| 1 | /* Support for the generic parts of most COFF variants, for BFD. |
| 2 | Copyright 1990, 1991, 1992 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 2 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 20 | |
| 21 | /* |
| 22 | Most of this hacked by Steve Chamberlain, |
| 23 | sac@cygnus.com |
| 24 | */ |
| 25 | /* |
| 26 | |
| 27 | SECTION |
| 28 | coff backends |
| 29 | |
| 30 | BFD supports a number of different flavours of coff format. |
| 31 | The major difference between formats are the sizes and |
| 32 | alignments of fields in structures on disk, and the occasional |
| 33 | extra field. |
| 34 | |
| 35 | Coff in all its varieties is implimented with a few common |
| 36 | files and a number of implementation specific files. For |
| 37 | example, The 88k bcs coff format is implemented in the file |
| 38 | @code{coff-m88k.c}. This file @code{#include}s |
| 39 | @code{coff-m88k.h} which defines the external structure of the |
| 40 | coff format for the 88k, and @code{internalcoff.h} which |
| 41 | defines the internal structure. @code{coff-m88k.c} also |
| 42 | defines pthe relocations used by the 88k format |
| 43 | @xref{Relocations}. Then the major portion of coff code is |
| 44 | included (@code{coffcode.h}) which defines the methods used to |
| 45 | act upon the types defined in @code{coff-m88k.h} and |
| 46 | @code{internalcoff.h}. |
| 47 | |
| 48 | |
| 49 | The Intel i960 processor version of coff is implemented in |
| 50 | @code{coff-i960.c}. This file has the same structure as |
| 51 | @code{coff-m88k.c}, except that it includes @code{coff-i960.h} |
| 52 | rather than @code{coff-m88k.h}. |
| 53 | |
| 54 | SUBSECTION |
| 55 | Porting To A New Version of Coff |
| 56 | |
| 57 | The recommended method is to select from the existing |
| 58 | implimentations the version of coff which is most like the one |
| 59 | you want to use, for our purposes, we'll say that i386 coff is |
| 60 | the one you select, and that your coff flavour is called foo. |
| 61 | Copy the @code{i386coff.c} to @code{foocoff.c}, copy |
| 62 | @code{../include/i386coff.h} to @code{../include/foocoff.h} |
| 63 | and add the lines to @code{targets.c} and @code{Makefile.in} |
| 64 | so that your new back end is used. Alter the shapes of the |
| 65 | structures in @code{../include/foocoff.h} so that they match |
| 66 | what you need. You will probably also have to add |
| 67 | @code{#ifdef}s to the code in @code{internalcoff.h} and |
| 68 | @code{coffcode.h} if your version of coff is too wild. |
| 69 | |
| 70 | You can verify that your new BFD backend works quite simply by |
| 71 | building @code{objdump} from the @code{binutils} directory, |
| 72 | and making sure that its version of what's going on at your |
| 73 | host systems idea (assuming it has the pretty standard coff |
| 74 | dump utility (usually called @code{att-dump} or just |
| 75 | @code{dump})) are the same. Then clean up your code, and send |
| 76 | what you've done to Cygnus. Then your stuff will be in the |
| 77 | next release, and you won't have to keep integrating it. |
| 78 | |
| 79 | SUBSECTION |
| 80 | How The Coff Backend Works |
| 81 | |
| 82 | SUBSUBSECTION |
| 83 | Bit Twiddling |
| 84 | |
| 85 | Each flavour of coff supported in BFD has its own header file |
| 86 | descibing the external layout of the structures. There is also |
| 87 | an internal description of the coff layout (in |
| 88 | @code{internalcoff.h}) file (@code{}). A major function of the |
| 89 | coff backend is swapping the bytes and twiddling the bits to |
| 90 | translate the external form of the structures into the normal |
| 91 | internal form. This is all performed in the |
| 92 | @code{bfd_swap}_@i{thing}_@i{direction} routines. Some |
| 93 | elements are different sizes between different versions of |
| 94 | coff, it is the duty of the coff version specific include file |
| 95 | to override the definitions of various packing routines in |
| 96 | @code{coffcode.h}. Eg the size of line number entry in coff is |
| 97 | sometimes 16 bits, and sometimes 32 bits. @code{#define}ing |
| 98 | @code{PUT_LNSZ_LNNO} and @code{GET_LNSZ_LNNO} will select the |
| 99 | correct one. No doubt, some day someone will find a version of |
| 100 | coff which has a varying field size not catered for at the |
| 101 | moment. To port BFD, that person will have to add more @code{#defines}. |
| 102 | Three of the bit twiddling routines are exported to |
| 103 | @code{gdb}; @code{coff_swap_aux_in}, @code{coff_swap_sym_in} |
| 104 | and @code{coff_swap_linno_in}. @code{GDB} reads the symbol |
| 105 | table on its own, but uses BFD to fix things up. More of the |
| 106 | bit twiddlers are exported for @code{gas}; |
| 107 | @code{coff_swap_aux_out}, @code{coff_swap_sym_out}, |
| 108 | @code{coff_swap_lineno_out}, @code{coff_swap_reloc_out}, |
| 109 | @code{coff_swap_filehdr_out}, @code{coff_swap_aouthdr_out}, |
| 110 | @code{coff_swap_scnhdr_out}. @code{Gas} currently keeps track |
| 111 | of all the symbol table and reloc drudgery itself, thereby |
| 112 | saving the internal BFD overhead, but uses BFD to swap things |
| 113 | on the way out, making cross ports much safer. This also |
| 114 | allows BFD (and thus the linker) to use the same header files |
| 115 | as @code{gas}, which makes one avenue to disaster disappear. |
| 116 | |
| 117 | SUBSUBSECTION |
| 118 | Symbol Reading |
| 119 | |
| 120 | The simple canonical form for symbols used by BFD is not rich |
| 121 | enough to keep all the information available in a coff symbol |
| 122 | table. The back end gets around this by keeping the original |
| 123 | symbol table around, "behind the scenes". |
| 124 | |
| 125 | When a symbol table is requested (through a call to |
| 126 | @code{bfd_canonicalize_symtab}, a request gets through to |
| 127 | @code{get_normalized_symtab}. This reads the symbol table from |
| 128 | the coff file and swaps all the structures inside into the |
| 129 | internal form. It also fixes up all the pointers in the table |
| 130 | (represented in the file by offsets from the first symbol in |
| 131 | the table) into physical pointers to elements in the new |
| 132 | internal table. This involves some work since the meanings of |
| 133 | fields changes depending upon context; a field that is a |
| 134 | pointer to another structure in the symbol table at one moment |
| 135 | may be the size in bytes of a structure in the next. Another |
| 136 | pass is made over the table. All symbols which mark file names |
| 137 | (<<C_FILE>> symbols) are modified so that the internal |
| 138 | string points to the value in the auxent (the real filename) |
| 139 | rather than the normal text associated with the symbol |
| 140 | (@code{".file"}). |
| 141 | |
| 142 | At this time the symbol names are moved around. Coff stores |
| 143 | all symbols less than nine characters long physically |
| 144 | within the symbol table, longer strings are kept at the end of |
| 145 | the file in the string table. This pass moves all strings |
| 146 | into memory, and replaces them with pointers to the strings. |
| 147 | |
| 148 | |
| 149 | The symbol table is massaged once again, this time to create |
| 150 | the canonical table used by the BFD application. Each symbol |
| 151 | is inspected in turn, and a decision made (using the |
| 152 | @code{sclass} field) about the various flags to set in the |
| 153 | @code{asymbol} @xref{Symbols}. The generated canonical table |
| 154 | shares strings with the hidden internal symbol table. |
| 155 | |
| 156 | Any linenumbers are read from the coff file too, and attached |
| 157 | to the symbols which own the functions the linenumbers belong to. |
| 158 | |
| 159 | SUBSUBSECTION |
| 160 | Symbol Writing |
| 161 | |
| 162 | Writing a symbol to a coff file which didn't come from a coff |
| 163 | file will lose any debugging information. The @code{asymbol} |
| 164 | structure remembers the BFD from which was born, and on output |
| 165 | the back end makes sure that the same destination target as |
| 166 | source target is present. |
| 167 | |
| 168 | When the symbols have come from a coff file then all the |
| 169 | debugging information is preserved. |
| 170 | |
| 171 | Symbol tables are provided for writing to the back end in a |
| 172 | vector of pointers to pointers. This allows applications like |
| 173 | the linker to accumulate and output large symbol tables |
| 174 | without having to do too much byte copying. |
| 175 | |
| 176 | This function runs through the provided symbol table and |
| 177 | patches each symbol marked as a file place holder |
| 178 | (@code{C_FILE}) to point to the next file place holder in the |
| 179 | list. It also marks each @code{offset} field in the list with |
| 180 | the offset from the first symbol of the current symbol. |
| 181 | |
| 182 | Another function of this procedure is to turn the canonical |
| 183 | value form of BFD into the form used by coff. Internally, BFD |
| 184 | expects symbol values to be offsets from a section base; so a |
| 185 | symbol physically at 0x120, but in a section starting at |
| 186 | 0x100, would have the value 0x20. Coff expects symbols to |
| 187 | contain their final value, so symbols have their values |
| 188 | changed at this point to reflect their sum with their owning |
| 189 | section. Note that this transformation uses the |
| 190 | <<output_section>> field of the @code{asymbol}'s |
| 191 | @code{asection} @xref{Sections}. |
| 192 | |
| 193 | o coff_mangle_symbols |
| 194 | |
| 195 | This routine runs though the provided symbol table and uses |
| 196 | the offsets generated by the previous pass and the pointers |
| 197 | generated when the symbol table was read in to create the |
| 198 | structured hierachy required by coff. It changes each pointer |
| 199 | to a symbol to an index into the symbol table of the symbol |
| 200 | being referenced. |
| 201 | |
| 202 | o coff_write_symbols |
| 203 | |
| 204 | This routine runs through the symbol table and patches up the |
| 205 | symbols from their internal form into the coff way, calls the |
| 206 | bit twiddlers and writes out the tabel to the file. |
| 207 | |
| 208 | */ |
| 209 | |
| 210 | /* |
| 211 | INTERNAL_DEFINITION |
| 212 | coff_symbol_type |
| 213 | |
| 214 | DESCRIPTION |
| 215 | The hidden information for an asymbol is described in a |
| 216 | coff_ptr_struct, which is typedefed to a combined_entry_type |
| 217 | |
| 218 | CODE_FRAGMENT |
| 219 | . |
| 220 | .typedef struct coff_ptr_struct |
| 221 | .{ |
| 222 | . |
| 223 | . {* Remembers the offset from the first symbol in the file for |
| 224 | . this symbol. Generated by coff_renumber_symbols. *} |
| 225 | .unsigned int offset; |
| 226 | . |
| 227 | . {* Should the tag field of this symbol be renumbered. |
| 228 | . Created by coff_pointerize_aux. *} |
| 229 | .char fix_tag; |
| 230 | . |
| 231 | . {* Should the endidx field of this symbol be renumbered. |
| 232 | . Created by coff_pointerize_aux. *} |
| 233 | .char fix_end; |
| 234 | . |
| 235 | . {* The container for the symbol structure as read and translated |
| 236 | . from the file. *} |
| 237 | . |
| 238 | .union { |
| 239 | . union internal_auxent auxent; |
| 240 | . struct internal_syment syment; |
| 241 | . } u; |
| 242 | .} combined_entry_type; |
| 243 | . |
| 244 | . |
| 245 | .{* Each canonical asymbol really looks like this: *} |
| 246 | . |
| 247 | .typedef struct coff_symbol_struct |
| 248 | .{ |
| 249 | . {* The actual symbol which the rest of BFD works with *} |
| 250 | .asymbol symbol; |
| 251 | . |
| 252 | . {* A pointer to the hidden information for this symbol *} |
| 253 | .combined_entry_type *native; |
| 254 | . |
| 255 | . {* A pointer to the linenumber information for this symbol *} |
| 256 | .struct lineno_cache_entry *lineno; |
| 257 | . |
| 258 | . {* Have the line numbers been relocated yet ? *} |
| 259 | .boolean done_lineno; |
| 260 | .} coff_symbol_type; |
| 261 | |
| 262 | |
| 263 | */ |
| 264 | |
| 265 | #include "seclet.h" |
| 266 | extern bfd_error_vector_type bfd_error_vector; |
| 267 | |
| 268 | |
| 269 | |
| 270 | |
| 271 | #define PUTWORD bfd_h_put_32 |
| 272 | #define PUTHALF bfd_h_put_16 |
| 273 | #define PUTBYTE bfd_h_put_8 |
| 274 | |
| 275 | #ifndef GET_FCN_LNNOPTR |
| 276 | #define GET_FCN_LNNOPTR(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_lnnoptr) |
| 277 | #endif |
| 278 | |
| 279 | #ifndef GET_FCN_ENDNDX |
| 280 | #define GET_FCN_ENDNDX(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_endndx) |
| 281 | #endif |
| 282 | |
| 283 | #ifndef PUT_FCN_LNNOPTR |
| 284 | #define PUT_FCN_LNNOPTR(abfd, in, ext) PUTWORD(abfd, in, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_lnnoptr) |
| 285 | #endif |
| 286 | #ifndef PUT_FCN_ENDNDX |
| 287 | #define PUT_FCN_ENDNDX(abfd, in, ext) PUTWORD(abfd, in, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_endndx) |
| 288 | #endif |
| 289 | #ifndef GET_LNSZ_LNNO |
| 290 | #define GET_LNSZ_LNNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_lnno) |
| 291 | #endif |
| 292 | #ifndef GET_LNSZ_SIZE |
| 293 | #define GET_LNSZ_SIZE(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_size) |
| 294 | #endif |
| 295 | #ifndef PUT_LNSZ_LNNO |
| 296 | #define PUT_LNSZ_LNNO(abfd, in, ext) bfd_h_put_16(abfd, in, (bfd_byte *)ext->x_sym.x_misc.x_lnsz.x_lnno) |
| 297 | #endif |
| 298 | #ifndef PUT_LNSZ_SIZE |
| 299 | #define PUT_LNSZ_SIZE(abfd, in, ext) bfd_h_put_16(abfd, in, (bfd_byte*) ext->x_sym.x_misc.x_lnsz.x_size) |
| 300 | #endif |
| 301 | #ifndef GET_SCN_SCNLEN |
| 302 | #define GET_SCN_SCNLEN(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_scn.x_scnlen) |
| 303 | #endif |
| 304 | #ifndef GET_SCN_NRELOC |
| 305 | #define GET_SCN_NRELOC(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *)ext->x_scn.x_nreloc) |
| 306 | #endif |
| 307 | #ifndef GET_SCN_NLINNO |
| 308 | #define GET_SCN_NLINNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *)ext->x_scn.x_nlinno) |
| 309 | #endif |
| 310 | #ifndef PUT_SCN_SCNLEN |
| 311 | #define PUT_SCN_SCNLEN(abfd,in, ext) bfd_h_put_32(abfd, in, (bfd_byte *) ext->x_scn.x_scnlen) |
| 312 | #endif |
| 313 | #ifndef PUT_SCN_NRELOC |
| 314 | #define PUT_SCN_NRELOC(abfd,in, ext) bfd_h_put_16(abfd, in, (bfd_byte *)ext->x_scn.x_nreloc) |
| 315 | #endif |
| 316 | #ifndef PUT_SCN_NLINNO |
| 317 | #define PUT_SCN_NLINNO(abfd,in, ext) bfd_h_put_16(abfd,in, (bfd_byte *) ext->x_scn.x_nlinno) |
| 318 | #endif |
| 319 | #ifndef GET_LINENO_LNNO |
| 320 | #define GET_LINENO_LNNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) (ext->l_lnno)); |
| 321 | #endif |
| 322 | #ifndef PUT_LINENO_LNNO |
| 323 | #define PUT_LINENO_LNNO(abfd,val, ext) bfd_h_put_16(abfd,val, (bfd_byte *) (ext->l_lnno)); |
| 324 | #endif |
| 325 | |
| 326 | \f |
| 327 | /* void warning(); */ |
| 328 | |
| 329 | /* |
| 330 | * Return a word with STYP_* (scnhdr.s_flags) flags set to represent the |
| 331 | * incoming SEC_* flags. The inverse of this function is styp_to_sec_flags(). |
| 332 | * NOTE: If you add to/change this routine, you should mirror the changes |
| 333 | * in styp_to_sec_flags(). |
| 334 | */ |
| 335 | static long |
| 336 | DEFUN(sec_to_styp_flags, (sec_name, sec_flags), |
| 337 | CONST char * sec_name AND |
| 338 | flagword sec_flags) |
| 339 | { |
| 340 | long styp_flags = 0; |
| 341 | |
| 342 | if (!strcmp(sec_name, _TEXT)) { |
| 343 | return((long)STYP_TEXT); |
| 344 | } else if (!strcmp(sec_name, _DATA)) { |
| 345 | return((long)STYP_DATA); |
| 346 | #ifdef TWO_DATA_SECS |
| 347 | } else if (!strcmp(sec_name, ".data2")) { |
| 348 | return((long)STYP_DATA); |
| 349 | #endif /* TWO_DATA_SECS */ |
| 350 | } else if (!strcmp(sec_name, _BSS)) { |
| 351 | return((long)STYP_BSS); |
| 352 | #ifdef _COMMENT |
| 353 | } else if (!strcmp(sec_name, _COMMENT)) { |
| 354 | return((long)STYP_INFO); |
| 355 | #endif /* _COMMENT */ |
| 356 | #ifdef _LIB |
| 357 | } else if (!strcmp(sec_name, _LIB)) { |
| 358 | return((long)STYP_LIB); |
| 359 | #endif /* _LIB */ |
| 360 | } |
| 361 | |
| 362 | /* Try and figure out what it should be */ |
| 363 | if (sec_flags & SEC_CODE) styp_flags = STYP_TEXT; |
| 364 | if (sec_flags & SEC_DATA) styp_flags = STYP_DATA; |
| 365 | else if (sec_flags & SEC_READONLY) |
| 366 | #ifdef STYP_LIT /* 29k readonly text/data section */ |
| 367 | styp_flags = STYP_LIT; |
| 368 | #else |
| 369 | styp_flags = STYP_TEXT; |
| 370 | #endif /* STYP_LIT */ |
| 371 | else if (sec_flags & SEC_LOAD) styp_flags = STYP_TEXT; |
| 372 | |
| 373 | if (styp_flags == 0) styp_flags = STYP_BSS; |
| 374 | |
| 375 | #ifdef STYP_NOLOAD |
| 376 | if (sec_flags & SEC_NEVER_LOAD) |
| 377 | styp_flags |= STYP_NOLOAD; |
| 378 | #endif |
| 379 | |
| 380 | return(styp_flags); |
| 381 | } |
| 382 | /* |
| 383 | * Return a word with SEC_* flags set to represent the incoming |
| 384 | * STYP_* flags (from scnhdr.s_flags). The inverse of this |
| 385 | * function is sec_to_styp_flags(). |
| 386 | * NOTE: If you add to/change this routine, you should mirror the changes |
| 387 | * in sec_to_styp_flags(). |
| 388 | */ |
| 389 | static flagword |
| 390 | DEFUN(styp_to_sec_flags, (styp_flags), |
| 391 | long styp_flags) |
| 392 | { |
| 393 | flagword sec_flags=0; |
| 394 | |
| 395 | #ifdef STYP_NOLOAD |
| 396 | if (styp_flags & STYP_NOLOAD) |
| 397 | { |
| 398 | sec_flags |= SEC_NEVER_LOAD; |
| 399 | } |
| 400 | #endif /* STYP_NOLOAD */ |
| 401 | |
| 402 | if ((styp_flags & STYP_TEXT) || (styp_flags & STYP_DATA)) |
| 403 | { |
| 404 | sec_flags |= SEC_LOAD | SEC_ALLOC; |
| 405 | } |
| 406 | else if (styp_flags & STYP_BSS) |
| 407 | { |
| 408 | sec_flags |= SEC_ALLOC; |
| 409 | } |
| 410 | else if (styp_flags & STYP_INFO) |
| 411 | { |
| 412 | sec_flags |= SEC_NEVER_LOAD; |
| 413 | } |
| 414 | else |
| 415 | { |
| 416 | sec_flags |= SEC_ALLOC | SEC_LOAD; |
| 417 | } |
| 418 | |
| 419 | #ifdef STYP_LIT /* A29k readonly text/data section type */ |
| 420 | if ((styp_flags & STYP_LIT) == STYP_LIT) |
| 421 | { |
| 422 | sec_flags = (SEC_LOAD | SEC_ALLOC | SEC_READONLY); |
| 423 | } |
| 424 | #endif /* STYP_LIT */ |
| 425 | #ifdef STYP_OTHER_LOAD /* Other loaded sections */ |
| 426 | if (styp_flags & STYP_OTHER_LOAD) |
| 427 | { |
| 428 | sec_flags = (SEC_LOAD | SEC_ALLOC); |
| 429 | } |
| 430 | #endif /* STYP_SDATA */ |
| 431 | |
| 432 | return(sec_flags); |
| 433 | } |
| 434 | |
| 435 | #define get_index(symbol) ((int) (symbol)->udata) |
| 436 | #define set_index(symbol, idx) ((symbol)->udata =(PTR) (idx)) |
| 437 | |
| 438 | /* ********************************************************************** |
| 439 | Here are all the routines for swapping the structures seen in the |
| 440 | outside world into the internal forms. |
| 441 | */ |
| 442 | |
