
bdeb4032 377#define DOT_RELOC ".reloc"
8a7140c3 378
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379#if defined (COFF_LONG_SECTION_NAMES)
380/* Needed to expand the inputs to BLANKOR1TOODD. */
381#define COFFLONGSECTIONCATHELPER(x,y) x ## y
382/* If the input macro Y is blank or '1', return an odd number; if it is
383 '0', return an even number. Result undefined in all other cases. */
384#define BLANKOR1TOODD(y) COFFLONGSECTIONCATHELPER(1,y)
385/* Defined to numerical 0 or 1 according to whether generation of long
386 section names is disabled or enabled by default. */
387#define COFF_ENABLE_LONG_SECTION_NAMES (BLANKOR1TOODD(COFF_LONG_SECTION_NAMES) & 1)
388/* Where long section names are supported, we allow them to be enabled
389 and disabled at runtime, so select an appropriate hook function for
390 _bfd_coff_set_long_section_names. */
391#define COFF_LONG_SECTION_NAMES_SETTER bfd_coff_set_long_section_names_allowed
392#else /* !defined (COFF_LONG_SECTION_NAMES) */
393/* If long section names are not supported, this stub disallows any
394 attempt to enable them at run-time. */
395#define COFF_LONG_SECTION_NAMES_SETTER bfd_coff_set_long_section_names_disallowed
396#endif /* defined (COFF_LONG_SECTION_NAMES) */
397
398/* Define a macro that can be used to initialise both the fields relating
399 to long section names in the backend data struct simultaneously. */
400#if COFF_ENABLE_LONG_SECTION_NAMES
401#define COFF_DEFAULT_LONG_SECTION_NAMES (TRUE), COFF_LONG_SECTION_NAMES_SETTER
402#else /* !COFF_ENABLE_LONG_SECTION_NAMES */
403#define COFF_DEFAULT_LONG_SECTION_NAMES (FALSE), COFF_LONG_SECTION_NAMES_SETTER
404#endif /* COFF_ENABLE_LONG_SECTION_NAMES */
405
406#if defined (COFF_LONG_SECTION_NAMES)
407static bfd_boolean bfd_coff_set_long_section_names_allowed
408 (bfd *, int);
409#else /* !defined (COFF_LONG_SECTION_NAMES) */
410static bfd_boolean bfd_coff_set_long_section_names_disallowed
411 (bfd *, int);
412#endif /* defined (COFF_LONG_SECTION_NAMES) */
b34976b6 413static long sec_to_styp_flags
7920ce38 414 (const char *, flagword);
b34976b6 415static bfd_boolean styp_to_sec_flags
7920ce38 416 (bfd *, void *, const char *, asection *, flagword *);
b34976b6 417static bfd_boolean coff_bad_format_hook
7920ce38 418 (bfd *, void *);
5dccc1dd 419static void coff_set_custom_section_alignment
7920ce38
NC
420 (bfd *, asection *, const struct coff_section_alignment_entry *,
421 const unsigned int);
b34976b6 422static bfd_boolean coff_new_section_hook
7920ce38 423 (bfd *, asection *);
b34976b6 424static bfd_boolean coff_set_arch_mach_hook
7920ce38 425 (bfd *, void *);
b34976b6 426static bfd_boolean coff_write_relocs
7920ce38 427 (bfd *, int);
b34976b6 428static bfd_boolean coff_set_flags
7920ce38 429 (bfd *, unsigned int *, unsigned short *);
b34976b6 430static bfd_boolean coff_set_arch_mach
7920ce38 431 (bfd *, enum bfd_architecture, unsigned long) ATTRIBUTE_UNUSED;
b34976b6 432static bfd_boolean coff_compute_section_file_positions
7920ce38 433 (bfd *);
b34976b6 434static bfd_boolean coff_write_object_contents
7920ce38 435 (bfd *) ATTRIBUTE_UNUSED;
b34976b6 436static bfd_boolean coff_set_section_contents
7920ce38
NC
437 (bfd *, asection *, const void *, file_ptr, bfd_size_type);
438static void * buy_and_read
439 (bfd *, file_ptr, bfd_size_type);
b34976b6 440static bfd_boolean coff_slurp_line_table
7920ce38 441 (bfd *, asection *);
b34976b6 442static bfd_boolean coff_slurp_symbol_table
7920ce38 443 (bfd *);
5d54c628 444static enum coff_symbol_classification coff_classify_symbol
7920ce38 445 (bfd *, struct internal_syment *);
b34976b6 446static bfd_boolean coff_slurp_reloc_table
7920ce38 447 (bfd *, asection *, asymbol **);
252b5132 448static long coff_canonicalize_reloc
7920ce38 449 (bfd *, asection *, arelent **, asymbol **);
252b5132 450#ifndef coff_mkobject_hook
7920ce38
NC
451static void * coff_mkobject_hook
452 (bfd *, void *, void *);
252b5132 453#endif
1276aefa 454#ifdef COFF_WITH_PE
b34976b6 455static flagword handle_COMDAT
7920ce38 456 (bfd *, flagword, void *, const char *, asection *);
1276aefa 457#endif
05793179 458#ifdef COFF_IMAGE_WITH_PE
b34976b6 459static bfd_boolean coff_read_word
7920ce38 460 (bfd *, unsigned int *);
b34976b6 461static unsigned int coff_compute_checksum
7920ce38 462 (bfd *);
b34976b6 463static bfd_boolean coff_apply_checksum
7920ce38 464 (bfd *);
05793179 465#endif
5a5b9651
SS
466#ifdef TICOFF
467static bfd_boolean ticoff0_bad_format_hook
7920ce38 468 (bfd *, void * );
5a5b9651 469static bfd_boolean ticoff1_bad_format_hook
7920ce38 470 (bfd *, void * );
5a5b9651 471#endif
252b5132
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472\f
473/* void warning(); */
474
88183869
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475#if defined (COFF_LONG_SECTION_NAMES)
476static bfd_boolean
477bfd_coff_set_long_section_names_allowed (bfd *abfd, int enable)
478{
479 coff_backend_info (abfd)->_bfd_coff_long_section_names = enable;
480 return TRUE;
481}
482#else /* !defined (COFF_LONG_SECTION_NAMES) */
483static bfd_boolean
484bfd_coff_set_long_section_names_disallowed (bfd *abfd, int enable)
485{
486 (void) abfd;
487 (void) enable;
488 return FALSE;
489}
490#endif /* defined (COFF_LONG_SECTION_NAMES) */
491
41733515
ILT
492/* Return a word with STYP_* (scnhdr.s_flags) flags set to represent
493 the incoming SEC_* flags. The inverse of this function is
494 styp_to_sec_flags(). NOTE: If you add to/change this routine, you
495 should probably mirror the changes in styp_to_sec_flags(). */
496
497#ifndef COFF_WITH_PE
498
51db3708 499/* Macros for setting debugging flags. */
7920ce38 500
51db3708
NC
501#ifdef STYP_DEBUG
502#define STYP_XCOFF_DEBUG STYP_DEBUG
503#else
504#define STYP_XCOFF_DEBUG STYP_INFO
505#endif
506
507#ifdef COFF_ALIGN_IN_S_FLAGS
508#define STYP_DEBUG_INFO STYP_DSECT
509#else
510#define STYP_DEBUG_INFO STYP_INFO
511#endif
512
252b5132 513static long
7920ce38 514sec_to_styp_flags (const char *sec_name, flagword sec_flags)
252b5132
RH
515{
516 long styp_flags = 0;
517
518 if (!strcmp (sec_name, _TEXT))
519 {
520 styp_flags = STYP_TEXT;
521 }
522 else if (!strcmp (sec_name, _DATA))
523 {
524 styp_flags = STYP_DATA;
525 }
526 else if (!strcmp (sec_name, _BSS))
527 {
528 styp_flags = STYP_BSS;
529#ifdef _COMMENT
530 }
531 else if (!strcmp (sec_name, _COMMENT))
532 {
533 styp_flags = STYP_INFO;
534#endif /* _COMMENT */
535#ifdef _LIB
536 }
537 else if (!strcmp (sec_name, _LIB))
538 {
539 styp_flags = STYP_LIB;
540#endif /* _LIB */
541#ifdef _LIT
542 }
543 else if (!strcmp (sec_name, _LIT))
544 {
545 styp_flags = STYP_LIT;
546#endif /* _LIT */
547 }
0112cd26 548 else if (CONST_STRNEQ (sec_name, DOT_DEBUG))
252b5132 549 {
51db3708
NC
550 /* Handle the XCOFF debug section and DWARF2 debug sections. */
551 if (!sec_name[6])
46f2f11d 552 styp_flags = STYP_XCOFF_DEBUG;
51db3708 553 else
46f2f11d 554 styp_flags = STYP_DEBUG_INFO;
252b5132 555 }
0112cd26 556 else if (CONST_STRNEQ (sec_name, ".stab"))
252b5132 557 {
51db3708
NC
558 styp_flags = STYP_DEBUG_INFO;
559 }
560#ifdef COFF_LONG_SECTION_NAMES
802d4822
KT
561 else if (CONST_STRNEQ (sec_name, GNU_LINKONCE_WI)
562 || CONST_STRNEQ (sec_name, GNU_LINKONCE_WT))
51db3708
NC
563 {
564 styp_flags = STYP_DEBUG_INFO;
252b5132 565 }
51db3708 566#endif
252b5132
RH
567#ifdef RS6000COFF_C
568 else if (!strcmp (sec_name, _PAD))
569 {
570 styp_flags = STYP_PAD;
571 }
572 else if (!strcmp (sec_name, _LOADER))
573 {
574 styp_flags = STYP_LOADER;
575 }
67fdeebe
TR
576 else if (!strcmp (sec_name, _EXCEPT))
577 {
578 styp_flags = STYP_EXCEPT;
579 }
580 else if (!strcmp (sec_name, _TYPCHK))
581 {
582 styp_flags = STYP_TYPCHK;
583 }
85645aed
TG
584 else if (sec_flags & SEC_DEBUGGING)
585 {
586 int i;
587
588 for (i = 0; i < XCOFF_DWSECT_NBR_NAMES; i++)
589 if (!strcmp (sec_name, xcoff_dwsect_names[i].name))
590 {
591 styp_flags = STYP_DWARF | xcoff_dwsect_names[i].flag;
592 break;
593 }
594 }
252b5132
RH
595#endif
596 /* Try and figure out what it should be */
597 else if (sec_flags & SEC_CODE)
598 {
599 styp_flags = STYP_TEXT;
600 }
601 else if (sec_flags & SEC_DATA)
602 {
603 styp_flags = STYP_DATA;
604 }
605 else if (sec_flags & SEC_READONLY)
606 {
607#ifdef STYP_LIT /* 29k readonly text/data section */
608 styp_flags = STYP_LIT;
609#else
610 styp_flags = STYP_TEXT;
611#endif /* STYP_LIT */
612 }
613 else if (sec_flags & SEC_LOAD)
614 {
615 styp_flags = STYP_TEXT;
616 }
617 else if (sec_flags & SEC_ALLOC)
618 {
619 styp_flags = STYP_BSS;
620 }
621
34cbe64e 622#ifdef STYP_CLINK
ebe372c1 623 if (sec_flags & SEC_TIC54X_CLINK)
34cbe64e
TW
624 styp_flags |= STYP_CLINK;
625#endif
626
627#ifdef STYP_BLOCK
ebe372c1 628 if (sec_flags & SEC_TIC54X_BLOCK)
34cbe64e
TW
629 styp_flags |= STYP_BLOCK;
630#endif
631
252b5132
RH
632#ifdef STYP_NOLOAD
633 if ((sec_flags & (SEC_NEVER_LOAD | SEC_COFF_SHARED_LIBRARY)) != 0)
634 styp_flags |= STYP_NOLOAD;
635#endif
636
41733515
ILT
637 return styp_flags;
638}
639
640#else /* COFF_WITH_PE */
641
642/* The PE version; see above for the general comments. The non-PE
643 case seems to be more guessing, and breaks PE format; specifically,
644 .rdata is readonly, but it sure ain't text. Really, all this
645 should be set up properly in gas (or whatever assembler is in use),
646 and honor whatever objcopy/strip, etc. sent us as input. */
647
648static long
7920ce38 649sec_to_styp_flags (const char *sec_name, flagword sec_flags)
41733515
ILT
650{
651 long styp_flags = 0;
72e4db75
KT
652 bfd_boolean is_dbg = FALSE;
653
654 if (CONST_STRNEQ (sec_name, DOT_DEBUG)
655#ifdef COFF_LONG_SECTION_NAMES
656 || CONST_STRNEQ (sec_name, GNU_LINKONCE_WI)
802d4822 657 || CONST_STRNEQ (sec_name, GNU_LINKONCE_WT)
72e4db75
KT
658#endif
659 || CONST_STRNEQ (sec_name, ".stab"))
660 is_dbg = TRUE;
41733515
ILT
661
662 /* caution: there are at least three groups of symbols that have
663 very similar bits and meanings: IMAGE_SCN*, SEC_*, and STYP_*.
664 SEC_* are the BFD internal flags, used for generic BFD
665 information. STYP_* are the COFF section flags which appear in
666 COFF files. IMAGE_SCN_* are the PE section flags which appear in
667 PE files. The STYP_* flags and the IMAGE_SCN_* flags overlap,
668 but there are more IMAGE_SCN_* flags. */
669
8a7140c3 670 /* FIXME: There is no gas syntax to specify the debug section flag. */
72e4db75 671 if (is_dbg)
72b016b4 672 {
2b914c2b
KT
673 sec_flags &= (SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD
674 | SEC_LINK_DUPLICATES_SAME_CONTENTS
675 | SEC_LINK_DUPLICATES_SAME_SIZE);
72b016b4
NC
676 sec_flags |= SEC_DEBUGGING | SEC_READONLY;
677 }
8a7140c3 678
41733515
ILT
679 /* skip LOAD */
680 /* READONLY later */
681 /* skip RELOC */
682 if ((sec_flags & SEC_CODE) != 0)
683 styp_flags |= IMAGE_SCN_CNT_CODE;
72e4db75 684 if ((sec_flags & (SEC_DATA | SEC_DEBUGGING)) != 0)
41733515
ILT
685 styp_flags |= IMAGE_SCN_CNT_INITIALIZED_DATA;
686 if ((sec_flags & SEC_ALLOC) != 0 && (sec_flags & SEC_LOAD) == 0)
687 styp_flags |= IMAGE_SCN_CNT_UNINITIALIZED_DATA; /* ==STYP_BSS */
688 /* skip ROM */
dc810e39 689 /* skip constRUCTOR */
41733515 690 /* skip CONTENTS */
41733515 691 if ((sec_flags & SEC_IS_COMMON) != 0)
252b5132 692 styp_flags |= IMAGE_SCN_LNK_COMDAT;
41733515
ILT
693 if ((sec_flags & SEC_DEBUGGING) != 0)
694 styp_flags |= IMAGE_SCN_MEM_DISCARDABLE;
72e4db75 695 if ((sec_flags & SEC_EXCLUDE) != 0 && !is_dbg)
41733515 696 styp_flags |= IMAGE_SCN_LNK_REMOVE;
72e4db75 697 if ((sec_flags & SEC_NEVER_LOAD) != 0 && !is_dbg)
41733515
ILT
698 styp_flags |= IMAGE_SCN_LNK_REMOVE;
699 /* skip IN_MEMORY */
700 /* skip SORT */
e60b52c6
KH
701 if (sec_flags & SEC_LINK_ONCE)
702 styp_flags |= IMAGE_SCN_LNK_COMDAT;
2b914c2b
KT
703 if ((sec_flags
704 & (SEC_LINK_DUPLICATES_DISCARD | SEC_LINK_DUPLICATES_SAME_CONTENTS
705 | SEC_LINK_DUPLICATES_SAME_SIZE)) != 0)
706 styp_flags |= IMAGE_SCN_LNK_COMDAT;
707
41733515
ILT
708 /* skip LINKER_CREATED */
709
156621f3
KT
710 if ((sec_flags & SEC_COFF_NOREAD) == 0)
711 styp_flags |= IMAGE_SCN_MEM_READ; /* Invert NOREAD for read. */
712 if ((sec_flags & SEC_READONLY) == 0)
713 styp_flags |= IMAGE_SCN_MEM_WRITE; /* Invert READONLY for write. */
714 if (sec_flags & SEC_CODE)
715 styp_flags |= IMAGE_SCN_MEM_EXECUTE; /* CODE->EXECUTE. */
716 if (sec_flags & SEC_COFF_SHARED)
717 styp_flags |= IMAGE_SCN_MEM_SHARED; /* Shared remains meaningful. */
252b5132 718
e60b52c6 719 return styp_flags;
252b5132 720}
41733515
ILT
721
722#endif /* COFF_WITH_PE */
723
724/* Return a word with SEC_* flags set to represent the incoming STYP_*
725 flags (from scnhdr.s_flags). The inverse of this function is
726 sec_to_styp_flags(). NOTE: If you add to/change this routine, you
727 should probably mirror the changes in sec_to_styp_flags(). */
728
729#ifndef COFF_WITH_PE
730
b34976b6 731static bfd_boolean
7920ce38
NC
732styp_to_sec_flags (bfd *abfd ATTRIBUTE_UNUSED,
733 void * hdr,
734 const char *name,
735 asection *section ATTRIBUTE_UNUSED,
736 flagword *flags_ptr)
252b5132
RH
737{
738 struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
739 long styp_flags = internal_s->s_flags;
740 flagword sec_flags = 0;
741
34cbe64e
TW
742#ifdef STYP_BLOCK
743 if (styp_flags & STYP_BLOCK)
ebe372c1 744 sec_flags |= SEC_TIC54X_BLOCK;
e60b52c6 745#endif
34cbe64e
TW
746
747#ifdef STYP_CLINK
748 if (styp_flags & STYP_CLINK)
ebe372c1 749 sec_flags |= SEC_TIC54X_CLINK;
e60b52c6 750#endif
34cbe64e 751
252b5132
RH
752#ifdef STYP_NOLOAD
753 if (styp_flags & STYP_NOLOAD)
7c8ca0e4 754 sec_flags |= SEC_NEVER_LOAD;
252b5132
RH
755#endif /* STYP_NOLOAD */
756
757 /* For 386 COFF, at least, an unloadable text or data section is
758 actually a shared library section. */
759 if (styp_flags & STYP_TEXT)
760 {
761 if (sec_flags & SEC_NEVER_LOAD)
762 sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY;
763 else
764 sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC;
765 }
766 else if (styp_flags & STYP_DATA)
767 {
768 if (sec_flags & SEC_NEVER_LOAD)
769 sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY;
770 else
771 sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC;
772 }
773 else if (styp_flags & STYP_BSS)
774 {
775#ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
776 if (sec_flags & SEC_NEVER_LOAD)
777 sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY;
778 else
779#endif
780 sec_flags |= SEC_ALLOC;
781 }
782 else if (styp_flags & STYP_INFO)
783 {
784 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
785 defined. coff_compute_section_file_positions uses
786 COFF_PAGE_SIZE to ensure that the low order bits of the
787 section VMA and the file offset match. If we don't know
788 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
789 and demand page loading of the file will fail. */
790#if defined (COFF_PAGE_SIZE) && !defined (COFF_ALIGN_IN_S_FLAGS)
791 sec_flags |= SEC_DEBUGGING;
792#endif
793 }
794 else if (styp_flags & STYP_PAD)
7c8ca0e4 795 sec_flags = 0;
85645aed
TG
796#ifdef RS6000COFF_C
797 else if (styp_flags & STYP_DWARF)
798 sec_flags |= SEC_DEBUGGING;
799#endif
252b5132
RH
800 else if (strcmp (name, _TEXT) == 0)
801 {
802 if (sec_flags & SEC_NEVER_LOAD)
803 sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY;
804 else
805 sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC;
806 }
807 else if (strcmp (name, _DATA) == 0)
808 {
809 if (sec_flags & SEC_NEVER_LOAD)
810 sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY;
811 else
812 sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC;
813 }
814 else if (strcmp (name, _BSS) == 0)
815 {
816#ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
817 if (sec_flags & SEC_NEVER_LOAD)
818 sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY;
819 else
820#endif
821 sec_flags |= SEC_ALLOC;
822 }
0112cd26 823 else if (CONST_STRNEQ (name, DOT_DEBUG)
252b5132
RH
824#ifdef _COMMENT
825 || strcmp (name, _COMMENT) == 0
51db3708
NC
826#endif
827#ifdef COFF_LONG_SECTION_NAMES
0112cd26 828 || CONST_STRNEQ (name, GNU_LINKONCE_WI)
802d4822 829 || CONST_STRNEQ (name, GNU_LINKONCE_WT)
252b5132 830#endif
0112cd26 831 || CONST_STRNEQ (name, ".stab"))
252b5132
RH
832 {
833#ifdef COFF_PAGE_SIZE
834 sec_flags |= SEC_DEBUGGING;
835#endif
836 }
837#ifdef _LIB
838 else if (strcmp (name, _LIB) == 0)
839 ;
840#endif
841#ifdef _LIT
842 else if (strcmp (name, _LIT) == 0)
7c8ca0e4 843 sec_flags = SEC_LOAD | SEC_ALLOC | SEC_READONLY;
252b5132
RH
844#endif
845 else
7c8ca0e4 846 sec_flags |= SEC_ALLOC | SEC_LOAD;
252b5132 847
ed781d5d 848#ifdef STYP_LIT /* A29k readonly text/data section type. */
252b5132 849 if ((styp_flags & STYP_LIT) == STYP_LIT)
7c8ca0e4 850 sec_flags = (SEC_LOAD | SEC_ALLOC | SEC_READONLY);
252b5132 851#endif /* STYP_LIT */
7c8ca0e4 852
ed781d5d 853#ifdef STYP_OTHER_LOAD /* Other loaded sections. */
252b5132 854 if (styp_flags & STYP_OTHER_LOAD)
7c8ca0e4 855 sec_flags = (SEC_LOAD | SEC_ALLOC);
252b5132
RH
856#endif /* STYP_SDATA */
857
41733515
ILT
858#if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
859 /* As a GNU extension, if the name begins with .gnu.linkonce, we
860 only link a single copy of the section. This is used to support
861 g++. g++ will emit each template expansion in its own section.
862 The symbols will be defined as weak, so that multiple definitions
863 are permitted. The GNU linker extension is to actually discard
864 all but one of the sections. */
0112cd26 865 if (CONST_STRNEQ (name, ".gnu.linkonce"))
41733515
ILT
866 sec_flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD;
867#endif
868
7c8ca0e4 869 if (flags_ptr == NULL)
b34976b6 870 return FALSE;
7c8ca0e4
NC
871
872 * flags_ptr = sec_flags;
b34976b6 873 return TRUE;
41733515
ILT
874}
875
876#else /* COFF_WITH_PE */
877
41733515 878static flagword
7920ce38
NC
879handle_COMDAT (bfd * abfd,
880 flagword sec_flags,
881 void * hdr,
882 const char *name,
883 asection *section)
41733515
ILT
884{
885 struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
1276aefa
NC
886 bfd_byte *esymstart, *esym, *esymend;
887 int seen_state = 0;
888 char *target_name = NULL;
889
890 sec_flags |= SEC_LINK_ONCE;
891
892 /* Unfortunately, the PE format stores essential information in
893 the symbol table, of all places. We need to extract that
894 information now, so that objdump and the linker will know how
895 to handle the section without worrying about the symbols. We
896 can't call slurp_symtab, because the linker doesn't want the
897 swapped symbols. */
898
899 /* COMDAT sections are special. The first symbol is the section
900 symbol, which tells what kind of COMDAT section it is. The
901 second symbol is the "comdat symbol" - the one with the
902 unique name. GNU uses the section symbol for the unique
903 name; MS uses ".text" for every comdat section. Sigh. - DJ */
904
905 /* This is not mirrored in sec_to_styp_flags(), but there
906 doesn't seem to be a need to, either, and it would at best be
907 rather messy. */
908
909 if (! _bfd_coff_get_external_symbols (abfd))
910 return sec_flags;
dc810e39 911
1276aefa
NC
912 esymstart = esym = (bfd_byte *) obj_coff_external_syms (abfd);
913 esymend = esym + obj_raw_syment_count (abfd) * bfd_coff_symesz (abfd);
914
915 while (esym < esymend)
41733515 916 {
1276aefa
NC
917 struct internal_syment isym;
918 char buf[SYMNMLEN + 1];
919 const char *symname;
252b5132 920
7920ce38 921 bfd_coff_swap_sym_in (abfd, esym, & isym);
252b5132 922
1276aefa
NC
923 if (sizeof (internal_s->s_name) > SYMNMLEN)
924 {
925 /* This case implies that the matching
926 symbol name will be in the string table. */
927 abort ();
928 }
929
930 if (isym.n_scnum == section->target_index)
931 {
932 /* According to the MSVC documentation, the first
933 TWO entries with the section # are both of
934 interest to us. The first one is the "section
935 symbol" (section name). The second is the comdat
936 symbol name. Here, we've found the first
937 qualifying entry; we distinguish it from the
938 second with a state flag.
939
940 In the case of gas-generated (at least until that
941 is fixed) .o files, it isn't necessarily the
942 second one. It may be some other later symbol.
943
944 Since gas also doesn't follow MS conventions and
945 emits the section similar to .text$<name>, where
946 <something> is the name we're looking for, we
947 distinguish the two as follows:
948
949 If the section name is simply a section name (no
950 $) we presume it's MS-generated, and look at
951 precisely the second symbol for the comdat name.
952 If the section name has a $, we assume it's
953 gas-generated, and look for <something> (whatever
954 follows the $) as the comdat symbol. */
955
ed781d5d 956 /* All 3 branches use this. */
1276aefa
NC
957 symname = _bfd_coff_internal_syment_name (abfd, &isym, buf);
958
959 if (symname == NULL)
960 abort ();
961
962 switch (seen_state)
252b5132 963 {
1276aefa
NC
964 case 0:
965 {
966 /* The first time we've seen the symbol. */
967 union internal_auxent aux;
968
1276aefa
NC
969 /* If it isn't the stuff we're expecting, die;
970 The MS documentation is vague, but it
971 appears that the second entry serves BOTH
972 as the comdat symbol and the defining
973 symbol record (either C_STAT or C_EXT,
974 possibly with an aux entry with debug
975 information if it's a function.) It
976 appears the only way to find the second one
977 is to count. (On Intel, they appear to be
978 adjacent, but on Alpha, they have been
979 found separated.)
