1 /* Support for the generic parts of most COFF variants, for BFD. 2 Copyright (C) 1990-2015 Free Software Foundation, Inc. 3 Written by Cygnus Support. 4 5 This file is part of BFD, the Binary File Descriptor library. 6 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 3 of the License, or 10 (at your option) any later version. 11 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. 16 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., 51 Franklin Street - Fifth Floor, Boston, 20 MA 02110-1301, USA. */ 21 22 /* Most of this hacked by Steve Chamberlain, 23 sac@cygnus.com. */ 24 /* 25 SECTION 26 coff backends 27 28 BFD supports a number of different flavours of coff format. 29 The major differences between formats are the sizes and 30 alignments of fields in structures on disk, and the occasional 31 extra field. 32 33 Coff in all its varieties is implemented with a few common 34 files and a number of implementation specific files. For 35 example, The 88k bcs coff format is implemented in the file 36 @file{coff-m88k.c}. This file @code{#include}s 37 @file{coff/m88k.h} which defines the external structure of the 38 coff format for the 88k, and @file{coff/internal.h} which 39 defines the internal structure. @file{coff-m88k.c} also 40 defines the relocations used by the 88k format 41 @xref{Relocations}. 42 43 The Intel i960 processor version of coff is implemented in 44 @file{coff-i960.c}. This file has the same structure as 45 @file{coff-m88k.c}, except that it includes @file{coff/i960.h} 46 rather than @file{coff-m88k.h}. 47 48 SUBSECTION 49 Porting to a new version of coff 50 51 The recommended method is to select from the existing 52 implementations the version of coff which is most like the one 53 you want to use. For example, we'll say that i386 coff is 54 the one you select, and that your coff flavour is called foo. 55 Copy @file{i386coff.c} to @file{foocoff.c}, copy 56 @file{../include/coff/i386.h} to @file{../include/coff/foo.h}, 57 and add the lines to @file{targets.c} and @file{Makefile.in} 58 so that your new back end is used. Alter the shapes of the 59 structures in @file{../include/coff/foo.h} so that they match 60 what you need. You will probably also have to add 61 @code{#ifdef}s to the code in @file{coff/internal.h} and 62 @file{coffcode.h} if your version of coff is too wild. 63 64 You can verify that your new BFD backend works quite simply by 65 building @file{objdump} from the @file{binutils} directory, 66 and making sure that its version of what's going on and your 67 host system's idea (assuming it has the pretty standard coff 68 dump utility, usually called @code{att-dump} or just 69 @code{dump}) are the same. Then clean up your code, and send 70 what you've done to Cygnus. Then your stuff will be in the 71 next release, and you won't have to keep integrating it. 72 73 SUBSECTION 74 How the coff backend works 75 76 SUBSUBSECTION 77 File layout 78 79 The Coff backend is split into generic routines that are 80 applicable to any Coff target and routines that are specific 81 to a particular target. The target-specific routines are 82 further split into ones which are basically the same for all 83 Coff targets except that they use the external symbol format 84 or use different values for certain constants. 85 86 The generic routines are in @file{coffgen.c}. These routines 87 work for any Coff target. They use some hooks into the target 88 specific code; the hooks are in a @code{bfd_coff_backend_data} 89 structure, one of which exists for each target. 90 91 The essentially similar target-specific routines are in 92 @file{coffcode.h}. This header file includes executable C code. 93 The various Coff targets first include the appropriate Coff 94 header file, make any special defines that are needed, and 95 then include @file{coffcode.h}. 96 97 Some of the Coff targets then also have additional routines in 98 the target source file itself. 99 100 For example, @file{coff-i960.c} includes 101 @file{coff/internal.h} and @file{coff/i960.h}. It then 102 defines a few constants, such as @code{I960}, and includes 103 @file{coffcode.h}. Since the i960 has complex relocation 104 types, @file{coff-i960.c} also includes some code to 105 manipulate the i960 relocs. This code is not in 106 @file{coffcode.h} because it would not be used by any other 107 target. 108 109 SUBSUBSECTION 110 Coff long section names 111 112 In the standard Coff object format, section names are limited to 113 the eight bytes available in the @code{s_name} field of the 114 @code{SCNHDR} section header structure. The format requires the 115 field to be NUL-padded, but not necessarily NUL-terminated, so 116 the longest section names permitted are a full eight characters. 117 118 The Microsoft PE variants of the Coff object file format add 119 an extension to support the use of long section names. This 120 extension is defined in section 4 of the Microsoft PE/COFF 121 specification (rev 8.1). If a section name is too long to fit 122 into the section header's @code{s_name} field, it is instead 123 placed into the string table, and the @code{s_name} field is 124 filled with a slash ("/") followed by the ASCII decimal 125 representation of the offset of the full name relative to the 126 string table base. 127 128 Note that this implies that the extension can only be used in object 129 files, as executables do not contain a string table. The standard 130 specifies that long section names from objects emitted into executable 131 images are to be truncated. 132 133 However, as a GNU extension, BFD can generate executable images 134 that contain a string table and long section names. This 135 would appear to be technically valid, as the standard only says 136 that Coff debugging information is deprecated, not forbidden, 137 and in practice it works, although some tools that parse PE files 138 expecting the MS standard format may become confused; @file{PEview} is 139 one known example. 140 141 The functionality is supported in BFD by code implemented under 142 the control of the macro @code{COFF_LONG_SECTION_NAMES}. If not 143 defined, the format does not support long section names in any way. 144 If defined, it is used to initialise a flag, 145 @code{_bfd_coff_long_section_names}, and a hook function pointer, 146 @code{_bfd_coff_set_long_section_names}, in the Coff backend data 147 structure. The flag controls the generation of long section names 148 in output BFDs at runtime; if it is false, as it will be by default 149 when generating an executable image, long section names are truncated; 150 if true, the long section names extension is employed. The hook 151 points to a function that allows the value of the flag to be altered 152 at runtime, on formats that support long section names at all; on 153 other formats it points to a stub that returns an error indication. 154 155 With input BFDs, the flag is set according to whether any long section 156 names are detected while reading the section headers. For a completely 157 new BFD, the flag is set to the default for the target format. This 158 information can be used by a client of the BFD library when deciding 159 what output format to generate, and means that a BFD that is opened 160 for read and subsequently converted to a writeable BFD and modified 161 in-place will retain whatever format it had on input. 162 163 If @code{COFF_LONG_SECTION_NAMES} is simply defined (blank), or is 164 defined to the value "1", then long section names are enabled by 165 default; if it is defined to the value zero, they are disabled by 166 default (but still accepted in input BFDs). The header @file{coffcode.h} 167 defines a macro, @code{COFF_DEFAULT_LONG_SECTION_NAMES}, which is 168 used in the backends to initialise the backend data structure fields 169 appropriately; see the comments for further detail. 170 171 SUBSUBSECTION 172 Bit twiddling 173 174 Each flavour of coff supported in BFD has its own header file 175 describing the external layout of the structures. There is also 176 an internal description of the coff layout, in 177 @file{coff/internal.h}. A major function of the 178 coff backend is swapping the bytes and twiddling the bits to 179 translate the external form of the structures into the normal 180 internal form. This is all performed in the 181 @code{bfd_swap}_@i{thing}_@i{direction} routines. Some 182 elements are different sizes between different versions of 183 coff; it is the duty of the coff version specific include file 184 to override the definitions of various packing routines in 185 @file{coffcode.h}. E.g., the size of line number entry in coff is 186 sometimes 16 bits, and sometimes 32 bits. @code{#define}ing 187 @code{PUT_LNSZ_LNNO} and @code{GET_LNSZ_LNNO} will select the 188 correct one. No doubt, some day someone will find a version of 189 coff which has a varying field size not catered to at the 190 moment. To port BFD, that person will have to add more @code{#defines}. 191 Three of the bit twiddling routines are exported to 192 @code{gdb}; @code{coff_swap_aux_in}, @code{coff_swap_sym_in} 193 and @code{coff_swap_lineno_in}. @code{GDB} reads the symbol 194 table on its own, but uses BFD to fix things up. More of the 195 bit twiddlers are exported for @code{gas}; 196 @code{coff_swap_aux_out}, @code{coff_swap_sym_out}, 197 @code{coff_swap_lineno_out}, @code{coff_swap_reloc_out}, 198 @code{coff_swap_filehdr_out}, @code{coff_swap_aouthdr_out}, 199 @code{coff_swap_scnhdr_out}. @code{Gas} currently keeps track 200 of all the symbol table and reloc drudgery itself, thereby 201 saving the internal BFD overhead, but uses BFD to swap things 202 on the way out, making cross ports much safer. Doing so also 203 allows BFD (and thus the linker) to use the same header files 204 as @code{gas}, which makes one avenue to disaster disappear. 205 206 SUBSUBSECTION 207 Symbol reading 208 209 The simple canonical form for symbols used by BFD is not rich 210 enough to keep all the information available in a coff symbol 211 table. The back end gets around this problem by keeping the original 212 symbol table around, "behind the scenes". 213 214 When a symbol table is requested (through a call to 215 @code{bfd_canonicalize_symtab}), a request gets through to 216 @code{coff_get_normalized_symtab}. This reads the symbol table from 217 the coff file and swaps all the structures inside into the 218 internal form. It also fixes up all the pointers in the table 219 (represented in the file by offsets from the first symbol in 220 the table) into physical pointers to elements in the new 221 internal table. This involves some work since the meanings of 222 fields change depending upon context: a field that is a 223 pointer to another structure in the symbol table at one moment 224 may be the size in bytes of a structure at the next. Another 225 pass is made over the table. All symbols which mark file names 226 (<<C_FILE>> symbols) are modified so that the internal 227 string points to the value in the auxent (the real filename) 228 rather than the normal text associated with the symbol 229 (@code{".file"}). 230 231 At this time the symbol names are moved around. Coff stores 232 all symbols less than nine characters long physically 233 within the symbol table; longer strings are kept at the end of 234 the file in the string table. This pass moves all strings 235 into memory and replaces them with pointers to the strings. 236 237 The symbol table is massaged once again, this time to create 238 the canonical table used by the BFD application. Each symbol 239 is inspected in turn, and a decision made (using the 240 @code{sclass} field) about the various flags to set in the 241 @code{asymbol}. @xref{Symbols}. The generated canonical table 242 shares strings with the hidden internal symbol table. 243 244 Any linenumbers are read from the coff file too, and attached 245 to the symbols which own the functions the linenumbers belong to. 246 247 SUBSUBSECTION 248 Symbol writing 249 250 Writing a symbol to a coff file which didn't come from a coff 251 file will lose any debugging information. The @code{asymbol} 252 structure remembers the BFD from which the symbol was taken, and on 253 output the back end makes sure that the same destination target as 254 source target is present. 255 256 When the symbols have come from a coff file then all the 257 debugging information is preserved. 258 259 Symbol tables are provided for writing to the back end in a 260 vector of pointers to pointers. This allows applications like 261 the linker to accumulate and output large symbol tables 262 without having to do too much byte copying. 263 264 This function runs through the provided symbol table and 265 patches each symbol marked as a file place holder 266 (@code{C_FILE}) to point to the next file place holder in the 267 list. It also marks each @code{offset} field in the list with 268 the offset from the first symbol of the current symbol. 269 270 Another function of this procedure is to turn the canonical 271 value form of BFD into the form used by coff. Internally, BFD 272 expects symbol values to be offsets from a section base; so a 273 symbol physically at 0x120, but in a section starting at 274 0x100, would have the value 0x20. Coff expects symbols to 275 contain their final value, so symbols have their values 276 changed at this point to reflect their sum with their owning 277 section. This transformation uses the 278 <<output_section>> field of the @code{asymbol}'s 279 @code{asection} @xref{Sections}. 280 281 o <<coff_mangle_symbols>> 282 283 This routine runs though the provided symbol table and uses 284 the offsets generated by the previous pass and the pointers 285 generated when the symbol table was read in to create the 286 structured hierarchy required by coff. It changes each pointer 287 to a symbol into the index into the symbol table of the asymbol. 288 289 o <<coff_write_symbols>> 290 291 This routine runs through the symbol table and patches up the 292 symbols from their internal form into the coff way, calls the 293 bit twiddlers, and writes out the table to the file. 294 295 */ 296 297 /* 298 INTERNAL_DEFINITION 299 coff_symbol_type 300 301 DESCRIPTION 302 The hidden information for an <<asymbol>> is described in a 303 <<combined_entry_type>>: 304 305 CODE_FRAGMENT 306 . 307 .typedef struct coff_ptr_struct 308 .{ 309 . {* Remembers the offset from the first symbol in the file for 310 . this symbol. Generated by coff_renumber_symbols. *} 311 . unsigned int offset; 312 . 313 . {* Should the value of this symbol be renumbered. Used for 314 . XCOFF C_BSTAT symbols. Set by coff_slurp_symbol_table. *} 315 . unsigned int fix_value : 1; 316 . 317 . {* Should the tag field of this symbol be renumbered. 318 . Created by coff_pointerize_aux. *} 319 . unsigned int fix_tag : 1; 320 . 321 . {* Should the endidx field of this symbol be renumbered. 322 . Created by coff_pointerize_aux. *} 323 . unsigned int fix_end : 1; 324 . 325 . {* Should the x_csect.x_scnlen field be renumbered. 326 . Created by coff_pointerize_aux. *} 327 . unsigned int fix_scnlen : 1; 328 . 329 . {* Fix up an XCOFF C_BINCL/C_EINCL symbol. The value is the 330 . index into the line number entries. Set by coff_slurp_symbol_table. *} 331 . unsigned int fix_line : 1; 332 . 333 . {* The container for the symbol structure as read and translated 334 . from the file. *} 335 . union 336 . { 337 . union internal_auxent auxent; 338 . struct internal_syment syment; 339 . } u; 340 . 341 . {* Selector for the union above. *} 342 . bfd_boolean is_sym; 343 .} combined_entry_type; 344 . 345 . 346 .{* Each canonical asymbol really looks like this: *} 347 . 348 .typedef struct coff_symbol_struct 349 .{ 350 . {* The actual symbol which the rest of BFD works with *} 351 . asymbol symbol; 352 . 353 . {* A pointer to the hidden information for this symbol *} 354 . combined_entry_type *native; 355 . 356 . {* A pointer to the linenumber information for this symbol *} 357 . struct lineno_cache_entry *lineno; 358 . 359 . {* Have the line numbers been relocated yet ? *} 360 . bfd_boolean done_lineno; 361 .} coff_symbol_type; 362 363 */ 364 365 #include "libiberty.h" 366 367 #ifdef COFF_WITH_PE 368 #include "peicode.h" 369 #else 370 #include "coffswap.h" 371 #endif 372 373 #define STRING_SIZE_SIZE 4 374 375 #define DOT_DEBUG ".debug" 376 #define DOT_ZDEBUG ".zdebug" 377 #define GNU_LINKONCE_WI ".gnu.linkonce.wi." 378 #define GNU_LINKONCE_WT ".gnu.linkonce.wt." 379 #define DOT_RELOC ".reloc" 380 381 #if defined (COFF_LONG_SECTION_NAMES) 382 /* Needed to expand the inputs to BLANKOR1TOODD. */ 383 #define COFFLONGSECTIONCATHELPER(x,y) x ## y 384 /* If the input macro Y is blank or '1', return an odd number; if it is 385 '0', return an even number. Result undefined in all other cases. */ 386 #define BLANKOR1TOODD(y) COFFLONGSECTIONCATHELPER(1,y) 387 /* Defined to numerical 0 or 1 according to whether generation of long 388 section names is disabled or enabled by default. */ 389 #define COFF_ENABLE_LONG_SECTION_NAMES (BLANKOR1TOODD(COFF_LONG_SECTION_NAMES) & 1) 390 /* Where long section names are supported, we allow them to be enabled 391 and disabled at runtime, so select an appropriate hook function for 392 _bfd_coff_set_long_section_names. */ 393 #define COFF_LONG_SECTION_NAMES_SETTER bfd_coff_set_long_section_names_allowed 394 #else /* !defined (COFF_LONG_SECTION_NAMES) */ 395 /* If long section names are not supported, this stub disallows any 396 attempt to enable them at run-time. */ 397 #define COFF_LONG_SECTION_NAMES_SETTER bfd_coff_set_long_section_names_disallowed 398 #endif /* defined (COFF_LONG_SECTION_NAMES) */ 399 400 /* Define a macro that can be used to initialise both the fields relating 401 to long section names in the backend data struct simultaneously. */ 402 #if COFF_ENABLE_LONG_SECTION_NAMES 403 #define COFF_DEFAULT_LONG_SECTION_NAMES (TRUE), COFF_LONG_SECTION_NAMES_SETTER 404 #else /* !COFF_ENABLE_LONG_SECTION_NAMES */ 405 #define COFF_DEFAULT_LONG_SECTION_NAMES (FALSE), COFF_LONG_SECTION_NAMES_SETTER 406 #endif /* COFF_ENABLE_LONG_SECTION_NAMES */ 407 408 #if defined (COFF_LONG_SECTION_NAMES) 409 static bfd_boolean bfd_coff_set_long_section_names_allowed 410 (bfd *, int); 411 #else /* !defined (COFF_LONG_SECTION_NAMES) */ 412 static bfd_boolean bfd_coff_set_long_section_names_disallowed 413 (bfd *, int); 414 #endif /* defined (COFF_LONG_SECTION_NAMES) */ 415 static long sec_to_styp_flags 416 (const char *, flagword); 417 static bfd_boolean styp_to_sec_flags 418 (bfd *, void *, const char *, asection *, flagword *); 419 static bfd_boolean coff_bad_format_hook 420 (bfd *, void *); 421 static void coff_set_custom_section_alignment 422 (bfd *, asection *, const struct coff_section_alignment_entry *, 423 const unsigned int); 424 static bfd_boolean coff_new_section_hook 425 (bfd *, asection *); 426 static bfd_boolean coff_set_arch_mach_hook 427 (bfd *, void *); 428 static bfd_boolean coff_write_relocs 429 (bfd *, int); 430 static bfd_boolean coff_set_flags 431 (bfd *, unsigned int *, unsigned short *); 432 static bfd_boolean coff_set_arch_mach 433 (bfd *, enum bfd_architecture, unsigned long) ATTRIBUTE_UNUSED; 434 static bfd_boolean coff_compute_section_file_positions 435 (bfd *); 436 static bfd_boolean coff_write_object_contents 437 (bfd *) ATTRIBUTE_UNUSED; 438 static bfd_boolean coff_set_section_contents 439 (bfd *, asection *, const void *, file_ptr, bfd_size_type); 440 static void * buy_and_read 441 (bfd *, file_ptr, bfd_size_type); 442 static bfd_boolean coff_slurp_line_table 443 (bfd *, asection *); 444 static bfd_boolean coff_slurp_symbol_table 445 (bfd *); 446 static enum coff_symbol_classification coff_classify_symbol 447 (bfd *, struct internal_syment *); 448 static bfd_boolean coff_slurp_reloc_table 449 (bfd *, asection *, asymbol **); 450 static long coff_canonicalize_reloc 451 (bfd *, asection *, arelent **, asymbol **); 452 #ifndef coff_mkobject_hook 453 static void * coff_mkobject_hook 454 (bfd *, void *, void *); 455 #endif 456 #ifdef COFF_WITH_PE 457 static flagword handle_COMDAT 458 (bfd *, flagword, void *, const char *, asection *); 459 #endif 460 #ifdef COFF_IMAGE_WITH_PE 461 static bfd_boolean coff_read_word 462 (bfd *, unsigned int *); 463 static unsigned int coff_compute_checksum 464 (bfd *); 465 static bfd_boolean coff_apply_checksum 466 (bfd *); 467 #endif 468 #ifdef TICOFF 469 static bfd_boolean ticoff0_bad_format_hook 470 (bfd *, void * ); 471 static bfd_boolean ticoff1_bad_format_hook 472 (bfd *, void * ); 473 #endif 474 475 /* void warning(); */ 476 477 #if defined (COFF_LONG_SECTION_NAMES) 478 static bfd_boolean 479 bfd_coff_set_long_section_names_allowed (bfd *abfd, int enable) 480 { 481 coff_backend_info (abfd)->_bfd_coff_long_section_names = enable; 482 return TRUE; 483 } 484 #else /* !defined (COFF_LONG_SECTION_NAMES) */ 485 static bfd_boolean 486 bfd_coff_set_long_section_names_disallowed (bfd *abfd, int enable) 487 { 488 (void) abfd; 489 (void) enable; 490 return FALSE; 491 } 492 #endif /* defined (COFF_LONG_SECTION_NAMES) */ 493 494 /* Return a word with STYP_* (scnhdr.s_flags) flags set to represent 495 the incoming SEC_* flags. The inverse of this function is 496 styp_to_sec_flags(). NOTE: If you add to/change this routine, you 497 should probably mirror the changes in styp_to_sec_flags(). */ 498 499 #ifndef COFF_WITH_PE 500 501 /* Macros for setting debugging flags. */ 502 503 #ifdef STYP_DEBUG 504 #define STYP_XCOFF_DEBUG STYP_DEBUG 505 #else 506 #define STYP_XCOFF_DEBUG STYP_INFO 507 #endif 508 509 #ifdef COFF_ALIGN_IN_S_FLAGS 510 #define STYP_DEBUG_INFO STYP_DSECT 511 #else 512 #define STYP_DEBUG_INFO STYP_INFO 513 #endif 514 515 static long 516 sec_to_styp_flags (const char *sec_name, flagword sec_flags) 517 { 518 long styp_flags = 0; 519 520 if (!strcmp (sec_name, _TEXT)) 521 { 522 styp_flags = STYP_TEXT; 523 } 524 else if (!strcmp (sec_name, _DATA)) 525 { 526 styp_flags = STYP_DATA; 527 } 528 else if (!strcmp (sec_name, _BSS)) 529 { 530 styp_flags = STYP_BSS; 531 #ifdef _COMMENT 532 } 533 else if (!strcmp (sec_name, _COMMENT)) 534 { 535 styp_flags = STYP_INFO; 536 #endif /* _COMMENT */ 537 #ifdef _LIB 538 } 539 else if (!strcmp (sec_name, _LIB)) 540 { 541 styp_flags = STYP_LIB; 542 #endif /* _LIB */ 543 #ifdef _LIT 544 } 545 else if (!strcmp (sec_name, _LIT)) 546 { 547 styp_flags = STYP_LIT; 548 #endif /* _LIT */ 549 } 550 else if (CONST_STRNEQ (sec_name, DOT_DEBUG) 551 || CONST_STRNEQ (sec_name, DOT_ZDEBUG)) 552 { 553 /* Handle the XCOFF debug section and DWARF2 debug sections. */ 554 if (!sec_name[6]) 555 styp_flags = STYP_XCOFF_DEBUG; 556 else 557 styp_flags = STYP_DEBUG_INFO; 558 } 559 else if (CONST_STRNEQ (sec_name, ".stab")) 560 { 561 styp_flags = STYP_DEBUG_INFO; 562 } 563 #ifdef COFF_LONG_SECTION_NAMES 564 else if (CONST_STRNEQ (sec_name, GNU_LINKONCE_WI) 565 || CONST_STRNEQ (sec_name, GNU_LINKONCE_WT)) 566 { 567 styp_flags = STYP_DEBUG_INFO; 568 } 569 #endif 570 #ifdef RS6000COFF_C 571 else if (!strcmp (sec_name, _PAD)) 572 { 573 styp_flags = STYP_PAD; 574 } 575 else if (!strcmp (sec_name, _LOADER)) 576 { 577 styp_flags = STYP_LOADER; 578 } 579 else if (!strcmp (sec_name, _EXCEPT)) 580 { 581 styp_flags = STYP_EXCEPT; 582 } 583 else if (!strcmp (sec_name, _TYPCHK)) 584 { 585 styp_flags = STYP_TYPCHK; 586 } 587 else if (sec_flags & SEC_DEBUGGING) 588 { 589 int i; 590 591 for (i = 0; i < XCOFF_DWSECT_NBR_NAMES; i++) 592 if (!strcmp (sec_name, xcoff_dwsect_names[i].name)) 593 { 594 styp_flags = STYP_DWARF | xcoff_dwsect_names[i].flag; 595 break; 596 } 597 } 598 #endif 599 /* Try and figure out what it should be */ 600 else if (sec_flags & SEC_CODE) 601 { 602 styp_flags = STYP_TEXT; 603 } 604 else if (sec_flags & SEC_DATA) 605 { 606 styp_flags = STYP_DATA; 607 } 608 else if (sec_flags & SEC_READONLY) 609 { 610 #ifdef STYP_LIT /* 29k readonly text/data section */ 611 styp_flags = STYP_LIT; 612 #else 613 styp_flags = STYP_TEXT; 614 #endif /* STYP_LIT */ 615 } 616 else if (sec_flags & SEC_LOAD) 617 { 618 styp_flags = STYP_TEXT; 619 } 620 else if (sec_flags & SEC_ALLOC) 621 { 622 styp_flags = STYP_BSS; 623 } 624 625 #ifdef STYP_CLINK 626 if (sec_flags & SEC_TIC54X_CLINK) 627 styp_flags |= STYP_CLINK; 628 #endif 629 630 #ifdef STYP_BLOCK 631 if (sec_flags & SEC_TIC54X_BLOCK) 632 styp_flags |= STYP_BLOCK; 633 #endif 634 635 #ifdef STYP_NOLOAD 636 if ((sec_flags & (SEC_NEVER_LOAD | SEC_COFF_SHARED_LIBRARY)) != 0) 637 styp_flags |= STYP_NOLOAD; 638 #endif 639 640 return styp_flags; 641 } 642 643 #else /* COFF_WITH_PE */ 644 645 /* The PE version; see above for the general comments. The non-PE 646 case seems to be more guessing, and breaks PE format; specifically, 647 .rdata is readonly, but it sure ain't text. Really, all this 648 should be set up properly in gas (or whatever assembler is in use), 649 and honor whatever objcopy/strip, etc. sent us as input. */ 650 651 static long 652 sec_to_styp_flags (const char *sec_name, flagword sec_flags) 653 { 654 long styp_flags = 0; 655 bfd_boolean is_dbg = FALSE; 656 657 if (CONST_STRNEQ (sec_name, DOT_DEBUG) 658 || CONST_STRNEQ (sec_name, DOT_ZDEBUG) 659 #ifdef COFF_LONG_SECTION_NAMES 660 || CONST_STRNEQ (sec_name, GNU_LINKONCE_WI) 661 || CONST_STRNEQ (sec_name, GNU_LINKONCE_WT) 662 #endif 663 || CONST_STRNEQ (sec_name, ".stab")) 664 is_dbg = TRUE; 665 666 /* caution: there are at least three groups of symbols that have 667 very similar bits and meanings: IMAGE_SCN*, SEC_*, and STYP_*. 