| 443 | |
| 444 | static void |
| 445 | DEFUN(bfd_swap_reloc_in,(abfd, reloc_src, reloc_dst), |
| 446 | bfd *abfd AND |
| 447 | RELOC *reloc_src AND |
| 448 | struct internal_reloc *reloc_dst) |
| 449 | { |
| 450 | reloc_dst->r_vaddr = bfd_h_get_32(abfd, (bfd_byte *)reloc_src->r_vaddr); |
| 451 | reloc_dst->r_symndx = bfd_h_get_32(abfd, (bfd_byte *) reloc_src->r_symndx); |
| 452 | |
| 453 | #ifdef RS6000COFF_C |
| 454 | reloc_dst->r_type = bfd_h_get_8(abfd, reloc_src->r_type); |
| 455 | reloc_dst->r_size = bfd_h_get_8(abfd, reloc_src->r_size); |
| 456 | #else |
| 457 | reloc_dst->r_type = bfd_h_get_16(abfd, (bfd_byte *) reloc_src->r_type); |
| 458 | #endif |
| 459 | |
| 460 | #ifdef SWAP_IN_RELOC_OFFSET |
| 461 | reloc_dst->r_offset = SWAP_IN_RELOC_OFFSET(abfd, |
| 462 | (bfd_byte *) reloc_src->r_offset); |
| 463 | #endif |
| 464 | } |
| 465 | |
| 466 | |
| 467 | static unsigned int |
| 468 | DEFUN(coff_swap_reloc_out,(abfd, src, dst), |
| 469 | bfd *abfd AND |
| 470 | PTR src AND |
| 471 | PTR dst) |
| 472 | { |
| 473 | struct internal_reloc *reloc_src = (struct internal_reloc *)src; |
| 474 | struct external_reloc *reloc_dst = (struct external_reloc *)dst; |
| 475 | bfd_h_put_32(abfd, reloc_src->r_vaddr, (bfd_byte *) reloc_dst->r_vaddr); |
| 476 | bfd_h_put_32(abfd, reloc_src->r_symndx, (bfd_byte *) reloc_dst->r_symndx); |
| 477 | bfd_h_put_16(abfd, reloc_src->r_type, (bfd_byte *) |
| 478 | reloc_dst->r_type); |
| 479 | |
| 480 | #ifdef SWAP_OUT_RELOC_OFFSET |
| 481 | SWAP_OUT_RELOC_OFFSET(abfd, |
| 482 | reloc_src->r_offset, |
| 483 | (bfd_byte *) reloc_dst->r_offset); |
| 484 | #endif |
| 485 | #ifdef SWAP_OUT_RELOC_EXTRA |
| 486 | SWAP_OUT_RELOC_EXTRA(abfd,reloc_src, reloc_dst); |
| 487 | #endif |
| 488 | |
| 489 | return sizeof(struct external_reloc); |
| 490 | } |
| 491 | |
| 492 | static void |
| 493 | DEFUN(bfd_swap_filehdr_in,(abfd, filehdr_src, filehdr_dst), |
| 494 | bfd *abfd AND |
| 495 | FILHDR *filehdr_src AND |
| 496 | struct internal_filehdr *filehdr_dst) |
| 497 | { |
| 498 | filehdr_dst->f_magic = bfd_h_get_16(abfd, (bfd_byte *) filehdr_src->f_magic); |
| 499 | filehdr_dst->f_nscns = bfd_h_get_16(abfd, (bfd_byte *)filehdr_src-> f_nscns); |
| 500 | filehdr_dst->f_timdat = bfd_h_get_32(abfd, (bfd_byte *)filehdr_src-> f_timdat); |
| 501 | filehdr_dst->f_symptr = bfd_h_get_32(abfd, (bfd_byte *)filehdr_src-> f_symptr); |
| 502 | filehdr_dst->f_nsyms = bfd_h_get_32(abfd, (bfd_byte *)filehdr_src-> f_nsyms); |
| 503 | filehdr_dst->f_opthdr = bfd_h_get_16(abfd, (bfd_byte *)filehdr_src-> f_opthdr); |
| 504 | filehdr_dst->f_flags = bfd_h_get_16(abfd, (bfd_byte *)filehdr_src-> f_flags); |
| 505 | } |
| 506 | |
| 507 | static unsigned int |
| 508 | DEFUN(coff_swap_filehdr_out,(abfd, in, out), |
| 509 | bfd *abfd AND |
| 510 | PTR in AND |
| 511 | PTR out) |
| 512 | { |
| 513 | struct internal_filehdr *filehdr_in = (struct internal_filehdr *)in; |
| 514 | FILHDR *filehdr_out = (FILHDR *)out; |
| 515 | bfd_h_put_16(abfd, filehdr_in->f_magic, (bfd_byte *) filehdr_out->f_magic); |
| 516 | bfd_h_put_16(abfd, filehdr_in->f_nscns, (bfd_byte *) filehdr_out->f_nscns); |
| 517 | bfd_h_put_32(abfd, filehdr_in->f_timdat, (bfd_byte *) filehdr_out->f_timdat); |
| 518 | bfd_h_put_32(abfd, filehdr_in->f_symptr, (bfd_byte *) filehdr_out->f_symptr); |
| 519 | bfd_h_put_32(abfd, filehdr_in->f_nsyms, (bfd_byte *) filehdr_out->f_nsyms); |
| 520 | bfd_h_put_16(abfd, filehdr_in->f_opthdr, (bfd_byte *) filehdr_out->f_opthdr); |
| 521 | bfd_h_put_16(abfd, filehdr_in->f_flags, (bfd_byte *) filehdr_out->f_flags); |
| 522 | return sizeof(FILHDR); |
| 523 | } |
| 524 | |
| 525 | |
| 526 | #ifndef NO_COFF_SYMBOLS |
| 527 | |
| 528 | static void |
| 529 | DEFUN(coff_swap_sym_in,(abfd, ext1, in1), |
| 530 | bfd *abfd AND |
| 531 | PTR ext1 AND |
| 532 | PTR in1) |
| 533 | { |
| 534 | SYMENT *ext = (SYMENT *)ext1; |
| 535 | struct internal_syment *in = (struct internal_syment *)in1; |
| 536 | |
| 537 | if( ext->e.e_name[0] == 0) { |
| 538 | in->_n._n_n._n_zeroes = 0; |
| 539 | in->_n._n_n._n_offset = bfd_h_get_32(abfd, (bfd_byte *) ext->e.e.e_offset); |
| 540 | } |
| 541 | else { |
| 542 | #if SYMNMLEN != E_SYMNMLEN |
| 543 | -> Error, we need to cope with truncating or extending SYMNMLEN!; |
| 544 | #else |
| 545 | memcpy(in->_n._n_name, ext->e.e_name, SYMNMLEN); |
| 546 | #endif |
| 547 | } |
| 548 | in->n_value = bfd_h_get_32(abfd, (bfd_byte *) ext->e_value); |
| 549 | in->n_scnum = bfd_h_get_16(abfd, (bfd_byte *) ext->e_scnum); |
| 550 | if (sizeof(ext->e_type) == 2){ |
| 551 | in->n_type = bfd_h_get_16(abfd, (bfd_byte *) ext->e_type); |
| 552 | } |
| 553 | else { |
| 554 | in->n_type = bfd_h_get_32(abfd, (bfd_byte *) ext->e_type); |
| 555 | } |
| 556 | in->n_sclass = bfd_h_get_8(abfd, ext->e_sclass); |
| 557 | in->n_numaux = bfd_h_get_8(abfd, ext->e_numaux); |
| 558 | } |
| 559 | |
| 560 | static unsigned int |
| 561 | DEFUN(coff_swap_sym_out,(abfd, inp, extp), |
| 562 | bfd *abfd AND |
| 563 | PTR inp AND |
| 564 | PTR extp) |
| 565 | { |
| 566 | struct internal_syment *in = (struct internal_syment *)inp; |
| 567 | SYMENT *ext =(SYMENT *)extp; |
| 568 | if(in->_n._n_name[0] == 0) { |
| 569 | bfd_h_put_32(abfd, 0, (bfd_byte *) ext->e.e.e_zeroes); |
| 570 | bfd_h_put_32(abfd, in->_n._n_n._n_offset, (bfd_byte *) ext->e.e.e_offset); |
| 571 | } |
| 572 | else { |
| 573 | #if SYMNMLEN != E_SYMNMLEN |
| 574 | -> Error, we need to cope with truncating or extending SYMNMLEN!; |
| 575 | #else |
| 576 | memcpy(ext->e.e_name, in->_n._n_name, SYMNMLEN); |
| 577 | #endif |
| 578 | } |
| 579 | bfd_h_put_32(abfd, in->n_value , (bfd_byte *) ext->e_value); |
| 580 | bfd_h_put_16(abfd, in->n_scnum , (bfd_byte *) ext->e_scnum); |
| 581 | if (sizeof(ext->e_type) == 2) |
| 582 | { |
| 583 | bfd_h_put_16(abfd, in->n_type , (bfd_byte *) ext->e_type); |
| 584 | } |
| 585 | else |
| 586 | { |
| 587 | bfd_h_put_32(abfd, in->n_type , (bfd_byte *) ext->e_type); |
| 588 | } |
| 589 | bfd_h_put_8(abfd, in->n_sclass , ext->e_sclass); |
| 590 | bfd_h_put_8(abfd, in->n_numaux , ext->e_numaux); |
| 591 | return sizeof(SYMENT); |
| 592 | } |
| 593 | |
| 594 | static void |
| 595 | DEFUN(coff_swap_aux_in,(abfd, ext1, type, class, in1), |
| 596 | bfd *abfd AND |
| 597 | PTR ext1 AND |
| 598 | int type AND |
| 599 | int class AND |
| 600 | PTR in1) |
| 601 | { |
| 602 | AUXENT *ext = (AUXENT *)ext1; |
| 603 | union internal_auxent *in = (union internal_auxent *)in1; |
| 604 | |
| 605 | switch (class) { |
| 606 | case C_FILE: |
| 607 | if (ext->x_file.x_fname[0] == 0) { |
| 608 | in->x_file.x_n.x_zeroes = 0; |
| 609 | in->x_file.x_n.x_offset = |
| 610 | bfd_h_get_32(abfd, (bfd_byte *) ext->x_file.x_n.x_offset); |
| 611 | } else { |
| 612 | #if FILNMLEN != E_FILNMLEN |
| 613 | -> Error, we need to cope with truncating or extending FILNMLEN!; |
| 614 | #else |
| 615 | memcpy (in->x_file.x_fname, ext->x_file.x_fname, FILNMLEN); |
| 616 | #endif |
| 617 | } |
| 618 | break; |
| 619 | |
| 620 | /* RS/6000 "csect" auxents */ |
| 621 | #ifdef RS6000COFF_C |
| 622 | case C_EXT: |
| 623 | case C_HIDEXT: |
| 624 | in->x_csect.x_scnlen = bfd_h_get_32 (abfd, (bfd_byte *) ext->x_csect.x_scnlen); |
| 625 | in->x_csect.x_parmhash = bfd_h_get_32 (abfd, (bfd_byte *) ext->x_csect.x_parmhash); |
| 626 | in->x_csect.x_snhash = bfd_h_get_16 (abfd, (bfd_byte *) ext->x_csect.x_snhash); |
| 627 | /* We don't have to hack bitfields in x_smtyp because it's defined by |
| 628 | shifts-and-ands, which are equivalent on all byte orders. */ |
| 629 | in->x_csect.x_smtyp = bfd_h_get_8 (abfd, (bfd_byte *) ext->x_csect.x_smtyp); |
| 630 | in->x_csect.x_smclas = bfd_h_get_8 (abfd, (bfd_byte *) ext->x_csect.x_smclas); |
| 631 | in->x_csect.x_stab = bfd_h_get_32 (abfd, (bfd_byte *) ext->x_csect.x_stab); |
| 632 | in->x_csect.x_snstab = bfd_h_get_16 (abfd, (bfd_byte *) ext->x_csect.x_snstab); |
| 633 | break; |
| 634 | #endif |
| 635 | |
| 636 | case C_STAT: |
| 637 | #ifdef C_LEAFSTAT |
| 638 | case C_LEAFSTAT: |
| 639 | #endif |
| 640 | case C_HIDDEN: |
| 641 | if (type == T_NULL) { |
| 642 | in->x_scn.x_scnlen = GET_SCN_SCNLEN(abfd, ext); |
| 643 | in->x_scn.x_nreloc = GET_SCN_NRELOC(abfd, ext); |
| 644 | in->x_scn.x_nlinno = GET_SCN_NLINNO(abfd, ext); |
| 645 | break; |
| 646 | } |
| 647 | default: |
| 648 | in->x_sym.x_tagndx.l = bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_tagndx); |
| 649 | #ifndef NO_TVNDX |
| 650 | in->x_sym.x_tvndx = bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_tvndx); |
| 651 | #endif |
| 652 | |
| 653 | if (ISARY(type)) { |
| 654 | #if DIMNUM != E_DIMNUM |
| 655 | -> Error, we need to cope with truncating or extending DIMNUM!; |
| 656 | #else |
| 657 | in->x_sym.x_fcnary.x_ary.x_dimen[0] = bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_ary.x_dimen[0]); |
| 658 | in->x_sym.x_fcnary.x_ary.x_dimen[1] = bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_ary.x_dimen[1]); |
| 659 | in->x_sym.x_fcnary.x_ary.x_dimen[2] = bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_ary.x_dimen[2]); |
| 660 | in->x_sym.x_fcnary.x_ary.x_dimen[3] = bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_ary.x_dimen[3]); |
| 661 | #endif |
| 662 | } |
| 663 | if (class == C_BLOCK || ISFCN(type) || ISTAG(type)) { |
| 664 | in->x_sym.x_fcnary.x_fcn.x_lnnoptr = GET_FCN_LNNOPTR(abfd, ext); |
| 665 | in->x_sym.x_fcnary.x_fcn.x_endndx.l = GET_FCN_ENDNDX(abfd, ext); |
| 666 | } |
| 667 | |
| 668 | if (ISFCN(type)) { |
| 669 | in->x_sym.x_misc.x_fsize = bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_misc.x_fsize); |
| 670 | } |
| 671 | else { |
| 672 | in->x_sym.x_misc.x_lnsz.x_lnno = GET_LNSZ_LNNO(abfd, ext); |
| 673 | in->x_sym.x_misc.x_lnsz.x_size = GET_LNSZ_SIZE(abfd, ext); |
| 674 | } |
| 675 | } |
| 676 | } |
| 677 | |
| 678 | static unsigned int |
| 679 | DEFUN(coff_swap_aux_out,(abfd, inp, type, class, extp), |
| 680 | bfd *abfd AND |
| 681 | PTR inp AND |
| 682 | int type AND |
| 683 | int class AND |
| 684 | PTR extp) |
| 685 | { |
| 686 | union internal_auxent *in = (union internal_auxent *)inp; |
| 687 | AUXENT *ext = (AUXENT *)extp; |
| 688 | |
| 689 | memset((PTR)ext, 0, AUXESZ); |
| 690 | switch (class) { |
| 691 | case C_FILE: |
| 692 | if (in->x_file.x_fname[0] == 0) { |
| 693 | PUTWORD(abfd, 0, (bfd_byte *) ext->x_file.x_n.x_zeroes); |
| 694 | PUTWORD(abfd, |
| 695 | in->x_file.x_n.x_offset, |
| 696 | (bfd_byte *) ext->x_file.x_n.x_offset); |
| 697 | } |
| 698 | else { |
| 699 | #if FILNMLEN != E_FILNMLEN |
| 700 | -> Error, we need to cope with truncating or extending FILNMLEN!; |
| 701 | #else |
| 702 | memcpy (ext->x_file.x_fname, in->x_file.x_fname, FILNMLEN); |
| 703 | #endif |
| 704 | } |
| 705 | break; |
| 706 | |
| 707 | #ifdef RS6000COFF_C |
| 708 | /* RS/6000 "csect" auxents */ |
| 709 | case C_EXT: |
| 710 | case C_HIDEXT: |
| 711 | PUTWORD (abfd, in->x_csect.x_scnlen, ext->x_csect.x_scnlen); |
| 712 | PUTWORD (abfd, in->x_csect.x_parmhash, ext->x_csect.x_parmhash); |
| 713 | PUTHALF (abfd, in->x_csect.x_snhash, ext->x_csect.x_snhash); |
| 714 | /* We don't have to hack bitfields in x_smtyp because it's defined by |
| 715 | shifts-and-ands, which are equivalent on all byte orders. */ |
| 716 | PUTBYTE (abfd, in->x_csect.x_smtyp, ext->x_csect.x_smtyp); |
| 717 | PUTBYTE (abfd, in->x_csect.x_smclas, ext->x_csect.x_smclas); |
| 718 | PUTWORD (abfd, in->x_csect.x_stab, ext->x_csect.x_stab); |
| 719 | PUTHALF (abfd, in->x_csect.x_snstab, ext->x_csect.x_snstab); |
| 720 | break; |
| 721 | #endif |
| 722 | |
| 723 | case C_STAT: |
| 724 | #ifdef C_LEAFSTAT |
| 725 | case C_LEAFSTAT: |
| 726 | #endif |
| 727 | case C_HIDDEN: |
| 728 | if (type == T_NULL) { |
| 729 | PUT_SCN_SCNLEN(abfd, in->x_scn.x_scnlen, ext); |
| 730 | PUT_SCN_NRELOC(abfd, in->x_scn.x_nreloc, ext); |
| 731 | PUT_SCN_NLINNO(abfd, in->x_scn.x_nlinno, ext); |
| 732 | break; |
| 733 | } |
| 734 | default: |
| 735 | PUTWORD(abfd, in->x_sym.x_tagndx.l, (bfd_byte *) ext->x_sym.x_tagndx); |
| 736 | #ifndef NO_TVNDX |
| 737 | bfd_h_put_16(abfd, in->x_sym.x_tvndx , (bfd_byte *) ext->x_sym.x_tvndx); |
| 738 | #endif |
| 739 | |
| 740 | if (class == C_BLOCK || ISFCN(type) || ISTAG(type)) { |
| 741 | PUT_FCN_LNNOPTR(abfd, in->x_sym.x_fcnary.x_fcn.x_lnnoptr, ext); |
| 742 | PUT_FCN_ENDNDX(abfd, in->x_sym.x_fcnary.x_fcn.x_endndx.l, ext); |
| 743 | } |
| 744 | |
| 745 | if (ISFCN(type)) { |
| 746 | PUTWORD(abfd, in->x_sym.x_misc.x_fsize, (bfd_byte *) ext->x_sym.x_misc.x_fsize); |
| 747 | } |
| 748 | else { |
| 749 | if (ISARY(type)) { |
| 750 | #if DIMNUM != E_DIMNUM |
| 751 | -> Error, we need to cope with truncating or extending DIMNUM!; |
| 752 | #else |
| 753 | bfd_h_put_16(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[0], (bfd_byte *)ext->x_sym.x_fcnary.x_ary.x_dimen[0]); |
| 754 | bfd_h_put_16(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[1], (bfd_byte *)ext->x_sym.x_fcnary.x_ary.x_dimen[1]); |
| 755 | bfd_h_put_16(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[2], (bfd_byte *)ext->x_sym.x_fcnary.x_ary.x_dimen[2]); |
| 756 | bfd_h_put_16(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[3], (bfd_byte *)ext->x_sym.x_fcnary.x_ary.x_dimen[3]); |
| 757 | #endif |
| 758 | } |
| 759 | PUT_LNSZ_LNNO(abfd, in->x_sym.x_misc.x_lnsz.x_lnno, ext); |
| 760 | PUT_LNSZ_SIZE(abfd, in->x_sym.x_misc.x_lnsz.x_size, ext); |
| 761 | } |
| 762 | } |
| 763 | return sizeof(AUXENT); |
| 764 | } |
| 765 | |
| 766 | #endif /* NO_COFF_SYMBOLS */ |
| 767 | |
| 768 | #ifndef NO_COFF_LINENOS |
| 769 | |
| 770 | static void |
| 771 | DEFUN(coff_swap_lineno_in,(abfd, ext1, in1), |
| 772 | bfd *abfd AND |
| 773 | PTR ext1 AND |
| 774 | PTR in1) |
| 775 | { |
| 776 | LINENO *ext = (LINENO *)ext1; |
| 777 | struct internal_lineno *in = (struct internal_lineno *)in1; |
| 778 | |
| 779 | in->l_addr.l_symndx = bfd_h_get_32(abfd, (bfd_byte *) ext->l_addr.l_symndx); |
| 780 | in->l_lnno = GET_LINENO_LNNO(abfd, ext); |
| 781 | } |
| 782 | |
| 783 | static unsigned int |
| 784 | DEFUN(coff_swap_lineno_out,(abfd, inp, outp), |
| 785 | bfd *abfd AND |
| 786 | PTR inp AND |
| 787 | PTR outp) |
| 788 | { |
| 789 | struct internal_lineno *in = (struct internal_lineno *)inp; |
| 790 | struct external_lineno *ext = (struct external_lineno *)outp; |
| 791 | PUTWORD(abfd, in->l_addr.l_symndx, (bfd_byte *) |
| 792 | ext->l_addr.l_symndx); |
| 793 | |
| 794 | PUT_LINENO_LNNO (abfd, in->l_lnno, ext); |
| 795 | return sizeof(struct external_lineno); |
| 796 | } |
| 797 | |
| 798 | #endif /* NO_COFF_LINENOS */ |
| 799 | |
| 800 | |
| 801 | static void |
| 802 | DEFUN(bfd_swap_aouthdr_in,(abfd, aouthdr_ext1, aouthdr_int1), |
| 803 | bfd *abfd AND |
| 804 | PTR aouthdr_ext1 AND |
| 805 | PTR aouthdr_int1) |
| 806 | { |
| 807 | AOUTHDR *aouthdr_ext = (AOUTHDR *) aouthdr_ext1; |
| 808 | struct internal_aouthdr *aouthdr_int = (struct internal_aouthdr *)aouthdr_int1; |
| 809 | |
| 810 | aouthdr_int->magic = bfd_h_get_16(abfd, (bfd_byte *) aouthdr_ext->magic); |
| 811 | aouthdr_int->vstamp = bfd_h_get_16(abfd, (bfd_byte *) aouthdr_ext->vstamp); |
| 812 | aouthdr_int->tsize = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->tsize); |
| 813 | aouthdr_int->dsize = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->dsize); |
| 814 | aouthdr_int->bsize = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->bsize); |
| 815 | aouthdr_int->entry = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->entry); |
| 816 | aouthdr_int->text_start = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->text_start); |
| 817 | aouthdr_int->data_start = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->data_start); |
| 818 | #ifdef I960 |
| 819 | aouthdr_int->tagentries = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->tagentries); |
| 820 | #endif |
| 821 | |
| 822 | #ifdef RS6000COFF_C |
| 823 | aouthdr_int->o_toc = bfd_h_get_32(abfd, aouthdr_ext->o_toc); |
| 824 | aouthdr_int->o_snentry = bfd_h_get_16(abfd, aouthdr_ext->o_snentry); |
| 825 | aouthdr_int->o_sntext = bfd_h_get_16(abfd, aouthdr_ext->o_sntext); |
| 826 | aouthdr_int->o_sndata = bfd_h_get_16(abfd, aouthdr_ext->o_sndata); |
| 827 | aouthdr_int->o_sntoc = bfd_h_get_16(abfd, aouthdr_ext->o_sntoc); |
| 828 | aouthdr_int->o_snloader = bfd_h_get_16(abfd, aouthdr_ext->o_snloader); |
| 829 | aouthdr_int->o_snbss = bfd_h_get_16(abfd, aouthdr_ext->o_snbss); |
| 830 | aouthdr_int->o_algntext = bfd_h_get_16(abfd, aouthdr_ext->o_algntext); |
| 831 | aouthdr_int->o_algndata = bfd_h_get_16(abfd, aouthdr_ext->o_algndata); |
| 832 | aouthdr_int->o_modtype = bfd_h_get_16(abfd, aouthdr_ext->o_modtype); |
| 833 | aouthdr_int->o_maxstack = bfd_h_get_32(abfd, aouthdr_ext->o_maxstack); |
| 834 | #endif |
| 835 | } |
| 836 | |
| 837 | static unsigned int |
| 838 | DEFUN(coff_swap_aouthdr_out,(abfd, in, out), |
| 839 | bfd *abfd AND |
| 840 | PTR in AND |
| 841 | PTR out) |
| 842 | { |
| 843 | struct internal_aouthdr *aouthdr_in = (struct internal_aouthdr *)in; |
| 844 | AOUTHDR *aouthdr_out = (AOUTHDR *)out; |
| 845 | bfd_h_put_16(abfd, aouthdr_in->magic, (bfd_byte *) aouthdr_out->magic); |
| 846 | bfd_h_put_16(abfd, aouthdr_in->vstamp, (bfd_byte *) aouthdr_out->vstamp); |
| 847 | bfd_h_put_32(abfd, aouthdr_in->tsize, (bfd_byte *) aouthdr_out->tsize); |
| 848 | bfd_h_put_32(abfd, aouthdr_in->dsize, (bfd_byte *) aouthdr_out->dsize); |
| 849 | bfd_h_put_32(abfd, aouthdr_in->bsize, (bfd_byte *) aouthdr_out->bsize); |
| 850 | bfd_h_put_32(abfd, aouthdr_in->entry, (bfd_byte *) aouthdr_out->entry); |
| 851 | bfd_h_put_32(abfd, aouthdr_in->text_start, |
| 852 | (bfd_byte *) aouthdr_out->text_start); |
| 853 | bfd_h_put_32(abfd, aouthdr_in->data_start, (bfd_byte *) aouthdr_out->data_start); |
| 854 | #ifdef I960 |
| 855 | bfd_h_put_32(abfd, aouthdr_in->tagentries, (bfd_byte *) aouthdr_out->tagentries); |
| 856 | #endif |
| 857 | return sizeof(AOUTHDR); |
| 858 | } |
| 859 | |
| 860 | static void |
| 861 | DEFUN(coff_swap_scnhdr_in,(abfd, scnhdr_ext, scnhdr_int), |
| 862 | bfd *abfd AND |
| 863 | SCNHDR *scnhdr_ext AND |
| 864 | struct internal_scnhdr *scnhdr_int) |
| 865 | { |
| 866 | memcpy(scnhdr_int->s_name, scnhdr_ext->s_name, sizeof(scnhdr_int->s_name)); |
| 867 | scnhdr_int->s_vaddr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_vaddr); |
| 868 | scnhdr_int->s_paddr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_paddr); |
| 869 | scnhdr_int->s_size = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_size); |
| 870 | |
| 871 | scnhdr_int->s_scnptr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_scnptr); |
| 872 | scnhdr_int->s_relptr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_relptr); |
| 873 | scnhdr_int->s_lnnoptr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_lnnoptr); |
