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6d7c88c3 | 1 | /* Support for the generic parts of most COFF variants, for BFD. |
f135c692 | 2 | Copyright 1990, 91, 92, 93, 94, 1995 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 SC |
270 | . |
271 | . {* The container for the symbol structure as read and translated | |
272 | . from the file. *} | |
273 | . | |
274 | .union { | |
275 | . union internal_auxent auxent; | |
276 | . struct internal_syment syment; | |
277 | . } u; | |
278 | .} combined_entry_type; | |
279 | . | |
280 | . | |
281 | .{* Each canonical asymbol really looks like this: *} | |
282 | . | |
283 | .typedef struct coff_symbol_struct | |
284 | .{ | |
285 | . {* The actual symbol which the rest of BFD works with *} | |
286 | .asymbol symbol; | |
287 | . | |
288 | . {* A pointer to the hidden information for this symbol *} | |
289 | .combined_entry_type *native; | |
290 | . | |
291 | . {* A pointer to the linenumber information for this symbol *} | |
292 | .struct lineno_cache_entry *lineno; | |
293 | . | |
d58b7049 SC |
294 | . {* Have the line numbers been relocated yet ? *} |
295 | .boolean done_lineno; | |
616ebcfd | 296 | .} coff_symbol_type; |
6f715d66 | 297 | |
6f715d66 | 298 | |
0f268757 SC |
299 | */ |
300 | ||
80b2dd82 | 301 | #if defined(COFF_IMAGE_WITH_PE) || (defined(COFF_OBJ_WITH_PE) && defined(PPC)) |
beee31b1 SC |
302 | #include "peicode.h" |
303 | #else | |
304 | #include "coffswap.h" | |
89665c85 SC |
305 | #endif |
306 | ||
0f268757 SC |
307 | \f |
308 | /* void warning(); */ | |
6f715d66 | 309 | |
cbdc7909 JG |
310 | /* |
311 | * Return a word with STYP_* (scnhdr.s_flags) flags set to represent the | |
41f50af0 SC |
312 | * incoming SEC_* flags. The inverse of this function is styp_to_sec_flags(). |
313 | * NOTE: If you add to/change this routine, you should mirror the changes | |
314 | * in styp_to_sec_flags(). | |
315 | */ | |
cbdc7909 | 316 | static long |
fbb61b50 SC |
317 | sec_to_styp_flags (sec_name, sec_flags) |
318 | CONST char *sec_name; | |
319 | flagword sec_flags; | |
41f50af0 | 320 | { |
47cf4997 SC |
321 | long styp_flags = 0; |
322 | ||
9783e04a | 323 | if (!strcmp (sec_name, _TEXT)) |
fbb61b50 SC |
324 | { |
325 | styp_flags = STYP_TEXT; | |
326 | } | |
9783e04a | 327 | else if (!strcmp (sec_name, _DATA)) |
fbb61b50 SC |
328 | { |
329 | styp_flags = STYP_DATA; | |
fbb61b50 | 330 | } |
9783e04a | 331 | else if (!strcmp (sec_name, _BSS)) |
fbb61b50 SC |
332 | { |
333 | styp_flags = STYP_BSS; | |
8c4a1ace | 334 | #ifdef _COMMENT |
9783e04a DM |
335 | } |
336 | else if (!strcmp (sec_name, _COMMENT)) | |
fbb61b50 SC |
337 | { |
338 | styp_flags = STYP_INFO; | |
9783e04a | 339 | #endif /* _COMMENT */ |
b26059aa | 340 | #ifdef _LIB |
fbb61b50 | 341 | } |
9783e04a | 342 | else if (!strcmp (sec_name, _LIB)) |
fbb61b50 SC |
343 | { |
344 | styp_flags = STYP_LIB; | |
9783e04a | 345 | #endif /* _LIB */ |
35d835c4 | 346 | #ifdef _LIT |
fbb61b50 | 347 | } |
35d835c4 | 348 | else if (!strcmp (sec_name, _LIT)) |
fbb61b50 SC |
349 | { |
350 | styp_flags = STYP_LIT; | |
35d835c4 | 351 | #endif /* _LIT */ |
fbb61b50 | 352 | } |
9783e04a | 353 | else if (!strcmp (sec_name, ".debug")) |
fbb61b50 | 354 | { |
9783e04a DM |
355 | #ifdef STYP_DEBUG |
356 | styp_flags = STYP_DEBUG; | |
357 | #else | |
fbb61b50 | 358 | styp_flags = STYP_INFO; |
9783e04a | 359 | #endif |
fbb61b50 | 360 | } |
89665c85 | 361 | else if (!strncmp (sec_name, ".stab", 5)) |
fbb61b50 SC |
362 | { |
363 | styp_flags = STYP_INFO; | |
364 | } | |
3ea928f5 SC |
365 | #ifdef COFF_WITH_PE |
366 | else if (!strcmp (sec_name, ".edata")) | |
367 | { | |
368 | styp_flags = STYP_DATA; | |
369 | } | |
5f710a3a ILT |
370 | #endif |
371 | #ifdef RS6000COFF_C | |
372 | else if (!strcmp (sec_name, _PAD)) | |
373 | { | |
374 | styp_flags = STYP_PAD; | |
375 | } | |
376 | else if (!strcmp (sec_name, _LOADER)) | |
377 | { | |
378 | styp_flags = STYP_LOADER; | |
379 | } | |
3ea928f5 | 380 | #endif |
47cf4997 | 381 | /* Try and figure out what it should be */ |
9783e04a | 382 | else if (sec_flags & SEC_CODE) |
fbb61b50 SC |
383 | { |
384 | styp_flags = STYP_TEXT; | |
385 | } | |
9783e04a | 386 | else if (sec_flags & SEC_DATA) |
fbb61b50 SC |
387 | { |
388 | styp_flags = STYP_DATA; | |
389 | } | |
47cf4997 | 390 | else if (sec_flags & SEC_READONLY) |
fbb61b50 | 391 | { |
47cf4997 | 392 | #ifdef STYP_LIT /* 29k readonly text/data section */ |
fbb61b50 | 393 | styp_flags = STYP_LIT; |
41f50af0 | 394 | #else |
fbb61b50 | 395 | styp_flags = STYP_TEXT; |
9783e04a | 396 | #endif /* STYP_LIT */ |
fbb61b50 | 397 | } |
47cf4997 | 398 | else if (sec_flags & SEC_LOAD) |
fbb61b50 SC |
399 | { |
400 | styp_flags = STYP_TEXT; | |
401 | } | |
402 | else if (sec_flags & SEC_ALLOC) | |
403 | { | |
404 | styp_flags = STYP_BSS; | |
405 | } | |
41f50af0 | 406 | |
b26059aa | 407 | #ifdef STYP_NOLOAD |
c16313f0 | 408 | if ((sec_flags & (SEC_NEVER_LOAD | SEC_COFF_SHARED_LIBRARY)) != 0) |
9783e04a | 409 | styp_flags |= STYP_NOLOAD; |
b26059aa ILT |
410 | #endif |
411 | ||
9783e04a | 412 | return (styp_flags); |
41f50af0 | 413 | } |
cbdc7909 | 414 | /* |
41f50af0 | 415 | * Return a word with SEC_* flags set to represent the incoming |
cbdc7909 JG |
416 | * STYP_* flags (from scnhdr.s_flags). The inverse of this |
417 | * function is sec_to_styp_flags(). | |
41f50af0 SC |
418 | * NOTE: If you add to/change this routine, you should mirror the changes |
419 | * in sec_to_styp_flags(). | |
420 | */ | |
cbdc7909 | 421 | static flagword |
e8fbe6d9 ILT |
422 | styp_to_sec_flags (abfd, hdr, name) |
423 | bfd *abfd; | |
57a1867e | 424 | PTR hdr; |
e8fbe6d9 | 425 | const char *name; |
41f50af0 | 426 | { |
075caafd ILT |
427 | struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr; |
428 | long styp_flags = internal_s->s_flags; | |
9783e04a | 429 | flagword sec_flags = 0; |
41f50af0 | 430 | |
b26059aa ILT |
431 | #ifdef STYP_NOLOAD |
432 | if (styp_flags & STYP_NOLOAD) | |
9783e04a DM |
433 | { |
434 | sec_flags |= SEC_NEVER_LOAD; | |
435 | } | |
b26059aa ILT |
436 | #endif /* STYP_NOLOAD */ |
437 | ||
8f718ed3 ILT |
438 | /* For 386 COFF, at least, an unloadable text or data section is |
439 | actually a shared library section. */ | |
440 | if (styp_flags & STYP_TEXT) | |
9783e04a DM |
441 | { |
442 | if (sec_flags & SEC_NEVER_LOAD) | |
c16313f0 | 443 | sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY; |
9783e04a DM |
444 | else |
445 | sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
446 | } | |
8f718ed3 | 447 | else if (styp_flags & STYP_DATA) |
9783e04a DM |
448 | { |
449 | if (sec_flags & SEC_NEVER_LOAD) | |
c16313f0 | 450 | sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY; |
9783e04a DM |
451 | else |
452 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
453 | } | |
454 | else if (styp_flags & STYP_BSS) | |
455 | { | |
35d835c4 | 456 | #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY |
9783e04a | 457 | if (sec_flags & SEC_NEVER_LOAD) |
c16313f0 | 458 | sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY; |
9783e04a | 459 | else |
35d835c4 | 460 | #endif |
9783e04a DM |
461 | sec_flags |= SEC_ALLOC; |
462 | } | |
463 | else if (styp_flags & STYP_INFO) | |
fbb61b50 | 464 | { |
b5b056fc KR |
465 | /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is |
466 | defined. coff_compute_section_file_positions uses | |
467 | COFF_PAGE_SIZE to ensure that the low order bits of the | |
468 | section VMA and the file offset match. If we don't know | |
469 | COFF_PAGE_SIZE, we can't ensure the correct correspondence, | |
470 | and demand page loading of the file will fail. */ | |
471 | #ifdef COFF_PAGE_SIZE | |
472 | sec_flags |= SEC_DEBUGGING; | |
473 | #endif | |
fbb61b50 | 474 | } |
e8fbe6d9 ILT |
475 | else if (strcmp (name, _TEXT) == 0) |
476 | { | |
477 | if (sec_flags & SEC_NEVER_LOAD) | |
478 | sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY; | |
479 | else | |
480 | sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
481 | } | |
1af85fbb | 482 | else if (strcmp (name, _DATA) == 0) |
e8fbe6d9 ILT |
483 | { |
484 | if (sec_flags & SEC_NEVER_LOAD) | |
485 | sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY; | |
486 | else | |
487 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
488 | } | |
489 | else if (strcmp (name, _BSS) == 0) | |
490 | { | |
491 | #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY | |
492 | if (sec_flags & SEC_NEVER_LOAD) | |
493 | sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY; | |
494 | else | |
495 | #endif | |
496 | sec_flags |= SEC_ALLOC; | |
497 | } | |
498 | else if (strcmp (name, ".debug") == 0 | |
499 | #ifdef _COMMENT | |
500 | || strcmp (name, _COMMENT) == 0 | |
501 | #endif | |
89665c85 | 502 | || strncmp (name, ".stab", 5) == 0) |
e8fbe6d9 ILT |
503 | { |
504 | #ifdef COFF_PAGE_SIZE | |
505 | sec_flags |= SEC_DEBUGGING; | |
506 | #endif | |
507 | } | |
508 | #ifdef _LIB | |
509 | else if (strcmp (name, _LIB) == 0) | |
510 | ; | |
511 | #endif | |
512 | #ifdef _LIT | |
513 | else if (strcmp (name, _LIT) == 0) | |
514 | { | |
515 | sec_flags = SEC_LOAD | SEC_ALLOC | SEC_READONLY; | |
516 | } | |
517 | #endif | |
8070f29d | 518 | else |
9783e04a DM |
519 | { |
520 | sec_flags |= SEC_ALLOC | SEC_LOAD; | |
521 | } | |
b26059aa | 522 | |
8070f29d KR |
523 | #ifdef STYP_LIT /* A29k readonly text/data section type */ |
524 | if ((styp_flags & STYP_LIT) == STYP_LIT) | |
9783e04a DM |
525 | { |
526 | sec_flags = (SEC_LOAD | SEC_ALLOC | SEC_READONLY); | |
527 | } | |
528 | #endif /* STYP_LIT */ | |
8070f29d KR |
529 | #ifdef STYP_OTHER_LOAD /* Other loaded sections */ |
530 | if (styp_flags & STYP_OTHER_LOAD) | |
9783e04a DM |
531 | { |
532 | sec_flags = (SEC_LOAD | SEC_ALLOC); | |
533 | } | |
534 | #endif /* STYP_SDATA */ | |
41f50af0 | 535 | |
9783e04a | 536 | return (sec_flags); |
41f50af0 | 537 | } |
0f268757 | 538 | |
f135c692 | 539 | #define get_index(symbol) ((symbol)->udata.i) |
0f268757 | 540 | |
07de8e96 KR |
541 | /* |
542 | INTERNAL_DEFINITION | |
543 | bfd_coff_backend_data | |
544 | ||
545 | CODE_FRAGMENT | |
546 | ||
c188b0be | 547 | Special entry points for gdb to swap in coff symbol table parts: |
9783e04a | 548 | .typedef struct |
60ac749c | 549 | .{ |
07de8e96 | 550 | . void (*_bfd_coff_swap_aux_in) PARAMS (( |
330595d0 | 551 | . bfd *abfd, |
07de8e96 KR |
552 | . PTR ext, |
553 | . int type, | |
330595d0 ILT |
554 | . int class, |
555 | . int indaux, | |
556 | . int numaux, | |
07de8e96 KR |
557 | . PTR in)); |
558 | . | |
559 | . void (*_bfd_coff_swap_sym_in) PARAMS (( | |
560 | . bfd *abfd , | |
561 | . PTR ext, | |
562 | . PTR in)); | |
563 | . | |
564 | . void (*_bfd_coff_swap_lineno_in) PARAMS (( | |
565 | . bfd *abfd, | |
566 | . PTR ext, | |
567 | . PTR in)); | |
568 | . | |
569 | ||
c188b0be | 570 | Special entry points for gas to swap out coff parts: |
07de8e96 KR |
571 | |
572 | . unsigned int (*_bfd_coff_swap_aux_out) PARAMS (( | |
573 | . bfd *abfd, | |
574 | . PTR in, | |
575 | . int type, | |
576 | . int class, | |
330595d0 ILT |
577 | . int indaux, |
578 | . int numaux, | |
07de8e96 KR |
579 | . PTR ext)); |
580 | . | |
581 | . unsigned int (*_bfd_coff_swap_sym_out) PARAMS (( | |
582 | . bfd *abfd, | |
583 | . PTR in, | |
584 | . PTR ext)); | |
585 | . | |
586 | . unsigned int (*_bfd_coff_swap_lineno_out) PARAMS (( | |
587 | . bfd *abfd, | |
588 | . PTR in, | |
589 | . PTR ext)); | |
590 | . | |
591 | . unsigned int (*_bfd_coff_swap_reloc_out) PARAMS (( | |
592 | . bfd *abfd, | |
593 | . PTR src, | |
594 | . PTR dst)); | |
595 | . | |
596 | . unsigned int (*_bfd_coff_swap_filehdr_out) PARAMS (( | |
597 | . bfd *abfd, | |
598 | . PTR in, | |
599 | . PTR out)); | |
600 | . | |
601 | . unsigned int (*_bfd_coff_swap_aouthdr_out) PARAMS (( | |
602 | . bfd *abfd, | |
603 | . PTR in, | |
604 | . PTR out)); | |
605 | . | |
606 | . unsigned int (*_bfd_coff_swap_scnhdr_out) PARAMS (( | |
607 | . bfd *abfd, | |
608 | . PTR in, | |
609 | . PTR out)); | |
610 | . | |
075caafd ILT |
611 | |
612 | Special entry points for generic COFF routines to call target | |
c188b0be | 613 | dependent COFF routines: |
075caafd ILT |
614 | |
615 | . unsigned int _bfd_filhsz; | |
616 | . unsigned int _bfd_aoutsz; | |
617 | . unsigned int _bfd_scnhsz; | |
618 | . unsigned int _bfd_symesz; | |
619 | . unsigned int _bfd_auxesz; | |
69645d10 | 620 | . unsigned int _bfd_relsz; |
075caafd ILT |
621 | . unsigned int _bfd_linesz; |
622 | . boolean _bfd_coff_long_filenames; | |
623 | . void (*_bfd_coff_swap_filehdr_in) PARAMS (( | |
624 | . bfd *abfd, | |
625 | . PTR ext, | |
626 | . PTR in)); | |
627 | . void (*_bfd_coff_swap_aouthdr_in) PARAMS (( | |
628 | . bfd *abfd, | |
629 | . PTR ext, | |
630 | . PTR in)); | |
631 | . void (*_bfd_coff_swap_scnhdr_in) PARAMS (( | |
632 | . bfd *abfd, | |
633 | . PTR ext, | |
634 | . PTR in)); | |
69645d10 ILT |
635 | . void (*_bfd_coff_swap_reloc_in) PARAMS (( |
636 | . bfd *abfd, | |
637 | . PTR ext, | |
638 | . PTR in)); | |
075caafd ILT |
639 | . boolean (*_bfd_coff_bad_format_hook) PARAMS (( |
640 | . bfd *abfd, | |
641 | . PTR internal_filehdr)); | |
642 | . boolean (*_bfd_coff_set_arch_mach_hook) PARAMS (( | |
643 | . bfd *abfd, | |
644 | . PTR internal_filehdr)); | |
645 | . PTR (*_bfd_coff_mkobject_hook) PARAMS (( | |
646 | . bfd *abfd, | |
27f524a3 ILT |
647 | . PTR internal_filehdr, |
648 | . PTR internal_aouthdr)); | |
075caafd ILT |
649 | . flagword (*_bfd_styp_to_sec_flags_hook) PARAMS (( |
650 | . bfd *abfd, | |
e8fbe6d9 ILT |
651 | . PTR internal_scnhdr, |
652 | . const char *name)); | |
075caafd ILT |
653 | . void (*_bfd_set_alignment_hook) PARAMS (( |
654 | . bfd *abfd, | |
655 | . asection *sec, | |
656 | . PTR internal_scnhdr)); | |
657 | . boolean (*_bfd_coff_slurp_symbol_table) PARAMS (( | |
658 | . bfd *abfd)); | |
