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6d7c88c3 | 1 | /* Support for the generic parts of most COFF variants, for BFD. |
f135c692 | 2 | Copyright 1990, 91, 92, 93, 94, 1995 Free Software Foundation, Inc. |
7a8b18b6 | 3 | Written by Cygnus Support. |
0f268757 | 4 | |
7a8b18b6 | 5 | This file is part of BFD, the Binary File Descriptor library. |
0f268757 | 6 | |
7a8b18b6 SC |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
0f268757 | 11 | |
7a8b18b6 SC |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
0f268757 | 16 | |
7a8b18b6 SC |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software | |
e9614321 | 19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
6f715d66 | 20 | |
9783e04a | 21 | /* |
6590a8c9 | 22 | Most of this hacked by Steve Chamberlain, |
9783e04a | 23 | sac@cygnus.com |
6590a8c9 | 24 | */ |
9fda1a39 | 25 | /* |
6f715d66 | 26 | |
9fda1a39 SC |
27 | SECTION |
28 | coff backends | |
29 | ||
9fda1a39 | 30 | BFD supports a number of different flavours of coff format. |
c188b0be | 31 | The major differences between formats are the sizes and |
9fda1a39 | 32 | alignments of fields in structures on disk, and the occasional |
9783e04a | 33 | extra field. |
9fda1a39 | 34 | |
c188b0be | 35 | Coff in all its varieties is implemented with a few common |
9fda1a39 SC |
36 | files and a number of implementation specific files. For |
37 | example, The 88k bcs coff format is implemented in the file | |
c188b0be DM |
38 | @file{coff-m88k.c}. This file @code{#include}s |
39 | @file{coff/m88k.h} which defines the external structure of the | |
40 | coff format for the 88k, and @file{coff/internal.h} which | |
41 | defines the internal structure. @file{coff-m88k.c} also | |
075caafd ILT |
42 | defines the relocations used by the 88k format |
43 | @xref{Relocations}. | |
9fda1a39 SC |
44 | |
45 | The Intel i960 processor version of coff is implemented in | |
c188b0be DM |
46 | @file{coff-i960.c}. This file has the same structure as |
47 | @file{coff-m88k.c}, except that it includes @file{coff/i960.h} | |
9783e04a | 48 | rather than @file{coff-m88k.h}. |
9fda1a39 SC |
49 | |
50 | SUBSECTION | |
c188b0be | 51 | Porting to a new version of coff |
9fda1a39 | 52 | |
9fda1a39 | 53 | The recommended method is to select from the existing |
c188b0be DM |
54 | implementations the version of coff which is most like the one |
55 | you want to use. For example, we'll say that i386 coff is | |
9fda1a39 | 56 | the one you select, and that your coff flavour is called foo. |
c188b0be DM |
57 | Copy @file{i386coff.c} to @file{foocoff.c}, copy |
58 | @file{../include/coff/i386.h} to @file{../include/coff/foo.h}, | |
59 | and add the lines to @file{targets.c} and @file{Makefile.in} | |
9fda1a39 | 60 | so that your new back end is used. Alter the shapes of the |
c188b0be | 61 | structures in @file{../include/coff/foo.h} so that they match |
9fda1a39 | 62 | what you need. You will probably also have to add |
c188b0be | 63 | @code{#ifdef}s to the code in @file{coff/internal.h} and |
9783e04a | 64 | @file{coffcode.h} if your version of coff is too wild. |
9fda1a39 SC |
65 | |
66 | You can verify that your new BFD backend works quite simply by | |
c188b0be DM |
67 | building @file{objdump} from the @file{binutils} directory, |
68 | and making sure that its version of what's going on and your | |
69 | host system's idea (assuming it has the pretty standard coff | |
70 | dump utility, usually called @code{att-dump} or just | |
71 | @code{dump}) are the same. Then clean up your code, and send | |
9fda1a39 SC |
72 | what you've done to Cygnus. Then your stuff will be in the |
73 | next release, and you won't have to keep integrating it. | |
74 | ||
75 | SUBSECTION | |
c188b0be | 76 | How the coff backend works |
9fda1a39 | 77 | |
075caafd | 78 | SUBSUBSECTION |
c188b0be | 79 | File layout |
075caafd ILT |
80 | |
81 | The Coff backend is split into generic routines that are | |
82 | applicable to any Coff target and routines that are specific | |
83 | to a particular target. The target-specific routines are | |
84 | further split into ones which are basically the same for all | |
85 | Coff targets except that they use the external symbol format | |
86 | or use different values for certain constants. | |
87 | ||
88 | The generic routines are in @file{coffgen.c}. These routines | |
89 | work for any Coff target. They use some hooks into the target | |
90 | specific code; the hooks are in a @code{bfd_coff_backend_data} | |
91 | structure, one of which exists for each target. | |
92 | ||
93 | The essentially similar target-specific routines are in | |
c188b0be | 94 | @file{coffcode.h}. This header file includes executable C code. |
075caafd ILT |
95 | The various Coff targets first include the appropriate Coff |
96 | header file, make any special defines that are needed, and | |
97 | then include @file{coffcode.h}. | |
98 | ||
99 | Some of the Coff targets then also have additional routines in | |
100 | the target source file itself. | |
101 | ||
102 | For example, @file{coff-i960.c} includes | |
103 | @file{coff/internal.h} and @file{coff/i960.h}. It then | |
104 | defines a few constants, such as @code{I960}, and includes | |
105 | @file{coffcode.h}. Since the i960 has complex relocation | |
106 | types, @file{coff-i960.c} also includes some code to | |
107 | manipulate the i960 relocs. This code is not in | |
108 | @file{coffcode.h} because it would not be used by any other | |
109 | target. | |
110 | ||
9fda1a39 | 111 | SUBSUBSECTION |
c188b0be | 112 | Bit twiddling |
9fda1a39 | 113 | |
9fda1a39 | 114 | Each flavour of coff supported in BFD has its own header file |
c188b0be DM |
115 | describing the external layout of the structures. There is also |
116 | an internal description of the coff layout, in | |
117 | @file{coff/internal.h}. A major function of the | |
9fda1a39 SC |
118 | coff backend is swapping the bytes and twiddling the bits to |
119 | translate the external form of the structures into the normal | |
120 | internal form. This is all performed in the | |
121 | @code{bfd_swap}_@i{thing}_@i{direction} routines. Some | |
122 | elements are different sizes between different versions of | |
c188b0be | 123 | coff; it is the duty of the coff version specific include file |
9fda1a39 | 124 | to override the definitions of various packing routines in |
c188b0be | 125 | @file{coffcode.h}. E.g., the size of line number entry in coff is |
9fda1a39 SC |
126 | sometimes 16 bits, and sometimes 32 bits. @code{#define}ing |
127 | @code{PUT_LNSZ_LNNO} and @code{GET_LNSZ_LNNO} will select the | |
128 | correct one. No doubt, some day someone will find a version of | |
c188b0be | 129 | coff which has a varying field size not catered to at the |
9783e04a | 130 | moment. To port BFD, that person will have to add more @code{#defines}. |
9fda1a39 SC |
131 | Three of the bit twiddling routines are exported to |
132 | @code{gdb}; @code{coff_swap_aux_in}, @code{coff_swap_sym_in} | |
133 | and @code{coff_swap_linno_in}. @code{GDB} reads the symbol | |
134 | table on its own, but uses BFD to fix things up. More of the | |
135 | bit twiddlers are exported for @code{gas}; | |
136 | @code{coff_swap_aux_out}, @code{coff_swap_sym_out}, | |
137 | @code{coff_swap_lineno_out}, @code{coff_swap_reloc_out}, | |
138 | @code{coff_swap_filehdr_out}, @code{coff_swap_aouthdr_out}, | |
139 | @code{coff_swap_scnhdr_out}. @code{Gas} currently keeps track | |
140 | of all the symbol table and reloc drudgery itself, thereby | |
141 | saving the internal BFD overhead, but uses BFD to swap things | |
c188b0be | 142 | on the way out, making cross ports much safer. Doing so also |
9fda1a39 SC |
143 | allows BFD (and thus the linker) to use the same header files |
144 | as @code{gas}, which makes one avenue to disaster disappear. | |
145 | ||
146 | SUBSUBSECTION | |
c188b0be | 147 | Symbol reading |
9fda1a39 | 148 | |
9fda1a39 SC |
149 | The simple canonical form for symbols used by BFD is not rich |
150 | enough to keep all the information available in a coff symbol | |
c188b0be | 151 | table. The back end gets around this problem by keeping the original |
9783e04a | 152 | symbol table around, "behind the scenes". |
9fda1a39 SC |
153 | |
154 | When a symbol table is requested (through a call to | |
c188b0be | 155 | @code{bfd_canonicalize_symtab}), a request gets through to |
075caafd | 156 | @code{coff_get_normalized_symtab}. This reads the symbol table from |
9fda1a39 SC |
157 | the coff file and swaps all the structures inside into the |
158 | internal form. It also fixes up all the pointers in the table | |
159 | (represented in the file by offsets from the first symbol in | |
160 | the table) into physical pointers to elements in the new | |
161 | internal table. This involves some work since the meanings of | |
c188b0be | 162 | fields change depending upon context: a field that is a |
9fda1a39 | 163 | pointer to another structure in the symbol table at one moment |
c188b0be | 164 | may be the size in bytes of a structure at the next. Another |
9fda1a39 | 165 | pass is made over the table. All symbols which mark file names |
616ebcfd | 166 | (<<C_FILE>> symbols) are modified so that the internal |
9fda1a39 SC |
167 | string points to the value in the auxent (the real filename) |
168 | rather than the normal text associated with the symbol | |
9783e04a | 169 | (@code{".file"}). |
9fda1a39 SC |
170 | |
171 | At this time the symbol names are moved around. Coff stores | |
172 | all symbols less than nine characters long physically | |
c188b0be | 173 | within the symbol table; longer strings are kept at the end of |
9fda1a39 | 174 | the file in the string table. This pass moves all strings |
c188b0be | 175 | into memory and replaces them with pointers to the strings. |
9fda1a39 SC |
176 | |
177 | ||
178 | The symbol table is massaged once again, this time to create | |
179 | the canonical table used by the BFD application. Each symbol | |
180 | is inspected in turn, and a decision made (using the | |
181 | @code{sclass} field) about the various flags to set in the | |
c188b0be | 182 | @code{asymbol}. @xref{Symbols}. The generated canonical table |
9783e04a | 183 | shares strings with the hidden internal symbol table. |
9fda1a39 SC |
184 | |
185 | Any linenumbers are read from the coff file too, and attached | |
9783e04a | 186 | to the symbols which own the functions the linenumbers belong to. |
9fda1a39 SC |
187 | |
188 | SUBSUBSECTION | |
c188b0be | 189 | Symbol writing |
9fda1a39 | 190 | |
9fda1a39 SC |
191 | Writing a symbol to a coff file which didn't come from a coff |
192 | file will lose any debugging information. The @code{asymbol} | |
c188b0be DM |
193 | structure remembers the BFD from which the symbol was taken, and on |
194 | output the back end makes sure that the same destination target as | |
9fda1a39 SC |
195 | source target is present. |
196 | ||
197 | When the symbols have come from a coff file then all the | |
198 | debugging information is preserved. | |
199 | ||
200 | Symbol tables are provided for writing to the back end in a | |
201 | vector of pointers to pointers. This allows applications like | |
202 | the linker to accumulate and output large symbol tables | |
203 | without having to do too much byte copying. | |
204 | ||
9fda1a39 SC |
205 | This function runs through the provided symbol table and |
206 | patches each symbol marked as a file place holder | |
207 | (@code{C_FILE}) to point to the next file place holder in the | |
208 | list. It also marks each @code{offset} field in the list with | |
209 | the offset from the first symbol of the current symbol. | |
210 | ||
211 | Another function of this procedure is to turn the canonical | |
212 | value form of BFD into the form used by coff. Internally, BFD | |
213 | expects symbol values to be offsets from a section base; so a | |
214 | symbol physically at 0x120, but in a section starting at | |
215 | 0x100, would have the value 0x20. Coff expects symbols to | |
216 | contain their final value, so symbols have their values | |
217 | changed at this point to reflect their sum with their owning | |
c188b0be | 218 | section. This transformation uses the |
9fda1a39 | 219 | <<output_section>> field of the @code{asymbol}'s |
9783e04a | 220 | @code{asection} @xref{Sections}. |
9fda1a39 | 221 | |
c188b0be | 222 | o <<coff_mangle_symbols>> |
616ebcfd | 223 | |
9fda1a39 SC |
224 | This routine runs though the provided symbol table and uses |
225 | the offsets generated by the previous pass and the pointers | |
226 | generated when the symbol table was read in to create the | |
227 | structured hierachy required by coff. It changes each pointer | |
c188b0be | 228 | to a symbol into the index into the symbol table of the asymbol. |
9fda1a39 | 229 | |
c188b0be | 230 | o <<coff_write_symbols>> |
616ebcfd | 231 | |
9fda1a39 SC |
232 | This routine runs through the symbol table and patches up the |
233 | symbols from their internal form into the coff way, calls the | |
9783e04a | 234 | bit twiddlers, and writes out the table to the file. |
6f715d66 | 235 | |
9fda1a39 | 236 | */ |
6f715d66 | 237 | |
9fda1a39 | 238 | /* |
616ebcfd SC |
239 | INTERNAL_DEFINITION |
240 | coff_symbol_type | |
6f715d66 | 241 | |
616ebcfd | 242 | DESCRIPTION |
c188b0be DM |
243 | The hidden information for an <<asymbol>> is described in a |
244 | <<combined_entry_type>>: | |
6f715d66 | 245 | |
616ebcfd | 246 | CODE_FRAGMENT |
e98e6ec1 | 247 | . |
9783e04a | 248 | .typedef struct coff_ptr_struct |
616ebcfd SC |
249 | .{ |
250 | . | |
251 | . {* Remembers the offset from the first symbol in the file for | |
252 | . this symbol. Generated by coff_renumber_symbols. *} | |
253 | .unsigned int offset; | |
254 | . | |
9783e04a DM |
255 | . {* Should the value of this symbol be renumbered. Used for |
256 | . XCOFF C_BSTAT symbols. Set by coff_slurp_symbol_table. *} | |
257 | .unsigned int fix_value : 1; | |
258 | . | |
616ebcfd SC |
259 | . {* Should the tag field of this symbol be renumbered. |
260 | . Created by coff_pointerize_aux. *} | |
9783e04a | 261 | .unsigned int fix_tag : 1; |
616ebcfd SC |
262 | . |
263 | . {* Should the endidx field of this symbol be renumbered. | |
264 | . Created by coff_pointerize_aux. *} | |
9783e04a DM |
265 | .unsigned int fix_end : 1; |
266 | . | |
267 | . {* Should the x_csect.x_scnlen field be renumbered. | |
268 | . Created by coff_slurp_symbol_table. *} | |
269 | .unsigned int fix_scnlen : 1; | |
616ebcfd SC |
270 | . |
271 | . {* The container for the symbol structure as read and translated | |
272 | . from the file. *} | |
273 | . | |
274 | .union { | |
275 | . union internal_auxent auxent; | |
276 | . struct internal_syment syment; | |
277 | . } u; | |
278 | .} combined_entry_type; | |
279 | . | |
280 | . | |
281 | .{* Each canonical asymbol really looks like this: *} | |
282 | . | |
283 | .typedef struct coff_symbol_struct | |
284 | .{ | |
285 | . {* The actual symbol which the rest of BFD works with *} | |
286 | .asymbol symbol; | |
287 | . | |
288 | . {* A pointer to the hidden information for this symbol *} | |
289 | .combined_entry_type *native; | |
290 | . | |
291 | . {* A pointer to the linenumber information for this symbol *} | |
292 | .struct lineno_cache_entry *lineno; | |
293 | . | |
d58b7049 SC |