668 SEC_* are the BFD internal flags, used for generic BFD 669 information. STYP_* are the COFF section flags which appear in 670 COFF files. IMAGE_SCN_* are the PE section flags which appear in 671 PE files. The STYP_* flags and the IMAGE_SCN_* flags overlap, 672 but there are more IMAGE_SCN_* flags. */ 673 674 /* FIXME: There is no gas syntax to specify the debug section flag. */ 675 if (is_dbg) 676 { 677 sec_flags &= (SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD 678 | SEC_LINK_DUPLICATES_SAME_CONTENTS 679 | SEC_LINK_DUPLICATES_SAME_SIZE); 680 sec_flags |= SEC_DEBUGGING | SEC_READONLY; 681 } 682 683 /* skip LOAD */ 684 /* READONLY later */ 685 /* skip RELOC */ 686 if ((sec_flags & SEC_CODE) != 0) 687 styp_flags |= IMAGE_SCN_CNT_CODE; 688 if ((sec_flags & (SEC_DATA | SEC_DEBUGGING)) != 0) 689 styp_flags |= IMAGE_SCN_CNT_INITIALIZED_DATA; 690 if ((sec_flags & SEC_ALLOC) != 0 && (sec_flags & SEC_LOAD) == 0) 691 styp_flags |= IMAGE_SCN_CNT_UNINITIALIZED_DATA; /* ==STYP_BSS */ 692 /* skip ROM */ 693 /* skip constRUCTOR */ 694 /* skip CONTENTS */ 695 if ((sec_flags & SEC_IS_COMMON) != 0) 696 styp_flags |= IMAGE_SCN_LNK_COMDAT; 697 if ((sec_flags & SEC_DEBUGGING) != 0) 698 styp_flags |= IMAGE_SCN_MEM_DISCARDABLE; 699 if ((sec_flags & SEC_EXCLUDE) != 0 && !is_dbg) 700 styp_flags |= IMAGE_SCN_LNK_REMOVE; 701 if ((sec_flags & SEC_NEVER_LOAD) != 0 && !is_dbg) 702 styp_flags |= IMAGE_SCN_LNK_REMOVE; 703 /* skip IN_MEMORY */ 704 /* skip SORT */ 705 if (sec_flags & SEC_LINK_ONCE) 706 styp_flags |= IMAGE_SCN_LNK_COMDAT; 707 if ((sec_flags 708 & (SEC_LINK_DUPLICATES_DISCARD | SEC_LINK_DUPLICATES_SAME_CONTENTS 709 | SEC_LINK_DUPLICATES_SAME_SIZE)) != 0) 710 styp_flags |= IMAGE_SCN_LNK_COMDAT; 711 712 /* skip LINKER_CREATED */ 713 714 if ((sec_flags & SEC_COFF_NOREAD) == 0) 715 styp_flags |= IMAGE_SCN_MEM_READ; /* Invert NOREAD for read. */ 716 if ((sec_flags & SEC_READONLY) == 0) 717 styp_flags |= IMAGE_SCN_MEM_WRITE; /* Invert READONLY for write. */ 718 if (sec_flags & SEC_CODE) 719 styp_flags |= IMAGE_SCN_MEM_EXECUTE; /* CODE->EXECUTE. */ 720 if (sec_flags & SEC_COFF_SHARED) 721 styp_flags |= IMAGE_SCN_MEM_SHARED; /* Shared remains meaningful. */ 722 723 return styp_flags; 724 } 725 726 #endif /* COFF_WITH_PE */ 727 728 /* Return a word with SEC_* flags set to represent the incoming STYP_* 729 flags (from scnhdr.s_flags). The inverse of this function is 730 sec_to_styp_flags(). NOTE: If you add to/change this routine, you 731 should probably mirror the changes in sec_to_styp_flags(). */ 732 733 #ifndef COFF_WITH_PE 734 735 static bfd_boolean 736 styp_to_sec_flags (bfd *abfd ATTRIBUTE_UNUSED, 737 void * hdr, 738 const char *name, 739 asection *section ATTRIBUTE_UNUSED, 740 flagword *flags_ptr) 741 { 742 struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr; 743 long styp_flags = internal_s->s_flags; 744 flagword sec_flags = 0; 745 746 #ifdef STYP_BLOCK 747 if (styp_flags & STYP_BLOCK) 748 sec_flags |= SEC_TIC54X_BLOCK; 749 #endif 750 751 #ifdef STYP_CLINK 752 if (styp_flags & STYP_CLINK) 753 sec_flags |= SEC_TIC54X_CLINK; 754 #endif 755 756 #ifdef STYP_NOLOAD 757 if (styp_flags & STYP_NOLOAD) 758 sec_flags |= SEC_NEVER_LOAD; 759 #endif /* STYP_NOLOAD */ 760 761 /* For 386 COFF, at least, an unloadable text or data section is 762 actually a shared library section. */ 763 if (styp_flags & STYP_TEXT) 764 { 765 if (sec_flags & SEC_NEVER_LOAD) 766 sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY; 767 else 768 sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; 769 } 770 else if (styp_flags & STYP_DATA) 771 { 772 if (sec_flags & SEC_NEVER_LOAD) 773 sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY; 774 else 775 sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; 776 } 777 else if (styp_flags & STYP_BSS) 778 { 779 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY 780 if (sec_flags & SEC_NEVER_LOAD) 781 sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY; 782 else 783 #endif 784 sec_flags |= SEC_ALLOC; 785 } 786 else if (styp_flags & STYP_INFO) 787 { 788 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is 789 defined. coff_compute_section_file_positions uses 790 COFF_PAGE_SIZE to ensure that the low order bits of the 791 section VMA and the file offset match. If we don't know 792 COFF_PAGE_SIZE, we can't ensure the correct correspondence, 793 and demand page loading of the file will fail. */ 794 #if defined (COFF_PAGE_SIZE) && !defined (COFF_ALIGN_IN_S_FLAGS) 795 sec_flags |= SEC_DEBUGGING; 796 #endif 797 } 798 else if (styp_flags & STYP_PAD) 799 sec_flags = 0; 800 #ifdef RS6000COFF_C 801 else if (styp_flags & STYP_EXCEPT) 802 sec_flags |= SEC_LOAD; 803 else if (styp_flags & STYP_LOADER) 804 sec_flags |= SEC_LOAD; 805 else if (styp_flags & STYP_TYPCHK) 806 sec_flags |= SEC_LOAD; 807 else if (styp_flags & STYP_DWARF) 808 sec_flags |= SEC_DEBUGGING; 809 #endif 810 else if (strcmp (name, _TEXT) == 0) 811 { 812 if (sec_flags & SEC_NEVER_LOAD) 813 sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY; 814 else 815 sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; 816 } 817 else if (strcmp (name, _DATA) == 0) 818 { 819 if (sec_flags & SEC_NEVER_LOAD) 820 sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY; 821 else 822 sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; 823 } 824 else if (strcmp (name, _BSS) == 0) 825 { 826 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY 827 if (sec_flags & SEC_NEVER_LOAD) 828 sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY; 829 else 830 #endif 831 sec_flags |= SEC_ALLOC; 832 } 833 else if (CONST_STRNEQ (name, DOT_DEBUG) 834 || CONST_STRNEQ (name, DOT_ZDEBUG) 835 #ifdef _COMMENT 836 || strcmp (name, _COMMENT) == 0 837 #endif 838 #ifdef COFF_LONG_SECTION_NAMES 839 || CONST_STRNEQ (name, GNU_LINKONCE_WI) 840 || CONST_STRNEQ (name, GNU_LINKONCE_WT) 841 #endif 842 || CONST_STRNEQ (name, ".stab")) 843 { 844 #ifdef COFF_PAGE_SIZE 845 sec_flags |= SEC_DEBUGGING; 846 #endif 847 } 848 #ifdef _LIB 849 else if (strcmp (name, _LIB) == 0) 850 ; 851 #endif 852 #ifdef _LIT 853 else if (strcmp (name, _LIT) == 0) 854 sec_flags = SEC_LOAD | SEC_ALLOC | SEC_READONLY; 855 #endif 856 else 857 sec_flags |= SEC_ALLOC | SEC_LOAD; 858 859 #ifdef STYP_LIT /* A29k readonly text/data section type. */ 860 if ((styp_flags & STYP_LIT) == STYP_LIT) 861 sec_flags = (SEC_LOAD | SEC_ALLOC | SEC_READONLY); 862 #endif /* STYP_LIT */ 863 864 #ifdef STYP_OTHER_LOAD /* Other loaded sections. */ 865 if (styp_flags & STYP_OTHER_LOAD) 866 sec_flags = (SEC_LOAD | SEC_ALLOC); 867 #endif /* STYP_SDATA */ 868 869 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE) 870 /* As a GNU extension, if the name begins with .gnu.linkonce, we 871 only link a single copy of the section. This is used to support 872 g++. g++ will emit each template expansion in its own section. 873 The symbols will be defined as weak, so that multiple definitions 874 are permitted. The GNU linker extension is to actually discard 875 all but one of the sections. */ 876 if (CONST_STRNEQ (name, ".gnu.linkonce")) 877 sec_flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; 878 #endif 879 880 if (flags_ptr == NULL) 881 return FALSE; 882 883 * flags_ptr = sec_flags; 884 return TRUE; 885 } 886 887 #else /* COFF_WITH_PE */ 888 889 static flagword 890 handle_COMDAT (bfd * abfd, 891 flagword sec_flags, 892 void * hdr, 893 const char *name, 894 asection *section) 895 { 896 struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr; 897 bfd_byte *esymstart, *esym, *esymend; 898 int seen_state = 0; 899 char *target_name = NULL; 900 901 sec_flags |= SEC_LINK_ONCE; 902 903 /* Unfortunately, the PE format stores essential information in 904 the symbol table, of all places. We need to extract that 905 information now, so that objdump and the linker will know how 906 to handle the section without worrying about the symbols. We 907 can't call slurp_symtab, because the linker doesn't want the 908 swapped symbols. */ 909 910 /* COMDAT sections are special. The first symbol is the section 911 symbol, which tells what kind of COMDAT section it is. The 912 second symbol is the "comdat symbol" - the one with the 913 unique name. GNU uses the section symbol for the unique 914 name; MS uses ".text" for every comdat section. Sigh. - DJ */ 915 916 /* This is not mirrored in sec_to_styp_flags(), but there 917 doesn't seem to be a need to, either, and it would at best be 918 rather messy. */ 919 920 if (! _bfd_coff_get_external_symbols (abfd)) 921 return sec_flags; 922 923 esymstart = esym = (bfd_byte *) obj_coff_external_syms (abfd); 924 esymend = esym + obj_raw_syment_count (abfd) * bfd_coff_symesz (abfd); 925 926 while (esym < esymend) 927 { 928 struct internal_syment isym; 929 char buf[SYMNMLEN + 1]; 930 const char *symname; 931 932 bfd_coff_swap_sym_in (abfd, esym, & isym); 933 934 BFD_ASSERT (sizeof (internal_s->s_name) <= SYMNMLEN); 935 936 if (isym.n_scnum == section->target_index) 937 { 938 /* According to the MSVC documentation, the first 939 TWO entries with the section # are both of 940 interest to us. The first one is the "section 941 symbol" (section name). The second is the comdat 942 symbol name. Here, we've found the first 943 qualifying entry; we distinguish it from the 944 second with a state flag. 945 946 In the case of gas-generated (at least until that 947 is fixed) .o files, it isn't necessarily the 948 second one. It may be some other later symbol. 949 950 Since gas also doesn't follow MS conventions and 951 emits the section similar to .text$<name>, where 952 <something> is the name we're looking for, we 953 distinguish the two as follows: 954 955 If the section name is simply a section name (no 956 $) we presume it's MS-generated, and look at 957 precisely the second symbol for the comdat name. 958 If the section name has a $, we assume it's 959 gas-generated, and look for <something> (whatever 960 follows the $) as the comdat symbol. */ 961 962 /* All 3 branches use this. */ 963 symname = _bfd_coff_internal_syment_name (abfd, &isym, buf); 964 965 /* PR 17512 file: 078-11867-0.004 */ 966 if (symname == NULL) 967 { 968 _bfd_error_handler (_("%B: unable to load COMDAT section name"), abfd); 969 break; 970 } 971 972 switch (seen_state) 973 { 974 case 0: 975 { 976 /* The first time we've seen the symbol. */ 977 union internal_auxent aux; 978 979 /* If it isn't the stuff we're expecting, die; 980 The MS documentation is vague, but it 981 appears that the second entry serves BOTH 982 as the comdat symbol and the defining 983 symbol record (either C_STAT or C_EXT, 984 possibly with an aux entry with debug 985 information if it's a function.) It 986 appears the only way to find the second one 987 is to count. (On Intel, they appear to be 988 adjacent, but on Alpha, they have been 989 found separated.) 990 991 Here, we think we've found the first one, 992 but there's some checking we can do to be 993 sure. */ 994 995 if (! ((isym.n_sclass == C_STAT 996 || isym.n_sclass == C_EXT) 997 && BTYPE (isym.n_type) == T_NULL 998 && isym.n_value == 0)) 999 abort (); 1000 1001 /* FIXME LATER: MSVC generates section names 1002 like .text for comdats. Gas generates 1003 names like .text$foo__Fv (in the case of a 1004 function). See comment above for more. */ 1005 1006 if (isym.n_sclass == C_STAT && strcmp (name, symname) != 0) 1007 _bfd_error_handler (_("%B: warning: COMDAT symbol '%s' does not match section name '%s'"), 1008 abfd, symname, name); 1009 1010 seen_state = 1; 1011 1012 /* PR 17512: file: e2cfe54f. */ 1013 if (esym + bfd_coff_symesz (abfd) >= esymend) 1014 { 1015 _bfd_error_handler (_("%B: warning: No symbol for section '%s' found"), 1016 abfd, symname); 1017 break; 1018 } 1019 /* This is the section symbol. */ 1020 bfd_coff_swap_aux_in (abfd, (esym + bfd_coff_symesz (abfd)), 1021 isym.n_type, isym.n_sclass, 1022 0, isym.n_numaux, & aux); 1023 1024 target_name = strchr (name, '$'); 1025 if (target_name != NULL) 1026 { 1027 /* Gas mode. */ 1028 seen_state = 2; 1029 /* Skip the `$'. */ 1030 target_name += 1; 1031 } 1032 1033 /* FIXME: Microsoft uses NODUPLICATES and 1034 ASSOCIATIVE, but gnu uses ANY and 1035 SAME_SIZE. Unfortunately, gnu doesn't do 1036 the comdat symbols right. So, until we can 1037 fix it to do the right thing, we are 1038 temporarily disabling comdats for the MS 1039 types (they're used in DLLs and C++, but we 1040 don't support *their* C++ libraries anyway 1041 - DJ. */ 1042 1043 /* Cygwin does not follow the MS style, and 1044 uses ANY and SAME_SIZE where NODUPLICATES 1045 and ASSOCIATIVE should be used. For 1046 Interix, we just do the right thing up 1047 front. */ 1048 1049 switch (aux.x_scn.x_comdat) 1050 { 1051 case IMAGE_COMDAT_SELECT_NODUPLICATES: 1052 #ifdef STRICT_PE_FORMAT 1053 sec_flags |= SEC_LINK_DUPLICATES_ONE_ONLY; 1054 #else 1055 sec_flags &= ~SEC_LINK_ONCE; 1056 #endif 1057 break; 1058 1059 case IMAGE_COMDAT_SELECT_ANY: 1060 sec_flags |= SEC_LINK_DUPLICATES_DISCARD; 1061 break; 1062 1063 case IMAGE_COMDAT_SELECT_SAME_SIZE: 1064 sec_flags |= SEC_LINK_DUPLICATES_SAME_SIZE; 1065 break; 1066 1067 case IMAGE_COMDAT_SELECT_EXACT_MATCH: 1068 /* Not yet fully implemented ??? */ 1069 sec_flags |= SEC_LINK_DUPLICATES_SAME_CONTENTS; 1070 break; 1071 1072 /* debug$S gets this case; other 1073 implications ??? */ 1074 1075 /* There may be no symbol... we'll search 1076 the whole table... Is this the right 1077 place to play this game? Or should we do 1078 it when reading it in. */ 1079 case IMAGE_COMDAT_SELECT_ASSOCIATIVE: 1080 #ifdef STRICT_PE_FORMAT 1081 /* FIXME: This is not currently implemented. */ 1082 sec_flags |= SEC_LINK_DUPLICATES_DISCARD; 1083 #else 1084 sec_flags &= ~SEC_LINK_ONCE; 1085 #endif 1086 break; 1087 1088 default: /* 0 means "no symbol" */ 1089 /* debug$F gets this case; other 1090 implications ??? */ 1091 sec_flags |= SEC_LINK_DUPLICATES_DISCARD; 1092 break; 1093 } 1094 } 1095 break; 1096 1097 case 2: 1098 /* Gas mode: the first matching on partial name. */ 1099 1100 #ifndef TARGET_UNDERSCORE 1101 #define TARGET_UNDERSCORE 0 1102 #endif 1103 /* Is this the name we're looking for ? */ 1104 if (strcmp (target_name, 1105 symname + (TARGET_UNDERSCORE ? 1 : 0)) != 0) 1106 { 1107 /* Not the name we're looking for */ 1108 esym += (isym.n_numaux + 1) * bfd_coff_symesz (abfd); 1109 continue; 1110 } 1111 /* Fall through. */ 1112 case 1: 1113 /* MSVC mode: the lexically second symbol (or 1114 drop through from the above). */ 1115 { 1116 char *newname; 1117 bfd_size_type amt; 1118 1119 /* This must the second symbol with the 1120 section #. It is the actual symbol name. 1121 Intel puts the two adjacent, but Alpha (at 1122 least) spreads them out. */ 1123 1124 amt = sizeof (struct coff_comdat_info); 1125 coff_section_data (abfd, section)->comdat 1126 = (struct coff_comdat_info *) bfd_alloc (abfd, amt); 1127 if (coff_section_data (abfd, section)->comdat == NULL) 1128 abort (); 1129 1130 coff_section_data (abfd, section)->comdat->symbol = 1131 (esym - esymstart) / bfd_coff_symesz (abfd); 1132 1133 amt = strlen (symname) + 1; 1134 newname = (char *) bfd_alloc (abfd, amt); 1135 if (newname == NULL) 1136 abort (); 1137 1138 strcpy (newname, symname); 1139 coff_section_data (abfd, section)->comdat->name 1140 = newname; 1141 } 1142 1143 goto breakloop; 1144 } 1145 } 1146 1147 esym += (isym.n_numaux + 1) * bfd_coff_symesz (abfd); 1148 } 1149 1150 breakloop: 1151 return sec_flags; 1152 } 1153 1154 1155 /* The PE version; see above for the general comments. 1156 1157 Since to set the SEC_LINK_ONCE and associated flags, we have to 1158 look at the symbol table anyway, we return the symbol table index 1159 of the symbol being used as the COMDAT symbol. This is admittedly 1160 ugly, but there's really nowhere else that we have access to the 1161 required information. FIXME: Is the COMDAT symbol index used for 1162 any purpose other than objdump? */ 1163 1164 static bfd_boolean 1165 styp_to_sec_flags (bfd *abfd, 1166 void * hdr, 1167 const char *name, 1168 asection *section, 1169 flagword *flags_ptr) 1170 { 1171 struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr; 1172 unsigned long styp_flags = internal_s->s_flags; 1173 flagword sec_flags; 1174 bfd_boolean result = TRUE; 1175 bfd_boolean is_dbg = FALSE; 1176 1177 if (CONST_STRNEQ (name, DOT_DEBUG) 1178 || CONST_STRNEQ (name, DOT_ZDEBUG) 1179 #ifdef COFF_LONG_SECTION_NAMES 1180 || CONST_STRNEQ (name, GNU_LINKONCE_WI) 1181 || CONST_STRNEQ (name, GNU_LINKONCE_WT) 1182 #endif 1183 || CONST_STRNEQ (name, ".stab")) 1184 is_dbg = TRUE; 1185 /* Assume read only unless IMAGE_SCN_MEM_WRITE is specified. */ 1186 sec_flags = SEC_READONLY; 1187 1188 /* If section disallows read, then set the NOREAD flag. */ 1189 if ((styp_flags & IMAGE_SCN_MEM_READ) == 0) 1190 sec_flags |= SEC_COFF_NOREAD; 1191 1192 /* Process each flag bit in styp_flags in turn. */ 1193 while (styp_flags) 1194 { 1195 unsigned long flag = styp_flags & - styp_flags; 1196 char * unhandled = NULL; 1197 1198 styp_flags &= ~ flag; 1199 1200 /* We infer from the distinct read/write/execute bits the settings 1201 of some of the bfd flags; the actual values, should we need them, 1202 are also in pei_section_data (abfd, section)->pe_flags. */ 1203 1204 switch (flag) 1205 { 1206 case STYP_DSECT: 1207 unhandled = "STYP_DSECT"; 1208 break; 1209 case STYP_GROUP: 1210 unhandled = "STYP_GROUP"; 1211 break; 1212 case STYP_COPY: 1213 unhandled = "STYP_COPY"; 1214 break; 1215 case STYP_OVER: 1216 unhandled = "STYP_OVER"; 1217 break; 1218 #ifdef SEC_NEVER_LOAD 1219 case STYP_NOLOAD: 1220 sec_flags |= SEC_NEVER_LOAD; 1221 break; 1222 #endif 1223 case IMAGE_SCN_MEM_READ: 1224 sec_flags &= ~SEC_COFF_NOREAD; 1225 break; 1226 case IMAGE_SCN_TYPE_NO_PAD: 1227 /* Skip. */ 1228 break; 1229 case IMAGE_SCN_LNK_OTHER: 1230 unhandled = "IMAGE_SCN_LNK_OTHER"; 1231 break; 1232 case IMAGE_SCN_MEM_NOT_CACHED: 1233 unhandled = "IMAGE_SCN_MEM_NOT_CACHED"; 1234 break; 1235 case IMAGE_SCN_MEM_NOT_PAGED: 1236 /* Generate a warning message rather using the 'unhandled' 1237 variable as this will allow some .sys files generate by 1238 other toolchains to be processed. See bugzilla issue 196. */ 1239 _bfd_error_handler (_("%B: Warning: Ignoring section flag IMAGE_SCN_MEM_NOT_PAGED in section %s"), 1240 abfd, name); 1241 break; 1242 case IMAGE_SCN_MEM_EXECUTE: 1243 sec_flags |= SEC_CODE; 1244 break; 1245 case IMAGE_SCN_MEM_WRITE: 1246 sec_flags &= ~ SEC_READONLY; 1247 break; 1248 case IMAGE_SCN_MEM_DISCARDABLE: 1249 /* The MS PE spec says that debug sections are DISCARDABLE, 1250 but the presence of a DISCARDABLE flag does not necessarily 1251 mean that a given section contains debug information. Thus 1252 we only set the SEC_DEBUGGING flag on sections that we 1253 recognise as containing debug information. */ 1254 if (is_dbg 1255 #ifdef _COMMENT 1256 || strcmp (name, _COMMENT) == 0 1257 #endif 1258 ) 1259 { 1260 sec_flags |= SEC_DEBUGGING | SEC_READONLY; 1261 } 1262 break; 1263 case IMAGE_SCN_MEM_SHARED: 1264 sec_flags |= SEC_COFF_SHARED; 1265 break; 1266 case IMAGE_SCN_LNK_REMOVE: 1267 if (!is_dbg) 1268 sec_flags |= SEC_EXCLUDE; 1269 break; 1270 case IMAGE_SCN_CNT_CODE: 1271 sec_flags |= SEC_CODE | SEC_ALLOC | SEC_LOAD; 1272 break; 1273 case IMAGE_SCN_CNT_INITIALIZED_DATA: 1274 if (is_dbg) 1275 sec_flags |= SEC_DEBUGGING; 1276 else 1277 sec_flags |= SEC_DATA | SEC_ALLOC | SEC_LOAD; 1278 break; 1279 case IMAGE_SCN_CNT_UNINITIALIZED_DATA: 1280 sec_flags |= SEC_ALLOC; 1281 break; 1282 case IMAGE_SCN_LNK_INFO: 1283 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is 1284 defined. coff_compute_section_file_positions uses 1285 COFF_PAGE_SIZE to ensure that the low order bits of the 1286 section VMA and the file offset match. If we don't know 1287 COFF_PAGE_SIZE, we can't ensure the correct correspondence, 1288 and demand page loading of the file will fail. */ 1289 #ifdef COFF_PAGE_SIZE 1290 sec_flags |= SEC_DEBUGGING; 1291 #endif 1292 break; 1293 case IMAGE_SCN_LNK_COMDAT: 1294 /* COMDAT gets very special treatment. */ 1295 sec_flags = handle_COMDAT (abfd, sec_flags, hdr, name, section); 1296 break; 1297 default: 1298 /* Silently ignore for now. */ 1299 break; 1300 } 1301 1302 /* If the section flag was not handled, report it here. */ 1303 if (unhandled != NULL) 1304 { 1305 (*_bfd_error_handler) 1306 (_("%B (%s): Section flag %s (0x%x) ignored"), 1307 abfd, name, unhandled, flag); 1308 result = FALSE; 1309 } 1310 } 1311 1312 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE) 1313 /* As a GNU extension, if the name begins with .gnu.linkonce, we 1314 only link a single copy of the section. This is used to support 1315 g++. g++ will emit each template expansion in its own section. 1316 The symbols will be defined as weak, so that multiple definitions 1317 are permitted. The GNU linker extension is to actually discard 1318 all but one of the sections. */ 1319 if (CONST_STRNEQ (name, ".gnu.linkonce")) 1320 sec_flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; 1321 #endif 1322 1323 if (flags_ptr) 1324 * flags_ptr = sec_flags; 1325 1326 return result; 1327 } 1328 1329 #endif /* COFF_WITH_PE */ 1330 1331 #define get_index(symbol) ((symbol)->udata.i) 1332 1333 /* 1334 INTERNAL_DEFINITION 1335 bfd_coff_backend_data 1336 1337 CODE_FRAGMENT 1338 1339 .{* COFF symbol classifications. *} 1340 . 1341 .enum coff_symbol_classification 1342 .{ 1343 . {* Global symbol. *} 1344 . COFF_SYMBOL_GLOBAL, 1345 . {* Common symbol. *} 1346 . COFF_SYMBOL_COMMON, 1347 . {* Undefined symbol. *} 1348 . COFF_SYMBOL_UNDEFINED, 1349 . {* Local symbol. *} 1350 . COFF_SYMBOL_LOCAL, 1351 . {* PE section symbol. *} 1352 . COFF_SYMBOL_PE_SECTION 1353 .}; 1354 . 1355 .typedef asection * (*coff_gc_mark_hook_fn) 1356 . (asection *, struct bfd_link_info *, struct internal_reloc *, 1357 . struct coff_link_hash_entry *, struct internal_syment *); 1358 . 1359 Special entry points for gdb to swap in coff symbol table parts: 1360 .typedef struct 1361 .{ 1362 . void (*_bfd_coff_swap_aux_in) 1363 . (bfd *, void *, int, int, int, int, void *); 1364 . 1365 . void (*_bfd_coff_swap_sym_in) 1366 . (bfd *, void *, void *); 1367 . 1368 . void (*_bfd_coff_swap_lineno_in) 1369 . (bfd *, void *, void *); 1370 . 1371 . unsigned int (*_bfd_coff_swap_aux_out) 1372 . (bfd *, void *, int, int, int, int, void *); 1373 . 1374 . unsigned int (*_bfd_coff_swap_sym_out) 1375 . (bfd *, void *, void *); 1376 . 1377 . unsigned int (*_bfd_coff_swap_lineno_out) 1378 . (bfd *, void *, void *); 1379 . 1380 . unsigned int (*_bfd_coff_swap_reloc_out) 1381 . (bfd *, void *, void *); 1382 . 1383 . unsigned int (*_bfd_coff_swap_filehdr_out) 1384 . (bfd *, void *, void *); 1385 . 