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6d7c88c3 | 1 | /* Support for the generic parts of most COFF variants, for BFD. |
d812945a | 2 | Copyright 1990, 91, 92, 93, 94, 95, 1996 Free Software Foundation, Inc. |
7a8b18b6 | 3 | Written by Cygnus Support. |
0f268757 | 4 | |
7a8b18b6 | 5 | This file is part of BFD, the Binary File Descriptor library. |
0f268757 | 6 | |
7a8b18b6 SC |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
0f268757 | 11 | |
7a8b18b6 SC |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
0f268757 | 16 | |
7a8b18b6 SC |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software | |
e9614321 | 19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
6f715d66 | 20 | |
9783e04a | 21 | /* |
6590a8c9 | 22 | Most of this hacked by Steve Chamberlain, |
9783e04a | 23 | sac@cygnus.com |
6590a8c9 | 24 | */ |
9fda1a39 | 25 | /* |
6f715d66 | 26 | |
9fda1a39 SC |
27 | SECTION |
28 | coff backends | |
29 | ||
9fda1a39 | 30 | BFD supports a number of different flavours of coff format. |
c188b0be | 31 | The major differences between formats are the sizes and |
9fda1a39 | 32 | alignments of fields in structures on disk, and the occasional |
9783e04a | 33 | extra field. |
9fda1a39 | 34 | |
c188b0be | 35 | Coff in all its varieties is implemented with a few common |
9fda1a39 SC |
36 | files and a number of implementation specific files. For |
37 | example, The 88k bcs coff format is implemented in the file | |
c188b0be DM |
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 | |
075caafd ILT |
42 | defines the relocations used by the 88k format |
43 | @xref{Relocations}. | |
9fda1a39 SC |
44 | |
45 | The Intel i960 processor version of coff is implemented in | |
c188b0be DM |
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} | |
9783e04a | 48 | rather than @file{coff-m88k.h}. |
9fda1a39 SC |
49 | |
50 | SUBSECTION | |
c188b0be | 51 | Porting to a new version of coff |
9fda1a39 | 52 | |
9fda1a39 | 53 | The recommended method is to select from the existing |
c188b0be DM |
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 | |
9fda1a39 | 56 | the one you select, and that your coff flavour is called foo. |
c188b0be DM |
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} | |
9fda1a39 | 60 | so that your new back end is used. Alter the shapes of the |
c188b0be | 61 | structures in @file{../include/coff/foo.h} so that they match |
9fda1a39 | 62 | what you need. You will probably also have to add |
c188b0be | 63 | @code{#ifdef}s to the code in @file{coff/internal.h} and |
9783e04a | 64 | @file{coffcode.h} if your version of coff is too wild. |
9fda1a39 SC |
65 | |
66 | You can verify that your new BFD backend works quite simply by | |
c188b0be DM |
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 | |
9fda1a39 SC |
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 | ||
75 | SUBSECTION | |
c188b0be | 76 | How the coff backend works |
9fda1a39 | 77 | |
075caafd | 78 | SUBSUBSECTION |
c188b0be | 79 | File layout |
075caafd ILT |
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 | |
c188b0be | 94 | @file{coffcode.h}. This header file includes executable C code. |
075caafd ILT |
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 | ||
9fda1a39 | 111 | SUBSUBSECTION |
c188b0be | 112 | Bit twiddling |
9fda1a39 | 113 | |
9fda1a39 | 114 | Each flavour of coff supported in BFD has its own header file |
c188b0be DM |
115 | describing the external layout of the structures. There is also |
116 | an internal description of the coff layout, in | |
117 | @file{coff/internal.h}. A major function of the | |
9fda1a39 SC |
118 | coff backend is swapping the bytes and twiddling the bits to |
119 | translate the external form of the structures into the normal | |
120 | internal form. This is all performed in the | |
121 | @code{bfd_swap}_@i{thing}_@i{direction} routines. Some | |
122 | elements are different sizes between different versions of | |
c188b0be | 123 | coff; it is the duty of the coff version specific include file |
9fda1a39 | 124 | to override the definitions of various packing routines in |
c188b0be | 125 | @file{coffcode.h}. E.g., the size of line number entry in coff is |
9fda1a39 SC |
126 | sometimes 16 bits, and sometimes 32 bits. @code{#define}ing |
127 | @code{PUT_LNSZ_LNNO} and @code{GET_LNSZ_LNNO} will select the | |
128 | correct one. No doubt, some day someone will find a version of | |
c188b0be | 129 | coff which has a varying field size not catered to at the |
9783e04a | 130 | moment. To port BFD, that person will have to add more @code{#defines}. |
9fda1a39 SC |
131 | Three of the bit twiddling routines are exported to |
132 | @code{gdb}; @code{coff_swap_aux_in}, @code{coff_swap_sym_in} | |
133 | and @code{coff_swap_linno_in}. @code{GDB} reads the symbol | |
134 | table on its own, but uses BFD to fix things up. More of the | |
135 | bit twiddlers are exported for @code{gas}; | |
136 | @code{coff_swap_aux_out}, @code{coff_swap_sym_out}, | |
137 | @code{coff_swap_lineno_out}, @code{coff_swap_reloc_out}, | |
138 | @code{coff_swap_filehdr_out}, @code{coff_swap_aouthdr_out}, | |
139 | @code{coff_swap_scnhdr_out}. @code{Gas} currently keeps track | |
140 | of all the symbol table and reloc drudgery itself, thereby | |
141 | saving the internal BFD overhead, but uses BFD to swap things | |
c188b0be | 142 | on the way out, making cross ports much safer. Doing so also |
9fda1a39 SC |
143 | allows BFD (and thus the linker) to use the same header files |
144 | as @code{gas}, which makes one avenue to disaster disappear. | |
145 | ||
146 | SUBSUBSECTION | |
c188b0be | 147 | Symbol reading |
9fda1a39 | 148 | |
9fda1a39 SC |
149 | The simple canonical form for symbols used by BFD is not rich |
150 | enough to keep all the information available in a coff symbol | |
c188b0be | 151 | table. The back end gets around this problem by keeping the original |
9783e04a | 152 | symbol table around, "behind the scenes". |
9fda1a39 SC |
153 | |
154 | When a symbol table is requested (through a call to | |
c188b0be | 155 | @code{bfd_canonicalize_symtab}), a request gets through to |
075caafd | 156 | @code{coff_get_normalized_symtab}. This reads the symbol table from |
9fda1a39 SC |
157 | the coff file and swaps all the structures inside into the |
158 | internal form. It also fixes up all the pointers in the table | |
159 | (represented in the file by offsets from the first symbol in | |
160 | the table) into physical pointers to elements in the new | |
161 | internal table. This involves some work since the meanings of | |
c188b0be | 162 | fields change depending upon context: a field that is a |
9fda1a39 | 163 | pointer to another structure in the symbol table at one moment |
c188b0be | 164 | may be the size in bytes of a structure at the next. Another |
9fda1a39 | 165 | pass is made over the table. All symbols which mark file names |
616ebcfd | 166 | (<<C_FILE>> symbols) are modified so that the internal |
9fda1a39 SC |
167 | string points to the value in the auxent (the real filename) |
168 | rather than the normal text associated with the symbol | |
9783e04a | 169 | (@code{".file"}). |
9fda1a39 SC |
170 | |
171 | At this time the symbol names are moved around. Coff stores | |
172 | all symbols less than nine characters long physically | |
c188b0be | 173 | within the symbol table; longer strings are kept at the end of |
9fda1a39 | 174 | the file in the string table. This pass moves all strings |
c188b0be | 175 | into memory and replaces them with pointers to the strings. |
9fda1a39 SC |
176 | |
177 | ||
178 | The symbol table is massaged once again, this time to create | |
179 | the canonical table used by the BFD application. Each symbol | |
180 | is inspected in turn, and a decision made (using the | |
181 | @code{sclass} field) about the various flags to set in the | |
c188b0be | 182 | @code{asymbol}. @xref{Symbols}. The generated canonical table |
9783e04a | 183 | shares strings with the hidden internal symbol table. |
9fda1a39 SC |
184 | |
185 | Any linenumbers are read from the coff file too, and attached | |
9783e04a | 186 | to the symbols which own the functions the linenumbers belong to. |
9fda1a39 SC |
187 | |
188 | SUBSUBSECTION | |
c188b0be | 189 | Symbol writing |
9fda1a39 | 190 | |
9fda1a39 SC |
191 | Writing a symbol to a coff file which didn't come from a coff |
192 | file will lose any debugging information. The @code{asymbol} | |
c188b0be DM |
193 | structure remembers the BFD from which the symbol was taken, and on |
194 | output the back end makes sure that the same destination target as | |
9fda1a39 SC |
195 | source target is present. |
196 | ||
197 | When the symbols have come from a coff file then all the | |
198 | debugging information is preserved. | |
199 | ||
200 | Symbol tables are provided for writing to the back end in a | |
201 | vector of pointers to pointers. This allows applications like | |
202 | the linker to accumulate and output large symbol tables | |
203 | without having to do too much byte copying. | |
204 | ||
9fda1a39 SC |
205 | This function runs through the provided symbol table and |
206 | patches each symbol marked as a file place holder | |
207 | (@code{C_FILE}) to point to the next file place holder in the | |
208 | list. It also marks each @code{offset} field in the list with | |
209 | the offset from the first symbol of the current symbol. | |
210 | ||
211 | Another function of this procedure is to turn the canonical | |
212 | value form of BFD into the form used by coff. Internally, BFD | |
213 | expects symbol values to be offsets from a section base; so a | |
214 | symbol physically at 0x120, but in a section starting at | |
215 | 0x100, would have the value 0x20. Coff expects symbols to | |
216 | contain their final value, so symbols have their values | |
217 | changed at this point to reflect their sum with their owning | |
c188b0be | 218 | section. This transformation uses the |
9fda1a39 | 219 | <<output_section>> field of the @code{asymbol}'s |
9783e04a | 220 | @code{asection} @xref{Sections}. |
9fda1a39 | 221 | |
c188b0be | 222 | o <<coff_mangle_symbols>> |
616ebcfd | 223 | |
9fda1a39 SC |
224 | This routine runs though the provided symbol table and uses |
225 | the offsets generated by the previous pass and the pointers | |
226 | generated when the symbol table was read in to create the | |
227 | structured hierachy required by coff. It changes each pointer | |
c188b0be | 228 | to a symbol into the index into the symbol table of the asymbol. |
9fda1a39 | 229 | |
c188b0be | 230 | o <<coff_write_symbols>> |
616ebcfd | 231 | |
9fda1a39 SC |
232 | This routine runs through the symbol table and patches up the |
233 | symbols from their internal form into the coff way, calls the | |
9783e04a | 234 | bit twiddlers, and writes out the table to the file. |
6f715d66 | 235 | |
9fda1a39 | 236 | */ |
6f715d66 | 237 | |
9fda1a39 | 238 | /* |
616ebcfd SC |
239 | INTERNAL_DEFINITION |
240 | coff_symbol_type | |
6f715d66 | 241 | |
616ebcfd | 242 | DESCRIPTION |
c188b0be DM |
243 | The hidden information for an <<asymbol>> is described in a |
244 | <<combined_entry_type>>: | |
6f715d66 | 245 | |
616ebcfd | 246 | CODE_FRAGMENT |
e98e6ec1 | 247 | . |
9783e04a | 248 | .typedef struct coff_ptr_struct |
616ebcfd SC |
249 | .{ |
250 | . | |
251 | . {* Remembers the offset from the first symbol in the file for | |
252 | . this symbol. Generated by coff_renumber_symbols. *} | |
253 | .unsigned int offset; | |
254 | . | |
9783e04a DM |
255 | . {* Should the value of this symbol be renumbered. Used for |
256 | . XCOFF C_BSTAT symbols. Set by coff_slurp_symbol_table. *} | |
257 | .unsigned int fix_value : 1; | |
258 | . | |
616ebcfd SC |
259 | . {* Should the tag field of this symbol be renumbered. |
260 | . Created by coff_pointerize_aux. *} | |
9783e04a | 261 | .unsigned int fix_tag : 1; |
616ebcfd SC |
262 | . |
263 | . {* Should the endidx field of this symbol be renumbered. | |
264 | . Created by coff_pointerize_aux. *} | |
9783e04a DM |
265 | .unsigned int fix_end : 1; |
266 | . | |
267 | . {* Should the x_csect.x_scnlen field be renumbered. | |
0fc9ada9 | 268 | . Created by coff_pointerize_aux. *} |
9783e04a | 269 | .unsigned int fix_scnlen : 1; |
616ebcfd | 270 | . |
49488f2b ILT |
271 | . {* Fix up an XCOFF C_BINCL/C_EINCL symbol. The value is the |
272 | . index into the line number entries. Set by | |
273 | . coff_slurp_symbol_table. *} | |
274 | .unsigned int fix_line : 1; | |
275 | . | |
616ebcfd SC |
276 | . {* The container for the symbol structure as read and translated |
277 | . from the file. *} | |
278 | . | |
279 | .union { | |
280 | . union internal_auxent auxent; | |
281 | . struct internal_syment syment; | |
282 | . } u; | |
283 | .} combined_entry_type; | |
284 | . | |
285 | . | |
286 | .{* Each canonical asymbol really looks like this: *} | |
287 | . | |
288 | .typedef struct coff_symbol_struct | |
289 | .{ | |
290 | . {* The actual symbol which the rest of BFD works with *} | |
291 | .asymbol symbol; | |
292 | . | |
293 | . {* A pointer to the hidden information for this symbol *} | |
294 | .combined_entry_type *native; | |
295 | . | |
296 | . {* A pointer to the linenumber information for this symbol *} | |
297 | .struct lineno_cache_entry *lineno; | |
298 | . | |
d58b7049 SC |
299 | . {* Have the line numbers been relocated yet ? *} |
300 | .boolean done_lineno; | |
616ebcfd | 301 | .} coff_symbol_type; |
6f715d66 | 302 | |
6f715d66 | 303 | |
0f268757 SC |
304 | */ |
305 | ||
dd984644 | 306 | #ifdef COFF_WITH_PE |
beee31b1 SC |
307 | #include "peicode.h" |
308 | #else | |
309 | #include "coffswap.h" | |
89665c85 SC |
310 | #endif |
311 | ||
0f268757 SC |
312 | \f |
313 | /* void warning(); */ | |
6f715d66 | 314 | |
cbdc7909 JG |
315 | /* |
316 | * Return a word with STYP_* (scnhdr.s_flags) flags set to represent the | |
41f50af0 SC |
317 | * incoming SEC_* flags. The inverse of this function is styp_to_sec_flags(). |
318 | * NOTE: If you add to/change this routine, you should mirror the changes | |
319 | * in styp_to_sec_flags(). | |
320 | */ | |
cbdc7909 | 321 | static long |
fbb61b50 SC |
322 | sec_to_styp_flags (sec_name, sec_flags) |
323 | CONST char *sec_name; | |
324 | flagword sec_flags; | |
41f50af0 | 325 | { |
47cf4997 SC |
326 | long styp_flags = 0; |
327 | ||
9783e04a | 328 | if (!strcmp (sec_name, _TEXT)) |
fbb61b50 SC |
329 | { |
330 | styp_flags = STYP_TEXT; | |
331 | } | |
9783e04a | 332 | else if (!strcmp (sec_name, _DATA)) |
fbb61b50 SC |
333 | { |
334 | styp_flags = STYP_DATA; | |
fbb61b50 | 335 | } |
9783e04a | 336 | else if (!strcmp (sec_name, _BSS)) |
fbb61b50 SC |
337 | { |
338 | styp_flags = STYP_BSS; | |
8c4a1ace | 339 | #ifdef _COMMENT |
9783e04a DM |
340 | } |
341 | else if (!strcmp (sec_name, _COMMENT)) | |
fbb61b50 SC |
342 | { |
343 | styp_flags = STYP_INFO; | |
9783e04a | 344 | #endif /* _COMMENT */ |
b26059aa | 345 | #ifdef _LIB |
fbb61b50 | 346 | } |
9783e04a | 347 | else if (!strcmp (sec_name, _LIB)) |
fbb61b50 SC |
348 | { |
349 | styp_flags = STYP_LIB; | |
9783e04a | 350 | #endif /* _LIB */ |
35d835c4 | 351 | #ifdef _LIT |
fbb61b50 | 352 | } |
35d835c4 | 353 | else if (!strcmp (sec_name, _LIT)) |
fbb61b50 SC |
354 | { |
355 | styp_flags = STYP_LIT; | |
35d835c4 | 356 | #endif /* _LIT */ |
fbb61b50 | 357 | } |
9783e04a | 358 | else if (!strcmp (sec_name, ".debug")) |
fbb61b50 | 359 | { |
9783e04a DM |
360 | #ifdef STYP_DEBUG |
361 | styp_flags = STYP_DEBUG; | |
362 | #else | |
fbb61b50 | 363 | styp_flags = STYP_INFO; |
9783e04a | 364 | #endif |
fbb61b50 | 365 | } |
89665c85 | 366 | else if (!strncmp (sec_name, ".stab", 5)) |
fbb61b50 SC |
367 | { |
368 | styp_flags = STYP_INFO; | |
369 | } | |
3ea928f5 SC |
370 | #ifdef COFF_WITH_PE |
371 | else if (!strcmp (sec_name, ".edata")) | |
372 | { | |
373 | styp_flags = STYP_DATA; | |
374 | } | |
5f710a3a ILT |
375 | #endif |
376 | #ifdef RS6000COFF_C | |
377 | else if (!strcmp (sec_name, _PAD)) | |
378 | { | |
379 | styp_flags = STYP_PAD; | |
380 | } | |
381 | else if (!strcmp (sec_name, _LOADER)) | |
382 | { | |
383 | styp_flags = STYP_LOADER; | |
384 | } | |
3ea928f5 | 385 | #endif |
47cf4997 | 386 | /* Try and figure out what it should be */ |
9783e04a | 387 | else if (sec_flags & SEC_CODE) |
fbb61b50 SC |
388 | { |
389 | styp_flags = STYP_TEXT; | |
390 | } | |
9783e04a | 391 | else if (sec_flags & SEC_DATA) |
fbb61b50 SC |
392 | { |
393 | styp_flags = STYP_DATA; | |
394 | } | |
47cf4997 | 395 | else if (sec_flags & SEC_READONLY) |
fbb61b50 | 396 | { |
47cf4997 | 397 | #ifdef STYP_LIT /* 29k readonly text/data section */ |
fbb61b50 | 398 | styp_flags = STYP_LIT; |
41f50af0 | 399 | #else |
fbb61b50 | 400 | styp_flags = STYP_TEXT; |
9783e04a | 401 | #endif /* STYP_LIT */ |
fbb61b50 | 402 | } |
47cf4997 | 403 | else if (sec_flags & SEC_LOAD) |
fbb61b50 SC |
404 | { |
405 | styp_flags = STYP_TEXT; | |
406 | } | |
407 | else if (sec_flags & SEC_ALLOC) | |
408 | { | |
409 | styp_flags = STYP_BSS; | |
410 | } | |
41f50af0 | 411 | |
b26059aa | 412 | #ifdef STYP_NOLOAD |
c16313f0 | 413 | if ((sec_flags & (SEC_NEVER_LOAD | SEC_COFF_SHARED_LIBRARY)) != 0) |
9783e04a | 414 | styp_flags |= STYP_NOLOAD; |
b26059aa ILT |
415 | #endif |
416 | ||
5a28331f ILT |
417 | #ifdef COFF_WITH_PE |
418 | if (sec_flags & SEC_LINK_ONCE) | |
419 | styp_flags |= IMAGE_SCN_LNK_COMDAT; | |
420 | #endif | |
421 | ||
9783e04a | 422 | return (styp_flags); |
41f50af0 | 423 | } |
cbdc7909 | 424 | /* |
41f50af0 | 425 | * Return a word with SEC_* flags set to represent the incoming |
cbdc7909 JG |
426 | * STYP_* flags (from scnhdr.s_flags). The inverse of this |
427 | * function is sec_to_styp_flags(). | |
41f50af0 SC |
428 | * NOTE: If you add to/change this routine, you should mirror the changes |
429 | * in sec_to_styp_flags(). | |
430 | */ | |
cbdc7909 | 431 | static flagword |
e8fbe6d9 ILT |
432 | styp_to_sec_flags (abfd, hdr, name) |
433 | bfd *abfd; | |
57a1867e | 434 | PTR hdr; |
e8fbe6d9 | 435 | const char *name; |
41f50af0 | 436 | { |
075caafd ILT |
