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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 | |
19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, 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 | ||
075caafd | 305 | #include "coffswap.h" |
0f268757 SC |
306 | \f |
307 | /* void warning(); */ | |
6f715d66 | 308 | |
cbdc7909 JG |
309 | /* |
310 | * Return a word with STYP_* (scnhdr.s_flags) flags set to represent the | |
41f50af0 SC |
311 | * incoming SEC_* flags. The inverse of this function is styp_to_sec_flags(). |
312 | * NOTE: If you add to/change this routine, you should mirror the changes | |
313 | * in styp_to_sec_flags(). | |
314 | */ | |
cbdc7909 | 315 | static long |
fbb61b50 SC |
316 | sec_to_styp_flags (sec_name, sec_flags) |
317 | CONST char *sec_name; | |
318 | flagword sec_flags; | |
41f50af0 | 319 | { |
47cf4997 SC |
320 | long styp_flags = 0; |
321 | ||
9783e04a | 322 | if (!strcmp (sec_name, _TEXT)) |
fbb61b50 SC |
323 | { |
324 | styp_flags = STYP_TEXT; | |
325 | } | |
9783e04a | 326 | else if (!strcmp (sec_name, _DATA)) |
fbb61b50 SC |
327 | { |
328 | styp_flags = STYP_DATA; | |
b26059aa | 329 | #ifdef TWO_DATA_SECS |
fbb61b50 | 330 | } |
9783e04a | 331 | else if (!strcmp (sec_name, ".data2")) |
fbb61b50 SC |
332 | { |
333 | styp_flags = STYP_DATA; | |
9783e04a | 334 | #endif /* TWO_DATA_SECS */ |
fbb61b50 | 335 | } |
9783e04a | 336 | else if (!strcmp (sec_name, _BSS)) |
fbb61b50 SC |
337 | { |
338 | styp_flags = STYP_BSS; | |
8c4a1ace | 339 | #ifdef _COMMENT |
9783e04a DM |
340 | } |
341 | else if (!strcmp (sec_name, _COMMENT)) | |
fbb61b50 SC |
342 | { |
343 | styp_flags = STYP_INFO; | |
9783e04a | 344 | #endif /* _COMMENT */ |
b26059aa | 345 | #ifdef _LIB |
fbb61b50 | 346 | } |
9783e04a | 347 | else if (!strcmp (sec_name, _LIB)) |
fbb61b50 SC |
348 | { |
349 | styp_flags = STYP_LIB; | |
9783e04a | 350 | #endif /* _LIB */ |
35d835c4 | 351 | #ifdef _LIT |
fbb61b50 | 352 | } |
35d835c4 | 353 | else if (!strcmp (sec_name, _LIT)) |
fbb61b50 SC |
354 | { |
355 | styp_flags = STYP_LIT; | |
35d835c4 | 356 | #endif /* _LIT */ |
fbb61b50 | 357 | } |
9783e04a | 358 | else if (!strcmp (sec_name, ".debug")) |
fbb61b50 | 359 | { |
9783e04a DM |
360 | #ifdef STYP_DEBUG |
361 | styp_flags = STYP_DEBUG; | |
362 | #else | |
fbb61b50 | 363 | styp_flags = STYP_INFO; |
9783e04a | 364 | #endif |
fbb61b50 | 365 | } |
89665c85 | 366 | else if (!strncmp (sec_name, ".stab", 5)) |
fbb61b50 SC |
367 | { |
368 | styp_flags = STYP_INFO; | |
369 | } | |
47cf4997 | 370 | /* Try and figure out what it should be */ |
9783e04a | 371 | else if (sec_flags & SEC_CODE) |
fbb61b50 SC |
372 | { |
373 | styp_flags = STYP_TEXT; | |
374 | } | |
9783e04a | 375 | else if (sec_flags & SEC_DATA) |
fbb61b50 SC |
376 | { |
377 | styp_flags = STYP_DATA; | |
378 | } | |
47cf4997 | 379 | else if (sec_flags & SEC_READONLY) |
fbb61b50 | 380 | { |
47cf4997 | 381 | #ifdef STYP_LIT /* 29k readonly text/data section */ |
fbb61b50 | 382 | styp_flags = STYP_LIT; |
41f50af0 | 383 | #else |
fbb61b50 | 384 | styp_flags = STYP_TEXT; |
9783e04a | 385 | #endif /* STYP_LIT */ |
fbb61b50 | 386 | } |
47cf4997 | 387 | else if (sec_flags & SEC_LOAD) |
fbb61b50 SC |
388 | { |
389 | styp_flags = STYP_TEXT; | |
390 | } | |
391 | else if (sec_flags & SEC_ALLOC) | |
392 | { | |
393 | styp_flags = STYP_BSS; | |
394 | } | |
41f50af0 | 395 | |
b26059aa | 396 | #ifdef STYP_NOLOAD |
c16313f0 | 397 | if ((sec_flags & (SEC_NEVER_LOAD | SEC_COFF_SHARED_LIBRARY)) != 0) |
9783e04a | 398 | styp_flags |= STYP_NOLOAD; |
b26059aa ILT |
399 | #endif |
400 | ||
9783e04a | 401 | return (styp_flags); |
41f50af0 | 402 | } |
cbdc7909 | 403 | /* |
41f50af0 | 404 | * Return a word with SEC_* flags set to represent the incoming |
cbdc7909 JG |
405 | * STYP_* flags (from scnhdr.s_flags). The inverse of this |
406 | * function is sec_to_styp_flags(). | |
41f50af0 SC |
407 | * NOTE: If you add to/change this routine, you should mirror the changes |
408 | * in sec_to_styp_flags(). | |
409 | */ | |
cbdc7909 | 410 | static flagword |
e8fbe6d9 ILT |
411 | styp_to_sec_flags (abfd, hdr, name) |
412 | bfd *abfd; | |
57a1867e | 413 | PTR hdr; |
e8fbe6d9 | 414 | const char *name; |
41f50af0 | 415 | { |
075caafd ILT |
416 | struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr; |
417 | long styp_flags = internal_s->s_flags; | |
9783e04a | 418 | flagword sec_flags = 0; |
41f50af0 | 419 | |
b26059aa ILT |
420 | #ifdef STYP_NOLOAD |
421 | if (styp_flags & STYP_NOLOAD) | |
9783e04a DM |
422 | { |
423 | sec_flags |= SEC_NEVER_LOAD; | |
424 | } | |
b26059aa ILT |
425 | #endif /* STYP_NOLOAD */ |
426 | ||
8f718ed3 ILT |
427 | /* For 386 COFF, at least, an unloadable text or data section is |
428 | actually a shared library section. */ | |
429 | if (styp_flags & STYP_TEXT) | |
9783e04a DM |
430 | { |
431 | if (sec_flags & SEC_NEVER_LOAD) | |
c16313f0 | 432 | sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY; |
9783e04a DM |
433 | else |
434 | sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
435 | } | |
8f718ed3 | 436 | else if (styp_flags & STYP_DATA) |
9783e04a DM |
437 | { |
438 | if (sec_flags & SEC_NEVER_LOAD) | |
c16313f0 | 439 | sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY; |
9783e04a DM |
440 | else |
441 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
442 | } | |
443 | else if (styp_flags & STYP_BSS) | |
444 | { | |
35d835c4 | 445 | #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY |
9783e04a | 446 | if (sec_flags & SEC_NEVER_LOAD) |
c16313f0 | 447 | sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY; |
9783e04a | 448 | else |
35d835c4 | 449 | #endif |
9783e04a DM |
450 | sec_flags |= SEC_ALLOC; |
451 | } | |
452 | else if (styp_flags & STYP_INFO) | |
fbb61b50 | 453 | { |
b5b056fc KR |
454 | /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is |
455 | defined. coff_compute_section_file_positions uses | |
456 | COFF_PAGE_SIZE to ensure that the low order bits of the | |
457 | section VMA and the file offset match. If we don't know | |
458 | COFF_PAGE_SIZE, we can't ensure the correct correspondence, | |
459 | and demand page loading of the file will fail. */ | |
460 | #ifdef COFF_PAGE_SIZE | |
461 | sec_flags |= SEC_DEBUGGING; | |
462 | #endif | |
fbb61b50 | 463 | } |
e8fbe6d9 ILT |
464 | else if (strcmp (name, _TEXT) == 0) |
465 | { | |
466 | if (sec_flags & SEC_NEVER_LOAD) | |
467 | sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY; | |
468 | else | |
469 | sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
470 | } | |
471 | else if (strcmp (name, _DATA) == 0 | |
472 | #ifdef TWO_DATA_SECS | |
473 | || strcmp (name, ".data2") == 0 | |
474 | #endif | |
475 | ) | |
476 | { | |
477 | if (sec_flags & SEC_NEVER_LOAD) | |
478 | sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY; | |
479 | else | |
480 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
481 | } | |
482 | else if (strcmp (name, _BSS) == 0) | |
483 | { | |
484 | #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY | |
485 | if (sec_flags & SEC_NEVER_LOAD) | |
486 | sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY; | |
487 | else | |
488 | #endif | |
489 | sec_flags |= SEC_ALLOC; | |
490 | } | |
491 | else if (strcmp (name, ".debug") == 0 | |
492 | #ifdef _COMMENT | |
493 | || strcmp (name, _COMMENT) == 0 | |
494 | #endif | |
89665c85 | 495 | || strncmp (name, ".stab", 5) == 0) |
e8fbe6d9 ILT |
496 | { |
497 | #ifdef COFF_PAGE_SIZE | |
498 | sec_flags |= SEC_DEBUGGING; | |
499 | #endif | |
500 | } | |
501 | #ifdef _LIB | |
502 | else if (strcmp (name, _LIB) == 0) | |
503 | ; | |
504 | #endif | |
505 | #ifdef _LIT | |
506 | else if (strcmp (name, _LIT) == 0) | |
507 | { | |
508 | sec_flags = SEC_LOAD | SEC_ALLOC | SEC_READONLY; | |
509 | } | |
510 | #endif | |
8070f29d | 511 | else |
9783e04a DM |
512 | { |
513 | sec_flags |= SEC_ALLOC | SEC_LOAD; | |
514 | } | |
b26059aa | 515 | |
8070f29d KR |
516 | #ifdef STYP_LIT /* A29k readonly text/data section type */ |
517 | if ((styp_flags & STYP_LIT) == STYP_LIT) | |
9783e04a DM |
518 | { |
519 | sec_flags = (SEC_LOAD | SEC_ALLOC | SEC_READONLY); | |
520 | } | |
521 | #endif /* STYP_LIT */ | |
8070f29d KR |
522 | #ifdef STYP_OTHER_LOAD /* Other loaded sections */ |
523 | if (styp_flags & STYP_OTHER_LOAD) | |
9783e04a DM |
524 | { |
525 | sec_flags = (SEC_LOAD | SEC_ALLOC); | |
526 | } | |
527 | #endif /* STYP_SDATA */ | |
41f50af0 | 528 | |
9783e04a | 529 | return (sec_flags); |
41f50af0 | 530 | } |
0f268757 | 531 | |
f135c692 | 532 | #define get_index(symbol) ((symbol)->udata.i) |
0f268757 | 533 | |
07de8e96 KR |
534 | /* |
535 | INTERNAL_DEFINITION | |
536 | bfd_coff_backend_data | |
537 | ||
538 | CODE_FRAGMENT | |
539 | ||
c188b0be | 540 | Special entry points for gdb to swap in coff symbol table parts: |
9783e04a | 541 | .typedef struct |
60ac749c | 542 | .{ |
07de8e96 | 543 | . void (*_bfd_coff_swap_aux_in) PARAMS (( |
330595d0 | 544 | . bfd *abfd, |
07de8e96 KR |
545 | . PTR ext, |
546 | . int type, | |
330595d0 ILT |
547 | . int class, |
548 | . int indaux, | |
549 | . int numaux, | |
07de8e96 KR |
550 | . PTR in)); |
551 | . | |
552 | . void (*_bfd_coff_swap_sym_in) PARAMS (( | |
553 | . bfd *abfd , | |
554 | . PTR ext, | |
555 | . PTR in)); | |
556 | . | |
557 | . void (*_bfd_coff_swap_lineno_in) PARAMS (( | |
558 | . bfd *abfd, | |
559 | . PTR ext, | |
560 | . PTR in)); | |
561 | . | |
562 | ||
c188b0be | 563 | Special entry points for gas to swap out coff parts: |
07de8e96 KR |
564 | |
565 | . unsigned int (*_bfd_coff_swap_aux_out) PARAMS (( | |
566 | . bfd *abfd, | |
567 | . PTR in, | |
568 | . int type, | |
569 | . int class, | |
330595d0 ILT |
570 | . int indaux, |
571 | . int numaux, | |
07de8e96 KR |
572 | . PTR ext)); |
573 | . | |
574 | . unsigned int (*_bfd_coff_swap_sym_out) PARAMS (( | |
575 | . bfd *abfd, | |
576 | . PTR in, | |
577 | . PTR ext)); | |
578 | . | |
579 | . unsigned int (*_bfd_coff_swap_lineno_out) PARAMS (( | |
580 | . bfd *abfd, | |
581 | . PTR in, | |
582 | . PTR ext)); | |
583 | . | |
584 | . unsigned int (*_bfd_coff_swap_reloc_out) PARAMS (( | |
585 | . bfd *abfd, | |
586 | . PTR src, | |
587 | . PTR dst)); | |
588 | . | |
589 | . unsigned int (*_bfd_coff_swap_filehdr_out) PARAMS (( | |
590 | . bfd *abfd, | |
591 | . PTR in, | |
592 | . PTR out)); | |
593 | . | |
594 | . unsigned int (*_bfd_coff_swap_aouthdr_out) PARAMS (( | |
595 | . bfd *abfd, | |
596 | . PTR in, | |
597 | . PTR out)); | |
598 | . | |
599 | . unsigned int (*_bfd_coff_swap_scnhdr_out) PARAMS (( | |
600 | . bfd *abfd, | |
601 | . PTR in, | |
602 | . PTR out)); | |
603 | . | |
075caafd ILT |
604 | |
605 | Special entry points for generic COFF routines to call target | |
c188b0be | 606 | dependent COFF routines: |
075caafd ILT |
607 | |
608 | . unsigned int _bfd_filhsz; | |
609 | . unsigned int _bfd_aoutsz; | |
610 | . unsigned int _bfd_scnhsz; | |
611 | . unsigned int _bfd_symesz; | |
612 | . unsigned int _bfd_auxesz; | |
69645d10 | 613 | . unsigned int _bfd_relsz; |
075caafd ILT |
614 | . unsigned int _bfd_linesz; |
615 | . boolean _bfd_coff_long_filenames; | |
616 | . void (*_bfd_coff_swap_filehdr_in) PARAMS (( | |
617 | . bfd *abfd, | |
618 | . PTR ext, | |
619 | . PTR in)); | |
620 | . void (*_bfd_coff_swap_aouthdr_in) PARAMS (( | |
621 | . bfd *abfd, | |
622 | . PTR ext, | |
623 | . PTR in)); | |
624 | . void (*_bfd_coff_swap_scnhdr_in) PARAMS (( | |
625 | . bfd *abfd, | |
626 | . PTR ext, | |
627 | . PTR in)); | |
69645d10 ILT |
628 | . void (*_bfd_coff_swap_reloc_in) PARAMS (( |
629 | . bfd *abfd, | |
630 | . PTR ext, | |
631 | . PTR in)); | |
075caafd ILT |
632 | . boolean (*_bfd_coff_bad_format_hook) PARAMS (( |
633 | . bfd *abfd, | |
634 | . PTR internal_filehdr)); | |
635 | . boolean (*_bfd_coff_set_arch_mach_hook) PARAMS (( | |
636 | . bfd *abfd, | |
637 | . PTR internal_filehdr)); | |
638 | . PTR (*_bfd_coff_mkobject_hook) PARAMS (( | |
639 | . bfd *abfd, | |
27f524a3 ILT |
640 | . PTR internal_filehdr, |
641 | . PTR internal_aouthdr)); | |
075caafd ILT |
642 | . flagword (*_bfd_styp_to_sec_flags_hook) PARAMS (( |
643 | . bfd *abfd, | |
e8fbe6d9 ILT |
644 | . PTR internal_scnhdr, |
645 | . const char *name)); | |
075caafd ILT |
646 | . asection *(*_bfd_make_section_hook) PARAMS (( |
647 | . bfd *abfd, | |
648 | . char *name)); | |
649 | . void (*_bfd_set_alignment_hook) PARAMS (( | |
650 | . bfd *abfd, | |
651 | . asection *sec, | |
652 | . PTR internal_scnhdr)); | |
653 | . boolean (*_bfd_coff_slurp_symbol_table) PARAMS (( | |
654 | . bfd *abfd)); | |
655 | . boolean (*_bfd_coff_symname_in_debug) PARAMS (( | |
656 | . bfd *abfd, | |
657 | . struct internal_syment *sym)); | |
658 | . void (*_bfd_coff_reloc16_extra_cases) PARAMS (( | |
659 | . bfd *abfd, | |
330595d0 ILT |
660 | . struct bfd_link_info *link_info, |
661 | . struct bfd_link_order *link_order, | |
075caafd ILT |
662 | . arelent *reloc, |
663 | . bfd_byte *data, | |
664 | . unsigned int *src_ptr, | |
665 | . unsigned int *dst_ptr)); | |
fbb61b50 | 666 | . int (*_bfd_coff_reloc16_estimate) PARAMS (( |
09a28207 | 667 | . bfd *abfd, |
fbb61b50 | 668 | . asection *input_section, |
fbb61b50 | 669 | . arelent *r, |
330595d0 ILT |
670 | . unsigned int shrink, |