980
981 Here, we think we've found the first one,
982 but there's some checking we can do to be
983 sure. */
984
20135e4c
NC
985 if (! ((isym.n_sclass == C_STAT
986 || isym.n_sclass == C_EXT)
f432e63c 987 && BTYPE (isym.n_type) == T_NULL
1276aefa
NC
988 && isym.n_value == 0))
989 abort ();
252b5132 990
1276aefa
NC
991 /* FIXME LATER: MSVC generates section names
992 like .text for comdats. Gas generates
993 names like .text$foo__Fv (in the case of a
994 function). See comment above for more. */
252b5132 995
20135e4c 996 if (isym.n_sclass == C_STAT && strcmp (name, symname) != 0)
6e3b6835
NC
997 _bfd_error_handler (_("%B: warning: COMDAT symbol '%s' does not match section name '%s'"),
998 abfd, symname, name);
999
1000 seen_state = 1;
252b5132 1001
1276aefa 1002 /* This is the section symbol. */
7920ce38 1003 bfd_coff_swap_aux_in (abfd, (esym + bfd_coff_symesz (abfd)),
1276aefa 1004 isym.n_type, isym.n_sclass,
7920ce38 1005 0, isym.n_numaux, & aux);
1276aefa
NC
1006
1007 target_name = strchr (name, '$');
1008 if (target_name != NULL)
1009 {
1010 /* Gas mode. */
1011 seen_state = 2;
1012 /* Skip the `$'. */
1013 target_name += 1;
1014 }
1015
1016 /* FIXME: Microsoft uses NODUPLICATES and
1017 ASSOCIATIVE, but gnu uses ANY and
1018 SAME_SIZE. Unfortunately, gnu doesn't do
1019 the comdat symbols right. So, until we can
1020 fix it to do the right thing, we are
1021 temporarily disabling comdats for the MS
1022 types (they're used in DLLs and C++, but we
1023 don't support *their* C++ libraries anyway
1024 - DJ. */
1025
1026 /* Cygwin does not follow the MS style, and
1027 uses ANY and SAME_SIZE where NODUPLICATES
1028 and ASSOCIATIVE should be used. For
1029 Interix, we just do the right thing up
1030 front. */
1031
1032 switch (aux.x_scn.x_comdat)
1033 {
1034 case IMAGE_COMDAT_SELECT_NODUPLICATES:
e60b52c6 1035#ifdef STRICT_PE_FORMAT
1276aefa 1036 sec_flags |= SEC_LINK_DUPLICATES_ONE_ONLY;
ec0ef80e 1037#else
1276aefa 1038 sec_flags &= ~SEC_LINK_ONCE;
ec0ef80e 1039#endif
1276aefa 1040 break;
252b5132 1041
1276aefa
NC
1042 case IMAGE_COMDAT_SELECT_ANY:
1043 sec_flags |= SEC_LINK_DUPLICATES_DISCARD;
1044 break;
252b5132 1045
1276aefa
NC
1046 case IMAGE_COMDAT_SELECT_SAME_SIZE:
1047 sec_flags |= SEC_LINK_DUPLICATES_SAME_SIZE;
1048 break;
252b5132 1049
1276aefa
NC
1050 case IMAGE_COMDAT_SELECT_EXACT_MATCH:
1051 /* Not yet fully implemented ??? */
1052 sec_flags |= SEC_LINK_DUPLICATES_SAME_CONTENTS;
1053 break;
252b5132 1054
1276aefa
NC
1055 /* debug$S gets this case; other
1056 implications ??? */
e5db213d 1057
1276aefa
NC
1058 /* There may be no symbol... we'll search
1059 the whole table... Is this the right
1060 place to play this game? Or should we do
1061 it when reading it in. */
1062 case IMAGE_COMDAT_SELECT_ASSOCIATIVE:
0717ebb7 1063#ifdef STRICT_PE_FORMAT
1276aefa
NC
1064 /* FIXME: This is not currently implemented. */
1065 sec_flags |= SEC_LINK_DUPLICATES_DISCARD;
ec0ef80e 1066#else
1276aefa 1067 sec_flags &= ~SEC_LINK_ONCE;
ec0ef80e 1068#endif
1276aefa 1069 break;
e5db213d 1070
1276aefa
NC
1071 default: /* 0 means "no symbol" */
1072 /* debug$F gets this case; other
1073 implications ??? */
1074 sec_flags |= SEC_LINK_DUPLICATES_DISCARD;
1075 break;
1076 }
1077 }
1078 break;
41733515 1079
1276aefa
NC
1080 case 2:
1081 /* Gas mode: the first matching on partial name. */
252b5132 1082
e5db213d
ILT
1083#ifndef TARGET_UNDERSCORE
1084#define TARGET_UNDERSCORE 0
1085#endif
ed781d5d 1086 /* Is this the name we're looking for ? */
1276aefa
NC
1087 if (strcmp (target_name,
1088 symname + (TARGET_UNDERSCORE ? 1 : 0)) != 0)
1089 {
1090 /* Not the name we're looking for */
1091 esym += (isym.n_numaux + 1) * bfd_coff_symesz (abfd);
1092 continue;
252b5132 1093 }
1276aefa
NC
1094 /* Fall through. */
1095 case 1:
1096 /* MSVC mode: the lexically second symbol (or
1097 drop through from the above). */
1098 {
1099 char *newname;
dc810e39 1100 bfd_size_type amt;
1276aefa 1101
08da05b0 1102 /* This must the second symbol with the
1276aefa
NC
1103 section #. It is the actual symbol name.
1104 Intel puts the two adjacent, but Alpha (at
1105 least) spreads them out. */
1106
082b7297
L
1107 amt = sizeof (struct coff_comdat_info);
1108 coff_section_data (abfd, section)->comdat
a50b1753 1109 = (struct coff_comdat_info *) bfd_alloc (abfd, amt);
082b7297 1110 if (coff_section_data (abfd, section)->comdat == NULL)
1276aefa
NC
1111 abort ();
1112
082b7297 1113 coff_section_data (abfd, section)->comdat->symbol =
1276aefa
NC
1114 (esym - esymstart) / bfd_coff_symesz (abfd);
1115
dc810e39 1116 amt = strlen (symname) + 1;
a50b1753 1117 newname = (char *) bfd_alloc (abfd, amt);
1276aefa
NC
1118 if (newname == NULL)
1119 abort ();
1120
1121 strcpy (newname, symname);
082b7297
L
1122 coff_section_data (abfd, section)->comdat->name
1123 = newname;
1276aefa 1124 }
252b5132 1125
1276aefa 1126 goto breakloop;
252b5132
RH
1127 }
1128 }
1276aefa
NC
1129
1130 esym += (isym.n_numaux + 1) * bfd_coff_symesz (abfd);
1131 }
1132
1133 breakloop:
1134 return sec_flags;
1135}
1136
1137
1138/* The PE version; see above for the general comments.
1139
1140 Since to set the SEC_LINK_ONCE and associated flags, we have to
1141 look at the symbol table anyway, we return the symbol table index
1142 of the symbol being used as the COMDAT symbol. This is admittedly
1143 ugly, but there's really nowhere else that we have access to the
1144 required information. FIXME: Is the COMDAT symbol index used for
1145 any purpose other than objdump? */
1146
b34976b6 1147static bfd_boolean
7920ce38
NC
1148styp_to_sec_flags (bfd *abfd,
1149 void * hdr,
1150 const char *name,
1151 asection *section,
1152 flagword *flags_ptr)
1276aefa
NC
1153{
1154 struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
1155 long styp_flags = internal_s->s_flags;
1156 flagword sec_flags;
b34976b6 1157 bfd_boolean result = TRUE;
72e4db75 1158 bfd_boolean is_dbg = FALSE;
1276aefa 1159
72e4db75
KT
1160 if (CONST_STRNEQ (name, DOT_DEBUG)
1161#ifdef COFF_LONG_SECTION_NAMES
1162 || CONST_STRNEQ (name, GNU_LINKONCE_WI)
802d4822 1163 || CONST_STRNEQ (name, GNU_LINKONCE_WT)
72e4db75
KT
1164#endif
1165 || CONST_STRNEQ (name, ".stab"))
1166 is_dbg = TRUE;
1276aefa
NC
1167 /* Assume read only unless IMAGE_SCN_MEM_WRITE is specified. */
1168 sec_flags = SEC_READONLY;
1169
156621f3
KT
1170 /* If section disallows read, then set the NOREAD flag. */
1171 if ((styp_flags & IMAGE_SCN_MEM_READ) == 0)
1172 sec_flags |= SEC_COFF_NOREAD;
1173
1276aefa
NC
1174 /* Process each flag bit in styp_flags in turn. */
1175 while (styp_flags)
1176 {
1177 long flag = styp_flags & - styp_flags;
1178 char * unhandled = NULL;
dc810e39 1179
1276aefa
NC
1180 styp_flags &= ~ flag;
1181
1182 /* We infer from the distinct read/write/execute bits the settings
1183 of some of the bfd flags; the actual values, should we need them,
1184 are also in pei_section_data (abfd, section)->pe_flags. */
1185
1186 switch (flag)
1187 {
1188 case STYP_DSECT:
1189 unhandled = "STYP_DSECT";
1190 break;
1191 case STYP_GROUP:
1192 unhandled = "STYP_GROUP";
1193 break;
1194 case STYP_COPY:
1195 unhandled = "STYP_COPY";
1196 break;
1197 case STYP_OVER:
1198 unhandled = "STYP_OVER";
1199 break;
1200#ifdef SEC_NEVER_LOAD
1201 case STYP_NOLOAD:
1202 sec_flags |= SEC_NEVER_LOAD;
1203 break;
dc810e39 1204#endif
1276aefa 1205 case IMAGE_SCN_MEM_READ:
156621f3 1206 sec_flags &= ~SEC_COFF_NOREAD;
1276aefa
NC
1207 break;
1208 case IMAGE_SCN_TYPE_NO_PAD:
1209 /* Skip. */
1210 break;
1211 case IMAGE_SCN_LNK_OTHER:
1212 unhandled = "IMAGE_SCN_LNK_OTHER";
1213 break;
1214 case IMAGE_SCN_MEM_NOT_CACHED:
1215 unhandled = "IMAGE_SCN_MEM_NOT_CACHED";
1216 break;
1217 case IMAGE_SCN_MEM_NOT_PAGED:
05576f10
NC
1218 /* Generate a warning message rather using the 'unhandled'
1219 variable as this will allow some .sys files generate by
1220 other toolchains to be processed. See bugzilla issue 196. */
d003868e
AM
1221 _bfd_error_handler (_("%B: Warning: Ignoring section flag IMAGE_SCN_MEM_NOT_PAGED in section %s"),
1222 abfd, name);
1276aefa
NC
1223 break;
1224 case IMAGE_SCN_MEM_EXECUTE:
1225 sec_flags |= SEC_CODE;
1226 break;
1227 case IMAGE_SCN_MEM_WRITE:
1228 sec_flags &= ~ SEC_READONLY;
1229 break;
1230 case IMAGE_SCN_MEM_DISCARDABLE:
f6d29e26
KT
1231 /* The MS PE spec says that debug sections are DISCARDABLE,
1232 but the presence of a DISCARDABLE flag does not necessarily
1233 mean that a given section contains debug information. Thus
1234 we only set the SEC_DEBUGGING flag on sections that we
1235 recognise as containing debug information. */
72e4db75 1236 if (is_dbg
f6d29e26
KT
1237#ifdef _COMMENT
1238 || strcmp (name, _COMMENT) == 0
1239#endif
72e4db75
KT
1240 )
1241 {
1242 sec_flags |= SEC_DEBUGGING | SEC_READONLY;
1243 }
1276aefa
NC
1244 break;
1245 case IMAGE_SCN_MEM_SHARED:
ebe372c1 1246 sec_flags |= SEC_COFF_SHARED;
1276aefa
NC
1247 break;
1248 case IMAGE_SCN_LNK_REMOVE:
72e4db75
KT
1249 if (!is_dbg)
1250 sec_flags |= SEC_EXCLUDE;
1276aefa
NC
1251 break;
1252 case IMAGE_SCN_CNT_CODE:
1253 sec_flags |= SEC_CODE | SEC_ALLOC | SEC_LOAD;
1254 break;
1255 case IMAGE_SCN_CNT_INITIALIZED_DATA:
72e4db75
KT
1256 if (is_dbg)
1257 sec_flags |= SEC_DEBUGGING;
1258 else
1259 sec_flags |= SEC_DATA | SEC_ALLOC | SEC_LOAD;
1276aefa
NC
1260 break;
1261 case IMAGE_SCN_CNT_UNINITIALIZED_DATA:
1262 sec_flags |= SEC_ALLOC;
1263 break;
1264 case IMAGE_SCN_LNK_INFO:
1265 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
1266 defined. coff_compute_section_file_positions uses
1267 COFF_PAGE_SIZE to ensure that the low order bits of the
1268 section VMA and the file offset match. If we don't know
1269 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
1270 and demand page loading of the file will fail. */
1271#ifdef COFF_PAGE_SIZE
1272 sec_flags |= SEC_DEBUGGING;
1273#endif
1274 break;
1275 case IMAGE_SCN_LNK_COMDAT:
1276 /* COMDAT gets very special treatment. */
1277 sec_flags = handle_COMDAT (abfd, sec_flags, hdr, name, section);
1278 break;
1279 default:
1280 /* Silently ignore for now. */
dc810e39 1281 break;
1276aefa
NC
1282 }
1283
7c8ca0e4 1284 /* If the section flag was not handled, report it here. */
1276aefa 1285 if (unhandled != NULL)
7c8ca0e4
NC
1286 {
1287 (*_bfd_error_handler)
d003868e
AM
1288 (_("%B (%s): Section flag %s (0x%x) ignored"),
1289 abfd, name, unhandled, flag);
b34976b6 1290 result = FALSE;
7c8ca0e4 1291 }
252b5132 1292 }
252b5132 1293
242eabea
ILT
1294#if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
1295 /* As a GNU extension, if the name begins with .gnu.linkonce, we
1296 only link a single copy of the section. This is used to support
1297 g++. g++ will emit each template expansion in its own section.
1298 The symbols will be defined as weak, so that multiple definitions
1299 are permitted. The GNU linker extension is to actually discard
1300 all but one of the sections. */
0112cd26 1301 if (CONST_STRNEQ (name, ".gnu.linkonce"))
242eabea
ILT
1302 sec_flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD;
1303#endif
1304
7c8ca0e4
NC
1305 if (flags_ptr)
1306 * flags_ptr = sec_flags;
dc810e39 1307
7c8ca0e4 1308 return result;
252b5132
RH
1309}
1310
41733515
ILT
1311#endif /* COFF_WITH_PE */
1312
252b5132
RH
1313#define get_index(symbol) ((symbol)->udata.i)
1314
1315/*
1316INTERNAL_DEFINITION
1317 bfd_coff_backend_data
1318
1319CODE_FRAGMENT
1320
5d54c628
ILT
1321.{* COFF symbol classifications. *}
1322.
1323.enum coff_symbol_classification
1324.{
1325. {* Global symbol. *}
1326. COFF_SYMBOL_GLOBAL,
1327. {* Common symbol. *}
1328. COFF_SYMBOL_COMMON,
1329. {* Undefined symbol. *}
1330. COFF_SYMBOL_UNDEFINED,
1331. {* Local symbol. *}
1332. COFF_SYMBOL_LOCAL,
1333. {* PE section symbol. *}
1334. COFF_SYMBOL_PE_SECTION
1335.};
1336.
252b5132
RH
1337Special entry points for gdb to swap in coff symbol table parts:
1338.typedef struct
1339.{
dc810e39 1340. void (*_bfd_coff_swap_aux_in)
7920ce38 1341. (bfd *, void *, int, int, int, int, void *);
252b5132 1342.
dc810e39 1343. void (*_bfd_coff_swap_sym_in)
7920ce38 1344. (bfd *, void *, void *);
252b5132 1345.
dc810e39 1346. void (*_bfd_coff_swap_lineno_in)
7920ce38 1347. (bfd *, void *, void *);
252b5132 1348.
dc810e39 1349. unsigned int (*_bfd_coff_swap_aux_out)
7920ce38 1350. (bfd *, void *, int, int, int, int, void *);
252b5132 1351.
dc810e39 1352. unsigned int (*_bfd_coff_swap_sym_out)
7920ce38 1353. (bfd *, void *, void *);
252b5132 1354.
dc810e39 1355. unsigned int (*_bfd_coff_swap_lineno_out)
7920ce38 1356. (bfd *, void *, void *);
252b5132 1357.
dc810e39 1358. unsigned int (*_bfd_coff_swap_reloc_out)
7920ce38 1359. (bfd *, void *, void *);
252b5132 1360.
dc810e39 1361. unsigned int (*_bfd_coff_swap_filehdr_out)
7920ce38 1362. (bfd *, void *, void *);
252b5132 1363.
dc810e39 1364. unsigned int (*_bfd_coff_swap_aouthdr_out)
7920ce38 1365. (bfd *, void *, void *);
252b5132 1366.
dc810e39 1367. unsigned int (*_bfd_coff_swap_scnhdr_out)
7920ce38 1368. (bfd *, void *, void *);
252b5132 1369.
dc810e39
AM
1370. unsigned int _bfd_filhsz;
1371. unsigned int _bfd_aoutsz;
1372. unsigned int _bfd_scnhsz;
1373. unsigned int _bfd_symesz;
1374. unsigned int _bfd_auxesz;
1375. unsigned int _bfd_relsz;
1376. unsigned int _bfd_linesz;
1377. unsigned int _bfd_filnmlen;
b34976b6 1378. bfd_boolean _bfd_coff_long_filenames;
88183869 1379.
b34976b6 1380. bfd_boolean _bfd_coff_long_section_names;
88183869
DK
1381. bfd_boolean (*_bfd_coff_set_long_section_names)
1382. (bfd *, int);
1383.
dc810e39 1384. unsigned int _bfd_coff_default_section_alignment_power;
b34976b6 1385. bfd_boolean _bfd_coff_force_symnames_in_strings;
dc810e39
AM
1386. unsigned int _bfd_coff_debug_string_prefix_length;
1387.
1388. void (*_bfd_coff_swap_filehdr_in)
7920ce38 1389. (bfd *, void *, void *);
dc810e39
AM
1390.
1391. void (*_bfd_coff_swap_aouthdr_in)
7920ce38 1392. (bfd *, void *, void *);
dc810e39
AM
1393.
1394. void (*_bfd_coff_swap_scnhdr_in)
7920ce38 1395. (bfd *, void *, void *);
dc810e39
AM
1396.
1397. void (*_bfd_coff_swap_reloc_in)
7920ce38 1398. (bfd *abfd, void *, void *);
dc810e39 1399.
b34976b6 1400. bfd_boolean (*_bfd_coff_bad_format_hook)
7920ce38 1401. (bfd *, void *);
dc810e39 1402.
b34976b6 1403. bfd_boolean (*_bfd_coff_set_arch_mach_hook)
7920ce38 1404. (bfd *, void *);
dc810e39 1405.
7920ce38
NC
1406. void * (*_bfd_coff_mkobject_hook)
1407. (bfd *, void *, void *);
dc810e39 1408.
b34976b6 1409. bfd_boolean (*_bfd_styp_to_sec_flags_hook)
7920ce38 1410. (bfd *, void *, const char *, asection *, flagword *);
dc810e39
AM
1411.
1412. void (*_bfd_set_alignment_hook)
7920ce38 1413. (bfd *, asection *, void *);
dc810e39 1414.
b34976b6 1415. bfd_boolean (*_bfd_coff_slurp_symbol_table)
7920ce38 1416. (bfd *);
dc810e39 1417.
b34976b6 1418. bfd_boolean (*_bfd_coff_symname_in_debug)
7920ce38 1419. (bfd *, struct internal_syment *);
dc810e39 1420.
b34976b6 1421. bfd_boolean (*_bfd_coff_pointerize_aux_hook)
7920ce38
NC
1422. (bfd *, combined_entry_type *, combined_entry_type *,
1423. unsigned int, combined_entry_type *);
dc810e39 1424.
b34976b6 1425. bfd_boolean (*_bfd_coff_print_aux)
7920ce38
NC
1426. (bfd *, FILE *, combined_entry_type *, combined_entry_type *,
1427. combined_entry_type *, unsigned int);
dc810e39
AM
1428.
1429. void (*_bfd_coff_reloc16_extra_cases)
7920ce38
NC
1430. (bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *,
1431. bfd_byte *, unsigned int *, unsigned int *);
dc810e39
AM
1432.
1433. int (*_bfd_coff_reloc16_estimate)
7920ce38
NC
1434. (bfd *, asection *, arelent *, unsigned int,
1435. struct bfd_link_info *);
dc810e39
AM
1436.
1437. enum coff_symbol_classification (*_bfd_coff_classify_symbol)
7920ce38 1438. (bfd *, struct internal_syment *);
dc810e39 1439.
b34976b6 1440. bfd_boolean (*_bfd_coff_compute_section_file_positions)
7920ce38 1441. (bfd *);
252b5132 1442.
b34976b6 1443. bfd_boolean (*_bfd_coff_start_final_link)
7920ce38 1444. (bfd *, struct bfd_link_info *);
dc810e39 1445.
b34976b6 1446. bfd_boolean (*_bfd_coff_relocate_section)
7920ce38
NC
1447. (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
1448. struct internal_reloc *, struct internal_syment *, asection **);
dc810e39
AM
1449.
1450. reloc_howto_type *(*_bfd_coff_rtype_to_howto)
7920ce38 1451. (bfd *, asection *, struct internal_reloc *,
dc810e39 1452. struct coff_link_hash_entry *, struct internal_syment *,
7920ce38 1453. bfd_vma *);
dc810e39 1454.
b34976b6 1455. bfd_boolean (*_bfd_coff_adjust_symndx)
7920ce38
NC
1456. (bfd *, struct bfd_link_info *, bfd *, asection *,
1457. struct internal_reloc *, bfd_boolean *);
dc810e39 1458.
b34976b6 1459. bfd_boolean (*_bfd_coff_link_add_one_symbol)
7920ce38 1460. (struct bfd_link_info *, bfd *, const char *, flagword,
b34976b6 1461. asection *, bfd_vma, const char *, bfd_boolean, bfd_boolean,
7920ce38 1462. struct bfd_link_hash_entry **);
dc810e39 1463.
b34976b6 1464. bfd_boolean (*_bfd_coff_link_output_has_begun)
7920ce38 1465. (bfd *, struct coff_final_link_info *);
dc810e39 1466.
b34976b6 1467. bfd_boolean (*_bfd_coff_final_link_postscript)
7920ce38 1468. (bfd *, struct coff_final_link_info *);
252b5132 1469.
2b5c217d
NC
1470. bfd_boolean (*_bfd_coff_print_pdata)
1471. (bfd *, void *);
1472.
252b5132
RH
1473.} bfd_coff_backend_data;
1474.
dc810e39
AM
1475.#define coff_backend_info(abfd) \
1476. ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
252b5132
RH
1477.
1478.#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \
dc810e39 1479. ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i))
252b5132
RH
1480.
1481.#define bfd_coff_swap_sym_in(a,e,i) \
dc810e39 1482. ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))
252b5132
RH
1483.
1484.#define bfd_coff_swap_lineno_in(a,e,i) \
dc810e39 1485. ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))
252b5132
RH
1486.
1487.#define bfd_coff_swap_reloc_out(abfd, i, o) \
dc810e39 1488. ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))
252b5132
RH
1489.
1490.#define bfd_coff_swap_lineno_out(abfd, i, o) \
dc810e39 1491. ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))
252b5132
RH
1492.
1493.#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \
dc810e39 1494. ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o))
252b5132
RH
1495.
1496.#define bfd_coff_swap_sym_out(abfd, i,o) \
dc810e39 1497. ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))
252b5132
RH
1498.
1499.#define bfd_coff_swap_scnhdr_out(abfd, i,o) \
dc810e39 1500. ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))
252b5132
RH
1501.
1502.#define bfd_coff_swap_filehdr_out(abfd, i,o) \
dc810e39 1503. ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))
252b5132
RH
1504.
1505.#define bfd_coff_swap_aouthdr_out(abfd, i,o) \
dc810e39 1506. ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
252b5132
RH
1507.
1508.#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
1509.#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
1510.#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
1511.#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
1512.#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
1513.#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz)
1514.#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
692b7d62 1515.#define bfd_coff_filnmlen(abfd) (coff_backend_info (abfd)->_bfd_filnmlen)
dc810e39
AM
1516.#define bfd_coff_long_filenames(abfd) \
1517. (coff_backend_info (abfd)->_bfd_coff_long_filenames)
252b5132 1518.#define bfd_coff_long_section_names(abfd) \
dc810e39 1519. (coff_backend_info (abfd)->_bfd_coff_long_section_names)
88183869
DK
1520.#define bfd_coff_set_long_section_names(abfd, enable) \
1521. ((coff_backend_info (abfd)->_bfd_coff_set_long_section_names) (abfd, enable))
252b5132 1522.#define bfd_coff_default_section_alignment_power(abfd) \
dc810e39 1523. (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power)
252b5132 1524.#define bfd_coff_swap_filehdr_in(abfd, i,o) \
dc810e39 1525. ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
252b5132
RH
1526.
1527.#define bfd_coff_swap_aouthdr_in(abfd, i,o) \
dc810e39 1528. ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))
252b5132
RH
1529.
1530.#define bfd_coff_swap_scnhdr_in(abfd, i,o) \
dc810e39 1531. ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
252b5132
RH
1532.
1533.#define bfd_coff_swap_reloc_in(abfd, i, o) \
dc810e39 1534. ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))
252b5132
RH
1535.
1536.#define bfd_coff_bad_format_hook(abfd, filehdr) \
dc810e39 1537. ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
252b5132
RH
1538.
1539.#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
dc810e39 1540. ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
252b5132 1541.#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\
ed781d5d
NC
1542. ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook)\
1543. (abfd, filehdr, aouthdr))
252b5132 1544.
7c8ca0e4 1545.#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section, flags_ptr)\
dc810e39
AM
1546. ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\
1547. (abfd, scnhdr, name, section, flags_ptr))
252b5132
RH
1548.
1549.#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
dc810e39 1550. ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
252b5132
RH
1551.
1552.#define bfd_coff_slurp_symbol_table(abfd)\
dc810e39 1553. ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))
252b5132
RH
1554.
1555.#define bfd_coff_symname_in_debug(abfd, sym)\
dc810e39 1556. ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
252b5132 1557.
2243c419 1558.#define bfd_coff_force_symnames_in_strings(abfd)\
dc810e39 1559. (coff_backend_info (abfd)->_bfd_coff_force_symnames_in_strings)
2243c419
CP
1560.
1561.#define bfd_coff_debug_string_prefix_length(abfd)\
dc810e39 1562. (coff_backend_info (abfd)->_bfd_coff_debug_string_prefix_length)
2243c419 1563.
252b5132 1564.#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\
dc810e39
AM
1565. ((coff_backend_info (abfd)->_bfd_coff_print_aux)\
1566. (abfd, file, base, symbol, aux, indaux))
252b5132 1567.
ed781d5d
NC
1568.#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order,\
1569. reloc, data, src_ptr, dst_ptr)\
dc810e39
AM
1570. ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
1571. (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))
252b5132
RH
1572.
1573.#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\
dc810e39
AM
1574. ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
1575. (abfd, section, reloc, shrink, link_info))
252b5132 1576.
5d54c628 1577.#define bfd_coff_classify_symbol(abfd, sym)\
dc810e39
AM
1578. ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\
1579. (abfd, sym))
252b5132
RH
1580.
1581.#define bfd_coff_compute_section_file_positions(abfd)\
dc810e39
AM
1582. ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
1583. (abfd))
252b5132
RH
1584.
1585.#define bfd_coff_start_final_link(obfd, info)\
dc810e39
AM
1586. ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\
1587. (obfd, info))
252b5132 1588.#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
dc810e39
AM
1589. ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
1590. (obfd, info, ibfd, o, con, rel, isyms, secs))
252b5132 1591.#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\
dc810e39
AM
1592. ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\
1593. (abfd, sec, rel, h, sym, addendp))
252b5132 1594.#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\
dc810e39
AM
1595. ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\
1596. (obfd, info, ibfd, sec, rel, adjustedp))
ed781d5d
NC
1597.#define bfd_coff_link_add_one_symbol(info, abfd, name, flags, section,\
1598. value, string, cp, coll, hashp)\
dc810e39
AM
1599. ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\
1600. (info, abfd, name, flags, section, value, string, cp, coll, hashp))
252b5132
RH
1601.
1602.#define bfd_coff_link_output_has_begun(a,p) \
7920ce38 1603. ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a, p))
252b5132 1604.#define bfd_coff_final_link_postscript(a,p) \
7920ce38 1605. ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a, p))
252b5132 1606.
2b5c217d
NC
1607.#define bfd_coff_have_print_pdata(a) \
1608. (coff_backend_info (a)->_bfd_coff_print_pdata)
1609.#define bfd_coff_print_pdata(a,p) \
1610. ((coff_backend_info (a)->_bfd_coff_print_pdata) (a, p))
1611.
92dd4511
L
1612.{* Macro: Returns true if the bfd is a PE executable as opposed to a
1613. PE object file. *}
1614.#define bfd_pei_p(abfd) \
1615. (CONST_STRNEQ ((abfd)->xvec->name, "pei-"))
252b5132
RH
1616*/
1617
1618/* See whether the magic number matches. */
1619
b34976b6 1620static bfd_boolean
7920ce38 1621coff_bad_format_hook (bfd * abfd ATTRIBUTE_UNUSED, void * filehdr)
252b5132
RH
1622{
1623 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1624
1625 if (BADMAG (*internal_f))
b34976b6 1626 return FALSE;
252b5132 1627
ed781d5d 1628 /* If the optional header is NULL or not the correct size then
252b5132
RH
1629 quit; the only difference I can see between m88k dgux headers (MC88DMAGIC)
1630 and Intel 960 readwrite headers (I960WRMAGIC) is that the
1631 optional header is of a different size.