294 | . {* Have the line numbers been relocated yet ? *} |
295 | .boolean done_lineno; | |
616ebcfd | 296 | .} coff_symbol_type; |
6f715d66 | 297 | |
6f715d66 | 298 | |
0f268757 SC |
299 | */ |
300 | ||
89665c85 SC |
301 | #ifndef IMAGE_BASE |
302 | #define IMAGE_BASE 0 | |
303 | #endif | |
304 | ||
e9614321 SC |
305 | |
306 | static bfd_vma | |
307 | pe_value(bfd_link_pe_info_dval *ptr, bfd_vma def) | |
308 | { | |
309 | if (ptr && ptr->defined) | |
310 | return ptr->value; | |
311 | return def; | |
312 | } | |
313 | ||
314 | ||
075caafd | 315 | #include "coffswap.h" |
0f268757 SC |
316 | \f |
317 | /* void warning(); */ | |
6f715d66 | 318 | |
cbdc7909 JG |
319 | /* |
320 | * Return a word with STYP_* (scnhdr.s_flags) flags set to represent the | |
41f50af0 SC |
321 | * incoming SEC_* flags. The inverse of this function is styp_to_sec_flags(). |
322 | * NOTE: If you add to/change this routine, you should mirror the changes | |
323 | * in styp_to_sec_flags(). | |
324 | */ | |
cbdc7909 | 325 | static long |
fbb61b50 SC |
326 | sec_to_styp_flags (sec_name, sec_flags) |
327 | CONST char *sec_name; | |
328 | flagword sec_flags; | |
41f50af0 | 329 | { |
47cf4997 SC |
330 | long styp_flags = 0; |
331 | ||
9783e04a | 332 | if (!strcmp (sec_name, _TEXT)) |
fbb61b50 SC |
333 | { |
334 | styp_flags = STYP_TEXT; | |
335 | } | |
9783e04a | 336 | else if (!strcmp (sec_name, _DATA)) |
fbb61b50 SC |
337 | { |
338 | styp_flags = STYP_DATA; | |
b26059aa | 339 | #ifdef TWO_DATA_SECS |
fbb61b50 | 340 | } |
9783e04a | 341 | else if (!strcmp (sec_name, ".data2")) |
fbb61b50 SC |
342 | { |
343 | styp_flags = STYP_DATA; | |
9783e04a | 344 | #endif /* TWO_DATA_SECS */ |
fbb61b50 | 345 | } |
9783e04a | 346 | else if (!strcmp (sec_name, _BSS)) |
fbb61b50 SC |
347 | { |
348 | styp_flags = STYP_BSS; | |
8c4a1ace | 349 | #ifdef _COMMENT |
9783e04a DM |
350 | } |
351 | else if (!strcmp (sec_name, _COMMENT)) | |
fbb61b50 SC |
352 | { |
353 | styp_flags = STYP_INFO; | |
9783e04a | 354 | #endif /* _COMMENT */ |
b26059aa | 355 | #ifdef _LIB |
fbb61b50 | 356 | } |
9783e04a | 357 | else if (!strcmp (sec_name, _LIB)) |
fbb61b50 SC |
358 | { |
359 | styp_flags = STYP_LIB; | |
9783e04a | 360 | #endif /* _LIB */ |
35d835c4 | 361 | #ifdef _LIT |
fbb61b50 | 362 | } |
35d835c4 | 363 | else if (!strcmp (sec_name, _LIT)) |
fbb61b50 SC |
364 | { |
365 | styp_flags = STYP_LIT; | |
35d835c4 | 366 | #endif /* _LIT */ |
fbb61b50 | 367 | } |
9783e04a | 368 | else if (!strcmp (sec_name, ".debug")) |
fbb61b50 | 369 | { |
9783e04a DM |
370 | #ifdef STYP_DEBUG |
371 | styp_flags = STYP_DEBUG; | |
372 | #else | |
fbb61b50 | 373 | styp_flags = STYP_INFO; |
9783e04a | 374 | #endif |
fbb61b50 | 375 | } |
89665c85 | 376 | else if (!strncmp (sec_name, ".stab", 5)) |
fbb61b50 SC |
377 | { |
378 | styp_flags = STYP_INFO; | |
379 | } | |
47cf4997 | 380 | /* Try and figure out what it should be */ |
9783e04a | 381 | else if (sec_flags & SEC_CODE) |
fbb61b50 SC |
382 | { |
383 | styp_flags = STYP_TEXT; | |
384 | } | |
9783e04a | 385 | else if (sec_flags & SEC_DATA) |
fbb61b50 SC |
386 | { |
387 | styp_flags = STYP_DATA; | |
388 | } | |
47cf4997 | 389 | else if (sec_flags & SEC_READONLY) |
fbb61b50 | 390 | { |
47cf4997 | 391 | #ifdef STYP_LIT /* 29k readonly text/data section */ |
fbb61b50 | 392 | styp_flags = STYP_LIT; |
41f50af0 | 393 | #else |
fbb61b50 | 394 | styp_flags = STYP_TEXT; |
9783e04a | 395 | #endif /* STYP_LIT */ |
fbb61b50 | 396 | } |
47cf4997 | 397 | else if (sec_flags & SEC_LOAD) |
fbb61b50 SC |
398 | { |
399 | styp_flags = STYP_TEXT; | |
400 | } | |
401 | else if (sec_flags & SEC_ALLOC) | |
402 | { | |
403 | styp_flags = STYP_BSS; | |
404 | } | |
41f50af0 | 405 | |
b26059aa | 406 | #ifdef STYP_NOLOAD |
c16313f0 | 407 | if ((sec_flags & (SEC_NEVER_LOAD | SEC_COFF_SHARED_LIBRARY)) != 0) |
9783e04a | 408 | styp_flags |= STYP_NOLOAD; |
b26059aa ILT |
409 | #endif |
410 | ||
9783e04a | 411 | return (styp_flags); |
41f50af0 | 412 | } |
cbdc7909 | 413 | /* |
41f50af0 | 414 | * Return a word with SEC_* flags set to represent the incoming |
cbdc7909 JG |
415 | * STYP_* flags (from scnhdr.s_flags). The inverse of this |
416 | * function is sec_to_styp_flags(). | |
41f50af0 SC |
417 | * NOTE: If you add to/change this routine, you should mirror the changes |
418 | * in sec_to_styp_flags(). | |
419 | */ | |
cbdc7909 | 420 | static flagword |
e8fbe6d9 ILT |
421 | styp_to_sec_flags (abfd, hdr, name) |
422 | bfd *abfd; | |
57a1867e | 423 | PTR hdr; |
e8fbe6d9 | 424 | const char *name; |
41f50af0 | 425 | { |
075caafd ILT |
426 | struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr; |
427 | long styp_flags = internal_s->s_flags; | |
9783e04a | 428 | flagword sec_flags = 0; |
41f50af0 | 429 | |
b26059aa ILT |
430 | #ifdef STYP_NOLOAD |
431 | if (styp_flags & STYP_NOLOAD) | |
9783e04a DM |
432 | { |
433 | sec_flags |= SEC_NEVER_LOAD; | |
434 | } | |
b26059aa ILT |
435 | #endif /* STYP_NOLOAD */ |
436 | ||
8f718ed3 ILT |
437 | /* For 386 COFF, at least, an unloadable text or data section is |
438 | actually a shared library section. */ | |
439 | if (styp_flags & STYP_TEXT) | |
9783e04a DM |
440 | { |
441 | if (sec_flags & SEC_NEVER_LOAD) | |
c16313f0 | 442 | sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY; |
9783e04a DM |
443 | else |
444 | sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
445 | } | |
8f718ed3 | 446 | else if (styp_flags & STYP_DATA) |
9783e04a DM |
447 | { |
448 | if (sec_flags & SEC_NEVER_LOAD) | |
c16313f0 | 449 | sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY; |
9783e04a DM |
450 | else |
451 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
452 | } | |
453 | else if (styp_flags & STYP_BSS) | |
454 | { | |
35d835c4 | 455 | #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY |
9783e04a | 456 | if (sec_flags & SEC_NEVER_LOAD) |
c16313f0 | 457 | sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY; |
9783e04a | 458 | else |
35d835c4 | 459 | #endif |
9783e04a DM |
460 | sec_flags |= SEC_ALLOC; |
461 | } | |
462 | else if (styp_flags & STYP_INFO) | |
fbb61b50 | 463 | { |
b5b056fc KR |
464 | /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is |
465 | defined. coff_compute_section_file_positions uses | |
466 | COFF_PAGE_SIZE to ensure that the low order bits of the | |
467 | section VMA and the file offset match. If we don't know | |
468 | COFF_PAGE_SIZE, we can't ensure the correct correspondence, | |
469 | and demand page loading of the file will fail. */ | |
470 | #ifdef COFF_PAGE_SIZE | |
471 | sec_flags |= SEC_DEBUGGING; | |
472 | #endif | |
fbb61b50 | 473 | } |
e8fbe6d9 ILT |
474 | else if (strcmp (name, _TEXT) == 0) |
475 | { | |
476 | if (sec_flags & SEC_NEVER_LOAD) | |
477 | sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY; | |
478 | else | |
479 | sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
480 | } | |
481 | else if (strcmp (name, _DATA) == 0 | |
482 | #ifdef TWO_DATA_SECS | |
483 | || strcmp (name, ".data2") == 0 | |
484 | #endif | |
485 | ) | |
486 | { | |
487 | if (sec_flags & SEC_NEVER_LOAD) | |
488 | sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY; | |
489 | else | |
490 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
491 | } | |
492 | else if (strcmp (name, _BSS) == 0) | |
493 | { | |
494 | #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY | |
495 | if (sec_flags & SEC_NEVER_LOAD) | |
496 | sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY; | |
497 | else | |
498 | #endif | |
499 | sec_flags |= SEC_ALLOC; | |
500 | } | |
501 | else if (strcmp (name, ".debug") == 0 | |
502 | #ifdef _COMMENT | |
503 | || strcmp (name, _COMMENT) == 0 | |
504 | #endif | |
89665c85 | 505 | || strncmp (name, ".stab", 5) == 0) |
e8fbe6d9 ILT |
506 | { |
507 | #ifdef COFF_PAGE_SIZE | |
508 | sec_flags |= SEC_DEBUGGING; | |
509 | #endif | |
510 | } | |
511 | #ifdef _LIB | |
512 | else if (strcmp (name, _LIB) == 0) | |
513 | ; | |
514 | #endif | |
515 | #ifdef _LIT | |
516 | else if (strcmp (name, _LIT) == 0) | |
517 | { | |
518 | sec_flags = SEC_LOAD | SEC_ALLOC | SEC_READONLY; | |
519 | } | |
520 | #endif | |
8070f29d | 521 | else |
9783e04a DM |
522 | { |
523 | sec_flags |= SEC_ALLOC | SEC_LOAD; | |
524 | } | |
b26059aa | 525 | |
8070f29d KR |
526 | #ifdef STYP_LIT /* A29k readonly text/data section type */ |
527 | if ((styp_flags & STYP_LIT) == STYP_LIT) | |
9783e04a DM |
528 | { |
529 | sec_flags = (SEC_LOAD | SEC_ALLOC | SEC_READONLY); | |
530 | } | |
531 | #endif /* STYP_LIT */ | |
8070f29d KR |
532 | #ifdef STYP_OTHER_LOAD /* Other loaded sections */ |
533 | if (styp_flags & STYP_OTHER_LOAD) | |
9783e04a DM |
534 | { |
535 | sec_flags = (SEC_LOAD | SEC_ALLOC); | |
536 | } | |
537 | #endif /* STYP_SDATA */ | |
41f50af0 | 538 | |
9783e04a | 539 | return (sec_flags); |
41f50af0 | 540 | } |
0f268757 | 541 | |
f135c692 | 542 | #define get_index(symbol) ((symbol)->udata.i) |
0f268757 | 543 | |
07de8e96 KR |
544 | /* |
545 | INTERNAL_DEFINITION | |
546 | bfd_coff_backend_data | |
547 | ||
548 | CODE_FRAGMENT | |
549 | ||
c188b0be | 550 | Special entry points for gdb to swap in coff symbol table parts: |
9783e04a | 551 | .typedef struct |
60ac749c | 552 | .{ |
07de8e96 | 553 | . void (*_bfd_coff_swap_aux_in) PARAMS (( |
330595d0 | 554 | . bfd *abfd, |
07de8e96 KR |
555 | . PTR ext, |
556 | . int type, | |
330595d0 ILT |
557 | . int class, |
558 | . int indaux, | |
559 | . int numaux, | |
07de8e96 KR |
560 | . PTR in)); |
561 | . | |
562 | . void (*_bfd_coff_swap_sym_in) PARAMS (( | |
563 | . bfd *abfd , | |
564 | . PTR ext, | |
565 | . PTR in)); | |
566 | . | |
567 | . void (*_bfd_coff_swap_lineno_in) PARAMS (( | |
568 | . bfd *abfd, | |
569 | . PTR ext, | |
570 | . PTR in)); | |
571 | . | |
572 | ||
c188b0be | 573 | Special entry points for gas to swap out coff parts: |
07de8e96 KR |
574 | |
575 | . unsigned int (*_bfd_coff_swap_aux_out) PARAMS (( | |
576 | . bfd *abfd, | |
577 | . PTR in, | |
578 | . int type, | |
579 | . int class, | |
330595d0 ILT |
580 | . int indaux, |
581 | . int numaux, | |
07de8e96 KR |
582 | . PTR ext)); |
583 | . | |
584 | . unsigned int (*_bfd_coff_swap_sym_out) PARAMS (( | |
585 | . bfd *abfd, | |
586 | . PTR in, | |
587 | . PTR ext)); | |
588 | . | |
589 | . unsigned int (*_bfd_coff_swap_lineno_out) PARAMS (( | |
590 | . bfd *abfd, | |
591 | . PTR in, | |
592 | . PTR ext)); | |
593 | . | |
594 | . unsigned int (*_bfd_coff_swap_reloc_out) PARAMS (( | |
595 | . bfd *abfd, | |
596 | . PTR src, | |
597 | . PTR dst)); | |
598 | . | |
599 | . unsigned int (*_bfd_coff_swap_filehdr_out) PARAMS (( | |
600 | . bfd *abfd, | |
601 | . PTR in, | |
602 | . PTR out)); | |
603 | . | |
604 | . unsigned int (*_bfd_coff_swap_aouthdr_out) PARAMS (( | |
605 | . bfd *abfd, | |
606 | . PTR in, | |
607 | . PTR out)); | |
608 | . | |
609 | . unsigned int (*_bfd_coff_swap_scnhdr_out) PARAMS (( | |
610 | . bfd *abfd, | |
611 | . PTR in, | |
612 | . PTR out)); | |
613 | . | |
075caafd ILT |
614 | |
615 | Special entry points for generic COFF routines to call target | |
c188b0be | 616 | dependent COFF routines: |
075caafd ILT |
617 | |
618 | . unsigned int _bfd_filhsz; | |
619 | . unsigned int _bfd_aoutsz; | |
620 | . unsigned int _bfd_scnhsz; | |
621 | . unsigned int _bfd_symesz; | |
622 | . unsigned int _bfd_auxesz; | |
69645d10 | 623 | . unsigned int _bfd_relsz; |
075caafd ILT |
624 | . unsigned int _bfd_linesz; |
625 | . boolean _bfd_coff_long_filenames; | |
626 | . void (*_bfd_coff_swap_filehdr_in) PARAMS (( | |
627 | . bfd *abfd, | |
628 | . PTR ext, | |
629 | . PTR in)); | |
630 | . void (*_bfd_coff_swap_aouthdr_in) PARAMS (( | |
631 | . bfd *abfd, | |
632 | . PTR ext, | |
633 | . PTR in)); | |
634 | . void (*_bfd_coff_swap_scnhdr_in) PARAMS (( | |
635 | . bfd *abfd, | |
636 | . PTR ext, | |
637 | . PTR in)); | |
69645d10 ILT |
638 | . void (*_bfd_coff_swap_reloc_in) PARAMS (( |
639 | . bfd *abfd, | |
640 | . PTR ext, | |
641 | . PTR in)); | |
075caafd ILT |
642 | . boolean (*_bfd_coff_bad_format_hook) PARAMS (( |
643 | . bfd *abfd, | |
644 | . PTR internal_filehdr)); | |
645 | . boolean (*_bfd_coff_set_arch_mach_hook) PARAMS (( | |
646 | . bfd *abfd, | |
647 | . PTR internal_filehdr)); | |
648 | . PTR (*_bfd_coff_mkobject_hook) PARAMS (( | |
649 | . bfd *abfd, | |
27f524a3 ILT |
650 | . PTR internal_filehdr, |
651 | . PTR internal_aouthdr)); | |
075caafd ILT |
652 | . flagword (*_bfd_styp_to_sec_flags_hook) PARAMS (( |
653 | . bfd *abfd, | |
e8fbe6d9 ILT |
654 | . PTR internal_scnhdr, |
655 | . const char *name)); | |
075caafd ILT |
656 | . asection *(*_bfd_make_section_hook) PARAMS (( |
657 | . bfd *abfd, | |
658 | . char *name)); | |
659 | . void (*_bfd_set_alignment_hook) PARAMS (( | |
660 | . bfd *abfd, | |
661 | . asection *sec, | |
662 | . PTR internal_scnhdr)); | |
663 | . boolean (*_bfd_coff_slurp_symbol_table) PARAMS (( | |
664 | . bfd *abfd)); | |
665 | . boolean (*_bfd_coff_symname_in_debug) PARAMS (( | |
666 | . bfd *abfd, | |
667 | . struct internal_syment *sym)); | |
668 | . void (*_bfd_coff_reloc16_extra_cases) PARAMS (( | |
669 | . bfd *abfd, | |
330595d0 ILT |
670 | . struct bfd_link_info *link_info, |
671 | . struct bfd_link_order *link_order, | |
075caafd ILT |
672 | . arelent *reloc, |
673 | . bfd_byte *data, | |
674 | . unsigned int *src_ptr, | |
675 | . unsigned int *dst_ptr)); | |
fbb61b50 | 676 | . int (*_bfd_coff_reloc16_estimate) PARAMS (( |
09a28207 | 677 | . bfd *abfd, |
fbb61b50 | 678 | . asection *input_section, |
fbb61b50 | 679 | . arelent *r, |
330595d0 ILT |
680 | . unsigned int shrink, |
681 | . struct bfd_link_info *link_info)); | |
69645d10 ILT |
682 | . boolean (*_bfd_coff_sym_is_global) PARAMS (( |
683 | . bfd *abfd, | |
684 | . struct internal_syment *)); | |
685 | . void (*_bfd_coff_compute_section_file_positions) PARAMS (( | |
686 | . bfd *abfd)); | |
687 | . boolean (*_bfd_coff_relocate_section) PARAMS (( | |
688 | . bfd *output_bfd, | |
689 | . struct bfd_link_info *info, | |
690 | . bfd *input_bfd, | |
691 | . asection *input_section, | |
692 | . bfd_byte *contents, | |
693 | . struct internal_reloc *relocs, | |
694 | . struct internal_syment *syms, | |
695 | . asection **sections)); | |
f135c692 ILT |
696 | . reloc_howto_type *(*_bfd_coff_rtype_to_howto) PARAMS (( |
697 | . bfd *abfd, | |
698 | . asection *sec, | |
699 | . struct internal_reloc *rel, | |
700 | . struct coff_link_hash_entry *h, | |
701 | . struct internal_syment *sym, | |
702 | . bfd_vma *addendp)); | |
703 | . boolean (*_bfd_coff_adjust_symndx) PARAMS (( | |
704 | . bfd *obfd, | |
705 | . struct bfd_link_info *info, | |
706 | . bfd *ibfd, | |
707 | . asection *sec, | |
708 | . struct internal_reloc *reloc, | |
709 | . boolean *adjustedp)); | |
fbb61b50 | 710 | . |
07de8e96 KR |
711 | .} bfd_coff_backend_data; |
712 | . | |
07de8e96 KR |
713 | .#define coff_backend_info(abfd) ((bfd_coff_backend_data *) (abfd)->xvec->backend_data) |
714 | . | |
330595d0 ILT |
715 | .#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \ |
716 | . ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i)) | |
07de8e96 KR |
717 | . |
718 | .#define bfd_coff_swap_sym_in(a,e,i) \ | |
719 | . ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i)) | |
720 | . | |
721 | .#define bfd_coff_swap_lineno_in(a,e,i) \ | |
722 | . ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i)) | |
723 | . | |
724 | .#define bfd_coff_swap_reloc_out(abfd, i, o) \ | |