671 | . struct bfd_link_info *link_info)); | |
69645d10 ILT |
672 | . boolean (*_bfd_coff_sym_is_global) PARAMS (( |
673 | . bfd *abfd, | |
674 | . struct internal_syment *)); | |
675 | . void (*_bfd_coff_compute_section_file_positions) PARAMS (( | |
676 | . bfd *abfd)); | |
677 | . boolean (*_bfd_coff_relocate_section) PARAMS (( | |
678 | . bfd *output_bfd, | |
679 | . struct bfd_link_info *info, | |
680 | . bfd *input_bfd, | |
681 | . asection *input_section, | |
682 | . bfd_byte *contents, | |
683 | . struct internal_reloc *relocs, | |
684 | . struct internal_syment *syms, | |
685 | . asection **sections)); | |
f135c692 ILT |
686 | . reloc_howto_type *(*_bfd_coff_rtype_to_howto) PARAMS (( |
687 | . bfd *abfd, | |
688 | . asection *sec, | |
689 | . struct internal_reloc *rel, | |
690 | . struct coff_link_hash_entry *h, | |
691 | . struct internal_syment *sym, | |
692 | . bfd_vma *addendp)); | |
693 | . boolean (*_bfd_coff_adjust_symndx) PARAMS (( | |
694 | . bfd *obfd, | |
695 | . struct bfd_link_info *info, | |
696 | . bfd *ibfd, | |
697 | . asection *sec, | |
698 | . struct internal_reloc *reloc, | |
699 | . boolean *adjustedp)); | |
fbb61b50 | 700 | . |
07de8e96 KR |
701 | .} bfd_coff_backend_data; |
702 | . | |
07de8e96 KR |
703 | .#define coff_backend_info(abfd) ((bfd_coff_backend_data *) (abfd)->xvec->backend_data) |
704 | . | |
330595d0 ILT |
705 | .#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \ |
706 | . ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i)) | |
07de8e96 KR |
707 | . |
708 | .#define bfd_coff_swap_sym_in(a,e,i) \ | |
709 | . ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i)) | |
710 | . | |
711 | .#define bfd_coff_swap_lineno_in(a,e,i) \ | |
712 | . ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i)) | |
713 | . | |
714 | .#define bfd_coff_swap_reloc_out(abfd, i, o) \ | |
715 | . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o)) | |
716 | . | |
717 | .#define bfd_coff_swap_lineno_out(abfd, i, o) \ | |
718 | . ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o)) | |
719 | . | |
330595d0 ILT |
720 | .#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \ |
721 | . ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o)) | |
07de8e96 KR |
722 | . |
723 | .#define bfd_coff_swap_sym_out(abfd, i,o) \ | |
724 | . ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o)) | |
725 | . | |
726 | .#define bfd_coff_swap_scnhdr_out(abfd, i,o) \ | |
727 | . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o)) | |
728 | . | |
729 | .#define bfd_coff_swap_filehdr_out(abfd, i,o) \ | |
730 | . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o)) | |
731 | . | |
732 | .#define bfd_coff_swap_aouthdr_out(abfd, i,o) \ | |
733 | . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o)) | |
734 | . | |
075caafd ILT |
735 | .#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz) |
736 | .#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz) | |
737 | .#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz) | |
738 | .#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz) | |
739 | .#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz) | |
69645d10 | 740 | .#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz) |
075caafd ILT |
741 | .#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz) |
742 | .#define bfd_coff_long_filenames(abfd) (coff_backend_info (abfd)->_bfd_coff_long_filenames) | |
743 | .#define bfd_coff_swap_filehdr_in(abfd, i,o) \ | |
744 | . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o)) | |
745 | . | |
746 | .#define bfd_coff_swap_aouthdr_in(abfd, i,o) \ | |
747 | . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o)) | |
748 | . | |
749 | .#define bfd_coff_swap_scnhdr_in(abfd, i,o) \ | |
750 | . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o)) | |
751 | . | |
69645d10 ILT |
752 | .#define bfd_coff_swap_reloc_in(abfd, i, o) \ |
753 | . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o)) | |
754 | . | |
075caafd ILT |
755 | .#define bfd_coff_bad_format_hook(abfd, filehdr) \ |
756 | . ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr)) | |
757 | . | |
758 | .#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\ | |
759 | . ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr)) | |
27f524a3 ILT |
760 | .#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\ |
761 | . ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook) (abfd, filehdr, aouthdr)) | |
075caafd | 762 | . |
e8fbe6d9 ILT |
763 | .#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name)\ |
764 | . ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook) (abfd, scnhdr, name)) | |
075caafd ILT |
765 | . |
766 | .#define bfd_coff_make_section_hook(abfd, name)\ | |
767 | . ((coff_backend_info (abfd)->_bfd_make_section_hook) (abfd, name)) | |
768 | . | |
769 | .#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\ | |
770 | . ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr)) | |
771 | . | |
772 | .#define bfd_coff_slurp_symbol_table(abfd)\ | |
773 | . ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd)) | |
774 | . | |
775 | .#define bfd_coff_symname_in_debug(abfd, sym)\ | |
776 | . ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym)) | |
777 | . | |
330595d0 | 778 | .#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)\ |
075caafd | 779 | . ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\ |
330595d0 | 780 | . (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)) |
fbb61b50 | 781 | . |
09a28207 | 782 | .#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\ |
fbb61b50 | 783 | . ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\ |
09a28207 | 784 | . (abfd, section, reloc, shrink, link_info)) |
9783e04a | 785 | . |
69645d10 ILT |
786 | .#define bfd_coff_sym_is_global(abfd, sym)\ |
787 | . ((coff_backend_info (abfd)->_bfd_coff_sym_is_global)\ | |
788 | . (abfd, sym)) | |
789 | . | |
790 | .#define bfd_coff_compute_section_file_positions(abfd)\ | |
791 | . ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\ | |
792 | . (abfd)) | |
793 | . | |
794 | .#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\ | |
795 | . ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\ | |
796 | . (obfd, info, ibfd, o, con, rel, isyms, secs)) | |
f135c692 ILT |
797 | .#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\ |
798 | . ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\ | |
799 | . (abfd, sec, rel, h, sym, addendp)) | |
800 | .#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\ | |
801 | . ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\ | |
802 | . (obfd, info, ibfd, sec, rel, adjustedp)) | |
69645d10 | 803 | . |
07de8e96 | 804 | */ |
0f268757 | 805 | |
075caafd | 806 | /* See whether the magic number matches. */ |
7a8b18b6 | 807 | |
075caafd | 808 | static boolean |
57a1867e DM |
809 | coff_bad_format_hook (abfd, filehdr) |
810 | bfd * abfd; | |
811 | PTR filehdr; | |
0f268757 | 812 | { |
075caafd | 813 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; |
0f268757 | 814 | |
075caafd ILT |
815 | if (BADMAG (*internal_f)) |
816 | return false; | |
0f268757 | 817 | |
075caafd ILT |
818 | /* if the optional header is NULL or not the correct size then |
819 | quit; the only difference I can see between m88k dgux headers (MC88DMAGIC) | |
820 | and Intel 960 readwrite headers (I960WRMAGIC) is that the | |
821 | optional header is of a different size. | |
cbdc7909 | 822 | |
075caafd ILT |
823 | But the mips keeps extra stuff in it's opthdr, so dont check |
824 | when doing that | |
825 | */ | |
0f268757 | 826 | |
075caafd ILT |
827 | #if defined(M88) || defined(I960) |
828 | if (internal_f->f_opthdr != 0 && AOUTSZ != internal_f->f_opthdr) | |
829 | return false; | |
0f268757 | 830 | #endif |
0f268757 | 831 | |
075caafd | 832 | return true; |
0f268757 SC |
833 | } |
834 | ||
075caafd | 835 | static asection * |
57a1867e DM |
836 | coff_make_section_hook (abfd, name) |
837 | bfd * abfd; | |
838 | char *name; | |
0f268757 | 839 | { |
075caafd | 840 | #ifdef TWO_DATA_SECS |
fbb61b50 SC |
841 | /* FIXME: This predates the call to bfd_make_section_anyway |
842 | in make_a_section_from_file, and can probably go away. */ | |
075caafd ILT |
843 | /* On SCO a file created by the Microsoft assembler can have two |
844 | .data sections. We use .data2 for the second one. */ | |
845 | if (strcmp (name, _DATA) == 0) | |
846 | return bfd_make_section (abfd, ".data2"); | |
0f268757 | 847 | #endif |
075caafd | 848 | return (asection *) NULL; |
0f268757 SC |
849 | } |
850 | ||
851 | /* | |
852 | initialize a section structure with information peculiar to this | |
853 | particular implementation of coff | |
854 | */ | |
855 | ||
075caafd | 856 | static boolean |
57a1867e DM |
857 | coff_new_section_hook (abfd, section) |
858 | bfd * abfd; | |
859 | asection * section; | |
0f268757 | 860 | { |
f135c692 ILT |
861 | section->alignment_power = COFF_DEFAULT_SECTION_ALIGNMENT_POWER; |
862 | ||
8070f29d KR |
863 | /* Allocate aux records for section symbols, to store size and |
864 | related info. | |
865 | ||
866 | @@ Shouldn't use constant multiplier here! */ | |
867 | coffsymbol (section->symbol)->native = | |
868 | (combined_entry_type *) bfd_zalloc (abfd, | |
869 | sizeof (combined_entry_type) * 10); | |
c16313f0 | 870 | |
f135c692 ILT |
871 | /* The .stab section must be aligned to 2**2 at most, because |
872 | otherwise there may be gaps in the section which gdb will not | |
873 | know how to interpret. Examining the section name is a hack, but | |
874 | that is also how gdb locates the section. We also align the | |
875 | .stabstr section this way for backward compatibility, although I | |
876 | believe it would work anyhow. */ | |
877 | if (COFF_DEFAULT_SECTION_ALIGNMENT_POWER > 2 | |
89665c85 | 878 | && (strncmp (section->name, ".stab", 5) == 0)) |
f135c692 | 879 | section->alignment_power = 2; |
c16313f0 | 880 | |
0f268757 SC |
881 | return true; |
882 | } | |
883 | ||
0f268757 | 884 | #ifdef I960 |
e98e6ec1 | 885 | |
075caafd ILT |
886 | /* Set the alignment of a BFD section. */ |
887 | ||
888 | static void | |
57a1867e DM |
889 | coff_set_alignment_hook (abfd, section, scnhdr) |
890 | bfd * abfd; | |
891 | asection * section; | |
892 | PTR scnhdr; | |
e98e6ec1 | 893 | { |
075caafd ILT |
894 | struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr; |
895 | unsigned int i; | |
896 | ||
897 | for (i = 0; i < 32; i++) | |
898 | if ((1 << i) >= hdr->s_align) | |
899 | break; | |
900 | section->alignment_power = i; | |
e98e6ec1 SC |
901 | } |
902 | ||
075caafd | 903 | #else /* ! I960 */ |
0f268757 | 904 | |
075caafd ILT |
905 | #define coff_set_alignment_hook \ |
906 | ((void (*) PARAMS ((bfd *, asection *, PTR))) bfd_void) | |
41f50af0 | 907 | |
075caafd | 908 | #endif /* ! I960 */ |
0f268757 | 909 | |
9783e04a | 910 | static boolean |
57a1867e DM |
911 | coff_mkobject (abfd) |
912 | bfd * abfd; | |
0f268757 | 913 | { |
075caafd ILT |
914 | coff_data_type *coff; |
915 | ||
9783e04a DM |
916 | abfd->tdata.coff_obj_data = (struct coff_tdata *) bfd_zalloc (abfd, sizeof (coff_data_type)); |
917 | if (abfd->tdata.coff_obj_data == 0) | |
918 | { | |
57a1867e | 919 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
920 | return false; |
921 | } | |
075caafd ILT |
922 | coff = coff_data (abfd); |
923 | coff->symbols = (coff_symbol_type *) NULL; | |
924 | coff->conversion_table = (unsigned int *) NULL; | |
925 | coff->raw_syments = (struct coff_ptr_struct *) NULL; | |
075caafd | 926 | coff->relocbase = 0; |
6590a8c9 | 927 | /* make_abs_section(abfd);*/ |
89665c85 SC |
928 | |
929 | #ifdef COFF_WITH_PE | |
930 | obj_pe (abfd) = 1; | |
931 | #endif | |
0f268757 SC |
932 | return true; |
933 | } | |
934 | ||
075caafd ILT |
935 | /* Create the COFF backend specific information. */ |
936 | ||
9783e04a | 937 | static PTR |
57a1867e DM |
938 | coff_mkobject_hook (abfd, filehdr, aouthdr) |
939 | bfd * abfd; | |
940 | PTR filehdr; | |
941 | PTR aouthdr; | |
0f268757 | 942 | { |
075caafd | 943 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; |
0f268757 | 944 | coff_data_type *coff; |
cbdc7909 | 945 | |
075caafd ILT |
946 | if (coff_mkobject (abfd) == false) |
947 | return NULL; | |
e98e6ec1 | 948 | |
075caafd | 949 | coff = coff_data (abfd); |
cbdc7909 | 950 | |
075caafd | 951 | coff->sym_filepos = internal_f->f_symptr; |
cbdc7909 | 952 | |
075caafd ILT |
953 | /* These members communicate important constants about the symbol |
954 | table to GDB's symbol-reading code. These `constants' | |
955 | unfortunately vary among coff implementations... */ | |
956 | coff->local_n_btmask = N_BTMASK; | |
957 | coff->local_n_btshft = N_BTSHFT; | |
9783e04a | 958 | coff->local_n_tmask = N_TMASK; |
075caafd | 959 | coff->local_n_tshift = N_TSHIFT; |
9783e04a DM |
960 | coff->local_symesz = SYMESZ; |
961 | coff->local_auxesz = AUXESZ; | |
962 | coff->local_linesz = LINESZ; | |
cbdc7909 | 963 | |
69645d10 ILT |
964 | obj_raw_syment_count (abfd) = |
965 | obj_conv_table_size (abfd) = | |
966 | internal_f->f_nsyms; | |
967 | ||
075caafd ILT |
968 | return (PTR) coff; |
969 | } | |
cbdc7909 | 970 | |
075caafd ILT |
971 | /* Determine the machine architecture and type. FIXME: This is target |
972 | dependent because the magic numbers are defined in the target | |
