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6d7c88c3 | 1 | /* Support for the generic parts of most COFF variants, for BFD. |
d812945a | 2 | Copyright 1990, 91, 92, 93, 94, 95, 1996 Free Software Foundation, Inc. |
7a8b18b6 | 3 | Written by Cygnus Support. |
0f268757 | 4 | |
7a8b18b6 | 5 | This file is part of BFD, the Binary File Descriptor library. |
0f268757 | 6 | |
7a8b18b6 SC |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
0f268757 | 11 | |
7a8b18b6 SC |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
0f268757 | 16 | |
7a8b18b6 SC |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software | |
e9614321 | 19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
6f715d66 | 20 | |
9783e04a | 21 | /* |
6590a8c9 | 22 | Most of this hacked by Steve Chamberlain, |
9783e04a | 23 | sac@cygnus.com |
6590a8c9 | 24 | */ |
9fda1a39 | 25 | /* |
6f715d66 | 26 | |
9fda1a39 SC |
27 | SECTION |
28 | coff backends | |
29 | ||
9fda1a39 | 30 | BFD supports a number of different flavours of coff format. |
c188b0be | 31 | The major differences between formats are the sizes and |
9fda1a39 | 32 | alignments of fields in structures on disk, and the occasional |
9783e04a | 33 | extra field. |
9fda1a39 | 34 | |
c188b0be | 35 | Coff in all its varieties is implemented with a few common |
9fda1a39 SC |
36 | files and a number of implementation specific files. For |
37 | example, The 88k bcs coff format is implemented in the file | |
c188b0be DM |
38 | @file{coff-m88k.c}. This file @code{#include}s |
39 | @file{coff/m88k.h} which defines the external structure of the | |
40 | coff format for the 88k, and @file{coff/internal.h} which | |
41 | defines the internal structure. @file{coff-m88k.c} also | |
075caafd ILT |
42 | defines the relocations used by the 88k format |
43 | @xref{Relocations}. | |
9fda1a39 SC |
44 | |
45 | The Intel i960 processor version of coff is implemented in | |
c188b0be DM |
46 | @file{coff-i960.c}. This file has the same structure as |
47 | @file{coff-m88k.c}, except that it includes @file{coff/i960.h} | |
9783e04a | 48 | rather than @file{coff-m88k.h}. |
9fda1a39 SC |
49 | |
50 | SUBSECTION | |
c188b0be | 51 | Porting to a new version of coff |
9fda1a39 | 52 | |
9fda1a39 | 53 | The recommended method is to select from the existing |
c188b0be DM |
54 | implementations the version of coff which is most like the one |
55 | you want to use. For example, we'll say that i386 coff is | |
9fda1a39 | 56 | the one you select, and that your coff flavour is called foo. |
c188b0be DM |
57 | Copy @file{i386coff.c} to @file{foocoff.c}, copy |
58 | @file{../include/coff/i386.h} to @file{../include/coff/foo.h}, | |
59 | and add the lines to @file{targets.c} and @file{Makefile.in} | |
9fda1a39 | 60 | so that your new back end is used. Alter the shapes of the |
c188b0be | 61 | structures in @file{../include/coff/foo.h} so that they match |
9fda1a39 | 62 | what you need. You will probably also have to add |
c188b0be | 63 | @code{#ifdef}s to the code in @file{coff/internal.h} and |
9783e04a | 64 | @file{coffcode.h} if your version of coff is too wild. |
9fda1a39 SC |
65 | |
66 | You can verify that your new BFD backend works quite simply by | |
c188b0be DM |
67 | building @file{objdump} from the @file{binutils} directory, |
68 | and making sure that its version of what's going on and your | |
69 | host system's idea (assuming it has the pretty standard coff | |
70 | dump utility, usually called @code{att-dump} or just | |
71 | @code{dump}) are the same. Then clean up your code, and send | |
9fda1a39 SC |
72 | what you've done to Cygnus. Then your stuff will be in the |
73 | next release, and you won't have to keep integrating it. | |
74 | ||
75 | SUBSECTION | |
c188b0be | 76 | How the coff backend works |
9fda1a39 | 77 | |
075caafd | 78 | SUBSUBSECTION |
c188b0be | 79 | File layout |
075caafd ILT |
80 | |
81 | The Coff backend is split into generic routines that are | |
82 | applicable to any Coff target and routines that are specific | |
83 | to a particular target. The target-specific routines are | |
84 | further split into ones which are basically the same for all | |
85 | Coff targets except that they use the external symbol format | |
86 | or use different values for certain constants. | |
87 | ||
88 | The generic routines are in @file{coffgen.c}. These routines | |
89 | work for any Coff target. They use some hooks into the target | |
90 | specific code; the hooks are in a @code{bfd_coff_backend_data} | |
91 | structure, one of which exists for each target. | |
92 | ||
93 | The essentially similar target-specific routines are in | |
c188b0be | 94 | @file{coffcode.h}. This header file includes executable C code. |
075caafd ILT |
95 | The various Coff targets first include the appropriate Coff |
96 | header file, make any special defines that are needed, and | |
97 | then include @file{coffcode.h}. | |
98 | ||
99 | Some of the Coff targets then also have additional routines in | |
100 | the target source file itself. | |
101 | ||
102 | For example, @file{coff-i960.c} includes | |
103 | @file{coff/internal.h} and @file{coff/i960.h}. It then | |
104 | defines a few constants, such as @code{I960}, and includes | |
105 | @file{coffcode.h}. Since the i960 has complex relocation | |
106 | types, @file{coff-i960.c} also includes some code to | |
107 | manipulate the i960 relocs. This code is not in | |
108 | @file{coffcode.h} because it would not be used by any other | |
109 | target. | |
110 | ||
9fda1a39 | 111 | SUBSUBSECTION |
c188b0be | 112 | Bit twiddling |
9fda1a39 | 113 | |
9fda1a39 | 114 | Each flavour of coff supported in BFD has its own header file |
c188b0be DM |
115 | describing the external layout of the structures. There is also |
116 | an internal description of the coff layout, in | |
117 | @file{coff/internal.h}. A major function of the | |
9fda1a39 SC |
118 | coff backend is swapping the bytes and twiddling the bits to |
119 | translate the external form of the structures into the normal | |
120 | internal form. This is all performed in the | |
121 | @code{bfd_swap}_@i{thing}_@i{direction} routines. Some | |
122 | elements are different sizes between different versions of | |
c188b0be | 123 | coff; it is the duty of the coff version specific include file |
9fda1a39 | 124 | to override the definitions of various packing routines in |
c188b0be | 125 | @file{coffcode.h}. E.g., the size of line number entry in coff is |
9fda1a39 SC |
126 | sometimes 16 bits, and sometimes 32 bits. @code{#define}ing |
127 | @code{PUT_LNSZ_LNNO} and @code{GET_LNSZ_LNNO} will select the | |
128 | correct one. No doubt, some day someone will find a version of | |
c188b0be | 129 | coff which has a varying field size not catered to at the |
9783e04a | 130 | moment. To port BFD, that person will have to add more @code{#defines}. |
9fda1a39 SC |
131 | Three of the bit twiddling routines are exported to |
132 | @code{gdb}; @code{coff_swap_aux_in}, @code{coff_swap_sym_in} | |
133 | and @code{coff_swap_linno_in}. @code{GDB} reads the symbol | |
134 | table on its own, but uses BFD to fix things up. More of the | |
135 | bit twiddlers are exported for @code{gas}; | |
136 | @code{coff_swap_aux_out}, @code{coff_swap_sym_out}, | |
137 | @code{coff_swap_lineno_out}, @code{coff_swap_reloc_out}, | |
138 | @code{coff_swap_filehdr_out}, @code{coff_swap_aouthdr_out}, | |
139 | @code{coff_swap_scnhdr_out}. @code{Gas} currently keeps track | |
140 | of all the symbol table and reloc drudgery itself, thereby | |
141 | saving the internal BFD overhead, but uses BFD to swap things | |
c188b0be | 142 | on the way out, making cross ports much safer. Doing so also |
9fda1a39 SC |
143 | allows BFD (and thus the linker) to use the same header files |
144 | as @code{gas}, which makes one avenue to disaster disappear. | |
145 | ||
146 | SUBSUBSECTION | |
c188b0be | 147 | Symbol reading |
9fda1a39 | 148 | |
9fda1a39 SC |
149 | The simple canonical form for symbols used by BFD is not rich |
150 | enough to keep all the information available in a coff symbol | |
c188b0be | 151 | table. The back end gets around this problem by keeping the original |
9783e04a | 152 | symbol table around, "behind the scenes". |
9fda1a39 SC |
153 | |
154 | When a symbol table is requested (through a call to | |
c188b0be | 155 | @code{bfd_canonicalize_symtab}), a request gets through to |
075caafd | 156 | @code{coff_get_normalized_symtab}. This reads the symbol table from |
9fda1a39 SC |
157 | the coff file and swaps all the structures inside into the |
158 | internal form. It also fixes up all the pointers in the table | |
159 | (represented in the file by offsets from the first symbol in | |
160 | the table) into physical pointers to elements in the new | |
161 | internal table. This involves some work since the meanings of | |
c188b0be | 162 | fields change depending upon context: a field that is a |
9fda1a39 | 163 | pointer to another structure in the symbol table at one moment |
c188b0be | 164 | may be the size in bytes of a structure at the next. Another |
9fda1a39 | 165 | pass is made over the table. All symbols which mark file names |
616ebcfd | 166 | (<<C_FILE>> symbols) are modified so that the internal |
9fda1a39 SC |
167 | string points to the value in the auxent (the real filename) |
168 | rather than the normal text associated with the symbol | |
9783e04a | 169 | (@code{".file"}). |
9fda1a39 SC |
170 | |
171 | At this time the symbol names are moved around. Coff stores | |
172 | all symbols less than nine characters long physically | |
c188b0be | 173 | within the symbol table; longer strings are kept at the end of |
9fda1a39 | 174 | the file in the string table. This pass moves all strings |
c188b0be | 175 | into memory and replaces them with pointers to the strings. |
9fda1a39 SC |
176 | |
177 | ||
178 | The symbol table is massaged once again, this time to create | |
179 | the canonical table used by the BFD application. Each symbol | |
180 | is inspected in turn, and a decision made (using the | |
181 | @code{sclass} field) about the various flags to set in the | |
c188b0be | 182 | @code{asymbol}. @xref{Symbols}. The generated canonical table |
9783e04a | 183 | shares strings with the hidden internal symbol table. |
9fda1a39 SC |
184 | |
185 | Any linenumbers are read from the coff file too, and attached | |
9783e04a | 186 | to the symbols which own the functions the linenumbers belong to. |
9fda1a39 SC |
187 | |
188 | SUBSUBSECTION | |
c188b0be | 189 | Symbol writing |
9fda1a39 | 190 | |
9fda1a39 SC |
191 | Writing a symbol to a coff file which didn't come from a coff |
192 | file will lose any debugging information. The @code{asymbol} | |
c188b0be DM |
193 | structure remembers the BFD from which the symbol was taken, and on |
194 | output the back end makes sure that the same destination target as | |
9fda1a39 SC |
195 | source target is present. |
196 | ||
197 | When the symbols have come from a coff file then all the | |
198 | debugging information is preserved. | |
199 | ||
200 | Symbol tables are provided for writing to the back end in a | |
201 | vector of pointers to pointers. This allows applications like | |
202 | the linker to accumulate and output large symbol tables | |
203 | without having to do too much byte copying. | |
204 | ||
9fda1a39 SC |
205 | This function runs through the provided symbol table and |
206 | patches each symbol marked as a file place holder | |
207 | (@code{C_FILE}) to point to the next file place holder in the | |
208 | list. It also marks each @code{offset} field in the list with | |
209 | the offset from the first symbol of the current symbol. | |
210 | ||
211 | Another function of this procedure is to turn the canonical | |
212 | value form of BFD into the form used by coff. Internally, BFD | |
213 | expects symbol values to be offsets from a section base; so a | |
214 | symbol physically at 0x120, but in a section starting at | |
215 | 0x100, would have the value 0x20. Coff expects symbols to | |
216 | contain their final value, so symbols have their values | |
217 | changed at this point to reflect their sum with their owning | |
c188b0be | 218 | section. This transformation uses the |
9fda1a39 | 219 | <<output_section>> field of the @code{asymbol}'s |
9783e04a | 220 | @code{asection} @xref{Sections}. |
9fda1a39 | 221 | |
c188b0be | 222 | o <<coff_mangle_symbols>> |
616ebcfd | 223 | |
9fda1a39 SC |
224 | This routine runs though the provided symbol table and uses |
225 | the offsets generated by the previous pass and the pointers | |
226 | generated when the symbol table was read in to create the | |
227 | structured hierachy required by coff. It changes each pointer | |
c188b0be | 228 | to a symbol into the index into the symbol table of the asymbol. |
9fda1a39 | 229 | |
c188b0be | 230 | o <<coff_write_symbols>> |
616ebcfd | 231 | |
9fda1a39 SC |
232 | This routine runs through the symbol table and patches up the |
233 | symbols from their internal form into the coff way, calls the | |
9783e04a | 234 | bit twiddlers, and writes out the table to the file. |
6f715d66 | 235 | |
9fda1a39 | 236 | */ |
6f715d66 | 237 | |
9fda1a39 | 238 | /* |
616ebcfd SC |
239 | INTERNAL_DEFINITION |
240 | coff_symbol_type | |
6f715d66 | 241 | |
616ebcfd | 242 | DESCRIPTION |
c188b0be DM |
243 | The hidden information for an <<asymbol>> is described in a |
244 | <<combined_entry_type>>: | |
6f715d66 | 245 | |
616ebcfd | 246 | CODE_FRAGMENT |
e98e6ec1 | 247 | . |
9783e04a | 248 | .typedef struct coff_ptr_struct |
616ebcfd SC |
249 | .{ |
250 | . | |
251 | . {* Remembers the offset from the first symbol in the file for | |
252 | . this symbol. Generated by coff_renumber_symbols. *} | |
253 | .unsigned int offset; | |
254 | . | |
9783e04a DM |
255 | . {* Should the value of this symbol be renumbered. Used for |
256 | . XCOFF C_BSTAT symbols. Set by coff_slurp_symbol_table. *} | |
257 | .unsigned int fix_value : 1; | |
258 | . | |
616ebcfd SC |
259 | . {* Should the tag field of this symbol be renumbered. |
260 | . Created by coff_pointerize_aux. *} | |
9783e04a | 261 | .unsigned int fix_tag : 1; |
616ebcfd SC |
262 | . |
263 | . {* Should the endidx field of this symbol be renumbered. | |
264 | . Created by coff_pointerize_aux. *} | |
9783e04a DM |
265 | .unsigned int fix_end : 1; |
266 | . | |
267 | . {* Should the x_csect.x_scnlen field be renumbered. | |
0fc9ada9 | 268 | . Created by coff_pointerize_aux. *} |
9783e04a | 269 | .unsigned int fix_scnlen : 1; |
616ebcfd | 270 | . |
49488f2b ILT |
271 | . {* Fix up an XCOFF C_BINCL/C_EINCL symbol. The value is the |
272 | . index into the line number entries. Set by | |
273 | . coff_slurp_symbol_table. *} | |
274 | .unsigned int fix_line : 1; | |
275 | . | |
616ebcfd SC |
276 | . {* The container for the symbol structure as read and translated |
277 | . from the file. *} | |
278 | . | |
279 | .union { | |
280 | . union internal_auxent auxent; | |
281 | . struct internal_syment syment; | |
282 | . } u; | |
283 | .} combined_entry_type; | |
284 | . | |
285 | . | |
286 | .{* Each canonical asymbol really looks like this: *} | |
287 | . | |
288 | .typedef struct coff_symbol_struct | |
289 | .{ | |
290 | . {* The actual symbol which the rest of BFD works with *} | |
291 | .asymbol symbol; | |
292 | . | |
293 | . {* A pointer to the hidden information for this symbol *} | |
294 | .combined_entry_type *native; | |
295 | . | |
296 | . {* A pointer to the linenumber information for this symbol *} | |
297 | .struct lineno_cache_entry *lineno; | |
298 | . | |
d58b7049 SC |
299 | . {* Have the line numbers been relocated yet ? *} |
300 | .boolean done_lineno; | |
616ebcfd | 301 | .} coff_symbol_type; |
6f715d66 | 302 | |
6f715d66 | 303 | |
0f268757 SC |
304 | */ |
305 | ||
dd984644 | 306 | #ifdef COFF_WITH_PE |
beee31b1 SC |
307 | #include "peicode.h" |
308 | #else | |
309 | #include "coffswap.h" | |
89665c85 SC |
310 | #endif |
311 | ||
0f268757 SC |
312 | \f |
313 | /* void warning(); */ | |
6f715d66 | 314 | |
cbdc7909 JG |
315 | /* |
316 | * Return a word with STYP_* (scnhdr.s_flags) flags set to represent the | |
41f50af0 SC |
317 | * incoming SEC_* flags. The inverse of this function is styp_to_sec_flags(). |
318 | * NOTE: If you add to/change this routine, you should mirror the changes | |
319 | * in styp_to_sec_flags(). | |
320 | */ | |
cbdc7909 | 321 | static long |
fbb61b50 SC |
322 | sec_to_styp_flags (sec_name, sec_flags) |
323 | CONST char *sec_name; | |
324 | flagword sec_flags; | |
41f50af0 | 325 | { |
47cf4997 SC |
326 | long styp_flags = 0; |
327 | ||
9783e04a | 328 | if (!strcmp (sec_name, _TEXT)) |
fbb61b50 SC |
329 | { |
330 | styp_flags = STYP_TEXT; | |
331 | } | |
9783e04a | 332 | else if (!strcmp (sec_name, _DATA)) |
fbb61b50 SC |
333 | { |
334 | styp_flags = STYP_DATA; | |
fbb61b50 | 335 | } |
9783e04a | 336 | else if (!strcmp (sec_name, _BSS)) |
fbb61b50 SC |
337 | { |
338 | styp_flags = STYP_BSS; | |
8c4a1ace | 339 | #ifdef _COMMENT |
9783e04a DM |
340 | } |
341 | else if (!strcmp (sec_name, _COMMENT)) | |
fbb61b50 SC |
342 | { |
343 | styp_flags = STYP_INFO; | |
9783e04a | 344 | #endif /* _COMMENT */ |
b26059aa | 345 | #ifdef _LIB |
fbb61b50 | 346 | } |
9783e04a | 347 | else if (!strcmp (sec_name, _LIB)) |
fbb61b50 SC |
348 | { |
349 | styp_flags = STYP_LIB; | |
9783e04a | 350 | #endif /* _LIB */ |
35d835c4 | 351 | #ifdef _LIT |
fbb61b50 | 352 | } |
35d835c4 | 353 | else if (!strcmp (sec_name, _LIT)) |
fbb61b50 SC |
354 | { |
355 | styp_flags = STYP_LIT; | |
35d835c4 | 356 | #endif /* _LIT */ |
fbb61b50 | 357 | } |
9783e04a | 358 | else if (!strcmp (sec_name, ".debug")) |
fbb61b50 | 359 | { |
9783e04a DM |