437 | struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr; |
438 | long styp_flags = internal_s->s_flags; | |
9783e04a | 439 | flagword sec_flags = 0; |
41f50af0 | 440 | |
b26059aa ILT |
441 | #ifdef STYP_NOLOAD |
442 | if (styp_flags & STYP_NOLOAD) | |
9783e04a DM |
443 | { |
444 | sec_flags |= SEC_NEVER_LOAD; | |
445 | } | |
b26059aa ILT |
446 | #endif /* STYP_NOLOAD */ |
447 | ||
8f718ed3 ILT |
448 | /* For 386 COFF, at least, an unloadable text or data section is |
449 | actually a shared library section. */ | |
450 | if (styp_flags & STYP_TEXT) | |
9783e04a DM |
451 | { |
452 | if (sec_flags & SEC_NEVER_LOAD) | |
c16313f0 | 453 | sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY; |
9783e04a DM |
454 | else |
455 | sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
456 | } | |
8f718ed3 | 457 | else if (styp_flags & STYP_DATA) |
9783e04a DM |
458 | { |
459 | if (sec_flags & SEC_NEVER_LOAD) | |
c16313f0 | 460 | sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY; |
9783e04a DM |
461 | else |
462 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
463 | } | |
464 | else if (styp_flags & STYP_BSS) | |
465 | { | |
35d835c4 | 466 | #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY |
9783e04a | 467 | if (sec_flags & SEC_NEVER_LOAD) |
c16313f0 | 468 | sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY; |
9783e04a | 469 | else |
35d835c4 | 470 | #endif |
9783e04a DM |
471 | sec_flags |= SEC_ALLOC; |
472 | } | |
473 | else if (styp_flags & STYP_INFO) | |
fbb61b50 | 474 | { |
b5b056fc KR |
475 | /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is |
476 | defined. coff_compute_section_file_positions uses | |
477 | COFF_PAGE_SIZE to ensure that the low order bits of the | |
478 | section VMA and the file offset match. If we don't know | |
479 | COFF_PAGE_SIZE, we can't ensure the correct correspondence, | |
480 | and demand page loading of the file will fail. */ | |
481 | #ifdef COFF_PAGE_SIZE | |
482 | sec_flags |= SEC_DEBUGGING; | |
483 | #endif | |
fbb61b50 | 484 | } |
28a0c103 ILT |
485 | else if (styp_flags & STYP_PAD) |
486 | { | |
487 | sec_flags = 0; | |
488 | } | |
e8fbe6d9 ILT |
489 | else if (strcmp (name, _TEXT) == 0) |
490 | { | |
491 | if (sec_flags & SEC_NEVER_LOAD) | |
492 | sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY; | |
493 | else | |
494 | sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
495 | } | |
1af85fbb | 496 | else if (strcmp (name, _DATA) == 0) |
e8fbe6d9 ILT |
497 | { |
498 | if (sec_flags & SEC_NEVER_LOAD) | |
499 | sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY; | |
500 | else | |
501 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
502 | } | |
503 | else if (strcmp (name, _BSS) == 0) | |
504 | { | |
505 | #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY | |
506 | if (sec_flags & SEC_NEVER_LOAD) | |
507 | sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY; | |
508 | else | |
509 | #endif | |
510 | sec_flags |= SEC_ALLOC; | |
511 | } | |
512 | else if (strcmp (name, ".debug") == 0 | |
513 | #ifdef _COMMENT | |
514 | || strcmp (name, _COMMENT) == 0 | |
515 | #endif | |
89665c85 | 516 | || strncmp (name, ".stab", 5) == 0) |
e8fbe6d9 ILT |
517 | { |
518 | #ifdef COFF_PAGE_SIZE | |
519 | sec_flags |= SEC_DEBUGGING; | |
520 | #endif | |
521 | } | |
522 | #ifdef _LIB | |
523 | else if (strcmp (name, _LIB) == 0) | |
524 | ; | |
525 | #endif | |
526 | #ifdef _LIT | |
527 | else if (strcmp (name, _LIT) == 0) | |
528 | { | |
529 | sec_flags = SEC_LOAD | SEC_ALLOC | SEC_READONLY; | |
530 | } | |
531 | #endif | |
8070f29d | 532 | else |
9783e04a DM |
533 | { |
534 | sec_flags |= SEC_ALLOC | SEC_LOAD; | |
535 | } | |
b26059aa | 536 | |
8070f29d KR |
537 | #ifdef STYP_LIT /* A29k readonly text/data section type */ |
538 | if ((styp_flags & STYP_LIT) == STYP_LIT) | |
9783e04a DM |
539 | { |
540 | sec_flags = (SEC_LOAD | SEC_ALLOC | SEC_READONLY); | |
541 | } | |
542 | #endif /* STYP_LIT */ | |
8070f29d KR |
543 | #ifdef STYP_OTHER_LOAD /* Other loaded sections */ |
544 | if (styp_flags & STYP_OTHER_LOAD) | |
9783e04a DM |
545 | { |
546 | sec_flags = (SEC_LOAD | SEC_ALLOC); | |
547 | } | |
548 | #endif /* STYP_SDATA */ | |
41f50af0 | 549 | |
5a28331f ILT |
550 | #ifdef COFF_WITH_PE |
551 | if (styp_flags & IMAGE_SCN_LNK_REMOVE) | |
552 | sec_flags |= SEC_EXCLUDE; | |
553 | ||
554 | if (styp_flags & IMAGE_SCN_LNK_COMDAT) | |
555 | { | |
556 | sec_flags |= SEC_LINK_ONCE; | |
557 | ||
558 | /* Unfortunately, the PE format stores essential information in | |
559 | the symbol table, of all places. We need to extract that | |
560 | information now, so that objdump and the linker will know how | |
561 | to handle the section without worrying about the symbols. We | |
562 | can't call slurp_symtab, because the linker doesn't want the | |
563 | swapped symbols. */ | |
564 | ||
565 | if (_bfd_coff_get_external_symbols (abfd)) | |
566 | { | |
567 | bfd_byte *esym, *esymend; | |
568 | ||
569 | esym = (bfd_byte *) obj_coff_external_syms (abfd); | |
570 | esymend = esym + obj_raw_syment_count (abfd) * SYMESZ; | |
571 | ||
572 | while (esym < esymend) | |
573 | { | |
574 | struct internal_syment isym; | |
575 | ||
576 | bfd_coff_swap_sym_in (abfd, (PTR) esym, (PTR) &isym); | |
577 | ||
578 | if (sizeof (internal_s->s_name) > SYMNMLEN) | |
579 | { | |
580 | /* This case implies that the matching symbol name | |
581 | will be in the string table. */ | |
582 | abort (); | |
583 | } | |
584 | ||
585 | if (isym.n_sclass == C_STAT | |
586 | && isym.n_type == T_NULL | |
587 | && isym.n_numaux == 1 | |
588 | && isym._n._n_n._n_zeroes != 0) | |
589 | { | |
590 | char buf[SYMNMLEN + 1]; | |
591 | ||
592 | memcpy (buf, isym._n._n_name, SYMNMLEN); | |
593 | buf[SYMNMLEN] = '\0'; | |
594 | ||
595 | if (strcmp (name, buf) == 0) | |
596 | { | |
597 | union internal_auxent aux; | |
598 | ||
599 | /* This is the section symbol. */ | |
600 | ||
601 | bfd_coff_swap_aux_in (abfd, (PTR) (esym + SYMESZ), | |
602 | isym.n_type, isym.n_sclass, | |
603 | 0, isym.n_numaux, (PTR) &aux); | |
604 | ||
605 | switch (aux.x_scn.x_comdat) | |
606 | { | |
607 | case IMAGE_COMDAT_SELECT_NODUPLICATES: | |
608 | sec_flags |= SEC_LINK_DUPLICATES_ONE_ONLY; | |
609 | break; | |
610 | ||
611 | default: | |
612 | case IMAGE_COMDAT_SELECT_ANY: | |
613 | sec_flags |= SEC_LINK_DUPLICATES_DISCARD; | |
614 | break; | |
615 | ||
616 | case IMAGE_COMDAT_SELECT_SAME_SIZE: | |
617 | sec_flags |= SEC_LINK_DUPLICATES_SAME_SIZE; | |
618 | break; | |
619 | ||
620 | case IMAGE_COMDAT_SELECT_EXACT_MATCH: | |
621 | sec_flags |= SEC_LINK_DUPLICATES_SAME_CONTENTS; | |
622 | break; | |
623 | ||
624 | case IMAGE_COMDAT_SELECT_ASSOCIATIVE: | |
625 | /* FIXME: This is not currently implemented. */ | |
626 | sec_flags |= SEC_LINK_DUPLICATES_DISCARD; | |
627 | break; | |
628 | } | |
629 | ||
630 | break; | |
631 | } | |
632 | } | |
633 | ||
634 | esym += (isym.n_numaux + 1) * SYMESZ; | |
635 | } | |
636 | } | |
637 | } | |
638 | #endif | |
639 | ||
9783e04a | 640 | return (sec_flags); |
41f50af0 | 641 | } |
0f268757 | 642 | |
f135c692 | 643 | #define get_index(symbol) ((symbol)->udata.i) |
0f268757 | 644 | |
07de8e96 KR |
645 | /* |
646 | INTERNAL_DEFINITION | |
647 | bfd_coff_backend_data | |
648 | ||
649 | CODE_FRAGMENT | |
650 | ||
c188b0be | 651 | Special entry points for gdb to swap in coff symbol table parts: |
9783e04a | 652 | .typedef struct |
60ac749c | 653 | .{ |
07de8e96 | 654 | . void (*_bfd_coff_swap_aux_in) PARAMS (( |
330595d0 | 655 | . bfd *abfd, |
07de8e96 KR |
656 | . PTR ext, |
657 | . int type, | |
330595d0 ILT |
658 | . int class, |
659 | . int indaux, | |
660 | . int numaux, | |
07de8e96 KR |
661 | . PTR in)); |
662 | . | |
663 | . void (*_bfd_coff_swap_sym_in) PARAMS (( | |
664 | . bfd *abfd , | |
665 | . PTR ext, | |
666 | . PTR in)); | |
667 | . | |
668 | . void (*_bfd_coff_swap_lineno_in) PARAMS (( | |
669 | . bfd *abfd, | |
670 | . PTR ext, | |
671 | . PTR in)); | |
672 | . | |
673 | ||
c188b0be | 674 | Special entry points for gas to swap out coff parts: |
07de8e96 KR |
675 | |
676 | . unsigned int (*_bfd_coff_swap_aux_out) PARAMS (( | |
677 | . bfd *abfd, | |
678 | . PTR in, | |
679 | . int type, | |
680 | . int class, | |
330595d0 ILT |
681 | . int indaux, |
682 | . int numaux, | |
07de8e96 KR |
683 | . PTR ext)); |
684 | . | |
685 | . unsigned int (*_bfd_coff_swap_sym_out) PARAMS (( | |
686 | . bfd *abfd, | |
687 | . PTR in, | |
688 | . PTR ext)); | |
689 | . | |
690 | . unsigned int (*_bfd_coff_swap_lineno_out) PARAMS (( | |
691 | . bfd *abfd, | |
692 | . PTR in, | |
693 | . PTR ext)); | |
694 | . | |
695 | . unsigned int (*_bfd_coff_swap_reloc_out) PARAMS (( | |
696 | . bfd *abfd, | |
697 | . PTR src, | |
698 | . PTR dst)); | |
699 | . | |
700 | . unsigned int (*_bfd_coff_swap_filehdr_out) PARAMS (( | |
701 | . bfd *abfd, | |
702 | . PTR in, | |
703 | . PTR out)); | |
704 | . | |
705 | . unsigned int (*_bfd_coff_swap_aouthdr_out) PARAMS (( | |
706 | . bfd *abfd, | |
707 | . PTR in, | |
708 | . PTR out)); | |
709 | . | |
710 | . unsigned int (*_bfd_coff_swap_scnhdr_out) PARAMS (( | |
711 | . bfd *abfd, | |
712 | . PTR in, | |
713 | . PTR out)); | |
714 | . | |
075caafd ILT |
715 | |
716 | Special entry points for generic COFF routines to call target | |
c188b0be | 717 | dependent COFF routines: |
075caafd ILT |
718 | |
719 | . unsigned int _bfd_filhsz; | |
720 | . unsigned int _bfd_aoutsz; | |
721 | . unsigned int _bfd_scnhsz; | |
722 | . unsigned int _bfd_symesz; | |
723 | . unsigned int _bfd_auxesz; | |
69645d10 | 724 | . unsigned int _bfd_relsz; |
075caafd ILT |
725 | . unsigned int _bfd_linesz; |
726 | . boolean _bfd_coff_long_filenames; | |
727 | . void (*_bfd_coff_swap_filehdr_in) PARAMS (( | |
728 | . bfd *abfd, | |
729 | . PTR ext, | |
730 | . PTR in)); | |
731 | . void (*_bfd_coff_swap_aouthdr_in) PARAMS (( | |
732 | . bfd *abfd, | |
733 | . PTR ext, | |
734 | . PTR in)); | |
735 | . void (*_bfd_coff_swap_scnhdr_in) PARAMS (( | |
736 | . bfd *abfd, | |
737 | . PTR ext, | |
738 | . PTR in)); | |
69645d10 ILT |
739 | . void (*_bfd_coff_swap_reloc_in) PARAMS (( |
740 | . bfd *abfd, | |
741 | . PTR ext, | |
742 | . PTR in)); | |
075caafd ILT |
743 | . boolean (*_bfd_coff_bad_format_hook) PARAMS (( |
744 | . bfd *abfd, | |
745 | . PTR internal_filehdr)); | |
746 | . boolean (*_bfd_coff_set_arch_mach_hook) PARAMS (( | |
747 | . bfd *abfd, | |
748 | . PTR internal_filehdr)); | |
749 | . PTR (*_bfd_coff_mkobject_hook) PARAMS (( | |
750 | . bfd *abfd, | |
27f524a3 ILT |
751 | . PTR internal_filehdr, |
752 | . PTR internal_aouthdr)); | |
075caafd ILT |
753 | . flagword (*_bfd_styp_to_sec_flags_hook) PARAMS (( |
754 | . bfd *abfd, | |
e8fbe6d9 ILT |
755 | . PTR internal_scnhdr, |
756 | . const char *name)); | |
075caafd ILT |
757 | . void (*_bfd_set_alignment_hook) PARAMS (( |
758 | . bfd *abfd, | |
759 | . asection *sec, | |
760 | . PTR internal_scnhdr)); | |
761 | . boolean (*_bfd_coff_slurp_symbol_table) PARAMS (( | |
762 | . bfd *abfd)); | |
763 | . boolean (*_bfd_coff_symname_in_debug) PARAMS (( | |
764 | . bfd *abfd, | |
765 | . struct internal_syment *sym)); | |
c80cc833 ILT |
766 | . boolean (*_bfd_coff_pointerize_aux_hook) PARAMS (( |
767 | . bfd *abfd, | |
768 | . combined_entry_type *table_base, | |
769 | . combined_entry_type *symbol, | |
770 | . unsigned int indaux, | |
771 | . combined_entry_type *aux)); | |
0fc9ada9 ILT |
772 | . boolean (*_bfd_coff_print_aux) PARAMS (( |
773 | . bfd *abfd, | |
774 | . FILE *file, | |
775 | . combined_entry_type *table_base, | |
776 | . combined_entry_type *symbol, | |
777 | . combined_entry_type *aux, | |
778 | . unsigned int indaux)); | |
075caafd ILT |
779 | . void (*_bfd_coff_reloc16_extra_cases) PARAMS (( |
780 | . bfd *abfd, | |
330595d0 ILT |
781 | . struct bfd_link_info *link_info, |
782 | . struct bfd_link_order *link_order, | |
075caafd ILT |
783 | . arelent *reloc, |
784 | . bfd_byte *data, | |
785 | . unsigned int *src_ptr, | |
786 | . unsigned int *dst_ptr)); | |
fbb61b50 | 787 | . int (*_bfd_coff_reloc16_estimate) PARAMS (( |
09a28207 | 788 | . bfd *abfd, |
fbb61b50 | 789 | . asection *input_section, |
fbb61b50 | 790 | . arelent *r, |
330595d0 ILT |
791 | . unsigned int shrink, |
792 | . struct bfd_link_info *link_info)); | |
69645d10 ILT |
793 | . boolean (*_bfd_coff_sym_is_global) PARAMS (( |
794 | . bfd *abfd, | |
795 | . struct internal_syment *)); | |
796 | . void (*_bfd_coff_compute_section_file_positions) PARAMS (( | |
797 | . bfd *abfd)); | |
a208a70f ILT |
798 | . boolean (*_bfd_coff_start_final_link) PARAMS (( |
799 | . bfd *output_bfd, | |
800 | . struct bfd_link_info *info)); | |
69645d10 ILT |
801 | . boolean (*_bfd_coff_relocate_section) PARAMS (( |
802 | . bfd *output_bfd, | |
803 | . struct bfd_link_info *info, | |
804 | . bfd *input_bfd, | |
805 | . asection *input_section, | |
806 | . bfd_byte *contents, | |
807 | . struct internal_reloc *relocs, | |
808 | . struct internal_syment *syms, | |
809 | . asection **sections)); | |
f135c692 ILT |
810 | . reloc_howto_type *(*_bfd_coff_rtype_to_howto) PARAMS (( |
811 | . bfd *abfd, | |
812 | . asection *sec, | |
813 | . struct internal_reloc *rel, | |
814 | . struct coff_link_hash_entry *h, | |
815 | . struct internal_syment *sym, | |
816 | . bfd_vma *addendp)); | |
817 | . boolean (*_bfd_coff_adjust_symndx) PARAMS (( | |
818 | . bfd *obfd, | |
819 | . struct bfd_link_info *info, | |
820 | . bfd *ibfd, | |
821 | . asection *sec, | |
822 | . struct internal_reloc *reloc, | |
823 | . boolean *adjustedp)); | |
d19df9b5 ILT |
824 | . boolean (*_bfd_coff_link_add_one_symbol) PARAMS (( |
825 | . struct bfd_link_info *info, | |
826 | . bfd *abfd, | |
827 | . const char *name, | |
828 | . flagword flags, | |
829 | . asection *section, | |
830 | . bfd_vma value, | |
831 | . const char *string, | |
832 | . boolean copy, | |
833 | . boolean collect, | |
834 | . struct bfd_link_hash_entry **hashp)); | |
fbb61b50 | 835 | . |
07de8e96 KR |
836 | .} bfd_coff_backend_data; |
837 | . | |
07de8e96 KR |
838 | .#define coff_backend_info(abfd) ((bfd_coff_backend_data *) (abfd)->xvec->backend_data) |
839 | . | |
330595d0 ILT |
840 | .#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \ |
841 | . ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i)) | |
07de8e96 KR |
842 | . |
843 | .#define bfd_coff_swap_sym_in(a,e,i) \ | |
844 | . ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i)) | |
845 | . | |
846 | .#define bfd_coff_swap_lineno_in(a,e,i) \ | |
847 | . ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i)) | |
848 | . | |
849 | .#define bfd_coff_swap_reloc_out(abfd, i, o) \ | |
850 | . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o)) | |
851 | . | |
852 | .#define bfd_coff_swap_lineno_out(abfd, i, o) \ | |
853 | . ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o)) | |
854 | . | |
330595d0 ILT |
855 | .#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \ |
856 | . ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o)) | |
07de8e96 KR |
857 | . |
858 | .#define bfd_coff_swap_sym_out(abfd, i,o) \ | |
859 | . ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o)) | |
860 | . | |
861 | .#define bfd_coff_swap_scnhdr_out(abfd, i,o) \ | |
862 | . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o)) | |
863 | . | |
864 | .#define bfd_coff_swap_filehdr_out(abfd, i,o) \ | |
865 | . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o)) | |
866 | . | |
867 | .#define bfd_coff_swap_aouthdr_out(abfd, i,o) \ | |
868 | . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o)) | |
869 | . | |
075caafd ILT |
870 | .#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz) |
871 | .#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz) | |
872 | .#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz) | |
873 | .#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz) | |
874 | .#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz) | |
69645d10 | 875 | .#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz) |
075caafd ILT |
876 | .#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz) |
877 | .#define bfd_coff_long_filenames(abfd) (coff_backend_info (abfd)->_bfd_coff_long_filenames) | |
878 | .#define bfd_coff_swap_filehdr_in(abfd, i,o) \ | |
879 | . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o)) | |
880 | . | |
881 | .#define bfd_coff_swap_aouthdr_in(abfd, i,o) \ | |
882 | . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o)) | |
883 | . | |
884 | .#define bfd_coff_swap_scnhdr_in(abfd, i,o) \ | |
885 | . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o)) | |
886 | . | |
69645d10 ILT |
887 | .#define bfd_coff_swap_reloc_in(abfd, i, o) \ |
888 | . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o)) | |
889 | . | |
075caafd ILT |
890 | .#define bfd_coff_bad_format_hook(abfd, filehdr) \ |
891 | . ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr)) | |
892 | . | |
893 | .#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\ | |
894 | . ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr)) | |
27f524a3 ILT |
895 | .#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\ |
896 | . ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook) (abfd, filehdr, aouthdr)) | |
075caafd | 897 | . |
e8fbe6d9 ILT |
898 | .#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name)\ |
899 | . ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook) (abfd, scnhdr, name)) | |
075caafd | 900 | . |
075caafd ILT |
901 | .#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\ |
902 | . ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr)) | |
903 | . | |
904 | .#define bfd_coff_slurp_symbol_table(abfd)\ | |
905 | . ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd)) | |
906 | . | |
907 | .#define bfd_coff_symname_in_debug(abfd, sym)\ | |
908 | . ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym)) | |
909 | . | |
0fc9ada9 ILT |
910 | .#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\ |
911 | . ((coff_backend_info (abfd)->_bfd_coff_print_aux)\ | |
912 | . (abfd, file, base, symbol, aux, indaux)) | |
913 | . | |