1632
1633 But the mips keeps extra stuff in it's opthdr, so dont check
ed781d5d 1634 when doing that. */
252b5132
RH
1635
1636#if defined(M88) || defined(I960)
6b3b007b 1637 if (internal_f->f_opthdr != 0 && bfd_coff_aoutsz (abfd) != internal_f->f_opthdr)
b34976b6 1638 return FALSE;
252b5132
RH
1639#endif
1640
b34976b6 1641 return TRUE;
252b5132
RH
1642}
1643
5a5b9651
SS
1644#ifdef TICOFF
1645static bfd_boolean
7920ce38 1646ticoff0_bad_format_hook (bfd *abfd ATTRIBUTE_UNUSED, void * filehdr)
5a5b9651
SS
1647{
1648 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1649
1650 if (COFF0_BADMAG (*internal_f))
1651 return FALSE;
1652
1653 return TRUE;
1654}
1655#endif
1656
1657#ifdef TICOFF
1658static bfd_boolean
7920ce38 1659ticoff1_bad_format_hook (bfd *abfd ATTRIBUTE_UNUSED, void * filehdr)
5a5b9651
SS
1660{
1661 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1662
1663 if (COFF1_BADMAG (*internal_f))
1664 return FALSE;
1665
1666 return TRUE;
1667}
1668#endif
1669
5dccc1dd
ILT
1670/* Check whether this section uses an alignment other than the
1671 default. */
1672
1673static void
7920ce38
NC
1674coff_set_custom_section_alignment (bfd *abfd ATTRIBUTE_UNUSED,
1675 asection *section,
1676 const struct coff_section_alignment_entry *alignment_table,
1677 const unsigned int table_size)
5dccc1dd
ILT
1678{
1679 const unsigned int default_alignment = COFF_DEFAULT_SECTION_ALIGNMENT_POWER;
1680 unsigned int i;
1681
1682 for (i = 0; i < table_size; ++i)
1683 {
1684 const char *secname = bfd_get_section_name (abfd, section);
ed781d5d 1685
5dccc1dd
ILT
1686 if (alignment_table[i].comparison_length == (unsigned int) -1
1687 ? strcmp (alignment_table[i].name, secname) == 0
1688 : strncmp (alignment_table[i].name, secname,
1689 alignment_table[i].comparison_length) == 0)
1690 break;
1691 }
1692 if (i >= table_size)
1693 return;
1694
1695 if (alignment_table[i].default_alignment_min != COFF_ALIGNMENT_FIELD_EMPTY
1696 && default_alignment < alignment_table[i].default_alignment_min)
1697 return;
1698
1699 if (alignment_table[i].default_alignment_max != COFF_ALIGNMENT_FIELD_EMPTY
1e738b87
NC
1700#if COFF_DEFAULT_SECTION_ALIGNMENT_POWER != 0
1701 && default_alignment > alignment_table[i].default_alignment_max
1702#endif
1703 )
5dccc1dd
ILT
1704 return;
1705
1706 section->alignment_power = alignment_table[i].alignment_power;
1707}
1708
1709/* Custom section alignment records. */
1710
1711static const struct coff_section_alignment_entry
1712coff_section_alignment_table[] =
1713{
1714#ifdef COFF_SECTION_ALIGNMENT_ENTRIES
1715 COFF_SECTION_ALIGNMENT_ENTRIES,
1716#endif
1717 /* There must not be any gaps between .stabstr sections. */
1718 { COFF_SECTION_NAME_PARTIAL_MATCH (".stabstr"),
1719 1, COFF_ALIGNMENT_FIELD_EMPTY, 0 },
1720 /* The .stab section must be aligned to 2**2 at most, to avoid gaps. */
1721 { COFF_SECTION_NAME_PARTIAL_MATCH (".stab"),
1722 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 },
1723 /* Similarly for the .ctors and .dtors sections. */
1724 { COFF_SECTION_NAME_EXACT_MATCH (".ctors"),
1725 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 },
1726 { COFF_SECTION_NAME_EXACT_MATCH (".dtors"),
1727 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 }
1728};
1729
1730static const unsigned int coff_section_alignment_table_size =
1731 sizeof coff_section_alignment_table / sizeof coff_section_alignment_table[0];
1732
1733/* Initialize a section structure with information peculiar to this
1734 particular implementation of COFF. */
252b5132 1735
b34976b6 1736static bfd_boolean
7920ce38 1737coff_new_section_hook (bfd * abfd, asection * section)
252b5132
RH
1738{
1739 combined_entry_type *native;
dc810e39 1740 bfd_size_type amt;
85645aed 1741 unsigned char sclass = C_STAT;
252b5132
RH
1742
1743 section->alignment_power = COFF_DEFAULT_SECTION_ALIGNMENT_POWER;
1744
1745#ifdef RS6000COFF_C
eb1e0e80 1746 if (bfd_xcoff_text_align_power (abfd) != 0
252b5132 1747 && strcmp (bfd_get_section_name (abfd, section), ".text") == 0)
eb1e0e80 1748 section->alignment_power = bfd_xcoff_text_align_power (abfd);
85645aed 1749 else if (bfd_xcoff_data_align_power (abfd) != 0
252b5132 1750 && strcmp (bfd_get_section_name (abfd, section), ".data") == 0)
eb1e0e80 1751 section->alignment_power = bfd_xcoff_data_align_power (abfd);
85645aed
TG
1752 else
1753 {
1754 int i;
1755
1756 for (i = 0; i < XCOFF_DWSECT_NBR_NAMES; i++)
1757 if (strcmp (bfd_get_section_name (abfd, section),
1758 xcoff_dwsect_names[i].name) == 0)
1759 {
1760 section->alignment_power = 0;
1761 sclass = C_DWARF;
1762 break;
1763 }
1764 }
252b5132
RH
1765#endif
1766
f592407e
AM
1767 /* Set up the section symbol. */
1768 if (!_bfd_generic_new_section_hook (abfd, section))
1769 return FALSE;
1770
252b5132
RH
1771 /* Allocate aux records for section symbols, to store size and
1772 related info.
1773
1774 @@ The 10 is a guess at a plausible maximum number of aux entries
1775 (but shouldn't be a constant). */
dc810e39 1776 amt = sizeof (combined_entry_type) * 10;
a50b1753 1777 native = (combined_entry_type *) bfd_zalloc (abfd, amt);
252b5132 1778 if (native == NULL)
b34976b6 1779 return FALSE;
252b5132
RH
1780
1781 /* We don't need to set up n_name, n_value, or n_scnum in the native
5c4491d3 1782 symbol information, since they'll be overridden by the BFD symbol
252b5132
RH
1783 anyhow. However, we do need to set the type and storage class,
1784 in case this symbol winds up getting written out. The value 0
1785 for n_numaux is already correct. */
1786
1787 native->u.syment.n_type = T_NULL;
85645aed 1788 native->u.syment.n_sclass = sclass;
252b5132
RH
1789
1790 coffsymbol (section->symbol)->native = native;
1791
5dccc1dd
ILT
1792 coff_set_custom_section_alignment (abfd, section,
1793 coff_section_alignment_table,
1794 coff_section_alignment_table_size);
252b5132 1795
b34976b6 1796 return TRUE;
252b5132
RH
1797}
1798
1799#ifdef COFF_ALIGN_IN_SECTION_HEADER
1800
1801/* Set the alignment of a BFD section. */
1802
252b5132 1803static void
7920ce38
NC
1804coff_set_alignment_hook (bfd * abfd ATTRIBUTE_UNUSED,
1805 asection * section,
1806 void * scnhdr)
252b5132
RH
1807{
1808 struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
1809 unsigned int i;
1810
1811#ifdef I960
ed781d5d 1812 /* Extract ALIGN from 2**ALIGN stored in section header. */
252b5132
RH
1813 for (i = 0; i < 32; i++)
1814 if ((1 << i) >= hdr->s_align)
1815 break;
1816#endif
1817#ifdef TIC80COFF
ed781d5d 1818 /* TI tools puts the alignment power in bits 8-11. */
252b5132 1819 i = (hdr->s_flags >> 8) & 0xF ;
81635ce4
TW
1820#endif
1821#ifdef COFF_DECODE_ALIGNMENT
1822 i = COFF_DECODE_ALIGNMENT(hdr->s_flags);
252b5132
RH
1823#endif
1824 section->alignment_power = i;
b9af77f5
TW
1825
1826#ifdef coff_set_section_load_page
1827 coff_set_section_load_page (section, hdr->s_page);
1828#endif
252b5132
RH
1829}
1830
1831#else /* ! COFF_ALIGN_IN_SECTION_HEADER */
1832#ifdef COFF_WITH_PE
1833
252b5132 1834static void
7920ce38
NC
1835coff_set_alignment_hook (bfd * abfd ATTRIBUTE_UNUSED,
1836 asection * section,
1837 void * scnhdr)
252b5132
RH
1838{
1839 struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
dc810e39 1840 bfd_size_type amt;
bd33be6e
L
1841 unsigned int alignment_power_const
1842 = hdr->s_flags & IMAGE_SCN_ALIGN_POWER_BIT_MASK;
252b5132 1843
bd33be6e
L
1844 switch (alignment_power_const)
1845 {
1846 case IMAGE_SCN_ALIGN_8192BYTES:
1847 case IMAGE_SCN_ALIGN_4096BYTES:
1848 case IMAGE_SCN_ALIGN_2048BYTES:
1849 case IMAGE_SCN_ALIGN_1024BYTES:
1850 case IMAGE_SCN_ALIGN_512BYTES:
1851 case IMAGE_SCN_ALIGN_256BYTES:
1852 case IMAGE_SCN_ALIGN_128BYTES:
1853 case IMAGE_SCN_ALIGN_64BYTES:
1854 case IMAGE_SCN_ALIGN_32BYTES:
1855 case IMAGE_SCN_ALIGN_16BYTES:
1856 case IMAGE_SCN_ALIGN_8BYTES:
1857 case IMAGE_SCN_ALIGN_4BYTES:
1858 case IMAGE_SCN_ALIGN_2BYTES:
1859 case IMAGE_SCN_ALIGN_1BYTES:
1860 section->alignment_power
1861 = IMAGE_SCN_ALIGN_POWER_NUM (alignment_power_const);
1862 break;
1863 default:
1864 break;
1865 }
252b5132 1866
252b5132 1867 /* In a PE image file, the s_paddr field holds the virtual size of a
8d3ad4e1
ILT
1868 section, while the s_size field holds the raw size. We also keep
1869 the original section flag value, since not every bit can be
1870 mapped onto a generic BFD section bit. */
1871 if (coff_section_data (abfd, section) == NULL)
252b5132 1872 {
dc810e39 1873 amt = sizeof (struct coff_section_tdata);
7920ce38 1874 section->used_by_bfd = bfd_zalloc (abfd, amt);
8d3ad4e1 1875 if (section->used_by_bfd == NULL)
7920ce38
NC
1876 /* FIXME: Return error. */
1877 abort ();
8d3ad4e1 1878 }
7920ce38 1879
8d3ad4e1
ILT
1880 if (pei_section_data (abfd, section) == NULL)
1881 {
dc810e39 1882 amt = sizeof (struct pei_section_tdata);
7920ce38 1883 coff_section_data (abfd, section)->tdata = bfd_zalloc (abfd, amt);
8d3ad4e1 1884 if (coff_section_data (abfd, section)->tdata == NULL)
7920ce38
NC
1885 /* FIXME: Return error. */
1886 abort ();
252b5132 1887 }
8d3ad4e1
ILT
1888 pei_section_data (abfd, section)->virt_size = hdr->s_paddr;
1889 pei_section_data (abfd, section)->pe_flags = hdr->s_flags;
252b5132 1890
9d8cefa9 1891 section->lma = hdr->s_vaddr;
3e4554a2 1892
ed781d5d 1893 /* Check for extended relocs. */
3e4554a2
DD
1894 if (hdr->s_flags & IMAGE_SCN_LNK_NRELOC_OVFL)
1895 {
1896 struct external_reloc dst;
57f3d89e 1897 struct internal_reloc n;
dc810e39 1898 file_ptr oldpos = bfd_tell (abfd);
cd339148 1899 bfd_size_type relsz = bfd_coff_relsz (abfd);
46f2f11d 1900
b42adabf
NC
1901 if (bfd_seek (abfd, (file_ptr) hdr->s_relptr, 0) != 0)
1902 return;
7920ce38 1903 if (bfd_bread (& dst, relsz, abfd) != relsz)
3e4554a2 1904 return;
e60b52c6 1905
3e4554a2 1906 coff_swap_reloc_in (abfd, &dst, &n);
b42adabf
NC
1907 if (bfd_seek (abfd, oldpos, 0) != 0)
1908 return;
cd339148
NS
1909 section->reloc_count = hdr->s_nreloc = n.r_vaddr - 1;
1910 section->rel_filepos += relsz;
3e4554a2 1911 }
cd339148
NS
1912 else if (hdr->s_nreloc == 0xffff)
1913 (*_bfd_error_handler)
1914 ("%s: warning: claims to have 0xffff relocs, without overflow",
1915 bfd_get_filename (abfd));
252b5132
RH
1916}
1917#undef ALIGN_SET
1918#undef ELIFALIGN_SET
1919
1920#else /* ! COFF_WITH_PE */
1921#ifdef RS6000COFF_C
1922
1923/* We grossly abuse this function to handle XCOFF overflow headers.
1924 When we see one, we correct the reloc and line number counts in the
1925 real header, and remove the section we just created. */
1926
252b5132 1927static void
7920ce38 1928coff_set_alignment_hook (bfd *abfd, asection *section, void * scnhdr)
252b5132
RH
1929{
1930 struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
1931 asection *real_sec;
252b5132
RH
1932
1933 if ((hdr->s_flags & STYP_OVRFLO) == 0)
1934 return;
1935
dc810e39 1936 real_sec = coff_section_from_bfd_index (abfd, (int) hdr->s_nreloc);
252b5132
RH
1937 if (real_sec == NULL)
1938 return;
1939
1940 real_sec->reloc_count = hdr->s_paddr;
1941 real_sec->lineno_count = hdr->s_vaddr;
1942
5daa8fe7 1943 if (!bfd_section_removed_from_list (abfd, section))
252b5132 1944 {
5daa8fe7
L
1945 bfd_section_list_remove (abfd, section);
1946 --abfd->section_count;
252b5132
RH
1947 }
1948}
1949
1950#else /* ! RS6000COFF_C */
1951
1952#define coff_set_alignment_hook \
7920ce38 1953 ((void (*) (bfd *, asection *, void *)) bfd_void)
252b5132
RH
1954
1955#endif /* ! RS6000COFF_C */
1956#endif /* ! COFF_WITH_PE */
1957#endif /* ! COFF_ALIGN_IN_SECTION_HEADER */
1958
1959#ifndef coff_mkobject
1960
b34976b6 1961static bfd_boolean
7920ce38 1962coff_mkobject (bfd * abfd)
252b5132
RH
1963{
1964 coff_data_type *coff;
dc810e39 1965 bfd_size_type amt = sizeof (coff_data_type);
252b5132 1966
7920ce38
NC
1967 abfd->tdata.coff_obj_data = bfd_zalloc (abfd, amt);
1968 if (abfd->tdata.coff_obj_data == NULL)
b34976b6 1969 return FALSE;
252b5132 1970 coff = coff_data (abfd);
7920ce38
NC
1971 coff->symbols = NULL;
1972 coff->conversion_table = NULL;
1973 coff->raw_syments = NULL;
252b5132
RH
1974 coff->relocbase = 0;
1975 coff->local_toc_sym_map = 0;
1976
1977/* make_abs_section(abfd);*/
1978
b34976b6 1979 return TRUE;
252b5132
RH
1980}
1981#endif
1982
1983/* Create the COFF backend specific information. */
ed781d5d 1984
252b5132 1985#ifndef coff_mkobject_hook
7920ce38
NC
1986static void *
1987coff_mkobject_hook (bfd * abfd,
1988 void * filehdr,
1989 void * aouthdr ATTRIBUTE_UNUSED)
252b5132
RH
1990{
1991 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1992 coff_data_type *coff;
1993
82e51918 1994 if (! coff_mkobject (abfd))
252b5132
RH
1995 return NULL;
1996
1997 coff = coff_data (abfd);
1998
1999 coff->sym_filepos = internal_f->f_symptr;
2000
2001 /* These members communicate important constants about the symbol
2002 table to GDB's symbol-reading code. These `constants'
2003 unfortunately vary among coff implementations... */
2004 coff->local_n_btmask = N_BTMASK;
2005 coff->local_n_btshft = N_BTSHFT;
2006 coff->local_n_tmask = N_TMASK;
2007 coff->local_n_tshift = N_TSHIFT;
6b3b007b
NC
2008 coff->local_symesz = bfd_coff_symesz (abfd);
2009 coff->local_auxesz = bfd_coff_auxesz (abfd);
2010 coff->local_linesz = bfd_coff_linesz (abfd);
252b5132 2011
1135238b
ILT
2012 coff->timestamp = internal_f->f_timdat;
2013
252b5132
RH
2014 obj_raw_syment_count (abfd) =
2015 obj_conv_table_size (abfd) =
2016 internal_f->f_nsyms;
2017
2018#ifdef RS6000COFF_C
2019 if ((internal_f->f_flags & F_SHROBJ) != 0)
2020 abfd->flags |= DYNAMIC;
6b3b007b 2021 if (aouthdr != NULL && internal_f->f_opthdr >= bfd_coff_aoutsz (abfd))
252b5132
RH
2022 {
2023 struct internal_aouthdr *internal_a =
2024 (struct internal_aouthdr *) aouthdr;
2025 struct xcoff_tdata *xcoff;
2026
2027 xcoff = xcoff_data (abfd);
a2fdf270
ND
2028# ifdef U803XTOCMAGIC
2029 xcoff->xcoff64 = internal_f->f_magic == U803XTOCMAGIC;
2030# else
2031 xcoff->xcoff64 = 0;
2032# endif
b34976b6 2033 xcoff->full_aouthdr = TRUE;
252b5132
RH
2034 xcoff->toc = internal_a->o_toc;
2035 xcoff->sntoc = internal_a->o_sntoc;
2036 xcoff->snentry = internal_a->o_snentry;
f3813499
TR
2037 bfd_xcoff_text_align_power (abfd) = internal_a->o_algntext;
2038 bfd_xcoff_data_align_power (abfd) = internal_a->o_algndata;
252b5132
RH
2039 xcoff->modtype = internal_a->o_modtype;
2040 xcoff->cputype = internal_a->o_cputype;
2041 xcoff->maxdata = internal_a->o_maxdata;
2042 xcoff->maxstack = internal_a->o_maxstack;
2043 }
2044#endif
2045
e60b52c6 2046#ifdef ARM
f13b834e 2047 /* Set the flags field from the COFF header read in. */
252b5132
RH
2048 if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags))
2049 coff->flags = 0;
2050#endif
e60b52c6 2051
4cfec37b
ILT
2052#ifdef COFF_WITH_PE
2053 /* FIXME: I'm not sure this is ever executed, since peicode.h
2054 defines coff_mkobject_hook. */
2055 if ((internal_f->f_flags & IMAGE_FILE_DEBUG_STRIPPED) == 0)
2056 abfd->flags |= HAS_DEBUG;
2057#endif
2058
9bf609ec
JK
2059 if ((internal_f->f_flags & F_GO32STUB) != 0)
2060 coff->go32stub = (char *) bfd_alloc (abfd, (bfd_size_type) GO32_STUBSIZE);
2061 if (coff->go32stub != NULL)
2062 memcpy (coff->go32stub, internal_f->go32stub, GO32_STUBSIZE);
2063
7920ce38 2064 return coff;
252b5132
RH
2065}
2066#endif
2067
2068/* Determine the machine architecture and type. FIXME: This is target
2069 dependent because the magic numbers are defined in the target
2070 dependent header files. But there is no particular need for this.
2071 If the magic numbers were moved to a separate file, this function
2072 would be target independent and would also be much more successful
2073 at linking together COFF files for different architectures. */
2074
b34976b6 2075static bfd_boolean
7920ce38 2076coff_set_arch_mach_hook (bfd *abfd, void * filehdr)
252b5132 2077{
dc810e39 2078 unsigned long machine;
252b5132
RH
2079 enum bfd_architecture arch;
2080 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
2081
250d94fd 2082 /* Zero selects the default machine for an arch. */
252b5132
RH
2083 machine = 0;
2084 switch (internal_f->f_magic)
2085 {
3b16e843
NC
2086#ifdef OR32_MAGIC_BIG
2087 case OR32_MAGIC_BIG:
2088 case OR32_MAGIC_LITTLE:
2089 arch = bfd_arch_or32;
3b16e843
NC
2090 break;
2091#endif
252b5132
RH
2092#ifdef PPCMAGIC
2093 case PPCMAGIC:
2094 arch = bfd_arch_powerpc;
e60b52c6 2095 break;
252b5132
RH
2096#endif
2097#ifdef I386MAGIC
2098 case I386MAGIC:
2099 case I386PTXMAGIC:
99ad8390
NC
2100 case I386AIXMAGIC: /* Danbury PS/2 AIX C Compiler. */
2101 case LYNXCOFFMAGIC: /* Shadows the m68k Lynx number below, sigh. */
252b5132 2102 arch = bfd_arch_i386;
252b5132
RH
2103 break;
2104#endif
99ad8390
NC
2105#ifdef AMD64MAGIC
2106 case AMD64MAGIC:
2107 arch = bfd_arch_i386;
2108 machine = bfd_mach_x86_64;
2109 break;
2110#endif
fac41780
JW
2111#ifdef IA64MAGIC
2112 case IA64MAGIC:
2113 arch = bfd_arch_ia64;
fac41780
JW
2114 break;
2115#endif
252b5132
RH
2116#ifdef ARMMAGIC
2117 case ARMMAGIC:
17505c5c
NC
2118 case ARMPEMAGIC:
2119 case THUMBPEMAGIC:
252b5132 2120 arch = bfd_arch_arm;
5a6c6817
NC
2121 machine = bfd_arm_get_mach_from_notes (abfd, ARM_NOTE_SECTION);
2122 if (machine == bfd_mach_arm_unknown)
252b5132 2123 {
5a6c6817
NC
2124 switch (internal_f->f_flags & F_ARM_ARCHITECTURE_MASK)
2125 {
2126 case F_ARM_2: machine = bfd_mach_arm_2; break;
2127 case F_ARM_2a: machine = bfd_mach_arm_2a; break;
2128 case F_ARM_3: machine = bfd_mach_arm_3; break;
2129 default:
2130 case F_ARM_3M: machine = bfd_mach_arm_3M; break;
2131 case F_ARM_4: machine = bfd_mach_arm_4; break;
2132 case F_ARM_4T: machine = bfd_mach_arm_4T; break;
2133 /* The COFF header does not have enough bits available
2134 to cover all the different ARM architectures. So
2135 we interpret F_ARM_5, the highest flag value to mean
2136 "the highest ARM architecture known to BFD" which is
2137 currently the XScale. */
2138 case F_ARM_5: machine = bfd_mach_arm_XScale; break;
2139 }
252b5132
RH
2140 }
2141 break;
2142#endif
2143#ifdef MC68MAGIC
2144 case MC68MAGIC:
2145 case M68MAGIC:
2146#ifdef MC68KBCSMAGIC
2147 case MC68KBCSMAGIC:
2148#endif
2149#ifdef APOLLOM68KMAGIC
2150 case APOLLOM68KMAGIC:
2151#endif
2152#ifdef LYNXCOFFMAGIC
2153 case LYNXCOFFMAGIC:
2154#endif
2155 arch = bfd_arch_m68k;
2156 machine = bfd_mach_m68020;
2157 break;
2158#endif
2159#ifdef MC88MAGIC
2160 case MC88MAGIC:
2161 case MC88DMAGIC:
2162 case MC88OMAGIC:
2163 arch = bfd_arch_m88k;
2164 machine = 88100;
2165 break;
2166#endif
3c9b82ba
NC
2167#ifdef Z80MAGIC
2168 case Z80MAGIC:
2169 arch = bfd_arch_z80;
2170 switch (internal_f->f_flags & F_MACHMASK)
2171 {
2172 case 0:
2173 case bfd_mach_z80strict << 12:
2174 case bfd_mach_z80 << 12:
2175 case bfd_mach_z80full << 12:
2176 case bfd_mach_r800 << 12:
2177 machine = ((unsigned)internal_f->f_flags & F_MACHMASK) >> 12;
2178 break;
2179 default:
2180 return FALSE;
2181 }
2182 break;
2183#endif
252b5132
RH
2184#ifdef Z8KMAGIC
2185 case Z8KMAGIC:
2186 arch = bfd_arch_z8k;
2187 switch (internal_f->f_flags & F_MACHMASK)
2188 {
2189 case F_Z8001:
2190 machine = bfd_mach_z8001;
2191 break;
2192 case F_Z8002:
2193 machine = bfd_mach_z8002;
2194 break;
2195 default:
b34976b6 2196 return FALSE;
252b5132
RH
2197 }
2198 break;
2199#endif
2200#ifdef I860
2201 case I860MAGIC:
2202 arch = bfd_arch_i860;
2203 break;
2204#endif
2205#ifdef I960
2206#ifdef I960ROMAGIC
2207 case I960ROMAGIC:
2208 case I960RWMAGIC:
2209 arch = bfd_arch_i960;
2210 switch (F_I960TYPE & internal_f->f_flags)
2211 {
2212 default:
2213 case F_I960CORE:
2214 machine = bfd_mach_i960_core;
2215 break;
2216 case F_I960KB:
2217 machine = bfd_mach_i960_kb_sb;
2218 break;
2219 case F_I960MC:
2220 machine = bfd_mach_i960_mc;
2221 break;
2222 case F_I960XA:
2223 machine = bfd_mach_i960_xa;
2224 break;
2225 case F_I960CA:
2226 machine = bfd_mach_i960_ca;
2227 break;
2228 case F_I960KA:
2229 machine = bfd_mach_i960_ka_sa;
2230 break;
2231 case F_I960JX:
2232 machine = bfd_mach_i960_jx;
2233 break;
2234 case F_I960HX:
2235 machine = bfd_mach_i960_hx;
2236 break;
2237 }
2238 break;
2239#endif
2240#endif
2241
2242#ifdef RS6000COFF_C
7f6d05e8 2243#ifdef XCOFF64
eb1e0e80 2244 case U64_TOCMAGIC:
c6664dfb 2245 case U803XTOCMAGIC:
7f6d05e8 2246#else
252b5132
RH
2247 case U802ROMAGIC:
2248 case U802WRMAGIC:
2249 case U802TOCMAGIC:
7f6d05e8 2250#endif
252b5132
RH
2251 {
2252 int cputype;
2253
2254 if (xcoff_data (abfd)->cputype != -1)
2255 cputype = xcoff_data (abfd)->cputype & 0xff;
2256 else
2257 {
2258 /* We did not get a value from the a.out header. If the
2259 file has not been stripped, we may be able to get the
2260 architecture information from the first symbol, if it
2261 is a .file symbol. */
2262 if (obj_raw_syment_count (abfd) == 0)
2263 cputype = 0;
2264 else
2265 {
5ea1af0d 2266 bfd_byte *buf;
252b5132 2267 struct internal_syment sym;
dc810e39 2268 bfd_size_type amt = bfd_coff_symesz (abfd);
252b5132 2269
7920ce38 2270 buf = bfd_malloc (amt);
252b5132 2271 if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0
dc810e39 2272 || bfd_bread (buf, amt, abfd) != amt)
5ea1af0d 2273 {
2fca4467 2274 free (buf);
b34976b6 2275 return FALSE;
5ea1af0d 2276 }
7920ce38 2277 bfd_coff_swap_sym_in (abfd, buf, & sym);
252b5132
RH
2278 if (sym.n_sclass == C_FILE)
2279 cputype = sym.n_type & 0xff;
2280 else
2281 cputype = 0;
2fca4467 2282 free (buf);
252b5132
RH
2283 }
2284 }
2285
2286 /* FIXME: We don't handle all cases here. */
2287 switch (cputype)
2288 {
2289 default:
2290 case 0:
beb1bf64
TR
2291 arch = bfd_xcoff_architecture (abfd);
2292 machine = bfd_xcoff_machine (abfd);
252b5132
RH
2293 break;
2294
2295 case 1:
2296 arch = bfd_arch_powerpc;
87f33987 2297 machine = bfd_mach_ppc_601;
252b5132
RH
2298 break;
2299 case 2: /* 64 bit PowerPC */
2300 arch = bfd_arch_powerpc;
87f33987 2301 machine = bfd_mach_ppc_620;
252b5132
RH
2302 break;
2303 case 3:
2304 arch = bfd_arch_powerpc;
87f33987 2305 machine = bfd_mach_ppc;
252b5132
RH
2306 break;
2307 case 4:
2308 arch = bfd_arch_rs6000;
87f33987 2309 machine = bfd_mach_rs6k;
252b5132
RH
2310 break;
2311 }
2312 }
2313 break;
2314#endif
2315
2316#ifdef WE32KMAGIC
2317 case WE32KMAGIC:
2318 arch = bfd_arch_we32k;
252b5132
RH
2319 break;
2320#endif
2321
2322#ifdef H8300MAGIC
2323 case H8300MAGIC:
2324 arch = bfd_arch_h8300;
2325 machine = bfd_mach_h8300;
8d9cd6b1 2326 /* !! FIXME this probably isn't the right place for this. */
252b5132
RH
2327 abfd->flags |= BFD_IS_RELAXABLE;
2328 break;
2329#endif
2330
2331#ifdef H8300HMAGIC
2332 case H8300HMAGIC:
2333 arch = bfd_arch_h8300;
2334 machine = bfd_mach_h8300h;
8d9cd6b1 2335 /* !! FIXME this probably isn't the right place for this. */
252b5132
RH
2336 abfd->flags |= BFD_IS_RELAXABLE;
2337 break;
2338#endif
2339
2340#ifdef H8300SMAGIC
2341 case H8300SMAGIC:
2342 arch = bfd_arch_h8300;
2343 machine = bfd_mach_h8300s;
8d9cd6b1
NC
2344 /* !! FIXME this probably isn't the right place for this. */
2345 abfd->flags |= BFD_IS_RELAXABLE;
2346 break;
2347#endif
2348
2349#ifdef H8300HNMAGIC
2350 case H8300HNMAGIC:
2351 arch = bfd_arch_h8300;
2352 machine = bfd_mach_h8300hn;
2353 /* !! FIXME this probably isn't the right place for this. */
2354 abfd->flags |= BFD_IS_RELAXABLE;
2355 break;
2356#endif
2357
2358#ifdef H8300SNMAGIC
2359 case H8300SNMAGIC:
2360 arch = bfd_arch_h8300;
2361 machine = bfd_mach_h8300sn;
2362 /* !! FIXME this probably isn't the right place for this. */
252b5132
RH
2363 abfd->flags |= BFD_IS_RELAXABLE;
2364 break;
2365#endif