973 | dependent header files. But there is no particular need for this. | |
974 | If the magic numbers were moved to a separate file, this function | |
975 | would be target independent and would also be much more successful | |
976 | at linking together COFF files for different architectures. */ | |
cbdc7909 | 977 | |
075caafd | 978 | static boolean |
9783e04a | 979 | coff_set_arch_mach_hook (abfd, filehdr) |
4d09e8ac JK |
980 | bfd *abfd; |
981 | PTR filehdr; | |
075caafd ILT |
982 | { |
983 | long machine; | |
984 | enum bfd_architecture arch; | |
985 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
e98e6ec1 | 986 | |
075caafd | 987 | machine = 0; |
9783e04a DM |
988 | switch (internal_f->f_magic) |
989 | { | |
20fdc627 | 990 | #ifdef I386MAGIC |
9783e04a DM |
991 | case I386MAGIC: |
992 | case I386PTXMAGIC: | |
993 | case I386AIXMAGIC: /* Danbury PS/2 AIX C Compiler */ | |
994 | case LYNXCOFFMAGIC: /* shadows the m68k Lynx number below, sigh */ | |
995 | arch = bfd_arch_i386; | |
996 | machine = 0; | |
997 | break; | |
20fdc627 | 998 | #endif |
cbdc7909 | 999 | #ifdef A29K_MAGIC_BIG |
9783e04a DM |
1000 | case A29K_MAGIC_BIG: |
1001 | case A29K_MAGIC_LITTLE: | |
1002 | arch = bfd_arch_a29k; | |
1003 | machine = 0; | |
1004 | break; | |
41f50af0 | 1005 | #endif |
89665c85 SC |
1006 | #ifdef ARMMAGIC |
1007 | case ARMMAGIC: | |
1008 | arch = bfd_arch_arm; | |
1009 | machine =0; | |
1010 | break; | |
1011 | #endif | |
0f268757 | 1012 | #ifdef MC68MAGIC |
9783e04a DM |
1013 | case MC68MAGIC: |
1014 | case M68MAGIC: | |
97eb2f0c | 1015 | #ifdef MC68KBCSMAGIC |
9783e04a | 1016 | case MC68KBCSMAGIC: |
97eb2f0c KR |
1017 | #endif |
1018 | #ifdef APOLLOM68KMAGIC | |
9783e04a | 1019 | case APOLLOM68KMAGIC: |
c188b0be DM |
1020 | #endif |
1021 | #ifdef LYNXCOFFMAGIC | |
9783e04a | 1022 | case LYNXCOFFMAGIC: |
97eb2f0c | 1023 | #endif |
9783e04a DM |
1024 | arch = bfd_arch_m68k; |
1025 | machine = 68020; | |
1026 | break; | |
0f268757 SC |
1027 | #endif |
1028 | #ifdef MC88MAGIC | |
9783e04a DM |
1029 | case MC88MAGIC: |
1030 | case MC88DMAGIC: | |
1031 | case MC88OMAGIC: | |
1032 | arch = bfd_arch_m88k; | |
1033 | machine = 88100; | |
1034 | break; | |
0f268757 | 1035 | #endif |
dc999ad9 | 1036 | #ifdef Z8KMAGIC |
9783e04a DM |
1037 | case Z8KMAGIC: |
1038 | arch = bfd_arch_z8k; | |
1039 | switch (internal_f->f_flags & F_MACHMASK) | |
1040 | { | |
1041 | case F_Z8001: | |
1042 | machine = bfd_mach_z8001; | |
1043 | break; | |
1044 | case F_Z8002: | |
1045 | machine = bfd_mach_z8002; | |
1046 | break; | |
1047 | default: | |
1048 | return false; | |
1049 | } | |
1050 | break; | |
dc999ad9 | 1051 | #endif |
0f268757 SC |
1052 | #ifdef I960 |
1053 | #ifdef I960ROMAGIC | |
9783e04a DM |
1054 | case I960ROMAGIC: |
1055 | case I960RWMAGIC: | |
1056 | arch = bfd_arch_i960; | |
1057 | switch (F_I960TYPE & internal_f->f_flags) | |
0f268757 SC |
1058 | { |
1059 | default: | |
1060 | case F_I960CORE: | |
0d740984 | 1061 | machine = bfd_mach_i960_core; |
0f268757 SC |
1062 | break; |
1063 | case F_I960KB: | |
0d740984 | 1064 | machine = bfd_mach_i960_kb_sb; |
0f268757 | 1065 | break; |
9783e04a | 1066 | case F_I960MC: |
0d740984 | 1067 | machine = bfd_mach_i960_mc; |
0f268757 SC |
1068 | break; |
1069 | case F_I960XA: | |
0d740984 | 1070 | machine = bfd_mach_i960_xa; |
0f268757 SC |
1071 | break; |
1072 | case F_I960CA: | |
0d740984 | 1073 | machine = bfd_mach_i960_ca; |
0f268757 SC |
1074 | break; |
1075 | case F_I960KA: | |
0d740984 | 1076 | machine = bfd_mach_i960_ka_sa; |
0f268757 | 1077 | break; |
b5b056fc KR |
1078 | /* start-sanitize-i960xl */ |
1079 | case F_I960XL: | |
1080 | machine = bfd_mach_i960_xl; | |
1081 | break; | |
1082 | /* end-sanitize-i960xl */ | |
0f268757 | 1083 | } |
9783e04a | 1084 | break; |
0f268757 SC |
1085 | #endif |
1086 | #endif | |
cbdc7909 JG |
1087 | |
1088 | #ifdef U802ROMAGIC | |
9783e04a DM |
1089 | case U802ROMAGIC: |
1090 | case U802WRMAGIC: | |
1091 | case U802TOCMAGIC: | |
1092 | arch = bfd_arch_rs6000; | |
1093 | machine = 6000; | |
1094 | break; | |
cbdc7909 JG |
1095 | #endif |
1096 | ||
dc999ad9 | 1097 | #ifdef WE32KMAGIC |
9783e04a DM |
1098 | case WE32KMAGIC: |
1099 | arch = bfd_arch_we32k; | |
1100 | machine = 0; | |
1101 | break; | |
dc999ad9 ILT |
1102 | #endif |
1103 | ||
3b4f1a5d | 1104 | #ifdef H8300MAGIC |
9783e04a DM |
1105 | case H8300MAGIC: |
1106 | arch = bfd_arch_h8300; | |
1107 | machine = bfd_mach_h8300; | |
1108 | /* !! FIXME this probably isn't the right place for this */ | |
1109 | abfd->flags |= BFD_IS_RELAXABLE; | |
1110 | break; | |
4d09e8ac JK |
1111 | #endif |
1112 | ||
1113 | #ifdef H8300HMAGIC | |
9783e04a DM |
1114 | case H8300HMAGIC: |
1115 | arch = bfd_arch_h8300; | |
1116 | machine = bfd_mach_h8300h; | |
1117 | /* !! FIXME this probably isn't the right place for this */ | |
1118 | abfd->flags |= BFD_IS_RELAXABLE; | |
1119 | break; | |
142ce43e SC |
1120 | #endif |
1121 | ||
f135c692 ILT |
1122 | #ifdef SH_ARCH_MAGIC_BIG |
1123 | case SH_ARCH_MAGIC_BIG: | |
1124 | case SH_ARCH_MAGIC_LITTLE: | |
9783e04a DM |
1125 | arch = bfd_arch_sh; |
1126 | machine = 0; | |
1127 | break; | |
9faacb92 SC |
1128 | #endif |
1129 | ||
142ce43e | 1130 | #ifdef H8500MAGIC |
9783e04a DM |
1131 | case H8500MAGIC: |
1132 | arch = bfd_arch_h8500; | |
1133 | machine = 0; | |
1134 | break; | |
3b4f1a5d | 1135 | #endif |
cbdc7909 | 1136 | |
c188b0be | 1137 | #ifdef SPARCMAGIC |
9783e04a | 1138 | case SPARCMAGIC: |
c16313f0 ILT |
1139 | #ifdef LYNXCOFFMAGIC |
1140 | case LYNXCOFFMAGIC: | |
1141 | #endif | |
9783e04a DM |
1142 | arch = bfd_arch_sparc; |
1143 | machine = 0; | |
1144 | break; | |
c188b0be DM |
1145 | #endif |
1146 | ||
9783e04a DM |
1147 | default: /* Unreadable input file type */ |
1148 | arch = bfd_arch_obscure; | |
1149 | break; | |
1150 | } | |
cbdc7909 | 1151 | |
9783e04a | 1152 | bfd_default_set_arch_mach (abfd, arch, machine); |
075caafd ILT |
1153 | return true; |
1154 | } | |
cbdc7909 | 1155 | |
075caafd | 1156 | #ifdef SYMNAME_IN_DEBUG |
6f715d66 | 1157 | |
075caafd | 1158 | static boolean |
57a1867e DM |
1159 | symname_in_debug_hook (abfd, sym) |
1160 | bfd * abfd; | |
1161 | struct internal_syment *sym; | |
075caafd ILT |
1162 | { |
1163 | return SYMNAME_IN_DEBUG (sym) ? true : false; | |
1164 | } | |
6f715d66 | 1165 | |
075caafd | 1166 | #else |
cbdc7909 | 1167 | |
075caafd ILT |
1168 | #define symname_in_debug_hook \ |
1169 | (boolean (*) PARAMS ((bfd *, struct internal_syment *))) bfd_false | |
cbdc7909 | 1170 | |
075caafd | 1171 | #endif |
7a8b18b6 | 1172 | |
9fda1a39 SC |
1173 | /* |
1174 | SUBSUBSECTION | |
c188b0be | 1175 | Writing relocations |
9fda1a39 | 1176 | |
c188b0be DM |
1177 | To write relocations, the back end steps though the |
1178 | canonical relocation table and create an | |
9fda1a39 | 1179 | @code{internal_reloc}. The symbol index to use is removed from |
c188b0be | 1180 | the @code{offset} field in the symbol table supplied. The |
9fda1a39 | 1181 | address comes directly from the sum of the section base |
c188b0be | 1182 | address and the relocation offset; the type is dug directly |
9fda1a39 SC |
1183 | from the howto field. Then the @code{internal_reloc} is |
1184 | swapped into the shape of an @code{external_reloc} and written | |
9783e04a | 1185 | out to disk. |
9fda1a39 | 1186 | |
6f715d66 | 1187 | */ |
0f268757 | 1188 | |
791a3db4 | 1189 | static boolean |
89665c85 | 1190 | coff_write_relocs (abfd, first_undef) |
57a1867e | 1191 | bfd * abfd; |
89665c85 | 1192 | int first_undef; |
6f715d66 | 1193 | { |
9783e04a DM |
1194 | asection *s; |
1195 | for (s = abfd->sections; s != (asection *) NULL; s = s->next) | |
1196 | { | |
1197 | unsigned int i; | |
1198 | struct external_reloc dst; | |
1199 | ||
1200 | arelent **p = s->orelocation; | |
791a3db4 ILT |
1201 | if (bfd_seek (abfd, s->rel_filepos, SEEK_SET) != 0) |
1202 | return false; | |
9783e04a DM |
1203 | for (i = 0; i < s->reloc_count; i++) |
1204 | { | |
1205 | struct internal_reloc n; | |
1206 | arelent *q = p[i]; | |
1207 | memset ((PTR) & n, 0, sizeof (n)); | |
1208 | ||
89665c85 SC |
1209 | /* Now we've renumbered the symbols we know where the |
1210 | undefined symbols live in the table. Check the reloc | |
1211 | entries for symbols who's output bfd isn't the right one. | |
1212 | This is because the symbol was undefined (which means | |
1213 | that all the pointers are never made to point to the same | |
1214 | place). This is a bad thing,'cause the symbols attached | |
1215 | to the output bfd are indexed, so that the relocation | |
1216 | entries know which symbol index they point to. So we | |
1217 | have to look up the output symbol here. */ | |
1218 | ||
1219 | if (q->sym_ptr_ptr[0]->the_bfd != abfd) | |
1220 | { | |
1221 | int i; | |
1222 | const char *sname = q->sym_ptr_ptr[0]->name; | |
1223 | asymbol **outsyms = abfd->outsymbols; | |
1224 | for (i = first_undef; outsyms[i]; i++) | |
1225 | { | |
1226 | const char *intable = outsyms[i]->name; | |
1227 | if (strcmp (intable, sname) == 0) { | |
1228 | /* got a hit, so repoint the reloc */ | |
1229 | q->sym_ptr_ptr = outsyms + i; | |
1230 | break; | |
1231 | } | |
1232 | } | |
1233 | } | |
1234 | ||
9783e04a DM |
1235 | n.r_vaddr = q->address + s->vma; |
1236 | ||
1237 | #ifdef R_IHCONST | |
1238 | /* The 29k const/consth reloc pair is a real kludge. The consth | |
89665c85 SC |
1239 | part doesn't have a symbol; it has an offset. So rebuilt |
1240 | that here. */ | |
9783e04a DM |
1241 | if (q->howto->type == R_IHCONST) |
1242 | n.r_symndx = q->addend; | |
1243 | else | |
780c477a | 1244 | #endif |
89665c85 SC |
1245 | if (q->sym_ptr_ptr) |
1246 | { | |
1247 | if (q->sym_ptr_ptr == bfd_abs_section_ptr->symbol_ptr_ptr) | |
1248 | /* This is a relocation relative to the absolute symbol. */ | |
1249 | n.r_symndx = -1; | |
1250 | else | |
1251 | { | |
1252 | n.r_symndx = get_index ((*(q->sym_ptr_ptr))); | |
1253 | /* Take notice if the symbol reloc points to a symbol | |
1254 | we don't have in our symbol table. What should we | |
1255 | do for this?? */ | |
1256 | if (n.r_symndx > obj_conv_table_size (abfd)) | |
1257 | abort (); | |
1258 | } | |
1259 | } | |
780c477a | 1260 | |
cd83759c | 1261 | #ifdef SWAP_OUT_RELOC_OFFSET |
9783e04a | 1262 | n.r_offset = q->addend; |
cd83759c | 1263 | #endif |
c26d7d17 | 1264 | |
0f268757 | 1265 | #ifdef SELECT_RELOC |
9783e04a DM |
1266 | /* Work out reloc type from what is required */ |
1267 | SELECT_RELOC (n, q->howto); | |
0f268757 | 1268 | #else |
9783e04a | 1269 | n.r_type = q->howto->type; |
0f268757 | 1270 | #endif |
9783e04a | 1271 | coff_swap_reloc_out (abfd, &n, &dst); |
791a3db4 ILT |
1272 | if (bfd_write ((PTR) & dst, 1, RELSZ, abfd) != RELSZ) |
1273 | return false; | |
9783e04a | 1274 | } |
0f268757 | 1275 | } |
791a3db4 ILT |
1276 | |
1277 | return true; | |
6f715d66 | 1278 | } |
7a8b18b6 SC |
1279 | |
1280 | /* Set flags and magic number of a coff file from architecture and machine | |
1281 | type. Result is true if we can represent the arch&type, false if not. */ | |
0f268757 | 1282 | |
9783e04a | 1283 | static boolean |
57a1867e DM |
1284 | coff_set_flags (abfd, magicp, flagsp) |
1285 | bfd * abfd; | |
1286 | unsigned *magicp; | |
1287 | unsigned short *flagsp; | |
6f715d66 | 1288 | { |
9783e04a | 1289 | switch (bfd_get_arch (abfd)) |
dc999ad9 | 1290 | { |
9783e04a DM |
1291 | #ifdef Z8KMAGIC |
1292 | case bfd_arch_z8k: | |
1293 | *magicp = Z8KMAGIC; | |
1294 | switch (bfd_get_mach (abfd)) | |
1295 | { | |
1296 | case bfd_mach_z8001: | |
1297 | *flagsp = F_Z8001; | |
1298 | break; | |
1299 | case bfd_mach_z8002: | |
1300 | *flagsp = F_Z8002; | |
1301 | break; | |
1302 | default: | |
1303 | return false; | |
1304 | } | |
1305 | return true; | |
dc999ad9 | 1306 | #endif |
0f268757 | 1307 | #ifdef I960ROMAGIC |
cbdc7909 | 1308 | |
3b4f1a5d | 1309 | case bfd_arch_i960: |
cbdc7909 | 1310 | |
6f715d66 | 1311 | { |
9783e04a | 1312 | unsigned flags; |
6f715d66 SC |
1313 | *magicp = I960ROMAGIC; |
1314 | /* | |
1315 | ((bfd_get_file_flags(abfd) & WP_TEXT) ? I960ROMAGIC : | |
1316 | I960RWMAGIC); FIXME??? | |
1317 | */ | |
9783e04a DM |
1318 | switch (bfd_get_mach (abfd)) |
1319 | { | |
1320 | case bfd_mach_i960_core: | |
1321 | flags = F_I960CORE; | |
1322 | break; | |
1323 | case bfd_mach_i960_kb_sb: | |
1324 | flags = F_I960KB; | |
1325 | break; | |
1326 | case bfd_mach_i960_mc: | |
1327 | flags = F_I960MC; | |
1328 | break; | |
1329 | case bfd_mach_i960_xa: | |
1330 | flags = F_I960XA; | |
1331 | break; | |
1332 | case bfd_mach_i960_ca: | |
1333 | flags = F_I960CA; | |
1334 | break; | |
1335 | case bfd_mach_i960_ka_sa: | |
1336 | flags = F_I960KA; | |
1337 | break; | |
b5b056fc KR |
1338 | /* start-sanitize-i960xl */ |
1339 | case bfd_mach_i960_xl: | |
1340 | flags = F_I960XL; | |
1341 | break; | |
1342 | /* end-sanitize-i960xl */ | |
9783e04a DM |
1343 | default: |
1344 | return false; | |
1345 | } | |
6f715d66 SC |
1346 | *flagsp = flags; |
1347 | return true; | |
1348 | } | |
9783e04a | 1349 | break; |
0f268757 | 1350 | #endif |
89665c85 SC |
1351 | #ifdef ARMMAGIC |
1352 | case bfd_arch_arm: | |
1353 | *magicp = ARMMAGIC; | |
1354 | return true; | |
1355 | #endif | |