330595d0 | 914 | .#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)\ |
075caafd | 915 | . ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\ |
330595d0 | 916 | . (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)) |
fbb61b50 | 917 | . |
09a28207 | 918 | .#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\ |
fbb61b50 | 919 | . ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\ |
09a28207 | 920 | . (abfd, section, reloc, shrink, link_info)) |
9783e04a | 921 | . |
69645d10 ILT |
922 | .#define bfd_coff_sym_is_global(abfd, sym)\ |
923 | . ((coff_backend_info (abfd)->_bfd_coff_sym_is_global)\ | |
924 | . (abfd, sym)) | |
925 | . | |
926 | .#define bfd_coff_compute_section_file_positions(abfd)\ | |
927 | . ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\ | |
928 | . (abfd)) | |
929 | . | |
a208a70f ILT |
930 | .#define bfd_coff_start_final_link(obfd, info)\ |
931 | . ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\ | |
932 | . (obfd, info)) | |
69645d10 ILT |
933 | .#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\ |
934 | . ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\ | |
935 | . (obfd, info, ibfd, o, con, rel, isyms, secs)) | |
f135c692 ILT |
936 | .#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\ |
937 | . ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\ | |
938 | . (abfd, sec, rel, h, sym, addendp)) | |
939 | .#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\ | |
940 | . ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\ | |
941 | . (obfd, info, ibfd, sec, rel, adjustedp)) | |
cbe75cb6 | 942 | .#define bfd_coff_link_add_one_symbol(info,abfd,name,flags,section,value,string,cp,coll,hashp)\ |
d19df9b5 ILT |
943 | . ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\ |
944 | . (info, abfd, name, flags, section, value, string, cp, coll, hashp)) | |
69645d10 | 945 | . |
07de8e96 | 946 | */ |
0f268757 | 947 | |
075caafd | 948 | /* See whether the magic number matches. */ |
7a8b18b6 | 949 | |
075caafd | 950 | static boolean |
57a1867e DM |
951 | coff_bad_format_hook (abfd, filehdr) |
952 | bfd * abfd; | |
953 | PTR filehdr; | |
0f268757 | 954 | { |
075caafd | 955 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; |
0f268757 | 956 | |
075caafd ILT |
957 | if (BADMAG (*internal_f)) |
958 | return false; | |
0f268757 | 959 | |
075caafd ILT |
960 | /* if the optional header is NULL or not the correct size then |
961 | quit; the only difference I can see between m88k dgux headers (MC88DMAGIC) | |
962 | and Intel 960 readwrite headers (I960WRMAGIC) is that the | |
963 | optional header is of a different size. | |
cbdc7909 | 964 | |
075caafd ILT |
965 | But the mips keeps extra stuff in it's opthdr, so dont check |
966 | when doing that | |
967 | */ | |
0f268757 | 968 | |
075caafd ILT |
969 | #if defined(M88) || defined(I960) |
970 | if (internal_f->f_opthdr != 0 && AOUTSZ != internal_f->f_opthdr) | |
971 | return false; | |
0f268757 | 972 | #endif |
0f268757 | 973 | |
075caafd | 974 | return true; |
0f268757 SC |
975 | } |
976 | ||
0f268757 SC |
977 | /* |
978 | initialize a section structure with information peculiar to this | |
979 | particular implementation of coff | |
980 | */ | |
981 | ||
075caafd | 982 | static boolean |
57a1867e DM |
983 | coff_new_section_hook (abfd, section) |
984 | bfd * abfd; | |
985 | asection * section; | |
0f268757 | 986 | { |
f135c692 ILT |
987 | section->alignment_power = COFF_DEFAULT_SECTION_ALIGNMENT_POWER; |
988 | ||
5f710a3a ILT |
989 | #ifdef RS6000COFF_C |
990 | if (xcoff_data (abfd)->text_align_power != 0 | |
991 | && strcmp (bfd_get_section_name (abfd, section), ".text") == 0) | |
992 | section->alignment_power = xcoff_data (abfd)->text_align_power; | |
993 | if (xcoff_data (abfd)->data_align_power != 0 | |
994 | && strcmp (bfd_get_section_name (abfd, section), ".data") == 0) | |
995 | section->alignment_power = xcoff_data (abfd)->data_align_power; | |
996 | #endif | |
997 | ||
8070f29d KR |
998 | /* Allocate aux records for section symbols, to store size and |
999 | related info. | |
1000 | ||
1d8eda7a DE |
1001 | @@ The 10 is a guess at a plausible maximum number of aux entries |
1002 | (but shouldn't be a constant). */ | |
8070f29d KR |
1003 | coffsymbol (section->symbol)->native = |
1004 | (combined_entry_type *) bfd_zalloc (abfd, | |
1005 | sizeof (combined_entry_type) * 10); | |
c16313f0 | 1006 | |
f135c692 ILT |
1007 | /* The .stab section must be aligned to 2**2 at most, because |
1008 | otherwise there may be gaps in the section which gdb will not | |
1009 | know how to interpret. Examining the section name is a hack, but | |
850985ee ILT |
1010 | that is also how gdb locates the section. |
1011 | We need to handle the .ctors and .dtors sections similarly, to | |
1012 | avoid introducing null words in the tables. */ | |
f135c692 | 1013 | if (COFF_DEFAULT_SECTION_ALIGNMENT_POWER > 2 |
850985ee ILT |
1014 | && (strncmp (section->name, ".stab", 5) == 0 |
1015 | || strcmp (section->name, ".ctors") == 0 | |
1016 | || strcmp (section->name, ".dtors") == 0)) | |
f135c692 | 1017 | section->alignment_power = 2; |
c16313f0 | 1018 | |
4a3d3b42 ILT |
1019 | /* Similarly, the .stabstr section must be aligned to 2**0 at most. */ |
1020 | if (COFF_DEFAULT_SECTION_ALIGNMENT_POWER > 0 | |
1021 | && strncmp (section->name, ".stabstr", 8) == 0) | |
1022 | section->alignment_power = 0; | |
1023 | ||
0f268757 SC |
1024 | return true; |
1025 | } | |
1026 | ||
0f268757 | 1027 | #ifdef I960 |
e98e6ec1 | 1028 | |
075caafd ILT |
1029 | /* Set the alignment of a BFD section. */ |
1030 | ||
1031 | static void | |
57a1867e DM |
1032 | coff_set_alignment_hook (abfd, section, scnhdr) |
1033 | bfd * abfd; | |
1034 | asection * section; | |
1035 | PTR scnhdr; | |
e98e6ec1 | 1036 | { |
075caafd ILT |
1037 | struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr; |
1038 | unsigned int i; | |
1039 | ||
1040 | for (i = 0; i < 32; i++) | |
1041 | if ((1 << i) >= hdr->s_align) | |
1042 | break; | |
1043 | section->alignment_power = i; | |
e98e6ec1 SC |
1044 | } |
1045 | ||
c769947b SS |
1046 | #else /* ! I960 */ |
1047 | #ifdef COFF_WITH_PE | |
d6f41a7d KK |
1048 | |
1049 | /* a couple of macros to help setting the alignment power field */ | |
1050 | #define ALIGN_SET(field,x,y) \ | |
1051 | if (((field) & IMAGE_SCN_ALIGN_64BYTES) == x )\ | |
1052 | {\ | |
1053 | section->alignment_power = y;\ | |
1054 | } | |
1055 | ||
1056 | #define ELIFALIGN_SET(field,x,y) \ | |
1057 | else if (( (field) & IMAGE_SCN_ALIGN_64BYTES) == x ) \ | |
1058 | {\ | |
1059 | section->alignment_power = y;\ | |
1060 | } | |
1061 | ||
1062 | static void | |
1063 | coff_set_alignment_hook (abfd, section, scnhdr) | |
1064 | bfd * abfd; | |
1065 | asection * section; | |
1066 | PTR scnhdr; | |
1067 | { | |
1068 | struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr; | |
1069 | ||
1070 | ALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_64BYTES, 6) | |
1071 | ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_32BYTES, 5) | |
1072 | ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_16BYTES, 4) | |
1073 | ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_8BYTES, 3) | |
1074 | ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_4BYTES, 2) | |
1075 | ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_2BYTES, 1) | |
1076 | ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_1BYTES, 0) | |
59066248 KK |
1077 | |
1078 | #ifdef POWERPC_LE_PE | |
1079 | if (strcmp (section->name, ".idata$2") == 0) | |
1080 | { | |
59066248 KK |
1081 | section->alignment_power = 0; |
1082 | } | |
1083 | else if (strcmp (section->name, ".idata$3") == 0) | |
1084 | { | |
59066248 KK |
1085 | section->alignment_power = 0; |
1086 | } | |
1087 | else if (strcmp (section->name, ".idata$4") == 0) | |
1088 | { | |
59066248 KK |
1089 | section->alignment_power = 2; |
1090 | } | |
1091 | else if (strcmp (section->name, ".idata$5") == 0) | |
1092 | { | |
59066248 KK |
1093 | section->alignment_power = 2; |
1094 | } | |
1095 | else if (strcmp (section->name, ".idata$6") == 0) | |
1096 | { | |
59066248 KK |
1097 | section->alignment_power = 1; |
1098 | } | |
caa740be KK |
1099 | else if (strcmp (section->name, ".reloc") == 0) |
1100 | { | |
1101 | section->alignment_power = 1; | |
1102 | } | |
e7894f6b KK |
1103 | else if (strncmp (section->name, ".stab", 5) == 0) |
1104 | { | |
1105 | section->alignment_power = 2; | |
1106 | } | |
59066248 | 1107 | #endif |
d6f41a7d KK |
1108 | } |
1109 | #undef ALIGN_SET | |
1110 | #undef ELIFALIGN_SET | |
1111 | ||
c769947b SS |
1112 | #else /* ! COFF_WITH_PE */ |
1113 | #ifdef RS6000COFF_C | |
1114 | ||
1115 | /* We grossly abuse this function to handle XCOFF overflow headers. | |
1116 | When we see one, we correct the reloc and line number counts in the | |
1117 | real header, and remove the section we just created. */ | |
1118 | ||
1119 | static void | |
1120 | coff_set_alignment_hook (abfd, section, scnhdr) | |
1121 | bfd *abfd; | |
1122 | asection *section; | |
1123 | PTR scnhdr; | |
1124 | { | |
1125 | struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr; | |
1126 | asection *real_sec; | |
1127 | asection **ps; | |
1128 | ||
1129 | if ((hdr->s_flags & STYP_OVRFLO) == 0) | |
1130 | return; | |
1131 | ||
1132 | real_sec = coff_section_from_bfd_index (abfd, hdr->s_nreloc); | |
1133 | if (real_sec == NULL) | |
1134 | return; | |
1135 | ||
1136 | real_sec->reloc_count = hdr->s_paddr; | |
1137 | real_sec->lineno_count = hdr->s_vaddr; | |
1138 | ||
1139 | for (ps = &abfd->sections; *ps != NULL; ps = &(*ps)->next) | |
1140 | { | |
1141 | if (*ps == section) | |
1142 | { | |
1143 | *ps = (*ps)->next; | |
1144 | --abfd->section_count; | |
1145 | break; | |
1146 | } | |
1147 | } | |
1148 | } | |
1149 | ||
1150 | #else /* ! RS6000COFF_C */ | |
0f268757 | 1151 | |
075caafd ILT |
1152 | #define coff_set_alignment_hook \ |
1153 | ((void (*) PARAMS ((bfd *, asection *, PTR))) bfd_void) | |
41f50af0 | 1154 | |
c769947b SS |
1155 | #endif /* ! RS6000COFF_C */ |
1156 | #endif /* ! COFF_WITH_PE */ | |
075caafd | 1157 | #endif /* ! I960 */ |
0f268757 | 1158 | |
beee31b1 | 1159 | #ifndef coff_mkobject |
9783e04a | 1160 | static boolean |
57a1867e DM |
1161 | coff_mkobject (abfd) |
1162 | bfd * abfd; | |
0f268757 | 1163 | { |
075caafd ILT |
1164 | coff_data_type *coff; |
1165 | ||
9783e04a DM |
1166 | abfd->tdata.coff_obj_data = (struct coff_tdata *) bfd_zalloc (abfd, sizeof (coff_data_type)); |
1167 | if (abfd->tdata.coff_obj_data == 0) | |
a9713b91 | 1168 | return false; |
075caafd ILT |
1169 | coff = coff_data (abfd); |
1170 | coff->symbols = (coff_symbol_type *) NULL; | |
1171 | coff->conversion_table = (unsigned int *) NULL; | |
1172 | coff->raw_syments = (struct coff_ptr_struct *) NULL; | |
075caafd | 1173 | coff->relocbase = 0; |
d6f41a7d KK |
1174 | coff->local_toc_sym_map = 0; |
1175 | ||
6590a8c9 | 1176 | /* make_abs_section(abfd);*/ |
89665c85 | 1177 | |
0f268757 SC |
1178 | return true; |
1179 | } | |
beee31b1 | 1180 | #endif |
0f268757 | 1181 | |
075caafd | 1182 | /* Create the COFF backend specific information. */ |
beee31b1 | 1183 | #ifndef coff_mkobject_hook |
9783e04a | 1184 | static PTR |
57a1867e DM |
1185 | coff_mkobject_hook (abfd, filehdr, aouthdr) |
1186 | bfd * abfd; | |
1187 | PTR filehdr; | |
1188 | PTR aouthdr; | |
0f268757 | 1189 | { |
075caafd | 1190 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; |
0f268757 | 1191 | coff_data_type *coff; |
cbdc7909 | 1192 | |
075caafd ILT |
1193 | if (coff_mkobject (abfd) == false) |
1194 | return NULL; | |
e98e6ec1 | 1195 | |
075caafd | 1196 | coff = coff_data (abfd); |
cbdc7909 | 1197 | |
075caafd | 1198 | coff->sym_filepos = internal_f->f_symptr; |
cbdc7909 | 1199 | |
075caafd ILT |
1200 | /* These members communicate important constants about the symbol |
1201 | table to GDB's symbol-reading code. These `constants' | |
1202 | unfortunately vary among coff implementations... */ | |
1203 | coff->local_n_btmask = N_BTMASK; | |
1204 | coff->local_n_btshft = N_BTSHFT; | |
9783e04a | 1205 | coff->local_n_tmask = N_TMASK; |
075caafd | 1206 | coff->local_n_tshift = N_TSHIFT; |
9783e04a DM |
1207 | coff->local_symesz = SYMESZ; |
1208 | coff->local_auxesz = AUXESZ; | |
1209 | coff->local_linesz = LINESZ; | |
cbdc7909 | 1210 | |
69645d10 ILT |
1211 | obj_raw_syment_count (abfd) = |
1212 | obj_conv_table_size (abfd) = | |
1213 | internal_f->f_nsyms; | |
1214 | ||
5f710a3a ILT |
1215 | #ifdef RS6000COFF_C |
1216 | if ((internal_f->f_flags & F_SHROBJ) != 0) | |
1217 | abfd->flags |= DYNAMIC; | |
1218 | if (aouthdr != NULL && internal_f->f_opthdr >= AOUTSZ) | |
1219 | { | |
1220 | struct internal_aouthdr *internal_a = | |
1221 | (struct internal_aouthdr *) aouthdr; | |
1222 | struct xcoff_tdata *xcoff; | |
1223 | ||
1224 | xcoff = xcoff_data (abfd); | |
867d923d | 1225 | xcoff->full_aouthdr = true; |
5f710a3a | 1226 | xcoff->toc = internal_a->o_toc; |
d19df9b5 ILT |
1227 | xcoff->sntoc = internal_a->o_sntoc; |
1228 | xcoff->snentry = internal_a->o_snentry; | |
5f710a3a ILT |
1229 | xcoff->text_align_power = internal_a->o_algntext; |
1230 | xcoff->data_align_power = internal_a->o_algndata; | |
1231 | xcoff->modtype = internal_a->o_modtype; | |
dd984644 | 1232 | xcoff->cputype = internal_a->o_cputype; |
5f710a3a ILT |
1233 | xcoff->maxdata = internal_a->o_maxdata; |
1234 | xcoff->maxstack = internal_a->o_maxstack; | |
1235 | } | |
1236 | #endif | |
1237 | ||
075caafd ILT |
1238 | return (PTR) coff; |
1239 | } | |
beee31b1 | 1240 | #endif |
cbdc7909 | 1241 | |
075caafd ILT |
1242 | /* Determine the machine architecture and type. FIXME: This is target |
1243 | dependent because the magic numbers are defined in the target | |
1244 | dependent header files. But there is no particular need for this. | |
1245 | If the magic numbers were moved to a separate file, this function | |
1246 | would be target independent and would also be much more successful | |
1247 | at linking together COFF files for different architectures. */ | |
cbdc7909 | 1248 | |
075caafd | 1249 | static boolean |
9783e04a | 1250 | coff_set_arch_mach_hook (abfd, filehdr) |
4d09e8ac JK |
1251 | bfd *abfd; |
1252 | PTR filehdr; | |
075caafd ILT |
1253 | { |
1254 | long machine; | |
1255 | enum bfd_architecture arch; | |
1256 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
e98e6ec1 | 1257 | |
075caafd | 1258 | machine = 0; |
9783e04a DM |
1259 | switch (internal_f->f_magic) |
1260 | { | |
80b2dd82 KK |
1261 | #ifdef PPCMAGIC |
1262 | case PPCMAGIC: | |
1263 | arch = bfd_arch_powerpc; | |
1264 | machine = 0; /* what does this mean? (krk) */ | |
1265 | break; | |
1266 | #endif | |
20fdc627 | 1267 | #ifdef I386MAGIC |
9783e04a DM |
1268 | case I386MAGIC: |
1269 | case I386PTXMAGIC: | |
1270 | case I386AIXMAGIC: /* Danbury PS/2 AIX C Compiler */ | |
1271 | case LYNXCOFFMAGIC: /* shadows the m68k Lynx number below, sigh */ | |
1272 | arch = bfd_arch_i386; | |
1273 | machine = 0; | |
1274 | break; | |
20fdc627 | 1275 | #endif |
cbdc7909 | 1276 | #ifdef A29K_MAGIC_BIG |
9783e04a DM |
1277 | case A29K_MAGIC_BIG: |
1278 | case A29K_MAGIC_LITTLE: | |
1279 | arch = bfd_arch_a29k; | |
1280 | machine = 0; | |
1281 | break; | |
41f50af0 | 1282 | #endif |
89665c85 SC |
1283 | #ifdef ARMMAGIC |
1284 | case ARMMAGIC: | |
1285 | arch = bfd_arch_arm; | |
1286 | machine =0; | |
1287 | break; | |
1288 | #endif | |
0f268757 | 1289 | #ifdef MC68MAGIC |
9783e04a DM |
1290 | case MC68MAGIC: |
1291 | case M68MAGIC: | |
97eb2f0c | 1292 | #ifdef MC68KBCSMAGIC |
9783e04a | 1293 | case MC68KBCSMAGIC: |
97eb2f0c KR |
1294 | #endif |
1295 | #ifdef APOLLOM68KMAGIC | |
9783e04a | 1296 | case APOLLOM68KMAGIC: |
c188b0be DM |
1297 | #endif |
1298 | #ifdef LYNXCOFFMAGIC | |
9783e04a | 1299 | case LYNXCOFFMAGIC: |
97eb2f0c | 1300 | #endif |
9783e04a DM |
1301 | arch = bfd_arch_m68k; |
1302 | machine = 68020; | |
1303 | break; | |
0f268757 SC |
1304 | #endif |
1305 | #ifdef MC88MAGIC | |
9783e04a DM |
1306 | case MC88MAGIC: |
1307 | case MC88DMAGIC: | |
1308 | case MC88OMAGIC: | |
1309 | arch = bfd_arch_m88k; | |
1310 | machine = 88100; | |
1311 | break; | |
0f268757 | 1312 | #endif |
dc999ad9 | 1313 | #ifdef Z8KMAGIC |
9783e04a DM |
1314 | case Z8KMAGIC: |
1315 | arch = bfd_arch_z8k; | |
1316 | switch (internal_f->f_flags & F_MACHMASK) | |
1317 | { | |
1318 | case F_Z8001: | |
1319 | machine = bfd_mach_z8001; | |
1320 | break; | |
1321 | case F_Z8002: | |
1322 | machine = bfd_mach_z8002; | |
1323 | break; | |
1324 | default: | |
1325 | return false; | |
1326 | } | |
1327 | break; | |
dc999ad9 | 1328 | #endif |
cf587de8 ILT |
1329 | #ifdef I860 |
1330 | case I860MAGIC: | |
1331 | arch = bfd_arch_i860; | |
1332 | break; | |
1333 | #endif | |
0f268757 SC |
1334 | #ifdef I960 |
1335 | #ifdef I960ROMAGIC | |
9783e04a DM |
1336 | case I960ROMAGIC: |
1337 | case I960RWMAGIC: | |
1338 | arch = bfd_arch_i960; | |
1339 | switch (F_I960TYPE & internal_f->f_flags) | |
0f268757 SC |
1340 | { |
1341 | default: | |
1342 | case F_I960CORE: | |
0d740984 | 1343 | machine = bfd_mach_i960_core; |
0f268757 SC |
1344 | break; |
1345 | case F_I960KB: | |
0d740984 | 1346 | machine = bfd_mach_i960_kb_sb; |
0f268757 | 1347 | break; |
9783e04a | 1348 | case F_I960MC: |
0d740984 | 1349 | machine = bfd_mach_i960_mc; |
0f268757 SC |
1350 | break; |
1351 | case F_I960XA: | |
0d740984 | 1352 | machine = bfd_mach_i960_xa; |
0f268757 SC |
1353 | break; |
1354 | case F_I960CA: | |
0d740984 | 1355 | machine = bfd_mach_i960_ca; |
0f268757 SC |
1356 | break; |
1357 | case F_I960KA: | |
0d740984 | 1358 | machine = bfd_mach_i960_ka_sa; |
0f268757 | 1359 | break; |
57289b5c JL |
1360 | case F_I960JX: |
1361 | machine = bfd_mach_i960_jx; | |
b5b056fc | 1362 | break; |
cbe75cb6 ILT |
1363 | case F_I960HX: |
1364 | machine = bfd_mach_i960_hx; | |
1365 | break; | |
0f268757 | 1366 | } |
9783e04a | 1367 | break; |
0f268757 SC |
1368 | #endif |
1369 | #endif | |
cbdc7909 | 1370 | |
dd984644 | 1371 | #ifdef RS6000COFF_C |
9783e04a DM |
1372 | case U802ROMAGIC: |
1373 | case U802WRMAGIC: | |
1374 | case U802TOCMAGIC: | |
dd984644 ILT |