1386 . unsigned int (*_bfd_coff_swap_aouthdr_out) 1387 . (bfd *, void *, void *); 1388 . 1389 . unsigned int (*_bfd_coff_swap_scnhdr_out) 1390 . (bfd *, void *, void *); 1391 . 1392 . unsigned int _bfd_filhsz; 1393 . unsigned int _bfd_aoutsz; 1394 . unsigned int _bfd_scnhsz; 1395 . unsigned int _bfd_symesz; 1396 . unsigned int _bfd_auxesz; 1397 . unsigned int _bfd_relsz; 1398 . unsigned int _bfd_linesz; 1399 . unsigned int _bfd_filnmlen; 1400 . bfd_boolean _bfd_coff_long_filenames; 1401 . 1402 . bfd_boolean _bfd_coff_long_section_names; 1403 . bfd_boolean (*_bfd_coff_set_long_section_names) 1404 . (bfd *, int); 1405 . 1406 . unsigned int _bfd_coff_default_section_alignment_power; 1407 . bfd_boolean _bfd_coff_force_symnames_in_strings; 1408 . unsigned int _bfd_coff_debug_string_prefix_length; 1409 . unsigned int _bfd_coff_max_nscns; 1410 . 1411 . void (*_bfd_coff_swap_filehdr_in) 1412 . (bfd *, void *, void *); 1413 . 1414 . void (*_bfd_coff_swap_aouthdr_in) 1415 . (bfd *, void *, void *); 1416 . 1417 . void (*_bfd_coff_swap_scnhdr_in) 1418 . (bfd *, void *, void *); 1419 . 1420 . void (*_bfd_coff_swap_reloc_in) 1421 . (bfd *abfd, void *, void *); 1422 . 1423 . bfd_boolean (*_bfd_coff_bad_format_hook) 1424 . (bfd *, void *); 1425 . 1426 . bfd_boolean (*_bfd_coff_set_arch_mach_hook) 1427 . (bfd *, void *); 1428 . 1429 . void * (*_bfd_coff_mkobject_hook) 1430 . (bfd *, void *, void *); 1431 . 1432 . bfd_boolean (*_bfd_styp_to_sec_flags_hook) 1433 . (bfd *, void *, const char *, asection *, flagword *); 1434 . 1435 . void (*_bfd_set_alignment_hook) 1436 . (bfd *, asection *, void *); 1437 . 1438 . bfd_boolean (*_bfd_coff_slurp_symbol_table) 1439 . (bfd *); 1440 . 1441 . bfd_boolean (*_bfd_coff_symname_in_debug) 1442 . (bfd *, struct internal_syment *); 1443 . 1444 . bfd_boolean (*_bfd_coff_pointerize_aux_hook) 1445 . (bfd *, combined_entry_type *, combined_entry_type *, 1446 . unsigned int, combined_entry_type *); 1447 . 1448 . bfd_boolean (*_bfd_coff_print_aux) 1449 . (bfd *, FILE *, combined_entry_type *, combined_entry_type *, 1450 . combined_entry_type *, unsigned int); 1451 . 1452 . void (*_bfd_coff_reloc16_extra_cases) 1453 . (bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *, 1454 . bfd_byte *, unsigned int *, unsigned int *); 1455 . 1456 . int (*_bfd_coff_reloc16_estimate) 1457 . (bfd *, asection *, arelent *, unsigned int, 1458 . struct bfd_link_info *); 1459 . 1460 . enum coff_symbol_classification (*_bfd_coff_classify_symbol) 1461 . (bfd *, struct internal_syment *); 1462 . 1463 . bfd_boolean (*_bfd_coff_compute_section_file_positions) 1464 . (bfd *); 1465 . 1466 . bfd_boolean (*_bfd_coff_start_final_link) 1467 . (bfd *, struct bfd_link_info *); 1468 . 1469 . bfd_boolean (*_bfd_coff_relocate_section) 1470 . (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, 1471 . struct internal_reloc *, struct internal_syment *, asection **); 1472 . 1473 . reloc_howto_type *(*_bfd_coff_rtype_to_howto) 1474 . (bfd *, asection *, struct internal_reloc *, 1475 . struct coff_link_hash_entry *, struct internal_syment *, 1476 . bfd_vma *); 1477 . 1478 . bfd_boolean (*_bfd_coff_adjust_symndx) 1479 . (bfd *, struct bfd_link_info *, bfd *, asection *, 1480 . struct internal_reloc *, bfd_boolean *); 1481 . 1482 . bfd_boolean (*_bfd_coff_link_add_one_symbol) 1483 . (struct bfd_link_info *, bfd *, const char *, flagword, 1484 . asection *, bfd_vma, const char *, bfd_boolean, bfd_boolean, 1485 . struct bfd_link_hash_entry **); 1486 . 1487 . bfd_boolean (*_bfd_coff_link_output_has_begun) 1488 . (bfd *, struct coff_final_link_info *); 1489 . 1490 . bfd_boolean (*_bfd_coff_final_link_postscript) 1491 . (bfd *, struct coff_final_link_info *); 1492 . 1493 . bfd_boolean (*_bfd_coff_print_pdata) 1494 . (bfd *, void *); 1495 . 1496 .} bfd_coff_backend_data; 1497 . 1498 .#define coff_backend_info(abfd) \ 1499 . ((bfd_coff_backend_data *) (abfd)->xvec->backend_data) 1500 . 1501 .#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \ 1502 . ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i)) 1503 . 1504 .#define bfd_coff_swap_sym_in(a,e,i) \ 1505 . ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i)) 1506 . 1507 .#define bfd_coff_swap_lineno_in(a,e,i) \ 1508 . ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i)) 1509 . 1510 .#define bfd_coff_swap_reloc_out(abfd, i, o) \ 1511 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o)) 1512 . 1513 .#define bfd_coff_swap_lineno_out(abfd, i, o) \ 1514 . ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o)) 1515 . 1516 .#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \ 1517 . ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o)) 1518 . 1519 .#define bfd_coff_swap_sym_out(abfd, i,o) \ 1520 . ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o)) 1521 . 1522 .#define bfd_coff_swap_scnhdr_out(abfd, i,o) \ 1523 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o)) 1524 . 1525 .#define bfd_coff_swap_filehdr_out(abfd, i,o) \ 1526 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o)) 1527 . 1528 .#define bfd_coff_swap_aouthdr_out(abfd, i,o) \ 1529 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o)) 1530 . 1531 .#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz) 1532 .#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz) 1533 .#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz) 1534 .#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz) 1535 .#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz) 1536 .#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz) 1537 .#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz) 1538 .#define bfd_coff_filnmlen(abfd) (coff_backend_info (abfd)->_bfd_filnmlen) 1539 .#define bfd_coff_long_filenames(abfd) \ 1540 . (coff_backend_info (abfd)->_bfd_coff_long_filenames) 1541 .#define bfd_coff_long_section_names(abfd) \ 1542 . (coff_backend_info (abfd)->_bfd_coff_long_section_names) 1543 .#define bfd_coff_set_long_section_names(abfd, enable) \ 1544 . ((coff_backend_info (abfd)->_bfd_coff_set_long_section_names) (abfd, enable)) 1545 .#define bfd_coff_default_section_alignment_power(abfd) \ 1546 . (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power) 1547 .#define bfd_coff_max_nscns(abfd) \ 1548 . (coff_backend_info (abfd)->_bfd_coff_max_nscns) 1549 . 1550 .#define bfd_coff_swap_filehdr_in(abfd, i,o) \ 1551 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o)) 1552 . 1553 .#define bfd_coff_swap_aouthdr_in(abfd, i,o) \ 1554 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o)) 1555 . 1556 .#define bfd_coff_swap_scnhdr_in(abfd, i,o) \ 1557 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o)) 1558 . 1559 .#define bfd_coff_swap_reloc_in(abfd, i, o) \ 1560 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o)) 1561 . 1562 .#define bfd_coff_bad_format_hook(abfd, filehdr) \ 1563 . ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr)) 1564 . 1565 .#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\ 1566 . ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr)) 1567 .#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\ 1568 . ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook)\ 1569 . (abfd, filehdr, aouthdr)) 1570 . 1571 .#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section, flags_ptr)\ 1572 . ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\ 1573 . (abfd, scnhdr, name, section, flags_ptr)) 1574 . 1575 .#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\ 1576 . ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr)) 1577 . 1578 .#define bfd_coff_slurp_symbol_table(abfd)\ 1579 . ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd)) 1580 . 1581 .#define bfd_coff_symname_in_debug(abfd, sym)\ 1582 . ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym)) 1583 . 1584 .#define bfd_coff_force_symnames_in_strings(abfd)\ 1585 . (coff_backend_info (abfd)->_bfd_coff_force_symnames_in_strings) 1586 . 1587 .#define bfd_coff_debug_string_prefix_length(abfd)\ 1588 . (coff_backend_info (abfd)->_bfd_coff_debug_string_prefix_length) 1589 . 1590 .#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\ 1591 . ((coff_backend_info (abfd)->_bfd_coff_print_aux)\ 1592 . (abfd, file, base, symbol, aux, indaux)) 1593 . 1594 .#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order,\ 1595 . reloc, data, src_ptr, dst_ptr)\ 1596 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\ 1597 . (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)) 1598 . 1599 .#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\ 1600 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\ 1601 . (abfd, section, reloc, shrink, link_info)) 1602 . 1603 .#define bfd_coff_classify_symbol(abfd, sym)\ 1604 . ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\ 1605 . (abfd, sym)) 1606 . 1607 .#define bfd_coff_compute_section_file_positions(abfd)\ 1608 . ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\ 1609 . (abfd)) 1610 . 1611 .#define bfd_coff_start_final_link(obfd, info)\ 1612 . ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\ 1613 . (obfd, info)) 1614 .#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\ 1615 . ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\ 1616 . (obfd, info, ibfd, o, con, rel, isyms, secs)) 1617 .#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\ 1618 . ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\ 1619 . (abfd, sec, rel, h, sym, addendp)) 1620 .#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\ 1621 . ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\ 1622 . (obfd, info, ibfd, sec, rel, adjustedp)) 1623 .#define bfd_coff_link_add_one_symbol(info, abfd, name, flags, section,\ 1624 . value, string, cp, coll, hashp)\ 1625 . ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\ 1626 . (info, abfd, name, flags, section, value, string, cp, coll, hashp)) 1627 . 1628 .#define bfd_coff_link_output_has_begun(a,p) \ 1629 . ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a, p)) 1630 .#define bfd_coff_final_link_postscript(a,p) \ 1631 . ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a, p)) 1632 . 1633 .#define bfd_coff_have_print_pdata(a) \ 1634 . (coff_backend_info (a)->_bfd_coff_print_pdata) 1635 .#define bfd_coff_print_pdata(a,p) \ 1636 . ((coff_backend_info (a)->_bfd_coff_print_pdata) (a, p)) 1637 . 1638 .{* Macro: Returns true if the bfd is a PE executable as opposed to a 1639 . PE object file. *} 1640 .#define bfd_pei_p(abfd) \ 1641 . (CONST_STRNEQ ((abfd)->xvec->name, "pei-")) 1642 */ 1643 1644 /* See whether the magic number matches. */ 1645 1646 static bfd_boolean 1647 coff_bad_format_hook (bfd * abfd ATTRIBUTE_UNUSED, void * filehdr) 1648 { 1649 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; 1650 1651 if (BADMAG (*internal_f)) 1652 return FALSE; 1653 1654 /* If the optional header is NULL or not the correct size then 1655 quit; the only difference I can see between m88k dgux headers (MC88DMAGIC) 1656 and Intel 960 readwrite headers (I960WRMAGIC) is that the 1657 optional header is of a different size. 1658 1659 But the mips keeps extra stuff in it's opthdr, so dont check 1660 when doing that. */ 1661 1662 #if defined(M88) || defined(I960) 1663 if (internal_f->f_opthdr != 0 && bfd_coff_aoutsz (abfd) != internal_f->f_opthdr) 1664 return FALSE; 1665 #endif 1666 1667 return TRUE; 1668 } 1669 1670 #ifdef TICOFF 1671 static bfd_boolean 1672 ticoff0_bad_format_hook (bfd *abfd ATTRIBUTE_UNUSED, void * filehdr) 1673 { 1674 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; 1675 1676 if (COFF0_BADMAG (*internal_f)) 1677 return FALSE; 1678 1679 return TRUE; 1680 } 1681 #endif 1682 1683 #ifdef TICOFF 1684 static bfd_boolean 1685 ticoff1_bad_format_hook (bfd *abfd ATTRIBUTE_UNUSED, void * filehdr) 1686 { 1687 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; 1688 1689 if (COFF1_BADMAG (*internal_f)) 1690 return FALSE; 1691 1692 return TRUE; 1693 } 1694 #endif 1695 1696 /* Check whether this section uses an alignment other than the 1697 default. */ 1698 1699 static void 1700 coff_set_custom_section_alignment (bfd *abfd ATTRIBUTE_UNUSED, 1701 asection *section, 1702 const struct coff_section_alignment_entry *alignment_table, 1703 const unsigned int table_size) 1704 { 1705 const unsigned int default_alignment = COFF_DEFAULT_SECTION_ALIGNMENT_POWER; 1706 unsigned int i; 1707 1708 for (i = 0; i < table_size; ++i) 1709 { 1710 const char *secname = bfd_get_section_name (abfd, section); 1711 1712 if (alignment_table[i].comparison_length == (unsigned int) -1 1713 ? strcmp (alignment_table[i].name, secname) == 0 1714 : strncmp (alignment_table[i].name, secname, 1715 alignment_table[i].comparison_length) == 0) 1716 break; 1717 } 1718 if (i >= table_size) 1719 return; 1720 1721 if (alignment_table[i].default_alignment_min != COFF_ALIGNMENT_FIELD_EMPTY 1722 && default_alignment < alignment_table[i].default_alignment_min) 1723 return; 1724 1725 if (alignment_table[i].default_alignment_max != COFF_ALIGNMENT_FIELD_EMPTY 1726 #if COFF_DEFAULT_SECTION_ALIGNMENT_POWER != 0 1727 && default_alignment > alignment_table[i].default_alignment_max 1728 #endif 1729 ) 1730 return; 1731 1732 section->alignment_power = alignment_table[i].alignment_power; 1733 } 1734 1735 /* Custom section alignment records. */ 1736 1737 static const struct coff_section_alignment_entry 1738 coff_section_alignment_table[] = 1739 { 1740 #ifdef COFF_SECTION_ALIGNMENT_ENTRIES 1741 COFF_SECTION_ALIGNMENT_ENTRIES, 1742 #endif 1743 /* There must not be any gaps between .stabstr sections. */ 1744 { COFF_SECTION_NAME_PARTIAL_MATCH (".stabstr"), 1745 1, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, 1746 /* The .stab section must be aligned to 2**2 at most, to avoid gaps. */ 1747 { COFF_SECTION_NAME_PARTIAL_MATCH (".stab"), 1748 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, 1749 /* Similarly for the .ctors and .dtors sections. */ 1750 { COFF_SECTION_NAME_EXACT_MATCH (".ctors"), 1751 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, 1752 { COFF_SECTION_NAME_EXACT_MATCH (".dtors"), 1753 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 } 1754 }; 1755 1756 static const unsigned int coff_section_alignment_table_size = 1757 sizeof coff_section_alignment_table / sizeof coff_section_alignment_table[0]; 1758 1759 /* Initialize a section structure with information peculiar to this 1760 particular implementation of COFF. */ 1761 1762 static bfd_boolean 1763 coff_new_section_hook (bfd * abfd, asection * section) 1764 { 1765 combined_entry_type *native; 1766 bfd_size_type amt; 1767 unsigned char sclass = C_STAT; 1768 1769 section->alignment_power = COFF_DEFAULT_SECTION_ALIGNMENT_POWER; 1770 1771 #ifdef RS6000COFF_C 1772 if (bfd_xcoff_text_align_power (abfd) != 0 1773 && strcmp (bfd_get_section_name (abfd, section), ".text") == 0) 1774 section->alignment_power = bfd_xcoff_text_align_power (abfd); 1775 else if (bfd_xcoff_data_align_power (abfd) != 0 1776 && strcmp (bfd_get_section_name (abfd, section), ".data") == 0) 1777 section->alignment_power = bfd_xcoff_data_align_power (abfd); 1778 else 1779 { 1780 int i; 1781 1782 for (i = 0; i < XCOFF_DWSECT_NBR_NAMES; i++) 1783 if (strcmp (bfd_get_section_name (abfd, section), 1784 xcoff_dwsect_names[i].name) == 0) 1785 { 1786 section->alignment_power = 0; 1787 sclass = C_DWARF; 1788 break; 1789 } 1790 } 1791 #endif 1792 1793 /* Set up the section symbol. */ 1794 if (!_bfd_generic_new_section_hook (abfd, section)) 1795 return FALSE; 1796 1797 /* Allocate aux records for section symbols, to store size and 1798 related info. 1799 1800 @@ The 10 is a guess at a plausible maximum number of aux entries 1801 (but shouldn't be a constant). */ 1802 amt = sizeof (combined_entry_type) * 10; 1803 native = (combined_entry_type *) bfd_zalloc (abfd, amt); 1804 if (native == NULL) 1805 return FALSE; 1806 1807 /* We don't need to set up n_name, n_value, or n_scnum in the native 1808 symbol information, since they'll be overridden by the BFD symbol 1809 anyhow. However, we do need to set the type and storage class, 1810 in case this symbol winds up getting written out. The value 0 1811 for n_numaux is already correct. */ 1812 1813 native->is_sym = TRUE; 1814 native->u.syment.n_type = T_NULL; 1815 native->u.syment.n_sclass = sclass; 1816 1817 coffsymbol (section->symbol)->native = native; 1818 1819 coff_set_custom_section_alignment (abfd, section, 1820 coff_section_alignment_table, 1821 coff_section_alignment_table_size); 1822 1823 return TRUE; 1824 } 1825 1826 #ifdef COFF_ALIGN_IN_SECTION_HEADER 1827 1828 /* Set the alignment of a BFD section. */ 1829 1830 static void 1831 coff_set_alignment_hook (bfd * abfd ATTRIBUTE_UNUSED, 1832 asection * section, 1833 void * scnhdr) 1834 { 1835 struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr; 1836 unsigned int i; 1837 1838 #ifdef I960 1839 /* Extract ALIGN from 2**ALIGN stored in section header. */ 1840 for (i = 0; i < 32; i++) 1841 if ((1 << i) >= hdr->s_align) 1842 break; 1843 #endif 1844 #ifdef TIC80COFF 1845 /* TI tools puts the alignment power in bits 8-11. */ 1846 i = (hdr->s_flags >> 8) & 0xF ; 1847 #endif 1848 #ifdef COFF_DECODE_ALIGNMENT 1849 i = COFF_DECODE_ALIGNMENT(hdr->s_flags); 1850 #endif 1851 section->alignment_power = i; 1852 1853 #ifdef coff_set_section_load_page 1854 coff_set_section_load_page (section, hdr->s_page); 1855 #endif 1856 } 1857 1858 #else /* ! COFF_ALIGN_IN_SECTION_HEADER */ 1859 #ifdef COFF_WITH_PE 1860 1861 static void 1862 coff_set_alignment_hook (bfd * abfd ATTRIBUTE_UNUSED, 1863 asection * section, 1864 void * scnhdr) 1865 { 1866 struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr; 1867 bfd_size_type amt; 1868 unsigned int alignment_power_const 1869 = hdr->s_flags & IMAGE_SCN_ALIGN_POWER_BIT_MASK; 1870 1871 switch (alignment_power_const) 1872 { 1873 case IMAGE_SCN_ALIGN_8192BYTES: 1874 case IMAGE_SCN_ALIGN_4096BYTES: 1875 case IMAGE_SCN_ALIGN_2048BYTES: 1876 case IMAGE_SCN_ALIGN_1024BYTES: 1877 case IMAGE_SCN_ALIGN_512BYTES: 1878 case IMAGE_SCN_ALIGN_256BYTES: 1879 case IMAGE_SCN_ALIGN_128BYTES: 1880 case IMAGE_SCN_ALIGN_64BYTES: 1881 case IMAGE_SCN_ALIGN_32BYTES: 1882 case IMAGE_SCN_ALIGN_16BYTES: 1883 case IMAGE_SCN_ALIGN_8BYTES: 1884 case IMAGE_SCN_ALIGN_4BYTES: 1885 case IMAGE_SCN_ALIGN_2BYTES: 1886 case IMAGE_SCN_ALIGN_1BYTES: 1887 section->alignment_power 1888 = IMAGE_SCN_ALIGN_POWER_NUM (alignment_power_const); 1889 break; 1890 default: 1891 break; 1892 } 1893 1894 /* In a PE image file, the s_paddr field holds the virtual size of a 1895 section, while the s_size field holds the raw size. We also keep 1896 the original section flag value, since not every bit can be 1897 mapped onto a generic BFD section bit. */ 1898 if (coff_section_data (abfd, section) == NULL) 1899 { 1900 amt = sizeof (struct coff_section_tdata); 1901 section->used_by_bfd = bfd_zalloc (abfd, amt); 1902 if (section->used_by_bfd == NULL) 1903 /* FIXME: Return error. */ 1904 abort (); 1905 } 1906 1907 if (pei_section_data (abfd, section) == NULL) 1908 { 1909 amt = sizeof (struct pei_section_tdata); 1910 coff_section_data (abfd, section)->tdata = bfd_zalloc (abfd, amt); 1911 if (coff_section_data (abfd, section)->tdata == NULL) 1912 /* FIXME: Return error. */ 1913 abort (); 1914 } 1915 pei_section_data (abfd, section)->virt_size = hdr->s_paddr; 1916 pei_section_data (abfd, section)->pe_flags = hdr->s_flags; 1917 1918 section->lma = hdr->s_vaddr; 1919 1920 /* Check for extended relocs. */ 1921 if (hdr->s_flags & IMAGE_SCN_LNK_NRELOC_OVFL) 1922 { 1923 struct external_reloc dst; 1924 struct internal_reloc n; 1925 file_ptr oldpos = bfd_tell (abfd); 1926 bfd_size_type relsz = bfd_coff_relsz (abfd); 1927 1928 if (bfd_seek (abfd, (file_ptr) hdr->s_relptr, 0) != 0) 1929 return; 1930 if (bfd_bread (& dst, relsz, abfd) != relsz) 1931 return; 1932 1933 coff_swap_reloc_in (abfd, &dst, &n); 1934 if (bfd_seek (abfd, oldpos, 0) != 0) 1935 return; 1936 section->reloc_count = hdr->s_nreloc = n.r_vaddr - 1; 1937 section->rel_filepos += relsz; 1938 } 1939 else if (hdr->s_nreloc == 0xffff) 1940 (*_bfd_error_handler) 1941 ("%s: warning: claims to have 0xffff relocs, without overflow", 1942 bfd_get_filename (abfd)); 1943 } 1944 #undef ALIGN_SET 1945 #undef ELIFALIGN_SET 1946 1947 #else /* ! COFF_WITH_PE */ 1948 #ifdef RS6000COFF_C 1949 1950 /* We grossly abuse this function to handle XCOFF overflow headers. 1951 When we see one, we correct the reloc and line number counts in the 1952 real header, and remove the section we just created. */ 1953 1954 static void 1955 coff_set_alignment_hook (bfd *abfd, asection *section, void * scnhdr) 1956 { 1957 struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr; 1958 asection *real_sec; 1959 1960 if ((hdr->s_flags & STYP_OVRFLO) == 0) 1961 return; 1962 1963 real_sec = coff_section_from_bfd_index (abfd, (int) hdr->s_nreloc); 1964 if (real_sec == NULL) 1965 return; 1966 1967 real_sec->reloc_count = hdr->s_paddr; 1968 real_sec->lineno_count = hdr->s_vaddr; 1969 1970 if (!bfd_section_removed_from_list (abfd, section)) 1971 { 1972 bfd_section_list_remove (abfd, section); 1973 --abfd->section_count; 1974 } 1975 } 1976 1977 #else /* ! RS6000COFF_C */ 1978 1979 #define coff_set_alignment_hook \ 1980 ((void (*) (bfd *, asection *, void *)) bfd_void) 1981 1982 #endif /* ! RS6000COFF_C */ 1983 #endif /* ! COFF_WITH_PE */ 1984 #endif /* ! COFF_ALIGN_IN_SECTION_HEADER */ 1985 1986 #ifndef coff_mkobject 1987 1988 static bfd_boolean 1989 coff_mkobject (bfd * abfd) 1990 { 1991 coff_data_type *coff; 1992 bfd_size_type amt = sizeof (coff_data_type); 1993 1994 abfd->tdata.coff_obj_data = bfd_zalloc (abfd, amt); 1995 if (abfd->tdata.coff_obj_data == NULL) 1996 return FALSE; 1997 coff = coff_data (abfd); 1998 coff->symbols = NULL; 1999 coff->conversion_table = NULL; 2000 coff->raw_syments = NULL; 2001 coff->relocbase = 0; 2002 coff->local_toc_sym_map = 0; 2003 2004 /* make_abs_section(abfd);*/ 2005 2006 return TRUE; 2007 } 2008 #endif 2009 2010 /* Create the COFF backend specific information. */ 2011 2012 #ifndef coff_mkobject_hook 2013 static void * 2014 coff_mkobject_hook (bfd * abfd, 2015 void * filehdr, 2016 void * aouthdr ATTRIBUTE_UNUSED) 2017 { 2018 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; 2019 coff_data_type *coff; 2020 2021 if (! coff_mkobject (abfd)) 2022 return NULL; 2023 2024 coff = coff_data (abfd); 2025 2026 coff->sym_filepos = internal_f->f_symptr; 2027 2028 /* These members communicate important constants about the symbol 2029 table to GDB's symbol-reading code. These `constants' 2030 unfortunately vary among coff implementations... */ 2031 coff->local_n_btmask = N_BTMASK; 2032 coff->local_n_btshft = N_BTSHFT; 2033 coff->local_n_tmask = N_TMASK; 2034 coff->local_n_tshift = N_TSHIFT; 2035 coff->local_symesz = bfd_coff_symesz (abfd); 2036 coff->local_auxesz = bfd_coff_auxesz (abfd); 2037 coff->local_linesz = bfd_coff_linesz (abfd); 2038 2039 coff->timestamp = internal_f->f_timdat; 2040 2041 obj_raw_syment_count (abfd) = 2042 obj_conv_table_size (abfd) = 2043 internal_f->f_nsyms; 2044 2045 #ifdef RS6000COFF_C 2046 if ((internal_f->f_flags & F_SHROBJ) != 0) 2047 abfd->flags |= DYNAMIC; 2048 if (aouthdr != NULL && internal_f->f_opthdr >= bfd_coff_aoutsz (abfd)) 2049 { 2050 struct internal_aouthdr *internal_a = 2051 (struct internal_aouthdr *) aouthdr; 2052 struct xcoff_tdata *xcoff; 2053 2054 xcoff = xcoff_data (abfd); 2055 # ifdef U803XTOCMAGIC 2056 xcoff->xcoff64 = internal_f->f_magic == U803XTOCMAGIC; 2057 # else 2058 xcoff->xcoff64 = 0; 2059 # endif 2060 xcoff->full_aouthdr = TRUE; 2061 xcoff->toc = internal_a->o_toc; 2062 xcoff->sntoc = internal_a->o_sntoc; 2063 xcoff->snentry = internal_a->o_snentry; 2064 bfd_xcoff_text_align_power (abfd) = internal_a->o_algntext; 2065 bfd_xcoff_data_align_power (abfd) = internal_a->o_algndata; 2066 xcoff->modtype = internal_a->o_modtype; 2067 xcoff->cputype = internal_a->o_cputype; 2068 xcoff->maxdata = internal_a->o_maxdata; 2069 xcoff->maxstack = internal_a->o_maxstack; 2070 } 2071 #endif 2072 2073 #ifdef ARM 2074 /* Set the flags field from the COFF header read in. */ 2075 if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags)) 2076 coff->flags = 0; 