20fdc627 | 1356 | #ifdef I386MAGIC |
9783e04a DM |
1357 | case bfd_arch_i386: |
1358 | *magicp = I386MAGIC; | |
c188b0be | 1359 | #ifdef LYNXOS |
9783e04a DM |
1360 | /* Just overwrite the usual value if we're doing Lynx. */ |
1361 | *magicp = LYNXCOFFMAGIC; | |
c188b0be | 1362 | #endif |
9783e04a DM |
1363 | return true; |
1364 | break; | |
20fdc627 | 1365 | #endif |
0f268757 | 1366 | #ifdef MC68MAGIC |
9783e04a | 1367 | case bfd_arch_m68k: |
97eb2f0c | 1368 | #ifdef APOLLOM68KMAGIC |
9783e04a | 1369 | *magicp = APOLLO_COFF_VERSION_NUMBER; |
97eb2f0c | 1370 | #else |
9783e04a | 1371 | *magicp = MC68MAGIC; |
c188b0be DM |
1372 | #endif |
1373 | #ifdef LYNXOS | |
9783e04a DM |
1374 | /* Just overwrite the usual value if we're doing Lynx. */ |
1375 | *magicp = LYNXCOFFMAGIC; | |
97eb2f0c | 1376 | #endif |
9783e04a DM |
1377 | return true; |
1378 | break; | |
0f268757 | 1379 | #endif |
cbdc7909 | 1380 | |
0f268757 | 1381 | #ifdef MC88MAGIC |
3b4f1a5d SC |
1382 | case bfd_arch_m88k: |
1383 | *magicp = MC88OMAGIC; | |
1384 | return true; | |
1385 | break; | |
1386 | #endif | |
1387 | #ifdef H8300MAGIC | |
1388 | case bfd_arch_h8300: | |
9783e04a DM |
1389 | switch (bfd_get_mach (abfd)) |
1390 | { | |
1391 | case bfd_mach_h8300: | |
1392 | *magicp = H8300MAGIC; | |
1393 | return true; | |
1394 | case bfd_mach_h8300h: | |
1395 | *magicp = H8300HMAGIC; | |
1396 | return true; | |
1397 | } | |
3b4f1a5d | 1398 | break; |
0f268757 | 1399 | #endif |
9faacb92 | 1400 | |
f135c692 | 1401 | #ifdef SH_ARCH_MAGIC_BIG |
9783e04a | 1402 | case bfd_arch_sh: |
f135c692 ILT |
1403 | if (abfd->xvec->byteorder_big_p) |
1404 | *magicp = SH_ARCH_MAGIC_BIG; | |
1405 | else | |
1406 | *magicp = SH_ARCH_MAGIC_LITTLE; | |
9faacb92 SC |
1407 | return true; |
1408 | break; | |
1409 | #endif | |
1410 | ||
c188b0be | 1411 | #ifdef SPARCMAGIC |
9783e04a DM |
1412 | case bfd_arch_sparc: |
1413 | *magicp = SPARCMAGIC; | |
c188b0be | 1414 | #ifdef LYNXOS |
9783e04a DM |
1415 | /* Just overwrite the usual value if we're doing Lynx. */ |
1416 | *magicp = LYNXCOFFMAGIC; | |
c188b0be | 1417 | #endif |
9783e04a DM |
1418 | return true; |
1419 | break; | |
c188b0be DM |
1420 | #endif |
1421 | ||
142ce43e SC |
1422 | #ifdef H8500MAGIC |
1423 | case bfd_arch_h8500: | |
1424 | *magicp = H8500MAGIC; | |
1425 | return true; | |
1426 | break; | |
1427 | #endif | |
41f50af0 | 1428 | #ifdef A29K_MAGIC_BIG |
3b4f1a5d SC |
1429 | case bfd_arch_a29k: |
1430 | if (abfd->xvec->byteorder_big_p) | |
9783e04a | 1431 | *magicp = A29K_MAGIC_BIG; |
3b4f1a5d | 1432 | else |
9783e04a | 1433 | *magicp = A29K_MAGIC_LITTLE; |
3b4f1a5d SC |
1434 | return true; |
1435 | break; | |
41f50af0 | 1436 | #endif |
cbdc7909 | 1437 | |
dc999ad9 | 1438 | #ifdef WE32KMAGIC |
9783e04a DM |
1439 | case bfd_arch_we32k: |
1440 | *magicp = WE32KMAGIC; | |
1441 | return true; | |
1442 | break; | |
dc999ad9 ILT |
1443 | #endif |
1444 | ||
cbdc7909 | 1445 | #ifdef U802TOCMAGIC |
9783e04a | 1446 | case bfd_arch_rs6000: |
09a28207 | 1447 | case bfd_arch_powerpc: |
9783e04a DM |
1448 | *magicp = U802TOCMAGIC; |
1449 | return true; | |
1450 | break; | |
cbdc7909 JG |
1451 | #endif |
1452 | ||
9783e04a DM |
1453 | default: /* Unknown architecture */ |
1454 | /* return false; -- fall through to "return false" below, to avoid | |
cbdc7909 | 1455 | "statement never reached" errors on the one below. */ |
9783e04a DM |
1456 | break; |
1457 | } | |
cbdc7909 | 1458 | |
6f715d66 SC |
1459 | return false; |
1460 | } | |
0f268757 SC |
1461 | |
1462 | ||
9783e04a | 1463 | static boolean |
57a1867e DM |
1464 | coff_set_arch_mach (abfd, arch, machine) |
1465 | bfd * abfd; | |
1466 | enum bfd_architecture arch; | |
1467 | unsigned long machine; | |
6f715d66 | 1468 | { |
9783e04a DM |
1469 | unsigned dummy1; |
1470 | unsigned short dummy2; | |
c16313f0 ILT |
1471 | |
1472 | if (! bfd_default_set_arch_mach (abfd, arch, machine)) | |
1473 | return false; | |
0d740984 SC |
1474 | |
1475 | if (arch != bfd_arch_unknown && | |
9783e04a | 1476 | coff_set_flags (abfd, &dummy1, &dummy2) != true) |
0d740984 | 1477 | return false; /* We can't represent this type */ |
c16313f0 | 1478 | |
0d740984 SC |
1479 | return true; /* We're easy ... */ |
1480 | } | |
0f268757 SC |
1481 | |
1482 | ||
1483 | /* Calculate the file position for each section. */ | |
1484 | ||
cbdc7909 | 1485 | static void |
57a1867e DM |
1486 | coff_compute_section_file_positions (abfd) |
1487 | bfd * abfd; | |
6f715d66 | 1488 | { |
9783e04a DM |
1489 | asection *current; |
1490 | asection *previous = (asection *) NULL; | |
1491 | file_ptr sofar = FILHSZ; | |
55c95b04 | 1492 | #ifndef I960 |
9783e04a | 1493 | file_ptr old_sofar; |
55c95b04 | 1494 | #endif |
69645d10 ILT |
1495 | unsigned int count; |
1496 | ||
9783e04a DM |
1497 | if (bfd_get_start_address (abfd)) |
1498 | { | |
1499 | /* A start address may have been added to the original file. In this | |
e98e6ec1 | 1500 | case it will need an optional header to record it. */ |
9783e04a DM |
1501 | abfd->flags |= EXEC_P; |
1502 | } | |
85e0c721 | 1503 | |
e98e6ec1 | 1504 | if (abfd->flags & EXEC_P) |
9783e04a | 1505 | sofar += AOUTSZ; |
cbdc7909 | 1506 | |
e98e6ec1 | 1507 | sofar += abfd->section_count * SCNHSZ; |
69645d10 | 1508 | for (current = abfd->sections, count = 1; |
9783e04a | 1509 | current != (asection *) NULL; |
69645d10 | 1510 | current = current->next, ++count) |
9783e04a | 1511 | { |
69645d10 | 1512 | current->target_index = count; |
cbdc7909 | 1513 | |
e98e6ec1 SC |
1514 | /* Only deal with sections which have contents */ |
1515 | if (!(current->flags & SEC_HAS_CONTENTS)) | |
9783e04a | 1516 | continue; |
cbdc7909 | 1517 | |
89665c85 SC |
1518 | #ifdef COFF_WITH_PE |
1519 | /* Do not include the .junk section. This is where we collect section | |
1520 | data which we don't need. This is mainly the MS .debug$ data which | |
1521 | stores codeview debug data. */ | |
1522 | if (strcmp (current->name, ".junk") == 0) | |
1523 | { | |
1524 | continue; | |
1525 | } | |
1526 | #endif | |
1527 | ||
e98e6ec1 SC |
1528 | /* Align the sections in the file to the same boundary on |
1529 | which they are aligned in virtual memory. I960 doesn't | |
1530 | do this (FIXME) so we can stay in sync with Intel. 960 | |
1531 | doesn't yet page from files... */ | |
0f268757 | 1532 | #ifndef I960 |
9783e04a DM |
1533 | { |
1534 | /* make sure this section is aligned on the right boundary - by | |
e98e6ec1 SC |
1535 | padding the previous section up if necessary */ |
1536 | ||
9783e04a DM |
1537 | old_sofar = sofar; |
1538 | sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); | |
1539 | if (previous != (asection *) NULL) | |
1540 | { | |
1541 | previous->_raw_size += sofar - old_sofar; | |
1542 | } | |
1543 | } | |
85e0c721 | 1544 | |
0f268757 | 1545 | #endif |
b5b056fc KR |
1546 | |
1547 | #ifdef COFF_PAGE_SIZE | |
1548 | /* In demand paged files the low order bits of the file offset | |
1549 | must match the low order bits of the virtual address. */ | |
e8fbe6d9 ILT |
1550 | if ((abfd->flags & D_PAGED) != 0 |
1551 | && (current->flags & SEC_ALLOC) != 0) | |
b5b056fc KR |
1552 | sofar += (current->vma - sofar) % COFF_PAGE_SIZE; |
1553 | #endif | |
cbdc7909 | 1554 | |
e98e6ec1 | 1555 | current->filepos = sofar; |
85e0c721 | 1556 | |
5e167886 KR |
1557 | sofar += current->_raw_size; |
1558 | #ifndef I960 | |
e98e6ec1 | 1559 | /* make sure that this section is of the right size too */ |
9783e04a DM |
1560 | old_sofar = sofar; |
1561 | sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); | |
1562 | current->_raw_size += sofar - old_sofar; | |
5e167886 | 1563 | #endif |
85e0c721 | 1564 | |
35d835c4 JK |
1565 | #ifdef _LIB |
1566 | /* Force .lib sections to start at zero. The vma is then | |
1567 | incremented in coff_set_section_contents. This is right for | |
1568 | SVR3.2. */ | |
1569 | if (strcmp (current->name, _LIB) == 0) | |
1570 | bfd_set_section_vma (abfd, current, 0); | |
1571 | #endif | |
1572 | ||
e98e6ec1 | 1573 | previous = current; |
85e0c721 | 1574 | } |
89665c85 SC |
1575 | #ifdef COFF_WITH_PE |
1576 | /* Normally, the starting location for the symbol table will be at the end | |
1577 | of the last section. However, when dealing with NT, the last section | |
1578 | must be as long as its size rounded up to the next page (0x1000). */ | |
1579 | sofar = ((sofar + NT_FILE_ALIGNMENT - 1) / | |
1580 | NT_FILE_ALIGNMENT) * NT_FILE_ALIGNMENT; | |
1581 | #endif | |
1582 | ||
9783e04a | 1583 | obj_relocbase (abfd) = sofar; |
69645d10 | 1584 | abfd->output_has_begun = true; |
89665c85 | 1585 | |
6f715d66 | 1586 | } |
0f268757 | 1587 | |
9783e04a DM |
1588 | #ifndef RS6000COFF_C |
1589 | ||
8070f29d KR |
1590 | /* If .file, .text, .data, .bss symbols are missing, add them. */ |
1591 | /* @@ Should we only be adding missing symbols, or overriding the aux | |
1592 | values for existing section symbols? */ | |
9783e04a | 1593 | static boolean |
8070f29d KR |
1594 | coff_add_missing_symbols (abfd) |
1595 | bfd *abfd; | |
1596 | { | |
1597 | unsigned int nsyms = bfd_get_symcount (abfd); | |
1598 | asymbol **sympp = abfd->outsymbols; | |
1599 | asymbol **sympp2; | |
1600 | unsigned int i; | |
1601 | int need_text = 1, need_data = 1, need_bss = 1, need_file = 1; | |
0f268757 | 1602 | |
8070f29d KR |
1603 | for (i = 0; i < nsyms; i++) |
1604 | { | |
1605 | coff_symbol_type *csym = coff_symbol_from (abfd, sympp[i]); | |
1606 | CONST char *name; | |
9783e04a | 1607 | if (csym) |
8070f29d | 1608 | { |
9783e04a DM |
1609 | /* only do this if there is a coff representation of the input |
1610 | symbol */ | |
1611 | if (csym->native && csym->native->u.syment.n_sclass == C_FILE) | |
1612 | { | |
1613 | need_file = 0; | |
1614 | continue; | |
1615 | } | |
1616 | name = csym->symbol.name; | |
1617 | if (!name) | |
1618 | continue; | |
1619 | if (!strcmp (name, _TEXT)) | |
1620 | need_text = 0; | |
97eb2f0c | 1621 | #ifdef APOLLO_M68 |
9783e04a DM |
1622 | else if (!strcmp (name, ".wtext")) |
1623 | need_text = 0; | |
97eb2f0c | 1624 | #endif |
9783e04a DM |
1625 | else if (!strcmp (name, _DATA)) |
1626 | need_data = 0; | |
1627 | else if (!strcmp (name, _BSS)) | |
1628 | need_bss = 0; | |
1629 | } | |
8070f29d KR |
1630 | } |
1631 | /* Now i == bfd_get_symcount (abfd). */ | |
1632 | /* @@ For now, don't deal with .file symbol. */ | |
1633 | need_file = 0; | |
1634 | ||
1635 | if (!need_text && !need_data && !need_bss && !need_file) | |
9783e04a | 1636 | return true; |
8070f29d | 1637 | nsyms += need_text + need_data + need_bss + need_file; |
9783e04a DM |
1638 | sympp2 = (asymbol **) bfd_alloc_by_size_t (abfd, nsyms * sizeof (asymbol *)); |
1639 | if (!sympp2) | |
1640 | { | |
57a1867e | 1641 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
1642 | return false; |
1643 | } | |
8070f29d KR |
1644 | memcpy (sympp2, sympp, i * sizeof (asymbol *)); |
1645 | if (need_file) | |
1646 | { | |
1647 | /* @@ Generate fake .file symbol, in sympp2[i], and increment i. */ | |
1648 | abort (); | |
1649 | } | |
1650 | if (need_text) | |
1651 | sympp2[i++] = coff_section_symbol (abfd, _TEXT); | |
1652 | if (need_data) | |
1653 | sympp2[i++] = coff_section_symbol (abfd, _DATA); | |
1654 | if (need_bss) | |
1655 | sympp2[i++] = coff_section_symbol (abfd, _BSS); | |
9465d03e | 1656 | BFD_ASSERT (i == nsyms); |
8070f29d | 1657 | bfd_set_symtab (abfd, sympp2, nsyms); |
9783e04a | 1658 | return true; |
8070f29d | 1659 | } |
0f268757 | 1660 | |
9783e04a DM |
1661 | #endif /* ! defined (RS6000COFF_C) */ |
1662 | ||
89665c85 SC |
1663 | #ifdef COFF_WITH_PE |
1664 | static void add_data_entry (abfd, aout, idx, name) | |
1665 | bfd *abfd; | |
1666 | struct internal_aouthdr *aout; | |
1667 | int idx; | |
1668 | char *name; | |
1669 | { | |
1670 | asection *sec = bfd_get_section_by_name (abfd, name); | |
1671 | ||
1672 | /* add import directory information if it exists */ | |
1673 | if (sec != NULL) | |
1674 | { | |
1675 | aout->DataDirectory[idx].VirtualAddress = sec->lma - NT_IMAGE_BASE; | |
1676 | aout->DataDirectory[idx].Size = sec->_raw_size; | |
1677 | } | |
1678 | } | |
1679 | #endif | |
1680 | ||
0f268757 SC |
1681 | /* SUPPRESS 558 */ |
1682 | /* SUPPRESS 529 */ | |
9783e04a | 1683 | static boolean |
57a1867e DM |
1684 | coff_write_object_contents (abfd) |
1685 | bfd * abfd; | |
e98e6ec1 | 1686 | { |
9783e04a | 1687 | asection *current; |
9783e04a DM |
1688 | boolean hasrelocs = false; |
1689 | boolean haslinno = false; | |
1690 | file_ptr reloc_base; | |
1691 | file_ptr lineno_base; | |
1692 | file_ptr sym_base; | |
9783e04a DM |
1693 | unsigned long reloc_size = 0; |
1694 | unsigned long lnno_size = 0; | |
1695 | asection *text_sec = NULL; | |
1696 | asection *data_sec = NULL; | |
1697 | asection *bss_sec = NULL; | |
89665c85 | 1698 | bfd_vma end_of_image = 0; |
cbdc7909 | 1699 | |
e98e6ec1 SC |
1700 | struct internal_filehdr internal_f; |
1701 | struct internal_aouthdr internal_a; | |
cbdc7909 | 1702 | |
57a1867e | 1703 | bfd_set_error (bfd_error_system_call); |
6590a8c9 | 1704 | |
9783e04a | 1705 | if (abfd->output_has_begun == false) |
69645d10 | 1706 | coff_compute_section_file_positions (abfd); |
cbdc7909 | 1707 | |
9783e04a | 1708 | reloc_base = obj_relocbase (abfd); |
cbdc7909 | 1709 | |
0f268757 SC |