659 | . boolean (*_bfd_coff_symname_in_debug) PARAMS (( | |
660 | . bfd *abfd, | |
661 | . struct internal_syment *sym)); | |
c80cc833 ILT |
662 | . boolean (*_bfd_coff_pointerize_aux_hook) PARAMS (( |
663 | . bfd *abfd, | |
664 | . combined_entry_type *table_base, | |
665 | . combined_entry_type *symbol, | |
666 | . unsigned int indaux, | |
667 | . combined_entry_type *aux)); | |
0fc9ada9 ILT |
668 | . boolean (*_bfd_coff_print_aux) PARAMS (( |
669 | . bfd *abfd, | |
670 | . FILE *file, | |
671 | . combined_entry_type *table_base, | |
672 | . combined_entry_type *symbol, | |
673 | . combined_entry_type *aux, | |
674 | . unsigned int indaux)); | |
075caafd ILT |
675 | . void (*_bfd_coff_reloc16_extra_cases) PARAMS (( |
676 | . bfd *abfd, | |
330595d0 ILT |
677 | . struct bfd_link_info *link_info, |
678 | . struct bfd_link_order *link_order, | |
075caafd ILT |
679 | . arelent *reloc, |
680 | . bfd_byte *data, | |
681 | . unsigned int *src_ptr, | |
682 | . unsigned int *dst_ptr)); | |
fbb61b50 | 683 | . int (*_bfd_coff_reloc16_estimate) PARAMS (( |
09a28207 | 684 | . bfd *abfd, |
fbb61b50 | 685 | . asection *input_section, |
fbb61b50 | 686 | . arelent *r, |
330595d0 ILT |
687 | . unsigned int shrink, |
688 | . struct bfd_link_info *link_info)); | |
69645d10 ILT |
689 | . boolean (*_bfd_coff_sym_is_global) PARAMS (( |
690 | . bfd *abfd, | |
691 | . struct internal_syment *)); | |
692 | . void (*_bfd_coff_compute_section_file_positions) PARAMS (( | |
693 | . bfd *abfd)); | |
a208a70f ILT |
694 | . boolean (*_bfd_coff_start_final_link) PARAMS (( |
695 | . bfd *output_bfd, | |
696 | . struct bfd_link_info *info)); | |
69645d10 ILT |
697 | . boolean (*_bfd_coff_relocate_section) PARAMS (( |
698 | . bfd *output_bfd, | |
699 | . struct bfd_link_info *info, | |
700 | . bfd *input_bfd, | |
701 | . asection *input_section, | |
702 | . bfd_byte *contents, | |
703 | . struct internal_reloc *relocs, | |
704 | . struct internal_syment *syms, | |
705 | . asection **sections)); | |
f135c692 ILT |
706 | . reloc_howto_type *(*_bfd_coff_rtype_to_howto) PARAMS (( |
707 | . bfd *abfd, | |
708 | . asection *sec, | |
709 | . struct internal_reloc *rel, | |
710 | . struct coff_link_hash_entry *h, | |
711 | . struct internal_syment *sym, | |
712 | . bfd_vma *addendp)); | |
713 | . boolean (*_bfd_coff_adjust_symndx) PARAMS (( | |
714 | . bfd *obfd, | |
715 | . struct bfd_link_info *info, | |
716 | . bfd *ibfd, | |
717 | . asection *sec, | |
718 | . struct internal_reloc *reloc, | |
719 | . boolean *adjustedp)); | |
fbb61b50 | 720 | . |
07de8e96 KR |
721 | .} bfd_coff_backend_data; |
722 | . | |
07de8e96 KR |
723 | .#define coff_backend_info(abfd) ((bfd_coff_backend_data *) (abfd)->xvec->backend_data) |
724 | . | |
330595d0 ILT |
725 | .#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \ |
726 | . ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i)) | |
07de8e96 KR |
727 | . |
728 | .#define bfd_coff_swap_sym_in(a,e,i) \ | |
729 | . ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i)) | |
730 | . | |
731 | .#define bfd_coff_swap_lineno_in(a,e,i) \ | |
732 | . ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i)) | |
733 | . | |
734 | .#define bfd_coff_swap_reloc_out(abfd, i, o) \ | |
735 | . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o)) | |
736 | . | |
737 | .#define bfd_coff_swap_lineno_out(abfd, i, o) \ | |
738 | . ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o)) | |
739 | . | |
330595d0 ILT |
740 | .#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \ |
741 | . ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o)) | |
07de8e96 KR |
742 | . |
743 | .#define bfd_coff_swap_sym_out(abfd, i,o) \ | |
744 | . ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o)) | |
745 | . | |
746 | .#define bfd_coff_swap_scnhdr_out(abfd, i,o) \ | |
747 | . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o)) | |
748 | . | |
749 | .#define bfd_coff_swap_filehdr_out(abfd, i,o) \ | |
750 | . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o)) | |
751 | . | |
752 | .#define bfd_coff_swap_aouthdr_out(abfd, i,o) \ | |
753 | . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o)) | |
754 | . | |
075caafd ILT |
755 | .#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz) |
756 | .#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz) | |
757 | .#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz) | |
758 | .#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz) | |
759 | .#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz) | |
69645d10 | 760 | .#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz) |
075caafd ILT |
761 | .#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz) |
762 | .#define bfd_coff_long_filenames(abfd) (coff_backend_info (abfd)->_bfd_coff_long_filenames) | |
763 | .#define bfd_coff_swap_filehdr_in(abfd, i,o) \ | |
764 | . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o)) | |
765 | . | |
766 | .#define bfd_coff_swap_aouthdr_in(abfd, i,o) \ | |
767 | . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o)) | |
768 | . | |
769 | .#define bfd_coff_swap_scnhdr_in(abfd, i,o) \ | |
770 | . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o)) | |
771 | . | |
69645d10 ILT |
772 | .#define bfd_coff_swap_reloc_in(abfd, i, o) \ |
773 | . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o)) | |
774 | . | |
075caafd ILT |
775 | .#define bfd_coff_bad_format_hook(abfd, filehdr) \ |
776 | . ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr)) | |
777 | . | |
778 | .#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\ | |
779 | . ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr)) | |
27f524a3 ILT |
780 | .#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\ |
781 | . ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook) (abfd, filehdr, aouthdr)) | |
075caafd | 782 | . |
e8fbe6d9 ILT |
783 | .#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name)\ |
784 | . ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook) (abfd, scnhdr, name)) | |
075caafd | 785 | . |
075caafd ILT |
786 | .#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\ |
787 | . ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr)) | |
788 | . | |
789 | .#define bfd_coff_slurp_symbol_table(abfd)\ | |
790 | . ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd)) | |
791 | . | |
792 | .#define bfd_coff_symname_in_debug(abfd, sym)\ | |
793 | . ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym)) | |
794 | . | |
0fc9ada9 ILT |
795 | .#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\ |
796 | . ((coff_backend_info (abfd)->_bfd_coff_print_aux)\ | |
797 | . (abfd, file, base, symbol, aux, indaux)) | |
798 | . | |
330595d0 | 799 | .#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)\ |
075caafd | 800 | . ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\ |
330595d0 | 801 | . (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)) |
fbb61b50 | 802 | . |
09a28207 | 803 | .#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\ |
fbb61b50 | 804 | . ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\ |
09a28207 | 805 | . (abfd, section, reloc, shrink, link_info)) |
9783e04a | 806 | . |
69645d10 ILT |
807 | .#define bfd_coff_sym_is_global(abfd, sym)\ |
808 | . ((coff_backend_info (abfd)->_bfd_coff_sym_is_global)\ | |
809 | . (abfd, sym)) | |
810 | . | |
811 | .#define bfd_coff_compute_section_file_positions(abfd)\ | |
812 | . ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\ | |
813 | . (abfd)) | |
814 | . | |
a208a70f ILT |
815 | .#define bfd_coff_start_final_link(obfd, info)\ |
816 | . ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\ | |
817 | . (obfd, info)) | |
69645d10 ILT |
818 | .#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\ |
819 | . ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\ | |
820 | . (obfd, info, ibfd, o, con, rel, isyms, secs)) | |
f135c692 ILT |
821 | .#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\ |
822 | . ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\ | |
823 | . (abfd, sec, rel, h, sym, addendp)) | |
824 | .#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\ | |
825 | . ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\ | |
826 | . (obfd, info, ibfd, sec, rel, adjustedp)) | |
69645d10 | 827 | . |
07de8e96 | 828 | */ |
0f268757 | 829 | |
075caafd | 830 | /* See whether the magic number matches. */ |
7a8b18b6 | 831 | |
075caafd | 832 | static boolean |
57a1867e DM |
833 | coff_bad_format_hook (abfd, filehdr) |
834 | bfd * abfd; | |
835 | PTR filehdr; | |
0f268757 | 836 | { |
075caafd | 837 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; |
0f268757 | 838 | |
075caafd ILT |
839 | if (BADMAG (*internal_f)) |
840 | return false; | |
0f268757 | 841 | |
075caafd ILT |
842 | /* if the optional header is NULL or not the correct size then |
843 | quit; the only difference I can see between m88k dgux headers (MC88DMAGIC) | |
844 | and Intel 960 readwrite headers (I960WRMAGIC) is that the | |
845 | optional header is of a different size. | |
cbdc7909 | 846 | |
075caafd ILT |
847 | But the mips keeps extra stuff in it's opthdr, so dont check |
848 | when doing that | |
849 | */ | |
0f268757 | 850 | |
075caafd ILT |
851 | #if defined(M88) || defined(I960) |
852 | if (internal_f->f_opthdr != 0 && AOUTSZ != internal_f->f_opthdr) | |
853 | return false; | |
0f268757 | 854 | #endif |
0f268757 | 855 | |
075caafd | 856 | return true; |
0f268757 SC |
857 | } |
858 | ||
0f268757 SC |
859 | /* |
860 | initialize a section structure with information peculiar to this | |
861 | particular implementation of coff | |
862 | */ | |
863 | ||
075caafd | 864 | static boolean |
57a1867e DM |
865 | coff_new_section_hook (abfd, section) |
866 | bfd * abfd; | |
867 | asection * section; | |
0f268757 | 868 | { |
f135c692 ILT |
869 | section->alignment_power = COFF_DEFAULT_SECTION_ALIGNMENT_POWER; |
870 | ||
5f710a3a ILT |
871 | #ifdef RS6000COFF_C |
872 | if (xcoff_data (abfd)->text_align_power != 0 | |
873 | && strcmp (bfd_get_section_name (abfd, section), ".text") == 0) | |
874 | section->alignment_power = xcoff_data (abfd)->text_align_power; | |
875 | if (xcoff_data (abfd)->data_align_power != 0 | |
876 | && strcmp (bfd_get_section_name (abfd, section), ".data") == 0) | |
877 | section->alignment_power = xcoff_data (abfd)->data_align_power; | |
878 | #endif | |
879 | ||
8070f29d KR |
880 | /* Allocate aux records for section symbols, to store size and |
881 | related info. | |
882 | ||
883 | @@ Shouldn't use constant multiplier here! */ | |
884 | coffsymbol (section->symbol)->native = | |
885 | (combined_entry_type *) bfd_zalloc (abfd, | |
886 | sizeof (combined_entry_type) * 10); | |
c16313f0 | 887 | |
f135c692 ILT |
888 | /* The .stab section must be aligned to 2**2 at most, because |
889 | otherwise there may be gaps in the section which gdb will not | |
890 | know how to interpret. Examining the section name is a hack, but | |
850985ee ILT |
891 | that is also how gdb locates the section. |
892 | We need to handle the .ctors and .dtors sections similarly, to | |
893 | avoid introducing null words in the tables. */ | |
f135c692 | 894 | if (COFF_DEFAULT_SECTION_ALIGNMENT_POWER > 2 |
850985ee ILT |
895 | && (strncmp (section->name, ".stab", 5) == 0 |
896 | || strcmp (section->name, ".ctors") == 0 | |
897 | || strcmp (section->name, ".dtors") == 0)) | |
f135c692 | 898 | section->alignment_power = 2; |
c16313f0 | 899 | |
0f268757 SC |
900 | return true; |
901 | } | |
902 | ||
0f268757 | 903 | #ifdef I960 |
e98e6ec1 | 904 | |
075caafd ILT |
905 | /* Set the alignment of a BFD section. */ |
906 | ||
907 | static void | |
57a1867e DM |
908 | coff_set_alignment_hook (abfd, section, scnhdr) |
909 | bfd * abfd; | |
910 | asection * section; | |
911 | PTR scnhdr; | |
e98e6ec1 | 912 | { |
075caafd ILT |
913 | struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr; |
914 | unsigned int i; | |
915 | ||
916 | for (i = 0; i < 32; i++) | |
917 | if ((1 << i) >= hdr->s_align) | |
918 | break; | |
919 | section->alignment_power = i; | |
e98e6ec1 SC |
920 | } |
921 | ||
075caafd | 922 | #else /* ! I960 */ |
0f268757 | 923 | |
075caafd ILT |
924 | #define coff_set_alignment_hook \ |
925 | ((void (*) PARAMS ((bfd *, asection *, PTR))) bfd_void) | |
41f50af0 | 926 | |
075caafd | 927 | #endif /* ! I960 */ |
0f268757 | 928 | |
beee31b1 | 929 | #ifndef coff_mkobject |
9783e04a | 930 | static boolean |
57a1867e DM |
931 | coff_mkobject (abfd) |
932 | bfd * abfd; | |
0f268757 | 933 | { |
075caafd ILT |
934 | coff_data_type *coff; |
935 | ||
9783e04a DM |
936 | abfd->tdata.coff_obj_data = (struct coff_tdata *) bfd_zalloc (abfd, sizeof (coff_data_type)); |
937 | if (abfd->tdata.coff_obj_data == 0) | |
938 | { | |
57a1867e | 939 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
940 | return false; |
941 | } | |
075caafd ILT |
942 | coff = coff_data (abfd); |
943 | coff->symbols = (coff_symbol_type *) NULL; | |
944 | coff->conversion_table = (unsigned int *) NULL; | |
945 | coff->raw_syments = (struct coff_ptr_struct *) NULL; | |
075caafd | 946 | coff->relocbase = 0; |
6590a8c9 | 947 | /* make_abs_section(abfd);*/ |
89665c85 | 948 | |
0f268757 SC |
949 | return true; |
950 | } | |
beee31b1 | 951 | #endif |
0f268757 | 952 | |
075caafd | 953 | /* Create the COFF backend specific information. */ |
beee31b1 | 954 | #ifndef coff_mkobject_hook |
9783e04a | 955 | static PTR |
57a1867e DM |
956 | coff_mkobject_hook (abfd, filehdr, aouthdr) |
957 | bfd * abfd; | |
958 | PTR filehdr; | |
959 | PTR aouthdr; | |
0f268757 | 960 | { |
075caafd | 961 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; |
0f268757 | 962 | coff_data_type *coff; |
cbdc7909 | 963 | |
075caafd ILT |
964 | if (coff_mkobject (abfd) == false) |
965 | return NULL; | |
e98e6ec1 | 966 | |