2077 #endif 2078 2079 #ifdef COFF_WITH_PE 2080 /* FIXME: I'm not sure this is ever executed, since peicode.h 2081 defines coff_mkobject_hook. */ 2082 if ((internal_f->f_flags & IMAGE_FILE_DEBUG_STRIPPED) == 0) 2083 abfd->flags |= HAS_DEBUG; 2084 #endif 2085 2086 if ((internal_f->f_flags & F_GO32STUB) != 0) 2087 { 2088 coff->go32stub = (char *) bfd_alloc (abfd, (bfd_size_type) GO32_STUBSIZE); 2089 if (coff->go32stub == NULL) 2090 return NULL; 2091 } 2092 if (coff->go32stub != NULL) 2093 memcpy (coff->go32stub, internal_f->go32stub, GO32_STUBSIZE); 2094 2095 return coff; 2096 } 2097 #endif 2098 2099 /* Determine the machine architecture and type. FIXME: This is target 2100 dependent because the magic numbers are defined in the target 2101 dependent header files. But there is no particular need for this. 2102 If the magic numbers were moved to a separate file, this function 2103 would be target independent and would also be much more successful 2104 at linking together COFF files for different architectures. */ 2105 2106 static bfd_boolean 2107 coff_set_arch_mach_hook (bfd *abfd, void * filehdr) 2108 { 2109 unsigned long machine; 2110 enum bfd_architecture arch; 2111 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; 2112 2113 /* Zero selects the default machine for an arch. */ 2114 machine = 0; 2115 switch (internal_f->f_magic) 2116 { 2117 #ifdef PPCMAGIC 2118 case PPCMAGIC: 2119 arch = bfd_arch_powerpc; 2120 break; 2121 #endif 2122 #ifdef I386MAGIC 2123 case I386MAGIC: 2124 case I386PTXMAGIC: 2125 case I386AIXMAGIC: /* Danbury PS/2 AIX C Compiler. */ 2126 case LYNXCOFFMAGIC: /* Shadows the m68k Lynx number below, sigh. */ 2127 arch = bfd_arch_i386; 2128 break; 2129 #endif 2130 #ifdef AMD64MAGIC 2131 case AMD64MAGIC: 2132 arch = bfd_arch_i386; 2133 machine = bfd_mach_x86_64; 2134 break; 2135 #endif 2136 #ifdef IA64MAGIC 2137 case IA64MAGIC: 2138 arch = bfd_arch_ia64; 2139 break; 2140 #endif 2141 #ifdef ARMMAGIC 2142 case ARMMAGIC: 2143 case ARMPEMAGIC: 2144 case THUMBPEMAGIC: 2145 arch = bfd_arch_arm; 2146 machine = bfd_arm_get_mach_from_notes (abfd, ARM_NOTE_SECTION); 2147 if (machine == bfd_mach_arm_unknown) 2148 { 2149 switch (internal_f->f_flags & F_ARM_ARCHITECTURE_MASK) 2150 { 2151 case F_ARM_2: machine = bfd_mach_arm_2; break; 2152 case F_ARM_2a: machine = bfd_mach_arm_2a; break; 2153 case F_ARM_3: machine = bfd_mach_arm_3; break; 2154 default: 2155 case F_ARM_3M: machine = bfd_mach_arm_3M; break; 2156 case F_ARM_4: machine = bfd_mach_arm_4; break; 2157 case F_ARM_4T: machine = bfd_mach_arm_4T; break; 2158 /* The COFF header does not have enough bits available 2159 to cover all the different ARM architectures. So 2160 we interpret F_ARM_5, the highest flag value to mean 2161 "the highest ARM architecture known to BFD" which is 2162 currently the XScale. */ 2163 case F_ARM_5: machine = bfd_mach_arm_XScale; break; 2164 } 2165 } 2166 break; 2167 #endif 2168 #ifdef MC68MAGIC 2169 case MC68MAGIC: 2170 case M68MAGIC: 2171 #ifdef MC68KBCSMAGIC 2172 case MC68KBCSMAGIC: 2173 #endif 2174 #ifdef APOLLOM68KMAGIC 2175 case APOLLOM68KMAGIC: 2176 #endif 2177 #ifdef LYNXCOFFMAGIC 2178 case LYNXCOFFMAGIC: 2179 #endif 2180 arch = bfd_arch_m68k; 2181 machine = bfd_mach_m68020; 2182 break; 2183 #endif 2184 #ifdef MC88MAGIC 2185 case MC88MAGIC: 2186 case MC88DMAGIC: 2187 case MC88OMAGIC: 2188 arch = bfd_arch_m88k; 2189 machine = 88100; 2190 break; 2191 #endif 2192 #ifdef Z80MAGIC 2193 case Z80MAGIC: 2194 arch = bfd_arch_z80; 2195 switch (internal_f->f_flags & F_MACHMASK) 2196 { 2197 case 0: 2198 case bfd_mach_z80strict << 12: 2199 case bfd_mach_z80 << 12: 2200 case bfd_mach_z80full << 12: 2201 case bfd_mach_r800 << 12: 2202 machine = ((unsigned)internal_f->f_flags & F_MACHMASK) >> 12; 2203 break; 2204 default: 2205 return FALSE; 2206 } 2207 break; 2208 #endif 2209 #ifdef Z8KMAGIC 2210 case Z8KMAGIC: 2211 arch = bfd_arch_z8k; 2212 switch (internal_f->f_flags & F_MACHMASK) 2213 { 2214 case F_Z8001: 2215 machine = bfd_mach_z8001; 2216 break; 2217 case F_Z8002: 2218 machine = bfd_mach_z8002; 2219 break; 2220 default: 2221 return FALSE; 2222 } 2223 break; 2224 #endif 2225 #ifdef I860 2226 case I860MAGIC: 2227 arch = bfd_arch_i860; 2228 break; 2229 #endif 2230 #ifdef I960 2231 #ifdef I960ROMAGIC 2232 case I960ROMAGIC: 2233 case I960RWMAGIC: 2234 arch = bfd_arch_i960; 2235 switch (F_I960TYPE & internal_f->f_flags) 2236 { 2237 default: 2238 case F_I960CORE: 2239 machine = bfd_mach_i960_core; 2240 break; 2241 case F_I960KB: 2242 machine = bfd_mach_i960_kb_sb; 2243 break; 2244 case F_I960MC: 2245 machine = bfd_mach_i960_mc; 2246 break; 2247 case F_I960XA: 2248 machine = bfd_mach_i960_xa; 2249 break; 2250 case F_I960CA: 2251 machine = bfd_mach_i960_ca; 2252 break; 2253 case F_I960KA: 2254 machine = bfd_mach_i960_ka_sa; 2255 break; 2256 case F_I960JX: 2257 machine = bfd_mach_i960_jx; 2258 break; 2259 case F_I960HX: 2260 machine = bfd_mach_i960_hx; 2261 break; 2262 } 2263 break; 2264 #endif 2265 #endif 2266 2267 #ifdef RS6000COFF_C 2268 #ifdef XCOFF64 2269 case U64_TOCMAGIC: 2270 case U803XTOCMAGIC: 2271 #else 2272 case U802ROMAGIC: 2273 case U802WRMAGIC: 2274 case U802TOCMAGIC: 2275 #endif 2276 { 2277 int cputype; 2278 2279 if (xcoff_data (abfd)->cputype != -1) 2280 cputype = xcoff_data (abfd)->cputype & 0xff; 2281 else 2282 { 2283 /* We did not get a value from the a.out header. If the 2284 file has not been stripped, we may be able to get the 2285 architecture information from the first symbol, if it 2286 is a .file symbol. */ 2287 if (obj_raw_syment_count (abfd) == 0) 2288 cputype = 0; 2289 else 2290 { 2291 bfd_byte *buf; 2292 struct internal_syment sym; 2293 bfd_size_type amt = bfd_coff_symesz (abfd); 2294 2295 buf = bfd_malloc (amt); 2296 if (buf == NULL) 2297 return FALSE; 2298 if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0 2299 || bfd_bread (buf, amt, abfd) != amt) 2300 { 2301 free (buf); 2302 return FALSE; 2303 } 2304 bfd_coff_swap_sym_in (abfd, buf, & sym); 2305 if (sym.n_sclass == C_FILE) 2306 cputype = sym.n_type & 0xff; 2307 else 2308 cputype = 0; 2309 free (buf); 2310 } 2311 } 2312 2313 /* FIXME: We don't handle all cases here. */ 2314 switch (cputype) 2315 { 2316 default: 2317 case 0: 2318 arch = bfd_xcoff_architecture (abfd); 2319 machine = bfd_xcoff_machine (abfd); 2320 break; 2321 2322 case 1: 2323 arch = bfd_arch_powerpc; 2324 machine = bfd_mach_ppc_601; 2325 break; 2326 case 2: /* 64 bit PowerPC */ 2327 arch = bfd_arch_powerpc; 2328 machine = bfd_mach_ppc_620; 2329 break; 2330 case 3: 2331 arch = bfd_arch_powerpc; 2332 machine = bfd_mach_ppc; 2333 break; 2334 case 4: 2335 arch = bfd_arch_rs6000; 2336 machine = bfd_mach_rs6k; 2337 break; 2338 } 2339 } 2340 break; 2341 #endif 2342 2343 #ifdef WE32KMAGIC 2344 case WE32KMAGIC: 2345 arch = bfd_arch_we32k; 2346 break; 2347 #endif 2348 2349 #ifdef H8300MAGIC 2350 case H8300MAGIC: 2351 arch = bfd_arch_h8300; 2352 machine = bfd_mach_h8300; 2353 /* !! FIXME this probably isn't the right place for this. */ 2354 abfd->flags |= BFD_IS_RELAXABLE; 2355 break; 2356 #endif 2357 2358 #ifdef H8300HMAGIC 2359 case H8300HMAGIC: 2360 arch = bfd_arch_h8300; 2361 machine = bfd_mach_h8300h; 2362 /* !! FIXME this probably isn't the right place for this. */ 2363 abfd->flags |= BFD_IS_RELAXABLE; 2364 break; 2365 #endif 2366 2367 #ifdef H8300SMAGIC 2368 case H8300SMAGIC: 2369 arch = bfd_arch_h8300; 2370 machine = bfd_mach_h8300s; 2371 /* !! FIXME this probably isn't the right place for this. */ 2372 abfd->flags |= BFD_IS_RELAXABLE; 2373 break; 2374 #endif 2375 2376 #ifdef H8300HNMAGIC 2377 case H8300HNMAGIC: 2378 arch = bfd_arch_h8300; 2379 machine = bfd_mach_h8300hn; 2380 /* !! FIXME this probably isn't the right place for this. */ 2381 abfd->flags |= BFD_IS_RELAXABLE; 2382 break; 2383 #endif 2384 2385 #ifdef H8300SNMAGIC 2386 case H8300SNMAGIC: 2387 arch = bfd_arch_h8300; 2388 machine = bfd_mach_h8300sn; 2389 /* !! FIXME this probably isn't the right place for this. */ 2390 abfd->flags |= BFD_IS_RELAXABLE; 2391 break; 2392 #endif 2393 2394 #ifdef SH_ARCH_MAGIC_BIG 2395 case SH_ARCH_MAGIC_BIG: 2396 case SH_ARCH_MAGIC_LITTLE: 2397 #ifdef COFF_WITH_PE 2398 case SH_ARCH_MAGIC_WINCE: 2399 #endif 2400 arch = bfd_arch_sh; 2401 break; 2402 #endif 2403 2404 #ifdef MIPS_ARCH_MAGIC_WINCE 2405 case MIPS_ARCH_MAGIC_WINCE: 2406 arch = bfd_arch_mips; 2407 break; 2408 #endif 2409 2410 #ifdef H8500MAGIC 2411 case H8500MAGIC: 2412 arch = bfd_arch_h8500; 2413 break; 2414 #endif 2415 2416 #ifdef SPARCMAGIC 2417 case SPARCMAGIC: 2418 #ifdef LYNXCOFFMAGIC 2419 case LYNXCOFFMAGIC: 2420 #endif 2421 arch = bfd_arch_sparc; 2422 break; 2423 #endif 2424 2425 #ifdef TIC30MAGIC 2426 case TIC30MAGIC: 2427 arch = bfd_arch_tic30; 2428 break; 2429 #endif 2430 2431 #ifdef TICOFF0MAGIC 2432 #ifdef TICOFF_TARGET_ARCH 2433 /* This TI COFF section should be used by all new TI COFF v0 targets. */ 2434 case TICOFF0MAGIC: 2435 arch = TICOFF_TARGET_ARCH; 2436 machine = TICOFF_TARGET_MACHINE_GET (internal_f->f_flags); 2437 break; 2438 #endif 2439 #endif 2440 2441 #ifdef TICOFF1MAGIC 2442 /* This TI COFF section should be used by all new TI COFF v1/2 targets. */ 2443 /* TI COFF1 and COFF2 use the target_id field to specify which arch. */ 2444 case TICOFF1MAGIC: 2445 case TICOFF2MAGIC: 2446 switch (internal_f->f_target_id) 2447 { 2448 #ifdef TI_TARGET_ID 2449 case TI_TARGET_ID: 2450 arch = TICOFF_TARGET_ARCH; 2451 machine = TICOFF_TARGET_MACHINE_GET (internal_f->f_flags); 2452 break; 2453 #endif 2454 default: 2455 arch = bfd_arch_obscure; 2456 (*_bfd_error_handler) 2457 (_("Unrecognized TI COFF target id '0x%x'"), 2458 internal_f->f_target_id); 2459 break; 2460 } 2461 break; 2462 #endif 2463 2464 #ifdef TIC80_ARCH_MAGIC 2465 case TIC80_ARCH_MAGIC: 2466 arch = bfd_arch_tic80; 2467 break; 2468 #endif 2469 2470 #ifdef MCOREMAGIC 2471 case MCOREMAGIC: 2472 arch = bfd_arch_mcore; 2473 break; 2474 #endif 2475 2476 #ifdef W65MAGIC 2477 case W65MAGIC: 2478 arch = bfd_arch_w65; 2479 break; 2480 #endif 2481 2482 default: /* Unreadable input file type. */ 2483 arch = bfd_arch_obscure; 2484 break; 2485 } 2486 2487 bfd_default_set_arch_mach (abfd, arch, machine); 2488 return TRUE; 2489 } 2490 2491 #ifdef SYMNAME_IN_DEBUG 2492 2493 static bfd_boolean 2494 symname_in_debug_hook (bfd * abfd ATTRIBUTE_UNUSED, struct internal_syment *sym) 2495 { 2496 return SYMNAME_IN_DEBUG (sym) != 0; 2497 } 2498 2499 #else 2500 2501 #define symname_in_debug_hook \ 2502 (bfd_boolean (*) (bfd *, struct internal_syment *)) bfd_false 2503 2504 #endif 2505 2506 #ifdef RS6000COFF_C 2507 2508 #ifdef XCOFF64 2509 #define FORCE_SYMNAMES_IN_STRINGS 2510 #endif 2511 2512 /* Handle the csect auxent of a C_EXT, C_AIX_WEAKEXT or C_HIDEXT symbol. */ 2513 2514 static bfd_boolean 2515 coff_pointerize_aux_hook (bfd *abfd ATTRIBUTE_UNUSED, 2516 combined_entry_type *table_base, 2517 combined_entry_type *symbol, 2518 unsigned int indaux, 2519 combined_entry_type *aux) 2520 { 2521 BFD_ASSERT (symbol->is_sym); 2522 int n_sclass = symbol->u.syment.n_sclass; 2523 2524 if (CSECT_SYM_P (n_sclass) 2525 && indaux + 1 == symbol->u.syment.n_numaux) 2526 { 2527 BFD_ASSERT (! aux->is_sym); 2528 if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) == XTY_LD) 2529 { 2530 aux->u.auxent.x_csect.x_scnlen.p = 2531 table_base + aux->u.auxent.x_csect.x_scnlen.l; 2532 aux->fix_scnlen = 1; 2533 } 2534 2535 /* Return TRUE to indicate that the caller should not do any 2536 further work on this auxent. */ 2537 return TRUE; 2538 } 2539 2540 /* Return FALSE to indicate that this auxent should be handled by 2541 the caller. */ 2542 return FALSE; 2543 } 2544 2545 #else 2546 #ifdef I960 2547 2548 /* We don't want to pointerize bal entries. */ 2549 2550 static bfd_boolean 2551 coff_pointerize_aux_hook (bfd *abfd ATTRIBUTE_UNUSED, 2552 combined_entry_type *table_base ATTRIBUTE_UNUSED, 2553 combined_entry_type *symbol, 2554 unsigned int indaux, 2555 combined_entry_type *aux ATTRIBUTE_UNUSED) 2556 { 2557 /* Return TRUE if we don't want to pointerize this aux entry, which 2558 is the case for the lastfirst aux entry for a C_LEAFPROC symbol. */ 2559 return (indaux == 1 2560 && symbol->is_sym 2561 && (symbol->u.syment.n_sclass == C_LEAFPROC 2562 || symbol->u.syment.n_sclass == C_LEAFSTAT 2563 || symbol->u.syment.n_sclass == C_LEAFEXT)); 2564 } 2565 2566 #else /* ! I960 */ 2567 2568 #define coff_pointerize_aux_hook 0 2569 2570 #endif /* ! I960 */ 2571 #endif /* ! RS6000COFF_C */ 2572 2573 /* Print an aux entry. This returns TRUE if it has printed it. */ 2574 2575 static bfd_boolean 2576 coff_print_aux (bfd *abfd ATTRIBUTE_UNUSED, 2577 FILE *file ATTRIBUTE_UNUSED, 2578 combined_entry_type *table_base ATTRIBUTE_UNUSED, 2579 combined_entry_type *symbol ATTRIBUTE_UNUSED, 2580 combined_entry_type *aux ATTRIBUTE_UNUSED, 2581 unsigned int indaux ATTRIBUTE_UNUSED) 2582 { 2583 BFD_ASSERT (symbol->is_sym); 2584 BFD_ASSERT (! aux->is_sym); 2585 #ifdef RS6000COFF_C 2586 if (CSECT_SYM_P (symbol->u.syment.n_sclass) 2587 && indaux + 1 == symbol->u.syment.n_numaux) 2588 { 2589 /* This is a csect entry. */ 2590 fprintf (file, "AUX "); 2591 if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) != XTY_LD) 2592 { 2593 BFD_ASSERT (! aux->fix_scnlen); 2594 #ifdef XCOFF64 2595 fprintf (file, "val %5lld", 2596 (long long) aux->u.auxent.x_csect.x_scnlen.l); 2597 #else 2598 fprintf (file, "val %5ld", (long) aux->u.auxent.x_csect.x_scnlen.l); 2599 #endif 2600 } 2601 else 2602 { 2603 fprintf (file, "indx "); 2604 if (! aux->fix_scnlen) 2605 #ifdef XCOFF64 2606 fprintf (file, "%4lld", 2607 (long long) aux->u.auxent.x_csect.x_scnlen.l); 2608 #else 2609 fprintf (file, "%4ld", (long) aux->u.auxent.x_csect.x_scnlen.l); 2610 #endif 2611 else 2612 fprintf (file, "%4ld", 2613 (long) (aux->u.auxent.x_csect.x_scnlen.p - table_base)); 2614 } 2615 fprintf (file, 2616 " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u", 2617 aux->u.auxent.x_csect.x_parmhash, 2618 (unsigned int) aux->u.auxent.x_csect.x_snhash, 2619 SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp), 2620 SMTYP_ALIGN (aux->u.auxent.x_csect.x_smtyp), 2621 (unsigned int) aux->u.auxent.x_csect.x_smclas, 2622 aux->u.auxent.x_csect.x_stab, 2623 (unsigned int) aux->u.auxent.x_csect.x_snstab); 2624 return TRUE; 2625 } 2626 #endif 2627 2628 /* Return FALSE to indicate that no special action was taken. */ 2629 return FALSE; 2630 } 2631 2632 /* 2633 SUBSUBSECTION 2634 Writing relocations 2635 2636 To write relocations, the back end steps though the 2637 canonical relocation table and create an 2638 @code{internal_reloc}. The symbol index to use is removed from 2639 the @code{offset} field in the symbol table supplied. The 2640 address comes directly from the sum of the section base 2641 address and the relocation offset; the type is dug directly 2642 from the howto field. Then the @code{internal_reloc} is 2643 swapped into the shape of an @code{external_reloc} and written 2644 out to disk. 2645 2646 */ 2647 2648 #ifdef TARG_AUX 2649 2650 2651 /* AUX's ld wants relocations to be sorted. */ 2652 static int 2653 compare_arelent_ptr (const void * x, const void * y) 2654 { 2655 const arelent **a = (const arelent **) x; 2656 const arelent **b = (const arelent **) y; 2657 bfd_size_type aadr = (*a)->address; 2658 bfd_size_type badr = (*b)->address; 2659 2660 return (aadr < badr ? -1 : badr < aadr ? 1 : 0); 2661 } 2662 2663 #endif /* TARG_AUX */ 2664 2665 static bfd_boolean 2666 coff_write_relocs (bfd * abfd, int first_undef) 2667 { 2668 asection *s; 2669 2670 for (s = abfd->sections; s != NULL; s = s->next) 2671 { 2672 unsigned int i; 2673 struct external_reloc dst; 2674 arelent **p; 2675 2676 #ifndef TARG_AUX 2677 p = s->orelocation; 2678 #else 2679 { 2680 /* Sort relocations before we write them out. */ 2681 bfd_size_type amt; 2682 2683 amt = s->reloc_count; 2684 amt *= sizeof (arelent *); 2685 p = bfd_malloc (amt); 2686 if (p == NULL) 2687 { 2688 if (s->reloc_count > 0) 2689 return FALSE; 2690 } 2691 else 2692 { 2693 memcpy (p, s->orelocation, (size_t) amt); 2694 qsort (p, s->reloc_count, sizeof (arelent *), compare_arelent_ptr); 2695 } 2696 } 2697 #endif 2698 2699 if (bfd_seek (abfd, s->rel_filepos, SEEK_SET) != 0) 2700 return FALSE; 2701 2702 #ifdef COFF_WITH_PE 2703 if (obj_pe (abfd) && s->reloc_count >= 0xffff) 2704 { 2705 /* Encode real count here as first reloc. */ 2706 struct internal_reloc n; 2707 2708 memset (& n, 0, sizeof (n)); 2709 /* Add one to count *this* reloc (grr). */ 2710 n.r_vaddr = s->reloc_count + 1; 2711 coff_swap_reloc_out (abfd, &n, &dst); 2712 if (bfd_bwrite (& dst, (bfd_size_type) bfd_coff_relsz (abfd), 2713 abfd) != bfd_coff_relsz (abfd)) 2714 return FALSE; 2715 } 2716 #endif 2717 2718 for (i = 0; i < s->reloc_count; i++) 2719 { 2720 struct internal_reloc n; 2721 arelent *q = p[i]; 2722 2723 memset (& n, 0, sizeof (n)); 2724 2725 /* Now we've renumbered the symbols we know where the 2726 undefined symbols live in the table. Check the reloc 2727 entries for symbols who's output bfd isn't the right one. 2728 This is because the symbol was undefined (which means 2729 that all the pointers are never made to point to the same 2730 place). This is a bad thing,'cause the symbols attached 2731 to the output bfd are indexed, so that the relocation 2732 entries know which symbol index they point to. So we 2733 have to look up the output symbol here. */ 2734 2735 if (q->sym_ptr_ptr[0] != NULL && q->sym_ptr_ptr[0]->the_bfd != abfd) 2736 { 2737 int j; 2738 const char *sname = q->sym_ptr_ptr[0]->name; 2739 asymbol **outsyms = abfd->outsymbols; 2740 2741 for (j = first_undef; outsyms[j]; j++) 2742 { 2743 const char *intable = outsyms[j]->name; 2744 2745 if (strcmp (intable, sname) == 0) 2746 { 2747 /* Got a hit, so repoint the reloc. */ 2748 q->sym_ptr_ptr = outsyms + j; 2749 break; 2750 } 2751 } 2752 } 2753 2754 n.r_vaddr = q->address + s->vma; 2755 2756 #ifdef R_IHCONST 2757 /* The 29k const/consth reloc pair is a real kludge. The consth 2758 part doesn't have a symbol; it has an offset. So rebuilt 2759 that here. */ 2760 if (q->howto->type == R_IHCONST) 2761 n.r_symndx = q->addend; 2762 else 2763 #endif 2764 if (q->sym_ptr_ptr && q->sym_ptr_ptr[0] != NULL) 2765 { 2766 #ifdef SECTION_RELATIVE_ABSOLUTE_SYMBOL_P 2767 if (SECTION_RELATIVE_ABSOLUTE_SYMBOL_P (q, s)) 2768 #else 2769 if ((*q->sym_ptr_ptr)->section == bfd_abs_section_ptr 2770 && ((*q->sym_ptr_ptr)->flags & BSF_SECTION_SYM) != 0) 2771 #endif 2772 /* This is a relocation relative to the absolute symbol. */ 2773 n.r_symndx = -1; 2774 else 2775 { 2776 n.r_symndx = get_index ((*(q->sym_ptr_ptr))); 2777 /* Check to see if the symbol reloc points to a symbol 2778 we don't have in our symbol table. */ 2779 if (n.r_symndx > obj_conv_table_size (abfd)) 2780 { 2781 bfd_set_error (bfd_error_bad_value); 2782 _bfd_error_handler (_("%B: reloc against a non-existant symbol index: %ld"), 2783 abfd, n.r_symndx); 2784 return FALSE; 2785 } 2786 } 2787 } 2788 2789 #ifdef SWAP_OUT_RELOC_OFFSET 2790 n.r_offset = q->addend; 2791 #endif 2792 2793 #ifdef SELECT_RELOC 2794 /* Work out reloc type from what is required. */ 2795 SELECT_RELOC (n, q->howto); 2796 #else 2797 n.r_type = q->howto->type; 2798 #endif 2799 coff_swap_reloc_out (abfd, &n, &dst); 2800 2801 if (bfd_bwrite (& dst, (bfd_size_type) bfd_coff_relsz (abfd), 2802 abfd) != bfd_coff_relsz (abfd)) 2803 return FALSE; 2804 } 2805 2806 #ifdef TARG_AUX 2807 if (p != NULL) 2808 free (p); 2809 #endif 2810 } 2811 2812 return TRUE; 2813 } 2814 2815 /* Set flags and magic number of a coff file from architecture and machine 2816 type. Result is TRUE if we can represent the arch&type, FALSE if not. */ 2817 2818 static bfd_boolean 2819 coff_set_flags (bfd * abfd, 2820 unsigned int *magicp ATTRIBUTE_UNUSED, 2821 unsigned short *flagsp ATTRIBUTE_UNUSED) 2822 { 2823 switch (bfd_get_arch (abfd)) 2824 { 2825 #ifdef Z80MAGIC 2826 case bfd_arch_z80: 2827 *magicp = Z80MAGIC; 2828 switch (bfd_get_mach (abfd)) 2829 { 2830 case 0: 2831 case bfd_mach_z80strict: 2832 case bfd_mach_z80: 2833 case bfd_mach_z80full: 2834 case bfd_mach_r800: 2835 *flagsp = bfd_get_mach (abfd) << 12; 2836 break; 2837 default: 2838 return FALSE; 2839 } 2840 return TRUE; 2841 #endif 2842 2843 #ifdef Z8KMAGIC 2844 case bfd_arch_z8k: 2845 *magicp = Z8KMAGIC; 2846 2847 switch (bfd_get_mach (abfd)) 2848 { 2849 case bfd_mach_z8001: *flagsp = F_Z8001; break; 2850 case bfd_mach_z8002: *flagsp = F_Z8002; break; 2851 default: return FALSE; 2852 } 2853 return TRUE; 2854 #endif 2855 2856 #ifdef I960ROMAGIC 2857 case bfd_arch_i960: 2858 2859 { 2860 unsigned flags; 2861 2862 *magicp = I960ROMAGIC; 2863 2864 switch (bfd_get_mach (abfd)) 2865 { 2866 case bfd_mach_i960_core: flags = F_I960CORE; break; 2867 case bfd_mach_i960_kb_sb: flags = F_I960KB; break; 2868 case bfd_mach_i960_mc: flags = F_I960MC; break; 2869 case bfd_mach_i960_xa: flags = F_I960XA; break; 2870 case bfd_mach_i960_ca: flags = F_I960CA; break; 2871 case bfd_mach_i960_ka_sa: flags = F_I960KA; break; 2872 case bfd_mach_i960_jx: flags = F_I960JX; break; 2873 case bfd_mach_i960_hx: flags = F_I960HX; break; 2874 default: return FALSE; 2875 } 2876 *flagsp = flags; 2877 return TRUE; 2878 } 2879 break; 2880 #endif 2881 2882 #ifdef TIC30MAGIC 2883 case bfd_arch_tic30: 2884 *magicp = TIC30MAGIC; 2885 return TRUE; 2886 #endif 2887 2888 #ifdef TICOFF_DEFAULT_MAGIC 2889 case TICOFF_TARGET_ARCH: 2890 /* If there's no indication of which version we want, use the default. */ 2891 if (!abfd->xvec ) 2892 *magicp = TICOFF_DEFAULT_MAGIC; 2893 else 2894 { 2895 /* We may want to output in a different COFF version. */ 2896 switch (abfd->xvec->name[4]) 2897 { 2898 case '0': 2899 *magicp = TICOFF0MAGIC; 2900 break; 2901 case '1': 2902 *magicp = TICOFF1MAGIC; 2903 break; 2904 case '2': 2905 *magicp = TICOFF2MAGIC; 2906 break; 2907 default: 2908 return FALSE; 2909 } 2910 } 2911 TICOFF_TARGET_MACHINE_SET (flagsp, bfd_get_mach (abfd)); 2912 return TRUE; 2913 #endif 2914 2915 #ifdef TIC80_ARCH_MAGIC 2916 case bfd_arch_tic80: 2917 *magicp = TIC80_ARCH_MAGIC; 2918 return TRUE; 2919 #endif 2920 2921 #ifdef ARMMAGIC 2922 case bfd_arch_arm: 2923 #ifdef ARM_WINCE 2924 * magicp = ARMPEMAGIC; 2925 #else 2926 * magicp = ARMMAGIC; 2927 #endif 2928 * flagsp = 0; 2929 if (APCS_SET (abfd)) 2930 { 2931 if (APCS_26_FLAG (abfd)) 2932 * flagsp |= F_APCS26; 2933 2934 if (APCS_FLOAT_FLAG (abfd)) 2935 * flagsp |= F_APCS_FLOAT; 2936 2937 if (PIC_FLAG (abfd)) 2938 * flagsp |= F_PIC; 2939 } 2940 if (INTERWORK_SET (abfd) && INTERWORK_FLAG (abfd)) 2941 * flagsp |= F_INTERWORK; 2942 switch (bfd_get_mach (abfd)) 2943 { 2944 case bfd_mach_arm_2: * flagsp |= F_ARM_2; break; 2945 case bfd_mach_arm_2a: * flagsp |= F_ARM_2a; break; 2946 case bfd_mach_arm_3: * flagsp |= F_ARM_3; break; 2947 case bfd_mach_arm_3M: * flagsp |= F_ARM_3M; break; 2948 case bfd_mach_arm_4: * flagsp |= F_ARM_4; break; 2949 case bfd_mach_arm_4T: * flagsp |= F_ARM_4T; break; 2950 case bfd_mach_arm_5: * flagsp |= F_ARM_5; break; 2951 /* FIXME: we do not have F_ARM vaues greater than F_ARM_5. 