1375 | { |
1376 | int cputype; | |
1377 | ||
1378 | if (xcoff_data (abfd)->cputype != -1) | |
1379 | cputype = xcoff_data (abfd)->cputype & 0xff; | |
1380 | else | |
1381 | { | |
1382 | /* We did not get a value from the a.out header. If the | |
1383 | file has not been stripped, we may be able to get the | |
1384 | architecture information from the first symbol, if it | |
1385 | is a .file symbol. */ | |
1386 | if (obj_raw_syment_count (abfd) == 0) | |
1387 | cputype = 0; | |
1388 | else | |
1389 | { | |
1390 | bfd_byte buf[SYMESZ]; | |
1391 | struct internal_syment sym; | |
1392 | ||
1393 | if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0 | |
1394 | || bfd_read (buf, 1, SYMESZ, abfd) != SYMESZ) | |
1395 | return false; | |
1396 | coff_swap_sym_in (abfd, (PTR) buf, (PTR) &sym); | |
1397 | if (sym.n_sclass == C_FILE) | |
1398 | cputype = sym.n_type & 0xff; | |
1399 | else | |
1400 | cputype = 0; | |
1401 | } | |
1402 | } | |
1403 | ||
1404 | /* FIXME: We don't handle all cases here. */ | |
1405 | switch (cputype) | |
1406 | { | |
1407 | default: | |
1408 | case 0: | |
db344f82 | 1409 | #ifdef POWERMAC |
dd984644 ILT |
1410 | /* PowerPC Macs use the same magic numbers as RS/6000 |
1411 | (because that's how they were bootstrapped originally), | |
1412 | but they are always PowerPC architecture. */ | |
1413 | arch = bfd_arch_powerpc; | |
c769947b | 1414 | machine = 0; |
db344f82 | 1415 | #else |
dd984644 ILT |
1416 | arch = bfd_arch_rs6000; |
1417 | machine = 6000; | |
db344f82 | 1418 | #endif /* POWERMAC */ |
dd984644 ILT |
1419 | break; |
1420 | ||
1421 | case 1: | |
1422 | arch = bfd_arch_powerpc; | |
1423 | machine = 601; | |
1424 | break; | |
1425 | case 2: /* 64 bit PowerPC */ | |
1426 | arch = bfd_arch_powerpc; | |
1427 | machine = 620; | |
1428 | break; | |
1429 | case 3: | |
1430 | arch = bfd_arch_powerpc; | |
1431 | machine = 0; | |
1432 | break; | |
1433 | case 4: | |
1434 | arch = bfd_arch_rs6000; | |
1435 | machine = 6000; | |
1436 | break; | |
1437 | } | |
1438 | } | |
9783e04a | 1439 | break; |
cbdc7909 JG |
1440 | #endif |
1441 | ||
dc999ad9 | 1442 | #ifdef WE32KMAGIC |
9783e04a DM |
1443 | case WE32KMAGIC: |
1444 | arch = bfd_arch_we32k; | |
1445 | machine = 0; | |
1446 | break; | |
dc999ad9 ILT |
1447 | #endif |
1448 | ||
3b4f1a5d | 1449 | #ifdef H8300MAGIC |
9783e04a DM |
1450 | case H8300MAGIC: |
1451 | arch = bfd_arch_h8300; | |
1452 | machine = bfd_mach_h8300; | |
1453 | /* !! FIXME this probably isn't the right place for this */ | |
1454 | abfd->flags |= BFD_IS_RELAXABLE; | |
1455 | break; | |
4d09e8ac JK |
1456 | #endif |
1457 | ||
1458 | #ifdef H8300HMAGIC | |
9783e04a DM |
1459 | case H8300HMAGIC: |
1460 | arch = bfd_arch_h8300; | |
1461 | machine = bfd_mach_h8300h; | |
1462 | /* !! FIXME this probably isn't the right place for this */ | |
1463 | abfd->flags |= BFD_IS_RELAXABLE; | |
1464 | break; | |
142ce43e SC |
1465 | #endif |
1466 | ||
f135c692 ILT |
1467 | #ifdef SH_ARCH_MAGIC_BIG |
1468 | case SH_ARCH_MAGIC_BIG: | |
1469 | case SH_ARCH_MAGIC_LITTLE: | |
9783e04a DM |
1470 | arch = bfd_arch_sh; |
1471 | machine = 0; | |
1472 | break; | |
9faacb92 SC |
1473 | #endif |
1474 | ||
142ce43e | 1475 | #ifdef H8500MAGIC |
9783e04a DM |
1476 | case H8500MAGIC: |
1477 | arch = bfd_arch_h8500; | |
1478 | machine = 0; | |
1479 | break; | |
3b4f1a5d | 1480 | #endif |
cbdc7909 | 1481 | |
c188b0be | 1482 | #ifdef SPARCMAGIC |
9783e04a | 1483 | case SPARCMAGIC: |
c16313f0 ILT |
1484 | #ifdef LYNXCOFFMAGIC |
1485 | case LYNXCOFFMAGIC: | |
1486 | #endif | |
9783e04a DM |
1487 | arch = bfd_arch_sparc; |
1488 | machine = 0; | |
1489 | break; | |
c188b0be DM |
1490 | #endif |
1491 | ||
9783e04a DM |
1492 | default: /* Unreadable input file type */ |
1493 | arch = bfd_arch_obscure; | |
1494 | break; | |
1495 | } | |
cbdc7909 | 1496 | |
9783e04a | 1497 | bfd_default_set_arch_mach (abfd, arch, machine); |
075caafd ILT |
1498 | return true; |
1499 | } | |
cbdc7909 | 1500 | |
075caafd | 1501 | #ifdef SYMNAME_IN_DEBUG |
6f715d66 | 1502 | |
075caafd | 1503 | static boolean |
57a1867e DM |
1504 | symname_in_debug_hook (abfd, sym) |
1505 | bfd * abfd; | |
1506 | struct internal_syment *sym; | |
075caafd ILT |
1507 | { |
1508 | return SYMNAME_IN_DEBUG (sym) ? true : false; | |
1509 | } | |
6f715d66 | 1510 | |
075caafd | 1511 | #else |
cbdc7909 | 1512 | |
075caafd ILT |
1513 | #define symname_in_debug_hook \ |
1514 | (boolean (*) PARAMS ((bfd *, struct internal_syment *))) bfd_false | |
cbdc7909 | 1515 | |
075caafd | 1516 | #endif |
7a8b18b6 | 1517 | |
c80cc833 ILT |
1518 | #ifdef RS6000COFF_C |
1519 | ||
0fc9ada9 | 1520 | /* Handle the csect auxent of a C_EXT or C_HIDEXT symbol. */ |
c80cc833 ILT |
1521 | |
1522 | static boolean coff_pointerize_aux_hook | |
1523 | PARAMS ((bfd *, combined_entry_type *, combined_entry_type *, | |
1524 | unsigned int, combined_entry_type *)); | |
1525 | ||
1526 | /*ARGSUSED*/ | |
1527 | static boolean | |
1528 | coff_pointerize_aux_hook (abfd, table_base, symbol, indaux, aux) | |
1529 | bfd *abfd; | |
1530 | combined_entry_type *table_base; | |
1531 | combined_entry_type *symbol; | |
1532 | unsigned int indaux; | |
1533 | combined_entry_type *aux; | |
1534 | { | |
1535 | int class = symbol->u.syment.n_sclass; | |
1536 | ||
0fc9ada9 ILT |
1537 | if ((class == C_EXT || class == C_HIDEXT) |
1538 | && indaux + 1 == symbol->u.syment.n_numaux) | |
1539 | { | |
1540 | if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) == XTY_LD) | |
1541 | { | |
1542 | aux->u.auxent.x_csect.x_scnlen.p = | |
1543 | table_base + aux->u.auxent.x_csect.x_scnlen.l; | |
1544 | aux->fix_scnlen = 1; | |
1545 | } | |
1546 | ||
1547 | /* Return true to indicate that the caller should not do any | |
1548 | further work on this auxent. */ | |
1549 | return true; | |
1550 | } | |
1551 | ||
1552 | /* Return false to indicate that this auxent should be handled by | |
1553 | the caller. */ | |
1554 | return false; | |
c80cc833 ILT |
1555 | } |
1556 | ||
1557 | #else | |
1558 | #ifdef I960 | |
1559 | ||
1560 | /* We don't want to pointerize bal entries. */ | |
1561 | ||
1562 | static boolean coff_pointerize_aux_hook | |
1563 | PARAMS ((bfd *, combined_entry_type *, combined_entry_type *, | |
1564 | unsigned int, combined_entry_type *)); | |
1565 | ||
1566 | /*ARGSUSED*/ | |
1567 | static boolean | |
1568 | coff_pointerize_aux_hook (abfd, table_base, symbol, indaux, aux) | |
1569 | bfd *abfd; | |
1570 | combined_entry_type *table_base; | |
1571 | combined_entry_type *symbol; | |
1572 | unsigned int indaux; | |
1573 | combined_entry_type *aux; | |
1574 | { | |
1575 | /* Return true if we don't want to pointerize this aux entry, which | |
1576 | is the case for the lastfirst aux entry for a C_LEAFPROC symbol. */ | |
a418e05d ILT |
1577 | return (indaux == 1 |
1578 | && (symbol->u.syment.n_sclass == C_LEAFPROC | |
1579 | || symbol->u.syment.n_sclass == C_LEAFSTAT | |
1580 | || symbol->u.syment.n_sclass == C_LEAFEXT)); | |
c80cc833 ILT |
1581 | } |
1582 | ||
1583 | #else /* ! I960 */ | |
1584 | ||
1585 | #define coff_pointerize_aux_hook 0 | |
1586 | ||
1587 | #endif /* ! I960 */ | |
1588 | #endif /* ! RS6000COFF_C */ | |
1589 | ||
0fc9ada9 ILT |
1590 | /* Print an aux entry. This returns true if it has printed it. */ |
1591 | ||
1592 | static boolean coff_print_aux | |
1593 | PARAMS ((bfd *, FILE *, combined_entry_type *, combined_entry_type *, | |
1594 | combined_entry_type *, unsigned int)); | |
1595 | ||
1596 | static boolean | |
1597 | coff_print_aux (abfd, file, table_base, symbol, aux, indaux) | |
1598 | bfd *abfd; | |
1599 | FILE *file; | |
1600 | combined_entry_type *table_base; | |
1601 | combined_entry_type *symbol; | |
1602 | combined_entry_type *aux; | |
1603 | unsigned int indaux; | |
1604 | { | |
1605 | #ifdef RS6000COFF_C | |
1606 | if ((symbol->u.syment.n_sclass == C_EXT | |
1607 | || symbol->u.syment.n_sclass == C_HIDEXT) | |
1608 | && indaux + 1 == symbol->u.syment.n_numaux) | |
1609 | { | |
1610 | /* This is a csect entry. */ | |
1611 | fprintf (file, "AUX "); | |
1612 | if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) != XTY_LD) | |
1613 | { | |
1614 | BFD_ASSERT (! aux->fix_scnlen); | |
1615 | fprintf (file, "val %5ld", aux->u.auxent.x_csect.x_scnlen.l); | |
1616 | } | |
1617 | else | |
1618 | { | |
1619 | fprintf (file, "indx "); | |
1620 | if (! aux->fix_scnlen) | |
1621 | fprintf (file, "%4ld", aux->u.auxent.x_csect.x_scnlen.l); | |
1622 | else | |
1623 | fprintf (file, "%4ld", | |
1624 | (long) (aux->u.auxent.x_csect.x_scnlen.p - table_base)); | |
1625 | } | |
1626 | fprintf (file, | |
1627 | " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u", | |
1628 | aux->u.auxent.x_csect.x_parmhash, | |
1629 | (unsigned int) aux->u.auxent.x_csect.x_snhash, | |
1630 | SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp), | |
1631 | SMTYP_ALIGN (aux->u.auxent.x_csect.x_smtyp), | |
1632 | (unsigned int) aux->u.auxent.x_csect.x_smclas, | |
1633 | aux->u.auxent.x_csect.x_stab, | |
1634 | (unsigned int) aux->u.auxent.x_csect.x_snstab); | |
1635 | return true; | |
1636 | } | |
1637 | #endif | |
1638 | ||
1639 | /* Return false to indicate that no special action was taken. */ | |
1640 | return false; | |
1641 | } | |
1642 | ||
9fda1a39 SC |
1643 | /* |
1644 | SUBSUBSECTION | |
c188b0be | 1645 | Writing relocations |
9fda1a39 | 1646 | |
c188b0be DM |
1647 | To write relocations, the back end steps though the |
1648 | canonical relocation table and create an | |
9fda1a39 | 1649 | @code{internal_reloc}. The symbol index to use is removed from |
c188b0be | 1650 | the @code{offset} field in the symbol table supplied. The |
9fda1a39 | 1651 | address comes directly from the sum of the section base |
c188b0be | 1652 | address and the relocation offset; the type is dug directly |
9fda1a39 SC |
1653 | from the howto field. Then the @code{internal_reloc} is |
1654 | swapped into the shape of an @code{external_reloc} and written | |
9783e04a | 1655 | out to disk. |
9fda1a39 | 1656 | |
6f715d66 | 1657 | */ |
0f268757 | 1658 | |
d19df9b5 ILT |
1659 | #ifdef TARG_AUX |
1660 | ||
1661 | static int compare_arelent_ptr PARAMS ((const PTR, const PTR)); | |
1662 | ||
1663 | /* AUX's ld wants relocations to be sorted */ | |
1664 | static int | |
1665 | compare_arelent_ptr (x, y) | |
1666 | const PTR x; | |
1667 | const PTR y; | |
1668 | { | |
1669 | const arelent **a = (const arelent **) x; | |
1670 | const arelent **b = (const arelent **) y; | |
1671 | bfd_size_type aadr = (*a)->address; | |
1672 | bfd_size_type badr = (*b)->address; | |
1673 | ||
1674 | return (aadr < badr ? -1 : badr < aadr ? 1 : 0); | |
1675 | } | |
1676 | ||
1677 | #endif /* TARG_AUX */ | |
1678 | ||
791a3db4 | 1679 | static boolean |
89665c85 | 1680 | coff_write_relocs (abfd, first_undef) |
57a1867e | 1681 | bfd * abfd; |
89665c85 | 1682 | int first_undef; |
6f715d66 | 1683 | { |
9783e04a | 1684 | asection *s; |
d19df9b5 | 1685 | |
9783e04a DM |
1686 | for (s = abfd->sections; s != (asection *) NULL; s = s->next) |
1687 | { | |
1688 | unsigned int i; | |
1689 | struct external_reloc dst; | |
d19df9b5 ILT |
1690 | arelent **p; |
1691 | ||
1692 | #ifndef TARG_AUX | |
1693 | p = s->orelocation; | |
1694 | #else | |
1695 | /* sort relocations before we write them out */ | |
1696 | p = (arelent **) bfd_malloc (s->reloc_count * sizeof (arelent *)); | |
1697 | if (p == NULL && s->reloc_count > 0) | |
1698 | return false; | |
1699 | memcpy (p, s->orelocation, s->reloc_count * sizeof (arelent *)); | |
1700 | qsort (p, s->reloc_count, sizeof (arelent *), compare_arelent_ptr); | |
1701 | #endif | |
9783e04a | 1702 | |
791a3db4 ILT |
1703 | if (bfd_seek (abfd, s->rel_filepos, SEEK_SET) != 0) |
1704 | return false; | |
9783e04a DM |
1705 | for (i = 0; i < s->reloc_count; i++) |
1706 | { | |
1707 | struct internal_reloc n; | |
1708 | arelent *q = p[i]; | |
1709 | memset ((PTR) & n, 0, sizeof (n)); | |
1710 | ||
89665c85 SC |
1711 | /* Now we've renumbered the symbols we know where the |
1712 | undefined symbols live in the table. Check the reloc | |
1713 | entries for symbols who's output bfd isn't the right one. | |
1714 | This is because the symbol was undefined (which means | |
1715 | that all the pointers are never made to point to the same | |
1716 | place). This is a bad thing,'cause the symbols attached | |
1717 | to the output bfd are indexed, so that the relocation | |
1718 | entries know which symbol index they point to. So we | |
1719 | have to look up the output symbol here. */ | |
1720 | ||
1721 | if (q->sym_ptr_ptr[0]->the_bfd != abfd) | |
1722 | { | |
1723 | int i; | |
1724 | const char *sname = q->sym_ptr_ptr[0]->name; | |
1725 | asymbol **outsyms = abfd->outsymbols; | |
1726 | for (i = first_undef; outsyms[i]; i++) | |
1727 | { | |
1728 | const char *intable = outsyms[i]->name; | |
1729 | if (strcmp (intable, sname) == 0) { | |
1730 | /* got a hit, so repoint the reloc */ | |
1731 | q->sym_ptr_ptr = outsyms + i; | |
1732 | break; | |
1733 | } | |
1734 | } | |
1735 | } | |
1736 | ||
9783e04a DM |
1737 | n.r_vaddr = q->address + s->vma; |
1738 | ||
1739 | #ifdef R_IHCONST | |
1740 | /* The 29k const/consth reloc pair is a real kludge. The consth | |
89665c85 SC |
1741 | part doesn't have a symbol; it has an offset. So rebuilt |
1742 | that here. */ | |
9783e04a DM |
1743 | if (q->howto->type == R_IHCONST) |
1744 | n.r_symndx = q->addend; | |
1745 | else | |
780c477a | 1746 | #endif |
89665c85 SC |
1747 | if (q->sym_ptr_ptr) |
1748 | { | |
1749 | if (q->sym_ptr_ptr == bfd_abs_section_ptr->symbol_ptr_ptr) | |
1750 | /* This is a relocation relative to the absolute symbol. */ | |
1751 | n.r_symndx = -1; | |
1752 | else | |
1753 | { | |
1754 | n.r_symndx = get_index ((*(q->sym_ptr_ptr))); | |
1755 | /* Take notice if the symbol reloc points to a symbol | |
1756 | we don't have in our symbol table. What should we | |
1757 | do for this?? */ | |
1758 | if (n.r_symndx > obj_conv_table_size (abfd)) | |
1759 | abort (); | |
1760 | } | |
1761 | } | |
780c477a | 1762 | |
cd83759c | 1763 | #ifdef SWAP_OUT_RELOC_OFFSET |
9783e04a | 1764 | n.r_offset = q->addend; |
cd83759c | 1765 | #endif |
c26d7d17 | 1766 | |
0f268757 | 1767 | #ifdef SELECT_RELOC |
9783e04a DM |
1768 | /* Work out reloc type from what is required */ |
1769 | SELECT_RELOC (n, q->howto); | |
0f268757 | 1770 | #else |
9783e04a | 1771 | n.r_type = q->howto->type; |
0f268757 | 1772 | #endif |
9783e04a | 1773 | coff_swap_reloc_out (abfd, &n, &dst); |
791a3db4 ILT |
1774 | if (bfd_write ((PTR) & dst, 1, RELSZ, abfd) != RELSZ) |
1775 | return false; | |
9783e04a | 1776 | } |
d19df9b5 ILT |
1777 | |
1778 | #ifdef TARG_AUX | |
1779 | if (p != NULL) | |
1780 | free (p); | |
1781 | #endif | |
0f268757 | 1782 | } |
791a3db4 ILT |
1783 | |
1784 | return true; | |
6f715d66 | 1785 | } |
7a8b18b6 SC |
1786 | |
1787 | /* Set flags and magic number of a coff file from architecture and machine | |
1788 | type. Result is true if we can represent the arch&type, false if not. */ | |
0f268757 | 1789 | |
9783e04a | 1790 | static boolean |
57a1867e DM |
1791 | coff_set_flags (abfd, magicp, flagsp) |
1792 | bfd * abfd; | |
1793 | unsigned *magicp; | |
1794 | unsigned short *flagsp; | |
6f715d66 | 1795 | { |
9783e04a | 1796 | switch (bfd_get_arch (abfd)) |
dc999ad9 | 1797 | { |
9783e04a DM |
1798 | #ifdef Z8KMAGIC |
1799 | case bfd_arch_z8k: | |
1800 | *magicp = Z8KMAGIC; | |
1801 | switch (bfd_get_mach (abfd)) | |
1802 | { | |
1803 | case bfd_mach_z8001: | |
1804 | *flagsp = F_Z8001; | |
1805 | break; | |
1806 | case bfd_mach_z8002: | |
1807 | *flagsp = F_Z8002; | |
1808 | break; | |
1809 | default: | |
1810 | return false; | |
1811 | } | |
1812 | return true; | |
dc999ad9 | 1813 | #endif |
0f268757 | 1814 | #ifdef I960ROMAGIC |
cbdc7909 | 1815 | |
3b4f1a5d | 1816 | case bfd_arch_i960: |
cbdc7909 | 1817 | |
6f715d66 | 1818 | { |
9783e04a | 1819 | unsigned flags; |
6f715d66 SC |
1820 | *magicp = I960ROMAGIC; |
1821 | /* | |
1822 | ((bfd_get_file_flags(abfd) & WP_TEXT) ? I960ROMAGIC : | |
1823 | I960RWMAGIC); FIXME??? | |
1824 | */ | |
9783e04a DM |
1825 | switch (bfd_get_mach (abfd)) |
1826 | { | |
1827 | case bfd_mach_i960_core: | |
1828 | flags = F_I960CORE; | |
1829 | break; | |
1830 | case bfd_mach_i960_kb_sb: | |
1831 | flags = F_I960KB; | |
1832 | break; | |
1833 | case bfd_mach_i960_mc: | |
1834 | flags = F_I960MC; | |
1835 | break; | |
1836 | case bfd_mach_i960_xa: | |
1837 | flags = F_I960XA; | |
1838 | break; | |
1839 | case bfd_mach_i960_ca: | |
1840 | flags = F_I960CA; | |
1841 | break; | |
1842 | case bfd_mach_i960_ka_sa: | |
1843 | flags = F_I960KA; | |
1844 | break; | |
57289b5c JL |
1845 | case bfd_mach_i960_jx: |
1846 | flags = F_I960JX; | |
b5b056fc | 1847 | break; |
cbe75cb6 ILT |
1848 | case bfd_mach_i960_hx: |
1849 | flags = F_I960HX; | |
1850 | break; | |
9783e04a DM |
1851 | default: |
1852 | return false; | |
1853 | } | |
6f715d66 SC |
1854 | *flagsp = flags; |
1855 | return true; | |
1856 | } | |
9783e04a | 1857 | break; |
0f268757 | 1858 | #endif |
89665c85 SC |
1859 | #ifdef ARMMAGIC |
1860 | case bfd_arch_arm: | |
1861 | *magicp = ARMMAGIC; | |
1862 | return true; | |
1863 | #endif | |
80b2dd82 KK |
1864 | #ifdef PPCMAGIC |
1865 | case bfd_arch_powerpc: | |
1866 | *magicp = PPCMAGIC; | |
1867 | return true; | |
1868 | break; | |
1869 | #endif | |
20fdc627 | 1870 | #ifdef I386MAGIC |
9783e04a DM |
1871 | case bfd_arch_i386: |
1872 | *magicp = I386MAGIC; | |
c188b0be | 1873 | #ifdef LYNXOS |
9783e04a DM |
1874 | /* Just overwrite the usual value if we're doing Lynx. */ |
1875 | *magicp = LYNXCOFFMAGIC; | |
c188b0be | 1876 | #endif |
9783e04a DM |
1877 | return true; |
1878 | break; | |
20fdc627 | 1879 | #endif |
cf587de8 ILT |
1880 | #ifdef I860MAGIC |
1881 | case bfd_arch_i860: | |
1882 | *magicp = I860MAGIC; | |
1883 | return true; | |
1884 | break; | |
1885 | #endif | |
0f268757 | 1886 | #ifdef MC68MAGIC |
9783e04a | 1887 | case bfd_arch_m68k: |
97eb2f0c | 1888 | #ifdef APOLLOM68KMAGIC |
9783e04a | 1889 | *magicp = APOLLO_COFF_VERSION_NUMBER; |
97eb2f0c | 1890 | #else |