2366
2367#ifdef SH_ARCH_MAGIC_BIG
2368 case SH_ARCH_MAGIC_BIG:
2369 case SH_ARCH_MAGIC_LITTLE:
17505c5c
NC
2370#ifdef COFF_WITH_PE
2371 case SH_ARCH_MAGIC_WINCE:
2372#endif
252b5132 2373 arch = bfd_arch_sh;
252b5132
RH
2374 break;
2375#endif
2376
17505c5c
NC
2377#ifdef MIPS_ARCH_MAGIC_WINCE
2378 case MIPS_ARCH_MAGIC_WINCE:
2379 arch = bfd_arch_mips;
17505c5c
NC
2380 break;
2381#endif
2382
252b5132
RH
2383#ifdef H8500MAGIC
2384 case H8500MAGIC:
2385 arch = bfd_arch_h8500;
252b5132
RH
2386 break;
2387#endif
2388
2389#ifdef SPARCMAGIC
2390 case SPARCMAGIC:
2391#ifdef LYNXCOFFMAGIC
2392 case LYNXCOFFMAGIC:
2393#endif
2394 arch = bfd_arch_sparc;
252b5132
RH
2395 break;
2396#endif
2397
2398#ifdef TIC30MAGIC
2399 case TIC30MAGIC:
2400 arch = bfd_arch_tic30;
2401 break;
2402#endif
2403
81635ce4
TW
2404#ifdef TICOFF0MAGIC
2405#ifdef TICOFF_TARGET_ARCH
ed781d5d 2406 /* This TI COFF section should be used by all new TI COFF v0 targets. */
81635ce4
TW
2407 case TICOFF0MAGIC:
2408 arch = TICOFF_TARGET_ARCH;
0da35f8b 2409 machine = TICOFF_TARGET_MACHINE_GET (internal_f->f_flags);
81635ce4
TW
2410 break;
2411#endif
2412#endif
2413
2414#ifdef TICOFF1MAGIC
ed781d5d
NC
2415 /* This TI COFF section should be used by all new TI COFF v1/2 targets. */
2416 /* TI COFF1 and COFF2 use the target_id field to specify which arch. */
81635ce4
TW
2417 case TICOFF1MAGIC:
2418 case TICOFF2MAGIC:
2419 switch (internal_f->f_target_id)
46f2f11d 2420 {
81635ce4 2421#ifdef TI_TARGET_ID
46f2f11d
AM
2422 case TI_TARGET_ID:
2423 arch = TICOFF_TARGET_ARCH;
0da35f8b 2424 machine = TICOFF_TARGET_MACHINE_GET (internal_f->f_flags);
46f2f11d
AM
2425 break;
2426#endif
2427 default:
2428 arch = bfd_arch_obscure;
2429 (*_bfd_error_handler)
2430 (_("Unrecognized TI COFF target id '0x%x'"),
2431 internal_f->f_target_id);
2432 break;
2433 }
81635ce4
TW
2434 break;
2435#endif
2436
252b5132
RH
2437#ifdef TIC80_ARCH_MAGIC
2438 case TIC80_ARCH_MAGIC:
2439 arch = bfd_arch_tic80;
2440 break;
2441#endif
2442
2443#ifdef MCOREMAGIC
2444 case MCOREMAGIC:
2445 arch = bfd_arch_mcore;
2446 break;
2447#endif
c8e48751
AM
2448
2449#ifdef W65MAGIC
2450 case W65MAGIC:
2451 arch = bfd_arch_w65;
2452 break;
2453#endif
2454
ed781d5d 2455 default: /* Unreadable input file type. */
252b5132
RH
2456 arch = bfd_arch_obscure;
2457 break;
2458 }
2459
2460 bfd_default_set_arch_mach (abfd, arch, machine);
b34976b6 2461 return TRUE;
252b5132
RH
2462}
2463
2464#ifdef SYMNAME_IN_DEBUG
2465
b34976b6 2466static bfd_boolean
7920ce38 2467symname_in_debug_hook (bfd * abfd ATTRIBUTE_UNUSED, struct internal_syment *sym)
252b5132 2468{
82e51918 2469 return SYMNAME_IN_DEBUG (sym) != 0;
252b5132
RH
2470}
2471
2472#else
2473
2474#define symname_in_debug_hook \
7920ce38 2475 (bfd_boolean (*) (bfd *, struct internal_syment *)) bfd_false
252b5132
RH
2476
2477#endif
2478
2479#ifdef RS6000COFF_C
2480
7f6d05e8
CP
2481#ifdef XCOFF64
2482#define FORCE_SYMNAMES_IN_STRINGS
2483#endif
a022216b 2484
8602d4fe 2485/* Handle the csect auxent of a C_EXT, C_AIX_WEAKEXT or C_HIDEXT symbol. */
252b5132 2486
b34976b6 2487static bfd_boolean
7920ce38
NC
2488coff_pointerize_aux_hook (bfd *abfd ATTRIBUTE_UNUSED,
2489 combined_entry_type *table_base,
2490 combined_entry_type *symbol,
2491 unsigned int indaux,
2492 combined_entry_type *aux)
252b5132 2493{
96d56e9f 2494 int n_sclass = symbol->u.syment.n_sclass;
252b5132 2495
96d56e9f 2496 if (CSECT_SYM_P (n_sclass)
252b5132
RH
2497 && indaux + 1 == symbol->u.syment.n_numaux)
2498 {
2499 if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) == XTY_LD)
2500 {
2501 aux->u.auxent.x_csect.x_scnlen.p =
2502 table_base + aux->u.auxent.x_csect.x_scnlen.l;
2503 aux->fix_scnlen = 1;
2504 }
2505
b34976b6 2506 /* Return TRUE to indicate that the caller should not do any
46f2f11d 2507 further work on this auxent. */
b34976b6 2508 return TRUE;
252b5132
RH
2509 }
2510
b34976b6 2511 /* Return FALSE to indicate that this auxent should be handled by
252b5132 2512 the caller. */
b34976b6 2513 return FALSE;
252b5132
RH
2514}
2515
2516#else
2517#ifdef I960
2518
2519/* We don't want to pointerize bal entries. */
2520
b34976b6 2521static bfd_boolean
7920ce38
NC
2522coff_pointerize_aux_hook (bfd *abfd ATTRIBUTE_UNUSED,
2523 combined_entry_type *table_base ATTRIBUTE_UNUSED,
2524 combined_entry_type *symbol,
2525 unsigned int indaux,
2526 combined_entry_type *aux ATTRIBUTE_UNUSED)
252b5132 2527{
b34976b6 2528 /* Return TRUE if we don't want to pointerize this aux entry, which
252b5132
RH
2529 is the case for the lastfirst aux entry for a C_LEAFPROC symbol. */
2530 return (indaux == 1
2531 && (symbol->u.syment.n_sclass == C_LEAFPROC
2532 || symbol->u.syment.n_sclass == C_LEAFSTAT
2533 || symbol->u.syment.n_sclass == C_LEAFEXT));
2534}
2535
2536#else /* ! I960 */
2537
2538#define coff_pointerize_aux_hook 0
2539
2540#endif /* ! I960 */
2541#endif /* ! RS6000COFF_C */
2542
b34976b6 2543/* Print an aux entry. This returns TRUE if it has printed it. */
252b5132 2544
b34976b6 2545static bfd_boolean
7920ce38
NC
2546coff_print_aux (bfd *abfd ATTRIBUTE_UNUSED,
2547 FILE *file ATTRIBUTE_UNUSED,
2548 combined_entry_type *table_base ATTRIBUTE_UNUSED,
2549 combined_entry_type *symbol ATTRIBUTE_UNUSED,
2550 combined_entry_type *aux ATTRIBUTE_UNUSED,
2551 unsigned int indaux ATTRIBUTE_UNUSED)
252b5132
RH
2552{
2553#ifdef RS6000COFF_C
8602d4fe 2554 if (CSECT_SYM_P (symbol->u.syment.n_sclass)
252b5132
RH
2555 && indaux + 1 == symbol->u.syment.n_numaux)
2556 {
2557 /* This is a csect entry. */
2558 fprintf (file, "AUX ");
2559 if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) != XTY_LD)
2560 {
2561 BFD_ASSERT (! aux->fix_scnlen);
dc810e39 2562#ifdef XCOFF64
f60ca5e3
AM
2563 fprintf (file, "val %5lld",
2564 (long long) aux->u.auxent.x_csect.x_scnlen.l);
beb1bf64
TR
2565#else
2566 fprintf (file, "val %5ld", (long) aux->u.auxent.x_csect.x_scnlen.l);
2567#endif
252b5132
RH
2568 }
2569 else
2570 {
2571 fprintf (file, "indx ");
2572 if (! aux->fix_scnlen)
beb1bf64 2573#ifdef XCOFF64
f60ca5e3
AM
2574 fprintf (file, "%4lld",
2575 (long long) aux->u.auxent.x_csect.x_scnlen.l);
beb1bf64
TR
2576#else
2577 fprintf (file, "%4ld", (long) aux->u.auxent.x_csect.x_scnlen.l);
2578#endif
252b5132
RH
2579 else
2580 fprintf (file, "%4ld",
2581 (long) (aux->u.auxent.x_csect.x_scnlen.p - table_base));
2582 }
2583 fprintf (file,
2584 " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u",
2585 aux->u.auxent.x_csect.x_parmhash,
2586 (unsigned int) aux->u.auxent.x_csect.x_snhash,
2587 SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp),
2588 SMTYP_ALIGN (aux->u.auxent.x_csect.x_smtyp),
2589 (unsigned int) aux->u.auxent.x_csect.x_smclas,
2590 aux->u.auxent.x_csect.x_stab,
2591 (unsigned int) aux->u.auxent.x_csect.x_snstab);
b34976b6 2592 return TRUE;
252b5132
RH
2593 }
2594#endif
2595
b34976b6
AM
2596 /* Return FALSE to indicate that no special action was taken. */
2597 return FALSE;
252b5132
RH
2598}
2599
2600/*
2601SUBSUBSECTION
2602 Writing relocations
2603
2604 To write relocations, the back end steps though the
2605 canonical relocation table and create an
2606 @code{internal_reloc}. The symbol index to use is removed from
2607 the @code{offset} field in the symbol table supplied. The
2608 address comes directly from the sum of the section base
2609 address and the relocation offset; the type is dug directly
2610 from the howto field. Then the @code{internal_reloc} is
2611 swapped into the shape of an @code{external_reloc} and written
2612 out to disk.
2613
2614*/
2615
2616#ifdef TARG_AUX
2617
252b5132 2618
ed781d5d 2619/* AUX's ld wants relocations to be sorted. */
252b5132 2620static int
7920ce38 2621compare_arelent_ptr (const void * x, const void * y)
252b5132
RH
2622{
2623 const arelent **a = (const arelent **) x;
2624 const arelent **b = (const arelent **) y;
2625 bfd_size_type aadr = (*a)->address;
2626 bfd_size_type badr = (*b)->address;
2627
2628 return (aadr < badr ? -1 : badr < aadr ? 1 : 0);
2629}
2630
2631#endif /* TARG_AUX */
2632
b34976b6 2633static bfd_boolean
7920ce38 2634coff_write_relocs (bfd * abfd, int first_undef)
252b5132
RH
2635{
2636 asection *s;
2637
7920ce38 2638 for (s = abfd->sections; s != NULL; s = s->next)
252b5132
RH
2639 {
2640 unsigned int i;
2641 struct external_reloc dst;
2642 arelent **p;
2643
2644#ifndef TARG_AUX
2645 p = s->orelocation;
2646#else
dc810e39 2647 {
ed781d5d 2648 /* Sort relocations before we write them out. */
dc810e39
AM
2649 bfd_size_type amt;
2650
2651 amt = s->reloc_count;
2652 amt *= sizeof (arelent *);
7920ce38 2653 p = bfd_malloc (amt);
dc810e39 2654 if (p == NULL && s->reloc_count > 0)
b34976b6 2655 return FALSE;
dc810e39
AM
2656 memcpy (p, s->orelocation, (size_t) amt);
2657 qsort (p, s->reloc_count, sizeof (arelent *), compare_arelent_ptr);
2658 }
252b5132
RH
2659#endif
2660
2661 if (bfd_seek (abfd, s->rel_filepos, SEEK_SET) != 0)
b34976b6 2662 return FALSE;
3e4554a2
DD
2663
2664#ifdef COFF_WITH_PE
e9168c1e 2665 if (obj_pe (abfd) && s->reloc_count >= 0xffff)
3e4554a2 2666 {
ed781d5d 2667 /* Encode real count here as first reloc. */
3e4554a2 2668 struct internal_reloc n;
ed781d5d 2669
7920ce38 2670 memset (& n, 0, sizeof (n));
ed781d5d 2671 /* Add one to count *this* reloc (grr). */
3e4554a2
DD
2672 n.r_vaddr = s->reloc_count + 1;
2673 coff_swap_reloc_out (abfd, &n, &dst);
7920ce38
NC
2674 if (bfd_bwrite (& dst, (bfd_size_type) bfd_coff_relsz (abfd),
2675 abfd) != bfd_coff_relsz (abfd))
b34976b6 2676 return FALSE;
3e4554a2
DD
2677 }
2678#endif
2679
252b5132
RH
2680 for (i = 0; i < s->reloc_count; i++)
2681 {
2682 struct internal_reloc n;
2683 arelent *q = p[i];
ed781d5d 2684
7920ce38 2685 memset (& n, 0, sizeof (n));
252b5132
RH
2686
2687 /* Now we've renumbered the symbols we know where the
2688 undefined symbols live in the table. Check the reloc
2689 entries for symbols who's output bfd isn't the right one.
2690 This is because the symbol was undefined (which means
2691 that all the pointers are never made to point to the same
2692 place). This is a bad thing,'cause the symbols attached
2693 to the output bfd are indexed, so that the relocation
2694 entries know which symbol index they point to. So we
e60b52c6 2695 have to look up the output symbol here. */
252b5132 2696
ef72a554 2697 if (q->sym_ptr_ptr[0] != NULL && q->sym_ptr_ptr[0]->the_bfd != abfd)
252b5132 2698 {
dc810e39 2699 int j;
252b5132
RH
2700 const char *sname = q->sym_ptr_ptr[0]->name;
2701 asymbol **outsyms = abfd->outsymbols;
ed781d5d 2702
dc810e39 2703 for (j = first_undef; outsyms[j]; j++)
252b5132 2704 {
dc810e39 2705 const char *intable = outsyms[j]->name;
ed781d5d 2706
7920ce38
NC
2707 if (strcmp (intable, sname) == 0)
2708 {
2709 /* Got a hit, so repoint the reloc. */
2710 q->sym_ptr_ptr = outsyms + j;
2711 break;
2712 }
252b5132
RH
2713 }
2714 }
2715
2716 n.r_vaddr = q->address + s->vma;
2717
2718#ifdef R_IHCONST
2719 /* The 29k const/consth reloc pair is a real kludge. The consth
2720 part doesn't have a symbol; it has an offset. So rebuilt
2721 that here. */
2722 if (q->howto->type == R_IHCONST)
2723 n.r_symndx = q->addend;
2724 else
2725#endif
ef72a554 2726 if (q->sym_ptr_ptr && q->sym_ptr_ptr[0] != NULL)
252b5132 2727 {
6c784c9a 2728#ifdef SECTION_RELATIVE_ABSOLUTE_SYMBOL_P
46f2f11d 2729 if (SECTION_RELATIVE_ABSOLUTE_SYMBOL_P (q, s))
6c784c9a 2730#else
250d94fd
AM
2731 if ((*q->sym_ptr_ptr)->section == bfd_abs_section_ptr
2732 && ((*q->sym_ptr_ptr)->flags & BSF_SECTION_SYM) != 0)
6c784c9a 2733#endif
252b5132
RH
2734 /* This is a relocation relative to the absolute symbol. */
2735 n.r_symndx = -1;
2736 else
2737 {
2738 n.r_symndx = get_index ((*(q->sym_ptr_ptr)));
337ff0a5
NC
2739 /* Check to see if the symbol reloc points to a symbol
2740 we don't have in our symbol table. */
252b5132 2741 if (n.r_symndx > obj_conv_table_size (abfd))
337ff0a5
NC
2742 {
2743 bfd_set_error (bfd_error_bad_value);
2744 _bfd_error_handler (_("%B: reloc against a non-existant symbol index: %ld"),
2745 abfd, n.r_symndx);
2746 return FALSE;
2747 }
252b5132
RH
2748 }
2749 }
2750
2751#ifdef SWAP_OUT_RELOC_OFFSET
2752 n.r_offset = q->addend;
2753#endif
2754
2755#ifdef SELECT_RELOC
ed781d5d 2756 /* Work out reloc type from what is required. */
252b5132
RH
2757 SELECT_RELOC (n, q->howto);
2758#else
2759 n.r_type = q->howto->type;
2760#endif
2761 coff_swap_reloc_out (abfd, &n, &dst);
ed781d5d 2762
7920ce38 2763 if (bfd_bwrite (& dst, (bfd_size_type) bfd_coff_relsz (abfd),
dc810e39 2764 abfd) != bfd_coff_relsz (abfd))
b34976b6 2765 return FALSE;
252b5132
RH
2766 }
2767
2768#ifdef TARG_AUX
2769 if (p != NULL)
2770 free (p);
2771#endif
2772 }
2773
b34976b6 2774 return TRUE;
252b5132
RH
2775}
2776
2777/* Set flags and magic number of a coff file from architecture and machine
b34976b6 2778 type. Result is TRUE if we can represent the arch&type, FALSE if not. */
252b5132 2779
b34976b6 2780static bfd_boolean
7920ce38
NC
2781coff_set_flags (bfd * abfd,
2782 unsigned int *magicp ATTRIBUTE_UNUSED,
2783 unsigned short *flagsp ATTRIBUTE_UNUSED)
252b5132
RH
2784{
2785 switch (bfd_get_arch (abfd))
2786 {
3c9b82ba
NC
2787#ifdef Z80MAGIC
2788 case bfd_arch_z80:
2789 *magicp = Z80MAGIC;
2790 switch (bfd_get_mach (abfd))
2791 {
2792 case 0:
2793 case bfd_mach_z80strict:
2794 case bfd_mach_z80:
2795 case bfd_mach_z80full:
2796 case bfd_mach_r800:
2797 *flagsp = bfd_get_mach (abfd) << 12;
2798 break;
2799 default:
2800 return FALSE;
2801 }
2802 return TRUE;
2803#endif
2804
252b5132
RH
2805#ifdef Z8KMAGIC
2806 case bfd_arch_z8k:
2807 *magicp = Z8KMAGIC;
7920ce38 2808
252b5132
RH
2809 switch (bfd_get_mach (abfd))
2810 {
7920ce38
NC
2811 case bfd_mach_z8001: *flagsp = F_Z8001; break;
2812 case bfd_mach_z8002: *flagsp = F_Z8002; break;
2813 default: return FALSE;
252b5132 2814 }
b34976b6 2815 return TRUE;
252b5132 2816#endif
252b5132 2817
7920ce38 2818#ifdef I960ROMAGIC
252b5132
RH
2819 case bfd_arch_i960:
2820
2821 {
2822 unsigned flags;
7920ce38 2823
252b5132 2824 *magicp = I960ROMAGIC;
7920ce38 2825
252b5132
RH
2826 switch (bfd_get_mach (abfd))
2827 {
7920ce38
NC
2828 case bfd_mach_i960_core: flags = F_I960CORE; break;
2829 case bfd_mach_i960_kb_sb: flags = F_I960KB; break;
2830 case bfd_mach_i960_mc: flags = F_I960MC; break;
2831 case bfd_mach_i960_xa: flags = F_I960XA; break;
2832 case bfd_mach_i960_ca: flags = F_I960CA; break;
2833 case bfd_mach_i960_ka_sa: flags = F_I960KA; break;
2834 case bfd_mach_i960_jx: flags = F_I960JX; break;
2835 case bfd_mach_i960_hx: flags = F_I960HX; break;
46f2f11d 2836 default: return FALSE;
252b5132
RH
2837 }
2838 *flagsp = flags;
b34976b6 2839 return TRUE;
252b5132
RH
2840 }
2841 break;
2842#endif
2843
2844#ifdef TIC30MAGIC
2845 case bfd_arch_tic30:
2846 *magicp = TIC30MAGIC;
b34976b6 2847 return TRUE;
252b5132 2848#endif
81635ce4
TW
2849
2850#ifdef TICOFF_DEFAULT_MAGIC
2851 case TICOFF_TARGET_ARCH:
ed781d5d 2852 /* If there's no indication of which version we want, use the default. */
81635ce4 2853 if (!abfd->xvec )
46f2f11d 2854 *magicp = TICOFF_DEFAULT_MAGIC;
81635ce4 2855 else
46f2f11d
AM
2856 {
2857 /* We may want to output in a different COFF version. */
2858 switch (abfd->xvec->name[4])
2859 {
2860 case '0':
2861 *magicp = TICOFF0MAGIC;
2862 break;
2863 case '1':
2864 *magicp = TICOFF1MAGIC;
2865 break;
2866 case '2':
2867 *magicp = TICOFF2MAGIC;
2868 break;
2869 default:
2870 return FALSE;
2871 }
2872 }
0da35f8b 2873 TICOFF_TARGET_MACHINE_SET (flagsp, bfd_get_mach (abfd));
b34976b6 2874 return TRUE;
81635ce4
TW
2875#endif
2876
252b5132
RH
2877#ifdef TIC80_ARCH_MAGIC
2878 case bfd_arch_tic80:
2879 *magicp = TIC80_ARCH_MAGIC;
b34976b6 2880 return TRUE;
252b5132 2881#endif
7920ce38 2882
252b5132
RH
2883#ifdef ARMMAGIC
2884 case bfd_arch_arm:
17505c5c
NC
2885#ifdef ARM_WINCE
2886 * magicp = ARMPEMAGIC;
2887#else
252b5132 2888 * magicp = ARMMAGIC;
17505c5c 2889#endif
252b5132
RH
2890 * flagsp = 0;
2891 if (APCS_SET (abfd))
2892 {
2893 if (APCS_26_FLAG (abfd))
2894 * flagsp |= F_APCS26;
e60b52c6 2895
252b5132
RH
2896 if (APCS_FLOAT_FLAG (abfd))
2897 * flagsp |= F_APCS_FLOAT;
e60b52c6 2898
252b5132 2899 if (PIC_FLAG (abfd))
948221a8 2900 * flagsp |= F_PIC;
252b5132
RH
2901 }
2902 if (INTERWORK_SET (abfd) && INTERWORK_FLAG (abfd))
2903 * flagsp |= F_INTERWORK;
2904 switch (bfd_get_mach (abfd))
2905 {
2906 case bfd_mach_arm_2: * flagsp |= F_ARM_2; break;
2907 case bfd_mach_arm_2a: * flagsp |= F_ARM_2a; break;
2908 case bfd_mach_arm_3: * flagsp |= F_ARM_3; break;
2909 case bfd_mach_arm_3M: * flagsp |= F_ARM_3M; break;
2910 case bfd_mach_arm_4: * flagsp |= F_ARM_4; break;
2911 case bfd_mach_arm_4T: * flagsp |= F_ARM_4T; break;
478d07d6 2912 case bfd_mach_arm_5: * flagsp |= F_ARM_5; break;
f13b834e
NC
2913 /* FIXME: we do not have F_ARM vaues greater than F_ARM_5.
2914 See also the comment in coff_set_arch_mach_hook(). */
077b8428
NC
2915 case bfd_mach_arm_5T: * flagsp |= F_ARM_5; break;
2916 case bfd_mach_arm_5TE: * flagsp |= F_ARM_5; break;
2917 case bfd_mach_arm_XScale: * flagsp |= F_ARM_5; break;
252b5132 2918 }
b34976b6 2919 return TRUE;
252b5132 2920#endif
7920ce38 2921
252b5132
RH
2922#ifdef PPCMAGIC
2923 case bfd_arch_powerpc:
2924 *magicp = PPCMAGIC;
b34976b6 2925 return TRUE;
252b5132 2926#endif
7920ce38 2927
99ad8390 2928#if defined(I386MAGIC) || defined(AMD64MAGIC)
252b5132 2929 case bfd_arch_i386:
99ad8390 2930#if defined(I386MAGIC)
252b5132 2931 *magicp = I386MAGIC;
99ad8390
NC
2932#endif
2933#if defined LYNXOS
e60b52c6 2934 /* Just overwrite the usual value if we're doing Lynx. */
252b5132 2935 *magicp = LYNXCOFFMAGIC;
99ad8390
NC
2936#endif
2937#if defined AMD64MAGIC
2938 *magicp = AMD64MAGIC;
252b5132 2939#endif
b34976b6 2940 return TRUE;
252b5132 2941#endif
7920ce38 2942
252b5132
RH
2943#ifdef I860MAGIC
2944 case bfd_arch_i860:
2945 *magicp = I860MAGIC;
b34976b6 2946 return TRUE;
252b5132 2947#endif
7920ce38 2948
fac41780
JW
2949#ifdef IA64MAGIC
2950 case bfd_arch_ia64:
2951 *magicp = IA64MAGIC;
b34976b6 2952 return TRUE;
fac41780 2953#endif
7920ce38 2954
252b5132
RH
2955#ifdef MC68MAGIC
2956 case bfd_arch_m68k:
2957#ifdef APOLLOM68KMAGIC
2958 *magicp = APOLLO_COFF_VERSION_NUMBER;
2959#else
2960 /* NAMES_HAVE_UNDERSCORE may be defined by coff-u68k.c. */
2961#ifdef NAMES_HAVE_UNDERSCORE
2962 *magicp = MC68KBCSMAGIC;
2963#else
2964 *magicp = MC68MAGIC;
2965#endif
2966#endif
2967#ifdef LYNXOS
e60b52c6 2968 /* Just overwrite the usual value if we're doing Lynx. */
252b5132
RH
2969 *magicp = LYNXCOFFMAGIC;
2970#endif
b34976b6 2971 return TRUE;
252b5132
RH
2972#endif
2973
2974#ifdef MC88MAGIC
2975 case bfd_arch_m88k:
2976 *magicp = MC88OMAGIC;
b34976b6 2977 return TRUE;
252b5132 2978#endif
7920ce38 2979
252b5132
RH
2980#ifdef H8300MAGIC
2981 case bfd_arch_h8300:
2982 switch (bfd_get_mach (abfd))
2983 {
7920ce38
NC
2984 case bfd_mach_h8300: *magicp = H8300MAGIC; return TRUE;
2985 case bfd_mach_h8300h: *magicp = H8300HMAGIC; return TRUE;
2986 case bfd_mach_h8300s: *magicp = H8300SMAGIC; return TRUE;
2987 case bfd_mach_h8300hn: *magicp = H8300HNMAGIC; return TRUE;
2988 case bfd_mach_h8300sn: *magicp = H8300SNMAGIC; return TRUE;
2989 default: break;
252b5132
RH
2990 }
2991 break;
2992#endif
2993
2994#ifdef SH_ARCH_MAGIC_BIG
2995 case bfd_arch_sh:
17505c5c
NC
2996#ifdef COFF_IMAGE_WITH_PE
2997 *magicp = SH_ARCH_MAGIC_WINCE;
2998#else
252b5132
RH
2999 if (bfd_big_endian (abfd))
3000 *magicp = SH_ARCH_MAGIC_BIG;
3001 else
3002 *magicp = SH_ARCH_MAGIC_LITTLE;
17505c5c 3003#endif
b34976b6 3004 return TRUE;
17505c5c
NC
3005#endif
3006
3007#ifdef MIPS_ARCH_MAGIC_WINCE
3008 case bfd_arch_mips:
3009 *magicp = MIPS_ARCH_MAGIC_WINCE;
b34976b6 3010 return TRUE;
252b5132
RH
3011#endif
3012
3013#ifdef SPARCMAGIC
3014 case bfd_arch_sparc:
3015 *magicp = SPARCMAGIC;
3016#ifdef LYNXOS
e60b52c6 3017 /* Just overwrite the usual value if we're doing Lynx. */
252b5132
RH
3018 *magicp = LYNXCOFFMAGIC;
3019#endif
b34976b6 3020 return TRUE;
252b5132
RH
3021#endif
3022
3023#ifdef H8500MAGIC
3024 case bfd_arch_h8500:
3025 *magicp = H8500MAGIC;
b34976b6 3026 return TRUE;
252b5132
RH
3027 break;
3028#endif
7920ce38 3029
252b5132
RH
3030#ifdef WE32KMAGIC
3031 case bfd_arch_we32k:
3032 *magicp = WE32KMAGIC;
b34976b6 3033 return TRUE;
252b5132
RH
3034#endif
3035
7f6d05e8 3036#ifdef RS6000COFF_C
252b5132
RH
3037 case bfd_arch_rs6000:
3038#ifndef PPCMAGIC
3039 case bfd_arch_powerpc:
3040#endif
eb1e0e80
NC
3041 BFD_ASSERT (bfd_get_flavour (abfd) == bfd_target_xcoff_flavour);
3042 *magicp = bfd_xcoff_magic_number (abfd);
b34976b6 3043 return TRUE;
252b5132
RH
3044#endif
3045
3046#ifdef MCOREMAGIC
3047 case bfd_arch_mcore:
3048 * magicp = MCOREMAGIC;
b34976b6 3049 return TRUE;
252b5132 3050#endif
e60b52c6 3051
371e71b8
NC
3052#ifdef W65MAGIC
3053 case bfd_arch_w65:
3054 *magicp = W65MAGIC;
b34976b6 3055 return TRUE;
371e71b8
NC
3056#endif
3057
3b16e843
NC
3058#ifdef OR32_MAGIC_BIG
3059 case bfd_arch_or32:
3060 if (bfd_big_endian (abfd))
46f2f11d 3061 * magicp = OR32_MAGIC_BIG;
3b16e843 3062 else
46f2f11d 3063 * magicp = OR32_MAGIC_LITTLE;
b34976b6 3064 return TRUE;
3b16e843
NC
3065#endif
3066
371e71b8 3067 default: /* Unknown architecture. */
b34976b6 3068 /* Fall through to "return FALSE" below, to avoid
371e71b8 3069 "statement never reached" errors on the one below. */
252b5132
RH
3070 break;
3071 }
3072
b34976b6 3073 return FALSE;
252b5132
RH
3074}
3075
b34976b6 3076static bfd_boolean
7920ce38
NC
3077coff_set_arch_mach (bfd * abfd,
3078 enum bfd_architecture arch,
3079 unsigned long machine)
252b5132
RH
3080{
3081 unsigned dummy1;
3082 unsigned short dummy2;
3083
3084 if (! bfd_default_set_arch_mach (abfd, arch, machine))
b34976b6 3085 return FALSE;
252b5132 3086
82e51918
AM
3087 if (arch != bfd_arch_unknown
3088 && ! coff_set_flags (abfd, &dummy1, &dummy2))
7920ce38 3089 return FALSE; /* We can't represent this type. */
252b5132 3090
7920ce38 3091 return TRUE; /* We're easy... */
252b5132
RH
3092}
3093
75cc7189
ILT
3094#ifdef COFF_IMAGE_WITH_PE
3095
3096/* This is used to sort sections by VMA, as required by PE image
3097 files. */
3098
75cc7189 3099static int
7920ce38 3100sort_by_secaddr (const void * arg1, const void * arg2)
75cc7189
ILT
3101{
3102 const asection *a = *(const asection **) arg1;
3103 const asection *b = *(const asection **) arg2;
3104
3105 if (a->vma < b->vma)
3106 return -1;
3107 else if (a->vma > b->vma)
3108 return 1;
7920ce38
NC
3109
3110 return 0;
75cc7189
ILT
3111}
3112
3113#endif /* COFF_IMAGE_WITH_PE */
252b5132 3114
e60b52c6 3115/* Calculate the file position for each section. */
252b5132
RH
3116
3117#ifndef I960
3118#define ALIGN_SECTIONS_IN_FILE
3119#endif
81635ce4 3120#if defined(TIC80COFF) || defined(TICOFF)
252b5132
RH
3121#undef ALIGN_SECTIONS_IN_FILE
3122#endif
3123
b34976b6 3124static bfd_boolean
7920ce38 3125coff_compute_section_file_positions (bfd * abfd)
252b5132
RH
3126{
3127 asection *current;
6b3b007b 3128 file_ptr sofar = bfd_coff_filhsz (abfd);
b34976b6 3129 bfd_boolean align_adjust;
22eb4b1d 3130 int target_index;
252b5132 3131#ifdef ALIGN_SECTIONS_IN_FILE
c7e2358a 3132 asection *previous = NULL;
252b5132
RH
3133 file_ptr old_sofar;
3134#endif
3135
22eb4b1d
AM
3136#ifdef COFF_IMAGE_WITH_PE
3137 int page_size;
3138
3139 if (coff_data (abfd)->link_info)
3140 {
3141 page_size = pe_data (abfd)->pe_opthdr.FileAlignment;
3142
3143 /* If no file alignment has been set, default to one.