725 | . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o)) | |
726 | . | |
727 | .#define bfd_coff_swap_lineno_out(abfd, i, o) \ | |
728 | . ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o)) | |
729 | . | |
330595d0 ILT |
730 | .#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \ |
731 | . ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o)) | |
07de8e96 KR |
732 | . |
733 | .#define bfd_coff_swap_sym_out(abfd, i,o) \ | |
734 | . ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o)) | |
735 | . | |
736 | .#define bfd_coff_swap_scnhdr_out(abfd, i,o) \ | |
737 | . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o)) | |
738 | . | |
739 | .#define bfd_coff_swap_filehdr_out(abfd, i,o) \ | |
740 | . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o)) | |
741 | . | |
742 | .#define bfd_coff_swap_aouthdr_out(abfd, i,o) \ | |
743 | . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o)) | |
744 | . | |
075caafd ILT |
745 | .#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz) |
746 | .#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz) | |
747 | .#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz) | |
748 | .#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz) | |
749 | .#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz) | |
69645d10 | 750 | .#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz) |
075caafd ILT |
751 | .#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz) |
752 | .#define bfd_coff_long_filenames(abfd) (coff_backend_info (abfd)->_bfd_coff_long_filenames) | |
753 | .#define bfd_coff_swap_filehdr_in(abfd, i,o) \ | |
754 | . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o)) | |
755 | . | |
756 | .#define bfd_coff_swap_aouthdr_in(abfd, i,o) \ | |
757 | . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o)) | |
758 | . | |
759 | .#define bfd_coff_swap_scnhdr_in(abfd, i,o) \ | |
760 | . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o)) | |
761 | . | |
69645d10 ILT |
762 | .#define bfd_coff_swap_reloc_in(abfd, i, o) \ |
763 | . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o)) | |
764 | . | |
075caafd ILT |
765 | .#define bfd_coff_bad_format_hook(abfd, filehdr) \ |
766 | . ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr)) | |
767 | . | |
768 | .#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\ | |
769 | . ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr)) | |
27f524a3 ILT |
770 | .#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\ |
771 | . ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook) (abfd, filehdr, aouthdr)) | |
075caafd | 772 | . |
e8fbe6d9 ILT |
773 | .#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name)\ |
774 | . ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook) (abfd, scnhdr, name)) | |
075caafd ILT |
775 | . |
776 | .#define bfd_coff_make_section_hook(abfd, name)\ | |
777 | . ((coff_backend_info (abfd)->_bfd_make_section_hook) (abfd, name)) | |
778 | . | |
779 | .#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\ | |
780 | . ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr)) | |
781 | . | |
782 | .#define bfd_coff_slurp_symbol_table(abfd)\ | |
783 | . ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd)) | |
784 | . | |
785 | .#define bfd_coff_symname_in_debug(abfd, sym)\ | |
786 | . ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym)) | |
787 | . | |
330595d0 | 788 | .#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)\ |
075caafd | 789 | . ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\ |
330595d0 | 790 | . (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)) |
fbb61b50 | 791 | . |
09a28207 | 792 | .#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\ |
fbb61b50 | 793 | . ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\ |
09a28207 | 794 | . (abfd, section, reloc, shrink, link_info)) |
9783e04a | 795 | . |
69645d10 ILT |
796 | .#define bfd_coff_sym_is_global(abfd, sym)\ |
797 | . ((coff_backend_info (abfd)->_bfd_coff_sym_is_global)\ | |
798 | . (abfd, sym)) | |
799 | . | |
800 | .#define bfd_coff_compute_section_file_positions(abfd)\ | |
801 | . ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\ | |
802 | . (abfd)) | |
803 | . | |
804 | .#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\ | |
805 | . ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\ | |
806 | . (obfd, info, ibfd, o, con, rel, isyms, secs)) | |
f135c692 ILT |
807 | .#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\ |
808 | . ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\ | |
809 | . (abfd, sec, rel, h, sym, addendp)) | |
810 | .#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\ | |
811 | . ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\ | |
812 | . (obfd, info, ibfd, sec, rel, adjustedp)) | |
69645d10 | 813 | . |
07de8e96 | 814 | */ |
0f268757 | 815 | |
075caafd | 816 | /* See whether the magic number matches. */ |
7a8b18b6 | 817 | |
075caafd | 818 | static boolean |
57a1867e DM |
819 | coff_bad_format_hook (abfd, filehdr) |
820 | bfd * abfd; | |
821 | PTR filehdr; | |
0f268757 | 822 | { |
075caafd | 823 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; |
0f268757 | 824 | |
075caafd ILT |
825 | if (BADMAG (*internal_f)) |
826 | return false; | |
0f268757 | 827 | |
075caafd ILT |
828 | /* if the optional header is NULL or not the correct size then |
829 | quit; the only difference I can see between m88k dgux headers (MC88DMAGIC) | |
830 | and Intel 960 readwrite headers (I960WRMAGIC) is that the | |
831 | optional header is of a different size. | |
cbdc7909 | 832 | |
075caafd ILT |
833 | But the mips keeps extra stuff in it's opthdr, so dont check |
834 | when doing that | |
835 | */ | |
0f268757 | 836 | |
075caafd ILT |
837 | #if defined(M88) || defined(I960) |
838 | if (internal_f->f_opthdr != 0 && AOUTSZ != internal_f->f_opthdr) | |
839 | return false; | |
0f268757 | 840 | #endif |
0f268757 | 841 | |
075caafd | 842 | return true; |
0f268757 SC |
843 | } |
844 | ||
075caafd | 845 | static asection * |
57a1867e DM |
846 | coff_make_section_hook (abfd, name) |
847 | bfd * abfd; | |
848 | char *name; | |
0f268757 | 849 | { |
075caafd | 850 | #ifdef TWO_DATA_SECS |
fbb61b50 SC |
851 | /* FIXME: This predates the call to bfd_make_section_anyway |
852 | in make_a_section_from_file, and can probably go away. */ | |
075caafd ILT |
853 | /* On SCO a file created by the Microsoft assembler can have two |
854 | .data sections. We use .data2 for the second one. */ | |
855 | if (strcmp (name, _DATA) == 0) | |
856 | return bfd_make_section (abfd, ".data2"); | |
0f268757 | 857 | #endif |
075caafd | 858 | return (asection *) NULL; |
0f268757 SC |
859 | } |
860 | ||
861 | /* | |
862 | initialize a section structure with information peculiar to this | |
863 | particular implementation of coff | |
864 | */ | |
865 | ||
075caafd | 866 | static boolean |
57a1867e DM |
867 | coff_new_section_hook (abfd, section) |
868 | bfd * abfd; | |
869 | asection * section; | |
0f268757 | 870 | { |
f135c692 ILT |
871 | section->alignment_power = COFF_DEFAULT_SECTION_ALIGNMENT_POWER; |
872 | ||
8070f29d KR |
873 | /* Allocate aux records for section symbols, to store size and |
874 | related info. | |
875 | ||
876 | @@ Shouldn't use constant multiplier here! */ | |
877 | coffsymbol (section->symbol)->native = | |
878 | (combined_entry_type *) bfd_zalloc (abfd, | |
879 | sizeof (combined_entry_type) * 10); | |
c16313f0 | 880 | |
f135c692 ILT |
881 | /* The .stab section must be aligned to 2**2 at most, because |
882 | otherwise there may be gaps in the section which gdb will not | |
883 | know how to interpret. Examining the section name is a hack, but | |
884 | that is also how gdb locates the section. We also align the | |
885 | .stabstr section this way for backward compatibility, although I | |
886 | believe it would work anyhow. */ | |
887 | if (COFF_DEFAULT_SECTION_ALIGNMENT_POWER > 2 | |
89665c85 | 888 | && (strncmp (section->name, ".stab", 5) == 0)) |
f135c692 | 889 | section->alignment_power = 2; |
c16313f0 | 890 | |
0f268757 SC |
891 | return true; |
892 | } | |
893 | ||
0f268757 | 894 | #ifdef I960 |
e98e6ec1 | 895 | |
075caafd ILT |
896 | /* Set the alignment of a BFD section. */ |
897 | ||
898 | static void | |
57a1867e DM |
899 | coff_set_alignment_hook (abfd, section, scnhdr) |
900 | bfd * abfd; | |
901 | asection * section; | |
902 | PTR scnhdr; | |
e98e6ec1 | 903 | { |
075caafd ILT |
904 | struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr; |
905 | unsigned int i; | |
906 | ||
907 | for (i = 0; i < 32; i++) | |
908 | if ((1 << i) >= hdr->s_align) | |
909 | break; | |
910 | section->alignment_power = i; | |
e98e6ec1 SC |
911 | } |
912 | ||
075caafd | 913 | #else /* ! I960 */ |
0f268757 | 914 | |
075caafd ILT |
915 | #define coff_set_alignment_hook \ |
916 | ((void (*) PARAMS ((bfd *, asection *, PTR))) bfd_void) | |
41f50af0 | 917 | |
075caafd | 918 | #endif /* ! I960 */ |
0f268757 | 919 | |
9783e04a | 920 | static boolean |
57a1867e DM |
921 | coff_mkobject (abfd) |
922 | bfd * abfd; | |
0f268757 | 923 | { |
075caafd ILT |
924 | coff_data_type *coff; |
925 | ||
9783e04a DM |
926 | abfd->tdata.coff_obj_data = (struct coff_tdata *) bfd_zalloc (abfd, sizeof (coff_data_type)); |
927 | if (abfd->tdata.coff_obj_data == 0) | |
928 | { | |
57a1867e | 929 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
930 | return false; |
931 | } | |
075caafd ILT |
932 | coff = coff_data (abfd); |
933 | coff->symbols = (coff_symbol_type *) NULL; | |
934 | coff->conversion_table = (unsigned int *) NULL; | |
935 | coff->raw_syments = (struct coff_ptr_struct *) NULL; | |
075caafd | 936 | coff->relocbase = 0; |
6590a8c9 | 937 | /* make_abs_section(abfd);*/ |
89665c85 SC |
938 | |
939 | #ifdef COFF_WITH_PE | |
940 | obj_pe (abfd) = 1; | |
941 | #endif | |
0f268757 SC |
942 | return true; |
943 | } | |
944 | ||
075caafd ILT |
945 | /* Create the COFF backend specific information. */ |
946 | ||
9783e04a | 947 | static PTR |
57a1867e DM |
948 | coff_mkobject_hook (abfd, filehdr, aouthdr) |
949 | bfd * abfd; | |
950 | PTR filehdr; | |
951 | PTR aouthdr; | |
0f268757 | 952 | { |
075caafd | 953 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; |
0f268757 | 954 | coff_data_type *coff; |
cbdc7909 | 955 | |
075caafd ILT |
956 | if (coff_mkobject (abfd) == false) |
957 | return NULL; | |
e98e6ec1 | 958 | |
075caafd | 959 | coff = coff_data (abfd); |
cbdc7909 | 960 | |
075caafd | 961 | coff->sym_filepos = internal_f->f_symptr; |
cbdc7909 | 962 | |
075caafd ILT |
963 | /* These members communicate important constants about the symbol |
964 | table to GDB's symbol-reading code. These `constants' | |
965 | unfortunately vary among coff implementations... */ | |
966 | coff->local_n_btmask = N_BTMASK; | |
967 | coff->local_n_btshft = N_BTSHFT; | |
9783e04a | 968 | coff->local_n_tmask = N_TMASK; |
075caafd | 969 | coff->local_n_tshift = N_TSHIFT; |
9783e04a DM |
970 | coff->local_symesz = SYMESZ; |
971 | coff->local_auxesz = AUXESZ; | |
972 | coff->local_linesz = LINESZ; | |
cbdc7909 | 973 | |
69645d10 ILT |
974 | obj_raw_syment_count (abfd) = |
975 | obj_conv_table_size (abfd) = | |
976 | internal_f->f_nsyms; | |
977 | ||
075caafd ILT |
978 | return (PTR) coff; |
979 | } | |
cbdc7909 | 980 | |
075caafd ILT |
981 | /* Determine the machine architecture and type. FIXME: This is target |
982 | dependent because the magic numbers are defined in the target | |
983 | dependent header files. But there is no particular need for this. | |
984 | If the magic numbers were moved to a separate file, this function | |
985 | would be target independent and would also be much more successful | |
986 | at linking together COFF files for different architectures. */ | |
cbdc7909 | 987 | |
075caafd | 988 | static boolean |
9783e04a | 989 | coff_set_arch_mach_hook (abfd, filehdr) |
4d09e8ac JK |
990 | bfd *abfd; |
991 | PTR filehdr; | |
075caafd ILT |
992 | { |
993 | long machine; | |
994 | enum bfd_architecture arch; | |
995 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
e98e6ec1 | 996 | |
075caafd | 997 | machine = 0; |
9783e04a DM |
998 | switch (internal_f->f_magic) |
999 | { | |
20fdc627 | 1000 | #ifdef I386MAGIC |
9783e04a DM |
1001 | case I386MAGIC: |
1002 | case I386PTXMAGIC: | |
1003 | case I386AIXMAGIC: /* Danbury PS/2 AIX C Compiler */ | |
1004 | case LYNXCOFFMAGIC: /* shadows the m68k Lynx number below, sigh */ | |
1005 | arch = bfd_arch_i386; | |
1006 | machine = 0; | |
1007 | break; | |
20fdc627 | 1008 | #endif |
cbdc7909 | 1009 | #ifdef A29K_MAGIC_BIG |
9783e04a DM |
1010 | case A29K_MAGIC_BIG: |
1011 | case A29K_MAGIC_LITTLE: | |
1012 | arch = bfd_arch_a29k; | |
1013 | machine = 0; | |
1014 | break; | |
41f50af0 | 1015 | #endif |
89665c85 SC |
1016 | #ifdef ARMMAGIC |
1017 | case ARMMAGIC: | |
1018 | arch = bfd_arch_arm; | |
1019 | machine =0; | |
1020 | break; | |
1021 | #endif | |
0f268757 | 1022 | #ifdef MC68MAGIC |
9783e04a DM |
1023 | case MC68MAGIC: |
1024 | case M68MAGIC: | |
97eb2f0c | 1025 | #ifdef MC68KBCSMAGIC |
9783e04a | 1026 | case MC68KBCSMAGIC: |
97eb2f0c KR |
1027 | #endif |
1028 | #ifdef APOLLOM68KMAGIC | |
9783e04a | 1029 | case APOLLOM68KMAGIC: |
c188b0be DM |
1030 | #endif |
1031 | #ifdef LYNXCOFFMAGIC | |
9783e04a | 1032 | case LYNXCOFFMAGIC: |
97eb2f0c | 1033 | #endif |
9783e04a DM |
1034 | arch = bfd_arch_m68k; |
1035 | machine = 68020; | |
1036 | break; | |
0f268757 SC |
1037 | #endif |
1038 | #ifdef MC88MAGIC | |
9783e04a DM |
1039 | case MC88MAGIC: |
1040 | case MC88DMAGIC: | |
1041 | case MC88OMAGIC: | |
1042 | arch = bfd_arch_m88k; | |
1043 | machine = 88100; | |
1044 | break; | |
0f268757 | 1045 | #endif |
dc999ad9 | 1046 | #ifdef Z8KMAGIC |
9783e04a DM |
1047 | case Z8KMAGIC: |
1048 | arch = bfd_arch_z8k; | |
1049 | switch (internal_f->f_flags & F_MACHMASK) | |
1050 | { | |
1051 | case F_Z8001: | |
1052 | machine = bfd_mach_z8001; | |
1053 | break; | |
1054 | case F_Z8002: | |
1055 | machine = bfd_mach_z8002; | |
1056 | break; | |
1057 | default: | |
1058 | return false; | |
1059 | } | |
1060 | break; | |
dc999ad9 | 1061 | #endif |
0f268757 SC |
1062 | #ifdef I960 |
1063 | #ifdef I960ROMAGIC | |
9783e04a DM |
1064 | case I960ROMAGIC: |
1065 | case I960RWMAGIC: | |
1066 | arch = bfd_arch_i960; | |
1067 | switch (F_I960TYPE & internal_f->f_flags) | |
0f268757 SC |
1068 | { |
1069 | default: | |
1070 | case F_I960CORE: | |
0d740984 | 1071 | machine = bfd_mach_i960_core; |
0f268757 SC |
1072 | break; |
1073 | case F_I960KB: | |
0d740984 | 1074 | machine = bfd_mach_i960_kb_sb; |
0f268757 | 1075 | break; |
9783e04a | 1076 | case F_I960MC: |
0d740984 | 1077 | machine = bfd_mach_i960_mc; |
0f268757 SC |
1078 | break; |
1079 | case F_I960XA: | |
0d740984 | 1080 | machine = bfd_mach_i960_xa; |
0f268757 SC |
1081 | break; |
1082 | case F_I960CA: | |
0d740984 | 1083 | machine = bfd_mach_i960_ca; |
0f268757 SC |
1084 | break; |
1085 | case F_I960KA: | |
0d740984 | 1086 | machine = bfd_mach_i960_ka_sa; |
0f268757 | 1087 | break; |
b5b056fc KR |
1088 | /* start-sanitize-i960xl */ |
1089 | case F_I960XL: | |
1090 | machine = bfd_mach_i960_xl; | |
1091 | break; | |
1092 | /* end-sanitize-i960xl */ | |
0f268757 | 1093 | } |
9783e04a | 1094 | break; |
0f268757 SC |
1095 | #endif |
1096 | #endif | |
cbdc7909 JG |
1097 | |
1098 | #ifdef U802ROMAGIC | |
9783e04a DM |
1099 | case U802ROMAGIC: |
1100 | case U802WRMAGIC: | |