| 874 | scnhdr_int->s_flags = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_flags); |
| 875 | #if defined(M88) |
| 876 | scnhdr_int->s_nreloc = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_nreloc); |
| 877 | scnhdr_int->s_nlnno = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_nlnno); |
| 878 | #else |
| 879 | scnhdr_int->s_nreloc = bfd_h_get_16(abfd, (bfd_byte *) scnhdr_ext->s_nreloc); |
| 880 | scnhdr_int->s_nlnno = bfd_h_get_16(abfd, (bfd_byte *) scnhdr_ext->s_nlnno); |
| 881 | #endif |
| 882 | #ifdef I960 |
| 883 | scnhdr_int->s_align = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_align); |
| 884 | #endif |
| 885 | } |
| 886 | |
| 887 | static unsigned int |
| 888 | DEFUN(coff_swap_scnhdr_out,(abfd, in, out), |
| 889 | bfd *abfd AND |
| 890 | PTR in AND |
| 891 | PTR out) |
| 892 | { |
| 893 | struct internal_scnhdr *scnhdr_int = (struct internal_scnhdr *)in; |
| 894 | SCNHDR *scnhdr_ext = (SCNHDR *)out; |
| 895 | memcpy(scnhdr_ext->s_name, scnhdr_int->s_name, sizeof(scnhdr_int->s_name)); |
| 896 | PUTWORD(abfd, scnhdr_int->s_vaddr, (bfd_byte *) scnhdr_ext->s_vaddr); |
| 897 | PUTWORD(abfd, scnhdr_int->s_paddr, (bfd_byte *) scnhdr_ext->s_paddr); |
| 898 | PUTWORD(abfd, scnhdr_int->s_size, (bfd_byte *) scnhdr_ext->s_size); |
| 899 | PUTWORD(abfd, scnhdr_int->s_scnptr, (bfd_byte *) scnhdr_ext->s_scnptr); |
| 900 | PUTWORD(abfd, scnhdr_int->s_relptr, (bfd_byte *) scnhdr_ext->s_relptr); |
| 901 | PUTWORD(abfd, scnhdr_int->s_lnnoptr, (bfd_byte *) scnhdr_ext->s_lnnoptr); |
| 902 | PUTWORD(abfd, scnhdr_int->s_flags, (bfd_byte *) scnhdr_ext->s_flags); |
| 903 | #if defined(M88) |
| 904 | PUTWORD(abfd, scnhdr_int->s_nlnno, (bfd_byte *) scnhdr_ext->s_nlnno); |
| 905 | PUTWORD(abfd, scnhdr_int->s_nreloc, (bfd_byte *) scnhdr_ext->s_nreloc); |
| 906 | #else |
| 907 | PUTHALF(abfd, scnhdr_int->s_nlnno, (bfd_byte *) scnhdr_ext->s_nlnno); |
| 908 | PUTHALF(abfd, scnhdr_int->s_nreloc, (bfd_byte *) scnhdr_ext->s_nreloc); |
| 909 | #endif |
| 910 | |
| 911 | #if defined(I960) |
| 912 | PUTWORD(abfd, scnhdr_int->s_align, (bfd_byte *) scnhdr_ext->s_align); |
| 913 | #endif |
| 914 | return sizeof(SCNHDR); |
| 915 | } |
| 916 | |
| 917 | |
| 918 | /* |
| 919 | initialize a section structure with information peculiar to this |
| 920 | particular implementation of coff |
| 921 | */ |
| 922 | |
| 923 | static boolean |
| 924 | DEFUN(coff_new_section_hook,(abfd, section), |
| 925 | bfd *abfd AND |
| 926 | asection *section) |
| 927 | { |
| 928 | section->alignment_power = abfd->xvec->align_power_min; |
| 929 | /* Allocate aux records for section symbols, to store size and |
| 930 | related info. |
| 931 | |
| 932 | @@ Shouldn't use constant multiplier here! */ |
| 933 | coffsymbol (section->symbol)->native = |
| 934 | (combined_entry_type *) bfd_zalloc (abfd, |
| 935 | sizeof (combined_entry_type) * 10); |
| 936 | return true; |
| 937 | } |
| 938 | |
| 939 | static asection bfd_debug_section = { "*DEBUG*" }; |
| 940 | |
| 941 | /* Take a section header read from a coff file (in HOST byte order), |
| 942 | and make a BFD "section" out of it. */ |
| 943 | static boolean |
| 944 | DEFUN(make_a_section_from_file,(abfd, hdr, target_index), |
| 945 | bfd *abfd AND |
| 946 | struct internal_scnhdr *hdr AND |
| 947 | unsigned int target_index) |
| 948 | { |
| 949 | asection *return_section; |
| 950 | char *name; |
| 951 | |
| 952 | /* Assorted wastage to null-terminate the name, thanks AT&T! */ |
| 953 | name = bfd_alloc(abfd, sizeof (hdr->s_name)+1); |
| 954 | if (name == NULL) { |
| 955 | bfd_error = no_memory; |
| 956 | return false; |
| 957 | } |
| 958 | strncpy(name, (char *) &hdr->s_name[0], sizeof (hdr->s_name)); |
| 959 | name[sizeof (hdr->s_name)] = 0; |
| 960 | |
| 961 | return_section = bfd_make_section(abfd, name); |
| 962 | #ifdef TWO_DATA_SECS |
| 963 | /* On SCO a file created by the Microsoft assembler can have two |
| 964 | .data sections. We use .data2 for the second one. */ |
| 965 | if (return_section == NULL && strcmp(name, _DATA) == 0) |
| 966 | return_section = bfd_make_section(abfd, ".data2"); |
| 967 | #endif /* TWO_DATA_SECS */ |
| 968 | if (return_section == NULL) |
| 969 | return false; |
| 970 | |
| 971 | /* s_paddr is presumed to be = to s_vaddr */ |
| 972 | |
| 973 | return_section->vma = hdr->s_vaddr; |
| 974 | return_section->_raw_size = hdr->s_size; |
| 975 | return_section->filepos = hdr->s_scnptr; |
| 976 | return_section->rel_filepos = hdr->s_relptr; |
| 977 | return_section->reloc_count = hdr->s_nreloc; |
| 978 | #ifdef I960 |
| 979 | |
| 980 | /* FIXME, use a temp var rather than alignment_power */ |
| 981 | return_section->alignment_power = hdr->s_align; |
| 982 | { |
| 983 | unsigned int i; |
| 984 | for (i = 0; i < 32; i++) { |
| 985 | if ((1 << i) >= (int) (return_section->alignment_power)) { |
| 986 | return_section->alignment_power = i; |
| 987 | break; |
| 988 | } |
| 989 | } |
| 990 | } |
| 991 | |
| 992 | #endif |
| 993 | return_section->line_filepos = hdr->s_lnnoptr; |
| 994 | /* |
| 995 | return_section->linesize = hdr->s_nlnno * sizeof (struct lineno); |
| 996 | */ |
| 997 | |
| 998 | return_section->lineno_count = hdr->s_nlnno; |
| 999 | return_section->userdata = NULL; |
| 1000 | return_section->next = (asection *) NULL; |
| 1001 | return_section->flags = styp_to_sec_flags(hdr->s_flags); |
| 1002 | |
| 1003 | return_section->target_index = target_index; |
| 1004 | |
| 1005 | if (hdr->s_nreloc != 0) |
| 1006 | return_section->flags |= SEC_RELOC; |
| 1007 | /* FIXME: should this check 'hdr->s_size > 0' */ |
| 1008 | if (hdr->s_scnptr != 0) |
| 1009 | return_section->flags |= SEC_HAS_CONTENTS; |
| 1010 | return true; |
| 1011 | } |
| 1012 | static boolean |
| 1013 | DEFUN(coff_mkobject,(abfd), |
| 1014 | bfd *abfd) |
| 1015 | { |
| 1016 | abfd->tdata.coff_obj_data = (struct coff_tdata *)bfd_zalloc (abfd,sizeof(coff_data_type)); |
| 1017 | if (abfd->tdata.coff_obj_data == 0){ |
| 1018 | bfd_error = no_memory; |
| 1019 | return false; |
| 1020 | } |
| 1021 | coff_data(abfd)->relocbase = 0; |
| 1022 | /* make_abs_section(abfd);*/ |
| 1023 | return true; |
| 1024 | } |
| 1025 | |
| 1026 | static |
| 1027 | bfd_target * |
| 1028 | DEFUN(coff_real_object_p,(abfd, nscns, internal_f, internal_a), |
| 1029 | bfd *abfd AND |
| 1030 | unsigned nscns AND |
| 1031 | struct internal_filehdr *internal_f AND |
| 1032 | struct internal_aouthdr *internal_a) |
| 1033 | { |
| 1034 | coff_data_type *coff; |
| 1035 | enum bfd_architecture arch; |
| 1036 | long machine; |
| 1037 | size_t readsize; /* length of file_info */ |
| 1038 | SCNHDR *external_sections; |
| 1039 | |
| 1040 | /* Build a play area */ |
| 1041 | if (coff_mkobject(abfd) != true) |
| 1042 | return 0; |
| 1043 | |
| 1044 | coff = coff_data(abfd); |
| 1045 | |
| 1046 | |
| 1047 | external_sections = (SCNHDR *)bfd_alloc(abfd, readsize = (nscns * SCNHSZ)); |
| 1048 | |
| 1049 | if (bfd_read((PTR)external_sections, 1, readsize, abfd) != readsize) { |
| 1050 | goto fail; |
| 1051 | } |
| 1052 | |
| 1053 | |
| 1054 | /* Now copy data as required; construct all asections etc */ |
| 1055 | coff->symbol_index_slew = 0; |
| 1056 | coff->relocbase =0; |
| 1057 | coff->raw_syment_count = 0; |
| 1058 | coff->raw_linenos = 0; |
| 1059 | coff->raw_syments = 0; |
| 1060 | coff->sym_filepos =0; |
| 1061 | coff->flags = internal_f->f_flags; |
| 1062 | if (nscns != 0) { |
| 1063 | unsigned int i; |
| 1064 | for (i = 0; i < nscns; i++) { |
| 1065 | struct internal_scnhdr tmp; |
| 1066 | coff_swap_scnhdr_in(abfd, external_sections + i, &tmp); |
| 1067 | make_a_section_from_file(abfd,&tmp, i+1); |
| 1068 | } |
| 1069 | } |
| 1070 | |
| 1071 | /* make_abs_section(abfd);*/ |
| 1072 | |
| 1073 | /* Determine the machine architecture and type. */ |
| 1074 | machine = 0; |
| 1075 | switch (internal_f->f_magic) { |
| 1076 | #ifdef I386MAGIC |
| 1077 | case I386MAGIC: |
| 1078 | arch = bfd_arch_i386; |
| 1079 | machine = 0; |
| 1080 | break; |
| 1081 | #endif |
| 1082 | |
| 1083 | #ifdef A29K_MAGIC_BIG |
| 1084 | case A29K_MAGIC_BIG: |
| 1085 | case A29K_MAGIC_LITTLE: |
| 1086 | arch = bfd_arch_a29k; |
| 1087 | machine = 0; |
| 1088 | break; |
| 1089 | #endif |
| 1090 | |
| 1091 | #ifdef MIPS |
| 1092 | case MIPS_MAGIC_1: |
| 1093 | case MIPS_MAGIC_2: |
| 1094 | case MIPS_MAGIC_3: |
| 1095 | arch = bfd_arch_mips; |
| 1096 | machine = 0; |
| 1097 | break; |
| 1098 | #endif |
| 1099 | |
| 1100 | #ifdef MC68MAGIC |
| 1101 | case MC68MAGIC: |
| 1102 | case M68MAGIC: |
| 1103 | arch = bfd_arch_m68k; |
| 1104 | machine = 68020; |
| 1105 | break; |
| 1106 | #endif |
| 1107 | #ifdef MC88MAGIC |
| 1108 | case MC88MAGIC: |
| 1109 | case MC88DMAGIC: |
| 1110 | case MC88OMAGIC: |
| 1111 | arch = bfd_arch_m88k; |
| 1112 | machine = 88100; |
| 1113 | break; |
| 1114 | #endif |
| 1115 | #ifdef Z8KMAGIC |
| 1116 | case Z8KMAGIC: |
| 1117 | arch = bfd_arch_z8k; |
| 1118 | switch (internal_f->f_flags & F_MACHMASK) |
| 1119 | { |
| 1120 | case F_Z8001: |
| 1121 | machine = bfd_mach_z8001; |
| 1122 | break; |
| 1123 | case F_Z8002: |
| 1124 | machine = bfd_mach_z8002; |
| 1125 | break; |
| 1126 | default: |
| 1127 | goto fail; |
| 1128 | } |
| 1129 | break; |
| 1130 | #endif |
| 1131 | #ifdef I960 |
| 1132 | #ifdef I960ROMAGIC |
| 1133 | case I960ROMAGIC: |
| 1134 | case I960RWMAGIC: |
| 1135 | arch = bfd_arch_i960; |
| 1136 | switch (F_I960TYPE & internal_f->f_flags) |
| 1137 | { |
| 1138 | default: |
| 1139 | case F_I960CORE: |
| 1140 | machine = bfd_mach_i960_core; |
| 1141 | break; |
| 1142 | case F_I960KB: |
| 1143 | machine = bfd_mach_i960_kb_sb; |
| 1144 | break; |
| 1145 | case F_I960MC: |
| 1146 | machine = bfd_mach_i960_mc; |
| 1147 | break; |
| 1148 | case F_I960XA: |
| 1149 | machine = bfd_mach_i960_xa; |
| 1150 | break; |
| 1151 | case F_I960CA: |
| 1152 | machine = bfd_mach_i960_ca; |
| 1153 | break; |
| 1154 | case F_I960KA: |
| 1155 | machine = bfd_mach_i960_ka_sa; |
| 1156 | break; |
| 1157 | } |
| 1158 | break; |
| 1159 | #endif |
| 1160 | #endif |
| 1161 | |
| 1162 | #ifdef U802ROMAGIC |
| 1163 | case U802ROMAGIC: |
| 1164 | case U802WRMAGIC: |
| 1165 | case U802TOCMAGIC: |
| 1166 | arch = bfd_arch_rs6000; |
| 1167 | machine = 6000; |
| 1168 | break; |
| 1169 | #endif |
| 1170 | |
| 1171 | #ifdef WE32KMAGIC |
| 1172 | case WE32KMAGIC: |
| 1173 | arch = bfd_arch_we32k; |
| 1174 | machine = 0; |
| 1175 | break; |
| 1176 | #endif |
| 1177 | |
| 1178 | #ifdef H8300MAGIC |
| 1179 | case H8300MAGIC: |
| 1180 | arch = bfd_arch_h8300; |
| 1181 | machine = 0; |
| 1182 | break; |
| 1183 | #endif |
| 1184 | |
| 1185 | default: /* Unreadable input file type */ |
| 1186 | arch = bfd_arch_obscure; |
| 1187 | break; |
| 1188 | } |
| 1189 | |
| 1190 | bfd_default_set_arch_mach(abfd, arch, machine); |
| 1191 | if (!(internal_f->f_flags & F_RELFLG)) |
| 1192 | abfd->flags |= HAS_RELOC; |
| 1193 | if ((internal_f->f_flags & F_EXEC)) |
| 1194 | abfd->flags |= EXEC_P; |
| 1195 | if (!(internal_f->f_flags & F_LNNO)) |
| 1196 | abfd->flags |= HAS_LINENO; |
| 1197 | if (!(internal_f->f_flags & F_LSYMS)) |
| 1198 | abfd->flags |= HAS_LOCALS; |
| 1199 | |
| 1200 | |
| 1201 | bfd_get_symcount(abfd) = internal_f->f_nsyms; |
| 1202 | if (internal_f->f_nsyms) |
| 1203 | abfd->flags |= HAS_SYMS; |
| 1204 | |
| 1205 | coff->sym_filepos = internal_f->f_symptr; |
| 1206 | |
| 1207 | /* These members communicate important constants about the symbol table |
| 1208 | to GDB's symbol-reading code. These `constants' unfortunately vary |
| 1209 | from coff implementation to implementation... */ |
| 1210 | #ifndef NO_COFF_SYMBOLS |
| 1211 | coff->local_n_btmask = N_BTMASK; |
| 1212 | coff->local_n_btshft = N_BTSHFT; |
| 1213 | coff->local_n_tmask = N_TMASK; |
| 1214 | coff->local_n_tshift = N_TSHIFT; |
| 1215 | coff->local_symesz = SYMESZ; |
| 1216 | coff->local_auxesz = AUXESZ; |
| 1217 | coff->local_linesz = LINESZ; |
| 1218 | #endif |
| 1219 | |
| 1220 | coff->symbols = (coff_symbol_type *) NULL; |
| 1221 | bfd_get_start_address(abfd) = internal_f->f_opthdr ? internal_a->entry : 0; |
| 1222 | |
| 1223 | return abfd->xvec; |
| 1224 | fail: |
| 1225 | bfd_release(abfd, coff); |
| 1226 | return (bfd_target *)NULL; |
| 1227 | } |
| 1228 | |
| 1229 | static bfd_target * |
| 1230 | DEFUN(coff_object_p,(abfd), |
| 1231 | bfd *abfd) |
| 1232 | { |
| 1233 | int nscns; |
| 1234 | FILHDR filehdr; |
| 1235 | AOUTHDR opthdr; |
| 1236 | struct internal_filehdr internal_f; |
| 1237 | struct internal_aouthdr internal_a; |
| 1238 | |
| 1239 | bfd_error = system_call_error; |
| 1240 | |
| 1241 | /* figure out how much to read */ |
| 1242 | if (bfd_read((PTR) &filehdr, 1, FILHSZ, abfd) != FILHSZ) |
| 1243 | return 0; |
| 1244 | |
| 1245 | bfd_swap_filehdr_in(abfd, &filehdr, &internal_f); |
| 1246 | |
| 1247 | if (BADMAG(internal_f)) { |
| 1248 | bfd_error = wrong_format; |
| 1249 | return 0; |
| 1250 | } |
| 1251 | nscns =internal_f.f_nscns; |
| 1252 | |
| 1253 | if (internal_f.f_opthdr) { |
| 1254 | if (bfd_read((PTR) &opthdr, 1,AOUTSZ, abfd) != AOUTSZ) { |
| 1255 | return 0; |
| 1256 | } |
| 1257 | bfd_swap_aouthdr_in(abfd, (char *)&opthdr, (char *)&internal_a); |
| 1258 | } |
| 1259 | |
| 1260 | /* Seek past the opt hdr stuff */ |
| 1261 | bfd_seek(abfd, (file_ptr) (internal_f.f_opthdr + FILHSZ), SEEK_SET); |
| 1262 | |
| 1263 | /* if the optional header is NULL or not the correct size then |
| 1264 | quit; the only difference I can see between m88k dgux headers (MC88DMAGIC) |
| 1265 | and Intel 960 readwrite headers (I960WRMAGIC) is that the |
| 1266 | optional header is of a different size. |
| 1267 | |
| 1268 | But the mips keeps extra stuff in it's opthdr, so dont check |
| 1269 | when doing that |
| 1270 | */ |
| 1271 | |
| 1272 | #if defined(M88) || defined(I960) |
| 1273 | if (internal_f.f_opthdr != 0 && AOUTSZ != internal_f.f_opthdr) |
| 1274 | return (bfd_target *)NULL; |
| 1275 | #endif |
| 1276 | |
| 1277 | return coff_real_object_p(abfd, nscns, &internal_f, &internal_a); |
| 1278 | } |
| 1279 | |
| 1280 | |
| 1281 | |
| 1282 | #ifndef NO_COFF_LINENOS |
| 1283 | |
| 1284 | static void |
| 1285 | DEFUN(coff_count_linenumbers,(abfd), |
| 1286 | bfd *abfd) |
| 1287 | { |
| 1288 | unsigned int limit = bfd_get_symcount(abfd); |
| 1289 | unsigned int i; |
| 1290 | asymbol **p; |
| 1291 | { |
| 1292 | asection *s = abfd->sections->output_section; |
| 1293 | while (s) { |
| 1294 | BFD_ASSERT(s->lineno_count == 0); |
| 1295 | s = s->next; |
| 1296 | } |
| 1297 | } |
| 1298 | |
| 1299 | |
| 1300 | for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) { |
| 1301 | asymbol *q_maybe = *p; |
| 1302 | if (q_maybe->the_bfd->xvec->flavour == bfd_target_coff_flavour) { |
| 1303 | coff_symbol_type *q = coffsymbol(q_maybe); |
| 1304 | if (q->lineno) { |
| 1305 | /* |
| 1306 | This symbol has a linenumber, increment the owning |
| 1307 | section's linenumber count |
| 1308 | */ |
| 1309 | alent *l = q->lineno; |
| 1310 | q->symbol.section->output_section->lineno_count++; |
| 1311 | l++; |
| 1312 | while (l->line_number) { |
| 1313 | q->symbol.section->output_section->lineno_count++; |
| 1314 | l++; |
| 1315 | } |
| 1316 | } |
| 1317 | } |
| 1318 | } |
| 1319 | } |
| 1320 | |
| 1321 | #endif /* NO_COFF_LINENOS */ |
| 1322 | |
| 1323 | #ifndef NO_COFF_SYMBOLS |
| 1324 | |
| 1325 | /* |
| 1326 | Takes a bfd and a symbol, returns a pointer to the coff specific area |
| 1327 | of the symbol if there is one. |
| 1328 | */ |
| 1329 | static coff_symbol_type * |
| 1330 | DEFUN(coff_symbol_from,(ignore_abfd, symbol), |
| 1331 | bfd *ignore_abfd AND |
| 1332 | asymbol *symbol) |
| 1333 | { |
| 1334 | if (symbol->the_bfd->xvec->flavour != bfd_target_coff_flavour) |
| 1335 | return (coff_symbol_type *)NULL; |
| 1336 | |
| 1337 | if (symbol->the_bfd->tdata.coff_obj_data == (coff_data_type*)NULL) |
| 1338 | return (coff_symbol_type *)NULL; |
| 1339 | |
| 1340 | return (coff_symbol_type *) symbol; |
| 1341 | } |
| 1342 | |
| 1343 | |
| 1344 | |
| 1345 | static void |
| 1346 | DEFUN(fixup_symbol_value,(coff_symbol_ptr, syment), |
| 1347 | coff_symbol_type *coff_symbol_ptr AND |
| 1348 | struct internal_syment *syment) |
| 1349 | { |
| 1350 | |
| 1351 | /* Normalize the symbol flags */ |
| 1352 | if (coff_symbol_ptr->symbol.section == &bfd_com_section) { |
| 1353 | /* a common symbol is undefined with a value */ |
| 1354 | syment->n_scnum = N_UNDEF; |
| 1355 | syment->n_value = coff_symbol_ptr->symbol.value; |
| 1356 | } |
| 1357 | else if (coff_symbol_ptr->symbol.flags & BSF_DEBUGGING) { |
| 1358 | syment->n_value = coff_symbol_ptr->symbol.value; |
| 1359 | } |
| 1360 | else if (coff_symbol_ptr->symbol.section == & bfd_und_section) { |
| 1361 | syment->n_scnum = N_UNDEF; |
| 1362 | syment->n_value = 0; |
| 1363 | } |
| 1364 | else { |
| 1365 | if (coff_symbol_ptr->symbol.section) { |
| 1366 | syment->n_scnum = |
| 1367 | coff_symbol_ptr->symbol.section->output_section->target_index; |
| 1368 | |
| 1369 | syment->n_value = |
| 1370 | coff_symbol_ptr->symbol.value + |
| 1371 | coff_symbol_ptr->symbol.section->output_offset + |
| 1372 | coff_symbol_ptr->symbol.section->output_section->vma; |
| 1373 | } |
| 1374 | else { |
| 1375 | BFD_ASSERT(0); |
| 1376 | /* This can happen, but I don't know why yet (steve@cygnus.com) */ |
| 1377 | syment->n_scnum = N_ABS; |
| 1378 | syment->n_value = coff_symbol_ptr->symbol.value; |
| 1379 | } |
| 1380 | } |
| 1381 | } |
| 1382 | |
| 1383 | /* run through all the symbols in the symbol table and work out what |
| 1384 | their indexes into the symbol table will be when output |
| 1385 | |
| 1386 | Coff requires that each C_FILE symbol points to the next one in the |
| 1387 | chain, and that the last one points to the first external symbol. We |
| 1388 | do that here too. |
| 1389 | |
| 1390 | */ |
| 1391 | static void |
| 1392 | DEFUN(coff_renumber_symbols,(bfd_ptr), |
| 1393 | bfd *bfd_ptr) |
| 1394 | { |
| 1395 | unsigned int symbol_count = bfd_get_symcount(bfd_ptr); |
| 1396 | asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols; |
| 1397 | unsigned int native_index = 0; |
| 1398 | struct internal_syment *last_file = (struct internal_syment *)NULL; |
| 1399 | unsigned int symbol_index; |
| 1400 | |
| 1401 | /* COFF demands that undefined symbols come after all other symbols. |
| 1402 | Since we don't need to impose this extra knowledge on all our client |
| 1403 | programs, deal with that here. Sort the symbol table; just move the |
| 1404 | undefined symbols to the end, leaving the rest alone. */ |
| 1405 | /* @@ Do we have some condition we could test for, so we don't always |
| 1406 | have to do this? I don't think relocatability is quite right, but |
| 1407 | I'm not certain. [raeburn:19920508.1711EST] */ |
| 1408 | { |
| 1409 | asymbol **newsyms; |
| 1410 | int i; |
| 1411 | |