2952 See also the comment in coff_set_arch_mach_hook(). */ 2953 case bfd_mach_arm_5T: * flagsp |= F_ARM_5; break; 2954 case bfd_mach_arm_5TE: * flagsp |= F_ARM_5; break; 2955 case bfd_mach_arm_XScale: * flagsp |= F_ARM_5; break; 2956 } 2957 return TRUE; 2958 #endif 2959 2960 #ifdef PPCMAGIC 2961 case bfd_arch_powerpc: 2962 *magicp = PPCMAGIC; 2963 return TRUE; 2964 #endif 2965 2966 #if defined(I386MAGIC) || defined(AMD64MAGIC) 2967 case bfd_arch_i386: 2968 #if defined(I386MAGIC) 2969 *magicp = I386MAGIC; 2970 #endif 2971 #if defined LYNXOS 2972 /* Just overwrite the usual value if we're doing Lynx. */ 2973 *magicp = LYNXCOFFMAGIC; 2974 #endif 2975 #if defined AMD64MAGIC 2976 *magicp = AMD64MAGIC; 2977 #endif 2978 return TRUE; 2979 #endif 2980 2981 #ifdef I860MAGIC 2982 case bfd_arch_i860: 2983 *magicp = I860MAGIC; 2984 return TRUE; 2985 #endif 2986 2987 #ifdef IA64MAGIC 2988 case bfd_arch_ia64: 2989 *magicp = IA64MAGIC; 2990 return TRUE; 2991 #endif 2992 2993 #ifdef MC68MAGIC 2994 case bfd_arch_m68k: 2995 #ifdef APOLLOM68KMAGIC 2996 *magicp = APOLLO_COFF_VERSION_NUMBER; 2997 #else 2998 /* NAMES_HAVE_UNDERSCORE may be defined by coff-u68k.c. */ 2999 #ifdef NAMES_HAVE_UNDERSCORE 3000 *magicp = MC68KBCSMAGIC; 3001 #else 3002 *magicp = MC68MAGIC; 3003 #endif 3004 #endif 3005 #ifdef LYNXOS 3006 /* Just overwrite the usual value if we're doing Lynx. */ 3007 *magicp = LYNXCOFFMAGIC; 3008 #endif 3009 return TRUE; 3010 #endif 3011 3012 #ifdef MC88MAGIC 3013 case bfd_arch_m88k: 3014 *magicp = MC88OMAGIC; 3015 return TRUE; 3016 #endif 3017 3018 #ifdef H8300MAGIC 3019 case bfd_arch_h8300: 3020 switch (bfd_get_mach (abfd)) 3021 { 3022 case bfd_mach_h8300: *magicp = H8300MAGIC; return TRUE; 3023 case bfd_mach_h8300h: *magicp = H8300HMAGIC; return TRUE; 3024 case bfd_mach_h8300s: *magicp = H8300SMAGIC; return TRUE; 3025 case bfd_mach_h8300hn: *magicp = H8300HNMAGIC; return TRUE; 3026 case bfd_mach_h8300sn: *magicp = H8300SNMAGIC; return TRUE; 3027 default: break; 3028 } 3029 break; 3030 #endif 3031 3032 #ifdef SH_ARCH_MAGIC_BIG 3033 case bfd_arch_sh: 3034 #ifdef COFF_IMAGE_WITH_PE 3035 *magicp = SH_ARCH_MAGIC_WINCE; 3036 #else 3037 if (bfd_big_endian (abfd)) 3038 *magicp = SH_ARCH_MAGIC_BIG; 3039 else 3040 *magicp = SH_ARCH_MAGIC_LITTLE; 3041 #endif 3042 return TRUE; 3043 #endif 3044 3045 #ifdef MIPS_ARCH_MAGIC_WINCE 3046 case bfd_arch_mips: 3047 *magicp = MIPS_ARCH_MAGIC_WINCE; 3048 return TRUE; 3049 #endif 3050 3051 #ifdef SPARCMAGIC 3052 case bfd_arch_sparc: 3053 *magicp = SPARCMAGIC; 3054 #ifdef LYNXOS 3055 /* Just overwrite the usual value if we're doing Lynx. */ 3056 *magicp = LYNXCOFFMAGIC; 3057 #endif 3058 return TRUE; 3059 #endif 3060 3061 #ifdef H8500MAGIC 3062 case bfd_arch_h8500: 3063 *magicp = H8500MAGIC; 3064 return TRUE; 3065 break; 3066 #endif 3067 3068 #ifdef WE32KMAGIC 3069 case bfd_arch_we32k: 3070 *magicp = WE32KMAGIC; 3071 return TRUE; 3072 #endif 3073 3074 #ifdef RS6000COFF_C 3075 case bfd_arch_rs6000: 3076 #ifndef PPCMAGIC 3077 case bfd_arch_powerpc: 3078 #endif 3079 BFD_ASSERT (bfd_get_flavour (abfd) == bfd_target_xcoff_flavour); 3080 *magicp = bfd_xcoff_magic_number (abfd); 3081 return TRUE; 3082 #endif 3083 3084 #ifdef MCOREMAGIC 3085 case bfd_arch_mcore: 3086 * magicp = MCOREMAGIC; 3087 return TRUE; 3088 #endif 3089 3090 #ifdef W65MAGIC 3091 case bfd_arch_w65: 3092 *magicp = W65MAGIC; 3093 return TRUE; 3094 #endif 3095 3096 default: /* Unknown architecture. */ 3097 /* Fall through to "return FALSE" below, to avoid 3098 "statement never reached" errors on the one below. */ 3099 break; 3100 } 3101 3102 return FALSE; 3103 } 3104 3105 static bfd_boolean 3106 coff_set_arch_mach (bfd * abfd, 3107 enum bfd_architecture arch, 3108 unsigned long machine) 3109 { 3110 unsigned dummy1; 3111 unsigned short dummy2; 3112 3113 if (! bfd_default_set_arch_mach (abfd, arch, machine)) 3114 return FALSE; 3115 3116 if (arch != bfd_arch_unknown 3117 && ! coff_set_flags (abfd, &dummy1, &dummy2)) 3118 return FALSE; /* We can't represent this type. */ 3119 3120 return TRUE; /* We're easy... */ 3121 } 3122 3123 #ifdef COFF_IMAGE_WITH_PE 3124 3125 /* This is used to sort sections by VMA, as required by PE image 3126 files. */ 3127 3128 static int 3129 sort_by_secaddr (const void * arg1, const void * arg2) 3130 { 3131 const asection *a = *(const asection **) arg1; 3132 const asection *b = *(const asection **) arg2; 3133 3134 if (a->vma < b->vma) 3135 return -1; 3136 else if (a->vma > b->vma) 3137 return 1; 3138 3139 return 0; 3140 } 3141 3142 #endif /* COFF_IMAGE_WITH_PE */ 3143 3144 /* Calculate the file position for each section. */ 3145 3146 #ifndef I960 3147 #define ALIGN_SECTIONS_IN_FILE 3148 #endif 3149 #if defined(TIC80COFF) || defined(TICOFF) 3150 #undef ALIGN_SECTIONS_IN_FILE 3151 #endif 3152 3153 static bfd_boolean 3154 coff_compute_section_file_positions (bfd * abfd) 3155 { 3156 asection *current; 3157 file_ptr sofar = bfd_coff_filhsz (abfd); 3158 bfd_boolean align_adjust; 3159 unsigned int target_index; 3160 #ifdef ALIGN_SECTIONS_IN_FILE 3161 asection *previous = NULL; 3162 file_ptr old_sofar; 3163 #endif 3164 3165 #ifdef COFF_IMAGE_WITH_PE 3166 int page_size; 3167 3168 if (coff_data (abfd)->link_info 3169 || (pe_data (abfd) && pe_data (abfd)->pe_opthdr.FileAlignment)) 3170 { 3171 page_size = pe_data (abfd)->pe_opthdr.FileAlignment; 3172 3173 /* If no file alignment has been set, default to one. 3174 This repairs 'ld -r' for arm-wince-pe target. */ 3175 if (page_size == 0) 3176 page_size = 1; 3177 3178 /* PR 17512: file: 0ac816d3. */ 3179 if (page_size < 0) 3180 { 3181 bfd_set_error (bfd_error_file_too_big); 3182 (*_bfd_error_handler) 3183 (_("%B: page size is too large (0x%x)"), abfd, page_size); 3184 return FALSE; 3185 } 3186 } 3187 else 3188 page_size = PE_DEF_FILE_ALIGNMENT; 3189 #else 3190 #ifdef COFF_PAGE_SIZE 3191 int page_size = COFF_PAGE_SIZE; 3192 #endif 3193 #endif 3194 3195 #ifdef RS6000COFF_C 3196 /* On XCOFF, if we have symbols, set up the .debug section. */ 3197 if (bfd_get_symcount (abfd) > 0) 3198 { 3199 bfd_size_type sz; 3200 bfd_size_type i, symcount; 3201 asymbol **symp; 3202 3203 sz = 0; 3204 symcount = bfd_get_symcount (abfd); 3205 for (symp = abfd->outsymbols, i = 0; i < symcount; symp++, i++) 3206 { 3207 coff_symbol_type *cf; 3208 3209 cf = coff_symbol_from (*symp); 3210 if (cf != NULL 3211 && cf->native != NULL 3212 && cf->native->is_sym 3213 && SYMNAME_IN_DEBUG (&cf->native->u.syment)) 3214 { 3215 size_t len; 3216 3217 len = strlen (bfd_asymbol_name (*symp)); 3218 if (len > SYMNMLEN || bfd_coff_force_symnames_in_strings (abfd)) 3219 sz += len + 1 + bfd_coff_debug_string_prefix_length (abfd); 3220 } 3221 } 3222 if (sz > 0) 3223 { 3224 asection *dsec; 3225 3226 dsec = bfd_make_section_old_way (abfd, DOT_DEBUG); 3227 if (dsec == NULL) 3228 abort (); 3229 dsec->size = sz; 3230 dsec->flags |= SEC_HAS_CONTENTS; 3231 } 3232 } 3233 #endif 3234 3235 if (bfd_get_start_address (abfd)) 3236 /* A start address may have been added to the original file. In this 3237 case it will need an optional header to record it. */ 3238 abfd->flags |= EXEC_P; 3239 3240 if (abfd->flags & EXEC_P) 3241 sofar += bfd_coff_aoutsz (abfd); 3242 #ifdef RS6000COFF_C 3243 else if (xcoff_data (abfd)->full_aouthdr) 3244 sofar += bfd_coff_aoutsz (abfd); 3245 else 3246 sofar += SMALL_AOUTSZ; 3247 #endif 3248 3249 sofar += abfd->section_count * bfd_coff_scnhsz (abfd); 3250 3251 #ifdef RS6000COFF_C 3252 /* XCOFF handles overflows in the reloc and line number count fields 3253 by allocating a new section header to hold the correct counts. */ 3254 for (current = abfd->sections; current != NULL; current = current->next) 3255 if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff) 3256 sofar += bfd_coff_scnhsz (abfd); 3257 #endif 3258 3259 #ifdef COFF_IMAGE_WITH_PE 3260 { 3261 /* PE requires the sections to be in memory order when listed in 3262 the section headers. It also does not like empty loadable 3263 sections. The sections apparently do not have to be in the 3264 right order in the image file itself, but we do need to get the 3265 target_index values right. */ 3266 3267 unsigned int count; 3268 asection **section_list; 3269 unsigned int i; 3270 bfd_size_type amt; 3271 3272 #ifdef COFF_PAGE_SIZE 3273 /* Clear D_PAGED if section alignment is smaller than 3274 COFF_PAGE_SIZE. */ 3275 if (pe_data (abfd)->pe_opthdr.SectionAlignment < COFF_PAGE_SIZE) 3276 abfd->flags &= ~D_PAGED; 3277 #endif 3278 3279 count = 0; 3280 for (current = abfd->sections; current != NULL; current = current->next) 3281 ++count; 3282 3283 /* We allocate an extra cell to simplify the final loop. */ 3284 amt = sizeof (struct asection *) * (count + 1); 3285 section_list = (asection **) bfd_malloc (amt); 3286 if (section_list == NULL) 3287 return FALSE; 3288 3289 i = 0; 3290 for (current = abfd->sections; current != NULL; current = current->next) 3291 { 3292 section_list[i] = current; 3293 ++i; 3294 } 3295 section_list[i] = NULL; 3296 3297 qsort (section_list, count, sizeof (asection *), sort_by_secaddr); 3298 3299 /* Rethread the linked list into sorted order; at the same time, 3300 assign target_index values. */ 3301 target_index = 1; 3302 abfd->sections = NULL; 3303 abfd->section_last = NULL; 3304 for (i = 0; i < count; i++) 3305 { 3306 current = section_list[i]; 3307 bfd_section_list_append (abfd, current); 3308 3309 /* Later, if the section has zero size, we'll be throwing it 3310 away, so we don't want to number it now. Note that having 3311 a zero size and having real contents are different 3312 concepts: .bss has no contents, but (usually) non-zero 3313 size. */ 3314 if (current->size == 0) 3315 { 3316 /* Discard. However, it still might have (valid) symbols 3317 in it, so arbitrarily set it to section 1 (indexing is 3318 1-based here; usually .text). __end__ and other 3319 contents of .endsection really have this happen. 3320 FIXME: This seems somewhat dubious. */ 3321 current->target_index = 1; 3322 } 3323 else 3324 current->target_index = target_index++; 3325 } 3326 3327 free (section_list); 3328 } 3329 #else /* ! COFF_IMAGE_WITH_PE */ 3330 { 3331 /* Set the target_index field. */ 3332 target_index = 1; 3333 for (current = abfd->sections; current != NULL; current = current->next) 3334 current->target_index = target_index++; 3335 } 3336 #endif /* ! COFF_IMAGE_WITH_PE */ 3337 3338 if (target_index >= bfd_coff_max_nscns (abfd)) 3339 { 3340 bfd_set_error (bfd_error_file_too_big); 3341 (*_bfd_error_handler) 3342 (_("%B: too many sections (%d)"), abfd, target_index); 3343 return FALSE; 3344 } 3345 3346 align_adjust = FALSE; 3347 for (current = abfd->sections; 3348 current != NULL; 3349 current = current->next) 3350 { 3351 #ifdef COFF_IMAGE_WITH_PE 3352 /* With PE we have to pad each section to be a multiple of its 3353 page size too, and remember both sizes. */ 3354 if (coff_section_data (abfd, current) == NULL) 3355 { 3356 bfd_size_type amt = sizeof (struct coff_section_tdata); 3357 3358 current->used_by_bfd = bfd_zalloc (abfd, amt); 3359 if (current->used_by_bfd == NULL) 3360 return FALSE; 3361 } 3362 if (pei_section_data (abfd, current) == NULL) 3363 { 3364 bfd_size_type amt = sizeof (struct pei_section_tdata); 3365 3366 coff_section_data (abfd, current)->tdata = bfd_zalloc (abfd, amt); 3367 if (coff_section_data (abfd, current)->tdata == NULL) 3368 return FALSE; 3369 } 3370 if (pei_section_data (abfd, current)->virt_size == 0) 3371 pei_section_data (abfd, current)->virt_size = current->size; 3372 #endif 3373 3374 /* Only deal with sections which have contents. */ 3375 if (!(current->flags & SEC_HAS_CONTENTS)) 3376 continue; 3377 3378 current->rawsize = current->size; 3379 3380 #ifdef COFF_IMAGE_WITH_PE 3381 /* Make sure we skip empty sections in a PE image. */ 3382 if (current->size == 0) 3383 continue; 3384 #endif 3385 3386 /* Align the sections in the file to the same boundary on 3387 which they are aligned in virtual memory. I960 doesn't 3388 do this (FIXME) so we can stay in sync with Intel. 960 3389 doesn't yet page from files... */ 3390 #ifdef ALIGN_SECTIONS_IN_FILE 3391 if ((abfd->flags & EXEC_P) != 0) 3392 { 3393 /* Make sure this section is aligned on the right boundary - by 3394 padding the previous section up if necessary. */ 3395 old_sofar = sofar; 3396 3397 sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); 3398 3399 #ifdef RS6000COFF_C 3400 /* Make sure the file offset and the vma of .text/.data are at the 3401 same page offset, so that the file can be mmap'ed without being 3402 relocated. Failing that, AIX is able to load and execute the 3403 program, but it will be silently relocated (possible as 3404 executables are PIE). But the relocation is slightly costly and 3405 complexify the use of addr2line or gdb. So better to avoid it, 3406 like does the native linker. Usually gnu ld makes sure that 3407 the vma of .text is the file offset so this issue shouldn't 3408 appear unless you are stripping such an executable. 3409 3410 AIX loader checks the text section alignment of (vma - filepos), 3411 and the native linker doesn't try to align the text sections. 3412 For example: 3413 3414 0 .text 000054cc 10000128 10000128 00000128 2**5 3415 CONTENTS, ALLOC, LOAD, CODE 3416 */ 3417 3418 if (!strcmp (current->name, _TEXT) 3419 || !strcmp (current->name, _DATA)) 3420 { 3421 bfd_vma align = 4096; 3422 bfd_vma sofar_off = sofar % align; 3423 bfd_vma vma_off = current->vma % align; 3424 3425 if (vma_off > sofar_off) 3426 sofar += vma_off - sofar_off; 3427 else if (vma_off < sofar_off) 3428 sofar += align + vma_off - sofar_off; 3429 } 3430 #endif 3431 if (previous != NULL) 3432 previous->size += sofar - old_sofar; 3433 } 3434 3435 #endif 3436 3437 /* In demand paged files the low order bits of the file offset 3438 must match the low order bits of the virtual address. */ 3439 #ifdef COFF_PAGE_SIZE 3440 if ((abfd->flags & D_PAGED) != 0 3441 && (current->flags & SEC_ALLOC) != 0) 3442 sofar += (current->vma - (bfd_vma) sofar) % page_size; 3443 #endif 3444 current->filepos = sofar; 3445 3446 #ifdef COFF_IMAGE_WITH_PE 3447 /* Set the padded size. */ 3448 current->size = (current->size + page_size - 1) & -page_size; 3449 #endif 3450 3451 sofar += current->size; 3452 3453 #ifdef ALIGN_SECTIONS_IN_FILE 3454 /* Make sure that this section is of the right size too. */ 3455 if ((abfd->flags & EXEC_P) == 0) 3456 { 3457 bfd_size_type old_size; 3458 3459 old_size = current->size; 3460 current->size = BFD_ALIGN (current->size, 3461 1 << current->alignment_power); 3462 align_adjust = current->size != old_size; 3463 sofar += current->size - old_size; 3464 } 3465 else 3466 { 3467 old_sofar = sofar; 3468 sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); 3469 align_adjust = sofar != old_sofar; 3470 current->size += sofar - old_sofar; 3471 } 3472 #endif 3473 3474 #ifdef COFF_IMAGE_WITH_PE 3475 /* For PE we need to make sure we pad out to the aligned 3476 size, in case the caller only writes out data to the 3477 unaligned size. */ 3478 if (pei_section_data (abfd, current)->virt_size < current->size) 3479 align_adjust = TRUE; 3480 #endif 3481 3482 #ifdef _LIB 3483 /* Force .lib sections to start at zero. The vma is then 3484 incremented in coff_set_section_contents. This is right for 3485 SVR3.2. */ 3486 if (strcmp (current->name, _LIB) == 0) 3487 (void) bfd_set_section_vma (abfd, current, 0); 3488 #endif 3489 3490 #ifdef ALIGN_SECTIONS_IN_FILE 3491 previous = current; 3492 #endif 3493 } 3494 3495 /* It is now safe to write to the output file. If we needed an 3496 alignment adjustment for the last section, then make sure that 3497 there is a byte at offset sofar. If there are no symbols and no 3498 relocs, then nothing follows the last section. If we don't force 3499 the last byte out, then the file may appear to be truncated. */ 3500 if (align_adjust) 3501 { 3502 bfd_byte b; 3503 3504 b = 0; 3505 if (bfd_seek (abfd, sofar - 1, SEEK_SET) != 0 3506 || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1) 3507 return FALSE; 3508 } 3509 3510 /* Make sure the relocations are aligned. We don't need to make 3511 sure that this byte exists, because it will only matter if there 3512 really are relocs. */ 3513 sofar = BFD_ALIGN (sofar, 1 << COFF_DEFAULT_SECTION_ALIGNMENT_POWER); 3514 3515 obj_relocbase (abfd) = sofar; 3516 abfd->output_has_begun = TRUE; 3517 3518 return TRUE; 3519 } 3520 3521 #ifdef COFF_IMAGE_WITH_PE 3522 3523 static unsigned int pelength; 3524 static unsigned int peheader; 3525 3526 static bfd_boolean 3527 coff_read_word (bfd *abfd, unsigned int *value) 3528 { 3529 unsigned char b[2]; 3530 int status; 3531 3532 status = bfd_bread (b, (bfd_size_type) 2, abfd); 3533 if (status < 1) 3534 { 3535 *value = 0; 3536 return FALSE; 3537 } 3538 3539 if (status == 1) 3540 *value = (unsigned int) b[0]; 3541 else 3542 *value = (unsigned int) (b[0] + (b[1] << 8)); 3543 3544 pelength += (unsigned int) status; 3545 3546 return TRUE; 3547 } 3548 3549 static unsigned int 3550 coff_compute_checksum (bfd *abfd) 3551 { 3552 bfd_boolean more_data; 3553 file_ptr filepos; 3554 unsigned int value; 3555 unsigned int total; 3556 3557 total = 0; 3558 pelength = 0; 3559 filepos = (file_ptr) 0; 3560 3561 do 3562 { 3563 if (bfd_seek (abfd, filepos, SEEK_SET) != 0) 3564 return 0; 3565 3566 more_data = coff_read_word (abfd, &value); 3567 total += value; 3568 total = 0xffff & (total + (total >> 0x10)); 3569 filepos += 2; 3570 } 3571 while (more_data); 3572 3573 return (0xffff & (total + (total >> 0x10))); 3574 } 3575 3576 static bfd_boolean 3577 coff_apply_checksum (bfd *abfd) 3578 { 3579 unsigned int computed; 3580 unsigned int checksum = 0; 3581 3582 if (bfd_seek (abfd, 0x3c, SEEK_SET) != 0) 3583 return FALSE; 3584 3585 if (!coff_read_word (abfd, &peheader)) 3586 return FALSE; 3587 3588 if (bfd_seek (abfd, peheader + 0x58, SEEK_SET) != 0) 3589 return FALSE; 3590 3591 checksum = 0; 3592 bfd_bwrite (&checksum, (bfd_size_type) 4, abfd); 3593 3594 if (bfd_seek (abfd, peheader, SEEK_SET) != 0) 3595 return FALSE; 3596 3597 computed = coff_compute_checksum (abfd); 3598 3599 checksum = computed + pelength; 3600 3601 if (bfd_seek (abfd, peheader + 0x58, SEEK_SET) != 0) 3602 return FALSE; 3603 3604 bfd_bwrite (&checksum, (bfd_size_type) 4, abfd); 3605 3606 return TRUE; 3607 } 3608 3609 #endif /* COFF_IMAGE_WITH_PE */ 3610 3611 static bfd_boolean 3612 coff_write_object_contents (bfd * abfd) 3613 { 3614 asection *current; 3615 bfd_boolean hasrelocs = FALSE; 3616 bfd_boolean haslinno = FALSE; 3617 #ifdef COFF_IMAGE_WITH_PE 3618 bfd_boolean hasdebug = FALSE; 3619 #endif 3620 file_ptr scn_base; 3621 file_ptr reloc_base; 3622 file_ptr lineno_base; 3623 file_ptr sym_base; 3624 unsigned long reloc_size = 0, reloc_count = 0; 3625 unsigned long lnno_size = 0; 3626 bfd_boolean long_section_names; 3627 asection *text_sec = NULL; 3628 asection *data_sec = NULL; 3629 asection *bss_sec = NULL; 3630 struct internal_filehdr internal_f; 3631 struct internal_aouthdr internal_a; 3632 #ifdef COFF_LONG_SECTION_NAMES 3633 size_t string_size = STRING_SIZE_SIZE; 3634 #endif 3635 3636 bfd_set_error (bfd_error_system_call); 3637 3638 /* Make a pass through the symbol table to count line number entries and 3639 put them into the correct asections. */ 3640 lnno_size = coff_count_linenumbers (abfd) * bfd_coff_linesz (abfd); 3641 3642 if (! abfd->output_has_begun) 3643 { 3644 if (! coff_compute_section_file_positions (abfd)) 3645 return FALSE; 3646 } 3647 3648 reloc_base = obj_relocbase (abfd); 3649 3650 /* Work out the size of the reloc and linno areas. */ 3651 3652 for (current = abfd->sections; current != NULL; current = 3653 current->next) 3654 { 3655 #ifdef COFF_WITH_PE 3656 /* We store the actual reloc count in the first reloc's addr. */ 3657 if (obj_pe (abfd) && current->reloc_count >= 0xffff) 3658 reloc_count ++; 3659 #endif 3660 reloc_count += current->reloc_count; 3661 } 3662 3663 reloc_size = reloc_count * bfd_coff_relsz (abfd); 3664 3665 lineno_base = reloc_base + reloc_size; 3666 sym_base = lineno_base + lnno_size; 3667 3668 /* Indicate in each section->line_filepos its actual file address. */ 3669 for (current = abfd->sections; current != NULL; current = 3670 current->next) 3671 { 3672 if (current->lineno_count) 3673 { 3674 current->line_filepos = lineno_base; 3675 current->moving_line_filepos = lineno_base; 3676 lineno_base += current->lineno_count * bfd_coff_linesz (abfd); 3677 } 3678 else 3679 current->line_filepos = 0; 3680 3681 if (current->reloc_count) 3682 { 3683 current->rel_filepos = reloc_base; 3684 reloc_base += current->reloc_count * bfd_coff_relsz (abfd); 3685 #ifdef COFF_WITH_PE 3686 /* Extra reloc to hold real count. */ 3687 if (obj_pe (abfd) && current->reloc_count >= 0xffff) 3688 reloc_base += bfd_coff_relsz (abfd); 3689 #endif 3690 } 3691 else 3692 current->rel_filepos = 0; 3693 } 3694 3695 /* Write section headers to the file. */ 3696 internal_f.f_nscns = 0; 3697 3698 if ((abfd->flags & EXEC_P) != 0) 3699 scn_base = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd); 3700 else 3701 { 3702 scn_base = bfd_coff_filhsz (abfd); 3703 #ifdef RS6000COFF_C 3704 #ifndef XCOFF64 3705 if (xcoff_data (abfd)->full_aouthdr) 3706 scn_base += bfd_coff_aoutsz (abfd); 3707 else 3708 scn_base += SMALL_AOUTSZ; 3709 #endif 3710 #endif 3711 } 3712 3713 if (bfd_seek (abfd, scn_base, SEEK_SET) != 0) 3714 return FALSE; 3715 3716 long_section_names = FALSE; 3717 for (current = abfd->sections; 3718 current != NULL; 3719 current = current->next) 3720 { 3721 struct internal_scnhdr section; 3722 #ifdef COFF_IMAGE_WITH_PE 3723 bfd_boolean is_reloc_section = FALSE; 3724 3725 if (strcmp (current->name, DOT_RELOC) == 0) 3726 { 3727 is_reloc_section = TRUE; 3728 hasrelocs = TRUE; 3729 pe_data (abfd)->has_reloc_section = 1; 3730 } 3731 #endif 3732 3733 internal_f.f_nscns++; 3734 3735 strncpy (section.s_name, current->name, SCNNMLEN); 3736 3737 #ifdef COFF_LONG_SECTION_NAMES 3738 /* Handle long section names as in PE. This must be compatible 3739 with the code in coff_write_symbols and _bfd_coff_final_link. */ 3740 if (bfd_coff_long_section_names (abfd)) 3741 { 3742 size_t len; 3743 3744 len = strlen (current->name); 3745 if (len > SCNNMLEN) 3746 { 3747 /* The s_name field is defined to be NUL-padded but need not be 3748 NUL-terminated. We use a temporary buffer so that we can still 3749 sprintf all eight chars without splatting a terminating NUL 3750 over the first byte of the following member (s_paddr). */ 3751 char s_name_buf[SCNNMLEN + 1]; 3752 3753 /* An inherent limitation of the /nnnnnnn notation used to indicate 3754 the offset of the long name in the string table is that we 3755 cannot address entries beyone the ten million byte boundary. */ 3756 if (string_size >= 10000000) 3757 { 3758 bfd_set_error (bfd_error_file_too_big); 3759 (*_bfd_error_handler) 3760 (_("%B: section %s: string table overflow at offset %ld"), 3761 abfd, current->name, string_size); 3762 return FALSE; 3763 } 3764 3765 /* snprintf not strictly necessary now we've verified the value 3766 has less than eight ASCII digits, but never mind. */ 3767 snprintf (s_name_buf, SCNNMLEN + 1, "/%lu", (unsigned long) string_size); 3768 /* Then strncpy takes care of any padding for us. */ 3769 strncpy (section.s_name, s_name_buf, SCNNMLEN); 3770 string_size += len + 1; 3771 long_section_names = TRUE; 3772 } 3773 } 3774 #endif 3775 3776 #ifdef _LIB 3777 /* Always set s_vaddr of .lib to 0. This is right for SVR3.2 3778 Ian Taylor <ian@cygnus.com>. */ 3779 if (strcmp (current->name, _LIB) == 0) 3780 section.s_vaddr = 0; 3781 else 3782 #endif 3783 section.s_vaddr = current->vma; 3784 section.s_paddr = current->lma; 3785 section.s_size = current->size; 3786 #ifdef coff_get_section_load_page 3787 section.s_page = coff_get_section_load_page (current); 3788 #else 3789 section.s_page = 0; 3790 #endif 3791 3792 #ifdef COFF_WITH_PE 3793 section.s_paddr = 0; 3794 #endif 3795 #ifdef COFF_IMAGE_WITH_PE 3796 /* Reminder: s_paddr holds the virtual size of the section. */ 3797 if (coff_section_data (abfd, current) != NULL 3798 && pei_section_data (abfd, current) != NULL) 3799 section.s_paddr = pei_section_data (abfd, current)->virt_size; 3800 else 3801 section.s_paddr = 0; 3802 #endif 3803 3804 /* If this section has no size or is unloadable then the scnptr 3805 will be 0 too. */ 3806 if (current->size == 0 3807 || (current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) 3808 section.s_scnptr = 0; 3809 else 3810 section.s_scnptr = current->filepos; 3811 3812 section.s_relptr = current->rel_filepos; 3813 section.s_lnnoptr = current->line_filepos; 3814 section.s_nreloc = current->reloc_count; 3815 section.s_nlnno = current->lineno_count; 3816 #ifndef COFF_IMAGE_WITH_PE 3817 /* In PEI, relocs come in the .reloc section. */ 3818 if (current->reloc_count != 0) 3819 hasrelocs = TRUE; 3820 #endif 3821 if (current->lineno_count != 0) 3822 haslinno = TRUE; 3823 #ifdef COFF_IMAGE_WITH_PE 3824 if ((current->flags & SEC_DEBUGGING) != 0 3825 && ! is_reloc_section) 3826 hasdebug = TRUE; 3827 #endif 3828 3829 #ifdef RS6000COFF_C 3830 #ifndef XCOFF64 3831 /* Indicate the use of an XCOFF overflow section header. */ 3832 if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff) 3833 { 3834 section.s_nreloc = 0xffff; 3835 section.s_nlnno = 0xffff; 3836 } 3837 #endif 3838 #endif 3839 3840 section.s_flags = sec_to_styp_flags (current->name, current->flags); 3841 3842 if (!strcmp (current->name, _TEXT)) 3843 text_sec = current; 3844 else if (!strcmp (current->name, _DATA)) 3845 data_sec = current; 3846 else if (!strcmp (current->name, _BSS)) 3847 bss_sec = current; 3848 3849 #ifdef I960 3850 section.s_align = (current->alignment_power 3851 ? 