360 | #ifdef STYP_DEBUG |
361 | styp_flags = STYP_DEBUG; | |
362 | #else | |
fbb61b50 | 363 | styp_flags = STYP_INFO; |
9783e04a | 364 | #endif |
fbb61b50 | 365 | } |
89665c85 | 366 | else if (!strncmp (sec_name, ".stab", 5)) |
fbb61b50 SC |
367 | { |
368 | styp_flags = STYP_INFO; | |
369 | } | |
3ea928f5 SC |
370 | #ifdef COFF_WITH_PE |
371 | else if (!strcmp (sec_name, ".edata")) | |
372 | { | |
373 | styp_flags = STYP_DATA; | |
374 | } | |
5f710a3a ILT |
375 | #endif |
376 | #ifdef RS6000COFF_C | |
377 | else if (!strcmp (sec_name, _PAD)) | |
378 | { | |
379 | styp_flags = STYP_PAD; | |
380 | } | |
381 | else if (!strcmp (sec_name, _LOADER)) | |
382 | { | |
383 | styp_flags = STYP_LOADER; | |
384 | } | |
3ea928f5 | 385 | #endif |
47cf4997 | 386 | /* Try and figure out what it should be */ |
9783e04a | 387 | else if (sec_flags & SEC_CODE) |
fbb61b50 SC |
388 | { |
389 | styp_flags = STYP_TEXT; | |
390 | } | |
9783e04a | 391 | else if (sec_flags & SEC_DATA) |
fbb61b50 SC |
392 | { |
393 | styp_flags = STYP_DATA; | |
394 | } | |
47cf4997 | 395 | else if (sec_flags & SEC_READONLY) |
fbb61b50 | 396 | { |
47cf4997 | 397 | #ifdef STYP_LIT /* 29k readonly text/data section */ |
fbb61b50 | 398 | styp_flags = STYP_LIT; |
41f50af0 | 399 | #else |
fbb61b50 | 400 | styp_flags = STYP_TEXT; |
9783e04a | 401 | #endif /* STYP_LIT */ |
fbb61b50 | 402 | } |
47cf4997 | 403 | else if (sec_flags & SEC_LOAD) |
fbb61b50 SC |
404 | { |
405 | styp_flags = STYP_TEXT; | |
406 | } | |
407 | else if (sec_flags & SEC_ALLOC) | |
408 | { | |
409 | styp_flags = STYP_BSS; | |
410 | } | |
41f50af0 | 411 | |
b26059aa | 412 | #ifdef STYP_NOLOAD |
c16313f0 | 413 | if ((sec_flags & (SEC_NEVER_LOAD | SEC_COFF_SHARED_LIBRARY)) != 0) |
9783e04a | 414 | styp_flags |= STYP_NOLOAD; |
b26059aa ILT |
415 | #endif |
416 | ||
9783e04a | 417 | return (styp_flags); |
41f50af0 | 418 | } |
cbdc7909 | 419 | /* |
41f50af0 | 420 | * Return a word with SEC_* flags set to represent the incoming |
cbdc7909 JG |
421 | * STYP_* flags (from scnhdr.s_flags). The inverse of this |
422 | * function is sec_to_styp_flags(). | |
41f50af0 SC |
423 | * NOTE: If you add to/change this routine, you should mirror the changes |
424 | * in sec_to_styp_flags(). | |
425 | */ | |
cbdc7909 | 426 | static flagword |
e8fbe6d9 ILT |
427 | styp_to_sec_flags (abfd, hdr, name) |
428 | bfd *abfd; | |
57a1867e | 429 | PTR hdr; |
e8fbe6d9 | 430 | const char *name; |
41f50af0 | 431 | { |
075caafd ILT |
432 | struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr; |
433 | long styp_flags = internal_s->s_flags; | |
9783e04a | 434 | flagword sec_flags = 0; |
41f50af0 | 435 | |
b26059aa ILT |
436 | #ifdef STYP_NOLOAD |
437 | if (styp_flags & STYP_NOLOAD) | |
9783e04a DM |
438 | { |
439 | sec_flags |= SEC_NEVER_LOAD; | |
440 | } | |
b26059aa ILT |
441 | #endif /* STYP_NOLOAD */ |
442 | ||
8f718ed3 ILT |
443 | /* For 386 COFF, at least, an unloadable text or data section is |
444 | actually a shared library section. */ | |
445 | if (styp_flags & STYP_TEXT) | |
9783e04a DM |
446 | { |
447 | if (sec_flags & SEC_NEVER_LOAD) | |
c16313f0 | 448 | sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY; |
9783e04a DM |
449 | else |
450 | sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
451 | } | |
8f718ed3 | 452 | else if (styp_flags & STYP_DATA) |
9783e04a DM |
453 | { |
454 | if (sec_flags & SEC_NEVER_LOAD) | |
c16313f0 | 455 | sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY; |
9783e04a DM |
456 | else |
457 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
458 | } | |
459 | else if (styp_flags & STYP_BSS) | |
460 | { | |
35d835c4 | 461 | #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY |
9783e04a | 462 | if (sec_flags & SEC_NEVER_LOAD) |
c16313f0 | 463 | sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY; |
9783e04a | 464 | else |
35d835c4 | 465 | #endif |
9783e04a DM |
466 | sec_flags |= SEC_ALLOC; |
467 | } | |
468 | else if (styp_flags & STYP_INFO) | |
fbb61b50 | 469 | { |
b5b056fc KR |
470 | /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is |
471 | defined. coff_compute_section_file_positions uses | |
472 | COFF_PAGE_SIZE to ensure that the low order bits of the | |
473 | section VMA and the file offset match. If we don't know | |
474 | COFF_PAGE_SIZE, we can't ensure the correct correspondence, | |
475 | and demand page loading of the file will fail. */ | |
476 | #ifdef COFF_PAGE_SIZE | |
477 | sec_flags |= SEC_DEBUGGING; | |
478 | #endif | |
fbb61b50 | 479 | } |
28a0c103 ILT |
480 | else if (styp_flags & STYP_PAD) |
481 | { | |
482 | sec_flags = 0; | |
483 | } | |
e8fbe6d9 ILT |
484 | else if (strcmp (name, _TEXT) == 0) |
485 | { | |
486 | if (sec_flags & SEC_NEVER_LOAD) | |
487 | sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY; | |
488 | else | |
489 | sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
490 | } | |
1af85fbb | 491 | else if (strcmp (name, _DATA) == 0) |
e8fbe6d9 ILT |
492 | { |
493 | if (sec_flags & SEC_NEVER_LOAD) | |
494 | sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY; | |
495 | else | |
496 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
497 | } | |
498 | else if (strcmp (name, _BSS) == 0) | |
499 | { | |
500 | #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY | |
501 | if (sec_flags & SEC_NEVER_LOAD) | |
502 | sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY; | |
503 | else | |
504 | #endif | |
505 | sec_flags |= SEC_ALLOC; | |
506 | } | |
507 | else if (strcmp (name, ".debug") == 0 | |
508 | #ifdef _COMMENT | |
509 | || strcmp (name, _COMMENT) == 0 | |
510 | #endif | |
89665c85 | 511 | || strncmp (name, ".stab", 5) == 0) |
e8fbe6d9 ILT |
512 | { |
513 | #ifdef COFF_PAGE_SIZE | |
514 | sec_flags |= SEC_DEBUGGING; | |
515 | #endif | |
516 | } | |
517 | #ifdef _LIB | |
518 | else if (strcmp (name, _LIB) == 0) | |
519 | ; | |
520 | #endif | |
521 | #ifdef _LIT | |
522 | else if (strcmp (name, _LIT) == 0) | |
523 | { | |
524 | sec_flags = SEC_LOAD | SEC_ALLOC | SEC_READONLY; | |
525 | } | |
526 | #endif | |
8070f29d | 527 | else |
9783e04a DM |
528 | { |
529 | sec_flags |= SEC_ALLOC | SEC_LOAD; | |
530 | } | |
b26059aa | 531 | |
8070f29d KR |
532 | #ifdef STYP_LIT /* A29k readonly text/data section type */ |
533 | if ((styp_flags & STYP_LIT) == STYP_LIT) | |
9783e04a DM |
534 | { |
535 | sec_flags = (SEC_LOAD | SEC_ALLOC | SEC_READONLY); | |
536 | } | |
537 | #endif /* STYP_LIT */ | |
8070f29d KR |
538 | #ifdef STYP_OTHER_LOAD /* Other loaded sections */ |
539 | if (styp_flags & STYP_OTHER_LOAD) | |
9783e04a DM |
540 | { |
541 | sec_flags = (SEC_LOAD | SEC_ALLOC); | |
542 | } | |
543 | #endif /* STYP_SDATA */ | |
41f50af0 | 544 | |
9783e04a | 545 | return (sec_flags); |
41f50af0 | 546 | } |
0f268757 | 547 | |
f135c692 | 548 | #define get_index(symbol) ((symbol)->udata.i) |
0f268757 | 549 | |
07de8e96 KR |
550 | /* |
551 | INTERNAL_DEFINITION | |
552 | bfd_coff_backend_data | |
553 | ||
554 | CODE_FRAGMENT | |
555 | ||
c188b0be | 556 | Special entry points for gdb to swap in coff symbol table parts: |
9783e04a | 557 | .typedef struct |
60ac749c | 558 | .{ |
07de8e96 | 559 | . void (*_bfd_coff_swap_aux_in) PARAMS (( |
330595d0 | 560 | . bfd *abfd, |
07de8e96 KR |
561 | . PTR ext, |
562 | . int type, | |
330595d0 ILT |
563 | . int class, |
564 | . int indaux, | |
565 | . int numaux, | |
07de8e96 KR |
566 | . PTR in)); |
567 | . | |
568 | . void (*_bfd_coff_swap_sym_in) PARAMS (( | |
569 | . bfd *abfd , | |
570 | . PTR ext, | |
571 | . PTR in)); | |
572 | . | |
573 | . void (*_bfd_coff_swap_lineno_in) PARAMS (( | |
574 | . bfd *abfd, | |
575 | . PTR ext, | |
576 | . PTR in)); | |
577 | . | |
578 | ||
c188b0be | 579 | Special entry points for gas to swap out coff parts: |
07de8e96 KR |
580 | |
581 | . unsigned int (*_bfd_coff_swap_aux_out) PARAMS (( | |
582 | . bfd *abfd, | |
583 | . PTR in, | |
584 | . int type, | |
585 | . int class, | |
330595d0 ILT |
586 | . int indaux, |
587 | . int numaux, | |
07de8e96 KR |
588 | . PTR ext)); |
589 | . | |
590 | . unsigned int (*_bfd_coff_swap_sym_out) PARAMS (( | |
591 | . bfd *abfd, | |
592 | . PTR in, | |
593 | . PTR ext)); | |
594 | . | |
595 | . unsigned int (*_bfd_coff_swap_lineno_out) PARAMS (( | |
596 | . bfd *abfd, | |
597 | . PTR in, | |
598 | . PTR ext)); | |
599 | . | |
600 | . unsigned int (*_bfd_coff_swap_reloc_out) PARAMS (( | |
601 | . bfd *abfd, | |
602 | . PTR src, | |
603 | . PTR dst)); | |
604 | . | |
605 | . unsigned int (*_bfd_coff_swap_filehdr_out) PARAMS (( | |
606 | . bfd *abfd, | |
607 | . PTR in, | |
608 | . PTR out)); | |
609 | . | |
610 | . unsigned int (*_bfd_coff_swap_aouthdr_out) PARAMS (( | |
611 | . bfd *abfd, | |
612 | . PTR in, | |
613 | . PTR out)); | |
614 | . | |
615 | . unsigned int (*_bfd_coff_swap_scnhdr_out) PARAMS (( | |
616 | . bfd *abfd, | |
617 | . PTR in, | |
618 | . PTR out)); | |
619 | . | |
075caafd ILT |
620 | |
621 | Special entry points for generic COFF routines to call target | |
c188b0be | 622 | dependent COFF routines: |
075caafd ILT |
623 | |
624 | . unsigned int _bfd_filhsz; | |
625 | . unsigned int _bfd_aoutsz; | |
626 | . unsigned int _bfd_scnhsz; | |
627 | . unsigned int _bfd_symesz; | |
628 | . unsigned int _bfd_auxesz; | |
69645d10 | 629 | . unsigned int _bfd_relsz; |
075caafd ILT |
630 | . unsigned int _bfd_linesz; |
631 | . boolean _bfd_coff_long_filenames; | |
632 | . void (*_bfd_coff_swap_filehdr_in) PARAMS (( | |
633 | . bfd *abfd, | |
634 | . PTR ext, | |
635 | . PTR in)); | |
636 | . void (*_bfd_coff_swap_aouthdr_in) PARAMS (( | |
637 | . bfd *abfd, | |
638 | . PTR ext, | |
639 | . PTR in)); | |
640 | . void (*_bfd_coff_swap_scnhdr_in) PARAMS (( | |
641 | . bfd *abfd, | |
642 | . PTR ext, | |
643 | . PTR in)); | |
69645d10 ILT |
644 | . void (*_bfd_coff_swap_reloc_in) PARAMS (( |
645 | . bfd *abfd, | |
646 | . PTR ext, | |
647 | . PTR in)); | |
075caafd ILT |
648 | . boolean (*_bfd_coff_bad_format_hook) PARAMS (( |
649 | . bfd *abfd, | |
650 | . PTR internal_filehdr)); | |
651 | . boolean (*_bfd_coff_set_arch_mach_hook) PARAMS (( | |
652 | . bfd *abfd, | |
653 | . PTR internal_filehdr)); | |
654 | . PTR (*_bfd_coff_mkobject_hook) PARAMS (( | |
655 | . bfd *abfd, | |
27f524a3 ILT |
656 | . PTR internal_filehdr, |
657 | . PTR internal_aouthdr)); | |
075caafd ILT |
658 | . flagword (*_bfd_styp_to_sec_flags_hook) PARAMS (( |
659 | . bfd *abfd, | |
e8fbe6d9 ILT |
660 | . PTR internal_scnhdr, |
661 | . const char *name)); | |
075caafd ILT |
662 | . void (*_bfd_set_alignment_hook) PARAMS (( |
663 | . bfd *abfd, | |
664 | . asection *sec, | |
665 | . PTR internal_scnhdr)); | |
666 | . boolean (*_bfd_coff_slurp_symbol_table) PARAMS (( | |
667 | . bfd *abfd)); | |
668 | . boolean (*_bfd_coff_symname_in_debug) PARAMS (( | |
669 | . bfd *abfd, | |
670 | . struct internal_syment *sym)); | |
c80cc833 ILT |
671 | . boolean (*_bfd_coff_pointerize_aux_hook) PARAMS (( |
672 | . bfd *abfd, | |
673 | . combined_entry_type *table_base, | |
674 | . combined_entry_type *symbol, | |
675 | . unsigned int indaux, | |
676 | . combined_entry_type *aux)); | |
0fc9ada9 ILT |
677 | . boolean (*_bfd_coff_print_aux) PARAMS (( |
678 | . bfd *abfd, | |
679 | . FILE *file, | |
680 | . combined_entry_type *table_base, | |
681 | . combined_entry_type *symbol, | |
682 | . combined_entry_type *aux, | |
683 | . unsigned int indaux)); | |
075caafd ILT |
684 | . void (*_bfd_coff_reloc16_extra_cases) PARAMS (( |
685 | . bfd *abfd, | |
330595d0 ILT |
686 | . struct bfd_link_info *link_info, |
687 | . struct bfd_link_order *link_order, | |
075caafd ILT |
688 | . arelent *reloc, |
689 | . bfd_byte *data, | |
690 | . unsigned int *src_ptr, | |
691 | . unsigned int *dst_ptr)); | |
fbb61b50 | 692 | . int (*_bfd_coff_reloc16_estimate) PARAMS (( |
09a28207 | 693 | . bfd *abfd, |
fbb61b50 | 694 | . asection *input_section, |
fbb61b50 | 695 | . arelent *r, |
330595d0 ILT |
696 | . unsigned int shrink, |
697 | . struct bfd_link_info *link_info)); | |
69645d10 ILT |
698 | . boolean (*_bfd_coff_sym_is_global) PARAMS (( |
699 | . bfd *abfd, | |
700 | . struct internal_syment *)); | |
701 | . void (*_bfd_coff_compute_section_file_positions) PARAMS (( | |
702 | . bfd *abfd)); | |
a208a70f ILT |
703 | . boolean (*_bfd_coff_start_final_link) PARAMS (( |
704 | . bfd *output_bfd, | |
705 | . struct bfd_link_info *info)); | |
69645d10 ILT |
706 | . boolean (*_bfd_coff_relocate_section) PARAMS (( |
707 | . bfd *output_bfd, | |
708 | . struct bfd_link_info *info, | |
709 | . bfd *input_bfd, | |
710 | . asection *input_section, | |
711 | . bfd_byte *contents, | |
712 | . struct internal_reloc *relocs, | |
713 | . struct internal_syment *syms, | |
714 | . asection **sections)); | |
f135c692 ILT |
715 | . reloc_howto_type *(*_bfd_coff_rtype_to_howto) PARAMS (( |
716 | . bfd *abfd, | |
717 | . asection *sec, | |
718 | . struct internal_reloc *rel, | |
719 | . struct coff_link_hash_entry *h, | |
720 | . struct internal_syment *sym, | |
721 | . bfd_vma *addendp)); | |
722 | . boolean (*_bfd_coff_adjust_symndx) PARAMS (( | |
723 | . bfd *obfd, | |
724 | . struct bfd_link_info *info, | |
725 | . bfd *ibfd, | |
726 | . asection *sec, | |
727 | . struct internal_reloc *reloc, | |
728 | . boolean *adjustedp)); | |
d19df9b5 ILT |
729 | . boolean (*_bfd_coff_link_add_one_symbol) PARAMS (( |
730 | . struct bfd_link_info *info, | |
731 | . bfd *abfd, | |
732 | . const char *name, | |
733 | . flagword flags, | |
734 | . asection *section, | |
735 | . bfd_vma value, | |
736 | . const char *string, | |
737 | . boolean copy, | |
738 | . boolean collect, | |
739 | . struct bfd_link_hash_entry **hashp)); | |
fbb61b50 | 740 | . |
07de8e96 KR |
741 | .} bfd_coff_backend_data; |
742 | . | |
07de8e96 KR |
743 | .#define coff_backend_info(abfd) ((bfd_coff_backend_data *) (abfd)->xvec->backend_data) |
744 | . | |
330595d0 ILT |
745 | .#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \ |
746 | . ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i)) | |
07de8e96 KR |
747 | . |
748 | .#define bfd_coff_swap_sym_in(a,e,i) \ | |
749 | . ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i)) | |
750 | . | |
751 | .#define bfd_coff_swap_lineno_in(a,e,i) \ | |
752 | . ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i)) | |
753 | . | |
754 | .#define bfd_coff_swap_reloc_out(abfd, i, o) \ | |
755 | . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o)) | |
756 | . | |
757 | .#define bfd_coff_swap_lineno_out(abfd, i, o) \ | |
758 | . ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o)) | |
759 | . | |
330595d0 ILT |
760 | .#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \ |
761 | . ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o)) | |
07de8e96 KR |
762 | . |
763 | .#define bfd_coff_swap_sym_out(abfd, i,o) \ | |
764 | . ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o)) | |
765 | . | |
766 | .#define bfd_coff_swap_scnhdr_out(abfd, i,o) \ | |
767 | . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o)) | |
768 | . | |
769 | .#define bfd_coff_swap_filehdr_out(abfd, i,o) \ | |
770 | . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o)) | |
771 | . | |
772 | .#define bfd_coff_swap_aouthdr_out(abfd, i,o) \ | |
773 | . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o)) | |
774 | . | |
075caafd ILT |
775 | .#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz) |
776 | .#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz) | |
777 | .#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz) | |
778 | .#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz) | |
779 | .#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz) | |
69645d10 | 780 | .#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz) |
075caafd ILT |
781 | .#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz) |
782 | .#define bfd_coff_long_filenames(abfd) (coff_backend_info (abfd)->_bfd_coff_long_filenames) | |
783 | .#define bfd_coff_swap_filehdr_in(abfd, i,o) \ | |
784 | . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o)) | |
785 | . | |
786 | .#define bfd_coff_swap_aouthdr_in(abfd, i,o) \ | |
787 | . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o)) | |
788 | . | |
789 | .#define bfd_coff_swap_scnhdr_in(abfd, i,o) \ | |
790 | . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o)) | |
791 | . | |
69645d10 ILT |
792 | .#define bfd_coff_swap_reloc_in(abfd, i, o) \ |
793 | . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o)) | |
794 | . | |
075caafd ILT |
795 | .#define bfd_coff_bad_format_hook(abfd, filehdr) \ |
796 | . ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr)) | |
797 | . | |
798 | .#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\ | |
799 | . ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr)) | |
27f524a3 ILT |
800 | .#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\ |
801 | . ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook) (abfd, filehdr, aouthdr)) | |
075caafd | 802 | . |
e8fbe6d9 ILT |
803 | .#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name)\ |
804 | . ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook) (abfd, scnhdr, name)) | |
075caafd | 805 | . |
075caafd ILT |
806 | .#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\ |
807 | . ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr)) | |
808 | . | |
809 | .#define bfd_coff_slurp_symbol_table(abfd)\ | |
810 | . ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd)) | |
811 | . | |
812 | .#define bfd_coff_symname_in_debug(abfd, sym)\ | |
813 | . ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym)) | |
814 | . | |
0fc9ada9 ILT |
815 | .#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\ |
816 | . ((coff_backend_info (abfd)->_bfd_coff_print_aux)\ | |