| 1412 | newsyms = (asymbol **) bfd_alloc_by_size_t (bfd_ptr, |
| 1413 | sizeof (asymbol *) |
| 1414 | * (symbol_count + 1)); |
| 1415 | bfd_ptr->outsymbols = newsyms; |
| 1416 | for (i = 0; i < symbol_count; i++) |
| 1417 | if (symbol_ptr_ptr[i]->section != &bfd_und_section) |
| 1418 | *newsyms++ = symbol_ptr_ptr[i]; |
| 1419 | for (i = 0; i < symbol_count; i++) |
| 1420 | if (symbol_ptr_ptr[i]->section == &bfd_und_section) |
| 1421 | *newsyms++ = symbol_ptr_ptr[i]; |
| 1422 | *newsyms = (asymbol *) NULL; |
| 1423 | symbol_ptr_ptr = bfd_ptr->outsymbols; |
| 1424 | } |
| 1425 | |
| 1426 | for (symbol_index = 0; symbol_index < symbol_count; symbol_index++) |
| 1427 | { |
| 1428 | coff_symbol_type *coff_symbol_ptr = coff_symbol_from(bfd_ptr, symbol_ptr_ptr[symbol_index]); |
| 1429 | if (coff_symbol_ptr && coff_symbol_ptr->native) { |
| 1430 | combined_entry_type *s = coff_symbol_ptr->native; |
| 1431 | int i; |
| 1432 | |
| 1433 | if (s->u.syment.n_sclass == C_FILE) |
| 1434 | { |
| 1435 | if (last_file != (struct internal_syment *)NULL) { |
| 1436 | last_file->n_value = native_index; |
| 1437 | } |
| 1438 | last_file = &(s->u.syment); |
| 1439 | } |
| 1440 | else { |
| 1441 | |
| 1442 | /* Modify the symbol values according to their section and |
| 1443 | type */ |
| 1444 | |
| 1445 | fixup_symbol_value(coff_symbol_ptr, &(s->u.syment)); |
| 1446 | } |
| 1447 | for (i = 0; i < s->u.syment.n_numaux + 1; i++) { |
| 1448 | s[i].offset = native_index ++; |
| 1449 | } |
| 1450 | } |
| 1451 | else { |
| 1452 | native_index++; |
| 1453 | } |
| 1454 | } |
| 1455 | obj_conv_table_size (bfd_ptr) = native_index; |
| 1456 | } |
| 1457 | |
| 1458 | |
| 1459 | /* |
| 1460 | Run thorough the symbol table again, and fix it so that all pointers to |
| 1461 | entries are changed to the entries' index in the output symbol table. |
| 1462 | |
| 1463 | */ |
| 1464 | static void |
| 1465 | DEFUN(coff_mangle_symbols,(bfd_ptr), |
| 1466 | bfd *bfd_ptr) |
| 1467 | { |
| 1468 | unsigned int symbol_count = bfd_get_symcount(bfd_ptr); |
| 1469 | asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols; |
| 1470 | unsigned int symbol_index; |
| 1471 | |
| 1472 | for (symbol_index = 0; symbol_index < symbol_count; symbol_index++) |
| 1473 | { |
| 1474 | coff_symbol_type *coff_symbol_ptr = |
| 1475 | coff_symbol_from(bfd_ptr, symbol_ptr_ptr[symbol_index]); |
| 1476 | |
| 1477 | if (coff_symbol_ptr && coff_symbol_ptr->native) { |
| 1478 | int i; |
| 1479 | combined_entry_type *s = coff_symbol_ptr->native; |
| 1480 | |
| 1481 | for (i = 0; i < s->u.syment.n_numaux ; i++) { |
| 1482 | combined_entry_type *a = s + i + 1; |
| 1483 | if (a->fix_tag) { |
| 1484 | a->u.auxent.x_sym.x_tagndx.l = |
| 1485 | a->u.auxent.x_sym.x_tagndx.p->offset; |
| 1486 | a->fix_tag = 0; |
| 1487 | } |
| 1488 | if (a->fix_end) { |
| 1489 | a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l = |
| 1490 | a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p->offset; |
| 1491 | a->fix_end = 0; |
| 1492 | |
| 1493 | } |
| 1494 | |
| 1495 | } |
| 1496 | } |
| 1497 | } |
| 1498 | } |
| 1499 | |
| 1500 | static int string_size; |
| 1501 | static void |
| 1502 | DEFUN(coff_fix_symbol_name,(ignore_abfd, symbol, native), |
| 1503 | bfd *ignore_abfd AND |
| 1504 | asymbol *symbol AND |
| 1505 | combined_entry_type *native) |
| 1506 | { |
| 1507 | unsigned int name_length; |
| 1508 | union internal_auxent *auxent; |
| 1509 | char * name = ( char *)(symbol->name); |
| 1510 | |
| 1511 | if (name == (char *) NULL) { |
| 1512 | /* coff symbols always have names, so we'll make one up */ |
| 1513 | symbol->name = "strange"; |
| 1514 | name = (char *)symbol->name; |
| 1515 | } |
| 1516 | name_length = strlen(name); |
| 1517 | |
| 1518 | if (native->u.syment.n_sclass == C_FILE) { |
| 1519 | strncpy(native->u.syment._n._n_name, ".file", SYMNMLEN); |
| 1520 | auxent = &(native+1)->u.auxent; |
| 1521 | |
| 1522 | #ifdef COFF_LONG_FILENAMES |
| 1523 | if (name_length <= FILNMLEN) { |
| 1524 | strncpy(auxent->x_file.x_fname, name, FILNMLEN); |
| 1525 | } |
| 1526 | else { |
| 1527 | auxent->x_file.x_n.x_offset = string_size + 4; |
| 1528 | auxent->x_file.x_n.x_zeroes = 0; |
| 1529 | string_size += name_length + 1; |
| 1530 | } |
| 1531 | #else |
| 1532 | strncpy(auxent->x_file.x_fname, name, FILNMLEN); |
| 1533 | if (name_length > FILNMLEN) { |
| 1534 | name[FILNMLEN] = '\0'; |
| 1535 | } |
| 1536 | #endif |
| 1537 | } |
| 1538 | else |
| 1539 | { /* NOT A C_FILE SYMBOL */ |
| 1540 | if (name_length <= SYMNMLEN) { |
| 1541 | /* This name will fit into the symbol neatly */ |
| 1542 | strncpy(native->u.syment._n._n_name, symbol->name, SYMNMLEN); |
| 1543 | } |
| 1544 | else { |
| 1545 | native->u.syment._n._n_n._n_offset = string_size + 4; |
| 1546 | native->u.syment._n._n_n._n_zeroes = 0; |
| 1547 | string_size += name_length + 1; |
| 1548 | } |
| 1549 | } |
| 1550 | } |
| 1551 | |
| 1552 | |
| 1553 | |
| 1554 | static unsigned int |
| 1555 | DEFUN(coff_write_symbol,(abfd, symbol, native, written), |
| 1556 | bfd *abfd AND |
| 1557 | asymbol *symbol AND |
| 1558 | combined_entry_type *native AND |
| 1559 | unsigned int written) |
| 1560 | { |
| 1561 | unsigned int numaux = native->u.syment.n_numaux; |
| 1562 | int type = native->u.syment.n_type; |
| 1563 | int class = native->u.syment.n_sclass; |
| 1564 | SYMENT buf; |
| 1565 | unsigned int j; |
| 1566 | |
| 1567 | /* @@ bfd_debug_section isn't accessible outside this file, but we know |
| 1568 | that C_FILE symbols belong there. So move them. */ |
| 1569 | if (native->u.syment.n_sclass == C_FILE) |
| 1570 | symbol->section = &bfd_debug_section; |
| 1571 | |
| 1572 | if (symbol->section == &bfd_abs_section) |
| 1573 | { |
| 1574 | native->u.syment.n_scnum = N_ABS; |
| 1575 | } |
| 1576 | else if (symbol->section == &bfd_debug_section) |
| 1577 | { |
| 1578 | native->u.syment.n_scnum = N_DEBUG; |
| 1579 | } |
| 1580 | else if (symbol->section == &bfd_und_section) |
| 1581 | { |
| 1582 | native->u.syment.n_scnum = N_UNDEF; |
| 1583 | } |
| 1584 | else |
| 1585 | { |
| 1586 | native->u.syment.n_scnum = |
| 1587 | symbol->section->output_section->target_index; |
| 1588 | } |
| 1589 | |
| 1590 | |
| 1591 | coff_fix_symbol_name(abfd, symbol, native); |
| 1592 | |
| 1593 | coff_swap_sym_out(abfd, &native->u.syment, &buf); |
| 1594 | bfd_write((PTR)& buf, 1, SYMESZ, abfd); |
| 1595 | for (j = 0; j < native->u.syment.n_numaux; j++) |
| 1596 | { |
| 1597 | AUXENT buf1; |
| 1598 | coff_swap_aux_out(abfd, |
| 1599 | &( (native + j + 1)->u.auxent), type, class, &buf1); |
| 1600 | bfd_write((PTR) (&buf1), 1, AUXESZ, abfd); |
| 1601 | } |
| 1602 | /* |
| 1603 | Reuse somewhere in the symbol to keep the index |
| 1604 | */ |
| 1605 | set_index(symbol, written); |
| 1606 | return written + 1 + numaux; |
| 1607 | } |
| 1608 | |
| 1609 | |
| 1610 | static unsigned int |
| 1611 | DEFUN(coff_write_alien_symbol,(abfd, symbol, written), |
| 1612 | bfd *abfd AND |
| 1613 | asymbol *symbol AND |
| 1614 | unsigned int written) |
| 1615 | { |
| 1616 | /* |
| 1617 | This symbol has been created by the loader, or come from a non |
| 1618 | coff format. It has no native element to inherit, make our |
| 1619 | own |
| 1620 | */ |
| 1621 | combined_entry_type *native; |
| 1622 | combined_entry_type dummy; |
| 1623 | native = &dummy; |
| 1624 | native->u.syment.n_type = T_NULL; |
| 1625 | #ifdef I960 |
| 1626 | native->u.syment.n_flags = 0; |
| 1627 | #endif |
| 1628 | if (symbol->section == &bfd_und_section) |
| 1629 | { |
| 1630 | native->u.syment.n_scnum = N_UNDEF; |
| 1631 | native->u.syment.n_value = symbol->value; |
| 1632 | } |
| 1633 | else if (symbol->section == &bfd_com_section) |
| 1634 | { |
| 1635 | native->u.syment.n_scnum = N_UNDEF; |
| 1636 | native->u.syment.n_value = symbol->value; |
| 1637 | |
| 1638 | } |
| 1639 | |
| 1640 | else if (symbol->flags & BSF_DEBUGGING) { |
| 1641 | /* |
| 1642 | remove name so it doesn't take up any space |
| 1643 | */ |
| 1644 | symbol->name = ""; |
| 1645 | } |
| 1646 | else { |
| 1647 | native->u.syment.n_scnum = symbol->section->output_section->target_index; |
| 1648 | native->u.syment.n_value = symbol->value + |
| 1649 | symbol->section->output_section->vma + |
| 1650 | symbol->section->output_offset; |
| 1651 | #ifdef I960 |
| 1652 | /* Copy the any flags from the the file hdr into the symbol */ |
| 1653 | { |
| 1654 | coff_symbol_type *c = coff_symbol_from(abfd, symbol); |
| 1655 | if (c != (coff_symbol_type *)NULL) { |
| 1656 | native->u.syment.n_flags = c->symbol.the_bfd->flags; |
| 1657 | } |
| 1658 | } |
| 1659 | #endif |
| 1660 | } |
| 1661 | |
| 1662 | #ifdef HASPAD1 |
| 1663 | native->u.syment.pad1[0] = 0; |
| 1664 | native->u.syment.pad1[0] = 0; |
| 1665 | #endif |
| 1666 | |
| 1667 | native->u.syment.n_type = 0; |
| 1668 | if (symbol->flags & BSF_LOCAL) |
| 1669 | native->u.syment.n_sclass = C_STAT; |
| 1670 | else |
| 1671 | native->u.syment.n_sclass = C_EXT; |
| 1672 | native->u.syment.n_numaux = 0; |
| 1673 | |
| 1674 | return coff_write_symbol(abfd, symbol, native, written); |
| 1675 | } |
| 1676 | |
| 1677 | static unsigned int |
| 1678 | DEFUN(coff_write_native_symbol,(abfd, symbol, written), |
| 1679 | bfd *abfd AND |
| 1680 | coff_symbol_type *symbol AND |
| 1681 | unsigned int written) |
| 1682 | { |
| 1683 | /* |
| 1684 | Does this symbol have an ascociated line number - if so then |
| 1685 | make it remember this symbol index. Also tag the auxent of |
| 1686 | this symbol to point to the right place in the lineno table |
| 1687 | */ |
| 1688 | combined_entry_type *native = symbol->native; |
| 1689 | |
| 1690 | alent *lineno = symbol->lineno; |
| 1691 | |
| 1692 | if (lineno && !symbol->done_lineno) { |
| 1693 | unsigned int count = 0; |
| 1694 | lineno[count].u.offset = written; |
| 1695 | if (native->u.syment.n_numaux) { |
| 1696 | union internal_auxent *a = &((native+1)->u.auxent); |
| 1697 | |
| 1698 | a->x_sym.x_fcnary.x_fcn.x_lnnoptr = |
| 1699 | symbol->symbol.section->output_section->moving_line_filepos; |
| 1700 | } |
| 1701 | /* |
| 1702 | And count and relocate all other linenumbers |
| 1703 | */ |
| 1704 | |
| 1705 | count++; |
| 1706 | while (lineno[count].line_number) { |
| 1707 | #if 0 |
| 1708 | /* 13 april 92. sac |
| 1709 | I've been told this, but still need proof: |
| 1710 | > The second bug is also in `bfd/coffcode.h'. This bug causes the linker to screw |
| 1711 | > up the pc-relocations for all the line numbers in COFF code. This bug isn't |
| 1712 | > only specific to A29K implementations, but affects all systems using COFF |
| 1713 | > format binaries. Note that in COFF object files, the line number core offsets |
| 1714 | > output by the assembler are relative to the start of each procedure, not |
| 1715 | > to the start of the .text section. This patch relocates the line numbers |
| 1716 | > relative to the `native->u.syment.n_value' instead of the section virtual |
| 1717 | > address. modular!olson@cs.arizona.edu (Jon Olson) |
| 1718 | */ |
| 1719 | lineno[count].u.offset += native->u.syment.n_value; |
| 1720 | |
| 1721 | #else |
| 1722 | lineno[count].u.offset += |
| 1723 | symbol->symbol.section->output_section->vma + |
| 1724 | symbol->symbol.section->output_offset; |
| 1725 | #endif |
| 1726 | count++; |
| 1727 | } |
| 1728 | symbol->done_lineno = true; |
| 1729 | |
| 1730 | symbol->symbol.section->output_section->moving_line_filepos += |
| 1731 | count * LINESZ; |
| 1732 | } |
| 1733 | return coff_write_symbol(abfd, &( symbol->symbol), native,written); |
| 1734 | } |
| 1735 | |
| 1736 | static void |
| 1737 | DEFUN(coff_write_symbols,(abfd), |
| 1738 | bfd *abfd) |
| 1739 | { |
| 1740 | unsigned int i; |
| 1741 | unsigned int limit = bfd_get_symcount(abfd); |
| 1742 | unsigned int written = 0; |
| 1743 | |
| 1744 | asymbol **p; |
| 1745 | |
| 1746 | string_size = 0; |
| 1747 | |
| 1748 | |
| 1749 | /* Seek to the right place */ |
| 1750 | bfd_seek(abfd, obj_sym_filepos(abfd), SEEK_SET); |
| 1751 | |
| 1752 | /* Output all the symbols we have */ |
| 1753 | |
| 1754 | written = 0; |
| 1755 | for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) |
| 1756 | { |
| 1757 | asymbol *symbol = *p; |
| 1758 | coff_symbol_type *c_symbol = coff_symbol_from(abfd, symbol); |
| 1759 | |
| 1760 | if (c_symbol == (coff_symbol_type *) NULL || |
| 1761 | c_symbol->native == (combined_entry_type *)NULL) |
| 1762 | { |
| 1763 | written = coff_write_alien_symbol(abfd, symbol, written); |
| 1764 | } |
| 1765 | else |
| 1766 | { |
| 1767 | written = coff_write_native_symbol(abfd, c_symbol, written); |
| 1768 | } |
| 1769 | |
| 1770 | } |
| 1771 | |
| 1772 | bfd_get_symcount(abfd) = written; |
| 1773 | |
| 1774 | /* Now write out strings */ |
| 1775 | |
| 1776 | if (string_size != 0) |
| 1777 | { |
| 1778 | unsigned int size = string_size + 4; |
| 1779 | bfd_byte buffer[4]; |
| 1780 | |
| 1781 | bfd_h_put_32(abfd, size, buffer); |
| 1782 | bfd_write((PTR) buffer, 1, sizeof(buffer), abfd); |
| 1783 | for (p = abfd->outsymbols, i = 0; |
| 1784 | i < limit; |
| 1785 | i++, p++) |
| 1786 | { |
| 1787 | asymbol *q = *p; |
| 1788 | size_t name_length = strlen(q->name); |
| 1789 | int maxlen; |
| 1790 | coff_symbol_type* c_symbol = coff_symbol_from(abfd, q); |
| 1791 | maxlen = ((c_symbol != NULL && c_symbol->native != NULL) && |
| 1792 | (c_symbol->native->u.syment.n_sclass == C_FILE)) ? |
| 1793 | FILNMLEN : SYMNMLEN; |
| 1794 | |
| 1795 | if (name_length > maxlen) { |
| 1796 | bfd_write((PTR) (q->name), 1, name_length + 1, abfd); |
| 1797 | } |
| 1798 | } |
| 1799 | } |
| 1800 | else { |
| 1801 | /* We would normally not write anything here, but we'll write |
| 1802 | out 4 so that any stupid coff reader which tries to read |
| 1803 | the string table even when there isn't one won't croak. |
| 1804 | */ |
| 1805 | |
| 1806 | uint32e_type size = 4; |
| 1807 | size = size; |
| 1808 | bfd_write((PTR)&size, 1, sizeof(size), abfd); |
| 1809 | |
| 1810 | } |
| 1811 | } |
| 1812 | |
| 1813 | /* |
| 1814 | SUBSUBSECTION |
| 1815 | Writing Relocations |
| 1816 | |
| 1817 | To write relocations, all the back end does is step though the |
| 1818 | canonical relocation table, and create an |
| 1819 | @code{internal_reloc}. The symbol index to use is removed from |
| 1820 | the @code{offset} field in the symbol table supplied, the |
| 1821 | address comes directly from the sum of the section base |
| 1822 | address and the relocation offset and the type is dug directly |
| 1823 | from the howto field. Then the @code{internal_reloc} is |
| 1824 | swapped into the shape of an @code{external_reloc} and written |
| 1825 | out to disk. |
| 1826 | |
| 1827 | */ |
| 1828 | |
| 1829 | static void |
| 1830 | DEFUN(coff_write_relocs,(abfd), |
| 1831 | bfd *abfd) |
| 1832 | { |
| 1833 | asection *s; |
| 1834 | for (s = abfd->sections; s != (asection *) NULL; s = s->next) { |
| 1835 | unsigned int i; |
| 1836 | struct external_reloc dst; |
| 1837 | |
| 1838 | arelent **p = s->orelocation; |
| 1839 | bfd_seek(abfd, s->rel_filepos, SEEK_SET); |
| 1840 | for (i = 0; i < s->reloc_count; i++) { |
| 1841 | struct internal_reloc n; |
| 1842 | arelent *q = p[i]; |
| 1843 | memset((PTR)&n, 0, sizeof(n)); |
| 1844 | |
| 1845 | n.r_vaddr = q->address + s->vma; |
| 1846 | /* The 29k const/consth reloc pair is a real kludge - the consth |
| 1847 | part doesn't have a symbol - it has an offset. So rebuilt |
| 1848 | that here */ |
| 1849 | #ifdef R_IHCONST |
| 1850 | if (q->howto->type == R_IHCONST) |
| 1851 | n.r_symndx = q->addend; |
| 1852 | else |
| 1853 | #endif |
| 1854 | |
| 1855 | |
| 1856 | if (q->sym_ptr_ptr) |
| 1857 | { |
| 1858 | if (q->sym_ptr_ptr == bfd_abs_section.symbol_ptr_ptr) |
| 1859 | { |
| 1860 | /* This is a relocation relative to the absolute symbol */ |
| 1861 | n.r_symndx = -1; |
| 1862 | } |
| 1863 | else |
| 1864 | { |
| 1865 | n.r_symndx = get_index((*(q->sym_ptr_ptr))); |
| 1866 | /* Take notice if the symbol reloc points to a symbol we don't have |
| 1867 | in our symbol table. What should we do for this?? */ |
| 1868 | if (n.r_symndx > obj_conv_table_size (abfd)) |
| 1869 | abort (); |
| 1870 | } |
| 1871 | |
| 1872 | |
| 1873 | } |
| 1874 | |
| 1875 | #ifdef SELECT_RELOC |
| 1876 | /* Work out reloc type from what is required */ |
| 1877 | SELECT_RELOC(n.r_type, q->howto); |
| 1878 | #else |
| 1879 | n.r_type = q->howto->type; |
| 1880 | #endif |
| 1881 | coff_swap_reloc_out(abfd, &n, &dst); |
| 1882 | bfd_write((PTR) &dst, 1, RELSZ, abfd); |
| 1883 | } |
| 1884 | } |
| 1885 | } |
| 1886 | #endif /* NO_COFF_SYMBOLS */ |
| 1887 | |
| 1888 | #ifndef NO_COFF_LINENOS |
| 1889 | |
| 1890 | static void |
| 1891 | DEFUN(coff_write_linenumbers,(abfd), |
| 1892 | bfd *abfd) |
| 1893 | { |
| 1894 | asection *s; |
| 1895 | for (s = abfd->sections; s != (asection *) NULL; s = s->next) { |
| 1896 | if (s->lineno_count) { |
| 1897 | asymbol **q = abfd->outsymbols; |
| 1898 | bfd_seek(abfd, s->line_filepos, SEEK_SET); |
| 1899 | /* Find all the linenumbers in this section */ |
| 1900 | while (*q) { |
| 1901 | asymbol *p = *q; |
| 1902 | alent *l = BFD_SEND(p->the_bfd, _get_lineno, (p->the_bfd, p)); |
| 1903 | if (l) { |
| 1904 | /* Found a linenumber entry, output */ |
| 1905 | struct internal_lineno out; |
| 1906 | LINENO buff; |
| 1907 | memset( (PTR)&out, 0, sizeof(out)); |
| 1908 | out.l_lnno = 0; |
| 1909 | out.l_addr.l_symndx = l->u.offset; |
| 1910 | coff_swap_lineno_out(abfd, &out, &buff); |
| 1911 | bfd_write((PTR) &buff, 1, LINESZ, abfd); |
| 1912 | l++; |
| 1913 | while (l->line_number) { |
| 1914 | out.l_lnno = l->line_number; |
| 1915 | out.l_addr.l_symndx = l->u.offset; |
| 1916 | coff_swap_lineno_out(abfd, &out, &buff); |
| 1917 | bfd_write((PTR) &buff, 1, LINESZ, abfd); |
| 1918 | l++; |
| 1919 | } |
| 1920 | } |
| 1921 | q++; |
| 1922 | } |
| 1923 | } |
| 1924 | } |
| 1925 | } |
| 1926 | |
| 1927 | static alent * |
| 1928 | DEFUN(coff_get_lineno,(ignore_abfd, symbol), |
| 1929 | bfd *ignore_abfd AND |
| 1930 | asymbol *symbol) |
| 1931 | { |
| 1932 | return coffsymbol(symbol)->lineno; |
| 1933 | } |
| 1934 | |
| 1935 | #endif /* NO_COFF_LINENOS */ |
| 1936 | |
| 1937 | static asymbol * |
| 1938 | coff_make_empty_symbol(abfd) |
| 1939 | bfd *abfd; |
| 1940 | { |
| 1941 | coff_symbol_type *new = (coff_symbol_type *) bfd_alloc(abfd, sizeof(coff_symbol_type)); |
| 1942 | if (new == NULL) { |
| 1943 | bfd_error = no_memory; |
| 1944 | return (NULL); |
| 1945 | } /* on error */ |
| 1946 | new->symbol.section = 0; |
| 1947 | new->native = 0; |
| 1948 | new->lineno = (alent *) NULL; |
| 1949 | new->done_lineno = false; |
| 1950 | new->symbol.the_bfd = abfd; |
| 1951 | return &new->symbol; |
| 1952 | } |
| 1953 | |
| 1954 | #ifndef NO_COFF_SYMBOLS |
| 1955 | |