9783e04a | 1891 | *magicp = MC68MAGIC; |
c188b0be DM |
1892 | #endif |
1893 | #ifdef LYNXOS | |
9783e04a DM |
1894 | /* Just overwrite the usual value if we're doing Lynx. */ |
1895 | *magicp = LYNXCOFFMAGIC; | |
97eb2f0c | 1896 | #endif |
9783e04a DM |
1897 | return true; |
1898 | break; | |
0f268757 | 1899 | #endif |
cbdc7909 | 1900 | |
0f268757 | 1901 | #ifdef MC88MAGIC |
3b4f1a5d SC |
1902 | case bfd_arch_m88k: |
1903 | *magicp = MC88OMAGIC; | |
1904 | return true; | |
1905 | break; | |
1906 | #endif | |
1907 | #ifdef H8300MAGIC | |
1908 | case bfd_arch_h8300: | |
9783e04a DM |
1909 | switch (bfd_get_mach (abfd)) |
1910 | { | |
1911 | case bfd_mach_h8300: | |
1912 | *magicp = H8300MAGIC; | |
1913 | return true; | |
1914 | case bfd_mach_h8300h: | |
1915 | *magicp = H8300HMAGIC; | |
1916 | return true; | |
1917 | } | |
3b4f1a5d | 1918 | break; |
0f268757 | 1919 | #endif |
9faacb92 | 1920 | |
f135c692 | 1921 | #ifdef SH_ARCH_MAGIC_BIG |
9783e04a | 1922 | case bfd_arch_sh: |
d812945a | 1923 | if (bfd_big_endian (abfd)) |
f135c692 ILT |
1924 | *magicp = SH_ARCH_MAGIC_BIG; |
1925 | else | |
1926 | *magicp = SH_ARCH_MAGIC_LITTLE; | |
9faacb92 SC |
1927 | return true; |
1928 | break; | |
1929 | #endif | |
1930 | ||
c188b0be | 1931 | #ifdef SPARCMAGIC |
9783e04a DM |
1932 | case bfd_arch_sparc: |
1933 | *magicp = SPARCMAGIC; | |
c188b0be | 1934 | #ifdef LYNXOS |
9783e04a DM |
1935 | /* Just overwrite the usual value if we're doing Lynx. */ |
1936 | *magicp = LYNXCOFFMAGIC; | |
c188b0be | 1937 | #endif |
9783e04a DM |
1938 | return true; |
1939 | break; | |
c188b0be DM |
1940 | #endif |
1941 | ||
142ce43e SC |
1942 | #ifdef H8500MAGIC |
1943 | case bfd_arch_h8500: | |
1944 | *magicp = H8500MAGIC; | |
1945 | return true; | |
1946 | break; | |
1947 | #endif | |
41f50af0 | 1948 | #ifdef A29K_MAGIC_BIG |
3b4f1a5d | 1949 | case bfd_arch_a29k: |
d812945a | 1950 | if (bfd_big_endian (abfd)) |
9783e04a | 1951 | *magicp = A29K_MAGIC_BIG; |
3b4f1a5d | 1952 | else |
9783e04a | 1953 | *magicp = A29K_MAGIC_LITTLE; |
3b4f1a5d SC |
1954 | return true; |
1955 | break; | |
41f50af0 | 1956 | #endif |
cbdc7909 | 1957 | |
dc999ad9 | 1958 | #ifdef WE32KMAGIC |
9783e04a DM |
1959 | case bfd_arch_we32k: |
1960 | *magicp = WE32KMAGIC; | |
1961 | return true; | |
1962 | break; | |
dc999ad9 ILT |
1963 | #endif |
1964 | ||
cbdc7909 | 1965 | #ifdef U802TOCMAGIC |
9783e04a | 1966 | case bfd_arch_rs6000: |
80b2dd82 | 1967 | #ifndef PPCMAGIC |
09a28207 | 1968 | case bfd_arch_powerpc: |
80b2dd82 | 1969 | #endif |
9783e04a DM |
1970 | *magicp = U802TOCMAGIC; |
1971 | return true; | |
1972 | break; | |
cbdc7909 JG |
1973 | #endif |
1974 | ||
9783e04a DM |
1975 | default: /* Unknown architecture */ |
1976 | /* return false; -- fall through to "return false" below, to avoid | |
cbdc7909 | 1977 | "statement never reached" errors on the one below. */ |
9783e04a DM |
1978 | break; |
1979 | } | |
cbdc7909 | 1980 | |
6f715d66 SC |
1981 | return false; |
1982 | } | |
0f268757 SC |
1983 | |
1984 | ||
9783e04a | 1985 | static boolean |
57a1867e DM |
1986 | coff_set_arch_mach (abfd, arch, machine) |
1987 | bfd * abfd; | |
1988 | enum bfd_architecture arch; | |
1989 | unsigned long machine; | |
6f715d66 | 1990 | { |
9783e04a DM |
1991 | unsigned dummy1; |
1992 | unsigned short dummy2; | |
c16313f0 ILT |
1993 | |
1994 | if (! bfd_default_set_arch_mach (abfd, arch, machine)) | |
1995 | return false; | |
0d740984 SC |
1996 | |
1997 | if (arch != bfd_arch_unknown && | |
9783e04a | 1998 | coff_set_flags (abfd, &dummy1, &dummy2) != true) |
0d740984 | 1999 | return false; /* We can't represent this type */ |
c16313f0 | 2000 | |
0d740984 SC |
2001 | return true; /* We're easy ... */ |
2002 | } | |
0f268757 SC |
2003 | |
2004 | ||
2005 | /* Calculate the file position for each section. */ | |
2006 | ||
cbdc7909 | 2007 | static void |
57a1867e DM |
2008 | coff_compute_section_file_positions (abfd) |
2009 | bfd * abfd; | |
6f715d66 | 2010 | { |
9783e04a DM |
2011 | asection *current; |
2012 | asection *previous = (asection *) NULL; | |
2013 | file_ptr sofar = FILHSZ; | |
275143eb | 2014 | |
55c95b04 | 2015 | #ifndef I960 |
9783e04a | 2016 | file_ptr old_sofar; |
55c95b04 | 2017 | #endif |
69645d10 ILT |
2018 | unsigned int count; |
2019 | ||
a418e05d ILT |
2020 | #ifdef RS6000COFF_C |
2021 | /* On XCOFF, if we have symbols, set up the .debug section. */ | |
2022 | if (bfd_get_symcount (abfd) > 0) | |
2023 | { | |
2024 | bfd_size_type sz; | |
2025 | bfd_size_type i, symcount; | |
2026 | asymbol **symp; | |
2027 | ||
2028 | sz = 0; | |
2029 | symcount = bfd_get_symcount (abfd); | |
2030 | for (symp = abfd->outsymbols, i = 0; i < symcount; symp++, i++) | |
2031 | { | |
2032 | coff_symbol_type *cf; | |
2033 | ||
2034 | cf = coff_symbol_from (abfd, *symp); | |
2035 | if (cf != NULL | |
2036 | && cf->native != NULL | |
2037 | && SYMNAME_IN_DEBUG (&cf->native->u.syment)) | |
2038 | { | |
2039 | size_t len; | |
2040 | ||
2041 | len = strlen (bfd_asymbol_name (*symp)); | |
2042 | if (len > SYMNMLEN) | |
2043 | sz += len + 3; | |
2044 | } | |
2045 | } | |
2046 | if (sz > 0) | |
2047 | { | |
2048 | asection *dsec; | |
2049 | ||
2050 | dsec = bfd_make_section_old_way (abfd, ".debug"); | |
2051 | if (dsec == NULL) | |
2052 | abort (); | |
2053 | dsec->_raw_size = sz; | |
2054 | dsec->flags |= SEC_HAS_CONTENTS; | |
2055 | } | |
2056 | } | |
2057 | #endif | |
c7f6ebe2 | 2058 | |
3ea928f5 | 2059 | #ifdef COFF_IMAGE_WITH_PE |
275143eb | 2060 | int page_size; |
c7f6ebe2 SC |
2061 | if (coff_data (abfd)->link_info) |
2062 | { | |
beee31b1 | 2063 | page_size = pe_data (abfd)->pe_opthdr.FileAlignment; |
c7f6ebe2 SC |
2064 | } |
2065 | else | |
2066 | page_size = PE_DEF_FILE_ALIGNMENT; | |
a418e05d ILT |
2067 | #else |
2068 | #ifdef COFF_PAGE_SIZE | |
275143eb | 2069 | int page_size = COFF_PAGE_SIZE; |
a418e05d | 2070 | #endif |
3ea928f5 | 2071 | #endif |
275143eb | 2072 | |
9783e04a DM |
2073 | if (bfd_get_start_address (abfd)) |
2074 | { | |
2075 | /* A start address may have been added to the original file. In this | |
c7f6ebe2 | 2076 | case it will need an optional header to record it. */ |
9783e04a DM |
2077 | abfd->flags |= EXEC_P; |
2078 | } | |
85e0c721 | 2079 | |
e98e6ec1 | 2080 | if (abfd->flags & EXEC_P) |
9783e04a | 2081 | sofar += AOUTSZ; |
dd984644 | 2082 | #ifdef RS6000COFF_C |
867d923d ILT |
2083 | else if (xcoff_data (abfd)->full_aouthdr) |
2084 | sofar += AOUTSZ; | |
dd984644 ILT |
2085 | else |
2086 | sofar += SMALL_AOUTSZ; | |
2087 | #endif | |
cbdc7909 | 2088 | |
e98e6ec1 | 2089 | sofar += abfd->section_count * SCNHSZ; |
c769947b SS |
2090 | |
2091 | #ifdef RS6000COFF_C | |
2092 | /* XCOFF handles overflows in the reloc and line number count fields | |
2093 | by allocating a new section header to hold the correct counts. */ | |
2094 | for (current = abfd->sections; current != NULL; current = current->next) | |
2095 | if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff) | |
2096 | sofar += SCNHSZ; | |
2097 | #endif | |
2098 | ||
69645d10 | 2099 | for (current = abfd->sections, count = 1; |
9783e04a | 2100 | current != (asection *) NULL; |
69645d10 | 2101 | current = current->next, ++count) |
9783e04a | 2102 | { |
69645d10 | 2103 | current->target_index = count; |
cbdc7909 | 2104 | |
e98e6ec1 SC |
2105 | /* Only deal with sections which have contents */ |
2106 | if (!(current->flags & SEC_HAS_CONTENTS)) | |
9783e04a | 2107 | continue; |
cbdc7909 | 2108 | |
e98e6ec1 SC |
2109 | /* Align the sections in the file to the same boundary on |
2110 | which they are aligned in virtual memory. I960 doesn't | |
2111 | do this (FIXME) so we can stay in sync with Intel. 960 | |
2112 | doesn't yet page from files... */ | |
0f268757 | 2113 | #ifndef I960 |
31a52a51 ILT |
2114 | if ((abfd->flags & EXEC_P) != 0) |
2115 | { | |
2116 | /* make sure this section is aligned on the right boundary - by | |
2117 | padding the previous section up if necessary */ | |
e98e6ec1 | 2118 | |
31a52a51 ILT |
2119 | old_sofar = sofar; |
2120 | sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); | |
2121 | if (previous != (asection *) NULL) | |
2122 | { | |
2123 | previous->_raw_size += sofar - old_sofar; | |
2124 | } | |
2125 | } | |
85e0c721 | 2126 | |
0f268757 | 2127 | #endif |
b5b056fc | 2128 | |
b5b056fc KR |
2129 | /* In demand paged files the low order bits of the file offset |
2130 | must match the low order bits of the virtual address. */ | |
275143eb | 2131 | #ifdef COFF_PAGE_SIZE |
e8fbe6d9 ILT |
2132 | if ((abfd->flags & D_PAGED) != 0 |
2133 | && (current->flags & SEC_ALLOC) != 0) | |
3ea928f5 | 2134 | sofar += (current->vma - sofar) % page_size; |
275143eb | 2135 | #endif |
e98e6ec1 | 2136 | current->filepos = sofar; |
85e0c721 | 2137 | |
beee31b1 SC |
2138 | #ifdef COFF_IMAGE_WITH_PE |
2139 | /* With PE we have to pad each section to be a multiple of its page size | |
2140 | too, and remember both sizes. Cooked_size becomes very useful. */ | |
2141 | current->_cooked_size = current->_raw_size; | |
2142 | current->_raw_size = (current->_raw_size + page_size -1) & -page_size; | |
2143 | #endif | |
2144 | ||
5e167886 | 2145 | sofar += current->_raw_size; |
beee31b1 | 2146 | |
5e167886 | 2147 | #ifndef I960 |
e98e6ec1 | 2148 | /* make sure that this section is of the right size too */ |
51776a11 SC |
2149 | if ((abfd->flags & EXEC_P) == 0) |
2150 | current->_raw_size = BFD_ALIGN (current->_raw_size, | |
2151 | 1 << current->alignment_power); | |
2152 | else | |
2153 | { | |
2154 | old_sofar = sofar; | |
2155 | sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); | |
2156 | current->_raw_size += sofar - old_sofar; | |
2157 | } | |
5e167886 | 2158 | #endif |
85e0c721 | 2159 | |
35d835c4 JK |
2160 | #ifdef _LIB |
2161 | /* Force .lib sections to start at zero. The vma is then | |
2162 | incremented in coff_set_section_contents. This is right for | |
2163 | SVR3.2. */ | |
2164 | if (strcmp (current->name, _LIB) == 0) | |
2165 | bfd_set_section_vma (abfd, current, 0); | |
2166 | #endif | |
2167 | ||
e98e6ec1 | 2168 | previous = current; |
85e0c721 | 2169 | } |
89665c85 | 2170 | |
9783e04a | 2171 | obj_relocbase (abfd) = sofar; |
69645d10 | 2172 | abfd->output_has_begun = true; |
89665c85 | 2173 | |
6f715d66 | 2174 | } |
0f268757 | 2175 | |
51776a11 SC |
2176 | #if 0 |
2177 | ||
2178 | /* This can never work, because it is called too late--after the | |
2179 | section positions have been set. I can't figure out what it is | |
2180 | for, so I am going to disable it--Ian Taylor 20 March 1996. */ | |
9783e04a | 2181 | |
8070f29d KR |
2182 | /* If .file, .text, .data, .bss symbols are missing, add them. */ |
2183 | /* @@ Should we only be adding missing symbols, or overriding the aux | |
2184 | values for existing section symbols? */ | |
9783e04a | 2185 | static boolean |
8070f29d KR |
2186 | coff_add_missing_symbols (abfd) |
2187 | bfd *abfd; | |
2188 | { | |
2189 | unsigned int nsyms = bfd_get_symcount (abfd); | |
2190 | asymbol **sympp = abfd->outsymbols; | |
2191 | asymbol **sympp2; | |
2192 | unsigned int i; | |
2193 | int need_text = 1, need_data = 1, need_bss = 1, need_file = 1; | |
0f268757 | 2194 | |
8070f29d KR |
2195 | for (i = 0; i < nsyms; i++) |
2196 | { | |
2197 | coff_symbol_type *csym = coff_symbol_from (abfd, sympp[i]); | |
2198 | CONST char *name; | |
9783e04a | 2199 | if (csym) |
8070f29d | 2200 | { |
9783e04a DM |
2201 | /* only do this if there is a coff representation of the input |
2202 | symbol */ | |
2203 | if (csym->native && csym->native->u.syment.n_sclass == C_FILE) | |
2204 | { | |
2205 | need_file = 0; | |
2206 | continue; | |
2207 | } | |
2208 | name = csym->symbol.name; | |
2209 | if (!name) | |
2210 | continue; | |
2211 | if (!strcmp (name, _TEXT)) | |
2212 | need_text = 0; | |
97eb2f0c | 2213 | #ifdef APOLLO_M68 |
9783e04a DM |
2214 | else if (!strcmp (name, ".wtext")) |
2215 | need_text = 0; | |
97eb2f0c | 2216 | #endif |
9783e04a DM |
2217 | else if (!strcmp (name, _DATA)) |
2218 | need_data = 0; | |
2219 | else if (!strcmp (name, _BSS)) | |
2220 | need_bss = 0; | |
2221 | } | |
8070f29d KR |
2222 | } |
2223 | /* Now i == bfd_get_symcount (abfd). */ | |
2224 | /* @@ For now, don't deal with .file symbol. */ | |
2225 | need_file = 0; | |
2226 | ||
2227 | if (!need_text && !need_data && !need_bss && !need_file) | |
9783e04a | 2228 | return true; |
8070f29d | 2229 | nsyms += need_text + need_data + need_bss + need_file; |
9783e04a DM |
2230 | sympp2 = (asymbol **) bfd_alloc_by_size_t (abfd, nsyms * sizeof (asymbol *)); |
2231 | if (!sympp2) | |
a9713b91 | 2232 | return false; |
8070f29d KR |
2233 | memcpy (sympp2, sympp, i * sizeof (asymbol *)); |
2234 | if (need_file) | |
2235 | { | |
2236 | /* @@ Generate fake .file symbol, in sympp2[i], and increment i. */ | |
2237 | abort (); | |
2238 | } | |
2239 | if (need_text) | |
2240 | sympp2[i++] = coff_section_symbol (abfd, _TEXT); | |
2241 | if (need_data) | |
2242 | sympp2[i++] = coff_section_symbol (abfd, _DATA); | |
2243 | if (need_bss) | |
2244 | sympp2[i++] = coff_section_symbol (abfd, _BSS); | |
9465d03e | 2245 | BFD_ASSERT (i == nsyms); |
8070f29d | 2246 | bfd_set_symtab (abfd, sympp2, nsyms); |
9783e04a | 2247 | return true; |
8070f29d | 2248 | } |
0f268757 | 2249 | |
51776a11 | 2250 | #endif /* 0 */ |
89665c85 | 2251 | |
0f268757 SC |
2252 | /* SUPPRESS 558 */ |
2253 | /* SUPPRESS 529 */ | |
9783e04a | 2254 | static boolean |
57a1867e DM |
2255 | coff_write_object_contents (abfd) |
2256 | bfd * abfd; | |
e98e6ec1 | 2257 | { |
9783e04a | 2258 | asection *current; |
9783e04a DM |
2259 | boolean hasrelocs = false; |
2260 | boolean haslinno = false; | |
dd984644 | 2261 | file_ptr scn_base; |
9783e04a DM |
2262 | file_ptr reloc_base; |
2263 | file_ptr lineno_base; | |
2264 | file_ptr sym_base; | |
9783e04a DM |
2265 | unsigned long reloc_size = 0; |
2266 | unsigned long lnno_size = 0; | |
2267 | asection *text_sec = NULL; | |
2268 | asection *data_sec = NULL; | |
2269 | asection *bss_sec = NULL; | |
cbdc7909 | 2270 | |
e98e6ec1 SC |
2271 | struct internal_filehdr internal_f; |
2272 | struct internal_aouthdr internal_a; | |
cbdc7909 | 2273 | |
57a1867e | 2274 | bfd_set_error (bfd_error_system_call); |
6590a8c9 | 2275 | |
0f268757 SC |
2276 | /* Make a pass through the symbol table to count line number entries and |
2277 | put them into the correct asections */ | |
cbdc7909 | 2278 | |
9783e04a | 2279 | lnno_size = coff_count_linenumbers (abfd) * LINESZ; |
cbdc7909 | 2280 | |
c769947b SS |
2281 | if (abfd->output_has_begun == false) |
2282 | coff_compute_section_file_positions (abfd); | |
2283 | ||
2284 | reloc_base = obj_relocbase (abfd); | |
2285 | ||
0f268757 | 2286 | /* Work out the size of the reloc and linno areas */ |
cbdc7909 | 2287 | |
e98e6ec1 | 2288 | for (current = abfd->sections; current != NULL; current = |
9783e04a | 2289 | current->next) |
69645d10 | 2290 | reloc_size += current->reloc_count * RELSZ; |
cbdc7909 | 2291 | |
0f268757 SC |
2292 | lineno_base = reloc_base + reloc_size; |
2293 | sym_base = lineno_base + lnno_size; | |
cbdc7909 | 2294 | |
0f268757 | 2295 | /* Indicate in each section->line_filepos its actual file address */ |
e98e6ec1 | 2296 | for (current = abfd->sections; current != NULL; current = |
9783e04a | 2297 | current->next) |
e98e6ec1 | 2298 | { |
69645d10 | 2299 | if (current->lineno_count) |
9783e04a | 2300 | { |
69645d10 ILT |
2301 | current->line_filepos = lineno_base; |
2302 | current->moving_line_filepos = lineno_base; | |
2303 | lineno_base += current->lineno_count * LINESZ; | |
2304 | } | |
2305 | else | |
2306 | { | |
2307 | current->line_filepos = 0; | |
2308 | } | |
2309 | if (current->reloc_count) | |
2310 | { | |
2311 | current->rel_filepos = reloc_base; | |
2312 | reloc_base += current->reloc_count * RELSZ; | |
2313 | } | |
2314 | else | |
2315 | { | |
2316 | current->rel_filepos = 0; | |
e98e6ec1 | 2317 | } |
0f268757 | 2318 | } |
9783e04a | 2319 | |
e98e6ec1 SC |
2320 | /* Write section headers to the file. */ |
2321 | internal_f.f_nscns = 0; | |
89665c85 | 2322 | |
dd984644 ILT |
2323 | if ((abfd->flags & EXEC_P) != 0) |
2324 | scn_base = FILHSZ + AOUTSZ; | |
2325 | else | |
2326 | { | |
2327 | scn_base = FILHSZ; | |
2328 | #ifdef RS6000COFF_C | |
867d923d ILT |
2329 | if (xcoff_data (abfd)->full_aouthdr) |
2330 | scn_base += AOUTSZ; | |
2331 | else | |
2332 | scn_base += SMALL_AOUTSZ; | |
dd984644 ILT |
2333 | #endif |
2334 | } | |
2335 | ||
2336 | if (bfd_seek (abfd, scn_base, SEEK_SET) != 0) | |
3332ea9c | 2337 | return false; |
cbdc7909 | 2338 | |
3332ea9c SC |
2339 | for (current = abfd->sections; |
2340 | current != NULL; | |
2341 | current = current->next) | |
2342 | { | |
2343 | struct internal_scnhdr section; | |
69645d10 | 2344 | |
89665c85 | 2345 | #ifdef COFF_WITH_PE |
beee31b1 SC |
2346 | /* If we've got a .reloc section, remember. */ |
2347 | ||
dd984644 | 2348 | #ifdef COFF_IMAGE_WITH_PE |
beee31b1 SC |
2349 | if (strcmp (current->name, ".reloc") == 0) |
2350 | { | |
2351 | pe_data (abfd)->has_reloc_section = 1; | |
2352 | } | |
dd984644 ILT |
2353 | #endif |
2354 | ||
89665c85 | 2355 | #endif |
3332ea9c SC |
2356 | internal_f.f_nscns++; |
2357 | strncpy (&(section.s_name[0]), current->name, 8); | |
b26059aa | 2358 | #ifdef _LIB |
3332ea9c SC |
2359 | /* Always set s_vaddr of .lib to 0. This is right for SVR3.2 |
2360 | Ian Taylor <ian@cygnus.com>. */ | |
2361 | if (strcmp (current->name, _LIB) == 0) | |
2362 | section.s_vaddr = 0; | |
2363 | else | |
69645d10 | 2364 | #endif |
010a405a | 2365 | section.s_vaddr = current->vma; |
3332ea9c | 2366 | section.s_paddr = current->lma; |
beee31b1 SC |
2367 | section.s_size = current->_raw_size; |
2368 | ||
2369 | #ifdef COFF_WITH_PE | |
2370 | section.s_paddr = current->_cooked_size; | |
2371 | #endif | |
3332ea9c SC |
2372 | |
2373 | /* | |
2374 | If this section has no size or is unloadable then the scnptr | |
2375 | will be 0 too | |
2376 | */ | |
2377 | if (current->_raw_size == 0 || | |
2378 | (current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
2379 | { | |
2380 | section.s_scnptr = 0; | |