1101 | case U802TOCMAGIC: | |
1102 | arch = bfd_arch_rs6000; | |
1103 | machine = 6000; | |
1104 | break; | |
cbdc7909 JG |
1105 | #endif |
1106 | ||
dc999ad9 | 1107 | #ifdef WE32KMAGIC |
9783e04a DM |
1108 | case WE32KMAGIC: |
1109 | arch = bfd_arch_we32k; | |
1110 | machine = 0; | |
1111 | break; | |
dc999ad9 ILT |
1112 | #endif |
1113 | ||
3b4f1a5d | 1114 | #ifdef H8300MAGIC |
9783e04a DM |
1115 | case H8300MAGIC: |
1116 | arch = bfd_arch_h8300; | |
1117 | machine = bfd_mach_h8300; | |
1118 | /* !! FIXME this probably isn't the right place for this */ | |
1119 | abfd->flags |= BFD_IS_RELAXABLE; | |
1120 | break; | |
4d09e8ac JK |
1121 | #endif |
1122 | ||
1123 | #ifdef H8300HMAGIC | |
9783e04a DM |
1124 | case H8300HMAGIC: |
1125 | arch = bfd_arch_h8300; | |
1126 | machine = bfd_mach_h8300h; | |
1127 | /* !! FIXME this probably isn't the right place for this */ | |
1128 | abfd->flags |= BFD_IS_RELAXABLE; | |
1129 | break; | |
142ce43e SC |
1130 | #endif |
1131 | ||
f135c692 ILT |
1132 | #ifdef SH_ARCH_MAGIC_BIG |
1133 | case SH_ARCH_MAGIC_BIG: | |
1134 | case SH_ARCH_MAGIC_LITTLE: | |
9783e04a DM |
1135 | arch = bfd_arch_sh; |
1136 | machine = 0; | |
1137 | break; | |
9faacb92 SC |
1138 | #endif |
1139 | ||
142ce43e | 1140 | #ifdef H8500MAGIC |
9783e04a DM |
1141 | case H8500MAGIC: |
1142 | arch = bfd_arch_h8500; | |
1143 | machine = 0; | |
1144 | break; | |
3b4f1a5d | 1145 | #endif |
cbdc7909 | 1146 | |
c188b0be | 1147 | #ifdef SPARCMAGIC |
9783e04a | 1148 | case SPARCMAGIC: |
c16313f0 ILT |
1149 | #ifdef LYNXCOFFMAGIC |
1150 | case LYNXCOFFMAGIC: | |
1151 | #endif | |
9783e04a DM |
1152 | arch = bfd_arch_sparc; |
1153 | machine = 0; | |
1154 | break; | |
c188b0be DM |
1155 | #endif |
1156 | ||
9783e04a DM |
1157 | default: /* Unreadable input file type */ |
1158 | arch = bfd_arch_obscure; | |
1159 | break; | |
1160 | } | |
cbdc7909 | 1161 | |
9783e04a | 1162 | bfd_default_set_arch_mach (abfd, arch, machine); |
075caafd ILT |
1163 | return true; |
1164 | } | |
cbdc7909 | 1165 | |
075caafd | 1166 | #ifdef SYMNAME_IN_DEBUG |
6f715d66 | 1167 | |
075caafd | 1168 | static boolean |
57a1867e DM |
1169 | symname_in_debug_hook (abfd, sym) |
1170 | bfd * abfd; | |
1171 | struct internal_syment *sym; | |
075caafd ILT |
1172 | { |
1173 | return SYMNAME_IN_DEBUG (sym) ? true : false; | |
1174 | } | |
6f715d66 | 1175 | |
075caafd | 1176 | #else |
cbdc7909 | 1177 | |
075caafd ILT |
1178 | #define symname_in_debug_hook \ |
1179 | (boolean (*) PARAMS ((bfd *, struct internal_syment *))) bfd_false | |
cbdc7909 | 1180 | |
075caafd | 1181 | #endif |
7a8b18b6 | 1182 | |
9fda1a39 SC |
1183 | /* |
1184 | SUBSUBSECTION | |
c188b0be | 1185 | Writing relocations |
9fda1a39 | 1186 | |
c188b0be DM |
1187 | To write relocations, the back end steps though the |
1188 | canonical relocation table and create an | |
9fda1a39 | 1189 | @code{internal_reloc}. The symbol index to use is removed from |
c188b0be | 1190 | the @code{offset} field in the symbol table supplied. The |
9fda1a39 | 1191 | address comes directly from the sum of the section base |
c188b0be | 1192 | address and the relocation offset; the type is dug directly |
9fda1a39 SC |
1193 | from the howto field. Then the @code{internal_reloc} is |
1194 | swapped into the shape of an @code{external_reloc} and written | |
9783e04a | 1195 | out to disk. |
9fda1a39 | 1196 | |
6f715d66 | 1197 | */ |
0f268757 | 1198 | |
791a3db4 | 1199 | static boolean |
89665c85 | 1200 | coff_write_relocs (abfd, first_undef) |
57a1867e | 1201 | bfd * abfd; |
89665c85 | 1202 | int first_undef; |
6f715d66 | 1203 | { |
9783e04a DM |
1204 | asection *s; |
1205 | for (s = abfd->sections; s != (asection *) NULL; s = s->next) | |
1206 | { | |
1207 | unsigned int i; | |
1208 | struct external_reloc dst; | |
1209 | ||
1210 | arelent **p = s->orelocation; | |
791a3db4 ILT |
1211 | if (bfd_seek (abfd, s->rel_filepos, SEEK_SET) != 0) |
1212 | return false; | |
9783e04a DM |
1213 | for (i = 0; i < s->reloc_count; i++) |
1214 | { | |
1215 | struct internal_reloc n; | |
1216 | arelent *q = p[i]; | |
1217 | memset ((PTR) & n, 0, sizeof (n)); | |
1218 | ||
89665c85 SC |
1219 | /* Now we've renumbered the symbols we know where the |
1220 | undefined symbols live in the table. Check the reloc | |
1221 | entries for symbols who's output bfd isn't the right one. | |
1222 | This is because the symbol was undefined (which means | |
1223 | that all the pointers are never made to point to the same | |
1224 | place). This is a bad thing,'cause the symbols attached | |
1225 | to the output bfd are indexed, so that the relocation | |
1226 | entries know which symbol index they point to. So we | |
1227 | have to look up the output symbol here. */ | |
1228 | ||
1229 | if (q->sym_ptr_ptr[0]->the_bfd != abfd) | |
1230 | { | |
1231 | int i; | |
1232 | const char *sname = q->sym_ptr_ptr[0]->name; | |
1233 | asymbol **outsyms = abfd->outsymbols; | |
1234 | for (i = first_undef; outsyms[i]; i++) | |
1235 | { | |
1236 | const char *intable = outsyms[i]->name; | |
1237 | if (strcmp (intable, sname) == 0) { | |
1238 | /* got a hit, so repoint the reloc */ | |
1239 | q->sym_ptr_ptr = outsyms + i; | |
1240 | break; | |
1241 | } | |
1242 | } | |
1243 | } | |
1244 | ||
9783e04a DM |
1245 | n.r_vaddr = q->address + s->vma; |
1246 | ||
1247 | #ifdef R_IHCONST | |
1248 | /* The 29k const/consth reloc pair is a real kludge. The consth | |
89665c85 SC |
1249 | part doesn't have a symbol; it has an offset. So rebuilt |
1250 | that here. */ | |
9783e04a DM |
1251 | if (q->howto->type == R_IHCONST) |
1252 | n.r_symndx = q->addend; | |
1253 | else | |
780c477a | 1254 | #endif |
89665c85 SC |
1255 | if (q->sym_ptr_ptr) |
1256 | { | |
1257 | if (q->sym_ptr_ptr == bfd_abs_section_ptr->symbol_ptr_ptr) | |
1258 | /* This is a relocation relative to the absolute symbol. */ | |
1259 | n.r_symndx = -1; | |
1260 | else | |
1261 | { | |
1262 | n.r_symndx = get_index ((*(q->sym_ptr_ptr))); | |
1263 | /* Take notice if the symbol reloc points to a symbol | |
1264 | we don't have in our symbol table. What should we | |
1265 | do for this?? */ | |
1266 | if (n.r_symndx > obj_conv_table_size (abfd)) | |
1267 | abort (); | |
1268 | } | |
1269 | } | |
780c477a | 1270 | |
cd83759c | 1271 | #ifdef SWAP_OUT_RELOC_OFFSET |
9783e04a | 1272 | n.r_offset = q->addend; |
cd83759c | 1273 | #endif |
c26d7d17 | 1274 | |
0f268757 | 1275 | #ifdef SELECT_RELOC |
9783e04a DM |
1276 | /* Work out reloc type from what is required */ |
1277 | SELECT_RELOC (n, q->howto); | |
0f268757 | 1278 | #else |
9783e04a | 1279 | n.r_type = q->howto->type; |
0f268757 | 1280 | #endif |
9783e04a | 1281 | coff_swap_reloc_out (abfd, &n, &dst); |
791a3db4 ILT |
1282 | if (bfd_write ((PTR) & dst, 1, RELSZ, abfd) != RELSZ) |
1283 | return false; | |
9783e04a | 1284 | } |
0f268757 | 1285 | } |
791a3db4 ILT |
1286 | |
1287 | return true; | |
6f715d66 | 1288 | } |
7a8b18b6 SC |
1289 | |
1290 | /* Set flags and magic number of a coff file from architecture and machine | |
1291 | type. Result is true if we can represent the arch&type, false if not. */ | |
0f268757 | 1292 | |
9783e04a | 1293 | static boolean |
57a1867e DM |
1294 | coff_set_flags (abfd, magicp, flagsp) |
1295 | bfd * abfd; | |
1296 | unsigned *magicp; | |
1297 | unsigned short *flagsp; | |
6f715d66 | 1298 | { |
9783e04a | 1299 | switch (bfd_get_arch (abfd)) |
dc999ad9 | 1300 | { |
9783e04a DM |
1301 | #ifdef Z8KMAGIC |
1302 | case bfd_arch_z8k: | |
1303 | *magicp = Z8KMAGIC; | |
1304 | switch (bfd_get_mach (abfd)) | |
1305 | { | |
1306 | case bfd_mach_z8001: | |
1307 | *flagsp = F_Z8001; | |
1308 | break; | |
1309 | case bfd_mach_z8002: | |
1310 | *flagsp = F_Z8002; | |
1311 | break; | |
1312 | default: | |
1313 | return false; | |
1314 | } | |
1315 | return true; | |
dc999ad9 | 1316 | #endif |
0f268757 | 1317 | #ifdef I960ROMAGIC |
cbdc7909 | 1318 | |
3b4f1a5d | 1319 | case bfd_arch_i960: |
cbdc7909 | 1320 | |
6f715d66 | 1321 | { |
9783e04a | 1322 | unsigned flags; |
6f715d66 SC |
1323 | *magicp = I960ROMAGIC; |
1324 | /* | |
1325 | ((bfd_get_file_flags(abfd) & WP_TEXT) ? I960ROMAGIC : | |
1326 | I960RWMAGIC); FIXME??? | |
1327 | */ | |
9783e04a DM |
1328 | switch (bfd_get_mach (abfd)) |
1329 | { | |
1330 | case bfd_mach_i960_core: | |
1331 | flags = F_I960CORE; | |
1332 | break; | |
1333 | case bfd_mach_i960_kb_sb: | |
1334 | flags = F_I960KB; | |
1335 | break; | |
1336 | case bfd_mach_i960_mc: | |
1337 | flags = F_I960MC; | |
1338 | break; | |
1339 | case bfd_mach_i960_xa: | |
1340 | flags = F_I960XA; | |
1341 | break; | |
1342 | case bfd_mach_i960_ca: | |
1343 | flags = F_I960CA; | |
1344 | break; | |
1345 | case bfd_mach_i960_ka_sa: | |
1346 | flags = F_I960KA; | |
1347 | break; | |
b5b056fc KR |
1348 | /* start-sanitize-i960xl */ |
1349 | case bfd_mach_i960_xl: | |
1350 | flags = F_I960XL; | |
1351 | break; | |
1352 | /* end-sanitize-i960xl */ | |
9783e04a DM |
1353 | default: |
1354 | return false; | |
1355 | } | |
6f715d66 SC |
1356 | *flagsp = flags; |
1357 | return true; | |
1358 | } | |
9783e04a | 1359 | break; |
0f268757 | 1360 | #endif |
89665c85 SC |
1361 | #ifdef ARMMAGIC |
1362 | case bfd_arch_arm: | |
1363 | *magicp = ARMMAGIC; | |
1364 | return true; | |
1365 | #endif | |
20fdc627 | 1366 | #ifdef I386MAGIC |
9783e04a DM |
1367 | case bfd_arch_i386: |
1368 | *magicp = I386MAGIC; | |
c188b0be | 1369 | #ifdef LYNXOS |
9783e04a DM |
1370 | /* Just overwrite the usual value if we're doing Lynx. */ |
1371 | *magicp = LYNXCOFFMAGIC; | |
c188b0be | 1372 | #endif |
9783e04a DM |
1373 | return true; |
1374 | break; | |
20fdc627 | 1375 | #endif |
0f268757 | 1376 | #ifdef MC68MAGIC |
9783e04a | 1377 | case bfd_arch_m68k: |
97eb2f0c | 1378 | #ifdef APOLLOM68KMAGIC |
9783e04a | 1379 | *magicp = APOLLO_COFF_VERSION_NUMBER; |
97eb2f0c | 1380 | #else |
9783e04a | 1381 | *magicp = MC68MAGIC; |
c188b0be DM |
1382 | #endif |
1383 | #ifdef LYNXOS | |
9783e04a DM |
1384 | /* Just overwrite the usual value if we're doing Lynx. */ |
1385 | *magicp = LYNXCOFFMAGIC; | |
97eb2f0c | 1386 | #endif |
9783e04a DM |
1387 | return true; |
1388 | break; | |
0f268757 | 1389 | #endif |
cbdc7909 | 1390 | |
0f268757 | 1391 | #ifdef MC88MAGIC |
3b4f1a5d SC |
1392 | case bfd_arch_m88k: |
1393 | *magicp = MC88OMAGIC; | |
1394 | return true; | |
1395 | break; | |
1396 | #endif | |
1397 | #ifdef H8300MAGIC | |
1398 | case bfd_arch_h8300: | |
9783e04a DM |
1399 | switch (bfd_get_mach (abfd)) |
1400 | { | |
1401 | case bfd_mach_h8300: | |
1402 | *magicp = H8300MAGIC; | |
1403 | return true; | |
1404 | case bfd_mach_h8300h: | |
1405 | *magicp = H8300HMAGIC; | |
1406 | return true; | |
1407 | } | |
3b4f1a5d | 1408 | break; |
0f268757 | 1409 | #endif |
9faacb92 | 1410 | |
f135c692 | 1411 | #ifdef SH_ARCH_MAGIC_BIG |
9783e04a | 1412 | case bfd_arch_sh: |
f135c692 ILT |
1413 | if (abfd->xvec->byteorder_big_p) |
1414 | *magicp = SH_ARCH_MAGIC_BIG; | |
1415 | else | |
1416 | *magicp = SH_ARCH_MAGIC_LITTLE; | |
9faacb92 SC |
1417 | return true; |
1418 | break; | |
1419 | #endif | |
1420 | ||
c188b0be | 1421 | #ifdef SPARCMAGIC |
9783e04a DM |
1422 | case bfd_arch_sparc: |
1423 | *magicp = SPARCMAGIC; | |
c188b0be | 1424 | #ifdef LYNXOS |
9783e04a DM |
1425 | /* Just overwrite the usual value if we're doing Lynx. */ |
1426 | *magicp = LYNXCOFFMAGIC; | |
c188b0be | 1427 | #endif |
9783e04a DM |
1428 | return true; |
1429 | break; | |
c188b0be DM |
1430 | #endif |
1431 | ||
142ce43e SC |
1432 | #ifdef H8500MAGIC |
1433 | case bfd_arch_h8500: | |
1434 | *magicp = H8500MAGIC; | |
1435 | return true; | |
1436 | break; | |
1437 | #endif | |
41f50af0 | 1438 | #ifdef A29K_MAGIC_BIG |
3b4f1a5d SC |
1439 | case bfd_arch_a29k: |
1440 | if (abfd->xvec->byteorder_big_p) | |
9783e04a | 1441 | *magicp = A29K_MAGIC_BIG; |
3b4f1a5d | 1442 | else |
9783e04a | 1443 | *magicp = A29K_MAGIC_LITTLE; |
3b4f1a5d SC |
1444 | return true; |
1445 | break; | |
41f50af0 | 1446 | #endif |
cbdc7909 | 1447 | |
dc999ad9 | 1448 | #ifdef WE32KMAGIC |
9783e04a DM |
1449 | case bfd_arch_we32k: |
1450 | *magicp = WE32KMAGIC; | |
1451 | return true; | |
1452 | break; | |
dc999ad9 ILT |
1453 | #endif |
1454 | ||
cbdc7909 | 1455 | #ifdef U802TOCMAGIC |
9783e04a | 1456 | case bfd_arch_rs6000: |
09a28207 | 1457 | case bfd_arch_powerpc: |
9783e04a DM |
1458 | *magicp = U802TOCMAGIC; |
1459 | return true; | |
1460 | break; | |
cbdc7909 JG |
1461 | #endif |
1462 | ||
9783e04a DM |
1463 | default: /* Unknown architecture */ |
1464 | /* return false; -- fall through to "return false" below, to avoid | |
cbdc7909 | 1465 | "statement never reached" errors on the one below. */ |
9783e04a DM |
1466 | break; |
1467 | } | |
cbdc7909 | 1468 | |
6f715d66 SC |
1469 | return false; |
1470 | } | |
0f268757 SC |
1471 | |
1472 | ||
9783e04a | 1473 | static boolean |
57a1867e DM |
1474 | coff_set_arch_mach (abfd, arch, machine) |
1475 | bfd * abfd; | |
1476 | enum bfd_architecture arch; | |
1477 | unsigned long machine; | |
6f715d66 | 1478 | { |
9783e04a DM |
1479 | unsigned dummy1; |
1480 | unsigned short dummy2; | |
c16313f0 ILT |
1481 | |
1482 | if (! bfd_default_set_arch_mach (abfd, arch, machine)) | |
1483 | return false; | |
0d740984 SC |
1484 | |
1485 | if (arch != bfd_arch_unknown && | |
9783e04a | 1486 | coff_set_flags (abfd, &dummy1, &dummy2) != true) |
0d740984 | 1487 | return false; /* We can't represent this type */ |
c16313f0 | 1488 | |
0d740984 SC |
1489 | return true; /* We're easy ... */ |
1490 | } | |
0f268757 SC |
1491 | |
1492 | ||
1493 | /* Calculate the file position for each section. */ | |
1494 | ||
cbdc7909 | 1495 | static void |
57a1867e DM |
1496 | coff_compute_section_file_positions (abfd) |
1497 | bfd * abfd; | |
6f715d66 | 1498 | { |
9783e04a DM |
1499 | asection *current; |
1500 | asection *previous = (asection *) NULL; | |
1501 | file_ptr sofar = FILHSZ; | |
55c95b04 | 1502 | #ifndef I960 |
9783e04a | 1503 | file_ptr old_sofar; |
55c95b04 | 1504 | #endif |
69645d10 ILT |
1505 | unsigned int count; |
1506 | ||
9783e04a DM |
1507 | if (bfd_get_start_address (abfd)) |
1508 | { | |
1509 | /* A start address may have been added to the original file. In this | |
e98e6ec1 | 1510 | case it will need an optional header to record it. */ |
9783e04a DM |
1511 | abfd->flags |= EXEC_P; |
1512 | } | |
85e0c721 | 1513 | |
e98e6ec1 | 1514 | if (abfd->flags & EXEC_P) |
9783e04a | 1515 | sofar += AOUTSZ; |
cbdc7909 | 1516 | |
e98e6ec1 | 1517 | sofar += abfd->section_count * SCNHSZ; |
69645d10 | 1518 | for (current = abfd->sections, count = 1; |
9783e04a | 1519 | current != (asection *) NULL; |
69645d10 | 1520 | current = current->next, ++count) |
9783e04a | 1521 | { |
69645d10 | 1522 | current->target_index = count; |
cbdc7909 | 1523 | |
e98e6ec1 SC |
1524 | /* Only deal with sections which have contents */ |
1525 | if (!(current->flags & SEC_HAS_CONTENTS)) | |
9783e04a | 1526 | continue; |
cbdc7909 | 1527 | |
89665c85 SC |
1528 | #ifdef COFF_WITH_PE |
1529 | /* Do not include the .junk section. This is where we collect section | |
1530 | data which we don't need. This is mainly the MS .debug$ data which | |
1531 | stores codeview debug data. */ | |
1532 | if (strcmp (current->name, ".junk") == 0) | |
1533 | { | |
1534 | continue; | |
1535 | } | |
1536 | #endif | |
1537 | ||
e98e6ec1 SC |
1538 | /* Align the sections in the file to the same boundary on |