| 1956 | static asymbol * |
| 1957 | DEFUN (coff_make_debug_symbol, (abfd, ptr, sz), |
| 1958 | bfd *abfd AND |
| 1959 | PTR ptr AND |
| 1960 | unsigned long sz) |
| 1961 | { |
| 1962 | coff_symbol_type *new = (coff_symbol_type *) bfd_alloc(abfd, sizeof(coff_symbol_type)); |
| 1963 | if (new == NULL) { |
| 1964 | bfd_error = no_memory; |
| 1965 | return (NULL); |
| 1966 | } /* on error */ |
| 1967 | /* @@ This shouldn't be using a constant multiplier. */ |
| 1968 | new->native = (combined_entry_type *) bfd_zalloc (abfd, sizeof (combined_entry_type) * 10); |
| 1969 | new->symbol.section = &bfd_debug_section; |
| 1970 | new->lineno = (alent *) NULL; |
| 1971 | new->done_lineno = false; |
| 1972 | new->symbol.the_bfd = abfd; |
| 1973 | return &new->symbol; |
| 1974 | } |
| 1975 | |
| 1976 | static void |
| 1977 | DEFUN(coff_print_symbol,(ignore_abfd, filep, symbol, how), |
| 1978 | bfd *ignore_abfd AND |
| 1979 | PTR filep AND |
| 1980 | asymbol *symbol AND |
| 1981 | bfd_print_symbol_type how) |
| 1982 | { |
| 1983 | FILE *file = (FILE *)filep; |
| 1984 | switch (how) { |
| 1985 | case bfd_print_symbol_name: |
| 1986 | fprintf(file, "%s", symbol->name); |
| 1987 | break; |
| 1988 | case bfd_print_symbol_more: |
| 1989 | fprintf(file, "coff %lx %lx", (unsigned long) coffsymbol(symbol)->native, |
| 1990 | (unsigned long) coffsymbol(symbol)->lineno); |
| 1991 | break; |
| 1992 | case bfd_print_symbol_nm: |
| 1993 | |
| 1994 | { |
| 1995 | CONST char *section_name = symbol->section->name; |
| 1996 | bfd_print_symbol_vandf((PTR) file, symbol); |
| 1997 | |
| 1998 | |
| 1999 | fprintf(file, " %-5s %s %s %s", |
| 2000 | section_name, |
| 2001 | coffsymbol(symbol)->native ? "n" : "g", |
| 2002 | coffsymbol(symbol)->lineno ? "l" : " ", |
| 2003 | symbol->name); |
| 2004 | } |
| 2005 | |
| 2006 | |
| 2007 | break; |
| 2008 | case bfd_print_symbol_all: |
| 2009 | /* Print out the symbols in a reasonable way */ |
| 2010 | { |
| 2011 | CONST char *section_name = symbol->section->name; |
| 2012 | |
| 2013 | |
| 2014 | if (coffsymbol(symbol)->native) |
| 2015 | { |
| 2016 | unsigned int aux; |
| 2017 | combined_entry_type *combined = coffsymbol(symbol)->native; |
| 2018 | combined_entry_type *root = obj_raw_syments(ignore_abfd); |
| 2019 | |
| 2020 | fprintf(file,"[%3d]", |
| 2021 | combined - root); |
| 2022 | |
| 2023 | |
| 2024 | fprintf(file, "(sc %2d)(fl%4x)(ty%3x)(sc%3d) nx(%d) %08x %s", |
| 2025 | combined->u.syment.n_scnum, |
| 2026 | combined->u.syment.n_flags, |
| 2027 | combined->u.syment.n_type, |
| 2028 | combined->u.syment.n_sclass, |
| 2029 | combined->u.syment.n_numaux, |
| 2030 | combined->u.syment.n_value, |
| 2031 | symbol->name |
| 2032 | ); |
| 2033 | for (aux = 0; aux < combined->u.syment.n_numaux; aux++) |
| 2034 | { |
| 2035 | fprintf(file,"\n"); |
| 2036 | switch (combined->u.syment.n_sclass) { |
| 2037 | case C_FILE: |
| 2038 | fprintf(file, "File "); |
| 2039 | break; |
| 2040 | default: |
| 2041 | fprintf(file, "AUX lnno %x size %x tagndx %x", |
| 2042 | combined[aux+1].u.auxent.x_sym.x_misc.x_lnsz.x_lnno, |
| 2043 | combined[aux+1].u.auxent.x_sym.x_misc.x_lnsz.x_size, |
| 2044 | combined[aux+1].u.auxent.x_sym.x_tagndx.l); |
| 2045 | break; |
| 2046 | |
| 2047 | } |
| 2048 | |
| 2049 | } |
| 2050 | |
| 2051 | { |
| 2052 | struct lineno_cache_entry *l = coffsymbol(symbol)->lineno; |
| 2053 | if (l) |
| 2054 | { |
| 2055 | printf("\n%s :", l->u.sym->name); |
| 2056 | l++; |
| 2057 | while (l->line_number) |
| 2058 | { |
| 2059 | printf("\n%4d : %x", |
| 2060 | l->line_number, |
| 2061 | l->u.offset); |
| 2062 | l++; |
| 2063 | |
| 2064 | } |
| 2065 | } |
| 2066 | } |
| 2067 | |
| 2068 | |
| 2069 | |
| 2070 | } |
| 2071 | |
| 2072 | else { |
| 2073 | bfd_print_symbol_vandf((PTR) file, symbol); |
| 2074 | fprintf(file, " %-5s %s %s %s", |
| 2075 | section_name, |
| 2076 | coffsymbol(symbol)->native ? "n" : "g", |
| 2077 | coffsymbol(symbol)->lineno ? "l" : " ", |
| 2078 | symbol->name); |
| 2079 | } |
| 2080 | |
| 2081 | } |
| 2082 | |
| 2083 | } |
| 2084 | } |
| 2085 | |
| 2086 | #endif /* NO_COFF_SYMBOLS */ |
| 2087 | |
| 2088 | /* Set flags and magic number of a coff file from architecture and machine |
| 2089 | type. Result is true if we can represent the arch&type, false if not. */ |
| 2090 | |
| 2091 | static boolean |
| 2092 | DEFUN(coff_set_flags,(abfd, magicp, flagsp), |
| 2093 | bfd *abfd AND |
| 2094 | unsigned *magicp AND |
| 2095 | unsigned short *flagsp) |
| 2096 | { |
| 2097 | switch (bfd_get_arch(abfd)) { |
| 2098 | #ifdef Z8KMAGIC |
| 2099 | case bfd_arch_z8k: |
| 2100 | *magicp = Z8KMAGIC; |
| 2101 | switch (bfd_get_mach(abfd)) |
| 2102 | { |
| 2103 | case bfd_mach_z8001: |
| 2104 | *flagsp = F_Z8001; |
| 2105 | break; |
| 2106 | case bfd_mach_z8002: |
| 2107 | *flagsp = F_Z8002; |
| 2108 | break; |
| 2109 | default: |
| 2110 | return false; |
| 2111 | } |
| 2112 | return true; |
| 2113 | #endif |
| 2114 | #ifdef I960ROMAGIC |
| 2115 | |
| 2116 | case bfd_arch_i960: |
| 2117 | |
| 2118 | { |
| 2119 | unsigned flags; |
| 2120 | *magicp = I960ROMAGIC; |
| 2121 | /* |
| 2122 | ((bfd_get_file_flags(abfd) & WP_TEXT) ? I960ROMAGIC : |
| 2123 | I960RWMAGIC); FIXME??? |
| 2124 | */ |
| 2125 | switch (bfd_get_mach(abfd)) { |
| 2126 | case bfd_mach_i960_core: |
| 2127 | flags = F_I960CORE; |
| 2128 | break; |
| 2129 | case bfd_mach_i960_kb_sb: |
| 2130 | flags = F_I960KB; |
| 2131 | break; |
| 2132 | case bfd_mach_i960_mc: |
| 2133 | flags = F_I960MC; |
| 2134 | break; |
| 2135 | case bfd_mach_i960_xa: |
| 2136 | flags = F_I960XA; |
| 2137 | break; |
| 2138 | case bfd_mach_i960_ca: |
| 2139 | flags = F_I960CA; |
| 2140 | break; |
| 2141 | case bfd_mach_i960_ka_sa: |
| 2142 | flags = F_I960KA; |
| 2143 | break; |
| 2144 | default: |
| 2145 | return false; |
| 2146 | } |
| 2147 | *flagsp = flags; |
| 2148 | return true; |
| 2149 | } |
| 2150 | break; |
| 2151 | #endif |
| 2152 | #ifdef MIPS |
| 2153 | case bfd_arch_mips: |
| 2154 | *magicp = MIPS_MAGIC_2; |
| 2155 | return true; |
| 2156 | break; |
| 2157 | #endif |
| 2158 | #ifdef I386MAGIC |
| 2159 | case bfd_arch_i386: |
| 2160 | *magicp = I386MAGIC; |
| 2161 | return true; |
| 2162 | break; |
| 2163 | #endif |
| 2164 | #ifdef MC68MAGIC |
| 2165 | case bfd_arch_m68k: |
| 2166 | *magicp = MC68MAGIC; |
| 2167 | return true; |
| 2168 | break; |
| 2169 | #endif |
| 2170 | |
| 2171 | #ifdef MC88MAGIC |
| 2172 | case bfd_arch_m88k: |
| 2173 | *magicp = MC88OMAGIC; |
| 2174 | return true; |
| 2175 | break; |
| 2176 | #endif |
| 2177 | #ifdef H8300MAGIC |
| 2178 | case bfd_arch_h8300: |
| 2179 | *magicp = H8300MAGIC; |
| 2180 | return true; |
| 2181 | break; |
| 2182 | #endif |
| 2183 | #ifdef A29K_MAGIC_BIG |
| 2184 | case bfd_arch_a29k: |
| 2185 | if (abfd->xvec->byteorder_big_p) |
| 2186 | *magicp = A29K_MAGIC_BIG; |
| 2187 | else |
| 2188 | *magicp = A29K_MAGIC_LITTLE; |
| 2189 | return true; |
| 2190 | break; |
| 2191 | #endif |
| 2192 | |
| 2193 | #ifdef WE32KMAGIC |
| 2194 | case bfd_arch_we32k: |
| 2195 | *magicp = WE32KMAGIC; |
| 2196 | return true; |
| 2197 | break; |
| 2198 | #endif |
| 2199 | |
| 2200 | #ifdef U802TOCMAGIC |
| 2201 | case bfd_arch_rs6000: |
| 2202 | *magicp = U802TOCMAGIC; |
| 2203 | return true; |
| 2204 | break; |
| 2205 | #endif |
| 2206 | |
| 2207 | default: /* Unknown architecture */ |
| 2208 | /* return false; -- fall through to "return false" below, to avoid |
| 2209 | "statement never reached" errors on the one below. */ |
| 2210 | break; |
| 2211 | } |
| 2212 | |
| 2213 | return false; |
| 2214 | } |
| 2215 | |
| 2216 | |
| 2217 | static boolean |
| 2218 | DEFUN(coff_set_arch_mach,(abfd, arch, machine), |
| 2219 | bfd *abfd AND |
| 2220 | enum bfd_architecture arch AND |
| 2221 | unsigned long machine) |
| 2222 | { |
| 2223 | unsigned dummy1; |
| 2224 | unsigned short dummy2; |
| 2225 | bfd_default_set_arch_mach(abfd, arch, machine); |
| 2226 | |
| 2227 | if (arch != bfd_arch_unknown && |
| 2228 | coff_set_flags(abfd, &dummy1, &dummy2) != true) |
| 2229 | return false; /* We can't represent this type */ |
| 2230 | return true; /* We're easy ... */ |
| 2231 | } |
| 2232 | |
| 2233 | |
| 2234 | /* Calculate the file position for each section. */ |
| 2235 | |
| 2236 | static void |
| 2237 | DEFUN(coff_compute_section_file_positions,(abfd), |
| 2238 | bfd *abfd) |
| 2239 | { |
| 2240 | asection *current; |
| 2241 | asection *previous = (asection *)NULL; |
| 2242 | file_ptr sofar = FILHSZ; |
| 2243 | file_ptr old_sofar; |
| 2244 | if (bfd_get_start_address(abfd)) |
| 2245 | { |
| 2246 | /* A start address may have been added to the original file. In this |
| 2247 | case it will need an optional header to record it. */ |
| 2248 | abfd->flags |= EXEC_P; |
| 2249 | } |
| 2250 | |
| 2251 | if (abfd->flags & EXEC_P) |
| 2252 | sofar += AOUTSZ; |
| 2253 | |
| 2254 | sofar += abfd->section_count * SCNHSZ; |
| 2255 | for (current = abfd->sections; |
| 2256 | current != (asection *)NULL; |
| 2257 | current = current->next) { |
| 2258 | |
| 2259 | /* Only deal with sections which have contents */ |
| 2260 | if (!(current->flags & SEC_HAS_CONTENTS)) |
| 2261 | continue; |
| 2262 | |
| 2263 | /* Align the sections in the file to the same boundary on |
| 2264 | which they are aligned in virtual memory. I960 doesn't |
| 2265 | do this (FIXME) so we can stay in sync with Intel. 960 |
| 2266 | doesn't yet page from files... */ |
| 2267 | #ifndef I960 |
| 2268 | { |
| 2269 | /* make sure this section is aligned on the right boundary - by |
| 2270 | padding the previous section up if necessary */ |
| 2271 | |
| 2272 | old_sofar= sofar; |
| 2273 | sofar = BFD_ALIGN(sofar, 1 << current->alignment_power); |
| 2274 | if (previous != (asection *)NULL) { |
| 2275 | previous->_raw_size += sofar - old_sofar; |
| 2276 | } |
| 2277 | } |
| 2278 | |
| 2279 | #endif |
| 2280 | /* FIXME, in demand paged files, the low order bits of the file |
| 2281 | offset must match the low order bits of the virtual address. |
| 2282 | "Low order" is apparently implementation defined. Add code |
| 2283 | here to round sofar up to match the virtual address. */ |
| 2284 | |
| 2285 | current->filepos = sofar; |
| 2286 | |
| 2287 | sofar += current->_raw_size; |
| 2288 | #ifndef I960 |
| 2289 | /* make sure that this section is of the right size too */ |
| 2290 | old_sofar = sofar; |
| 2291 | sofar = BFD_ALIGN(sofar, 1 << current->alignment_power); |
| 2292 | current->_raw_size += sofar - old_sofar ; |
| 2293 | #endif |
| 2294 | |
| 2295 | previous = current; |
| 2296 | } |
| 2297 | obj_relocbase(abfd) = sofar; |
| 2298 | } |
| 2299 | |
| 2300 | #ifndef NO_COFF_SYMBOLS |
| 2301 | static asymbol * |
| 2302 | coff_section_symbol (abfd, name) |
| 2303 | bfd *abfd; |
| 2304 | char *name; |
| 2305 | { |
| 2306 | asection *sec = bfd_make_section_old_way (abfd, name); |
| 2307 | asymbol *sym; |
| 2308 | combined_entry_type *csym; |
| 2309 | |
| 2310 | sym = sec->symbol; |
| 2311 | if (coff_symbol_from (abfd, sym)) |
| 2312 | csym = coff_symbol_from (abfd, sym)->native; |
| 2313 | else |
| 2314 | csym = 0; |
| 2315 | /* Make sure back-end COFF stuff is there. */ |
| 2316 | if (csym == 0) |
| 2317 | { |
| 2318 | struct foo { |
| 2319 | coff_symbol_type sym; |
| 2320 | /* @@FIXME This shouldn't use a fixed size!! */ |
| 2321 | combined_entry_type e[10]; |
| 2322 | }; |
| 2323 | struct foo *f; |
| 2324 | f = (struct foo *) bfd_alloc_by_size_t (abfd, sizeof (*f)); |
| 2325 | memset ((char *) f, 0, sizeof (*f)); |
| 2326 | coff_symbol_from (abfd, sym)->native = csym = f->e; |
| 2327 | } |
| 2328 | csym[0].u.syment.n_sclass = C_STAT; |
| 2329 | csym[0].u.syment.n_numaux = 1; |
| 2330 | /* SF_SET_STATICS (sym); @@ ??? */ |
| 2331 | if (sec) |
| 2332 | { |
| 2333 | csym[1].u.auxent.x_scn.x_scnlen = sec->_raw_size; |
| 2334 | csym[1].u.auxent.x_scn.x_nreloc = sec->reloc_count; |
| 2335 | csym[1].u.auxent.x_scn.x_nlinno = sec->lineno_count; |
| 2336 | } |
| 2337 | else |
| 2338 | { |
| 2339 | csym[1].u.auxent.x_scn.x_scnlen = 0; |
| 2340 | csym[1].u.auxent.x_scn.x_nreloc = 0; |
| 2341 | csym[1].u.auxent.x_scn.x_nlinno = 0; |
| 2342 | } |
| 2343 | return sym; |
| 2344 | } |
| 2345 | |
| 2346 | /* If .file, .text, .data, .bss symbols are missing, add them. */ |
| 2347 | /* @@ Should we only be adding missing symbols, or overriding the aux |
| 2348 | values for existing section symbols? */ |
| 2349 | static void |
| 2350 | coff_add_missing_symbols (abfd) |
| 2351 | bfd *abfd; |
| 2352 | { |
| 2353 | unsigned int nsyms = bfd_get_symcount (abfd); |
| 2354 | asymbol **sympp = abfd->outsymbols; |
| 2355 | asymbol **sympp2; |
| 2356 | unsigned int i; |
| 2357 | int need_text = 1, need_data = 1, need_bss = 1, need_file = 1; |
| 2358 | |
| 2359 | for (i = 0; i < nsyms; i++) |
| 2360 | { |
| 2361 | coff_symbol_type *csym = coff_symbol_from (abfd, sympp[i]); |
| 2362 | CONST char *name; |
| 2363 | if (csym) |
| 2364 | { |
| 2365 | /* only do this if there is a coff representation of the input |
| 2366 | symbol */ |
| 2367 | if (csym->native && csym->native->u.syment.n_sclass == C_FILE) |
| 2368 | { |
| 2369 | need_file = 0; |
| 2370 | continue; |
| 2371 | } |
| 2372 | name = csym->symbol.name; |
| 2373 | if (!name) |
| 2374 | continue; |
| 2375 | if (!strcmp (name, _TEXT)) |
| 2376 | need_text = 0; |
| 2377 | else if (!strcmp (name, _DATA)) |
| 2378 | need_data = 0; |
| 2379 | else if (!strcmp (name, _BSS)) |
| 2380 | need_bss = 0; |
| 2381 | } |
| 2382 | } |
| 2383 | /* Now i == bfd_get_symcount (abfd). */ |
| 2384 | /* @@ For now, don't deal with .file symbol. */ |
| 2385 | need_file = 0; |
| 2386 | |
| 2387 | if (!need_text && !need_data && !need_bss && !need_file) |
| 2388 | return; |
| 2389 | nsyms += need_text + need_data + need_bss + need_file; |
| 2390 | sympp2 = (asymbol**) bfd_alloc_by_size_t (abfd, nsyms * sizeof (asymbol *)); |
| 2391 | memcpy (sympp2, sympp, i * sizeof (asymbol *)); |
| 2392 | if (need_file) |
| 2393 | { |
| 2394 | /* @@ Generate fake .file symbol, in sympp2[i], and increment i. */ |
| 2395 | abort (); |
| 2396 | } |
| 2397 | if (need_text) |
| 2398 | sympp2[i++] = coff_section_symbol (abfd, _TEXT); |
| 2399 | if (need_data) |
| 2400 | sympp2[i++] = coff_section_symbol (abfd, _DATA); |
| 2401 | if (need_bss) |
| 2402 | sympp2[i++] = coff_section_symbol (abfd, _BSS); |
| 2403 | BFD_ASSERT (i == nsyms); |
| 2404 | bfd_set_symtab (abfd, sympp2, nsyms); |
| 2405 | } |
| 2406 | #endif /* NO_COFF_SYMBOLS */ |
| 2407 | |
| 2408 | /* SUPPRESS 558 */ |
| 2409 | /* SUPPRESS 529 */ |
| 2410 | static boolean |
| 2411 | DEFUN(coff_write_object_contents,(abfd), |
| 2412 | bfd *abfd) |
| 2413 | { |
| 2414 | asection *current; |
| 2415 | unsigned int count; |
| 2416 | |
| 2417 | boolean hasrelocs = false; |
| 2418 | boolean haslinno = false; |
| 2419 | file_ptr reloc_base; |
| 2420 | file_ptr lineno_base; |
| 2421 | file_ptr sym_base; |
| 2422 | file_ptr scn_base; |
| 2423 | file_ptr data_base; |
| 2424 | unsigned long reloc_size = 0; |
| 2425 | unsigned long lnno_size = 0; |
| 2426 | asection *text_sec = NULL; |
| 2427 | asection *data_sec = NULL; |
| 2428 | asection *bss_sec = NULL; |
| 2429 | |
| 2430 | struct internal_filehdr internal_f; |
| 2431 | struct internal_aouthdr internal_a; |
| 2432 | |
| 2433 | |
| 2434 | bfd_error = system_call_error; |
| 2435 | /* Number the output sections, starting from one on the first section |
| 2436 | with a name which doesn't start with a *. |
| 2437 | @@ The code doesn't make this check. Is it supposed to be done, |
| 2438 | or isn't it?? */ |
| 2439 | count = 1; |
| 2440 | for (current = abfd->sections; current != (asection *)NULL; |
| 2441 | current = current->next) |
| 2442 | { |
| 2443 | current->target_index = count; |
| 2444 | count++; |
| 2445 | } |
| 2446 | |
| 2447 | if(abfd->output_has_begun == false) { |
| 2448 | coff_compute_section_file_positions(abfd); |
| 2449 | } |
| 2450 | |
| 2451 | if (abfd->sections != (asection *)NULL) { |
| 2452 | scn_base = abfd->sections->filepos; |
| 2453 | } |
| 2454 | else { |
| 2455 | scn_base = 0; |
| 2456 | } |
| 2457 | if (bfd_seek(abfd, scn_base, SEEK_SET) != 0) |
| 2458 | return false; |
| 2459 | reloc_base = obj_relocbase(abfd); |
| 2460 | |
| 2461 | /* Make a pass through the symbol table to count line number entries and |
| 2462 | put them into the correct asections */ |
| 2463 | |
| 2464 | #ifndef NO_COFF_LINENOS |
| 2465 | coff_count_linenumbers(abfd); |
| 2466 | #endif |
| 2467 | data_base = scn_base; |
| 2468 | |
| 2469 | /* Work out the size of the reloc and linno areas */ |
| 2470 | |
| 2471 | for (current = abfd->sections; current != NULL; current = |
| 2472 | current->next) |
| 2473 | { |
| 2474 | /* We give section headers to +ve indexes */ |
| 2475 | if (current->target_index > 0) |
| 2476 | { |
| 2477 | |
| 2478 | reloc_size += current->reloc_count * RELSZ; |
| 2479 | #ifndef NO_COFF_LINENOS |
| 2480 | lnno_size += current->lineno_count * LINESZ; |
| 2481 | #endif |
| 2482 | data_base += SCNHSZ; |
| 2483 | } |
| 2484 | |
| 2485 | } |
| 2486 | |
| 2487 | lineno_base = reloc_base + reloc_size; |
| 2488 | sym_base = lineno_base + lnno_size; |
| 2489 | |
| 2490 | /* Indicate in each section->line_filepos its actual file address */ |
| 2491 | for (current = abfd->sections; current != NULL; current = |
| 2492 | current->next) |
| 2493 | { |
| 2494 | if (current->target_index > 0) |
| 2495 | { |
| 2496 | |
| 2497 | if (current->lineno_count) { |
| 2498 | current->line_filepos = lineno_base; |
| 2499 | current->moving_line_filepos = lineno_base; |
| 2500 | #ifndef NO_COFF_LINENOS |
| 2501 | lineno_base += current->lineno_count * LINESZ; |
| 2502 | #endif |
| 2503 | } |
| 2504 | else { |
| 2505 | current->line_filepos = 0; |
| 2506 | } |
| 2507 | if (current->reloc_count) { |
| 2508 | current->rel_filepos = reloc_base; |
| 2509 | reloc_base += current->reloc_count * RELSZ; |
| 2510 | } |
| 2511 | else { |
| 2512 | current->rel_filepos = 0; |
| 2513 | } |
| 2514 | } |
| 2515 | } |
| 2516 | |
| 2517 | |
| 2518 | |
| 2519 | /* Write section headers to the file. */ |
| 2520 | internal_f.f_nscns = 0; |
| 2521 | bfd_seek(abfd, |
| 2522 | (file_ptr) ((abfd->flags & EXEC_P) ? |
| 2523 | (FILHSZ + AOUTSZ) : FILHSZ), |
| 2524 | SEEK_SET); |
| 2525 | |
| 2526 | { |
| 2527 | #if 0 |
| 2528 | unsigned int pad = abfd->flags & D_PAGED ? data_base : 0; |
| 2529 | #endif |
| 2530 | unsigned int pad = 0; |
| 2531 | |
| 2532 | for (current = abfd->sections; |
| 2533 | current != NULL; |
| 2534 | current = current->next) { |
| 2535 | struct internal_scnhdr section; |
| 2536 | if (current->target_index > 0) |
| 2537 | { |
| 2538 | internal_f.f_nscns ++; |
| 2539 | strncpy(&(section.s_name[0]), current->name, 8); |
| 2540 | #ifdef _LIB |