817 | . (abfd, file, base, symbol, aux, indaux)) | |
818 | . | |
330595d0 | 819 | .#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)\ |
075caafd | 820 | . ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\ |
330595d0 | 821 | . (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)) |
fbb61b50 | 822 | . |
09a28207 | 823 | .#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\ |
fbb61b50 | 824 | . ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\ |
09a28207 | 825 | . (abfd, section, reloc, shrink, link_info)) |
9783e04a | 826 | . |
69645d10 ILT |
827 | .#define bfd_coff_sym_is_global(abfd, sym)\ |
828 | . ((coff_backend_info (abfd)->_bfd_coff_sym_is_global)\ | |
829 | . (abfd, sym)) | |
830 | . | |
831 | .#define bfd_coff_compute_section_file_positions(abfd)\ | |
832 | . ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\ | |
833 | . (abfd)) | |
834 | . | |
a208a70f ILT |
835 | .#define bfd_coff_start_final_link(obfd, info)\ |
836 | . ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\ | |
837 | . (obfd, info)) | |
69645d10 ILT |
838 | .#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\ |
839 | . ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\ | |
840 | . (obfd, info, ibfd, o, con, rel, isyms, secs)) | |
f135c692 ILT |
841 | .#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\ |
842 | . ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\ | |
843 | . (abfd, sec, rel, h, sym, addendp)) | |
844 | .#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\ | |
845 | . ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\ | |
846 | . (obfd, info, ibfd, sec, rel, adjustedp)) | |
d19df9b5 ILT |
847 | .#define bfd_coff_link_add_one_symbol(info, abfd, name, flags, section,\ |
848 | . value, string, cp, coll, hashp)\ | |
849 | . ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\ | |
850 | . (info, abfd, name, flags, section, value, string, cp, coll, hashp)) | |
69645d10 | 851 | . |
07de8e96 | 852 | */ |
0f268757 | 853 | |
075caafd | 854 | /* See whether the magic number matches. */ |
7a8b18b6 | 855 | |
075caafd | 856 | static boolean |
57a1867e DM |
857 | coff_bad_format_hook (abfd, filehdr) |
858 | bfd * abfd; | |
859 | PTR filehdr; | |
0f268757 | 860 | { |
075caafd | 861 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; |
0f268757 | 862 | |
075caafd ILT |
863 | if (BADMAG (*internal_f)) |
864 | return false; | |
0f268757 | 865 | |
075caafd ILT |
866 | /* if the optional header is NULL or not the correct size then |
867 | quit; the only difference I can see between m88k dgux headers (MC88DMAGIC) | |
868 | and Intel 960 readwrite headers (I960WRMAGIC) is that the | |
869 | optional header is of a different size. | |
cbdc7909 | 870 | |
075caafd ILT |
871 | But the mips keeps extra stuff in it's opthdr, so dont check |
872 | when doing that | |
873 | */ | |
0f268757 | 874 | |
075caafd ILT |
875 | #if defined(M88) || defined(I960) |
876 | if (internal_f->f_opthdr != 0 && AOUTSZ != internal_f->f_opthdr) | |
877 | return false; | |
0f268757 | 878 | #endif |
0f268757 | 879 | |
075caafd | 880 | return true; |
0f268757 SC |
881 | } |
882 | ||
0f268757 SC |
883 | /* |
884 | initialize a section structure with information peculiar to this | |
885 | particular implementation of coff | |
886 | */ | |
887 | ||
075caafd | 888 | static boolean |
57a1867e DM |
889 | coff_new_section_hook (abfd, section) |
890 | bfd * abfd; | |
891 | asection * section; | |
0f268757 | 892 | { |
f135c692 ILT |
893 | section->alignment_power = COFF_DEFAULT_SECTION_ALIGNMENT_POWER; |
894 | ||
5f710a3a ILT |
895 | #ifdef RS6000COFF_C |
896 | if (xcoff_data (abfd)->text_align_power != 0 | |
897 | && strcmp (bfd_get_section_name (abfd, section), ".text") == 0) | |
898 | section->alignment_power = xcoff_data (abfd)->text_align_power; | |
899 | if (xcoff_data (abfd)->data_align_power != 0 | |
900 | && strcmp (bfd_get_section_name (abfd, section), ".data") == 0) | |
901 | section->alignment_power = xcoff_data (abfd)->data_align_power; | |
902 | #endif | |
903 | ||
8070f29d KR |
904 | /* Allocate aux records for section symbols, to store size and |
905 | related info. | |
906 | ||
907 | @@ Shouldn't use constant multiplier here! */ | |
908 | coffsymbol (section->symbol)->native = | |
909 | (combined_entry_type *) bfd_zalloc (abfd, | |
910 | sizeof (combined_entry_type) * 10); | |
c16313f0 | 911 | |
f135c692 ILT |
912 | /* The .stab section must be aligned to 2**2 at most, because |
913 | otherwise there may be gaps in the section which gdb will not | |
914 | know how to interpret. Examining the section name is a hack, but | |
850985ee ILT |
915 | that is also how gdb locates the section. |
916 | We need to handle the .ctors and .dtors sections similarly, to | |
917 | avoid introducing null words in the tables. */ | |
f135c692 | 918 | if (COFF_DEFAULT_SECTION_ALIGNMENT_POWER > 2 |
850985ee ILT |
919 | && (strncmp (section->name, ".stab", 5) == 0 |
920 | || strcmp (section->name, ".ctors") == 0 | |
921 | || strcmp (section->name, ".dtors") == 0)) | |
f135c692 | 922 | section->alignment_power = 2; |
c16313f0 | 923 | |
4a3d3b42 ILT |
924 | /* Similarly, the .stabstr section must be aligned to 2**0 at most. */ |
925 | if (COFF_DEFAULT_SECTION_ALIGNMENT_POWER > 0 | |
926 | && strncmp (section->name, ".stabstr", 8) == 0) | |
927 | section->alignment_power = 0; | |
928 | ||
0f268757 SC |
929 | return true; |
930 | } | |
931 | ||
0f268757 | 932 | #ifdef I960 |
e98e6ec1 | 933 | |
075caafd ILT |
934 | /* Set the alignment of a BFD section. */ |
935 | ||
936 | static void | |
57a1867e DM |
937 | coff_set_alignment_hook (abfd, section, scnhdr) |
938 | bfd * abfd; | |
939 | asection * section; | |
940 | PTR scnhdr; | |
e98e6ec1 | 941 | { |
075caafd ILT |
942 | struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr; |
943 | unsigned int i; | |
944 | ||
945 | for (i = 0; i < 32; i++) | |
946 | if ((1 << i) >= hdr->s_align) | |
947 | break; | |
948 | section->alignment_power = i; | |
e98e6ec1 SC |
949 | } |
950 | ||
c769947b SS |
951 | #else /* ! I960 */ |
952 | #ifdef COFF_WITH_PE | |
d6f41a7d KK |
953 | |
954 | /* a couple of macros to help setting the alignment power field */ | |
955 | #define ALIGN_SET(field,x,y) \ | |
956 | if (((field) & IMAGE_SCN_ALIGN_64BYTES) == x )\ | |
957 | {\ | |
958 | section->alignment_power = y;\ | |
959 | } | |
960 | ||
961 | #define ELIFALIGN_SET(field,x,y) \ | |
962 | else if (( (field) & IMAGE_SCN_ALIGN_64BYTES) == x ) \ | |
963 | {\ | |
964 | section->alignment_power = y;\ | |
965 | } | |
966 | ||
967 | static void | |
968 | coff_set_alignment_hook (abfd, section, scnhdr) | |
969 | bfd * abfd; | |
970 | asection * section; | |
971 | PTR scnhdr; | |
972 | { | |
973 | struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr; | |
974 | ||
975 | ALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_64BYTES, 6) | |
976 | ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_32BYTES, 5) | |
977 | ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_16BYTES, 4) | |
978 | ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_8BYTES, 3) | |
979 | ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_4BYTES, 2) | |
980 | ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_2BYTES, 1) | |
981 | ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_1BYTES, 0) | |
59066248 KK |
982 | |
983 | #ifdef POWERPC_LE_PE | |
984 | if (strcmp (section->name, ".idata$2") == 0) | |
985 | { | |
59066248 KK |
986 | section->alignment_power = 0; |
987 | } | |
988 | else if (strcmp (section->name, ".idata$3") == 0) | |
989 | { | |
59066248 KK |
990 | section->alignment_power = 0; |
991 | } | |
992 | else if (strcmp (section->name, ".idata$4") == 0) | |
993 | { | |
59066248 KK |
994 | section->alignment_power = 2; |
995 | } | |
996 | else if (strcmp (section->name, ".idata$5") == 0) | |
997 | { | |
59066248 KK |
998 | section->alignment_power = 2; |
999 | } | |
1000 | else if (strcmp (section->name, ".idata$6") == 0) | |
1001 | { | |
59066248 KK |
1002 | section->alignment_power = 1; |
1003 | } | |
caa740be KK |
1004 | else if (strcmp (section->name, ".reloc") == 0) |
1005 | { | |
1006 | section->alignment_power = 1; | |
1007 | } | |
e7894f6b KK |
1008 | else if (strncmp (section->name, ".stab", 5) == 0) |
1009 | { | |
1010 | section->alignment_power = 2; | |
1011 | } | |
59066248 | 1012 | #endif |
d6f41a7d KK |
1013 | } |
1014 | #undef ALIGN_SET | |
1015 | #undef ELIFALIGN_SET | |
1016 | ||
c769947b SS |
1017 | #else /* ! COFF_WITH_PE */ |
1018 | #ifdef RS6000COFF_C | |
1019 | ||
1020 | /* We grossly abuse this function to handle XCOFF overflow headers. | |
1021 | When we see one, we correct the reloc and line number counts in the | |
1022 | real header, and remove the section we just created. */ | |
1023 | ||
1024 | static void | |
1025 | coff_set_alignment_hook (abfd, section, scnhdr) | |
1026 | bfd *abfd; | |
1027 | asection *section; | |
1028 | PTR scnhdr; | |
1029 | { | |
1030 | struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr; | |
1031 | asection *real_sec; | |
1032 | asection **ps; | |
1033 | ||
1034 | if ((hdr->s_flags & STYP_OVRFLO) == 0) | |
1035 | return; | |
1036 | ||
1037 | real_sec = coff_section_from_bfd_index (abfd, hdr->s_nreloc); | |
1038 | if (real_sec == NULL) | |
1039 | return; | |
1040 | ||
1041 | real_sec->reloc_count = hdr->s_paddr; | |
1042 | real_sec->lineno_count = hdr->s_vaddr; | |
1043 | ||
1044 | for (ps = &abfd->sections; *ps != NULL; ps = &(*ps)->next) | |
1045 | { | |
1046 | if (*ps == section) | |
1047 | { | |
1048 | *ps = (*ps)->next; | |
1049 | --abfd->section_count; | |
1050 | break; | |
1051 | } | |
1052 | } | |
1053 | } | |
1054 | ||
1055 | #else /* ! RS6000COFF_C */ | |
0f268757 | 1056 | |
075caafd ILT |
1057 | #define coff_set_alignment_hook \ |
1058 | ((void (*) PARAMS ((bfd *, asection *, PTR))) bfd_void) | |
41f50af0 | 1059 | |
c769947b SS |
1060 | #endif /* ! RS6000COFF_C */ |
1061 | #endif /* ! COFF_WITH_PE */ | |
075caafd | 1062 | #endif /* ! I960 */ |
0f268757 | 1063 | |
beee31b1 | 1064 | #ifndef coff_mkobject |
9783e04a | 1065 | static boolean |
57a1867e DM |
1066 | coff_mkobject (abfd) |
1067 | bfd * abfd; | |
0f268757 | 1068 | { |
075caafd ILT |
1069 | coff_data_type *coff; |
1070 | ||
9783e04a DM |
1071 | abfd->tdata.coff_obj_data = (struct coff_tdata *) bfd_zalloc (abfd, sizeof (coff_data_type)); |
1072 | if (abfd->tdata.coff_obj_data == 0) | |
a9713b91 | 1073 | return false; |
075caafd ILT |
1074 | coff = coff_data (abfd); |
1075 | coff->symbols = (coff_symbol_type *) NULL; | |
1076 | coff->conversion_table = (unsigned int *) NULL; | |
1077 | coff->raw_syments = (struct coff_ptr_struct *) NULL; | |
075caafd | 1078 | coff->relocbase = 0; |
d6f41a7d KK |
1079 | coff->local_toc_sym_map = 0; |
1080 | ||
6590a8c9 | 1081 | /* make_abs_section(abfd);*/ |
89665c85 | 1082 | |
0f268757 SC |
1083 | return true; |
1084 | } | |
beee31b1 | 1085 | #endif |
0f268757 | 1086 | |
075caafd | 1087 | /* Create the COFF backend specific information. */ |
beee31b1 | 1088 | #ifndef coff_mkobject_hook |
9783e04a | 1089 | static PTR |
57a1867e DM |
1090 | coff_mkobject_hook (abfd, filehdr, aouthdr) |
1091 | bfd * abfd; | |
1092 | PTR filehdr; | |
1093 | PTR aouthdr; | |
0f268757 | 1094 | { |
075caafd | 1095 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; |
0f268757 | 1096 | coff_data_type *coff; |
cbdc7909 | 1097 | |
075caafd ILT |
1098 | if (coff_mkobject (abfd) == false) |
1099 | return NULL; | |
e98e6ec1 | 1100 | |
075caafd | 1101 | coff = coff_data (abfd); |
cbdc7909 | 1102 | |
075caafd | 1103 | coff->sym_filepos = internal_f->f_symptr; |
cbdc7909 | 1104 | |
075caafd ILT |
1105 | /* These members communicate important constants about the symbol |
1106 | table to GDB's symbol-reading code. These `constants' | |
1107 | unfortunately vary among coff implementations... */ | |
1108 | coff->local_n_btmask = N_BTMASK; | |
1109 | coff->local_n_btshft = N_BTSHFT; | |
9783e04a | 1110 | coff->local_n_tmask = N_TMASK; |
075caafd | 1111 | coff->local_n_tshift = N_TSHIFT; |
9783e04a DM |
1112 | coff->local_symesz = SYMESZ; |
1113 | coff->local_auxesz = AUXESZ; | |
1114 | coff->local_linesz = LINESZ; | |
cbdc7909 | 1115 | |
69645d10 ILT |
1116 | obj_raw_syment_count (abfd) = |
1117 | obj_conv_table_size (abfd) = | |
1118 | internal_f->f_nsyms; | |
1119 | ||
5f710a3a ILT |
1120 | #ifdef RS6000COFF_C |
1121 | if ((internal_f->f_flags & F_SHROBJ) != 0) | |
1122 | abfd->flags |= DYNAMIC; | |
1123 | if (aouthdr != NULL && internal_f->f_opthdr >= AOUTSZ) | |
1124 | { | |
1125 | struct internal_aouthdr *internal_a = | |
1126 | (struct internal_aouthdr *) aouthdr; | |
1127 | struct xcoff_tdata *xcoff; | |
1128 | ||
1129 | xcoff = xcoff_data (abfd); | |
867d923d | 1130 | xcoff->full_aouthdr = true; |
5f710a3a | 1131 | xcoff->toc = internal_a->o_toc; |
d19df9b5 ILT |
1132 | xcoff->sntoc = internal_a->o_sntoc; |
1133 | xcoff->snentry = internal_a->o_snentry; | |
5f710a3a ILT |
1134 | xcoff->text_align_power = internal_a->o_algntext; |
1135 | xcoff->data_align_power = internal_a->o_algndata; | |
1136 | xcoff->modtype = internal_a->o_modtype; | |
dd984644 | 1137 | xcoff->cputype = internal_a->o_cputype; |
5f710a3a ILT |
1138 | xcoff->maxdata = internal_a->o_maxdata; |
1139 | xcoff->maxstack = internal_a->o_maxstack; | |
1140 | } | |
1141 | #endif | |
1142 | ||
075caafd ILT |
1143 | return (PTR) coff; |
1144 | } | |
beee31b1 | 1145 | #endif |
cbdc7909 | 1146 | |
075caafd ILT |
1147 | /* Determine the machine architecture and type. FIXME: This is target |
1148 | dependent because the magic numbers are defined in the target | |
1149 | dependent header files. But there is no particular need for this. | |
1150 | If the magic numbers were moved to a separate file, this function | |
1151 | would be target independent and would also be much more successful | |
1152 | at linking together COFF files for different architectures. */ | |
cbdc7909 | 1153 | |
075caafd | 1154 | static boolean |
9783e04a | 1155 | coff_set_arch_mach_hook (abfd, filehdr) |
4d09e8ac JK |
1156 | bfd *abfd; |
1157 | PTR filehdr; | |
075caafd ILT |
1158 | { |
1159 | long machine; | |
1160 | enum bfd_architecture arch; | |
1161 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
e98e6ec1 | 1162 | |
075caafd | 1163 | machine = 0; |
9783e04a DM |
1164 | switch (internal_f->f_magic) |
1165 | { | |
80b2dd82 KK |
1166 | #ifdef PPCMAGIC |
1167 | case PPCMAGIC: | |
1168 | arch = bfd_arch_powerpc; | |
1169 | machine = 0; /* what does this mean? (krk) */ | |
1170 | break; | |
1171 | #endif | |
20fdc627 | 1172 | #ifdef I386MAGIC |
9783e04a DM |
1173 | case I386MAGIC: |
1174 | case I386PTXMAGIC: | |
1175 | case I386AIXMAGIC: /* Danbury PS/2 AIX C Compiler */ | |
1176 | case LYNXCOFFMAGIC: /* shadows the m68k Lynx number below, sigh */ | |
1177 | arch = bfd_arch_i386; | |
1178 | machine = 0; | |
1179 | break; | |
20fdc627 | 1180 | #endif |
cbdc7909 | 1181 | #ifdef A29K_MAGIC_BIG |
9783e04a DM |
1182 | case A29K_MAGIC_BIG: |
1183 | case A29K_MAGIC_LITTLE: | |
1184 | arch = bfd_arch_a29k; | |
1185 | machine = 0; | |
1186 | break; | |
41f50af0 | 1187 | #endif |
89665c85 SC |
1188 | #ifdef ARMMAGIC |
1189 | case ARMMAGIC: | |
1190 | arch = bfd_arch_arm; | |
1191 | machine =0; | |
1192 | break; | |
1193 | #endif | |
0f268757 | 1194 | #ifdef MC68MAGIC |
9783e04a DM |
1195 | case MC68MAGIC: |
1196 | case M68MAGIC: | |
97eb2f0c | 1197 | #ifdef MC68KBCSMAGIC |
9783e04a | 1198 | case MC68KBCSMAGIC: |
97eb2f0c KR |
1199 | #endif |
1200 | #ifdef APOLLOM68KMAGIC | |
9783e04a | 1201 | case APOLLOM68KMAGIC: |
c188b0be DM |
1202 | #endif |
1203 | #ifdef LYNXCOFFMAGIC | |
9783e04a | 1204 | case LYNXCOFFMAGIC: |
97eb2f0c | 1205 | #endif |
9783e04a DM |
1206 | arch = bfd_arch_m68k; |
1207 | machine = 68020; | |
1208 | break; | |
0f268757 SC |
1209 | #endif |
1210 | #ifdef MC88MAGIC | |
9783e04a DM |
1211 | case MC88MAGIC: |
1212 | case MC88DMAGIC: | |
1213 | case MC88OMAGIC: | |
1214 | arch = bfd_arch_m88k; | |
1215 | machine = 88100; | |
1216 | break; | |
0f268757 | 1217 | #endif |
dc999ad9 | 1218 | #ifdef Z8KMAGIC |
9783e04a DM |
1219 | case Z8KMAGIC: |
1220 | arch = bfd_arch_z8k; | |
1221 | switch (internal_f->f_flags & F_MACHMASK) | |
1222 | { | |
1223 | case F_Z8001: | |
1224 | machine = bfd_mach_z8001; | |
1225 | break; | |
1226 | case F_Z8002: | |
1227 | machine = bfd_mach_z8002; | |
1228 | break; | |
1229 | default: | |
1230 | return false; | |
1231 | } | |
1232 | break; | |
dc999ad9 | 1233 | #endif |
cf587de8 ILT |
1234 | #ifdef I860 |
1235 | case I860MAGIC: | |
1236 | arch = bfd_arch_i860; | |
1237 | break; | |
1238 | #endif | |
0f268757 SC |
1239 | #ifdef I960 |
1240 | #ifdef I960ROMAGIC | |
9783e04a DM |
1241 | case I960ROMAGIC: |
1242 | case I960RWMAGIC: | |
1243 | arch = bfd_arch_i960; | |
1244 | switch (F_I960TYPE & internal_f->f_flags) | |
0f268757 SC |
1245 | { |
1246 | default: | |
1247 | case F_I960CORE: | |
0d740984 | 1248 | machine = bfd_mach_i960_core; |
0f268757 SC |
1249 | break; |
1250 | case F_I960KB: | |
0d740984 | 1251 | machine = bfd_mach_i960_kb_sb; |
0f268757 | 1252 | break; |
9783e04a | 1253 | case F_I960MC: |
0d740984 | 1254 | machine = bfd_mach_i960_mc; |
0f268757 SC |
1255 | break; |
1256 | case F_I960XA: | |
0d740984 | 1257 | machine = bfd_mach_i960_xa; |
0f268757 SC |
1258 | break; |
1259 | case F_I960CA: | |
0d740984 | 1260 | machine = bfd_mach_i960_ca; |
0f268757 SC |
1261 | break; |
1262 | case F_I960KA: | |
0d740984 | 1263 | machine = bfd_mach_i960_ka_sa; |
0f268757 | 1264 | break; |
b5b056fc KR |
1265 | /* start-sanitize-i960xl */ |
1266 | case F_I960XL: | |
1267 | machine = bfd_mach_i960_xl; | |
1268 | break; | |
1269 | /* end-sanitize-i960xl */ | |
0f268757 | 1270 | } |