1710 | /* Make a pass through the symbol table to count line number entries and |
1711 | put them into the correct asections */ | |
cbdc7909 | 1712 | |
9783e04a | 1713 | lnno_size = coff_count_linenumbers (abfd) * LINESZ; |
cbdc7909 | 1714 | |
0f268757 | 1715 | /* Work out the size of the reloc and linno areas */ |
cbdc7909 | 1716 | |
e98e6ec1 | 1717 | for (current = abfd->sections; current != NULL; current = |
9783e04a | 1718 | current->next) |
69645d10 | 1719 | reloc_size += current->reloc_count * RELSZ; |
cbdc7909 | 1720 | |
0f268757 SC |
1721 | lineno_base = reloc_base + reloc_size; |
1722 | sym_base = lineno_base + lnno_size; | |
cbdc7909 | 1723 | |
0f268757 | 1724 | /* Indicate in each section->line_filepos its actual file address */ |
e98e6ec1 | 1725 | for (current = abfd->sections; current != NULL; current = |
9783e04a | 1726 | current->next) |
e98e6ec1 | 1727 | { |
69645d10 | 1728 | if (current->lineno_count) |
9783e04a | 1729 | { |
69645d10 ILT |
1730 | current->line_filepos = lineno_base; |
1731 | current->moving_line_filepos = lineno_base; | |
1732 | lineno_base += current->lineno_count * LINESZ; | |
1733 | } | |
1734 | else | |
1735 | { | |
1736 | current->line_filepos = 0; | |
1737 | } | |
1738 | if (current->reloc_count) | |
1739 | { | |
1740 | current->rel_filepos = reloc_base; | |
1741 | reloc_base += current->reloc_count * RELSZ; | |
1742 | } | |
1743 | else | |
1744 | { | |
1745 | current->rel_filepos = 0; | |
e98e6ec1 | 1746 | } |
0f268757 | 1747 | } |
9783e04a | 1748 | |
e98e6ec1 SC |
1749 | /* Write section headers to the file. */ |
1750 | internal_f.f_nscns = 0; | |
89665c85 SC |
1751 | |
1752 | #if 0 | |
791a3db4 ILT |
1753 | if (bfd_seek (abfd, |
1754 | (file_ptr) ((abfd->flags & EXEC_P) ? | |
89665c85 SC |
1755 | (EXTRA_NT_HDRSZ + FILHSZ + AOUTSZ) : |
1756 | (EXTRA_NT_HDRSZ + FILHSZ)), | |
791a3db4 ILT |
1757 | SEEK_SET) |
1758 | != 0) | |
89665c85 SC |
1759 | #else |
1760 | if (bfd_seek (abfd, | |
1761 | (file_ptr) ((abfd->flags & EXEC_P) ? | |
1762 | (FILHSZ + AOUTSZ) : FILHSZ), | |
1763 | SEEK_SET) | |
1764 | != 0) | |
1765 | #endif | |
1766 | return false; | |
cbdc7909 | 1767 | |
9783e04a | 1768 | { |
9783e04a DM |
1769 | for (current = abfd->sections; |
1770 | current != NULL; | |
1771 | current = current->next) | |
e98e6ec1 | 1772 | { |
9783e04a | 1773 | struct internal_scnhdr section; |
69645d10 | 1774 | |
89665c85 SC |
1775 | #ifdef COFF_WITH_PE |
1776 | /* Do not include the .junk section. This is where we collect section | |
1777 | data which we don't need. This is mainly the MS .debug$ data which | |
1778 | stores codeview debug data. */ | |
1779 | if (strcmp (current->name, ".junk") == 0) | |
1780 | { | |
1781 | continue; | |
1782 | } | |
1783 | #endif | |
69645d10 ILT |
1784 | internal_f.f_nscns++; |
1785 | strncpy (&(section.s_name[0]), current->name, 8); | |
b26059aa | 1786 | #ifdef _LIB |
69645d10 | 1787 | /* Always set s_vaddr of .lib to 0. This is right for SVR3.2 |
b26059aa | 1788 | Ian Taylor <ian@cygnus.com>. */ |
69645d10 ILT |
1789 | if (strcmp (current->name, _LIB) == 0) |
1790 | section.s_vaddr = 0; | |
1791 | else | |
1792 | #endif | |
1793 | section.s_vaddr = current->lma; | |
1794 | section.s_paddr = current->lma; | |
1795 | section.s_size = current->_raw_size; | |
89665c85 SC |
1796 | |
1797 | /* Remember the address of the end of the last section */ | |
1798 | ||
1799 | if (current->lma + current->_raw_size > end_of_image) | |
1800 | end_of_image = current->lma + current->_raw_size ; | |
1801 | ||
69645d10 ILT |
1802 | /* |
1803 | If this section has no size or is unloadable then the scnptr | |
1804 | will be 0 too | |
1805 | */ | |
1806 | if (current->_raw_size == 0 || | |
1807 | (current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
1808 | { | |
1809 | section.s_scnptr = 0; | |
1810 | } | |
1811 | else | |
1812 | { | |
1813 | section.s_scnptr = current->filepos; | |
1814 | } | |
1815 | section.s_relptr = current->rel_filepos; | |
1816 | section.s_lnnoptr = current->line_filepos; | |
1817 | section.s_nreloc = current->reloc_count; | |
1818 | section.s_nlnno = current->lineno_count; | |
1819 | if (current->reloc_count != 0) | |
1820 | hasrelocs = true; | |
1821 | if (current->lineno_count != 0) | |
1822 | haslinno = true; | |
1823 | ||
1824 | section.s_flags = sec_to_styp_flags (current->name, current->flags); | |
1825 | ||
1826 | if (!strcmp (current->name, _TEXT)) | |
1827 | { | |
1828 | text_sec = current; | |
1829 | } | |
1830 | else if (!strcmp (current->name, _DATA)) | |
1831 | { | |
1832 | data_sec = current; | |
b26059aa | 1833 | #ifdef TWO_DATA_SECS |
69645d10 ILT |
1834 | } |
1835 | else if (!strcmp (current->name, ".data2")) | |
1836 | { | |
1837 | data_sec = current; | |
b26059aa | 1838 | #endif /* TWO_DATA_SECS */ |
69645d10 ILT |
1839 | } |
1840 | else if (!strcmp (current->name, _BSS)) | |
1841 | { | |
1842 | bss_sec = current; | |
1843 | } | |
cbdc7909 | 1844 | |
0f268757 | 1845 | #ifdef I960 |
69645d10 ILT |
1846 | section.s_align = (current->alignment_power |
1847 | ? 1 << current->alignment_power | |
1848 | : 0); | |
0f268757 SC |
1849 | |
1850 | #endif | |
69645d10 ILT |
1851 | { |
1852 | SCNHDR buff; | |
e98e6ec1 | 1853 | |
89665c85 SC |
1854 | #ifdef WINDOWS_NT |
1855 | /* suppress output of the sections if they are null. ld includes | |
1856 | the bss and data sections even if there is no size assigned | |
1857 | to them. NT loader doesn't like it if these section headers are | |
1858 | included if the sections themselves are not needed */ | |
1859 | if (section.s_size == 0) | |
1860 | internal_f.f_nscns--; | |
1861 | else | |
1862 | { | |
1863 | coff_swap_scnhdr_out (abfd, §ion, &buff); | |
1864 | if (bfd_write ((PTR) (&buff), 1, SCNHSZ, abfd) != SCNHSZ) | |
1865 | return false; | |
1866 | } | |
1867 | #else | |
1868 | if (coff_swap_scnhdr_out (abfd, §ion, &buff) == 0 | |
1869 | || bfd_write ((PTR) (&buff), 1, SCNHSZ, abfd) != SCNHSZ) | |
69645d10 | 1870 | return false; |
89665c85 | 1871 | #endif |
0f268757 | 1872 | |
69645d10 | 1873 | } |
0f268757 | 1874 | } |
9783e04a | 1875 | } |
e98e6ec1 | 1876 | |
0f268757 SC |
1877 | |
1878 | /* OK, now set up the filehdr... */ | |
e98e6ec1 SC |
1879 | |
1880 | /* Don't include the internal abs section in the section count */ | |
1881 | ||
0f268757 | 1882 | /* |
89665c85 SC |
1883 | We will NOT put a fucking timestamp in the header here. Every time you |
1884 | put it back, I will come in and take it out again. I'm sorry. This | |
1885 | field does not belong here. We fill it with a 0 so it compares the | |
1886 | same but is not a reasonable time. -- gnu@cygnus.com | |
1887 | */ | |
0f268757 | 1888 | internal_f.f_timdat = 0; |
0f268757 | 1889 | |
0f268757 SC |
1890 | internal_f.f_flags = 0; |
1891 | ||
1892 | if (abfd->flags & EXEC_P) | |
9783e04a | 1893 | internal_f.f_opthdr = AOUTSZ; |
0f268757 | 1894 | else |
9783e04a | 1895 | internal_f.f_opthdr = 0; |
0f268757 SC |
1896 | |
1897 | if (!hasrelocs) | |
9783e04a | 1898 | internal_f.f_flags |= F_RELFLG; |
0f268757 | 1899 | if (!haslinno) |
9783e04a | 1900 | internal_f.f_flags |= F_LNNO; |
0f268757 | 1901 | if (abfd->flags & EXEC_P) |
9783e04a | 1902 | internal_f.f_flags |= F_EXEC; |
a0f3f080 | 1903 | |
0f268757 | 1904 | if (!abfd->xvec->byteorder_big_p) |
9783e04a DM |
1905 | internal_f.f_flags |= F_AR32WR; |
1906 | else | |
1907 | internal_f.f_flags |= F_AR32W; | |
a0f3f080 | 1908 | |
89665c85 SC |
1909 | #ifdef COFF_WITH_PE |
1910 | /* assign other filehdr fields for DOS header and NT signature */ | |
1911 | internal_f.e_magic = DOSMAGIC; | |
1912 | internal_f.e_cblp = 0x90; | |
1913 | internal_f.e_cp = 0x3; | |
1914 | internal_f.e_crlc = 0x0; | |
1915 | internal_f.e_cparhdr = 0x4; | |
1916 | internal_f.e_minalloc = 0x0; | |
1917 | internal_f.e_maxalloc = 0xffff; | |
1918 | internal_f.e_ss = 0x0; | |
1919 | internal_f.e_sp = 0xb8; | |
1920 | internal_f.e_csum = 0x0; | |
1921 | internal_f.e_ip = 0x0; | |
1922 | internal_f.e_cs = 0x0; | |
1923 | internal_f.e_lfarlc = 0x40; | |
1924 | internal_f.e_ovno = 0x0; | |
1925 | { | |
1926 | int idx; | |
1927 | for (idx=0; idx < 4; idx++) | |
1928 | internal_f.e_res[idx] = 0x0; | |
1929 | } | |
1930 | internal_f.e_oemid = 0x0; | |
1931 | internal_f.e_oeminfo = 0x0; | |
1932 | { | |
1933 | int idx; | |
1934 | for (idx=0; idx < 10; idx++) | |
1935 | internal_f.e_res2[idx] = 0x0; | |
1936 | } | |
1937 | internal_f.e_lfanew = 0x80; | |
1938 | ||
1939 | /* this next collection of data are mostly just characters. It appears | |
1940 | to be constant within the headers put on NT exes */ | |
1941 | internal_f.dos_message[0] = 0x0eba1f0e; | |
1942 | internal_f.dos_message[1] = 0xcd09b400; | |
1943 | internal_f.dos_message[2] = 0x4c01b821; | |
1944 | internal_f.dos_message[3] = 0x685421cd; | |
1945 | internal_f.dos_message[4] = 0x70207369; | |
1946 | internal_f.dos_message[5] = 0x72676f72; | |
1947 | internal_f.dos_message[6] = 0x63206d61; | |
1948 | internal_f.dos_message[7] = 0x6f6e6e61; | |
1949 | internal_f.dos_message[8] = 0x65622074; | |
1950 | internal_f.dos_message[9] = 0x6e757220; | |
1951 | internal_f.dos_message[10] = 0x206e6920; | |
1952 | internal_f.dos_message[11] = 0x20534f44; | |
1953 | internal_f.dos_message[12] = 0x65646f6d; | |
1954 | internal_f.dos_message[13] = 0x0a0d0d2e; | |
1955 | internal_f.dos_message[14] = 0x24; | |
1956 | internal_f.dos_message[15] = 0x0; | |
1957 | internal_f.nt_signature = NT_SIGNATURE; | |
1958 | #endif | |
1959 | ||
1960 | ||
0f268757 | 1961 | /* |
89665c85 SC |
1962 | FIXME, should do something about the other byte orders and |
1963 | architectures. | |
1964 | */ | |
0f268757 | 1965 | |
ab31ae53 KR |
1966 | memset (&internal_a, 0, sizeof internal_a); |
1967 | ||
0f268757 SC |
1968 | /* Set up architecture-dependent stuff */ |
1969 | ||
9783e04a DM |
1970 | { |
1971 | unsigned int magic = 0; | |
1972 | unsigned short flags = 0; | |
1973 | coff_set_flags (abfd, &magic, &flags); | |
1974 | internal_f.f_magic = magic; | |
1975 | internal_f.f_flags |= flags; | |
1976 | /* ...and the "opt"hdr... */ | |
0f268757 | 1977 | |
cbdc7909 | 1978 | #ifdef A29K |
9783e04a DM |
1979 | #ifdef ULTRA3 /* NYU's machine */ |
1980 | /* FIXME: This is a bogus check. I really want to see if there | |
89665c85 SC |
1981 | * is a .shbss or a .shdata section, if so then set the magic |
1982 | * number to indicate a shared data executable. | |
1983 | */ | |
9783e04a | 1984 | if (internal_f.f_nscns >= 7) |
89665c85 | 1985 | internal_a.magic = SHMAGIC; /* Shared magic */ |
9783e04a DM |
1986 | else |
1987 | #endif /* ULTRA3 */ | |
89665c85 | 1988 | internal_a.magic = NMAGIC; /* Assume separate i/d */ |
41f50af0 | 1989 | #define __A_MAGIC_SET__ |
9783e04a | 1990 | #endif /* A29K */ |
0f268757 | 1991 | #ifdef I960 |
9783e04a | 1992 | internal_a.magic = (magic == I960ROMAGIC ? NMAGIC : OMAGIC); |
41f50af0 | 1993 | #define __A_MAGIC_SET__ |
9783e04a | 1994 | #endif /* I960 */ |
0f268757 | 1995 | #if M88 |
41f50af0 | 1996 | #define __A_MAGIC_SET__ |
9783e04a DM |
1997 | internal_a.magic = PAGEMAGICBCS; |
1998 | #endif /* M88 */ | |
41f50af0 | 1999 | |
97eb2f0c KR |
2000 | #if APOLLO_M68 |
2001 | #define __A_MAGIC_SET__ | |
9783e04a | 2002 | internal_a.magic = APOLLO_COFF_VERSION_NUMBER; |
97eb2f0c KR |
2003 | #endif |
2004 | ||
e8fbe6d9 | 2005 | #if defined(M68) || defined(WE32K) || defined(M68K) |
41f50af0 | 2006 | #define __A_MAGIC_SET__ |
e8fbe6d9 ILT |
2007 | #if defined(LYNXOS) |
2008 | internal_a.magic = LYNXCOFFMAGIC; | |
89665c85 SC |
2009 | #endif /* LYNXOS */ |
2010 | #endif /* M68 || WE32K || M68K */ | |
8ad2a31d | 2011 | |
89665c85 SC |
2012 | #if defined(ARM) |
2013 | #define __A_MAGIC_SET__ | |
2014 | internal_a.magic = ZMAGIC; | |
2015 | #endif | |
e8fbe6d9 | 2016 | #if defined(I386) |
9783e04a | 2017 | #define __A_MAGIC_SET__ |
e8fbe6d9 ILT |
2018 | #if defined(LYNXOS) |
2019 | internal_a.magic = LYNXCOFFMAGIC; | |
89665c85 | 2020 | #else /* LYNXOS */ |
9783e04a | 2021 | internal_a.magic = ZMAGIC; |
e8fbe6d9 | 2022 | #endif /* LYNXOS */ |
8ad2a31d | 2023 | #endif /* I386 */ |
41f50af0 | 2024 | |
e8fbe6d9 ILT |
2025 | #if defined(SPARC) |
2026 | #define __A_MAGIC_SET__ | |
2027 | #if defined(LYNXOS) | |
89665c85 SC |
2028 | internal_a.magic = LYNXCOFFMAGIC; |
2029 | #endif /* LYNXOS */ | |
2030 | #endif /* SPARC */ | |
e8fbe6d9 | 2031 | |
cbdc7909 JG |
2032 | #if RS6000COFF_C |
2033 | #define __A_MAGIC_SET__ | |
9783e04a | 2034 | internal_a.magic = (abfd->flags & D_PAGED) ? RS6K_AOUTHDR_ZMAGIC : |
89665c85 SC |
2035 | (abfd->flags & WP_TEXT) ? RS6K_AOUTHDR_NMAGIC : |
2036 | RS6K_AOUTHDR_OMAGIC; | |
cbdc7909 JG |
2037 | #endif |
2038 | ||
41f50af0 | 2039 | #ifndef __A_MAGIC_SET__ |
9783e04a | 2040 | #include "Your aouthdr magic number is not being set!" |
41f50af0 | 2041 | #else |
9783e04a | 2042 | #undef __A_MAGIC_SET__ |
0f268757 | 2043 | #endif |
9783e04a | 2044 | } |
0f268757 | 2045 | /* Now should write relocs, strings, syms */ |
9783e04a DM |
2046 | obj_sym_filepos (abfd) = sym_base; |
2047 | ||
2048 | if (bfd_get_symcount (abfd) != 0) | |
2049 | { | |
89665c85 | 2050 | int firstundef; |
9783e04a DM |
2051 | #ifndef RS6000COFF_C |
2052 | if (!coff_add_missing_symbols (abfd)) | |
2053 | return false; | |
2054 | #endif | |