075caafd | 967 | coff = coff_data (abfd); |
cbdc7909 | 968 | |
075caafd | 969 | coff->sym_filepos = internal_f->f_symptr; |
cbdc7909 | 970 | |
075caafd ILT |
971 | /* These members communicate important constants about the symbol |
972 | table to GDB's symbol-reading code. These `constants' | |
973 | unfortunately vary among coff implementations... */ | |
974 | coff->local_n_btmask = N_BTMASK; | |
975 | coff->local_n_btshft = N_BTSHFT; | |
9783e04a | 976 | coff->local_n_tmask = N_TMASK; |
075caafd | 977 | coff->local_n_tshift = N_TSHIFT; |
9783e04a DM |
978 | coff->local_symesz = SYMESZ; |
979 | coff->local_auxesz = AUXESZ; | |
980 | coff->local_linesz = LINESZ; | |
cbdc7909 | 981 | |
69645d10 ILT |
982 | obj_raw_syment_count (abfd) = |
983 | obj_conv_table_size (abfd) = | |
984 | internal_f->f_nsyms; | |
985 | ||
5f710a3a ILT |
986 | #ifdef RS6000COFF_C |
987 | if ((internal_f->f_flags & F_SHROBJ) != 0) | |
988 | abfd->flags |= DYNAMIC; | |
989 | if (aouthdr != NULL && internal_f->f_opthdr >= AOUTSZ) | |
990 | { | |
991 | struct internal_aouthdr *internal_a = | |
992 | (struct internal_aouthdr *) aouthdr; | |
993 | struct xcoff_tdata *xcoff; | |
994 | ||
995 | xcoff = xcoff_data (abfd); | |
996 | xcoff->toc = internal_a->o_toc; | |
997 | xcoff->text_align_power = internal_a->o_algntext; | |
998 | xcoff->data_align_power = internal_a->o_algndata; | |
999 | xcoff->modtype = internal_a->o_modtype; | |
1000 | xcoff->maxdata = internal_a->o_maxdata; | |
1001 | xcoff->maxstack = internal_a->o_maxstack; | |
1002 | } | |
1003 | #endif | |
1004 | ||
075caafd ILT |
1005 | return (PTR) coff; |
1006 | } | |
beee31b1 | 1007 | #endif |
cbdc7909 | 1008 | |
075caafd ILT |
1009 | /* Determine the machine architecture and type. FIXME: This is target |
1010 | dependent because the magic numbers are defined in the target | |
1011 | dependent header files. But there is no particular need for this. | |
1012 | If the magic numbers were moved to a separate file, this function | |
1013 | would be target independent and would also be much more successful | |
1014 | at linking together COFF files for different architectures. */ | |
cbdc7909 | 1015 | |
075caafd | 1016 | static boolean |
9783e04a | 1017 | coff_set_arch_mach_hook (abfd, filehdr) |
4d09e8ac JK |
1018 | bfd *abfd; |
1019 | PTR filehdr; | |
075caafd ILT |
1020 | { |
1021 | long machine; | |
1022 | enum bfd_architecture arch; | |
1023 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
e98e6ec1 | 1024 | |
075caafd | 1025 | machine = 0; |
9783e04a DM |
1026 | switch (internal_f->f_magic) |
1027 | { | |
80b2dd82 KK |
1028 | #ifdef PPCMAGIC |
1029 | case PPCMAGIC: | |
1030 | arch = bfd_arch_powerpc; | |
1031 | machine = 0; /* what does this mean? (krk) */ | |
1032 | break; | |
1033 | #endif | |
20fdc627 | 1034 | #ifdef I386MAGIC |
9783e04a DM |
1035 | case I386MAGIC: |
1036 | case I386PTXMAGIC: | |
1037 | case I386AIXMAGIC: /* Danbury PS/2 AIX C Compiler */ | |
1038 | case LYNXCOFFMAGIC: /* shadows the m68k Lynx number below, sigh */ | |
1039 | arch = bfd_arch_i386; | |
1040 | machine = 0; | |
1041 | break; | |
20fdc627 | 1042 | #endif |
cbdc7909 | 1043 | #ifdef A29K_MAGIC_BIG |
9783e04a DM |
1044 | case A29K_MAGIC_BIG: |
1045 | case A29K_MAGIC_LITTLE: | |
1046 | arch = bfd_arch_a29k; | |
1047 | machine = 0; | |
1048 | break; | |
41f50af0 | 1049 | #endif |
89665c85 SC |
1050 | #ifdef ARMMAGIC |
1051 | case ARMMAGIC: | |
1052 | arch = bfd_arch_arm; | |
1053 | machine =0; | |
1054 | break; | |
1055 | #endif | |
0f268757 | 1056 | #ifdef MC68MAGIC |
9783e04a DM |
1057 | case MC68MAGIC: |
1058 | case M68MAGIC: | |
97eb2f0c | 1059 | #ifdef MC68KBCSMAGIC |
9783e04a | 1060 | case MC68KBCSMAGIC: |
97eb2f0c KR |
1061 | #endif |
1062 | #ifdef APOLLOM68KMAGIC | |
9783e04a | 1063 | case APOLLOM68KMAGIC: |
c188b0be DM |
1064 | #endif |
1065 | #ifdef LYNXCOFFMAGIC | |
9783e04a | 1066 | case LYNXCOFFMAGIC: |
97eb2f0c | 1067 | #endif |
9783e04a DM |
1068 | arch = bfd_arch_m68k; |
1069 | machine = 68020; | |
1070 | break; | |
0f268757 SC |
1071 | #endif |
1072 | #ifdef MC88MAGIC | |
9783e04a DM |
1073 | case MC88MAGIC: |
1074 | case MC88DMAGIC: | |
1075 | case MC88OMAGIC: | |
1076 | arch = bfd_arch_m88k; | |
1077 | machine = 88100; | |
1078 | break; | |
0f268757 | 1079 | #endif |
dc999ad9 | 1080 | #ifdef Z8KMAGIC |
9783e04a DM |
1081 | case Z8KMAGIC: |
1082 | arch = bfd_arch_z8k; | |
1083 | switch (internal_f->f_flags & F_MACHMASK) | |
1084 | { | |
1085 | case F_Z8001: | |
1086 | machine = bfd_mach_z8001; | |
1087 | break; | |
1088 | case F_Z8002: | |
1089 | machine = bfd_mach_z8002; | |
1090 | break; | |
1091 | default: | |
1092 | return false; | |
1093 | } | |
1094 | break; | |
dc999ad9 | 1095 | #endif |
0f268757 SC |
1096 | #ifdef I960 |
1097 | #ifdef I960ROMAGIC | |
9783e04a DM |
1098 | case I960ROMAGIC: |
1099 | case I960RWMAGIC: | |
1100 | arch = bfd_arch_i960; | |
1101 | switch (F_I960TYPE & internal_f->f_flags) | |
0f268757 SC |
1102 | { |
1103 | default: | |
1104 | case F_I960CORE: | |
0d740984 | 1105 | machine = bfd_mach_i960_core; |
0f268757 SC |
1106 | break; |
1107 | case F_I960KB: | |
0d740984 | 1108 | machine = bfd_mach_i960_kb_sb; |
0f268757 | 1109 | break; |
9783e04a | 1110 | case F_I960MC: |
0d740984 | 1111 | machine = bfd_mach_i960_mc; |
0f268757 SC |
1112 | break; |
1113 | case F_I960XA: | |
0d740984 | 1114 | machine = bfd_mach_i960_xa; |
0f268757 SC |
1115 | break; |
1116 | case F_I960CA: | |
0d740984 | 1117 | machine = bfd_mach_i960_ca; |
0f268757 SC |
1118 | break; |
1119 | case F_I960KA: | |
0d740984 | 1120 | machine = bfd_mach_i960_ka_sa; |
0f268757 | 1121 | break; |
b5b056fc KR |
1122 | /* start-sanitize-i960xl */ |
1123 | case F_I960XL: | |
1124 | machine = bfd_mach_i960_xl; | |
1125 | break; | |
1126 | /* end-sanitize-i960xl */ | |
0f268757 | 1127 | } |
9783e04a | 1128 | break; |
0f268757 SC |
1129 | #endif |
1130 | #endif | |
cbdc7909 JG |
1131 | |
1132 | #ifdef U802ROMAGIC | |
9783e04a DM |
1133 | case U802ROMAGIC: |
1134 | case U802WRMAGIC: | |
1135 | case U802TOCMAGIC: | |
db344f82 SC |
1136 | #ifdef POWERMAC |
1137 | /* PowerPC Macs use the same magic numbers as RS/6000 (because | |
1138 | that's how they were bootstrapped originally), but they are | |
1139 | always PowerPC architecture. */ | |
1140 | arch = bfd_arch_powerpc; | |
1141 | machine = 601; | |
1142 | #else | |
1143 | /* FIXME The architecture and machine can now (as of AIX 4.1) be | |
1144 | identified by looking at fields in the a.out header. */ | |
9783e04a DM |
1145 | arch = bfd_arch_rs6000; |
1146 | machine = 6000; | |
db344f82 | 1147 | #endif /* POWERMAC */ |
9783e04a | 1148 | break; |
cbdc7909 JG |
1149 | #endif |
1150 | ||
dc999ad9 | 1151 | #ifdef WE32KMAGIC |
9783e04a DM |
1152 | case WE32KMAGIC: |
1153 | arch = bfd_arch_we32k; | |
1154 | machine = 0; | |
1155 | break; | |
dc999ad9 ILT |
1156 | #endif |
1157 | ||
3b4f1a5d | 1158 | #ifdef H8300MAGIC |
9783e04a DM |
1159 | case H8300MAGIC: |
1160 | arch = bfd_arch_h8300; | |
1161 | machine = bfd_mach_h8300; | |
1162 | /* !! FIXME this probably isn't the right place for this */ | |
1163 | abfd->flags |= BFD_IS_RELAXABLE; | |
1164 | break; | |
4d09e8ac JK |
1165 | #endif |
1166 | ||
1167 | #ifdef H8300HMAGIC | |
9783e04a DM |
1168 | case H8300HMAGIC: |
1169 | arch = bfd_arch_h8300; | |
1170 | machine = bfd_mach_h8300h; | |
1171 | /* !! FIXME this probably isn't the right place for this */ | |
1172 | abfd->flags |= BFD_IS_RELAXABLE; | |
1173 | break; | |
142ce43e SC |
1174 | #endif |
1175 | ||
f135c692 ILT |
1176 | #ifdef SH_ARCH_MAGIC_BIG |
1177 | case SH_ARCH_MAGIC_BIG: | |
1178 | case SH_ARCH_MAGIC_LITTLE: | |
9783e04a DM |
1179 | arch = bfd_arch_sh; |
1180 | machine = 0; | |
1181 | break; | |
9faacb92 SC |
1182 | #endif |
1183 | ||
142ce43e | 1184 | #ifdef H8500MAGIC |
9783e04a DM |
1185 | case H8500MAGIC: |
1186 | arch = bfd_arch_h8500; | |
1187 | machine = 0; | |
1188 | break; | |
3b4f1a5d | 1189 | #endif |
cbdc7909 | 1190 | |
c188b0be | 1191 | #ifdef SPARCMAGIC |
9783e04a | 1192 | case SPARCMAGIC: |
c16313f0 ILT |
1193 | #ifdef LYNXCOFFMAGIC |
1194 | case LYNXCOFFMAGIC: | |
1195 | #endif | |
9783e04a DM |
1196 | arch = bfd_arch_sparc; |
1197 | machine = 0; | |
1198 | break; | |
c188b0be DM |
1199 | #endif |
1200 | ||
9783e04a DM |
1201 | default: /* Unreadable input file type */ |
1202 | arch = bfd_arch_obscure; | |
1203 | break; | |
1204 | } | |
cbdc7909 | 1205 | |
9783e04a | 1206 | bfd_default_set_arch_mach (abfd, arch, machine); |
075caafd ILT |
1207 | return true; |
1208 | } | |
cbdc7909 | 1209 | |
075caafd | 1210 | #ifdef SYMNAME_IN_DEBUG |
6f715d66 | 1211 | |
075caafd | 1212 | static boolean |
57a1867e DM |
1213 | symname_in_debug_hook (abfd, sym) |
1214 | bfd * abfd; | |
1215 | struct internal_syment *sym; | |
075caafd ILT |
1216 | { |
1217 | return SYMNAME_IN_DEBUG (sym) ? true : false; | |
1218 | } | |
6f715d66 | 1219 | |
075caafd | 1220 | #else |
cbdc7909 | 1221 | |
075caafd ILT |
1222 | #define symname_in_debug_hook \ |
1223 | (boolean (*) PARAMS ((bfd *, struct internal_syment *))) bfd_false | |
cbdc7909 | 1224 | |
075caafd | 1225 | #endif |
7a8b18b6 | 1226 | |
c80cc833 ILT |
1227 | #ifdef RS6000COFF_C |
1228 | ||
0fc9ada9 | 1229 | /* Handle the csect auxent of a C_EXT or C_HIDEXT symbol. */ |
c80cc833 ILT |
1230 | |
1231 | static boolean coff_pointerize_aux_hook | |
1232 | PARAMS ((bfd *, combined_entry_type *, combined_entry_type *, | |
1233 | unsigned int, combined_entry_type *)); | |
1234 | ||
1235 | /*ARGSUSED*/ | |
1236 | static boolean | |
1237 | coff_pointerize_aux_hook (abfd, table_base, symbol, indaux, aux) | |
1238 | bfd *abfd; | |
1239 | combined_entry_type *table_base; | |
1240 | combined_entry_type *symbol; | |
1241 | unsigned int indaux; | |
1242 | combined_entry_type *aux; | |
1243 | { | |
1244 | int class = symbol->u.syment.n_sclass; | |
1245 | ||
0fc9ada9 ILT |
1246 | if ((class == C_EXT || class == C_HIDEXT) |
1247 | && indaux + 1 == symbol->u.syment.n_numaux) | |
1248 | { | |
1249 | if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) == XTY_LD) | |
1250 | { | |
1251 | aux->u.auxent.x_csect.x_scnlen.p = | |
1252 | table_base + aux->u.auxent.x_csect.x_scnlen.l; | |
1253 | aux->fix_scnlen = 1; | |
1254 | } | |
1255 | ||
1256 | /* Return true to indicate that the caller should not do any | |
1257 | further work on this auxent. */ | |
1258 | return true; | |
1259 | } | |
1260 | ||
1261 | /* Return false to indicate that this auxent should be handled by | |
1262 | the caller. */ | |
1263 | return false; | |
c80cc833 ILT |
1264 | } |
1265 | ||
1266 | #else | |
1267 | #ifdef I960 | |
1268 | ||
1269 | /* We don't want to pointerize bal entries. */ | |
1270 | ||
1271 | static boolean coff_pointerize_aux_hook | |
1272 | PARAMS ((bfd *, combined_entry_type *, combined_entry_type *, | |
1273 | unsigned int, combined_entry_type *)); | |
1274 | ||
1275 | /*ARGSUSED*/ | |
1276 | static boolean | |
1277 | coff_pointerize_aux_hook (abfd, table_base, symbol, indaux, aux) | |
1278 | bfd *abfd; | |
1279 | combined_entry_type *table_base; | |
1280 | combined_entry_type *symbol; | |
1281 | unsigned int indaux; | |
1282 | combined_entry_type *aux; | |
1283 | { | |
1284 | /* Return true if we don't want to pointerize this aux entry, which | |
1285 | is the case for the lastfirst aux entry for a C_LEAFPROC symbol. */ | |
1286 | return indaux == 1 && symbol->u.syment.n_sclass == C_LEAFPROC; | |
1287 | } | |
1288 | ||
1289 | #else /* ! I960 */ | |
1290 | ||
1291 | #define coff_pointerize_aux_hook 0 | |
1292 | ||
1293 | #endif /* ! I960 */ | |
1294 | #endif /* ! RS6000COFF_C */ | |
1295 | ||
0fc9ada9 ILT |
1296 | /* Print an aux entry. This returns true if it has printed it. */ |
1297 | ||
1298 | static boolean coff_print_aux | |
1299 | PARAMS ((bfd *, FILE *, combined_entry_type *, combined_entry_type *, | |
1300 | combined_entry_type *, unsigned int)); | |
1301 | ||
1302 | static boolean | |
1303 | coff_print_aux (abfd, file, table_base, symbol, aux, indaux) | |
1304 | bfd *abfd; | |
1305 | FILE *file; | |
1306 | combined_entry_type *table_base; | |
1307 | combined_entry_type *symbol; | |
1308 | combined_entry_type *aux; | |
1309 | unsigned int indaux; | |
1310 | { | |
1311 | #ifdef RS6000COFF_C | |
1312 | if ((symbol->u.syment.n_sclass == C_EXT | |
1313 | || symbol->u.syment.n_sclass == C_HIDEXT) | |
1314 | && indaux + 1 == symbol->u.syment.n_numaux) | |
1315 | { | |
1316 | /* This is a csect entry. */ | |
1317 | fprintf (file, "AUX "); | |
1318 | if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) != XTY_LD) | |
1319 | { | |
1320 | BFD_ASSERT (! aux->fix_scnlen); | |
1321 | fprintf (file, "val %5ld", aux->u.auxent.x_csect.x_scnlen.l); | |
1322 | } | |
1323 | else | |
1324 | { | |
1325 | fprintf (file, "indx "); | |
1326 | if (! aux->fix_scnlen) | |
1327 | fprintf (file, "%4ld", aux->u.auxent.x_csect.x_scnlen.l); | |
1328 | else | |
1329 | fprintf (file, "%4ld", | |
1330 | (long) (aux->u.auxent.x_csect.x_scnlen.p - table_base)); | |
1331 | } | |
1332 | fprintf (file, | |
1333 | " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u", | |
1334 | aux->u.auxent.x_csect.x_parmhash, | |
1335 | (unsigned int) aux->u.auxent.x_csect.x_snhash, | |
1336 | SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp), | |
1337 | SMTYP_ALIGN (aux->u.auxent.x_csect.x_smtyp), | |
1338 | (unsigned int) aux->u.auxent.x_csect.x_smclas, | |
1339 | aux->u.auxent.x_csect.x_stab, | |
1340 | (unsigned int) aux->u.auxent.x_csect.x_snstab); | |
1341 | return true; | |
1342 | } | |
1343 | #endif | |
1344 | ||
1345 | /* Return false to indicate that no special action was taken. */ | |
1346 | return false; | |
1347 | } | |
1348 | ||
9fda1a39 SC |
1349 | /* |
1350 | SUBSUBSECTION | |
c188b0be | 1351 | Writing relocations |
9fda1a39 | 1352 | |
c188b0be DM |