2381 | } | |
2382 | else | |
2383 | { | |
2384 | section.s_scnptr = current->filepos; | |
2385 | } | |
2386 | section.s_relptr = current->rel_filepos; | |
2387 | section.s_lnnoptr = current->line_filepos; | |
2388 | section.s_nreloc = current->reloc_count; | |
2389 | section.s_nlnno = current->lineno_count; | |
2390 | if (current->reloc_count != 0) | |
2391 | hasrelocs = true; | |
2392 | if (current->lineno_count != 0) | |
2393 | haslinno = true; | |
2394 | ||
c769947b SS |
2395 | #ifdef RS6000COFF_C |
2396 | /* Indicate the use of an XCOFF overflow section header. */ | |
2397 | if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff) | |
2398 | { | |
2399 | section.s_nreloc = 0xffff; | |
2400 | section.s_nlnno = 0xffff; | |
2401 | } | |
2402 | #endif | |
2403 | ||
3332ea9c SC |
2404 | section.s_flags = sec_to_styp_flags (current->name, current->flags); |
2405 | ||
2406 | if (!strcmp (current->name, _TEXT)) | |
2407 | { | |
2408 | text_sec = current; | |
2409 | } | |
2410 | else if (!strcmp (current->name, _DATA)) | |
2411 | { | |
2412 | data_sec = current; | |
3332ea9c SC |
2413 | } |
2414 | else if (!strcmp (current->name, _BSS)) | |
2415 | { | |
2416 | bss_sec = current; | |
2417 | } | |
cbdc7909 | 2418 | |
0f268757 | 2419 | #ifdef I960 |
3332ea9c SC |
2420 | section.s_align = (current->alignment_power |
2421 | ? 1 << current->alignment_power | |
2422 | : 0); | |
2423 | ||
2424 | #endif | |
0f268757 | 2425 | |
3332ea9c SC |
2426 | #ifdef COFF_IMAGE_WITH_PE |
2427 | /* suppress output of the sections if they are null. ld includes | |
2428 | the bss and data sections even if there is no size assigned | |
2429 | to them. NT loader doesn't like it if these section headers are | |
2430 | included if the sections themselves are not needed */ | |
2431 | if (section.s_size == 0) | |
2432 | internal_f.f_nscns--; | |
2433 | else | |
0f268757 | 2434 | #endif |
69645d10 ILT |
2435 | { |
2436 | SCNHDR buff; | |
3332ea9c SC |
2437 | if (coff_swap_scnhdr_out (abfd, §ion, &buff) == 0 |
2438 | || bfd_write ((PTR) (&buff), 1, SCNHSZ, abfd) != SCNHSZ) | |
2439 | return false; | |
69645d10 | 2440 | } |
5a28331f ILT |
2441 | |
2442 | #ifdef COFF_WITH_PE | |
2443 | /* PE stores COMDAT section information in the symbol table. If | |
2444 | this section is supposed to have some COMDAT info, track down | |
2445 | the symbol in the symbol table and modify it. */ | |
2446 | if ((current->flags & SEC_LINK_ONCE) != 0) | |
2447 | { | |
2448 | unsigned int i, count; | |
2449 | asymbol **psym; | |
2450 | ||
2451 | count = bfd_get_symcount (abfd); | |
2452 | for (i = 0, psym = abfd->outsymbols; i < count; i++, psym++) | |
2453 | { | |
2454 | coff_symbol_type *csym; | |
2455 | combined_entry_type *aux; | |
2456 | ||
2457 | if (strcmp ((*psym)->name, current->name) != 0) | |
2458 | continue; | |
2459 | ||
2460 | csym = coff_symbol_from (abfd, *psym); | |
2461 | if (csym == NULL | |
2462 | || csym->native == NULL | |
2463 | || csym->native->u.syment.n_numaux < 1 | |
2464 | || csym->native->u.syment.n_sclass != C_STAT | |
2465 | || csym->native->u.syment.n_type != T_NULL) | |
2466 | continue; | |
2467 | ||
2468 | /* Here *PSYM is the section symbol for CURRENT. */ | |
2469 | ||
2470 | /* We don't touch the x_checksum field. The | |
2471 | x_associated field is not currently supported. */ | |
2472 | ||
2473 | aux = csym->native + 1; | |
2474 | switch (current->flags & SEC_LINK_DUPLICATES) | |
2475 | { | |
2476 | case SEC_LINK_DUPLICATES_DISCARD: | |
2477 | aux->u.auxent.x_scn.x_comdat = IMAGE_COMDAT_SELECT_ANY; | |
2478 | break; | |
2479 | ||
2480 | case SEC_LINK_DUPLICATES_ONE_ONLY: | |
2481 | aux->u.auxent.x_scn.x_comdat = | |
2482 | IMAGE_COMDAT_SELECT_NODUPLICATES; | |
2483 | break; | |
2484 | ||
2485 | case SEC_LINK_DUPLICATES_SAME_SIZE: | |
2486 | aux->u.auxent.x_scn.x_comdat = | |
2487 | IMAGE_COMDAT_SELECT_SAME_SIZE; | |
2488 | break; | |
2489 | ||
2490 | case SEC_LINK_DUPLICATES_SAME_CONTENTS: | |
2491 | aux->u.auxent.x_scn.x_comdat = | |
2492 | IMAGE_COMDAT_SELECT_EXACT_MATCH; | |
2493 | break; | |
2494 | } | |
2495 | } | |
2496 | } | |
2497 | #endif /* COFF_WITH_PE */ | |
3332ea9c SC |
2498 | } |
2499 | ||
c769947b SS |
2500 | #ifdef RS6000COFF_C |
2501 | /* XCOFF handles overflows in the reloc and line number count fields | |
2502 | by creating a new section header to hold the correct values. */ | |
2503 | for (current = abfd->sections; current != NULL; current = current->next) | |
2504 | { | |
2505 | if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff) | |
2506 | { | |
2507 | struct internal_scnhdr scnhdr; | |
2508 | SCNHDR buff; | |
e98e6ec1 | 2509 | |
c769947b SS |
2510 | internal_f.f_nscns++; |
2511 | strncpy (&(scnhdr.s_name[0]), current->name, 8); | |
2512 | scnhdr.s_paddr = current->reloc_count; | |
2513 | scnhdr.s_vaddr = current->lineno_count; | |
2514 | scnhdr.s_size = 0; | |
2515 | scnhdr.s_scnptr = 0; | |
2516 | scnhdr.s_relptr = current->rel_filepos; | |
2517 | scnhdr.s_lnnoptr = current->line_filepos; | |
2518 | scnhdr.s_nreloc = current->target_index; | |
2519 | scnhdr.s_nlnno = current->target_index; | |
2520 | scnhdr.s_flags = STYP_OVRFLO; | |
2521 | if (coff_swap_scnhdr_out (abfd, &scnhdr, &buff) == 0 | |
2522 | || bfd_write ((PTR) &buff, 1, SCNHSZ, abfd) != SCNHSZ) | |
2523 | return false; | |
2524 | } | |
2525 | } | |
2526 | #endif | |
0f268757 SC |
2527 | |
2528 | /* OK, now set up the filehdr... */ | |
e98e6ec1 SC |
2529 | |
2530 | /* Don't include the internal abs section in the section count */ | |
2531 | ||
0f268757 | 2532 | /* |
89665c85 SC |
2533 | We will NOT put a fucking timestamp in the header here. Every time you |
2534 | put it back, I will come in and take it out again. I'm sorry. This | |
2535 | field does not belong here. We fill it with a 0 so it compares the | |
2536 | same but is not a reasonable time. -- gnu@cygnus.com | |
2537 | */ | |
5944d75b | 2538 | internal_f.f_timdat = 0; |
0f268757 | 2539 | |
0f268757 SC |
2540 | internal_f.f_flags = 0; |
2541 | ||
2542 | if (abfd->flags & EXEC_P) | |
9783e04a | 2543 | internal_f.f_opthdr = AOUTSZ; |
0f268757 | 2544 | else |
dd984644 ILT |
2545 | { |
2546 | internal_f.f_opthdr = 0; | |
2547 | #ifdef RS6000COFF_C | |
867d923d ILT |
2548 | if (xcoff_data (abfd)->full_aouthdr) |
2549 | internal_f.f_opthdr = AOUTSZ; | |
2550 | else | |
2551 | internal_f.f_opthdr = SMALL_AOUTSZ; | |
dd984644 ILT |
2552 | #endif |
2553 | } | |
0f268757 SC |
2554 | |
2555 | if (!hasrelocs) | |
9783e04a | 2556 | internal_f.f_flags |= F_RELFLG; |
0f268757 | 2557 | if (!haslinno) |
9783e04a | 2558 | internal_f.f_flags |= F_LNNO; |
0f268757 | 2559 | if (abfd->flags & EXEC_P) |
9783e04a | 2560 | internal_f.f_flags |= F_EXEC; |
a0f3f080 | 2561 | |
d6f41a7d | 2562 | /* FIXME: this is wrong for PPC_PE! */ |
d812945a | 2563 | if (bfd_little_endian (abfd)) |
9783e04a DM |
2564 | internal_f.f_flags |= F_AR32WR; |
2565 | else | |
2566 | internal_f.f_flags |= F_AR32W; | |
a0f3f080 | 2567 | |
0f268757 | 2568 | /* |
89665c85 SC |
2569 | FIXME, should do something about the other byte orders and |
2570 | architectures. | |
2571 | */ | |
0f268757 | 2572 | |
5f710a3a ILT |
2573 | #ifdef RS6000COFF_C |
2574 | if ((abfd->flags & DYNAMIC) != 0) | |
2575 | internal_f.f_flags |= F_SHROBJ; | |
2576 | if (bfd_get_section_by_name (abfd, _LOADER) != NULL) | |
2577 | internal_f.f_flags |= F_DYNLOAD; | |
2578 | #endif | |
2579 | ||
ab31ae53 KR |
2580 | memset (&internal_a, 0, sizeof internal_a); |
2581 | ||
0f268757 SC |
2582 | /* Set up architecture-dependent stuff */ |
2583 | ||
9783e04a DM |
2584 | { |
2585 | unsigned int magic = 0; | |
2586 | unsigned short flags = 0; | |
2587 | coff_set_flags (abfd, &magic, &flags); | |
2588 | internal_f.f_magic = magic; | |
2589 | internal_f.f_flags |= flags; | |
2590 | /* ...and the "opt"hdr... */ | |
0f268757 | 2591 | |
cbdc7909 | 2592 | #ifdef A29K |
9783e04a DM |
2593 | #ifdef ULTRA3 /* NYU's machine */ |
2594 | /* FIXME: This is a bogus check. I really want to see if there | |
89665c85 SC |
2595 | * is a .shbss or a .shdata section, if so then set the magic |
2596 | * number to indicate a shared data executable. | |
2597 | */ | |
9783e04a | 2598 | if (internal_f.f_nscns >= 7) |
89665c85 | 2599 | internal_a.magic = SHMAGIC; /* Shared magic */ |
9783e04a DM |
2600 | else |
2601 | #endif /* ULTRA3 */ | |
89665c85 | 2602 | internal_a.magic = NMAGIC; /* Assume separate i/d */ |
41f50af0 | 2603 | #define __A_MAGIC_SET__ |
9783e04a | 2604 | #endif /* A29K */ |
cf587de8 ILT |
2605 | #ifdef I860 |
2606 | /* FIXME: What are the a.out magic numbers for the i860? */ | |
2607 | internal_a.magic = 0; | |
2608 | #define __A_MAGIC_SET__ | |
2609 | #endif /* I860 */ | |
0f268757 | 2610 | #ifdef I960 |
9783e04a | 2611 | internal_a.magic = (magic == I960ROMAGIC ? NMAGIC : OMAGIC); |
41f50af0 | 2612 | #define __A_MAGIC_SET__ |
9783e04a | 2613 | #endif /* I960 */ |
0f268757 | 2614 | #if M88 |
41f50af0 | 2615 | #define __A_MAGIC_SET__ |
9783e04a DM |
2616 | internal_a.magic = PAGEMAGICBCS; |
2617 | #endif /* M88 */ | |
41f50af0 | 2618 | |
97eb2f0c KR |
2619 | #if APOLLO_M68 |
2620 | #define __A_MAGIC_SET__ | |
9783e04a | 2621 | internal_a.magic = APOLLO_COFF_VERSION_NUMBER; |
97eb2f0c KR |
2622 | #endif |
2623 | ||
e8fbe6d9 | 2624 | #if defined(M68) || defined(WE32K) || defined(M68K) |
41f50af0 | 2625 | #define __A_MAGIC_SET__ |
e8fbe6d9 ILT |
2626 | #if defined(LYNXOS) |
2627 | internal_a.magic = LYNXCOFFMAGIC; | |
7f82c7e1 | 2628 | #else |
d19df9b5 ILT |
2629 | #if defined(TARG_AUX) |
2630 | internal_a.magic = (abfd->flags & D_PAGED ? PAGEMAGICPEXECPAGED : | |
2631 | abfd->flags & WP_TEXT ? PAGEMAGICPEXECSWAPPED : | |
2632 | PAGEMAGICEXECSWAPPED); | |
2633 | #else | |
7f82c7e1 ILT |
2634 | #if defined (PAGEMAGICPEXECPAGED) |
2635 | internal_a.magic = PAGEMAGICPEXECPAGED; | |
2636 | #endif | |
d19df9b5 | 2637 | #endif /* TARG_AUX */ |
fa0c23eb | 2638 | #endif /* LYNXOS */ |
89665c85 | 2639 | #endif /* M68 || WE32K || M68K */ |
8ad2a31d | 2640 | |
89665c85 SC |
2641 | #if defined(ARM) |
2642 | #define __A_MAGIC_SET__ | |
2643 | internal_a.magic = ZMAGIC; | |
2644 | #endif | |
221d1e19 | 2645 | #if defined(PPC_PE) |
80b2dd82 | 2646 | #define __A_MAGIC_SET__ |
d6f41a7d | 2647 | internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC; |
80b2dd82 | 2648 | #endif |
e8fbe6d9 | 2649 | #if defined(I386) |
9783e04a | 2650 | #define __A_MAGIC_SET__ |
e8fbe6d9 ILT |
2651 | #if defined(LYNXOS) |
2652 | internal_a.magic = LYNXCOFFMAGIC; | |
89665c85 | 2653 | #else /* LYNXOS */ |
9783e04a | 2654 | internal_a.magic = ZMAGIC; |
e8fbe6d9 | 2655 | #endif /* LYNXOS */ |
8ad2a31d | 2656 | #endif /* I386 */ |
41f50af0 | 2657 | |
e8fbe6d9 ILT |
2658 | #if defined(SPARC) |
2659 | #define __A_MAGIC_SET__ | |
2660 | #if defined(LYNXOS) | |
89665c85 SC |
2661 | internal_a.magic = LYNXCOFFMAGIC; |
2662 | #endif /* LYNXOS */ | |
2663 | #endif /* SPARC */ | |
e8fbe6d9 | 2664 | |
cbdc7909 JG |
2665 | #if RS6000COFF_C |
2666 | #define __A_MAGIC_SET__ | |
9783e04a | 2667 | internal_a.magic = (abfd->flags & D_PAGED) ? RS6K_AOUTHDR_ZMAGIC : |
89665c85 SC |
2668 | (abfd->flags & WP_TEXT) ? RS6K_AOUTHDR_NMAGIC : |
2669 | RS6K_AOUTHDR_OMAGIC; | |
cbdc7909 JG |
2670 | #endif |
2671 | ||
41f50af0 | 2672 | #ifndef __A_MAGIC_SET__ |
9783e04a | 2673 | #include "Your aouthdr magic number is not being set!" |
41f50af0 | 2674 | #else |
9783e04a | 2675 | #undef __A_MAGIC_SET__ |
0f268757 | 2676 | #endif |
9783e04a | 2677 | } |
e18c4e8f ILT |
2678 | |
2679 | /* FIXME: Does anybody ever set this to another value? */ | |
2680 | internal_a.vstamp = 0; | |
2681 | ||
0f268757 | 2682 | /* Now should write relocs, strings, syms */ |
9783e04a DM |
2683 | obj_sym_filepos (abfd) = sym_base; |
2684 | ||
2685 | if (bfd_get_symcount (abfd) != 0) | |
2686 | { | |
89665c85 | 2687 | int firstundef; |
51776a11 | 2688 | #if 0 |
9783e04a DM |
2689 | if (!coff_add_missing_symbols (abfd)) |
2690 | return false; | |
2691 | #endif | |
89665c85 | 2692 | if (!coff_renumber_symbols (abfd, &firstundef)) |
9783e04a DM |
2693 | return false; |
2694 | coff_mangle_symbols (abfd); | |
bfe8224f ILT |
2695 | if (! coff_write_symbols (abfd)) |
2696 | return false; | |
791a3db4 ILT |
2697 | if (! coff_write_linenumbers (abfd)) |
2698 | return false; | |
89665c85 | 2699 | if (! coff_write_relocs (abfd, firstundef)) |
9783e04a | 2700 | return false; |
e98e6ec1 | 2701 | } |
a418e05d | 2702 | #ifdef COFF_IMAGE_WITH_PE |
221d1e19 | 2703 | #ifdef PPC_PE |
a418e05d ILT |
2704 | else if ((abfd->flags & EXEC_P) != 0) |
2705 | { | |
2706 | bfd_byte b; | |
2707 | ||
2708 | /* PowerPC PE appears to require that all executable files be | |
2709 | rounded up to the page size. */ | |
2710 | b = 0; | |
2711 | if (bfd_seek (abfd, | |
2712 | BFD_ALIGN (sym_base, COFF_PAGE_SIZE) - 1, | |
2713 | SEEK_SET) != 0 | |
2714 | || bfd_write (&b, 1, 1, abfd) != 1) | |
2715 | return false; | |
2716 | } | |
2717 | #endif | |
2718 | #endif | |
6ceff8e7 ILT |
2719 | |
2720 | /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF | |
2721 | backend linker, and obj_raw_syment_count is not valid until after | |
2722 | coff_write_symbols is called. */ | |
2723 | if (obj_raw_syment_count (abfd) != 0) | |
7860fe38 ILT |
2724 | { |
2725 | internal_f.f_symptr = sym_base; | |
2726 | #ifdef RS6000COFF_C | |
2727 | /* AIX appears to require that F_RELFLG not be set if there are | |
2728 | local symbols but no relocations. */ | |
2729 | internal_f.f_flags &=~ F_RELFLG; | |
2730 | #endif | |
2731 | } | |
6ceff8e7 ILT |
2732 | else |
2733 | { | |
2734 | internal_f.f_symptr = 0; | |
2735 | internal_f.f_flags |= F_LSYMS; | |
2736 | } | |
2737 | ||
9783e04a DM |
2738 | if (text_sec) |
2739 | { | |
2740 | internal_a.tsize = bfd_get_section_size_before_reloc (text_sec); | |
e9614321 | 2741 | internal_a.text_start = internal_a.tsize ? text_sec->vma : 0; |
e98e6ec1 | 2742 | } |
9783e04a DM |
2743 | if (data_sec) |
2744 | { | |
2745 | internal_a.dsize = bfd_get_section_size_before_reloc (data_sec); | |
e9614321 | 2746 | internal_a.data_start = internal_a.dsize ? data_sec->vma : 0; |
e98e6ec1 | 2747 | } |
9783e04a DM |
2748 | if (bss_sec) |
2749 | { | |
2750 | internal_a.bsize = bfd_get_section_size_before_reloc (bss_sec); | |
28a0c103 ILT |
2751 | if (internal_a.bsize && bss_sec->vma < internal_a.data_start) |
2752 | internal_a.data_start = bss_sec->vma; | |
e98e6ec1 | 2753 | } |
0f268757 | 2754 | |
e9614321 | 2755 | internal_a.entry = bfd_get_start_address (abfd); |
69645d10 | 2756 | internal_f.f_nsyms = obj_raw_syment_count (abfd); |
0f268757 | 2757 | |
5f710a3a | 2758 | #ifdef RS6000COFF_C |
867d923d | 2759 | if (xcoff_data (abfd)->full_aouthdr) |
5f710a3a | 2760 | { |
867d923d | 2761 | bfd_vma toc; |
5f710a3a ILT |
2762 | asection *loader_sec; |
2763 | ||
7906bf87 ILT |
2764 | internal_a.vstamp = 1; |
2765 | ||
d19df9b5 ILT |
2766 | internal_a.o_snentry = xcoff_data (abfd)->snentry; |
2767 | if (internal_a.o_snentry == 0) | |
2768 | internal_a.entry = (bfd_vma) -1; | |
867d923d | 2769 | |
5f710a3a ILT |
2770 | if (text_sec != NULL) |
2771 | { | |
2772 | internal_a.o_sntext = text_sec->target_index; | |
2773 | internal_a.o_algntext = bfd_get_section_alignment (abfd, text_sec); | |
2774 | } | |
2775 | else | |
2776 | { | |
2777 | internal_a.o_sntext = 0; | |
2778 | internal_a.o_algntext = 0; | |
2779 | } | |
2780 | if (data_sec != NULL) | |
2781 | { | |
2782 | internal_a.o_sndata = data_sec->target_index; | |
2783 | internal_a.o_algndata = bfd_get_section_alignment (abfd, data_sec); | |
2784 | } | |
2785 | else | |
2786 | { | |
2787 | internal_a.o_sndata = 0; | |
2788 | internal_a.o_algndata = 0; | |
2789 | } | |
2790 | loader_sec = bfd_get_section_by_name (abfd, ".loader"); | |
2791 | if (loader_sec != NULL) | |
2792 | internal_a.o_snloader = loader_sec->target_index; | |
2793 | else | |
2794 | internal_a.o_snloader = 0; | |
2795 | if (bss_sec != NULL) | |
2796 | internal_a.o_snbss = bss_sec->target_index; | |
2797 | else | |
2798 | internal_a.o_snbss = 0; | |
2799 | ||
2800 | toc = xcoff_data (abfd)->toc; | |
2801 | internal_a.o_toc = toc; | |
d19df9b5 | 2802 | internal_a.o_sntoc = xcoff_data (abfd)->sntoc; |
5f710a3a ILT |
2803 | |
2804 | internal_a.o_modtype = xcoff_data (abfd)->modtype; | |
dd984644 ILT |
2805 | if (xcoff_data (abfd)->cputype != -1) |
2806 | internal_a.o_cputype = xcoff_data (abfd)->cputype; | |
2807 | else | |
2808 | { | |
2809 | switch (bfd_get_arch (abfd)) | |
2810 | { | |
2811 | case bfd_arch_rs6000: | |
2812 | internal_a.o_cputype = 4; | |
2813 | break; | |
2814 | case bfd_arch_powerpc: | |
2815 | if (bfd_get_mach (abfd) == 0) | |
2816 | internal_a.o_cputype = 3; | |
2817 | else | |
2818 | internal_a.o_cputype = 1; | |
2819 | break; | |
2820 | default: | |
2821 | abort (); | |
2822 | } | |
2823 | } | |
5f710a3a ILT |
2824 | internal_a.o_maxstack = xcoff_data (abfd)->maxstack; |
2825 | internal_a.o_maxdata = xcoff_data (abfd)->maxdata; | |
2826 | } | |
2827 | #endif | |
2828 | ||
0f268757 | 2829 | /* now write them */ |
9783e04a DM |
2830 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) |
2831 | return false; | |
2832 | { | |
51776a11 | 2833 | char buff[FILHSZ]; |
9783e04a | 2834 | coff_swap_filehdr_out (abfd, (PTR) & internal_f, (PTR) & buff); |
791a3db4 ILT |
2835 | if (bfd_write ((PTR) & buff, 1, FILHSZ, abfd) != FILHSZ) |
2836 | return false; | |
9783e04a DM |
2837 | } |
2838 | if (abfd->flags & EXEC_P) | |
2839 | { | |
51776a11 SC |
2840 | /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR. |
2841 | include/coff/pe.h sets AOUTSZ == sizeof(PEAOUTHDR)) */ | |
2842 | char buff[AOUTSZ]; | |
9783e04a | 2843 | coff_swap_aouthdr_out (abfd, (PTR) & internal_a, (PTR) & buff); |
791a3db4 ILT |
2844 | if (bfd_write ((PTR) & buff, 1, AOUTSZ, abfd) != AOUTSZ) |
2845 | return false; | |
e98e6ec1 | 2846 | } |
dd984644 ILT |
2847 | #ifdef RS6000COFF_C |
2848 | else | |
2849 | { | |
2850 | AOUTHDR buff; | |
867d923d ILT |
2851 | size_t size; |
2852 | ||
dd984644 ILT |
2853 | /* XCOFF seems to always write at least a small a.out header. */ |