1 << current->alignment_power 3852 : 0); 3853 #endif 3854 #ifdef TIC80COFF 3855 /* TI COFF puts the alignment power in bits 8-11 of the flags. */ 3856 section.s_flags |= (current->alignment_power & 0xF) << 8; 3857 #endif 3858 #ifdef COFF_ENCODE_ALIGNMENT 3859 COFF_ENCODE_ALIGNMENT(section, current->alignment_power); 3860 #endif 3861 3862 #ifdef COFF_IMAGE_WITH_PE 3863 /* Suppress output of the sections if they are null. ld 3864 includes the bss and data sections even if there is no size 3865 assigned to them. NT loader doesn't like it if these section 3866 headers are included if the sections themselves are not 3867 needed. See also coff_compute_section_file_positions. */ 3868 if (section.s_size == 0) 3869 internal_f.f_nscns--; 3870 else 3871 #endif 3872 { 3873 SCNHDR buff; 3874 bfd_size_type amt = bfd_coff_scnhsz (abfd); 3875 3876 if (coff_swap_scnhdr_out (abfd, §ion, &buff) == 0 3877 || bfd_bwrite (& buff, amt, abfd) != amt) 3878 return FALSE; 3879 } 3880 3881 #ifdef COFF_WITH_PE 3882 /* PE stores COMDAT section information in the symbol table. If 3883 this section is supposed to have some COMDAT info, track down 3884 the symbol in the symbol table and modify it. */ 3885 if ((current->flags & SEC_LINK_ONCE) != 0) 3886 { 3887 unsigned int i, count; 3888 asymbol **psym; 3889 coff_symbol_type *csym = NULL; 3890 asymbol **psymsec; 3891 3892 psymsec = NULL; 3893 count = bfd_get_symcount (abfd); 3894 for (i = 0, psym = abfd->outsymbols; i < count; i++, psym++) 3895 { 3896 if ((*psym)->section != current) 3897 continue; 3898 3899 /* Remember the location of the first symbol in this 3900 section. */ 3901 if (psymsec == NULL) 3902 psymsec = psym; 3903 3904 /* See if this is the section symbol. */ 3905 if (strcmp ((*psym)->name, current->name) == 0) 3906 { 3907 csym = coff_symbol_from (*psym); 3908 if (csym == NULL 3909 || csym->native == NULL 3910 || ! csym->native->is_sym 3911 || csym->native->u.syment.n_numaux < 1 3912 || csym->native->u.syment.n_sclass != C_STAT 3913 || csym->native->u.syment.n_type != T_NULL) 3914 continue; 3915 3916 /* Here *PSYM is the section symbol for CURRENT. */ 3917 3918 break; 3919 } 3920 } 3921 3922 /* Did we find it? 3923 Note that we might not if we're converting the file from 3924 some other object file format. */ 3925 if (i < count) 3926 { 3927 combined_entry_type *aux; 3928 3929 /* We don't touch the x_checksum field. The 3930 x_associated field is not currently supported. */ 3931 3932 aux = csym->native + 1; 3933 BFD_ASSERT (! aux->is_sym); 3934 switch (current->flags & SEC_LINK_DUPLICATES) 3935 { 3936 case SEC_LINK_DUPLICATES_DISCARD: 3937 aux->u.auxent.x_scn.x_comdat = IMAGE_COMDAT_SELECT_ANY; 3938 break; 3939 3940 case SEC_LINK_DUPLICATES_ONE_ONLY: 3941 aux->u.auxent.x_scn.x_comdat = 3942 IMAGE_COMDAT_SELECT_NODUPLICATES; 3943 break; 3944 3945 case SEC_LINK_DUPLICATES_SAME_SIZE: 3946 aux->u.auxent.x_scn.x_comdat = 3947 IMAGE_COMDAT_SELECT_SAME_SIZE; 3948 break; 3949 3950 case SEC_LINK_DUPLICATES_SAME_CONTENTS: 3951 aux->u.auxent.x_scn.x_comdat = 3952 IMAGE_COMDAT_SELECT_EXACT_MATCH; 3953 break; 3954 } 3955 3956 /* The COMDAT symbol must be the first symbol from this 3957 section in the symbol table. In order to make this 3958 work, we move the COMDAT symbol before the first 3959 symbol we found in the search above. It's OK to 3960 rearrange the symbol table at this point, because 3961 coff_renumber_symbols is going to rearrange it 3962 further and fix up all the aux entries. */ 3963 if (psym != psymsec) 3964 { 3965 asymbol *hold; 3966 asymbol **pcopy; 3967 3968 hold = *psym; 3969 for (pcopy = psym; pcopy > psymsec; pcopy--) 3970 pcopy[0] = pcopy[-1]; 3971 *psymsec = hold; 3972 } 3973 } 3974 } 3975 #endif /* COFF_WITH_PE */ 3976 } 3977 3978 #ifdef RS6000COFF_C 3979 #ifndef XCOFF64 3980 /* XCOFF handles overflows in the reloc and line number count fields 3981 by creating a new section header to hold the correct values. */ 3982 for (current = abfd->sections; current != NULL; current = current->next) 3983 { 3984 if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff) 3985 { 3986 struct internal_scnhdr scnhdr; 3987 SCNHDR buff; 3988 bfd_size_type amt; 3989 3990 internal_f.f_nscns++; 3991 memcpy (scnhdr.s_name, ".ovrflo", 8); 3992 scnhdr.s_paddr = current->reloc_count; 3993 scnhdr.s_vaddr = current->lineno_count; 3994 scnhdr.s_size = 0; 3995 scnhdr.s_scnptr = 0; 3996 scnhdr.s_relptr = current->rel_filepos; 3997 scnhdr.s_lnnoptr = current->line_filepos; 3998 scnhdr.s_nreloc = current->target_index; 3999 scnhdr.s_nlnno = current->target_index; 4000 scnhdr.s_flags = STYP_OVRFLO; 4001 amt = bfd_coff_scnhsz (abfd); 4002 if (coff_swap_scnhdr_out (abfd, &scnhdr, &buff) == 0 4003 || bfd_bwrite (& buff, amt, abfd) != amt) 4004 return FALSE; 4005 } 4006 } 4007 #endif 4008 #endif 4009 4010 /* OK, now set up the filehdr... */ 4011 4012 /* Don't include the internal abs section in the section count */ 4013 4014 /* We will NOT put a fucking timestamp in the header here. Every time you 4015 put it back, I will come in and take it out again. I'm sorry. This 4016 field does not belong here. We fill it with a 0 so it compares the 4017 same but is not a reasonable time. -- gnu@cygnus.com */ 4018 internal_f.f_timdat = 0; 4019 internal_f.f_flags = 0; 4020 4021 if (abfd->flags & EXEC_P) 4022 internal_f.f_opthdr = bfd_coff_aoutsz (abfd); 4023 else 4024 { 4025 internal_f.f_opthdr = 0; 4026 #ifdef RS6000COFF_C 4027 #ifndef XCOFF64 4028 if (xcoff_data (abfd)->full_aouthdr) 4029 internal_f.f_opthdr = bfd_coff_aoutsz (abfd); 4030 else 4031 internal_f.f_opthdr = SMALL_AOUTSZ; 4032 #endif 4033 #endif 4034 } 4035 4036 if (!hasrelocs) 4037 internal_f.f_flags |= F_RELFLG; 4038 if (!haslinno) 4039 internal_f.f_flags |= F_LNNO; 4040 if (abfd->flags & EXEC_P) 4041 internal_f.f_flags |= F_EXEC; 4042 #ifdef COFF_IMAGE_WITH_PE 4043 if (! hasdebug) 4044 internal_f.f_flags |= IMAGE_FILE_DEBUG_STRIPPED; 4045 if (pe_data (abfd)->real_flags & IMAGE_FILE_LARGE_ADDRESS_AWARE) 4046 internal_f.f_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE; 4047 #endif 4048 4049 #ifndef COFF_WITH_pex64 4050 #ifdef COFF_WITH_PE 4051 internal_f.f_flags |= IMAGE_FILE_32BIT_MACHINE; 4052 #else 4053 if (bfd_little_endian (abfd)) 4054 internal_f.f_flags |= F_AR32WR; 4055 else 4056 internal_f.f_flags |= F_AR32W; 4057 #endif 4058 #endif 4059 4060 #ifdef TI_TARGET_ID 4061 /* Target id is used in TI COFF v1 and later; COFF0 won't use this field, 4062 but it doesn't hurt to set it internally. */ 4063 internal_f.f_target_id = TI_TARGET_ID; 4064 #endif 4065 #ifdef TIC80_TARGET_ID 4066 internal_f.f_target_id = TIC80_TARGET_ID; 4067 #endif 4068 4069 /* FIXME, should do something about the other byte orders and 4070 architectures. */ 4071 4072 #ifdef RS6000COFF_C 4073 if ((abfd->flags & DYNAMIC) != 0) 4074 internal_f.f_flags |= F_SHROBJ; 4075 if (bfd_get_section_by_name (abfd, _LOADER) != NULL) 4076 internal_f.f_flags |= F_DYNLOAD; 4077 #endif 4078 4079 /* Set up architecture-dependent stuff. */ 4080 { 4081 unsigned int magic = 0; 4082 unsigned short flags = 0; 4083 4084 coff_set_flags (abfd, &magic, &flags); 4085 internal_f.f_magic = magic; 4086 internal_f.f_flags |= flags; 4087 /* ...and the "opt"hdr... */ 4088 4089 #ifdef TICOFF_AOUT_MAGIC 4090 internal_a.magic = TICOFF_AOUT_MAGIC; 4091 #define __A_MAGIC_SET__ 4092 #endif 4093 #ifdef TIC80COFF 4094 internal_a.magic = TIC80_ARCH_MAGIC; 4095 #define __A_MAGIC_SET__ 4096 #endif /* TIC80 */ 4097 #ifdef I860 4098 /* FIXME: What are the a.out magic numbers for the i860? */ 4099 internal_a.magic = 0; 4100 #define __A_MAGIC_SET__ 4101 #endif /* I860 */ 4102 #ifdef I960 4103 internal_a.magic = (magic == I960ROMAGIC ? NMAGIC : OMAGIC); 4104 #define __A_MAGIC_SET__ 4105 #endif /* I960 */ 4106 #if M88 4107 #define __A_MAGIC_SET__ 4108 internal_a.magic = PAGEMAGICBCS; 4109 #endif /* M88 */ 4110 4111 #if APOLLO_M68 4112 #define __A_MAGIC_SET__ 4113 internal_a.magic = APOLLO_COFF_VERSION_NUMBER; 4114 #endif 4115 4116 #if defined(M68) || defined(WE32K) || defined(M68K) 4117 #define __A_MAGIC_SET__ 4118 #if defined(LYNXOS) 4119 internal_a.magic = LYNXCOFFMAGIC; 4120 #else 4121 #if defined(TARG_AUX) 4122 internal_a.magic = (abfd->flags & D_PAGED ? PAGEMAGICPEXECPAGED : 4123 abfd->flags & WP_TEXT ? PAGEMAGICPEXECSWAPPED : 4124 PAGEMAGICEXECSWAPPED); 4125 #else 4126 #if defined (PAGEMAGICPEXECPAGED) 4127 internal_a.magic = PAGEMAGICPEXECPAGED; 4128 #endif 4129 #endif /* TARG_AUX */ 4130 #endif /* LYNXOS */ 4131 #endif /* M68 || WE32K || M68K */ 4132 4133 #if defined(ARM) 4134 #define __A_MAGIC_SET__ 4135 internal_a.magic = ZMAGIC; 4136 #endif 4137 4138 #if defined(PPC_PE) 4139 #define __A_MAGIC_SET__ 4140 internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC; 4141 #endif 4142 4143 #if defined MCORE_PE 4144 #define __A_MAGIC_SET__ 4145 internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC; 4146 #endif 4147 4148 #if defined(I386) 4149 #define __A_MAGIC_SET__ 4150 #if defined LYNXOS 4151 internal_a.magic = LYNXCOFFMAGIC; 4152 #elif defined AMD64 4153 internal_a.magic = IMAGE_NT_OPTIONAL_HDR64_MAGIC; 4154 #else 4155 internal_a.magic = ZMAGIC; 4156 #endif 4157 #endif /* I386 */ 4158 4159 #if defined(IA64) 4160 #define __A_MAGIC_SET__ 4161 internal_a.magic = PE32PMAGIC; 4162 #endif /* IA64 */ 4163 4164 #if defined(SPARC) 4165 #define __A_MAGIC_SET__ 4166 #if defined(LYNXOS) 4167 internal_a.magic = LYNXCOFFMAGIC; 4168 #endif /* LYNXOS */ 4169 #endif /* SPARC */ 4170 4171 #ifdef RS6000COFF_C 4172 #define __A_MAGIC_SET__ 4173 internal_a.magic = (abfd->flags & D_PAGED) ? RS6K_AOUTHDR_ZMAGIC : 4174 (abfd->flags & WP_TEXT) ? RS6K_AOUTHDR_NMAGIC : 4175 RS6K_AOUTHDR_OMAGIC; 4176 #endif 4177 4178 #if defined(SH) && defined(COFF_WITH_PE) 4179 #define __A_MAGIC_SET__ 4180 internal_a.magic = SH_PE_MAGIC; 4181 #endif 4182 4183 #if defined(MIPS) && defined(COFF_WITH_PE) 4184 #define __A_MAGIC_SET__ 4185 internal_a.magic = MIPS_PE_MAGIC; 4186 #endif 4187 4188 #ifndef __A_MAGIC_SET__ 4189 #include "Your aouthdr magic number is not being set!" 4190 #else 4191 #undef __A_MAGIC_SET__ 4192 #endif 4193 } 4194 4195 /* FIXME: Does anybody ever set this to another value? */ 4196 internal_a.vstamp = 0; 4197 4198 /* Now should write relocs, strings, syms. */ 4199 obj_sym_filepos (abfd) = sym_base; 4200 4201 if (bfd_get_symcount (abfd) != 0) 4202 { 4203 int firstundef; 4204 4205 if (!coff_renumber_symbols (abfd, &firstundef)) 4206 return FALSE; 4207 coff_mangle_symbols (abfd); 4208 if (! coff_write_symbols (abfd)) 4209 return FALSE; 4210 if (! coff_write_linenumbers (abfd)) 4211 return FALSE; 4212 if (! coff_write_relocs (abfd, firstundef)) 4213 return FALSE; 4214 } 4215 #ifdef COFF_LONG_SECTION_NAMES 4216 else if (long_section_names && ! obj_coff_strings_written (abfd)) 4217 { 4218 /* If we have long section names we have to write out the string 4219 table even if there are no symbols. */ 4220 if (! coff_write_symbols (abfd)) 4221 return FALSE; 4222 } 4223 #endif 4224 #ifdef COFF_IMAGE_WITH_PE 4225 #ifdef PPC_PE 4226 else if ((abfd->flags & EXEC_P) != 0) 4227 { 4228 bfd_byte b; 4229 4230 /* PowerPC PE appears to require that all executable files be 4231 rounded up to the page size. */ 4232 b = 0; 4233 if (bfd_seek (abfd, 4234 (file_ptr) BFD_ALIGN (sym_base, COFF_PAGE_SIZE) - 1, 4235 SEEK_SET) != 0 4236 || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1) 4237 return FALSE; 4238 } 4239 #endif 4240 #endif 4241 4242 /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF 4243 backend linker, and obj_raw_syment_count is not valid until after 4244 coff_write_symbols is called. */ 4245 if (obj_raw_syment_count (abfd) != 0) 4246 { 4247 internal_f.f_symptr = sym_base; 4248 #ifdef RS6000COFF_C 4249 /* AIX appears to require that F_RELFLG not be set if there are 4250 local symbols but no relocations. */ 4251 internal_f.f_flags &=~ F_RELFLG; 4252 #endif 4253 } 4254 else 4255 { 4256 if (long_section_names) 4257 internal_f.f_symptr = sym_base; 4258 else 4259 internal_f.f_symptr = 0; 4260 internal_f.f_flags |= F_LSYMS; 4261 } 4262 4263 if (text_sec) 4264 { 4265 internal_a.tsize = text_sec->size; 4266 internal_a.text_start = internal_a.tsize ? text_sec->vma : 0; 4267 } 4268 if (data_sec) 4269 { 4270 internal_a.dsize = data_sec->size; 4271 internal_a.data_start = internal_a.dsize ? data_sec->vma : 0; 4272 } 4273 if (bss_sec) 4274 { 4275 internal_a.bsize = bss_sec->size; 4276 if (internal_a.bsize && bss_sec->vma < internal_a.data_start) 4277 internal_a.data_start = bss_sec->vma; 4278 } 4279 4280 internal_a.entry = bfd_get_start_address (abfd); 4281 internal_f.f_nsyms = obj_raw_syment_count (abfd); 4282 4283 #ifdef RS6000COFF_C 4284 if (xcoff_data (abfd)->full_aouthdr) 4285 { 4286 bfd_vma toc; 4287 asection *loader_sec; 4288 4289 internal_a.vstamp = 1; 4290 4291 internal_a.o_snentry = xcoff_data (abfd)->snentry; 4292 if (internal_a.o_snentry == 0) 4293 internal_a.entry = (bfd_vma) -1; 4294 4295 if (text_sec != NULL) 4296 { 4297 internal_a.o_sntext = text_sec->target_index; 4298 internal_a.o_algntext = bfd_get_section_alignment (abfd, text_sec); 4299 } 4300 else 4301 { 4302 internal_a.o_sntext = 0; 4303 internal_a.o_algntext = 0; 4304 } 4305 if (data_sec != NULL) 4306 { 4307 internal_a.o_sndata = data_sec->target_index; 4308 internal_a.o_algndata = bfd_get_section_alignment (abfd, data_sec); 4309 } 4310 else 4311 { 4312 internal_a.o_sndata = 0; 4313 internal_a.o_algndata = 0; 4314 } 4315 loader_sec = bfd_get_section_by_name (abfd, ".loader"); 4316 if (loader_sec != NULL) 4317 internal_a.o_snloader = loader_sec->target_index; 4318 else 4319 internal_a.o_snloader = 0; 4320 if (bss_sec != NULL) 4321 internal_a.o_snbss = bss_sec->target_index; 4322 else 4323 internal_a.o_snbss = 0; 4324 4325 toc = xcoff_data (abfd)->toc; 4326 internal_a.o_toc = toc; 4327 internal_a.o_sntoc = xcoff_data (abfd)->sntoc; 4328 4329 internal_a.o_modtype = xcoff_data (abfd)->modtype; 4330 if (xcoff_data (abfd)->cputype != -1) 4331 internal_a.o_cputype = xcoff_data (abfd)->cputype; 4332 else 4333 { 4334 switch (bfd_get_arch (abfd)) 4335 { 4336 case bfd_arch_rs6000: 4337 internal_a.o_cputype = 4; 4338 break; 4339 case bfd_arch_powerpc: 4340 if (bfd_get_mach (abfd) == bfd_mach_ppc) 4341 internal_a.o_cputype = 3; 4342 else 4343 internal_a.o_cputype = 1; 4344 break; 4345 default: 4346 abort (); 4347 } 4348 } 4349 internal_a.o_maxstack = xcoff_data (abfd)->maxstack; 4350 internal_a.o_maxdata = xcoff_data (abfd)->maxdata; 4351 } 4352 #endif 4353 4354 #ifdef COFF_WITH_PE 4355 { 4356 /* After object contents are finalized so we can compute a reasonable hash, 4357 but before header is written so we can update it to point to debug directory. */ 4358 struct pe_tdata *pe = pe_data (abfd); 4359 4360 if (pe->build_id.after_write_object_contents != NULL) 4361 (*pe->build_id.after_write_object_contents) (abfd); 4362 } 4363 #endif 4364 4365 /* Now write header. */ 4366 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) 4367 return FALSE; 4368 4369 { 4370 char * buff; 4371 bfd_size_type amount = bfd_coff_filhsz (abfd); 4372 4373 buff = (char *) bfd_malloc (amount); 4374 if (buff == NULL) 4375 return FALSE; 4376 4377 bfd_coff_swap_filehdr_out (abfd, & internal_f, buff); 4378 amount = bfd_bwrite (buff, amount, abfd); 4379 4380 free (buff); 4381 4382 if (amount != bfd_coff_filhsz (abfd)) 4383 return FALSE; 4384 } 4385 4386 if (abfd->flags & EXEC_P) 4387 { 4388 /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR. 4389 include/coff/pe.h sets AOUTSZ == sizeof (PEAOUTHDR)). */ 4390 char * buff; 4391 bfd_size_type amount = bfd_coff_aoutsz (abfd); 4392 4393 buff = (char *) bfd_malloc (amount); 4394 if (buff == NULL) 4395 return FALSE; 4396 4397 coff_swap_aouthdr_out (abfd, & internal_a, buff); 4398 amount = bfd_bwrite (buff, amount, abfd); 4399 4400 free (buff); 4401 4402 if (amount != bfd_coff_aoutsz (abfd)) 4403 return FALSE; 4404 4405 #ifdef COFF_IMAGE_WITH_PE 4406 if (! coff_apply_checksum (abfd)) 4407 return FALSE; 4408 #endif 4409 } 4410 #ifdef RS6000COFF_C 4411 else 4412 { 4413 AOUTHDR buff; 4414 size_t size; 4415 4416 /* XCOFF seems to always write at least a small a.out header. */ 4417 coff_swap_aouthdr_out (abfd, & internal_a, & buff); 4418 if (xcoff_data (abfd)->full_aouthdr) 4419 size = bfd_coff_aoutsz (abfd); 4420 else 4421 size = SMALL_AOUTSZ; 4422 if (bfd_bwrite (& buff, (bfd_size_type) size, abfd) != size) 4423 return FALSE; 4424 } 4425 #endif 4426 4427 return TRUE; 4428 } 4429 4430 static bfd_boolean 4431 coff_set_section_contents (bfd * abfd, 4432 sec_ptr section, 4433 const void * location, 4434 file_ptr offset, 4435 bfd_size_type count) 4436 { 4437 if (! abfd->output_has_begun) /* Set by bfd.c handler. */ 4438 { 4439 if (! coff_compute_section_file_positions (abfd)) 4440 return FALSE; 4441 } 4442 4443 #if defined(_LIB) && !defined(TARG_AUX) 4444 /* The physical address field of a .lib section is used to hold the 4445 number of shared libraries in the section. This code counts the 4446 number of sections being written, and increments the lma field 4447 with the number. 4448 4449 I have found no documentation on the contents of this section. 4450 Experimentation indicates that the section contains zero or more 4451 records, each of which has the following structure: 4452 4453 - a (four byte) word holding the length of this record, in words, 4454 - a word that always seems to be set to "2", 4455 - the path to a shared library, null-terminated and then padded 4456 to a whole word boundary. 4457 4458 bfd_assert calls have been added to alert if an attempt is made 4459 to write a section which doesn't follow these assumptions. The 4460 code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe 4461 <robertl@arnet.com> (Thanks!). 4462 4463 Gvran Uddeborg <gvran@uddeborg.pp.se>. */ 4464 if (strcmp (section->name, _LIB) == 0) 4465 { 4466 bfd_byte *rec, *recend; 4467 4468 rec = (bfd_byte *) location; 4469 recend = rec + count; 4470 while (rec < recend) 4471 { 4472 ++section->lma; 4473 rec += bfd_get_32 (abfd, rec) * 4; 4474 } 4475 4476 BFD_ASSERT (rec == recend); 4477 } 4478 #endif 4479 4480 /* Don't write out bss sections - one way to do this is to 4481 see if the filepos has not been set. */ 4482 if (section->filepos == 0) 4483 return TRUE; 4484 4485 if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0) 4486 return FALSE; 4487 4488 if (count == 0) 4489 return TRUE; 4490 4491 return bfd_bwrite (location, count, abfd) == count; 4492 } 4493 4494 static void * 4495 buy_and_read (bfd *abfd, file_ptr where, bfd_size_type size) 4496 { 4497 void * area = bfd_alloc (abfd, size); 4498 4499 if (!area) 4500 return NULL; 4501 if (bfd_seek (abfd, where, SEEK_SET) != 0 4502 || bfd_bread (area, size, abfd) != size) 4503 return NULL; 4504 return area; 4505 } 4506 4507 /* 4508 SUBSUBSECTION 4509 Reading linenumbers 4510 4511 Creating the linenumber table is done by reading in the entire 4512 coff linenumber table, and creating another table for internal use. 4513 4514 A coff linenumber table is structured so that each function 4515 is marked as having a line number of 0. Each line within the 4516 function is an offset from the first line in the function. The 4517 base of the line number information for the table is stored in 4518 the symbol associated with the function. 4519 4520 Note: The PE format uses line number 0 for a flag indicating a 4521 new source file. 4522 4523 The information is copied from the external to the internal 4524 table, and each symbol which marks a function is marked by 4525 pointing its... 4526 4527 How does this work ? 4528 */ 4529 4530 static int 4531 coff_sort_func_alent (const void * arg1, const void * arg2) 4532 { 4533 const alent *al1 = *(const alent **) arg1; 4534 const alent *al2 = *(const alent **) arg2; 4535 const coff_symbol_type *s1 = (const coff_symbol_type *) (al1->u.sym); 4536 const coff_symbol_type *s2 = (const coff_symbol_type *) (al2->u.sym); 4537 4538 if (s1 == NULL || s2 == NULL) 4539 return 0; 4540 if (s1->symbol.value < s2->symbol.value) 4541 return -1; 4542 else if (s1->symbol.value > s2->symbol.value) 4543 return 1; 4544 4545 return 0; 4546 } 4547 4548 static bfd_boolean 4549 coff_slurp_line_table (bfd *abfd, asection *asect) 4550 { 4551 LINENO *native_lineno; 4552 alent *lineno_cache; 4553 bfd_size_type amt; 4554 unsigned int counter; 4555 alent *cache_ptr; 4556 bfd_vma prev_offset = 0; 4557 bfd_boolean ordered = TRUE; 4558 unsigned int nbr_func; 4559 LINENO *src; 4560 bfd_boolean have_func; 4561 bfd_boolean ret = TRUE; 4562 4563 BFD_ASSERT (asect->lineno == NULL); 4564 4565 amt = ((bfd_size_type) asect->lineno_count + 1) * sizeof (alent); 4566 lineno_cache = (alent *) bfd_alloc (abfd, amt); 4567 if (lineno_cache == NULL) 4568 return FALSE; 4569 4570 amt = (bfd_size_type) bfd_coff_linesz (abfd) * asect->lineno_count; 4571 native_lineno = (LINENO *) buy_and_read (abfd, asect->line_filepos, amt); 4572 if (native_lineno == NULL) 4573 { 4574 (*_bfd_error_handler) 4575 (_("%B: warning: line number table read failed"), abfd); 4576 bfd_release (abfd, lineno_cache); 4577 return FALSE; 4578 } 4579 4580 cache_ptr = lineno_cache; 4581 asect->lineno = lineno_cache; 4582 src = native_lineno; 4583 nbr_func = 0; 4584 have_func = FALSE; 4585 4586 for (counter = 0; counter < asect->lineno_count; counter++, src++) 4587 { 4588 struct internal_lineno dst; 4589 4590 bfd_coff_swap_lineno_in (abfd, src, &dst); 4591 cache_ptr->line_number = dst.l_lnno; 4592 /* Appease memory checkers that get all excited about 4593 uninitialised memory when copying alents if u.offset is 4594 larger than u.sym. (64-bit BFD on 32-bit host.) */ 4595 memset (&cache_ptr->u, 0, sizeof (cache_ptr->u)); 4596 4597 if (cache_ptr->line_number == 0) 4598 { 4599 combined_entry_type * ent; 4600 bfd_vma symndx; 4601 coff_symbol_type *sym; 4602 4603 have_func = FALSE; 4604 symndx = dst.l_addr.l_symndx; 4605 if (symndx >= obj_raw_syment_count (abfd)) 4606 { 4607 (*_bfd_error_handler) 4608 (_("%B: warning: illegal symbol index 0x%lx in line number entry %d"), 4609 abfd, (long) symndx, counter); 4610 cache_ptr->line_number = -1; 4611 ret = FALSE; 4612 continue; 4613 } 4614 4615 ent = obj_raw_syments (abfd) + symndx; 4616 /* FIXME: We should not be casting between ints and 4617 pointers like this. */ 4618 if (! ent->is_sym) 4619 { 4620 (*_bfd_error_handler) 4621 (_("%B: warning: illegal symbol index 0x%lx in line number entry %d"), 4622 abfd, (long) symndx, counter); 4623 cache_ptr->line_number = -1; 4624 ret = FALSE; 4625 continue; 4626 } 4627 sym = (coff_symbol_type *) (ent->u.syment._n._n_n._n_zeroes); 4628 4629 /* PR 17512 file: 078-10659-0.004 */ 4630 if (sym < obj_symbols (abfd) 4631 || sym >= obj_symbols (abfd) + bfd_get_symcount (abfd)) 4632 { 4633 (*_bfd_error_handler) 4634 (_("%B: warning: illegal symbol in line number entry %d"), 4635 abfd, counter); 4636 cache_ptr->line_number = -1; 4637 ret = FALSE; 4638 continue; 4639 } 4640 4641 have_func = TRUE; 4642 nbr_func++; 4643 cache_ptr->u.sym = (asymbol *) sym; 4644 if (sym->lineno != NULL) 4645 (*_bfd_error_handler) 4646 (_("%B: warning: duplicate line number information for `%s'"), 4647 abfd, bfd_asymbol_name (&sym->symbol)); 4648 4649 sym->lineno = cache_ptr; 4650 if (sym->symbol.value < prev_offset) 4651 ordered = FALSE; 4652 prev_offset = sym->symbol.value; 4653 } 4654 else if (!have_func) 4655 /* Drop line information that has no associated function. 