1353 | To write relocations, the back end steps though the |
1354 | canonical relocation table and create an | |
9fda1a39 | 1355 | @code{internal_reloc}. The symbol index to use is removed from |
c188b0be | 1356 | the @code{offset} field in the symbol table supplied. The |
9fda1a39 | 1357 | address comes directly from the sum of the section base |
c188b0be | 1358 | address and the relocation offset; the type is dug directly |
9fda1a39 SC |
1359 | from the howto field. Then the @code{internal_reloc} is |
1360 | swapped into the shape of an @code{external_reloc} and written | |
9783e04a | 1361 | out to disk. |
9fda1a39 | 1362 | |
6f715d66 | 1363 | */ |
0f268757 | 1364 | |
791a3db4 | 1365 | static boolean |
89665c85 | 1366 | coff_write_relocs (abfd, first_undef) |
57a1867e | 1367 | bfd * abfd; |
89665c85 | 1368 | int first_undef; |
6f715d66 | 1369 | { |
9783e04a DM |
1370 | asection *s; |
1371 | for (s = abfd->sections; s != (asection *) NULL; s = s->next) | |
1372 | { | |
1373 | unsigned int i; | |
1374 | struct external_reloc dst; | |
1375 | ||
1376 | arelent **p = s->orelocation; | |
791a3db4 ILT |
1377 | if (bfd_seek (abfd, s->rel_filepos, SEEK_SET) != 0) |
1378 | return false; | |
9783e04a DM |
1379 | for (i = 0; i < s->reloc_count; i++) |
1380 | { | |
1381 | struct internal_reloc n; | |
1382 | arelent *q = p[i]; | |
1383 | memset ((PTR) & n, 0, sizeof (n)); | |
1384 | ||
89665c85 SC |
1385 | /* Now we've renumbered the symbols we know where the |
1386 | undefined symbols live in the table. Check the reloc | |
1387 | entries for symbols who's output bfd isn't the right one. | |
1388 | This is because the symbol was undefined (which means | |
1389 | that all the pointers are never made to point to the same | |
1390 | place). This is a bad thing,'cause the symbols attached | |
1391 | to the output bfd are indexed, so that the relocation | |
1392 | entries know which symbol index they point to. So we | |
1393 | have to look up the output symbol here. */ | |
1394 | ||
1395 | if (q->sym_ptr_ptr[0]->the_bfd != abfd) | |
1396 | { | |
1397 | int i; | |
1398 | const char *sname = q->sym_ptr_ptr[0]->name; | |
1399 | asymbol **outsyms = abfd->outsymbols; | |
1400 | for (i = first_undef; outsyms[i]; i++) | |
1401 | { | |
1402 | const char *intable = outsyms[i]->name; | |
1403 | if (strcmp (intable, sname) == 0) { | |
1404 | /* got a hit, so repoint the reloc */ | |
1405 | q->sym_ptr_ptr = outsyms + i; | |
1406 | break; | |
1407 | } | |
1408 | } | |
1409 | } | |
1410 | ||
9783e04a DM |
1411 | n.r_vaddr = q->address + s->vma; |
1412 | ||
1413 | #ifdef R_IHCONST | |
1414 | /* The 29k const/consth reloc pair is a real kludge. The consth | |
89665c85 SC |
1415 | part doesn't have a symbol; it has an offset. So rebuilt |
1416 | that here. */ | |
9783e04a DM |
1417 | if (q->howto->type == R_IHCONST) |
1418 | n.r_symndx = q->addend; | |
1419 | else | |
780c477a | 1420 | #endif |
89665c85 SC |
1421 | if (q->sym_ptr_ptr) |
1422 | { | |
1423 | if (q->sym_ptr_ptr == bfd_abs_section_ptr->symbol_ptr_ptr) | |
1424 | /* This is a relocation relative to the absolute symbol. */ | |
1425 | n.r_symndx = -1; | |
1426 | else | |
1427 | { | |
1428 | n.r_symndx = get_index ((*(q->sym_ptr_ptr))); | |
1429 | /* Take notice if the symbol reloc points to a symbol | |
1430 | we don't have in our symbol table. What should we | |
1431 | do for this?? */ | |
1432 | if (n.r_symndx > obj_conv_table_size (abfd)) | |
1433 | abort (); | |
1434 | } | |
1435 | } | |
780c477a | 1436 | |
cd83759c | 1437 | #ifdef SWAP_OUT_RELOC_OFFSET |
9783e04a | 1438 | n.r_offset = q->addend; |
cd83759c | 1439 | #endif |
c26d7d17 | 1440 | |
0f268757 | 1441 | #ifdef SELECT_RELOC |
9783e04a DM |
1442 | /* Work out reloc type from what is required */ |
1443 | SELECT_RELOC (n, q->howto); | |
0f268757 | 1444 | #else |
9783e04a | 1445 | n.r_type = q->howto->type; |
0f268757 | 1446 | #endif |
9783e04a | 1447 | coff_swap_reloc_out (abfd, &n, &dst); |
791a3db4 ILT |
1448 | if (bfd_write ((PTR) & dst, 1, RELSZ, abfd) != RELSZ) |
1449 | return false; | |
9783e04a | 1450 | } |
0f268757 | 1451 | } |
791a3db4 ILT |
1452 | |
1453 | return true; | |
6f715d66 | 1454 | } |
7a8b18b6 SC |
1455 | |
1456 | /* Set flags and magic number of a coff file from architecture and machine | |
1457 | type. Result is true if we can represent the arch&type, false if not. */ | |
0f268757 | 1458 | |
9783e04a | 1459 | static boolean |
57a1867e DM |
1460 | coff_set_flags (abfd, magicp, flagsp) |
1461 | bfd * abfd; | |
1462 | unsigned *magicp; | |
1463 | unsigned short *flagsp; | |
6f715d66 | 1464 | { |
9783e04a | 1465 | switch (bfd_get_arch (abfd)) |
dc999ad9 | 1466 | { |
9783e04a DM |
1467 | #ifdef Z8KMAGIC |
1468 | case bfd_arch_z8k: | |
1469 | *magicp = Z8KMAGIC; | |
1470 | switch (bfd_get_mach (abfd)) | |
1471 | { | |
1472 | case bfd_mach_z8001: | |
1473 | *flagsp = F_Z8001; | |
1474 | break; | |
1475 | case bfd_mach_z8002: | |
1476 | *flagsp = F_Z8002; | |
1477 | break; | |
1478 | default: | |
1479 | return false; | |
1480 | } | |
1481 | return true; | |
dc999ad9 | 1482 | #endif |
0f268757 | 1483 | #ifdef I960ROMAGIC |
cbdc7909 | 1484 | |
3b4f1a5d | 1485 | case bfd_arch_i960: |
cbdc7909 | 1486 | |
6f715d66 | 1487 | { |
9783e04a | 1488 | unsigned flags; |
6f715d66 SC |
1489 | *magicp = I960ROMAGIC; |
1490 | /* | |
1491 | ((bfd_get_file_flags(abfd) & WP_TEXT) ? I960ROMAGIC : | |
1492 | I960RWMAGIC); FIXME??? | |
1493 | */ | |
9783e04a DM |
1494 | switch (bfd_get_mach (abfd)) |
1495 | { | |
1496 | case bfd_mach_i960_core: | |
1497 | flags = F_I960CORE; | |
1498 | break; | |
1499 | case bfd_mach_i960_kb_sb: | |
1500 | flags = F_I960KB; | |
1501 | break; | |
1502 | case bfd_mach_i960_mc: | |
1503 | flags = F_I960MC; | |
1504 | break; | |
1505 | case bfd_mach_i960_xa: | |
1506 | flags = F_I960XA; | |
1507 | break; | |
1508 | case bfd_mach_i960_ca: | |
1509 | flags = F_I960CA; | |
1510 | break; | |
1511 | case bfd_mach_i960_ka_sa: | |
1512 | flags = F_I960KA; | |
1513 | break; | |
b5b056fc KR |
1514 | /* start-sanitize-i960xl */ |
1515 | case bfd_mach_i960_xl: | |
1516 | flags = F_I960XL; | |
1517 | break; | |
1518 | /* end-sanitize-i960xl */ | |
9783e04a DM |
1519 | default: |
1520 | return false; | |
1521 | } | |
6f715d66 SC |
1522 | *flagsp = flags; |
1523 | return true; | |
1524 | } | |
9783e04a | 1525 | break; |
0f268757 | 1526 | #endif |
89665c85 SC |
1527 | #ifdef ARMMAGIC |
1528 | case bfd_arch_arm: | |
1529 | *magicp = ARMMAGIC; | |
1530 | return true; | |
1531 | #endif | |
80b2dd82 KK |
1532 | #ifdef PPCMAGIC |
1533 | case bfd_arch_powerpc: | |
1534 | *magicp = PPCMAGIC; | |
1535 | return true; | |
1536 | break; | |
1537 | #endif | |
20fdc627 | 1538 | #ifdef I386MAGIC |
9783e04a DM |
1539 | case bfd_arch_i386: |
1540 | *magicp = I386MAGIC; | |
c188b0be | 1541 | #ifdef LYNXOS |
9783e04a DM |
1542 | /* Just overwrite the usual value if we're doing Lynx. */ |
1543 | *magicp = LYNXCOFFMAGIC; | |
c188b0be | 1544 | #endif |
9783e04a DM |
1545 | return true; |
1546 | break; | |
20fdc627 | 1547 | #endif |
0f268757 | 1548 | #ifdef MC68MAGIC |
9783e04a | 1549 | case bfd_arch_m68k: |
97eb2f0c | 1550 | #ifdef APOLLOM68KMAGIC |
9783e04a | 1551 | *magicp = APOLLO_COFF_VERSION_NUMBER; |
97eb2f0c | 1552 | #else |
9783e04a | 1553 | *magicp = MC68MAGIC; |
c188b0be DM |
1554 | #endif |
1555 | #ifdef LYNXOS | |
9783e04a DM |
1556 | /* Just overwrite the usual value if we're doing Lynx. */ |
1557 | *magicp = LYNXCOFFMAGIC; | |
97eb2f0c | 1558 | #endif |
9783e04a DM |
1559 | return true; |
1560 | break; | |
0f268757 | 1561 | #endif |
cbdc7909 | 1562 | |
0f268757 | 1563 | #ifdef MC88MAGIC |
3b4f1a5d SC |
1564 | case bfd_arch_m88k: |
1565 | *magicp = MC88OMAGIC; | |
1566 | return true; | |
1567 | break; | |
1568 | #endif | |
1569 | #ifdef H8300MAGIC | |
1570 | case bfd_arch_h8300: | |
9783e04a DM |
1571 | switch (bfd_get_mach (abfd)) |
1572 | { | |
1573 | case bfd_mach_h8300: | |
1574 | *magicp = H8300MAGIC; | |
1575 | return true; | |
1576 | case bfd_mach_h8300h: | |
1577 | *magicp = H8300HMAGIC; | |
1578 | return true; | |
1579 | } | |
3b4f1a5d | 1580 | break; |
0f268757 | 1581 | #endif |
9faacb92 | 1582 | |
f135c692 | 1583 | #ifdef SH_ARCH_MAGIC_BIG |
9783e04a | 1584 | case bfd_arch_sh: |
f135c692 ILT |
1585 | if (abfd->xvec->byteorder_big_p) |
1586 | *magicp = SH_ARCH_MAGIC_BIG; | |
1587 | else | |
1588 | *magicp = SH_ARCH_MAGIC_LITTLE; | |
9faacb92 SC |
1589 | return true; |
1590 | break; | |
1591 | #endif | |
1592 | ||
c188b0be | 1593 | #ifdef SPARCMAGIC |
9783e04a DM |
1594 | case bfd_arch_sparc: |
1595 | *magicp = SPARCMAGIC; | |
c188b0be | 1596 | #ifdef LYNXOS |
9783e04a DM |
1597 | /* Just overwrite the usual value if we're doing Lynx. */ |
1598 | *magicp = LYNXCOFFMAGIC; | |
c188b0be | 1599 | #endif |
9783e04a DM |
1600 | return true; |
1601 | break; | |
c188b0be DM |
1602 | #endif |
1603 | ||
142ce43e SC |
1604 | #ifdef H8500MAGIC |
1605 | case bfd_arch_h8500: | |
1606 | *magicp = H8500MAGIC; | |
1607 | return true; | |
1608 | break; | |
1609 | #endif | |
41f50af0 | 1610 | #ifdef A29K_MAGIC_BIG |
3b4f1a5d SC |
1611 | case bfd_arch_a29k: |
1612 | if (abfd->xvec->byteorder_big_p) | |
9783e04a | 1613 | *magicp = A29K_MAGIC_BIG; |
3b4f1a5d | 1614 | else |
9783e04a | 1615 | *magicp = A29K_MAGIC_LITTLE; |
3b4f1a5d SC |
1616 | return true; |
1617 | break; | |
41f50af0 | 1618 | #endif |
cbdc7909 | 1619 | |
dc999ad9 | 1620 | #ifdef WE32KMAGIC |
9783e04a DM |
1621 | case bfd_arch_we32k: |
1622 | *magicp = WE32KMAGIC; | |
1623 | return true; | |
1624 | break; | |
dc999ad9 ILT |
1625 | #endif |
1626 | ||
cbdc7909 | 1627 | #ifdef U802TOCMAGIC |
9783e04a | 1628 | case bfd_arch_rs6000: |
80b2dd82 | 1629 | #ifndef PPCMAGIC |
09a28207 | 1630 | case bfd_arch_powerpc: |
80b2dd82 | 1631 | #endif |
9783e04a DM |
1632 | *magicp = U802TOCMAGIC; |
1633 | return true; | |
1634 | break; | |
cbdc7909 JG |
1635 | #endif |
1636 | ||
9783e04a DM |
1637 | default: /* Unknown architecture */ |
1638 | /* return false; -- fall through to "return false" below, to avoid | |
cbdc7909 | 1639 | "statement never reached" errors on the one below. */ |
9783e04a DM |
1640 | break; |
1641 | } | |
cbdc7909 | 1642 | |
6f715d66 SC |
1643 | return false; |
1644 | } | |
0f268757 SC |
1645 | |
1646 | ||
9783e04a | 1647 | static boolean |
57a1867e DM |
1648 | coff_set_arch_mach (abfd, arch, machine) |
1649 | bfd * abfd; | |
1650 | enum bfd_architecture arch; | |
1651 | unsigned long machine; | |
6f715d66 | 1652 | { |
9783e04a DM |
1653 | unsigned dummy1; |
1654 | unsigned short dummy2; | |
c16313f0 ILT |
1655 | |
1656 | if (! bfd_default_set_arch_mach (abfd, arch, machine)) | |
1657 | return false; | |
0d740984 SC |
1658 | |
1659 | if (arch != bfd_arch_unknown && | |
9783e04a | 1660 | coff_set_flags (abfd, &dummy1, &dummy2) != true) |
0d740984 | 1661 | return false; /* We can't represent this type */ |
c16313f0 | 1662 | |
0d740984 SC |
1663 | return true; /* We're easy ... */ |
1664 | } | |
0f268757 SC |
1665 | |
1666 | ||
1667 | /* Calculate the file position for each section. */ | |
1668 | ||
cbdc7909 | 1669 | static void |
57a1867e DM |
1670 | coff_compute_section_file_positions (abfd) |
1671 | bfd * abfd; | |
6f715d66 | 1672 | { |
9783e04a DM |
1673 | asection *current; |
1674 | asection *previous = (asection *) NULL; | |
1675 | file_ptr sofar = FILHSZ; | |
275143eb | 1676 | |
55c95b04 | 1677 | #ifndef I960 |
9783e04a | 1678 | file_ptr old_sofar; |
55c95b04 | 1679 | #endif |
69645d10 ILT |
1680 | unsigned int count; |
1681 | ||
c7f6ebe2 | 1682 | |
3ea928f5 | 1683 | #ifdef COFF_IMAGE_WITH_PE |
275143eb | 1684 | int page_size; |
c7f6ebe2 SC |
1685 | if (coff_data (abfd)->link_info) |
1686 | { | |
beee31b1 | 1687 | page_size = pe_data (abfd)->pe_opthdr.FileAlignment; |
c7f6ebe2 SC |
1688 | } |
1689 | else | |
1690 | page_size = PE_DEF_FILE_ALIGNMENT; | |
275143eb SC |
1691 | #elif defined (COFF_PAGE_SIZE) |
1692 | int page_size = COFF_PAGE_SIZE; | |
3ea928f5 | 1693 | #endif |
275143eb | 1694 | |
9783e04a DM |
1695 | if (bfd_get_start_address (abfd)) |
1696 | { | |
1697 | /* A start address may have been added to the original file. In this | |
c7f6ebe2 | 1698 | case it will need an optional header to record it. */ |
9783e04a DM |
1699 | abfd->flags |= EXEC_P; |
1700 | } | |
85e0c721 | 1701 | |
e98e6ec1 | 1702 | if (abfd->flags & EXEC_P) |
9783e04a | 1703 | sofar += AOUTSZ; |
cbdc7909 | 1704 | |
e98e6ec1 | 1705 | sofar += abfd->section_count * SCNHSZ; |
69645d10 | 1706 | for (current = abfd->sections, count = 1; |
9783e04a | 1707 | current != (asection *) NULL; |
69645d10 | 1708 | current = current->next, ++count) |
9783e04a | 1709 | { |
69645d10 | 1710 | current->target_index = count; |
cbdc7909 | 1711 | |
e98e6ec1 SC |
1712 | /* Only deal with sections which have contents */ |
1713 | if (!(current->flags & SEC_HAS_CONTENTS)) | |
9783e04a | 1714 | continue; |
cbdc7909 | 1715 | |
89665c85 SC |
1716 | #ifdef COFF_WITH_PE |
1717 | /* Do not include the .junk section. This is where we collect section | |
1718 | data which we don't need. This is mainly the MS .debug$ data which | |
1719 | stores codeview debug data. */ | |
1720 | if (strcmp (current->name, ".junk") == 0) | |
1721 | { | |
c7f6ebe2 | 1722 | continue; |
89665c85 SC |
1723 | } |
1724 | #endif | |
1725 | ||
e98e6ec1 SC |
1726 | /* Align the sections in the file to the same boundary on |
1727 | which they are aligned in virtual memory. I960 doesn't | |
1728 | do this (FIXME) so we can stay in sync with Intel. 960 | |
1729 | doesn't yet page from files... */ | |
0f268757 | 1730 | #ifndef I960 |
9783e04a DM |
1731 | { |
1732 | /* make sure this section is aligned on the right boundary - by | |
c7f6ebe2 | 1733 | padding the previous section up if necessary */ |
e98e6ec1 | 1734 | |
9783e04a DM |
1735 | old_sofar = sofar; |