3144 This repairs 'ld -r' for arm-wince-pe target. */
3145 if (page_size == 0)
3146 page_size = 1;
3147 }
3148 else
3149 page_size = PE_DEF_FILE_ALIGNMENT;
3150#else
3151#ifdef COFF_PAGE_SIZE
3152 int page_size = COFF_PAGE_SIZE;
3153#endif
3154#endif
3155
252b5132
RH
3156#ifdef RS6000COFF_C
3157 /* On XCOFF, if we have symbols, set up the .debug section. */
3158 if (bfd_get_symcount (abfd) > 0)
3159 {
3160 bfd_size_type sz;
3161 bfd_size_type i, symcount;
3162 asymbol **symp;
3163
3164 sz = 0;
3165 symcount = bfd_get_symcount (abfd);
3166 for (symp = abfd->outsymbols, i = 0; i < symcount; symp++, i++)
3167 {
3168 coff_symbol_type *cf;
3169
3170 cf = coff_symbol_from (abfd, *symp);
3171 if (cf != NULL
3172 && cf->native != NULL
3173 && SYMNAME_IN_DEBUG (&cf->native->u.syment))
3174 {
3175 size_t len;
3176
3177 len = strlen (bfd_asymbol_name (*symp));
7f6d05e8
CP
3178 if (len > SYMNMLEN || bfd_coff_force_symnames_in_strings (abfd))
3179 sz += len + 1 + bfd_coff_debug_string_prefix_length (abfd);
252b5132
RH
3180 }
3181 }
3182 if (sz > 0)
3183 {
3184 asection *dsec;
3185
8a7140c3 3186 dsec = bfd_make_section_old_way (abfd, DOT_DEBUG);
252b5132
RH
3187 if (dsec == NULL)
3188 abort ();
eea6121a 3189 dsec->size = sz;
252b5132
RH
3190 dsec->flags |= SEC_HAS_CONTENTS;
3191 }
3192 }
3193#endif
3194
252b5132 3195 if (bfd_get_start_address (abfd))
7920ce38
NC
3196 /* A start address may have been added to the original file. In this
3197 case it will need an optional header to record it. */
3198 abfd->flags |= EXEC_P;
252b5132
RH
3199
3200 if (abfd->flags & EXEC_P)
6b3b007b 3201 sofar += bfd_coff_aoutsz (abfd);
252b5132
RH
3202#ifdef RS6000COFF_C
3203 else if (xcoff_data (abfd)->full_aouthdr)
6b3b007b 3204 sofar += bfd_coff_aoutsz (abfd);
252b5132
RH
3205 else
3206 sofar += SMALL_AOUTSZ;
3207#endif
3208
6b3b007b 3209 sofar += abfd->section_count * bfd_coff_scnhsz (abfd);
252b5132
RH
3210
3211#ifdef RS6000COFF_C
3212 /* XCOFF handles overflows in the reloc and line number count fields
3213 by allocating a new section header to hold the correct counts. */
3214 for (current = abfd->sections; current != NULL; current = current->next)
3215 if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
6b3b007b 3216 sofar += bfd_coff_scnhsz (abfd);
252b5132
RH
3217#endif
3218
75cc7189
ILT
3219#ifdef COFF_IMAGE_WITH_PE
3220 {
3221 /* PE requires the sections to be in memory order when listed in
3222 the section headers. It also does not like empty loadable
3223 sections. The sections apparently do not have to be in the
3224 right order in the image file itself, but we do need to get the
3225 target_index values right. */
3226
dc810e39 3227 unsigned int count;
75cc7189 3228 asection **section_list;
dc810e39 3229 unsigned int i;
dc810e39 3230 bfd_size_type amt;
75cc7189 3231
4f360784
L
3232#ifdef COFF_PAGE_SIZE
3233 /* Clear D_PAGED if section alignment is smaller than
3234 COFF_PAGE_SIZE. */
3235 if (pe_data (abfd)->pe_opthdr.SectionAlignment < COFF_PAGE_SIZE)
3236 abfd->flags &= ~D_PAGED;
3237#endif
3238
75cc7189
ILT
3239 count = 0;
3240 for (current = abfd->sections; current != NULL; current = current->next)
3241 ++count;
3242
3243 /* We allocate an extra cell to simplify the final loop. */
dc810e39 3244 amt = sizeof (struct asection *) * (count + 1);
a50b1753 3245 section_list = (asection **) bfd_malloc (amt);
75cc7189 3246 if (section_list == NULL)
b34976b6 3247 return FALSE;
75cc7189
ILT
3248
3249 i = 0;
3250 for (current = abfd->sections; current != NULL; current = current->next)
3251 {
3252 section_list[i] = current;
3253 ++i;
3254 }
3255 section_list[i] = NULL;
3256
3257 qsort (section_list, count, sizeof (asection *), sort_by_secaddr);
3258
3259 /* Rethread the linked list into sorted order; at the same time,
3260 assign target_index values. */
3261 target_index = 1;
5daa8fe7
L
3262 abfd->sections = NULL;
3263 abfd->section_last = NULL;
75cc7189
ILT
3264 for (i = 0; i < count; i++)
3265 {
3266 current = section_list[i];
5daa8fe7 3267 bfd_section_list_append (abfd, current);
75cc7189
ILT
3268
3269 /* Later, if the section has zero size, we'll be throwing it
3270 away, so we don't want to number it now. Note that having
3271 a zero size and having real contents are different
3272 concepts: .bss has no contents, but (usually) non-zero
3273 size. */
eea6121a 3274 if (current->size == 0)
75cc7189
ILT
3275 {
3276 /* Discard. However, it still might have (valid) symbols
3277 in it, so arbitrarily set it to section 1 (indexing is
3278 1-based here; usually .text). __end__ and other
3279 contents of .endsection really have this happen.
3280 FIXME: This seems somewhat dubious. */
3281 current->target_index = 1;
3282 }
3283 else
3284 current->target_index = target_index++;
3285 }
3286
2fca4467 3287 free (section_list);
75cc7189
ILT
3288 }
3289#else /* ! COFF_IMAGE_WITH_PE */
3290 {
3291 /* Set the target_index field. */
75cc7189
ILT
3292 target_index = 1;
3293 for (current = abfd->sections; current != NULL; current = current->next)
3294 current->target_index = target_index++;
3295 }
3296#endif /* ! COFF_IMAGE_WITH_PE */
3297
22eb4b1d
AM
3298 if (target_index >= 32768)
3299 {
3300 bfd_set_error (bfd_error_file_too_big);
3301 (*_bfd_error_handler)
3302 (_("%B: too many sections (%d)"), abfd, target_index);
3303 return FALSE;
3304 }
3305
b34976b6 3306 align_adjust = FALSE;
75cc7189 3307 for (current = abfd->sections;
7920ce38 3308 current != NULL;
75cc7189 3309 current = current->next)
252b5132
RH
3310 {
3311#ifdef COFF_IMAGE_WITH_PE
75cc7189
ILT
3312 /* With PE we have to pad each section to be a multiple of its
3313 page size too, and remember both sizes. */
3314 if (coff_section_data (abfd, current) == NULL)
252b5132 3315 {
dc810e39 3316 bfd_size_type amt = sizeof (struct coff_section_tdata);
7920ce38
NC
3317
3318 current->used_by_bfd = bfd_zalloc (abfd, amt);
75cc7189 3319 if (current->used_by_bfd == NULL)
b34976b6 3320 return FALSE;
252b5132 3321 }
75cc7189
ILT
3322 if (pei_section_data (abfd, current) == NULL)
3323 {
dc810e39 3324 bfd_size_type amt = sizeof (struct pei_section_tdata);
7920ce38
NC
3325
3326 coff_section_data (abfd, current)->tdata = bfd_zalloc (abfd, amt);
75cc7189 3327 if (coff_section_data (abfd, current)->tdata == NULL)
b34976b6 3328 return FALSE;
75cc7189
ILT
3329 }
3330 if (pei_section_data (abfd, current)->virt_size == 0)
eea6121a 3331 pei_section_data (abfd, current)->virt_size = current->size;
252b5132
RH
3332#endif
3333
75cc7189 3334 /* Only deal with sections which have contents. */
252b5132
RH
3335 if (!(current->flags & SEC_HAS_CONTENTS))
3336 continue;
3337
21e68916
KT
3338 current->rawsize = current->size;
3339
75cc7189
ILT
3340#ifdef COFF_IMAGE_WITH_PE
3341 /* Make sure we skip empty sections in a PE image. */
eea6121a 3342 if (current->size == 0)
75cc7189
ILT
3343 continue;
3344#endif
3345
252b5132
RH
3346 /* Align the sections in the file to the same boundary on
3347 which they are aligned in virtual memory. I960 doesn't
3348 do this (FIXME) so we can stay in sync with Intel. 960
e60b52c6 3349 doesn't yet page from files... */
252b5132
RH
3350#ifdef ALIGN_SECTIONS_IN_FILE
3351 if ((abfd->flags & EXEC_P) != 0)
3352 {
ed781d5d
NC
3353 /* Make sure this section is aligned on the right boundary - by
3354 padding the previous section up if necessary. */
252b5132 3355 old_sofar = sofar;
7920ce38 3356
47ede03a
TR
3357#ifdef RS6000COFF_C
3358 /* AIX loader checks the text section alignment of (vma - filepos)
3359 So even though the filepos may be aligned wrt the o_algntext, for
19852a2a 3360 AIX executables, this check fails. This shows up when a native
47ede03a
TR
3361 AIX executable is stripped with gnu strip because the default vma
3362 of native is 0x10000150 but default for gnu is 0x10000140. Gnu
b34976b6 3363 stripped gnu excutable passes this check because the filepos is
f3813499
TR
3364 0x0140. This problem also show up with 64 bit shared objects. The
3365 data section must also be aligned. */
b34976b6
AM
3366 if (!strcmp (current->name, _TEXT)
3367 || !strcmp (current->name, _DATA))
47ede03a
TR
3368 {
3369 bfd_vma pad;
3370 bfd_vma align;
3371
3372 sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
3373
3374 align = 1 << current->alignment_power;
3375 pad = abs (current->vma - sofar) % align;
b34976b6
AM
3376
3377 if (pad)
47ede03a
TR
3378 {
3379 pad = align - pad;
3380 sofar += pad;
3381 }
3382 }
3383 else
3384#else
3385 {
3386 sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
3387 }
3388#endif
7920ce38 3389 if (previous != NULL)
eea6121a 3390 previous->size += sofar - old_sofar;
252b5132
RH
3391 }
3392
3393#endif
3394
3395 /* In demand paged files the low order bits of the file offset
3396 must match the low order bits of the virtual address. */
3397#ifdef COFF_PAGE_SIZE
3398 if ((abfd->flags & D_PAGED) != 0
3399 && (current->flags & SEC_ALLOC) != 0)
7bf6dede 3400 sofar += (current->vma - (bfd_vma) sofar) % page_size;
252b5132
RH
3401#endif
3402 current->filepos = sofar;
3403
3404#ifdef COFF_IMAGE_WITH_PE
75cc7189 3405 /* Set the padded size. */
21e68916 3406 current->size = (current->size + page_size - 1) & -page_size;
252b5132
RH
3407#endif
3408
eea6121a 3409 sofar += current->size;
252b5132
RH
3410
3411#ifdef ALIGN_SECTIONS_IN_FILE
ed781d5d 3412 /* Make sure that this section is of the right size too. */
252b5132
RH
3413 if ((abfd->flags & EXEC_P) == 0)
3414 {
3415 bfd_size_type old_size;
3416
eea6121a
AM
3417 old_size = current->size;
3418 current->size = BFD_ALIGN (current->size,
3419 1 << current->alignment_power);
3420 align_adjust = current->size != old_size;
3421 sofar += current->size - old_size;
252b5132
RH
3422 }
3423 else
3424 {
3425 old_sofar = sofar;
3426 sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
3427 align_adjust = sofar != old_sofar;
eea6121a 3428 current->size += sofar - old_sofar;
252b5132
RH
3429 }
3430#endif
3431
3432#ifdef COFF_IMAGE_WITH_PE
3433 /* For PE we need to make sure we pad out to the aligned
46f2f11d
AM
3434 size, in case the caller only writes out data to the
3435 unaligned size. */
eea6121a 3436 if (pei_section_data (abfd, current)->virt_size < current->size)
b34976b6 3437 align_adjust = TRUE;
252b5132
RH
3438#endif
3439
3440#ifdef _LIB
3441 /* Force .lib sections to start at zero. The vma is then
3442 incremented in coff_set_section_contents. This is right for
3443 SVR3.2. */
3444 if (strcmp (current->name, _LIB) == 0)
3445 bfd_set_section_vma (abfd, current, 0);
3446#endif
3447
c7e2358a 3448#ifdef ALIGN_SECTIONS_IN_FILE
252b5132 3449 previous = current;
c7e2358a 3450#endif
252b5132
RH
3451 }
3452
3453 /* It is now safe to write to the output file. If we needed an
3454 alignment adjustment for the last section, then make sure that
3455 there is a byte at offset sofar. If there are no symbols and no
3456 relocs, then nothing follows the last section. If we don't force
3457 the last byte out, then the file may appear to be truncated. */
3458 if (align_adjust)
3459 {
3460 bfd_byte b;
3461
3462 b = 0;
3463 if (bfd_seek (abfd, sofar - 1, SEEK_SET) != 0
dc810e39 3464 || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1)
b34976b6 3465 return FALSE;
252b5132
RH
3466 }
3467
3468 /* Make sure the relocations are aligned. We don't need to make
3469 sure that this byte exists, because it will only matter if there
3470 really are relocs. */
3471 sofar = BFD_ALIGN (sofar, 1 << COFF_DEFAULT_SECTION_ALIGNMENT_POWER);
3472
3473 obj_relocbase (abfd) = sofar;
b34976b6 3474 abfd->output_has_begun = TRUE;
252b5132 3475
b34976b6 3476 return TRUE;
252b5132
RH
3477}
3478
05793179
NC
3479#ifdef COFF_IMAGE_WITH_PE
3480
3481static unsigned int pelength;
3482static unsigned int peheader;
3483
b34976b6 3484static bfd_boolean
7920ce38 3485coff_read_word (bfd *abfd, unsigned int *value)
05793179
NC
3486{
3487 unsigned char b[2];
3488 int status;
3489
3490 status = bfd_bread (b, (bfd_size_type) 2, abfd);
3491 if (status < 1)
3492 {
3493 *value = 0;
b34976b6 3494 return FALSE;
05793179
NC
3495 }
3496
3497 if (status == 1)
3498 *value = (unsigned int) b[0];
3499 else
3500 *value = (unsigned int) (b[0] + (b[1] << 8));
3501
3502 pelength += (unsigned int) status;
3503
b34976b6 3504 return TRUE;
05793179
NC
3505}
3506
3507static unsigned int
7920ce38 3508coff_compute_checksum (bfd *abfd)
05793179 3509{
b34976b6 3510 bfd_boolean more_data;
05793179
NC
3511 file_ptr filepos;
3512 unsigned int value;
3513 unsigned int total;
3514
3515 total = 0;
3516 pelength = 0;
3517 filepos = (file_ptr) 0;
3518
3519 do
3520 {
3521 if (bfd_seek (abfd, filepos, SEEK_SET) != 0)
3522 return 0;
3523
3524 more_data = coff_read_word (abfd, &value);
3525 total += value;
3526 total = 0xffff & (total + (total >> 0x10));
3527 filepos += 2;
3528 }
3529 while (more_data);
3530
3531 return (0xffff & (total + (total >> 0x10)));
3532}
3533
b34976b6 3534static bfd_boolean
7920ce38 3535coff_apply_checksum (bfd *abfd)
05793179
NC
3536{
3537 unsigned int computed;
3538 unsigned int checksum = 0;
3539
3540 if (bfd_seek (abfd, 0x3c, SEEK_SET) != 0)
b34976b6 3541 return FALSE;
05793179
NC
3542
3543 if (!coff_read_word (abfd, &peheader))
b34976b6 3544 return FALSE;
05793179
NC
3545
3546 if (bfd_seek (abfd, peheader + 0x58, SEEK_SET) != 0)
b34976b6 3547 return FALSE;
05793179
NC
3548
3549 checksum = 0;
3550 bfd_bwrite (&checksum, (bfd_size_type) 4, abfd);
3551
3552 if (bfd_seek (abfd, peheader, SEEK_SET) != 0)
b34976b6 3553 return FALSE;
05793179
NC
3554
3555 computed = coff_compute_checksum (abfd);
3556
3557 checksum = computed + pelength;
3558
3559 if (bfd_seek (abfd, peheader + 0x58, SEEK_SET) != 0)
b34976b6 3560 return FALSE;
05793179
NC
3561
3562 bfd_bwrite (&checksum, (bfd_size_type) 4, abfd);
3563
b34976b6 3564 return TRUE;
05793179
NC
3565}
3566
3567#endif /* COFF_IMAGE_WITH_PE */
3568
b34976b6 3569static bfd_boolean
7920ce38 3570coff_write_object_contents (bfd * abfd)
252b5132
RH
3571{
3572 asection *current;
b34976b6
AM
3573 bfd_boolean hasrelocs = FALSE;
3574 bfd_boolean haslinno = FALSE;
3390ce30 3575#ifdef COFF_IMAGE_WITH_PE
b34976b6 3576 bfd_boolean hasdebug = FALSE;
3390ce30 3577#endif
252b5132
RH
3578 file_ptr scn_base;
3579 file_ptr reloc_base;
3580 file_ptr lineno_base;
3581 file_ptr sym_base;
3e4554a2 3582 unsigned long reloc_size = 0, reloc_count = 0;
252b5132 3583 unsigned long lnno_size = 0;
b34976b6 3584 bfd_boolean long_section_names;
252b5132
RH
3585 asection *text_sec = NULL;
3586 asection *data_sec = NULL;
3587 asection *bss_sec = NULL;
3588 struct internal_filehdr internal_f;
3589 struct internal_aouthdr internal_a;
3590#ifdef COFF_LONG_SECTION_NAMES
3591 size_t string_size = STRING_SIZE_SIZE;
3592#endif
3593
3594 bfd_set_error (bfd_error_system_call);
3595
3596 /* Make a pass through the symbol table to count line number entries and
ed781d5d 3597 put them into the correct asections. */
6b3b007b 3598 lnno_size = coff_count_linenumbers (abfd) * bfd_coff_linesz (abfd);
252b5132 3599
82e51918 3600 if (! abfd->output_has_begun)
252b5132
RH
3601 {
3602 if (! coff_compute_section_file_positions (abfd))
b34976b6 3603 return FALSE;
252b5132
RH
3604 }
3605
3606 reloc_base = obj_relocbase (abfd);
3607
ed781d5d 3608 /* Work out the size of the reloc and linno areas. */
252b5132
RH
3609
3610 for (current = abfd->sections; current != NULL; current =
3611 current->next)
3e4554a2
DD
3612 {
3613#ifdef COFF_WITH_PE
ed781d5d 3614 /* We store the actual reloc count in the first reloc's addr. */
e9168c1e 3615 if (obj_pe (abfd) && current->reloc_count >= 0xffff)
3e4554a2
DD
3616 reloc_count ++;
3617#endif
3618 reloc_count += current->reloc_count;
3619 }
3620
3621 reloc_size = reloc_count * bfd_coff_relsz (abfd);
252b5132
RH
3622
3623 lineno_base = reloc_base + reloc_size;
3624 sym_base = lineno_base + lnno_size;
3625
ed781d5d 3626 /* Indicate in each section->line_filepos its actual file address. */
252b5132
RH
3627 for (current = abfd->sections; current != NULL; current =
3628 current->next)
3629 {
3630 if (current->lineno_count)
3631 {
3632 current->line_filepos = lineno_base;
3633 current->moving_line_filepos = lineno_base;
6b3b007b 3634 lineno_base += current->lineno_count * bfd_coff_linesz (abfd);
252b5132
RH
3635 }
3636 else
7920ce38
NC
3637 current->line_filepos = 0;
3638
252b5132
RH
3639 if (current->reloc_count)
3640 {
3641 current->rel_filepos = reloc_base;
6b3b007b 3642 reloc_base += current->reloc_count * bfd_coff_relsz (abfd);
3e4554a2 3643#ifdef COFF_WITH_PE
ed781d5d 3644 /* Extra reloc to hold real count. */
e9168c1e 3645 if (obj_pe (abfd) && current->reloc_count >= 0xffff)
3e4554a2
DD
3646 reloc_base += bfd_coff_relsz (abfd);
3647#endif
252b5132
RH
3648 }
3649 else
7920ce38 3650 current->rel_filepos = 0;
252b5132
RH
3651 }
3652
3653 /* Write section headers to the file. */
3654 internal_f.f_nscns = 0;
3655
3656 if ((abfd->flags & EXEC_P) != 0)
6b3b007b 3657 scn_base = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd);
252b5132
RH
3658 else
3659 {
6b3b007b 3660 scn_base = bfd_coff_filhsz (abfd);
252b5132 3661#ifdef RS6000COFF_C
dc810e39 3662#ifndef XCOFF64
252b5132 3663 if (xcoff_data (abfd)->full_aouthdr)
6b3b007b 3664 scn_base += bfd_coff_aoutsz (abfd);
252b5132
RH
3665 else
3666 scn_base += SMALL_AOUTSZ;
dc810e39 3667#endif
252b5132
RH
3668#endif
3669 }
3670
3671 if (bfd_seek (abfd, scn_base, SEEK_SET) != 0)
b34976b6 3672 return FALSE;
252b5132 3673
b34976b6 3674 long_section_names = FALSE;
252b5132
RH
3675 for (current = abfd->sections;
3676 current != NULL;
3677 current = current->next)
3678 {
3679 struct internal_scnhdr section;
3390ce30 3680#ifdef COFF_IMAGE_WITH_PE
b34976b6 3681 bfd_boolean is_reloc_section = FALSE;
252b5132 3682
bdeb4032 3683 if (strcmp (current->name, DOT_RELOC) == 0)
252b5132 3684 {
b34976b6
AM
3685 is_reloc_section = TRUE;
3686 hasrelocs = TRUE;
252b5132
RH
3687 pe_data (abfd)->has_reloc_section = 1;
3688 }
3689#endif
3690
252b5132
RH
3691 internal_f.f_nscns++;
3692
3693 strncpy (section.s_name, current->name, SCNNMLEN);
3694
3695#ifdef COFF_LONG_SECTION_NAMES
3696 /* Handle long section names as in PE. This must be compatible
46f2f11d 3697 with the code in coff_write_symbols and _bfd_coff_final_link. */
88183869
DK
3698 if (bfd_coff_long_section_names (abfd))
3699 {
3700 size_t len;
252b5132 3701
88183869
DK
3702 len = strlen (current->name);
3703 if (len > SCNNMLEN)
3704 {
6b1cecf3
DK
3705 /* The s_name field is defined to be NUL-padded but need not be
3706 NUL-terminated. We use a temporary buffer so that we can still
3707 sprintf all eight chars without splatting a terminating NUL
3708 over the first byte of the following member (s_paddr). */
3709 char s_name_buf[SCNNMLEN + 1];
3710
3711 /* An inherent limitation of the /nnnnnnn notation used to indicate
3712 the offset of the long name in the string table is that we
3713 cannot address entries beyone the ten million byte boundary. */
3714 if (string_size >= 10000000)
3715 {
3716 bfd_set_error (bfd_error_file_too_big);
3717 (*_bfd_error_handler)
3718 (_("%B: section %s: string table overflow at offset %ld"),
3719 abfd, current->name, string_size);
3720 return FALSE;
3721 }
3722
3723 /* snprintf not strictly necessary now we've verified the value
3724 has less than eight ASCII digits, but never mind. */
3725 snprintf (s_name_buf, SCNNMLEN + 1, "/%lu", (unsigned long) string_size);
3726 /* Then strncpy takes care of any padding for us. */
3727 strncpy (section.s_name, s_name_buf, SCNNMLEN);
88183869
DK
3728 string_size += len + 1;
3729 long_section_names = TRUE;
3730 }
3731 }
252b5132
RH
3732#endif
3733
3734#ifdef _LIB
3735 /* Always set s_vaddr of .lib to 0. This is right for SVR3.2
3736 Ian Taylor <ian@cygnus.com>. */
3737 if (strcmp (current->name, _LIB) == 0)
3738 section.s_vaddr = 0;
3739 else
3740#endif
3741 section.s_vaddr = current->vma;
3742 section.s_paddr = current->lma;
eea6121a 3743 section.s_size = current->size;
b9af77f5 3744#ifdef coff_get_section_load_page
e60b52c6 3745 section.s_page = coff_get_section_load_page (current);
44f74642
NC
3746#else
3747 section.s_page = 0;
b9af77f5 3748#endif
252b5132
RH
3749
3750#ifdef COFF_WITH_PE
3751 section.s_paddr = 0;
3752#endif
3753#ifdef COFF_IMAGE_WITH_PE
3754 /* Reminder: s_paddr holds the virtual size of the section. */
3755 if (coff_section_data (abfd, current) != NULL
3756 && pei_section_data (abfd, current) != NULL)
3757 section.s_paddr = pei_section_data (abfd, current)->virt_size;
3758 else
3759 section.s_paddr = 0;
3760#endif
3761
ed781d5d
NC
3762 /* If this section has no size or is unloadable then the scnptr
3763 will be 0 too. */
eea6121a
AM
3764 if (current->size == 0
3765 || (current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
ed781d5d 3766 section.s_scnptr = 0;
252b5132 3767 else
ed781d5d
NC
3768 section.s_scnptr = current->filepos;
3769
252b5132
RH
3770 section.s_relptr = current->rel_filepos;
3771 section.s_lnnoptr = current->line_filepos;
3772 section.s_nreloc = current->reloc_count;
3773 section.s_nlnno = current->lineno_count;
79207490
ILT
3774#ifndef COFF_IMAGE_WITH_PE
3775 /* In PEI, relocs come in the .reloc section. */
252b5132 3776 if (current->reloc_count != 0)
b34976b6 3777 hasrelocs = TRUE;
79207490 3778#endif
252b5132 3779 if (current->lineno_count != 0)
b34976b6 3780 haslinno = TRUE;
3390ce30 3781#ifdef COFF_IMAGE_WITH_PE
4cfec37b
ILT
3782 if ((current->flags & SEC_DEBUGGING) != 0
3783 && ! is_reloc_section)
b34976b6 3784 hasdebug = TRUE;
3390ce30 3785#endif
252b5132 3786
60bcf0fa 3787#ifdef RS6000COFF_C
7f6d05e8 3788#ifndef XCOFF64
252b5132
RH
3789 /* Indicate the use of an XCOFF overflow section header. */
3790 if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
3791 {
3792 section.s_nreloc = 0xffff;
3793 section.s_nlnno = 0xffff;
3794 }
7f6d05e8 3795#endif
252b5132
RH
3796#endif
3797
3798 section.s_flags = sec_to_styp_flags (current->name, current->flags);
3799
3800 if (!strcmp (current->name, _TEXT))
ed781d5d 3801 text_sec = current;
252b5132 3802 else if (!strcmp (current->name, _DATA))
ed781d5d 3803 data_sec = current;
252b5132 3804 else if (!strcmp (current->name, _BSS))
ed781d5d 3805 bss_sec = current;
252b5132
RH
3806
3807#ifdef I960
3808 section.s_align = (current->alignment_power
3809 ? 1 << current->alignment_power
3810 : 0);
81635ce4 3811#endif
e60b52c6 3812#ifdef TIC80COFF
ed781d5d 3813 /* TI COFF puts the alignment power in bits 8-11 of the flags. */
252b5132
RH
3814 section.s_flags |= (current->alignment_power & 0xF) << 8;
3815#endif
81635ce4
TW
3816#ifdef COFF_ENCODE_ALIGNMENT
3817 COFF_ENCODE_ALIGNMENT(section, current->alignment_power);
252b5132
RH
3818#endif
3819
3820#ifdef COFF_IMAGE_WITH_PE
00692651
ILT
3821 /* Suppress output of the sections if they are null. ld
3822 includes the bss and data sections even if there is no size
3823 assigned to them. NT loader doesn't like it if these section
3824 headers are included if the sections themselves are not
3825 needed. See also coff_compute_section_file_positions. */
252b5132
RH
3826 if (section.s_size == 0)
3827 internal_f.f_nscns--;
3828 else
3829#endif
3830 {
3831 SCNHDR buff;
dc810e39
AM
3832 bfd_size_type amt = bfd_coff_scnhsz (abfd);
3833
252b5132 3834 if (coff_swap_scnhdr_out (abfd, &section, &buff) == 0
7920ce38 3835 || bfd_bwrite (& buff, amt, abfd) != amt)
b34976b6 3836 return FALSE;
252b5132
RH
3837 }
3838
3839#ifdef COFF_WITH_PE
3840 /* PE stores COMDAT section information in the symbol table. If
46f2f11d
AM
3841 this section is supposed to have some COMDAT info, track down
3842 the symbol in the symbol table and modify it. */
252b5132
RH
3843 if ((current->flags & SEC_LINK_ONCE) != 0)
3844 {
3845 unsigned int i, count;
3846 asymbol **psym;
3847 coff_symbol_type *csym = NULL;
3848 asymbol **psymsec;
3849
3850 psymsec = NULL;
3851 count = bfd_get_symcount (abfd);
3852 for (i = 0, psym = abfd->outsymbols; i < count; i++, psym++)
3853 {
3854 if ((*psym)->section != current)
3855 continue;
3856
3857 /* Remember the location of the first symbol in this
46f2f11d 3858 section. */
252b5132
RH
3859 if (psymsec == NULL)
3860 psymsec = psym;
3861
3862 /* See if this is the section symbol. */
3863 if (strcmp ((*psym)->name, current->name) == 0)
3864 {
3865 csym = coff_symbol_from (abfd, *psym);
3866 if (csym == NULL
3867 || csym->native == NULL
3868 || csym->native->u.syment.n_numaux < 1
3869 || csym->native->u.syment.n_sclass != C_STAT
3870 || csym->native->u.syment.n_type != T_NULL)
3871 continue;
3872
3873 /* Here *PSYM is the section symbol for CURRENT. */
3874
3875 break;
3876 }
3877 }
3878
3879 /* Did we find it?