| 2541 | /* Always set s_vaddr of .lib to 0. This is right for SVR3.2 |
| 2542 | Ian Taylor <ian@cygnus.com>. */ |
| 2543 | if (strcmp (current->name, _LIB) == 0) |
| 2544 | section.s_vaddr = 0; |
| 2545 | else |
| 2546 | #endif |
| 2547 | section.s_vaddr = current->vma + pad; |
| 2548 | section.s_paddr = current->vma + pad; |
| 2549 | section.s_size = current->_raw_size - pad; |
| 2550 | /* |
| 2551 | If this section has no size or is unloadable then the scnptr |
| 2552 | will be 0 too |
| 2553 | */ |
| 2554 | if (current->_raw_size - pad == 0 || |
| 2555 | (current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) { |
| 2556 | section.s_scnptr = 0; |
| 2557 | } |
| 2558 | else { |
| 2559 | section.s_scnptr = current->filepos; |
| 2560 | } |
| 2561 | section.s_relptr = current->rel_filepos; |
| 2562 | section.s_lnnoptr = current->line_filepos; |
| 2563 | section.s_nreloc = current->reloc_count; |
| 2564 | section.s_nlnno = current->lineno_count; |
| 2565 | if (current->reloc_count != 0) |
| 2566 | hasrelocs = true; |
| 2567 | if (current->lineno_count != 0) |
| 2568 | haslinno = true; |
| 2569 | |
| 2570 | section.s_flags = sec_to_styp_flags(current->name,current->flags); |
| 2571 | |
| 2572 | if (!strcmp(current->name, _TEXT)) { |
| 2573 | text_sec = current; |
| 2574 | } else if (!strcmp(current->name, _DATA)) { |
| 2575 | data_sec = current; |
| 2576 | #ifdef TWO_DATA_SECS |
| 2577 | } else if (!strcmp(current->name, ".data2")) { |
| 2578 | data_sec = current; |
| 2579 | #endif /* TWO_DATA_SECS */ |
| 2580 | } else if (!strcmp(current->name, _BSS)) { |
| 2581 | bss_sec = current; |
| 2582 | } |
| 2583 | |
| 2584 | #ifdef I960 |
| 2585 | section.s_align = (current->alignment_power |
| 2586 | ? 1 << current->alignment_power |
| 2587 | : 0); |
| 2588 | |
| 2589 | #endif |
| 2590 | { |
| 2591 | SCNHDR buff; |
| 2592 | |
| 2593 | coff_swap_scnhdr_out(abfd, §ion, &buff); |
| 2594 | bfd_write((PTR) (&buff), 1, SCNHSZ, abfd); |
| 2595 | |
| 2596 | } |
| 2597 | |
| 2598 | pad = 0; |
| 2599 | } |
| 2600 | } |
| 2601 | } |
| 2602 | |
| 2603 | |
| 2604 | /* OK, now set up the filehdr... */ |
| 2605 | |
| 2606 | /* Don't include the internal abs section in the section count */ |
| 2607 | |
| 2608 | /* |
| 2609 | We will NOT put a fucking timestamp in the header here. Every time you |
| 2610 | put it back, I will come in and take it out again. I'm sorry. This |
| 2611 | field does not belong here. We fill it with a 0 so it compares the |
| 2612 | same but is not a reasonable time. -- gnu@cygnus.com |
| 2613 | */ |
| 2614 | internal_f.f_timdat = 0; |
| 2615 | |
| 2616 | if (bfd_get_symcount(abfd) != 0) |
| 2617 | internal_f.f_symptr = sym_base; |
| 2618 | else |
| 2619 | internal_f.f_symptr = 0; |
| 2620 | |
| 2621 | internal_f.f_flags = 0; |
| 2622 | |
| 2623 | if (abfd->flags & EXEC_P) |
| 2624 | internal_f.f_opthdr = AOUTSZ; |
| 2625 | else |
| 2626 | internal_f.f_opthdr = 0; |
| 2627 | |
| 2628 | if (!hasrelocs) |
| 2629 | internal_f.f_flags |= F_RELFLG; |
| 2630 | if (!haslinno) |
| 2631 | internal_f.f_flags |= F_LNNO; |
| 2632 | if (0 == bfd_get_symcount(abfd)) |
| 2633 | internal_f.f_flags |= F_LSYMS; |
| 2634 | if (abfd->flags & EXEC_P) |
| 2635 | internal_f.f_flags |= F_EXEC; |
| 2636 | |
| 2637 | if (!abfd->xvec->byteorder_big_p) |
| 2638 | internal_f.f_flags |= F_AR32WR; |
| 2639 | else |
| 2640 | internal_f.f_flags |= F_AR32W; |
| 2641 | |
| 2642 | /* |
| 2643 | FIXME, should do something about the other byte orders and |
| 2644 | architectures. |
| 2645 | */ |
| 2646 | |
| 2647 | /* Set up architecture-dependent stuff */ |
| 2648 | |
| 2649 | { unsigned int magic = 0; |
| 2650 | unsigned short flags = 0; |
| 2651 | coff_set_flags(abfd, &magic, &flags); |
| 2652 | internal_f.f_magic = magic; |
| 2653 | internal_f.f_flags |= flags; |
| 2654 | /* ...and the "opt"hdr... */ |
| 2655 | |
| 2656 | #ifdef A29K |
| 2657 | # ifdef ULTRA3 /* NYU's machine */ |
| 2658 | /* FIXME: This is a bogus check. I really want to see if there |
| 2659 | * is a .shbss or a .shdata section, if so then set the magic |
| 2660 | * number to indicate a shared data executable. |
| 2661 | */ |
| 2662 | if (internal_f.f_nscns >= 7) |
| 2663 | internal_a.magic = SHMAGIC; /* Shared magic */ |
| 2664 | else |
| 2665 | # endif /* ULTRA3 */ |
| 2666 | internal_a.magic = NMAGIC; /* Assume separate i/d */ |
| 2667 | #define __A_MAGIC_SET__ |
| 2668 | #endif /* A29K */ |
| 2669 | #ifdef I960 |
| 2670 | internal_a.magic = (magic == I960ROMAGIC ? NMAGIC : OMAGIC); |
| 2671 | #define __A_MAGIC_SET__ |
| 2672 | #endif /* I960 */ |
| 2673 | #if M88 |
| 2674 | #define __A_MAGIC_SET__ |
| 2675 | internal_a.magic = PAGEMAGICBCS; |
| 2676 | #endif /* M88 */ |
| 2677 | |
| 2678 | #if M68 || MIPS || WE32K |
| 2679 | #define __A_MAGIC_SET__ |
| 2680 | /* Never was anything here for the 68k */ |
| 2681 | #endif /* M68 || MIPS || WE32K */ |
| 2682 | |
| 2683 | #if I386 |
| 2684 | # define __A_MAGIC_SET__ |
| 2685 | internal_a.magic = ZMAGIC; |
| 2686 | #endif /* I386 */ |
| 2687 | |
| 2688 | #if RS6000COFF_C |
| 2689 | #define __A_MAGIC_SET__ |
| 2690 | internal_a.magic = (abfd->flags & D_PAGED)? RS6K_AOUTHDR_ZMAGIC: |
| 2691 | (abfd->flags & WP_TEXT)? RS6K_AOUTHDR_NMAGIC: |
| 2692 | RS6K_AOUTHDR_OMAGIC; |
| 2693 | #endif |
| 2694 | |
| 2695 | #ifndef __A_MAGIC_SET__ |
| 2696 | # include "Your aouthdr magic number is not being set!" |
| 2697 | #else |
| 2698 | # undef __A_MAGIC_SET__ |
| 2699 | #endif |
| 2700 | } |
| 2701 | /* Now should write relocs, strings, syms */ |
| 2702 | obj_sym_filepos(abfd) = sym_base; |
| 2703 | |
| 2704 | #ifndef NO_COFF_SYMBOLS |
| 2705 | if (bfd_get_symcount(abfd) != 0) { |
| 2706 | coff_add_missing_symbols (abfd); |
| 2707 | coff_renumber_symbols(abfd); |
| 2708 | coff_mangle_symbols(abfd); |
| 2709 | coff_write_symbols(abfd); |
| 2710 | coff_write_linenumbers(abfd); |
| 2711 | coff_write_relocs(abfd); |
| 2712 | } |
| 2713 | #endif /* NO_COFF_SYMBOLS */ |
| 2714 | if (text_sec) { |
| 2715 | internal_a.tsize = bfd_get_section_size_before_reloc(text_sec); |
| 2716 | internal_a.text_start = internal_a.tsize ? text_sec->vma : 0; |
| 2717 | } |
| 2718 | if (data_sec) { |
| 2719 | internal_a.dsize = bfd_get_section_size_before_reloc(data_sec); |
| 2720 | internal_a.data_start = internal_a.dsize ? data_sec->vma : 0; |
| 2721 | } |
| 2722 | if (bss_sec) { |
| 2723 | internal_a.bsize = bfd_get_section_size_before_reloc(bss_sec); |
| 2724 | } |
| 2725 | |
| 2726 | internal_a.entry = bfd_get_start_address(abfd); |
| 2727 | internal_f.f_nsyms = bfd_get_symcount(abfd); |
| 2728 | |
| 2729 | /* now write them */ |
| 2730 | if (bfd_seek(abfd, (file_ptr) 0, SEEK_SET) != 0) |
| 2731 | return false; |
| 2732 | { |
| 2733 | FILHDR buff; |
| 2734 | coff_swap_filehdr_out(abfd, (PTR)&internal_f, (PTR)&buff); |
| 2735 | bfd_write((PTR) &buff, 1, FILHSZ, abfd); |
| 2736 | } |
| 2737 | if (abfd->flags & EXEC_P) { |
| 2738 | AOUTHDR buff; |
| 2739 | coff_swap_aouthdr_out(abfd, (PTR)&internal_a, (PTR)&buff); |
| 2740 | bfd_write((PTR) &buff, 1, AOUTSZ, abfd); |
| 2741 | } |
| 2742 | return true; |
| 2743 | } |
| 2744 | |
| 2745 | #ifndef NO_COFF_SYMBOLS |
| 2746 | |
| 2747 | /* |
| 2748 | this function transforms the offsets into the symbol table into |
| 2749 | pointers to syments. |
| 2750 | */ |
| 2751 | |
| 2752 | |
| 2753 | static void |
| 2754 | DEFUN(coff_pointerize_aux,(ignore_abfd, table_base, type, class, auxent), |
| 2755 | bfd *ignore_abfd AND |
| 2756 | combined_entry_type *table_base AND |
| 2757 | int type AND |
| 2758 | int class AND |
| 2759 | combined_entry_type *auxent) |
| 2760 | { |
| 2761 | /* Don't bother if this is a file or a section */ |
| 2762 | if (class == C_STAT && type == T_NULL) return; |
| 2763 | if (class == C_FILE) return; |
| 2764 | |
| 2765 | /* Otherwise patch up */ |
| 2766 | if (ISFCN(type) || ISTAG(class) || class == C_BLOCK) { |
| 2767 | auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p = table_base + |
| 2768 | auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l; |
| 2769 | auxent->fix_end = 1; |
| 2770 | } |
| 2771 | if (auxent->u.auxent.x_sym.x_tagndx.l != 0) { |
| 2772 | auxent->u.auxent.x_sym.x_tagndx.p = |
| 2773 | table_base + auxent->u.auxent.x_sym.x_tagndx.l; |
| 2774 | auxent->fix_tag = 1; |
| 2775 | } |
| 2776 | } |
| 2777 | |
| 2778 | #endif /* NO_COFF_SYMBOLS */ |
| 2779 | |
| 2780 | static boolean |
| 2781 | DEFUN(coff_set_section_contents,(abfd, section, location, offset, count), |
| 2782 | bfd *abfd AND |
| 2783 | sec_ptr section AND |
| 2784 | PTR location AND |
| 2785 | file_ptr offset AND |
| 2786 | bfd_size_type count) |
| 2787 | { |
| 2788 | if (abfd->output_has_begun == false) /* set by bfd.c handler */ |
| 2789 | coff_compute_section_file_positions(abfd); |
| 2790 | |
| 2791 | #ifdef _LIB |
| 2792 | /* If this is a .lib section, bump the vma address so that it |
| 2793 | winds up being the number of .lib sections output. This is |
| 2794 | right for SVR3.2. Shared libraries should probably get more |
| 2795 | generic support. Ian Taylor <ian@cygnus.com>. */ |
| 2796 | if (strcmp (section->name, _LIB) == 0) |
| 2797 | ++section->vma; |
| 2798 | #endif |
| 2799 | |
| 2800 | bfd_seek(abfd, (file_ptr) (section->filepos + offset), SEEK_SET); |
| 2801 | |
| 2802 | if (count != 0) { |
| 2803 | return (bfd_write(location, 1, count, abfd) == count) ? true : false; |
| 2804 | } |
| 2805 | return true; |
| 2806 | } |
| 2807 | #if 0 |
| 2808 | static boolean |
| 2809 | coff_close_and_cleanup(abfd) |
| 2810 | bfd *abfd; |
| 2811 | { |
| 2812 | if (!bfd_read_p(abfd)) |
| 2813 | switch (abfd->format) { |
| 2814 | case bfd_archive: |
| 2815 | if (!_bfd_write_archive_contents(abfd)) |
| 2816 | return false; |
| 2817 | break; |
| 2818 | case bfd_object: |
| 2819 | if (!coff_write_object_contents(abfd)) |
| 2820 | return false; |
| 2821 | break; |
| 2822 | default: |
| 2823 | bfd_error = invalid_operation; |
| 2824 | return false; |
| 2825 | } |
| 2826 | |
| 2827 | /* We depend on bfd_close to free all the memory on the obstack. */ |
| 2828 | /* FIXME if bfd_release is not using obstacks! */ |
| 2829 | return true; |
| 2830 | } |
| 2831 | |
| 2832 | #endif |
| 2833 | static PTR |
| 2834 | buy_and_read(abfd, where, seek_direction, size) |
| 2835 | bfd *abfd; |
| 2836 | file_ptr where; |
| 2837 | int seek_direction; |
| 2838 | size_t size; |
| 2839 | { |
| 2840 | PTR area = (PTR) bfd_alloc(abfd, size); |
| 2841 | if (!area) { |
| 2842 | bfd_error = no_memory; |
| 2843 | return (NULL); |
| 2844 | } |
| 2845 | bfd_seek(abfd, where, seek_direction); |
| 2846 | if (bfd_read(area, 1, size, abfd) != size) { |
| 2847 | bfd_error = system_call_error; |
| 2848 | return (NULL); |
| 2849 | } /* on error */ |
| 2850 | return (area); |
| 2851 | } /* buy_and_read() */ |
| 2852 | |
| 2853 | |
| 2854 | #ifndef NO_COFF_SYMBOLS |
| 2855 | |
| 2856 | static char * |
| 2857 | DEFUN(build_string_table,(abfd), |
| 2858 | bfd *abfd) |
| 2859 | { |
| 2860 | char string_table_size_buffer[4]; |
| 2861 | unsigned int string_table_size; |
| 2862 | char *string_table; |
| 2863 | |
| 2864 | /* At this point we should be "seek"'d to the end of the |
| 2865 | symbols === the symbol table size. */ |
| 2866 | if (bfd_read((char *) string_table_size_buffer, |
| 2867 | sizeof(string_table_size_buffer), |
| 2868 | 1, abfd) != sizeof(string_table_size)) { |
| 2869 | bfd_error = system_call_error; |
| 2870 | return (NULL); |
| 2871 | } /* on error */ |
| 2872 | |
| 2873 | string_table_size = bfd_h_get_32(abfd, (bfd_byte *) string_table_size_buffer); |
| 2874 | |
| 2875 | if ((string_table = (PTR) bfd_alloc(abfd, string_table_size -= 4)) == NULL) { |
| 2876 | bfd_error = no_memory; |
| 2877 | return (NULL); |
| 2878 | } /* on mallocation error */ |
| 2879 | if (bfd_read(string_table, string_table_size, 1, abfd) != string_table_size) { |
| 2880 | bfd_error = system_call_error; |
| 2881 | return (NULL); |
| 2882 | } |
| 2883 | return string_table; |
| 2884 | } |
| 2885 | |
| 2886 | /* Allocate space for the ".debug" section, and read it. |
| 2887 | We did not read the debug section until now, because |
| 2888 | we didn't want to go to the trouble until someone needed it. */ |
| 2889 | |
| 2890 | static char * |
| 2891 | DEFUN(build_debug_section,(abfd), |
| 2892 | bfd *abfd) |
| 2893 | { |
| 2894 | char *debug_section; |
| 2895 | long position; |
| 2896 | |
| 2897 | asection *sect = bfd_get_section_by_name (abfd, ".debug"); |
| 2898 | |
| 2899 | if (!sect) { |
| 2900 | bfd_error = no_debug_section; |
| 2901 | return NULL; |
| 2902 | } |
| 2903 | |
| 2904 | debug_section = (PTR) bfd_alloc (abfd, |
| 2905 | bfd_get_section_size_before_reloc (sect)); |
| 2906 | if (debug_section == NULL) { |
| 2907 | bfd_error = no_memory; |
| 2908 | return NULL; |
| 2909 | } |
| 2910 | |
| 2911 | /* Seek to the beginning of the `.debug' section and read it. |
| 2912 | Save the current position first; it is needed by our caller. |
| 2913 | Then read debug section and reset the file pointer. */ |
| 2914 | |
| 2915 | position = bfd_tell (abfd); |
| 2916 | bfd_seek (abfd, sect->filepos, SEEK_SET); |
| 2917 | if (bfd_read (debug_section, |
| 2918 | bfd_get_section_size_before_reloc (sect), 1, abfd) |
| 2919 | != bfd_get_section_size_before_reloc(sect)) { |
| 2920 | bfd_error = system_call_error; |
| 2921 | return NULL; |
| 2922 | } |
| 2923 | bfd_seek (abfd, position, SEEK_SET); |
| 2924 | return debug_section; |
| 2925 | } |
| 2926 | |
| 2927 | |
| 2928 | /* Return a pointer to a malloc'd copy of 'name'. 'name' may not be |
| 2929 | \0-terminated, but will not exceed 'maxlen' characters. The copy *will* |
| 2930 | be \0-terminated. */ |
| 2931 | static char * |
| 2932 | DEFUN(copy_name,(abfd, name, maxlen), |
| 2933 | bfd *abfd AND |
| 2934 | char *name AND |
| 2935 | int maxlen) |
| 2936 | { |
| 2937 | int len; |
| 2938 | char *newname; |
| 2939 | |
| 2940 | for (len = 0; len < maxlen; ++len) { |
| 2941 | if (name[len] == '\0') { |
| 2942 | break; |
| 2943 | } |
| 2944 | } |
| 2945 | |
| 2946 | if ((newname = (PTR) bfd_alloc(abfd, len+1)) == NULL) { |
| 2947 | bfd_error = no_memory; |
| 2948 | return (NULL); |
| 2949 | } |
| 2950 | strncpy(newname, name, len); |
| 2951 | newname[len] = '\0'; |
| 2952 | return newname; |
| 2953 | } |
| 2954 | |
| 2955 | |
| 2956 | /* Read a symbol table into freshly bfd_allocated memory, swap it, and |
| 2957 | knit the symbol names into a normalized form. By normalized here I |
| 2958 | mean that all symbols have an n_offset pointer that points to a null- |
| 2959 | terminated string. */ |
| 2960 | |
| 2961 | #ifndef SYMNAME_IN_DEBUG |
| 2962 | #define SYMNAME_IN_DEBUG(x) 0 |
| 2963 | #endif |
| 2964 | |
| 2965 | static combined_entry_type * |
| 2966 | DEFUN(get_normalized_symtab,(abfd), |
| 2967 | bfd *abfd) |
| 2968 | { |
| 2969 | combined_entry_type *internal; |
| 2970 | combined_entry_type *internal_ptr; |
| 2971 | combined_entry_type *symbol_ptr; |
| 2972 | combined_entry_type *internal_end; |
| 2973 | SYMENT *raw; |
| 2974 | SYMENT *raw_src; |
| 2975 | SYMENT *raw_end; |
| 2976 | char *string_table = NULL; |
| 2977 | char *debug_section = NULL; |
| 2978 | unsigned long size; |
| 2979 | |
| 2980 | unsigned int raw_size; |
| 2981 | if (obj_raw_syments(abfd) != (combined_entry_type *)NULL) { |
| 2982 | return obj_raw_syments(abfd); |
| 2983 | } |
| 2984 | if ((size = bfd_get_symcount(abfd) * sizeof(combined_entry_type)) == 0) { |
| 2985 | bfd_error = no_symbols; |
| 2986 | return (NULL); |
| 2987 | } |
| 2988 | |
| 2989 | internal = (combined_entry_type *)bfd_alloc(abfd, size); |
| 2990 | internal_end = internal + bfd_get_symcount(abfd); |
| 2991 | |
| 2992 | raw_size = bfd_get_symcount(abfd) * SYMESZ; |
| 2993 | raw = (SYMENT *)bfd_alloc(abfd,raw_size); |
| 2994 | |
| 2995 | if (bfd_seek(abfd, obj_sym_filepos(abfd), SEEK_SET) == -1 |
| 2996 | || bfd_read((PTR)raw, raw_size, 1, abfd) != raw_size) { |
| 2997 | bfd_error = system_call_error; |
| 2998 | return (NULL); |
| 2999 | } |
| 3000 | /* mark the end of the symbols */ |
| 3001 | raw_end = raw + bfd_get_symcount(abfd); |
| 3002 | /* |
| 3003 | FIXME SOMEDAY. A string table size of zero is very weird, but |
| 3004 | probably possible. If one shows up, it will probably kill us. |
| 3005 | */ |
| 3006 | |
| 3007 | /* Swap all the raw entries */ |
| 3008 | for (raw_src = raw, internal_ptr = internal; |
| 3009 | raw_src < raw_end; |
| 3010 | raw_src++, internal_ptr++) { |
| 3011 | |
| 3012 | unsigned int i; |
| 3013 | coff_swap_sym_in(abfd, (PTR)raw_src, (PTR)&internal_ptr->u.syment); |
| 3014 | internal_ptr->fix_tag = 0; |
| 3015 | internal_ptr->fix_end = 0; |
| 3016 | symbol_ptr = internal_ptr; |
| 3017 | |
| 3018 | for (i = 0; |
| 3019 | i < symbol_ptr->u.syment.n_numaux; |
| 3020 | i++) |
| 3021 | { |
| 3022 | internal_ptr++; |
| 3023 | raw_src++; |
| 3024 | |
| 3025 | internal_ptr->fix_tag = 0; |
| 3026 | internal_ptr->fix_end = 0; |
| 3027 | coff_swap_aux_in(abfd, (char *)(raw_src), |
| 3028 | symbol_ptr->u.syment.n_type, |
| 3029 | symbol_ptr->u.syment.n_sclass, |
| 3030 | &(internal_ptr->u.auxent)); |
| 3031 | /* Remember that bal entries arn't pointerized */ |
| 3032 | if (i != 1 || symbol_ptr->u.syment.n_sclass != C_LEAFPROC) |
| 3033 | { |
| 3034 | |
| 3035 | coff_pointerize_aux(abfd, |
| 3036 | internal, |
| 3037 | symbol_ptr->u.syment.n_type, |
| 3038 | symbol_ptr->u.syment.n_sclass, |
| 3039 | internal_ptr); |
| 3040 | } |
| 3041 | |
| 3042 | } |
| 3043 | } |
| 3044 | |
| 3045 | /* Free all the raw stuff */ |
| 3046 | bfd_release(abfd, raw); |
| 3047 | |
| 3048 | for (internal_ptr = internal; internal_ptr < internal_end; |
| 3049 | internal_ptr ++) |
| 3050 | { |
| 3051 | if (internal_ptr->u.syment.n_sclass == C_FILE) { |
| 3052 | /* make a file symbol point to the name in the auxent, since |
| 3053 | the text ".file" is redundant */ |
| 3054 | if ((internal_ptr+1)->u.auxent.x_file.x_n.x_zeroes == 0) { |
| 3055 | /* the filename is a long one, point into the string table */ |
| 3056 | if (string_table == NULL) { |
| 3057 | string_table = build_string_table(abfd); |
| 3058 | } |
| 3059 | |
| 3060 | internal_ptr->u.syment._n._n_n._n_offset = |
| 3061 | (int) (string_table - 4 + |
| 3062 | (internal_ptr+1)->u.auxent.x_file.x_n.x_offset); |
| 3063 | } |
| 3064 | else { |
| 3065 | /* ordinary short filename, put into memory anyway */ |
| 3066 | internal_ptr->u.syment._n._n_n._n_offset = (int) |
| 3067 | copy_name(abfd, (internal_ptr+1)->u.auxent.x_file.x_fname, |
| 3068 | FILNMLEN); |
| 3069 | } |
| 3070 | } |
| 3071 | else { |
| 3072 | if (internal_ptr->u.syment._n._n_n._n_zeroes != 0) { |
| 3073 | /* This is a "short" name. Make it long. */ |
| 3074 | unsigned long i = 0; |
| 3075 | char *newstring = NULL; |
| 3076 | |
| 3077 | /* find the length of this string without walking into memory |