89665c85 | 2055 | if (!coff_renumber_symbols (abfd, &firstundef)) |
9783e04a DM |
2056 | return false; |
2057 | coff_mangle_symbols (abfd); | |
bfe8224f ILT |
2058 | if (! coff_write_symbols (abfd)) |
2059 | return false; | |
791a3db4 ILT |
2060 | if (! coff_write_linenumbers (abfd)) |
2061 | return false; | |
89665c85 | 2062 | if (! coff_write_relocs (abfd, firstundef)) |
9783e04a | 2063 | return false; |
e98e6ec1 | 2064 | } |
6ceff8e7 ILT |
2065 | |
2066 | /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF | |
2067 | backend linker, and obj_raw_syment_count is not valid until after | |
2068 | coff_write_symbols is called. */ | |
2069 | if (obj_raw_syment_count (abfd) != 0) | |
2070 | internal_f.f_symptr = sym_base; | |
2071 | else | |
2072 | { | |
2073 | internal_f.f_symptr = 0; | |
2074 | internal_f.f_flags |= F_LSYMS; | |
2075 | } | |
2076 | ||
9783e04a DM |
2077 | if (text_sec) |
2078 | { | |
2079 | internal_a.tsize = bfd_get_section_size_before_reloc (text_sec); | |
89665c85 SC |
2080 | internal_a.text_start = internal_a.tsize ? |
2081 | (text_sec->vma - IMAGE_BASE) : 0; | |
e98e6ec1 | 2082 | } |
9783e04a DM |
2083 | if (data_sec) |
2084 | { | |
2085 | internal_a.dsize = bfd_get_section_size_before_reloc (data_sec); | |
89665c85 SC |
2086 | internal_a.data_start = internal_a.dsize ? |
2087 | (data_sec->vma - IMAGE_BASE) : 0; | |
e98e6ec1 | 2088 | } |
9783e04a DM |
2089 | if (bss_sec) |
2090 | { | |
2091 | internal_a.bsize = bfd_get_section_size_before_reloc (bss_sec); | |
e98e6ec1 | 2092 | } |
0f268757 | 2093 | |
89665c85 | 2094 | internal_a.entry = bfd_get_start_address (abfd) - IMAGE_BASE; |
69645d10 | 2095 | internal_f.f_nsyms = obj_raw_syment_count (abfd); |
0f268757 | 2096 | |
89665c85 SC |
2097 | #ifdef COFF_WITH_PE /* write all of the other optional header data */ |
2098 | /* Note; the entries for subsystem, stack reserve, stack commit, heap reserve | |
2099 | and heap commit may be supplied on the command line via the -subsystem, | |
2100 | -stack and/or -heap switches. This data is initially stored in variable | |
2101 | link_info. This is eventually passed to the bfd (from ld) in (cofflink.c) | |
2102 | _bfd_coff_final_link. Once this function gets it, we copy it into variables | |
2103 | NT_subsystem and NT_stack_heap which are defined in internal.h. With | |
2104 | respect to the stack/heap reserve/commit parameters, if nothing has been | |
2105 | defined for these, the input values will be '0' (i.e. the values stored | |
2106 | in NT_stack_heap) will be 0. */ | |
2107 | ||
2108 | internal_a.ImageBase = NT_IMAGE_BASE; /* 0x400000 */ | |
2109 | internal_a.SectionAlignment = NT_SECTION_ALIGNMENT; /* 0x1000 */ | |
2110 | internal_a.FileAlignment = NT_FILE_ALIGNMENT; /* 0x200 */ | |
2111 | internal_a.MajorOperatingSystemVersion = 1; | |
2112 | internal_a.MinorOperatingSystemVersion = 0; | |
2113 | internal_a.MajorImageVersion = 0; | |
2114 | internal_a.MinorImageVersion = 0; | |
2115 | internal_a.MajorSubsystemVersion = 3; | |
2116 | internal_a.MinorSubsystemVersion = 0xA; | |
2117 | internal_a.Reserved1 = 0; | |
2118 | /* Virtual start address, take virtual start address of last section, | |
2119 | add its physical size and round up the next page (NT_SECTION_ALIGNMENT). | |
2120 | An assumption has been made that the sections stored in the abfd | |
2121 | structure are in order and that I have successfully saved the last | |
2122 | section's address and size. */ | |
2123 | ||
2124 | internal_a.SizeOfImage = | |
2125 | (end_of_image - NT_IMAGE_BASE + NT_SECTION_ALIGNMENT - 1) | |
2126 | & ~ (NT_SECTION_ALIGNMENT-1); | |
2127 | ||
2128 | /* Start of .text section will do here since it is the first section after | |
2129 | the headers. Note that NT_IMAGE_BASE has already been removed above */ | |
2130 | internal_a.SizeOfHeaders = internal_a.text_start; | |
2131 | internal_a.CheckSum = 0; | |
2132 | switch (NT_subsystem) | |
2133 | { | |
2134 | /* The possible values are: | |
2135 | 1 - NATIVE Doesn't require a subsystem | |
2136 | 2 - WINDOWS_GUI runs in Windows GUI subsystem | |
2137 | 3 - WINDOWS_CUI runs in Windows char sub. (console app) | |
2138 | 5 - OS2_CUI runs in OS/2 character subsystem | |
2139 | 7 - POSIX_CUI runs in Posix character subsystem */ | |
2140 | case native: | |
2141 | internal_a.Subsystem = 1; | |
2142 | break; | |
2143 | case windows: | |
2144 | internal_a.Subsystem = 2; | |
2145 | break; | |
2146 | case console: | |
2147 | internal_a.Subsystem = 3; | |
2148 | break; | |
2149 | case os2: | |
2150 | internal_a.Subsystem = 5; | |
2151 | break; | |
2152 | case posix: | |
2153 | internal_a.Subsystem = 7; | |
2154 | break; | |
2155 | default: | |
2156 | internal_a.Subsystem = 3; | |
2157 | } | |
2158 | internal_a.DllCharacteristics = 0; | |
2159 | if (NT_stack_heap.stack_defined) | |
2160 | { | |
2161 | internal_a.SizeOfStackReserve = NT_stack_heap.stack_reserve; | |
2162 | /* since commit is an optional parameter, verify that it is non-zero */ | |
2163 | if (NT_stack_heap.stack_commit > 0) | |
2164 | internal_a.SizeOfStackCommit = NT_stack_heap.stack_commit; | |
2165 | else | |
2166 | internal_a.SizeOfStackCommit = NT_DEF_COMMIT; | |
2167 | } | |
2168 | else | |
2169 | { | |
2170 | internal_a.SizeOfStackReserve = NT_DEF_RESERVE; /* 0x100000 */ | |
2171 | internal_a.SizeOfStackCommit = NT_DEF_COMMIT; /* 0x1000 */ | |
2172 | } | |
2173 | if (NT_stack_heap.heap_defined) | |
2174 | { | |
2175 | internal_a.SizeOfHeapReserve = NT_stack_heap.heap_reserve; | |
2176 | /* since commit is an optional parameter, verify that it is non-zero */ | |
2177 | if (NT_stack_heap.heap_commit > 0) | |
2178 | internal_a.SizeOfHeapCommit = NT_stack_heap.heap_commit; | |
2179 | else | |
2180 | internal_a.SizeOfHeapCommit = NT_DEF_COMMIT; | |
2181 | } | |
2182 | else | |
2183 | { | |
2184 | internal_a.SizeOfHeapReserve = NT_DEF_RESERVE; /* 0x100000 */ | |
2185 | internal_a.SizeOfHeapCommit = NT_DEF_COMMIT; /* 0x1000 */ | |
2186 | } | |
2187 | internal_a.LoaderFlags = 0; | |
2188 | internal_a.NumberOfRvaAndSizes = IMAGE_NUMBEROF_DIRECTORY_ENTRIES; /* 0x10 */ | |
2189 | ||
2190 | /* first null out all data directory entries .. */ | |
2191 | memset (internal_a.DataDirectory, sizeof (internal_a.DataDirectory), 0); | |
2192 | ||
2193 | add_data_entry (abfd, &internal_a, 0, ".edata"); | |
2194 | add_data_entry (abfd, &internal_a, 1, ".idata"); | |
2195 | add_data_entry (abfd, &internal_a, 2, ".rsrc"); | |
2196 | add_data_entry (abfd, &internal_a, 5, ".reloc"); | |
2197 | ||
2198 | ||
2199 | ||
2200 | #endif | |
2201 | ||
0f268757 | 2202 | /* now write them */ |
9783e04a DM |
2203 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) |
2204 | return false; | |
2205 | { | |
2206 | FILHDR buff; | |
2207 | coff_swap_filehdr_out (abfd, (PTR) & internal_f, (PTR) & buff); | |
791a3db4 ILT |
2208 | if (bfd_write ((PTR) & buff, 1, FILHSZ, abfd) != FILHSZ) |
2209 | return false; | |
9783e04a DM |
2210 | } |
2211 | if (abfd->flags & EXEC_P) | |
2212 | { | |
e98e6ec1 | 2213 | AOUTHDR buff; |
9783e04a | 2214 | coff_swap_aouthdr_out (abfd, (PTR) & internal_a, (PTR) & buff); |
791a3db4 ILT |
2215 | if (bfd_write ((PTR) & buff, 1, AOUTSZ, abfd) != AOUTSZ) |
2216 | return false; | |
e98e6ec1 | 2217 | } |
89665c85 | 2218 | |
0f268757 | 2219 | return true; |
6f715d66 SC |
2220 | } |
2221 | ||
9783e04a | 2222 | static boolean |
57a1867e DM |
2223 | coff_set_section_contents (abfd, section, location, offset, count) |
2224 | bfd * abfd; | |
2225 | sec_ptr section; | |
2226 | PTR location; | |
2227 | file_ptr offset; | |
2228 | bfd_size_type count; | |
0f268757 | 2229 | { |
9783e04a DM |
2230 | if (abfd->output_has_begun == false) /* set by bfd.c handler */ |
2231 | coff_compute_section_file_positions (abfd); | |
cbdc7909 | 2232 | |
075caafd | 2233 | #ifdef _LIB |
9783e04a | 2234 | /* If this is a .lib section, bump the vma address so that it |
075caafd ILT |
2235 | winds up being the number of .lib sections output. This is |
2236 | right for SVR3.2. Shared libraries should probably get more | |
2237 | generic support. Ian Taylor <ian@cygnus.com>. */ | |
9783e04a DM |
2238 | if (strcmp (section->name, _LIB) == 0) |
2239 | ++section->lma; | |
075caafd | 2240 | #endif |
0f268757 | 2241 | |
9783e04a DM |
2242 | /* Don't write out bss sections - one way to do this is to |
2243 | see if the filepos has not been set. */ | |
2244 | if (section->filepos == 0) | |
2245 | return true; | |
55c95b04 | 2246 | |
791a3db4 ILT |
2247 | if (bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET) != 0) |
2248 | return false; | |
7a8b18b6 | 2249 | |
9783e04a DM |
2250 | if (count != 0) |
2251 | { | |
2252 | return (bfd_write (location, 1, count, abfd) == count) ? true : false; | |
075caafd | 2253 | } |
9783e04a | 2254 | return true; |
075caafd ILT |
2255 | } |
2256 | #if 0 | |
9783e04a DM |
2257 | static boolean |
2258 | coff_close_and_cleanup (abfd) | |
2259 | bfd *abfd; | |
0f268757 | 2260 | { |
9783e04a DM |
2261 | if (!bfd_read_p (abfd)) |
2262 | switch (abfd->format) | |
2263 | { | |
2264 | case bfd_archive: | |
2265 | if (!_bfd_write_archive_contents (abfd)) | |
2266 | return false; | |
2267 | break; | |
2268 | case bfd_object: | |
2269 | if (!coff_write_object_contents (abfd)) | |
2270 | return false; | |
2271 | break; | |
2272 | default: | |
57a1867e | 2273 | bfd_set_error (bfd_error_invalid_operation); |
075caafd | 2274 | return false; |
9783e04a | 2275 | } |
075caafd ILT |
2276 | |
2277 | /* We depend on bfd_close to free all the memory on the obstack. */ | |
2278 | /* FIXME if bfd_release is not using obstacks! */ | |
2279 | return true; | |
0f268757 SC |
2280 | } |
2281 | ||
075caafd ILT |
2282 | #endif |
2283 | ||
2284 | static PTR | |
9783e04a DM |
2285 | buy_and_read (abfd, where, seek_direction, size) |
2286 | bfd *abfd; | |
2287 | file_ptr where; | |
2288 | int seek_direction; | |
2289 | size_t size; | |
075caafd | 2290 | { |
9783e04a DM |
2291 | PTR area = (PTR) bfd_alloc (abfd, size); |
2292 | if (!area) | |
2293 | { | |
57a1867e | 2294 | bfd_set_error (bfd_error_no_memory); |
9783e04a | 2295 | return (NULL); |
075caafd | 2296 | } |
791a3db4 ILT |
2297 | if (bfd_seek (abfd, where, seek_direction) != 0 |
2298 | || bfd_read (area, 1, size, abfd) != size) | |
2299 | return (NULL); | |
9783e04a | 2300 | return (area); |
075caafd | 2301 | } /* buy_and_read() */ |
0f268757 | 2302 | |
9fda1a39 | 2303 | /* |
9783e04a | 2304 | SUBSUBSECTION |
c188b0be | 2305 | Reading linenumbers |
9fda1a39 | 2306 | |
9fda1a39 SC |
2307 | Creating the linenumber table is done by reading in the entire |
2308 | coff linenumber table, and creating another table for internal use. | |
6f715d66 | 2309 | |
c188b0be | 2310 | A coff linenumber table is structured so that each function |
9fda1a39 SC |
2311 | is marked as having a line number of 0. Each line within the |
2312 | function is an offset from the first line in the function. The | |
2313 | base of the line number information for the table is stored in | |
9783e04a | 2314 | the symbol associated with the function. |
6f715d66 | 2315 | |
9fda1a39 SC |
2316 | The information is copied from the external to the internal |
2317 | table, and each symbol which marks a function is marked by | |
2318 | pointing its... | |
6f715d66 | 2319 | |
9fda1a39 | 2320 | How does this work ? |
6f715d66 SC |
2321 | |
2322 | */ | |
0f268757 SC |
2323 | |
2324 | static boolean | |
9783e04a | 2325 | coff_slurp_line_table (abfd, asect) |
ab31ae53 KR |
2326 | bfd *abfd; |
2327 | asection *asect; | |
2328 | { | |
9783e04a | 2329 | LINENO *native_lineno; |
ab31ae53 KR |
2330 | alent *lineno_cache; |
2331 | ||
9783e04a | 2332 | BFD_ASSERT (asect->lineno == (alent *) NULL); |
ab31ae53 | 2333 | |
9783e04a DM |
2334 | native_lineno = (LINENO *) buy_and_read (abfd, |
2335 | asect->line_filepos, | |
2336 | SEEK_SET, | |
2337 | (size_t) (LINESZ * | |
2338 | asect->lineno_count)); | |
ab31ae53 | 2339 | lineno_cache = |
9783e04a | 2340 | (alent *) bfd_alloc (abfd, (size_t) ((asect->lineno_count + 1) * sizeof (alent))); |
ab31ae53 KR |
2341 | if (lineno_cache == NULL) |
2342 | { | |
57a1867e | 2343 | bfd_set_error (bfd_error_no_memory); |
0f268757 | 2344 | return false; |
ab31ae53 KR |
2345 | } |
2346 | else | |
2347 | { | |
9783e04a DM |
2348 | unsigned int counter = 0; |
2349 | alent *cache_ptr = lineno_cache; | |
2350 | LINENO *src = native_lineno; | |
cbdc7909 | 2351 | |
ab31ae53 KR |
2352 | while (counter < asect->lineno_count) |
2353 | { | |
2354 | struct internal_lineno dst; | |
9783e04a | 2355 | coff_swap_lineno_in (abfd, src, &dst); |
ab31ae53 KR |
2356 | cache_ptr->line_number = dst.l_lnno; |
2357 | ||
2358 | if (cache_ptr->line_number == 0) | |
2359 | { | |
2360 | coff_symbol_type *sym = | |
9783e04a DM |
2361 | (coff_symbol_type *) (dst.l_addr.l_symndx |
2362 | + obj_raw_syments (abfd))->u.syment._n._n_n._n_zeroes; | |
ab31ae53 KR |
2363 | cache_ptr->u.sym = (asymbol *) sym; |
2364 | sym->lineno = cache_ptr; | |
2365 | } | |
2366 | else | |
2367 | { | |
2368 | cache_ptr->u.offset = dst.l_addr.l_paddr | |
9783e04a DM |
2369 | - bfd_section_vma (abfd, asect); |
2370 | } /* If no linenumber expect a symbol index */ | |
ab31ae53 KR |
2371 | |
2372 | cache_ptr++; | |
2373 | src++; | |
2374 | counter++; | |