9783e04a | 1271 | break; |
0f268757 SC |
1272 | #endif |
1273 | #endif | |
cbdc7909 | 1274 | |
dd984644 | 1275 | #ifdef RS6000COFF_C |
9783e04a DM |
1276 | case U802ROMAGIC: |
1277 | case U802WRMAGIC: | |
1278 | case U802TOCMAGIC: | |
dd984644 ILT |
1279 | { |
1280 | int cputype; | |
1281 | ||
1282 | if (xcoff_data (abfd)->cputype != -1) | |
1283 | cputype = xcoff_data (abfd)->cputype & 0xff; | |
1284 | else | |
1285 | { | |
1286 | /* We did not get a value from the a.out header. If the | |
1287 | file has not been stripped, we may be able to get the | |
1288 | architecture information from the first symbol, if it | |
1289 | is a .file symbol. */ | |
1290 | if (obj_raw_syment_count (abfd) == 0) | |
1291 | cputype = 0; | |
1292 | else | |
1293 | { | |
1294 | bfd_byte buf[SYMESZ]; | |
1295 | struct internal_syment sym; | |
1296 | ||
1297 | if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0 | |
1298 | || bfd_read (buf, 1, SYMESZ, abfd) != SYMESZ) | |
1299 | return false; | |
1300 | coff_swap_sym_in (abfd, (PTR) buf, (PTR) &sym); | |
1301 | if (sym.n_sclass == C_FILE) | |
1302 | cputype = sym.n_type & 0xff; | |
1303 | else | |
1304 | cputype = 0; | |
1305 | } | |
1306 | } | |
1307 | ||
1308 | /* FIXME: We don't handle all cases here. */ | |
1309 | switch (cputype) | |
1310 | { | |
1311 | default: | |
1312 | case 0: | |
db344f82 | 1313 | #ifdef POWERMAC |
dd984644 ILT |
1314 | /* PowerPC Macs use the same magic numbers as RS/6000 |
1315 | (because that's how they were bootstrapped originally), | |
1316 | but they are always PowerPC architecture. */ | |
1317 | arch = bfd_arch_powerpc; | |
c769947b | 1318 | machine = 0; |
db344f82 | 1319 | #else |
dd984644 ILT |
1320 | arch = bfd_arch_rs6000; |
1321 | machine = 6000; | |
db344f82 | 1322 | #endif /* POWERMAC */ |
dd984644 ILT |
1323 | break; |
1324 | ||
1325 | case 1: | |
1326 | arch = bfd_arch_powerpc; | |
1327 | machine = 601; | |
1328 | break; | |
1329 | case 2: /* 64 bit PowerPC */ | |
1330 | arch = bfd_arch_powerpc; | |
1331 | machine = 620; | |
1332 | break; | |
1333 | case 3: | |
1334 | arch = bfd_arch_powerpc; | |
1335 | machine = 0; | |
1336 | break; | |
1337 | case 4: | |
1338 | arch = bfd_arch_rs6000; | |
1339 | machine = 6000; | |
1340 | break; | |
1341 | } | |
1342 | } | |
9783e04a | 1343 | break; |
cbdc7909 JG |
1344 | #endif |
1345 | ||
dc999ad9 | 1346 | #ifdef WE32KMAGIC |
9783e04a DM |
1347 | case WE32KMAGIC: |
1348 | arch = bfd_arch_we32k; | |
1349 | machine = 0; | |
1350 | break; | |
dc999ad9 ILT |
1351 | #endif |
1352 | ||
3b4f1a5d | 1353 | #ifdef H8300MAGIC |
9783e04a DM |
1354 | case H8300MAGIC: |
1355 | arch = bfd_arch_h8300; | |
1356 | machine = bfd_mach_h8300; | |
1357 | /* !! FIXME this probably isn't the right place for this */ | |
1358 | abfd->flags |= BFD_IS_RELAXABLE; | |
1359 | break; | |
4d09e8ac JK |
1360 | #endif |
1361 | ||
1362 | #ifdef H8300HMAGIC | |
9783e04a DM |
1363 | case H8300HMAGIC: |
1364 | arch = bfd_arch_h8300; | |
1365 | machine = bfd_mach_h8300h; | |
1366 | /* !! FIXME this probably isn't the right place for this */ | |
1367 | abfd->flags |= BFD_IS_RELAXABLE; | |
1368 | break; | |
142ce43e SC |
1369 | #endif |
1370 | ||
f135c692 ILT |
1371 | #ifdef SH_ARCH_MAGIC_BIG |
1372 | case SH_ARCH_MAGIC_BIG: | |
1373 | case SH_ARCH_MAGIC_LITTLE: | |
9783e04a DM |
1374 | arch = bfd_arch_sh; |
1375 | machine = 0; | |
1376 | break; | |
9faacb92 SC |
1377 | #endif |
1378 | ||
142ce43e | 1379 | #ifdef H8500MAGIC |
9783e04a DM |
1380 | case H8500MAGIC: |
1381 | arch = bfd_arch_h8500; | |
1382 | machine = 0; | |
1383 | break; | |
3b4f1a5d | 1384 | #endif |
cbdc7909 | 1385 | |
c188b0be | 1386 | #ifdef SPARCMAGIC |
9783e04a | 1387 | case SPARCMAGIC: |
c16313f0 ILT |
1388 | #ifdef LYNXCOFFMAGIC |
1389 | case LYNXCOFFMAGIC: | |
1390 | #endif | |
9783e04a DM |
1391 | arch = bfd_arch_sparc; |
1392 | machine = 0; | |
1393 | break; | |
c188b0be DM |
1394 | #endif |
1395 | ||
9783e04a DM |
1396 | default: /* Unreadable input file type */ |
1397 | arch = bfd_arch_obscure; | |
1398 | break; | |
1399 | } | |
cbdc7909 | 1400 | |
9783e04a | 1401 | bfd_default_set_arch_mach (abfd, arch, machine); |
075caafd ILT |
1402 | return true; |
1403 | } | |
cbdc7909 | 1404 | |
075caafd | 1405 | #ifdef SYMNAME_IN_DEBUG |
6f715d66 | 1406 | |
075caafd | 1407 | static boolean |
57a1867e DM |
1408 | symname_in_debug_hook (abfd, sym) |
1409 | bfd * abfd; | |
1410 | struct internal_syment *sym; | |
075caafd ILT |
1411 | { |
1412 | return SYMNAME_IN_DEBUG (sym) ? true : false; | |
1413 | } | |
6f715d66 | 1414 | |
075caafd | 1415 | #else |
cbdc7909 | 1416 | |
075caafd ILT |
1417 | #define symname_in_debug_hook \ |
1418 | (boolean (*) PARAMS ((bfd *, struct internal_syment *))) bfd_false | |
cbdc7909 | 1419 | |
075caafd | 1420 | #endif |
7a8b18b6 | 1421 | |
c80cc833 ILT |
1422 | #ifdef RS6000COFF_C |
1423 | ||
0fc9ada9 | 1424 | /* Handle the csect auxent of a C_EXT or C_HIDEXT symbol. */ |
c80cc833 ILT |
1425 | |
1426 | static boolean coff_pointerize_aux_hook | |
1427 | PARAMS ((bfd *, combined_entry_type *, combined_entry_type *, | |
1428 | unsigned int, combined_entry_type *)); | |
1429 | ||
1430 | /*ARGSUSED*/ | |
1431 | static boolean | |
1432 | coff_pointerize_aux_hook (abfd, table_base, symbol, indaux, aux) | |
1433 | bfd *abfd; | |
1434 | combined_entry_type *table_base; | |
1435 | combined_entry_type *symbol; | |
1436 | unsigned int indaux; | |
1437 | combined_entry_type *aux; | |
1438 | { | |
1439 | int class = symbol->u.syment.n_sclass; | |
1440 | ||
0fc9ada9 ILT |
1441 | if ((class == C_EXT || class == C_HIDEXT) |
1442 | && indaux + 1 == symbol->u.syment.n_numaux) | |
1443 | { | |
1444 | if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) == XTY_LD) | |
1445 | { | |
1446 | aux->u.auxent.x_csect.x_scnlen.p = | |
1447 | table_base + aux->u.auxent.x_csect.x_scnlen.l; | |
1448 | aux->fix_scnlen = 1; | |
1449 | } | |
1450 | ||
1451 | /* Return true to indicate that the caller should not do any | |
1452 | further work on this auxent. */ | |
1453 | return true; | |
1454 | } | |
1455 | ||
1456 | /* Return false to indicate that this auxent should be handled by | |
1457 | the caller. */ | |
1458 | return false; | |
c80cc833 ILT |
1459 | } |
1460 | ||
1461 | #else | |
1462 | #ifdef I960 | |
1463 | ||
1464 | /* We don't want to pointerize bal entries. */ | |
1465 | ||
1466 | static boolean coff_pointerize_aux_hook | |
1467 | PARAMS ((bfd *, combined_entry_type *, combined_entry_type *, | |
1468 | unsigned int, combined_entry_type *)); | |
1469 | ||
1470 | /*ARGSUSED*/ | |
1471 | static boolean | |
1472 | coff_pointerize_aux_hook (abfd, table_base, symbol, indaux, aux) | |
1473 | bfd *abfd; | |
1474 | combined_entry_type *table_base; | |
1475 | combined_entry_type *symbol; | |
1476 | unsigned int indaux; | |
1477 | combined_entry_type *aux; | |
1478 | { | |
1479 | /* Return true if we don't want to pointerize this aux entry, which | |
1480 | is the case for the lastfirst aux entry for a C_LEAFPROC symbol. */ | |
a418e05d ILT |
1481 | return (indaux == 1 |
1482 | && (symbol->u.syment.n_sclass == C_LEAFPROC | |
1483 | || symbol->u.syment.n_sclass == C_LEAFSTAT | |
1484 | || symbol->u.syment.n_sclass == C_LEAFEXT)); | |
c80cc833 ILT |
1485 | } |
1486 | ||
1487 | #else /* ! I960 */ | |
1488 | ||
1489 | #define coff_pointerize_aux_hook 0 | |
1490 | ||
1491 | #endif /* ! I960 */ | |
1492 | #endif /* ! RS6000COFF_C */ | |
1493 | ||
0fc9ada9 ILT |
1494 | /* Print an aux entry. This returns true if it has printed it. */ |
1495 | ||
1496 | static boolean coff_print_aux | |
1497 | PARAMS ((bfd *, FILE *, combined_entry_type *, combined_entry_type *, | |
1498 | combined_entry_type *, unsigned int)); | |
1499 | ||
1500 | static boolean | |
1501 | coff_print_aux (abfd, file, table_base, symbol, aux, indaux) | |
1502 | bfd *abfd; | |
1503 | FILE *file; | |
1504 | combined_entry_type *table_base; | |
1505 | combined_entry_type *symbol; | |
1506 | combined_entry_type *aux; | |
1507 | unsigned int indaux; | |
1508 | { | |
1509 | #ifdef RS6000COFF_C | |
1510 | if ((symbol->u.syment.n_sclass == C_EXT | |
1511 | || symbol->u.syment.n_sclass == C_HIDEXT) | |
1512 | && indaux + 1 == symbol->u.syment.n_numaux) | |
1513 | { | |
1514 | /* This is a csect entry. */ | |
1515 | fprintf (file, "AUX "); | |
1516 | if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) != XTY_LD) | |
1517 | { | |
1518 | BFD_ASSERT (! aux->fix_scnlen); | |
1519 | fprintf (file, "val %5ld", aux->u.auxent.x_csect.x_scnlen.l); | |
1520 | } | |
1521 | else | |
1522 | { | |
1523 | fprintf (file, "indx "); | |
1524 | if (! aux->fix_scnlen) | |
1525 | fprintf (file, "%4ld", aux->u.auxent.x_csect.x_scnlen.l); | |
1526 | else | |
1527 | fprintf (file, "%4ld", | |
1528 | (long) (aux->u.auxent.x_csect.x_scnlen.p - table_base)); | |
1529 | } | |
1530 | fprintf (file, | |
1531 | " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u", | |
1532 | aux->u.auxent.x_csect.x_parmhash, | |
1533 | (unsigned int) aux->u.auxent.x_csect.x_snhash, | |
1534 | SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp), | |
1535 | SMTYP_ALIGN (aux->u.auxent.x_csect.x_smtyp), | |
1536 | (unsigned int) aux->u.auxent.x_csect.x_smclas, | |
1537 | aux->u.auxent.x_csect.x_stab, | |
1538 | (unsigned int) aux->u.auxent.x_csect.x_snstab); | |
1539 | return true; | |
1540 | } | |
1541 | #endif | |
1542 | ||
1543 | /* Return false to indicate that no special action was taken. */ | |
1544 | return false; | |
1545 | } | |
1546 | ||
9fda1a39 SC |
1547 | /* |
1548 | SUBSUBSECTION | |
c188b0be | 1549 | Writing relocations |
9fda1a39 | 1550 | |
c188b0be DM |
1551 | To write relocations, the back end steps though the |
1552 | canonical relocation table and create an | |
9fda1a39 | 1553 | @code{internal_reloc}. The symbol index to use is removed from |
c188b0be | 1554 | the @code{offset} field in the symbol table supplied. The |
9fda1a39 | 1555 | address comes directly from the sum of the section base |
c188b0be | 1556 | address and the relocation offset; the type is dug directly |
9fda1a39 SC |
1557 | from the howto field. Then the @code{internal_reloc} is |
1558 | swapped into the shape of an @code{external_reloc} and written | |
9783e04a | 1559 | out to disk. |
9fda1a39 | 1560 | |
6f715d66 | 1561 | */ |
0f268757 | 1562 | |
d19df9b5 ILT |
1563 | #ifdef TARG_AUX |
1564 | ||
1565 | static int compare_arelent_ptr PARAMS ((const PTR, const PTR)); | |
1566 | ||
1567 | /* AUX's ld wants relocations to be sorted */ | |
1568 | static int | |
1569 | compare_arelent_ptr (x, y) | |
1570 | const PTR x; | |
1571 | const PTR y; | |
1572 | { | |
1573 | const arelent **a = (const arelent **) x; | |
1574 | const arelent **b = (const arelent **) y; | |
1575 | bfd_size_type aadr = (*a)->address; | |
1576 | bfd_size_type badr = (*b)->address; | |
1577 | ||
1578 | return (aadr < badr ? -1 : badr < aadr ? 1 : 0); | |
1579 | } | |
1580 | ||
1581 | #endif /* TARG_AUX */ | |
1582 | ||
791a3db4 | 1583 | static boolean |
89665c85 | 1584 | coff_write_relocs (abfd, first_undef) |
57a1867e | 1585 | bfd * abfd; |
89665c85 | 1586 | int first_undef; |
6f715d66 | 1587 | { |
9783e04a | 1588 | asection *s; |
d19df9b5 | 1589 | |
9783e04a DM |
1590 | for (s = abfd->sections; s != (asection *) NULL; s = s->next) |
1591 | { | |
1592 | unsigned int i; | |
1593 | struct external_reloc dst; | |
d19df9b5 ILT |
1594 | arelent **p; |
1595 | ||
1596 | #ifndef TARG_AUX | |
1597 | p = s->orelocation; | |
1598 | #else | |
1599 | /* sort relocations before we write them out */ | |
1600 | p = (arelent **) bfd_malloc (s->reloc_count * sizeof (arelent *)); | |
1601 | if (p == NULL && s->reloc_count > 0) | |
1602 | return false; | |
1603 | memcpy (p, s->orelocation, s->reloc_count * sizeof (arelent *)); | |
1604 | qsort (p, s->reloc_count, sizeof (arelent *), compare_arelent_ptr); | |
1605 | #endif | |
9783e04a | 1606 | |
791a3db4 ILT |
1607 | if (bfd_seek (abfd, s->rel_filepos, SEEK_SET) != 0) |
1608 | return false; | |
9783e04a DM |
1609 | for (i = 0; i < s->reloc_count; i++) |
1610 | { | |
1611 | struct internal_reloc n; | |
1612 | arelent *q = p[i]; | |
1613 | memset ((PTR) & n, 0, sizeof (n)); | |
1614 | ||
89665c85 SC |
1615 | /* Now we've renumbered the symbols we know where the |
1616 | undefined symbols live in the table. Check the reloc | |
1617 | entries for symbols who's output bfd isn't the right one. | |
1618 | This is because the symbol was undefined (which means | |
1619 | that all the pointers are never made to point to the same | |
1620 | place). This is a bad thing,'cause the symbols attached | |
1621 | to the output bfd are indexed, so that the relocation | |
1622 | entries know which symbol index they point to. So we | |
1623 | have to look up the output symbol here. */ | |
1624 | ||
1625 | if (q->sym_ptr_ptr[0]->the_bfd != abfd) | |
1626 | { | |
1627 | int i; | |
1628 | const char *sname = q->sym_ptr_ptr[0]->name; | |
1629 | asymbol **outsyms = abfd->outsymbols; | |
1630 | for (i = first_undef; outsyms[i]; i++) | |
1631 | { | |
1632 | const char *intable = outsyms[i]->name; | |
1633 | if (strcmp (intable, sname) == 0) { | |
1634 | /* got a hit, so repoint the reloc */ | |
1635 | q->sym_ptr_ptr = outsyms + i; | |
1636 | break; | |
1637 | } | |
1638 | } | |
1639 | } | |
1640 | ||
9783e04a DM |
1641 | n.r_vaddr = q->address + s->vma; |
1642 | ||
1643 | #ifdef R_IHCONST | |
1644 | /* The 29k const/consth reloc pair is a real kludge. The consth | |
89665c85 SC |
1645 | part doesn't have a symbol; it has an offset. So rebuilt |
1646 | that here. */ | |
9783e04a DM |
1647 | if (q->howto->type == R_IHCONST) |
1648 | n.r_symndx = q->addend; | |
1649 | else | |
780c477a | 1650 | #endif |
89665c85 SC |
1651 | if (q->sym_ptr_ptr) |
1652 | { | |
1653 | if (q->sym_ptr_ptr == bfd_abs_section_ptr->symbol_ptr_ptr) | |
1654 | /* This is a relocation relative to the absolute symbol. */ | |
1655 | n.r_symndx = -1; | |
1656 | else | |
1657 | { | |
1658 | n.r_symndx = get_index ((*(q->sym_ptr_ptr))); | |
1659 | /* Take notice if the symbol reloc points to a symbol | |
1660 | we don't have in our symbol table. What should we | |
1661 | do for this?? */ | |
1662 | if (n.r_symndx > obj_conv_table_size (abfd)) | |
1663 | abort (); | |
1664 | } | |
1665 | } | |
780c477a | 1666 | |
cd83759c | 1667 | #ifdef SWAP_OUT_RELOC_OFFSET |
9783e04a | 1668 | n.r_offset = q->addend; |
cd83759c | 1669 | #endif |
c26d7d17 | 1670 | |
0f268757 | 1671 | #ifdef SELECT_RELOC |
9783e04a DM |
1672 | /* Work out reloc type from what is required */ |
1673 | SELECT_RELOC (n, q->howto); | |
0f268757 | 1674 | #else |
9783e04a | 1675 | n.r_type = q->howto->type; |
0f268757 | 1676 | #endif |
9783e04a | 1677 | coff_swap_reloc_out (abfd, &n, &dst); |
791a3db4 ILT |
1678 | if (bfd_write ((PTR) & dst, 1, RELSZ, abfd) != RELSZ) |
1679 | return false; | |
9783e04a | 1680 | } |
d19df9b5 ILT |
1681 | |
1682 | #ifdef TARG_AUX | |
1683 | if (p != NULL) | |
1684 | free (p); | |
1685 | #endif | |
0f268757 | 1686 | } |
791a3db4 ILT |
1687 | |
1688 | return true; | |
6f715d66 | 1689 | } |
7a8b18b6 SC |
1690 | |
1691 | /* Set flags and magic number of a coff file from architecture and machine | |
1692 | type. Result is true if we can represent the arch&type, false if not. */ | |
0f268757 | 1693 | |
9783e04a | 1694 | static boolean |
57a1867e DM |
1695 | coff_set_flags (abfd, magicp, flagsp) |
1696 | bfd * abfd; | |
1697 | unsigned *magicp; | |
1698 | unsigned short *flagsp; | |
6f715d66 | 1699 | { |
9783e04a | 1700 | switch (bfd_get_arch (abfd)) |
dc999ad9 | 1701 | { |
9783e04a DM |
1702 | #ifdef Z8KMAGIC |
1703 | case bfd_arch_z8k: | |
1704 | *magicp = Z8KMAGIC; | |
1705 | switch (bfd_get_mach (abfd)) | |
1706 | { | |
1707 | case bfd_mach_z8001: | |
1708 | *flagsp = F_Z8001; | |
1709 | break; | |
1710 | case bfd_mach_z8002: | |
1711 | *flagsp = F_Z8002; | |
1712 | break; | |
1713 | default: | |
1714 | return false; | |
1715 | } | |
1716 | return true; | |
dc999ad9 | 1717 | #endif |
0f268757 | 1718 | #ifdef I960ROMAGIC |
cbdc7909 | 1719 | |
3b4f1a5d | 1720 | case bfd_arch_i960: |
cbdc7909 | 1721 | |
6f715d66 | 1722 | { |
9783e04a | 1723 | unsigned flags; |
6f715d66 SC |
1724 | *magicp = I960ROMAGIC; |
1725 | /* | |
1726 | ((bfd_get_file_flags(abfd) & WP_TEXT) ? I960ROMAGIC : | |
1727 | I960RWMAGIC); FIXME??? | |
1728 | */ | |
9783e04a DM |
1729 | switch (bfd_get_mach (abfd)) |
1730 | { | |
1731 | case bfd_mach_i960_core: | |
1732 | flags = F_I960CORE; | |
1733 | break; | |
1734 | case bfd_mach_i960_kb_sb: | |
1735 | flags = F_I960KB; | |
1736 | break; | |
1737 | case bfd_mach_i960_mc: | |
1738 | flags = F_I960MC; | |
1739 | break; | |
1740 | case bfd_mach_i960_xa: | |
1741 | flags = F_I960XA; | |
1742 | break; | |
1743 | case bfd_mach_i960_ca: | |
1744 | flags = F_I960CA; | |
1745 | break; | |
1746 | case bfd_mach_i960_ka_sa: | |
1747 | flags = F_I960KA; | |
1748 | break; | |
b5b056fc KR |
1749 | /* start-sanitize-i960xl */ |
1750 | case bfd_mach_i960_xl: | |
1751 | flags = F_I960XL; | |
1752 | break; | |
1753 | /* end-sanitize-i960xl */ | |
9783e04a DM |
1754 | default: |
1755 | return false; | |
1756 | } | |
6f715d66 SC |
1757 | *flagsp = flags; |
1758 | return true; | |
1759 | } | |
9783e04a | 1760 | break; |
0f268757 | 1761 | #endif |
89665c85 SC |
1762 | #ifdef ARMMAGIC |
1763 | case bfd_arch_arm: | |
1764 | *magicp = ARMMAGIC; | |
1765 | return true; | |
1766 | #endif | |
80b2dd82 KK |
1767 | #ifdef PPCMAGIC |
1768 | case bfd_arch_powerpc: | |
1769 | *magicp = PPCMAGIC; | |
1770 | return true; | |
1771 | break; | |
1772 | #endif | |
20fdc627 | 1773 | #ifdef I386MAGIC |
9783e04a DM |
1774 | case bfd_arch_i386: |
1775 | *magicp = I386MAGIC; | |
c188b0be | 1776 | #ifdef LYNXOS |