| 3078 | that isn't ours. */ |
| 3079 | for (i = 0; i < 8; ++i) { |
| 3080 | if (internal_ptr->u.syment._n._n_name[i] == '\0') { |
| 3081 | break; |
| 3082 | } /* if end of string */ |
| 3083 | } /* possible lengths of this string. */ |
| 3084 | |
| 3085 | if ((newstring = (PTR) bfd_alloc(abfd, ++i)) == NULL) { |
| 3086 | bfd_error = no_memory; |
| 3087 | return (NULL); |
| 3088 | } /* on error */ |
| 3089 | memset(newstring, 0, i); |
| 3090 | strncpy(newstring, internal_ptr->u.syment._n._n_name, i-1); |
| 3091 | internal_ptr->u.syment._n._n_n._n_offset = (int) newstring; |
| 3092 | internal_ptr->u.syment._n._n_n._n_zeroes = 0; |
| 3093 | } |
| 3094 | else if (!SYMNAME_IN_DEBUG(&internal_ptr->u.syment)) { |
| 3095 | /* Long name already. Point symbol at the string in the table. */ |
| 3096 | if (string_table == NULL) { |
| 3097 | string_table = build_string_table(abfd); |
| 3098 | } |
| 3099 | internal_ptr->u.syment._n._n_n._n_offset = (int) |
| 3100 | (string_table - 4 + internal_ptr->u.syment._n._n_n._n_offset); |
| 3101 | } |
| 3102 | else { |
| 3103 | /* Long name in debug section. Very similar. */ |
| 3104 | if (debug_section == NULL) { |
| 3105 | debug_section = build_debug_section(abfd); |
| 3106 | } |
| 3107 | internal_ptr->u.syment._n._n_n._n_offset = (int) |
| 3108 | (debug_section + internal_ptr->u.syment._n._n_n._n_offset); |
| 3109 | } |
| 3110 | } |
| 3111 | internal_ptr += internal_ptr->u.syment.n_numaux; |
| 3112 | } |
| 3113 | |
| 3114 | obj_raw_syments(abfd) = internal; |
| 3115 | |
| 3116 | return (internal); |
| 3117 | } /* get_normalized_symtab() */ |
| 3118 | |
| 3119 | #endif /* NO_COFF_SYMBOLS */ |
| 3120 | |
| 3121 | static |
| 3122 | struct sec * |
| 3123 | DEFUN(section_from_bfd_index,(abfd, index), |
| 3124 | bfd *abfd AND |
| 3125 | int index) |
| 3126 | { |
| 3127 | struct sec *answer = abfd->sections; |
| 3128 | |
| 3129 | if (index == N_ABS) |
| 3130 | { |
| 3131 | return &bfd_abs_section; |
| 3132 | } |
| 3133 | if (index == N_UNDEF) |
| 3134 | { |
| 3135 | return &bfd_und_section; |
| 3136 | } |
| 3137 | if(index == N_DEBUG) |
| 3138 | { |
| 3139 | return &bfd_debug_section; |
| 3140 | |
| 3141 | } |
| 3142 | |
| 3143 | while (answer) { |
| 3144 | if (answer->target_index == index) |
| 3145 | return answer; |
| 3146 | answer = answer->next; |
| 3147 | } |
| 3148 | BFD_ASSERT(0); |
| 3149 | return &bfd_und_section; /* For gcc -W and lint. Never executed. */ |
| 3150 | } |
| 3151 | |
| 3152 | #ifndef NO_COFF_LINENOS |
| 3153 | |
| 3154 | /* |
| 3155 | SUBSUBSECTION |
| 3156 | Reading Linenumbers |
| 3157 | |
| 3158 | Creating the linenumber table is done by reading in the entire |
| 3159 | coff linenumber table, and creating another table for internal use. |
| 3160 | |
| 3161 | A coff line number table is structured so that each function |
| 3162 | is marked as having a line number of 0. Each line within the |
| 3163 | function is an offset from the first line in the function. The |
| 3164 | base of the line number information for the table is stored in |
| 3165 | the symbol associated with the function. |
| 3166 | |
| 3167 | The information is copied from the external to the internal |
| 3168 | table, and each symbol which marks a function is marked by |
| 3169 | pointing its... |
| 3170 | |
| 3171 | How does this work ? |
| 3172 | |
| 3173 | */ |
| 3174 | |
| 3175 | static boolean |
| 3176 | coff_slurp_line_table(abfd, asect) |
| 3177 | bfd *abfd; |
| 3178 | asection *asect; |
| 3179 | { |
| 3180 | LINENO *native_lineno; |
| 3181 | alent *lineno_cache; |
| 3182 | |
| 3183 | BFD_ASSERT(asect->lineno == (alent *) NULL); |
| 3184 | |
| 3185 | native_lineno = (LINENO *) buy_and_read(abfd, |
| 3186 | asect->line_filepos, |
| 3187 | SEEK_SET, |
| 3188 | (size_t) (LINESZ * |
| 3189 | asect->lineno_count)); |
| 3190 | lineno_cache = |
| 3191 | (alent *) bfd_alloc(abfd, (size_t) ((asect->lineno_count + 1) * sizeof(alent))); |
| 3192 | if (lineno_cache == NULL) { |
| 3193 | bfd_error = no_memory; |
| 3194 | return false; |
| 3195 | } else { |
| 3196 | unsigned int counter = 0; |
| 3197 | alent *cache_ptr = lineno_cache; |
| 3198 | LINENO *src = native_lineno; |
| 3199 | |
| 3200 | while (counter < asect->lineno_count) { |
| 3201 | struct internal_lineno dst; |
| 3202 | coff_swap_lineno_in(abfd, src, &dst); |
| 3203 | cache_ptr->line_number = dst.l_lnno; |
| 3204 | |
| 3205 | if (cache_ptr->line_number == 0) { |
| 3206 | coff_symbol_type *sym = |
| 3207 | (coff_symbol_type *) (dst.l_addr.l_symndx |
| 3208 | + obj_raw_syments(abfd))->u.syment._n._n_n._n_zeroes; |
| 3209 | cache_ptr->u.sym = (asymbol *) sym; |
| 3210 | sym->lineno = cache_ptr; |
| 3211 | } |
| 3212 | else { |
| 3213 | cache_ptr->u.offset = dst.l_addr.l_paddr |
| 3214 | - bfd_section_vma(abfd, asect); |
| 3215 | } /* If no linenumber expect a symbol index */ |
| 3216 | |
| 3217 | cache_ptr++; |
| 3218 | src++; |
| 3219 | counter++; |
| 3220 | } |
| 3221 | cache_ptr->line_number = 0; |
| 3222 | |
| 3223 | } |
| 3224 | asect->lineno = lineno_cache; |
| 3225 | /* FIXME, free native_lineno here, or use alloca or something. */ |
| 3226 | return true; |
| 3227 | } /* coff_slurp_line_table() */ |
| 3228 | |
| 3229 | #endif /* NO_COFF_LINENOS */ |
| 3230 | |
| 3231 | #ifndef NO_COFF_LINENOS |
| 3232 | |
| 3233 | static boolean |
| 3234 | DEFUN(coff_slurp_symbol_table,(abfd), |
| 3235 | bfd *abfd) |
| 3236 | { |
| 3237 | combined_entry_type *native_symbols; |
| 3238 | coff_symbol_type *cached_area; |
| 3239 | unsigned int *table_ptr; |
| 3240 | |
| 3241 | unsigned int number_of_symbols = 0; |
| 3242 | if (obj_symbols(abfd)) |
| 3243 | return true; |
| 3244 | bfd_seek(abfd, obj_sym_filepos(abfd), SEEK_SET); |
| 3245 | |
| 3246 | /* Read in the symbol table */ |
| 3247 | if ((native_symbols = get_normalized_symtab(abfd)) == NULL) { |
| 3248 | return (false); |
| 3249 | } /* on error */ |
| 3250 | |
| 3251 | /* Allocate enough room for all the symbols in cached form */ |
| 3252 | cached_area = |
| 3253 | (coff_symbol_type *) |
| 3254 | bfd_alloc(abfd, (size_t) (bfd_get_symcount(abfd) * sizeof(coff_symbol_type))); |
| 3255 | |
| 3256 | if (cached_area == NULL) { |
| 3257 | bfd_error = no_memory; |
| 3258 | return false; |
| 3259 | } /* on error */ |
| 3260 | table_ptr = |
| 3261 | (unsigned int *) |
| 3262 | bfd_alloc(abfd, (size_t) (bfd_get_symcount(abfd) * sizeof(unsigned int))); |
| 3263 | |
| 3264 | if (table_ptr == NULL) { |
| 3265 | bfd_error = no_memory; |
| 3266 | return false; |
| 3267 | } |
| 3268 | else |
| 3269 | { |
| 3270 | coff_symbol_type *dst = cached_area; |
| 3271 | unsigned int last_native_index = bfd_get_symcount(abfd); |
| 3272 | unsigned int this_index = 0; |
| 3273 | while (this_index < last_native_index) { |
| 3274 | combined_entry_type *src = native_symbols + this_index; |
| 3275 | table_ptr[this_index] = number_of_symbols; |
| 3276 | dst->symbol.the_bfd = abfd; |
| 3277 | |
| 3278 | dst->symbol.name = (char *)(src->u.syment._n._n_n._n_offset); |
| 3279 | /* |
| 3280 | We use the native name field to point to the cached field |
| 3281 | */ |
| 3282 | src->u.syment._n._n_n._n_zeroes = (int) dst; |
| 3283 | dst->symbol.section = section_from_bfd_index(abfd, |
| 3284 | src->u.syment.n_scnum); |
| 3285 | dst->symbol.flags = 0; |
| 3286 | dst->done_lineno = false; |
| 3287 | |
| 3288 | switch (src->u.syment.n_sclass) { |
| 3289 | #ifdef I960 |
| 3290 | case C_LEAFEXT: |
| 3291 | #if 0 |
| 3292 | dst->symbol.value = src->u.syment.n_value - dst->symbol.section->vma; |
| 3293 | dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL; |
| 3294 | dst->symbol.flags |= BSF_NOT_AT_END; |
| 3295 | #endif |
| 3296 | /* Fall through to next case */ |
| 3297 | |
| 3298 | #endif |
| 3299 | |
| 3300 | case C_EXT: |
| 3301 | #ifdef RS6000COFF_C |
| 3302 | case C_HIDEXT: |
| 3303 | #endif |
| 3304 | if ((src->u.syment.n_scnum) == 0) { |
| 3305 | if ((src->u.syment.n_value) == 0) { |
| 3306 | dst->symbol.section = &bfd_und_section; |
| 3307 | dst->symbol.value= 0; |
| 3308 | } |
| 3309 | else { |
| 3310 | dst->symbol.section = &bfd_com_section; |
| 3311 | dst->symbol.value = (src->u.syment.n_value); |
| 3312 | } |
| 3313 | } |
| 3314 | else { |
| 3315 | /* |
| 3316 | Base the value as an index from the base of the |
| 3317 | section |
| 3318 | */ |
| 3319 | |
| 3320 | dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL; |
| 3321 | dst->symbol.value = src->u.syment.n_value - dst->symbol.section->vma; |
| 3322 | |
| 3323 | if (ISFCN((src->u.syment.n_type))) { |
| 3324 | /* |
| 3325 | A function ext does not go at the end of a file |
| 3326 | */ |
| 3327 | dst->symbol.flags |= BSF_NOT_AT_END; |
| 3328 | } |
| 3329 | } |
| 3330 | |
| 3331 | |
| 3332 | break; |
| 3333 | |
| 3334 | case C_STAT: /* static */ |
| 3335 | #ifdef I960 |
| 3336 | case C_LEAFSTAT: /* static leaf procedure */ |
| 3337 | #endif |
| 3338 | case C_LABEL: /* label */ |
| 3339 | if (src->u.syment.n_scnum == -2) |
| 3340 | dst->symbol.flags = BSF_DEBUGGING; |
| 3341 | else |
| 3342 | dst->symbol.flags = BSF_LOCAL; |
| 3343 | /* |
| 3344 | Base the value as an index from the base of the section, if |
| 3345 | there is one |
| 3346 | */ |
| 3347 | if (dst->symbol.section) |
| 3348 | dst->symbol.value = (src->u.syment.n_value) - |
| 3349 | dst->symbol.section->vma; |
| 3350 | else |
| 3351 | dst->symbol.value = (src->u.syment.n_value) ; |
| 3352 | break; |
| 3353 | |
| 3354 | case C_MOS: /* member of structure */ |
| 3355 | case C_EOS: /* end of structure */ |
| 3356 | #ifdef NOTDEF /* C_AUTOARG has the same value */ |
| 3357 | #ifdef C_GLBLREG |
| 3358 | case C_GLBLREG: /* A29k-specific storage class */ |
| 3359 | #endif |
| 3360 | #endif |
| 3361 | case C_REGPARM: /* register parameter */ |
| 3362 | case C_REG: /* register variable */ |
| 3363 | #ifdef C_AUTOARG |
| 3364 | case C_AUTOARG: /* 960-specific storage class */ |
| 3365 | #endif |
| 3366 | case C_TPDEF: /* type definition */ |
| 3367 | case C_ARG: |
| 3368 | case C_AUTO: /* automatic variable */ |
| 3369 | case C_FIELD: /* bit field */ |
| 3370 | case C_ENTAG: /* enumeration tag */ |
| 3371 | case C_MOE: /* member of enumeration */ |
| 3372 | case C_MOU: /* member of union */ |
| 3373 | case C_UNTAG: /* union tag */ |
| 3374 | dst->symbol.flags = BSF_DEBUGGING; |
| 3375 | dst->symbol.value = (src->u.syment.n_value); |
| 3376 | break; |
| 3377 | |
| 3378 | case C_FILE: /* file name */ |
| 3379 | case C_STRTAG: /* structure tag */ |
| 3380 | #ifdef RS6000COFF_C |
| 3381 | case C_BINCL: /* beginning of include file */ |
| 3382 | case C_EINCL: /* ending of include file */ |
| 3383 | case C_GSYM: |
| 3384 | case C_LSYM: |
| 3385 | case C_PSYM: |
| 3386 | case C_RSYM: |
| 3387 | case C_RPSYM: |
| 3388 | case C_STSYM: |
| 3389 | case C_DECL: |
| 3390 | case C_ENTRY: |
| 3391 | case C_FUN: |
| 3392 | case C_BSTAT: |
| 3393 | case C_ESTAT: |
| 3394 | #endif |
| 3395 | dst->symbol.flags = BSF_DEBUGGING; |
| 3396 | dst->symbol.value = (src->u.syment.n_value); |
| 3397 | break; |
| 3398 | |
| 3399 | case C_BLOCK: /* ".bb" or ".eb" */ |
| 3400 | case C_FCN: /* ".bf" or ".ef" */ |
| 3401 | case C_EFCN: /* physical end of function */ |
| 3402 | dst->symbol.flags = BSF_LOCAL; |
| 3403 | /* |
| 3404 | Base the value as an index from the base of the section |
| 3405 | */ |
| 3406 | dst->symbol.value = (src->u.syment.n_value) - dst->symbol.section->vma; |
| 3407 | break; |
| 3408 | |
| 3409 | case C_NULL: |
| 3410 | case C_EXTDEF: /* external definition */ |
| 3411 | case C_ULABEL: /* undefined label */ |
| 3412 | case C_USTATIC: /* undefined static */ |
| 3413 | case C_LINE: /* line # reformatted as symbol table entry */ |
| 3414 | case C_ALIAS: /* duplicate tag */ |
| 3415 | case C_HIDDEN: /* ext symbol in dmert public lib */ |
| 3416 | default: |
| 3417 | |
| 3418 | fprintf(stderr,"Unrecognized storage class %d\n", |
| 3419 | src->u.syment.n_sclass); |
| 3420 | /* abort();*/ |
| 3421 | dst->symbol.flags = BSF_DEBUGGING; |
| 3422 | dst->symbol.value = (src->u.syment.n_value); |
| 3423 | break; |
| 3424 | } |
| 3425 | |
| 3426 | /* BFD_ASSERT(dst->symbol.flags != 0);*/ |
| 3427 | |
| 3428 | dst->native = src; |
| 3429 | |
| 3430 | dst->symbol.udata = 0; |
| 3431 | dst->lineno = (alent *) NULL; |
| 3432 | this_index += (src->u.syment.n_numaux) + 1; |
| 3433 | dst++; |
| 3434 | number_of_symbols++; |
| 3435 | } /* walk the native symtab */ |
| 3436 | } /* bfdize the native symtab */ |
| 3437 | |
| 3438 | obj_symbols(abfd) = cached_area; |
| 3439 | obj_raw_syments(abfd) = native_symbols; |
| 3440 | |
| 3441 | obj_conv_table_size (abfd) = bfd_get_symcount (abfd); |
| 3442 | bfd_get_symcount(abfd) = number_of_symbols; |
| 3443 | obj_convert(abfd) = table_ptr; |
| 3444 | /* Slurp the line tables for each section too */ |
| 3445 | { |
| 3446 | asection *p; |
| 3447 | p = abfd->sections; |
| 3448 | while (p) { |
| 3449 | coff_slurp_line_table(abfd, p); |
| 3450 | p = p->next; |
| 3451 | } |
| 3452 | } |
| 3453 | return true; |
| 3454 | } /* coff_slurp_symbol_table() */ |
| 3455 | |
| 3456 | static unsigned int |
| 3457 | coff_get_symtab_upper_bound(abfd) |
| 3458 | bfd *abfd; |
| 3459 | { |
| 3460 | if (!coff_slurp_symbol_table(abfd)) |
| 3461 | return 0; |
| 3462 | |
| 3463 | return (bfd_get_symcount(abfd) + 1) * (sizeof(coff_symbol_type *)); |
| 3464 | } |
| 3465 | |
| 3466 | |
| 3467 | static unsigned int |
| 3468 | DEFUN(coff_get_symtab, (abfd, alocation), |
| 3469 | bfd *abfd AND |
| 3470 | asymbol **alocation) |
| 3471 | { |
| 3472 | unsigned int counter = 0; |
| 3473 | coff_symbol_type *symbase; |
| 3474 | coff_symbol_type **location = (coff_symbol_type **) (alocation); |
| 3475 | if (!coff_slurp_symbol_table(abfd)) |
| 3476 | return 0; |
| 3477 | |
| 3478 | symbase = obj_symbols(abfd); |
| 3479 | while (counter < bfd_get_symcount(abfd)) |
| 3480 | { |
| 3481 | /* This nasty code looks at the symbol to decide whether or |
| 3482 | not it is descibes a constructor/destructor entry point. It |
| 3483 | is structured this way to (hopefully) speed non matches */ |
| 3484 | #if 0 |
| 3485 | if (0 && symbase->symbol.name[9] == '$') |
| 3486 | { |
| 3487 | bfd_constructor_entry(abfd, |
| 3488 | (asymbol **)location, |
| 3489 | symbase->symbol.name[10] == 'I' ? |
| 3490 | "CTOR" : "DTOR"); |
| 3491 | } |
| 3492 | #endif |
| 3493 | *(location++) = symbase++; |
| 3494 | counter++; |
| 3495 | } |
| 3496 | *location++ = 0; |
| 3497 | return bfd_get_symcount(abfd); |
| 3498 | } |
| 3499 | |
| 3500 | #endif /* NO_COFF_SYMBOLS */ |
| 3501 | |
| 3502 | static unsigned int |
| 3503 | coff_get_reloc_upper_bound(abfd, asect) |
| 3504 | bfd *abfd; |
| 3505 | sec_ptr asect; |
| 3506 | { |
| 3507 | if (bfd_get_format(abfd) != bfd_object) { |
| 3508 | bfd_error = invalid_operation; |
| 3509 | return 0; |
| 3510 | } |
| 3511 | return (asect->reloc_count + 1) * sizeof(arelent *); |
| 3512 | } |
| 3513 | |
| 3514 | /* |
| 3515 | SUBSUBSECTION |
| 3516 | Reading Relocations |
| 3517 | |
| 3518 | Coff relocations are easily transformed into the internal BFD form |
| 3519 | (@code{arelent}). |
| 3520 | |
| 3521 | Reading a coff relocation table is done in the following stages: |
| 3522 | |
| 3523 | o The entire coff relocation table is read into memory. |
| 3524 | |
| 3525 | o Each relocation is processed in turn, first it is swapped from the |
| 3526 | external to the internal form. |
| 3527 | |
| 3528 | o The symbol referenced in the relocation's symbol index is |
| 3529 | turned intoa pointer into the canonical symbol table. Note |
| 3530 | that this table is the same as the one returned by a call to |
| 3531 | @code{bfd_canonicalize_symtab}. The back end will call the |
| 3532 | routine and save the result if a canonicalization hasn't been done. |
| 3533 | |
| 3534 | o The reloc index is turned into a pointer to a howto |
| 3535 | structure, in a back end specific way. For instance, the 386 |
| 3536 | and 960 use the @code{r_type} to directly produce an index |
| 3537 | into a howto table vector; the 88k subtracts a number from the |
| 3538 | @code{r_type} field and creates an addend field. |
| 3539 | |
| 3540 | |
| 3541 | */ |
| 3542 | |
| 3543 | #ifndef CALC_ADDEND |
| 3544 | #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \ |
| 3545 | if (ptr && ptr->the_bfd == abfd \ |
| 3546 | && ((ptr->flags & BSF_OLD_COMMON)== 0)) \ |
| 3547 | { \ |
| 3548 | cache_ptr->addend = -(ptr->section->vma + ptr->value); \ |
| 3549 | } \ |
| 3550 | else { \ |
| 3551 | cache_ptr->addend = 0; \ |
| 3552 | } |
| 3553 | #endif |
| 3554 | |
| 3555 | static boolean |
| 3556 | DEFUN(coff_slurp_reloc_table,(abfd, asect, symbols), |
| 3557 | bfd *abfd AND |
| 3558 | sec_ptr asect AND |
| 3559 | asymbol **symbols) |
| 3560 | { |
| 3561 | RELOC *native_relocs; |
| 3562 | arelent *reloc_cache; |
| 3563 | arelent *cache_ptr; |
| 3564 | |
| 3565 | unsigned int idx; |
| 3566 | |
| 3567 | if (asect->relocation) |
| 3568 | return true; |
| 3569 | if (asect->reloc_count == 0) |
| 3570 | return true; |
| 3571 | if (asect->flags & SEC_CONSTRUCTOR) |
| 3572 | return true; |
| 3573 | #ifndef NO_COFF_SYMBOLS |
| 3574 | if (!coff_slurp_symbol_table(abfd)) |
| 3575 | return false; |
| 3576 | #endif |
| 3577 | native_relocs = |
| 3578 | (RELOC *) buy_and_read(abfd, |
| 3579 | asect->rel_filepos, |
| 3580 | SEEK_SET, |
| 3581 | (size_t) (RELSZ * |
| 3582 | asect->reloc_count)); |
| 3583 | reloc_cache = (arelent *) |
| 3584 | bfd_alloc(abfd, (size_t) (asect->reloc_count * sizeof(arelent))); |
| 3585 | |
| 3586 | if (reloc_cache == NULL) { |
| 3587 | bfd_error = no_memory; |
| 3588 | return false; |
| 3589 | } |
| 3590 | |
| 3591 | |
| 3592 | for (idx = 0; idx < asect->reloc_count; idx ++) |
| 3593 | { |
| 3594 | #ifdef RELOC_PROCESSING |
| 3595 | struct internal_reloc dst; |
| 3596 | struct external_reloc *src; |
| 3597 | |
| 3598 | cache_ptr = reloc_cache + idx; |
| 3599 | src = native_relocs + idx; |
| 3600 | bfd_swap_reloc_in(abfd, src, &dst); |
| 3601 | |
| 3602 | RELOC_PROCESSING(cache_ptr, &dst, symbols, abfd, asect); |
| 3603 | #else |
| 3604 | struct internal_reloc dst; |
| 3605 | asymbol *ptr; |
| 3606 | struct external_reloc *src; |
| 3607 | |
| 3608 | cache_ptr = reloc_cache + idx; |
| 3609 | src = native_relocs + idx; |
| 3610 | |
| 3611 | bfd_swap_reloc_in(abfd, src, &dst); |
| 3612 | |
| 3613 | |
| 3614 | cache_ptr->address = dst.r_vaddr; |
| 3615 | |
| 3616 | if (dst.r_symndx != -1) |
| 3617 | { |
| 3618 | /* @@ Should never be greater than count of symbols! */ |
| 3619 | if (dst.r_symndx >= obj_conv_table_size (abfd)) |
| 3620 | abort (); |
| 3621 | cache_ptr->sym_ptr_ptr = symbols + obj_convert(abfd)[dst.r_symndx]; |
| 3622 | ptr = *(cache_ptr->sym_ptr_ptr); |
| 3623 | } |
| 3624 | else |
| 3625 | { |