0f268757 | 2375 | } |
0f268757 | 2376 | cache_ptr->line_number = 0; |
cbdc7909 | 2377 | |
0f268757 | 2378 | } |
ab31ae53 KR |
2379 | asect->lineno = lineno_cache; |
2380 | /* FIXME, free native_lineno here, or use alloca or something. */ | |
2381 | return true; | |
2382 | } | |
0f268757 | 2383 | |
ab31ae53 | 2384 | static boolean |
57a1867e DM |
2385 | coff_slurp_symbol_table (abfd) |
2386 | bfd * abfd; | |
6f715d66 | 2387 | { |
9783e04a | 2388 | combined_entry_type *native_symbols; |
6f715d66 | 2389 | coff_symbol_type *cached_area; |
9783e04a | 2390 | unsigned int *table_ptr; |
cbdc7909 | 2391 | |
9783e04a | 2392 | unsigned int number_of_symbols = 0; |
89665c85 | 2393 | |
9783e04a | 2394 | if (obj_symbols (abfd)) |
6f715d66 | 2395 | return true; |
791a3db4 ILT |
2396 | if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0) |
2397 | return false; | |
cbdc7909 | 2398 | |
6f715d66 | 2399 | /* Read in the symbol table */ |
9783e04a DM |
2400 | if ((native_symbols = coff_get_normalized_symtab (abfd)) == NULL) |
2401 | { | |
2402 | return (false); | |
2403 | } /* on error */ | |
cbdc7909 | 2404 | |
6f715d66 | 2405 | /* Allocate enough room for all the symbols in cached form */ |
69645d10 ILT |
2406 | cached_area = ((coff_symbol_type *) |
2407 | bfd_alloc (abfd, | |
2408 | (obj_raw_syment_count (abfd) | |
2409 | * sizeof (coff_symbol_type)))); | |
cbdc7909 | 2410 | |
9783e04a DM |
2411 | if (cached_area == NULL) |
2412 | { | |
57a1867e | 2413 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
2414 | return false; |
2415 | } /* on error */ | |
69645d10 ILT |
2416 | table_ptr = ((unsigned int *) |
2417 | bfd_alloc (abfd, | |
2418 | (obj_raw_syment_count (abfd) | |
2419 | * sizeof (unsigned int)))); | |
cbdc7909 | 2420 | |
9783e04a DM |
2421 | if (table_ptr == NULL) |
2422 | { | |
57a1867e | 2423 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
2424 | return false; |
2425 | } | |
2426 | else | |
2427 | { | |
2428 | coff_symbol_type *dst = cached_area; | |
69645d10 | 2429 | unsigned int last_native_index = obj_raw_syment_count (abfd); |
9783e04a DM |
2430 | unsigned int this_index = 0; |
2431 | while (this_index < last_native_index) | |
2432 | { | |
2433 | combined_entry_type *src = native_symbols + this_index; | |
2434 | table_ptr[this_index] = number_of_symbols; | |
2435 | dst->symbol.the_bfd = abfd; | |
2436 | ||
2437 | dst->symbol.name = (char *) (src->u.syment._n._n_n._n_offset); | |
2438 | /* We use the native name field to point to the cached field. */ | |
2439 | src->u.syment._n._n_n._n_zeroes = (long) dst; | |
2440 | dst->symbol.section = coff_section_from_bfd_index (abfd, | |
2441 | src->u.syment.n_scnum); | |
2442 | dst->symbol.flags = 0; | |
2443 | dst->done_lineno = false; | |
2444 | ||
2445 | switch (src->u.syment.n_sclass) | |
2446 | { | |
0f268757 | 2447 | #ifdef I960 |
9783e04a | 2448 | case C_LEAFEXT: |
0f268757 | 2449 | #if 0 |
9783e04a DM |
2450 | dst->symbol.value = src->u.syment.n_value - dst->symbol.section->vma; |
2451 | dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL; | |
c7e76b5e | 2452 | dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION; |
0f268757 | 2453 | #endif |
9783e04a | 2454 | /* Fall through to next case */ |
cbdc7909 | 2455 | |
0f268757 | 2456 | #endif |
cbdc7909 | 2457 | |
9783e04a | 2458 | case C_EXT: |
cbdc7909 | 2459 | #ifdef RS6000COFF_C |
9783e04a | 2460 | case C_HIDEXT: |
89665c85 SC |
2461 | #endif |
2462 | #ifdef COFF_WITH_PE | |
2463 | /* PE uses storage class 0x68 to denote a section symbol */ | |
2464 | case C_SECTION: | |
9783e04a DM |
2465 | #endif |
2466 | if ((src->u.syment.n_scnum) == 0) | |
2467 | { | |
2468 | if ((src->u.syment.n_value) == 0) | |
2469 | { | |
b5b056fc | 2470 | dst->symbol.section = bfd_und_section_ptr; |
9783e04a DM |
2471 | dst->symbol.value = 0; |
2472 | } | |
2473 | else | |
2474 | { | |
b5b056fc | 2475 | dst->symbol.section = bfd_com_section_ptr; |
9783e04a DM |
2476 | dst->symbol.value = (src->u.syment.n_value); |
2477 | } | |
2478 | } | |
2479 | else | |
2480 | { | |
2481 | /* | |
6f715d66 SC |
2482 | Base the value as an index from the base of the |
2483 | section | |
2484 | */ | |
e98e6ec1 | 2485 | |
9783e04a DM |
2486 | dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL; |
2487 | dst->symbol.value = src->u.syment.n_value - dst->symbol.section->vma; | |
e98e6ec1 | 2488 | |
9783e04a DM |
2489 | if (ISFCN ((src->u.syment.n_type))) |
2490 | { | |
2491 | /* | |
6f715d66 SC |
2492 | A function ext does not go at the end of a file |
2493 | */ | |
c7e76b5e | 2494 | dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION; |
9783e04a DM |
2495 | } |
2496 | } | |
85e0c721 | 2497 | |
9783e04a DM |
2498 | #ifdef RS6000COFF_C |
2499 | /* If this symbol has a csect aux of type LD, the scnlen field | |
2500 | is actually the index of the containing csect symbol. We | |
2501 | need to pointerize it. */ | |
2502 | if (src->u.syment.n_numaux > 0) | |
2503 | { | |
2504 | combined_entry_type *aux; | |
2505 | ||
2506 | aux = src + src->u.syment.n_numaux - 1; | |
2507 | if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) == XTY_LD) | |
2508 | { | |
2509 | aux->u.auxent.x_csect.x_scnlen.p = | |
2510 | native_symbols + aux->u.auxent.x_csect.x_scnlen.l; | |
2511 | aux->fix_scnlen = 1; | |
2512 | } | |
2513 | } | |
2514 | #endif | |
2515 | ||
2516 | break; | |
2517 | ||
2518 | case C_STAT: /* static */ | |
0f268757 | 2519 | #ifdef I960 |
9783e04a DM |
2520 | case C_LEAFSTAT: /* static leaf procedure */ |
2521 | #endif | |
2522 | case C_LABEL: /* label */ | |
2523 | if (src->u.syment.n_scnum == -2) | |
2524 | dst->symbol.flags = BSF_DEBUGGING; | |
2525 | else | |
2526 | dst->symbol.flags = BSF_LOCAL; | |
2527 | /* | |
0d740984 SC |
2528 | Base the value as an index from the base of the section, if |
2529 | there is one | |
6f715d66 | 2530 | */ |
9783e04a DM |
2531 | if (dst->symbol.section) |
2532 | dst->symbol.value = (src->u.syment.n_value) - | |
2533 | dst->symbol.section->vma; | |
2534 | else | |
2535 | dst->symbol.value = (src->u.syment.n_value); | |
2536 | break; | |
2537 | ||
2538 | case C_MOS: /* member of structure */ | |
2539 | case C_EOS: /* end of structure */ | |
2540 | #ifdef NOTDEF /* C_AUTOARG has the same value */ | |
41f50af0 | 2541 | #ifdef C_GLBLREG |
9783e04a | 2542 | case C_GLBLREG: /* A29k-specific storage class */ |
41f50af0 SC |
2543 | #endif |
2544 | #endif | |
9783e04a DM |
2545 | case C_REGPARM: /* register parameter */ |
2546 | case C_REG: /* register variable */ | |
0f268757 | 2547 | #ifdef C_AUTOARG |
9783e04a DM |
2548 | case C_AUTOARG: /* 960-specific storage class */ |
2549 | #endif | |
2550 | case C_TPDEF: /* type definition */ | |
2551 | case C_ARG: | |
2552 | case C_AUTO: /* automatic variable */ | |
2553 | case C_FIELD: /* bit field */ | |
2554 | case C_ENTAG: /* enumeration tag */ | |
2555 | case C_MOE: /* member of enumeration */ | |
2556 | case C_MOU: /* member of union */ | |
2557 | case C_UNTAG: /* union tag */ | |
2558 | dst->symbol.flags = BSF_DEBUGGING; | |
2559 | dst->symbol.value = (src->u.syment.n_value); | |
2560 | break; | |
2561 | ||
2562 | case C_FILE: /* file name */ | |
2563 | case C_STRTAG: /* structure tag */ | |
cbdc7909 | 2564 | #ifdef RS6000COFF_C |
9783e04a DM |
2565 | case C_BINCL: /* beginning of include file */ |
2566 | case C_EINCL: /* ending of include file */ | |
2567 | case C_GSYM: | |
2568 | case C_LSYM: | |
2569 | case C_PSYM: | |
2570 | case C_RSYM: | |
2571 | case C_RPSYM: | |
2572 | case C_STSYM: | |
2573 | case C_DECL: | |
2574 | case C_ENTRY: | |
2575 | case C_FUN: | |
2576 | case C_ESTAT: | |
2577 | #endif | |
2578 | dst->symbol.flags = BSF_DEBUGGING; | |
2579 | dst->symbol.value = (src->u.syment.n_value); | |
2580 | break; | |
cbdc7909 | 2581 | |
9783e04a DM |
2582 | #ifdef RS6000COFF_C |
2583 | case C_BSTAT: | |
2584 | dst->symbol.flags = BSF_DEBUGGING; | |
2585 | dst->symbol.value = src->u.syment.n_value; | |
2586 | ||
2587 | /* The value is actually a symbol index. Save a pointer to | |
2588 | the symbol instead of the index. FIXME: This should use a | |
2589 | union. */ | |
2590 | src->u.syment.n_value = | |
2591 | (long) (native_symbols + src->u.syment.n_value); | |
2592 | src->fix_value = 1; | |
2593 | break; | |
2594 | #endif | |
2595 | ||
2596 | case C_BLOCK: /* ".bb" or ".eb" */ | |
2597 | case C_FCN: /* ".bf" or ".ef" */ | |
2598 | case C_EFCN: /* physical end of function */ | |
2599 | dst->symbol.flags = BSF_LOCAL; | |
2600 | /* | |
6f715d66 SC |
2601 | Base the value as an index from the base of the section |
2602 | */ | |
9783e04a DM |
2603 | dst->symbol.value = (src->u.syment.n_value) - dst->symbol.section->vma; |
2604 | break; | |
2605 | ||
2606 | case C_NULL: | |
2607 | case C_EXTDEF: /* external definition */ | |
2608 | case C_ULABEL: /* undefined label */ | |
2609 | case C_USTATIC: /* undefined static */ | |
89665c85 SC |
2610 | #ifndef COFF_WITH_PE |
2611 | /* C_LINE in regular coff is 0x68. NT has taken over this storage | |
2612 | class to represent a section symbol */ | |
9783e04a | 2613 | case C_LINE: /* line # reformatted as symbol table entry */ |
89665c85 | 2614 | #endif |
9783e04a DM |
2615 | case C_ALIAS: /* duplicate tag */ |
2616 | case C_HIDDEN: /* ext symbol in dmert public lib */ | |
2617 | default: | |
2618 | ||
2619 | fprintf (stderr, "Unrecognized storage class %d (assuming debugging)\n for %s symbol `%s'\n", | |
2620 | src->u.syment.n_sclass, dst->symbol.section->name, | |
2621 | dst->symbol.name); | |
954d412a | 2622 | /* abort();*/ |
9783e04a DM |
2623 | dst->symbol.flags = BSF_DEBUGGING; |
2624 | dst->symbol.value = (src->u.syment.n_value); | |
2625 | break; | |
2626 | } | |
cbdc7909 | 2627 | |
6590a8c9 | 2628 | /* BFD_ASSERT(dst->symbol.flags != 0);*/ |
cbdc7909 | 2629 | |
9783e04a | 2630 | dst->native = src; |
cbdc7909 | 2631 | |
f135c692 | 2632 | dst->symbol.udata.i = 0; |
9783e04a DM |
2633 | dst->lineno = (alent *) NULL; |
2634 | this_index += (src->u.syment.n_numaux) + 1; | |
2635 | dst++; | |
2636 | number_of_symbols++; | |
2637 | } /* walk the native symtab */ | |
2638 | } /* bfdize the native symtab */ | |
cbdc7909 | 2639 | |
9783e04a DM |
2640 | obj_symbols (abfd) = cached_area; |
2641 | obj_raw_syments (abfd) = native_symbols; | |
cbdc7909 | 2642 | |
9783e04a DM |
2643 | bfd_get_symcount (abfd) = number_of_symbols; |
2644 | obj_convert (abfd) = table_ptr; | |
6f715d66 | 2645 | /* Slurp the line tables for each section too */ |
9783e04a DM |
2646 | { |
2647 | asection *p; | |
2648 | p = abfd->sections; | |
2649 | while (p) | |
2650 | { | |
2651 | coff_slurp_line_table (abfd, p); | |
6f715d66 | 2652 | p = p->next; |
0f268757 | 2653 | } |
9783e04a | 2654 | } |
6f715d66 SC |
2655 | return true; |
2656 | } /* coff_slurp_symbol_table() */ | |
0f268757 | 2657 | |
69645d10 ILT |
2658 | /* Check whether a symbol is globally visible. This is used by the |
2659 | COFF backend linker code in cofflink.c, since a couple of targets | |
2660 | have globally visible symbols which are not class C_EXT. This | |
2661 | function need not handle the case of n_class == C_EXT. */ | |
2662 | ||
2663 | #undef OTHER_GLOBAL_CLASS | |
2664 | ||
2665 | #ifdef I960 | |
2666 | #define OTHER_GLOBAL_CLASS C_LEAFEXT | |
2667 | #endif | |
2668 | ||
2669 | #ifdef RS6000COFF_C | |
2670 | #define OTHER_GLOBAL_CLASS C_HIDEXT | |
2671 | #endif | |
2672 | ||
89665c85 SC |
2673 | #ifdef COFF_WITH_PE |
2674 | #define OTHER_GLOBAL_CLASS C_SECTION | |
2675 | #endif | |
2676 | ||
69645d10 ILT |
2677 | #ifdef OTHER_GLOBAL_CLASS |
2678 | ||
2679 | static boolean | |
2680 | coff_sym_is_global (abfd, syment) | |
2681 | bfd *abfd; | |
2682 | struct internal_syment *syment; | |
2683 | { | |
2684 | if (syment->n_sclass == OTHER_GLOBAL_CLASS) | |
2685 | return true; | |
2686 | return false; | |
2687 | } | |
2688 | ||
2689 | #undef OTHER_GLOBAL_CLASS | |
2690 | ||
2691 | #else /* ! defined (OTHER_GLOBAL_CLASS) */ | |
2692 | ||
2693 | /* sym_is_global should not be defined if it has nothing to do. */ | |
2694 | ||
2695 | #define coff_sym_is_global 0 | |
2696 | ||
2697 | #endif /* ! defined (OTHER_GLOBAL_CLASS) */ | |
2698 | ||
9fda1a39 | 2699 | /* |
9783e04a | 2700 | SUBSUBSECTION |
c188b0be | 2701 | Reading relocations |
9fda1a39 | 2702 | |
9fda1a39 SC |
2703 | Coff relocations are easily transformed into the internal BFD form |
2704 | (@code{arelent}). | |
2705 | ||
2706 | Reading a coff relocation table is done in the following stages: | |
2707 | ||
c188b0be | 2708 | o Read the entire coff relocation table into memory. |
9fda1a39 | 2709 | |
c188b0be | 2710 | o Process each relocation in turn; first swap it from the |
9fda1a39 SC |
2711 | external to the internal form. |
2712 | ||
c188b0be DM |
2713 | o Turn the symbol referenced in the relocation's symbol index |
2714 | into a pointer into the canonical symbol table. | |
2715 | This table is the same as the one returned by a call to | |
2716 | @code{bfd_canonicalize_symtab}. The back end will call that | |
9fda1a39 SC |
2717 | routine and save the result if a canonicalization hasn't been done. |
2718 | ||
2719 | o The reloc index is turned into a pointer to a howto | |
2720 | structure, in a back end specific way. For instance, the 386 | |