4656 PR 17521: file: 078-10659-0.004. */ 4657 continue; 4658 else 4659 cache_ptr->u.offset = (dst.l_addr.l_paddr 4660 - bfd_section_vma (abfd, asect)); 4661 cache_ptr++; 4662 } 4663 4664 asect->lineno_count = cache_ptr - lineno_cache; 4665 memset (cache_ptr, 0, sizeof (*cache_ptr)); 4666 bfd_release (abfd, native_lineno); 4667 4668 /* On some systems (eg AIX5.3) the lineno table may not be sorted. */ 4669 if (!ordered) 4670 { 4671 /* Sort the table. */ 4672 alent **func_table; 4673 alent *n_lineno_cache; 4674 4675 /* Create a table of functions. */ 4676 func_table = (alent **) bfd_alloc (abfd, nbr_func * sizeof (alent *)); 4677 if (func_table != NULL) 4678 { 4679 alent **p = func_table; 4680 unsigned int i; 4681 4682 for (i = 0; i < asect->lineno_count; i++) 4683 if (lineno_cache[i].line_number == 0) 4684 *p++ = &lineno_cache[i]; 4685 4686 BFD_ASSERT ((unsigned int) (p - func_table) == nbr_func); 4687 4688 /* Sort by functions. */ 4689 qsort (func_table, nbr_func, sizeof (alent *), coff_sort_func_alent); 4690 4691 /* Create the new sorted table. */ 4692 amt = (bfd_size_type) asect->lineno_count * sizeof (alent); 4693 n_lineno_cache = (alent *) bfd_alloc (abfd, amt); 4694 if (n_lineno_cache != NULL) 4695 { 4696 alent *n_cache_ptr = n_lineno_cache; 4697 4698 for (i = 0; i < nbr_func; i++) 4699 { 4700 coff_symbol_type *sym; 4701 alent *old_ptr = func_table[i]; 4702 4703 /* Update the function entry. */ 4704 sym = (coff_symbol_type *) old_ptr->u.sym; 4705 /* PR binutils/17512: Point the lineno to where 4706 this entry will be after the memcpy below. */ 4707 sym->lineno = lineno_cache + (n_cache_ptr - n_lineno_cache); 4708 /* Copy the function and line number entries. */ 4709 do 4710 *n_cache_ptr++ = *old_ptr++; 4711 while (old_ptr->line_number != 0); 4712 } 4713 BFD_ASSERT ((bfd_size_type) (n_cache_ptr - n_lineno_cache) == (amt / sizeof (alent))); 4714 4715 memcpy (lineno_cache, n_lineno_cache, amt); 4716 } 4717 else 4718 ret = FALSE; 4719 bfd_release (abfd, func_table); 4720 } 4721 else 4722 ret = FALSE; 4723 } 4724 4725 return ret; 4726 } 4727 4728 /* Slurp in the symbol table, converting it to generic form. Note 4729 that if coff_relocate_section is defined, the linker will read 4730 symbols via coff_link_add_symbols, rather than via this routine. */ 4731 4732 static bfd_boolean 4733 coff_slurp_symbol_table (bfd * abfd) 4734 { 4735 combined_entry_type *native_symbols; 4736 coff_symbol_type *cached_area; 4737 unsigned int *table_ptr; 4738 bfd_size_type amt; 4739 unsigned int number_of_symbols = 0; 4740 bfd_boolean ret = TRUE; 4741 4742 if (obj_symbols (abfd)) 4743 return TRUE; 4744 4745 /* Read in the symbol table. */ 4746 if ((native_symbols = coff_get_normalized_symtab (abfd)) == NULL) 4747 return FALSE; 4748 4749 /* Allocate enough room for all the symbols in cached form. */ 4750 amt = obj_raw_syment_count (abfd); 4751 amt *= sizeof (coff_symbol_type); 4752 cached_area = (coff_symbol_type *) bfd_alloc (abfd, amt); 4753 if (cached_area == NULL) 4754 return FALSE; 4755 4756 amt = obj_raw_syment_count (abfd); 4757 amt *= sizeof (unsigned int); 4758 table_ptr = (unsigned int *) bfd_zalloc (abfd, amt); 4759 4760 if (table_ptr == NULL) 4761 return FALSE; 4762 else 4763 { 4764 coff_symbol_type *dst = cached_area; 4765 unsigned int last_native_index = obj_raw_syment_count (abfd); 4766 unsigned int this_index = 0; 4767 4768 while (this_index < last_native_index) 4769 { 4770 combined_entry_type *src = native_symbols + this_index; 4771 table_ptr[this_index] = number_of_symbols; 4772 4773 dst->symbol.the_bfd = abfd; 4774 BFD_ASSERT (src->is_sym); 4775 dst->symbol.name = (char *) (src->u.syment._n._n_n._n_offset); 4776 /* We use the native name field to point to the cached field. */ 4777 src->u.syment._n._n_n._n_zeroes = (bfd_hostptr_t) dst; 4778 dst->symbol.section = coff_section_from_bfd_index (abfd, 4779 src->u.syment.n_scnum); 4780 dst->symbol.flags = 0; 4781 /* PR 17512: file: 079-7098-0.001:0.1. */ 4782 dst->symbol.value = 0; 4783 dst->done_lineno = FALSE; 4784 4785 switch (src->u.syment.n_sclass) 4786 { 4787 #ifdef I960 4788 case C_LEAFEXT: 4789 /* Fall through to next case. */ 4790 #endif 4791 4792 case C_EXT: 4793 case C_WEAKEXT: 4794 #if defined ARM 4795 case C_THUMBEXT: 4796 case C_THUMBEXTFUNC: 4797 #endif 4798 #ifdef RS6000COFF_C 4799 case C_HIDEXT: 4800 #endif 4801 #ifdef C_SYSTEM 4802 case C_SYSTEM: /* System Wide variable. */ 4803 #endif 4804 #ifdef COFF_WITH_PE 4805 /* In PE, 0x68 (104) denotes a section symbol. */ 4806 case C_SECTION: 4807 /* In PE, 0x69 (105) denotes a weak external symbol. */ 4808 case C_NT_WEAK: 4809 #endif 4810 switch (coff_classify_symbol (abfd, &src->u.syment)) 4811 { 4812 case COFF_SYMBOL_GLOBAL: 4813 dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL; 4814 #if defined COFF_WITH_PE 4815 /* PE sets the symbol to a value relative to the 4816 start of the section. */ 4817 dst->symbol.value = src->u.syment.n_value; 4818 #else 4819 dst->symbol.value = (src->u.syment.n_value 4820 - dst->symbol.section->vma); 4821 #endif 4822 if (ISFCN ((src->u.syment.n_type))) 4823 /* A function ext does not go at the end of a 4824 file. */ 4825 dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION; 4826 break; 4827 4828 case COFF_SYMBOL_COMMON: 4829 dst->symbol.section = bfd_com_section_ptr; 4830 dst->symbol.value = src->u.syment.n_value; 4831 break; 4832 4833 case COFF_SYMBOL_UNDEFINED: 4834 dst->symbol.section = bfd_und_section_ptr; 4835 dst->symbol.value = 0; 4836 break; 4837 4838 case COFF_SYMBOL_PE_SECTION: 4839 dst->symbol.flags |= BSF_EXPORT | BSF_SECTION_SYM; 4840 dst->symbol.value = 0; 4841 break; 4842 4843 case COFF_SYMBOL_LOCAL: 4844 dst->symbol.flags = BSF_LOCAL; 4845 #if defined COFF_WITH_PE 4846 /* PE sets the symbol to a value relative to the 4847 start of the section. */ 4848 dst->symbol.value = src->u.syment.n_value; 4849 #else 4850 dst->symbol.value = (src->u.syment.n_value 4851 - dst->symbol.section->vma); 4852 #endif 4853 if (ISFCN ((src->u.syment.n_type))) 4854 dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION; 4855 break; 4856 } 4857 4858 #ifdef RS6000COFF_C 4859 /* A symbol with a csect entry should not go at the end. */ 4860 if (src->u.syment.n_numaux > 0) 4861 dst->symbol.flags |= BSF_NOT_AT_END; 4862 #endif 4863 4864 #ifdef COFF_WITH_PE 4865 if (src->u.syment.n_sclass == C_NT_WEAK) 4866 dst->symbol.flags |= BSF_WEAK; 4867 4868 if (src->u.syment.n_sclass == C_SECTION 4869 && src->u.syment.n_scnum > 0) 4870 dst->symbol.flags = BSF_LOCAL; 4871 #endif 4872 if (src->u.syment.n_sclass == C_WEAKEXT) 4873 dst->symbol.flags |= BSF_WEAK; 4874 4875 break; 4876 4877 case C_STAT: /* Static. */ 4878 #ifdef I960 4879 case C_LEAFSTAT: /* Static leaf procedure. */ 4880 #endif 4881 #if defined ARM 4882 case C_THUMBSTAT: /* Thumb static. */ 4883 case C_THUMBLABEL: /* Thumb label. */ 4884 case C_THUMBSTATFUNC:/* Thumb static function. */ 4885 #endif 4886 #ifdef RS6000COFF_C 4887 case C_DWARF: /* A label in a dwarf section. */ 4888 case C_INFO: /* A label in a comment section. */ 4889 #endif 4890 case C_LABEL: /* Label. */ 4891 if (src->u.syment.n_scnum == N_DEBUG) 4892 dst->symbol.flags = BSF_DEBUGGING; 4893 else 4894 dst->symbol.flags = BSF_LOCAL; 4895 4896 /* Base the value as an index from the base of the 4897 section, if there is one. */ 4898 if (dst->symbol.section) 4899 { 4900 #if defined COFF_WITH_PE 4901 /* PE sets the symbol to a value relative to the 4902 start of the section. */ 4903 dst->symbol.value = src->u.syment.n_value; 4904 #else 4905 dst->symbol.value = (src->u.syment.n_value 4906 - dst->symbol.section->vma); 4907 #endif 4908 } 4909 else 4910 dst->symbol.value = src->u.syment.n_value; 4911 break; 4912 4913 case C_MOS: /* Member of structure. */ 4914 case C_EOS: /* End of structure. */ 4915 case C_REGPARM: /* Register parameter. */ 4916 case C_REG: /* register variable. */ 4917 /* C_AUTOARG conflicts with TI COFF C_UEXT. */ 4918 #if !defined (TIC80COFF) && !defined (TICOFF) 4919 #ifdef C_AUTOARG 4920 case C_AUTOARG: /* 960-specific storage class. */ 4921 #endif 4922 #endif 4923 case C_TPDEF: /* Type definition. */ 4924 case C_ARG: 4925 case C_AUTO: /* Automatic variable. */ 4926 case C_FIELD: /* Bit field. */ 4927 case C_ENTAG: /* Enumeration tag. */ 4928 case C_MOE: /* Member of enumeration. */ 4929 case C_MOU: /* Member of union. */ 4930 case C_UNTAG: /* Union tag. */ 4931 dst->symbol.flags = BSF_DEBUGGING; 4932 dst->symbol.value = (src->u.syment.n_value); 4933 break; 4934 4935 case C_FILE: /* File name. */ 4936 case C_STRTAG: /* Structure tag. */ 4937 #ifdef RS6000COFF_C 4938 case C_GSYM: 4939 case C_LSYM: 4940 case C_PSYM: 4941 case C_RSYM: 4942 case C_RPSYM: 4943 case C_STSYM: 4944 case C_TCSYM: 4945 case C_BCOMM: 4946 case C_ECOML: 4947 case C_ECOMM: 4948 case C_DECL: 4949 case C_ENTRY: 4950 case C_FUN: 4951 case C_ESTAT: 4952 #endif 4953 dst->symbol.flags = BSF_DEBUGGING; 4954 dst->symbol.value = (src->u.syment.n_value); 4955 break; 4956 4957 #ifdef RS6000COFF_C 4958 case C_BINCL: /* Beginning of include file. */ 4959 case C_EINCL: /* Ending of include file. */ 4960 /* The value is actually a pointer into the line numbers 4961 of the file. We locate the line number entry, and 4962 set the section to the section which contains it, and 4963 the value to the index in that section. */ 4964 { 4965 asection *sec; 4966 4967 dst->symbol.flags = BSF_DEBUGGING; 4968 for (sec = abfd->sections; sec != NULL; sec = sec->next) 4969 if (sec->line_filepos <= (file_ptr) src->u.syment.n_value 4970 && ((file_ptr) (sec->line_filepos 4971 + sec->lineno_count * bfd_coff_linesz (abfd)) 4972 > (file_ptr) src->u.syment.n_value)) 4973 break; 4974 if (sec == NULL) 4975 dst->symbol.value = 0; 4976 else 4977 { 4978 dst->symbol.section = sec; 4979 dst->symbol.value = ((src->u.syment.n_value 4980 - sec->line_filepos) 4981 / bfd_coff_linesz (abfd)); 4982 src->fix_line = 1; 4983 } 4984 } 4985 break; 4986 4987 case C_BSTAT: 4988 dst->symbol.flags = BSF_DEBUGGING; 4989 4990 /* The value is actually a symbol index. Save a pointer 4991 to the symbol instead of the index. FIXME: This 4992 should use a union. */ 4993 src->u.syment.n_value = 4994 (long) (intptr_t) (native_symbols + src->u.syment.n_value); 4995 dst->symbol.value = src->u.syment.n_value; 4996 src->fix_value = 1; 4997 break; 4998 #endif 4999 5000 case C_BLOCK: /* ".bb" or ".eb". */ 5001 case C_FCN: /* ".bf" or ".ef" (or PE ".lf"). */ 5002 case C_EFCN: /* Physical end of function. */ 5003 #if defined COFF_WITH_PE 5004 /* PE sets the symbol to a value relative to the start 5005 of the section. */ 5006 dst->symbol.value = src->u.syment.n_value; 5007 if (strcmp (dst->symbol.name, ".bf") != 0) 5008 { 5009 /* PE uses funny values for .ef and .lf; don't 5010 relocate them. */ 5011 dst->symbol.flags = BSF_DEBUGGING; 5012 } 5013 else 5014 dst->symbol.flags = BSF_DEBUGGING | BSF_DEBUGGING_RELOC; 5015 #else 5016 /* Base the value as an index from the base of the 5017 section. */ 5018 dst->symbol.flags = BSF_LOCAL; 5019 dst->symbol.value = (src->u.syment.n_value 5020 - dst->symbol.section->vma); 5021 #endif 5022 break; 5023 5024 case C_STATLAB: /* Static load time label. */ 5025 dst->symbol.value = src->u.syment.n_value; 5026 dst->symbol.flags = BSF_GLOBAL; 5027 break; 5028 5029 case C_NULL: 5030 /* PE DLLs sometimes have zeroed out symbols for some 5031 reason. Just ignore them without a warning. */ 5032 if (src->u.syment.n_type == 0 5033 && src->u.syment.n_value == 0 5034 && src->u.syment.n_scnum == 0) 5035 break; 5036 #ifdef RS6000COFF_C 5037 /* XCOFF specific: deleted entry. */ 5038 if (src->u.syment.n_value == C_NULL_VALUE) 5039 break; 5040 #endif 5041 /* Fall through. */ 5042 case C_EXTDEF: /* External definition. */ 5043 case C_ULABEL: /* Undefined label. */ 5044 case C_USTATIC: /* Undefined static. */ 5045 #ifndef COFF_WITH_PE 5046 /* C_LINE in regular coff is 0x68. NT has taken over this storage 5047 class to represent a section symbol. */ 5048 case C_LINE: /* line # reformatted as symbol table entry. */ 5049 /* NT uses 0x67 for a weak symbol, not C_ALIAS. */ 5050 case C_ALIAS: /* Duplicate tag. */ 5051 #endif 5052 /* New storage classes for TI COFF. */ 5053 #if defined(TIC80COFF) || defined(TICOFF) 5054 case C_UEXT: /* Tentative external definition. */ 5055 #endif 5056 default: 5057 (*_bfd_error_handler) 5058 (_("%B: Unrecognized storage class %d for %s symbol `%s'"), 5059 abfd, src->u.syment.n_sclass, 5060 dst->symbol.section->name, dst->symbol.name); 5061 ret = FALSE; 5062 case C_EXTLAB: /* External load time label. */ 5063 case C_HIDDEN: /* Ext symbol in dmert public lib. */ 5064 dst->symbol.flags = BSF_DEBUGGING; 5065 dst->symbol.value = (src->u.syment.n_value); 5066 break; 5067 } 5068 5069 dst->native = src; 5070 dst->symbol.udata.i = 0; 5071 dst->lineno = NULL; 5072 5073 this_index += (src->u.syment.n_numaux) + 1; 5074 dst++; 5075 number_of_symbols++; 5076 } 5077 } 5078 5079 obj_symbols (abfd) = cached_area; 5080 obj_raw_syments (abfd) = native_symbols; 5081 5082 bfd_get_symcount (abfd) = number_of_symbols; 5083 obj_convert (abfd) = table_ptr; 5084 /* Slurp the line tables for each section too. */ 5085 { 5086 asection *p; 5087 5088 p = abfd->sections; 5089 while (p) 5090 { 5091 if (! coff_slurp_line_table (abfd, p)) 5092 return FALSE; 5093 p = p->next; 5094 } 5095 } 5096 5097 return ret; 5098 } 5099 5100 /* Classify a COFF symbol. A couple of targets have globally visible 5101 symbols which are not class C_EXT, and this handles those. It also 5102 recognizes some special PE cases. */ 5103 5104 static enum coff_symbol_classification 5105 coff_classify_symbol (bfd *abfd, 5106 struct internal_syment *syment) 5107 { 5108 /* FIXME: This partially duplicates the switch in 5109 coff_slurp_symbol_table. */ 5110 switch (syment->n_sclass) 5111 { 5112 case C_EXT: 5113 case C_WEAKEXT: 5114 #ifdef I960 5115 case C_LEAFEXT: 5116 #endif 5117 #ifdef ARM 5118 case C_THUMBEXT: 5119 case C_THUMBEXTFUNC: 5120 #endif 5121 #ifdef C_SYSTEM 5122 case C_SYSTEM: 5123 #endif 5124 #ifdef COFF_WITH_PE 5125 case C_NT_WEAK: 5126 #endif 5127 if (syment->n_scnum == 0) 5128 { 5129 if (syment->n_value == 0) 5130 return COFF_SYMBOL_UNDEFINED; 5131 else 5132 return COFF_SYMBOL_COMMON; 5133 } 5134 return COFF_SYMBOL_GLOBAL; 5135 5136 default: 5137 break; 5138 } 5139 5140 #ifdef COFF_WITH_PE 5141 if (syment->n_sclass == C_STAT) 5142 { 5143 if (syment->n_scnum == 0) 5144 /* The Microsoft compiler sometimes generates these if a 5145 small static function is inlined every time it is used. 5146 The function is discarded, but the symbol table entry 5147 remains. */ 5148 return COFF_SYMBOL_LOCAL; 5149 5150 #ifdef STRICT_PE_FORMAT 5151 /* This is correct for Microsoft generated objects, but it 5152 breaks gas generated objects. */ 5153 if (syment->n_value == 0) 5154 { 5155 asection *sec; 5156 char * name; 5157 char buf[SYMNMLEN + 1]; 5158 5159 name = _bfd_coff_internal_syment_name (abfd, syment, buf) 5160 sec = coff_section_from_bfd_index (abfd, syment->n_scnum); 5161 if (sec != NULL && name != NULL 5162 && (strcmp (bfd_get_section_name (abfd, sec), name) == 0)) 5163 return COFF_SYMBOL_PE_SECTION; 5164 } 5165 #endif 5166 5167 return COFF_SYMBOL_LOCAL; 5168 } 5169 5170 if (syment->n_sclass == C_SECTION) 5171 { 5172 /* In some cases in a DLL generated by the Microsoft linker, the 5173 n_value field will contain garbage. FIXME: This should 5174 probably be handled by the swapping function instead. */ 5175 syment->n_value = 0; 5176 if (syment->n_scnum == 0) 5177 return COFF_SYMBOL_UNDEFINED; 5178 return COFF_SYMBOL_PE_SECTION; 5179 } 5180 #endif /* COFF_WITH_PE */ 5181 5182 /* If it is not a global symbol, we presume it is a local symbol. */ 5183 if (syment->n_scnum == 0) 5184 { 5185 char buf[SYMNMLEN + 1]; 5186 5187 (*_bfd_error_handler) 5188 (_("warning: %B: local symbol `%s' has no section"), 5189 abfd, _bfd_coff_internal_syment_name (abfd, syment, buf)); 5190 } 5191 5192 return COFF_SYMBOL_LOCAL; 5193 } 5194 5195 /* 5196 SUBSUBSECTION 5197 Reading relocations 5198 5199 Coff relocations are easily transformed into the internal BFD form 5200 (@code{arelent}). 5201 5202 Reading a coff relocation table is done in the following stages: 5203 5204 o Read the entire coff relocation table into memory. 5205 5206 o Process each relocation in turn; first swap it from the 5207 external to the internal form. 5208 5209 o Turn the symbol referenced in the relocation's symbol index 5210 into a pointer into the canonical symbol table. 5211 This table is the same as the one returned by a call to 5212 @code{bfd_canonicalize_symtab}. The back end will call that 5213 routine and save the result if a canonicalization hasn't been done. 5214 5215 o The reloc index is turned into a pointer to a howto 5216 structure, in a back end specific way. For instance, the 386 5217 and 960 use the @code{r_type} to directly produce an index 5218 into a howto table vector; the 88k subtracts a number from the 5219 @code{r_type} field and creates an addend field. 5220 */ 5221 5222 #ifndef CALC_ADDEND 5223 #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \ 5224 { \ 5225 coff_symbol_type *coffsym = NULL; \ 5226 \ 5227 if (ptr && bfd_asymbol_bfd (ptr) != abfd) \ 5228 coffsym = (obj_symbols (abfd) \ 5229 + (cache_ptr->sym_ptr_ptr - symbols)); \ 5230 else if (ptr) \ 5231 coffsym = coff_symbol_from (ptr); \ 5232 if (coffsym != NULL \ 5233 && coffsym->native->is_sym \ 5234 && coffsym->native->u.syment.n_scnum == 0) \ 5235 cache_ptr->addend = 0; \ 5236 else if (ptr && bfd_asymbol_bfd (ptr) == abfd \ 5237 && ptr->section != NULL) \ 5238 cache_ptr->addend = - (ptr->section->vma + ptr->value); \ 5239 else \ 5240 cache_ptr->addend = 0; \ 5241 } 5242 #endif 5243 5244 static bfd_boolean 5245 coff_slurp_reloc_table (bfd * abfd, sec_ptr asect, asymbol ** symbols) 5246 { 5247 RELOC *native_relocs; 5248 arelent *reloc_cache; 5249 arelent *cache_ptr; 5250 unsigned int idx; 5251 bfd_size_type amt; 5252 5253 if (asect->relocation) 5254 return TRUE; 5255 if (asect->reloc_count == 0) 5256 return TRUE; 5257 if (asect->flags & SEC_CONSTRUCTOR) 5258 return TRUE; 5259 if (!coff_slurp_symbol_table (abfd)) 5260 return FALSE; 5261 5262 amt = (bfd_size_type) bfd_coff_relsz (abfd) * asect->reloc_count; 5263 native_relocs = (RELOC *) buy_and_read (abfd, asect->rel_filepos, amt); 5264 amt = (bfd_size_type) asect->reloc_count * sizeof (arelent); 5265 reloc_cache = (arelent *) bfd_alloc (abfd, amt); 5266 5267 if (reloc_cache == NULL || native_relocs == NULL) 5268 return FALSE; 5269 5270 for (idx = 0; idx < asect->reloc_count; idx++) 5271 { 5272 struct internal_reloc dst; 5273 struct external_reloc *src; 5274 #ifndef RELOC_PROCESSING 5275 asymbol *ptr; 5276 #endif 5277 5278 cache_ptr = reloc_cache + idx; 5279 src = native_relocs + idx; 5280 5281 dst.r_offset = 0; 5282 coff_swap_reloc_in (abfd, src, &dst); 5283 5284 #ifdef RELOC_PROCESSING 5285 RELOC_PROCESSING (cache_ptr, &dst, symbols, abfd, asect); 5286 #else 5287 cache_ptr->address = dst.r_vaddr; 5288 5289 if (dst.r_symndx != -1) 5290 { 5291 if (dst.r_symndx < 0 || dst.r_symndx >= obj_conv_table_size (abfd)) 5292 { 5293 (*_bfd_error_handler) 5294 (_("%B: warning: illegal symbol index %ld in relocs"), 5295 abfd, (long) dst.r_symndx); 5296 cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; 5297 ptr = NULL; 5298 } 5299 else 5300 { 5301 cache_ptr->sym_ptr_ptr = (symbols 5302 + obj_convert (abfd)[dst.r_symndx]); 5303 ptr = *(cache_ptr->sym_ptr_ptr); 5304 } 5305 } 5306 else 5307 { 5308 cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; 5309 ptr = NULL; 5310 } 5311 5312 /* The symbols definitions that we have read in have been 5313 relocated as if their sections started at 0. But the offsets 5314 refering to the symbols in the raw data have not been 5315 modified, so we have to have a negative addend to compensate. 5316 5317 Note that symbols which used to be common must be left alone. */ 5318 5319 /* Calculate any reloc addend by looking at the symbol. */ 5320 CALC_ADDEND (abfd, ptr, dst, cache_ptr); 5321 (void) ptr; 5322 5323 cache_ptr->address -= asect->vma; 5324 /* !! cache_ptr->section = NULL;*/ 5325 5326 /* Fill in the cache_ptr->howto field from dst.r_type. */ 5327 RTYPE2HOWTO (cache_ptr, &dst); 5328 #endif /* RELOC_PROCESSING */ 5329 5330 if (cache_ptr->howto == NULL) 5331 { 5332 (*_bfd_error_handler) 5333 (_("%B: illegal relocation type %d at address 0x%lx"), 5334 abfd, dst.r_type, (long) dst.r_vaddr); 5335 bfd_set_error (bfd_error_bad_value); 5336 return FALSE; 5337 } 5338 } 5339 5340 asect->relocation = reloc_cache; 5341 return TRUE; 5342 } 5343 5344 #ifndef coff_rtype_to_howto 5345 #ifdef RTYPE2HOWTO 5346 5347 /* Get the howto structure for a reloc. This is only used if the file 5348 including this one defines coff_relocate_section to be 5349 _bfd_coff_generic_relocate_section, so it is OK if it does not 5350 always work. It is the responsibility of the including file to 5351 make sure it is reasonable if it is needed. */ 5352 5353 static reloc_howto_type * 5354 coff_rtype_to_howto (bfd *abfd ATTRIBUTE_UNUSED, 5355 asection *sec ATTRIBUTE_UNUSED, 5356 struct internal_reloc *rel ATTRIBUTE_UNUSED, 5357 struct coff_link_hash_entry *h ATTRIBUTE_UNUSED, 5358 struct internal_syment *sym ATTRIBUTE_UNUSED, 5359 bfd_vma *addendp ATTRIBUTE_UNUSED) 5360 { 5361 arelent genrel; 5362 5363 genrel.howto = NULL; 5364 RTYPE2HOWTO (&genrel, rel); 5365 return genrel.howto; 5366 } 5367 5368 #else /* ! defined (RTYPE2HOWTO) */ 5369 5370 #define coff_rtype_to_howto NULL 5371 5372 #endif /* ! defined (RTYPE2HOWTO) */ 5373 #endif /* ! defined (coff_rtype_to_howto) */ 5374 5375 /* This is stupid. This function should be a boolean predicate. */ 5376 5377 static long 5378 coff_canonicalize_reloc (bfd * abfd, 5379 sec_ptr section, 5380 arelent ** relptr, 5381 asymbol ** symbols) 5382 { 5383 arelent *tblptr = section->relocation; 5384 unsigned int count = 0; 5385 5386 if (section->flags & SEC_CONSTRUCTOR) 5387 { 5388 /* This section has relocs made up by us, they are not in the 5389 file, so take them out of their chain and place them into 5390 the data area provided. */ 5391 arelent_chain *chain = section->constructor_chain; 5392 5393 for (count = 0; count < section->reloc_count; count++) 5394 { 5395 *relptr++ = &chain->relent; 5396 chain = chain->next; 5397 } 5398 } 5399 else 5400 { 5401 if (! coff_slurp_reloc_table (abfd, section, symbols)) 5402 return -1; 5403 5404 tblptr = section->relocation; 5405 5406 for (; count++ < section->reloc_count;) 5407 *relptr++ = tblptr++; 5408 } 5409 *relptr = 0; 5410 return section->reloc_count; 5411 } 5412 5413 #ifndef coff_reloc16_estimate 5414 #define coff_reloc16_estimate dummy_reloc16_estimate 5415 5416 static int 5417 dummy_reloc16_estimate (bfd *abfd ATTRIBUTE_UNUSED, 5418 asection *input_section ATTRIBUTE_UNUSED, 5419 arelent *reloc ATTRIBUTE_UNUSED, 5420 unsigned int shrink ATTRIBUTE_UNUSED, 5421 struct bfd_link_info *link_info ATTRIBUTE_UNUSED) 5422 { 5423 abort (); 5424 return 0; 5425 } 5426 5427 #endif 5428 5429 #ifndef coff_reloc16_extra_cases 5430 5431 #define coff_reloc16_extra_cases dummy_reloc16_extra_cases 5432 5433 /* This works even if abort is not declared in any header file. */ 5434 5435 static void 5436 dummy_reloc16_extra_cases (bfd *abfd ATTRIBUTE_UNUSED, 5437 struct bfd_link_info *link_info ATTRIBUTE_UNUSED, 5438 struct bfd_link_order *link_order ATTRIBUTE_UNUSED, 5439 arelent *reloc ATTRIBUTE_UNUSED, 5440 bfd_byte *data ATTRIBUTE_UNUSED, 5441 unsigned int *src_ptr ATTRIBUTE_UNUSED, 5442 unsigned int *dst_ptr ATTRIBUTE_UNUSED) 5443 { 5444 abort (); 5445 } 5446 #endif 5447 5448 /* If coff_relocate_section is defined, we can use the optimized COFF 5449 backend linker. Otherwise we must continue to use the old linker. */ 5450 5451 #ifdef coff_relocate_section 5452 5453 #ifndef coff_bfd_link_hash_table_create 5454 #define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create 5455 #endif 5456 #ifndef coff_bfd_link_add_symbols 5457 #define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols 5458 #endif 5459 #ifndef coff_bfd_final_link 5460 #define coff_bfd_final_link _bfd_coff_final_link 5461 #endif 5462 5463 #else /* ! defined (coff_relocate_section) */ 5464 5465 #define coff_relocate_section NULL 5466 #ifndef coff_bfd_link_hash_table_create 5467 #define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create 