1539 | which they are aligned in virtual memory. I960 doesn't | |
1540 | do this (FIXME) so we can stay in sync with Intel. 960 | |
1541 | doesn't yet page from files... */ | |
0f268757 | 1542 | #ifndef I960 |
9783e04a DM |
1543 | { |
1544 | /* make sure this section is aligned on the right boundary - by | |
e98e6ec1 SC |
1545 | padding the previous section up if necessary */ |
1546 | ||
9783e04a DM |
1547 | old_sofar = sofar; |
1548 | sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); | |
1549 | if (previous != (asection *) NULL) | |
1550 | { | |
1551 | previous->_raw_size += sofar - old_sofar; | |
1552 | } | |
1553 | } | |
85e0c721 | 1554 | |
0f268757 | 1555 | #endif |
b5b056fc KR |
1556 | |
1557 | #ifdef COFF_PAGE_SIZE | |
1558 | /* In demand paged files the low order bits of the file offset | |
1559 | must match the low order bits of the virtual address. */ | |
e8fbe6d9 ILT |
1560 | if ((abfd->flags & D_PAGED) != 0 |
1561 | && (current->flags & SEC_ALLOC) != 0) | |
b5b056fc KR |
1562 | sofar += (current->vma - sofar) % COFF_PAGE_SIZE; |
1563 | #endif | |
cbdc7909 | 1564 | |
e98e6ec1 | 1565 | current->filepos = sofar; |
85e0c721 | 1566 | |
5e167886 KR |
1567 | sofar += current->_raw_size; |
1568 | #ifndef I960 | |
e98e6ec1 | 1569 | /* make sure that this section is of the right size too */ |
9783e04a DM |
1570 | old_sofar = sofar; |
1571 | sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); | |
1572 | current->_raw_size += sofar - old_sofar; | |
5e167886 | 1573 | #endif |
85e0c721 | 1574 | |
35d835c4 JK |
1575 | #ifdef _LIB |
1576 | /* Force .lib sections to start at zero. The vma is then | |
1577 | incremented in coff_set_section_contents. This is right for | |
1578 | SVR3.2. */ | |
1579 | if (strcmp (current->name, _LIB) == 0) | |
1580 | bfd_set_section_vma (abfd, current, 0); | |
1581 | #endif | |
1582 | ||
e98e6ec1 | 1583 | previous = current; |
85e0c721 | 1584 | } |
89665c85 SC |
1585 | #ifdef COFF_WITH_PE |
1586 | /* Normally, the starting location for the symbol table will be at the end | |
1587 | of the last section. However, when dealing with NT, the last section | |
1588 | must be as long as its size rounded up to the next page (0x1000). */ | |
1589 | sofar = ((sofar + NT_FILE_ALIGNMENT - 1) / | |
1590 | NT_FILE_ALIGNMENT) * NT_FILE_ALIGNMENT; | |
1591 | #endif | |
1592 | ||
9783e04a | 1593 | obj_relocbase (abfd) = sofar; |
69645d10 | 1594 | abfd->output_has_begun = true; |
89665c85 | 1595 | |
6f715d66 | 1596 | } |
0f268757 | 1597 | |
9783e04a DM |
1598 | #ifndef RS6000COFF_C |
1599 | ||
8070f29d KR |
1600 | /* If .file, .text, .data, .bss symbols are missing, add them. */ |
1601 | /* @@ Should we only be adding missing symbols, or overriding the aux | |
1602 | values for existing section symbols? */ | |
9783e04a | 1603 | static boolean |
8070f29d KR |
1604 | coff_add_missing_symbols (abfd) |
1605 | bfd *abfd; | |
1606 | { | |
1607 | unsigned int nsyms = bfd_get_symcount (abfd); | |
1608 | asymbol **sympp = abfd->outsymbols; | |
1609 | asymbol **sympp2; | |
1610 | unsigned int i; | |
1611 | int need_text = 1, need_data = 1, need_bss = 1, need_file = 1; | |
0f268757 | 1612 | |
8070f29d KR |
1613 | for (i = 0; i < nsyms; i++) |
1614 | { | |
1615 | coff_symbol_type *csym = coff_symbol_from (abfd, sympp[i]); | |
1616 | CONST char *name; | |
9783e04a | 1617 | if (csym) |
8070f29d | 1618 | { |
9783e04a DM |
1619 | /* only do this if there is a coff representation of the input |
1620 | symbol */ | |
1621 | if (csym->native && csym->native->u.syment.n_sclass == C_FILE) | |
1622 | { | |
1623 | need_file = 0; | |
1624 | continue; | |
1625 | } | |
1626 | name = csym->symbol.name; | |
1627 | if (!name) | |
1628 | continue; | |
1629 | if (!strcmp (name, _TEXT)) | |
1630 | need_text = 0; | |
97eb2f0c | 1631 | #ifdef APOLLO_M68 |
9783e04a DM |
1632 | else if (!strcmp (name, ".wtext")) |
1633 | need_text = 0; | |
97eb2f0c | 1634 | #endif |
9783e04a DM |
1635 | else if (!strcmp (name, _DATA)) |
1636 | need_data = 0; | |
1637 | else if (!strcmp (name, _BSS)) | |
1638 | need_bss = 0; | |
1639 | } | |
8070f29d KR |
1640 | } |
1641 | /* Now i == bfd_get_symcount (abfd). */ | |
1642 | /* @@ For now, don't deal with .file symbol. */ | |
1643 | need_file = 0; | |
1644 | ||
1645 | if (!need_text && !need_data && !need_bss && !need_file) | |
9783e04a | 1646 | return true; |
8070f29d | 1647 | nsyms += need_text + need_data + need_bss + need_file; |
9783e04a DM |
1648 | sympp2 = (asymbol **) bfd_alloc_by_size_t (abfd, nsyms * sizeof (asymbol *)); |
1649 | if (!sympp2) | |
1650 | { | |
57a1867e | 1651 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
1652 | return false; |
1653 | } | |
8070f29d KR |
1654 | memcpy (sympp2, sympp, i * sizeof (asymbol *)); |
1655 | if (need_file) | |
1656 | { | |
1657 | /* @@ Generate fake .file symbol, in sympp2[i], and increment i. */ | |
1658 | abort (); | |
1659 | } | |
1660 | if (need_text) | |
1661 | sympp2[i++] = coff_section_symbol (abfd, _TEXT); | |
1662 | if (need_data) | |
1663 | sympp2[i++] = coff_section_symbol (abfd, _DATA); | |
1664 | if (need_bss) | |
1665 | sympp2[i++] = coff_section_symbol (abfd, _BSS); | |
9465d03e | 1666 | BFD_ASSERT (i == nsyms); |
8070f29d | 1667 | bfd_set_symtab (abfd, sympp2, nsyms); |
9783e04a | 1668 | return true; |
8070f29d | 1669 | } |
0f268757 | 1670 | |
9783e04a DM |
1671 | #endif /* ! defined (RS6000COFF_C) */ |
1672 | ||
89665c85 | 1673 | #ifdef COFF_WITH_PE |
e9614321 | 1674 | static void add_data_entry (abfd, aout, idx, name, base) |
89665c85 SC |
1675 | bfd *abfd; |
1676 | struct internal_aouthdr *aout; | |
1677 | int idx; | |
1678 | char *name; | |
e9614321 | 1679 | bfd_vma base; |
89665c85 SC |
1680 | { |
1681 | asection *sec = bfd_get_section_by_name (abfd, name); | |
1682 | ||
1683 | /* add import directory information if it exists */ | |
1684 | if (sec != NULL) | |
1685 | { | |
e9614321 SC |
1686 | aout->pe->DataDirectory[idx].VirtualAddress = sec->lma - base; |
1687 | aout->pe->DataDirectory[idx].Size = sec->_raw_size; | |
89665c85 | 1688 | } |
e9614321 SC |
1689 | } |
1690 | ||
1691 | ||
1692 | static void | |
1693 | fill_pe_header_info (abfd, internal_f, internal_a, end_of_image) | |
1694 | bfd *abfd; | |
1695 | struct internal_filehdr *internal_f; | |
1696 | struct internal_aouthdr *internal_a; | |
1697 | bfd_vma end_of_image; | |
1698 | { | |
1699 | /* assign other filehdr fields for DOS header and NT signature */ | |
1700 | ||
1701 | bfd_link_pe_info *pe_info = coff_data (abfd)->link_info->pe_info; | |
1702 | ||
1703 | internal_f->f_timdat = time (0); | |
1704 | ||
1705 | if (pe_value (&pe_info->dll, 0)) | |
1706 | internal_f->f_flags |= F_DLL ; | |
1707 | ||
1708 | ||
1709 | if (bfd_get_section_by_name (abfd, ".reloc")) | |
1710 | internal_f->f_flags &= ~F_RELFLG; | |
1711 | ||
1712 | ||
1713 | memset (internal_f->pe, 0, sizeof (struct internal_extra_pe_filehdr)); | |
1714 | memset (internal_a->pe, 0, sizeof (struct internal_extra_pe_aouthdr)); | |
1715 | ||
1716 | ||
1717 | internal_a->pe->ImageBase = pe_value (&pe_info->image_base, IMAGE_BASE); | |
1718 | ||
1719 | if (internal_a->tsize) | |
1720 | internal_a->text_start -= internal_a->pe->ImageBase; | |
1721 | if (internal_a->dsize) | |
1722 | internal_a->data_start -= internal_a->pe->ImageBase; | |
1723 | if (internal_a->entry) | |
1724 | internal_a->entry -= internal_a->pe->ImageBase; | |
1725 | ||
1726 | ||
1727 | internal_f->pe->e_magic = DOSMAGIC; | |
1728 | internal_f->pe->e_cblp = 0x90; | |
1729 | internal_f->pe->e_cp = 0x3; | |
1730 | internal_f->pe->e_crlc = 0x0; | |
1731 | internal_f->pe->e_cparhdr = 0x4; | |
1732 | internal_f->pe->e_minalloc = 0x0; | |
1733 | internal_f->pe->e_maxalloc = 0xffff; | |
1734 | internal_f->pe->e_ss = 0x0; | |
1735 | internal_f->pe->e_sp = 0xb8; | |
1736 | internal_f->pe->e_csum = 0x0; | |
1737 | internal_f->pe->e_ip = 0x0; | |
1738 | internal_f->pe->e_cs = 0x0; | |
1739 | internal_f->pe->e_lfarlc = 0x40; | |
1740 | internal_f->pe->e_ovno = 0x0; | |
1741 | { | |
1742 | int idx; | |
1743 | for (idx=0; idx < 4; idx++) | |
1744 | internal_f->pe->e_res[idx] = 0x0; | |
1745 | } | |
1746 | internal_f->pe->e_oemid = 0x0; | |
1747 | internal_f->pe->e_oeminfo = 0x0; | |
1748 | { | |
1749 | int idx; | |
1750 | for (idx=0; idx < 10; idx++) | |
1751 | internal_f->pe->e_res2[idx] = 0x0; | |
1752 | } | |
1753 | internal_f->pe->e_lfanew = 0x80; | |
1754 | ||
1755 | /* this next collection of data are mostly just characters. It appears | |
1756 | to be constant within the headers put on NT exes */ | |
1757 | internal_f->pe->dos_message[0] = 0x0eba1f0e; | |
1758 | internal_f->pe->dos_message[1] = 0xcd09b400; | |
1759 | internal_f->pe->dos_message[2] = 0x4c01b821; | |
1760 | internal_f->pe->dos_message[3] = 0x685421cd; | |
1761 | internal_f->pe->dos_message[4] = 0x70207369; | |
1762 | internal_f->pe->dos_message[5] = 0x72676f72; | |
1763 | internal_f->pe->dos_message[6] = 0x63206d61; | |
1764 | internal_f->pe->dos_message[7] = 0x6f6e6e61; | |
1765 | internal_f->pe->dos_message[8] = 0x65622074; | |
1766 | internal_f->pe->dos_message[9] = 0x6e757220; | |
1767 | internal_f->pe->dos_message[10] = 0x206e6920; | |
1768 | internal_f->pe->dos_message[11] = 0x20534f44; | |
1769 | internal_f->pe->dos_message[12] = 0x65646f6d; | |
1770 | internal_f->pe->dos_message[13] = 0x0a0d0d2e; | |
1771 | internal_f->pe->dos_message[14] = 0x24; | |
1772 | internal_f->pe->dos_message[15] = 0x0; | |
1773 | internal_f->pe->nt_signature = NT_SIGNATURE; | |
1774 | ||
1775 | ||
1776 | /* write all of the other optional header data */ | |
1777 | ||
1778 | ||
1779 | ||
1780 | internal_a->pe->SectionAlignment = pe_value (&pe_info->section_alignment, | |
1781 | NT_SECTION_ALIGNMENT); | |
1782 | ||
1783 | internal_a->pe->FileAlignment = pe_value (&pe_info->file_alignment, | |
1784 | NT_FILE_ALIGNMENT); | |
1785 | ||
1786 | internal_a->pe->MajorOperatingSystemVersion = | |
1787 | pe_value (&pe_info->major_os_version, 1); | |
1788 | ||
1789 | internal_a->pe->MinorOperatingSystemVersion = | |
1790 | pe_value (&pe_info->minor_os_version, 0); | |
1791 | ||
1792 | internal_a->pe->MajorImageVersion = | |
1793 | pe_value (&pe_info->major_image_version, 1); | |
1794 | ||
1795 | internal_a->pe->MinorImageVersion = | |
1796 | pe_value (&pe_info->minor_image_version, 0); | |
1797 | ||
1798 | ||
1799 | internal_a->pe->MajorSubsystemVersion = | |
1800 | pe_value (&pe_info->major_subsystem_version, 3); | |
1801 | ||
1802 | ||
1803 | internal_a->pe->MinorSubsystemVersion = | |
1804 | pe_value (&pe_info->minor_subsystem_version, 10); | |
1805 | ||
1806 | ||
1807 | ||
1808 | internal_a->pe->Subsystem = | |
1809 | pe_value (&pe_info->subsystem, BFD_PE_CONSOLE); | |
1810 | ||
1811 | ||
1812 | ||
1813 | ||
1814 | /* Virtual start address, take virtual start address of last section, | |
1815 | add its physical size and round up the next page (NT_SECTION_ALIGNMENT). | |
1816 | An assumption has been made that the sections stored in the abfd | |
1817 | structure are in order and that I have successfully saved the last | |
1818 | section's address and size. */ | |
1819 | ||
1820 | internal_a->pe->SizeOfImage = | |
1821 | (end_of_image - internal_a->pe->ImageBase | |
1822 | + internal_a->pe->SectionAlignment - 1) | |
1823 | & ~ (internal_a->pe->SectionAlignment-1); | |
1824 | ||
1825 | /* Start of .text section will do here since it is the first section after | |
1826 | the headers. Note that NT_IMAGE_BASE has already been removed above */ | |
1827 | internal_a->pe->SizeOfHeaders = internal_a->text_start; | |
1828 | internal_a->pe->CheckSum = 0; | |
1829 | internal_a->pe->DllCharacteristics = 0; | |
1830 | ||
1831 | internal_a->pe->SizeOfStackReserve = pe_value (&pe_info->stack_reserve, | |
1832 | NT_DEF_RESERVE); | |
1833 | internal_a->pe->SizeOfStackCommit = pe_value (&pe_info->stack_commit, | |
1834 | NT_DEF_COMMIT); | |
1835 | ||
1836 | internal_a->pe->SizeOfHeapReserve = pe_value (&pe_info->heap_reserve, | |
1837 | NT_DEF_RESERVE); | |
1838 | internal_a->pe->SizeOfHeapCommit = pe_value (&pe_info->heap_commit, | |
1839 | NT_DEF_COMMIT); | |
1840 | ||
1841 | internal_a->pe->LoaderFlags = 0; | |
1842 | internal_a->pe->NumberOfRvaAndSizes = IMAGE_NUMBEROF_DIRECTORY_ENTRIES; /* 0x10 */ | |
1843 | ||
1844 | /* first null out all data directory entries .. */ | |
1845 | memset (internal_a->pe->DataDirectory, sizeof (internal_a->pe->DataDirectory), 0); | |
1846 | ||
1847 | add_data_entry (abfd, internal_a, 0, ".edata", internal_a->pe->ImageBase); | |
1848 | add_data_entry (abfd, internal_a, 1, ".idata", internal_a->pe->ImageBase); | |
1849 | add_data_entry (abfd, internal_a, 2, ".rsrc" ,internal_a->pe->ImageBase); | |
1850 | add_data_entry (abfd, internal_a, 5, ".reloc", internal_a->pe->ImageBase); | |
1851 | ||
1852 | ||
1853 | ||
89665c85 SC |
1854 | } |
1855 | #endif | |
1856 | ||
0f268757 SC |
1857 | /* SUPPRESS 558 */ |
1858 | /* SUPPRESS 529 */ | |
9783e04a | 1859 | static boolean |
57a1867e DM |
1860 | coff_write_object_contents (abfd) |
1861 | bfd * abfd; | |
e98e6ec1 | 1862 | { |
9783e04a | 1863 | asection *current; |
9783e04a DM |
1864 | boolean hasrelocs = false; |
1865 | boolean haslinno = false; | |
1866 | file_ptr reloc_base; | |
1867 | file_ptr lineno_base; | |
1868 | file_ptr sym_base; | |
9783e04a DM |
1869 | unsigned long reloc_size = 0; |
1870 | unsigned long lnno_size = 0; | |
1871 | asection *text_sec = NULL; | |
1872 | asection *data_sec = NULL; | |
1873 | asection *bss_sec = NULL; | |
89665c85 | 1874 | bfd_vma end_of_image = 0; |
cbdc7909 | 1875 | |
e98e6ec1 SC |
1876 | struct internal_filehdr internal_f; |
1877 | struct internal_aouthdr internal_a; | |
cbdc7909 | 1878 | |
e9614321 SC |
1879 | #ifdef COFF_IMAGE_WITH_PE |
1880 | struct internal_extra_pe_aouthdr extra_a; | |
1881 | struct internal_extra_pe_filehdr extra_f; | |
e9614321 | 1882 | bfd_link_pe_info defs; |
9162a94e SC |
1883 | struct bfd_link_info dummy_info; |
1884 | struct bfd_link_info *info ; | |
1885 | struct bfd_link_pe_info *pe_info; | |
1886 | ||
1887 | if (coff_data (abfd)->link_info) | |
1888 | info =coff_data (abfd)->link_info; | |
1889 | else | |
1890 | { | |
1891 | coff_data (abfd)->link_info = info = &dummy_info; | |
1892 | info->pe_info = 0; | |
1893 | } | |
1894 | pe_info = info->pe_info; | |
1895 | ||
e9614321 SC |
1896 | if (!pe_info) |
1897 | { | |
1898 | /* Just use sensible defaults */ | |
1899 | memset (&defs, 0, sizeof (defs)); | |
1900 | coff_data (abfd)->link_info->pe_info = &defs; | |
1901 | } | |
e9614321 SC |
1902 | #endif |
1903 | ||
57a1867e | 1904 | bfd_set_error (bfd_error_system_call); |
6590a8c9 | 1905 | |
9783e04a | 1906 | if (abfd->output_has_begun == false) |
69645d10 | 1907 | coff_compute_section_file_positions (abfd); |
cbdc7909 | 1908 | |
9783e04a | 1909 | reloc_base = obj_relocbase (abfd); |
cbdc7909 | 1910 | |
0f268757 SC |
1911 | /* Make a pass through the symbol table to count line number entries and |
1912 | put them into the correct asections */ | |
cbdc7909 | 1913 | |
9783e04a | 1914 | lnno_size = coff_count_linenumbers (abfd) * LINESZ; |
cbdc7909 | 1915 | |
0f268757 | 1916 | /* Work out the size of the reloc and linno areas */ |
cbdc7909 | 1917 | |
e98e6ec1 | 1918 | for (current = abfd->sections; current != NULL; current = |
9783e04a | 1919 | current->next) |
69645d10 | 1920 | reloc_size += current->reloc_count * RELSZ; |
cbdc7909 | 1921 | |