2854 | coff_swap_aouthdr_out (abfd, (PTR) &internal_a, (PTR) &buff); | |
867d923d ILT |
2855 | if (xcoff_data (abfd)->full_aouthdr) |
2856 | size = AOUTSZ; | |
2857 | else | |
2858 | size = SMALL_AOUTSZ; | |
2859 | if (bfd_write ((PTR) &buff, 1, size, abfd) != size) | |
dd984644 ILT |
2860 | return false; |
2861 | } | |
2862 | #endif | |
89665c85 | 2863 | |
0f268757 | 2864 | return true; |
6f715d66 SC |
2865 | } |
2866 | ||
9783e04a | 2867 | static boolean |
57a1867e DM |
2868 | coff_set_section_contents (abfd, section, location, offset, count) |
2869 | bfd * abfd; | |
2870 | sec_ptr section; | |
2871 | PTR location; | |
2872 | file_ptr offset; | |
2873 | bfd_size_type count; | |
0f268757 | 2874 | { |
9783e04a DM |
2875 | if (abfd->output_has_begun == false) /* set by bfd.c handler */ |
2876 | coff_compute_section_file_positions (abfd); | |
cbdc7909 | 2877 | |
075caafd | 2878 | #ifdef _LIB |
5eb83ede ILT |
2879 | |
2880 | /* The physical address field of a .lib section is used to hold the | |
2881 | number of shared libraries in the section. This code counts the | |
2882 | number of sections being written, and increments the lma field | |
2883 | with the number. | |
2884 | ||
2885 | I have found no documentation on the contents of this section. | |
2886 | Experimentation indicates that the section contains zero or more | |
2887 | records, each of which has the following structure: | |
2888 | ||
2889 | - a (four byte) word holding the length of this record, in words, | |
2890 | - a word that always seems to be set to "2", | |
2891 | - the path to a shared library, null-terminated and then padded | |
2892 | to a whole word boundary. | |
2893 | ||
2894 | bfd_assert calls have been added to alert if an attempt is made | |
2895 | to write a section which doesn't follow these assumptions. The | |
2896 | code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe | |
2897 | <robertl@arnet.com> (Thanks!). | |
2898 | ||
2899 | Gvran Uddeborg <gvran@uddeborg.pp.se> */ | |
2900 | ||
2901 | if (strcmp (section->name, _LIB) == 0) | |
2902 | { | |
2903 | bfd_byte *rec, *recend; | |
2904 | ||
2905 | rec = (bfd_byte *) location; | |
2906 | recend = rec + count; | |
2907 | while (rec < recend) | |
2908 | { | |
5eb83ede | 2909 | ++section->lma; |
5a4d8c40 | 2910 | rec += bfd_get_32 (abfd, rec) * 4; |
5eb83ede ILT |
2911 | } |
2912 | ||
2913 | BFD_ASSERT (rec == recend); | |
2914 | } | |
2915 | ||
075caafd | 2916 | #endif |
0f268757 | 2917 | |
9783e04a DM |
2918 | /* Don't write out bss sections - one way to do this is to |
2919 | see if the filepos has not been set. */ | |
2920 | if (section->filepos == 0) | |
2921 | return true; | |
55c95b04 | 2922 | |
791a3db4 ILT |
2923 | if (bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET) != 0) |
2924 | return false; | |
7a8b18b6 | 2925 | |
9783e04a DM |
2926 | if (count != 0) |
2927 | { | |
2928 | return (bfd_write (location, 1, count, abfd) == count) ? true : false; | |
075caafd | 2929 | } |
9783e04a | 2930 | return true; |
075caafd ILT |
2931 | } |
2932 | #if 0 | |
9783e04a DM |
2933 | static boolean |
2934 | coff_close_and_cleanup (abfd) | |
2935 | bfd *abfd; | |
0f268757 | 2936 | { |
9783e04a DM |
2937 | if (!bfd_read_p (abfd)) |
2938 | switch (abfd->format) | |
2939 | { | |
2940 | case bfd_archive: | |
2941 | if (!_bfd_write_archive_contents (abfd)) | |
2942 | return false; | |
2943 | break; | |
2944 | case bfd_object: | |
2945 | if (!coff_write_object_contents (abfd)) | |
2946 | return false; | |
2947 | break; | |
2948 | default: | |
57a1867e | 2949 | bfd_set_error (bfd_error_invalid_operation); |
075caafd | 2950 | return false; |
9783e04a | 2951 | } |
075caafd ILT |
2952 | |
2953 | /* We depend on bfd_close to free all the memory on the obstack. */ | |
2954 | /* FIXME if bfd_release is not using obstacks! */ | |
2955 | return true; | |
0f268757 SC |
2956 | } |
2957 | ||
075caafd ILT |
2958 | #endif |
2959 | ||
2960 | static PTR | |
9783e04a DM |
2961 | buy_and_read (abfd, where, seek_direction, size) |
2962 | bfd *abfd; | |
2963 | file_ptr where; | |
2964 | int seek_direction; | |
2965 | size_t size; | |
075caafd | 2966 | { |
9783e04a DM |
2967 | PTR area = (PTR) bfd_alloc (abfd, size); |
2968 | if (!area) | |
a9713b91 | 2969 | return (NULL); |
791a3db4 ILT |
2970 | if (bfd_seek (abfd, where, seek_direction) != 0 |
2971 | || bfd_read (area, 1, size, abfd) != size) | |
2972 | return (NULL); | |
9783e04a | 2973 | return (area); |
075caafd | 2974 | } /* buy_and_read() */ |
0f268757 | 2975 | |
9fda1a39 | 2976 | /* |
9783e04a | 2977 | SUBSUBSECTION |
c188b0be | 2978 | Reading linenumbers |
9fda1a39 | 2979 | |
9fda1a39 SC |
2980 | Creating the linenumber table is done by reading in the entire |
2981 | coff linenumber table, and creating another table for internal use. | |
6f715d66 | 2982 | |
c188b0be | 2983 | A coff linenumber table is structured so that each function |
9fda1a39 SC |
2984 | is marked as having a line number of 0. Each line within the |
2985 | function is an offset from the first line in the function. The | |
2986 | base of the line number information for the table is stored in | |
9783e04a | 2987 | the symbol associated with the function. |
6f715d66 | 2988 | |
9fda1a39 SC |
2989 | The information is copied from the external to the internal |
2990 | table, and each symbol which marks a function is marked by | |
2991 | pointing its... | |
6f715d66 | 2992 | |
9fda1a39 | 2993 | How does this work ? |
6f715d66 SC |
2994 | |
2995 | */ | |
0f268757 SC |
2996 | |
2997 | static boolean | |
9783e04a | 2998 | coff_slurp_line_table (abfd, asect) |
ab31ae53 KR |
2999 | bfd *abfd; |
3000 | asection *asect; | |
3001 | { | |
9783e04a | 3002 | LINENO *native_lineno; |
ab31ae53 KR |
3003 | alent *lineno_cache; |
3004 | ||
9783e04a | 3005 | BFD_ASSERT (asect->lineno == (alent *) NULL); |
ab31ae53 | 3006 | |
9783e04a DM |
3007 | native_lineno = (LINENO *) buy_and_read (abfd, |
3008 | asect->line_filepos, | |
3009 | SEEK_SET, | |
3010 | (size_t) (LINESZ * | |
3011 | asect->lineno_count)); | |
ab31ae53 | 3012 | lineno_cache = |
9783e04a | 3013 | (alent *) bfd_alloc (abfd, (size_t) ((asect->lineno_count + 1) * sizeof (alent))); |
ab31ae53 | 3014 | if (lineno_cache == NULL) |
a9713b91 | 3015 | return false; |
ab31ae53 KR |
3016 | else |
3017 | { | |
9783e04a DM |
3018 | unsigned int counter = 0; |
3019 | alent *cache_ptr = lineno_cache; | |
3020 | LINENO *src = native_lineno; | |
cbdc7909 | 3021 | |
ab31ae53 KR |
3022 | while (counter < asect->lineno_count) |
3023 | { | |
3024 | struct internal_lineno dst; | |
9783e04a | 3025 | coff_swap_lineno_in (abfd, src, &dst); |
ab31ae53 KR |
3026 | cache_ptr->line_number = dst.l_lnno; |
3027 | ||
3028 | if (cache_ptr->line_number == 0) | |
3029 | { | |
3030 | coff_symbol_type *sym = | |
9783e04a DM |
3031 | (coff_symbol_type *) (dst.l_addr.l_symndx |
3032 | + obj_raw_syments (abfd))->u.syment._n._n_n._n_zeroes; | |
ab31ae53 | 3033 | cache_ptr->u.sym = (asymbol *) sym; |
49488f2b ILT |
3034 | if (sym->lineno != NULL) |
3035 | { | |
3036 | (*_bfd_error_handler) | |
3037 | ("%s: warning: duplicate line number information for `%s'", | |
3038 | bfd_get_filename (abfd), | |
3039 | bfd_asymbol_name (&sym->symbol)); | |
3040 | } | |
ab31ae53 KR |
3041 | sym->lineno = cache_ptr; |
3042 | } | |
3043 | else | |
3044 | { | |
3045 | cache_ptr->u.offset = dst.l_addr.l_paddr | |
9783e04a DM |
3046 | - bfd_section_vma (abfd, asect); |
3047 | } /* If no linenumber expect a symbol index */ | |
ab31ae53 KR |
3048 | |
3049 | cache_ptr++; | |
3050 | src++; | |
3051 | counter++; | |
0f268757 | 3052 | } |
0f268757 | 3053 | cache_ptr->line_number = 0; |
cbdc7909 | 3054 | |
0f268757 | 3055 | } |
ab31ae53 KR |
3056 | asect->lineno = lineno_cache; |
3057 | /* FIXME, free native_lineno here, or use alloca or something. */ | |
3058 | return true; | |
3059 | } | |
0f268757 | 3060 | |
ab31ae53 | 3061 | static boolean |
57a1867e DM |
3062 | coff_slurp_symbol_table (abfd) |
3063 | bfd * abfd; | |
6f715d66 | 3064 | { |
9783e04a | 3065 | combined_entry_type *native_symbols; |
6f715d66 | 3066 | coff_symbol_type *cached_area; |
9783e04a | 3067 | unsigned int *table_ptr; |
cbdc7909 | 3068 | |
9783e04a | 3069 | unsigned int number_of_symbols = 0; |
89665c85 | 3070 | |
9783e04a | 3071 | if (obj_symbols (abfd)) |
6f715d66 | 3072 | return true; |
cbdc7909 | 3073 | |
6f715d66 | 3074 | /* Read in the symbol table */ |
9783e04a DM |
3075 | if ((native_symbols = coff_get_normalized_symtab (abfd)) == NULL) |
3076 | { | |
3077 | return (false); | |
3078 | } /* on error */ | |
cbdc7909 | 3079 | |
6f715d66 | 3080 | /* Allocate enough room for all the symbols in cached form */ |
69645d10 ILT |
3081 | cached_area = ((coff_symbol_type *) |
3082 | bfd_alloc (abfd, | |
3083 | (obj_raw_syment_count (abfd) | |
3084 | * sizeof (coff_symbol_type)))); | |
cbdc7909 | 3085 | |
9783e04a | 3086 | if (cached_area == NULL) |
a9713b91 | 3087 | return false; |
69645d10 ILT |
3088 | table_ptr = ((unsigned int *) |
3089 | bfd_alloc (abfd, | |
3090 | (obj_raw_syment_count (abfd) | |
3091 | * sizeof (unsigned int)))); | |
cbdc7909 | 3092 | |
9783e04a | 3093 | if (table_ptr == NULL) |
a9713b91 | 3094 | return false; |
9783e04a DM |
3095 | else |
3096 | { | |
3097 | coff_symbol_type *dst = cached_area; | |
69645d10 | 3098 | unsigned int last_native_index = obj_raw_syment_count (abfd); |
9783e04a DM |
3099 | unsigned int this_index = 0; |
3100 | while (this_index < last_native_index) | |
3101 | { | |
3102 | combined_entry_type *src = native_symbols + this_index; | |
3103 | table_ptr[this_index] = number_of_symbols; | |
3104 | dst->symbol.the_bfd = abfd; | |
3105 | ||
3106 | dst->symbol.name = (char *) (src->u.syment._n._n_n._n_offset); | |
3107 | /* We use the native name field to point to the cached field. */ | |
3108 | src->u.syment._n._n_n._n_zeroes = (long) dst; | |
3109 | dst->symbol.section = coff_section_from_bfd_index (abfd, | |
3110 | src->u.syment.n_scnum); | |
3111 | dst->symbol.flags = 0; | |
3112 | dst->done_lineno = false; | |
3113 | ||
3114 | switch (src->u.syment.n_sclass) | |
3115 | { | |
0f268757 | 3116 | #ifdef I960 |
9783e04a | 3117 | case C_LEAFEXT: |
0f268757 | 3118 | #if 0 |
9783e04a DM |
3119 | dst->symbol.value = src->u.syment.n_value - dst->symbol.section->vma; |
3120 | dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL; | |
c7e76b5e | 3121 | dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION; |
0f268757 | 3122 | #endif |
9783e04a | 3123 | /* Fall through to next case */ |
cbdc7909 | 3124 | |
0f268757 | 3125 | #endif |
cbdc7909 | 3126 | |
9783e04a | 3127 | case C_EXT: |
cbdc7909 | 3128 | #ifdef RS6000COFF_C |
9783e04a | 3129 | case C_HIDEXT: |
89665c85 SC |
3130 | #endif |
3131 | #ifdef COFF_WITH_PE | |
3132 | /* PE uses storage class 0x68 to denote a section symbol */ | |
3133 | case C_SECTION: | |
a418e05d ILT |
3134 | /* PE uses storage class 0x67 for a weak external symbol. */ |
3135 | case C_NT_WEAK: | |
9783e04a DM |
3136 | #endif |
3137 | if ((src->u.syment.n_scnum) == 0) | |
3138 | { | |
3139 | if ((src->u.syment.n_value) == 0) | |
3140 | { | |
b5b056fc | 3141 | dst->symbol.section = bfd_und_section_ptr; |
9783e04a DM |
3142 | dst->symbol.value = 0; |
3143 | } | |
3144 | else | |
3145 | { | |
b5b056fc | 3146 | dst->symbol.section = bfd_com_section_ptr; |
9783e04a DM |
3147 | dst->symbol.value = (src->u.syment.n_value); |
3148 | } | |
3149 | } | |
3150 | else | |
3151 | { | |
e7cac9de ILT |
3152 | /* Base the value as an index from the base of the |
3153 | section */ | |
e98e6ec1 | 3154 | |
9783e04a | 3155 | dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL; |
e7cac9de ILT |
3156 | dst->symbol.value = (src->u.syment.n_value |
3157 | - dst->symbol.section->vma); | |
e98e6ec1 | 3158 | |
9783e04a DM |
3159 | if (ISFCN ((src->u.syment.n_type))) |
3160 | { | |
e7cac9de ILT |
3161 | /* A function ext does not go at the end of a |
3162 | file. */ | |
c7e76b5e | 3163 | dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION; |
9783e04a DM |
3164 | } |
3165 | } | |
85e0c721 | 3166 | |
9783e04a | 3167 | #ifdef RS6000COFF_C |
e7cac9de ILT |
3168 | /* A C_HIDEXT symbol is not global. */ |
3169 | if (src->u.syment.n_sclass == C_HIDEXT) | |
3170 | dst->symbol.flags = BSF_LOCAL; | |
5f710a3a | 3171 | /* A symbol with a csect entry should not go at the end. */ |
3f2c5b2d | 3172 | if (src->u.syment.n_numaux > 0) |
5f710a3a | 3173 | dst->symbol.flags |= BSF_NOT_AT_END; |
9783e04a DM |
3174 | #endif |
3175 | ||
a418e05d ILT |
3176 | #ifdef COFF_WITH_PE |
3177 | if (src->u.syment.n_sclass == C_NT_WEAK) | |
3178 | dst->symbol.flags = BSF_WEAK; | |
3179 | #endif | |
3180 | ||
9783e04a DM |
3181 | break; |
3182 | ||
3183 | case C_STAT: /* static */ | |
0f268757 | 3184 | #ifdef I960 |
9783e04a DM |
3185 | case C_LEAFSTAT: /* static leaf procedure */ |
3186 | #endif | |
3187 | case C_LABEL: /* label */ | |
3188 | if (src->u.syment.n_scnum == -2) | |
3189 | dst->symbol.flags = BSF_DEBUGGING; | |
3190 | else | |
3191 | dst->symbol.flags = BSF_LOCAL; | |
5a28331f ILT |
3192 | |
3193 | /* Base the value as an index from the base of the | |
3194 | section, if there is one. */ | |
9783e04a | 3195 | if (dst->symbol.section) |
5a28331f ILT |
3196 | dst->symbol.value = (src->u.syment.n_value |
3197 | - dst->symbol.section->vma); | |
9783e04a | 3198 | else |
5a28331f | 3199 | dst->symbol.value = src->u.syment.n_value; |
9783e04a DM |
3200 | break; |
3201 | ||
3202 | case C_MOS: /* member of structure */ | |
3203 | case C_EOS: /* end of structure */ | |
3204 | #ifdef NOTDEF /* C_AUTOARG has the same value */ | |
41f50af0 | 3205 | #ifdef C_GLBLREG |
9783e04a | 3206 | case C_GLBLREG: /* A29k-specific storage class */ |
41f50af0 SC |
3207 | #endif |
3208 | #endif | |
9783e04a DM |
3209 | case C_REGPARM: /* register parameter */ |
3210 | case C_REG: /* register variable */ | |
0f268757 | 3211 | #ifdef C_AUTOARG |
9783e04a DM |
3212 | case C_AUTOARG: /* 960-specific storage class */ |
3213 | #endif | |
3214 | case C_TPDEF: /* type definition */ | |
3215 | case C_ARG: | |
3216 | case C_AUTO: /* automatic variable */ | |
3217 | case C_FIELD: /* bit field */ | |
3218 | case C_ENTAG: /* enumeration tag */ | |
3219 | case C_MOE: /* member of enumeration */ | |
3220 | case C_MOU: /* member of union */ | |
3221 | case C_UNTAG: /* union tag */ | |
3222 | dst->symbol.flags = BSF_DEBUGGING; | |
3223 | dst->symbol.value = (src->u.syment.n_value); | |
3224 | break; | |
3225 | ||
3226 | case C_FILE: /* file name */ | |
3227 | case C_STRTAG: /* structure tag */ | |
cbdc7909 | 3228 | #ifdef RS6000COFF_C |
9783e04a DM |
3229 | case C_GSYM: |
3230 | case C_LSYM: | |
3231 | case C_PSYM: | |
3232 | case C_RSYM: | |
3233 | case C_RPSYM: | |
3234 | case C_STSYM: | |
2bd0aeb9 ILT |
3235 | case C_BCOMM: |
3236 | case C_ECOMM: | |
9783e04a DM |
3237 | case C_DECL: |
3238 | case C_ENTRY: | |
3239 | case C_FUN: | |
3240 | case C_ESTAT: | |
3241 | #endif | |
3242 | dst->symbol.flags = BSF_DEBUGGING; | |
3243 | dst->symbol.value = (src->u.syment.n_value); | |
3244 | break; | |
cbdc7909 | 3245 | |
9783e04a | 3246 | #ifdef RS6000COFF_C |
49488f2b ILT |
3247 | case C_BINCL: /* beginning of include file */ |
3248 | case C_EINCL: /* ending of include file */ | |
3249 | /* The value is actually a pointer into the line numbers | |
3250 | of the file. We locate the line number entry, and | |
3251 | set the section to the section which contains it, and | |
3252 | the value to the index in that section. */ | |
3253 | { | |
3254 | asection *sec; | |
3255 | ||
3256 | dst->symbol.flags = BSF_DEBUGGING; | |
3257 | for (sec = abfd->sections; sec != NULL; sec = sec->next) | |
dd984644 ILT |
3258 | if (sec->line_filepos <= (file_ptr) src->u.syment.n_value |
3259 | && ((file_ptr) (sec->line_filepos | |
3260 | + sec->lineno_count * LINESZ) | |
3261 | > (file_ptr) src->u.syment.n_value)) | |
49488f2b ILT |
3262 | break; |
3263 | if (sec == NULL) | |
3264 | dst->symbol.value = 0; | |
3265 | else | |
3266 | { | |
3267 | dst->symbol.section = sec; | |
3268 | dst->symbol.value = ((src->u.syment.n_value | |
3269 | - sec->line_filepos) | |
3270 | / LINESZ); | |
3271 | src->fix_line = 1; | |
3272 | } | |
3273 | } | |
3274 | break; | |
3275 | ||
9783e04a DM |
3276 | case C_BSTAT: |
3277 | dst->symbol.flags = BSF_DEBUGGING; | |
9783e04a | 3278 | |
3f2c5b2d ILT |
3279 | /* The value is actually a symbol index. Save a pointer |
3280 | to the symbol instead of the index. FIXME: This | |
3281 | should use a union. */ | |
9783e04a DM |
3282 | src->u.syment.n_value = |
3283 | (long) (native_symbols + src->u.syment.n_value); | |
49488f2b | 3284 | dst->symbol.value = src->u.syment.n_value; |
9783e04a DM |
3285 | src->fix_value = 1; |
3286 | break; | |
3287 | #endif | |
3288 | ||
3289 | case C_BLOCK: /* ".bb" or ".eb" */ | |
5a28331f | 3290 | case C_FCN: /* ".bf" or ".ef" */ |
9783e04a DM |
3291 | case C_EFCN: /* physical end of function */ |
3292 | dst->symbol.flags = BSF_LOCAL; | |
5a28331f ILT |
3293 | /* Base the value as an index from the base of the |
3294 | section. */ | |
3295 | dst->symbol.value = (src->u.syment.n_value | |
3296 | - dst->symbol.section->vma); | |
9783e04a DM |
3297 | break; |
3298 | ||
3299 | case C_NULL: | |
3300 | case C_EXTDEF: /* external definition */ | |
3301 | case C_ULABEL: /* undefined label */ | |
3302 | case C_USTATIC: /* undefined static */ | |
89665c85 SC |
3303 | #ifndef COFF_WITH_PE |
3304 | /* C_LINE in regular coff is 0x68. NT has taken over this storage | |
3305 | class to represent a section symbol */ | |
9783e04a | 3306 | case C_LINE: /* line # reformatted as symbol table entry */ |
a418e05d | 3307 | /* NT uses 0x67 for a weak symbol, not C_ALIAS. */ |
9783e04a | 3308 | case C_ALIAS: /* duplicate tag */ |
a418e05d | 3309 | #endif |
9783e04a DM |
3310 | case C_HIDDEN: /* ext symbol in dmert public lib */ |
3311 | default: | |
7a7fbffb ILT |
3312 | (*_bfd_error_handler) |
3313 | ("%s: Unrecognized storage class %d for %s symbol `%s'", | |
3314 | bfd_get_filename (abfd), src->u.syment.n_sclass, | |
3315 | dst->symbol.section->name, dst->symbol.name); | |
9783e04a DM |