9783e04a DM |
1777 | /* Just overwrite the usual value if we're doing Lynx. */ |
1778 | *magicp = LYNXCOFFMAGIC; | |
c188b0be | 1779 | #endif |
9783e04a DM |
1780 | return true; |
1781 | break; | |
20fdc627 | 1782 | #endif |
cf587de8 ILT |
1783 | #ifdef I860MAGIC |
1784 | case bfd_arch_i860: | |
1785 | *magicp = I860MAGIC; | |
1786 | return true; | |
1787 | break; | |
1788 | #endif | |
0f268757 | 1789 | #ifdef MC68MAGIC |
9783e04a | 1790 | case bfd_arch_m68k: |
97eb2f0c | 1791 | #ifdef APOLLOM68KMAGIC |
9783e04a | 1792 | *magicp = APOLLO_COFF_VERSION_NUMBER; |
97eb2f0c | 1793 | #else |
9783e04a | 1794 | *magicp = MC68MAGIC; |
c188b0be DM |
1795 | #endif |
1796 | #ifdef LYNXOS | |
9783e04a DM |
1797 | /* Just overwrite the usual value if we're doing Lynx. */ |
1798 | *magicp = LYNXCOFFMAGIC; | |
97eb2f0c | 1799 | #endif |
9783e04a DM |
1800 | return true; |
1801 | break; | |
0f268757 | 1802 | #endif |
cbdc7909 | 1803 | |
0f268757 | 1804 | #ifdef MC88MAGIC |
3b4f1a5d SC |
1805 | case bfd_arch_m88k: |
1806 | *magicp = MC88OMAGIC; | |
1807 | return true; | |
1808 | break; | |
1809 | #endif | |
1810 | #ifdef H8300MAGIC | |
1811 | case bfd_arch_h8300: | |
9783e04a DM |
1812 | switch (bfd_get_mach (abfd)) |
1813 | { | |
1814 | case bfd_mach_h8300: | |
1815 | *magicp = H8300MAGIC; | |
1816 | return true; | |
1817 | case bfd_mach_h8300h: | |
1818 | *magicp = H8300HMAGIC; | |
1819 | return true; | |
1820 | } | |
3b4f1a5d | 1821 | break; |
0f268757 | 1822 | #endif |
9faacb92 | 1823 | |
f135c692 | 1824 | #ifdef SH_ARCH_MAGIC_BIG |
9783e04a | 1825 | case bfd_arch_sh: |
d812945a | 1826 | if (bfd_big_endian (abfd)) |
f135c692 ILT |
1827 | *magicp = SH_ARCH_MAGIC_BIG; |
1828 | else | |
1829 | *magicp = SH_ARCH_MAGIC_LITTLE; | |
9faacb92 SC |
1830 | return true; |
1831 | break; | |
1832 | #endif | |
1833 | ||
c188b0be | 1834 | #ifdef SPARCMAGIC |
9783e04a DM |
1835 | case bfd_arch_sparc: |
1836 | *magicp = SPARCMAGIC; | |
c188b0be | 1837 | #ifdef LYNXOS |
9783e04a DM |
1838 | /* Just overwrite the usual value if we're doing Lynx. */ |
1839 | *magicp = LYNXCOFFMAGIC; | |
c188b0be | 1840 | #endif |
9783e04a DM |
1841 | return true; |
1842 | break; | |
c188b0be DM |
1843 | #endif |
1844 | ||
142ce43e SC |
1845 | #ifdef H8500MAGIC |
1846 | case bfd_arch_h8500: | |
1847 | *magicp = H8500MAGIC; | |
1848 | return true; | |
1849 | break; | |
1850 | #endif | |
41f50af0 | 1851 | #ifdef A29K_MAGIC_BIG |
3b4f1a5d | 1852 | case bfd_arch_a29k: |
d812945a | 1853 | if (bfd_big_endian (abfd)) |
9783e04a | 1854 | *magicp = A29K_MAGIC_BIG; |
3b4f1a5d | 1855 | else |
9783e04a | 1856 | *magicp = A29K_MAGIC_LITTLE; |
3b4f1a5d SC |
1857 | return true; |
1858 | break; | |
41f50af0 | 1859 | #endif |
cbdc7909 | 1860 | |
dc999ad9 | 1861 | #ifdef WE32KMAGIC |
9783e04a DM |
1862 | case bfd_arch_we32k: |
1863 | *magicp = WE32KMAGIC; | |
1864 | return true; | |
1865 | break; | |
dc999ad9 ILT |
1866 | #endif |
1867 | ||
cbdc7909 | 1868 | #ifdef U802TOCMAGIC |
9783e04a | 1869 | case bfd_arch_rs6000: |
80b2dd82 | 1870 | #ifndef PPCMAGIC |
09a28207 | 1871 | case bfd_arch_powerpc: |
80b2dd82 | 1872 | #endif |
9783e04a DM |
1873 | *magicp = U802TOCMAGIC; |
1874 | return true; | |
1875 | break; | |
cbdc7909 JG |
1876 | #endif |
1877 | ||
9783e04a DM |
1878 | default: /* Unknown architecture */ |
1879 | /* return false; -- fall through to "return false" below, to avoid | |
cbdc7909 | 1880 | "statement never reached" errors on the one below. */ |
9783e04a DM |
1881 | break; |
1882 | } | |
cbdc7909 | 1883 | |
6f715d66 SC |
1884 | return false; |
1885 | } | |
0f268757 SC |
1886 | |
1887 | ||
9783e04a | 1888 | static boolean |
57a1867e DM |
1889 | coff_set_arch_mach (abfd, arch, machine) |
1890 | bfd * abfd; | |
1891 | enum bfd_architecture arch; | |
1892 | unsigned long machine; | |
6f715d66 | 1893 | { |
9783e04a DM |
1894 | unsigned dummy1; |
1895 | unsigned short dummy2; | |
c16313f0 ILT |
1896 | |
1897 | if (! bfd_default_set_arch_mach (abfd, arch, machine)) | |
1898 | return false; | |
0d740984 SC |
1899 | |
1900 | if (arch != bfd_arch_unknown && | |
9783e04a | 1901 | coff_set_flags (abfd, &dummy1, &dummy2) != true) |
0d740984 | 1902 | return false; /* We can't represent this type */ |
c16313f0 | 1903 | |
0d740984 SC |
1904 | return true; /* We're easy ... */ |
1905 | } | |
0f268757 SC |
1906 | |
1907 | ||
1908 | /* Calculate the file position for each section. */ | |
1909 | ||
cbdc7909 | 1910 | static void |
57a1867e DM |
1911 | coff_compute_section_file_positions (abfd) |
1912 | bfd * abfd; | |
6f715d66 | 1913 | { |
9783e04a DM |
1914 | asection *current; |
1915 | asection *previous = (asection *) NULL; | |
1916 | file_ptr sofar = FILHSZ; | |
275143eb | 1917 | |
55c95b04 | 1918 | #ifndef I960 |
9783e04a | 1919 | file_ptr old_sofar; |
55c95b04 | 1920 | #endif |
69645d10 ILT |
1921 | unsigned int count; |
1922 | ||
a418e05d ILT |
1923 | #ifdef RS6000COFF_C |
1924 | /* On XCOFF, if we have symbols, set up the .debug section. */ | |
1925 | if (bfd_get_symcount (abfd) > 0) | |
1926 | { | |
1927 | bfd_size_type sz; | |
1928 | bfd_size_type i, symcount; | |
1929 | asymbol **symp; | |
1930 | ||
1931 | sz = 0; | |
1932 | symcount = bfd_get_symcount (abfd); | |
1933 | for (symp = abfd->outsymbols, i = 0; i < symcount; symp++, i++) | |
1934 | { | |
1935 | coff_symbol_type *cf; | |
1936 | ||
1937 | cf = coff_symbol_from (abfd, *symp); | |
1938 | if (cf != NULL | |
1939 | && cf->native != NULL | |
1940 | && SYMNAME_IN_DEBUG (&cf->native->u.syment)) | |
1941 | { | |
1942 | size_t len; | |
1943 | ||
1944 | len = strlen (bfd_asymbol_name (*symp)); | |
1945 | if (len > SYMNMLEN) | |
1946 | sz += len + 3; | |
1947 | } | |
1948 | } | |
1949 | if (sz > 0) | |
1950 | { | |
1951 | asection *dsec; | |
1952 | ||
1953 | dsec = bfd_make_section_old_way (abfd, ".debug"); | |
1954 | if (dsec == NULL) | |
1955 | abort (); | |
1956 | dsec->_raw_size = sz; | |
1957 | dsec->flags |= SEC_HAS_CONTENTS; | |
1958 | } | |
1959 | } | |
1960 | #endif | |
c7f6ebe2 | 1961 | |
3ea928f5 | 1962 | #ifdef COFF_IMAGE_WITH_PE |
275143eb | 1963 | int page_size; |
c7f6ebe2 SC |
1964 | if (coff_data (abfd)->link_info) |
1965 | { | |
beee31b1 | 1966 | page_size = pe_data (abfd)->pe_opthdr.FileAlignment; |
c7f6ebe2 SC |
1967 | } |
1968 | else | |
1969 | page_size = PE_DEF_FILE_ALIGNMENT; | |
a418e05d ILT |
1970 | #else |
1971 | #ifdef COFF_PAGE_SIZE | |
275143eb | 1972 | int page_size = COFF_PAGE_SIZE; |
a418e05d | 1973 | #endif |
3ea928f5 | 1974 | #endif |
275143eb | 1975 | |
9783e04a DM |
1976 | if (bfd_get_start_address (abfd)) |
1977 | { | |
1978 | /* A start address may have been added to the original file. In this | |
c7f6ebe2 | 1979 | case it will need an optional header to record it. */ |
9783e04a DM |
1980 | abfd->flags |= EXEC_P; |
1981 | } | |
85e0c721 | 1982 | |
e98e6ec1 | 1983 | if (abfd->flags & EXEC_P) |
9783e04a | 1984 | sofar += AOUTSZ; |
dd984644 | 1985 | #ifdef RS6000COFF_C |
867d923d ILT |
1986 | else if (xcoff_data (abfd)->full_aouthdr) |
1987 | sofar += AOUTSZ; | |
dd984644 ILT |
1988 | else |
1989 | sofar += SMALL_AOUTSZ; | |
1990 | #endif | |
cbdc7909 | 1991 | |
e98e6ec1 | 1992 | sofar += abfd->section_count * SCNHSZ; |
c769947b SS |
1993 | |
1994 | #ifdef RS6000COFF_C | |
1995 | /* XCOFF handles overflows in the reloc and line number count fields | |
1996 | by allocating a new section header to hold the correct counts. */ | |
1997 | for (current = abfd->sections; current != NULL; current = current->next) | |
1998 | if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff) | |
1999 | sofar += SCNHSZ; | |
2000 | #endif | |
2001 | ||
69645d10 | 2002 | for (current = abfd->sections, count = 1; |
9783e04a | 2003 | current != (asection *) NULL; |
69645d10 | 2004 | current = current->next, ++count) |
9783e04a | 2005 | { |
69645d10 | 2006 | current->target_index = count; |
cbdc7909 | 2007 | |
e98e6ec1 SC |
2008 | /* Only deal with sections which have contents */ |
2009 | if (!(current->flags & SEC_HAS_CONTENTS)) | |
9783e04a | 2010 | continue; |
cbdc7909 | 2011 | |
89665c85 SC |
2012 | #ifdef COFF_WITH_PE |
2013 | /* Do not include the .junk section. This is where we collect section | |
2014 | data which we don't need. This is mainly the MS .debug$ data which | |
2015 | stores codeview debug data. */ | |
2016 | if (strcmp (current->name, ".junk") == 0) | |
2017 | { | |
c7f6ebe2 | 2018 | continue; |
89665c85 SC |
2019 | } |
2020 | #endif | |
2021 | ||
e98e6ec1 SC |
2022 | /* Align the sections in the file to the same boundary on |
2023 | which they are aligned in virtual memory. I960 doesn't | |
2024 | do this (FIXME) so we can stay in sync with Intel. 960 | |
2025 | doesn't yet page from files... */ | |
0f268757 | 2026 | #ifndef I960 |
31a52a51 ILT |
2027 | if ((abfd->flags & EXEC_P) != 0) |
2028 | { | |
2029 | /* make sure this section is aligned on the right boundary - by | |
2030 | padding the previous section up if necessary */ | |
e98e6ec1 | 2031 | |
31a52a51 ILT |
2032 | old_sofar = sofar; |
2033 | sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); | |
2034 | if (previous != (asection *) NULL) | |
2035 | { | |
2036 | previous->_raw_size += sofar - old_sofar; | |
2037 | } | |
2038 | } | |
85e0c721 | 2039 | |
0f268757 | 2040 | #endif |
b5b056fc | 2041 | |
b5b056fc KR |
2042 | /* In demand paged files the low order bits of the file offset |
2043 | must match the low order bits of the virtual address. */ | |
275143eb | 2044 | #ifdef COFF_PAGE_SIZE |
e8fbe6d9 ILT |
2045 | if ((abfd->flags & D_PAGED) != 0 |
2046 | && (current->flags & SEC_ALLOC) != 0) | |
3ea928f5 | 2047 | sofar += (current->vma - sofar) % page_size; |
275143eb | 2048 | #endif |
e98e6ec1 | 2049 | current->filepos = sofar; |
85e0c721 | 2050 | |
beee31b1 SC |
2051 | #ifdef COFF_IMAGE_WITH_PE |
2052 | /* With PE we have to pad each section to be a multiple of its page size | |
2053 | too, and remember both sizes. Cooked_size becomes very useful. */ | |
2054 | current->_cooked_size = current->_raw_size; | |
2055 | current->_raw_size = (current->_raw_size + page_size -1) & -page_size; | |
2056 | #endif | |
2057 | ||
5e167886 | 2058 | sofar += current->_raw_size; |
beee31b1 | 2059 | |
5e167886 | 2060 | #ifndef I960 |
e98e6ec1 | 2061 | /* make sure that this section is of the right size too */ |
9783e04a DM |
2062 | old_sofar = sofar; |
2063 | sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); | |
2064 | current->_raw_size += sofar - old_sofar; | |
5e167886 | 2065 | #endif |
85e0c721 | 2066 | |
35d835c4 JK |
2067 | #ifdef _LIB |
2068 | /* Force .lib sections to start at zero. The vma is then | |
2069 | incremented in coff_set_section_contents. This is right for | |
2070 | SVR3.2. */ | |
2071 | if (strcmp (current->name, _LIB) == 0) | |
2072 | bfd_set_section_vma (abfd, current, 0); | |
2073 | #endif | |
2074 | ||
e98e6ec1 | 2075 | previous = current; |
85e0c721 | 2076 | } |
89665c85 | 2077 | |
9783e04a | 2078 | obj_relocbase (abfd) = sofar; |
69645d10 | 2079 | abfd->output_has_begun = true; |
89665c85 | 2080 | |
6f715d66 | 2081 | } |
0f268757 | 2082 | |
9783e04a DM |
2083 | #ifndef RS6000COFF_C |
2084 | ||
8070f29d KR |
2085 | /* If .file, .text, .data, .bss symbols are missing, add them. */ |
2086 | /* @@ Should we only be adding missing symbols, or overriding the aux | |
2087 | values for existing section symbols? */ | |
9783e04a | 2088 | static boolean |
8070f29d KR |
2089 | coff_add_missing_symbols (abfd) |
2090 | bfd *abfd; | |
2091 | { | |
2092 | unsigned int nsyms = bfd_get_symcount (abfd); | |
2093 | asymbol **sympp = abfd->outsymbols; | |
2094 | asymbol **sympp2; | |
2095 | unsigned int i; | |
2096 | int need_text = 1, need_data = 1, need_bss = 1, need_file = 1; | |
0f268757 | 2097 | |
8070f29d KR |
2098 | for (i = 0; i < nsyms; i++) |
2099 | { | |
2100 | coff_symbol_type *csym = coff_symbol_from (abfd, sympp[i]); | |
2101 | CONST char *name; | |
9783e04a | 2102 | if (csym) |
8070f29d | 2103 | { |
9783e04a DM |
2104 | /* only do this if there is a coff representation of the input |
2105 | symbol */ | |
2106 | if (csym->native && csym->native->u.syment.n_sclass == C_FILE) | |
2107 | { | |
2108 | need_file = 0; | |
2109 | continue; | |
2110 | } | |
2111 | name = csym->symbol.name; | |
2112 | if (!name) | |
2113 | continue; | |
2114 | if (!strcmp (name, _TEXT)) | |
2115 | need_text = 0; | |
97eb2f0c | 2116 | #ifdef APOLLO_M68 |
9783e04a DM |
2117 | else if (!strcmp (name, ".wtext")) |
2118 | need_text = 0; | |
97eb2f0c | 2119 | #endif |
9783e04a DM |
2120 | else if (!strcmp (name, _DATA)) |
2121 | need_data = 0; | |
2122 | else if (!strcmp (name, _BSS)) | |
2123 | need_bss = 0; | |
2124 | } | |
8070f29d KR |
2125 | } |
2126 | /* Now i == bfd_get_symcount (abfd). */ | |
2127 | /* @@ For now, don't deal with .file symbol. */ | |
2128 | need_file = 0; | |
2129 | ||
2130 | if (!need_text && !need_data && !need_bss && !need_file) | |
9783e04a | 2131 | return true; |
8070f29d | 2132 | nsyms += need_text + need_data + need_bss + need_file; |
9783e04a DM |
2133 | sympp2 = (asymbol **) bfd_alloc_by_size_t (abfd, nsyms * sizeof (asymbol *)); |
2134 | if (!sympp2) | |
a9713b91 | 2135 | return false; |
8070f29d KR |
2136 | memcpy (sympp2, sympp, i * sizeof (asymbol *)); |
2137 | if (need_file) | |
2138 | { | |
2139 | /* @@ Generate fake .file symbol, in sympp2[i], and increment i. */ | |
2140 | abort (); | |
2141 | } | |
2142 | if (need_text) | |
2143 | sympp2[i++] = coff_section_symbol (abfd, _TEXT); | |
2144 | if (need_data) | |
2145 | sympp2[i++] = coff_section_symbol (abfd, _DATA); | |
2146 | if (need_bss) | |
2147 | sympp2[i++] = coff_section_symbol (abfd, _BSS); | |
9465d03e | 2148 | BFD_ASSERT (i == nsyms); |
8070f29d | 2149 | bfd_set_symtab (abfd, sympp2, nsyms); |
9783e04a | 2150 | return true; |
8070f29d | 2151 | } |
0f268757 | 2152 | |
9783e04a DM |
2153 | #endif /* ! defined (RS6000COFF_C) */ |
2154 | ||
e9614321 | 2155 | |
89665c85 | 2156 | |
0f268757 SC |
2157 | /* SUPPRESS 558 */ |
2158 | /* SUPPRESS 529 */ | |
9783e04a | 2159 | static boolean |
57a1867e DM |
2160 | coff_write_object_contents (abfd) |
2161 | bfd * abfd; | |
e98e6ec1 | 2162 | { |
9783e04a | 2163 | asection *current; |
9783e04a DM |
2164 | boolean hasrelocs = false; |
2165 | boolean haslinno = false; | |
dd984644 | 2166 | file_ptr scn_base; |
9783e04a DM |
2167 | file_ptr reloc_base; |
2168 | file_ptr lineno_base; | |
2169 | file_ptr sym_base; | |
9783e04a DM |
2170 | unsigned long reloc_size = 0; |
2171 | unsigned long lnno_size = 0; | |
2172 | asection *text_sec = NULL; | |
2173 | asection *data_sec = NULL; | |
2174 | asection *bss_sec = NULL; | |
cbdc7909 | 2175 | |
e98e6ec1 SC |
2176 | struct internal_filehdr internal_f; |
2177 | struct internal_aouthdr internal_a; | |
cbdc7909 | 2178 | |
57a1867e | 2179 | bfd_set_error (bfd_error_system_call); |
6590a8c9 | 2180 | |
0f268757 SC |
2181 | /* Make a pass through the symbol table to count line number entries and |
2182 | put them into the correct asections */ | |
cbdc7909 | 2183 | |
9783e04a | 2184 | lnno_size = coff_count_linenumbers (abfd) * LINESZ; |
cbdc7909 | 2185 | |
c769947b SS |
2186 | if (abfd->output_has_begun == false) |
2187 | coff_compute_section_file_positions (abfd); | |
2188 | ||
2189 | reloc_base = obj_relocbase (abfd); | |
2190 | ||
0f268757 | 2191 | /* Work out the size of the reloc and linno areas */ |
cbdc7909 | 2192 | |
e98e6ec1 | 2193 | for (current = abfd->sections; current != NULL; current = |
9783e04a | 2194 | current->next) |
69645d10 | 2195 | reloc_size += current->reloc_count * RELSZ; |
cbdc7909 | 2196 | |
0f268757 SC |
2197 | lineno_base = reloc_base + reloc_size; |
2198 | sym_base = lineno_base + lnno_size; | |
cbdc7909 | 2199 | |
0f268757 | 2200 | /* Indicate in each section->line_filepos its actual file address */ |
e98e6ec1 | 2201 | for (current = abfd->sections; current != NULL; current = |
9783e04a | 2202 | current->next) |
e98e6ec1 | 2203 | { |
69645d10 | 2204 | if (current->lineno_count) |
9783e04a | 2205 | { |
69645d10 ILT |
2206 | current->line_filepos = lineno_base; |
2207 | current->moving_line_filepos = lineno_base; | |
2208 | lineno_base += current->lineno_count * LINESZ; | |
2209 | } | |
2210 | else | |
2211 | { | |
2212 | current->line_filepos = 0; | |
2213 | } | |
2214 | if (current->reloc_count) | |
2215 | { | |
2216 | current->rel_filepos = reloc_base; | |
2217 | reloc_base += current->reloc_count * RELSZ; | |
2218 | } | |
2219 | else | |
2220 | { | |
2221 | current->rel_filepos = 0; | |
e98e6ec1 | 2222 | } |
0f268757 | 2223 | } |
9783e04a | 2224 | |
e98e6ec1 SC |
2225 | /* Write section headers to the file. */ |
2226 | internal_f.f_nscns = 0; | |
89665c85 | 2227 | |
dd984644 ILT |
2228 | if ((abfd->flags & EXEC_P) != 0) |
2229 | scn_base = FILHSZ + AOUTSZ; | |
2230 | else | |
2231 | { | |
2232 | scn_base = FILHSZ; | |
2233 | #ifdef RS6000COFF_C | |
867d923d ILT |
2234 | if (xcoff_data (abfd)->full_aouthdr) |
2235 | scn_base += AOUTSZ; | |
2236 | else | |
2237 | scn_base += SMALL_AOUTSZ; | |
dd984644 ILT |
2238 | #endif |
2239 | } | |
2240 | ||
2241 | if (bfd_seek (abfd, scn_base, SEEK_SET) != 0) | |
3332ea9c | 2242 | return false; |
cbdc7909 | 2243 | |
3332ea9c SC |
2244 | for (current = abfd->sections; |
2245 | current != NULL; | |
2246 | current = current->next) | |
2247 | { | |
2248 | struct internal_scnhdr section; | |
69645d10 | 2249 | |
89665c85 | 2250 | #ifdef COFF_WITH_PE |
3332ea9c SC |
2251 | /* Do not include the .junk section. This is where we collect section |
2252 | data which we don't need. This is mainly the MS .debug$ data which | |
2253 | stores codeview debug data. */ | |
2254 | if (strcmp (current->name, ".junk") == 0) | |
2255 | { | |
2256 | continue; | |
2257 | } | |