0f268757 SC |
1922 | lineno_base = reloc_base + reloc_size; |
1923 | sym_base = lineno_base + lnno_size; | |
cbdc7909 | 1924 | |
0f268757 | 1925 | /* Indicate in each section->line_filepos its actual file address */ |
e98e6ec1 | 1926 | for (current = abfd->sections; current != NULL; current = |
9783e04a | 1927 | current->next) |
e98e6ec1 | 1928 | { |
69645d10 | 1929 | if (current->lineno_count) |
9783e04a | 1930 | { |
69645d10 ILT |
1931 | current->line_filepos = lineno_base; |
1932 | current->moving_line_filepos = lineno_base; | |
1933 | lineno_base += current->lineno_count * LINESZ; | |
1934 | } | |
1935 | else | |
1936 | { | |
1937 | current->line_filepos = 0; | |
1938 | } | |
1939 | if (current->reloc_count) | |
1940 | { | |
1941 | current->rel_filepos = reloc_base; | |
1942 | reloc_base += current->reloc_count * RELSZ; | |
1943 | } | |
1944 | else | |
1945 | { | |
1946 | current->rel_filepos = 0; | |
e98e6ec1 | 1947 | } |
0f268757 | 1948 | } |
9783e04a | 1949 | |
e98e6ec1 SC |
1950 | /* Write section headers to the file. */ |
1951 | internal_f.f_nscns = 0; | |
89665c85 SC |
1952 | |
1953 | #if 0 | |
791a3db4 ILT |
1954 | if (bfd_seek (abfd, |
1955 | (file_ptr) ((abfd->flags & EXEC_P) ? | |
89665c85 SC |
1956 | (EXTRA_NT_HDRSZ + FILHSZ + AOUTSZ) : |
1957 | (EXTRA_NT_HDRSZ + FILHSZ)), | |
791a3db4 ILT |
1958 | SEEK_SET) |
1959 | != 0) | |
89665c85 SC |
1960 | #else |
1961 | if (bfd_seek (abfd, | |
1962 | (file_ptr) ((abfd->flags & EXEC_P) ? | |
1963 | (FILHSZ + AOUTSZ) : FILHSZ), | |
1964 | SEEK_SET) | |
1965 | != 0) | |
1966 | #endif | |
1967 | return false; | |
cbdc7909 | 1968 | |
9783e04a | 1969 | { |
9783e04a DM |
1970 | for (current = abfd->sections; |
1971 | current != NULL; | |
1972 | current = current->next) | |
e98e6ec1 | 1973 | { |
9783e04a | 1974 | struct internal_scnhdr section; |
69645d10 | 1975 | |
89665c85 SC |
1976 | #ifdef COFF_WITH_PE |
1977 | /* Do not include the .junk section. This is where we collect section | |
1978 | data which we don't need. This is mainly the MS .debug$ data which | |
1979 | stores codeview debug data. */ | |
1980 | if (strcmp (current->name, ".junk") == 0) | |
1981 | { | |
1982 | continue; | |
1983 | } | |
1984 | #endif | |
69645d10 ILT |
1985 | internal_f.f_nscns++; |
1986 | strncpy (&(section.s_name[0]), current->name, 8); | |
b26059aa | 1987 | #ifdef _LIB |
69645d10 | 1988 | /* Always set s_vaddr of .lib to 0. This is right for SVR3.2 |
b26059aa | 1989 | Ian Taylor <ian@cygnus.com>. */ |
69645d10 ILT |
1990 | if (strcmp (current->name, _LIB) == 0) |
1991 | section.s_vaddr = 0; | |
1992 | else | |
1993 | #endif | |
1994 | section.s_vaddr = current->lma; | |
1995 | section.s_paddr = current->lma; | |
1996 | section.s_size = current->_raw_size; | |
89665c85 SC |
1997 | |
1998 | /* Remember the address of the end of the last section */ | |
1999 | ||
2000 | if (current->lma + current->_raw_size > end_of_image) | |
2001 | end_of_image = current->lma + current->_raw_size ; | |
2002 | ||
69645d10 ILT |
2003 | /* |
2004 | If this section has no size or is unloadable then the scnptr | |
2005 | will be 0 too | |
2006 | */ | |
2007 | if (current->_raw_size == 0 || | |
2008 | (current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
2009 | { | |
2010 | section.s_scnptr = 0; | |
2011 | } | |
2012 | else | |
2013 | { | |
2014 | section.s_scnptr = current->filepos; | |
2015 | } | |
2016 | section.s_relptr = current->rel_filepos; | |
2017 | section.s_lnnoptr = current->line_filepos; | |
2018 | section.s_nreloc = current->reloc_count; | |
2019 | section.s_nlnno = current->lineno_count; | |
2020 | if (current->reloc_count != 0) | |
2021 | hasrelocs = true; | |
2022 | if (current->lineno_count != 0) | |
2023 | haslinno = true; | |
2024 | ||
2025 | section.s_flags = sec_to_styp_flags (current->name, current->flags); | |
2026 | ||
2027 | if (!strcmp (current->name, _TEXT)) | |
2028 | { | |
2029 | text_sec = current; | |
2030 | } | |
2031 | else if (!strcmp (current->name, _DATA)) | |
2032 | { | |
2033 | data_sec = current; | |
b26059aa | 2034 | #ifdef TWO_DATA_SECS |
69645d10 ILT |
2035 | } |
2036 | else if (!strcmp (current->name, ".data2")) | |
2037 | { | |
2038 | data_sec = current; | |
b26059aa | 2039 | #endif /* TWO_DATA_SECS */ |
69645d10 ILT |
2040 | } |
2041 | else if (!strcmp (current->name, _BSS)) | |
2042 | { | |
2043 | bss_sec = current; | |
2044 | } | |
cbdc7909 | 2045 | |
0f268757 | 2046 | #ifdef I960 |
69645d10 ILT |
2047 | section.s_align = (current->alignment_power |
2048 | ? 1 << current->alignment_power | |
2049 | : 0); | |
0f268757 SC |
2050 | |
2051 | #endif | |
69645d10 ILT |
2052 | { |
2053 | SCNHDR buff; | |
e98e6ec1 | 2054 | |
89665c85 SC |
2055 | #ifdef WINDOWS_NT |
2056 | /* suppress output of the sections if they are null. ld includes | |
2057 | the bss and data sections even if there is no size assigned | |
2058 | to them. NT loader doesn't like it if these section headers are | |
2059 | included if the sections themselves are not needed */ | |
2060 | if (section.s_size == 0) | |
2061 | internal_f.f_nscns--; | |
2062 | else | |
2063 | { | |
2064 | coff_swap_scnhdr_out (abfd, §ion, &buff); | |
2065 | if (bfd_write ((PTR) (&buff), 1, SCNHSZ, abfd) != SCNHSZ) | |
2066 | return false; | |
2067 | } | |
2068 | #else | |
2069 | if (coff_swap_scnhdr_out (abfd, §ion, &buff) == 0 | |
2070 | || bfd_write ((PTR) (&buff), 1, SCNHSZ, abfd) != SCNHSZ) | |
69645d10 | 2071 | return false; |
89665c85 | 2072 | #endif |
0f268757 | 2073 | |
69645d10 | 2074 | } |
0f268757 | 2075 | } |
9783e04a | 2076 | } |
e98e6ec1 | 2077 | |
0f268757 SC |
2078 | |
2079 | /* OK, now set up the filehdr... */ | |
e98e6ec1 SC |
2080 | |
2081 | /* Don't include the internal abs section in the section count */ | |
2082 | ||
0f268757 | 2083 | /* |
89665c85 SC |
2084 | We will NOT put a fucking timestamp in the header here. Every time you |
2085 | put it back, I will come in and take it out again. I'm sorry. This | |
2086 | field does not belong here. We fill it with a 0 so it compares the | |
2087 | same but is not a reasonable time. -- gnu@cygnus.com | |
2088 | */ | |
0f268757 | 2089 | |
0f268757 SC |
2090 | internal_f.f_flags = 0; |
2091 | ||
2092 | if (abfd->flags & EXEC_P) | |
9783e04a | 2093 | internal_f.f_opthdr = AOUTSZ; |
0f268757 | 2094 | else |
9783e04a | 2095 | internal_f.f_opthdr = 0; |
0f268757 SC |
2096 | |
2097 | if (!hasrelocs) | |
9783e04a | 2098 | internal_f.f_flags |= F_RELFLG; |
0f268757 | 2099 | if (!haslinno) |
9783e04a | 2100 | internal_f.f_flags |= F_LNNO; |
0f268757 | 2101 | if (abfd->flags & EXEC_P) |
9783e04a | 2102 | internal_f.f_flags |= F_EXEC; |
a0f3f080 | 2103 | |
0f268757 | 2104 | if (!abfd->xvec->byteorder_big_p) |
9783e04a DM |
2105 | internal_f.f_flags |= F_AR32WR; |
2106 | else | |
2107 | internal_f.f_flags |= F_AR32W; | |
a0f3f080 | 2108 | |
0f268757 | 2109 | /* |
89665c85 SC |
2110 | FIXME, should do something about the other byte orders and |
2111 | architectures. | |
2112 | */ | |
0f268757 | 2113 | |
ab31ae53 KR |
2114 | memset (&internal_a, 0, sizeof internal_a); |
2115 | ||
0f268757 SC |
2116 | /* Set up architecture-dependent stuff */ |
2117 | ||
9783e04a DM |
2118 | { |
2119 | unsigned int magic = 0; | |
2120 | unsigned short flags = 0; | |
2121 | coff_set_flags (abfd, &magic, &flags); | |
2122 | internal_f.f_magic = magic; | |
2123 | internal_f.f_flags |= flags; | |
2124 | /* ...and the "opt"hdr... */ | |
0f268757 | 2125 | |
cbdc7909 | 2126 | #ifdef A29K |
9783e04a DM |
2127 | #ifdef ULTRA3 /* NYU's machine */ |
2128 | /* FIXME: This is a bogus check. I really want to see if there | |
89665c85 SC |
2129 | * is a .shbss or a .shdata section, if so then set the magic |
2130 | * number to indicate a shared data executable. | |
2131 | */ | |
9783e04a | 2132 | if (internal_f.f_nscns >= 7) |
89665c85 | 2133 | internal_a.magic = SHMAGIC; /* Shared magic */ |
9783e04a DM |
2134 | else |
2135 | #endif /* ULTRA3 */ | |
89665c85 | 2136 | internal_a.magic = NMAGIC; /* Assume separate i/d */ |
41f50af0 | 2137 | #define __A_MAGIC_SET__ |
9783e04a | 2138 | #endif /* A29K */ |
0f268757 | 2139 | #ifdef I960 |
9783e04a | 2140 | internal_a.magic = (magic == I960ROMAGIC ? NMAGIC : OMAGIC); |
41f50af0 | 2141 | #define __A_MAGIC_SET__ |
9783e04a | 2142 | #endif /* I960 */ |
0f268757 | 2143 | #if M88 |
41f50af0 | 2144 | #define __A_MAGIC_SET__ |
9783e04a DM |
2145 | internal_a.magic = PAGEMAGICBCS; |
2146 | #endif /* M88 */ | |
41f50af0 | 2147 | |
97eb2f0c KR |
2148 | #if APOLLO_M68 |
2149 | #define __A_MAGIC_SET__ | |
9783e04a | 2150 | internal_a.magic = APOLLO_COFF_VERSION_NUMBER; |
97eb2f0c KR |
2151 | #endif |
2152 | ||
e8fbe6d9 | 2153 | #if defined(M68) || defined(WE32K) || defined(M68K) |
41f50af0 | 2154 | #define __A_MAGIC_SET__ |
e8fbe6d9 ILT |
2155 | #if defined(LYNXOS) |
2156 | internal_a.magic = LYNXCOFFMAGIC; | |
89665c85 SC |
2157 | #endif /* LYNXOS */ |
2158 | #endif /* M68 || WE32K || M68K */ | |
8ad2a31d | 2159 | |
89665c85 SC |
2160 | #if defined(ARM) |
2161 | #define __A_MAGIC_SET__ | |
2162 | internal_a.magic = ZMAGIC; | |
2163 | #endif | |
e8fbe6d9 | 2164 | #if defined(I386) |
9783e04a | 2165 | #define __A_MAGIC_SET__ |
e8fbe6d9 ILT |
2166 | #if defined(LYNXOS) |
2167 | internal_a.magic = LYNXCOFFMAGIC; | |
89665c85 | 2168 | #else /* LYNXOS */ |
9783e04a | 2169 | internal_a.magic = ZMAGIC; |
e8fbe6d9 | 2170 | #endif /* LYNXOS */ |
8ad2a31d | 2171 | #endif /* I386 */ |
41f50af0 | 2172 | |
e8fbe6d9 ILT |
2173 | #if defined(SPARC) |
2174 | #define __A_MAGIC_SET__ | |
2175 | #if defined(LYNXOS) | |
89665c85 SC |
2176 | internal_a.magic = LYNXCOFFMAGIC; |
2177 | #endif /* LYNXOS */ | |
2178 | #endif /* SPARC */ | |
e8fbe6d9 | 2179 | |
cbdc7909 JG |
2180 | #if RS6000COFF_C |
2181 | #define __A_MAGIC_SET__ | |
9783e04a | 2182 | internal_a.magic = (abfd->flags & D_PAGED) ? RS6K_AOUTHDR_ZMAGIC : |
89665c85 SC |
2183 | (abfd->flags & WP_TEXT) ? RS6K_AOUTHDR_NMAGIC : |
2184 | RS6K_AOUTHDR_OMAGIC; | |
cbdc7909 JG |
2185 | #endif |
2186 | ||
41f50af0 | 2187 | #ifndef __A_MAGIC_SET__ |
9783e04a | 2188 | #include "Your aouthdr magic number is not being set!" |
41f50af0 | 2189 | #else |
9783e04a | 2190 | #undef __A_MAGIC_SET__ |
0f268757 | 2191 | #endif |
9783e04a | 2192 | } |
0f268757 | 2193 | /* Now should write relocs, strings, syms */ |
9783e04a DM |
2194 | obj_sym_filepos (abfd) = sym_base; |
2195 | ||
2196 | if (bfd_get_symcount (abfd) != 0) | |
2197 | { | |
89665c85 | 2198 | int firstundef; |
9783e04a DM |
2199 | #ifndef RS6000COFF_C |
2200 | if (!coff_add_missing_symbols (abfd)) | |
2201 | return false; | |
2202 | #endif | |
89665c85 | 2203 | if (!coff_renumber_symbols (abfd, &firstundef)) |
9783e04a DM |
2204 | return false; |
2205 | coff_mangle_symbols (abfd); | |
bfe8224f ILT |
2206 | if (! coff_write_symbols (abfd)) |
2207 | return false; | |
791a3db4 ILT |
2208 | if (! coff_write_linenumbers (abfd)) |
2209 | return false; | |
89665c85 | 2210 | if (! coff_write_relocs (abfd, firstundef)) |
9783e04a | 2211 | return false; |
e98e6ec1 | 2212 | } |
6ceff8e7 ILT |
2213 | |
2214 | /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF | |
2215 | backend linker, and obj_raw_syment_count is not valid until after | |
2216 | coff_write_symbols is called. */ | |
2217 | if (obj_raw_syment_count (abfd) != 0) | |
2218 | internal_f.f_symptr = sym_base; | |
2219 | else | |
2220 | { | |
2221 | internal_f.f_symptr = 0; | |
2222 | internal_f.f_flags |= F_LSYMS; | |
2223 | } | |
2224 | ||
9783e04a DM |
2225 | if (text_sec) |
2226 | { | |
2227 | internal_a.tsize = bfd_get_section_size_before_reloc (text_sec); | |
e9614321 | 2228 | internal_a.text_start = internal_a.tsize ? text_sec->vma : 0; |
e98e6ec1 | 2229 | } |
9783e04a DM |
2230 | if (data_sec) |
2231 | { | |
2232 | internal_a.dsize = bfd_get_section_size_before_reloc (data_sec); | |
e9614321 | 2233 | internal_a.data_start = internal_a.dsize ? data_sec->vma : 0; |
e98e6ec1 | 2234 | } |
9783e04a DM |
2235 | if (bss_sec) |
2236 | { | |
2237 | internal_a.bsize = bfd_get_section_size_before_reloc (bss_sec); | |
e98e6ec1 | 2238 | } |
0f268757 | 2239 | |
e9614321 | 2240 | internal_a.entry = bfd_get_start_address (abfd); |
69645d10 | 2241 | internal_f.f_nsyms = obj_raw_syment_count (abfd); |
0f268757 | 2242 | |
89665c85 | 2243 | |
89665c85 | 2244 | |
e9614321 | 2245 | #ifdef COFF_IMAGE_WITH_PE |
89665c85 | 2246 | |
e9614321 SC |
2247 | internal_f.pe = & extra_f; |
2248 | internal_a.pe = & extra_a; | |
89665c85 | 2249 | |
e9614321 | 2250 | fill_pe_header_info (abfd, &internal_f, &internal_a, end_of_image); |
89665c85 SC |
2251 | #endif |
2252 | ||
0f268757 | 2253 | /* now write them */ |
9783e04a DM |
2254 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) |
2255 | return false; | |
2256 | { | |
2257 | FILHDR buff; | |
2258 | coff_swap_filehdr_out (abfd, (PTR) & internal_f, (PTR) & buff); | |
791a3db4 ILT |
2259 | if (bfd_write ((PTR) & buff, 1, FILHSZ, abfd) != FILHSZ) |
2260 | return false; | |
9783e04a DM |
2261 | } |
2262 | if (abfd->flags & EXEC_P) | |
2263 | { | |
e98e6ec1 | 2264 | AOUTHDR buff; |
9783e04a | 2265 | coff_swap_aouthdr_out (abfd, (PTR) & internal_a, (PTR) & buff); |
791a3db4 ILT |
2266 | if (bfd_write ((PTR) & buff, 1, AOUTSZ, abfd) != AOUTSZ) |
2267 | return false; | |
e98e6ec1 | 2268 | } |
89665c85 | 2269 | |
0f268757 | 2270 | return true; |
6f715d66 SC |
2271 | } |
2272 | ||
9783e04a | 2273 | static boolean |
57a1867e DM |
2274 | coff_set_section_contents (abfd, section, location, offset, count) |
2275 | bfd * abfd; | |
2276 | sec_ptr section; | |
2277 | PTR location; | |
2278 | file_ptr offset; | |
2279 | bfd_size_type count; | |
0f268757 | 2280 | { |
9783e04a DM |
2281 | if (abfd->output_has_begun == false) /* set by bfd.c handler */ |
2282 | coff_compute_section_file_positions (abfd); | |
cbdc7909 | 2283 | |
075caafd | 2284 | #ifdef _LIB |
9783e04a | 2285 | /* If this is a .lib section, bump the vma address so that it |
075caafd ILT |
2286 | winds up being the number of .lib sections output. This is |
2287 | right for SVR3.2. Shared libraries should probably get more | |
2288 | generic support. Ian Taylor <ian@cygnus.com>. */ | |
9783e04a DM |
2289 | if (strcmp (section->name, _LIB) == 0) |
2290 | ++section->lma; | |
075caafd | 2291 | #endif |
0f268757 | 2292 | |
9783e04a DM |
2293 | /* Don't write out bss sections - one way to do this is to |
2294 | see if the filepos has not been set. */ | |
2295 | if (section->filepos == 0) | |
2296 | return true; | |
55c95b04 | 2297 | |
791a3db4 ILT |
2298 | if (bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET) != 0) |
2299 | return false; | |
7a8b18b6 | 2300 | |
9783e04a DM |
2301 | if (count != 0) |
2302 | { | |
2303 | return (bfd_write (location, 1, count, abfd) == count) ? true : false; | |
075caafd | 2304 | } |
9783e04a | 2305 | return true; |
075caafd ILT |
2306 | } |
2307 | #if 0 | |
9783e04a DM |
2308 | static boolean |
2309 | coff_close_and_cleanup (abfd) | |
2310 | bfd *abfd; | |
0f268757 | 2311 | { |
9783e04a DM |
2312 | if (!bfd_read_p (abfd)) |
2313 | switch (abfd->format) | |
2314 | { | |
2315 | case bfd_archive: | |
2316 | if (!_bfd_write_archive_contents (abfd)) | |
2317 | return false; | |
2318 | break; | |
2319 | case bfd_object: | |
2320 | if (!coff_write_object_contents (abfd)) | |
2321 | return false; | |
2322 | break; | |
2323 | default: | |
57a1867e | 2324 | bfd_set_error (bfd_error_invalid_operation); |