| 3626 | cache_ptr->sym_ptr_ptr= bfd_abs_section.symbol_ptr_ptr; |
| 3627 | ptr = 0; |
| 3628 | } |
| 3629 | |
| 3630 | /* |
| 3631 | The symbols definitions that we have read in have been |
| 3632 | relocated as if their sections started at 0. But the offsets |
| 3633 | refering to the symbols in the raw data have not been |
| 3634 | modified, so we have to have a negative addend to compensate. |
| 3635 | |
| 3636 | Note that symbols which used to be common must be left alone */ |
| 3637 | |
| 3638 | /* Calculate any reloc addend by looking at the symbol */ |
| 3639 | CALC_ADDEND(abfd, ptr, dst, cache_ptr); |
| 3640 | |
| 3641 | cache_ptr->address -= asect->vma; |
| 3642 | /* !! cache_ptr->section = (asection *) NULL;*/ |
| 3643 | |
| 3644 | /* Fill in the cache_ptr->howto field from dst.r_type */ |
| 3645 | RTYPE2HOWTO(cache_ptr, &dst); |
| 3646 | #endif |
| 3647 | |
| 3648 | } |
| 3649 | |
| 3650 | asect->relocation = reloc_cache; |
| 3651 | return true; |
| 3652 | } |
| 3653 | |
| 3654 | |
| 3655 | /* This is stupid. This function should be a boolean predicate */ |
| 3656 | static unsigned int |
| 3657 | DEFUN(coff_canonicalize_reloc, (abfd, section, relptr, symbols), |
| 3658 | bfd *abfd AND |
| 3659 | sec_ptr section AND |
| 3660 | arelent **relptr AND |
| 3661 | asymbol **symbols) |
| 3662 | { |
| 3663 | arelent *tblptr = section->relocation; |
| 3664 | unsigned int count = 0; |
| 3665 | |
| 3666 | |
| 3667 | if (section->flags & SEC_CONSTRUCTOR) |
| 3668 | { |
| 3669 | /* this section has relocs made up by us, they are not in the |
| 3670 | file, so take them out of their chain and place them into |
| 3671 | the data area provided */ |
| 3672 | arelent_chain *chain = section->constructor_chain; |
| 3673 | for (count = 0; count < section->reloc_count; count ++) |
| 3674 | { |
| 3675 | *relptr ++ = &chain->relent; |
| 3676 | chain = chain->next; |
| 3677 | } |
| 3678 | |
| 3679 | } |
| 3680 | else |
| 3681 | { |
| 3682 | coff_slurp_reloc_table(abfd, section, symbols); |
| 3683 | |
| 3684 | |
| 3685 | tblptr = section->relocation; |
| 3686 | if (!tblptr) |
| 3687 | return 0; |
| 3688 | |
| 3689 | for (; count++ < section->reloc_count;) |
| 3690 | *relptr++ = tblptr++; |
| 3691 | |
| 3692 | |
| 3693 | } |
| 3694 | *relptr = 0; |
| 3695 | return section->reloc_count; |
| 3696 | } |
| 3697 | |
| 3698 | #ifndef NO_COFF_SYMBOLS |
| 3699 | |
| 3700 | /* |
| 3701 | provided a BFD, a section and an offset into the section, calculate and |
| 3702 | return the name of the source file and the line nearest to the wanted |
| 3703 | location. |
| 3704 | */ |
| 3705 | |
| 3706 | static boolean |
| 3707 | DEFUN(coff_find_nearest_line,(abfd, |
| 3708 | section, |
| 3709 | ignore_symbols, |
| 3710 | offset, |
| 3711 | filename_ptr, |
| 3712 | functionname_ptr, |
| 3713 | line_ptr), |
| 3714 | bfd *abfd AND |
| 3715 | asection *section AND |
| 3716 | asymbol **ignore_symbols AND |
| 3717 | bfd_vma offset AND |
| 3718 | CONST char **filename_ptr AND |
| 3719 | CONST char **functionname_ptr AND |
| 3720 | unsigned int *line_ptr) |
| 3721 | { |
| 3722 | static bfd *cache_abfd; |
| 3723 | static asection *cache_section; |
| 3724 | static bfd_vma cache_offset; |
| 3725 | static unsigned int cache_i; |
| 3726 | static alent *cache_l; |
| 3727 | |
| 3728 | unsigned int i = 0; |
| 3729 | coff_data_type *cof = coff_data(abfd); |
| 3730 | /* Run through the raw syments if available */ |
| 3731 | combined_entry_type *p; |
| 3732 | alent *l; |
| 3733 | unsigned int line_base = 0; |
| 3734 | |
| 3735 | |
| 3736 | *filename_ptr = 0; |
| 3737 | *functionname_ptr = 0; |
| 3738 | *line_ptr = 0; |
| 3739 | |
| 3740 | /* Don't try and find line numbers in a non coff file */ |
| 3741 | if (abfd->xvec->flavour != bfd_target_coff_flavour) |
| 3742 | return false; |
| 3743 | |
| 3744 | if (cof == NULL) |
| 3745 | return false; |
| 3746 | |
| 3747 | p = cof->raw_syments; |
| 3748 | |
| 3749 | for (i = 0; i < cof->raw_syment_count; i++) { |
| 3750 | if (p->u.syment.n_sclass == C_FILE) { |
| 3751 | /* File name has been moved into symbol */ |
| 3752 | *filename_ptr = (char *) p->u.syment._n._n_n._n_offset; |
| 3753 | break; |
| 3754 | } |
| 3755 | p += 1 + p->u.syment.n_numaux; |
| 3756 | } |
| 3757 | /* Now wander though the raw linenumbers of the section */ |
| 3758 | /* |
| 3759 | If this is the same BFD as we were previously called with and this is |
| 3760 | the same section, and the offset we want is further down then we can |
| 3761 | prime the lookup loop |
| 3762 | */ |
| 3763 | if (abfd == cache_abfd && |
| 3764 | section == cache_section && |
| 3765 | offset >= cache_offset) { |
| 3766 | i = cache_i; |
| 3767 | l = cache_l; |
| 3768 | } |
| 3769 | else { |
| 3770 | i = 0; |
| 3771 | l = section->lineno; |
| 3772 | } |
| 3773 | |
| 3774 | for (; i < section->lineno_count; i++) { |
| 3775 | if (l->line_number == 0) { |
| 3776 | /* Get the symbol this line number points at */ |
| 3777 | coff_symbol_type *coff = (coff_symbol_type *) (l->u.sym); |
| 3778 | *functionname_ptr = coff->symbol.name; |
| 3779 | if (coff->native) { |
| 3780 | combined_entry_type *s = coff->native; |
| 3781 | s = s + 1 + s->u.syment.n_numaux; |
| 3782 | /* |
| 3783 | S should now point to the .bf of the function |
| 3784 | */ |
| 3785 | if (s->u.syment.n_numaux) { |
| 3786 | /* |
| 3787 | The linenumber is stored in the auxent |
| 3788 | */ |
| 3789 | union internal_auxent *a = &((s + 1)->u.auxent); |
| 3790 | line_base = a->x_sym.x_misc.x_lnsz.x_lnno; |
| 3791 | } |
| 3792 | } |
| 3793 | } |
| 3794 | else { |
| 3795 | if (l->u.offset > offset) |
| 3796 | break; |
| 3797 | *line_ptr = l->line_number + line_base + 1; |
| 3798 | } |
| 3799 | l++; |
| 3800 | } |
| 3801 | |
| 3802 | cache_abfd = abfd; |
| 3803 | cache_section = section; |
| 3804 | cache_offset = offset; |
| 3805 | cache_i = i; |
| 3806 | cache_l = l; |
| 3807 | |
| 3808 | return true; |
| 3809 | } |
| 3810 | |
| 3811 | #ifdef GNU960 |
| 3812 | file_ptr |
| 3813 | coff_sym_filepos(abfd) |
| 3814 | bfd *abfd; |
| 3815 | { |
| 3816 | return obj_sym_filepos(abfd); |
| 3817 | } |
| 3818 | #endif |
| 3819 | |
| 3820 | #endif /* NO_COFF_SYMBOLS */ |
| 3821 | |
| 3822 | |
| 3823 | static int |
| 3824 | DEFUN(coff_sizeof_headers,(abfd, reloc), |
| 3825 | bfd *abfd AND |
| 3826 | boolean reloc) |
| 3827 | { |
| 3828 | size_t size; |
| 3829 | |
| 3830 | if (reloc == false) { |
| 3831 | size = FILHSZ + AOUTSZ; |
| 3832 | } |
| 3833 | else { |
| 3834 | size = FILHSZ; |
| 3835 | } |
| 3836 | |
| 3837 | size += abfd->section_count * SCNHSZ; |
| 3838 | return size; |
| 3839 | } |
| 3840 | |
| 3841 | static bfd_vma |
| 3842 | DEFUN(get_value,(reloc, seclet), |
| 3843 | arelent *reloc AND |
| 3844 | bfd_seclet_type *seclet) |
| 3845 | { |
| 3846 | bfd_vma value; |
| 3847 | asymbol *symbol = *(reloc->sym_ptr_ptr); |
| 3848 | /* A symbol holds a pointer to a section, and an offset from the |
| 3849 | base of the section. To relocate, we find where the section will |
| 3850 | live in the output and add that in */ |
| 3851 | |
| 3852 | if (symbol->section == &bfd_und_section) |
| 3853 | { |
| 3854 | /* Ouch, this is an undefined symbol.. */ |
| 3855 | bfd_error_vector.undefined_symbol(reloc, seclet); |
| 3856 | value = symbol->value; |
| 3857 | } |
| 3858 | else |
| 3859 | { |
| 3860 | value = symbol->value + |
| 3861 | symbol->section->output_offset + |
| 3862 | symbol->section->output_section->vma; |
| 3863 | } |
| 3864 | |
| 3865 | |
| 3866 | /* Add the value contained in the relocation */ |
| 3867 | value += (short)((reloc->addend) & 0xffff); |
| 3868 | |
| 3869 | return value; |
| 3870 | } |
| 3871 | |
| 3872 | static void |
| 3873 | DEFUN(perform_slip,(s, slip, input_section, value), |
| 3874 | asymbol **s AND |
| 3875 | unsigned int slip AND |
| 3876 | asection *input_section AND |
| 3877 | bfd_vma value) |
| 3878 | { |
| 3879 | |
| 3880 | /* Find all symbols past this point, and make them know |
| 3881 | what's happened */ |
| 3882 | while (*s) |
| 3883 | { |
| 3884 | asymbol *p = *s; |
| 3885 | if (p->section == input_section) |
| 3886 | { |
| 3887 | /* This was pointing into this section, so mangle it */ |
| 3888 | if (p->value > value) |
| 3889 | { |
| 3890 | p->value -= slip; |
| 3891 | } |
| 3892 | } |
| 3893 | s++; |
| 3894 | |
| 3895 | } |
| 3896 | } |
| 3897 | static int |
| 3898 | DEFUN(movb1,(input_section, symbols, r, shrink), |
| 3899 | asection *input_section AND |
| 3900 | asymbol **symbols AND |
| 3901 | arelent *r AND |
| 3902 | unsigned int shrink) |
| 3903 | { |
| 3904 | bfd_vma value = get_value(r,0); |
| 3905 | |
| 3906 | if (value >= 0xff00) |
| 3907 | { |
| 3908 | |
| 3909 | /* Change the reloc type from 16bit, possible 8 to 8bit |
| 3910 | possible 16 */ |
| 3911 | r->howto = r->howto + 1; |
| 3912 | /* The place to relc moves back by one */ |
| 3913 | r->address -=1; |
| 3914 | |
| 3915 | /* This will be two bytes smaller in the long run */ |
| 3916 | shrink +=2 ; |
| 3917 | perform_slip(symbols, 2, input_section, r->address - shrink +1); |
| 3918 | |
| 3919 | |
| 3920 | } |
| 3921 | return shrink; |
| 3922 | } |
| 3923 | |
| 3924 | static int |
| 3925 | DEFUN(jmp1,(input_section, symbols, r, shrink), |
| 3926 | asection *input_section AND |
| 3927 | asymbol **symbols AND |
| 3928 | arelent *r AND |
| 3929 | unsigned int shrink) |
| 3930 | { |
| 3931 | |
| 3932 | |
| 3933 | bfd_vma value = get_value(r, 0); |
| 3934 | |
| 3935 | bfd_vma dot = input_section->output_section->vma + |
| 3936 | input_section->output_offset + r->address; |
| 3937 | bfd_vma gap; |
| 3938 | |
| 3939 | /* See if the address we're looking at within 127 bytes of where |
| 3940 | we are, if so then we can use a small branch rather than the |
| 3941 | jump we were going to */ |
| 3942 | |
| 3943 | gap = value - (dot - shrink); |
| 3944 | |
| 3945 | |
| 3946 | if (-120 < (long)gap && (long)gap < 120 ) |
| 3947 | { |
| 3948 | |
| 3949 | /* Change the reloc type from 16bit, possible 8 to 8bit |
| 3950 | possible 16 */ |
| 3951 | r->howto = r->howto + 1; |
| 3952 | /* The place to relc moves back by one */ |
| 3953 | r->address -=1; |
| 3954 | |
| 3955 | /* This will be two bytes smaller in the long run */ |
| 3956 | shrink +=2 ; |
| 3957 | perform_slip(symbols, 2, input_section, r->address-shrink +1); |
| 3958 | |
| 3959 | |
| 3960 | } |
| 3961 | return shrink; |
| 3962 | } |
| 3963 | |
| 3964 | static boolean |
| 3965 | DEFUN(bfd_coff_relax_section,(abfd, i, symbols), |
| 3966 | bfd *abfd AND |
| 3967 | asection *i AND |
| 3968 | asymbol **symbols) |
| 3969 | { |
| 3970 | |
| 3971 | /* Get enough memory to hold the stuff */ |
| 3972 | bfd *input_bfd = i->owner; |
| 3973 | asection *input_section = i; |
| 3974 | int shrink = 0 ; |
| 3975 | boolean new = false; |
| 3976 | |
| 3977 | bfd_size_type reloc_size = bfd_get_reloc_upper_bound(input_bfd, |
| 3978 | input_section); |
| 3979 | arelent **reloc_vector = (arelent **)bfd_xmalloc(reloc_size); |
| 3980 | |
| 3981 | /* Get the relocs and think about them */ |
| 3982 | if (bfd_canonicalize_reloc(input_bfd, |
| 3983 | input_section, |
| 3984 | reloc_vector, |
| 3985 | symbols)) |
| 3986 | { |
| 3987 | arelent **parent; |
| 3988 | for (parent = reloc_vector; *parent; parent++) |
| 3989 | { |
| 3990 | arelent *r = *parent; |
| 3991 | switch (r->howto->type) { |
| 3992 | case R_MOVB2: |
| 3993 | case R_JMP2: |
| 3994 | |
| 3995 | shrink+=2; |
| 3996 | break; |
| 3997 | |
| 3998 | case R_MOVB1: |
| 3999 | shrink = movb1(input_section, symbols, r, shrink); |
| 4000 | new = true; |
| 4001 | |
| 4002 | break; |
| 4003 | case R_JMP1: |
| 4004 | shrink = jmp1(input_section, symbols, r, shrink); |
| 4005 | new = true; |
| 4006 | |
| 4007 | break; |
| 4008 | } |
| 4009 | } |
| 4010 | |
| 4011 | } |
| 4012 | input_section->_cooked_size -= shrink; |
| 4013 | free((char *)reloc_vector); |
| 4014 | return new; |
| 4015 | } |
| 4016 | |
| 4017 | static bfd_byte * |
| 4018 | DEFUN(bfd_coff_get_relocated_section_contents,(in_abfd, seclet, data), |
| 4019 | bfd *in_abfd AND |
| 4020 | bfd_seclet_type *seclet AND |
| 4021 | bfd_byte *data) |
| 4022 | |
| 4023 | { |
| 4024 | /* Get enough memory to hold the stuff */ |
| 4025 | bfd *input_bfd = seclet->u.indirect.section->owner; |
| 4026 | asection *input_section = seclet->u.indirect.section; |
| 4027 | bfd_size_type reloc_size = bfd_get_reloc_upper_bound(input_bfd, |
| 4028 | input_section); |
| 4029 | arelent **reloc_vector = (arelent **)bfd_xmalloc(reloc_size); |
| 4030 | |
| 4031 | /* read in the section */ |
| 4032 | bfd_get_section_contents(input_bfd, |
| 4033 | input_section, |
| 4034 | data, |
| 4035 | 0, |
| 4036 | input_section->_raw_size); |
| 4037 | |
| 4038 | |
| 4039 | if (bfd_canonicalize_reloc(input_bfd, |
| 4040 | input_section, |
| 4041 | reloc_vector, |
| 4042 | seclet->u.indirect.symbols) ) |
| 4043 | { |
| 4044 | arelent **parent = reloc_vector; |
| 4045 | arelent *reloc ; |
| 4046 | |
| 4047 | |
| 4048 | |
| 4049 | unsigned int dst_address = 0; |
| 4050 | unsigned int src_address = 0; |
| 4051 | unsigned int run; |
| 4052 | unsigned int idx; |
| 4053 | |
| 4054 | /* Find how long a run we can do */ |
| 4055 | while (dst_address < seclet->size) |
| 4056 | { |
| 4057 | |
| 4058 | reloc = *parent; |
| 4059 | if (reloc) |
| 4060 | { |
| 4061 | /* Note that the relaxing didn't tie up the addresses in the |
| 4062 | relocation, so we use the original address to work out the |
| 4063 | run of non-relocated data */ |
| 4064 | run = reloc->address - src_address; |
| 4065 | parent++; |
| 4066 | |
| 4067 | } |
| 4068 | else |
| 4069 | { |
| 4070 | run = seclet->size - dst_address; |
| 4071 | } |
| 4072 | /* Copy the bytes */ |
| 4073 | for (idx = 0; idx < run; idx++) |
| 4074 | { |
| 4075 | data[dst_address++] = data[src_address++]; |
| 4076 | } |
| 4077 | |
| 4078 | /* Now do the relocation */ |
| 4079 | |
| 4080 | if (reloc) |
| 4081 | { |
| 4082 | switch (reloc->howto->type) |
| 4083 | { |
| 4084 | case R_JMP2: |
| 4085 | /* Speciial relaxed type */ |
| 4086 | { |
| 4087 | bfd_vma dot = seclet->offset + dst_address + seclet->u.indirect.section->output_section->vma; |
| 4088 | int gap = get_value(reloc,seclet)-dot-1; |
| 4089 | if ((gap & ~0xff ) != 0 &&((gap & 0xff00)!= 0xff00)) abort(); |
| 4090 | |
| 4091 | bfd_put_8(in_abfd,gap, data+dst_address); |
| 4092 | |
| 4093 | switch (data[dst_address-1]) |
| 4094 | { |
| 4095 | |
| 4096 | case 0x5e: |
| 4097 | /* jsr -> bsr */ |
| 4098 | bfd_put_8(in_abfd, 0x55, data+dst_address-1); |
| 4099 | break; |
| 4100 | case 0x5a: |
| 4101 | /* jmp ->bra */ |
| 4102 | bfd_put_8(in_abfd, 0x40, data+dst_address-1); |
| 4103 | break; |
| 4104 | |
| 4105 | default: |
| 4106 | abort(); |
| 4107 | |
| 4108 | } |
| 4109 | |
| 4110 | |
| 4111 | |
| 4112 | |
| 4113 | dst_address++; |
| 4114 | src_address+=3; |
| 4115 | |
| 4116 | break; |
| 4117 | } |
| 4118 | |
| 4119 | |
| 4120 | case R_MOVB2: |
| 4121 | /* Special relaxed type, there will be a gap between where we |
| 4122 | get stuff from and where we put stuff to now |
| 4123 | |
| 4124 | for a mov.b @aa:16 -> mov.b @aa:8 |
| 4125 | opcode 0x6a 0x0y offset |
| 4126 | -> 0x2y off |
| 4127 | */ |
| 4128 | if (data[dst_address-1] != 0x6a) |
| 4129 | abort(); |
| 4130 | switch (data[src_address] & 0xf0) |
| 4131 | { |
| 4132 | case 0x00: |
| 4133 | /* Src is memory */ |
| 4134 | data[dst_address-1] = (data[src_address] & 0xf) | 0x20; |
| 4135 | break; |
| 4136 | case 0x80: |
| 4137 | /* Src is reg */ |
| 4138 | data[dst_address-1] = (data[src_address] & 0xf) | 0x30; |
| 4139 | break; |
| 4140 | default: |
| 4141 | abort(); |
| 4142 | } |
| 4143 | |
| 4144 | /* the offset must fit ! after all, what was all the relaxing |
| 4145 | about ? */ |
| 4146 | |
| 4147 | bfd_put_8(in_abfd, get_value(reloc, seclet), data + dst_address); |
| 4148 | |
| 4149 | /* Note the magic - src goes up by two bytes, but dst by only |
| 4150 | one */ |
| 4151 | dst_address+=1; |
| 4152 | src_address+=3; |
| 4153 | |
| 4154 | break; |
| 4155 | /* PCrel 8 bits */ |
| 4156 | case R_PCRBYTE: |
| 4157 | { |
| 4158 | bfd_vma dot = seclet->offset + dst_address + seclet->u.indirect.section->output_section->vma; |
| 4159 | int gap = get_value(reloc,seclet)-dot; |
| 4160 | if (gap > 127 || gap < -128) |
| 4161 | { |
| 4162 | bfd_error_vector.reloc_value_truncated(reloc, seclet); |
| 4163 | } |
| 4164 | |
| 4165 | bfd_put_8(in_abfd,gap, data+dst_address); |
| 4166 | dst_address++; |
| 4167 | src_address++; |
| 4168 | |
| 4169 | break; |
| 4170 | } |
| 4171 | |
| 4172 | case R_RELBYTE: |
| 4173 | { |
| 4174 | unsigned int gap =get_value(reloc,seclet); |
| 4175 | if (gap > 0xff && gap < ~0xff) |
| 4176 | { |
| 4177 | bfd_error_vector.reloc_value_truncated(reloc, seclet); |
| 4178 | } |
| 4179 | |
| 4180 | bfd_put_8(in_abfd, gap, data+dst_address); |
| 4181 | dst_address+=1; |
| 4182 | src_address+=1; |
| 4183 | |
| 4184 | |
| 4185 | } |
| 4186 | break; |
| 4187 | case R_JMP1: |
| 4188 | /* A relword which would have like to have been a pcrel */ |
| 4189 | case R_MOVB1: |
| 4190 | /* A relword which would like to have been modified but |
| 4191 | didn't make it */ |
| 4192 | case R_RELWORD: |
| 4193 | bfd_put_16(in_abfd, get_value(reloc,seclet), data+dst_address); |
| 4194 | dst_address+=2; |
| 4195 | src_address+=2; |
| 4196 | break; |
| 4197 | #ifdef EXTRA_CASES |
| 4198 | EXTRA_CASES |
| 4199 | #else |
| 4200 | |
| 4201 | default: |
| 4202 | abort(); |
| 4203 | #endif |
| 4204 | } |
| 4205 | } |
| 4206 | } |
| 4207 | } |
| 4208 | free((char *)reloc_vector); |
| 4209 | return data; |
| 4210 | |
| 4211 | } |
| 4212 | |
| 4213 | |
| 4214 | #define coff_core_file_failing_command _bfd_dummy_core_file_failing_command |
| 4215 | #define coff_core_file_failing_signal _bfd_dummy_core_file_failing_signal |
| 4216 | #define coff_core_file_matches_executable_p _bfd_dummy_core_file_matches_executable_p |
| 4217 | #define coff_slurp_armap bfd_slurp_coff_armap |
| 4218 | #define coff_slurp_extended_name_table _bfd_slurp_extended_name_table |
| 4219 | #define coff_truncate_arname bfd_dont_truncate_arname |
| 4220 | #define coff_openr_next_archived_file bfd_generic_openr_next_archived_file |
| 4221 | #define coff_generic_stat_arch_elt bfd_generic_stat_arch_elt |
| 4222 | #define coff_get_section_contents bfd_generic_get_section_contents |
| 4223 | #define coff_close_and_cleanup bfd_generic_close_and_cleanup |
| 4224 | |
| 4225 | #define coff_bfd_debug_info_start bfd_void |
| 4226 | #define coff_bfd_debug_info_end bfd_void |
| 4227 | #define coff_bfd_debug_info_accumulate (PROTO(void,(*),(bfd*, struct sec *))) bfd_void |
| 4228 | #define coff_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents |
| 4229 | #define coff_bfd_relax_section bfd_generic_relax_section |
| 4230 | |