beee31b1 SC |
2258 | |
2259 | /* If we've got a .reloc section, remember. */ | |
2260 | ||
dd984644 | 2261 | #ifdef COFF_IMAGE_WITH_PE |
beee31b1 SC |
2262 | if (strcmp (current->name, ".reloc") == 0) |
2263 | { | |
2264 | pe_data (abfd)->has_reloc_section = 1; | |
2265 | } | |
dd984644 ILT |
2266 | #endif |
2267 | ||
89665c85 | 2268 | #endif |
3332ea9c SC |
2269 | internal_f.f_nscns++; |
2270 | strncpy (&(section.s_name[0]), current->name, 8); | |
b26059aa | 2271 | #ifdef _LIB |
3332ea9c SC |
2272 | /* Always set s_vaddr of .lib to 0. This is right for SVR3.2 |
2273 | Ian Taylor <ian@cygnus.com>. */ | |
2274 | if (strcmp (current->name, _LIB) == 0) | |
2275 | section.s_vaddr = 0; | |
2276 | else | |
69645d10 | 2277 | #endif |
010a405a | 2278 | section.s_vaddr = current->vma; |
3332ea9c | 2279 | section.s_paddr = current->lma; |
beee31b1 SC |
2280 | section.s_size = current->_raw_size; |
2281 | ||
2282 | #ifdef COFF_WITH_PE | |
2283 | section.s_paddr = current->_cooked_size; | |
2284 | #endif | |
3332ea9c SC |
2285 | |
2286 | /* | |
2287 | If this section has no size or is unloadable then the scnptr | |
2288 | will be 0 too | |
2289 | */ | |
2290 | if (current->_raw_size == 0 || | |
2291 | (current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
2292 | { | |
2293 | section.s_scnptr = 0; | |
2294 | } | |
2295 | else | |
2296 | { | |
2297 | section.s_scnptr = current->filepos; | |
2298 | } | |
2299 | section.s_relptr = current->rel_filepos; | |
2300 | section.s_lnnoptr = current->line_filepos; | |
2301 | section.s_nreloc = current->reloc_count; | |
2302 | section.s_nlnno = current->lineno_count; | |
2303 | if (current->reloc_count != 0) | |
2304 | hasrelocs = true; | |
2305 | if (current->lineno_count != 0) | |
2306 | haslinno = true; | |
2307 | ||
c769947b SS |
2308 | #ifdef RS6000COFF_C |
2309 | /* Indicate the use of an XCOFF overflow section header. */ | |
2310 | if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff) | |
2311 | { | |
2312 | section.s_nreloc = 0xffff; | |
2313 | section.s_nlnno = 0xffff; | |
2314 | } | |
2315 | #endif | |
2316 | ||
3332ea9c SC |
2317 | section.s_flags = sec_to_styp_flags (current->name, current->flags); |
2318 | ||
2319 | if (!strcmp (current->name, _TEXT)) | |
2320 | { | |
2321 | text_sec = current; | |
2322 | } | |
2323 | else if (!strcmp (current->name, _DATA)) | |
2324 | { | |
2325 | data_sec = current; | |
3332ea9c SC |
2326 | } |
2327 | else if (!strcmp (current->name, _BSS)) | |
2328 | { | |
2329 | bss_sec = current; | |
2330 | } | |
cbdc7909 | 2331 | |
0f268757 | 2332 | #ifdef I960 |
3332ea9c SC |
2333 | section.s_align = (current->alignment_power |
2334 | ? 1 << current->alignment_power | |
2335 | : 0); | |
2336 | ||
2337 | #endif | |
0f268757 | 2338 | |
3332ea9c SC |
2339 | #ifdef COFF_IMAGE_WITH_PE |
2340 | /* suppress output of the sections if they are null. ld includes | |
2341 | the bss and data sections even if there is no size assigned | |
2342 | to them. NT loader doesn't like it if these section headers are | |
2343 | included if the sections themselves are not needed */ | |
2344 | if (section.s_size == 0) | |
2345 | internal_f.f_nscns--; | |
2346 | else | |
0f268757 | 2347 | #endif |
69645d10 ILT |
2348 | { |
2349 | SCNHDR buff; | |
3332ea9c SC |
2350 | if (coff_swap_scnhdr_out (abfd, §ion, &buff) == 0 |
2351 | || bfd_write ((PTR) (&buff), 1, SCNHSZ, abfd) != SCNHSZ) | |
2352 | return false; | |
69645d10 | 2353 | } |
3332ea9c SC |
2354 | } |
2355 | ||
c769947b SS |
2356 | #ifdef RS6000COFF_C |
2357 | /* XCOFF handles overflows in the reloc and line number count fields | |
2358 | by creating a new section header to hold the correct values. */ | |
2359 | for (current = abfd->sections; current != NULL; current = current->next) | |
2360 | { | |
2361 | if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff) | |
2362 | { | |
2363 | struct internal_scnhdr scnhdr; | |
2364 | SCNHDR buff; | |
e98e6ec1 | 2365 | |
c769947b SS |
2366 | internal_f.f_nscns++; |
2367 | strncpy (&(scnhdr.s_name[0]), current->name, 8); | |
2368 | scnhdr.s_paddr = current->reloc_count; | |
2369 | scnhdr.s_vaddr = current->lineno_count; | |
2370 | scnhdr.s_size = 0; | |
2371 | scnhdr.s_scnptr = 0; | |
2372 | scnhdr.s_relptr = current->rel_filepos; | |
2373 | scnhdr.s_lnnoptr = current->line_filepos; | |
2374 | scnhdr.s_nreloc = current->target_index; | |
2375 | scnhdr.s_nlnno = current->target_index; | |
2376 | scnhdr.s_flags = STYP_OVRFLO; | |
2377 | if (coff_swap_scnhdr_out (abfd, &scnhdr, &buff) == 0 | |
2378 | || bfd_write ((PTR) &buff, 1, SCNHSZ, abfd) != SCNHSZ) | |
2379 | return false; | |
2380 | } | |
2381 | } | |
2382 | #endif | |
0f268757 SC |
2383 | |
2384 | /* OK, now set up the filehdr... */ | |
e98e6ec1 SC |
2385 | |
2386 | /* Don't include the internal abs section in the section count */ | |
2387 | ||
0f268757 | 2388 | /* |
89665c85 SC |
2389 | We will NOT put a fucking timestamp in the header here. Every time you |
2390 | put it back, I will come in and take it out again. I'm sorry. This | |
2391 | field does not belong here. We fill it with a 0 so it compares the | |
2392 | same but is not a reasonable time. -- gnu@cygnus.com | |
2393 | */ | |
5944d75b | 2394 | internal_f.f_timdat = 0; |
0f268757 | 2395 | |
0f268757 SC |
2396 | internal_f.f_flags = 0; |
2397 | ||
2398 | if (abfd->flags & EXEC_P) | |
9783e04a | 2399 | internal_f.f_opthdr = AOUTSZ; |
0f268757 | 2400 | else |
dd984644 ILT |
2401 | { |
2402 | internal_f.f_opthdr = 0; | |
2403 | #ifdef RS6000COFF_C | |
867d923d ILT |
2404 | if (xcoff_data (abfd)->full_aouthdr) |
2405 | internal_f.f_opthdr = AOUTSZ; | |
2406 | else | |
2407 | internal_f.f_opthdr = SMALL_AOUTSZ; | |
dd984644 ILT |
2408 | #endif |
2409 | } | |
0f268757 SC |
2410 | |
2411 | if (!hasrelocs) | |
9783e04a | 2412 | internal_f.f_flags |= F_RELFLG; |
0f268757 | 2413 | if (!haslinno) |
9783e04a | 2414 | internal_f.f_flags |= F_LNNO; |
0f268757 | 2415 | if (abfd->flags & EXEC_P) |
9783e04a | 2416 | internal_f.f_flags |= F_EXEC; |
a0f3f080 | 2417 | |
d6f41a7d | 2418 | /* FIXME: this is wrong for PPC_PE! */ |
d812945a | 2419 | if (bfd_little_endian (abfd)) |
9783e04a DM |
2420 | internal_f.f_flags |= F_AR32WR; |
2421 | else | |
2422 | internal_f.f_flags |= F_AR32W; | |
a0f3f080 | 2423 | |
0f268757 | 2424 | /* |
89665c85 SC |
2425 | FIXME, should do something about the other byte orders and |
2426 | architectures. | |
2427 | */ | |
0f268757 | 2428 | |
5f710a3a ILT |
2429 | #ifdef RS6000COFF_C |
2430 | if ((abfd->flags & DYNAMIC) != 0) | |
2431 | internal_f.f_flags |= F_SHROBJ; | |
2432 | if (bfd_get_section_by_name (abfd, _LOADER) != NULL) | |
2433 | internal_f.f_flags |= F_DYNLOAD; | |
2434 | #endif | |
2435 | ||
ab31ae53 KR |
2436 | memset (&internal_a, 0, sizeof internal_a); |
2437 | ||
0f268757 SC |
2438 | /* Set up architecture-dependent stuff */ |
2439 | ||
9783e04a DM |
2440 | { |
2441 | unsigned int magic = 0; | |
2442 | unsigned short flags = 0; | |
2443 | coff_set_flags (abfd, &magic, &flags); | |
2444 | internal_f.f_magic = magic; | |
2445 | internal_f.f_flags |= flags; | |
2446 | /* ...and the "opt"hdr... */ | |
0f268757 | 2447 | |
cbdc7909 | 2448 | #ifdef A29K |
9783e04a DM |
2449 | #ifdef ULTRA3 /* NYU's machine */ |
2450 | /* FIXME: This is a bogus check. I really want to see if there | |
89665c85 SC |
2451 | * is a .shbss or a .shdata section, if so then set the magic |
2452 | * number to indicate a shared data executable. | |
2453 | */ | |
9783e04a | 2454 | if (internal_f.f_nscns >= 7) |
89665c85 | 2455 | internal_a.magic = SHMAGIC; /* Shared magic */ |
9783e04a DM |
2456 | else |
2457 | #endif /* ULTRA3 */ | |
89665c85 | 2458 | internal_a.magic = NMAGIC; /* Assume separate i/d */ |
41f50af0 | 2459 | #define __A_MAGIC_SET__ |
9783e04a | 2460 | #endif /* A29K */ |
cf587de8 ILT |
2461 | #ifdef I860 |
2462 | /* FIXME: What are the a.out magic numbers for the i860? */ | |
2463 | internal_a.magic = 0; | |
2464 | #define __A_MAGIC_SET__ | |
2465 | #endif /* I860 */ | |
0f268757 | 2466 | #ifdef I960 |
9783e04a | 2467 | internal_a.magic = (magic == I960ROMAGIC ? NMAGIC : OMAGIC); |
41f50af0 | 2468 | #define __A_MAGIC_SET__ |
9783e04a | 2469 | #endif /* I960 */ |
0f268757 | 2470 | #if M88 |
41f50af0 | 2471 | #define __A_MAGIC_SET__ |
9783e04a DM |
2472 | internal_a.magic = PAGEMAGICBCS; |
2473 | #endif /* M88 */ | |
41f50af0 | 2474 | |
97eb2f0c KR |
2475 | #if APOLLO_M68 |
2476 | #define __A_MAGIC_SET__ | |
9783e04a | 2477 | internal_a.magic = APOLLO_COFF_VERSION_NUMBER; |
97eb2f0c KR |
2478 | #endif |
2479 | ||
e8fbe6d9 | 2480 | #if defined(M68) || defined(WE32K) || defined(M68K) |
41f50af0 | 2481 | #define __A_MAGIC_SET__ |
e8fbe6d9 ILT |
2482 | #if defined(LYNXOS) |
2483 | internal_a.magic = LYNXCOFFMAGIC; | |
7f82c7e1 | 2484 | #else |
d19df9b5 ILT |
2485 | #if defined(TARG_AUX) |
2486 | internal_a.magic = (abfd->flags & D_PAGED ? PAGEMAGICPEXECPAGED : | |
2487 | abfd->flags & WP_TEXT ? PAGEMAGICPEXECSWAPPED : | |
2488 | PAGEMAGICEXECSWAPPED); | |
2489 | #else | |
7f82c7e1 ILT |
2490 | #if defined (PAGEMAGICPEXECPAGED) |
2491 | internal_a.magic = PAGEMAGICPEXECPAGED; | |
2492 | #endif | |
d19df9b5 | 2493 | #endif /* TARG_AUX */ |
fa0c23eb | 2494 | #endif /* LYNXOS */ |
89665c85 | 2495 | #endif /* M68 || WE32K || M68K */ |
8ad2a31d | 2496 | |
89665c85 SC |
2497 | #if defined(ARM) |
2498 | #define __A_MAGIC_SET__ | |
2499 | internal_a.magic = ZMAGIC; | |
2500 | #endif | |
80b2dd82 KK |
2501 | #if defined(PPC) |
2502 | #define __A_MAGIC_SET__ | |
d6f41a7d | 2503 | internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC; |
80b2dd82 | 2504 | #endif |
e8fbe6d9 | 2505 | #if defined(I386) |
9783e04a | 2506 | #define __A_MAGIC_SET__ |
e8fbe6d9 ILT |
2507 | #if defined(LYNXOS) |
2508 | internal_a.magic = LYNXCOFFMAGIC; | |
89665c85 | 2509 | #else /* LYNXOS */ |
9783e04a | 2510 | internal_a.magic = ZMAGIC; |
e8fbe6d9 | 2511 | #endif /* LYNXOS */ |
8ad2a31d | 2512 | #endif /* I386 */ |
41f50af0 | 2513 | |
e8fbe6d9 ILT |
2514 | #if defined(SPARC) |
2515 | #define __A_MAGIC_SET__ | |
2516 | #if defined(LYNXOS) | |
89665c85 SC |
2517 | internal_a.magic = LYNXCOFFMAGIC; |
2518 | #endif /* LYNXOS */ | |
2519 | #endif /* SPARC */ | |
e8fbe6d9 | 2520 | |
cbdc7909 JG |
2521 | #if RS6000COFF_C |
2522 | #define __A_MAGIC_SET__ | |
9783e04a | 2523 | internal_a.magic = (abfd->flags & D_PAGED) ? RS6K_AOUTHDR_ZMAGIC : |
89665c85 SC |
2524 | (abfd->flags & WP_TEXT) ? RS6K_AOUTHDR_NMAGIC : |
2525 | RS6K_AOUTHDR_OMAGIC; | |
cbdc7909 JG |
2526 | #endif |
2527 | ||
41f50af0 | 2528 | #ifndef __A_MAGIC_SET__ |
9783e04a | 2529 | #include "Your aouthdr magic number is not being set!" |
41f50af0 | 2530 | #else |
9783e04a | 2531 | #undef __A_MAGIC_SET__ |
0f268757 | 2532 | #endif |
9783e04a | 2533 | } |
e18c4e8f ILT |
2534 | |
2535 | /* FIXME: Does anybody ever set this to another value? */ | |
2536 | internal_a.vstamp = 0; | |
2537 | ||
0f268757 | 2538 | /* Now should write relocs, strings, syms */ |
9783e04a DM |
2539 | obj_sym_filepos (abfd) = sym_base; |
2540 | ||
2541 | if (bfd_get_symcount (abfd) != 0) | |
2542 | { | |
89665c85 | 2543 | int firstundef; |
9783e04a DM |
2544 | #ifndef RS6000COFF_C |
2545 | if (!coff_add_missing_symbols (abfd)) | |
2546 | return false; | |
2547 | #endif | |
89665c85 | 2548 | if (!coff_renumber_symbols (abfd, &firstundef)) |
9783e04a DM |
2549 | return false; |
2550 | coff_mangle_symbols (abfd); | |
bfe8224f ILT |
2551 | if (! coff_write_symbols (abfd)) |
2552 | return false; | |
791a3db4 ILT |
2553 | if (! coff_write_linenumbers (abfd)) |
2554 | return false; | |
89665c85 | 2555 | if (! coff_write_relocs (abfd, firstundef)) |
9783e04a | 2556 | return false; |
e98e6ec1 | 2557 | } |
a418e05d ILT |
2558 | #ifdef COFF_IMAGE_WITH_PE |
2559 | #ifdef PPC | |
2560 | else if ((abfd->flags & EXEC_P) != 0) | |
2561 | { | |
2562 | bfd_byte b; | |
2563 | ||
2564 | /* PowerPC PE appears to require that all executable files be | |
2565 | rounded up to the page size. */ | |
2566 | b = 0; | |
2567 | if (bfd_seek (abfd, | |
2568 | BFD_ALIGN (sym_base, COFF_PAGE_SIZE) - 1, | |
2569 | SEEK_SET) != 0 | |
2570 | || bfd_write (&b, 1, 1, abfd) != 1) | |
2571 | return false; | |
2572 | } | |
2573 | #endif | |
2574 | #endif | |
6ceff8e7 ILT |
2575 | |
2576 | /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF | |
2577 | backend linker, and obj_raw_syment_count is not valid until after | |
2578 | coff_write_symbols is called. */ | |
2579 | if (obj_raw_syment_count (abfd) != 0) | |
7860fe38 ILT |
2580 | { |
2581 | internal_f.f_symptr = sym_base; | |
2582 | #ifdef RS6000COFF_C | |
2583 | /* AIX appears to require that F_RELFLG not be set if there are | |
2584 | local symbols but no relocations. */ | |
2585 | internal_f.f_flags &=~ F_RELFLG; | |
2586 | #endif | |
2587 | } | |
6ceff8e7 ILT |
2588 | else |
2589 | { | |
2590 | internal_f.f_symptr = 0; | |
2591 | internal_f.f_flags |= F_LSYMS; | |
2592 | } | |
2593 | ||
9783e04a DM |
2594 | if (text_sec) |
2595 | { | |
2596 | internal_a.tsize = bfd_get_section_size_before_reloc (text_sec); | |
e9614321 | 2597 | internal_a.text_start = internal_a.tsize ? text_sec->vma : 0; |
e98e6ec1 | 2598 | } |
9783e04a DM |
2599 | if (data_sec) |
2600 | { | |
2601 | internal_a.dsize = bfd_get_section_size_before_reloc (data_sec); | |
e9614321 | 2602 | internal_a.data_start = internal_a.dsize ? data_sec->vma : 0; |
e98e6ec1 | 2603 | } |
9783e04a DM |
2604 | if (bss_sec) |
2605 | { | |
2606 | internal_a.bsize = bfd_get_section_size_before_reloc (bss_sec); | |
28a0c103 ILT |
2607 | if (internal_a.bsize && bss_sec->vma < internal_a.data_start) |
2608 | internal_a.data_start = bss_sec->vma; | |
e98e6ec1 | 2609 | } |
0f268757 | 2610 | |
e9614321 | 2611 | internal_a.entry = bfd_get_start_address (abfd); |
69645d10 | 2612 | internal_f.f_nsyms = obj_raw_syment_count (abfd); |
0f268757 | 2613 | |
5f710a3a | 2614 | #ifdef RS6000COFF_C |
867d923d | 2615 | if (xcoff_data (abfd)->full_aouthdr) |
5f710a3a | 2616 | { |
867d923d | 2617 | bfd_vma toc; |
5f710a3a ILT |
2618 | asection *loader_sec; |
2619 | ||
7906bf87 ILT |
2620 | internal_a.vstamp = 1; |
2621 | ||
d19df9b5 ILT |
2622 | internal_a.o_snentry = xcoff_data (abfd)->snentry; |
2623 | if (internal_a.o_snentry == 0) | |
2624 | internal_a.entry = (bfd_vma) -1; | |
867d923d | 2625 | |
5f710a3a ILT |
2626 | if (text_sec != NULL) |
2627 | { | |
2628 | internal_a.o_sntext = text_sec->target_index; | |
2629 | internal_a.o_algntext = bfd_get_section_alignment (abfd, text_sec); | |
2630 | } | |
2631 | else | |
2632 | { | |
2633 | internal_a.o_sntext = 0; | |
2634 | internal_a.o_algntext = 0; | |
2635 | } | |
2636 | if (data_sec != NULL) | |
2637 | { | |
2638 | internal_a.o_sndata = data_sec->target_index; | |
2639 | internal_a.o_algndata = bfd_get_section_alignment (abfd, data_sec); | |
2640 | } | |
2641 | else | |
2642 | { | |
2643 | internal_a.o_sndata = 0; | |
2644 | internal_a.o_algndata = 0; | |
2645 | } | |
2646 | loader_sec = bfd_get_section_by_name (abfd, ".loader"); | |
2647 | if (loader_sec != NULL) | |
2648 | internal_a.o_snloader = loader_sec->target_index; | |
2649 | else | |
2650 | internal_a.o_snloader = 0; | |
2651 | if (bss_sec != NULL) | |
2652 | internal_a.o_snbss = bss_sec->target_index; | |
2653 | else | |
2654 | internal_a.o_snbss = 0; | |
2655 | ||
2656 | toc = xcoff_data (abfd)->toc; | |
2657 | internal_a.o_toc = toc; | |
d19df9b5 | 2658 | internal_a.o_sntoc = xcoff_data (abfd)->sntoc; |
5f710a3a ILT |
2659 | |
2660 | internal_a.o_modtype = xcoff_data (abfd)->modtype; | |
dd984644 ILT |
2661 | if (xcoff_data (abfd)->cputype != -1) |
2662 | internal_a.o_cputype = xcoff_data (abfd)->cputype; | |
2663 | else | |
2664 | { | |
2665 | switch (bfd_get_arch (abfd)) | |
2666 | { | |
2667 | case bfd_arch_rs6000: | |
2668 | internal_a.o_cputype = 4; | |
2669 | break; | |
2670 | case bfd_arch_powerpc: | |
2671 | if (bfd_get_mach (abfd) == 0) | |
2672 | internal_a.o_cputype = 3; | |
2673 | else | |
2674 | internal_a.o_cputype = 1; | |
2675 | break; | |
2676 | default: | |
2677 | abort (); | |
2678 | } | |
2679 | } | |
5f710a3a ILT |
2680 | internal_a.o_maxstack = xcoff_data (abfd)->maxstack; |
2681 | internal_a.o_maxdata = xcoff_data (abfd)->maxdata; | |
2682 | } | |
2683 | #endif | |
2684 | ||
0f268757 | 2685 | /* now write them */ |
9783e04a DM |
2686 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) |
2687 | return false; | |
2688 | { | |
2689 | FILHDR buff; | |
2690 | coff_swap_filehdr_out (abfd, (PTR) & internal_f, (PTR) & buff); | |
791a3db4 ILT |
2691 | if (bfd_write ((PTR) & buff, 1, FILHSZ, abfd) != FILHSZ) |
2692 | return false; | |
9783e04a DM |
2693 | } |
2694 | if (abfd->flags & EXEC_P) | |
2695 | { | |
e98e6ec1 | 2696 | AOUTHDR buff; |
9783e04a | 2697 | coff_swap_aouthdr_out (abfd, (PTR) & internal_a, (PTR) & buff); |
791a3db4 ILT |
2698 | if (bfd_write ((PTR) & buff, 1, AOUTSZ, abfd) != AOUTSZ) |
2699 | return false; | |
e98e6ec1 | 2700 | } |
dd984644 ILT |
2701 | #ifdef RS6000COFF_C |
2702 | else | |
2703 | { | |
2704 | AOUTHDR buff; | |
867d923d ILT |
2705 | size_t size; |
2706 | ||
dd984644 ILT |
2707 | /* XCOFF seems to always write at least a small a.out header. */ |
2708 | coff_swap_aouthdr_out (abfd, (PTR) &internal_a, (PTR) &buff); | |
867d923d ILT |
2709 | if (xcoff_data (abfd)->full_aouthdr) |
2710 | size = AOUTSZ; | |
2711 | else | |
2712 | size = SMALL_AOUTSZ; | |
2713 | if (bfd_write ((PTR) &buff, 1, size, abfd) != size) | |
dd984644 ILT |
2714 | return false; |
2715 | } | |
2716 | #endif | |
89665c85 | 2717 | |
0f268757 | 2718 | return true; |
6f715d66 SC |
2719 | } |
2720 | ||
9783e04a | 2721 | static boolean |
57a1867e DM |
2722 | coff_set_section_contents (abfd, section, location, offset, count) |