1736 | sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); | |
1737 | if (previous != (asection *) NULL) | |
1738 | { | |
1739 | previous->_raw_size += sofar - old_sofar; | |
1740 | } | |
1741 | } | |
85e0c721 | 1742 | |
0f268757 | 1743 | #endif |
b5b056fc | 1744 | |
b5b056fc KR |
1745 | /* In demand paged files the low order bits of the file offset |
1746 | must match the low order bits of the virtual address. */ | |
275143eb | 1747 | #ifdef COFF_PAGE_SIZE |
e8fbe6d9 ILT |
1748 | if ((abfd->flags & D_PAGED) != 0 |
1749 | && (current->flags & SEC_ALLOC) != 0) | |
3ea928f5 | 1750 | sofar += (current->vma - sofar) % page_size; |
275143eb | 1751 | #endif |
e98e6ec1 | 1752 | current->filepos = sofar; |
85e0c721 | 1753 | |
beee31b1 SC |
1754 | #ifdef COFF_IMAGE_WITH_PE |
1755 | /* With PE we have to pad each section to be a multiple of its page size | |
1756 | too, and remember both sizes. Cooked_size becomes very useful. */ | |
1757 | current->_cooked_size = current->_raw_size; | |
1758 | current->_raw_size = (current->_raw_size + page_size -1) & -page_size; | |
1759 | #endif | |
1760 | ||
5e167886 | 1761 | sofar += current->_raw_size; |
beee31b1 | 1762 | |
5e167886 | 1763 | #ifndef I960 |
e98e6ec1 | 1764 | /* make sure that this section is of the right size too */ |
9783e04a DM |
1765 | old_sofar = sofar; |
1766 | sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); | |
1767 | current->_raw_size += sofar - old_sofar; | |
5e167886 | 1768 | #endif |
85e0c721 | 1769 | |
35d835c4 JK |
1770 | #ifdef _LIB |
1771 | /* Force .lib sections to start at zero. The vma is then | |
1772 | incremented in coff_set_section_contents. This is right for | |
1773 | SVR3.2. */ | |
1774 | if (strcmp (current->name, _LIB) == 0) | |
1775 | bfd_set_section_vma (abfd, current, 0); | |
1776 | #endif | |
1777 | ||
e98e6ec1 | 1778 | previous = current; |
85e0c721 | 1779 | } |
89665c85 | 1780 | |
9783e04a | 1781 | obj_relocbase (abfd) = sofar; |
69645d10 | 1782 | abfd->output_has_begun = true; |
89665c85 | 1783 | |
6f715d66 | 1784 | } |
0f268757 | 1785 | |
9783e04a DM |
1786 | #ifndef RS6000COFF_C |
1787 | ||
8070f29d KR |
1788 | /* If .file, .text, .data, .bss symbols are missing, add them. */ |
1789 | /* @@ Should we only be adding missing symbols, or overriding the aux | |
1790 | values for existing section symbols? */ | |
9783e04a | 1791 | static boolean |
8070f29d KR |
1792 | coff_add_missing_symbols (abfd) |
1793 | bfd *abfd; | |
1794 | { | |
1795 | unsigned int nsyms = bfd_get_symcount (abfd); | |
1796 | asymbol **sympp = abfd->outsymbols; | |
1797 | asymbol **sympp2; | |
1798 | unsigned int i; | |
1799 | int need_text = 1, need_data = 1, need_bss = 1, need_file = 1; | |
0f268757 | 1800 | |
8070f29d KR |
1801 | for (i = 0; i < nsyms; i++) |
1802 | { | |
1803 | coff_symbol_type *csym = coff_symbol_from (abfd, sympp[i]); | |
1804 | CONST char *name; | |
9783e04a | 1805 | if (csym) |
8070f29d | 1806 | { |
9783e04a DM |
1807 | /* only do this if there is a coff representation of the input |
1808 | symbol */ | |
1809 | if (csym->native && csym->native->u.syment.n_sclass == C_FILE) | |
1810 | { | |
1811 | need_file = 0; | |
1812 | continue; | |
1813 | } | |
1814 | name = csym->symbol.name; | |
1815 | if (!name) | |
1816 | continue; | |
1817 | if (!strcmp (name, _TEXT)) | |
1818 | need_text = 0; | |
97eb2f0c | 1819 | #ifdef APOLLO_M68 |
9783e04a DM |
1820 | else if (!strcmp (name, ".wtext")) |
1821 | need_text = 0; | |
97eb2f0c | 1822 | #endif |
9783e04a DM |
1823 | else if (!strcmp (name, _DATA)) |
1824 | need_data = 0; | |
1825 | else if (!strcmp (name, _BSS)) | |
1826 | need_bss = 0; | |
1827 | } | |
8070f29d KR |
1828 | } |
1829 | /* Now i == bfd_get_symcount (abfd). */ | |
1830 | /* @@ For now, don't deal with .file symbol. */ | |
1831 | need_file = 0; | |
1832 | ||
1833 | if (!need_text && !need_data && !need_bss && !need_file) | |
9783e04a | 1834 | return true; |
8070f29d | 1835 | nsyms += need_text + need_data + need_bss + need_file; |
9783e04a DM |
1836 | sympp2 = (asymbol **) bfd_alloc_by_size_t (abfd, nsyms * sizeof (asymbol *)); |
1837 | if (!sympp2) | |
1838 | { | |
57a1867e | 1839 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
1840 | return false; |
1841 | } | |
8070f29d KR |
1842 | memcpy (sympp2, sympp, i * sizeof (asymbol *)); |
1843 | if (need_file) | |
1844 | { | |
1845 | /* @@ Generate fake .file symbol, in sympp2[i], and increment i. */ | |
1846 | abort (); | |
1847 | } | |
1848 | if (need_text) | |
1849 | sympp2[i++] = coff_section_symbol (abfd, _TEXT); | |
1850 | if (need_data) | |
1851 | sympp2[i++] = coff_section_symbol (abfd, _DATA); | |
1852 | if (need_bss) | |
1853 | sympp2[i++] = coff_section_symbol (abfd, _BSS); | |
9465d03e | 1854 | BFD_ASSERT (i == nsyms); |
8070f29d | 1855 | bfd_set_symtab (abfd, sympp2, nsyms); |
9783e04a | 1856 | return true; |
8070f29d | 1857 | } |
0f268757 | 1858 | |
9783e04a DM |
1859 | #endif /* ! defined (RS6000COFF_C) */ |
1860 | ||
e9614321 | 1861 | |
89665c85 | 1862 | |
0f268757 SC |
1863 | /* SUPPRESS 558 */ |
1864 | /* SUPPRESS 529 */ | |
9783e04a | 1865 | static boolean |
57a1867e DM |
1866 | coff_write_object_contents (abfd) |
1867 | bfd * abfd; | |
e98e6ec1 | 1868 | { |
9783e04a | 1869 | asection *current; |
9783e04a DM |
1870 | boolean hasrelocs = false; |
1871 | boolean haslinno = false; | |
1872 | file_ptr reloc_base; | |
1873 | file_ptr lineno_base; | |
1874 | file_ptr sym_base; | |
9783e04a DM |
1875 | unsigned long reloc_size = 0; |
1876 | unsigned long lnno_size = 0; | |
1877 | asection *text_sec = NULL; | |
1878 | asection *data_sec = NULL; | |
1879 | asection *bss_sec = NULL; | |
cbdc7909 | 1880 | |
e98e6ec1 SC |
1881 | struct internal_filehdr internal_f; |
1882 | struct internal_aouthdr internal_a; | |
cbdc7909 | 1883 | |
57a1867e | 1884 | bfd_set_error (bfd_error_system_call); |
6590a8c9 | 1885 | |
9783e04a | 1886 | if (abfd->output_has_begun == false) |
69645d10 | 1887 | coff_compute_section_file_positions (abfd); |
cbdc7909 | 1888 | |
9783e04a | 1889 | reloc_base = obj_relocbase (abfd); |
cbdc7909 | 1890 | |
0f268757 SC |
1891 | /* Make a pass through the symbol table to count line number entries and |
1892 | put them into the correct asections */ | |
cbdc7909 | 1893 | |
9783e04a | 1894 | lnno_size = coff_count_linenumbers (abfd) * LINESZ; |
cbdc7909 | 1895 | |
0f268757 | 1896 | /* Work out the size of the reloc and linno areas */ |
cbdc7909 | 1897 | |
e98e6ec1 | 1898 | for (current = abfd->sections; current != NULL; current = |
9783e04a | 1899 | current->next) |
69645d10 | 1900 | reloc_size += current->reloc_count * RELSZ; |
cbdc7909 | 1901 | |
0f268757 SC |
1902 | lineno_base = reloc_base + reloc_size; |
1903 | sym_base = lineno_base + lnno_size; | |
cbdc7909 | 1904 | |
0f268757 | 1905 | /* Indicate in each section->line_filepos its actual file address */ |
e98e6ec1 | 1906 | for (current = abfd->sections; current != NULL; current = |
9783e04a | 1907 | current->next) |
e98e6ec1 | 1908 | { |
69645d10 | 1909 | if (current->lineno_count) |
9783e04a | 1910 | { |
69645d10 ILT |
1911 | current->line_filepos = lineno_base; |
1912 | current->moving_line_filepos = lineno_base; | |
1913 | lineno_base += current->lineno_count * LINESZ; | |
1914 | } | |
1915 | else | |
1916 | { | |
1917 | current->line_filepos = 0; | |
1918 | } | |
1919 | if (current->reloc_count) | |
1920 | { | |
1921 | current->rel_filepos = reloc_base; | |
1922 | reloc_base += current->reloc_count * RELSZ; | |
1923 | } | |
1924 | else | |
1925 | { | |
1926 | current->rel_filepos = 0; | |
e98e6ec1 | 1927 | } |
0f268757 | 1928 | } |
9783e04a | 1929 | |
e98e6ec1 SC |
1930 | /* Write section headers to the file. */ |
1931 | internal_f.f_nscns = 0; | |
89665c85 | 1932 | |
791a3db4 ILT |
1933 | if (bfd_seek (abfd, |
1934 | (file_ptr) ((abfd->flags & EXEC_P) ? | |
3332ea9c SC |
1935 | (FILHSZ + AOUTSZ) : FILHSZ), |
1936 | SEEK_SET) != 0) | |
1937 | return false; | |
cbdc7909 | 1938 | |
3332ea9c SC |
1939 | for (current = abfd->sections; |
1940 | current != NULL; | |
1941 | current = current->next) | |
1942 | { | |
1943 | struct internal_scnhdr section; | |
69645d10 | 1944 | |
89665c85 | 1945 | #ifdef COFF_WITH_PE |
3332ea9c SC |
1946 | /* Do not include the .junk section. This is where we collect section |
1947 | data which we don't need. This is mainly the MS .debug$ data which | |
1948 | stores codeview debug data. */ | |
1949 | if (strcmp (current->name, ".junk") == 0) | |
1950 | { | |
1951 | continue; | |
1952 | } | |
beee31b1 SC |
1953 | |
1954 | /* If we've got a .reloc section, remember. */ | |
1955 | ||
1956 | if (strcmp (current->name, ".reloc") == 0) | |
1957 | { | |
1958 | pe_data (abfd)->has_reloc_section = 1; | |
1959 | } | |
89665c85 | 1960 | #endif |
3332ea9c SC |
1961 | internal_f.f_nscns++; |
1962 | strncpy (&(section.s_name[0]), current->name, 8); | |
b26059aa | 1963 | #ifdef _LIB |
3332ea9c SC |
1964 | /* Always set s_vaddr of .lib to 0. This is right for SVR3.2 |
1965 | Ian Taylor <ian@cygnus.com>. */ | |
1966 | if (strcmp (current->name, _LIB) == 0) | |
1967 | section.s_vaddr = 0; | |
1968 | else | |
69645d10 | 1969 | #endif |
beee31b1 | 1970 | section.s_vaddr = current->lma; |
3332ea9c | 1971 | section.s_paddr = current->lma; |
beee31b1 SC |
1972 | section.s_size = current->_raw_size; |
1973 | ||
1974 | #ifdef COFF_WITH_PE | |
1975 | section.s_paddr = current->_cooked_size; | |
1976 | #endif | |
3332ea9c SC |
1977 | |
1978 | /* | |
1979 | If this section has no size or is unloadable then the scnptr | |
1980 | will be 0 too | |
1981 | */ | |
1982 | if (current->_raw_size == 0 || | |
1983 | (current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
1984 | { | |
1985 | section.s_scnptr = 0; | |
1986 | } | |
1987 | else | |
1988 | { | |
1989 | section.s_scnptr = current->filepos; | |
1990 | } | |
1991 | section.s_relptr = current->rel_filepos; | |
1992 | section.s_lnnoptr = current->line_filepos; | |
1993 | section.s_nreloc = current->reloc_count; | |
1994 | section.s_nlnno = current->lineno_count; | |
1995 | if (current->reloc_count != 0) | |
1996 | hasrelocs = true; | |
1997 | if (current->lineno_count != 0) | |
1998 | haslinno = true; | |
1999 | ||
2000 | section.s_flags = sec_to_styp_flags (current->name, current->flags); | |
2001 | ||
2002 | if (!strcmp (current->name, _TEXT)) | |
2003 | { | |
2004 | text_sec = current; | |
2005 | } | |
2006 | else if (!strcmp (current->name, _DATA)) | |
2007 | { | |
2008 | data_sec = current; | |
3332ea9c SC |
2009 | } |
2010 | else if (!strcmp (current->name, _BSS)) | |
2011 | { | |
2012 | bss_sec = current; | |
2013 | } | |
cbdc7909 | 2014 | |
0f268757 | 2015 | #ifdef I960 |
3332ea9c SC |
2016 | section.s_align = (current->alignment_power |
2017 | ? 1 << current->alignment_power | |
2018 | : 0); | |
2019 | ||
2020 | #endif | |
0f268757 | 2021 | |
3332ea9c SC |
2022 | #ifdef COFF_IMAGE_WITH_PE |
2023 | /* suppress output of the sections if they are null. ld includes | |
2024 | the bss and data sections even if there is no size assigned | |
2025 | to them. NT loader doesn't like it if these section headers are | |
2026 | included if the sections themselves are not needed */ | |
2027 | if (section.s_size == 0) | |
2028 | internal_f.f_nscns--; | |
2029 | else | |
0f268757 | 2030 | #endif |
69645d10 ILT |
2031 | { |
2032 | SCNHDR buff; | |
3332ea9c SC |
2033 | if (coff_swap_scnhdr_out (abfd, §ion, &buff) == 0 |
2034 | || bfd_write ((PTR) (&buff), 1, SCNHSZ, abfd) != SCNHSZ) | |
2035 | return false; | |
69645d10 | 2036 | } |
3332ea9c SC |
2037 | } |
2038 | ||
e98e6ec1 | 2039 | |
0f268757 SC |
2040 | |
2041 | /* OK, now set up the filehdr... */ | |
e98e6ec1 SC |
2042 | |
2043 | /* Don't include the internal abs section in the section count */ | |
2044 | ||
0f268757 | 2045 | /* |
89665c85 SC |
2046 | We will NOT put a fucking timestamp in the header here. Every time you |
2047 | put it back, I will come in and take it out again. I'm sorry. This | |
2048 | field does not belong here. We fill it with a 0 so it compares the | |
2049 | same but is not a reasonable time. -- gnu@cygnus.com | |
2050 | */ | |
5944d75b | 2051 | internal_f.f_timdat = 0; |
0f268757 | 2052 | |
0f268757 SC |
2053 | internal_f.f_flags = 0; |
2054 | ||
2055 | if (abfd->flags & EXEC_P) | |
9783e04a | 2056 | internal_f.f_opthdr = AOUTSZ; |
0f268757 | 2057 | else |
9783e04a | 2058 | internal_f.f_opthdr = 0; |
0f268757 SC |
2059 | |
2060 | if (!hasrelocs) | |
9783e04a | 2061 | internal_f.f_flags |= F_RELFLG; |
0f268757 | 2062 | if (!haslinno) |
9783e04a | 2063 | internal_f.f_flags |= F_LNNO; |
0f268757 | 2064 | if (abfd->flags & EXEC_P) |
9783e04a | 2065 | internal_f.f_flags |= F_EXEC; |
a0f3f080 | 2066 | |
0f268757 | 2067 | if (!abfd->xvec->byteorder_big_p) |
9783e04a DM |
2068 | internal_f.f_flags |= F_AR32WR; |
2069 | else | |
2070 | internal_f.f_flags |= F_AR32W; | |
a0f3f080 | 2071 | |
0f268757 | 2072 | /* |
89665c85 SC |
2073 | FIXME, should do something about the other byte orders and |
2074 | architectures. | |
2075 | */ | |
0f268757 | 2076 | |
5f710a3a ILT |
2077 | #ifdef RS6000COFF_C |
2078 | if ((abfd->flags & DYNAMIC) != 0) | |
2079 | internal_f.f_flags |= F_SHROBJ; | |
2080 | if (bfd_get_section_by_name (abfd, _LOADER) != NULL) | |
2081 | internal_f.f_flags |= F_DYNLOAD; | |
2082 | #endif | |
2083 | ||
ab31ae53 KR |
2084 | memset (&internal_a, 0, sizeof internal_a); |
2085 | ||
0f268757 SC |
2086 | /* Set up architecture-dependent stuff */ |
2087 | ||
9783e04a DM |
2088 | { |
2089 | unsigned int magic = 0; | |
2090 | unsigned short flags = 0; | |
2091 | coff_set_flags (abfd, &magic, &flags); | |
2092 | internal_f.f_magic = magic; | |
2093 | internal_f.f_flags |= flags; | |
2094 | /* ...and the "opt"hdr... */ | |
0f268757 | 2095 | |
cbdc7909 | 2096 | #ifdef A29K |
9783e04a DM |