075caafd | 2325 | return false; |
9783e04a | 2326 | } |
075caafd ILT |
2327 | |
2328 | /* We depend on bfd_close to free all the memory on the obstack. */ | |
2329 | /* FIXME if bfd_release is not using obstacks! */ | |
2330 | return true; | |
0f268757 SC |
2331 | } |
2332 | ||
075caafd ILT |
2333 | #endif |
2334 | ||
2335 | static PTR | |
9783e04a DM |
2336 | buy_and_read (abfd, where, seek_direction, size) |
2337 | bfd *abfd; | |
2338 | file_ptr where; | |
2339 | int seek_direction; | |
2340 | size_t size; | |
075caafd | 2341 | { |
9783e04a DM |
2342 | PTR area = (PTR) bfd_alloc (abfd, size); |
2343 | if (!area) | |
2344 | { | |
57a1867e | 2345 | bfd_set_error (bfd_error_no_memory); |
9783e04a | 2346 | return (NULL); |
075caafd | 2347 | } |
791a3db4 ILT |
2348 | if (bfd_seek (abfd, where, seek_direction) != 0 |
2349 | || bfd_read (area, 1, size, abfd) != size) | |
2350 | return (NULL); | |
9783e04a | 2351 | return (area); |
075caafd | 2352 | } /* buy_and_read() */ |
0f268757 | 2353 | |
9fda1a39 | 2354 | /* |
9783e04a | 2355 | SUBSUBSECTION |
c188b0be | 2356 | Reading linenumbers |
9fda1a39 | 2357 | |
9fda1a39 SC |
2358 | Creating the linenumber table is done by reading in the entire |
2359 | coff linenumber table, and creating another table for internal use. | |
6f715d66 | 2360 | |
c188b0be | 2361 | A coff linenumber table is structured so that each function |
9fda1a39 SC |
2362 | is marked as having a line number of 0. Each line within the |
2363 | function is an offset from the first line in the function. The | |
2364 | base of the line number information for the table is stored in | |
9783e04a | 2365 | the symbol associated with the function. |
6f715d66 | 2366 | |
9fda1a39 SC |
2367 | The information is copied from the external to the internal |
2368 | table, and each symbol which marks a function is marked by | |
2369 | pointing its... | |
6f715d66 | 2370 | |
9fda1a39 | 2371 | How does this work ? |
6f715d66 SC |
2372 | |
2373 | */ | |
0f268757 SC |
2374 | |
2375 | static boolean | |
9783e04a | 2376 | coff_slurp_line_table (abfd, asect) |
ab31ae53 KR |
2377 | bfd *abfd; |
2378 | asection *asect; | |
2379 | { | |
9783e04a | 2380 | LINENO *native_lineno; |
ab31ae53 KR |
2381 | alent *lineno_cache; |
2382 | ||
9783e04a | 2383 | BFD_ASSERT (asect->lineno == (alent *) NULL); |
ab31ae53 | 2384 | |
9783e04a DM |
2385 | native_lineno = (LINENO *) buy_and_read (abfd, |
2386 | asect->line_filepos, | |
2387 | SEEK_SET, | |
2388 | (size_t) (LINESZ * | |
2389 | asect->lineno_count)); | |
ab31ae53 | 2390 | lineno_cache = |
9783e04a | 2391 | (alent *) bfd_alloc (abfd, (size_t) ((asect->lineno_count + 1) * sizeof (alent))); |
ab31ae53 KR |
2392 | if (lineno_cache == NULL) |
2393 | { | |
57a1867e | 2394 | bfd_set_error (bfd_error_no_memory); |
0f268757 | 2395 | return false; |
ab31ae53 KR |
2396 | } |
2397 | else | |
2398 | { | |
9783e04a DM |
2399 | unsigned int counter = 0; |
2400 | alent *cache_ptr = lineno_cache; | |
2401 | LINENO *src = native_lineno; | |
cbdc7909 | 2402 | |
ab31ae53 KR |
2403 | while (counter < asect->lineno_count) |
2404 | { | |
2405 | struct internal_lineno dst; | |
9783e04a | 2406 | coff_swap_lineno_in (abfd, src, &dst); |
ab31ae53 KR |
2407 | cache_ptr->line_number = dst.l_lnno; |
2408 | ||
2409 | if (cache_ptr->line_number == 0) | |
2410 | { | |
2411 | coff_symbol_type *sym = | |
9783e04a DM |
2412 | (coff_symbol_type *) (dst.l_addr.l_symndx |
2413 | + obj_raw_syments (abfd))->u.syment._n._n_n._n_zeroes; | |
ab31ae53 KR |
2414 | cache_ptr->u.sym = (asymbol *) sym; |
2415 | sym->lineno = cache_ptr; | |
2416 | } | |
2417 | else | |
2418 | { | |
2419 | cache_ptr->u.offset = dst.l_addr.l_paddr | |
9783e04a DM |
2420 | - bfd_section_vma (abfd, asect); |
2421 | } /* If no linenumber expect a symbol index */ | |
ab31ae53 KR |
2422 | |
2423 | cache_ptr++; | |
2424 | src++; | |
2425 | counter++; | |
0f268757 | 2426 | } |
0f268757 | 2427 | cache_ptr->line_number = 0; |
cbdc7909 | 2428 | |
0f268757 | 2429 | } |
ab31ae53 KR |
2430 | asect->lineno = lineno_cache; |
2431 | /* FIXME, free native_lineno here, or use alloca or something. */ | |
2432 | return true; | |
2433 | } | |
0f268757 | 2434 | |
ab31ae53 | 2435 | static boolean |
57a1867e DM |
2436 | coff_slurp_symbol_table (abfd) |
2437 | bfd * abfd; | |
6f715d66 | 2438 | { |
9783e04a | 2439 | combined_entry_type *native_symbols; |
6f715d66 | 2440 | coff_symbol_type *cached_area; |
9783e04a | 2441 | unsigned int *table_ptr; |
cbdc7909 | 2442 | |
9783e04a | 2443 | unsigned int number_of_symbols = 0; |
89665c85 | 2444 | |
9783e04a | 2445 | if (obj_symbols (abfd)) |
6f715d66 | 2446 | return true; |
cbdc7909 | 2447 | |
6f715d66 | 2448 | /* Read in the symbol table */ |
9783e04a DM |
2449 | if ((native_symbols = coff_get_normalized_symtab (abfd)) == NULL) |
2450 | { | |
2451 | return (false); | |
2452 | } /* on error */ | |
cbdc7909 | 2453 | |
6f715d66 | 2454 | /* Allocate enough room for all the symbols in cached form */ |
69645d10 ILT |
2455 | cached_area = ((coff_symbol_type *) |
2456 | bfd_alloc (abfd, | |
2457 | (obj_raw_syment_count (abfd) | |
2458 | * sizeof (coff_symbol_type)))); | |
cbdc7909 | 2459 | |
9783e04a DM |
2460 | if (cached_area == NULL) |
2461 | { | |
57a1867e | 2462 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
2463 | return false; |
2464 | } /* on error */ | |
69645d10 ILT |
2465 | table_ptr = ((unsigned int *) |
2466 | bfd_alloc (abfd, | |
2467 | (obj_raw_syment_count (abfd) | |
2468 | * sizeof (unsigned int)))); | |
cbdc7909 | 2469 | |
9783e04a DM |
2470 | if (table_ptr == NULL) |
2471 | { | |
57a1867e | 2472 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
2473 | return false; |
2474 | } | |
2475 | else | |
2476 | { | |
2477 | coff_symbol_type *dst = cached_area; | |
69645d10 | 2478 | unsigned int last_native_index = obj_raw_syment_count (abfd); |
9783e04a DM |
2479 | unsigned int this_index = 0; |
2480 | while (this_index < last_native_index) | |
2481 | { | |
2482 | combined_entry_type *src = native_symbols + this_index; | |
2483 | table_ptr[this_index] = number_of_symbols; | |
2484 | dst->symbol.the_bfd = abfd; | |
2485 | ||
2486 | dst->symbol.name = (char *) (src->u.syment._n._n_n._n_offset); | |
2487 | /* We use the native name field to point to the cached field. */ | |
2488 | src->u.syment._n._n_n._n_zeroes = (long) dst; | |
2489 | dst->symbol.section = coff_section_from_bfd_index (abfd, | |
2490 | src->u.syment.n_scnum); | |
2491 | dst->symbol.flags = 0; | |
2492 | dst->done_lineno = false; | |
2493 | ||
2494 | switch (src->u.syment.n_sclass) | |
2495 | { | |
0f268757 | 2496 | #ifdef I960 |
9783e04a | 2497 | case C_LEAFEXT: |
0f268757 | 2498 | #if 0 |
9783e04a DM |
2499 | dst->symbol.value = src->u.syment.n_value - dst->symbol.section->vma; |
2500 | dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL; | |
c7e76b5e | 2501 | dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION; |
0f268757 | 2502 | #endif |
9783e04a | 2503 | /* Fall through to next case */ |
cbdc7909 | 2504 | |
0f268757 | 2505 | #endif |
cbdc7909 | 2506 | |
9783e04a | 2507 | case C_EXT: |
cbdc7909 | 2508 | #ifdef RS6000COFF_C |
9783e04a | 2509 | case C_HIDEXT: |
89665c85 SC |
2510 | #endif |
2511 | #ifdef COFF_WITH_PE | |
2512 | /* PE uses storage class 0x68 to denote a section symbol */ | |
2513 | case C_SECTION: | |
9783e04a DM |
2514 | #endif |
2515 | if ((src->u.syment.n_scnum) == 0) | |
2516 | { | |
2517 | if ((src->u.syment.n_value) == 0) | |
2518 | { | |
b5b056fc | 2519 | dst->symbol.section = bfd_und_section_ptr; |
9783e04a DM |
2520 | dst->symbol.value = 0; |
2521 | } | |
2522 | else | |
2523 | { | |
b5b056fc | 2524 | dst->symbol.section = bfd_com_section_ptr; |
9783e04a DM |
2525 | dst->symbol.value = (src->u.syment.n_value); |
2526 | } | |
2527 | } | |
2528 | else | |
2529 | { | |
2530 | /* | |
6f715d66 SC |
2531 | Base the value as an index from the base of the |
2532 | section | |
2533 | */ | |
e98e6ec1 | 2534 | |
9783e04a DM |
2535 | dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL; |
2536 | dst->symbol.value = src->u.syment.n_value - dst->symbol.section->vma; | |
e98e6ec1 | 2537 | |
9783e04a DM |
2538 | if (ISFCN ((src->u.syment.n_type))) |
2539 | { | |
2540 | /* | |
6f715d66 SC |
2541 | A function ext does not go at the end of a file |
2542 | */ | |
c7e76b5e | 2543 | dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION; |
9783e04a DM |
2544 | } |
2545 | } | |
85e0c721 | 2546 | |
9783e04a DM |
2547 | #ifdef RS6000COFF_C |
2548 | /* If this symbol has a csect aux of type LD, the scnlen field | |
2549 | is actually the index of the containing csect symbol. We | |
2550 | need to pointerize it. */ | |
2551 | if (src->u.syment.n_numaux > 0) | |
2552 | { | |
2553 | combined_entry_type *aux; | |
2554 | ||
2555 | aux = src + src->u.syment.n_numaux - 1; | |
2556 | if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) == XTY_LD) | |
2557 | { | |
2558 | aux->u.auxent.x_csect.x_scnlen.p = | |
2559 | native_symbols + aux->u.auxent.x_csect.x_scnlen.l; | |
2560 | aux->fix_scnlen = 1; | |
2561 | } | |
2562 | } | |
2563 | #endif | |
2564 | ||
2565 | break; | |
2566 | ||
2567 | case C_STAT: /* static */ | |
0f268757 | 2568 | #ifdef I960 |
9783e04a DM |
2569 | case C_LEAFSTAT: /* static leaf procedure */ |
2570 | #endif | |
2571 | case C_LABEL: /* label */ | |
2572 | if (src->u.syment.n_scnum == -2) | |
2573 | dst->symbol.flags = BSF_DEBUGGING; | |
2574 | else | |
2575 | dst->symbol.flags = BSF_LOCAL; | |
2576 | /* | |
0d740984 SC |
2577 | Base the value as an index from the base of the section, if |
2578 | there is one | |
6f715d66 | 2579 | */ |
9783e04a DM |
2580 | if (dst->symbol.section) |
2581 | dst->symbol.value = (src->u.syment.n_value) - | |
2582 | dst->symbol.section->vma; | |
2583 | else | |
2584 | dst->symbol.value = (src->u.syment.n_value); | |
2585 | break; | |
2586 | ||
2587 | case C_MOS: /* member of structure */ | |
2588 | case C_EOS: /* end of structure */ | |
2589 | #ifdef NOTDEF /* C_AUTOARG has the same value */ | |
41f50af0 | 2590 | #ifdef C_GLBLREG |
9783e04a | 2591 | case C_GLBLREG: /* A29k-specific storage class */ |
41f50af0 SC |
2592 | #endif |
2593 | #endif | |
9783e04a DM |
2594 | case C_REGPARM: /* register parameter */ |
2595 | case C_REG: /* register variable */ | |
0f268757 | 2596 | #ifdef C_AUTOARG |
9783e04a DM |
2597 | case C_AUTOARG: /* 960-specific storage class */ |
2598 | #endif | |
2599 | case C_TPDEF: /* type definition */ | |
2600 | case C_ARG: | |
2601 | case C_AUTO: /* automatic variable */ | |
2602 | case C_FIELD: /* bit field */ | |
2603 | case C_ENTAG: /* enumeration tag */ | |
2604 | case C_MOE: /* member of enumeration */ | |
2605 | case C_MOU: /* member of union */ | |
2606 | case C_UNTAG: /* union tag */ | |
2607 | dst->symbol.flags = BSF_DEBUGGING; | |
2608 | dst->symbol.value = (src->u.syment.n_value); | |
2609 | break; | |
2610 | ||
2611 | case C_FILE: /* file name */ | |
2612 | case C_STRTAG: /* structure tag */ | |
cbdc7909 | 2613 | #ifdef RS6000COFF_C |
9783e04a DM |
2614 | case C_BINCL: /* beginning of include file */ |
2615 | case C_EINCL: /* ending of include file */ | |
2616 | case C_GSYM: | |
2617 | case C_LSYM: | |
2618 | case C_PSYM: | |
2619 | case C_RSYM: | |
2620 | case C_RPSYM: | |
2621 | case C_STSYM: | |
2622 | case C_DECL: | |
2623 | case C_ENTRY: | |
2624 | case C_FUN: | |
2625 | case C_ESTAT: | |
2626 | #endif | |
2627 | dst->symbol.flags = BSF_DEBUGGING; | |
2628 | dst->symbol.value = (src->u.syment.n_value); | |
2629 | break; | |
cbdc7909 | 2630 | |
9783e04a DM |
2631 | #ifdef RS6000COFF_C |
2632 | case C_BSTAT: | |
2633 | dst->symbol.flags = BSF_DEBUGGING; | |
2634 | dst->symbol.value = src->u.syment.n_value; | |
2635 | ||
2636 | /* The value is actually a symbol index. Save a pointer to | |
2637 | the symbol instead of the index. FIXME: This should use a | |
2638 | union. */ | |
2639 | src->u.syment.n_value = | |
2640 | (long) (native_symbols + src->u.syment.n_value); | |
2641 | src->fix_value = 1; | |
2642 | break; | |
2643 | #endif | |
2644 | ||
2645 | case C_BLOCK: /* ".bb" or ".eb" */ | |
2646 | case C_FCN: /* ".bf" or ".ef" */ | |
2647 | case C_EFCN: /* physical end of function */ | |
2648 | dst->symbol.flags = BSF_LOCAL; | |
2649 | /* | |
6f715d66 SC |
2650 | Base the value as an index from the base of the section |
2651 | */ | |
9783e04a DM |
2652 | dst->symbol.value = (src->u.syment.n_value) - dst->symbol.section->vma; |
2653 | break; | |
2654 | ||
2655 | case C_NULL: | |
2656 | case C_EXTDEF: /* external definition */ | |
2657 | case C_ULABEL: /* undefined label */ | |
2658 | case C_USTATIC: /* undefined static */ | |
89665c85 SC |
2659 | #ifndef COFF_WITH_PE |
2660 | /* C_LINE in regular coff is 0x68. NT has taken over this storage | |
2661 | class to represent a section symbol */ | |
9783e04a | 2662 | case C_LINE: /* line # reformatted as symbol table entry */ |
89665c85 | 2663 | #endif |
9783e04a DM |
2664 | case C_ALIAS: /* duplicate tag */ |
2665 | case C_HIDDEN: /* ext symbol in dmert public lib */ | |
2666 | default: | |
2667 | ||
2668 | fprintf (stderr, "Unrecognized storage class %d (assuming debugging)\n for %s symbol `%s'\n", | |
2669 | src->u.syment.n_sclass, dst->symbol.section->name, | |
2670 | dst->symbol.name); | |
954d412a | 2671 | /* abort();*/ |
9783e04a DM |
2672 | dst->symbol.flags = BSF_DEBUGGING; |
2673 | dst->symbol.value = (src->u.syment.n_value); | |
2674 | break; | |
2675 | } | |
cbdc7909 | 2676 | |
6590a8c9 | 2677 | /* BFD_ASSERT(dst->symbol.flags != 0);*/ |
cbdc7909 | 2678 | |
9783e04a | 2679 | dst->native = src; |
cbdc7909 | 2680 | |
f135c692 | 2681 | dst->symbol.udata.i = 0; |
9783e04a DM |
2682 | dst->lineno = (alent *) NULL; |
2683 | this_index += (src->u.syment.n_numaux) + 1; | |
2684 | dst++; | |
2685 | number_of_symbols++; | |
2686 | } /* walk the native symtab */ | |
2687 | } /* bfdize the native symtab */ | |
cbdc7909 | 2688 | |
9783e04a DM |
2689 | obj_symbols (abfd) = cached_area; |
2690 | obj_raw_syments (abfd) = native_symbols; | |
cbdc7909 | 2691 | |
9783e04a DM |
2692 | bfd_get_symcount (abfd) = number_of_symbols; |
2693 | obj_convert (abfd) = table_ptr; | |
6f715d66 | 2694 | /* Slurp the line tables for each section too */ |
9783e04a DM |
2695 | { |
2696 | asection *p; | |
2697 | p = abfd->sections; | |
2698 | while (p) | |
2699 | { | |
2700 | coff_slurp_line_table (abfd, p); | |
6f715d66 | 2701 | p = p->next; |
0f268757 | 2702 | } |
9783e04a | 2703 | } |
6f715d66 SC |
2704 | return true; |
2705 | } /* coff_slurp_symbol_table() */ | |
0f268757 | 2706 | |
69645d10 ILT |
2707 | /* Check whether a symbol is globally visible. This is used by the |
2708 | COFF backend linker code in cofflink.c, since a couple of targets | |
2709 | have globally visible symbols which are not class C_EXT. This | |
2710 | function need not handle the case of n_class == C_EXT. */ | |
2711 | ||
2712 | #undef OTHER_GLOBAL_CLASS | |
2713 | ||
2714 | #ifdef I960 | |
2715 | #define OTHER_GLOBAL_CLASS C_LEAFEXT | |
2716 | #endif | |
2717 | ||
2718 | #ifdef RS6000COFF_C | |
2719 | #define OTHER_GLOBAL_CLASS C_HIDEXT | |
2720 | #endif | |
2721 | ||
89665c85 SC |
2722 | #ifdef COFF_WITH_PE |
2723 | #define OTHER_GLOBAL_CLASS C_SECTION | |
2724 | #endif | |
2725 | ||
69645d10 ILT |
2726 | #ifdef OTHER_GLOBAL_CLASS |
2727 | ||
2728 | static boolean | |