2723 | bfd * abfd; | |
2724 | sec_ptr section; | |
2725 | PTR location; | |
2726 | file_ptr offset; | |
2727 | bfd_size_type count; | |
0f268757 | 2728 | { |
9783e04a DM |
2729 | if (abfd->output_has_begun == false) /* set by bfd.c handler */ |
2730 | coff_compute_section_file_positions (abfd); | |
cbdc7909 | 2731 | |
075caafd | 2732 | #ifdef _LIB |
5eb83ede ILT |
2733 | |
2734 | /* The physical address field of a .lib section is used to hold the | |
2735 | number of shared libraries in the section. This code counts the | |
2736 | number of sections being written, and increments the lma field | |
2737 | with the number. | |
2738 | ||
2739 | I have found no documentation on the contents of this section. | |
2740 | Experimentation indicates that the section contains zero or more | |
2741 | records, each of which has the following structure: | |
2742 | ||
2743 | - a (four byte) word holding the length of this record, in words, | |
2744 | - a word that always seems to be set to "2", | |
2745 | - the path to a shared library, null-terminated and then padded | |
2746 | to a whole word boundary. | |
2747 | ||
2748 | bfd_assert calls have been added to alert if an attempt is made | |
2749 | to write a section which doesn't follow these assumptions. The | |
2750 | code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe | |
2751 | <robertl@arnet.com> (Thanks!). | |
2752 | ||
2753 | Gvran Uddeborg <gvran@uddeborg.pp.se> */ | |
2754 | ||
2755 | if (strcmp (section->name, _LIB) == 0) | |
2756 | { | |
2757 | bfd_byte *rec, *recend; | |
2758 | ||
2759 | rec = (bfd_byte *) location; | |
2760 | recend = rec + count; | |
2761 | while (rec < recend) | |
2762 | { | |
5eb83ede | 2763 | ++section->lma; |
5a4d8c40 | 2764 | rec += bfd_get_32 (abfd, rec) * 4; |
5eb83ede ILT |
2765 | } |
2766 | ||
2767 | BFD_ASSERT (rec == recend); | |
2768 | } | |
2769 | ||
075caafd | 2770 | #endif |
0f268757 | 2771 | |
9783e04a DM |
2772 | /* Don't write out bss sections - one way to do this is to |
2773 | see if the filepos has not been set. */ | |
2774 | if (section->filepos == 0) | |
2775 | return true; | |
55c95b04 | 2776 | |
791a3db4 ILT |
2777 | if (bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET) != 0) |
2778 | return false; | |
7a8b18b6 | 2779 | |
9783e04a DM |
2780 | if (count != 0) |
2781 | { | |
2782 | return (bfd_write (location, 1, count, abfd) == count) ? true : false; | |
075caafd | 2783 | } |
9783e04a | 2784 | return true; |
075caafd ILT |
2785 | } |
2786 | #if 0 | |
9783e04a DM |
2787 | static boolean |
2788 | coff_close_and_cleanup (abfd) | |
2789 | bfd *abfd; | |
0f268757 | 2790 | { |
9783e04a DM |
2791 | if (!bfd_read_p (abfd)) |
2792 | switch (abfd->format) | |
2793 | { | |
2794 | case bfd_archive: | |
2795 | if (!_bfd_write_archive_contents (abfd)) | |
2796 | return false; | |
2797 | break; | |
2798 | case bfd_object: | |
2799 | if (!coff_write_object_contents (abfd)) | |
2800 | return false; | |
2801 | break; | |
2802 | default: | |
57a1867e | 2803 | bfd_set_error (bfd_error_invalid_operation); |
075caafd | 2804 | return false; |
9783e04a | 2805 | } |
075caafd ILT |
2806 | |
2807 | /* We depend on bfd_close to free all the memory on the obstack. */ | |
2808 | /* FIXME if bfd_release is not using obstacks! */ | |
2809 | return true; | |
0f268757 SC |
2810 | } |
2811 | ||
075caafd ILT |
2812 | #endif |
2813 | ||
2814 | static PTR | |
9783e04a DM |
2815 | buy_and_read (abfd, where, seek_direction, size) |
2816 | bfd *abfd; | |
2817 | file_ptr where; | |
2818 | int seek_direction; | |
2819 | size_t size; | |
075caafd | 2820 | { |
9783e04a DM |
2821 | PTR area = (PTR) bfd_alloc (abfd, size); |
2822 | if (!area) | |
a9713b91 | 2823 | return (NULL); |
791a3db4 ILT |
2824 | if (bfd_seek (abfd, where, seek_direction) != 0 |
2825 | || bfd_read (area, 1, size, abfd) != size) | |
2826 | return (NULL); | |
9783e04a | 2827 | return (area); |
075caafd | 2828 | } /* buy_and_read() */ |
0f268757 | 2829 | |
9fda1a39 | 2830 | /* |
9783e04a | 2831 | SUBSUBSECTION |
c188b0be | 2832 | Reading linenumbers |
9fda1a39 | 2833 | |
9fda1a39 SC |
2834 | Creating the linenumber table is done by reading in the entire |
2835 | coff linenumber table, and creating another table for internal use. | |
6f715d66 | 2836 | |
c188b0be | 2837 | A coff linenumber table is structured so that each function |
9fda1a39 SC |
2838 | is marked as having a line number of 0. Each line within the |
2839 | function is an offset from the first line in the function. The | |
2840 | base of the line number information for the table is stored in | |
9783e04a | 2841 | the symbol associated with the function. |
6f715d66 | 2842 | |
9fda1a39 SC |
2843 | The information is copied from the external to the internal |
2844 | table, and each symbol which marks a function is marked by | |
2845 | pointing its... | |
6f715d66 | 2846 | |
9fda1a39 | 2847 | How does this work ? |
6f715d66 SC |
2848 | |
2849 | */ | |
0f268757 SC |
2850 | |
2851 | static boolean | |
9783e04a | 2852 | coff_slurp_line_table (abfd, asect) |
ab31ae53 KR |
2853 | bfd *abfd; |
2854 | asection *asect; | |
2855 | { | |
9783e04a | 2856 | LINENO *native_lineno; |
ab31ae53 KR |
2857 | alent *lineno_cache; |
2858 | ||
9783e04a | 2859 | BFD_ASSERT (asect->lineno == (alent *) NULL); |
ab31ae53 | 2860 | |
9783e04a DM |
2861 | native_lineno = (LINENO *) buy_and_read (abfd, |
2862 | asect->line_filepos, | |
2863 | SEEK_SET, | |
2864 | (size_t) (LINESZ * | |
2865 | asect->lineno_count)); | |
ab31ae53 | 2866 | lineno_cache = |
9783e04a | 2867 | (alent *) bfd_alloc (abfd, (size_t) ((asect->lineno_count + 1) * sizeof (alent))); |
ab31ae53 | 2868 | if (lineno_cache == NULL) |
a9713b91 | 2869 | return false; |
ab31ae53 KR |
2870 | else |
2871 | { | |
9783e04a DM |
2872 | unsigned int counter = 0; |
2873 | alent *cache_ptr = lineno_cache; | |
2874 | LINENO *src = native_lineno; | |
cbdc7909 | 2875 | |
ab31ae53 KR |
2876 | while (counter < asect->lineno_count) |
2877 | { | |
2878 | struct internal_lineno dst; | |
9783e04a | 2879 | coff_swap_lineno_in (abfd, src, &dst); |
ab31ae53 KR |
2880 | cache_ptr->line_number = dst.l_lnno; |
2881 | ||
2882 | if (cache_ptr->line_number == 0) | |
2883 | { | |
2884 | coff_symbol_type *sym = | |
9783e04a DM |
2885 | (coff_symbol_type *) (dst.l_addr.l_symndx |
2886 | + obj_raw_syments (abfd))->u.syment._n._n_n._n_zeroes; | |
ab31ae53 | 2887 | cache_ptr->u.sym = (asymbol *) sym; |
49488f2b ILT |
2888 | if (sym->lineno != NULL) |
2889 | { | |
2890 | (*_bfd_error_handler) | |
2891 | ("%s: warning: duplicate line number information for `%s'", | |
2892 | bfd_get_filename (abfd), | |
2893 | bfd_asymbol_name (&sym->symbol)); | |
2894 | } | |
ab31ae53 KR |
2895 | sym->lineno = cache_ptr; |
2896 | } | |
2897 | else | |
2898 | { | |
2899 | cache_ptr->u.offset = dst.l_addr.l_paddr | |
9783e04a DM |
2900 | - bfd_section_vma (abfd, asect); |
2901 | } /* If no linenumber expect a symbol index */ | |
ab31ae53 KR |
2902 | |
2903 | cache_ptr++; | |
2904 | src++; | |
2905 | counter++; | |
0f268757 | 2906 | } |
0f268757 | 2907 | cache_ptr->line_number = 0; |
cbdc7909 | 2908 | |
0f268757 | 2909 | } |
ab31ae53 KR |
2910 | asect->lineno = lineno_cache; |
2911 | /* FIXME, free native_lineno here, or use alloca or something. */ | |
2912 | return true; | |
2913 | } | |
0f268757 | 2914 | |
ab31ae53 | 2915 | static boolean |
57a1867e DM |
2916 | coff_slurp_symbol_table (abfd) |
2917 | bfd * abfd; | |
6f715d66 | 2918 | { |
9783e04a | 2919 | combined_entry_type *native_symbols; |
6f715d66 | 2920 | coff_symbol_type *cached_area; |
9783e04a | 2921 | unsigned int *table_ptr; |
cbdc7909 | 2922 | |
9783e04a | 2923 | unsigned int number_of_symbols = 0; |
89665c85 | 2924 | |
9783e04a | 2925 | if (obj_symbols (abfd)) |
6f715d66 | 2926 | return true; |
cbdc7909 | 2927 | |
6f715d66 | 2928 | /* Read in the symbol table */ |
9783e04a DM |
2929 | if ((native_symbols = coff_get_normalized_symtab (abfd)) == NULL) |
2930 | { | |
2931 | return (false); | |
2932 | } /* on error */ | |
cbdc7909 | 2933 | |
6f715d66 | 2934 | /* Allocate enough room for all the symbols in cached form */ |
69645d10 ILT |
2935 | cached_area = ((coff_symbol_type *) |
2936 | bfd_alloc (abfd, | |
2937 | (obj_raw_syment_count (abfd) | |
2938 | * sizeof (coff_symbol_type)))); | |
cbdc7909 | 2939 | |
9783e04a | 2940 | if (cached_area == NULL) |
a9713b91 | 2941 | return false; |
69645d10 ILT |
2942 | table_ptr = ((unsigned int *) |
2943 | bfd_alloc (abfd, | |
2944 | (obj_raw_syment_count (abfd) | |
2945 | * sizeof (unsigned int)))); | |
cbdc7909 | 2946 | |
9783e04a | 2947 | if (table_ptr == NULL) |
a9713b91 | 2948 | return false; |
9783e04a DM |
2949 | else |
2950 | { | |
2951 | coff_symbol_type *dst = cached_area; | |
69645d10 | 2952 | unsigned int last_native_index = obj_raw_syment_count (abfd); |
9783e04a DM |
2953 | unsigned int this_index = 0; |
2954 | while (this_index < last_native_index) | |
2955 | { | |
2956 | combined_entry_type *src = native_symbols + this_index; | |
2957 | table_ptr[this_index] = number_of_symbols; | |
2958 | dst->symbol.the_bfd = abfd; | |
2959 | ||
2960 | dst->symbol.name = (char *) (src->u.syment._n._n_n._n_offset); | |
2961 | /* We use the native name field to point to the cached field. */ | |
2962 | src->u.syment._n._n_n._n_zeroes = (long) dst; | |
2963 | dst->symbol.section = coff_section_from_bfd_index (abfd, | |
2964 | src->u.syment.n_scnum); | |
2965 | dst->symbol.flags = 0; | |
2966 | dst->done_lineno = false; | |
2967 | ||
2968 | switch (src->u.syment.n_sclass) | |
2969 | { | |
0f268757 | 2970 | #ifdef I960 |
9783e04a | 2971 | case C_LEAFEXT: |
0f268757 | 2972 | #if 0 |
9783e04a DM |
2973 | dst->symbol.value = src->u.syment.n_value - dst->symbol.section->vma; |
2974 | dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL; | |
c7e76b5e | 2975 | dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION; |
0f268757 | 2976 | #endif |
9783e04a | 2977 | /* Fall through to next case */ |
cbdc7909 | 2978 | |
0f268757 | 2979 | #endif |
cbdc7909 | 2980 | |
9783e04a | 2981 | case C_EXT: |
cbdc7909 | 2982 | #ifdef RS6000COFF_C |
9783e04a | 2983 | case C_HIDEXT: |
89665c85 SC |
2984 | #endif |
2985 | #ifdef COFF_WITH_PE | |
2986 | /* PE uses storage class 0x68 to denote a section symbol */ | |
2987 | case C_SECTION: | |
a418e05d ILT |
2988 | /* PE uses storage class 0x67 for a weak external symbol. */ |
2989 | case C_NT_WEAK: | |
9783e04a DM |
2990 | #endif |
2991 | if ((src->u.syment.n_scnum) == 0) | |
2992 | { | |
2993 | if ((src->u.syment.n_value) == 0) | |
2994 | { | |
b5b056fc | 2995 | dst->symbol.section = bfd_und_section_ptr; |
9783e04a DM |
2996 | dst->symbol.value = 0; |
2997 | } | |
2998 | else | |
2999 | { | |
b5b056fc | 3000 | dst->symbol.section = bfd_com_section_ptr; |
9783e04a DM |
3001 | dst->symbol.value = (src->u.syment.n_value); |
3002 | } | |
3003 | } | |
3004 | else | |
3005 | { | |
e7cac9de ILT |
3006 | /* Base the value as an index from the base of the |
3007 | section */ | |
e98e6ec1 | 3008 | |
9783e04a | 3009 | dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL; |
e7cac9de ILT |
3010 | dst->symbol.value = (src->u.syment.n_value |
3011 | - dst->symbol.section->vma); | |
e98e6ec1 | 3012 | |
9783e04a DM |
3013 | if (ISFCN ((src->u.syment.n_type))) |
3014 | { | |
e7cac9de ILT |
3015 | /* A function ext does not go at the end of a |
3016 | file. */ | |
c7e76b5e | 3017 | dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION; |
9783e04a DM |
3018 | } |
3019 | } | |
85e0c721 | 3020 | |
9783e04a | 3021 | #ifdef RS6000COFF_C |
e7cac9de ILT |
3022 | /* A C_HIDEXT symbol is not global. */ |
3023 | if (src->u.syment.n_sclass == C_HIDEXT) | |
3024 | dst->symbol.flags = BSF_LOCAL; | |
5f710a3a | 3025 | /* A symbol with a csect entry should not go at the end. */ |
3f2c5b2d | 3026 | if (src->u.syment.n_numaux > 0) |
5f710a3a | 3027 | dst->symbol.flags |= BSF_NOT_AT_END; |
9783e04a DM |
3028 | #endif |
3029 | ||
a418e05d ILT |
3030 | #ifdef COFF_WITH_PE |
3031 | if (src->u.syment.n_sclass == C_NT_WEAK) | |
3032 | dst->symbol.flags = BSF_WEAK; | |
3033 | #endif | |
3034 | ||
9783e04a DM |
3035 | break; |
3036 | ||
3037 | case C_STAT: /* static */ | |
0f268757 | 3038 | #ifdef I960 |
9783e04a DM |
3039 | case C_LEAFSTAT: /* static leaf procedure */ |
3040 | #endif | |
3041 | case C_LABEL: /* label */ | |
3042 | if (src->u.syment.n_scnum == -2) | |
3043 | dst->symbol.flags = BSF_DEBUGGING; | |
3044 | else | |
3045 | dst->symbol.flags = BSF_LOCAL; | |
3046 | /* | |
0d740984 SC |
3047 | Base the value as an index from the base of the section, if |
3048 | there is one | |
6f715d66 | 3049 | */ |
9783e04a DM |
3050 | if (dst->symbol.section) |
3051 | dst->symbol.value = (src->u.syment.n_value) - | |
3052 | dst->symbol.section->vma; | |
3053 | else | |
3054 | dst->symbol.value = (src->u.syment.n_value); | |
3055 | break; | |
3056 | ||
3057 | case C_MOS: /* member of structure */ | |
3058 | case C_EOS: /* end of structure */ | |
3059 | #ifdef NOTDEF /* C_AUTOARG has the same value */ | |
41f50af0 | 3060 | #ifdef C_GLBLREG |
9783e04a | 3061 | case C_GLBLREG: /* A29k-specific storage class */ |
41f50af0 SC |
3062 | #endif |
3063 | #endif | |
9783e04a DM |
3064 | case C_REGPARM: /* register parameter */ |
3065 | case C_REG: /* register variable */ | |
0f268757 | 3066 | #ifdef C_AUTOARG |
9783e04a DM |
3067 | case C_AUTOARG: /* 960-specific storage class */ |
3068 | #endif | |
3069 | case C_TPDEF: /* type definition */ | |
3070 | case C_ARG: | |
3071 | case C_AUTO: /* automatic variable */ | |
3072 | case C_FIELD: /* bit field */ | |
3073 | case C_ENTAG: /* enumeration tag */ | |
3074 | case C_MOE: /* member of enumeration */ | |
3075 | case C_MOU: /* member of union */ | |
3076 | case C_UNTAG: /* union tag */ | |
3077 | dst->symbol.flags = BSF_DEBUGGING; | |
3078 | dst->symbol.value = (src->u.syment.n_value); | |
3079 | break; | |
3080 | ||
3081 | case C_FILE: /* file name */ | |
3082 | case C_STRTAG: /* structure tag */ | |
cbdc7909 | 3083 | #ifdef RS6000COFF_C |
9783e04a DM |
3084 | case C_GSYM: |
3085 | case C_LSYM: | |
3086 | case C_PSYM: | |
3087 | case C_RSYM: | |
3088 | case C_RPSYM: | |
3089 | case C_STSYM: | |
2bd0aeb9 ILT |
3090 | case C_BCOMM: |
3091 | case C_ECOMM: | |
9783e04a DM |
3092 | case C_DECL: |
3093 | case C_ENTRY: | |
3094 | case C_FUN: | |
3095 | case C_ESTAT: | |
3096 | #endif | |
3097 | dst->symbol.flags = BSF_DEBUGGING; | |
3098 | dst->symbol.value = (src->u.syment.n_value); | |
3099 | break; | |
cbdc7909 | 3100 | |
9783e04a | 3101 | #ifdef RS6000COFF_C |
49488f2b ILT |
3102 | case C_BINCL: /* beginning of include file */ |
3103 | case C_EINCL: /* ending of include file */ | |
3104 | /* The value is actually a pointer into the line numbers | |
3105 | of the file. We locate the line number entry, and | |
3106 | set the section to the section which contains it, and | |
3107 | the value to the index in that section. */ | |
3108 | { | |
3109 | asection *sec; | |
3110 | ||
3111 | dst->symbol.flags = BSF_DEBUGGING; | |
3112 | for (sec = abfd->sections; sec != NULL; sec = sec->next) | |
dd984644 ILT |
3113 | if (sec->line_filepos <= (file_ptr) src->u.syment.n_value |
3114 | && ((file_ptr) (sec->line_filepos | |
3115 | + sec->lineno_count * LINESZ) | |
3116 | > (file_ptr) src->u.syment.n_value)) | |
49488f2b ILT |
3117 | break; |
3118 | if (sec == NULL) | |
3119 | dst->symbol.value = 0; | |
3120 | else | |
3121 | { | |
3122 | dst->symbol.section = sec; | |
3123 | dst->symbol.value = ((src->u.syment.n_value | |
3124 | - sec->line_filepos) | |
3125 | / LINESZ); | |
3126 | src->fix_line = 1; | |
3127 | } | |
3128 | } | |
3129 | break; | |
3130 | ||
9783e04a DM |
3131 | case C_BSTAT: |
3132 | dst->symbol.flags = BSF_DEBUGGING; | |
9783e04a | 3133 | |
3f2c5b2d ILT |
3134 | /* The value is actually a symbol index. Save a pointer |
3135 | to the symbol instead of the index. FIXME: This | |
3136 | should use a union. */ | |
9783e04a DM |
3137 | src->u.syment.n_value = |
3138 | (long) (native_symbols + src->u.syment.n_value); | |
49488f2b | 3139 | dst->symbol.value = src->u.syment.n_value; |
9783e04a DM |
3140 | src->fix_value = 1; |
3141 | break; | |
3142 | #endif | |
3143 | ||
3144 | case C_BLOCK: /* ".bb" or ".eb" */ | |
3145 | case C_FCN: /* ".bf" or ".ef" */ | |
3146 | case C_EFCN: /* physical end of function */ | |
3147 | dst->symbol.flags = BSF_LOCAL; | |
3148 | /* | |
6f715d66 SC |
3149 | Base the value as an index from the base of the section |
3150 | */ | |
9783e04a DM |
3151 | dst->symbol.value = (src->u.syment.n_value) - dst->symbol.section->vma; |
3152 | break; | |
3153 | ||
3154 | case C_NULL: | |
3155 | case C_EXTDEF: /* external definition */ | |
3156 | case C_ULABEL: /* undefined label */ | |
3157 | case C_USTATIC: /* undefined static */ | |
89665c85 SC |
3158 | #ifndef COFF_WITH_PE |
3159 | /* C_LINE in regular coff is 0x68. NT has taken over this storage | |
3160 | class to represent a section symbol */ | |
9783e04a | 3161 | case C_LINE: /* line # reformatted as symbol table entry */ |
a418e05d | 3162 | /* NT uses 0x67 for a weak symbol, not C_ALIAS. */ |
9783e04a | 3163 | case C_ALIAS: /* duplicate tag */ |
a418e05d | 3164 | #endif |
9783e04a DM |
3165 | case C_HIDDEN: /* ext symbol in dmert public lib */ |
3166 | default: | |
7a7fbffb ILT |
3167 | (*_bfd_error_handler) |
3168 | ("%s: Unrecognized storage class %d for %s symbol `%s'", | |
3169 | bfd_get_filename (abfd), src->u.syment.n_sclass, | |
3170 | dst->symbol.section->name, dst->symbol.name); | |
9783e04a DM |
3171 | dst->symbol.flags = BSF_DEBUGGING; |
3172 | dst->symbol.value = (src->u.syment.n_value); | |
3173 | break; | |
3174 | } | |
cbdc7909 | 3175 | |