2097 | #ifdef ULTRA3 /* NYU's machine */ |
2098 | /* FIXME: This is a bogus check. I really want to see if there | |
89665c85 SC |
2099 | * is a .shbss or a .shdata section, if so then set the magic |
2100 | * number to indicate a shared data executable. | |
2101 | */ | |
9783e04a | 2102 | if (internal_f.f_nscns >= 7) |
89665c85 | 2103 | internal_a.magic = SHMAGIC; /* Shared magic */ |
9783e04a DM |
2104 | else |
2105 | #endif /* ULTRA3 */ | |
89665c85 | 2106 | internal_a.magic = NMAGIC; /* Assume separate i/d */ |
41f50af0 | 2107 | #define __A_MAGIC_SET__ |
9783e04a | 2108 | #endif /* A29K */ |
0f268757 | 2109 | #ifdef I960 |
9783e04a | 2110 | internal_a.magic = (magic == I960ROMAGIC ? NMAGIC : OMAGIC); |
41f50af0 | 2111 | #define __A_MAGIC_SET__ |
9783e04a | 2112 | #endif /* I960 */ |
0f268757 | 2113 | #if M88 |
41f50af0 | 2114 | #define __A_MAGIC_SET__ |
9783e04a DM |
2115 | internal_a.magic = PAGEMAGICBCS; |
2116 | #endif /* M88 */ | |
41f50af0 | 2117 | |
97eb2f0c KR |
2118 | #if APOLLO_M68 |
2119 | #define __A_MAGIC_SET__ | |
9783e04a | 2120 | internal_a.magic = APOLLO_COFF_VERSION_NUMBER; |
97eb2f0c KR |
2121 | #endif |
2122 | ||
e8fbe6d9 | 2123 | #if defined(M68) || defined(WE32K) || defined(M68K) |
41f50af0 | 2124 | #define __A_MAGIC_SET__ |
e8fbe6d9 ILT |
2125 | #if defined(LYNXOS) |
2126 | internal_a.magic = LYNXCOFFMAGIC; | |
89665c85 SC |
2127 | #endif /* LYNXOS */ |
2128 | #endif /* M68 || WE32K || M68K */ | |
8ad2a31d | 2129 | |
89665c85 SC |
2130 | #if defined(ARM) |
2131 | #define __A_MAGIC_SET__ | |
2132 | internal_a.magic = ZMAGIC; | |
2133 | #endif | |
80b2dd82 KK |
2134 | #if defined(PPC) |
2135 | #define __A_MAGIC_SET__ | |
2136 | internal_a.magic = PPCMAGIC; | |
2137 | #endif | |
e8fbe6d9 | 2138 | #if defined(I386) |
9783e04a | 2139 | #define __A_MAGIC_SET__ |
e8fbe6d9 ILT |
2140 | #if defined(LYNXOS) |
2141 | internal_a.magic = LYNXCOFFMAGIC; | |
89665c85 | 2142 | #else /* LYNXOS */ |
9783e04a | 2143 | internal_a.magic = ZMAGIC; |
e8fbe6d9 | 2144 | #endif /* LYNXOS */ |
8ad2a31d | 2145 | #endif /* I386 */ |
41f50af0 | 2146 | |
e8fbe6d9 ILT |
2147 | #if defined(SPARC) |
2148 | #define __A_MAGIC_SET__ | |
2149 | #if defined(LYNXOS) | |
89665c85 SC |
2150 | internal_a.magic = LYNXCOFFMAGIC; |
2151 | #endif /* LYNXOS */ | |
2152 | #endif /* SPARC */ | |
e8fbe6d9 | 2153 | |
cbdc7909 JG |
2154 | #if RS6000COFF_C |
2155 | #define __A_MAGIC_SET__ | |
9783e04a | 2156 | internal_a.magic = (abfd->flags & D_PAGED) ? RS6K_AOUTHDR_ZMAGIC : |
89665c85 SC |
2157 | (abfd->flags & WP_TEXT) ? RS6K_AOUTHDR_NMAGIC : |
2158 | RS6K_AOUTHDR_OMAGIC; | |
cbdc7909 JG |
2159 | #endif |
2160 | ||
41f50af0 | 2161 | #ifndef __A_MAGIC_SET__ |
9783e04a | 2162 | #include "Your aouthdr magic number is not being set!" |
41f50af0 | 2163 | #else |
9783e04a | 2164 | #undef __A_MAGIC_SET__ |
0f268757 | 2165 | #endif |
9783e04a | 2166 | } |
e18c4e8f ILT |
2167 | |
2168 | /* FIXME: Does anybody ever set this to another value? */ | |
2169 | internal_a.vstamp = 0; | |
2170 | ||
0f268757 | 2171 | /* Now should write relocs, strings, syms */ |
9783e04a DM |
2172 | obj_sym_filepos (abfd) = sym_base; |
2173 | ||
2174 | if (bfd_get_symcount (abfd) != 0) | |
2175 | { | |
89665c85 | 2176 | int firstundef; |
9783e04a DM |
2177 | #ifndef RS6000COFF_C |
2178 | if (!coff_add_missing_symbols (abfd)) | |
2179 | return false; | |
2180 | #endif | |
89665c85 | 2181 | if (!coff_renumber_symbols (abfd, &firstundef)) |
9783e04a DM |
2182 | return false; |
2183 | coff_mangle_symbols (abfd); | |
bfe8224f ILT |
2184 | if (! coff_write_symbols (abfd)) |
2185 | return false; | |
791a3db4 ILT |
2186 | if (! coff_write_linenumbers (abfd)) |
2187 | return false; | |
89665c85 | 2188 | if (! coff_write_relocs (abfd, firstundef)) |
9783e04a | 2189 | return false; |
e98e6ec1 | 2190 | } |
6ceff8e7 ILT |
2191 | |
2192 | /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF | |
2193 | backend linker, and obj_raw_syment_count is not valid until after | |
2194 | coff_write_symbols is called. */ | |
2195 | if (obj_raw_syment_count (abfd) != 0) | |
7860fe38 ILT |
2196 | { |
2197 | internal_f.f_symptr = sym_base; | |
2198 | #ifdef RS6000COFF_C | |
2199 | /* AIX appears to require that F_RELFLG not be set if there are | |
2200 | local symbols but no relocations. */ | |
2201 | internal_f.f_flags &=~ F_RELFLG; | |
2202 | #endif | |
2203 | } | |
6ceff8e7 ILT |
2204 | else |
2205 | { | |
2206 | internal_f.f_symptr = 0; | |
2207 | internal_f.f_flags |= F_LSYMS; | |
2208 | } | |
2209 | ||
9783e04a DM |
2210 | if (text_sec) |
2211 | { | |
2212 | internal_a.tsize = bfd_get_section_size_before_reloc (text_sec); | |
e9614321 | 2213 | internal_a.text_start = internal_a.tsize ? text_sec->vma : 0; |
e98e6ec1 | 2214 | } |
9783e04a DM |
2215 | if (data_sec) |
2216 | { | |
2217 | internal_a.dsize = bfd_get_section_size_before_reloc (data_sec); | |
e9614321 | 2218 | internal_a.data_start = internal_a.dsize ? data_sec->vma : 0; |
e98e6ec1 | 2219 | } |
9783e04a DM |
2220 | if (bss_sec) |
2221 | { | |
2222 | internal_a.bsize = bfd_get_section_size_before_reloc (bss_sec); | |
e98e6ec1 | 2223 | } |
0f268757 | 2224 | |
e9614321 | 2225 | internal_a.entry = bfd_get_start_address (abfd); |
69645d10 | 2226 | internal_f.f_nsyms = obj_raw_syment_count (abfd); |
0f268757 | 2227 | |
5f710a3a ILT |
2228 | #ifdef RS6000COFF_C |
2229 | if ((abfd->flags & EXEC_P) != 0) | |
2230 | { | |
2231 | bfd_vma entry, toc; | |
2232 | asection *loader_sec; | |
2233 | ||
2234 | entry = bfd_get_start_address (abfd); | |
2235 | if (text_sec != NULL | |
2236 | && entry >= text_sec->vma | |
2237 | && entry < text_sec->vma + bfd_section_size (abfd, text_sec)) | |
2238 | internal_a.o_snentry = text_sec->target_index; | |
2239 | else if (data_sec != NULL | |
2240 | && entry >= data_sec->vma | |
2241 | && entry < data_sec->vma + bfd_section_size (abfd, data_sec)) | |
2242 | internal_a.o_snentry = data_sec->target_index; | |
2243 | else | |
2244 | internal_a.o_snentry = 0; | |
2245 | if (text_sec != NULL) | |
2246 | { | |
2247 | internal_a.o_sntext = text_sec->target_index; | |
2248 | internal_a.o_algntext = bfd_get_section_alignment (abfd, text_sec); | |
2249 | } | |
2250 | else | |
2251 | { | |
2252 | internal_a.o_sntext = 0; | |
2253 | internal_a.o_algntext = 0; | |
2254 | } | |
2255 | if (data_sec != NULL) | |
2256 | { | |
2257 | internal_a.o_sndata = data_sec->target_index; | |
2258 | internal_a.o_algndata = bfd_get_section_alignment (abfd, data_sec); | |
2259 | } | |
2260 | else | |
2261 | { | |
2262 | internal_a.o_sndata = 0; | |
2263 | internal_a.o_algndata = 0; | |
2264 | } | |
2265 | loader_sec = bfd_get_section_by_name (abfd, ".loader"); | |
2266 | if (loader_sec != NULL) | |
2267 | internal_a.o_snloader = loader_sec->target_index; | |
2268 | else | |
2269 | internal_a.o_snloader = 0; | |
2270 | if (bss_sec != NULL) | |
2271 | internal_a.o_snbss = bss_sec->target_index; | |
2272 | else | |
2273 | internal_a.o_snbss = 0; | |
2274 | ||
2275 | toc = xcoff_data (abfd)->toc; | |
2276 | internal_a.o_toc = toc; | |
2277 | if (text_sec != NULL | |
2278 | && toc >= text_sec->vma | |
2279 | && toc < text_sec->vma + bfd_section_size (abfd, text_sec)) | |
2280 | internal_a.o_sntoc = text_sec->target_index; | |
2281 | else if (data_sec != NULL | |
2282 | && toc >= data_sec->vma | |
2283 | && toc < data_sec->vma + bfd_section_size (abfd, data_sec)) | |
2284 | internal_a.o_sntoc = data_sec->target_index; | |
2285 | else | |
2286 | internal_a.o_sntoc = 0; | |
2287 | ||
2288 | internal_a.o_modtype = xcoff_data (abfd)->modtype; | |
2289 | internal_a.o_maxstack = xcoff_data (abfd)->maxstack; | |
2290 | internal_a.o_maxdata = xcoff_data (abfd)->maxdata; | |
2291 | } | |
2292 | #endif | |
2293 | ||
0f268757 | 2294 | /* now write them */ |
9783e04a DM |
2295 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) |
2296 | return false; | |
2297 | { | |
2298 | FILHDR buff; | |
2299 | coff_swap_filehdr_out (abfd, (PTR) & internal_f, (PTR) & buff); | |
791a3db4 ILT |
2300 | if (bfd_write ((PTR) & buff, 1, FILHSZ, abfd) != FILHSZ) |
2301 | return false; | |
9783e04a DM |
2302 | } |
2303 | if (abfd->flags & EXEC_P) | |
2304 | { | |
e98e6ec1 | 2305 | AOUTHDR buff; |
9783e04a | 2306 | coff_swap_aouthdr_out (abfd, (PTR) & internal_a, (PTR) & buff); |
791a3db4 ILT |
2307 | if (bfd_write ((PTR) & buff, 1, AOUTSZ, abfd) != AOUTSZ) |
2308 | return false; | |
e98e6ec1 | 2309 | } |
89665c85 | 2310 | |
0f268757 | 2311 | return true; |
6f715d66 SC |
2312 | } |
2313 | ||
9783e04a | 2314 | static boolean |
57a1867e DM |
2315 | coff_set_section_contents (abfd, section, location, offset, count) |
2316 | bfd * abfd; | |
2317 | sec_ptr section; | |
2318 | PTR location; | |
2319 | file_ptr offset; | |
2320 | bfd_size_type count; | |
0f268757 | 2321 | { |
9783e04a DM |
2322 | if (abfd->output_has_begun == false) /* set by bfd.c handler */ |
2323 | coff_compute_section_file_positions (abfd); | |
cbdc7909 | 2324 | |
075caafd | 2325 | #ifdef _LIB |
9783e04a | 2326 | /* If this is a .lib section, bump the vma address so that it |
075caafd ILT |
2327 | winds up being the number of .lib sections output. This is |
2328 | right for SVR3.2. Shared libraries should probably get more | |
2329 | generic support. Ian Taylor <ian@cygnus.com>. */ | |
9783e04a DM |
2330 | if (strcmp (section->name, _LIB) == 0) |
2331 | ++section->lma; | |
075caafd | 2332 | #endif |
0f268757 | 2333 | |
9783e04a DM |
2334 | /* Don't write out bss sections - one way to do this is to |
2335 | see if the filepos has not been set. */ | |
2336 | if (section->filepos == 0) | |
2337 | return true; | |
55c95b04 | 2338 | |
791a3db4 ILT |
2339 | if (bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET) != 0) |
2340 | return false; | |
7a8b18b6 | 2341 | |
9783e04a DM |
2342 | if (count != 0) |
2343 | { | |
2344 | return (bfd_write (location, 1, count, abfd) == count) ? true : false; | |
075caafd | 2345 | } |
9783e04a | 2346 | return true; |
075caafd ILT |
2347 | } |
2348 | #if 0 | |
9783e04a DM |
2349 | static boolean |
2350 | coff_close_and_cleanup (abfd) | |
2351 | bfd *abfd; | |
0f268757 | 2352 | { |
9783e04a DM |
2353 | if (!bfd_read_p (abfd)) |
2354 | switch (abfd->format) | |
2355 | { | |
2356 | case bfd_archive: | |
2357 | if (!_bfd_write_archive_contents (abfd)) | |
2358 | return false; | |
2359 | break; | |
2360 | case bfd_object: | |
2361 | if (!coff_write_object_contents (abfd)) | |
2362 | return false; | |
2363 | break; | |
2364 | default: | |
57a1867e | 2365 | bfd_set_error (bfd_error_invalid_operation); |
075caafd | 2366 | return false; |
9783e04a | 2367 | } |
075caafd ILT |
2368 | |
2369 | /* We depend on bfd_close to free all the memory on the obstack. */ | |
2370 | /* FIXME if bfd_release is not using obstacks! */ | |
2371 | return true; | |
0f268757 SC |
2372 | } |
2373 | ||
075caafd ILT |
2374 | #endif |
2375 | ||
2376 | static PTR | |
9783e04a DM |
2377 | buy_and_read (abfd, where, seek_direction, size) |
2378 | bfd *abfd; | |
2379 | file_ptr where; | |
2380 | int seek_direction; | |
2381 | size_t size; | |
075caafd | 2382 | { |
9783e04a DM |
2383 | PTR area = (PTR) bfd_alloc (abfd, size); |
2384 | if (!area) | |
2385 | { | |
57a1867e | 2386 | bfd_set_error (bfd_error_no_memory); |
9783e04a | 2387 | return (NULL); |
075caafd | 2388 | } |
791a3db4 ILT |
2389 | if (bfd_seek (abfd, where, seek_direction) != 0 |
2390 | || bfd_read (area, 1, size, abfd) != size) | |
2391 | return (NULL); | |
9783e04a | 2392 | return (area); |
075caafd | 2393 | } /* buy_and_read() */ |
0f268757 | 2394 | |
9fda1a39 | 2395 | /* |
9783e04a | 2396 | SUBSUBSECTION |
c188b0be | 2397 | Reading linenumbers |
9fda1a39 | 2398 | |
9fda1a39 SC |
2399 | Creating the linenumber table is done by reading in the entire |
2400 | coff linenumber table, and creating another table for internal use. | |
6f715d66 | 2401 | |
c188b0be | 2402 | A coff linenumber table is structured so that each function |
9fda1a39 SC |
2403 | is marked as having a line number of 0. Each line within the |
2404 | function is an offset from the first line in the function. The | |
2405 | base of the line number information for the table is stored in | |
9783e04a | 2406 | the symbol associated with the function. |
6f715d66 | 2407 | |
9fda1a39 SC |
2408 | The information is copied from the external to the internal |
2409 | table, and each symbol which marks a function is marked by | |
2410 | pointing its... | |
6f715d66 | 2411 | |
9fda1a39 | 2412 | How does this work ? |
6f715d66 SC |
2413 | |
2414 | */ | |
0f268757 SC |
2415 | |
2416 | static boolean | |
9783e04a | 2417 | coff_slurp_line_table (abfd, asect) |
ab31ae53 KR |
2418 | bfd *abfd; |
2419 | asection *asect; | |
2420 | { | |
9783e04a | 2421 | LINENO *native_lineno; |
ab31ae53 KR |
2422 | alent *lineno_cache; |
2423 | ||
9783e04a | 2424 | BFD_ASSERT (asect->lineno == (alent *) NULL); |
ab31ae53 | 2425 | |
9783e04a DM |
2426 | native_lineno = (LINENO *) buy_and_read (abfd, |
2427 | asect->line_filepos, | |
2428 | SEEK_SET, | |
2429 | (size_t) (LINESZ * | |
2430 | asect->lineno_count)); | |
ab31ae53 | 2431 | lineno_cache = |
9783e04a | 2432 | (alent *) bfd_alloc (abfd, (size_t) ((asect->lineno_count + 1) * sizeof (alent))); |
ab31ae53 KR |
2433 | if (lineno_cache == NULL) |
2434 | { | |
57a1867e | 2435 | bfd_set_error (bfd_error_no_memory); |
0f268757 | 2436 | return false; |
ab31ae53 KR |
2437 | } |
2438 | else | |
2439 | { | |
9783e04a DM |
2440 | unsigned int counter = 0; |
2441 | alent *cache_ptr = lineno_cache; | |
2442 | LINENO *src = native_lineno; | |
cbdc7909 | 2443 | |
ab31ae53 KR |
2444 | while (counter < asect->lineno_count) |
2445 | { | |
2446 | struct internal_lineno dst; | |
9783e04a | 2447 | coff_swap_lineno_in (abfd, src, &dst); |
ab31ae53 KR |
2448 | cache_ptr->line_number = dst.l_lnno; |