3880 Note that we might not if we're converting the file from
3881 some other object file format. */
3882 if (i < count)
3883 {
3884 combined_entry_type *aux;
3885
3886 /* We don't touch the x_checksum field. The
3887 x_associated field is not currently supported. */
3888
3889 aux = csym->native + 1;
3890 switch (current->flags & SEC_LINK_DUPLICATES)
3891 {
3892 case SEC_LINK_DUPLICATES_DISCARD:
3893 aux->u.auxent.x_scn.x_comdat = IMAGE_COMDAT_SELECT_ANY;
3894 break;
3895
3896 case SEC_LINK_DUPLICATES_ONE_ONLY:
3897 aux->u.auxent.x_scn.x_comdat =
3898 IMAGE_COMDAT_SELECT_NODUPLICATES;
3899 break;
3900
3901 case SEC_LINK_DUPLICATES_SAME_SIZE:
3902 aux->u.auxent.x_scn.x_comdat =
3903 IMAGE_COMDAT_SELECT_SAME_SIZE;
3904 break;
3905
3906 case SEC_LINK_DUPLICATES_SAME_CONTENTS:
3907 aux->u.auxent.x_scn.x_comdat =
3908 IMAGE_COMDAT_SELECT_EXACT_MATCH;
3909 break;
3910 }
3911
3912 /* The COMDAT symbol must be the first symbol from this
46f2f11d
AM
3913 section in the symbol table. In order to make this
3914 work, we move the COMDAT symbol before the first
3915 symbol we found in the search above. It's OK to
3916 rearrange the symbol table at this point, because
3917 coff_renumber_symbols is going to rearrange it
3918 further and fix up all the aux entries. */
252b5132
RH
3919 if (psym != psymsec)
3920 {
3921 asymbol *hold;
3922 asymbol **pcopy;
3923
3924 hold = *psym;
3925 for (pcopy = psym; pcopy > psymsec; pcopy--)
3926 pcopy[0] = pcopy[-1];
3927 *psymsec = hold;
3928 }
3929 }
3930 }
3931#endif /* COFF_WITH_PE */
3932 }
3933
3934#ifdef RS6000COFF_C
dc810e39 3935#ifndef XCOFF64
252b5132
RH
3936 /* XCOFF handles overflows in the reloc and line number count fields
3937 by creating a new section header to hold the correct values. */
3938 for (current = abfd->sections; current != NULL; current = current->next)
3939 {
3940 if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
3941 {
3942 struct internal_scnhdr scnhdr;
3943 SCNHDR buff;
dc810e39 3944 bfd_size_type amt;
252b5132
RH
3945
3946 internal_f.f_nscns++;
3947 strncpy (&(scnhdr.s_name[0]), current->name, 8);
3948 scnhdr.s_paddr = current->reloc_count;
3949 scnhdr.s_vaddr = current->lineno_count;
3950 scnhdr.s_size = 0;
3951 scnhdr.s_scnptr = 0;
3952 scnhdr.s_relptr = current->rel_filepos;
3953 scnhdr.s_lnnoptr = current->line_filepos;
3954 scnhdr.s_nreloc = current->target_index;
3955 scnhdr.s_nlnno = current->target_index;
3956 scnhdr.s_flags = STYP_OVRFLO;
dc810e39 3957 amt = bfd_coff_scnhsz (abfd);
252b5132 3958 if (coff_swap_scnhdr_out (abfd, &scnhdr, &buff) == 0
7920ce38 3959 || bfd_bwrite (& buff, amt, abfd) != amt)
b34976b6 3960 return FALSE;
252b5132
RH
3961 }
3962 }
beb1bf64 3963#endif
252b5132
RH
3964#endif
3965
e60b52c6 3966 /* OK, now set up the filehdr... */
252b5132
RH
3967
3968 /* Don't include the internal abs section in the section count */
3969
ed781d5d 3970 /* We will NOT put a fucking timestamp in the header here. Every time you
252b5132
RH
3971 put it back, I will come in and take it out again. I'm sorry. This
3972 field does not belong here. We fill it with a 0 so it compares the
ed781d5d 3973 same but is not a reasonable time. -- gnu@cygnus.com */
252b5132 3974 internal_f.f_timdat = 0;
252b5132
RH
3975 internal_f.f_flags = 0;
3976
3977 if (abfd->flags & EXEC_P)
6b3b007b 3978 internal_f.f_opthdr = bfd_coff_aoutsz (abfd);
252b5132
RH
3979 else
3980 {
3981 internal_f.f_opthdr = 0;
3982#ifdef RS6000COFF_C
dc810e39 3983#ifndef XCOFF64
252b5132 3984 if (xcoff_data (abfd)->full_aouthdr)
6b3b007b 3985 internal_f.f_opthdr = bfd_coff_aoutsz (abfd);
252b5132
RH
3986 else
3987 internal_f.f_opthdr = SMALL_AOUTSZ;
dc810e39 3988#endif
252b5132
RH
3989#endif
3990 }
3991
3992 if (!hasrelocs)
3993 internal_f.f_flags |= F_RELFLG;
3994 if (!haslinno)
3995 internal_f.f_flags |= F_LNNO;
3996 if (abfd->flags & EXEC_P)
3997 internal_f.f_flags |= F_EXEC;
4cfec37b
ILT
3998#ifdef COFF_IMAGE_WITH_PE
3999 if (! hasdebug)
4000 internal_f.f_flags |= IMAGE_FILE_DEBUG_STRIPPED;
d70270c5
BF
4001 if (pe_data (abfd)->real_flags & IMAGE_FILE_LARGE_ADDRESS_AWARE)
4002 internal_f.f_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE;
4cfec37b 4003#endif
252b5132 4004
99ad8390 4005#ifndef COFF_WITH_pex64
bcb9b88d
NC
4006#ifdef COFF_WITH_PE
4007 internal_f.f_flags |= IMAGE_FILE_32BIT_MACHINE;
4008#else
252b5132
RH
4009 if (bfd_little_endian (abfd))
4010 internal_f.f_flags |= F_AR32WR;
4011 else
4012 internal_f.f_flags |= F_AR32W;
8a1ad8e7 4013#endif
99ad8390 4014#endif
252b5132 4015
81635ce4 4016#ifdef TI_TARGET_ID
ed781d5d
NC
4017 /* Target id is used in TI COFF v1 and later; COFF0 won't use this field,
4018 but it doesn't hurt to set it internally. */
81635ce4
TW
4019 internal_f.f_target_id = TI_TARGET_ID;
4020#endif
252b5132
RH
4021#ifdef TIC80_TARGET_ID
4022 internal_f.f_target_id = TIC80_TARGET_ID;
4023#endif
4024
ed781d5d
NC
4025 /* FIXME, should do something about the other byte orders and
4026 architectures. */
252b5132
RH
4027
4028#ifdef RS6000COFF_C
4029 if ((abfd->flags & DYNAMIC) != 0)
4030 internal_f.f_flags |= F_SHROBJ;
4031 if (bfd_get_section_by_name (abfd, _LOADER) != NULL)
4032 internal_f.f_flags |= F_DYNLOAD;
4033#endif
4034
4035 memset (&internal_a, 0, sizeof internal_a);
4036
ed781d5d 4037 /* Set up architecture-dependent stuff. */
252b5132
RH
4038 {
4039 unsigned int magic = 0;
4040 unsigned short flags = 0;
ed781d5d 4041
252b5132
RH
4042 coff_set_flags (abfd, &magic, &flags);
4043 internal_f.f_magic = magic;
4044 internal_f.f_flags |= flags;
e60b52c6 4045 /* ...and the "opt"hdr... */
252b5132 4046
81635ce4
TW
4047#ifdef TICOFF_AOUT_MAGIC
4048 internal_a.magic = TICOFF_AOUT_MAGIC;
4049#define __A_MAGIC_SET__
4050#endif
252b5132
RH
4051#ifdef TIC80COFF
4052 internal_a.magic = TIC80_ARCH_MAGIC;
4053#define __A_MAGIC_SET__
4054#endif /* TIC80 */
4055#ifdef I860
4056 /* FIXME: What are the a.out magic numbers for the i860? */
4057 internal_a.magic = 0;
4058#define __A_MAGIC_SET__
4059#endif /* I860 */
4060#ifdef I960
4061 internal_a.magic = (magic == I960ROMAGIC ? NMAGIC : OMAGIC);
4062#define __A_MAGIC_SET__
4063#endif /* I960 */
4064#if M88
4065#define __A_MAGIC_SET__
4066 internal_a.magic = PAGEMAGICBCS;
4067#endif /* M88 */
4068
4069#if APOLLO_M68
4070#define __A_MAGIC_SET__
4071 internal_a.magic = APOLLO_COFF_VERSION_NUMBER;
4072#endif
4073
4074#if defined(M68) || defined(WE32K) || defined(M68K)
4075#define __A_MAGIC_SET__
4076#if defined(LYNXOS)
4077 internal_a.magic = LYNXCOFFMAGIC;
4078#else
4079#if defined(TARG_AUX)
4080 internal_a.magic = (abfd->flags & D_PAGED ? PAGEMAGICPEXECPAGED :
4081 abfd->flags & WP_TEXT ? PAGEMAGICPEXECSWAPPED :
4082 PAGEMAGICEXECSWAPPED);
4083#else
4084#if defined (PAGEMAGICPEXECPAGED)
4085 internal_a.magic = PAGEMAGICPEXECPAGED;
4086#endif
4087#endif /* TARG_AUX */
4088#endif /* LYNXOS */
4089#endif /* M68 || WE32K || M68K */
4090
4091#if defined(ARM)
4092#define __A_MAGIC_SET__
4093 internal_a.magic = ZMAGIC;
e60b52c6 4094#endif
252b5132
RH
4095
4096#if defined(PPC_PE)
4097#define __A_MAGIC_SET__
4098 internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC;
4099#endif
4100
4101#if defined MCORE_PE
4102#define __A_MAGIC_SET__
4103 internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC;
e60b52c6 4104#endif
252b5132
RH
4105
4106#if defined(I386)
4107#define __A_MAGIC_SET__
99ad8390 4108#if defined LYNXOS
252b5132 4109 internal_a.magic = LYNXCOFFMAGIC;
99ad8390
NC
4110#elif defined AMD64
4111 internal_a.magic = IMAGE_NT_OPTIONAL_HDR64_MAGIC;
4112#else
252b5132 4113 internal_a.magic = ZMAGIC;
99ad8390 4114#endif
252b5132
RH
4115#endif /* I386 */
4116
fac41780
JW
4117#if defined(IA64)
4118#define __A_MAGIC_SET__
7a2ec0a6 4119 internal_a.magic = PE32PMAGIC;
fac41780
JW
4120#endif /* IA64 */
4121
252b5132
RH
4122#if defined(SPARC)
4123#define __A_MAGIC_SET__
4124#if defined(LYNXOS)
4125 internal_a.magic = LYNXCOFFMAGIC;
4126#endif /* LYNXOS */
4127#endif /* SPARC */
4128
4129#ifdef RS6000COFF_C
4130#define __A_MAGIC_SET__
4131 internal_a.magic = (abfd->flags & D_PAGED) ? RS6K_AOUTHDR_ZMAGIC :
4132 (abfd->flags & WP_TEXT) ? RS6K_AOUTHDR_NMAGIC :
4133 RS6K_AOUTHDR_OMAGIC;
4134#endif
4135
17505c5c
NC
4136#if defined(SH) && defined(COFF_WITH_PE)
4137#define __A_MAGIC_SET__
4138 internal_a.magic = SH_PE_MAGIC;
4139#endif
4140
4141#if defined(MIPS) && defined(COFF_WITH_PE)
4142#define __A_MAGIC_SET__
4143 internal_a.magic = MIPS_PE_MAGIC;
4144#endif
4145
3b16e843
NC
4146#ifdef OR32
4147#define __A_MAGIC_SET__
4148 internal_a.magic = NMAGIC; /* Assume separate i/d. */
4149#endif
4150
252b5132
RH
4151#ifndef __A_MAGIC_SET__
4152#include "Your aouthdr magic number is not being set!"
4153#else
4154#undef __A_MAGIC_SET__
4155#endif
4156 }
4157
4158 /* FIXME: Does anybody ever set this to another value? */
4159 internal_a.vstamp = 0;
4160
ed781d5d 4161 /* Now should write relocs, strings, syms. */
252b5132
RH
4162 obj_sym_filepos (abfd) = sym_base;
4163
4164 if (bfd_get_symcount (abfd) != 0)
4165 {
4166 int firstundef;
0e71e495 4167
252b5132 4168 if (!coff_renumber_symbols (abfd, &firstundef))
b34976b6 4169 return FALSE;
252b5132
RH
4170 coff_mangle_symbols (abfd);
4171 if (! coff_write_symbols (abfd))
b34976b6 4172 return FALSE;
252b5132 4173 if (! coff_write_linenumbers (abfd))
b34976b6 4174 return FALSE;
252b5132 4175 if (! coff_write_relocs (abfd, firstundef))
b34976b6 4176 return FALSE;
252b5132
RH
4177 }
4178#ifdef COFF_LONG_SECTION_NAMES
d71f672e 4179 else if (long_section_names && ! obj_coff_strings_written (abfd))
252b5132
RH
4180 {
4181 /* If we have long section names we have to write out the string
46f2f11d 4182 table even if there are no symbols. */
252b5132 4183 if (! coff_write_symbols (abfd))
b34976b6 4184 return FALSE;
252b5132
RH
4185 }
4186#endif
4187#ifdef COFF_IMAGE_WITH_PE
4188#ifdef PPC_PE
4189 else if ((abfd->flags & EXEC_P) != 0)
4190 {
4191 bfd_byte b;
4192
4193 /* PowerPC PE appears to require that all executable files be
46f2f11d 4194 rounded up to the page size. */
252b5132
RH
4195 b = 0;
4196 if (bfd_seek (abfd,
dc810e39 4197 (file_ptr) BFD_ALIGN (sym_base, COFF_PAGE_SIZE) - 1,
252b5132 4198 SEEK_SET) != 0
dc810e39 4199 || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1)
b34976b6 4200 return FALSE;
252b5132
RH
4201 }
4202#endif
4203#endif
4204
4205 /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF
4206 backend linker, and obj_raw_syment_count is not valid until after
4207 coff_write_symbols is called. */
4208 if (obj_raw_syment_count (abfd) != 0)
4209 {
4210 internal_f.f_symptr = sym_base;
4211#ifdef RS6000COFF_C
4212 /* AIX appears to require that F_RELFLG not be set if there are
46f2f11d 4213 local symbols but no relocations. */
252b5132
RH
4214 internal_f.f_flags &=~ F_RELFLG;
4215#endif
4216 }
4217 else
4218 {
4219 if (long_section_names)
4220 internal_f.f_symptr = sym_base;
4221 else
4222 internal_f.f_symptr = 0;
4223 internal_f.f_flags |= F_LSYMS;
4224 }
4225
4226 if (text_sec)
4227 {
eea6121a 4228 internal_a.tsize = text_sec->size;
252b5132
RH
4229 internal_a.text_start = internal_a.tsize ? text_sec->vma : 0;
4230 }
4231 if (data_sec)
4232 {
eea6121a 4233 internal_a.dsize = data_sec->size;
252b5132
RH
4234 internal_a.data_start = internal_a.dsize ? data_sec->vma : 0;
4235 }
4236 if (bss_sec)
4237 {
eea6121a 4238 internal_a.bsize = bss_sec->size;
252b5132
RH
4239 if (internal_a.bsize && bss_sec->vma < internal_a.data_start)
4240 internal_a.data_start = bss_sec->vma;
4241 }
4242
4243 internal_a.entry = bfd_get_start_address (abfd);
4244 internal_f.f_nsyms = obj_raw_syment_count (abfd);
4245
4246#ifdef RS6000COFF_C
4247 if (xcoff_data (abfd)->full_aouthdr)
4248 {
4249 bfd_vma toc;
4250 asection *loader_sec;
4251
4252 internal_a.vstamp = 1;
4253
4254 internal_a.o_snentry = xcoff_data (abfd)->snentry;
4255 if (internal_a.o_snentry == 0)
4256 internal_a.entry = (bfd_vma) -1;
4257
4258 if (text_sec != NULL)
4259 {
4260 internal_a.o_sntext = text_sec->target_index;
4261 internal_a.o_algntext = bfd_get_section_alignment (abfd, text_sec);
4262 }
4263 else
4264 {
4265 internal_a.o_sntext = 0;
4266 internal_a.o_algntext = 0;
4267 }
4268 if (data_sec != NULL)
4269 {
4270 internal_a.o_sndata = data_sec->target_index;
4271 internal_a.o_algndata = bfd_get_section_alignment (abfd, data_sec);
4272 }
4273 else
4274 {
4275 internal_a.o_sndata = 0;
4276 internal_a.o_algndata = 0;
4277 }
4278 loader_sec = bfd_get_section_by_name (abfd, ".loader");
4279 if (loader_sec != NULL)
4280 internal_a.o_snloader = loader_sec->target_index;
4281 else
4282 internal_a.o_snloader = 0;
4283 if (bss_sec != NULL)
4284 internal_a.o_snbss = bss_sec->target_index;
4285 else
4286 internal_a.o_snbss = 0;
4287
4288 toc = xcoff_data (abfd)->toc;
4289 internal_a.o_toc = toc;
4290 internal_a.o_sntoc = xcoff_data (abfd)->sntoc;
4291
4292 internal_a.o_modtype = xcoff_data (abfd)->modtype;
4293 if (xcoff_data (abfd)->cputype != -1)
4294 internal_a.o_cputype = xcoff_data (abfd)->cputype;
4295 else
4296 {
4297 switch (bfd_get_arch (abfd))
4298 {
4299 case bfd_arch_rs6000:
4300 internal_a.o_cputype = 4;
4301 break;
4302 case bfd_arch_powerpc:
250d94fd 4303 if (bfd_get_mach (abfd) == bfd_mach_ppc)
252b5132
RH
4304 internal_a.o_cputype = 3;
4305 else
4306 internal_a.o_cputype = 1;
4307 break;
4308 default:
4309 abort ();
4310 }
4311 }
4312 internal_a.o_maxstack = xcoff_data (abfd)->maxstack;
4313 internal_a.o_maxdata = xcoff_data (abfd)->maxdata;
4314 }
4315#endif
4316
7920ce38 4317 /* Now write them. */
252b5132 4318 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
b34976b6 4319 return FALSE;
e60b52c6 4320
252b5132 4321 {
b5f303f0 4322 char * buff;
dc810e39 4323 bfd_size_type amount = bfd_coff_filhsz (abfd);
e60b52c6 4324
a50b1753 4325 buff = (char *) bfd_malloc (amount);
e60b52c6 4326 if (buff == NULL)
b34976b6 4327 return FALSE;
e60b52c6 4328
7920ce38
NC
4329 bfd_coff_swap_filehdr_out (abfd, & internal_f, buff);
4330 amount = bfd_bwrite (buff, amount, abfd);
e60b52c6 4331
2fca4467 4332 free (buff);
e60b52c6 4333
b5f303f0 4334 if (amount != bfd_coff_filhsz (abfd))
b34976b6 4335 return FALSE;
252b5132 4336 }
e60b52c6 4337
252b5132
RH
4338 if (abfd->flags & EXEC_P)
4339 {
e60b52c6 4340 /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR.
ed781d5d 4341 include/coff/pe.h sets AOUTSZ == sizeof (PEAOUTHDR)). */
b5f303f0 4342 char * buff;
dc810e39 4343 bfd_size_type amount = bfd_coff_aoutsz (abfd);
b5f303f0 4344
a50b1753 4345 buff = (char *) bfd_malloc (amount);
e60b52c6 4346 if (buff == NULL)
b34976b6 4347 return FALSE;
e60b52c6 4348
7920ce38
NC
4349 coff_swap_aouthdr_out (abfd, & internal_a, buff);
4350 amount = bfd_bwrite (buff, amount, abfd);
e60b52c6 4351
2fca4467 4352 free (buff);
e60b52c6 4353
b5f303f0 4354 if (amount != bfd_coff_aoutsz (abfd))
b34976b6 4355 return FALSE;
05793179
NC
4356
4357#ifdef COFF_IMAGE_WITH_PE
4358 if (! coff_apply_checksum (abfd))
b34976b6 4359 return FALSE;
05793179 4360#endif
252b5132
RH
4361 }
4362#ifdef RS6000COFF_C
4363 else
4364 {
4365 AOUTHDR buff;
4366 size_t size;
4367
4368 /* XCOFF seems to always write at least a small a.out header. */
7920ce38 4369 coff_swap_aouthdr_out (abfd, & internal_a, & buff);
252b5132 4370 if (xcoff_data (abfd)->full_aouthdr)
6b3b007b 4371 size = bfd_coff_aoutsz (abfd);
252b5132
RH
4372 else
4373 size = SMALL_AOUTSZ;
7920ce38 4374 if (bfd_bwrite (& buff, (bfd_size_type) size, abfd) != size)
b34976b6 4375 return FALSE;
252b5132
RH
4376 }
4377#endif
4378
b34976b6 4379 return TRUE;
252b5132
RH
4380}
4381
b34976b6 4382static bfd_boolean
7920ce38
NC
4383coff_set_section_contents (bfd * abfd,
4384 sec_ptr section,
4385 const void * location,
4386 file_ptr offset,
4387 bfd_size_type count)
252b5132 4388{
ed781d5d 4389 if (! abfd->output_has_begun) /* Set by bfd.c handler. */
252b5132
RH
4390 {
4391 if (! coff_compute_section_file_positions (abfd))
b34976b6 4392 return FALSE;
252b5132
RH
4393 }
4394
4395#if defined(_LIB) && !defined(TARG_AUX)
252b5132
RH
4396 /* The physical address field of a .lib section is used to hold the
4397 number of shared libraries in the section. This code counts the
4398 number of sections being written, and increments the lma field
4399 with the number.
4400
4401 I have found no documentation on the contents of this section.
4402 Experimentation indicates that the section contains zero or more
4403 records, each of which has the following structure:
4404
4405 - a (four byte) word holding the length of this record, in words,
4406 - a word that always seems to be set to "2",
4407 - the path to a shared library, null-terminated and then padded
4408 to a whole word boundary.