6590a8c9 | 3176 | /* BFD_ASSERT(dst->symbol.flags != 0);*/ |
cbdc7909 | 3177 | |
9783e04a | 3178 | dst->native = src; |
cbdc7909 | 3179 | |
f135c692 | 3180 | dst->symbol.udata.i = 0; |
9783e04a DM |
3181 | dst->lineno = (alent *) NULL; |
3182 | this_index += (src->u.syment.n_numaux) + 1; | |
3183 | dst++; | |
3184 | number_of_symbols++; | |
3185 | } /* walk the native symtab */ | |
3186 | } /* bfdize the native symtab */ | |
cbdc7909 | 3187 | |
9783e04a DM |
3188 | obj_symbols (abfd) = cached_area; |
3189 | obj_raw_syments (abfd) = native_symbols; | |
cbdc7909 | 3190 | |
9783e04a DM |
3191 | bfd_get_symcount (abfd) = number_of_symbols; |
3192 | obj_convert (abfd) = table_ptr; | |
6f715d66 | 3193 | /* Slurp the line tables for each section too */ |
9783e04a DM |
3194 | { |
3195 | asection *p; | |
3196 | p = abfd->sections; | |
3197 | while (p) | |
3198 | { | |
3199 | coff_slurp_line_table (abfd, p); | |
6f715d66 | 3200 | p = p->next; |
0f268757 | 3201 | } |
9783e04a | 3202 | } |
6f715d66 SC |
3203 | return true; |
3204 | } /* coff_slurp_symbol_table() */ | |
0f268757 | 3205 | |
69645d10 ILT |
3206 | /* Check whether a symbol is globally visible. This is used by the |
3207 | COFF backend linker code in cofflink.c, since a couple of targets | |
3208 | have globally visible symbols which are not class C_EXT. This | |
3209 | function need not handle the case of n_class == C_EXT. */ | |
3210 | ||
3211 | #undef OTHER_GLOBAL_CLASS | |
3212 | ||
3213 | #ifdef I960 | |
3214 | #define OTHER_GLOBAL_CLASS C_LEAFEXT | |
3215 | #endif | |
3216 | ||
89665c85 SC |
3217 | #ifdef COFF_WITH_PE |
3218 | #define OTHER_GLOBAL_CLASS C_SECTION | |
3219 | #endif | |
3220 | ||
69645d10 ILT |
3221 | #ifdef OTHER_GLOBAL_CLASS |
3222 | ||
3223 | static boolean | |
3224 | coff_sym_is_global (abfd, syment) | |
3225 | bfd *abfd; | |
3226 | struct internal_syment *syment; | |
3227 | { | |
3228 | if (syment->n_sclass == OTHER_GLOBAL_CLASS) | |
3229 | return true; | |
3230 | return false; | |
3231 | } | |
3232 | ||
3233 | #undef OTHER_GLOBAL_CLASS | |
3234 | ||
3235 | #else /* ! defined (OTHER_GLOBAL_CLASS) */ | |
3236 | ||
3237 | /* sym_is_global should not be defined if it has nothing to do. */ | |
3238 | ||
3239 | #define coff_sym_is_global 0 | |
3240 | ||
3241 | #endif /* ! defined (OTHER_GLOBAL_CLASS) */ | |
3242 | ||
9fda1a39 | 3243 | /* |
9783e04a | 3244 | SUBSUBSECTION |
c188b0be | 3245 | Reading relocations |
9fda1a39 | 3246 | |
9fda1a39 SC |
3247 | Coff relocations are easily transformed into the internal BFD form |
3248 | (@code{arelent}). | |
3249 | ||
3250 | Reading a coff relocation table is done in the following stages: | |
3251 | ||
c188b0be | 3252 | o Read the entire coff relocation table into memory. |
9fda1a39 | 3253 | |
c188b0be | 3254 | o Process each relocation in turn; first swap it from the |
9fda1a39 SC |
3255 | external to the internal form. |
3256 | ||
c188b0be DM |
3257 | o Turn the symbol referenced in the relocation's symbol index |
3258 | into a pointer into the canonical symbol table. | |
3259 | This table is the same as the one returned by a call to | |
3260 | @code{bfd_canonicalize_symtab}. The back end will call that | |
9fda1a39 SC |
3261 | routine and save the result if a canonicalization hasn't been done. |
3262 | ||
3263 | o The reloc index is turned into a pointer to a howto | |
3264 | structure, in a back end specific way. For instance, the 386 | |
3265 | and 960 use the @code{r_type} to directly produce an index | |
3266 | into a howto table vector; the 88k subtracts a number from the | |
3267 | @code{r_type} field and creates an addend field. | |
3268 | ||
3269 | ||
6f715d66 SC |
3270 | */ |
3271 | ||
3b4f1a5d | 3272 | #ifndef CALC_ADDEND |
492d52cc ILT |
3273 | #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \ |
3274 | { \ | |
3275 | coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \ | |
3276 | if (ptr && bfd_asymbol_bfd (ptr) != abfd) \ | |
3277 | coffsym = (obj_symbols (abfd) \ | |
3278 | + (cache_ptr->sym_ptr_ptr - symbols)); \ | |
3279 | else if (ptr) \ | |
3280 | coffsym = coff_symbol_from (abfd, ptr); \ | |
3281 | if (coffsym != (coff_symbol_type *) NULL \ | |
3282 | && coffsym->native->u.syment.n_scnum == 0) \ | |
3283 | cache_ptr->addend = 0; \ | |
3284 | else if (ptr && bfd_asymbol_bfd (ptr) == abfd \ | |
3285 | && ptr->section != (asection *) NULL) \ | |
3286 | cache_ptr->addend = - (ptr->section->vma + ptr->value); \ | |
3287 | else \ | |
3288 | cache_ptr->addend = 0; \ | |
3289 | } | |
3b4f1a5d SC |
3290 | #endif |
3291 | ||
9783e04a | 3292 | static boolean |
57a1867e DM |
3293 | coff_slurp_reloc_table (abfd, asect, symbols) |
3294 | bfd * abfd; | |
3295 | sec_ptr asect; | |
3296 | asymbol ** symbols; | |
85e0c721 | 3297 | { |
9783e04a DM |
3298 | RELOC *native_relocs; |
3299 | arelent *reloc_cache; | |
3300 | arelent *cache_ptr; | |
3b4f1a5d SC |
3301 | |
3302 | unsigned int idx; | |
9783e04a | 3303 | |
3b4f1a5d | 3304 | if (asect->relocation) |
9783e04a | 3305 | return true; |
3b4f1a5d | 3306 | if (asect->reloc_count == 0) |
9783e04a | 3307 | return true; |
3b4f1a5d | 3308 | if (asect->flags & SEC_CONSTRUCTOR) |
9783e04a DM |
3309 | return true; |
3310 | if (!coff_slurp_symbol_table (abfd)) | |
3311 | return false; | |
3b4f1a5d | 3312 | native_relocs = |
9783e04a DM |
3313 | (RELOC *) buy_and_read (abfd, |
3314 | asect->rel_filepos, | |
3315 | SEEK_SET, | |
3316 | (size_t) (RELSZ * | |
3317 | asect->reloc_count)); | |
3b4f1a5d | 3318 | reloc_cache = (arelent *) |
9783e04a | 3319 | bfd_alloc (abfd, (size_t) (asect->reloc_count * sizeof (arelent))); |
3b4f1a5d | 3320 | |
9783e04a | 3321 | if (reloc_cache == NULL) |
a9713b91 | 3322 | return false; |
3b4f1a5d | 3323 | |
9783e04a DM |
3324 | |
3325 | for (idx = 0; idx < asect->reloc_count; idx++) | |
3326 | { | |
616ebcfd | 3327 | #ifdef RELOC_PROCESSING |
3b4f1a5d | 3328 | struct internal_reloc dst; |
9783e04a | 3329 | struct external_reloc *src; |
3b4f1a5d SC |
3330 | |
3331 | cache_ptr = reloc_cache + idx; | |
3332 | src = native_relocs + idx; | |
69645d10 | 3333 | coff_swap_reloc_in (abfd, src, &dst); |
3b4f1a5d | 3334 | |
9783e04a | 3335 | RELOC_PROCESSING (cache_ptr, &dst, symbols, abfd, asect); |
9898b929 | 3336 | #else |
616ebcfd | 3337 | struct internal_reloc dst; |
9783e04a DM |
3338 | asymbol *ptr; |
3339 | struct external_reloc *src; | |
616ebcfd SC |
3340 | |
3341 | cache_ptr = reloc_cache + idx; | |
3342 | src = native_relocs + idx; | |
3343 | ||
69645d10 | 3344 | coff_swap_reloc_in (abfd, src, &dst); |
616ebcfd | 3345 | |
9898b929 JG |
3346 | |
3347 | cache_ptr->address = dst.r_vaddr; | |
3348 | ||
9783e04a | 3349 | if (dst.r_symndx != -1) |
8070f29d KR |
3350 | { |
3351 | /* @@ Should never be greater than count of symbols! */ | |
3352 | if (dst.r_symndx >= obj_conv_table_size (abfd)) | |
3353 | abort (); | |
9783e04a | 3354 | cache_ptr->sym_ptr_ptr = symbols + obj_convert (abfd)[dst.r_symndx]; |
9898b929 | 3355 | ptr = *(cache_ptr->sym_ptr_ptr); |
8070f29d | 3356 | } |
9783e04a | 3357 | else |
8070f29d | 3358 | { |
b5b056fc | 3359 | cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; |
8070f29d KR |
3360 | ptr = 0; |
3361 | } | |
85e0c721 | 3362 | |
cd83759c KR |
3363 | /* The symbols definitions that we have read in have been |
3364 | relocated as if their sections started at 0. But the offsets | |
3365 | refering to the symbols in the raw data have not been | |
3366 | modified, so we have to have a negative addend to compensate. | |
3367 | ||
3368 | Note that symbols which used to be common must be left alone */ | |
cbdc7909 | 3369 | |
3b4f1a5d | 3370 | /* Calculate any reloc addend by looking at the symbol */ |
9783e04a | 3371 | CALC_ADDEND (abfd, ptr, dst, cache_ptr); |
cbdc7909 | 3372 | |
3b4f1a5d | 3373 | cache_ptr->address -= asect->vma; |
e98e6ec1 | 3374 | /* !! cache_ptr->section = (asection *) NULL;*/ |
20fdc627 | 3375 | |
3b4f1a5d | 3376 | /* Fill in the cache_ptr->howto field from dst.r_type */ |
9783e04a | 3377 | RTYPE2HOWTO (cache_ptr, &dst); |
9898b929 JG |
3378 | #endif |
3379 | ||
9783e04a | 3380 | } |
cbdc7909 | 3381 | |
3b4f1a5d SC |
3382 | asect->relocation = reloc_cache; |
3383 | return true; | |
85e0c721 | 3384 | } |
0f268757 | 3385 | |
f135c692 ILT |
3386 | #ifndef coff_rtype_to_howto |
3387 | #ifdef RTYPE2HOWTO | |
3388 | ||
3389 | /* Get the howto structure for a reloc. This is only used if the file | |
3390 | including this one defines coff_relocate_section to be | |
3391 | _bfd_coff_generic_relocate_section, so it is OK if it does not | |
3392 | always work. It is the responsibility of the including file to | |
3393 | make sure it is reasonable if it is needed. */ | |
3394 | ||
3395 | static reloc_howto_type *coff_rtype_to_howto | |
3396 | PARAMS ((bfd *, asection *, struct internal_reloc *, | |
3397 | struct coff_link_hash_entry *, struct internal_syment *, | |
3398 | bfd_vma *)); | |
3399 | ||
3400 | /*ARGSUSED*/ | |
3401 | static reloc_howto_type * | |
3402 | coff_rtype_to_howto (abfd, sec, rel, h, sym, addendp) | |
3403 | bfd *abfd; | |
3404 | asection *sec; | |
3405 | struct internal_reloc *rel; | |
3406 | struct coff_link_hash_entry *h; | |
3407 | struct internal_syment *sym; | |
3408 | bfd_vma *addendp; | |
3409 | { | |
3410 | arelent genrel; | |
3411 | ||
3412 | RTYPE2HOWTO (&genrel, rel); | |
3413 | return genrel.howto; | |
3414 | } | |
3415 | ||
3416 | #else /* ! defined (RTYPE2HOWTO) */ | |
3417 | ||
3418 | #define coff_rtype_to_howto NULL | |
3419 | ||
3420 | #endif /* ! defined (RTYPE2HOWTO) */ | |
3421 | #endif /* ! defined (coff_rtype_to_howto) */ | |
0f268757 | 3422 | |
cd83759c | 3423 | /* This is stupid. This function should be a boolean predicate. */ |
326e32d7 | 3424 | static long |
57a1867e DM |
3425 | coff_canonicalize_reloc (abfd, section, relptr, symbols) |
3426 | bfd * abfd; | |
3427 | sec_ptr section; | |
3428 | arelent ** relptr; | |
3429 | asymbol ** symbols; | |
85e0c721 | 3430 | { |
9783e04a DM |
3431 | arelent *tblptr = section->relocation; |
3432 | unsigned int count = 0; | |
cbdc7909 | 3433 | |
cbdc7909 | 3434 | |
9783e04a DM |
3435 | if (section->flags & SEC_CONSTRUCTOR) |
3436 | { | |
3437 | /* this section has relocs made up by us, they are not in the | |
e98e6ec1 SC |
3438 | file, so take them out of their chain and place them into |
3439 | the data area provided */ | |
9783e04a DM |
3440 | arelent_chain *chain = section->constructor_chain; |
3441 | for (count = 0; count < section->reloc_count; count++) | |
3442 | { | |
3443 | *relptr++ = &chain->relent; | |
3444 | chain = chain->next; | |
3445 | } | |
e98e6ec1 | 3446 | |
9783e04a DM |
3447 | } |
3448 | else | |
3449 | { | |
326e32d7 ILT |
3450 | if (! coff_slurp_reloc_table (abfd, section, symbols)) |
3451 | return -1; | |
85e0c721 | 3452 | |
9783e04a | 3453 | tblptr = section->relocation; |
85e0c721 | 3454 | |
9783e04a DM |
3455 | for (; count++ < section->reloc_count;) |
3456 | *relptr++ = tblptr++; | |
cbdc7909 | 3457 | |
85e0c721 | 3458 | |
9783e04a | 3459 | } |
e98e6ec1 SC |
3460 | *relptr = 0; |
3461 | return section->reloc_count; | |
85e0c721 | 3462 | } |
0f268757 | 3463 | |
0f268757 SC |
3464 | #ifdef GNU960 |
3465 | file_ptr | |
9783e04a DM |
3466 | coff_sym_filepos (abfd) |
3467 | bfd *abfd; | |
3468 | { | |
3469 | return obj_sym_filepos (abfd); | |
3470 | } | |
0f268757 SC |
3471 | #endif |
3472 | ||
fbb61b50 SC |
3473 | #ifndef coff_reloc16_estimate |
3474 | #define coff_reloc16_estimate dummy_reloc16_estimate | |
3475 | ||
56775366 | 3476 | static int |
09a28207 ILT |
3477 | dummy_reloc16_estimate (abfd, input_section, reloc, shrink, link_info) |
3478 | bfd *abfd; | |
fbb61b50 | 3479 | asection *input_section; |
fbb61b50 | 3480 | arelent *reloc; |
56775366 | 3481 | unsigned int shrink; |
330595d0 | 3482 | struct bfd_link_info *link_info; |
fbb61b50 | 3483 | { |
56775366 | 3484 | abort (); |
fbb61b50 SC |
3485 | } |
3486 | ||
3487 | #endif | |
3488 | ||
075caafd | 3489 | #ifndef coff_reloc16_extra_cases |
9e768fa2 JK |
3490 | #define coff_reloc16_extra_cases dummy_reloc16_extra_cases |
3491 | /* This works even if abort is not declared in any header file. */ | |
4d09e8ac | 3492 | static void |
330595d0 ILT |
3493 | dummy_reloc16_extra_cases (abfd, link_info, link_order, reloc, data, src_ptr, |
3494 | dst_ptr) | |
9e768fa2 | 3495 | bfd *abfd; |
330595d0 ILT |
3496 | struct bfd_link_info *link_info; |
3497 | struct bfd_link_order *link_order; | |
9e768fa2 JK |
3498 | arelent *reloc; |
3499 | bfd_byte *data; | |
3500 | unsigned int *src_ptr; | |
3501 | unsigned int *dst_ptr; | |
3502 | { | |
3503 | abort (); | |
3504 | } | |
8ad2a31d | 3505 | #endif |
6590a8c9 | 3506 | |
69645d10 ILT |
3507 | /* If coff_relocate_section is defined, we can use the optimized COFF |
3508 | backend linker. Otherwise we must continue to use the old linker. */ | |
3509 | #ifdef coff_relocate_section | |
f135c692 | 3510 | #ifndef coff_bfd_link_hash_table_create |
69645d10 | 3511 | #define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create |
f135c692 ILT |
3512 | #endif |
3513 | #ifndef coff_bfd_link_add_symbols | |
69645d10 | 3514 | #define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols |
f135c692 ILT |
3515 | #endif |
3516 | #ifndef coff_bfd_final_link | |
69645d10 | 3517 | #define coff_bfd_final_link _bfd_coff_final_link |
f135c692 | 3518 | #endif |
69645d10 ILT |
3519 | #else /* ! defined (coff_relocate_section) */ |
3520 | #define coff_relocate_section NULL | |
3521 | #define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create | |
3522 | #define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols | |
3523 | #define coff_bfd_final_link _bfd_generic_final_link | |
3524 | #endif /* ! defined (coff_relocate_section) */ | |
89665c85 | 3525 | #define coff_bfd_link_split_section _bfd_generic_link_split_section |
69645d10 | 3526 | |
a208a70f ILT |
3527 | #ifndef coff_start_final_link |
3528 | #define coff_start_final_link NULL | |
3529 | #endif | |
3530 | ||
f135c692 ILT |
3531 | #ifndef coff_adjust_symndx |
3532 | #define coff_adjust_symndx NULL | |
3533 | #endif | |
3534 | ||
d19df9b5 ILT |
3535 | #ifndef coff_link_add_one_symbol |
3536 | #define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol | |
3537 | #endif | |
3538 | ||
9783e04a DM |
3539 | static CONST bfd_coff_backend_data bfd_coff_std_swap_table = |
3540 | { | |
3541 | coff_swap_aux_in, coff_swap_sym_in, coff_swap_lineno_in, | |
3542 | coff_swap_aux_out, coff_swap_sym_out, | |
3543 | coff_swap_lineno_out, coff_swap_reloc_out, | |
3544 | coff_swap_filehdr_out, coff_swap_aouthdr_out, | |
3545 | coff_swap_scnhdr_out, | |
69645d10 | 3546 | FILHSZ, AOUTSZ, SCNHSZ, SYMESZ, AUXESZ, RELSZ, LINESZ, |
075caafd | 3547 | #ifdef COFF_LONG_FILENAMES |
9783e04a | 3548 | true, |
075caafd | 3549 | #else |
9783e04a | 3550 | false, |
07de8e96 | 3551 | #endif |
9783e04a | 3552 | coff_swap_filehdr_in, coff_swap_aouthdr_in, coff_swap_scnhdr_in, |
69645d10 | 3553 | coff_swap_reloc_in, coff_bad_format_hook, coff_set_arch_mach_hook, |
1af85fbb | 3554 | coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook, |
c80cc833 | 3555 | coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook, |
0fc9ada9 | 3556 | coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate, |
69645d10 | 3557 | coff_sym_is_global, coff_compute_section_file_positions, |
a208a70f | 3558 | coff_start_final_link, coff_relocate_section, coff_rtype_to_howto, |
d19df9b5 | 3559 | coff_adjust_symndx, coff_link_add_one_symbol |
075caafd | 3560 | }; |
0f268757 | 3561 | |
6812b607 ILT |
3562 | #define coff_close_and_cleanup _bfd_generic_close_and_cleanup |
3563 | #define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info | |
3564 | #define coff_get_section_contents _bfd_generic_get_section_contents | |
09a28207 | 3565 | |
db344f82 SC |
3566 | #ifndef coff_bfd_copy_private_symbol_data |
3567 | #define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data | |
3568 | #endif | |
3569 | ||
3570 | #ifndef coff_bfd_copy_private_section_data | |
3571 | #define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data | |
3572 | #endif | |
3573 | ||
3574 | #ifndef coff_bfd_copy_private_bfd_data | |
6812b607 | 3575 | #define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data |
db344f82 SC |
3576 | #endif |
3577 | ||
89665c85 SC |
3578 | #define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data |
3579 | #define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags | |
6812b607 | 3580 | |
beee31b1 | 3581 | #ifndef coff_bfd_print_private_bfd_data |
db344f82 | 3582 | #define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data |
beee31b1 SC |
3583 | #endif |
3584 | ||
09a28207 ILT |
3585 | #ifndef coff_bfd_is_local_label |
3586 | #define coff_bfd_is_local_label bfd_generic_is_local_label | |
3587 | #endif | |
e9614321 SC |
3588 | #ifndef coff_read_minisymbols |
3589 | #define coff_read_minisymbols _bfd_generic_read_minisymbols | |
3590 | #endif | |
3591 | #ifndef coff_minisymbol_to_symbol | |
3592 | #define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol | |
3593 | #endif | |
6812b607 ILT |
3594 | |
3595 | /* The reloc lookup routine must be supplied by each individual COFF | |
3596 | backend. */ | |
3597 | #ifndef coff_bfd_reloc_type_lookup | |
3598 | #define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup | |
3599 | #endif | |
3600 | ||
e9614321 | 3601 | #ifndef coff_bfd_get_relocated_section_contents |
6812b607 ILT |
3602 | #define coff_bfd_get_relocated_section_contents \ |
3603 | bfd_generic_get_relocated_section_contents | |
e9614321 SC |
3604 | #endif |
3605 | #ifndef coff_bfd_relax_section | |
6812b607 | 3606 | #define coff_bfd_relax_section bfd_generic_relax_section |
e9614321 | 3607 | #endif |