2449 | ||
2450 | if (cache_ptr->line_number == 0) | |
2451 | { | |
2452 | coff_symbol_type *sym = | |
9783e04a DM |
2453 | (coff_symbol_type *) (dst.l_addr.l_symndx |
2454 | + obj_raw_syments (abfd))->u.syment._n._n_n._n_zeroes; | |
ab31ae53 KR |
2455 | cache_ptr->u.sym = (asymbol *) sym; |
2456 | sym->lineno = cache_ptr; | |
2457 | } | |
2458 | else | |
2459 | { | |
2460 | cache_ptr->u.offset = dst.l_addr.l_paddr | |
9783e04a DM |
2461 | - bfd_section_vma (abfd, asect); |
2462 | } /* If no linenumber expect a symbol index */ | |
ab31ae53 KR |
2463 | |
2464 | cache_ptr++; | |
2465 | src++; | |
2466 | counter++; | |
0f268757 | 2467 | } |
0f268757 | 2468 | cache_ptr->line_number = 0; |
cbdc7909 | 2469 | |
0f268757 | 2470 | } |
ab31ae53 KR |
2471 | asect->lineno = lineno_cache; |
2472 | /* FIXME, free native_lineno here, or use alloca or something. */ | |
2473 | return true; | |
2474 | } | |
0f268757 | 2475 | |
ab31ae53 | 2476 | static boolean |
57a1867e DM |
2477 | coff_slurp_symbol_table (abfd) |
2478 | bfd * abfd; | |
6f715d66 | 2479 | { |
9783e04a | 2480 | combined_entry_type *native_symbols; |
6f715d66 | 2481 | coff_symbol_type *cached_area; |
9783e04a | 2482 | unsigned int *table_ptr; |
cbdc7909 | 2483 | |
9783e04a | 2484 | unsigned int number_of_symbols = 0; |
89665c85 | 2485 | |
9783e04a | 2486 | if (obj_symbols (abfd)) |
6f715d66 | 2487 | return true; |
cbdc7909 | 2488 | |
6f715d66 | 2489 | /* Read in the symbol table */ |
9783e04a DM |
2490 | if ((native_symbols = coff_get_normalized_symtab (abfd)) == NULL) |
2491 | { | |
2492 | return (false); | |
2493 | } /* on error */ | |
cbdc7909 | 2494 | |
6f715d66 | 2495 | /* Allocate enough room for all the symbols in cached form */ |
69645d10 ILT |
2496 | cached_area = ((coff_symbol_type *) |
2497 | bfd_alloc (abfd, | |
2498 | (obj_raw_syment_count (abfd) | |
2499 | * sizeof (coff_symbol_type)))); | |
cbdc7909 | 2500 | |
9783e04a DM |
2501 | if (cached_area == NULL) |
2502 | { | |
57a1867e | 2503 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
2504 | return false; |
2505 | } /* on error */ | |
69645d10 ILT |
2506 | table_ptr = ((unsigned int *) |
2507 | bfd_alloc (abfd, | |
2508 | (obj_raw_syment_count (abfd) | |
2509 | * sizeof (unsigned int)))); | |
cbdc7909 | 2510 | |
9783e04a DM |
2511 | if (table_ptr == NULL) |
2512 | { | |
57a1867e | 2513 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
2514 | return false; |
2515 | } | |
2516 | else | |
2517 | { | |
2518 | coff_symbol_type *dst = cached_area; | |
69645d10 | 2519 | unsigned int last_native_index = obj_raw_syment_count (abfd); |
9783e04a DM |
2520 | unsigned int this_index = 0; |
2521 | while (this_index < last_native_index) | |
2522 | { | |
2523 | combined_entry_type *src = native_symbols + this_index; | |
2524 | table_ptr[this_index] = number_of_symbols; | |
2525 | dst->symbol.the_bfd = abfd; | |
2526 | ||
2527 | dst->symbol.name = (char *) (src->u.syment._n._n_n._n_offset); | |
2528 | /* We use the native name field to point to the cached field. */ | |
2529 | src->u.syment._n._n_n._n_zeroes = (long) dst; | |
2530 | dst->symbol.section = coff_section_from_bfd_index (abfd, | |
2531 | src->u.syment.n_scnum); | |
2532 | dst->symbol.flags = 0; | |
2533 | dst->done_lineno = false; | |
2534 | ||
2535 | switch (src->u.syment.n_sclass) | |
2536 | { | |
0f268757 | 2537 | #ifdef I960 |
9783e04a | 2538 | case C_LEAFEXT: |
0f268757 | 2539 | #if 0 |
9783e04a DM |
2540 | dst->symbol.value = src->u.syment.n_value - dst->symbol.section->vma; |
2541 | dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL; | |
c7e76b5e | 2542 | dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION; |
0f268757 | 2543 | #endif |
9783e04a | 2544 | /* Fall through to next case */ |
cbdc7909 | 2545 | |
0f268757 | 2546 | #endif |
cbdc7909 | 2547 | |
9783e04a | 2548 | case C_EXT: |
cbdc7909 | 2549 | #ifdef RS6000COFF_C |
9783e04a | 2550 | case C_HIDEXT: |
89665c85 SC |
2551 | #endif |
2552 | #ifdef COFF_WITH_PE | |
2553 | /* PE uses storage class 0x68 to denote a section symbol */ | |
2554 | case C_SECTION: | |
9783e04a DM |
2555 | #endif |
2556 | if ((src->u.syment.n_scnum) == 0) | |
2557 | { | |
2558 | if ((src->u.syment.n_value) == 0) | |
2559 | { | |
b5b056fc | 2560 | dst->symbol.section = bfd_und_section_ptr; |
9783e04a DM |
2561 | dst->symbol.value = 0; |
2562 | } | |
2563 | else | |
2564 | { | |
b5b056fc | 2565 | dst->symbol.section = bfd_com_section_ptr; |
9783e04a DM |
2566 | dst->symbol.value = (src->u.syment.n_value); |
2567 | } | |
2568 | } | |
2569 | else | |
2570 | { | |
e7cac9de ILT |
2571 | /* Base the value as an index from the base of the |
2572 | section */ | |
e98e6ec1 | 2573 | |
9783e04a | 2574 | dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL; |
e7cac9de ILT |
2575 | dst->symbol.value = (src->u.syment.n_value |
2576 | - dst->symbol.section->vma); | |
e98e6ec1 | 2577 | |
9783e04a DM |
2578 | if (ISFCN ((src->u.syment.n_type))) |
2579 | { | |
e7cac9de ILT |
2580 | /* A function ext does not go at the end of a |
2581 | file. */ | |
c7e76b5e | 2582 | dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION; |
9783e04a DM |
2583 | } |
2584 | } | |
85e0c721 | 2585 | |
9783e04a | 2586 | #ifdef RS6000COFF_C |
e7cac9de ILT |
2587 | /* A C_HIDEXT symbol is not global. */ |
2588 | if (src->u.syment.n_sclass == C_HIDEXT) | |
2589 | dst->symbol.flags = BSF_LOCAL; | |
5f710a3a | 2590 | /* A symbol with a csect entry should not go at the end. */ |
3f2c5b2d | 2591 | if (src->u.syment.n_numaux > 0) |
5f710a3a | 2592 | dst->symbol.flags |= BSF_NOT_AT_END; |
9783e04a DM |
2593 | #endif |
2594 | ||
2595 | break; | |
2596 | ||
2597 | case C_STAT: /* static */ | |
0f268757 | 2598 | #ifdef I960 |
9783e04a DM |
2599 | case C_LEAFSTAT: /* static leaf procedure */ |
2600 | #endif | |
2601 | case C_LABEL: /* label */ | |
2602 | if (src->u.syment.n_scnum == -2) | |
2603 | dst->symbol.flags = BSF_DEBUGGING; | |
2604 | else | |
2605 | dst->symbol.flags = BSF_LOCAL; | |
2606 | /* | |
0d740984 SC |
2607 | Base the value as an index from the base of the section, if |
2608 | there is one | |
6f715d66 | 2609 | */ |
9783e04a DM |
2610 | if (dst->symbol.section) |
2611 | dst->symbol.value = (src->u.syment.n_value) - | |
2612 | dst->symbol.section->vma; | |
2613 | else | |
2614 | dst->symbol.value = (src->u.syment.n_value); | |
2615 | break; | |
2616 | ||
2617 | case C_MOS: /* member of structure */ | |
2618 | case C_EOS: /* end of structure */ | |
2619 | #ifdef NOTDEF /* C_AUTOARG has the same value */ | |
41f50af0 | 2620 | #ifdef C_GLBLREG |
9783e04a | 2621 | case C_GLBLREG: /* A29k-specific storage class */ |
41f50af0 SC |
2622 | #endif |
2623 | #endif | |
9783e04a DM |
2624 | case C_REGPARM: /* register parameter */ |
2625 | case C_REG: /* register variable */ | |
0f268757 | 2626 | #ifdef C_AUTOARG |
9783e04a DM |
2627 | case C_AUTOARG: /* 960-specific storage class */ |
2628 | #endif | |
2629 | case C_TPDEF: /* type definition */ | |
2630 | case C_ARG: | |
2631 | case C_AUTO: /* automatic variable */ | |
2632 | case C_FIELD: /* bit field */ | |
2633 | case C_ENTAG: /* enumeration tag */ | |
2634 | case C_MOE: /* member of enumeration */ | |
2635 | case C_MOU: /* member of union */ | |
2636 | case C_UNTAG: /* union tag */ | |
2637 | dst->symbol.flags = BSF_DEBUGGING; | |
2638 | dst->symbol.value = (src->u.syment.n_value); | |
2639 | break; | |
2640 | ||
2641 | case C_FILE: /* file name */ | |
2642 | case C_STRTAG: /* structure tag */ | |
cbdc7909 | 2643 | #ifdef RS6000COFF_C |
9783e04a DM |
2644 | case C_BINCL: /* beginning of include file */ |
2645 | case C_EINCL: /* ending of include file */ | |
2646 | case C_GSYM: | |
2647 | case C_LSYM: | |
2648 | case C_PSYM: | |
2649 | case C_RSYM: | |
2650 | case C_RPSYM: | |
2651 | case C_STSYM: | |
2652 | case C_DECL: | |
2653 | case C_ENTRY: | |
2654 | case C_FUN: | |
2655 | case C_ESTAT: | |
2656 | #endif | |
2657 | dst->symbol.flags = BSF_DEBUGGING; | |
2658 | dst->symbol.value = (src->u.syment.n_value); | |
2659 | break; | |
cbdc7909 | 2660 | |
9783e04a DM |
2661 | #ifdef RS6000COFF_C |
2662 | case C_BSTAT: | |
2663 | dst->symbol.flags = BSF_DEBUGGING; | |
2664 | dst->symbol.value = src->u.syment.n_value; | |
2665 | ||
3f2c5b2d ILT |
2666 | /* The value is actually a symbol index. Save a pointer |
2667 | to the symbol instead of the index. FIXME: This | |
2668 | should use a union. */ | |
9783e04a DM |
2669 | src->u.syment.n_value = |
2670 | (long) (native_symbols + src->u.syment.n_value); | |
2671 | src->fix_value = 1; | |
2672 | break; | |
2673 | #endif | |
2674 | ||
2675 | case C_BLOCK: /* ".bb" or ".eb" */ | |
2676 | case C_FCN: /* ".bf" or ".ef" */ | |
2677 | case C_EFCN: /* physical end of function */ | |
2678 | dst->symbol.flags = BSF_LOCAL; | |
2679 | /* | |
6f715d66 SC |
2680 | Base the value as an index from the base of the section |
2681 | */ | |
9783e04a DM |
2682 | dst->symbol.value = (src->u.syment.n_value) - dst->symbol.section->vma; |
2683 | break; | |
2684 | ||
2685 | case C_NULL: | |
2686 | case C_EXTDEF: /* external definition */ | |
2687 | case C_ULABEL: /* undefined label */ | |
2688 | case C_USTATIC: /* undefined static */ | |
89665c85 SC |
2689 | #ifndef COFF_WITH_PE |
2690 | /* C_LINE in regular coff is 0x68. NT has taken over this storage | |
2691 | class to represent a section symbol */ | |
9783e04a | 2692 | case C_LINE: /* line # reformatted as symbol table entry */ |
89665c85 | 2693 | #endif |
9783e04a DM |
2694 | case C_ALIAS: /* duplicate tag */ |
2695 | case C_HIDDEN: /* ext symbol in dmert public lib */ | |
2696 | default: | |
7a7fbffb ILT |
2697 | (*_bfd_error_handler) |
2698 | ("%s: Unrecognized storage class %d for %s symbol `%s'", | |
2699 | bfd_get_filename (abfd), src->u.syment.n_sclass, | |
2700 | dst->symbol.section->name, dst->symbol.name); | |
9783e04a DM |
2701 | dst->symbol.flags = BSF_DEBUGGING; |
2702 | dst->symbol.value = (src->u.syment.n_value); | |
2703 | break; | |
2704 | } | |
cbdc7909 | 2705 | |
6590a8c9 | 2706 | /* BFD_ASSERT(dst->symbol.flags != 0);*/ |
cbdc7909 | 2707 | |
9783e04a | 2708 | dst->native = src; |
cbdc7909 | 2709 | |
f135c692 | 2710 | dst->symbol.udata.i = 0; |
9783e04a DM |
2711 | dst->lineno = (alent *) NULL; |
2712 | this_index += (src->u.syment.n_numaux) + 1; | |
2713 | dst++; | |
2714 | number_of_symbols++; | |
2715 | } /* walk the native symtab */ | |
2716 | } /* bfdize the native symtab */ | |
cbdc7909 | 2717 | |
9783e04a DM |
2718 | obj_symbols (abfd) = cached_area; |
2719 | obj_raw_syments (abfd) = native_symbols; | |
cbdc7909 | 2720 | |
9783e04a DM |
2721 | bfd_get_symcount (abfd) = number_of_symbols; |
2722 | obj_convert (abfd) = table_ptr; | |
6f715d66 | 2723 | /* Slurp the line tables for each section too */ |
9783e04a DM |
2724 | { |
2725 | asection *p; | |
2726 | p = abfd->sections; | |
2727 | while (p) | |
2728 | { | |
2729 | coff_slurp_line_table (abfd, p); | |
6f715d66 | 2730 | p = p->next; |
0f268757 | 2731 | } |
9783e04a | 2732 | } |
6f715d66 SC |
2733 | return true; |
2734 | } /* coff_slurp_symbol_table() */ | |
0f268757 | 2735 | |
69645d10 ILT |
2736 | /* Check whether a symbol is globally visible. This is used by the |
2737 | COFF backend linker code in cofflink.c, since a couple of targets | |
2738 | have globally visible symbols which are not class C_EXT. This | |
2739 | function need not handle the case of n_class == C_EXT. */ | |
2740 | ||
2741 | #undef OTHER_GLOBAL_CLASS | |
2742 | ||
2743 | #ifdef I960 | |
2744 | #define OTHER_GLOBAL_CLASS C_LEAFEXT | |
2745 | #endif | |
2746 | ||
89665c85 SC |
2747 | #ifdef COFF_WITH_PE |
2748 | #define OTHER_GLOBAL_CLASS C_SECTION | |
2749 | #endif | |
2750 | ||
69645d10 ILT |
2751 | #ifdef OTHER_GLOBAL_CLASS |
2752 | ||
2753 | static boolean | |
2754 | coff_sym_is_global (abfd, syment) | |
2755 | bfd *abfd; | |
2756 | struct internal_syment *syment; | |
2757 | { | |
2758 | if (syment->n_sclass == OTHER_GLOBAL_CLASS) | |
2759 | return true; | |
2760 | return false; | |
2761 | } | |
2762 | ||
2763 | #undef OTHER_GLOBAL_CLASS | |
2764 | ||
2765 | #else /* ! defined (OTHER_GLOBAL_CLASS) */ | |
2766 | ||
2767 | /* sym_is_global should not be defined if it has nothing to do. */ | |
2768 | ||
2769 | #define coff_sym_is_global 0 | |
2770 | ||
2771 | #endif /* ! defined (OTHER_GLOBAL_CLASS) */ | |
2772 | ||
9fda1a39 | 2773 | /* |
9783e04a | 2774 | SUBSUBSECTION |
c188b0be | 2775 | Reading relocations |
9fda1a39 | 2776 | |
9fda1a39 SC |
2777 | Coff relocations are easily transformed into the internal BFD form |
2778 | (@code{arelent}). | |
2779 | ||
2780 | Reading a coff relocation table is done in the following stages: | |
2781 | ||
c188b0be | 2782 | o Read the entire coff relocation table into memory. |
9fda1a39 | 2783 | |
c188b0be | 2784 | o Process each relocation in turn; first swap it from the |
9fda1a39 SC |
2785 | external to the internal form. |
2786 | ||
c188b0be DM |
2787 | o Turn the symbol referenced in the relocation's symbol index |
2788 | into a pointer into the canonical symbol table. | |
2789 | This table is the same as the one returned by a call to | |
2790 | @code{bfd_canonicalize_symtab}. The back end will call that | |
9fda1a39 SC |
2791 | routine and save the result if a canonicalization hasn't been done. |
2792 | ||
2793 | o The reloc index is turned into a pointer to a howto | |
2794 | structure, in a back end specific way. For instance, the 386 | |
2795 | and 960 use the @code{r_type} to directly produce an index | |
2796 | into a howto table vector; the 88k subtracts a number from the | |
2797 | @code{r_type} field and creates an addend field. | |
2798 | ||
2799 | ||
6f715d66 SC |
2800 | */ |
2801 | ||
3b4f1a5d | 2802 | #ifndef CALC_ADDEND |
492d52cc ILT |
2803 | #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \ |
2804 | { \ | |