2729 | coff_sym_is_global (abfd, syment) | |
2730 | bfd *abfd; | |
2731 | struct internal_syment *syment; | |
2732 | { | |
2733 | if (syment->n_sclass == OTHER_GLOBAL_CLASS) | |
2734 | return true; | |
2735 | return false; | |
2736 | } | |
2737 | ||
2738 | #undef OTHER_GLOBAL_CLASS | |
2739 | ||
2740 | #else /* ! defined (OTHER_GLOBAL_CLASS) */ | |
2741 | ||
2742 | /* sym_is_global should not be defined if it has nothing to do. */ | |
2743 | ||
2744 | #define coff_sym_is_global 0 | |
2745 | ||
2746 | #endif /* ! defined (OTHER_GLOBAL_CLASS) */ | |
2747 | ||
9fda1a39 | 2748 | /* |
9783e04a | 2749 | SUBSUBSECTION |
c188b0be | 2750 | Reading relocations |
9fda1a39 | 2751 | |
9fda1a39 SC |
2752 | Coff relocations are easily transformed into the internal BFD form |
2753 | (@code{arelent}). | |
2754 | ||
2755 | Reading a coff relocation table is done in the following stages: | |
2756 | ||
c188b0be | 2757 | o Read the entire coff relocation table into memory. |
9fda1a39 | 2758 | |
c188b0be | 2759 | o Process each relocation in turn; first swap it from the |
9fda1a39 SC |
2760 | external to the internal form. |
2761 | ||
c188b0be DM |
2762 | o Turn the symbol referenced in the relocation's symbol index |
2763 | into a pointer into the canonical symbol table. | |
2764 | This table is the same as the one returned by a call to | |
2765 | @code{bfd_canonicalize_symtab}. The back end will call that | |
9fda1a39 SC |
2766 | routine and save the result if a canonicalization hasn't been done. |
2767 | ||
2768 | o The reloc index is turned into a pointer to a howto | |
2769 | structure, in a back end specific way. For instance, the 386 | |
2770 | and 960 use the @code{r_type} to directly produce an index | |
2771 | into a howto table vector; the 88k subtracts a number from the | |
2772 | @code{r_type} field and creates an addend field. | |
2773 | ||
2774 | ||
6f715d66 SC |
2775 | */ |
2776 | ||
3b4f1a5d | 2777 | #ifndef CALC_ADDEND |
492d52cc ILT |
2778 | #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \ |
2779 | { \ | |
2780 | coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \ | |
2781 | if (ptr && bfd_asymbol_bfd (ptr) != abfd) \ | |
2782 | coffsym = (obj_symbols (abfd) \ | |
2783 | + (cache_ptr->sym_ptr_ptr - symbols)); \ | |
2784 | else if (ptr) \ | |
2785 | coffsym = coff_symbol_from (abfd, ptr); \ | |
2786 | if (coffsym != (coff_symbol_type *) NULL \ | |
2787 | && coffsym->native->u.syment.n_scnum == 0) \ | |
2788 | cache_ptr->addend = 0; \ | |
2789 | else if (ptr && bfd_asymbol_bfd (ptr) == abfd \ | |
2790 | && ptr->section != (asection *) NULL) \ | |
2791 | cache_ptr->addend = - (ptr->section->vma + ptr->value); \ | |
2792 | else \ | |
2793 | cache_ptr->addend = 0; \ | |
2794 | } | |
3b4f1a5d SC |
2795 | #endif |
2796 | ||
9783e04a | 2797 | static boolean |
57a1867e DM |
2798 | coff_slurp_reloc_table (abfd, asect, symbols) |
2799 | bfd * abfd; | |
2800 | sec_ptr asect; | |
2801 | asymbol ** symbols; | |
85e0c721 | 2802 | { |
9783e04a DM |
2803 | RELOC *native_relocs; |
2804 | arelent *reloc_cache; | |
2805 | arelent *cache_ptr; | |
3b4f1a5d SC |
2806 | |
2807 | unsigned int idx; | |
9783e04a | 2808 | |
3b4f1a5d | 2809 | if (asect->relocation) |
9783e04a | 2810 | return true; |
3b4f1a5d | 2811 | if (asect->reloc_count == 0) |
9783e04a | 2812 | return true; |
3b4f1a5d | 2813 | if (asect->flags & SEC_CONSTRUCTOR) |
9783e04a DM |
2814 | return true; |
2815 | if (!coff_slurp_symbol_table (abfd)) | |
2816 | return false; | |
3b4f1a5d | 2817 | native_relocs = |
9783e04a DM |
2818 | (RELOC *) buy_and_read (abfd, |
2819 | asect->rel_filepos, | |
2820 | SEEK_SET, | |
2821 | (size_t) (RELSZ * | |
2822 | asect->reloc_count)); | |
3b4f1a5d | 2823 | reloc_cache = (arelent *) |
9783e04a | 2824 | bfd_alloc (abfd, (size_t) (asect->reloc_count * sizeof (arelent))); |
3b4f1a5d | 2825 | |
9783e04a DM |
2826 | if (reloc_cache == NULL) |
2827 | { | |
57a1867e | 2828 | bfd_set_error (bfd_error_no_memory); |
3b4f1a5d | 2829 | return false; |
9783e04a | 2830 | } |
3b4f1a5d | 2831 | |
9783e04a DM |
2832 | |
2833 | for (idx = 0; idx < asect->reloc_count; idx++) | |
2834 | { | |
616ebcfd | 2835 | #ifdef RELOC_PROCESSING |
3b4f1a5d | 2836 | struct internal_reloc dst; |
9783e04a | 2837 | struct external_reloc *src; |
3b4f1a5d SC |
2838 | |
2839 | cache_ptr = reloc_cache + idx; | |
2840 | src = native_relocs + idx; | |
69645d10 | 2841 | coff_swap_reloc_in (abfd, src, &dst); |
3b4f1a5d | 2842 | |
9783e04a | 2843 | RELOC_PROCESSING (cache_ptr, &dst, symbols, abfd, asect); |
9898b929 | 2844 | #else |
616ebcfd | 2845 | struct internal_reloc dst; |
9783e04a DM |
2846 | asymbol *ptr; |
2847 | struct external_reloc *src; | |
616ebcfd SC |
2848 | |
2849 | cache_ptr = reloc_cache + idx; | |
2850 | src = native_relocs + idx; | |
2851 | ||
69645d10 | 2852 | coff_swap_reloc_in (abfd, src, &dst); |
616ebcfd | 2853 | |
9898b929 JG |
2854 | |
2855 | cache_ptr->address = dst.r_vaddr; | |
2856 | ||
9783e04a | 2857 | if (dst.r_symndx != -1) |
8070f29d KR |
2858 | { |
2859 | /* @@ Should never be greater than count of symbols! */ | |
2860 | if (dst.r_symndx >= obj_conv_table_size (abfd)) | |
2861 | abort (); | |
9783e04a | 2862 | cache_ptr->sym_ptr_ptr = symbols + obj_convert (abfd)[dst.r_symndx]; |
9898b929 | 2863 | ptr = *(cache_ptr->sym_ptr_ptr); |
8070f29d | 2864 | } |
9783e04a | 2865 | else |
8070f29d | 2866 | { |
b5b056fc | 2867 | cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; |
8070f29d KR |
2868 | ptr = 0; |
2869 | } | |
85e0c721 | 2870 | |
cd83759c KR |
2871 | /* The symbols definitions that we have read in have been |
2872 | relocated as if their sections started at 0. But the offsets | |
2873 | refering to the symbols in the raw data have not been | |
2874 | modified, so we have to have a negative addend to compensate. | |
2875 | ||
2876 | Note that symbols which used to be common must be left alone */ | |
cbdc7909 | 2877 | |
3b4f1a5d | 2878 | /* Calculate any reloc addend by looking at the symbol */ |
9783e04a | 2879 | CALC_ADDEND (abfd, ptr, dst, cache_ptr); |
cbdc7909 | 2880 | |
3b4f1a5d | 2881 | cache_ptr->address -= asect->vma; |
e98e6ec1 | 2882 | /* !! cache_ptr->section = (asection *) NULL;*/ |
20fdc627 | 2883 | |
3b4f1a5d | 2884 | /* Fill in the cache_ptr->howto field from dst.r_type */ |
9783e04a | 2885 | RTYPE2HOWTO (cache_ptr, &dst); |
9898b929 JG |
2886 | #endif |
2887 | ||
9783e04a | 2888 | } |
cbdc7909 | 2889 | |
3b4f1a5d SC |
2890 | asect->relocation = reloc_cache; |
2891 | return true; | |
85e0c721 | 2892 | } |
0f268757 | 2893 | |
f135c692 ILT |
2894 | #ifndef coff_rtype_to_howto |
2895 | #ifdef RTYPE2HOWTO | |
2896 | ||
2897 | /* Get the howto structure for a reloc. This is only used if the file | |
2898 | including this one defines coff_relocate_section to be | |
2899 | _bfd_coff_generic_relocate_section, so it is OK if it does not | |
2900 | always work. It is the responsibility of the including file to | |
2901 | make sure it is reasonable if it is needed. */ | |
2902 | ||
2903 | static reloc_howto_type *coff_rtype_to_howto | |
2904 | PARAMS ((bfd *, asection *, struct internal_reloc *, | |
2905 | struct coff_link_hash_entry *, struct internal_syment *, | |
2906 | bfd_vma *)); | |
2907 | ||
2908 | /*ARGSUSED*/ | |
2909 | static reloc_howto_type * | |
2910 | coff_rtype_to_howto (abfd, sec, rel, h, sym, addendp) | |
2911 | bfd *abfd; | |
2912 | asection *sec; | |
2913 | struct internal_reloc *rel; | |
2914 | struct coff_link_hash_entry *h; | |
2915 | struct internal_syment *sym; | |
2916 | bfd_vma *addendp; | |
2917 | { | |
2918 | arelent genrel; | |
2919 | ||
2920 | RTYPE2HOWTO (&genrel, rel); | |
2921 | return genrel.howto; | |
2922 | } | |
2923 | ||
2924 | #else /* ! defined (RTYPE2HOWTO) */ | |
2925 | ||
2926 | #define coff_rtype_to_howto NULL | |
2927 | ||
2928 | #endif /* ! defined (RTYPE2HOWTO) */ | |
2929 | #endif /* ! defined (coff_rtype_to_howto) */ | |
0f268757 | 2930 | |
cd83759c | 2931 | /* This is stupid. This function should be a boolean predicate. */ |
326e32d7 | 2932 | static long |
57a1867e DM |
2933 | coff_canonicalize_reloc (abfd, section, relptr, symbols) |
2934 | bfd * abfd; | |
2935 | sec_ptr section; | |
2936 | arelent ** relptr; | |
2937 | asymbol ** symbols; | |
85e0c721 | 2938 | { |
9783e04a DM |
2939 | arelent *tblptr = section->relocation; |
2940 | unsigned int count = 0; | |
cbdc7909 | 2941 | |
cbdc7909 | 2942 | |
9783e04a DM |
2943 | if (section->flags & SEC_CONSTRUCTOR) |
2944 | { | |
2945 | /* this section has relocs made up by us, they are not in the | |
e98e6ec1 SC |
2946 | file, so take them out of their chain and place them into |
2947 | the data area provided */ | |
9783e04a DM |
2948 | arelent_chain *chain = section->constructor_chain; |
2949 | for (count = 0; count < section->reloc_count; count++) | |
2950 | { | |
2951 | *relptr++ = &chain->relent; | |
2952 | chain = chain->next; | |
2953 | } | |
e98e6ec1 | 2954 | |
9783e04a DM |
2955 | } |
2956 | else | |
2957 | { | |
326e32d7 ILT |
2958 | if (! coff_slurp_reloc_table (abfd, section, symbols)) |
2959 | return -1; | |
85e0c721 | 2960 | |
9783e04a | 2961 | tblptr = section->relocation; |
85e0c721 | 2962 | |
9783e04a DM |
2963 | for (; count++ < section->reloc_count;) |
2964 | *relptr++ = tblptr++; | |
cbdc7909 | 2965 | |
85e0c721 | 2966 | |
9783e04a | 2967 | } |
e98e6ec1 SC |
2968 | *relptr = 0; |
2969 | return section->reloc_count; | |
85e0c721 | 2970 | } |
0f268757 | 2971 | |
0f268757 SC |
2972 | #ifdef GNU960 |
2973 | file_ptr | |
9783e04a DM |
2974 | coff_sym_filepos (abfd) |
2975 | bfd *abfd; | |
2976 | { | |
2977 | return obj_sym_filepos (abfd); | |
2978 | } | |
0f268757 SC |
2979 | #endif |
2980 | ||
fbb61b50 SC |
2981 | #ifndef coff_reloc16_estimate |
2982 | #define coff_reloc16_estimate dummy_reloc16_estimate | |
2983 | ||
56775366 | 2984 | static int |
09a28207 ILT |
2985 | dummy_reloc16_estimate (abfd, input_section, reloc, shrink, link_info) |
2986 | bfd *abfd; | |
fbb61b50 | 2987 | asection *input_section; |
fbb61b50 | 2988 | arelent *reloc; |
56775366 | 2989 | unsigned int shrink; |
330595d0 | 2990 | struct bfd_link_info *link_info; |
fbb61b50 | 2991 | { |
56775366 | 2992 | abort (); |
fbb61b50 SC |
2993 | } |
2994 | ||
2995 | #endif | |
2996 | ||
075caafd | 2997 | #ifndef coff_reloc16_extra_cases |
9e768fa2 JK |
2998 | #define coff_reloc16_extra_cases dummy_reloc16_extra_cases |
2999 | /* This works even if abort is not declared in any header file. */ | |
4d09e8ac | 3000 | static void |
330595d0 ILT |
3001 | dummy_reloc16_extra_cases (abfd, link_info, link_order, reloc, data, src_ptr, |
3002 | dst_ptr) | |
9e768fa2 | 3003 | bfd *abfd; |
330595d0 ILT |
3004 | struct bfd_link_info *link_info; |
3005 | struct bfd_link_order *link_order; | |
9e768fa2 JK |
3006 | arelent *reloc; |
3007 | bfd_byte *data; | |
3008 | unsigned int *src_ptr; | |
3009 | unsigned int *dst_ptr; | |
3010 | { | |
9783e04a | 3011 | fprintf (stderr, "%s\n", reloc->howto->name); |
9e768fa2 JK |
3012 | abort (); |
3013 | } | |
8ad2a31d | 3014 | #endif |
6590a8c9 | 3015 | |
69645d10 ILT |
3016 | /* If coff_relocate_section is defined, we can use the optimized COFF |
3017 | backend linker. Otherwise we must continue to use the old linker. */ | |
3018 | #ifdef coff_relocate_section | |
f135c692 | 3019 | #ifndef coff_bfd_link_hash_table_create |
69645d10 | 3020 | #define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create |
f135c692 ILT |
3021 | #endif |
3022 | #ifndef coff_bfd_link_add_symbols | |
69645d10 | 3023 | #define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols |
f135c692 ILT |
3024 | #endif |
3025 | #ifndef coff_bfd_final_link | |
69645d10 | 3026 | #define coff_bfd_final_link _bfd_coff_final_link |
f135c692 | 3027 | #endif |
69645d10 ILT |
3028 | #else /* ! defined (coff_relocate_section) */ |
3029 | #define coff_relocate_section NULL | |
3030 | #define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create | |
3031 | #define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols | |
3032 | #define coff_bfd_final_link _bfd_generic_final_link | |
3033 | #endif /* ! defined (coff_relocate_section) */ | |
89665c85 | 3034 | #define coff_bfd_link_split_section _bfd_generic_link_split_section |
69645d10 | 3035 | |
f135c692 ILT |
3036 | #ifndef coff_adjust_symndx |
3037 | #define coff_adjust_symndx NULL | |
3038 | #endif | |
3039 | ||
9783e04a DM |
3040 | static CONST bfd_coff_backend_data bfd_coff_std_swap_table = |
3041 | { | |
3042 | coff_swap_aux_in, coff_swap_sym_in, coff_swap_lineno_in, | |
3043 | coff_swap_aux_out, coff_swap_sym_out, | |
3044 | coff_swap_lineno_out, coff_swap_reloc_out, | |
3045 | coff_swap_filehdr_out, coff_swap_aouthdr_out, | |
3046 | coff_swap_scnhdr_out, | |
69645d10 | 3047 | FILHSZ, AOUTSZ, SCNHSZ, SYMESZ, AUXESZ, RELSZ, LINESZ, |
075caafd | 3048 | #ifdef COFF_LONG_FILENAMES |
9783e04a | 3049 | true, |
075caafd | 3050 | #else |
9783e04a | 3051 | false, |
07de8e96 | 3052 | #endif |
9783e04a | 3053 | coff_swap_filehdr_in, coff_swap_aouthdr_in, coff_swap_scnhdr_in, |
69645d10 ILT |
3054 | coff_swap_reloc_in, coff_bad_format_hook, coff_set_arch_mach_hook, |
3055 | coff_mkobject_hook, styp_to_sec_flags, coff_make_section_hook, | |
3056 | coff_set_alignment_hook, coff_slurp_symbol_table, symname_in_debug_hook, | |
3057 | coff_reloc16_extra_cases, coff_reloc16_estimate, | |
3058 | coff_sym_is_global, coff_compute_section_file_positions, | |
f135c692 | 3059 | coff_relocate_section, coff_rtype_to_howto, coff_adjust_symndx |
075caafd | 3060 | }; |
0f268757 | 3061 | |
6812b607 ILT |
3062 | #define coff_close_and_cleanup _bfd_generic_close_and_cleanup |
3063 | #define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info | |
3064 | #define coff_get_section_contents _bfd_generic_get_section_contents | |
09a28207 | 3065 | |
89665c85 SC |
3066 | #define coff_bfd_copy_private_symbol_data \ |
3067 | _bfd_generic_bfd_copy_private_symbol_data | |
09a28207 | 3068 | #define coff_bfd_copy_private_section_data \ |
6812b607 ILT |
3069 | _bfd_generic_bfd_copy_private_section_data |
3070 | #define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data | |
89665c85 SC |
3071 | #define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data |
3072 | #define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags | |
6812b607 | 3073 | |
09a28207 ILT |
3074 | #ifndef coff_bfd_is_local_label |
3075 | #define coff_bfd_is_local_label bfd_generic_is_local_label | |
3076 | #endif | |
e9614321 SC |
3077 | #ifndef coff_read_minisymbols |
3078 | #define coff_read_minisymbols _bfd_generic_read_minisymbols | |
3079 | #endif | |
3080 | #ifndef coff_minisymbol_to_symbol | |
3081 | #define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol | |
3082 | #endif | |
6812b607 ILT |
3083 | |
3084 | /* The reloc lookup routine must be supplied by each individual COFF | |
3085 | backend. */ | |
3086 | #ifndef coff_bfd_reloc_type_lookup | |
3087 | #define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup | |
3088 | #endif | |
3089 | ||
e9614321 | 3090 | #ifndef coff_bfd_get_relocated_section_contents |
6812b607 ILT |
3091 | #define coff_bfd_get_relocated_section_contents \ |
3092 | bfd_generic_get_relocated_section_contents | |
e9614321 SC |
3093 | #endif |
3094 | #ifndef coff_bfd_relax_section | |
6812b607 | 3095 | #define coff_bfd_relax_section bfd_generic_relax_section |
e9614321 | 3096 | #endif |