3316 | dst->symbol.flags = BSF_DEBUGGING; |
3317 | dst->symbol.value = (src->u.syment.n_value); | |
3318 | break; | |
3319 | } | |
cbdc7909 | 3320 | |
6590a8c9 | 3321 | /* BFD_ASSERT(dst->symbol.flags != 0);*/ |
cbdc7909 | 3322 | |
9783e04a | 3323 | dst->native = src; |
cbdc7909 | 3324 | |
f135c692 | 3325 | dst->symbol.udata.i = 0; |
9783e04a DM |
3326 | dst->lineno = (alent *) NULL; |
3327 | this_index += (src->u.syment.n_numaux) + 1; | |
3328 | dst++; | |
3329 | number_of_symbols++; | |
3330 | } /* walk the native symtab */ | |
3331 | } /* bfdize the native symtab */ | |
cbdc7909 | 3332 | |
9783e04a DM |
3333 | obj_symbols (abfd) = cached_area; |
3334 | obj_raw_syments (abfd) = native_symbols; | |
cbdc7909 | 3335 | |
9783e04a DM |
3336 | bfd_get_symcount (abfd) = number_of_symbols; |
3337 | obj_convert (abfd) = table_ptr; | |
6f715d66 | 3338 | /* Slurp the line tables for each section too */ |
9783e04a DM |
3339 | { |
3340 | asection *p; | |
3341 | p = abfd->sections; | |
3342 | while (p) | |
3343 | { | |
3344 | coff_slurp_line_table (abfd, p); | |
6f715d66 | 3345 | p = p->next; |
0f268757 | 3346 | } |
9783e04a | 3347 | } |
6f715d66 SC |
3348 | return true; |
3349 | } /* coff_slurp_symbol_table() */ | |
0f268757 | 3350 | |
69645d10 ILT |
3351 | /* Check whether a symbol is globally visible. This is used by the |
3352 | COFF backend linker code in cofflink.c, since a couple of targets | |
3353 | have globally visible symbols which are not class C_EXT. This | |
3354 | function need not handle the case of n_class == C_EXT. */ | |
3355 | ||
3356 | #undef OTHER_GLOBAL_CLASS | |
3357 | ||
3358 | #ifdef I960 | |
3359 | #define OTHER_GLOBAL_CLASS C_LEAFEXT | |
3360 | #endif | |
3361 | ||
89665c85 SC |
3362 | #ifdef COFF_WITH_PE |
3363 | #define OTHER_GLOBAL_CLASS C_SECTION | |
3364 | #endif | |
3365 | ||
69645d10 ILT |
3366 | #ifdef OTHER_GLOBAL_CLASS |
3367 | ||
3368 | static boolean | |
3369 | coff_sym_is_global (abfd, syment) | |
3370 | bfd *abfd; | |
3371 | struct internal_syment *syment; | |
3372 | { | |
3373 | if (syment->n_sclass == OTHER_GLOBAL_CLASS) | |
3374 | return true; | |
3375 | return false; | |
3376 | } | |
3377 | ||
3378 | #undef OTHER_GLOBAL_CLASS | |
3379 | ||
3380 | #else /* ! defined (OTHER_GLOBAL_CLASS) */ | |
3381 | ||
3382 | /* sym_is_global should not be defined if it has nothing to do. */ | |
3383 | ||
3384 | #define coff_sym_is_global 0 | |
3385 | ||
3386 | #endif /* ! defined (OTHER_GLOBAL_CLASS) */ | |
3387 | ||
9fda1a39 | 3388 | /* |
9783e04a | 3389 | SUBSUBSECTION |
c188b0be | 3390 | Reading relocations |
9fda1a39 | 3391 | |
9fda1a39 SC |
3392 | Coff relocations are easily transformed into the internal BFD form |
3393 | (@code{arelent}). | |
3394 | ||
3395 | Reading a coff relocation table is done in the following stages: | |
3396 | ||
c188b0be | 3397 | o Read the entire coff relocation table into memory. |
9fda1a39 | 3398 | |
c188b0be | 3399 | o Process each relocation in turn; first swap it from the |
9fda1a39 SC |
3400 | external to the internal form. |
3401 | ||
c188b0be DM |
3402 | o Turn the symbol referenced in the relocation's symbol index |
3403 | into a pointer into the canonical symbol table. | |
3404 | This table is the same as the one returned by a call to | |
3405 | @code{bfd_canonicalize_symtab}. The back end will call that | |
9fda1a39 SC |
3406 | routine and save the result if a canonicalization hasn't been done. |
3407 | ||
3408 | o The reloc index is turned into a pointer to a howto | |
3409 | structure, in a back end specific way. For instance, the 386 | |
3410 | and 960 use the @code{r_type} to directly produce an index | |
3411 | into a howto table vector; the 88k subtracts a number from the | |
3412 | @code{r_type} field and creates an addend field. | |
3413 | ||
3414 | ||
6f715d66 SC |
3415 | */ |
3416 | ||
3b4f1a5d | 3417 | #ifndef CALC_ADDEND |
492d52cc ILT |
3418 | #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \ |
3419 | { \ | |
3420 | coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \ | |
3421 | if (ptr && bfd_asymbol_bfd (ptr) != abfd) \ | |
3422 | coffsym = (obj_symbols (abfd) \ | |
3423 | + (cache_ptr->sym_ptr_ptr - symbols)); \ | |
3424 | else if (ptr) \ | |
3425 | coffsym = coff_symbol_from (abfd, ptr); \ | |
3426 | if (coffsym != (coff_symbol_type *) NULL \ | |
3427 | && coffsym->native->u.syment.n_scnum == 0) \ | |
3428 | cache_ptr->addend = 0; \ | |
3429 | else if (ptr && bfd_asymbol_bfd (ptr) == abfd \ | |
3430 | && ptr->section != (asection *) NULL) \ | |
3431 | cache_ptr->addend = - (ptr->section->vma + ptr->value); \ | |
3432 | else \ | |
3433 | cache_ptr->addend = 0; \ | |
3434 | } | |
3b4f1a5d SC |
3435 | #endif |
3436 | ||
9783e04a | 3437 | static boolean |
57a1867e DM |
3438 | coff_slurp_reloc_table (abfd, asect, symbols) |
3439 | bfd * abfd; | |
3440 | sec_ptr asect; | |
3441 | asymbol ** symbols; | |
85e0c721 | 3442 | { |
9783e04a DM |
3443 | RELOC *native_relocs; |
3444 | arelent *reloc_cache; | |
3445 | arelent *cache_ptr; | |
3b4f1a5d SC |
3446 | |
3447 | unsigned int idx; | |
9783e04a | 3448 | |
3b4f1a5d | 3449 | if (asect->relocation) |
9783e04a | 3450 | return true; |
3b4f1a5d | 3451 | if (asect->reloc_count == 0) |
9783e04a | 3452 | return true; |
3b4f1a5d | 3453 | if (asect->flags & SEC_CONSTRUCTOR) |
9783e04a DM |
3454 | return true; |
3455 | if (!coff_slurp_symbol_table (abfd)) | |
3456 | return false; | |
3b4f1a5d | 3457 | native_relocs = |
9783e04a DM |
3458 | (RELOC *) buy_and_read (abfd, |
3459 | asect->rel_filepos, | |
3460 | SEEK_SET, | |
3461 | (size_t) (RELSZ * | |
3462 | asect->reloc_count)); | |
3b4f1a5d | 3463 | reloc_cache = (arelent *) |
9783e04a | 3464 | bfd_alloc (abfd, (size_t) (asect->reloc_count * sizeof (arelent))); |
3b4f1a5d | 3465 | |
9783e04a | 3466 | if (reloc_cache == NULL) |
a9713b91 | 3467 | return false; |
3b4f1a5d | 3468 | |
9783e04a DM |
3469 | |
3470 | for (idx = 0; idx < asect->reloc_count; idx++) | |
3471 | { | |
616ebcfd | 3472 | #ifdef RELOC_PROCESSING |
3b4f1a5d | 3473 | struct internal_reloc dst; |
9783e04a | 3474 | struct external_reloc *src; |
3b4f1a5d SC |
3475 | |
3476 | cache_ptr = reloc_cache + idx; | |
3477 | src = native_relocs + idx; | |
69645d10 | 3478 | coff_swap_reloc_in (abfd, src, &dst); |
3b4f1a5d | 3479 | |
9783e04a | 3480 | RELOC_PROCESSING (cache_ptr, &dst, symbols, abfd, asect); |
9898b929 | 3481 | #else |
616ebcfd | 3482 | struct internal_reloc dst; |
9783e04a DM |
3483 | asymbol *ptr; |
3484 | struct external_reloc *src; | |
616ebcfd SC |
3485 | |
3486 | cache_ptr = reloc_cache + idx; | |
3487 | src = native_relocs + idx; | |
3488 | ||
69645d10 | 3489 | coff_swap_reloc_in (abfd, src, &dst); |
616ebcfd | 3490 | |
9898b929 JG |
3491 | |
3492 | cache_ptr->address = dst.r_vaddr; | |
3493 | ||
9783e04a | 3494 | if (dst.r_symndx != -1) |
8070f29d KR |
3495 | { |
3496 | /* @@ Should never be greater than count of symbols! */ | |
3497 | if (dst.r_symndx >= obj_conv_table_size (abfd)) | |
3498 | abort (); | |
9783e04a | 3499 | cache_ptr->sym_ptr_ptr = symbols + obj_convert (abfd)[dst.r_symndx]; |
9898b929 | 3500 | ptr = *(cache_ptr->sym_ptr_ptr); |
8070f29d | 3501 | } |
9783e04a | 3502 | else |
8070f29d | 3503 | { |
b5b056fc | 3504 | cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; |
8070f29d KR |
3505 | ptr = 0; |
3506 | } | |
85e0c721 | 3507 | |
cd83759c KR |
3508 | /* The symbols definitions that we have read in have been |
3509 | relocated as if their sections started at 0. But the offsets | |
3510 | refering to the symbols in the raw data have not been | |
3511 | modified, so we have to have a negative addend to compensate. | |
3512 | ||
3513 | Note that symbols which used to be common must be left alone */ | |
cbdc7909 | 3514 | |
3b4f1a5d | 3515 | /* Calculate any reloc addend by looking at the symbol */ |
9783e04a | 3516 | CALC_ADDEND (abfd, ptr, dst, cache_ptr); |
cbdc7909 | 3517 | |
3b4f1a5d | 3518 | cache_ptr->address -= asect->vma; |
e98e6ec1 | 3519 | /* !! cache_ptr->section = (asection *) NULL;*/ |
20fdc627 | 3520 | |
3b4f1a5d | 3521 | /* Fill in the cache_ptr->howto field from dst.r_type */ |
9783e04a | 3522 | RTYPE2HOWTO (cache_ptr, &dst); |
9898b929 JG |
3523 | #endif |
3524 | ||
9783e04a | 3525 | } |
cbdc7909 | 3526 | |
3b4f1a5d SC |
3527 | asect->relocation = reloc_cache; |
3528 | return true; | |
85e0c721 | 3529 | } |
0f268757 | 3530 | |
f135c692 ILT |
3531 | #ifndef coff_rtype_to_howto |
3532 | #ifdef RTYPE2HOWTO | |
3533 | ||
3534 | /* Get the howto structure for a reloc. This is only used if the file | |
3535 | including this one defines coff_relocate_section to be | |
3536 | _bfd_coff_generic_relocate_section, so it is OK if it does not | |
3537 | always work. It is the responsibility of the including file to | |
3538 | make sure it is reasonable if it is needed. */ | |
3539 | ||
3540 | static reloc_howto_type *coff_rtype_to_howto | |
3541 | PARAMS ((bfd *, asection *, struct internal_reloc *, | |
3542 | struct coff_link_hash_entry *, struct internal_syment *, | |
3543 | bfd_vma *)); | |
3544 | ||
3545 | /*ARGSUSED*/ | |
3546 | static reloc_howto_type * | |
3547 | coff_rtype_to_howto (abfd, sec, rel, h, sym, addendp) | |
3548 | bfd *abfd; | |
3549 | asection *sec; | |
3550 | struct internal_reloc *rel; | |
3551 | struct coff_link_hash_entry *h; | |
3552 | struct internal_syment *sym; | |
3553 | bfd_vma *addendp; | |
3554 | { | |
3555 | arelent genrel; | |
3556 | ||
3557 | RTYPE2HOWTO (&genrel, rel); | |
3558 | return genrel.howto; | |
3559 | } | |
3560 | ||
3561 | #else /* ! defined (RTYPE2HOWTO) */ | |
3562 | ||
3563 | #define coff_rtype_to_howto NULL | |
3564 | ||
3565 | #endif /* ! defined (RTYPE2HOWTO) */ | |
3566 | #endif /* ! defined (coff_rtype_to_howto) */ | |
0f268757 | 3567 | |
cd83759c | 3568 | /* This is stupid. This function should be a boolean predicate. */ |
326e32d7 | 3569 | static long |
57a1867e DM |
3570 | coff_canonicalize_reloc (abfd, section, relptr, symbols) |
3571 | bfd * abfd; | |
3572 | sec_ptr section; | |
3573 | arelent ** relptr; | |
3574 | asymbol ** symbols; | |
85e0c721 | 3575 | { |
9783e04a DM |
3576 | arelent *tblptr = section->relocation; |
3577 | unsigned int count = 0; | |
cbdc7909 | 3578 | |
cbdc7909 | 3579 | |
9783e04a DM |
3580 | if (section->flags & SEC_CONSTRUCTOR) |
3581 | { | |
3582 | /* this section has relocs made up by us, they are not in the | |
e98e6ec1 SC |
3583 | file, so take them out of their chain and place them into |
3584 | the data area provided */ | |
9783e04a DM |
3585 | arelent_chain *chain = section->constructor_chain; |
3586 | for (count = 0; count < section->reloc_count; count++) | |
3587 | { | |
3588 | *relptr++ = &chain->relent; | |
3589 | chain = chain->next; | |
3590 | } | |
e98e6ec1 | 3591 | |
9783e04a DM |
3592 | } |
3593 | else | |
3594 | { | |
326e32d7 ILT |
3595 | if (! coff_slurp_reloc_table (abfd, section, symbols)) |
3596 | return -1; | |
85e0c721 | 3597 | |
9783e04a | 3598 | tblptr = section->relocation; |
85e0c721 | 3599 | |
9783e04a DM |
3600 | for (; count++ < section->reloc_count;) |
3601 | *relptr++ = tblptr++; | |
cbdc7909 | 3602 | |
85e0c721 | 3603 | |
9783e04a | 3604 | } |
e98e6ec1 SC |
3605 | *relptr = 0; |
3606 | return section->reloc_count; | |
85e0c721 | 3607 | } |
0f268757 | 3608 | |
0f268757 SC |
3609 | #ifdef GNU960 |
3610 | file_ptr | |
9783e04a DM |
3611 | coff_sym_filepos (abfd) |
3612 | bfd *abfd; | |
3613 | { | |
3614 | return obj_sym_filepos (abfd); | |
3615 | } | |
0f268757 SC |
3616 | #endif |
3617 | ||
fbb61b50 SC |
3618 | #ifndef coff_reloc16_estimate |
3619 | #define coff_reloc16_estimate dummy_reloc16_estimate | |
3620 | ||
56775366 | 3621 | static int |
09a28207 ILT |
3622 | dummy_reloc16_estimate (abfd, input_section, reloc, shrink, link_info) |
3623 | bfd *abfd; | |
fbb61b50 | 3624 | asection *input_section; |
fbb61b50 | 3625 | arelent *reloc; |
56775366 | 3626 | unsigned int shrink; |
330595d0 | 3627 | struct bfd_link_info *link_info; |
fbb61b50 | 3628 | { |
56775366 | 3629 | abort (); |
fbb61b50 SC |
3630 | } |
3631 | ||
3632 | #endif | |
3633 | ||
075caafd | 3634 | #ifndef coff_reloc16_extra_cases |
9e768fa2 JK |
3635 | #define coff_reloc16_extra_cases dummy_reloc16_extra_cases |
3636 | /* This works even if abort is not declared in any header file. */ | |
4d09e8ac | 3637 | static void |
330595d0 ILT |
3638 | dummy_reloc16_extra_cases (abfd, link_info, link_order, reloc, data, src_ptr, |
3639 | dst_ptr) | |
9e768fa2 | 3640 | bfd *abfd; |
330595d0 ILT |
3641 | struct bfd_link_info *link_info; |
3642 | struct bfd_link_order *link_order; | |
9e768fa2 JK |
3643 | arelent *reloc; |
3644 | bfd_byte *data; | |
3645 | unsigned int *src_ptr; | |
3646 | unsigned int *dst_ptr; | |
3647 | { | |
3648 | abort (); | |
3649 | } | |
8ad2a31d | 3650 | #endif |
6590a8c9 | 3651 | |
69645d10 ILT |
3652 | /* If coff_relocate_section is defined, we can use the optimized COFF |
3653 | backend linker. Otherwise we must continue to use the old linker. */ | |
3654 | #ifdef coff_relocate_section | |
f135c692 | 3655 | #ifndef coff_bfd_link_hash_table_create |
69645d10 | 3656 | #define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create |
f135c692 ILT |
3657 | #endif |
3658 | #ifndef coff_bfd_link_add_symbols | |
69645d10 | 3659 | #define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols |
f135c692 ILT |
3660 | #endif |
3661 | #ifndef coff_bfd_final_link | |
69645d10 | 3662 | #define coff_bfd_final_link _bfd_coff_final_link |
f135c692 | 3663 | #endif |
69645d10 ILT |
3664 | #else /* ! defined (coff_relocate_section) */ |
3665 | #define coff_relocate_section NULL | |
39f27966 | 3666 | #ifndef coff_bfd_link_hash_table_create |
69645d10 | 3667 | #define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create |
39f27966 | 3668 | #endif |
57289b5c | 3669 | #ifndef coff_bfd_link_add_symbols |
69645d10 | 3670 | #define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols |
57289b5c | 3671 | #endif |
69645d10 ILT |
3672 | #define coff_bfd_final_link _bfd_generic_final_link |
3673 | #endif /* ! defined (coff_relocate_section) */ | |
89665c85 | 3674 | #define coff_bfd_link_split_section _bfd_generic_link_split_section |
69645d10 | 3675 | |
a208a70f ILT |
3676 | #ifndef coff_start_final_link |
3677 | #define coff_start_final_link NULL | |
3678 | #endif | |
3679 | ||
f135c692 ILT |
3680 | #ifndef coff_adjust_symndx |
3681 | #define coff_adjust_symndx NULL | |
3682 | #endif | |
3683 | ||
d19df9b5 ILT |
3684 | #ifndef coff_link_add_one_symbol |
3685 | #define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol | |
3686 | #endif | |
3687 | ||
9783e04a DM |
3688 | static CONST bfd_coff_backend_data bfd_coff_std_swap_table = |
3689 | { | |
3690 | coff_swap_aux_in, coff_swap_sym_in, coff_swap_lineno_in, | |
3691 | coff_swap_aux_out, coff_swap_sym_out, | |
3692 | coff_swap_lineno_out, coff_swap_reloc_out, | |
3693 | coff_swap_filehdr_out, coff_swap_aouthdr_out, | |
3694 | coff_swap_scnhdr_out, | |
69645d10 | 3695 | FILHSZ, AOUTSZ, SCNHSZ, SYMESZ, AUXESZ, RELSZ, LINESZ, |
075caafd | 3696 | #ifdef COFF_LONG_FILENAMES |
9783e04a | 3697 | true, |
075caafd | 3698 | #else |
9783e04a | 3699 | false, |
07de8e96 | 3700 | #endif |
9783e04a | 3701 | coff_swap_filehdr_in, coff_swap_aouthdr_in, coff_swap_scnhdr_in, |
69645d10 | 3702 | coff_swap_reloc_in, coff_bad_format_hook, coff_set_arch_mach_hook, |
1af85fbb | 3703 | coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook, |
c80cc833 | 3704 | coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook, |
0fc9ada9 | 3705 | coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate, |
69645d10 | 3706 | coff_sym_is_global, coff_compute_section_file_positions, |
a208a70f | 3707 | coff_start_final_link, coff_relocate_section, coff_rtype_to_howto, |
d19df9b5 | 3708 | coff_adjust_symndx, coff_link_add_one_symbol |
075caafd | 3709 | }; |
0f268757 | 3710 | |
6812b607 ILT |
3711 | #define coff_close_and_cleanup _bfd_generic_close_and_cleanup |
3712 | #define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info | |
3713 | #define coff_get_section_contents _bfd_generic_get_section_contents | |
09a28207 | 3714 | |
db344f82 SC |
3715 | #ifndef coff_bfd_copy_private_symbol_data |
3716 | #define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data | |
3717 | #endif | |
3718 | ||
3719 | #ifndef coff_bfd_copy_private_section_data | |
3720 | #define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data | |
3721 | #endif | |
3722 | ||
3723 | #ifndef coff_bfd_copy_private_bfd_data | |
6812b607 | 3724 | #define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data |
db344f82 SC |
3725 | #endif |
3726 | ||
89665c85 SC |
3727 | #define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data |
3728 | #define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags | |
6812b607 | 3729 | |
beee31b1 | 3730 | #ifndef coff_bfd_print_private_bfd_data |
db344f82 | 3731 | #define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data |
beee31b1 SC |
3732 | #endif |
3733 | ||
09a28207 ILT |
3734 | #ifndef coff_bfd_is_local_label |
3735 | #define coff_bfd_is_local_label bfd_generic_is_local_label | |
3736 | #endif | |
e9614321 SC |
3737 | #ifndef coff_read_minisymbols |
3738 | #define coff_read_minisymbols _bfd_generic_read_minisymbols | |
3739 | #endif | |
3740 | #ifndef coff_minisymbol_to_symbol | |
3741 | #define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol | |
3742 | #endif | |
6812b607 ILT |
3743 | |
3744 | /* The reloc lookup routine must be supplied by each individual COFF | |
3745 | backend. */ | |
3746 | #ifndef coff_bfd_reloc_type_lookup | |
3747 | #define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup | |
3748 | #endif | |
3749 | ||
e9614321 | 3750 | #ifndef coff_bfd_get_relocated_section_contents |
6812b607 ILT |
3751 | #define coff_bfd_get_relocated_section_contents \ |
3752 | bfd_generic_get_relocated_section_contents | |
e9614321 SC |
3753 | #endif |
3754 | #ifndef coff_bfd_relax_section | |
6812b607 | 3755 | #define coff_bfd_relax_section bfd_generic_relax_section |
e9614321 | 3756 | #endif |