2721 | and 960 use the @code{r_type} to directly produce an index | |
2722 | into a howto table vector; the 88k subtracts a number from the | |
2723 | @code{r_type} field and creates an addend field. | |
2724 | ||
2725 | ||
6f715d66 SC |
2726 | */ |
2727 | ||
3b4f1a5d | 2728 | #ifndef CALC_ADDEND |
492d52cc ILT |
2729 | #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \ |
2730 | { \ | |
2731 | coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \ | |
2732 | if (ptr && bfd_asymbol_bfd (ptr) != abfd) \ | |
2733 | coffsym = (obj_symbols (abfd) \ | |
2734 | + (cache_ptr->sym_ptr_ptr - symbols)); \ | |
2735 | else if (ptr) \ | |
2736 | coffsym = coff_symbol_from (abfd, ptr); \ | |
2737 | if (coffsym != (coff_symbol_type *) NULL \ | |
2738 | && coffsym->native->u.syment.n_scnum == 0) \ | |
2739 | cache_ptr->addend = 0; \ | |
2740 | else if (ptr && bfd_asymbol_bfd (ptr) == abfd \ | |
2741 | && ptr->section != (asection *) NULL) \ | |
2742 | cache_ptr->addend = - (ptr->section->vma + ptr->value); \ | |
2743 | else \ | |
2744 | cache_ptr->addend = 0; \ | |
2745 | } | |
3b4f1a5d SC |
2746 | #endif |
2747 | ||
9783e04a | 2748 | static boolean |
57a1867e DM |
2749 | coff_slurp_reloc_table (abfd, asect, symbols) |
2750 | bfd * abfd; | |
2751 | sec_ptr asect; | |
2752 | asymbol ** symbols; | |
85e0c721 | 2753 | { |
9783e04a DM |
2754 | RELOC *native_relocs; |
2755 | arelent *reloc_cache; | |
2756 | arelent *cache_ptr; | |
3b4f1a5d SC |
2757 | |
2758 | unsigned int idx; | |
9783e04a | 2759 | |
3b4f1a5d | 2760 | if (asect->relocation) |
9783e04a | 2761 | return true; |
3b4f1a5d | 2762 | if (asect->reloc_count == 0) |
9783e04a | 2763 | return true; |
3b4f1a5d | 2764 | if (asect->flags & SEC_CONSTRUCTOR) |
9783e04a DM |
2765 | return true; |
2766 | if (!coff_slurp_symbol_table (abfd)) | |
2767 | return false; | |
3b4f1a5d | 2768 | native_relocs = |
9783e04a DM |
2769 | (RELOC *) buy_and_read (abfd, |
2770 | asect->rel_filepos, | |
2771 | SEEK_SET, | |
2772 | (size_t) (RELSZ * | |
2773 | asect->reloc_count)); | |
3b4f1a5d | 2774 | reloc_cache = (arelent *) |
9783e04a | 2775 | bfd_alloc (abfd, (size_t) (asect->reloc_count * sizeof (arelent))); |
3b4f1a5d | 2776 | |
9783e04a DM |
2777 | if (reloc_cache == NULL) |
2778 | { | |
57a1867e | 2779 | bfd_set_error (bfd_error_no_memory); |
3b4f1a5d | 2780 | return false; |
9783e04a | 2781 | } |
3b4f1a5d | 2782 | |
9783e04a DM |
2783 | |
2784 | for (idx = 0; idx < asect->reloc_count; idx++) | |
2785 | { | |
616ebcfd | 2786 | #ifdef RELOC_PROCESSING |
3b4f1a5d | 2787 | struct internal_reloc dst; |
9783e04a | 2788 | struct external_reloc *src; |
3b4f1a5d SC |
2789 | |
2790 | cache_ptr = reloc_cache + idx; | |
2791 | src = native_relocs + idx; | |
69645d10 | 2792 | coff_swap_reloc_in (abfd, src, &dst); |
3b4f1a5d | 2793 | |
9783e04a | 2794 | RELOC_PROCESSING (cache_ptr, &dst, symbols, abfd, asect); |
9898b929 | 2795 | #else |
616ebcfd | 2796 | struct internal_reloc dst; |
9783e04a DM |
2797 | asymbol *ptr; |
2798 | struct external_reloc *src; | |
616ebcfd SC |
2799 | |
2800 | cache_ptr = reloc_cache + idx; | |
2801 | src = native_relocs + idx; | |
2802 | ||
69645d10 | 2803 | coff_swap_reloc_in (abfd, src, &dst); |
616ebcfd | 2804 | |
9898b929 JG |
2805 | |
2806 | cache_ptr->address = dst.r_vaddr; | |
2807 | ||
9783e04a | 2808 | if (dst.r_symndx != -1) |
8070f29d KR |
2809 | { |
2810 | /* @@ Should never be greater than count of symbols! */ | |
2811 | if (dst.r_symndx >= obj_conv_table_size (abfd)) | |
2812 | abort (); | |
9783e04a | 2813 | cache_ptr->sym_ptr_ptr = symbols + obj_convert (abfd)[dst.r_symndx]; |
9898b929 | 2814 | ptr = *(cache_ptr->sym_ptr_ptr); |
8070f29d | 2815 | } |
9783e04a | 2816 | else |
8070f29d | 2817 | { |
b5b056fc | 2818 | cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; |
8070f29d KR |
2819 | ptr = 0; |
2820 | } | |
85e0c721 | 2821 | |
cd83759c KR |
2822 | /* The symbols definitions that we have read in have been |
2823 | relocated as if their sections started at 0. But the offsets | |
2824 | refering to the symbols in the raw data have not been | |
2825 | modified, so we have to have a negative addend to compensate. | |
2826 | ||
2827 | Note that symbols which used to be common must be left alone */ | |
cbdc7909 | 2828 | |
3b4f1a5d | 2829 | /* Calculate any reloc addend by looking at the symbol */ |
9783e04a | 2830 | CALC_ADDEND (abfd, ptr, dst, cache_ptr); |
cbdc7909 | 2831 | |
3b4f1a5d | 2832 | cache_ptr->address -= asect->vma; |
e98e6ec1 | 2833 | /* !! cache_ptr->section = (asection *) NULL;*/ |
20fdc627 | 2834 | |
3b4f1a5d | 2835 | /* Fill in the cache_ptr->howto field from dst.r_type */ |
9783e04a | 2836 | RTYPE2HOWTO (cache_ptr, &dst); |
9898b929 JG |
2837 | #endif |
2838 | ||
9783e04a | 2839 | } |
cbdc7909 | 2840 | |
3b4f1a5d SC |
2841 | asect->relocation = reloc_cache; |
2842 | return true; | |
85e0c721 | 2843 | } |
0f268757 | 2844 | |
f135c692 ILT |
2845 | #ifndef coff_rtype_to_howto |
2846 | #ifdef RTYPE2HOWTO | |
2847 | ||
2848 | /* Get the howto structure for a reloc. This is only used if the file | |
2849 | including this one defines coff_relocate_section to be | |
2850 | _bfd_coff_generic_relocate_section, so it is OK if it does not | |
2851 | always work. It is the responsibility of the including file to | |
2852 | make sure it is reasonable if it is needed. */ | |
2853 | ||
2854 | static reloc_howto_type *coff_rtype_to_howto | |
2855 | PARAMS ((bfd *, asection *, struct internal_reloc *, | |
2856 | struct coff_link_hash_entry *, struct internal_syment *, | |
2857 | bfd_vma *)); | |
2858 | ||
2859 | /*ARGSUSED*/ | |
2860 | static reloc_howto_type * | |
2861 | coff_rtype_to_howto (abfd, sec, rel, h, sym, addendp) | |
2862 | bfd *abfd; | |
2863 | asection *sec; | |
2864 | struct internal_reloc *rel; | |
2865 | struct coff_link_hash_entry *h; | |
2866 | struct internal_syment *sym; | |
2867 | bfd_vma *addendp; | |
2868 | { | |
2869 | arelent genrel; | |
2870 | ||
2871 | RTYPE2HOWTO (&genrel, rel); | |
2872 | return genrel.howto; | |
2873 | } | |
2874 | ||
2875 | #else /* ! defined (RTYPE2HOWTO) */ | |
2876 | ||
2877 | #define coff_rtype_to_howto NULL | |
2878 | ||
2879 | #endif /* ! defined (RTYPE2HOWTO) */ | |
2880 | #endif /* ! defined (coff_rtype_to_howto) */ | |
0f268757 | 2881 | |
cd83759c | 2882 | /* This is stupid. This function should be a boolean predicate. */ |
326e32d7 | 2883 | static long |
57a1867e DM |
2884 | coff_canonicalize_reloc (abfd, section, relptr, symbols) |
2885 | bfd * abfd; | |
2886 | sec_ptr section; | |
2887 | arelent ** relptr; | |
2888 | asymbol ** symbols; | |
85e0c721 | 2889 | { |
9783e04a DM |
2890 | arelent *tblptr = section->relocation; |
2891 | unsigned int count = 0; | |
cbdc7909 | 2892 | |
cbdc7909 | 2893 | |
9783e04a DM |
2894 | if (section->flags & SEC_CONSTRUCTOR) |
2895 | { | |
2896 | /* this section has relocs made up by us, they are not in the | |
e98e6ec1 SC |
2897 | file, so take them out of their chain and place them into |
2898 | the data area provided */ | |
9783e04a DM |
2899 | arelent_chain *chain = section->constructor_chain; |
2900 | for (count = 0; count < section->reloc_count; count++) | |
2901 | { | |
2902 | *relptr++ = &chain->relent; | |
2903 | chain = chain->next; | |
2904 | } | |
e98e6ec1 | 2905 | |
9783e04a DM |
2906 | } |
2907 | else | |
2908 | { | |
326e32d7 ILT |
2909 | if (! coff_slurp_reloc_table (abfd, section, symbols)) |
2910 | return -1; | |
85e0c721 | 2911 | |
9783e04a | 2912 | tblptr = section->relocation; |
85e0c721 | 2913 | |
9783e04a DM |
2914 | for (; count++ < section->reloc_count;) |
2915 | *relptr++ = tblptr++; | |
cbdc7909 | 2916 | |
85e0c721 | 2917 | |
9783e04a | 2918 | } |
e98e6ec1 SC |
2919 | *relptr = 0; |
2920 | return section->reloc_count; | |
85e0c721 | 2921 | } |
0f268757 | 2922 | |
0f268757 SC |
2923 | #ifdef GNU960 |
2924 | file_ptr | |
9783e04a DM |
2925 | coff_sym_filepos (abfd) |
2926 | bfd *abfd; | |
2927 | { | |
2928 | return obj_sym_filepos (abfd); | |
2929 | } | |
0f268757 SC |
2930 | #endif |
2931 | ||
fbb61b50 SC |
2932 | #ifndef coff_reloc16_estimate |
2933 | #define coff_reloc16_estimate dummy_reloc16_estimate | |
2934 | ||
56775366 | 2935 | static int |
09a28207 ILT |
2936 | dummy_reloc16_estimate (abfd, input_section, reloc, shrink, link_info) |
2937 | bfd *abfd; | |
fbb61b50 | 2938 | asection *input_section; |
fbb61b50 | 2939 | arelent *reloc; |
56775366 | 2940 | unsigned int shrink; |
330595d0 | 2941 | struct bfd_link_info *link_info; |
fbb61b50 | 2942 | { |
56775366 | 2943 | abort (); |
fbb61b50 SC |
2944 | } |
2945 | ||
2946 | #endif | |
2947 | ||
075caafd | 2948 | #ifndef coff_reloc16_extra_cases |
9e768fa2 JK |
2949 | #define coff_reloc16_extra_cases dummy_reloc16_extra_cases |
2950 | /* This works even if abort is not declared in any header file. */ | |
4d09e8ac | 2951 | static void |
330595d0 ILT |
2952 | dummy_reloc16_extra_cases (abfd, link_info, link_order, reloc, data, src_ptr, |
2953 | dst_ptr) | |
9e768fa2 | 2954 | bfd *abfd; |
330595d0 ILT |
2955 | struct bfd_link_info *link_info; |
2956 | struct bfd_link_order *link_order; | |
9e768fa2 JK |
2957 | arelent *reloc; |
2958 | bfd_byte *data; | |
2959 | unsigned int *src_ptr; | |
2960 | unsigned int *dst_ptr; | |
2961 | { | |
9783e04a | 2962 | fprintf (stderr, "%s\n", reloc->howto->name); |
9e768fa2 JK |
2963 | abort (); |
2964 | } | |
8ad2a31d | 2965 | #endif |
6590a8c9 | 2966 | |
69645d10 ILT |
2967 | /* If coff_relocate_section is defined, we can use the optimized COFF |
2968 | backend linker. Otherwise we must continue to use the old linker. */ | |
2969 | #ifdef coff_relocate_section | |
f135c692 | 2970 | #ifndef coff_bfd_link_hash_table_create |
69645d10 | 2971 | #define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create |
f135c692 ILT |
2972 | #endif |
2973 | #ifndef coff_bfd_link_add_symbols | |
69645d10 | 2974 | #define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols |
f135c692 ILT |
2975 | #endif |
2976 | #ifndef coff_bfd_final_link | |
69645d10 | 2977 | #define coff_bfd_final_link _bfd_coff_final_link |
f135c692 | 2978 | #endif |
69645d10 ILT |
2979 | #else /* ! defined (coff_relocate_section) */ |
2980 | #define coff_relocate_section NULL | |
2981 | #define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create | |
2982 | #define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols | |
2983 | #define coff_bfd_final_link _bfd_generic_final_link | |
2984 | #endif /* ! defined (coff_relocate_section) */ | |
89665c85 | 2985 | #define coff_bfd_link_split_section _bfd_generic_link_split_section |
69645d10 | 2986 | |
f135c692 ILT |
2987 | #ifndef coff_adjust_symndx |
2988 | #define coff_adjust_symndx NULL | |
2989 | #endif | |
2990 | ||
9783e04a DM |
2991 | static CONST bfd_coff_backend_data bfd_coff_std_swap_table = |
2992 | { | |
2993 | coff_swap_aux_in, coff_swap_sym_in, coff_swap_lineno_in, | |
2994 | coff_swap_aux_out, coff_swap_sym_out, | |
2995 | coff_swap_lineno_out, coff_swap_reloc_out, | |
2996 | coff_swap_filehdr_out, coff_swap_aouthdr_out, | |
2997 | coff_swap_scnhdr_out, | |
69645d10 | 2998 | FILHSZ, AOUTSZ, SCNHSZ, SYMESZ, AUXESZ, RELSZ, LINESZ, |
075caafd | 2999 | #ifdef COFF_LONG_FILENAMES |
9783e04a | 3000 | true, |
075caafd | 3001 | #else |
9783e04a | 3002 | false, |
07de8e96 | 3003 | #endif |
9783e04a | 3004 | coff_swap_filehdr_in, coff_swap_aouthdr_in, coff_swap_scnhdr_in, |
69645d10 ILT |
3005 | coff_swap_reloc_in, coff_bad_format_hook, coff_set_arch_mach_hook, |
3006 | coff_mkobject_hook, styp_to_sec_flags, coff_make_section_hook, | |
3007 | coff_set_alignment_hook, coff_slurp_symbol_table, symname_in_debug_hook, | |
3008 | coff_reloc16_extra_cases, coff_reloc16_estimate, | |
3009 | coff_sym_is_global, coff_compute_section_file_positions, | |
f135c692 | 3010 | coff_relocate_section, coff_rtype_to_howto, coff_adjust_symndx |
075caafd | 3011 | }; |
0f268757 | 3012 | |
6812b607 ILT |
3013 | #define coff_close_and_cleanup _bfd_generic_close_and_cleanup |
3014 | #define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info | |
3015 | #define coff_get_section_contents _bfd_generic_get_section_contents | |
09a28207 | 3016 | |
89665c85 SC |
3017 | #define coff_bfd_copy_private_symbol_data \ |
3018 | _bfd_generic_bfd_copy_private_symbol_data | |
09a28207 | 3019 | #define coff_bfd_copy_private_section_data \ |
6812b607 ILT |
3020 | _bfd_generic_bfd_copy_private_section_data |
3021 | #define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data | |
89665c85 SC |
3022 | #define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data |
3023 | #define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags | |
6812b607 | 3024 | |
09a28207 ILT |
3025 | #ifndef coff_bfd_is_local_label |
3026 | #define coff_bfd_is_local_label bfd_generic_is_local_label | |
3027 | #endif | |
6812b607 ILT |
3028 | |
3029 | /* The reloc lookup routine must be supplied by each individual COFF | |
3030 | backend. */ | |
3031 | #ifndef coff_bfd_reloc_type_lookup | |
3032 | #define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup | |
3033 | #endif | |
3034 | ||
3035 | #define coff_bfd_get_relocated_section_contents \ | |
3036 | bfd_generic_get_relocated_section_contents | |
3037 | #define coff_bfd_relax_section bfd_generic_relax_section |