2805 | coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \ | |
2806 | if (ptr && bfd_asymbol_bfd (ptr) != abfd) \ | |
2807 | coffsym = (obj_symbols (abfd) \ | |
2808 | + (cache_ptr->sym_ptr_ptr - symbols)); \ | |
2809 | else if (ptr) \ | |
2810 | coffsym = coff_symbol_from (abfd, ptr); \ | |
2811 | if (coffsym != (coff_symbol_type *) NULL \ | |
2812 | && coffsym->native->u.syment.n_scnum == 0) \ | |
2813 | cache_ptr->addend = 0; \ | |
2814 | else if (ptr && bfd_asymbol_bfd (ptr) == abfd \ | |
2815 | && ptr->section != (asection *) NULL) \ | |
2816 | cache_ptr->addend = - (ptr->section->vma + ptr->value); \ | |
2817 | else \ | |
2818 | cache_ptr->addend = 0; \ | |
2819 | } | |
3b4f1a5d SC |
2820 | #endif |
2821 | ||
9783e04a | 2822 | static boolean |
57a1867e DM |
2823 | coff_slurp_reloc_table (abfd, asect, symbols) |
2824 | bfd * abfd; | |
2825 | sec_ptr asect; | |
2826 | asymbol ** symbols; | |
85e0c721 | 2827 | { |
9783e04a DM |
2828 | RELOC *native_relocs; |
2829 | arelent *reloc_cache; | |
2830 | arelent *cache_ptr; | |
3b4f1a5d SC |
2831 | |
2832 | unsigned int idx; | |
9783e04a | 2833 | |
3b4f1a5d | 2834 | if (asect->relocation) |
9783e04a | 2835 | return true; |
3b4f1a5d | 2836 | if (asect->reloc_count == 0) |
9783e04a | 2837 | return true; |
3b4f1a5d | 2838 | if (asect->flags & SEC_CONSTRUCTOR) |
9783e04a DM |
2839 | return true; |
2840 | if (!coff_slurp_symbol_table (abfd)) | |
2841 | return false; | |
3b4f1a5d | 2842 | native_relocs = |
9783e04a DM |
2843 | (RELOC *) buy_and_read (abfd, |
2844 | asect->rel_filepos, | |
2845 | SEEK_SET, | |
2846 | (size_t) (RELSZ * | |
2847 | asect->reloc_count)); | |
3b4f1a5d | 2848 | reloc_cache = (arelent *) |
9783e04a | 2849 | bfd_alloc (abfd, (size_t) (asect->reloc_count * sizeof (arelent))); |
3b4f1a5d | 2850 | |
9783e04a DM |
2851 | if (reloc_cache == NULL) |
2852 | { | |
57a1867e | 2853 | bfd_set_error (bfd_error_no_memory); |
3b4f1a5d | 2854 | return false; |
9783e04a | 2855 | } |
3b4f1a5d | 2856 | |
9783e04a DM |
2857 | |
2858 | for (idx = 0; idx < asect->reloc_count; idx++) | |
2859 | { | |
616ebcfd | 2860 | #ifdef RELOC_PROCESSING |
3b4f1a5d | 2861 | struct internal_reloc dst; |
9783e04a | 2862 | struct external_reloc *src; |
3b4f1a5d SC |
2863 | |
2864 | cache_ptr = reloc_cache + idx; | |
2865 | src = native_relocs + idx; | |
69645d10 | 2866 | coff_swap_reloc_in (abfd, src, &dst); |
3b4f1a5d | 2867 | |
9783e04a | 2868 | RELOC_PROCESSING (cache_ptr, &dst, symbols, abfd, asect); |
9898b929 | 2869 | #else |
616ebcfd | 2870 | struct internal_reloc dst; |
9783e04a DM |
2871 | asymbol *ptr; |
2872 | struct external_reloc *src; | |
616ebcfd SC |
2873 | |
2874 | cache_ptr = reloc_cache + idx; | |
2875 | src = native_relocs + idx; | |
2876 | ||
69645d10 | 2877 | coff_swap_reloc_in (abfd, src, &dst); |
616ebcfd | 2878 | |
9898b929 JG |
2879 | |
2880 | cache_ptr->address = dst.r_vaddr; | |
2881 | ||
9783e04a | 2882 | if (dst.r_symndx != -1) |
8070f29d KR |
2883 | { |
2884 | /* @@ Should never be greater than count of symbols! */ | |
2885 | if (dst.r_symndx >= obj_conv_table_size (abfd)) | |
2886 | abort (); | |
9783e04a | 2887 | cache_ptr->sym_ptr_ptr = symbols + obj_convert (abfd)[dst.r_symndx]; |
9898b929 | 2888 | ptr = *(cache_ptr->sym_ptr_ptr); |
8070f29d | 2889 | } |
9783e04a | 2890 | else |
8070f29d | 2891 | { |
b5b056fc | 2892 | cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; |
8070f29d KR |
2893 | ptr = 0; |
2894 | } | |
85e0c721 | 2895 | |
cd83759c KR |
2896 | /* The symbols definitions that we have read in have been |
2897 | relocated as if their sections started at 0. But the offsets | |
2898 | refering to the symbols in the raw data have not been | |
2899 | modified, so we have to have a negative addend to compensate. | |
2900 | ||
2901 | Note that symbols which used to be common must be left alone */ | |
cbdc7909 | 2902 | |
3b4f1a5d | 2903 | /* Calculate any reloc addend by looking at the symbol */ |
9783e04a | 2904 | CALC_ADDEND (abfd, ptr, dst, cache_ptr); |
cbdc7909 | 2905 | |
3b4f1a5d | 2906 | cache_ptr->address -= asect->vma; |
e98e6ec1 | 2907 | /* !! cache_ptr->section = (asection *) NULL;*/ |
20fdc627 | 2908 | |
3b4f1a5d | 2909 | /* Fill in the cache_ptr->howto field from dst.r_type */ |
9783e04a | 2910 | RTYPE2HOWTO (cache_ptr, &dst); |
9898b929 JG |
2911 | #endif |
2912 | ||
9783e04a | 2913 | } |
cbdc7909 | 2914 | |
3b4f1a5d SC |
2915 | asect->relocation = reloc_cache; |
2916 | return true; | |
85e0c721 | 2917 | } |
0f268757 | 2918 | |
f135c692 ILT |
2919 | #ifndef coff_rtype_to_howto |
2920 | #ifdef RTYPE2HOWTO | |
2921 | ||
2922 | /* Get the howto structure for a reloc. This is only used if the file | |
2923 | including this one defines coff_relocate_section to be | |
2924 | _bfd_coff_generic_relocate_section, so it is OK if it does not | |
2925 | always work. It is the responsibility of the including file to | |
2926 | make sure it is reasonable if it is needed. */ | |
2927 | ||
2928 | static reloc_howto_type *coff_rtype_to_howto | |
2929 | PARAMS ((bfd *, asection *, struct internal_reloc *, | |
2930 | struct coff_link_hash_entry *, struct internal_syment *, | |
2931 | bfd_vma *)); | |
2932 | ||
2933 | /*ARGSUSED*/ | |
2934 | static reloc_howto_type * | |
2935 | coff_rtype_to_howto (abfd, sec, rel, h, sym, addendp) | |
2936 | bfd *abfd; | |
2937 | asection *sec; | |
2938 | struct internal_reloc *rel; | |
2939 | struct coff_link_hash_entry *h; | |
2940 | struct internal_syment *sym; | |
2941 | bfd_vma *addendp; | |
2942 | { | |
2943 | arelent genrel; | |
2944 | ||
2945 | RTYPE2HOWTO (&genrel, rel); | |
2946 | return genrel.howto; | |
2947 | } | |
2948 | ||
2949 | #else /* ! defined (RTYPE2HOWTO) */ | |
2950 | ||
2951 | #define coff_rtype_to_howto NULL | |
2952 | ||
2953 | #endif /* ! defined (RTYPE2HOWTO) */ | |
2954 | #endif /* ! defined (coff_rtype_to_howto) */ | |
0f268757 | 2955 | |
cd83759c | 2956 | /* This is stupid. This function should be a boolean predicate. */ |
326e32d7 | 2957 | static long |
57a1867e DM |
2958 | coff_canonicalize_reloc (abfd, section, relptr, symbols) |
2959 | bfd * abfd; | |
2960 | sec_ptr section; | |
2961 | arelent ** relptr; | |
2962 | asymbol ** symbols; | |
85e0c721 | 2963 | { |
9783e04a DM |
2964 | arelent *tblptr = section->relocation; |
2965 | unsigned int count = 0; | |
cbdc7909 | 2966 | |
cbdc7909 | 2967 | |
9783e04a DM |
2968 | if (section->flags & SEC_CONSTRUCTOR) |
2969 | { | |
2970 | /* this section has relocs made up by us, they are not in the | |
e98e6ec1 SC |
2971 | file, so take them out of their chain and place them into |
2972 | the data area provided */ | |
9783e04a DM |
2973 | arelent_chain *chain = section->constructor_chain; |
2974 | for (count = 0; count < section->reloc_count; count++) | |
2975 | { | |
2976 | *relptr++ = &chain->relent; | |
2977 | chain = chain->next; | |
2978 | } | |
e98e6ec1 | 2979 | |
9783e04a DM |
2980 | } |
2981 | else | |
2982 | { | |
326e32d7 ILT |
2983 | if (! coff_slurp_reloc_table (abfd, section, symbols)) |
2984 | return -1; | |
85e0c721 | 2985 | |
9783e04a | 2986 | tblptr = section->relocation; |
85e0c721 | 2987 | |
9783e04a DM |
2988 | for (; count++ < section->reloc_count;) |
2989 | *relptr++ = tblptr++; | |
cbdc7909 | 2990 | |
85e0c721 | 2991 | |
9783e04a | 2992 | } |
e98e6ec1 SC |
2993 | *relptr = 0; |
2994 | return section->reloc_count; | |
85e0c721 | 2995 | } |
0f268757 | 2996 | |
0f268757 SC |
2997 | #ifdef GNU960 |
2998 | file_ptr | |
9783e04a DM |
2999 | coff_sym_filepos (abfd) |
3000 | bfd *abfd; | |
3001 | { | |
3002 | return obj_sym_filepos (abfd); | |
3003 | } | |
0f268757 SC |
3004 | #endif |
3005 | ||
fbb61b50 SC |
3006 | #ifndef coff_reloc16_estimate |
3007 | #define coff_reloc16_estimate dummy_reloc16_estimate | |
3008 | ||
56775366 | 3009 | static int |
09a28207 ILT |
3010 | dummy_reloc16_estimate (abfd, input_section, reloc, shrink, link_info) |
3011 | bfd *abfd; | |
fbb61b50 | 3012 | asection *input_section; |
fbb61b50 | 3013 | arelent *reloc; |
56775366 | 3014 | unsigned int shrink; |
330595d0 | 3015 | struct bfd_link_info *link_info; |
fbb61b50 | 3016 | { |
56775366 | 3017 | abort (); |
fbb61b50 SC |
3018 | } |
3019 | ||
3020 | #endif | |
3021 | ||
075caafd | 3022 | #ifndef coff_reloc16_extra_cases |
9e768fa2 JK |
3023 | #define coff_reloc16_extra_cases dummy_reloc16_extra_cases |
3024 | /* This works even if abort is not declared in any header file. */ | |
4d09e8ac | 3025 | static void |
330595d0 ILT |
3026 | dummy_reloc16_extra_cases (abfd, link_info, link_order, reloc, data, src_ptr, |
3027 | dst_ptr) | |
9e768fa2 | 3028 | bfd *abfd; |
330595d0 ILT |
3029 | struct bfd_link_info *link_info; |
3030 | struct bfd_link_order *link_order; | |
9e768fa2 JK |
3031 | arelent *reloc; |
3032 | bfd_byte *data; | |
3033 | unsigned int *src_ptr; | |
3034 | unsigned int *dst_ptr; | |
3035 | { | |
3036 | abort (); | |
3037 | } | |
8ad2a31d | 3038 | #endif |
6590a8c9 | 3039 | |
69645d10 ILT |
3040 | /* If coff_relocate_section is defined, we can use the optimized COFF |
3041 | backend linker. Otherwise we must continue to use the old linker. */ | |
3042 | #ifdef coff_relocate_section | |
f135c692 | 3043 | #ifndef coff_bfd_link_hash_table_create |
69645d10 | 3044 | #define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create |
f135c692 ILT |
3045 | #endif |
3046 | #ifndef coff_bfd_link_add_symbols | |
69645d10 | 3047 | #define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols |
f135c692 ILT |
3048 | #endif |
3049 | #ifndef coff_bfd_final_link | |
69645d10 | 3050 | #define coff_bfd_final_link _bfd_coff_final_link |
f135c692 | 3051 | #endif |
69645d10 ILT |
3052 | #else /* ! defined (coff_relocate_section) */ |
3053 | #define coff_relocate_section NULL | |
3054 | #define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create | |
3055 | #define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols | |
3056 | #define coff_bfd_final_link _bfd_generic_final_link | |
3057 | #endif /* ! defined (coff_relocate_section) */ | |
89665c85 | 3058 | #define coff_bfd_link_split_section _bfd_generic_link_split_section |
69645d10 | 3059 | |
a208a70f ILT |
3060 | #ifndef coff_start_final_link |
3061 | #define coff_start_final_link NULL | |
3062 | #endif | |
3063 | ||
f135c692 ILT |
3064 | #ifndef coff_adjust_symndx |
3065 | #define coff_adjust_symndx NULL | |
3066 | #endif | |
3067 | ||
9783e04a DM |
3068 | static CONST bfd_coff_backend_data bfd_coff_std_swap_table = |
3069 | { | |
3070 | coff_swap_aux_in, coff_swap_sym_in, coff_swap_lineno_in, | |
3071 | coff_swap_aux_out, coff_swap_sym_out, | |
3072 | coff_swap_lineno_out, coff_swap_reloc_out, | |
3073 | coff_swap_filehdr_out, coff_swap_aouthdr_out, | |
3074 | coff_swap_scnhdr_out, | |
69645d10 | 3075 | FILHSZ, AOUTSZ, SCNHSZ, SYMESZ, AUXESZ, RELSZ, LINESZ, |
075caafd | 3076 | #ifdef COFF_LONG_FILENAMES |
9783e04a | 3077 | true, |
075caafd | 3078 | #else |
9783e04a | 3079 | false, |
07de8e96 | 3080 | #endif |
9783e04a | 3081 | coff_swap_filehdr_in, coff_swap_aouthdr_in, coff_swap_scnhdr_in, |
69645d10 | 3082 | coff_swap_reloc_in, coff_bad_format_hook, coff_set_arch_mach_hook, |
1af85fbb | 3083 | coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook, |
c80cc833 | 3084 | coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook, |
0fc9ada9 | 3085 | coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate, |
69645d10 | 3086 | coff_sym_is_global, coff_compute_section_file_positions, |
a208a70f ILT |
3087 | coff_start_final_link, coff_relocate_section, coff_rtype_to_howto, |
3088 | coff_adjust_symndx | |
075caafd | 3089 | }; |
0f268757 | 3090 | |
6812b607 ILT |
3091 | #define coff_close_and_cleanup _bfd_generic_close_and_cleanup |
3092 | #define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info | |
3093 | #define coff_get_section_contents _bfd_generic_get_section_contents | |
09a28207 | 3094 | |
db344f82 SC |
3095 | #ifndef coff_bfd_copy_private_symbol_data |
3096 | #define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data | |
3097 | #endif | |
3098 | ||
3099 | #ifndef coff_bfd_copy_private_section_data | |
3100 | #define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data | |
3101 | #endif | |
3102 | ||
3103 | #ifndef coff_bfd_copy_private_bfd_data | |
6812b607 | 3104 | #define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data |
db344f82 SC |
3105 | #endif |
3106 | ||
89665c85 SC |
3107 | #define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data |
3108 | #define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags | |
6812b607 | 3109 | |
beee31b1 | 3110 | #ifndef coff_bfd_print_private_bfd_data |
db344f82 | 3111 | #define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data |
beee31b1 SC |
3112 | #endif |
3113 | ||
09a28207 ILT |
3114 | #ifndef coff_bfd_is_local_label |
3115 | #define coff_bfd_is_local_label bfd_generic_is_local_label | |
3116 | #endif | |
e9614321 SC |
3117 | #ifndef coff_read_minisymbols |
3118 | #define coff_read_minisymbols _bfd_generic_read_minisymbols | |
3119 | #endif | |
3120 | #ifndef coff_minisymbol_to_symbol | |
3121 | #define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol | |
3122 | #endif | |
6812b607 ILT |
3123 | |
3124 | /* The reloc lookup routine must be supplied by each individual COFF | |
3125 | backend. */ | |
3126 | #ifndef coff_bfd_reloc_type_lookup | |
3127 | #define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup | |
3128 | #endif | |
3129 | ||
e9614321 | 3130 | #ifndef coff_bfd_get_relocated_section_contents |
6812b607 ILT |
3131 | #define coff_bfd_get_relocated_section_contents \ |
3132 | bfd_generic_get_relocated_section_contents | |
e9614321 SC |
3133 | #endif |
3134 | #ifndef coff_bfd_relax_section | |
6812b607 | 3135 | #define coff_bfd_relax_section bfd_generic_relax_section |
e9614321 | 3136 | #endif |