5468 #endif 5469 #ifndef coff_bfd_link_add_symbols 5470 #define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols 5471 #endif 5472 #define coff_bfd_final_link _bfd_generic_final_link 5473 5474 #endif /* ! defined (coff_relocate_section) */ 5475 5476 #define coff_bfd_link_just_syms _bfd_generic_link_just_syms 5477 #define coff_bfd_copy_link_hash_symbol_type \ 5478 _bfd_generic_copy_link_hash_symbol_type 5479 #define coff_bfd_link_split_section _bfd_generic_link_split_section 5480 5481 #ifndef coff_start_final_link 5482 #define coff_start_final_link NULL 5483 #endif 5484 5485 #ifndef coff_adjust_symndx 5486 #define coff_adjust_symndx NULL 5487 #endif 5488 5489 #ifndef coff_link_add_one_symbol 5490 #define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol 5491 #endif 5492 5493 #ifndef coff_link_output_has_begun 5494 5495 static bfd_boolean 5496 coff_link_output_has_begun (bfd * abfd, 5497 struct coff_final_link_info * info ATTRIBUTE_UNUSED) 5498 { 5499 return abfd->output_has_begun; 5500 } 5501 #endif 5502 5503 #ifndef coff_final_link_postscript 5504 5505 static bfd_boolean 5506 coff_final_link_postscript (bfd * abfd ATTRIBUTE_UNUSED, 5507 struct coff_final_link_info * pfinfo ATTRIBUTE_UNUSED) 5508 { 5509 return TRUE; 5510 } 5511 #endif 5512 5513 #ifndef coff_SWAP_aux_in 5514 #define coff_SWAP_aux_in coff_swap_aux_in 5515 #endif 5516 #ifndef coff_SWAP_sym_in 5517 #define coff_SWAP_sym_in coff_swap_sym_in 5518 #endif 5519 #ifndef coff_SWAP_lineno_in 5520 #define coff_SWAP_lineno_in coff_swap_lineno_in 5521 #endif 5522 #ifndef coff_SWAP_aux_out 5523 #define coff_SWAP_aux_out coff_swap_aux_out 5524 #endif 5525 #ifndef coff_SWAP_sym_out 5526 #define coff_SWAP_sym_out coff_swap_sym_out 5527 #endif 5528 #ifndef coff_SWAP_lineno_out 5529 #define coff_SWAP_lineno_out coff_swap_lineno_out 5530 #endif 5531 #ifndef coff_SWAP_reloc_out 5532 #define coff_SWAP_reloc_out coff_swap_reloc_out 5533 #endif 5534 #ifndef coff_SWAP_filehdr_out 5535 #define coff_SWAP_filehdr_out coff_swap_filehdr_out 5536 #endif 5537 #ifndef coff_SWAP_aouthdr_out 5538 #define coff_SWAP_aouthdr_out coff_swap_aouthdr_out 5539 #endif 5540 #ifndef coff_SWAP_scnhdr_out 5541 #define coff_SWAP_scnhdr_out coff_swap_scnhdr_out 5542 #endif 5543 #ifndef coff_SWAP_reloc_in 5544 #define coff_SWAP_reloc_in coff_swap_reloc_in 5545 #endif 5546 #ifndef coff_SWAP_filehdr_in 5547 #define coff_SWAP_filehdr_in coff_swap_filehdr_in 5548 #endif 5549 #ifndef coff_SWAP_aouthdr_in 5550 #define coff_SWAP_aouthdr_in coff_swap_aouthdr_in 5551 #endif 5552 #ifndef coff_SWAP_scnhdr_in 5553 #define coff_SWAP_scnhdr_in coff_swap_scnhdr_in 5554 #endif 5555 5556 static bfd_coff_backend_data bfd_coff_std_swap_table ATTRIBUTE_UNUSED = 5557 { 5558 coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in, 5559 coff_SWAP_aux_out, coff_SWAP_sym_out, 5560 coff_SWAP_lineno_out, coff_SWAP_reloc_out, 5561 coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out, 5562 coff_SWAP_scnhdr_out, 5563 FILHSZ, AOUTSZ, SCNHSZ, SYMESZ, AUXESZ, RELSZ, LINESZ, FILNMLEN, 5564 #ifdef COFF_LONG_FILENAMES 5565 TRUE, 5566 #else 5567 FALSE, 5568 #endif 5569 COFF_DEFAULT_LONG_SECTION_NAMES, 5570 COFF_DEFAULT_SECTION_ALIGNMENT_POWER, 5571 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS 5572 TRUE, 5573 #else 5574 FALSE, 5575 #endif 5576 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX 5577 4, 5578 #else 5579 2, 5580 #endif 5581 32768, 5582 coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in, 5583 coff_SWAP_reloc_in, coff_bad_format_hook, coff_set_arch_mach_hook, 5584 coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook, 5585 coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook, 5586 coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate, 5587 coff_classify_symbol, coff_compute_section_file_positions, 5588 coff_start_final_link, coff_relocate_section, coff_rtype_to_howto, 5589 coff_adjust_symndx, coff_link_add_one_symbol, 5590 coff_link_output_has_begun, coff_final_link_postscript, 5591 bfd_pe_print_pdata 5592 }; 5593 5594 #ifdef TICOFF 5595 /* COFF0 differs in file/section header size and relocation entry size. */ 5596 5597 static bfd_coff_backend_data ticoff0_swap_table = 5598 { 5599 coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in, 5600 coff_SWAP_aux_out, coff_SWAP_sym_out, 5601 coff_SWAP_lineno_out, coff_SWAP_reloc_out, 5602 coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out, 5603 coff_SWAP_scnhdr_out, 5604 FILHSZ_V0, AOUTSZ, SCNHSZ_V01, SYMESZ, AUXESZ, RELSZ_V0, LINESZ, FILNMLEN, 5605 #ifdef COFF_LONG_FILENAMES 5606 TRUE, 5607 #else 5608 FALSE, 5609 #endif 5610 COFF_DEFAULT_LONG_SECTION_NAMES, 5611 COFF_DEFAULT_SECTION_ALIGNMENT_POWER, 5612 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS 5613 TRUE, 5614 #else 5615 FALSE, 5616 #endif 5617 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX 5618 4, 5619 #else 5620 2, 5621 #endif 5622 32768, 5623 coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in, 5624 coff_SWAP_reloc_in, ticoff0_bad_format_hook, coff_set_arch_mach_hook, 5625 coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook, 5626 coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook, 5627 coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate, 5628 coff_classify_symbol, coff_compute_section_file_positions, 5629 coff_start_final_link, coff_relocate_section, coff_rtype_to_howto, 5630 coff_adjust_symndx, coff_link_add_one_symbol, 5631 coff_link_output_has_begun, coff_final_link_postscript, 5632 bfd_pe_print_pdata 5633 }; 5634 #endif 5635 5636 #ifdef TICOFF 5637 /* COFF1 differs in section header size. */ 5638 5639 static bfd_coff_backend_data ticoff1_swap_table = 5640 { 5641 coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in, 5642 coff_SWAP_aux_out, coff_SWAP_sym_out, 5643 coff_SWAP_lineno_out, coff_SWAP_reloc_out, 5644 coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out, 5645 coff_SWAP_scnhdr_out, 5646 FILHSZ, AOUTSZ, SCNHSZ_V01, SYMESZ, AUXESZ, RELSZ, LINESZ, FILNMLEN, 5647 #ifdef COFF_LONG_FILENAMES 5648 TRUE, 5649 #else 5650 FALSE, 5651 #endif 5652 COFF_DEFAULT_LONG_SECTION_NAMES, 5653 COFF_DEFAULT_SECTION_ALIGNMENT_POWER, 5654 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS 5655 TRUE, 5656 #else 5657 FALSE, 5658 #endif 5659 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX 5660 4, 5661 #else 5662 2, 5663 #endif 5664 32768, 5665 coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in, 5666 coff_SWAP_reloc_in, ticoff1_bad_format_hook, coff_set_arch_mach_hook, 5667 coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook, 5668 coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook, 5669 coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate, 5670 coff_classify_symbol, coff_compute_section_file_positions, 5671 coff_start_final_link, coff_relocate_section, coff_rtype_to_howto, 5672 coff_adjust_symndx, coff_link_add_one_symbol, 5673 coff_link_output_has_begun, coff_final_link_postscript, 5674 bfd_pe_print_pdata /* huh */ 5675 }; 5676 #endif 5677 5678 #ifdef COFF_WITH_PE_BIGOBJ 5679 /* The UID for bigobj files. */ 5680 5681 static const char header_bigobj_classid[16] = 5682 { 5683 0xC7, 0xA1, 0xBA, 0xD1, 5684 0xEE, 0xBA, 5685 0xa9, 0x4b, 5686 0xAF, 0x20, 5687 0xFA, 0xF6, 0x6A, 0xA4, 0xDC, 0xB8 5688 }; 5689 5690 /* Swap routines. */ 5691 5692 static void 5693 coff_bigobj_swap_filehdr_in (bfd * abfd, void * src, void * dst) 5694 { 5695 struct external_ANON_OBJECT_HEADER_BIGOBJ *filehdr_src = 5696 (struct external_ANON_OBJECT_HEADER_BIGOBJ *) src; 5697 struct internal_filehdr *filehdr_dst = (struct internal_filehdr *) dst; 5698 5699 filehdr_dst->f_magic = H_GET_16 (abfd, filehdr_src->Machine); 5700 filehdr_dst->f_nscns = H_GET_32 (abfd, filehdr_src->NumberOfSections); 5701 filehdr_dst->f_timdat = H_GET_32 (abfd, filehdr_src->TimeDateStamp); 5702 filehdr_dst->f_symptr = 5703 GET_FILEHDR_SYMPTR (abfd, filehdr_src->PointerToSymbolTable); 5704 filehdr_dst->f_nsyms = H_GET_32 (abfd, filehdr_src->NumberOfSymbols); 5705 filehdr_dst->f_opthdr = 0; 5706 filehdr_dst->f_flags = 0; 5707 5708 /* Check other magic numbers. */ 5709 if (H_GET_16 (abfd, filehdr_src->Sig1) != IMAGE_FILE_MACHINE_UNKNOWN 5710 || H_GET_16 (abfd, filehdr_src->Sig2) != 0xffff 5711 || H_GET_16 (abfd, filehdr_src->Version) != 2 5712 || memcmp (filehdr_src->ClassID, header_bigobj_classid, 16) != 0) 5713 filehdr_dst->f_opthdr = 0xffff; 5714 5715 /* Note that CLR metadata are ignored. */ 5716 } 5717 5718 static unsigned int 5719 coff_bigobj_swap_filehdr_out (bfd *abfd, void * in, void * out) 5720 { 5721 struct internal_filehdr *filehdr_in = (struct internal_filehdr *) in; 5722 struct external_ANON_OBJECT_HEADER_BIGOBJ *filehdr_out = 5723 (struct external_ANON_OBJECT_HEADER_BIGOBJ *) out; 5724 5725 memset (filehdr_out, 0, sizeof (*filehdr_out)); 5726 5727 H_PUT_16 (abfd, IMAGE_FILE_MACHINE_UNKNOWN, filehdr_out->Sig1); 5728 H_PUT_16 (abfd, 0xffff, filehdr_out->Sig2); 5729 H_PUT_16 (abfd, 2, filehdr_out->Version); 5730 memcpy (filehdr_out->ClassID, header_bigobj_classid, 16); 5731 H_PUT_16 (abfd, filehdr_in->f_magic, filehdr_out->Machine); 5732 H_PUT_32 (abfd, filehdr_in->f_nscns, filehdr_out->NumberOfSections); 5733 H_PUT_32 (abfd, filehdr_in->f_timdat, filehdr_out->TimeDateStamp); 5734 PUT_FILEHDR_SYMPTR (abfd, filehdr_in->f_symptr, 5735 filehdr_out->PointerToSymbolTable); 5736 H_PUT_32 (abfd, filehdr_in->f_nsyms, filehdr_out->NumberOfSymbols); 5737 5738 return bfd_coff_filhsz (abfd); 5739 } 5740 5741 static void 5742 coff_bigobj_swap_sym_in (bfd * abfd, void * ext1, void * in1) 5743 { 5744 SYMENT_BIGOBJ *ext = (SYMENT_BIGOBJ *) ext1; 5745 struct internal_syment *in = (struct internal_syment *) in1; 5746 5747 if (ext->e.e_name[0] == 0) 5748 { 5749 in->_n._n_n._n_zeroes = 0; 5750 in->_n._n_n._n_offset = H_GET_32 (abfd, ext->e.e.e_offset); 5751 } 5752 else 5753 { 5754 #if SYMNMLEN != E_SYMNMLEN 5755 #error we need to cope with truncating or extending SYMNMLEN 5756 #else 5757 memcpy (in->_n._n_name, ext->e.e_name, SYMNMLEN); 5758 #endif 5759 } 5760 5761 in->n_value = H_GET_32 (abfd, ext->e_value); 5762 in->n_scnum = H_GET_32 (abfd, ext->e_scnum); 5763 in->n_type = H_GET_16 (abfd, ext->e_type); 5764 in->n_sclass = H_GET_8 (abfd, ext->e_sclass); 5765 in->n_numaux = H_GET_8 (abfd, ext->e_numaux); 5766 } 5767 5768 static unsigned int 5769 coff_bigobj_swap_sym_out (bfd * abfd, void * inp, void * extp) 5770 { 5771 struct internal_syment *in = (struct internal_syment *) inp; 5772 SYMENT_BIGOBJ *ext = (SYMENT_BIGOBJ *) extp; 5773 5774 if (in->_n._n_name[0] == 0) 5775 { 5776 H_PUT_32 (abfd, 0, ext->e.e.e_zeroes); 5777 H_PUT_32 (abfd, in->_n._n_n._n_offset, ext->e.e.e_offset); 5778 } 5779 else 5780 { 5781 #if SYMNMLEN != E_SYMNMLEN 5782 #error we need to cope with truncating or extending SYMNMLEN 5783 #else 5784 memcpy (ext->e.e_name, in->_n._n_name, SYMNMLEN); 5785 #endif 5786 } 5787 5788 H_PUT_32 (abfd, in->n_value, ext->e_value); 5789 H_PUT_32 (abfd, in->n_scnum, ext->e_scnum); 5790 5791 H_PUT_16 (abfd, in->n_type, ext->e_type); 5792 H_PUT_8 (abfd, in->n_sclass, ext->e_sclass); 5793 H_PUT_8 (abfd, in->n_numaux, ext->e_numaux); 5794 5795 return SYMESZ_BIGOBJ; 5796 } 5797 5798 static void 5799 coff_bigobj_swap_aux_in (bfd *abfd, 5800 void * ext1, 5801 int type, 5802 int in_class, 5803 int indx, 5804 int numaux, 5805 void * in1) 5806 { 5807 AUXENT_BIGOBJ *ext = (AUXENT_BIGOBJ *) ext1; 5808 union internal_auxent *in = (union internal_auxent *) in1; 5809 5810 switch (in_class) 5811 { 5812 case C_FILE: 5813 if (numaux > 1) 5814 { 5815 if (indx == 0) 5816 memcpy (in->x_file.x_fname, ext->File.Name, 5817 numaux * sizeof (AUXENT_BIGOBJ)); 5818 } 5819 else 5820 memcpy (in->x_file.x_fname, ext->File.Name, sizeof (ext->File.Name)); 5821 break; 5822 5823 case C_STAT: 5824 case C_LEAFSTAT: 5825 case C_HIDDEN: 5826 if (type == T_NULL) 5827 { 5828 in->x_scn.x_scnlen = H_GET_32 (abfd, ext->Section.Length); 5829 in->x_scn.x_nreloc = 5830 H_GET_16 (abfd, ext->Section.NumberOfRelocations); 5831 in->x_scn.x_nlinno = 5832 H_GET_16 (abfd, ext->Section.NumberOfLinenumbers); 5833 in->x_scn.x_checksum = H_GET_32 (abfd, ext->Section.Checksum); 5834 in->x_scn.x_associated = H_GET_16 (abfd, ext->Section.Number) 5835 | (H_GET_16 (abfd, ext->Section.HighNumber) << 16); 5836 in->x_scn.x_comdat = H_GET_8 (abfd, ext->Section.Selection); 5837 return; 5838 } 5839 break; 5840 5841 default: 5842 in->x_sym.x_tagndx.l = H_GET_32 (abfd, ext->Sym.WeakDefaultSymIndex); 5843 /* Characteristics is ignored. */ 5844 break; 5845 } 5846 } 5847 5848 static unsigned int 5849 coff_bigobj_swap_aux_out (bfd * abfd, 5850 void * inp, 5851 int type, 5852 int in_class, 5853 int indx ATTRIBUTE_UNUSED, 5854 int numaux ATTRIBUTE_UNUSED, 5855 void * extp) 5856 { 5857 union internal_auxent * in = (union internal_auxent *) inp; 5858 AUXENT_BIGOBJ *ext = (AUXENT_BIGOBJ *) extp; 5859 5860 memset (ext, 0, AUXESZ); 5861 5862 switch (in_class) 5863 { 5864 case C_FILE: 5865 memcpy (ext->File.Name, in->x_file.x_fname, sizeof (ext->File.Name)); 5866 5867 return AUXESZ; 5868 5869 case C_STAT: 5870 case C_LEAFSTAT: 5871 case C_HIDDEN: 5872 if (type == T_NULL) 5873 { 5874 H_PUT_32 (abfd, in->x_scn.x_scnlen, ext->Section.Length); 5875 H_PUT_16 (abfd, in->x_scn.x_nreloc, 5876 ext->Section.NumberOfRelocations); 5877 H_PUT_16 (abfd, in->x_scn.x_nlinno, 5878 ext->Section.NumberOfLinenumbers); 5879 H_PUT_32 (abfd, in->x_scn.x_checksum, ext->Section.Checksum); 5880 H_PUT_16 (abfd, in->x_scn.x_associated & 0xffff, 5881 ext->Section.Number); 5882 H_PUT_16 (abfd, (in->x_scn.x_associated >> 16), 5883 ext->Section.HighNumber); 5884 H_PUT_8 (abfd, in->x_scn.x_comdat, ext->Section.Selection); 5885 return AUXESZ; 5886 } 5887 break; 5888 } 5889 5890 H_PUT_32 (abfd, in->x_sym.x_tagndx.l, ext->Sym.WeakDefaultSymIndex); 5891 H_PUT_32 (abfd, 1, ext->Sym.WeakSearchType); 5892 5893 return AUXESZ; 5894 } 5895 5896 static bfd_coff_backend_data bigobj_swap_table = 5897 { 5898 coff_bigobj_swap_aux_in, coff_bigobj_swap_sym_in, coff_SWAP_lineno_in, 5899 coff_bigobj_swap_aux_out, coff_bigobj_swap_sym_out, 5900 coff_SWAP_lineno_out, coff_SWAP_reloc_out, 5901 coff_bigobj_swap_filehdr_out, coff_SWAP_aouthdr_out, 5902 coff_SWAP_scnhdr_out, 5903 FILHSZ_BIGOBJ, AOUTSZ, SCNHSZ, SYMESZ_BIGOBJ, AUXESZ_BIGOBJ, 5904 RELSZ, LINESZ, FILNMLEN_BIGOBJ, 5905 TRUE, 5906 COFF_DEFAULT_LONG_SECTION_NAMES, 5907 COFF_DEFAULT_SECTION_ALIGNMENT_POWER, 5908 FALSE, 5909 2, 5910 1U << 31, 5911 coff_bigobj_swap_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in, 5912 coff_SWAP_reloc_in, coff_bad_format_hook, coff_set_arch_mach_hook, 5913 coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook, 5914 coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook, 5915 coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate, 5916 coff_classify_symbol, coff_compute_section_file_positions, 5917 coff_start_final_link, coff_relocate_section, coff_rtype_to_howto, 5918 coff_adjust_symndx, coff_link_add_one_symbol, 5919 coff_link_output_has_begun, coff_final_link_postscript, 5920 bfd_pe_print_pdata /* huh */ 5921 }; 5922 5923 #endif /* COFF_WITH_PE_BIGOBJ */ 5924 5925 #ifndef coff_close_and_cleanup 5926 #define coff_close_and_cleanup _bfd_generic_close_and_cleanup 5927 #endif 5928 5929 #ifndef coff_bfd_free_cached_info 5930 #define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info 5931 #endif 5932 5933 #ifndef coff_get_section_contents 5934 #define coff_get_section_contents _bfd_generic_get_section_contents 5935 #endif 5936 5937 #ifndef coff_bfd_copy_private_symbol_data 5938 #define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data 5939 #endif 5940 5941 #ifndef coff_bfd_copy_private_header_data 5942 #define coff_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data 5943 #endif 5944 5945 #ifndef coff_bfd_copy_private_section_data 5946 #define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data 5947 #endif 5948 5949 #ifndef coff_bfd_copy_private_bfd_data 5950 #define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data 5951 #endif 5952 5953 #ifndef coff_bfd_merge_private_bfd_data 5954 #define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data 5955 #endif 5956 5957 #ifndef coff_bfd_set_private_flags 5958 #define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags 5959 #endif 5960 5961 #ifndef coff_bfd_print_private_bfd_data 5962 #define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data 5963 #endif 5964 5965 #ifndef coff_bfd_is_local_label_name 5966 #define coff_bfd_is_local_label_name _bfd_coff_is_local_label_name 5967 #endif 5968 5969 #ifndef coff_bfd_is_target_special_symbol 5970 #define coff_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false) 5971 #endif 5972 5973 #ifndef coff_read_minisymbols 5974 #define coff_read_minisymbols _bfd_generic_read_minisymbols 5975 #endif 5976 5977 #ifndef coff_minisymbol_to_symbol 5978 #define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol 5979 #endif 5980 5981 /* The reloc lookup routine must be supplied by each individual COFF 5982 backend. */ 5983 #ifndef coff_bfd_reloc_type_lookup 5984 #define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup 5985 #endif 5986 #ifndef coff_bfd_reloc_name_lookup 5987 #define coff_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup 5988 #endif 5989 5990 #ifndef coff_bfd_get_relocated_section_contents 5991 #define coff_bfd_get_relocated_section_contents \ 5992 bfd_generic_get_relocated_section_contents 5993 #endif 5994 5995 #ifndef coff_bfd_relax_section 5996 #define coff_bfd_relax_section bfd_generic_relax_section 5997 #endif 5998 5999 #ifndef coff_bfd_gc_sections 6000 #define coff_bfd_gc_sections bfd_coff_gc_sections 6001 #endif 6002 6003 #ifndef coff_bfd_lookup_section_flags 6004 #define coff_bfd_lookup_section_flags bfd_generic_lookup_section_flags 6005 #endif 6006 6007 #ifndef coff_bfd_merge_sections 6008 #define coff_bfd_merge_sections bfd_generic_merge_sections 6009 #endif 6010 6011 #ifndef coff_bfd_is_group_section 6012 #define coff_bfd_is_group_section bfd_generic_is_group_section 6013 #endif 6014 6015 #ifndef coff_bfd_discard_group 6016 #define coff_bfd_discard_group bfd_generic_discard_group 6017 #endif 6018 6019 #ifndef coff_section_already_linked 6020 #define coff_section_already_linked \ 6021 _bfd_coff_section_already_linked 6022 #endif 6023 6024 #ifndef coff_bfd_define_common_symbol 6025 #define coff_bfd_define_common_symbol bfd_generic_define_common_symbol 6026 #endif 6027 6028 #define CREATE_BIG_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \ 6029 const bfd_target VAR = \ 6030 { \ 6031 NAME , \ 6032 bfd_target_coff_flavour, \ 6033 BFD_ENDIAN_BIG, /* Data byte order is big. */ \ 6034 BFD_ENDIAN_BIG, /* Header byte order is big. */ \ 6035 /* object flags */ \ 6036 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \ 6037 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \ 6038 /* section flags */ \ 6039 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\ 6040 UNDER, /* Leading symbol underscore. */ \ 6041 '/', /* AR_pad_char. */ \ 6042 15, /* AR_max_namelen. */ \ 6043 0, /* match priority. */ \ 6044 \ 6045 /* Data conversion functions. */ \ 6046 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \ 6047 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \ 6048 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \ 6049 \ 6050 /* Header conversion functions. */ \ 6051 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \ 6052 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \ 6053 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \ 6054 \ 6055 /* bfd_check_format. */ \ 6056 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \ 6057 _bfd_dummy_target }, \ 6058 /* bfd_set_format. */ \ 6059 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \ 6060 /* bfd_write_contents. */ \ 6061 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \ 6062 bfd_false }, \ 6063 \ 6064 BFD_JUMP_TABLE_GENERIC (coff), \ 6065 BFD_JUMP_TABLE_COPY (coff), \ 6066 BFD_JUMP_TABLE_CORE (_bfd_nocore), \ 6067 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \ 6068 BFD_JUMP_TABLE_SYMBOLS (coff), \ 6069 BFD_JUMP_TABLE_RELOCS (coff), \ 6070 BFD_JUMP_TABLE_WRITE (coff), \ 6071 BFD_JUMP_TABLE_LINK (coff), \ 6072 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \ 6073 \ 6074 ALTERNATIVE, \ 6075 \ 6076 SWAP_TABLE \ 6077 }; 6078 6079 #define CREATE_BIGHDR_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \ 6080 const bfd_target VAR = \ 6081 { \ 6082 NAME , \ 6083 bfd_target_coff_flavour, \ 6084 BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \ 6085 BFD_ENDIAN_BIG, /* Header byte order is big. */ \ 6086 /* object flags */ \ 6087 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \ 6088 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \ 6089 /* section flags */ \ 6090 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\ 6091 UNDER, /* Leading symbol underscore. */ \ 6092 '/', /* AR_pad_char. */ \ 6093 15, /* AR_max_namelen. */ \ 6094 0, /* match priority. */ \ 6095 \ 6096 /* Data conversion functions. */ \ 6097 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \ 6098 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \ 6099 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \ 6100 \ 6101 /* Header conversion functions. */ \ 6102 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \ 6103 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \ 6104 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \ 6105 \ 6106 /* bfd_check_format. */ \ 6107 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \ 6108 _bfd_dummy_target }, \ 6109 /* bfd_set_format. */ \ 6110 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \ 6111 /* bfd_write_contents. */ \ 6112 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \ 6113 bfd_false }, \ 6114 \ 6115 BFD_JUMP_TABLE_GENERIC (coff), \ 6116 BFD_JUMP_TABLE_COPY (coff), \ 6117 BFD_JUMP_TABLE_CORE (_bfd_nocore), \ 6118 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \ 6119 BFD_JUMP_TABLE_SYMBOLS (coff), \ 6120 BFD_JUMP_TABLE_RELOCS (coff), \ 6121 BFD_JUMP_TABLE_WRITE (coff), \ 6122 BFD_JUMP_TABLE_LINK (coff), \ 6123 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \ 6124 \ 6125 ALTERNATIVE, \ 6126 \ 6127 SWAP_TABLE \ 6128 }; 6129 6130 #define CREATE_LITTLE_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \ 6131 const bfd_target VAR = \ 6132 { \ 6133 NAME , \ 6134 bfd_target_coff_flavour, \ 6135 BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \ 6136 BFD_ENDIAN_LITTLE, /* Header byte order is little. */ \ 6137 /* object flags */ \ 6138 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \ 6139 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \ 6140 /* section flags */ \ 6141 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\ 6142 UNDER, /* Leading symbol underscore. */ \ 6143 '/', /* AR_pad_char. */ \ 6144 15, /* AR_max_namelen. */ \ 6145 0, /* match priority. */ \ 6146 \ 6147 /* Data conversion functions. */ \ 6148 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \ 6149 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \ 6150 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \ 6151 /* Header conversion functions. */ \ 6152 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \ 6153 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \ 6154 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \ 6155 /* bfd_check_format. */ \ 6156 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \ 6157 _bfd_dummy_target }, \ 6158 /* bfd_set_format. */ \ 6159 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \ 6160 /* bfd_write_contents. */ \ 6161 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \ 6162 bfd_false }, \ 6163 \ 6164 BFD_JUMP_TABLE_GENERIC (coff), \ 6165 BFD_JUMP_TABLE_COPY (coff), \ 6166 BFD_JUMP_TABLE_CORE (_bfd_nocore), \ 6167 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \ 6168 BFD_JUMP_TABLE_SYMBOLS (coff), \ 6169 BFD_JUMP_TABLE_RELOCS (coff), \ 6170 BFD_JUMP_TABLE_WRITE (coff), \ 6171 BFD_JUMP_TABLE_LINK (coff), \ 6172 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \ 6173 \ 6174 ALTERNATIVE, \ 6175 \ 6176 SWAP_TABLE \ 6177 }; 6178