4409
4410 bfd_assert calls have been added to alert if an attempt is made
4411 to write a section which doesn't follow these assumptions. The
4412 code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe
4413 <robertl@arnet.com> (Thanks!).
e60b52c6 4414
ed781d5d 4415 Gvran Uddeborg <gvran@uddeborg.pp.se>. */
252b5132
RH
4416 if (strcmp (section->name, _LIB) == 0)
4417 {
4418 bfd_byte *rec, *recend;
4419
4420 rec = (bfd_byte *) location;
4421 recend = rec + count;
4422 while (rec < recend)
4423 {
4424 ++section->lma;
4425 rec += bfd_get_32 (abfd, rec) * 4;
4426 }
4427
4428 BFD_ASSERT (rec == recend);
4429 }
252b5132
RH
4430#endif
4431
4432 /* Don't write out bss sections - one way to do this is to
e60b52c6 4433 see if the filepos has not been set. */
252b5132 4434 if (section->filepos == 0)
b34976b6 4435 return TRUE;
252b5132 4436
dc810e39 4437 if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0)
b34976b6 4438 return FALSE;
252b5132 4439
dc810e39 4440 if (count == 0)
b34976b6 4441 return TRUE;
dc810e39
AM
4442
4443 return bfd_bwrite (location, count, abfd) == count;
252b5132 4444}
252b5132 4445
7920ce38
NC
4446static void *
4447buy_and_read (bfd *abfd, file_ptr where, bfd_size_type size)
252b5132 4448{
7920ce38
NC
4449 void * area = bfd_alloc (abfd, size);
4450
252b5132
RH
4451 if (!area)
4452 return (NULL);
dc810e39
AM
4453 if (bfd_seek (abfd, where, SEEK_SET) != 0
4454 || bfd_bread (area, size, abfd) != size)
252b5132
RH
4455 return (NULL);
4456 return (area);
7920ce38 4457}
252b5132
RH
4458
4459/*
4460SUBSUBSECTION
4461 Reading linenumbers
4462
4463 Creating the linenumber table is done by reading in the entire
4464 coff linenumber table, and creating another table for internal use.
4465
4466 A coff linenumber table is structured so that each function
4467 is marked as having a line number of 0. Each line within the
4468 function is an offset from the first line in the function. The
4469 base of the line number information for the table is stored in
4470 the symbol associated with the function.
4471
00692651
ILT
4472 Note: The PE format uses line number 0 for a flag indicating a
4473 new source file.
4474
252b5132
RH
4475 The information is copied from the external to the internal
4476 table, and each symbol which marks a function is marked by
4477 pointing its...
4478
4479 How does this work ?
252b5132
RH
4480*/
4481
e708816d
NC
4482static int
4483coff_sort_func_alent (const void * arg1, const void * arg2)
4484{
4485 const alent *al1 = *(const alent **) arg1;
4486 const alent *al2 = *(const alent **) arg2;
4487 const coff_symbol_type *s1 = (const coff_symbol_type *) (al1->u.sym);
4488 const coff_symbol_type *s2 = (const coff_symbol_type *) (al2->u.sym);
4489
4490 if (s1->symbol.value < s2->symbol.value)
4491 return -1;
4492 else if (s1->symbol.value > s2->symbol.value)
4493 return 1;
4494
4495 return 0;
4496}
4497
b34976b6 4498static bfd_boolean
7920ce38 4499coff_slurp_line_table (bfd *abfd, asection *asect)
252b5132
RH
4500{
4501 LINENO *native_lineno;
4502 alent *lineno_cache;
dc810e39 4503 bfd_size_type amt;
e708816d
NC
4504 unsigned int counter;
4505 alent *cache_ptr;
4506 bfd_vma prev_offset = 0;
4507 int ordered = 1;
4508 unsigned int nbr_func;
4509 LINENO *src;
252b5132 4510
7920ce38 4511 BFD_ASSERT (asect->lineno == NULL);
252b5132 4512
46f2f11d 4513 amt = ((bfd_size_type) asect->lineno_count + 1) * sizeof (alent);
a50b1753 4514 lineno_cache = (alent *) bfd_alloc (abfd, amt);
46f2f11d
AM
4515 if (lineno_cache == NULL)
4516 return FALSE;
4517
dc810e39
AM
4518 amt = (bfd_size_type) bfd_coff_linesz (abfd) * asect->lineno_count;
4519 native_lineno = (LINENO *) buy_and_read (abfd, asect->line_filepos, amt);
14abcef9
NC
4520 if (native_lineno == NULL)
4521 {
4522 (*_bfd_error_handler)
46f2f11d
AM
4523 (_("%B: warning: line number table read failed"), abfd);
4524 bfd_release (abfd, lineno_cache);
14abcef9
NC
4525 return FALSE;
4526 }
e708816d 4527
e708816d 4528 cache_ptr = lineno_cache;
46f2f11d 4529 asect->lineno = lineno_cache;
e708816d
NC
4530 src = native_lineno;
4531 nbr_func = 0;
4532
4533 for (counter = 0; counter < asect->lineno_count; counter++)
252b5132 4534 {
e708816d 4535 struct internal_lineno dst;
252b5132 4536
e708816d
NC
4537 bfd_coff_swap_lineno_in (abfd, src, &dst);
4538 cache_ptr->line_number = dst.l_lnno;
4539
4540 if (cache_ptr->line_number == 0)
252b5132 4541 {
e708816d
NC
4542 bfd_boolean warned;
4543 bfd_signed_vma symndx;
4544 coff_symbol_type *sym;
4545
4546 nbr_func++;
4547 warned = FALSE;
4548 symndx = dst.l_addr.l_symndx;
4549 if (symndx < 0
4550 || (bfd_vma) symndx >= obj_raw_syment_count (abfd))
4551 {
4552 (*_bfd_error_handler)
4553 (_("%B: warning: illegal symbol index %ld in line numbers"),
be5b8c8c 4554 abfd, (long) symndx);
e708816d
NC
4555 symndx = 0;
4556 warned = TRUE;
4557 }
ed781d5d 4558
e708816d
NC
4559 /* FIXME: We should not be casting between ints and
4560 pointers like this. */
4561 sym = ((coff_symbol_type *)
4562 ((symndx + obj_raw_syments (abfd))
4563 ->u.syment._n._n_n._n_zeroes));
4564 cache_ptr->u.sym = (asymbol *) sym;
4565 if (sym->lineno != NULL && ! warned)
4566 (*_bfd_error_handler)
4567 (_("%B: warning: duplicate line number information for `%s'"),
4568 abfd, bfd_asymbol_name (&sym->symbol));
4569
4570 sym->lineno = cache_ptr;
4571 if (sym->symbol.value < prev_offset)
4572 ordered = 0;
4573 prev_offset = sym->symbol.value;
4574 }
4575 else
4576 cache_ptr->u.offset = dst.l_addr.l_paddr
4577 - bfd_section_vma (abfd, asect);
4578
4579 cache_ptr++;
4580 src++;
4581 }
4582 cache_ptr->line_number = 0;
46f2f11d 4583 bfd_release (abfd, native_lineno);
e708816d
NC
4584
4585 /* On some systems (eg AIX5.3) the lineno table may not be sorted. */
4586 if (!ordered)
4587 {
4588 /* Sort the table. */
4589 alent **func_table;
4590 alent *n_lineno_cache;
4591
4592 /* Create a table of functions. */
a50b1753 4593 func_table = (alent **) bfd_alloc (abfd, nbr_func * sizeof (alent *));
e708816d
NC
4594 if (func_table != NULL)
4595 {
4596 alent **p = func_table;
4597 unsigned int i;
4598
4599 for (i = 0; i < counter; i++)
4600 if (lineno_cache[i].line_number == 0)
4601 *p++ = &lineno_cache[i];
252b5132 4602
e708816d
NC
4603 /* Sort by functions. */
4604 qsort (func_table, nbr_func, sizeof (alent *), coff_sort_func_alent);
4605
4606 /* Create the new sorted table. */
46f2f11d 4607 amt = ((bfd_size_type) asect->lineno_count + 1) * sizeof (alent);
a50b1753 4608 n_lineno_cache = (alent *) bfd_alloc (abfd, amt);
e708816d 4609 if (n_lineno_cache != NULL)
252b5132 4610 {
e708816d
NC
4611 alent *n_cache_ptr = n_lineno_cache;
4612
4613 for (i = 0; i < nbr_func; i++)
252b5132 4614 {
e708816d
NC
4615 coff_symbol_type *sym;
4616 alent *old_ptr = func_table[i];
4617
4618 /* Copy the function entry and update it. */
4619 *n_cache_ptr = *old_ptr;
4620 sym = (coff_symbol_type *)n_cache_ptr->u.sym;
4621 sym->lineno = n_cache_ptr;
4622 n_cache_ptr++;
4623 old_ptr++;
4624
4625 /* Copy the line number entries. */
4626 while (old_ptr->line_number != 0)
4627 *n_cache_ptr++ = *old_ptr++;
252b5132 4628 }
e708816d 4629 n_cache_ptr->line_number = 0;
46f2f11d 4630 memcpy (lineno_cache, n_lineno_cache, amt);
252b5132 4631 }
46f2f11d 4632 bfd_release (abfd, func_table);
252b5132 4633 }
252b5132 4634 }
e708816d 4635
b34976b6 4636 return TRUE;
252b5132
RH
4637}
4638
00692651
ILT
4639/* Slurp in the symbol table, converting it to generic form. Note
4640 that if coff_relocate_section is defined, the linker will read
4641 symbols via coff_link_add_symbols, rather than via this routine. */
4642
b34976b6 4643static bfd_boolean
7920ce38 4644coff_slurp_symbol_table (bfd * abfd)
252b5132
RH
4645{
4646 combined_entry_type *native_symbols;
4647 coff_symbol_type *cached_area;
4648 unsigned int *table_ptr;
dc810e39 4649 bfd_size_type amt;
252b5132
RH
4650 unsigned int number_of_symbols = 0;
4651
4652 if (obj_symbols (abfd))
b34976b6 4653 return TRUE;
252b5132 4654
ed781d5d 4655 /* Read in the symbol table. */
252b5132 4656 if ((native_symbols = coff_get_normalized_symtab (abfd)) == NULL)
ed781d5d 4657 return FALSE;
252b5132 4658
ed781d5d 4659 /* Allocate enough room for all the symbols in cached form. */
dc810e39
AM
4660 amt = obj_raw_syment_count (abfd);
4661 amt *= sizeof (coff_symbol_type);
a50b1753 4662 cached_area = (coff_symbol_type *) bfd_alloc (abfd, amt);
252b5132 4663 if (cached_area == NULL)
b34976b6 4664 return FALSE;
dc810e39
AM
4665
4666 amt = obj_raw_syment_count (abfd);
4667 amt *= sizeof (unsigned int);
a50b1753 4668 table_ptr = (unsigned int *) bfd_alloc (abfd, amt);
252b5132
RH
4669
4670 if (table_ptr == NULL)
b34976b6 4671 return FALSE;
252b5132
RH
4672 else
4673 {
4674 coff_symbol_type *dst = cached_area;
4675 unsigned int last_native_index = obj_raw_syment_count (abfd);
4676 unsigned int this_index = 0;
ed781d5d 4677
252b5132
RH
4678 while (this_index < last_native_index)
4679 {
4680 combined_entry_type *src = native_symbols + this_index;
4681 table_ptr[this_index] = number_of_symbols;
4682 dst->symbol.the_bfd = abfd;
4683
4684 dst->symbol.name = (char *) (src->u.syment._n._n_n._n_offset);
4685 /* We use the native name field to point to the cached field. */
d2df793a 4686 src->u.syment._n._n_n._n_zeroes = (bfd_hostptr_t) dst;
252b5132
RH
4687 dst->symbol.section = coff_section_from_bfd_index (abfd,
4688 src->u.syment.n_scnum);
4689 dst->symbol.flags = 0;
b34976b6 4690 dst->done_lineno = FALSE;
252b5132
RH
4691
4692 switch (src->u.syment.n_sclass)
4693 {
4694#ifdef I960
4695 case C_LEAFEXT:
ed781d5d 4696 /* Fall through to next case. */
252b5132
RH
4697#endif
4698
4699 case C_EXT:
4700 case C_WEAKEXT:
4701#if defined ARM
46f2f11d
AM
4702 case C_THUMBEXT:
4703 case C_THUMBEXTFUNC:
252b5132
RH
4704#endif
4705#ifdef RS6000COFF_C
4706 case C_HIDEXT:
4707#endif
4708#ifdef C_SYSTEM
ed781d5d 4709 case C_SYSTEM: /* System Wide variable. */
252b5132
RH
4710#endif
4711#ifdef COFF_WITH_PE
46f2f11d
AM
4712 /* In PE, 0x68 (104) denotes a section symbol. */
4713 case C_SECTION:
5d54c628 4714 /* In PE, 0x69 (105) denotes a weak external symbol. */
252b5132
RH
4715 case C_NT_WEAK:
4716#endif
5d54c628 4717 switch (coff_classify_symbol (abfd, &src->u.syment))
252b5132 4718 {
5d54c628 4719 case COFF_SYMBOL_GLOBAL:
252b5132 4720 dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL;
252b5132
RH
4721#if defined COFF_WITH_PE
4722 /* PE sets the symbol to a value relative to the
46f2f11d 4723 start of the section. */
252b5132
RH
4724 dst->symbol.value = src->u.syment.n_value;
4725#else
4726 dst->symbol.value = (src->u.syment.n_value
4727 - dst->symbol.section->vma);
4728#endif
252b5132 4729 if (ISFCN ((src->u.syment.n_type)))
7920ce38
NC
4730 /* A function ext does not go at the end of a
4731 file. */
4732 dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION;
5d54c628
ILT
4733 break;
4734
4735 case COFF_SYMBOL_COMMON:
4736 dst->symbol.section = bfd_com_section_ptr;
4737 dst->symbol.value = src->u.syment.n_value;
4738 break;
4739
4740 case COFF_SYMBOL_UNDEFINED:
4741 dst->symbol.section = bfd_und_section_ptr;
4742 dst->symbol.value = 0;
e60b52c6 4743 break;
5d54c628
ILT
4744
4745 case COFF_SYMBOL_PE_SECTION:
4746 dst->symbol.flags |= BSF_EXPORT | BSF_SECTION_SYM;
4747 dst->symbol.value = 0;
4748 break;
4749
4750 case COFF_SYMBOL_LOCAL:
4751 dst->symbol.flags = BSF_LOCAL;
4752#if defined COFF_WITH_PE
4753 /* PE sets the symbol to a value relative to the
46f2f11d 4754 start of the section. */
5d54c628
ILT
4755 dst->symbol.value = src->u.syment.n_value;
4756#else
4757 dst->symbol.value = (src->u.syment.n_value
4758 - dst->symbol.section->vma);
4759#endif
4760 if (ISFCN ((src->u.syment.n_type)))
4761 dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION;
4762 break;
252b5132
RH
4763 }
4764
4765#ifdef RS6000COFF_C
252b5132
RH
4766 /* A symbol with a csect entry should not go at the end. */
4767 if (src->u.syment.n_numaux > 0)
4768 dst->symbol.flags |= BSF_NOT_AT_END;
4769#endif
4770
4771#ifdef COFF_WITH_PE
4772 if (src->u.syment.n_sclass == C_NT_WEAK)
a181be0a
NC
4773 dst->symbol.flags |= BSF_WEAK;
4774
ec0ef80e
DD
4775 if (src->u.syment.n_sclass == C_SECTION
4776 && src->u.syment.n_scnum > 0)
eb1e0e80 4777 dst->symbol.flags = BSF_LOCAL;
252b5132 4778#endif
252b5132 4779 if (src->u.syment.n_sclass == C_WEAKEXT)
a181be0a 4780 dst->symbol.flags |= BSF_WEAK;
252b5132
RH
4781
4782 break;
4783
ed781d5d 4784 case C_STAT: /* Static. */
252b5132 4785#ifdef I960
ed781d5d 4786 case C_LEAFSTAT: /* Static leaf procedure. */
252b5132 4787#endif
e60b52c6 4788#if defined ARM
46f2f11d
AM
4789 case C_THUMBSTAT: /* Thumb static. */
4790 case C_THUMBLABEL: /* Thumb label. */
4791 case C_THUMBSTATFUNC:/* Thumb static function. */
85645aed
TG
4792#endif
4793#ifdef RS6000COFF_C
4794 case C_DWARF: /* A label in a dwarf section. */
4795 case C_INFO: /* A label in a comment section. */
252b5132 4796#endif
ed781d5d 4797 case C_LABEL: /* Label. */
00692651 4798 if (src->u.syment.n_scnum == N_DEBUG)
252b5132
RH
4799 dst->symbol.flags = BSF_DEBUGGING;
4800 else
4801 dst->symbol.flags = BSF_LOCAL;
4802
4803 /* Base the value as an index from the base of the
4804 section, if there is one. */
4805 if (dst->symbol.section)
4806 {
4807#if defined COFF_WITH_PE
4808 /* PE sets the symbol to a value relative to the
46f2f11d 4809 start of the section. */
252b5132
RH
4810 dst->symbol.value = src->u.syment.n_value;
4811#else
4812 dst->symbol.value = (src->u.syment.n_value
4813 - dst->symbol.section->vma);
4814#endif
4815 }
4816 else
4817 dst->symbol.value = src->u.syment.n_value;
4818 break;
4819
ed781d5d
NC
4820 case C_MOS: /* Member of structure. */
4821 case C_EOS: /* End of structure. */
ed781d5d
NC
4822 case C_REGPARM: /* Register parameter. */
4823 case C_REG: /* register variable. */
46f2f11d 4824 /* C_AUTOARG conflicts with TI COFF C_UEXT. */
81635ce4 4825#if !defined (TIC80COFF) && !defined (TICOFF)
252b5132 4826#ifdef C_AUTOARG
ed781d5d 4827 case C_AUTOARG: /* 960-specific storage class. */
252b5132
RH
4828#endif
4829#endif
ed781d5d 4830 case C_TPDEF: /* Type definition. */
252b5132 4831 case C_ARG:
ed781d5d
NC
4832 case C_AUTO: /* Automatic variable. */
4833 case C_FIELD: /* Bit field. */
4834 case C_ENTAG: /* Enumeration tag. */
4835 case C_MOE: /* Member of enumeration. */
4836 case C_MOU: /* Member of union. */
4837 case C_UNTAG: /* Union tag. */
252b5132
RH
4838 dst->symbol.flags = BSF_DEBUGGING;
4839 dst->symbol.value = (src->u.syment.n_value);
4840 break;
4841
ed781d5d
NC
4842 case C_FILE: /* File name. */
4843 case C_STRTAG: /* Structure tag. */
252b5132
RH
4844#ifdef RS6000COFF_C
4845 case C_GSYM:
4846 case C_LSYM:
4847 case C_PSYM:
4848 case C_RSYM:
4849 case C_RPSYM:
4850 case C_STSYM:
f9f3cf65 4851 case C_TCSYM:
252b5132 4852 case C_BCOMM:
f9f3cf65 4853 case C_ECOML:
252b5132
RH
4854 case C_ECOMM:
4855 case C_DECL:
4856 case C_ENTRY:
4857 case C_FUN:
4858 case C_ESTAT:
4859#endif
4860 dst->symbol.flags = BSF_DEBUGGING;
4861 dst->symbol.value = (src->u.syment.n_value);
4862 break;
4863
4864#ifdef RS6000COFF_C
ed781d5d
NC
4865 case C_BINCL: /* Beginning of include file. */
4866 case C_EINCL: /* Ending of include file. */
252b5132 4867 /* The value is actually a pointer into the line numbers
46f2f11d
AM
4868 of the file. We locate the line number entry, and
4869 set the section to the section which contains it, and
4870 the value to the index in that section. */
252b5132
RH
4871 {
4872 asection *sec;
4873
4874 dst->symbol.flags = BSF_DEBUGGING;
4875 for (sec = abfd->sections; sec != NULL; sec = sec->next)
4876 if (sec->line_filepos <= (file_ptr) src->u.syment.n_value
4877 && ((file_ptr) (sec->line_filepos
6b3b007b 4878 + sec->lineno_count * bfd_coff_linesz (abfd))
252b5132
RH
4879 > (file_ptr) src->u.syment.n_value))
4880 break;
4881 if (sec == NULL)
4882 dst->symbol.value = 0;
4883 else
4884 {
4885 dst->symbol.section = sec;
4886 dst->symbol.value = ((src->u.syment.n_value
4887 - sec->line_filepos)
6b3b007b 4888 / bfd_coff_linesz (abfd));
252b5132
RH
4889 src->fix_line = 1;
4890 }
4891 }
4892 break;
4893
4894 case C_BSTAT:
4895 dst->symbol.flags = BSF_DEBUGGING;
4896
4897 /* The value is actually a symbol index. Save a pointer
4898 to the symbol instead of the index. FIXME: This
4899 should use a union. */
4900 src->u.syment.n_value =
d68cd58c 4901 (long) (intptr_t) (native_symbols + src->u.syment.n_value);
252b5132
RH
4902 dst->symbol.value = src->u.syment.n_value;
4903 src->fix_value = 1;
4904 break;
4905#endif
4906
ed781d5d
NC
4907 case C_BLOCK: /* ".bb" or ".eb". */
4908 case C_FCN: /* ".bf" or ".ef" (or PE ".lf"). */
4909 case C_EFCN: /* Physical end of function. */
252b5132
RH
4910#if defined COFF_WITH_PE
4911 /* PE sets the symbol to a value relative to the start
4912 of the section. */
4913 dst->symbol.value = src->u.syment.n_value;
d510f9a6
ILT
4914 if (strcmp (dst->symbol.name, ".bf") != 0)
4915 {
4916 /* PE uses funny values for .ef and .lf; don't
46f2f11d 4917 relocate them. */
d510f9a6
ILT
4918 dst->symbol.flags = BSF_DEBUGGING;
4919 }
4920 else
4921 dst->symbol.flags = BSF_DEBUGGING | BSF_DEBUGGING_RELOC;
252b5132
RH
4922#else
4923 /* Base the value as an index from the base of the
4924 section. */
d510f9a6 4925 dst->symbol.flags = BSF_LOCAL;
252b5132
RH
4926 dst->symbol.value = (src->u.syment.n_value
4927 - dst->symbol.section->vma);
4928#endif
4929 break;
4930
ed781d5d 4931 case C_STATLAB: /* Static load time label. */
46f2f11d
AM
4932 dst->symbol.value = src->u.syment.n_value;
4933 dst->symbol.flags = BSF_GLOBAL;
4934 break;
34cbe64e 4935
252b5132 4936 case C_NULL:
00692651 4937 /* PE DLLs sometimes have zeroed out symbols for some
46f2f11d 4938 reason. Just ignore them without a warning. */
00692651
ILT
4939 if (src->u.syment.n_type == 0
4940 && src->u.syment.n_value == 0
4941 && src->u.syment.n_scnum == 0)
4942 break;
53dd76d3
TG
4943#ifdef RS6000COFF_C
4944 /* XCOFF specific: deleted entry. */
4945 if (src->u.syment.n_value == C_NULL_VALUE)
4946 break;
4947#endif
00692651 4948 /* Fall through. */
ed781d5d
NC
4949 case C_EXTDEF: /* External definition. */
4950 case C_ULABEL: /* Undefined label. */
4951 case C_USTATIC: /* Undefined static. */
252b5132 4952#ifndef COFF_WITH_PE
46f2f11d
AM
4953 /* C_LINE in regular coff is 0x68. NT has taken over this storage
4954 class to represent a section symbol. */
ed781d5d 4955 case C_LINE: /* line # reformatted as symbol table entry. */
252b5132 4956 /* NT uses 0x67 for a weak symbol, not C_ALIAS. */
ed781d5d 4957 case C_ALIAS: /* Duplicate tag. */
252b5132 4958#endif
ed781d5d 4959 /* New storage classes for TI COFF. */
81635ce4 4960#if defined(TIC80COFF) || defined(TICOFF)
ed781d5d 4961 case C_UEXT: /* Tentative external definition. */
252b5132 4962#endif
ed781d5d
NC
4963 case C_EXTLAB: /* External load time label. */
4964 case C_HIDDEN: /* Ext symbol in dmert public lib. */
252b5132
RH
4965 default:
4966 (*_bfd_error_handler)
d003868e
AM
4967 (_("%B: Unrecognized storage class %d for %s symbol `%s'"),
4968 abfd, src->u.syment.n_sclass,
252b5132
RH
4969 dst->symbol.section->name, dst->symbol.name);
4970 dst->symbol.flags = BSF_DEBUGGING;
4971 dst->symbol.value = (src->u.syment.n_value);
4972 break;
4973 }
4974
252b5132
RH
4975 dst->native = src;
4976
4977 dst->symbol.udata.i = 0;
7920ce38 4978 dst->lineno = NULL;
252b5132
RH
4979 this_index += (src->u.syment.n_numaux) + 1;
4980 dst++;
4981 number_of_symbols++;
ed781d5d
NC
4982 }
4983 }
252b5132
RH
4984
4985 obj_symbols (abfd) = cached_area;
4986 obj_raw_syments (abfd) = native_symbols;
4987
4988 bfd_get_symcount (abfd) = number_of_symbols;
4989 obj_convert (abfd) = table_ptr;
ed781d5d 4990 /* Slurp the line tables for each section too. */
252b5132
RH
4991 {
4992 asection *p;
ed781d5d 4993
252b5132
RH
4994 p = abfd->sections;
4995 while (p)
4996 {
4997 coff_slurp_line_table (abfd, p);
4998 p = p->next;
4999 }
5000 }
ed781d5d 5001
b34976b6 5002 return TRUE;
7920ce38 5003}
252b5132 5004
5d54c628
ILT
5005/* Classify a COFF symbol. A couple of targets have globally visible
5006 symbols which are not class C_EXT, and this handles those. It also
5007 recognizes some special PE cases. */
252b5132 5008
5d54c628 5009static enum coff_symbol_classification
7920ce38
NC
5010coff_classify_symbol (bfd *abfd,
5011 struct internal_syment *syment)
5d54c628
ILT
5012{
5013 /* FIXME: This partially duplicates the switch in
5014 coff_slurp_symbol_table. */
5015 switch (syment->n_sclass)
5016 {
5017 case C_EXT:
5018 case C_WEAKEXT:
252b5132 5019#ifdef I960
5d54c628 5020 case C_LEAFEXT:
252b5132 5021#endif
5d54c628
ILT
5022#ifdef ARM
5023 case C_THUMBEXT:
5024 case C_THUMBEXTFUNC:
252b5132 5025#endif
5d54c628
ILT
5026#ifdef C_SYSTEM
5027 case C_SYSTEM:
252b5132 5028#endif
5d54c628
ILT
5029#ifdef COFF_WITH_PE
5030 case C_NT_WEAK:
5031#endif
5032 if (syment->n_scnum == 0)
5033 {
5034 if (syment->n_value == 0)
5035 return COFF_SYMBOL_UNDEFINED;
5036 else
5037 return COFF_SYMBOL_COMMON;
5038 }
5039 return COFF_SYMBOL_GLOBAL;
5040
5041 default:
5042 break;
5043 }
252b5132 5044
5d54c628
ILT
5045#ifdef COFF_WITH_PE
5046 if (syment->n_sclass == C_STAT)
5047 {
5048 if (syment->n_scnum == 0)
7920ce38
NC
5049 /* The Microsoft compiler sometimes generates these if a
5050 small static function is inlined every time it is used.
5051 The function is discarded, but the symbol table entry
5052 remains. */
5053 return COFF_SYMBOL_LOCAL;
252b5132 5054
0717ebb7 5055#ifdef STRICT_PE_FORMAT
bd826630 5056 /* This is correct for Microsoft generated objects, but it
46f2f11d 5057 breaks gas generated objects. */
5d54c628
ILT
5058 if (syment->n_value == 0)
5059 {
5060 asection *sec;
5061 char buf[SYMNMLEN + 1];
5062
5063 sec = coff_section_from_bfd_index (abfd, syment->n_scnum);
5064 if (sec != NULL
5065 && (strcmp (bfd_get_section_name (abfd, sec),
5066 _bfd_coff_internal_syment_name (abfd, syment, buf))
5067 == 0))
5068 return COFF_SYMBOL_PE_SECTION;
5069 }
bd826630 5070#endif
252b5132 5071
5d54c628
ILT
5072 return COFF_SYMBOL_LOCAL;
5073 }
252b5132 5074
5d54c628
ILT
5075 if (syment->n_sclass == C_SECTION)
5076 {
5077 /* In some cases in a DLL generated by the Microsoft linker, the
46f2f11d
AM
5078 n_value field will contain garbage. FIXME: This should
5079 probably be handled by the swapping function instead. */
5d54c628
ILT
5080 syment->n_value = 0;
5081 if (syment->n_scnum == 0)
5082 return COFF_SYMBOL_UNDEFINED;
5083 return COFF_SYMBOL_PE_SECTION;
5084 }
5085#endif /* COFF_WITH_PE */
252b5132 5086
5d54c628 5087 /* If it is not a global symbol, we presume it is a local symbol. */
5d54c628
ILT
5088 if (syment->n_scnum == 0)
5089 {
5090 char buf[SYMNMLEN + 1];
252b5132 5091
5d54c628 5092 (*_bfd_error_handler)
d003868e
AM
5093 (_("warning: %B: local symbol `%s' has no section"),
5094 abfd, _bfd_coff_internal_syment_name (abfd, syment, buf));
5d54c628 5095 }
252b5132 5096
5d54c628
ILT
5097 return COFF_SYMBOL_LOCAL;
5098}
252b5132
RH
5099
5100/*
5101SUBSUBSECTION
5102 Reading relocations
5103
5104 Coff relocations are easily transformed into the internal BFD form
5105 (@code{arelent}).
5106
5107 Reading a coff relocation table is done in the following stages:
5108
5109 o Read the entire coff relocation table into memory.
5110
5111 o Process each relocation in turn; first swap it from the
5112 external to the internal form.
5113
5114 o Turn the symbol referenced in the relocation's symbol index
5115 into a pointer into the canonical symbol table.
5116 This table is the same as the one returned by a call to
5117 @code{bfd_canonicalize_symtab}. The back end will call that
5118 routine and save the result if a canonicalization hasn't been done.
5119
5120 o The reloc index is turned into a pointer to a howto
5121 structure, in a back end specific way. For instance, the 386
5122 and 960 use the @code{r_type} to directly produce an index
5123 into a howto table vector; the 88k subtracts a number from the
5124 @code{r_type} field and creates an addend field.
252b5132
RH
5125*/
5126
5127#ifndef CALC_ADDEND
46f2f11d
AM
5128#define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
5129 { \
5130 coff_symbol_type *coffsym = NULL; \
5131 \
5132 if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
5133 coffsym = (obj_symbols (abfd) \
5134 + (cache_ptr->sym_ptr_ptr - symbols)); \
5135 else if (ptr) \
5136 coffsym = coff_symbol_from (abfd, ptr); \
5137 if (coffsym != NULL \
5138 && coffsym->native->u.syment.n_scnum == 0) \
5139 cache_ptr->addend = 0; \
5140 else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
5141 && ptr->section != NULL) \
5142 cache_ptr->addend = - (ptr->section->vma + ptr->value); \
5143 else \
5144 cache_ptr->addend = 0; \
252b5132
RH
5145 }
5146#endif
5147
b34976b6 5148static bfd_boolean
7920ce38 5149coff_slurp_reloc_table (bfd * abfd, sec_ptr asect, asymbol ** symbols)
252b5132
RH
5150{
5151 RELOC *native_relocs;
5152 arelent *reloc_cache;
5153 arelent *cache_ptr;
252b5132 5154 unsigned int idx;
dc810e39 5155 bfd_size_type amt;
252b5132
RH
5156
5157 if (asect->relocation)
b34976b6 5158 return TRUE;
252b5132 5159 if (asect->reloc_count == 0)
b34976b6 5160 return TRUE;
252b5132 5161 if (asect->flags & SEC_CONSTRUCTOR)
b34976b6 5162 return TRUE;
252b5132 5163 if (!coff_slurp_symbol_table (abfd))
b34976b6 5164 return FALSE;
7920ce38 5165
dc810e39
AM
5166 amt = (bfd_size_type) bfd_coff_relsz (abfd) * asect->reloc_count;
5167 native_relocs = (RELOC *) buy_and_read (abfd, asect->rel_filepos, amt);
5168 amt = (bfd_size_type) asect->reloc_count * sizeof (arelent);
a50b1753 5169 reloc_cache = (arelent *) bfd_alloc (abfd, amt);
252b5132 5170
a50b2160 5171 if (reloc_cache == NULL || native_relocs == NULL)
b34976b6 5172 return FALSE;
252b5132 5173
252b5132
RH
5174 for (idx = 0; idx < asect->reloc_count; idx++)
5175 {
5176 struct internal_reloc dst;
5177 struct external_reloc *src;
5178#ifndef RELOC_PROCESSING
5179 asymbol *ptr;
5180#endif
5181
5182 cache_ptr = reloc_cache + idx;
5183 src = native_relocs + idx;
5184
40b1c6c5 5185 dst.r_offset = 0;
252b5132
RH
5186 coff_swap_reloc_in (abfd, src, &dst);
5187
5188#ifdef RELOC_PROCESSING
5189 RELOC_PROCESSING (cache_ptr, &dst, symbols, abfd, asect);
5190#else
5191 cache_ptr->address = dst.r_vaddr;
5192
5193 if (dst.r_symndx != -1)
5194 {
5195 if (dst.r_symndx < 0 || dst.r_symndx >= obj_conv_table_size (abfd))
5196 {
5197 (*_bfd_error_handler)
d003868e 5198 (_("%B: warning: illegal symbol index %ld in relocs"),
be5b8c8c 5199 abfd, (long) dst.r_symndx);
252b5132
RH
5200 cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
5201 ptr = NULL;
5202 }
5203 else
5204 {
5205 cache_ptr->sym_ptr_ptr = (symbols
5206 + obj_convert (abfd)[dst.r_symndx]);
5207 ptr = *(cache_ptr->sym_ptr_ptr);
5208 }
5209 }
5210 else
5211 {
5212 cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
5213 ptr = NULL;
5214 }
5215
5216 /* The symbols definitions that we have read in have been
5217 relocated as if their sections started at 0. But the offsets
5218 refering to the symbols in the raw data have not been
5219 modified, so we have to have a negative addend to compensate.
5220
ed781d5d 5221 Note that symbols which used to be common must be left alone. */
252b5132 5222
ed781d5d 5223 /* Calculate any reloc addend by looking at the symbol. */
252b5132 5224 CALC_ADDEND (abfd, ptr, dst, cache_ptr);
c7e2358a 5225 (void) ptr;
252b5132
RH
5226
5227 cache_ptr->address -= asect->vma;
7920ce38 5228 /* !! cache_ptr->section = NULL;*/
252b5132 5229
ed781d5d 5230 /* Fill in the cache_ptr->howto field from dst.r_type. */
252b5132
RH
5231 RTYPE2HOWTO (cache_ptr, &dst);
5232#endif /* RELOC_PROCESSING */
5233
5234 if (cache_ptr->howto == NULL)
5235 {
5236 (*_bfd_error_handler)
d003868e
AM
5237 (_("%B: illegal relocation type %d at address 0x%lx"),
5238 abfd, dst.r_type, (long) dst.r_vaddr);
252b5132 5239 bfd_set_error (bfd_error_bad_value);
b34976b6 5240 return FALSE;
252b5132
RH
5241 }
5242 }
5243
5244 asect->relocation = reloc_cache;
b34976b6 5245 return TRUE;
252b5132
RH
5246}
5247
5248#ifndef coff_rtype_to_howto
5249#ifdef RTYPE2HOWTO
5250
5251/* Get the howto structure for a reloc. This is only used if the file
5252 including this one defines coff_relocate_section to be
5253 _bfd_coff_generic_relocate_section, so it is OK if it does not
5254 always work. It is the responsibility of the including file to
5255 make sure it is reasonable if it is needed. */
5256
252b5132 5257static reloc_howto_type *
7920ce38
NC
5258coff_rtype_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
5259 asection *sec ATTRIBUTE_UNUSED,
5260 struct internal_reloc *rel,
5261 struct coff_link_hash_entry *h ATTRIBUTE_UNUSED,
5262 struct internal_syment *sym ATTRIBUTE_UNUSED,
5263 bfd_vma *addendp ATTRIBUTE_UNUSED)
252b5132
RH
5264{
5265 arelent genrel;
5266
964597d0 5267 genrel.howto = NULL;
252b5132
RH
5268 RTYPE2HOWTO (&genrel, rel);
5269 return genrel.howto;
5270}
5271
5272#else /* ! defined (RTYPE2HOWTO) */
5273
5274#define coff_rtype_to_howto NULL
5275
5276#endif /* ! defined (RTYPE2HOWTO) */
5277#endif /* ! defined (coff_rtype_to_howto) */
5278
5279/* This is stupid. This function should be a boolean predicate. */
7920ce38 5280
252b5132 5281static long
7920ce38
NC
5282coff_canonicalize_reloc (bfd * abfd,
5283 sec_ptr section,
5284 arelent ** relptr,
5285 asymbol ** symbols)
252b5132
RH
5286{
5287 arelent *tblptr = section->relocation;
5288 unsigned int count = 0;
5289
252b5132
RH
5290 if (section->flags & SEC_CONSTRUCTOR)
5291 {
ed781d5d
NC
5292 /* This section has relocs made up by us, they are not in the
5293 file, so take them out of their chain and place them into
5294 the data area provided. */
252b5132 5295 arelent_chain *chain = section->constructor_chain;
ed781d5d 5296
252b5132
RH
5297 for (count = 0; count < section->reloc_count; count++)
5298 {
5299 *relptr++ = &chain->relent;
5300 chain = chain->next;
5301 }
252b5132
RH
5302 }
5303 else
5304 {
5305 if (! coff_slurp_reloc_table (abfd, section, symbols))
5306 return -1;
5307
5308 tblptr = section->relocation;
5309
5310 for (; count++ < section->reloc_count;)
5311 *relptr++ = tblptr++;
252b5132
RH
5312 }
5313 *relptr = 0;
5314 return section->reloc_count;
5315}
5316
252b5132
RH
5317#ifndef coff_reloc16_estimate
5318#define coff_reloc16_estimate dummy_reloc16_estimate
5319
252b5132 5320static int
7920ce38
NC
5321dummy_reloc16_estimate (bfd *abfd ATTRIBUTE_UNUSED,
5322 asection *input_section ATTRIBUTE_UNUSED,
5323 arelent *reloc ATTRIBUTE_UNUSED,
5324 unsigned int shrink ATTRIBUTE_UNUSED,
5325 struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
252b5132
RH
5326{
5327 abort ();
00692651 5328 return 0;
252b5132
RH
5329}
5330
5331#endif
5332
5333#ifndef coff_reloc16_extra_cases
5334
5335#define coff_reloc16_extra_cases dummy_reloc16_extra_cases
5336
5337/* This works even if abort is not declared in any header file. */
5338
252b5132 5339static void
7920ce38
NC
5340dummy_reloc16_extra_cases (bfd *abfd ATTRIBUTE_UNUSED,
5341 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
5342 struct bfd_link_order *link_order ATTRIBUTE_UNUSED,
5343 arelent *reloc ATTRIBUTE_UNUSED,
5344 bfd_byte *data ATTRIBUTE_UNUSED,
5345 unsigned int *src_ptr ATTRIBUTE_UNUSED,
5346 unsigned int *dst_ptr ATTRIBUTE_UNUSED)
252b5132
RH
5347{
5348 abort ();
5349}
5350#endif
5351
e2d34d7d
DJ
5352#ifndef coff_bfd_link_hash_table_free
5353#define coff_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
5354#endif
5355
252b5132
RH
5356/* If coff_relocate_section is defined, we can use the optimized COFF
5357 backend linker. Otherwise we must continue to use the old linker. */
7920ce38 5358
252b5132 5359#ifdef coff_relocate_section
7920ce38 5360
252b5132
RH
5361#ifndef coff_bfd_link_hash_table_create
5362#define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create
5363#endif
5364#ifndef coff_bfd_link_add_symbols
5365#define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols
5366#endif
5367#ifndef coff_bfd_final_link
5368#define coff_bfd_final_link _bfd_coff_final_link
5369#endif
7920ce38 5370
252b5132 5371#else /* ! defined (coff_relocate_section) */
7920ce38 5372
252b5132
RH
5373#define coff_relocate_section NULL
5374#ifndef coff_bfd_link_hash_table_create
5375#define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
5376#endif
5377#ifndef coff_bfd_link_add_symbols
5378#define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols
5379#endif
5380#define coff_bfd_final_link _bfd_generic_final_link
7920ce38 5381
252b5132
RH
5382#endif /* ! defined (coff_relocate_section) */
5383
7920ce38 5384#define coff_bfd_link_just_syms _bfd_generic_link_just_syms
1338dd10
PB
5385#define coff_bfd_copy_link_hash_symbol_type \
5386 _bfd_generic_copy_link_hash_symbol_type
252b5132
RH
5387#define coff_bfd_link_split_section _bfd_generic_link_split_section
5388
5389#ifndef coff_start_final_link
5390#define coff_start_final_link NULL
5391#endif
5392
5393#ifndef coff_adjust_symndx
5394#define coff_adjust_symndx NULL
5395#endif
5396
5397#ifndef coff_link_add_one_symbol
5398#define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol
5399#endif
5400
5401#ifndef coff_link_output_has_begun
5402
b34976b6 5403static bfd_boolean
7920ce38
NC
5404coff_link_output_has_begun (bfd * abfd,
5405 struct coff_final_link_info * info ATTRIBUTE_UNUSED)
252b5132
RH
5406{
5407 return abfd->output_has_begun;
5408}
5409#endif
5410
5411#ifndef coff_final_link_postscript
5412
b34976b6 5413static bfd_boolean
7920ce38
NC
5414coff_final_link_postscript (bfd * abfd ATTRIBUTE_UNUSED,
5415 struct coff_final_link_info * pfinfo ATTRIBUTE_UNUSED)
252b5132 5416{
b34976b6 5417 return TRUE;
252b5132
RH
5418}
5419#endif
5420
5421#ifndef coff_SWAP_aux_in
5422#define coff_SWAP_aux_in coff_swap_aux_in
5423#endif
5424#ifndef coff_SWAP_sym_in
5425#define coff_SWAP_sym_in coff_swap_sym_in
5426#endif
5427#ifndef coff_SWAP_lineno_in
5428#define coff_SWAP_lineno_in coff_swap_lineno_in
5429#endif
5430#ifndef coff_SWAP_aux_out
5431#define coff_SWAP_aux_out coff_swap_aux_out
5432#endif
5433#ifndef coff_SWAP_sym_out
5434#define coff_SWAP_sym_out coff_swap_sym_out
5435#endif
5436#ifndef coff_SWAP_lineno_out
5437#define coff_SWAP_lineno_out coff_swap_lineno_out
5438#endif
5439#ifndef coff_SWAP_reloc_out
5440#define coff_SWAP_reloc_out coff_swap_reloc_out
5441#endif
5442#ifndef coff_SWAP_filehdr_out
5443#define coff_SWAP_filehdr_out coff_swap_filehdr_out
5444#endif
5445#ifndef coff_SWAP_aouthdr_out
5446#define coff_SWAP_aouthdr_out coff_swap_aouthdr_out
5447#endif
5448#ifndef coff_SWAP_scnhdr_out
5449#define coff_SWAP_scnhdr_out coff_swap_scnhdr_out
5450#endif
5451#ifndef coff_SWAP_reloc_in
5452#define coff_SWAP_reloc_in coff_swap_reloc_in
5453#endif
5454#ifndef coff_SWAP_filehdr_in
5455#define coff_SWAP_filehdr_in coff_swap_filehdr_in
5456#endif
5457#ifndef coff_SWAP_aouthdr_in
5458#define coff_SWAP_aouthdr_in coff_swap_aouthdr_in
5459#endif
5460#ifndef coff_SWAP_scnhdr_in
5461#define coff_SWAP_scnhdr_in coff_swap_scnhdr_in
5462#endif
5463
88183869 5464static bfd_coff_backend_data bfd_coff_std_swap_table ATTRIBUTE_UNUSED =
252b5132
RH
5465{
5466 coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in,
5467 coff_SWAP_aux_out, coff_SWAP_sym_out,
5468 coff_SWAP_lineno_out, coff_SWAP_reloc_out,
5469 coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out,
5470 coff_SWAP_scnhdr_out,
692b7d62 5471 FILHSZ, AOUTSZ, SCNHSZ, SYMESZ, AUXESZ, RELSZ, LINESZ, FILNMLEN,
252b5132 5472#ifdef COFF_LONG_FILENAMES
b34976b6 5473 TRUE,
252b5132 5474#else
b34976b6 5475 FALSE,
252b5132 5476#endif
88183869 5477 COFF_DEFAULT_LONG_SECTION_NAMES,
a022216b 5478 COFF_DEFAULT_SECTION_ALIGNMENT_POWER,
7f6d05e8 5479#ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
b34976b6 5480 TRUE,
7f6d05e8 5481#else
b34976b6 5482 FALSE,
7f6d05e8
CP
5483#endif
5484#ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5485 4,
5486#else
5487 2,
5488#endif
252b5132
RH
5489 coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in,
5490 coff_SWAP_reloc_in, coff_bad_format_hook, coff_set_arch_mach_hook,
5491 coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook,
5492 coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook,
5493 coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate,
5d54c628 5494 coff_classify_symbol, coff_compute_section_file_positions,
252b5132
RH
5495 coff_start_final_link, coff_relocate_section, coff_rtype_to_howto,
5496 coff_adjust_symndx, coff_link_add_one_symbol,
2b5c217d
NC
5497 coff_link_output_has_begun, coff_final_link_postscript,
5498 bfd_pe_print_pdata
252b5132
RH
5499};
5500
5a5b9651
SS
5501#ifdef TICOFF
5502/* COFF0 differs in file/section header size and relocation entry size. */
7920ce38 5503
88183869 5504static bfd_coff_backend_data ticoff0_swap_table =
5a5b9651
SS
5505{
5506 coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in,
5507 coff_SWAP_aux_out, coff_SWAP_sym_out,
5508 coff_SWAP_lineno_out, coff_SWAP_reloc_out,
5509 coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out,
5510 coff_SWAP_scnhdr_out,
5511 FILHSZ_V0, AOUTSZ, SCNHSZ_V01, SYMESZ, AUXESZ, RELSZ_V0, LINESZ, FILNMLEN,
5512#ifdef COFF_LONG_FILENAMES
5513 TRUE,
5514#else
5515 FALSE,
5516#endif
88183869 5517 COFF_DEFAULT_LONG_SECTION_NAMES,
5a5b9651
SS
5518 COFF_DEFAULT_SECTION_ALIGNMENT_POWER,
5519#ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5520 TRUE,
5521#else
5522 FALSE,
5523#endif
5524#ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5525 4,
5526#else
5527 2,
5528#endif
5529 coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in,
5530 coff_SWAP_reloc_in, ticoff0_bad_format_hook, coff_set_arch_mach_hook,
5531 coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook,
5532 coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook,
5533 coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate,
5534 coff_classify_symbol, coff_compute_section_file_positions,
5535 coff_start_final_link, coff_relocate_section, coff_rtype_to_howto,
5536 coff_adjust_symndx, coff_link_add_one_symbol,
2b5c217d
NC
5537 coff_link_output_has_begun, coff_final_link_postscript,
5538 bfd_pe_print_pdata
5a5b9651
SS
5539};
5540#endif
5541
5542#ifdef TICOFF
5543/* COFF1 differs in section header size. */
7920ce38 5544
88183869 5545static bfd_coff_backend_data ticoff1_swap_table =
5a5b9651
SS
5546{
5547 coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in,
5548 coff_SWAP_aux_out, coff_SWAP_sym_out,
5549 coff_SWAP_lineno_out, coff_SWAP_reloc_out,
5550 coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out,
5551 coff_SWAP_scnhdr_out,
5552 FILHSZ, AOUTSZ, SCNHSZ_V01, SYMESZ, AUXESZ, RELSZ, LINESZ, FILNMLEN,
5553#ifdef COFF_LONG_FILENAMES
5554 TRUE,
5555#else
5556 FALSE,
5557#endif
88183869 5558 COFF_DEFAULT_LONG_SECTION_NAMES,
5a5b9651
SS
5559 COFF_DEFAULT_SECTION_ALIGNMENT_POWER,
5560#ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5561 TRUE,
5562#else
5563 FALSE,
5564#endif
5565#ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5566 4,
5567#else
5568 2,
5569#endif
5570 coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in,
5571 coff_SWAP_reloc_in, ticoff1_bad_format_hook, coff_set_arch_mach_hook,
5572 coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook,
5573 coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook,
5574 coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate,
5575 coff_classify_symbol, coff_compute_section_file_positions,
5576 coff_start_final_link, coff_relocate_section, coff_rtype_to_howto,
5577 coff_adjust_symndx, coff_link_add_one_symbol,
2b5c217d
NC
5578 coff_link_output_has_begun, coff_final_link_postscript,
5579 bfd_pe_print_pdata /* huh */
5a5b9651
SS
5580};
5581#endif
5582
252b5132 5583#ifndef coff_close_and_cleanup
46f2f11d 5584#define coff_close_and_cleanup _bfd_generic_close_and_cleanup
252b5132
RH
5585#endif
5586
5587#ifndef coff_bfd_free_cached_info
46f2f11d 5588#define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
252b5132
RH
5589#endif
5590
5591#ifndef coff_get_section_contents
46f2f11d 5592#define coff_get_section_contents _bfd_generic_get_section_contents
252b5132
RH
5593#endif
5594
5595#ifndef coff_bfd_copy_private_symbol_data
5596#define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data
5597#endif
5598
80fccad2
BW
5599#ifndef coff_bfd_copy_private_header_data
5600#define coff_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data
5601#endif
5602
252b5132
RH
5603#ifndef coff_bfd_copy_private_section_data
5604#define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data
5605#endif
5606
e60b52c6 5607#ifndef coff_bfd_copy_private_bfd_data
252b5132
RH
5608#define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
5609#endif
5610
5611#ifndef coff_bfd_merge_private_bfd_data
5612#define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
5613#endif
5614
5615#ifndef coff_bfd_set_private_flags
46f2f11d 5616#define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
252b5132
RH
5617#endif
5618
e60b52c6 5619#ifndef coff_bfd_print_private_bfd_data
252b5132
RH
5620#define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
5621#endif
5622
5623#ifndef coff_bfd_is_local_label_name
5624#define coff_bfd_is_local_label_name _bfd_coff_is_local_label_name
5625#endif
5626
3c9458e9
NC
5627#ifndef coff_bfd_is_target_special_symbol
5628#define coff_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
5629#endif
5630
252b5132
RH
5631#ifndef coff_read_minisymbols
5632#define coff_read_minisymbols _bfd_generic_read_minisymbols
5633#endif
5634
5635#ifndef coff_minisymbol_to_symbol
5636#define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
5637#endif
5638
5639/* The reloc lookup routine must be supplied by each individual COFF
5640 backend. */
5641#ifndef coff_bfd_reloc_type_lookup
5642#define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
5643#endif
157090f7
AM
5644#ifndef coff_bfd_reloc_name_lookup
5645#define coff_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
5646#endif
252b5132
RH
5647
5648#ifndef coff_bfd_get_relocated_section_contents
5649#define coff_bfd_get_relocated_section_contents \
5650 bfd_generic_get_relocated_section_contents
5651#endif
5652
5653#ifndef coff_bfd_relax_section
5654#define coff_bfd_relax_section bfd_generic_relax_section
5655#endif
5656
5657#ifndef coff_bfd_gc_sections
5658#define coff_bfd_gc_sections bfd_generic_gc_sections
5659#endif
c3c89269 5660
ae17ab41
CM
5661#ifndef coff_bfd_lookup_section_flags
5662#define coff_bfd_lookup_section_flags bfd_generic_lookup_section_flags
5663#endif
5664
8550eb6e
JJ
5665#ifndef coff_bfd_merge_sections
5666#define coff_bfd_merge_sections bfd_generic_merge_sections
5667#endif
5668
72adc230
AM
5669#ifndef coff_bfd_is_group_section
5670#define coff_bfd_is_group_section bfd_generic_is_group_section
5671#endif
5672
e61463e1
AM
5673#ifndef coff_bfd_discard_group
5674#define coff_bfd_discard_group bfd_generic_discard_group
5675#endif
5676
082b7297
L
5677#ifndef coff_section_already_linked
5678#define coff_section_already_linked \
c77ec726 5679 _bfd_coff_section_already_linked
082b7297
L
5680#endif
5681
3023e3f6
RS
5682#ifndef coff_bfd_define_common_symbol
5683#define coff_bfd_define_common_symbol bfd_generic_define_common_symbol
5684#endif
5685
3fa78519 5686#define CREATE_BIG_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
4c117b10
ILT
5687const bfd_target VAR = \
5688{ \
5689 NAME , \
5690 bfd_target_coff_flavour, \
7920ce38
NC
5691 BFD_ENDIAN_BIG, /* Data byte order is big. */ \
5692 BFD_ENDIAN_BIG, /* Header byte order is big. */ \
4c117b10
ILT
5693 /* object flags */ \
5694 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5695 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5696 /* section flags */ \
5697 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
7920ce38
NC
5698 UNDER, /* Leading symbol underscore. */ \
5699 '/', /* AR_pad_char. */ \
5700 15, /* AR_max_namelen. */ \
0aabe54e 5701 0, /* match priority. */ \
46f2f11d 5702 \
4c117b10
ILT
5703 /* Data conversion functions. */ \
5704 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5705 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5706 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
46f2f11d 5707 \
4c117b10
ILT
5708 /* Header conversion functions. */ \
5709 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5710 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5711 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5712 \
7920ce38 5713 /* bfd_check_format. */ \
4c117b10
ILT
5714 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5715 _bfd_dummy_target }, \
7920ce38 5716 /* bfd_set_format. */ \
4c117b10 5717 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
7920ce38 5718 /* bfd_write_contents. */ \
4c117b10
ILT
5719 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5720 bfd_false }, \
5721 \
5722 BFD_JUMP_TABLE_GENERIC (coff), \
5723 BFD_JUMP_TABLE_COPY (coff), \
5724 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5725 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5726 BFD_JUMP_TABLE_SYMBOLS (coff), \
5727 BFD_JUMP_TABLE_RELOCS (coff), \
5728 BFD_JUMP_TABLE_WRITE (coff), \
5729 BFD_JUMP_TABLE_LINK (coff), \
5730 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
46f2f11d 5731 \
4c117b10 5732 ALTERNATIVE, \
46f2f11d 5733 \
3fa78519 5734 SWAP_TABLE \
c3c89269
NC
5735};
5736
3fa78519
SS
5737#define CREATE_BIGHDR_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5738const bfd_target VAR = \
5739{ \
5740 NAME , \
5741 bfd_target_coff_flavour, \
7920ce38
NC
5742 BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \
5743 BFD_ENDIAN_BIG, /* Header byte order is big. */ \
3fa78519
SS
5744 /* object flags */ \
5745 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5746 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5747 /* section flags */ \
5748 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
7920ce38
NC
5749 UNDER, /* Leading symbol underscore. */ \
5750 '/', /* AR_pad_char. */ \
5751 15, /* AR_max_namelen. */ \
0aabe54e 5752 0, /* match priority. */ \
46f2f11d 5753 \
3fa78519
SS
5754 /* Data conversion functions. */ \
5755 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5756 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5757 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
46f2f11d 5758 \
3fa78519
SS
5759 /* Header conversion functions. */ \
5760 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5761 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5762 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5763 \
7920ce38 5764 /* bfd_check_format. */ \
3fa78519
SS
5765 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5766 _bfd_dummy_target }, \
7920ce38 5767 /* bfd_set_format. */ \
3fa78519 5768 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
7920ce38 5769 /* bfd_write_contents. */ \
3fa78519
SS
5770 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5771 bfd_false }, \
5772 \
5773 BFD_JUMP_TABLE_GENERIC (coff), \
5774 BFD_JUMP_TABLE_COPY (coff), \
5775 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5776 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5777 BFD_JUMP_TABLE_SYMBOLS (coff), \
5778 BFD_JUMP_TABLE_RELOCS (coff), \
5779 BFD_JUMP_TABLE_WRITE (coff), \
5780 BFD_JUMP_TABLE_LINK (coff), \
5781 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
46f2f11d 5782 \
3fa78519 5783 ALTERNATIVE, \
46f2f11d 5784 \
3fa78519
SS
5785 SWAP_TABLE \
5786};
5787
5788#define CREATE_LITTLE_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
4c117b10
ILT
5789const bfd_target VAR = \
5790{ \
5791 NAME , \
5792 bfd_target_coff_flavour, \
7920ce38
NC
5793 BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \
5794 BFD_ENDIAN_LITTLE, /* Header byte order is little. */ \
4c117b10
ILT
5795 /* object flags */ \
5796 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5797 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5798 /* section flags */ \
5799 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
7920ce38
NC
5800 UNDER, /* Leading symbol underscore. */ \
5801 '/', /* AR_pad_char. */ \
5802 15, /* AR_max_namelen. */ \
0aabe54e 5803 0, /* match priority. */ \
4c117b10
ILT
5804 \
5805 /* Data conversion functions. */ \
5806 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
5807 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
5808 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
5809 /* Header conversion functions. */ \
5810 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
5811 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
5812 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
7920ce38 5813 /* bfd_check_format. */ \
4c117b10
ILT
5814 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5815 _bfd_dummy_target }, \
7920ce38 5816 /* bfd_set_format. */ \
4c117b10 5817 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
7920ce38 5818 /* bfd_write_contents. */ \
4c117b10
ILT
5819 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5820 bfd_false }, \
5821 \
5822 BFD_JUMP_TABLE_GENERIC (coff), \
5823 BFD_JUMP_TABLE_COPY (coff), \
5824 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5825 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5826 BFD_JUMP_TABLE_SYMBOLS (coff), \
5827 BFD_JUMP_TABLE_RELOCS (coff), \
5828 BFD_JUMP_TABLE_WRITE (coff), \
5829 BFD_JUMP_TABLE_LINK (coff), \
5830 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5831 \
5832 ALTERNATIVE, \
46f2f11d 5833 \
3fa78519 5834 SWAP_TABLE \
c3c89269 5835};